EP0208541B1 - Compositions lubrifiantes - Google Patents

Compositions lubrifiantes Download PDF

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Publication number
EP0208541B1
EP0208541B1 EP86305275A EP86305275A EP0208541B1 EP 0208541 B1 EP0208541 B1 EP 0208541B1 EP 86305275 A EP86305275 A EP 86305275A EP 86305275 A EP86305275 A EP 86305275A EP 0208541 B1 EP0208541 B1 EP 0208541B1
Authority
EP
European Patent Office
Prior art keywords
sulfide
molybdenum
oxymolybdenum
acid monoester
carbon atoms
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.)
Expired - Lifetime
Application number
EP86305275A
Other languages
German (de)
English (en)
Other versions
EP0208541A2 (fr
EP0208541A3 (en
Inventor
Osamu Iizuka
Yuji Ikemoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Oil Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP14963185A external-priority patent/JPS6210194A/ja
Priority claimed from JP14963085A external-priority patent/JPS6210193A/ja
Application filed by Nippon Oil Corp filed Critical Nippon Oil Corp
Publication of EP0208541A2 publication Critical patent/EP0208541A2/fr
Publication of EP0208541A3 publication Critical patent/EP0208541A3/en
Application granted granted Critical
Publication of EP0208541B1 publication Critical patent/EP0208541B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/02—Well-defined hydrocarbons
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • C10M129/76—Esters containing free hydroxy or carboxyl groups
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C10M133/56—Amides; Imides
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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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    • 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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    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
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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
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
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    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/0206—Well-defined aliphatic compounds used as base material
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    • C10M2203/024—Well-defined aliphatic compounds unsaturated
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04—Well-defined cycloaliphatic compounds
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    • 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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    • C10M2205/02—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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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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    • C10M2207/287—Partial esters
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    • C10M2207/287—Partial esters
    • C10M2207/288—Partial esters containing free carboxyl groups
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    • C10M2207/289—Partial esters containing free hydroxy groups
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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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
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/086—Imides [having hydrocarbon substituents containing less than thirty carbon atoms]
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
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    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226—Morpholines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/26—Amines
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    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/28—Amides; Imides
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    • C10M2215/30—Heterocyclic compounds
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
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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
    • C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • This invention relates to fluid compositions suitable for use in traction drives.
  • Traction drive devices such as of ball-cone, cone-ring, wheel-disc, chain-sieve, toroidal and planetary roll types are designed to operate with power transmission that takes advantage of the rolling friction which develops as a result of a film of oil being hardened at the contacting surfaces.
  • lubricating oils for use in those traction drives should meet the following requirements.
  • EP-A-0135871 discloses the use of cyclohexyl-substituted alkylene derivatives as traction drive fluids. Similar substances are disclosed for this purpose by EP-A-0113045, with the addition of zinc dialkyldithiophosphates and other S-P compounds as antioxidants, together with rust preventers, viscosity improvers and antifoam agents. In DE-A-3127970 similar cyclohexyl alkylene base oils are proposed also in combination with zinc dithiophosphate together with other additives including alkenyl succinic acid imides or their boron derivatives.
  • fluid compositons of superior characteristics can be obtained for use in traction drives which incorporate a selected class of hydrocarbon compounds combined with certain dialkyldithio- zinc phosphates, alkenyl succinimides or their boron derivatives, and carboxylates of polyalcohols.
  • a lubricant composition for use in traction drives comprising: a base oil represented by the formula where R1, R2 and R3 are alkyl groups of 1 - 4 carbon atoms, R4 and R5 are methylene, ethylene or trimethylene groups which may be substituted at the hydrogen atoms with an alkyl group of 1 - 4 carbon atoms, a, b and c are integers of 0 - 2, and x is an integer of 0 or 1; [I] a zinc dialkyldithio phosphate in an amount of 0.1 - 5 wt.
  • a lubricant composition for use in traction drives comprising: a base oil represented by the formula where R1, R2 and R3 are alkyl groups of 1 - 4 carbon atoms, R4 and R5 are methylene, ethylene or trimethylene groups which may be substituted at the hydrogen atoms with an alkyl group of 1 - 4 carbon atoms, a, b and c are integers of 0 - 2, and x is an integer of 0 or 1; [I] a zinc dialkyldithio phosphate in an amount of 0.1 - 5 wt.
  • a lubricant composition for use in traction drives comprising: a base oil represented by the formula where R1, R2 and R3 are alkyl groups of 1 - 4 carbon atoms, R4 and R5 are methylene, ethylene or trimethylene groups which may be substituted at the hydrogen atoms with an alkyl group of 1 - 4 carbon atoms, a, b and c are integers of 0 - 2, and x is an integer of 0 or 1; [I] a zinc dialkyldithio phosphate in an amount of 0.1 - 5 wt.
  • a lubricant composition for use in traction drives comprising: a base oil represented by the formula where R1, R2 and R3 are alkyl groups of 1 - 4 carbon atoms, R4 and R5 are methylene, ethylene or trimethylene groups which may be substituted at the hydrogen atoms with an alkyl group of 1 - 4 carbon atoms, a, b and c are integers of 0 - 2, and x is an integer of 0 or 1; [I] a zinc dialkyldithio phosphate is an amount of 0.1 - 5 wt.
  • the polyolefin resulting from the homo- or co-polymerization of olefins of 2 - 8 carbon atoms and having an average molecular weight of 200 - 10,000; and [V] at least one of molybdenum dithiophosphates and molybdenum dithiocarbamates in an amount of 0.1 - 10 wt. %, each of the amounts being based on the total composition.
  • Base oils suitable for the purpose of the present invention are hydrocarbon compounds represented by the formula where R1, R2 and R3 are alkyl groups of 1 - 4 carbon atoms, R4 and R5 are methylene, ethylene or trimethylene groups which may be substituted at the hydrogen atoms with an alkyl group of 1 - 4 carbon atoms, a, b and c are integers of 0 - 2, and x is an integer of 0 or 1.
  • Eligible substituting groups for R1, R2 and R3 are methyl, ethyl, propyl and butyl, amongst which methyl and ethyl are particularly preferred.
  • Eligible R4 and R5 groups are methylene, methylmethylene (ethylidene), dimethylmethylene, ethylene, methylethylene, 1,1-dimethylethylene, 1,2-dimethylethylene, 1,1,2-trimethylethylene, tetramethylethylene, trimethylene, 1-methyltrimethylene, 2-methyltrimethylene, 1,1-dimethyltrimethylene, 1,2-dimethyltrimethylene, 1,3-dimethyltrimethylene, 2,2-dimethyltrimethylene, 1,1,2-trimethyltrimethylene, 1,1,3-trimethyltrimethylene, 1,2,2-trimethyltrimethylene, 1,2,3-trimethyltrimethylene, 1,1,2,2-tetramethyltrimethylene, 1,1,2,3-tetramethyltrimethylene, 1,1,3,3-tetramethyltrimethylene and 1,2,2,3-tetra
  • base oils include dicyclohexylmethane, 1,1-dicyclohexylethane, 1,2-dicyclohexylethane, 1,2-dicyclohexylpropane, 1,3-dicyclohexylpropane, 2,2-dicyclohexylpropane, 1,2-dicyclohexyl-2methylpropane, 1,3-dicyclohexylbutane, 1,3-dicyclohexyl-3-methylbutane, 1,3-dicyclohexyl-2,3-dimethylbutane, 2,3-dicyclohexyl-2,3-dimethylbutane, 2,4-dicyclohexylpentane, 2,4-dicyclohexyl-2-methylpentane, bis(cyclohexylmethyl)cyclohexane, bis(1-cyclohexylethyl)cyclohexane and bis(1-methyl-2-cyclohexyle
  • base oils are 1-cyclohexyl-1-methylcyclohexylethane, 1-cyclohexyl-1-ethylcyclohexylethane, 1-cyclohexyl-1-dimethylcyclohe xylethane, bis(1-cyclohexylethy)methylcyclohexane, bis(1-cyclohexylethyl)ethylcyclohexane, bis(1-cyclohexylethyl)dimethylcyclohexane and 2,4-dicyclohexyl-2-methylpentane, and combinations thereof.
  • Zinc dialkyldithio phosphates useful as component [I] hereunder are compounds represented by the formula where R6, R7, R8 and R9 are alkyl or alkylaryl groups having a carbon number of 3 - 22, preferably 3 - 15, and may be the same or different. Particularly preferred alkyl and alkylaryl groups are isopropyl, sec-butyl, isobutyl, n-amyl, isoamyl, 4-methylpentyl, 2-ethylhexyl, decyl, isodecyl, nonylphenyl and dodecylphenyl.
  • the amount of component [I] to be added should be in the range of 0.1 - 5 wt. %, preferably 0.5 - 3 wt. %, based on the total composition. Smaller amounts than 0.1 wt. % would fail to give sufficient wear resistance and oxidation stability. Greater amounts than 5 wt. % would result in reduced rolling fatigue life and traction coefficient.
  • Alkenyl succinimides and their boron derivatives are useful as component [II[ in the invention.
  • the alkenyl succinimides may be obtained by reaction of polyolefins with maleic anhydride and by subsequent conversion of the resulting intermediates into the form of imides by reaction with amines.
  • polystyrene examples include those resulting from the homo- and co-polymerization of olefins of 2 - 30 carbon atoms such as ethylene, propylene, butene, pentene, hexene, heptene, octene, nonene, decene and dodecene, and also from the co-polymerization of those olefins with aromatic olefins such as styrene.
  • the molecular weight of the polyolefins is between 300 and 5,000.
  • amines to be here used include monoamines such as methylamine, ethylamine, propylamine, butylamine, pentylamine, hexylamine, heptylamine and octylamine, polyamines such as ethylenediamine, propylenediamine, N,N'-dimethylpropylenediamine, trimethylenediamine, N,N-dihexyltrimethylenediamine, decamethylenediamine, di(trimethylene)triamine, di(heptamethylene)triamine, triethylenetetraamine, tripropylenetetraamine, tetraethylenepentaamine, pentaethylenehexaamine, imidazoline, methylimidazoline, bis(aminoethyl)imidazoline, pyrimidine, aminopropylpiperazine and bis(aminoethyl)piperazine, and hydroxy-substituted amines such as N-mono(hydroxy)
  • the borides or boron derivatives of the above alkenyl succinimides are obtainable by reaction of such succinimides with boron compounds selected for example from boron oxide, boron oxide hydrates, boron trifluoride, boron trichloride, boron tribromide, alkyl or aryl borons, boric acid, metaboric acid and tetraboric acid, esters of these boric acids with alcohols and phenols and ammonium salts thereof.
  • the boron derivatives may be synthesized by numerous methods disclosed for example in U. S. Patent Nos.
  • the amount of component [II] to be added should be in the range of 0.1 - 5 wt. %, preferably 0.5 - 3 wt. %, based on the total composition. Smaller amounts than 0.1 wt. % would invite insufficient oxidation stability. Greater amounts than 5 wt. % would result in reduced rolling fatigue life, traction coefficient and wear resistance.
  • Carboxylic acid partial esters of polyalcohols of 3 - 6 carbon atoms are useful as component [III] in the invention.
  • the polyalcohols include glycerine [C3H5(OH)3], pentaerythritol [C4H8(OH)4], sorbitol [C6H8(OH)6] and sorbitan [C6H8O(OH)4].
  • carboxylic acids are those having a carbon number of 8 - 22, preferably 12 - 18, and in cluding decanoic acid (capric acid), undecanoic acid, dodecanoic acid (lauric acid), tridecanoic acid, tetradecanoic acid (myristic acid), pentadecanoic acid, hexadecanoic acid (palmitic acid), heptadecanoic acid (margaric acid), octadecanoic acid (stearic acid), nonadecanoic acid, eicosanoic acid (arachidic acid), heneicosanoic acid, decosanoic acid (behenic acid), dodecenoic acid, tetradecenoic acid, hexadecenoic acid, octadecenoic acid (oleic acid), dodecadienoic acid, tetradecadienoic acid, hexadecadienoic acid and octt
  • component [III] include glycerine dodecanoic acid monoester (monoglyceride laurate), glycerine hexadecanoic acid monoester (monoglyceride palmitate), glycerine octadecanoic acid monoester (monoglyceride stearate), glycerine octadecenoic acid monoester (monoglyceride oleate), pentaerythritol dodecanoic acid monoester (pentaerythritol monolaurate), pentaerythritol hexadecanoic acid monoester (pentaerythritol monopalmitate), pentaerythritol octadecanoic acid monoester (pentaerythritol monostearate), pentaerythritol octadecanoic acid monoester (pentaerythrito
  • the amount of component [III] to be added should be in the range of 0.01 - 5 wt. %, preferably 0.1 - 3 wt. %, based on the total composition. Smaller amounts than 0.01 wt. % would be insufficient for rust-proofness. Greater amounts than 5 wt. % would induce reduced rolling fatigue life and traction coefficient.
  • a first embodiment of the invention provides lubircant compositions in which components [I] to [III] are combined with base oils.
  • selected polyolefins are further incorporated to build dynamic viscosity and shear stability.
  • Polyolefins eligible as component [IV] hereunder are those having an average molecular weight of 200 -10,000, preferably 1,000 - 4,000, and obtained by the homo- and co-polymerization of olefins selected for example from ethylene, propylene, 1-butene and isobutylene with use of a Friedel-Crafts catalyst such as aluminum chloride, magnesium chloride, boron fluoride or titanium tetrachloride, or a complex compound thereof, if necessary in combination with a co-catalyst such as an organic halide or hydrochloric acid.
  • a Friedel-Crafts catalyst such as aluminum chloride, magnesium chloride, boron fluoride or titanium tetrachloride, or a complex compound thereof, if necessary in combination with a co-catalyst such as an organic halide or hydrochloric acid.
  • the amount of component [IV] to be added should be in the range of 0.1 - 20 wt. %, preferably 1 - 10 wt. %, based on the total composition. Smaller amounts than 0.1 wt. % would be ineffective for viscosity buildup. Greater amounts than 20 wt. % would lead to reduced traction coefficient.
  • Third and fourth embodiments of the invention are intended to make the resulting compositions more highly resistant to wear and longer in rolling fatigue life by further addition of selected molybdenum compounds.
  • Eligible R10 to R13 groups are methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl, docosyl, tetracosyl, cyclopentyl, cyclohexyl, methylcyclohexyl, ethylcyclohexyl, dimethylcyclohexyl, cycloheptyl, phenyl, tolyl, xylyl, ethylphenyl, propylphenyl, butylphenyl, pentylphenyl, hexylphenyl, heptylphenyl, octylphenyl, nonylphenyl, decylphenyl, dode
  • component [V] include molybdenum diethyldithiophosphate sulfide, molybdenum dipropyldithiophosphate sulfide, molybdenum dipropyldithiophosphate sulfide, molybdenum dibutyldithiophosphate sulfide, molybdenum dipentyldithiophosphate sulfide, molybdenum dihexyldithiophosphate sulfide, molybdenum dioctyldithiophosphate sulfide, molybdenum didecyldithiophosphate sulfide, molybdenum didecyldithiophosphate sulfide, molybdenum didecyldithiophosphate sulfide, molybdenum di(butylphenyl)dithiophosphate sulfide, molybdenum(n
  • the amount of component [V] to be added should be in the range of 0.1 - 10 wt. %, preferably 0.3 - 5 wt. %, based on the total composition. Smaller amounts than 0.1 wt. % would fail to produce sufficient wear resistance and rolling fatigue life. Greater amounts than 10 wt. % would result in reduced traction coefficient and rolling fatigue life.
  • additives such as metallic cleaning agents including alkali metal sulfonates and alkaline earth metal sulfonates, anticorrosive agents, extreme pressure agents, viscosity index improvers, rust preventives and the like.
  • JIS K 2514 (Testing Method for Oxidation Stability of Lubricants for Internal Combustion Engine Oils) was followed with temperature 165.5°C and time 72 hours. Viscosity ratio at 40°C was determined.
  • Test was made in accordance with ASTM D 2603 (Standard Test Method for Sonic Shear Stability of Polymer-Containing Oils) with sonic radiation 10 KH2, temperature 40°C and time 30 minutes. Viscosity reduction at 40°C was determined.
  • ASTM D 2266 was followed with speed 1,500 ppm, load 40 kgf and time 2 hours, using four balls. Wear scar diameter was measured.
  • IP 305 (Testing Method for Uni-Steel Rolling Fatigue) was followed. Length of time required for L10:90 % life was measured.
  • compositions representing Inventive Examples 1 - 8 are highly satisfactory in respect of all the performance characteristics tested.
  • the controls of Comparative Examples 1 - 2 were inadequate in wear resistance, fatigue life, shear stability and rust-proofness.

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Claims (12)

  1. Composition lubrifiante pour un usage dans les commandes de traction comprenant:

    une huile de base représentée par la formule:
    Figure imgb0016
     où R₁, R₂ et R₃ sont des groupements alkyles de 1 - 4 atomes de carbone, R₄ et R₅ sont des groupements méthylène, éthylène ou triméthylène qui peuvent être substitués aux positions des atomes de carbone par un groupement alkyle de 1 - 4 atomes de carbone a, b et c sont des nombres entiers de 0 - 2, et x est 0 ou 1; [I] un dialkyldithio phosphate de zinc en quantité de 0.1 - 5 % en poids; [II] un alcényl succinimide ou un de ses dérivés de bore en quantité de 0.1 - 5 % en poids et [III] un ester partiel d'acide carboxylique et d'un alcool polyvalent de 3 - 6 atomes de carbone en quantité de 0.01 - 5 % en poids, chacune desdites quantités étant basée sur la composition totale.
  2. Composition lubrifiante suivant la revendication 1, dans laquelle ladite huile de base est choisie dans le groupe constitué des dicyclohexylméthane 1,1-dicyclohexyléthane, 1,2-dicyclohexyléthane, 1,2-dicyclohexylpropane, 1,3-dicyclohexylpropane, 2,2-dicyclohexylpropane, 1,2-dicyclohexyl-2-méthylpropane, 1,3-dicyclohexylbutane, 1,3-dicyclohexyl-3-méthylbutane, 1,3-dicyclohexyl-2,3-diméthylbutane, 2,3-dicyclohexyl-2,3-diméthylbutane, 2,4-dicyclohexyl-pentane, 2,4-dicyclohexyl-2-méthylpentane, bis(cyclohexylméthyl)cyclohexane, bis(1-cyclohexyléthyl)cyclohexane et bis(1-méthyl-2-cyclohexyléthyl)cyclohexane, leurs composés de substitution dans lesquels un ou deux groupements méthyle ou éthyle sont liés aux atomes de carbone du noyau cyclohexyle et leurs associations.
  3. Compositions lubrifiantes suivant la revendication 1, dans lesquelles ledit composant [I] est un composé représenté par la formule:
    Figure imgb0017
     où R₆, R₇, R₈ et R₉ sont des groupements alkyles ou alkylaryles de 3 - 22 atomes de carbone qui peuvent être identiques ou différents.
  4. Composition lubrifiante suivant la revendication 1, dans laquelle ledit composant [II] est un alcényl succinimide résultant de la réaction d'une polyoléfine de 2 - 30 atomes de carbone avec de l'anhydride maléïque suivie de la conversion du produit de réaction résultant en une forme imide par réaction avec une amine.
  5. Composition lubrifiante suivant la revendication 4, dans laquelle ladite polyoléfine est choisie dans le groupe constitué des homopolymères et copolymères de éthylène, propylène, butène, pentène, hexène, heptène, octène, nonène, decène et dodecène, et leurs copolymères avec le styrène, et ladite amine est choisie dans le groupe constitué des méthylamine, éthylamine, propylamine, butylamine, pentylamine, hexylamine, heptylamine, octylamine, éthylènediamine propylènediamine, N,N'-diméthylpropylènediamine, triméthylènediamine, N,N'-dihexyltriméthylènediamine, décaméthylènediamine, di(triméthylène)triamine, di(heptaméthylène)triamine, triéthylènetetraamine, tripropylènetétraamine, tetraéthylènepentaamine, pentaéthylènehexaamine, imidazoline, méthylimidazoline, bis(aminoéthyl)imidazoline, pyrimidine, aminopropylpipérazine, bis(aminoéthyl)-pipérazine, N-mono(hydroxyléthyl)éthylènediamine, N,N'-bis(hydroxyléthyl)éthylènediamine, N-mono(hydroxylpropyl)diéthylènetriamine et N,N'-bis(hydroxylpropyl)-tétraéthylènepentaamine.
  6. Composition lubrifiante suivant la revendication 4, dans laquelle ledit composant [II] est un composé produit par la réaction dudit alcényl succinimide avec un composé de bore choisi dans le groupe constitué des oxydes de bore, hydrates d'oxyde de bore trifluorure de bore, trichlorure de bore, tribromure de bore, alkylbore, arylbore, acide borique, acides métaborique et tétraborique et les esters desdits acides boriques avec des alcools et des phénols et leurs sels d'ammonium.
  7. Composition lubrifiante suivant la revendication 1, dans laquelle ledit composant [III] est choisi dans le groupe constitué des monoesters de la glycérine et de l'acide dodécanoïque, monoester de la glycérine et de l'acide hexadécanoïque, monoester de la glycérine et de l'acide octadécanoïque, monoester de la glycérine et de l'acide octodécénoïque, monoester du pentaérythritol et de l'acide dodécanoïque, monoester du pentaérythritol et de l'acide hexadécanoïque, monoester du pentaérythritol et de l'acide octadécanoïque , monoester du pentaérythritol et de l'acide octadécénoïque, monoester du sorbitol et de l'acide dodécanoïque, monoester du sorbitol et de l'acide hexadécanoïque, monoester du sorbitol et de l'acide octadécanoïque, monoester du sorbitol et de l'acide octadécénoïque, monoester du sorbitan et de l'acide dodécanoïque, monoester du sorbitan et de l'acide hexadécanoïque, monoester du sorbitan et de l'acide octadécanoïque, monoester du sorbitan et de l'acide octadécénoïque, triester du sorbitan et de l'acide octadécanoïque, triester du sorbitan et de l'acide octadécénoïque et leurs associations.
  8. Composition lubrifiante suivant l'une quelconque des revendications 1 - 7 comprenant entre outre:

    [IV] une polyoléfine en quantité de 0,1 - 20 % en poids, ladite polyoléfine résultant de l'homo- ou co-polymérisation d'oléfines de 2 - 8 atomes de carbone et ayant un poids moléculaire moyen de 200 - 10.000, chacune desdites quantités étant basée sur la composition totale.
  9. Composition lubrifiante suivant la revendication 8, dans laquelle ledit composant [IV] et choisi dans le groupe constitué des polybutène, polyisobutylène, copolymère éthylènepropylène, copolymère éthylène-1-butène et copolymère éthylène-propylène-1-butène.
  10. Composition lubrifiante suivant l'une quelconque des revendications 1 - 9 comprenant en outre:

    [V] au moins un des dithiophosphates de molybdène et dithiocarbamates de molybdène en quantité de 0,1 - 10 % en poids, chacune de ces quantités étant basée sur la composition totale.
  11. Composition lubrifiante suivant la revendication 10, dans laquelle ledit composant [V] est un dithiophosphate de molybdène représenté par la formule:
    Figure imgb0018
     où R₁₀ et R₁₁ sont des groupements alkyles, cycloalkyles, alkylcycloalkyles, aryles, alkylaryles ou arylalkyles de 1 - 24 atomes de carbone, d est 0 < d ≦ 4, et e est 0 ≦ e < 4 dans lesquels d + e = 4 et/ou un dithiocarbamate de molybdène représenté par la formule:
    Figure imgb0019
     où R₁₂ et R₁₃ sont tels que définies plus haut, f est 0 < f ≦ 4, et g est 0 ≦ g < 4 où f + g = 4.
  12. Composition lubrifiante suivant la revendication 11, dans laquelle ledit composant [V] est choisi dans le groupe constitué des sulfure de diéthyldithiophosphate de molybdène, sulfure de dipropyldithiophosphate de molybdène, sulfure de dipropyldithiophosphate de molybdène, sulfure de dibutyl-dithiophosphate de molybdène, sulfure de dipentyldithiophosphate de molybdène, sulfure de dihexyldithiophosphate de molybdène, sulfure de dioctyldithiophosphate de molybdène, sulfure de didécyldithiophosphate de molybdène, sulfure de didodécyldithiophosphate de molybdène, sulfure de di(butylphényl)dithiophosphate de molybdène, sulfure de (nonylphényl)-dithiophosphate de molybdène, sulfure de diéthyldithiophosphate d'oxymolybdène, sulfure de dipropyldithiophosphate d'oxymolybdène, sulfure de dibutyldithiophosphate d'oxymolybdène, sulfure de dipentyldithiophosphate d'oxymolybdène, sulfure de dihexyldithiophosphate d'oxymolybdène, sulfure de dioctyldithiophosphate d'oxymolybdène, sulfure de didécyldithiophosphate d'oxymolybdène, sulfure de didodécyldithiophosphate d'oxymolybdène, sulfure de di(butylphényl)dithiophosphate d'oxymolybdène, sulfure de di(nonylphényl)dithiophosphate d'oxymolybdène, sulfure de diéthyldithiocarbamate de molybdène, sulfure de dipropyldithiocarbamate de molybdène, sulfure de dibutyldithiocarbamate de molybdène, sulfure de dihexyldithiocarbamate de molybdène, sulfure de dioctyldithiocarbamate de molybdène, sulfure de didécyldithiocarbamate de molybdène, sulfure de didodécyldithiocarbamate de molybdène, sulfure de di(butylphényl)dithiocarbamate de molybdène, sulfure de di(nonylphényl)dithiocarbamate de molybdène, sulfure de diéthyldithiocarbamate d'oxymolybdène, sulfure de dipropyldithiocarbamate d'oxymolybdène, sulfure de dibutyldithiocarbamate d'oxymolybdène, sulfure de dipentyldithiocarbamate d'oxymolybdène, sulfure de dihexyldithiocarbamate d'oxymolybdène, sulfure de dioctyldithiocarbamate d'oxymolybdène, sulfure de didécyldithiocarbamate d'oxymolybdène, sulfure de didodécyldithiocarbamate d'oxymolybdène, sulfure de di(butylphényl)dithiocarbamate d'oxymolybdène, et sulfure de di(nonylphényl)dithiocarbamate d'oxymolybdène et leurs associations.
EP86305275A 1985-07-08 1986-07-08 Compositions lubrifiantes Expired - Lifetime EP0208541B1 (fr)

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US8299005B2 (en) 2006-05-09 2012-10-30 Exxonmobil Research And Engineering Company Lubricating oil composition

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JPH066711B2 (ja) * 1986-01-23 1994-01-26 出光興産株式会社 トラクシヨンドライブ用流体
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DE3682715D1 (de) 1992-01-16
EP0208541A3 (en) 1988-05-18

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