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. 02, 2010
Filed:
Mar. 29, 2005
Werner Hinz, Grosse Ile, MI (US);
Jacob Wildeson, Chambersburg, PA (US);
Edward M. Dexheimer, Grosse Ile, MI (US);
Werner Hinz, Grosse Ile, MI (US);
Jacob Wildeson, Chambersburg, PA (US);
Edward M. Dexheimer, Grosse Ile, MI (US);
BASF Corporation, Florham Park, NJ (US);
Abstract
A method of forming a polyethercarbonate polyol enhances incorporation of COinto the polyethercarbonate polyol. The method provides a catalyst including a multimetal cyanide compound. An H-functional initiator, an alkylene oxide, and COare reacted in the presence of the multimetal cyanide compound in a reactor. The method further provides a CO-philic compound or a CO-philic substituent. The CO-philic compound and substituent enhance incorporation of the COinto the polyethercarbonate polyol and reduce formation of cyclic alkylene carbonates, such as cyclic propylene carbonate, which are undesirable byproducts.