Production of flexographic relief plates by photopolymerization and development with a monoterpene developer

US4806452A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerhard Hoffmann · Otterstadt, DE
• Karl-Rudolf Kurtz · Heidelberg, DE

Key dates

• Filing date: Jan 5, 1987
• Grant date: Feb 21, 1989
• Expiry date: Jan 5, 2007

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/325
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Relief plates crosslinked by photopolymerization are produced by exposing layers which are crosslinkable by photopolymerization imagewise to actinic light and washing out the noncrosslinked parts of the layers with a developer, by a process in which the developer used contains, as an essential component, a branched or straight-chain, monoolefinically, diolefinically or triolefinically unsaturated acryclic or saturated or monoolefinically, diolefinically or triolefinically unsaturated cyclic aliphatic hydrocarbon, alcohol or ketone of 8 to 15 carbon atoms.