Patent ID: 6106905
Filing Date: 2000-08-22
Classification: C09D

Abstract:
A method of coating articles with powder coatings which are applied to the surface of the substrate to be coated, and which are then melted and are crosslinked by UV irradiation, wherein the powder coatings employed are copolymers of the following components(a) at least one monomer of the general formula (I) ##STR12## where R.sup.1 =H or CH.sub.3 and R.sup.2 =H, C.sub.n H.sub.2n+1 where n=from 1 to 30, oris an alicyclic, araliphatic or heterocyclic radical, hydroxyalkyl, alkoxyalkyl, glycidyl or aminoalkyl, or of the general formula (II) ##STR13## where R.sup.1 =H or CH.sub.3 and where R.sup.3 and R.sup.4 may be identical to or different from one another and are H, CH.sub.2 OH, C.sub.n H.sub.2n+1 where n=1 to 30 or CH.sub.2 OR.sup.5 where R.sup.5 =C.sub.m H.sub.2m+1 where m=1 to 12, and(b) at least one copolymerizable, ethylenically unsaturated organic compound of the general formula (A) ##STR14## where R' and R"" can be identical to or different from one another and are H, C.sub.p H.sub.2p+1 where p=1 to 6, cycloalkyl, aryl or aralkyl and R'"" is acryloyl, methacryloyl, ethacryloyl or cinnamoyl, or is a radical derived from maleic acid, fumaric acid or crotonic acid,and wherein a photoinitiator or photoinitiator system is present in the powder coating.