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. 20, 2021
Filed:
Sep. 26, 2017
Applicant:
Univation Technologies, Llc, Houston, TX (US);
Inventors:
Roger L. Kuhlman, Freeport, TX (US);
Mahsa McDougal, Freeport, TX (US);
Rachel E. Brooner, Midland, MI (US);
Matthew M. Yonkey, Midland, MI (US);
Assignee:
Univation Technologies, LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 17/00 (2006.01); C08F 4/6592 (2006.01); C08F 210/16 (2006.01); C08F 10/02 (2006.01);
U.S. Cl.
CPC ...
C08F 10/02 (2013.01); C07F 17/00 (2013.01); C08F 4/65925 (2013.01); C08F 210/16 (2013.01); C08F 2420/03 (2013.01);
Abstract
Embodiments of the present disclosure directed towards polymerization catalysts having improved ethylene enchainment and/or improved catalyst productivity. As an example, the present disclosure provides a polymerization catalyst of Formula (I), wherein each of Rto Ris independently a Cto Calkyl, aryl or aralkyl group, or a hydrogen, wherein at least one of Rto Ris not a hydrogen, wherein M is a Group 4 metal, and wherein, each X is independently a halide, Cto Calkyl, aralkyl or hydrogen.