Rigid rod aromatic benthiazole heterocyclic copolymer

Details Rigid rod aromatic benthiazole heterocyclic copolymer Rigid rod aromatic benthiazole heterocyclic copolymer

1988-07-29

1990-02-13

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528176, 528179, 528183, 528342, 528348, C08G 7532

Patent

active

049008064

ABSTRACT:
There are provided copolymers having repeating units of the formula ##STR1## wherein R.sub.1 is --H or ##STR2## wherein X is --S--, --O-- or --NH--; and wherein Y ranges from about 0.02 to 0.20 and z is 1.0-y.

REFERENCES:
patent: 4108835 (1978-08-01), Arnold et al.
patent: 4131748 (1978-12-01), Arnold et al.
patent: 4533692 (1985-08-01), Wolfe et al.
patent: 4533693 (1985-08-01), Wolfe et al.

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