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:
Jun. 23, 2020
Filed:
Apr. 18, 2016
Applicant:
Univation Technologies, Llc, Houston, TX (US);
Inventors:
Catherine Anne Faler, Houston, TX (US);
Kevin P. Ramirez, Houston, TX (US);
Assignee:
Univation Technologies, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 15/14 (2006.01); C07C 41/01 (2006.01); C07F 5/02 (2006.01); C07C 41/30 (2006.01); C07F 7/00 (2006.01); C07B 39/00 (2006.01); C07B 51/00 (2006.01); C07C 15/20 (2006.01); C07C 43/23 (2006.01);
U.S. Cl.
CPC ...
C07C 15/14 (2013.01); C07B 39/00 (2013.01); C07B 51/00 (2013.01); C07C 15/20 (2013.01); C07C 41/30 (2013.01); C07C 43/23 (2013.01); C07F 5/025 (2013.01); C07F 7/003 (2013.01); C07C 2523/44 (2013.01); C07C 2531/24 (2013.01); C07C 2602/10 (2017.05);
Abstract
New methods for preparing bridged bi-aromatic ligands are disclosed. The methods employ aryl coupling of unprotected phenols. The ligands may be used to prepare transition metal compounds useful as catalysts in olefin polymerization.