Patent ID: 8175439
Filing Date: 2012-05-08
Classification: C08G,C08L,C09D,G02B

Abstract:
1. A curable composition for an optical material, comprising as essential components: (A): a silicon-containing polymer having an epoxy group, containing a silicon atom having at least three oxygen atoms bonded thereto, having an Si—R group where R represents an alkyl group, a phenyl group, an alkylphenyl group, or a phenylalkyl group, or an alkyl group, phenyl group, alkylphenyl group, or phenylalkyl group in which some or all hydrogen atoms are substituted with a halogen or deuterium atom and an Si—OR′ group where R′ represents an alkyl group, a phenyl group, an alkylphenyl group, or a phenylalkyl group, or an alkyl group, phenyl group, alkylphenyl group, or phenylalkyl group in which some or all hydrogen atoms are substituted with a halogen or deuterium atom, and having a weight average molecular weight of 1,000 to 1,000,000; (B): an epoxy resin represented by the following general formula (1): where X and Y may be identical to or different from each other, and each represent a monovalent group selected from a hydrogen atom, an alkyl group, a fluoroalkyl group, a perfluoroalkyl group, a phenyl group, an alkylphenyl group, a fluorophenyl group, a perfluorophenyl group, a fluoroalkylphenyl group, and a perfluoroalkylphenyl group, n represents a positive number, and R 1 to R 18 each represent a hydrogen atom, a halogen atom, a hydrocarbon group which may contain an oxygen atom or a halogen atom, or an alkoxy group which may have a substituent; and (C): an energy ray-sensitive cationic polymerization initiator.