Polymers based on arcrylic, methacrylic or ethacrylic amidoalkyl sulfonic acid or salts and carboxyalky acrylate, methacrylate or ethacrylate or oligomers of said carboxy compounds

US9834635B2 · kind B2 · utility

Assignee

• CLARIANT INTERNATIONAL LTD · CH

Inventors

• Peter Klug · Großostheim, DE
• Dirk Fischer · Garching an der Alz, DE
• Thomas Lindner · Wiesbaden, DE
• Matthias Kunze · Frankfurt, DE
• Wiebke Moeller · Bad Soden, DE
• Carina Mildner · Frankfurt am Main, DE
• Sebastiano Lo Vasco · Glauburg, DE

Key dates

• Filing date: Mar 20, 2010
• Grant date: Dec 5, 2017
• Expiry date: Mar 20, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F220/26
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Water-soluble or water-swellable polymers are described, containing a) 20.0 to 98.99 mole percent of one or more independently recurring structural units of the formula (1) and b) 1.0 to 79.99 mole percent of one or more independently recurring structural units of the formula (2), and c) 0.01 to 8.0 mole percent of one or more independently recurring cross-linking structural units, which are obtained from one or more monomers having at least two olefinic double bonds. The polymers are suitable, for example, as thickeners or yield point formers, in particular in cosmetic, dermatological or pharmaceutical compositions.