Photopolymerizable mixture and recording material produced therefrom

US5066564A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Rudolf Zertani · Mainz, DE
• Dieter Mohr · Appenheim, DE
• Klaus Rode · Treuchtlingen, DE

Key dates

• Filing date: Jul 19, 1989
• Grant date: Nov 19, 1991
• Expiry date: Jul 19, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/126
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A photopolymerizable mixture is disclosed that comprises, PA0 a) a polymeric binder, PA0 b) an acrylate or alkacrylate of a polyhydric alcohol containing one or more urea groups and one or more urethane groups, PA0 c) a photoreducible dye as photoinitiator, PA0 d) a trihalomethyl compound which can be cleaved by irradiation, and PA0 e) an acridine or phenazine compound which is active as a photoinitiator. The mixture is suitable for the production of printing plates and photoresists and is distinguished by an increased shelf life.