Coating composition for plastic substrates and coated plastic articles

摘要

A liquid coating composition, comprising (a) from about 5 to 100 percent of resin solids of a mixture of (i) a substantially saturated polyhydroxylated polydiene polymer, having terminal hydroxyl groups, and (ii) a chlorinated polyolefin, wherein the weight of the polydiene polymer is between about 5 and 95 percent of the total weight of the mixture of polyhydroxylated polydiene polymer and chlorinated polyolefin; (b) about 0 to about 95 percent by weight of resin solids of a film forming polymer selected from liquid and carrier-reducible film forming polymers; and (c) a carrier material. The liquid coating composition can be solvent-based or aqueous based and can additionally contain at least on pigment. The liquid coating composition can be coated onto plastic substrates to improve the adhesion of subsequently applied coatings and to substantially improve the solvent resistance, especially to gasoline, of the finally coated plastic part.