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:
Mar. 26, 2013
Filed:
Aug. 24, 2007
Laughlin G. Mccullough, League City, TX (US);
Francis Charles Rix, League City, TX (US);
John F. Walzer, Seabrook, TX (US);
Lily Joy Ackerman, San Francisco, CA (US);
Keith Anthony Hall, San Jose, CA (US);
Gary Michael Diamond, Menlo Park, CA (US);
Victor Oswaldo Nava-salgado, Cupertino, CA (US);
Laughlin G. McCullough, League City, TX (US);
Francis Charles Rix, League City, TX (US);
John F. Walzer, Seabrook, TX (US);
Lily Joy Ackerman, San Francisco, CA (US);
Keith Anthony Hall, San Jose, CA (US);
Gary Michael Diamond, Menlo Park, CA (US);
Victor Oswaldo Nava-Salgado, Cupertino, CA (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This invention relates to a method to selectively oligomerize olefins comprising contacting olefins with: 1) at least one diaryl-substituted diphosphine ligand; 2) a chromium metal precursor; and 3) optionally, one or more activators. In a particular embodiment, the method for selectively oligomerizing olefins includes trimerizing ethylene to selectively form 1-hexene.