WO1988008021A1 - Lubrifiant ou concentre de lubrifiant - Google Patents
Lubrifiant ou concentre de lubrifiant Download PDFInfo
- Publication number
- WO1988008021A1 WO1988008021A1 PCT/EP1988/000300 EP8800300W WO8808021A1 WO 1988008021 A1 WO1988008021 A1 WO 1988008021A1 EP 8800300 W EP8800300 W EP 8800300W WO 8808021 A1 WO8808021 A1 WO 8808021A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lubricant
- concentrate according
- mpa
- component
- weight
- Prior art date
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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
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/04—Fatty oil fractions
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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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
- C10M105/18—Ethers, e.g. epoxides
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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
- C10M105/36—Esters of polycarboxylic acids
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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
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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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- C10M129/00—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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- C10M129/76—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
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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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- C10M137/00—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
- 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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- C10M169/04—Mixtures of base-materials and additives
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
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- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
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- C10M2219/106—Thiadiazoles
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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, (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.
- suitable metal cations from chemical complexes dissolved in a lubricant were applied to rubbing surfaces during operation.
- 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 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.
- DE-AS 1 296 730 a lubricating oil is known 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.
- 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 of these known lubricating oil additives are sufficient
- Lubricating oil additive which is formed from a dithiophosphate of alkaline earth salts in combination with a complex reaction product of phosphorus sulfides, tall oil fatty acid alcohol esters, zinc chloride and barium hydroxide.
- 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.
- 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 of the requirements placed on 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 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, with regard to its
- Lubrication properties especially its friction and wear properties, is further improved, thus noticeably reducing the need for energy and spare parts and thus also meeting 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 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 ester 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 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 glassy smooth friction and
- lubricants or lubricant concentrates according to the invention Bacterial growth tests carried out with the lubricants or lubricant concentrates according to the invention are shown. 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 compatible. They are particularly well suited for use in homokinetic joints for vehicles, ie small joints with a high speed and a high load, and they come much closer to the "lifetime lubricant" considered to be the ideal lubricant than all previously known lubricants.
- 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. Under the expression "lubricant or lubricant concentrate based on mineral and / or
- Synthetic oil means both lubricating oils and lubricating greases based on mineral and / or synthetic oils.
- 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 compared to the known lubricants or
- Lubricant concentrates have significantly improved properties, 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 a very adhesive one
- 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 temperature stresses.
- 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 2.10 6 m.Pa.s at 20 ° C.
- the use of a mineral oil with a V isko is particularly preferred sity from 1.0 mPa.s at 20 ° C to 540 mPa.s at 50 ° C as
- an aromatic or aliphatic dicarboxylic acid ester in particular poly- ⁇ -olefin dicarboxylic acid ester, especially butyl ester, with a molecular weight in the range from 1000 to 3000, preferably diisodecyl phthalate, didecyl trimethyl adipate and dioctyl sebacate, a polyisobutylene with
- 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 didecylphenylphosphyl or didodecylphosphite or didodecylphosphite or didodecylphosphite or didodecyl
- the sulfur carrier is preferably present in the lubricant or lubricant concentrate in an amount of 0.5 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 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.
- the polyol compounds with at least one quaternary carbon atom in the molecule which are preferably used according to the invention include the following compounds:
- esters and ethoxylated esters of mono-, di- and tripentaerythritol The underlying mono- and dipentaerythritol has the structure:
- 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 m ⁇ nooctylester, pentaerythritol monononylester, pentaerythritol monodecylester, pentaerythritol monododecylester, pentaerythritol monomyristyl- esters, pentaerythritol monohexadecylester, pentaerythritol monostearyl ester, pentaerythritol monooley lester, pentaerythritol monoisostearyl- and - isopalmitic acid ester; the corresponding dihexyl, dioctyl, dinonyl, didecyl, didodecyl, dimyristyl, dihexadecyl, distearyl, dio
- R T or alkyl
- telomeric acids are compounds with relatively high molecular weights and Long-chain, star-branched 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 customary 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, as well
- organophosphorus compounds which can be used as phosphorus supports according to the invention 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, didecyl phenyl phosphite, triphenyl phosphite, dioctyl phenyl phosphite, dihexyl phenyl phosphite, diisodecyl phenyl phosphite, diisooctyl phenyl phosphite, didecyl o-methylphenyl phosphite.
- the metal dialkyldithiocarbamates which can be used according to the invention as sulfur carriers 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-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 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 hexakisdialkyldithio
- 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 listed above for the metal dialkyldithiocarbamates.
- 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.
- 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 oxyethyldithiophosphate.
- compositions once with and once without the lubricant concentrate according to the invention examined for their lubricating properties and the results obtained compared.
- the wear profile for 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.
- 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 '
- the profile depth was 0.80 ⁇ m (average value of two measurements). Without the lubricant additive according to the invention 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 with the following composition was produced:
- Lubricant entrainer 6% lubricant concentrate 28 according to the invention
- 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 20 to 150 mPa.s at 50 ° C. was produced with the following composition:
- the lubricant concentrate according to the invention was omitted in the comparison product.
- 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 experiments 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 for the comparison product the profile depth was 1.02 ⁇ m (average of two measurements), as the following two diagrams show:
- a grease was produced for the multi-purpose lubrication of highly loaded gears and constant velocity joints with 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 was 1.63 ⁇ m (average from three measurements), as the following diagrams F (according to the invention) and F '( Comparative product).
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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)
Abstract
Un lubrifiant ou concentré de lubrifiant à base d'huiles minérales et/ou de synthèse ayant une meilleure capacité de lubrification, en particulier une meilleure capacité de support de charges, de glissement et de protection contre la corrosion contient a) en tant qu'huile de base, une ou plusieurs huiles minérales et/ou de synthèse, b) au moins un alcool quadrivalent à octavalent avec au moins un atome de carbone quaternaire et au moins une liaison ester dans la molécule ayant une densité d20 d'au moins 0,900 et une enthalpie H d'au moins 350 kcal/kg, c) au moins un composé organo-métallique asymétrique, d) au moins un support de phosphore, e) au moins un support de soufre et f) d'autres additifs usuels.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019880701563A KR960014936B1 (ko) | 1987-04-10 | 1988-04-11 | 윤활제 및 윤활제 농축물 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3712133.2 | 1987-04-10 | ||
DE19873712133 DE3712133A1 (de) | 1987-04-10 | 1987-04-10 | Schmiermittel bzw. schmiermittelkonzentrat |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1988008021A1 true WO1988008021A1 (fr) | 1988-10-20 |
Family
ID=6325305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1988/000300 WO1988008021A1 (fr) | 1987-04-10 | 1988-04-11 | Lubrifiant ou concentre de lubrifiant |
Country Status (8)
Country | Link |
---|---|
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 (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0316610A1 (fr) * | 1987-10-22 | 1989-05-24 | Idemitsu Kosan Company Limited | Composition d'huile lubrifiante |
Families Citing this family (8)
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 |
GB2241707A (en) * | 1990-03-07 | 1991-09-11 | Exxon Research Engineering Co | Lubricating grease composition |
DE4128646A1 (de) * | 1991-08-29 | 1993-03-04 | Henkel Kgaa | Estermischungen von stark verzweigten carbonsaeuren |
DE4128647A1 (de) * | 1991-08-29 | 1993-03-11 | Henkel Kgaa | Verwendung von isopalmitinsaeureestern als schmiermittel fuer zweitaktmotoren |
FR2684108B1 (fr) * | 1991-11-27 | 1994-10-28 | Mobil Oil France | Nouvelle graisse destinee notamment a etre utilisee dans des joints homocinetiques. |
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 |
Citations (5)
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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1987
- 1987-04-10 DE DE19873712133 patent/DE3712133A1/de active Granted
-
1988
- 1988-04-08 CA CA000563732A patent/CA1340272C/fr not_active Expired - Fee Related
- 1988-04-11 WO PCT/EP1988/000300 patent/WO1988008021A1/fr unknown
- 1988-04-11 JP JP63503324A patent/JP2843584B2/ja not_active Expired - Fee Related
- 1988-04-11 KR KR1019880701563A patent/KR960014936B1/ko not_active IP Right Cessation
- 1988-04-11 DE DE3851355T patent/DE3851355D1/de not_active Expired - Lifetime
- 1988-04-11 ES ES88105725T patent/ES2064326T3/es not_active Expired - Lifetime
- 1988-04-11 AT AT88105725T patent/ATE111149T1/de not_active IP Right Cessation
- 1988-04-11 EP EP88105725A patent/EP0286139B1/fr not_active Expired - Lifetime
Patent Citations (5)
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 (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0316610A1 (fr) * | 1987-10-22 | 1989-05-24 | Idemitsu Kosan Company Limited | Composition d'huile lubrifiante |
Also Published As
Publication number | Publication date |
---|---|
EP0286139A1 (fr) | 1988-10-12 |
JPH01503543A (ja) | 1989-11-30 |
DE3712133C2 (fr) | 1993-07-15 |
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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