Radiation polymerizable mixture containing reaction products of glycerol acrylates and polyisocyanates

US4458007A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Ulrich Geissler · Hochheim, DE
• Heide Sprengel · Wiesbaden, DE
• Walter Herwig · Bad Soden, DE
• Manfred Hasenjaeger · Wiesbaden, DE

Key dates

• Filing date: Dec 15, 1981
• Grant date: Jul 3, 1984
• Expiry date: Dec 15, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/107
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A radiation-polymerizable mixture comprising a polymeric binder, a radiation-activatable polymerization initiator and a polymerizable acrylate or methacrylate ester having at least two urethane groups in the molecule, said ester being a reaction product of glycerol dimethacrylate or glycerol diacrylate and a polyisocyanate obtained by reacting a polyhydroxy compound having from two to six hydroxyl groups with a diisocyanate or a reaction product of glycerol dimethacrylate or glycerol diacrylate and a diisocyanate. The new polymerizable urethanes provide the mixture with a high light-sensitivity, good reciprocity and a low tendency to crystallize.