Polyether alcohols and method for the production of polyether alcohols for polyurethane synthesis

US7504543B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Raimund Ruppel · Dresden, DE
• Eva Baum · Schwarzheide, DE
• Thomas Ostrowski · Mannheim, DE
• Kathrin Harre · Dresden, DE
• Elke Bleuel · Dresden, DE

Key dates

• Filing date: Mar 17, 2005
• Grant date: Mar 17, 2009
• Expiry date: Mar 17, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/2663
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polyether alcohols, to a process for preparing polyether alcohols by reacting alkylene oxides in the presence of a double metal cyanide (DMC) catalyst with at least one saturated OH component which may, if appropriate, have previously been reacted with an alkylene oxide, wherein an antioxidant is added before or during the reaction, and also to the further processing of the polyether alcohols to form polyurethanes.