PRIMER COMPOSITION OF AN ACRYLIC EPOXY ESTER GRAFT COPOLYMER A HIGH MOLECULAR WEIGHT EPOXY RESIN AND A HEAT REACTIVE CONDENSATE

摘要

A coating composition of film-forming constituents in an organic solvent wherein the film-forming constituents are (1) a graft copolymer having a backbone primarily of methyl methacrylate or styrene and side chains of an epoxy ester of an epoxy resin and dimer fatty acids terminated with monocarboxylic acid. (2) a high molecular weight epoxy hydroxy polyether resin; and (3) a heat reactive condensate such as an alkylated benzoguanamine formaldehyde, an alkylated urea formaldehyde or an alkylate melamine formaldehyde; the coating composition is a high quality primer for metal substrates and is used in the manufacture of automobile and truck bodies.