(METH)ACRYLATE RESIN, ACTIVE ENERGY RAY-CURABLE (METH)ACRYLATE RESIN COMPOSITION, RESIST UNDERLAYER FILM AND METHOD FOR PRODUCING (METH)ACRYLATE RESIN

摘要

Provided is a (meth)acrylate resin which can be used for forming an ultrafine wiring pattern as a result of having a low viscosity and low polarity. Specifically, the present invention is a (meth)acrylate resin obtained by reacting an unsaturated monocarboxylic acid with an intermediate reaction mixture obtained by reacting an epihalohydrin with a mixture of two or more types of compound selected from the group consisting of 1,2,3-trihydroxybenzene, 1,2,4-trihydroxybenzene and 1,3,5-trihydroxybenzene.