Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1984-08-30
1986-04-01
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430270, 430326, G03C 1495, G03C 516
Patent
active
045798060
ABSTRACT:
A curable photosensitive mixture which is suitable as a positive-working recording material contains (a) one or more polymers which have a molecular weight of >500, contain not less than 5% by weight, based on the molecular weight of the polymer, of aromatic and/or heteroaromatic o-nitrocarbinol ester groups and also contain two or more further reactive functional groups which are available for reaction with a thermal crosslinking agent, (b) one or more compounds which effect crosslinking and are capable of reacting with the further reactive functional groups of the polymer (a) under the action of heat, at temperatures substantially above room temperature, and (c) a filler, with or without (d) other conventional additives and/or assistants. The photosensitive mixture is particularly useful as a positive-working recording material for optical information fixing, principally for the production of thermally stable relief images or resist images and, particularly advantageously, of soldering masks.
REFERENCES:
patent: 3849137 (1974-11-01), Barzynski et al.
patent: 3926636 (1975-12-01), Barzynski et al.
patent: 4035189 (1977-07-01), Hayashi et al.
patent: 4456679 (1984-06-01), Leyrer et al.
Elzer Albert
Jaeckel Klaus-Peter
Leyrer Reinhold J.
Schupp Hans
BASF - Aktiengesellschaft
Hamilton Cynthia
Kittle John E.
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