Patent · US Active

Method for the preparation of polyether polyols

US9169185B2 · kind B2 · utility

0Cited by

9References

19Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

Klaus Lorenz · Worms, DE
Joerg Hofmann · Krefeld, DE

Key dates

Filing date	Dec 19, 2011
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Mar 20, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2110/0083
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to methods for the preparation of polyether polyols by DMC-catalysed alkylene oxide addition to starter compounds comprising acidic sulfuric acid salts, to the use thereof for the preparation of polyurethanes, and to polyurethanes comprising the polyether polyols according to the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.