EP0286139A1 - Lubrifiant ou concentré de lubrifiant - Google Patents

Lubrifiant ou concentré de lubrifiant Download PDF

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Publication number
EP0286139A1
EP0286139A1 EP88105725A EP88105725A EP0286139A1 EP 0286139 A1 EP0286139 A1 EP 0286139A1 EP 88105725 A EP88105725 A EP 88105725A EP 88105725 A EP88105725 A EP 88105725A EP 0286139 A1 EP0286139 A1 EP 0286139A1
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EP
European Patent Office
Prior art keywords
lubricant
concentrate according
mpa
component
weight
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.)
Granted
Application number
EP88105725A
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German (de)
English (en)
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EP0286139B1 (fr
Inventor
Gesellschaft für Industrielle Instandhaltungs- und Wartungsprodukte mbH SIWA
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.)
SIWA GESELLSCHAFT FUER INDUSTRIELLE INSTANDHALTUNG
Original Assignee
Gesellschaft für Industrielle Instandhaltungs- und Wartungsprodukte mbH SIWA
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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
    • 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
    • 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
    • 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
    • C10M105/38—Esters of polyhydroxy 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
    • 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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    • C10M107/00—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
    • C10M107/22—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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    • C10M129/00—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
    • C10M129/68—Esters
    • C10M129/74—Esters of polyhydroxy compounds
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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
    • C10M129/68—Esters
    • C10M129/76—Esters containing free hydroxy or carboxyl groups
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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
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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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    • 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
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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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    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
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    • C10N2070/02—Concentrating of additives

Definitions

  • 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, MoS2, TiO2, Ca3 (PO4) 2, Teflon and the like, which were introduced as lubricious outer layers, suspensions, pastes or greases. Thereby the friction partners were better separated and their resilience increased. With centripetal movements of higher peripheral speeds and at higher temperatures, 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.
  • lubricating oils containing soluble reaction products of phosphorus pentasulfide with liquid or solid aliphatic hydrocarbons or terpene hydrocarbons are known.
  • DE-PS 923 984 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 dialkyl dithiophosphate 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.
  • Lubricating oil additives are also known from US Pat. No. 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 smell, 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, and the complaint rate in the lubrication technology area is too high.
  • 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 with regard to its lubricating properties, in particular its friction and wear properties, thus noticeably reducing the need for energy and spare parts and thus also meets the highest 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 ester bond in the molecule with a density d20 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 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 have 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 amorphously solidified metal melts, which no longer have metal crystal lattice structures.
  • the glass-like smooth friction and sliding surfaces which are presumably produced with the lubricant or lubricant concentrate according to the invention, significantly improve the entire lubrication process, since the coefficient of friction and with it the abrasion, oxidation and corrosion are significantly reduced.
  • the so-called fretting rust is also prevented by the lubricant or lubricant concentrate according to the invention.
  • the lubricants or lubricant concentrates according to the invention are extremely environmentally friendly since they contain no lead, no sulfurized whale sperm oil and hardly any phosphorus. This has been shown by fish tests and bacteria washing tests, which were carried out with the lubricants or lubricant concentrates according to the invention. It was also found that they are 60% biodegradable in normal soil within 3 to 4 months, so that they can also be described as extremely environmentally friendly.
  • the quaternary carbon atom-containing polyol ester compounds used according to the invention are thermally very stable and therefore allow high operating temperatures of up to 300 ° C. They therefore open up the possibility of lifetime lubrication of highly loaded motors, turbines, rolling bearings, constant velocity joints and other high-performance machine elements.
  • lubricant or lubricant concentrate based on mineral and / or synthetic oil used here means both lubricating oils and lubricating greases based on mineral and / or synthetic oil.
  • Compounds containing quaternary carbon atoms are to be understood here as those compounds in which the four main valences of at least one carbon atom per molecule are occupied by four carbon atoms.
  • Examples of such compounds are mono-, di- and trimeric pentaerythritol esters, other polyol esters, pentaerythritol ethoxy esters and telomeric acid pentaerythritol esters and the corresponding ethoxylated esters.
  • the lubricants or lubricant concentrates according to the invention have significantly improved properties compared to the known lubricants or lubricant concentrates, as the examples below show.
  • the glass-like smooth friction and sliding surfaces produced by the lubricant according to the invention save drive energy and lower the coefficient of friction per se and by building up a very adhesive boundary lubrication film which enables elastohydrodynamic lubrication even under point loads.
  • 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. Overall, these effects greatly reduce wear and significantly increase the service life of the friction partners and the lubricant.
  • the lubricant or lubricant concentrate contains, as component (b), mono-, di- or tripentaerythritol, 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) esterified or ethoxy-esterified.
  • component (b) mono-, di- or tripentaerythritol
  • component (b) contains as component (b) a mono-, di-, tri- or tetraester of pentaerythritol.
  • the lubricant or lubricant concentrate additionally contains a component with at least one free hydroxyl group.
  • the lubricant or lubricant concentrate according to the invention contains component (b) in an amount of 0.1 to 40% by weight, preferably 0.1 to 20% by weight, in particular 1 to 12 % By weight, especially from 2 to 6% by weight, based on the weight of the mineral and / or synthetic oil.
  • the lubricant or lubricant concentrate according to the invention contains as component (b) an ester and / or ethoxylated ester derivative of mono-, di- or tripentaerythritol and / or a telomeric acid pentaerythritol ester 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 2.106 mPa.s at 20 ° C.
  • a mineral oil with a visco is particularly preferred Sity of 1.0 mPa.s at 20 ° C to 540 mPa.s at 50 ° C as a natural oil and the use of an aromatic or aliphatic dicarboxylic acid ester, especially poly- ⁇ -olefin dicarboxylic acid ester, especially butyl ester, with a molecular weight in the range from 1000 to 3000, preferably from phthalic acid diisodecyl ester, trimethyladipic acid diidyl ester and sebacic acid diocyl ester, a polyisobutylene with a molecular weight of 1000 to 100,000 and a viscosity of 200 to 43,000 mPa.s at 100 ° C, a polymethacrylate with a viscosity of 1000 mPa.s 100 ° C, a non-water-soluble polyglycol with a viscosity of 5 to 60 mPa.s at 100
  • lubricant according to the invention and lubricant concentrate preferably contains a sulfur carrier, particularly a thiazole, at least one metal dialkyldithiocarbamate and / or a metal dialkyldithiophosphate and / or a phosphorus carrier, in particular an organo phosphite, preferably a Dialkylarylphosphit, particularly didecyl or Didodecylphenylphosphit, and / or a metal dialkyldithiophosphate .
  • a sulfur carrier particularly a thiazole
  • at least one metal dialkyldithiocarbamate and / or a metal dialkyldithiophosphate and / or a phosphorus carrier in particular an organo phosphite, preferably a Dialkylarylphosphit, particularly didecyl or Didodecylphenylphosphit, and / or a metal dialkyldithiophosphate
  • the sulfur carrier is preferably contained in the lubricant or lubricant concentrate in an amount of 0.5 to 10% by weight, in particular 1 to 3% by weight, while it is preferably in an amount of 0.1 to 10% in the phosphorus carrier % 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.
  • polyolester compounds with at least one quaternary carbon atom in the molecule which are preferably used according to the invention include the following compounds:
  • the underlying mono- and dipentaerythritol has the structure: in which the hydroxyl groups are partially or fully esterified, the ester groups of which are preferably straight or branched alkyl, aralkyl or aryl groups having 6 to 18, preferably 8 to 12, carbon atoms.
  • pentaerythritol ester examples include pentaerythritol monohexyl, pentaerythritol monooctyl, pentaerythritol monononylester, pentaerythritol monodecylester, pentaerythritol monododecylester, pentaerythritol monomyristylester, pentaerythritol monohexadecylester, Pentaerythritmonostearylester, pentaerythritol monooleylester, pentaerythritol monoisostearyl- and -isopalmitinklarester; the corresponding dihexyl, dioctyl, dinonyl, didecyl, didodecyl, dimyristyl, dihexadecyl, distearyl, dioleyl, diisostearyl
  • T telomer
  • R T or alkyl
  • telomeric acids are compounds with relatively high molecular weights and long-chain star-like structures which can be esterified in the usual way and whose esters are valuable lubricants (commercial product Kortacid T from Akzo Chemie).
  • 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.
  • Ucolub N9 with a viscosity of 5.7 mPa.s at 100 ° C.
  • Ucolub N36A with a viscosity of 18 mPa.s at 100 ° C
  • Ucolub N 120A with a viscosity of 55 MPa.s at 100 ° C (all non-water-soluble polyglycols) from Union Carbide
  • Isopar J from Esso (an isoparaffin oil) with a viscosity at 20 ° C of 1.0 mPa.s.
  • organophosphorus compounds which can be used as phosphorus supports according to the invention are compounds of the formula R - - R in which 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 cylphenyl 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 sulfur carriers are compounds of the formula wherein 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 wherein 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 n-, i- and tert-butyl group, the n- and i-amyl group, the n- and i-hexyl group, the n- and i-heptyl 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 trisdialkyldithiocarbamate; Titanium, zirconium, tin and lead tetrakisdialkyldithiocarbamates and 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 with particular advantage according to the invention 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 bis and tris dialkyl dithiophosphates, titanium and vanadium tetrakis dialkyl dithiophosphates, molybdenum and tungsten tetrakis dialkyl dithiophosphates and molybdenum and tungsten oxytetrakis dialkyl dithiophosphates are very particularly advantageous.
  • Particularly preferred representatives of the metal dialkyldithiocarbamates used according to the invention are: Bortrisdiisobutyldithiocarbamat, Bortrisdiamyldithiocarbamat, Bortrisdi-2-ethylhexyldithiocarbamat, Nickeltrisdiisobutyldithiocarbamat, Nickeltrisdiamyldithiocarbamat, Nickeltrisdi-2-ethylhexyldithiocarbamat, Molybdäntetrakisdi-2-ethylhexyldithiocarbamat, Molybdänoxytetrakisdi-2-ethylhexyldithiocarbamat and Kobaltbisdiisobutyldithiocarbamat.
  • metal dialkyldithiophosphates used according to the invention are zinc bisdi-2-ethylhexyldithiophosphate, nickel bis- and trisdi-2-ethylhexyldithiophosphate, titanium and vanadium tetrakisdi-2-ethylhexyldithiophosphate as well as molybdenum and tungsten tetrakis and molybdenum oxythi-tetrahydrofuran.
  • a circular disk made of stainless steel with a diameter of 23 mm and a thickness of 10 mm was used, on the surface of which a drop of the lubricating oil or grease to be examined was applied.
  • a ball made of the same stainless steel with a diameter of 10 mm was applied, which exerted pressure on the surface of the metal disc due to its load.
  • the wear profile transverse to the direction of oscillation of the ball, which was generated due to the friction between the loaded ball and the surface of the metal disk within the test period, was recorded by means of a suitable recording device, whereby the diagrams given below were obtained, in which the wear height as the difference between the highest was obtained on the ordinate and the lowest point of the surface profile of the metal disk as a function of the scanning distance of the surface of the metal disk is shown on the abscissa.
  • 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.
  • a product was used as the lubricant concentrate according to the invention with the following composition: 50% C10-C18 pentaerythritol ester with quaternary carbon atom 20% copolymer of ⁇ -olefin esters 9.5% trimethyl adipate 2.5% dialkylaryl phosphite 9% metal dialkyldithiophosphate / metal dialkyldithiocarbamate 7% thiazole derivative 2% sterically hindered phenol as an oxidation inhibitor
  • a highly viscous lubricating oil with a viscosity of 2200 mPa.s at 50 ° C of the following composition was produced and tested: Trimethyladipic acid didecyl ester 34% Polyisobutylene 43000mPa.s / 100 ° C 32% Lubricant drag substance 6% Lubricant concentrate according to the invention 28%
  • the lubricant concentrate according to the invention was omitted in the comparison product.
  • a medium-viscosity lubricating oil with a viscosity of 190 to 200 mPa.s at 50 ° C with the following composition was produced: polymeric ⁇ -olefin ester 12% Trimethyladipic acid didecyl ester 36% Polyisobutylene 4300 mPa.s / 100 ° C 18% Lubricant drag substance 6% Lubricant concentrate according to the invention 28%
  • the lubricant concentrate according to the invention was omitted from the comparison product.
  • the profile depth was 0.875 ⁇ m (average of two measurements) when using the lubricant according to the invention, the profile depth was 13.98 ⁇ m when using the comparative product.
  • a lubricating oil with an average viscosity of 120 to 150 mPa.s at 50 ° C was prepared with the following composition: highly viscous ⁇ -olefin ester copolymer 4% medium viscosity ⁇ -olefin ester polymer 12% Trimethyladipic acid didecyl ester 34% Polyisobutylene 200 mPa.s / 100 ° C 12% Lubricant drag substance 6% concentrate according to the invention 32%
  • the lubricant concentrate according to the invention was omitted in the comparison product.
  • the profile rigidity when using the lubricating oil according to the invention was 1.12 ⁇ m (average of three measurements).
  • the profile stiffness when using the comparison product was 3.48 microns.
  • a highly viscous adhesive and high-temperature lubricating oil with a viscosity of 15,000 mPa.s at 50 ° C with the following composition was produced: Trimethyladipic acid didecyl ester 29% Polyisobutylene 43000 mPa.s / 100 ° C 52% Lubricant concentrate according to the invention 19%
  • the tests were carried out for 1 hour at a temperature of 150 ° C. and a load of 200 N under identical conditions.
  • the profile depth was 0.80 ⁇ m (average value from three measurements), while the profile depth when using the comparison product was 1.57 ⁇ m, as the following diagrams D (according to the invention) and D ⁇ (comparison product) show.
  • 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 experiments were carried out for 1 hour at a temperature of 90 ° C. and under a load of 200 N under identical conditions.
  • a lubricating grease for the multi-purpose lubrication of highly loaded gears and constant velocity joints with the following composition was produced: Mineral oil 70% Consistency generator based on lithium stearate 9% Lubricant concentrate according to the invention 21%
  • the profile depth was 0.95 ⁇ m (average value from three measurements), while the profile depth when using the comparison product was 1.63 ⁇ m (average from three measurements), as the following diagrams F (according to the invention) and F ⁇ (comparison product) ) demonstrate.

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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)
EP88105725A 1987-04-10 1988-04-11 Lubrifiant ou concentré de lubrifiant Expired - Lifetime EP0286139B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3712133 1987-04-10
DE19873712133 DE3712133A1 (de) 1987-04-10 1987-04-10 Schmiermittel bzw. schmiermittelkonzentrat

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EP0286139A1 true EP0286139A1 (fr) 1988-10-12
EP0286139B1 EP0286139B1 (fr) 1994-09-07

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EP (1) EP0286139B1 (fr)
JP (1) JP2843584B2 (fr)
KR (1) KR960014936B1 (fr)
AT (1) ATE111149T1 (fr)
CA (1) CA1340272C (fr)
DE (2) DE3712133A1 (fr)
ES (1) ES2064326T3 (fr)
WO (1) WO1988008021A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013955A1 (fr) * 1990-03-07 1991-09-19 Exxon Research And Engineering Company Composition de graisse lubrifiante
EP0316610B1 (fr) * 1987-10-22 1992-07-08 Idemitsu Kosan Company Limited Composition d'huile lubrifiante
WO1993005130A1 (fr) * 1991-08-29 1993-03-18 Henkel Kommanditgesellschaft Auf Aktien Utilisation d'esters de l'acide isopalmitique comme lubrifiant pour moteurs a deux temps
FR2684108A1 (fr) * 1991-11-27 1993-05-28 Mobil Oil France Nouvelle graisse destinee notamment a etre utilisee dans des joints homocinetiques.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714260A1 (de) * 1987-04-29 1988-11-10 Spiess C F & Sohn Bor-tris-(dialkyl-dithiocarbamate) und verfahren zu ihrer herstellung
DE4128646A1 (de) * 1991-08-29 1993-03-04 Henkel Kgaa Estermischungen von stark verzweigten carbonsaeuren
JP4098513B2 (ja) * 2001-02-02 2008-06-11 新日本石油株式会社 潤滑油組成物
JP4801574B2 (ja) * 2006-12-11 2011-10-26 株式会社リコー 像担持体用保護剤、及び保護層形成装置、並びに画像形成方法、画像形成装置、及びプロセスカートリッジ
JP2008297501A (ja) * 2007-06-01 2008-12-11 New Japan Chem Co Ltd 軸受用潤滑油

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FR1543830A (fr) * 1966-11-10 1968-10-25 Mobil Oil Corp Compositions lubrifiantes contenant des additifs anti-corrosion perfectionnés
FR2194770A1 (fr) * 1972-07-31 1974-03-01 Chevron Res
GB2134538A (en) * 1983-01-20 1984-08-15 Idemitsu Kosan Co Lubricating oils
WO1986001529A1 (fr) * 1984-09-06 1986-03-13 Exxon Research And Engineering Company Compositions lubrifiantes pour formage a chaud
EP0208541A2 (fr) * 1985-07-08 1987-01-14 Nippon Oil Co. Ltd. Compositions lubrifiantes

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GB1301003A (en) * 1969-07-10 1972-12-29 Ethyl Corp Lubricant materials
JPS5328862B2 (fr) * 1972-04-18 1978-08-17
IT1010487B (it) * 1974-05-08 1977-01-10 Snam Progetti Esteri come componenti di lubrifi canti
US3896050A (en) * 1974-07-05 1975-07-22 Texaco Inc Lubricating oil additives
US4097388A (en) * 1976-10-12 1978-06-27 The United States Of America As Represented By The Secretary Of The Air Force Linear fluorinated polyether lubricant compositions containing perfluoroalkylether substituted phosphines
IT1188166B (it) * 1985-04-24 1988-01-07 Montefluos Spa Stabilizzanti a struttura arilfosfinica per olii e grassi perfluoropolieterei
JPS6210193A (ja) * 1985-07-08 1987-01-19 Nippon Oil Co Ltd トラクシヨンドライブ用流体組成物

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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 (fr) * 1972-07-31 1974-03-01 Chevron Res
GB2134538A (en) * 1983-01-20 1984-08-15 Idemitsu Kosan Co Lubricating oils
WO1986001529A1 (fr) * 1984-09-06 1986-03-13 Exxon Research And Engineering Company Compositions lubrifiantes pour formage a chaud
EP0208541A2 (fr) * 1985-07-08 1987-01-14 Nippon Oil Co. Ltd. Compositions lubrifiantes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316610B1 (fr) * 1987-10-22 1992-07-08 Idemitsu Kosan Company Limited Composition d'huile lubrifiante
WO1991013955A1 (fr) * 1990-03-07 1991-09-19 Exxon Research And Engineering Company Composition de graisse lubrifiante
WO1993005130A1 (fr) * 1991-08-29 1993-03-18 Henkel Kommanditgesellschaft Auf Aktien Utilisation d'esters de l'acide isopalmitique comme lubrifiant pour moteurs a deux temps
US5507964A (en) * 1991-08-29 1996-04-16 Henkel Kommanditgesellschaft Auf Aktien Use of isopalmitic acid esters as lubricants for two-stroke engines
FR2684108A1 (fr) * 1991-11-27 1993-05-28 Mobil Oil France Nouvelle graisse destinee notamment a etre utilisee dans des joints homocinetiques.
WO1993011208A1 (fr) * 1991-11-27 1993-06-10 Mobil Oil Française Nouvelle graisse destinee notamment a etre utilisee dans des joints homocinetiques

Also Published As

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JPH01503543A (ja) 1989-11-30
DE3712133C2 (fr) 1993-07-15
WO1988008021A1 (fr) 1988-10-20
DE3712133A1 (de) 1988-10-20
ES2064326T3 (es) 1995-02-01
CA1340272C (fr) 1998-12-15
EP0286139B1 (fr) 1994-09-07
DE3851355D1 (de) 1994-10-13
JP2843584B2 (ja) 1999-01-06
KR890701717A (ko) 1989-12-21
KR960014936B1 (ko) 1996-10-21
ATE111149T1 (de) 1994-09-15

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