Patent ID: 6743834
Filing Date: 2004-06-01
Classification: C09D,Y10S,Y10T

Abstract:
An anionic electrodeposition coating composition comprising (a) about from 20 to 70% by weight of acrylic resin; (b) about from 5 to 40% by weight of emulsified polymer containing alkoxysilyl groups having a shell-core construction produced by two stage emulsion polymerization of unsaturated monomers, wherein about from 5 to 40% by weight of the unsaturated monomers used in the two stage emulsion polymerization contain alkoxysilyl groups, and the polymerization is carried out in the presence of water and emulsifier, and (c) about from 20 to 60% by weight of at least one crosslinking agent, and wherein in the second stage emulsion polymerization of unsaturated monomers, about from 20 to 90% by weight of the unsaturated monomers used in the second stage emulsion polymerization contain alkoxysilyl groups.