The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2016
Filed:
Dec. 10, 2012
Applicant:
Bayer Intellectual Property Gmbh, Monheim, DE;
Inventors:
Christoph Guertler, Cologne, DE;
Thoams Ernst Mueller, Aachen, DE;
Anthony Kermagoret, Moelan sur mer, FR;
Yvonne Dienes, Hannover, DE;
Julien Barruet, Fresnes, FR;
Aurel Wolf, Wuelfrath, DE;
Stefan Grasser, Leverkusen, DE;
Assignee:
BAYER INTELLECTUAL PROPERTY GMBH, Monheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/26 (2006.01); C08G 64/34 (2006.01); C08G 64/18 (2006.01); C08G 18/44 (2006.01); C08G 18/48 (2006.01);
U.S. Cl.
CPC ...
C08G 65/2663 (2013.01); C08G 64/183 (2013.01); C08G 64/34 (2013.01); C08G 65/26 (2013.01); C08G 65/2615 (2013.01); C08G 18/44 (2013.01); C08G 18/4825 (2013.01);
Abstract
The present invention relates to a method for producing polyetherester carbonate polyols by means of catalytic addition of carbon dioxide, alkylene oxides and cyclic anhydrides to H-functional starter compounds in the presence of double metal cyanide (DMC) catalysts.