Patent ID: 6841588

Claim:
An ultraviolet light curable resin composition comprising an aqueous solution of an amine salt prepolymer formed by reaction in an aqueous mixture between an unsaturated carboxylic acid and an oligomer having at least one amine group selected from the group consisting of urea formaldehyde resins, melamine formaldehyde resins, amine-polyisocyanate adducts, Michael adducts of a secondary amine and acrylate and/or methacrylate compounds and epoxy-amine adducts formed between a secondary amine and epoxy of formula: wherein n is from 0 to 10 and A comprises a diradical selected from the group consisting of aromatic, substituted aromatic and the diradical of formula II: wherein R is an alkylene group of 1 to 4 carbon atoms.