| abstract |
(57) [Abstract] (Correction) [Problem] Energy ray curable type, which is useful for photopolymerizable resins such as solder resists and which has high sensitivity, stability upon solvent drying, excellent electrical characteristics, and plating resistance. Epoxy acrylate resin composition. SOLUTION: The epoxy acrylate resin obtained by reacting an epoxy resin having two or more epoxy groups in one molecule with an unsaturated monobasic acid is 0.4 per mole of hydroxyl group. To one or more high acid value acid pendant type epoxy acrylate resins (a) obtained by reacting 1 to 1.0 mol of polybasic acid anhydride, and an epoxy resin having two or more epoxy groups in one molecule Low acid value acid pendant type epoxy acrylate obtained by reacting less than 0.4 mol of dibasic acid anhydride per 1 mol of the hydroxyl group of the epoxy acrylate resin obtained by reacting the same with an unsaturated monobasic acid -Acid pendant type epoxy acrylate having a total acid value of 30 to 150 KOH-mg / g (per solid content), which comprises one or more kinds of resin (b) A resin composition containing a resin. |