Process for preparing polyether polyols

US9006499B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Klaus Lorenz · Worms, DE
• Marcus Eichmann · Düsseldorf, DE

Key dates

• Filing date: Feb 12, 2014
• Grant date: Apr 14, 2015
• Expiry date: Feb 12, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2650/26
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing polyether polyols by base-catalyzed addition of alkylene oxides (epoxides) onto starter compounds which are solid at room temperature and have Zerevitinov-active hydrogen atoms, a particular feature of which is that visually clear and/or homogeneous products are obtained even in the absence of solvents.