ENERGY RAY-CURABLE EPOXY RESIN COMPOSITION HAVING EXCELLENT CURING PROPERTIES IN DEEP PORTIONS

摘要

Disclosed is an energy ray-curable epoxy resin composition wherein the problem of poor curing properties in deep portions has been solved, while maintaining high fixation accuracy. Specifically disclosed is an energy ray-curable epoxy resin composition containing an epoxy resin, a filler and a photoacid generator, wherein the difference between the refractive index of the filler and the refractive index of the energy ray-curable epoxy resin composition excluding the filler is within ±0.02.