Thermally stable benzimidazonaphthyridine compositions

Details Thermally stable benzimidazonaphthyridine compositions Thermally stable benzimidazonaphthyridine compositions

1975-06-19

1977-05-03

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 49, 260 63N, 260 78TF, 260 7841, C08G 7320

Patent

active

040214095

ABSTRACT:
Thermally stable benzimidazonaphthyridine polymers are synthesized by the polycondensation of an aromatic tetraamine and 4,4',5,5'-tetracarboxy-8,8'-biquinoline dianhydride. The polymers are useful in high temperature applications such as in the fabrication of plastics, composites, fibrous materials, protective coatings and films.

REFERENCES:
patent: 3414543 (1968-12-01), Paufler
patent: 3681284 (1972-08-01), Grundschober et al.
patent: 3740410 (1973-06-01), Gerber
patent: 3743624 (1973-07-01), Arnold et al.
patent: 3792024 (1974-02-01), Saferstein
patent: 3798201 (1974-03-01), Saferstein et al.
patent: 3925311 (1975-12-01), Arnold et al.

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