Diamine carboxylates and lubricant compositions containing same
AssigneeMobil Oil Corporation
InventorAndrew G. Horodysky
Life of this patent
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Abstract
N-Hydrocarbyl hydrocarbylenediamine carboxylates, which can be made by the reaction of the appropriate diamine and organic monocarboxylic acid, demonstrate friction reducing properties when formulated into lubricants, particularly lubricating oils, and fuel consumption reduction properties when formulated into such lubricants or into fuels.
Claims25
A compound of the formula ##STR3## wherein R, R.sup.1, R.sup.3 and R.sup.4 with the N groups making up a diamino group are hydrogen or a C.sub.6 to C.sub.20 hydrocarbyl group, at least one of R and R.sup.1 being a hydrocarbyl group, R.sup.2 is a C.sub.2 to C.sub.4 hydrocarbylene group, R.sup.5 is a component of at least one acid group and is a C.sub.6 to C.sub.20 hydrocarbyl group, x is 0 or 1 and y is 0 to 1, at least one of x and y being 1.
A lubricant comprising a major portion of a lubricant and an antifriction amount of a compound of the formula ##STR8## wherein R, R.sup.1, R.sup.3 and R.sup.4 with the N groups making up a diamino group are hydrogen or a C.sub.6 to C.sub.20 hydrocarbyl group, at least one of R and R.sup.1 being a hydrocarbyl group, R.sup.2 is a C.sub.2 to C.sub.4 hydrocarbylene group, R.sup.5 is a component of at least one acid group and is a C.sub.6 to C.sub.20 hydrocarbyl group, x is 0 or 1 and y is 0 or 1, at least one of x and y being 1.
A method for decreasing fuel comsumption in an internal engine by lubricating, same with a composition comprising a major proportion of lubricant or liquid fuel and an antifriction amount of a compound of the formula ##STR13## wherein R, R.sup.1, R.sup.3 and R.sup.4 are hydrogen or a C.sub.6 to C.sub.20 hydrocarbyl group, at least one of R and R.sup.1 being a hydrocarbyl group, R.sup.2 is a C.sub.2 to C.sub.4 hydrocarbylene group, R.sup.5 a C.sub.6 to C.sub.20 hydrocarbyl group, x is 0 or 1 and y is 0 or 1, at least one of x and y being 1.
Dependencies are inferred from the claim text.