EP0889112A1 - Schmierölzusammensetzung für automatisches getriebe - Google Patents

Schmierölzusammensetzung für automatisches getriebe Download PDF

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Publication number
EP0889112A1
EP0889112A1 EP97927369A EP97927369A EP0889112A1 EP 0889112 A1 EP0889112 A1 EP 0889112A1 EP 97927369 A EP97927369 A EP 97927369A EP 97927369 A EP97927369 A EP 97927369A EP 0889112 A1 EP0889112 A1 EP 0889112A1
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EP
European Patent Office
Prior art keywords
lubricating oil
automatic transmission
oil composition
carbons
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97927369A
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Tonen Corp. Corp. Res. & Dev. KANEKO
Takanori Tonen Corp. Corp. Res. & Dev. KUGIMIYA
Hiroshi Tonen Corp. Corp. Res. & Dev. ISHIDA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tonen General Sekiyu KK
Toyota Motor Corp
Original Assignee
Tonen Corp
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP8298082A external-priority patent/JPH09202890A/ja
Application filed by Tonen Corp, Toyota Motor Corp filed Critical Tonen Corp
Publication of EP0889112A1 publication Critical patent/EP0889112A1/de
Withdrawn legal-status Critical Current

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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/16—Amides; Imides
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    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
    • C10M129/54—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring containing hydroxy groups
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    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
    • C10M135/10—Sulfonic acids or derivatives thereof
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    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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    • 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
    • C10M2223/042—Metal salts thereof
    • 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
    • C10M2223/047—Thioderivatives not containing metallic elements
    • 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
    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
    • 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
    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
    • C10M2223/061—Metal salts
    • 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
    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
    • C10M2223/065—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds containing sulfur
    • 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
    • C10N2040/02—Bearings
    • 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
    • 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
    • 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
    • C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
    • 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
    • C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
    • 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
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • the present invention relates to a lubricating oil composition for an automatic transmission.
  • a lubricating oil composition which has a high transmission torque capacity, exhibits excellent anti-shudder property, and is particularly suited for use in an automatic transmission provided with a continuously slipping torque converter clutch.
  • the present invention also provides a method for lubricating an automatic transmission provided with a continuously slipping torque converter clutch. It also provides an a automatic transmission filled with a lubricating oil composition which has a high transmission torque capacity and exhibits excellent anti-shudder property.
  • An automatic transmission is constructed from a torque converter, a wet-type multi-plate clutch, gear wheel bearings and a hydraulic control mechanism for controlling these. It has a mechanism by which the transmission torque capacity is automatically set in accordance with the running conditions.
  • An automatic transmission fluid (ATF) is commonly used in these mechanisms inside this kind of automatic transmission.
  • ATF automatic transmission fluid
  • the automatic transmission fluid functions as a drive transmission fluid, a lubricating oil and a hydraulic oil.
  • the first objective of the present invention is to provide a lubricating oil composition for automatic transmissions which exhibits excellent anti-shudder property without any loss in transmission torque capacity.
  • the second objective of the present invention is to provide a method of lubricating an automatic transmission equipped with a continuously slipping torque converter clutch using a lubricating oil composition for an automatic transmission which has a high transmission torque capacity and exhibits excellent anti-shudder property.
  • the third objective of the present invention is to provide an automatic transmission filled with a lubricating oil composition having a high transmission torque capacity and exhibiting excellent anti-shudder property.
  • the inventors of the present invention conducted extensive research in order to achieve these objectives. They found as a result thereof that a lubricating oil composition obtained by incorporating a specific imide compound of the kind discussed below into a lubricating base oil sufficiently exhibited the kind of lubricating properties, transmission torque capacity and anti-shudder property required for lubricating oils for automatic transmissions, thereby achieving the specified objectives. It was on the basis of this finding that the present invention was completed.
  • the present invention relates to a lubricating oil composition for automatic transmissions obtainable by the addition to a lubricating base oil of an effective amount of a compound represented by the following general formula (1) (wherein, in general formula (I), R 1 and R 2 may be identical or different from each other, and are each hydrocarbon groups having 5 or more carbons; R 3 is a divalent hydrocarbon group having 1 to 5 carbons; R 4 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbons; and n is an integer in the range of 0 to 10).
  • R 1 and R 2 may be identical or different from each other, and are each hydrocarbon groups having 5 or more carbons;
  • R 3 is a divalent hydrocarbon group having 1 to 5 carbons;
  • R 4 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbons; and
  • n is an integer in the range of 0 to 10).
  • a lubricating oil composition for automatic transmissions obtainable by the addition to a lubricating base oil of:
  • a lubricating oil composition for automatic transmissions obtainable by the addition to a lubricating base oil of:
  • a method for lubricating an automatic transmission using a lubricating oil composition for automatic transmissions which comprises a compound represented by the above general formula (I).
  • an automatic transmission filled with a lubricating oil composition for automatic transmissions which comprises a compound represented by the above general formula (I).
  • the distinguishing feature of the present invention lies in the provision of a novel compound characterized in one sense in that the R 1 and R 2 groups of the imide compound represented by the above general formula (I) are straight chain hydrocarbon groups each having 5 or more carbons. It is focused on the finding that the anti-shudder property could be improved without reducing the transmission torque capacity of the lubricating oil for automatic transmissions, which are friction modifier effects which were not observed in the prior art.
  • base oil for the lubricating oil composition for an automatic transmission of the present invention there are no particular restrictions regarding the base oil for the lubricating oil composition for an automatic transmission of the present invention. Any oil generally used as a lubricating base oil can be employed. Mineral or synthetic oils etc. can be used.
  • Mineral oils which can be used include: solvent-refined raffinates prepared by taking a lubricating oil feedstock obtained by atmospheric or vacuum distillation of crude oil and treating it with an aromatic extracting solvent such as phenol, furfural, N-methyl pyrrolidone; hydrogenated oils obtained by contacting a lubricating oil feedstock with hydrogen in the presence of a hydrogenation catalyst and under hydrogenation conditions; isomerized oils obtained by contacting wax with hydrogen in the presence of an isomerization catalyst and under isomerization conditions; or mixtures of these.
  • Lubricating base oil blending stocks are normally produced by an arbitrary combination of steps such as solvent refining, hydrogenation, isomerization etc.. With any production method, a refining step such as dewaxing, hydrofinishing, activated clay treatment etc. can be arbitrarily employed.
  • Specific examples of mineral base oil blending stocks include light neutral oil, medium neutral oil, and heavy neutral oil brightstock etc..
  • Examples of synthetic base oils include poly-alpha-olefins, alpha-olefin oligomers, polybutenes, alkyl benzenes, polyolesters, dibasic acid esters, polyoxyalkylene glycols, polyoxyalkylene glycol esters or polyoxyalkylene glycol ethers, and silicone oils etc..
  • the desired lubricating base oil can be produced by appropriate mixing of one or two or more types, for example two or more types of mineral oils or a mineral oil and a synthetic oil such that the base oil blending stocks meets the necessary quality requirements for automatic transmission lubricating oils such as kinematic viscosity.
  • An oil having a kinematic viscosity at 100°C in the range of 2mm 2 /s to 20mm 2 /s, preferably 3mm 2 /s to 15mm 2 /s can be used as the lubricating base oil of the present invention. If the viscosity of the base oil is too high, its low temperature viscosity properties are reduced. On the other hand, if its viscosity is too low, there is the risk of increased wear of sliding parts such as the clutch and the gear wheel bearings of the automatic transmission.
  • the imide compound used in the lubricating oil composition for an automatic transmission of the present invention is a compound represented by the following general formula (I)
  • R 1 and R 2 may be the same as each other or different from each other, and are each saturated or unsaturated hydrocarbon groups having 5 or more carbons, preferably 5 to 40 carbons.
  • hydrocarbon groups include pentyl groups, hexyl groups, heptyl groups, octyl groups, nonyl groups, decyl groups, dodecyl groups, tridecyl groups, tetradecyl groups, pentadecyl groups, hexadecyl groups, heptadecyl groups, octadecyl groups, nonadecyl groups, oleyl groups and other hydrocarbon groups having up to 40 carbons.
  • Preferred hydrocarbon groups include straight chain hydrocarbon groups having between 8 and 25 carbons. Hydrocarbon groups having 4 or less carbons would lower the anti-shudder property with the risk of not being able to provide a lubricating oil composition having sufficient practical value as an automatic transmission lubricating oil.
  • R 3 is a divalent hydrocarbon group having 1 to 5 carbons, preferably an alkylene group having 2 or 3 carbons.
  • R 4 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbons.
  • hydrocarbon groups include alkyl groups having 1 to 20 carbons; alkenyl groups having 2 to 20 carbons; cycloalkyl groups having 6 to 20 carbons; and aryl groups having 6 to 20 carbons.
  • the aryl groups may have an alkyl group having 1 to 12 carbons.
  • Hydrogen atoms and alkyl groups having 1 to 10 carbons are particularly preferred as R 4 .
  • Groups having a number of (i.e. 1 to 5 of each) amino groups and/or amide bonds in their structure can be used as the above-described hydrocarbon groups.
  • the amino groups are represented by -NH- or -NH 2 ; and the amide bonds are represented by They may be bonded with the carbons of the hydrocarbon group at an arbitrary position.
  • n is an integer between 1 to 10, preferably 1 to 5.
  • R 1 and R 2 are each straight chain hydrocarbon groups having 8 to 25 carbons;
  • R 4 is a hydrogen atom or a hydrocarbon group having 1 to 10 carbons, wherein said hydrocarbon group may have an amino group and/or an amide bond; and
  • n is an integer between 1 and 5.
  • the imide compound of the present invention is added in an effective amount to the base oil of the lubricating oil composition for an automatic transmission.
  • the amount of imide compound which is effective will vary depending on the components and properties of the base oil, but 0.02% by weight to 4% by weight, preferably 0.03% by weight to 3% by weight (based on the total weight of the lubricating oil composition) can be used.
  • the above-described imide compound can be synthesized by reacting a hydrocarbon-substituted succinic acid anhydride with a polyamine.
  • polyamines preferred for this synthesis include monodiamines such as ethylene diamine, propylenediamine, butylenediamine, pentylenediamine etc.; and polyalkylenepolyamines such as diethylenetriamine, triethylenetetraamine, tetraethylenepentaamine etc.
  • an imide compound represented by the above general formula (I) as an essential component in the lubricating oil composition for an automatic transmission of the present invention gives it improved shudder vibration performance without any reduction in the transmission torque capacity when it is used as an automatic transmission fluid. In particular, it is remarkably effective at preventing shudder vibration in automatic transmissions fitted with a continuously slipping torque converter clutch. Furthermore, the anti-shudder property can be improved one step further by the addition of a metal salt of an organic acid and/or a phosphorous compound in combination with the imide compound.
  • metal salts of organic acids include sulfonates, phenates, salicylates and phosphonates etc.
  • the metal component of the metal salt of the organic acid is preferably an alkaline earth metal such as calcium, magnesium, barium etc.
  • organic acid metal salts which can be used include calcium sulfonates, phenates, salicylates and phosphonates; magnesium sulfonates, phenates, salicylates and phosphonates etc..
  • the sulfonates, phenates, salicylates and phosphonates include hydrocarbon groups. It is preferred that at least one of the hydrocarbon groups is one having a relatively long chain of 6 or more carbons.
  • groups which can be used include straight chain or branched alkyl groups having 6 to 18 carbons; straight chain or branched alkenyl groups having 6 to 18 carbons; cycloalkyl groups having 6 to 18 carbons; and aryl groups having 6 to 18 carbons.
  • the aryl groups may include alkyl groups of 1 to 12 carbons or alkenyl groups of 2 to 12 carbons as substituents.
  • alkyl groups having 6 to 18 carbons are preferred.
  • Alkyl groups having 8 to 12 carbons are particularly preferred from the point of view of improvement of the transmission torque capacity.
  • sulfonates include alkylbenzene sulfonates such as hexylbenzene sulfonate, hexadecyltoluene sulfonate, hexadecylxylene sulfonate, octadecylbenzene sulfonate, dodecylbenzene sulfonate etc..
  • Calcium and magnesium are the preferred metal components.
  • salicylates ones having alkyl groups having 10 to 14 carbons are particularly preferred.
  • a specific example is dodecyl salicylate.
  • Calcium and magnesium are suitable metal components.
  • Metal salts of alkylphenols or alkylphenol sulfides are the preferred phenates. Examples include calcium salts of dodecylphenol or alkylphenol sulfide.
  • the phosphonates are metal salts of thiophosphonic acid or phosphonic acid obtainable by the reaction of a polyolefin and phosphorous pentasulfide; calcium and magnesium are used as the metal component.
  • These organic acid metal salts are preferably ones having a total base value in the range of 10mgKOH/g to 400mgKOH/g.
  • metal salts of organic acids such as sulfonates, phenates, salicylates and phosphonates in an amount in the range of 0.02% by weight to 5% by weight, preferably 0.1% by weight to 2% by weight based on the total weight of the lubricating oil composition.
  • These metal salts of organic acids may be ones produced by conventional methods. It is also possible to select and use commercial products.
  • Examples of phosphorous compounds include phosphate esters, acid phosphate esters, phosphite esters, acid phosphite esters and zinc thiophosphates.
  • Compounds represented by the general formulas (III), (IV) and (V) can be used.
  • R 5 is a hydrocarbon group or a sulfur atom-containing hydrocarbon group having 1 to 30 carbons, and may be the same or different in each of the general formulae.
  • x is 1, 2 or 3;
  • y is 1 or 2.
  • Preferred hydrocarbon groups are alkyl groups having 1 to 30 carbons; alkenyl groups having 2 to 30 carbons; cycloalkyl groups having 6 to 30 carbons; aryl groups, alkyl aryl groups and aryl alkyl groups having 6 to 30 carbons.
  • Particularly suitable hydrocarbon groups are straight chain or branched alkyl groups having 3 to 24 carbons.
  • phosphate esters include triaryl phosphates such as benzyldiphenyl phosphate, aryldiphenyl phosphate, triphenyl phosphate, tricresyl phosphate, ethyldiphenyl phosphate, tributyl phosphate, dibutyl phosphate, cresyl diphenyl phosphate, dicresylphenyl phosphate, ethylphenyldiphenyl phosphate, diethylphenylphenyl phosphate, propylphenyldiphenyl phosphate, dipropylphenyl phenyl phosphate, triethylphenyl phosphate, tripropylphenyl phosphate, butylphenyldiphenyl phosphate, dibutylphenylphenyl phosphate, tributylphenyl phosphate, propylphenylphenyl phosphate mixtures and butylphens
  • acid phosphite esters include monobutyl phosphate, monohexyl phosphate, monooctyl phosphate, monolauryl phosphate, monophenyl phosphate, dibutyl phosphate, dioctyl phosphate, di(2-ethylhexyl) phosphate, didecyl phosphate, dilauryl phosphate, dioleyl phosphate, distearyl phosphate and diphenyl phosphate etc.
  • monoalkyl or dialkyl phosphates having alkyl groups of 3 to 10 carbons or mixtures thereof are preferred.
  • phosphite esters include triphenyl phosphite, tri(p-cresyl) phosphite, tris(nonylphenyl) phosphite, trioctyl trithiophosphite, triisooctyl phosphite, diphenyl isodecyl phosphite, phenyl isodecyl phosphite, triisodecyl phosphite, tristearyl phosphite and trioleyl phosphite etc..
  • acid phosphite esters examples include di-2-ethylhexyl hydrogen phosphite, dilauryl hydrogen phosphite, and dioleyl hydrogen phosphite etc..
  • An example of a sulfur atom-containing hydrocarbon group is dodecyl thioethyl group etc..
  • the above phosphorous compound is added to the lubricating base oil in an amount of 0.01% by weight to 5% by weight, preferably 0.03% by weight to 3 % by weight based on the total weight of the lubricating oil composition. Amounts in the range of 0.05% by weight to 1% by weight are particularly preferred.
  • the above phosphorous compound may be one obtained by conventional production methods. Alternatively, a commercially available product may be selected and used.
  • additives can be appropriately added to the lubricating oil composition for the automatic transmission of the present invention.
  • examples include other friction modifiers, anti-wear additives, viscosity index improvers, ashless dispersants, antioxidants, extreme pressure agents, metal deactivators, pour point depressants, defoamants and corrosion inhibitors.
  • viscosity index improvers examples include polymethacrylates, polyisobutylenes, ethylene-propylene copolymers and the product of hydrolytic copolymerization of styrene and butadiene etc.. These are used in an amount of 3% by weight to 35% by weight.
  • ashless dispersants examples include polybutenyl succinic acid imides, polybutenyl succinic acid imides, benzylamines, succinic acid esters etc.. These are used in an amount of 0.05% by weight to 7% by weight.
  • antioxidants examples include amine-type antioxidants such as alkylated diphenylamines and phenyl-alpha-naphthyl amines etc.; phenol-type antioxidants such as 2,6-ditertiarybutyl phenol and 4,4'-methylenebis(2,6-ditertiarybutyl phenol) etc.; and zinc dithiophosphate etc.. These are used in an amount of 0.05% by weight to 5% by weight.
  • extreme pressure additives include dibenzyl sulphide and dibutyl disulfide etc. These are used in an amount of 0.05% by weight to 3 % by weight.
  • metal deactivators examples include benzotriazole and thiadiazole etc.. These are used in an amount of 0.01% by weight to 3% by weight.
  • pour point depressants examples include ethylene-vinyl acetate copolymers, condensates of chlorinated paraffin and naphthalene, condensates of chlorinated paraffin and phenol, polymethacrylate and polyalkylstyrene etc.. These are used in an amount of 0.1% by weight to 10% by weight.
  • Other additives such as anticorrosion inhibitors and defoamants can be used to the extent that they do not deter from the objective of the present invention.
  • a lubricating oil composition for an automatic transmission obtained by the addition to a solvent-refined paraffinic mineral oil having a kinematic viscosity at 100°C of 4mm 2 /s as the lubricating base oil of: imide compound (compound A) 0.5 - 2 wt.%; metal salt of organic acid (calcium sulfonate) 0.1 - 0.5 wt.
  • phosphorous compound (trialkyl phosphate) 0.1 - 0.5 wt.%; polymethacrylate 2 - 10 wt.%; polybutenyl succinic imide 2 - 5 wt.%; 2,6-di-t-butyl-4-methyl phenol 0.2 - 1wt.%; and benzotriazole 0.02 - 0.1 wt.% based on the total weight of the lubricating oil composition.
  • Anti-shudder property and transmission torque capacity were evaluated according to the following methods.
  • a LVFA Low Velocity Friction Apparatus
  • the ⁇ H and ⁇ L were measured under the following test conditions, and the ⁇ H / ⁇ L , ratio was calculated therefrom.
  • the ⁇ H / ⁇ L ratio was adopted as a anti-shudder property index and used as the basis for evaluating the shudder vibration prevention effect. If the ⁇ H / ⁇ L ratio (anti-shudder property index) is greater than 1, no shudders are generated in an actual automatic transmission.
  • a SAE No. 2 Friction Test Apparatus was used as the test apparatus.
  • a dynamic test and a static test were carried out under the following conditions.
  • the friction material was rotated under no load at a speed of 3600rpm and an inertial weight of 3.5kgf.cm.s 2 . Pressure was applied by sandwiching the friction material between steel plates to stop the rotation.
  • the transmission torque capacity was evaluated using the static friction coefficient, ⁇ s in a SAE No. 2 test 100c/c.
  • the transmission torque capacity was evaluated to be higher the greater the ⁇ s exceeded 0.100.
  • composition of the imide compounds of the present invention (Compounds A-H) and the imide compounds used in the Comparative Examples (Compounds I-J) are compiled in Table 1.
  • the composition of the lubricating base oils and additives used in Examples and Comparative Examples, and the performance evaluation of the lubricating oil compositions are compiled in Tables 2 to 4.
  • a solvent-refined paraffinic mineral oil (kinematic viscosity at 100°C: 4mm 2 /s) was used as the lubricating base oil.
  • a lubricating oil composition containing 1.0% by weight of an imide compound (compound A), 0.3% by weight of calcium sulfonate (total base value: 300mgKOH/g), 0.2% by weight of tributyl phosphate, 5.0% by weight of polymethacrylate (viscosity index improver), 4.0% by weight of polyisobutenyl succinic imide (ashless dispersant), 0.4% by weight of 2,6-di-t-butyl-4-methylphenol (antioxidant) and 0.05% by weight of benzotriazole (metal deactivator) was prepared.
  • Compound A used here is, as is shown in Table 1, a imide compound in which R 1 and R 2 are each straight chain alkyl groups having 12 carbons, R 3 is an alkylene group having 2 carbons, R 4 is a hydrogen atom and n is 2.
  • the anti-shudder property and transmission torque capacity of the lubricating oil composition were measured with the following results.
  • a lubricating oil composition was prepared in the same way as Example 1 except that an alpha-olefin copolymeric synthetic oil (Kinematic viscosity at 100°C: 4mm 2 /s [SHF41 provided by Mobil Sekiyu Kabushiki Kaisha]) was used instead as the lubricating base oil instead of the solvent-refined paraffinic mineral oil.
  • the anti-shudder property index and transmission torque capacity were measured, and the results thereof are shown in Table 1. Substantially the same results as with the mineral base oil were achieved.
  • Lubricating oil compositions were prepared by the addition to the base oils shown in Table 1 of compound A and various additives in the amounts also shown in Table 1.
  • tributyl phosphate Example 3
  • tricresyl phosphate Example 4
  • trioctyl trithiophosphite Example 5
  • a mixture (1:1) of monooctyl phosphate and dioctyl phosphate Example 6) were used as the phosphorous compound.
  • the anti-shudder property and the transmission torque capacity were determined for each lubricating oil composition prepared and the results are shown in Table 1.
  • a lubricating oil composition was prepared in the same way as in Example 1 except that compound B shown in Table 1 was used instead of compound A as the imide compound.
  • Compound B is an imide compound in which R 1 and R 2 are each straight chain alkyl groups having 12 carbons, R 3 is an ethylene group, R 4 is an alkyl group having 6 carbons, and which is bonded to 2-NH- groups and 1 -NH 2 groups. n is 2.
  • the performance of the lubricating oil composition was evaluated and the results thereof are shown in Table 3.
  • the anti-shudder property index ( ⁇ H / ⁇ L ratio in LVFA) was 1.07 and the transmission torque capacity (Static friction coefficient ⁇ s in SAE No. 2 test 100c/c) was 0.146. Extremely excellent results were thus obtained.
  • a lubricating oil composition was prepared according to the same conditions and operations as in Example 1 except that compound C was used instead of compound A as the imide compound.
  • compound C is an imide compound in which R 1 and R 2 are each straight chain alkyl groups having 18 carbons, R 3 is an ethylene group, R 4 is a hydrogen atom and n is 2.
  • the results of the measurement of the anti-shudder property index ( ⁇ H / ⁇ L ratio) and the transmission torque capacity ( ⁇ s) of the lubricating oil composition are shown in Table 3.
  • Lubricating oil compositions were prepared in the same way as Example 1 except that compound D (Example 12), Compound E (Example 13) and Compound F (Example 14) were respectively used as the imide compound instead of compound A.
  • Compound D is an imide compound in which R 1 and R 2 are each straight chain alkyl groups having 18 carbons, R 3 is an ethylene group, R 4 is an alkyl group having 8 carbons and including 2 amide bonds and one amino group (-NH-), and n is 2.
  • Compound E is an imide compound in which R 1 and R 2 are each straight chain alkyl groups having 24 carbons, R 3 is an ethylene group, R 4 is a hydrogen atom and n is 2.
  • Compound F is an imide compound in which R 1 and R 2 are each straight chain alkyl groups having 8 carbons, R 3 is an ethylene group, R 4 is a hydrogen atom and n is 2.
  • Lubricating oil compositions were prepared in the same way as Example 1 except that compound G (Example 15) and Compound H (Example 16) were respectively used as the imide compound instead of compound A.
  • Compounds G and H are imide compounds in which R 1 and R 2 each include straight chain unsaturated alkyl groups.
  • the results of the evaluation are shown in Table 3.
  • Lubricating oil compositions were prepared using compound G as the imide compound and using acid phosphate esters and acid phosphite esters in the amounts shown in Table 3 instead of a phosphate ester.
  • the compositions and results of the performance evaluation are shown in Table 3.
  • Lubricating oil compositions were prepared by mixing the base oils and additives shown in Table 4 in the proportions shown in the same table.
  • the anti-shudder property index ⁇ H / ⁇ L ratio and the transmission torque capacity were determined for each composition and the results are shown in Table 4.
  • Compound I used in Comparative Example 12 is an imide compound in which R 1 and R 2 are each n-butyl groups having 4 carbons, R 3 is an ethylene group, R 4 is a hydrogen atom and n is 2.
  • Compound J used in Comparative Example 14 is an imide compound having a hydrocarbon group which is not a straight chain saturated hydrocarbon group; R 1 is a straight chain alkyl group having 12 carbons whereas R 2 is a cyclic hydrocarbon group.
  • Comparative Example 12 Compound I is used as an imide compound, but R 1 and R 2 thereof are each n-butyl groups having 4 carbons, and thus differ from the hydrocarbon groups of the present invention which have 5 or more carbons.
  • Comparative Example 13 6% by weight of polyisobutenyl succinic imide (bis-type), which is 2% by weight more than in the other Examples and Comparative Examples, was added as an ashless dispersant.
  • the polyisobutenyl group of the polyisobutenyl succinic imide used here is different from the non-branched straight chain hydrocarbon groups having 5 or more carbons used in the present invention, with the result that no improvement in the anti-shudder property was observed.
  • Compound J has a cyclic compound as R 2 , and this shows that anti-shudder property cannot be achieved whilst maintaining transmission torque capacity if both R 1 and R 2 are not straight chain hydrocarbon groups.
  • the R 1 and R 2 of Compounds A to H are straight chain alkyl groups having 8 or more carbons, and lubricating oil compositions made using these are remarkably effective with respect to anti-shudder property without any loss in transmission torque capacity.
  • the lubricating oil composition for an automatic transmission of the present invention is obtained by incorporating the above imide compound in a lubricating base oil. It is thereby possible to improve the slope of the ⁇ -V curve, which is an index of the anti-shudder property in an automatic transmission fitted with a continuously slipping torque converter clutch.
  • the lubricating oil composition thus exhibits excellent anti-shudder property without any loss in transmission torque capacity even when the lock-up mechanism is operated at low speeds, making it extremely useful as a drive transmission fluid.
  • a method for lubricating an automatic transmission fitted with a continuously slipping torque converter clutch using said automatic transmission lubricating oil composition containing an imide compound can be provided. Furthermore, according to the present invention, an automatic transmission equipped with a lock-up clutch and filled with a lubricating oil composition having high transmission torque capacity and excellent anti-shudder property can be provided.
EP97927369A 1996-10-22 1997-06-11 Schmierölzusammensetzung für automatisches getriebe Withdrawn EP0889112A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8298082A JPH09202890A (ja) 1995-11-21 1996-10-22 自動変速機用潤滑油組成物
JP298082/96 1996-10-22
PCT/JP1997/002025 WO1998017747A1 (fr) 1996-10-22 1997-06-11 Composition d'huile lubrifiante pour transmissions automatiques

Publications (1)

Publication Number Publication Date
EP0889112A1 true EP0889112A1 (de) 1999-01-07

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WO (1) WO1998017747A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1344814A1 (de) * 2002-03-15 2003-09-17 Infineum International Limited Kraftübertragungsflüssigkeiten mit verbesserten schwingugsdämpfenden Eigenschaften
EP1439217A1 (de) * 2001-10-12 2004-07-21 Nippon Oil Corporation Schmierölzusammensetzung für brennkraftmotor
EP1705235A1 (de) * 2005-03-23 2006-09-27 Afton Chemical Corporation Schmiermittelzusammensetzungen
WO2007084207A1 (en) * 2006-01-17 2007-07-26 Exxonmobil Chemical Patents Inc. Additive system for lubricating fluids
EP1847585A3 (de) * 2006-04-17 2008-11-26 Nippon Oil Corporation Schmiermittelzusammensetzung für Automatikgetriebe
US7491849B2 (en) 2001-10-16 2009-02-17 Progen Pharmaceuticals, Inc. Oligoamine compounds and derivatives thereof for cancer therapy
WO2018211466A1 (en) 2017-05-19 2018-11-22 Chevron Oronite Company Llc Dispersants, method of making, and using same
CN110740992A (zh) * 2017-06-30 2020-01-31 出光兴产株式会社 摩擦调节剂和润滑油组合物
WO2020260650A1 (fr) * 2019-06-28 2020-12-30 Total Marketing Services Composition lubrifiante pour prévenir la corrosion et/ou la tribocorrosion des pièces métalliques dans un moteur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68912307T2 (de) * 1988-10-24 1994-05-05 Exxon Chemical Patents Inc Amid enthaltende reibungsmodifizierungsmittel zur verwendung bei leistungstransmissionsfluiden.
JPH06271883A (ja) * 1993-03-19 1994-09-27 Honda Motor Co Ltd 潤滑油用摩擦力向上剤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9817747A1 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1439217A1 (de) * 2001-10-12 2004-07-21 Nippon Oil Corporation Schmierölzusammensetzung für brennkraftmotor
EP1439217A4 (de) * 2001-10-12 2009-09-02 Nippon Oil Corp Schmierölzusammensetzung für brennkraftmotor
US7491849B2 (en) 2001-10-16 2009-02-17 Progen Pharmaceuticals, Inc. Oligoamine compounds and derivatives thereof for cancer therapy
EP1344814A1 (de) * 2002-03-15 2003-09-17 Infineum International Limited Kraftübertragungsflüssigkeiten mit verbesserten schwingugsdämpfenden Eigenschaften
EP1705235A1 (de) * 2005-03-23 2006-09-27 Afton Chemical Corporation Schmiermittelzusammensetzungen
US8557752B2 (en) 2005-03-23 2013-10-15 Afton Chemical Corporation Lubricating compositions
WO2007084207A1 (en) * 2006-01-17 2007-07-26 Exxonmobil Chemical Patents Inc. Additive system for lubricating fluids
EP1847585A3 (de) * 2006-04-17 2008-11-26 Nippon Oil Corporation Schmiermittelzusammensetzung für Automatikgetriebe
WO2018211466A1 (en) 2017-05-19 2018-11-22 Chevron Oronite Company Llc Dispersants, method of making, and using same
US10815446B2 (en) 2017-05-19 2020-10-27 Chevron Oronite Company Llc Dispersants, method of making, and using same
CN110740992A (zh) * 2017-06-30 2020-01-31 出光兴产株式会社 摩擦调节剂和润滑油组合物
EP3647307A4 (de) * 2017-06-30 2021-06-02 Idemitsu Kosan Co., Ltd. Reibungseinstellungsmittel und schmierölzusammensetzung
US11332687B2 (en) 2017-06-30 2022-05-17 Idemitsu Kosan Co..Ltd. Friction adjusting agent and lubricating oil composition
CN110740992B (zh) * 2017-06-30 2024-01-16 出光兴产株式会社 摩擦调节剂和润滑油组合物
WO2020260650A1 (fr) * 2019-06-28 2020-12-30 Total Marketing Services Composition lubrifiante pour prévenir la corrosion et/ou la tribocorrosion des pièces métalliques dans un moteur
FR3097875A1 (fr) * 2019-06-28 2021-01-01 Total Marketing Services Composition lubrifiante pour prévenir la corrosion et/ou la tribocorrosion des pièces métalliques dans un moteur

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