WO1988008022A1 - Lubricant or lubricant concentrate - Google Patents

Lubricant or lubricant concentrate Download PDF

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Publication number
WO1988008022A1
WO1988008022A1 PCT/EP1988/000301 EP8800301W WO8808022A1 WO 1988008022 A1 WO1988008022 A1 WO 1988008022A1 EP 8800301 W EP8800301 W EP 8800301W WO 8808022 A1 WO8808022 A1 WO 8808022A1
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WO
WIPO (PCT)
Prior art keywords
lubricant
concentrate according
mpa
component
weight
Prior art date
Application number
PCT/EP1988/000301
Other languages
German (de)
English (en)
French (fr)
Inventor
Erasmus Froeschmann
Original Assignee
Erasmus Froeschmann
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 Erasmus Froeschmann filed Critical Erasmus Froeschmann
Publication of WO1988008022A1 publication Critical patent/WO1988008022A1/de

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    • 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
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
    • 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
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02—Petroleum fractions
    • 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
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/04—Fatty oil fractions
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/02—Well-defined hydrocarbons
    • C10M105/06—Well-defined hydrocarbons aromatic
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/18—Ethers, e.g. epoxides
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/36—Esters of polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
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    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/38—Esters of polyhydroxy compounds
    • C—CHEMISTRY; METALLURGY
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    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
    • C10M107/08—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation containing butene
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    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/22—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/28—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
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    • 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
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    • 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
    • C10M129/16—Ethers
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
    • C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
    • C—CHEMISTRY; METALLURGY
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
    • C10M135/36—Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon with nitrogen or oxygen
    • C—CHEMISTRY; METALLURGY
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    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
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    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
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    • 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
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    • C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
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    • C10M2203/06—Well-defined aromatic compounds
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    • C10M2203/065—Well-defined aromatic compounds used as base material
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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    • C10M2219/106—Thiadiazoles
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    • C10M2219/108—Phenothiazine
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    • C10M2223/042—Metal salts thereof
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    • C10M2223/045—Metal containing thio derivatives
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    • C10M2223/049—Phosphite
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    • C10M2223/10—Phosphatides, e.g. lecithin, cephalin
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    • C10N2010/02—Groups 1 or 11
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    • C10N2010/00—Metal present as such or in compounds
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    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol-fuelled engines
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    • C10N2040/252—Diesel engines
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    • C10N2040/253—Small diesel engines
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    • C10N2040/255—Gasoline engines
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    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines
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    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • Lubricant or lubricant concentrate
  • the invention relates to a new lubricant or lubricant concentrate based on mineral oil and / or synthetic oil with improved lubricating properties, in particular improved load bearing, sliding and corrosion protection properties.
  • solid lubricants were developed which were introduced between the moving metal parts, such as graphite, MoS 2 , TiO 2 , Ca 3 (PO 4 ) 2 , Teflon and the like, which were introduced as lubricious cover layers, suspensions, pastes or greases were. Thereby the friction partners were better separated and their resilience increased. With centripetal movements of higher peripheral speed and at higher temperature, however, the solid lubricants and carrier media separate sooner or later due to their different specific densities. This limited the long-term lubrication. In a further step, it was possible to apply suitable metal cations to rubbing surfaces during operation from chemical complexes dissolved in a lubricant.
  • the anionic part of the organometallic compounds forms lubricating and adhesive reaction layers in situ on the freshly formed eutectoid friction surfaces.
  • DE-PS 941 678 discloses lubricating oils containing soluble conversion products of phosphorus pentasulfide with liquid or solid aliphatic hydrocarbons or terpene hydrocarbons.
  • a lubricating oil is known which contains metal-containing alkylphenol sulfide esters in combination with zinc sulfonates.
  • DE-AS 1 444 892 a lubricating oil is known which contains a salt of an aromatic zinc dithiophosphate and a zinc carboxylic acid salt in the presence of water. While the first two products are lubricating oil detergents, the latter product is intended to prevent corrosion of silver bearing surfaces.
  • a lubricating oil which contains a salt of a substituted succinic acid, optionally together with a salt of an alkylated or esterified phosphoric acid. It is an antioxidant with a detergent effect.
  • a combination of dithiophosphate and dithiophosphinate salts is known from DE-AS 1 271 878.
  • From DE-OS 15 94 555 cutting oils containing free sulfur, a dialkyldithiophosphate and a chlorinated hydrocarbon are known.
  • Lubricating oils containing zinc or antimondithiocarbamate are known from US Pat. No. 3,462,367.
  • Lubricating oils are known from US Pat. No. 2,758,087 which contain a sulfur-phosphorus compound which is obtained by reacting phosphorus pentasulfide with an olefin at a higher temperature and which contains zinc phthalate. All these known lubricating oil additives are sufficient
  • 2,734,864 which are formed from a dithiophosphate of the alkaline earth metal salts in combination with a complex reaction product of phosphorus sulfides, wool fat and alcohol esters.
  • the undefined product contains considerable amounts of barium and zinc.
  • Such a lubricating oil additive cannot be used in practice because of its unbearable odor, which also endangers the people who come into contact with it.
  • lubricants based on mineral oil or synthetic oil which, in addition to the mineral or synthetic oil, contain an ester of an epoxidized fatty acid having 10 to 18 carbon atoms with mono- or polyhydric alcohols, an alkyl -, Aralkyl- or aryldithiophosphate of zinc, lead, tin, tungsten, molybdenum, niobium or lanthanum and optionally contain a sulfur phosphorus compound.
  • lubricants based on mineral or synthetic oil or lubricant concentrates which in addition to a lead, tungsten, molybdenum and / or vanadium dithiophosphate esterified with alkyl, aryl or aralkyl groups, also contain at least one zinc dialkyldithiophosphate and a metal-free sulfur-phosphorus compound.
  • These last-mentioned lubricants which have found widespread use, no longer meet all the requirements of modern long-term and high-performance lubricants. Their coefficient of friction and abrasion are too high, their shelf life is inadequate, in long-term use there is too high a complaint in the area of lubrication technology.
  • the object of the invention was therefore to create a new lubricant or lubricant concentrate based on mineral or synthetic oil, which is further improved in terms of its lubricating properties, in particular its friction and wear properties, thus noticeably reducing the need for energy and spare parts and thus also the highest Meets requirements.
  • a mineral and / or synthetic oil contains at least one 4- to 8-valent alcohol with at least one quaternary carbon atom and at least one ether bond in the molecule with a density d 20 of at least 0.900 and an enthalpy H of at least 350 kcal / kg, at least one asymmetric organometallic compound, at least one phosphorus carrier and at least one sulfur carrier are added.
  • the invention relates to a new lubricant or lubricant concentrate based on mineral and / or synthetic oil, which is characterized in that it contains a) one or more mineral and / or synthetic oils as base oil, b) at least one 4- to 8-valent alcohol with at least one quaternary carbon atom and at least one ether bond in the molecule with a density d 20 of at least 0.900 and an enthalpy H of at least 350 kcal / kg, c) at least one asymmetric organometallic compound, d) at least one phosphorus carrier and e ) at least one sulfur carrier and f) other customary additives;
  • the lubricants or lubricant concentrates according to the invention have significantly improved properties compared to the known lubricants or lubricant concentrates, in particular with regard to friction and wear and thus a reduced need for energy and spare parts. It is believed that this is due to the fact that when they are used in the rubbing and sliding area, metallic glass surfaces are formed from a
  • lubricant or lubricant concentrate based on Minera] - and / or synthetic oil used here means both lubricating oils and lubricating greases based on mineral and / or synthetic oil.
  • Molecule is occupied by four carbon atoms.
  • Examples of such compounds are mono-, di- and trimeric pentaerythritheres, other polyol ethers, pentaerythritol ethoxyethers and telomeric acid phtaerythritheres and the corresponding ethoxylated ethers.
  • the lubricants or lubricant concentrates according to the invention have compared to the known lubricants or
  • Lubricant concentrates have significantly improved properties, as the examples below show.
  • the lubricant according to the invention produced glass-like smooth friction and sliding surfaces save drive energy and lower the coefficient of friction per se and by building a very adhesive
  • Boundary lubrication film that enables elastohydrodynamic lubrication even under point loads. As a result, the friction temperature of the lubricant and lubrication point is reduced, the oxidation resistance of both is extended and the metallic friction partners are subjected to less specific alternating loads and temperatures.
  • the lubricant or lubricant concentrate contains, as component (b), mono-, di- or tripsntaerythritol, the alcoholic hydroxyl group (s) of which is preferably an unbranched or branched alkyl, aralkyl or aryl group having 6 to 18 carbon atoms 6 to 12 carbon atoms, in particular 8 to 12 carbon atoms, is (are) etherified or ethoxy-etherified.
  • component (b) mono-, di- or tripsntaerythritol
  • component (b) contains as component (b) a mono-, di-, tri- or tetraether of pentaerythritol.
  • the lubricant or lubricant concentrate additionally contains a component with at least one free one
  • Lubricant according to the invention hzw.
  • Lubricant concentrate contains component (b) according to a further preferred embodiment of the invention in an amount of 0.1 to 40% by weight, preferably 0.1 to 20% by weight, in particular 1 to 12% by weight, - Specifically from 2 to 6 wt .-%, based on the weight of the mineral and / or synthetic oil.
  • the lubricant or lubricant concentrate according to the invention contains, as component (b), a fither and / or ethoxylated ether derivative of mono-, di- or tripentaerythritol and / or a telomeric acid pentaerythrity ether or an ethoxylated derivative thereof.
  • the lubricant or lubricant concentrate according to the invention preferably contains beet oil, natural oil and / or a synthetic oil with a viscosity in the range from 1.0 mPa.s at 20 ° C. to 2.10 6 mPa.s at 20 ° C.
  • the use of a mineral oil with a visco is particularly preferred sity from 1.0 mPa.s at 20 ° C to 540 mPa.s at 50 ° C as
  • the lubricant or lubricant concentrate according to the invention preferably contains a sulfur carrier, in particular a thiazole, at least one metal dialkyldithiocarbamate and / or a metal dialkyldithiophosphate and / or a phosphorus carrier, in particular an organophosphite, preferably a dialkylarylphosphite, especially didecylphenylphosphite or a didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphenyl / didodecylphen
  • the sulfur carrier is preferably contained in the lubricant or lubricant concentrate in an amount of 0.3 to 10% by weight, in particular 1 to 3% by weight, while the phosphorus carrier is preferably present in an amount of 0.1 to Contains 10% by weight, in particular from 0.1 to 5% by weight, especially from 0.5 to 2% by weight.
  • the lubricant or lubricant concentrate according to the invention can contain conventional antioxidants, metal deactivators, detergents, dispersants, antifoams and / or viscosity index improvers as further conventional additives. Further features and advantages of the invention result from the following description.
  • Compounds with at least one quaternary carbon atom in the molecule include the following compounds:
  • the underlying mono- and dipentaerythritol has the structure:
  • the hydroxyl groups are partially or completely etherified, the ether groups of which are preferably straight or branched alkyl, aralkyl or aryl groups having 6 to 18, preferably 8 to 12, carbon atoms.
  • Pentaerythrticianher examples include pentaerythritol monohexyläther, pentaerythritol monooctyläther, pentaerythritol monononyläther, pentaerythritol monodecyläther, pentaerythritol monododecyl, pentaerythritol monomyristyläther, pentaerythritol monohexadecyläther, Pentaerythritmonostearyläther, pentaerythritol monooleylather, Pentaerythritmonoisostearyl- and -isopalmitinklaher; the corresponding dihexyl, dioctyl, dinonyl, didecyl, didodecyl, dimyristyl, dihexadecyl, distearyl, dioleyl,
  • R T or alkyl
  • tel omic acids are compounds with relatively high molecular weights and long-chain ⁇ star-like branched structures that can be etherified in the usual way and whose ethers are valuable lubricants.
  • Mineral oils which can be used according to the invention are all the usual mineral oils, from isoparaffin oil with a viscosity of 1.0 mPa.s at 20 ° C to thin spindle oil with a viscosity of 12 mPa.s at 20 ° C to highly viscous bright stock and cylinder oil with a viscosity of 540 mPa .s at 50 ° C.
  • the organophosphorus compounds which can be used according to the invention as phosphor carriers are are compounds of the formula
  • R in each case denotes a straight-chain, branched or cyclic alkyl group having 6 to 12 carbon atoms or phenyl group substituted in the o- or p-position by a lower alkyl radical having 1 to 6 carbon atoms.
  • organophosphorus compounds of the above formula are monodecyl diphenyl phosphite, dide eylphenyl phosphite, triphenyl phosphite, dioctyl phenyl phosphite, dihexyl phenyl phosphite, diisodecyl phenyl phosphite, diisooctyl phenyl phosphite, didecyl o-methylphenyl phosphite and didecyl p-methylphenyl phosphite.
  • the metal dialkyldithiocarbamates which can be used according to the invention as a sulfur carrier are compounds of the formula
  • Me is a metal from the group copper, silver, zinc, cadmium, boron, titanium, zirconium, tin, lead, vanadium, tantalum, antimony, chromium, molybdenum, tungsten, manganese, cobalt and nickel, preferably boron, nickel, cobalt or Molybdenum means.
  • the metal dialkyldithiophosphates which can be used according to the invention both as a sulfur carrier and as a phosphorus carrier are compounds of the formula
  • Me for a metal from the group copper, silver, zinc, cadmium, boron, titanium, zirconium, tin, lead, vanadium, tantalum, antimony, chromium, molybdenum, tungsten, manganese, cobalt and nickel, preferably for zinc, nickel, Titanium, vanadium, molybdenum, tungsten and manganese.
  • the alkyl group in the above metal dialkyldithio Carbamates and metal dialkyldithiophosphates each preferably contain 4 to 8 carbon atoms, so that the metal salts mentioned are still soluble in the commercially available base oils.
  • particularly advantageous alkyl groups include the diene, i- and tert-butyl group, the n- and i-amyl group, the n- and i-hexyl group, the n- and i-reptyl group and the 2-ethylhexyl group.
  • the i-butyl group, the n- and i-amyl group and the 2-ethylhexyl group are very particularly preferred.
  • metal dialkyldithiocarbamates which can be used according to the invention with particular advantage are the following: copper dialkyldithiocarbamates and copper bisdialkyldithiocarbamates; Silver dialkyldithiocarbamates; Zinc and cadmium bisdialkyldithiocarbamates; Boron trisdialkyldithiocarbamates titanium, zirconium, tin and lead tetrakisdialkyldithiocarbamates as well as tin and lead bisdialkyldithiocarbamates; Antimony, vanadium and tantalum dialkyldithiocarbamates, tetrakis and pentakis dialkyldithiocarbamates, and the dialkyldithiocarbamates in which these metals are present in mixed oxidation states; Chromium, chromium tris, chromium tetrakis and chromium hexakisdialkyldithiocarbamates
  • Particularly preferred among these compounds are the boron trisdialkyldithiocarbamates, the nickeltrisdialkyldithiocarbamates and the molybdenum tetrakis and molybdenum oxytetrakisdialkyldithiocarbamates.
  • Metal dialkyldithiophosphates which can be used according to the invention with particular advantage are the dialkyldithiophosphates of the same metals in the same oxidation states as those above for the metal dialkyldi thiocarbamates have been listed.
  • Zinc bisdialkyldithiophosphates, nickel nickel and tris dialkyldithiophosphates, titanium and vanadium tetrakis dialkyldithiophosphates, molybdenum and tungsten tetrakis dialkyldithiophosphates and molybdenum and tungsten oxytetrakis dialkyldithiophosphates are particularly advantageous.
  • metal dialkyldithiophosphates used according to the invention are zinc bisdi-2-ethylhexyldithiophosphate, nickel nickel and trisdi-2-ethylhexyl dithiophosphate, titanium and vanadium tetrakisdi-2-ethylhexyldithiophosphate as well as molybdenum and tungsten tetrakis and molybdenumdiethoxydihyldiethoxysulfate.
  • the metal ball was moved back and forth at a frequency of 50 Hz over an amplitude of 1 mm for 60-180 min under load on the surface of the metal disc, the load being within a nasty range of 50 to 300 N and the tempera during the test ⁇ tur were varied within the range of 50 to 150 ° C (SRV - Vibrating Friction Wear Device from Optimol GmbH)
  • a profile depth on the ordinate of 1 cm corresponds to a real profile depth in the surface of the metal disc of 1 ⁇ m with the exception of diagram B 'of Example 2.
  • a profile depth of 1 cm corresponds to a real profile depth of 2.5 ⁇ m.
  • the diagrams were recorded under otherwise identical conditions (load on the ball 50 to 300 N, friction frequency 50 Hz, temperature 50 to 150 ° C, friction amplitude 1 mm, test duration 1 to 3 h).
  • the lubricant concentrate according to the invention was omitted in the comparison product.
  • Diagram A Diagram A '
  • a profile depth of 1.13 ⁇ m was obtained (mean value from two measurements). Without the lubricant additive according to the invention, the profile depth was obtained a profile depth of 1.68 (average of two measurements).
  • a medium-viscosity lubricating oil with a viscosity of 190 to 200 mPa.s at 50 ° C of the following composition was produced:
  • Lubricant drag substance 6% lubricant concentrate according to the invention 28%
  • the lubricant concentrate according to the invention was omitted from the comparison product.
  • Diagram B Diagram B '(according to the invention) (comparative product)
  • a lubricating oil with an average viscosity of 120 to 150 mPa.s at 50 ° C with the following composition was prepared
  • the tests were carried out for 1 hour at a temperature of 150 ° C. and a load of 200 N under identical conditions.
  • a high-performance gear oil SAE 85/90 was tested with the addition of 10% by weight of monopentaerythritol tetraester according to the invention or without this addition.
  • the comparative tests were carried out for 1 hour at a temperature of 90 ° C and under a load of 200 N under identical conditions.
  • the profile depth was 0.85 ⁇ m (average of two measurements), while in the comparison product the profile depth was 1.02 ⁇ m (average of two measurements), as the two following diagrams show:
  • a grease was produced for the multi-purpose lubrication of highly loaded gears and constant velocity joints of the following composition; Mineral oil 70%
  • Consistency generator based on lithium stearate 9% lubricant concentrate according to the invention 21%
  • the tests were carried out for 3 hours at a temperature of 50 ° C. and a load of 300 N under otherwise identical conditions.
  • the profile depth was 0.95 ⁇ m (average value from three measurements), while the profile depth when using the comparison product. 1.63 ⁇ m (average of three measurements) was, as the following diagrams F (according to the invention) and F '(comparative product) show.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Lubricants (AREA)
PCT/EP1988/000301 1987-04-10 1988-04-11 Lubricant or lubricant concentrate WO1988008022A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3712134.0 1987-04-10
DE19873712134 DE3712134A1 (de) 1987-04-10 1987-04-10 Schmiermittel bzw. schmiermittelkonzentrat

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WO1988008022A1 true WO1988008022A1 (en) 1988-10-20

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Country Status (7)

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EP (1) EP0286140B1 (enrdf_load_stackoverflow)
JP (1) JP3211959B2 (enrdf_load_stackoverflow)
AT (1) ATE111150T1 (enrdf_load_stackoverflow)
CA (1) CA1339121C (enrdf_load_stackoverflow)
DE (2) DE3712134A1 (enrdf_load_stackoverflow)
ES (1) ES2063742T3 (enrdf_load_stackoverflow)
WO (1) WO1988008022A1 (enrdf_load_stackoverflow)

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Publication number Priority date Publication date Assignee Title
JPH06200270A (ja) * 1992-12-29 1994-07-19 Tonen Corp 終減速機用潤滑油組成物
CA2179814A1 (en) * 1994-01-13 1995-07-20 John Phillips Doner Additives for lubricants
US5500107A (en) * 1994-03-15 1996-03-19 Betz Laboratories, Inc. High temperature corrosion inhibitor
TW340870B (en) * 1995-04-07 1998-09-21 Nippon Nogen Co Ltd Lubricating oil additive, lubricating oil and working fluid for refrigerators
WO1997008280A1 (fr) * 1995-08-30 1997-03-06 Tonen Corporation Composition d'huile lubrifiante
US5922654A (en) * 1995-10-23 1999-07-13 Nsk Ltd. Lubricant composition
RU2131452C1 (ru) * 1997-11-25 1999-06-10 Открытое акционерное общество "Северсталь" Концентрат для приготовления смазочно-охлаждающей жидкости для холодной обработки металлов давлением
GB9813071D0 (en) 1998-06-17 1998-08-19 Exxon Chemical Patents Inc Lubricant compositions
EP3476922B1 (en) 2016-06-23 2021-08-25 JXTG Nippon Oil & Energy Corporation Grease composition for constant velocity joints, and constant velocity joint in which same is sealed

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1543830A (fr) * 1966-11-10 1968-10-25 Mobil Oil Corp Compositions lubrifiantes contenant des additifs anti-corrosion perfectionnés
FR2194770A1 (enrdf_load_stackoverflow) * 1972-07-31 1974-03-01 Chevron Res
FR2540104A1 (fr) * 1983-02-01 1984-08-03 Elf France Synthese des ethers de polyols

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT381719B (de) * 1979-10-15 1986-11-25 Elf France Schmiermittel oder schmiermittelzusaetze
FR2467186A1 (fr) * 1979-10-15 1981-04-17 Elf France Alkylethers de polyols, leur preparation et leurs emplois
GB2065148A (en) * 1979-12-14 1981-06-24 Cooper & Co Ltd Edwin Lubricating composition
JPS5861189A (ja) * 1981-10-07 1983-04-12 Hitachi Ltd 塑性加工用潤滑剤組成物
JPS5975995A (ja) * 1982-10-25 1984-04-28 Showa Shell Sekiyu Kk 耐摩耗性、極圧性及び摩擦特性にすぐれた潤滑組成物

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1543830A (fr) * 1966-11-10 1968-10-25 Mobil Oil Corp Compositions lubrifiantes contenant des additifs anti-corrosion perfectionnés
FR2194770A1 (enrdf_load_stackoverflow) * 1972-07-31 1974-03-01 Chevron Res
FR2540104A1 (fr) * 1983-02-01 1984-08-03 Elf France Synthese des ethers de polyols

Also Published As

Publication number Publication date
DE3851356D1 (de) 1994-10-13
EP0286140A1 (de) 1988-10-12
ATE111150T1 (de) 1994-09-15
DE3712134C2 (enrdf_load_stackoverflow) 1993-07-15
EP0286140B1 (de) 1994-09-07
JP3211959B2 (ja) 2001-09-25
JPH01503545A (ja) 1989-11-30
CA1339121C (en) 1997-07-29
DE3712134A1 (de) 1988-10-27
ES2063742T3 (es) 1995-01-16

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