ADDITIVE FÜR PULVERLACKE

摘要

Copolymers containing fluoro groups and hydroxyl groups are used as additives in powder coating materials, by mixing the copolymers with powder coating resins. Use of copolymers containing fluoro groups and hydroxyl groups as additives in powder coating materials, comprises mixing the copolymers with powder coating resins. The copolymers comprise: (a) olefinically unsaturated monomers having 5-40C, with a hydroxyl group(s) and a free-radically polymerizable C=C bond; (b) alkyl esters of monoolefinically unsaturated monocarboxylic acids or dialkyl esters of olefinically unsaturated dicarboxylic acids or their mixtures, the alkyl radicals having 1-18C, and the carboxylic acids having 3-12C; and (c) (per)fluoroalkyl esters of the carboxylic acids, the (per)fluoroalkyl group having 2-20C.