| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin composition that hardens swiftly with ultraviolet rays, shows excellent adhesion to a resin base material and gives cured products of high refractive index by using a specific epoxy (meth)acrylate, a reactive monomer and a photopolymerization initiator. SOLUTION: This resin composition comprises (A) a rubber-modified tetrabromobisphenol A type epoxy (meth)acrylate prepared by reaction of (i) a tetrabromobisphenol A type epoxy resin, (ii) a straight chain polymer bearing chain terminal carboxyl groups prepared by copolymerization of a conjugated diene vinyl monomer and acrylonitrile and (iii) an unsaturated group-containing monocarboxylic acid, (B) a reactive monomer and (C) a photopolymerization initiator. In a preferred embodiment, the amount of the component A is 10-60 wt.%, the component B is 30-85 wt.% and the component C is 0.5-15 wt.% on the basis of 100 wt.% of the whole composition. |
