Patent ID: 6458885
Filing Date: 2002-10-01
Classification: C08G,C09D

Abstract:
A non-aqueous coating composition comprising as the primary curable, film-forming components:(A) 25 to 80 weight percent of an acrylic polyol having a number average molecular weight ranging from 1422 to 1756, which is the polymerization product prepared in the presence of a di-t-amyl derivative polymerization initiator of a combination of monomers comprising: (a) 1 to 10 percent by weight of a compound of the structure where R1=H or CH3, R3 is H or an alkyl group, R4 is an alkyl group, R5 is an alkyl group containing at least four carbon atoms; (b) 20 to 40 percent by weight hydroxy-containing vinyl monomers different from the monomer of (a); and (c) from 50 to 80 percent by weight of ethylenically unsaturated copolymerizable materials not containing hydroxyl groups; the percentages by weight of (a), (b), and (c) being based on the total solid resin weight of the monomers of (a), (b), and (c); and (B) 20 to 75 weight percent of a curing agent reactive with hydroxyl groups; wherein the weight percentages of (A) and (B) are based on the total resin solids weight of (A) plus (B); and (C) organic diluent.