Oxyalkylated quaternary ammonium compounds and their use as drag reducing agents

US4828765A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Dieter Ohlendorf · Liederbach, DE
• Manfred Hofinger · Altötting, DE

Key dates

• Filing date: Feb 2, 1988
• Grant date: May 9, 1989
• Expiry date: Feb 2, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C65/21
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Quaternary ammonium compounds of the formula ##STR1## in which R.sub.1 denotes an alkyl or alkenyl radical with 12 to 22 carbon atoms; R.sub.2 and R.sub.3 are identical or different and denote an alkyl radical with 1 to 4 carbon atoms; x denotes an integral or non-integral number from 1 to 3; and A.sup..crclbar. denotes an alkyl- or alkenyl-sulfonate anion, an alkyl or alkenyl-carbonate anion or a benzoate, naphthoate or phenylsulfonate anion, the tosylate ion being excluded, a process for their preparation and their use as drag reducing agents in liquids with turbulent flow.