CHLORINE-FREE, ZERO VOC, WATERBORNE ADHESION PROMOTER FOR POLYOLEFINIC SUBSTRATES

摘要

A zero VOC aqueous coating composition comprising a halogenfree propylene/ .alpha.-olefin copolymer having an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride grafted thereon, a base, and a water-dispersible resin containing at least two epoxy groups is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.