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:
Jul. 28, 2020
Filed:
May. 27, 2016
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Jian Yang, Houston, TX (US);
Lubin Luo, Houston, TX (US);
Steven D. Brown, League City, TX (US);
Xiongdong Lian, Shanghai, CN;
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 17/00 (2006.01); C08F 4/6592 (2006.01); C08F 10/06 (2006.01); C08F 110/06 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 10/06 (2013.01); C07F 17/00 (2013.01); C08F 110/06 (2013.01); C08F 4/65912 (2013.01); C08F 2500/12 (2013.01); C08F 2500/15 (2013.01);
Abstract
This invention relates to supported metallocene catalyst systems for polymerization, the catalyst systems comprising asymmetrically substituted indenyl groups, high surface area supports, and aluminoxane activators. This invention also relates to methods for polymerizing olefins, including methods for producing isotactic polypropylene.