Patent ID: 7629407

Claim:
A process for preparing a pigmented powder coating suspension (pigmented powder slurry) by melt emulsification comprising (1) mixing at least two liquid components said components comprising a binder melt and a crosslinking agent melt, in a static mixer to give a liquid mixture, (2) emulsifying the liquid mixture in an aqueous medium in a dispersing unit to give an aqueous emulsion of liquid particles, and (3) cooling the emulsion so that a suspension of dimensionally stable particles is formed, wherein said aqueous medium comprises a suspension of at least one pigment and wherein the binder and crosslinker are solid at room temperature and the melt of each is obtained by heating said binder and crosslinker to temperatures between 50° C. and 250° C. and said coating is curable by one of physically, thermally, or with actinic radiation, or thermally and with actinic radiation and upon curing said coating provides corrosion resistance, adhesion and absorption of mechanical energy.