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:
Apr. 17, 2018
Filed:
Oct. 11, 2016
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Ted H. Cymbaluk, Seabrook, TX (US);
Max P. McDaniel, Bartlesville, OK (US);
Qing Yang, Bartlesville, OK (US);
Dennis L. Holtermann, Conroe, TX (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 10/00 (2006.01); C08F 210/16 (2006.01); C08F 4/659 (2006.01); C08F 4/52 (2006.01);
U.S. Cl.
CPC ...
C08F 210/16 (2013.01); C08F 4/65904 (2013.01); C08F 4/65916 (2013.01); C08F 4/65925 (2013.01); C08F 4/65927 (2013.01); C08F 4/52 (2013.01); C08F 4/65912 (2013.01); C08F 10/00 (2013.01); C08F 2500/12 (2013.01);
Abstract
Methods for preparing single and dual metallocene catalyst systems containing an activator-support are disclosed. These methods can include precontacting of the activator-support and an organoaluminum compound, as well as sequential contacting of two different metallocene compounds to form a dual metallocene catalyst system.