Accession Number : ADD001137

Title :   Hydraulic and Lubricating Oil Composition.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Brown,Charles L

Report Date : 18 Mar 1975

Pagination or Media Count : 4

Abstract : Conventional hydraulic fluids and lubricating oils permit corrosion of metal surfaces in the presence of water. Certain oils used by industry and the military have inhibitors which are designed to provide rust protection but even these have some shortcomings. This invention provides a hydraulic and lubricating oil composition which prevents corrosion of metal surfaces which are exposed to fresh water or sea water. This is accomplished by providing a composition comprising petroleum oil, 2,6-ditert butyl p-cresol, neutral calcium petroleum sulfonate, polyoxyethylene alkyl aryl ether which is the reaction product of ethylene oxide and nonyl phenol in a ratio of between 3:1 and 7:1 and a constituent selected from the group consisting of sorbitan monooleate and a high molecular weight emulsifier.

Descriptors :   *Patents, *Lubricating oils, *Corrosion inhibition, Formulations, Sulfonates, Phenols, Fatty acid esters

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE