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

摘要

[Task] A (meth)acrylamide urethane oligomer having excellent compatibility with organic solvents, general-purpose acrylic monomers and oligomers, and having high curing properties against active energy rays and low curing shrinkage, and adhesion, moisture resistance and surface containing them It is an object to provide an active energy ray-curable resin composition having excellent curability and low curing and shrinkage, and a molded article thereof. [Solution] Compatibility with organic solvents, general-purpose acrylic monomers and oligomers by using a (meth)acrylamide urethane oligomer having a (meth)acrylamide group in the terminal or side chain and having a cure shrinkage of 5% or less This excellent, highly curable urethane oligomer and an active energy ray-curable resin composition containing the same and excellent in adhesion, tack resistance, moisture resistance, and shrinkage resistance can be prepared.