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:
Nov. 27, 2012
Filed:
Feb. 03, 2011
Applicants:
Kumudini C. Jayaratne, Helsinki, FI;
Michael D. Jensen, Laurel, MD (US);
Qing Yang, Bartlesville, OK (US);
Inventors:
Kumudini C. Jayaratne, Helsinki, FI;
Michael D. Jensen, Laurel, MD (US);
Qing Yang, Bartlesville, OK (US);
Assignee:
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/52 (2006.01); C08F 4/64 (2006.01); C08F 4/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.