Articulated para-ordered aromatic heterocyclic polymers containi

Details Articulated para-ordered aromatic heterocyclic polymers containi Articulated para-ordered aromatic heterocyclic polymers containi

1979-08-24

1980-10-21

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528172, 528179, 528207, 528208, 528210, 528211, C08G 7318, C08G 7322, C08G 7532

Patent

active

042295661

ABSTRACT:
Para-ordered aromatic heterocyclic polymers characterized by having p-benzbisoxazole, p-benzbisthiozole or p-benzbisimidazole units and containing diphenoxybenzene structures. The diphenoxybenzene structures function as "swivels" in the polymer chains, imparting flexibility thereto and making it possible to cast strong films from solutions of the polymers.

REFERENCES:
patent: 2904537 (1959-09-01), Brinker et al.
patent: 3260700 (1966-07-01), Rudner et al.
patent: 3306876 (1967-02-01), Kantor et al.
patent: 3620999 (1971-01-01), Marvel
patent: 3864310 (1975-02-01), Saferstein
patent: 4051108 (1977-09-01), Helminiak et al.

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