WO2012115141A1 - Composition de graisse - Google Patents

Composition de graisse Download PDF

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Publication number
WO2012115141A1
WO2012115141A1 PCT/JP2012/054256 JP2012054256W WO2012115141A1 WO 2012115141 A1 WO2012115141 A1 WO 2012115141A1 JP 2012054256 W JP2012054256 W JP 2012054256W WO 2012115141 A1 WO2012115141 A1 WO 2012115141A1
Authority
WO
WIPO (PCT)
Prior art keywords
grease composition
thickener
cyclohexyl
formula
group
Prior art date
Application number
PCT/JP2012/054256
Other languages
English (en)
Japanese (ja)
Inventor
山本　正道
雄太 佐藤
Original Assignee
協同油脂株式会社
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 協同油脂株式会社 filed Critical 協同油脂株式会社
Priority to US13/983,665 priority Critical patent/US20130310292A1/en
Priority to KR1020137020084A priority patent/KR20130118936A/ko
Priority to CN201280009920.9A priority patent/CN103415603B/zh
Priority to DE112012000940T priority patent/DE112012000940T5/de
Publication of WO2012115141A1 publication Critical patent/WO2012115141A1/fr

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
    • 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
    • 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
    • C10M169/02—Mixtures of base-materials and thickeners
    • 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
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/0206—Well-defined aliphatic compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy compounds
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6633—Grease properties or compositions, e.g. rheological properties

Definitions

  • the present invention relates to a grease composition that can be used for lubricating various machine parts such as rolling bearings, gears, ball screws, linear motion bearings, cams, and joints.
  • the sealing device Since grease can be lubricated without lubrication for a long period of time, the sealing device is simple, the required amount is small, and there is little fouling due to leakage. It is used in many machine parts that have a body. However, since grease is a semi-solid lubricant containing a base oil and a thickener, it has a higher apparent viscosity and a higher stirring resistance than a lubricant. In the past, in order to reduce the agitation resistance of grease, it has been a common practice to make the kinematic viscosity of the base oil as low as possible as in the case of lubricating oil.
  • Patent Document 1 proposes a grease composition using a base oil containing a diester oil having a specific structure, and an example describes a diester oil having a kinematic viscosity at 40 ° C. of 20.16 mm 2 / s. Has been. However, if the kinematic viscosity of the base oil of the grease is lowered, the stirring resistance will be reduced. The base oil that can be used is limited because it disappears.
  • the problem to be solved by the present invention is to provide a grease composition having a low stirring resistance.
  • Another object of the present invention is to provide a mechanical component enclosing the grease composition.
  • the present inventors solved this problem by selecting an appropriate thickener. That is, according to the present invention, the following grease composition and machine parts are provided: 1. A thickener, a base oil, the thickener is a diurea compound represented by the following formula (1), and the amount of the thickener in the grease composition is 3 to 20% by mass: Grease composition.
  • R 2 represents a diphenylmethane group.
  • R 1 and R 3 may be the same or different, and represent a cyclohexyl group or a linear or branched alkyl group having 8 to 22 carbon atoms.
  • the ratio of the number of moles of cyclohexyl group to the total number of moles of cyclohexyl group and alkyl group [ ⁇ (number of cyclohexyl groups) / (number of cyclohexyl groups + alkyl group Number) ⁇ ⁇ 100] is 70 to 80 mol%.) 2.
  • a grease composition having a low stirring resistance can be provided.
  • the grease composition of the present invention can suppress the occurrence of oil film breakage without lowering the kinematic viscosity of the base oil, and can satisfy a sufficiently long life.
  • diurea grease As a thickener for grease, diurea grease having a long lubrication life and general versatility is generally used.
  • Such diurea grease is represented by the following formula (1):
  • R 2 represents a diphenylmethane group. 4,4-diphenylmethane is preferred.
  • R 1 and R 3 may be the same or different and each represents a cyclohexyl group or a linear or branched, preferably linear alkyl group having 8 to 22 carbon atoms, preferably 16 to 20 carbon atoms.
  • the ratio of the number of moles of cyclohexyl group to the total number of moles of cyclohexyl group and alkyl group [ ⁇ (number of cyclohexyl groups) / (number of cyclohexyl groups + number of alkyl groups) ) ⁇ ⁇ 100] is 70 to 80 mol%.
  • the amount of the thickener can be reduced.
  • the stirring resistance of the grease can be reduced.
  • the content of the thickener is 3 to 20% by mass, preferably 5 to 15% by mass, based on the mass of the grease composition of the present invention.
  • Metal soaps, benton, and silica gel do not satisfy heat resistance, that is, bearing lubrication life at high temperatures. Fluorine-based thickeners are very expensive, although they are satisfactory in heat resistance, and lack versatility.
  • the type and kinematic viscosity of the base oil in the present invention are not particularly limited.
  • the type and kinematic viscosity of the base oil can be selected as necessary.
  • the kinematic viscosity at 40 ° C. of the base oil contained in the grease used for the rolling bearing is preferably 10 to 200 mm 2 / s, more preferably 15 to 100 mm 2 / s.
  • a base oil may be used individually by 1 type, and may use 2 or more types together.
  • the types of base oils that can be used in the present invention are roughly classified into mineral oils and synthetic oils.
  • synthetic oils include diester oils, ester-based synthetic oils represented by polyol esters, poly- ⁇ -olefins, synthetic hydrocarbon oils represented by polybutene, ether-based synthetic oils represented by alkyl diphenyl ether, and polypropylene glycol.
  • Representative examples include polyglycol-based synthetic oils, silicone-based synthetic oils, and fluorine-based synthetic oils. Of these, synthetic oil is preferred because of its excellent heat resistance. Synthetic hydrocarbon oils and ester synthetic oils are more preferred. When these base oils are included, the stirring resistance at low temperatures can be further reduced.
  • the synthetic hydrocarbon oil is preferably poly- ⁇ -olefin.
  • ester synthetic oil pentaerythritol ester and trimethylolpropane ester are preferable.
  • the grease composition of the present invention can contain any additive as required.
  • antioxidants typified by amines and phenols
  • inorganic passivating agents such as sodium nitrite, sulfonates, succinic acids, amines, rust inhibitors typified by carboxylates, and benzotriazoles.
  • Representative metal corrosion inhibitors, fatty agents such as fatty acids, fatty acid esters and phosphate esters, antiwear and extreme pressure agents such as phosphorus, sulfur and organometallics, metal oxides and disulfides
  • solid lubricants typified by molybdenum. The amount of these components used is usually about 0.1 to 20% by mass, preferably 0.5 to 10% by mass.
  • the penetration of the grease composition of the present invention is adjusted according to the purpose of use, but is preferably 200 to 440. In particular, for bearings, if it is too soft, there is a concern of leakage, so 200 to 350 is preferable.
  • the grease composition of the present invention can be used by being enclosed in various machine parts.
  • various machine parts include rolling bearings, gears, ball screws, linear motion bearings, cams, and joints.
  • various motors for industrial machines various motors for office equipment, various motors for automobiles, rolling bearings used for automobile electrical parts and auxiliary machine parts, windmills, robots, reduction gears and speed increasers for automobiles, etc.
  • ⁇ Test method> ⁇ Agitation resistance (rheometer) The test was performed using a viscoelasticity measuring device manufactured by Anton Paar, Physica MCR301. The test grease was applied between the predetermined plates, and after setting the predetermined distance between the plates, the excess grease that protruded was removed. Then, the shear stress when rotating at the shear rate shown below was read. Test conditions are shown below. Shear rate: 1 to 10 4 s -1 Test temperature: 25 ° C Distance between plates: 0.2mm Plate diameter: 25mm ⁇ Evaluation> An average value of shear stress at a shear rate of 1 to 10 4 s ⁇ 1 was calculated and used as a measurement result. Less than 2000Pa ⁇ ⁇ ⁇ Pass 2000Pa or more ⁇ ⁇ ⁇ Fail

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

La présente invention concerne une composition de graisse contenant un agent épaississant et une huile de base, l'agent épaississant étant un composé de diurée représenté par la formule (1) et sa teneur dans la composition de graisse étant de 3 % à 20 % en poids. Dans la formule (1), R2 représente un groupe diphénylméthane et R1 et R3 peuvent être identiques ou différents et représentent chacun un groupe cyclohexyle ou un groupe alkyle en C8 à C22 linéaires ou ramifiées. Dans la formule (1), la proportion du nombre de moles de groupes cyclohexyles par rapport au nombre total de moles de groupes cyclohexyles et de groupes alkyles [{(nombre de groupes cyclohexyles)/((nombre de groupes cyclohexyles)+(nombre de groupes alkyles))}×100] est de 70 % à 80 % en mole.
PCT/JP2012/054256 2011-02-22 2012-02-22 Composition de graisse WO2012115141A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/983,665 US20130310292A1 (en) 2011-02-22 2012-02-22 Grease composition
KR1020137020084A KR20130118936A (ko) 2011-02-22 2012-02-22 그리스 조성물
CN201280009920.9A CN103415603B (zh) 2011-02-22 2012-02-22 润滑脂组合物
DE112012000940T DE112012000940T5 (de) 2011-02-22 2012-02-22 Schmiermittelzusammensetzung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-035734 2011-02-22
JP2011035734A JP2012172066A (ja) 2011-02-22 2011-02-22 グリース組成物

Publications (1)

Publication Number Publication Date
WO2012115141A1 true WO2012115141A1 (fr) 2012-08-30

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ID=46720917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/054256 WO2012115141A1 (fr) 2011-02-22 2012-02-22 Composition de graisse

Country Status (6)

Country Link
US (1) US20130310292A1 (fr)
JP (1) JP2012172066A (fr)
KR (1) KR20130118936A (fr)
CN (1) CN103415603B (fr)
DE (1) DE112012000940T5 (fr)
WO (1) WO2012115141A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017109644A (ja) * 2015-12-17 2017-06-22 日本精工株式会社 車両ステアリングシャフト用伸縮軸及び電動パワーステアリング装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009270058A (ja) * 2008-05-09 2009-11-19 Kyodo Yushi Co Ltd 等速ジョイント用グリース組成物及び等速ジョイント
JP6268642B2 (ja) 2014-03-12 2018-01-31 協同油脂株式会社 グリース組成物及びグリース封入車輪用軸受
JP6348050B2 (ja) * 2014-11-05 2018-06-27 日本グリース株式会社 風力発電機用生分解性グリース組成物
US10704010B2 (en) 2015-02-05 2020-07-07 Idemitsu Kosan Co., Ltd. Grease and method for manufacturing grease
WO2017171020A1 (fr) * 2016-03-31 2017-10-05 出光興産株式会社 Composition d'huile lubrifiante et réducteur de précision l'utilisant
JP6885686B2 (ja) 2016-07-26 2021-06-16 協同油脂株式会社 グリース組成物
JP2018065971A (ja) * 2016-10-21 2018-04-26 株式会社ジェイテクト グリース組成物および当該グリース組成物が封入された転がり軸受

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617079A (ja) * 1992-06-29 1994-01-25 Nippon Seiko Kk 高速ころがり軸受用グリース組成物
JP2008286230A (ja) * 2007-05-15 2008-11-27 Nsk Ltd モータ用転がり軸受
JP2009108263A (ja) * 2007-10-31 2009-05-21 Nsk Ltd グリース組成物及び転がり軸受
JP2009197162A (ja) * 2008-02-22 2009-09-03 Kyodo Yushi Co Ltd グリース組成物及び軸受

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5191219B2 (ja) * 2007-11-28 2013-05-08 コスモ石油ルブリカンツ株式会社 グリース組成物
JP5330773B2 (ja) * 2008-07-07 2013-10-30 昭和シェル石油株式会社 樹脂潤滑用グリース組成物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617079A (ja) * 1992-06-29 1994-01-25 Nippon Seiko Kk 高速ころがり軸受用グリース組成物
JP2008286230A (ja) * 2007-05-15 2008-11-27 Nsk Ltd モータ用転がり軸受
JP2009108263A (ja) * 2007-10-31 2009-05-21 Nsk Ltd グリース組成物及び転がり軸受
JP2009197162A (ja) * 2008-02-22 2009-09-03 Kyodo Yushi Co Ltd グリース組成物及び軸受

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017109644A (ja) * 2015-12-17 2017-06-22 日本精工株式会社 車両ステアリングシャフト用伸縮軸及び電動パワーステアリング装置

Also Published As

Publication number Publication date
DE112012000940T5 (de) 2013-11-21
CN103415603B (zh) 2017-04-26
CN103415603A (zh) 2013-11-27
US20130310292A1 (en) 2013-11-21
KR20130118936A (ko) 2013-10-30
JP2012172066A (ja) 2012-09-10

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