Method for the production of printing plates using photosensitive compositions

US4001015A · kind A · utility

Assignee

• Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Inventors

• Helmut Barzynski · Bad Dürkheim, DE
• Peter Richter · Karlstein, DE

Key dates

• Filing date: Jan 30, 1974
• Grant date: Jan 4, 1977
• Expiry date: Jan 30, 1994

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/033
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Photosensitive compositions based on soluble vinylpyrrolidone polymers, soluble or swellable polycarboxylic acids, photopolymerizable olefinically unsaturated monomers and optional additions of photoinitiators and polymerization inhibitors. The photosensitive compositions of the invention are suitable for the preparation of printing plates, particularly lithographic plates.