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:
May. 13, 2014
Filed:
Dec. 07, 2010
Maria A. Apecetche, Buenos Aires, AR;
Maria Pollard, Pearland, TX (US);
Robert O. Hagerty, Wyckoff, NJ (US);
Michael D. Awe, Langhorne, PA (US);
Kevin J. Cann, Rocky Hill, NJ (US);
Jose F. Cevallos-candau, Charleston, WV (US);
F. David Hussein, Cross Lanes, WV (US);
Maria A. Apecetche, Buenos Aires, AR;
Maria Pollard, Pearland, TX (US);
Robert O. Hagerty, Wyckoff, NJ (US);
Michael D. Awe, Langhorne, PA (US);
Kevin J. Cann, Rocky Hill, NJ (US);
Jose F. Cevallos-Candau, Charleston, WV (US);
F. David Hussein, Cross Lanes, WV (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
Catalysts and methods for making and using the same are provided. The method for fabricating a catalyst may includes contacting a supported catalyst with a monomer under conditions that reduce an overall charge of the catalyst to less than about 75% of an initial charge of the catalyst. A method for polymerization may include introducing a pre-polymerized catalyst and one or more olefins into a gas phase fluidized bed reactor, operating the reactor at conditions sufficient to produce a polyolefin, wherein the polymerization is carried out in the substantial absence of any continuity additives.