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EP0076483A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Thermoplastic elastomeric polyetheresterimides

Assignee: EIDP Inc
•
Filing: 1982-10-01
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Granted: —
•
Expires: 2002-10-01
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Abstract

Abstract Thermoplastic elastomeric polyetheresterimides comprising a multiplicity of long chain ester imide units represented by the formula and short chain esterimide units represented by the formula where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide) glycol having a number average molecular weight of about 400-4000; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 300, and Q is a divalent radical remaining after removal of an amino group and a carboxyl group from a aliphatic primary amino acid having a molecular weight of less than 250; with the proviso that from about 2 to 10 of said short chain esterimide units are present for each of said long chain esterimide units.

Inventors

  • 👤 James Richard Wolfe, Jr.

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 23:41
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/16

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 132 words
A thermoplastic elastomeric polyetheresterimide comprising a multiplicity of long chain esterimide units being represented by the formula and short chain esterimide units being represented by the formula where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide)glycol having a number average molecular weight of about 400-4000; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 300 and Q is a divalent radical remaining after removal of an amino group and a carboxyl group from an aliphatic primary amino acid having a molecular weight of less than 250; with the proviso that from about 2 to 10 of said short chain esterimide units are present for each of said long chain esterimide units.
Claim 2
Dependent Claim 132 words
A thermoplastic elastomeric polyetheresterimide comprising a multiplicity of long chain esterimide units being represented by the formula and short chain esterimide units being represented by the formula where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide)glycol having a number average molecular weight of about 400-4000; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 300 and Q is a divalent radical remaining after removal of an amino group and a carboxyl group from an aliphatic primary amino acid having a molecular weight of less than 250; with the proviso that from about 2 to 10 of said short chain esterimide units are present for each of said long chain esterimide units.
Claim 3
Dependent Claim 16 words
A polyetheresterimide of claim 1 wherein the divalent radical Q is derived from glycine or β-alanine.
Claim 4
Dependent Claim 21 words
A polyetheresterimide of claims 1 or 2 'wherein the divalent radical D is derived from ethylene glycol, 1,2-propylene glycol or 1,4-butanediol.
Claim 5
Dependent Claim 43 words
A polyetheresterimide of claims 1 or 2 wherein the divalent radical G is derived from poly(tetramethylene oxide) glycol having a molecular weight of 600-2200 or ethylene oxide-capped poly(propylene oxide) glycol having a molecular weight of 600-2800 and containing 5-35% by weight ethylene oxide.
Claim 6
Dependent Claim 41 words
A polyetheresterimide of claim 1 wherein the divalent radical Q is derived from glycine, the divalent radical D is derived from ethylene glycol and the divalent radical G is derived from poly(tetramethylene oxide) glycol having a number molecular weight of 600-2200.
Claim 7
Dependent Claim 57 words
Process for the preparation of the polyetheresterimide of claims 1 or 5 by melt condensation of a mixture of trimellitic anhydride, an aliphatic primary amino acid, a poly(alkylene oxide) glycol and a molar excess of a low molecular weight diol, said trimellitic anhydride and said amino acid being present in a molar ratio of 1.0:0.85 to 1.0:1.15.

References Cited (Backward Citations)

US4018742A Cited

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