JP3923340B2 - Perfluoroalkyl group-containing prepolymer and polymerized cured product thereof - Google Patents
Perfluoroalkyl group-containing prepolymer and polymerized cured product thereof Download PDFInfo
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- JP3923340B2 JP3923340B2 JP2002057535A JP2002057535A JP3923340B2 JP 3923340 B2 JP3923340 B2 JP 3923340B2 JP 2002057535 A JP2002057535 A JP 2002057535A JP 2002057535 A JP2002057535 A JP 2002057535A JP 3923340 B2 JP3923340 B2 JP 3923340B2
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- 125000005010 perfluoroalkyl group Chemical group 0.000 title claims description 33
- 150000001875 compounds Chemical class 0.000 claims description 44
- 239000000203 mixture Substances 0.000 claims description 33
- 229920006037 cross link polymer Polymers 0.000 claims description 26
- -1 acryloyloxy group Chemical group 0.000 claims description 25
- 238000004132 cross linking Methods 0.000 claims description 23
- 238000006116 polymerization reaction Methods 0.000 claims description 23
- 125000000524 functional group Chemical group 0.000 claims description 22
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- 125000003700 epoxy group Chemical group 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 12
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 claims description 12
- 229910052731 fluorine Inorganic materials 0.000 claims description 12
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 8
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 7
- 239000003505 polymerization initiator Substances 0.000 claims description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000001153 fluoro group Chemical group F* 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- 125000004018 acid anhydride group Chemical group 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 238000010526 radical polymerization reaction Methods 0.000 claims description 4
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 4
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000010538 cationic polymerization reaction Methods 0.000 claims description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 42
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 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 10
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical class C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 239000010436 fluorite Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000001723 curing Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 3
- 244000028419 Styrax benzoin Species 0.000 description 3
- 235000000126 Styrax benzoin Nutrition 0.000 description 3
- 235000008411 Sumatra benzointree Nutrition 0.000 description 3
- 238000012644 addition polymerization Methods 0.000 description 3
- 229960002130 benzoin Drugs 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 235000019382 gum benzoic Nutrition 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 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
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 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
- 239000012965 benzophenone Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012954 diazonium Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 2
- 230000001678 irradiating effect Effects 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
- 125000006551 perfluoro alkylene group Chemical group 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- 238000012719 thermal polymerization Methods 0.000 description 2
- LTVUCOSIZFEASK-MPXCPUAZSA-N (3ar,4s,7r,7as)-3a-methyl-3a,4,7,7a-tetrahydro-4,7-methano-2-benzofuran-1,3-dione Chemical compound C([C@H]1C=C2)[C@H]2[C@H]2[C@]1(C)C(=O)OC2=O LTVUCOSIZFEASK-MPXCPUAZSA-N 0.000 description 1
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 description 1
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 1
- LUYHWJKHJNFYGV-UHFFFAOYSA-N 1,2-diisocyanato-3-phenylbenzene Chemical compound O=C=NC1=CC=CC(C=2C=CC=CC=2)=C1N=C=O LUYHWJKHJNFYGV-UHFFFAOYSA-N 0.000 description 1
- ZXHZWRZAWJVPIC-UHFFFAOYSA-N 1,2-diisocyanatonaphthalene Chemical compound C1=CC=CC2=C(N=C=O)C(N=C=O)=CC=C21 ZXHZWRZAWJVPIC-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- ATOUXIOKEJWULN-UHFFFAOYSA-N 1,6-diisocyanato-2,2,4-trimethylhexane Chemical compound O=C=NCCC(C)CC(C)(C)CN=C=O ATOUXIOKEJWULN-UHFFFAOYSA-N 0.000 description 1
- ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 description 1
- 125000004206 2,2,2-trifluoroethyl group Chemical group [H]C([H])(*)C(F)(F)F 0.000 description 1
- BQZJOQXSCSZQPS-UHFFFAOYSA-N 2-methoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OC)C(=O)C1=CC=CC=C1 BQZJOQXSCSZQPS-UHFFFAOYSA-N 0.000 description 1
- RIWRBSMFKVOJMN-UHFFFAOYSA-N 2-methyl-1-phenylpropan-2-ol Chemical compound CC(C)(O)CC1=CC=CC=C1 RIWRBSMFKVOJMN-UHFFFAOYSA-N 0.000 description 1
- BYPFICORERPGJY-UHFFFAOYSA-N 3,4-diisocyanatobicyclo[2.2.1]hept-2-ene Chemical compound C1CC2(N=C=O)C(N=C=O)=CC1C2 BYPFICORERPGJY-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- YAXXOCZAXKLLCV-UHFFFAOYSA-N 3-dodecyloxolane-2,5-dione Chemical compound CCCCCCCCCCCCC1CC(=O)OC1=O YAXXOCZAXKLLCV-UHFFFAOYSA-N 0.000 description 1
- RDNPPYMJRALIIH-UHFFFAOYSA-N 3-methylcyclohex-3-ene-1,1,2,2-tetracarboxylic acid Chemical compound CC1=CCCC(C(O)=O)(C(O)=O)C1(C(O)=O)C(O)=O RDNPPYMJRALIIH-UHFFFAOYSA-N 0.000 description 1
- MECNWXGGNCJFQJ-UHFFFAOYSA-N 3-piperidin-1-ylpropane-1,2-diol Chemical compound OCC(O)CN1CCCCC1 MECNWXGGNCJFQJ-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- UITKHKNFVCYWNG-UHFFFAOYSA-N 4-(3,4-dicarboxybenzoyl)phthalic acid Chemical compound C1=C(C(O)=O)C(C(=O)O)=CC=C1C(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 UITKHKNFVCYWNG-UHFFFAOYSA-N 0.000 description 1
- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Chemical class 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 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 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical class OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- FLBJFXNAEMSXGL-UHFFFAOYSA-N het anhydride Chemical compound O=C1OC(=O)C2C1C1(Cl)C(Cl)=C(Cl)C2(Cl)C1(Cl)Cl FLBJFXNAEMSXGL-UHFFFAOYSA-N 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 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 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- SPVXKVOXSXTJOY-UHFFFAOYSA-O selenonium Chemical class [SeH3+] SPVXKVOXSXTJOY-UHFFFAOYSA-O 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000758 substrate 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
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、新規なパーフルオロアルキル基含有プレポリマー、そのプレポリマーを含む架橋高分子用組成物、その架橋高分子用組成物を架橋重合して硬化する方法、およびその架橋高分子用組成物を架橋重合したもので、例えば光学材料として有用な硬化物に関するものである。
【0002】
【従来の技術】
眼鏡、カメラ、拡大鏡のレンズ、またはプリズム等の光学部品にプラスチックの光学材料が用いられている。プラスチックの光学材料は夫々の材質に固有の屈折率を持っており、光学部品の設計にあたっては、適切な屈折率を持つ材質を選択することになる。しかしプラスチックの光学材料の種類は限られており、屈折率の選択範囲もさほど広いものとはいえない。特に比較的低屈折率の光学材料は限られた種類となっている。
【0003】
低屈折率の光学材料は光学部品の反射防止膜として使用されるが、例えば汎用のポリエチレンテレフタレート、トリアセチルセルロース等のフィルムや、メチルメタクリレート等のプラスチックレンズを用いた場合、反射防止膜として、フィルムやレンズとの密着性がよくしかも適切な低屈折率を持つプラスチックの光学材料は殆どない。
【0004】
【発明が解決しようとする課題】
本発明は前記の課題を解決するためなされたもので、屈折率を適宜選択し得る硬化物を形成するための新規な成分を含む組成物、その重合により低屈折率で光学部品との良好な密着性を有する硬化物を提供することを目的とする。
【0005】
【課題を解決するための手段】
前記の目的を達成するためになされた本発明の架橋高分子用組成物は、下記式〔1〕
CH2=C(R1)CO2−CH3-i(Rf)i ・・・〔1〕
(式〔1〕中、R1は水素原子またはメチル基;i=1〜3の数;Rfは-(CH2)j-CkF2k+1であってj=0〜6かつk=1〜22の数で表される基)で示されるパーフルオロアルキル基含有(メタ)アクリレートと、下記式〔2〕
CH2=C(R2)CO2−A ・・・〔2〕
(式〔2〕中、R2は水素原子またはメチル基;−Aは、水素原子、水酸基含有アルキル基、エポキシ基含有脂肪族アルキル基、エポキシ基含有環状アルキル基、イソシアナート基含有アルキル基、(メタ)アクリロイルオキシ基含有ヒドロキシアルキル基のいずれかの基)で示される架橋官能基含有(メタ)アクリル酸誘導体から選ばれる少なくとも一種類とが共重合したもので、その数平均分子量が1000〜100000のパーフルオロアルキル基含有プレポリマーの10〜90重量部と、
前記架橋官能基に対する反応性基を一分子内に複数持ちフッ素を含有している化合物の10〜90重量部とが
含まれている。
【0006】
式〔1〕中、i=2〜3のとき、Rfは夫々同一であってもよく異なっていてもよい。Rfの-CkF2k+1基は直鎖状パーフルオロアルキル基であってもよく分岐状パーフルオロアルキル基であってもよい。
【0007】
式〔1〕で示されるパーフルオロアルキル基含有(メタ)アクリレート、例えばi=1でj=0であるアクリレートCH2=C(R1)CO2−CH2-CkF2k+1は、炭素数k+1の脂肪酸がフッ素ガスによりフッ素化されたパーフルオロ脂肪酸を還元して得られるアルコールを、(メタ)アクリル酸のエステルに誘導したものである。
【0008】
式〔2〕で示される架橋官能基含有(メタ)アクリル酸誘導体CH2=C(R2)CO2−Aのうちエステルは、例えばアルコールHO−Aを、(メタ)アクリル酸のエステルに誘導したものである。このような−Aは、水酸基含有アルキル基として2−ヒドロキシエチル基、2−ヒドロキシプロピル基、4−ヒドロキシブチル基などが挙げられ、エポキシ基含有脂肪族アルキル基として、2,3−エポキシプロピル基などが挙げられ、エポキシ基含有環状アルキル基として、
【0009】
【化1】
などが挙げられ、イソシアナート基含有アルキル基として-(CH2)2-NCOなどが挙げられ、(メタ)アクリロイルオキシ基含有ヒドロキシアルキル基として、
−CH2CH(OH)CH2-OCOC(R4)=CH2や、
【0010】
【化2】
(ただしR4は水素原子またはメチル基)などが挙げられる。
【0011】
パーフルオロアルキル基含有プレポリマーは、パーフルオロアルキル基含有(メタ)アクリレートと、架橋官能基含有(メタ)アクリル酸誘導体とが、アゾイソブチロニトリル等の重合開始剤の存在下、熱により共重合したものである。
【0012】
パーフルオロアルキル基含有(メタ)アクリレートである2,2,2−トリフルオロエチル (メタ)アクリレートと、架橋官能基含有(メタ)アクリル酸誘導体である2,3−エポキシプロピル (メタ)アクリレートとが共重合したパーフルオロアルキル基含有プレポリマーを例に説明すると、その一部は下記式〔5〕のような構造である。
【0013】
【化3】
【0014】
このパーフルオロアルキル基含有プレポリマーは、本発明の特性を損なわない限り、他のラジカル重合性単量体を含んでいてもよく、例えばライトエステル、ライトアクリレート(いずれも共栄社化学社製の商品名)が挙げられる。
【0015】
本発明の架橋高分子用組成物は、前記のパーフルオロアルキル基含有プレポリマーと、前記架橋官能基含有(メタ)アクリル酸誘導体の架橋官能基に対する反応性基を一分子内に複数持つ化合物とを含んでいる。
【0016】
架橋高分子用組成物には、さらに重合開始剤を加えてもよい。硬化のための重合開始剤として、熱により架橋させる場合には例えばトリフェニルホスフィン、3級アミン、4級アンモニウム塩、イミダゾール化合物、芳香族ジアゾニウム塩、トリアリルスルホニウム塩、有機スズ化合物、アルミニウムの錯化合物などが挙げられ、紫外線照射しカチオン重合させる場合には例えばトリアリルスルホニウム塩、ジアリルヨードニウム塩、トリアリルセレノニウム塩、芳香族ジアゾニウム塩などが挙げられ、紫外線照射しラジカル重合により架橋させる場合には例えばベンゾインやベンゾインメチルエーテル等の例示されるベンゾイン化合物、ベンゾフェノンやアセトフェノン等の例示されるカルボニル化合物、アゾイソブチロニトリル等の例示されるアゾ化合物等が挙げられる。これらの重合開始剤は、官能基の組合せによって適宜選択して使用することができる。
【0017】
この架橋官能基に対する反応性基を持つ化合物は、反応性基として水酸基、エポキシ基、イソシアナート基、(メタ)アクリロイル基、カルボキシル基、酸無水物基から選ばれる基を持っている。
【0018】
この架橋官能基に対する反応性基を持つ化合物としては、2−ヒドロキシエチル(メタ)アクリレートや2−ヒドロキシプロピル(メタ)アクリレートのようなα、β−不飽和化合物が単独で重合しまたは共重合した重合体、脂肪族ポリオール類、フェノール類、ポリアルキレングリコール類が例示されるポリオール類;このポリオール類のいずれかにε−カプロラクトンが付加した付加物;グリシジル(メタ)アクリレートや3,4−エポキシシクロヘキシルメチル(メタ)アクリレートのようなα、β−不飽和化合物が単独で重合しまたは共重合した重合体、エピクロルヒドリンとポリカルボン酸およびポリオールのいずれかとの反応により得られるポリグリシジル化合物、ビスフェノール型エポキシ樹脂、脂環式エポキシ樹脂が例示されるエポキシ基含有化合物;p−フェニレンジイソシアネート、ビフェニルジイソシアネート、トリレンジイソシアネート、3,3−ジメチル−4,4−ビフェニレンジイソシアネート、1,4−テトラメチレンジイソシアネート、ヘキサメチレンジイソシアネート、2,2,4−トリメチルヘキサン−1,6−ジイソシアネート、メチレンビス(フェニルイソシアネート)、リジンメチルエステルジイソシアネート、ビス(イソシアネートエチル)フマレート、イソホロンジイソシアネート、メチルシクロヘキシルジイソシアネート、2−イソシアネートエチル−2,6−ジイソシアネート、ナフタレンジイソシアネート、およびノルボルネンジイソシアネートが例示されるジイソシアネート類;これらイソシアネート類のビュレット体、これらイソシアネート類のイソシアヌレート体、これらのイソシアネート類と前記ポリオール類とのアダクト体が例示されるイソシアネート基含有化合物;ライトエステル、ライトアクリレート、エポキシエステル、ウレタンアクリレート(いずれも共栄社化学社製の商品名)が例示される(メタ)アクリロイル基含有化合物;(メタ)アクリル酸のようなα、β−不飽和化合物が単独で重合しまたは共重合した重合体、脂肪族ポリカルボン酸、芳香族ポリカルボン酸が例示されるカルボキシル基含有化合物;無水フタル酸、テトラヒドロ無水フタル酸、ヘキサヒドロ無水フタル酸、メチルテトラヒドロ無水フタル酸、メチルヘキサヒドロ無水フタル酸、無水メチルナジック酸、ドデシル無水コハク酸、無水クロレンディック酸、無水ピロメリット酸、ベンゾフェノンテトラカルボン酸無水物、無水トリメリット酸、メチルシクロヘキセンテトラカルボン酸無水物、ポリアゼライン酸無水物、スチレン−無水マレイン酸共重合体、α−オレフィン−無水マレイン酸共重合体が例示される酸無水物基含有化合物が挙げられる。
【0019】
また、架橋官能基に対する反応性基を持つ化合物が、反応性基として水酸基、エポキシ基、イソシアナート基、(メタ)アクリロイル基、カルボキシル基から選ばれる基を持ち、フッ素を含有していてもよい。具体的には、前記の例示された化合物が、一部フッ素で置換されたものである。
【0020】
この架橋官能基に対する反応性基を持つ化合物としては、下記式〔3〕
(式〔3〕中、Xは水素原子、フッ素原子またはトリフルオロメチル基、Y−は水素原子であってm,r=1またはY−は2,3−エポキシプロピル基と(メタ)アクリロイル基とのいずれかの基であってm,r=0,1、 n,q=0〜2、 p=2〜14の数)で示される反応性基含有パーフルオロアルキレン化合物が好ましい。例えばY−が2,3−エポキシプロピル基でm,r=1である化合物は、Y−が水素原子でm,r=1であるジオール化合物とクロロメチルオキシランとをアルカリの存在下、脱塩反応することにより得られるもので、具体的にはヘキサデカフルオロデカンジオール−ジエポキシドであるフルオライトFE−16(共栄社化学社製の商品名)が挙げられる。また、このジオール化合物と(メタ)アクリル酸とを酸触媒存在下、脱水させてエステル化することにより、Y−を(メタ)アクリロイル基とする化合物として得られるもので、具体的には、ヘキサデカフルオロデカニルジアクリレートであるフルオライトFA−16(共栄社化学製の商品名)が挙げられる。
【0021】
また、この架橋官能基に対する反応性基を持つ化合物は、下記式〔4〕
(式〔4〕中、Z−は水素原子、2,3−エポキシプロピル基、(メタ)アクリロイル基のいずれかの基、Xは水素原子、フッ素原子、トリフルオロメチル基のいずれかの基、s=1〜6、 t=0〜4、 v=1〜4、 u,w=1〜100の数)で示される反応性基含有ポリパーフルオロアルキレンオキシド化合物であってもよい。
【0022】
Z−が水素原子のポリパーフルオロアルキレンオキシド化合物として、例えばFOMBLIN Z−DIOL(AUSIMONT社製の商品名)が挙げられる。このポリパーフルオロアルキレンオキシド化合物と、クロロメチルオキシランまたは(メタ)アクリル酸とを反応させると、Z−を2,3−エポキシプロピル基または(メタ)アクリロイル基とする化合物が得られる。
【0023】
本発明の高分子の架橋硬化方法は、前記の架橋高分子用組成物を加熱重合、紫外線ラジカル重合、および紫外線カチオン重合のいずれかで重合させるというものである。
【0024】
加熱重合は、例えばベンゾイルパーオキサイドやアゾイソブチロニトリルの例示される熱重合開始剤、トリフェニルホスフィン、3級アミン等の存在下、室温〜200℃の反応条件で進行し、紫外線カチオン重合は例えばトリアリルスルホニウム塩等の存在下、高圧水銀灯による約360mJ/cm2照射の反応条件で進行し、紫外線ラジカル重合は例えばベンゾイン、ベンゾインアルキルエーテル、ベンゾフェノン等の存在下、高圧水銀灯による約360mJ/cm2照射の反応条件で進行する。
【0025】
この架橋硬化方法は、パーフルオロアルキル基含有プレポリマー10〜90重量部、架橋官能基に対する反応性基を持つ化合物10〜90重量部、重合開始剤0.1〜10重量部、および添加剤0〜50重量部が混合された架橋高分子用組成物を使用することで好適に実施することができる。この添加剤は、有機成分としてポリ メチル メタクリレート(PMMA)等の有機フィラー、無機成分として酸化珪素等の酸化金属微粒子およびそのゾル、シランカップリング剤およびその部分加水分解物から選ばれる少なくとも一種類である。
【0026】
本発明の架橋重合硬化物は、前記の架橋高分子用組成物を重合させたものである。
【0027】
架橋重合硬化物は、パーフルオロアルキル基含有プレポリマーが、架橋官能基に対する反応性基を持つ化合物を介して架橋したものである。
【0028】
すなわち、この架橋は、パーフルオロアルキル基含有プレポリマー同士の間に、架橋官能基に対する反応性基を持つ化合物を介して形成されたものである。
【0029】
例えば、これら反応性基を持つ化合物中の末端水酸基と、パーフルオロアルキル基含有プレポリマー中にあって前記式〔2〕で示される−A由来のエポキシ基、またはイソシアナート基とが反応し、パーフルオロアルキル基含有プレポリマーと反応性基を持つ化合物とが開環重合したり付加重合したりする結果、架橋が形成される。
【0030】
または、これら反応性基を持つ化合物中の末端のエポキシ基と、パーフルオロアルキル基含有プレポリマー中にあって前記式〔2〕で示されCH2=C(R2)CO2−A由来のカルボキシル基、水酸基、またはエポキシ基とが反応して、パーフルオロアルキル基含有プレポリマーと架橋官能基に対する反応性基を持つ化合物とが開環重合する結果、架橋が形成される。
【0031】
または、これら反応性基を持つ化合物中の酸無水物基と、パーフルオロアルキル基含有プレポリマー中にあって前記式〔2〕で示されCH2=C(R2)CO2−A由来の水酸基、エポキシ基とが反応して、パーフルオロアルキル基含有プレポリマーと架橋官能基に対する反応性基を持つ化合物とが開環重合したり付加重合したりする結果、架橋が形成される。
【0032】
または、これら反応性基を持つ化合物中の末端の(メタ)アクリロイル基とパーフルオロアルキル基含有プレポリマー中の(メタ)アクリロイル基等とが反応し、プレポリマーと反応性基を持つ化合物とが付加重合する結果、架橋が形成される。
【0033】
さらに架橋は、パーフルオロアルキル基含有プレポリマー同士が直接に結合することによっても形成される。すなわちこのプレポリマー中の前記式〔2〕で示される−A由来のエポキシ基同士、または(メタ)アクリロイルオキシ基の二重結合同士が反応して、プレポリマー同士が付加する結果、架橋が形成される。
【0034】
架橋重合硬化物は、プレポリマー同士が直接に、あるいは架橋官能基に対する反応性基を持つ化合物を介して間接に架橋し、さらに別なプレポリマーが架橋し、順次繰返されて遂には多数のプレポリマーが3次元的に網目状に架橋されたものである。
【0035】
架橋重合硬化物は、屈折率が1.28〜1.45である。
架橋重合硬化物中のフッ素の含有量が多いほど、硬化物の屈折率は低下する。フッ素の含有量は、架橋高分子用組成物として、パーフルオロアルキル基やパーフルオロアルキレン基の炭素数の増減した成分を用いたり、パーフルオロアルキル基含有プレポリマーと架橋官能基に対する反応性基を持つ化合物との配合比率を増減したものを用いることによって、調整できる。これにより適切な屈折率を有する架橋重合硬化物が得られる。
【0036】
架橋重合硬化物は、フッ素を含んでいるので低屈折率であり、光学材料として有用である。プラスチックレンズやガラス板等の上に架橋重合硬化物を膜状に形成させると低屈折率であるため反射防止の効果がある。
【0037】
この膜は、汎用されているポリエチレンテレフタレートやトリアセチルセルロース等のフィルム上、またはメチルメタクリレート製のプラスチックレンズ上に形成されていると、架橋重合硬化物がフィルムやレンズの材質と同種の(メタ)アクリレートの重合体であるため密着性が良く、剥離が起こらない。
【0038】
また、架橋重合硬化物は、レンズやプリズム等の光学基材の光学材料、例えば鋳型に流し込んで成形するキャスティング剤として使用することができる。硬化物は、その表面にパーフルオロアルキル基やパーフルオロアルキレン基が露出し表面エネルギーを低下させているので、鋳型からの離形性に優れ、さらに塵埃との相互作用が小さいので塵埃を吸着せず防汚性にも優れている。
【0039】
【実施例】
本発明の実施例を詳細に説明する。
以下、本発明を適用するパーフルオロアルキル基含有プレポリマーを試作した例を実施例1に、このプレポリマーを含有する架橋高分子用組成物を試作した例を実施例2に、この架橋高分子用組成物を用いて架橋重合硬化物を形成した例を実施例3に示す。
【0040】
の混合物を窒素雰囲気下、80℃で7時間攪拌して反応させることによりパーフルオロアルキル基含有プレポリマーのメチルエチルケトン溶液を得た。
【0041】
得られたプレポリマーについて、ゲルパーミエーションクロマトグラフ(昭和電工社製)を用いて測定した数平均分子量は、12000であった。
【0042】
(実施例2)
実施例1で得られたプレポリマーのメチルエチルケトン溶液の26重量部と、フルオライトFE−16の4重量部と、トリフェニルホスフィンの0.4重量部とを混合し、メチルエチルケトンで固形分が10%となるように希釈することにより、架橋高分子用組成物を得た。
【0043】
(実施例3)
実施例2で得られた架橋高分子用組成物を、ポリエチレンテレフタレート(PET)フィルムに、乾燥させた後の膜厚が0.1μmとなるよう塗工し、150℃で3分間熱処理することにより、被膜である架橋重合硬化物を得た。
この架橋重合硬化物は、屈折率が1.39であった。
【0044】
(実施例4)
実施例1で得られたプレポリマーのメチルエチルケトン溶液の30重量部と、トリメチロールプロパントリグリシジルエーテルであるエポライト 100MF(共栄社化学社製の商品名)の2重量部と、トリフェニルホスフィンの0.4重量部とを混合し、メチルエチルケトンで固形分が10%となるように希釈することにより、架橋性高分子用組成物を得た。
【0045】
(実施例5)
実施例4で得られた架橋高分子用組成物を、ポリエチレンテレフタレート(PET)フィルムに、乾燥させた後の膜厚が0.1μmとなるよう塗工し、150℃で3分間熱処理することにより、被膜である架橋重合硬化物を得た。
この架橋重合硬化物は、屈折率が1.41であった。
【0046】
の混合物を窒素雰囲気下、80℃で7時間攪拌して反応させることによりパーフルオロアルキル基含有プレポリマーのメチルエチルケトン溶液を得た。
【0047】
得られたプレポリマーについて、ゲルパーミエーションクロマトグラフ(昭和電工社製)を用いて測定した数平均分子量は、20000であった。
【0048】
(実施例7)
実施例6で得られたプレポリマーのメチルエチルケトン溶液の26重量部と、フルオライトFE−16の4重量部と、サンエイド SI−100(三新化学工業社製の商品名)の0.4重量部とを混合し、メチルエチルケトンで固形分が10%になるように希釈することにより、架橋高分子用組成物を得た。
【0049】
(実施例8)
実施例7で得られた架橋高分子用組成物を、ポリエチレンテレフタレート(PET)フィルムに、乾燥させた後の膜厚が0.1μmとなるよう塗工し、100℃で1分間乾燥後、紫外線照射器により360mJ/cm2の紫外線を照射することにより、架橋重合硬化物を得た。
この架橋重合硬化物は、屈折率が1.40であった。
【0050】
(実施例9)
実施例6で得られたプレポリマーのメチルエチルケトン溶液を固形分が60%になるまで濃縮した。これに、
を加え、85℃で8時間、反応させた。
【0051】
得られた不飽和二重結合を有するプレポリマーについて、ゲルパーミエーションクロマトグラフ(昭和電工社製)を用いて測定した数平均分子量は、28000であった。
【0052】
(実施例10)
実施例9で得られた不飽和二重結合を有するプレポリマーのメチルエチルケトン溶液の20重量部と、フルオライトFA−16の3重量部と、ダロキュア1173(チバスペシャリティーケミカルス社製の商品名)の0.5重量部とを混合し、メチルエチルケトンで固形分が10%になるように希釈することにより、架橋高分子用組成物を得た。
【0053】
(実施例11)
実施例10で得られた架橋高分子用組成物を、ポリエチレンテレフタレート(PET)フィルムに、乾燥させた後の膜厚が0.1μmとなるよう塗工し、100℃で1分間乾燥後、紫外線照射器により360mJ/cm2の紫外線を照射することにより、架橋重合硬化物を得た。
この架橋重合硬化物は、屈折率が1.39であった。
【0054】
の混合物を窒素雰囲気下、80℃で7時間攪拌して反応させることによりパーフルオロアルキル基含有プレポリマーのメチルエチルケトン溶液を得た。
【0055】
得られたプレポリマーについて、ゲルパーミエーションクロマトグラフ(昭和電工社製)を用いて測定した数平均分子量は、15000であった。
【0056】
(実施例13)
実施例12で得られたプレポリマーのメチルエチルケトン溶液の26重量部と、フルオライトFE−16の4重量部と、トリフェニルホスフィンの0.4重量部とを混合し、メチルエチルケトンで固形分が10%となるように希釈することにより、架橋高分子用組成物を得た。
【0057】
(実施例14)
実施例13で得られた架橋高分子用組成物を、ポリエチレンテレフタレート(PET)フィルムに、乾燥後の膜厚が0.1μmとなるように塗工した後、150℃で3分間熱処理することにより、架橋重合硬化物を得た。
この架橋重合硬化物は、屈折率が1.39であった。
【0058】
【発明の効果】
以上、詳細に説明したように本発明のパーフルオロアルキル基含有プレポリマーは、硬化成分として用いることができる。このプレポリマーを含む架橋高分子用組成物を架橋重合させた硬化物は低屈折率であり光学材料として有用である。この硬化物は、屈折率を適宜選択することができる。この硬化物を用いて密着性や耐擦傷性に優れた反射防止膜を形成させることもできる。またレンズやプリズム等の光学基材を鋳型成形することができる。さらに防汚剤や、離形剤としても用いることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a novel perfluoroalkyl group-containing prepolymer, a composition for a crosslinked polymer containing the prepolymer, a method for crosslinking and curing the composition for the crosslinked polymer, and a composition for the crosslinked polymer. For example, it relates to a cured product useful as an optical material.
[0002]
[Prior art]
Plastic optical materials are used for optical parts such as glasses, cameras, magnifying lenses, or prisms. Plastic optical materials have a refractive index specific to each material. In designing an optical component, a material having an appropriate refractive index is selected. However, the types of plastic optical materials are limited, and the selection range of the refractive index is not so wide. In particular, optical materials having a relatively low refractive index are of a limited type.
[0003]
The low refractive index optical material is used as an antireflection film for optical components. For example, when a film such as general-purpose polyethylene terephthalate or triacetylcellulose, or a plastic lens such as methyl methacrylate is used, the film is used as an antireflection film. There are few plastic optical materials that have good adhesion to lenses and lenses and have an appropriate low refractive index.
[0004]
[Problems to be solved by the invention]
The present invention has been made to solve the above problems, a composition comprising a novel Ingredients to form a cured product capable of selecting the refractive index appropriately, the polymerization of that optical component with low refractive index It aims at providing the hardened | cured material which has favorable adhesiveness.
[0005]
[Means for Solving the Problems]
The composition for a crosslinked polymer of the present invention made to achieve the above object is represented by the following formula [1].
CH 2 = C (R 1) CO 2 -CH 3-i (Rf) i ··· [1]
(In the formula [1], R 1 is a hydrogen atom or a methyl group; i = 1 to 3; Rf is — (CH 2 ) j —C k F 2k + 1 where j = 0 to 6 and k = A perfluoroalkyl group-containing (meth) acrylate represented by the following formula [2]:
CH 2 = C (R 2) CO 2 -A ··· (2)
(In the formula [2], R 2 is a hydrogen atom or a methyl group; -A is a hydrogen atom, a hydroxyl group-containing alkyl group, an epoxy group-containing aliphatic alkyl group, an epoxy group-containing cyclic alkyl group, an isocyanate group-containing alkyl group, (Meth) acryloyloxy group-containing hydroxyalkyl group) is a copolymerized with at least one selected from cross-linked functional group-containing (meth) acrylic acid derivatives, and the number average molecular weight is 1000 to 1000. 10 to 90 parts by weight of 100,000 perfluoroalkyl group-containing prepolymer;
10 to 90 parts by weight of the compound having a plurality of reactive groups with respect to the crosslinking functional group in one molecule and containing fluorine
include.
[0006]
In formula [1], when i = 2 to 3, Rf may be the same or different. The —C k F 2k + 1 group of Rf may be a linear perfluoroalkyl group or a branched perfluoroalkyl group.
[0007]
Perfluoroalkyl group-containing (meth) acrylate represented by the formula [1], for example, acrylate CH 2 ═C (R 1 ) CO 2 —CH 2 —C k F 2k + 1 where i = 1 and j = 0 is An alcohol obtained by reducing a perfluoro fatty acid in which a fatty acid having k + 1 carbon atoms is fluorinated with fluorine gas is derived from an ester of (meth) acrylic acid.
[0008]
Among the cross-linked functional group-containing (meth) acrylic acid derivative CH 2 ═C (R 2 ) CO 2 —A represented by the formula [2], an ester derives, for example, an alcohol HO-A to an ester of (meth) acrylic acid. It is a thing. Such -A includes 2-hydroxyethyl group, 2-hydroxypropyl group, 4-hydroxybutyl group and the like as the hydroxyl group-containing alkyl group, and 2,3-epoxypropyl group as the epoxy group-containing aliphatic alkyl group. As an epoxy group-containing cyclic alkyl group,
[0009]
[Chemical 1]
Examples of the isocyanate group-containing alkyl group include — (CH 2 ) 2 —NCO, etc., and the (meth) acryloyloxy group-containing hydroxyalkyl group includes
-CH 2 CH (OH) CH 2 -OCOC (R 4 ) = CH 2
[0010]
[Chemical 2]
(Wherein R 4 is a hydrogen atom or a methyl group).
[0011]
In the perfluoroalkyl group-containing prepolymer, the perfluoroalkyl group-containing (meth) acrylate and the cross-linked functional group-containing (meth) acrylic acid derivative are co-polymerized by heat in the presence of a polymerization initiator such as azoisobutyronitrile. It is a polymerized one.
[0012]
2,2,2-trifluoroethyl (meth) acrylate which is a perfluoroalkyl group-containing (meth) acrylate and 2,3-epoxypropyl (meth) acrylate which is a crosslinked functional group-containing (meth) acrylic acid derivative Taking a copolymerized perfluoroalkyl group-containing prepolymer as an example, a part thereof has a structure represented by the following formula [5].
[0013]
[Chemical 3]
[0014]
This perfluoroalkyl group-containing prepolymer may contain other radical polymerizable monomers as long as the characteristics of the present invention are not impaired. For example, light ester, light acrylate (both trade names manufactured by Kyoeisha Chemical Co., Ltd.). ).
[0015]
The composition for a crosslinked polymer of the present invention comprises the perfluoroalkyl group-containing prepolymer and a compound having a plurality of reactive groups in one molecule for the crosslinked functional group of the crosslinked functional group-containing (meth) acrylic acid derivative. Is included.
[0016]
A polymerization initiator may be further added to the composition for a crosslinked polymer. In the case of crosslinking by heat as a polymerization initiator for curing, for example, triphenylphosphine, tertiary amine, quaternary ammonium salt, imidazole compound, aromatic diazonium salt, triallylsulfonium salt, organotin compound, aluminum complex Examples include compounds such as triallylsulfonium salt, diallyl iodonium salt, triallyl selenonium salt, aromatic diazonium salt and the like when crosslinking by radical polymerization after irradiation with ultraviolet rays. Examples include benzoin compounds such as benzoin and benzoin methyl ether, carbonyl compounds exemplified such as benzophenone and acetophenone, and azo compounds exemplified such as azoisobutyronitrile. These polymerization initiators can be appropriately selected and used depending on the combination of functional groups.
[0017]
The compound having a reactive group for the cross-linking functional group has a group selected from a hydroxyl group, an epoxy group, an isocyanate group, a (meth) acryloyl group, a carboxyl group, and an acid anhydride group as the reactive group.
[0018]
As the compound having a reactive group for the cross-linking functional group, an α, β-unsaturated compound such as 2-hydroxyethyl (meth) acrylate and 2-hydroxypropyl (meth) acrylate is polymerized or copolymerized alone. Polyols exemplified by polymers, aliphatic polyols, phenols and polyalkylene glycols; adducts obtained by adding ε-caprolactone to any of these polyols; glycidyl (meth) acrylate or 3,4-epoxycyclohexyl Polymer obtained by polymerizing or copolymerizing α, β-unsaturated compound such as methyl (meth) acrylate alone, polyglycidyl compound obtained by reaction of epichlorohydrin with polycarboxylic acid or polyol, bisphenol type epoxy resin And alicyclic epoxy resins are exemplified Epoxy group-containing compound: p-phenylene diisocyanate, biphenyl diisocyanate, tolylene diisocyanate, 3,3-dimethyl-4,4-biphenylene diisocyanate, 1,4-tetramethylene diisocyanate, hexamethylene diisocyanate, 2,2,4-trimethylhexane 1,6-diisocyanate, methylene bis (phenyl isocyanate), lysine methyl ester diisocyanate, bis (isocyanate ethyl) fumarate, isophorone diisocyanate, methyl cyclohexyl diisocyanate, 2-isocyanate ethyl-2,6-diisocyanate, naphthalene diisocyanate, and norbornene diisocyanate Exemplified diisocyanates; burettes of these isocyanates, Isocyanurates of isocyanates, isocyanate group-containing compounds exemplified by adducts of these isocyanates and the above polyols; light esters, light acrylates, epoxy esters, urethane acrylates (all trade names manufactured by Kyoeisha Chemical Co., Ltd.) A (meth) acryloyl group-containing compound, a polymer in which an α, β-unsaturated compound such as (meth) acrylic acid is polymerized or copolymerized alone, an aliphatic polycarboxylic acid, an aromatic polycarboxylic acid Carboxyl group-containing compounds exemplified by: phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, methyl nadic anhydride, dodecyl succinic anhydride, chlorendic anhydride Acid, pyromellitic anhydride Benzophenone tetracarboxylic acid anhydride, trimellitic anhydride, methylcyclohexene tetracarboxylic acid anhydride, polyazeline acid anhydride, styrene-maleic anhydride copolymer, α-olefin-maleic anhydride copolymer Examples include acid anhydride group-containing compounds.
[0019]
Further, the compound having a reactive group for the cross-linking functional group may have a group selected from a hydroxyl group, an epoxy group, an isocyanate group, a (meth) acryloyl group, and a carboxyl group as the reactive group, and may contain fluorine. . Specifically, the compound exemplified above is partially substituted with fluorine.
[0020]
Examples of the compound having a reactive group for the cross-linking functional group include the following formula [3]
(In the formula [3], X is a hydrogen atom, fluorine atom or trifluoromethyl group, Y- is a hydrogen atom, and m, r = 1 or Y- is a 2,3-epoxypropyl group and a (meth) acryloyl group. And a reactive group-containing perfluoroalkylene compound represented by m, r = 0,1, n, q = 0 to 2, and p = 2 to 14). For example, a compound in which Y- is a 2,3-epoxypropyl group and m, r = 1 is obtained by desalting a diol compound in which Y- is a hydrogen atom and m, r = 1 and chloromethyloxirane in the presence of an alkali. Specifically obtained is fluorite FE-16 (trade name, manufactured by Kyoeisha Chemical Co., Ltd.), which is hexadecafluorodecanediol-diepoxide. Further, this diol compound and (meth) acrylic acid can be obtained by dehydrating and esterifying in the presence of an acid catalyst to obtain a compound having Y- as a (meth) acryloyl group. Fluorite FA-16 (trade name, manufactured by Kyoeisha Chemical Co., Ltd.) which is decafluorodecanyl diacrylate.
[0021]
In addition, the compound having a reactive group for the cross-linking functional group is represented by the following formula [4]
(In Formula [4], Z- is a hydrogen atom, 2,3-epoxypropyl group, any group of (meth) acryloyl group, X is any group of hydrogen atom, fluorine atom, trifluoromethyl group, a reactive group-containing polyperfluoroalkylene oxide compound represented by the following formula: s = 1 to 6, t = 0 to 4, v = 1 to 4, u, w = 1 to 100.
[0022]
Examples of the polyperfluoroalkylene oxide compound in which Z- is a hydrogen atom include FOMBLIN Z-DIOL (trade name, manufactured by AUSIMINT). When this polyperfluoroalkylene oxide compound is reacted with chloromethyloxirane or (meth) acrylic acid, a compound having Z- as a 2,3-epoxypropyl group or (meth) acryloyl group is obtained.
[0023]
The method for crosslinking and curing a polymer according to the present invention comprises polymerizing the composition for a crosslinked polymer by any one of heat polymerization, ultraviolet radical polymerization, and ultraviolet cationic polymerization.
[0024]
The thermal polymerization proceeds under reaction conditions of room temperature to 200 ° C. in the presence of a thermal polymerization initiator exemplified by benzoyl peroxide and azoisobutyronitrile, triphenylphosphine, tertiary amine, etc. For example, it proceeds under the reaction conditions of about 360 mJ / cm 2 irradiation with a high pressure mercury lamp in the presence of triallylsulfonium salt and the like, and ultraviolet radical polymerization is about 360 mJ / cm with high pressure mercury lamp in the presence of benzoin, benzoin alkyl ether, benzophenone, etc. Proceeds under 2 irradiation reaction conditions.
[0025]
This crosslinking curing method comprises 10 to 90 parts by weight of a perfluoroalkyl group-containing prepolymer, 10 to 90 parts by weight of a compound having a reactive group for the crosslinking functional group, 0.1 to 10 parts by weight of a polymerization initiator, and additive 0 It can implement suitably by using the composition for bridge | crosslinking polymers in which -50 weight part was mixed. This additive is at least one selected from organic fillers such as polymethyl methacrylate (PMMA) as organic components, metal oxide fine particles such as silicon oxide as inorganic components and sols thereof, silane coupling agents and partial hydrolysates thereof. is there.
[0026]
The crosslinked polymerization cured product of the present invention is obtained by polymerizing the composition for a crosslinked polymer.
[0027]
The cross-linked polymerization cured product is obtained by cross-linking a perfluoroalkyl group-containing prepolymer via a compound having a reactive group with respect to a cross-linking functional group.
[0028]
That is, this crosslink is formed between the perfluoroalkyl group-containing prepolymers via a compound having a reactive group for the crosslinkable functional group.
[0029]
For example, the terminal hydroxyl group in the compound having these reactive groups reacts with the epoxy group derived from -A represented by the formula [2] in the perfluoroalkyl group-containing prepolymer, or the isocyanate group, As a result of ring-opening polymerization or addition polymerization of the perfluoroalkyl group-containing prepolymer and the compound having a reactive group, a crosslink is formed.
[0030]
Alternatively, the terminal epoxy group in the compound having these reactive groups and the perfluoroalkyl group-containing prepolymer represented by the formula [2] and derived from CH 2 ═C (R 2 ) CO 2 -A A carboxyl group, a hydroxyl group, or an epoxy group reacts to cause ring-opening polymerization of a perfluoroalkyl group-containing prepolymer and a compound having a reactive group with respect to a crosslinking functional group, thereby forming a bridge.
[0031]
Alternatively, an acid anhydride group in a compound having these reactive groups and a perfluoroalkyl group-containing prepolymer derived from CH 2 ═C (R 2 ) CO 2 -A represented by the above formula [2] As a result of the reaction between the hydroxyl group and the epoxy group, the perfluoroalkyl group-containing prepolymer and the compound having a reactive group for the crosslinking functional group undergo ring-opening polymerization or addition polymerization, crosslinking is formed.
[0032]
Or, the terminal (meth) acryloyl group in the compound having a reactive group reacts with the (meth) acryloyl group in the perfluoroalkyl group-containing prepolymer, and the prepolymer and the compound having a reactive group are obtained. As a result of the addition polymerization, crosslinks are formed.
[0033]
Further, the cross-linking is also formed by directly bonding perfluoroalkyl group-containing prepolymers. That is, the epoxy groups derived from -A represented by the formula [2] in the prepolymer or the double bonds of the (meth) acryloyloxy group react with each other, and the prepolymers add to each other, thereby forming a bridge. Is done.
[0034]
In the crosslinked polymerization cured product, the prepolymers are crosslinked directly or indirectly via a compound having a reactive group with respect to the crosslinking functional group, and further another prepolymer is crosslinked. A polymer is three-dimensionally crosslinked in a network.
[0035]
The cross-linked polymerization cured product has a refractive index of 1.28 to 1.45.
The higher the fluorine content in the cross-linked cured product, the lower the refractive index of the cured product. The fluorine content is determined by using a component having increased or decreased carbon number of the perfluoroalkyl group or perfluoroalkylene group as the composition for the crosslinked polymer, or a reactive group for the perfluoroalkyl group-containing prepolymer and the crosslinked functional group. It can adjust by using what increased or decreased the compounding ratio with the compound which has. Thereby, a crosslinked polymerization cured product having an appropriate refractive index is obtained.
[0036]
The crosslinked polymerization cured product contains fluorine and thus has a low refractive index and is useful as an optical material. When a cross-linked polymerized product is formed into a film on a plastic lens, glass plate or the like, it has an antireflection effect because of its low refractive index.
[0037]
When this film is formed on a commonly used film such as polyethylene terephthalate or triacetyl cellulose, or on a plastic lens made of methyl methacrylate, the cross-linked polymerization cured product is the same type of (meth) as the material of the film or lens. Since it is an acrylate polymer, it has good adhesion and does not peel off.
[0038]
The crosslinked polymerization cured product can be used as an optical material for an optical substrate such as a lens or a prism, for example, as a casting agent that is cast into a mold. The cured product has perfluoroalkyl groups and perfluoroalkylene groups exposed on the surface to reduce the surface energy, so it is excellent in releasability from the mold and has little interaction with dust, so it can absorb dust. It also has excellent antifouling properties.
[0039]
【Example】
Examples of the present invention will be described in detail.
Hereinafter, an example in which a prefluoroalkyl group-containing prepolymer to which the present invention is applied was made as an experiment is shown in Example 1, and an example in which a composition for a crosslinked polymer containing this prepolymer is made in Example 2 is shown in Example 2. An example in which a crosslinked polymerization cured product is formed using the composition for use is shown in Example 3.
[0040]
The mixture was stirred and reacted at 80 ° C. for 7 hours under a nitrogen atmosphere to obtain a methyl ethyl ketone solution of a perfluoroalkyl group-containing prepolymer.
[0041]
About the obtained prepolymer, the number average molecular weight measured using the gel permeation chromatograph (made by Showa Denko KK) was 12000.
[0042]
(Example 2)
26 parts by weight of the methyl ethyl ketone solution of the prepolymer obtained in Example 1, 4 parts by weight of fluorite FE-16, and 0.4 parts by weight of triphenylphosphine were mixed, and the solid content was 10% with methyl ethyl ketone. The composition for crosslinked polymers was obtained by diluting so that it might become.
[0043]
(Example 3)
By coating the composition for a crosslinked polymer obtained in Example 2 on a polyethylene terephthalate (PET) film so that the film thickness after drying is 0.1 μm, and heat-treating at 150 ° C. for 3 minutes. A crosslinked polymerized cured product as a film was obtained.
This cross-linked polymerization cured product had a refractive index of 1.39.
[0044]
Example 4
30 parts by weight of the methyl ethyl ketone solution of the prepolymer obtained in Example 1, 2 parts by weight of Epolite 100MF (trade name, manufactured by Kyoeisha Chemical Co.) which is trimethylolpropane triglycidyl ether, and 0.4 parts of triphenylphosphine A composition for a crosslinkable polymer was obtained by mixing with parts by weight and diluting with methyl ethyl ketone to a solid content of 10%.
[0045]
(Example 5)
By coating the composition for a crosslinked polymer obtained in Example 4 on a polyethylene terephthalate (PET) film so that the film thickness after drying is 0.1 μm, and heat-treating at 150 ° C. for 3 minutes. A crosslinked polymerized cured product as a film was obtained.
This crosslinked polymerization cured product had a refractive index of 1.41.
[0046]
The mixture was stirred and reacted at 80 ° C. for 7 hours under a nitrogen atmosphere to obtain a methyl ethyl ketone solution of a perfluoroalkyl group-containing prepolymer.
[0047]
About the obtained prepolymer, the number average molecular weight measured using the gel permeation chromatograph (made by Showa Denko KK) was 20000.
[0048]
(Example 7)
26 parts by weight of the methyl ethyl ketone solution of the prepolymer obtained in Example 6, 4 parts by weight of fluorite FE-16, and 0.4 parts by weight of Sun-Aid SI-100 (trade name, manufactured by Sanshin Chemical Industry Co., Ltd.) And was diluted with methyl ethyl ketone so that the solid content was 10%, to obtain a composition for a crosslinked polymer.
[0049]
(Example 8)
The composition for crosslinked polymer obtained in Example 7 was applied to a polyethylene terephthalate (PET) film so that the film thickness after drying was 0.1 μm, dried at 100 ° C. for 1 minute, and then irradiated with ultraviolet light. By irradiating ultraviolet rays of 360 mJ / cm 2 with an irradiator, a crosslinked polymerization cured product was obtained.
This crosslinked polymerization cured product had a refractive index of 1.40.
[0050]
Example 9
The methyl ethyl ketone solution of the prepolymer obtained in Example 6 was concentrated to a solid content of 60%. to this,
And reacted at 85 ° C. for 8 hours.
[0051]
About the obtained prepolymer which has an unsaturated double bond, the number average molecular weight measured using the gel permeation chromatograph (made by Showa Denko KK) was 28000.
[0052]
(Example 10)
20 parts by weight of the methyl ethyl ketone solution of the prepolymer having an unsaturated double bond obtained in Example 9, 3 parts by weight of fluorite FA-16, and Darocur 1173 (trade name, manufactured by Ciba Specialty Chemicals) 0.5 part by weight was mixed and diluted with methyl ethyl ketone so that the solid content was 10%, to obtain a composition for a crosslinked polymer.
[0053]
(Example 11)
The composition for crosslinked polymer obtained in Example 10 was applied to a polyethylene terephthalate (PET) film so that the film thickness after drying was 0.1 μm, dried at 100 ° C. for 1 minute, and then irradiated with ultraviolet light. By irradiating ultraviolet rays of 360 mJ / cm 2 with an irradiator, a crosslinked polymerization cured product was obtained.
This cross-linked polymerization cured product had a refractive index of 1.39.
[0054]
The mixture was stirred and reacted at 80 ° C. for 7 hours under a nitrogen atmosphere to obtain a methyl ethyl ketone solution of a perfluoroalkyl group-containing prepolymer.
[0055]
About the obtained prepolymer, the number average molecular weight measured using the gel permeation chromatograph (made by Showa Denko KK) was 15000.
[0056]
(Example 13)
26 parts by weight of the methyl ethyl ketone solution of the prepolymer obtained in Example 12, 4 parts by weight of fluorite FE-16, and 0.4 parts by weight of triphenylphosphine were mixed, and the solid content was 10% with methyl ethyl ketone. The composition for crosslinked polymers was obtained by diluting so that it might become.
[0057]
(Example 14)
By coating the composition for a crosslinked polymer obtained in Example 13 on a polyethylene terephthalate (PET) film so that the film thickness after drying becomes 0.1 μm, it is heat-treated at 150 ° C. for 3 minutes. Thus, a crosslinked polymerization cured product was obtained.
This cross-linked polymerization cured product had a refractive index of 1.39.
[0058]
【The invention's effect】
As described above in detail, the perfluoroalkyl group-containing prepolymer of the present invention can be used as a curing component. A cured product obtained by crosslinking and polymerizing the composition for a crosslinked polymer containing the prepolymer has a low refractive index and is useful as an optical material. The cured product can be appropriately selected in refractive index. An antireflection film excellent in adhesion and scratch resistance can be formed using this cured product. In addition, optical base materials such as lenses and prisms can be molded. Further, it can be used as an antifouling agent or a mold release agent.
Claims (7)
CH2=C(R1)CO2−CH3-i(Rf)i ・・・〔1〕
(式〔1〕中、R1は水素原子またはメチル基;i=1〜3の数;Rfは-(CH2)j-CkF2k+1であってj=0〜6かつk=1〜22の数で表される基)で示されるパーフルオロアルキル基含有(メタ)アクリレートと、下記式〔2〕
CH2=C(R2)CO2−A ・・・〔2〕
(式〔2〕中、R2は水素原子またはメチル基;−Aは、水素原子、水酸基含有アルキル基、エポキシ基含有脂肪族アルキル基、エポキシ基含有環状アルキル基、イソシアナート基含有アルキル基、(メタ)アクリロイルオキシ基含有ヒドロキシアルキル基のいずれかの基)で示される架橋官能基含有(メタ)アクリル酸誘導体から選ばれる少なくとも一種類とが共重合した数平均分子量1000〜100000のパーフルオロアルキル基含有プレポリマーの10〜90重量部と、
前記架橋官能基に対する反応性基を一分子内に複数持ちフッ素を含有している化合物の10〜90重量部とが
含まれており、
前記化合物が、下記式〔3〕
Y -(O) m -(C X 2 ) n -(CF 2 ) p -(C X 2 ) q -(O) r - Y ・・・〔3〕
(式〔3〕中、Xは水素原子、フッ素原子、トリフルオロメチル基のいずれかの基、Y−は水素原子であってm , r=1またはY−は2,3−エポキシプロピル基と(メタ)アクリロイル基とのいずれかの基であってm , r=0 , 1、 n , q=0〜2、 p=2〜14の数)で示される反応性基含有パーフルオロアルキレン化合物、または下記式〔4〕
Z -O-{(C X 2 ) s -(CF 2 ) t -O} u -{(CF 2 ) v -O} w -{(CF 2 ) t -(C X 2 ) s -O} u - Z ・・・〔4〕
(式〔4〕中、Z−は水素原子、2,3−エポキシプロピル基、(メタ)アクリロイル基のいずれかの基、Xは水素原子、フッ素原子、トリフルオロメチル基のいずれかの基、s=1〜6、 t=0〜4、 v=1〜4、 u , w=1〜100の数)で示される反応性基含有ポリパーフルオロアルキレンオキシド化合物であることを特徴とする架橋高分子用組成物。Following formula [1]
CH 2 = C (R 1) CO 2 -CH 3-i (Rf) i ··· [1]
(In the formula [1], R 1 is a hydrogen atom or a methyl group; i = 1 to 3; Rf is — (CH 2 ) j —C k F 2k + 1 where j = 0 to 6 and k = A perfluoroalkyl group-containing (meth) acrylate represented by the following formula [2]:
CH 2 = C (R 2) CO 2 -A ··· (2)
(In the formula [2], R 2 is a hydrogen atom or a methyl group; -A is a hydrogen atom, a hydroxyl group-containing alkyl group, an epoxy group-containing aliphatic alkyl group, an epoxy group-containing cyclic alkyl group, an isocyanate group-containing alkyl group, Perfluoroalkyl having a number average molecular weight of 1,000 to 100,000, which is copolymerized with at least one selected from cross-linked functional group-containing (meth) acrylic acid derivatives represented by (meth) acryloyloxy group-containing hydroxyalkyl group) 10 to 90 parts by weight of the group-containing prepolymer ;
10 to 90 parts by weight of the compound having a plurality of reactive groups with respect to the crosslinking functional group in one molecule and containing fluorine
Included,
The compound is represented by the following formula [3]
Y - (O) m - ( C X 2) n - (CF 2) p - (C X 2) q - (O) r - Y ··· [3]
(In the formula [3], X is a hydrogen atom, fluorine atom, or trifluoromethyl group, Y- is a hydrogen atom, and m , r = 1 or Y- is a 2,3-epoxypropyl group; Any group with a (meth) acryloyl group and m , r = 0 , 1, n , q = 0-2, a reactive group-containing perfluoroalkylene compound represented by the following formula [4]:
Z -O - {(C X 2 ) s - (CF 2) t -O} u - {(CF 2) v -O} w - {(CF 2) t - (C X 2) s -O} u - Z ··· [4]
(In Formula [4], Z- is a hydrogen atom, 2,3-epoxypropyl group, any group of (meth) acryloyl group, X is any group of hydrogen atom, fluorine atom, trifluoromethyl group, s = 1-6 t = 0-4, v = 1 to 4, A composition for a crosslinked polymer, which is a reactive group-containing polyperfluoroalkylene oxide compound represented by u , w = 1 to 100) .
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US7101618B2 (en) | 2004-05-07 | 2006-09-05 | 3M Innovative Properties Company | Article comprising fluorochemical surface layer |
CN101068845B (en) * | 2004-12-03 | 2010-05-26 | 三菱化学株式会社 | Composition, cured product, and article |
US20060216524A1 (en) | 2005-03-23 | 2006-09-28 | 3M Innovative Properties Company | Perfluoropolyether urethane additives having (meth)acryl groups and hard coats |
US8231973B2 (en) | 2006-06-13 | 2012-07-31 | 3M Innovative Properties Company | Fluoro(meth)acrylate polymer composition suitable for low index layer of antireflective film |
US7615283B2 (en) | 2006-06-13 | 2009-11-10 | 3M Innovative Properties Company | Fluoro(meth)acrylate polymer composition suitable for low index layer of antireflective film |
US20070286994A1 (en) | 2006-06-13 | 2007-12-13 | Walker Christopher B | Durable antireflective film |
US8343624B2 (en) | 2006-06-13 | 2013-01-01 | 3M Innovative Properties Company | Durable antireflective film |
WO2008084831A1 (en) * | 2007-01-12 | 2008-07-17 | Nidec Corporation | Fluorine-containing polymer, oil repellent agent, fluid bearing device, spindle motor, and disc driving device |
US8728623B2 (en) | 2007-08-31 | 2014-05-20 | 3M Innovative Properties Company | Hardcoats having low surface energy and low lint attraction |
JP5332166B2 (en) * | 2007-09-28 | 2013-11-06 | 三菱化学株式会社 | Polymer, composition, cured product and optical recording medium |
JP5356764B2 (en) * | 2008-10-01 | 2013-12-04 | 帝人デュポンフィルム株式会社 | Optical base film |
WO2011129011A1 (en) * | 2010-04-16 | 2011-10-20 | 東ソー・エフテック株式会社 | Composition for a low-refractive-index film |
JP7473811B2 (en) * | 2020-09-08 | 2024-04-24 | セントラル硝子株式会社 | Photocurable composition, cured product thereof, electronic device and optical member |
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