Process for preparing reactive polyether polyols having an ethylene oxide end block

US7186867B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Thomas Ostrowski · Mannheim, DE
• Raimund Ruppel · Dresden, DE
• Gerd Hoppner · Schwarzheide, DE
• Sascha Bergmann · Hamburg, DE
• Koenraad VANDEWALLE · Oostmalle, BE
• Eva Baum · Schwarzheide, DE

Key dates

• Filing date: Apr 21, 2004
• Grant date: Mar 6, 2007
• Expiry date: Oct 12, 2024

Classification

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

Abstract

Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which