JP5641382B1 - UV curable adhesive composition and adhesive - Google Patents
UV curable adhesive composition and adhesive Download PDFInfo
- Publication number
- JP5641382B1 JP5641382B1 JP2014537201A JP2014537201A JP5641382B1 JP 5641382 B1 JP5641382 B1 JP 5641382B1 JP 2014537201 A JP2014537201 A JP 2014537201A JP 2014537201 A JP2014537201 A JP 2014537201A JP 5641382 B1 JP5641382 B1 JP 5641382B1
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- Prior art keywords
- meth
- acrylate
- sensitive adhesive
- mass
- pressure
- Prior art date
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- 230000001070 adhesive effect Effects 0.000 title claims abstract description 29
- 239000000853 adhesive Substances 0.000 title claims abstract description 28
- 239000000203 mixture Substances 0.000 title claims abstract description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 84
- -1 acrylic compound Chemical class 0.000 claims abstract description 83
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 47
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229920005862 polyol Polymers 0.000 claims abstract description 32
- 150000003077 polyols Chemical class 0.000 claims abstract description 29
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 27
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 27
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 23
- 239000000178 monomer Substances 0.000 claims abstract description 23
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 12
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- 238000004383 yellowing Methods 0.000 abstract description 24
- 230000002087 whitening effect Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 36
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 20
- 239000004793 Polystyrene Substances 0.000 description 16
- 229920002223 polystyrene Polymers 0.000 description 16
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 13
- 239000005058 Isophorone diisocyanate Substances 0.000 description 10
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 10
- 239000006087 Silane Coupling Agent Substances 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 9
- 239000004417 polycarbonate Substances 0.000 description 9
- 229920000515 polycarbonate Polymers 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- NWVVVBRKAWDGAB-UHFFFAOYSA-N hydroquinone methyl ether Natural products COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000010992 reflux Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 7
- NXMOWTFIUDDXIT-UHFFFAOYSA-L [7,7-dimethyloctanoyloxy(dioctyl)stannyl] 7,7-dimethyloctanoate Chemical compound CC(C)(C)CCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCC(C)(C)C NXMOWTFIUDDXIT-UHFFFAOYSA-L 0.000 description 7
- 239000003963 antioxidant agent Substances 0.000 description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000004721 Polyphenylene oxide Substances 0.000 description 6
- 229920000570 polyether Polymers 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 125000002723 alicyclic group Chemical group 0.000 description 5
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical class C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 4
- SKHBJDDIGYYYMJ-UHFFFAOYSA-N 2,6-ditert-butyl-6-methylcyclohexa-1,3-dien-1-ol Chemical compound CC(C)(C)C1=C(O)C(C)(C(C)(C)C)CC=C1 SKHBJDDIGYYYMJ-UHFFFAOYSA-N 0.000 description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 125000003700 epoxy group Chemical group 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 239000004611 light stabiliser Substances 0.000 description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 3
- DPNXHTDWGGVXID-UHFFFAOYSA-N 2-isocyanatoethyl prop-2-enoate Chemical compound C=CC(=O)OCCN=C=O DPNXHTDWGGVXID-UHFFFAOYSA-N 0.000 description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical class CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical class CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 239000012965 benzophenone 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
- 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 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- AQHHHDLHHXJYJD-UHFFFAOYSA-N propranolol Chemical compound C1=CC=C2C(OCC(O)CNC(C)C)=CC=CC2=C1 AQHHHDLHHXJYJD-UHFFFAOYSA-N 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- UNVGBIALRHLALK-UHFFFAOYSA-N 1,5-Hexanediol Chemical compound CC(O)CCCCO UNVGBIALRHLALK-UHFFFAOYSA-N 0.000 description 2
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 2
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 101000720524 Gordonia sp. (strain TY-5) Acetone monooxygenase (methyl acetate-forming) Proteins 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- OMRDSWJXRLDPBB-UHFFFAOYSA-N N=C=O.N=C=O.C1CCCCC1 Chemical compound N=C=O.N=C=O.C1CCCCC1 OMRDSWJXRLDPBB-UHFFFAOYSA-N 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 244000028419 Styrax benzoin Species 0.000 description 2
- 235000000126 Styrax benzoin Nutrition 0.000 description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 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 2
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 229960002130 benzoin Drugs 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- FQUNFJULCYSSOP-UHFFFAOYSA-N bisoctrizole Chemical compound N1=C2C=CC=CC2=NN1C1=CC(C(C)(C)CC(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)CC(C)(C)C)N2N=C3C=CC=CC3=N2)O)=C1O FQUNFJULCYSSOP-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 235000019437 butane-1,3-diol Nutrition 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 2
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- GHLKSLMMWAKNBM-UHFFFAOYSA-N dodecane-1,12-diol Chemical compound OCCCCCCCCCCCCO GHLKSLMMWAKNBM-UHFFFAOYSA-N 0.000 description 2
- 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
- 235000019382 gum benzoic Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920005906 polyester polyol Polymers 0.000 description 2
- 229920001955 polyphenylene ether Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical compound CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 description 2
- 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 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical class C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 description 2
- XSMIOONHPKRREI-UHFFFAOYSA-N undecane-1,11-diol Chemical compound OCCCCCCCCCCCO XSMIOONHPKRREI-UHFFFAOYSA-N 0.000 description 2
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 1
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- GNWBLLYJQXKPIP-ZOGIJGBBSA-N (1s,3as,3bs,5ar,9ar,9bs,11as)-n,n-diethyl-6,9a,11a-trimethyl-7-oxo-2,3,3a,3b,4,5,5a,8,9,9b,10,11-dodecahydro-1h-indeno[5,4-f]quinoline-1-carboxamide Chemical compound CN([C@@H]1CC2)C(=O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H](C(=O)N(CC)CC)[C@@]2(C)CC1 GNWBLLYJQXKPIP-ZOGIJGBBSA-N 0.000 description 1
- UCAUDXHLOREEHU-UHFFFAOYSA-N (2,4,6-tributylphenyl) dihydrogen phosphite Chemical compound CCCCC1=CC(CCCC)=C(OP(O)O)C(CCCC)=C1 UCAUDXHLOREEHU-UHFFFAOYSA-N 0.000 description 1
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 description 1
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 description 1
- LTQBNYCMVZQRSD-UHFFFAOYSA-N (4-ethenylphenyl)-trimethoxysilane Chemical compound CO[Si](OC)(OC)C1=CC=C(C=C)C=C1 LTQBNYCMVZQRSD-UHFFFAOYSA-N 0.000 description 1
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- LUHFNMZIUWHSET-UHFFFAOYSA-N spiro[3.4]octane-3,3-diol Chemical compound OC1(O)CCC11CCCC1 LUHFNMZIUWHSET-UHFFFAOYSA-N 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
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- LVEOKSIILWWVEO-UHFFFAOYSA-N tetradecyl 3-(3-oxo-3-tetradecoxypropyl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCC LVEOKSIILWWVEO-UHFFFAOYSA-N 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 1
- MZHULIWXRDLGRR-UHFFFAOYSA-N tridecyl 3-(3-oxo-3-tridecoxypropyl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCC MZHULIWXRDLGRR-UHFFFAOYSA-N 0.000 description 1
- XOALFFJGWSCQEO-UHFFFAOYSA-N tridecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCOC(=O)C=C XOALFFJGWSCQEO-UHFFFAOYSA-N 0.000 description 1
- DENFJSAFJTVPJR-UHFFFAOYSA-N triethoxy(ethyl)silane Chemical compound CCO[Si](CC)(OCC)OCC DENFJSAFJTVPJR-UHFFFAOYSA-N 0.000 description 1
- UDUKMRHNZZLJRB-UHFFFAOYSA-N triethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OCC)(OCC)OCC)CCC2OC21 UDUKMRHNZZLJRB-UHFFFAOYSA-N 0.000 description 1
- SQAZDQFHAOTWGX-UHFFFAOYSA-N triethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)propyl]silane Chemical compound C1C(C(C)C[Si](OCC)(OCC)OCC)CCC2OC21 SQAZDQFHAOTWGX-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- LQZHZFUSFHLGHE-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)propyl]silane Chemical compound C1C(C(C)C[Si](OC)(OC)OC)CCC2OC21 LQZHZFUSFHLGHE-UHFFFAOYSA-N 0.000 description 1
- MPMXRFKBTXXOKT-UHFFFAOYSA-N trimethyl-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)propyl]silane Chemical compound C1C(C(C[Si](C)(C)C)C)CCC2OC21 MPMXRFKBTXXOKT-UHFFFAOYSA-N 0.000 description 1
- QQNZPPCHCWSYHF-UHFFFAOYSA-N tris(2,4-dibutyl-5-methylphenyl) phosphite Chemical compound C1=C(C)C(CCCC)=CC(CCCC)=C1OP(OC=1C(=CC(CCCC)=C(C)C=1)CCCC)OC1=CC(C)=C(CCCC)C=C1CCCC QQNZPPCHCWSYHF-UHFFFAOYSA-N 0.000 description 1
- CFAVHELRAWFONI-UHFFFAOYSA-N tris(2,4-dibutylphenyl) phosphite Chemical compound CCCCC1=CC(CCCC)=CC=C1OP(OC=1C(=CC(CCCC)=CC=1)CCCC)OC1=CC=C(CCCC)C=C1CCCC CFAVHELRAWFONI-UHFFFAOYSA-N 0.000 description 1
- QQBLOZGVRHAYGT-UHFFFAOYSA-N tris-decyl phosphite Chemical compound CCCCCCCCCCOP(OCCCCCCCCCC)OCCCCCCCCCC QQBLOZGVRHAYGT-UHFFFAOYSA-N 0.000 description 1
- ISIZMFAUIWBRRW-UHFFFAOYSA-N tris[2-tert-butyl-4-(3-butyl-4-hydroxy-5-methylphenyl)sulfanyl-5-methylphenyl] phosphite Chemical compound P(OC1=C(C=C(C(=C1)C)SC1=CC(=C(C(=C1)C)O)CCCC)C(C)(C)C)(OC1=C(C=C(C(=C1)C)SC1=CC(=C(C(=C1)C)O)CCCC)C(C)(C)C)OC1=C(C=C(C(=C1)C)SC1=CC(=C(C(=C1)C)O)CCCC)C(C)(C)C ISIZMFAUIWBRRW-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000005050 vinyl trichlorosilane Substances 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09J175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- 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
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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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
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/067—Polyurethanes; Polyureas
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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Abstract
本発明が解決しようとする課題は、粘着力、耐湿熱白化性及び耐湿熱黄変性に優れる紫外線硬化型粘着剤組成物を提供することである。本発明は、ポリエチレングリコール(a1)を含むポリオール(a)、ポリイソシアネート(b)、及び、水酸基又はイソシアネート基を有する(メタ)アクリル化合物(c)を反応させて得られるウレタン(メタ)アクリレート(X)、(メタ)アクリル単量体(Y)、及び光重合開始剤(Z)を含有することを特徴とする紫外線硬化型粘着剤組成物及びそれを用いて得られた粘着剤を提供するものである。本発明の紫外線硬化型粘着剤組成物を用いて得られる粘着剤は、光学部材に使用される粘着剤として好適に使用することができる。特に、タッチパネル、液晶ディスプレイ、プラズマディスプレイ、有機EL、パソコン、携帯電話等のIT関連製品の製造に好適に使用することができる。The problem to be solved by the present invention is to provide an ultraviolet curable pressure-sensitive adhesive composition that is excellent in adhesive strength, wet heat whitening resistance and wet heat yellowing resistance. The present invention provides a urethane (meth) acrylate obtained by reacting a polyol (a) containing polyethylene glycol (a1), a polyisocyanate (b), and a (meth) acrylic compound (c) having a hydroxyl group or an isocyanate group ( An ultraviolet curable pressure-sensitive adhesive composition characterized by containing X), a (meth) acrylic monomer (Y), and a photopolymerization initiator (Z), and a pressure-sensitive adhesive obtained using the same Is. The pressure-sensitive adhesive obtained by using the ultraviolet curable pressure-sensitive adhesive composition of the present invention can be suitably used as a pressure-sensitive adhesive used for an optical member. In particular, it can be suitably used for manufacturing IT-related products such as a touch panel, a liquid crystal display, a plasma display, an organic EL, a personal computer, and a mobile phone.
Description
本発明は、粘着力、耐湿熱白化性及び耐湿熱黄変性に優れる紫外線硬化型粘着剤組成物及び粘着剤に関する。 The present invention relates to an ultraviolet curable pressure-sensitive adhesive composition and a pressure-sensitive adhesive that are excellent in adhesive strength, moisture-and-heat whitening resistance and moisture-and-heat yellowing resistance.
アクリル系粘着剤は、従来から広範な用途で使用されている。特に近年では薄型テレビなどのIT関連製品での用途が拡大しており、高性能、高機能化が進んでいる。しかしながら、IT関連製品の価格も下落しており、高性能化だけではなく高生産性が求められている。 Acrylic adhesives have been used for a wide range of applications. In particular, in recent years, applications for IT-related products such as flat-screen TVs are expanding, and high performance and high functionality are being promoted. However, the prices of IT-related products are also falling, and not only high performance but also high productivity is required.
そのような中、従来型の粘着剤(溶剤系、水系)では必須工程であった溶媒の乾燥工程や、加工から性能が発現するまでに必要なエージング時間などが不要であることから、高生産性が期待できる紫外線硬化型粘着剤が注目されている。更には、従来型の粘着剤に比べて粘着剤層の厚膜化が容易であることから、高機能化が望めるなどのメリットが挙げられ、今後の伸長が期待されている。 Under such circumstances, high productivity is achieved because the drying process of the solvent, which was an essential process for conventional adhesives (solvent-based and water-based), and the aging time required from processing to performance are unnecessary. An ultraviolet curable pressure sensitive adhesive that can be expected to be highly attractive has attracted attention. Furthermore, since it is easy to increase the thickness of the pressure-sensitive adhesive layer compared to conventional pressure-sensitive adhesives, there are advantages such as the expectation of higher functionality, and future growth is expected.
前記IT関連製品で使用可能な紫外線硬化型粘着剤としては、例えば、不飽和二重結合を持つモノマー100質量部に対して、ウレタン結合を有し、かつ、ポリマー末端に不飽和二重結合を有する重量平均分子量が2万以上の高分子量体を5質量部以上、200質量部以下含むことを特徴とする粘着剤組成物が知られている(例えば、特許文献1を参照。)。 Examples of the UV curable adhesive that can be used in the IT-related products include a urethane bond with respect to 100 parts by mass of the monomer having an unsaturated double bond, and an unsaturated double bond at the polymer terminal. A pressure-sensitive adhesive composition containing 5 to 200 parts by mass of a high molecular weight polymer having a weight average molecular weight of 20,000 or more is known (see, for example, Patent Document 1).
しかしながら、前記粘着剤では、湿熱条件下で粘着剤が使用された後に、室温で放置されると粘着剤被膜の白化が起こったり、継時的な黄変が起こる等の問題があった。 However, the pressure-sensitive adhesive has problems such as whitening of the pressure-sensitive adhesive film or continuous yellowing when left at room temperature after the pressure-sensitive adhesive is used under wet heat conditions.
本発明が解決しようとする課題は、粘着力、耐湿熱白化性及び耐湿熱黄変性に優れる紫外線硬化型粘着剤組成物を提供することである。 The problem to be solved by the present invention is to provide an ultraviolet curable pressure-sensitive adhesive composition that is excellent in adhesive strength, moist heat whitening resistance and moist heat yellowing resistance.
本発明者等は、前記課題を解決すべく鋭意研究を進める中で、ウレタン(メタ)アクリレートに着目し、研究を進めた。 The inventors of the present invention, while pursuing earnest research to solve the above problems, paid attention to urethane (meth) acrylate and proceeded with research.
その結果、ウレタン(メタ)アクリレートの原料として用いるポリオールとして、ポリエチレングリコールを必須に含むことにより、前記課題を解決できることを見出し、本発明を完成するに至った。 As a result, it has been found that the above problem can be solved by including polyethylene glycol as a polyol used as a raw material for urethane (meth) acrylate, and the present invention has been completed.
即ち、本発明は、ポリエチレングリコール(a1)を含むポリオール(a)、ポリイソシアネート(b)、及び、水酸基又はイソシアネート基を有する(メタ)アクリル化合物(c)を反応させて得られるウレタン(メタ)アクリレート(X)、(メタ)アクリル単量体(Y)、及び光重合開始剤(Z)を含有し、前記ポリエチレングリコール(a1)の使用量が前記ポリオール(a1)中1〜60質量%の範囲であることを特徴とする紫外線硬化型粘着剤組成物及びそれを用いて得られた粘着剤を提供するものである。
That is, the present invention is a urethane (meth) obtained by reacting a polyol (a) containing polyethylene glycol (a1), a polyisocyanate (b), and a (meth) acrylic compound (c) having a hydroxyl group or an isocyanate group. It contains acrylate (X), (meth) acrylic monomer (Y), and photopolymerization initiator (Z), and the amount of polyethylene glycol (a1) used is 1 to 60% by mass in the polyol (a1). The present invention provides an ultraviolet curable pressure-sensitive adhesive composition and a pressure-sensitive adhesive obtained using the same.
本発明の紫外線硬化型粘着剤組成物を用いて得られる粘着剤は、優れた粘着力、保持力、耐湿熱白化性及び耐湿熱黄変性を具備するものである。 The pressure-sensitive adhesive obtained using the ultraviolet curable pressure-sensitive adhesive composition of the present invention has excellent pressure-sensitive adhesive strength, holding power, wet heat whitening resistance and wet heat yellowing resistance.
本発明の紫外線硬化型粘着剤組成物を用いて得られる粘着剤は、光学部材に使用される粘着剤として好適に使用することができる。特に、タッチパネル、液晶ディスプレイ、プラズマディスプレイ、有機EL、パソコン、携帯電話等のIT関連製品の製造に好適に使用することができる。 The pressure-sensitive adhesive obtained by using the ultraviolet curable pressure-sensitive adhesive composition of the present invention can be suitably used as a pressure-sensitive adhesive used for an optical member. In particular, it can be suitably used for manufacturing IT-related products such as a touch panel, a liquid crystal display, a plasma display, an organic EL, a personal computer, and a mobile phone.
本発明の紫外線硬化型粘着剤組成物は、ポリエチレングリコール(a1)を含むポリオール(a)、ポリイソシアネート(b)、及び、水酸基又はイソシアネート基を有する(メタ)アクリル化合物(c)を反応させて得られるウレタン(メタ)アクリレート(X)、(メタ)アクリル単量体(Y)、及び光重合開始剤(Z)を含有するものである。 The ultraviolet curable pressure-sensitive adhesive composition of the present invention is obtained by reacting a polyol (a) containing polyethylene glycol (a1), a polyisocyanate (b), and a (meth) acrylic compound (c) having a hydroxyl group or an isocyanate group. The resulting urethane (meth) acrylate (X), (meth) acrylic monomer (Y), and photopolymerization initiator (Z) are contained.
前記ポリエチレングリコール(a1)は、紫外線硬化型粘着剤組成物の親水性を向上させるものであり、粘着剤被膜が湿熱条件にて暴露された際に湿気や水分を均一に吸収できることから、粘着剤被膜の耐湿熱後の白化抑制に寄与するものである。また、前記ポリエチレングリコール(a1)を用いることにより、黄変しやすい(メタ)アクリル単量体の使用量を低減したり、また不使用とすることもできることから、粘着力を保持しつつ優れた耐湿熱黄変性も付与することができる。 The polyethylene glycol (a1) improves the hydrophilicity of the ultraviolet curable pressure-sensitive adhesive composition, and can absorb moisture and moisture uniformly when the pressure-sensitive adhesive film is exposed under wet heat conditions. This contributes to suppression of whitening of the coating after heat and humidity resistance. In addition, by using the polyethylene glycol (a1), the amount of the (meth) acrylic monomer that easily yellows can be reduced, or it can be made unusable, so that the adhesive strength is maintained and excellent. Moisture heat yellowing resistance can also be imparted.
前記ポリエチレングリコール(a1)は、ウレタン(メタ)アクリレート(X)の原料として用いられるが、粘着力、耐湿熱白化性及び耐湿熱黄変性の点から、直鎖状のもの、分岐状のもの、どちらを用いてもよく、前記ウレタン(メタ)アクリレート(X)中のグラフト鎖としても、ブロック鎖としても存在してよい。 The polyethylene glycol (a1) is used as a raw material for the urethane (meth) acrylate (X). From the viewpoints of adhesive strength, wet heat whitening resistance and wet heat yellowing resistance, a linear one, a branched one, Either may be used, and it may exist as a graft chain or a block chain in the urethane (meth) acrylate (X).
前記ポリエチレングリコール(a1)の数平均分子量としては、耐湿熱白化性及び耐湿熱黄変性をより一層向上できる点から、200〜5,000の範囲であることが好ましく、更に合成時の反応性制御の容易性や低温での保存安定性等をより一層向上できる点から、200〜2,000の範囲がより好ましく、200〜1,000の範囲が更に好ましい。なお、前記ポリエチレングリコール(a1)の数平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)法により、下記の条件で測定した値を示す。 The number average molecular weight of the polyethylene glycol (a1) is preferably in the range of 200 to 5,000 from the viewpoint of further improving wet heat and heat whitening resistance and heat and heat yellowing resistance, and further, reactivity control during synthesis. The range of 200 to 2,000 is more preferable, and the range of 200 to 1,000 is more preferable, from the viewpoint that the ease of storage and storage stability at low temperatures can be further improved. In addition, the number average molecular weight of the said polyethylene glycol (a1) shows the value measured on condition of the following by gel permeation chromatography (GPC) method.
測定装置:高速GPC装置(東ソー株式会社製「HLC−8220GPC」)
カラム:東ソー株式会社製の下記のカラムを直列に接続して使用した。
「TSKgel G5000」(7.8mmI.D.×30cm)×1本
「TSKgel G4000」(7.8mmI.D.×30cm)×1本
「TSKgel G3000」(7.8mmI.D.×30cm)×1本
「TSKgel G2000」(7.8mmI.D.×30cm)×1本
検出器:RI(示差屈折計)
カラム温度:40℃
溶離液:テトラヒドロフラン(THF)
流速:1.0mL/分
注入量:100μL(試料濃度0.4質量%のテトラヒドロフラン溶液)
標準試料:下記の標準ポリスチレンを用いて検量線を作成した。Measuring device: High-speed GPC device (“HLC-8220GPC” manufactured by Tosoh Corporation)
Column: The following columns manufactured by Tosoh Corporation were connected in series.
"TSKgel G5000" (7.8 mm ID x 30 cm) x 1 "TSKgel G4000" (7.8 mm ID x 30 cm) x 1 "TSKgel G3000" (7.8 mm ID x 30 cm) x 1 “TSKgel G2000” (7.8 mm ID × 30 cm) × 1 detector: RI (differential refractometer)
Column temperature: 40 ° C
Eluent: Tetrahydrofuran (THF)
Flow rate: 1.0 mL / min Injection amount: 100 μL (tetrahydrofuran solution with a sample concentration of 0.4 mass%)
Standard sample: A calibration curve was prepared using the following standard polystyrene.
(標準ポリスチレン)
東ソー株式会社製「TSKgel 標準ポリスチレン A−500」
東ソー株式会社製「TSKgel 標準ポリスチレン A−1000」
東ソー株式会社製「TSKgel 標準ポリスチレン A−2500」
東ソー株式会社製「TSKgel 標準ポリスチレン A−5000」
東ソー株式会社製「TSKgel 標準ポリスチレン F−1」
東ソー株式会社製「TSKgel 標準ポリスチレン F−2」
東ソー株式会社製「TSKgel 標準ポリスチレン F−4」
東ソー株式会社製「TSKgel 標準ポリスチレン F−10」
東ソー株式会社製「TSKgel 標準ポリスチレン F−20」
東ソー株式会社製「TSKgel 標準ポリスチレン F−40」
東ソー株式会社製「TSKgel 標準ポリスチレン F−80」
東ソー株式会社製「TSKgel 標準ポリスチレン F−128」
東ソー株式会社製「TSKgel 標準ポリスチレン F−288」
東ソー株式会社製「TSKgel 標準ポリスチレン F−550」(Standard polystyrene)
"TSKgel standard polystyrene A-500" manufactured by Tosoh Corporation
"TSKgel standard polystyrene A-1000" manufactured by Tosoh Corporation
"TSKgel standard polystyrene A-2500" manufactured by Tosoh Corporation
"TSKgel standard polystyrene A-5000" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-1" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-2" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-4" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-10" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-20" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-40" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-80" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-128" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-288" manufactured by Tosoh Corporation
"TSKgel standard polystyrene F-550" manufactured by Tosoh Corporation
前記ポリエチレングリコール(a1)の使用量としては、粘着力、保持力、耐湿熱白化性及び耐湿熱黄変性をより一層向上できる点から、前記ポリオール(a)中1〜60質量%の範囲であることが好ましく、3〜50質量%の範囲がより好ましく、5〜40質量%の範囲が更に好ましく、10.5〜33質量%の範囲が特に好ましい。 The amount of the polyethylene glycol (a1) used is in the range of 1 to 60% by mass in the polyol (a) from the viewpoint that the adhesive strength, holding power, moist heat whitening resistance and moist heat yellowing resistance can be further improved. The range of 3 to 50% by mass is more preferable, the range of 5 to 40% by mass is further preferable, and the range of 10.5 to 33% by mass is particularly preferable.
また、ウレタン(メタ)アクリレート(X)中の前記ポリエチレングリコール(a1)の含有量としては、粘着力、保持力、耐湿熱白化性及び耐湿熱黄変性をより一層向上できる点から、0.1〜50質量%の範囲であることが好ましく、5〜35質量%の範囲がより好ましく、9〜25質量%の範囲が更に好ましい。 Moreover, as content of the said polyethyleneglycol (a1) in urethane (meth) acrylate (X), from the point which can improve adhesive force, holding power, wet heat whitening resistance, and heat-and-humidity yellowing resistance further, it is 0.1. It is preferably in the range of ˜50 mass%, more preferably in the range of 5 to 35 mass%, and still more preferably in the range of 9 to 25 mass%.
前記ポリエチレングリコール(a1)以外に用いることができる前記ポリオール(a)としては、例えば、ポリエチレングリコール以外のポリエーテルポリオール、ポリエステルポリオール、ポリカーボネートポリオール、アクリルポリオール、ブタジエンポリオール等を用いることができる。これらのポリオールは単独で用いても2種以上を併用してもよい。これらの中でも、粘着力、保持力、耐湿熱白化性及び耐湿熱黄変性をより一層向上できる点から、前記ポリエーテルポリオール、ポリカーボネートポリオールを用いることが好ましい。 Examples of the polyol (a) that can be used in addition to the polyethylene glycol (a1) include polyether polyols, polyester polyols, polycarbonate polyols, acrylic polyols, and butadiene polyols other than polyethylene glycol. These polyols may be used alone or in combination of two or more. Among these, it is preferable to use the polyether polyol and the polycarbonate polyol from the viewpoint that adhesive strength, holding power, wet heat whitening resistance and wet heat yellowing resistance can be further improved.
前記ポリエーテルポリオールとしては、例えば、エチレンオキサイド、プロピレンオキサイド、ブチレンオキサイド等のアルキレンオキサイドの1種または2種以上を、2個以上の活性水素を有する化合物に付加重合させ得られた生成物や、テトラヒドロフランを開環重合して得られるポリテトラメチレングリコール、テトラヒドロフランとアルキル置換テトラヒドロフランを共重合させた変性ポリテトラメチレングリコールや、ネオペンチルグリコールとテトラヒドロフランを共重合させた変性ポリテトラメチレングリコール等を用いることができる。 Examples of the polyether polyol include products obtained by addition polymerization of one or more alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide, etc., to a compound having two or more active hydrogens, Use polytetramethylene glycol obtained by ring-opening polymerization of tetrahydrofuran, modified polytetramethylene glycol copolymerized with tetrahydrofuran and alkyl-substituted tetrahydrofuran, modified polytetramethylene glycol copolymerized with neopentyl glycol and tetrahydrofuran, etc. Can do.
前記2個以上の活性水素を有する化合物としては、例えばエチレングリコール、ジエチレングリコール、トリエチレングリコール、テトラエチレングリコール、1,2−プロパンジオール、1,3−プロパンジオール、ジプロピレングリコール、トリプロピレングリコール、1,2−ブタンジオール、1,3−ブタンジオール、1,4−ブタンジオール、2,3−ブタンジオール、1,5−ペンタンジオール、1,5−ヘキサンジオール、1,6−ヘキサンジオール、2,5−ヘキサンジオール、1,7−ヘプタンジオール、1,8−オクタンジオール、1,9−ノナンジオール、1,10−デカンジオール、1,11−ウンデカンジオール、1,12−ドデカンジオール、2−メチル−1,3−プロパンジオール、ネオペンチルグリコール、2−ブチル−2−エチル−1,3−プロパンジオール、3−メチル−1,5−ペンタンジオール、2−エチル−1,3−プロパンジオール、3−メチル−1,5−ペンタンジオール、2−エチル−1,3−ヘキサンジオール、2−メチル−1,8−オクタンジオール、ハイドロキノン、レゾルシン、ビスフェノールA、ビスフェノールF、4,4’−ビスフェノール等の比較的低分子量のジヒドロキシ化合物;1,2−シクロブタンジオール、1,3−シクロペンタンジオール、1,4−シクロヘキサンジオール、シクロヘプタンジオール、シクロオクタンジオール、1,4−シクロヘキサンジメタノール、ヒドロキシプロピルシクロヘキサノール、トリシクロ[5,2,1,0,2,6]デカン−ジメタノール、ビシクロ[4,3,0]−ノナンジオール、ジシクロヘキサンジオール、トリシクロ[5,3,1,1]ドデカンジオール、ビシクロ[4,3,0]ノナンジメタノール、トリシクロ[5,3,1,1]ドデカン−ジエタノール、ヒドロキシプロピルトリシクロ[5,3,1,1]ドデカノール、スピロ[3,4]オクタンジオール、ブチルシクロヘキサンジオール、1,1’−ビシクロヘキシリデンジオール、シクロヘキサントリオール、水素添加ビスフェールA、1,3−アダマンタンジオール等の脂環式ポリオール;ポリエチレングリコール、ポリプロピレングリコール、ポリテトラメチレングリコール等のポリエーテルポリオール;ポリヘキサメチレンアジペート、ポリヘキサメチレンサクシネート、ポリカプロラクトン等のポリエステルポリオールなどを用いることができる。 Examples of the compound having two or more active hydrogens include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,2-propanediol, 1,3-propanediol, dipropylene glycol, tripropylene glycol, 1 , 2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 1,5-hexanediol, 1,6-hexanediol, 2, 5-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 1,11-undecanediol, 1,12-dodecanediol, 2-methyl -1,3-propanediol, neopentyl glycol 2-butyl-2-ethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, 2-ethyl-1,3-propanediol, 3-methyl-1,5-pentanediol, 2- Relatively low molecular weight dihydroxy compounds such as ethyl-1,3-hexanediol, 2-methyl-1,8-octanediol, hydroquinone, resorcin, bisphenol A, bisphenol F, 4,4′-bisphenol, 1,2- Cyclobutanediol, 1,3-cyclopentanediol, 1,4-cyclohexanediol, cycloheptanediol, cyclooctanediol, 1,4-cyclohexanedimethanol, hydroxypropylcyclohexanol, tricyclo [5,2,1,0,2 , 6] decane-dimethanol, bicyclo [4,3,0] Nonanediol, dicyclohexanediol, tricyclo [5,3,1,1] dodecanediol, bicyclo [4,3,0] nonanedimethanol, tricyclo [5,3,1,1] dodecane-diethanol, hydroxypropyltricyclo [5,3,1,1] dodecanol, spiro [3,4] octanediol, butylcyclohexanediol, 1,1′-bicyclohexylidenediol, cyclohexanetriol, hydrogenated bisphenol A, 1,3-adamantanediol For example, alicyclic polyols such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol and other polyether polyols; polyhexamethylene adipate, polyhexamethylene succinate, polycaprolactone and other polyester polyols Can be.
前記ポリエーテルポリオールの数平均分子量としては、200〜3,000の範囲が好ましく、500〜2,000の範囲がより好ましく、500〜1,500の範囲が更に好ましい。なお、前記ポリエーテルポリオールの数平均分子量は、前記ポリエチレングリコール(a1)の数平均分子量と同様に測定して得られた値を示す。 The number average molecular weight of the polyether polyol is preferably in the range of 200 to 3,000, more preferably in the range of 500 to 2,000, and still more preferably in the range of 500 to 1,500. In addition, the number average molecular weight of the said polyether polyol shows the value obtained by measuring similarly to the number average molecular weight of the said polyethyleneglycol (a1).
前記ポリカーボネートポリオールとしては、例えば、炭酸エステル及び/又はホスゲンと、前記2個以上の活性水素を有する化合物とを反応させて得られるものを用いることができる。 As said polycarbonate polyol, what is obtained by making carbonate ester and / or phosgene react with the said compound which has two or more active hydrogens can be used, for example.
前記炭酸エステルとしては、例えば、メチルカーボネート、ジメチルカーボネート、エチルカーボネート、ジエチルカーボネート、シクロカーボネート、ジフェニルカーボネート等を用いることができる。 As the carbonate ester, for example, methyl carbonate, dimethyl carbonate, ethyl carbonate, diethyl carbonate, cyclocarbonate, diphenyl carbonate and the like can be used.
前記ポリカーボネートポリオールの水酸基価としては、粘着力をより一層向上できる点から、30〜230mgKOH/gの範囲であることが好ましく、50〜230mgKOH/gの範囲がより好ましい。なお、前記ポリカーボネートポリオールの水酸基価は、JISK0070−1992に準拠して測定を行った値を示す。 The hydroxyl value of the polycarbonate polyol is preferably in the range of 30 to 230 mgKOH / g, more preferably in the range of 50 to 230 mgKOH / g, from the viewpoint that the adhesive force can be further improved. In addition, the hydroxyl value of the said polycarbonate polyol shows the value measured based on JISK0070-1992.
前記ポリイソシアネート(b)としては、例えば、キシリレンジイソシアネート、フェニレンジイソシアネート、トリレンジイソシアネート、ジフェニルメタンジイソシアネート、ナフタレンジイソシアネート等の芳香族ジイソシアネート;ヘキサメチレンジイソシアネート、リジンジイソシアネート、シクロヘキサンジイソシアネート、イソホロンジイソシアネート、4,4’−ジシクロヘキシルメタンジイソシアネート、ジイソシアナートメチルシクロヘキサン、テトラメチルキシリレンジイソシアネート等の脂肪族または脂環構造を有するジイソシアネートなどを用いることができる。これらのポリイソシアネートは単独で用いても2種以上を併用してもよい。これらの中でも、粘着力、保持力及び耐湿熱黄変性をより一層向上できる点から、脂環構造を有するジイソシアネートを用いることが好ましく、4,4’−ジシクロヘキシルメタンジイソシアネート、イソホロンジイソシアネート、シクロヘキサンジイソシアネート、ジイソシアナートメチルシクロヘキサンを用いることがより好ましい。 Examples of the polyisocyanate (b) include aromatic diisocyanates such as xylylene diisocyanate, phenylene diisocyanate, tolylene diisocyanate, diphenylmethane diisocyanate, naphthalene diisocyanate; hexamethylene diisocyanate, lysine diisocyanate, cyclohexane diisocyanate, isophorone diisocyanate, 4,4 ′. -Diisocyanate having an aliphatic or alicyclic structure such as dicyclohexylmethane diisocyanate, diisocyanate methylcyclohexane, and tetramethylxylylene diisocyanate can be used. These polyisocyanates may be used alone or in combination of two or more. Among these, it is preferable to use a diisocyanate having an alicyclic structure from the viewpoint of further improving the adhesive strength, holding power, and heat and heat yellowing resistance, and 4,4′-dicyclohexylmethane diisocyanate, isophorone diisocyanate, cyclohexane diisocyanate, diester It is more preferable to use isocyanate methylcyclohexane.
前記水酸基又はイソシアネート基を有する(メタ)アクリル化合物(c)は、ウレタン(メタ)アクリレート(X)中に(メタ)アクリロイル基を導入する目的で用いるものである。 The (meth) acrylic compound (c) having a hydroxyl group or an isocyanate group is used for the purpose of introducing a (meth) acryloyl group into the urethane (meth) acrylate (X).
前記化合物(c)として用いることができる前記水酸基を有する(メタ)アクリル化合物としては、例えば、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、3−ヒドロキシプロピルアクリレート、3−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、6−ヒドロキシヘキシルアクリレート、ヒドロキシエチルアクリルアミド等の水酸基を有する(メタ)アクリル酸アルキルエステル;トリメチロールプロパンジ(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、ジペンタエリスリトールペンタ(メタ)アクリレート等の水酸基を有する多官能(メタ)アクリレート;ポリエチレングリコールモノアクリレート、ポリプロピレングリコールモノアクリレートなどを用いることができる。これらのなかでも、紫外線による硬化性がより一層向上する点から、水酸基を有するアクリル化合物を用いることがより好ましく、原料入手のしやすさ、硬化性及び粘着物性をより一層向上できる点から、水酸基を有するアクリル酸アルキルエステルを用いることが更に好ましく、2−ヒドロキシエチルアクリレート、4−ヒドロキシブチルアクリレートを用いることが特に好ましい。 Examples of the (meth) acrylic compound having a hydroxyl group that can be used as the compound (c) include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl acrylate, 3- (Meth) acrylic acid alkyl ester having a hydroxyl group such as hydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl acrylate, hydroxyethyl acrylamide; trimethylolpropane di (meth) acrylate, pentaerythritol tris Polyfunctional (meth) acrylates having hydroxyl groups such as (meth) acrylate and dipentaerythritol penta (meth) acrylate; polyethylene glycol monoacrylate, polypropylene group Or the like can be used call monoacrylate. Among these, it is more preferable to use an acrylic compound having a hydroxyl group from the viewpoint of further improving the curability by ultraviolet rays, and from the point that the raw material availability, curability and adhesive properties can be further improved. It is more preferable to use an acrylic acid alkyl ester having a 2-hydroxyethyl acrylate or 4-hydroxybutyl acrylate.
また、前記化合物(c)として用いることができるイソシアネート基を有する(メタ)アクリル化合物としては、例えば、2−(メタ)アクリロイルオキシエチルイソシアネート、2−(2−(メタ)アクリロイルオキシエチルオキシ)エチルイソシアネート、1,1−ビス((メタ)アクリロイルオキシメチル)エチルイソシアネート等を用いることができる。これらの中でも、原料入手の容易性の点から、 2−(メタ)アクリロイルオキシエチルイソシアネートを用いることが好ましく、2−アクリロイルオキシエチルイソシアネートがより好ましい。 Examples of the (meth) acrylic compound having an isocyanate group that can be used as the compound (c) include 2- (meth) acryloyloxyethyl isocyanate and 2- (2- (meth) acryloyloxyethyloxy) ethyl. Isocyanate, 1,1-bis ((meth) acryloyloxymethyl) ethyl isocyanate and the like can be used. Among these, 2- (meth) acryloyloxyethyl isocyanate is preferably used, and 2-acryloyloxyethyl isocyanate is more preferable from the viewpoint of easy availability of raw materials.
前記化合物(c)として水酸基を有する(メタ)アクリル化合物を用いる場合の前記ウレタン(メタ)アクリレート(X)の製造方法としては、例えば、無溶剤下で、前記ポリオール(a)と前記(メタ)アクリル化合物(c)とを反応系中に仕込んだ後に、前記ポリイソシアネート(b)を供給し、混合、反応させることによって製造する方法や、無溶剤下で、前記ポリオール(a)と前記ポリイソシアネート(b)とを反応させることによってイソシアネート基を有するウレタンプレポリマーを得、次いで、水酸基を有する前記(メタ)アクリル化合物(c)を供給し、混合、反応させることによって製造する方法等を用いることができる。前記反応はいずれにおいても、20〜120℃の条件下で概ね30分〜24時間程度行うことが好ましい。 As a manufacturing method of the said urethane (meth) acrylate (X) in the case of using the (meth) acrylic compound which has a hydroxyl group as the said compound (c), the said polyol (a) and the said (meth) under solvent-free, for example. A method in which an acrylic compound (c) is charged into a reaction system and then the polyisocyanate (b) is supplied, mixed and reacted, and the polyol (a) and the polyisocyanate are prepared without solvent. A urethane prepolymer having an isocyanate group is obtained by reacting with (b), and then the (meth) acrylic compound (c) having a hydroxyl group is supplied, mixed, and reacted to be used. Can do. In any case, the reaction is preferably carried out under a condition of 20 to 120 ° C. for about 30 minutes to 24 hours.
また、前記化合物(c)としてイソシアネート基を有する(メタ)アクリル化合物を用いる場合のウレタン(メタ)アクリレート(X)の製造方法としては、例えば、無溶剤下で、前記ポリオール(a)と前記ポリイソシアネート(b)とを仕込み、反応させることによって水酸基を有するウレタンプレポリマーを得、次いで、イソシアネート基を有する前記(メタ)アクリル化合物(c)を供給し、混合、反応させることによって製造する方法等を用いることができる。前記反応はいずれにおいても、20〜120℃の条件下で概ね30分〜24時間程度行うことが好ましい。 Moreover, as a manufacturing method of urethane (meth) acrylate (X) in the case of using the (meth) acryl compound which has an isocyanate group as said compound (c), the said polyol (a) and the said polysiloxane are carried out under a non-solvent, for example. A method for producing a urethane prepolymer having a hydroxyl group by charging and reacting with isocyanate (b), then supplying the (meth) acrylic compound (c) having an isocyanate group, mixing and reacting, etc. Can be used. In any case, the reaction is preferably carried out under a condition of 20 to 120 ° C. for about 30 minutes to 24 hours.
前記ウレタン(メタ)アクリレート(X)の製造は、有機溶剤や水系媒体の存在下で行っても良い。また、有機溶剤や水系媒体に代えて、後述する(メタ)アクリル単量体(Y)存在下で製造してもよい。 The urethane (meth) acrylate (X) may be produced in the presence of an organic solvent or an aqueous medium. Moreover, it may replace with an organic solvent and an aqueous medium, and may manufacture in the presence of the (meth) acryl monomer (Y) mentioned later.
前記ポリオール(a)と前記ポリイソシアネート(b)と前記(メタ)アクリル化合物(c)との反応は、前記ポリオール(a)が有する水酸基と前記(メタ)アクリル化合物(c)が有する水酸基の合計量と、ポリイソシアネート(b)の有するイソシアネート基との当量割合[イソシアネート基/水酸基の合計量]=0.75〜1の範囲で行うことが、得られるウレタン(メタ)アクリレート(X)の分子量を制御する上で好ましく、0.79〜0.995の範囲であることがより好ましい。また、前記当量割合が1を超える場合で反応させても良いが、その場合、ウレタン(メタ)アクリレート(X)のイソシアネート基を失活させることを目的として、メタノールなどのアルコールを用いることが好ましい。その場合には、前記ポリオール(a)が有する水酸基と前記(メタ)アクリル化合物(dc)が有する水酸基とアルコールが有する水酸基の合計量と、前記ポリイソシアネート基との当量割合[イソシアネート基/水酸基の合計量]が前記範囲内となるように調整することが好ましい。 The reaction of the polyol (a), the polyisocyanate (b), and the (meth) acrylic compound (c) is the sum of the hydroxyl groups of the polyol (a) and the hydroxyl groups of the (meth) acrylic compound (c). The molecular weight of the urethane (meth) acrylate (X) to be obtained is the equivalent ratio of the amount and the isocyanate group of the polyisocyanate (b) [total amount of isocyanate group / hydroxyl group] = 0.75-1 Is preferable, and the range of 0.79 to 0.995 is more preferable. In addition, the reaction may be performed when the equivalent ratio exceeds 1, but in that case, it is preferable to use an alcohol such as methanol for the purpose of deactivating the isocyanate group of the urethane (meth) acrylate (X). . In that case, the total amount of the hydroxyl group of the polyol (a), the hydroxyl group of the (meth) acrylic compound (dc) and the hydroxyl group of the alcohol, and the equivalent ratio of the polyisocyanate group [isocyanate group / hydroxyl group It is preferable to adjust so that [total amount] is within the above range.
また、前記ウレタン(メタ)アクリレート(X)のイソシアネート基を失活させることを目的として使用可能なアルコールとしては、例えば、メタノール、エタノール、プロパノール、ブタノールなどの1官能アルコールや、1,2−プロピレングリコールや1,3−ブチレングリコールなどの1級と2級の水酸基からなる2官能アルコール等を用いてもよい。 Examples of alcohols that can be used to deactivate the isocyanate group of the urethane (meth) acrylate (X) include monofunctional alcohols such as methanol, ethanol, propanol, and butanol, and 1,2-propylene. A bifunctional alcohol composed of primary and secondary hydroxyl groups such as glycol and 1,3-butylene glycol may be used.
また、ウレタン(メタ)アクリレート(X)を製造する際には、必要に応じて重合禁止剤やウレタン化触媒等を用いてもよい。 Moreover, when manufacturing urethane (meth) acrylate (X), you may use a polymerization inhibitor, a urethanization catalyst, etc. as needed.
前記重合禁止剤としては、例えば、3,5−ビスターシャリーブチル−4−ヒドロキシトルエン、ハイドロキノン、メチルハイドロキノン、ハイドロキノンモノメチルエーテル(メトキノン)、パラターシャリーブチルカテコールメトキシフェノール、2,6−ジターシャリーブチルクレゾール、フェノチアジン、テトラメチルチウラムジスルフィド、ジフェニルアミン、ジニトロベンゼン等を用いることができる。 Examples of the polymerization inhibitor include 3,5-bistertiary butyl-4-hydroxytoluene, hydroquinone, methyl hydroquinone, hydroquinone monomethyl ether (methoquinone), para tertiary butyl catechol methoxyphenol, and 2,6-ditertiary butyl cresol. Phenothiazine, tetramethylthiuram disulfide, diphenylamine, dinitrobenzene and the like can be used.
前記ウレタン化触媒としては、例えば、トリエチルアミン、トリエチレンジアミン、N−メチルモルホリン等の含窒素化合物、酢酸カリウム、ステアリン酸亜鉛、オクチル酸錫等の金属塩、ジブチルチンラウレート、ジルコニウムテトラアセチルアセトネート等の有機金属化合物などを用いることができる。 Examples of the urethanization catalyst include nitrogen-containing compounds such as triethylamine, triethylenediamine, and N-methylmorpholine, metal salts such as potassium acetate, zinc stearate, and tin octylate, dibutyltin laurate, zirconium tetraacetylacetonate, and the like. These organometallic compounds can be used.
前記ウレタン(メタ)アクリレート(X)は、光照射や加熱等によってラジカル重合を進行させる(メタ)アクリロイル基を有するものである。前記(メタ)アクリロイル基の当量としては、粘着力や段差追従性等をより一層向上できる点から、1,000〜200,000g/eq.の範囲であることが好ましく、5,000〜100,000g/eq.の範囲がより好ましい。なお、前記(メタ)アクリロイル基の当量は、前記ポリオール(a)とポリイソシアネート(b)と(メタ)アクリル化合物(d)との合計質量を、前記ウレタン(メタ)アクリレート(X)中に存在する(メタ)アクリル基の当量で除した値を示す。また、本発明において、「(メタ)アクリル化合物」とは、メタクリル化合物とアクリル化合物の一方又は両方をいい、「(メタ)アクリレート」とは、メタクリレートとアクリレートの一方又は両方をいい、「(メタ)アクリロイル基」とは、メタクリロイル基とアクリロイル基の一方又は両方をいい、「(メタ)アクリル酸」とは、メタクリル酸とアクリル酸の一方又は両方をいい、「(メタ)アクリル単量体」とは、メタクリル単量体とアクリル単量体の一方又は両方をいう。 The urethane (meth) acrylate (X) has a (meth) acryloyl group that promotes radical polymerization by light irradiation, heating, or the like. As an equivalent of the (meth) acryloyl group, 1,000 to 200,000 g / eq. It is preferable that it is the range of 5,000-100,000 g / eq. The range of is more preferable. The equivalent weight of the (meth) acryloyl group is the total mass of the polyol (a), polyisocyanate (b), and (meth) acryl compound (d) in the urethane (meth) acrylate (X). It shows the value divided by the equivalent of the (meth) acryl group. In the present invention, “(meth) acrylic compound” refers to one or both of a methacrylic compound and an acrylic compound, and “(meth) acrylate” refers to one or both of methacrylate and acrylate, ") Acryloyl group" means one or both of methacryloyl group and acryloyl group, and "(meth) acrylic acid" means one or both of methacrylic acid and acrylic acid, and "(meth) acrylic monomer" Means one or both of a methacrylic monomer and an acrylic monomer.
前記ウレタン(メタ)アクリレート(X)の重量平均分子量としては、優れた粘着力と保持力とを両立でき、かつ、良好な塗工作業性を付与できる観点から、5,000〜200,000の範囲であることが好ましく、10,000〜100,000の範囲がより好ましい。なお、前記ウレタン(メタ)アクリレート(X)の重量平均分子量は、前記ポリエチレングリコール(a1)の数平均分子量と同様にして測定し得られた値を示す。 The urethane (meth) acrylate (X) has a weight average molecular weight of 5,000 to 200,000 from the viewpoint of achieving both excellent adhesive strength and holding power and imparting good coating workability. The range is preferable, and the range of 10,000 to 100,000 is more preferable. In addition, the weight average molecular weight of the said urethane (meth) acrylate (X) shows the value obtained by measuring similarly to the number average molecular weight of the said polyethyleneglycol (a1).
前記(メタ)アクリル単量体(Y)としては、例えば、メチル(メタ)アクリレート、エチル(メタ)アクリレート、プロピル(メタ)アクリレート、イソプロピル(メタ)アクリレート、ブチル(メタ)アクリレート、sec−ブチル(メタ)アクリレート、イソブチル(メタ)アクリレート、2−エチルブチル(メタ)アクリレート、n−ペンチル(メタ)アクリレート、ヘキシル(メタ)アクリレート、2−エチルヘキシル(メタ)アクリレート、ヘプチル(メタ)アクリレート、オクチル(メタ)アクリレート、ノニル(メタ)アクリレート、ドデシル(メタ)アクリレート、3−メチルブチル(メタ)アクリレート、イソオクチル(メタ)アクリレート、ラウリル(メタ)アクリレート、トリデシル(メタ)アクリレート、ステアリル(メタ)アクリレート、ネオペンチル(メタ)アクリレート、ヘキサデシル(メタ)アクリレート、イソアミル(メタ)アクリレート等の脂肪族(メタ)アクリレート;イソボロニル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、テトラヒドロフルフリル(メタ)アクリレート等の脂環式(メタ)アクリレート;3−メトキシブチル(メタ)アクリレート)、2−メトキシエチル(メタ)アクリレート、3−メトキシプロピル(メタ)アクリレート、2−メトキシブチル(メタ)アクリレート、オキシエチレンの付加モル数が1〜15の範囲のメトキシポリエチレングリコールアクリレート、エトキシ−ジエチレングリコール(メタ)アクリレート、エチルカルビトール(メタ)アクリレート等のエーテル基を有する(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、4−ヒドロキシブチル(メタ)アクリレート等の水酸基を有する(メタ)アクリレート;ベンジル(メタ)アクリレート、ベンジル(メタ)アクリレート、フェノキシエチル(メタ)アクリレート、フェノキシポリエチレングリコールアクリレート、フェニル(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)アクリレート等の芳香族(メタ)アクリレート;(メタ)アクリルアミド、ジメチル(メタ)アクリルアミド、アクリロイルモルホリン、ジメチルアミノプロピル(メタ)アクリルアミド、イソプロピル(メタ)アクリルアミド、ジエチル(メタ)アクリルアミド、ヒドロキシエチル(メタ)アクリルアミド、ダイアセトン(メタ)アクリルアミド等の窒素原子を有する(メタ)アクリル単量体などを用いることができる。これらの(メタ)アクリル単量体は単独で用いても2種以上を併用してもよい。 Examples of the (meth) acrylic monomer (Y) include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, sec-butyl ( (Meth) acrylate, isobutyl (meth) acrylate, 2-ethylbutyl (meth) acrylate, n-pentyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, heptyl (meth) acrylate, octyl (meth) Acrylate, nonyl (meth) acrylate, dodecyl (meth) acrylate, 3-methylbutyl (meth) acrylate, isooctyl (meth) acrylate, lauryl (meth) acrylate, tridecyl (meth) acrylate, steer Aliphatic (meth) acrylates such as ru (meth) acrylate, neopentyl (meth) acrylate, hexadecyl (meth) acrylate, isoamyl (meth) acrylate; isobornyl (meth) acrylate, cyclohexyl (meth) acrylate, tetrahydrofurfuryl (meth) Alicyclic (meth) acrylates such as acrylate; 3-methoxybutyl (meth) acrylate), 2-methoxyethyl (meth) acrylate, 3-methoxypropyl (meth) acrylate, 2-methoxybutyl (meth) acrylate, oxyethylene Having an ether group such as methoxypolyethylene glycol acrylate, ethoxy-diethylene glycol (meth) acrylate, ethyl carbitol (meth) acrylate and the like in the range of 1-15 added moles ( ) Acrylate; (meth) acrylate having a hydroxyl group such as 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate; benzyl (meth) acrylate, benzyl (meth) Aromatic (meth) acrylates such as acrylate, phenoxyethyl (meth) acrylate, phenoxypolyethylene glycol acrylate, phenyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate; (meth) acrylamide, dimethyl (meth) Acrylamide, acryloylmorpholine, dimethylaminopropyl (meth) acrylamide, isopropyl (meth) acrylamide, diethyl (meth) acrylamide, hydroxyethyl (meth) A (meth) acryl monomer having a nitrogen atom such as acrylamide or diacetone (meth) acrylamide can be used. These (meth) acrylic monomers may be used alone or in combination of two or more.
なお、前記(メタ)アクリル単量体(Y)として、優れた耐湿熱白化性を付与するため、前記窒素原子を有する(メタ)アクリル単量体を用いる場合がある。その場合、耐湿熱黄変性が低下することがあるため、添加量は少ない方が好ましく、前記(メタ)アクリル単量体(Y)全量に対して40質量%以下であることが好ましく、35質量%以下であることがより好ましい。本発明においては、前記ポリエチレングリコール(a1)を用いることで粘着剤被膜の親水性を向上できるため、少ない添加量で耐湿熱白化性を発現することができる。 In addition, as the (meth) acrylic monomer (Y), the (meth) acrylic monomer having a nitrogen atom may be used in order to impart excellent moisture and heat whitening resistance. In that case, since heat-and-humidity yellowing resistance may decrease, the addition amount is preferably small, and is preferably 40% by mass or less based on the total amount of the (meth) acrylic monomer (Y), and 35% by mass. % Or less is more preferable. In the present invention, since the hydrophilicity of the pressure-sensitive adhesive film can be improved by using the polyethylene glycol (a1), moisture and heat whitening resistance can be expressed with a small addition amount.
前記(メタ)アクリル単量体(Y)の使用量としては、粘着力の点から、前記ウレタン(メタ)アクリレート(X)100質量部に対して、30〜200質量部の範囲で用いることが好ましく、50〜150質量部の範囲がより好ましく、70〜130質量部の範囲が特に好ましい。 As the usage-amount of the said (meth) acryl monomer (Y), it is used in the range of 30-200 mass parts with respect to 100 mass parts of said urethane (meth) acrylate (X) from the point of adhesive force. Preferably, the range of 50 to 150 parts by mass is more preferable, and the range of 70 to 130 parts by mass is particularly preferable.
前記光重合開始剤(Z)は、光照射や加熱等によってラジカルを発生し、前記ウレタン(メタ)アクリレート(X)や前記(メタ)アクリル単量体(Y)のラジカル重合を開始させるものである。 The photopolymerization initiator (Z) generates radicals by light irradiation or heating, and initiates radical polymerization of the urethane (meth) acrylate (X) or the (meth) acrylic monomer (Y). is there.
前記光重合開始剤(Z)としては、例えば、4−フェノキシジクロロアセトフェノン、ジエトキシアセトフェノン、2−ヒドロキシ−2−メチル−1−フェニルプロパン−1−オン、1−(4−イソプロピルフェニル)−2−ヒドロキシ−2−メチルプロパン−1−オン、1−ヒドロキシシクロヘキシルフェニルケトン、4−(2−ヒドロキシエトキシ)−フェニル(2−ヒドロキシ−2−プロピル)ケトン、2−メチル−[4−(メチルチオ)フェニル]−2−モルフォリノ−1−プロパノン、2,2−ジメトキシ−2−フェニルアセトフェノン等のアセトフェノン化合物;ベンゾイン、ベンゾインメチルエーテル、ベンゾインイソエチルエーテル、ベンゾインイソプロピルエーテル、ベンゾインイソブチルエーテル等のベンゾイン化合物;ベンゾフェノン、ベンゾイル安息香酸、ベンゾイル安息香酸メチル、4−フェニルベンゾフェノン、ヒドロキシベンゾフェノン、4−ベンゾイル−4’−メチルジフェニルサルファイド、3,3’−ジメチル−4−メトキシベンゾフェノン等のベンゾフェノン化合物;チオキサントン、2−クロロチオキサントン、2,4−ジクロロチオキサントン、2−メチルチオキサントン、2,4−ジメチルチオキサントン、2,4−ジエチルチオキサントン、イソプロピルチオキサントン、2,4−ジイソプロピルチオキサントン等のチオキサントン化合物;4,4’−ジメチルアミノチオキサントン(別名=ミネラーズケトン)、4,4’−ジエチルアミノベンゾフェノン、α−アシロキシムエステル、ベンジル、メチルベンゾイルホルメート(「バイアキュア55」)、2−エチルアンスラキノン等のアンスラキノン化合物;2,4,6−トリメチルベンゾイルジフェニルホスフィンオキサイド(「ルシリンTPO」)、ビス(2,4,6−トリメチルベンゾイル)−フェニルホスフィンオキサイド(「IRGACURE819」)等のアシルフォスフィンオキサイド化合物;3,3’,4,4’−テトラ(tert−ブチルオパーオキシカルボニル)ベンゾフェノン[日本油脂株式会社製の「BTTB」]、アクリル化ベンゾフェノン等を用いることができる。 Examples of the photopolymerization initiator (Z) include 4-phenoxydichloroacetophenone, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and 1- (4-isopropylphenyl) -2. -Hydroxy-2-methylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 4- (2-hydroxyethoxy) -phenyl (2-hydroxy-2-propyl) ketone, 2-methyl- [4- (methylthio) Acetophenone compounds such as phenyl] -2-morpholino-1-propanone and 2,2-dimethoxy-2-phenylacetophenone; benzoin compounds such as benzoin, benzoin methyl ether, benzoin isoethyl ether, benzoin isopropyl ether and benzoin isobutyl ether Benzophenone compounds such as benzophenone, benzoylbenzoic acid, methyl benzoylbenzoate, 4-phenylbenzophenone, hydroxybenzophenone, 4-benzoyl-4′-methyldiphenyl sulfide, 3,3′-dimethyl-4-methoxybenzophenone; thioxanthone, 2- Thioxanthone compounds such as chlorothioxanthone, 2,4-dichlorothioxanthone, 2-methylthioxanthone, 2,4-dimethylthioxanthone, 2,4-diethylthioxanthone, isopropylthioxanthone, 2,4-diisopropylthioxanthone; 4,4′-dimethylamino Thioxanthone (also known as Minerals ketone), 4,4′-diethylaminobenzophenone, α-acyloxime ester, benzyl, methylbenzoylformate (“ Viacure 55 "), anthraquinone compounds such as 2-ethylanthraquinone; 2,4,6-trimethylbenzoyldiphenylphosphine oxide (" Lucirin TPO "), bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide ( Acylphosphine oxide compounds such as “IRGACURE819”); 3,3 ′, 4,4′-tetra (tert-butylperoxycarbonyl) benzophenone [“BTTB” manufactured by NOF Corporation], acrylated benzophenone, and the like are used. be able to.
前記光重合開始剤(Z)としては、粘着力、保持力、耐湿熱黄変性及び硬化性をより一層向上できる点から、2−ヒドロキシ−2−メチル−1−フェニルプロパン−1−オン、1−ヒドロキシシクロヘキシルフェニルケトン、2,4,6−トリメチルベンゾイルジフェニルホスフィンオキサイド、ビス(2,4,6−トリメチルベンゾイル)−フェニルホスフィンオキサイドを用いることが好ましい。 As the photopolymerization initiator (Z), 2-hydroxy-2-methyl-1-phenylpropan-1-one, 1 can be further improved in terms of adhesion, holding power, wet heat yellowing resistance and curability. It is preferable to use -hydroxycyclohexyl phenyl ketone, 2,4,6-trimethylbenzoyl diphenylphosphine oxide, or bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide.
前記光重合開始剤(Z)の使用量は、前記ウレタン(メタ)アクリレート(X)100質量部に対して、0.1〜20質量部の範囲で用いることが好ましく、0.5〜15質量部の範囲がより好ましく、1〜5質量部の範囲が特に好ましい。 The photopolymerization initiator (Z) is preferably used in an amount of 0.1 to 20 parts by mass, and 0.5 to 15 parts by mass with respect to 100 parts by mass of the urethane (meth) acrylate (X). The range of parts is more preferable, and the range of 1 to 5 parts by mass is particularly preferable.
本発明の紫外線硬化型粘着剤組成物は、前記ウレタン(メタ)アクリレート(X)、前記(メタ)アクリル単量体(Y)及び前記光重合開始剤(Z)を必須成分として含有するが、必要に応じてその他の添加剤を含有してもよい。 The ultraviolet curable adhesive composition of the present invention contains the urethane (meth) acrylate (X), the (meth) acrylic monomer (Y) and the photopolymerization initiator (Z) as essential components. You may contain another additive as needed.
前記その他の添加剤としては、例えば、シランカップリング剤、酸化防止剤、光安定剤、溶媒、防錆剤、チキソ付与剤、増感剤、重合禁止剤、レベリング剤、粘着付与剤、帯電防止剤、難燃剤等を用いることができる。これらの中でも、耐湿熱後の粘着物性をより一層向上できる点から、シランカップリング剤を含有することが好ましい。また、耐湿熱黄変性等をより一層向上できる点から、酸化防止剤、光安定剤を含有することが好ましい。 Examples of the other additives include silane coupling agents, antioxidants, light stabilizers, solvents, rust inhibitors, thixotropic agents, sensitizers, polymerization inhibitors, leveling agents, tackifiers, and antistatic agents. An agent, a flame retardant, etc. can be used. Among these, it is preferable to contain a silane coupling agent from the point which can improve the adhesive physical property after heat-and-moisture resistance further. Moreover, it is preferable to contain antioxidant and a light stabilizer from the point which can improve a heat-and-humidity yellowing resistance etc. further.
前記シランカップリング剤としては、例えば、例えば、3−グリシドキシプロピルトリメトキシシラン、3−グリシドキシプロピルトリエトキシシラン、3−グリシドキシプロピルメチルジエトキシシラン、3−グリシドキシプロピルメチルジメトキシシラン等のエポキシ基を有するシランカップリング剤;2−(3,4−エポキシシクロヘキシル)エチルトリエトキシシラン、2−(3,4−エポキシシクロヘキシル)エチルトリメトキシシラン、2−(3,4−エポキシシクロヘキシル)エチルメチルジメトキシシラン、2−(3,4−エポキシシクロヘキシル)エチルメチルジエトキシシラン、2−(3,4−エポキシシクロヘキシル)プロピルトリメトキシシラン、2−(3,4−エポキシシクロヘキシル)プロピルメチルジメトキシシラン、2−(3,4−エポキシシクロヘキシル)プロピルトリエトキシシラン、2−(3,4−エポキシシクロヘキシル)プロピルメチルジエトキシシラン等の脂環エポキシ基を有するシランカップリング剤;ビニルトリクロルシラン、ビニルトリメトキシシラン、ビニルトリエトキシシラン、p−スチリルトリメトキシシラン、3−メタクリロキシプロピルメチルジメトキシシラン、3−メタクリロキシプロピルトリメトキシシラン、3−メタクリロキシプロピルメチルジエトキシシラン、3−メタクリロキシプロピルトリエトキシシラン、3−アクリロキシプロピルトリメトキシシラン、3−メルカプトプロピルメチルジメトキシシラン、3−メルカプトプロピルトリメトキシシラン、シリコーンアルコキシオリゴマーなどを用いることができる。これらのシランカップリング剤は単独で用いても2種以上を併用してもよい。これらの中でも、耐湿熱後の粘着力等をより一層向上できる点から、エポキシ基を有するシランカップリング剤、脂環エポキシ基を有するシランカップリング剤を用いることが好ましく、2−(3,4−エポキシシクロヘキシル)エチルトリエトキシシラン、2−(3,4−エポキシシクロヘキシル)エチルトリメトキシシラン、3−グリシドキシプロピルトリメトキシシラン及び3−グリシドキシプロピルトリエトキシシランからなる群より選ばれる1種以上を用いることがより好ましい。 Examples of the silane coupling agent include 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, and 3-glycidoxypropylmethyl. Silane coupling agents having an epoxy group such as dimethoxysilane; 2- (3,4-epoxycyclohexyl) ethyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3,4- Epoxycyclohexyl) ethylmethyldimethoxysilane, 2- (3,4-epoxycyclohexyl) ethylmethyldiethoxysilane, 2- (3,4-epoxycyclohexyl) propyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) propyl Methyl dimethyl Silane coupling agents having an alicyclic epoxy group such as silane, 2- (3,4-epoxycyclohexyl) propyltriethoxysilane, 2- (3,4-epoxycyclohexyl) propylmethyldiethoxysilane; vinyltrichlorosilane, vinyl Trimethoxysilane, vinyltriethoxysilane, p-styryltrimethoxysilane, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropylmethyldiethoxysilane, 3-methacryloxypropyltri Use ethoxysilane, 3-acryloxypropyltrimethoxysilane, 3-mercaptopropylmethyldimethoxysilane, 3-mercaptopropyltrimethoxysilane, silicone alkoxy oligomer, etc. Door can be. These silane coupling agents may be used alone or in combination of two or more. Among these, it is preferable to use a silane coupling agent having an epoxy group or a silane coupling agent having an alicyclic epoxy group from the viewpoint that the adhesive strength after heat and moisture resistance can be further improved. 1 selected from the group consisting of -epoxycyclohexyl) ethyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane and 3-glycidoxypropyltriethoxysilane More preferably, seeds or more are used.
前記シランカップリング剤の使用量としては、耐湿熱後の粘着力をより一層向上できる点から、前記ウレタン(メタ)アクリレート(X)100質量部に対して、0.01〜10質量部の範囲で用いることが好ましく、0.05〜5質量部の範囲がより好ましく、0.05〜1質量部の範囲が更に好ましい。 The amount of the silane coupling agent used is in the range of 0.01 to 10 parts by mass with respect to 100 parts by mass of the urethane (meth) acrylate (X) because the adhesive force after heat and moisture resistance can be further improved. The range of 0.05-5 mass parts is more preferable, and the range of 0.05-1 mass parts is still more preferable.
前記酸化防止剤としては、熱劣化で発生するラジカルの捕捉するヒンダードフェノール化合物(一次酸化防止剤)、及び熱劣化で発生する過酸化物を分解するリン化合物、イオウ化合物(二次酸化防止剤)等を用いることができる。 Examples of the antioxidant include hindered phenol compounds (primary antioxidants) that capture radicals generated by thermal degradation, phosphorus compounds that decompose peroxides generated by thermal degradation, and sulfur compounds (secondary antioxidants). ) Etc. can be used.
前記ヒンダードフェノール化合物としては、例えば、トリエチレングリコール−ビス−[3−(3−t−ブチル−5−メチル−4ヒドロキシフェニル)プロピオネート]、ペンタエリスリトールテトラキス[3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート、オクタデシル[3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート、チオジエチレンビス[3−(3,5−ジ−tert−ブチル−4−ヒドロキシフェニル)プロピオネート]、ベンゼンプロパン酸−3,5−ビス(1,1−ジメチルエチル)−4−ヒドロキシ−C7−C9側鎖アルキルエステル、4,6−ビス(ドデシルチオメチル)−o−クレゾール、N−フェニルベンゼンアミンと2,4,4−トリメチルペンテンとの反応生成物、2−t−ブチル−6−(3−t−ブチル−2−ヒドロキシ−5−メチルベンジル)−4−メチルフェニルアクリレート、3,9−ビス[2−〔3−(t−ブチル−4−ヒドロキシ−5−メチルフェニル)プロピオニルオキシ〕−1,1−ジメチルエチル]2,4,8,10−テトラオキサスピロ〔5・5〕ウンデカン、2,6−ジ−tert−ブチル−4−メチルフェノール、2,2’−メチレンビス(4−メチル−6−tert−ブチルフェノール)、2,5−ジ−tert−アミルハイドロキノン等を用いることができる。Examples of the hindered phenol compound include triethylene glycol-bis- [3- (3-tert-butyl-5-methyl-4hydroxyphenyl) propionate], pentaerythritol tetrakis [3- (3,5-di-). tert-butyl-4-hydroxyphenyl) propionate, octadecyl [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, thiodiethylenebis [3- (3,5-di-tert-butyl- 4-hydroxyphenyl) propionate], benzenepropanoic acid-3,5-bis (1,1-dimethylethyl) -4-hydroxy-C 7 -C 9 side chain alkyl ester, 4,6-bis (dodecylthiomethyl) -O-cresol, N-phenylbenzenamine and 2,4,4-trimethylpente Product of 2-t-butyl-6- (3-t-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl acrylate, 3,9-bis [2- [3- (t -Butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1-dimethylethyl] 2,4,8,10-tetraoxaspiro [5 · 5] undecane, 2,6-di-tert-butyl -4-methylphenol, 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 2,5-di-tert-amylhydroquinone, and the like can be used.
前記リン化合物としては、例えば、トリフェニルホスフィン、ビス(2,4−ジ−tert−ブチル−6−メチルフェニル)=エチル=ホスフィット、トリフェニルホスファイト、トリスノニルフェニルホスファイト、トリス(2,4−ジブチルフェニル)ホスファイト、トリス(2,4−ジブチル−5−メチルフェニル)ホスファイト、トリス〔2−第三ブチル−4−(3−ブチル−4−ヒドロキシ−5−メチルフェニルチオ)−5−メチルフェニル〕ホスファイト、トリス(2,4−ジ−tert−ブチルフェニル)ホスファイト、トリデシルホスファイト、オクチルジフェニルホスファイト、ジ(デシル)モノフェニルホスファイト、ジ(トリデシル)ペンタエリスリトールジホスファイト、ジ(ノニルフェニル)ペンタエリスリトールジホスファイト、ビス(2,4−ジブチルフェニル)ペンタエリスリトールジホスファイト、ビス(2,6−ジブチル−4−メチルフェニル)ペンタエリスリトールジホスファイト、ビス(2,4,6−トリブチルフェニル)ペンタエリスリトールジホスファイト、ビス(2,4−ジクミルフェニル)ペンタエリスリトールジホスファイト、テトラ(トリデシル)イソプロピリデンジフェノールジホスファイト、テトラ(トリデシル)−4,4’−n−ブチリデンビス(2−ブチル−5−メチルフェノール)ジホスファイト、ヘキサ(トリデシル)−1,1,3−トリス(2−メチル−4−ヒドロキシ−5−ブチルフェニル)ブタントリホスファイト、テトラキス(2,4−ジブチルフェニル)ビフェニレンジホスホナイト、9,10−ジハイドロ−9−オキサ−10−ホスファフェナンスレン−10−オキサイド、2,2’−メチレンビス(4,6−ブチルフェニル)−2−エチルヘキシルホスファイト、2,2’−メチレンビス(4,6−ブチルフェニル)−オクタデシルホスファイト、2,2’−エチリデンビス(4,6−ジブチルフェニル)フルオロホスファイト、トリス(2−〔(2,4,8,10−テトラキスブチルジベンゾ〔d,f〕〔1,3,2〕ジオキサホスフェピン−6−イル)オキシ〕エチル)アミン、2−エチル−2−ブチルプロピレングリコールと2,4,6−トリブチルフェノールのホスファイト等を用いることができる。 Examples of the phosphorus compound include triphenylphosphine, bis (2,4-di-tert-butyl-6-methylphenyl) = ethyl phosphite, triphenyl phosphite, trisnonylphenyl phosphite, tris (2, 4-dibutylphenyl) phosphite, tris (2,4-dibutyl-5-methylphenyl) phosphite, tris [2-tert-butyl-4- (3-butyl-4-hydroxy-5-methylphenylthio)- 5-methylphenyl] phosphite, tris (2,4-di-tert-butylphenyl) phosphite, tridecyl phosphite, octyl diphenyl phosphite, di (decyl) monophenyl phosphite, di (tridecyl) pentaerythritol di Phosphite, di (nonylphenyl) pentaerythritol Diphosphite, bis (2,4-dibutylphenyl) pentaerythritol diphosphite, bis (2,6-dibutyl-4-methylphenyl) pentaerythritol diphosphite, bis (2,4,6-tributylphenyl) pentaerythritol diphosphite Phosphite, bis (2,4-dicumylphenyl) pentaerythritol diphosphite, tetra (tridecyl) isopropylidene diphenol diphosphite, tetra (tridecyl) -4,4′-n-butylidenebis (2-butyl-5) -Methylphenol) diphosphite, hexa (tridecyl) -1,1,3-tris (2-methyl-4-hydroxy-5-butylphenyl) butane triphosphite, tetrakis (2,4-dibutylphenyl) biphenylene diphosphonite, 9,10-di Idro-9-oxa-10-phosphaphenanthrene-10-oxide, 2,2′-methylenebis (4,6-butylphenyl) -2-ethylhexyl phosphite, 2,2′-methylenebis (4,6- Butylphenyl) -octadecylphosphite, 2,2′-ethylidenebis (4,6-dibutylphenyl) fluorophosphite, tris (2-[(2,4,8,10-tetrakisbutyldibenzo [d, f] [ 1,3,2] dioxaphosphin-6-yl) oxy] ethyl) amine, 2-ethyl-2-butylpropylene glycol and 2,4,6-tributylphenol phosphite, and the like can be used.
前記イオウ化合物としては、例えば、ジドデシル−3,3’−チオプロピオネート、ジラウリル−3,3’−チオジプロピオネート、ラウジリルチオジチオネート、ジトリデシル−3,3’−チオジプロピオネート、ジミリスチル−3,3’−チオジプロピオネート、ジステアリル−3,3’−チオジプロピオネート、テトラキス−メチレン−3−ラウリルチオプロピオネートメタン、ジステアリル−3,3’−メチル−3,3’−チオジプロピオネート、ラウリルステアリル−3,3’−チオジプロピオネート、ビス[2−メチル−4−(3−n−アルキルチオプロピオニルオキシ)−5−t−ブチルフェニル]スルフィド、β−ラウリルチオプロピオネート、2−メルカプトベンゾイミダゾール、2−メルカプト−5−メチルベンゾイミダゾール、ジオクタデシル−3,3’−チオジプロチオネート等を用いることができる。 Examples of the sulfur compound include didodecyl-3,3′-thiopropionate, dilauryl-3,3′-thiodipropionate, laurylthiothiothionate, ditridecyl-3,3′-thiodipropionate, Dimyristyl-3,3′-thiodipropionate, distearyl-3,3′-thiodipropionate, tetrakis-methylene-3-laurylthiopropionate methane, distearyl-3,3′-methyl-3, 3′-thiodipropionate, lauryl stearyl-3,3′-thiodipropionate, bis [2-methyl-4- (3-n-alkylthiopropionyloxy) -5-tert-butylphenyl] sulfide, β- Lauryl thiopropionate, 2-mercaptobenzimidazole, 2-mercapto-5-methylbenzimi Tetrazole, can be used dioctadecyl 3,3'-thio dipropionate isethionate, and the like.
これらの中でも、粘着力及び耐湿熱黄変性をより一層向上できる点から、リン化合物を用いることが好ましく、トリフェニルホスフィン、ビス(2,4−ジ−tert−ブチル−6−メチルフェニル)=エチル=ホスフィット及びトリス(2,4−ジ−tert−ブチルフェニル)ホスファイトからなる群より選ばれる1種以上の酸化防止剤を用いることがより好ましく、トリフェニルホスフィン、ビス(2,4−ジ−tert−ブチル−6−メチルフェニル)=エチル=ホスフィットを用いることが特に好ましい。 Among these, it is preferable to use a phosphorus compound from the viewpoint of further improving adhesive strength and heat and heat yellowing resistance, and triphenylphosphine, bis (2,4-di-tert-butyl-6-methylphenyl) = ethyl. It is more preferable to use one or more antioxidants selected from the group consisting of phosphite and tris (2,4-di-tert-butylphenyl) phosphite, and triphenylphosphine and bis (2,4-di It is particularly preferred to use -tert-butyl-6-methylphenyl) = ethyl = phosphite.
前記酸化防止剤の使用量としては、耐湿熱黄変性をより一層向上できる点から、前記ウレタン(メタ)アクリレート(X)100質量部に対して、0.01〜10質量部の範囲であることが好ましい。 As the usage-amount of the said antioxidant, it is the range of 0.01-10 mass parts with respect to 100 mass parts of said urethane (meth) acrylate (X) from the point which can further improve wet heat yellowing resistance. Is preferred.
前記光安定剤は、光劣化で発生するラジカルを捕捉するものであり、例えば、チオール化合物、チオエーテル化合物、ヒンダードアミン化合物等のラジカル捕捉剤、及びベンゾフェノン化合物、ベンゾエート化合物等の紫外線吸収剤などを用いることができる。これらの中でも、耐湿熱黄変性をより一層向上できる点から、ヒンダードアミン化合物を用いることが好ましい。 The light stabilizer captures radicals generated by photodegradation. For example, a radical scavenger such as a thiol compound, a thioether compound, or a hindered amine compound, and an ultraviolet absorber such as a benzophenone compound or a benzoate compound are used. Can do. Among these, it is preferable to use a hindered amine compound from the viewpoint that the heat and heat yellowing resistance can be further improved.
前記ヒンダードアミン化合物としては、例えば、シクロヘキサンと過酸化N−ブチル2,2,6,6−テトラメチル−4−ピペリジンアミン−2,4,6−トリクロロ1,3,5−トリアジンとの反応生成物と2−アミノエタノールとの反応生成物、デカン二酸ビス(2,2,6,6−テトラメチル−1−(オクチルオキシ)−4−ピペリジニル)エステル、1,1−ジメチルエチルヒドロペルオキシドとオクタンの反応生成物等のアミノエーテル基を有するヒンダードアミン化合物;N−アセチル−3−ドデシル−1−(2,2,6,6−テトラメチル−4−ピペリジニル)ピロリジン−2,5−ジオン等のN−アセチル系ヒンダードアミン化合物;ビス(1,2,2,6,6−ペンタメチル−4−ピペリジル)=デカンジオアート、ビス(1,2,2,6,6,−ペンタメチル−4−ピペリジル){[3,5−ビス(1,1−ジメチルエチル)−4−ヒドロキシフェニル]メチル}ブチルマロネート、コハク酸ジメチル・1−(2−ヒドロキシエチル)−4−ヒドロキシ−2,2,6,6−テトラメチルピペリジン重縮合物、プロバンジオイックアシッド[{4−メトキシフェニル}メチレン]−ビス(1,2,2,6,6−ペンタメチル−4−ピペリジル)エステルのN−アルキルヒンダードアミン化合物などを用いることができる。 Examples of the hindered amine compound include a reaction product of cyclohexane and N-butyl peroxide 2,2,6,6-tetramethyl-4-piperidineamine-2,4,6-trichloro 1,3,5-triazine. Product of 2-aminoethanol with decanedioic acid bis (2,2,6,6-tetramethyl-1- (octyloxy) -4-piperidinyl) ester, 1,1-dimethylethyl hydroperoxide and octane A hindered amine compound having an amino ether group such as a reaction product of N; N-acetyl-3-dodecyl-1- (2,2,6,6-tetramethyl-4-piperidinyl) pyrrolidine-2,5-dione and the like N -Acetyl hindered amine compound; bis (1,2,2,6,6-pentamethyl-4-piperidyl) = decanedioate, bis 1,2,2,6,6, -pentamethyl-4-piperidyl) {[3,5-bis (1,1-dimethylethyl) -4-hydroxyphenyl] methyl} butyl malonate, dimethyl succinate (2-Hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine polycondensate, Provandioic acid [{4-methoxyphenyl} methylene] -bis (1,2,2,6, N-alkyl hindered amine compounds of 6-pentamethyl-4-piperidyl) ester and the like can be used.
前記光安定剤の使用量としては、耐湿熱黄変性をより一層向上できる点から、前記ウレタン(メタ)アクリレート(X)100質量部に対して、0.01〜10質量部の範囲であることが好ましい。 As the usage-amount of the said light stabilizer, it is the range of 0.01-10 mass parts with respect to 100 mass parts of said urethane (meth) acrylate (X) from the point which can improve wet heat yellowing resistance further. Is preferred.
本発明の紫外線硬化型粘着剤組成物の粘度としては、良好な塗工性、及び塗工時の粘着剤溶液の取り扱いの良さの点から、500〜20,000mPa・sの範囲であることが好ましく、1,000〜15,000mPa・sの範囲がより好ましい。なお、前記粘度は、25℃でB型粘度計にて測定した値を示す。 The viscosity of the ultraviolet curable pressure-sensitive adhesive composition of the present invention is in the range of 500 to 20,000 mPa · s from the viewpoint of good coating properties and good handling of the pressure-sensitive adhesive solution during coating. The range of 1,000 to 15,000 mPa · s is more preferable. In addition, the said viscosity shows the value measured with the B-type viscometer at 25 degreeC.
本発明の紫外線硬化型粘着剤組成物は、紫外線等のエネルギー線の照射によって硬化を進行させることができる。 The ultraviolet curable pressure-sensitive adhesive composition of the present invention can be cured by irradiation with energy rays such as ultraviolet rays.
本発明の紫外線硬化型粘着剤組成物を硬化させる方法としては、例えば、キセノンランプ、キセノン−水銀ランプ、メタルハライドランプ、高圧水銀ランプ、低圧水銀ランプ等の公知の紫外線光照射装置を用いて所定の紫外線を照射することによって硬化させることができる。 As a method for curing the ultraviolet curable pressure-sensitive adhesive composition of the present invention, for example, a known ultraviolet light irradiation device such as a xenon lamp, a xenon-mercury lamp, a metal halide lamp, a high-pressure mercury lamp, or a low-pressure mercury lamp It can be cured by irradiating with ultraviolet rays.
前記紫外線の照射は、好ましくは0.05〜5J/cm2、より好ましくは0.1〜3J/cm2、特に好ましくは0.3〜1.5J/cm2の範囲であることがよい。なお、紫外線照射量は、UVチェッカーUVR−N1(GSユアサ株式会社製)を用いて300〜390nmの波長域において測定した値を基準とした。The ultraviolet irradiation is preferably in the range of 0.05 to 5 J / cm 2 , more preferably 0.1 to 3 J / cm 2 , and particularly preferably 0.3 to 1.5 J / cm 2 . In addition, the ultraviolet irradiation amount was based on a value measured in a wavelength region of 300 to 390 nm using a UV checker UVR-N1 (manufactured by GS Yuasa Co., Ltd.).
本発明の紫外線硬化型粘着剤組成物を塗布し粘着剤層を形成することができる基材としては、プラスチック基材、フレキシブルプリント基材、ガラス基材及びこれらの基材にITOを蒸着した基材等を用いることができる。 Examples of the substrate on which the ultraviolet curable pressure-sensitive adhesive composition of the present invention can be applied to form a pressure-sensitive adhesive layer include a plastic substrate, a flexible print substrate, a glass substrate, and a substrate obtained by depositing ITO on these substrates. A material etc. can be used.
前記プラスチック基材としては、一般に使用されるアクリル樹脂等からなる基材やPC(ポリカーボネート)、PBT(ポリブチレンテレフタレート)、PPS(ポリフェニレンサルファイド)、変性PPE(ポリフェニレンエーテル)、PET(ポリエチレンテレフタレート)、COP(シクロオレフィンポリマー)、TAC(トリアセチルセルロース)や反射防止フィルム、防汚フィルム、タッチパネルを構成する透明導電膜のフィルム等を用いることができる。 Examples of the plastic substrate include a commonly used acrylic resin and the like, PC (polycarbonate), PBT (polybutylene terephthalate), PPS (polyphenylene sulfide), modified PPE (polyphenylene ether), PET (polyethylene terephthalate), COP (cycloolefin polymer), TAC (triacetyl cellulose), an antireflection film, an antifouling film, a transparent conductive film constituting a touch panel, and the like can be used.
以下、実施例を用いて、本発明をより詳細に説明する。 Hereinafter, the present invention will be described in more detail with reference to examples.
[合成例1]
<ウレタンアクリレート(X−1)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、ポリテトラメチレングリコール(数平均分子量;1,000、以下「PTMG1000」と略記する。)を410質量部、ポリエチレングリコール(数平均分子量;400、以下「PEG−1」と略記する。)を27.5質量部、2−ヒドロキシエチルアクリレート(以下、「HEA」と略記する。)6.1質量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、イソホロンジイソシアネート(以下、「IPDI」と略記する。)105質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−1)を得た。得られたウレタンアクリレート(X−1)は、アクリロイル基の当量が10,441(小数点以下四捨五入。2−ヒドロキシエチルアクリレートの分子量は116.1とした。以下、同じ。)、重量平均分子量が30,000であった。[Synthesis Example 1]
<Synthesis of urethane acrylate (X-1)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, 410 parts by mass of polytetramethylene glycol (number average molecular weight; 1,000, hereinafter abbreviated as “PTMG1000”), polyethylene glycol (several Average molecular weight: 400, hereinafter abbreviated as “PEG-1”) 27.5 parts by mass, 2-hydroxyethyl acrylate (hereinafter abbreviated as “HEA”) 6.1 parts by mass, 2,6-di -2 parts by mass of tertiary butyl-cresol and 0.3 parts by mass of p-methoxyphenol were added. After raising the temperature in the reaction vessel to 40 ° C., 105 parts by mass of isophorone diisocyanate (hereinafter abbreviated as “IPDI”) was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-1). The obtained urethane acrylate (X-1) has an acryloyl group equivalent of 10,441 (rounded off after the decimal point. The molecular weight of 2-hydroxyethyl acrylate is 116.1. The same applies hereinafter), and the weight average molecular weight is 30. 000.
[合成例2]
<ウレタンアクリレート(X−2)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、ポリカーボネートポリオール(「デュラノールT−5651」旭化成ケミカルズ株式会社製、数平均分子量;1000)390質量部、ポリエチレングリコール(数平均分子量;600、以下「PEG−2」と略記する。)を43.4質量部、HEA9質量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、IPDIを102質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−2)を得た。得られたウレタンアクリレート(X−2)は、アクリロイル基の当量が7,023、重量平均分子量が19,000であった。[Synthesis Example 2]
<Synthesis of urethane acrylate (X-2)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, 390 parts by mass of polycarbonate polyol (“Duranol T-5651”, Asahi Kasei Chemicals Corporation, number average molecular weight; 1000), polyethylene glycol (number average molecular weight 600, hereinafter abbreviated as “PEG-2”) 43.4 parts by mass, 9 parts by mass of HEA, 2 parts by mass of 2,6-ditertiarybutyl-cresol, 0.3 parts by mass of p-methoxyphenol Was added. After raising the temperature in the reaction vessel to 40 ° C., 102 parts by mass of IPDI was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-2). The obtained urethane acrylate (X-2) had an acryloyl group equivalent of 7,023 and a weight average molecular weight of 19,000.
[合成例3]
<ウレタンアクリレート(X−3)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、PTMG1000を351質量部、PEG−1を51.4質量部、HEAを5.7質量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、IPDIを104質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−3)を得た。得られたウレタンアクリレート(X−3)は、アクリロイル基の当量が10,431、重量平均分子量が21,000であった。[Synthesis Example 3]
<Synthesis of urethane acrylate (X-3)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, 351 parts by mass of PTMG1000, 51.4 parts by mass of PEG-1, 5.7 parts by mass of HEA, 2,6-di-tarsha 2 parts by weight of Libutyl-cresol and 0.3 parts by weight of p-methoxyphenol were added. After raising the temperature in the reaction vessel to 40 ° C., 104 parts by mass of IPDI was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-3). The obtained urethane acrylate (X-3) had an acryloyl group equivalent of 10,431 and a weight average molecular weight of 21,000.
[合成例4]
<ウレタンアクリレート(X−4)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、ポリプロピレングリコール(数平均分子量;3,000、以下、「PPG3000」と略記する。)を180質量部、PTMG1000を143質量部、PEG−1を109質量部、HEAを6量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、IPDIを105質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−4)を得た。得られたウレタンアクリレート(X−4)は、アクリロイル基の当量が10,507、重量平均分子量が26,000であった。[Synthesis Example 4]
<Synthesis of urethane acrylate (X-4)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, 180 parts by mass of polypropylene glycol (number average molecular weight; 3,000, hereinafter abbreviated as “PPG3000”) and 143 parts by mass of PTMG1000. 109 parts by weight of PEG-1, 6 parts by weight of HEA, 2 parts by weight of 2,6-ditertiarybutyl-cresol, and 0.3 parts by weight of p-methoxyphenol were added. After raising the temperature in the reaction vessel to 40 ° C., 105 parts by mass of IPDI was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-4). The obtained urethane acrylate (X-4) had an acryloyl group equivalent of 10,507 and a weight average molecular weight of 26,000.
[合成例5]
<ウレタンアクリレート(X−5)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、デュラノールT−5652を442質量部、ポリエチレングリコール(「Ymer N120」Perstorp社製、数平均分子量;1,000)を246質量部、HEAを9.5質量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、IPDIを102質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−5)を得た。得られたウレタンアクリレート(X−5)は、アクリロイル基の当量が9,771、重量平均分子量が20,000であった。[Synthesis Example 5]
<Synthesis of urethane acrylate (X-5)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, 442 parts by mass of Duranol T-5562 and 246 parts by mass of polyethylene glycol (“Ymer N120” manufactured by Perstorp, number average molecular weight; 1,000) Part, HEA 9.5 parts by mass, 2,6-di-tert-butyl-cresol 2 parts by mass, p-methoxyphenol 0.3 parts by mass. After raising the temperature in the reaction vessel to 40 ° C., 102 parts by mass of IPDI was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-5). The obtained urethane acrylate (X-5) had an acryloyl group equivalent of 9,771 and a weight average molecular weight of 20,000.
[合成例6]
<ウレタンアクリレート(X−6)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、デュラノールT−5651を467質量部、HEAを9.6質量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、IPDIを101質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−6)を得た。得られたウレタンアクリレート(X−6)は、アクリロイル基の当量が6,985、重量平均分子量が19,000であった。[Synthesis Example 6]
<Synthesis of urethane acrylate (X-6)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, 467 parts by weight of Duranol T-5651, 9.6 parts by weight of HEA, and 2 parts by weight of 2,6-ditertiarybutyl-cresol Part, 0.3 parts by mass of p-methoxyphenol was added. After raising the temperature in the reaction vessel to 40 ° C., 101 parts by mass of IPDI was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-6). The obtained urethane acrylate (X-6) had an acryloyl group equivalent of 6,985 and a weight average molecular weight of 19,000.
[合成例7]
<ウレタンアクリレート(X−7)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、PTMG1000を460質量部、HEAを6.5質量部、2,6−ジ−ターシャリーブチル−クレゾールを2質量部、p−メトキシフェノール0.3質量部を添加した。反応容器内温度が40℃になるまで昇温した後、IPDIを105質量部添加した。そこで、ジオクチルスズジネオデカネート0.1質量部添加し、1時間かけて80℃まで昇温した。その後、80℃で12時間ホールドし、全てのイソシアネート基が消失していることを確認後、冷却しウレタンアクリレート(X−7)を得た。得られたウレタンアクリレート(X−7)は、アクリロイル基の当量が10,208、重量平均分子量が22,000であった。[Synthesis Example 7]
<Synthesis of urethane acrylate (X-7)>
In a reaction vessel equipped with a stirrer, a reflux condenser, a nitrogen inlet tube, and a thermometer, PTMG1000 is 460 parts by mass, HEA is 6.5 parts by mass, 2,6-ditertiarybutyl-cresol is 2 parts by mass, p -0.3 part by weight of methoxyphenol was added. After raising the temperature in the reaction vessel to 40 ° C., 105 parts by mass of IPDI was added. Therefore, 0.1 part by mass of dioctyltin dineodecanate was added, and the temperature was raised to 80 ° C. over 1 hour. Then, after hold | maintaining at 80 degreeC for 12 hours and confirming that all the isocyanate groups have lose | disappeared, it cooled and obtained urethane acrylate (X-7). The obtained urethane acrylate (X-7) had an acryloyl group equivalent of 10,208 and a weight average molecular weight of 22,000.
[実施例1]
<紫外線硬化型粘着剤組成物の調製>
攪拌機、還流冷却管、温度計を備えた反応容器に、前記ウレタンアクリレート(X−1)100質量部、ブチルアクリレート(以下、「BA」と略記する。)105質量部、ジメチルアクリルアミド(以下、「DMAA」と略記する。)10質量部を投入し、80℃で均一になるまで撹拌した。その後、室温まで冷却し、撹拌下で2,4,6−トリメチルベンゾイルフェニルフォスフィンオキサイド3質量部、デカン二酸ビス(2,2,6,6−テトラメチル−1−(オクチルオキシ)−4−ピペリジニル)エステル0.5質量部、トリフェニルホスフィン0.5質量部、3−グリシドキシプロピルトリエトキシシラン0.1質量部を添加し、均一になるまで撹拌した。その後、200メッシュ金網で濾過し、紫外線硬化型粘着剤組成物を得た。[Example 1]
<Preparation of UV-curable adhesive composition>
In a reaction vessel equipped with a stirrer, a reflux condenser, and a thermometer, 100 parts by mass of the urethane acrylate (X-1), 105 parts by mass of butyl acrylate (hereinafter abbreviated as “BA”), dimethylacrylamide (hereinafter, “ Abbreviated as “DMAA”.) 10 parts by mass were added and stirred at 80 ° C. until uniform. Thereafter, the mixture was cooled to room temperature, and 3 parts by mass of 2,4,6-trimethylbenzoylphenylphosphine oxide and bis (2,2,6,6-tetramethyl-1- (octyloxy) -4 decanedioate under stirring. -Piperidinyl) ester 0.5 mass part, triphenylphosphine 0.5 mass part, 3-glycidoxypropyl triethoxysilane 0.1 mass part was added, and it stirred until it became uniform. Thereafter, the mixture was filtered through a 200 mesh wire net to obtain an ultraviolet curable pressure-sensitive adhesive composition.
[実施例2〜6、比較例1〜2]
用いるウレタン(メタ)アクリレート、(メタ)アクリル単量体の種類及び量を表1に示す通りに変更した以外は、実施例1と同様にして紫外線硬化型粘着剤組成物を得た。[Examples 2-6, Comparative Examples 1-2]
An ultraviolet curable pressure-sensitive adhesive composition was obtained in the same manner as in Example 1 except that the type and amount of urethane (meth) acrylate and (meth) acrylic monomer used were changed as shown in Table 1.
[粘着フィルムの作製方法]
表面に離型処理された厚さ50μmのポリエチレンテレフタレートフィルム(離型PET50)の表面に、UV照射後における膜厚が175μmとなるように実施例及び比較例で得られた紫外線硬化型粘着剤脂組成物を塗布し、離型PET50を貼り合せた。その後、UV照射装置にて、離型PET50透過後のUV−A領域の波長の積算光量が1J/cm2となるようにUV照射し、粘着フィルムを作製した。[Method for producing adhesive film]
UV curable adhesive fats obtained in Examples and Comparative Examples so that the film thickness after UV irradiation is 175 μm on the surface of a 50 μm-thick polyethylene terephthalate film (mold-release PET 50) whose surface has been subjected to mold release treatment The composition was applied, and release PET50 was bonded. Then, UV irradiation was performed with a UV irradiation apparatus so that the integrated light quantity of the wavelength in the UV-A region after passing through the release PET 50 was 1 J / cm 2 , thereby producing an adhesive film.
[粘着力の測定方法]
前述の方法で作成した粘着フィルムの片面を、厚さ75μmのポリエチレンテレフタレートフィルム(PET75)に貼り合せ、片面にPET75基材が貼り合された粘着フィルムを作成した。これを25mm幅に切ったものを試験片とした。該試験片を2kgロール×2往復で被着体であるガラス板、ポリカーボネート(PC)板にそれぞれ貼り付けた。貼り付け1時間後に23℃、湿度50%の雰囲気下で180度剥離強度を測定し、粘着力とした。[Measurement method of adhesive strength]
One side of the pressure-sensitive adhesive film prepared by the above-described method was bonded to a 75 μm-thick polyethylene terephthalate film (PET75), and a pressure-sensitive adhesive film having a PET75 substrate bonded to one side was prepared. What cut this into 25 mm width was made into the test piece. The test piece was attached to a glass plate and a polycarbonate (PC) plate, which are adherends, by 2 kg rolls × 2 reciprocations. One hour after pasting, the 180-degree peel strength was measured in an atmosphere of 23 ° C. and 50% humidity to obtain adhesive strength.
[耐湿熱白化性の評価方法]
前述の方法で作成した粘着フィルムの片面を、厚さ100μmのポリエチレンテレフタレートフィルム(PET100)に貼り合せ、片面にPET100基材が貼り合された粘着フィルムを作製した。これを縦50mm、横40mmに切り、ガラス板に2kgロール×2往復で貼り付けたものを試験片とした。その試験片を、濁度計「NDH5000」(日本電色工業(株)製)にて、JISK7361−1−1997に準じてヘイズ(%)を測定し、この値を初期値とした。次に、この試験片を85℃、湿度85%の囲気下に10分放置した後取り出し、取り出し後10分以内にヘイズ(%)を濁度計「NDH5000」(日本電色工業(株)製)にて、JISK7361−1−1997に準じて測定した。[Evaluation method for resistance to moist heat whitening]
One side of the pressure-sensitive adhesive film prepared by the above-described method was bonded to a polyethylene terephthalate film (PET100) having a thickness of 100 μm, and a pressure-sensitive adhesive film having a PET100 substrate bonded to one side was prepared. This was cut into a length of 50 mm and a width of 40 mm, and a 2 kg roll × 2 reciprocating paste on a glass plate was used as a test piece. The haze (%) of the test piece was measured with a turbidimeter “NDH5000” (manufactured by Nippon Denshoku Industries Co., Ltd.) according to JIS K7361-1-1997, and this value was used as the initial value. Next, the test piece was left for 10 minutes in an atmosphere of 85 ° C. and 85% humidity and then taken out, and the haze (%) was taken within 10 minutes after taking out the turbidimeter “NDH5000” (manufactured by Nippon Denshoku Industries Co., Ltd.). ) And measured according to JISK7361-1-1997.
[耐湿熱黄変性の評価方法]
前述の方法で作成した粘着フィルムの片面をガラス板に貼り付け、更にもう1枚の離型PET50を剥離したものを試験片とした。その試験片を、光源C、視野2°、分光測色計「CM−5000d」(コニカミノルタセンシング株式会社製)にて、JISK7105−1981に準じて黄変度(b*)を測定した。また、前記試験片を80℃、湿度85%の雰囲気下で500時間放置した後に、同様に黄変度(b*)を測定した。[Method of evaluating wet heat yellowing resistance]
A test piece was prepared by sticking one side of the pressure-sensitive adhesive film prepared by the above-described method to a glass plate and further peeling off another release PET50. The yellowing degree (b *) of the test piece was measured according to JISK7105-1981 using a light source C, a visual field of 2 °, and a spectrocolorimeter “CM-5000d” (manufactured by Konica Minolta Sensing Co., Ltd.). Further, after the test piece was allowed to stand for 500 hours in an atmosphere of 80 ° C. and 85% humidity, the degree of yellowing (b *) was measured in the same manner.
なお、表1〜2中の訳語について説明する。
ACMO;アクリロイルモルフォリン
NOA;n−オクチルアクリレート
IOA;イソオクチルアクリレート
TDA;トリデシルアクリレート
CHA;シクロヘキシルアクリレート
IBXA;イソボルニルアクリレートThe translated words in Tables 1 and 2 will be described.
ACMO; acryloylmorpholine NOA; n-octyl acrylate IOA; isooctyl acrylate TDA; tridecyl acrylate CHA; cyclohexyl acrylate IBXA; isobornyl acrylate
本発明の紫外線硬化型粘着剤組成物を用いて得られた粘着剤は、粘着力、耐湿熱白化性及び耐湿熱黄変性に優れることが分かった。 It was found that the pressure-sensitive adhesive obtained using the ultraviolet curable pressure-sensitive adhesive composition of the present invention is excellent in adhesive strength, heat-and-moisture whitening resistance and heat-and-heat yellowing resistance.
一方、比較例1は、ウレタン(メタ)アクリレートの原料としてポリエチレングリコールを用いない態様であるが、耐湿熱白化性が不良であることが分かった。 On the other hand, although the comparative example 1 is an aspect which does not use polyethyleneglycol as a raw material of urethane (meth) acrylate, it turned out that moisture-and-heat whitening resistance is unsatisfactory.
比較例2は、ウレタン(メタ)アクリレートの原料としてポリエチレングリコールを用いず、かつ、(メタ)アクリル単量体として黄変性の高いACMOを多量に用いた態様であるが、耐湿熱黄変性が不良であることが分かった。 Comparative Example 2 is an embodiment in which polyethylene glycol is not used as a raw material for urethane (meth) acrylate, and a large amount of yellowish ACMO is used as a (meth) acrylic monomer, but the heat and heat yellowing resistance is poor. It turns out that.
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WO2015098308A1 (en) * | 2013-12-25 | 2015-07-02 | Dic株式会社 | Ultraviolet curable adhesive composition, adhesive film and method for producing adhesive film |
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