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. 22, 1994
Filed:
Jun. 03, 1993
Dong-Ming Shen, Langhorne, PA (US);
Margaret M Wu, Skillman, NJ (US);
Mobil Oil Corporation, Fairfax, VA (US);
Abstract
This invention provides a method for incorporating a diamondoid compound into a lubricant stock comprising reacting at least one .alpha.-olefin containing at least six carbon atoms with at least one diamondoid compound in the presence of an acid catalyst selected from the group consisting of AlX.sub.3, BX.sub.3, and GaX.sub.3, wherein X is a halogen, together with at least one added proton-donating catalyst promoter. The invention further provides a lubricant composition comprising alkyl-substituted diamondoids wherein the ratio of linear to branched alkyl substituents is at least about 4:1 and wherein the average number of alkyl substitutions per diamondoid molecule is from about 1.5 to about 4.