Novel hexafluoro polybenzimidazolone polymers

Details Novel hexafluoro polybenzimidazolone polymers Novel hexafluoro polybenzimidazolone polymers

1990-03-15

1991-12-31

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528125, 528128, 528183, 528186, 528337, 528341, 528342, 528344, C08G 6942, C08G 6926, C08G 802, C08G 6300

Patent

active

050773836

ABSTRACT:
New polybenzimidazolone polymers produced from the reaction of an aromatic tetraamine with a hexafluoro dianhydride. These hexafluoro polybenzimidazolone polymers based on an aromatic hexafluoro dianhydrides show improved solubility, easy processability, low moisture uptake, high thermal stability, resistance to solvent and other improvements over conventional polybenzimidazolone polymers.

REFERENCES:
patent: 3509108 (1970-04-01), Prince
patent: 3686149 (1972-08-01), Ohfuji
patent: 4312976 (1982-01-01), Choe

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