Patent ID: 7758930
Filing Date: 2010-07-20
Classification: C09K,G02B,G02F,G03F

Abstract:
1. A curable resin composition comprising: a copolymer (a) having a molecular structure in which a constitutional unit including an acidic functional group and a constitutional unit including a photocurable functional group are linked at least; a photopolymerization initiator (b) having a tertiary amine structure; a photocurable compound (c) having at least one acidic functional group and at least three photocurable functional groups; and a photocurable compound (d) having at least two photocurable functional groups with the proviso that the photocurable compound (d) is other than the photocurable compound (c), wherein the copolymer (a) includes a constitutional unit represented by a following formula (1) and/or a constitutional unit represented by a following formula (2), as the constitutional unit having the photocurable unit: Formula (1) wherein R1 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and R2 is a hydrogen or a methyl group; Formula (2) wherein R1 is the same as defined above, R3 is an alkylene group having 2 to 4 carbon atoms, R4 is an alkylene group, and R5 is a hydrogen atom or a methyl group; and wherein the weight ratio of the photocurable compound (c) to a total of the photocurable compound (c) and the photocurable compound (d), ((c)/[(c)+(d)]), is in a range from 0.1 to 1.0.