Wholly aromatic copolyester

Details Wholly aromatic copolyester Wholly aromatic copolyester

1990-05-18

1991-08-06

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, C08G 6302, C08G 6318, C08G 6318

Patent

active

050379402

ABSTRACT:
A wholly aromatic copolyester, comprising; the structural units I, II, and III represented by the following formulas, ##STR1## wherein in the structural unit I, the two carbonyl groups are present on the benzene ring at the meta- or para- position to each other and

REFERENCES:
patent: 4614790 (1986-09-01), Hutchings et al.
patent: 4614791 (1986-09-01), Hutchings et al.

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