Patent ID: 6100349
Filing Date: 2000-08-08
Classification: C08K,C09D,Y10S

Abstract:
A thermosetting powder coating composition comprising a mixture of particles reactive towards one another and a catalyst, with a portion of the reactive particles comprising a polymer and an epoxy the polymer reacting with the epoxy to form ester forming and/or ether forming groups, while another portion of the reactive particles comprises an at least bifunctional cross-linking agent which contains 2-oxo-1,3-dioxolan-4-yl groups, hereinafter referred to as cyclocarbonate groups, and, optionally, functional groups that are made up almost exclusively of epoxy groups, wherein both the polymer reacting with epoxy to form ester forming and/or ether forming groups and the cross-linking agent are obtained by a non-vinylic addition and/or polymerisation process.