Cross-linked polymere

US9622959B2 · kind B2 · utility

Assignee

• CLARIANT INTERNATIONAL LTD · CH

Inventors

• Peter Klug · Großostheim, DE
• Dirk Fischer · Garching an der Alz, DE
• Thomas Lindner · Wiesbaden, DE
• Wiebke Mueckenheim · Bad Soden, DE
• Bianca Brasch · Aura im Sinngrund, DE
• Michael Hornung · Frankfurt am Main, DE

Key dates

• Filing date: Mar 3, 2012
• Grant date: Apr 18, 2017
• Expiry date: Mar 3, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/48
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to water-soluble or water-swellable polymers the repeating structural units of which consist of a) 90.0 to 99.99 mole-% of one or more repeating structural units originating from special monomers with sulfonic acid groups or the salts thereof such as for example 2-acrylamido-2-methyl-propanesulfonic acid or the salts thereof and b) 0.01 to 10.0 mole-% of one or more repeating structural units originating from special cross-linking agents with at least three polymerizable double bonds. The polymers for example have an advantageous sensory property profile and are highly suitable as thickening agents even in salt-containing compositions. They are furthermore advantageously suitable for producing cosmetic, dermatological or pharmaceutical compositions.