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:
Feb. 25, 2014
Filed:
Dec. 20, 2006
John M. Rosenbaum, Richmond, CA (US);
Nancy J. Bertrand, Lafayette, CA (US);
Scott C. Deskin, Alameda, CA (US);
Brent K. Lok, San Francisco, CA (US);
Shuibo Xie, Berkeley, CA (US);
Stephen J. Miller, San Francisco, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Nancy J. Bertrand, Lafayette, CA (US);
Scott C. Deskin, Alameda, CA (US);
Brent K. Lok, San Francisco, CA (US);
Shuibo Xie, Berkeley, CA (US);
Stephen J. Miller, San Francisco, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A lubricant base oil blend having a wt % Noack volatility less than 29, comprising a) a light base oil fraction having a kinematic viscosity at 100° C. between 1.5 and 3.6, and a wt % Noack volatility both between 0 and 100 and less than a Noack Volatility Factor, and b) a petroleum-derived base oil fraction. A process to make the lubricant base oil blend having a wt % Noack volatility less than 29. Also, a pour point depressed lubricant base oil blend having a Brookfield viscosity at −40° C. of less than 18,000 cP, comprising the light base oil fraction, a petroleum-derived base oil fraction, and a pour point depressant.