Patent · US Active

Process for the production of polyether carbonate polyols

US9062156B2 · kind B2 · utility

1Cited by

8References

13Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

Christoph Gürtler · Cologne, DE
Stefan Grasser · Leverkusen, DE
Aurel Wolf · Wülfrath, DE

Key dates

Filing date	Oct 11, 2011
Grant date	Jun 23, 2015
Priority date	—
Expiry date	Jan 7, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G65/2696
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides (epoxides) and carbon dioxide in the presence of at least one double metal cyanide catalyst, wherein the production of the polyether carbonate polyols is carried out in a tubular reactor.

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