Patent ID: 6566433
Filing Date: 2003-05-20
Classification: C09D

Abstract:
A process for forming a coating on a substrate, which comprises1) applying a layer of an aqueous dispersion to said substrate and 2) curing said layer to form said coating; wherein the aqueous dispersion comprises a powder composition dispersed in an aqueous medium in which the powder composition comprises components A) 15 to 30 wt. %, based on the weight of the powder composition, of a crosslinking agent comprising one or more melamine resins, B) 3 to 30 wt. %, based on the weight of the powder composition, of one or more polyhydric alcohols, C) 10 to 50 wt. %, based on the weight of the powder composition, of a phosphates compound selected from the group consisting of ammonium phosphate, ammonium polyphosphate and any mixtures thereof and D) 3 to 30 wt. %, based on the weigh of the powder composition, of a compound selected from the group consisting of chloroparaffins, melamine, melamine phosphates, melamine cyanurates, dicyanodiamide and any mixtures thereof; wherein the substrate is selected from the group consisting of plastics, concrete, steel and wood.