Method for producing alkanol alkoxylates at optimal reaction temperatures

US7348460B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christian Wulff · Mannheim, DE
• Michael Stoesser · Schifferstadt, DE
• Georg Heinrich Grosch · Bad Dürkheim, DE
• Kai-Uwe Baldenius · Ludwigshafen, DE
• Edward Bohres · Ludwigshafen, DE

Key dates

• Filing date: Apr 25, 2003
• Grant date: Mar 25, 2008
• Expiry date: Apr 25, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/42
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing at least one alkoxylate, which comprises bringing at least one alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, pentylene oxide and decene oxide into contact with at least one starter compound in the presence of at least one double metal cyanide compound, with the reaction being carried out at a temperature of from 130° C. to 155° C., to the alkoxylates, in particular ethoxylates, themselves and to the use of such ethoxylates as emulsifier, foam regulator or as wetting agents for hard surfaces.