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:
Feb. 07, 2017
Filed:
Mar. 12, 2013
Applicant:
Bayer Materialscience, Llc, Pittsburgh, PA (US);
Inventors:
Kenneth G. McDaniel, Charleston, WV (US);
George G. Combs, McMurray, PA (US);
Assignee:
Covestro LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/26 (2006.01); C08G 65/26 (2006.01); B01J 31/06 (2006.01); B01J 31/22 (2006.01); B01J 31/16 (2006.01); B01J 31/18 (2006.01);
U.S. Cl.
CPC ...
C08G 65/2663 (2013.01); B01J 27/26 (2013.01); B01J 31/06 (2013.01); B01J 31/068 (2013.01); B01J 31/2208 (2013.01); C08G 65/2606 (2013.01); B01J 31/16 (2013.01); B01J 31/18 (2013.01); B01J 2231/14 (2013.01); B01J 2531/26 (2013.01); B01J 2531/845 (2013.01); Y02P 20/52 (2015.11);
Abstract
This invention relates to novel double metal cyanide catalysts and to a process for the production of these double metal cyanide catalysts. These DMC catalysts can be used to prepare polyoxyalkylene polyols which have low amounts of high molecular weight tail compared polyoxyalkylene polyols prepared from DMC catalysts of the prior art.