Device for producing polyether alcohols

US7759521B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Elke Bleuel · Dresden, DE
• Monika Wetterling · Senftenberg - Zły Komorow, DE
• Marita Schuster · Senftenberg - Zły Komorow, DE
• Markus Templin · Bohmte, DE
• Dieter Rodewald · Bad Essen, DE

Key dates

• Filing date: Jul 15, 2004
• Grant date: Jul 20, 2010
• Expiry date: Jan 27, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2110/0083
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing autocatalytic polyether alcohols by reacting H-functional starter substances containing at least one amino group which is catalytically active in the urethane reaction, in particular a tertiary amino group, and at least one group which is reactive toward alkylene oxides, in particular a primary and/or secondary amino group and/or hydroxyl group, with alkylene oxides, which comprises