WO2006120998A1 - 液晶滴下工法用シール剤、上下導通材料及び液晶表示素子 - Google Patents
液晶滴下工法用シール剤、上下導通材料及び液晶表示素子 Download PDFInfo
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- WO2006120998A1 WO2006120998A1 PCT/JP2006/309240 JP2006309240W WO2006120998A1 WO 2006120998 A1 WO2006120998 A1 WO 2006120998A1 JP 2006309240 W JP2006309240 W JP 2006309240W WO 2006120998 A1 WO2006120998 A1 WO 2006120998A1
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- 239000012528 membrane Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N methylimidazole Natural products CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- ZCIJAGHWGVCOHJ-UHFFFAOYSA-N naphthalene phenol Chemical compound C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.C1=CC=CC2=CC=CC=C12.C1(=CC=CC=C1)O ZCIJAGHWGVCOHJ-UHFFFAOYSA-N 0.000 description 1
- 150000002791 naphthoquinones Chemical class 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- IWDCLRJOBJJRNH-UHFFFAOYSA-N para-hydroxytoluene Natural products CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- FNEXYKFLYBHKOC-JHMJXZSVSA-N sidol Chemical compound C1C[C@H](C2)C(=C)C[C@@]32[C@@H](O)C[C@@H]2[C@](COC(=O)C)(O)[C@H](OC(C)=O)CC[C@@]2(C)[C@@H]31 FNEXYKFLYBHKOC-JHMJXZSVSA-N 0.000 description 1
- OWFBYNFTXVLIMJ-UHFFFAOYSA-N sidol Natural products CC(=O)OC1CCC2(C)C3CCC4CC3(CC4=C)C(O)CC2C1(C)CO OWFBYNFTXVLIMJ-UHFFFAOYSA-N 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000004149 thio group Chemical group *S* 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- AISMNBXOJRHCIA-UHFFFAOYSA-N trimethylazanium;bromide Chemical compound Br.CN(C)C AISMNBXOJRHCIA-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/05—Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
- C09K2323/057—Ester polymer, e.g. polycarbonate, polyacrylate or polyester
-
- 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
- G02F1/1341—Filling or closing 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
- 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
- G02F1/1341—Filling or closing of cells
- G02F1/13415—Drop filling process
-
- 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 is excellent in adhesion to a substrate in the production of a liquid crystal display element, and therefore it is difficult for a peeling phenomenon to occur between the substrate and liquid crystal contamination.
- liquid crystal display element sealant that is ideal for the manufacture of liquid crystal display elements with little color unevenness and the liquid crystal display element manufactured by the dripping method, it is sufficiently cured even if there is a spot that is not directly irradiated with light.
- a liquid crystal dropping method sealing agent capable of realizing high display quality and high reliability of a liquid crystal display element in which liquid crystal is not deteriorated by ultraviolet rays irradiated during curing, a vertical conduction material, and
- the present invention relates to a liquid crystal display element using these.
- a liquid crystal display element such as a liquid crystal display cell
- two transparent substrates with electrodes are opposed to each other with a predetermined interval, and the periphery thereof is sealed with a sealing agent having a curable resin composition strength.
- a cell is formed by injecting the liquid crystal into a liquid crystal injection locus cell provided in a part thereof, and the liquid crystal injection port is sealed by using a sealing agent or a sealing agent; It was.
- a seal pattern in which a liquid crystal injection port using a thermosetting sealant is provided by screen printing on one of two transparent substrates with electrodes is formed at 60 to 100 °.
- Pre-bak with C and dry the solvent in the sealant is performed at 110 to 220 for 10 to 90 minutes to adjust the gap near the seal, and then 110 to 220 in the oven.
- liquid crystal was injected from the liquid crystal injection port, and finally the liquid crystal injection port was sealed with a sealing agent to produce a liquid crystal display element.
- a manufacturing method of a liquid crystal display element called a dripping method using a sealant composed of a photocurable thermosetting combined resin composition has been studied (for example, see Patent Document 1). .
- the dropping method first, a rectangular seal pattern is formed on one of two transparent substrates with electrodes by screen printing. Next, fine droplets of liquid crystal are dropped onto the entire surface of the transparent substrate frame in an uncured state of the sealant, and the other transparent substrate is immediately overlaid, and the seal portion is irradiated with ultraviolet rays for temporary curing. Thereafter, heating is performed during liquid crystal annealing to perform main curing, and a liquid crystal display element is manufactured. If the substrates are bonded together under reduced pressure, a liquid crystal display element can be manufactured with extremely high efficiency. At present, this dripping method has become the mainstream method for manufacturing liquid crystal display elements!
- Patent Document 2 discloses an adhesive mainly composed of a partial (meth) acrylate of bisphenol A type epoxy resin.
- Patent Document 3 Patent Document 4
- Patent Document 5 Patent Document 6
- Patent Document 4 discloses a liquid crystal sealant mainly composed of (meth) acrylate.
- FIG. 2 is a cross-sectional view schematically showing an example of a liquid crystal display element.
- the ultraviolet rays irradiated to cure the sealing agent are irradiated to the liquid crystal with little force, so the sealing agent is cured with ultraviolet rays that have a short wavelength and high engineering energy.
- the liquid crystal deteriorates, and there is a problem that the display quality of the liquid crystal display element is remarkably lowered and the reliability is lowered.
- Patent Document 1 JP 2001-133794 A
- Patent Document 2 JP-A-6-160872
- Patent Document 3 Japanese Patent Laid-Open No. 1-243029
- Patent Document 4 JP-A-7-13173
- Patent Document 5 Japanese Patent Laid-Open No. 7-13174
- Patent Document 6 Japanese Patent Laid-Open No. 7-13175
- the present invention has excellent adhesion to a substrate in the production of a liquid crystal display element, and therefore, it is difficult for a peeling phenomenon to occur between the substrate and liquid crystal contamination.
- liquid crystal display there is little color unevenness! /
- the sealant for liquid crystal dripping method that is optimal for the production of liquid crystal display elements, and the place where light is not directly irradiated in the production of liquid crystal display elements by the dripping method Liquid crystal dripping that can be sufficiently cured even if there is a liquid crystal and that can realize high display quality and high reliability of a liquid crystal display element in which the liquid crystal is not deteriorated by ultraviolet rays irradiated during curing. It is an object to provide a sealing agent for a construction method, a vertical conduction material, and a liquid crystal display device using these.
- a first aspect of the present invention is a sealing agent for a liquid crystal dropping method containing a (meth) attareito toy compound having a structure represented by the following general formula (1), which contains a curable adhesive. It is a sealing agent for liquid crystal dropping method in which 10 to 70% by weight of the fat component is the above (meth) atalate toy compound.
- R 1 represents a hydrogen atom or a methyl group
- X represents one selected from the group represented by the following chemical formula (2)
- Y represents the following chemical formula (3) 1 represents one selected from the group represented
- A represents a ring-opening structure of cyclic rataton
- n is 0 or 1.
- X, X ' H, CH 3 , F, Cl, Br, OCH 3
- the second aspect of the present invention is a liquid crystal sealant for a dripping method comprising a radical initiator that generates active radicals upon irradiation with light, a curable resin, and a solid organic acid hydrazide.
- the initiator has a molar extinction coefficient at 350 nm measured in acetonitrile of 100 to 100,000 ⁇ — 1 ⁇ cm— 1 , and more than 60 mol% of the reactive functional groups contained in the curable resin are (meth) atallyloyl.
- It is a sealing agent for a liquid crystal dropping method as a base. The present invention is described in detail below.
- the present inventors have a specific structure as a sealing agent for a liquid crystal dropping method.
- the film can be excellent in adhesiveness to the surface of the substrate on which a cured alignment film or a film such as a black matrix is formed, and the present invention has been completed.
- the present inventors have previously proposed a sealing agent for liquid crystal display elements using a curable resin composition containing an acrylated epoxy resin as a suitable sealing agent particularly in the dropping method. Yes.
- the sealant for a liquid crystal display element can be a combined type of photocuring and heat curing, and the liquid resin having a high polarity of the resin can be used. Since the compatibility is low, contamination of the liquid crystal can be effectively prevented.
- a film such as an alignment film or a black matrix is formed on the surface of the substrate on which the sealant is formed, there is a problem in that the adhesive force with the sealant decreases after photocuring.
- the present inventors have used a (meth) attareito toy compound having a specific structure as a sealing agent for a liquid crystal dropping method, and thereby, such as a cured alignment film or black matrix. It has been found that the film can be excellent in adhesion to the substrate surface, and the first invention has been completed.
- the present inventors have determined that when the sealing agent for liquid crystal dropping method has a property of being cured by ultraviolet rays having a long wavelength of about 350 ⁇ m, it is used for the dropping method. In addition, it is possible to sufficiently cure even a portion where ultraviolet irradiation is blocked by a black matrix (BM) or the like, and that the liquid crystal is not deteriorated because the energy of ultraviolet rays is low.
- BM black matrix
- the sealing agent for liquid crystal dropping method of the first invention (hereinafter referred to simply as the sealing agent of the first invention)
- V, U contains a (meth) acrylate compound having the structure represented by the general formula (1).
- X represents one selected from the group represented by the chemical formula (2).
- Y represents one selected from the group represented by the chemical formula (3), ⁇ represents a ring-opening structure of cyclic lactone, and n is 0 or 1. Since the sealing agent of the first present invention containing the (meth) atreatoy compound having such a structure is excellent in adhesion to the substrate, it is difficult for the phenomenon of peeling between the substrate and liquid crystal contamination. Therefore, it is optimal for the manufacture of liquid crystal display elements with little color unevenness in liquid crystal displays.
- the (meta) acrylate refers to acrylate or metatalate.
- the structure of the other part is not particularly limited as long as the (meth) attareito toy compound has a structure represented by the general formula (1).
- the (meth) ataretoy compound preferably has a structure derived from ratatones. Since the sealing agent of the present invention has excellent flexibility, the internal stress generated when it is cured does not cause a phenomenon of peeling between the substrate and the adhesion force to the substrate surface which is difficult to decrease.
- n in A is 1 in the general formula (1).
- cyclic Rataton for example, gamma Undekarakuton, .epsilon. Chikarapu port Rataton, gamma Dekarakuton, .sigma. dodecalactone, gamma Nonarataton, gamma Nonanorataton, Y one Bruno Le port Rataton, sigma Bruno Le port Rataton, 13 butyrolatathone, ⁇ butyrolatathone, 13 —propiolatataton, ⁇ —hexanolataton, 7 butyl 2-oxepanone and the like.
- These cyclic ratatones may be used alone or in combination of two or more, and those in which the straight chain portion of the main skeleton has 5 to 7 carbon atoms when ring-opened are preferable.
- the (meth) atalyte toy compound preferably has a segment in which three or more methylene groups are connected.
- the sealing agent of the first aspect of the present invention is excellent in flexibility, so that the adhesive force to the substrate surface is not easily lowered by the internal stress generated when cured, and a peeling phenomenon occurs between the substrate and the substrate. There is no.
- the (meth) atareto toy compound is a polyfunctional (meta) atareto toy compound having two or more (meth) acryl groups. If the above (meth) atalate toy compound is polyfunctional having two or more (meth) acrylic groups, the cured product of the sealing agent of the first invention has a high heat resistance due to an increase in the bridge density. Excellent in reliability and highly reliable.
- the (meth) acrylate compound having the structure represented by the general formula (1) can be obtained, for example, by a reaction represented by the following formula (4).
- (carboxylic acid) (C 3) is obtained by reacting (meth) acrylate (A) with cyclic anhydride (B). Then, by reacting the carboxylic acid (C) with the epoxy compound (D), the (meth) acrylate compound (E) having the structure represented by the general formula (1) is obtained.
- the (meth) acrylate (A) preferably has a structure derived from ratatones.
- the above (meth) atarylate (A) has a structure derived from Rataton.
- the salt compound (E) has a structure derived from ratatones.
- n in the above A is 1.
- Specific examples of the (meth) atalylate (A) having a structure derived from the above-mentioned ratataton include, for example, force prolatathone 1-2- (meth) acrylochichetil, dicaprolatathone 1-2- (meth) acroirochichetil, Aliphatic epoxy acrylate (Ebecryl 111, Ebecryl 112, both manufactured by Daicel Cytec Co., Ltd.), Evolite containing a straight chain structure with six methylene groups linked 1600
- the method for synthesizing the (meth) atalylate (A) having a structure derived from the latatone is not particularly limited, and may be a conventionally known method, for example, a hydroxyl group such as 2-hydroxyethyl acrylate. Examples thereof include a method in which the (meth) acrylic acid ester having the cyclic rataton is mixed and heated to react.
- examples of Y include those similar to Y in the structure represented by the general formula (1) of the (meth) attareito toy compound. .
- Examples of such cyclic anhydrides (B) include maleic anhydride, succinic anhydride, phthalic anhydride, citraconic anhydride, Ricacid TH, Ricacid HT-1, Jamaicacid HH, Jamaicacid HT 700, Jamaicacid MH, Ricacid MT — 500, Ricacid HNA, Ricacid HNA—100, Ricacid OSA, Ricacid DDSA (all of which are manufactured by Shin Nihon Ryori Co., Ltd.).
- M represents an integer of 1 or more.
- Such an epoxy compound (D) may be a monofunctional epoxy or a polyfunctional epoxy, and the structure is particularly limited if it is a compound having at least one epoxy group.
- Z ′ constituting the epoxy compound (D) is not particularly limited, and includes any structure.
- epoxy compound (D) examples include, for example, Jamaica Resin L-100 (manufactured by Shin Nippon Chemical Co., Ltd.), EPICLON520, EPICLON703 (all of which are Dainippon Ink). N-butyldaricidyl ether, glycidyl (meth) atalylate, 4-hydroxybutyl attalylate glycidyl, and the like, preferably 10 or fewer carbon atoms constituting the main chain.
- the epoxy examples include bisphenol type such as EPICLON EXA-850CRP (Dainippon Ink Chemical Co., Ltd.), hydrogenated bisphenol type such as EPICLON EXA-7015 (Dainippon Ink Chemical Co., Ltd.), ethylene glycol diglycidyl ether, etc.
- the tri- or higher functional epoxy examples include EPICLON 725 (Dainippon Ink Chemical Co., Ltd.).
- the bisphenol type and hydrogenated bisphenol type examples include A type, E type, and F type.
- the epoxy compound (D) is preferably a bifunctional or higher functional epoxy compound having two or more epoxy groups.
- the (meth) ataretoy compound (E) synthesized is a polyfunctional (meth) acrylate having two or more (meth) acrylic groups as described above. It can be a compound. Specifically, by reacting 1 mol of the epoxy compound (D) with 1 mol of carboxylic acid (C) corresponding to the number of epoxy groups of the epoxy compound (D), 2 or more ( A polyfunctional (meth) acrylate compound having a (meth) acryl group is obtained.
- m in the (meth) atareto toy compound (E) is the same as the number of (meth) acrylic groups in the (meth) atareto toy compound (E).
- the (meth) acrylate compound (E) is preferably tetrafunctional or higher.
- Z in the (meth) ataretoy compound (E) produced by such a method is not particularly limited, and for example, has the same structure as Z 'constituting the epoxy compound (D).
- Z ′ of the epoxy compound (D) contains one or more epoxy groups
- a part or all of the epoxy groups in the Z ′ may contain the carboxylic acid (C) or any acrylic. A structure reacted with an acid or the like may be used.
- Specific examples of the above (meth) atta relay toy compound (E) include, for example, KRM7856, Ebe cryl 3708 (above, manufactured by Daicel Cytec Co., Ltd.) and the like.
- the catalyst is not particularly limited, and examples thereof include organic phosphine compounds such as triphenylphosphine, tertiary amines such as triethylamine, benzyldimethylamine, trimethylammonium chloride, triethylbenzylammonium chloride, Quaternary ammonium salts such as trimethylammonium bromide, 2-methylimidazole, 2-ethylyl 4
- Examples thereof include imidazole compounds such as methyl imidazole and 1-benzil 2-methylimidazole, and organic metal salts such as chromium otatenate, oleate cornate and chromium naphthenate.
- the preferred lower limit of the amount of catalyst added is 0.01% by weight, and the upper limit is 5.0% by weight. If the amount is less than 0.01% by weight, a sufficient reaction rate may not be obtained. If the amount exceeds 5.0% by weight, the physical properties of the sealant of the first invention may be adversely affected. A more preferred lower limit is 0.05% by weight and an upper limit is 2.0% by weight.
- the polymerization inhibitor is not particularly limited, and examples thereof include hydroquinone, hydroquinone monomethyl ether, phenothiazine p-tert-butylcatechol, 2,5-di-t-butylhydrone quinone, mono-tert-butylhydroquinone, p-benzoquinone, naphthoquinone, 2 , 5 diphenol bis p benzoquinone, di tert-butyl p cresol, 2,5 di tert-petit leu 4 methylphenol, p-methoxyphenol and the like.
- the reaction of the carboxylic acid (C) and the epoxy compound (D) is preferably carried out until the acid value becomes 2 mgKOH or less. If the amount exceeds 2 mg KOH, the carboxylic acid (C) is still present in a large amount, and the amount of the (meth) ataretoy compound (E) is insufficient.
- the above reaction is preferably performed until the oxysilane oxygen concentration becomes 1% or less. If it exceeds 1%, the epoxy compound (D) is still present in a large amount, and the amount of the (meth) acrylate compound (E) is insufficient.
- the above reaction is preferably carried out by measuring the acid value and oxysilane oxygen concentration by a method such as a titration method.
- the lower limit of the amount of the (meth) acrylate compound in the curable resin is 10 wt%, and the upper limit is 70 wt%. If it is less than 10% by weight, the residual stress of the cured product of the sealant of the first invention cannot be sufficiently relaxed, and the adhesion between the substrates of the manufactured liquid crystal display element becomes insufficient. If it exceeds 70% by weight, the cured product of the sealing agent of the first invention increases the adhesion between the substrates of the liquid crystal display element to be manufactured in order to disperse the residual stress, but the sealing agent of the first invention Dispensability etc. Workability will be very poor.
- the sealing agent of the first present invention may further contain other curable resin.
- the curable resin is not particularly limited, and examples thereof include those having a reactive functional group such as a (meth) atalyloyl group, a cyclic ether such as an epoxy group or an oxetanyl group, and a styryl group.
- a reactive functional group such as a (meth) atalyloyl group, a cyclic ether such as an epoxy group or an oxetanyl group, and a styryl group.
- (meth) acrylic acid ester, partial epoxy (meth) acrylate resin, epoxy resin and the like can be mentioned.
- Examples of the (meth) acrylic acid ester include an ester compound obtained by reacting (meth) acrylic acid with a compound having a hydroxyl group, and reacting (meth) acrylic acid with an epoxy compound. And epoxy (meth) acrylate and urethane (meth) acrylate obtained by reacting a isocyanate with a (meth) acrylic acid derivative having a hydroxyl group.
- the ester compound obtained by reacting the above (meth) acrylic acid with a compound having a hydroxyl group is not particularly limited, and examples of monofunctional compounds include 2-hydroxyethyl acrylate, 2-hydroxy Propyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, isobutyl (meth) acrylate, t — butyl (meth) acrylate, isootatil (meth) acrylate, lauryl (Meth) Athalylate, Stearyl (Meth) Athalylate, Isobornyl (Meth) Athalylate, Cyclohexyl (Meth) Atalylate, 2-Methoxyethyl (Meth) Atalylate, Methoxyethylene Glycol (Meth) Atalylate, 2 —Ethoxyethyl (meth) acrylate, tetrahydrofurfuryl (Meth) acrylate
- Examples of the bifunctional compound include 1,4-butanediol di (meth) acrylate, 1,3-butanediol di (meth) acrylate, 1,6-hexanediol di (meta) ) Atrelate, 1,9-nonanediol di (meth) acrylate, 1, 10-decane diol di (meth) acrylate 2—n-butyl-2-ethyl- 1,3-propanediol di (meth) acrylate, Dipropylene glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, polypropylene glycol (meth) acrylate, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, tetraethylene glycol di ( With (meth) acrylate, polyethylene glycol di (meth) acrylate, with propylene oxide Bisphenol A di (meth)
- Examples of the tri- or higher functional group include pentaerythritol tri (meth) acrylate, trimethylol propane tri (meth) acrylate, propylene oxide-added carboxymethyl propyl pan tri (meth) acrylate, ethylene Carboxymethylolpropane tri (meth) atalylate with oxide, force prolatatatone modified trimethylolpropane tri (meth) acrylate, ethylene oxide-added isocyanuric acid tri (meth) acrylate, dipentaerythritol penta (meth) Tallylate, dipentaerythritol hexa (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, pentaerythritol tetra (meth) acrylate, glycerol tri (meth) acrylate, propylene oxide added glycerol tri (meth) Atallate, tris (meth) acryl
- the epoxy (meth) acrylate which is obtained by reacting the (meth) acrylic acid with an epoxy compound is not particularly limited.
- an epoxy resin and (meth) acrylic acid can be used in a conventional manner.
- the epoxy compound as a raw material for synthesizing the epoxy (meth) acrylate is not particularly limited, and examples of commercially available products include Epicoat 828EL, Epicote 1004 (V, Bisphenol A type epoxy resin such as Epoxy Coat 806, Epicote 4004 (both manufactured by Japan Epoxy Resin Co., Ltd.), Epiclon 830CRP (manufactured by Dainippon Ink Chemical Co., Ltd.), etc.
- Epoxy resin Bisphenol S type epoxy resin such as Epiclon EXA1514 (Dainippon Ink Co., Ltd.); 2, 2, 1 diallyl bisphenol A type epoxy such as RE-810 NM (Nippon Kayaku Co., Ltd.) Hydrogenated bisphenol type epoxy resin such as Epiclon EXA7015 (Dainippon Ink); Propylene oxide added bisphenol A type epoxy such as EP-400 00S (Asahi Denka) Resorcinol-type epoxy resin such as EX-201 (manufactured by Nagase ChemteX); Bi-type epoxy resin such as Epicoat Y X-4000H (manufactured by Japan Epoxy Resin); YSLV-50TE (Tohto Kasei) Sulfide type epoxy resin such as YSLV-80DE (manufactured by Tohto Kasei Co., Ltd.); Dicyclopentagen type epoxy resin such as EP-4088S (Asahi Denka); Epiclone HP4032
- Phenolic novolac type epoxy resin Epiclone N -670- EXP- S Orthocresol novolac type epoxy resin such as Dainippon Ink Co .; Dicyclopentagen novolac type epoxy resin such as Epiclon HP720 0 (Dainippon Ink Co.); NC-30 OOP (Nipponization) Bifue GMBH, Ltd.) - novolac type epoxy ⁇ ; ESN- 165S (manufactured by Tohto Kasei Co., Ltd.) naphthalene phenol novolac epoxy ⁇ the like; Epikoto 630 (Ja Glycidylamine type epoxy resin such as Pan-Epoxy Resin Co., Epiclon 430 (Dainippon Ink Co., Ltd.), TETRAD—X (Mitsubishi Gas Chemical Co., Ltd.), ZX— 1542 (Tohto Kasei Co., Ltd.), Epiclon 726 (Dainippon Ink Co., Ltd.), Evolite 80
- epoxy (meth) acrylate which is obtained by reacting the (meth) acrylic acid with an epoxy compound
- an epoxy compound include, for example, resorcinol-type epoxy resin (EX-201, Nagase ChemteX Corporation). 360 parts by weight, 2 parts by weight of p-methoxyphenol as a polymerization inhibitor, 2 parts by weight of triethylamine as a reaction catalyst, and 210 parts by weight of acrylic acid are allowed to react for 5 hours while stirring at 90 ° C while feeding air. Can be obtained.
- the epoxy (meth) acrylate is sold as, for example, Evecril 3700, Evekril 3600, Evekril 3701, Evekril 3703, Evekrill 3200, Evekrill 3201, Evekril 3600, Evekril 3702, Evekrill 3412, Evekril 860, Evetal RDX63182, Evekril 6040, Evekril 3800 (all manufactured by Daicel Cytec), EA—1020, EA—1010, EA—5520, EA—5323, EA—CHD, EMA— 1 020 (all Shin Nakamura Chemical) Manufactured by Kogyo Co., Ltd.), Epoxy ester M—600A, Epoxy ester 40EM, Epoxy ester 70PA, Epoxy ester 200PA, Epoxy ester 80MFA, Epoxy ester 3002M, Epoxy ester 3002A, Epoxy ester 1600A, Epoxy ester 3000M, Epoxy ester 3000A, Epoxy ester 2 00E
- urethane (meth) acrylate obtained by reacting the above isocyanate with a (meth) acrylic acid derivative having a hydroxyl group
- a compound having two isocyanate groups has a hydroxyl group with respect to 1 equivalent (meta It can be obtained by reacting 2 equivalents of an acrylic acid derivative in the presence of a catalytic amount of a sulfur compound.
- the isocyanate used as a raw material for the urethane (meth) acrylate obtained by reacting the above isocyanate with a (meth) acrylic acid derivative having a hydroxyl group is not particularly limited.
- the isocyanate used as a raw material for the urethane (meth) acrylate obtained by reacting the above isocyanate with a (meth) acrylic acid derivative having a hydroxyl group is not particularly limited, and examples thereof include ethylene glycol, glycerin, and sorbitol. Chain-extended isocyanate compounds obtained by the reaction of polyols such as trimethylolpropane, (poly) propylene glycol, carbonate diol, polyether diol, polyether diol, poly diol prolatatone diol and excess isocyanate. Can be used.
- the (meth) acrylic acid derivative having a hydroxyl group which is a raw material for urethane (meth) acrylate obtained by reacting the above isocyanate with a (meth) acrylic acid derivative having a hydroxyl group
- a (meth) acrylic acid derivative having a hydroxyl group is not particularly limited,
- commercially available products such as 2-hydroxyethyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, ethylene glycol, propylene glycol, 1,3 propanediol, 1,3 butanediol, 1,4 butanediol ,
- Mono (meth) acrylates of trihydric alcohols such as polyethylene glycol, trimethylol eta And mono (meth) acrylate or di (meth) acrylate of trivalent alcohols such as styrene, trimethylol propane and glycerol, and epoxy acrylates such as bisphenol A-modified epoxy acrylate.
- urethane (meth) acrylate obtained by reacting the above isocyanate with a hydroxyl group-containing (meth) acrylic acid derivative include, for example, 134 parts by weight of trimethylol propane as a polymerization inhibitor.
- BHTO. 2 parts by weight, 0.01 parts by weight of dibutyltin dilaurate as a reaction catalyst and 666 parts by weight of isophorone diisocyanate were added and reacted at 60 ° C for 2 hours with reflux stirring, then 2 It can be obtained by adding 51 parts by weight of hydroxyethyl acrylate and reacting for 2 hours at 90 ° C with stirring while refluxing air.
- Examples of commercially available urethane (meth) acrylates include M-1100,
- Examples of the partial epoxy (meth) acrylate resin include compounds obtained by reacting a part of epoxy groups of a compound having two or more epoxy groups with (meth) acrylic acid, and 2 (Meth) acrylic acid derivative with hydroxyl group in functional or higher isocyanate Body, and compounds obtained by reacting glycidol.
- Examples of the compound obtained by reacting a part of the epoxy group of the compound having two or more epoxy groups with (meth) acrylic acid include, for example, epoxy resin and (meth) acrylic acid. And those obtained by reacting in the presence of a basic catalyst according to a conventional method.
- the blending amount of the epoxy resin and (meth) acrylic acid is preferably such that the lower limit of the carboxylic acid is 0.1 equivalent and the upper limit is 0.5 equivalent with respect to 1 equivalent of epoxy group. More preferably, the lower limit of the carboxylic acid is 0.2 equivalent and the upper limit is 0.4 equivalent with respect to 1 equivalent of the epoxy group.
- Examples of the epoxy compound used as a raw material of the compound obtained by reacting a part of the epoxy group of the compound having two or more epoxy groups with (meth) acrylic acid include the above-described epoxy (meta). ) The same epoxy compound as a raw material for synthesizing attalylate can be mentioned.
- Specific examples of the compound obtained by reacting a portion of the epoxy group of the compound having two or more epoxy groups with (meth) acrylic acid include, for example, phenol nopolac type epoxy resin ( Dow Chemical Co., Ltd .: DEN 431) 1000 parts by weight, p-methoxyphenol 2 parts by weight as a polymerization inhibitor, 2 parts by weight of triethylamine as a reaction catalyst, and 200 parts by weight of acrylic acid at 90 ° C while refluxing. However, it can be obtained by reacting for 5 hours (in this case, 50% partially acrylated).
- the compound obtained by reacting a (meth) acrylic acid derivative having a hydroxyl group with the above bifunctional or higher isocyanate has, for example, a hydroxyl group with respect to 1 equivalent of a compound having two isocyanate groups ( One equivalent each of the meth) acrylic acid derivative and glycidyl can be obtained by reacting in the presence of a catalytic amount of a tin-based compound.
- the bifunctional or higher isocyanate used as a raw material of the compound obtained by reacting sidol is not particularly limited.
- urethane obtained by reacting the above-described isocyanate with a (meth) acrylic acid derivative having a hydroxyl group examples thereof include those similar to the isocyanate used as a raw material for (meth) acrylate.
- the (meth) acrylic acid derivative having a hydroxyl group which is a raw material for the compound obtained by reacting the above-mentioned bifunctional or higher isocyanate with a hydroxyl group (meth) acrylic acid derivative and Daricidol, is not particularly limited.
- Specific examples of the compound obtained by reacting the above-described bifunctional or higher isocyanate with a (meth) acrylic acid derivative having a hydroxyl group and Daricidol include, for example, 134 parts by weight of trimethylolpropane, a polymerization initiator, and the like.
- a (meth) acrylic acid derivative having a hydroxyl group and Daricidol include, for example, 134 parts by weight of trimethylolpropane, a polymerization initiator, and the like.
- BHTO. 2 parts by weight dibutinoletin dilaurate as the reaction catalyst 0.01 parts by weight, isophorone diisocyanate 666 parts by weight, reacted at 60 ° C. with reflux stirring for 2 hours, and then 2-hydroxy It can be obtained by adding 25.5 parts by weight of ethyl acetate and 111 parts by weight of glycidol and reacting at 90 ° C. for 2 hours while refluxing and stirring air.
- the epoxy resin is not particularly limited, and examples thereof include an epichlorohydrin derivative, a cyclic aliphatic epoxy resin, a compound that can obtain a reaction force between isocyanate and glycidol, and the like.
- Examples of the epichlorohydrin derivatives include bisphenol A type epoxy resin such as Epicoat 828EL and Epicoat 1004 (V, manufactured by Japan Epoxy Resin Co., Ltd.), Epicote 806, Epicoat 4004 (V Bisphenol F-type epoxy resin such as Epoxy resin, Epoxylon EXA1514 (Dainippon Ink Co.), RE-810NM (manufactured by Nippon Kayaku Co., Ltd.), etc.
- Novolac epoxy resin dicyclopentagen novolac epoxy resin such as Epiclon HP7200 (manufactured by Dainippon Ink and Co., Ltd.), biphenol novolac epoxy resin such as NC-3000P (manufactured by Nippon Yakuhin Co., Ltd.) , ESN-1 Naphthalene phenol novolac epoxy resin such as 65S (manufactured by Toto Kasei), Epoxy Coat 630 (manufactured by Japan Epoxy Resin), Epiclon 430 (manufactured by Dainippon Ink), TETRAD— X (manufactured by Mitsubishi Gas Chemical Company), etc.
- dicyclopentagen novolac epoxy resin such as Epiclon HP7200 (manufactured by Dainippon Ink and Co., Ltd.)
- biphenol novolac epoxy resin such as NC-3000P (manufactured by Nippon Yakuhin Co., Ltd.)
- ESN-1 Naphthalene phenol novolac epoxy resin
- Glycidylamine type epoxy resin ZX-1542 (manufactured by Tohto Kasei Co., Ltd.), Epiclon 726 (manufactured by Dainippon Ink & Co.), Evolite 80 MFA (manufactured by Kyoeisha Chemical Co., Ltd.), Denacol EX—611 (manufactured by Nagase ChemteX) Alkyl polyol type epoxy resin, YR—450, YR—207 (all manufactured by Tohto Kasei Co., Ltd.), Epolide PB (manufactured by Daicel Chemical Co., Ltd.) and other rubber-modified epoxy resins, Denacol EX—147 (Nagase Chem) Glycidyl ester compounds such as Epex Coat YL-700 0 (manufactured by Japan Epoxy Resin Co., Ltd.), etc.
- Bisphenol A type episulfur resin other YDC-1312, YSLV-80XY, YSL V—90CR (all manufactured by Tohto Kasei), XAC4 151 (produced by Asahi Kasei), Epicoat 1031, Epicoat 1032 (all produced by Japan Epoxy Resin), EXA-7120 (produced by Dainippon Ink), TEPIC (Nissan) Chemical Co., Ltd.).
- the cycloaliphatic epoxy resin is not particularly limited, but examples of commercially available products include Celoxide 2021, Celoxide 2080, Celoxide 3000, Epolide GT300, ⁇ (V, deviation is also made by Daicel Chemical Industries, Ltd.) ) And the like.
- the reaction force between the isocyanate and glycidol is not particularly limited. For example, by reacting a compound having two isocyanate groups with 2 equivalents of glycidol in the presence of a tin compound. Obtainable.
- the isocyanate is not particularly limited, and examples thereof include isophorone diisocyanate, 2, 4 tolylene diisocyanate, 2, 6 tolylene diisocyanate, hexamethylene diisocyanate, and trimethylhexamethylene diene.
- Examples of the isocyanate include ethylene glycol, glycerin, sorbitol, trimethylolpropane, (poly) propylene glycol, carbonate diol, polyether diol, polyester diol, and polyprolacton diol. It is possible to use chain-extended isocyanate compounds obtained by reacting polyols with excess isocyanate.
- Specific examples of a method for synthesizing a compound capable of obtaining a reaction force between the isocyanate and glycidol include, for example, 134 parts by weight of trimethylolpropane, 0.01 part by weight of dibutyltin dilaurate as a reaction catalyst, and Add 666 parts by weight of isophorone diisocyanate and react at 60 ° C for 2 hours with stirring under reflux. Next, add 222 parts by weight of glycidol and stir at 90 ° C while feeding air. The method of making it react for 2 hours etc. are mentioned.
- the curable resin is a compound having two or more reactive groups in one molecule in order to reduce the uncured residue at the time of curing.
- the curable resin is a compound having two or more reactive groups in one molecule in order to reduce the uncured residue at the time of curing.
- it is.
- the curable resin has at least one hydrogen bonding functional group in one molecule. It is preferable to have
- the hydrogen bonding functional group is not particularly limited.
- the sealing agent of the first invention preferably contains a photopolymerization initiator.
- the photopolymerization initiator is not particularly limited.
- These polymerization initiators may be used alone or in combination of two or more.
- the commercially available photopolymerization initiators include, for example, Irgacure 90 07, Inore Gacure 819, Inore Gacure 651, Inore Gacure 369 (above, manufactured by Serichin Chinoku Specialty Chemicals Co., Ltd.) ), Benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and lucillin TPO (manufactured by BASF Japan).
- Irgacure 907 Irgacure 907, Irgacure 651, BIPE, and Lucyrin TPO are preferably those having a molar extinction coefficient at 350 nm of 100 ⁇ - 1 ⁇ cm- 1 or more measured in acetonitrile.
- the content of the photopolymerization initiator is based on a total of 100 parts by weight of the (meth) attareito toy compound having the structure represented by the general formula (1) and the curable resin.
- the lower limit is 0.1 parts by weight and the upper limit is 10 parts by weight.
- the amount is less than 1 part by weight, the ability of initiating photopolymerization is insufficient and the above-described effects of the present invention cannot be obtained.
- the amount exceeds 10 parts by weight a large amount of unreacted radical polymerization initiator remains.
- the weather resistance of the sealing agent of the present invention is deteriorated.
- a more preferred lower limit is 1 part by weight, and a more preferred upper limit is 5 parts by weight.
- the sealant of the first invention further includes radical polymerization initiation that generates active radicals by irradiating with the light of the sealant of the second invention described later. It may contain an agent.
- the sealing agent of the first invention preferably contains a radical polymerization initiator having three or more ring structures in the molecule.
- radical polymerization initiators having three or more ring structures in the molecule have a strong molecular structure, they are used as radical polymerization initiators that have been conventionally used for the production of liquid crystal display devices by the dropping method. Because of its low volatility, the first seal of the present invention When a liquid crystal display element is produced by a dropping method using an agent, a radical polymerization initiator having three or more ring structures in the molecule is difficult to diffuse into the sealant.
- the ring structure means a ring structure having 5 or more atoms such as a benzene ring, a cyclohexane ring, a morpholine ring and the like.
- the radical polymerization initiator having three or more ring structures in the molecule is not particularly limited, and examples thereof include 4-phenol penzophenone, 4-benzoyl 4, 1-methyldiphenyl sulfide, 2, 2 bis ( 2) Black 4, 1, 4, 5, 5, 1 tetraphenyl, 1, H- (1,2 ') biimidazole.
- Examples of commercially available radical polymerization initiators having three or more ring structures in the molecule include Irgacure 369, Irgacure 819, and Irgacure TPO (all of these are manufactured by Chino Specialty Chemicals), Examples include Speed Cure BCIM (manufactured by LAMBSON).
- Radical polymerization initiators having three or more ring structures within the molecule preferable lower limit of the molar extinction coefficient at 400nm was measured boss in Asetonitoriru is 200M _1 'cm _1. If it is less than 200 M _ 1 'cm _1, it decreased curability of the curable ⁇ , also when A liquid crystal display device was manufactured by dropping process using the sealant of the first present invention, the molecular A radical polymerization initiator having three or more ring structures inside may diffuse into the liquid crystal.
- the sealant of the first present invention may contain a thermosetting agent.
- the thermosetting agent is not particularly limited, and includes, for example, hydrazide compounds such as 1,3bis [hydrazinocarbonoethyl-5 isopropyl hydantoin], dicyandiamide, guanidine derivatives, 1-cyanethyl 2-phenyl- Ruimidazole, N— [2- (2-Methyl-1 imidazolyl) ethyl] urethane, 2, 4 Diamino 1-6— [2,1-Methylimidazolyl 1 (1,)]-ethyl triazine, N, N, 1 bis (2-Methyl-11-imidazolyl) urea, N, N, I (2-Methyl-11-imidazolyl) adipamide, 2 -Frue 4-Methyl-5-hydroxymethyl imidazole, 2 F-Ru 4,5 Dihydroxymethylimidazole Imidazole etc.
- Derivatives modified aliphatic polyamines, tetrahydrophthalic anhydride, acid anhydrides such as ethylene glycol monobis (anhydrotrimellitate), and addition products of various amines and epoxy resins. These may be used alone or in combination of two or more. Above all
- thermosetting agent a latent curing agent having a melting point of 100 ° C or higher is preferably used. If a curing agent with a melting point of 100 ° C or lower is used, the storage stability may be significantly deteriorated.
- thermosetting agent has a structure represented by the general formula (1).
- a more preferred upper limit is 50 parts by weight.
- the sealant for the liquid crystal dropping method of the second invention (hereinafter, also simply referred to as the sealant of the second invention) contains a curable resin.
- the reactive functional group contained in the curable resin is a (meth) atallyloyl group.
- the “reactive functional group” means a (meth) atalyloyl group, a cyclic ether such as an epoxy group or an oxetanyl group, a styryl group, and the like, and the (meth) atalyloyl group means an alitaroyl group or Means a methacryloyl group;
- the curable resin may be, for example, a (meth) atariate having a structure represented by the general formula (1) in the sealant of the first invention described above.
- Examples of the rate compound and curable rosin are the same.
- the reactive functional groups contained in the curable resin is a (meth) attaylyl group.
- the curable resin may be, for example, the (meth) acrylic acid ester or the partial epoxy.
- the total amount of reactive functional groups in the mixed resin is 60 mol% or more of (meth) attaroyl group. That means.
- the (meth) attalyloyl group is less than 60 mol% of the reactive functional group contained in the curable resin, it is not sufficiently cured by light irradiation and liquid crystal contamination occurs.
- the preferred lower limit is 75mo 1%.
- the curable resin includes, for example, a compound having at least one or more epoxy groups and (meth) taroloyl groups in one molecule. Is preferred.
- the curable resin preferably has two or more reactive functional groups in one molecule of the curable resin in order not to leave as much unreacted resin as possible after curing. By being in this range, the amount of unreacted compounds remaining after the polymerization or cross-linking reaction is extremely reduced, and the liquid crystal is not contaminated when the liquid crystal display device is produced using the sealing agent of the second invention.
- the upper limit of the number of reactive functional groups in one molecule is 6. When it is more than 6, curing shrinkage becomes large, which may cause a decrease in adhesive strength. More preferably, the lower limit is 2 and the upper limit force.
- the curable resin preferably has a hydrogen bonding functional group in one molecule. More preferably, it has a hydroxyl group or a urethane bond.
- the sealant of the second aspect of the present invention contains a radical polymerization initiator that generates active radicals when irradiated with light.
- the radical polymerization initiator is a molar extinction limit is 100M _ 1 of coefficients in 350nm measured in Asetonitoriru 'cm _1, the upper limit of 100,000 M _1' is cm _1.
- 100M _1 'cm _1 is less than, is shielded irradiation ultraviolet rays at a black matrix (BM) or the like!, It becomes impossible to cure the shielding part quickly and thoroughly when Ru part there Ru. If it exceeds 100,000 M _ 1 'cm _1 , the surface of the part directly irradiated with ultraviolet rays will be cured first, and the interior cannot be cured sufficiently. The part that is shielded and cannot be cured.
- the preferred lower limit is 200M _1 'cm _1
- preferred upper limit is 10,000 M _1' is cm _ 1
- more preferred lower limit is 300M- 1 ⁇ Better! /
- the upper limit is 3000M— 1 ⁇ cm— 1 .
- the radical polymerization initiator is preferably a molar extinction coefficient at 450nm measured in Asetonitoriru is ⁇ - 1 ⁇ cm- 1 or less. And when it is more than 100M _1 'cm _1, visible Active radicals are generated by light having a wavelength in the light range, and handling becomes very poor.
- I is the intensity of transmitted light
- I is the intensity of transmitted light of the acetonitrile acetonitrile
- c is the mol concentration (M)
- d is the thickness (cm) of the solution layer
- log (I / ⁇ ) represents absorbance.
- the radical polymerization initiator is not particularly limited as long as it satisfies the molar extinction coefficient.
- radical polymerization of a carbonyl group, a thio group-containing group, an azo group, an organic peroxide-containing group, or the like examples thereof include those having an initiating group, among which the following general formulas (5) to (8)
- a group having a structure represented by) is preferred.
- R 2 , R 3 and R 4 are each independently an alkyl group having 1 to 6 carbon atoms, a hydrogen atom, a hydroxyl group, or 1 to 6 represents an alkoxyl group, a (meth) acrylic group, a phenyl group,
- [0101] represents an aromatic ring which may have an alkyl group having 1 to 6 carbon atoms or a halogen group.
- a group having a structure represented by the general formula (5) is more preferable from the viewpoint of the generation efficiency of active radicals.
- the radical polymerization initiator preferably contains a hydrogen-bonding functional group.
- the hydrogen bonding functional group is not particularly limited as long as it is a functional group or residue having hydrogen bonding properties, for example, OH group, NH group, NHR group (R is aromatic or aliphatic carbonization)
- Examples include groups having residues such as NHCO bond, NH bond, CONHCO bond and NH—NH bond.
- the radical polymerization initiator is less likely to elute, and the liquid crystal contamination Dyeing is less likely to occur.
- the radical polymerization initiator preferably further has a reactive functional group capable of reacting with and binding to the curable resin.
- the reactive functional group is not particularly limited as long as it is a functional group capable of binding to a curable resin by a polymerization reaction.
- a cyclic ether group such as an epoxy group or an oxetanyl group, a (meth) acryl group, or a styryl group. Etc. Of these, a (meth) acryl group or an epoxy group is preferable.
- the radical polymerization initiator itself is formed and fixed with a curable resin, so that a residue of the polymerization initiator even after the completion of the polymerization. Does not elute into the liquid crystal, nor does it become an outgas by heating during realignment of the liquid crystal.
- the generated active radicals are radical polymerizable functional groups such as (meth) acrylic groups. If the active radicals are deactivated by hydrogen abstraction before being added to the liquid, elution into the liquid crystal may occur, or outgassing may occur after curing. Therefore, the radical polymerization initiator may have at least one hydrogen-bonding functional group and a reactive functional group, respectively, when the radical polymerization initiator group absorbs light and dissociates into two active radicals. preferable.
- the reactive functional group is V and the displaced active radical is also at least one hydrogen-bonding functional group. It is preferably arranged in the molecule so as to have a reactive functional group.
- the lower limit of the number average molecular weight of the radical polymerization initiator is preferably 300. If it is less than 300, the radical polymerization initiator component may elute into the liquid crystal, which may easily disturb the alignment of the liquid crystal.
- a preferred upper limit is 3000. If it exceeds 3000, the sealant of the second invention It may be difficult to adjust the viscosity.
- the method for producing the radical polymerization initiator is not particularly limited, and a conventionally known method can be used.
- (meth) acrylic acid or (meth) acrylic acid chloride is used in one molecule.
- a method of (meth) acrylic esterifying an alcohol derivative having a radical polymerization initiating group and a hydroxyl group; a compound having the radical polymerization initiating group and a hydroxyl group or an amino group in one molecule; and an epoxy group in the molecule A method of reacting one or more epoxy groups of a compound having two or more in a compound; a compound having two or more radical polymerization initiating groups and a hydroxyl group or an amino group in a molecule; and a compound having two or more epoxy groups in a molecule
- One of the epoxy groups is reacted, and the remaining epoxy group is further reacted with (meth) acrylic acid ester or (meth) acrylic acid ester monomer or supra having an active hydrogen group.
- Examples of the compound having two or more epoxy groups in the molecule include a bifunctional epoxy resin compound.
- the bifunctional epoxy resin compound is not particularly limited.
- bisphenol A type epoxy compound bisphenol F type epoxy resin, bisphenol AD type epoxy resin, etc.
- Type epoxy resin urethane-modified epoxy resin, nitrogen-containing epoxy resin epoxidized with meta-xylenediamine, etc., rubber-modified epoxy resin containing polybutadiene or -tolylbutadiene rubber (NBR), etc.
- These bifunctional epoxy rosin compounds may be solid or liquid.
- the (meth) acrylic acid ester monomer having a hydroxyl group is not particularly limited, and examples thereof include ethylene glycol, propylene glycol, 1,3-propanediol, 1,3- Mono (meth) acrylate of divalent alcohols such as butanediol, 1, 4 butanediol, polyethylene glycol, etc.
- Mono (meth) acrylate of trivalent alcohols such as trimethylolethane, trimethylolpropane, glycerin , Di (meth) acrylate and the like. These may be used alone or in combination of two or more.
- bifunctional isocyanate derivatives include diphenylmethane diisocyanate.
- MDI tolylene diisocyanate
- TDI tolylene diisocyanate
- XDI xylene diisocyanate
- IPDI isophorone diisocyanate
- NDI naphthylene diisocyanate
- TPDI tolidine diisocyanate
- HDI isocyanate
- HMDI dicyclohexylenomethane diisocyanate
- TMHDI trimethylhexamethylene diisocyanate
- the above radical polymerization initiators may be used alone or in combination of two or more.
- the preferred lower limit of the amount of the radical polymerization initiator in the sealant of the second invention is 0.1 parts by weight with respect to 100 parts by weight of the curable resin described above, and the preferred upper limit is 10 parts by weight. Part.
- the sealant of the second invention may not be sufficiently cured.
- the sealant of the second invention is irradiated with light.
- the surface of the sealant hardens first, so that the inside cannot be hardened sufficiently, and if there is a part shielded by BM or the like, the part can be hardened sufficiently. It may disappear. Moreover, the curing storage stability may be reduced.
- the sealing agent of the second invention may contain the photopolymerization initiator described in the sealing agent of the first invention.
- the sealing agent of the second present invention contains solid organic acid hydrazide.
- the curability of the sealing agent of the second aspect of the present invention by irradiation with ultraviolet rays is improved.
- the reason for this is not clear, but is thought to be as follows. That is, the solid organic acid hydrazide contained in the sealant of the second invention is irradiated with, for example, BM by scattering the irradiated ultraviolet rays in the sealant of the second invention. It is considered that the ultraviolet rays wrap around the portion where the ultraviolet rays are shielded, and as a result, the curability of the sealing agent of the second invention is improved.
- the solid organic acid hydrazide is not particularly limited, for example, sebacic acid dihydrazide. , Isophthalic acid dihydrazide, adipic acid dihydrazide, other Amicure VDH, Amicure UDH (V, slipper is made by Ajinomoto Fine Technone), ADH (Otsuka Chemical Co., Ltd.) and the like.
- the amount of the solid organic acid hydrazide to be blended is preferably 1 part by weight and preferably 50 parts by weight with respect to 100 parts by weight of the curable resin. If it is less than 1 part by weight, the effect of improving the curability of the sealing agent of the second invention is hardly obtained by blending solid organic acid hydrazide, and if it exceeds 50 parts by weight, the second In some cases, the viscosity of the sealant of the present invention is increased and handling properties are impaired. A more preferred upper limit is 30 parts by weight.
- the sealant of the second invention is used as it is. It can be made to act as a thermosetting agent that cures by heat.
- the sealing agent of the second invention may further contain the thermosetting agent described in the above-mentioned sealing agent of the first invention.
- the sealant of the first invention and the sealant of the second invention may further contain a silane coupling agent.
- the silane coupling agent serves as an adhesion aid that improves the adhesion to a glass substrate or the like.
- the silane coupling agent is not particularly limited, but is excellent in the effect of improving adhesion to a glass substrate and the like, and can be prevented from flowing into the liquid crystal by being chemically bonded to the curable resin.
- a material composed of an imidazolesilane compound having a structure in which is bonded is preferably used.
- These silane coupling agents may be used alone or in combination of two or more.
- the sealing agent of the first invention and the sealing agent of the second invention may contain a filler for the purpose of improving the adhesiveness by the stress dispersion effect and improving the linear expansion coefficient.
- the filler is not particularly limited, and examples thereof include talc, asbestos, silica, diatomaceous earth, smectite, bentonite.
- Inorganic fillers such as gypsum, calcium silicate, talc, glass beads, sericite activated clay, bentonite, and aluminum nitride
- organic fillers such as polyester fine particles, polyurethane fine particles, vinyl polymer fine particles, and acrylic polymer fine particles.
- the sealant of the first invention and the sealant of the second invention further comprise a reactive diluent for adjusting viscosity, a thixotropic agent for adjusting thixotropy, and a panel, as necessary.
- Spacer such as polymer beads for gap adjustment, 3—P—black mouth ferru, 1, 1—dimethylurea and other curing accelerator, antifoaming agent, leveling agent, polymerization inhibitor, etc. It may contain an agent.
- the method for producing the sealing agent of the first invention and the sealing agent of the second invention is not particularly limited.
- the curable resin, the radical polymerization initiator, and a compound as necessary are blended.
- the like, and the like are mixed by a conventionally known method using a three-roll or the like and uniformly dispersed.
- it may be contacted with an ion-adsorbing solid such as a layered silicate mineral.
- the sealing agent of the first present invention is excellent in adhesion to the substrate in the production of the liquid crystal display element, so that it is difficult for a peeling phenomenon to occur between the substrate and liquid crystal contamination.
- the liquid crystal display can be suitably used for manufacturing a liquid crystal display element with little color unevenness.
- the lower limit is 100M _ 1 molar absorption light coefficient at 350nm measured at in Asetonitoriru 'cm _1
- 60% by mole or more of the reactive functional groups contained in the molecule contains a curable resin that is a (meth) atalyloyl group. Therefore, it is one of the sealing agent patterns formed on the transparent substrate. Part force Even if it is formed in a position where it overlaps the thickness direction of the liquid crystal cell with black matrix (BM) or wiring, etc., it may be hardened by irradiating with ultraviolet rays.
- BM black matrix
- the sealing agent of the second aspect of the present invention can be particularly suitably used when a liquid crystal display panel is manufactured with a narrow frame design.
- a vertical conduction material By adding conductive fine particles to the sealing agent of the first invention or the sealing agent of the second invention, a vertical conduction material can be produced. If such a vertical conduction material is used, even if there is a portion that is not directly irradiated with light such as ultraviolet rays, the electrodes can be sufficiently conductively connected.
- the vertical conduction material containing the sealing agent of the first invention or the sealing agent of the second invention and conductive fine particles is also one aspect of the invention.
- the conductive fine particles are not particularly limited, and metal balls, those obtained by forming a conductive metal layer on the surface of resin fine particles, and the like can be used. Among them, the one in which the conductive metal layer is formed on the surface of the fine resin particles is preferable because conductive connection is possible without damaging the transparent substrate due to the excellent elasticity of the fine resin particles.
- the method for producing a liquid crystal display device using the sealing agent of the first invention or the sealing agent of the second invention and Z or the upper and lower conductive material of the invention is not particularly limited.
- one of two transparent substrates with electrodes such as an ITO thin film, is screen-printed or dispensed with the sealant of the first invention or the sealant of the second invention and / or the vertical conduction material of the invention.
- a rectangular seal pattern is formed by coating or the like.
- fine droplets of liquid crystal are applied to the entire surface of the transparent substrate in an uncured state with the sealant uncured, and the other transparent substrate is immediately overlaid and cured by irradiating the seal with ultraviolet light.
- the sealant of the first invention or the sealant of the second invention has thermosetting properties, it is further cured by heating in an oven at 100 to 200 ° C. for 1 hour to complete the curing.
- a liquid crystal display element is manufactured.
- the liquid crystal display element using the sealing agent of the first invention or the sealing agent of the second invention and / or the upper / lower conductive material of the invention is also one aspect of the invention.
- the method for producing a liquid crystal display element of the present invention that is, at least one of the two transparent substrates with electrodes, the sealing agent of the first invention or the sealing agent of the second invention and / or the present invention.
- the step of applying a vertical conductive material of the present invention to form a seal pattern, the sealing agent of the first invention or the sealing agent of the second invention and / or the vertical conductive material of the invention is in an uncured state. Apply fine droplets to the entire surface of the transparent substrate and immediately apply the other
- a method for producing a liquid crystal display element comprising the steps of stacking the transparent substrates and irradiating the seal part with ultraviolet rays to cure the liquid crystal display element is also one aspect of the present invention.
- liquid crystal display element in the production of a liquid crystal display element, the adhesiveness to the substrate is excellent, and therefore, the phenomenon of peeling between the substrate and the liquid crystal is difficult to occur, and liquid crystal contamination is not caused. ⁇ Less color unevenness! /
- liquid crystal dropping method sealant which is optimal for the production of liquid crystal display elements, and in the production of liquid crystal display elements by the dripping method, there are places where light is not directly irradiated. Liquid crystal display element sealant, vertical conduction material, and liquid crystal display element using them can be sufficiently cured, and can realize high display quality and high reliability of the liquid crystal display element. Can be provided.
- the partial force of the sealant pattern formed on the transparent substrate using the sealant of the second invention is formed at a position where it overlaps the black matrix (BM), wiring, etc. in the thickness direction of the liquid crystal cell. Even if light is not directly irradiated, it can be cured by irradiating ultraviolet rays so that the ultraviolet rays wrap around the back side of BM or the like.
- a sealing agent of the second present invention can be particularly suitably used when a liquid crystal display panel is manufactured with a narrow frame design.
- the mixture was heated to 0 ° C and stirred for 5 hours.
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (A) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (made by Ajinomoto Fine Technone Earth, VDH) After stirring with the apparatus, the mixture was uniformly dispersed with a ceramic three roll to obtain sealant A.
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1 15 parts by weight
- thermosetting agent made by Ajinomoto Fine Technone Earth, VDH
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (B) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (Ajinomoto Fine Technone Earth Co., Ltd., VDH) was mixed with 3.5 parts by weight, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant B .
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1 15 parts by weight
- thermosetting agent
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (C) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (Ajinomoto Fine Technone Earth Co., Ltd., VDH) was mixed with 3.5 parts by weight, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant B .
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1 15 parts by weight
- thermosetting agent
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (D) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (Ajinomoto Fine Technone Earth Co., Ltd., VDH) was mixed with 3.5 parts by weight, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant D .
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1 15 parts by weight
- thermosetting agent
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (E) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (made by Ajinomoto Fine Technone Earth, VDH) After stirring with the apparatus, the mixture was uniformly dispersed with a three-roll ceramic roll to obtain sealant E.
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1 15 parts by weight
- thermosetting agent made by Ajinomoto Fine Technone Earth, VDH
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (F) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (Ajinomoto Fine Technone clay, VDH) was mixed with 3.5 parts by weight, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant F .
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1
- thermosetting agent Aljinomoto Fine Technone
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Synthesized curable resin (G) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3 700) 10 Parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (Ajinomoto Fine Technone Earth Co., Ltd., VDH) was mixed with 3.5 parts by weight, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant G .
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1 15 parts by weight
- thermosetting agent
- Photopolymerization initiator made by Light Chemical Co., KR-02 3 parts by weight, synthesized curable resin (H) 20 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB 3700) 10 parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and And thermosetting agent (Ajinomoto Fine Technone Earth Co., Ltd., VDH) was mixed with 3.5 parts by weight, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant H
- Photopolymerization initiator (manufactured by Light Chemical Co., KR-02) 3 parts by weight, epoxy tartrate having a long chain methylene group (Daicel Cytec Co., Ltd., KRM7856) 20 parts by weight, bisphenol A type epoxy attalate resin ( Daicel's UCB Co., Ltd., EB3700) 10 parts by weight, synthesized curable resin (I) 30 parts by weight, silane coupling agent (Shin-Etsu Co., Ltd., KBM403 ) 1 part by weight, silica (manufactured by Admatechs, SO-C1) 15 parts by weight, and thermosetting agent (manufactured by Otsuka Chemical Co., Ltd., adipic acid dihydrazide) After stirring, a sealing agent I was obtained by uniformly dispersing with a ceramic three roll.
- Photopolymerization initiator (Light Chemical Co., KR-02) 3 parts by weight, Epoxyatalylate having a long chain methylene group (Daicel Cytec Co., Ltd., KRM7856) 30 parts by weight, synthesized curable resin (I) 30 1 part by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403), 15 parts by weight of silica (manufactured by Admatechs, SO-C1), and thermosetting agent (manufactured by Otsuka Chemical Co., Ltd. (Acid dihydrazide) 3.5 parts by weight were mixed and stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three-roll to obtain before sealing.
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1
- thermosetting agent manufactured by Otsuk
- Photopolymerization initiator (Right Chemical Co., KR-02) 3 parts by weight, Epoxyatalylate having a long chain methylene group (Daicel Cytec Co., Ltd., KRM7856) 40 parts by weight, synthesized curable resin (I) 20 1 part by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403), 15 parts by weight of silica (manufactured by Admatechs, SO-C1), and thermosetting agent (manufactured by Otsuka Chemical Co., Ltd. Acid dihydrazide) 2. 3 parts by weight were blended, stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant K.
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1
- thermosetting agent manufactured by Otsuka Chemical
- Photopolymerization initiator made by Light Chemical Co., KR-02 3 parts by weight, bisphenol A type epoxy acrylate resin (Daicel Cytec, EB3700) 30 parts by weight, synthesized curable resin (I) 30 parts by weight 1 part by weight of silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403), 15 parts by weight of silica (manufactured by Admatechs, SO-C1), and thermosetting agent (manufactured by Otsuka Chemical Co., Ltd., dihydrazide adipate) 3) 5 parts by weight were blended and stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant L.
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica manufactured by Admatechs, SO-C1
- thermosetting agent manufactured by Otsuka Chemical Co., Ltd
- Photopolymerization initiator made by Light Chemical Co., KR-02 3 parts by weight, synthesized epoxy atallate (A) 60 parts by weight, silane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., KBM403) 1 part by weight, silica (Admatechs, SO-C1) 15 parts by weight and thermosetting agent (Otsuka Chemical Co., Ltd. (Acidic acid dihydrazide) 3.5 parts by weight were mixed and stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to obtain sealant M.
- silane coupling agent manufactured by Shin-Etsu Chemical Co., Ltd., KBM403
- silica Admatechs, SO-C1
- thermosetting agent Olsuka Chemical Co., Ltd. (Acidic acid dihydrazide) 3.5 parts by weight were mixed and stirred with a planetary stirrer, and then uniformly dispersed with a ceramic three roll to
- Spacer fine particles (Sekisui Chemical Co., Ltd. Micronol SI-H050, 5 / zm) 1 part by weight are dispersed in 100 parts by weight of each obtained sealing agent, and centrifugal defoamer (Atron-1) And then applied as a sealant for the liquid crystal dropping method with a dispenser so that the line width of the sealant was 1 mm on one of the two alignment films and the substrate with a transparent electrode.
- liquid crystal alignment disorder in the vicinity of the sealant immediately after the production of the display panel was visually confirmed.
- the alignment disorder was judged from the color unevenness of the display part, and the evaluation was performed according to the following four levels according to the degree of color unevenness. Results in Table 1 Indicated. Note that the liquid crystal panels with ⁇ ⁇ and ⁇ ⁇ are at a level that has no problem in practical use. ⁇ : No color unevenness
- a glass substrate 13 As shown in FIG. 1, on a glass substrate 13 (90 mm ⁇ 90 mm), 30 mm from the end, the inner side is 30 mm.
- a glass substrate 11 (70 mm ⁇ 70 mm) on which polyimide, ITO, chromium, resin black matrix, and carbon were respectively formed was laminated and bonded together under vacuum.
- Ultraviolet rays (lOOmWZ cm 2 , 3000 mJ) were irradiated, followed by heating at 120 ° C. for 1 hour to cure the sealant and obtain an adhesion test piece.
- the peeling state was shown as “peeling A” when the glass substrate-film was peeled, and “peeling B” when the glass substrate-glass substrate was peeled off.
- EX- 201 (resorcinol type epoxy resin) 120g of toluene is dissolved in 500mL of toluene. Triphenylphosphine (0.1 lg) was added thereto to obtain a uniform solution. To this solution, 70 g of acrylic acid was added dropwise over 2 hours with stirring under reflux, followed by further stirring under reflux for 8 hours.
- the prepared sealing agent was applied to a black matrix (BM) and a substrate with a transparent electrode with a dispenser so as to draw a rectangular frame.
- BM black matrix
- a dispenser so as to draw a rectangular frame.
- a small drop of liquid crystal (Chisso; JC-5004LA) onto the entire surface of the transparent substrate frame, immediately stack another substrate with a transparent electrode (without BM), and seal from the substrate side with BM.
- a high pressure mercury lamp was used to irradiate ultraviolet rays at 50 mWZcm 2 for 20 seconds.
- the line width of the squeezed sealant was about 1.2 mm, and 0.3 mm was drawn so as to overlap with BM.
- the liquid crystal display panel was manufactured by performing a liquid crystal display at 120 ° C. for 1 hour and simultaneously thermosetting the sealant.
- EX-201 modified product 80 parts by weight, Epicoat 828 (manufactured by Japan Epoxy Resin) 20 parts by weight, Irgacure 651 (manufactured by Ciba Specialty Chemicals) 2 parts by weight, Amicure V DH-J (manufactured by Ajinomoto Fine Technone Earth) ) 10 parts by weight, KBM403 (manufactured by Shin-Etsu Chemical Co., Ltd.) 3 parts by weight, and SO-C1 (manufactured by Admatechs) 30 parts by weight using a planetary stirrer (Awatori Kentaro: manufactured by Sinky) After mixing, a sealant was prepared by further mixing using three rolls. A liquid crystal display panel was produced in the same manner as in Example 12 except that the sealant according to Example 13 thus prepared was used.
- EX-201 modified product 100 parts by weight, Irgacure 651 (manufactured by Chinoku Specialty Chemicals) 2 parts by weight, Amicure VDH-J (manufactured by Ajinomoto Fine Technone Earth) 10 parts by weight, KBM403 (manufactured by Shinetsu Igaku Co., Ltd.) ) 3 parts by weight and 30 parts by weight of SO-C1 (manufactured by Admatechs) are mixed using a planetary stirrer (Awatori Nerita: manufactured by Sinky Corporation), and further mixed using three rolls. Thus, a sealant was prepared.
- Irgacure 651 manufactured by Chinoku Specialty Chemicals
- Amicure VDH-J manufactured by Ajinomoto Fine Technone Earth
- KBM403 manufactured by Shinetsu Igaku Co., Ltd.
- SO-C1 manufactured by Admatechs
- Example 12 Thereafter, a liquid crystal display panel was produced in the same manner as in Example 12 except that the prepared sealant according to Example 14 was used.
- EX-201 modified product 80 parts by weight, Epicoat 828 (made by Japan Epoxy Resin) 20 parts by weight, Irgacure 819 (made by Ciba Specialty Chemicals) 2 parts by weight, Amicure V DH-J (made by Ajinomoto Fine Technone Earth) ) 10 parts by weight, KBM403 (manufactured by Shin-Etsu University) 3 parts by weight And after mixing 30 parts by weight of SO-CI (manufactured by Admatechs) using a planetary stirrer (manufactured by Awatori Netaro: manufactured by Sinky), the mixture is further mixed using three rolls to obtain a sealing agent. Prepared.
- a liquid crystal display panel was produced in the same manner as in Example 12 except that the sealant according to Example 16 thus prepared was used.
- EX-201 modified product 80 parts by weight, Epicoat 828 (manufactured by Japan Epoxy Resin Co., Ltd.) 20 parts by weight, Irgacure 2959 (manufactured by Ciba Specialty Chemicals) 2 parts by weight, Amicure V DH-J (manufactured by Ajinomoto Fine Technone Earth) ) 10 parts by weight, KBM403 (manufactured by Shin-Etsu Chemical Co., Ltd.) 3 parts by weight, and SO-C1 (manufactured by Admatechs) 30 parts by weight using a planetary stirrer (Awatori Kentaro: manufactured by Sinky) After mixing, a sealant was prepared by further mixing using three rolls.
- Epicoat 828 manufactured by Japan Epoxy Resin Co., Ltd.
- Irgacure 2959 manufactured by Ciba Specialty Chemicals
- Amicure V DH-J manufactured by Ajinomoto Fine Technone Earth
- KBM403 manufactured
- a liquid crystal display panel was produced in the same manner as in Example 12 except that the prepared sealant according to Comparative Example 3 was used.
- Epicoat 828 manufactured by Japan Epoxy Resin Co., Ltd.
- Irgacure 651 manufactured by Ciba Specialty Chemicals
- Amicure V DH-J manufactured by Ajinomoto Fine Technone Earth
- KBM403 manufactured by
- a liquid crystal display panel was produced in the same manner as in Example 12 except that the sealant according to Comparative Example 4 prepared was used.
- the substrates 1 and 2 were broken using a cutter, and directly irradiated with the UV direct irradiation part (place 1) by microscopic IR method. Measure the spectrum of the sealant at a point 100 ⁇ m away (location 2), 200 ⁇ m away (location 3), and 300 ⁇ m away (location 4). From this, the conversion rate of the acrylic functional group in the sealant was determined (Fig. 3 (c)).
- the peak area of 810 m_1 was used for the quantitative determination of the acrylic functional group.
- liquid crystal dripping method which is optimal for the production of liquid crystal display elements, and liquid crystal display elements produced by the dripping method, light is not directly irradiated.
- Liquid crystal dripping method that can be sufficiently cured even if there are spots, and that can realize high display quality and high reliability of liquid crystal display elements in which the liquid crystal is not deteriorated by the ultraviolet rays irradiated during curing. Sealing agent, vertical conduction material, and a liquid crystal display element using these can be provided.
- FIG. 1 is an explanatory diagram showing a method for evaluating liquid crystal display devices manufactured in Examples 1 to 11 and Comparative Examples 1 and 2.
- FIG. 2 is a cross-sectional view schematically showing an example of a liquid crystal display element.
- FIG. 3 is an explanatory view for explaining a method for measuring the attalyloyl group conversion rate under the pattern after UV irradiation of the sealing agents obtained in Examples 12 to 17 and Comparative Examples 3 to 4. Explanation of symbols
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020097015593A KR101050702B1 (ko) | 2005-05-09 | 2006-05-08 | 액정 적하 공법용 시일제, 상하 도통 재료 및 액정 표시 소자 |
US11/920,060 US20090061117A1 (en) | 2005-05-09 | 2006-05-08 | Sealant for one drop fill process, vertically conducting material and liquid crystal display device |
CN2006800160748A CN101176033B (zh) | 2005-05-09 | 2006-05-08 | 液晶滴加工序用密封剂、上下导通材料及液晶显示元件 |
KR1020077028602A KR100926926B1 (ko) | 2005-05-09 | 2006-05-08 | 액정 적하 공법용 시일제, 상하 도통 재료 및 액정 표시소자 |
Applications Claiming Priority (4)
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JP2005136686A JP5368666B2 (ja) | 2005-05-09 | 2005-05-09 | 液晶表示素子の製造方法 |
JP2005-136686 | 2005-05-09 | ||
JP2005-198138 | 2005-07-06 | ||
JP2005198138 | 2005-07-06 |
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WO2006120998A1 true WO2006120998A1 (ja) | 2006-11-16 |
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US (1) | US20090061117A1 (ja) |
KR (2) | KR101050702B1 (ja) |
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TW (1) | TWI437333B (ja) |
WO (1) | WO2006120998A1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008029893A1 (fr) * | 2006-09-07 | 2008-03-13 | Mitsui Chemicals, Inc. | Agent d'étanchéité pour cristaux liquides, procédé de fabrication de panneau d'affichage à cristaux liquides utilisant l'agent d'étanchéité pour cristaux liquides, et panneau d'affichage à cristaux liquides |
CN101338177B (zh) * | 2007-07-06 | 2012-07-11 | 三井化学株式会社 | 液晶密封剂、其使用的(甲基)丙烯酸酯化合物及其制造方法 |
WO2013058324A1 (ja) * | 2011-10-20 | 2013-04-25 | 積水化学工業株式会社 | 液晶滴下工法用シール剤、上下導通材料、及び、液晶表示素子 |
WO2017038611A1 (ja) * | 2015-09-02 | 2017-03-09 | 積水化学工業株式会社 | 液晶表示素子用シール剤、上下導通材料、及び、液晶表示素子 |
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WO2008029893A1 (fr) * | 2006-09-07 | 2008-03-13 | Mitsui Chemicals, Inc. | Agent d'étanchéité pour cristaux liquides, procédé de fabrication de panneau d'affichage à cristaux liquides utilisant l'agent d'étanchéité pour cristaux liquides, et panneau d'affichage à cristaux liquides |
CN101338177B (zh) * | 2007-07-06 | 2012-07-11 | 三井化学株式会社 | 液晶密封剂、其使用的(甲基)丙烯酸酯化合物及其制造方法 |
WO2013058324A1 (ja) * | 2011-10-20 | 2013-04-25 | 積水化学工業株式会社 | 液晶滴下工法用シール剤、上下導通材料、及び、液晶表示素子 |
JP5255732B1 (ja) * | 2011-10-20 | 2013-08-07 | 積水化学工業株式会社 | 液晶滴下工法用シール剤、上下導通材料、及び、液晶表示素子 |
WO2017038611A1 (ja) * | 2015-09-02 | 2017-03-09 | 積水化学工業株式会社 | 液晶表示素子用シール剤、上下導通材料、及び、液晶表示素子 |
JP6097454B1 (ja) * | 2015-09-02 | 2017-03-15 | 積水化学工業株式会社 | 液晶表示素子用シール剤、上下導通材料、及び、液晶表示素子 |
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Also Published As
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CN101176033B (zh) | 2010-05-26 |
KR20090087970A (ko) | 2009-08-18 |
KR100926926B1 (ko) | 2009-11-17 |
US20090061117A1 (en) | 2009-03-05 |
TW200708865A (en) | 2007-03-01 |
TWI437333B (zh) | 2014-05-11 |
CN101176033A (zh) | 2008-05-07 |
KR101050702B1 (ko) | 2011-07-20 |
KR20080016833A (ko) | 2008-02-22 |
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