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:
Jan. 28, 2014
Filed:
Oct. 07, 2010
Applicants:
Richard M. Buck, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
Christopher E. Wittner, Bartlesville, OK (US);
Inventors:
Richard M. Buck, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
Christopher E. Wittner, Bartlesville, OK (US);
Assignee:
Chevron Philips Chemical Company LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/6592 (2006.01); C08F 4/6192 (2006.01); C08F 4/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides polymerization processes utilizing an ansa-metallocene catalyst system for the production of olefin polymers. Polymers produced from the polymerization processes have properties that vary based upon the presence or the absence of hydrogen and/or comonomer in the polymerization process.