WO2018043495A1 - Composition lubrifiante - Google Patents

Composition lubrifiante Download PDF

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Publication number
WO2018043495A1
WO2018043495A1 PCT/JP2017/030966 JP2017030966W WO2018043495A1 WO 2018043495 A1 WO2018043495 A1 WO 2018043495A1 JP 2017030966 W JP2017030966 W JP 2017030966W WO 2018043495 A1 WO2018043495 A1 WO 2018043495A1
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WIPO (PCT)
Prior art keywords
friction modifier
formula
lubricating oil
carbon atoms
oil composition
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PCT/JP2017/030966
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English (en)
Japanese (ja)
Inventor
剛 辰巳
長谷川　慎治
雄治 松井
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Ｊｘｔｇエネルギー株式会社
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Priority to JP2018537299A priority Critical patent/JP7034921B2/ja
Publication of WO2018043495A1 publication Critical patent/WO2018043495A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • 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
    • 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
    • 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
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • 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
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated

Definitions

  • the present invention relates to a lubricating oil composition.
  • Lubricating oil for transmitting power from the engine to the transmission is used in transmissions such as automatic transmission oil and continuously variable transmission oil.
  • a friction modifier is blended with the lubricating oil for the transmission in order to adjust its friction characteristics.
  • the friction modifier include an amine compound having a linear alkyl group having 12 to 30 carbon atoms or a linear alkenyl group, a fatty acid amide, a fatty acid metal salt, a fatty acid having an ⁇ -branched structure having 12 or more carbon atoms, and an amine. And the like are known (see Patent Documents 1 to 4 below).
  • transmission lubricants are required to have anti-shudder properties to improve riding comfort.
  • the anti-shudder property and the transmission torque capacity are generally in a trade-off relationship, and it is difficult to achieve both of these characteristics using a conventional transmission lubricant.
  • a conventional transmission lubricating oil having a high transmission torque capacity is used, shudder (abnormal vibration) is likely to occur, and the riding comfort of an automobile may be impaired.
  • shudder abnormal vibration
  • the prevention of shudder of transmission lubricant is improved, the friction coefficient of the wet clutch in the automatic transmission and the friction coefficient between the metal belt or metal chain and the metal pulley in the continuously variable transmission are reduced. As a result, transmission loss increases.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a lubricating oil composition capable of achieving both excellent anti-shudder resistance and a sufficiently high torque capacity.
  • the present invention has a lubricating base oil, a first hydrocarbon group containing a straight hydrocarbon chain having 12 or more carbon atoms, and a polar group containing oxygen and / or nitrogen.
  • a first friction modifier a second hydrocarbon group having 12 or more carbon atoms and not containing a straight hydrocarbon chain having 12 or more carbon atoms, and a polar group containing oxygen and / or nitrogen
  • a lubricating oil composition for a transmission containing two friction modifiers is a lubricating base oil, a first hydrocarbon group containing a straight hydrocarbon chain having 12 or more carbon atoms, and a polar group containing oxygen and / or nitrogen.
  • the combination of the first friction modifier and the second friction modifier sufficiently suppresses a decrease in transmission torque capacity, and provides excellent shudder prevention. Can be achieved.
  • the first friction modifier has excellent anti-shudder properties, but when used alone, the friction coefficient of the friction surface is excessively decreased and the transmission torque capacity tends to decrease. There is.
  • the second friction modifier when used alone, there is a tendency that sufficient anti-shudder properties cannot be obtained. Therefore, when the first friction modifier and the second friction modifier are used in combination, both the first friction modifier and the second friction modifier are adsorbed on the friction surface, and the first friction modifier It is surmised that the excessive decrease in the coefficient of friction seen when the first friction modifier is used alone is suppressed.
  • the combined effect of these friction modifiers is considered to be able to achieve both excellent shudder prevention and high transmission torque capacity, which were difficult to achieve with conventional transmission lubricants.
  • the content of the first friction modifier can be 0.01 to 5% by mass, and the content of the second friction modifier is 0.01 to 5%. It can be 5 mass%.
  • a lubricating oil composition capable of achieving both excellent anti-suddering properties and a sufficiently high torque capacity.
  • the transmission lubricating oil composition according to the present embodiment includes a lubricating base oil, a first friction modifier, and a second friction modifier.
  • the lubricating base oil used in the present embodiment is not particularly limited, and any of mineral oil and synthetic oil can be used.
  • Various conventionally known oils can be used as the mineral oil, and examples thereof include paraffin-based mineral oil, intermediate-based mineral oil, and naphthene-based mineral oil.
  • light neutral oil, intermediate neutral oil, heavy neutral oil, bright stock, etc. by solvent refining or hydrogen refining can be mentioned.
  • GTL base oil obtained by isomerizing wax may be used, and the effect becomes higher as the degree of purification increases.
  • various conventionally known oils can be used as well.
  • poly ⁇ -olefin including ⁇ -olefin copolymer
  • polybutene polyol ester
  • dibasic acid ester dibasic acid ester
  • phosphoric acid ester polyphenyl ether
  • alkylbenzene alkylnaphthalene
  • polyoxyalkylene glycol polyoxyalkylene glycol
  • neopentyl glycol silicone Oil
  • trimethylolpropane pentaerythritol, hindered ester, and the like
  • silicone Oil trimethylolpropane, pentaerythritol, hindered ester, and the like
  • lubricant base oils can be used singly or in combination of two or more, and may be used in combination of mineral oil and synthetic oil.
  • the kinematic viscosity of the lubricating base oil can be appropriately selected according to the use and purpose of the lubricating oil composition.
  • the upper limit value of the kinematic viscosity at 100 ° C. of the lubricating base oil is preferably 30 mm 2 / s or less, more preferably 20 mm 2 / s or less, more preferably 10 mm 2 / s or less.
  • the lubricating base oil is preferably 1 mm 2 / s or more, more preferably 2 mm 2 / s or more, and further preferably 3 mm 2 / s or more.
  • the kinematic viscosity at 100 ° C. is in the above range, friction at sliding portions such as gear bearings and clutches of the automatic transmission can be sufficiently reduced and the low temperature characteristics are also improved.
  • the kinematic viscosity at 100 ° C. exceeds 30 mm 2 / s, the fuel efficiency deteriorates and the low-temperature viscosity tends to be too high. Also, if the kinematic viscosity at 100 ° C.
  • the lubrication performance deteriorates, such as the amount of wear increases in sliding parts such as gear bearings and clutches of automatic transmissions, and the evaporability increases and lubrication occurs. Oil consumption may increase.
  • % C A of the lubricating base oil from the viewpoint of low-temperature properties, preferably not more than 20, more preferably 10 or less.
  • the viscosity index, the NOACK evaporation amount, and the like of the lubricating base oil used in this embodiment can be appropriately set according to the use of the lubricating oil composition.
  • the first friction modifier used in the present embodiment has a first hydrocarbon group containing a straight hydrocarbon chain having 12 or more carbon atoms and a polar group containing oxygen and / or nitrogen.
  • the first hydrocarbon group includes a linear hydrocarbon chain having 12 or more carbon atoms.
  • a straight hydrocarbon chain refers to a structure in which carbon atoms in a hydrocarbon are bonded without branching. Although it will not restrict
  • the upper limit of the carbon number of the hydrocarbon chain is not particularly limited, but is preferably 30 or less.
  • the straight hydrocarbon chain may be saturated or unsaturated.
  • the first hydrocarbon group may be, for example, a group composed of a straight hydrocarbon chain having 12 or more carbon atoms, and has a straight hydrocarbon chain having 12 or more carbon atoms and a carbon atom that serves as a branch point. It may be a group.
  • the straight chain hydrocarbon chain is preferably saturated.
  • the carbon number of the linear hydrocarbon chain exceeds 16, from the viewpoint of securing solubility in the base oil, the linear hydrocarbon chain is preferably unsaturated, and has a structure containing one double bond. It is more preferable to have.
  • the linear hydrocarbon chain is preferably saturated.
  • the position of the carbon atom serving as the branch point is not particularly limited, and may be present at any position.
  • the number of carbon atoms serving as branch points is preferably 2 or less, more preferably 1.
  • Examples of the first hydrocarbon group according to this embodiment include the following formula (1-a), formula (1-b), formula (2-a), formula (2-b), and the like.
  • the polar group containing oxygen and / or nitrogen is not particularly limited as long as it is a polar group contained in the friction modifier used in the lubricating oil composition for transmissions.
  • Examples of the structure include at least one functional group represented by the following formulas (3) to (21).
  • X is selected from the group consisting of Na, K, Zn, Ca, Mg, B and Al
  • h represents the valence of X
  • Y represents an atom selected from the group consisting of Na, K, Zn, Ca, Mg, B, and Al
  • i represents the valence of Y.
  • j and k each independently represent an integer of 1 to 10, in formula (9), l and m each independently represent an integer of 1 to 10, and formula (10)
  • n represents an integer of 0 to 10, in formula (11)
  • o represents an integer of 0 to 10
  • p represents an integer of 0 to 10
  • q represents an integer of 0 to 10.
  • j, k, l and m are not particularly limited as long as they are each independently an integer of 0 to 10, preferably an integer of 1 to 5, more preferably 1 It is an integer of ⁇ 3, more preferably 1.
  • n, o, p and q are each independently an integer of 0 to 10, but preferably 1 to It is an integer of 5, more preferably an integer of 1 to 4.
  • the first friction modifier only those having a single polar group can be used, or those having different polar groups can be used in any combination.
  • the first friction modifier is represented by the formula (4), formula (8), formula (9 ), Formula (10), formula (16), formula (19) and at least one functional group represented by formula (20), preferably at least one functional group represented by formula (8) More preferably.
  • examples of the first friction modifier include compounds represented by the following formulas (22) to (25). These first friction modifiers can be used singly or in combination of two or more.
  • n an integer of 0 to 10.
  • the first friction modifier may be a commercially available product or may be synthesized by a known method.
  • the content of the first friction modifier is not particularly limited, but is preferably 0.01 to 5% by mass, more preferably based on the total amount of the lubricating oil composition.
  • the content is 0.01 to 3% by mass, and more preferably 0.01 to 1% by mass.
  • the second friction modifier used in the present embodiment contains a second hydrocarbon group having 12 or more carbon atoms and not containing a straight hydrocarbon chain having 12 or more carbon atoms, and oxygen and / or nitrogen. It has polar groups.
  • the second hydrocarbon group is a group having 12 or more carbon atoms and not containing a straight hydrocarbon chain having 12 or more carbon atoms.
  • the second hydrocarbon group is not particularly limited as long as it does not contain a linear hydrocarbon chain having 12 or more carbon atoms, but preferably has 14 or more carbon atoms, more preferably 16 or more carbon atoms.
  • the upper limit of the carbon number of the second hydrocarbon group is not particularly limited, but is preferably 30 or less.
  • the second hydrocarbon group may be saturated or unsaturated.
  • the second hydrocarbon group is a group that does not include a straight hydrocarbon chain having 12 or more carbon atoms, but preferably does not include a straight hydrocarbon chain having 10 or more carbon atoms, and is a straight chain having 8 or more carbon atoms. More preferably, it does not contain hydrocarbon chains.
  • the second hydrocarbon group preferably has one or more carbon atoms that serve as branch points.
  • Examples of such a second hydrocarbon group include the following formula (26-a), formula (26-b), formula (27-a), formula (27-b), and the like.
  • the polar group containing oxygen and / or nitrogen in the second friction modifier is not particularly limited as long as it is a polar group contained in the friction modifier used in the lubricating oil composition for a transmission.
  • Specific examples of such a polar group structure include at least one functional group represented by the following formulas (28) to (46).
  • X is selected from the group consisting of Na, K, Zn, Ca, Mg, B, and Al
  • h represents a valence of X
  • Y represents an atom selected from the group consisting of Na, K, Zn, Ca, Mg, B, and Al
  • i represents a valence of Y.
  • j and k each independently represent an integer of 1 to 10, in formula (34), l and m each independently represents an integer of 1 to 10, and formula (35)
  • n represents an integer of 0 to 10, in formula (36)
  • o represents an integer of 0 to 10, in formula (37)
  • p represents an integer of 0 to 10
  • q represents an integer of 0 to 10.
  • j, k, l and m are not particularly limited as long as they are each independently an integer of 0 to 10, preferably an integer of 1 to 5, more preferably 1. It is an integer of ⁇ 3, more preferably 1.
  • n, o, p and q are each independently an integer of 0 to 10, preferably 1 to It is an integer of 5, more preferably an integer of 1 to 4.
  • the second friction modifier only those having a single polar group can be used, or those having different polar groups can be used in any combination. From the viewpoint of having a sufficient adsorptive power at a high temperature range and imparting a higher torque capacity to the lubricating oil composition, the second friction modifier is represented by the formula (35), formula (36), formula (37). And at least one functional group represented by formula (38), and more preferably at least one functional group represented by formula (35).
  • Examples of the second friction modifier include compounds represented by the following formula (47) and formula (48). These 2nd friction modifiers can be used individually by 1 type or in combination of 2 or more types.
  • n an integer of 0 to 10.
  • n an integer of 0 to 10.
  • the content of the second friction modifier is not particularly limited, but is preferably 0.01 to 5% by mass, more preferably based on the total amount of the lubricating oil composition.
  • the content is 0.01 to 3% by mass, and more preferably 0.01 to 1% by mass.
  • the content ratio of the first friction modifier and the second friction modifier is, for example, A for the number of moles of the first friction modifier, and the second friction modifier.
  • the lubricating oil composition according to the present embodiment further contains an optional additive other than the first friction modifier and the second friction modifier as necessary for the purpose of further improving the performance. Can do.
  • additive an additive that can be added to the lubricating oil composition for a transmission can be used without particular limitation.
  • Additives include, for example, viscosity index improvers, ashless dispersants and / or friction modifiers other than the first friction modifier and the second friction modifier, wear inhibitors, metal detergents, metal inertness Examples thereof include an agent, an antioxidant, and an antifoaming agent. These additives can be used individually by 1 type or in combination of 2 or more types.
  • the viscosity index improver examples include non-dispersed or dispersed viscosity index improvers. Specifically, non-dispersed or dispersed polymethacrylates, non-dispersed or dispersed ethylene- ⁇ -olefin copolymers or hydrides thereof, polyisobutylene or hydrides thereof, styrene-diene hydrogenated copolymers, Examples thereof include styrene-maleic anhydride ester copolymers, polymethacrylate-styrene copolymers, polymethacrylate-olefin copolymers, and polyalkylstyrenes.
  • the weight average molecular weight of these viscosity index improvers is not particularly limited, and is usually 10,000 to 1,000,000.
  • the content of the viscosity index improver is not particularly limited, but is usually 0.5 to 35% by mass based on the total amount of the lubricating oil composition.
  • Ashless dispersants and / or friction modifiers other than the first friction modifier and the second friction modifier include amine compounds, imide compounds, fatty acid esters, fatty acid amides, fatty acids, aliphatic alcohols, aliphatic ethers, molybdenum Examples thereof include organic molybdenum compounds such as dithiophosphate (MoDTP) and molybdenum dithiocarbamate (MoDTC), graphite, molybdenum disulfide, antimony sulfide, boron compounds, polytetrafluoroethylene, and the like.
  • the content of the ashless dispersant and / or the friction modifier is not particularly limited, but is usually 0.1 to 10% by mass based on the total amount of the lubricating oil composition.
  • a sulfur type antiwear agent for example, a sulfur type antiwear agent, a phosphorus type antiwear agent and the like can be used.
  • the sulfur-based antiwear agent include disulfides, polysulfides, sulfurized olefins, sulfurized fats and oils, sulfurized esters, dithiocarbamates, zinc dithiocarbamates and the like.
  • the phosphorus-based antiwear agent include phosphoric acid, monothiophosphoric acid, dithiophosphoric acid, trithiophosphoric acid, tetrathiophosphoric acid, phosphate ester, phosphite ester, and thiophosphate ester.
  • the content of the antiwear agent is not particularly limited, but is usually 0.01 to 10% by mass based on the total amount of the lubricating oil composition.
  • metal detergents examples include calcium sulfonate, magnesium sulfonate, barium sulfonate, calcium salicylate, magnesium salicylate, calcium phenate, barium phenate, and other normal salts, basic salts, and overbased salts. Can be mentioned.
  • the content of the metallic detergent is not particularly limited, but is usually 0.1 to 10% by mass based on the total amount of the lubricating oil composition.
  • the metal deactivator examples include imidazoline, pyrimidine, thiadiazole, mercaptobenzothiazole, benzotriazole, and derivatives thereof.
  • the content of the metal deactivator is not particularly limited, but is usually 0.01 to 10% by mass based on the total amount of the lubricating oil composition.
  • antioxidants examples include phenol-based, amine-based, copper-based and molybdenum-based antioxidants.
  • amine-based antioxidants such as alkylated diphenylamine, phenyl- ⁇ -naphthylamine, alkylated- ⁇ -naphthylamine, 2,6-di-t-butyl-4-methylphenol, 4,4′-methylenebis And hindered phenol antioxidants such as (2,6-di-t-butylphenol).
  • the content of the antioxidant is not particularly limited, but is usually 0.05 to 5% by mass based on the total amount of the lubricating oil composition.
  • any compound usually used as an antifoaming agent for lubricating oil can be used, and examples thereof include silicones such as dimethyl silicone and fluorosilicone. One or two or more compounds arbitrarily selected from these can be blended in any amount.
  • the lubricating oil composition according to the present embodiment is suitable as a lubricating oil composition for transmissions such as automatic transmission oil and continuously variable transmission oil because it can maintain a balance between excellent anti-shudder properties and high torque capacity. It is. It can also be used as a lubricating oil for construction machines, agricultural machines, manual transmissions, motorcycle gasoline engines, diesel engines, gas engines, shock absorber oils, etc., equipped with transmissions having wet clutches and wet brakes.
  • Lubricating oil compositions having the compositions shown in Tables 1 and 2 were prepared using the following base oils and additives.
  • the content ratio of each component in Tables 1 and 2 indicates the content ratio based on the total amount of the lubricating oil composition.
  • Base oil Hydrorefined mineral oil (40 ° C. kinematic viscosity: 19.4 mm 2 / s, 100 ° C. kinematic viscosity: 4.2 mm 2 / s, viscosity index: 125, sulfur content: less than 1 ppm)
  • d1 Non-dispersed polymethacrylate viscosity index improver (weight average molecular weight: 20000)
  • d2 Non-boronated succinimide dispersant [bis-type alkenyl succinimide (alkenyl group: polyisobutenyl group of Mw1000, polyamine moiety: tetraethylenepentamine), nitrogen content: 1.3% by mass]
  • d3 Boronated succinimide dispersant [Bis type alkenyl succinimide (alkenyl group: polyisobutenyl group of Mw1000, polyamine moiety: tetraethylenepentamine), nitrogen content: 1.3% by mass, boron content: 0.3 mass%)
  • d4 Phosphite ester antiwear agent (dialkyl phosphite)
  • d5 Overbased calcium sulfonate metal detergent (TBN300, calcium content: 12% by mass)
  • d6 Metal deactivator (thiadiazole, sulfur content
  • the friction modifiers b1 and b2 were used as the friction modifiers b1 and b2.
  • the friction modifier b3 and the friction modifiers c1 and c2 were synthesized as follows.
  • the torque capacities of the lubricating oil compositions prepared in Examples 8 to 9 and Comparative Examples 9 to 10 were calculated according to the JASO M358 low load method using a friction and wear tester (LFW-1), and the sliding speed was calculated. It was determined by calculating the friction coefficient ⁇ at 0.075 m / s.
  • Tables 3 and 4 show the results of evaluation tests of the lubricating oil compositions of Examples 1 to 9 and Comparative Examples 1 to 10.

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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

La présente invention concerne une composition lubrifiante pour transmission variable, qui contient : une huile de base lubrifiante; un premier régulateur de frottement qui a un premier groupe hydrocarboné contenant une chaîne hydrocarbonée linéaire qui a 12 atomes de carbone ou plus et un groupe polaire contenant un atome d'oxygène et/ou un atome d'azote; et un second régulateur de frottement qui a un second groupe hydrocarboné et un groupe polaire contenant un atome d'oxygène et/ou un atome d'azote, ledit deuxième groupe hydrocarboné ayant 12 atomes de carbone ou plus et ne contenant pas de chaîne hydrocarbonée linéaire qui a 12 atomes de carbone ou plus.
PCT/JP2017/030966 2016-08-31 2017-08-29 Composition lubrifiante WO2018043495A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020085228A1 (fr) * 2018-10-22 2020-04-30 出光興産株式会社 Composition lubrifiante et son procédé de production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002105478A (ja) * 2000-09-29 2002-04-10 Nippon Mitsubishi Oil Corp 潤滑油組成物
JP2009120760A (ja) * 2007-11-16 2009-06-04 Idemitsu Kosan Co Ltd 潤滑油組成物
JP2010513695A (ja) * 2006-12-18 2010-04-30 ザ ルブリゾル コーポレイション 機能性流体

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002105478A (ja) * 2000-09-29 2002-04-10 Nippon Mitsubishi Oil Corp 潤滑油組成物
JP2010513695A (ja) * 2006-12-18 2010-04-30 ザ ルブリゾル コーポレイション 機能性流体
JP2009120760A (ja) * 2007-11-16 2009-06-04 Idemitsu Kosan Co Ltd 潤滑油組成物

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020085228A1 (fr) * 2018-10-22 2020-04-30 出光興産株式会社 Composition lubrifiante et son procédé de production
CN112823199A (zh) * 2018-10-22 2021-05-18 出光兴产株式会社 润滑油组合物及其制造方法
JPWO2020085228A1 (ja) * 2018-10-22 2021-09-16 出光興産株式会社 潤滑油組成物及びその製造方法
US11401481B2 (en) 2018-10-22 2022-08-02 Idemitsu Kosan Co., Ltd. Lubricant composition and method for producing same
CN112823199B (zh) * 2018-10-22 2022-10-04 出光兴产株式会社 润滑油组合物及其制造方法
JP7444782B2 (ja) 2018-10-22 2024-03-06 出光興産株式会社 潤滑油組成物及びその製造方法

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