WO2014208549A1 - 油圧作動油組成物 - Google Patents
油圧作動油組成物 Download PDFInfo
- Publication number
- WO2014208549A1 WO2014208549A1 PCT/JP2014/066698 JP2014066698W WO2014208549A1 WO 2014208549 A1 WO2014208549 A1 WO 2014208549A1 JP 2014066698 W JP2014066698 W JP 2014066698W WO 2014208549 A1 WO2014208549 A1 WO 2014208549A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- less
- hydraulic fluid
- fluid composition
- viscosity
- Prior art date
Links
Classifications
-
- 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
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
-
- 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—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
- C10M145/12—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 monocarboxylic
- C10M145/14—Acrylate; Methacrylate
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- 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
- 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
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
-
- 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
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Definitions
- the present invention relates to a hydraulic fluid composition.
- energy-saving hydraulic fluid has been developed as one of the measures against global warming.
- a conventional energy-saving hydraulic fluid for example, there is one in which energy consumption at the start-up of the apparatus is reduced by lowering the low temperature viscosity.
- energy-saving hydraulic fluids have been developed that contain a viscosity index improver to reduce energy consumption during steady operation after reducing the viscosity change of the hydraulic fluid and increasing the oil temperature.
- This energy-saving hydraulic fluid prevents oil leakage (internal leakage) from inside various hydraulic equipment unique to construction machinery by reducing the change in viscosity of the hydraulic fluid (higher viscosity index), thereby reducing energy consumption.
- Patent Documents 1 to 3 See Patent Documents 1 to 3).
- the present invention has been made in view of such circumstances, and a hydraulic fluid composition that can achieve both internal leakage prevention and pipe resistance reduction, and can improve the energy efficiency of the entire hydraulic system.
- the purpose is to provide.
- the present invention relates to a lubricating base oil having a kinematic viscosity at 40 ° C. of 15 to 50 mm 2 / s, a viscosity index of 125 or less, and an aromatic content of 1% by mass or more, and a hydraulic fluid composition
- a hydraulic fluid composition containing 1 to 40% by mass based on the total amount of polymethacrylate having a number average molecular weight of 28000 or less.
- the hydraulic fluid composition has a ratio of (A) kinematic viscosity at 80 ° C. (unit: mm 2 / s) and (B) high shear viscosity (unit: mPa ⁇ s, shear condition: 10 6 / s) ( A / B) is preferably 1.15 or less.
- the hydraulic fluid composition according to this embodiment includes a lubricating base oil having a kinematic viscosity at 40 ° C. of 15 to 50 mm 2 / s, a viscosity index of 125 or less, and an aromatic content of 1% by mass or more. And 1 to 40% by mass of polymethacrylate having a number average molecular weight of 28000 or less based on the total amount of the hydraulic fluid composition.
- the lubricating base oil used in the present embodiment includes mineral oil and synthetic hydrocarbon oil. These lubricating base oils can be used singly or in combination of two or more.
- the mineral oil is not particularly limited.
- a lubricating oil fraction obtained by subjecting crude oil to atmospheric distillation and vacuum distillation can be subjected to solvent removal, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, contact Paraffinic mineral oil or naphthenic mineral oil refined by appropriately combining purification treatments such as dewaxing, hydrorefining, sulfuric acid washing, and clay treatment may be mentioned.
- Examples of the synthetic hydrocarbon oil include poly ⁇ -olefin (polybutene, 1-octene oligomer, 1-decene oligomer, etc.), alkylbenzene, alkylnaphthalene and the like.
- the kinematic viscosity at 40 ° C. of the lubricating base oil is 15 to 50 mm 2 / s, preferably 20 to 45 mm 2 / s, more preferably 25 to 40 mm 2 / s, and still more preferably 25 to 35 mm. 2 / s.
- the kinematic viscosity at 40 ° C. is 15 mm 2 / s or more, a reduction in flash point can be prevented, and it is preferable in terms of evaporability.
- piping resistance can be reduced as the kinematic viscosity in 40 degreeC is 50 mm ⁇ 2 > / s or less.
- Lubricant base oil has a viscosity index of 125 or less, preferably 120 or less. Further, the viscosity index of the lubricating base oil is preferably 90 or more, more preferably 100 or more, and still more preferably 105 or more. When the viscosity index is 90 or more, it is possible to suppress an increase in the kinematic viscosity at a low temperature when the kinematic viscosity at a high temperature is ensured, and thus it is possible to suppress a decrease in efficiency of the hydraulic system.
- kinematic viscosity and “viscosity index” mean values measured according to JIS K2283.
- the aromatic content of the lubricating base oil is 1% by mass or more, preferably 1.5% by mass or more, and more preferably 2% by mass or more. When the aromatic content is 1% by mass or more, the solubility and thickening effect of polymethacrylate tend to be improved.
- the upper limit of the aromatic content of the lubricating base oil is not particularly limited, but the aromatic content of the lubricating base oil is, for example, 35% by mass or less.
- the sulfur content of the lubricating base oil is not particularly limited, but is preferably 5000 ppm by mass or less, more preferably 3000 ppm by mass or less, still more preferably 1000 ppm by mass or less, and most preferably 300 ppm by mass. is there. It is preferable in terms of oxidation stability and corrosion resistance that the sulfur content is 5000 mass ppm or less.
- the content of the lubricating base oil is preferably 40% by mass or more, more preferably 50% by mass or more, and further preferably 70% by mass or more based on the total amount of the hydraulic fluid composition.
- the content of the lubricating base oil is preferably 99% by mass or less, more preferably 98% by mass or less, and still more preferably 95% by mass or less, based on the total amount of the hydraulic fluid composition.
- the polymethacrylate contained in the hydraulic fluid composition of the present embodiment is a polymethacrylate having a number average molecular weight of 28000 or less.
- Suitable examples of such polymethacrylate include non-dispersed polymethacrylate having a structural unit represented by the following general formula (1), dispersed polymethacrylate having a structural unit represented by the following general formula (2), and the like. Is mentioned.
- a is an integer of 1 or more, and is an integer such that the number average molecular weight of the polymethacrylate is 28000 or less.
- R 1 represents an alkyl group having 1 to 22 carbon atoms.
- b and c are each an integer of 1 or more and an integer such that the number average molecular weight of the polymethacrylate is 28000 or less.
- R 2 represents an alkyl group having 1 to 22 carbon atoms
- R 3 represents hydrogen or a methyl group
- X represents a polar group.
- the number average molecular weight of the polymethacrylate is 28000 or less, preferably 25000 or less, more preferably 23000 or less, and further preferably 20000 or less. Further, the number average molecular weight of the polymethacrylate is preferably 2000 or more, more preferably 5000 or more, and further preferably 10,000 or more. When the number average molecular weight of the polymethacrylate is 28000 or less, it is preferable from the viewpoint of improving the high shear viscosity, and when it is 2000 or more, it is preferable from the viewpoint of improving the viscosity index.
- the content of polymethacrylate is 1 to 40% by mass based on the total amount of the hydraulic fluid composition.
- the content of polymethacrylate is preferably 3% by mass or more, more preferably 5% by mass or more, and still more preferably 10% by mass or more.
- the content of polymethacrylate is preferably 30% by mass or less, more preferably 25% by mass or less, and further preferably 20% by mass or less.
- the content of polymethacrylate is 1% by mass or more, it is preferable from the viewpoint of improving the high shear viscosity, and when it is 35% by mass or less, it is preferable from the viewpoint that an effect corresponding to the cost can be expected.
- the kinematic viscosity at 40 ° C. of the hydraulic fluid composition is preferably 20 mm 2 / s or more, more preferably 30 mm 2 / s or more, still more preferably 40 mm 2 / s or more, and most preferably 41. 4 mm 2 / s or more. Further, the kinematic viscosity at 40 ° C., preferably from 80 mm 2 / s or less, more preferably 70 mm 2 / s or less, more preferably 60 mm 2 / s or less, and most preferably not more than 50.6mm 2 / s. When the kinematic viscosity at 40 ° C. is 20 mm 2 / s or more, it is preferable from the viewpoint of durability of the hydraulic system, and when it is 80 mm 2 / s or less, it is preferable from the viewpoint of friction reduction.
- the hydraulic fluid composition has (A) kinematic viscosity at 80 ° C. (unit: mm 2 / s) and (B) high shear viscosity at 80 ° C. (unit: mPa ⁇ s, shear condition: 10 6 / s).
- the ratio (A / B) is preferably 1.15 or less, more preferably 1.14 or less, still more preferably 1.13 or less, and most preferably 1.12 or less. It is preferable from the point of pump efficiency and piping resistance that said ratio (A / B) is 1.15 or less.
- the lower limit of the ratio (A / B) is not particularly limited, but the ratio is, for example, 1.0 or more.
- the “high shear viscosity” in the present invention means a value measured in accordance with ASTM (D4741, D4683, D6616) and CEC (L-36A-90).
- an extreme pressure agent an antioxidant, a pour point depressant, a rust inhibitor, a metal deactivator, It may further contain a viscosity index improver, an antifoaming agent, a demulsifier, an oily agent and the like.
- a viscosity index improver an antifoaming agent, a demulsifier, an oily agent and the like.
- extreme pressure agents include sulfur compounds such as sulfurized esters, sulfurized fats and oils, polysulfides, zinc dithiophosphate, and phosphorus compounds, with phosphorus compounds being preferred.
- Specific examples of the phosphorus compound include phosphoric acid ester, acidic phosphoric acid ester, amine salt of acidic phosphoric acid ester, chlorinated phosphoric acid ester, phosphorous acid ester and phosphorothioate. These phosphorus compounds are esters of phosphoric acid, phosphorous acid or thiophosphoric acid with alkanols and polyether alcohols or derivatives thereof.
- phosphoric acid esters Among the above phosphorus compounds, phosphoric acid esters, acidic phosphoric acid esters, and amine salts of acidic phosphoric acid esters are preferable, and among these, phosphoric acid esters are more preferable because higher abrasion resistance can be obtained.
- the content of the extreme pressure agent is preferably 0.05 to 5% by mass based on the total amount of the hydraulic fluid composition.
- antioxidants examples include phenolic compounds such as 2,6-ditertiarybutyl-p-cresol (DBPC), aromatic amines such as phenyl- ⁇ -naphthylamine, and organometallic compounds.
- DBPC 2,6-ditertiarybutyl-p-cresol
- aromatic amines such as phenyl- ⁇ -naphthylamine
- organometallic compounds examples include phenolic compounds such as 2,6-ditertiarybutyl-p-cresol (DBPC), aromatic amines such as phenyl- ⁇ -naphthylamine, and organometallic compounds.
- the content of the phenolic antioxidant is preferably 0.01 to 2% by mass based on the total amount of the hydraulic fluid composition.
- the content of the amine-based antioxidant is preferably 0.001 to 2% by mass based on the total amount of the hydraulic fluid composition.
- pour point depressant examples include copolymers of one or more monomers selected from various acrylic esters and methacrylic esters or hydrogenated products thereof.
- the content of the pour point depressant is preferably 0.01 to 5% by mass based on the total amount of the hydraulic fluid composition.
- Rust inhibitors include amino acid derivatives, partial esters of polyhydric alcohols; esters such as lanolin fatty acid esters, alkyl succinic acid esters, and alkenyl succinic acid esters; sarcosine; partial polyhydric alcohol esters such as sorbitan fatty acid esters; fatty acid metals Examples thereof include metal soaps such as salts, lanolin fatty acid metal salts and oxidized wax metal salts; sulfonates such as calcium sulfonate and barium sulfonate; oxidized wax; amines; phosphoric acid;
- the content of the rust inhibitor is preferably 0.01 to 5% by mass based on the total amount of the hydraulic fluid composition.
- metal deactivators examples include benzotriazole, thiadiazole, and imidazole compounds.
- the content of the metal deactivator is preferably 0.001 to 1% by mass based on the total amount of the hydraulic fluid composition.
- the hydraulic fluid composition can further contain a viscosity index improver other than the above polymethacrylate.
- a viscosity index improver include copolymers of one or more monomers selected from various methacrylic acid esters or hydrogenated products thereof, polyisobutylene or hydrogenated products thereof, hydrogenated products of styrene-diene copolymers, and Non-dispersed viscosity index improvers such as polyalkylstyrene can be exemplified.
- the content of the viscosity index improver is preferably 0.01 to 15% by mass based on the total amount of the hydraulic fluid composition.
- antifoaming agents examples include silicones such as dimethyl silicone and fluorosilicone.
- the content of the antifoaming agent is preferably 0.001 to 0.05% by mass based on the total amount of the hydraulic fluid composition.
- demulsifier examples include polyoxyalkylene glycol, polyoxyalkylene alkyl ether, polyoxyalkylene alkylamide, polyoxyalkylene fatty acid ester and the like.
- oil-based agent examples include fatty acids, esters, alcohols and the like.
- the content of the oily agent is preferably 0.01 to 0.5% by mass based on the total amount of the hydraulic fluid composition.
- a hydraulic oil composition was prepared by blending a lubricating base oil and an additive with the compositions shown in Tables 1 and 2.
- the kinematic viscosity at 40 ° C. of the hydraulic fluid composition is adjusted so that the ISO viscosity grade is VG46 by adjusting the blending amount of the viscosity index improver according to the molecular weight. did.
- the lubricating base oils and additives used in the examples and comparative examples are as follows.
- Base oil 1 solvent refined mineral oil (aromatic content: 30.0% by mass, sulfur content: 2300 mass ppm, kinematic viscosity at 40 ° C .: 28.6 mm 2 / s, viscosity index: 101)
- Base oil 2 Solvent refined mineral oil + hydrorefined mineral oil (aromatic content: 13.0 mass%, sulfur content: 600 mass ppm, kinematic viscosity at 40 ° C .: 26.6 mm 2 / s, viscosity index: 103)
- Base oil 3 hydrorefined mineral oil (aromatic content: 2.0 mass%, sulfur content: 10 mass ppm or less, kinematic viscosity at 40 ° C .: 29.5 mm 2 / s, viscosity index: 117)
- Base oil 4 hydrorefined mineral oil (aromatic content: 0.5 mass%, sulfur content: 10 mass ppm or less, kinematic viscosity at 40 °
- the sulfur content was measured according to ASTM D4951 “Standard Test Method for Determinating of Additive Elements in Lubricating Oils by Inductively Coupled Plasmas”.
- the kinematic viscosity and viscosity index were measured according to JIS K2283.
- ⁇ Other additives As other additives, tricresyl phosphate, 2,6-ditertiary butyl-p-cresol (DBPC) and a pour point depressant were used.
- DBPC 2,6-ditertiary butyl-p-cresol
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Lubricants (AREA)
Abstract
Description
基油1:溶剤精製鉱油(芳香族分:30.0質量%、硫黄分:2300質量ppm、40℃における動粘度:28.6mm2/s、粘度指数:101)
基油2:溶剤精製鉱油+水素化精製鉱油(芳香族分:13.0質量%、硫黄分:600質量ppm、40℃における動粘度:26.6mm2/s、粘度指数:103)
基油3:水素化精製鉱油(芳香族分:2.0質量%、硫黄分:10質量ppm以下、40℃における動粘度:29.5mm2/s、粘度指数:117)
基油4:水素化精製鉱油(芳香族分:0.5質量%、硫黄分:10質量ppm以下、40℃における動粘度:36.4mm2/s、粘度指数:131)
基油5:水素化精製鉱油(芳香族分:0.5質量%、硫黄分:10質量ppm以下、40℃における動粘度:39.6mm2/s、粘度指数:130)
A:ポリメタクリレート(エボニックデグサ社製:JMB3587、一般式(1)の構造単位を有する、数平均分子量20000)
B:ポリメタクリレート(ヘンケルジャパン社製:カネルーブ2091、一般式(2)の構造単位を有する、数平均分子量40000)
その他の添加剤として、トリクレジルホスフェート、2,6-ジターシャリーブチル-p-クレゾール(DBPC)及び流動点降下剤を用いた。
ポンプ名:コマツHPV35+35
吐出量+ドレイン量:40L/min
ポンプタイプ:斜板型
油温:80℃
圧:無負荷、35MPa
ポンプの回転:2100rpm
Claims (2)
- 40℃における動粘度が15~50mm2/sであり、粘度指数が125以下であり、芳香族分が1質量%以上である潤滑油基油と、
油圧作動油組成物全量基準で1~40質量%の、数平均分子量が28000以下であるポリメタクリレートと、
を含有する油圧作動油組成物。 - (A)80℃における動粘度(単位:mm2/s)と、(B)80℃における高せん断粘度(単位:mPa・s、せん断条件:106/s)との比(A/B)が1.15以下である、請求項1に記載の油圧作動油組成物。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/898,572 US20160115420A1 (en) | 2013-06-24 | 2014-06-24 | Hydraulic oil composition |
CN201480021160.2A CN105143419B (zh) | 2013-06-24 | 2014-06-24 | 液压油组合物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-131440 | 2013-06-24 | ||
JP2013131440A JP6134212B2 (ja) | 2013-06-24 | 2013-06-24 | 油圧作動油組成物 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014208549A1 true WO2014208549A1 (ja) | 2014-12-31 |
Family
ID=52141882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/066698 WO2014208549A1 (ja) | 2013-06-24 | 2014-06-24 | 油圧作動油組成物 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160115420A1 (ja) |
JP (1) | JP6134212B2 (ja) |
CN (1) | CN105143419B (ja) |
WO (1) | WO2014208549A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019160123A1 (ja) * | 2018-02-16 | 2019-08-22 | 出光興産株式会社 | 潤滑油組成物 |
CN109679748A (zh) * | 2018-12-27 | 2019-04-26 | 山东奇士登润滑科技有限公司 | 一种防漏抗磨液压油及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4911151B1 (ja) * | 1970-03-31 | 1974-03-15 | ||
JPS5674193A (en) * | 1979-11-22 | 1981-06-19 | Hitachi Constr Mach Co Ltd | Hydraulic oil composition |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6992049B2 (en) * | 2002-01-31 | 2006-01-31 | Exxonmobil Research And Engineering Company | Lubricating oil compositions |
JP4571776B2 (ja) * | 2002-11-05 | 2010-10-27 | Jx日鉱日石エネルギー株式会社 | 潤滑油組成物 |
EP1808476B1 (en) * | 2004-10-22 | 2011-06-29 | Nippon Oil Corporation | Lubricant composition for transmission |
US20080302422A1 (en) * | 2007-06-07 | 2008-12-11 | Rohmax Additives Gmbh | Power output in hydraulic systems |
JP5301226B2 (ja) * | 2007-09-26 | 2013-09-25 | 昭和シェル石油株式会社 | 建設機械用作動油 |
JP5483662B2 (ja) * | 2008-01-15 | 2014-05-07 | Jx日鉱日石エネルギー株式会社 | 潤滑油組成物 |
EP2337832A1 (en) * | 2008-10-14 | 2011-06-29 | Evonik RohMax Additives GmbH | Hydraulic fluid composition that reduces hydraulic system noise |
JP5789111B2 (ja) * | 2011-03-25 | 2015-10-07 | Jx日鉱日石エネルギー株式会社 | 潤滑油組成物 |
-
2013
- 2013-06-24 JP JP2013131440A patent/JP6134212B2/ja active Active
-
2014
- 2014-06-24 CN CN201480021160.2A patent/CN105143419B/zh active Active
- 2014-06-24 US US14/898,572 patent/US20160115420A1/en not_active Abandoned
- 2014-06-24 WO PCT/JP2014/066698 patent/WO2014208549A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4911151B1 (ja) * | 1970-03-31 | 1974-03-15 | ||
JPS5674193A (en) * | 1979-11-22 | 1981-06-19 | Hitachi Constr Mach Co Ltd | Hydraulic oil composition |
Also Published As
Publication number | Publication date |
---|---|
US20160115420A1 (en) | 2016-04-28 |
JP6134212B2 (ja) | 2017-05-24 |
CN105143419B (zh) | 2017-10-13 |
CN105143419A (zh) | 2015-12-09 |
JP2015004028A (ja) | 2015-01-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5779376B2 (ja) | 潤滑油組成物 | |
JP5829374B2 (ja) | 潤滑油組成物 | |
JP5689592B2 (ja) | 潤滑油組成物 | |
JP2009500489A (ja) | 工業潤滑油及びグリース組成物中のhvi−pao | |
JP2009500489A5 (ja) | ||
JP5756337B2 (ja) | 潤滑油組成物 | |
WO2014017558A1 (ja) | ポリ(メタ)アクリレート系粘度指数向上剤、並びに該粘度指数向上剤を含有する潤滑油添加剤及び潤滑油組成物 | |
JP5756336B2 (ja) | 潤滑油組成物 | |
JP2008074933A (ja) | 潤滑油組成物 | |
JP5931250B2 (ja) | 潤滑油組成物 | |
JP2010189639A (ja) | 潤滑組成物 | |
JP6134212B2 (ja) | 油圧作動油組成物 | |
RU2738373C2 (ru) | Композиция смазочного масла | |
JP2010280821A (ja) | 潤滑油組成物 | |
JP6310798B2 (ja) | 潤滑油組成物 | |
JP6082710B2 (ja) | 潤滑油組成物 | |
WO2015146665A1 (ja) | 潤滑油組成物 | |
JP2016190919A (ja) | 潤滑油組成物 | |
WO2014157201A1 (ja) | 油圧作動油組成物 | |
WO2014157200A1 (ja) | 油圧作動油組成物 | |
WO2017150688A1 (ja) | 潤滑油組成物、潤滑方法、及び変速機 | |
JP2011236407A (ja) | 潤滑組成物 | |
JP6018982B2 (ja) | ポリ(メタ)アクリレート系粘度指数向上剤、並びに該粘度指数向上剤を含有する潤滑油添加剤及び潤滑油組成物 | |
JP6077956B2 (ja) | ポリ(メタ)アクリレート系粘度指数向上剤、並びに該粘度指数向上剤を含有する潤滑油添加剤及び潤滑油組成物 | |
JP5395473B2 (ja) | 工業用作動油組成物 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480021160.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14818133 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14898572 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14818133 Country of ref document: EP Kind code of ref document: A1 |