Novel polybenzimidazolone polymers based hexafluoro aromatic tet

Details Novel polybenzimidazolone polymers based hexafluoro aromatic tet Novel polybenzimidazolone polymers based hexafluoro aromatic tet

1990-04-06

1991-12-24

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

050754190

ABSTRACT:
This invention discloses new polybenzimidazolone polymers produced by the reaction of a hexafluoro aromatic tetraamine with a dianhydride reactant. These hexafluoro polybenzimidazolone polymers based on an aromatic hexafluoro tetraamine 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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