WO2022138348A1 - Curable silicone composition, release coating agent for silicone adhesive agent formed from curable silicone composition, release film, and laminate - Google Patents
Curable silicone composition, release coating agent for silicone adhesive agent formed from curable silicone composition, release film, and laminate Download PDFInfo
- Publication number
- WO2022138348A1 WO2022138348A1 PCT/JP2021/046150 JP2021046150W WO2022138348A1 WO 2022138348 A1 WO2022138348 A1 WO 2022138348A1 JP 2021046150 W JP2021046150 W JP 2021046150W WO 2022138348 A1 WO2022138348 A1 WO 2022138348A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- sensitive adhesive
- release
- component
- curable silicone
- Prior art date
Links
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 275
- 239000000203 mixture Substances 0.000 title claims abstract description 164
- 239000011248 coating agent Substances 0.000 title claims description 33
- 239000003795 chemical substances by application Substances 0.000 title abstract description 39
- 239000013464 silicone adhesive Substances 0.000 title abstract description 38
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 76
- 125000000962 organic group Chemical group 0.000 claims abstract description 44
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 41
- 238000003860 storage Methods 0.000 claims abstract description 33
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 32
- 238000006459 hydrosilylation reaction Methods 0.000 claims abstract description 20
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 229920006136 organohydrogenpolysiloxane Polymers 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 144
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 121
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 64
- 125000004432 carbon atom Chemical group C* 0.000 claims description 45
- 125000003709 fluoroalkyl group Chemical group 0.000 claims description 42
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 18
- 239000011737 fluorine Substances 0.000 claims description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 6
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 29
- 239000000853 adhesive Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000007809 chemical reaction catalyst Substances 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 67
- 229910004298 SiO 2 Inorganic materials 0.000 description 48
- -1 siloxane units Chemical group 0.000 description 45
- 239000000463 material Substances 0.000 description 26
- 239000002904 solvent Substances 0.000 description 18
- 230000001070 adhesive effect Effects 0.000 description 17
- 239000000243 solution Substances 0.000 description 17
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 125000000217 alkyl group Chemical group 0.000 description 11
- 125000001033 ether group Chemical group 0.000 description 11
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 10
- 125000003710 aryl alkyl group Chemical group 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 9
- 229910052697 platinum Inorganic materials 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 7
- 150000004756 silanes Chemical class 0.000 description 6
- 229910004283 SiO 4 Inorganic materials 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- NOPJRYAFUXTDLX-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane Chemical compound COC(F)(F)C(F)(F)C(F)(F)F NOPJRYAFUXTDLX-UHFFFAOYSA-N 0.000 description 2
- SJBBXFLOLUTGCW-UHFFFAOYSA-N 1,3-bis(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC(C(F)(F)F)=C1 SJBBXFLOLUTGCW-UHFFFAOYSA-N 0.000 description 2
- DFUYAWQUODQGFF-UHFFFAOYSA-N 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane Chemical compound CCOC(F)(F)C(F)(F)C(F)(F)C(F)(F)F DFUYAWQUODQGFF-UHFFFAOYSA-N 0.000 description 2
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 description 2
- OJVAMHKKJGICOG-UHFFFAOYSA-N 2,5-hexanedione Chemical compound CC(=O)CCC(C)=O OJVAMHKKJGICOG-UHFFFAOYSA-N 0.000 description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 2
- XLLIQLLCWZCATF-UHFFFAOYSA-N 2-methoxyethyl acetate Chemical compound COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 2
- SZNYYWIUQFZLLT-UHFFFAOYSA-N 2-methyl-1-(2-methylpropoxy)propane Chemical compound CC(C)COCC(C)C SZNYYWIUQFZLLT-UHFFFAOYSA-N 0.000 description 2
- CEBKHWWANWSNTI-UHFFFAOYSA-N 2-methylbut-3-yn-2-ol Chemical compound CC(C)(O)C#C CEBKHWWANWSNTI-UHFFFAOYSA-N 0.000 description 2
- FNUBKINEQIEODM-UHFFFAOYSA-N 3,3,4,4,5,5,5-heptafluoropentanal Chemical compound FC(F)(F)C(F)(F)C(F)(F)CC=O FNUBKINEQIEODM-UHFFFAOYSA-N 0.000 description 2
- HCFAJYNVAYBARA-UHFFFAOYSA-N 4-heptanone Chemical compound CCCC(=O)CCC HCFAJYNVAYBARA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000007259 addition reaction Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920001843 polymethylhydrosiloxane Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical group [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 2
- NUMQCACRALPSHD-UHFFFAOYSA-N tert-butyl ethyl ether Chemical compound CCOC(C)(C)C NUMQCACRALPSHD-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 125000003944 tolyl group Chemical group 0.000 description 2
- 125000002948 undecyl 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])[H] 0.000 description 2
- 125000005023 xylyl group Chemical group 0.000 description 2
- XJSRKJAHJGCPGC-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane Chemical compound FC(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F XJSRKJAHJGCPGC-UHFFFAOYSA-N 0.000 description 1
- PRBHEGAFLDMLAL-UHFFFAOYSA-N 1,5-Hexadiene Natural products CC=CCC=C PRBHEGAFLDMLAL-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- VMAWODUEPLAHOE-UHFFFAOYSA-N 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Chemical compound C=C[Si]1(C)O[Si](C)(C=C)O[Si](C)(C=C)O[Si](C)(C=C)O1 VMAWODUEPLAHOE-UHFFFAOYSA-N 0.000 description 1
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 description 1
- HHBZZTKMMLDNDN-UHFFFAOYSA-N 2-butan-2-yloxybutane Chemical compound CCC(C)OC(C)CC HHBZZTKMMLDNDN-UHFFFAOYSA-N 0.000 description 1
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 description 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- RGMZNZABJYWAEC-UHFFFAOYSA-N Methyltris(trimethylsiloxy)silane Chemical compound C[Si](C)(C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C RGMZNZABJYWAEC-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- TUVYSBJZBYRDHP-UHFFFAOYSA-N acetic acid;methoxymethane Chemical group COC.CC(O)=O TUVYSBJZBYRDHP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 150000001565 benzotriazoles Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- ZPOLOEWJWXZUSP-AATRIKPKSA-N bis(prop-2-enyl) (e)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C\C(=O)OCC=C ZPOLOEWJWXZUSP-AATRIKPKSA-N 0.000 description 1
- ZPOLOEWJWXZUSP-WAYWQWQTSA-N bis(prop-2-enyl) (z)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C/C(=O)OCC=C ZPOLOEWJWXZUSP-WAYWQWQTSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229940043232 butyl acetate Drugs 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- JJRDHFIVAPVZJN-UHFFFAOYSA-N cyclotrisiloxane Chemical group O1[SiH2]O[SiH2]O[SiH2]1 JJRDHFIVAPVZJN-UHFFFAOYSA-N 0.000 description 1
- 125000002704 decyl group Chemical group [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])* 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- AQEFLFZSWDEAIP-UHFFFAOYSA-N di-tert-butyl ether Chemical compound CC(C)(C)OC(C)(C)C AQEFLFZSWDEAIP-UHFFFAOYSA-N 0.000 description 1
- 150000001993 dienes Chemical group 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [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])* 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000012676 equilibrium polymerization Methods 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RCNRJBWHLARWRP-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane;platinum Chemical compound [Pt].C=C[Si](C)(C)O[Si](C)(C)C=C RCNRJBWHLARWRP-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000005677 ethinylene group Chemical group [*:2]C#C[*:1] 0.000 description 1
- 229940093499 ethyl acetate Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical compound C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000006038 hexenyl group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical class [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 125000001400 nonyl 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])[H] 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl 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])[H] 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- RVZRBWKZFJCCIB-UHFFFAOYSA-N perfluorotributylamine Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)N(C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F RVZRBWKZFJCCIB-UHFFFAOYSA-N 0.000 description 1
- AQZYBQIAUSKCCS-UHFFFAOYSA-N perfluorotripentylamine Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)N(C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F AQZYBQIAUSKCCS-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002683 reaction inhibitor Substances 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 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
- 239000002210 silicon-based material Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- VNRWTCZXQWOWIG-UHFFFAOYSA-N tetrakis(trimethylsilyl) silicate Chemical compound C[Si](C)(C)O[Si](O[Si](C)(C)C)(O[Si](C)(C)C)O[Si](C)(C)C VNRWTCZXQWOWIG-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 125000000725 trifluoropropyl group Chemical group [H]C([H])(*)C([H])([H])C(F)(F)F 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- 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
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing 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
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
-
- 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
- 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
- C08L83/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
- C09D183/12—Block or graft copolymers containing polysiloxane sequences containing polyether sequences
-
- 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
- C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- 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
- C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
- C09J183/10—Block or graft copolymers containing polysiloxane sequences
- C09J183/12—Block or graft copolymers containing polysiloxane sequences containing polyether sequences
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- 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
Definitions
- the present invention uses a curable silicone composition, a release coating agent comprising the composition, particularly a release coating agent for a silicone pressure-sensitive adhesive (pressure-sensitive adhesive) having a low storage elasticity at low temperatures, and a release coating agent thereof.
- the present invention relates to a release film, particularly a release film for a silicone pressure-sensitive adhesive, and a laminate containing the release film, particularly a laminate containing a release film and a silicone pressure-sensitive adhesive.
- Silicone adhesives have excellent heat resistance, cold resistance, weather resistance, chemical resistance, electrical insulation, etc., so they have various functionalities such as industrial protective tapes, masking tapes, etc. It has been widely used as an adhesive for tapes and the like. Further, in recent years, it has also been used for so-called assembly applications represented by bonding optical components (display devices, functional films, lenses, etc.) for liquid crystal displays. Since the silicone adhesive strongly adheres to the surface coated with silicone rubber or silicone-based material, it is possible to use the usual silicone-based release agent used for acrylic-based or organic rubber-based adhesives. Instead, various curable silicone release agent compositions for forming a release film capable of easily removing the silicone pressure-sensitive adhesive have been proposed. The composition is coated on a flexible base material such as a plastic film as a release coating agent to form a release film, which is further laminated with a sheet-like or roll-like tape to which the release coating agent is bonded. Used as a body.
- a flexible base material such as a plastic film as a
- Patent Document 1 describes an organoas as a release agent for a silicone pressure-sensitive adhesive, which has at least 300 silicon atoms, 0.5 to 2 mol% of vinyl group-containing siloxane units, and 30 mol% of fluoroalkyl group-containing siloxane units. From polysiloxanes, organohydrogenpolysiloxanes that have at least two silicon atom-bonded hydrogen atoms per molecule and are compatible with the organopolysiloxane, hydrosilylation reaction catalysts, and hydrosilylation reaction inhibitors. A curable coating composition has been proposed.
- Patent Document 2 has at least two alkenyl group-containing organic groups bonded to silicon in one molecule, and a fluorine-containing substituent (plural fluoro (poly)) bonded to a silicon atom in one molecule.
- a release agent composition for use has been proposed.
- Patent Document 3 describes a mold release agent composition for a silicone pressure-sensitive adhesive containing two types of fluoroalkyl-modified polydimethylsiloxane having different amounts of alkenyl groups for the purpose of light peeling, and the present invention is formed by applying the same to a substrate.
- a release sheet has been proposed.
- Patent Document 4 contains at least two alkenyl groups bonded to a silicon atom in one molecule, and a fluoroalkyl group and a fluoropolyether group as two types of hydrogen-containing substituents bonded to the silicon atom.
- Organopolysiloxane in which the content of the fluoropolyether group is 1 to 99 mol% with respect to the total of the fluoroalkyl group and the fluoropolyether group, each having at least one hydrogen atom bonded to a silicon atom in one molecule.
- a silicone composition for forming a differential release agent for a silicone pressure-sensitive adhesive containing at least three organohydrogenpolysiloxanes and a platinum group metal-based catalyst has been proposed.
- Patent Document 5 describes a release sheet containing an organosiloxane release control agent having a fluorine atom-containing organic group and no hydrosilylation-reactive group, a release agent composition containing the same, and a cured layer made of the cured product. Has been proposed.
- Patent Documents 6 and 7 describe a fluoro (poly) ether-modified organopolysiloxane having an alkenyl group and a fluoro (poly) ether-containing organic group, an alkenyl group, and a fluoroalkyl group having a fluoroalkyl group having 1 to 12 carbon atoms.
- a curable silicone composition characterized by containing a specific ratio of the contained organopolysiloxane, a release sheet containing a release layer composed of a cured product obtained by curing the curable silicone composition, and a silicone pressure-sensitive adhesive layer laminated on the release layer.
- a laminate consisting of structural units has been proposed.
- the release film is peeled off from the peelable laminate containing the silicone pressure-sensitive adhesive (also referred to as "pressure-sensitive adhesive", the same applies hereinafter), the work efficiency is improved and the peeled silicone pressure-sensitive adhesive is used. A lower and more stable peeling force is required to prevent surface roughness and the like.
- silicone-based optical transparent pressure-sensitive adhesives OCA
- a pressure-sensitive adhesive layer having sufficient viscoelasticity and a low storage elastic modulus is required.
- an object of the present invention is that even if the peeling layer is a thin layer, it can be peeled from a silicone pressure-sensitive adhesive having a low storage elasticity at a low temperature with a low peeling force, and the silicone pressure-sensitive adhesive can be peeled off.
- a release film having a stable release force, a release agent for such a release film, and a curable silicone composition that can be used as a release agent, as well as a substrate, a silicone pressure-sensitive adhesive layer, and a release agent layer. Is to provide a laminate comprising.
- the release film generally has a release layer formed by coating a release agent on a flexible base material such as a plastic film.
- the present inventor has a fluoro (poly) ether having at least two alkenyl groups in one molecule and having a fluoro (poly) ether-containing organic group.
- the present invention was completed by discovering that the above-mentioned problems can be solved by a hydrosilylation reaction-curable silicone composition using a combination of organopolysiloxane having a fluorine atom-containing organic group and no hydrosilylation-reactive group. did.
- the curable silicone composition according to the present invention is hydrosilylation reaction curable, uses a mixture of an organopolysiloxane having a specific fluorine-containing organic group and an alkenyl group as a main agent, and further contributes to the hydrosilylation reaction. It is characterized by the addition of an organopolysiloxane having a fluorine-containing organic group that does not. Further, a release coating agent, a release film, and a laminate, in which the release layer obtained by curing the curable silicone composition is used as a release layer for a silicone pressure-sensitive adhesive, particularly a silicone pressure-sensitive adhesive having a low storage elastic modulus at a low temperature. Characterized by the body.
- the curable silicone composition of the present invention is (A) Fluorine-containing organopolysiloxane mixture obtained by mixing the following components (A1) and (A2) in a mass ratio of 1/99 to 99/1: (A1) A fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoro (poly) ether-containing organic group. (A2) A fluoroalkyl group-containing organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoroalkyl group having 1 to 12 carbon atoms.
- (B) Organohydrogenpolysiloxane having at least three silicon atom-bonded hydrogen atoms in one molecule,
- (C) Organopolysiloxane having a fluorine atom-containing organic group and no hydrosilylation-reactive group. It contains (D) a catalyst for hydrosilylation reaction and (E) an organic solvent.
- the above-mentioned problems are a release coating agent, a release film, and a release film in which the release layer obtained by curing the curable silicone composition is used as a release layer for a silicone pressure-sensitive adhesive having a storage elastic modulus of 5 MPa or less at ⁇ 20 ° C. It can be solved by the laminate.
- a silicone pressure-sensitive adhesive that adheres to the release layer even if the thickness of the release layer is thin, particularly a silicone pressure-sensitive adhesive having a low storage elastic modulus at low temperatures. It is possible to form a release film that can be released from the release layer with a low release force. Further, in the release film and the laminate of the present invention, the silicone pressure-sensitive adhesive disposed on the release layer (the pressure-sensitive adhesive formed by the curing reaction on the release layer, and the release layer attached to the already-formed pressure-sensitive adhesive).
- the storage elastic modulus at ⁇ 20 ° C. which was difficult to handle and produce a releaseable laminate with a conventional release agent, was increased.
- silicone pressure-sensitive adhesives of 5 MPa or less especially sheet-like / film-like pressure-sensitive adhesives, a peelable film and a peelable laminate exhibiting low peeling power and good peeling characteristics can be provided, so that good viscoelasticity at low temperature can be obtained. It enables the provided silicone adhesive and its industrial range of use to be expanded.
- the curable silicone composition of the present invention is (A) Fluorine-containing organopolysiloxane mixture obtained by mixing the following components (A1) and (A2) in a mass ratio of 1/99 to 99/1: (A1) A fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoro (poly) ether-containing organic group. (A2) A fluoroalkyl group-containing organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoroalkyl group having 1 to 12 carbon atoms.
- (B) Organohydrogenpolysiloxane having at least three silicon atom-bonded hydrogen atoms in one molecule,
- (C) Organopolysiloxane having a fluorine atom-containing organic group and no hydrosilylation-reactive group. It contains (D) a catalyst for hydrosilylation reaction, and (E) an organic solvent, and may optionally contain (F) a hydrosilylation reaction control agent and other optional components.
- the component (A) is a fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in the molecule (A1) and having a fluoro (poly) ether-containing organic group, and the (A2) molecule. It has at least two alkenyl groups within and is C s F 2s + 1 -R- (in the formula, R is an independently divalent hydrocarbon group and s is an integer of 1 to 20).
- the component (A) contains the component (A1) and the component (A2) in a mass ratio of 1/99 to 99/1, but the component (A1) and the component (A2) are 1.5 / 98.5 to 80 /. It is preferably contained in a mass ratio of 20, more preferably in a mass ratio of 2/98 to 70/30, and particularly preferably in a mass ratio of 2/98 to 45/55.
- the peeling force against the silicone adhesive is lower than that estimated by the additive average based on the result when the component (A1) or the component (A2) is used alone.
- the peeling force can be obtained, and when used in combination with the component (C) described later, the peeling force between the silicone pressure-sensitive adhesive layer having a low storage elastic modulus and the peeling layer can be sufficiently reduced at a low temperature, and the peeling force can be sufficiently reduced.
- the surface of the silicone adhesive after peeling can maintain a uniform adhesive surface with less roughness and wrinkles.
- the molecular structure of the component (A1) and the component (A2) is not limited, and examples thereof include linear, branched, linear with partially branched, resinous, and cyclic, preferably linear or partially. It is a linear chain with branches.
- R 1 is the same or different, and independently, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, and an aralkyl group having 7 to 12 carbon atoms.
- A is a positive number
- b is a positive number
- c is 0 or a positive number
- d is 0 or a positive number
- It is preferably an organopolysiloxane represented by.
- a to d in the above formula (I) a is 2 or more, preferably an integer of 2 to 6
- b is 1 or more, preferably an integer of 1 to 5,000, and more preferably 30 to 3.
- R 1 may be a small amount of a hydroxyl group or an alkoxy group as long as the object of the present invention is not impaired.
- the methyl group is preferable as the alkyl group having 1 to 12 carbon atoms that can be represented by R 1 .
- the alkenyl group having 2 to 12 carbon atoms that can be represented by R 1 is preferably a vinyl group or a hexenyl group, and a vinyl group is particularly preferable.
- at least two R 1s are alkenyl groups, and the vinyl group-equivalent content of the alkenyl groups is not particularly limited as long as it can be used to form a curable composition. 2.0% by mass or less is preferable, 1.0% by mass or less is more preferable, and 0.5% by mass or less is further preferable.
- the vinyl group-equivalent content means a content calculated by replacing an alkenyl group other than the vinyl group with the mass of an equimolar vinyl group.
- examples of the aryl group having 6 to 12 carbon atoms that R 1 can represent include a phenyl group, a tolyl group, and a xylyl group, and a phenyl group is preferable.
- a benzyl group and a phenylethyl group are exemplified as the aralkyl group having 7 to 12 carbon atoms that can be represented by R 1 .
- Equation (1) F (CF 2 O) a1 (CF 2 CF 2 O) a2 (CF 2 CH 2 O) a3 [CF (CF 3 ) CF 2 O] a4 [CF (CF 3 ) CH 2 O] a5 (CF 2 CF 2 CF 2 O) a6 (CF 2 CF 2 CH 2 O) a7 (CF (CF 3 )) a8 (CF 2 ) a9 (CH 2 ) a10 -O- [CF (CF 3 )] a11 ( CF 2 ) a12 (CH 2 ) a13- (In the formula, a1 to a13 are integers of 0 or more.
- a1 to a9 is an integer of 1 or more.
- the total of a1 to a10 is preferably 21 or less, and a11 to a13.
- the total is preferably 6 or less.
- Repeating unit in a10 and
- the repeating units in a13 may be randomly combined.
- the fluoro (poly) ether-containing organic group of R 1 is more preferably a group represented by any of the following formulas (2), (3), or (4).
- Equation (2) F [CF (CF 3 ) CF 2 O] b1 [CF (CF 3 ) CH 2 O] b2- [CF (CF 3 )] b3 (CF 2 ) b4 (CH 2 ) b5-
- b1 to b5 are integers of 0 or more
- b1 + b2 is an integer of 1 or more
- b3 + b4 + b5 is an integer of 0 or more.
- B1 + b2 is preferably 21 or less, and preferably 11 or less. More preferably, it is more preferably 6 or less.
- b3 + b4 + b5 is 6 or less. Further, the repeating units in (CF (CF 3 )) b3 (CF 2 ) b4 (CH 2 ) b5 are random. May be combined with.) Equation (3): F (CF 2 CF 2 CF 2 O) c1 (CF 2 CF 2 CH 2 O) c2- [CF (CF 3 )] c3 (CF 2 ) c4 (CH 2 ) c5- (In the formula, c1 to c5 are integers of 0 or more, c1 + c2 is an integer of 1 or more, c3 + c4 + c5 is an integer of 0 or more.
- C1 + c2 is preferably 21 or less, preferably 11 or less. Is more preferably 6 or less, and c3 + c4 + c5 is preferably 6 or less. Further, the repeating units in (CF (CF 3 )) c3 (CF 2 ) c4 (CH 2 ) c5 are each. It may be randomly combined.) Equation (4): F (CF 2 ) d1 (CH 2 ) d2 -O- (CH 2 ) d3- (In the equation, d1 and d2 are each an integer of 1 or more, d3 is an integer of 0 or more. D1 is preferably 10 or less, and d2 and d3 are each preferably 6 or less.)
- n is preferably 1 to 20, more preferably 1 to 10, and most preferably 1 to 5.
- m is preferably 1 to 6.
- a small amount of the following fluoro (poly) ether-containing organic group may be bonded to the silicon atom.
- o is preferably 1 to 20, more preferably 1 to 10, and most preferably 1 to 5.
- p is preferably 1 to 6.
- organopolysiloxane of the formula (I) has two or more fluoro (poly) ether-containing organic groups per molecule, they may be the same or different from each other.
- component (A1) include, but are not limited to, fluoro (poly) ether group-containing organopolysiloxanes listed below.
- Me and Vi represent a methyl group and a vinyl group, respectively
- F1a, F1b, F1c, F1d, and F1e represent the groups shown below, respectively.
- F1a CF 3 CF 2 CF 2 O-CF (CF 3 ) CH 2 O (CH 2 ) 3-
- F1b F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
- F1c F [CF (CF 3 ) CF 2 O] 3 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
- F1d F [CF (CF 3 ) CF 2 O] 5 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
- F1e F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CF 2 O (CH 2 ) 3 -
- polysiloxanes can be produced by conventionally known methods.
- a dichlorosilane having a fluoro (poly) ether group is produced by the method proposed in JP-A-4-28273, and the chlorine atom of the dichlorosilane is converted into a dimethylsiloxy group by the method proposed in JP-A-3-197484.
- Fluoro (poly) ether is produced by substituting with, and producing a bis (hydride siloxy) silane having a fluoro (poly) ether group, and dehydrogenating in the molecule using the method proposed in JP-A-6-321968.
- the alkenyl functional fluoro (poly) ether-modified organopolysiloxane used as the component (A1) of the present invention is a silicon atom-bonded hydrogen atom-containing polysiloxane and a fluoro (poly) ether group-containing alkenyl ether having a chemical amount or less.
- a fluoro (poly) ether group having a chemical amount or less.
- component (A1) produced by this method include, but are not limited to, the fluoro (poly) ether group-containing organopolysiloxanes listed below.
- Me, Vi, and Hex represent a methyl group, a vinyl group, and an n-hexenyl group, respectively
- F1b, F1f, and F1g represent the groups shown below, respectively.
- F1b F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CH 2 O (CH 2 ) 3 - F1f: F [CF (CF 3 ) CF 2 O] 3 CF (CF 3 ) CH 2 O (CH 2 ) 3- , And F [CF (CF 3 ) CF 2 O] 4 CF (CF 3 ) CH 2 O (CH 2 ) 3- , F1 g contained in a molar ratio of 1: 1: F [CF (CF 3 ) CF 2 O] 10 CF (CF 3 ) CH 2 O (CH 2 ) 3- Average composition formula: (Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 200 (Me (F1b) SiO 2/2 ) 100 (MeHexSiO 2/2 ) 4 Organopolysiloxane, represented by Average composition formula: (Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 250 (Me (F1f) SiO 2/2
- the content of fluorine atoms due to the fluoro (poly) ether-containing organic group in one molecule is preferably 30% by mass or more, more preferably 35% by mass or more, and further preferably 40% by mass or more. preferable. This is because when the content of fluorine atoms in the component (A1) is 30% by mass or more, the peelable film obtained by cross-linking the present curable silicone composition has a good peeling force against the silicone pressure-sensitive adhesive. Because it will be shown.
- the upper limit of the content of the fluorine atom in the component (A1) is not particularly limited, but if it is too high, the solubility of the component (A1) itself in the solvent is lowered and the handling workability is lowered. It is 60% by mass, preferably 55% by mass at most.
- one kind of fluoro (poly) ether group-containing organopolysiloxane may be used, or a mixture of two or more kinds of fluoro (poly) ether group-containing organopolysiloxanes having different average composition formulas may be used. You can also do it.
- the two or more kinds of fluoro (poly) ether group-containing organopolysiloxanes may be compatible with each other at 25 ° C. or incompatible with each other when mixed without a solvent.
- the average composition formula (II) (R 2 3 SiO 1/2 ) w (R 2 2 SiO 2/2 ) x (R 2 SiO 3/2 ) y (SiO 4/2 ) z (II)
- R 2 is the same or different, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or carbon.
- Organopolysiloxane represented by is exemplified.
- w is 2 or more, preferably an integer of 2 to 6
- x is 1 or more, preferably an integer of 1 to 5,000, and more preferably 30 to 4,000. It is an integer
- y is 0 or a positive number
- z is 0 or a positive number. If the degree of siloxane polymerization is less than the lower limit of the above range, it may be difficult to form a release layer when the curable silicone composition obtained by using the component is used as a release coating agent, and the degree of siloxane polymerization is low. If the upper limit of the above range is exceeded, the coatability (particularly, thin film coatability) of the obtained curable silicone composition may deteriorate.
- alkyl group alkenyl group, aryl group, and aralkyl group of R 2
- the same group as the group listed as R 1 can be exemplified.
- the fluoroalkyl group having 1 to 12 carbon atoms which is R 2 , is preferably C s F 2s + 1 -R- (in the formula, R is an independently divalent hydrocarbon group, and s is 1 to 20. It is a fluoroalkyl group represented by (an integer of 2), s is an integer in the range of 2 to 6, and R is particularly preferably an alkylene group having 2 to 6 carbon atoms.
- At least a part of the fluoroalkyl group in the component (A2) is a fluoroalkyl group represented by C4 F 9 -CH 2 CH 2- , that is, 3, 3, 4 , 4, 5, 5, 6, 6, 6-Nonafluorohexyl group is preferable, and all of the fluoroalkyl groups in the component (A2) are represented by C4 F 9 -CH 2 CH 2 -fluoro.
- Alkyl groups are particularly preferred.
- Examples of such (A2) component include the following organopolysiloxanes.
- Me, Vi, Hex, and F2a are methyl group, vinyl group, n-hexenyl group, and 3,3,4,4,5,5,6,6,6-nonafluoro, respectively. Represents a hexyl group.
- the content of the fluorine atom due to the fluoroalkyl-containing organic group in one molecule is preferably 30% by mass or more, more preferably 35% by mass or more, and further preferably 40% by mass or more. This is because when the content of fluorine atoms in the component (A2) is 30% by mass or more, the peelable film obtained by cross-linking the present curable silicone composition has a good peeling force against the silicone pressure-sensitive adhesive. Because it will be shown.
- the upper limit of the content of the fluorine atom in the component (A2) is not particularly limited, but if it is too high, the solubility of the component (A2) itself in the solvent is lowered and the handling workability is lowered. It is 60% by mass, preferably 55% by mass at most.
- the component (A1) and the component (A2) are preferably a combination of those that do not completely dissolve at 25 ° C. when they are mixed without a solvent.
- the meaning of "not completely compatible at 25 ° C when mixed without solvent” is a transparent glass vial with a lid and a mass ratio of two or more fluorine-containing organopolysiloxane mixtures of 1: 1. It means that the mixture becomes cloudy or separates into two phases immediately after being sufficiently stirred at 25 ° C. and after 24 hours, and does not exhibit a uniform and transparent liquid state.
- the fluorine-containing organopolysiloxane When the fluorine-containing organopolysiloxane is not liquid such as gum or paste at 25 ° C, it is heated to a temperature at which the mixture becomes liquid, and after sufficient stirring, immediately after cooling to 25 ° C and for 24 hours. It means that the mixture becomes cloudy or separates into two phases when visually observed later, and does not exhibit a uniform and transparent liquid state.
- one kind of fluoroalkyl group-containing organopolysiloxane can be used, or a mixture of two or more kinds of fluoroalkyl group-containing organopolysiloxanes having different average composition formulas can be used.
- two or more kinds of fluoroalkyl group-containing organopolysiloxanes may be compatible with each other at 25 ° C. or incompatible with each other when mixed without a solvent.
- the component (B) is an organopolysiloxane having at least three silicon atom-bonded hydrogen atoms (Si—H) in one molecule, and an addition reaction with the component (A) by a hydrosilylation reaction is carried out to carry out the addition reaction of the present invention.
- the component (B) may have a certain amount of a fluorine-containing organic selected from a fluoroalkyl group having 1 to 12 carbon atoms and a fluoro (poly) ether-containing organic group, and has the technical effect of the present invention. It is preferable from the viewpoint of.
- an alkyl group having 1 to 12 carbon atoms As the group other than the hydrogen atom bonded to the silicon atom in the component (B), an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, and a group having 1 to 12 carbon atoms. Twelve fluoroalkyl groups and fluoro (poly) ether-containing organic groups having 2 to 100 carbon atoms are exemplified. A small amount of hydroxyl group or alkoxy group may be bonded to the silicon atom in the component (B) as long as the object of the present invention is not impaired.
- the molecular structure of the component (B) is not limited, and examples thereof include linear, branched chain, linear with partial branch, resinous, and cyclic, preferably linear or linear with partial branch. It is a shape.
- R 3 is the same or different, and independently has a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, and 1 carbon atom.
- aa is a positive number
- ab is a positive number
- ac is 0 or a positive number
- ad is 0 or a positive number.
- the total of aa to ad is preferably in the range of 5 to 200, the lower limit thereof is 10 or 15, while the upper limit thereof is 150, 120, 100, Within any combination of upper and lower limits, such as 80, 70, 60, 50, or 40.
- the cross-linking of the present composition proceeds sufficiently, while it is not more than the upper limit of the above range. This is because the handling workability of this composition is good.
- Examples of the alkyl group having 1 to 12 carbon atoms that R3 can represent include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, and an undecyl group. Dodecyl groups are exemplified, and methyl groups are preferred.
- examples of the aryl group having 6 to 12 carbon atoms that R3 can represent include a phenyl group, a tolyl group, and a xylyl group, and a phenyl group is preferable.
- examples of the aralkyl group having 7 to 12 carbon atoms that R3 can represent include a benzyl group and a phenylethyl group.
- fluoroalkyl group having 1 to 12 carbon atoms which can be represented by R 3 , 3,3,3-trifluoropropyl group, 3,3,4,4,4-pentafluorobutyl group and 3,3,4 , 4,5,5,5-heptafluoropentyl group, 3,3,4,4,5,5,6,6,6-nonafluorohexyl group, 3,3,4,4,5,5,6 , 6,7,7,7-Undecafluoroheptyl group, 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl group, and 3, 3,4,4,5,5,6,6,7,7,8,8,9,9,9-pentadecafluorononyl group is exemplified and 3,3,4,4,5,5,5 -Heptafluoropentyl group, 3,3,4,4,5,5,6,6,6-nonafluorohexyl group, 3,3,4,4,5,5,6,6,7,7,7,7,7
- the fluoro (poly) ether-containing organic group that can be represented by R 3 the fluoro (poly) ether-containing organic group exemplified in R 1 is preferably used.
- the component (B) of the present invention may or may not have a group selected from a fluoroalkyl group and a fluoro (poly) ether-containing organic group.
- a group selected from a fluoroalkyl group and a fluoro (poly) ether-containing organic group When the composition of the present invention is cured using the composition of the present invention as a coating agent by combining with the above-mentioned component (A) without using an organohydrogenpolysiloxane having a fluorine atom-containing group as the component (B), A release layer having excellent release property, particularly excellent release property against a silicone pressure-sensitive adhesive, can be obtained, but from the viewpoint of the technical effect of the present invention, it is particularly preferable to have a certain amount of these fluorine atom-containing groups.
- the component (B) is represented by the above average composition formula ( III ), and R3 is a hydrogen atom, an alkyl group (particularly a methyl group), and a fluoroalkyl group and / or a fluoro (poly) ether-containing organic group.
- R3 is a hydrogen atom, an alkyl group (particularly a methyl group), and a fluoroalkyl group and / or a fluoro (poly) ether-containing organic group.
- the combination organopolyhydrogennesiloxane is particularly preferred.
- the component (B) of the present invention has a group selected from the group consisting of a fluoroalkyl group and a fluoro (poly) ether-containing organic group
- the fluoroalkyl group and / or the fluoro (poly) ether-containing organic group in the molecule may be used.
- the content of the derived fluorine atom is not particularly limited, but is preferably at least 20% by mass, at least 25% by mass, at least 30% by mass, or at least 35% by mass.
- the upper limit of the content of the fluorine atom in the component (B) is preferably 60% by mass at most, or 50% by mass at most.
- component (B) examples include, but are not limited to, the organopolysiloxanes listed below.
- Me, F2a and F1b are methyl groups, 3,3,4,4,5,5,6,6-nonafluorohexyl groups, respectively, and the following formulas: F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CH 2 O- (CH 2 ) 3- Represents the group indicated by.
- the content of the component (B) in the curable silicone composition of the present invention is such that the molar ratio of the silicon atom-bonded hydrogen atom to the alkenyl group in the component (A) is 0.1 to 20 (silicon atom-bonded hydrogen atom / alkenyl).
- the amount is within the range of (base), preferably the lower limit is 0.5, 0.8, or 1, while the upper limit is 18, 17, 16, 15, 14, 13, or 12. It is within the range of any combination of upper and lower limits. This is because when the content of the component (B) is not less than the lower limit of the above range, the crosslinking of the present curable silicone composition proceeds sufficiently, while when it is not more than the upper limit of the above range, it is obtained. This is because the characteristics of the peelable film can be stabilized.
- the component (C) is an organopolysiloxane having a fluorine atom-containing organic group in the molecule and no hydrosilylation-reactive group, and has excellent peelability in a film obtained by curing a silicone release agent composition. It is a peeling control agent component for imparting.
- the curable silicone composition according to the present invention and the release agent layer obtained by the effect thereof have not only low release characteristics but also conventional release agents by using the above-mentioned component (A) and component (C) in combination. Achieves a sufficiently low peeling force for silicone adhesives that could not achieve sufficient peeling characteristics, especially silicone adhesives with a low storage elastic modulus at low temperatures, and a uniform surface of the adhesive after peeling. Allows you to maintain.
- the molecular structure of the component (C) is not limited, and examples thereof include linear, branched chain, linear with partial branch, resinous, and cyclic, preferably linear or linear with partial branch. It is a shape.
- a component (C) the following average composition formula (IV): (R 4 3 SiO 1/2 ) ba (R 4 2 SiO 2/2 ) bb (R 4 SiO 3/2 ) bc (SiO 4/2 ) bd (IV) It is desirable that it is an organopolysiloxane represented by.
- R4 is the same or different, and independently has an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, and 1 to 12 carbon atoms. It is a fluoroalkyl group or a fluoro (poly) ether-containing organic group.
- ba is a positive number
- bb is a positive number
- bc is 0 or a positive number
- bd is 0 or a positive number.
- the total of ba to bd is preferably in the range of 1 to 5,000, and more preferably an integer of 30 to 3,000.
- alkyl group having 1 to 12 carbon atoms that can be represented by R 4 a methyl group is preferable.
- aryl group having 6 to 12 carbon atoms that can be represented by R 4 a phenyl group is preferable.
- examples of the aralkyl group having 7 to 12 carbon atoms that R4 can represent include a benzyl group and a phenylethyl group.
- the fluoroalkyl group having 1 to 12 carbon atoms that can be represented by R 4 the fluoroalkyl group having 1 to 12 carbon atoms exemplified in R 2 is preferably used.
- the fluoro (poly) ether-containing organic group that can be represented by R 4 the fluoro (poly) ether-containing organic group exemplified in R 1 is preferably used.
- the content of the fluorine atom due to the fluorine atom-containing organic group in the component (C) is preferably 20 to 40% by mass, more preferably 23 to 35% by mass, and 27 to 34% by mass. It is particularly preferable to have. On the other hand, if the content of the fluorine atom-containing organic group in one molecule is less than the lower limit or exceeds the upper limit, excellent peelability may not be obtained.
- the organopolysiloxane is characterized in that it does not contain a hydrosilylation-reactive group in the molecule in addition to the content of a fluorine atom-containing organic group.
- the organopolysiloxane contains a hydrosilylation-reactive group, particularly in a silicone stripping agent composition that is cured by the hydrosilylation reaction, the organopolysiloxane is used as a cross-linking agent or a main agent in the silicone cured product having a stripping property. It becomes easy to form a covalent bond, and as a peeling control agent, excellent peeling property may not be realized.
- the molecular chain end of the organopolysiloxane is preferably a trimethylsiloxy group or a silanol group, and more preferably one or more of the molecular chain ends is a trimethylsilyl group.
- such an organopolysiloxane includes a polymer chain double-ended trimethylsiloxy group-blocking methyl (3,3,3-trifluoropropyl) polysiloxane and a molecular chain double-ended trimethylsiloxy blocking methyl (3,3,3-).
- Trifluoropropyl) siloxane / dimethylsiloxane copolymer molecular chain double-ended trimethylsiloxy-blocking methyl (3,3,4,4,5,5,6,6,6-nonafluorohexyl) siloxane / dimethylsiloxane copolymer , Molecular chain double-ended trimethylsiloxy group-blocking methyl (3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl) siloxane / dimethylsiloxane copolymer, Methyl (3,3,3-trifluoropropyl) siloxane / dimethylsiloxane copolymer at both ends of the molecular chain, Methyl (3,3,4,4,5,5,6) at both ends of the molecular chain 6,6-Nonafluorohexyl) siloxane / dimethylsiloxane copolymer, molecular chain double-ended silano
- the content of the component (C) is in the range of 0.01 to 20 parts by mass, preferably 0.1 to 10 parts by mass with respect to 100 parts by mass of the component (A).
- the content of the component (C) is less than 0.01 part by mass with respect to 100 parts by mass of the component (A)
- the light peelability of the film obtained by curing (peeling cured film) to the adhesive substance is remarkable. May decrease.
- the content of the component (C) exceeds 20 parts by mass, the strength of the film obtained by curing is significantly lowered, and it may be difficult to obtain the desired release agent composition.
- one of these organopolysiloxanes can be used alone or in combination of two or more.
- the component (D) is a catalyst for a hydrosilylation reaction that promotes curing of the present curable silicone composition by a hydrosilylation reaction, and examples thereof include platinum-based catalysts, rhodium-based catalysts, and palladium-based catalysts, and platinum-based catalysts are preferable. It is a catalyst.
- the platinum-based catalyst include platinum fine powder, platinum black, platinum-supported silica fine powder, platinum-supported activated carbon, platinum chloride acid, an alcohol solution of platinum chloride, an olefin complex of platinum, and an alkenylsiloxane complex of platinum.
- the content of the component (D) is an amount that promotes the curing of the present curable silicone composition, and specifically, with respect to the present curable silicone composition, a metal atom, preferably a platinum atom in the catalyst. Is an amount in the range of 0.1 to 1,000 ppm in mass units. This is because when the content of the component (D) is not less than the lower limit of the above range, the curing of the obtained curable silicone composition proceeds sufficiently, while when it is not more than the upper limit of the above range, it is obtained. This is because it becomes difficult for the cured product to be colored.
- the component (E) is an arbitrary organic solvent capable of uniformly dissolving the fluorine-containing organopolysiloxane mixture as the component (A) and incompatible with the entire composition.
- “compatibility” means to give a uniform and transparent liquid without turbidity in appearance at 25 ° C.
- the viscosity of the curable silicone composition can be lowered, and the coating workability and the wettability to the substrate can be improved.
- additional organic solvents may be added, provided that the appearance of the curable silicone composition can be kept transparent and uniform at 25 ° C. from the time the composition is prepared until it is used. You may use it.
- additional organic solvents are not particularly limited, and aromatic hydrocarbon solvents such as toluene and xylene, aliphatic hydrocarbon solvents such as hexane, heptane, octane, isooctane, decane, cyclohexane, methylcyclohexane and isoparaffin, Hydrocarbon solvents such as industrial gasoline (rubber volatile oil, etc.), petroleum benzine, solvent naphtha, etc .; acetone, methyl ethyl ketone, 2-pentanone, 3-pentanone, 2-hexanone, 2-heptanone, 4-heptanone, methylisobutylketone, Ketone solvents such as diisobutylketone, aceton
- 3,4,4,5,5,6,6,6-Fluorine-modified solvent other than tridecafluorohexane for example, a fluorine-modified aromatic hydrocarbon solvent such as benzotrifluorolide, perfluoro (2-butyltetrachloride).
- Fluoro-modified ether solvent such as, perfluorotributylamine, perfluorotripentylamine and other fluorine-modified alkylamine solvent, And two or more mixed solvents selected from these are exemplified.
- the content of the component (E) is an amount required to uniformly dissolve the entire curable silicone composition, and is 10,000 parts by mass or less with respect to 100 parts by mass of the component (A), which is 20. It is preferably in the range of ⁇ 5,000 parts by mass.
- the present curable silicone composition may contain (F) a hydrosilylation reaction control agent in order to control the cross-linking reaction.
- a hydrosilylation reaction control agent in order to control the cross-linking reaction.
- component (F) 1-ethynylcyclohexane-1-ol, 2-methyl-3-butin-2-ol, 3,5-dimethyl-1-hexin-3-ol, 2-phenyl-3-butin- Alkyne alcohols such as 2-ol; enein compounds such as 3-methyl-3-penten-1-in and 3,5-dimethyl-3-hexene-1-in; 1,3,5,7-tetramethyl-1 , 3,5,7-Tetravinylcyclotetrasiloxane, 1,3,5,7-Tetramethyl-1,3,5,7-Tetrahexenylcyclotetrasiloxane and other methylalkenylsiloxane oligomers; dimethylbis (3-methyl) Alkyneoxysilanes such
- the content of the component (F) is not limited and gives a sufficient pot life to the present curable silicone composition
- the amount thereof is based on 100 parts by mass of the component (A). , 0.01 to 5 parts by mass, preferably 0.05 to 5 parts by mass, or preferably 0.05 to 3 parts by mass.
- the present curable silicone composition contains a photopolymerization initiator, an antioxidant, a reactive diluent, a leveling agent, a filler, an antioxidant, an antifoaming agent, and a pigment. You may use an additive selected from the above.
- the curable silicone composition of the present invention is preferably used as a release coating agent, and is suitable for use as a release coating agent for silicone pressure-sensitive adhesives.
- it is most suitable for use as a release coating agent for silicone pressure-sensitive adhesives having a low storage elastic modulus at low temperatures.
- a silicone pressure-sensitive adhesive having a storage elastic modulus at ⁇ 20 ° C. of 5 MPa or less, preferably 2.5 MPa or less, more preferably 1.0 MPa or less a uniform pressure-sensitive adhesive layer surface with low peeling force after peeling. This greatly expands the industrial applicability of silicone pressure-sensitive adhesive films / sheets, for which sufficient handling workability could not be guaranteed with conventional release agents.
- the present invention also relates to a release film containing a substrate, particularly a film-like substrate, and a release layer made of a cured product obtained by curing the release coating agent of the present invention.
- a release film can be produced, for example, by applying the curable silicone composition of the present invention to a film-like substrate and curing the curable silicone composition.
- the release film of the present invention is particularly suitable for use as a silicone pressure-sensitive adhesive.
- the base material used for the release film a film-like base material selected from paper, plastic film, glass, metal and the like can be used.
- the substrate is preferably a plastic film, more preferably a polyester film.
- both the base material and the release layer are light-transmitting.
- the thickness of the release layer is preferably 2.0 ⁇ m or less, 1.0 ⁇ m or less, or 0.5 ⁇ m or less, more preferably 0.4 ⁇ m or less, and even more preferably 0.3 ⁇ m or less. Further, it is preferably 0.05 ⁇ m or more, and more preferably 0.1 ⁇ m or more. This is because when the film thickness is at least the lower limit of the above range, the peeling force of the obtained peeling layer is sufficiently low, while when it is at least the upper limit of the above range, the light transmittance of the peeling layer is particularly high. Because it is excellent.
- the present invention is at least a laminate including a peeling layer made of a cured product obtained by curing the curable silicone composition of the present invention and a pressure-sensitive adhesive layer arranged opposite to the peeling layer, particularly a structure including a silicone pressure-sensitive adhesive layer. It also affects the body.
- the curable silicone composition can also be referred to as a release coating agent.
- the meaning of "opposing" means that the release layer and the pressure-sensitive adhesive layer are in direct contact with each other. Therefore, in general, in the present invention, the release layer and the pressure-sensitive adhesive layer are arranged so as to face each other.
- the structure of the laminate of the present invention will be described by taking a silicone pressure-sensitive adhesive as an example of the pressure-sensitive adhesive, but the pressure-sensitive adhesive is not limited to the silicone pressure-sensitive adhesive.
- the laminate according to the present invention may be a laminate having any structure as long as it includes a structure in which the above-mentioned release layer and the silicone pressure-sensitive adhesive layer are arranged so as to face each other.
- An example of a specific laminated body will be described below.
- Examples of the structure of the laminated body of the present invention include (a) to (d) shown below. These specific configurations are, for example, the same as those disclosed by the applicant in Patent Documents 6 and 7, and the release layer thereof is cured by curing the curable silicone composition of the present invention.
- a silicone pressure-sensitive adhesive layer having a storage elastic modulus of 5 MPa or less at ⁇ 20 ° C. can be used instead of the layer, preferably as the silicone pressure-sensitive adhesive layer.
- (C) A composition composed of a first base material / a first peeling layer / a silicone pressure-sensitive adhesive layer / a second peeling layer / a second base material.
- (D) A configuration in which two or more structural units composed of a base material / a first release layer / a silicone pressure-sensitive adhesive layer / a second release layer are continuously stacked.
- a discontinuous or continuous base material can be used.
- the laminated body is in the form of a sheet, and when the continuous one is used, the substrate is formed.
- the laminated body is in the form of a roll.
- the base material is preferably in the form of a sheet or a film, particularly preferably in the form of a film, and a base material similar to the base material used for the release film can be used. Further, either a light-transmitting material or a light-impermeable material can be used as the base material, and when a plurality of base materials are used, both may be arbitrarily combined depending on the purpose.
- the laminate of the present invention may be in the form of a laminated sheet in which a plurality of sheet-like members, which are a base material / a release layer / a silicone pressure-sensitive adhesive layer, are vertically laminated, and may have a roll-like shape, for example, a suitable cylinder. It may be in the shape of a roll or in the shape of a roll wound around a tubular core.
- the first release layer was arranged on one side of both surfaces of the silicone adhesive layer, and the second release layer was arranged on the other side.
- at least one of the first release layer and the second release layer is a cured product obtained by curing the release coating agent of the present invention. It needs to be a peeling layer made of, but here, when peeling the silicone adhesive from the first peeling layer (F1) and when peeling the silicone adhesive from the second peeling layer.
- the peeling force (F2) of the above is preferably different.
- the peeling force difference is preferably, for example, 10 gf / inch or more, and more preferably 20 gf / inch or more.
- Examples of the method for realizing the above-mentioned peeling force difference include a method of selecting a method for forming the facing surface as described below, a method of making the types of the two peeling layers different, and the like.
- the thickness of the release layer is preferably 2.0 ⁇ m, 1.0 ⁇ m, or 0.5 ⁇ m or less, more preferably 0.4 ⁇ m or less, and 0.3 ⁇ m or less, respectively. Is even more preferable. Further, it is preferably 0.05 ⁇ m or more, and more preferably 0.1 ⁇ m or more. This is because when the film thickness of the release layer is not less than the lower limit of the above range, the peeling force of the release layer from the silicone adhesive is sufficiently low, while when it is not more than the upper limit of the above range. This is because the release layer has particularly excellent light transmission and is economical.
- the silicone pressure-sensitive adhesive composition or the curable silicone pressure-sensitive adhesive composition that can be used for the laminate of the present invention is not limited to a specific one, and is arbitrary that matches the intended use of the laminate, for example, the use as an adhesive tape. However, a silicone pressure-sensitive adhesive having a low storage elastic modulus at a low temperature is particularly preferably used.
- the curing mechanism of the curable silicone pressure-sensitive adhesive is not particularly limited, and hydrosilylated curable, peroxide-curable, photocurable, etc. are used, but it can be cured at a relatively low temperature and can be used as a substrate or applied. Hydrosilylated curable materials, which can reduce the influence of heat on the material and are economical in terms of simplicity of the process, are preferably used.
- the release layer according to the present invention is extremely useful for the release layer according to the present invention to be applied to a silicone pressure-sensitive adhesive having a low storage elastic modulus at a low temperature.
- a silicone pressure-sensitive adhesive which can be designed so that the composition is below room temperature, has a low storage elastic modulus at a low temperature, and has a sufficiently large elongation at break.
- the silicone pressure-sensitive adhesive composition proposed by the applicant in International Publication No. 2017/188308, International Publication No. 2020/32285, International Publication No. 2020/32286, etc.
- a silicone pressure-sensitive adhesive layer having a ratio of 5 MPa or less, preferably 2.5 MPa or less, more preferably 1.0 MPa or less can be particularly preferably used in the present invention.
- the peeling layer according to the present invention is not prevented from being applied to a silicone pressure-sensitive adhesive having a high storage elastic modulus at a low temperature, and has a sufficiently reduced peeling force against the silicone pressure-sensitive adhesive and uniform after peeling. The surface of the adhesive layer can be maintained.
- the thickness of the silicone pressure-sensitive adhesive layer of the laminate of the present invention is not particularly limited, but is preferably 0.1 to 300 ⁇ m, more preferably 0.5 to 200 ⁇ m.
- the silicone pressure-sensitive adhesive layer can be formed on the entire surface formed by the layer, or can be formed only on a part of the surface.
- the mode in which the silicone pressure-sensitive adhesive layer is formed only on a part of the surface is not particularly limited, but constitutes any shape other than, for example, one or more dots, one or more straight lines or curves, concentric circles, and the like.
- a silicone adhesive may be applied as described above.
- the release layer may also be formed on the entire surface formed by the release layer, but the release layer may be formed according to the shape formed by the silicone pressure-sensitive adhesive formed on the silicone pressure-sensitive adhesive layer.
- the method for producing the above-mentioned laminate of the present invention is not particularly limited, but some preferred methods are listed below.
- the first method for preparing the facing surface is A step of forming a first release film having a first release layer by applying and curing a release coating agent made of the curable silicone composition of the present invention on a film-like substrate (1); A curable silicone pressure-sensitive adhesive composition is applied and cured on the same film-like base material as the above-mentioned film-like base material or a second film-like base material different from the above-mentioned film-like base material to form a silicone pressure-sensitive adhesive layer. Step (2); and the step (3) of adhering the release layer of the first release film obtained by the above step (1) on the silicone pressure-sensitive adhesive layer obtained by the above step (2). Consists of.
- This preparation method is a method in which an already cured release layer and an already cured silicone pressure-sensitive adhesive layer are brought into contact with each other to form facing surfaces of both layers.
- the second method of preparing the facing surface is A step of forming a first release film having a first release layer by applying and curing a release coating agent made of the curable silicone composition of the present invention on a film-like substrate (1); The step (2); and the above step (2) of applying and curing the curable silicone pressure-sensitive adhesive composition on the first release film obtained by the above step (1) to form a silicone pressure-sensitive adhesive layer. Step of bonding the same film-like substrate as the film-like substrate or the film-like substrate different from the film substrate on the obtained silicone pressure-sensitive adhesive layer (3) Consists of.
- This preparation method is a method in which a curable silicone pressure-sensitive adhesive is applied onto an already cured release layer and cured to form facing surfaces of both layers.
- the second method often has a higher peeling force difference between the silicone pressure-sensitive adhesive and the peeling agent than the first method.
- the above-mentioned structural examples (a) to (d) of the laminate of the present invention can be manufactured, for example, by the same manufacturing method as those disclosed by the applicant in Patent Document 6 and Patent Document 7.
- the release layer is replaced with a cured layer obtained by curing the curable silicone composition of the present invention, and preferably as a silicone pressure-sensitive adhesive layer, the storage elastic modulus at ⁇ 20 ° C. is 5 MPa or less, preferably 2.5 MPa.
- a silicone pressure-sensitive adhesive layer of 1.0 MPa or less can be used more preferably.
- the facing surface between the silicone pressure-sensitive adhesive and the release agent the method corresponding to the above-mentioned facing surface preparation method (1) or (2) is appropriately used.
- the molar ratio (SiH / Vi ratio) of SiH groups in the dimethylsiloxane / methylhydrogensiloxane copolymer with both ends of the molecular chain sealed with trimethylsiloxy groups to the amount of alkenyl groups in vinyl-functional polydimethylsiloxane is 33. 0.7, the content of platinum metal with respect to the solid content was 30 ppm.
- PET polyethylene terephthalate
- Lumirror registered trademark
- the sample was cut to a width of 20 mm, and the adhesive layer surface was bonded to a PMMA plate (manufactured by Paltek, acrylicite L001, 50x120x2 mm) using a roller to obtain a test piece.
- the test piece using the PMMA plate has an adhesive force (with a width of 20 mm) at a tensile speed of 300 mm / min using a 180 ° peeling test method according to JIS Z0237 using an RTC-1210 tensile tester manufactured by Orientec. When the measurement was converted into the display unit gf / inch), it was 1490 gf / inch.
- the film was hollowed out to a diameter of 8 mm, attached to a parallel plate probe of a dynamic viscoelastic device (MCR301, manufactured by Antonio Par), and the storage elastic modulus at ⁇ 20 ° C. was measured and found to be 0.52 MPa.
- the measured temperature was in the range of ⁇ 70 ° C. to 200 ° C., the frequency was 1 Hz, and the temperature rising rate was 3 ° C./min.
- PET polyethylene terephthalate
- Lumirror registered trademark
- the "hydrosilylated curable silicone pressure-sensitive adhesive composition solution 1" of the above reference example was applied using an applicator so that the film thickness after curing was 50 ⁇ m, and the temperature was 150 ° C. It was heated for 3 minutes and cured to form a silicone pressure-sensitive adhesive layer.
- the PET film was bonded onto the obtained silicone pressure-sensitive adhesive layer using a 2 kg hand roller. The obtained film is cut to a width of 1 inch, and the "release film 1" is pulled in a 180 ° direction at a rate of 0.3 m / min with a tensile tester (RTC-1210 manufactured by Orientec) to 25 ° C. The force (peeling force) required to peel the "release film” from the silicone pressure-sensitive adhesive layer was measured.
- Organopolysiloxane represented by, having a vinyl group content of 0.16% by mass and a fluorine atom content of 38% by mass.
- the component (D) is (D) 1,3-divinyl-1,1,3,3-tetramethyldisiloxane platinum complex (the amount of platinum metal is 270 ppm with respect to the amount of solid content in the curable composition). ) was used.
- a curable silicone composition is prepared according to the composition shown in Table 1 below, and this is used as a release coating agent to prepare a release film according to the above-mentioned method, and the release film is released from the silicone pressure-sensitive adhesive layer. The peeling force at that time was measured. In addition, the surface condition of the silicone adhesive layer after the release film was peeled off was visually observed.
- the release layer according to the present invention is preferably applied to a silicone pressure-sensitive adhesive having a low storage elastic modulus at a low temperature, but is also applicable to a silicone pressure-sensitive adhesive having a high storage elastic modulus at a low temperature. It is possible, and this is shown in Reference Examples 4 to 7.
- Example 7 The curable silicone composition of Example 3 above is prepared, and this is used as a release coating agent to prepare a release film according to the above-mentioned method, and the release film is released from the silicone pressure-sensitive adhesive layer.
- the peeling force at the time of making was measured.
- the surface condition of the silicone adhesive layer after the release film was peeled off was visually observed.
- the peeling force was 9 gf / inch, and the surface condition of the silicone adhesive was uniform and free from roughness and wrinkles. Therefore, the evaluation was evaluated as “ ⁇ ”.
- the curable silicone compositions of Examples 1 to 5 according to the present invention realize much lower peeling force than Comparative Examples 1 to 3. Further, the surface of the silicone pressure-sensitive adhesive layer after the peeling liner made of the curable compositions of Examples 1 to 5 was peeled off was in a uniform state, and no roughness or wrinkles were observed. On the other hand, when the component (A) is used alone or the component (C) is not used, a sufficient reduction in peeling force can be realized for a silicone adhesive having a low storage elastic modulus at a low temperature. In particular, there is a strong concern that the silicone adhesive layer after peeling will be in a non-uniform state, limiting the range of industrial use. (Comparative Examples 1 to 3) As confirmed in Reference Example 7, the curable silicone composition according to the embodiment of the present invention can be sufficiently used even for a silicone pressure-sensitive adhesive having a storage elastic modulus exceeding 5 MPa at a low temperature.
- a release film provided with a release layer formed by using the curable silicone composition of the present invention as a release coating agent for a silicone pressure-sensitive adhesive is a silicone pressure-sensitive adhesive, particularly a silicone having a low storage elasticity at low temperature.
- the curable silicone of the present invention can be peeled off with a weak force, and the surface of the silicone adhesive after peeling off the peeling film can be kept uniform and the occurrence of roughness and wrinkles can be prevented.
- the composition is useful not only as a conventionally commercially available silicone pressure-sensitive adhesive, but also as a release coating agent for a release film for a silicone pressure-sensitive adhesive having a low storage elasticity at low temperature.
- the silicone pressure-sensitive adhesive having a low storage elastic modulus at a low temperature tends to be limited in its use because there are few release agents having good compatibility with it, contrary to its excellent performance.
- the release coating agent of the present invention tends to be limited. Will be available in the form of a silicone pressure-sensitive adhesive film / sheet with good peeling properties and low peelability, and it is strongly expected that its industrial application development will be expanded.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
Abstract
Description
(A)以下の(A1)成分及び(A2)成分を1/99~99/1の質量比で混合したフッ素含有オルガノポリシロキサン混合物:
(A1)一分子中に少なくとも2個のアルケニル基を有し、かつ、フルオロ(ポリ)エーテル含有有機基を有する、フルオロ(ポリ)エーテル変性オルガノポリシロキサン、
(A2)一分子中に少なくとも2個のアルケニル基を有し、かつ、炭素数1~12のフルオロアルキル基を有する、フルオロアルキル基含有オルガノポリシロキサン、
(B)一分子中にケイ素原子結合水素原子を少なくとも3個有するオルガノハイドロジェンポリシロキサン、
(C)フッ素原子含有有機基を有し、且つヒドロシリル化反応性基を含有しないオルガノポリシロキサン、
(D)ヒドロシリル化反応用触媒、並びに
(E)有機溶媒
を含むものである。 Specifically, the curable silicone composition of the present invention is
(A) Fluorine-containing organopolysiloxane mixture obtained by mixing the following components (A1) and (A2) in a mass ratio of 1/99 to 99/1:
(A1) A fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoro (poly) ether-containing organic group.
(A2) A fluoroalkyl group-containing organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoroalkyl group having 1 to 12 carbon atoms.
(B) Organohydrogenpolysiloxane having at least three silicon atom-bonded hydrogen atoms in one molecule,
(C) Organopolysiloxane having a fluorine atom-containing organic group and no hydrosilylation-reactive group.
It contains (D) a catalyst for hydrosilylation reaction and (E) an organic solvent.
本発明の硬化性シリコーン組成物は、
(A)以下の(A1)成分及び(A2)成分を1/99~99/1の質量比で混合したフッ素含有オルガノポリシロキサン混合物:
(A1)一分子中に少なくとも2個のアルケニル基を有し、かつ、フルオロ(ポリ)エーテル含有有機基を有する、フルオロ(ポリ)エーテル変性オルガノポリシロキサン、
(A2)一分子中に少なくとも2個のアルケニル基を有し、かつ、炭素数1~12のフルオロアルキル基を有する、フルオロアルキル基含有オルガノポリシロキサン、
(B)一分子中にケイ素原子結合水素原子を少なくとも3個有するオルガノハイドロジェンポリシロキサン、
(C)フッ素原子含有有機基を有し、且つヒドロシリル化反応性基を含有しないオルガノポリシロキサン、
(D)ヒドロシリル化反応用触媒、並びに
(E)有機溶媒
を含み、任意で(F)ヒドロシリル化反応制御剤およびその他の任意成分を含んでもよい。以下これらの必須成分およびその他の成分について説明する。 [Curable Silicone Composition]
The curable silicone composition of the present invention is
(A) Fluorine-containing organopolysiloxane mixture obtained by mixing the following components (A1) and (A2) in a mass ratio of 1/99 to 99/1:
(A1) A fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoro (poly) ether-containing organic group.
(A2) A fluoroalkyl group-containing organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoroalkyl group having 1 to 12 carbon atoms.
(B) Organohydrogenpolysiloxane having at least three silicon atom-bonded hydrogen atoms in one molecule,
(C) Organopolysiloxane having a fluorine atom-containing organic group and no hydrosilylation-reactive group.
It contains (D) a catalyst for hydrosilylation reaction, and (E) an organic solvent, and may optionally contain (F) a hydrosilylation reaction control agent and other optional components. Hereinafter, these essential components and other components will be described.
(A)成分は、(A1)分子内に少なくとも2個のアルケニル基を有し、かつ、フルオロ(ポリ)エーテル含有有機基を有する、フルオロ(ポリ)エーテル変性オルガノポリシロキサン、及び(A2)分子内に少なくとも2個のアルケニル基を有し、かつ、CsF2s+1-R-(式中、Rは、それぞれ独立に二価の炭化水素基であり、sは1~20の整数である)で表されるフルオロアルキル基を有する、フルオロアルキル基含有オルガノポリシロキサンを1/99~99/1の質量比で混合したフッ素含有オルガノポリシロキサン混合物である。(A)成分は、(A1)成分及び(A2)成分を1/99~99/1の質量比で含むが、(A1)成分及び(A2)成分を1.5/98.5~80/20の質量比で含むことが好ましく、2/98~70/30の質量比で含むことがより好ましく、2/98~45/55の質量比で含むことが特に好ましい。(A1)成分及び(A2)成分を併用すると、(A1)成分又は(A2)成分をそれぞれ単独で使用した場合の結果に基づいて相加平均により推定されるシリコーン粘着剤に対する剥離力よりも低い剥離力が得られ、かつ、後述する(C)成分と併用することで、低温下において貯蔵弾性率の低いシリコーン粘着剤層と剥離層の間の剥離力を十分に低減することができ、かつ、剥離した後のシリコーン粘着剤の表面が荒れや皺の少ない、均一な粘着面を維持することができる。 [(A) component]
The component (A) is a fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in the molecule (A1) and having a fluoro (poly) ether-containing organic group, and the (A2) molecule. It has at least two alkenyl groups within and is C s F 2s + 1 -R- (in the formula, R is an independently divalent hydrocarbon group and s is an integer of 1 to 20). It is a fluorine-containing organopolysiloxane mixture obtained by mixing a fluoroalkyl group-containing organopolysiloxane having a fluoroalkyl group represented by 1 in a mass ratio of 1/99 to 99/1. The component (A) contains the component (A1) and the component (A2) in a mass ratio of 1/99 to 99/1, but the component (A1) and the component (A2) are 1.5 / 98.5 to 80 /. It is preferably contained in a mass ratio of 20, more preferably in a mass ratio of 2/98 to 70/30, and particularly preferably in a mass ratio of 2/98 to 45/55. When the component (A1) and the component (A2) are used in combination, the peeling force against the silicone adhesive is lower than that estimated by the additive average based on the result when the component (A1) or the component (A2) is used alone. The peeling force can be obtained, and when used in combination with the component (C) described later, the peeling force between the silicone pressure-sensitive adhesive layer having a low storage elastic modulus and the peeling layer can be sufficiently reduced at a low temperature, and the peeling force can be sufficiently reduced. The surface of the silicone adhesive after peeling can maintain a uniform adhesive surface with less roughness and wrinkles.
(R1 3SiO1/2)a(R1 2SiO2/2)b(R1SiO3/2)c(SiO4/2)d (I)
(式中、R1は同じか又は異なり、それぞれ独立に、炭素数1~12のアルキル基、炭素数2~12のアルケニル基、炭素数6~12のアリール基、炭素数7~12のアラルキル基、又は炭素数2~30のフルオロ(ポリ)エーテル含有有機基であり、但し、一分子中、少なくとも2個のR1はアルケニル基であり、少なくとも1個はフルオロ(ポリ)エーテル含有有機基であり、aは正数、bは正数、cは0又は正数、dは0又は正数である)
で表されるオルガノポリシロキサンであることが好ましい。また、上記式(I)におけるa~dについて、aは2以上、好ましくは2~6の整数、bは1以上、好ましくは、1~5,000の整数、さらに好ましくは、30~3,000の整数であり、cは0又は正数、dは0又は正数である。シロキサン重合度が前記の範囲の下限未満では、当該成分を用いて得られる硬化性シリコーン組成物を剥離コーティング剤として用いたときに、剥離層の形成が困難になる場合があり、シロキサン重合度が前記の範囲の上限を超えると、得られる硬化性シリコーン組成物の塗工性(特に薄膜塗布性)が低下する場合がある。なお、式(I)において、R1は、本発明の目的を損なわない範囲で、少量の水酸基やアルコキシ基であってもよい。 As such a component (A1), the following average composition formula (I):
(R 1 3 SiO 1/2 ) a (R 1 2 SiO 2/2 ) b (R 1 SiO 3/2 ) c (SiO 4/2 ) d (I)
(In the formula, R 1 is the same or different, and independently, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, and an aralkyl group having 7 to 12 carbon atoms. A group or a fluoro (poly) ether-containing organic group having 2 to 30 carbon atoms, except that at least two R 1s in one molecule are alkenyl groups and at least one is a fluoro (poly) ether-containing organic group. A is a positive number, b is a positive number, c is 0 or a positive number, and d is 0 or a positive number)
It is preferably an organopolysiloxane represented by. Regarding a to d in the above formula (I), a is 2 or more, preferably an integer of 2 to 6, b is 1 or more, preferably an integer of 1 to 5,000, and more preferably 30 to 3. It is an integer of 000, where c is 0 or a positive number and d is 0 or a positive number. If the degree of siloxane polymerization is less than the lower limit of the above range, it may be difficult to form a release layer when the curable silicone composition obtained by using the component is used as a release coating agent, and the degree of siloxane polymerization is low. If the upper limit of the above range is exceeded, the coatability (particularly, thin film coatability) of the obtained curable silicone composition may deteriorate. In the formula (I), R 1 may be a small amount of a hydroxyl group or an alkoxy group as long as the object of the present invention is not impaired.
式(1): F(CF2O)a1(CF2CF2O)a2(CF2CH2O)a3[CF(CF3)CF2O]a4[CF(CF3)CH2O]a5(CF2CF2CF2O)a6(CF2CF2CH2O)a7(CF(CF3))a8(CF2)a9(CH2)a10-O-[CF(CF3)]a11(CF2)a12(CH2)a13-
(式中、a1~a13は0以上の整数である。ただし、a1~a9の少なくとも一つは1以上の整数である。a1~a10の合計は21以下であることが好ましく、a11~a13の合計は6以下であることが好ましい。また、(CF2O)a1(CF2CF2O)a2(CF2CH2O)a3[CF(CF3)CF2O]a4[CF(CF3)CH2O]a5(CF2CF2CF2O)a6(CF2CF2CH2O)a7[CF(CF3)]a8(CF2)a9(CH2)a10の中の繰り返し単位、及び(CH(CF3))a11(CF2)a12(CH2)a13の中の繰り返し単位はそれぞれランダムに結合されていてもよい。) In the formula (I), the group represented by the following formula (1) is exemplified as the fluoro (poly) ether-containing organic group of R1 .
Equation (1): F (CF 2 O) a1 (CF 2 CF 2 O) a2 (CF 2 CH 2 O) a3 [CF (CF 3 ) CF 2 O] a4 [CF (CF 3 ) CH 2 O] a5 (CF 2 CF 2 CF 2 O) a6 (CF 2 CF 2 CH 2 O) a7 (CF (CF 3 )) a8 (CF 2 ) a9 (CH 2 ) a10 -O- [CF (CF 3 )] a11 ( CF 2 ) a12 (CH 2 ) a13-
(In the formula, a1 to a13 are integers of 0 or more. However, at least one of a1 to a9 is an integer of 1 or more. The total of a1 to a10 is preferably 21 or less, and a11 to a13. The total is preferably 6 or less. Further, (CF 2 O) a1 (CF 2 CF 2 O) a2 (CF 2 CH 2 O) a3 [CF (CF 3 ) CF 2 O] a4 [CF (CF 3 ) ) CH 2 O] a5 (CF 2 CF 2 CF 2 O) a6 (CF 2 CF 2 CH 2 O) a7 [CF (CF 3 )] a8 (CF 2 ) a9 (CH 2 ) Repeating unit in a10 , And (CH (CF 3 )) a11 (CF 2 ) a12 (CH 2 ) The repeating units in a13 may be randomly combined.)
式(2): F[CF(CF3)CF2O]b1[CF(CF3)CH2O]b2-[CF(CF3)]b3(CF2)b4(CH2)b5-
(式中、b1~b5はそれぞれ0以上の整数であり、b1+b2は1以上の整数であり、b3+b4+b5は0以上の整数である。b1+b2は21以下であることが好ましく、11以下であることがより好ましく、6以下であることがさらに好ましい。b3+b4+b5は6以下であることが好ましい。また、(CF(CF3))b3(CF2)b4(CH2)b5の中の繰り返し単位はそれぞれランダムに結合されていてもよい。)
式(3): F(CF2CF2CF2O)c1(CF2CF2CH2O)c2-[CF(CF3)]c3(CF2)c4(CH2)c5-
(式中、c1~c5は0以上の整数であり、c1+c2は1以上の整数であり、c3+c4+c5は0以上の整数である。c1+c2は21以下であることが好ましく、11以下であることがより好ましく、6以下であることがさらに好ましい。c3+c4+c5は6以下であることが好ましい。また、(CF(CF3))c3(CF2)c4(CH2)c5の中の繰り返し単位はそれぞれランダムに結合されていてもよい。)
式(4): F(CF2)d1(CH2)d2-O-(CH2)d3-
(式中、d1及びd2はそれぞれ1以上の整数であり、d3は0以上の整数である。d1は10以下が好ましく、d2及びd3はそれぞれ6以下が好ましい。) The fluoro (poly) ether-containing organic group of R 1 is more preferably a group represented by any of the following formulas (2), (3), or (4).
Equation (2): F [CF (CF 3 ) CF 2 O] b1 [CF (CF 3 ) CH 2 O] b2- [CF (CF 3 )] b3 (CF 2 ) b4 (CH 2 ) b5-
(In the equation, b1 to b5 are integers of 0 or more, b1 + b2 is an integer of 1 or more, b3 + b4 + b5 is an integer of 0 or more. B1 + b2 is preferably 21 or less, and preferably 11 or less. More preferably, it is more preferably 6 or less. It is preferable that b3 + b4 + b5 is 6 or less. Further, the repeating units in (CF (CF 3 )) b3 (CF 2 ) b4 (CH 2 ) b5 are random. May be combined with.)
Equation (3): F (CF 2 CF 2 CF 2 O) c1 (CF 2 CF 2 CH 2 O) c2- [CF (CF 3 )] c3 (CF 2 ) c4 (CH 2 ) c5-
(In the formula, c1 to c5 are integers of 0 or more, c1 + c2 is an integer of 1 or more, c3 + c4 + c5 is an integer of 0 or more. C1 + c2 is preferably 21 or less, preferably 11 or less. Is more preferably 6 or less, and c3 + c4 + c5 is preferably 6 or less. Further, the repeating units in (CF (CF 3 )) c3 (CF 2 ) c4 (CH 2 ) c5 are each. It may be randomly combined.)
Equation (4): F (CF 2 ) d1 (CH 2 ) d2 -O- (CH 2 ) d3-
(In the equation, d1 and d2 are each an integer of 1 or more, d3 is an integer of 0 or more. D1 is preferably 10 or less, and d2 and d3 are each preferably 6 or less.)
F[CF(CF3)CF2O]nCF(CF3)CF2O(CH2)3-
F[CF(CF3)CF2O]nCF(CF3)CH2O(CH2)3-
F[CF(CF3)CF2O]n+1CF(CF3)(CH2)2-
F(CF2)m(CH2)2O(CH2)3-
上記各式において、nは1~20であることが好ましく、1~10であることがより好ましく、1~5であることが最も好ましい。またmは1~6であることが好ましい。 The following groups are exemplified as particularly preferable fluoro (poly) ether-containing organic groups.
F [CF (CF 3 ) CF 2 O] n CF (CF 3 ) CF 2 O (CH 2 ) 3 -
F [CF (CF 3 ) CF 2 O] n CF (CF 3 ) CH 2 O (CH 2 ) 3 -
F [CF (CF 3 ) CF 2 O] n + 1 CF (CF 3 ) (CH 2 ) 2-
F (CF 2 ) m (CH 2 ) 2 O (CH 2 ) 3 -
In each of the above formulas, n is preferably 1 to 20, more preferably 1 to 10, and most preferably 1 to 5. Further, m is preferably 1 to 6.
F[CF(CF3)CF2O]oCF(CF3)CF2O-
F[CF(CF3)CF2O]oCF(CF3)CH2O-
F(CF2)p(CH2)2O-
上記式において、oは1~20であることが好ましく、1~10であることがより好ましく、1~5であることが最も好ましい。またpは1~6であることが好ましい。 Further, a small amount of the following fluoro (poly) ether-containing organic group may be bonded to the silicon atom.
F [CF (CF 3 ) CF 2 O] o CF (CF 3 ) CF 2 O-
F [CF (CF 3 ) CF 2 O] o CF (CF 3 ) CH 2 O-
F (CF 2 ) p (CH 2 ) 2 O-
In the above formula, o is preferably 1 to 20, more preferably 1 to 10, and most preferably 1 to 5. Further, p is preferably 1 to 6.
F1a: CF3CF2CF2O-CF(CF3)CH2O(CH2)3-
F1b: F[CF(CF3)CF2O]2CF(CF3)CH2O(CH2)3-
F1c: F[CF(CF3)CF2O]3CF(CF3)CH2O(CH2)3-
F1d: F[CF(CF3)CF2O]5CF(CF3)CH2O(CH2)3-
F1e: F[CF(CF3)CF2O]2CF(CF3)CF2O(CH2)3-
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)240(Me(F1a)SiO2/2)120
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)245(Me(F1b)SiO2/2)120
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)240(Me(F1b)SiO2/2)120(MeViSiO2/2)3
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)240(Me(F1b)SiO2/2)120(MeViSiO2/2)6
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)660(Me(F1b)SiO2/2)330(MeViSiO2/2)6
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)300(Me(F1c)SiO2/2)100(MeViSiO2/2)3
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)240(Me(F1d)SiO2/2)120(MeViSiO2/2)3
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)245(Me(F1e)SiO2/2)120
で表されるオルガノポリシロキサン。 Specific examples of the component (A1) include, but are not limited to, fluoro (poly) ether group-containing organopolysiloxanes listed below. In the following formula, Me and Vi represent a methyl group and a vinyl group, respectively, and F1a, F1b, F1c, F1d, and F1e represent the groups shown below, respectively.
F1a: CF 3 CF 2 CF 2 O-CF (CF 3 ) CH 2 O (CH 2 ) 3-
F1b: F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
F1c: F [CF (CF 3 ) CF 2 O] 3 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
F1d: F [CF (CF 3 ) CF 2 O] 5 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
F1e: F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CF 2 O (CH 2 ) 3 -
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 240 (Me (F1a) SiO 2/2 ) 120
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 245 (Me (F1b) SiO 2/2 ) 120
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 240 (Me (F1b) SiO 2/2 ) 120 (MeViSiO 2/2 ) 3
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 240 (Me (F1b) SiO 2/2 ) 120 (MeViSiO 2/2 ) 6
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 660 (Me (F1b) SiO 2/2 ) 330 (MeViSiO 2/2 ) 6
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 300 (Me (F1c) SiO 2/2 ) 100 (MeViSiO 2/2 ) 3
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 240 (Me (F1d) SiO 2/2 ) 120 (MeViSiO 2/2 ) 3
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 245 (Me (F1e) SiO 2/2 ) 120
Organopolysiloxane represented by.
F1f: F[CF(CF3)CF2O]3CF(CF3)CH2O(CH2)3-、
及びF[CF(CF3)CF2O]4CF(CF3)CH2O(CH2)3-を、
1:1のモル比で含む
F1g: F[CF(CF3)CF2O]10CF(CF3)CH2O(CH2)3-
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)200(Me(F1b)SiO2/2)100(MeHexSiO2/2)4
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)250(Me(F1f)SiO2/2)110(MeHexSiO2/2)4
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)190(Me(F1g)SiO2/2)30(MeHexSiO2/2)2
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)230(Me(F1g)SiO2/2)35(MeHexSiO2/2)4
で表されるオルガノポリシロキサン。 F1b: F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CH 2 O (CH 2 ) 3 -
F1f: F [CF (CF 3 ) CF 2 O] 3 CF (CF 3 ) CH 2 O (CH 2 ) 3- ,
And F [CF (CF 3 ) CF 2 O] 4 CF (CF 3 ) CH 2 O (CH 2 ) 3- ,
F1 g contained in a molar ratio of 1: 1: F [CF (CF 3 ) CF 2 O] 10 CF (CF 3 ) CH 2 O (CH 2 ) 3-
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 200 (Me (F1b) SiO 2/2 ) 100 (MeHexSiO 2/2 ) 4
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 250 (Me (F1f) SiO 2/2 ) 110 (MeHexSiO 2/2 ) 4
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 190 (Me (F1g) SiO 2/2 ) 30 (MeHexSiO 2/2 ) 2
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 230 (Me (F1g) SiO 2/2 ) 35 (MeHexSiO 2/2 ) 4
Organopolysiloxane represented by.
(R2 3SiO1/2)w(R2 2SiO2/2)x(R2SiO3/2)y(SiO4/2)z (II)
(式中、R2は同じか又は異なり、炭素数1~12のアルキル基、炭素数2~12のアルケニル基、炭素数6~12のアリール基、炭素数7~12のアラルキル基、又は炭素原子数1~12のフルオロアルキル基であり、一分子中、少なくとも2個のR2はアルケニル基であり、少なくとも1個のR2は炭素原子数1~12のフルオロアルキル基であり、wは正数、xは正数、yは0又は正数、zは0又は正数である)
で表されるオルガノポリシロキサンが例示される。 Further, as the component (A2), the average composition formula (II):
(R 2 3 SiO 1/2 ) w (R 2 2 SiO 2/2 ) x (R 2 SiO 3/2 ) y (SiO 4/2 ) z (II)
(In the formula, R 2 is the same or different, an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or carbon. It is a fluoroalkyl group having 1 to 12 atoms, at least two R 2s in one molecule are alkenyl groups, at least one R 2 is a fluoroalkyl group having 1 to 12 carbon atoms, and w is. Positive number, x is positive number, y is 0 or positive number, z is 0 or positive number)
Organopolysiloxane represented by is exemplified.
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)750(Me(F2a)SiO2/2)750(MeViSiO2/2)20
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)440(Me(F2a)SiO2/2)330(MeViSiO2/2)10
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)440(Me(F2a)SiO2/2)330(MeHexSiO2/2)10
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)1450(Me(F2a)SiO2/2)1100(MeViSiO2/2)8
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)1450(Me(F2a)SiO2/2)1100(MeViSiO2/2)10
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)1250(Me(F2a)SiO2/2)1250(MeViSiO2/2)10
で表されるオルガノポリシロキサン、
平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)900(Me(F2a)SiO2/2)450(MeViSiO2/2)10
で表されるオルガノポリシロキサン。
これらから選択される1種又は2種以上を組み合わせて用いることができる。 Examples of such (A2) component include the following organopolysiloxanes. In the following formula, Me, Vi, Hex, and F2a are methyl group, vinyl group, n-hexenyl group, and 3,3,4,4,5,5,6,6,6-nonafluoro, respectively. Represents a hexyl group.
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 750 (Me (F2a) SiO 2/2 ) 750 (MeViSiO 2/2 ) 20
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 440 (Me (F2a) SiO 2/2 ) 330 (MeViSiO 2/2 ) 10
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 440 (Me (F2a) SiO 2/2 ) 330 (MeHexSiO 2/2 ) 10
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 1450 (Me (F2a) SiO 2/2 ) 1100 (MeViSiO 2/2 ) 8
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 1450 (Me (F2a) SiO 2/2 ) 1100 (MeViSiO 2/2 ) 10
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 1250 (Me (F2a) SiO 2/2 ) 1250 (MeViSiO 2/2 ) 10
Organopolysiloxane, represented by
Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 900 (Me (F2a) SiO 2/2 ) 450 (MeViSiO 2/2 ) 10
Organopolysiloxane represented by.
One kind or two or more kinds selected from these can be used in combination.
(B)成分は一分子中にケイ素原子結合水素原子(Si-H)を少なくとも3個有するオルガノポリシロキサンであり、(A)成分との間でヒドロシリル化反応による付加反応をして本発明の組成物を硬化させる成分である。特に、(B)成分は、炭素数1~12のフルオロアルキル基およびフルオロ(ポリ)エーテル含有有機基から選ばれるフッ素含有有機を一定量有するものであってよく、かつ、本発明の技術的効果の見地から好ましい。 [(B) component]
The component (B) is an organopolysiloxane having at least three silicon atom-bonded hydrogen atoms (Si—H) in one molecule, and an addition reaction with the component (A) by a hydrosilylation reaction is carried out to carry out the addition reaction of the present invention. A component that cures the composition. In particular, the component (B) may have a certain amount of a fluorine-containing organic selected from a fluoroalkyl group having 1 to 12 carbon atoms and a fluoro (poly) ether-containing organic group, and has the technical effect of the present invention. It is preferable from the viewpoint of.
(R3 3SiO1/2)aa(R3 2SiO2/2)ab(R3SiO3/2)ac(SiO4/2)ad (III)
で表されるオルガノポリシロキサンが例示される。 As such a component (B), the following average composition formula (III):
(R 3 3 SiO 1/2 ) aa (R 3 2 SiO 2/2 ) ab (R 3 SiO 3/2 ) ac (SiO 4/2 ) ad (III)
Organopolysiloxane represented by is exemplified.
F[CF(CF3)CF2O]2CF(CF3)CH2O-(CH2)3-
で示す基を表す。
平均組成式:
(Me3SiO1/2)2(Me(F2aSiO2/2)12(MeHSiO2/2)27
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)55(Me(F1bSiO2/2)25(MeHSiO2/2)25
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(MeHSiO2/2)50
で表されるオルガノポリシロキサン、
平均組成式:
(Me3SiO1/2)2(Me2SiO2/2)30(MeHSiO2/2)30
で表されるオルガノポリシロキサン、
平均組成式:
(Me2HSiO1/2)2(Me2SiO2/2)30(MeHSiO2/2)30
で表されるオルガノポリシロキサン。
これらから選択される1種又は2種以上を組み合わせて(B)成分として用いることができる。 Specific examples of the component (B) include, but are not limited to, the organopolysiloxanes listed below. In the following formulas, Me, F2a and F1b are methyl groups, 3,3,4,4,5,5,6,6-nonafluorohexyl groups, respectively, and the following formulas:
F [CF (CF 3 ) CF 2 O] 2 CF (CF 3 ) CH 2 O- (CH 2 ) 3-
Represents the group indicated by.
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me (F2aSiO 2/2 ) 12 (MeHSiO 2/2 ) 27
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 55 (Me (F1bSiO 2/2 ) 25 (MeHSiO 2/2 ) 25
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (MeHSiO 2/2 ) 50
Organopolysiloxane, represented by
Average composition formula:
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 30 (MeHSiO 2/2 ) 30
Organopolysiloxane, represented by
Average composition formula:
(Me 2 HSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 30 (MeHSiO 2/2 ) 30
Organopolysiloxane represented by.
One or a combination of two or more selected from these can be used as the component (B).
(C)成分は分子中にフッ素原子含有有機基を有し、且つヒドロシリル化反応性基を含有しないオルガノポリシロキサンであり、シリコーン剥離剤組成物を硬化して得られる皮膜に優れた剥離性を付与するための剥離コントロール剤成分である。本発明に係る硬化性シリコーン組成物およびその効果により得られる剥離剤層は、前記の(A)成分と(C)成分を併用することで、単なる低剥離特性だけでなく、従来の剥離剤では十分な剥離特性が実現できなかったシリコーン粘着剤、特に、低温における貯蔵弾性率が低いシリコーン粘着剤に対して十分に低い剥離力を実現し、かつ、剥離後の粘着剤表面が均一な状態を維持することを可能にする。 [(C) component]
The component (C) is an organopolysiloxane having a fluorine atom-containing organic group in the molecule and no hydrosilylation-reactive group, and has excellent peelability in a film obtained by curing a silicone release agent composition. It is a peeling control agent component for imparting. The curable silicone composition according to the present invention and the release agent layer obtained by the effect thereof have not only low release characteristics but also conventional release agents by using the above-mentioned component (A) and component (C) in combination. Achieves a sufficiently low peeling force for silicone adhesives that could not achieve sufficient peeling characteristics, especially silicone adhesives with a low storage elastic modulus at low temperatures, and a uniform surface of the adhesive after peeling. Allows you to maintain.
このような(C)成分としては、下記平均組成式(IV):
(R4 3SiO1/2)ba(R4 2SiO2/2)bb(R4SiO3/2)bc(SiO4/2)bd (IV)
で表されるオルガノポリシロキサンであることが望ましい。 The molecular structure of the component (C) is not limited, and examples thereof include linear, branched chain, linear with partial branch, resinous, and cyclic, preferably linear or linear with partial branch. It is a shape.
As such a component (C), the following average composition formula (IV):
(R 4 3 SiO 1/2 ) ba (R 4 2 SiO 2/2 ) bb (R 4 SiO 3/2 ) bc (SiO 4/2 ) bd (IV)
It is desirable that it is an organopolysiloxane represented by.
(D)成分は、本硬化性シリコーン組成物のヒドロシリル化反応による硬化を促進するヒドロシリル化反応用触媒であり、白金系触媒、ロジウム系触媒、及びパラジウム系触媒が例示され、好ましくは、白金系触媒である。この白金系触媒としては、白金微粉末、白金黒、白金担持シリカ微粉末、白金担持活性炭、塩化白金酸、及び塩化白金酸のアルコール溶液、白金のオレフィン錯体、並びに白金のアルケニルシロキサン錯体が例示される。 [(D) component]
The component (D) is a catalyst for a hydrosilylation reaction that promotes curing of the present curable silicone composition by a hydrosilylation reaction, and examples thereof include platinum-based catalysts, rhodium-based catalysts, and palladium-based catalysts, and platinum-based catalysts are preferable. It is a catalyst. Examples of the platinum-based catalyst include platinum fine powder, platinum black, platinum-supported silica fine powder, platinum-supported activated carbon, platinum chloride acid, an alcohol solution of platinum chloride, an olefin complex of platinum, and an alkenylsiloxane complex of platinum. To.
(E)成分は(A)成分であるフッ素含有オルガノポリシロキサン混合物を均一に相溶させるとともに、組成物全体を相溶させることができる任意の有機溶媒である。ここで「相溶」させるとは、25℃において外観に濁りが認められず、均一かつ透明な液体を与えることをいう。 [(E) component]
The component (E) is an arbitrary organic solvent capable of uniformly dissolving the fluorine-containing organopolysiloxane mixture as the component (A) and incompatible with the entire composition. Here, "compatibility" means to give a uniform and transparent liquid without turbidity in appearance at 25 ° C.
及びこれらから選択される二種以上の混合溶剤が例示される。 In addition to the organic solvents described above, additional organic solvents may be added, provided that the appearance of the curable silicone composition can be kept transparent and uniform at 25 ° C. from the time the composition is prepared until it is used. You may use it. Such additional organic solvents are not particularly limited, and aromatic hydrocarbon solvents such as toluene and xylene, aliphatic hydrocarbon solvents such as hexane, heptane, octane, isooctane, decane, cyclohexane, methylcyclohexane and isoparaffin, Hydrocarbon solvents such as industrial gasoline (rubber volatile oil, etc.), petroleum benzine, solvent naphtha, etc .; acetone, methyl ethyl ketone, 2-pentanone, 3-pentanone, 2-hexanone, 2-heptanone, 4-heptanone, methylisobutylketone, Ketone solvents such as diisobutylketone, acetonylacetone, cyclohexanone; ester solvents such as ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate; 2-methoxyethyl acetate, 2-ethoxyethyl acetate, propylene glycol Solvents with esters and ether moieties such as monomethyl ether acetate, 2-butoxyethyl acetate; hexamethyldisiloxane, octamethyltrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, tris (trimethylsiloxy) methylsilane, Siloxane-based solvents such as tetrakis (trimethylsiloxy) silane; the above-mentioned m-xylene hexafluoride, methylheptafluoropropyl ether, methylnonafluorobutyl ether, ethylnonafluorobutyl ether, and 3-methoxy-1,1,1,2,2. , 3,4,4,5,5,6,6,6-Fluorine-modified solvent other than tridecafluorohexane, for example, a fluorine-modified aromatic hydrocarbon solvent such as benzotrifluorolide, perfluoro (2-butyltetrachloride). Fluoro-modified ether solvent such as, perfluorotributylamine, perfluorotripentylamine and other fluorine-modified alkylamine solvent,
And two or more mixed solvents selected from these are exemplified.
本硬化性シリコーン組成物には、その架橋反応を制御するため、(F)ヒドロシリル化反応制御剤を含有してもよい。(F)成分としては、1-エチニルシクロヘキサン-1-オール、2-メチル-3-ブチン-2-オール、3,5-ジメチル-1-ヘキシン-3-オール、2-フェニル-3-ブチン-2-オール等のアルキンアルコール;3-メチル-3-ペンテン-1-イン、3,5-ジメチル-3-ヘキセン-1-イン等のエンイン化合物;1,3,5,7-テトラメチル-1,3,5,7-テトラビニルシクロテトラシロキサン、1,3,5,7-テトラメチル-1,3,5,7-テトラヘキセニルシクロテトラシロキサン等のメチルアルケニルシロキサンオリゴマー;ジメチルビス(3-メチル-1-ブチン-3-オキシ)シラン、メチルビニルビス(3-メチル-1-ブチン-3-オキシ)シラン等のアルキンオキシシラン;メチルトリス(1-メチル-1-フェニル-プロピンオキシ)シラン、ジメチルビス(1-メチル-1-フェニル-プロピンオキシ)シラン、メチルトリス(1,1-ジメチル-プロピンオキシ)シラン、ジメチルビス(1,1-ジメチル-プロピンオキシ)シラン等のアルキンオキシシラン化合物;その他、ベンゾトリアゾール;マレイン酸ジアリル 、フマル酸ジアリル、(トリス((1、1―ジメチル-2-プロピニル)オキシ)メチルシランが例示される。 [(F) component]
The present curable silicone composition may contain (F) a hydrosilylation reaction control agent in order to control the cross-linking reaction. As the component (F), 1-ethynylcyclohexane-1-ol, 2-methyl-3-butin-2-ol, 3,5-dimethyl-1-hexin-3-ol, 2-phenyl-3-butin- Alkyne alcohols such as 2-ol; enein compounds such as 3-methyl-3-penten-1-in and 3,5-dimethyl-3-hexene-1-in; 1,3,5,7-tetramethyl-1 , 3,5,7-Tetravinylcyclotetrasiloxane, 1,3,5,7-Tetramethyl-1,3,5,7-Tetrahexenylcyclotetrasiloxane and other methylalkenylsiloxane oligomers; dimethylbis (3-methyl) Alkyneoxysilanes such as -1-butin-3-oxy) silanes and methylvinylbis (3-methyl-1-butin-3-oxy) silanes; methyltris (1-methyl-1-phenyl-propinoxy) silanes, Alkyneoxysilanes such as dimethylbis (1-methyl-1-phenyl-propinoxy) silanes, methyltris (1,1-dimethyl-propinoxy) silanes, and dimethylbis (1,1-dimethyl-propinoxy) silanes. Examples thereof include compounds; other benzotriazoles; diallyl maleate, diallyl fumarate, and (tris ((1,1-dimethyl-2-propynyl) oxy) oxy) methylsilanes.
本硬化性シリコーン組成物には、本発明の目的を達成できる範囲内で、光重合開始剤、酸化防止剤、反応性希釈剤、レベリング剤、充填剤、帯電防止剤、消泡剤、及び顔料等から選択される添加剤を用いてもよい。 [Other additives]
To the extent that the object of the present invention can be achieved, the present curable silicone composition contains a photopolymerization initiator, an antioxidant, a reactive diluent, a leveling agent, a filler, an antioxidant, an antifoaming agent, and a pigment. You may use an additive selected from the above.
本発明の硬化性シリコーン組成物は剥離コーティング剤として使用することが好ましく、シリコーン粘着剤用の剥離コーティング剤としての使用に適している。特に、低温下における貯蔵弾性率が低いシリコーン粘着剤用の剥離コーティング剤としての使用に最も適している。具体的には、-20℃における貯蔵弾性率が5MPa以下、好ましくは2.5MPa以下、より好ましくは1.0MPa以下のシリコーン粘着剤に対して、低剥離力かつ剥離後の均一な粘着層表面を維持できる点で、従来の剥離剤では十分な取り扱い作業性が担保できなかったシリコーン粘着剤フィルム/シートについて、その工業的利用可能性を大いに拡大するものである。 [Use]
The curable silicone composition of the present invention is preferably used as a release coating agent, and is suitable for use as a release coating agent for silicone pressure-sensitive adhesives. In particular, it is most suitable for use as a release coating agent for silicone pressure-sensitive adhesives having a low storage elastic modulus at low temperatures. Specifically, for a silicone pressure-sensitive adhesive having a storage elastic modulus at −20 ° C. of 5 MPa or less, preferably 2.5 MPa or less, more preferably 1.0 MPa or less, a uniform pressure-sensitive adhesive layer surface with low peeling force after peeling. This greatly expands the industrial applicability of silicone pressure-sensitive adhesive films / sheets, for which sufficient handling workability could not be guaranteed with conventional release agents.
本発明は、少なくとも、本発明の硬化性シリコーン組成物を硬化させてなる硬化物からなる剥離層とその剥離層と対向して配置された粘着剤層、特にシリコーン粘着剤層を含む構造含む積層体にも関する。この場合、硬化性シリコーン組成物は、剥離コーティング剤ということもできる。この場合「対向」の意味は、剥離層と粘着剤層が直接接していることを意味する。したがって、一般的には、本発明において、剥離層と粘着剤層が互いに対向して配置されている。以下の説明において粘着剤としてシリコーン粘着剤を例に挙げて本発明の積層体の構成を説明するが、粘着剤はシリコーン粘着剤に限定されない。 [Laminate]
The present invention is at least a laminate including a peeling layer made of a cured product obtained by curing the curable silicone composition of the present invention and a pressure-sensitive adhesive layer arranged opposite to the peeling layer, particularly a structure including a silicone pressure-sensitive adhesive layer. It also affects the body. In this case, the curable silicone composition can also be referred to as a release coating agent. In this case, the meaning of "opposing" means that the release layer and the pressure-sensitive adhesive layer are in direct contact with each other. Therefore, in general, in the present invention, the release layer and the pressure-sensitive adhesive layer are arranged so as to face each other. In the following description, the structure of the laminate of the present invention will be described by taking a silicone pressure-sensitive adhesive as an example of the pressure-sensitive adhesive, but the pressure-sensitive adhesive is not limited to the silicone pressure-sensitive adhesive.
(a)第1の基材/剥離層/シリコーン粘着剤層/第2の基材からなる構成、
(b)基材/剥離層/シリコーン粘着剤層からなる構成単位が2つ以上連続して積み重なってなる構成、
(c)第1の基材/第1の剥離層/シリコーン粘着剤層/第2の剥離層/第2の基材からなる構成、
(d)基材/第1の剥離層/シリコーン粘着剤層/第2の剥離層からなる構成単位が2つ以上連続して積み重なってなる構成。
構成(b)及び(d)においては、基材は非連続、又は連続したものが使用でき、一般的には、非連続の場合、積層体はシート状となり、連続したものを用いた場合、積層体はロール状となる。 Examples of the structure of the laminated body of the present invention include (a) to (d) shown below. These specific configurations are, for example, the same as those disclosed by the applicant in Patent Documents 6 and 7, and the release layer thereof is cured by curing the curable silicone composition of the present invention. A silicone pressure-sensitive adhesive layer having a storage elastic modulus of 5 MPa or less at −20 ° C. can be used instead of the layer, preferably as the silicone pressure-sensitive adhesive layer.
(A) A composition composed of a first base material / a release layer / a silicone pressure-sensitive adhesive layer / a second base material,
(B) A configuration in which two or more structural units composed of a base material / a release layer / a silicone adhesive layer are continuously stacked.
(C) A composition composed of a first base material / a first peeling layer / a silicone pressure-sensitive adhesive layer / a second peeling layer / a second base material.
(D) A configuration in which two or more structural units composed of a base material / a first release layer / a silicone pressure-sensitive adhesive layer / a second release layer are continuously stacked.
In the configurations (b) and (d), a discontinuous or continuous base material can be used. Generally, in the case of discontinuity, the laminated body is in the form of a sheet, and when the continuous one is used, the substrate is formed. The laminated body is in the form of a roll.
また、かかる基材は光透過性、光非透過性のもの、いずれも使用でき、複数の基材を用いる場合には目的に応じて両者を任意に組み合わせてもよい。 The base material is preferably in the form of a sheet or a film, particularly preferably in the form of a film, and a base material similar to the base material used for the release film can be used.
Further, either a light-transmitting material or a light-impermeable material can be used as the base material, and when a plurality of base materials are used, both may be arbitrarily combined depending on the purpose.
剥離力差としては、例えば、10gf/インチ以上であることが好ましく、20gf/インチ以上であることがさらに好ましい。 When the difference in peeling force between F1 and F2 is small, the operation of peeling one peeling layer from the silicone adhesive layer (peeling of the first facing surface) and then the operation of peeling the other peeling layer (second facing surface). ), When the first facing surface is peeled off unintentionally, the second facing surface is partially peeled off, the silicone adhesive layer is destroyed, and it becomes difficult to use the adhesive as originally intended. There is.
The peeling force difference is preferably, for example, 10 gf / inch or more, and more preferably 20 gf / inch or more.
本発明の上記積層体の製造方法は特に限定されないが、以下にいくつかの好ましい方法を挙げる。
はじめに、本発明の積層体を製造するにあたり、シリコーン粘着層と剥離層との対向面を調製する方法として以下の2つの方法が例示される。 [Manufacturing method of laminated body]
The method for producing the above-mentioned laminate of the present invention is not particularly limited, but some preferred methods are listed below.
First, in manufacturing the laminate of the present invention, the following two methods are exemplified as a method for preparing the facing surface between the silicone adhesive layer and the peeling layer.
対向面の第1の調製方法は、
フィルム状基材上に、本発明の硬化性シリコーン組成物からなる剥離コーティング剤を塗工し硬化させることにより、第1の剥離層を備えた第1の剥離フィルムを形成する工程(1);
上記フィルム状基材と同一のフィルム状基材又は上記フィルム基材とは異なる第2のフィルム状基材上に、硬化性シリコーン粘着剤組成物を塗工し硬化させてシリコーン粘着剤層を形成する工程(2);及び
上記工程(2)によって得られたシリコーン粘着剤層の上に、上記工程(1)によって得られた第1の剥離フィルムの剥離層を貼り合わせる工程(3)、
からなる。本調製方法は、既に硬化した剥離層と、既に硬化したシリコーン粘着剤層を接触させ、両層の対向面を形成する方法である。 <Method of preparing the facing surface between the silicone adhesive layer and the peeling layer (1)>
The first method for preparing the facing surface is
A step of forming a first release film having a first release layer by applying and curing a release coating agent made of the curable silicone composition of the present invention on a film-like substrate (1);
A curable silicone pressure-sensitive adhesive composition is applied and cured on the same film-like base material as the above-mentioned film-like base material or a second film-like base material different from the above-mentioned film-like base material to form a silicone pressure-sensitive adhesive layer. Step (2); and the step (3) of adhering the release layer of the first release film obtained by the above step (1) on the silicone pressure-sensitive adhesive layer obtained by the above step (2).
Consists of. This preparation method is a method in which an already cured release layer and an already cured silicone pressure-sensitive adhesive layer are brought into contact with each other to form facing surfaces of both layers.
対向面の第2の調製方法は、
フィルム状基材上に、本発明の硬化性シリコーン組成物からなる剥離コーティング剤を塗工し硬化させることにより、第1の剥離層を備えた第1の剥離フィルムを形成する工程(1);
上記工程(1)によって得られた第1の剥離フィルム上に、硬化性シリコーン粘着剤組成物を塗工し硬化させてシリコーン粘着剤層を形成する工程(2);及び
上記工程(2)によって得られたシリコーン粘着剤層の上に、上記フィルム状基材と同一のフィルム状基材又は上記フィルム基材とは異なるフィルム状基材を貼り合わせる工程(3)
からなる。本調製方法は、既に硬化した剥離層上に、硬化性シリコーン粘着剤を塗工し、硬化して、両層の対向面を形成する方法である。
一般には、第1の方法に比べて第2の方法は、シリコーン粘着剤と剥離剤との剥離力差が高い場合が多い。 <Method of preparing the facing surface between the silicone adhesive layer and the peeling layer (2)>
The second method of preparing the facing surface is
A step of forming a first release film having a first release layer by applying and curing a release coating agent made of the curable silicone composition of the present invention on a film-like substrate (1);
The step (2); and the above step (2) of applying and curing the curable silicone pressure-sensitive adhesive composition on the first release film obtained by the above step (1) to form a silicone pressure-sensitive adhesive layer. Step of bonding the same film-like substrate as the film-like substrate or the film-like substrate different from the film substrate on the obtained silicone pressure-sensitive adhesive layer (3)
Consists of. This preparation method is a method in which a curable silicone pressure-sensitive adhesive is applied onto an already cured release layer and cured to form facing surfaces of both layers.
In general, the second method often has a higher peeling force difference between the silicone pressure-sensitive adhesive and the peeling agent than the first method.
ビニル官能性ポリジメチルシロキサン(ガム状(可塑度152)、ビニル含有量0.013質量%)36.4重量部、(CH3)3SiO1/2単位とSiO4/2単位および水酸基からなるMQシリコーン樹脂(分子量が3300、水酸基量3.5モル%(0.8質量%)のキシレン溶液(固形分75.5%))84.3重量部、トルエン101.6重量部、分子鎖両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・メチルハイドロジェンシロキサン共重合体(分子量1600、SiH含有量0.73%)0.807重量部、1-エチニル-1-シクロヘキサノール(20%トルエン溶液)0.577重量部、を室温でよく混合し、混合物に白金系ヒドロシリル化反応触媒(0.62質量%の白金を含有)0.484重量部をよく混合して均一な溶液を調製した。ビニル官能性ポリジメチルシロキサンのアルケニル基の量に対する、分子鎖両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・メチルハイドロジェンシロキサン共重合体中のSiH基のモル比(SiH/Vi比)は33.7、白金金属の固形分に対する含量は30ppmであった。 <Reference Example 1> Preparation of "Hydrosilylated Curable Silicone Depressant Composition Solution 1" Vinyl-functional polydimethylsiloxane (gum-like (plasticity 152), vinyl content 0.013% by mass) 36.4 parts by mass, (CH 3 ) 3 An MQ silicone resin (molecular weight 3300, hydroxyl weight 3.5 mol% (0.8% by mass)) consisting of SiO 1/2 unit, SiO 4/2 unit and hydroxyl group (solid content 75. 5%)) 84.3 parts by mass, 101.6 parts by mass of toluene, dimethylsiloxane / methylhydrogensiloxane copolymer having both ends of the molecular chain sealed with a trimethylsiloxy group (molecular weight 1600, SiH content 0.73%) ) 0.807 parts by weight and 0.577 parts by weight of 1-ethynyl-1-cyclohexanol (20% toluene solution) were mixed well at room temperature, and a platinum-based hydrosilylation reaction catalyst (0.62% by mass of platinum) was added to the mixture. To prepare a uniform solution by mixing 0.484 parts by mass well. The molar ratio (SiH / Vi ratio) of SiH groups in the dimethylsiloxane / methylhydrogensiloxane copolymer with both ends of the molecular chain sealed with trimethylsiloxy groups to the amount of alkenyl groups in vinyl-functional polydimethylsiloxane is 33. 0.7, the content of platinum metal with respect to the solid content was 30 ppm.
ポリエチレンテレフタレート(以下、PETと略記する)フィルム(東レ株式会社製、製品名:ルミラー(登録商標)S10、厚さ50μm)上に、上記参考例の「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液1」を、硬化後の膜厚が50μmとなるように、アプリケーターを用いて塗布し、150℃で3分間加熱して硬化させてシリコーン粘着剤層を形成した。1日放置後、同試料を幅20mmに切断し、粘着層面をPMMA板(パルテック製、アクリライトL001,50x120x2mm)にローラーを用いて貼り合せて試験片とした。PMMA板を用いた試験片は、オリエンテック社製RTC-1210引っ張り試験機を用いてJIS Z0237に準じて180°引き剥がし試験方法を用いて引張速度300mm/minにて粘着力(20mm幅での測定を表示単位gf/インチに換算)を測定したところ、1490gf/inchであった。 <Reference Example 2> Adhesive strength measurement of "hydrosilylated curable silicone pressure-sensitive adhesive composition solution 1" Polyethylene terephthalate (hereinafter abbreviated as PET) film (manufactured by Toray Co., Ltd., product name: Lumirror (registered trademark) S10, thickness 50 μm), apply the “hydrosilylated curable silicone pressure-sensitive adhesive composition solution 1” of the above reference example using an applicator so that the film thickness after curing is 50 μm, and heat at 150 ° C. for 3 minutes. And cured to form a silicone pressure-sensitive adhesive layer. After leaving for 1 day, the sample was cut to a width of 20 mm, and the adhesive layer surface was bonded to a PMMA plate (manufactured by Paltek, acrylicite L001, 50x120x2 mm) using a roller to obtain a test piece. The test piece using the PMMA plate has an adhesive force (with a width of 20 mm) at a tensile speed of 300 mm / min using a 180 ° peeling test method according to JIS Z0237 using an RTC-1210 tensile tester manufactured by Orientec. When the measurement was converted into the display unit gf / inch), it was 1490 gf / inch.
フロロ変性オルガノポリシロキサン剥離剤を塗工した剥離ライナー上に、上記参考例の「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液1」を、硬化後の膜厚が100μmとなるように、アプリケーターを用いて塗布し、150℃で3分間加熱して硬化させてシリコーン粘着剤層を形成した。この粘着剤層を5枚以上重ね合わせ、厚さ500μm以上である、両面を剥離ライナーに挟まれたフィルムサンプルを得た。当該フィルムを直径8mmにくりぬき、動的粘弾性装置(Anoton Paar社製、MCR301)のパラレルプレートプローブに貼り付けて、-20℃における貯蔵弾性率を測定したところ、0.52MPaであった。なお、測定温度は-70℃~200℃の範囲であり、周波数1Hz、昇温速度3℃/分とした。 <Reference Example 3> Measurement of Storage Elasticity of "Hydrosilylated Curable Silicone Adhesive Composition Solution 1" On a peeling liner coated with a fluoromodified organopolysiloxane stripping agent, the "hydrosilylated curable silicone adhesive" of the above reference example is applied. The agent composition solution 1 ”was applied using an applicator so that the film thickness after curing was 100 μm, and was heated at 150 ° C. for 3 minutes to be cured to form a silicone pressure-sensitive adhesive layer. Five or more of these pressure-sensitive adhesive layers were superposed to obtain a film sample having a thickness of 500 μm or more and having both sides sandwiched between release liners. The film was hollowed out to a diameter of 8 mm, attached to a parallel plate probe of a dynamic viscoelastic device (MCR301, manufactured by Antonio Par), and the storage elastic modulus at −20 ° C. was measured and found to be 0.52 MPa. The measured temperature was in the range of −70 ° C. to 200 ° C., the frequency was 1 Hz, and the temperature rising rate was 3 ° C./min.
ポリエチレンテレフタレート(以下、PETと略記する)フィルム(東レ株式会社製、製品名:ルミラー(登録商標)S10、厚さ50μm)上に、硬化後の剥離剤層の厚さが0.2μmとなるように、硬化性シリコーン剥離剤組成物を、メイヤーバーを用いて塗布し、150℃で3分間加熱して、硬化シリコーン剥離層を有する「剥離フィルム」を作成した。「剥離フィルム」の剥離層上に、上記参考例の「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液1」を、硬化後の膜厚が50μmとなるように、アプリケーターを用いて塗布し、150℃で3分間加熱して硬化させてシリコーン粘着剤層を形成した。得られたシリコーン粘着剤層上に、2kgのハンドローラーを用いて、前記PETフィルムを貼り合わせた。得られたフィルムを1インチ幅に切断し、引張り試験機(オリエンテック社製RTC-1210)にて、「剥離フィルム1」を180°の方向に0.3m/分の速度で引張り、25℃においてシリコーン粘着剤層から「剥離フィルム」を剥離させるのに要する力(剥離力)を測定した。 <Measurement method of peeling force>
On a polyethylene terephthalate (hereinafter abbreviated as PET) film (manufactured by Toray Industries, Inc., product name: Lumirror (registered trademark) S10, thickness 50 μm), the thickness of the release agent layer after curing is 0.2 μm. The curable silicone release agent composition was applied to the film using a Mayer bar and heated at 150 ° C. for 3 minutes to prepare a "release film" having a cured silicone release layer. On the release layer of the "release film", the "hydrosilylated curable silicone pressure-sensitive adhesive composition solution 1" of the above reference example was applied using an applicator so that the film thickness after curing was 50 μm, and the temperature was 150 ° C. It was heated for 3 minutes and cured to form a silicone pressure-sensitive adhesive layer. The PET film was bonded onto the obtained silicone pressure-sensitive adhesive layer using a 2 kg hand roller. The obtained film is cut to a width of 1 inch, and the "release film 1" is pulled in a 180 ° direction at a rate of 0.3 m / min with a tensile tester (RTC-1210 manufactured by Orientec) to 25 ° C. The force (peeling force) required to peel the "release film" from the silicone pressure-sensitive adhesive layer was measured.
上記剥離力の測定後に、剥離ライナー剥離後のシリコーン粘着剤層の表面状態を目視で観察した。結果は以下のように定義した。
○: 粘着剤表面が均一で荒れや皺がない状態
×: 粘着剤表面に荒れ及び又は皺が発生した状態 <Surface condition of silicone adhesive layer after peeling liner>
After measuring the peeling force, the surface state of the silicone adhesive layer after peeling the peeling liner was visually observed. The result is defined as follows.
◯: The surface of the adhesive is uniform and has no roughness or wrinkles. ×: The surface of the adhesive is rough and wrinkled.
下記の成分を用いて、表1に示す組成で各成分を均一に混合することにより、実施例1~5並びに比較例1~3の硬化性シリコーン組成物を調製した。なお、式中、Me、Vi、Fp及びPfは、それぞれメチル基、ビニル基、F(CF(CF3)CF2O)2(CF(CF3))(CH2)O(CH2)3-基、及び3,3,4,4,5,5,6,6,6-ノナフルオロヘキシル基を表す。 [Examples 1 to 5] and [Comparative Examples 1 to 3]
Curable silicone compositions of Examples 1 to 5 and Comparative Examples 1 to 3 were prepared by uniformly mixing each component with the composition shown in Table 1 using the following components. In the formula, Me, Vi, Fp and Pf are a methyl group, a vinyl group and F (CF (CF 3 ) CF 2 O) 2 (CF (CF 3 )) (CH 2 ) O (CH 2 ) 3 , respectively. -Represents a group and a 3,3,4,4,5,5,6,6-nonafluorohexyl group.
(A1)平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)245(MeFpSiO2/2)120
で表され、ビニル基の含有量が0.06質量%であり、フッ素原子の含有量が44質量%であるオルガノポリシロキサン
(A2)平均組成式:
(Me2ViSiO1/2)2(Me2SiO2/2)900(MePfSiO2/2)450(MeViSiO2/2)10
で表され、ビニル基の含有量が0.16質量%であり、フッ素原子の含有量が38質量%であるオルガノポリシロキサン The following components were used as the component (A).
(A1) Average composition formula:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 245 (MeFpSiO 2/2 ) 120
Organopolysiloxane (A2) average composition formula: represented by, having a vinyl group content of 0.06% by mass and a fluorine atom content of 44% by mass:
(Me 2 ViSiO 1/2 ) 2 (Me 2 SiO 2/2 ) 900 (MePfSiO 2/2 ) 450 (MeViSiO 2/2 ) 10
Organopolysiloxane represented by, having a vinyl group content of 0.16% by mass and a fluorine atom content of 38% by mass.
平均組成式:
(Me3SiO1/2)2(MePfSiO2/2)12(MeHSiO2/2)27
で表され、フッ素原子の含有量が38質量%であり、ケイ素原子結合水素原子の含有量が0.50質量%であるオルガノポリシロキサン The following components were used as the component (B).
Average composition formula:
(Me 3 SiO 1/2 ) 2 (MePfSiO 2/2 ) 12 (MeHSiO 2/2 ) 27
Organopolysiloxane represented by, having a fluorine atom content of 38% by mass and a silicon atom-bonded hydrogen atom content of 0.50% by mass.
(Me3SiO1/2)2(Me2SiO2/2)900(MePfSiO2/2)300
で表され、フッ素原子の含有量が32質量%であるオルガノポリシロキサン The following components were used as the component (C).
(Me 3 SiO 1/2 ) 2 (Me 2 SiO 2/2 ) 900 (MePfSiO 2/2 ) 300
Organopolysiloxane represented by and having a fluorine atom content of 32% by mass.
なお、上述したように、本発明にかかる剥離層は、低温下における貯蔵弾性率が低いシリコーン粘着剤に適用することが好適であるが、低温下における貯蔵弾性率が高いシリコーン粘着剤にも適用可能であり、これを参考例4~7に示す。 [Reference Examples 4 to 7]
As described above, the release layer according to the present invention is preferably applied to a silicone pressure-sensitive adhesive having a low storage elastic modulus at a low temperature, but is also applicable to a silicone pressure-sensitive adhesive having a high storage elastic modulus at a low temperature. It is possible, and this is shown in Reference Examples 4 to 7.
ダウ・ケミカル社製のヒドロシリル化硬化性の粘着剤DOWSIL(TM) 7657ADHESIVE(固形分56質量%)100.0質量部、同社製の4000 CATALYST(白金金属含有ヒドロシリル化反応触媒)0.42質量部、及びトルエン 33.3質量部をよく混合して均一な溶液を調製した。 <Reference Example 4> Preparation of "Hydrosilylated Curable Silicone Adhesive Composition Solution 2" Hydrosilylated Curable Adhesive DOWNSIL (TM) 7657ADHESIVE (solid content 56% by mass) manufactured by Dow Chemical Co., Ltd. 100.0 parts by mass , 0.42 parts by mass of 4000 CATALYST (platinum metal-containing hydrosilylation reaction catalyst) manufactured by the same company, and 33.3 parts by mass of toluene were mixed well to prepare a uniform solution.
上記参考例2において、「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液1」を「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液2」に、加熱硬化条件を150℃で3分間を140℃で5分間に変更した以外は同様の方法にて粘着力を測定したところ、1450gf/inchであった。 <Reference Example 5> Measurement of Adhesive Strength of "Hydrosilylated Curable Silicone Adhesive Composition Solution 2" In Reference Example 2 above, "hydrosilylated curable silicone pressure-sensitive adhesive composition solution 1" is referred to as "hydrosilylated curable silicone pressure-sensitive adhesive". The adhesive strength of "Composition Solution 2" was measured by the same method except that the heating and curing conditions were changed from 150 ° C. for 3 minutes to 140 ° C. for 5 minutes, and it was 1450 gf / inch.
上記参考例3において、「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液1」を「ヒドロシリル化硬化性シリコーン粘着剤組成物溶液2に、加熱硬化条件を150℃で3分間を140℃で5分間に変更した以外は同様の方法にて-20℃における貯蔵弾性率を測定したところ、9.5MPaであった。 <Reference Example 6> Measurement of storage elastic modulus of "hydrosilylated curable silicone pressure-sensitive adhesive composition solution 2" In Reference Example 3 above, "hydrosilylated curable silicone pressure-sensitive adhesive composition solution 1" is referred to as "hydrosilylated curable silicone pressure-sensitive adhesive". The storage elastic modulus at −20 ° C. was measured by the same method except that the heating and curing conditions were changed from 150 ° C. for 3 minutes to 140 ° C. for 5 minutes in the agent composition solution 2, and it was 9.5 MPa. ..
本発明に係る実施例1~5の硬化性シリコーン組成物は、比較例1~3に対してはるかに低い剥離力を実現している。また、実施例1~5の硬化性組成物からなる剥離ライナー剥離後のシリコーン粘着剤層表面は均一な状態であり、荒れや皺は認めらなかった。これに対して、(A)成分を単一で用いた場合、または(C)成分を用いなかった場合、低温下における貯蔵弾性率が低いシリコーン粘着剤に対して十分な剥離力低下は実現できず、特に、剥離後のシリコーン粘着層が不均一な状態となって、工業的な利用範囲が制限されることが強く懸念される。(比較例1~3)
なお、参考例7で確認した通り、本発明の実施例にかかる硬化性シリコーン組成物は、低温下で貯蔵弾性率が5MPaを超えるシリコーン粘着剤についても十分に使用可能である。 [Summary]
The curable silicone compositions of Examples 1 to 5 according to the present invention realize much lower peeling force than Comparative Examples 1 to 3. Further, the surface of the silicone pressure-sensitive adhesive layer after the peeling liner made of the curable compositions of Examples 1 to 5 was peeled off was in a uniform state, and no roughness or wrinkles were observed. On the other hand, when the component (A) is used alone or the component (C) is not used, a sufficient reduction in peeling force can be realized for a silicone adhesive having a low storage elastic modulus at a low temperature. In particular, there is a strong concern that the silicone adhesive layer after peeling will be in a non-uniform state, limiting the range of industrial use. (Comparative Examples 1 to 3)
As confirmed in Reference Example 7, the curable silicone composition according to the embodiment of the present invention can be sufficiently used even for a silicone pressure-sensitive adhesive having a storage elastic modulus exceeding 5 MPa at a low temperature.
Claims (13)
- (A)以下の(A1)成分及び(A2)成分を1/99~99/1の質量比で混合したフッ素含有オルガノポリシロキサン混合物:
(A1)一分子中に少なくとも2個のアルケニル基を有し、かつ、フルオロ(ポリ)エーテル含有有機基を有する、フルオロ(ポリ)エーテル変性オルガノポリシロキサン、
(A2)一分子中に少なくとも2個のアルケニル基を有し、かつ、炭素数1~12のフルオロアルキル基を有する、フルオロアルキル基含有オルガノポリシロキサン、
(B)一分子中にケイ素原子結合水素原子を少なくとも3個有するオルガノハイドロジェンポリシロキサン、
(C)フッ素原子含有有機基を有し、且つヒドロシリル化反応性基を含有しないオルガノポリシロキサン、
(D)ヒドロシリル化反応用触媒、並びに
(E)有機溶媒
を含む、硬化性シリコーン組成物。 (A) Fluorine-containing organopolysiloxane mixture obtained by mixing the following components (A1) and (A2) in a mass ratio of 1/99 to 99/1:
(A1) A fluoro (poly) ether-modified organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoro (poly) ether-containing organic group.
(A2) A fluoroalkyl group-containing organopolysiloxane having at least two alkenyl groups in one molecule and having a fluoroalkyl group having 1 to 12 carbon atoms.
(B) Organohydrogenpolysiloxane having at least three silicon atom-bonded hydrogen atoms in one molecule,
(C) Organopolysiloxane having a fluorine atom-containing organic group and no hydrosilylation-reactive group.
A curable silicone composition comprising (D) a catalyst for a hydrosilylation reaction and (E) an organic solvent. - (A2)成分のフルオロアルキル基の少なくとも一部が、CsF2s+1-R-(式中、Rは、それぞれ独立に二価の炭化水素基であり、sは1~20の整数である)で表されるフルオロアルキル基である、請求項1に記載の硬化性シリコーン組成物。 At least a part of the fluoroalkyl group of the component (A2) is C s F 2s + 1 -R- (in the formula, R is an independently divalent hydrocarbon group, and s is an integer of 1 to 20). The curable silicone composition according to claim 1, which is a fluoroalkyl group represented by.
- (A)成分が、上記の(A1)成分及び(A2)成分を2/98~45/55の質量比で混合したフッ素含有オルガノポリシロキサン混合物である、請求項1または請求項2に記載の硬化性シリコーン組成物。 The first or second aspect of the present invention, wherein the component (A) is a fluorine-containing organopolysiloxane mixture in which the above-mentioned components (A1) and (A2) are mixed at a mass ratio of 2/98 to 45/55. Curable silicone composition.
- (C)成分が、分子鎖末端の1つ以上がトリメチルシリル基であり、
そのフッ素原子含有有機基が、炭素数1~12のフルオロアルキル基およびフルオロ(ポリ)エーテル含有有機基から選ばれる1種類または2種類以上の基であり、
分子内のフッ素原子含有有機基によるフッ素原子の含有量が20~40質量%の範囲内にあるオルガノポリシロキサンである、請求項1~請求項3のいずれか1項に記載の硬化性シリコーン組成物。 The component (C) has one or more trimethylsilyl groups at the end of the molecular chain.
The fluorine atom-containing organic group is one or more groups selected from fluoroalkyl groups having 1 to 12 carbon atoms and fluoro (poly) ether-containing organic groups.
The curable silicone composition according to any one of claims 1 to 3, wherein the organopolysiloxane has a fluorine atom content in the range of 20 to 40% by mass due to the fluorine atom-containing organic group in the molecule. thing. - (B)成分が、さらに、炭素数1~12のフルオロアルキル基又はフルオロ(ポリ)エーテル含有有機基を有するオルガノハイドロジェンポリシロキサンである、請求項1~請求項4のいずれか1項に記載の硬化性シリコーン組成物。 The invention according to any one of claims 1 to 4, wherein the component (B) is an organohydrogenpolysiloxane further having a fluoroalkyl group having 1 to 12 carbon atoms or a fluoro (poly) ether-containing organic group. Curable silicone composition.
- (A)成分100質量部に対して、(B)成分 0.1~40質量部、(C)成分 0.01~20質量部、(D)成分 白金金属量が0.1~500ppmとなる量、(E)成分 20~10,000質量部を含有する、請求項1~請求項5のいずれか1項に記載の硬化性シリコーン組成物。
The amount of (B) component is 0.1 to 40 parts by mass, (C) component is 0.01 to 20 parts by mass, and the amount of (D) component platinum metal is 0.1 to 500 ppm with respect to 100 parts by mass of (A) component. The curable silicone composition according to any one of claims 1 to 5, which contains 20 to 10,000 parts by mass of the component (E).
- 請求項1~請求項6のいずれか1項に記載の硬化性シリコーン組成物からなる、シリコーン粘着剤用剥離コーティング剤。 A release coating agent for a silicone pressure-sensitive adhesive, which comprises the curable silicone composition according to any one of claims 1 to 6.
- シリコーン粘着剤が、-20℃における貯蔵弾性率が5MPa以下のシリコーン粘着剤であることを特徴とする、請求項7に記載のシリコーン粘着剤用剥離コーティング剤。 The release coating agent for a silicone pressure-sensitive adhesive according to claim 7, wherein the silicone pressure-sensitive adhesive is a silicone pressure-sensitive adhesive having a storage elastic modulus at −20 ° C. of 5 MPa or less.
- フィルム状基材、および
請求項1~請求項6のいずれか1項に記載の硬化性シリコーン組成物を硬化させて得られる硬化物からなる剥離層
を含む剥離フィルム。 A release film comprising a film-like substrate and a release layer composed of a cured product obtained by curing the curable silicone composition according to any one of claims 1 to 6. - フィルム状基材、および
請求項7または請求項8に記載のシリコーン粘着剤用剥離コーティング剤を硬化させて得られる硬化物からなる剥離層
を含む、シリコーン粘着剤用剥離フィルム。 A release film for a silicone pressure-sensitive adhesive, which comprises a film-like substrate and a release layer made of a cured product obtained by curing the release coating agent for a silicone pressure-sensitive adhesive according to claim 7 or 8. - シリコーン粘着剤層が少なくとも1つの剥離層と対向して配置された構造を備えた積層体であって、当該剥離層が、請求項7に記載のシリコーン粘着剤用剥離コーティング剤を硬化させてなる硬化物からなる剥離層である、積層体。 It is a laminate having a structure in which the silicone pressure-sensitive adhesive layer is arranged so as to face at least one peeling layer, and the peeling layer is formed by curing the peeling coating agent for silicone pressure-sensitive adhesive according to claim 7. A laminated body that is a release layer made of a cured product.
- シリコーン粘着剤層が、-20℃における貯蔵弾性率が5MPa以下のシリコーン粘着剤層であることを特徴とする、請求項11に記載の積層体。 The laminate according to claim 11, wherein the silicone pressure-sensitive adhesive layer is a silicone pressure-sensitive adhesive layer having a storage elastic modulus of 5 MPa or less at −20 ° C.
- 積層体全体が、i)積層シート状およびii)ロール状から選ばれる少なくとも1の形状である、請求項11または請求項12に記載の積層体。 The laminate according to claim 11 or 12, wherein the entire laminate has at least one shape selected from i) a laminated sheet and ii) a roll.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022572209A JPWO2022138348A1 (en) | 2020-12-25 | 2021-12-14 | |
CN202180080498.5A CN116583403A (en) | 2020-12-25 | 2021-12-14 | Curable silicone composition, release coating agent for silicone adhesive comprising the composition, release film, and laminate |
KR1020237024862A KR20230125249A (en) | 2020-12-25 | 2021-12-14 | Curable silicone composition, release coating agent for silicone pressure-sensitive adhesive made of the composition, release film, and laminate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020-216898 | 2020-12-25 | ||
JP2020216898 | 2020-12-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022138348A1 true WO2022138348A1 (en) | 2022-06-30 |
Family
ID=82159700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/046150 WO2022138348A1 (en) | 2020-12-25 | 2021-12-14 | Curable silicone composition, release coating agent for silicone adhesive agent formed from curable silicone composition, release film, and laminate |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPWO2022138348A1 (en) |
KR (1) | KR20230125249A (en) |
CN (1) | CN116583403A (en) |
TW (1) | TW202235539A (en) |
WO (1) | WO2022138348A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06279681A (en) * | 1993-01-27 | 1994-10-04 | Toray Dow Corning Silicone Co Ltd | Fluorosilicone releasing agent composition |
WO2016006252A1 (en) * | 2014-07-10 | 2016-01-14 | 東レ・ダウコーニング株式会社 | Delamination control agent, silicone delamination agent composition containing same, delamination sheet, and laminate body |
WO2020032285A1 (en) * | 2018-08-10 | 2020-02-13 | ダウ・東レ株式会社 | Organopolysiloxane composition for forming pressure sensitive adhesive layer, and use of same |
WO2020138417A1 (en) * | 2018-12-27 | 2020-07-02 | ダウ・東レ株式会社 | Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release film |
WO2020138399A1 (en) * | 2018-12-27 | 2020-07-02 | ダウ・東レ株式会社 | Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release film |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6474268A (en) | 1987-09-14 | 1989-03-20 | Shinetsu Chemical Co | Curable silicone composition |
US4968766A (en) | 1989-01-12 | 1990-11-06 | Dow Corning Corporation | Fluorosilicone compounds and compositions for adhesive release liners |
JP4524549B2 (en) | 2003-08-14 | 2010-08-18 | 信越化学工業株式会社 | Release agent composition for silicone adhesive and release sheet using the same |
JP6481646B2 (en) | 2016-03-17 | 2019-03-13 | 信越化学工業株式会社 | Double-sided differential release paper or double-sided differential release film |
-
2021
- 2021-12-14 CN CN202180080498.5A patent/CN116583403A/en active Pending
- 2021-12-14 KR KR1020237024862A patent/KR20230125249A/en unknown
- 2021-12-14 WO PCT/JP2021/046150 patent/WO2022138348A1/en active Application Filing
- 2021-12-14 JP JP2022572209A patent/JPWO2022138348A1/ja active Pending
- 2021-12-20 TW TW110147715A patent/TW202235539A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06279681A (en) * | 1993-01-27 | 1994-10-04 | Toray Dow Corning Silicone Co Ltd | Fluorosilicone releasing agent composition |
WO2016006252A1 (en) * | 2014-07-10 | 2016-01-14 | 東レ・ダウコーニング株式会社 | Delamination control agent, silicone delamination agent composition containing same, delamination sheet, and laminate body |
WO2020032285A1 (en) * | 2018-08-10 | 2020-02-13 | ダウ・東レ株式会社 | Organopolysiloxane composition for forming pressure sensitive adhesive layer, and use of same |
WO2020138417A1 (en) * | 2018-12-27 | 2020-07-02 | ダウ・東レ株式会社 | Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release film |
WO2020138399A1 (en) * | 2018-12-27 | 2020-07-02 | ダウ・東レ株式会社 | Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release film |
Also Published As
Publication number | Publication date |
---|---|
KR20230125249A (en) | 2023-08-29 |
TW202235539A (en) | 2022-09-16 |
JPWO2022138348A1 (en) | 2022-06-30 |
CN116583403A (en) | 2023-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7046196B2 (en) | Pressure-sensitive adhesive layer-forming organopolysiloxane composition and its use | |
JP7046198B2 (en) | Pressure-sensitive adhesive layer-forming organopolysiloxane composition and its use | |
JP7046197B2 (en) | Pressure-sensitive adhesive layer-forming organopolysiloxane composition and its use | |
CN113453888B (en) | Curable silicone composition, release coating agent formed from said composition, release film using said release coating agent, and laminate comprising said release film | |
CN113423571B (en) | Curable silicone composition, release coating agent, release film, and laminate | |
CN114269876B (en) | Pressure-sensitive adhesive layer-forming polyorganosiloxane composition and use thereof | |
WO2021029413A1 (en) | Pressure-sensitive adhesive layer-forming organopolysiloxane composition, and use thereof | |
JP7357643B2 (en) | A curable silicone composition, a release coating agent comprising the composition, a release film using the release coating agent, and a laminate containing the release film. | |
CN114269875B (en) | Pressure-sensitive adhesive layer-forming polyorganosiloxane composition and use thereof | |
WO2022138348A1 (en) | Curable silicone composition, release coating agent for silicone adhesive agent formed from curable silicone composition, release film, and laminate | |
WO2022138349A1 (en) | Curable silicone composition, release coating agent for silicone adhesive and containing said composition, release film, and laminate | |
WO2022138913A1 (en) | Pressure sensitive adhesive layer-forming organopolysiloxane composition, use of same, and composition design method for same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21910497 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022572209 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180080498.5 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20237024862 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21910497 Country of ref document: EP Kind code of ref document: A1 |