Patent ID: 6673875
Filing Date: 2004-01-06
Classification: C08F,C09J

Abstract:
An anaerobic adhesive composition, the reaction products of which demonstrate enhanced toughness and resistance to crack propagation, comprising:(a) at least one (meth)acrylate monomer component; (b) at least one (meth)acrylate-terminated monomeric prepolymer component comprising polymer segments which are the reaction product of (i) an acrylonitrile/butadiene copolymer polyol or polyamine, with (ii) the molar excess of a reaction product of an aromatic or cycloaliphatic polyol with an aromatic or a cycloaliphatic polyisocyanate; and (c) at least one (meth)acrylate-terminated monomeric prepolymer component comprising the reaction product of (i) an organic polyisocyanate and (ii) a (meth)acrylate ester containing an active hydrogen.