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. 25, 2005
Filed:
Oct. 08, 2002
Jack Wayne Johnson, Clinton, NJ (US);
Adeana Richelle Bishop, Baton Rouge, LA (US);
William Berlin Genetti, Baton Rouge, LA (US);
Loren Leon Ansell, Baton Rouge, LA (US);
Rocco Anthony Fiato, Basking Ridge, NJ (US);
Jack Wayne Johnson, Clinton, NJ (US);
Adeana Richelle Bishop, Baton Rouge, LA (US);
William Berlin Genetti, Baton Rouge, LA (US);
Loren Leon Ansell, Baton Rouge, LA (US);
Rocco Anthony Fiato, Basking Ridge, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A synthetic, isoparaffinic heavy hydrocarbon composition useful as a heavy lubricant base stock contains hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100° C., at which temperature its kinematic viscosity is above 8 cSt and has respective initial and end boiling points of at least 850 and 1000° F. (454 and 538° C.). The branching index BI and the branching proximity CH>4 of the isoparaffinic hydrocarbon molecules, are such that:BI−0.5(CH>4)<15; and  (a)BI+0.85(CH>4)<45;  (b)as measured over the hydrocarbon composition as a whole.