CN105073963A - Lubricating oil composition for automatic transmission - Google Patents
Lubricating oil composition for automatic transmission Download PDFInfo
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- CN105073963A CN105073963A CN201480019490.8A CN201480019490A CN105073963A CN 105073963 A CN105073963 A CN 105073963A CN 201480019490 A CN201480019490 A CN 201480019490A CN 105073963 A CN105073963 A CN 105073963A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/12—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic compound containing atoms of elements not provided for in groups C10M141/02 - C10M141/10
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/76—Reduction of noise, shudder, or vibrations
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/045—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for continuous variable transmission [CVT]
Abstract
Provided is a lubricating oil composition for an automatic transmission that is suitable for use as an automatic transmission oil with increased performance in the prevention of wear and baking even when viscosity is reduced, particularly as a metal-belt continuously variable transmission oil. The lubricating oil composition for an automatic transmission is characterized in that the base oil of the lubricating oil comprises, with the entire mass of the lubricating oil composition as a reference, (A) 300-1000 ppm by mass in boron atom conversion of a boron-containing ashless dispersant, (B) 100-1200 ppm by mass in metal atom conversion of a metal-based cleanser with a total base number of at least 200 mg KOH/g, and (C) 0.01-5% by mass of a friction adjuster, and in that the ratio (Bo/M) of the content of constituent (A) in boron atom conversion (Bo: ppm by mass) over the content of constituent (B) in metal atom conversion (M: ppm by mass) is 0.5-4.
Description
Technical field
The present invention relates to lubricating oil composition for automatic transmission, particularly metal belt type stepless variable machine lubricating oil composition.
Background technology
Nearest automatic speed variator or stepless speed changer have required light weight miniaturization, and the power stage sought with the engine combinationally used with variable-speed motor increases, improvement driving force transmission capacity.The object of light weight miniaturization is to improve the fuel efficiency of the vehicle being provided with variable-speed motor.
Especially, when metal belt type stepless variable machine, if the frictional coefficient between band and pulley (pulley) increases, then can miniaturization, therefore preferred lubricating oil used herein is the oil of the high intermetallic frictional coefficient characteristic of maintenance.
In addition, lubricating oil also requires to reduce fuel consumption.Particularly, lubricating oil by reducing its viscosity, when stirring the idling of resistance or clutch pack (clutchpack) or fluid film lubrication time viscous resistance cause power waste to reduce, be conducive to improvement fuel economy.
Proposed to make friction regulator, metal system sanitising agent, ashless dispersant and abrasion performance agent interpolation optimization to make the rubbing characteristics of lock-up clutch (lock-upclutch) keep under good conditions and to provide the speed change machine oil (see following patent documentation 1 to 7) of lasting initial stage stabilization (initialanti-shudderproperties).
Such as, patent documentation 1 discloses a kind of variable-speed motor lubricating oil composition of the specific calcium salicylate, SP system extreme pressure agent, specific succinimide and the boracic ashless dispersant that comprise respective specified quantitative, and described composition exhibiting goes out excellent performance as excellent stabilization and lasting fatigue lifetime.Patent documentation 2 disclose a kind of comprise there is particular configuration metal salts of organic acids, abrasion performance agent and boracic succinimide are as essential component thus have the electrodeless variable-speed motor lubricating oil composition of higher intermetallic frictional coefficient and the stabilization for slide control mechanism.Patent documentation 3 discloses and a kind ofly comprises calcium salicylate, phosphorous abrasion performance agent, friction regulator and Dispersant viscosity index improver thus have the lasting stepless speed changer lubricating oil composition of higher intermetallic frictional coefficient and the stabilization for slide control mechanism.Patent documentation 4 discloses one and comprises dithiocar-bamate (ester) compound, has the lipid acid of the branching of 8-30 carbon atom and the condenses of amine and amine system antioxidant thus have the lubricating oil composition of excellent and lasting stabilization.Patent documentation 5 discloses one and comprises calcium sulphonate, phosphorous acid esters, and comprise further sarcosine derivative or carboxylic acid and amine reaction product thus have for sliding latch mechanism lasting stabilization and prevent Belt-type Adjustable-speed machine from abrading the automatic transmission engine oil base oil of enduring quality of noise.Patent documentation 6 discloses a kind of automatic transmission engine oil base oil comprising specific alkaline earth metal sulfonate with specified quantitative, and said composition is excellent and have lasting stabilization as the automatic speed variator oil oxidation stability for having slide control mechanism.Patent documentation 7 discloses a kind of succinimide comprising calcium salicylate, magnesium salicylate, the friction regulator of specified quantitative and the boric acid modified of specified quantitative, has the automatic transmission machine oil of excellent stabilization and specified torque capacity (torquecapacity).
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Application Laid-Open 2003-113391 publication
Patent documentation 2: Japanese Patent Application Laid-Open 2001-323292 publication
Patent documentation 3: Japanese Patent Application Laid-Open 2000-355695 publication
Patent documentation 4: Japanese Patent Application Laid-Open puts down 11-50077 publication
Patent documentation 5: Japanese Patent Application Laid-Open puts down 10-306292 publication
Patent documentation 6: Japanese Patent Application Laid-Open puts down 10-25487 publication
Patent documentation 7: Japanese Patent Application Laid-Open 2000-63869 publication
Summary of the invention
the problem that invention will solve
But, when promoting viscosity to reduce, wear away and occlusion thinning therefore may the generation of the oil film in lubrication portion.Therefore, the object of this invention is to provide a kind of lubricating oil composition, this lubricating oil composition keep higher intermetallic frictional coefficient thus maintenance torque capacity while, even if reduce viscosity also improve wear resistant and resistance to occlusion, this lubricating oil composition is especially suitable for use as metal belt type stepless variable machine oil.
for the scheme of dealing with problems
As the result studied widely that the present inventor carries out for achieving the above object, the present invention is based on following discovery and complete: above-mentioned purpose can be realized with specified quantitative and the specific lubricating oil composition than comprising specific boracic ashless dispersant and special metal system sanitising agent by respective.
Namely, the invention provides lubricating oil composition for automatic transmission, wherein in base oil, total mass based on composition comprises: (A) is scaled the boracic ashless dispersant of the amount of 300 to 1000 quality ppm by boron atom, (B) total basicnumber being scaled the amount of 100 to 1200 quality ppm by atoms metal is the metal system sanitising agent of more than 200mgKOH/g, (C) friction regulator of the amount of 0.01 to 5 quality %, the ratio (Bo/M) of the content (M: quality ppm) that the content (Bo: quality ppm) that component (A) converts by boron atom and component (B) convert by atoms metal is 0.5 to 4.
the effect of invention
Lubricating oil composition of the present invention can keep high intermetallic frictional coefficient and resistance to occlusion is excellent, is particularly suitable for belt electrodeless variable-speed motor.
Lubricating oil composition of the present invention also has the excellent performance of variable-speed motor oil require in addition to those described above, is therefore suitable for automatic or manual variable-speed motor and the differential gearing of automobile, building machinery and agricultural machine.In addition, described lubricating oil composition also can be used as industrial gear oil; For automobile as two wheeler and brougham use, the lubricating oil of generating use and marine gasoline engine, diesel motor or gas electricity generator; Turbine oil (turbineoil) and compressor oil.
Embodiment
Below in detail the present invention will be described.
Lubricating oil composition of the present invention comprise lubricant base and separately using at least boracic ashless dispersant of specified quantitative as component (A), metal system sanitising agent is as component (B) and friction regulator as component (C).
Without particular limitation of the lubricant base of lubricating oil composition of the present invention (hereinafter referred to as " lubricating oil composition "), this lubricant base can be and is generally used for mineral oil system base oil in lubricating oil or synthesis is base oil.
The specific examples of mineral oil system base oil comprise lubricating oil distillate that air distillation Residual oil (bottomoil) underpressure distillation that obtained by crude oil atmospheric distillation produces carry out being selected from solvent deasphalting, solvent extraction, hydrocracking, hydroisomerization, any one of solvent dewaxing and hydrofining (hydrorefining) or multiple process produce those; The mineral oil of wax isomerization; With produced by isomerization GTL wax (gas become liquid wax (GastoLiquidWax)) those.
The mineral oil system base oil of hydrocracking is preferably for mineral oil system of the present invention base oil.Alternatively, the isomerized isoparaffin base oil of this mineral oil system base oil preferred wax, it is by producing the stock oil isomerization of wax as petroleum wax or Fischer-Tropsch synthesis oil comprising more than 50 quality %.Although these base oils can be used alone or in combination, be preferably used alone the base oil of wax isomerization.
Synthesis is that the specific examples of base oil comprises polybutene and plus hydrogenated compound (hydrogenatedcompound) thereof; Poly-alpha-olefin is as 1-octene oligomers, 1-decene oligopolymer and 1-dodecylene oligopolymer, or its plus hydrogenated compound; Diester is as two (tridecyl) glutarate (ditridecylglutarate), di-2-ethylhexyl adipate, diisodecyl adipate, two (tridecyl) adipic acid ester (ditridecyladipate) and Diisooctyl Sebacate; Polyol ester is as DOPCP, trimethylolpropane caprylate (trimethylolpropanecaprylate), TriMethylolPropane(TMP) pelargonate (trimethylolpropanepelargonate), tetramethylolmethane 2-ethylhexanoate (pentaerythritol2-ethylhexanoate) and tetramethylolmethane pelargonate (pentaerythritolpelargonate); Aromatics synthetic oil is as alkylnaphthalene, alkylbenzene and aromatic ester; And above-mentioned mixture.
Without particular limitation of 100 DEG C of kinetic viscosities for lubricant base of the present invention, but, be preferably 2mm
2/ more than s, is more preferably 2.5mm
2/ more than s, is particularly preferably 3mm
2/ more than s and preferred 8mm
2/ below s, more preferably 6mm
2/ below s, more preferably 4.5mm
2/ below s, particularly preferably 4mm
2/ below s.Preferably 100 DEG C of kinetic viscosities are not greater than 8mm
2the base oil of/s, this is because the low-temperature viscosity profiles of gained lubricating oil composition is poor, simultaneously also not preferably 100 DEG C of kinetic viscosities lower than 2mm
2the base oil of/s, this is because the vaporization losses that gained lubricating oil composition forms insufficient oil film and poor lubricity and lubricant base due to it in lubrication site is large.
The 100 DEG C of kinetic viscosities measured according to ASTMD-445 are represented for DEG C kinetic viscosity of 100 herein.
Without particular limitation of 40 DEG C of kinetic viscosities for lubricant base of the present invention, but, be preferably 8.0mm
2/ more than s, is more preferably 8.5mm
2/ more than s, is particularly preferably 9.0mm
2/ more than s and preferred 40mm
2/ below s, more preferably 30mm
2/ below s, more preferably 25mm
2/ below s, particularly preferably 20mm
2/ below s.Preferably 40 DEG C of kinetic viscosities are not greater than 40mm
2the base oil of/s, this is because the low-temperature viscosity profiles of gained lubricating oil composition is poor, simultaneously also not preferably 40 DEG C of kinetic viscosities lower than 8.0mm
2the base oil of/s, this is because the vaporization losses that gained lubricating oil composition forms insufficient oil film and poor lubricity and lubricant base due to it in lubrication site is large.
The 40 DEG C of kinetic viscosities measured according to ASTMD-445 are represented for DEG C kinetic viscosity of 40 herein.
Without particular limitation of the viscosity index of lubricant base, but be preferably more than 100, be more preferably more than 120, be more preferably more than 130, be particularly preferably more than 140 and be generally less than 200, be preferably less than 160.The lubricant base using viscosity index to be greater than 100 can produce the composition of the excellent viscosity characteristics demonstrated from low temperature to high temperature.Meanwhile, if viscosity index is too high, resulting composition will be tending towards at low temperatures that viscosity is high.
Any one or the mixture of two or more types selected thus that above-mentioned mineral oil system base oil and synthesis are base oil is can be for lubricant base of the present invention.Such as, base oil can be one or more mineral oil system base oil, and one or more synthesis is base oil, or one or more mineral oil system base oil and one or more synthesis are the mixing oil of base oil.
In order to improve low-temperature viscosity profiles and the viscosity index of lubricating oil composition, lubricant base preferably has 8 to 14mm
2the low temperature base oil of 40 DEG C of kinetic viscosities of/s, or comprise being selected from there is 8 to 14mm
2the low temperature base oil of 40 DEG C of kinetic viscosities of/s and the mixed base oil of the combination of the base oil of the two or more types of relative high viscosity base oil.When use this mixed base oil time, preferably with the blended 40 DEG C of kinetic viscosities of more than at least 20 quality %, the preferably amount of more than 40 quality % for 8 to 14mm
2the base oil of/s.
40 DEG C of kinetic viscosities of low temperature base oil are 8 to 14mm
2/ s, is preferably 9 to 12mm
2/ s, 100 DEG C of kinetic viscosities are 2mm
2/ more than s and lower than 3.5mm
2/ s.
But 40 DEG C of kinetic viscosities of relative high viscosity base oil are 15 to 25mm
2/ s, 100 DEG C of kinetic viscosities are 3.5mm
2/ more than s and 4.5mm
2/ below s.
Above-mentioned low viscosity base oil can improve viscosity index with the use of the mixture of relative high viscosity base oil.
The viscosity index of above-mentioned low viscosity base oil is preferably more than 110, be more preferably more than 120, be more preferably more than 125, and the viscosity index of relative high viscosity base oil is preferably more than 125, and more preferably more than 130, more preferably more than 135.
Without particular limitation of the sulphur content for lubricant base of the present invention, but, be preferably below 0.1 quality %, be more preferably below 0.01 quality %, be more preferably below 0.005 quality %, be particularly preferably below 0.001 quality %, be most preferably essentially 0.The composition with excellent oxidative stability produces by the sulphur content reducing lubricant base.
Lubricating oil composition of the present invention comprises boracic ashless dispersant as component (A).
The example of boracic ashless dispersant comprises the boronation ashless dispersant by ashless dispersant boronation being produced.
The example of ashless dispersant comprises following nitrogen compound, and it can be used alone or combinationally uses:
(A1) there is the succinimide of at least one straight-chain with 40-400 carbon atom or branch-like alkyl or alkenyl, or derivatives thereof in per molecule;
(A2) there is the benzylamine of at least one straight-chain with 40-400 carbon atom or branch-like alkyl or alkenyl, or derivatives thereof in per molecule; With
(A3) there is the polyamines of at least one straight-chain with 40-400 carbon atom or branching shape alkyl or alkenyl, or derivatives thereof in per molecule.
The preferred 40-400 of carbon number of the alkyl or alkenyl of ashless dispersant, more preferably 60-350.If the carbon number of alkyl or alkenyl is less than 40, the solvability of compound in lubricant base will be tending towards deterioration.But if the carbon number of alkyl or alkenyl is more than 400, gained lubricating oil composition is by deteriorated low-temperature fluidity.
Alkyl or alkenyl can be straight-chain or branching shape, but the derivative branched-alkyl of the co-oligomer of preferred alkenes as the oligopolymer of propylene, 1-butylene or iso-butylene or ethene and propylene or thiazolinyl.
(A1) specific examples of succinimide comprises the compound represented by formula (1) and (2):
In formula (1), R
1for having the alkyl or alkenyl of 40-400, preferably 60-350 carbon atom, and a is the integer of 1-5, preferably 2-4.
In formula (2), R
2and R
3independently of one another for having the alkyl or alkenyl of 40-400, preferably 60-350 carbon atom, and b is the integer of 0-4, preferably 1-3.
Succinimide comprises such as formula the monotype succinimide (mono-typesuccinimide) shown in (1), wherein succinyl oxide is added into one end of polyamines; With such as formula the dimorphism succinimide shown in (2), wherein succinyl oxide is added into the two ends of polyamines.Lubricating oil composition can comprise any one succinimide or its mixture.
The production method of succinimide is not particularly limited.Such as, can use wherein by the method there is the alkyl or alkenyl succsinic acid that reacts at the temperature of 100 DEG C to 200 DEG C containing compound and the maleic anhydride of the alkyl or alkenyl of 40-400 carbon atom and produce and polyamines reacting.The example of polyamines comprises diethylenetriamine, Triethylenetetramine (TETA), tetren and penten.
(A2) specific examples of benzylamine comprises the compound represented by formula (3):
In formula (3), R
1for having the alkyl or alkenyl of 40-400, preferably 60-350 carbon atom, and r is the integer of 1-5, preferably 2-4.
The production method of benzylamine is not particularly limited.Alkylphenol and formaldehyde and polyamines such as diethylenetriamine, Triethylenetetramine (TETA), tetren or penten, are then carried out Mannich reaction to produce if propylene oligomer, polybutene or ethene-alpha-olefin copolymer and phenol reactant are to produce alkylphenol by polyolefine by them.
(A3) specific examples of polyamines comprises the compound represented by formula (4):
R
1-NH-(CH
2CH
2NH)
k-H(4)。
In formula (4), R
1for having the alkyl or alkenyl of 40-400, preferably 60-350 carbon atom, and k is the integer of 1-5, preferably 2-4.
The production method of polyamines is not particularly limited.Such as, polyamines is by reacting to produce by the polyolefine of chlorination and ammonia or polyamines such as quadrol, diethylenetriamine, Triethylenetetramine (TETA), tetren and penten as propylene oligomer, polybutene or ethene-alpha-olefin copolymer chlorination by polyolefine.
Boronation is usually by making above-mentioned nitrogenous compound and acid reaction all or part ofly remain amino and/or imino-to neutralize and carry out.
The example of the production method of boronation succinimide (boronatedsuccinimide) is at Japanese patent application laid public clear 42-8013 publication, examined patent publication 42-8014 publication, and the clear 51-52381 publication of Japanese Patent Application Laid-Open, disclosed in JP 51-130408 publication those.More specifically, boronation succinimide by by polyamines and polyalkenyl succsinic acid (acid anhydride) and boron compound as boric acid, boric acid ester or borate comprise the solvent of alcohols, organic solvent as hexane or dimethylbenzene or light lubricating oil base oil in mix, and heated mixt is produced under the proper conditions.
In the present invention, if boracic ashless dispersant comprises boron with the such amount needed for the lubricating oil composition in the present invention, it can combinationally use with non-boronation ashless dispersant the stability improving composition.
But, in order to realize the raising of object of the present invention as wear resistant and resistance to occlusion, be preferably used alone boracic ashless dispersant.
In the present invention, boracic ashless dispersant due to its as the stability of compound preferred boronation succinimide.
The molecular weight of the alkyl of boracic succinimide is preferably more than 500, is more preferably more than 700, is more preferably more than 900.Molecular weight is preferably less than 2000, is more preferably less than 1500.If molecular weight is less than 500, it is not too effective that therefore height is economized fuel consumption by the frictional coefficient of resulting composition.Meanwhile, molecular weight, more than 2000, will be difficult in fact synthesis boracic succinimide.
In the present invention, the Boron contents of boracic ashless dispersant is preferably more than 1.0 quality %, is more preferably more than 1.5 quality %.Boron contents is also preferably below 3 quality %, is more preferably below 2.5 quality %, particularly preferably below 2.4 quality %.
If Boron contents is less than 1.0 quality %, resulting composition possibly cannot obtain the wear resistant and resistance to occlusion that meet the object of the invention.If Boron contents is more than 3 quality %, then may worries to generate precipitation, and the poor stability of resulting composition may be caused.
In the present invention, the nitrogen content of boracic ashless dispersant is preferably more than 1.0 quality %, is more preferably more than 1.5 quality %.Nitrogen content is preferably below 3 quality %, is more preferably below 2.5 quality %, particularly preferably below 2.0 quality %.
If nitrogen content is less than 1.0 quality %, resulting composition possibly cannot realize the boronation as the object of the invention.If nitrogen content is more than 3 quality %, resulting composition will cause the deterioration of wear resistant on the contrary.
In the present invention, component (A) is necessary for more than 300 quality ppm relative to the content of lubricating oil composition total mass by the conversion of boron atom, is preferably more than 400 quality ppm, more preferably more than 600 quality ppm.The upper limit is below 1000 quality ppm, is preferably below 900 quality ppm, is more preferably below 850 quality ppm, most preferably is below 800 quality ppm.Content as fruit component (A) is less than 300 quality ppm, and the extreme pressure property of resulting composition will be poor.But, this content more than 1000 quality ppm, resulting composition deleterious effect will be played to friction materials and the time length of stabilization by short.May worry to generate precipitation, and the poor stability of resulting composition may be caused.
It is that the metal system sanitising agent of more than 200mgKOH/g is as component (B) that lubricating oil composition of the present invention comprises total basicnumber.
The base number measured by perchloric acid potentiometric titration according to JISK2501 " petroleum product and lubricating oil neutralization value test method(s) " is represented for term " total basicnumber " herein.
The specific examples of metal system sanitising agent comprises alkaline earth metal sulfonate, alkaline earth phenate and alkaline earth metal salicylate.Any one or various metals system sanitising agent that are selected from these compounds can be used.Especially, for the reason preferred calcium salt of rubbing characteristics.
The specific examples of alkaline earth metal sulfonate comprises the alkaline earth salt of alkyl aromatic sulfonic acid, and this alkyl aromatic sulfonic acid is by being 100 to 1,500 by molecular weight, being preferably the Alkylaromatics sulfonation of 200 to 700 and producing.Especially, preferably magnesium salts and/or calcium salt is used.For the reason particularly preferably calcium salt of rubbing characteristics.The specific examples of alkyl aromatic sulfonic acid comprises mahogany acid and synthesis sulfonic acid.
The example of alkaline earth phenate comprises the basic metal/alkaline earth salt of the Mannich reaction products of alkylphenol having at least one and have 4-30, the preferably straight-chain of 6-18 carbon atom or the alkylphenol of branch-like alkyl, the alkylphenol sulfide produced by alkylphenol and reaction of Salmon-Saxl or produced by alkylphenol and formaldehyde reaction.Especially, preferred magnesium salts and/or calcium salt.
The specific examples of alkaline earth metal salicylate comprises and has basic metal/alkaline earth salt that at least one has 4-30, the preferably straight-chain of 6-18 carbon atom or the alkyl salicylate of branch-like alkyl.Especially, preferred magnesium salts and/or calcium salt.
If total basicnumber is the alkaline earth metal sulfonate of more than 200mgKOH/g, alkaline earth phenate and alkaline earth metal salicylate comprise by the Mannich reaction products of alkyl aromatic sulfonic acid, alkylphenol, alkylphenol sulfide, alkylphenol or alkyl salicylate directly and metal base such as alkaline earth metal oxide or oxyhydroxide react, or by the Mannich reaction products of alkyl aromatic sulfonic acid, alkylphenol, alkylphenol sulfide, alkylphenol or alkyl salicylate are converted into an alkali metal salt as sodium salt and sylvite, the neutral salt (normal salt) then produced with alkaline earth salt displacement; The subsalt produced by heating these neutral salt (normal salt) and excessive alkaline earth salt or alkaline earth metal alkali (alkaline earth metal hydroxides or oxide compound) in presence of water; Subsalt (super subsalt) is crossed by what these neutral salt and alkali were reacted as basic metal or alkaline earth metal hydroxides and produced with under the existence of carbonic anhydride.
These reactions are carried out usually in solvent (, as hexane, aromatic hydrocarbon solvent is as dimethylbenzene, and light lubricating oil base oil for aliphatic hydrocarbon solvent).Although metal system sanitising agent is generally obtained commercially with the state of diluting with light lubricating oil base oil, its metal content is preferably used to be 1.0 to 20 quality %, the metal system sanitising agent being preferably 2.0 to 16 quality %.
Subsalt was preferably for metal system of the present invention sanitising agent.
In the present invention, component (B) is necessary for more than 100 quality ppm relative to the content of the total mass of lubricating oil composition by atoms metal conversion, is preferably more than 200 quality ppm, is more preferably more than 300 quality ppm, more preferably more than 350 quality ppm.The content of component (B) is also preferably below 1200 quality ppm, is more preferably below 1000 quality ppm, is more preferably below 800 quality ppm, be particularly preferably below 600 quality ppm, most preferably be below 450 quality ppm.If this content is less than 100 quality ppm, it is insufficient that resulting composition will be tending towards rubbing characteristics raising effect.Meanwhile, if this content is more than 1200 quality ppm, resulting composition is deteriorated rubbing characteristics by the deleterious effects due to the friction materials to humid clutch.
Calcium sulphonate is preferably for metal system of the present invention sanitising agent.Preferably be used alone calcium sulphonate.This is because the rubbing characteristics of calcium sulphonate meets the rubbing characteristics that the present invention seeks most.
In lubricating oil composition of the present invention, importantly the content of component (A) and the content of component (B) are in specified range.Namely, relative to the total mass of lubricating oil composition, the ratio (Bo/M) of the content (M: quality ppm) that the content (Bo: quality ppm) that component (A) converts by boron atom and component (B) convert by atoms metal is necessary for 0.5 to 4.Bo/M lower value is more than 0.5, is preferably more than 0.6, is more preferably more than 0.7, is particularly preferably more than 1.0.Higher limit less than 4, is preferably less than 3.5, is preferably less than 3, is more preferably less than 2.5, is particularly preferably less than 2.If Bo/M is less than 0.5, the intermetallic frictional coefficient raising effect of resulting composition is insufficient.But Bo/M is more than 4, and the intermetallic frictional coefficient raising effect of resulting composition is also insufficient.
Lubricating oil composition of the present invention also comprises friction regulator as component (C).
Friction regulator can be any compound of the friction regulator being usually used as lubricating oil field.Specific examples comprise respectively have there is in the molecule thereof and have the alkyl or alkenyl of 6-30 carbon atom, the straight chained alkyl particularly with 6-30 carbon atom or thiazolinyl amine compound, imide compound, fatty acid ester, fatty acid amide and fatty acid metal salt,
The example of amine compound comprises the straight-chain or branching shape, preferably straight-chain aliphatic monoamine and aliphatic polyamines respectively with 6-30 carbon atom, and the alkylene oxide adduct of these aliphatic amines.
The example of imide compound comprises the succinimide of straight-chain or the branching shape alkyl or alkenyl had containing 6-30 carbon atom, and/or the modified product of itself and carboxylic acid, boric acid, phosphoric acid or sulfuric acid.
The example of fatty acid ester comprises the ester of straight-chain or the branching shape, preferably straight-chain lipid acid and aliphatic monohydric alcohol or aliphatic polyol with 7-30 carbon atom.The example of fatty acid amide comprises the acid amides of straight-chain or the branching shape, preferably straight-chain lipid acid and aliphatic monoamine or aliphatic polyamines with 7-31 carbon atom.
The example of fatty acid metal salt comprises alkaline earth salt (magnesium salts or calcium salt) or the zinc salt of straight-chain or the branching shape, preferably straight-chain lipid acid with 7-31 carbon atom.
In the present invention, for the object improving fatigue lifetime, lubricating oil composition preferably comprise be selected from amine system friction regulator, ester system friction regulator, acid amides system friction regulator, fatty acid series friction regulator one or both, particularly preferably comprise one or both that be selected from amine system friction regulator, fatty acid series friction regulator and acid amides system friction regulator.When driving transmission mechanism lubricating composition of the present invention is especially for automatic speed variator or stepless speed changer, for the weather resistance significantly improving stabilization, preferably comprise imide series friction regulator.
Friction regulator is more than 0.01 quality % relative to the content of composition total mass, is preferably more than 0.05 quality %, is more preferably more than 0.1 quality %, most preferably is more than 0.3 quality %.This content is also below 5 quality %, is preferably below 3 quality %, is more preferably 1 quality %, is more preferably below 0.5 quality %.If this content is less than 0.01 quality %, guarantee necessary stabilization by being difficult to.Meanwhile, if this content is more than 5 quality %, guarantee necessary intermetallic frictional coefficient by being difficult to.
Lubricating oil composition of the present invention preferably comprises phosphorus system additive (phosphorus-containingadditive) further as component (D).The interpolation of component (D) makes to improve wear resistant and resistance to occlusion further, improves the rubbing characteristics of humid clutch in addition.
The example of component (D) phosphorus system additive comprises the salt of alkyl zinc dithiophosphate, phosphoric acid, phosphorous acid, phosphate monoester class, phosphodiester class, phosphotriester class, monophosphite class, diphosphite class, tris phosphite class, phosphoric acid (phosphorous acid) and their mixture.
In these components (D), those except phosphoric acid and phosphorous acid are comprise the compound having and be generally 2-30, be preferably the alkyl of 3-20 carbon atom.The aryl that the cycloalkyl that the specific examples with the alkyl of 2-30 carbon atom comprises alkyl, cycloalkyl, alkyl replace, thiazolinyl, aryl, alkyl replace and the alkyl that aryl replaces.These alkyl can be straight-chain or branching shape.
The specific examples of the salt of phosphoric acid (phosphorous acid) comprises and reacts by making only to comprise in phosphate monoester, phosphodiester, monophosphite or diphosphite and molecule the nitrogenous compound with the alkyl of 1-8 carbon atom or the alkyl of hydroxyl such as ammonia or amine compound those that produce to neutralize all or part of residue acidic hydrogen.
Can any one or multiple of blended these components (D).
In the present invention, preferably use alkyl or alkenyl phosphorous acid ester.Particularly preferably use the carbon atom with less than 8, the alkyl phosphite being preferably the carbon atom of less than 5.
In the present invention, preferably combination uses phosphorous acid and alkyl or alkenyl phosphorous acid ester.
When combinationally using phosphorous acid and alkyl or alkenyl phosphorous acid ester, phosphorous acid: the phosphorus amount of alkyl or alkenyl phosphorous acid ester, than being preferably 1:0.2 to 1:3.5, being more preferably 1:0.5 to 1:3, being more preferably 1:1 to 1:2.If the ratio of phosphorous acid is less than 0.2 or more than 10, by the balance of deteriorated intermetallic frictional coefficient and stabilization.
When lubricating oil composition of the present invention is blended have component (D) time, its content is not particularly limited, but, obtain the excellent oxidative stability of lubricating oil composition for the frictional coefficient improving humid clutch, press phosphorus atom relative to the total mass of lubricating oil composition to convert, be preferably more than 50 quality ppm, be more preferably more than 100 quality ppm, be more preferably more than 200 quality ppm, most preferably be more than 400 quality ppm, and be preferably below 2000 quality ppm, be more preferably below 1500 quality ppm, be more preferably below 1000 quality ppm, be particularly preferably below 800 quality ppm, most preferably be below 600 quality ppm.
If the amount converted by phosphorus atom is less than 50 quality ppm, the wear resistant of resulting composition or intermetallic frictional coefficient are by insufficient, and stabilization is also insufficient.If this amount is more than 2000 quality ppm, component (D) will play the deleterious effects to oxidative stability or sealing material.
Lubricating oil composition of the present invention is capable of being combined comprises component (D) phosphorus system's additive and the extreme pressure agent except component (D).This type of extreme pressure agent used capable of being combined can be any compound being typically used as lubricating oil extreme pressure agent.The example of extreme pressure agent comprises sulfocompound as disulfides, olefine sulfide class and vulcanized oil lipid.Be selected from any one of these compounds or multiple compounds can any amount blended.Extreme pressure agent is generally 0.01 to 5.0 quality % relative to the amount of the total mass of lubricating oil composition.
Lubricating oil composition of the present invention preferably comprises viscosity index improver as component (E).The specific examples of viscosity index improver comprises non-dispersive type viscosity index improver as being selected from polymkeric substance or the multipolymer of one or more monomers of various methacrylic ester or its plus hydrogenated compound, and Dispersant viscosity index improver is as comprised the multipolymer of the various methacrylic esters of nitrogen compound further.
The specific examples of other viscosity index improver comprises non-dispersive type or decentralized ethene-alpha-olefin copolymer (alpha-olefin can be propylene, 1-butylene or 1-amylene) or its plus hydrogenated compound; Polyisobutene or its plus hydrogenated compound; The plus hydrogenated compound of styrenic-diene multipolymer; Phenylethylene-maleic anhydride ester copolymer; And alkyl styrenes.
Consider that shear stability selects the molecular weight of viscosity index improver.The number-average molecular weight of non-dispersive type or decentralized polymethacrylate is 5,000 to 150,000, is preferably 5,000 to 35,000.The number-average molecular weight of polyisobutene or its plus hydrogenated compound is 800 to 5,000, is preferably 1,000 to 4,000.The number-average molecular weight of ethene-alpha-olefin copolymer or its plus hydrogenated compound is 800 to 150,000, is preferably 3,000 to 12,000.In these viscosity index improvers, the use of ethene-alpha-olefin copolymer or its plus hydrogenated compound makes to produce shear stability lubricating oil composition excellent especially.Be selected from these viscosity index improvers one or more compounds can any amount blended enter in lubricating oil composition of the present invention.Viscosity index improver is generally 0.1 to 40.0 quality % relative to the content of total composition.
Be preferably polymkeric substance or the multipolymer of methacrylic acid for viscosity index improver of the present invention, it is polymethacrylate.This is because polymethacrylate has improve effect as the raising low-temperature viscosity profiles of viscosity index improver and viscosity index.
The weight-average molecular weight of viscosity index improver is preferably 5,000 to 100, and 000, be more preferably 10, more than 000, and be more preferably 70, less than 000.Preferably combination uses weight-average molecular weight be 5, more than 000 and be less than 30, and the viscosity index improver of 000 and weight-average molecular weight are 30, more than 000 and the viscosity index improver of 70, less than 000.Weight-average molecular weight is 30, more than 000 and the viscosity index improver preferable weight-average molecular weight of 70, less than 000 is 60, less than 000.
5 are had separately when combinationally using, more than 000 and be less than 30, the weight-average molecular weight of 000 and 30, more than 000 and 70, during those of the weight-average molecular weight of less than 000, molecular weight as additive is 5, more than 000 and is less than 30, the viscosity index improver of 000: weight-average molecular weight is 30, more than 000 and be less than 70, the mass ratio of the viscosity index improver of 000 is preferably 1:0.02 to 1:1, is more preferably 1:0.05 to 1:0.8, is more preferably 1:0.1 to 1:0.5.
Combinationally use the reason of the polymethacrylate of two types for equilibrium shear stability, low-temperature viscosity profiles and viscosity index improve effect the most well in the present invention.
For the further object improving the performance of composition, if desired, lubricating oil composition of the present invention can one or more various additives except above-mentioned additive blended as antioxidant, corrosion inhibitor, rust-preventive agent, demulsifying compound, metal passivator, pour point reducer, rubber swelling agent (rubberswellingagent), defoamer and tinting material.
Antioxidant can be any antioxidant being generally used for lubricating oil, as phenol based compound or amine compound.The specific examples of antioxidant comprises induced by alkyl hydroxybenzene as 2-6-bis--tert-butyl-4-methyl-Phenol; Bisphenols is as methylene radical-4,4-bis-phenol (BHT); Naphthylamines class is as phenyl-a-naphthylamine; Dialkyl group diphenylamine (dialkyldiphenylamine) class; Zinc dialkyl dithiophosphate class is as two-2-ethylhexyl zinc dithiophosphates; (3,5-, bis--tertiary butyl-4-hydroxy benzene) lipid acid (as propionic acid) and monohydroxy-alcohol or polyvalent alcohol are as the ester of methyl alcohol, Stearyl alcohol, 1,6-hexylene glycol, neopentyl glycol, thio-diethylene glycol, triethylene glycol and tetramethylolmethane.Any amount can use any one or multiple being selected from these antioxidants.In the present invention, preferably combination uses amine compound and phenol based compound.
The example of corrosion inhibitor comprises benzotriazole system, tolyl-triazole (tolyltriazole) is, thiadiazoles system and imidazole compound.
The example of rust-preventive agent comprises sulfonated petro-leum, alkylbenzene sulfonate, dinonylnaphthalene sulfonic acid salt, alkenyl succinate acid esters and polyol ester.
The example of demulsifying compound comprises polyalkylene glycol system nonionogenic tenside as Voranol EP 2001, polyoxyethylene alkyl phenyl ether and polyxyethylated naphthyl ether.
The example of metal passivator comprises tetrahydroglyoxaline, pyrimidine derivatives, alkyl thiadiazoles, mercaptobenzothiazole, benzotriazole and derivative, 1 thereof, 3,4-thiadiazoles polysulfide, 1,3,4-thiadiazolyl group-2,5-two dialkyl dithio amino formate, 2-(alkyl dithio) benzoglyoxaline and β-(adjacent carboxyl benzylthio) propionitrile.
Pour point reducer can be selected from the pour point reducer of any routine according to lubricant base.Pour point reducer preferable weight-average molecular weight is 50,000 to 300,000, is preferably 60,000 to 300,000, is particularly preferably 100,000 to 250, poly-(methyl) acrylic ester pour point reducer of 000.
Defoamer can be the general any compound being used as lubricating oil defoamer.The example of this compounds comprises silicone as dimethyl silscone and fluorosilicone.Any amount can comprise any one or multiple compounds that are selected from these compounds.
Tinting material can be any compound generally used, and can any amount blended.Amount is generally 0.001 to 1.0 quality % relative to the total mass of composition.
When these additive-package are contained in lubricating oil composition of the present invention, antioxidant, corrosion inhibitor, rust-preventive agent and demulsifying compound is comprised separately with the amount of 0.005 to 5 quality %, metal passivator is comprised with the amount of 0.005 to 1 quality %, pour point reducer is comprised with the amount of 0.05 to 1 quality %, defoamer is comprised with the amount of 0.0005 to 1 quality %, and contain toner with the amount of 0.001 to 1 quality %, all relative to the total mass of composition.
100 DEG C of kinetic viscosities of lubricating oil composition of the present invention are preferably 4mm
2/ more than s, is more preferably 4.5mm
2/ more than s, is more preferably 5mm
2/ more than s, is particularly preferably 5.5mm
2/ more than s, most preferably is 6mm
2/ more than s, and be preferably 9mm
2/ below s, is more preferably 8mm
2/ below s, is more preferably 7.5mm
2/ below s, is particularly preferably 7mm
2/ below s, most preferably is 6.5mm
2/ below s.
If kinetic viscosity is lower than 4mm
2/ s, resulting composition cannot form the oil film of adequate thickness, and therefore wear resistant is insufficient.If kinetic viscosity is more than 9mm
2/ s, resulting composition not only will cannot provide and economize fuel consumption effect fully, and cause the startability (startability) during low temperature insufficient.
40 DEG C of kinetic viscosities of lubricating oil composition of the present invention are preferably 10mm
2/ more than s, is more preferably 12mm
2/ more than s, is more preferably 15mm
2/ more than s, and be preferably 30mm
2/ below s, is more preferably 25mm
2/ below s, is more preferably 20mm
2/ below s.
If kinetic viscosity is lower than 10mm
2/ s, resulting composition cannot form the oil film of adequate thickness, and therefore wear resistant is insufficient.If kinetic viscosity is more than 30mm
2/ s, the fuel savings significance difference of resulting composition.
-40 DEG C of BF viscosity of lubricating oil composition of the present invention are preferably 20, below 000mPas, are more preferably 15, below 000mPas, are more preferably 10, below 000mPas, be particularly preferably 8, below 000mPas, most preferably be 7, below 000mPas.If BF viscosity is more than 20,000mPas, when will be tending towards causing low temperature, startability is insufficient.
The viscosity index of lubricating oil composition of the present invention is preferably more than 160, is more preferably more than 180, is more preferably more than 200, most preferably is more than 210, and is preferably less than 300, is more preferably less than 250, is more preferably less than 230.If viscosity index is less than 160, it is insufficient that resulting composition will be tending towards fuel savings.The composition that viscosity index is greater than 300 comprises too many poly-(methyl) acrylic ester viscosity index improver and will to be tending towards shear stability insufficient.
Lubricating oil composition for automatic transmission of the present invention is suitable for the stepless speed changer with metal strip.Especially, lubricating oil composition is suitable for the stepless speed changer with chain-type metal strip.
Embodiment
Hereinafter, describe the present invention in more detail by following examples and comparative example, described embodiment and comparative example should not be construed as and limit the scope of the invention.
(embodiment 1 to 18 and comparative example 1 to 7)
Prepare the lubricating oil composition of embodiment 1 to 18 as shown in table 1 and comparative example 1 to 7, and carry out following test, evaluation result is as shown in table 1.In table 1, the ratio of base oil is based on the total mass of base oil, and the amount of each additive is based on the total mass of composition.
(1) initial stage non-occlusive load (lastnon-seizureload, LNSL) is evaluated according to ASTMD2783 by high speed Four ball test (Four-BallExtremePressureTestMethod)
(2) trace footpath (wearscardiameter) is worn away according to ASTMD4172 by the evaluation of high speed Four ball test
(3) Occlusal load is evaluated according to ASTMD3233 by method Simon Rex lock seam test (FalexSeizuretest)
(4) according to JASO method (high-load method) M358:2005 by LFW-1 test evaluation intermetallic frictional coefficient
(5) vibration durability test is evaluated according to JASO method M349:2010 by LVFA endurance test
[table 1]
Learn by result as shown in table 1 is clear, the intermetallic frictional coefficient that the composition that boron/metal ratio (Bo/M) is respectively the comparative example 1 and 7 of 7.0 and 5.0 is evaluated by LFW-1 is lower than those of embodiment.
Boron/metal ratio (Bo/M) is that the intermetallic frictional coefficient that the composition of the comparative example 2 of 0.4 is evaluated by LFW-1 is lower than those of embodiment.
The intermetallic frictional coefficient that the composition of the comparative example 3 of the calcium sulphonate that uses base number to be 70mgKOH/g is evaluated by LFW-1 is lower than those of embodiment, and wear resistant and resistance to occlusion insufficient.
Use boracic ashless dispersant but its amount is the comparative example 4 and 5 of 200 quality ppm and boron amount is that the intermetallic frictional coefficient that the composition of the comparative example 6 of 1200 quality ppm is evaluated by LFW-1 is lower than those of embodiment, and wear resistant and resistance to occlusion insufficient.In addition, the intermetallic frictional coefficient that the composition of these comparative examples is evaluated by LFW-1 is low, provides deleterious effects to torque capacity.
Claims (6)
1. a lubricating oil composition for automatic transmission, wherein in lubricant base, comprises following composition relative to the total mass of described composition:
(A) the boracic ashless dispersant of the amount of 300 to 1000 quality ppm is scaled by boron atom;
(B) total basicnumber being scaled the amount of 100 to 1200 quality ppm by atoms metal is the metal system sanitising agent of more than 200mgKOH/g; With
(C) friction regulator of the amount of 0.01 to 5 quality %,
The ratio (Bo/M) of the content (M: quality ppm) converted by atoms metal of the content (Bo: quality ppm) and the component (B) that convert by boron atom of component (A) is 0.5 to 4.
2. lubricating oil composition for automatic transmission according to claim 1, wherein said lubricant base comprises the mixture of a kind of base oil or two or more base oils, and base oil described at least one is 40 DEG C of kinetic viscosities is 8 to 14mm
2the mineral oil system base oil of/s or synthesis are base oil, and the blended rate of described base oil is more than 20 quality %, and 40 of described composition DEG C of kinetic viscosities are 10 to 30mm
2/ s and viscosity index is more than 160.
3. lubricating oil composition for automatic transmission according to claim 1 and 2, comprise (D) total mass relative to described composition is scaled the amount of 50 to 2000 quality ppm phosphorus system additive by phosphorus atom further, and (E) is the viscosity index improver of the amount of 0.1 to 40 quality % relative to the total mass of described composition.
4. the lubricating oil composition for automatic transmission according to any one of claims 1 to 3, wherein said boracic ashless dispersant (A) comprises the nitrogen of more than the boron of more than 1 quality % and 3 quality %.
5. the lubricating oil composition for automatic transmission according to any one of Claims 1-4, wherein said metal system sanitising agent (B) is made up of calcium sulphonate.
6. the lubricating oil composition for automatic transmission according to any one of claim 1 to 5, wherein said composition is for having the stepless speed changer of metal strip.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2013072327A JP6016692B2 (en) | 2013-03-29 | 2013-03-29 | Lubricating oil composition for automatic transmission |
| JP2013-072327 | 2013-03-29 | ||
| PCT/JP2014/052503 WO2014156307A1 (en) | 2013-03-29 | 2014-02-04 | Lubricating oil composition for automatic transmission |
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| CN105073963A true CN105073963A (en) | 2015-11-18 |
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| US (1) | US20160075964A1 (en) |
| JP (1) | JP6016692B2 (en) |
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| CN110462013A (en) * | 2017-03-30 | 2019-11-15 | 出光兴产株式会社 | Lubricating oil composition for two-wheeled vehicle, method for improving fuel consumption of two-wheeled vehicle using same, and method for producing same |
| CN110494537A (en) * | 2017-04-13 | 2019-11-22 | Jxtg能源株式会社 | Lubricant oil composition |
| CN110699155A (en) * | 2018-07-10 | 2020-01-17 | 中国石油化工股份有限公司 | Special oil composition for low-viscosity 8AT automatic transmission |
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| EP2997119B1 (en) * | 2013-05-14 | 2021-08-04 | The Lubrizol Corporation | Lubricating composition and method of lubricating a transmission |
| EP3067408B1 (en) * | 2015-03-12 | 2017-03-29 | Afton Chemical Corporation | Lubricant composition for automatic transmissions |
| JP6500271B2 (en) * | 2015-03-30 | 2019-04-17 | 出光興産株式会社 | Lubricating oil composition |
| WO2016157955A1 (en) * | 2015-03-31 | 2016-10-06 | Ｊｘエネルギー株式会社 | Lubricant oil composition |
| JP6551727B2 (en) | 2015-03-31 | 2019-07-31 | 出光興産株式会社 | Lubricating oil composition |
| JP6533689B2 (en) * | 2015-04-22 | 2019-06-19 | 出光興産株式会社 | Automatic transmission oil |
| WO2017126706A1 (en) * | 2016-01-21 | 2017-07-27 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | Lubricating oil composition |
| JP6940274B2 (en) * | 2016-01-21 | 2021-09-22 | Ｅｍｇルブリカンツ合同会社 | Lubricating oil composition |
| JP6907461B2 (en) | 2016-02-29 | 2021-07-21 | 出光興産株式会社 | Lubricating oil composition, lubricating method, and transmission |
| JP6978153B2 (en) * | 2016-10-19 | 2021-12-08 | 出光興産株式会社 | Lubricating oil composition, lubricating method, and transmission |
| JP6962677B2 (en) * | 2016-10-27 | 2021-11-05 | Ｅｍｇルブリカンツ合同会社 | Lubricating oil composition |
| US20190367834A1 (en) * | 2017-01-19 | 2019-12-05 | Idemitsu Kosan Co., Ltd. | Lubricant composition |
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| JP2014196396A (en) | 2014-10-16 |
| JP6016692B2 (en) | 2016-10-26 |
| WO2014156307A1 (en) | 2014-10-02 |
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