WO2019046252A1 - Transmission lubricant composition - Google Patents
Transmission lubricant composition Download PDFInfo
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- WO2019046252A1 WO2019046252A1 PCT/US2018/048272 US2018048272W WO2019046252A1 WO 2019046252 A1 WO2019046252 A1 WO 2019046252A1 US 2018048272 W US2018048272 W US 2018048272W WO 2019046252 A1 WO2019046252 A1 WO 2019046252A1
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- 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
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- 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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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
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- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/028—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
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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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- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
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- C10M2219/106—Thiadiazoles
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- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/043—Ammonium or amine salts thereof
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- C10M2223/045—Metal containing thio derivatives
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- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
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- C10N2010/12—Groups 6 or 16
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- C10N2020/011—Cloud point
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- C10N2030/02—Pour-point; Viscosity index
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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Definitions
- the present invention relates to improved lubricants for transmissions with improved performance with metal synchromesh components.
- the synchronizer is one of the more important components of any gearbox.
- a lubricant composition comprising a) a synthetic poly- alpha-olefin base fluid; b) an organomolybdenum friction modifier; c) an
- the lubricant composition may advantageously contain one or more of e) a copper corrosion inhibitor; f) an anti-foam agent; g) a solubilizing agent; h) polymeric viscosity index improver; and i) an oligomeric viscosity modifier.
- Synthetic poly-alpha-olefins include Group IV poly-alpha-olefins (PAOs), including either lower viscosity or high viscosity fluids. Included are known PAO materials which typically comprise relatively low molecular weight hydrogenated polymers or oligomers of alphaolefins which include but are not limited to C 2 to about C 32 alphaolefins, for example C 8 to about Ci6 alphaolefins, such as 1 -octene, 1 -decene, 1 -dodecene and the like.
- PAOs Group IV poly-alpha-olefins
- alphaolefins which include but are not limited to C 2 to about C 32 alphaolefins, for example C 8 to about Ci6 alphaolefins, such as 1 -octene, 1 -decene, 1 -dodecene and the like.
- poly-alpha-olefins examples include poly-1 -octene, poly-1 -decene and poly-1 -dodecene, as well as dimers of higher olefins in the range of C 14 to C 18 , which provide low viscosity base stocks.
- synthetic poly-alpha-olefins include trimers and tetramers of 1 -octene and/or 1 -decene.
- Low viscosity PAO fluids may be prepared via polymerization of an alphaolefin in the presence of a polymerization catalyst such as a Friedel-Crafts catalyst, including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as a Friedel-Crafts catalyst, including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- the synthetic base fluid is present from about 62 wt% (weight percent), about 63, about 64, about 65, about 66, about 67, about 68, about 69, about 70, about 71 , about 72, about 73, about 74, about 75 or about 76 wt% to about 77, about 78, about 79, about 80, about 81 , about 82, about 83, about 84, about 85, about 86, about 87 or about 88 wt%, based on the weight of the total composition.
- Organomolybdenum friction modifiers include organomolybdenum dithiocarbamates, organomolybdenum dithiophosphates, molybdenum carboxylate salts, molybdenum-amine complexes, molybdenum amine/alcohol/amide complexes, molybdenum cluster compounds and molybdenum disulfide.
- the organomolybdenum friction modifier is from about 0.2 wt% to about 1 .0 wt% or from about 0.3 wt% to about 0.7, about 0.8 or about 0.9 wt%; for example from about 0.40 wt%, about 0.41 , about 0.42, about 0.43, about 0.44, about 0.45, about 0.46, about 0.47, about 0.48, about 0.49, about 0.50 or about 0.51 wt% to about 0.52, about 0.53, about 0.54, about 0.55, about 0.56, about 0.57, about 0.58, about 0.59 or about 0.60 wt%, based on the total weight of the composition.
- the alkylphosphorothiolate is of formula
- R R 2 and R 3 are each independently hydrocarbyl or hydrogen, wherein at least one of R ⁇ R 2 and R 3 are hydrocarbyl and
- Xi , X 2 and X 3 are independently oxygen or sulfur; for example where each of X ⁇ X 2 and X 3 are oxygen or each are sulfur or where two of X ⁇ X 2 and X 3 are oxygen and the other is sulfur or where two of X ⁇ X 2 and X 3 are sulfur and the other oxygen.
- the hydrocarbylamine may be selected from the group consisting of alkylene diamines, for example N-hydrocarbyl trimethylene diamines, for example N-oleyl- trimethylene diamine, N-tallow-trimethylene diamine or N-coco-trimethylene diamine.
- the hydrocarbylamine is selected from the group consisting of primary hydrocarbylamines, for example C 4 -C 30 alkylamines or C 8 -C 20 alkylamines, for example n-hexylamine, n-octylamine, n-decylamine, n-dodecylamine, n-tetradecylamine, n- pentadecylamine, n-hexadecylamine or n-octadecylamine.
- primary hydrocarbylamines for example C 4 -C 30 alkylamines or C 8 -C 20 alkylamines, for example n-hexylamine, n-octylamine, n-decylamine, n-dodecylamine, n-tetradecylamine, n- pentadecylamine, n-hexadecylamine or n-oct
- the alkylphosphorothiolate/hydrocarbylamine anti-wear additive is from about 0.2 wt% to about 1 .0 wt% or from about 0.3 wt% to about 0.7, about 0.8 or about 0.9 wt%; for example from about 0.40 wt%, about 0.41 , about 0.42, about 0.43, about 0.44, about 0.45, about 0.46, about 0.47, about 0.48, about 0.49, about 0.50 or about 0.51 wt% to about 0.52, about 0.53, about 0.54, about 0.55, about 0.56, about 0.57, about 0.58, about 0.59 or about 0.60 wt%, based on the total weight of the composition.
- the wt/wt ratio of the alkylphosphorothiolate and hydrocarbylamine is for instance from about 1/9, about 1/8, about 1/7, about 1/6, about 1/5, about 1/4, about 1/3, about 1/2 or about 1/1 to about 2/1 , about 3/1 , about 4/1 , about 5/1 , about 6/1 , about 7/1 , about 8/1 or about 9/1 .
- the dihydrocarbyl dithiophosphate is of formula
- R 4 , R 5 and R 6 are each independently hydrocarbyl.
- dihydrocarbyl dithiophosphate is of formula
- R 5 and R 6 are independently C 3 -C 18 alkyl, C 5 -C 12 cycloalkyl, C 9 -C 10 bicycloalkylmethyl, C 9 - C 10 tricycloalkylmethyl, phenyl or C 7 -C 24 alkylphenyl, or R 5 and R 6 together bonded to the oxygen atoms are
- R 7 is hydrogen or methyl; for example where R 5 and R 6 are 2-methylpropyl and R 7 is methyl.
- the dihydrocarbyl dithiophosphate extreme pressure additive is from about 0.2 to about 1.2 wt% or from about 0.3 wt% to about 0.8, about 0.9, about 1 .0 or about 1 .1 wt%; for example from about 0.50 wt%, about 0.51 , about 0.52, about 0.53, about 0.54, about 0.55, about 0.56, about 0.57, about 0.58, about 0.59, about 0.60 or about 0.61 wt% to about 0.62, about 0.63, about 0.64, about 0.65, about 0.66, about 0.67, about 0.68, about 0.69 or about 0.70 wt%, based on the total weight of the composition.
- Anti-wear additives and extreme pressure additives are disclosed for instance in U.S. Pat. No. 8,404,624 and U.S. Pub. 2005/0090410.
- Copper corrosion inhibitors constitute another class of additives suitable for inclusion in the compositions of this invention.
- Such compounds include thiazoles, triazoles and thiadiazoles.
- examples of such compounds include benzotriazole, tolyltriazole, octyltriazole, decyltriazole, dodecyltriazole, 2-mercapto benzothiazole, 2,5-dimercapto-1 ,3,4-thiadiazole, 2-mercapto-5-hydrocarbylthio-1 ,3,4-thiadiazoles, 2-mercapto-5-hydrocarbyldithio-1 ,3,4- thiadiazoles, 2, 5-bis(hydrocarbylthio)-1 ,3,4-thiadiazoles, and 2,5-bis(hydrocarbyldithio)- 1 ,3,4-thiadiazoles.
- 1 ,3,4-thiadiazoles are available as articles of commerce and also combinations of triazoles such as tolyltriazole with a 1 ,3,4-thiadiazole such as a 2,5-bis(alkyldithio)-1 ,3,4-thiadiazole or 2-alkyldithio-5-mercapto-1 ,3,4-thiadiazole.
- Materials of these types commercially available include COBRATEC TT-100 and HITEC 4313.
- the 1 ,3,4-thiadiazoles are generally synthesized from hydrazine and carbon disulfide by known procedures. See, for example, U.S. Pat. Nos.
- a copper corrosion inhibitor may be present, in certain embodiments, from about
- Anti-foam agents include silicone oils, silicone resins, silicon glycols and the like.
- the anti-foam agent comprises a silicone oil.
- the anti-foam agent comprises hydrocarbons or a blend of silicone and hydrocarbons.
- the anti-foam agent includes trace amount of silicon components such as silicone oils, silicone resins, silicon glycols and the like.
- the silicone oil is not generally limited and may include any silicone oil known in the art that does not adversely affect the lubricating properties of the resulting lubricating oil composition. Suitable silicone oils may include any liquid polymerized siloxane comprising one or more organic groups (polyorganosiloxanes).
- silicone oils include, but are not limited to, polyalkylsiloxanes (e.g., polydimethylsiloxane - PDMS), polyarylsiloxanes, polyalkoxysiloxanes, polyaryloxysiloxanes, fluorinated polysiloxanes (e.g., trifluoropropylmethylsilicone), combinations thereof, etc.
- silicone oils suitable for use in the present invention may have a kinematic viscosity at 25 °C of at least 0.5 mm/s (cSt), for example from about 0.5 to about 1 ,000,000 mm 2 /s (cSt) or from about 10,000 to about 600,000 mm 2 /s (cSt).
- Silicone oil may be present in an anti-foam agent in an amount in the range of from about 0.01 to more than 99 wt%, in an amount in the range of from about 1 to about 10 wt%, in an amount of up to 1 wt%, based on the total weight of the anti- foam agent, or completely absent from the anti-foam agent. Further, the concentration of silicone oil present in the lubricating oil composition may be in a range of from 0.1 to 500 ppm, from 1 to 100 ppm, or from 1 to 50 ppm, by weight.
- anti-foam agents may further comprise a solvent, such as a paraffinic mineral oil, naphthenic mineral oil, petroleum naphtha, aromatics, toluene, xylene, benzene, hexane, heptane, octane, dodecane, kerosene, etc. and combinations thereof.
- a solvent such as a paraffinic mineral oil, naphthenic mineral oil, petroleum naphtha, aromatics, toluene, xylene, benzene, hexane, heptane, octane, dodecane, kerosene, etc. and combinations thereof.
- An anti-foam agent may be dispersed or dissolved in the solvent.
- An anti-foam agent may include a non- ionic surfactant.
- the anti-foam agent may have a density of about 0.7 kg/L to about 0.9 kg/L at 20 °C, a viscosity of less than about 30 mPas at 25 °C, and a kinematic viscosity of less than about 20 mm 2 /s at 40 °C.
- Exemplary anti-foam agents that may be used in the present invention include, without limitations, Foam Ban ® 130B and Synative ® AC AMH 2.
- the lubricant composition may include a solvent in which the anti-foam compound(s) can be dispersed or dissolved.
- an anti-foam agent is present from about 0.10 wt% to about 1 .20 wt% or from about 0.20 wt% to about 0.80, about 0.90, about 1 .00 or about 1.10 wt%; for example from about 0.50 wt%, about 0.51 , about 0.52, about 0.53, about 0.54, about 0.55, about 0.56, about 0.57 or about 0.58 to about 0.59, about 0.60 wt% to about 0.61 , about 0.62, about 0.63, about 0.64, about 0.65, about 0.66, about 0.67, about 0.68, about 0.69 or about 0.70 wt%, based on the total weight of the composition.
- an anti-foam agent is present from about 0.20 wt%, about 0.21 , about 0.22, about 0.23, about 0.24, about 0.25, about 0.26, about 0.27, about 0.28, about 0.29 or about 0.30 wt% to about 0.31 , about 0.32, about 0.33, about 0.34, about 0.35, about 0.36, about 0.37, about 0.38, about 0.39, about 0.40, about 0.41 , about 0.42, about 0.43, about 0.44, about 0.45, about 0.46, about 0.47, about 0.48 or about 0.49 wt%, based on the total weight of the composition.
- an anti-foam agent is present from about at up to 0.1 wt%, from about 0.01 wt% to about 0.1 wt%, or from about 0.02 wt% to about 0.06 wt%.
- compositions may advantageously comprise a solubilizing agent, for example an oil-soluble di-alkyl ester of a C 4 -C 14 or C 6 -C 10 ⁇ , ⁇ -di-carboxylic acid having a pour point of about -45 °C or lower, for example -55 °C or lower.
- a solubilizing agent for example an oil-soluble di-alkyl ester of a C 4 -C 14 or C 6 -C 10 ⁇ , ⁇ -di-carboxylic acid having a pour point of about -45 °C or lower, for example -55 °C or lower.
- diesters including C 8 -C 13 alkanol adipates, azelates, sebacates and mixtures thereof.
- Examples include tri-methylpropyl tricaprylate, di-isodecyl glutarate, di-isododecyl glutarate, di-isooctyl adipate, di-(2-ethylhexyl) adipate, di-isononyl adipate, di-isodecyl adipate, di-(tridecyl) adipate, di-propylheptyl adipate, di-propyladipate, di-(2-ethylhexyl) sebacate, di-isooctyl sebacate, di-octyl azelate, di-isooctyl azelate, di-(2-ethylhexyl) azelate, di-isooctyl dodecanediate and mixtures thereof.
- a solubilizing agent may be present for instance from about 1 .0 wt% to about 9.0 wt% or from about 2.0 wt% or about 3.0 wt% to about 7.0 or about 8.0 wt%; for example from about 4.0 wt%, about 4.1 , about 4.2, about 4.3, about 4.4, about 4.5, about 4.6, about 4.7, about 4.8, about 4.9 or about 5.0 wt% to about 5.1 , about 5.2, about 5.3, about 5.4, about 5.5, about 5.6, about 5.7, about 5.8, about 5.9 or about 6.0 wt%, based on the total weight of the composition.
- Polymeric viscosity index improvers include polyacrylates, polymethacrylates, vinylpyrrolidone/methacrylate copolymers, polyvinylpyrrolidones, polybutenes, olefin copolymers, styrene/acrylate copolymers and polyethers.
- Commercial polymeric viscosity index improvers include VISCOPLEX and ACRYLOID products.
- a polymeric viscosity index improver may be present for example from about 1.0 wt% to about 9.0 wt% or from about 2.0 wt% or about 3.0 wt% to about 7.0 or about 8.0 wt%; for example from about 4.0 wt%, about 4.1 , about 4.2, about 4.3, about 4.4, about 4.5, about 4.6, about 4.7, about 4.8, about 4.9 or about 5.0 wt% to about 5.1 , about 5.2, about 5.3, about 5.4, about 5.5, about 5.6, about 5.7, about 5.8, about 5.9 or about 6.0 wt%, based on the total weight of the composition.
- Oligomeric viscosity modifiers include olefin co-oligomers, for example ethylene co- alpha-olefin oligomers, for example ethylene-propylene co-oligomers.
- a commercially available co-oligomer is LUCANT HC 1 100.
- An oligomeric viscosity modifier may be present for instance from about 1.0 wt% to about 9.0 wt% or from about 2.0 wt% or about 3.0 wt% to about 7.0 or about 8.0 wt%; for example from about 4.0 wt%, about 4.1 , about 4.2, about 4.3, about 4.4, about 4.5, about 4.6, about 4.7, about 4.8, about 4.9 or about 5.0 wt% to about 5.1 , about 5.2, about 5.3, about 5.4, about 5.5, about 5.6, about 5.7, about 5.8, about 5.9 or about 6.0 wt%, based on the total weight of the composition.
- Hydrocarbyl is any hydrocarbon containing group, for example aryl, alkaryl, straight or branched chain alkyl or alkenyl, cycloalkyi or cycloalkylalkyi which may be interrupted by or substituted by one or more heteroatom-containing groups or aryl groups, for instance interrupted by one or more, for example 1 to 3, -0-, -NH- or -C(0)0- groups and/or substituted by one or more, for example 1 to 3, halogen, hydroxyl, carboxylic, amino, thiol, phosphonate or aryl groups.
- Aryl includes phenyl and substituted phenyl, for instance alkyl- substituted phenyl. Hydrocarbyl may contain for instance from 1 to 150 carbon atoms.
- Alkyl includes straight or branched 1 to 25 carbon atom chains, for example methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n-pentyl, isopentyl, 1 -methylpentyl, 1 ,3-dimethylbutyl, n-hexyl, 1 -methylhexyl, n-heptyl, isoheptyl, 1 ,1 ,3,3- tetramethylbutyl, 1 -methylheptyl, 3-methylheptyl, n-octyl, 2-ethylhexyl, 1 ,1 ,3-trimethylhexyl, 1 ,1 ,3,3-tetramethylpentyl, nonyl, decyl, undecyl, 1 -methylundecyl, dodec
- Cycloalkylalkyl is for example C 5 -C 12 Cycloalkyl-C 1 -C 4 alkyl, e.g. cyclopentylmethyl, 2- cyclopentylethyl, cyclohexylmethyl or 2-cyclohexylethyl.
- Bi- or tri-cycloalkyl means for example bi-cyclohexylmethyl and the like.
- Present composition may advantageously contain a further component selected from the group consisting of solvents, hindered phenolic antioxidants, aminic antioxidants, metal passivators, rust inhibitors, pour point depressants, dispersants, further anti-foam agents, demulsifiers, further friction modifiers, further anti-wear additives and mixtures thereof.
- a further component selected from the group consisting of solvents, hindered phenolic antioxidants, aminic antioxidants, metal passivators, rust inhibitors, pour point depressants, dispersants, further anti-foam agents, demulsifiers, further friction modifiers, further anti-wear additives and mixtures thereof.
- compositions may further include as further anti-wear additives, metal complex compounds of hydrocarbyl dithiophosphates of formula
- R and R' are independently selected from the group consisting of C 1 -C 20 alkyl, C 3 - C 20 alkenyl, C 5 -C 12 cycloalkyl, C 7 -C 13 aralkyl and C 6 -C 10 aryl
- M is a metal selected from the group consisting of Al, Pb, Sn, Mn, Co, Ni, Zn and Cu
- x is 2 or 3 and y is 1 or 2.
- a suitable dihydrocarbyl dithiophosphate is for instance zinc dialkyldithiophosphate.
- Solvents include paraffinic mineral oil, naphthenic mineral oil, petroleum naphtha, aromatics, toluene, xylene, benzene, hexane, heptane, octane, dodecane, kerosene, etc. and combinations thereof.
- Phenolic antioxidants that may be used include C 7 -C 9 branched alkyl esters of 3,5- bis(1 ,1 -dimethyl-ethyl)-4-hydroxy-benzenepropanoic acid, 2-t-butylphenol, 2-t-butyl-4- methylphenol, 2-t-butyl-5-methylphenol, 2,4-di-t-butylphenol, 2,4-dimethyl-6-t-butylphenol, 2 t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2,5-di-t-butylhydroquinone, 2,6-di-t- butyl-4-alkylphenols such as 2,6-di-t-butylphenol, 2,6-di-t-butyl-4-methylphenol and 2,6-di-t- butyl-4-ethylphenol, 2,6-di-t-butyl-4-alkoxyphenols such as 2,6-di
- Aminic antioxidants which may be conveniently used include alkylated
- diphenylamines phenyl-a-naphthylamines, phenyl-p-naphthylamines and alkylated a- naphthylamines.
- Exemplary aminic antioxidants include dialkyldiphenylamines, such as p,p'-dioctyl- diphenylamine, p,p'-di-a-methylbenzyl-diphenylamine, and N-p-butylphenyl-N-p'- octylphenylamine, monoalkyldiphenylamines, such as mono-t-butyldiphenylamine and mono-octyldiphenylamine, bis(dialkylphenyl)amines, such as di-(2,4-diethylphenyl)amine and di(2-ethyl-4-nonylphenyl)amine, alkylphenyl-1 -naphthylamines, such as octylphenyl-1 - naphthylamine and n-t-dodecylphenyl-1 -naphthylamine, 1 -naphthyl
- arylnaphthylamines such as phenyl-1 -naphthylamine, phenyl-2-naphthylamine, N- hexylphenyl-2-naphthylamine and N-octylphenyl-2-naphthylamine
- phenylenediamines such as N,N'-diisopropyl-p-phenylenediamine and N,N'-diphenyl-p-phenylenediamine
- phenothiazines such as phenothiazine and 3,7-dioctylphenothiazine.
- rust inhibitors include 1 ) organic acids, their esters, metal salts, amine salts and anhydrides, for example alkyl- and alkenylsuccinic acids and the partial esters thereof with alcohols, diols or hydroxycarboxylic acids, partial amides of alkyl- and alkenylsuccinic acids, 4-nonylphenoxyacetic acid, alkoxy- and alkoxyethoxycarboxylic acids, such as dodecyloxyacetic acid, dodecyloxy(ethoxy)acetic acid and the amine salts thereof, and also N-oleoylsarcosine, sorbitan monooleate, lead naphthenate, alkenylsuccinic anhydrides, for example dodecenylsuccinic anhydride, 2-(2-carboxyethyl)-1 -dodecyl-3- methylglycerine and its salts, for instance sodium and triethanolamine salts; 2) nitrogen
- cycloaliphatic amines and amine salts of organic and inorganic acids for example oil-soluble alkylammonium carboxylates, and also 1 -(N,N-bis(2-hydroxyethyl)amino)-3-(4- nonylphenoxy)propan-2-ol;
- heterocyclic compounds for example: substituted imidazolines and oxazolines, 2-heptadecenyl-1 -(2-hydroxyethyl)-imidazoline;
- phosphorus-containing compounds for example Amine salts of phosphoric acid partial esters or phosphonic acid partial esters, zinc dialkyldithiophosphates; 4) sulfur-containing compounds, for example: barium dinonylnaphthalene-sulfonates, calcium
- glycerine derivatives for example: glycerine monooleate, 1 -(alkylphenoxy)-3-(2-hydroxyethyl)glycerines, 1 -(alkylphenoxy)-3-(2,3- dihydroxypropyl)glycerines, 2-carboxyalkyl-1 ,3-dialkylglycerines.
- Pour point depressants include alkylated naphthalene derivatives.
- Dispersants/surfactants include polybutenylsuccinamides or -imides,
- polybutenylphosphonic acid derivatives and basic magnesium, calcium and barium sulfonates, phenolates and salicylates.
- anti-foam agents include alcohol ethoxy/propoxylates, fatty acid
- Demulsifiers include polyetherpolyols and dinonylnaphthalenesulfonates.
- Further friction modifiers include fatty acids and their derivatives (i.e. natural esters of fatty acids such as glycerol monooleate), amides, imides and amines (i.e. oleylamine, diisotridecylamine).
- Additional anti-wear additives include sulfur- and/or phosphorus- and/or halogen- containing compounds, such as sulfurized olefins and vegetable oils, tritolyl phosphate, tricresyl phosphate, chlorinated paraffins, alkyl and aryl di- and trisulfides, amine salts of mono- and dialkyl phosphates, amine salts of methylphosphonic acid,
- diethanolaminomethyltolyltriazole di-(2-ethylhexyl)-aminomethyltolyltriazole, derivatives of 2,5-dimercapto-1 ,3,4-thiadiazole, ethyl(bisisopropyloxyphosphinothioyl)thiopropionate, triphenyl thiophosphate (triphenyl phosphorothioate), tris(alkylphenyl) phosphorothioates and mixtures thereof (for example tris(isononylphenyl) phosphorothioate),
- diphenylmonononylphenyl phosphorothioate isobutylphenyl diphenyl phosphorothioate
- the dodecylamine salt of 3-hydroxy-1 ,3-thiaphosphetan 3-oxide trithiophosphoric acid 5,5,5-tris- isooctyl 2-acetate
- derivatives of 2-mercaptobenzothiazole such as 1 -N,N-bis(2- ethylhexyl)aminomethyl-2-mercapto-1 H-1 ,3-benzothiazole and ethoxycarbonyl 5- octyldithiocarbamate.
- a further component may be present up to about 21 wt%, up to about 15 wt%, up to about 10 wt%, up to about 5 wt%, up to about 1 wt%, from about 0.0 wt% to about 0.9 wt% or from about 0.1 wt% to about 21 wt%, based on the total weight of the composition; for example from about 1 wt%, about 2, about 3, about 4, about 5, about 6, about 7 or about 8 wt% to about 9, about 10, about 15, about 18, about 19, about 20 or about 21 wt%, based on the total weight of the composition.
- the further component may be present from about 0.1 wt% to about 1 .2 wt% or from about 0.2 wt%, about 0.3 wt%, about 0.4 wt%, or about 0.5 wt% to about 0.6 wt%, about 0.7 wt%, about 0.8 wt%, about 0.9 wt%, about 1 wt%, or about 1 .1 wt%.
- the present lubricant compositions may advantageously exhibit a kinematic viscosity of from about 9.0 mm 2 /s, about 9.5, about 10.0, about 10.5, about 1 1 .0 or about 1 1 .5 mm 2 /s to about 12.0 mm 2 /s, about 12.5, about 13.0, about 13.5, about 14.0, about 14.5 or about 15.0 mm 2 /s at ⁇ ⁇ , determined according to ASTM D445; for example from about 10.0 mm 2 /s to about 14.5 mm 2 /s , from about 1 1 .0 mm 2 /s to about 13.5 mm 2 /s or from about 1 1 .5 mm 2 /s to about 12.5 mm 2 /s at ⁇ ⁇ ⁇ , determined according to ASTM D445.
- the lubricant compositions may exhibit a kinematic viscosity of from about 7 to about 1 1 .5 mm 2 /s at 100 ⁇ ; or from about 8 to about 10.5 mm 2 /s at 100 °C or from about 9 to about 9.5 mm 2 /s at - ⁇ 00 °C, determined according to ASTM D445.
- the present lubricant compositions may advantageously exhibit a dynamic viscosity of from about 10,000 mPa*s, about 15,000, about 20,000, about 25,000, or about 30,000 mPa*s to about 35,000 mPa*s, about 40,000, about 45,000, about 50,000, about 55,000, about 60,000, about 65,000, about 70,000, or about 75,000 mPa*s at -40 °C, determined according to DIN51398.
- the present lubricant compositions may exhibit a density ranging from about 820 kg/m 3 , about 830, about 840, about 850 kg/m 3 to about 860 kg/m 3 , about 870, about 880, about 890, or about 900 kg/m 3 at 15 °C, determined according to ASTM D4052.
- the phosphorus content in the present lubricant compositions may range from about 500 ppm, about 600, about 700, about 800, or about 900 ppm to about 1000 ppm, about 1 100, about 1200, about 1300, about 1400, or about 1500 ppm, determined according to ASTM 5185.
- the sulfur content in the present lubricant compositions may range from about 5000 ppm, about 6000, about 7000, about 8000, about 9000, about 9500, about 9800 ppm to about 10000 ppm, about 10500, about 1 1000, about 11500, about 12000, about 12500, about 13000, about 14000, or about 15000 ppm, determined according to ASTM 5185.
- a synchronizer may comprise a surface selected from the group consisting of molybdenum, bronze, brass, iron, carbon and steel, for example sintered bronze.
- the total weight of the lubricant composition will be 100% and the components of the composition are adjusted to where the total composition is 100% by weight. Unless otherwise indicated, all parts and percentages are by weight.
- a vehicle is a passenger automobile, a truck, a sport utility vehicle, a construction vehicle, a van, a step van, a minivan, a jeep, a farm vehicle including a tractor, a military vehicle, a light duty truck, etc.
- the lubricant composition of Table 1 may be prepared by:
- dithiophosphate extreme pressure additive further component(s), alkylphosphorothiolate and hydrocarbylamine anti-wear additive combination, and the copper corrosion inhibitor and stirring for about 10 minutes to about 1 hour at about 35-55 °C;
- composition of Table 1 and the corresponding blending procedure are merely illustrative and should not be construed as limiting.
- the compatibility of the lubricant composition of Example 1 with a synchronizer surface made from molybdenum was evaluated by testing the occurrence of scuffing and coefficient of friction using the Standard Synchronizer Test rig ZF/ZFG SSP 180 at a high oil temperature of about 80 °C.
- a lubricant composition that is compatible with various synchronizer friction materials while at the same time passing all other requirements of the Daimler specification for heavy duty truck manual transmission per specification 235.16.
- the lubricant composition disclosed herein addresses this need by demonstrating good compatibility with various synchronizer friction materials (e.g., bronze and molybdenum) and passing all other requirements of the Daimler specification for heavy duty manual transmissions per specification 235.16.
- the articles "a” and “an” herein refer to one or to more than one (e.g. at least one) of the grammatical object. Any ranges cited herein are inclusive. The term "about” used throughout is used to describe and account for small fluctuations.
- numeric value may be modified by ⁇ 5%, ⁇ 4%, ⁇ 3%, ⁇ 2%, ⁇ 1 %, ⁇ 0.5%, ⁇ 0.4%, ⁇ 0.3%, ⁇ 0.2%, ⁇ 0.1 % or ⁇ 0.05%. All numeric values are modified by the term “about” whether or not explicitly indicated. Numeric values modified by the term “about” include the identified value; that is “about 5.0” includes 5.0. Measureable levels of atoms, elements or molecules may depend on the method of detection. In part, the term “about” is intended to provide for this.
Abstract
Description
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JP2020512378A JP7247171B2 (en) | 2017-08-29 | 2018-08-28 | Transmission lubricant composition |
MX2020002346A MX2020002346A (en) | 2017-08-29 | 2018-08-28 | Transmission lubricant composition. |
KR1020207008311A KR20200045519A (en) | 2017-08-29 | 2018-08-28 | Transmission lubricant composition |
CN201880056409.1A CN111356754A (en) | 2017-08-29 | 2018-08-28 | Transmission lubricant composition |
EP18852320.3A EP3676358A4 (en) | 2017-08-29 | 2018-08-28 | Transmission lubricant composition |
US16/640,910 US20200172826A1 (en) | 2017-08-29 | 2018-08-28 | Transmission Lubricant Composition |
BR112020002916-5A BR112020002916A2 (en) | 2017-08-29 | 2018-08-28 | lubricating composition, method of lubricating a surface in the synchronizer of a transmission, transmission, gearbox, and, vehicle. |
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WO2023190101A1 (en) * | 2022-03-29 | 2023-10-05 | Eneos株式会社 | Lubricating oil composition for internal combustion engines |
WO2023190100A1 (en) * | 2022-03-29 | 2023-10-05 | Eneos株式会社 | Lubricating oil composition for internal combustion engine |
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WO2023190101A1 (en) * | 2022-03-29 | 2023-10-05 | Eneos株式会社 | Lubricating oil composition for internal combustion engines |
WO2023190100A1 (en) * | 2022-03-29 | 2023-10-05 | Eneos株式会社 | Lubricating oil composition for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JP7247171B2 (en) | 2023-03-28 |
EP3676358A4 (en) | 2021-05-12 |
JP2020532619A (en) | 2020-11-12 |
MX2020002346A (en) | 2020-07-13 |
KR20200045519A (en) | 2020-05-04 |
CN111356754A (en) | 2020-06-30 |
BR112020002916A2 (en) | 2020-07-28 |
US20200172826A1 (en) | 2020-06-04 |
EP3676358A1 (en) | 2020-07-08 |
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