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. 15, 2005
Filed:
Aug. 26, 2003
George G. Combs, McMurray, PA (US);
George G. Combs, McMurray, PA (US);
Bayer Antwerp, N.V., Antwerp, BE;
Abstract
The present invention provides a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II),M[M(CN)]OH.L  (I)M[M(CN)].zM(OH).L (II)wherein Mrepresents a metal selected from Zn, Fe, Ni, Mn, Co, Sn, Pb, Fe, Mo, Mo, Al, V, V, Sr, W, W, Cuand Cr, Mrepresents a metal selected from Fe, Fe, Co, Co, Cr, Cr, Mn, Mn, Ir, Ni, Rh, Ru, Vand V, L represents an organic ligand and x, y and q are chosen to maintain electroneutrality. Further provided are processes for the production of the inventive DMC catalysts. The crystalline, hydroxide containing DMC catalysts of the present invention may find use in the preparation of polyols, such as polyether polyols.