Abstract: Powder coating compositions are disclosed that are suitable for low temperature curing yet provide coatings of desirable performance properties, equivalent to those previously attained only with coatings requiring a higher curing temperature. The powder coating compositions disclosed may be cured either by heat activated curing agents or by radiation activated curing agents.

Abstract: Methoxyorganosilicon compounds having an electron withdrawing group on the silicon atom in combination with tertiary methylamine catalysts having hydrophobic substituents can effectively, even at ambient temperatures, reduce water content in polyurethane coating compositions by catalytic transalkylation to produce methanol and a hydroxy group on the silicone compound without unduly adversely affecting the polyurethane coating.