EP3523407B1 - Schmierstoffzusammensetzung für einen schiffsmotor oder einen stationären motor - Google Patents

Schmierstoffzusammensetzung für einen schiffsmotor oder einen stationären motor Download PDF

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Publication number
EP3523407B1
EP3523407B1 EP17780738.5A EP17780738A EP3523407B1 EP 3523407 B1 EP3523407 B1 EP 3523407B1 EP 17780738 A EP17780738 A EP 17780738A EP 3523407 B1 EP3523407 B1 EP 3523407B1
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EP
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Prior art keywords
mass
lubricant composition
engine
copolymer
fuel
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EP17780738.5A
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English (en)
French (fr)
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EP3523407A1 (de
Inventor
Catherine AMBLARD
Christian Gonneaud
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TotalEnergies Onetech SAS
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Total Marketing Services SA
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon 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
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic 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
    • 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
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
    • 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
    • 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
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/04—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing propene
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/12—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing conjugated diene
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/14—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing non-conjugated diene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions 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
    • C10M2205/024—Propene
    • 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
    • C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
    • 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
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbasedsulfonic acid salts
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • 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
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    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/04—Detergent property or dispersant property
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • 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
    • C10N2030/08—Resistance to extreme temperature
    • C—CHEMISTRY; METALLURGY
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/18—Anti-foaming property
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10N2030/54—Fuel economy
    • C—CHEMISTRY; METALLURGY
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/68—Shear stability
    • 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
    • C10N2040/25—Internal-combustion engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/26—Two-strokes or two-cycle engines

Definitions

  • the present invention is applicable to the field of lubricating compositions, and more particularly to the field of lubricating compositions for a marine engine, in particular for a four-stroke or two-stroke marine engine, preferably for a four-stroke marine engine, or for a stationary engine. More particularly, the present invention relates to lubricating compositions the use of which promotes fuel savings (Fuel Eco or FE or even Gas Eco or GE) and having good engine cleanliness properties, in particular crankcase cleanliness. The present invention also relates to a process for reducing the fuel consumption, in particular fuel oil, of a ship or of a power plant using this lubricating composition.
  • the formulation of a “fuel-eco” and / or “gas-eco” lubricant must not be done to the detriment of the other performances of the lubricant.
  • the resistance to wear, demulsion, neutralization capacity, and the cleanliness of the engine (piston and / or crankcase) must not be impaired.
  • a lubricating composition comprising a copolymer comprising an olefin block and a vinyl aromatic block and in particular its use for reducing engine fouling.
  • a composition comprising at least one olefin copolymer, at least one hydrogenated styrene-isoprene copolymer, at least one glycerol ester and its use to improve Fuel Eco and limit engine fouling.
  • WO 2014/135596 a lubricating composition comprising at least one alkoxylated fatty amine and at least one copolymer of styrene and hydrogenated isoprene, and its use to improve Fuel Eco and limit engine fouling.
  • WO2004087849 discloses a lubricating composition comprising a base oil, a copolymer (A) comprising ethylene units and a copolymer (B) comprising a vinyl aromatic block and a hydrogenated diene block.
  • a lubricating composition for a marine engine or for a stationary engine which allows satisfactory reductions in fuel consumption (fuel oil and / or gas), in particular fuel oil, while maintaining the other performances of the engine.
  • lubricating composition in particular the cleanliness of the engine, more specifically the cleanliness of the crankcase.
  • a lubricating composition for a marine engine or for a stationary engine having good thermal resistance under severe conditions of use, and more particularly in the presence of fuel (fuel oil and / or gas), in particular of fuel. Indeed, during the combustion of fuel oil or gas within the engine, residues and unburnt combustion can pollute the lubricating composition and thus alter its thermal resistance and its detergency properties.
  • An objective of the present invention is therefore to provide a lubricating composition which overcomes all or part of the aforementioned drawbacks.
  • an objective of the present invention is to provide a lubricating composition for a marine engine or for a stationary engine allowing a saving of fuel (fuel oil and / or gas), in particular a saving of Fuel Eco (FE), while maintaining engine cleanliness. .
  • Another objective of the present invention is to provide a lubrication process allowing savings in fuel (fuel oil and / or gas), in particular fuel oil, while maintaining good engine cleanliness. Still other objectives will become apparent on reading the description of the invention which follows.
  • lubricating compositions for marine engines or for stationary engines making it possible to significantly reduce the consumption of fuels (fuel oil and / or gas), in particular fuel (Fuel Eco), while by maintaining or even improving engine cleanliness, in particular crankcase cleanliness, compared to conventional lubricating compositions for marine engines or for stationary engines.
  • a lubricating composition comprising at least one base oil, at least one detergent, at least one olefin copolymer and at least one hydrogenated and linear styrene-butadiene copolymer.
  • the present invention makes it possible to formulate lubricating compositions for a 4-stroke or 2-stroke, preferably 4-stroke, marine engine, or for a stationary engine, making it possible to combine both engine cleanliness and fuel savings (fuel and fuel). / or gas), in particular fuel (Fuel Eco).
  • the lubricating compositions according to the invention exhibit improved thermal resistance under severe conditions, and more particularly in the presence of fuel, in particular fuel oil.
  • the lubricating compositions according to the invention exhibit improved storage stability as well as a viscosity which does not vary or very little over time.
  • the linear hydrogenated styrene / butadiene copolymer can be chosen from styrene / hydrogenated butadiene block copolymers or statistical styrene / hydrogenated butadiene copolymers, or mixtures thereof.
  • the linear hydrogenated styrene / butadiene copolymer has a content of hydrogenated butadiene units ranging from 50% to 98% by mass, preferably from 60% to 98%, more preferably from 60% to 90%, relative to to the mass of linear hydrogenated styrene / butadiene copolymer.
  • the linear hydrogenated styrene / butadiene copolymer has a content of hydrogenated butadiene units, ranging from 50% to 98% by moles, preferably from 60% to 98%, more preferably from 70 to 97%, more preferably from 70% to 95%, based on the number of moles of the linear hydrogenated styrene / butadiene copolymer.
  • the linear hydrogenated styrene / butadiene copolymer has a content of styrene units ranging from 2% to 50%, preferably from 2% to 40%, more preferably from 10% to 40% by mass relative to the mass of linear hydrogenated styrene / butadiene copolymer.
  • the hydrogenated linear styrene / butadiene copolymer has a content of styrene units ranging from 2% to 50%, preferably from 2% to 40%, more preferably from 5% to 30% by mole relative to the number of moles of the linear hydrogenated styrene / butadiene copolymer.
  • the hydrogenated linear styrene / butadiene copolymer according to the invention has a weight average molecular mass Mw ranging from 80,000 to 500,000 daltons, preferably from 80,000 to 250,000 daltons, plus preferably from 80,000 to 200,000 daltons, even more preferably from 80,000 to 150,000 daltons.
  • the linear hydrogenated styrene / butadiene copolymer according to the invention has a polydispersity index ranging from 0.8 to 1.4, preferably from 0.8 to 1.2.
  • the hydrogenated butadiene units are formed from 5 to 40% by mass of addition 1-4 butadiene, preferably from 20 to 40% relative to the mass of butadiene units in the copolymer linear hydrogenated styrene / butadiene and from 20 to 60% by mass of addition 1-2 butadiene, preferably from 30 to 60% relative to the mass of butadiene units in the styrene / hydrogenated and linear butadiene copolymer.
  • the hydrogenated butadiene units are formed from 10 to 60 mole% of addition 1-4 butadiene, preferably 20 to 50% based on the number of moles of butadiene units in the linear hydrogenated styrene / butadiene copolymer and from 30 to 80% by mole of addition 1-2 butadiene, preferably from 40 to 60% relative to the number of moles of butadiene units in the styrene / hydrogenated and linear butadiene copolymer .
  • linear hydrogenated styrene / butadiene copolymer examples include the linear hydrogenated styrene / butadiene polymers sold by the company Lubrizol.
  • the content by weight of linear hydrogenated styrene / butadiene copolymer in the lubricating composition according to the invention is from 0.01% to 8% by mass, relative to the total mass of the lubricating composition, preferably from 0.1% to 5%, more preferably from 0.1% to 2%, advantageously from 0.1 to 1%.
  • This quantity is understood as a quantity of active polymer material.
  • the linear hydrogenated styrene / butadiene copolymer used in the context of the present invention can be in the form of a dispersion in a mineral or synthetic oil, and more particularly in a group I oil according to the API classification.
  • the olefin copolymer is an ethylene-propylene copolymer.
  • These olefin copolymers are conventionally copolymers based on ethylene units and on propylene units, or optionally copolymers based on units. ethylene, propylene units and diene units (EPDM).
  • the olefin copolymer according to the invention is an ethylene / propylene copolymer.
  • the olefin copolymer according to the invention is in linear or star form, preferably in linear form.
  • the olefin copolymer according to the invention is in the form of blocks or in random form.
  • the olefin copolymer according to the invention advantageously has a content of ethylene units, ranging from 30% to 80% by mass, relative to the mass of olefin copolymer, preferably from 30% to 70%, more preferably from 40%. at 70%.
  • the olefin copolymer according to the invention also advantageously has a content of ethylene units, ranging from 40% to 90% by mole, relative to the number of moles of olefin copolymer, preferably from 40% to 80%, more preferably from 50% to 80%.
  • the olefin copolymer according to the invention advantageously has a content of propylene units, ranging from 20% to 70% by mass, relative to the mass of olefin copolymer, preferably from 20% to 60%, more preferably from 20%. at 50%.
  • the olefin copolymer according to the invention also advantageously has a content of propylene units, ranging from 10% to 60% by mole, relative to the number of moles of olefin copolymer, preferably from 20% to 60%, more preferably from 20% to 50%.
  • the olefin copolymer according to the invention advantageously has a weight-average molecular mass Mw of between 40,000 and 220,000 daltons, preferably between 60,000 and 220,000 daltons, more preferably between 100,000 and 220,000 daltons, even more preferably between 140,000 and 210,000 daltons.
  • the olefin copolymer according to the invention advantageously has a polydispersity index of between 1.5 and 5, preferably between 2 and 5, more preferably between 2 and 4, even more preferably between 2 and 3.5.
  • the amount of olefin copolymer in the lubricating composition according to the invention is from 0.01% to 5% by mass, relative to the total mass of the lubricating composition, preferably from 0.01% to 2%, more preferably from 0.01% to 1%, even more preferably from 0.1% to 1%.
  • This quantity is understood as a quantity of dry polymer material. Indeed, the olefin copolymer used in the context of the present invention is sometimes found in dilution in a mineral or synthetic oil (most often a group 1 oil according to the API classification).
  • the lubricating composition according to the invention can comprise at least one detergent.
  • the detergents used in the lubricating compositions according to the present invention are well known to those skilled in the art.
  • Detergents commonly used in the formulation of lubricating compositions are typically anionic compounds having a long lipophilic hydrocarbon chain and a hydrophilic head.
  • the associated cation is typically a metallic cation of an alkali or alkaline earth metal.
  • the detergents according to the invention are chosen from alkali metal or alkaline earth metal salts of carboxylic acids, sulphonates, salicylates and phenates taken alone or as a mixture. Detergents are named after the nature of the hydrophobic, carboxylate, sulfonate, salicylate or phenate chain.
  • the alkali metals and alkaline earth metals are preferably calcium, magnesium, sodium or barium, more preferably calcium.
  • the detergents used will not be overbased (or neutral) or overbased. We speak of non-overbased or "neutral" detergents when the metal salts contain the metal in approximately stoichiometric quantity. We speak of overbased detergents, when the metal is in excess (in an amount greater than the stoichiometric amount). The excess metal imparting the overbased character to the detergent is in the form of oil-insoluble metal salts.
  • the overbased detergents are thus in the form of micelles composed of insoluble metal salts maintained in suspension in the lubricating composition by the detergents in the form of oil-soluble metal salts.
  • These micelles can contain one or more types of insoluble metal salts, stabilized by one or more types of detergents.
  • the overbased detergents will be said to be of mixed type if the micelles include several types of detergents, which are different from one another by the nature of their hydrophobic chain.
  • the preferred detergents are the carboxylates, the sulphonates and / or the phenates, taken alone or as a mixture, in particular the carboxylates, the sulphonates and / or the calcium phenates.
  • the amount of detergents in the lubricating composition according to the invention is from 1% to 30% by mass, relative to the total mass of the lubricating composition, preferably from 1% to 25%, more preferably from 1% to 20% , even more preferably from 3% to 20%.
  • the amount of detergents in the lubricating composition according to the invention is from 10% to 30%, preferably from 10% to 25%, and more preferably from 10% to 20%, by mass relative to the total mass of said lubricating composition.
  • the BN (Base Number measured according to ASTM D-2896) of the lubricating compositions according to the present invention is totally or partly provided by neutral or overbased detergents based on alkali or alkaline earth metals.
  • the BN value of the lubricating compositions according to the present invention, measured according to ASTM D-2896 can vary from 3 to 140 mg of KOH / g, preferably from 3 to 80 mg of KOH / g, more preferably from 4 to 60 mg of KOH / g.
  • the BN value will be chosen as a function of the conditions of use of the lubricating compositions and in particular according to the sulfur content of the fuel used.
  • the BN value of the composition will be between 20 and 80 mg of KOH / g, more preferably between 20 and 65 mg of KOH / g. These compositions are preferably used in 4T marine engines or in stationary engines. Thus also for heavy fuel oils with a sulfur content ranging from 0.1% to 3.5% by weight, the BN value of the composition will be between 20 and 140 mg of KOH / g, more preferably between 20 and 100 mg. of KOH / g. These compositions are preferably used in 2-stroke marine engines, in particular for cylinder oils.
  • the BN value of the composition is between 5 and 30 mg of KOH / g, more preferably between 10 and 20 mg of KOH / g. These compositions are preferably used in 4T marine engines or in stationary engines. For gases, the BN value of the composition is less than 10 mg of KOH / g, more preferably between 2 and 8 mg of KOH / g. These compositions are preferably used in 4T marine engines or in stationary engines.
  • additives will be referred to as the additives described above, that is to say a) at least one olefin copolymer, b) at least one copolymer of styrene and of hydrogenated and linear butadiene, c ) at least one detergent as defined above.
  • the base oils used for the formulation of lubricating compositions according to the invention can be chosen from oils of mineral, synthetic or vegetable origin as well as their mixtures.
  • the mineral or synthetic oils generally used in the marine engine oil application belong to one of the classes defined in the API classification as summarized in the table below.
  • Saturated content Sulfur content Viscosity index (VI) Group I Mineral oils ⁇ 90% > 0.03% 80 ⁇ VI ⁇ 120 Group II Hydrocracked oils > 90% ⁇ 0.03% 80 ⁇ VI ⁇ 120 Group III Hydro-isomerized oils > 90% ⁇ 0.03% ⁇ 120 Group IV Poly-alpha-olefins (PAO) Group V
  • PEO Poly-alpha-olefins
  • Group I mineral oils can be obtained by distillation of selected naphthenic or paraffinic crudes followed by purification of these distillates by processes such as solvent extraction, solvent or catalytic dewaxing, hydrotreatment or hydrogenation.
  • Group I mineral bases are, for example, bases called Neutral Solvant (such as 150NS, 330NS, 500NS or 600NS) or Brightstock.
  • the oils of Groups II and III are obtained by more stringent purification processes, for example a combination of hydrotreatment, hydrocracking, hydrogenation and catalytic dewaxing.
  • Examples of Group IV and V synthetic bases include poly-alpha olefin, polybutenes, polyisobutenes, alkylbenzenes. These base oils can be used alone or as a mixture. Mineral oil can be combined with synthetic oil.
  • the lubricating base oil is chosen from the base oils of group I or of group II, taken alone or as a mixture.
  • the lubricating composition according to the invention can be characterized by a viscosimetric grade SAE-20, SAE-30, SAE-40, SAE-50 or SAE-60 according to the SAEJ300 classification, preferably SAE-30 or SAE-40, advantageously SAE-30.
  • Grade 20 oils have a kinematic viscosity at 100 ° C between 5.6 and 9.3 cSt.
  • Grade 30 oils have a kinematic viscosity at 100 ° C between 9.3 and 12.5 cSt.
  • Grade 40 oils have a kinematic viscosity at 100 ° C between 12.5 and 16.3 cSt.
  • Grade 50 oils have a kinematic viscosity at 100 ° C between 16.3 and 21.9 cSt.
  • Grade 60 oils have a kinematic viscosity at 100 ° C between 21.9 and 26.1 cSt.
  • Kinematic viscosity is measured according to ASTM D7279 at 100 ° C.
  • the lubricating composition according to the invention has a kinematic viscosity measured according to standard ASTM D7279 at 100 ° C of between 5.6 and 26.1 cSt, preferably between 9.3 and 21.9 cSt , more preferably between 9.3 and 16.3 cSt.
  • the content by weight of base oil in the lubricating composition according to the invention is from 40% to 95%, preferably from 50% to 95%, more preferably from 60% to 95%, advantageously from 60 to 85% relative to the total weight of the lubricating composition.
  • the lubricating composition is not in the form of an emulsion.
  • the composition according to the invention can comprise at least one optional additive, in particular chosen from those commonly used by a person skilled in the art.
  • the optional additive can be selected from dispersant additives, antiwear additives, antioxidants, friction modifiers, pour point improvers, defoamers, thickeners, fatty amines and theirs. mixtures. These are well known to those skilled in the art.
  • the lubricating composition according to the invention can also comprise a dispersant.
  • Dispersants are well known additives used in the formulation of lubricating compositions, in particular for application in the marine field. Their role the first is to maintain in suspension the particles initially present or appearing in the lubricating composition during its use in the engine. They prevent their agglomeration by playing on steric hindrance. They can also exhibit a synergistic effect on neutralization.
  • Dispersants used as lubricant additives typically contain a polar group, associated with a relatively long hydrocarbon chain, generally containing from 50 to 400 carbon atoms. The polar group typically contains at least one element nitrogen, oxygen or phosphorus.
  • the dispersant can be chosen from derivatives of succinic acid.
  • succinic acid derivatives within the meaning of the invention, is meant the esters of succinic acid or the amide esters of succinic acid.
  • the dispersant is chosen from compounds comprising at least one succinimide group.
  • the dispersant is chosen from borated compounds comprising at least one succinimide group.
  • the dispersant can be chosen from borated compounds comprising at least one substituted succinimide group or borated compounds comprising at least two substituted succinimide groups, the succinimide groups possibly being linked at their summit. carrying a nitrogen atom via a polyamine group.
  • substituted succinimide group means a succinimide group of which at least one of the vertices is substituted by a hydrocarbon group comprising from 8 to 400 carbon atoms.
  • the dispersant is chosen from borated compounds comprising at least one succinimide group substituted with a polyisobutene group.
  • the dispersant is chosen from borate compounds comprising at least two succinimide groups each substituted by a polyisobutene group.
  • Mannich bases obtained by polycondensation of phenols substituted with alkyl groups, formaldehyde and primary or secondary amines, can also be used as a dispersant in the lubricating composition according to the invention.
  • the content by weight of dispersant is at least 0.1%, preferably from 0.1% to 10%, advantageously from 1% to 6% relative to the total weight of the mixture. lubricating composition.
  • Anti-wear additives protect rubbing surfaces by forming a protective film adsorbed on these surfaces.
  • antiwear additives Mention may thus be made of phospho-sulfur additives, such as metal alkylthiophosphates, in particular zinc alkylthiophosphates, and more specifically zinc dialkyldithiophosphates (or ZnDTP).
  • the alkyl groups of these zinc dialkyldithiophosphates preferably contain from 1 to 18 carbon atoms.
  • Amine phosphates and polysulphides, in particular sulfur-containing olefins are also commonly used anti-wear additives.
  • Nitrogenous and sulfur-containing anti-wear additives are also encountered, such as, for example, metal dithiocarbamates, in particular molybdenum dithiocarbamates.
  • the preferred antiwear additive is ZnDTP.
  • the content by weight of anti-wear additive in the lubricant according to the invention is from 0.1% to 5%, preferably from 0.2% to 4%, more preferably from 0.2% to 2% relative to to the total weight of the lubricating composition.
  • polymethacrylates for pour point improvers additives, polymethacrylates (PMA) can be used.
  • the lubricating composition according to the invention can also comprise friction modifiers.
  • Friction modifiers help reduce friction between engine parts as much as possible. These additives help prevent engine damage while increasing fuel economy. They can be chosen from organic molecules having a polar function at one end: carboxylic acid and derivatives, glycerol ester, imides, fatty amides, fatty amines and derivatives, phosphoric or phosphonic acid derivatives (phosphite or amine phosphate ). They act by chemical reaction on the metal surface or by absorption at the metal surface (hydrogen bonding). Another type of friction modifier can be selected from organometallic compounds: molybdenum disthiophosphate, molybdenum dithiocarbamate, copper oleate, copper salicylate.
  • the friction modifier can be a solid compound: the most common being molybdenum disulfide MoS2, Boron nitride, polytetrafluoroethylene (PTFE).
  • the content by weight of the friction modifier in the lubricant according to the invention is from 0.1% to 5%, preferably from 0.2% to 4%, more preferably from 0.2% to 2% relative to the weight total lubricant composition.
  • the anti-foam additives can be chosen from polar polymers such as polymethylsiloxanes or polyacrylates. These additives are generally present at a content by weight of 0.01 to 3% relative to the total weight of the lubricating composition.
  • the percentage by weight of fatty amine is between 1 and 15% relative to the total weight of the lubricating composition, preferably between 1 and 10%.
  • the lubricating composition according to the invention allows a fuel gain (Fuel Eco and / or Gas Eco) greater than 0.7% to 75% load, preferably at least 0.8% to 75% load, more preferably at least 0.9% to 75% load.
  • the lubricating composition according to the invention also allows a saving in fuel (Fuel Eco and / or Gas Eco) of at least 0.9% to 100% of load, preferably of at least 1% to 100 % dump.
  • the lubricating composition according to the invention can be advantageously used in 4-stroke or 2-stroke marine engines, preferably 4-stroke, or stationary engines.
  • the lubricating composition is used in fast or semi-fast 4-stroke engines, which operate respectively with distillates and bunker or heavy fuel oils and also with gas. They can also be used as power generation units on board large ships or implemented in stationary engines of diesel-electric power stations.
  • the lubricating composition is suitable for 4-stroke engines as a quill piston engine oil also called TPEO oil.
  • the lubricating composition is suitable for 2-stroke engines as system oil or cylinder oil.
  • the lubricating composition is suitable for stationary engines as a piston oil for a quill piston engine also called TPEO oil.
  • a subject of the invention is also an oil for a cylinder piston engine, also called TPEO oil (trunk piston engine oil in English) comprising a lubricating composition as defined above.
  • TPEO oil tunnel piston engine oil in English
  • the term “piston oil for a quill piston engine, also called TPEO oil according to the invention, is understood to mean any lubricating composition intended for the lubrication of 4-stroke marine engines or stationary engines, in particular of the crankcase and of the cylinders.
  • the invention also relates to a cylinder oil comprising a lubricating composition as defined above.
  • cylinder oil according to the invention is meant any lubricating composition intended for lubricating the cyclinders of 2-stroke marine engines.
  • system oil comprising a lubricating composition as defined above.
  • system oil is understood to mean any lubricating composition intended for lubricating the lower part of 2-stroke marine engines, in particular the crank pins, the camshaft and the crankshaft bearings. System oil also protects the crankcase and cools the piston heads. In addition, it also serves as a hydraulic fluid.
  • a subject of the invention is also the use of a lubricating composition as defined above for the lubrication of 4-stroke or 2-stroke marine engines or of stationary engines.
  • the invention relates to the use of a lubricating composition as defined above for the lubrication of 4-stroke marine engines or of stationary engines. All of the characteristics and preferences presented for the lubricating composition apply to the above use.
  • the invention also relates to the use of a lubricating composition as defined above for reducing the consumption of fuel (fuel oil and / or gas), in particular fuel oil, in an engine, in particular 4-stroke or 2-stroke marine engines. time or stationary engines, while improving engine cleanliness, preferably crankcase cleanliness.
  • the invention relates to the use of a lubricating composition as defined above for reducing fuel consumption, in particular fuel from 4-stroke marine engines or stationary engines, while improving the fuel efficiency.
  • engine cleanliness preferably crankcase cleanliness.
  • the reduction in fuel consumption, in particular fuel oil is evaluated in particular by tests on an engine bench or by evaluation of the traction coefficient on a test machine, in particular on an MTM machine (Mini Traction Machine).
  • Engine cleanliness is assessed in particular by continuous ECBT methods. All of the characteristics and preferences presented for the lubricating composition apply to the above use.
  • the compounds as defined above contained in the lubricating composition according to the invention, and more particularly the olefin copolymer and the styrene / hydrogenated butadiene copolymer can be incorporated into the lubricating composition as separate additives, in particular by separate addition of these in base oils. However, they can also be integrated into a concentrate of additives for a marine lubricating composition or for a stationary engine lubricating composition.
  • composition of the additive concentrate type can be added to at least one base oil to obtain a lubricating composition according to the invention.
  • a method of reducing fuel consumption, in particular fuel oil, and improving engine cleanliness, in particular crankcase cleanliness comprising contacting the lubricating composition as defined above or obtained from concentrate as defined above, with a marine engine or a stationary engine.
  • compositions C 1 , C 2 , L 1 , L 2 and L 3 are obtained from the following components:
  • the olefin copolymer used in the examples comprises 67% by moles of ethylene units and 33% by moles of propylene units, 58% by mass of ethylene units and 42% by mass of propylene units, and has an average molecular mass by mass between 170,000 Da and 200,000 Da. It exhibits a viscosity at 100 ° C of 4500 cSt when diluted to a content of 7% by mass in a group 1 oil.
  • the commercial olefin copolymer is diluted to 5% by mass in a group 1 base oil for compositions L 1 and L 3 .
  • the commercial olefin copolymer is diluted to 2.3% by mass in a group 1 base oil for composition L 2 .
  • the linear hydrogenated styrene-butadiene copolymer used in the examples comprises 82% by moles of hydrogenated butadiene units (including 32% by moles of 1-4 addition butadiene units and 50% by moles of addition butadiene units 1 -2) and 18% by moles of styrene units, 72% by mass of hydrogenated butadiene units (including 28% by mass of addition butadiene units 1-4 and 44% by mass of addition butadiene units 1-2) and 29% by weight of styrene units. It has a mass average molecular mass of between 120,000 Da and 150,000 Da and has a polydispersity index of between 1 and 1.1.
  • Example 1 evaluation of the thermal resistance properties of lubricating compositions according to the invention
  • compositions C 1 (comparative) C 2 (comparative) L 1 (invention) L 2 invention L 3 invention Base oils group 1 64.20 70.20 71.77 - 72.27 Base oils group 2 - - - 65.76 - detergent package 1 - - 16.33 16.33 - detergent package 2 15.80 15.80 - 15.83 Linear hydrogenated styrene / butadiene copolymer (8% by weight in base oil) 20 6.9 6.9 6.9 Olefin copolymer (5% by weight in base oil) - 14 5 - 5 Olefin copolymer (2.3% by weight in base oil) - - - 11.01 - Table Ib Composition C 3 (comparative) SIH 5 OCP 2.5 Detergent 12.7 ZnDTP 0.5 150NS 27.3 330NS 52.0
  • Table II Compositions C 1 (comparative) C 2 (comparative) L 1 (invention) L 2 (invention) L 3 (invention) C 3 (comparative) Kinematic viscosity in mm 2 / s (measured at 100 ° C according to ASTM D7279) 13.95 13.77 11.06 10.8 10.93 14.30 Kinematic viscosity in mm 2 / s (measured at 40 ° C according to ASTM D7279) 87.28 92.24 72.34 66.8 69.69 109.3 Viscosity index (VI) (calculated according to ISO2908) 164.5 152 144 154 147 133 HTHS viscosity (in mPa.s according to ASTM D4683) 3.54 3.54 3.1 3.01 3.07 3.85 BN (measured according to ASTM D2896 in mgKOH / g) 30.1 30.2
  • the thermal resistance of the compositions was therefore evaluated using the continuous ECBT test, by which the mass of deposits (in mg) generated under conditions determined. The lower this mass, the better the thermal resistance and therefore the better the engine cleanliness.
  • This test simulates an engine piston heated to high temperature and onto which lubricant from the crankcase is sprayed.
  • the test uses aluminum beakers that simulate the shape of pistons. These beakers were placed in a glass container, maintained at a controlled temperature by circulating water at 20 ° C.
  • the lubricant was placed in these containers, themselves equipped with a wire brush, partially immersed in the lubricant. This brush was driven in a rotary motion at a speed of 1000 revolutions per minute, which creates a projection of lubricant on the lower surface of the beaker.
  • the beaker was maintained at a temperature of 310 ° C by an electric resistance heater, regulated by a thermocouple.
  • the test lasted 12 hours and the lubricant spray was continuous. This procedure simulates the formation of deposits in the piston-ring assembly. The result is the weight of deposits measured on the beaker.
  • a detailed description of this test is given in the publication entitled “Research and Development of Marine Lubricants in ELF ANTAR France - The relevance of laboratory tests in simulating field performance” by Jean-Philippe ROMAN, MARINE PROPULSION CONFERENCE 2000 - AMSTERDAM - 29-30 MARCH 2000.
  • Table III Compositions C 1 (comparative) C 2 (comparative) L 1 (invention) L 2 (invention) L 3 (invention) C 3 (comparative) Continuous ECBT (mg) (mass deposit beaker) 453 779 471 553 433 600
  • compositions according to the invention exhibit good thermal resistance and thus make it possible to improve engine cleanliness. It should be noted that the lubricating compositions exhibit improved thermal resistance compared to lubricating compositions comprising an olefin copolymer alone and to lubricating compositions comprising an olefin copolymer in combination with a hydrogenated styrene-isoprene copolymer.
  • Example 2 evaluation of the fuel consumption saving properties of lubricating compositions according to the invention
  • compositions were evaluated according to the above method; the results representing the tensile coefficient of each composition are collated in Table IV.
  • Table IV Compositions C 1 (comparative) C 2 (comparative) L 1 (invention) L 2 (invention) L 3 (invention) Coefficient of traction 0.036 0.036 0.032 0.031 0.032
  • the tensile coefficient for the compositions according to the invention is reduced compared to the comparative compositions C 1 and C 2 . It is therefore observed that the combination of an olefin copolymer and of a hydrogenated linear styrene-butadiene copolymer makes it possible to reduce the coefficient of traction and thus makes it possible to reduce friction.
  • Example 3 evaluation of the fuel consumption saving properties of lubricating compositions according to the invention
  • compositions L 1 , L 2 and L 3 make it possible, in the lubricating compositions L 1 , L 2 and L 3 , to reduce the consumption of fuel oil by more than 1% at 75 % filler but also at 100% relative to the reference oil unlike composition C 3 (comparative) comprising the combination of a styrene / hydrogenated isoprene copolymer and an olefin copolymer which only makes it possible to reduce by 0 , 7% fuel oil consumption at 75% load compared to the reference oil.
  • the above examples show that the lubricating compositions according to the invention exhibit both good thermal resistance, and therefore make it possible to improve engine cleanliness, while significantly reducing fuel consumption, in particular fuel oil.

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Claims (10)

  1. Schmiermittelzusammensetzung, die enthält:
    - mindestens ein Basisöl;
    - mindestens ein Detergens, ausgewählt aus den Alkali- oder Erdalkalimetallsalz-Detergenzien von Carboxylat, Sulfonat, Salicylat oder Phenat mit einem Gehalt von 10 bis 30 Gew.-%, bezogen auf das Gesamtgewicht der Schmiermittelzusammensetzung;
    - 0,01 bis 5 Gew.-%, bezogen auf das Gesamtgewicht der Schmiermittelzusammensetzung, mindestens eines Olefin-Copolymers;
    - 0,01 bis 8 Gew.-%, bezogen auf das Gesamtgewicht der Schmiermittelzusammensetzung, mindestens eines hydrierten und linearen Styrol/Butadien-Copolymers.
  2. Zusammensetzung nach Anspruch 1, bei der das Detergens ausgewählt ist aus Carboxylat-, Sulfonat- oder Phenat-Detergenzien.
  3. Schmiermittelzusammensetzung nach Anspruch 1 oder 2, bei der in dem hydrierten und linearen Styrol/Butadien-Copolymer der Gehalt an hydrierten Butadieneinheiten 50 bis 98 Mol-%, vorzugsweise 60 bis 98 %, besonders bevorzugt 70 bis 97 %, bezogen auf die Molzahl des hydrierten und linearen Styrol/Butadien-Copolymers, beträgt.
  4. Schmiermittelzusammensetzung nach einem beliebigen der Ansprüche 1 bis 3, bei der der Gewichtsgehalt an hydriertem und linearem Styrol/Butadien-Copolymer 0,1 bis 5 Gew.-%, bezogen auf das Gesamtgewicht der Schmiermittelzusammensetzung, vorzugsweise 0,1 bis 2 %, vorteilhafterweise 0,1 bis 1 %, beträgt.
  5. Schmiermittelzusammensetzung nach einem beliebigen der Ansprüche 1 bis 4, bei der das Olefin-Copolymer ein Ethylen-Propylen-Copolymer ist.
  6. Schmiermittelzusammensetzung nach Anspruch 5, bei der das Ethylen/Propylen-Copolymer einen Gehalt an Ethyleneinheiten von 30 bis 80 Gew.-%, bezogen auf das Gewicht des Olefin-Copolymers, vorzugsweise von 30 bis 70 %, besonders bevorzugt von 40 bis 70 %, aufweist.
  7. Schmiermittelzusammensetzung nach einem beliebigen der Ansprüche 1 bis 6, bei der die Menge an Olefin-Copolymer 0,01 bis 2 Gew.-%, bezogen auf das Gesamtgewicht der Schmiermittelzusammensetzung, vorzugsweise 0,01 bis 1 %, noch bevorzugter 0,1 bis 1 % beträgt.
  8. Schmiermittelzusammensetzung nach einem beliebigen der Ansprüche 1 bis 7, bei der die Menge an Detergenzien 10 bis 25 Gew.-%, bezogen auf das Gesamtgewicht der Schmiermittelzusammensetzung, und vorzugsweise 10 bis 20% beträgt.
  9. Verwendung einer Schmiermittelzusammensetzung nach einem der Ansprüche 1 bis 8 zur Schmierung von 4-Takt- oder 2-Takt-, vorzugsweise 4-Takt-Schiffsmotoren, oder stationären Motoren.
  10. Verwendung einer Schmiermittelzusammensetzung nach einem beliebigen der Ansprüche 1 bis 8 zur Verringerung des Kraftstoffverbrauchs bei gleichzeitiger Verbesserung der Sauberkeit eines 4-Takt- oder 2-Takt-, vorzugsweise 4-Takt-Schiffsmotors, oder stationären Motors.
EP17780738.5A 2016-10-07 2017-10-06 Schmierstoffzusammensetzung für einen schiffsmotor oder einen stationären motor Active EP3523407B1 (de)

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FR1659706A FR3057273B1 (fr) 2016-10-07 2016-10-07 Composition lubrifiante pour moteur marin ou moteur stationnaire
PCT/EP2017/075551 WO2018065606A1 (fr) 2016-10-07 2017-10-06 Composition lubrifiante pour moteur marin ou moteur stationnaire

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DK3798287T3 (da) * 2019-09-27 2023-10-09 Ab Nanol Tech Oy Anvendelse af organometalliske saltsammensætninger til at mindske dannelsen af hvide ætsningsrevner
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KR102489074B1 (ko) 2023-01-16
KR20190055817A (ko) 2019-05-23
CN109804053A (zh) 2019-05-24
TW201823440A (zh) 2018-07-01
EP3523407A1 (de) 2019-08-14
RU2019110090A (ru) 2020-10-05
JP2019530783A (ja) 2019-10-24
FR3057273A1 (fr) 2018-04-13
WO2018065606A1 (fr) 2018-04-12
AR109896A1 (es) 2019-02-06
US11572526B2 (en) 2023-02-07
JP7041131B2 (ja) 2022-03-23
BR112019006244A2 (pt) 2019-06-18
FR3057273B1 (fr) 2020-02-21
US20200040276A1 (en) 2020-02-06

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