Fluid photo-crosslinkable compositions for the manufacture of relief printing plates

US4011084A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinrich Hartmann · Schifferstadt, DE
• Gerhard Hoffmann · Otterstadt, DE
• Helmut Barzynski · Bad Dürkheim, DE
• August Lehner
• Werner Lenz · Bad Dürkheim, DE
• Herbert Stutz · Karlsruhe, DE
• Heinz-Ulrich Werther · Monsheim, DE

Key dates

• Filing date: Sep 10, 1975
• Grant date: Mar 8, 1977
• Expiry date: Sep 10, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/672
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Fluid photo-crosslinkable composition consisting essentially of a photo-initiator and a mixture of PA1 A. a polyurethane obtained by reacting a hydroxyl-containing saturated aliphatic polyester with a polyisocyanate and a monoacrylate or monomethacrylate of a diol, and PA1 B. an N-vinyl lactam optionally in admixture with other monomers. These compositions are suitable for the production of high-quality relief printing plates and have a short processing time.