Polymers of alkyl-1-vinylimidazloes, the preparation and use thereof

US5773545A · kind A · utility

Assignee

• BASF SE

Inventors

• Christian Schade · Ludwigshafen, DE
• Hans-Ulrich Jager
• Jürgen Detering · Schifferstadt, DE

Key dates

• Filing date: May 20, 1996
• Grant date: Jun 30, 1998
• Expiry date: May 20, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3776
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymers of alkyl-1-vinylimidazoles, a process for preparing polymers of alkyl-1-vinylimidazoles by free-radical polymerization of a monomer mixture comprising PA1 (a) 10-100% by weight of at least one alkyl-1-vinylimidazole and PA1 (b) 0-90% by weight of 1-vinylpyrrolidone, 1-vinylcaprolactam, 1-vinyltriazole, 1-vinylimidazole, 1-vinyloxazolidinone or mixtures thereof, PA1 (c) 0-30% by weight of other monoethylenically unsaturated monomers and PA1 (d) 0-10% by weight of a monomer containing at least 2 monoethylenic double bonds in water, at least one C.sub.1 -C.sub.4 -alcohol or mixtures thereof, and the use of polymers which comprise at least 10% by weight of an alkyl-1-vinylimidazole as copolymerized unit as additive to detergents to inhibit transfer of dyes during the washing process.