WO2005093020A1 - Composition d’huile de lubrification pour machines et équipements industriels - Google Patents

Composition d’huile de lubrification pour machines et équipements industriels Download PDF

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Publication number
WO2005093020A1
WO2005093020A1 PCT/JP2005/006410 JP2005006410W WO2005093020A1 WO 2005093020 A1 WO2005093020 A1 WO 2005093020A1 JP 2005006410 W JP2005006410 W JP 2005006410W WO 2005093020 A1 WO2005093020 A1 WO 2005093020A1
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Prior art keywords
group
carbon atoms
branched
component
acid
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Application number
PCT/JP2005/006410
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English (en)
Japanese (ja)
Inventor
Katsuya Takigawa
Yukiharu Beppu
Sinichi Mitsumoto
Masahiro Hata
Eiji Akiyama
Original Assignee
Nippon Oil Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2004106670A external-priority patent/JP2005290182A/ja
Priority claimed from JP2004108502A external-priority patent/JP4565612B2/ja
Priority claimed from JP2004132155A external-priority patent/JP4582767B2/ja
Priority claimed from JP2004106674A external-priority patent/JP2005290183A/ja
Priority claimed from JP2004108503A external-priority patent/JP2005290235A/ja
Priority claimed from JP2004106664A external-priority patent/JP2005290181A/ja
Priority claimed from JP2004108180A external-priority patent/JP4565611B2/ja
Priority claimed from JP2004108185A external-priority patent/JP2005290227A/ja
Priority claimed from JP2004108178A external-priority patent/JP4641381B2/ja
Priority to US10/594,290 priority Critical patent/US20080058235A1/en
Priority to EP05727597A priority patent/EP1734103A4/fr
Application filed by Nippon Oil Corporation filed Critical Nippon Oil Corporation
Publication of WO2005093020A1 publication Critical patent/WO2005093020A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • 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
    • 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
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
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    • 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
    • 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
    • C10M2215/08—Amides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • 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
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbasedsulfonic acid salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • 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
    • 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
    • C10N2030/04—Detergent property or dispersant property
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
    • 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
    • C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C—CHEMISTRY; METALLURGY
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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
    • C10N2040/02—Bearings
    • C—CHEMISTRY; METALLURGY
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C—CHEMISTRY; METALLURGY
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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
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
    • 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
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling

Definitions

  • the present invention relates to a novel lubricating composition for industrial machinery, and in particular, has excellent lubricating properties such as abrasion resistance, extreme pressure properties, and frictional properties, and various properties required according to the state of use of the industrial machinery. More particularly, it relates to a gear oil composition, a lubricating oil composition for a paper machine, a lubricating oil composition for a sliding guide surface, and a hydraulic oil.
  • gear oil compositions have excellent sludge resistance and extreme pressure properties
  • lubricating oil compositions for paper machines have excellent sludge resistance and extreme pressure properties
  • lubricating oil compositions for sliding guide surfaces have friction properties and stick slip. It has excellent prevention properties, and hydraulic fluids have excellent sludge control properties, wear resistance and friction properties.
  • Patent Document 3 proposes a lubricating oil for a paper machine that is simultaneously excellent in heat resistance, abrasion resistance and corrosion resistance, but is not always satisfactory.
  • lubricating oils for sliding guide surfaces are required to have low friction (small coefficient of friction) and high anti-stick-slip properties between metal surfaces.
  • lubricating oil compositions combining sulfur compounds, esters and fatty acids (see, for example, Patent Document 4), lubricating oil compositions combining sulfur compounds and amine salts of phosphorus compounds (See, for example, Patent Document 5).
  • Non-zinc hydraulic fluids containing non-zinc antiwear agents such as aromatic phosphates, phosphites and their amine salts, thiophosphates, and 3-dithiophosphorylated propionic acid compounds Its use has been proposed (see, for example, Patent Documents 9 to 11).
  • oily agents such as polyhydric alcohol full esters or partial esters or fatty acid amides are used in combination with amine antioxidants, phenol antioxidants and A hydraulic fluid mixed with a predetermined base oil together with a phosphate ester has been disclosed. See pp. 12).
  • R 1 is an alkyl group having 6 to 30 carbon atoms or an alkyl group having 6 to 30 carbon atoms.
  • Arqueni R, R 2 is an alkyl group having 1 to 4 carbon atoms
  • Z is a residue of a dihydric or higher polyhydric alcohol excluding the hydroxyl group
  • m is an integer of 1 or more
  • m ' is an integer of 0 or more
  • n is an integer of 1 to 4.
  • R 4 -C 6 H 4 0- ( 5) (wherein, R 4 represents an alkyl group or hydrogen having 1 to 20 carbon atoms.)
  • a fourth aspect of the present invention is the first lubricating composition of the present invention as a lubricating oil composition for a sliding guide surface, wherein the additive is any one selected from components (A) to (C). It is.
  • the above-mentioned lubricating oil composition for sliding guide surfaces is excellent in both frictional properties and stick-slip prevention properties.
  • FIG. 1 is a schematic configuration diagram illustrating a friction coefficient measurement system used in an example of a lubricating oil composition for a sliding guide surface according to an embodiment of the present invention.
  • FIG. 2 is a schematic configuration diagram showing a stick-slip prevention evaluation apparatus used in an example of a lubricating oil composition for a sliding guide surface according to an embodiment of the present invention.
  • FIG. 4 is a graph showing the separation of each layer in an evaluation test of the separation property with respect to a water-soluble cutting fluid in an embodiment of one lubricating oil composition for a sliding guide surface according to the embodiment of the present invention. It is explanatory drawing which shows a separation state.
  • FIG. 5 is a diagram for explaining the arrangement and operation of the disc and the pole in an S RV (micro reciprocating friction) test in an example of one hydraulic fluid composition according to the embodiment of the present invention.
  • At least one selected from mineral oils, fats and oils, and synthetic oils is used as a base oil.
  • the mineral oil used here is solvent dewatering, solvent extraction, hydrocracking, solvent dewaxing, contact dewaxing, and lubricating oil fractions obtained by atmospheric and vacuum distillation of crude oil.
  • Examples thereof include paraffinic or naphthenic mineral oils obtained by applying one or more kinds of purification means such as hydrorefining, sulfuric acid washing, and clay treatment in an appropriate combination.
  • fats and oils examples include beef tallow, lard, sunflower oil, soybean oil, rapeseed oil, rice bran oil, coconut oil, palm oil, palm kernel oil, and hydrogenated products thereof.
  • Examples of synthetic oils include poly- ⁇ -olefin (ethylene-propylene copolymer, polybutene, 1-octene oligomer, 1-decene oligomer, and hydrides thereof), alkylbenzene, alkylnaphthalene, monoester (Butyl stearate, octyl laurate), diesters (ditridecyl glulate, di-2-ethylhexyl adipate, diisodecyl adipate, ditridecyl adipate, di-2-ethylhexyl sepate, etc.), polyesters (trimellitic acid) Esters), polyol esters (trimethylolpropane caprylate, trimethylolpropane pelargonate, pentaerythritol 1 ⁇ 2-ru-2-ethylhexanoate, penju erythritol perargonate, etc.), polyoxya
  • base oils preferred are mineral oils, polyQ! -Refin, polyol esters, and polyoxyalkylenedaricols.
  • the above-described base oils may be used alone or in combination of two or more.
  • the kinematic viscosity of these base oils is arbitrary not particularly limited, 4 the lower limit of 0 ° C kinematic viscosity, 1 0 mm 2 Z s or more from the standpoint of pitting resistance, preferably 2 0 mm 2 / s or more, more preferably 40 mm 2 / s or more, most preferably 60 mm 2 Zs or more, and the upper limit of is 100 mm 2 Z from the viewpoint that friction loss due to stirring resistance is small. s or less, preferably 5 0 0 0 MMV s, more preferably not more than 1 0 0 0 mm 2 Z s .
  • R 5 and R 6 may be the same or different and each represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, and 7 represents an alkylene group having 1 to 20 carbon atoms.
  • R 8 represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, and X 1 , X 2 , X 3 and X 4 may be the same or different and each represent an oxygen atom or a sulfur atom.
  • R 5 and R 6 each represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms.
  • the hydrocarbon group having 1 to 30 carbon atoms include an alkyl group, an alkenyl group, a cycloalkyl group, a bicycloalkyl group, a tricycloalkyl group, an alkylcycloalkyl group, an alkylbicycloalkyl group, an alkyltricycloalkyl group, and a cycloalkylalkyl.
  • R 5 and R 6 may combine to form a divalent group represented by the following general formula (7). The two bonds of the divalent group bond to X 1 and X 2 , respectively.
  • R 9 and R 1 Q may be the same or different and each represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and both R 9 and R 10 are methyl groups. Is preferred. ]
  • the alkyl group as R 6 is but it may also be either a straight-chain or branched. Further, the alkyl group preferably has 1 to 18 carbon atoms. Specific examples of such an alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a tertiary butyl group, a pentyl group, an isopentyl group, and a hexyl group.
  • Examples of the cycloalkyl group as R 5 and R 6 include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, a cyclododecyl group, and the like.
  • a cycloalkyl group having 5 or 6 carbon atoms is preferable, and a cyclohexyl group is particularly preferable.
  • a cycloalkylmethyl group is preferable, a cycloalkylmethyl group having 6 or 7 carbon atoms is more preferable, and a cyclopentylmethyl group and a cyclohexylmethyl group are particularly preferable. That's right. '
  • bicycloalkylalkyl group as R 5 and R 6 , a bicycloalkylmethyl group is preferable, a bicycloalkylmethyl group having 9 to 11 carbon atoms is more preferable, and a decalinylmethyl group is particularly preferable.
  • the groups represented are particularly preferred.
  • R & as the ⁇ Li Ichiru and alkyl ⁇ aryl group as R 6, phenylene group, a tolyl group, a xylyl group, Echirufueniru group, Bierufueniru group, main Chirufueniru group, dimethyl-phenylalanine group, trimethyl phenylalanine group , Etiluf Phenyl group, isopropylphenyl group, tert-butylphenyl group, di-tert-butylphenyl group, 2,6-di-tert-butyl-4-methylphenyl group and the like.
  • an aryl group and an alkyl aryl group having 6 to 15 carbon atoms are preferable.
  • R 7 represents an alkylene group having 1 to 20 carbon atoms.
  • the alkylene group preferably has 1 to 10, more preferably 2 to 6, and still more preferably 3 to 4 carbon atoms.
  • those represented by the following general formula (10) are preferable.
  • R 11 , R 12 , R 13 and R 14 may be the same or different and each represent a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and R 11 R 12 and R 13 And the total number of carbon atoms in R 14 is 6 or less. Also, preferably, R 11 , R 12 , R 13 and R 14 may be the same or different and each represent a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms, and each of R 11 , R 12 , R 13 and The total number of carbon atoms in R 14 is 5 or less.
  • R 11 R 12 , R 13 and R 14 may be the same or different and each represent a hydrogen atom or a hydrocarbon group having 1 or 2 carbon atoms, and R 11 R 12 , R 13 and R 14 The total number of 14 carbon atoms is 4 or less. Particularly preferably, R 11 , R 12 , R 13 and R 14 may be the same or different and each represent a hydrogen atom or a hydrocarbon group having 1 to 2 carbon atoms, and each of R 11 , R 12 , R 13 and The total number of carbon atoms in R 14 is 3 or less. Most preferably, either R 13 or R 14 is a methyl group and the remaining three groups are hydrogen atoms.
  • R 8 in the general formula (6) represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms. Such hydrocarbon groups include hydrocarbon groups exemplified in the description of R 5 and R 6.
  • X 2 , X 3 , X 4 and X 5 in the general formula (6) may be the same or different and each represent an oxygen atom or a sulfur atom.
  • at least one of X 2 , X 3 , X 4 or X 5 is preferably a sulfur atom, more preferably at least two is a sulfur atom, and two are sulfur atoms. More preferably, the remaining two are Yasuko Oxygen.
  • which of X 2 , X 3 , X 4 or X 5 is a sulfur atom is optional, but X 2 and X 3 are oxygen atoms and X 4 and X 5 are sulfur atoms.
  • R 5 and R 6 represent the same definition as R 5 and R 6 in the formula (6), respectively, and I 11 , R 12 , R 13 and R 14 each represent (1 0 The same definition content as R 11 R 1 R 13 and R 14 in ) is shown. ]
  • the (A-2) thiophosphate according to the present invention has the following general formula (12): 16
  • R 15 to R 17 may be the same or different and each represent a hydrocarbon group having 1 to 24 carbon atoms
  • hydrocarbon group having 1 to 24 carbon atoms represented by a length of 15 to 1 ⁇ 17 include an alkyl group, a cycloalkyl group, an alkenyl group, an alkylcycloalkyl group, an aryl group, and an alkyl group.
  • Examples include a reel group and an arylalkyl group.
  • 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, a tridecyl group, a tetradecyl group, Alkyl groups such as a pentadecyl group, a hexadecyl group, a heptane decyl group and an octadecyl group (the alkyl groups may be linear or branched).
  • Alkyl group having 6 to 11 carbon atoms such as a dimethylcycloheptyl group, a methylcycloheptyl group, a dimethylcycloheptyl group, a methylethylcycloheptyl group, a getylcycloheptyl group.
  • the substitution position is also arbitrary).
  • alkenyl group examples include a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, a decenyl group, a dodecenyl group, a tridecenyl group, a tetradecenyl group, a pentadecenyl group, and a hexadecenyl group.
  • alkenyl groups such as heptane decenyl group and octadecenyl group (these alkenyl groups may be linear or branched, and the position of the double bond is also arbitrary).
  • aryl group examples include aryl groups such as a phenyl group and a naphthyl group.
  • the alkylaryl group includes, 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 nonylphenyl group.
  • Examples of the 7-realkyl group include a phenylalkyl group having 7 to 12 carbon atoms such as a benzyl group, a phenylethyl group, a phenylpropyl group, a phenylbutyl group, a phenylpentyl group, and a phenylhexyl group. Linear or branched).
  • thiophosphate represented by the general formula (12) include tributylphosphorothionate, tripentylphosphorothionate, trihexylphosphorothionate, and triheptyl.
  • the lubricating composition of the present invention may contain the (A-1) phosphorus-containing carboxylic oxide compound or (A-2) thiophosphate alone or both.
  • Also individually, specifically, ′, a dimethinoleamino group, a methylamino group, a pyruvamino group, a dibutylamino group, a dibutylamino group, an anilino group (-NH-), a toluidino group ((XV-NH—), a xylidino group (NH—), Acecila:
  • [As Y 5 are each independently Specifically, Jimechinoreamino group, Jechi Ruamino group, dipropylamino group, Jibuchiruamino group, Anirino group ( ⁇ _ NH _).
  • Toluidino group ( ⁇ jV-NH—), xylidino group (ku ( ⁇ ⁇ rH—), acetinoleamino group (CH 3 CONH——), benzoylamino group ()) — CONH—), monoreholino group, pyridinole group
  • R 19 , R 25 and R 26 each independently represents a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, Alkyl groups such as heptyl, octyl, nonyl, decyl, pendecyl, dodecyl, tridecyl, tetradecyl, pendecyl, hexadecyl, hepdecyldecyl, octadecyl, etc. Linear or branched).
  • Alkyl groups (these alkyl groups may be linear or branched); alkenyl groups such as butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, pentadecenyl and dodecenyl (These alkenyl groups may be linear or branched.); Cycloalkyl groups having 5 to 7 carbon atoms, such as cyclopentyl, cyclohexyl, and cycloheptyl; methylcyclopentyl, dimethylcyclopentyl, and methylethyl Tylcyclopentyl, getylcyclopentyl, methylcyclohexyl, dimethylcyclo Alkylcyclo having 6 to 11 carbon atoms such as hexyl group, methylethylcyclohexyl group, acetylcyclohexyl group, methylcycloheptyl group, dimethylcycl
  • Y 4 and Y 5 are more preferably groups having an oxygen-containing atomic ring from the viewpoint of inhibiting sludge.
  • R 23 examples include an ethylene group, a propylene group, a butylene group, and ⁇ Nthylene group, hexylene group, heptylene group, octylene group, nonylene group, decylene group, pendecylene group, dodecylene group, tridecylene group, tetradecylene group, pentadecylene group, hexadecylene group, heptane decylene group, octadecylene group, etc.
  • the alkylene groups may be linear or branched).
  • the reaction method for the copolymerization is also optional, but usually, the component (B-1) and the component (B-2) are subjected to radical solution polymerization in the presence of a polymerization initiator such as benzoyl peroxide.
  • a polymerization initiator such as benzoyl peroxide.
  • a copolymer can be easily obtained.
  • the number average molecular weight of the dispersant type viscosity index improver as the component (B) is also arbitrary, but is usually from 1,000 to 1,500,000, preferably from 10,000 to 200,000. It is desirable to use those.
  • R 1 CO— NR 2 — (CH 2 ) n -COO] m -Z- (OH) n .
  • R 2 is an alkyl group having 1 to 4 carbon atoms
  • Z is a residue excluding a hydroxyl group of a dihydric or higher polyhydric alcohol
  • m is an integer of 1 or more
  • m ' is an integer of 0 or more
  • n is an integer of 1 to 4.
  • alkyl group and alkenyl group include, for example, hexyl group, heptyl group, octyl group, nonyl group, decyl group, pendecyl group, dodecyl group, tridecyl group, tetradecyl group, pendecyl group Alkyl, hexadecyl, heptane decyl, octadecyl, nonadecyl, and icosyl groups (the alkyl groups may be linear or branched); hexenyl, heptenyl, Octenyl, nonenyl, decenyl, pentadecenyl, dodecenyl, tridecenyl, tetradecenyl, pendecenyl, hexadecenyl, hepdecenyl And alkenyl groups such as a senyl group, an alkenyl group
  • X 1 represents hydrogen, an alkyl group having 1 to 30 carbon atoms, or an alkenyl group having 1 to 30 carbon atoms.
  • the alkyl or alkenyl group X 1 represents it is necessary in view of storage stability is several 3 0 or less carbon atoms, preferably at several 2 0 or less carbon atoms, the number 1 0 carbon atoms Is more preferred.
  • alkyl group or alkenyl group examples include, for example, 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 and a decyl group.
  • Alkyl groups (these alkyl groups may be straight-chain or branched); ethenyl, propenyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, etc.
  • X 1 is hydrogen, an alkyl group having 1 to 20 carbon atoms, or an alkenyl group having 1 to 20 carbon atoms, from the viewpoint of improving friction characteristics and improving the durability of the friction characteristics effect. It is more preferably hydrogen or an alkyl group having 1 to 20 carbon atoms, and even more preferably hydrogen or an alkyl group having 1 to 10 carbon atoms.
  • Y 1 represents an alkali metal or an alkaline earth metal, and specifically includes, for example, sodium, potassium, magnesium, calcium, and the like. Among them, from the viewpoint of improving the durability of the friction characteristic effect, Lucari earth metals are preferred.
  • m is Y 1 is case of alkali metal represents one, if Y 1 is Al force Li earth metals show a 2.
  • m is an integer of 1 or more
  • m ' is an integer of 0 or more
  • m + m' is the same as the valence of Z.
  • all of the hydroxyl groups of the polyhydric alcohol of Z may be substituted, and even if only a part thereof is substituted. good.
  • the component (C-1) is at least one compound selected from the general formulas (1) to (3).
  • the component represented by the general formula (1) ) And (2) are preferably at least one compound selected from the group consisting of: Further, only one compound selected from the general formulas (1) to (3) may be used alone, or a mixture of two or more compounds may be used.
  • the component (C-12) is a compound represented by the following general formula (4).
  • R 3 -CH 2 COOH General formula (4)
  • R 3 represents an alkyl group having 7 to 29 carbon atoms, an alkenyl group having 7 to 29 carbon atoms, or a group represented by the general formula (5).
  • R 4 represents an alkyl group having 1 to 20 carbon atoms or hydrogen.
  • R 3 represents an alkyl group having 7 to 29 carbon atoms, an alkenyl group having 7 to 29 carbon atoms, or a group represented by the general formula (5).
  • the alkyl group represented by R 3 needs to have 7 to 29 carbon atoms. From the viewpoint of solubility in a base oil, it is necessary that the carbon number is 7 or more, and it is preferable that the carbon number is 9 or more. Further, from the viewpoint of storage stability and the like, it is necessary that the number of carbon atoms is 29 or less, preferably 22 or less carbon atoms, and more preferably 19 or less carbon atoms.
  • alkyl group examples include a heptyl group, an octyl group, a nonyl group, a decyl group, a pendecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pendecyl group, a hexadecyl group, Heptadecyl group, octadecyl group, nonadecyl group and the like (these alkyl groups may be linear or branched).
  • the alkenyl group represented by R 3 needs to have 7 to 29 carbon atoms. From the viewpoint of solubility in base oil, it is necessary that the carbon number is 7 or more, and it is preferable that the carbon number is 9 or more. Further, from the viewpoint of storage stability and the like, the number of carbon atoms needs to be 29 or less, preferably 22 or less, more preferably 19 or less.
  • alkenyl group examples include, for example, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, a pendecenyl group, a dodecenyl group, a tridecenyl group, a tetradecenyl group, a pentadecenyl group, a hexadecenyl group, and a heptadecenyl group.
  • octenyl decenyl group, nonadecenyl group and the like these alkenyl groups may be linear or branched).
  • R 4 represents an alkyl group having 1 to 20 carbon atoms or hydrogen.
  • the alkyl group represented by R 4 needs to have 20 or less carbon atoms from the viewpoint of storage stability and the like, preferably has 19 or less carbon atoms, and more preferably has 15 or less carbon atoms. preferable. Further, from the viewpoint of solubility in a base oil, the number of carbon atoms is preferably 3 or more, and more preferably 5 or more.
  • the position of substitution is arbitrary, but is preferably in the para or meta position, and more preferably in the para position, from the viewpoint of improving the frictional effect.
  • R 3 is represented by the general formula (5).
  • the group may be a group represented by the general formula (5), but is preferably a group represented by the general formula (5) from the viewpoint of superior frictional characteristics.
  • An ester oil agent is added to the lubricating composition of the present invention as the component (D).
  • the ester oily agent as the component (D) can be obtained by reacting an alcohol with a carboxylic acid.
  • the alcohol may be a monohydric alcohol or a polyhydric alcohol.
  • the carboxylic acid may be a monobasic acid or a polybasic acid.
  • the monohydric alcohol constituting the ester oily agent usually has 1 to 2 carbon atoms. 4, preferably from 1 to 12, more preferably from 1 to 8; such alcohols may be straight-chain or branched, and may be saturated or unsaturated. It may be.
  • Examples of the alcohol having 1 to 24 carbon atoms include, for example, methanol, ethanol, linear or branched propanol, linear or branched butanol, linear or branched alcohol.
  • polyhydric alcohol constituting the ester oily agent one having usually 2 to 10 valency, preferably 2 to 6 valency is used.
  • Specific examples of the polyhydric alcohol of 2 to 10 include, for example, ethylene glycol, diethylene glycol, polyethylene glycol (3 to 15 mers of ethylene glycol), propylene glycol, dipropylene glycol, Polypropylene glycol (3- to 15-mer of propylene glycol), 1,3-propanediol, 1,2-propanediol, 1,3-butanediol, 1,4-butanediol, 2-methyl-1,2 —Propanediol, 2 —methyl-1,3—propanediol, 1,2 —pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,5 —pentanediol, neopentyl glycol, etc.
  • Dihydric alcohols Dihydric alcohols; glycerin, polyglycerin (2 to 8 mer of glycerin such as diglycerin, triglycerin, Toragurise such as phosphorus), trimethylol alkane (trimethylol E Tan, Torimechiro trimethylolpropane, trimethylol butane, etc.) and their 2-8 mer, pen evening Erythritol and their dimers to tetramers, 1,2,4-butanetriol, 1,3,5_pentantriol, 1,2,6-hexanetriol, 1,2,3,4-butane
  • Polyhydric alcohols such as Troll, Sorpi !, sorbitan, sorbitol glycerin condensate, aditol, arabitol, xylitol, mannitol; xylose, arabinose, report, ramnose, glucose, and fruc! ⁇ Sugars such as glucose, galacto
  • ethylene glycol diethylene glycol, polyethylene glycol (3 to 10 mer of ethylene glycol), propylene glycol, dipropylene glycol, and polypropylene glycol (3 to 10 mer of propylene glycol)
  • 1,3-propanediol 2-methyl-1,2-propanediol, 2-methyl-1,3-propanediol, neopentyldaricol
  • glycerin diglycerin, triglycerin
  • the alcohol constituting the ester oily agent according to the component (D) of the present invention may be a monohydric alcohol or a polyhydric alcohol, as described above. It is preferable that in addition, among the acids constituting the ester oily agent according to the component (D) of the present invention, as the monobasic acid, a fatty acid having 1 to 24 carbon atoms is usually used, and the fatty acid may be linear or branched. And may be saturated or unsaturated.
  • Examples of the polybasic acid include a dibasic enzyme and trimellitic acid, and a dibasic acid is preferred.
  • Dibasic acids include linear dibasic acids and cyclic dibasic acids It may be a shift. In the case of a linear dibasic acid, it may be linear or branched, and may be saturated or unsaturated.
  • chain dibasic acid a chain dibasic acid having 2 to 16 carbon atoms is preferable.
  • ethanenic acid propane diacid, linear or branched butane diacid, straight chain Or branched pentanedioic acid, linear or branched hexanedioic acid, linear or branched heptanedioic acid, linear or branched octanedioic acid, linear or branched nonanni Acid, linear or branched decandioic acid, linear or branched pentadecanoic acid, linear or branched dodecandioic acid, linear or branched tridecandioic acid, linear Linear or branched tetradecandioic acid, linear or branched hepcanedioic diacid, linear or branched hexadecandioic acid, linear or branched hexenedioic acid, linear Or
  • cyclic dibasic acid examples include 1,2-cyclohexanedicarboxylic acid, 4-cyclohexene-1,2-dicarboxylic acid, and aromatic dicarboxylic acid.
  • a linear dibasic acid is preferred from the viewpoint of stability.
  • the acid constituting the ester-based oily agent may be a monobasic acid or a polybasic acid as described above, but a monobasic acid is preferred from the viewpoint of frictional characteristics.
  • the combination of the alcohol and the acid in the ester-based oily agent is arbitrary and not particularly limited, and examples thereof include esters formed by the following combinations (i) to (Vii).
  • esters (ii) to (Vii) may be a complete ester obtained by esterifying all of the hydroxyl groups of the polyhydric alcohol or the hydroxyl group of the polybasic acid. Alternatively, it may be a partial ester remaining as a carbonyl group.
  • the ester (ii) may be a complete ester in which all of the hydroxyl groups of the polyhydric alcohol have been esterified, or may be a partial ester in which a part thereof remains as a hydroxyl group.
  • Complete esters are preferred from the viewpoint of preventing precipitation, and partial esters are preferred from the viewpoint of frictional characteristics.
  • the ester of the above (ii) contains a partial ester
  • the partial ester is a mixture of two or more partial esters having different degrees of esterification from the viewpoint of anti-precipitation property, abrasion resistance and friction characteristics. More preferably, it is a mixture of a partial ester having a degree of esterification of 1 and a partial ester having a degree of esterification of 2 or more.
  • the degree of esterification means the number of ester bonds in one molecule.
  • the polyhydric alcohol constituting the ester of the above (ii) is sorbine
  • the partial ester having a degree of esterification of 1 is a sorbine monoester, while the degree of esterification is 2 or more.
  • Certain partial esters include sorbitan diesters and sorbitan triesters.
  • the ester of the above (ii) is a partial ester having a degree of esterification of 1.
  • the proportion of the partial ester having a degree of esterification of 1 is preferably 10 to 70 mol%, based on the total amount of both. More preferably, it is 20 to 50 mol%.
  • the proportion of the partial ester having a degree of esterification of 2 or more is preferably 30 to 70 mol%, more preferably 50 to 80 mol%, based on the total amount of both.
  • the monobasic acid constituting the ester (ii) may be either a straight-chain fatty acid or a branched fatty acid, but is preferably a straight-chain fatty acid from the viewpoint of frictional properties, For this reason, branched fatty acids are preferred.
  • the monobasic acid constituting the ester (ii) may be either a saturated fatty acid or an unsaturated fatty acid, but is preferably a saturated fatty acid from the viewpoint of friction characteristics and abrasion resistance. Unsaturated fatty acids are preferred for prevention. Furthermore, when the monobasic acid contains both a saturated fatty acid and an unsaturated fatty acid, the proportion of the saturated fatty acid in the total of the two is preferably at least 60 mol% from the viewpoint of frictional characteristics (particularly, reduction of friction coefficient). It is more preferably at least 75 mol%, further preferably at least 90 mol%, and still more preferably at least 95 mol%.
  • the number of carbon atoms of the monobasic acid constituting the ester (ii) is not particularly limited, but from the viewpoint of preventing precipitation, a short-chain fatty acid having 1 to 4 carbon atoms, preferably 2 carbon atoms, and It is preferable to use a mixture of both long-chain fatty acids of 10 to 24, preferably 12 to 18 in combination. Further, when the above-mentioned short-chain fatty acid and long-chain fatty acid are combined, the proportion of the short-chain fatty acid in the total of both is preferably 50 to 80 mol%, more preferably 60 to 70 mol%. It is 5 mol%, more preferably 65 to 70 mol%.
  • esters (ii) it is preferable to use the following esters (ii-11) to (ii-4) from the viewpoint that various properties such as frictional properties and precipitation prevention properties can be achieved in a well-balanced manner.
  • (ii-3) a complete ester of a polyhydric alcohol and a saturated fatty acid, wherein the constituent fatty acids comprise a mixture of short-chain fatty acids having 1 to 4 carbon atoms and long-chain fatty acids having 10 to 24 carbon atoms,
  • the ester of the above (ii-1) is preferred in that it can achieve a high level of both the frictional properties and the anti-precipitation property.
  • the number of carbon atoms of the unsaturated fatty acid constituting the ester (ii-11) is preferably 10 or more, more preferably 12 or more, and still more preferably 14 or more from the viewpoint of further improving the friction characteristics. It is. Further, the carbon number of the unsaturated fatty acid is preferably 28 or more, more preferably 26 or less, and further preferably 24 or less from the viewpoint of preventing precipitation.
  • Such esters include glycerin monoolate and sorbynomonolate.
  • the ester of (ii-12) is preferable in that all of the frictional properties, precipitation prevention properties, abrasion resistance and heat resistance can be achieved at a high level in a well-balanced manner.
  • the polyhydric alcohol constituting the ester of (ii-2) may be one kind or a mixture of two or more kinds. If the polyhydric alcohol contains a dihydric alcohol, the trihydric or higher polyhydric alcohol is used. It is preferable to further include an alcohol.
  • the content of the complete ester is less than that of the ester of (ii-2). It is at most 10 mol%, preferably at most 5 mol%, particularly preferably substantially free of complete esters.
  • Esters of (ii-3) are preferred because they can achieve a high level of balance in frictional properties (particularly reduction of friction coefficient and energy saving), precipitation prevention and abrasion resistance.
  • a combination of a short-chain fatty acid having 2 carbon atoms and a long-chain fatty acid having 12 to 18 carbon atoms is preferable, since the precipitation preventing property can be further improved.
  • the proportion of short-chain fatty acids in the total amount of the constituent fatty acids is preferably 60 to 80 mol%, more preferably 60 to 75 mol%, and further preferably 65 to 70 mol%. If the proportion of short-chain fatty acids is less than 50 mol%, the solubility in base oil tends to decrease.
  • the proportion of short-chain fatty acids exceeds 80 mol%, the friction reducing effect tends to decrease.
  • the proportion of saturated fatty acids in the total amount of constituent fatty acids is preferably at least 60 mol%, more preferably at least 75%, even more preferably at the point that friction characteristics (particularly reduction of friction coefficient) can be further improved. It is at least 90 mol%, more preferably at least 95 mol%. If the proportion of the saturated fatty acid is less than 60 mol%, the friction reducing effect tends to be insufficient.
  • ester of (ii-14) above is preferable in that all of the frictional properties, the anti-precipitation property, the abrasion resistance and the anti-corrosion property can be achieved at a high level with good balance.
  • the polyhydric alcohol constituting the ester of (ii-4) may be one kind or a mixture of two or more kinds. It is preferable to further include a polyhydric alcohol having a valency or higher.
  • the ratio of the partial ester having a degree of esterification of 1 is based on the total amount of the partial ester having a degree of esterification of 1 and the partial ester having a degree of esterification of 2 or more.
  • the ratio of the partial ester having a degree of esterification of 2 or more is based on the total amount of the partial ester having a degree of esterification of 1 and the partial ester having a degree of esterification of 2 or more. Preferably it is 30-70 mol%, more preferably 50-80 mol%.
  • the ester of (ii-14) above can further contain a complete ester, but all of the frictional properties, anti-precipitation properties, abrasion resistance and anti-scratch properties can be achieved at a high level in a well-balanced manner. Therefore, the content of the complete ester is not more than 10 mol%, preferably not more than 5 mol%, particularly preferably substantially free of the complete ester, based on the ester (ii-14).
  • esters (ii-1) to (ii-4) the friction characteristics, the precipitation prevention properties and the abrasion resistance balance are better, and the heat resistance is also excellent (ii-2)
  • the esters of (ii-3) and (ii-4) are preferred as (D-1), (D-2), and (D-3) of component (D), respectively, as follows. More preferably, the ester of (D-1) is preferred.
  • (D-1) a mixture of a partial ester having a degree of esterification of 1 and a partial ester having a degree of esterification of 2 or more, which is an ester of a polyhydric alcohol and an unsaturated fatty acid,
  • (D-2) a complete ester of a polyhydric alcohol and a saturated fatty acid, wherein the constituent fatty acids are a mixture of short-chain fatty acids having 1 to 4 carbon atoms and long-chain fatty acids having 10 to 24 carbon atoms,
  • (D-3) An ester of a polyhydric alcohol and a branched saturated fatty acid, which is a mixture of a partial ester having an esterification degree of 1 and a partial ester having an esterification degree of 2 or more.
  • the content is 0.001 to 5% by mass, more preferably 0.002 to 3% by mass, and even more preferably 0.003 to 1% by mass. If the content of the phosphorus-containing carboxylic acid compound is less than the lower limit, sufficient lubricity tends not to be obtained. On the other hand, even if the content exceeds the above upper limit, the lubricity improving effect commensurate with the content tends not to be obtained, and furthermore, the thermal / oxidative stability and the hydrolytic stability may be unfavorably reduced.
  • the content of the component (C-12) in the case of blending the component is arbitrary, but if the blending amount is large, the sludge resistance may decrease. It is preferably 5% by mass or less, more preferably 1% by mass or less, even more preferably 0.5% by mass or less based on the total amount. On the other hand, it is preferably 0.001% by mass or more, more preferably 0.003% by mass or more, based on the total amount of the composition, from the viewpoint of sufficiently exhibiting the effect of improving the frictional characteristics, It is even more preferred that the content be not less than mass%.
  • the content of the phosphorylated carboxylic acid represented by the general formula (1) in which R 4 is a hydrogen atom (including the 3-dithiophosphorylated propionic acid represented by the general formula (6)) Is preferably 0.001 to 0.1% by mass, more preferably 0.002 to 0.08% by mass, still more preferably 0.003 to 0.07% by mass, and still more preferably 0.004 to 0.07% by mass. 06% by mass, particularly preferably 0.005 to 0.05% by mass. If the content is less than 0.001, the effect of improving low friction and stick slip prevention may be insufficient. On the other hand, if it exceeds 0.1% by mass, thermal and oxidation stability may be reduced. There is.
  • the lubricating oil for sliding guide surfaces of the present invention may contain the (A-1) phosphorus-containing sulfonic acid compound and / or (A-2) thiophosphate alone or in combination.
  • components (E) to (K) which can be optionally contained in the lubricating composition of the present invention, in addition to the components (A) to (D), will be described below.
  • Examples of the olefin sulfide include a compound represented by the following general formula (18).
  • This compound is obtained by reacting an olefin having 2 to 15 carbon atoms or a dimer to a tetramer thereof with a sulfurizing agent such as sulfur or sulfur chloride.
  • a sulfurizing agent such as sulfur or sulfur chloride.
  • the olefin include propylene, isobutene, diisobutene and the like. preferable.
  • R 27 is an alkenyl group having 2 to 15 carbon atoms
  • R 28 is an alkenyl group having 2 to 15 carbon atoms
  • A represents an alkyl group or an alkenyl group
  • a represents an integer of 1 to 8.
  • dihydrocarbyl (poly) sulfide is a compound represented by the following general formula (19).
  • R 2 9 and R 3 G is an alkyl group, sometimes referred to as vulcanization alkyl.
  • thiadiazole compounds include 2,5-bis (n-hexyldithio) 1-1,3,4-thiadiazole, 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-thiadiazol, 3,5-bis (n-nonyldithio) ) — 1,2,4-thiadiazole, 3,5-bis (1,1,3,3-tetramethylbutyldithio) 1,2,4-thiadiazole, 4,5-bis (n-hexyldithio
  • alkylthiolrubamoyl compound examples include a compound represented by the following general formula (23).
  • R 3 7 to R 4 G may be the same or different, each represent an alkyl group having a carbon number of 1-2 0, 4 1 is an alkyl group having 1 to 1 0 carbon atoms.
  • Specific examples of such an alkylthiocarbamate compound preferably include methylenebis (dibutyldithiocarbamate) and methylenebis [di (2-ethylhexyl) dithiocarbamate].
  • examples of the thioterpene compound include a reaction product of phosphorus pentasulfide and pinene
  • examples of the dialkylthiodipropionate compound include dilauryl thiodipropionate, distearyl thiodipropionate, and a mixture thereof. be able to.
  • Sulfurized mineral oil refers to mineral oil in which elemental sulfur is dissolved.
  • the mineral oil used for the sulfided mineral oil according to the present invention is not particularly limited.
  • a lubricating oil fraction obtained by subjecting crude oil to atmospheric distillation and vacuum distillation is examples include paraffinic mineral oils and naphthenic mineral oils that have been appropriately combined with purification treatments such as solvent dewatering, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrorefining, sulfuric acid washing, and clay treatment.
  • the simple sulfur may be in any form such as a lump, a powder, a molten liquid, and the like, but the use of a powder or a molten liquid of a simple sulfur enables efficient dissolution in the base oil. It is preferable because it can be used.
  • Melting liquid elemental sulfur has the advantage that the melting operation can be performed in a very short time because the liquids are mixed with each other, but it must be handled at a temperature higher than the melting point of elemental sulfur. It is not always easy to handle because it requires special equipment such as the one, and is handled in a high-temperature atmosphere. In contrast, powdered elemental sulfur is particularly preferred because it is inexpensive and easy to handle, and the time required for dissolution is sufficiently short.
  • the sulfuric acid content of the sulfided mineral oil according to the present invention is not particularly limited, but is usually preferably from 0.05 to: 0.5% by mass, more preferably 0.1% by mass, based on the total amount of the sulfided mineral oil. ⁇ 0.5% by mass.
  • R 42, R 43, R 44, R 45, R 46, R 47, R 4 8, R 49, R 50, R 51, R 52, R 53, R 54 , R 55 , R 56 and R 57 may be the same or different and each represents a hydrocarbon group having 1 or more carbon atoms, and X 6 and X 7 each represent an oxygen atom or a sulfur atom]
  • Specific examples of the hydrocarbon group represented by are methyl group, ethyl group, propyl group (including all branched isomers), butyl group (including all branched isomers), pentyl group (Including all branched isomers), hexyl group (including all branched isomers), heptyl group (including all branched isomers), octyl group (including all branched isomers)
  • the content of the sulfur-based extreme pressure agent as the component (E) is arbitrary, but from the viewpoint of improving the extreme pressure property of the obtained lubricating composition, its lower limit is based on the total amount of the composition.
  • the value is preferably at least 0.01% by mass, more preferably at least 0.05% by mass, even more preferably at least 0.1% by mass.
  • the upper limit of the content of the sulfur extreme pressure agent is preferably 10% by mass or less, more preferably 5% by mass or less, and more preferably 3% by mass, based on the total amount of the composition. %, Still more preferably 1% by mass or less.
  • an epoxy compound in the lubricating composition of the present invention, can be blended as an optional component (F) from the viewpoint of controlling sludge.
  • Epoxy compounds include the following.
  • phenyldaricidyl ether type epoxy compound examples include phenyldaricidyl ether and alkylphenyldaricidyl ether.
  • the alkylphenyldaricidyl ether referred to herein includes those having 1 to 3 alkyl groups having 1 to 13 carbon atoms, among which those having one alkyl group having 4 to 10 carbon atoms, for example, n-butylphenyl Daricidyl ether, i-butylphenyldaricidyl ether, sec-butylphenyldaricidyl ether, tert-butylphenyldaricidyl ether, pentylphenyldaricidyl ether, hexylphenylda U-cidylether, heptylphenyldali Preferred examples thereof include sidyl ether, octylphenyldaricidyl ether, nonylphenyldaricidyl
  • alkyl glycidyl ether type epoxy compound examples include decyl glycidyl ether, pendecyl glycidyl ether, and Sildaricidyl ether, tridecyl glycidyl ether, tetradecyl glycidyl ether, 2-ethylhexyl glycidyl ether, neopen tildaricol diglycidyl ether, trimethylolpropane triglycidyl ether, pentaerythritol tetraglycidyl ether, 1, 6 to Examples thereof include xandiol diglycidyl ether, sorbitol polydaricidi J polyester, polyalkylene glycol monoglycidyl ether, and polyalkylendalicol diglycidyl ether.
  • R 5 8 represents a hydrocarbon group having 1 to 1 8 carbon atoms
  • R 5 8 each represents a hydrocarbon group having 1 to 1 8 carbon atoms, such as hydrocarbon group, an alkyl group having 1 to 1 8 carbon atoms, carbon atoms 2-1 8 alkenyl groups, 5 to 7 carbon cycloalkyl groups, 6 to 18 carbon alkylcycloalkyl groups, 6 to 10 carbon aryl groups, 7 to 18 carbon alkylaryls Group, carbon number? To 18 arylalkyl groups.
  • an alkyl group having 5 to 15 carbon atoms, an alkenyl group having 2 to 15 carbon atoms, a phenyl group, and an alkylphenyl group having an alkyl group having 1 to 4 carbon atoms are preferable.
  • dalicidyl ester type epoxy compounds preferred are, for example, glycidyl 2,2-dimethyloctanoate, dali Examples thereof include sidyl benzoate, glycidyl-tert-butyl benzoate, glycidyl acrylate, and glycidyl methacrylate.
  • aryloxysilane compounds include 1,2-epoxystyrene and alkyl-1,2-epoxystyrene.
  • alkyloxysilane compound examples include 1,2-epoxybutane, 1,2-epoxypentane, 1,2-epoxyhexane, 1,2-epoxyheptane, and 1,2-epoxy Octane, 1,2-epoxynonane, 1,2-epoxydecane, 1,2-epoxypandecane, 1,2-epoxidedodecane, 1,2-epoxytridecane, 1,2-epoxytetradecane, 1,2 —Epoxy pen decane, 1,2-epoxy hexadenic, 1,2-epoxy hepdecane, 1,1,2-epoxy octadecane, 21-epoxy nonadecane, 1,2-epoxy icosane, etc. Can be illustrated.
  • alicyclic epoxy compound examples include 1,2-epoxycyclohexane, 1,2-epoxycyclopentane, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate. , Bis (3,4-epoxycyclohexylmethyl) adipate, exo-1,2 ⁇ "epoxynorbornane, bis (3,4-epoxy-6-methylcyclohexylmethyl) adipate, 2- (7-oxabicyclo [ 4. 1.
  • epoxidized fatty acid monoester examples include esters of an epoxidized fatty acid having 12 to 20 carbon atoms with an alcohol or phenol having 1 to 8 carbon atoms, an alkylphenol, and the like. Particularly, butyl, hexyl, benzyl, cyclohexyl, methoxyethyl, octyl, phenyl, and butylphenyl esters of epoxy stearic acid are preferably used.
  • epoxidized vegetable oil examples include epoxy compounds of vegetable oils such as soybean oil, linseed oil, and cottonseed oil.
  • the amount of the compound is not particularly limited. It is desirable to add an epoxy compound in such an amount that the content thereof is 0.1 to 5.0% by mass, more preferably 0.2 to 2.0% by mass (based on the total amount).
  • the lubricating composition of the present invention contains (G) a phenolic antioxidant and (G— ⁇ ) an amine antioxidant as component (G) from the viewpoint of oxidation stability. , Or both.
  • any phenolic compound used as an antioxidant in lubricating oils can be used, and is not particularly limited.
  • R 59 R represents an alkyl group having 1 to 4 carbon atoms
  • R 61 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, radicals or below represented by the following general formula (3 1-i) Represents a group represented by the general formula (31-ii).
  • R 62 is an alkylene group having 1 to 6 carbon atoms, or R 63 is not an alkyl or alkenyl group of from 1 to 24 carbon, Ru.
  • R 64 represents an alkylene group having 1 to 6 carbon atoms
  • R 65 represents an alkyl group having 1 to 4 carbon atoms
  • R 66 represents a hydrogen atom or 1 to 4 carbon atoms. Represents an alkyl group.
  • R 67 and R 71 each independently represent an alkyl group having 1 to 4 carbon atoms
  • R 68 and R 72 each independently represent a hydrogen atom or Represents an alkyl group having 1 to 4 carbon atoms
  • R 69 and R 7 Q each independently represent an alkylene group having 1 to 6 carbon atoms
  • X 8 represents an alkylene group having 1 to 18 carbon atoms or The group represented by the formula (32-i) is shown.
  • R 73 and R 74 each independently represent a carbon number
  • R 59 is, specifically, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, Ec A butyl group, a tert-butyl group and the like can be mentioned, and a tert-butyl group is preferable in terms of excellent oxidation stability.
  • R 6Q include a hydrogen atom and an alkyl group having 1 to 4 carbon atoms as described above, and a methyl group or a tert-butyl group is preferable from the viewpoint of excellent oxidation stability.
  • R 61 is an alkyl group having 1 to 4 carbon atoms, specifically, as R 61 , methyl, ethyl, n-propyl, isopropyl, n-butyl Groups, isobutyl group, sec-butyl group, tert-butyl group and the like, and a methyl group or an ethyl group is preferable from the viewpoint of excellent oxidation stability.
  • alkylphenols compound represented by the general formula (31) particularly preferred compound when R 61 is an alkyl group having a carbon number of 1 to 4, 2, 6-di - tert-butyl - p- Cresol, 2,6-di-tert-butyl-1-4-ethylphenol, and mixtures thereof.
  • R 61 in the general formula (31) is a group represented by the general formula (31-i)
  • an alkylene group having 1 to 6 carbon atoms represented by R 62 in the general formula (31_i) May be linear or branched.
  • a methylene group, a methylmethylene group, an ethylene group (dimethylene group), an ethylmethylene group, a propylene group (methylethylene group), a trimethylene group examples thereof include a chain or branched butylene group, a straight or branched pentylene group, and a straight or branched hexylene group.
  • R 62 is an alkylene group having 1 to 2 carbon atoms, for example, a methylene group, a methyl methylene group, an ethylene group (a dimethylene group), in that the compound represented by the general formula (31) can be produced in a small number of reaction steps. ) Is more preferable.
  • the alkyl group or alkenyl group having 1 to 24 carbon atoms represented by R 63 in the general formula (31-i) may be linear or branched. Specifically, for example, a methyl group, ethyl Group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pendecyl group, hexadecyl group Alkyl, heptadecyl, octadecyl, nonadecyl, icosyl, helicosyl, docosyl, tricosyl, tetracosyl, and other alkyl groups (these alkyl groups may be linear or branched)
  • the R 6 from the viewpoint of excellent solubility in the base oil, an alkyl group having a carbon number of 4 to 1 8, specifically, for example, butyl group, heptyl group pentyl group, a hexyl group, Okuchiru group, nonyl Group, decyl group, pendecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptanedecyl group, octadecyl group, etc. It may be branched), preferably a straight-chain or branched alkyl group having 6 to 12 carbon atoms, and particularly preferably a branched alkyl group having 6 to 12 carbon atoms.
  • R 6 1 is a group represented by the general formula (3 1 one i)
  • R 6 2 is an alkylene group having 1 to 2 carbon atoms, more preferably those R 6 3 is a linear or branched alkyl group having 6-1 2 carbon atoms
  • R 62 is preferably an alkylene group having 1 to 2 carbon atoms
  • R 63 is preferably a branched alkyl group having 6 to 12 carbon atoms.
  • preferred examples of the compound include n-hexyl (3-methyl-5-tert-butyl-4-hydroxyphenyl) acetate and iso- (3-methyl-5-tert-butyl-4-hydroxyphenyl) acetate.
  • R 64 in the general formula (31-ii) represents an alkylene group having 1 to 6 carbon atoms. ing.
  • This alkylene group may be linear or branched, and specific examples include various alkylene groups exemplified above for R 63 .
  • R 64 is an alkylene group having 1 to 3 carbon atoms, for example, a methylene group or a methylmethylene group, since the compound of the general formula (31) can be produced in a small number of reaction steps and the raw material is difficult to obtain.
  • an ethylene group (dimethylene group), an ethylmethylene group, a propylene group (methylethylene group), a trimethylene group and the like.
  • R 65 in the general formula (31-ii) specifically, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group And a tert-butyl group, but a tert-butyl group is preferred because of its excellent oxidation stability.
  • the R 66 there may be mentioned an alkyl group having 1 to 4 carbon atoms such as hydrogen atoms or above, from the viewpoint of excellent oxidation stability, a methyl group or tert- heptyl group.
  • Preferred examples of the alkylphenol compound represented by the general formula (31) when R 61 is a group represented by the general formula (31-ii) include: Bis (3,5-di-tert-butyl-4-bi) Droxyphenyl) Methane, 1,1-bis (3,5-di-tert-butyl 4-hydroxyphenyl) ethane, 1,2-bis (3,5-di_tert-tert-butyl-4-hydroxyphenyl) Ethane, 1,1-bis (3,5-di-tert-butyl-4-hydroxyphenyl) propane, 1,2-bis (3,5-di-tert-butyl-4-hydroxyphenyl) propane , 1,3-bis (3,5-di-te ⁇ t-butyl-4-hydroxyphenyl) propane, 2,2-bis (3,5-di-tert-butyl-4-hydroxyphenyl) propane, and mixtures thereof And the like.
  • R 67 and R 71 are each independently an alkyl group having 1 to 4 carbon atoms, specifically, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, Examples thereof include an n-butyl group, an isobutyl group, a sec-butyl group, and a tert-butyl group. From the viewpoint of excellent oxidation stability, both are preferably a tert-butyl group.
  • R 68 and R 72 each independently include a hydrogen atom or an alkyl group having 1 to 4 carbon atoms as described above, but each is independently a methyl group from the viewpoint of excellent oxidation stability. Or a tert-butyl group.
  • the alkylene group having 1 to 6 carbon atoms represented by the lengths 69 and 17 () may be linear or branched. in, respectively individually include various alkylene groups mentioned above for R 62.
  • R 69 and R 7 Q each independently represent an alkylene group having 1 to 2 carbon atoms in that the compound represented by the general formula (32) can be produced in a small number of reaction steps and that the raw materials thereof are easily available.
  • a methylene group, a methylmethylene group, an ethylene group (dimethylene group) and the like are more preferable.
  • examples of the alkylene group having 1 to 18 carbon atoms that represents X 8 include, for example, a methylene group, a methylmethylene group, an ethylene group (dimethylene group), an ethylmethylene group, and a propylene group.
  • Alkylene groups specifically, for example, methylene group, methylmethylene group, ethylene group (dimethylene group), ethylmethylene group, propylene group (methylethylene group), trimethylene group, butylene group, pentylene group, hexylene group, etc.
  • the alkylene group is more preferably linear or branched, and is more preferably ethylene group (dimethylene group), trimethylene group, linear butylene group (tetramethylene group, linear pentylene group (pentamethylene group),
  • a linear alkylene group having 2 to 6 carbon atoms, such as a hexylene group (hexamethylene group), is particularly preferable.
  • Ruff: £ in Nord compounds, those X 8 is particularly preferred as a compound when it is an alkylene group having 1 to 1 8 carbon atoms is a compound represented by the following formula (3 3).
  • R 7 3 and R 7 4 are each independently an alkylene group of 1-3 carbon atoms, specifically, for example, More preferred are a methylene group, a methylmethylene group, an ethylene group (a dimethylene group), an ethylmethylene group, a propylene group (a methylethylene group), and a trimethylene group.
  • the (G—A) component of the optional component of the present invention includes an alkylphenol compound represented by the general formula (31) or (32).
  • One compound selected from the above may be used alone, or a mixture of two or more compounds selected from the above at an arbitrary mixing ratio may be used.
  • the upper limit of the (GA) component in the lubricating composition of the present invention is 3% by mass, preferably 2% by mass, more preferably 1% by mass, based on the total amount of the composition. If the content exceeds 3% by mass, the oxidation stability and the effect of suppressing sludge formation are not further improved in proportion to the content, and the solubility in the base oil is lowered. i
  • the lower limit of the content of the (GA) component is 0.01% by mass, preferably 0.1% by mass, and more preferably 0.2% by mass, based on the total amount of the composition.
  • any amine compound used as an antioxidant in lubricating oils can be used, and is particularly limited. It is not a thing, for example, One selected from (N-p-alkyl) phenyl-naphthylamine represented by the general formula (35) or p, p'-dialkyldiphenylamine represented by the general formula (36) Alternatively, two or more aromatic amines are preferred.
  • R 75 represents a hydrogen atom or an alkyl group having 1 to 16 carbon atoms.
  • R 76 and R 77 each independently represent an alkyl group having 1 to 16 carbon atoms.
  • R 75 represents a hydrogen atom or a linear or branched alkyl group having 1 to 16 carbon atoms. I have. The proportion of the functional group occupying in the molecule in the case where the number of carbon atoms of R 75 is greater than 1 6 is reduced, Ru danger of antioxidant ability is weakened.
  • R 7 5 Among alkyl group is represented by formula (35) compound represented by, from the viewpoint of excellent solubility of its own oxidation product to the base oil, branched 8-1 6 carbon atoms
  • An alkyl group is preferable, and a branched alkyl group having 8 to 16 carbon atoms derived from an oligomer of a C 3 or 4 carbon olefin is more preferable.
  • Specific examples of the olefin having 3 or 4 carbon atoms include propylene, 1-butene, 2-butene and isobutylene, which are excellent in solubility of an oxidation product of itself in a base oil. , Propylene or isoptylene is preferred.
  • R 7 6 and R 7 7 are each independently represents an alkyl group having 1 to 1 6 carbon atoms. If one or both of R 7 6 and R 7 7 is a hydrogen atom can cause itself to settle as sludge by oxidation. On the other hand, when the number of carbon atoms exceeds 1 6 occupy in the molecule functional The proportion of groups may be reduced and the antioxidant capacity may be weakened.
  • R 7 6 and R 7 7 is derived from propylene Isopropyl group, tert-butyl group derived from isobutylene, branched hexyl group derived from propylene dimer, branched octyl group derived from isobutylene dimer, derived from propylene trimer Branched noel groups derived from isobutylene trimers, branched dodecyl groups derived from propylene tetramers, etc.
  • a branched pentadecyl group derived from a pentamer of propylene particularly preferred is a tert-butyl group derived from isobutylene, a branched hexyl group derived from a dimer of propylene, or isobutylene.
  • Branched octyl group derived from dimer, branched nonyl group derived from propylene trimer, branched dodecyl group derived from isobutylene trimer, or derived from propylene tetramer Branched dodecyl groups are particularly preferred.
  • the lubricating composition of the present invention may contain (H) a phosphorus-based compound as the component (H) for improving the extreme pressure property.
  • hydrocarbon group having 2 to 30 carbon atoms examples include 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, and a decyl group.
  • the alkyl group may be linear or branched, and the position of substitution on the aryl group is arbitrary); benzyl group, phenylethyl group, phenylpropyl group, phenylbutyl group, phenylpentyl group, phenylhexyl group And other arylalkyl groups having 7 to 12 carbon atoms (these alkyl groups may be linear or branched).
  • Examples of the above-mentioned salts of the phosphoric acid esters and the phosphites include, for example, monoesters of phosphoric acid, diesters of phosphoric acid, monoesters of phosphites, diesters of phosphites, and the like. Salts, etc., in which a part or all of the remaining acidic hydrogen is neutralized by the action of a nitrogen-containing compound such as an amine compound containing only a hydrocarbon group or a hydroxyl group-containing hydrocarbon group of the formulas 1 to 8 in the molecule. Is mentioned.
  • the carboxylic acid oil agent may be a monobasic acid or a polybasic acid.
  • carboxylic acids include the monobasic acids and polybasic acids exemplified in the description of the ester oil agent. Of these, monobasic acids are preferred from the viewpoint of improving the friction characteristics.
  • the number of carbon atoms of the carboxylic acid oil agent is preferably 6 or more, more preferably 8 or more, and most preferably 10 or more, from the viewpoint of improving frictional characteristics. If the carbon number of the carboxylic acid oil agent is too large, precipitation and chewing may occur. Therefore, the carbon number is preferably 24 or less, more preferably 20 or less, and most preferably 18 or less.
  • tri- to hexa-hydric aliphatic polyhydric alcohols include glycerin, trimethylolpropane, erythritol, penyu erythritol, arabitol, sorbitol, mannitol and the like.
  • bimolecular condensates and trimolecular condensates of tri- to hexahydric aliphatic polyhydric alcohols include diglycerin, ditrimethylolpropane, dipentaerythritol, disorbitol, triglycerin, tritrimethylolpropane, and tripene erythritol And trisorbitol.
  • the number of hydrocarbon groups bonded to the nitrogen atom in the monoamine is not particularly limited, but is preferably 1 or 2 and more preferably 1 from the viewpoint of improving the friction characteristics. .
  • the fatty acid referred to here may be a linear fatty acid or a branched fatty acid, and may be a saturated fatty acid or an unsaturated fatty acid.
  • the number of carbon atoms is desirably 6 to 30, preferably 9 to 24.
  • this fatty acid examples include heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, pendecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pendecanoic acid, hexadecanoic acid, and hepdecanoic acid.
  • a straight chain fatty acid eg, coconut oil fatty acid
  • a straight chain fatty acid derived from glycerol or a mixture of a straight chain fatty acid and a branched fatty acid synthesized by the oxo method or the like is preferably used.
  • Specific examples of the nitrogen-containing compound to be reacted with the above fatty acid include ammonium; monomethylamine, monoethylamine, monopropylamine, monobtylamine, monopentylamine, monohexylamine, monoheptylamine, monooctyl.
  • Alkylamines such as dihexylamine, diheptylamine, and dioctylamine (the alkyl group may be linear or branched); monomethanolamine, monoethanolamine, monopropanolamine, monobutanolamine, monopen Equinolamine, monohexanolamine, monohepanolamine, monooctanolamine, monononanolamine, dimethanolamine, methanolethanolamine, diethanolamine, methanolpropanolamine, ethanolpropanolamine, diamine Alkanolamines such as propanolamine, methanolbutanolamine, ethanolbutanolamine, propanolamine,
  • polyhydric alcohol partial esters and aliphatic amides from the viewpoint of the effect of improving frictional properties.
  • R 1G3 represents a linear or branched alkyl group having 1 to 4 carbon atoms, preferably a methyl group or an ethyl group, and X represents 1 to 3, preferably 1 Or indicate the number 2.
  • R 1Q3 include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group and the like.
  • alkylbenzotriazole represented by the formula (49) a compound in which R 1 Q 3 is a methyl group or an ethyl group and X is 1 or 2 is preferable, in particular, from the viewpoint of excellent antioxidant properties.
  • methylbenzotriazole (tolyltriazole), dimethylbenzotriazole, ethylbenzotriazole, ethylmethylbenzotriazole, getylbenzotriazole or a mixture thereof can be used.
  • R 1D4 represents a linear or branched alkyl group having 1 to 4 carbon atoms, preferably a methyl group or an ethyl group
  • R 1Q5 represents a methylene group or an ethylene group
  • R 1Q6 and R 1Q7 may be the same or different, and represent a hydrogen atom or a linear or branched alkyl group having 1 to 18 carbon atoms, preferably a linear or branched alkyl group having 1 to 12 carbon atoms. It represents an alkyl group, and y represents a number of 0 to 3, preferably 0 or 1.
  • R1G3 examples include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, and a tert-butyl group.
  • R 1 G 4 is a methyl group
  • y is 0 or 1
  • R 1 Q 5 is a methylene group or an ethylene group
  • R 1 Q 6 and R 1 1 Q 7 is linear or branched dialkyl
  • Ruaminoarukiru base emission zone is an alkyl group of Bok Riazor Ya dialkylaminoalkyl Bok Lil Toriazoru, and mixtures thereof of number 1-1 2 carbon atoms are preferably used.
  • alkylaminoalkylbenzotriazoles include, for example, dimethylaminomethylbenzotriazole, getylaminomethylbenzotriazole, di (linear or branched) propylaminomethylbenzotriazole, Di (straight chain X is branched) butylaminomethylbenzotriazole, di (linear or branched) pentylaminomethylbenzotriazole, di (linear or branched) hexyl aminomethylbenzotriazole, di ( Heptylaminomethylbenzotriazole, di (linear or branched) octylaminomethylbenzotriazole, di (linear or branched) nonylaminomethylbenzotriazole, di (linear) Chain or branched) decylaminomethylbenzotriazole, di (straight chain or branched) pendecylamino Tylbenzotriazole, di (linear or branched) dodecyla
  • the content of triazole and / or its derivative (J), which is an optional component in the lubricating composition, is optional, but is preferably 0.01% by mass or more, based on the total amount of the composition. More preferably, it is 0.05% by mass or more. If the content is less than 0.01% by mass, the effect of improving the thermo-oxidative stability due to the inclusion of triazole and Z or a derivative thereof may be insufficient.
  • the content of triazole and / or a derivative thereof is preferably 1.0% by mass or less, more preferably 0.5% by mass or less, based on the total amount of the composition. If it exceeds 1.0% by mass, the effect of improving the thermal and oxidative stability corresponding to the content may not be obtained, which may be economically disadvantageous.
  • a rust inhibitor, a metal deactivator, and a dispersion of the component (B) may be further added, if necessary.
  • Various additives typified by a viscosity index improver other than the mold viscosity index improver, a detergent / dispersant, a pour point depressant, an antifoaming agent and the like may be contained alone or in combination of plural kinds.
  • the rust inhibitor include metal soaps such as fatty acid metal salts, lanolin fatty acid metal salts, and oxidized wax metal salts; polyhydric alcohol partial esters such as sorbin fatty acid esters; and esters such as lanolin fatty acid esters. Sulfonates such as calcium sulfonate and vacuum sulfonate; oxidized wax; amines; phosphoric acid; and phosphates.
  • one or two or more compounds arbitrarily selected from these rust inhibitors can be contained in an arbitrary amount, but usually, the content is determined by the lubricating composition. Desirably, it is 0.01 to 1% by mass based on the total amount of the substance.
  • the metal deactivator include imidazole compounds and the like in addition to the benzotriazole compounds mentioned as the component (J).
  • one or two or more compounds arbitrarily selected from these metal deactivators can be contained in an arbitrary amount. Desirably, it is 0.001-1% by mass based on the total amount of the lubricating composition.
  • the viscosity index improver other than the dispersion type viscosity index improver as the component (B) specifically, a copolymer of one or more monomers selected from various methacrylates or a water copolymer thereof is used.
  • Additive, ethylene- ⁇ -olefin copolymer examples include propylene, 1-butene, 1-pentene, etc.
  • examples of olefin include propylene, 1-butene, 1-pentene, etc.
  • styrene-hydrogenated copolymers So-called non-dispersion type viscosity index improvers such as polymers and polyalkylstyrenes can be exemplified.
  • Examples of the detergent and dispersant other than the dispersion type viscosity index improver (C) include alkenyl octanoic acid imide, sulfonate, salicylate, and phenate.
  • One or two or more compounds selected arbitrarily from among these viscosity index improvers and detergent dispersants can be contained in an arbitrary amount. The content thereof is desirably 0.01 to 10% by mass based on the total amount of the lubricating composition.
  • the pour point depressant include a copolymer of one or more monomers selected from various acrylates and methacrylates or a hydrogenated product thereof.
  • One or more compounds selected arbitrarily from among these pour point depressants can be contained in an arbitrary amount, but the content is usually 0 based on the total amount of the lubricating composition. 0.1 to 5% by mass is desirable.
  • the antifoaming agent include silicones such as dimethyl silicone and fluorosilicone.
  • one or more compounds arbitrarily selected from these defoaming agents can be contained in an arbitrary amount. It is desirably 0.0001 to 0.05 mass% based on the total amount of the substance.
  • the lubricating composition of the present invention is suitable for a gear oil composition, a lubricating oil composition for a paper machine, a lubricating oil composition for a sliding guide surface (sliding surface), etc., for various industrial machines, vehicles, It is used for railway vehicles, etc., but it can also be used as hydraulic oil, e.g., bottle oil, compressor oil, bearing oil, etc., especially as hydraulic oil.
  • hydraulic fluid As a hydraulic fluid, it is more effective when used as a hydraulic fluid for hydraulic equipment such as injection molding machines, machine tools, construction machinery, steelmaking equipment, industrial pots, and hydraulic elevators. Industrial applicability
  • the composition of the present invention is useful as a lubricating composition for industrial machinery and equipment, and in particular, any of the mineral oils, fats and oils, synthetic oils and mixed oils of the present invention as base oils.
  • the lubricating composition for industrial machinery and equipment containing the component (A), the component (B) or the component (C) is a gear oil composition, a lubricating oil composition for a paper machine or a slip guide surface. It is useful as a lubricating oil composition for use.
  • any one selected from the mineral oils, fats and oils, synthetic oils and mixed oils thereof of the present invention is used as a base oil, and the following (A) component (A-1) a phosphorus-containing carboxylic acid compound and / or A— 2) Lubricity for industrial machinery and equipment containing a thiophosphate and a dispersant viscosity index improver as component (B), or instead of ester oily agent as component (D)
  • the composition is useful as a lubricant, especially as a hydraulic fluid.
  • Component (C-1) at least one compound represented by the following general formulas (1) to (3):
  • R 1 is an alkyl group having 6 to 30 carbon atoms or an alkenyl group having 6 to 30 carbon atoms
  • R 2 is an alkyl group having 1 to 4 carbon atoms
  • X 1 is hydrogen, and 1 to 30 carbon atoms.
  • R 1 — CO— NR 2-(CH 2 ) n — COO] (2) (wherein, R 1 is an alkyl group having 6 to 30 carbon atoms or an alkenyl group having 6 to 30 carbon atoms, and R 2 is 1 carbon atom.
  • R 1 is an alkyl group having 6 to 30 carbon atoms or an alkenyl group having 6 to 30 carbon atoms
  • R 2 is 1 carbon atom.
  • Y 1 is an alkali metal or an alkaline earth metal
  • n is an integer of 1 to 4
  • m is 1 when Y 1 is an alkali metal, and 2 when Y 1 is an alkaline earth metal.
  • R 1 is an alkyl group having 6 to 30 carbon atoms or an alkenyl having 6 to 30 carbon atoms
  • R 2 is an alkyl group having 1 to 4 carbon atoms
  • Z is a residue of a dihydric or higher polyhydric alcohol excluding the hydroxyl group
  • m is an integer of 1 or more
  • n is an integer from 1 to 4.
  • Component (C-1) a compound represented by the following general formula (4) R 3 -CH 2 COOH General formula (4)
  • R 3 is an alkyl group having 7 to 29 carbon atoms, an alkenyl group having 7 to 29 carbon atoms, or a group represented by the general formula (5).
  • R 4 —C 6 H 4 0-(5) (wherein, R 4 represents an alkyl group having 1 to 20 carbon atoms or hydrogen)
  • This embodiment is an embodiment of a gear oil obtained by blending the component (C-11), the component (C-2), or a mixture thereof with the base oil.
  • Base oil 1 Solvent-refined paraffinic mineral oil (kinematic viscosity 150 mm 2 / s (40 ° C), viscosity index 95)
  • Base oil 2 1-decene oligomer (kinematic viscosity 150 min 2 / s (at 40), viscosity index 1 40)
  • Base oil 3 Polyol ester obtained using a mixture of pentaerythritol and dipentaerythritol and a linear saturated fatty acid having 5 to 12 carbon atoms
  • E 1 2,5-bis (n-nonyldithio) -1,3,4-thiadiazole
  • E 2 Zinc dioctyldithiophosphate (ZnDTP)
  • the gear oil composition of this embodiment is excellent in energy saving. Therefore, in response to gear units used in various types of high-efficiency, low-cost industrial machines, the use of high-speed and high-output gear oils will enable more energy-saving operation.
  • Example 1 2 3 4 5 Base oil 1 99.19 98.17 98.99 98.15 98.85 2
  • C-one component C-1-1 C-1-1.
  • IAE oil temperature (° C) 1 30 1 34 .123 1 27 1 20 Timken 0K load 1 5 24 55 1 5 45 (lb)
  • This example is an example of an embodiment relating to a gear oil in which the base oil is blended with the dispersion type viscosity index improver of the component (B).
  • the demulsifying property at 82 was measured.
  • Base oil 3 polyol ester obtained by using a mixture of pentaerythritol and dipentaerythritol and a linear saturated fatty acid having 5 to 12 carbon atoms (kinematic viscosity: 150 mmVs (40 ° C), viscosity index: 120 ),
  • B 1 Copolymer of C18 alkyl methacrylate (90 mol%) and morpholinoethyl methacrylate (10 mol%) (number average molecular weight 80,000),
  • B 2 Copolymer of C18 C18 alkyl methacrylate (90 mol%) and benzoylaminomethacrylate (10 mol%) (number average molecular weight 70,000).
  • NPA N-2-1—Nonylphenoxyacetic acid
  • E1 2,5-bis (n-nonyldithio) 1-1,3,4-thiadiazole
  • E2 zinc dioctyldithiophosphate (ZnDTP).
  • TCP tricresyl phosphate
  • Imide Monotype polybutenyl succinimide obtained by the reaction of polybutenyl succinic anhydride with tetraethylene penamine.
  • the gear oil composition of this embodiment is excellent in sludge resistance and water separation. Therefore, in response to gear units used in various types of high-efficiency, low-cost industrial machinery, gear oils are more resistant to higher temperatures, combined with the trend toward higher speeds and higher power. It is possible to withstand operation at a higher load.
  • Example 1 2 3 4 5 Base oil 1 96.1 98.5 99.09 98.97 98.89 2
  • Example 6 7 8 9 Base oil 1 98.95 98.65 ⁇ ⁇
  • IAE oil temperature (° C) 1 2 7 1 2 5 1 2 9 1 1 9 Demulsifying properties 40-40-0 (20) 40-40-0 (20) 40-40-0 (15) 41-38- 1 (30) 3]
  • This embodiment is directed to a gear oil obtained by blending the base oil with a phosphorus-containing carboxylic acid compound of the component (A-1), a thiophosphate of the component (A-2), or a mixture thereof. This is an example.
  • FZG tests were performed in accordance with ASTM D 5182-91 to evaluate the extreme pressure properties of each lubricating oil composition. In the evaluation, the failed stage was used as an index.
  • JI S K2540 Evaluation of the effect of lubricating oil on the suppression of sludge formation was conducted in accordance with the 1989 “Lubricant Thermal Stability Test”. That is, 45 g of the lubricating oil described in the table was placed in a 50 ml beaker, copper and iron catalysts were placed therein, and the mixture was allowed to stand in a 140 ° C air bath for 240 hours, and then the amount of sludge in the sample oil was measured. The amount of generated sludge was determined by diluting the lubricating oil after the test with n-hexane, filtering through a 0.8 ⁇ m membrane filter, and measuring the weight of the collected matter. The copper and iron catalysts used in the turbine oil oxidation stability test (JIS K2514) were cut into 8 rolls (about 3.5 cm in length).
  • Base oil 1 Solvent refined paraffinic mineral oil (Kinematic viscosity 150mmVs (40 ° C), viscosity index (Number 95),
  • Base oil 2 1-decene oligomer (kinematic viscosity 15 OmmVs (40 ⁇ :), viscosity index 140),
  • Base oil 3 Polyol ester obtained using a mixture of pentaerythritol and dipentyl erythritol and a straight-chain saturated fatty acid having 5 to 12 carbon atoms
  • A-1-2 / 3 dithiophosphorylated ethyl propionate.
  • A-2-1 Triphenylphosphorothionate.
  • B 1 Copolymer of C18 alkyl methacrylate (90 mol%) and morpholinoethyl methacrylate (10 mol%) (number average molecular weight 80,000),
  • B 2 Copolymer of C1-C18 alkyl methacrylate (90 mol3 ⁇ 4) and benzoylamino methacrylate (10 mol%) (number average molecular weight 70,000).
  • E1 2,5-bis (n-nonyldithio) -1,3,4-thiadiazole
  • E2 zinc dioctyldithiophosphate (ZnDTP).
  • TCP tricresyl phosphate
  • the gear oil composition of this embodiment is excellent in sludge resistance performance and extreme pressure resistance. Therefore, in response to gear units used in various types of high-efficiency, low-cost industrial machinery, gear oils are used at higher speeds and with higher power output, so they can withstand higher temperatures and operate at higher loads. It is possible to endure.
  • Example 1 2 3 4 5 Base oil 1 99.18 99.0 99.0 99.0 98.9 2
  • Example 6 7 8 9 10 Base oil 1 98.98 98.75 99.07 98.77 98.87
  • IAE oil temperature (° C) 143 140 1 28 13 1 1 25 Timken 0K load 21 (lb) 40 (lb) 24 (lb) 35 (lb) 55 (lb) 3]
  • Example 1 1 12 1 3 14 15 Base oil 1 98.75 98.45
  • the present example is an example of an embodiment relating to a lubricating oil for a paper machine in which the component (C-1), the component (C-12) or a mixture thereof is blended with the base oil.
  • the embodiment will be further described with reference to examples.
  • the pin (journal) is made of steel with an outer diameter of 6.35 mm (IX 4 inches) and a length of 3.1.7 mm (1.1 times 4 inches).
  • the V-shaped block has an angle of 96 degrees. Steel was used.
  • the test conditions were a rotation speed of 100 rpm, a Direct Load of 1 001 bs, and a test time of 10 hours.
  • the effect of lubricating oil on the formation of sludge was evaluated according to JIS K2 540-1 989, “Test method for thermal stability of lubricating oil”. That is, 45 g of the lubricating oil shown in the table was placed in a 50 ml peaker, copper and iron catalysts were put therein, left in a thermostat at 150 ° C. for 120 hours, and the amount of sludge in the sample oil was measured. The amount of sludge generated was determined by diluting the lubricating oil after the test with n-hexane, filtering through a 0.8 am membrane filter, and measuring the weight of the collected matter. The copper and iron catalysts used were those obtained by cutting the catalyst used in the tarpin oil oxidation stability test (JIS K2 514) into eight volumes (about 3.5 cm in length). (Anti-corrosion: Stop test)
  • the stopping test was carried out using the test method specified in JISK 2510 “Testing method for anti-rust performance of lubricating oil” which was improved for evaluating the anti-corrosion property of lubricating oil for paper machines.
  • the difference is that when evaluating ordinary lubricating oils, distilled water or artificial seawater However, when evaluating lubricating oil for paper machines, artificial white water was used instead.
  • Base oil 1 solvent refined paraffinic mineral oil (kinematic viscosity 22 OmmVs (40 ° C), viscosity index 95),
  • Base Oil 2 1-decene oligomer (kinematic viscosity 220 negation 2 / s (40 ° C), viscosity index 1 40),
  • Base oil 3 Polyol ester obtained using a mixture of pentaerythritol and dipentaerythritol and a linear saturated fatty acid having 5 to 12 carbon atoms (kinematic viscosity: 220 mm 2 / s (40), viscosity index: 120).
  • C-1-1 N-oleoyl sarcosine.
  • NPA Nonylphenoxyacetic acid
  • E1 2,5-bis (n-nonyldithio) 1-1,3,4-thiadiazol
  • E2 zinc dioctyldithiophosphate (ZnDTP).
  • TCP tricresyl phosphate
  • the lubricating oil composition for a paper machine of the present embodiment is excellent in heat resistance, abrasion resistance and corrosion resistance at the same time. Therefore, it is a lubricating oil composition for making paper that can respond to the recent development of paper machines. 1]
  • Example 1 2 3 4 5 Base oil 1 99.19 98.17 98.99 99.15 98.85 2
  • C-1 component C-1-1 C-1-1 C-1-1 C-1-1
  • the present example is an example of an embodiment relating to a lubricating oil for a paper machine in which a dispersion viscosity index improver of component (B) is blended with the base oil.
  • the pin (journal) is made of steel with an outer diameter of 6.35 mm (1/4 inch) and a length of 3.1.75 mm (1 ⁇ 14 inch). Steel was used. Test conditions were as follows: rotation speed 1 000 rpm, Direct Load 100 lbs, test time 16 hours.
  • the stopping test was conducted using the test method specified in JISK 2510 “Testing method for anti-corrosion performance of lubricating oil” which was modified for evaluating the anti-corrosion property of lubricating oil for paper machines. The difference is that when evaluating ordinary lubricating oils, distilled water or artificial seawater However, when evaluating lubricating oil for paper machines, artificial white water was used instead.
  • the demulsifying property was measured at 82.
  • artificial white water was used instead of distilled water.
  • Base oil 1 Solvent refined paraffinic mineral oil (kinematic viscosity 220 Vs (40 ° C), viscosity index 95),
  • Base oil 2 1-decene oligomer (kinematic viscosity 220 mm 2 / s (40), viscosity index 140),
  • Base oil 3 Polyol ester obtained using a mixture of pentaerythritol and dipentyl erythritol and a linear saturated fatty acid having 5 to 12 carbon atoms
  • B 1 Copolymer of C 1 -C 18 alkyl methacrylate (9 OHIO) and morpholinoethyl methacrylate (10 mol%) (number average molecular weight 80,000),
  • B 2 Copolymer of C1-C18 alkyl methacrylate (90 ol3 ⁇ 4) and benzoylamino methacrylate (10 mol%) (number average molecular weight 70,000),
  • NPA N-2-1—Nonylphenoxyacetic acid
  • E 1 2,5-bis (n-nonyldithio) -1,3,4-thiadiazole
  • E 2 zinc dioctyldithiophosphate (ZnDTP).
  • Imide Monotype polybutenyl succinimide obtained by the reaction of polybutenyl succinic anhydride with tetraethylene penamine.
  • the lubricating oil composition for a paper machine of the present embodiment has excellent heat resistance, abrasion resistance and corrosion resistance at the same time. Therefore, it is a lubricating oil composition for making paper that can respond to the recent development of paper machines.
  • Example 1 2 3 4 5 Base oil 1 96.1 98.5 99.09 98.97 98.89 2
  • the present embodiment relates to a lubricating oil for a paper machine obtained by blending the base oil with a phosphorus-containing carboxylic acid compound of the component (A-1), a thiophosphate of the component (A-12), or a mixture thereof. It is an example of an embodiment.
  • the pin (journal) is made of steel with an outer diameter of 6.35 mm (1/4 inch) and a length of 3.1.75 mm (1/1/4 inch).
  • the angle of the V-type block is 96 mm. Degree steel was used.
  • the test conditions were a rotation speed of 100 rpm, a Direct Load of 100 lb's, and a test time of 16 hours.
  • the stopping test is a test method improved from the test specified in JISK 2510 “Lubricant rust prevention performance test method” for evaluating the anti-corrosion properties of lubricating oil for paper machines. went. The difference is that distilled water or artificial seawater is used when evaluating ordinary lubricating oils, but when evaluating lubricating oils for paper machines, artificial white water was used instead of these, and the test time was set to 2 hours.
  • Base oil 1 solvent refined paraffinic mineral oil (kinematic viscosity 22 OmmVs (40 ° C), viscosity index 95),
  • Base Oil 3 Pen evening erythritol and Jipen evening mixture and the polyol ester obtained by using a linear saturated fatty acid having 5 to 12 carbon atoms erythritol (kinematic viscosity 220 negation 2 / s (40 ° C) , viscosity index 120 ).
  • B 1 copolymer of C18 alkyl methacrylate (90 mol%) and morpholinoethyl methacrylate (10 mol%) (number average molecular weight 80,000),
  • B 2 Copolymer of C1-C18 alkyl methacrylate (90mol3 ⁇ 4) and benzoylaminomethacrylate (10mol%) (number average molecular weight 70,000).
  • N-2-1 Nonylphenoxyacetic acid (NPA)
  • E1 2,5—bis (n-nonyldithio) -1,3,4-thiadiazol
  • E2 zinc dioctyldithiophosphate (ZnDTP).
  • Other additives :
  • the lubricating oil composition for a paper machine of the present embodiment has excellent heat resistance, abrasion resistance and corrosion resistance at the same time. Therefore, it is a lubricating oil composition for making paper that can respond to the recent development of paper machines.
  • Example 1 2 3 4 5 Base oil 1 99.18 99.0 99.0 99.0 98.9 2
  • A-2 component A-2-1 A-2-1 '
  • Example 1 1 1 2 1 3 1 4 1 5 Base oil 1 98.75 98.45 ⁇ 11

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  • Lubricants (AREA)

Abstract

Il est prévu une composition de lubrification pour machines et équipements industriels comprenant une huile de base sélectionnée parmi des huiles minérales, des graisses et des huiles, des huiles synthétiques, et des mélanges de deux éléments ou davantage de ces derniers, et d’au moins un additif sélectionné parmi les composants suivants (A) à (D) : (A): (A-1) un acide carboxylique contenant du phosphore et/ou (A-2) un ester thio phosphorique (B) : un renforçateur d’indice de viscosité de dispersant, (C): (C-1) un acide amido carboxylique spécifique et/ou (C-2) un acide carboxylique spécifique, et (D) : un renforçateur d’onctuosité d’ester. La composition est favorable comme composition d’huile de lubrification et sert de composition d’huile d’engrenage, composition d’huile de lubrification pour machines à papier ou guides d’entraînement, huile hydraulique ou équivalent.
PCT/JP2005/006410 2004-03-25 2005-03-25 Composition d’huile de lubrification pour machines et équipements industriels WO2005093020A1 (fr)

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