Preparation of aromatic polyimides from CO, primary diamine and

Details Preparation of aromatic polyimides from CO, primary diamine and Preparation of aromatic polyimides from CO, primary diamine and

1992-02-25

1993-06-01

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528 15, 528 25, 528 33, 528125, 528126, 528128, 528168, 528170, 528220, 528225, 528229, 528335, 528351, 528353, 528391, 528422, C08G 6900

Patent

active

052161188

ABSTRACT:
A method for preparing polyimides comprising reacting carbon monoxide, a primary diamine and a reactant selected from the group consisting of bis(o-iodoaromatic ester)s and bis(o-bromoaromatic ester)s, in the presence of solvent and catalyst, said catalyst being a compound of a metal seIected from the group consisting of platinum, palladium and nickel.

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patent: 4933467 (1990-06-01), Perry et al.
patent: 4933468 (1990-06-01), Perry et al.
patent: 5104971 (1992-04-01), Perry et al.
Yoneyama, M. et al., "Novel Synthesis of Aromatic Polyamides by Pd-Catalyzed Polycondensation of Aromatic Dibromides, Aromatic Diamines, and Carbon Monoxide", (1988), Macromolecules, vol. 21, pp. 1908-1911.

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