PHOTOCURABLE COMPOSITION, PROCESS FOR PRODUCING PHOTOCURABLERESIN, AND CROSSLINKED PRODUCT

摘要

A photocurable composition is provided which yields an excellent tack-free, hard cured produce without any addition of photoinitiators. A photocurable composition which is excellent in storage stability is also provided. The photocurable composition contains a resin having an acryloyl group and a chemical structure element selected from the group consisting of .beta.-diketone groups and .beta.-ketoester groups, wherein the .beta.-diketane group or the .beta.-ketoester group has a tetra-substituted carbon atom between two carbonyl groups, which is capable of generating one or two free radicals under photoirradiation, and the photocurable composition does not increase more than 25% in viscosity when heated at 60.degree.C for 5 days.