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:
Oct. 24, 2017
Filed:
Sep. 12, 2012
Craig J. Emett, Houston, TX (US);
Mark P. Hagemeister, Houston, TX (US);
Wenning W. Han, Houston, TX (US);
Bruce A. Harrington, Houston, TX (US);
Phillip T. Matsunaga, Houston, TX (US);
Charles J. Ruff, Houston, TX (US);
Kevin B. Stavens, Houston, TX (US);
Margaret M. Wu, Skillman, NJ (US);
Craig J. Emett, Houston, TX (US);
Mark P. Hagemeister, Houston, TX (US);
Wenning W. Han, Houston, TX (US);
Bruce A. Harrington, Houston, TX (US);
Phillip T. Matsunaga, Houston, TX (US);
Charles J. Ruff, Houston, TX (US);
Kevin B. Stavens, Houston, TX (US);
Margaret M. Wu, Skillman, NJ (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
This invention is directed to a poly alpha olefin (PAO) composition formed in a first oligomerization, wherein at least portions of the PAO have properties that make them highly desirable for a subsequent oligomerization. A preferred process for producing this PAO uses a single site catalyst at high temperatures without adding hydrogen to produce a low viscosity PAO with excellent Noack volatility at high conversion rates. This PAO comprises a dimer product with at least 25 wt % tri-substituted vinylene olefins wherein said dimer product is highly desirable as a feedstock for a subsequent oligomerization. This PAO also comprises trimer and optionally higher oligomer products with outstanding properties that make these products useful as lubricant basestocks following hydrogenation.