WO2018155601A1 - Additif pour huile lubrifiante et son procédé de production - Google Patents

Additif pour huile lubrifiante et son procédé de production Download PDF

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Publication number
WO2018155601A1
WO2018155601A1 PCT/JP2018/006596 JP2018006596W WO2018155601A1 WO 2018155601 A1 WO2018155601 A1 WO 2018155601A1 JP 2018006596 W JP2018006596 W JP 2018006596W WO 2018155601 A1 WO2018155601 A1 WO 2018155601A1
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WO
WIPO (PCT)
Prior art keywords
lubricating oil
oil additive
additive according
antioxidant
thiadiazole
Prior art date
Application number
PCT/JP2018/006596
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English (en)
Japanese (ja)
Inventor
智之 園田
Original Assignee
株式会社Ｓｏｎｏｄａ
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
Application filed by 株式会社Ｓｏｎｏｄａ filed Critical 株式会社Ｓｏｎｏｄａ
Priority to EP18758457.8A priority Critical patent/EP3587542B1/fr
Priority to AU2018224752A priority patent/AU2018224752B2/en
Priority to SG11201907681QA priority patent/SG11201907681QA/en
Priority to JP2018527256A priority patent/JP6465536B2/ja
Priority to CN201880012065.4A priority patent/CN110300796A/zh
Priority to KR1020197023655A priority patent/KR102345529B1/ko
Priority to US16/484,276 priority patent/US20200002639A1/en
Publication of WO2018155601A1 publication Critical patent/WO2018155601A1/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
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular 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
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/08—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aliphatic monomer having more than 4 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
    • C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/38—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
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
    • C10M129/10—Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/16—Amides; Imides
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C10M133/56—Amides; Imides
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
    • C10M135/10—Sulfonic acids or derivatives thereof
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
    • C10M135/36—Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon with nitrogen or oxygen
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    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
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    • 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
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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    • 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
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    • 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
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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    • C10N2030/54—Fuel economy
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    • C10N2030/76—Reduction of noise, shudder, or vibrations
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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
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    • C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
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    • C10N2040/045—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for continuous variable transmission [CVT]
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    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
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    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • the present invention relates to a lubricant additive and a method for producing a lubricant additive.
  • lubricating oil used for smooth operation of an engine, a gear (transmission), a differential gear (differential device) and the like of a vehicle such as an automobile is known.
  • Various additives are blended depending on the use of the lubricating oil for the purpose of enhancing and improving the lubricating performance of the lubricating oil.
  • the additive for lubricating oil (hereinafter, also simply referred to as “lubricating oil additive”) include an antiwear agent, a friction modifier, a cleaning dispersant, a viscosity index improver, an extreme pressure agent, and an antioxidant.
  • the additive suitable for the said use is selected from these several types of additives according to the use of lubricating oil, and is mix
  • Various inventions have been made regarding such lubricating oil additives (see, for example, Patent Documents 1 and 2).
  • Patent Document 1 includes a high-molecular-weight lubricating part that can be dissolved in a base oil of a lubricating oil, and a pair of adsorbing parts that have a functional group that can be adsorbed to a material and are coupled to the lubricating part so as to sandwich the lubricating part.
  • a lubricating oil additive is disclosed.
  • a pair of adsorbing portions are adsorbed on a material, and a high molecular weight lubricating portion that can be dissolved in a base oil sandwiched between the adsorbing portions remains between the materials.
  • the lubrication part and each adsorption part between these materials play a role as an oiliness improver, whereby an excellent friction reducing effect is obtained.
  • a dialkyl monoether kinematic viscosity at 100 ° C. is 0.50 ⁇ 2.50mm 2 / s (A )
  • poly - ⁇ - olefin kinematic viscosity at 100 ° C. is 50 mm 2 / s or more
  • a lubricating oil composition comprising at least a base oil containing (B) and having a kinematic viscosity at 100 ° C. of 6.00 mm 2 / s or less is disclosed.
  • Patent Document 2 Although it is low in viscosity, it has excellent viscosity-temperature characteristics, low-temperature fluidity, and evaporation characteristics, good shear stability and oxidation stability, and organic materials such as rubber swell. The effect of being difficult is obtained.
  • the lubricant additive is generated by selecting and blending an additive suitable for the use of the lubricant from a plurality of types of additives. Therefore, for example, the lubricant additive for engines and the lubricant additive for gears are different, and the lubricant additive for engines is not necessarily a lubricant additive suitable for gears. Therefore, when the user tries to apply the lubricating oil to each device of the vehicle, there is a problem that a lubricating oil additive must be prepared for each device.
  • the conventional invention is generally an invention aimed at improving the performance of individual lubricating oil additives, and solves the above problems. I wouldn't.
  • This invention is made
  • a lubricating oil additive according to the present invention is a lubricating oil additive added to a lubricating oil, and includes a polyol ester synthetic base oil and calcium carbonate having a calcite crystal structure. It includes a calcium sulfonate, a poly ⁇ -olefin oligomer, a zinc dithiophosphate antioxidant, a succinimide, a thiadiazole extreme pressure agent, and a phenol antioxidant.
  • a method for producing a lubricating oil additive according to the present invention is a method for producing a lubricating oil additive to be added to a lubricating oil, comprising a polyol ester synthetic base oil and a poly ⁇
  • a third step of mixing a calcium sulfonate salt containing calcium carbonate having a structure is
  • composition of lubricating oil additive is composed of the following components A to G.
  • Component A used in the lubricating oil additive according to the present embodiment is a kind of ester base oil, and has a low pour point, a high viscosity index, a high flash point, and excellent thermal stability and oxidation stability. It is a polyol ester-based synthetic base oil. Specifically, tri (caprylic acid / capric acid) trimethylolpropane which is a single substance fatty acid ester in which two kinds of fatty acids are combined.
  • the content of the component A in the lubricating oil additive is 25.0 wt% or more and 75.0 wt% or less, more preferably 35.0 wt% or more and 60.0 wt% or less.
  • Component A is not limited to the above tri (caprylic acid / capric acid) trimethylolpropane.
  • Other fatty acids such as pelargonic acid, undecanoic acid, and laurin, which are linear saturated fatty acids having 8 to 18 carbon atoms (hereinafter, excluding caprylic acid having 8 carbon atoms and capric acid having 10 carbon atoms).
  • Component B used in the lubricating oil additive according to this embodiment is called a poly ⁇ -olefin (PAO) oligomer obtained by polymerizing a known ⁇ -olefin.
  • PAO poly ⁇ -olefin
  • Alpha olefin oligomers high viscosity PAO are used.
  • the known ⁇ -olefin is, for example, an ⁇ -olefin having 2 to 20 carbon atoms, and specifically includes ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1 -Nonene, 1-decene, 1-undecene, 1-dodecene, 1-tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene or 1-icosene, Polymerize alone or in combination.
  • Poly ⁇ -olefin oligomer has a uniform molecular structure that does not contain unsaturated double bonds or sulfur, etc., although it has a composition close to that of mineral oil, high temperature thermal stability, shear stability, low pour point (low temperature fluidity) , High viscosity index, high flash point.
  • a three-dimensional structure poly ⁇ -olefin oligomer produced using a metallocene catalyst is preferable, and this poly ⁇ -olefin oligomer is compared with one having a straight-chain structure produced using another catalyst. The viscosity is difficult to drop.
  • the content of the component B in the lubricating oil additive is 10.0% by weight or more and 50.0% by weight or less, and more preferably 10.0% by weight or more and 30.0% by weight or less.
  • the component B is not limited to the above-mentioned poly ⁇ -olefin oligomer having a three-dimensional structure.
  • Other viscosity index improvers such as polyalkyl methacrylate, ethylene / propylene copolymer, styrene / butadiene copolymer, and the like, may be blended.
  • Component C used in the lubricating oil additive according to the present embodiment is a zinc dithiophosphate antioxidant mainly composed of zinc dithiophosphate, and has a characteristic that it can exhibit performance in a relatively low temperature region.
  • it refers to an antioxidant mainly composed of zinc dithiophosphate having a primary alkyl group.
  • This primary alkyl group zinc dithiophosphate has very good anti-wear properties compared to secondary alkyl groups and tertiary alkyl group zinc dithiophosphates. Specifically, zinc 2-ethylhexyl dithiophosphate.
  • the content of the component C in the lubricating oil additive is 0.5 wt% or more and 3.0 wt% or less, more preferably 1.0 wt% or more and 2.0 wt% or less.
  • Component C is not limited to the above zinc 2-ethylhexyl dithiophosphate.
  • Other antioxidants for example, dialkyl such as zinc dipropyl dithiophosphate, zinc dibutyl dithiophosphate, zinc dipentyl dithiophosphate, zinc diheptyl dithiophosphate, zinc dioctyl dithiophosphate, zinc didecyl dithiophosphate or zinc didodecyl dithiophosphate
  • Zinc dithiophosphate (ZnDTP) may be blended alone or in combination.
  • component A when a diester synthetic base oil is blended as component A, it is preferable to contain zinc dipropyldithiophosphate, zinc dibutyldithiophosphate, or zinc dioctyldithiophosphate alone or in combination.
  • Component D used in the lubricating oil additive according to the present embodiment is a dispersant called alkenyl or alkyl succinimide having a characteristic of dispersing sludge and soot at low temperatures in the oil.
  • the alkenyl or alkyl succinimide has an effect of helping the solubility of each additive to be added and increasing the durability of the performance.
  • it particularly refers to polyisobutenyl succinimide having a nitrogen content of 1.0 to 2.0%.
  • the content of the component D in the lubricating oil additive is 3.0% by weight or more and 10.0% by weight or less, more preferably 4.0% by weight or more and 6.0% by weight or less.
  • Component D is not limited to the above polyisobutenyl succinimide. Other alkenyl or alkyl succinimide may be blended alone or in combination.
  • Component E used in the lubricating oil additive according to this embodiment is a thiadiazole-based extreme pressure agent called a thiadiazole (benzobis) derivative, which reduces friction and wear between two metal surfaces and prevents seizure. It also has a feature as an antiwear agent.
  • the thiadiazole derivative used in the present embodiment is a dimercaptothiadiazole derivative, specifically 2,5-dimercapto-1,3,4-thiadiazole, 4,5-dimercaptothiadiazole, 3,5-dimercapto. -1,2,4-thiadiazole or 3,4-dimercapto-1,2,5-thiadiazole is used alone or in combination.
  • the content of the component E in the lubricating oil additive is 1.0% by weight or more and 6.0% by weight or less, and more preferably 2.0% by weight or more and 4.0% by weight or less.
  • the component E is not limited to the dimercaptothiadiazole derivative described above.
  • Other extreme pressure agents such as triazole derivatives may be blended.
  • a sulfur-based extreme pressure such as a sulfurized fatty acid ester containing a sulfur element instead of a thiadiazole derivative.
  • the formulation of the agent is preferred.
  • the content in the lubricating oil additive is 1.0% by weight or more and 9.0% by weight or less, and more preferably 4.0% by weight or more and 8.0% by weight or less.
  • Component F used in the lubricating oil additive according to the present embodiment is a phenolic antioxidant blended from the viewpoint of preventing oxidation and preventing sludge formation. Specifically, for example, it is generally used as a phenolic antioxidant. 2,6-di-tert-butyl-4-methylphenol used in
  • the content of the component F in the lubricating oil additive is 0.1 wt% or more and 2.0 wt% or less, more preferably 0.1 wt% or more and 1.5 wt% or less.
  • Component F is not limited to the above 2,6-di-tert-butyl-4-methylphenol. You may mix
  • Component G used in the lubricating oil additive according to this embodiment is a detergent called an overbased calcium sulfonate that is usually used for industrial lubricating oil and contains calcium carbonate and calcium hydroxide. Specifically, a calcium sulfonate salt containing a large amount of calcium carbonate having a calcite crystal structure is used. That is, the calcium sulfonate salt used in the present embodiment is a calcium sulfonate salt containing calcium carbonate having a calcite crystal structure and having a calcium metal content of 2.0 to 12.0% by weight. Total Basic Number) is 15 to 500.
  • a calcium sulfonate salt containing a large amount of calcium carbonate having a calcite crystal structure is superior in lubricating performance as compared to a calcium sulfonate salt containing a large amount of calcium carbonate having an aragonite crystal structure.
  • the content of the component G in the lubricating oil additive is 5% by weight to 30% by weight, and more preferably 10% by weight to 20% by weight.
  • FIG. 1 is a flowchart showing an example of a method for producing a lubricating oil additive according to the present embodiment.
  • the lubricant additive according to the embodiment of the present invention is manufactured by steps S1 to S3 (first step to third step) shown in FIG.
  • step S1 first step
  • step S2 second process
  • component C, component D, component E, and component F are mixed in this order with component A and component B mixed in step S1, and these components C to C are mixed in a predetermined container.
  • F is dissolved (step S3).
  • step S3 third step
  • the lubricating oil additive according to this embodiment is manufactured through the first to third steps described above.
  • Lubricating oil additives P1 to P4 according to this example are manufactured by blending the above components A to G in the proportions shown in Table 1 below. Note that the lubricating oil additive Sa as a reference example was prepared by blending the components A to G with the above component G being 0% by weight.
  • Table 2 shows conventional additives from other companies, lubricating oil additive Sa as a reference example, and lubricating oil additives P1 to P4 according to this example for ATF alone for commercial vehicles and ATF for commercial vehicles. Each shows a comparative example with the case where 7% of the total amount of ATF is added.
  • the test conditions (rotation speed, load, time, temperature) of the shell four-ball load resistance test according to Table 2 are 1200 rpm, 294 N (30 kg), 60 minutes, and 75 ° C., respectively.
  • Table 3 shows the conventional additives for other companies, the lubricant additive Sa as a reference example, and the lubricant additives P1 to P4 according to the present embodiment for CVTF alone for commercial vehicles and CVTF for commercial vehicles. Each shows a comparative example with the case where 7% of the total amount of the CVTF is added.
  • the test conditions (rotation speed, load, time, temperature) of the shell four-ball load resistance test according to Table 3 are 1200 rpm, 294 N (30 kg), 60 minutes, and 75 ° C., respectively.
  • Table 4 a conventional diesel engine oil for a commercial vehicle, a conventional additive for other companies, a lubricating oil additive Sa as a reference example for the commercial diesel engine oil, and a lubricating oil addition according to this example
  • a comparative example is shown in which each of the agents P1 to P4 is added at 10% of the total amount of the diesel engine oil.
  • the test conditions (rotation speed, load, time, temperature) of the shell four-ball load resistance test according to Table 4 are 1200 rpm, 392 N (40 kg), 60 minutes, and 75 ° C., respectively.
  • the lubricating oil additive Sa as a reference example and the lubricating oil additives P1 to P4 according to the present embodiment are shown for the suspension oil for a commercial vehicle alone and the suspension oil for a commercial vehicle, respectively.
  • the comparative example with the case where 10% of the total amount of suspension oil is added is shown.
  • the test conditions (rotation speed, load, time, temperature) of the shell four-ball load resistance test according to Table 5 are 1200 rpm, 392 N (40 kg), 60 minutes, and 75 ° C., respectively.
  • the effect is particularly apparent when the component G, that is, the calcium sulfonate salt containing calcium carbonate having a calcite crystal structure is 5.0 wt% or more and 30.0 wt%.
  • the wear scar diameter of the shell four-ball wear test is remarkably small and the wear resistance performance is improved as compared with the case where the component G is 0.0% by weight.
  • the wear scar diameter of the shell four-ball wear test is shorter than when the component G is 5.0% by weight, and when the component G is 20.0% by weight.
  • the wear scar diameter is the same or short.
  • the numerical value of the wear scar diameter in the shell four-ball wear test is the same or longer when the component G is 20.0% by weight.
  • the content of the component G is more preferably based on the results of the shell four-ball wear test. Is from 10.0% to 20.0% by weight.
  • Table 6 shows a second comparative example in which the lubricating oil additive according to this example was added to a commercially available gear oil for industrial machinery.
  • the lubricating oil additive Sa as a reference example and the lubricating oil additives P1 to P4 according to the present example were added to the commercially available gear oil for industrial machinery and the commercially available gear oil for industrial machinery.
  • the comparative example with the case where 10% of the total amount is added is shown.
  • the test conditions (rotation speed, load, time, temperature) of the shell four-ball load resistance test according to Table 6 are 1200 rpm, 392 N (40 kg), 60 minutes, and 75 ° C., respectively.
  • the shell four-ball load capacity is compared with the lubricating oil additive Sa as a reference example. It was found that the wear scar diameter during the test was shorter than that before the addition. That is, it was found that excellent wear performance was achieved for gear oil for industrial machinery. The effect is particularly apparent when the component G, that is, the calcium sulfonate salt containing calcium carbonate having a calcite crystal structure is 5.0 wt% or more and 30.0 wt%.
  • Table 7 shows a third comparative example in which the lubricant additive according to the present example is added to the predetermined first base oil.
  • Table 7 the comparative example at the time of adding 10% of the total amount of the said 1st base oil to the lubricating oil additive P2 which concerns on a present Example with respect to a commercially available 1st base oil and a commercially available 1st base oil is shown.
  • a ratio of measured values of operating time La (unit: h) until bearing failure to bearing theoretical life time Lo (unit: h) when a life evaluation test of a thrust ball bearing based on the Weibull distribution is performed (Unit: dimensionless) and calculated values (unit: dimensionless) of La (actual measured value) / La (measured value of only the first base oil) are shown.
  • the test conditions (thrust ball bearing, rotation speed, load) of the bearing life evaluation test according to Table 7 are # 51104, 750 rpm, and 4.4 kN, respectively.
  • the bearing life time is 4.67 times and a large performance improvement is realized. I understood.
  • Table 8 shows a fourth comparative example in which the lubricant additive according to this example is added to the predetermined second base oil.
  • the lubricating oil additive can be comprehensively applied to vehicle lubricating oil and industrial lubricating oil (excluding metal processing oil). . Therefore, when the user tries to apply lubricating oil to each device of the vehicle, it solves the problem that a lubricating oil additive must be prepared for each device, and at the same time achieves both energy saving and resource saving that are currently required by society Can be aimed at improving the global environment.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)

Abstract

Cette invention concerne un additif pour huile lubrifiante conçu pour être ajouté à une huile lubrifiante, et caractérisé en ce qu'il contient : une huile de base synthétique de type ester de polyol qui est contenue en une quantité de 30,0 à 60 % en poids dans l'additif pour huile lubrifiante ; un sel de calcium d'acide sulfonique qui est contenu en une quantité de 5,0 à 30,0 % en poids dans l'additif pour huile lubrifiante, a une structure cristalline de calcite, et contient du carbonate de calcium ; un oligomère de poly-alpha-oléfine ; un antioxydant de type dithiophosphate de zinc ; un imide d'acide succinique ; un agent de pression extrême de type thiadiazole ; et un antioxydant phénolique.
PCT/JP2018/006596 2017-02-22 2018-02-22 Additif pour huile lubrifiante et son procédé de production WO2018155601A1 (fr)

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EP18758457.8A EP3587542B1 (fr) 2017-02-22 2018-02-22 Additif pour huile lubrifiante et son procédé de production
AU2018224752A AU2018224752B2 (en) 2017-02-22 2018-02-22 Lubricant additive and process for manufacturing the same
SG11201907681QA SG11201907681QA (en) 2017-02-22 2018-02-22 A lubricant additive and process for manufacturing the same
JP2018527256A JP6465536B2 (ja) 2017-02-22 2018-02-22 潤滑油添加剤及び潤滑油添加剤の製造方法
CN201880012065.4A CN110300796A (zh) 2017-02-22 2018-02-22 润滑油添加剂以及润滑油添加剂的制造方法
KR1020197023655A KR102345529B1 (ko) 2017-02-22 2018-02-22 윤활유 첨가제 및 윤활유 첨가제의 제조 방법
US16/484,276 US20200002639A1 (en) 2017-02-22 2018-02-22 Lubricant additive and process for manufacturing the same

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CN110300796A (zh) 2019-10-01
EP3587542C0 (fr) 2023-08-23
US20200002639A1 (en) 2020-01-02
AU2018224752A1 (en) 2019-08-22
AU2018224752B2 (en) 2023-06-01
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EP3587542A1 (fr) 2020-01-01
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