Patent ID: 6756459
Filing Date: 2004-06-29
Classification: C08F,C08L,C09D

Abstract:
An aqueous coating composition comprising an aqueous emulsion copolymer, said copolymer comprising as polymerized units:29-34% styrene, 42-45% 2-ethylhexyl acrylate, 19-20% acrylonitrile, 1-3% methyl methacrylate, 2.5-3% phosphoethyl methacrylate and 0-0.2% allyl methacrylate; wherein the aqueous coating composition exhibits either no greater than 20% rust or a blister rating no greater than â€œMâ€  after at least 7 days of exposure to salt spray according to ASTM B-117-97 when coated onto a corrosion susceptible substrate.