Polyimidazole and polyimidazopyrrolone precursor stages and the

Details Polyimidazole and polyimidazopyrrolone precursor stages and the Polyimidazole and polyimidazopyrrolone precursor stages and the

1980-08-19

1983-08-09

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...

428411, 428413, 4284744, 525430, 525435, 528341, 528342, 528345, 528353, C08G 6948

Patent

active

043979998

ABSTRACT:
The present invention relates to oligomeric and/or polymeric precursor stages of polyimidazoles and polyimidazopyrrolones, as well as to a method for preparing these new precursor stages. The invention provides addition products of olefinically unsaturated monoepoxides on amino group-containing polycondensation products of aromatic and/or heterocyclic tetraamino compounds with dicarboxylic-acid chlorides or esters or on amino group-containing polyaddition products of the tetraamino compounds and tetracarboxylic-acid dianhydrides. The radiation-reactive precursor stages according to the invention are suited, for example, for the preparation of highly heat-resistant relief structures.

REFERENCES:
patent: 3338985 (1967-08-01), Magat et al.
patent: 3483105 (1969-12-01), D'Alelio
patent: 3957512 (1976-05-01), Kleeberg et al.
patent: 3988287 (1976-10-01), Inokuchi et al.
patent: 4026904 (1977-05-01), D'Alelio
Hackh's Chemical Dictionary, Fourth Edition, p. 250.
The Naming and Indexing of Chemical Compounds from Chemical Abstracts, vol. 56, pp. 46n, 47n, 48n, 57n, 58n.
Noller-Chemistry of Organic Compounds, Second Edition, p. 139.

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