JP6103687B2 - 偏光板用接着剤組成物 - Google Patents
偏光板用接着剤組成物 Download PDFInfo
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- JP6103687B2 JP6103687B2 JP2012256779A JP2012256779A JP6103687B2 JP 6103687 B2 JP6103687 B2 JP 6103687B2 JP 2012256779 A JP2012256779 A JP 2012256779A JP 2012256779 A JP2012256779 A JP 2012256779A JP 6103687 B2 JP6103687 B2 JP 6103687B2
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- 239000000853 adhesive Substances 0.000 title claims description 72
- 230000001070 adhesive effect Effects 0.000 title claims description 72
- 239000000203 mixture Substances 0.000 title claims description 53
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 68
- 239000003822 epoxy resin Substances 0.000 claims description 39
- 229920000647 polyepoxide Polymers 0.000 claims description 39
- 230000001681 protective effect Effects 0.000 claims description 37
- 150000001875 compounds Chemical class 0.000 claims description 29
- 150000003254 radicals Chemical class 0.000 claims description 16
- 239000003504 photosensitizing agent Substances 0.000 claims description 14
- 239000003999 initiator Substances 0.000 claims description 12
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical class C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims description 11
- 125000002091 cationic group Chemical group 0.000 claims description 9
- 125000003700 epoxy group Chemical group 0.000 claims description 8
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 claims description 4
- -1 N-substituted amide Chemical class 0.000 description 74
- 229920005989 resin Polymers 0.000 description 24
- 239000011347 resin Substances 0.000 description 24
- 125000004432 carbon atom Chemical group C* 0.000 description 17
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 15
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- 238000000034 method Methods 0.000 description 14
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- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 12
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 12
- 125000002947 alkylene group Chemical group 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
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- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 7
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- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 7
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- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
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- 229910052753 mercury Inorganic materials 0.000 description 5
- LWNGJAHMBMVCJR-UHFFFAOYSA-N (2,3,4,5,6-pentafluorophenoxy)boronic acid Chemical compound OB(O)OC1=C(F)C(F)=C(F)C(F)=C1F LWNGJAHMBMVCJR-UHFFFAOYSA-N 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 4
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 4
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 239000011630 iodine Substances 0.000 description 4
- 150000002596 lactones Chemical class 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- JNELGWHKGNBSMD-UHFFFAOYSA-N xanthone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3OC2=C1 JNELGWHKGNBSMD-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N 1,4-butanediol Substances OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 3
- 125000004200 2-methoxyethyl group Chemical group [H]C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 150000004056 anthraquinones Chemical class 0.000 description 3
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- 239000012461 cellulose resin Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
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- 125000006165 cyclic alkyl group Chemical group 0.000 description 3
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- 239000000975 dye Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 125000001033 ether group Chemical group 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
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- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
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- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 3
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 2
- XUVKSPPGPPFPQN-UHFFFAOYSA-N 10-Methyl-9(10H)-acridone Chemical compound C1=CC=C2N(C)C3=CC=CC=C3C(=O)C2=C1 XUVKSPPGPPFPQN-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- HLIQLHSBZXDKLV-UHFFFAOYSA-N 2-(2-hydroxyethoxy)-1-phenoxyethanol Chemical compound OCCOCC(O)OC1=CC=CC=C1 HLIQLHSBZXDKLV-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- NJWGQARXZDRHCD-UHFFFAOYSA-N 2-methylanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(C)=CC=C3C(=O)C2=C1 NJWGQARXZDRHCD-UHFFFAOYSA-N 0.000 description 2
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
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- 229920002799 BoPET Polymers 0.000 description 2
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- ISAOCJYIOMOJEB-UHFFFAOYSA-N desyl alcohol Natural products C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 2
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- 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 2
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- 150000002366 halogen compounds Chemical class 0.000 description 2
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- NXPPAOGUKPJVDI-UHFFFAOYSA-N naphthalene-1,2-diol Chemical compound C1=CC=CC2=C(O)C(O)=CC=C21 NXPPAOGUKPJVDI-UHFFFAOYSA-N 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
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- DQNSRQYYCSXZDF-UHFFFAOYSA-N 1,4-bis(ethenoxymethyl)cyclohexane Chemical compound C=COCC1CCC(COC=C)CC1 DQNSRQYYCSXZDF-UHFFFAOYSA-N 0.000 description 1
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- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 1
- IVIDDMGBRCPGLJ-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol Chemical compound C1OC1COC(CO)COCC1CO1 IVIDDMGBRCPGLJ-UHFFFAOYSA-N 0.000 description 1
- RNIPJYFZGXJSDD-UHFFFAOYSA-N 2,4,5-triphenyl-1h-imidazole Chemical class C1=CC=CC=C1C1=NC(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)N1 RNIPJYFZGXJSDD-UHFFFAOYSA-N 0.000 description 1
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- 125000005440 p-toluyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C(*)=O)C([H])([H])[H] 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229960000380 propiolactone Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- BUUPQKDIAURBJP-UHFFFAOYSA-N sulfinic acid Chemical compound OS=O BUUPQKDIAURBJP-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- XBFJAVXCNXDMBH-UHFFFAOYSA-N tetracyclo[6.2.1.1(3,6).0(2,7)]dodec-4-ene Chemical compound C1C(C23)C=CC1C3C1CC2CC1 XBFJAVXCNXDMBH-UHFFFAOYSA-N 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- LALRXNPLTWZJIJ-UHFFFAOYSA-N triethylborane Chemical compound CCB(CC)CC LALRXNPLTWZJIJ-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- MKOBNHWWZPEDQJ-UHFFFAOYSA-N trifluoro(methanidylsulfonyl)methane Chemical compound [CH2-]S(=O)(=O)C(F)(F)F MKOBNHWWZPEDQJ-UHFFFAOYSA-N 0.000 description 1
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 1
- 239000012953 triphenylsulfonium Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- 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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polarising Elements (AREA)
- Adhesive Tapes (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
Description
本発明の第一の態様は、本発明は、(a)ラジカル重合性基を有さないエポキシ樹脂 20〜70重量%、(b)ラクトン変性ヒドロキシエチル(メタ)アクリレート 5〜80重量%、および(c)カチオン重合性基を有さないラジカル重合性化合物 0〜75重量%(ただし(a)〜(c)の合計は100重量%である)のみからなる重合性成分 100重量部と、光酸発生剤 1〜7重量部と、光重合開始剤および光増感剤の少なくとも一方 0.1〜7重量部と、を含む、偏光板用接着剤組成物である。
本発明の偏光板用接着剤組成物は、(a)ラジカル重合性基を有さないエポキシ樹脂(以下、単に(a)成分とも称する)20〜70重量%、(b)ラクトン変性ヒドロキシエチル(メタ)アクリレート(以下、単に(b)成分とも称する)5〜80重量%、および(c)カチオン重合性基を有さないラジカル重合性化合物(以下、単に(c)成分とも称する)0〜75重量%(ただし、(a)〜(c)の合計は100重量%である)のみからなる重合性成分を含む。
本発明で用いられる(a)成分は、分子内にエチレン性不飽和結合などのラジカル重合性基を有さないエポキシ樹脂である。(a)成分は、単独でもまたは2種以上組み合わせても用いることができる。
本発明で用いられる(b)成分は、ヒドロキシエチル(メタ)アクリレートに対して、ラクトンが開環付加した化合物である。
本発明で用いられる(c)成分は、分子内にエポキシ基などのカチオン重合性基を有さないラジカル重合性化合物である。(c)成分は、単独でもまたは2種以上組み合わせても用いることができる。
(メタ)アクリル酸およびその塩;
メチル(メタ)アクリレート、エチル(メタ)アクリレート、メチルフェノキシエチル(メタ)アクリレート、n−プロピル(メタ)アクリレート、n−ブチル(メタ)アクリレート、イソブチル(メタ)アクリレート、tert−ブチル(メタ)アクリレート、ペンチル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、ジシクロペンタニルアクリレート、2−エチルヘキシル(メタ)アクリレート、ラウリル(メタ)アクリレート、(メタ)アクリレート、2−メトキシエチル(メタ)アクリレート、(メタ)アクリレート、2−ヒドロキシエチル(メタ)アクリレート、2−ヒドロキシプロピル(メタ)アクリレート、2−ヒドロキシブチル(メタ)アクリレート、4−ヒドロキシブチル(メタ)アクリレート、グリセロールモノ(メタ)アクリレート、3−クロロ−2−ヒドロキシプロピル(メタ)アクリレート、2−ヒドロキシ−3−フェノキシプロピル(メタ)アクリレート、エチレングリコールジ(メタ)アクリレート、フェノキシエチレングリコールジ(メタ)アクリレート、ジエチレングリコールジ(メタ)アクリレート、フェノキシジエチレングリコール(メタ)アクリレート、トリエチレングリコールジ(メタ)アクリレート、フェノキシトリエチレングリコールジ(メタ)アクリレート、ブチレングリコールジ(メタ)アクリレート、ノナエチレングリコールジ(メタ)アクリレート、ポリプロピレングリコールジ(メタ)アクリレート、ジプロピレングリコールジ(メタ)アクリレート、ネオペンチルグリコールジ(メタ)アクリレート、1,3−ブタンジオールジ(メタ)アクリレート、1,4−ブタンジオールジ(メタ)アクリレート、1.6−ヘキサンジオールジ(メタ)アクリレート、トリメチロールプロパントリ(メタ)アクリレート、ネオペンチルグリコールジ(メタ)アクリレート、ペンタエリスリトールトリ(メタ)アクリレート、トリメチロールメタントリ(メタ)アクリレート、イソボルニル(メタ)アクリレート、N−ビニルピロリドン、アクリロイルモルフォリン、ウレタン(メタ)アクリレート、テトラヒドロフルフリル(メタ)アクリレート、テトラヒドロフルフリルアルコールのモノε−カプロラクトン付加物の(メタ)アクリレート、テトラヒドロフルフリルアルコールのジε−カプロラクトン付加物の(メタ)アクリレート、テトラヒドロフルフリルアルコールのモノβ−メチル−δ−バレロラクトン付加物の(メタ)アクリレート、テトラヒドロフルフリルアルコールのジβ−メチル−δ−バレロラクトン付加物の(メタ)アクリレート、ω−カルボキシ−ポリカプロラクトンモノアクリレート等の(メタ)アクリル酸エステル化合物;
アクリロニトリル、メタクリロニトリル等のニトリル基含有ビニル化合物;および
(メタ)アクリルアミド、N−メチル(メタ)アクリルアミド、N−エチル(メタ)アクリルアミド、N−プロピル(メタ)アクリルアミド、N−イソプロピル(メタ)アクリルアミド、N−ブチル(メタ)アクリルアミド、N,N−ジメチル(メタ)アクリルアミド、N,N−ジエチル(メタ)アクリルアミド、N,N−ジメチルアミノプロピル(メタ)アクリルアミド、N−(ヒドロキシエチル)アクリルアミド、N−イソプロピル(メタ)アクリルアミド、N−メチロール(メタ)アクリルアミド、ダイアセトン(メタ)アクリルアミド、N,N−メチレンビス(メタ)アクリルアミド等のアミド基含有ビニル化合物などが挙げられる。
光酸発生剤としては、従来公知の光酸発生剤を特に制限なく使用できる。具体的には、例えば、芳香族ジアゾニウム塩、芳香族ヨードニウム塩や芳香族スルホニウム塩などのオニウム塩、鉄−アレン錯体などが挙げられる。これらは、単独でもまたは2種以上を組み合わせて使用してもよい。
本発明の接着剤組成物は、さらに、光重合開始剤および光増感剤の少なくとも一方を含む。光重合開始剤としては特に制限はなく、従来公知の光重合開始剤を好ましく使用できる。光重合開始剤は、単独でもまたは2種以上を組み合わせて使用してもよい。
本発明の接着剤組成物を製造するには、特に制限はなく、通常は、上記の(a)〜(c)成分、光酸発生剤、光重合開始剤、および必要に応じて他の成分を混合して接着剤組成物が得られる。粘度調整のために適宜有機溶媒を使用してもよい。混合方法にも特に制限はなく、室温(25℃)で、液体内が均一になるまで十分に攪拌混合すればよい。
本発明の第二の態様によれば、本発明の偏光板用接着剤組成物を用いて接着した、保護フィルムと、偏光子とを備える偏光板が提供される。本発明の偏光板は、製造時の工程性に優れ、十分な接着性を示す。以下、本発明の偏光板の構成について説明する。
偏光子としては、特に制限はなく、従来公知のものを使用できる。例えば、ポリビニルアルコール系フィルム、部分ホルマール化ポリビニルアルコール系フィルム、エチレン・酢酸ビニル共重合体系部分ケン化フィルム等の親水性高分子フィルムに、ヨウ素や二色性染料等の二色性材料を吸着させて一軸延伸したもの、ポリビニルアルコールの脱水処理物やポリ塩化ビニルの脱塩酸処理物等ポリエン系配向フィルム等が挙げられる。
保護フィルムとしては、透明性、機械的強度、熱安定性、水分遮断性、等方性などに優れる材料が好ましい。例えば、セルロースジアセテート、セルローストリアセテート等のセルロース系樹脂、ポリエチレンテレフタレート、ポリエチレンナフタレート等のポリエステル系樹脂、ポリメチルメタクリレート等のアクリル系樹脂、ポリスチレンやアクリロニトリル・スチレン共重合体(AS樹脂)等のスチレン系樹脂、ポリカーボネート系樹脂、ポリエチレン、ポリプロピレン、シクロ系ないしはノルボルネン構造を有するポリオレフィン、エチレン・プロピレン共重合体等のポリオレフィン系樹脂、塩化ビニル系樹脂、ナイロンや芳香族ポリアミド等のアミド系樹脂、イミド系樹脂、スルホン系樹脂、ポリエーテルスルホン系樹脂、ポリエーテルエーテルケトン系樹脂、ポリフェニレンスルフィド系樹脂、ビニルアルコール系樹脂、塩化ビニリデン系樹脂、ビニルブチラール系樹脂、アリレート系樹脂、ポリオキシメチレン系樹脂、エポキシ系樹脂、または前記樹脂のブレンドなどが挙げられる。
偏光板の製造方法としては特に制限はなく、従来公知の方法によって、保護フィルムと偏光子とを、本発明の接着剤組成物を用いて貼り合わせることによって製造し得る。塗布した接着剤組成物は、紫外線照射により接着性を発現して接着層を構成する。
<接着剤組成物の調製>
ラジカル重合性基を有さないエポキシ樹脂((a)成分))として、レゾルシン型エポキシ樹脂(ナガセケムテックス株式会社製、デナコール(登録商標)EX−201)60重量部、ラクトン変性2−ヒドロキシエチル(メタ)アクリレート((b)成分)として、プラクセル(登録商標)FA2D(株式会社ダイセル製)40重量部、光酸発生剤(サンアプロ株式会社製CPI210S)3重量部、および光重合開始剤(BASFジャパン株式会社製イルガキュア(登録商標)907)1重量部を、23℃、相対湿度50%RHの恒温室内で、目視で均一になるまで攪拌混合し、接着剤組成物を得た。
偏光子は、以下の方法で作製した。平均重合度2400、ケン化度99.9%の厚み75μmのポリビニルアルコールフィルムを、28℃の温水中に90秒間浸漬し膨潤させ、次いで、ヨウ素/ヨウ化カリウム(重量比2/3)の濃度0.6重量%の水溶液に浸漬し、2.1倍に延伸させながらポリビニルアルコールフィルムを染色した。その後、60℃のホウ酸エステル水溶液中で合計の延伸倍率が5.8倍となるように延伸を行い、水洗、45℃で3分乾燥を行い、偏光子(厚み25μm)を作製した。
下記表1に示す材料および配合量を用いた以外は、実施例1と同様にして、それぞれ接着剤組成物を作製した。さらに、得られた各接着剤組成物を用いて、実施例1と同様にして、それぞれ偏光子と保護フィルムとを貼り合せ、紫外線照射を行って、偏光板を完成させた。
下記表1に示す材料および配合量を用いた以外は、実施例1と同様にして、それぞれ接着剤組成物を作製した。さらに、得られた各接着剤組成物を用いて、実施例1と同様にして、それぞれ偏光子と保護フィルムとを貼り合せ、紫外線照射を行って、偏光板を完成させた。
実施例1〜7および比較例1〜5で作製した紫外線照射直後の偏光板を、図2に示すように、折り曲げた偏光板8の間隔が10mmとなるように(R10mm)折り曲げ、保護フィルムの剥離があるかないかを目視で判定した。剥離が観察されなかった場合は○、観察された場合は×とした。評価結果を下記表1に示す。
実施例1〜7および比較例1〜5で作製した偏光板を、トムソン刃で50mm×50mmの大きさに裁断し、裁断の際の端部の剥がれの状態を目視で観察した。評価基準としては、0.5mm以下を合格とした。評価結果を表1に示す。
実施例1〜7および比較例1〜5で作製した偏光板を、トムソン刃で50mm×50mmの大きさに裁断し、60℃の水槽に浸漬し、2時間保持した。その後、水槽から各サンプルを取り出し、偏光子の収縮の大きさを測定した。図3(A)に示すように、試験前の偏光板8の端部から、図3(B)に示すように、延伸方向に収縮した偏光板8の端部までを測定し、収縮の大きさ9とした。接着剤の接着性が高ければより収縮は小さく、接着性が十分でなければ偏光板の収縮はより大きい値となる。評価基準としては、収縮の大きさが2.0mm以下を合格とした。評価結果を表1に示す。
2 接着剤組成物溶液、
3、4 保護フィルム、
5 紫外線照射前偏光板、
6、7 ロール、
8 偏光板、
9 収縮の大きさ。
Claims (4)
- (a)ラジカル重合性基を有さないエポキシ樹脂 20〜70重量%、(b)ラクトン変性2−ヒドロキシエチル(メタ)アクリレート 5〜80重量%、および(c)カチオン重合性基を有さないラジカル重合性化合物 0〜75重量%(ただし、(a)+(b)+(c)=100重量%)のみからなる重合性成分 100重量部と、
光酸発生剤 1〜7重量部と、
光ラジカル重合開始剤および光増感剤の少なくとも一方 0.1〜7重量部と、
を含む、偏光板用接着剤組成物。 - 前記ラクトン変性ヒドロキシエチル(メタ)アクリレートは、ε−カプロラクトン変性2−ヒドロキシエチル(メタ)アクリレートである、請求項1に記載の偏光板用接着剤組成物。
- 前記ラジカル重合性基を有さないエポキシ樹脂は、1分子中に2個以上のエポキシ基を有する、請求項1または2に記載の偏光板用接着剤組成物。
- 請求項1〜3のいずれか1項に記載の偏光板用接着剤組成物を用いて接着した、保護フィルムと、偏光子とを備える偏光板。
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