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:
Jan. 12, 2016
Filed:
Sep. 12, 2012
Richard Wayne Martin, Woolwich Township, NJ (US);
Douglas Edward Deckman, Mullica Hill, NJ (US);
Kevin John Kelly, Mullica Hill, NJ (US);
Craig Janzen Emett, Houston, TX (US);
Mark Paul Hagemeister, Houston, TX (US);
Bruce Allan Harrington, Houston, TX (US);
Chon-yie Lin, Houston, TX (US);
Phillip Thomas Matsunaga, Houston, TX (US);
Charles James Ruff, Houston, TX (US);
Kevin Bruce Stavens, Houston, TX (US);
Richard Wayne Martin, Woolwich Township, NJ (US);
Douglas Edward Deckman, Mullica Hill, NJ (US);
Kevin John Kelly, Mullica Hill, NJ (US);
Craig Janzen Emett, Houston, TX (US);
Mark Paul Hagemeister, Houston, TX (US);
Bruce Allan Harrington, Houston, TX (US);
Chon-Yie Lin, Houston, TX (US);
Phillip Thomas Matsunaga, Houston, TX (US);
Charles James Ruff, Houston, TX (US);
Kevin Bruce Stavens, Houston, TX (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
This invention is directed to lubricating compositions comprising a first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at 100° C. of from 3.2 cSt to 3.8 cSt and obtained by a process comprising: (a) contacting a catalyst, an activator, and a monomer in a first reactor to obtain a first reactor effluent, the effluent comprising a dimer product, a trimer product, and optionally a higher oligomer product, (b) feeding at least a portion of the dimer product to a second reactor, (c) contacting said dimer product with a second catalyst, a second activator, and optionally a second monomer in the second reactor, (d) obtaining a second reactor effluent, the effluent comprising at least a trimer product, and (e) hydrogenating at least the trimer product of the second reactor effluent.