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:
May. 16, 2017
Filed:
Sep. 09, 2015
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Jeff F Greco, Tulsa, OK (US);
Qing Yang, Bartlesville, OK (US);
Vivek Rohatgi, Owasso, OK (US);
Mark L. Hlavinka, Tulsa, 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 4/653 (2006.01); C08F 4/6592 (2006.01); C08F 210/02 (2006.01); C08F 210/14 (2006.01); C08F 4/659 (2006.01); C08F 210/16 (2006.01);
U.S. Cl.
CPC ...
C08F 210/14 (2013.01); C08F 4/65904 (2013.01); C08F 4/65916 (2013.01); C08F 210/02 (2013.01); C08F 210/16 (2013.01);
Abstract
Methods for controlling the die swell of an olefin polymer produced using a dual catalyst system are disclosed. The die swell of the olefin polymer can be increased or decreased as a function of the catalyst weight ratio and the reactant molar ratio used during the olefin polymerization process.