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Polyesteramide

  • US 4,663,428 A
  • Filed: 08/20/1985
  • Issued: 05/05/1987
  • Est. Priority Date: 12/27/1983
  • Status: Expired due to Fees
First Claim
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1. A polyesteramide obtained by reacting(1) at least one polyamide-forming compound selected from the group consisting of aminocarboxylic acids having from 6 to 12 carbon atoms, lactams having from 6 to 12 carbon atoms and nylon salts prepared by reacting a dicarboxylic acid having from 4 to 12 carbon atoms with a diamine having 4 to 12 carbon atoms;

  • (2) a dicarboxylic acid having from 4 to 54 carbon atoms, and(3) a reactant selected from the group consisting of(a) polycaprolactonediols having an average molecular weight of from 200 to 2,500,(b) polycaprolactonediols having an average molecular weight of from 4,500 to 10,000, and(c) a mixture of from 70 to 99.9 wt. % of a polycaprolactonediol having an average molecular weight of from 200 to 10,000, and 0.1 to 30 wt. % of a polycaprolactone polyol having an average molecular weight of from 200 to 10,000 and having at least three functional groups in the molecule,under esterification and polycondensation reaction conditions effective to produce the polyesteramide and wherein during the polycondensation reaction, the amounts of carboxyl groups, amino groups and hydroxyl groups supplied by (1), (2) and (3) satisfy the reaction ##EQU2##

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