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:
Dec. 13, 2011
Filed:
Dec. 05, 2007
Applicants:
Kevin J. Cann, Rocky Hill, NJ (US);
Minghui Zhang, Hillsborough, NJ (US);
John H. Moorhouse, Kendall Park, NJ (US);
Maria A. Apecetche, Bridgewater, NJ (US);
Inventors:
Kevin J. Cann, Rocky Hill, NJ (US);
Minghui Zhang, Hillsborough, NJ (US);
John H. Moorhouse, Kendall Park, NJ (US);
Maria A. Apecetche, Bridgewater, NJ (US);
Assignee:
Univation Technologies, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/06 (2006.01); B01J 23/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
Broad molecular weight polyethylene and polyethylene having a bimodal molecular weight profile can be produced with chromium oxide based catalyst systems employing alkyl silanols. The systems may also contain various organoaluminum compounds. Catalyst activity and molecular weight of the resulting polyethylene may also be tuned using the present invention.