WO2007132626A1 - 潤滑油組成物 - Google Patents
潤滑油組成物 Download PDFInfo
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- WO2007132626A1 WO2007132626A1 PCT/JP2007/058441 JP2007058441W WO2007132626A1 WO 2007132626 A1 WO2007132626 A1 WO 2007132626A1 JP 2007058441 W JP2007058441 W JP 2007058441W WO 2007132626 A1 WO2007132626 A1 WO 2007132626A1
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- oil
- lubricating oil
- resin
- oil composition
- ester
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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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/003—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions 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
- 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
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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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
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
- C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids 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
- C10M2207/283—Esters of polyhydroxy 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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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
- C10M2215/02—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
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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
- 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
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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
- C10M2223/045—Metal containing thio derivatives
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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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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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
- C10N2030/36—Seal compatibility, e.g. with rubber
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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
- C10N2030/40—Low content or no content compositions
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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
- C10N2030/40—Low content or no content compositions
- C10N2030/42—Phosphor free or low phosphor content compositions
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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
- C10N2030/40—Low content or no content compositions
- C10N2030/43—Sulfur free or low sulfur content compositions
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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
- C10N2040/02—Bearings
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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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/14—Composite materials or sliding materials in which lubricants are integrally molded
Definitions
- the present invention relates to a lubricating oil composition. More specifically, the present invention relates to a lubricating oil composition that is suitably used for an oil-impregnated bearing that uses a grease member together.
- Sintered oil-impregnated bearings impregnate lubricating oil into porous bodies obtained by compacting metal powder represented by copper powder, iron powder, tin powder, zinc powder, etc., and further heating and sintering. It is a type of plain bearing that is used in a self-lubricated state.
- This sintered oil-impregnated bearing is low in cost, relatively low in friction, highly accurate, and self-lubricating, so it can be used for automotive electrical components, audiovisual equipment, office equipment, household electrical equipment, and auxiliary storage devices for computers. It is widely used as a motor bearing in various parts that reach the drive unit.
- the properties required for a powerful oil-impregnated sintered oil-impregnated bearing are: good compatibility with the bearing material without causing corrosion, sludge, etc., and low evaporation loss at high temperatures.
- good compatibility with the bearing material without causing corrosion, sludge, etc.
- low evaporation loss at high temperatures In addition to being able to be used in a wide temperature range, such as fluidity is not impaired at low temperatures with good stability, it has good anti-corrosion properties, and supports recent miniaturization, low current, and long life. Good sliding resistance, low friction coefficient, and good wear resistance are also required.
- the lubricating oil for sintered oil-impregnated bearings is used without lubrication until the life of the parts used, it is required that their performance be stably maintained for a long period of time.
- the sintered oil-impregnated bearing is a porous body in which several kinds of metal powders are compacted, and the lubricating oil impregnated therein is very Therefore, it can be used stably for a long period of time without corroding the metal or generating sludge. Especially important for lubricating oils used in oil bearings.
- Patent Document 1 Japanese Patent No. 3,433,402
- Patent Document 2 JP 2001-323293 A
- Patent Document 3 Japanese Patent Laid-Open No. 2002-180078
- Lubricating oil compositions that form these sintered materials by minimizing the amount of anti-wear or extreme pressure agents that do not impair the good lubricity required for sintered oil-impregnated bearing oils. It is necessary to provide a product that can minimize the effects on various metals.
- the oil-impregnated bearing used in combination with the oil-absorbing member is an oil-impregnated bearing in which a part of the member constituting the oil-impregnated bearing or the bearing used in the vicinity of the oil-absorbing member is replaced with a metallic resin.
- Used in the vicinity of a member means an aspect using a grease member at an arbitrary position within a distance range in which the lubricating oil leaking from the bearing can spread and diffuse or scatter. Yes.
- the lubricating oil composition of the present invention is used for an oil-impregnated bearing in which a specific resin member is used in combination, when the shaft seal case is composed of a resin material, the lubricating oil composition is included in these. Even if touched, it effectively functions as a lubricant without deteriorating these resin components.
- the synthetic hydrocarbon oil as the main component is not particularly limited, and for example, poly- ⁇ -olefin, ethylene-olefin-oligomer, polybutene, alkylbenzene, alkylnaphthalene and the like are used. These synthetic hydrocarbon oils are further used by blending an ester base oil so that it is 0.1 to 30% by weight, preferably 1 to 20% by weight, more preferably 3 to 10% by weight in the composition. . If the amount of the ester base oil is less than this, the effect of adding the ester base oil as described above cannot be obtained sufficiently. On the other hand, if it is used in a proportion higher than this, there is an adverse effect such as cracking in the fat. This is not preferable because
- ester base oils include monoesters, diesters, and polyol esters (neopene chinoreglycolole estenole. Trimethylolole propane estenole, pentaerythritol oleste. , Dipentaerythritol esters, complete esters such as complex esters), aromatic esters, carbonate esters, etc., preferably dibasic acid esters.
- the dibasic acid ester is not particularly limited.
- dibasic acid esters include di (2-ethylhexyl) adipate, diisooctyl adipate, diisonoyl adipate, diisodecyl adipate, ditridecyl adipate, diisostearyl adipate, diazelineate (2-ethylhexyl), diisooctyl azelaic acid, diisonoel azelaic acid, diisodecyl azelaic acid, ditridecyl azelaic acid, diisostearyl azelaic acid, di (2-ethylhexyl) sebacate, diisooctyl sebacate, diisonoel sebacate , Diisodecyl sebacate, ditridecyl sebacate, diisostearyl sebacate, di (2-ethylhexyl)
- the base oil of the lubricating oil composition of the present invention comprises a synthetic hydrocarbon oil blended with the above-mentioned predetermined amount of ester base oil as an essential component, but as long as the object of the present invention is not impaired.
- Polyalkylene glycols, various ether ether oils, various silicone oils, various fluorine oils, and other synthetic oils, paraffinic mineral oils, naphthenic mineral oils, or base oils of these, combined with solvent refining and hydrorefining as appropriate Can be used by blending purified products
- the properties of the various lubricating base oils used in the present invention can be appropriately selected according to the use conditions that are not particularly limited, but in general, the kinematic viscosity (40 ° C) is about 2 to 1,000 mm 2 Z Seconds, preferably about 5 to 500 mm 2 Z seconds are used. Using a kinematic viscosity lower than this may cause a decrease in life such as an increase in evaporation loss or a decrease in oil film strength, and may cause wear and seizure. May cause problems such as an increase in viscous resistance and increased power consumption and torque. Preparation of lubricating oil composition Is performed by simply stirring and mixing the essential components.
- an antiwear agent In addition to the base oil, it is preferable that a minimum amount of an antiwear agent, an extreme pressure agent, and an oily agent are appropriately added to the lubricating oil composition.
- a minimum amount of anti-wear or extreme pressure formulation provides good anti-wear properties with minimal bearing corrosion that does not corrode, alter or generate sludge. It can be made.
- Antiwear agents or extreme pressure agents include alkyl phosphates, aromatic phosphate esters, halogen-containing phosphate esters, acidic phosphate esters, phosphate ester amine salts and other phosphate esters.
- a phosphate ester having at least one phenol ester group represented by tricresyl phosphate represented by the following general formula is preferably used.
- R 1 , R 2 hydrogen atom, C to C linear or branched alkyl group or alkenyl
- R 3 aralkyl group
- aromatic phosphates have the effects of being excellent in thermal stability, corroding the friction surface, and being difficult to generate sludge.
- the blending amount thereof can be minimized, and specifically 0.1 to 5 in the lubricating oil composition.
- % By weight, preferably 0.1 to 3% by weight. If it is used in a proportion higher than this, there is a possibility that corrosion of the friction surface and sludge may be generated, and it is not preferable from the viewpoint of influence on the resin.
- polyhydric alcohol fatty acid ester As the oily agent, a polyhydric alcohol fatty acid ester is used.
- polyhydric alcohol fatty acid esters include C to C of polyhydric alcohols such as glycerin, sorbitan, alkylene glycol, neopentyl glycol, trimethylolpropane, and pentaerythritol.
- Partial esters of C 3 saturated or unsaturated fatty acids are used. More specifically, Dali
- Serine esters include glycerol monolaurate, glycerol monostearate, glycerol Phosphorus monopalmitate, glycerin monooleate, glycerin dilaurate, glycerin distearate, glycerin dipalmitate, glycerine dioleate, etc.
- Sorbitan ester includes sorbitan monolaurate, sorbitan monopalmitate, sorbitan Monostearate, sorbitan monooleate, sorbitan dilaurate, sorbitan dipalmitate, sorbitan distearate, sorbitan dioleate, sorbitan tristearate, sorbitan trilaurate, sorbitan trioleate, sorbitan trioleate
- alkylene glycol esters include ethylene glycol monolaurate, ethylene glycolenomonostearate, ethylene glycolenomonomonoate, propylene.
- N-glycolanol monolaurate, propylene glycolol monostearate, propylene glycolol monostearate, etc., and neopentyl glycol esters include neopentyl glycol monolaurate, neopentyl glycolol monostearate, neopentyl glycolol monostearate, Neopentyl glycol dilaurate, neopentyl glycol distearate, neopentyl glycol dioleate, etc. are trimethylol propane esters such as trimethylol propane monolaurate, trimethylol propane monostearate, trimethylol.
- Pentaerythritol ester includes pentaerythritol monolaurate, pentaerythritol norolemonostearate, pentaerythritol noroleate, pentaerythritol dilaurate, pentaerythritol regiostearate, pentaerythritol diio Reate, dipentaerythritol monooleate and the like are used, respectively, and preferably partial esters of polyhydric alcohols with unsaturated fatty acids are used.
- oil-based agents are used in the composition at a ratio of about 0.01 to 10% by weight, preferably about 0.05 to 3% by weight.
- an effect commensurate with the blending amount cannot be obtained, which is economically disadvantageous.
- phosphate esters which are antiwear agents
- the effect of reducing friction and improving wear characteristics can be achieved.
- antiwear agents other than phosphoric acid esters include polyhydric alcohol fatty acid esters such as phosphorus compounds such as phosphites, sulfurs and disulfides, and chlorine compounds such as chlorinated paraffin and chlorinated diphenyl.
- oily agents examples include for example, fatty acids, higher alcohols, polyhydric alcohols, aliphatic esters, aliphatic amines, and fatty acid monoglycerides can be used.
- organometallic compounds such as zinc dialkyldithiophosphate (ZnDTP) and molybdenum dialkyldithiocarbamate (MoDTP) are not preferable because corrosion to bearing steel materials becomes a problem.
- a viscosity index improver may be further added to the lubricating base oil.
- the viscosity index improver for example, ethylene-propylene copolymer, styrene-isoprene copolymer, polystyrene, polyisobutylene, polyacrylate, polymethacrylate, etc. are used, and preferably, polymethacrylate is used.
- the viscosity index improver is produced by dissolving a polymer at a concentration of several tens of percent in a solvent typified by mineral oil, but preferably a synthetic oil is used as a solvent.
- a viscosity index improver using synthetic oil as a solvent By adding a viscosity index improver using synthetic oil as a solvent, compared to the case of using a conventional viscosity index improver using mineral oil as a solvent, low evaporation characteristics at high temperatures, oxidation stability, low temperature flow A lubricating oil composition having good properties can be obtained.
- the molecular weight of these polymers is not particularly limited, but the number average molecular weight Mn is within the range of about 3,000 to 1,000,000, preferably about 3,000 to 300,000, in order to sufficiently improve the viscosity index. It is desirable.
- These viscosity index improvers are used in an amount of about 30% by weight or less, preferably about 1 to 10% by weight in the composition.
- the lubricating oil composition may further contain a thickener.
- the thickener is not particularly limited, but for example, soap-type thickeners such as Li soap, Ca soap, A1 soap, composite Li soap, composite Ca soap, composite Ba soap, aliphatic urea, alicyclic urea, aromatic Examples include urea thickeners such as group urea, organic bentonite, and PTFE. Thickeners vary depending on the type, but are used in a proportion of about 0.1 to 40% by weight in the composition.
- a pour point depressant such as agents, antiwear agents other than phosphate esters, oiliness agents other than polyhydric alcohol fatty acid esters, friction modifiers, etc. be able to.
- additives used in conventional lubricating oils such as agents, antiwear agents other than phosphate esters, oiliness agents other than polyhydric alcohol fatty acid esters, friction modifiers, etc. be able to.
- Pour point depressants include, for example, di (tetraparaffin phenol) phthalate, tetrapara Finphenol condensate, alkylnaphthalene condensate, chlorinated paraffin-naphthalene condensate, alkyl styrene polystyrene, etc.
- ashless dispersants include For example, metal salts such as sulphonic acid, alkylphenol, salicylic acid and the like typified by dinol-naphthalene sulfonic acid are used as the metallic detergents.
- antioxidant for example, phenol-based ones such as 2,6-ditertiarybutyl-4-methylphenol and 4-methylenebis (2,6-ditertiarybutylphenol), alkyl ( C ⁇ C)
- Amine such as diphenylamine, triphenylamine, phenol- ⁇ -naphthylamine, alkylated phenol- ⁇ -naphthylamine, phenothiazine, alkylated phenothiazine, phosphorus-based, thio-based At least one type is used.
- the antifungal agent include fatty acids, fatty acid soaps, alkyl sulfonates, fatty acid amines, paraffin oxides, and alkyl polyoxyethylene ethers.
- the corrosion inhibitor include benzotriazole, benzimidazole, thiadiazole and the like.
- the antifoaming agent for example, dimethylpolysiloxane, polyacrylic acid, metal soap, fatty acid ester, phosphate ester and the like are used.
- Benzotriazolene metal deactivator 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Alkylated diphenenoleamine 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Lubricating oil composition (40%) ° C kinematic viscosity about 40-100mm 2 Z seconds) was prepared, and bearing corrosion test, grease stress test, wear resistance test, friction coefficient measurement, and bearing rotation test were conducted.
- oil-impregnated bearings sintered oil-impregnated bearings, oil-impregnated bushes, general rolling bearings, thrust bearings, dynamic pressure bearings, grease bearings, Bearings such as gears, reducers' gearboxes, power transmission devices such as gears, chains, and motors, vacuum pumps, valves, seal pneumatic machines, hydraulic operating parts, machine tools such as electric tools, and office work such as LBP scanner motors PC parts such as equipment parts, fan motors, spindle motors, etc., contacts, parts used in home appliance precision equipment such as VTR capstan motors, mobile phone vibration motors, metal processing equipment, transport equipment , railway, ship,
- Engine system parts such as pumps, intake and fuel system parts such as electronic control throttles, exhaust system parts such as exhaust gas circulation devices, cooling system parts
- motor bearings in home appliances and automotive auxiliary equipment such as fan motors, spindle motors, notebook personal computers for personal computers, OA equipment, general home appliances, etc.
- Small motors for automobiles fan motors for in-vehicle devices such as equipment with communication functions and DVDs, bearings for VTR capstan motors, mobile phone vibration motors, LBP scanner motors, parts for office equipment, parts for precision equipment, etc.
- the lubricating oil composition of the present invention effectively functions as a lubricant without deteriorating the resin-made member for bearings in the field, especially for oil-impregnated bearings. It also functions effectively for bearing applications in industrial equipment such as shaft seals and cases made of resin.
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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)
- Sliding-Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/227,341 US8188018B2 (en) | 2006-05-16 | 2007-04-18 | Lubricating oil composition |
JP2007547068A JP4946868B2 (ja) | 2006-05-16 | 2007-04-18 | 潤滑油組成物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-136336 | 2006-05-16 | ||
JP2006136336 | 2006-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007132626A1 true WO2007132626A1 (ja) | 2007-11-22 |
Family
ID=38693726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/058441 WO2007132626A1 (ja) | 2006-05-16 | 2007-04-18 | 潤滑油組成物 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8188018B2 (ja) |
JP (1) | JP4946868B2 (ja) |
WO (1) | WO2007132626A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009034784A1 (ja) * | 2007-09-13 | 2009-03-19 | Tsubakimoto Chain Co. | 潤滑油及び無給油チェーン |
CN101205499B (zh) * | 2007-11-28 | 2010-06-09 | 周贤言 | 一种铝镁合金拉丝润滑剂 |
JP2010180331A (ja) * | 2009-02-06 | 2010-08-19 | New Japan Chem Co Ltd | 動圧流体軸受用又は焼結含油軸受用潤滑油組成物 |
Families Citing this family (9)
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JP5684977B2 (ja) * | 2009-08-31 | 2015-03-18 | 株式会社ダイヤメット | Cu基焼結摺動部材 |
JP5925003B2 (ja) * | 2012-03-23 | 2016-05-25 | 出光興産株式会社 | 潤滑油組成物およびこれを用いた機器 |
JP6358563B2 (ja) * | 2014-11-04 | 2018-07-18 | Nokクリューバー株式会社 | 焼結含油軸受用潤滑油組成物 |
CN110770328A (zh) | 2017-06-28 | 2020-02-07 | 陶氏环球技术有限责任公司 | 低voc润滑剂组合物 |
CN109370735A (zh) * | 2018-11-29 | 2019-02-22 | 郑州正赢石化有限公司 | 一种环保助力推动液 |
US11932823B2 (en) * | 2019-04-26 | 2024-03-19 | Kyb Corporation | Lubricant composition for shock absorbers, additive for friction adjustment, lubricant additive, shock absorber and friction adjustment method for lubricant composition for shock absorbers |
DE102020111392A1 (de) * | 2020-04-27 | 2021-10-28 | Klüber Lubrication München Se & Co. Kg | Schmierstoffzusammensetzung und deren Verwendung |
JP2022104376A (ja) * | 2020-12-28 | 2022-07-08 | 日本電産株式会社 | 流体軸受用潤滑油、流体軸受、モータ及び送風機 |
CN112879528B (zh) * | 2021-01-25 | 2022-11-01 | 安徽工业大学 | 一种具有供油回油功能的自润滑齿轮及密封组件 |
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JPS56116744A (en) * | 1980-02-20 | 1981-09-12 | Janome Sewing Mach Co Ltd | Oil-containing lubricating material |
JPS6128592A (ja) * | 1983-03-09 | 1986-02-08 | ユニロイヤル,インコ−ポレ−テツド | 潤滑組成物 |
JPH06306383A (ja) * | 1993-04-27 | 1994-11-01 | Ntn Corp | 軸受封入用グリース |
JPH09125086A (ja) * | 1995-10-31 | 1997-05-13 | Idemitsu Kosan Co Ltd | 含油軸受油組成物 |
JP2000336384A (ja) * | 1999-05-27 | 2000-12-05 | Nok Kuluver Kk | 潤滑油組成物 |
JP2001172656A (ja) * | 1999-12-21 | 2001-06-26 | Nippon Steel Chem Co Ltd | 潤滑油組成物 |
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US3935116A (en) * | 1972-02-28 | 1976-01-27 | Mcdonnell Douglas Corporation | Functional fluid compositions |
US5370809A (en) * | 1991-01-18 | 1994-12-06 | Nippon Oil Co., Ltd. | Synthetic lubricating oils |
JP3433402B2 (ja) | 1995-08-03 | 2003-08-04 | 出光興産株式会社 | 含浸軸受用油組成物 |
JP4777526B2 (ja) | 2000-03-08 | 2011-09-21 | ポーライト株式会社 | 含油軸受および該軸受に用いられる潤滑油 |
JP2002180078A (ja) | 2000-12-14 | 2002-06-26 | Cosmo Sekiyu Lubricants Kk | 焼結金属軸受用潤滑油 |
JP4781543B2 (ja) * | 2001-02-22 | 2011-09-28 | 新日鐵化学株式会社 | トルクリミッタ用潤滑油及び潤滑グリース |
US7265080B2 (en) * | 2002-06-12 | 2007-09-04 | Nsk Ltd. | Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system |
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2007
- 2007-04-18 JP JP2007547068A patent/JP4946868B2/ja active Active
- 2007-04-18 US US12/227,341 patent/US8188018B2/en not_active Expired - Fee Related
- 2007-04-18 WO PCT/JP2007/058441 patent/WO2007132626A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS56116744A (en) * | 1980-02-20 | 1981-09-12 | Janome Sewing Mach Co Ltd | Oil-containing lubricating material |
JPS6128592A (ja) * | 1983-03-09 | 1986-02-08 | ユニロイヤル,インコ−ポレ−テツド | 潤滑組成物 |
JPH06306383A (ja) * | 1993-04-27 | 1994-11-01 | Ntn Corp | 軸受封入用グリース |
JPH09125086A (ja) * | 1995-10-31 | 1997-05-13 | Idemitsu Kosan Co Ltd | 含油軸受油組成物 |
JP2000336384A (ja) * | 1999-05-27 | 2000-12-05 | Nok Kuluver Kk | 潤滑油組成物 |
JP2001172656A (ja) * | 1999-12-21 | 2001-06-26 | Nippon Steel Chem Co Ltd | 潤滑油組成物 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009034784A1 (ja) * | 2007-09-13 | 2009-03-19 | Tsubakimoto Chain Co. | 潤滑油及び無給油チェーン |
JP2009067895A (ja) * | 2007-09-13 | 2009-04-02 | Tsubakimoto Chain Co | 潤滑油及び無給油チェーン |
US8795112B2 (en) | 2007-09-13 | 2014-08-05 | Tsubakimoto Chain Co. | Lubricant and oil-free chain |
CN101205499B (zh) * | 2007-11-28 | 2010-06-09 | 周贤言 | 一种铝镁合金拉丝润滑剂 |
JP2010180331A (ja) * | 2009-02-06 | 2010-08-19 | New Japan Chem Co Ltd | 動圧流体軸受用又は焼結含油軸受用潤滑油組成物 |
Also Published As
Publication number | Publication date |
---|---|
JP4946868B2 (ja) | 2012-06-06 |
JPWO2007132626A1 (ja) | 2009-09-24 |
US20090105103A1 (en) | 2009-04-23 |
US8188018B2 (en) | 2012-05-29 |
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