Positively operating radiation-sensitive mixture containing a polyfunctional .alpha.-diazo-.beta.-keto ester and radiation-sensitive recording material containing this mixture

US5198322A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Peter Wilharm · Meitingen, DE
• Hans-Joachim Merrem · Walldorf, DE
• Georg Pawlowski · Saitama, JP
• Ralph R. Dammel · Flemington, US

Key dates

• Filing date: Jan 12, 1990
• Grant date: Mar 30, 1993
• Expiry date: Jan 12, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A positively operating radiation-sensitive mixture comprising a binder which is insoluble in water but soluble or at least swellable in aqueous alkaline solution, and as a photoactive component a polyfunctional .alpha.-diazo-.beta.-keto ester of the general formula I ##STR1## in which R.sup.1 denotes an aliphatic, cycloaliphatic or araliphatic or aromatic radical having 4 to 20 carbon atoms, in which individual CH.sub.2 groups can be replaced by oxygen or sulfur atoms or by ##STR2## or NH groups and/or contain keto groups, X denotes an aliphatic, cycloaliphatic, carbocyclic, heterocyclic or araliphatic radical having 2 to 22 carbon atoms, in which individual CH.sub.2 groups can be replaced by oxygen or sulfur atoms or by the groups --NR.sup.2 --, --C(O)--O--, --C(O)--NR.sup.2 --, --C(O)-- ##STR3## --NR.sup.2 --C(O)--NR.sup.3 --, --O--C(O)--NR.sup.2 --, --C(O)-- ##STR4## or --O--C(O)--O--, or CH groups can be replaced by ##STR5## in which R.sup.2 and R.sup.3 independently of one another represent hydrogen or an aliphatic, carbocyclic or araliphatic radical, PA0 m denotes an integer from 2 to 10 and PA0 n denotes an integer from 0 to 2, wherein PA0 m-n is .gtoreq.2, is described. The…