(Meth) acrylamide-based urethane oligomer and an active energy ray-curable resin composition containing the same

摘要

[PROBLEMS] To provide a (meth) acrylamide-based urethane oligomer which is excellent in compatibility with an organic solvent, a general acrylic monomer or oligomer, has high hardenability to an active energy ray and has low hardening shrinkability, An active energy ray curable resin composition excellent in curability and having low curing shrinkability, and a molded product thereof. (Meth) acrylamide-based urethane oligomer having a (meth) acrylamide group at a terminal or a side chain and having a curing shrinkage of 5% or less by using an organic solvent, compatibility with a general acrylic monomer or an oligomer It is possible to prepare an active energy ray curable resin composition which is excellent in curability and has high curability and excellent adhesion, durability, moisture resistance, and shrink resistance including the curable urethane oligomer.