Modified emulsion polymers, in particular for photopolymerizable recording materials which can be developed in water and aqueous solvents

US5262486A · kind A · utility

Assignee

• BASF SE

Inventors

• Thomas Telser · Weinheim, DE
• Martin Meister · Bocholt, DE
• Horst Koch · Havelsee, DE

Key dates

• Filing date: Jul 16, 1991
• Grant date: Nov 16, 1993
• Expiry date: Jul 16, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/919
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Modified polymers in acid form or in the form of their salts consist of PA0 A) a carboxyl-containing copolymer prepared by emulsion polymerization and PA0 B) side radicals introduced therein by partial grafting onto the carboxyl groups and of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.5 -alkyl, X is oxygen, sulfur or imino, Y is an ester, amide, ether or C.sub.1 -C.sub.10 -alkylene group and 1<n.ltoreq.100 for the average number n of the monomer units undergoing addition per reacted acid function.