Patent ID: 6184281
Filing Date: 2001-02-06
Classification: C08L,C09D,Y02P

Abstract:
An aqueous dispersed protective coating composition containing an ionomeric binder, the iononmeric binder composition comprising by weight:(a) between 80% and 99.8% of an amine neutralized, carboxyl functional addition copolymer of emulsion copolymerized ethylenic unsaturated monomers in water of at least 5% carboxyl monomers, at least 10% hydrophobic monomers, with the balance being other ethylenic monomers, to produce a carboxyl functional emulsion copolymer having a number average molecular weight between about 5,000 and 10,000,000 and an Acid No. above about 25, where the carboxyl functional emulsion copolymer is neutralized with ammonia or a tertiary amine to produce a completely neutralized emulsion copolymer;(b) between 0.2% and 20% of an aqueous dispersed ammonium complex salt of zinc or zirconium as measured by zinc or zirconium metal;And where components (a) and (b) form a stabilized aqueous mixture but interract upon heat reacting an applied film of the coating composition to form a ionomeric clustering complex.