Abstract: A liquid coating composition comprises the following ingredients A, B and C dissolved in the following weight proportions in an organic solvent:A. A non-oxidizing oil-free cross-linking alkyl resin containing free carboxylic acid groups, 20-60%,B. An alkylated amino-formaldehyde resin, 15-60%C. A vinyl chloride/vinyl acetate copolymer which contains free primary hydroxyl groups, free carboxylic acid groups or oxirane groups, 5-50%The composition is particularly suitable for application to flexible PVC sheet, and is heat-curable to a film whose adhesion to such sheet does not seriously deteriorate on aging.

Abstract: A powder coating composition which comprises a carboxyl terminated polyester resin having a carboxyl functionality of at least 2, an epoxy resin which is at least difunctional with respect to epoxy groups and zinc oxide. The amount of zinc oxide is at least 1% by weight of the total weight of the resins, and the amounts of resins are such that the ratio of functional epoxy groups to carboxyl groups on a chemical equivalent basis is in the range 0.5:1.0 up to 3.0:1.0.