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:
Mar. 24, 2015
Filed:
Mar. 25, 2013
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Joel L. Martin, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Max P. McDaniel, Bartlesville, OK (US);
Jim B. Askew, Barnsdall, OK (US);
Assignee:
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/642 (2006.01); C08F 4/6592 (2006.01); C08F 10/00 (2006.01); C08F 4/76 (2006.01); C07F 17/00 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 4/76 (2013.01); C07F 17/00 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); Y10S 526/943 (2013.01);
Abstract
The present invention discloses catalyst compositions employing silicon-bridged metallocene compounds with bulky substituents. Methods for making these silicon-bridged metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.