Water-soluble or water-swellable polymers on the basis of salts of acryloyldimethyltaurine acid or the derivatives thereof, the production thereof and the use thereof as thickener, stabilizer and consistency agents

US8629224B2 · kind B2 · utility

Assignee

• Clariant Finance (BVI) Limited · VG

Inventors

• Matthias Loeffler · Idstein, DE
• Thomas Lindner · Wiesbaden, DE
• Ute Back · Blankenbach, DE
• Michael Hornung · Frankfurt am Main, DE

Key dates

• Filing date: Dec 16, 2008
• Grant date: Jan 14, 2014
• Expiry date: Jun 20, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F228/02
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Polymers are described comprising a) one or more of the recurring structural units of the formula (1)where R1 is hydrogen, methyl or ethyl and A is C1-C8 alkylene, and Q+ is H+, NH4+, Li+, Na+, K+, ½ Ca++, ½ Mg++, ½ Zn++ or ⅓ Al+++, and the neutralization degree of the structural units of formula (1) is 50 to 100 mol-%, and b) one or more of the recurring structural units of the formula (2)where R1 and A are R1 and A from formula (1) and X+ is [HNR5R6R7]+, where R5, R6 and R7 can independently from each other be hydrogen, a linear or branched alkyl group with 1 to 22 carbon atoms, a linear or branched, simple or polyunsaturated alkenylene group with 2 to 22 carbon atoms, a C6-C22-alkylamidopropyl group, a linear monohydroxyalkyl group with 2 to 10 carbon atoms or a linear or branched dihydroxyalkyl group with 3 to 10 carbon atoms, and wherein at least one of the groups R5, R6 and R7 is not hydrogen.