Patent · US Expired

Extreme pressure lubricating compositions

US4218331A · kind A · utility

4Cited by
8References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 24, 1978
Grant dateAug 19, 1980
Priority date
Expiry dateJul 24, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2070/02
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A sperm oil substitute, having extreme pressure and anti-wear properties consisting of a lubrication composition comprising a major amount of a lubrication oil and a minor amount of an extreme pressure and anti-wear additive, comprising (I) a diester of the condensation product of (A) a dicarboxylic acid or a dicarboxylic acid anhydride, and (B) a linear unsaturated alcohol; and optionally, in combination with, (II) a linear unsaturated alcohol, wherein from about 6 weight percent to about 20 weight percent of said combined diester and linear alcohol comprising the sulfide moiety.

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