Hydrophobically modified polymers containing vinylamine or ethylenimine units, method for the production thereof, and their use as retention agents

US7541409B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Guenther Grimm · Ludwigshafen, DE
• Volker Braig · Weinheim, DE
• Simon Champ · Ludwigshafen, DE
• Norbert Mahr · Schifferstadt, DE

Key dates

• Filing date: May 19, 2003
• Grant date: Jun 2, 2009
• Expiry date: Nov 26, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G81/025
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrophobically modified polymers containing vinylamine or ethylenimine units and obtainable by reacting