Patent · US Expired

Cyclic phosphate additives and their use in oleaginous compositions

US4776969A · kind A · utility

21Cited by
42References
85Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 1986
Grant dateOct 11, 1988
Priority date
Expiry dateMar 31, 2006

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2040/28
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The present invention provides a novel cyclic phosphate such as 1,3-dioxa-2-phospha-6-thia-cyclooctane-2-(dodecylthiodi(ethyleneoxy)-2-oxi de, and its use as an anti-wear, anti-oxidant, and/or friction modifying agent for oleaginous compositions such as fuels, and lubricating oils particularly automatic transmission fluids. A new use of overbased metal phenates and/or sulfonates as friction stability promoters for conventional friction modifying agents is also provided.

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