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:
May. 26, 2026
Filed:
Mar. 15, 2021
Applicant:
Nova Chemicals (International) S.a., Fribourg, CH;
Inventors:
Assignee:
NOVA CHEMICALS (INTERNATIONAL) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/659 (2006.01); C08F 210/16 (2006.01);
U.S. Cl.
CPC ...
C08F 4/659 (2013.01); C08F 210/16 (2013.01);
Abstract
A new olefin polymerization catalyst is ligated with a tetradentate ligand having a phenoxy/amino/ether/phenoxy (O/N/O/O) atom donor set. The new polymerization catalyst which is based on zirconium or hafnium produces an ethylene copolymer with high molecular weight and high comonomer incorporation levels.