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:
Nov. 18, 2025
Filed:
Apr. 19, 2021
Nova Chemicals (International) S.a., Fribourg, CH;
Xiaoliang Gao, Calgary, CA;
Cheng Fan, Calgary, CA;
Janelle Smiley-Wiens, Calgary, CA;
Brian Molloy, Airdrie, CA;
P. Scott Chisholm, Calgary, CA;
Charles Carter, Calgary, CA;
James Goettel, Calgary, CA;
NOVA Chemicals (International) S.A., Fribourg, CH;
Abstract
Provided in this disclosure are titanium complexes that contain 1) a cyclopentadienyl ligand; 2) an adamantyl-phosphinimine ligand; and 3) at least one activatable ligand. The use of such a complex, in combination with an activator, as an olefin polymerization catalyst is demonstrated. The catalysts are effective for the copolymerization of ethylene with an alpha olefin (such as 1-butene, 1-hexene or 1-octene) and enable the production of high molecular weight copolymers (Mw greater than 25,000) at high productivity under solution polymerization conditions.