CN101300330A - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
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- CN101300330A CN101300330A CNA2006800410527A CN200680041052A CN101300330A CN 101300330 A CN101300330 A CN 101300330A CN A2006800410527 A CNA2006800410527 A CN A2006800410527A CN 200680041052 A CN200680041052 A CN 200680041052A CN 101300330 A CN101300330 A CN 101300330A
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Abstract
A lubricating oil composition as a lubricating oil suitable for use as automatic shift and/or stepless speed change device oil, exhibiting excellent torque transmission power and shift transmission performance, which lubricating oil composition comprises a lubricant base oil containing, based on the whole amount of composition, (A) sulfonate cleaning agent amounting to 0.01 to 0.3 mass% in terms of metal quantity (MeA), (B) salicylate cleaning agent amounting to nil or 0.1 mass% or less in terms of metal quantity (MeB) and (C) borated succinimide ashless dispersant amounting to 0.001 to 0.1 mass% in terms of boron quantity (BoC) wherein the ratio of (MeB)/(MeA) is 0 or over 0 to 1.5, and wherein the ratio of (MeA)/(BoC) is in the range of 0.001 to 20.
Description
[technical field]
The present invention relates to lubricating oil composition, it has excellent nominal torque capacity and speed change characteristic, is suitable as automatic transmission and/or buncher liquid.
[background technology]
Required recent automatic transmission lightweight and miniaturization and sought be improved aspect the relevant power transmitting capacity of the power output that increases with engine that this variator is used in combination.The automatic transmission or the buncher that have the lock-up clutch low speed slip (sliding latch control) of installing in some control torque converter.Drive sensation and motor torque efficiently can be sent to speed change mechanism to such an extent as to can change to improve by the absorption torque with these variators of sliding latch control improvement.Some bunchers are equipped with wet starting clutch, make this clutch slip make its coupling then so that vehicle starts reposefully from stopping at first, and this is so-called Sliding Control.The lubricating oil that requirement is used for wherein lock-up clutch or starting clutch are carried out the variator of Sliding Control has excellent nominal torque capacity, and the speed change vibrations are little, and has excellent and persistent initial antidetonation (anti-shudder) performance of quivering.
Proposed transmission fluid, wherein added friction modifier, metal detergent, ashless dispersant and anti-wear agent best and remain under the good order and condition with rubbing characteristics and the persistent initial antidetonation performance (referring to following patent documentation 1～7) of quivering is provided lock-up clutch.
For example, patent documentation 1 discloses the transmission oil composition that the specific calcium salicylate that comprises the specified quantitative of respectively doing for oneself, SP base stage are pressed the ashless dispersant of additive, specific succinimide and boracic, and said composition demonstrates for example excellent antidetonation of excellent performance and quivers performance and persistent fatigue lifetime.Patent documentation 2 discloses the succinimide that comprises metal salts of organic acids, anti-wear agent and boracic with ad hoc structure buncher lubricating oil composition as necessary component, and said composition has higher intermetallic frictional coefficient and simultaneously for the antidetonation of the slide control mechanism performance of quivering.Patent documentation 3 discloses the durable buncher lubricating oil composition that comprises calcium salicylate, phosphorous anti-wear agent, friction modifier and decentralized viscosity index improver, and said composition has higher intermetallic frictional coefficient and simultaneously for the antidetonation of the slide control mechanism performance of quivering.Patent documentation 4 discloses and has comprised dithiocarbamate (salt) compound, the branching lipid acid with 8～30 carbon atoms and the condenses of amine and the lubricating oil composition of amine antioxidants, performance that said composition has excellent and persistent antidetonation is quivered.Patent documentation 5 discloses and has comprised calcium sulphonate, phosphorous acid ester and further comprise sarcosine derivative or the automatic driver fluid composition of the reaction product of carboxylic acid and amine, and said composition has persistent antidetonation for sliding latch mechanism quiver performance and the persistent performance that prevents the scraping noise in the variable v-belt drive.Patent documentation 6 discloses the automatic transmission fluid composition of the specific azochlorosulfonate acid alkali earth metal salt that comprises specified quantitative, and said composition is excellent and have a persistent antidetonation performance of quivering on oxidative stability as the automatic transmission liquid that is used to have slide control mechanism.Patent documentation 7 discloses the automatic transmission liquid of the boric acid modified succinimide of the friction modifier that comprises calcium salicylate, magnesium salicylate, specified quantitative and specified quantitative, and it has excellent antidetonation quiver performance and certain nominal torque capacity.
But the research of carrying out according to the present inventor is found to use the salicylate purification agent to make as metal detergent and is difficult to the nominal torque capacity that at high temperature keeps enough.Also find when using sulfonate detergent, the antidetonation of the resulting composition still deficiency of performance of quivering, and usually can not keep enough nominal torque capacity.On the other hand, find to improve the nominal torque capacity and makes the Wet-type friction material serious wear, and the life-time service resulting composition makes and is difficult to keep fully initial nominal torque capacity and speed change characteristic and the antidetonation weather resistance of quivering to tend to variation.For the carbonaceous material that contains excellent heat resistance for example carbon fiber, graphite and sooty Wet-type friction material, worry since various additives to the adsorptivity of this material, conventional transmission fluid can not manifest above-mentioned performance, the particularly antidetonation poor performance of quivering.
Therefore, the lubricating oil composition that need have the speed change characteristic of high specified torque capacity and excellence, it is suitable as the transmission fluid of automatic transmission and/or buncher, and importantly this lubricating oil composition is improved and suppresses Wet-type friction material wearing and tearing at the antidetonation aspect of performance that quivers, and keeps above-mentioned performance simultaneously.In addition, need be for containing the transmission fluid that carbon-carbon friction material manifests above-mentioned aspect of performance no problem, this contains carbon-carbon friction material and mainly forms and contain fiber or the filler of being made by carbon by aromatic polyamide fibre or cellulosic fibre.
(1) patent documentation 1: the spy opens the 2003-113391 communique
(2) patent documentation 2: the spy opens the 2001-323292 communique
(3) patent documentation 3: the spy opens the 2000-355695 communique
(4) patent documentation 4: the spy opens flat 11-50077 communique
(5) patent documentation 5: the spy opens flat 10-306292 communique
(6) patent documentation 6: the spy opens flat 10-25487 communique
(7) patent documentation 7: the spy opens the 2000-63869 communique
[summary of the invention]
In view of the foregoing, the object of the present invention is to provide to have excellent nominal torque capacity and speed change characteristic, be suitable as the lubricating oil composition of automatic transmission and/or buncher liquid.In addition, the present invention also aims to provide and except above-mentioned performance, also have the excellent antidetonation performance of quivering, perhaps except above-mentioned performance, also have excellent abrasion resistance and the antidetonation weather resistance of quivering for Wet-type friction material, keep initial nominal torque capacity and speed change characteristic simultaneously for a long time, be suitable as the lubricating oil composition of automatic transmission and/or buncher liquid.Composition of the present invention not only can demonstrate these extremely excellent performances for the paper friction materials of routine, and particularly also can demonstrate these performances for the Wet-type friction material that contains carbonaceous material no problem.
As the present inventor to achieve these goals and the result of the broad research of carrying out, can realize the discovery of above-mentioned purpose based on using than the lubricating oil composition that comprises sulfonate detergent, salicylate purification agent and boracic succinimide additive, finish the present invention with specific separately amount and specified quantitative.
That is, the invention provides lubricating oil composition, it comprises base oil and based on the following component of the total mass of said composition:
(A) sulfonate detergent, in amount of metal (MeA), its amount is 0.01～0.3 quality %;
(B) salicylate purification agent, in amount of metal (MeB), its amount is 0 or greater than 0～0.1 quality %; With
(C) boracic succinimide class ashless dispersant, in boron amount (BoC), its amount is 0.001～0.1 quality %;
(MeB)/(MeA) being 0 or greater than 0～1.5, (MeA)/(BoC) is 0.001～20.
Lubricating oil composition of the present invention has excellent nominal torque capacity, speed change characteristic and the antidetonation performance of quivering, perhaps when keeping these performances, also have excellent abrasion resistance and the antidetonation weather resistance of quivering for Wet-type friction material, and can keep initial nominal torque capacity and speed change characteristic for a long time.Therefore, this lubricating oil composition is especially suitable for use as automatic transmission and/or buncher liquid.
[embodiment]
To illustrate in greater detail the present invention below.
Lubricant base to lubricating oil composition of the present invention is not particularly limited.Therefore, described lubricant base can be mineral base oil or synthetic base oil.
The specific examples of mineral oil comprises that the lubricating oil distillate that can produce by the air distillation Residual oil vacuum distilling that makes the crude oil atmospheric distillation gained stands to be selected from those that following any one or multiple processing make: solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing and hydrofining; The isomerized mineral oil of wax; And those by GTL WAX (Gas to Liquid Wax (gas-liquid wax)) isomerization is made.
The example of synthetic lubricant base oil comprises polybutene and hydride thereof; Poly-alpha-olefin is 1-octene oligopolymer and 1-decene oligopolymer for example, and hydride; Diester is pentanedioic acid two (tridecyl) ester, di-2-ethylhexyl adipate, diisodecyl adipate, hexanodioic acid two (tridecyl) ester and Diisooctyl Sebacate for example; Polyol ester is DOPCP, trimethylolpropane caprylate, TriMethylolPropane(TMP) pelargonate, tetramethylolmethane-2-ethylhexanoate and tetramethylolmethane pelargonate for example; The aromatic series synthetic oil is alkylnaphthalene, alkylbenzene and aromatic ester for example; And the mixture of aforementioned substances.
The example that can be used for the present invention's lubricant base comprises above-mentioned mineral base oil and synthetic base oil and is selected from two or more oily mixtures in these base oils.For example, being used for base oil of the present invention can be one or more mineral base oils or synthetic base oil, perhaps the mixing oil of one or more mineral base oils and one or more synthetic base oils.
Kinematic viscosity to lubricant base of the present invention is not particularly limited.Yet, preferably regulate described lubricant base so that the kinematic viscosity under 100 ℃ is preferably 2～8mm
2/ s, more preferably 2.5～6mm
2/ s, preferred especially 3～4.5mm
2/ s.Kinematic viscosity under not preferred 100 ℃ is greater than 8mm
2The base oil of/s, because the low temperature viscosity characteristic of gained lubricating oil composition can variation, the kinematic viscosity under also not preferred 100 ℃ is less than 2mm simultaneously
2The base oil of/s is because the gained lubricating oil composition can inadequate oil film formation makes the vaporization losses of poor lubricity and lubricant base big in lubricated position owing to it.
Sulphur content in the described lubricant base is not particularly limited.Yet sulphur content is preferably 0.1 quality % or littler, more preferably 0.05 quality % or littler, more preferably 0.01 quality % or littler.
Vaporization losses to described lubricant base is not particularly limited.Yet NOACK vaporization losses is preferably 10～50 quality %, more preferably 20～40 quality %, preferred especially 22～35 quality %.Use is adjusted in lubricant base in the above-mentioned scope with NOACK vaporization losses and makes and can obtain cold property and abrasion resistance simultaneously.The vaporization losses that term used herein " NOACK vaporization losses " expression is measured according to CEC L-40-T-87.
Specifically, described lubricant base is preferably the mixture of following two kinds of base oils: (a) kinematic viscosity under 100 ℃ is 1.5～3.5mm
2/ s, preferred 2～3.2mm
2/ s, more preferably 2.5～3mm
2/ s, sulphur content be 0.05 quality % or littler, preferred 0.01 quality % or littler, more preferably 0.005 quality % or littler and NOACK vaporization losses be 20～80 quality %, preferred 30～65 quality %, more preferably 30～55 quality % base oil and (b) kinematic viscosity under 100 ℃ be 3.5～6mm
2/ s, preferred 3.8～4.5mm
2/ s, more preferably 3.9～4.5mm
2/ s, sulphur content be 0.05 quality % or littler, preferred 0.01 quality % or littler, more preferably 0.005 quality % or littler and NOACK vaporization losses are 5～20 quality %, preferred 10～18 quality %, the more preferably base oil of 12～16 quality %, both were with 10: 90～90: 10, preferred 25: 75～75: 25, more preferably 40: 60～60: to such an extent as to kinematic viscosity, sulphur content and NOACK vaporization losses that 40 mass ratio mixes under 100 ℃ of this mixed base oil are in the above-mentioned scope.The result makes can prepare the composition that has cold property and lubricity when being suitable for transmission oil composition.
Randomly, can to contain 100 ℃ of following kinematic viscosity a spot of, for example 5～30 quality % be 6mm to above-mentioned mixed base oil
2/ s or bigger, preferred 10～35mm
2/ s, sulphur content is 0.05～1 quality %, preferred 0.1～0.7 quality %, more preferably 0.2～0.6 quality % and NOACK vaporization losses are 10 quality % or littler, preferred 5 quality % or littler, more preferably 3 quality % or littler base oil.
Component in the lubricating oil composition of the present invention (A) is a sulfonate detergent.
The example of sulfonate detergent comprises the basic metal or the alkaline earth salt of alkyl aryl sulfonate, special preferably magnesium and/or calcium salt, this alkyl aryl sulfonate is by with molecular weight being 100～1,500, preferred 200～700 alkyl aromatic compound sulfonation and preparing.The specific examples of alkyl aryl sulfonate comprises mahogany acid and synthetic sulfonic acid.Mahogany acid can be those or the mahogany acid of by-product can be WHITE OIL PRODUCTION time for preparing by alkyl aromatic compound sulfonation contained in the lubricating oil distillate with mineral oil.Synthetic sulfonic acid can be those that prepare by the alkylbenzene sulfonation that will have straight chain or branched-alkyl, this alkylbenzene is produced as by product as the equipment of the alkylbenzene of detergent feedstocks by preparation or by polyolefine alkylation on benzene is prepared, or prepare by sulfonation dinonyl naphthalene those.The sulphonating agent that is used for these alkyl aromatic compounds of sulfonation is not particularly limited.This sulphonating agent can be oleum or sulfuric acid.
Alkaline earth metal sulfonate not only comprises neutral alkaline earth metal sulfonate, this neutrality alkaline earth metal sulfonate by make the abovementioned alkyl aromatic sulphonic acid directly with alkaline earth metal alkali for example alkaline-earth metal for example the oxide compound of magnesium and/or calcium or oxyhydroxide react and prepare or by once alkyl aryl sulfonate being converted into an alkali metal salt for example sodium salt or sylvite, prepare with alkaline earth salt displacement-alkali metal-salt then; And comprising alkali formula alkaline earth metal sulfonate, it prepares by this neutrality alkaline earth salt of heating and excessive alkaline earth salt or alkaline earth metal alkali (oxyhydroxide or oxide compound) in the presence of water; With carbonate high alkaline alkaline earth metal sulfonate and borate high alkaline alkaline earth metal sulfonate, its by carbonic acid gas and/or boric acid or boratory in the presence of this neutrality alkaline earth metal sulfonate and alkaline-earth metal alkali reaction are prepared.
The sulfonate detergent of indication can be any sulfonate in above-mentioned neutral alkaline earth metal sulfonate, alkali formula alkaline earth metal sulfonate, high alkaline alkaline earth metal sulfonate and their mixture herein.
The component of using among the present invention (A) is calcium sulfonate detergents or sulfonic acid magnesium purification agent preferably, preferred especially calcium sulfonate detergents, and reason is that it has the effect of excellent raising nominal torque capacity.
Although sulfonate detergent can be purchased under the state with the dilution of light lubricating oil base oil usually, preferably using its metal content is the sulfonate detergent of 1.0～20 quality %, preferred 2.0～16 quality %.
The base number of the sulfonate detergent that uses among the present invention be choose wantonly and be generally 0～500mgKOH/g.But, preferably use base number to be preferably 100～450mgKOH/g, the more preferably sulfonate detergent of 200～400mgKOH/g, reason is that it has the effect of excellent raising nominal torque capacity.
Term used herein " base number " expression is according to the 7th part of JIS K2501 " mensuration of petroleum products and lubricating oil-neutralization value (Petroleum products and lubricants-Determination of neutralization number) ", the base number that adopts the perchloric acid potentiometric titration to measure.
The content of component in the lubricating oil composition of the present invention (A) based on the total mass of said composition, in amount of metal (MeA), is 0.01～0.3 quality %, preferred 0.02～0.2 quality %, preferred especially 0.04～0.15 quality %.The content of component (A) makes to prepare to have the quiver lubricating oil composition of performance of excellent nominal torque capacity, speed change characteristic and antidetonation in these scopes.In order further to improve nominal torque capacity and speed change characteristic, based on the total mass of said composition, in amount of metal (MeA), the content of component (A) is preferably 0.05～0.3 quality %, more preferably 0.1～0.25 quality %.
The component of using in the lubricating oil composition of the present invention (B) is the salicylate purification agent.There is no particular restriction to the structure of component (B).But this salicylate purification agent preferably has the salicylic metal-salt of one or two alkyl that contains 1～40 carbon atom, preferred as alkali or alkaline earth salt, special preferably magnesium and/or calcium salt.
Component (B) preferably contains the salicylate purification agent of dialkyl group salicylic acid metal salt, in order further to improve the antidetonation weather resistance of quivering, special preferred alkyl salicylic acid metal salt and/or its (high alkalinity) subsalt, wherein the component ratio of monoalkyl salicylic acid metal salt is 85～100 moles of %, and the component ratio of dialkyl group salicylic acid metal salt is that the component ratio of 0～15 mole of % and 3-alkylated salicylamide acid metal salt is 40～100 moles of %.
Term used herein " monoalkyl salicylic acid metal salt " expression has the alkylated salicylamide acid metal salt of an alkyl, for example 3-alkylated salicylamide acid metal salt, 4-alkylated salicylamide acid metal salt and 5-alkylated salicylamide acid metal salt.The component ratio of described monoalkyl salicylic acid metal salt based on the alkylated salicylamide acid metal salt of 100 moles of %, is 85～100 moles of %, preferred 88～98 moles of %, more preferably 90～95 moles of %.Alkylated salicylamide acid metal salt except that described monoalkyl salicylic acid metal salt, for example the component ratio of dialkyl group salicylic acid metal salt is 0～15 mole of %, preferred 2～12 moles of %, more preferably 5～10 moles of %.The component ratio of described 3-alkylated salicylamide acid metal salt based on the alkylated salicylamide acid metal salt of 100 moles of %, is 40～100 moles of %, preferred 45～80 moles of %, more preferably 50～60 moles of %.Total component ratio of 4-alkylated salicylamide acid metal salt and 5-alkylated salicylamide acid metal salt is consistent with the component ratio of alkylated salicylamide acid metal salt except that 3-alkylated salicylamide acid metal salt and dialkyl group salicylic acid metal salt, and alkylated salicylamide acid metal salt based on 100 moles of %, be 0～60 mole of %, preferred 20～50 moles of %, more preferably 30～45 moles of %.Comprising that a small amount of dialkyl group salicylic acid metal salt makes can prepare the composition that has abrasion resistance and cold property simultaneously.The component ratio of 40 moles of % or bigger 3-alkylsalicylate makes the component ratio that can reduce 5-alkylated salicylamide acid metal salt relatively and thereby improve the oil soluble of resulting composition.
The example of alkyl that constitutes the alkylated salicylamide acid metal salt of component (B) comprise have 10～40, preferred 10～19 or 20～30, the more preferably alkyl of 14～18 or 20～26, preferred especially 14～18 carbon atoms.Example with alkyl of 10～40 carbon atoms comprises for example those alkyl of decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, ceryl, heptacosyl, octacosyl, nonacosyl and triacontyl.These alkyl can be straight chain or branching and can be the primary and secondary alkyl.Yet preferred secondary alkyl is because can easily prepare the salicylic acid metal salt that satisfies above-mentioned requirement to component (B).
The example of the metal of described alkylated salicylamide acid metal salt comprises basic metal for example sodium and potassium, and alkaline-earth metal for example calcium and magnesium.This metal is calcium or magnesium preferably, preferred especially calcium.
The method for preparing the component of using among the present invention (B) is not particularly limited, thereby it can be by any currently known methods preparation.For example, by with 1 mole or more have the alkene of 10～40 carbon atoms, the for example polymkeric substance of ethene, propylene or butylene or multipolymer, preferred linear alpha-olefin is ethene polymers for example, with 1 moles of phenol alkylation, should alkylating phenol carboxylated with carbon dioxide then, perhaps by with 1 mole or more above-mentioned alkene, preferred above-mentioned linear alpha-olefin is made 1 mole of bigcatkin willow dialkylaminobenzoic acidization to contain the alkyl salicylate of monoalkyl Whitfield's ointment as main ingredient.Make this alkyl salicylate and metal base for example basic metal or alkaline earth metal oxide or oxyhydroxide reaction then, perhaps change into an alkali metal salt for example sodium salt or sylvite, this an alkali metal salt can further be replaced with alkaline-earth metal.Particularly preferably, the reaction ratio of phenol or Whitfield's ointment and alkene is adjusted to preferred 1: 1～1.15 (mol ratios), more preferably 1: 1.05～1.1 (mol ratios) are because the component ratio of monoalkyl salicylic acid metal salt and dialkyl group salicylic acid metal salt is adjusted to the desired desired proportion of stipulating among the present invention of component (B) easily.In addition, especially preferably linear alpha-olefin is used as described alkene, because the component ratio of 3-alkylated salicylamide acid metal salt, 5-alkylated salicylamide acid metal salt etc. is adjusted to the desired desired proportion of component (B) easily, and the alkylated salicylamide acid metal salt that preferably has secondary alkyl in the present invention can be used as main ingredient and obtains.The alkene that does not preferably use branching is as above-mentioned alkene, because have only 5-alkylated salicylamide acid metal salt to prepare easily, but must improve oil soluble and have the component (B) of formation given to this invention by mixing 3-alkylated salicylamide acid metal salt, make this method to change with preparation.
Be used for component of the present invention (B) and also comprise subsalt, it is by in the presence of water, the basic metal of preparation as mentioned above or alkaline-earth metal salicylate (neutral salt) are heated with excess base metal or alkaline earth salt or basic metal or alkaline earth metal alkali (oxyhydroxide of basic metal or alkaline-earth metal or oxide compound) and prepares; With high alkalinity salt, its by make described neutral salt and alkali for example basic metal or alkaline-earth metal oxyhydroxide carbonic acid gas, boric acid or boratory in the presence of react and prepare.
These reactions are carried out in solvent (aliphatic hydrocarbon solvent is hexane for example, and aromatic hydrocarbon solvent is dimethylbenzene and light lubricating oil base oil for example) usually.The preferred solvent of its metal content in 1.0～20 quality %, preferred 2.0～16 quality % scopes that use.
For the component of using among the present invention (B), most preferably alkylated salicylamide acid metal salt and/or its (high alkalinity) subsalt, wherein the component ratio of monoalkyl salicylic acid metal salt and dialkyl group salicylic acid metal salt is respectively 85～95 moles of % and 5～15 moles of %, and 3-alkylated salicylamide acid metal salt and 4-alkylated salicylamide acid metal salt and 5-alkylated salicylamide acid metal salt are respectively 50～60 moles of % and 35～45 moles of %, the excellent performance because the initial antidetonation of the lubricating oil composition of gained is quivered.Here the especially preferably secondary alkyl of the alkyl of mentioning.
The base number of the component of using among the present invention (B) is generally 0～500mgKOH/g, preferred 20～300mgKOH/g, preferred especially 100～200mgKOH/g.Can use base number one or more compounds in these scopes.Term used herein " base number " expression is according to the 7th part of JIS K2501 " mensuration of petroleum products and lubricating oil-neutralization value (Petroleum products andlubricants-Determination of neutralization number) ", the base number that adopts the perchloric acid potentiometric titration to measure.
The content of component in the lubricating oil composition of the present invention (B), total mass based on described composition, in amount of metal (MeB), be 0.001～0.1 quality %, preferred 0.005～0.08 quality %, more preferably 0.01～0.04 quality %, reason is that this content makes can prepare in the isostatic mode to have the quiver lubricating oil composition of performance of excellent nominal torque capacity, speed change characteristic and antidetonation.In order further to improve quiver performance and keep nominal torque capacity and speed change characteristic of antidetonation in the isostatic mode, the content of component (B) is based on the total mass of described composition, in amount of metal (MeB), be preferably 0.005～0.05 quality %, more preferably 0.008～0.02 quality %.
The component of lubricating oil composition of the present invention (C) is a boracic succinimide class ashless dispersant.
The example of boracic succinimide class ashless dispersant comprise by with boric acid or borate to per molecule have at least 1 contain preferred 40～400, more preferably the succinimide of the alkyl of 60～350 carbon atoms or alkenyl carries out those that modification prepares.This succinimide can be monotype or dimorphism, but is preferably dimorphism especially.As long as component (C) contains boron, it can be to use the monocarboxylic acid (lipid acid etc.) with 2～30 carbon atoms by being selected from, polycarboxylic acid with 2～30 carbon atoms, for example oxalic acid, phthalic acid, trimellitic acid or Pyromellitic Acid, the acid that contains phosphorus for example one or more in those modifications of phosphorous acid or phosphoric acid and sulfocompound plant modifications and prepare those in any boracic succinimide class ashless dispersant.
Alkyl or alkenyl with 40～400 carbon atoms can be straight chain or branching, but are preferably branching.Specific examples comprises by the alkene oligopolymer of propylene, 1-butylene or iso-butylene for example, or the co-oligomer deutero-of ethene and propylene has 40～400, the branched-alkyl or the alkenyl of preferred 60～350 carbon atoms.Be less than the alkyl of 40 carbon atoms or the compound that alkenyl can be created in low-solubility in the lubricant base, and can make the low-temperature fluidity of resulting composition poor above the alkyl or the alkenyl of 400 carbon atoms.
The content of component in the lubricating oil composition of the present invention (C) is based on the total mass of said composition, in boron amount (BoC), be 0.001～0.1 quality %, preferred 0.005～0.08 quality %, more preferably 0.01～0.05 quality %, preferred especially 0.015～0.025 quality %.The content of component (C) makes can to prepare in the isostatic mode to have the quiver lubricating oil composition of performance of excellent nominal torque capacity, speed change characteristic and antidetonation in these scopes.In order further to improve the antidetonation weather resistance of quivering, in the boron amount, this content is preferably below the 0.04 quality %, is preferably especially below the 0.02 quality %.In order further to improve antidetonation quiver weather resistance and speed change characteristic, in the boron amount, this content is preferably below the 0.02 quality %, more preferably below the 0.01 quality %.In order to improve the nominal torque capacity, the particularly variation of nominal torque capacity under the high temperature and the nominal torque capacity that reduces to produce by temperature variation, keep antidetonation quiver weather resistance and speed change characteristic simultaneously, in the boron amount, this content is preferably more than the 0.01 quality %, more preferably more than the 0.015 quality %.Based on the total mass of said composition, with nitrometer, the content of component (C) is generally 0.05～0.4 quality %, preferred 0.01～0.2 quality %, more preferably 0.02～0.15 quality %.In order further to improve the antidetonation weather resistance of quivering, with nitrometer, this content is preferably below the 0.01 quality %, more preferably below the 0.08 quality %, below the preferred especially 0.05 quality %.
In lubricating oil composition of the present invention, be 0 or by the component (A) and the mass ratio (B) of ((MeB)/(MeA)) definition greater than 0～1.5, be preferably 0.01～1.5, more preferably 0.05～1.4, more preferably 0.1～1, more preferably 0.15～0.8, be preferably 0.2～0.4 especially.
Component (A) is used in combination with each component of independent use with (B) compares, can further improve quiver weather resistance and under higher level, keep nominal torque capacity under the high temperature of antidetonation.
Component (A) and mass ratio (C) by ((MeA)/(BoC)) definition they are 0.001～20, are preferably 0.1～10, more preferably 0.5～5, more preferably 1～3.5, be preferably 1.5～3.2 especially.
When (MeB)/(MeA) is 0, preferred owing to can improve the nominal torque capacity, and in order further to improve the nominal torque capacity, BoC is preferably 0.04～0.1 quality %, 0.05～0.08 quality % more preferably, and in order further to improve speed change characteristic and the antidetonation weather resistance of quivering, BoC is preferably 0.001～0.04 quality %, more preferably 0.01～0.035 quality %.When (MeB)/(MeA) is greater than 0～1.5, preferred 0.01～less than 1, more preferably 0.05～0.8 o'clock, can to make the nominal torque capacity maintain high level and have the quiver lubricating oil composition of performance and speed change characteristic of excellent antidetonation in order to prepare, BoC is more preferably less than 0.025 quality % preferably less than 0.04 quality %, is more preferably less than 0.02 quality %, and MeA/BoC is preferably 2～10, more preferably 2.5～5.In order to improve the nominal torque capacity under the high temperature particularly and to reduce the temperature dependency of nominal torque capacity, keep antidetonation quiver weather resistance and speed change characteristic simultaneously, preferred 0.01～0.1 quality % of BoC, more preferably 0.015～0.06 quality %, and MeA/BoC is preferably 0.1～5, more preferably 1.0～3.2, be preferably 2～3.0 especially.
Preferably, lubricating oil composition of the present invention also contains (D) triazole class compounds.
Can manifest the abrasion resistance for Wet-type friction material as long as confirm this compound, there is no particular restriction for (D) triazole class compounds.This examples for compounds comprises (alkyl) benzotriazole and the derivative thereof shown in the formula (1):
In the formula (1), R be have 1～30, the alkyl of preferred 1～8 carbon atom.The example of alkyl comprise alkyl, alkenyl, (alkyl) aryl and arylalkyl (alkyl and alkenyl can be straight chain or branching), they can contain oxygen-containing substituents for example hydroxyl, alkoxyl group or carboxyl.The integer of letter " n " expression 0～3, preferred 0～2 integer is preferably 1 especially.
The preferred embodiment of (alkyl) benzotriazole shown in the formula (1) comprises benzotriazole; With the alkyl benzotriazole of methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl and the tertiary butyl for example of the alkyl with 1～3 straight chain that contains 1～4 carbon atom or branching.Consider excellent antioxidant property, (alkyl) benzotriazole shown in the formula (1) preferably wherein R be that methyl or ethyl and n are 1 or 2 compound.The specific examples of such compound comprises Methylbenzotriazole (tolyl-triazole), dimethylbiphenyl triazole, ethyl benzotriazole, ethyl-methyl benzotriazole, diethyl benzo triazole and their mixture.
The example of (alkyl) benzotriazole derivatives comprises by making (alkyl) benzotriazole shown in the formula (1) and at least a compound that is selected from amine, aldehyde, carboxylic acid and the alcohol react those that prepare.Preferred examples comprises the amine salt of (alkyl) benzotriazole, alkyl amino (alkyl) benzotriazole, the reaction with same mole product of (alkyl) benzotriazole, amine and aldehyde, the reaction with same mole product of (alkyl) benzotriazole, alcohols and aldehydes.
The example of amine comprises uncle or the sechy-drocarbyl amine (alkyl is a kind or the more kinds of group that is selected from alkyl, alkenyl, (alkyl) aryl, arylalkyl and the chain triacontanol base) with 1～30 carbon atom, have the polyamines of 1～10 alkylidene amino that contains 1～10 carbon atom and their derivative.
The example of aldehyde comprises formaldehyde, paraformaldehyde, has the alkyl aldehyde of 1～30 carbon atom (alkyl is a kind or the more kinds of group that is selected from alkyl, alkenyl, (alkyl) aryl, arylalkyl and the chain triacontanol base).
The example of carboxylic acid comprises formic acid and hydrocarbon carboxylic acids (alkyl is a kind or the more kinds of group that is selected from alkyl, alkenyl, (alkyl) aryl, arylalkyl and the chain triacontanol base).These carboxylic acids can be monoprotic acid or polyprotonic acid.
The example of alcohol comprises hydrocarbon carboxylic acids (alkyl is a kind or the more kinds of group that is selected from alkyl, alkenyl, (alkyl) aryl, arylalkyl and the chain triacontanol base), and it can be monohydroxy-alcohol or polyvalent alcohol.
The preferred embodiment of component (D) comprises benzotriazole, tolyl-triazole, benzotriazole or tolyl-triazole and amine is the salt of oleyl amine for example, dioctyl amino methyl benzotriazole, dioctyl amino methyl tolyl-triazole, the condenses of 1: 1: 1 (mol ratio) of benzotriazole or tolyl-triazole, acetaldehyde and single octyl amine, and the condenses of 1: 1: 1 (mol ratio) of benzotriazole or tolyl-triazole, formaldehyde and tridecyl alcohol.More preferably tolyl-triazole and derivative thereof most preferably are tolyl-triazole.
Containing the content of component (D) sometimes in lubricating oil composition of the present invention, based on the total mass of said composition, is 0.01～5 quality %, is preferably 0.05～1 quality %, is preferably 0.1～0.2 quality % especially.Interpolation component (D) makes can further improve the nominal torque capacity, significantly suppresses the wearing and tearing of Wet-type friction material and keep nominal torque capacity and speed change characteristic for a long time under high level.In addition, component (D) helps to improve the weather resistance of Wet-type friction material and the antidetonation performance of quivering.
Preferably, lubricating oil composition of the present invention also contains (E) friction modifier.
Friction modifier as component (E) can be any compound that is used as the friction modifier of lubricating oil usually.Specific examples comprises amine, acid imide, amides and fatty acid friction modifier, and each their intramolecularly of leisure has at least one alkyl that contains 6～30 carbon atoms or alkenyl, particularly contains the straight chained alkyl or the alkenyl of 6～30 carbon atoms.
The example of amine friction modifier comprises straight chain or aliphatic monoamine, aliphatic and the aliphatic polyamine branching, preferred straight chain that for example has 6～30 carbon atoms separately, and those materials of the oxyalkylene affixture of these aliphatic amines.
The example of acid imide friction modifier comprises that succinimide class friction modifier for example has one or two and contains 6～30, the straight chain of preferred 8～18 carbon atoms or the list and/or the double amber imide of alkyl branching, preferred branched, and by making described succinimide and being selected from boric acid, phosphoric acid, having the carboxylic acid of 1～20 carbon atom and in the sulfocompound one or more are planted the succinimide modified compound of compound prepared in reaction.
The example of amides friction modifier comprises fatty acid acyl amine friction modifier, for example have the straight chain of 7～31 carbon atoms or branching, the lipid acid of preferred straight chain and the acid amides of ammonia, aliphatic monoamine or aliphatic polyamine.
The example of fatty acid friction modifier comprises the lipid acid of straight chain straight chain or branching, preferred, the fatty acid ester of described lipid acid and aliphatic monohydric alcohol or aliphatic polyol, fatty acid metal salt be alkaline earth salt of described lipid acid (magnesium salts and calcium salt) and described zinc salts of fatty acids for example.
In the present invention, above-mentioned acid imide friction modifier, particularly succinimide class friction modifier not only can improve humid clutch frictional coefficient and thereby improve power transmission efficiency, and significantly improve the antidetonation weather resistance of quivering effectively.
Because they have excellent speed change characteristic and the antidetonation weather resistance of quivering, and can significantly improve the nominal torque capacity, therefore preferred especially above-mentioned amides friction modifier, and when (MeB)/(MeA) is 0, especially can demonstrate these effects.
In above-mentioned friction modifier, preferred especially aliphatic amine friction modifier and the fatty acid friction modifier of using, especially fatty acid metal salt, because they can improve the nominal torque capacity and further reduce the wearing and tearing of Wet-type friction material, and speed change excellent and can significantly improve the initial antidetonation performance of quivering.Particularly preferably, lubricating oil composition contains these aliphatic amine friction modifier and/or fatty acid friction modifiers, and when (MeB)/(MeA) is greater than 0～1.5 the time or during use (alkyl) aromatic yl phosphite, especially can demonstrates and improve the quiver effect of weather resistance of antidetonation.When aliphatic amine friction modifier and fatty acid friction modifier are used in combination, mass ratio is not particularly limited.Yet this mass ratio is preferably 1: 5～and 5: 1, more preferably 1: 3～3: 1, preferred especially 1: 2～2: 1.
Among the present invention, lubricating oil composition can contain any one compound or two or more compounds in the above friction modifier that exemplifies of being selected from of any amount.Yet its content is generally 0.01～5.0 quality % based on the total mass of said composition, preferred 0.03～3.0 quality %.
Preferably, lubricating oil composition of the present invention also contains (F) phosphorous anti-wear agent.
As long as it is phosphorous in its molecule, the phosphorous anti-wear agent that uses as component (F) is not particularly limited.The example of this phosphorous anti-wear agent comprises phosphate monoester, phosphodiester, phosphotriester, phosphorous acid monoesters, phosphorous acid diester, tris phosphite, thiophosphoric acid monoesters, thiophosphoric acid diester, phosphorothioate triesters, thiophosphorous acid monoesters, thiophosphorous acid diester and thiophosphorous acid three esters, has the alkyl that contains 1～30 carbon atom separately; The salt of these esters and amine or alkanolamine; With the metal-salt of these esters zinc salt for example.The example that contains the alkyl of 1～30 carbon atom comprises aryl and the arylalkyl that alkyl, cycloalkyl, alkenyl, the cycloalkyl of alkyl replacement, aryl, alkyl replace, and can contain one or more kinds in these groups.
Preferred phosphorous anti-wear agent is phosphorous acid ester or the phosphoric acid ester that has the alkyl that contains 4～20 carbon atoms or contain (alkyl) aryl of 6～12 carbon atoms, and is selected from by making a kind of compound in the amine salt that these esters and the alkylamine with the alkyl that contains 1～18 carbon atom prepare or the mixture of two or more compounds.More preferably be selected from the phosphorous acid ester for example a kind of compound in the phenyl-phosphite or the mixture of two or more compounds of dibutyl phosphite and phosphorous acid ester with (alkyl) aryl that contains 6～12 carbon atoms for example with the alkyl that contains 4～20 carbon atoms.The phosphorous acid diester that especially preferably has (alkyl) aryl that contains 6～12 carbon atoms, for example phosphorous acid diphenyl ester.
In the lubricating oil composition of the present invention,,, be generally 0.01～5 quality %,, be preferably 0.001～0.1 quality % in the phosphorus amount all based on the total amount of said composition when the content that contains sometimes (F) phosphorous anti-wear agent.Although for example contain phosphorous anti-wear agent below the 0.005 quality % with lower concentration, also can realize advantageous effects of the present invention, but in order further to improve for the abrasion resistance of metallic substance and the antidetonation weather resistance of quivering, its content is preferably 0.005～0.08 quality %, 0.01～0.06 quality % more preferably, preferred especially 0.02～0.05 quality %.
The content of phosphorous anti-wear agent makes to prepare to have excellent abrasion resistance and initial antidetonation quiver performance and the long-term latter's of maintenance lubricating oil composition easily in above-mentioned scope.
For in the content of the component (A) of amount of metal (MeA) and mass ratio in the content of the phosphorous anti-wear agent of phosphorus amount (P), promptly ((MeA)/(P)) there is no particular restriction.But this mass ratio is preferably 0.1～250, more preferably 0.5～50, more preferably 0.8～5, preferred especially 1～3.The content of component (A) and mass ratio in the content of the phosphorous anti-wear agent of phosphorus amount (P) make to prepare to have the quiver performance and the long-term easily maintenance latter's lubricating oil composition of excellent abrasion resistance and initial antidetonation in above-mentioned scope.
Because said components constitutes, lubricating oil composition of the present invention has excellent nominal torque capacity, speed change characteristic and the antidetonation performance of quivering in the isostatic mode.But,, it can be mixed with various known additives in order further to improve the performance of lubricating oil composition of the present invention or the composition with lubricating oil composition desired properties to be provided.The example of described additive comprises ashless dispersant except that component (C), except that component (A) with metal detergent, antioxidant, extreme-pressure additive, viscosity index improver, metal passivator, rust-preventive agent, corrosion inhibitor, pour point depressant, swell rubber agent, defoamer and dyestuff (B).These additives can be used alone or in combination.
Described ashless dispersant can be any ashless dispersant that is generally used in those of lubricating oil.The example of this ashless dispersant comprises that nitrogenous compound for example has at least one in each comfortable their molecule and contains 40～400, the alkyl of preferred 60～350 carbon atoms or succinimide, benzylamine and the polyamines of alkenyl, with and derivative or modified product.This contain the alkyl of 40～400 carbon atoms or alkenyl can be straight chain or branching and preferably derived from the alkene for example alkyl or the alkenyl of the branching of the copolymerized oligomer of the oligopolymer of propylene, 1-butylene or iso-butylene or ethene and propylene.Be less than the alkyl of 40 carbon atoms or alkenyl and can cause compound poorly soluble in lubricant base, and reduce more than the low-temperature fluidity that the alkyl or the alkenyl of 400 carbon atoms can make the gained lubricating oil composition.
The derivative of the nitrogenous compound of enumerating as the example of ashless dispersant or the specific examples of modified product comprise by make above-mentioned arbitrarily nitrogenous compound and the polycarboxylic acid that has the monocarboxylic acid (lipid acid etc.) of 2～30 carbon atoms or have 2～30 carbon atoms for example oxalic acid, phthalic acid, trimellitic acid and Pyromellitic Acid reaction so that the sour modified compound that all or part of remaining amino and/or imino-neutralization or amidation prepare; By making the reaction of above-mentioned arbitrarily nitrogenous compound and phosphoric acid or phosphorous acid so that the phosphorus modified compound that all or part of remaining amino and/or imino-neutralization or amidation prepare; By the sulphur modified compound that the reaction of above-mentioned arbitrarily nitrogenous compound and sulphur compound is prepared; And above-mentioned nitrogenous compound is by being selected from the modified product for preparing with the combination of two or more modifications in the modification of acid, p and s.
Lubricating oil composition of the present invention can contain any one compound or two or more compounds in the above ashless dispersant that exemplifies of being selected from of any content.Yet its content is generally 0.1～10 quality % based on the total mass of said composition, is preferably 1～6 quality %.
Lubricating oil composition of the present invention preferably contains these ashless dispersants except that component (C) arbitrarily, and this dispersion agent is preferably the not succinimide class ashless dispersant of boracic.
The content of the succinimide class ashless dispersant of boracic not, with nitrometer, be generally 0.005～0.4 quality %, preferred 0.01～0.2 quality %, if but, can improve the nominal torque capacity, but the speed change characteristic is tended to variation because this content surpasses 0.1 quality %, therefore 0.01～0.08 quality % more preferably, preferred especially 0.02～0.05 quality %.
Composition of the present invention can contain component (C) or component (C) and the ashless dispersant except that component (C), but preferably contain component (C) or component (C) and the ashless dispersant except that component (C), to such an extent as to the mass ratio of boron content that contains in these ashless dispersants and nitrogen content (B/N ratio) is 0.05～1.2.In order further to improve the nominal torque capacity, this B/N ratio is preferably 0.3～1.2, and more preferably 0.4～0.8.In order further to improve the antidetonation weather resistance of quivering, this B/N is than more preferably 0.1～0.5, and more preferably 0.13～0.35, on high level, improve antidetonation quiver weather resistance, nominal torque capacity and speed change characteristic in the isostatic mode thus.
Except that component (A) and the example of the metal detergent (B) comprise the phenates purification agent.
The example of phenates purification agent comprises by making having alkaline earth salt, particularly magnesium salts and/or the calcium salt that at least one contains the alkylphenol of 4～30, the straight chain of preferred 6～18 carbon atoms or branched-alkyl and alkylphenol sulfide that reaction of Salmon-Saxl prepares or the Mannich reaction products by making the alkylphenol that described alkylphenol and formaldehyde reaction prepare.
Except that component (A) and the base number of the metal detergent (B) be generally 0～500mgKOH/g, preferred 20～450mgKOH/g.
To in the lubricating oil composition of the present invention except that component (A) and the content of the metal detergent (B) be not particularly limited.Yet this content is generally 0.01～5 quality % based on the total mass of said composition, preferred 0.05～1 quality %, preferred especially 0.1～0.5 quality %.
The antioxidant that can be used for the present invention can be any antioxidant that is generally used in the lubricating oil, for example phenols or aminated compounds.
The specific examples of antioxidant comprises for example 2,6 di tert butyl 4 methyl phenol of induced by alkyl hydroxybenzene; Bisphenols is methylene radical-4 for example, 4-bis-phenol (2,6 di tert butyl 4 methyl phenol); The naphthylamines class is phenyl-a-naphthylamine for example; The dialkyl diphenylamine class; (3, the 5-di-tert-butyl-hydroxy phenyl) lipid acid (propionic acid) and monobasic or polyvalent alcohol be methyl alcohol, Stearyl alcohol, 1 for example, the ester of 6-hexylene glycol, neopentyl glycol, sulfo-glycol ether, triglycol and tetramethylolmethane; Phenothiazines; The organo-metallic antioxidant is molybdenum, copper and zinc for example; And composition thereof.
Can be in lubricating oil composition of the present invention with in these compounds of any amount blend one or more.Yet the content of antioxidant is generally 0.01～5.0 quality % based on the total amount of composition.
In the present invention, preferably use phenol antioxidant and/or amine antioxidants, and special preferably combination uses phenol antioxidant and amine antioxidants, reason is easily to keep for a long time the antidetonation performance of quivering.When phenol antioxidant and amine antioxidants are used in combination, the mass ratio between them is preferably 1: 5～and 10: 1, more preferably 1: 1～8: 1, more preferably 2: 1～6: 1.
The extreme-pressure additive that can be used for the present invention can be any compound as the extreme-pressure additive of lubricating oil.The example of extreme-pressure additive comprises sulphur compounds for example dithiocarbamate (salt) class, disulfides, olefine sulfide class and vulcanized oil lipid.Can be in lubricating oil composition of the present invention with in these compounds of any amount blend one or more.Yet its content is generally 0.01～5.0 quality % based on the total mass of composition.
The specific examples of viscosity index improver comprises that non-dispersive type viscosity index improver for example is selected from one or more polymer of monomers or multipolymer or its hydride of various methacrylic esters; For example further contain the multipolymer of the various methacrylic esters of nitrogen compound with the decentralized viscosity index improver.The specific examples of other viscosity index improvers comprises that wherein alpha-olefin can be non-dispersive type or decentralized ethene-alpha-olefin copolymer or its hydride of propylene, 1-butylene or 1-amylene; Polyisobutene or its hydride; Vinylbenzene-hydrogenated diene copolymer; The phenylethylene-maleic anhydride ester copolymer; With polyoxyethylene alkylphenyl ethene.
Must consider that the shear stability of these viscosity index improvers selects its molecular weight.Particularly, the number-average molecular weight of non-dispersive type or decentralized polymethacrylate is 5,000～150,000, preferred 5,000～35,000.The number-average molecular weight of polyisobutene or its hydride is 800～5,000, preferred 1,000～4,000.The number-average molecular weight of ethene-alpha-olefin copolymer or its hydride is 800～150,000, preferred 3,000～12,000.
Can be in lubricating oil composition of the present invention be selected from one or more compounds in these viscosity index improvers with any amount blend.Yet the content of viscosity index improver is generally 0.1～20.0 quality % based on the total amount of composition.
The example of metal passivator comprises thiazolium compounds and thiadiazole compound.The preferred thiadiazole compound that uses.The example of thiadiazole compound comprises: have 2 of the straight chain that contains 6～24 carbon atoms or branched-alkyl, two (alkylthio)-1,3 of 5-, 4-thiadiazoles; Have 2 of the straight chain that contains 6～24 carbon atoms or branched-alkyl, two (the alkyl dithio-s)-1,3 of 5-, 4-thiadiazoles; Have the straight chain that contains 6～24 carbon atoms or 2-(the alkylthio)-5-sulfydryl-1,3 of branched-alkyl, the 4-thiadiazoles; Have the straight chain that contains 6～24 carbon atoms or 2-(alkyl the dithio-)-5-sulfydryl-1,3 of branched-alkyl, the 4-thiadiazoles, and composition thereof.Wherein, preferred especially 2, two (the alkyl dithio-s)-1,3 of 5-, 4-thiadiazoles.The content of these metal passivators based on the total amount of described composition, is 0.005～0.5 quality %.
The example of rust-preventive agent comprises alkenyl succinic, alkenyl succinate, polyol ester, sulfonated petro-leum and dinonylnaphthalene sulfonic acid salt.
The example of corrosion inhibitor comprises benzotriazole category, tolyl-triazole class and glyoxaline compound.
The example of pour point depressant comprises the polymethacrylate of the lubricant base that is fit to use.
The example of swell rubber agent comprises aromatic series or ester rubber swelling agent.
The example of defoamer comprises siloxanes for example dimethyl siloxane and fluorosilicone.
Although these content of additive are chosen wantonly, but total amount based on lubricating oil composition of the present invention, the content of corrosion inhibitor is 0.005～0.2 quality %, and the content of defoamer is 0.0005～0.01 quality %, and other content of additive are 0.005～10 quality %.
The kinematic viscosity of lubricating oil composition of the present invention under 100 ℃ is generally 2～25mm
2/ s, preferred 3～15mm
2/ s, more preferably 4～10mm
2/ s, more preferably 5～7mm
2/ s.
Lubricating oil composition of the present invention has excellent nominal torque capacity and speed change characteristic and the antidetonation performance of quivering.Said composition also has excellent abrasion resistance and the antidetonation weather resistance of quivering for Wet-type friction material, and can keep initial nominal torque capacity and speed change characteristic for a long time.Therefore, said composition is suitable as automatic transmission and/or buncher liquid.In addition, said composition is not only for the paper friction materials of routine, for example carbon-free aromatic polyamide or Mierocrystalline cellulose Wet-type friction material, and for containing carbonaceous material for example carbon fiber, graphite and sooty Wet-type friction material, for example contain carbon-carbon friction material, demonstrate the performance of above-mentioned remarkable excellence by what main aromatic polyamide or the fiber of being made by carbon more than the cellulose fiber peacekeeping 5 quality % or filler were formed.
Except above-mentioned those, lubricating oil composition of the present invention also has the excellent required performance of transmission fluid, thereby is applicable to the automatic or manual variator and the differential gearing of automobile, building machinery and agricultural machine.In addition, this lubricating oil composition can be used as industrial gear oil; Two petrol engine, diesel motor or gas engine lubricating oil of taking turns with automobile, generator and boats and ships such as four-wheel cars for example; Turbine oil; And compressor oil.
Lubricating oil composition of the present invention has excellent nominal torque capacity and speed change characteristic and the antidetonation performance of quivering, and is therefore suitable to automatically and/or buncher liquid.
[embodiment]
Below, will the present invention be described in more detail by the following example and comparative example, these should not be interpreted as limiting the scope of the invention.
(embodiment 1～17 and comparative example 1～4)
The lubricating oil composition of listing in the preparation table 1 and 2 according to embodiments of the invention 1～17 (is adjusted to about 7mm with the kinematic viscosity of each composition under 100 ℃
2/ s) and be used for the lubricating oil composition of the comparative example 1～4 of comparison, and carry out following evaluation test with the abrasion loss of estimating the friction materials after (1) nominal torque capacity, (2) speed change characteristic, (3) high loading endurance test and (4) antidetonation weather resistance of quivering.The result is also listed in table 1 and 2.The ratio of each base oil is based on the total mass of base oil, and each content of additive is based on the total mass of composition.
(1) nominal torque capacity
By according to JASO M348-95 " the frictional behaviour test method of automatic transmission liquid ", use SAE No.2 testing apparatus, measure the nominal torque capacity of estimating each composition through the μ s under 100 ℃ and 140 ℃ of the temperature in the stiction test after 500 circulations.Also calculate the temperature dependency of nominal torque capacity under the high temperature according to following formula.
The temperature dependency of nominal torque capacity=(T100-T140)/40 * 10
4
Nominal torque capacity under T100:100 ℃
Nominal torque capacity under T140:140 ℃
(2) speed change characteristic
By according to JASO M348-95 " the frictional behaviour test method of automatic transmission liquid ", use SAE No.2 testing apparatus, mensuration is through the μ 0 of 500 circulation back mensuration in the dynamic friction test and the ratio of μ d, and promptly μ 0/ μ d estimates the speed change characteristic of each composition.
(3) abrasion loss of friction materials
According to JASO M348-95 " the frictional behaviour test method of automatic transmission liquid ", use SAE No.2 testing apparatus to carry out the high loading endurance test, its partial condition is changed.
Moment of inertia: 0.05kgfms
2
Revolution: 3000rpm
Liquid temperature: 100 ℃
Surface pressure: 1.3MPa
Determine the abrasion loss of friction materials by the abrasion loss of measuring 30000 circulation back paper friction materialss.
(4) the antidetonation weather resistance of quivering
Estimate the antidetonation of each composition and quiver weather resistance by carry out the low speed sliding test according to JASO M349-98 " automatic transmission liquid antidetonation quiver performance test " with the antidetonation of the liquid of the antidetonation of benchmark liquid in this method is quivered weather resistance and embodiment and the comparative example weather resistance of quivering.With weather resistance is that liquid more than 48 hours is considered as having the tremble standardized liquid of performance of excellent anti, and is that liquid more than 120 hours has the tremble liquid of weather resistance of utmost point excellent anti with weather resistance.
The friction materials that uses in above-mentioned (1)～(3) is the cellulose family Wet-type friction material.
Can see having high specified torque capacity, excellent speed change characteristic and the long antidetonation weather resistance of quivering according to the composition of embodiments of the invention 1～17 from table 1 and 2 listed results.Especially, embodiment 5～8 compositions have high specified torque capacity, excellent speed change characteristic, can suppress the friction materials loss significantly, and the antidetonation weather resistance of quivering is long.Can see the composition of embodiment 9 and 10, owing to use component (B), on antidetonation is quivered weather resistance, significantly improve and can suppress the friction materials loss, on high level, keep nominal torque capacity and speed change characteristic simultaneously.In addition, the nominal torque capacity height of the composition of embodiment 11～16, the speed change excellent, and on antidetonation is quivered weather resistance, significantly improve.
On the other hand, can see when not containing component (A) (comparative example 2) that (MeB)/(MeA) surpass (comparative example 3) at 1.5 o'clock and (MeA)/(BoC) surpass (comparative example 1 and 2) at 20 o'clock, the nominal torque capacity is minimum.
Replace the friction materials of above-mentioned use and use mainly the carbon-carbon friction material that contains of forming and contain fiber of making by carbon more than the 5 quality % or filler by aromatic polyamide or cellulosic fibre, the lubricating oil composition of embodiment 11～17 is carried out test same as described above.Results verification, the composition of embodiment 11～16 improves on nominal torque capacity, its temperature dependency, speed change characteristic and antidetonation are quivered the over-all properties of weather resistance, and compares with the composition of embodiment 17, and the antidetonation weather resistance of quivering obtains extremely improving.
Claims (10)
1. lubricating oil composition, it comprises base oil and based on the following component of the total mass of said composition:
(A) sulfonate detergent, in amount of metal (MeA), its amount is 0.01～0.3 quality %;
(B) salicylate purification agent, in amount of metal (MeB), its amount is 0 or greater than 0～0.1 quality %; With
(C) boracic succinimide class ashless dispersant, in boron amount (BoC), its amount is 0.001～0.1 quality %;
(MeB)/(MeA) being 0 or greater than 0～1.5, (MeA)/(BoC) is 0.001～20.
2. lubricating oil composition according to claim 1, it further comprises (D) triazole compounds, and its amount is 0.01～5 quality %.
3. lubricating oil composition according to claim 1 and 2, it further comprises (E) friction modifier, and its amount is 0.01～5 quality %.
4. according to each described lubricating oil composition of claim 1～3, it further comprises (F) phosphorous anti-wear agent, and its amount is 0.01～5 quality %.
5. lubricating oil composition according to claim 3, it comprises and is selected from least a as component (E) in amine, acid imide, amides and the fatty acid friction modifier.
6. lubricating oil composition according to claim 4, it comprises (alkyl) aromatic yl phosphite as component (F).
7. according to each described lubricating oil composition of claim 1～6, wherein component (B) is alkylated salicylamide acid metal salt and/or its (high alkalinity) subsalt, wherein the component ratio of monoalkyl salicylic acid metal salt is 85～100 moles of %, and the component ratio of dialkyl group salicylic acid metal salt is that the component ratio of 0～15 mole of % and 3-alkylated salicylamide acid metal salt is 40～100 moles of %.
8. lubricating oil composition according to claim 1, it is used for automatic transmission and/or buncher.
9. lubricating oil composition according to claim 8 is provided with aromatic polyamide or cellulose family Wet-type friction material in wherein said automatic transmission and/or the buncher.
10. lubricating oil composition according to claim 8 is provided with the Wet-type friction material that contains carbonaceous material in wherein said automatic transmission and/or the buncher.
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| JP319878/2005 | 2005-11-02 | ||
| JP2005319878A JP5019738B2 (en) | 2005-11-02 | 2005-11-02 | Lubricating oil composition |
| PCT/JP2006/322326 WO2007052833A1 (en) | 2005-11-02 | 2006-11-01 | Lubricating oil composition |
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| JP5301305B2 (en) * | 2009-02-03 | 2013-09-25 | コスモ石油ルブリカンツ株式会社 | Lubricating oil composition for continuously variable transmission |
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| JPH09217054A (en) * | 1996-02-08 | 1997-08-19 | Osaka Gas Co Ltd | Wet-type frictional material |
| US6451745B1 (en) * | 1999-05-19 | 2002-09-17 | The Lubrizol Corporation | High boron formulations for fluids continuously variable transmissions |
| JP5283296B2 (en) * | 2001-09-17 | 2013-09-04 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition |
| JP2003130106A (en) * | 2001-10-26 | 2003-05-08 | Aisin Chem Co Ltd | Wet friction material and manufacturing method therefor |
| JP2005220197A (en) * | 2004-02-04 | 2005-08-18 | Nippon Oil Corp | Lubricating oil composition to be brought into contact with lead-containing metal material |
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| CN111205906A (en) * | 2020-02-19 | 2020-05-29 | 深圳市优宝新材料科技有限公司 | Modified carbon nanofiber, preparation method thereof and lubricating grease |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5019738B2 (en) | 2012-09-05 |
| CN101300330B (en) | 2012-10-10 |
| JP2007126541A (en) | 2007-05-24 |
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