Patent ID: 6525161
Filing Date: 2003-02-25
Classification: C08G

Abstract:
A powder coating composition comprising a powdered solid ethylenically unsaturated material having a melting point from 60Â° to 120Â° C. and an average particle size from 10 to 250 &mgr;m which can melt and reflow prior to curing obtained by reacting in bulk in a molten state a polyisocyanate with an at least stoichiometric amount of an alcoholic component comprising: monohydric alcohol component with an ethylenic unsaturation derived from acrylic acid or methacrylic acid; saturated monohydric alcohol and a monomeric polyol, said monomeric polyol being present in an amount not more than 50% of the stoichiometric amount of hydroxyl groups required to react with the isocyanate groups of the polyisocyanate.