Patent ID: 6313234
Filing Date: 2001-11-06
Classification: C09D,Y10S

Abstract:
A power coating system, comprising:at least one linear carboxyl-functional polyester binder resin consisting offrom 0.1 to 10 mol-parts of isophthalic acid andat least 90 mol-parts of at least a further dicarboxylic acid selected from the group consisting of aromatic dicarboxylic acids with 8 to 16 C-atoms, aliphatic dicarboxylic acids with 6 to 22 C-atoms and cyclo-aliphatic dicarboxylic acids with 8 to 16 C-atoms, andat least 50 mol-parts of at least one branched aliphatic diol with 4 to 12 C-atoms, andmaximally 50 mol-parts of at least one linear aliphatic diol with 2 to 22 C-atoms and/or at least one cyclo-aliphatic diol with 6 to 16 C-atomsas the binder resin, anda .beta.-hydroxy alkyl amide cross-linking agent, which together form a powder coating system providing powoder coatings which resist physical aging.