Patent ID: 6624239
Filing Date: 2003-09-23
Classification: C08G,Y10T

Abstract:
A powder coating slurry comprising at least one hydroxyl-containing binder A, at least one polyisocyanate crosslinking agent B, and water, wherein1. the at least one hydroxyl-containing binder A and the at least one polyisocyanate B have been homogenized such that not less than 30% by weight of the at least one polyisocyanate B is present in solution or dispersion in the particles comprising the at least one hydroxyl-containing binder A, and 2. the particles of the at least one crosslinking agent B, which may still be present in the aqueous phase, and the particles comprising the at least one hydroxyl-containing binder A and the at least one crosslinking agent B, are stabilized, by way of the isocyanate groups present on their surface, by means of a deactivator added to the aqueous phase wherein the at least one hydroxyl-containing binder A comprises a polyhydroxypolyacrylate, wherein at least 50% of the OH groups of the polyhydroxypolyacrylate are attached to secondary or tertiary carbon atoms.