Patent ID: 7473442

Claim:
A method of coating a plastic substrate, comprising: (a) mixing together a first component of a coating composition and a second component of a coating composition to form a mixture thereof, wherein (1) the first component comprises an aqueous dispersion comprising: (i) an aliphatic polycarbonate-polyurethane polymer; and (ii) an acrylic polyol having a number average molecular weight of 500 to 4,000; and (2) the second component comprises a material having functional groups reactive with the functional groups of the acrylic polyol and/or the polycarbonate-polyurethane polymer; (b) applying the mixture to the plastic substrate; and (c) allowing the mixture to coalesce to form a substantially continuous film on the substrate, wherein the plastic substrate is constructed of polyvinyl chloride, acrylonitrile butadiene styrene, and/or polycarbonate.