Patent ID: 6458898
Filing Date: 2002-10-01
Classification: C08G,C09D,Y10T

Abstract:
A two-component polyurethane coating composition, which is suitable for the production of a flexible coating on plastic moldings, wherein the binder comprises one or more lacquer polyisocyanates and a polyol component containing one or more polyester polyols which have a hydroxyl number of 80 to 250 and are the reaction products of a) 52 to 60 mol-% of a polyol component comprisingi) 5 to 50 mol-% of one or more dihydric aliphatic alcohols having at least 2 carbon atoms other than neopentyl glycol, ii) 5 to 40 mol-% of one or more at least trihydric aliphatic alcohols having at least 3 carbon atoms, iii) 0 to 9 mol-% of one or more diols containing cycloaliphatic units and iv) 20 to 90 mol-% of neopentyl glycol, and b) 40 to 48 mol-% of a dicarboxylic acid component comprising v) 0 to 49.9% by weight of one or more aliphatic saturated dicarboxylic acids or dicarboxylic anhydrides containing at least two carbon atoms and vi) 50.1 to 100 mol-% of one or more aliphatic unsaturated dicarboxylic acids or dicarboxylic anhydrides containing at least 4 carbon atoms, wherein the percentages set forth in a) and b) add up to 100.