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. 29, 2011
Filed:
Dec. 13, 2007
Lily J. Ackerman, San Francisco, CA (US);
Gary Michael Diamond, Menlo Park, CA (US);
Keith Anthony Hall, San Jose, CA (US);
James M. Longmire, San Jose, CA (US);
Vince J. Murphy, San Jose, CA (US);
Dawn E. Verdugo, Kansas City, MO (US);
Lily J. Ackerman, San Francisco, CA (US);
Gary Michael Diamond, Menlo Park, CA (US);
Keith Anthony Hall, San Jose, CA (US);
James M. Longmire, San Jose, CA (US);
Vince J. Murphy, San Jose, CA (US);
Dawn E. Verdugo, Kansas City, MO (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a chromium based catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl thioether compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.