Patent ID: 8524837

Claim:
A powder-lacquer composition, comprising: A) at least one carboxylate-group-comprising polymer having an acid number of 5 to 250 mg KOH/g and a glass transition temperature T g higher than 40° C.; and B) at least one β-hydroxyalkylamide having two or three or four β-hydroxyalkylamide groups per molecule of formula (I) wherein R 1 and R 2 , independently of one another denote the same or different radicals, selected from the group consisting of an alkyl radical, a cycloalkyl radical, an aryl radical, an aralkyl radical, and an alkenyl radical, having 1-24 carbon atoms, optionally comprising at least one member selected from the group consisting of a heteroatom and a functional group, or R 1 is hydrogen, or R 2 is and A is at least one member selected from the group consisting of wherein R 3 independently of one another denote the same or different radicals, selected from the group consisting of hydrogen, an alkyl radical, a cycloalkyl radical, an aryl radical, an aralkyl radical, and an alkenyl radical, having 1-24 carbon atoms, optionally comprising at least one member selected from the group consisting of a heteroatom and a functional group, and wherein two or more R 3 substituents are optionally linked to one another to form rings; wherein the β-hydroxyalkylamide exists in solid form below 150° C.; C) optionally, at least one member selected from the group consisting of a processing aid and an additive; wherein a ratio of β-hydroxyalkylamide groups to carboxylate groups ranges between 0.5:1 and 1.5:1, and wherein component (B) has two endothermic peaks according to DSC analysis (differential scanning calorimetry).