PHOTOPOLYMERIZABLE THERMOSETTING RESIN COMPOSITION

摘要

A photopolymerizable thermosetting resin composition comprising a mixture consisting of (a) an active energy ray-setting resin and obtained by reacting an unsaturated monobasic acid copolymer resin with a cycloaliphatic epoxy group-containing unsaturated compound or reacting a cycloaliphatic epoxy groupcontaining copolymer resin with an acid group-containing unsaturated compound and (b) a photosensitive prepolymer obtained by esterifying a novolak type epoxy compound with an .alpha.-.beta.-unsaturated carboxylic acid and then further reacting with polybasic acid anhydride (and in one embodiment further reacting with an unsaturated isocyanate).