Block polyetherimide ester polymers
AssigneeGeneral Electric Company
InventorsRussell J. McCready, John A. Tyrell
Life of this patent
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Abstract
Thermoplastic elastomeric polyetherimide ester block copolymers comprising at least one polyetherimide ester recurring structural unit represented by the formula ##STR1## and at least one ester recurring structural unit represented by the formula ##STR2## wherein: G is the divalent radical remaining after the removal of the amino groups of a high molecular weight poly(oxy alkylene)diamine; R.sup.1 is the divalent radical remaining after the removal of the carboxylic groups of a dicarboxylic acid; R.sup.2 is the divalent radical remaining after the removal of the hydroxyl groups of a diol; y is a number having an average value of from 2 to about 200; and x is a number having an average value of from 2 to about 40.
Claims28
A thermoplastic elastomeric polyetherimide ester block copolymer comprising at least one polyetherimide ester recurring structural unit represented by the formula ##STR7## and at least one ester recurring structural unit represented by the formula ##STR8## wherein:
- G is a divalent radical remaining after the removal of the amino groups of a high molecular weight alkylene ether diamine;
- R.sup.1 is the divalent radical remaining after the removal of the carboxylic groups of a dicarboxylic acid;
- R.sup.2 is the divalent radical remaining after the removal of the hydroxyl groups of a diol;
- R is a trivalent organic radical;
- y is a number having an average value of from 2 to about 200;
- and
- x is a number having an average value of from 2 to about 40.
A thermoplastic elastomeric polyetherimide ester block copolymer comprised of the reaction products of at least one polyetherimide ester prepolymer represented by the formula ##STR9## and at least one ester prepolymer represented by the formula ##STR10## wherein:
- G is a divalent radical remaining after the removal of the amino groups of a high molecular weight poly(oxy alkylene)diamine
- R.sup.1 is the divalent radical remaining after the removal of the carboxylic groups of a dicarboxylic acid;
- R.sup.2 is the divalent radical remaining after the removal of the hydroxyl groups of a diol;
- R is a trivalent organic radical;
- x is a number having an average value of from 2 to about 40;
- and
- y is a number having an average value of from 2 to about 200.
Dependencies are inferred from the claim text.