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US 2006/0223722 A1Published application
Dithiocarbamyl beta-hydroxy fatty acid esters as additives for lubricants and fuels
AssigneeChemtura Corporation
InventorRobert Rowland
Life of this patent
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Abstract
Fuels, especially hydrocarbon fuels, and lubricants, especially lubricating oils, contain dithiocarbamyl β-hydroxy fatty acid esters, a class of anti-corrosion, anti-wear, anti-fatigue, and extreme pressure additives that are derived from epoxidized fatty acid esters. The additives exhibit synergistic anti-wear activity in combination with phosphorus containing additives.
Claims30
A composition comprising at least one dithiocarbamyl β-hydroxy fatty acid ester having formula I or II:
- wherein m=1 to about 20, R1 is a hydrocarbyl group possessing from 1 to about 50 carbon atoms with or without substituents selected from alkyl, cycloalkyl, alkenyl, aryl and alkoxy groups, and with or without heteroatoms selected from oxygen, nitrogen, and sulfur, R2 is a hydrocarbyl group possessing from 1 to about 20 carbon atoms with or without olefin, dialkyldithiocarbamyl, OH, ether, oxirane, SH, or thiirane functionalities, R3 and R4 can be the same or different and are independently hydrocarbyl groups possessing from 1 to about 12 carbon atoms.
A composition comprising:
- a) an oil of lubricant viscosity;
- and
- b) at least one dithiocarbamyl β-hydroxy fatty acid ester having formula I or II:
- wherein m=1 to about 20, R1 is a hydrocarbyl group possessing from 1 to about 50 carbon atoms with or without substituents selected from alkyl, cycloalkyl, alkenyl, aryl and alkoxy groups, and with or without heteroatoms selected from oxygen, nitrogen, and sulfur, R2 is a hydrocarbyl group possessing from 1 to about 20 carbon atoms with or without olefin, dialkyldithiocarbamyl, OH, ether, oxirane, SH, or thiirane functionalities, R3 and R4 can be the same or different and are independently hydrocarbyl groups possessing from 1 to about 12 carbon atoms.
1 more element
A composition comprising:
- a) a hydrocarbon fuel;
- and
- b) at least one dithiocarbamyl β-hydroxy fatty acid ester having formula I or II:
- wherein m=1 to about 20, R1 is a hydrocarbyl group possessing from 1 to about 50 carbon atoms with or without substituents selected from alkyl, cycloalkyl, alkenyl, aryl and alkoxy groups, and with or without heteroatoms selected from oxygen, nitrogen, and sulfur, R2 is a hydrocarbyl group possessing from 1 to about 20 carbon atoms with or without olefin, dialkyldithiocarbamyl, OH, ether, oxirane, SH, or thiirane functionalities, R3 and R4 can be the same or different and are independently hydrocarbyl groups possessing from 1 to about 12 carbon atoms.
1 more element
Dependencies are inferred from the claim text.