Water-soluble copolymers of monoethylenically unsaturated polyalkylene oxide monomers and dipolar monomers containing at least one nitrogen atom

US7790667B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Dieter Boeckh · Schifferstadt, DE
• Thomas Pfeiffer · Kumhausen, DE
• Stefan Becker · Mannheim, DE
• Marcus Guzmann · Bad Windsheim, DE
• Pramod Reddy · Sharonville, US
• John Aiken · Cincinnati, US

Key dates

• Filing date: Nov 16, 2004
• Grant date: Sep 7, 2010
• Expiry date: Jun 13, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3769
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble copolymers which comprise, in copolymerized form,