WO2007085643A1 - Grease composition - Google Patents

Grease composition Download PDF

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Publication number
WO2007085643A1
WO2007085643A1 PCT/EP2007/050760 EP2007050760W WO2007085643A1 WO 2007085643 A1 WO2007085643 A1 WO 2007085643A1 EP 2007050760 W EP2007050760 W EP 2007050760W WO 2007085643 A1 WO2007085643 A1 WO 2007085643A1
Authority
WO
WIPO (PCT)
Prior art keywords
grease composition
zinc
dithiophosphate
molybdenum
composition according
Prior art date
Application number
PCT/EP2007/050760
Other languages
English (en)
French (fr)
Inventor
Takahiro Ozaki
Koichi Numazawa
Original Assignee
Shell Internationale Research Maatschappij B.V.
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 Shell Internationale Research Maatschappij B.V. filed Critical Shell Internationale Research Maatschappij B.V.
Priority to BRPI0706738-0A priority Critical patent/BRPI0706738A2/pt
Priority to EP07704153A priority patent/EP1979449A1/en
Priority to CA002639941A priority patent/CA2639941A1/en
Priority to AU2007209296A priority patent/AU2007209296A1/en
Publication of WO2007085643A1 publication Critical patent/WO2007085643A1/en

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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
    • C10M169/06—Mixtures of thickeners 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
    • C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
    • C10M115/08—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/22—Compounds containing sulfur, selenium or tellurium
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • 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
    • C10M2215/10—Amides of carbonic or haloformic acids
    • C10M2215/1013—Amides of carbonic or haloformic acids used as thickening agents
    • 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
    • C10M2215/10—Amides of carbonic or haloformic acids
    • C10M2215/102—Ureas; Semicarbazides; Allophanates
    • C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal salts
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
    • 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
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Definitions

  • the present invention relates to a grease composition, in particular to a low friction grease composition whereby wear generated in lubricated parts such as bearings or gears is suppressed.
  • Greases having excellent frictional wear characteristics are required in, for example, bearings or gears of mechanical devices in the automobile, iron and steel, railway and other industries.
  • this is important for lubrication applications such as constant velocity joints of automobiles, in which both rolling friction and sliding friction are present and ball screws of driving gears in an injection moulding machine or an electric pressing machine .
  • 62-207397 describes a grease composition which comprises a sulphur-phosphorus type extreme-pressure additive in which (a) molybdenum dialkyl dithiocarbamate sulphide and (b) at least one member selected from the group consisting of a sulfurized oil, a sulfurized olefin, tricresyl phosphate, trialkyl dithiophosphate, and a zinc dialkyl dithiophosphate are combined with each other as essential components.
  • a sulphur-phosphorus type extreme-pressure additive in which (a) molybdenum dialkyl dithiocarbamate sulphide and (b) at least one member selected from the group consisting of a sulfurized oil, a sulfurized olefin, tricresyl phosphate, trialkyl dithiophosphate, and a zinc dialkyl dithiophosphate are combined with each other as essential components.
  • Japanese Patent Application No. 63-046299 discloses a grease composition in which additives, namely, molybdenum dialkyl dithiocarbamate sulphide and molybdenum dithiophosphate and, optionally, zinc dithiophosphate are simultaneously blended in a urea-thickened grease.
  • MSDS Medical Safety Data Sheet
  • molybdenum compounds in particular, molybdenum dialkyl dithiocarbamate sulphide, have an excellent effect in reducing friction and wear and it is hard to find a replacement for molybdenum dialkyl dithiocarbamate. Furthermore, even if such a replacement is added to the grease, a considerable amount thereof may be required in order to secure a sufficiently low coefficient of friction.
  • Tungsten disulphide is known as a solid lubricant and is a substance which is not defined as a PRTR restricted substance.
  • a grease composition has now been surprisingly developed which has low friction properties and excellent wear resistance by blending tungsten disulphide and zinc dithiophosphate and/or molybdenum dithiocarbamate with a urea-thickened grease.
  • the present invention provides a grease composition, comprising base oil, one or more urea thickeners, (A) in the range of from 0.1 to 5 weight% of tungsten disulphide and (B) in the range of from 0.1 to 5 weight% of one or more zinc dithiophosphates and/or one or more molybdenum dithiocarbamates, based on the total weight of the grease composition.
  • A in the range of from 0.1 to 5 weight% of tungsten disulphide
  • B in the range of from 0.1 to 5 weight% of one or more zinc dithiophosphates and/or one or more molybdenum dithiocarbamates, based on the total weight of the grease composition.
  • the grease composition may further comprise (C) one or more molybdenum dithiophosphates .
  • molybdenum compounds designated as PRTR restricted substances are not used, or the amount thereof which is used can be relatively reduced, and a grease composition having excellent performance in terms of friction and wear characteristics and high stability can thereby be obtained.
  • the base oil in the grease composition according to the present invention may be conveniently selected from mineral oils, vegetable oils and synthetic oils such as ester oil, ether oil or hydrocarbon oil, or mixtures thereof.
  • the one or more urea thickeners in the grease composition of the present invention may be selected from urea compounds such as monourea, diurea, triurea, tetraurea or other polyureas.
  • Diurea compounds are easily obtained by the reaction of diisocyanate and monourea; tetraurea compounds can be obtained by reaction of diisocyanate, monourea and diamines .
  • diisocyanates that may be used to make said urea compounds include: diphenylmethane diisocyanate, tolylene diisocyanate, bitolylene diisocyanate and naphthylene diisocyanate.
  • examples of monoamines that may be used to make said urea compounds include octylamine, dodecylamine, stearylamine, oleylamine, aniline, paratoluidine and cyclohexylamine .
  • examples of diamines that may be used to make said urea compounds include ethylene diamine, propane diamine, butane diamine and phenylene diamine.
  • the grease composition of the present invention may comprise a total amount in the range of from 1 to 25 weight% of said one or more urea thickeners, based on the total weight of said grease composition.
  • the grease composition of the present invention may further comprise one or more additional thickeners such as metallic soaps, organic substances or inorganic substances, for example, lithium soaps, lithium complex soaps, sodium terephthalate, urea/urethane compounds and clays .
  • additional thickeners such as metallic soaps, organic substances or inorganic substances, for example, lithium soaps, lithium complex soaps, sodium terephthalate, urea/urethane compounds and clays .
  • the tungsten disulphide which is employed as the afore-mentioned component (A) in the grease composition of the present is preferably a powder having an average particle size of less than 10 ⁇ m obtained by the Fisher method (Fisher Sub-sieve Sizer) . More preferably, the tungsten disulphide which is employed is a powder having an average particle size of about 0.6 ⁇ m obtained by the afore-mentioned method.
  • the one or more zinc dithiophosphates which may be employed as the afore-mentioned component (B) in the grease composition of the present invention may be conveniently selected from zinc dialkyl dithiophosphates and/or zinc diaryl dithiophosphates.
  • said one or more zinc dithiophosphates may be selected from compounds of formula (I),
  • R' indicates primary or secondary alkyl groups or aryl groups, which may be the same or different.
  • primary or secondary alkyl groups are employed as R 1 .
  • R 1 include a methyl group, ethyl group, propyl group, isopropyl group, butyl group, secondary butyl group, isobutyl group, pentyl group, 4-methyl pentyl group, hexyl group, 2-ethyl hexyl group, heptyl group, octyl group, nonyl group, decyl group, isodecyl group, dodecyl group, tetradecyl group, hexadecyl group, octadecyl group, eicosyl group, docosyl group, tetracosyl group, cyclopentyl group, cyclohexyl group, methyl cycl
  • Specific examples of the above primary alkyl zinc dithiophosphate include zinc diisopropyl dithiophosphate and zinc diisobutyl dithiophosphate and zinc diisodecyl dithiophosphate.
  • specific examples of the above secondary dialkyl zinc dithiophosphate include zinc mono or di-sec- butyl dithiophosphate, zinc mono or di-sec-pentyl dithiophosphate and zinc mono or di-4-methyl-2-pentyl dithiophosphate.
  • Specific examples of the above zinc aryl dithiophosphate include zinc di-para-dodecyl phenol dithiophosphate, zinc di-heptyl phenol dithiophosphate and zinc di-para-nonyl phenol dithiophosphate.
  • molybdenum dialkyl dithiocarbamates include molybdenum diethyl dithiocarbamate sulphide, molybdenum dipropyl dithiocarbamate sulphide, molybdenum dibutyl dithiocarbamate sulphide, molybdenum dipentyl dithiocarbamate sulphide, molybdenum dihexyl dithiocarbamate sulphide, molybdenum dioctyl dithiocarbamate sulphide, molybdenum didecyl dithiocarbamate sulphide, molybdenum didodecyl dithiocarbamate sulphide, molybdenum di (butylphenyl) dithiocarbamate sulphide, molybdenum di (nonylphenyl) dithiocarbamate disulphide, oxy-molybdenum
  • molybdenum diethyl dithiophosphate sulphide molybdenum dipropyl dithiophosphate sulphide, molybdenum dibutyl dithiophosphate sulphide, molybdenum dipentyl dithiophosphate sulphide, molybdenum dihexyl dithiophosphate sulphide, molybdenum dioctyl dithiophosphate sulphide, molybdenum didecyl dithiophosphate sulphide, molybdenum didodecyl dithiophosphate sulphide, molybdenum di (butylphenyl) dithiophosphate sulphide, molybdenum di (nonylphenyl) dithiophosphate disulphide, oxy-
  • the afore-mentioned components (A) tungsten disulphide; and (B) one or more zinc dithiophosphates and/or one or more molybdenum dithiocarbamates are respectively blended in the grease composition of the present invention in an amount in the range of from 0.1 to 5 weight%.
  • the afore-mentioned components are respectively blended in the grease composition of the present invention in an amount in the range of from 0.1 to 5 weight%.
  • (A) and (B) are each blended in the grease composition of the present invention in an amount in the range of from 0.2 to 3 weight%, based on the total weight of the grease composition. If the afore-mentioned components (A) and (B) are each blended in the grease composition of the present invention in an amount in the range of from 0.2 to 3 weight%, based on the total weight of the grease composition. If the afore-mentioned components (A) and (B) are each blended in the grease composition of the present invention in an amount in the range of from 0.2 to 3 weight%, based on the total weight of the grease composition. If the afore-mentioned components (A) and
  • the one or more molybdenum dithiophosphates (C) may be present in the grease composition of the present invention in an amount in the range of from 0.1 to 5 weight%, more preferably in the range of from 0.2 to 3 weight%.
  • the grease composition of the present invention may further comprise various types of known additives such as antioxidants, for example, aminic and/or phenolic antioxidants, extreme pressure additives, for example, olefin sulphides and/or oil sulphides, viscosity increasing agents, for example, polybutenes and/or polymethacrylates, solid lubricants, for example, molybdenum disulphide and/or boron nitride, metallic salts, for example, sulfonates, salicylates and/or phenates capable of being used as antirust agents or structure stabilisers and phosphites and/or phosphates capable of being used as extreme pressure/wear reducing agents .
  • the present invention further provides a method of reducing friction and/or wear in the bearings, gears and/or joints of mechanical devices, wherein said method comprises lubricating said bearings, gears and/or joints with a grease composition as hereinbefore described.
  • the present invention also provides a bearing, gear and joint, characterised in that the grease composition as hereinbefore described is used therein as the lubricant. Furthermore, the present invention also provides the use of a grease composition as hereinbefore described to lubricate a bearing, a gear and/or a joint.
  • Diphenyl methane-4 , 4 ' -diisocyanate (295.2 g) and octylamine (304.8 g) were reacted in refined mineral oil (5400 g) having a kinematic viscosity of about 15 mm 2 /s at 100 0 C, and the diurea compound produced was uniformly dispersed to obtain a base grease.
  • the content of urea compound in the base grease was 10 weight%.
  • the consistency of this diurea grease (25 0 C, 60 W) according to JS-K2220 was 283 and its dropping point was 263 0 C. [1-2] Tetraurea grease
  • Diphenyl methane-4 , 4 ' -diisocyanate (382.7 g) , stearylamine (411.4 g) and ethylene diamine (46.0 g) were reacted in refined mineral oil (5160 g) having a kinematic viscosity of about 15 mm 2 /s at 100 0 C, and the urea compound produced was uniformly dispersed to obtain a base grease.
  • the content of the urea compound in the base grease was 14 weight% .
  • the consistency of this tetraurea grease (25 0 C, 60 W) according to JS-K2220 was 285 and its dropping point was 202 °C.
  • Tungsten disulphide (indicated in the Tables as WS 2 ) : a tungsten disulphide powder having an average particle size of 0.6 ⁇ m, available under the trade designation of
  • Molybdenum dithiocarbamate (indicated in the Tables as Mo-DTC) : additive available under the trade designation "Molyvan A” from Vanderbilt Inc. was employed.
  • Molybdenum dithiophosphate (indicated in the Tables as Mo-DTP) : additive available under the trade designation "Sakuralube 300" from Asahi Electrochemical Industries Ltd. was employed.
  • Molybdenum disulphide (indicated in the Tables as MoS 2 ) : Molybdenum disulphide having an average particle size of 0.7 ⁇ m as manufactured by CLIMAX MOLYBDENUM UK Ltd was employed.
  • Examples 1 to 7 show excellent wear resistance, displaying low friction properties, with a frictional coefficient of approx. 0.056 to 0.083 in the Falex test, the maximum surface roughness of the test sample being approx. 5.9 to 10.1 ⁇ m.
  • the products of Comparative Examples 1 to 8 show in each case results that are unsatisfactory as regards both the coefficient of friction and wear resistance properties.
  • the products of Comparative Examples 1, 2, 5, 7 and 8 have a high coefficient of friction and show large values of the maximum surface roughness of the test sample.
  • the products of Comparative Examples 3 and 4 show comparatively low values of the coefficient of friction, but display large values of the maximum surface roughness of the test sample; it is inferred that in these cases the low coefficient of friction is displayed due to lowering of the contact area pressure due to increased wear.
  • the maximum surface roughness of the test sample is comparatively close to that of the practical examples, but this product shows a high value of the coefficient of friction.

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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)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)
PCT/EP2007/050760 2006-01-27 2007-01-26 Grease composition WO2007085643A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BRPI0706738-0A BRPI0706738A2 (pt) 2006-01-27 2007-01-26 composição de graxa, método para reduzir fricção e/ou desgaste em mancais, engrenagens e/ou juntas de dispositivos mecánicos, e, uso de uma composição de graxa
EP07704153A EP1979449A1 (en) 2006-01-27 2007-01-26 Grease composition
CA002639941A CA2639941A1 (en) 2006-01-27 2007-01-26 Grease composition
AU2007209296A AU2007209296A1 (en) 2006-01-27 2007-01-26 Grease composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006019709A JP4886304B2 (ja) 2006-01-27 2006-01-27 グリース組成物
JP2006-019709 2006-01-27

Publications (1)

Publication Number Publication Date
WO2007085643A1 true WO2007085643A1 (en) 2007-08-02

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ID=37988001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/050760 WO2007085643A1 (en) 2006-01-27 2007-01-26 Grease composition

Country Status (11)

Country Link
US (1) US20070207934A1 (ja)
EP (1) EP1979449A1 (ja)
JP (1) JP4886304B2 (ja)
KR (1) KR20080087040A (ja)
CN (1) CN101395257A (ja)
AR (1) AR061406A1 (ja)
AU (1) AU2007209296A1 (ja)
BR (1) BRPI0706738A2 (ja)
CA (1) CA2639941A1 (ja)
RU (1) RU2008134895A (ja)
WO (1) WO2007085643A1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
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WO2011030315A1 (fr) 2009-09-10 2011-03-17 Total Raffinage Marketing Composition de graisse
RU2443765C1 (ru) * 2010-09-28 2012-02-27 Государственное образовательное учреждение высшего профессионального образования "Орловский государственный технический университет (ОрелГТУ) Смазка для узлов трения подшипников качения и скольжения
WO2012080939A1 (fr) 2010-12-13 2012-06-21 Total Raffinage Marketing Composition de graisse
EP2597141A1 (en) * 2011-11-25 2013-05-29 Nippon Grease Co., Ltd. Grease composition and bearing
WO2015128444A1 (fr) 2014-02-28 2015-09-03 Total Marketing Services Composition lubrifiante à base de nanoparticules métalliques
US9975937B2 (en) 2009-08-14 2018-05-22 The United Sstates Of America, As Represented By The Secretary, Department Of Health And Human Services Heterodimers of IL-15 and IL-15R alpha to increase thymic output and to treat lymphopenia

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Publication number Priority date Publication date Assignee Title
EP2231681B1 (en) * 2007-12-14 2013-11-06 Vanderbilt Chemicals, LLC Additive composition for ep greases with excellent antiwear and corrosion properties
CN101691517B (zh) * 2009-09-29 2012-12-19 中南大学 一种车用机油添加剂及机油
US9394501B2 (en) 2011-06-17 2016-07-19 Biosynthetic Technologies, Llc Grease compositions comprising estolide base oils
RU2495094C1 (ru) * 2012-07-19 2013-10-10 Общество с ограниченной ответственностью ХОЗРАСЧЕТНЫЙ ТВОРЧЕСКИЙ ЦЕНТР УФИМСКОГО АВИАЦИОННОГО ИНСТИТУТА Смазка для холодной обработки металлов давлением
CN103013628A (zh) * 2012-12-27 2013-04-03 深圳市优宝惠新材料科技有限公司 一种复合铝基润滑脂组合物及其制备方法
MY197147A (en) 2016-07-11 2023-05-26 Adeka Corp Lubricant composition and lubricanting oil composition
CN110157524A (zh) * 2019-06-13 2019-08-23 安徽和欣润滑科技有限公司 一种电动缝纫机驱动机构润滑脂的组合物及制备方法
US11725158B2 (en) * 2019-09-18 2023-08-15 Gkn Driveline International Gmbh Grease composition for constant velocity joints

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5013466A (en) * 1989-03-23 1991-05-07 Japan Atomic Energy Research Institute Lubricating grease
GB2255346A (en) * 1991-04-30 1992-11-04 Ntn Toyo Bearing Co Ltd Grease composition for constant velocity joint
US5952273A (en) * 1997-03-31 1999-09-14 Kyodo Yushi Co., Ltd, Grease composition for constant velocity joints
WO2004113481A1 (en) * 2003-06-18 2004-12-29 Shell Internationale Research Maatschappij B.V. Grease composition

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JP4886304B2 (ja) 2012-02-29
AR061406A1 (es) 2008-08-27
BRPI0706738A2 (pt) 2011-04-05
KR20080087040A (ko) 2008-09-29
EP1979449A1 (en) 2008-10-15
US20070207934A1 (en) 2007-09-06
JP2007197614A (ja) 2007-08-09
AU2007209296A1 (en) 2007-08-02
RU2008134895A (ru) 2010-03-10
CA2639941A1 (en) 2007-08-02

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