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. 27, 2012
Filed:
Jun. 10, 2009
John M. Rosenbaum, Richmond, CA (US);
Brent K. Lok, San Francisco, CA (US);
Kathy A. Helling, Santa Rosa, CA (US);
Ryan J. Schexnaydre, Richmond, CA (US);
Scott C. Deskin, Alameda, CA (US);
Susan M. Abernathy, Hercules, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Brent K. Lok, San Francisco, CA (US);
Kathy A. Helling, Santa Rosa, CA (US);
Ryan J. Schexnaydre, Richmond, CA (US);
Scott C. Deskin, Alameda, CA (US);
Susan M. Abernathy, Hercules, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
We provide a base oil comprising hydrocarbons with consecutive numbers of carbon atoms. The base oil has a boiling range from 700 to 925° F. (371 to 496° C.), a VI from 105 to 119, and either a Noack volatility less than 18 wt % or a CCS VIS at −25° C. less than 1500 mPa·s. The base oil may have a ratio of Noack Volatility to CCS VIS at −25° C. multiplied by 100 from 0.80 to 1.55.