EP2164934B1 - Verwendung von ionischen flüssigkeiten zur verbesserung der eigenschaften von schmierstoffzusammensetzungen - Google Patents

Verwendung von ionischen flüssigkeiten zur verbesserung der eigenschaften von schmierstoffzusammensetzungen Download PDF

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Publication number
EP2164934B1
EP2164934B1 EP08758646.7A EP08758646A EP2164934B1 EP 2164934 B1 EP2164934 B1 EP 2164934B1 EP 08758646 A EP08758646 A EP 08758646A EP 2164934 B1 EP2164934 B1 EP 2164934B1
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Prior art keywords
oil
oils
laked
ester
bis
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German (de)
English (en)
French (fr)
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EP2164934A1 (de
Inventor
Günther BODESHEIM
Martin Schmidt-Amelunxen
Dieter Sohn
Stefan Grundei
Andrea HÖPKE
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Klueber Lubrication Muenchen GmbH and Co KG
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Klueber Lubrication Muenchen SE and Co KG
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    • 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
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/02—Unspecified siloxanes; Silicones
    • C10M2229/025—Unspecified siloxanes; Silicones used as base 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/04—Detergent property or dispersant property
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
    • 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
    • C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
    • 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
    • C10N2030/28—Anti-static
    • 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
    • C10N2030/60—Electro rheological properties
    • 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
    • C10N2030/74—Noack Volatility

Definitions

  • the invention relates to the use of lubricant composition which is protected against thermal and oxidative attack.
  • Lubricants are used in vehicle technology, materials handling, mechanical engineering, office technology, as well as in industrial plants and machines, but also in the fields of household appliances and consumer electronics.
  • lubricants ensure that between separating sliding or rolling parts a separating, load-transmitting lubricating film is built up. This ensures that the metallic surfaces do not touch and thus no wear occurs.
  • the lubricants must therefore meet high requirements. These include extreme operating conditions, such as very high or very low speeds, high temperatures caused by high speeds or foreign heating are very low temperatures, for example, in camps that work in cold environments or that occur in aerospace applications. Likewise, the modern lubricants under so-called clean room conditions should be used to avoid the pollution of the room by the abrasion or the consumption of lubricants.
  • Lubricants and special requirements in the application are made to the effect that the running properties of the bearings are not attacked by low friction, run the bearings quiet, and long running times are required without relubrication Also, lubricants must withstand force such as centrifugal force, gravity and vibration.
  • the object of the present invention was therefore to provide the use of a lubricant composition which meets the abovementioned requirements and whose thermal and oxidative resistance to known lubricants is improved.
  • the invention is defined in the claims.
  • This goal has surprisingly been achieved by the addition of ionic liquids to synthetic, mineral and native oils.
  • a grease composition is provided consisting of a base oil of a synthetic, mineral or native oil, singly or in The JP 2007 112828A relates to a lubricant composition containing as an essential ingredient an ionic liquid based on a 2,2-biimidazoline, imidazolinium, piperidinium or pyridinium cation having a hexafluorophosphate anion.
  • thickening agents and conventional additives may be present.
  • Lubricant loss lubricant compositions are disclosed which are suitable for use under vacuum conditions and high temperatures.
  • the US2007 / 0027038 A1 also discloses the advantageous properties of the ionic liquids used as a base oil in a range of 20 to 100 mass%.
  • the oils described utilize the beneficial properties of the ionic liquids to provide an oil that is protected against thermal and oxidative degradation. These oils are nonflammable and have excellent heat resistance. They are stored for a long time under radical conditions and thus stable against oxidative and thermal degradation.
  • the JP 2005 336309 A describes lubricant compositions containing at least one synthetic fluorine-free base oil having a low vapor pressure at 25 ° C and at least one fullerene compound and carbon particles obtained as a by-product in the production of the fullerene compound, and a thickener and a solid lubricant. No statement is made about thermal and oxidative stability, nor are quantities given. It is only pointed out the possibility of ionic liquids, since they have a low vapor pressure.
  • the synthetic oils are selected from an ester of an aromatic or aliphatic di-, tri- or tetracarboxylic acid with one or in mixture C 7 - to C 22 -alcohols, from a polyphenyl ether or alkylated di- or triphenyl ether, from an ester of trimethylolpropane, Pentaerythritol or dipentaerythritol with aliphatic C 7 to C 22 - carboxylic acids, from C 18 -Dimerklaestern with C 7 - to C 22 alcohols, from complex esters, as individual components or in any mixture.
  • the synthetic oil can be selected from poly- ⁇ - olefins, alkylated naphthalenes, alkylated benzenes, polyglycols, silicone oils, perfluoropolyethers.
  • the mineral oils can be selected from paraffinic, naphthenic, aromatic hydrocracking oils; GTL fluid.
  • GTL means gas-to-liquid process and describes a process for the production of fuel from natural gas. Natural gas is converted by steam reforming to synthesis gas, which is then converted by Fischer-Tropsch synthesis into fuels by means of catalysts. The catalysts and process condition control the fuel type, so whether gasoline, kerosene, diesel or oils are produced.
  • coal can be used as raw material according to the coal-to-liquid process (CTL) and biomass as raw material in the Biomass-to-Liquid (BTL) process.
  • CTL coal-to-liquid process
  • BTL Biomass-to-Liquid
  • animal / plant source triglycerides may be used, which may be refined by known methods such as hydrogenation.
  • the most preferred triglyceride oils are genetically modified triglyceride oils.
  • Typical and genetically modified high oleic vegetable oils used herein are safflower oil, Corn oil, rapeseed oil, sunflower oil, soybean oil, linseed oil, peanut oil, Lesquerella oil, Meadowfoam oil and palm oil.
  • the lubricant compositions contain from 5 to 95% by weight of base oil or base oil mixture, from 0.05 to 40% by weight of ionic liquid and optionally from 0.1 to 10% by weight of additives.
  • the lubricant compositions can be used by the addition of ionic liquids as high temperature chain oils, since they can be used at temperatures of up to 250 ° C. They can also be used by reducing the electrical resistance of the oils in areas where there is a constant flow of current through electric shocks, such as railway wheel bearings, roller bearings with electric current, in the automotive sector or electric motors to damage.
  • ionic liquids Due to the solubility in organic systems or solvents or due to the extremely low vapor pressure ionic liquids are superior as thermal and oxidative stabilizers against the antioxidants on phenolic or aminic base or perfluorinated salts. Even in high proportions, no crystals are formed in the lubricants with ionic liquids, which then, for example in the case of mechanical seals, lead to noise development and blockages and thus damage these components.
  • the thermal and oxidative stability of the lubricant compositions is reflected in the retardation of evaporation and viscosity increase, which slows the laking of the system at high temperatures and allows the lubricants to be used longer.
  • the polypropylene glycol used is a butanol-started polypropylene glycol.
  • the synthetic ester is dipentaerytite ester with short chain fatty acids, available under the name Hatco 2926.
  • N-butanol-started polyalkylene glycol available under the name Synalox 55-150B, was used.
  • a vibration friction wear test (SRV) based on DIN 51834, test condition ball / disc, 200 N load, 50 ° C., 1 mm stroke 50 Hz, 120 min. was carried out. The results are shown in Table 2.
  • MBPimido butylmethylpyrrolidinium bis (trifluoromethylsulfonyl) imide
  • HMP hexylmethylpyrrolidinium bis (trifluoromethylsulfonyl) imide
  • HMIMimide hexylmethylimidazolium bis (trifluoromethylsulfonyl) imide
  • BuPPFET tetrabutylphosphonium tris (perfluoroethyl) trifluorophosphate
  • HPYimid hexylpyridinium bis (trifluoromethyl) sulfonylimide
  • MOAac methyltrioctylammonium trifluoroacetate
  • MBPPFET butylmethylpyrrolidinium tris (pentafluoroethy
  • MOAac methyltrioctylammonium trifluoroacetate
  • HPDimide trihexyl (tetradecyl) phosphonium bis (trifluoromethylsulfonyl) imide
  • Ecoeng 500 PEG-5-cocomonium methylsulfate.
  • ionic liquid oil Evaporation loss after 24 h - 99.0% NAT.

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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)
  • Lubricants (AREA)
EP08758646.7A 2007-06-20 2008-05-20 Verwendung von ionischen flüssigkeiten zur verbesserung der eigenschaften von schmierstoffzusammensetzungen Active EP2164934B1 (de)

Applications Claiming Priority (2)

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DE102007028427A DE102007028427A1 (de) 2007-06-20 2007-06-20 Verwendung von ionischen Flüssigkeiten zur Verbesserung der Eigenschaften von Schmierstoffzusammensetzungen
PCT/EP2008/004036 WO2008154998A1 (de) 2007-06-20 2008-05-20 Verwendung von ionischen flüssigkeiten zur verbesserung der eigenschaften von schmierstoffzusammensetzungen

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EP (1) EP2164934B1 (pt)
JP (1) JP2010530447A (pt)
KR (2) KR20090130138A (pt)
CN (1) CN101688144A (pt)
BR (1) BRPI0813381B1 (pt)
CA (1) CA2687498A1 (pt)
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RU (1) RU2516705C2 (pt)
WO (1) WO2008154998A1 (pt)

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DE102020102462A1 (de) 2020-01-31 2021-08-05 IoLiTec Ionic Liquids Technologies GmbH Ionische Flüssigkeiten enthaltende Schmierstoffzusammensetzung

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US20120202724A1 (en) 2012-08-09
CA2687498A1 (en) 2008-12-24
DE102007028427A1 (de) 2008-12-24
RU2516705C2 (ru) 2014-05-20
KR20090130138A (ko) 2009-12-17
CN101688144A (zh) 2010-03-31
BRPI0813381A2 (pt) 2014-12-30
KR20120048035A (ko) 2012-05-14
US20100187481A1 (en) 2010-07-29
EP2164934A1 (de) 2010-03-24
JP2010530447A (ja) 2010-09-09
WO2008154998A1 (de) 2008-12-24
US8697618B2 (en) 2014-04-15
BRPI0813381B1 (pt) 2017-05-30

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