Rigid-rod graft polymers and copolymers

Details Rigid-rod graft polymers and copolymers Rigid-rod graft polymers and copolymers

1991-12-06

1993-03-16

Foelak, Morton

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, 525435, C08L 7700, C08L 7706

Patent

active

051945193

ABSTRACT:
Fusible, rod-like, graft polymers and copolymers having repeating units of the formula: ##STR1## wherein x ranges from 0 to about 0.97, y is 1-x, Y is a poly(etherketone) (PEK) or a poly(etheretherketone) (PEEK), and wherein Ba is a benzobisimidazole or benzobisthiazole moiety are provided.
Also provided are methods for preparing the above polymers and copolymers, 2-(2,6-dimethylphenoxy)terephthalic acid and a method for preparing the latter.

REFERENCES:
patent: 4108835 (1978-08-01), Arnold et al.
patent: 4835246 (1989-05-01), Tsai et al.
patent: 4842924 (1989-06-01), Farris et al.
patent: 4845150 (1989-07-01), Kovak et al.
patent: 5128443 (1992-07-01), Arnold et al.
PCT WO89/07617 Maxdem Inc.

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