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. 19, 2002
Filed:
May. 19, 2000
Applicant:
Inventors:
Kendra L. Flagler, Fenelon Falls, CA;
David E. Laycock, Ontario, CA;
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 2/726 ; B01J 2/702 ; B01J 3/116 ; B01J 3/122 ;
U.S. Cl.
CPC ...
B01J 2/726 ; B01J 2/702 ; B01J 3/116 ; B01J 3/122 ;
Abstract
Metal cyanide catalysts are complexed with organic sulfone or sulfoxide compounds. The catalysts are active alkylene oxide polymerization catalysts that tend to have short induction periods and moderate exotherms.