Photopolymerizable mixture in a transfer element

US4296196A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventor

• Raimund J. Faust · Wiesbaden, DE

Key dates

• Filing date: Jun 27, 1980
• Grant date: Oct 20, 1981
• Expiry date: Jun 27, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/106
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a light-sensitive transfer material, comprising a flexible temporary support and a thermoplastic photopolymerizable layer which layer comprises a polymeric, thermoplastic binder which is soluble or at least swellable in aqueous-alkaline solutions, a polyurethane with two terminal acrylic acid or methacrylic acid ester groups which is capable of addition polymerization, and a photoinitiator, the polyurethane corresponding to Formula I ##STR1## wherein --X-- is one of the groups ##STR2## --C.sub.k H.sub.2k --O-- and --C.sub.r H.sub.2r-2 --O-- Y is a saturated aliphatic or cycloaliphatic group with 2 to 12 carbon atoms, and PA0 Z ##STR3## and wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen atoms or methyl groups, PA0 n is a whole number from 2 to 15, PA0 m is a whole number from 2 to 4, PA0 p is a whole number from 1 to 4, PA0 k is a whole number from 2 to 12, and PA0 r is a whole number from 4 to 12.