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:
Feb. 21, 2017
Filed:
Nov. 19, 2015
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Qing Yang, Bartlesville, OK (US);
Jeff F. Greco, Tulsa, OK (US);
Max P. McDaniel, Bartlesville, OK (US);
Youlu Yu, Bartlesville, OK (US);
Gary L. Glass, Dewey, OK (US);
Tony R. Crain, Niotaze, KS (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group, and a single atom bridged metallocene compound with a fluorenyl group.