EP0286140A1 - Lubrifiant ou concentré de lubrifiant - Google Patents
Lubrifiant ou concentré de lubrifiant Download PDFInfo
- Publication number
- EP0286140A1 EP0286140A1 EP88105726A EP88105726A EP0286140A1 EP 0286140 A1 EP0286140 A1 EP 0286140A1 EP 88105726 A EP88105726 A EP 88105726A EP 88105726 A EP88105726 A EP 88105726A EP 0286140 A1 EP0286140 A1 EP 0286140A1
- Authority
- 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.)
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Classifications
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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
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- 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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- 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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- 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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- 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
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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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- C10M129/02—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
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- 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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- 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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- 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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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, and long-term use shows that 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, which is further improved with regard to its lubricating properties, in particular its friction and wear properties, thus noticeably reducing the energy and spare parts requirement 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 ether 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 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 bacterial growth 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 ether 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, roller 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 pentaerythrity ethers, other polyol ethers, pentaerythritol ethoxy ethers and telomeric acid pentaerythricity ethers and the corresponding ethoxylated ethers.
- 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) etherified or ethoxy-etherified.
- component (b) mono-, di- or tripentaerythritol
- 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 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 ether 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 20 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 didecyl ester and sebacic acid dioctyl 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.
- polyol ether 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 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, pentaerythritol monostearyläther, pentaerythritol monooleyläther, pentaerythritol monoisostearyl- and -isopalmitinklaher; the corresponding dihexyl, dioctyl, dinonyl, didecyl, didodecyl, dimyristyl, dihexadecyl, distearyl, dioley
- T telomer
- R T or alkyl
- telomeric 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.
- 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 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 tris 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 hexakisdialkyldithi
- 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.
- 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 with the following composition was used as the lubricant concentrate according to the invention in all experiments: 50% C10-C18 pentaerythrity ether with a 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.
- the profile depth was 1.13 ⁇ m (average of two measurements). Without the lubricant additive according to the invention, this resulted 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: 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 0.90 ⁇ m (average of two measurements), the profile depth was 13.98 ⁇ m when using the comparison 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 depth when using the lubricating oil according to the invention was 1.03 ⁇ m (average of two measurements).
- the profile depth when using the comparison product was 3.48 ⁇ m.
- 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 0.87 ⁇ m (average value from three measurements), while the profile depth was 1.57 ⁇ m when using the comparison product, 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.
Landscapes
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3712134 | 1987-04-10 | ||
DE19873712134 DE3712134A1 (de) | 1987-04-10 | 1987-04-10 | Schmiermittel bzw. schmiermittelkonzentrat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0286140A1 true EP0286140A1 (fr) | 1988-10-12 |
EP0286140B1 EP0286140B1 (fr) | 1994-09-07 |
Family
ID=6325306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88105726A Expired - Lifetime EP0286140B1 (fr) | 1987-04-10 | 1988-04-11 | Lubrifiant ou concentré de lubrifiant |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0286140B1 (fr) |
JP (1) | JP3211959B2 (fr) |
AT (1) | ATE111150T1 (fr) |
CA (1) | CA1339121C (fr) |
DE (2) | DE3712134A1 (fr) |
ES (1) | ES2063742T3 (fr) |
WO (1) | WO1988008022A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0672744A1 (fr) * | 1994-03-15 | 1995-09-20 | Betz Europe, Inc. | Inhibiteur de corrosion à haute température |
EP0677571A1 (fr) * | 1992-12-29 | 1995-10-18 | Tonen Corporation | Composition d'huile de lubrification de transmission aux roues motrices |
EP0736591A2 (fr) * | 1995-04-07 | 1996-10-09 | Japan Energy Corporation | Additif pour huile lubrifiante, huile lubrifiante et fluide de travail pour réfrigérateurs |
EP0739405A1 (fr) * | 1994-01-13 | 1996-10-30 | Mobil Oil Corporation | Additifs pour lubrifiants |
WO1999066011A2 (fr) * | 1998-06-17 | 1999-12-23 | Infineum Usa L.P. | Compositions pour huiles lubrifiantes |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0855437A4 (fr) * | 1995-08-30 | 1999-06-23 | Tonen Corp | Composition d'huile lubrifiante |
US5922654A (en) * | 1995-10-23 | 1999-07-13 | Nsk Ltd. | Lubricant composition |
WO2017222018A1 (fr) * | 2016-06-23 | 2017-12-28 | Jxtgエネルギー株式会社 | Composition de graisse pour joints homocinétiques, et joint homocinétique dans lequel ladite composition de graisse est scellée |
Citations (3)
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 | |
FR2540104A1 (fr) * | 1983-02-01 | 1984-08-03 | Elf France | Synthese des ethers de polyols |
Family Cites Families (5)
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 |
-
1987
- 1987-04-10 DE DE19873712134 patent/DE3712134A1/de active Granted
-
1988
- 1988-04-08 CA CA000563729A patent/CA1339121C/fr not_active Expired - Fee Related
- 1988-04-11 DE DE3851356T patent/DE3851356D1/de not_active Expired - Fee Related
- 1988-04-11 WO PCT/EP1988/000301 patent/WO1988008022A1/fr unknown
- 1988-04-11 AT AT88105726T patent/ATE111150T1/de not_active IP Right Cessation
- 1988-04-11 EP EP88105726A patent/EP0286140B1/fr not_active Expired - Lifetime
- 1988-04-11 ES ES88105726T patent/ES2063742T3/es not_active Expired - Lifetime
- 1988-04-11 JP JP50365188A patent/JP3211959B2/ja not_active Expired - Fee Related
Patent Citations (3)
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 | |
FR2540104A1 (fr) * | 1983-02-01 | 1984-08-03 | Elf France | Synthese des ethers de polyols |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0677571A1 (fr) * | 1992-12-29 | 1995-10-18 | Tonen Corporation | Composition d'huile de lubrification de transmission aux roues motrices |
EP0677571A4 (fr) * | 1992-12-29 | 1996-01-24 | Tonen Corp | Composition d'huile de lubrification de transmission aux roues motrices. |
EP0739405A1 (fr) * | 1994-01-13 | 1996-10-30 | Mobil Oil Corporation | Additifs pour lubrifiants |
EP0739405A4 (fr) * | 1994-01-13 | 1997-01-22 | Mobil Oil Corp | Additifs pour lubrifiants |
US5500107A (en) * | 1994-03-15 | 1996-03-19 | Betz Laboratories, Inc. | High temperature corrosion inhibitor |
EP0672744A1 (fr) * | 1994-03-15 | 1995-09-20 | Betz Europe, Inc. | Inhibiteur de corrosion à haute température |
US5611911A (en) * | 1994-03-15 | 1997-03-18 | Betzdearborn Inc. | High temperature corrosion inhibitor |
EP0736591A2 (fr) * | 1995-04-07 | 1996-10-09 | Japan Energy Corporation | Additif pour huile lubrifiante, huile lubrifiante et fluide de travail pour réfrigérateurs |
EP0736591A3 (fr) * | 1995-04-07 | 1997-04-02 | Japan Energy Corp | Additif pour huile lubrifiante, huile lubrifiante et fluide de travail pour réfrigérateurs |
CN1047194C (zh) * | 1995-04-07 | 1999-12-08 | 株式会社日本能源 | 电冰箱用润滑油 |
WO1999066011A2 (fr) * | 1998-06-17 | 1999-12-23 | Infineum Usa L.P. | Compositions pour huiles lubrifiantes |
US6211123B1 (en) | 1998-06-17 | 2001-04-03 | Infineum Usa L.P. | Lubricating oil compositions |
WO1999066011A3 (fr) * | 1998-06-17 | 2002-09-26 | Infineum Usa Lp | Compositions pour huiles lubrifiantes |
Also Published As
Publication number | Publication date |
---|---|
WO1988008022A1 (fr) | 1988-10-20 |
DE3851356D1 (de) | 1994-10-13 |
DE3712134A1 (de) | 1988-10-27 |
JPH01503545A (ja) | 1989-11-30 |
DE3712134C2 (fr) | 1993-07-15 |
JP3211959B2 (ja) | 2001-09-25 |
EP0286140B1 (fr) | 1994-09-07 |
CA1339121C (fr) | 1997-07-29 |
ATE111150T1 (de) | 1994-09-15 |
ES2063742T3 (es) | 1995-01-16 |
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