WO2006011384A1 - 熱可塑性樹脂組成物 - Google Patents
熱可塑性樹脂組成物 Download PDFInfo
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- WO2006011384A1 WO2006011384A1 PCT/JP2005/013166 JP2005013166W WO2006011384A1 WO 2006011384 A1 WO2006011384 A1 WO 2006011384A1 JP 2005013166 W JP2005013166 W JP 2005013166W WO 2006011384 A1 WO2006011384 A1 WO 2006011384A1
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/12—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polysiloxanes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/442—Block-or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L101/00—Compositions of unspecified macromolecular compounds
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C08L51/085—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds on to polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08L79/085—Unsaturated polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
Definitions
- the present invention relates to a polyorganosiloxane-containing graft copolymer and a thermoplastic resin that have excellent powder characteristics and can greatly improve the mold release and sliding properties during the molding of thermoplastic resin.
- the present invention relates to a thermoplastic resin composition comprising fat.
- thermoplastic resin blended with inorganic fillers such as thermoplastic resin or glass fiber lacks flexibility.
- a molded product after injection molding is separated from the mold. It is difficult to mold, and in extreme cases, it may be damaged during mold release.
- Conventionally, as a method for improving the releasability of these thermoplastic rosins there has been generally used a method in which a fatty acid or a metal salt thereof, a lubricant such as a wax or higher alcohol, or a release agent such as silicone oil is added to the rosin. (For example, see Non-Patent Document 1).
- the lubricant is mainly intended to reduce friction between pellets or improve the thermal stability of the resin, and at the same time, it acts as a mold release agent. At the same time, a great effect cannot be expected, and a large amount of lubricant must be added to improve the releasability. Molded products obtained from the blend have problems such as significant loss of mechanical properties, poor appearance due to the generation of decomposition gas when molded at high temperature, and further, the mold release effect is diminished due to decomposition of the compounding ingredients. there were.
- thermoplastic resin is widely used in various fields such as AV equipment such as video decks and DVD players, and OA equipment such as printers and copying machines.
- One of the required properties of these molded products is slidability.
- thermoplastic resin is used alone, the sliding property is unsatisfactory or further improvement is desired.
- chemical and physical properties have been added to thermoplastic resin.
- a silicone oil which is a lubricant and a release agent having excellent mechanical stability
- Non-Patent Document 1 Seiichi Honma, Polycarbonate Liquor Handbook, Nikkan Kogyo Shimbun, 1 August 992 28 0, p. 155- 156
- Non-Patent Document 2 Kunio Ito, Silicone Handbook, Nikkan Kogyo Shimbun, August 31, 1990, p. 153-154
- the present invention solves the above-mentioned problems and provides a thermoplastic resin composition that is excellent in releasability during molding, surface appearance of a molded product, and sliding properties.
- polyorganosiloxane (A) is combined with 60 to 90 parts by weight of beryl monomer (B) 40 to LO part by weight ((A) and (B). 100% by weight), a graft ratio of less than 1% and a methylethylketone insoluble content of 3% by weight or less.
- B beryl monomer
- B LO part by weight
- C A thermoplastic resin composition having excellent release properties and sliding properties, comprising 0.01 to 5% by weight and thermoplastic resin (D) 99.99 to 95% by weight (Claim 1).
- the vinyl monomer (B) is an aromatic vinyl monomer, a vinyl cyanide monomer, a (meth) acrylate ester monomer, a carboxyl group-containing vinyl monomer, and a maleimide.
- the polyorganosiloxane-containing graft copolymer of the present invention is excellent in powder characteristics, and a resin composition in which the copolymer is blended with a thermoplastic resin has mold release properties during molding and molding. Excellent body surface appearance and slidability.
- the polyorganosiloxane-containing graft copolymer (C) of the present invention comprises 40 to 90 parts by weight of a vinyl monomer (B) in the presence of 60 to 90 parts by weight of a polyorganosiloxane (A) ( A) and (B) are combined to obtain 100 parts by weight).
- the organosiloxane (A) used in the present invention has a general formula R SiO (wherein R is a substituted m (4-m) / 2
- m represents an integer of 0 to 3, and has a linear, branched, or cyclic structure.
- An organosiloxane having a cyclic structure is preferred.
- Examples of the substituted or unsubstituted monovalent hydrocarbon group possessed by this organosiloxane include, for example, methyl group, ethyl group, propyl group, and phenol.
- organosiloxane examples include hexamethylcyclotrisiloxane (D3), otamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6),
- cyclic compounds such as trimethyltriphenylcyclotrisiloxane
- linear or branched organosiloxanes can be mentioned. These organosiloxanes can be used alone or in combination of two or more.
- a graft crossing agent is used, and if necessary, a crosslinking agent is used.
- a compound containing a hydrolyzable silicon group and a radical reactive group such as a polymerizable unsaturated bond is preferred.
- a so-called bifunctional mercaptosilane compound having two alkoxy groups or a bifunctional methacryloxysilane compound is preferable.
- a bifunctional methacryloxysilane compound is particularly preferable.
- Examples of the bifunctional mercaptosilane compound include ⁇ -mercaptopropylmethyldimethoxysilane, and examples of the bifunctional methacryloxysilane compound include ⁇ -metataloxypropylalkyldialkoxysilane. .
- the amount of the grafting agent used is preferably 0.01 to 0.4% by weight, for example, in terms of releasability and slidability, where the total of organosiloxane and grafting agent is 100% by weight. . More preferably ⁇ or 0. 03-0. 35 weight 0/0, particularly preferably ⁇ or 0. 04-0. 3 wt 0/0. From the viewpoint of slidability, it is most preferably 0.05 to 0.25% by weight.
- the amount of the grafting agent used is less than 0.01% by weight, it tends to be difficult to obtain the polyorganosiloxane-containing draft copolymer (C) in a powder state, and the amount of the grafting agent used is small. If the amount increases, for example, if it exceeds 0.4% by weight, the effect of improving the releasability, slidability and impact properties tends to decrease.
- the compound exemplified as the graft crossing agent is V, which is a bifunctional compound having two hydrolyzable groups, and these are particularly preferable.
- V a bifunctional compound having two hydrolyzable groups
- 3 or 4 functional compounds having 4 carohydrolyzable groups in one molecule can be used, but tri- or tetrafunctional compounds should be classified separately as crosslinking agents. You can also.
- These compounds include, for example, trifunctional crosslinking agents such as methyltrimethoxysilane, phenoltrimethoxysilane, and ethyltriethoxysilane, tetraethoxysilane, and 1,3bis [2- (dimethoxymethylsilyl) ethyl].
- trifunctional crosslinking agents such as methyltrimethoxysilane, phenoltrimethoxysilane, and ethyltriethoxysilane, tetraethoxysilane, and 1,3bis [2- (dimethoxymethylsilyl) ethyl].
- the addition amount thereof is, for example, to polyorganosiloxane ( ⁇ ⁇ ). 1% by weight or less, preferably 0.3% by weight or less, can be used. If it exceeds 1% by weight, the flexibility of the polyorganosiloxane (A) is impaired, and the effect of improving the releasability and sliding property tends to decrease. In order to maintain the graft ratio or insoluble characteristics of the present application, it is easier to maintain the characteristics without using a crosslinking agent.
- the polyorganosiloxane (A) content in the polyorganosiloxane-containing graft copolymer (C) of the present invention is preferably 60 to 90 parts by weight. Further, from the viewpoint of releasability, 65 to 85 parts by weight is preferable, and 70 to 85 parts by weight is more preferable. From the viewpoint of slidability, the amount of polyorganosiloxane (A) is 60 parts by weight as the lower limit, preferably 63 parts by weight, more preferably 65 parts by weight, especially 67 parts by weight, most preferably 70 parts by weight. .
- the upper limit amount of the polyorganosiloxane (A) is 90 parts by weight, preferably 87 parts by weight, more preferably 85 parts by weight, particularly 84 parts by weight, and most preferably 80 parts by weight. If the amount of polyorganosiloxane (A) is less than 60 parts by weight, the effect of improving releasability, slidability and impact resistance tends to be reduced, and conversely if it exceeds 90 parts by weight, the polyorganosiloxane-containing graft copolymer It tends to be difficult to obtain (C) in a powder state.
- the polyorganosiloxane (A) in the polyorganosiloxane-containing graft copolymer (C) of the present invention is prepared by the method described in US Pat. Nos. 2891920, 3294725, etc.
- the graft crossing agent are preferably produced by emulsion polymerization in the presence of an emulsifier such as alkylbenzene sulfonic acid in water by high-speed shearing using a high-speed stirrer such as a homogenizer and then emulsion polymerization. .
- Alkyl benzene sulfonic acid is suitable because it acts as an emulsifying agent for emulsion polymerization of polyorganosiloxane and also serves as a polymerization initiator.
- the amount of the emulsifier used is usually in the range of about 0.1 to LO weight percent, preferably about 0.3 to 5 weight percent with respect to the total amount of the organosiloxane and the grafting agent.
- the polymerization temperature is usually in the range of about 5 to 100 ° C.
- the bulle monomer (B) in the polyorganosiloxane-containing graft copolymer (C) of the present invention is a phase between the polyorganosiloxane-containing graft copolymer (C) and the thermoplastic resin (D). Ensures solubility and graft copolymer containing polyorganosiloxane to thermoplastic resin (D) It is a component used to uniformly disperse the body (c).
- bure monomer (B) examples include: (i) aromatic beer such as styrene, ⁇ -methylstyrene, p-methylstyrene, ⁇ -butylstyrene, chlorostyrene, bromostyrene, etc.
- Cyanide butyl monomers such as acrylonitrile and meta-tali-tolyl, (iii) methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, 2-ethyl acrylate (Meth) acrylate esters such as xylyl, glycidyl acrylate, hydroxyethyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, lauryl methacrylate, glycidyl methacrylate, hydroxyethyl methacrylate Body, (iv) Itaconic acid, (meth) acrylic acid, fumaric acid, maleic acid etc.
- Monomers such as (V) maleimide, N-methylmaleimide, N-ethylmaleimide, N-propylmaleimide, N-butylmaleimide, N-phenolmaleimide, N- (p-methylphenol) maleimide Examples include masses.
- the amount of the butyl monomer (B) used in the polyorganosiloxane-containing graft copolymer (C) of the present invention is 10 to 40 parts by weight, and preferably 15 to 35 in terms of releasability. Parts by weight, more preferably 15 to 30 parts by weight. From the viewpoint of slidability, the lower limit is preferably 13 parts by weight, more preferably 15 parts by weight, particularly 16 parts by weight, and most preferably 20 parts by weight. From the viewpoint of slidability, the upper limit is preferably 37 parts by weight, more preferably 35 parts by weight, particularly 33 parts by weight, and most preferably 30 parts by weight.
- the amount of the vinyl monomer (B) used is less than 10 parts by weight, it tends to be difficult to obtain the polyorganosiloxane-containing graft copolymer (C) in a powder form, and it exceeds 40 parts by weight. And, there is a tendency that the effect of improving the releasability, slidability, and impact properties is lowered.
- the polyorganosiloxane-containing graft copolymer (C) of the present invention is obtained by polymerizing the vinyl monomer (B) in the presence of the polyorganosiloxane (A) ( The polymerization at this time can be obtained by ordinary emulsion polymerization.
- Graft copolymer obtained by emulsion polymerization (C) Latex force As a method for separating the polymer, for example, (i) alkaline earth metal salt such as calcium salt, calcium chloride, magnesium sulfate, etc.
- alkali metal salts such as sodium chloride and sodium sulfate
- inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid
- adding organic acids such as acetic acid to coagulate latex.
- dehydrating and drying In addition, freezing and solidification methods and spray drying methods can also be used.
- the obtained polyorganosiloxane-containing graft copolymer (C) has a graft ratio of less than 1%, preferably 0.5% or less. If the graft ratio is 1% or more, the effect of improving the releasability and slidability tends to decrease.
- the graft ratio (%) of the polyorganosiloxane-containing draft copolymer (C) in the present invention can be determined by the following formula.
- Graft rate ((weight of acetone-insoluble sample (g) —sample collected (g) X (polyorganosiloxane (A) number of charged parts ZlOO)) Z (sample collected (g) X (polyorganosiloxane (A)) Number of copies ZlOO)) X 100
- the polyorganosiloxane-containing graft copolymer (C) obtained in the present invention has an insoluble content in methylethylketone of 3% by weight or less, preferably 2.5% by weight or less, more preferably 2.2% by weight. It is as follows. When the methyl ethyl ketone insoluble content exceeds 3% by weight, the effect of improving the releasability and sliding property tends to be lowered.
- thermoplastic resin (D) of the present invention does not contain a rubber component in the case of improving the releasability!
- thermoplastic resins include polystyrene (PS), styrene-acrylonitrile copolymer (AS), styrene-methyl methacrylate copolymer (MS), polycarbonate, polyamide, polybutylene terephthalate, polyethylene. Examples include terephthalate. These may be used alone or in combination of two or more.
- thermoplastic resin blended with an inorganic filler such as glass fiber include polystyrene (PS), styrene-acrylonitrile copolymer (AS), and styrene-methyl methacrylate copolymer.
- thermoplastic resin impact-resistant polystyrene (HIPS), styrene-butadiene-acrylonitrile copolymer power ABS resin, Part or most of the styrene of ABS resin is ⁇ -methylstyrene or maleimide Heat-resisting ABS resin replaced with a rubber resin such as (heat-resistant) AES resin or (heat-resistant) AAS resin in which the butadiene is replaced with ethylene-propylene rubber or polybutyl acrylate. Is given.
- HIPS impact-resistant polystyrene
- HIPS impact-resistant polystyrene
- styrene-butadiene-acrylonitrile copolymer power ABS resin Part or most of the styrene of ABS resin is ⁇ -methylstyrene or maleimide
- Heat-resisting ABS resin replaced with a rubber resin such as (heat-resistant) AES resin or (heat-resistant) AAS resin in which the buta
- thermoplastic resin and inorganic fillers can be used in combination.
- Inorganic fillers include fibrous ones and granular and powdery ones.
- fibrous filler include glass fiber, carbon fiber, whisker, My strength, and the like.
- granular and powdery fillers include, for example, talc, silica, my strength, calcium sulfate, calcium carbonate, magnesium carbonate, barium carbonate, magnesium sulfate, barium sulfate, kaolin, glass powder, glass flakes, glass beads, etc. Can be given. These can be used alone or in combination of two or more.
- the blending amount of the thermoplastic resin (D) and the polyorganosiloxane-containing graft copolymer (C) is 99.99 to 97% by weight of the thermoplastic resin (D) from the viewpoint of releasability. It is preferable to blend polyorganosiloxane-containing graft copolymer (C) O. 01 to 3% by weight, further (D) 99.99 to 99 parts by weight, and (C) O. 01 to 1% by weight.
- the thermoplastic resin (D) of the present invention when improved in slidability, is polystyrene (PS), impact-resistant polystyrene (HIPS), styrene-acrylonitrile copolymer (AS), styrene-butadiene.
- PS polystyrene
- HIPS impact-resistant polystyrene
- AS styrene-acrylonitrile copolymer
- styrene-butadiene —Acrylic nitrile copolymer power ABS resin, heat-resistant ABS resin in which a part or most of the styrene of the ABS resin is replaced with a-methylstyrene or maleimide, etc., and the butadiene is replaced with ethylene propylene rubber or polybutyl acrylate.
- the polyorganosiloxane-containing graft copolymer (C) to the thermoplastic rosin (D) The blending amount of the thermoplastic resin (D) is 99.99 to 95% by weight, the polyorganosiloxane-containing graft copolymer (C) O. 01 to 5% by weight, in addition to slidability.
- the (D) 99. 99 ⁇ 96. 5 wt%, (C) O. 01-3. 5 % by weight strength also when also considering the surface of releasability is particularly (D) 99. 99 ⁇ 97 weight 0/0 preferably, (C) O. 01 ⁇ 3 weight 0/0.
- the blending amount of the polyorganosiloxane-containing graft copolymer (C) is less than 0.01% by weight, the effect of improving the slidability tends to decrease, and if it exceeds 5% by weight, the effect of improvement tends to be saturated. It is not preferable.
- the dynamic friction coefficient indicating the slidability of the molded article obtained from the thermoplastic resin composition of the present invention is preferably 0.22 or less, more preferably 0.20 or less, and particularly preferably 0.18. The following is preferred. If the coefficient of dynamic friction exceeds 0.22, the slidability is inferior.
- thermoplastic resin (D) and the polyorganosiloxane-containing graft copolymer (C) are mixed with a Henschel mixer, a ribbon blender, a super floater, etc., and then rolled, single-screw extruder, 2 It can be carried out by kneading with a melt kneader such as a shaft extruder or a kneader.
- a molding method used for molding a normal thermoplastic resin composition that is, an injection molding method, an extrusion molding method, a blow molding method, a calendar molding method, or the like is applied. can do.
- volume average particle diameter The volume average particle diameter of the obtained polyorganosiloxane particles was measured in a latex state. Using LECR & NORTHRUP INSTRUMENTS MICROT RAC UPA as a measuring device, the volume average particle diameter ( ⁇ m) was measured by the light scattering method.
- a good powder having a sticky feeling on the powder surface was obtained.
- the resulting polyorganosiloxane-containing graft copolymer powder is accurately weighed in about 1 g, dissolved in 100 ml of acetone, and using a shaker (SR-11, Taiyo Kagaku Kogyo Co., Ltd.) at 1500 cpm for 2 hours at room temperature. Shake. This was centrifuged at 23 OOOrpm for 30 minutes using a centrifuge (Hitachi, SCP70H), and separated into acetone-insoluble and soluble components by decantation. The acetone insoluble matter was vacuum-dried at 70 ° C for 11 hours, and the weight was measured.
- SR-11 Taiyo Kagaku Kogyo Co., Ltd.
- the graft ratio (%) of the polyorganosiloxane-containing graft copolymer was determined by the following formula.
- Graft rate ((weight of acetone-insoluble sample (g) —sample collected (g) X (polyorganosiloxane (A) number of charged parts ZlOO)) Z (sample collected (g) X (polyorganosiloxane (A)) Number of copies ZlOO)) X 100
- methyl ethyl ketone insoluble matter 20 ml was added to the methyl ethyl ketone insoluble matter, and the mixture was separated into methyl ethyl ketone insoluble matter and soluble content by repeating centrifugation and decantation twice. The methyl ethyl ketone insoluble matter was dried at 60 ° C. for 10 hours and then weighed.
- Weight% of methyl ethyl ketone insoluble matter (Weight of methyl ethyl ketone insoluble matter ( g ) Z Sample collected (g)) X 100
- ASTM-1 dumbbell thickness 3mm
- mold temperature 40 ° C After molding with an injection speed of 25 mmZ seconds, injection time of 5 seconds, and cooling time of 25 seconds, a molded body is molded at an ejector forward speed of 50 mmZ seconds and an ejector forward position of 35 mm, and the ejector pin protrudes from the mold. The state where the molded body was released was observed.
- the ejector pins are arranged in two places so that the molded body can be easily released from the mold.
- the holding pressure If the holding pressure is low, the molded product can be easily separated from the mold force by the protrusion of the ejector pin. However, as the holding pressure is increased, the molded body becomes difficult to separate from the mold, and finally the mold force does not separate even if the ejector pin protrudes. Even if the ejector pin protrudes, the molded body is clearly separated from the mold by visual observation! / Retained pressure when it is in a state (hereinafter referred to as “holding pressure that is difficult to release”! Was measured. Then, the holding pressure, which is difficult to release, was compared between the resin composition containing the polyorganosiloxane-containing graft copolymer and the resin composition not mixed.
- the evaluation criteria for releasability are as follows.
- ⁇ The difference in holding pressure that is difficult to release is 200 kgZcm 2 f or more.
- ⁇ The difference in holding pressure that is difficult to release is 50 to 200 kg / cm 2 f.
- pellets 100 X 150mm, thickness 2mm are continuously molded from the pelletized resin composition using an injection molding machine (FANUC, FAS-100B) at a cylinder temperature of 240 ° C.
- FANUC, FAS-100B injection molding machine
- the surface friction tester manufactured by Shinto Kagaku Co., Ltd., HEIDON — 14D was used, and the contact was measured with the same material (10 X 10mm) at a load of 500g and 20mmZmin.
- Table 1 shows the polymerization compositions and volume average particle diameters of polyorganosiloxanes (A-1) to (A-7).
- Table 2 shows the monomer composition of polyorganosiloxane-containing graft copolymers (C-1) to (C-13), the polymerization conversion rate, the obtained powder characteristics, the graft rate, and the methyl ethyl ketone insoluble matter. [0064] [Table 2] Table 2
- Polystyrene PS Japan, HF-77: 99.9 parts by weight of thermoplastic resin (D-1) and 0.1 part by weight of polyorganosiloxane-containing graft copolymer (C-1)
- D-1 thermoplastic resin
- C-1 polyorganosiloxane-containing graft copolymer
- HV-40-28 bent type single screw extruder
- the obtained pellets were subjected to injection molding of ASTM-1 dumbbells (thickness 3 mm) using an injection molding machine (manufactured by FANUC, FAS-75D), and the mold release property was evaluated.
- the evaluation results are shown in Table 3.
- pellets were produced in the same manner as in Example 1 except that the composition ratio of the polyorganosiloxane-containing graft copolymer and thermoplastic resin was changed, and then injected. Molding was performed to evaluate releasability. The evaluation results are shown in Table 3.
- pellets were produced in the same manner as in Example 1 except that the composition ratio of the polyorganosiloxane-containing graft copolymer and thermoplastic resin was changed, and then injection molding was performed to release the mold. Sex evaluation was performed. The evaluation results are shown in Table 3.
- Comparative Example 4 As shown in Table 2, the evaluation of releasability due to poor powder characteristics of the polyorganosiloxane-containing graft copolymer (C-3) was strong.
- Styrene-methyl methacrylate copolymer manufactured by Nippon Steel Chemical Co., Ltd., Estyrene MS MS-600
- thermoplastic resin (D-2) thermoplastic resin (D-2)
- pellets were produced in the same manner as in Example 1. Evaluation of mold release in injection molding was performed. The results are shown in Table 4.
- Polystyrene was changed to polycarbonate (Idemitsu Petrochemical, FN2200A): Thermoplastic resin (D-3), pellets were produced at a cylinder temperature of 280 ° C in the same manner as in Example 1, and at a cylinder temperature of 280 ° C.
- the mold release was evaluated by injection molding. The results are shown in Table 5.
- Thermoplastic resin (D— 4) A 100-liter pressure polymerizer was charged with 200 parts by weight of pure water, the inside of the polymerizer was degassed and purged with nitrogen, and then 100 parts by weight of butadiene, 0.3 parts by weight of potassium rosinate, 0.1 parts by weight of sodium rosinate, carbonic acid Sodium 0.05 parts by weight and potassium persulfate 0.2 parts by weight were charged. The temperature was raised to 60 ° C. to initiate the polymerization, and the polymerization was terminated over 30 hours. The volume average particle diameter of the resulting gen rubber polymer latex was 0.23 m, and the polymerization conversion rate was 95%.
- the mixture was stirred at 65 ° C. for 2 hours to complete the polymerization, and a latex of a gen-based rubber-containing graft copolymer (d-1) was obtained.
- the polymerization conversion rate was 98%.
- thermoplastic resin (D-4) 99.7 parts by weight, polyorganosiloxane-containing graft copolymer (C 1) 0.3 parts by weight, Henschel mixer (manufactured by Rikita Co., Ltd., After blending with SMV-20) for 5 minutes, 20 parts by weight of glass fiber (manufactured by Nittobo, CS3PE-331) was added and blended by stirring for 30 seconds. Further, using a bent type single screw extruder (HV-40-28, manufactured by Tabata Co., Ltd.), melt kneading was performed at a cylinder set temperature of 250 ° C. to produce a resin composition pellet.
- HV-40-28 bent type single screw extruder
- the obtained pellets were injection-molded with an ASTM-1 dumbbell (thickness 3mm) at a cylinder temperature of 250 ° C using an injection molding machine (manufactured by FANUC, FAS 75D), and the mold release property was evaluated. .
- the evaluation results are shown in Table 6.
- pellets were produced in the same manner as in Example 9 except that the composition ratio of the polyorganosiloxane-containing graft copolymer and thermoplastic resin was changed, and then injection molding was performed to release the mold. Sex evaluation was performed. The evaluation results are shown in Table 6.
- a mixture of 75 parts by weight of butyl acrylate, 0.3 parts by weight of triarylnosocyanurate and 0.037 parts by weight of cumene hydride peroxide was continuously added dropwise over 6 hours. And stirred at 45 ° C for 1 hour. At this time, 0.25 parts by weight of sodium palmitate (solid content) was added 1.5 hours and 3 hours after the start of dropping.
- a second-stage monomer a mixture of 25 parts by weight of butyl acrylate, 0.4 parts by weight of triarylcyanurate and 0.013 parts by weight of cumene hydride peroxide was continuously added dropwise over 3 hours. After completion, the mixture was stirred at 45 ° C for 1 hour to complete the polymerization. The polymerization conversion rate was 99%.
- the resulting latex rubber volume average particle diameter of the acrylic rubber polymer was 0.092 ⁇ m.
- the resulting gen-based rubber-containing graft copolymer (d-1) latex and polymer (d-4) latex were mixed in a ratio of 20:80 (solid content) and a phenolic antioxidant (Asahi Denka Kogyo ( AO-50) (0.5% by weight) was added, and 3 parts by weight of calcium chloride (per 100 parts by weight of the resin solid content) was added as a 5% by weight aqueous solution to obtain a solidified slurry.
- the coagulated slurry was heated to 95 ° C., cooled to 50 ° C., dehydrated, and dried to obtain a powdery rubber-modified styrene resin (D-6).
- a polyorganosiloxane-containing graft copolymer and a rubber-modified styrene-based resin are blended as shown in Tables 7 and 8, pellets are produced in the same manner as in Example 11, and then injection molding is performed. Each test piece was prepared and evaluated for physical properties. The evaluation results are shown in Tables 7 and 8.
- pellets were prepared in the same manner as in Example 11 except that 1 part by weight of silicone oil (Toray Dow Coung. Silicone Co., Ltd., SH-200 (viscosity 10000 cST)) was used. Manufactured and injection-molded to produce test pieces and evaluated for physical properties. The evaluation results are shown in Table 8.
- the polyorganosiloxane-containing graft copolymer of the present invention is excellent in powder characteristics, and a resin composition containing a small amount of the copolymer in a thermoplastic resin can be obtained from a mold at the time of injection molding.
- the molded product is excellent in releasability, and the surface appearance and slidability of the molded product are excellent.
- a resin composition prepared by blending a small amount of the polyorganosiloxane-containing graft copolymer of a specific composition of the present invention with a thermoplastic resin is excellent in releasability and slidability at the time of molding. It can be used for parts, parts and the like.
- Examples thereof include steering, shift levers, pedals, door locks, various switches, door members, automobile interior and exterior members such as seat belts, bearings for these components, gear members, and pulley materials.
- Examples include housing materials, bearing materials, gear materials, and pulley materials for office equipment such as game machines, telephones, mobile phones, notebook computers, desktop computers, printers, copiers, facsimiles, and projectors. [0095] Sorted flights, chassis and parts, televisions, refrigerators, room air conditioners, washing machines, vacuum cleaners, lighting equipment, microwave ovens, electric fans, ventilation fans, shavings and other household electrical equipment housings, bearing materials, gear materials, A pulley material may be exemplified.
- a gear material and a pulley material can be exemplified.
- Examples include toilet seats, bearings, gear materials, and pulley materials for toilet seats, toilet lids, tanks, shelter parts, pump parts, water supply / drainage ports, window frame sashes, flooring materials, sill materials, handrail materials, and other building materials. sell.
- Examples include watches, toys, cameras, blind materials, curtain materials, bearing materials for various household items, gear materials, and pulley materials.
- the pulley material can be exemplified.
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2006529187A JP5153140B2 (ja) | 2004-07-28 | 2005-07-15 | 熱可塑性樹脂組成物 |
EP05766191A EP1777265A1 (en) | 2004-07-28 | 2005-07-15 | Thermoplastic resin composition |
KR1020077004647A KR101191065B1 (ko) | 2004-07-28 | 2005-07-15 | 열가소성 수지 조성물 |
US11/658,755 US7776966B2 (en) | 2004-07-28 | 2005-07-15 | Thermoplastic resin composition |
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JP2004220197 | 2004-07-28 | ||
JP2004-220197 | 2004-07-28 | ||
JP2004-262912 | 2004-09-09 | ||
JP2004262912 | 2004-09-09 | ||
JP2004322634 | 2004-11-05 | ||
JP2004-322634 | 2004-11-05 |
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WO2006011384A1 true WO2006011384A1 (ja) | 2006-02-02 |
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US (1) | US7776966B2 (ja) |
EP (1) | EP1777265A1 (ja) |
JP (1) | JP5153140B2 (ja) |
KR (1) | KR101191065B1 (ja) |
WO (1) | WO2006011384A1 (ja) |
Cited By (4)
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---|---|---|---|---|
WO2008130782A1 (en) | 2007-04-18 | 2008-10-30 | Dow Global Technologies Inc. | Improved monovinylidene aromatic polymers comprising sulfanylsilane functionalized elastomeric polymers |
GB2460586A (en) * | 2007-04-20 | 2009-12-09 | Gen Instrument Corp | Simulating short depth of field to maximize privacy in videotelephony |
WO2013162080A2 (ja) | 2013-08-13 | 2013-10-31 | 三菱レイヨン株式会社 | ポリオルガノシロキサン含有グラフト共重合体、樹脂組成物、成形体、摺動性改良剤及び摺動部材 |
JP2014218574A (ja) * | 2013-05-08 | 2014-11-20 | 株式会社クラレ | ポリアミド樹脂組成物 |
Families Citing this family (1)
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ES2729197T3 (es) * | 2006-03-01 | 2019-10-30 | Kaneka Corp | Método de producción de péptidos |
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- 2005-07-15 EP EP05766191A patent/EP1777265A1/en not_active Withdrawn
- 2005-07-15 JP JP2006529187A patent/JP5153140B2/ja not_active Expired - Fee Related
- 2005-07-15 KR KR1020077004647A patent/KR101191065B1/ko not_active Expired - Fee Related
- 2005-07-15 WO PCT/JP2005/013166 patent/WO2006011384A1/ja active Application Filing
- 2005-07-15 US US11/658,755 patent/US7776966B2/en not_active Expired - Fee Related
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WO2013162080A2 (ja) | 2013-08-13 | 2013-10-31 | 三菱レイヨン株式会社 | ポリオルガノシロキサン含有グラフト共重合体、樹脂組成物、成形体、摺動性改良剤及び摺動部材 |
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Also Published As
Publication number | Publication date |
---|---|
US7776966B2 (en) | 2010-08-17 |
US20080319140A1 (en) | 2008-12-25 |
JP5153140B2 (ja) | 2013-02-27 |
KR101191065B1 (ko) | 2012-10-15 |
JPWO2006011384A1 (ja) | 2008-05-01 |
KR20070043022A (ko) | 2007-04-24 |
EP1777265A1 (en) | 2007-04-25 |
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