Patent ID: 8404787
Filing Date: 2013-03-26
Classification: C08G,C08L

Abstract:
1. A curable epoxy composition comprising: a) 30 to 80 percent by weight of an epoxy resin; b) 5 to 40 percent by weight of a compound comprising an elastomeric prepolymer residue selected from the group of a polyurethane, a polyurea and a polyurea polyurethane having isocyanate end groups, the isocyanate end groups of said prepolymer residue being capped by a monofunctional capping compound selected from the group consisting of secondary aliphatic amines, secondary cycloaliphatic amines, secondary aromatic amines, secondary heteroaromatic amines, secondary araliphatic amines, thiols, alkyl amides, and mixtures thereof, wherein the capping compound is bound to the end of the polymer chain of the elastomeric prepolymer in a manner such that the end to which it is bonded no longer has a reactive group; c) 5 to 30 percent by weight of a core shell rubber, a second epoxy resin modified with a copolymer based on a 1,3-diene and a polar, ethylenically unsaturated comonomer or a mixture thereof; and d) 1 to 10 percent by weight of a hardener.