Thermoplastic wholly aromatic copolyimide ester and process for

Details Thermoplastic wholly aromatic copolyimide ester and process for Thermoplastic wholly aromatic copolyimide ester and process for

1989-05-16

1991-03-26

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528210, 528220, 528289, 528322, C08C 802, C08G 7316

Patent

active

050030302

ABSTRACT:
A thermoplastic wholly aromatic copolyimide ester consisting essentially of the recurring unit (I) represented by the following formula: ##STR1## the recurring unit (II) represented by the following general formula: ##STR2## wherein n is an integer of 0 or 1; the recurring unit (III) represented by the following formula: ##STR3## wherein the two carbonyl groups are present at para position or meta position of the benzene nucleus to each other; and the recurring units (IV 1) or (IV 2) represented respectively by the following formulas: ##STR4## wherein --Q-- is --O-- or --CO--

REFERENCES:
patent: 3542731 (1970-01-01), Culbertson
patent: 4161470 (1979-07-01), Calundann
patent: 4176223 (1979-11-01), Irwin
patent: 4383105 (1983-05-01), Irwin

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