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. 20, 2005
Filed:
Apr. 22, 2004
Max P. Mcdaniel, Bartlesville, OK (US);
Elizabeth A. Benham, Spring, TX (US);
Steven J. Secora, Bartlesville, OK (US);
Michael D. Jensen, Bartlesville, OK (US);
Kathy S. Collins, Bartlesville, OK (US);
Max P. McDaniel, Bartlesville, OK (US);
Elizabeth A. Benham, Spring, TX (US);
Steven J. Secora, Bartlesville, OK (US);
Michael D. Jensen, Bartlesville, OK (US);
Kathy S. Collins, Bartlesville, OK (US);
Chevron Phillips Chemical Company, LP, The Woodlands, TX (US);
Abstract
According to an embodiment, catalyst systems for polymerizing olefins include a catalyst comprising chromium and a cocatalyst comprising a substituted or unsubstituted non-transition metal cyclopentadienyl compound (Cp). The catalyst also comprises an inorganic oxide support. In an embodiment, methods of preparing a catalyst comprise contacting a support with chromium and with a non-transition metal Cp compound. In one embodiment, the support may be contacted with a solution comprising the non-transition metal Cp compound prior to entry into a reaction zone. In another embodiment, the activated catalyst and non-transition metal Cp compound may be added separately to the reaction zone.