WO2023182533A1 - Composition de graisse - Google Patents

Composition de graisse Download PDF

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Publication number
WO2023182533A1
WO2023182533A1 PCT/JP2023/012238 JP2023012238W WO2023182533A1 WO 2023182533 A1 WO2023182533 A1 WO 2023182533A1 JP 2023012238 W JP2023012238 W JP 2023012238W WO 2023182533 A1 WO2023182533 A1 WO 2023182533A1
Authority
WO
WIPO (PCT)
Prior art keywords
solid lubricant
mass
grease composition
grease
base oil
Prior art date
Application number
PCT/JP2023/012238
Other languages
English (en)
Japanese (ja)
Inventor
佳之 永澤
智絵実 中山
大介 筒井
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
Publication of WO2023182533A1 publication Critical patent/WO2023182533A1/fr

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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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
    • C10M107/34—Polyoxyalkylenes
    • 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
    • C10M125/10—Metal oxides, hydroxides, carbonates or bicarbonates
    • 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
    • C10M125/24—Compounds containing phosphorus, arsenic or antimony
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M147/00—Lubricating compositions characterised by the additive being a macromolecular compound containing halogen
    • C10M147/02—Monomer containing carbon, hydrogen and halogen 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
    • 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

Definitions

  • This case relates to a grease composition that can be suitably used for mechanical parts that require peeling resistance, such as reduction gears and ball screws.
  • Reactive anti-flake additives work by reacting on the metal surface to form a protective film.
  • NBR nitrile rubber
  • the sealing material may deteriorate due to low temperatures in winter or heat damage in tropical climates. Deterioration of the sealing material also occurs when the base oil contained in the grease that comes into contact with the sealing material causes the sealing material to swell. Therefore, if a mechanical component equipped with a sealing material is used for a long period of time, there is a risk that foreign matter may enter from the outside, leading to poor lubrication and shortening the life of the mechanical component.
  • polyoxyalkylene or polyoxyalkylene derivatives are used as base oils that have excellent compatibility with rubber and can be applied to mechanical parts where EPDM or natural rubber is used for sealing members.
  • a grease composition that can extend the life of mechanical parts by suppressing the occurrence of flaking of the mechanical parts even under high temperatures or high surface pressures.
  • Non-reactive anti-peeling additives (solid lubricants) play a role by adhering to metal surfaces and preventing contact between metals, but they have greater anti-peeling properties than reactive anti-peeling additives. As a result, the resulting grease lacked versatility.
  • the problem to be solved by the present invention is to improve the peeling resistance of a grease composition containing polyoxyalkylene or a polyoxyalkylene derivative as a base oil, even under high temperature or high surface pressure.
  • the objective is to improve the anti-flamination properties without using anti-flake additives and to suppress thermal deterioration of the base oil.
  • the present inventors solved the above-mentioned problem of improving peeling resistance by using a non-reactive solid lubricant. That is, the present invention provides the following grease composition. 1. A grease composition containing a base oil, a thickener, and an additive, The base oil is at least one selected from the group consisting of polyoxyalkylene, ether derivatives of polyoxyalkylene, and mixtures thereof, The additive contains polytetrafluoroethylene as the first solid lubricant, and at least one member selected from the group consisting of calcium carbonate, calcium oxide, tricalcium phosphate, and calcium salts of fatty acids as the second solid lubricant.
  • the grease composition wherein the content of the second solid lubricant is 0.5% by mass or more based on the total mass of the composition.
  • 2. 1. The grease composition according to item 1, wherein the content of the first solid lubricant is 0.5 to 20% by mass based on the total mass of the composition. 3.
  • 3. The grease composition according to item 1 or 2 above, wherein the content of the second solid lubricant is 0.5 to 10% by mass based on the total mass of the composition. 4.
  • 4. The grease composition according to any one of items 1 to 3 above, wherein the second solid lubricant is calcium carbonate. 5.
  • the grease composition can be made to withstand even under high temperature or high surface pressure without using anti-flamination additives in the reaction system and without promoting the decomposition of polyoxyalkylene and/or ether derivatives of polyoxyalkylene. Peelability and heat resistance can be improved.
  • the base oil used in the grease composition of the present invention is a polyoxyalkylene and/or an ether derivative of a polyoxyalkylene.
  • Polyoxyalkylene and/or ether derivatives of polyoxyalkylene have low adverse effects on rubber, which is a sealing material.
  • the polyoxyalkylene and/or the ether derivative of polyoxyalkylene is represented by the following formula (1).
  • Polyoxyalkylene or its ether derivative means that R 1 and R 3 in formula (1) are each independently hydrogen, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, or pentyl group. is an alkyl group having 1 to 6 carbon atoms such as hexyl group, R 2 is hydrogen or an alkyl group having 1 to 2 carbon atoms, and n is a compound having a number of 5 to 55.
  • Polyoxyalkylene is a diol obtained by ring-opening polymerization of alkylene oxide such as ethylene oxide and propylene oxide.
  • the ether derivative is a monoether in which either R 1 or R 3 is an alkyl group having one or more carbon atoms, or a diether in which both R 1 and R 3 are an alkyl group having one or more carbon atoms.
  • polyoxyalkylene diols include polyoxyethylene, polyoxypropylene, poly(oxypropyleneoxyethylene), poly(oxybutyleneoxyethylene), poly(oxybutyleneoxypropylene), and poly(oxypentyleneoxyethylene).
  • ether derivatives of polyoxyalkylene include polyoxypropylene monopropyl ether, polyoxypropylene monobutyl ether, polyoxybutylene monobutyl ether, polyoxyethylene oxypropylene monopropyl ether, polyoxyethylene oxypropylene monobutyl ether, polyoxy Examples include ethylene oxypropylene monopentyl ether.
  • suitable base oils for the present invention are polyoxyalkylene in which R 2 is an alkyl group having 1 or more carbon atoms or its ether derivative, preferably polyoxypropylene monobutyl ether, and particularly preferably n is 10 to 10. 25, more particularly preferably polyoxypropylene monobutyl ether where n is 10 to 22.
  • the base oil of the present invention may be a so-called biomass oil that is produced using biological resources derived from animals and plants as raw materials.
  • the base oil of the present invention preferably has a kinematic viscosity of 2 to 100 mm 2 /s at 100°C. This provides excellent low temperature properties.
  • the kinematic viscosity at 100° C. is more preferably 2 to 50 mm 2 /s, even more preferably 2 to 20 mm 2 /s, and particularly preferably 6 to 19 mm 2 /s.
  • the base oil of the present invention preferably has a pour point of -10°C or lower. This provides excellent low temperature properties.
  • the pour point is more preferably -20°C or lower, even more preferably -30°C or lower, particularly preferably -35°C or lower.
  • the base oil of the present invention is a polyoxypropylene monomer having a kinematic viscosity of 6 to 19 mm 2 /s at 100°C, a pour point of -35°C or lower, and in which n is 10 to 22 in formula (1). Butyl ether is most preferred.
  • the base oil content in the grease composition of the present invention is, for example, preferably 60 to 90% by mass, more preferably 60 to 80% by mass.
  • the first solid lubricant in the present invention is polytetrafluoroethylene.
  • the content of the first solid lubricant is preferably 0.5% by mass or more based on the total mass of the composition. This provides excellent peeling resistance. More preferably, it is 1% by mass or more. From the viewpoint of grease inflow, the upper limit is preferably 20% by mass or less, more preferably 15% by mass or less.
  • the second solid lubricant in the present invention is at least one selected from the group consisting of calcium carbonate, calcium oxide, tricalcium phosphate, and calcium salts of fatty acids.
  • calcium carbonate is preferred from the viewpoint of peeling resistance.
  • the fatty acid constituting the calcium salt of fatty acid is preferably a fatty acid having 1 to 22 carbon atoms, more preferably a fatty acid having 16 to 20 carbon atoms.
  • the second solid lubricant is preferably larger in particle size than the first solid lubricant, PTFE, from the viewpoint of improving peeling resistance when used in combination.
  • the content of the second solid lubricant is 0.5% by mass or more based on the total mass of the composition. This provides excellent peeling resistance.
  • the content does not need to be the same as that of the first solid lubricant. More preferably, it is 1% by mass or more. From the viewpoint of grease inflow, the upper limit is preferably 10% by mass or less, more preferably 5% by mass or less.
  • the peeling resistance of the grease composition is particularly excellent. Therefore, from the viewpoint of peeling resistance, it is particularly preferable that calcium carbonate, which has a particle size larger than that of PTFE, be contained in an amount of 1 to 3 parts by mass per 10 parts by mass of PTFE.
  • the total amount of the first solid lubricant and the second solid lubricant in the grease composition of the present invention is preferably 1 to 20% by mass, more preferably 5 to 15% by mass. It is preferable that the total amount of the first solid lubricant and the second solid lubricant be within this range, since the influence of grease inflow properties on performance is small.
  • first and second solid lubricants of the present invention do not have polarity, even if they are included in polyoxyalkylene and/or ether derivatives of polyoxyalkylene, they will not be affected by the base oil and will have peeling resistance. can improve sex.
  • the presence of polytetrafluoroethylene, which has a smaller particle size than the second solid lubricant, in the lubrication field provides excellent peeling resistance, while the second solid lubricant This makes it possible to stably supply the oil to the lubrication field, which is thought to significantly improve flaking resistance.
  • the thickener for the grease of the present invention can be used without particular limitations. Specifically, soap-based thickeners such as Li soap and Li-complex soap, urea-based thickeners such as diurea, inorganic thickeners such as organic bentonite and silica, and sodium terephthalate are used. Examples include organic thickeners typified by . Among these, Li soap and diurea compounds are preferred. This is because these are practical thickeners because they have few drawbacks and are not expensive.
  • Li-(12OH)St lithium 12-hydroxystearate
  • Li-St lithium stearate
  • Li-St lithium stearate
  • Li complex soaps include complexes of lithium salts of aliphatic carboxylic acids such as stearic acid and 12-hydroxystearic acid and lithium salts of dibasic acids.
  • dibasic acids include succinic acid, malonic acid, adipic acid, pimelic acid, azelaic acid, and sebacic acid.
  • Azelaic acid and sebacic acid are preferred.
  • a Li complex soap which is a mixture of a salt of azelaic acid and lithium hydroxide and a salt of 12-hydroxystearic acid and lithium hydroxide.
  • a diurea compound is generally represented by the following formula (2).
  • R 4 -NHCONH-R 5 -NHCONH-R 6 (2) (In the formula, R 4 and R 6 may be the same or different and represent a C6-30 alkyl group, a C5-8 cycloalkyl group, or a C6-10 aryl group, and R 5 is a C6-15 (Indicates a divalent aromatic hydrocarbon group.)
  • Examples of diurea compounds include aliphatic diureas in which R 4 and R 6 are C6-30 alkyl groups which may be the same or different; one of R 4 and R 6 is a C5-8 cycloalkyl group, and the other is a C6-30 alkyl group; A cycloaliphatic diurea which is a -30 alkyl group, or an aromatic diurea where R 4 and R 6 are a C6-10 aryl group which may be the same or different from each other is preferred.
  • the aliphatic diureas include aliphatic diureas in which both R 4 and R 6 are C8 alkyl groups, aliphatic diureas in which both R 4 and R 6 are C18 alkyl groups, and aliphatic diureas in which one of R 4 and R 6 is C8 alkyl groups. More preferred are aliphatic diureas in which one is an alkyl group and the other is a C18 alkyl group. Particularly preferred are aliphatic diureas in which one of R 4 and R 6 is a C8 alkyl group and the other is a C18 alkyl group.
  • aliphatic diureas in which the ratio of the number of moles of the C8 alkyl group to the total number of moles of the C8 alkyl group and the C18 alkyl group is 30 to 70 mol %.
  • an alicyclic aliphatic diurea in which one of R 4 and R 6 is a cyclohexyl group and the other is a C18 alkyl group is more preferable.
  • an alicycloaliphatic diurea in which the ratio of the number of moles of the cyclohexyl group to the total number of moles of the cyclohexyl group and the C18 alkyl group is 30 to 90 mol%.
  • an aromatic diurea an aromatic diurea in which both R 4 and R 6 are p-tolyl groups is particularly preferred.
  • the content of the thickener in the grease composition of the present invention is, for example, preferably 4 to 25% by mass, more preferably 5 to 20% by mass.
  • the grease has appropriate hardness and prevents leakage from lubricated parts, which is preferable.
  • the grease composition of the present invention can optionally contain any additives commonly used in grease compositions. Examples include antioxidants, rust preventives, corrosion inhibitors, oiliness agents, viscosity index improvers, and the like. Preferably, it contains an antioxidant and/or a rust inhibitor.
  • reactive additives i.e., additives that react at lubricated surfaces to produce components that degrade the base oil, such as molybdenum disulfide, amine phosphates, zinc dialkyldithiophosphates, and molybdenum dialkyldithiocarbamates
  • antioxidants include amine-based, phenol-based, quinoline-based, and sulfur-based antioxidants, with amine-based and quinoline-based antioxidants being preferred.
  • rust preventives include zinc-based, carboxylic acid-based, carboxylate-based, succinic acid-based, amine-based, sulfonate-based, and naphthenic acid-based. Amine type and naphthenic acid type are preferred. Mixtures of these are more preferred.
  • corrosion inhibitors include thiadiazole, benzimidazole, and benzotriazole.
  • oily agents include fatty acids, fatty acid esters, and phosphoric acid esters.
  • the consistency of the grease composition of the present invention is adjusted depending on the intended use, but is preferably 235 to 370. By setting the consistency to 235 or more, a grease composition with excellent low-temperature properties can be obtained, and by setting the consistency to 370 or less, a grease composition with excellent adhesion to mechanical parts can be obtained.
  • the term "penetration" refers to 60 times worked penetration. Consistency is JIS K2220 7. It can be measured according to
  • the use of the grease composition of the present invention does not matter.
  • rolling bearings, ball screws, linear guide bearings, reducers, injection molding machines, linear guides, machine tools, various gears, cams, constant velocity joints, journal bearings (sliding bearings), pistons, screws, ropes, chains, etc. can be mentioned.
  • the heat resistance and flaking resistance required for reducers, ball screws, etc. are severe, and the grease composition of the present invention can satisfy such high demands.
  • the type of sealing material provided in the mechanical parts is not particularly limited, and examples thereof include NBR, EPDM, natural rubber, and the like.
  • Test grease composition in which the thickener is a diurea compound 1 mole of 4.4'-diphenylmethane diisocyanate was reacted with 2 moles of a predetermined amine in a base oil, and the mixture was cooled to obtain a base grease. Additives were added to the above base grease in the proportions shown in Table 1, additional base oil was added to give the amount of thickener in the proportions shown in Table 1, and the test grease was prepared by dispersing with a three-roll mill. A composition was prepared. The consistency of the test grease composition is 280.
  • Test grease composition in which the thickener is lithium soap Lithium 12-hydroxystearate was added and stirred in base oil, and then heated to 230°C. Thereafter, the mixture was cooled to 100° C. or lower while stirring to obtain a base grease. Additives were blended into the above base grease in the proportions shown in Tables 1 and 2, additional base oil was added so that the amount of thickener was in the proportions shown in Tables 1 and 2, and the mixture was processed using a three-roll mill. Test grease compositions were prepared by dispersing. The consistency of the test grease composition is 280. The mass % of each component in each test grease composition is as shown in Tables 1 and 2.
  • the kinematic viscosity of the base oil at 100°C is JIS K2220 23. Measured according to The pour point of the base oil was measured according to JIS K2269. The consistency of the grease composition is JIS K2220 7. Measured according to The grease composition obtained above was tested and evaluated by the method shown below.
  • Test steel ball ⁇ 5/8in, Ra0.45 ⁇ m bearing steel ball (rotating ball) Steel ball for ⁇ 15mm bearing (driven ball)
  • Test load 400kgf (6.5GPa)
  • Rotation speed 1200rpm
  • Evaluation criteria 150,000 times or more... ⁇ (pass) 100,000 times or more - less than 150,000 times... ⁇ (pass) 50,000 or more - less than 100,000 times... ⁇ (fail) Less than 50,000 times... ⁇ (fail) The results are shown in Tables 1 and 2.
  • the first solid lubricant, polytetrafluoroethylene, and the second solid lubricant at least one selected from calcium carbonate, calcium oxide, tricalcium phosphate, and calcium salts of fatty acids, are used in combination.
  • Examples 1 to 15 have superior peeling resistance compared to Comparative Examples 1 to 6, 9, and 10.
  • Examples 1 to 15 have better heat resistance than Comparative Examples 7 to 10.
  • the heat resistance of grease differs depending on the type of thickener, but the improvement in heat resistance in the examples was observed for both Li soap and urea-based thickener.
  • the first solid additive and the second solid additive prescribed in the present application together as additives, it is possible to eliminate the need to use a flaking-resistant additive in the reaction system and without selecting a thickener. It is possible to improve the peeling resistance and heat resistance of grease even at high temperatures or high surface pressures.

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)

Abstract

La présente invention concerne une composition de graisse qui contient une huile de base, un épaississant et des additifs, l'huile de base étant au moins un type d'huile de base choisi dans le groupe consistant en les polyoxyalkylènes, les dérivés éthers des polyoxyalkylènes et les mélanges de polyoxyalkylènes et de dérivés éthers de polyoxyalkylènes, et les additifs comprenant un premier lubrifiant solide qui est un polytétrafluoréthylène et un second lubrifiant solide qui est au moins un type de lubrifiant solide choisi dans le groupe qui consiste en le carbonate de calcium, l'oxyde de calcium, le phosphate tricalcique et les sels de calcium d'acides gras, la teneur en le second lubrifiant solide étant d'au moins 0,5 % en masse par rapport à la masse totale de la composition.
PCT/JP2023/012238 2022-03-25 2023-03-27 Composition de graisse WO2023182533A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-049292 2022-03-25
JP2022049292 2022-03-25

Publications (1)

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WO2023182533A1 true WO2023182533A1 (fr) 2023-09-28

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007231207A (ja) * 2006-03-02 2007-09-13 Showa Shell Sekiyu Kk 潤滑剤組成物
JP2009191173A (ja) * 2008-02-14 2009-08-27 Nsk Ltd グリース組成物及び転動装置
JP2009227958A (ja) * 2007-08-28 2009-10-08 Showa Shell Sekiyu Kk 潤滑剤組成物
JP2010037529A (ja) * 2008-07-07 2010-02-18 Showa Shell Sekiyu Kk 樹脂潤滑用グリース組成物
JP2013082817A (ja) * 2011-10-11 2013-05-09 Japan Lublight Ltd ペースト状潤滑剤組成物
JP2015137294A (ja) * 2014-01-21 2015-07-30 Ｎｏｋクリューバー株式会社 潤滑剤組成物
JP2017019987A (ja) * 2015-07-07 2017-01-26 日本グリース株式会社 グリース組成物およびその製造方法
CN107164029A (zh) * 2017-05-26 2017-09-15 苏州惠丰润滑材料有限公司 一种环境友好型盾构机盾尾密封油脂及其制备方法
JP2017171717A (ja) * 2016-03-22 2017-09-28 住鉱潤滑剤株式会社 非延焼性グリース組成物
JP2018016686A (ja) * 2016-07-26 2018-02-01 オリジン電気株式会社 潤滑グリース組成物
JP2018062569A (ja) * 2016-10-13 2018-04-19 東レ・ダウコーニング株式会社 グリース組成物およびその製造方法
WO2018101432A1 (fr) * 2016-11-30 2018-06-07 ミネベアミツミ株式会社 Composition de graisse et roulement
WO2020026915A1 (fr) * 2018-07-31 2020-02-06 株式会社ハーベス Composition de graisse, composition de graisse à base d'huile de base multiple, composition de lubrifiant et élément en résine de polypropylène
JP2021509423A (ja) * 2017-12-21 2021-03-25 ディーディーピー スペシャルティ エレクトロニック マテリアルズ ユーエス ９ リミテッド ライアビリティ カンパニー 潤滑グリース組成物
JP2021070779A (ja) * 2019-11-01 2021-05-06 協同油脂株式会社 グリース組成物

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007231207A (ja) * 2006-03-02 2007-09-13 Showa Shell Sekiyu Kk 潤滑剤組成物
JP2009227958A (ja) * 2007-08-28 2009-10-08 Showa Shell Sekiyu Kk 潤滑剤組成物
JP2009191173A (ja) * 2008-02-14 2009-08-27 Nsk Ltd グリース組成物及び転動装置
JP2010037529A (ja) * 2008-07-07 2010-02-18 Showa Shell Sekiyu Kk 樹脂潤滑用グリース組成物
JP2013082817A (ja) * 2011-10-11 2013-05-09 Japan Lublight Ltd ペースト状潤滑剤組成物
JP2015137294A (ja) * 2014-01-21 2015-07-30 Ｎｏｋクリューバー株式会社 潤滑剤組成物
JP2017019987A (ja) * 2015-07-07 2017-01-26 日本グリース株式会社 グリース組成物およびその製造方法
JP2017171717A (ja) * 2016-03-22 2017-09-28 住鉱潤滑剤株式会社 非延焼性グリース組成物
JP2018016686A (ja) * 2016-07-26 2018-02-01 オリジン電気株式会社 潤滑グリース組成物
JP2018062569A (ja) * 2016-10-13 2018-04-19 東レ・ダウコーニング株式会社 グリース組成物およびその製造方法
WO2018101432A1 (fr) * 2016-11-30 2018-06-07 ミネベアミツミ株式会社 Composition de graisse et roulement
CN107164029A (zh) * 2017-05-26 2017-09-15 苏州惠丰润滑材料有限公司 一种环境友好型盾构机盾尾密封油脂及其制备方法
JP2021509423A (ja) * 2017-12-21 2021-03-25 ディーディーピー スペシャルティ エレクトロニック マテリアルズ ユーエス ９ リミテッド ライアビリティ カンパニー 潤滑グリース組成物
WO2020026915A1 (fr) * 2018-07-31 2020-02-06 株式会社ハーベス Composition de graisse, composition de graisse à base d'huile de base multiple, composition de lubrifiant et élément en résine de polypropylène
JP2021070779A (ja) * 2019-11-01 2021-05-06 協同油脂株式会社 グリース組成物

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