Preparation of linear cyclic polyimides from latices

Details Preparation of linear cyclic polyimides from latices Preparation of linear cyclic polyimides from latices

1977-06-09

1979-10-02

Anderson, Harold D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

260 8, 260 17R, 260 174CL, 260 296RW, 260 296H, 260 296WB, 260 296HN, 525329, 525378, 525379, C08F 832

Patent

active

041699246

ABSTRACT:
Linear cyclic polyimides are prepared by reacting a latex prepolymer with ammonia, an organic primary amine, hydroxylamine or a mixture thereof, at a temperature between 50.degree. C. and 300.degree. C. The prepolymer contains reactive functional groups, such as carboxyl, amide, alkyl ester and nitrile. The linear cyclic polyimides are thermoplastic materials.

REFERENCES:
patent: 3441545 (1969-04-01), Blatz et al.
patent: 3634372 (1972-01-01), McFadden
patent: 3647731 (1972-03-01), Clough
patent: 3753965 (1973-08-01), Looney et al.
patent: 3776976 (1973-12-01), Volker et al.
patent: 3850898 (1974-11-01), Ide et al.
patent: 3897404 (1975-07-01), Korte et al.

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