Thermotropic aromatic polyester which is melt-processable at low

Details Thermotropic aromatic polyester which is melt-processable at low Thermotropic aromatic polyester which is melt-processable at low

1990-09-10

1992-06-02

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, 528171, 528173, 528176, 528194, C08G 6302, C08G 6300, C08G 6318

Patent

active

051187825

ABSTRACT:
A thermotropic aromatic polyester comprising (a) an aromatic dicarbonyl ingredient comprising recurring aromatic units of the formulae (I) and/or (II): ##STR1## and, optionally, other recurring aromatic dicarbonyl units, (b) an aromatic dioxy ingredient comprising recurring aromatic units of the formula (III) ##STR2## wherein R.dbd.--H, C.sub.1-8 alkyl, aryl or Halogen atom, and optionally, (c) an aromatic oxycarbonyl ingredient comprising recurring aromatic oxycarbonyl units, of, for example, the formula (IV): ##STR3##

REFERENCES:
patent: 4608429 (1986-08-01), Rogers et al.

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