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US 6,645,636 B2Granted
Condensation polymer containing esteralkylamide-acid groups
AssigneeDsm N.V.
InventorRudolfus A. T. M. Van Benthem
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Abstract
A condensation polymer, obtained through reaction of an alkanolamide and a cyclic anhydride to form a hydroxyalkylamide, followed by polycondensation of the hydroxyalkylamide, has at least two carboxylic acid end groups connected to an alkylamide groups via an ester linkage. The polymers may be used in powder paint compositions.
Claims16
A polyesteramide polymer obtained by polycondensation of an alkanolamine and a cyclic anhydride having at least two carboxylic end groups connected to an alkylamide group via an ester linkage.
Dependencies are inferred from the claim text.