Patent ID: 6441078
Filing Date: 2002-08-27
Classification: C09D

Abstract:
An aqueous powder clear coat dispersion comprising a powder clear coating dispersed in an aqueous phase, wherein the powder clear coat dispersion has a solid content of 20 to 60% by weight of particles having an average particle diameter (d50) of 0.1 to 10 &mgr;m, a binder selected from the group consisting of polyester resins, (meth)acrylic copolymers and polyurethane resins, and wherein the aqueous phase contains a silica compound selected from the group consisting of:(a) 0.2 to 2% by weight, based on the weight of the powder clear coating, of finely divided hydrophilic silicic acid with large BET-surface; (b) 0.1 to 1.5% by weight, based n the weight of the powder clear coating, of layered silicates; and (c) combinations thereof.