Amide-imide polymers

Details Amide-imide polymers Amide-imide polymers

1975-04-11

1980-07-22

Lee, Lester L.

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

Synthetic resins

From ketone or ketene reactant

264204, 264205, 428474, 528170, 528179, 528183, 528188, 528189, 528229, 528322, 528336, 528341, C08G 7311

Patent

active

042140714

ABSTRACT:
Amide-imide polymers formable in deep section and prepared by the condensation reaction of at least one of a diacid halide or a polyanhydride or equivalent, and a diamine containing at least one imide linkage. Soluble amide-imide polymers having the general formula: ##STR1## where n is an integer greater than 10 and preferably greater than 20. A novel amine having the general structural formula: ##STR2## wherein: A is selected from the group consisting of --R'-- and ##STR3## R is a trivalent organic radical in which the two valences included in the imide ring are attached to adjacent carbon atoms and the third valence is attached to a different carbon atom,

REFERENCES:
patent: 3485796 (1969-12-01), Naselow
patent: 3554984 (1971-01-01), George
patent: 3984375 (1976-10-01), Frost

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