WO2011007643A1 - Composition d'huile pour moteurs économe en combustible - Google Patents

Composition d'huile pour moteurs économe en combustible Download PDF

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Publication number
WO2011007643A1
WO2011007643A1 PCT/JP2010/060504 JP2010060504W WO2011007643A1 WO 2011007643 A1 WO2011007643 A1 WO 2011007643A1 JP 2010060504 W JP2010060504 W JP 2010060504W WO 2011007643 A1 WO2011007643 A1 WO 2011007643A1
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WO
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Prior art keywords
fuel
zndtp
engine oil
mass
oil composition
Prior art date
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Ceased
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PCT/JP2010/060504
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English (en)
Japanese (ja)
Inventor
悟 吉田
正希 丸山
康司 内藤
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Eneos Corp
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Japan Energy Corp
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Priority to JP2011522767A priority Critical patent/JP5600677B2/ja
Publication of WO2011007643A1 publication Critical patent/WO2011007643A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate 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
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/54—Fuel economy
    • 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
    • C10N2040/25—Internal-combustion engines

Definitions

  • the present invention relates to a lubricating oil for an internal combustion engine containing a specific diol compound, and relates to a fuel-saving engine oil composition having excellent low friction characteristics and good wear resistance.
  • Patent Document 1 As a method of improving fuel economy performance in engine oil, low viscosity oil for the purpose of reducing friction under fluid lubrication conditions, and addition of friction modifiers for the purpose of friction reduction under mixed lubrication and boundary lubrication conditions (Patent Document 1). Recently, with higher engine output and higher performance, lubrication conditions have become increasingly severe, and the addition of friction modifiers has become increasingly important.
  • an object of the present invention is to provide a fuel-saving engine oil composition that is excellent in low friction characteristics and that is suitable for use in an internal combustion engine, in particular, has good wear resistance.
  • the present inventor has formulated a specific diol compound in a lubricating base oil and combined a certain amount of zinc dialkyldithiophosphate (ZnDTP) with a specific amount. It has been found that the lubricating oil composition obtained by blending at a ratio is excellent in low friction properties and good in wear resistance, and is useful as an engine oil.
  • the present invention has been made based on such findings.
  • a diol compound represented by the following general formula (1) and zinc dialkyldithiophosphate (ZnDTP) as phosphorus (P) are added to a lubricating base oil.
  • ZnDTP zinc dialkyldithiophosphate
  • P phosphorus
  • R represents hydrogen, an alkyl group or an alkenyl group.
  • the lubricating base oil used in the fuel-saving engine oil composition of the present invention preferably has a kinematic viscosity at 100 ° C. of 4.5 mm 2 / s or less and a viscosity index of 120 or more.
  • the molecular weight of the diol compound represented by the general formula (1) used in the fuel-saving engine oil composition of the present invention is preferably 400 to 600.
  • the fuel-saving engine oil composition of the present invention has an excellent effect that it has excellent wear prevention properties and can significantly reduce the friction coefficient between metals. In other words, the fuel efficiency is improved by significantly reducing the friction coefficient between metals of the engine sliding portion.
  • any of mineral oil, synthetic oil, and mixtures thereof can be used.
  • a high viscosity index lubricating base oil having a viscosity index of 120 or more is desirable.
  • a high viscosity index lubricating base oil having a viscosity index of 120 or more can be obtained by solvent dewaxing or hydrodewaxing a product oil obtained by hydroisomerization of wax or hydrocracking of heavy oil. .
  • solvent dewaxing or hydrodewaxing a product oil obtained by hydroisomerization of wax or hydrocracking of heavy oil.
  • wax having a boiling range of 300 to 600 ° C. and a carbon number of 20 to 70 such as slack wax and hydrocarbon gas obtained in the solvent dewaxing process of mineral oil-based lubricating oil, is used.
  • a hydroisomerization catalyst such as a group 8 metal such as nickel or cobalt on an alumina or silica-alumina carrier and A catalyst carrying one or more of Group 6A metals such as molybdenum and tungsten, a catalyst carrying platinum or the like on a zeolite catalyst or a zeolite-containing carrier, and 300 to 450 ° C. in the presence of hydrogen at a hydrogen partial pressure of 5 to 14 MPa. It can be carried out by contacting at a temperature of LHSV (liquid space velocity) of 0.1 to 2 hr ⁇ 1 . At this time, it is preferable that the conversion rate of the linear paraffin is 80% or more and the conversion rate to the light fraction is 40% or less.
  • LHSV liquid space velocity
  • the lubricating base oil having a high viscosity index used in the present invention through hydrocracking of heavy oil can be obtained as follows. If necessary, hydrodesulfurization and denitrogenation, normal pressure distillate, vacuum distillate or bright stock having a boiling point in the range of 300 to 600 ° C., nickel, cobalt on hydrocracking catalyst such as silica-alumina support A catalyst carrying one or more group 8 metals such as molybdenum and tungsten, and a catalyst having a hydrogen partial pressure of 7 to 14 MPa, a temperature of 350 to 450 ° C., 0.1 to It can be carried out by contact at 2 hr ⁇ 1 LHSV (liquid space velocity), and the decomposition rate (decreasing mass% of the fraction of the product of 360 ° C. or higher in the product) should be 40 to 90%. preferable.
  • Lubricating oil fraction can be obtained by distilling off the light fraction from the hydroisomerized product oil or hydrocracked product oil obtained by the above method, but this fraction generally has a high pour point and viscosity. and the viscosity index is not high enough, perform dewaxing treatment, by removing the wax fraction, n-d-M ring analysis% C P is 80 or more, a viscosity index in pour point of -10 ° C. or less Can obtain a lubricating base oil of 120 or more.
  • the light fraction is distilled off using a precision distillation apparatus, and the fraction having a boiling point of 371 ° C. or higher and lower than 491 ° C. by gas chromatography distillation is previously used. Is preferably 70% by mass or more in order to perform the solvent dewaxing process more efficiently.
  • methyl ethyl ketone / toluene volume ratio 1/1
  • the solvent / oil ratio is in the range of 2/1 to 4/1 at a temperature of ⁇ 15 to ⁇ 40 ° C. It is good to do.
  • distilling the light fractions should not hinder hydrodewaxing, and after hydrodewaxing, they are separated by distillation using a precision distillation apparatus. It is efficient and preferable that the fraction having a boiling point of 371 ° C. or higher and lower than 491 ° C. is 70% by mass or higher by gas chromatography distillation.
  • This hydrodewaxing is performed by contacting the zeolite catalyst with LHSV (liquid space velocity) of 0.2 to 4 hr ⁇ 1 at a temperature of 320 to 430 ° C. in the presence of hydrogen at a hydrogen partial pressure of 3 to 15 MPa.
  • LHSV liquid space velocity
  • the pour point in the lubricating base oil should be ⁇ 10 ° C. or lower.
  • a lubricating base oil having a viscosity index of 120 or more can be obtained by the method as described above, but further solvent purification or hydrogenation purification can be performed as desired.
  • Synthetic oils include ⁇ -olefin oligomers, diesters synthesized from dibasic acids such as adipic acid and monohydric alcohols, polyhydric alcohols such as neopentyl glycol, trimethylolpropane, pentaerythritol, and monobasic acids. Polyol esters synthesized from the above, and mixtures thereof.
  • the lubricating base oil used in the fuel-saving engine oil composition of the present invention has a kinematic viscosity at 100 ° C. of 4.5 mm 2 / s or less and a viscosity index of 120.
  • the kinematic viscosity at 100 ° C. is 3.0 to 4.5 mm 2 / s and the viscosity index is 120 to 170.
  • a diol compound represented by the following general formula (1) is used.
  • R represents hydrogen, an alkyl group, or an alkenyl group.
  • a mixture of compounds having different alkyl groups or alkenyl groups for R may also be used.
  • the alkyl group or alkenyl group may be either straight chain or branched, and preferably has 26 to 34 carbon atoms.
  • the molecular weight of the diol compound is preferably 400 to 600. When the molecular weight of the diol compound is less than 400, a sufficient friction reducing effect cannot be obtained, and when the molecular weight is more than 600, storage stability at low temperatures cannot be maintained.
  • diol compound examples include nonaicosyl-1,2-diol, hentrianchotyl-1,2-diol, tritriancotyl-1,2-diol, and the like. it can.
  • the amount of the diol compound added is 0.1 to 2.0% by mass, preferably 0.2 to 1.0% by mass.
  • Examples of the zinc dialkyldithiophosphate (ZnDTP) used in the fuel-saving engine oil composition of the present invention include compounds represented by the following general formula (2).
  • R 1 , R 2 , R 3 and R 4 each independently represent a hydrocarbon group having 1 to 24 carbon atoms.
  • These hydrocarbon groups include a linear or branched alkyl group having 1 to 24 carbon atoms, a linear or branched alkenyl group having 3 to 24 carbon atoms, or a linear or branched alkylcyclo group.
  • the alkyl group or alkenyl group may be any of primary, secondary, and tertiary.
  • ZnDTP having a secondary alkyl group is ZnDTP in which R 1 , R 2 , R 3 and R 4 are all secondary alkyl groups.
  • the content of ZnDTP is 0.03 to 0.12% by mass, preferably 0.05 to 0.08% by mass as the phosphorus (P) element contained in ZnDTP, based on the total mass of the engine oil composition.
  • the phosphorus content of the ZnDTP having a secondary alkyl group accounts for 30 mass% or more, preferably 50 mass% or more of the total phosphorus content derived from ZnDTP.
  • the phosphorus content of ZnDTP having a secondary alkyl group in ZnDTP is less than 30% by mass of the phosphorus content derived from all ZnDTP, it is not possible to achieve both fuel saving and wear prevention by the diol compound.
  • molybdenum dithiocarbamate MoDTC
  • metal sulfonates such as Ca, Mg, Ba, Na
  • detergents such as phenate and salicylate
  • ashless dispersants such as alkenyl succinimide
  • Additives such as phenol-based and amine-based antioxidants, other viscosity index improvers, pour point depressants, metal deactivators, rust inhibitors and antifoaming agents can be added.
  • hydrodewaxed oil obtained by hydrodewaxing hydrocracked oil obtained by hydrocracking heavy oil (kinematic viscosity: 17.9 mm 2 / s (40 ° C.), 4. 08 mm 2 / s (100 ° C.), viscosity index 131) was used.
  • a friction modifier, ZnDTP, a viscosity index improver and other additives described below as additives are blended in the base oil in the proportions shown in Table 1 to prepare the engine oils of Example 1 and Comparative Examples 1 to 4. did.
  • Table 1 shows the phosphorus content of ZnDTP having secondary alkyl groups in the phosphorus content derived from the added ZnDTP and the calcium (Ca) content and phosphorus (P) content in the prepared engine oil.
  • the other additive is an additive mixture composed of Ca sulfonate, Ca salicylate, alkenyl succinimide, pour point depressant and antifoaming agent.
  • the compositions were added so that the TBS viscosity at 150 ° C.
  • the TBS viscosity is a viscosity measured using a Tapered Bearing Simulator, and is a high temperature high shear viscosity used for evaluation of engine oil.
  • ASTM D4683 the rotor torque generated by the viscosity resistance of the engine oil at a temperature of 150 ° C. and a shear rate of 1 ⁇ 10 6 s ⁇ 1 is measured, and calculated by a calibration curve obtained from the standard oil.
  • Example 1 and Comparative Example 1 include 1,2-diol, in which R is a mixture of nonaicosyl group, hentriancotyl group, and tritriancotyl group as a diol compound represented by the general formula (1).
  • GMO glycerol monooleate
  • MoDTC molybdenum dithiophosphate
  • a motor test using a 1.5 L in-line four-cylinder engine was carried out for each of the engine oils in the examples and comparative examples in Table 1, and the shaft torque at an oil temperature of 110 ° C. and a shaft rotation speed of 1000 rpm was measured.
  • Table 2 shows the torque reduction rate relative to the reference oil.
  • Example 1 and Comparative Examples 1 and 2 were subjected to a KA24E valve train wear test in accordance with JASO M328 to measure the amount of cam nose wear. The results are shown in the lower part of Table 2.
  • the engine oil containing 0.5% by mass of the diol compound shown in Example 1 and Comparative Example 1 is better in the motoring test than Comparative Example 2 containing no diol compound. Excellent low-friction characteristics and high fuel efficiency.
  • Comparative Example 1 containing only ZnDTP having a primary alkyl group as ZnDTP the wear of the valve system was significantly increased as compared with Comparative Example 2 by containing 0.5% by mass of the diol compound.
  • Example 1 in which the phosphorus content of the secondary alkyl group-containing ZnDTP accounts for 60% of the phosphorus content in ZnDTP, a significant improvement in the amount of wear was observed, showing good valve system wear, reducing friction It is expected to maintain the efficacy for a long time.
  • the present invention has excellent wear prevention characteristics and can significantly reduce the coefficient of friction between metals of the engine sliding portion, so that it has excellent fuel economy, and is suitable for internal combustion engines such as gasoline engines, diesel engines, and gas engines. It can be used as engine oil.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

L'invention porte sur une composition d'huile pour moteurs économe en combustible qui a un excellent rendement du combustible et une bonne résistance à l'abrasion. Ladite composition d'huile pour moteurs économe en combustible est caractérisée par le fait qu'elle contient, dans une huile de base lubrifiante : un composé diol représenté par la formule générale (1), dans la quantité de 0,1-2,0 % en masse ; et du phosphore sous la forme de dithiophosphate de zinc (ZnDTP), dans la quantité de 0,03-0,12 % en masse. La composition d'huile pour moteurs économe en combustible est encore caractérisée par le fait que la teneur en phosphore de ZnDTP qui a des groupes alkyle secondaires constitue au moins 50 % en masse de la teneur en phosphore provenant de ZnDTP (1) (Dans la formule, R représente hydrogène, un groupe alkyle ou un groupe alcényle).
PCT/JP2010/060504 2009-07-14 2010-06-22 Composition d'huile pour moteurs économe en combustible Ceased WO2011007643A1 (fr)

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JP2011522767A JP5600677B2 (ja) 2009-07-14 2010-06-22 省燃費型エンジン油組成物

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JP2009165883 2009-07-14

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015093410A1 (fr) 2013-12-16 2015-06-25 富士フイルム株式会社 Composition d'huile lubrifiante pour moteurs à combustion interne de véhicules à quatre roues de tourisme ou utilitaires
EP2933320A1 (fr) * 2014-04-17 2015-10-21 Afton Chemical Corporation Additifs de lubrifiants et compositions lubrifiantes possédant des caractéristiques de frottement améliorées
US9982214B2 (en) 2014-02-14 2018-05-29 Chevron Oronite Company Llc Tractor hydraulic fluid compositions
JP2018135409A (ja) * 2017-02-20 2018-08-30 日野自動車株式会社 潤滑油用摩擦調整剤および潤滑油組成物
US10669507B2 (en) 2013-09-23 2020-06-02 Chevron Japan Ltd. Fuel economy engine oil composition

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JPS57100193A (en) * 1980-11-24 1982-06-22 Chevron Res Lubricating oil for improving fuel cost in internal combustion engine and method thereof
JPH09104888A (ja) * 1995-10-11 1997-04-22 Tonen Corp 潤滑油組成物
JP2000017283A (ja) * 1998-07-03 2000-01-18 Asahi Denka Kogyo Kk 潤滑油添加剤及び潤滑油組成物
JP2000273481A (ja) * 1999-03-23 2000-10-03 New Japan Chem Co Ltd 潤滑油組成物
JP2008106199A (ja) * 2006-10-27 2008-05-08 Idemitsu Kosan Co Ltd 潤滑油組成物
JP2008248213A (ja) * 2007-03-30 2008-10-16 Nippon Oil Corp 銀含有材料と接触する潤滑油組成物

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Publication number Priority date Publication date Assignee Title
JPS57100193A (en) * 1980-11-24 1982-06-22 Chevron Res Lubricating oil for improving fuel cost in internal combustion engine and method thereof
JPH09104888A (ja) * 1995-10-11 1997-04-22 Tonen Corp 潤滑油組成物
JP2000017283A (ja) * 1998-07-03 2000-01-18 Asahi Denka Kogyo Kk 潤滑油添加剤及び潤滑油組成物
JP2000273481A (ja) * 1999-03-23 2000-10-03 New Japan Chem Co Ltd 潤滑油組成物
JP2008106199A (ja) * 2006-10-27 2008-05-08 Idemitsu Kosan Co Ltd 潤滑油組成物
JP2008248213A (ja) * 2007-03-30 2008-10-16 Nippon Oil Corp 銀含有材料と接触する潤滑油組成物

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10669507B2 (en) 2013-09-23 2020-06-02 Chevron Japan Ltd. Fuel economy engine oil composition
WO2015093410A1 (fr) 2013-12-16 2015-06-25 富士フイルム株式会社 Composition d'huile lubrifiante pour moteurs à combustion interne de véhicules à quatre roues de tourisme ou utilitaires
US9834736B2 (en) 2013-12-16 2017-12-05 Fujifilm Corporation Lubricating oil composition for internal combustion engines of passenger and commercial four-wheeled vehicles
US9982214B2 (en) 2014-02-14 2018-05-29 Chevron Oronite Company Llc Tractor hydraulic fluid compositions
EP2933320A1 (fr) * 2014-04-17 2015-10-21 Afton Chemical Corporation Additifs de lubrifiants et compositions lubrifiantes possédant des caractéristiques de frottement améliorées
JP2015206028A (ja) * 2014-04-17 2015-11-19 アフトン・ケミカル・コーポレーションＡｆｔｏｎ Ｃｈｅｍｉｃａｌ Ｃｏｒｐｏｒａｔｉｏｎ 潤滑添加剤および改良された摩擦特性を有する潤滑組成物
US9657252B2 (en) 2014-04-17 2017-05-23 Afton Chemical Corporation Lubricant additives and lubricant compositions having improved frictional characteristics
JP2018135409A (ja) * 2017-02-20 2018-08-30 日野自動車株式会社 潤滑油用摩擦調整剤および潤滑油組成物

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