Method for the preparation of relief structures

Details Method for the preparation of relief structures Method for the preparation of relief structures

1975-07-24

1978-05-09

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96115R, 260 47CZ, 560 19, G03C 500

Patent

active

040884899

ABSTRACT:
The invention provides a method for the preparation of relief structures of highly heat-resistant polymers, using radiation-sensitive, soluble preliminary polymers in the form of polyaddition or polycondensation products of polyfunctional carbocyclic or heterocyclic compounds containing radiation-sensitive radicals in ester groups bound to said compounds with diamines, diisocyanates, bis-acid chlorides or dicarboxylic acids of cyclic structure. According to the invention, the polyfunctional compounds carrying the radiation-sensitive radicals have, besides carboxyl, carboxylic acid chloride, amino, isocyanate or hydroxyl groups suitable for addition and condensation reactions, radiation-reactive radicals in the ester-groups bound to the compounds, partly in ortho or peri position thereto of the following structure: ##STR1## wherein: R.sub.1 = alkylene or aralkylene

REFERENCES:
patent: 3475176 (1969-10-01), Rauner
patent: 3650746 (1972-03-01), Bailey et al.
patent: 3753720 (1973-08-01), Klowczewski et al.
patent: 3801638 (1974-04-01), Ceruonka
patent: 3847767 (1974-11-01), Kloczewski
patent: 3858510 (1975-01-01), Kai et al.
patent: 3957512 (1976-05-01), Kleeberg et al.

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