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. 22, 2022
Filed:
Nov. 08, 2021
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Steven M. Bischof, Humble, TX (US);
Orson L. Sydora, Sugar Land, TX (US);
Daniel H. Ess, Provo, UT (US);
Uriah J. Kilgore, Kennewick, WA (US);
Doo-Hyun Kwon, Royersford, PA (US);
Chevron Phillips Chemical Company, LP, The Woodlands, TX (US);
Abstract
The present disclosure relates to a catalyst system comprising i) (a) an N-phosphinyl bicyclic amidine chromium salt or (b) a chromium salt and an N-phosphinyl bicyclic amidine and ii) an organoaluminum compound. The present disclosure also relate to a process comprising: a) contacting i) ethylene; ii) a catalyst system comprising (a) an N-phosphinyl bicyclic amidine chromium salt complex or (b) a chromium salt and an N-phosphinyl bicyclic amidine; ii) an organoaluminum compound, and iii) optionally an organic reaction medium; and b) forming an oligomer product in a reaction zone.