Photosensitive recording material suitable for the production of printing plates and relief plates, and the production of these plates using this recording material

US4517277A · kind A · utility

Assignee

• BASF SE

Inventors

• John Lynch
• Herbert Naarmann · Wattenheim, DE
• Gunther Schulz · Bad Dürkheim, DE
• Rudolf Vyvial · Ludwigshafen, DE
• Gunter Wallbillich · Schifferstadt, DE
• Manfred Zurger · Sinsheim, DE

Key dates

• Filing date: Oct 29, 1982
• Grant date: May 14, 1985
• Expiry date: Oct 29, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/11
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Photosensitive recording materials which are suitable for the production of printing plates and relief plates and possess a photopolymerizable relief-forming layer which can be developed with water and is based on a polyvinylalcohol/monomer mixture contain, as a binder in the said layer, a polyvinylalcohol derivative which is obtained by reacting polyvinylalcohol with an acylating agent which has groups which are polymerizable by free radicals, the reaction being carried out in the heterogeneous phase, in an aprotic dispersant, using the acylating agent in an amount which corresponds to not less than twice the molar amount required to achieve the desired degree of acylation.