Patent ID: 6500548
Filing Date: 2002-12-31
Classification: C08G,Y10S,Y10T

Abstract:
A powder coating material with crosslinkers comprising hydroxyalkylamides and blocked polyisocyanates, comprising:A) from 20 to 99% by weight of at least one acidic polymer; B) from 1 to 25% by weight of at least one &bgr;-hydroxyalkylamide; C) from 0.05 to 10% by weight of at least one blocked nonaromatic polyisocyanate having an NCO functionality &gE;2; D) from 0 to 50% by weight of at least one of a pigment, an inorganic filler or a mixture thereof E) from 0 to 5% by weight of at least one adjuvant or auxiliary, wherein said acidic polymer A) is (1) at least one polyester resin having a glass transition temperature in the range from 30 to 85Â° C. and an acid number of from greater than 20, to 80 mg KOH/g, or (2) at least one acrylate resin having an acid number in the range from greater than 20, to 250 mg KOH/g and a melting point of from 60 to 160Â° C., or a mixture of (1) and (2).