Patent · US Expired

Lubricating oil formulations

US6034040A · kind A · utility

45Cited by
7References
50Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 3, 1998
Grant dateMar 7, 2000
Priority date
Expiry dateAug 3, 2018

Classification

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

Abstract

Lubricating oil compositions having excellent thermal and oxidative stability, wear control, copper corrosion control and compatibility with seal materials comprising a mineral oil having a) a Viscosity Index of greater than 110 and an aniline point of greater than 110.degree. C. and/or b) a linear+single ring paraffin content of greater than 68 wt %, and at least one polymer selected from olefin (co) polymer(s), polyalkyl (meth) acrylate(s) and mixtures thereof. The lubricating oil compositions are particularly useful as manual transmission and axle lubricants.

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