Process for preparing polyimide having excellent high temperatur

Details Process for preparing polyimide having excellent high temperatur Process for preparing polyimide having excellent high temperatur

1989-06-26

1991-08-20

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528128, 528229, 528350, 528353, C08G 802, C08G 1200, C08G 1404, C08G 6926

Patent

active

050415204

ABSTRACT:
Disclosed is a process for preparing a polyimide by reacting certain reactants. The reactants include an aromatic diamine which is 3,3'-diaminobenzophenone and/or bis(3-aminophenyl)sulfone, a tetrocarboxylic dianhydride and a dicarboxylic anhydride. A thermally stable polyimide can be obtained which displays excellent processability.

REFERENCES:
patent: 3528950 (1970-09-01), Lubowitz
patent: 4742153 (1988-05-01), Sutton, Jr.

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