Salts of alkyl esters of sulfonated dicarboxylic acids and compositions containing same

US7981932B2 · kind B2 · utility

Assignee

• Cognis IP Management GmbH · DE

Inventors

• Joachim Meyer · Frankenthal (Pfalz), DE
• Thomas Koelen Van Der · Oberhausen, DE
• Uwe Held · Velbert, DE
• Stefan Busch · Mülheim an der Ruhr, DE

Key dates

• Filing date: Mar 2, 2007
• Grant date: Jul 19, 2011
• Expiry date: Aug 21, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A salt of a mono- and/or dialkyl ester of a sulfonated dicarboxylic acid is provided, where the dicarboxylic acid contains 4 to 8 carbon atoms and the alkyl groups are derived from 2-propylheptanol. A composition including (a) one or more salt(s) of a mono- and/or dialkyl ester(s) of a sulfonated dicarboxylic acid(s), where the dicarboxylic acid contains 4 to 8 carbon atoms and the alkyl groups are derived from 2-propylheptanol; and (b) one or more organic solvents liquid at 20° C. with a boiling point above 250° C. at 1 bar is also provided.