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:
Aug. 28, 2012
Filed:
Sep. 01, 2009
Applicants:
Xiaoliang Gao, Calgary, CA;
Charles Ashton Garret Carter, Calgary, CA;
Lee Douglas Henderson, Calgary, CA;
Inventors:
Xiaoliang Gao, Calgary, CA;
Charles Ashton Garret Carter, Calgary, CA;
Lee Douglas Henderson, Calgary, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/02 (2006.01); C07C 2/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A new P—N—P ligand is useful in ethylene oligomerizations. In combination with i) a source of chromium and ii) an activator such as methylalumoxane; the ligand of this invention may be used to prepare an oligomer product that contains a mixture of hexenes and octenes. The hexenes and octenes produced with this ligand contain very low levels of internal olefins when produced under preferred reaction conditions.