Friction reducing additives for fuels and lubricants
AssigneeMobil Oil Corporation
InventorsHalou Oumar-Mahamat, James Thomas Carey
Life of this patent
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Abstract
The invention provides certain hydroxyacetamides which have been prepared by reacting primary etheramines with hydroxycarboxylic acid, particularly etheramine glycolamide, and their use as friction reducing additives in fuels and lubes.
Claims9
A fuel composition comprising an internal combustion engine fuel and a friction reducing amount of a non-borated product obtained by reacting
- R.sub.1 (OR.sub.2).sub.a NH.sub.2
- wherein R.sub.1 is C.sub.1 to C.sub.60 alkyl,
- R.sub.2 is C.sub.1 to C.sub.4 alkylene,
- a is 1 to 12,
- and a hydroxycarboxylic acid selected from the group consisting of hydroxy(C.sub.1 -C.sub.4)alkylcarboxylic acids and dihydroxyalkylcarboxylic acids.
A fuel additive concentrate comprising a friction reducing amount of a non-borated reaction product of the following formula
- R.sub.1 (OR.sub.2).sub.a NHCOR.sub.3 OH
- wherein R.sub.1 is hydrocarbyl or C.sub.1 to C60 alkyl,
- R.sub.2 is C.sub.1 to C.sub.4 alkylene,
- R.sub.3 is C.sub.1 to C.sub.4 alkylene or substituted alkylene or cycloalkyl,
- a is 1 to 12,
- and at least one detergent.
A method for reducing and/or preventing friction in the operation of an internal combustion engine which comprises fueling said engine with a liquid fuel composition comprising per 1000 barrels of fuel between about 25 to about 250 pounds of a non-borated product obtained by reacting
- R.sub.1 (OR.sub.2).sub.a NH.sub.2
- wherein R.sub.1 is hydrocarbyl or C.sub.1 to C.sub.60 alkyl,
- R.sub.2 is C.sub.1 to C.sub.4 alkylene,
- a is 1 to 12,
- and a hydroxycarboxylic acid selected from the group consisting of hydroxy(C.sub.1 -C.sub.4)alkylcarboxylic acids and dihydroxyalkylcarboxylic acids.
Dependencies are inferred from the claim text.