Patent ID: 6498200
Filing Date: 2002-12-24
Classification: C08G,C08L,H01B

Abstract:
A cationically polymerizable resin composition which comprises(A) a compound containing at least one ring selected from the group consisting of an oxirane ring and an oxetane ring, said compound being selected from the group consisting of a bisphenol A epoxy resin having an average molecular weight of 400 or less, p-glycidylphenyldimethyltolyl bisphenol A glycidyl ether, a bisphenol F epoxy resin., a phenol novolak epoxy resin having an average molecular weight of 570 or less, vinyl(3,4-cyclohexene)dioxide, (3,4-epoxycyclohexyl)methyl 3,4-epoxycyclohexylcarboxylate, bis(3,4epoxy-6-methylcyclohexylmethyl)adipate, 2-(3,4-epoxycyclohexyl)5,1-spiro(3,4-epoxycyclohexyl)-m-dioxane, diglycidyl hexahydrophthalate, diglycidyl 3-methylhexahydrophthalate, diglycidyl hexahydroterephthalate, diglycidylaniline, diglycidyltoluidine, triglycidyl-p-aminophenol, tetraglycidyl-m-xylylene diamine, tetraglycidyl-bis(aminomethyl)cyclohexane, 1,3-diglycidyl-5-methyl-5-ethylhydantoin, n-butyl glycidyl ether, 2-ethylhexyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, p-s-butylphenyl glycidyl ether, styrene oxide, &agr;-pinene oxide, allyl glycidyl ether, glycidyl methacrylate, 1-vinyl-3,4-epoxycyclohexane, (poly)ethyleneglycol diglycidyl ether, (poly)propyleneglycol diglycidyl ether, butanediol glycidyl ether, neopentylglycol diglycidyl ether, trimethylolpropane triglycidyl ether, glycerin triglycidyl ether, 3-glycidoxypropyl trimethoxysilane, 3-glycidoxypropyl(methyl)dimethoxy silane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxy silane, 2-(3,4-epoxycyclohexyl)ethyl(methyl)dimethoxy silane, 1,3-bis(3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane, 3-ethyl-3-hydroxymethyloxetane, 3-ethyl-3-hexyloxymethyloxetane, 3-ethyl-3-allyloxymethyloxetane, 3-ethyl-3-benzyloxymethyloxetane, 3-ethyl-3-methacryloxymethyloxetane, 3-ethyl-3-carboxyloxetane, bis-{[ethyl(3-oxetanyl)]methyl}ether, 1,4-bis[ethyl(3-oxetanyl)methoxymethyl]benzene, bis{[ethyl(3-oxetanyl)]methyl}carbonate, bis{[ethyl(3-oxetanyl)]ethyl}adipate, bis{[ethyl(3-oxetanyl)]methyl}terephthalate, bis{[ethyl(3-oxetanyl)]methyl}-1,4-cyclohexanecarboxylate, bis{4-[ethyl(3-oxetanyl)methoxycarbonylamino]phenyl}methane, &agr;,&ohgr;-bis-{3-[1-ethyl(3-oxetanyl)methoxy]propyl(polydimethylsiloxane) and oligo(glycidyloxetane-co-phenylglycidyl ether); (B) at least one onium salt in an amount of 2 to 8 parts by weight based on 100 parts by weight of (A), said onium salt being selected from the group consisting of an iodonium salt, a sulfonium salt, an ammonium salt, a phosphonium salt, a diazonium salt and a pyridinium salt of the following formula: â€ƒwherein R is the same or different and is a straight or branched alkyl group having 1 to 15 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, said cycloalkyl group being unsubstituted or substituted by an alkyl group having 1 to 15 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a monovalent substituted hydrocarbon group selected from the group consisting of 4-hydroxyphenyl, 4-methoxyphenyl, 4-ethoxyphenyl, 4-cyanophenyl, 4-chlorophenyl, 4-acetoxyphenyl, 4-propanoylphenyl, 4-methoxycarbonylphenyl, 4-ethoxycarbonylphenyl, 4-methoxybenzyl, 4-ethoxybenzyl, 4-t-butoxybenzyl, 4-nitrobenzyl and 4-cyanobenzyl, E1 is an iodine atom, a sulfur atom, a nitrogen atom, a phosphorus atom, a diazo group or an unsubstituted or ring-substituted pyridinio group, E2 is a sulfur atom or a nitrogen atom, Z is a zwitter ion which is BF4, PF4, AsF6, SbF6 or (C6H5)4B, a is 2 when E1 is an iodine atom, a is 3 when E1 is a sulfur atom, a is 4 when E1 is a nitrogen atom or a phosphorus atom, or a is 1 when E1 is a diazo group or an unsubstituted or ring-substituted pyridinio group, b is 1 when E2 is a sulfur atom or b is 2 when E2 is a nitrogen atom, and c is 4 or 5; (C) an organic peroxide in an amount of 0.01 to 1 part by weight based on 100 parts by weight of (A); and (D) an alkaline filler except for a hydroxide, said alkaline filler being in an amount of 5 to 15 fold of the amount of (B).