Cationic polymers as thickeners for aqueous and alcoholic compositions

US8247507B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ivette Garcia Castro · Ludwigshafen, DE
• Son Nguyen Kim · Hemsbach, DE
• Wolfgang Jahnel · Bellheim, DE
• Matthias Laubender · Schifferstadt, DE
• Rolf Werner · Ludwigshafen, DE

Key dates

• Filing date: Sep 14, 2007
• Grant date: Aug 21, 2012
• Expiry date: May 28, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F226/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for producing polymers by radically polymerizing a mixture comprising 99.99 to 10% by weight of at least one α,β-ethylenically unsaturated compound with at least one cationogenic and/or cationic group per molecule, 0 to less than 25% by weight of at least one monoethylenically unsaturated amide-group-containing compound different from a) and also 0.01 to 5% by weight of a crosslinker using at least two different water-insoluble initiators.