Sheetlike light-sensitive recording

US4994344A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Rudolf Kurtz · Heidelberg, DE
• Horst Koch · Havelsee, DE
• Thomas Telser · Weinheim, DE
• Manfred Zuerger

Key dates

• Filing date: Feb 3, 1989
• Grant date: Feb 19, 1991
• Expiry date: Feb 3, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/027
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A light-sensitive recording element useful for preparing photopolymer flexographic relief printing plates, comprising at least one photopolymerizable recording layer having a thickness of from 0.1 to 7 mm and made up of: PA0 from 20 to 99.499% by weight of at least one polymeric binder which may be random ethylene-propylene-alkadiene terpolymers having an ethylene content of from 40 to 80% by weight and a double bond content of from 2 to 20 olefinic double bonds per 1,000 carbon atoms; PA0 from 0.001 to 10% by weight of at least one photopolymerization initiator, PA0 from 0.5 to 50% by weight of at least one monomer which is compatible with the binder and has at least one photopolymerizable olefinic double bond, and PA0 from 0.001 to 2% by weight of at least one inhibitor of thermally initiated polymerization and from 0.0001 to 5% by weight of at least one antioxidant as assistants.