Polyimide prepolymer, polyimide resin from imide acid chloride a

Details Polyimide prepolymer, polyimide resin from imide acid chloride a Polyimide prepolymer, polyimide resin from imide acid chloride a

1978-12-04

1981-05-26

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

260 37N, 2603265FM, 2603265J, 4284735, 528 26, 528 27, 528 28, 528170, 528310, 528312, 528313, 528331, 528315, C08G 6926, C08G 7310

Patent

active

042699665

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: 3562223 (1971-02-01), Bargain et al.
patent: 3658764 (1972-04-01), Bargain et al.
patent: 3669930 (1972-06-01), Asahara et al.
patent: 3717615 (1973-02-01), Holub et al.
patent: 3738969 (1973-06-01), Holub et al.
patent: 3740378 (1973-06-01), Crivello

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