Patent ID: 6369145
Filing Date: 2002-04-09
Classification: C09D

Abstract:
In a powder coating composition comprising a polyester resin and triglycidyl isocyanurate, the improvement wherein said coating powder composition further consists essentially of between about 2 and about 10 parts per hundred resin by weight of a copolymer of ethylene and acrylic acid, said copolymer consisting essentially of between about 80 and about 95 wt % ethylene and between about 5 and 20 wt % acrylic acid; plus a zinc salt selected from the group consisting of zinc salts of fatty acids having between 8 and 25 carbon atoms, zinc salts of &agr;,&ggr;-diones having between 5 and 20 carbon atoms, and mixtures thereof, with the proviso that said zinc salt is not a zinc salt of 2-mercapto benzothiazole; said zinc salt providing zinc at between about 0.05 and about 0.30 phr, whereby reduced gloss is achieved.