WO2011136170A1 - 光硬化性シリコーンゲル組成物及びその用途 - Google Patents
光硬化性シリコーンゲル組成物及びその用途 Download PDFInfo
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- WO2011136170A1 WO2011136170A1 PCT/JP2011/060051 JP2011060051W WO2011136170A1 WO 2011136170 A1 WO2011136170 A1 WO 2011136170A1 JP 2011060051 W JP2011060051 W JP 2011060051W WO 2011136170 A1 WO2011136170 A1 WO 2011136170A1
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- WIPO (PCT)
- Prior art keywords
- silicone gel
- gel composition
- photocurable silicone
- parts
- mass
- Prior art date
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- 239000001257 hydrogen Substances 0.000 claims abstract description 15
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- LFOXEOLGJPJZAA-UHFFFAOYSA-N [(2,6-dimethoxybenzoyl)-(2,4,4-trimethylpentyl)phosphoryl]-(2,6-dimethoxyphenyl)methanone Chemical compound COC1=CC=CC(OC)=C1C(=O)P(=O)(CC(C)CC(C)(C)C)C(=O)C1=C(OC)C=CC=C1OC LFOXEOLGJPJZAA-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- BEIOEBMXPVYLRY-UHFFFAOYSA-N [4-[4-bis(2,4-ditert-butylphenoxy)phosphanylphenyl]phenyl]-bis(2,4-ditert-butylphenoxy)phosphane Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(C=1C=CC(=CC=1)C=1C=CC(=CC=1)P(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C BEIOEBMXPVYLRY-UHFFFAOYSA-N 0.000 description 1
- YNDUPGQMECPWKD-UHFFFAOYSA-N [O-][N+](=O)S[N+]([O-])=O Chemical compound [O-][N+](=O)S[N+]([O-])=O YNDUPGQMECPWKD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 1
- 229920001276 ammonium polyphosphate Polymers 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- RSOILICUEWXSLA-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(C)C(C)(C)C1 RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 description 1
- ZLSMCQSGRWNEGX-UHFFFAOYSA-N bis(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=C(N)C=C1 ZLSMCQSGRWNEGX-UHFFFAOYSA-N 0.000 description 1
- RFVHVYKVRGKLNK-UHFFFAOYSA-N bis(4-methoxyphenyl)methanone Chemical compound C1=CC(OC)=CC=C1C(=O)C1=CC=C(OC)C=C1 RFVHVYKVRGKLNK-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- NAJAZZSIKSSBGH-UHFFFAOYSA-N butane-1,1,1,2-tetracarboxylic acid Chemical compound CCC(C(O)=O)C(C(O)=O)(C(O)=O)C(O)=O NAJAZZSIKSSBGH-UHFFFAOYSA-N 0.000 description 1
- GGAUUQHSCNMCAU-UHFFFAOYSA-N butane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)CC(C(O)=O)C(C(O)=O)CC(O)=O GGAUUQHSCNMCAU-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 1
- WHGNXNCOTZPEEK-UHFFFAOYSA-N dimethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](C)(OC)CCCOCC1CO1 WHGNXNCOTZPEEK-UHFFFAOYSA-N 0.000 description 1
- YQGOWXYZDLJBFL-UHFFFAOYSA-N dimethoxysilane Chemical compound CO[SiH2]OC YQGOWXYZDLJBFL-UHFFFAOYSA-N 0.000 description 1
- JOJYIOOVPHLXBQ-UHFFFAOYSA-N dimethyl-bis(prop-1-en-2-yloxy)silane Chemical compound CC(=C)O[Si](C)(C)OC(C)=C JOJYIOOVPHLXBQ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- NUFVQEIPPHHQCK-UHFFFAOYSA-N ethenyl-methoxy-dimethylsilane Chemical compound CO[Si](C)(C)C=C NUFVQEIPPHHQCK-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- NYMPGSQKHIOWIO-UHFFFAOYSA-N hydroxy(diphenyl)silicon Chemical group C=1C=CC=CC=1[Si](O)C1=CC=CC=C1 NYMPGSQKHIOWIO-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- FSPSELPMWGWDRY-UHFFFAOYSA-N m-Methylacetophenone Chemical compound CC(=O)C1=CC=CC(C)=C1 FSPSELPMWGWDRY-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- RBQRWNWVPQDTJJ-UHFFFAOYSA-N methacryloyloxyethyl isocyanate Chemical compound CC(=C)C(=O)OCCN=C=O RBQRWNWVPQDTJJ-UHFFFAOYSA-N 0.000 description 1
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 description 1
- ICCDZMWNLNRHGP-UHFFFAOYSA-N methyl-[3-(oxiran-2-ylmethoxy)propyl]-bis(prop-1-en-2-yloxy)silane Chemical compound CC(=C)O[Si](C)(OC(C)=C)CCCOCC1CO1 ICCDZMWNLNRHGP-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- MBAUOPQYSQVYJV-UHFFFAOYSA-N octyl 3-[4-hydroxy-3,5-di(propan-2-yl)phenyl]propanoate Chemical compound OC1=C(C=C(C=C1C(C)C)CCC(=O)OCCCCCCCC)C(C)C MBAUOPQYSQVYJV-UHFFFAOYSA-N 0.000 description 1
- 150000001367 organochlorosilanes Chemical class 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002683 reaction inhibitor Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- LTURHSAEWJPFAA-UHFFFAOYSA-N sulfuric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OS(O)(=O)=O.NC1=NC(N)=NC(N)=N1 LTURHSAEWJPFAA-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 229940087291 tridecyl alcohol Drugs 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
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- 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
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/548—Silicon-containing compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- 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
- C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
- C09K3/1018—Macromolecular compounds having one or more carbon-to-silicon linkages
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/28—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen sulfur-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/416—Additional features of adhesives in the form of films or foils characterized by the presence of essential components use of irradiation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2483/00—Presence of polysiloxane
-
- 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
- C09K2003/1034—Materials or components characterised by specific properties
- C09K2003/1062—UV-curable materials
Definitions
- the present invention relates to a photocurable silicone gel composition and a cured product that can be cured by light irradiation, and more specifically, an excellent photocurable silicone gel composition that exhibits little change in physical properties even when left at high temperature and high humidity for a long time. And a cured product thereof and use thereof.
- Silicone gel is excellent in low elastic modulus, mechanical strength, heat resistance, cold resistance, etc., so it can be used for adhesives, sealants, potting materials, coating materials, and optical pickup devices for various electrical and electronic parts. It is used in a wide range of fields.
- Patent Document 3 proposes a photocurable organopolysiloxane obtained by reacting a terminal amino group-containing organopolysiloxane with a (meth) acryl group-containing isocyanate. There was a problem of doing.
- Patent Document 4 discloses a sealing agent using a photocurable gel which is a photocurable organopolysiloxane obtained by reacting a terminal amino group-containing organopolysiloxane with a vinyl group-containing isocyanate. It is disclosed that it was used as a sealing agent for small switches, waterproof small resistors, hard disk covers, and the like.
- the composition disclosed herein is not suitable for sealing applications used under high temperature and high humidity. This composition has a problem that the composition deteriorates softly under high temperature and high humidity and the sealing performance is lowered.
- the present invention is used as a damping material for optical pickups, a sealing agent, and the like because it is rapidly cured by light irradiation, and the cured product after curing has a small change in physical properties even when left for a long time under high temperature and high humidity.
- An object of the present invention is to provide a photocurable silicone composition that can be used and its use.
- the first embodiment of the present invention is: (A) Organopolysiloxane having at least one group represented by the following general formula (1): 100 parts by mass
- R 3 to R 6 represent hydrogen or an alkyl group having 1 to 20 carbon atoms
- R 7 in the formula represents hydrogen or —CH 2 —R 8
- R 8 represents hydrogen or A hindered amine compound having a group represented by the following formula:
- a photocurable silicone gel composition comprising 0.001 to 10 parts by mass with respect to 100 parts by mass of the component is provided.
- the second embodiment of the present invention provides the photocurable silicone gel composition of the first embodiment, wherein the viscosity of component (A) at 25 ° C. is 10 to 100,000 cps or less.
- the component (B) is composed of (CH 3 ) 3 SiO 1/2 units, (CH 3 ) (HS (CH 2 ) n) SiO 2/2 units (n is 2 to 20) An integer) and a photocurable silicone gel composition according to the first or second embodiment, which is a mercaptoalkyl group-containing organopolysiloxane composed of (CH 3 ) 2 SiO 2/2 units.
- the fourth embodiment of the present invention provides the photocurable silicone gel composition according to any one of the first to third embodiments, which is used as a damping material for an optical pickup.
- the fifth embodiment of the present invention provides the photocurable silicone gel composition of any one of the first to third embodiments used as a sealant.
- the sixth embodiment of the present invention provides the photocurable silicone gel composition of the fifth embodiment used as a sealant for in-vehicle electronic devices.
- the seventh embodiment of the present invention provides an optical pickup damping material comprising a cured product obtained by curing the photocurable silicone gel composition of any of the first to third embodiments under light irradiation. Is done.
- the eighth embodiment of the present invention is obtained by applying the photocurable silicone gel composition of the first or second embodiment to an article to be sealed and curing the photocurable silicone gel composition under light irradiation. There is provided a sealing method in which a cured product to be bonded is joined with an opposed article to be sealed and pressed.
- the present invention described above is excellent in photocurability, and does not deteriorate softly even when the cured product after curing is left for a long time under high temperature and high humidity. That is, when used for a damping material used in an optical pickup, it is excellent in productivity and has little change in physical properties even when left at high temperature and high humidity for a long time, so that stable damping performance can be maintained. In addition, even when used as a sealing agent, even if it is left for a long time under high temperature and high humidity, there is little change in physical properties, so that stable sealing performance can be obtained.
- the organopolysiloxane (A) is a main component of the photocurable silicone gel composition of the present invention, and has at least one group represented by the following general formula (1).
- bonding position of group shown by General formula (1) in a component is not limited, For example, a molecular chain terminal and a molecular chain side chain are mentioned. Further, the silicon-bonded organic group other than the group represented by the general formula (1) in the component (A) is substituted with a methyl group or a phenyl group.
- the molecular structure of the component (A) is substantially linear, but a part of it may have a branched structure.
- Such component (A) examples include molecular chain terminal dimethylvinylsiloxy group-capped dimethylsiloxane, molecular chain terminal dimethylvinylsiloxy group-capped dimethylsiloxane / diphenylsiloxane copolymer, molecular chain terminal dimethylvinylsiloxy group-capped dimethylsiloxane, Methyl vinyl siloxane / diphenyl siloxane copolymer, one end of molecular chain blocked with dimethylvinylsiloxy group, the other end of molecular chain blocked with trimethylsiloxy group, one end of molecular chain with dimethylvinylsiloxy group Dimethylsiloxane, methylvinylsiloxane / diphenylsiloxane, and trimethylsiloxy group-blocked dimethylsiloxane / methylvinylsiloxane blocked at the other end of the molecular chain with a trimethylsiloxy group.
- Emissions copolymer both molecular chain terminals blocked with trimethylsiloxy groups dimethylsiloxane-methylvinylsiloxane-diphenylsiloxane copolymer. These may be used alone or in combination of two or more.
- Component organopolysiloxane has a viscosity at 25 ° C. of 10 to 100,000 cps, preferably 100 to 50,000 cps. If it is less than 10 cps, there is a problem in the self-holding property of the cured product. If it exceeds 100,000 cps, handling of the photocurable silicone gel composition of the present invention becomes difficult and workability is poor.
- the molecular weight of the organopolysiloxane (A) is preferably 1000 to 500,000, more preferably 10,000 to 100,000. If the molecular weight is less than 1000, there is a problem in the self-holding property of the cured product. If the molecular weight exceeds 500,000, handling of the photocurable silicone gel composition of the present invention becomes difficult and workability is poor, and the damping property is affected. Will appear.
- “molecular weight” refers to a weight average molecular weight (Mw) in terms of polystyrene measured by gel permeation chromatography (GPC).
- the component (B) is an organopolysiloxane containing a mercaptoalkyl group, such as an organopolysiloxane in which a mercaptoalkyl group is substituted at the end of a molecular chain or a side chain.
- HS (CH 2 ) n (n is an integer of 2 to 20) groups are present in an average of more than 3 in one molecule. Sexuality gets worse.
- mercaptoalkyl groups include mercaptoethyl, mercaptopropyl, and mercaptohexyl groups.
- the molecular weight of the component (B) is preferably 1,000 or more, and more preferably 5,000 or more. When it is less than 1,000, the physical strength of the cured product is lowered.
- Component (B) has a ratio of (CH 3 ) (HS (CH 2 ) n) SiO 2/2 (n is an integer of 2 to 20) and (CH 3 ) 2 SiO 2/2 units of 1:99 to 50 :
- the range of 50 is desirable. If the ratio of (CH 3 ) (HS (CH 2) n) SiO 2/2 (n is an integer of 2 to 20) unit falls below this range, the curability is extremely lowered. If the ratio of (CH 3 ) (HS (CH 2 ) n) SiO 2/2 (n is an integer of 2 to 20) unit is exceeded from this range, long-term durability cannot be maintained.
- the blending amount of the component (B) is such that the number of moles of the mercaptoalkyl group in the component (B) is 0.01 to 1.0 mole with respect to 1 mole of the group represented by the general formula (1) of (A).
- the amount is preferably 0.1 to 1.0 mol. When the amount is less than 0.01 mol, the curability is lowered. When the amount is more than 1.0 mol, the hardness is increased, and the cured product is not a gel, so that the object of the present invention is not satisfied.
- the photopolymerization initiator of the component (C) known ones can be used, and the photopolymerization initiator as the component (C) used in the present invention is the vinyl group in the component (A) and the component (B).
- 1-hydroxy-cyclohexyl-phenyl-ketone 2,2-dimethoxy-2-phenylacetophenone, which are well known in the art , Xanthone, fluorenone, benzaldehyde, fluorene, anthraquinone, triphenylamine, carbazole, 3-methylacetophenone, 4-chlorobenzophenone, 4,4'-dimethoxybenzophenone, 4,4'-diaminobenzophenone, Michler's ketone, benzoin propyl ether, benzoin Ethyl ether, benzyl dimethyl ketone 1- (4-isopropylphenyl) -2-hydroxy-2-methylpropan-1-one, 2-hydroxy-2-methyl-1-phenyl
- the blending amount of the component (C) is an effective amount for initiating the photoreaction, and is generally 0.01 to 20 parts by mass with respect to 100 parts by mass of the component (A).
- the hindered amine compound as component (D) is a main component of the present invention that suppresses soft deterioration due to high temperature and high humidity, which is a problem, and is important to be a hindered amine compound having a group represented by the general formula (2). It is.
- R 3 to R 6 represent hydrogen or an alkyl group having 1 to 20 carbon atoms, and R 7 in the formula represents hydrogen or —CH 2 —R 8 (R 8 represents hydrogen or monovalent)
- the organic group is hydroxy, linear or branched alkyl, cycloalkyl, aryl, alkoxy, halogen, ester, carboxy, aldehyde, amino, imino, imide, nitrile, amide, imide, cyano, sulfo, Non-limiting examples include nitro, sulfide, thiol, isocyanate and nitro.
- hindered amine compounds include TINUVIN 765 (bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate and methyl 1,2,2,6,6-pentamethyl).
- -4-piperidyl sebacate TINUVIN111FDL (polymer of dimethyl succinate and 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol, N ′, N ′′, N ′′) '-Tetrakis- (4,6-bis- (butyl- (N-methyl-2,2,6,6-tetramethylpiperidin-4-yl) amino) -triazin-2-yl) -4,7-diazadecane -1,10-diamine), TINUVIN 144 (bis (1,2,2,6,6-pentamethyl-4-piperidyl) [[3,5-bis 1,1-dimethylethyl) -4-hydroxyphenyl] methyl] butyl malonate) (both
- Component (D) is blended in an amount of 0.001 to 10 parts, preferably 0.01 to 7 parts, more preferably 0.05 to 5 parts by weight per 100 parts by weight of component (A). . If it is less than 0.001 part by mass, the effect of suppressing soft deterioration due to high temperature and high humidity is small, and if it is more than 10 parts by mass, the curability is poor and bleeding occurs.
- the photocurable silicone gel composition of the present invention is optionally filled with various fillers, heat stabilizers, flame retardants, anti-gelling agents, Physical property modifiers, organic solvents and the like can also be added.
- fillers examples include fumed silica, rubber particles, silicone resins, inorganic fillers such as glass beads and quartz powder, and conductive or thermally conductive fillers such as metals or metal compounds.
- Fumed silica filler is blended for the purpose of improving the mechanical strength of the cured product.
- those hydrophobized with organochlorosilanes, polyorganosiloxane, hexamethyldisilazane, etc. are used.
- fumed silica examples include, for example, trade names Aerosil R974, R972, R972V, R972CF, R805, R812, R812S, R816, R8200, RY200, RX200, RY200S, # 130, # 200 manufactured by Nippon Aerosil. , # 300, R202, etc., and commercial products such as Nippon Silica's trade name Nippon Sil SS series.
- the blending amount of the filler is preferably about 0.1 to 20 parts by mass with respect to 100 parts by mass of the component (A).
- the amount is less than 0.1 parts by mass, the effect is small, and when the amount is more than 20 parts by mass, the fluidity of the photocurable silicone gel composition of the present invention becomes poor and the workability decreases.
- heat-resistant stabilizers examples include phenolic antioxidants, thioether antioxidants, and phosphorus antioxidants.
- phenolic antioxidants examples include 2,6-di-t-butyl-p-cresol, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, and 2,6-t-butyl.
- Monophenols such as -4-ethylphenol, 2,2′-methylene-bis (4-methyl-6-tert-butylphenol), 4,4′-thiobis (3-methyl-6-tert-butylphenol), 4 Bisphenols such as 1,4′-butylidene-bis (3-methyl-6-tert-butylphenol); and 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane; , 3,5-trimethyl-2,4,6-1-lis (3,5-di-t-butyl-4-hydroxybenzyl) benzene, tetrakis [methylene-3- (3 ′, 5′-di- -Butyl-4'-hydroxyphenyl) propionate] methan
- thioether-based antioxidant examples include thioether-based antioxidants such as MARK PEP-36 and MARKAO-23 (all of which are manufactured by Adeka Argus Chemical), but are not particularly limited.
- Examples of phosphorus antioxidants include Irgafos 38, Irgafos 168, and Irgafos P-EPQ (all of which are manufactured by Ciba Geigy Japan), but are not particularly limited.
- Flame retardants include magnesium hydroxide, aluminum hydroxide, ammonium polyphosphate, phosphorous such as red phosphorus, nitrogen such as melamine cyanurate and melamine sulfate, silicone powder, silicone such as organopolysiloxane, zinc borate, etc. However, it is not particularly limited.
- a dark reaction inhibitor examples thereof include hydroquinone, p-methoxyphenol, t-butylcatechol, and phenothiazine.
- Examples of the physical property adjusting agent include various silane coupling agents, for example, alkylalkoxysilanes such as methyltrimethoxysilane, dimethyldimethoxysilane, trimethylmethoxysilane, and n-propyltrimethoxysilane; dimethyldiisopropenoxysilane, methyltriisopro Alkyl isopropenoxy silane such as penoxy silane, ⁇ -glycidoxy propyl methyl diisopropenoxy silane, ⁇ -glycidoxy propyl methyl dimethoxy silane, ⁇ -glycidoxy propyl trimethoxy silane, vinyl trimethoxy silane, vinyl Dimethylmethoxysilane, ⁇ -aminopropyltrimethoxysilane, N- ( ⁇ -aminoethyl) aminopropylmethyldimethoxysilane, ⁇ -mercaptopropyltrimethoxysilane, ⁇ -mercaptopropy
- organic solvent examples include hexane, heptane, toluene, xylene and the like, but are not particularly limited.
- the method for producing the photocurable silicone gel composition of the present invention is not particularly limited, and a known method can be applied. For example, kneading each component and optionally used additive components using a kneader capable of adjusting the temperature, such as a single screw extruder, twin screw extruder, planetary mixer, twin screw mixer, high shear mixer, etc. Can be manufactured.
- a kneader capable of adjusting the temperature such as a single screw extruder, twin screw extruder, planetary mixer, twin screw mixer, high shear mixer, etc.
- Application of the photocurable silicone gel composition to a member such as an adherend is performed by any method using a coating liquid in which the temperature of the photocurable silicone gel composition is adjusted as necessary and adjusted to a constant viscosity.
- a method such as gravure coating, roll coating, spin coating, screen coating, blade coating, dipping, dispensing, and ink jet can be used.
- the light source for curing the photocurable silicone gel composition of the present invention by irradiating with light is not particularly limited. Examples include mercury lamps, metal halide lamps, sodium lamps, halogen lamps, xenon lamps, LEDs, fluorescent lamps, sunlight, and electron beam irradiation devices.
- the irradiation amount of light irradiation is preferably 10 kJ / m 2 or more, more preferably 15 kJ / m 2 or more from the viewpoint of the properties of the cured product.
- the photocurable silicone gel composition of the present invention can be used as a damping material for an optical pickup using the following method.
- damping characteristics are required.
- the damping characteristic is determined from tan ⁇ (loss coefficient) and G * (complex elastic modulus) that can be measured by a rheometer.
- tan ⁇ of a silicone gel is low in form retention in the case of a gel of a composition whose value increases after a high temperature and high humidity condition (85 ° C., 85% RH) as compared with the initial value.
- the shape changes during strong vibration or impact.
- the required value of G * of the silicone gel is selected depending on each specific product. Therefore, it is generally not determined whether the value is high or low. % RH), it is determined that there should be no change compared to the initial value.
- the optical pickup damping material comprising a cured product obtained by curing the photocurable silicone gel composition of the present invention under light irradiation is left in a high temperature and high humidity environment such as 85 ° C. and 85% RH for a long time. It is suitably used for pick-up of in-vehicle disk devices.
- the in-vehicle disk device may be used for reproducing information recorded on a disk medium such as DVD, BD (Blu-ray Disc), CD, or MD, but is not limited thereto.
- the photocurable silicone gel composition of the present invention can be used as a sealant using the following method. That is, the photocurable silicone gel composition is cured by applying to a flange which is an article to be sealed and irradiating the photocurable silicone gel composition with light. The sealant of the cured product is joined to the flange portion of the opposite article to be sealed and pressed.
- the cured product of the photocurable silicone gel composition of the present invention can maintain stable sealing performance because the initial sealing property and the amount of change in sealing property after high temperature and high humidity conditions (85 ° C., 85% RH) are small.
- the compressibility of the sealing agent is 10% or more in order to exhibit reliable sealing performance, and more preferable.
- the compression ratio is 10 to 90%. In sealing applications that are left for a long time under high temperature and high humidity, the sealing performance is impaired when the compression is less than 10%.
- the flange portion of the article to be sealed examples include resin and metal.
- the resin is not particularly limited, and polyolefin resins such as polyethylene and polypropylene, EPDM (ethylene-propylene-diene copolymer), PPS (polyphenylene sulfide), polyimide resin, fluororesin, PEEK (polyetheretherketone), PES (polyester) Ether sulfone), PBT (polybutylene terephthalate), PPS (polyphenylene sulfide), PA (polyamide) and the like.
- the metal is not particularly limited, and examples thereof include, but are not limited to, iron, aluminum / zinc alloy plated steel, stainless steel, aluminum, aluminum alloy, magnesium, magnesium alloy and the like.
- the photocurable silicone gel composition of the present invention is preferably used.
- a case for mounting an in-vehicle electronic device excellent in waterproofness, sealing performance, and safety can be obtained.
- Organopolysiloxane base 1 Molecular chain terminal dimethylvinylsiloxy group-blocked dimethylsiloxane (molecular weight 43,000, viscosity 3,500 cps)
- Organopolysiloxane base 2 Molecular chain terminal dimethylvinylsiloxy group-capped dimethylsiloxane / diphenylsiloxane copolymer (molecular weight 62,000, viscosity 10,000 cps)
- Organopolysiloxane base 3 Molecular chain terminal dimethylvinylsiloxy group-blocked dimethylsiloxane (molecular weight 72,000, viscosity 20,000 cps) ⁇ Comparison component of component A>
- Organopolysiloxane base 4 Stirring at 100 ° C.
- a terminal (meth) acryl group-containing organopolysiloxane obtained by adding 1.54 g of 2-isocyanatoethyl methacrylate to 200 g of the di (polydimethylsiloxane) and carrying out a stirring reaction at 50 ° C. for 1 hour under nitrogen substitution was obtained.
- Component (B) (b1) Mercaptopropyl group-containing organopolysiloxane: dimethylsiloxane / mercaptopropylmethylsiloxane copolymer (molecular weight 10,000, viscosity 170 cps) whose molecular weight ends are blocked with trimethylsiloxy groups
- Component (C) (c1) 2-Hydroxy-2-methyl-1-phenyl-propan-1-one: DAROCURE 1173 (manufactured by BASF) (C2) 1-hydroxy-cyclohexyl-phenyl-ketone: IRGACURE 184 (manufactured by BASF) (D) component (d1) hindered amine 1: TINUVIN 765 (manufactured by BASF) ...
- Fumed silica Aerosil R972 (manufactured by Nippon Aerosil Co., Ltd.) (average primary particle size: 16 nm, BET specific surface area: 130 m 2 / g)
- ⁇ Sealability test> In the sealability test, a bead diameter width of 3 mm is applied to a square pressure-resistant flange having a flange width of 10 mm made of aluminum and a flange frame size (inside) of 80 ⁇ 80 mm using a dispenser. The film was applied to a height of 1.5 mm and cured by irradiating ultraviolet rays of 60 kJ / m 2 from above. Thereafter, a flat aluminum plate of the same size was used from above, and was tightened at a compression rate of 60%, submerged, and the pressure inside the flange was gradually increased to conduct an air leak pressure test. At this time, the pressurizing condition was 0.01 MPa / 15 sec, and the maximum pressure at which air did not leak was summarized in Tables 3 to 4 as pressure resistance.
- the photocurable silicone gel composition of the present invention is cured by light irradiation, and the cured product has little change in penetration even when exposed to high temperature and high humidity, and further has shape retention, vibration absorption, and sealing properties. Since it is excellent, it can be applied to a wide range of fields such as adhesives, sealants, potting materials, coating materials, and damping materials used in optical pickup devices for various electric and electronic parts.
- the damping material can be applied to an optical pickup device that requires high reliability
- the sealing agent can be applied to a vehicle-mounted component that is exposed to high temperature and high humidity. Since it can be applied to a wider field, it is industrially useful.
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Abstract
Description
(A)下記一般式(1)に示される基を少なくとも1個以上有するオルガノポリシロキサン: 100質量部
(B)メルカプトアルキル基含有オルガノポリシロキサン:メルカプトアルキル基のモル数が前記(A)の一般式(1)に示される基1モルに対し、0.01~1.0モルとなる質量部
(C)光重合開始剤: (A)成分100質量部に対し、0.01~20質量部、および
(D)下記一般式(2)
からなる光硬化性シリコーンゲル組成物が提供される。
(A)成分のオルガノポリシロキサンは本発明の光硬化性シリコーンゲル組成物の主成分であり、下記一般式(1)に示される基を少なくとも1個以上有する。
(A)成分の分子構造は実質的に直線状であるが、一部に分岐構造があってもよい。このような(A)成分としては、例えば分子鎖末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン、分子鎖末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン・ジフェニルシロキサン共重合体、分子鎖末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン・ジフェニルシロキサン共重合体、分子鎖片末端がジメチルビニルシロキシ基で封鎖され、もう一方の分子鎖片末端がトリメチルシロキシ基で封鎖されたジメチルシロキサン、分子鎖片末端がジメチルビニルシロキシ基で封鎖され、もう一方の分子鎖片末端がトリメチルシロキシ基で封鎖されたジメチルシロキサン、メチルビニルシロキサン・ジフェニルシロキサン、分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン共重合体、分子鎖両末端トリメチルシロキシ基封鎖ジメチルシロキサン・メチルビニルシロキサン・ジフェニルシロキサン共重合体が挙げられる。これらは単独で1種のみで用いられてもよく、または2種以上併用されてもよい、
本発明の光硬化性シリコーンゲル組成物は、以下の方法を用いて光ピックアップ用ダンピング材として使用することができる。
本発明の光硬化性シリコーンゲル組成物は、以下の方法を用いてシール剤として使用することができる。すなわち、被シール物品であるフランジに塗布し、光硬化性シリコーンゲル組成物に光を照射することにより、光硬化性シリコーンゲル組成物を硬化させる。硬化物のシール剤は対向する被シール物品のフランジ部と接合し、圧接される。
(A)成分
(a1)オルガノポリシロキサンベース1:分子鎖末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン(分子量43,000、粘度3,500cps)
(a2)オルガノポリシロキサンベース2:分子鎖末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン・ジフェニルシロキサン共重合体(分子量62,000、粘度10,000cps)
(a3)オルガノポリシロキサンベース3:分子鎖末端ジメチルビニルシロキシ基封鎖ジメチルシロキサン(分子量72,000、粘度20,000cps)
〈A成分の比較成分〉
(a’1)オルガノポリシロキサンベース4:分子鎖末端シラノールポリジメチルシロキサン(分子量10,000)2000gにアミノプロピルメチルジメトキシシラン16.3gを滴下しつつ、窒素置換中にて100℃で2時間撹拌する。その後真空に引き残存している可能性のある未反応のアミノプロピルメチルジメトキシランを取り除き、粘度10,000cpsの片末端にアミノ基をもつジ(ポリジメチルシロキサン)を得た。前記ジ(ポリジメチルシロキサン)200gに2-イソシアネートエチルメタクリレート1.54gを加え窒素置換中にて50℃で1時間撹拌反応させて得られる末端(メタ)アクリル基含有オルガノポリシロキサンを得た。
(B)成分
(b1)メルカプトプロピル基含有オルガノポリシロキサン:分子量末端がトリメチルシロキシ基で封鎖されたジメチルシロキサン・メルカプトプロピルメチルシロキサン共重合体(分子量10,000、粘度170cps)
(C)成分
(c1)2-ヒドロキシ-2-メチル-1-フェニル-プロパン-1-オン:DAROCURE1173(BASF社製)
(c2)1-ヒドロキシ-シクロヘキシル-フェニル-ケトン:IRGACURE184(BASF社製)
(D)成分
(d1)ヒンダードアミン1:TINUVIN 765(BASF社製)・・・一般式(3)及び(4)の混合物
(d2)ヒンダードアミン2:TINUVIN 111FDL(BASF社製)・・・一般式(5)及び(6)の混合物
(d3)ヒンダードアミン3:TINUVIN 144(BASF社製)・・・一般式(7)
〈D成分の比較成分〉
(d’1)ヒンダードアミン4:TINUVIN123(BASF社製)・・・一般式(8)
(d’2)ヒンダードフェノール1:IRGANOX 1135(BASF社製)・・・一般式(9)
(d’3)ヒンダードフェノール2:IRGANOX 1010(BASF社製)・・・一般式(10)
(d’4)ヒンダードフェノール3:IRGANOX1035(BASF社製)・・・一般式(11)
・フュームドシリカ:アエロジルR972(日本アエロジル(株)社製)(平均一次粒径:16nm、BET比表面積:130m2/g)
<光硬化性シリコーンゲル組成物の調製>
各成分を表1~4に示す質量部で採取し、常温にてプラネタリーミキサーで混合し、光硬化性シリコーンゲル組成物を調製し、各種物性に関して次のようにして測定した。
上記光硬化性シリコーンゲル組成物に高圧水銀ランプで積算光量30kJ/m2の紫外線を照射し、約5gの硬化物を作製しJISK2220(2003年)に準じ、1/4コーン(9.38g)を使用し、針入度を測定した。その結果を表1~4に示す。
上記の針入度試験と同様に硬化物を作製しJISK2220(2003年)に準じ、1/4コーン(9.38g)を使用し、温度85℃、湿度85%RHに500時間放置したものを測定用試料として、針入度を測定した。その結果を表1~4に示す。
積算光量30kJ/m2の紫外線を照射し、2gの硬化物を作製し、レオメーターによりダンピング性を測定した。レオメーターにより25℃で1Hzの時のtanδとG*を測定した。その結果を表1~2に示す。
上記のダンピング特性試験と同様に硬化物を作製し、温度85℃、湿度85%RHに500時間放置したものを測定用試料として、レオメーターによりダンピング性を測定した。その結果を表1~2に示す。
シール性試験に際しては、アルミでできたフランジ幅10mm、フランジ枠の大きさ(内側)80×80mmの四角形の耐圧性フランジに、表中の光硬化性シリコーンゲル組成物をディスペンサーによりビード径幅3.0mm高さ1.5mmに塗布し、上から60kJ/m2の紫外線を照射し硬化させた。その後、上から同じ大きさの平らなアルミ板を用い圧縮率60%で締め付けて、水没させ、フランジ内圧を徐々に挙げていきエアーリーク耐圧試験を行った。このとき昇圧条件は0.01MPa/15secとし、エアーが漏れない最大圧力を耐圧性として表3~4にまとめた。
上記のシール性試験と同様に測定試料を作製し、その後温度85℃、湿度85%RHに500時間放置したものを測定用試料として、水没させ、フランジ内圧を徐々に挙げていきエアーリーク耐圧試験を行った。このとき昇圧条件は0.01MPa/15secとし、エアーが漏れない最大圧力を耐圧性として、表3~4にまとめた。
本出願は、2010年4月26日出願の日本特許出願2010-101249に基づくものであり、その内容はここに参照として取り込まれる。
Claims (8)
- (A)下記一般式(1)に示される基を少なくとも1個以上有するオルガノポリシロキサン: 100質量部
(B)メルカプトアルキル基含有オルガノポリシロキサン:メルカプトアルキル基のモル数が前記(A)の一般式(1)に示される基1モルに対し、0.01~1.0モルとなる質量部、
(C)光重合開始剤: (A)成分100質量部に対し、0.01~20質量部、および
(D)下記一般式(2)
からなる光硬化性シリコーンゲル組成物。 - (A)成分の25℃における粘度が10~100,000cps以下である請求項1に記載の光硬化性シリコーンゲル組成物。
- (B)成分が(CH3)3SiO1/2単位、(CH3)(HS(CH2)n)SiO2/2単位(nは2~20の整数)、および(CH3)2SiO2/2単位からなるメルカプトアルキル基含有オルガノポリシロキサンである請求項1又は2に記載の光硬化性シリコーンゲル組成物。
- 光ピックアップのダンピング材として用いられる請求項1~3のいずれか1項に記載の光硬化性シリコーンゲル組成物。
- シール剤として用いられる請求項1~3のいずれか1項に記載の光硬化性シリコーンゲル組成物。
- 車載電子機器のシール剤として用いられる請求項5に記載の光硬化性シリコーンゲル組成物。
- 請求項1~3のいずれか1項に記載の光硬化性シリコーンゲル組成物を光照射下で硬化させて得られる硬化物からなる光ピックアップ用ダンピング材。
- 請求項1又は2に記載の光硬化性シリコーンゲル組成物を被シール物品に塗布し、光硬化性シリコーンゲル組成物を光照射下で硬化させて得られる硬化物を対向する被シール物品で接合し、圧接するシール方法。
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