EP1967574A1 - Composition de lubrifiant - Google Patents

Composition de lubrifiant Download PDF

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Publication number
EP1967574A1
EP1967574A1 EP07103164A EP07103164A EP1967574A1 EP 1967574 A1 EP1967574 A1 EP 1967574A1 EP 07103164 A EP07103164 A EP 07103164A EP 07103164 A EP07103164 A EP 07103164A EP 1967574 A1 EP1967574 A1 EP 1967574A1
Authority
EP
European Patent Office
Prior art keywords
molybdenum
lubricant composition
composition according
lubricant
oils
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.)
Withdrawn
Application number
EP07103164A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Hensel
Volker Von Drach
Rachel Kling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Setral Chemie GmbH
Original Assignee
Setral Chemie GmbH
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 Setral Chemie GmbH filed Critical Setral Chemie GmbH
Priority to EP07103164A priority Critical patent/EP1967574A1/fr
Priority to PCT/EP2008/001547 priority patent/WO2008104384A2/fr
Publication of EP1967574A1 publication Critical patent/EP1967574A1/fr
Withdrawn legal-status Critical Current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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
    • 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • 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
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • 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
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C10M2201/0413—Carbon; Graphite; Carbon black 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/061—Carbides; Hydrides; Nitrides
    • 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
    • C10M2201/062—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
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/0653—Sulfides; Selenides; Tellurides 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • 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
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/081—Inorganic acids or salts thereof containing halogen
    • 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
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/084—Inorganic acids or salts thereof 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
    • C10M2201/087—Boron oxides, acids or 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
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/06—Groups 3 or 13
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/08—Groups 4 or 14
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/12—Groups 6 or 16
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/14—Group 7
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/16—Groups 8, 9, or 10
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015—Dispersions of solid lubricants
    • 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
    • C10N2050/015—Dispersions of solid lubricants
    • C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
    • 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
    • C10N2050/08—Solids
    • 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 lubricant composition which is particularly suitable as a solid lubricant additive for various applications, such as friction linings, engineering plastics, suspensions, lubricants and causes an improvement in the technical properties of the addit Being products, coupled with an optimization of their economics.
  • Lubricating oils are usually added to a solid lubricant additive in order to improve the tribological and wear-reducing properties of the lubricant, in particular under load (pressure and / or temperature).
  • metal sulfides such as molybdenum disulfide, tungsten disulfide, tin sulfides, bismuth trisulfide, antimony trisulfide, zinc sulfide, etc. are often used. There is extensive art which describes the use of such metal sulfides.
  • the WO 00/52116 describes a lubricant composition containing a layered lamellar solid lubricant, such as tin disulfide, and optionally other solid lubricants.
  • a layered lamellar solid lubricant such as tin disulfide, and optionally other solid lubricants.
  • the EP 244 099 A describes solid lubricant additives for gear oils containing molybdenum disulfide, graphite, tungsten disulfide, tin sulfide, polytetrafluoroethylene, etc.
  • the EP 606 970 describes a solid lubricant composition
  • a solid lubricant composition comprising 30 to 70 parts by weight of graphite and 70 to 30 parts by weight of a mixture of at least two components selected from (a) alkali molybdate, (b) an alkali and / or alkaline earth sulfate, and (c) an alkali phosphate the ratio of the two components is in the range of 0.05 / 1 to 20/1.
  • the composition has good film-forming properties and good lubricity, with the coefficient of friction being substantially unaffected by external conditions. In addition, it does not appear corrosive to the lubricated substrates.
  • the lubricity of the known lubricant compositions is unsatisfactory. There has now been found a lubricant composition which has excellent lubricity.
  • the component (a) is preferably used in an amount in the range of 10 to 80 wt .-%, in particular 30 to 70 wt .-% and particularly preferably 40 to 60 wt .-%, based on the total weight of the composition.
  • Component (b) is generally used in an amount of from 20 to 75% by weight, preferably from 30 to 70% by weight and in particular from 40 to 60% by weight, based on the total weight of the composition.
  • the component (c) is used generally in an amount in the range of 0.1 to 10 wt .-%, preferably 0.2 to 8 wt .-% and in particular 0.5 to 6 wt .-%, based on the Total weight of the composition.
  • the component (c) is in particular organic molybdenum compounds. These include molybdenum dithiocarbamates and molybdenum dithiophosphates and the sulfurized derivatives thereof.
  • the molybdenum dithiocarbamates are preferably those of the formula (1) wherein R 1 and R 2 independently of one another are H or a hydrocarbon radical, where at least one of the radicals is a hydrocarbon radical, X is O or S, b is at least 2 and a is at least 1, depending on the oxidation state of the molybdenum, c in Depending on the oxidation state of the molybdenum is at least 1 and d is 0 or at least 1, depending on the oxidation state of the molybdenum.
  • a and b are in the range of 1 to 5
  • c is in the range of 1 to 6
  • d is generally 0 or in the range of 2 to 10.
  • a is 1 or 2
  • b is 1 or 2
  • c for 1 or 2
  • d for 0 or 2.
  • the hydrocarbon radicals comprise in particular 3 to 26 carbon atoms and more preferably 4 to 18 carbon atoms. They may be aliphatic radicals, such as alkyl or alkenyl groups, alicyclic radicals, such as cycloalkyl or cycloalkenyl groups, aromatic radicals, such as phenyl or naphthyl groups, which may optionally be substituted. Suitable substituents for the aliphatic radicals are halogen, in particular chlorine or fluorine, amino, C 1 -C 12 -alkoxy, mercapto, C 1 -C 12 -alkylmercapto, etc. Suitable substituents for alicyclic radicals are the abovementioned substituents and also phenyl. Suitable substituents for aromatic radicals are, in particular, alkyl radicals having preferably 1 to 12 carbon atoms.
  • molybdenum dithiocarbamates of the formulas are used: wherein a is at least 2 and R 1 , R 2 and X have the meanings given above.
  • R 2 is hydrogen and X is S.
  • the molybdenum is preferably present at the oxidation state +5 or +6.
  • Examples of molybdenum dithiocarbamates are molybdenum di-n-butyl dithiocarbamate, which is commercially available under the name Molyvan A from Vanderbilt, and molybdenum ditridecyldithiocarbamate, which is commercially available under the name Molyvan 807 from Vanderbilt.
  • Molybdenum dithiocarbamates and their preparation are for example in the US 4,846,983 to which reference is made in its entirety.
  • Molybdenum di (2-ethylhexyl) phosphorothioate and the sulfurized derivative thereof of the formula are particularly preferred.
  • Molybdenum dithiophosphates and their preparation are for example in the US 5,055,174 to which reference is made in its entirety.
  • the preparation of the lubricant compositions according to the invention is carried out by mixing and homogenizing the components.
  • the procedure is such that components (a) and (b) are first mixed and homogenized.
  • conventional devices such as slow-rotating wing mixer or plowshare mixer.
  • components (a) and (b) may be milled together, conveniently to a particle size in the range of 100 nm to 25 ⁇ m.
  • the mixture obtained by homogenizing or grinding components (a) and (b) may also be referred to as activated graphite.
  • Component (c) may be mixed before or during homogenization or milling or after.
  • the grinding of the components (a) or (b) is carried out by means of conventional devices, in particular with a ball mill or colloid mill.
  • the lubricant compositions according to the invention may additionally contain one or more further lubricants.
  • These may be polytetrafluoroethylene (PTFE) or boron nitride or metal sulfides selected from tin monosulfide (SnS), tin disulfide (SnS 2 ), tin trisulfide (Sn 2 S 3 ) or mixed sulfides thereof, zinc sulfide, bismuth III sulfide ( Bi 2 S 3 ), molybdenum disulfide, antimony trisulfide (Sb 2 S 3 ), tungsten disulfide, copper sulfides (CuS, Cu 2 S) or mixed sulfides thereof, iron sulfides (FeS, Fe 2 S 3 or mixed sulfides thereof) and mixtures thereof.
  • PTFE polytetrafluoroethylene
  • SnS tin monosulfide
  • SnS 2 tin dis
  • the lubricant composition contains an additional lubricant, this is generally present in a proportion of 1 to 40 wt .-%, preferably 5 to 30 wt .-%, in particular 10 to 25 wt .-% and particularly preferably 10 to 20 wt. %, based on the total weight of the composition.
  • the lubricant compositions of the invention may optionally contain other conventional components.
  • examples of such components are binders or thickeners, as described below in connection with the semi-solid Lubricants to which the lubricant compositions may be added, are specified.
  • the lubricant compositions according to the invention may also contain organic fillers, in particular polymers, such as PTFE, polyethylene or aramid powder (eg Twaron® 5011 from Teijin Twaron) and cellulose fibers (eg Arbocel® from Rettenmaier or Setralit® NfU / 346/1 from ECCO).
  • Useful polyolefin oils are, in particular, polymers of C 8 -C 12 - ⁇ -olefins.
  • Polyether oils include aliphatic polyether oils such as poly (alkylene glycols), e.g. As polyethylene glycol, poly (propylene glycol) and copolymers thereof and the mono- and diethers, mono- or diesters and desired ether esters thereof. There are water-soluble and water-insoluble types into consideration. Aliphatic polyether oils also include perfluoropolyalkyl ethers. Preferred polyether oils are polyphenyl ethers and alkylated polyphenyl ethers.
  • Branched primary alcohols are, in particular, the alcohols obtained by oxosynthesis or aldol condensation, such as 2-ethylhexanol and the C 7 , C 8 and C 9 oxo alcohols.
  • Sebacin, azelaic and adipic acid are particularly preferred as the dicarboxylic acid.
  • poly (alkylene glycol) poly (ethylene glycol) having a molecular weight of 100 to 600 is preferred.
  • esters of neopentyl polyols are, in particular, esters of neopentyl glycol, trimethylolethane, trimethylolpropane, pentaerythritol and the ethoxylated and / or propoxylated products thereof.
  • Preference according to the invention is given to mineral oils, ester oils and polyether oils.
  • liquid lubricants are engine oils, gear oils, turbine oils, hydraulic fluids, pump oils, heat transfer fluids, insulating oils, drilling oils, cutting oils, compressor oils, chain oils, glassmaking oils, release oils, gun oils, cylinder oils, solvent or water based slip coatings (prior to evaporation of the carrier fluid), coolants Etc.
  • Semi-solid lubricants are generally based on mineral or synthetic oils (as noted above) in conjunction with suitable thickening agents.
  • semi-solid lubricants are greases, pastes, carriage greases, rolling and plain bearing greases, etc.
  • lubricant compositions of the present invention may be combined with other solid lubricants in any proportion.
  • the lubricant compositions of the invention are liquid to semi-solid lubricants, such as oils and fats, generally in an amount of 0.1 to 25 wt .-%, preferably 0.2 to 15 wt .-% and in particular 0.5 to 2 wt. -%, based on the total weight of the lubricant added.
  • the addition of the lubricant additive may also be such that the homogenized or ground mixture of components a) and b) and component c) are added separately to the lubricant.
  • a particular form of semi-solid lubricants are pastes.
  • the addition of the lubricant compositions according to the invention is generally from 10 to 75 wt .-%, preferably 20 to 60 wt .-% and in particular 25 to 55 wt .-%, based on the total weight the paste.
  • the addition of the lubricant additive is carried out as in the above-mentioned liquid to semi-solid lubricants.
  • the lubricant compositions according to the invention are generally in an amount of 0.5 to 30 wt .-%, preferably 2 to 25 wt .-% and in particular 5 to 20 wt .-%, with inorganic or organic binders (eg phenolic resins ) in an amount of 5 to 20 wt .-%, preferably 10 to 15 wt .-%, combined, both components based on the total weight of the lubricant.
  • the remainder to 100% by weight is aqueous or organic solvents or suspending agents such as benzines, ethyl acetate or aromatic compounds such as xylene.
  • the lubricant compositions according to the invention can also be used as a solid lubricant in conjunction with solids, for example in friction linings (brake and clutch linings), engineering plastics (eg self-lubricating plastics) etc.
  • the used amount of the lubricant compositions of the invention generally from 0.1 to 25 wt .-%, preferably 0.5 to 10 wt .-% and in particular 3 to 8 wt .-%, based on the total solids.

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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)
EP07103164A 2007-02-27 2007-02-27 Composition de lubrifiant Withdrawn EP1967574A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07103164A EP1967574A1 (fr) 2007-02-27 2007-02-27 Composition de lubrifiant
PCT/EP2008/001547 WO2008104384A2 (fr) 2007-02-27 2008-02-27 Composition de lubrifiant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07103164A EP1967574A1 (fr) 2007-02-27 2007-02-27 Composition de lubrifiant

Publications (1)

Publication Number Publication Date
EP1967574A1 true EP1967574A1 (fr) 2008-09-10

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EP07103164A Withdrawn EP1967574A1 (fr) 2007-02-27 2007-02-27 Composition de lubrifiant

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EP (1) EP1967574A1 (fr)
WO (1) WO2008104384A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005842A1 (de) * 2009-01-20 2010-07-29 Jakobi, Hans W. Mittel zur Verbesserung der Kraftstoffmotorenleistung
CN106459816A (zh) * 2015-03-31 2017-02-22 出光兴产株式会社 汽油发动机用润滑油组合物及其制造方法
CN107653024A (zh) * 2017-09-11 2018-02-02 东华大学 一种减摩耐磨润滑剂的制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7341335B2 (ja) * 2019-10-30 2023-09-08 ゲーカーエン ドライブライン インターナショナル ゲゼルシャフト ミト ベシュレンクテル ハフツング 硫化亜鉛と硫化銅に二硫化モリブデンおよび／または二硫化タングステンを組み合わせて含む等速ジョイント用グリース組成物、それの使用、及びそれを含む等速ジョイント
WO2022033700A1 (fr) 2020-08-14 2022-02-17 H.C. Carbon Gmbh Lubrifiant granulaire, son procédé de production et son utilisation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332172A1 (fr) * 1988-03-09 1989-09-13 Dai-Ichi Kogyo Seiyaku Co., Ltd. Agent dispersant pour systèmes non aqueux et dispersion non aqueuse le contenant
JPH0978078A (ja) * 1995-09-12 1997-03-25 Showa Shell Sekiyu Kk オープンギヤー用グリース組成物
EP1013749A2 (fr) * 1998-12-24 2000-06-28 Asahi Denka Kogyo Kabushiki Kaisha Compositions lubrifiantes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332172A1 (fr) * 1988-03-09 1989-09-13 Dai-Ichi Kogyo Seiyaku Co., Ltd. Agent dispersant pour systèmes non aqueux et dispersion non aqueuse le contenant
JPH0978078A (ja) * 1995-09-12 1997-03-25 Showa Shell Sekiyu Kk オープンギヤー用グリース組成物
EP1013749A2 (fr) * 1998-12-24 2000-06-28 Asahi Denka Kogyo Kabushiki Kaisha Compositions lubrifiantes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005842A1 (de) * 2009-01-20 2010-07-29 Jakobi, Hans W. Mittel zur Verbesserung der Kraftstoffmotorenleistung
CN106459816A (zh) * 2015-03-31 2017-02-22 出光兴产株式会社 汽油发动机用润滑油组合物及其制造方法
CN107653024A (zh) * 2017-09-11 2018-02-02 东华大学 一种减摩耐磨润滑剂的制备方法
CN107653024B (zh) * 2017-09-11 2020-05-26 东华大学 一种减摩耐磨润滑剂的制备方法

Also Published As

Publication number Publication date
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