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:
Apr. 14, 2015
Filed:
Feb. 12, 2014
Applicant:
Bayer Materialscience Ag, Leverkusen, DE;
Inventors:
Klaus Lorenz, Dormagen, DE;
Marcus Eichmann, Dusseldorf, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/34 (2006.01); C08G 65/00 (2006.01); C08G 65/30 (2006.01);
U.S. Cl.
CPC ...
C08G 65/34 (2013.01); C08G 65/00 (2013.01); C08G 65/30 (2013.01);
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.