| abstract |
Solvent borne coating composition comprising an alkyd having at least 20 % by weight of vinylic building blocks and having an oil length below 65 %. The weight ratio non-vinylic : vinylic groups is between 1 : 1 and 4 : 1, preferably between 1.5 : 1 and 3 : 1. The vinylic groups include styrene and (meth)acrylate groups. The ratio of styrene : (meth)acrylate groups is between 0.5 : 1 and 4 : 1, preferably between 1.5 : 1 and 3: 1. The vinylic groups show low polarity. The Mw is below 10,000. The oil length is above 45 %. The alkyd according to the invention allows formulation of solvent borne coatings a volatile organic content below 300 g / I. |