Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1981-10-02
1983-02-01
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
525438, 528289, 528291, 528296, 528301, C08G 6908, C08G 6944
Patent
active
043716938
ABSTRACT:
Thermoplastic elastomeric polyetheresterimides comprising a multiplicity of long chain ester imide units represented by the formula ##STR1## and short chain esterimide units represented by the formula ##STR2## 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.
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European Polymer Journal, vol. 16, pp. 909-916, "Synthesis and Story of Various Reactive Oligomers and Poly(Ester-Imide-Ether)s", Oct. 12, 1979, P. Honore, et al.
E. I. Du Pont de Nemours and Company
Phynes Lucille M.
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