Patent ID: 6555597
Filing Date: 2003-04-29
Classification: C08G

Abstract:
A pulverent binder for a powder coating composition which contains oligo- and polyurethanes having (meth)acryloyl groups, is.curable by means of high energy radiation and contains less than 1 wt. % of organic solvents wherein the binder comprises 10 to 95 wt. %, based on the total weight of oligo- and polyurethanes having (meth)acryloyl groups, of the reaction product ofA) a monoisocyanate or diisocyanate having 4 to 20 carbon atoms with C) a monohydroxyalkyl (meth)acrylate having 2 to 12 carbons in the alkyl chain and 5 to 90 wt. %, based on the total weight of oligo- and polyurethanes having (meth)acryloyl groups, of the reaction product ofB) a diisocyanate and/or a polyisocyanate that may be the same as A) or different than A) with D) at least one alcohol having (meth)acryloyl groups that may be the same as C) or different than C) and E) a compound which is free of (meth)acryloyl groups and contains two or more isocyanate-reactive groups.