WO2015056783A1 - Lubricating oil composition - Google Patents
Lubricating oil composition Download PDFInfo
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- WO2015056783A1 WO2015056783A1 PCT/JP2014/077707 JP2014077707W WO2015056783A1 WO 2015056783 A1 WO2015056783 A1 WO 2015056783A1 JP 2014077707 W JP2014077707 W JP 2014077707W WO 2015056783 A1 WO2015056783 A1 WO 2015056783A1
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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
- 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
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
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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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
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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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
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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
- 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
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
- C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
- C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
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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
- 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
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/086—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type polycarboxylic, e.g. maleic acid
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—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
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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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/12—Groups 6 or 16
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
Definitions
- the present invention relates to a lubricating oil composition.
- One way to save fuel in transmissions and final reduction gears is to reduce the viscosity of lubricating oil.
- automatic transmissions for automobiles and continuously variable transmissions have torque converters, wet clutches, gear bearing mechanisms, oil pumps, hydraulic control mechanisms, etc.
- manual transmissions and final reduction gears are gear bearings.
- the present invention has been made in view of such circumstances, and has an object to provide a lubricating oil composition having extreme pressure and wear resistance capable of reducing fuel consumption and further reducing the friction coefficient between metals.
- the present invention provides a lubricating oil composition shown in the following [1] to [4], a use of the composition shown in the following [5], and a production of the composition shown in the following [6]. Provide use for.
- a lubricating oil composition comprising 100 to 1000 ppm by mass of an organic molybdenum compound in terms of molybdenum element, based on the total amount, and having a kinematic viscosity at 40 ° C. of 50 mm 2 / s or less.
- composition as a hypoid gear lubricant, wherein the composition contains 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricant base oil, and has a kinematic viscosity at 40 ° C. Containing a lubricating base oil having an A of 18 to 28 mm 2 / s and an organic molybdenum compound of 100 to 1000 ppm by mass in terms of molybdenum based on the total amount of the lubricating oil composition, and a kinematic viscosity at 40 ° C. of 50 mm Use that is 2 / s or less.
- compositions for the production of a hypoid gear lubricant wherein the composition contains 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricant base oil, and is 40 ° C. Containing a lubricating base oil having a kinematic viscosity of 18 to 28 mm 2 / s and an organic molybdenum compound of 100 to 1000 mass ppm in terms of molybdenum element based on the total amount of the lubricating oil composition. Use wherein the viscosity is 50 mm 2 / s or less.
- the kinematic viscosity referred to in the present invention means the kinematic viscosity defined in ASTM D-445.
- the viscosity index as used in the present invention means a viscosity index measured in accordance with JIS K 2283-1993.
- a lubricating oil composition that has sufficient extreme pressure and wear resistance and further reduces the coefficient of friction between metals. Therefore, when applied to a manual transmission, an automatic transmission, a continuously variable transmission, or an industrial gear system for automobiles, the fuel consumption is achieved while maintaining the necessary characteristics as gear oil, particularly hypoid gear oil. Can do.
- the lubricating oil composition according to this embodiment comprises (A) 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and a kinematic viscosity at 40 ° C. is 18 to 28 mm 2 / s.
- the lubricating oil composition of the present embodiment comprises (A) 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and has a kinematic viscosity at 40 ° C. of 18 to 28 mm 2 / s. Contains lubricating base oil.
- the alcohol constituting the ester base oil may be a monohydric alcohol or a polyhydric alcohol (polyol), and the acid constituting the ester base oil may be a monobasic acid or a polybasic acid. Moreover, if it is a base oil containing an ester bond, a complex ester compound may be used.
- the monohydric alcohol those having 1 to 24 carbon atoms, preferably 1 to 12 carbon atoms, more preferably 1 to 8 carbon atoms are usually used. Such alcohols may be linear or branched, It may be saturated or unsaturated. Specific examples of the alcohol having 1 to 24 carbon atoms include methanol, ethanol, linear or branched propanol, linear or branched butanol, and linear or branched pentanol.
- polyhydric alcohol those having 2 to 10 valences, preferably 2 to 6 valences are usually used.
- divalent to 10-valent polyhydric alcohol include, for example, ethylene glycol, diethylene glycol, polyethylene glycol (ethylene glycol tri- to 15-mer), propylene glycol, dipropylene glycol, polypropylene glycol (propylene glycol 3- 15-mer), 1,3-propanediol, 1,2-propanediol, 1,3-butanediol, 1,4-butanediol, 2-methyl-1,2-propanediol, 2-methyl-1, Dihydric alcohols such as 3-propanediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,5-pentanediol, neopentylglycol; glycerin, polyglycerin (glycerin (glycerin (g
- Polysaccharides such as xylose, arabinose, ribose, rhamnose, glucose, fructose, galactose, mannose, sorbose, cellobiose, maltose, isomaltose, trehalose, sucrose, and the like, and mixtures thereof. It is.
- a fatty acid having 2 to 24 carbon atoms is usually used as the monobasic acid.
- the fatty acid may be linear or branched, and may be saturated or unsaturated. Specifically, for example, acetic acid, propionic acid, linear or branched butanoic acid, linear or branched pentanoic acid, linear or branched hexanoic acid, linear or branched Branched heptanoic acid, linear or branched octanoic acid, linear or branched nonanoic acid, linear or branched decanoic acid, linear or branched undecanoic acid, Linear or branched dodecanoic acid, linear or branched tridecanoic acid, linear or branched tetradecanoic acid, linear or branched pentadecanoic acid, linear or branched Hexadecanoic acid, linear or branched heptadecanoic acid, linear or branched octade
- polybasic acid examples include dibasic acids having 2 to 16 carbon atoms and trimellitic acid.
- the dibasic acid having 2 to 16 carbon atoms may be linear or branched, and may be saturated or unsaturated.
- ethanedioic acid propanedioic acid, linear or branched butanedioic acid, linear or branched pentanedioic acid, linear or branched hexanedioic acid, Linear or branched heptanedioic acid, linear or branched octanedioic acid, linear or branched nonanedioic acid, linear or branched decanedioic acid, linear Linear or branched undecanedioic acid, linear or branched dodecanedioic acid, linear or branched tridecanedioic acid, linear or branched tetradecanedioic acid, linear or Branched
- the combination of the alcohol and the acid forming the ester is arbitrary and is not particularly limited.
- Examples of the ester that can be used in the present invention include the following esters. These esters may be used alone, or 2 You may combine seeds or more.
- (A) ester of monohydric alcohol and monobasic acid (b) ester of polyhydric alcohol and monobasic acid (c) ester of monohydric alcohol and polybasic acid (d) polyhydric alcohol and polybasic acid (E) Mixed ester of monohydric alcohol, mixture of polyhydric alcohol and polybasic acid (f) Mixed ester of polyhydric alcohol with monobasic acid, polybasic acid (g) Monohydric alcohol , Mixtures of polyhydric alcohols with monobasic acids and polybasic acids
- an ester of a monohydric alcohol and a polybasic acid is preferable because of excellent friction resistance and oxidation stability, and a dibasic acid which is an ester of a monohydric alcohol and a dibasic acid More preferably, it is an ester.
- the content of the ester base oil is 0.5 to 70% by mass, preferably 1% by mass or more, more preferably 2% by mass or more, and still more preferably based on the total amount of the lubricating base oil. 3% by mass or more. Moreover, Preferably it is 60 mass% or less, More preferably, it is 55 mass% or less. When the content of the ester base oil is 0.5% by mass or more, extreme pressure properties, wear resistance, seizure resistance, and friction resistance tend to be excellent. Moreover, it exists in the tendency which is excellent in oxidation stability as ester base oil is 70 mass% or less.
- the kinematic viscosity at 40 ° C. of the ester base oil is not particularly limited, but is preferably 5 mm 2 / s or more, more preferably 6 mm 2 / s or more, and further preferably 7 mm 2 / s or more. Moreover, Preferably it is 50 mm ⁇ 2 > / s or less, More preferably, it is 30 mm ⁇ 2 > / s or less, More preferably, it is 20 mm ⁇ 2 > / s or less.
- the kinematic viscosity at 40 ° C. is 5 mm 2 / s or more, or 50 mm 2 / s or less, extreme pressure properties, wear resistance, and seizure resistance tend to be excellent.
- the viscosity index of the ester base oil is not particularly limited, but is preferably 125 or more, more preferably 130 or more, and further preferably 135 or more. When the viscosity index is 125 or more, the low temperature fluidity tends to be excellent.
- the pour point of the ester base oil is not particularly limited, but is preferably ⁇ 30 ° C. or less, more preferably ⁇ 50 ° C. or less, still more preferably ⁇ 60 ° C. or less, and particularly preferably ⁇ 70 ° C. It is as follows.
- the flash point of the ester base oil is not particularly limited, but is preferably 200 ° C or higher, more preferably 250 ° C or higher, and further preferably 300 ° C or higher.
- the lubricating base oil according to this embodiment may contain a base oil component other than the ester base oil as long as the ester base oil is 0.5 to 70% by mass based on the total amount of the lubricating base oil. it can.
- Base oil components other than the ester base oil are not particularly limited, and base oils used for ordinary lubricating oils can be used. Specifically, a mineral base oil, a synthetic base oil, or a mixture obtained by mixing two or more base oils selected from these at an arbitrary ratio can be used.
- mineral base oils lubricating oil fractions obtained by subjecting crude oil to atmospheric distillation and reduced pressure distillation are subjected to solvent deburring, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrorefining, sulfuric acid
- Mineral oil base oils such as paraffinic and naphthenic oils refined by combining purification treatments such as washing and clay treatment alone or in combination of two or more, base oils produced by catalytic dewaxing of normal paraffins, isoparaffins, petroleum waxes, etc. Is mentioned. These base oils may be used alone or in combination of two or more at any ratio.
- Mineral oil base oils are base oils classified as Group II or Group III defined in API (American Petroleum Institute) Base Stock Categories from the viewpoint of lowering viscosity and sulfur content. Are preferred, and base oils classified in Group III are more preferred.
- Synthetic base oils are produced from poly ⁇ -olefins or their hydrides, isobutene oligomers or their hydrides, isoparaffins, alkylbenzenes, alkylnaphthalenes, polyoxyalkylene glycols, dialkyldiphenyl ethers, polyphenyl ethers, and Fischer-Tropsch processes.
- Base oils produced by catalytic dewaxing of the wax.
- the synthetic base oil is preferably a base oil produced by catalytic dewaxing of a wax produced from a poly ⁇ -olefin or a Fischer-Tropsch process.
- the poly ⁇ -olefin include oligomers or co-oligomers of 2 to 32 carbon atoms, preferably 6 to 16 carbon atoms (for example, 1-octene oligomer, 1-decene oligomer, 1-dodecene oligomer). , Ethylene-propylene co-oligomer and the like) and hydrides thereof.
- polystyrene resin there is no particular limitation on the production method of the poly ⁇ -olefin, but, for example, aluminum trichloride, boron trifluoride, or boron trifluoride and water, alcohol (for example, ethanol, propanol, or butanol), carboxylic acid, or ester (for example, polymerization of ⁇ -olefin in the presence of a polymerization catalyst such as a Friedel-Crafts catalyst containing a complex with ethyl acetate or ethyl propionate) may be mentioned.
- a polymerization catalyst such as a Friedel-Crafts catalyst containing a complex with ethyl acetate or ethyl propionate
- the kinematic viscosity of the lubricating base oil at 40 ° C. is 18 to 28 mm 2 / s, preferably 20 mm 2 / s or more, more preferably 22 mm 2 / s or more. Moreover, Preferably it is 27 mm ⁇ 2 > / s or less, More preferably, it is 26 mm ⁇ 2 > / s or less.
- kinematic viscosity at 40 ° C. to 28 mm 2 / s or less, it is possible to obtain a lubricating oil composition having excellent low-temperature fluidity and low fluid resistance, and thus having a smaller rotational resistance.
- the kinematic viscosity at 100 ° C. of the lubricating base oil is not particularly limited, but is preferably 1 mm 2 / s or more, more preferably 3 mm 2 / s or more, and further preferably 4 mm 2 / s or more. Moreover, it is preferably 10 mm 2 / s or less, more preferably 8 mm 2 / s or less, and further preferably 6 mm 2 / s or less.
- the viscosity index of the lubricating base oil is not particularly limited, but is preferably 120 or more, more preferably 125 or more, and further preferably 130 or more. By setting the viscosity index to 120 or more, it is possible to obtain a lubricating oil composition that exhibits good viscosity characteristics from low temperature to high temperature and is excellent in oxidation stability.
- the lubricating oil composition according to this embodiment contains 100 to 1000 ppm by mass of an organic molybdenum compound in terms of molybdenum element, based on the total amount of the lubricating oil composition, as a friction modifier.
- the metal friction coefficient can be reduced and the fuel economy can be improved.
- organic molybdenum compound according to the present embodiment examples include sulfur-containing organic molybdenum compounds such as molybdenum dithiophosphate and molybdenum dithiocarbamate (MoDTC), molybdenum compounds (for example, molybdenum oxide such as molybdenum dioxide and molybdenum trioxide, and orthomolybdic acid.
- sulfur-containing organic molybdenum compounds such as molybdenum dithiophosphate and molybdenum dithiocarbamate (MoDTC)
- molybdenum compounds for example, molybdenum oxide such as molybdenum dioxide and molybdenum trioxide
- orthomolybdic acid examples include sulfur-containing organic molybdenum compounds such as molybdenum dithiophosphate and molybdenum dithiocarbamate (MoDTC), molybdenum compounds (for example, molybdenum oxide such as molybdenum dioxide and molybdenum trioxid
- Molybdate such as paramolybdic acid, (poly) sulfurized molybdate, metal salts of these molybdates, molybdate such as ammonium salt, molybdenum disulfide, molybdenum trisulfide, molybdenum pentasulfide, molybdenum sulfide such as polysulfide molybdenum , Sulfurized molybdic acid, metal salts or amine salts of sulfurized molybdic acid, molybdenum halides such as molybdenum chloride, etc.) and sulfur-containing organic compounds (eg, alkyl (thio) xanthate, thiadiazole, mercaptothiadi) Sol, thiocarbonate, tetrahydrocarbyl thiuram disulfide, bis (di (thio) hydrocarbyl dithiophosphonate) disulfide, organic (poly) sulfide, s
- organic molybdenum compound an organic molybdenum compound that does not contain sulfur as a constituent element can be used.
- organic molybdenum compounds that do not contain sulfur as a constituent element include molybdenum-amine complexes, molybdenum-succinimide complexes, molybdenum salts of organic acids, and molybdenum salts of alcohols. Complexes, molybdenum salts of organic acids and molybdenum salts of alcohols are preferred.
- the content of the organomolybdenum compound is 100 to 1000 ppm by mass in terms of molybdenum element, preferably 200 ppm by mass or more, based on the total amount of the lubricating oil composition.
- it is 300 mass ppm or more.
- it is 900 mass ppm or less preferably, More preferably, it is 800 mass ppm or less.
- the content is 100 mass ppm or more, the wear resistance and the friction resistance tend to be excellent, and when the content is 1000 mass ppm or less, the seizure resistance tends to be excellent.
- the molybdenum element conversion amount of the organic molybdenum compound can be obtained by, for example, ICP elemental analysis.
- the lubricating oil composition according to the present embodiment includes, as a viscosity modifier, 2 wt% or more of co-polymerized ⁇ -olefin and an ester monomer having a polymerizable unsaturated bond, based on the total amount of the lubricating oil composition.
- a coalescence may be further contained.
- the copolymer preferably has a weight average molecular weight of 2000 to 20000. By further containing such a copolymer, oil film retention and extreme pressure can be further improved.
- the ester monomer having a polymerizable unsaturated bond is not particularly limited as long as it is a compound having a polymerizable unsaturated bond and an ester bond, but at least one of the ⁇ carbon and ⁇ carbon of the carboxy group is ethylenically unsaturated.
- An ⁇ , ⁇ -ethylenically unsaturated dicarboxylic acid diester which is a diester of an unsaturated dicarboxylic acid forming a saturated bond (ie, C ⁇ C double bond) is preferred.
- the ⁇ , ⁇ -ethylenically unsaturated dicarboxylic acid forms an ethylenically unsaturated bond with respect to both carboxy groups such as maleic acid, fumaric acid, citraconic acid, and mesaconic acid.
- ⁇ , ⁇ -ethylenically unsaturated bonds are not limited to compounds present in the main chain, and only one carboxy group such as glutaconic acid has ⁇ and ⁇ carbons that are ethylenic. It is a concept that includes a compound having an unsaturated bond, and also includes a compound in which an ⁇ , ⁇ -ethylenically unsaturated bond is found in the side chain, such as itaconic acid.
- the structure of the copolymer of the ⁇ -olefin and the ester monomer having a polymerizable unsaturated bond is not particularly limited as long as the weight average molecular weight is 2000 to 20000. Further, the production method is not particularly limited, and those produced by a known method can be used.
- the weight average molecular weight (Mw) of the copolymer of an ⁇ -olefin and an ester monomer having a polymerizable unsaturated bond is 2000 to 20000, preferably 4000 or more, more preferably 6000 or more. Moreover, Preferably it is 15000 or less, More preferably, it is 12000 or less.
- the weight average molecular weight means that two columns of GHSHR-M (7.8 mm ID ⁇ 30 cm) manufactured by Tosoh Corporation are used in series in a 150-C ALC / GPC apparatus manufactured by Waters, and tetrahydrofuran is used as a solvent.
- RI differential refractometer
- the copolymer content is preferably 2% by mass or more, more preferably 2.5% by mass or more, based on the total amount of the lubricating oil composition. More preferably, it is 3.5 mass% or more.
- the upper limit of the content is not particularly limited, but is preferably 25% by mass or less, more preferably 24% by mass or less, and further preferably 22% by mass or less.
- the content of the component (D) is 25% by mass or less, sufficient extreme pressure property, abrasion resistance, seizure resistance, friction resistance and oxidation stability tend to be exhibited.
- the lubricating oil composition according to this embodiment may further contain 100 to 500 mass ppm of a boron-containing dispersant in terms of boron element based on the total amount of the lubricating oil composition. Thereby, oil film retainability and extreme pressure property can be further improved.
- Boron-containing dispersant is a borated ashless dispersant.
- the ashless dispersant include a nitrogen-containing compound having at least one linear or branched alkyl group or alkenyl group having 40 to 400 carbon atoms or a derivative thereof, a modified product of alkenyl succinimide, and the like. Can be mentioned. One or more kinds arbitrarily selected from these can be blended.
- the succinimide includes a so-called monotype succinimide represented by the general formula (3) in which succinic anhydride is added to one end of the polyamine, and a general formula in which succinic anhydride is added to both ends of the polyamine ( And so-called bis-type succinimide represented by 4).
- R 9 represents an alkyl group or alkenyl group having 40 to 400 carbon atoms, preferably an alkyl group or alkenyl group having 60 to 350 carbon atoms, and p is 1 to 5, preferably 2 to 4. Indicates an integer.
- R 10 and R 11 may be the same or different and each represents an alkyl group or alkenyl group having 40 to 400 carbon atoms, preferably an alkyl group or alkenyl group having 60 to 350 carbon atoms, A polybutenyl group is preferred.
- q represents an integer of 0 to 4, preferably 1 to 3.
- the lubricating oil composition according to this embodiment may contain one of mono-type or bis-type succinimides, or may contain both.
- the production method of the succinimide is not particularly limited.
- an alkyl succinic acid or alkenyl succinic acid obtained by reacting a compound having an alkyl group or alkenyl group having 40 to 400 carbon atoms with maleic anhydride at 100 to 200 ° C. is used as a polyamine. It can obtain by making it react.
- Specific examples of the polyamine include diethylenetriamine, triethylenetetramine, tetraethylenepentamine, and pentaethylenehexamine.
- the content of the boron-containing dispersant is preferably 100 to 500 ppm by mass in terms of boron element, more preferably 150 ppm by mass, based on the total amount of the lubricating oil composition. It is above, More preferably, it is 200 mass ppm or more. More preferably, it is 450 mass ppm or less, More preferably, it is 400 mass ppm or less.
- the content is 100 ppm by mass or more, extreme pressure properties, wear resistance, seizure resistance, and friction resistance tend to be excellent. Moreover, it exists in the tendency for it to be excellent with friction resistance as the content is 500 mass ppm or less.
- the boron element conversion amount of a boron containing dispersing agent can be calculated
- the lubricating oil composition according to this embodiment may contain any additive generally used in lubricating oils depending on the purpose in order to further improve its performance.
- additives include viscosity modifiers other than the above-mentioned copolymers, metal-based detergents, ashless dispersants other than boron-containing dispersants, antiwear agents (or extreme pressure agents), antioxidants, and corrosion.
- additives such as an inhibitor, a rust inhibitor, a demulsifier, a metal deactivator, an antifoaming agent, and a friction modifier other than the component (B).
- the viscosity modifier other than the copolymer is specifically a non-dispersed or dispersed ester group-containing viscosity modifier, such as a non-dispersed or dispersed poly (meth) acrylate viscosity modifier, non-dispersed.
- a non-dispersed or dispersed poly (meth) acrylate viscosity modifier non-dispersed.
- Type or dispersion type olefin- (meth) acrylate copolymer-based viscosity modifier styrene-maleic anhydride copolymer-based viscosity modifier, and mixtures thereof.
- An acrylate viscosity modifier is preferred.
- non-dispersed or dispersed polymethacrylate viscosity modifiers are preferred.
- viscosity modifiers other than the above-mentioned copolymers include non-dispersed or dispersed ethylene- ⁇ -olefin copolymers or hydrides thereof, polyisobutylene or hydrides thereof, styrene-diene hydrogenated copolymers, Examples thereof include polyalkylstyrene.
- metal detergents include sulfonate detergents, salicylate detergents, phenate detergents, and the like, including any of normal salts, basic normal salts, and overbased salts with alkali metals or alkaline earth metals. Can be blended. In use, one kind or two or more kinds arbitrarily selected from these can be blended.
- any non-boron ashless dispersant used in lubricating oils can be used.
- a linear or branched alkyl group or alkenyl group having 40 to 400 carbon atoms can be used.
- Examples include polyamines having at least one, modified products of these carboxylic acids, phosphoric acids, and the like. In use, one kind or two or more kinds arbitrarily selected from these can be blended.
- any antiwear agent / extreme pressure agent used in lubricating oils can be used.
- sulfur-based, phosphorus-based, sulfur-phosphorus extreme pressure agents and the like can be used.
- zinc dialkyldithiophosphate (ZnDTP) phosphites, thiophosphites, dithiophosphites Acid esters, trithiophosphites, phosphate esters, thiophosphate esters, dithiophosphate esters, trithiophosphate esters, amine salts thereof, metal salts thereof, derivatives thereof, dithiocarbamate, zinc dithio Carbamate, MoDTC, disulfides, polysulfides, sulfurized olefins, sulfurized fats and oils, and the like can be given.
- addition of a sulfur-based extreme pressure agent is preferable, and sulfurized fats and oils are particularly preferable.
- antioxidants examples include ashless antioxidants such as phenols and amines, and metal antioxidants such as copper and molybdenum.
- phenol-based ashless antioxidants include 4,4′-methylenebis (2,6-di-tert-butylphenol), 4,4′-bis (2,6-di-tert-
- amine-based ashless antioxidants include phenyl- ⁇ -naphthylamine, alkylphenyl- ⁇ -naphthylamine, and dialkyldiphenylamine.
- corrosion inhibitor examples include benzotriazole, tolyltriazole, thiadiazole, and imidazole compounds.
- rust preventive examples include petroleum sulfonate, alkylbenzene sulfonate, dinonylnaphthalene sulfonate, alkenyl succinic acid ester, and polyhydric alcohol ester.
- demulsifier examples include polyalkylene glycol nonionic surfactants such as polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, and polyoxyethylene alkyl naphthyl ether.
- metal deactivator examples include imidazoline, pyrimidine derivatives, alkylthiadiazole, mercaptobenzothiazole, benzotriazole or derivatives thereof, 1,3,4-thiadiazole polysulfide, 1,3,4-thiadiazolyl-2,5-bis.
- metal deactivator examples include dialkyldithiocarbamate, 2- (alkyldithio) benzimidazole, ⁇ - (o-carboxybenzylthio) propiononitrile.
- antifoaming agent examples include silicone oil having a kinematic viscosity at 25 ° C. of 1,000 to 100,000 mm 2 / s, alkenyl succinic acid derivative, ester of polyhydroxy aliphatic alcohol and long chain fatty acid, methyl salicylate and o- Examples thereof include esters with hydroxybenzyl alcohol.
- Examples of the friction modifier other than the component (B) include ashless friction modifiers, and any compound usually used as an ashless friction modifier for lubricating oils can be used. Having at least one hydrocarbon group, preferably an alkyl group or an alkenyl group, particularly a straight-chain alkyl group or straight-chain alkenyl group having 6 to 30 carbon atoms in the molecule, amine-based, imide-based, fatty acid ester-based, fatty acid amide Ashless friction modifiers such as those based on fatty acids, fatty alcohols, aliphatic alcohols, and aliphatic ethers.
- the content of each additive is preferably 0.01 to 20% by mass based on the total amount of the lubricating oil composition.
- the kinematic viscosity at 40 ° C. of the lubricating oil composition according to this embodiment is 50 mm 2 / s or less, preferably 48 mm 2 / s or less, more preferably 45 mm 2 / s or less.
- the lower limit value of the kinematic viscosity at 40 ° C. of the lubricating oil composition according to the present embodiment is not particularly limited, but is preferably 20 mm 2 / s or more, more preferably 30 mm 2 / s or more, and still more preferably.
- the lubricating oil composition according to the present embodiment has sufficient extreme pressure and wear resistance capable of reducing fuel consumption, and further can reduce the coefficient of friction between metals. It can be suitably used as gear oil for a transmission, continuously variable transmission or industrial gear system, particularly as a hypoid gear oil for driving systems of automobiles and railway vehicles.
- Examples 1 to 18 and Comparative Examples 1 to 4 As shown in Tables 1 and 2, lubricating oil compositions of Examples 1 to 18 and Comparative Examples 1 to 4 were prepared, respectively. The resulting lubricating oil composition was measured for extreme pressure properties, abrasion resistance, seizure resistance, friction resistance and oxidation stability, and the results are also shown in Tables 1 and 2.
- Base oil A-1 Poly ⁇ -olefin [Group IV, kinematic viscosity at 40 ° C .: 19 mm 2 / s, kinematic viscosity at 100 ° C .: 4.1 mm 2 / s, viscosity index: 126, pour point: ⁇ 66 ° C., flash point : 220 ° C]
- Base oil A-2 Poly ⁇ -olefin [Group IV, kinematic viscosity at 40 ° C .: 30.3 mm 2 / s, kinematic viscosity at 100 ° C .: 5.9 mm 2 / s, viscosity index: 142, pour point: ⁇ 54 ° C.
- Base oil A-3 poly ⁇ -olefin [Group IV, kinematic viscosity at 40 ° C .: 48 mm 2 / s, kinematic viscosity at 100 ° C .: 8.0 mm 2 / s, viscosity index: 139, pour point: ⁇ 48 ° C., flash point : 260 ° C]
- Base oil A-4 Poly ⁇ -olefin [Group IV, kinematic viscosity at 40 ° C .: 396 mm 2 / s, kinematic viscosity at 100 ° C .: 39 mm 2 / s, viscosity index: 147, pour point: ⁇ 36 ° C., flash point: 281 ° C]
- Base oil A-5 hydrorefined mineral oil [Group III, kinematic viscosity at 40 ° C .: 33.97 mm 2 / s, kinematic viscosity at
- kinematic viscosity 10.3 mm 2 / s, 100 ° C.
- kinematic viscosity 2.9 mm 2 / s, viscosity index: 138, flow Point: -72 ° C, flash point: 220 ° C]
- Organic molybdenum compound F-1 Molybdenum dithiocarbamate (MoDTC) [Molybdenum element conversion: 10% by mass]
- Boron-containing dispersant G-1: Boronated succinimide [in terms of boron element: 2.0% by mass, nitrogen in terms of element: 2.3% by mass, weight average molecular weight: 1000]
- Non-boron dispersant H-1 Succinimide [nitrogen element conversion: 2.3 mass%, weight average molecular weight: 1000]
- Performance additive C-1 Additive package containing phosphorus-based antiwear agent, sulfur-based extreme pressure agent, metal deactivator, friction modifier, antifoaming agent, etc.
- Viscosity modifier J-1 Copolymer of ⁇ -olefin and ⁇ , ⁇ -ethylenically unsaturated dicarboxylic acid diester [weight average molecular weight: 10,000]
- Viscosity modifier J-2 Copolymer of ⁇ -olefin and ⁇ , ⁇ -ethylenically unsaturated dicarboxylic acid diester [weight average molecular weight: 7000]
- Viscosity modifier J-3 oligomer of ethylene and ⁇ -olefin [number average molecular weight: 3700]
- the molybdenum element equivalent amount in the organic molybdenum compound, the boron element equivalent amount in the boron-containing dispersant, the phosphorus element equivalent amount and the sulfur element equivalent amount in the performance additive were determined by ICP elemental analysis.
Abstract
Description
[2]潤滑油組成物全量を基準として、2質量%以上の、α-オレフィンと重合性不飽和結合を有するエステル単量体との共重合体をさらに含有し、前記共重合体の重量平均分子量が2000~20000である、[1]に記載の潤滑油組成物。
[3]潤滑油組成物全量を基準として、ホウ素元素換算で100~500質量ppmのホウ素含有分散剤をさらに含有する、[1]又は[2]に記載の潤滑油組成物。
[4]ハイポイドギヤに用いられる、[1]~[3]のいずれかに記載の潤滑油組成物。
[5]組成物のハイポイドギヤ用潤滑油としての使用であって、前記組成物が、潤滑油基油全量を基準として、エステル系基油を0.5~70質量%含み、40℃における動粘度が18~28mm2/sである潤滑油基油と、潤滑油組成物全量を基準として、モリブデン元素換算で100~1000質量ppmの有機モリブデン化合物と、を含有し、40℃における動粘度が50mm2/s以下である、使用。
[6]組成物のハイポイドギヤ用潤滑油の製造のための使用であって、前記組成物が、潤滑油基油全量を基準として、エステル系基油を0.5~70質量%含み、40℃における動粘度が18~28mm2/sである潤滑油基油と、潤滑油組成物全量を基準として、モリブデン元素換算で100~1000質量ppmの有機モリブデン化合物と、を含有し、40℃における動粘度が50mm2/s以下である、使用。 [1] A lubricating base oil containing 0.5 to 70% by mass of an ester base oil and a kinematic viscosity at 40 ° C. of 18 to 28 mm 2 / s, based on the total amount of the lubricating base oil, and a lubricating oil composition A lubricating oil composition comprising 100 to 1000 ppm by mass of an organic molybdenum compound in terms of molybdenum element, based on the total amount, and having a kinematic viscosity at 40 ° C. of 50 mm 2 / s or less.
[2] Further containing 2% by mass or more of a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond, based on the total amount of the lubricating oil composition, and the weight average of the copolymer The lubricating oil composition according to [1], having a molecular weight of 2000 to 20000.
[3] The lubricating oil composition according to [1] or [2], further containing 100 to 500 ppm by mass of a boron-containing dispersant in terms of boron element based on the total amount of the lubricating oil composition.
[4] The lubricating oil composition according to any one of [1] to [3], which is used for a hypoid gear.
[5] Use of the composition as a hypoid gear lubricant, wherein the composition contains 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricant base oil, and has a kinematic viscosity at 40 ° C. Containing a lubricating base oil having an A of 18 to 28 mm 2 / s and an organic molybdenum compound of 100 to 1000 ppm by mass in terms of molybdenum based on the total amount of the lubricating oil composition, and a kinematic viscosity at 40 ° C. of 50 mm Use that is 2 / s or less.
[6] Use of the composition for the production of a hypoid gear lubricant, wherein the composition contains 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricant base oil, and is 40 ° C. Containing a lubricating base oil having a kinematic viscosity of 18 to 28 mm 2 / s and an organic molybdenum compound of 100 to 1000 mass ppm in terms of molybdenum element based on the total amount of the lubricating oil composition. Use wherein the viscosity is 50 mm 2 / s or less.
本実施形態の潤滑油組成物は、(A)潤滑油基油全量を基準として、エステル系基油を0.5~70質量%含み、40℃における動粘度が18~28mm2/sである潤滑油基油を含有する。 [(A) component: lubricating base oil]
The lubricating oil composition of the present embodiment comprises (A) 0.5 to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and has a kinematic viscosity at 40 ° C. of 18 to 28 mm 2 / s. Contains lubricating base oil.
(a)1価アルコールと一塩基酸とのエステル
(b)多価アルコールと一塩基酸とのエステル
(c)1価アルコールと多塩基酸とのエステル
(d)多価アルコールと多塩基酸とのエステル
(e)1価アルコール、多価アルコールとの混合物と多塩基酸との混合エステル
(f)多価アルコールと一塩基酸、多塩基酸との混合物との混合エステル
(g)1価アルコール、多価アルコールとの混合物と一塩基酸、多塩基酸との混合エステル The combination of the alcohol and the acid forming the ester is arbitrary and is not particularly limited. Examples of the ester that can be used in the present invention include the following esters. These esters may be used alone, or 2 You may combine seeds or more.
(A) ester of monohydric alcohol and monobasic acid (b) ester of polyhydric alcohol and monobasic acid (c) ester of monohydric alcohol and polybasic acid (d) polyhydric alcohol and polybasic acid (E) Mixed ester of monohydric alcohol, mixture of polyhydric alcohol and polybasic acid (f) Mixed ester of polyhydric alcohol with monobasic acid, polybasic acid (g) Monohydric alcohol , Mixtures of polyhydric alcohols with monobasic acids and polybasic acids
本実施形態に係る潤滑油組成物は、摩擦調整剤として、潤滑油組成物全量を基準として、モリブデン元素換算で100~1000質量ppmの有機モリブデン化合物を含有する。(A)成分と組み合わせることにより、金属摩擦係数を低減させ、省燃費性を高めることができる。 [(B) component: organic molybdenum compound]
The lubricating oil composition according to this embodiment contains 100 to 1000 ppm by mass of an organic molybdenum compound in terms of molybdenum element, based on the total amount of the lubricating oil composition, as a friction modifier. By combining with the component (A), the metal friction coefficient can be reduced and the fuel economy can be improved.
なお、ここでいう重量平均分子量とは、ウォーターズ社製150-C ALC/GPC装置において東ソー社製のGMHHR-M(7.8mmID×30cm)のカラムを2本直列に使用し、溶媒としてテトラヒドロフランを用い、温度23℃、流速1mL/分、試料濃度1質量%、試料注入量75μLの条件下、示差屈折率計(RI)検出器を用いて測定した標準ポリスチレン換算の重量平均分子量である。 The weight average molecular weight (Mw) of the copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond is 2000 to 20000, preferably 4000 or more, more preferably 6000 or more. Moreover, Preferably it is 15000 or less, More preferably, it is 12000 or less. By setting the weight average molecular weight to 2000 to 20000, it is possible to improve oil film retention and extreme pressure properties.
Here, the weight average molecular weight means that two columns of GHSHR-M (7.8 mm ID × 30 cm) manufactured by Tosoh Corporation are used in series in a 150-C ALC / GPC apparatus manufactured by Waters, and tetrahydrofuran is used as a solvent. It is a weight average molecular weight in terms of standard polystyrene measured using a differential refractometer (RI) detector under conditions of a temperature of 23 ° C., a flow rate of 1 mL / min, a sample concentration of 1 mass%, and a sample injection amount of 75 μL.
一般式(4)において、R10及びR11は同一でも異なっていてもよく、それぞれ炭素数40~400のアルキル基又はアルケニル基、好ましくは炭素数60~350のアルキル基又はアルケニル基を示し、ポリブテニル基であることが好ましい。qは0~4、好ましくは1~3の整数を示す。 In the general formula (3), R 9 represents an alkyl group or alkenyl group having 40 to 400 carbon atoms, preferably an alkyl group or alkenyl group having 60 to 350 carbon atoms, and p is 1 to 5, preferably 2 to 4. Indicates an integer.
In the general formula (4), R 10 and R 11 may be the same or different and each represents an alkyl group or alkenyl group having 40 to 400 carbon atoms, preferably an alkyl group or alkenyl group having 60 to 350 carbon atoms, A polybutenyl group is preferred. q represents an integer of 0 to 4, preferably 1 to 3.
表1及び表2に示すように、実施例1~18及び比較例1~4の潤滑油組成物をそれぞれ調製した。得られた潤滑油組成物について、極圧性、耐摩耗性、耐焼付き性、耐摩擦性及び酸化安定性を測定し、その結果を表1及び表2に併記した。 (Examples 1 to 18 and Comparative Examples 1 to 4)
As shown in Tables 1 and 2, lubricating oil compositions of Examples 1 to 18 and Comparative Examples 1 to 4 were prepared, respectively. The resulting lubricating oil composition was measured for extreme pressure properties, abrasion resistance, seizure resistance, friction resistance and oxidation stability, and the results are also shown in Tables 1 and 2.
基油A-1:ポリα-オレフィン[グループIV、40℃動粘度:19mm2/s、100℃動粘度:4.1mm2/s、粘度指数:126、流動点:-66℃、引火点:220℃]
基油A-2:ポリα-オレフィン[グループIV、40℃動粘度:30.3mm2/s、100℃動粘度:5.9mm2/s、粘度指数:142、流動点:<-54℃、引火点:246℃]
基油A-3:ポリα-オレフィン[グループIV、40℃動粘度:48mm2/s、100℃動粘度:8.0mm2/s、粘度指数:139、流動点:-48℃、引火点:260℃]
基油A-4:ポリα-オレフィン[グループIV、40℃動粘度:396mm2/s、100℃動粘度:39mm2/s、粘度指数:147、流動点:-36℃、引火点:281℃]
基油A-5:水素化精製鉱油[グループIII、40℃動粘度:33.97mm2/s、100℃動粘度:6.208mm2/s、粘度指数:133、硫黄分:10質量ppm未満、%CP:80.6、%CN:19.4、%CA:0]
基油B-1:二塩基酸エステル[グループV、アゼライン酸+2エチルヘキサノール、40℃動粘度:10.3mm2/s、100℃動粘度:2.9mm2/s、粘度指数:138、流動点:-72℃、引火点:220℃]
有機モリブデン化合物F-1:モリブデンジチオカーバメート(MoDTC)[モリブデン元素換算:10質量%]
ホウ素含有分散剤G-1:ホウ素化コハク酸イミド[ホウ素元素換算:2.0質量%、窒素元素換算:2.3質量%、重量平均分子量:1000]
非ホウ素分散剤H-1:コハク酸イミド[窒素元素換算:2.3質量%、重量平均分子量:1000]
性能添加剤C-1:リン系摩耗防止剤、硫黄系極圧剤、金属不活性化剤、摩擦調整剤、消泡剤等を含む添加剤パッケージ[リン元素換算:1.40質量%、硫黄元素換算:22.9質量%]
粘度調整剤J-1:α-オレフィンとα,β-エチレン性不飽和ジカルボン酸ジエステルとの共重合体[重量平均分子量:10000]
粘度調整剤J-2:α-オレフィンとα,β-エチレン性不飽和ジカルボン酸ジエステルとの共重合体[重量平均分子量:7000]
粘度調整剤J-3:エチレンとα-オレフィンとのオリゴマー[数平均分子量:3700] Details of each component shown in Table 1 and Table 2 are as follows.
Base oil A-1: Poly α-olefin [Group IV, kinematic viscosity at 40 ° C .: 19 mm 2 / s, kinematic viscosity at 100 ° C .: 4.1 mm 2 / s, viscosity index: 126, pour point: −66 ° C., flash point : 220 ° C]
Base oil A-2: Poly α-olefin [Group IV, kinematic viscosity at 40 ° C .: 30.3 mm 2 / s, kinematic viscosity at 100 ° C .: 5.9 mm 2 / s, viscosity index: 142, pour point: <−54 ° C. Flash point: 246 ° C]
Base oil A-3: poly α-olefin [Group IV, kinematic viscosity at 40 ° C .: 48 mm 2 / s, kinematic viscosity at 100 ° C .: 8.0 mm 2 / s, viscosity index: 139, pour point: −48 ° C., flash point : 260 ° C]
Base oil A-4: Poly α-olefin [Group IV, kinematic viscosity at 40 ° C .: 396 mm 2 / s, kinematic viscosity at 100 ° C .: 39 mm 2 / s, viscosity index: 147, pour point: −36 ° C., flash point: 281 ° C]
Base oil A-5: hydrorefined mineral oil [Group III, kinematic viscosity at 40 ° C .: 33.97 mm 2 / s, kinematic viscosity at 100 ° C .: 6.208 mm 2 / s, viscosity index: 133, sulfur content: less than 10 ppm by mass ,% C P : 80.6,% C N : 19.4,% C A : 0]
Base oil B-1: dibasic acid ester [Group V, azelaic acid + 2 ethylhexanol, 40 ° C. kinematic viscosity: 10.3 mm 2 / s, 100 ° C. kinematic viscosity: 2.9 mm 2 / s, viscosity index: 138, flow Point: -72 ° C, flash point: 220 ° C]
Organic molybdenum compound F-1: Molybdenum dithiocarbamate (MoDTC) [Molybdenum element conversion: 10% by mass]
Boron-containing dispersant G-1: Boronated succinimide [in terms of boron element: 2.0% by mass, nitrogen in terms of element: 2.3% by mass, weight average molecular weight: 1000]
Non-boron dispersant H-1: Succinimide [nitrogen element conversion: 2.3 mass%, weight average molecular weight: 1000]
Performance additive C-1: Additive package containing phosphorus-based antiwear agent, sulfur-based extreme pressure agent, metal deactivator, friction modifier, antifoaming agent, etc. [phosphorus element conversion: 1.40% by mass, sulfur Element conversion: 22.9% by mass]
Viscosity modifier J-1: Copolymer of α-olefin and α, β-ethylenically unsaturated dicarboxylic acid diester [weight average molecular weight: 10,000]
Viscosity modifier J-2: Copolymer of α-olefin and α, β-ethylenically unsaturated dicarboxylic acid diester [weight average molecular weight: 7000]
Viscosity modifier J-3: oligomer of ethylene and α-olefin [number average molecular weight: 3700]
ASTM D 2596に準拠し、高速四球試験機を用い、各潤滑油組成物の1800回転における最大非焼付き荷重(LNSL)を測定した。本試験においては、最大非焼付き荷重が大きいほど極圧性に優れていることを意味する。
(2)耐摩耗性試験
以下の条件により、四球試験(ASTM D4172)を行い、摩耗痕径(mm)を測定して耐摩耗性を評価した。本試験においては、摩耗痕径が小さいほど耐摩耗性に優れていることを意味する。
荷重:800N
回転数:1800rpm
温度:80℃
試験時間:30分間
(3)耐焼付き性試験
ASTM D3233に記載のファレックス試験機を用いて、焼付荷重を測定し、耐焼付き性の評価を行った。この耐焼付き性は、鋼同士の極圧性を示す。試験条件を以下に示す。本試験においては、焼付荷重が大きいほど耐焼付き性に優れていることを意味する。
温度:110℃
回転数:290rpm
(4)耐摩擦性試験
ASTM D2174に記載のブロックオンリング試験機(LFW-1)を用いて、摩擦係数を、以下の試験条件下において測定した。また、本試験では、潤滑油組成物の新油と後述する酸化安定性試験を135℃、48時間行った劣化油の両者について摩擦係数を求めた。本試験においては、摩擦係数が小さいほど耐摩擦性に優れていることを意味する。
リング:Falex S-10 Test Ring(SAE4620 Steel)
ブロック:Falex H-60 Test Block(SAE01 Steel)
油温:90℃
荷重:222-3113N
滑り速度:0.5m/s
(5)酸化安定性試験
JIS K 2514 4.(内燃機関用潤滑油酸化安定度試験方法)に準拠して以下の条件で実施し、酸価増加を測定した。本試験においては、酸価増加が小さいほど酸化安定性に優れていることを意味する。
温度:135℃
試験時間:96時間 (1) Extreme pressure test In accordance with ASTM D 2596, a maximum non-seizure load (LNSL) at 1800 revolutions of each lubricating oil composition was measured using a high-speed four-ball tester. In this test, the larger the maximum non-seizure load, the better the extreme pressure property.
(2) Abrasion resistance test A four-ball test (ASTM D4172) was conducted under the following conditions, and the wear scar diameter (mm) was measured to evaluate the abrasion resistance. In this test, the smaller the wear scar diameter, the better the wear resistance.
Load: 800N
Rotation speed: 1800rpm
Temperature: 80 ° C
Test time: 30 minutes (3) Seizure resistance test Using a Falex tester described in ASTM D3233, seizure load was measured and seizure resistance was evaluated. This seizure resistance indicates the extreme pressure between steels. Test conditions are shown below. In this test, the larger the seizure load, the better the seizure resistance.
Temperature: 110 ° C
Rotation speed: 290rpm
(4) Friction resistance test Using a block-on-ring tester (LFW-1) described in ASTM D2174, the friction coefficient was measured under the following test conditions. Moreover, in this test, the friction coefficient was calculated | required about both the new oil of a lubricating oil composition, and the deteriorated oil which performed the oxidation stability test mentioned later at 135 degreeC for 48 hours. In this test, the smaller the friction coefficient, the better the friction resistance.
Ring: Falex S-10 Test Ring (SAE4620 Steel)
Block: Falex H-60 Test Block (SAE01 Steel)
Oil temperature: 90 ° C
Load: 222-3113N
Sliding speed: 0.5m / s
(5) Oxidation stability test JIS K 2514 The acid value increase was measured under the following conditions in accordance with (Oxidation stability test method for lubricating oil for internal combustion engines). In this test, the smaller the acid value increase, the better the oxidation stability.
Temperature: 135 ° C
Test time: 96 hours
Claims (4)
- 潤滑油基油全量を基準として、エステル系基油を0.5~70質量%含み、40℃における動粘度が18~28mm2/sである潤滑油基油と、
潤滑油組成物全量を基準として、モリブデン元素換算で100~1000質量ppmの有機モリブデン化合物と、
を含有し、40℃における動粘度が50mm2/s以下である、潤滑油組成物。 A lubricating base oil containing 0.5 to 70% by mass of an ester base oil and a kinematic viscosity at 40 ° C. of 18 to 28 mm 2 / s, based on the total amount of the lubricating base oil;
Based on the total amount of the lubricating oil composition, 100 to 1000 ppm by mass of an organic molybdenum compound in terms of molybdenum element;
And a kinematic viscosity at 40 ° C. of 50 mm 2 / s or less. - 潤滑油組成物全量を基準として、2質量%以上の、α-オレフィンと重合性不飽和結合を有するエステル単量体との共重合体をさらに含有し、前記共重合体の重量平均分子量が2000~20000である、請求項1に記載の潤滑油組成物。 Further containing 2% by mass or more of a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond, based on the total amount of the lubricating oil composition, and the weight average molecular weight of the copolymer is 2000 The lubricating oil composition of claim 1, wherein the lubricating oil composition is ˜20,000.
- 潤滑油組成物全量を基準として、ホウ素元素換算で100~500質量ppmのホウ素含有分散剤をさらに含有する、請求項1又は2に記載の潤滑油組成物。 The lubricating oil composition according to claim 1 or 2, further comprising 100 to 500 ppm by mass of a boron-containing dispersant in terms of boron element based on the total amount of the lubricating oil composition.
- ハイポイドギヤに用いられる、請求項1~3のいずれか一項に記載の潤滑油組成物。 The lubricating oil composition according to any one of claims 1 to 3, which is used for a hypoid gear.
Priority Applications (5)
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JP2015542903A JP6373857B2 (en) | 2013-10-18 | 2014-10-17 | Lubricating oil composition |
MX2016004798A MX2016004798A (en) | 2013-10-18 | 2014-10-17 | Lubricating oil composition. |
US15/029,136 US20160257905A1 (en) | 2013-10-18 | 2014-10-17 | Lubricating Oil Composition |
CN201480056756.6A CN105658775B (en) | 2013-10-18 | 2014-10-17 | Lubricant oil composite |
US16/591,285 US20200032159A1 (en) | 2013-10-18 | 2019-10-02 | Lubricating oil composition |
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US15/029,136 A-371-Of-International US20160257905A1 (en) | 2013-10-18 | 2014-10-17 | Lubricating Oil Composition |
US16/591,285 Continuation US20200032159A1 (en) | 2013-10-18 | 2019-10-02 | Lubricating oil composition |
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JP (1) | JP6373857B2 (en) |
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JP7446807B2 (en) | 2019-12-19 | 2024-03-11 | Eneos株式会社 | gear oil composition |
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US20210292677A1 (en) * | 2020-03-20 | 2021-09-23 | Chevron Japan Ltd. | Low viscosity lubricating oil composition |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55157687A (en) * | 1979-05-29 | 1980-12-08 | Mitsubishi Chem Ind Ltd | Lubricating oil additive |
JPS61140672A (en) * | 1984-12-13 | 1986-06-27 | Aisin Warner Ltd | Oil dividing device in automatic speed changer |
JPS62274160A (en) * | 1986-05-23 | 1987-11-28 | Fuji Heavy Ind Ltd | Automatic transmission for vehicle |
JPH08183985A (en) * | 1994-12-28 | 1996-07-16 | Tonen Corp | Lubricating oil composition |
JPH08283762A (en) * | 1995-04-14 | 1996-10-29 | Tonen Corp | Lubricating oil composition |
JPH10195474A (en) * | 1996-12-27 | 1998-07-28 | Tonen Corp | Lubricating oil composition for internal combustion engine |
WO2005118758A1 (en) * | 2004-06-01 | 2005-12-15 | Nippon Oil Corporation | Lubricating oil composition for manual transmission |
JP2009203377A (en) * | 2008-02-28 | 2009-09-10 | Japan Energy Corp | Fuel-saving engine oil composition |
JP2010195894A (en) * | 2009-02-24 | 2010-09-09 | Jx Nippon Oil & Energy Corp | Lubricating oil composition for gear |
JP2010280819A (en) * | 2009-06-04 | 2010-12-16 | Jx Nippon Oil & Energy Corp | Lubricant composition |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152276A (en) * | 1977-11-14 | 1979-05-01 | Ethyl Corporation | Process of making olefin copolymer lubricant additives by permanganate oxidation of olefin terpolymers |
US5435928A (en) * | 1981-09-17 | 1995-07-25 | Akzo Nobel N.V. | Copolymers from α-β-unsaturated dicarboxylic acid esters, and their use |
US5763374A (en) * | 1994-08-10 | 1998-06-09 | Sanyo Chemical Industries, Ltd. | Lubricating oil compositions of reduced high-temperature high-shear viscosity |
GB9520295D0 (en) * | 1995-10-04 | 1995-12-06 | Ethyl Petroleum Additives Ltd | Friction modification of synthetic gear oils |
SG64414A1 (en) * | 1996-01-16 | 1999-04-27 | Lubrizol Corp | Lubricating compositions |
DK1180511T3 (en) * | 2000-02-25 | 2009-10-19 | Nippon Steel Corp | Process for preparation of formic acid ester or methanol and catalyst therefore |
JP2004277712A (en) * | 2003-02-27 | 2004-10-07 | Nippon Oil Corp | Base oil for four-cycle engine oil and composition |
US6846782B2 (en) * | 2003-04-04 | 2005-01-25 | The Lubrizol Corporation | Method of reducing intake valve deposits in a direct injection engine |
JP2009029968A (en) * | 2007-07-27 | 2009-02-12 | Japan Energy Corp | Transmission oil composition |
JP5731170B2 (en) * | 2010-11-19 | 2015-06-10 | Jx日鉱日石エネルギー株式会社 | Lubricating oil composition for sliding part provided with aluminum material and lubricating method |
-
2014
- 2014-10-17 JP JP2015542903A patent/JP6373857B2/en active Active
- 2014-10-17 US US15/029,136 patent/US20160257905A1/en not_active Abandoned
- 2014-10-17 CN CN201480056756.6A patent/CN105658775B/en active Active
- 2014-10-17 WO PCT/JP2014/077707 patent/WO2015056783A1/en active Application Filing
- 2014-10-17 MX MX2016004798A patent/MX2016004798A/en unknown
-
2019
- 2019-10-02 US US16/591,285 patent/US20200032159A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55157687A (en) * | 1979-05-29 | 1980-12-08 | Mitsubishi Chem Ind Ltd | Lubricating oil additive |
JPS61140672A (en) * | 1984-12-13 | 1986-06-27 | Aisin Warner Ltd | Oil dividing device in automatic speed changer |
JPS62274160A (en) * | 1986-05-23 | 1987-11-28 | Fuji Heavy Ind Ltd | Automatic transmission for vehicle |
JPH08183985A (en) * | 1994-12-28 | 1996-07-16 | Tonen Corp | Lubricating oil composition |
JPH08283762A (en) * | 1995-04-14 | 1996-10-29 | Tonen Corp | Lubricating oil composition |
JPH10195474A (en) * | 1996-12-27 | 1998-07-28 | Tonen Corp | Lubricating oil composition for internal combustion engine |
WO2005118758A1 (en) * | 2004-06-01 | 2005-12-15 | Nippon Oil Corporation | Lubricating oil composition for manual transmission |
JP2009203377A (en) * | 2008-02-28 | 2009-09-10 | Japan Energy Corp | Fuel-saving engine oil composition |
JP2010195894A (en) * | 2009-02-24 | 2010-09-09 | Jx Nippon Oil & Energy Corp | Lubricating oil composition for gear |
JP2010280819A (en) * | 2009-06-04 | 2010-12-16 | Jx Nippon Oil & Energy Corp | Lubricant composition |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7446807B2 (en) | 2019-12-19 | 2024-03-11 | Eneos株式会社 | gear oil composition |
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