Wholly aromatic polyesters and preparation thereof

Details Wholly aromatic polyesters and preparation thereof Wholly aromatic polyesters and preparation thereof

1986-12-04

1988-03-01

Phynes, Lucille M.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528171, 528176, 528179, 528190, 528194, C08G 6302, C08G 6318

Patent

active

047287152

ABSTRACT:
Wholly aromatic polyesters which form a liquid-crystalline fiber-forming melt below 300.degree. C. and are composed of
(a) from 10 to 25 mol % of repeat units of the formula I ##STR1## (b) from 5 to 15 mol % of repeat units of the formula II ##STR2## (c) from 5 to 15 mol % of repeat units of the formula III ##STR3## (d) not less than 10 mol % of repeat units of the formula IV ##STR4## and (e) a molar amount corresponding to the total amount of (a), (b) and (c) of repeat units of the formula V ##STR5## the molar proportions of components a, b, c, d and e adding up to 100 mol % in each case, the preparation thereof and fibers, films, moldings and surface coatings prepared therefrom.

REFERENCES:
patent: 4093595 (1978-06-01), Elliott
patent: 4118372 (1978-10-01), Schaefgen
patent: 4375530 (1983-03-01), Hay et al.
patent: 4564669 (1986-01-01), Dicke et al.
patent: 4599397 (1986-07-01), Yoshimura et al.
patent: 4609720 (1986-09-01), Yoshimura et al.
patent: 4614789 (1986-09-01), Dicke et al.
patent: 4664972 (1987-05-01), Connolly

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