US20180112148A1 - Lubricating composition - Google Patents

Lubricating composition Download PDF

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Publication number
US20180112148A1
US20180112148A1 US15/560,528 US201615560528A US2018112148A1 US 20180112148 A1 US20180112148 A1 US 20180112148A1 US 201615560528 A US201615560528 A US 201615560528A US 2018112148 A1 US2018112148 A1 US 2018112148A1
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Prior art keywords
lubricating composition
composition according
group
lubricating
branched
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Abandoned
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US15/560,528
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English (en)
Inventor
Goulven BOUVIER
Alder Da Costa D'ambros
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TotalEnergies Marketing Services SA
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Total Marketing Services SA
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Assigned to TOTAL MARKETING SERVICES reassignment TOTAL MARKETING SERVICES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DA COSTA D'AMBROS, Alder, BOUVIER, Goulven
Publication of US20180112148A1 publication Critical patent/US20180112148A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • 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
    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
    • 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
    • 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
    • C10M129/70—Esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/002—Traction fluids
    • 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
    • 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
    • C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
    • 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
    • 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
    • C10M2205/028—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
    • 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
    • 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
    • C10M2205/028—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
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
    • C10M2207/2815—Esters of (cyclo)aliphatic monocarboxylic acids used as base material
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/065—Saturated Compounds
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/067—Unsaturated Compounds
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/069—Linear chain compounds
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/071—Branched chain compounds
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
    • 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
    • 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
    • C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic 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
    • C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
    • C10N2220/021—
    • C10N2220/022—
    • C10N2230/10—
    • C10N2240/042—

Definitions

  • the invention relates to the field of lubricating compositions, notably lubricating compositions for automobile vehicles, in particular the field of lubricating compositions for transmission, for gear box or for a bridge.
  • the lubricating composition according to the invention comprises at least 30% by weight of the composition of at least one monoester, at least a polyalphaolefin oil (PAO) for which the kinematic viscosity measured at 100 C ranges from 40 to 3,000 mm 2 ⁇ s ⁇ 1 and at least one polyalphaolefin oil (PAO) for which the kinematic viscosity measured at 100° C. ranges from 1.5 to 10 mm 2 ⁇ s ⁇ 1 .
  • PAO polyalphaolefin oil
  • the invention also relates to the use of this lubricating composition for reducing the fuel consumption of a vehicle equipped with a transmission, notably with a bridge or a gear box, lubricated by means of this lubricating composition.
  • Oils for gear boxes or for a bridge, and more generally oils for gears should fulfill many requirements, notably related to the driving comfort (perfect switching of gears, silent operation, operation without any incident, great reliability), to the lifetime of the assembly (reduction of wear during cold gear switching, no deposits and great thermal stability and to oxidation, lubrication safety at high temperatures, stable viscosity situation and absence of any shear losses, long lifetime) as well as the taking into account of environmental aspects (lower fuel consumption, reduction of oil consumption, low release of noise, easy discharge).
  • ATF oils for automatic transmission fluids As regards the requirements imposed to oils of automatic gear boxes (ATF oils for automatic transmission fluids), because of their use, it appears for ATF oils very specific requirements which are high constancy of the friction coefficient during the whole dwelling time for an optimum switching of gears, excellent stability to ageing for long oil change intervals, good viscosity-temperature strength in order to guarantee perfect operation with a hot engine and a cold engine and sufficient compatibility of seal with different elastomers used in the transmission gaskets so that the latter do not swell, do not shrink and do not become fragile.
  • the nature of the lubricating compositions for automobile engines has an influence on the emission of pollutants and on the fuel consumption.
  • the lubricating compositions for engines for vehicles giving the possibility of saving energy are often designated by “fuel-eco” (FE), in English terminology.
  • FE fuel-eco
  • Such “fuel-eco” oils have been developed for fulfilling these new needs. The reduction of the energy losses is therefore a constant search in the field of lubricating compositions for vehicles.
  • the lubricating compositions for vehicles should therefore have improved properties and performances. It is notably necessary to provide alternative lubricating compositions, in particular lubricating compositions having a high viscosity index (VI) as well as a low traction coefficient.
  • VI viscosity index
  • the sought lubricating compositions should have a high viscosity index in order to avoid energy losses under cold conditions because of friction but also for keeping hot a sufficient lubricant film on the lubricated elements.
  • a high viscosity index therefore guarantees a lesser drop in the viscosity when the temperature increases.
  • the invention provides a lubricating composition
  • a lubricating composition comprising
  • the composition according to the invention comprises at least one monoester (a), at least a polyalphaolefin oil (b) and at least a polyalphaolefin oil (c). It may only comprise a single monoester (a), a single polyalphaolefin oil (b) and a single polyalphaolefin oil (c). It may also comprise one, two or three monoesters (a) but also one, two or three polyalphaolefin oils (b) or further one, two or three polyalphaolefin oils (c).
  • the monoester (a) present within the lubricating composition according to the invention is a monoester of formula (I).
  • R 1 represents a hydrocarbon group, either saturated or unsaturated, linear or branched, comprising from 14 to 20 carbon atoms, preferentially from 14 to 18 carbon atoms, more preferentially from 16 to 18 carbon atoms.
  • R 2 represents a hydrocarbon group, either saturated or unsaturated, linear or branched, comprising from 3 to 14 carbon atoms, preferentially from 4 to 12 carbon atoms, more preferentially from 4 to 10 carbon atoms.
  • the monoester (a) present within the lubricating composition according to the invention is a monoester of formula (I) wherein
  • the monoester (a) present within the lubricating composition according to the invention is a monoester of formula (I) wherein R 1 and R 2 are linear groups.
  • the monoester (a) present within the lubricating composition according to the invention is a monoester of formula (I) wherein R 1 and R 2 represent independently a group selected from among
  • the monoester (a) present within the lubricating composition according to the invention is a monoester of formula (I) wherein R 1 and R 2 are selected from among
  • a single R 1 or a single R 2 is selected from either one of these groups.
  • the monoester (a) is of formula (I) wherein
  • a monoester (a) of formula (I) wherein R 1 is a saturated group and R 2 is a saturated group is particularly preferred.
  • a monoester (a) of formula (I) wherein R 1 is an unsaturated group and R 2 is a saturated group is more particularly preferred.
  • the monoester (a) of formula (I) according to the invention may be selected from many monoesters. Preferably, it is selected from among stearates, preferably alkyl stearates and alkenyl stearates; more preferentially C 4 -C 10 alkyl stearates, in particular butyl stearate, pentyl stearate, hexyl stearate, heptyl stearate, octyl stearate, nonyl stearate, decyl stearate.
  • stearates preferably alkyl stearates and alkenyl stearates
  • C 4 -C 10 alkyl stearates in particular butyl stearate, pentyl stearate, hexyl stearate, heptyl stearate, octyl stearate, nonyl stearate, decyl ste
  • oleates preferably alkyl oleates and alkenyl oleates, more preferentially C 4 -C 10 -alkyl oleates, in particular butyl oleate, pentyl oleate, hexyl oleate, heptyl oleate, octyl oleate, nonyl oleate, decyl oleate.
  • linoleates preferably alkyl linoleates and alkenyl linoleates, more preferentially C 4 -C 10 -alkyl linoleates, in particular butyl linoleate, pentyl linoleate, hexyl linoleate, heptyl linoleate, octyl linoleate, nonyl linoleate, decyl linoleate. Mention may also be made of palmitoleates; palmitates; linolenates; eicosenoates; esters of erucic acid; esters of nervonic acid.
  • the monoester (a) of formula (I) according to the invention may also be selected from alkene monoesters and alkyl monoesters, preferably C 2 -C 10 -alkyl monoesters, in particular ethyl monoesters, propyl monoesters, butyl monoesters, pentyl monoesters, hexyl monoesters, heptyl monoesters, octyl monoesters, nonyl monoesters, decyl monoesters.
  • alkene monoesters and alkyl monoesters preferably C 2 -C 10 -alkyl monoesters, in particular ethyl monoesters, propyl monoesters, butyl monoesters, pentyl monoesters, hexyl monoesters, heptyl monoesters, octyl monoesters, nonyl monoesters, decyl monoesters.
  • the lubricating composition according to the invention comprises from 30 to 70% by weight of the monoester composition of formula (I). Also advantageously, the lubricating composition according to the invention comprises from 30 to 60% by weight of the composition or from 30 to 50% by weight of the monoester composition of formula (I).
  • the lubricating composition according to the invention comprises at least two polyalphaolefin oils (b) and (c). These are hydrogenated PAOs.
  • the polyalphaolefin oil (b) is a heavy PAO. It has a kinematic viscosity measured at 100° C. according to the ASTM D445 standard ranging from 40 to 3,000 mm 2 ⁇ s ⁇ 1 .
  • the polyalphaolefin oil (c) is a lightweight PAO. It has a kinematic viscosity measured at 100° C. according to the ASTM D445 standard ranging from 1.5 to 10 mm 2 ⁇ s ⁇ 1 .
  • the kinematic viscosity of the polyalphaolefin oil (b), measured at 100° C. according to the ASTM D445 standard ranges from 40 to 1,500 mm 2 ⁇ s ⁇ 1 . More preferably, the kinematic viscosity of the polyalphaolefin oil (b), measured at 100° C. according to the ASTM D445 standard, ranges from 40 to 300 mm 2 ⁇ s ⁇ 1 .
  • the average molecular mass by weight of the polyalphaolefin oil (b) is greater than 2,500 Da or ranges from 2,500 to 80,000 Da. More preferably, the average molecular mass by weight of the polyalphaolefin oil (b) ranges from 4,000 to 50,000 Da.
  • the polyalphaolefin oil (b) has a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 40 to 1,500 mm 2 ⁇ s ⁇ 1 and an average molecular mass by weight ranging from 2,500 to 80,000 Da or from 4,000 to 50,000 Da.
  • the polyalphaolefin oil (b) has a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 40 to 300 mm 2 ⁇ s ⁇ 1 and an average molecular mass by weight ranging from 2,500 to 80,000 Da or from 4,000 to 50,000 Da.
  • the kinematic viscosity of the polyalphaolefin oil (c), measured at 100° C. according to the ASTM D445 standard ranges from 1.5 to 10 mm 2 ⁇ s ⁇ 1 or from 2 to 10 mm 2 ⁇ s ⁇ 1 . More preferably, the kinematic viscosity of the polyalphaolefin oil (c), measured at 100° C. according to the ASTM D445 standard, ranges from 1.5 to 8 mm 2 ⁇ s ⁇ 1 or from 2 to 8 mm 2 ⁇ s ⁇ 1 .
  • the average molecular mass by weight of the polyalphaolefin oil (c) is less than 500 Da or ranges from 50 to 500 Da. More preferably, the average molecular mass by weight of the polyalphaolefin oil (c) ranges from 50 to 350 Da or from 50 to 300 Da.
  • the polyalphaolefin oil (c) has a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 1.5 to 8 mm 2 ⁇ s ⁇ 1 and an average molecular mass by weight ranging from 50 to 500 Da or from 50 to 350 Da or from 50 to 300 Da or else a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 2 to 8 mm 2 ⁇ s ⁇ 1 and an average molecular mass by weight ranging from 50 to 500 Da or from 50 to 350 Da or from 50 to 300 Da.
  • the polyalphaolefin oil (c) has a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 1.5 to 6 mm 2 ⁇ s ⁇ 1 and an average molecular mass by weight ranging from 50 to 500 Da or from 50 to 350 Da or from 50 to 300 Da or else a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, ranging from 2 to 6 mm 2 ⁇ s ⁇ 1 and an average molecular mass by weight ranging from 50 to 500 Da or from 50 to 350 Da or from 50 to 300 Da.
  • polyalphaolefin oil (c) As a particular polyalphaolefin oil (c) according to the invention, mention may also be made of a kinematic viscosity oil at 100° C., measured according to the ASTM D445 standard, ranging from 3 to 4 mm 2 ⁇ s ⁇ 1 , further comprising 50% by weight of 9-methyl-11-octyl-henicosane, a trimer of 1-decene.
  • the respective proportions of polyalphaolefin oils (b) and (c) within the lubricating composition according to the invention may vary.
  • the lubricating composition according to the invention comprises from 5 to 30%, preferably from 5 to 25%, by weight of the composition of a polyalphaolefin oil (b).
  • the lubricating composition according to the invention comprises from 5 to 70%, preferably from 30 to 70%, by weight of the composition of a polyalphaolefin oil (c).
  • the respective proportions of polyalphaolefin oils (b) and (c) within the lubricating composition according to the invention may also vary according to the targeted application for the lubricating composition according to the invention.
  • the lubricating composition according to the invention may comprise from 1 to 40% by weight of the composition of a polyalphaolefin oil (b) and from 30 to 69%, by weight of the composition of a polyalphaolefin oil (c).
  • the lubricating composition according to the invention may comprise other oils as well as additives.
  • the lubricating composition according to the invention may comprise any type of mineral lubricant base oil, either synthetic or natural, animal or vegetable, adapted to its use.
  • the base oils used in the lubricating compositions according to the invention may be oils of mineral or synthetic origin belonging to the groups I to V according to the classes defined in the API classification (or their equivalents according to the ATIEL classification) (table A) or mixtures thereof.
  • the mineral base oils useful according to the invention include all types of bases obtained by atmospheric distillation and in vacuo of crude oil, followed by refinery operations such as extraction with a solvent, deasphalting, deparaffining with a solvent, hydrotreatment, hydrocracking, hydroisomerization and hydrofinishing. Mixtures of synthetic and mineral oils may also be used.
  • lubricating bases for producing the lubricating compositions according to the invention, except that they should have properties, notably of viscosity, viscosity index, sulfur content, resistance to oxidation, adapted to a use for engines or for vehicle transmissions.
  • the base oils of the lubricating compositions according to the invention may also be selected from among synthetic oils, such as certain esters of carboxylic acids and of alcohols, as well as from among polyalphaolefins.
  • the other polyalphaolefins used a base oils are for example obtained from monomers comprising from 4 to 32 carbon atoms, for example from octene or decene, and the viscosity of which at 100° C. is comprised between 1.5 and 15 mm 2 ⁇ s ⁇ 1 according to the ASTM D445 standard. Their average molecular mass by weight is generally comprised between 250 and 3,000 Da according to the ASTM D5296 standard.
  • the lubricating composition according to the invention comprises at least 50% by mass of base oils based on the total mass of the composition. More advantageously, the lubricating composition according to the invention comprises at least 60% by mass, or even at least 70% by mass of base oils based on the total mass of the composition. Also advantageously, the lubricating composition according to the invention comprises from 75 to 99.9% by mass of base oils based on the total mass of the composition.
  • the preferred additives for the lubricating composition according to the invention are selected from among detergent additives, anti-wear additives, friction modifying additives, extreme pressure additives, dispersants, flow point improvers, anti-foam agents, thickeners and mixtures thereof.
  • the lubricating composition according to the invention comprises at least one additive improving the flow point or PPD agent (for depressant point or agent for reducing the flow point).
  • PPD agent for depressant point or agent for reducing the flow point
  • the agents for reducing the flow point generally improve the cold behavior of the lubricating composition according to the invention.
  • agents reducing the flow point mention may be made of alkyl polymethacrylates, polyacrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalenes, polyalkyl styrenes.
  • the lubricating composition according to the invention may also comprise at least one anti-wear additive, at least one extreme pressure additive or mixtures thereof.
  • the anti-wear additives and the extreme pressure additives protect the surfaces during friction by forming a protective film adsorbed on these surfaces.
  • the anti-wear additives are selected from among phosphorus-sulfur additives like metal alkylthiophosphates, in particular zinc alkylthiophosphates, and more specifically zinc dialkyldithiophosphates or ZnDTP.
  • the preferred compounds are of formula Zn((SP(S)(OR 3 )(OR 4 )) 2 , wherein R 3 and R 4 , either identical or different, independently represent an alkyl group, preferably an alkyl group including 1 to 18 carbon atoms.
  • the phosphates of amines are also anti-wear additives which may be used in the lubricating composition according to the invention.
  • the phosphorus brought by these additives may act as a poison for the catalytic systems of automobiles since these additives generate ashes. It is possible to minimize these effects by partly substituting the amine phosphates with additives not providing phosphorus, such as, for example, polysulfides, notably sulphur-containing olefins.
  • the lubricating composition according to the invention may comprise from 0.01 to 6% by mass, preferentially from 0.05 to 4% by mass, more preferentially from 0.1 to 2% by mass based on the total mass of the lubricating composition, of anti-wear additives and of extreme pressure additives.
  • the lubricating composition according to the invention may comprise at least one friction modifying additive.
  • the friction modifying additive may be selected from among a compound providing metal elements and a compound without any ashes. From among the compounds providing metal elements, mention may be made of complexes of transition metals such as Mo, Sb, Sn, Fe, Cu, Zn for which the ligands may be hydrocarbon compounds comprising oxygen, nitrogen, sulphur or phosphorus atoms.
  • the friction modifying additives without any ashes are generally of organic origin and may be selected from among monoesters of fatty acids and of polyols, alkoxylated amines, alkoxylated fatty amines, fatty epoxides, borate fatty epoxides; the fatty amines or the esters of glycerol with a fatty acid.
  • the fatty compounds comprise at least one hydrocarbon group comprising from 10 to 24 carbon atoms.
  • the lubricating composition according to the invention may comprise from 0.01 to 2% by mass or from 0.01 to 5% by mass, preferentially from 0.1 to 1.5% by mass or from 0.1 to 2% by mass based on the total mass of the lubricating composition, of a friction modifying additive.
  • the lubricating composition according to the invention may comprise at least one antioxidant additive.
  • the antioxidant additive generally gives the possibility of delaying the degradation of the lubricating composition during operation. This degradation may notably be expressed by the formation of deposits, by the presence of sludges or by an increase in the viscosity of the lubricating composition.
  • the antioxidant additives notably act as radical inhibitors or destructors of hydroperoxides. From among the antioxidant additives currently used, mention may be made of the antioxidant additives of the phenolic type, the antioxidant additives of the amine type, the antioxidant phosphorus-sulfur-containing additives. Certain of these antioxidant additives, for example the phosphorus-sulfur-containing antioxidant additives, may be generators of ashes.
  • the phenolic antioxidant additives may be without any ashes or else be in the form of neutral or basic metal salts.
  • the antioxidant additives may notably be selected from among sterically hindered phenols, sterically hindered phenol esters, and sterically hindered phenols comprising a thioether bridge, diphenylamines, diphenylamines substituted with at least one C 1 -C 12 alkyl group, N,N′-dialkyl-aryl-diamines and mixtures thereof.
  • the sterically hindered phenols are selected from among the compounds forming a phenol group for which at least one carbon in vicinity to the carbon bearing the alcohol function is substituted with at least one C 1 -C 10 alkyl group, preferably a C 1 -C 6 alkyl group, preferably a C 4 alkyl group, preferably with the ter-butyl group.
  • the aminated compounds are another class of antioxidant additives which may be used, optionally in combination with the phenolic antioxidant additives.
  • aminated compounds are the aromatic amines, for example the aromatic amines of formula NR 5 R 6 R 7 wherein R 5 represents an aliphatic group or an aromatic group, optionally substituted, R 6 represents an aromatic group, optionally substituted, R 7 represents a hydrogen atom, an alkyl group, an aryl group or a group of formula R 8 S(O) z R 9 wherein R 8 represents an alkylene group or an alkenylene group, R 9 represents an alkyl group, an alkenyl group or an aryl group and z represents 0, 1 or 2.
  • Sulfurized alkyl phenols or their salts of alkaline and earth-alkaline metals may also be used as antioxidant additives.
  • antioxidant additives are that of copper-containing compounds, for examples thio- or dithio-phosphates of copper, salts of copper and carboxylic acids, dithiocarbamates, sulfonates, phenates, acetylacetonates of copper.
  • the salts of copper I and II, the salts of succinic acid or anhydride may also be used.
  • the lubricating composition according to the invention may contain other types of antioxidant additives known to one skilled in the art.
  • the lubricating composition comprises at least one antioxidant additive without any ashes.
  • the lubricating composition according to the invention comprises from 0.5 to 2% by weight based on the total mass of the composition, of at least one antioxidant additive.
  • the lubricating composition according to the invention may also comprise at least one detergent additive.
  • the detergent additives generally allow reduction of the formation of deposits at the surface of the metal parts by dissolution of the secondary oxidation products and of the combustion secondary products.
  • the detergent additives which may be used in the lubricating composition according to the invention are generally known to one skilled in the art.
  • the detergent additives may be anionic compounds comprising a long lipophilic hydrocarbon chain and a hydrophilic head.
  • the associated cation may be a metal cation of an alkaline or earth-alkaline metal.
  • the detergent additives are preferentially selected from among salts of alkaline metals or earth-alkaline metals of carboxylic acids, sulfonates, salicylates, naphthenates, as well as salts of phenates.
  • the alkaline and earth-alkaline metals are preferentially calcium, magnesium, sodium or barium. These metal salts generally comprise the metal in a stoichiometric amount or else in excess, therefore in an amount greater than the stoichiometric amount.
  • the excess metal providing the overbased nature to the detergent additive is then generally in the form of an insoluble metal salt in oil, for example a carbonate, a hydroxide, an oxalate, an acetate, a glutamate, preferentially a carbonate.
  • the lubricating composition according to the invention may comprise from 2 to 4% by weight of a detergent additive based on the total mass of the lubricating composition.
  • the lubricating composition according to the invention may also comprise at least one dispersant agent.
  • the dispersant agent may be selected from among Mannich bases, succinimides and derivatives thereof.
  • the lubricating composition according to the invention may comprise from 0.2 to 10% by mass of a dispersant agent based on the total mass of the lubricating composition.
  • the lubricating composition may also comprise at least one polymer improving the viscosity index.
  • polymers improving the viscosity index mention may be made of polymeric esters, homopolymers or copolymers, either hydrogenated or non-hydrogenated, of styrene, of butadiene and isoprene, polymethacrylates (PMA).
  • the lubricating composition according to the invention may comprise from 1 to 15% by mass based on the total mass of the polymeric lubricating composition improving the viscosity index.
  • the invention also relates to the use as a lubricant of the lubricating composition according to the invention.
  • the lubricating composition according to the invention is useful for lubricating a system of gears, in particular a vehicle transmission, notably a bridge or a gear box.
  • composition according to the invention is also advantageously used for reducing the fuel consumption of an engine, in particular of a vehicle engine.
  • the composition according to the invention is used for reducing the fuel consumption of a vehicle equipped with a transmission, notably a bridge or a gear box, lubricated by means of this composition.
  • the invention also relates to the use of at least one lubricating composition according to the invention for reducing the traction coefficient of a transmission oil, preferably for reducing the traction coefficient of an oil for gear boxes, in particular of a gear box of a vehicle.
  • the invention also relates to the use for reducing the traction coefficient of a lubricating composition comprising at least one heavy PAO (b) and at least one lightweight PAO (c) and at least 30% by weight of a composition of a monoester (a) of formula (I) defined according to the invention.
  • the uses of the lubricating composition according to the invention comprise the contacting of at least one element of the transmission, in particular of the gear box or of the bridge, with a lubricating composition according to the invention.
  • Decyl oleate (Stéarinerie Dubois) is mixed with a heavy PAO (a product Spectrasyn mPAO150 from Exxon—KV100 of about 150 mm 2 ⁇ s ⁇ 1 ), a first lightweight PAO (product Spectrasyn 6 from Exxon—KV100 of about 6 mm 2 ⁇ s ⁇ 1 ) and a second lightweight PAO (product Spectrasyn 8 from of Exxon—KV100 of about 8 mm 2 ⁇ s ⁇ 1 ).
  • a heavy PAO a product Spectrasyn mPAO150 from Exxon—KV100 of about 150 mm 2 ⁇ s ⁇ 1
  • a first lightweight PAO product Spectrasyn 6 from Exxon—KV100 of about 6 mm 2 ⁇ s ⁇ 1
  • a second lightweight PAO product Spectrasyn 8 from of Exxon—KV100 of about 8 mm 2 ⁇ s ⁇ 1
  • a second composition according to the invention is prepared wherein the decyl oleate is replaced with butyl stearate (Stéarinerie Dubois).
  • the respective amounts of the different constituents are shown in table 1 and are expressed in a mass % based on the mass of the final composition.
  • the viscosity index (VI) is measured according to the ASTM D2270 standard.
  • composition (2) according to the according to the invention (%) invention (%) decyl oleate 30 0 butyl stearate 0 30 heavy PAO (b) 8 10 lightweight PAO (c1) 30 4 (Spectrasyn 6) lightweight PAO (c2) 32 56 (Spectrasyn 8) Viscosity index (VI) 174 176
  • COMPARATIVE EXAMPLE 1 PREPARATION OF COMPARATIVE LUBRICATING COMPOSITIONS
  • 3 comparative lubricating compositions are prepared by replacing decyl oleate respectively with methyl oleate (Stéarinerie Dubois), by methyl stearate (Stéarinerie Dubois) and by the isononyl isononanoate (Stéarinerie Dubois).
  • the respective amounts of the different constituents are shown in table 2 and are expressed in mass % based on the mass of the final composition.
  • the lubricating compositions according to the invention have a better traction coefficient than the comparative lubricating compositions.
  • EXAMPLE 3 COMPARISON OF THE OXIDATION RESISTANCE PROPERTIES OF THE LUBRICATING COMPOSITION (1) ACCORDING TO THE INVENTION AND OF THE COMPARATIVE LUBRICATING COMPOSITION (1)
  • the oxidation resistance properties of the prepared lubricating compositions are evaluated according to the method A of the standard CEC-L48-A-00 and the obtained results are shown in the table 4.
  • TAN Total Acid Number
  • PAI Peak Area Increase
  • Lubricating composition (1) according to the Comparative lubricating invention composition (1) Duration (h) 192 192 192 192 initial KV 100 (mm 2 ⁇ s ⁇ 1 ) 6.68 6.79 final KV 100 (mm 2 ⁇ s ⁇ 1 ) 7.88 11.08 R KV 100 (%) 18.01 63.18 initial KV 40 (mm 2 ⁇ s ⁇ 1 ) 31.13 30.44 initial KV 40 (mm 2 ⁇ s ⁇ 1 ) 37.79 60.15 R KV 40 (%) 21.39 97.60 Insoluble compounds 0 4 cm at the bottom initial TAN 1.87 1.46 final TAN 3.48 4.12 R TAN (%) 1.6 2.7 PAI ⁇ 20 34
  • the lubricating composition according to the invention has a resistance to oxidation which is greater than that of the comparative lubricating composition. No deposit of insoluble compounds occurs with the lubricating composition according to the invention.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
US15/560,528 2015-03-23 2016-03-22 Lubricating composition Abandoned US20180112148A1 (en)

Applications Claiming Priority (3)

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FR1552387 2015-03-23
FR1552387A FR3034100B1 (fr) 2015-03-23 2015-03-23 Composition lubrifiante
PCT/EP2016/056237 WO2016150950A1 (fr) 2015-03-23 2016-03-22 Composition lubrifiante

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CN (1) CN107466315A (enrdf_load_stackoverflow)
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US20180100119A1 (en) * 2015-03-31 2018-04-12 Idemitsu Kosan Co., Ltd. Transmission lubricating oil composition
US10738258B2 (en) 2017-03-24 2020-08-11 Exxonmobil Research And Engineering Company Method for improving engine fuel efficiency and energy efficiency
US10808196B2 (en) 2017-03-28 2020-10-20 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity reducing base stocks and lubricating oil formulations containing the same
US10858610B2 (en) 2017-03-24 2020-12-08 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
US10876062B2 (en) 2017-03-24 2020-12-29 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
WO2021112946A1 (en) 2019-12-04 2021-06-10 The Lubrizol Corporation Use of ester base stocks to improve viscosity index and efficiency in driveline and industrial gear lubricating fluids
US11124732B2 (en) * 2015-03-30 2021-09-21 Idemitsu Kosan Co., Ltd. Lubricant composition
WO2022072962A1 (en) * 2020-09-30 2022-04-07 Exxonmobil Research And Engineering Company Low friction and low traction lubricant compositions useful in dry clutch motorcycles

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EP3601504A1 (en) * 2017-03-24 2020-02-05 ExxonMobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
WO2018175046A1 (en) * 2017-03-24 2018-09-27 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
WO2018175047A1 (en) * 2017-03-24 2018-09-27 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
FR3094377B1 (fr) * 2019-04-01 2021-05-21 Total Marketing Services Composition lubrifiante pour transmission

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WO2015194236A1 (ja) * 2014-06-16 2015-12-23 Ｊｘ日鉱日石エネルギー株式会社 変速機用潤滑油組成物

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* Cited by examiner, † Cited by third party
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US11124732B2 (en) * 2015-03-30 2021-09-21 Idemitsu Kosan Co., Ltd. Lubricant composition
US20180100119A1 (en) * 2015-03-31 2018-04-12 Idemitsu Kosan Co., Ltd. Transmission lubricating oil composition
US10889779B2 (en) * 2015-03-31 2021-01-12 Idemitsu Kosan Co., Ltd. Transmission lubricating oil composition
US10738258B2 (en) 2017-03-24 2020-08-11 Exxonmobil Research And Engineering Company Method for improving engine fuel efficiency and energy efficiency
US10858610B2 (en) 2017-03-24 2020-12-08 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
US10876062B2 (en) 2017-03-24 2020-12-29 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same
US10808196B2 (en) 2017-03-28 2020-10-20 Exxonmobil Chemical Patents Inc. Cold cranking simulator viscosity reducing base stocks and lubricating oil formulations containing the same
WO2021112946A1 (en) 2019-12-04 2021-06-10 The Lubrizol Corporation Use of ester base stocks to improve viscosity index and efficiency in driveline and industrial gear lubricating fluids
WO2022072962A1 (en) * 2020-09-30 2022-04-07 Exxonmobil Research And Engineering Company Low friction and low traction lubricant compositions useful in dry clutch motorcycles

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WO2016150950A1 (fr) 2016-09-29
CN107466315A (zh) 2017-12-12
EP3274432A1 (fr) 2018-01-31
FR3034100A1 (fr) 2016-09-30
FR3034100B1 (fr) 2017-04-28
JP2018509512A (ja) 2018-04-05
EP3274432B1 (fr) 2021-10-27

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