Patent ID: 6890997

Claim:
A powder composition, comprising: one or more than one free radical curable epoxy resin having at least two ethylenically unsaturated groups per molecule and one or more than one second free radical curable resin other than a free radical curable unsaturated polyester resin, or, alternatively, one or more than one free radical curable unsaturated polyester resin in combination with one or more than one free radical curable epoxy resin or free radical curable epoxy polymer either having at least two ethylenically unsaturated groups per molecule one or more than one wax or matting agent; one or more than one free radical photoinitiator; one or more than one crystalline crosslinker resin having at least two free radical curable sites; and, optionally, a thermal cure catalyst, wherein the coating powder has an average particle size of 5 to 25 microns.