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.

Date of Patent:
Mar. 28, 2017

Filed:

Jun. 27, 2016
Applicant:

Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);

Inventors:

Mark L. Hlavinka, Tulsa, OK (US);

Errun Ding, Bartlesville, OK (US);

Paul DesLauriers, Owasso, OK (US);

Yongwoo Inn, Bartlesville, OK (US);

Lili Cui, Bartlesville, OK (US);

Qing Yang, Bartlesville, OK (US);

Ashish M. Sukhadia, Bartlesville, OK (US);

Guylaine St. Jean, North Olmsted, OH (US);

Richard M. Buck, Bartlesville, 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 210/16 (2006.01); C08L 23/08 (2006.01); C08F 4/659 (2006.01); C08F 4/69 (2006.01); C08F 210/02 (2006.01); C08J 5/00 (2006.01);
U.S. Cl.
CPC ...
C08F 210/16 (2013.01); C08F 4/65904 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08F 4/65922 (2013.01); C08F 4/65925 (2013.01); C08F 4/65927 (2013.01); C08F 4/69 (2013.01); C08F 210/02 (2013.01); C08J 5/00 (2013.01); C08L 23/0815 (2013.01); C08F 4/6592 (2013.01); C08J 2323/08 (2013.01);
Abstract

Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance.


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