Highly pigmentable, liquid coating compositions

Claim 1

In a liquid coating composition containing 0-25% solvent and a binder consisting essentially of A. 45-10% by weight of an aminoplast, a low-molecular weight precursor thereof, or a mixture thereof; and B. 55-90% by weight of a polyester, or mixture thereof, whose end groups are predominantly hydroxy prepared by condensing an alcohol component consisting of: I.1 0- 30 molar percent of one or more aliphatic polyols having 3 or 4 hydroxy groups and 3-6 carbon atoms, and I.2 100-70 molar percent of a mixture of ethylene glycol and 1,2-propanediol, with an acid component whose predominant acid is hexahydroterephthalic acid; or a binder which is the condensation product of said aminoplast component, or the starting materials for the production thereof, with said polyester component, the improvement wherein (i) the polyester or mixture of polyesters of component (B) have a degree of condensation of between 2.5 and 10.5 and an average molecular weight of up to 1,000, and the (ii) the mixture of ethylene glycol and 1,2-propanediol consists of 33-90 molar percent of ethylene glycol and 67-10 molar percent of 1,2-propanediol, and (iii) the acid component mixture consists essentially of at least 80 molar percent of hexahydroterephthalic acid, one or more derivatives thereof, or a mixture thereof.