Dithiocarbamate-derived ethers as multifunctional additives
AssigneeMobil Corporation
InventorsLiehpao O. Farng, Andrew G. Horodysky, Richard N. Nipe
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Abstract
Dialkyl dithiocarbamate-derived organic ethers have been found to be effective antiwear/antioxidant additives for lubricants or fuels.
Claims12
An improved fuel composition comprising a major proportion of a liquid hydrocarbon or oxygenated fuel or mixtures thereof and a minor multifunctional antiwear, extreme pressure, antioxidant and corrosion inhibiting proportion of an N,N-dihydrocarbyl dithiocarbamate-derived organic ether additive product of reaction which has the following formula:
- ##STR4## where R.sub.1, R.sub.2 are hydrogen, or C.sub.1 to about C.sub.60 hydrocarbyl;
- R.sub.3 and R.sub.4 are hydrogen, or C.sub.1 to about C.sub.18 hydrocarbyl;
- and hydrocarbyl is selected from a member or the group consisting of alkyl, alkenyl, aryl, alkaryl, aralkyl which optionally contains O, N, S or mixtures thereof.
A process of preparing a multifunctional antiwear, extreme pressure, antioxidant and corrosion inhibiting additive product which is prepared in the following manner:
- ##STR6## where R.sub.1, R.sub.2 are hydrogen, or C.sub.1 to about C.sub.60 hydrocarbyl;
- R.sub.3 and R.sub.4 are hydrogen, or C.sub.1 to about C.sub.18 hydrocarbyl;
- M.sup.+ represents Na or H.sup.+ N(C.sub.2 H.sub.5).sub.3, and hydrocarbyl is selected from the group consisting of alkyl, alkenyl, aryl, alkaryl, aralkyl which may optionally contain O, N, S or mixtures thereof and wherein the reaction is carried out at temperatures varying from ambient to about 250.degree. C. under pressures varying from ambient to autogenous for a time sufficient to obtain the desired additive product of reaction and where the reaction is carried out in molar ratios of reactants varying from equimolar to more than molar to less than molar.
A multifunctional antiwear, antioxidant, extreme pressure, corrosion inhibiting additive product of reaction prepared in the following manner:
- ##STR7## where R.sub.1, R.sub.2 are hydrogen, or C.sub.1 to about C.sub.60 hydrocarbyl;
- R.sub.3 and R.sub.4 are hydrogen, or C.sub.1 to about C.sub.18 hydrocarbyl;
- M.sup.+ represents Na or H.sup.+ N(C.sub.2 H.sub.5).sub.3, and hydrocarbyl is selected from the group consisting of alkyl, alkenyl, aryl, alkaryl, aralkyl which may optionally contain O, N, S or mixtures thereof and wherein the reaction is carried out at temperatures varying from ambient to about 250.degree. C. under pressures varying from ambient or autogenous for a time sufficient to obtain the desired additive product of reaction and where the reaction is carried out in molar ratios of reactants varying from equimolar to more than molar to less than molar.
Dependencies are inferred from the claim text.