US20070207934A1 - Grease composition - Google Patents

Grease composition Download PDF

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Publication number
US20070207934A1
US20070207934A1 US11/627,285 US62728507A US2007207934A1 US 20070207934 A1 US20070207934 A1 US 20070207934A1 US 62728507 A US62728507 A US 62728507A US 2007207934 A1 US2007207934 A1 US 2007207934A1
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US
United States
Prior art keywords
grease composition
zinc
dithiophosphate
composition according
molybdenum
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/627,285
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English (en)
Inventor
Takahiro Ozaki
Koichi Numazawa
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Shell USA Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to SHELL OIL COMPANY reassignment SHELL OIL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NUMAZAWA, KOICHI, OZAKI, TAKAHIRO
Publication of US20070207934A1 publication Critical patent/US20070207934A1/en
Abandoned legal-status Critical Current

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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.
  • Lead compounds and antimony compounds which are also defined as PRTR restricted substances, were used in grease compositions for many years. However, such compounds have been almost entirely replaced by sulphur type extreme-pressure additives or the like which are free of these problems.
  • 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.
  • Laid-open Japanese Patent Application No. 2003-301188 discloses that by adding tungsten disulphide to a lithium soap grease which contains polyoxypropylene and glyceryl ether as a base oil, a powder for density adjustment is prepared such that, when the grease that is used is liberated in water, this grease floats or sinks.
  • 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.
  • 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), wherein R′ indicates primary or secondary alkyl groups or aryl groups, which may be the same or different.
  • 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′.
  • R′ examples 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 cyclohexyl group, ethyl cyclohexyl group, dimethyl cyclohexyl group, cycloheptyl group, phenyl group, tolyl group, xylyl group,
  • 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.
  • zinc aryl dithiophosphate examples include zinc di-para-dodecyl phenol dithiophosphate, zinc di-heptyl phenol dithiophosphate and zinc di-para-nonyl phenol dithiophosphate.
  • Preferred examples of the one or more molybdenum dialkyl dithiocarbamates, which may be employed as component (B) in the grease composition of the present invention may be selected from compounds of formula (II), (R 1 R 2 N—CS—S) 2 Mo 2 O m S n (II)
  • 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 (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.
  • the afore-mentioned components (A) and (B) are each blended in an amount of less than 0.1 weight %, based on the total weight of the grease composition, a low coefficient of friction cannot be obtained and frictional wear is insufficiently improved. Furthermore, if the afore-mentioned components (A) and (B) are blended in an amount exceeding 5 weight %, based on the total weight of the grease composition, then no further increase in beneficial effect is seen.
  • 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 phosphates and/or phosphates capable of being used as extreme pressure/wear reducing agents.
  • 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
  • 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.
  • the present invention also provides the use of a grease composition as hereinbefore described to lubricate a bearing, a gear and/or a joint.
  • the Falex wear resistance test is based on IP 241 (IP: Institute of Petroleum, UK); tests are carried out in accordance with the following conditions, to obtain a wear coefficient after completion of the test. Also, the Rmax ( ⁇ m) (maximum surface roughness) of a reference test sample was measured.
  • Amount of grease applied about 1 gram applied to the test sample
  • 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, 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)
US11/627,285 2006-01-27 2007-01-25 Grease composition Abandoned US20070207934A1 (en)

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
US20070207934A1 true US20070207934A1 (en) 2007-09-06

Family

ID=37988001

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/627,285 Abandoned US20070207934A1 (en) 2006-01-27 2007-01-25 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)

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US20090156444A1 (en) * 2007-12-14 2009-06-18 R.T. Vanderbilt Company, Inc. Additive composition for ep greases with excellent antiwear and corrosion properties
US20130137612A1 (en) * 2011-11-25 2013-05-30 Nippon Grease Co., Ltd. Grease composition and bearing
US9394501B2 (en) 2011-06-17 2016-07-19 Biosynthetic Technologies, Llc Grease compositions comprising estolide base oils
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
US11015141B2 (en) 2014-02-28 2021-05-25 Total Marketing Services Lubricant composition based on metal nanoparticles

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FR2949786B1 (fr) 2009-09-10 2013-07-05 Total Raffinage Marketing Composition de graisse.
CN101691517B (zh) * 2009-09-29 2012-12-19 中南大学 一种车用机油添加剂及机油
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
FR2968669B1 (fr) 2010-12-13 2014-02-28 Total Raffinage Marketing Composition de graisse
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
US11725158B2 (en) * 2019-09-18 2023-08-15 Gkn Driveline International Gmbh Grease composition for constant velocity joints

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US20090156444A1 (en) * 2007-12-14 2009-06-18 R.T. Vanderbilt Company, Inc. Additive composition for ep greases with excellent antiwear and corrosion properties
US8138132B2 (en) * 2007-12-14 2012-03-20 R.T. Vanderbilt Company, Inc. Additive composition for EP greases with excellent antiwear and corrosion properties
US9394501B2 (en) 2011-06-17 2016-07-19 Biosynthetic Technologies, Llc Grease compositions comprising estolide base oils
US9605231B2 (en) 2011-06-17 2017-03-28 Biosynthetic Technologies, Llc Grease compositions comprising estolide base oils
US10150931B2 (en) 2011-06-17 2018-12-11 Biosynthetic Technologies, Llc Grease compositions comprising estolide base oils
US20130137612A1 (en) * 2011-11-25 2013-05-30 Nippon Grease Co., Ltd. Grease composition and bearing
US8993497B2 (en) * 2011-11-25 2015-03-31 Nippon Grease Co., Ltd. Grease composition and bearing
US11015141B2 (en) 2014-02-28 2021-05-25 Total Marketing Services Lubricant composition based on metal nanoparticles
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

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CN101395257A (zh) 2009-03-25
JP4886304B2 (ja) 2012-02-29
WO2007085643A1 (en) 2007-08-02
AR061406A1 (es) 2008-08-27
BRPI0706738A2 (pt) 2011-04-05
KR20080087040A (ko) 2008-09-29
EP1979449A1 (en) 2008-10-15
JP2007197614A (ja) 2007-08-09
AU2007209296A1 (en) 2007-08-02
RU2008134895A (ru) 2010-03-10
CA2639941A1 (en) 2007-08-02

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