Patent · US Expired

Phosphorus-containing friction modifiers for functional fluids

US3932290A · kind A · utility

28Cited by
9References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 4, 1973
Grant dateJan 13, 1976
Priority date—
Expiry dateOct 4, 1993

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2050/10
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Compositions prepared by the reaction of a di-(lower alkyl) phosphite with a C.sub.10.sub.-20 epoxide in the presence of a strongly alkaline reagent are useful as friction-reducing additives in functional fluids, especially automatic transmission fluids.

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