Photosensitive compositions and lithographic printing plates utilizing oxazoline modified acid polymers

US5695905A · kind A · utility

Assignee

• Sun Chemical Corporation · US

Inventors

• Celin Savariar-Hauck · Badenhausen, DE
• Harald Baumann · Tuttlingen, DE
• Hans-Joachim Timpe · Biberach an der Riß, DE
• Udo Dwars · Herzberg, DE

Key dates

• Filing date: May 17, 1996
• Grant date: Dec 9, 1997
• Expiry date: May 17, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G03F7/032
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A photosensitive composition having a photoreactive component, selected from a diazonium polycondensation product or a free radical polymerizable system of photoinitiators and unsaturated compounds or a hybrid system and a binder formed by reacting a carboxyl group containing a polymer of formula EQU P--(--X--COOH).sub.n (I), wherein P is a polymer, n is an integer and X is a single bond or a spacer group, with a 2-oxazoline of the formula ##STR1## wherein R is an alkyl-, aryl-, aralkyl-, alkoxy-, aryloxy- or aralkyloxy group and R' and R" are independently a hydrogen, alkyl- or aryl groups.