WO2006129665A1 - カラムスペーサ用硬化性樹脂組成物、カラムスペーサ及び液晶表示素子 - Google Patents
カラムスペーサ用硬化性樹脂組成物、カラムスペーサ及び液晶表示素子 Download PDFInfo
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- WO2006129665A1 WO2006129665A1 PCT/JP2006/310786 JP2006310786W WO2006129665A1 WO 2006129665 A1 WO2006129665 A1 WO 2006129665A1 JP 2006310786 W JP2006310786 W JP 2006310786W WO 2006129665 A1 WO2006129665 A1 WO 2006129665A1
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- Prior art keywords
- compound
- meth
- curable resin
- resin composition
- molecule
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- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
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- PBPCCBLJHAAYFD-UHFFFAOYSA-N tetraphen-1-ol Chemical compound C1=CC=CC2=CC3=C4C(O)=CC=CC4=CC=C3C=C21 PBPCCBLJHAAYFD-UHFFFAOYSA-N 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/02—Materials and properties organic material
- G02F2202/022—Materials and properties organic material polymeric
- G02F2202/023—Materials and properties organic material polymeric curable
Definitions
- the present invention provides a column spacer having a clear pattern that has excellent developability and solubility, and that does not generate a development residue when forming a pattern of a column spacer used for manufacturing a liquid crystal display device.
- a curable resin composition for a column spacer that can be formed, and a column spacer having a clear pattern that does not cause development residue when forming a pattern of a column spacer used for manufacturing a liquid crystal display element can be formed.
- a curable resin composition for column spacers that can effectively suppress the occurrence of color unevenness due to poor gravity without causing low-temperature foaming, and a curable resin composition for column spacers.
- the present invention relates to a column spacer and a liquid crystal display element.
- a liquid crystal display device includes a spacer for maintaining a constant gap between two glass substrates, and in addition to these, a transparent electrode, a polarizing plate, and an alignment layer or the like that orients a liquid crystal substance. It is configured.
- a fine particle spacer having a particle size of about several millimeters / zm is mainly used.
- the fine particle spacer since the fine particle spacer is randomly distributed on the glass substrate, the fine particle spacer may be disposed in the pixel portion.
- a one drop fill method (ODF method) has been proposed to increase the productivity of liquid crystal display elements.
- ODF method a one drop fill method
- a predetermined amount of liquid crystal is dropped on the liquid crystal encapsulating surface of a glass substrate, and the other liquid crystal panel substrate is held in a state where a predetermined cell gap can be maintained under vacuum, and bonded together.
- This is a method for manufacturing a display element.
- the liquid crystal display element is larger than the conventional method. Even if the area is reduced and the cell gap is narrowed, liquid crystal can be easily sealed.
- the DF method is considered to become the mainstream of liquid crystal display device manufacturing methods.
- the fine particle spacer sprayed when the liquid crystal is dropped or when the counter substrate is bonded is flowed along with the flow of the liquid crystal, and the fine particle spacer on the substrate is moved. There arises a problem of non-uniform distribution. If the distribution of the fine particle spacer is not uniform, the cell gap of the liquid crystal cell will vary and there will be a problem of color irregularity in the liquid crystal display.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-91954
- Patent Document 2 Japanese Patent Laid-Open No. 2002-251007
- the present invention has an excellent developability and solubility, and has a clear pattern that does not generate a development residue when forming a pattern of a column spacer used for manufacturing a liquid crystal display element.
- a curable resin composition for column spacers that can form column spacers, and a column spacer with a clear pattern that does not generate development residue when forming patterns for column spacers used in the manufacture of liquid crystal display elements.
- a curable resin composition for a column spacer that can form a liquid crystal display element that can effectively prevent color unevenness due to poor gravity without causing low-temperature foaming. It is an object of the present invention to provide a column spacer and a liquid crystal display device using a curable resin composition for a column spacer.
- the present invention 1 provides a curable resin composition for a column spacer, comprising a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- the compound having two or more polymerizable unsaturated bonds in the molecule is a compound having two or more polymerizable unsaturated bonds in the molecule modified by oxidation, the curability for column spacers. It is a rosin composition.
- the present invention 2 includes a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali
- a curable resin composition for a column spacer which is a compound having one or more hydroxyl groups and two or more polymerizable unsaturated bonds in the molecule.
- the present invention 3 is a curable resin composition for a column spacer, comprising a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- the compound having two or more polymerizable unsaturated bonds in the molecule is a column having two or more polymerizable unsaturated bonds in the molecule modified with rataton and oxide. It is a curable resin composition for pacers.
- the present invention 4 is a curable resin composition for column spacers comprising a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- the compound having two or more polymerizable unsaturated bonds in the molecule is a compound having one or more hydroxyl groups and two or more polymerizable unsaturated bonds in the rataton-modified molecule.
- the present invention 5 is a curable resin composition for a column spacer, comprising a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- the compound having two or more polymerizable unsaturated bonds in the molecule has one or more hydroxyl groups and two or more polymerizable unsaturated bonds in the rataton-modified and oxide-modified molecules.
- the present invention 6 provides a curable resin composition for a column spacer, comprising a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- the column spacer wherein the compound having two or more polymerizable unsaturated bonds in the molecule is a compound having one or more carboxyl groups and two or more polymerizable unsaturated bonds in the molecule. It is a curable rosin composition.
- a curable resin for column spacers has a compound having two or more polymerizable unsaturated bonds in the molecule of a specific structure, and an alkali-soluble polymer compound. In combination with, it has excellent resolution when forming column spacer patterns.
- the inventors have found that a column spacer having a clear pattern can be formed, and that a column spacer having excellent flexibility and high compression recovery characteristics can be obtained, and the present invention has been completed.
- the curable resin composition for a column spacer of the present invention 1 comprises a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator. To do.
- the compound having two or more polymerizable unsaturated bonds in the molecule is a compound having two or more polymerizable unsaturated bonds in the oxide-modified molecule. is there.
- the compound having two or more polymerizable unsaturated bonds in the oxide-modified molecule (hereinafter also referred to as a polymerizable compound according to the present invention 1) is not particularly limited. It is preferable that it is a polyfunctional (meth) ataretoy compound (hereinafter also referred to as a polyfunctional (meta) atalylate according to the first aspect of the present invention!) That has been modified by xoxide.
- the curable resin composition for a column spacer of the present invention 1 containing such a polymerizable compound according to the present invention 1 is a column formed by using the curable resin composition for a column spacer.
- the spacer is excellent in recovering the compressive deformation force, and the liquid crystal display device manufactured using such a column spacer has a “gravity failure” due to liquid crystal expansion during heating and the liquid crystal shrinkage at low temperatures. “Low-temperature foaming” can be suppressed at the same time, and when forming a pattern to be a column spacer by a photolithographic method, sharp resolution without generating a development residue can be obtained.
- “oxide modification” means that when the polymerizable compound according to the present invention 1 is a polyfunctional (meth) acrylate, the (meth) ate larito toy compound.
- the oxide is not particularly limited, and for example, ethylene oxide, propylene oxide, 1,2 butylene oxide, 2,3 butylene oxide, 1,3 butylene oxide, oxetane, tetrahydrofuran, 3-methyltetrahydrofuran, styrene oxide. , A-olefin oxide, epichlorohydrin and the like. Of these, ethylene oxide and propylene oxide are preferably used. These oxides may be used alone or in combination of two or more.
- the polyfunctional (meth) acrylate according to the present invention 1 is not particularly limited, and examples thereof include neopentyl glycol di (meth) acrylate and 3-methyl-1,5-pentanediol di (meth) acrylate.
- tri- or higher-functional (meth) ataryl-toy compound modified with ethylene oxide and Z or propylene oxide is particularly suitable because it is easy to improve exposure sensitivity because of rapid progress of polymerization reaction. It is.
- These polyfunctional (meth) acrylates according to the present invention 1 may be used alone or in combination of two or more.
- the number of functional groups of the polyfunctional (meth) acrylate relay compound as a base is n.
- the preferred lower limit is 0.5 nmol
- the preferred upper limit is 10 It is le. If the amount is less than 5 nmol, the resolution and solubility during development may be insufficient. If the amount exceeds 10 ⁇ mol, the affinity for an alkaline developer will increase and the resolution due to swelling will increase. The decrease in is likely to occur.
- a more preferable lower limit is In mole, and a more preferable upper limit is 5 nmol.
- the specific method for synthesizing the polyfunctional (meth) acrylate according to the present invention 1 by oxide-modifying the polyfunctional (meth) acrylate compound is not particularly limited.
- polyhydric alcohol And a method in which an oxide-modified alcohol is synthesized by reacting it with an oxide, and then this oxide-modified alcohol is reacted with (meth) acrylic acid.
- the content of the polymerizable compound according to the present invention 1 is not particularly limited, but the curing for the column spacer of the present invention 1
- the preferred lower limit is 20% by weight and the preferred upper limit is 90% by weight, based on the solid content of the water-soluble resin composition. If it is less than 20% by weight, the curable resin composition for column spacers of the present invention 1 may not be sufficiently photocured and a column spacer pattern may not be formed by photolithography. If the weight percentage is exceeded, the solubility in an alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 1 is insufficient. Pattern developability may be insufficient.
- a more preferred lower limit is 40% by weight, and a more preferred upper limit is 80% by weight.
- the curable resin composition for a column spacer according to the present invention 1 includes an oxide in order to adjust the reactivity, developability and the like in addition to the polymerizable compound according to the present invention 1.
- An unmodified compound having a polymerizable unsaturated bond (hereinafter simply referred to as a polymerizable unsaturated bond-containing compound) may be used in a range without impairing the flexibility of the column spacer to be produced. !
- the polymerizable unsaturated bond-containing compound is not particularly limited, and examples of the bifunctional compound include neopentyl glycol di (meth) acrylate, 3-methyl 1,5-pentane diol di (meth) acrylate.
- the trifunctional or higher functional group includes, for example, trimethylol ethane tri (meth) acrylate, relate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol tetra And polyfunctional (meth) attareito toy compounds such as (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hex (meth) acrylate, and the like.
- the blending amount is not particularly limited, but the polymerizable property according to the above-mentioned present invention 1 Preferably less than 40% by weight of the total amount with the compound. If it exceeds 40% by weight, the flexibility of the column spacer to be produced is impaired, and the effect of suppressing poor gravity and low-temperature foaming may be reduced. More preferably, the upper limit is 30% by weight.
- the curable resin composition for a column spacer of the first invention contains an alkali-soluble polymer compound.
- the alkali-soluble polymer compound is not particularly limited, but is preferably an alkali-soluble carboxyl group-containing polymer compound containing a carboxyl group.
- the alkali-soluble carboxyl group-containing polymer compound include a carboxyl group-containing monofunctional unsaturated compound, a monofunctional compound having a reactive functional group such as an epoxy group, and a compound having an unsaturated double bond. And the like (hereinafter, also simply referred to as a copolymer).
- commercially available products such as “Cyclomer P” manufactured by Daicel Engineering, Inc. may be used.
- the carboxyl group-containing monofunctional unsaturated compound is not particularly limited. Examples include crylic acid and methacrylic acid.
- the monofunctional compound having an epoxy group is not particularly limited.
- glycidyl methacrylate, 6,7-epoxyheptyl methacrylate, o-butylbenzyl glycidyl ether, m-butenyl glycidyl ether and p-vinylbenzyl glycidyl ether are copolymerization reactivity and the column spacer obtained.
- Point power to increase the strength is preferably used. These may be used alone or in combination of two or more.
- R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and n is an integer of 0 to 10.
- the copolymer is not particularly limited.
- methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, sec-butyl ( (Meth) acrylic acid alkyl esters such as (meth) acrylate, t-butyl (meth) acrylate; methyl (meth) acrylate, alkyl (meth) acrylate such as isopropyl (meth) acrylate; cyclohexyl (Meth) acrylic compounds such as (meth) acrylate, 2-methylcyclohexyl (meth) acrylate, dicyclopental (meth) acrylate, dicyclopenta-roxetyl (meth) acrylate, isopropylate (meth) acrylate Acid cyclic al Kill ester; cyclohexyl (meth) acrylate, 2-methylcyclohexyl (meth)
- styrene, t-butyl (meth) acrylate, dicyclopental (meth) acrylate, p-methoxy styrene, 2-methylcyclohexyl (meth) acrylate, 1,3-butadiene, etc. are common. From the viewpoint of polymerization reactivity and solubility in an aqueous alkali solution, it is preferred. These may be used alone or in combination of two or more.
- the preferable lower limit of the ratio of the components derived from the carboxyl group-containing monofunctional unsaturated compound is 10% by weight, and the preferable upper limit is 40% by weight.
- the preferable upper limit is 40% by weight.
- it is less than 10% by weight it is difficult to impart alkali solubility.
- it exceeds 40% by weight a column spacer is produced using the curable resin composition for column spacers of the present invention 1. It may be difficult to form a column spacer pattern in which the swelling at the time of image formation is significant.
- a more preferred lower limit is 15% by weight, and a more preferred upper limit is 30% by weight.
- the weight average molecular weight of the copolymer is not particularly limited, but a preferable lower limit is 3000 and a preferable upper limit is 100,000. If it is less than 3000, the developability when producing a column spacer using the curable resin composition for column spacers of the present invention 1 may be reduced. The resolution at the time of producing a column spacer using the curable resin composition for a column spacer of 1 may be lowered. A more preferable lower limit is 5000, and a more preferable upper limit is 50,000.
- the method for copolymerizing the carboxyl group-containing monofunctional unsaturated compound with a monofunctional compound having a reactive functional group such as an unsaturated double bond or an epoxy group is not particularly limited.
- polymerization method examples include polymerization using a conventionally known method such as bulk polymerization, solution polymerization, suspension polymerization, dispersion polymerization, and emulsion polymerization using a polymerization initiator and, if necessary, a molecular weight regulator. Of these, solution polymerization is preferred.
- Examples of the solvent in the case of producing the copolymer by the solution polymerization method include aliphatic alcohols such as methanol, ethanol, isopropanol and glycol; cellosolvs such as cellosolve and butylcetone solve; carbitol, Carbitols such as butyl carbitol; Cellosolve acetate, carbitol acetate, propylene glycol monomethyl ether, esters such as acetate; Ethers such as diethylene glycol dimethyl ether; Cyclic ethers such as tetrahydrofuran, cyclohexanone, methyl ethyl ketone, methyl isobutyl ketone Ketones such as: organic solvents having polarity such as dimethyl sulfoxide and dimethylformamide can be used.
- aliphatic alcohols such as methanol, ethanol, isopropanol and glycol
- cellosolvs such as cellosolve and butylcetone
- Examples of the medium for producing the copolymer by non-aqueous dispersion polymerization such as suspension polymerization, dispersion polymerization, and emulsion polymerization include benzene, toluene, hexane, and cyclohexane. Liquid hydrocarbons and other nonpolar organic solvents can be used.
- the radical polymerization initiator used in the production of the copolymer is not particularly limited.
- a conventionally known radical polymerization initiator such as a peroxide or an azo initiator can be used.
- the amount of the radical polymerization initiator used is not particularly limited.
- a preferable lower limit is 0.001 part by weight and a preferable upper limit is 5.0 parts by weight with respect to 100 parts by weight of all monomer components of the copolymer.
- a more preferred lower limit is 0.5 parts by weight, and a more preferred upper limit is 3.0 parts by weight.
- the molecular weight regulator for example, a-methylstyrene dimer, mercabtan chain transfer agent and the like can be used.
- a-methylstyrene dimer, mercabtan chain transfer agent and the like can be used.
- long chain alkyl mercabtan having 8 or more carbon atoms is preferred because of its low odor and coloration.
- the content of the alkali-soluble polymer compound is not particularly limited, but the preferred lower limit is 10% by weight, preferably The upper limit is 80% by weight. If it is less than 10% by weight, the solubility in an alkaline developer used when producing a column spacer using the curable resin composition for a column spacer of the present invention 1 is insufficient, and the column The developability of the spacer pattern may be insufficient, and if it exceeds 80% by weight, the curable resin composition for column spacers of the present invention 1 is not fully photocured and can be obtained by photolithography. Column spacer pattern may not be formed. A more preferred lower limit is 20% by weight, and a more preferred upper limit is 60% by weight.
- the curable resin composition for a column spacer of the present invention 1 contains a photoreaction initiator.
- the photoinitiator is not particularly limited, and examples thereof include conventionally known photoinitiators such as benzoin, benzophenone, benzyl, thixanthone, and derivatives thereof.
- benzoin methyl ether benzoin ethyl ether, benzoin isobutyl ether, Michler's ketone, (4 (methylphenylthio) phenol), failmethanone, 2,2-dimethoxy-1,1,2-diphenylethane 1 —On, 1-hydroxycyclohexyl-phenyl monoketone, 2-hydroxy-2-methyl 1-phenyl-propane 1-one, 1— (4- (2 hydroxyethoxy) monophenyl) 2 Hydroxy 1 2 Methyl 1 propane 1-on, 2 Methyl 1 (4 methylthio) phenol) 2 —Morpholinopropane 1-one, 2-Benzyl-1-2-dimethylamino 1- (4-Morpholinol) 1-butanone 1, Bis (2, 4, 6 trimethylbenzoyl) monophenylphosphine oxide, bis (2, 6 dimethoxybenzoyl) mono 2, 4, 4 trimethyl Pen chill phosphine oxide, 2, 4,
- 2- (4 methylbenzyl) 2 (dimethylamino) 1 (4 morpholinophenol) butan-1-one, 2- (4-ethylbenzyl) -2- (dimethylamino) -1- (4 morpholinophane 1-one butane 1-one, 2- (4-i-propylbenzyl) 2-(dimethylamino) 1- (4 morpholinophenol) butane 1-one, etc. are also preferably used and are commercially available.
- Examples of the product include “Irgacure 369” and “Irgacure 379” (manufactured by Ciba Specialty Chemicals).
- photoinitiators may be used alone or in combination of two or more.
- the content of the photoinitiator is not particularly limited, but the preferred lower limit is 1% by weight and the preferred upper limit is 20 %. If it is less than 1% by weight, the curable resin composition for column spacers of the present invention 1 may not be photocured, and if it exceeds 20% by weight, it may not be possible to develop with a single force in photolithography.
- a more preferred lower limit is 5% by weight, and a more preferred upper limit is 15% by weight.
- the curable resin composition for a column spacer of the present invention 2 comprises a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- a curable resin composition for a column spacer, wherein the compound having two or more polymerizable unsaturated bonds in the molecule is composed of one or more hydroxyl groups and two or more polymerizable molecules in the oxide-modified molecule.
- the compound having two or more polymerizable unsaturated bonds in the molecule includes one or more hydroxyl groups in the oxide-modified molecule and 2 It is a compound having the above polymerizable unsaturated bond.
- Invention 2 containing a compound having one or more hydroxyl groups and two or more polymerizable unsaturated bonds (hereinafter also referred to as a polymerizable compound according to Invention 2) in the oxide-modified molecule.
- the curable rosin composition for column spacers of the present invention is such that the column spacer using the curable rosin composition for column spacers has excellent compressibility and recoverability, and such a column spacer.
- the polymerizable compound according to the second aspect of the present invention is not particularly limited.
- a polyfunctional (meth) attareito toy compound hereinafter referred to as an oxide-modified molecule having one or more hydroxyl groups.
- the polyfunctional (meth) acrylate according to the present invention 2 is also preferred.
- Examples of the polyfunctional (meth) acrylate according to the present invention 2 include, for example, trimethylol propane (meth) acrylate, trimethylol ethanedi (meth) acrylate, pentaerythritol di (meth) acrylate, Difunctional methyl propane di (meth) acrylate, dipentaerythritol di (meth) acrylate, etc.
- Tri- or more functional (meta) such as pentaerythritol tri (meth) acrylate, ditrimethylolpropane tri (meth) acrylate, dipentaerythritol tetra (meth) acrylate, dipentaerythritol pent (meth) acrylate )
- a compound obtained by oxide-modifying an atalerito toy compound Among them, a compound obtained by modifying a trifunctional or higher-functional (meth) attareito toy compound with an oxide is particularly suitable because it can easily improve the exposure sensitivity in which the polymerization reaction proceeds rapidly.
- These polyfunctional (meth) attale toy compounds according to the present invention 2 may be used alone or in combination of two or more.
- the preferred lower limit is 0.5 nmole and the preferred upper limit is 10 ⁇ mol per mole of the polyfunctional (meth) ataretoy compound. If the amount is less than 5 nmol, the resolution and solubility during development may be insufficient. If the amount exceeds 10 ⁇ mol, the affinity for an alkaline developer will increase and the resolution due to swelling will increase. The decrease in is likely to occur.
- a more preferable lower limit is In mole, and a more preferable upper limit is 5 nmol.
- the above-mentioned polymerizable compound according to the present invention 2 is obtained by reacting, for example, a trivalent or higher alcohol with an oxide. After synthesizing the denatured alcohol, a method in which (meth) acrylic acid is reacted with the oxide-modified alcohol in such a ratio as to generate two or more polymerizable unsaturated bonds while remaining a hydroxyl group; After reacting this alcohol with oxide to synthesize an oxide-modified alcohol, this oxide-modified alcohol and (meth) acrylic acid are esterified to have three or more polymerizable unsaturated bonds in the oxide-modified molecule.
- the compound having a hydroxyl group and a primary or secondary amino group is reacted at a ratio such that two or more polymerizable unsaturated bonds remain. It can be suitably obtained by a method in which introducing a hydroxyl group by.
- the compound having three or more polymerizable unsaturated bonds in the oxide-modified molecule is not particularly limited, and examples thereof include pentaerythritol tetra (meth) acrylate, ditrimethylol propane tetra (meth) acrylate, Examples thereof include compounds obtained by oxide modification of dipentaerythritol hexa (meth) acrylate and the like.
- the compound having a hydroxyl group and a primary or secondary amino group is not particularly limited, and examples thereof include monoethanolamine, n -propanolamine, isopropanolamine, jetanolamine, diisopropanolamine and the like. Is mentioned.
- the compound having three or more polymerizable unsaturated bonds in the above oxide-modified molecule is reacted with a compound having a hydroxyl group and a primary or secondary amino group, to thereby obtain a polymerizable compound according to the present invention 2.
- the hydroxyl group and the primary or secondary group are bonded to the unsaturated double bond portion of the compound having three or more polymerizable unsaturated bonds in the oxide-modified molecule by a so-called Michael addition reaction.
- An amino group of a compound having an amino group is added.
- the solvent for diluting the compound having a hydroxyl group and a primary or secondary amino group is not particularly limited.
- the solvent does not react with the compound having the hydroxyl group and a primary or secondary amino group.
- a compound having compatibility with a compound having three or more polymerizable unsaturated bonds in the oxide-modified molecule and a compound having a hydroxyl group and a primary or secondary amino group is appropriately selected.
- it is a water-soluble solvent having a boiling point of 64 to 200 ° C.
- the concentration of the compound having the hydroxyl group and the primary or secondary amino group in the solvent when dropped into the compound having three or more polymerizable unsaturated bonds in the oxide-modified molecule is not particularly limited.
- the preferred lower limit is 5% by weight
- the preferred upper limit is 30% by weight
- the more preferred lower limit is 10% by weight
- the more preferred upper limit is 20% by weight.
- the catalyst is not particularly limited, and examples thereof include alkali metal alcoholates, organometallic compounds such as tin titanium, metal hydroxides, tertiary amines, and the like.
- the reaction time of the Michael addition reaction is not particularly limited, but is preferably The limit is 1 hour, and the preferred upper limit is about 10 hours, the more preferred lower limit is 3 hours, the more preferred LV, and the upper limit is about 7 hours.
- the reaction solvent used for the Michael addition reaction is not particularly limited, but the compound having three or more polymerizable unsaturated bonds in the oxide-modified molecule, and a hydroxyl group and a primary or secondary amino group. It is preferably a water-soluble solvent that does not react and can dissolve these raw materials uniformly.
- Specific examples include, for example, methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, tert butyl alcohol, N-methylpyrrolidone, ⁇ -force prolatatum, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, ethylene glycol normonoethylenole.
- Ether ethylene glycol monoacetate, ethylene glycol monomethyl ether acetate, 2- (methoxymethoxy) ethanol, 2-isopropoxy réellenol, 2-isopentyloxyethanol, 2-butoxyethanol, furfuryl alcohol , Tetrahydrofurfuryl alcohol, tetrahydrofuran, diethylene glycol monomethinoreethenole, diethyleneglycolenomethinoleetenore, diethyleneglycolenoremono Butinoleethenore, Triethylene glycol, Triethyleneglycol monomethyl ether, Propylene glycolenomonomethinoatenore, Propyleneglycolenomonoethylenoreatenore, Dipropyleneglycolenomonomonoenoleether, Dipropyleneglycolenomethenotheno Ether, glycerin ethers, glycerin monoacetate, diethylene glycol dimethyl ether, diethylene glycol jety
- the polymerization inhibitor is not particularly limited, and examples thereof include conventionally known ones such as hydroquinone, methylhydroquinone, quinone derivatives such as ⁇ benzoquinone, and phenol derivatives such as 2,6 di tert-butyl- ⁇ talesol. It is done.
- the amount of hydroxyl groups in the polymerizable compound according to the second aspect of the present invention is not particularly limited, but a preferred lower limit is 5 mg KOHZg, and a preferred upper limit is 200 mg KOHZg. If it is less than 5 mgKOHZg, the effect of developing the curable resin composition for column spacers of the present invention 2 may not be obtained.If it exceeds 200 mgKOHZg, problems such as gelation may occur. It becomes easy.
- a more preferred lower limit is 10 mg KOHZg, and a more preferred upper limit is 50 mg KOHZ g.
- the content of the polymerizable compound according to the present invention 2 is not particularly limited, but the curing for the column spacer of the present invention 2 is not limited.
- the preferred lower limit is 20% by weight and the preferred upper limit is 90% by weight, based on the solid content of the water-soluble resin composition. If it is less than 20% by weight, the curable resin composition for a column spacer of the present invention 2 may not be sufficiently photocured and a column spacer pattern may not be formed by photolithography.
- the solubility in an alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 2 is insufficient, and the Pattern developability may be insufficient.
- a more preferred lower limit is 40% by weight, and a more preferred upper limit is 80% by weight.
- the curable resin composition for a column spacer of the present invention 2 is similar to the curable resin composition for a column spacer of the present invention 1 described above, and the polymerizable compound according to the above-mentioned present invention 2. In addition to the above, it may contain a polymerizable unsaturated bond-containing compound.
- the curable resin composition for a column spacer of the present invention 2 contains an alkali-soluble polymer compound.
- alkali-soluble polymer compound examples include those similar to the alkali-soluble polymer compound described in the above-described curable resin composition for column spacers of the first invention.
- the content of the alkali-soluble polymer compound is not particularly limited, but the preferred lower limit is 10% by weight, and the preferred upper limit is 80%. %.
- the content is less than 10% by weight, an alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 2 is used.
- the solubility of the column spacer is insufficient, and the developability of the pattern of the column spacer to be produced may be insufficient. If it exceeds 80% by weight, the curable resin composition for a column spacer of the present invention 2 is sufficient. In some cases, the pattern of the column spacer cannot be formed by photolithography without photocuring.
- a more preferred lower limit is 20% by weight, and a more preferred upper limit is 60% by weight.
- the curable resin composition for a column spacer of 2 of the present invention contains a photoreaction initiator.
- photoinitiator examples include the same photoinitiators as those described in the above-described curable resin composition for column spacers of the first invention.
- the content of the photoinitiator is not particularly limited, but a preferred lower limit is 1% by weight, and a preferred upper limit is 20% by weight. is there. If it is less than 1% by weight, the curable resin composition for column spacers of the present invention 2 may not be photocured, and if it exceeds 20% by weight, it may not be possible to develop with a single force in photolithography. A more preferred lower limit is 5% by weight, and a more preferred upper limit is 15% by weight.
- the curable resin composition for a column spacer of the present invention 3 contains a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- a curable resin composition for a column spacer, wherein the compound having two or more polymerizable unsaturated bonds in the molecule is composed of two or more polymerizable unsaturated bonds in the molecule modified with rataton and oxide.
- the compound having two or more polymerizable unsaturated bonds in the molecule contains two or more in the molecule modified with rataton and oxide. It is a compound having a polymerizable unsaturated bond.
- the column spacer of the present invention 3 containing a compound having two or more polymerizable unsaturated bonds (hereinafter, also referred to as a polymerizable compound according to the present invention 3) in the molecule modified with such rataton and oxide.
- the column spacer using the curable resin composition for column spacers has excellent recoverability from compression deformation.
- the liquid crystal display device manufactured using a column spacer can simultaneously suppress “gravity failure” due to liquid crystal expansion during heating and “cold foaming” due to liquid crystal shrinkage at low temperatures. When forming a pattern that becomes a column spacer by this method, it is possible to obtain a sharp resolution without generating a development residue.
- the polymerizable compound according to the present invention 3 is not particularly limited.
- a polyfunctional (meth) attareito toy compound hereinafter, referred to as the present invention 3 modified with rataton and oxide.
- Such polyfunctional (meth) acrylates are preferred.
- the rataton modification means that when the polymerizable compound according to the present invention 3 is the polyfunctional (meth) acrylate according to the present invention 3, It means that a rataton ring-opening product or a ring-opening polymer is introduced between the alcohol-derived part of the compound and the (meth) ataryloyl group.
- the rataton is not particularly limited, but force prolatathon is preferably used.
- the force prolatatatone is not particularly limited, and examples thereof include ⁇ -force prolatatanes, ⁇ -force prolactons, and ⁇ -force prolatatones. Among them, ⁇ -force prolatatones are preferable.
- the ratatones other than the force prolatatanes are not particularly limited, and examples thereof include ⁇ valero latatanes, ⁇ -buty mouth latatones, ⁇ -valero latatanes, and 13-propiolatatanes. These ratatones may be used alone or in combination of two or more.
- the polyfunctional (meth) atalylate according to the present invention 3 is not particularly limited.
- the bifunctional (meth) atrelate described in the curable resin composition for column spacers of the present invention 1 is used.
- examples thereof include compounds, and compounds obtained by rataton-modified and oxide-modified trifunctional or higher functional (meth) ataretoy compounds.
- compounds obtained by subjecting a tri- or higher functional (meth) attale toy compound to a rataton-modified and oxide-modified compound are particularly preferred because they can improve the exposure sensitivity, which accelerates the polymerization reaction. is there.
- the polyfunctional (meth) acrylates according to the third invention may be used alone or in combination of two or more.
- the degree of modification of the polyfunctional (meth) atalylate modified with rataton according to the third aspect of the present invention is such that the number of functional groups in the base polyfunctional (meth) atalytoi compound is ⁇
- the preferred lower limit is 0.5 ⁇ mol, preferably 1 mol of a compound having two or more polymerizable unsaturated bonds.
- the upper limit is 5 nmol. When the amount is less than 5 nmol, the flexibility of the column spacer to be manufactured may be insufficient. When the amount exceeds 5 nmol, the reactivity at the time of exposure during the manufacture of the column spacer is reduced, and the column spacer is manufactured. It may be difficult to pattern the column spacer. More preferred, the lower limit is In mole, more preferred! /, And the upper limit is 3 nmol.
- the modification degree of the oxide modification of the polyfunctional (meth) acrylate when the number of functional groups of the base polyfunctional (meth) ate ralito toy compound is n,
- the preferred lower limit is 0.5 nmol and the preferred upper limit is 4 nmol per 1 mol of the polyfunctional (meth) attale toy compound. If the amount is less than 5 nmol, the resolution and solubility during development may be insufficient, and if it exceeds 5 nmol, the reactivity at the time of exposure when producing a column spacer will be reduced. The patterning of the column spacer to be manufactured may become difficult.
- a more preferable lower limit is In mole, and a more preferable upper limit is 3 nmol.
- a specific method for synthesizing the polyfunctional (meth) atelate according to the present invention 3 by subjecting the polyfunctional (meth) attareito toy compound to latatotone modification and oxide modification is not particularly limited.
- a method of reacting a polyhydric alcohol with latathone and oxide to synthesize a latatatone-modified and oxide-modified alcohol and then reacting the latatatone-modified and oxide-modified alcohol with (meth) acrylic acid examples include a method of reacting acrylic acid with rataton to synthesize rataton-modified (meth) acrylic acid, and then reacting it with an oxide-modified polyhydric alcohol obtained by reacting polyhydric alcohol with oxide. It is done.
- the content of the polymerizable compound according to the present invention 3 is not particularly limited, but the curing for the column spacer of the present invention 3 is not limited.
- the preferred lower limit is 20% by weight and the preferred upper limit is 90% by weight, based on the solid content of the water-soluble resin composition. If it is less than 20% by weight, the curable resin composition for a column spacer of the present invention 3 may not be sufficiently photocured and a column spacer pattern may not be formed by photolithography.
- the solubility in an alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 3 is insufficient, and the column spacer to be produced is not suitable. Pattern developability may be insufficient.
- a more preferred lower limit is 40% by weight, and a more preferred upper limit is 80% by weight.
- the curable resin composition for a column spacer of the present invention 3 is similar to the above-described curable resin composition for a column spacer of the present invention 1, and the polymerizable compound according to the above-mentioned present invention 3 is used.
- a polymerizable unsaturated bond-containing compound may be contained.
- the curable resin composition for a column spacer of the present invention 3 contains an alkali-soluble polymer compound.
- alkali-soluble polymer compound examples include those similar to the alkali-soluble polymer compound described in the above-described curable resin composition for column spacers of the first invention.
- the content of the alkali-soluble polymer compound is not particularly limited, but a preferred lower limit is 10% by weight, and a preferred upper limit is 80%. %. If it is less than 10% by weight, the solubility in an alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 3 will be insufficient, and the column The developability of the spacer pattern may be insufficient, and if it exceeds 80% by weight, the curable resin composition for column spacers of the present invention 1 is not fully photocured and can be obtained by photolithography. Column spacer pattern may not be formed. A more preferred lower limit is 20% by weight, and a more preferred upper limit is 60% by weight.
- the curable resin composition for column spacer 3 according to the present invention contains a photoreaction initiator.
- photoinitiator examples include the same photoinitiators as those described in the above-described curable resin composition for column spacers of the first invention.
- the content of the photoinitiator is not particularly limited, but a preferable lower limit is 1% by weight and a preferable upper limit is 20% by weight. is there. If it is less than 1% by weight, the curable resin composition for column spacers of the present invention 3 may not be photocured, and if it exceeds 20% by weight, it may not be possible to develop with all the power in photolithography. A more preferred lower limit is 5% by weight, and a more preferred upper limit is 15% by weight.
- the curable resin composition for a column spacer of the present invention 4 comprises a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- a curable resin composition for a column spacer, wherein the compound having two or more polymerizable unsaturated bonds in the molecule is composed of one or more hydroxyl groups and two or more polymerizable groups in the rataton-modified molecule.
- a curable resin composition for a column spacer which is a compound having a saturated bond.
- the compound having two or more polymerizable unsaturated bonds in the molecule contains one or more hydroxyl groups in the rataton-modified molecule and 2 It is a compound having the above polymerizable unsaturated bond.
- the column space of the present invention 4 containing a compound having one or more hydroxyl groups and two or more polymerizable unsaturated bonds (hereinafter also referred to as a polymerizable compound according to the present invention 4) in the molecule modified with such rataton.
- the curable rosin resin composition can simultaneously suppress “gravity failure” due to liquid crystal expansion during heating and “cold foaming” due to liquid crystal shrinkage at low temperatures.
- the polymerizable compound according to the fourth aspect of the present invention is not particularly limited.
- a polyfunctional (meth) ataretoy compound having one or more hydroxyl groups in a rataton-modified molecule In the following, it is preferred that the polyfunctional (meth) acrylate is also a).
- the polyfunctional (meth) acrylate according to the fourth invention is not particularly limited.
- the ata relay toy compound is modified with rataton.
- Compounds, and the like are not suitable for the polymerization reaction. This is particularly suitable because it is easy to improve the exposure sensitivity that speeds up the line.
- polyfunctional (meth) acrylates according to the present invention 4 may be used alone or in combination of two or more.
- the degree of modification of the polyfunctional (meth) atalylate modified with rataton according to the present invention 4 is such that when n is the number of functional groups of the polyfunctional (meth) ataretoy compound as a base,
- the preferred lower limit is 0.5 nmol
- the preferred upper limit is 5 nmol, per mole of the compound having 2 or more polymerizable unsaturated bonds. If the amount is less than 5 nmol, the flexibility of the column spacer to be produced may be insufficient, and if it exceeds 5 nmol, the reactivity during exposure during the production of the column spacer will decrease. It may be difficult to pattern the column spacers to be manufactured.
- a more preferable lower limit is In mole, and a more preferable upper limit is 3 nmol.
- Such a polymerizable compound according to the fourth aspect of the present invention for example, reacts a trivalent or higher alcohol with ratatone to synthesize a rataton-modified alcohol, and then adds a hydroxyl group to the rataton-modified alcohol.
- a method for introducing a hydroxyl group by reacting a compound having a hydroxyl group and a primary or secondary amino group at a ratio that leaves two or more polymerizable unsaturated bonds after obtaining a compound having Etc. can be obtained more suitably.
- the compound having three or more polymerizable unsaturated bonds in the rataton-modified molecule is not particularly limited, and examples thereof include pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate and the like. Rataton-modified compounds and the like can be mentioned.
- the compound having a hydroxyl group and a primary or secondary amino group is a compound according to the second aspect of the present invention. The thing similar to what was demonstrated in the compatibility compound is mentioned.
- the polymerizable compound according to the fourth aspect of the present invention is prepared by reacting a compound having a hydroxyl group and a primary or secondary amino group with the compound having 3 or more polymerizable unsaturated bonds in the rataton-modified molecule.
- a compound having a hydroxyl group and a primary or secondary amino group in an unsaturated double bond of a compound having three or more polymerizable unsaturated bonds in the molecule modified by the rataton by a so-called Michael addition reaction.
- the amino group of the compound is added.
- the amount of hydroxyl groups in the polymerizable compound according to the fourth invention is not particularly limited, but a preferred lower limit is 5 mg KOHZg, and a preferred upper limit is 200 mg KOHZg. If it is less than 5 mgKOHZg, sufficient effects may not be obtained for the developability of the curable resin composition for column spacers of the present invention 4, and if it exceeds 200 mgKOHZg, problems such as gelation may occur. It becomes easy.
- a more preferred lower limit is 10 mg KOHZg, and a more preferred upper limit is 50 mg KOHZ g.
- the content of the polymerizable compound according to the present invention 4 is not particularly limited, but the curing for the column spacer of the present invention 4 is not limited.
- the preferred lower limit is 20% by weight and the preferred upper limit is 90% by weight, based on the solid content of the water-soluble resin composition. If it is less than 20% by weight, the curable resin composition for a column spacer of the present invention 4 may not be sufficiently photocured and a column spacer pattern may not be formed by photolithography.
- the solubility in an alkaline developer used when producing a column spacer using the curable resin composition for a column spacer of the present invention 4 is insufficient, and the column spacer to be produced is not suitable. Pattern developability may be insufficient.
- a more preferred lower limit is 40% by weight, and a more preferred upper limit is 80% by weight.
- the curable resin composition for a column spacer of the present invention 4 is similar to the curable resin composition for a column spacer of the present invention 1 described above, and the polymerizable compound according to the above-described present invention 4.
- a polymerizable unsaturated bond-containing compound may be contained.
- the curable resin composition for a column spacer of the present invention 4 comprises an alkali-soluble polymer compound. contains.
- alkali-soluble polymer compound examples include those similar to the alkali-soluble polymer compound described in the above-described curable resin composition for column spacers of the first invention.
- the content of the alkali-soluble polymer compound is not particularly limited, but a preferred lower limit is 10% by weight, and a preferred upper limit is 80%. %. If it is less than 10% by weight, the solubility in an alkaline developer used when producing a column spacer using the curable resin composition for a column spacer of the present invention 4 is insufficient, and the column The developability of the spacer pattern may be insufficient, and if it exceeds 80% by weight, the curable resin composition for column spacers of the present invention 1 is not fully photocured and can be obtained by photolithography. Column spacer pattern may not be formed. A more preferred lower limit is 20% by weight, and a more preferred upper limit is 60% by weight.
- the curable resin composition for a column spacer 4 according to the present invention contains a photoreaction initiator.
- photoinitiator examples include the same photoinitiators as those described in the above-described curable resin composition for column spacers of the first invention.
- the content of the photoinitiator is not particularly limited, but a preferable lower limit is 1% by weight and a preferable upper limit is 20% by weight. is there. If it is less than 1% by weight, the curable resin composition for a column spacer of the present invention 4 may not be photocured, and if it exceeds 20% by weight, it may not be possible to develop with a single force in photolithography. A more preferred lower limit is 5% by weight, and a more preferred upper limit is 15% by weight.
- the curable resin composition for a column spacer of the present invention 5 contains a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator.
- a curable resin composition for a column spacer, wherein the compound having two or more polymerizable unsaturated bonds in the molecule is composed of one or more hydroxyl groups and two or more hydroxyl groups in the molecule modified with rataton and oxide.
- Hardness for column spacers which is a compound having a polymerizable unsaturated bond It is a habitable rosin composition.
- the compound having two or more polymerizable unsaturated bonds in the molecule includes one or more in the molecule modified with rataton and oxide. It is a compound having a hydroxyl group and two or more polymerizable unsaturated bonds.
- the present invention 5 containing a compound having one or more hydroxyl groups and two or more polymerizable unsaturated bonds (hereinafter also referred to as a polymerizable compound according to the present invention 5) in such a rataton-modified and oxide-modified molecule.
- this curable resin composition for column spacers has a “gravity failure” due to liquid crystal expansion during heating and a “low temperature foaming” due to liquid crystal shrinkage at low temperatures.
- the polymerizable compound according to the fifth aspect of the present invention is not particularly limited.
- one or more hydroxyl groups and two or more polymerizable unsaturated bonds are present in the molecule modified with rataton and oxide. It is preferable that it is a polyfunctional (meth) atalytoy compound having the same (hereinafter, also referred to as polyfunctional (meth) atalylate according to the present invention 5).
- the polyfunctional (meth) acrylate according to the fifth aspect of the present invention is not particularly limited, and examples thereof include trimethylol propane di (meth) acrylate, trimethylol ethane di (meth) acrylate, pentaerythritol di ( Penta-modified and oxide-modified compounds of bifunctional (meth) attareito toy compounds such as (meth) acrylate, ditrimethylolpropane di (meth) acrylate, dipentaerythritol di (meth) acrylate, etc .; penta 3 such as erythritol tri (meth) acrylate, pentaerythritol tri (meth) acrylate, ditrimethylolpropane tri (meth) acrylate, dipentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate More than sensuality (meta
- polyfunctional (meth) acrylates according to the present invention 5 may be used alone or in combination of two or more.
- the degree of modification of the polyfunctional (meth) atalylate according to the fifth aspect of the present invention in the modification of the latatones is defined as follows.
- the preferred lower limit is 0.5 nmol
- the preferred upper limit is 5 nmol, per mole of the compound having 2 or more polymerizable unsaturated bonds. If the amount is less than 5 nmol, the flexibility of the column spacer to be produced may be insufficient, and if it exceeds 5 nmol, the reactivity during exposure during the production of the column spacer will decrease. It may be difficult to pattern the column spacers to be manufactured.
- a more preferable lower limit is In mole, and a more preferable upper limit is 3 nmol.
- a preferable lower limit is 0.5 nmol and a preferable upper limit is 4 nmol per 1 mol of the polyfunctional (meth) attalei toy compound. If the amount is less than 5 nmol, the resolution and solubility during development may be insufficient, and if it exceeds 5 nmol, the reactivity at the time of exposure when producing a column spacer will be reduced. The patterning of the column spacer to be manufactured may become difficult.
- a more preferable lower limit is In mole, and a more preferable upper limit is 3 nmol.
- Such a polymerizable compound according to the present invention 5 is obtained by, for example, reacting a trivalent or higher alcohol with lactone and oxide to synthesize a rataton-modified and oxide-modified alcohol.
- a method in which (meth) acrylic acid is esterified with a ratio such that two or more polymerizable unsaturated bonds are formed while remaining hydroxyl groups with respect to rataton-modified and oxide-modified alcohols; After synthesizing Rataton-modified (meth) acrylic acid, the hydroxyl-modified alcohol obtained by reacting trivalent or higher-valent alcohol with oxide and Rataton-modified (meth) acrylic acid A method in which esterification reaction is performed at a ratio so as to produce two or more polymerizable unsaturated bonds while remaining; trivalent or higher alcohol and rataton Then, latatotone-modified and oxide-modified alcohols are synthesized by reacting them with oxides, and then the latatatone-modified and oxide-modified alcohol
- a compound having a hydroxyl group and a primary or secondary amino group is reacted with a compound having 3 or more polymerizable unsaturated bonds in the molecule obtained by esterification of thiol and rataton-modified (meth) acrylic acid.
- Etc. can be suitably obtained.
- the compound having three or more polymerizable unsaturated bonds in the above-described rataton-modified or oxide-modified molecule is not particularly limited, and examples thereof include pentaerythritol tetra (meth) atalylate, dipentaerythritol hexa ) Compound obtained by modifying attalatate and the like by rataton modification and oxide modification.
- Examples of the compound having a hydroxyl group and a primary or secondary amino group are the same as those described in the above-described polymer compound according to the present invention 2.
- the compound having a hydroxyl group and a primary or secondary amino group is allowed to react with the compound having three or more polymerizable unsaturated bonds in the molecule modified with rataton and oxide, and the polymerizable compound according to the present invention 5 is reacted.
- the hydroxyl group and the primary or primary group are bonded to the unsaturated double bond of the compound having three or more polymerizable unsaturated bonds in the molecule modified with the rataton and oxide by the so-called Michael addition reaction.
- the amino group of the compound having a secondary amino group is added.
- the amount of hydroxyl groups in the polymerizable compound according to the present invention 5 is not particularly limited, but a preferred lower limit is 5 mg KOHZg, and a preferred upper limit is 200 mg KOHZg. If it is less than 5 mg KOHZg, the effect of developing the curable resin composition for column spacers of the present invention 5 may not be obtained.If it exceeds 200 mg KOHZg, problems such as gelation may occur. It becomes easy. A more preferred lower limit is 10 mg KOHZg, and a more preferred upper limit is 50 mg KOHZ g.
- the content of the polymerizable compound according to the present invention 5 is not particularly limited, but the curing for the column spacer of the present invention 5 is not limited.
- the preferred lower limit is 20% by weight and the preferred upper limit is 90% by weight, based on the solid content of the water-soluble resin composition. If it is less than 20% by weight, the curable resin composition for a column spacer of the present invention 5 is not sufficiently photocured and the pattern of the column spacer is formed by photolithography. If it exceeds 90% by weight, the solubility in an alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 5 may be increased. May be insufficient, and the developability of the pattern of the column spacer to be manufactured may be insufficient.
- a more preferred lower limit is 40% by weight, and a more preferred upper limit is 80% by weight.
- the curable resin composition for a column spacer of the present invention 5 is similar to the curable resin composition for a column spacer of the present invention 1 described above, and the polymerizable compound according to the above-mentioned present invention 5.
- a polymerizable unsaturated bond-containing compound may be contained.
- the curable resin composition for column spacers of the present invention 5 contains an alkali-soluble polymer compound.
- alkali-soluble polymer compound examples include those similar to the alkali-soluble polymer compound described in the above-described curable resin composition for column spacers of the first invention.
- the content of the alkali-soluble polymer compound is not particularly limited, but a preferred lower limit is 10% by weight, and a preferred upper limit is 80%. %. If it is less than 10% by weight, the solubility in an alkaline developer used when producing a column spacer using the curable resin composition for a column spacer of the present invention 5 is insufficient, and the column The developability of the spacer pattern may be insufficient, and if it exceeds 80% by weight, the curable resin composition for column spacers of the present invention 1 is not fully photocured and can be obtained by photolithography. Column spacer pattern may not be formed. A more preferred lower limit is 20% by weight, and a more preferred upper limit is 60% by weight.
- the curable resin composition for a column spacer of the present invention 5 contains a photoreaction initiator.
- the photoreaction initiator the curable resin for a column spacer of the present invention 1 described above. The thing similar to the photoinitiator demonstrated by the composition is mentioned.
- the content of the photoinitiator is not particularly limited, but a preferable lower limit is 1% by weight and a preferable upper limit is 20%. %. If it is less than 1% by weight, the curable resin composition for column spacers of the present invention 5 may not be photocured, and if it exceeds 20% by weight, it may not be possible to develop it by photolithography. A more preferred lower limit is 5% by weight, and a more preferred upper limit is 15% by weight.
- the curable resin composition for a column spacer of the present invention 6 contains a compound having two or more polymerizable unsaturated bonds in the molecule, an alkali-soluble polymer compound, and a photoreaction initiator. To do.
- the compound having two or more polymerizable unsaturated bonds in the molecule has one or more carboxyl groups and two or more polymerizable unsaturated bonds in the molecule (hereinafter, Also referred to as a polymerizable compound according to the present invention 6).
- the polymerizable compound according to the sixth aspect of the present invention is not particularly limited.
- the polymerizable compound has a carboxyl group in a part of the (meth) acryl group of the (meth) acrylate compound having three or more functions.
- the compound is a (meth) attareito toy compound (hereinafter, also referred to as a polyfunctional (meth) atalyte toy compound having a carboxyl group) into which a carboxylic acid has been introduced by addition reaction of the compound.
- the curable resin composition for a column spacer of the present invention 6 has an exposure sensitivity at the time of pattern formation by a photolithographic method. It is excellent in rapid polymerization reactivity necessary for obtaining and affinity with an alkaline developer necessary for obtaining resolution at the time of image formation.
- the amount of carboxyl group modification to the compound having one or more carboxyl groups and two or more polymerizable unsaturated bonds in the molecule is not particularly limited as long as it can be quickly dissolved in an alkali developer.
- the preferred lower limit of the value is 5 mg KOHZg
- the preferred upper limit is 80 mg KOHZg
- the more preferred lower limit is 10 mgKOHZg
- the more preferred upper limit is 50 mgKO HZg.
- the trifunctional or higher functional (meth) attareito toy compound is not particularly limited, and examples thereof include trimethylolpropane tri (meth) acrylate, trimethylol ethane tri (meth) acrylate, and pentaerythritol. Tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, di
- pentaerythritol tri (meth) acrylate, ditrimethylolpropane tri (meth) acrylate, dipentaerythritol tri (meth) acrylate, dipentaerythritol tetra (meth) acrylate, or dipentaerythritol penta (meth) Atallate is preferably used.
- Tri- or higher functional urethane (meth) acrylate, epoxy (meth) acrylate, and polyester (meth) acrylate are also suitable.
- urethane (meth) acrylate and epoxy (meth) acrylate include, for example, UA-306H, UA-306T, UA-3061 (above, manufactured by Kyoeisha Co., Ltd .;), ⁇ 9260, EB8210, EB1290.
- the curable resin composition for a column spacer of the present invention 6 when the polymerizable compound according to the present invention 6 is a (meth) attareito toy compound having the carboxyl group,
- the preferred lower limit of the number of (meth) acrylic groups in the molecule is 3 because it is easy to improve the exposure sensitivity where the polymerization reaction proceeds rapidly.
- the preferable upper limit of the carboxyl group in the molecule is 2. If it is 3 or more, the solubility in the developer's swelling property becomes high. For example, when the curable resin composition of the present invention is used for a column spacer application, it is caused by peeling of the development pattern or swelling property. A reduction in resolution is likely to occur.
- the compound having a carboxyl group is not particularly limited, and examples thereof include compounds having a carboxyl group and a thiol group, such as thiosalicylic acid, mercaptoacetic acid, mercaptosuccinic acid, and 3-mercaptopropionic acid.
- the method for obtaining the above-mentioned polyfunctional (meth) ataretoy compound having a carboxyl group is not particularly limited. ) A compound having a thiol group such as thiosalicylic acid and a carboxyl group in the talyl group And a method of adding by a thiol reaction.
- the polymerizable compound according to the above-mentioned present invention 6 has a carboxyl group modified with rataton and Z or oxide. It is preferred that it is a sensuality (meta) ata relay toy compound.
- the cured product obtained by curing the curable resin composition for a column spacer of the present invention 6 has excellent flexibility, and the curable resin composition for a column spacer of the present invention 6 is used for a column spacer. This is because when used, a column spacer having excellent flexibility and high compression recovery characteristics can be suitably obtained.
- the above-mentioned polymerizable compound according to the present invention 6 is a polyfunctional (meth) acrylate compound having a latatotone-modified carboxyl group.
- the polyfunctional (meth) atreatoy compound is not particularly limited, and examples thereof include the above-described trifunctional or higher functional (meth) atrelate toy compound.
- the strength of prolatataton modified pentaerythritol tri (meth) acrylate, ditrimethylolpropanthrate (meth) acrylate, dipentaerythritol tri (meth) acrylate, dipentaerythritol tetra (meth) acrylate, or dipentaerythritol A compound obtained by adding a compound having a carboxyl group to penta (meth) atrelate is preferably used.
- the degree of modification of the above-described polyfunctional (meth) atalylate modified with latatatone is the molecular weight when n is the number of functional groups of the polyfunctional (meth) ataretoy compound as a base.
- the preferred lower limit is 0.5 nmol and the preferred upper limit is 5 nmol per 1 mol of the compound having two or more polymerizable unsaturated bonds. If the amount is less than 5 nmol, the flexibility of the column spacer to be manufactured may be insufficient. If the amount exceeds 5 nmol, the reactivity at the time of exposure during the production of the column spacer will decrease, and the production will be It may be difficult to pattern the column spacer.
- a more preferable lower limit is In mole, and a more preferable upper limit is 3 nmol.
- the specific method for modifying the polyfunctional (meth) attareito toy compound with rataton is not particularly limited.
- a polyhydric alcohol with rataton to synthesize the rataton-modified alcohol.
- a method of reacting (meth) acrylic acid with ester ester; a method of reacting (meth) acrylic acid with lactone to synthesize rataton-modified (meth) acrylic acid and then reacting alcohol with ester ester; (meth) Acrylic acid, force prolatatone, and polyhydric alcohol The method of making it respond is mentioned.
- oxide-modified pentaerythritol tri (meth) acrylate, ditrimethylolpropane tri (meth) acrylate, dipentaerythritol tri (meth) acrylate, dipentaerythritol tetra (meth) acrylate, or dipentaerythritol penta A compound obtained by adding a compound having a carboxyl group to (meth) acrylate is preferably used.
- the above-mentioned degree of modification of the polyfunctional (meth) atalylate oxide modification is as follows.
- the polyfunctional (meth) atariate is modified.
- a preferred lower limit is 0.5 nmol and a preferred upper limit is 15 ⁇ mol with respect to 1 mole of the rate-i compound. If it is less than 0.5 ⁇ mol, the flexibility of the column spacer to be produced may be insufficient, and if it exceeds 15 ⁇ mol, the affinity for an alkali developer will be high and the resolution will deteriorate due to swelling. Is more likely to occur.
- a more preferred lower limit is 3 ⁇ mol, and a more preferred upper limit is 10 ⁇ mol.
- the specific method for the oxide modification of the polyfunctional (meth) attareito toy compound is not particularly limited.
- a polyhydric alcohol and an oxide are reacted to synthesize an oxide-modified alcohol.
- the method of esterifying this oxide-modified alcohol with (meth) acrylic acid reacting (meth) acrylic acid with oxide to synthesize oxide-modified (meth) acrylic acid, and then esterifying with alcohol
- a method of reacting (meth) acrylic acid, oxide and polyhydric alcohol at once is not particularly limited.
- a polyhydric alcohol and an oxide are reacted to synthesize an oxide-modified alcohol.
- the method of esterifying this oxide-modified alcohol with (meth) acrylic acid reacting (meth) acrylic acid with oxide to synthesize oxide-modified (meth) acrylic acid, and then esterifying with alcohol
- a method of reacting (meth) acrylic acid, oxide and polyhydric alcohol at once is not particularly limited.
- the above-mentioned polymerizable compound according to the sixth invention may further have one or more hydroxyl groups in the molecule.
- the curable resin composition for a column spacer of the present invention 6 containing the polymerizable compound according to the present invention 6 exhibits the developability and solubility during pattern formation when used in a force ram spacer application. This can be further improved, the occurrence of development residue can be further suppressed, and sharp resolution can be obtained.
- Such a polymerizable compound according to the present invention having a hydroxyl group in the molecule is, for example, (T)
- (T) When producing an acrylate compound, it can be obtained by adjusting the blending ratio and Z or reaction ratio of (meth) acrylic acid to be reacted with a polyhydric alcohol.
- the polymerizable compound according to the present invention 6 having a hydroxyl group in the molecule has two carboxyl groups in the compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule.
- the carboxylic acid compound having the above and Z or an acid anhydride may be subjected to an addition reaction.
- the compound having two or more polymerizable unsaturated bonds in the molecule and a hydroxyl group is not particularly limited, and examples thereof include pentaerythritol tri (meth) acrylate, ditrimethylol propane tri (meth) acrylate, dipentaerythritol tri. (Meth) acrylate, dipentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, and these latatotone-modified and Z- or oxide-modified products.
- the method for obtaining such a compound having two or more polymerizable unsaturated bonds in the molecule and a hydroxyl group is not particularly limited.
- a (meth) attareito toy compound (or (meth) acrylate) A compound obtained by reacting an oxide with a compound) and a polyhydric alcohol; a compound having 3 or more polymerizable unsaturated bonds in the molecule, or a rataton-modified or Z- or oxide-modified product thereof.
- Examples include a method of reacting a compound having a hydroxyl group and a primary or secondary amino group; a method of reacting an oxide-modified polyhydric alcohol and a (meth) acrylate compound.
- the compound having three or more polymerizable unsaturated bonds in the molecule is not particularly limited, and examples thereof include pentaerythritol tetra (meth) acrylate and dipentaerythritol hex (meth) acrylate. It is done.
- the compound having the hydroxyl group and the primary or secondary amino group is not particularly limited, and examples thereof include monoethanolamine, n -propanolamine, isopropanolamine, jetanolamine, diisopropanolamine and the like. Is mentioned.
- the solvent for diluting the compound having a hydroxyl group and a primary or secondary amino group is not particularly limited, and for example, it does not react with the compound having the hydroxyl group and a primary or secondary amino group.
- a compound having compatibility with a compound having 3 or more polymerizable unsaturated bonds in the molecule and a compound having a hydroxyl group and a primary or secondary amino group is appropriately selected.
- it is a water-soluble solvent having a boiling point of 64 to 200 ° C.
- the concentration of the compound having the hydroxyl group and the primary or secondary amino group in the solvent when dropped into the compound having 3 or more polymerizable unsaturated bonds in the molecule is not particularly limited.
- the preferred lower limit is 5% by weight
- the preferred upper limit is 30% by weight
- the more preferred lower limit is 10% by weight
- the more preferred upper limit is 20% by weight.
- the catalyst is not particularly limited, and examples thereof include alkali metal alcoholates, organometallic compounds such as tin titanium, metal hydroxides, tertiary amines, and the like.
- reaction time of the above Michael addition reaction is not particularly limited, but the preferred lower limit is 1 hour, the preferred upper limit is about 10 hours, and the more preferred lower limit is 3 hours, more preferred.
- LV, upper limit is about 7 hours.
- reaction solvent used in the Michael addition reaction include the same reaction solvents as those described in the above-described curable resin composition for column spacers of the present invention 2.
- a polymerization inhibitor in the Michael addition reaction.
- the curable resin composition for a column spacer of the present invention 2 described above may be used. Examples of the polymerization inhibitor described in the above are the same.
- Examples of the carboxylic acid compound having two or more carboxyl groups include oxalic acid and maleic acid.
- tricarboxylic acid compounds such as dicarboxylic acid compounds and trimellitic acid.
- a dicarboxylic acid compound is used.
- the acid anhydride is not particularly limited, and for example, oxalic anhydride, maleic anhydride, succinic anhydride, tartaric anhydride, itaconic anhydride, phthalic anhydride, tetrahydrophthalic anhydride, methyltetrahydro Phthalic anhydride, Ethyltetrahydrophthalic anhydride, Hexahydrate Oral phthalic anhydride, Methylhexahydrophthalic anhydride, Ethylhexahydrophthalic anhydride, Chlorendic anhydride, Trimellitic anhydride, Pyromellitic anhydride, Benzophenone tetra Examples thereof include carboxylic acid anhydrides such as carboxylic acid anhydrides and biphenyltetracarboxylic acid anhydrides.
- the reaction in which the carboxylic acid compound having two or more carboxyl groups is added to the hydroxyl group of a compound having two or more polymerizable unsaturated bonds and hydroxyl groups in the molecule is usually performed.
- the dehydration esterification reaction of a method is mentioned.
- a compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule a carboxylic acid compound having two or more carboxyl groups, and a solvent And heated in the presence of an acidic catalyst.
- the reaction solution is washed with water, the aqueous layer is separated, and then the solvent is distilled off under reduced pressure.
- a carboxylic acid compound that facilitates distilling water and having two or more carboxyl groups, and a compound having two or more polymerizable unsaturated bonds and hydroxyl groups in the molecule is not particularly limited as long as it does not react with an acidic catalyst, but it forms an azeotrope with water to be produced n n-hexane, n-heptane and other aliphatic hydrocarbons, benzene, toluene, xylene and other aromatics Alicyclic hydrocarbons such as aromatic hydrocarbons and cyclohexane are preferred.
- an inorganic catalyst may be used as an acidic catalyst in an esterification reaction between a carboxylic acid compound having two or more carboxyl groups and a compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule.
- the inorganic acid that can be either acid or organic acid include hydrochloric acid, sulfuric acid, phosphoric acid, and the like.
- the organic acid include p-toluenesulfonic acid, benzenesulfonic acid, and methanesulfonic acid. Of these, organic sulfonic acids such as p-toluenesulfonic acid are particularly preferred because of their low corrosivity.
- a preferable lower limit is 0.5% by weight and a preferable upper limit is 5% by weight with respect to the total amount of the reaction solution.
- a compound having a carboxylic acid compound having two or more carboxyl groups, two or more polymerizable unsaturated bonds in the molecule, and two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule As for the reaction temperature of the esterification reaction with A, a preferred lower limit is 70 ° C and a preferred upper limit is 150 ° C. By heating at a temperature within this range, the dehydration esterification reaction can be carried out easily. A more preferred lower limit is 80 ° C, and a more preferred upper limit is 120 ° C.
- a polymerization inhibitor is added. It is preferable to carry out the reaction.
- the polymerization inhibitor include hydroquinone, hydroquinone monomethyl ether, phenothiazine, p-benzoquinone, 2,5-dihydroxy-p-benzoquinone, 4-t-butylcatechol, copper salt and the like.
- the preferred lower limit is generally 0.01% by weight and the preferred upper limit is 1% by weight with respect to the total amount of the reaction solution.
- the reaction of adding the acid anhydride to the hydroxyl group of a compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule is a general esterification reaction, and the preferred lower limit of the reaction temperature is The upper limit is 60 ° C and the preferred upper limit is 150 ° C. The preferred lower limit of the reaction time is 1 hour, and the preferred upper limit is 12 hours.
- a tertiary amine such as triethylamine or triethylbenzylammon- Quaternary ammonium salts such as um chloride, 2-ethyl 4-methyl imidazole compounds, phosphorus compounds such as triphenylphosphine, etc. may be used.
- polymerization inhibitors for example, conventionally known ones such as quinone derivatives such as rho, idroquinone, methylhydroquinone, p-benzoquinone, phenol derivatives such as 2,6-di-tert-butyl-p-talesol, etc. It may be added.
- the reaction of adding the acid anhydride to the hydroxyl group of a compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule may be performed without a solvent, but if necessary, It may be carried out in a solvent.
- the solvent that can be used for the reaction is not particularly limited as long as it does not inhibit the reaction.
- ketones such as methylethyl ketone and cyclohexanone
- aromatic carbonization such as toluene, xylene, and tetramethylbenzene.
- Cellosolves such as cellosolve, methylcetosolve, and butylcetosolve
- Carbitols such as carbitol, methylcarbitol, and butylcarbitol
- Glycol ethers such as diethylene glycol dimethyl ether and polyethylene glycol jetyl ether
- Acetic esters such as over preparative; octane, aliphatic hydrocarbons decane; petroleum ether, petroleum naphtha, hydrogenated petroleum naphtha, and petroleum solvents such as Solvent Ntonafusa.
- the polymerizable compound of the present invention 6 has two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule, and a carboxyl group is added to the compound that is modified with rataton and Z or oxide.
- a carboxylic acid compound having 2 or more and Z or an acid anhydride is preferably subjected to an addition reaction.
- the compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule and modified with rataton and Z or oxide is not particularly limited.
- pentaerythritol tri (meth) atariate Rate ditrimethylolpropane tri (meth) acrylate
- dipentaerythritol tri (meth) acrylate dipentaerythritol tetra (meth) acrylate
- dipenta Rataton-modified such as erythritol penta (meth) acrylate and z- or oxide-modified products.
- Examples of a method for synthesizing a compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule and modified with ratatone and modified with Z or oxide include, for example, polyhydric alcohol and rataton. And then synthesizing a rataton-modified polyhydric alcohol, and then reacting this rataton-modified polyhydric alcohol with (meth) acrylic acid (1); reacting (meth) acrylic acid with rataton, Rataton-modified (meth) acrylic acid is synthesized, then this latataton-modified (meth) acrylic acid and alcohol are reacted with ester (2); (meth) acrylic acid, rataton and polyhydric alcohol are reacted together (3).
- stannous chloride, stannous octoate, dibutyltin dilaurate, or the like is preferably used as the acidic catalyst used when synthesizing the latataton-modified polyhydric alcohol.
- the amount used is preferably a lower limit of 0.005% by weight and a preferred upper limit of 0.5% by weight with respect to the total amount of the reaction solution.
- the preferable lower limit of the reaction temperature is 80 ° C
- the preferable upper limit is 200 ° C
- the preferable lower limit of the reaction time is 1 hour
- the preferable upper limit is 20 hours.
- the polyhydric alcohol is not particularly limited. For example, pentaerythritol, dipentaerythritol, tripentaerythritol, tetrapentaerythritol, trimethylolethane, ditrimethylolethane, trimethylolpropane, and ditrimethylolpropanity. At least one trihydric or higher polyhydric alcohol compound selected from the group is preferably used.
- the above-mentioned rataton is not particularly limited, and examples thereof include ⁇ -one-force prolatatanes, ⁇ -one-force prolactons, and ⁇ -force prolatatones, and among them, ⁇ -force prolatatones are preferred.
- a method of reacting the above-described ratatone-modified polyhydric alcohol with (meth) acrylic acid examples thereof include a conventional dehydration esterification reaction.
- a rataton-modified polyhydric alcohol, (meth) acrylic acid and a solvent are charged into a reactor equipped with a stirrer, a thermometer and a water separator, and heated in the presence of an acidic catalyst.
- the reaction solution is washed with water, the aqueous layer is separated, and then the solvent is distilled off under reduced pressure.
- the solvent in the esterification reaction is not particularly limited as long as it does not react with the rataton-modified polyhydric alcohol, (meth) acrylic acid, and acidic catalyst as long as it facilitates the outflow of water.
- Preferred are aliphatic hydrocarbons such as n-xane and n-heptane, which form an azeotrope with water, aromatic hydrocarbons such as benzene, toluene and xylene, and alicyclic hydrocarbons such as cyclohexane.
- the acidic catalyst that can be either an inorganic acid or an organic acid include hydrochloric acid, sulfuric acid, and phosphoric acid.
- Specific examples of the organic acid include p-toluenesulfonic acid, benzenesulfonic acid and methanesulfonic acid. Of these, organic sulfonic acids such as p-toluenesulfonic acid are particularly preferred because of their low corrosivity.
- the amount of the acidic catalyst added is preferably 0.5% by weight and preferably 5% by weight with respect to the total amount of the reaction solution.
- the reaction temperature of the esterification reaction is preferably 70 ° C, and the upper limit is preferably 150 ° C. By heating at a temperature within this range, the dehydrating ester reaction can be easily performed.
- a more preferred lower limit is 80 ° C, and a more preferred upper limit is 120 ° C.
- a polymerization inhibitor has already been added to the (meth) acrylic acid.
- a polymerization inhibitor includes hydroquinone, hydroquinone monomethyl ether, phenothiazine, p-benzozoquinone, 2,5-dihydroxy p-benzoquinone, 4 t-butyl catechol, copper salt and the like.
- the preferred lower limit is usually 0.01% by weight and the preferred upper limit is 1% by weight with respect to the total amount of the reaction solution.
- the method of reacting (meth) acrylic acid with ratatone to synthesize the rataton-modified (meth) acrylic acid includes, for example, a stirrer, a temperature, and the like.
- Total and reflux cooling A reactor equipped with a reactor is charged with (meth) acrylic acid and rataton, and heated in the presence of an acidic catalyst. After completion of the reaction, there may be mentioned a method in which the reaction solution is neutralized, adsorbed or the like to remove the catalyst, and if necessary, operations such as washing with water and distillation are performed.
- the acidic catalyst used when synthesizing the above-described rataton-modified (meth) acrylic acid may be either an inorganic acid or an organic acid.
- the acidic catalyst in the esterification reaction of the method (1) described above As for the amount added, the preferred lower limit is 0.5% by weight, the preferred upper limit is 5% by weight, and the more preferred lower limit is 0.8% by weight, based on the total amount of the reaction solution. A more preferred upper limit is 3% by weight.
- the reaction temperature for synthesizing the above-described rataton-modified (meth) acrylic acid is preferably 60 ° C and preferably 120 ° C from the viewpoint of shortening the reaction time and preventing polymerization. More preferred, lower limit is 70 ° C, more preferred! /, Upper limit is 100 ° C.
- solvent in order to facilitate temperature control during the reaction.
- Solvents that can be used are not particularly limited as long as they do not react with (meth) acrylic acid, ratatones, and acidic catalysts.
- Aromatic hydrocarbons such as benzene, toluene, and xylene are preferred.
- a polymerization inhibitor is usually added to the (meth) acrylic acid.
- a polymerization inhibitor is added again when synthesizing the latatatone-modified (meth) acrylic acid. It is preferable to carry out the reaction.
- the polymerization inhibitor include those similar to the polymerization inhibitor in the esterification reaction of the method (1) described above, and the addition amount thereof is usually a preferable lower limit with respect to the total amount of the reaction solution. Is 0.01% by weight, and the preferred upper limit is 1% by weight.
- examples of the method of reacting the latatatone-modified (meth) acrylic acid and alcohol with an esterification reaction include a conventional dehydration esterification reaction.
- a rataton-modified (meth) acrylic acid, a polyhydric alcohol and a solvent are charged into a reactor equipped with a stirrer, a thermometer and a water separator, and heated in the presence of an acidic catalyst.
- the reaction solution is washed with water, the aqueous layer is separated, and then the solvent is distilled off under reduced pressure.
- the hydroxyl group in the (meth) acrylate molecule in the esterification reaction of the above method (2) is polyvalent. It can be obtained by adjusting the molar ratio and reaction rate of the rataton-modified (meth) acrylic acid to alcohol.
- the preferred lower limit is 0.6, and the preferred upper limit is 1.2 as the molar ratio of the latathone-modifying (meth) acrylic acid to the polyhydric alcohol.
- a more preferred lower limit is 0.7, and a more preferred upper limit is 1.0.
- the solvent in the esterification reaction of the above method (2) it is easy to distill water, and it does not react with lactone-modified (meth) acrylic acid, polyhydric alcohol and acidic catalyst.
- lactone-modified (meth) acrylic acid polyhydric alcohol and acidic catalyst.
- aromatic hydrocarbons such as benzene, toluene, and xylene that form an azeotrope with the generated water are preferred.
- An organic sulfonic acid such as p-toluenesulfonic acid is suitable as the acidic catalyst in the esterification reaction of the above method (2).
- the preferable lower limit is 0.5% by weight and the preferable upper limit is 5% by weight with respect to the total amount after the reaction.
- a preferable lower limit is 70 ° C, and a preferable upper limit is 150 ° C. By heating at a temperature within this range, the dehydration ester reaction can be carried out easily.
- a more preferred lower limit is 80 ° C, and a more preferred upper limit is 120 ° C.
- the esterification reaction of the above method (2) it is preferable to add a polymerization inhibitor.
- the polymerization inhibitor include the same as the polymerization inhibitor in the esterification reaction of the above method (1).
- the preferred lower limit is 0.01% by weight and the preferred upper limit is 1% by weight based on the total amount of the reaction solution.
- examples of the method of collectively reacting (meth) acrylic acid, latathone and polyhydric alcohol include a conventional dehydration esterification reaction.
- (meth) acrylic acid, rataton, polyhydric alcohol and a solvent are charged into a reactor equipped with a stirrer, a thermometer and a water separator, and heated in the presence of an acidic catalyst.
- the end point of the reaction is determined by the amount of by-product water.
- a method of washing the reaction solution with water, separating the aqueous layer, and distilling off the solvent under reduced pressure can be mentioned.
- the acidic catalyst in the method (3) may be either an inorganic acid or an organic acid. Specifically, there may be mentioned the same acidic catalyst in the esterification reaction of the above-mentioned method (1).
- the preferred lower limit of the amount of the acidic catalyst is 0.5% by weight based on the total amount of the reaction solution.
- a preferred upper limit is 5% by weight.
- the reaction temperature of the above method (3) is preferably from the viewpoint of shortening the reaction time and preventing polymerization, the lower limit is 70 ° C, the preferred upper limit is 150 ° C, and the more preferred lower limit is 100 ° C. A more preferred upper limit is 120 ° C.
- Solvents that can be used are not particularly limited as long as they do not react with (meth) acrylic acid, ratatones, polyhydric alcohols, and acidic catalysts, but aromatic hydrocarbons such as benzene, toluene, and xylene are preferred.
- the reaction may be carried out by adding a polymerization inhibitor again.
- the polymerization inhibitor include those similar to the polymerization inhibitor in the esterification reaction of the above-mentioned method (1), and the amount used thereof is usually a preferable lower limit with respect to the total amount of the reaction solution. 0.01% by weight, the preferred upper limit is 1% by weight.
- the method for synthesizing an oxide-modified compound having two or more polymerizable unsaturated bonds and a hydroxyl group in the molecule is not particularly limited.
- a polyhydric alcohol and oxidide are reacted.
- Examples thereof include a method (4) of synthesizing an oxide-modified polyhydric alcohol and then reacting the oxide-modified polyhydric alcohol with (meth) acrylic acid.
- the above polyhydric alcohol and oxide are reacted to synthesize an oxide-denaturing polyhydric alcohol.
- the above polyhydric alcohol is added to an autoclave equipped with a stirrer. After adding a basic catalyst and pressurizing with nitrogen, the autoclave is heated and reacted while introducing oxides sequentially. After completion of the reaction, the reaction solution is neutralized and filtered, and then the solvent is distilled off under reduced pressure.
- the basic catalyst used in the synthesis of the oxide-modified polyhydric alcohol is preferably an alkali metal hydroxide, an alkaline earth metal hydroxide or the like. Specifically, for example, water Examples include sodium oxide and potassium hydroxide.
- the solvent used in the synthesis of the oxide-modified polyhydric alcohol is a reaction.
- aromatic hydrocarbons such as benzene, toluene and xylene
- aliphatic hydrocarbons such as n-hexane and n-heptane
- fats such as cyclohexane and cyclopentane.
- cyclic hydrocarbons such as cyclohexane and cyclopentane.
- the polyhydric alcohol is not particularly limited, and examples thereof include trihydric or higher polyhydric alcohol compounds similar to those described above.
- Examples of the method of reacting the oxide-modified polyhydric alcohol with (meth) acrylic acid include a conventional dehydration esterification reaction.
- the above oxide-modified polyhydric alcohol, (meth) acrylic acid and solvent are charged into a reactor equipped with a stirrer, a thermometer and a water separator, and heated in the presence of an acidic catalyst.
- the reaction solution is washed with water, the aqueous layer is separated, and then the solvent is distilled off under reduced pressure.
- the solvent in the esterification reaction of the above method (4) is not particularly limited as long as it facilitates distillation of water and does not react with (meth) acrylic acid, oxide-modified polyhydric alcohol and acidic catalyst. However, the same solvent as that used in the epoxidation reaction of the above-described method (1) is preferably used.
- examples of the acidic catalyst in the esterification reaction of the above method (4) include those similar to the acidic catalyst in the above-mentioned method (1) epoxy reaction.
- a preferred lower limit to the total amount is 0.5% by weight, and a preferred upper limit is 5% by weight.
- the reaction temperature of the epoxy reaction in the above method (4) is preferably 70 ° C and the preferable upper limit is 150 ° C. By heating at a temperature within this range, the dehydration ester reaction can be carried out easily.
- a more preferred lower limit is 80 ° C, and a more preferred upper limit is 120 ° C.
- the esterification reaction in the above method (4) it is preferable to carry out the reaction by adding a polymerization inhibitor.
- the polymerization inhibitor include those similar to the polymerization inhibitor used in the esterification reaction of the above-described method (1).
- the amount of the polymerization inhibitor is generally preferably 0 with respect to the total amount of the reaction solution. .01 parts by weight, the preferred upper limit is 1% by weight.
- the target (meth) acrylate can also be obtained by reacting an oxide-modified polyhydric alcohol with an acid halide such as (meth) acrylic acid chloride.
- an acid halide such as (meth) acrylic acid chloride.
- Carboxylic acid compound having two or more carboxyl groups, and acid anhydride, and having two or more polymerizable unsaturated bonds and hydroxyl groups in the molecule, rataton-modified and Z- or oxide-modified As a method of adding a carboxylic acid compound having two or more carboxyl groups and Z or an acid anhydride to the resulting compound, two or more polymerizable unsaturated bonds and a hydroxyl group are contained in the molecule. Examples of the compound having the above and the same methods and methods as those described when the carboxylic acid compound having two or more carboxyl groups and Z or an acid anhydride are subjected to an addition reaction.
- the content of the above-mentioned polymerizable compound according to the present invention is not particularly limited, but for the column spacer according to the present invention 6.
- the preferable lower limit is 20% by weight and the preferable upper limit is 90% by weight with respect to the solid content of the curable resin composition. If it is less than 20% by weight, the curable resin composition for a column spacer of the present invention 6 is not sufficiently photocured, and when used for a column spacer, the pattern of the column spacer is formed by a photolithographic method. Sometimes it cannot be formed.
- the content exceeds 90% by weight, when the curable resin composition for a column spacer of the present invention 6 is used for a column spacer, the solubility in an alkaline developer used for producing the column spacer is low. Insufficient developability of the pattern of the column spacer to be produced may result. More preferred, the lower limit is 40% by weight, more preferred! /, And the upper limit is 80% by weight.
- the curable resin composition for a column spacer of the present invention 6 has an intramolecular structure in order to adjust reactivity, developability, etc. in addition to the above-described polymerizable compound according to the present invention 6.
- a compound having no carboxyl group! / A compound having a polymerizable unsaturated bond (hereinafter, also simply referred to as a compound containing a polymerizable unsaturated bond), for example, the curability for a column spacer of the present invention 6
- the column spacers to be manufactured do not lose the flexibility and developability.
- the polymerizable unsaturated bond-containing compound is not particularly limited.
- the bifunctional compound include neopentyl glycol di (meth) acrylate and 3-methyl 1,5-pentane diol di (meth) acrylate.
- tri- or higher functional group examples include trimethylolethane tri (meth) acrylate, relate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol tetra Multifunctional (meta) such as (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hex (meth) acrylate
- the blending amount thereof is not particularly limited, but the above-described polymerization property according to the present invention. Preferably less than 40% by weight of the total amount with the compound. When it exceeds 40% by weight
- the flexibility of the resulting column spacer may be impaired, and the effect of suppressing poor gravity and low-temperature foaming may be reduced.
- a more preferred upper limit is 30% by weight.
- the curable resin composition for a column spacer of the sixth invention contains an alkali-soluble polymer compound.
- alkali-soluble polymer compound examples include those similar to the alkali-soluble polymer compound described in the above-described curable resin composition for column spacers of the first invention.
- the content of the alkali-soluble polymer compound is not particularly limited, but a preferred lower limit is 10% by weight, and a preferred upper limit is 80%. %.
- a preferred lower limit is 10% by weight
- a preferred upper limit is 80%. %.
- the alkaline developer used for producing a column spacer using the curable resin composition for a column spacer of the present invention 6 is used. Therefore, the developability of the pattern of the column spacer to be produced may be insufficient, and if it exceeds 80% by weight, the curable resin composition for a column spacer of the present invention 6 is sufficient. In some cases, the pattern of the column spacer cannot be formed by photolithography without photocuring.
- a more preferred lower limit is 20% by weight
- a more preferred upper limit is 60% by weight.
- the curable resin composition for a column spacer of the present invention 6 contains a photoreaction initiator.
- the photoreaction initiator the curable resin for a column spacer of the present invention 1 described above. The thing similar to the photoinitiator demonstrated by the composition is mentioned.
- the content of the photoinitiator is not particularly limited, but a preferable lower limit is 1% by weight and a preferable upper limit is 20% by weight. is there. If it is less than 1% by weight, the curable resin composition for column spacers of the present invention 6 may not be photocured, and if it exceeds 20% by weight, it may not be possible to develop with a single force in photolithography. A more preferred lower limit is 5% by weight, and a more preferred upper limit is 15% by weight.
- the curable resin composition for column spacers of the present invention 2, 3, 4, 5 or 6 may contain a reaction aid in order to reduce reaction disturbance due to oxygen.
- a reaction aid in combination with a hydrogen abstraction type photoreaction initiator, the curing rate when irradiated with light can be improved.
- reaction assistant examples include amines such as n-butylamine, di-n-butylamine, triethylamine, triethylenetetramine, p-dimethylaminobenzoate, p-dimethylaminobenzoate, isoamyl, and tri-n-butylphosphine.
- Phosphine series s Benzyl isothilium-toluene p Toluene sulfinate and other sulfonic acids can be used. These reaction aids may be used alone or in combination of two or more.
- the curable resin composition for a column spacer of the present invention 1, 2, 3, 4, 5 or 6 preferably further contains a compound having two or more block isocyanate groups.
- the compound having two or more block isocyanate groups acts as a thermal cross-linking agent, and by containing such a compound having two or more block isocyanate groups, the present invention 2, 3, 4, 5, or 6 can impart thermosetting properties to the curable resin composition for column spacers.
- the compound having two or more block isocyanate groups is not particularly limited, and examples thereof include tolylene diisocyanate, 4,4-diphenylmethane diisocyanate, xylylene diisocyanate, and hexamethylene diene.
- Isocyanate, isophorone diisocyanate, methylene bis (4-cyclohexylisocyanate), trimethylhexamethylene diisocyanate, and polyfunctional isocyanates composed of these oligomers are converted into active methylene, oxime Examples thereof include those obtained by blocking with a blocking agent compound such as a system, ratatam, or alcohol.
- a blocking agent compound such as a system, ratatam, or alcohol.
- Such compounds having two or more block isocyanate groups include, for example, deuranate 17B-60PX, deuranate E-402-B80T (all manufactured by Asahi Kasei Chemicals Corporation). ) And the like.
- the formulation thereof As for the amount, a preferable lower limit is 0.01 parts by weight and a preferable upper limit is 50 parts by weight with respect to 100 parts by weight of the alkali-soluble polymer compound.
- the amount is less than 01 parts by weight, the curable resin yarn for a column spacer according to the present invention 1, 2, 3, 4 or 5 may not be sufficiently heat-cured, and when it exceeds 50 parts by weight. In some cases, the degree of cross-linking of the resulting cured product becomes too high to satisfy the elastic properties described below.
- a more preferred lower limit is 0.05 parts by weight, and a more preferred upper limit is 20 parts by weight.
- the curable resin composition for column spacers of the present invention 2, 3, 4, 5 or 6 may be diluted with a diluent to adjust the viscosity.
- diluent considering compatibility with the curable resin group for column spacers of the present invention 2, 3, 4, 5 or 6, coating method, film uniformity during drying, drying efficiency, etc. There is no particular limitation as long as it is selected, but when the curable resin group for a column spacer of the present invention 2, 3, 4, 5 or 6 is applied using a spin coater or a slit coater, for example, methyl cellulose , Ethyl Cellosolve, Ethyl Cellosolve Acetate, Diethylene Glycol Dimethyl Noleate Nore, Propylene Glycol Nole Monoethyl Noleate Nore Acetate, Isopropino Leanolate An organic solvent such as coal is preferred. These diluents may be used alone or in combination of two or more.
- the curable resin composition for a column spacer of the present invention 1, 2, 3, 4, 5 or 6 includes a silane coupling agent for improving the adhesion to the substrate, if necessary, Conventionally known additives may be contained.
- the curable resin composition for a column spacer of the present invention 1, 2, 3, 4, 5 or 6 is used, high recovery from compression deformation by photocuring (and thermosetting), and A column spacer that is both flexible and has a low elastic modulus can be manufactured, and a sharp resolution can be obtained without developing residue during pattern formation.
- a liquid crystal display element can be obtained in which the occurrence of color unevenness due to gravity failure without causing low-temperature foaming is effectively suppressed.
- the photothermosetting resin composition for column spacers of the present invention 1, 2, 3, 4, 5 or 6 is 25 ° of the cured product when cured by light irradiation (and heating).
- the preferable lower limit of the elastic modulus at 15% compression in C is 0.2 GPa, and the preferable upper limit is 1. OGPa. 0. If it is less than 2GPa, it may be too soft to hold the cell gap. 1. If it exceeds OGPa, it will be too hard and will go into the color filter layer when the substrates are bonded together. In some cases, sufficient elastic deformation necessary for this is not obtained. More preferably, the lower limit is 0.3 GPa, the more preferable upper limit is 0.9 GPa, the still more preferable lower limit is 0.5 GPa, and the still more preferable upper limit is 0.7 GPa.
- the cured product means the photothermosetting resin composition for column spacers of the present invention 1, 2, 3, 4, 5 or 6 almost completely by light irradiation (and heating). This means the cured product when cured.
- the conditions for almost complete curing at least 50 miZcm 2 of ultraviolet light is irradiated, and when heating is further performed, it can be cured almost completely by applying a heat treatment at a temperature of 200 to 250 ° C. for about 20 minutes.
- 15% compression means compression so that the deformation rate of the column spacer height is 15%.
- the elastic modulus and recovery rate were measured by the following methods.
- the column spacer formed on the substrate is compressed at a load application speed of lOmNZs. Compress until it reaches a height equivalent to 85% of the initial height H. Apply lmN load here
- F represents the load (N)
- D represents the deformation rate of the column spacer height
- S represents the cross-sectional area (m 2 ) of the column spacer.
- the method for producing the curable resin composition for a column spacer of the present invention 2, 3, 4, 5 or 6 is not particularly limited.
- two or more polymerizable molecules in the molecule described above Compound having unsaturated bond, alkali-soluble polymer compound, photoreactive initiator, polymerizable unsaturated bond-containing compound added if necessary, compound having two or more block isocyanate groups
- a method of mixing a diluent or the like by a conventionally known method for example, two or more polymerizable molecules in the molecule described above Compound having unsaturated bond, alkali-soluble polymer compound, photoreactive initiator, polymerizable unsaturated bond-containing compound added if necessary, compound having two or more block isocyanate groups.
- the present invention 1, 2, 3, 4, 5 or 6, first, the present invention 1, 2, 3, 4, 5 Alternatively, the curable resin composition for a column spacer of No. 6 is coated on a substrate to have a predetermined thickness to form a film.
- the coating method is not particularly limited, and for example, conventionally known coating methods such as spin coating, slit coating, spray coating, dip coating, and bar coating can be used.
- actinic rays such as ultraviolet rays are irradiated onto the formed film through a mask on which a predetermined pattern is formed.
- the photoinitiator react to be photocured.
- the irradiation amount of the actinic light is not particularly limited, but is preferably lOOmjZcm 2 or more in the case of ultraviolet rays. If it is less than lOOmjZcm 2 , the photocuring may be insufficient and the exposed alkali may be dissolved and a pattern may not be formed.
- the photocured product after photocuring is alkali-developed and becomes a photocured product of the curable resin composition for column spacers of the present invention 1, 2, 3, 4, 5 or 6 on the substrate.
- a predetermined pattern of force forms a ram spacer.
- the curable resin composition for column spacers of the present invention 2, 3, 4, 5 or 6 contains a compound having two or more polymerizable unsaturated groups in the molecule having the specific structure described above. It is possible to form a column spacer having a sharp pattern with excellent resolution that hardly generates a residue when a predetermined pattern is formed in this step. Further, the column spacer formed by using the curable resin composition for a column spacer according to the present invention 3, 4 or 5 further has high recovery from compression deformation and flexible and low elastic modulus. It will be a thing.
- the curable resin composition for a column spacer of the present invention 1, 2, 3, 4, 5 or 6 contains a compound having two or more block isocyanate groups, it is further subjected to development processing. By heating the patterned photocured product, the alkali-soluble polymer compound contained reacts with a compound having two or more block isocyanate groups.
- the heating conditions may be appropriately determined in consideration of the size and thickness of the pattern, but are preferably at least 200 ° C. for 20 minutes or more.
- a column spacer using the curable resin composition for a column spacer of the present invention 2, 3, 4, 5 or 6 is also one aspect of the present invention.
- the preferable lower limit of the elastic modulus at 15% compression at 25 ° C is 0.2 GPa
- the preferable upper limit is 1. OGPa. 0. If it is less than 2GPa, it may be difficult to maintain the cell gap because it is too soft. 1. If it exceeds OGPa, it will be too hard and it will go into one layer of the color filter when bonding the substrates, and it will be necessary for recovery. There are cases where sufficient elastic deformation cannot be obtained and force is applied.
- a more preferred lower limit is 0.3 GPa
- a more preferred upper limit is 0.9 GPa
- a still more preferred lower limit is 0.5 GPa
- a still more preferred upper limit is 0.7 GPa.
- the column spacer of the present invention is designed so that its height is slightly higher than the cell gap.
- the curable resin composition for column spacers of the present invention 2, 3, 4, 5 or 6 or a liquid crystal display device using the column spacer of the present invention is also one aspect of the present invention.
- a column spacer having a clear pattern that has excellent developability and solubility and does not generate a development residue when forming a pattern of the column spacer used in the production of a liquid crystal display device A curable resin composition for column spacers that can form a liquid crystal display, and a column spacer with a sharp pattern that does not generate a development residue when forming a pattern for a column spacer used in the manufacture of a liquid crystal display device.
- Curable resin composition for column spacers capable of obtaining a liquid crystal display element capable of effectively suppressing the occurrence of uneven color due to poor gravity without causing low-temperature foaming, and for the column spacer
- a column spacer and a liquid crystal display device using the curable resin composition can be provided.
- a 3 L separable flask was charged with 60 parts by weight of diethylene glycol dimethyl ether as a solvent, heated to 90 ° C in a nitrogen atmosphere, then 10 parts by weight of methyl methacrylate, 8 parts by weight of methacrylic acid, and n-butyl methacrylate. 12 parts by weight, 10 parts by weight of 2-ethyl hexyl acrylate, 0.4 parts by weight of azobisvalero-tolyl and 0.8 parts by weight of n-dodecyl mercaptan were continuously added dropwise over 3 hours.
- the obtained alkali-soluble polymer compound is sampled and gel permeation chroma.
- Mw weight average molecular weight
- ethylene oxide-modified pentaerythritol tetratalylate a compound obtained by reacting 1 mol of pentaerythritol with 35 mol of ethylene oxide, 1 mol of acrylic 60 parts by weight of Irgacure 907 (Ciba Specialty Chemicals Co., Ltd.) and 10 parts by weight of DETX — S (manufactured by Nippon Kayaku) and 70 parts by weight of diethylene glycol dimethyl ether as a solvent were mixed to prepare a curable resin composition for column spacers.
- Cyclomer P ACA- 230AA (manufactured by Daicel Chemical) as an alkali-soluble polymer compound, 100 parts by weight (solid content: 40 wt%), ethylene oxide-modified pentaerythritol tritalylate (1 mol of pentaerythritol is reacted with 30 mol of ethylene oxide) Compound obtained by reacting 3 mol of acrylic acid with 1 mol of the compound obtained by esterification) 60 parts by weight, Irgacure 907 (manufactured by Ciba Specialty Chemicals) as a photoinitiator and 10 parts by weight of DETX —S (manufactured by Nippon Shakuyaku Co., Ltd.) 10 parts by weight and 70 parts by weight of diethylene glycol dimethyl ether as a solvent were mixed to prepare a curable resin composition for column spacers.
- solid content 40 wt%
- Example 4 100 parts by weight of the alkali-soluble polymer compound solution obtained in Example 1 (solid content: 40 wt%), ethylene oxide Z-force prolataton-modified dipentaerythritol hexaatalate (1 mol of dipentaerythritol is reacted with 12 mol of ethylene oxide) 60 parts by weight of Irgacure as a photoinitiator 9 07 Compound of 1 mol of compound and 1 mol of acrylic acid reacted with 2 mol of prolatatone and 6 mol of compound.
- cyclomer P ACA-230 ⁇ (manufactured by Daicel Chemical Co., Ltd.) 100 parts by weight (solid content: 40 wt%), ethylene oxide Z-force prolataton-modified pentaerythritol tetraatalylate (pentaerythritol in 1 mol 1 mol of the compound obtained by reacting 8 mol, 1 mol of acrylic acid and 2 mol of prolatatone reacted with 4 mol of the compound by esterification) 80 parts by weight, photoreaction initiator ( Ciba Specialty Chemicals, Inc., Irgacure 369) 15 parts by weight and 60 parts by weight of diethylene glycol dimethyl ether as a solvent were mixed to prepare a curable resin composition for column spacers.
- ethylene oxide Z-force prolataton-modified pentaerythritol tetraatalylate pentaerythritol in 1 mol 1 mol of the compound obtained by
- Cyclomer P ACA- 230AA 100 parts by weight (solid content 40 wt%), 100 parts by weight of the alkali-soluble polymer compound solution obtained in Example 1 (solid content 40 wt%), force prolataton-modified pentaerythritol triatalylate (pentaerythritol 1) Compound obtained by reacting 2 mol of prolatatone with 1 mol of acrylic acid to 1 mol of ester by reaction with esterification) 80 parts by weight, Irgacure 907 (manufactured by Ciba Specialty Chemicals) as photoinitiator A curable resin composition for column spacers was prepared by mixing 10 parts by weight with 10 parts by weight of DETX-S (manufactured by Nippon Kayaku) and 70 parts by weight of diethylene glycol dimethyl ether as a solvent.
- DETX-S manufactured by Nippon Kayaku
- cyclomer PACA-230AA manufactured by Daicel Chemical 100 parts by weight (solid content: 40 wt%), force prolataton-modified dipentaerythritol bentarate (1 mol of dipentaerythritol, acrylic acid) Compound obtained by reacting 2 mol of force prolatatone with 1 mol of 5 mol of compound with ester ester) 120 parts by weight
- alkali-soluble polymer compound As an alkali-soluble polymer compound, cyclomer PACA-230AA (manufactured by Daicel Chemical) 100 parts by weight (solid content 40 wt%), 100 parts by weight (solid content rate) of the alkali-soluble polymer compound solution obtained in Example 1 40wt%), ethylene oxide Z-force prolataton-modified dipentaerythritol pentaatarylate (1 mole of dipentaerythritol is reacted with 12 moles of ethylene oxide, 1 mole of acrylic acid is reacted with 2 moles of strong prolacton Compound obtained by reacting 5 moles of the resulting compound with ester salt) 80 parts by weight, Irgacure 907 (manufactured by Ciba Specialty Chemicals) as photoinitiator 10 parts by weight and DETX-S (Japan) 10 parts by weight and 70 parts by weight of diethylene glycol dimethyl ether as a solvent are mixed to make a
- a curable resin composition for a column spacer was prepared in the same manner as in Example 1 except that the obtained compound (A) was used instead of the ethylene oxide-modified pentaerythritol tetraacrylate. A product was prepared.
- Example 10 Same as Example 10 except that the amount of diethanolamine was 5.40 parts by weight (51 mmol). Thus, a compound (B) having two or more polymerizable unsaturated bonds in the molecule having the structure represented by the following chemical formula (4) was obtained. The results of NMR measurement of the obtained compound (B) are shown in FIG.
- a curable resin composition for a column spacer was prepared in the same manner as in Example 1 except that the obtained compound (B) was used in place of ethylene oxide-modified pentaerythritol tetraacrylate. did.
- a curable resin composition for a column spacer was prepared in the same manner as in Example 1 except that the obtained compound (C) was used in place of the ethylene oxide-modified pentaerythritol tetraacrylate. did.
- force prolactone modified pentaerythritol triatalylate having the structure shown in the following chemical formula (6) (pentaerythritol lmol, force prolactone 8 mol, acrylic acid 3 mo) 50% by weight (41 mmol), hydroquinone 0.025 parts by weight as a polymerization inhibitor, and 40 parts by weight of methanol as a solvent were charged into a flask at 40 ° A monomer solution was prepared by heating to C and stirring.
- Fig. 4 shows the results of NMR measurement of the obtained compound (D).
- the NMR measurement of the force prolatatone-modified pentaerythritol triatalyte having the structure shown in chemical formula (6) used as a raw material monomer was also performed, and the results are shown in FIG.
- Example 1 100 parts by weight of the alkali-soluble polymer compound solution obtained in Example 1 (solid content: 40 wt%), 80 parts by weight of force prolatatatone-modified dipentaerythritol hexaatalylate (manufactured by Nippon Gyaku Co., Ltd., DPC A-120)
- Columnar was prepared by mixing 10 parts by weight of Irgacure 907 (Ciba Specialty Chemicals) as a photoinitiator, 10 parts by weight of DETX-S (Nippon Yakuyaku) and 70 parts by weight of diethylene glycol dimethyl ether as a solvent.
- a curable resin composition for pacer was prepared.
- Example 1 100 parts by weight of alkali-soluble polymer compound solution obtained in Example 1 (solid content: 40 wt%), 80 parts by weight of dipentaerythritol hexaatalylate (manufactured by Nippon Yakuyaku Co., Ltd., DPHA), ilgacure as photoinitiator 1 907 (manufactured by Ciba Specialty Chemicals) 10 parts by weight and DETX-S (manufactured by Nippon Gyaku) and 70 parts by weight of diethylene glycol dimethyl ether as a solvent are mixed to make a curing agent for column spacers.
- a fat composition was prepared.
- Cyclomer p ACA-200 (manufactured by Daicel Chemical Industries) 100 parts by weight (solid content 40 wt%), pentaerythritol triatalylate (manufactured by Kyoeisha KK, PET-30) 13.
- the curable resin composition obtained in each Example and Comparative Example was applied by spin coating on a glass substrate on which a transparent conductive film was formed, and dried at 100 ° C. for 2 minutes to obtain a coating film.
- the resulting coating film was irradiated with lOOmjZcm 2 ultraviolet rays through a 20 m square dot pattern mask. After that, the film was developed with 0.04% KOH solution for 40 seconds and washed with pure water for 30 seconds to form a column spacer pattern.
- the cross-sectional area of the column spacer is 20 ⁇ ⁇ ⁇ 20 ⁇ ⁇ (400 ⁇ ⁇ .) ⁇ 3.0 m &).
- alkali solubility was evaluated according to the following criteria.
- a sealant (manufactured by Sekisui Chemical Co., Ltd.) was applied on a glass substrate on which the obtained column spacer was formed with a dispenser so as to draw a rectangular frame.
- liquid crystal annealing was performed at 120 ° C. for 1 hour for thermosetting to produce a liquid crystal display element.
- the liquid crystal display element was turned on and the uniformity of the cell gap was visually observed on the display screen and evaluated according to the following criteria.
- the liquid crystal display element was left standing at 60 ° C. for 60 hours with the liquid crystal display element standing vertically. After standing, a liquid crystal display device was installed between the cross-cols, the display image was observed visually, and the occurrence of severe defects was evaluated according to the following criteria.
- liquid crystal display element was left at -20 ° C for 24 hours. After standing, a liquid crystal display device was installed between the crossed Nicols and observed visually, and the occurrence of low temperature foaming was evaluated according to the following criteria.
- a 3 L separable flask was charged with 60 parts by weight of diethylene glycol dimethyl ether as a solvent, heated to 90 ° C under a nitrogen atmosphere, and then 10 parts by weight of methyl methacrylate, 8 parts by weight of methacrylic acid, and n-butyl methacrylate 12 Part by weight, 10 parts by weight of 2-ethylhexyl acrylate, 0.4 parts by weight of azobisvalero-tolyl, and 0.8 parts by weight of n-dodecyl mercaptan were continuously added dropwise over 3 hours.
- a curable resin composition was prepared by mixing 10 parts by weight of T Chemicals) and 10 parts by weight of DETX-S (manufactured by Nippon Kayaku Co., Ltd.) and 70 parts by weight of diethylene glycol dimethyl ether as a solvent.
- Cyclomer P As an alkali-soluble polymer compound, Cyclomer P, ACA-230AA (manufactured by Daicel Chemical) 100 parts by weight (solid content 40 wt%), obtained as a compound containing a polymerizable unsaturated bond (1) 60 parts by weight of force-induced prolataton-modified pentaerythritol tetraacrylate with carboxyl group, Irgacure 907 (manufactured by Tinoku Specialty Chemicals) as a photoinitiator and 10 parts by weight of DETX—S (manufactured by Nippon Iyaku) )
- a curable resin composition was prepared by mixing 10 parts by weight and 70 parts by weight of diethylene glycol dimethyl ether as a solvent.
- Example 14 100 parts by weight of the alkali-soluble polymer compound solution obtained in Example 14, and carboxyl group-containing prolataton-modified pentaerythritol tritalylate obtained in Example 15 120 Parts by weight, photoinitiator (Ciba Specialty Chemicals, Irgacure 369), 15 parts by weight, thermal crosslinking agent (Asahi Kasei Chemicals, Duranate E-402-B80T), 8 parts by weight, and diethylene glycol dimethyl ether as solvent
- a curable resin composition was prepared by mixing 60 parts by weight.
- a 1 L eggplant-shaped flask was reacted with 100 parts by weight of methanol as a solvent, ethylene oxide Z-force prolataton-modified dipentaerythritol tetraphthalate (1 mol of acrylic acid and 2 mol of force prolatatone as a polyfunctional (meth) atalylate compound.
- a compound having the structure shown in the following chemical formula (14) As a raw material monomer, a compound having the structure shown in the following chemical formula (14): Prolatatone-modified dipentaerythritol pentaaterylate (1 mol of dipentaerythritol, 1 mol of acrylic acid and 2 mol of capalatatane reacting with 5 mol of ester) 20% by weight (12. Ommol), 1.20 parts by weight (12. Ommol) of succinic anhydride as an acid anhydride, 0.011 part by weight of hydroquinone as a polymerization inhibitor, and Propylene glycol acetate as solvent 20 parts by weight of methyl methyl ether (PGMEA) was placed in a flask and heated while flowing nitrogen.
- PGMEA methyl methyl ether
- force prolatatone-modified pentaerythritol-modified triatalylate having the structure shown in the following chemical formula (16) (reacting 3 mol of a compound obtained by reacting 1 mol of pentaerythritol with 2 mol of force prolatatone with 1 mol of acrylic acid) 20 parts by weight (16.5 mmol), 16.5 parts by weight (16.5 mmol) of succinic anhydride as an acid anhydride, 0.01 parts by weight of hydroquinone as a polymerization inhibitor, and acetic acid as a solvent Charge 20 parts by weight of propylene glycol methyl ether (PGMEA) into a flask and heat while flowing nitrogen. went.
- PGMEA propylene glycol methyl ether
- a curable column for column spacers was prepared in the same manner as in Example 14 except that the obtained compound C was used in place of the carboxyl group-containing prolatatone-modified dipentaerythritol hexaatalylate.
- a fat composition was prepared.
- force prolataton-modified dipentaerythritol pentaatalylate having the structure shown in the following chemical formula (18) (1 mol of dipentaerythritol is reacted with 12 mol of ⁇ -prolatathone, and 5 mol of acrylic acid is added by ester IV.
- Reacted compound) 20 parts by weight (10.8 mmol), 1.28 parts by weight (10.8 mmol) of succinic anhydride as acid anhydride, 0.011 parts by weight of hydroquinone as polymerization inhibitor, and propylene glycol acetate as solvent 20 parts by weight of methyl ether (PGMEA) was charged into a flask and heated while flowing nitrogen.
- Fig. 12 shows the results of NMR measurement of the force prolataton-modified dipentaerythritol pentaarate having the structure shown in chemical formula (18) used as the raw material monomer.
- force prolatatone-modified pentaerythritol-modified pentatalitolate having the structure shown in the following chemical formula (20) (1 mol of pentaerythritol was reacted with 8 mol of ⁇ -force prolatatone, and further 3 mol of acrylic acid was reacted with ester ester.
- an ethylene oxide-modified pentaerythritol tritalylate having a structure represented by the following chemical formula (22) (a compound obtained by reacting 20 moles of ethylene oxide with 1 mole of pentaerythritol and further reacting 3 moles of acrylic acid with ester ester) ) 20 parts by weight (18.3 mmol), 2.16 parts by weight (18.3 mmol) of succinic anhydride as an acid anhydride, 0.011 parts by weight of hydroquinone as a polymerization inhibitor, and propylene glycol methyl ether (PGMEA) as a solvent ) 20 parts by weight were charged into a flask and heated while flowing nitrogen.
- PGMEA propylene glycol methyl ether
- Example 14 In place of using the force prolatatatone-modified dipentaerythritol pentaatalylate having the structure shown in Formula (18) obtained in Example 24 in place of the carboxyl group-containing force prolatatatone-modified dipentaerythritol hexaatalylate, In the same manner as in Example 14, a curable resin composition for column spacers was prepared.
- a clear pattern that has excellent developability and solubility and does not cause development residue when forming a pattern of a column spacer used for manufacturing a liquid crystal display element.
- a curable resin composition for column spacers capable of forming a column spacer, and a column spacer having a clear pattern that does not generate a development residue when forming a pattern for a column spacer used for manufacturing a liquid crystal display device.
- a curable resin composition for column spacers which can form a liquid crystal display element and can obtain a liquid crystal display element capable of effectively suppressing the occurrence of color unevenness due to poor gravity without causing low-temperature foaming,
- a column spacer and a liquid crystal display element using the curable resin composition for column spacers can be provided.
- FIG. 1 is a graph showing the NMR measurement result of the compound (A) obtained in Example 10.
- FIG. 2 is a graph showing the NMR measurement result of the compound (B) obtained in Example 11.
- FIG. 3 is a graph showing the NMR measurement result of the compound (C) obtained in Example 12.
- FIG. 4 is a graph showing the NMR measurement result of the compound (D) obtained in Example 13.
- FIG. 5 is a graph showing NMR measurement results of raw material monomers used in Example 10.
- FIG. 6 is a graph showing NMR measurement results of raw material monomers used in Example 13.
- FIG. 7 is a graph showing the NMR measurement result of the compound (E) obtained in Example 18.
- FIG. 8 is a graph showing the NMR measurement result of the compound (F) obtained in Example 19.
- FIG. 9 is a graph showing the NMR measurement result of the compound (G) obtained in Example 20.
- FIG. 10 is a graph showing the NMR measurement result of the compound (H) obtained in Example 21.
- FIG. 11 is a graph showing the results of NMR measurement of tetrahydrophthalic anhydride used in Example 18.
- FIG. 12 is a graph showing NMR measurement results of raw material monomers used in Example 24.
- FIG. 13 is a graph showing the NMR measurement results of the compound (K) obtained in Example 24.
- FIG. 14 is a graph showing NMR measurement results of raw material monomers used in Example 25.
- FIG. 15 is a graph showing the NMR measurement results of the compound (L) obtained in Example 25.
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Abstract
Description
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US11/921,155 US20090128767A1 (en) | 2005-05-30 | 2006-05-30 | Curable resin composition for column spacer,column spacer, and liquid crystal display panel |
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JP2005224004A JP2007009164A (ja) | 2005-05-30 | 2005-08-02 | カラムスペーサ用硬化性樹脂組成物、カラムスペーサ及び液晶表示素子 |
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WO2009011353A1 (ja) * | 2007-07-17 | 2009-01-22 | Sony Chemical & Information Device Corporation | 樹脂組成物及び画像表示装置 |
US8773624B2 (en) | 2007-04-09 | 2014-07-08 | Sony Chemical & Information Device Corporation | Resin composition and image display apparatus |
US8821966B2 (en) | 2007-04-09 | 2014-09-02 | Dexerials Corporation | Image display device |
TWI468431B (zh) * | 2009-03-24 | 2015-01-11 | Jsr Corp | 保護膜形成用熱硬化性樹脂組成物、保護膜及保護膜之形成方法 |
US9423638B2 (en) | 2006-07-14 | 2016-08-23 | Dexerials Corporation | Resin composition and display unit |
US9885895B2 (en) | 2007-07-17 | 2018-02-06 | Dexerials Corporation | Image display device and production method thereof |
US10216026B2 (en) | 2007-04-09 | 2019-02-26 | Dexerials Corporation | Image display device that can display high brightness and high contrast images and includes a cured resin layer |
US10876013B2 (en) | 2007-04-10 | 2020-12-29 | Dexerials Corporation | Method for producing image display apparatus |
WO2024004826A1 (ja) * | 2022-06-29 | 2024-01-04 | 東レ株式会社 | 活性エネルギー線硬化型組成物、活性エネルギー線硬化型インキおよび印刷物の製造方法 |
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US8389593B2 (en) | 2008-12-24 | 2013-03-05 | Lg Chem, Ltd. | Composition for simultaneously forming two isolated column spacer patterns |
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WO2015068703A1 (ja) | 2013-11-05 | 2015-05-14 | 太陽インキ製造株式会社 | 硬化型組成物、これを用いた硬化塗膜及びプリント配線板 |
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Also Published As
Publication number | Publication date |
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KR20080026119A (ko) | 2008-03-24 |
TW200707035A (en) | 2007-02-16 |
US20090128767A1 (en) | 2009-05-21 |
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