WO2005083043A1 - 等速ジョイント用グリース組成物 - Google Patents
等速ジョイント用グリース組成物 Download PDFInfo
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- WO2005083043A1 WO2005083043A1 PCT/JP2005/002820 JP2005002820W WO2005083043A1 WO 2005083043 A1 WO2005083043 A1 WO 2005083043A1 JP 2005002820 W JP2005002820 W JP 2005002820W WO 2005083043 A1 WO2005083043 A1 WO 2005083043A1
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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
- C10M169/02—Mixtures of base-materials and thickeners
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/106—Naphthenic fractions
- C10M2203/1065—Naphthenic fractions used as base material
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- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
- C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
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- 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
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
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- 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
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
- C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening material
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- 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
- C10M2215/16—Nitriles
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- 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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
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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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
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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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- 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
- C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2221/041—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds involving sulfurisation of macromolecular compounds, e.g. polyolefins
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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
- 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
- C10M2223/041—Triaryl phosphates
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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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/042—Metal salts thereof
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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
- 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
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- 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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- 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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- 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
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
Definitions
- the present invention relates to a grease composition for a constant velocity joint.
- a constant velocity joint is a joint used for an application such as a driving force transmission shaft from a vehicle transmission to a tire.
- the types of constant velocity joints include fixed constant velocity joints such as barfield joints, zeppa joints, and undercut free joints, and sliding constant velocity joints such as double offset set joints, tri-board joints, and cross group joints. .
- Constant velocity joints are required to have properties such as flaking resistance, seizure resistance, wear resistance, and low friction. Therefore, as greases for bevel constant velocity joints that secure these performances, additives such as molybdenum disulfide and lead compounds are added to a base grease consisting of a lubricating base oil and a lithium soap-based thickener. Compounds are mainly used (see, for example, Patent Documents 1 and 2).
- Patent Document 1 JP-A-04-304300
- Patent Document 2 Japanese Patent Application Laid-Open No. 06-57283
- a lead compound may be used as an additive in conventional grease, but it is desirable to use a lead compound as little as possible from the viewpoint of safety for the human body and the environment.
- the present invention has been made in view of such circumstances, and even without using a lead compound.
- a grease composition for constant velocity joints which can achieve high levels of flaking resistance, seizure resistance, and abrasion resistance in a well-balanced manner, and can maintain those properties sufficiently for a long period of time.
- the purpose is to:
- the grease composition for a constant velocity joint of the present invention comprises a lubricating base oil, a thickening agent, carbon black having an average particle diameter of 500 nm or less, and an organic molybdenum compound. And containing.
- the grease composition for a constant velocity joint of the present invention preferably further contains at least one selected from a sulfur type extreme pressure agent, a phosphorus type extreme pressure agent and a zinc type extreme pressure agent.
- a sulfur type extreme pressure agent preferably a sulfur type extreme pressure agent
- a phosphorus type extreme pressure agent preferably a zinc type extreme pressure agent.
- the grease composition for a constant velocity joint of the present invention is a complex of a fatty acid salt and a carbonate, and is selected from a complex in which a fatty acid is overbased with a carbonate, and an organic acid salt. It is preferable to further contain at least one kind. Thereby, the flaking resistance and the seizure resistance can be further improved.
- flaking resistance, seizure resistance and abrasion resistance can be achieved at a high level in a well-balanced manner without using a lead compound, and their properties are maintained over a long period of time.
- a grease composition for a constant velocity joint that can be sufficiently maintained is provided.
- the lubricating base oil of the grease composition for a constant velocity joint of the present invention includes mineral oil and Z or Synthetic oils can be mentioned.
- the mineral oil a mineral oil obtained by a method usually used in a lubricating oil manufacturing process in the petroleum refining industry, more specifically, a lubricating oil fraction obtained by atmospheric distillation and reduced pressure distillation of crude oil is used as a solvent.
- Naphthenic or paraffinic mineral oils that have been refined by one or more treatments such as degreasing, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrorefining, sulfuric acid washing, and clay treatment.
- the synthetic oil include polythiophenes such as polybutene, 11-otaten oligomer, and 1-decene oligomer, and hydrides thereof; ditridecyl glutarate
- diesters such as di-2-ethylhexyl adipate, diisodecyl adipate, ditridecyl adipate, and di-3-ethylhexyl sebacate; trimethylolpropane caprylate, trimethylonolepropaneperanoregonate, pentaerythritolone 2-ethinolehexanoate
- a polyol ester such as pentaerythritol pelargonate; an alkyl naphthalene; an alkyl benzene, a polyoxyalkylene glycolonole; a polyphenyl ether ether; a dialkyl diphenyl ether; a silicone oil; or a mixture thereof.
- Kinematic Viscosity at 100 ° C of the lubricating base oil is preferably 2-40 mm 2 / s, more preferably 3- 20mm 2 / s. Further, the viscosity index of the lubricating base oil is preferably 90 or more, more preferably 100 or more.
- one of the above lubricating base oils may be used alone, or two or more of them may be used in combination. It is preferable to use a naphthenic mineral oil from the viewpoint of excellent wear properties.
- the boots used for constant velocity joints are made of rubber materials such as chloroprene rubber (CR) and chlorinated polyethylene rubber (CM) and resin materials such as polyester-based thermoplastic elastomer (TPE).
- CR chloroprene rubber
- CM chlorinated polyethylene rubber
- TPE polyester-based thermoplastic elastomer
- naphthenic mineral oils also have a favorable compatibility with strong boot materials.
- compatibility with the boot material means a property capable of sufficiently preventing the grease from leaking due to a decrease in the strength of the boot, a breakage or the like, which has a small adverse effect on the boot material.
- naphthenic mineral oil means a lubricating oil fraction obtained by refining a naphthenic base crude oil containing a large amount of naphthenes. Specifically, solvent removal, solvent extraction, hydrocracking, and solvent dewaxing are performed on lubricating oil fractions obtained by normal and reduced pressure distillation of naphthenic base crude oil. Lubricating oil fractions obtained by refining one kind alone, such as catalytic dewaxing, hydrorefining, washing with sulfuric acid, and clay treatment, or by appropriately combining two or more kinds of refining means.
- the properties of the naphthenic mineral oil used in the present invention are not particularly limited.
- the reason 0 / oCn is preferably 35 70, more preferably 40-65, and even more preferably 45-60.
- the% Cp of the naphthenic mineral oil is preferably 2055, more preferably 2550, and more preferably 3045.
- 0 / oCn and% Cp are each measured in accordance with “Standard Test Method for Calculation Distribution and Structural Group Analysis of Petroleum Oils by the n_d_M Method” specified in ASTM-D-3238. % ⁇ 11 and% ⁇ .
- the anilin point of the naphthenic mineral oil is preferably 90 ° C or lower, more preferably 85 ° C or lower, further preferably 80 ° C or lower.
- the aniline point means an aniline point measured in accordance with JIS K 2256 "Testing method for petroleum product aniline point and mixed aniline point".
- the pour point of the naphthenic mineral oil is preferably -20 ° C or lower, more preferably 130 ° C or lower, and further preferably -40 ° C or lower.
- the pour point means a pour point measured in accordance with JIS K 2269 "Pour point of crude oil and petroleum products and cloud point of petroleum products".
- the sulfur content of the naphthenic mineral oil is preferably 1500 mass ppm or less, more preferably 800 mass ppm or less, based on the total amount of the naphthenic mineral oil, from the viewpoint of reducing the adverse effect on thermal stability. It is preferably at most 500 ppm by mass, more preferably at most 100 ppm by mass, particularly preferably at most 50 ppm by mass.
- the sulfur content here means the sulfur content measured in accordance with JIS K 2541, "Crude oil and petroleum products-Test method for sulfur content", Annex "Inductively coupled plasma emission method".
- the components include sulfur disulfide, mercaptan, alkyl sulfide, alkyl disulfide, thiophane, thiophene, sulfonic acid and the like.
- the nitrogen content of the naphthenic mineral oil is preferably 500 mass ppm or less, more preferably 200 mass p, based on the total amount of the naphthenic mineral oil, from the viewpoint of reducing the adverse effect on thermal stability.
- pm or less more preferably 150 mass ppm or less, more preferably 100 mass ppm or less, particularly preferably 50 mass ppm or less.
- the nitrogen content here refers to the nitrogen content measured according to the microcoulometric titration method specified in JIS K 2609 "Crude oil and petroleum products-Nitrogen content test method", and the nitrogen content includes ammonia.
- inorganic ammonia compounds such as ammonium sulfide, ammonium carbonate, and ammonium chloride, and heterocyclic compounds such as pyridine, quinoline, and naphthenic base.
- the viscosity index of the naphthenic mineral oil is preferably ⁇ 10 or more, more preferably 0 or more, still more preferably 10 or more, still more preferably 20 or more, and particularly preferably 30 or more, from the viewpoint of low-temperature fluidity. is there.
- the viscosity index means a viscosity index calculated in accordance with JIS K 2283 "Crude oil and petroleum products-Kinematic viscosity test method and viscosity index calculation method".
- the content of the naphthenic mineral oil is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, based on the total amount of the composition. It is. If the content of the naphthenic mineral oil is less than 3% by mass, the effect of the addition thereof on the flaking resistance, seizure resistance, abrasion resistance and compatibility with the boot material tends to be insufficient. . If the content of the naphthenic mineral oil exceeds 40% by mass, the effects of improving the flaking resistance, seizure resistance and abrasion resistance can be obtained, but the compatibility with the boot material tends to decrease.
- Examples of the thickener include soap-based thickeners such as metal soaps and composite metal soaps, bentone, silica gel, and urea-based thickeners (such as urea compounds, urea urethane compounds, and urethane compounds).
- Any thickening agent such as the non-soap thickening agent of (1), can be used. From the viewpoint of heat resistance, a urea compound, a urea 'urethane compound, a urethane compound or a mixture thereof is preferred.
- soap-based thickener examples include sodium soap, calcium soap, aluminum soap, lithium soap and the like.
- urea thickening agent examples include urea compounds such as diurea compounds, triurea compounds, tetraurea compounds, and polyurea compounds (excluding diurea compounds, triurea compounds, and tetraurea conjugates); Urethanes such as compounds and diurethane compounds And a mixture thereof.
- a diurea compound, a perylene 'urethane compound, a diurethane compound or a mixture thereof is preferable.
- Preferred examples of the urea thickening agent include a compound represented by the following general formula (1).
- the compound represented by the general formula (1) includes a diurea compound, a perrea 'urethane compound, and a diurethane compound.
- R 1 represents a divalent organic group, preferably a divalent hydrocarbon group.
- the divalent hydrocarbon group include a straight-chain or branched alkylene group, a straight-chain or branched alkenylene group, a cycloalkylene group, an arylene group, and an alkylarylene group. And arylalkylene groups.
- the carbon number of the divalent organic group represented by R 1 is preferably from 6 to 20, more preferably from 6 to 15.
- Preferred examples of the divalent organic group represented by R 1 include an ethylene group, a 2,2-dimethyl-4-methylhexylene group, and a group represented by the following formulas (2) to (11). Among them, groups represented by the formulas (3) and (5) are preferable.
- a and B may be the same or different and each represents a group represented by one NHR 2 , -NR 4 or -OR 5 .
- R 2 , R 3 , R 4 and R 5 are each a monovalent organic group which may be the same or different, and preferably represents a monovalent hydrocarbon group having 6 to 20 carbon atoms. .
- R 2 , R 3 Examples of the monovalent hydrocarbon group having 6 to 20 carbon atoms represented by R 5 include a straight-chain or branched alkyl group, a straight-chain or branched alkenyl group, a cycloalkyl group, and an alkylcycloalkyl group. Groups, aryl groups, alkylaryl groups, arylalkyl groups and the like.
- the compound represented by the general formula (1) is represented by, for example, a diisocyanate represented by OCN—R 1 —NCO and R 2 NH, R 3 R 4 NH or R 5 ⁇ H.
- a diisocyanate represented by OCN—R 1 —NCO and R 2 NH, R 3 R 4 NH or R 5 ⁇ H is represented by, for example, a diisocyanate represented by OCN—R 1 —NCO and R 2 NH, R 3 R 4 NH or R 5 ⁇ H.
- R 2 , R 3 , R 4 , and R 5 are each represented by the general formula (1) R 2 , R 3 ,
- R 1 represents a divalent organic group
- R 2 represents a monovalent organic group, and is equivalent to R 1 and R 2 described above.
- the content of 2-Zouch dosage is the total amount of the composition, preferably 2% by mass or more, more preferably 5 mass% or more.
- the content of the thickening agent is preferably 30% by mass or less, more preferably 20% by mass or less, based on the total amount of the composition. If the content of the thickener exceeds 30% by mass, the grease composition becomes excessively hard, and it becomes difficult to obtain sufficient lubrication performance.
- the grease composition for a constant velocity joint of the present invention contains, as essential components, carbon black having an average particle diameter of 500 nm or less and an organic molybdenum compound in addition to the lubricating base oil and the thickener. contains.
- carbon black is obtained by instantaneously carbonizing raw material hydrocarbons (oil, gas, etc.) at high temperature (for example, 300 to 1800 ° C, preferably 800 to 1800 ° C) for several ms.
- Black particles with a diameter of about 3 to 500 nm are distinguished from graphite.
- the graphite crystal structure is hexagonal plate-like flat (or trigonal polymorphic).
- carbon black is composed of unit particles that are a kind of amorphous carbon in which microcrystals are intricately collected, and the microcrystals are aromatic planar molecules having an average diameter of 20-30A. Have a turbostratic structure consisting of several layers.
- carbon black unit particles are linked together in a chain to form an aggregate (structure), and an acidic functional group may be present on the surface of the particles. If graphite is used instead of carbon black, the anti-flaking property, seizure resistance and abrasion resistance will be insufficient.
- the average particle size of the carbon black used in the present invention is 500 nm or less, and preferably 100 nm or less. If the average particle size of the carbon black exceeds 500 nm, the flaking resistance, seizure resistance and abrasion resistance become insufficient.
- the lower limit of the average particle diameter is not particularly limited, but is usually at least lOnm, preferably at least 15 nm, from the viewpoint of ease of production and availability.
- the average particle diameter is an average particle diameter (average diameter) of the above-described unit particles of carbon black, and means an average value measured by an electron microscope.
- the method for producing carbon black used in the present invention is not particularly limited as long as the average particle diameter is within the above range.
- Typical manufacturing methods include a furnace method, an acetylene method, a lamp method, a thermal method, a channel method, and the like.
- the content of carbon black is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, based on the total amount of the composition. If the content of carbon black is less than the above lower limit, the effect of improving the flaking resistance, seizure resistance and abrasion resistance by the addition of carbon black tends to be insufficient. Further, the content of carbon black is preferably 15% by mass or less, more preferably 10% by mass or less, based on the total amount of the composition. If the content of carbon black exceeds the above upper limit, the effects of improving the flaking resistance, seizure resistance and abrasion resistance corresponding to the content tend not to be obtained.
- Examples of the organic molybdenum compound used in the present invention include derivatives of phosphoric acid or thiophosphoric acid ester represented by the following general formula (13), and dithiocarbamic acid esters represented by the following general formula (14) Derivatives of [0043]
- R 6 may be the same or different and each represents a hydrocarbon group having 1 or more carbon atoms, and X is the same or different and each represents an oxygen atom or A, b, and c each represent an integer of 1 to 6;
- the hydrocarbon group represented by R 6 in the general formulas (13) and (14) includes, for example,
- alkyl group examples include a methynole group, an ethyl group, a propyl group (including all branched isomers), a butyl group (including all branched isomers), a pentyl group (including all branched isomers).
- cycloalkyl group examples include a cyclopentyl group, a cyclohexyl group, and a cycloheptyl group.
- alkylcycloalkyl group examples include a methylcyclopentyl group (including all substituted isomers), an ethylcyclopentyl group (including all substituted isomers), and a dimethylcyclopentyl group (including all substituted isomers). ), A propylcyclopentyl group (including all branched and substituted isomers), a methylethylcyclopentyl group (including all substituted isomers), and a trimethylcyclopentyl group (including all substituted isomers).
- Butylcyclopentyl group (including all branched isomers and substituted isomers), methylpropyl cyclopentyl group (including all branched isomers and substituted isomers), getylcyclopentyl group (including all branched isomers and substituted isomers) Dimethylethylcyclopentyl group (including all substituted isomers), methylcyclohexyl group (including all substituted isomers) ), An ethylcyclohexyl group (including all substituted isomers), a dimethylcyclohexyl group (including all substituted isomers), and a propylbicyclohexyl group (all branched and substituted isomers) ), Methylethylcyclohexyl group (including all substituted isomers), trimethylcyclohexyl group (including all substituted isomers), butylcyclohexyl group (including all branched isomers and substituted iso
- Butylcycloheptyl group (including all branched isomers and substituted isomers), methylpropylcycloheptyl group (including all branched isomers and substituted isomers), Getylcycloheptyl group (including all substituted isomers) ), A dimethylethylcycloheptyl group (including all substituted isomers), and the like.
- aryl group examples include a phenyl group and a naphthyl group.
- alkylaryl group examples include a tolyl group (including all substituted isomers), a xylyl group (including all substituted isomers), and an ethylphenyl group (including all substituted isomers).
- arylalkyl group examples include a benzyl group, a phenethyl group, a phenylpropyl group (including all branched isomers), and a phenylbutyl group (including all branched isomers).
- Specific examples of the compounds represented by the general formulas (13) and (14) include molybdenum phosphate, molybdenum thiophosphate, molybdenum dithiophosphate, and molybdenum dithiocarbamate.
- Derivatives of dithiophosphoric acid ester represented by the general formula (14) are usually phosphoric acid esters, thiophosphoric acid esters, dithiophosphoric acid esters and inorganic molybdenum compounds (molybdenum trioxide, molybdic acid or salts thereof). Is a compound obtained by reacting with a sulfur source, if necessary.
- the compound obtained by the above reaction is usually a mixture.
- the most typical compounds include compounds represented by the following formulas (15) and (16).
- the organic molybdenum compound either one of the compounds represented by the above general formulas (13) and (14) may be used alone, or both may be used in combination. From the viewpoint of properties, it is preferable to use the compound represented by the general formula (14).
- the content of the organic molybdenum compound is preferably at least 0.1% by mass, more preferably at least 0.1% by mass, based on the total amount of the composition. Is 0.5% by mass or more.
- the content of the organic molybdenum compound is less than 0.1% by mass, the grease does not have sufficient flaking, seizure and abrasion resistance; the upper limit is 20% by mass, preferably 10% by mass. It is. If it exceeds 20% by mass, flaking resistance, seizure resistance and abrasion resistance can be obtained in proportion to the amount added. Respectively, which is not preferred.
- the grease composition for a constant velocity joint of the present invention may be composed of the above lubricating base oil, a thickening agent, carbon black having an average particle diameter of 500 nm or less, and an organic molybdenum compound. And at least one selected from a sulfur-based extreme pressure agent, a phosphorus-based extreme pressure agent and a zinc-based extreme pressure agent.
- sulfur-based extreme pressure agent examples include dihydrocarbyl polysulfide, sulfide ester, sulfide mineral oil, thiazole compound and thiadiazole compound.
- Dihydrocarbyl polysulfide is a sulfur-based compound generally called polysulfide or olefin sulfide, and is specifically represented by the following general formula (17).
- R 7 and R 8 may be the same or different and each may be a linear or branched alkyl group having 3 to 20 carbon atoms, an aryl group having 620 carbon atoms, or a carbon number.
- alkyl group represented by R 7 and R 7 specifically, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, Chain or branched pentyl, straight or branched hexyl, straight or branched heptyl, straight or branched octyl, straight or branched nonyl, straight or branched decyl, straight Chain or branched pendecyl group, straight or branched dodecinole group, straight or branched tridecyl group, straight or branched tetradecinole group, straight or branched pentadecyl group, straight or branched hexadecyl group And straight-chain or branched heptadecynole groups, straight-chain or branched octadecyl groups, straight-chain or branched nonadecyl groups
- aryl groups represented by R 7 and R 8 include a phenyl group and a naphthyl group.
- R 7 and R 8 are propylene respectively, 1-butene or derived from isobutylene a carbon number 3-18 Anorekiru group, Ariru group having a carbon number of 6-8, an alkyl ⁇ aryl group of carbon number 7-8 Or an arylalkyl group having 7 to 8 carbon atoms.
- preferred alkyl groups include an isopropyl group, a branched hexyl group derived from a propylene dimer (including all branched isomers), and a propylene trimer. Introduced branched nonyl group (including all branched isomers), branched dodecyl group derived from propylene tetramer (including all branched isomers), propylene pentamer Branched pentadecyl group (including all branched isomers), branched octadecinole group derived from propylene hexamer (including all branched isomers), sec-butyl group, tert -Butyl group, 1-butene dimer force Induced branched octyl group (including all branched isomers), isobutylene dimer derived branched octyl group (all branched Isomers), 1-butene trimeric power Branche
- a preferable aryl group is a fluoro group.
- Preferred alkylaryl groups include tolyl groups (including all structural isomers), ethylphenyl groups (including all structural isomers), and xylyl groups (including all structural isomers). Can be.
- Preferred arylalkyl groups include a benzyl group and a phenethyl group (including all isomers).
- R 7 and R 8 are each independently excellent in flaking resistance and seizure resistance. Therefore, each of R 7 and R 8 is independently a branched alkyl group having 3 to 18 carbon atoms from which ethylene or propylene power is also induced. It is particularly preferable that the ethylene or propylene power is a branched alkyl group having 6 to 15 carbon atoms.
- the dihydrocarbyl polysulfide those having an arbitrary sulfur content can be used.
- the sulfur content is usually 10 to 55 mass%. %, Preferably 20-50% by mass.
- sulfurized ester examples include animal and vegetable fats such as beef tallow, lard, fish fat, rapeseed oil, and soybean oil; unsaturated fatty acids (oleic acid, linoleic acid, and fatty acids extracted from the above animal and vegetable fats and oils). And the like, and unsaturated alcohols obtained by reacting various alcohols; and those obtained by sulfurizing a mixture thereof by an arbitrary method.
- animal and vegetable fats such as beef tallow, lard, fish fat, rapeseed oil, and soybean oil
- unsaturated fatty acids oleic acid, linoleic acid, and fatty acids extracted from the above animal and vegetable fats and oils.
- unsaturated alcohols obtained by reacting various alcohols; and those obtained by sulfurizing a mixture thereof by an arbitrary method.
- the sulfide ester those having an arbitrary sulfur content can be used.
- the sulfur content is usually 2 to 40% by mass, preferably 5 to 35% by mass. It is preferable to use one having a mass%.
- Sulfurized mineral oil refers to one obtained by dissolving elemental sulfur in mineral oil.
- Mineral oil used in the present invention Although not particularly limited, specific examples include the mineral oil-based lubricating base oils mentioned above as examples of the lubricating base oils.
- the elemental sulfur may be in any form such as lump, powder, molten liquid, etc., but powder or molten liquid must be dissolved in base oil efficiently. Is preferred.
- the use of molten liquid elemental sulfur has the advantage of being able to perform the dissolution work in a very short time since the liquids are mixed with each other, but is handled at a temperature higher than the melting point of elemental sulfur. It is necessary to use special equipment such as heating equipment, and handling in a high-temperature atmosphere is not always easy.
- powdered elemental sulfur is particularly preferable because it is inexpensive, easy to handle, and has a sufficiently short dissolution time.
- the sulfur content in the sulfide mineral oil is not particularly limited, but is usually preferably from 0.05 to 1.0% by mass, more preferably from 0.1 to 0.5% by mass, based on the total amount of the sulfide mineral oil. It is.
- R 9 and R 1Q each represent a hydrogen atom, a hydrocarbon group having 113 carbon atoms or an amino group
- R 11 represents a hydrogen atom or an alkyl group having 114 carbon atoms.
- d and e represent integers from 0 to 3.
- R 1Q in the above general formula (19) represents a hydrogen atom, a hydrocarbon group having 110 to 130 carbon atoms or an amino group as described above.
- 18 charcoal A hydrogen atom which is preferably a hydrogen group, or a hydrocarbon group having 11 to 12 carbon atoms, is more preferable.
- R 11 in the general formula (19) represents a hydrogen atom or an alkyl group having 14 carbon atoms as described above. Force R 11 is a hydrogen atom or an alkyl group having 13 carbon atoms. Is more preferably a hydrogen atom or a hydrocarbon group having 12 to 12 carbon atoms.
- e in the above general formula (19) is a force S, e representing an integer of 0 to 3 as described above, and e is preferably 02.
- benzothiazole compounds include benzothiazole, 2_mercaptobenzothiazole, 2_ (hexyldithio) benzothiazole, 2- (octyldithio) benzothiazole, 2_ (decyldithio) benzothiazole, and 2- (dodecyldithio) benzo.
- the thiadiazole compounds include a 1,3,4-thiadiazole compound represented by the following general formula (20), a 1,2,4_thiadiazole compound represented by the following general formula (21), and a thiadiazole compound represented by the following general formula (21):
- the 1,4,5-thiadiazole derivative represented by the formula (22) is preferably used.
- R 12 , R 13 , R 14 , R 13 , and R 1 ′ may be the same or different.
- c, d, e, f, g, and h may be the same or different and each represents an integer of 0-8 ]
- R 13 , R M , R 15 , R 16 and R 17 each represent a hydrogen atom or a hydrocarbon group having 120 carbon atoms as described above.
- R 12, R 1 3, R 14, R 15, R 16 and R 17 number is Konomashigu hydrogen atom or a carbon which is each a hydrogen atom or a hydrocarbon having a carbon number of 1 one 18 1 More preferably, it is one to twelve hydrocarbon groups.
- d, e, f, g and h in the above general formulas (7) and (9) are each an integer of 03 as described above. Forces c, d, e, f, g and h are respectively It is preferably an integer between 0 and 2.
- thiadiazole compound examples include 2,5_bis (n-hexyldithio) _1,3,4-thiadiazole and 2,5_bis (n-octyldithio) -1,3,4_thiadiazole 2,5_bis (n_nonyldithio) _1,3,4-thiadiazole, 2,5_bis (1,1,3,3-tetramethylbutyldithio) _1,3,4-thiadiazole, 3,5 _Bis (n-hexyldithio) _1,2,4-thiadiazole, 3,5-bis (n-octyldithio) _1,2,4-thiadiazole, 3,5_bis (nnonyldithio2,4-thiadiazole, 3 , 5-bis (1,1,3,3-tetramethylbutyldithio) _1,2,4-thiadiazole, 4,5_bis (n-hexyldithio) _
- the sulfur-based extreme pressure agent used in the present invention is more preferably dihydrocarbyl polysulfide or sulfide ester among the above from the viewpoints of flaking resistance, seizure resistance and abrasion resistance. preferable.
- sulfur-based extreme pressure agent When such a sulfur-based extreme pressure agent is contained in the grease composition for a constant velocity joint of the present invention, its content is not particularly limited, but is preferably 0.05 to 20% by mass based on the composition. , More preferably 0.115% by mass, even more preferably 0.5-10% by mass.
- the phosphorus-based additive is preferably at least one selected from a phosphoric acid ester, an acidic phosphoric acid ester, an amine salt of an acidic phosphoric acid ester, a phosphite, and a phosphorothionate.
- phosphoric acid esters, acidic phosphoric acid esters, amine salts of acidic phosphoric acid esters, and phosphites are phosphoric acid or phosphorous acid and alkanols and polyether alcohols. Or a derivative thereof.
- Examples of the phosphoric acid ester include tributyl phosphate, tripentyl phosphate, trihexyl phosphate, triheptyl phosphate, trioctyl phosphate, trinonyl phosphate, tridecyl phosphate, tridecyl phosphate, tridodecyl phosphate, and tritriphosphate.
- Examples of the acidic phosphate include monobutyl acid phosphate, monopentyl acid phosphate, monohexyl acid phosphate, monoheptyl acid phosphate, monooctyl acid phosphate, monononyl acid phosphate, monodecyl acid phosphate, and monoundecyl acid phosphate.
- Examples of the amine salt of the acidic phosphoric acid ester include the above-mentioned acidic phosphoric acid ester such as methylamine, ethynoleamine, propylamine, butynoleamine, pentylamine, hexylamine, heptynoleamine, octylamine, dimethylamine, getylamine, dipropylamine, dibutyamine.
- Salts with amines such as noreamine, dipentylamine, dihexylamine, diheptylamine, dioctylamine, trimethylamine, triethylamine, trippropinoleamine, tributylamine, tripentylamine, trihexynoleamine, triheptylamine, trioctylamine, etc.
- Chlorinated phosphates such as tris'dichloropropylphosphate, tris'chloroethylphosphate, tris.chlorophenylphosphate, polyoxyalkylene.bis [di (chloroalkyl)] phosphate, etc .;
- phosphites examples include dibutyl phosphite, dipentyl phosphite, dihexynole phosphite, diheptinole phosphite, dioctinole phosphite, dinoninole phosphite, didecyl phosphite, didecyl phosphite, and didecyl phosphite.
- Phite didodecyl phosphite, dioleyl phosphite, diphenyl phosphite, dicresyl phosphite, tributyl phosphite, tripentyl phosphite, trihexyl phosphite, triheptyl phosphite, trioctyl phosphite, trinonyl phosphite Phyto, tridecyl phosphite, tridecyl phosphite, tridodecyl phosphite, trioleyl phosphite, triphenyl phosphite, tritaredinole phosphite and the like. Also, a mixture of these can be used.
- R 1S , R 19 and ° may be the same or different and each represents a hydrocarbon group having 124 carbon atoms
- hydrocarbon group having 1 to 24 carbon atoms represented by R 18 , R 19, and R 2 ° include an anolequinole group, a cycloalkyl group, an alkenyl group, an alkylcycloalkyl group, an aryl group, and an annale group. Quinolylene groups, arylalkyl groups and the like.
- alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group.
- These alkyl groups may be linear or branched.
- Examples of the cycloalkyl group include a cycloalkyl group having 5 to 7 carbon atoms such as a cyclopentyl group, a cyclohexyl group, and a cycloheptyl group.
- Examples of the alkylcycloalkyl group include a methylcyclopentyl group, a dimethylcyclopentyl group, a methylethylcyclopentyl group, a getylcyclopentyl group, a methylcyclohexyl group, a dimethylcyclohexyl group, and a methylethylcyclohexyl group.
- alkenyl group examples include, for example, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an otathenyl group, a nonenyl group, a decenyl group, a pendecenyl group, a dodecenyl group, a tridecenyl group, a tetradecenyl group, and a pentadecenyl group
- alkenyl groups such as hexadecenyl group, heptadecenyl group and octadecenyl group (these alkenyl groups may be linear or branched and the position of the double bond is arbitrary).
- Examples of the aryl group include aryl groups such as a phenyl group and a naphthyl group.
- Examples of the alkylaryl group include, for example, a tolyl group, a xylyl group, an ethyl phenyl group, a propyl phenyl group, a butyl phenyl group, a pentyl phenyl group, a hexyl phenyl group, a heptyl phenyl group, an octyl phenyl group, a noyl phenyl group, and a decyl phenyl group.
- Alkylaryl groups having 7 to 18 carbon atoms such as phenyl, undecylphenyl, dodecylphenyl, etc.
- Alkyl groups may be straight-chain or branched, and the position of substitution on the aryl group is arbitrary. Is).
- arylalkyl group examples include an arylalkyl group having 712 carbon atoms such as a benzyl group, a phenylethyl group, a phenylpropynole group, a phenylbutyl group, a phenylpentyl group, and a phenylhexyl group. It can be chained or branched. Can be
- the hydrocarbon group having 1 to 24 carbon atoms represented by R 18 , R 19 and R 2 ° is preferably an alkyl group, an aryl group, or an alkylaryl group having 4 carbon atoms.
- An alkyl group having 18 carbon atoms, an alkylaryl group having 7 to 24 carbon atoms, and a phenyl group are more preferable.
- phosphorothionate represented by the general formula (23) include tributylphosphorothionate, tripentylphosphorothionate, trihexylphosphorothionate, and triheptylphosphorothionate.
- Trioctylphosphorothionate Trioctylphosphorothionate, trinonylphosphorothionate, tridecylphosphorothionate, tridandecylphosphorothionate, tridodecylphosphorothionate, tritridecylphosphorothionate, tritetradecylphosphoronate Thionate, tripentadecylphosphorothionate, trihexadecylphosphorothionate, triheptadecylphosphorothionate, trioctadecylphosphorothionate, trioleylphosphorothionate, triphenylphosphorothionate Tricresylphosphorothionate, trixylenylphosphorothionate, cresyldiphenylphosphorothionate, xylenyldiphenylphosphorothionate, tris (n-butylpyteurinole) phosphorothionate, tris ( Iso
- the content thereof is not particularly limited, but is preferably 0.01 to 15% by mass, based on the composition. more preferably 0.1 05 10 mass 0/0, more preferably from 0.5 1 5 mass 0/0.
- Examples of the zinc-based extreme pressure agent include a zinc dithiophosphate compound represented by the following general formula (24), a zinc dithiophosphate compound represented by the following general formula (25), and a zinc dithiophosphate compound represented by the following general formula (25).
- Examples include a zinc salt of a phosphorus-containing compound represented by the formula (26) or (27).
- R 25 , R 26 , IT 7 and R 28 may be the same or different and each represents a hydrocarbon group having 1 or more carbon atoms.
- Y represents an oxygen atom or a sulfur atom, at least two of the three Ys are oxygen atoms, and R 29 , R 3 ° and R 31 may be the same or different.
- Y represents an oxygen atom or a sulfur atom, at least three of the four Ys are oxygen atoms, and R 32 , R 33 and R 34 may be the same or different and each represents hydrogen.
- R 21 in (25) As the hydrocarbon group represented by R 28, for example, an alkyl group having a carbon number of 1 one 24, a cycloalkyl group having a carbon number of 5-7 An alkylcycloalkyl group having 6 to 11 carbon atoms, an arylene group having 618 carbon atoms, an alkylaryl group having 724 carbon atoms, and an arylalkyl group having 7 to 12 carbon atoms.
- alkyl group examples include a methynole group, an ethyl group, a propyl group (including all branched isomers), a butyl group (including all branched isomers), and a pentyl group.
- cycloalkyl group examples include a cyclopentyl group, a cyclohexyl group, and a cycloheptyl group.
- alkylcycloalkyl group examples include a methylcyclopentyl group (including all substituted isomers), an ethylcyclopentyl group (including all substituted isomers), and a dimethylcyclopentyl group (including all substituted isomers).
- Examples of the aryl group include a phenyl group and a naphthyl group.
- alkylaryl group examples include a tolyl group (including all substituted isomers), a xylyl group (including all substituted isomers), an ethylphenyl group (including all substituted isomers), and propyl.
- Phenyl group (including all branched isomers and substituted isomers), methylethylphenyl group (including all substituted isomers), trimethylphenyl group (including all substituted isomers), butylphenyl group (including all substituted isomers) , Methylpropylphenyl group (including all branched and substituted isomers), getylphenyl group (including all substituted isomers), dimethylethyl Phenyl group (including all substituted isomers), pentylphenyl group (including all branched and substituted isomers), hexylfurnyl group (including all branched isomers and substituted isomers) ), Heptyl-Feni Group (including all branched and substituted isomers), octylphenyl group (including all branched and substituted isomers), nonylphenyl group (including all branched and substituted isomers) , Decylpheny
- arylalkyl group examples include a benzyl group, a phenethyl group, a phenylpropyl group (including all branched isomers), a phenylbutyl group (including all branched isomers), and the like.
- alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a pendecyl group, a dodecyl group and a tridecyl group.
- alkyl groups such as tetradecyl, pentadecyl, hexadecyl, heptadecinole and octadecinole (these alkyl groups may be linear or branched).
- Examples of the cycloalkyl group include cycloalkyl groups having 5 to 7 carbon atoms, such as a cyclopentyl group, a cyclohexyl group, and a cycloheptyl group.
- Examples of the alkylcycloalkyl group include, for example, methylcyclopentyl group, dimethylcyclopentyl group, methylethylcyclopentyl group, getylcyclopentyl group, methylcyclohexyl group, dimethylcyclohexyl group, methylethylcyclohexyl group.
- Alkyl group having 6 to 11 carbon atoms such as a group, getyl cyclohexyl group, methylcycloheptyl group, dimethylcycloheptyl group, methylethylenocycloheptyl group, and getylcycloheptyl group.
- the substitution position is also arbitrary).
- alkenyl group examples include a butyr group, a pentenyl group, a hexenyl group, Alkenyl groups such as heptenyl, otatul, nonenyl, decenyl, pendecenyl, dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadenyl, octadecenyl and the like (these alkenyl groups are straight-chain And the position of the double bond is also arbitrary).
- Examples of the aryl group include an aryl group such as a phenyl group and a naphthyl group.
- Examples of the alkylaryl group include, for example, a tolyl group, a xylyl group, an ethylphenyl group, a propylphenyl group, a butylphenyl group, a pentylphenyl group, a hexylphenyl group, a heptylphenyl group, an octylphenyl group, a noylphenyl group, a decylphenyl group, Alkyl aryl groups having 7 to 18 carbon atoms, such as benzyl and dodecyl phenyl groups (the alkyl group may be linear or branched, and the position of substitution on the aryl group is arbitrary). .
- arylalkyl group examples include arylalkyl groups having 7 to 12 carbon atoms such as benzyl, phenylethyl, phenylethanol, phenylbutyl, phenylpentyl, and phenylhexyl. Groups (these alkyl groups may be linear or branched).
- R 29 - a hydrocarbon group having a carbon number of 1 one 30 represented by R 34 is a it is preferred instrument more preferably Ariru for the alkyl group or the number of carbon atoms 6 24 1 one 30 carbon atoms An alkyl group having 3 to 18 carbon atoms, more preferably an alkyl group having 412 carbon atoms.
- R 29 , R 3 ° and R 31 may be the same or different and each represent a hydrogen atom or the above-mentioned hydrocarbon group, and of R 29 , R 3 ° and R 31 , It is more preferable that one or two of the above-mentioned hydrocarbon groups are the above-mentioned hydrocarbon groups, and it is further preferable that two of them are the above-mentioned hydrocarbon groups.
- R 32, R 33 and R 34 represent a Yogu each a hydrogen atom or the hydrocarbon group which may be the same or different, of R 32, R 33 and R 34, 1 one 3 is It is more preferable that one or two of the above-mentioned hydrocarbon groups are the above-mentioned hydrocarbon groups. It is further preferable that two of the above-mentioned hydrocarbon groups are the above-mentioned hydrocarbon groups.
- the phosphorus compound represented by the general formula (26) at least two of the three Ys need to be oxygen atoms. It is preferable that all Ys are oxygen atoms. [0107] In the phosphorus compound represented by the general formula (27), four (
- Examples of the phosphorus compound represented by the general formula (26) include phosphorous acid and monothiophosphorous acid; the above-mentioned phosphoric acid monoester and monothiophosphorus having one hydrocarbon group having 1 to 30 carbon atoms.
- phosphite monoester and phosphite diester are more preferable, and phosphite diester is more preferable.
- Examples of the phosphorus compound represented by the general formula (27) include phosphoric acid and monothiophosphoric acid; the above-mentioned phosphoric acid monoester and monothiophosphoric acid monoester having one hydrocarbon group having 110 to 130 carbon atoms.
- Phosphoric acid diesters and monothiophosphoric acid diesters having two hydrocarbon groups each having 1 to 30 carbon atoms; phosphoric acid triesters and monothiophosphoric acid triesters each having three hydrocarbon groups each having 1 to 30 carbon atoms; And mixtures thereof.
- phosphoric diesters which are preferably phosphoric monoesters and phosphoric diesters, are more preferred.
- the zinc salt of the phosphorus-containing compound represented by the general formula (26) or (27) has a different structure depending on the number of OH groups or SH groups in the phosphorus compound, and therefore the structure is not limited. Limited. For example, when 1 mol of zinc oxide is reacted with 2 mol of phosphoric diester (having one OH group), a compound having a structure represented by the following formula (28) is considered to be obtained as a main component. (R in the formula represents a hydrocarbon group having 110 to 130 carbon atoms).
- the grease composition for constant velocity joints of the present invention is a complex of a fatty acid salt and a carbonate, wherein the fatty acid is overbased with the carbonate (hereinafter, referred to as a ⁇ carbonate dispersed overbased ), And at least one selected from organic acid salts.
- the carbonate-dispersed overbased fatty acid salt is obtained by dispersing a carbonate in a fatty acid salt to make the fatty acid salt overbased with a carbonate.
- the fatty acid may be linear or branched.
- the fatty acid may be saturated or unsaturated, but is preferably an unsaturated fatty acid from the viewpoint of solubility in a base oil.
- the number of unsaturated bonds is not particularly limited, but is preferably one.
- the carbon number of the fatty acid is not particularly limited, but those having 10 to 25 carbon atoms are preferable from the viewpoint of the dispersibility of the carbonate fine particles.
- Preferred examples of the fatty acid used in the carbonate-dispersed overbased fatty acid salt of the present invention include oleic acid (having 18 carbon atoms and one unsaturated bond), eric acid (having 22 carbon atoms, and an unsaturated bond). A single bond), linoleic acid (18 carbon atoms, 2 unsaturated bonds), and linolenic acid (18 carbon atoms, 3 unsaturated bonds). Of these, oleic acid is more preferable.
- Examples of the fatty acid salt constituting the carbonate-dispersed overbased fatty acid salt include the above-mentioned alkali metal salts and alkaline earth metal salts of fatty acids. More preferably, it is a calcium salt, which is preferably an earth metal salt.
- Examples of the carbonate constituting the carbonate-dispersed overbased fatty acid salt include an alkali metal salt and an alkaline earth metal salt, and more specifically, a lithium salt, a sodium salt, and a potassium salt. More preferably, it is a calcium salt, which is preferably an alkaline earth metal salt, such as a magnesium salt, a calcium salt, or a sodium salt.
- the carbonate is present as fine particles.
- the average particle size in this case is not particularly limited, but is preferably 50 nm or more, because more sufficient anti-flaking performance and seizure resistance can be imparted. Is more preferably 300 nm or more, still more preferably 500 nm or more, still more preferably lOOOnm or more, particularly preferably 2000 nm or more.
- the average particle size means an average particle size measured by a dynamic light scattering type particle size distribution system and calculated by a Marquadt method.
- the mixing ratio between the fatty acid salt and the carbonate is not particularly limited, but from the viewpoint of further improving the flaking resistance and the seizure resistance, the fatty acid salt is 100% by weight.
- the amount of the carbonate is preferably at least 10 parts by weight, more preferably at least 20 parts by weight, further preferably at least 30 parts by weight, more preferably at least 40 parts by weight, particularly preferably at least 50 parts by weight with respect to parts by weight.
- the carbonate is preferably 1,000 parts by weight or less, more preferably 500 parts by weight or less, still more preferably 400 parts by weight or less, based on 100 parts by weight of the fatty acid salt. It is more preferably at most 300 parts by weight, particularly preferably at most 200 parts by weight.
- the method of producing the carbonate-dispersed overbased fatty acid salt is optional.
- the above-described fatty acid salt is dissolved in a carrier oil, and an alkali metal base, an alkaline earth metal base, or the like is used. It can be produced by blowing carbon dioxide gas into the existing system.
- the carrier oil those listed as the lubricating base oil of the grease composition for a constant velocity joint of the present invention can be used.
- the alkali metal and alkaline earth metal groups include hydroxides and oxides, and more specifically, calcium hydroxide, calcium oxide, magnesium oxide, barium oxide and the like.
- the carbonate-dispersed overbased fatty acid salt of the present invention is usually obtained in the state of being dissolved in the above-mentioned carrier oil.
- the above-mentioned fatty acid salt and carbonate are preferable.
- the carrier oil is preferably at least 10 parts by weight based on 100 parts by weight of the total amount with the salt. It is more preferably at least 15 parts by weight, further preferably at least 20 parts by weight, particularly preferably at least 25 parts by weight.
- the carrier oil is preferably at most 1,000 parts by weight, more preferably at most 700 parts by weight, still more preferably at most 500 parts by weight, particularly preferably at most 500 parts by weight, based on 100 parts by weight of the total amount of the above fatty acid salts and carbonates. Is 400 parts by weight or less.
- methanol may be added to the reaction system in order to promote the production of carbonate fine particles.
- an overbased mixture of a fatty acid salt and another organic acid salt such as a sulfonic acid salt may be used.
- the content of the carbonate-dispersed overbased fatty acid salt in the present invention is preferably 0.05% by mass, more preferably 0.1% by mass, based on the total amount of the composition. If the content of the carbonate-dispersed overbased fatty acid salt is less than 0.05% by mass, the effect of improving the flaking resistance and seizure resistance due to the addition of the carbonate-dispersed overbased fatty acid salt is not sufficient. It tends to be sufficient. Further, the content of the carbonate-dispersed overbased fatty acid salt is preferably 10% by mass or less, more preferably 5.0% by mass, based on the total amount of the composition.
- the content of the carbonate-dispersed overbased fatty acid salt exceeds 10% by mass, the effect of improving the flaking resistance and seizure resistance that is commensurate with the added amount tends not to be obtained.
- the content of the carbonate-dispersed overbased fatty acid salt is a total amount of the content of the fatty acid salt and the content of the carbonate, excluding the above-mentioned carrier oil.
- the base number of the carbonate-dispersed overbased fatty acid salt of the present invention is not particularly limited. However, since the base value is more excellent in flaking resistance and seizure resistance, it may be dissolved in a carrier oil. It is usually at least 50 mgK ⁇ H / g, preferably at least 100 mgK ⁇ H / g, more preferably at least 150 mgK ⁇ H / g, even more preferably at least 200 mgKOH / g, most preferably at least 250 mgK ⁇ H / g.
- the upper limit is not particularly limited, but is generally 60 OmgKOHZg or less.
- the base number is the base number (mgK ⁇ H / g) measured by the hydrochloric acid method in accordance with Section 6 of JIS K 2501 “Testing Methods for Neutralization of Petroleum Products and Lubricating Oils”. Say.
- organic acid salt sulfonate, phenate, salicylate, and a mixture thereof are preferably used.
- Positive components of these organic acid salts include sodium and potassium.
- Alkali metals such as platinum; alkaline earth metals such as magnesium, calcium and barium
- alkylamine having an alkyl group having 13 to 13 carbon atoms (monomethylamine, dimethylamine, trimethylamine, monoethylamine, getylamine, triethylamine, monopropylamine, dipropylamine, tripropylamine, etc.); Alkanolamine having an alcohol group of 3 (monomethanolamine, dimethanolamine, trimethanolamine, monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine Amins such as propanolamine).
- calcium which is preferably an alkali metal or an alkaline earth metal, is particularly preferred.
- the positive component of the organic acid salt is an alkali metal or an alkaline earth metal, higher lubricity tends to be obtained.
- the base number of the organic acid salt is preferably from 50 to 500 mgKOHZg, more preferably from 100 to 450 mgKOHZg. If the base number of the organic acid salt is less than 100 mgKOHZg, the effect of improving the lubricity by adding the organic acid salt tends to be insufficient.On the other hand, the organic acid salt whose base number exceeds 500 mgKOH / g is usually Each is not preferred because it is very difficult to manufacture and difficult to obtain.
- the base number is the base number by the perchloric acid method [mgK ⁇ H] measured in accordance with 7. of JIS K 2501 “Petroleum products and lubricating oils-Neutralization number test method”. / g].
- the content of the organic acid salt is preferably 0.1 to 30% by mass, more preferably 0.5 to 25% by mass, and still more preferably 11 to 30% by mass, based on the total amount of the composition. 20% by mass.
- the content of the organic acid salt is less than the lower limit, the effect of improving the flaking resistance and seizure resistance due to the addition of the organic acid salt tends to be insufficient. There is a tendency that the stability of the grease composition is reduced and precipitates are easily generated.
- alkali metal salts, alkaline earth metal salts, amine salts, and mixtures thereof of alkyl aromatic sulfonic acids obtained by sulfonating alkyl aromatic compounds having a molecular weight of 100 to 1500, preferably 200 to 700 are used. it can.
- the alkyl aromatic sulfonic acid referred to here is generally a sulfonated alkyl aromatic compound of a lubricating oil fraction of a mineral oil, or a so-called mahoganic acid which is a by-product of white oil production.
- alkylbenzene having a linear or branched alkyl group obtained by by-producing alkylbenzene from a polyolefin into benzene, or by-product from an alkylbenzene production plant used as a raw material for detergents, or dinoelnaph Synthetic sulfonic acids, such as sulfonated alkylnaphthalenes such as tarene, and the like.
- the above alkyl aromatic sulfonic acid and a base of an alkali metal such as an oxide or hydroxide of an alkali metal
- a base of an alkaline earth metal such as an oxide or a hydroxide of an alkaline earth metal
- a neutral (normal salt) sulfonate obtained by reacting the above-mentioned amines (ammonia, alkylamine alkanol, noramine, etc.); a neutral (normal salt) sulfonate; an excess alkali metal base, alkali A so-called basic sulfonate obtained by heating an earth metal base or amine in the presence of water; a neutral (normal salt) sulfonate in the presence of carbon dioxide gas to form an alkali metal base or alkaline earth metal base Or so-called carbonate overbased (ultrabasic) sulfonates obtained by reacting with neutral amines; Genus bases, alkaline earth metal bases or amines and boric acid or boric
- Neutral phenate a so-called basic phenate obtained by heating a neutral phenate and an excess of an alkali metal base, an alkaline earth metal base or an amine in the presence of water;
- the so-called carbonate overbased (super base) obtained by reacting ⁇ nate with an alkali metal base, alkaline earth metal base or amine.
- Neutral phenates are reacted with alkali metal bases, alkaline earth metal bases or amines and boric acid compounds such as boric acid or boric anhydride, or carbonate overbased (ultrabasic).
- boric acid compound such as boric acid or boric anhydride
- salicylates include, in the presence or absence of elemental sulfur, an alkylsalicylic acid having 112 alkyl groups having 412 carbon atoms and an alkali metal base (alkali base).
- alkali base alkali metal base
- Metal oxides and hydroxides alkaline earth metal bases (alkaline earth metal oxides and hydroxides) or the above-mentioned amines (ammonia, alkylamine phenolanolamine, etc.).
- Neutral salicylate obtained by the reaction a so-called basic salicylate obtained by heating the neutral salicylate and excess alkali metal base, alkaline earth metal base or amine in the presence of water; carbon dioxide gas So-called carbonic acid obtained by reacting a neutral salicylate with an alkali metal base, an alkaline earth metal base or amine in the presence of Overbased (ultrabasic) salicylates; neutral salicylates are reacted with alkali metal bases, alkaline earth metal bases or amines and boric acid compounds such as boric acid or boric anhydride, or carbonate salts.
- a so-called overbased (ultrabasic) salicylate produced by reacting a basic (ultrabasic) metal salicylate with a boric acid compound such as boric acid or boric anhydride; and Mixtures of these are mentioned.
- the degree of miscibility of the grease composition for a constant velocity joint of the present invention is preferably 220 or more, more preferably 265 or more. If the degree of mixing is less than 220, the grease becomes excessively hard, and the effect of the present invention tends not to be sufficiently exerted. Further, the degree of mixing is preferably 430 or less, more preferably 400 or less. When the degree of miscibility exceeds 430, the grease tends to excessively soften, making it difficult to seal the grease composition into the constant velocity joint.
- the degree of mixing is the degree of consistency immediately after mixing and reciprocating 60 times, which is measured by 5.3 “Consistency test method” of JIS K2220 “Grease”.
- the grease composition for a constant velocity joint of the present invention may be a solid lubricant, an antioxidant, an oil agent, a rust preventive, if necessary, for further improving the performance, as long as the properties are not impaired. , A viscosity index improver and the like.
- Specific examples of the solid lubricant include boron nitride, fluorinated graphite, polytetrafluoroethylene, molybdenum disulfide, antimony sulfide, and alkali (earth) metal borate.
- antioxidants include phenolic compounds such as 2,6_di-t_butylphenol and 2,6_di-t-butylphenol-tarezol; dialkyldiphenylamine, phenyl- Examples include amine compounds such as ⁇ -naphthylamine and ⁇ -alkylphenyl-hynaphthylamine; sulfur compounds; phenothiazine compounds.
- oil agent examples include amines such as laurylamine, myristylamine, palmitylamine, stearylamine and oleylamine; lauryl alcohol, myristinoleanolone, palmityl alcohol, stearyl alcohol, oleyl alcohol and the like.
- Higher alcohols such as lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid
- fatty acid esters such as methyl laurate, methyl myristate, methyl palmitate, methyl stearate, and methyl oleate
- Amides such as laurylamide, myristylamide, palmitylamide, stearylamide and oleylamide; oils and fats.
- rust inhibitor examples include metal soaps; polyhydric alcohol partial esters such as sorbitan fatty acid esters; amines; phosphoric acid;
- viscosity index improver examples include polymethacrylate, polyisobutylene, and polystyrene.
- a lubricating base oil for example, a lubricating base oil, a thickening agent, carbon black having an average particle diameter of 500 nm or less, an organic molybdenum compound, and if necessary, Other additives can be mixed, stirred, and passed through a roll mill or the like to achieve the desired strength.
- the lubricating base oil is preliminarily added with a raw material component of the lubricating agent, melted, and stirred and mixed to prepare the thickening agent in the lubricating base oil. It can also be produced by mixing and stirring carbon black, an organic molybdenum compound, and other additives as necessary, and passing the mixture through a roll mill or the like.
- the grease composition for a constant velocity joint of the present invention having the above-mentioned structure is excellent in flaking resistance, seizure resistance, abrasion resistance, and low frictional properties, and improves the performance of the constant velocity joint. And a longer life can be achieved at a high level.
- the constant velocity joint to which the durose composition for a constant velocity joint of the present invention is applied.
- fixed type constant velocity joints such as a bar field joint, a Zeppa joint, and an undercut free joint.
- a slide type constant velocity joint such as a double offset joint, a tri-board joint, and a cross group joint.
- diphenylmethane 4,4′-diisocyanate was used as the lubricating base oil using a solvent-refined paraffinic mineral oil having a kinematic viscosity at 40 ° C. of 126 mm 2 / s.
- Heat-dissolved in base oil to which various amines and alcohols shown in Table 13 were heated and dissolved in the same base oil were added.
- various additives shown in Table 1 were added to the formed gel substance, and the mixture was stirred and passed through a roll mill to obtain a grease composition.
- Example 7 lithium 12-hydroxystearate was added to the lubricating base oil instead of diisocyanate, alcohol and amine as a thickener. Next, various additives shown in Table 2 were added, and the mixture was stirred and passed through a roll mill to obtain a grease composition.
- dihydrocarbyl polysulfite was polyisobutylene sulfide (sulfur content: 45% by mass)
- sulfide oil was lard sulfide (sulfur content: 30% by mass)
- antioxidant Represents an amine-based antioxidant (fluoro ⁇ -naphthylamine), respectively.
- Examples 8-11 solvent-refined paraffinic mineral oil and hydrorefined naphthenic mineral oil shown in Table 4 were used as lubricating base oils, and diphenylmethane 4,4'-diisocyanate was used as the base oil. Then, various amines and alcohols shown in Table 5 were heated and dissolved in the same base oil. Next, the various additives shown in Table 5 were added to the produced gel-like substance, and the mixture was stirred and passed through a roll mill to obtain a grease composition having the composition shown in Table 5.
- dihydrocarbyl polysulfite means polyisobutylene sulfide (sulfur content ratio 45% by mass).
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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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05719395.5A EP1721957B1 (en) | 2004-02-26 | 2005-02-22 | Grease composition for constant velocity joint |
US10/590,775 US20070179066A1 (en) | 2004-02-26 | 2005-02-22 | Grease composition for constant velocity joint |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004052202A JP4520756B2 (ja) | 2004-02-26 | 2004-02-26 | 等速ジョイント用グリース組成物 |
JP2004-052202 | 2004-02-26 |
Publications (1)
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WO2005083043A1 true WO2005083043A1 (ja) | 2005-09-09 |
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PCT/JP2005/002820 WO2005083043A1 (ja) | 2004-02-26 | 2005-02-22 | 等速ジョイント用グリース組成物 |
Country Status (4)
Country | Link |
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US (1) | US20070179066A1 (ja) |
EP (1) | EP1721957B1 (ja) |
JP (1) | JP4520756B2 (ja) |
WO (1) | WO2005083043A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100035776A1 (en) * | 2006-09-08 | 2010-02-11 | Takahiro Ozaki | Lubricating grease composition |
US7943557B2 (en) * | 2005-06-07 | 2011-05-17 | Ntn Corporation | Grease for hub bearing and hub bearing |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US7820600B2 (en) * | 2005-06-03 | 2010-10-26 | Exxonmobil Research And Engineering Company | Lubricant and method for improving air release using ashless detergents |
US7851418B2 (en) * | 2005-06-03 | 2010-12-14 | Exxonmobil Research And Engineering Company | Ashless detergents and formulated lubricating oil containing same |
JP2007224134A (ja) * | 2006-02-23 | 2007-09-06 | Nippon Koyu Ltd | 難燃性潤滑グリース組成物 |
EP2119762A4 (en) * | 2007-02-27 | 2011-10-26 | Ntn Toyo Bearing Co Ltd | LUBRICATION SYSTEM AND UNIVERSAL JOINTS WITH THE SYSTEM |
FR2949786B1 (fr) * | 2009-09-10 | 2013-07-05 | Total Raffinage Marketing | Composition de graisse. |
JP5399203B2 (ja) * | 2009-10-22 | 2014-01-29 | Ntn株式会社 | 固定型等速自在継手 |
WO2013015413A1 (ja) * | 2011-07-28 | 2013-01-31 | 日本精工株式会社 | Ev,hev駆動モータ軸受用グリース組成物及びev,hev駆動モータ軸受 |
US8796189B2 (en) | 2011-10-14 | 2014-08-05 | Chevron U.S.A. Inc. | Gear lubricant |
JP5973290B2 (ja) * | 2012-08-28 | 2016-08-23 | Ntn株式会社 | 等速ジョイント用グリース組成物およびそれを封入した等速ジョイント |
JP6292569B2 (ja) * | 2013-12-04 | 2018-03-14 | 協同油脂株式会社 | 等速ジョイント用グリース組成物及びそのグリース組成物を封入した等速ジョイント |
CN111100736B (zh) * | 2018-10-29 | 2022-09-27 | 中国石油化工股份有限公司 | 润滑脂组合物及其制备方法 |
US20220112440A1 (en) * | 2019-01-22 | 2022-04-14 | Toyota Jidosha Kabushiki Kaisha | Lubricant for vehicle having vehicle body charged by driving |
JP2021188021A (ja) * | 2020-06-05 | 2021-12-13 | 株式会社ジェイテクト | グリース組成物および転がり軸受 |
US20230323240A1 (en) * | 2020-08-12 | 2023-10-12 | Jtekt Corporation | Grease composition, and rolling bearing |
WO2024004777A1 (ja) * | 2022-06-29 | 2024-01-04 | 株式会社Adeka | グリース組成物 |
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JP2002195277A (ja) * | 2000-10-19 | 2002-07-10 | Nsk Ltd | 転がり軸受 |
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JP2003155491A (ja) * | 2001-11-21 | 2003-05-30 | Matsumura Sekiyu Kenkyusho:Kk | グリース組成物 |
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JP2799634B2 (ja) * | 1991-03-07 | 1998-09-21 | 日本石油株式会社 | 等速ジョイント用グリース組成物 |
JPH08209171A (ja) * | 1994-11-15 | 1996-08-13 | Lubrizol Corp:The | チオカーバメートおよびリン含有エステルを含有する潤滑剤および流体 |
JP3988897B2 (ja) * | 1996-06-07 | 2007-10-10 | 協同油脂株式会社 | 等速ジョイント用グリース組成物 |
US6432889B1 (en) * | 1998-07-15 | 2002-08-13 | Nippon Mitsubishi Oil Corporation | Grease composition |
JP2005105238A (ja) * | 2003-01-06 | 2005-04-21 | Nsk Ltd | 自動車電装補機用グリース組成物及び前記グリース組成物を封入した転がり軸受 |
-
2004
- 2004-02-26 JP JP2004052202A patent/JP4520756B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-22 US US10/590,775 patent/US20070179066A1/en not_active Abandoned
- 2005-02-22 EP EP05719395.5A patent/EP1721957B1/en not_active Not-in-force
- 2005-02-22 WO PCT/JP2005/002820 patent/WO2005083043A1/ja active Application Filing
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JP2002195277A (ja) * | 2000-10-19 | 2002-07-10 | Nsk Ltd | 転がり軸受 |
JP2002250351A (ja) * | 2001-02-20 | 2002-09-06 | Nsk Ltd | 転がり軸受 |
JP2003155491A (ja) * | 2001-11-21 | 2003-05-30 | Matsumura Sekiyu Kenkyusho:Kk | グリース組成物 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7943557B2 (en) * | 2005-06-07 | 2011-05-17 | Ntn Corporation | Grease for hub bearing and hub bearing |
US20100035776A1 (en) * | 2006-09-08 | 2010-02-11 | Takahiro Ozaki | Lubricating grease composition |
Also Published As
Publication number | Publication date |
---|---|
EP1721957B1 (en) | 2013-04-10 |
US20070179066A1 (en) | 2007-08-02 |
JP2005239898A (ja) | 2005-09-08 |
EP1721957A4 (en) | 2010-04-21 |
JP4520756B2 (ja) | 2010-08-11 |
EP1721957A1 (en) | 2006-11-15 |
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