Anaerobically curing adhesive sealing composition.

摘要

An anaerobically curing adhesive sealing composition comprising (A) a mono(meth)acrylate monomer represented by formula (I) wherein R1 represents a hydrogen atom or a methyl group; and R2 represents and (B) a (meth)acrylate prepolymer having a urethane structure in the main chain thereof and having an average molecular weight of 10,000 or more. The sealing composition exhibits, upon curing, excellent elasticity and properties to follow an adherend while retaining excellent resistance to oil and heat as possessed by acrylate type reactive sealing compositions.