Polybenzoxazole from aryloxy-2,6-naphthalicdiacid

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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528183, C08G 7322

Patent

active

047629088

ABSTRACT:
A polymer having repeating units of the general formula ##STR1## wherein BB is a benzobisaxazole, benzobisthiazole or benzobisimidazole group and Y is a phenolic, pyridyl or phenoxyphenyl group.

REFERENCES:
patent: 3985763 (1976-10-01), Harnisch
patent: 4709006 (1987-11-01), Tsai et al.

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