COMPOSITION CURABLE BY BOTH FREE-RADICAL PHOTOCURING AND CATIONIC PHOTOCURING

摘要

A curable composition having a low viscosity and providing a satisfactory rubber cured article is provided. A composition curable by radical photo curing and cationic photo curing in combination, comprising the under-mentioned components (A), (B), (C) and (D) as essential components:
(A) a vinyl polymer having two or more acryloyl group or the like per molecule, the acryloyl groups or the like being present at one or more molecular ends;
(B) an epoxy compound and/or an oxetane compound;
(C) a radical photopolymerization initiator; and
(D) a cationic photopolymerization initiator.