Preparation of vinylpyrrolidone polymers

US4816534A · kind A · utility

Assignee

• BASF SE

Inventors

• Adolf Nuber · Böhl-Iggelheim, DE
• Walter Denzinger · Speyer, DE
• Axel Sanner · Bischofswerda, DE

Key dates

• Filing date: Dec 14, 1987
• Grant date: Mar 28, 1989
• Expiry date: Dec 14, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F26/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrazine-free vinlypyrrolidone polymers which dissolve in water and organic solvents to give a clear solution are prepared by polymerization using di-tert-butyl peroxide in an aqueous medium.