Polyimide preparation from imido acyl halide

Details Polyimide preparation from imido acyl halide Polyimide preparation from imido acyl halide

1976-07-08

1980-12-16

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

260 304N, 260 328N, 260 37N, 4284735, 428318, 528 12, 528 26, 528170, 528312, 528321, 1563073, C08G 6926, C08G 7310

Patent

active

042398835

ABSTRACT:
Novel polyimide prepolymers are produced by reacting an unsaturated dicarboxylic acid imido acylchloride with a difunctional amine to produce the corresponding acid amide. Condensation of said reactants is preferably effected in solution in a low boiling solvent. The resulting prepolymer is hardened and completely polymerized by heating, preferably between about 80.degree. C. and about 400.degree. C., to yield a cross-linked, substantially infusible and insoluble polyimide resin and articles made therefrom.

REFERENCES:
patent: 3717615 (1973-02-01), Holub et al.

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