Polyimide, polyisoindoloquinazoline dione, polyoxazine dione and

Details Polyimide, polyisoindoloquinazoline dione, polyoxazine dione and Polyimide, polyisoindoloquinazoline dione, polyoxazine dione and

1980-08-19

1983-05-24

Welsh, Maurice J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

350 9634, 525426, 525450, 528 73, 528351, 528353, 528 74, 528 75, C08G 1830

Patent

active

043851657

ABSTRACT:
The present invention relates to oligomeric and/or polymeric radiation-reactive precursor stages of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones as well as to a method for the preparation of these radiation-reactive precursor stages. The invention provides addition products of olefinically unsaturated monoepoxides on carboxyl group-containing polyaddition products of aromatic and/or heterocyclic tetracarboxylic-acid dianhydrides and diamino compounds or diamino compounds with at least one ortho-position amido group, or on carboxyl group-containing polyaddition products of aromatic and/or heterocyclic dihdyroxy dicarboxylic acids or corresponding diaminodicarboxylic acids and diisocyanates. The radiation-reactive precursor stages according to the invention are suitable, for example, for the manufacture of highly heat-resistant relief structures.

REFERENCES:
patent: 3886119 (1975-05-01), D'Alelio
patent: 3957512 (1976-05-01), Kleeberg et al.
patent: 4251419 (1981-02-01), Heilman et al.

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