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:
Aug. 11, 2009
Filed:
Jun. 05, 2006
Michael D. Jensen, Bartlesville, OK (US);
Joel L. Martin, Bartlesville, OK (US);
Max P. Mcdaniel, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Matthew G. Thorn, Bartlesville, OK (US);
Elizabeth A. Benham, Spring, TX (US);
Ted H. Cymbaluk, Kemah, TX (US);
Ashish M. Sukhadia, Bartlesville, OK (US);
Rajendra K. Krishnaswamy, Bartlesville, OK (US);
Mark E. Kertok, Bartlesville, OK (US);
Michael D. Jensen, Bartlesville, OK (US);
Joel L. Martin, Bartlesville, OK (US);
Max P. McDaniel, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Matthew G. Thorn, Bartlesville, OK (US);
Elizabeth A. Benham, Spring, TX (US);
Ted H. Cymbaluk, Kemah, TX (US);
Ashish M. Sukhadia, Bartlesville, OK (US);
Rajendra K. Krishnaswamy, Bartlesville, OK (US);
Mark E. Kertok, Bartlesville, OK (US);
Chevron Phillips Chemical Company, LP, The Woodlands, TX (US);
Abstract
This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new polyolefins. The compositions and methods disclosed herein provide ethylene polymers and copolymers with lower MI, increased melt strength, and good MD tear properties.