New imides of unsaturated dicarboxylic acids, processes for thei

Details New imides of unsaturated dicarboxylic acids, processes for thei New imides of unsaturated dicarboxylic acids, processes for thei

1976-05-19

1978-04-04

Gallagher, R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 47UA, 260 47CP, 260 49, 260 78A, 542415, 542416, 542402, C07D403112, C07D40314

Patent

active

040827682

ABSTRACT:
New bis-imides and tris-imides of the formula ##STR1## in which A and A' denote aromatic radicals which are optionally substituted or interrupted by an oxygen atom, an alkylene group or a sulphonyl group, Z denotes a radical of the formulae ##STR2## D denotes an oxygen atom or sulphur atom, m denotes the number 1 or 0 and n denotes the number 2 or 3, are obtained by cyclizing dicarboxylic acid monoamide compounds of the formula ##STR3## WITH ELIMINATION OF WATER. The bis-imides and tris-imides, mixed with azomethines and optionally with curing catalysts, can be used for the manufacture of moulded materials having technically very valuable mechanical and dielectric properties.

REFERENCES:
patent: 3651012 (1972-03-01), Holub et al.
patent: 3732189 (1973-05-01), Crevello et al.
patent: 3742089 (1973-06-01), Schroeter
patent: 3756951 (1973-09-01), Dickert
patent: 3766302 (1973-10-01), Holub et al.

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