Patent ID: 8053519

Claim:
A solvent borne coating composition, having a volatile organic content of less than 300 g/l, and comprising an alkyd having vinylic building blocks, wherein the alkyd has an oil length of 45-65%, the alkyd has a weight average molecular weight, Mw, of less than 12,000, and a non-vinylic: vinylic group weight ratio between 1:1 and 4:1, said alkyd being further characterized in that the vinylic groups include styrene and (meth)acrylate groups, said styrene groups being styrene and/or substituted styrene, and wherein the ratio of styrene: (meth)acrylate groups is between 0.5:1 and 4:1, wherein the (meth)acrylate groups show low polarity, as identified by a solubility parameter, δ, of no more than 18 (J/m 3 ) 1/2 *10 −3 .