Additives and lubricant formulations for providing friction modification
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10M-129/26
C10M-125/00
출원번호
UP-0280696
(2005-11-16)
등록번호
US-7709423
(2010-06-03)
발명자
/ 주소
Esche, Jr., Carl K.
Devlin, Mark T.
Jao, Tze-Chi
출원인 / 주소
Afton Chemical Corporation
대리인 / 주소
Luedeka, Neely & Graham, PC
인용정보
피인용 횟수 :
1인용 특허 :
117
초록▼
Lubricated surfaces, lubricant compositions for lubricating a surface, and methods for reducing friction coefficients in lubricants. The lubricated surface is provided by a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble titanium
Lubricated surfaces, lubricant compositions for lubricating a surface, and methods for reducing friction coefficients in lubricants. The lubricated surface is provided by a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble titanium compound effective to provide a reduction in the coefficient of friction of the lubricant composition greater than a reduction in the coefficient of friction of the lubricant composition devoid of the hydrocarbon soluble titanium compound.
대표청구항▼
What is claimed is: 1. A lubricated surface comprising a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble titanium compound effective to provide a reduction in the coefficient of friction of the lubricant composition greater than
What is claimed is: 1. A lubricated surface comprising a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble titanium compound effective to provide a reduction in the coefficient of friction of the lubricant composition greater than a reduction in the coefficient of friction of the lubricant composition devoid of the hydrocarbon soluble titanium compound, wherein the hydrocarbon soluble titanium compound is derived from a titanium alkoxide and a carboxylic acid selected from the group consisting of a non-linear mono-carboxylic acid and a carboxylic acid having more than 22 up to 25 carbon atoms, and wherein the amount of hydrocarbon soluble titanium compound provides an amount of titanium ranging from about 10 to about 1500 ppm to the lubricant composition. 2. The lubricated surface of claim 1, wherein the lubricated surface comprises an engine drive train. 3. The lubricated surface of claim 1, wherein the lubricated surface comprises an internal surface or component of an internal combustion engine. 4. The lubricated surface of claim 1, wherein the lubricated surface comprises an internal surface or component of a compression ignition engine. 5. The lubricated surface of claim 1, wherein the amount of hydrocarbon soluble titanium compound provides an amount of titanium ranging from above about 50 to about 500 ppm in the lubricant composition. 6. The lubricated surface of claim 1, wherein the hydrocarbon soluble titanium compound comprises a reaction product of a titanium isopropoxide and neodecanoic acid. 7. The lubricated surface of claim 1, wherein the hydrocarbon soluble titanium compound comprises a titanium carboxylate derived from a non-linear mono-carboxylic acid containing at least about 6 carbon atoms. 8. A motor vehicle comprising the lubricated surface of claim 1. 9. The vehicle of claim 8, wherein the amount of hydrocarbon soluble titanium compound provides from above about 50 to about 500 parts per million titanium in the lubricant. 10. A heavy duty diesel engine having moving parts and containing a lubricant for lubricating the moving parts, the lubricant comprising an oil of lubricating viscosity, a first friction modifier selected from the group consisting essentially of an organomolybdenum friction modifier, a glycerol ester friction modifier, and mixtures thereof, and a second friction modifier comprising an amount of at least one hydrocarbon soluble titanium compound effective to provide a reduction in the friction coefficient of the lubricant greater than a reduction in the friction coefficient of the lubricant devoid of the hydrocarbon soluble titanium compound, wherein the titanium compound is derived from a titanium alkoxide and carboxylic acid selected from the group consisting of a non-linear mono-carboxylic acid and a carboxylic acid having more than 22 up to 25 carbon atoms, and wherein the compound is essentially devoid of sulfur and phosphorus atoms, and wherein the amount of hydrocarbon soluble titanium compound provides an amount of titanium ranging from about 10 to about 1500 ppm to the lubricant. 11. The vehicle of claim 10, wherein the hydrocarbon soluble titanium compound comprises a reaction product of a titanium isopropoxide and neodecanoic acid. 12. A fully formulated lubricant composition comprising a base oil component of lubricating viscosity, a first friction modifier selected from the group consisting essentially of an organomolybdenum friction modifier, a glycerol ester friction modifier, and mixtures thereof, and a second friction modifier comprising an amount of hydrocarbon soluble titanium-containing agent effective to provide a reduction in the coefficient of friction of the lubricant composition greater than a reduction in the coefficient of friction of the lubricant composition devoid of the hydrocarbon soluble titanium-containing agent, wherein the titanium-containing agent is a reaction product of a titanium alkoxide and a carboxylic acid selected from the group consisting of a non-linear mono-carboxylic acid and a carboxylic acid having more than 22 up to 25 carbon atoms, and wherein the titanium-containing agent is essentially devoid of sulfur and phosphorus atoms, and wherein the amount of hydrocarbon soluble titanium-containing agent provides an amount of titanium ranging from about 10 to about 1500 ppm to the lubricant composition. 13. The lubricant composition of claim 12 wherein the lubricant composition comprises a low ash, low sulfur, and low phosphorus lubricant composition suitable for compression ignition engines such that the finished oil contains about 0.7 wt % or less sulfur and about 0.12 wt % or less phosphorus. 14. The lubricant composition of claim 12, wherein the hydrocarbon soluble titanium-containing agent comprises a reaction product of a titanium alkoxide and neodecanoic acid. 15. The lubricant composition of claim 12, wherein the amount of hydrocarbon soluble titanium-containing agent provides from above about 50 to about 500 parts per million titanium to the lubricant composition. 16. A method of reducing the friction coefficient of engine lubricant compositions during operation of an engine containing the lubricant composition, comprising contacting the engine parts with a lubricant composition comprising a base oil of lubricating viscosity and an amount of a hydrocarbon soluble titanium compound effective to provide a reduction in the friction coefficient of the lubricant composition greater than a reduction in the friction coefficient of the lubricant composition devoid of the hydrocarbon soluble titanium compound, wherein the hydrocarbon soluble titanium compound is derived from a titanium alkoxide and a carboxylic acid selected from the group consisting of a non-linear mono-carboxylic acid and a carboxylic acid having more than 22 up to 25 carbon atoms, and wherein the titanium compound is substantially devoid of sulfur, and phosphorus atoms, and wherein the amount of hydrocarbon soluble titanium compound provides an amount of titanium ranging from above about 10 to about 1500 ppm in the lubricant composition. 17. The method of claim 16 wherein the engine comprises a heavy duty diesel engine. 18. The method of claim 16, wherein the hydrocarbon soluble titanium compound comprises a reaction product of a titanium isopropoxide and neodecanoic acid. 19. The method of claim 16, wherein the lubricant composition further comprises a second friction modifier selected from the group consisting essentially of an organomolybdenum friction modifier, a glycerol ester friction modifier, and a mixture thereof. 20. A method of lubricating moving parts of an engine with a lubricating oil, the method comprising using as the lubricating oil for one or more moving parts a lubricant composition containing a base oil, a first friction modifier selected from the group consisting essentially of an organomolybdenum friction modifier, a glycerol ester friction modifier, and mixtures thereof, and a second friction modifier comprising a reaction product of a titanium alkoxide and a carboxylic acid selected from the group consisting of a non-linear mono-carboxylic acid and a carboxylic acid having more than 22 up to 25 carbon atoms, wherein the second friction modifier is effective to provide from about 10 to about 1500 parts per million titanium in the lubricating oil, and wherein the second friction modifier is substantially devoid of sulfur, and phosphorus atoms. 21. The method of claim 20, wherein the moving parts comprise moving parts of an engine. 22. The method of claim 21, wherein the engine is selected from the group consisting essentially of a compression ignition engine and a spark ignition engine. 23. The method of claim 21, wherein the engine includes an internal combustion engine having a crankcase and wherein the lubricating oil comprises a crankcase oil present in the crankcase of the engine. 24. The method of claim 21, wherein the lubricating oil comprises a drive train lubricant present in a drive train of a vehicle containing the engine.
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