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:
Jan. 12, 2010
Filed:
May. 21, 2004
Applicants:
Sandeep S. Dhingra, Midland, MI (US);
Karla F. Mabe, Midland, MI (US);
Keith Jeffrey Watson, Midland, MI (US);
Inventors:
Sandeep S. Dhingra, Midland, MI (US);
Karla F. Mabe, Midland, MI (US);
Keith Jeffrey Watson, Midland, MI (US);
Assignee:
Dow Global Technologies, Inc., Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
Nano-scale DMC catalyst complexes are highly active alkylene oxide polymerization catalysts. Thy show a greatly improved ability to catalyze the formation of EO-capping onto secondary hydroxyl-terminated polyethers. The catalysts can be prepared by precipitation in the dispersed adequous phase of a water-in-oil emulsion.