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:
Sep. 11, 2007
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. The multimetal cyanide compound has an ordered structure defined by a cationic catalytic center and an anionic backbone with the anionic backbone spatially arranged about the cationic catalytic center. The anionic backbone is modified with a supplemental anionic spacer to affect the spatial arrangement and catalytic activity of the cationic catalytic center. The supplemental anionic spacer is incorporated into the multimetal cyanide compound to establish the general formula, M[M(CN)MX], wherein M, M, and Mare various metal ions and X is the supplemental anionic spacer. An H-functional initiator, an alkylene oxide, and COare reacted in the presence of the modified multimetal cyanide compound to form the polyethercarbonate polyol.