High performance metal working oil
AssigneeExxon Research & Engineering Co.
InventorsWilliam Donald Hewson, Gerald Keith Gerow
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Abstract
The present invention is a non-emulsifying, chlorine-free metal working or cutting oil which exhibits the same or superior performance as heretofore exhibited by chlorine containing fluids. The metal working oil contains cosulfurized olefins, polysulfurized hydrocarbon, phosphate esters, animal triglycerides, high molecular weight polyolefins in a mineral oil basestock. The oil may also contain metal deactivators, antioxidants and preservatives such as BHT, and mixtures of the above.
Claims6
A chlorine free metal working fluid comprising a major amount of a base oil of lubricating viscosity and a minor amount of additives comprising a mixture of sulfurized olefins, polysulfurized hydrocarbons, phosphate esters, and refined triglycerides, wherein the polysulfurized hydrocarbons are of the formula
- R.sub.1 S.sub.n R.sub.2
- wherein R.sub.1 and R.sub.2 are the same or different C.sub.3 -C.sub.30 olefin, and n averages between 2 and 6.
A method for lubricating metal working machines and work pieces comprising using a chlorine free lubricant comprising a major amount of a base oil of lubricating viscosity and a minor amount of additives comprising a mixture of sulfurized olefins, polysulfurized hydrocarbons, phosphate esters, and refined triglycerides, wherein the polysulfurized hydrocarbons are of the formula
- R.sub.1 S.sub.n R2
- wherein R.sub.1 and R.sub.2 are the same or different C.sub.3 -C.sub.30 olefin, and n averages between 2 and 6.
Dependencies are inferred from the claim text.