Patent · US Expired

High viscosity index lubricant fluid

US5306851A · kind A · utility

29Cited by
26References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 23, 1992
Grant dateApr 26, 1994
Priority date
Expiry dateNov 23, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2040/08
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The invention provides a composition comprising at least about 10 different diamondoid compounds selected from the group consisting of methyl-substituted and ethyl-substituted adamantane, diamantane, and triamantane, wherein each of said selected diamondoid compounds comprises no more than about 10 weight percent of said composition. The composition is useful as high quality lubricating fluid and exhibits the unusual combination of high Viscosity Index and very low pour point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.