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:
Dec. 04, 2012
Filed:
Jan. 21, 2008
Applicants:
Darijo Mijolovic, Mannheim, DE;
Markus Kummeter, Heddesheim, DE;
Michael Stoesser, Neuhofen, DE;
Stephan Bauer, Ostercappeln, DE;
Stephan Goettke, Heidelberg, DE;
Inventors:
Darijo Mijolovic, Mannheim, DE;
Markus Kummeter, Heddesheim, DE;
Michael Stoesser, Neuhofen, DE;
Stephan Bauer, Ostercappeln, DE;
Stephan Goettke, Heidelberg, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/34 (2006.01); C08G 65/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing polyether carbonate polyols by addition of alkylene oxides and carbon dioxide onto H-functional starter substances using DMC catalysts, wherein one or more starter substances are initially placed in the reactor and one or more starter substances are metered continuously into the reactor during the reaction.