Condensation polymer containing hydroxyalkylamide groups
AssigneeDsm N.V.
InventorsRudolfus A. T. M. Van Benthem, Johan Rietberg, Dirk A. W. Stanssens
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Abstract
The invention relates to a linear or branched polymer containing ester groups and at least one amide group in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of ≧800 g/mol. The invention also relates to an entirely or partly modified polymer. The polymer according to the invention can for example be obtained by reaction of a cyclic anhydride and an alkanolamine to form a β-hydroxyalkylamide, after which a polyesteramide is obtained through polycondensation. The polymers according to the invention can, for example, be used in thermosetting powder-paint compositions.
Claims11
A powder-paint binder composition containing a branched condensation polymer containing ester groups and at least one amide group in the backbone, having at least one β-alkyl substituted β-hydroxyalkylamide end group, having a β-hydroxylakylamide functionality between 2 and 250 and having a weight average molecular mass of ≧800 g/mol.
A toner composition comprising a branched condensation polymer containing ester groups and at least one amide group in the backbone, having at least one β-alkyl substituted β-hydroxyalkylamide end group, having a β-hydroxylakylamide functionality between 2 and 250 and having a weight average molecular mass of ≧800 g/mol.
Dependencies are inferred from the claim text.