EP4555051A1 - Composition lubrifiante à base de diester - Google Patents
Composition lubrifiante à base de diesterInfo
- Publication number
- EP4555051A1 EP4555051A1 EP23736152.2A EP23736152A EP4555051A1 EP 4555051 A1 EP4555051 A1 EP 4555051A1 EP 23736152 A EP23736152 A EP 23736152A EP 4555051 A1 EP4555051 A1 EP 4555051A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- diester
- additives
- propanediol
- carbon atoms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
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- 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
- C10M129/74—Esters of polyhydroxy compounds
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds 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
- 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
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- 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
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- 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
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- 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
- C10N2030/54—Fuel economy
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- 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
- C10N2030/64—Environmental friendly compositions
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- 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
Definitions
- the present invention relates to the field of compositions for lubricating and/or cooling parts of mobile or stationary systems, such as heavy or light vehicles, public works machinery, or energy storage devices. It concerns more particularly the use of new compounds of the diester type in cooling and/or lubricating compositions, particularly used in heavy or light vehicles, public works machinery, or energy storage devices.
- Lubricating compositions also called “lubricants” are commonly used in the various components of motor vehicles for the main purposes of reducing the friction forces between the different metal parts moving in these components, in particular the engine, the transmission and the hydraulic circuit. They are also effective in preventing premature wear or even damage to these parts, and in particular to their surface.
- a lubricating composition is conventionally composed of a base oil to which are generally associated several additives dedicated to stimulating the lubricating performance of the base oil, such as for example friction modifier additives, but also to providing additional performance.
- Lubricating compositions for transmissions must meet numerous requirements, particularly with regard to the strict specifications imposed by automobile manufacturers. In particular, they must have satisfactory properties in terms of viscosity, viscosity-temperature resistance, cold performance, etc. adapted to their implementation at the level of a transmission member, in particular at the level of the gearbox or the bridges, in a vehicle.
- WO 2010/038147 proposes, to generate fuel savings, to formulate lubricating compositions for gearboxes, using at least 30% by weight of a or several methyl esters of fatty acids of formula RCOOCH3, where R is a paraffinic or olefinic group containing from 11 to 23 carbon atoms, in combination with one or more anti-wear and/or extreme pressure additives phosphorus, sulfur or phosphosulfur and polyalphaolefins.
- the present invention aims to provide a new lubricating composition, having improved properties in terms of friction reduction or cooling properties.
- the present invention also aims to propose a new lubricating composition, having improved properties in terms of fuel economy (“Fuel Eco” properties), while satisfying the properties required for its implementation for the lubrication of transmission components of motor vehicles, light or heavy, for example gearbox and axles, and in particular having good performance in terms of cold properties.
- Fuel Eco Fuel economy
- the subject of the present invention is thus a lubricating composition
- a lubricating composition comprising: One or more diesters, each of said diesters being formed between: o a diol chosen from 1,2-propanediol, 1,2-decanediol and 1,3-diol comprising from 3 to 10 carbon atoms, and o two monocarboxylic acids, identical or different, comprising a linear or branched hydrocarbon chain comprising from 4 to 10 carbon atoms, and at least one base oil distinct from the diester and/or at least one additive distinct from the diester, said additive being chosen from friction modifier additives, anti-wear additives, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, point lowering additives (PPD), dispersants, anti-foaming agents, thickeners, corrosion inhibitors, copper passivating agents, and mixtures thereof.
- a diol chosen from 1,2-propanediol, 1,2-de
- the lubricating composition according to the invention comprises: from 5 to 95% by weight, preferably from 10 to 90% by weight, more preferably from 20 to 80% by weight, even more preferably from 30 to 70% by weight , or even from 40 to 60% by weight of said diester(s), from 1 to 95% by weight, preferably from 10 to 90% by weight, more preferably from 20 to 80% by weight, even more preferably from 30 to 70% by weight, or even from 40 to 60% by weight of one or more base oils different from said diesters, optionally from 0.01 to 20% by weight, preferably from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight , even more preferably from 0.5 to 7% by weight, or even from 1 to 5% by weight of one or more additives distinct from the diester and distinct from the base oil(s), relative to the total mass of the composition.
- the lubricating composition according to the invention comprises: at least 5% by weight, preferably at least 10% by weight, preferably at least 30% by weight, preferably at least 50% by weight, more preferably at least 70% by weight, or even at least 90% by weight, of one or more diesters; from 0.01 to 20% by weight, preferably from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight, even more preferably from 0.5 to 7% by weight, or even from 1 to 5% mass, of one or more additives chosen from friction modifier additives, anti-wear additives, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, additives pour point depressants (PPDs), dispersants, antifoaming agents, thickeners, corrosion inhibitors, copper passivating agents, and mixtures thereof; And
- said diester contains from 13 to 25 carbon atoms, preferably from 13 to 24 carbon atoms.
- said diester has a kinematic viscosity at 100°C ranging from 1 to 6 mm 2 /s, preferably ranging from 1 to 4 mm 2 /s.
- the diol is chosen from 1,2-propanediol, 1,2-decanediol and 1,3-alkanediol containing from 3 to 7 carbon atoms, preferably from 1,2-propanediol and 1, 3-propanediol, more preferably the diol is 1,2-propanediol.
- said monocarboxylic acids identical or different, comprise a linear hydrocarbon chain comprising from 4 to 10 carbon atoms, preferably from 5 to 9 carbon atoms.
- said diester(s) is(are) chosen from: a diester formed from 1,2-decanediol and two heptanoic acids, a diester formed from 1,2-decanediol and two pentanoic acids, a diester formed from 1,2-propanediol and two heptanoic acids, a diester formed from 1,2-propanediol and two nonanoic acids, a diester formed from 1,3-propanediol and two heptanoic acids, a diester formed from 1,2-propanediol and two octanoic acids, a diester formed from 1,2-propanediol and two decanoic acids, a diester formed from 1,2-propanediol and an octanoic acid and a decanoic acid, and mixtures thereof.
- the lubricating composition according to the invention comprises:
- two monocarboxylic acids identical or different, comprising a linear or branched hydrocarbon chain comprising 4 to 10 carbon atoms, o a diester formed from 1,2-propanediol and two heptanoic acids, o a diester formed from 1,2-propanediol and two octanoic acids, o a diester formed from 1,2-propanediol and two decanoic acids, o a diester formed from 1,2-propanediol and an octanoic acid and a decanoic acid, and mixtures thereof, and at least one base oil distinct from the diester and/or at least one additive distinct from the diester, said additive being chosen from friction modifier additives, anti-wear additives, extreme pressure additives , detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents, thickeners, corrosion inhibitors, anti-f
- the invention also relates to the use of at least one diester in a lubricating composition, said diester being formed between: a diol chosen from 1,2-propanediol, 1,2-decanediol and 1,3-diol comprising from 3 to 10 carbon atoms, and two monocarboxylic acids, identical or different, comprising a linear or branched hydrocarbon chain comprising from 4 to 10 carbon atoms, said lubricating composition further comprising at least one base oil distinct from the diester and/or at least one additive distinct from the diester, said additive being chosen from friction modifier additives, anti-wear additives, extreme pressure additives, detergents , antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents, thickeners, corrosion inhibitors, copper passivating agents , and their mixtures.
- a diol chosen from 1,2-propanediol, 1,2-decanedio
- said at least one diester is used to lubricate and/or cool at least one element of a mobile or stationary system, chosen for example from a heavy or light vehicle, a public works machine, and a energy storage system.
- the mobile system is a vehicle, the lubricating composition being used to reduce the fuel consumption of a vehicle equipped with a transmission member, in particular a gearbox and/or a bridge, lubricated with means of this composition.
- a transmission member in particular a gearbox and/or a bridge
- the diester used in the use according to the invention is as defined in the context of the lubricating composition according to the invention and/or the lubricating composition used in the use according to the invention is such as defined in the context of the lubricating composition according to the invention.
- the invention relates to the use of at least one diester in a lubricating composition for lubricating and/or cooling at least one element of a mobile or stationary system chosen from a public works machine and a energy storage system, said diester being formed between:
- a diol chosen from 1,2-propanediol, 1,2-decanediol and 1,3-diol comprising 3 to 10 carbon atoms, and two monocarboxylic acids, identical or different, comprising a linear or branched hydrocarbon chain comprising from 4 to 10 carbon atoms
- said lubricating composition further comprising at least one base oil distinct from the diester and/or at least one additive distinct from the diester, said additive being chosen from friction modifier additives, anti- wear, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents, thickeners, corrosion inhibitors, passivating agents copper, and their mixtures.
- friction modifier additives anti- wear, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents, thickeners,
- the invention relates to the use of at least one diester in a lubricating composition for lubricating and/or for cooling at least one element of a mobile system, said mobile system being a vehicle, said diester being formed between:
- said lubricating composition further comprising at least one base oil distinct from the diester and/or at least one additive distinct from the diester, said additive being chosen from friction modifier additives, anti- wear, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents, thickeners, corrosion inhibitors, copper passivating agents, and mixtures thereof, said lubricating composition being used to reduce the fuel consumption of a vehicle equipped with a transmission member, in particular a gearbox and/or a bridge, lubricated using this composition.
- a transmission member in particular a gearbox and/or a bridge
- the invention relates to a lubricating composition
- a lubricating composition comprising: at least one diester formed between: o a diol chosen from 1,2-propanediol, 1,2-decanediol and 1,3-diol comprising from 3 to 10 carbon atoms, and o two monocarboxylic acids, identical or different, comprising a linear hydrocarbon chain or branched comprising from 4 to 10 carbon atoms, and at least one ingredient chosen from base oils distinct from the diester, additives distinct from the diester, and mixtures thereof, when present said additive being chosen from friction modifier additives , anti-wear additives, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents , thickeners, corrosion inhibitors, copper passivators, and mixtures thereof.
- a diol chosen from 1,2-propanediol, 1,2-decane
- the lubricating composition according to the invention may comprise one or more diesters, each of said diesters being formed between: o a diol chosen from 1,2-propanediol, 1,2-decanediol and 1,3-diol comprising from 3 to 10 carbon atoms, and o two monocarboxylic acids, identical or different, comprising a linear or branched hydrocarbon chain comprising 5 to 10 carbon atoms.
- the mixture of diesters falling within the scope of the present invention is likely to comprise:
- the diester(s) used according to the invention is(are) formed between a diol and two monocarboxylic acids.
- diester formed between a diol and two monocarboxylic acids within the meaning of the present invention, is meant a compound obtained by two esterification reactions, each esterification reaction being carried out between one of the two alcohol functions of the diol and the acid function of one of the two monocarboxylic acids.
- the diester contains from 13 to 25 carbon atoms, preferably from 15 to 24 carbon atoms.
- the diol used in the invention is among 1,2-propanediol, 1,2-decanediol and 1,3-diol containing 3 to 10 carbon atoms.
- diol we mean a compound comprising (exactly) two hydroxyl functions (-OH).
- 1,3-diol comprising from X to Y carbon atoms
- hydrocarbon chain within the meaning of the invention, we mean an alkyl or alkylene chain, linear or branched, saturated or unsaturated.
- the hydrocarbon chain can optionally be interrupted by one or more heteroatoms, in particular by one or more oxygen atoms.
- the hydrocarbon chain is an alkyl or alkylene chain, linear or branched, saturated or unsaturated, consisting of carbon and hydrogen atoms.
- the 1,3-diol comprising 3 to 10 carbon atoms is chosen from 1,3-alkanediol comprising 3 to 10 carbon atoms.
- 1,3-alkanediol comprising from X to Y carbon atoms
- a diol whose alcohol functions are located respectively in position 1 and in position 3 of an alkane chain comprising from
- the diol is chosen from 1,2-propanediol, 1,2-decanediol and 1,3-diol comprising from 3 to 7 carbon atoms, preferably from 1,2-propanediol and 1,3-alkanediol containing 3 to 7 carbon atoms, more preferably among 1,2-propanediol and 1,3-propanediol, advantageously the diol is 1,2-propanediol.
- the diol used according to the invention may be available commercially or synthesized according to any method known to those skilled in the art.
- the diol used according to the invention comprises a carbon content of biological origin of at least 60% by mass, preferably at least 70% by mass, more preferably at least 80%. by mass, even more preferably at least 90% by mass, relative to the total mass of the carbon atoms of the diol.
- the carbon content of biological origin can be measured according to the ASTM D6866 standard.
- the diester used according to the invention is obtained from two identical or different monocarboxylic acids.
- monocarboxylic acid is meant a compound comprising a single carboxyl function (-COOH).
- the carboxylic acids used to form a diester of the invention are chosen from monocarboxylic acids, comprising a linear or branched hydrocarbon chain comprising from 4 to 10 carbon atoms, preferably from 5 to 9 carbon atoms, more preferably from 5 to 8 carbon atoms.
- the linear or branched hydrocarbon chain of the monocarboxylic acids is saturated.
- the monocarboxylic acids identical or different, comprise a linear hydrocarbon chain comprising from 5 to 10 carbon atoms, preferably from 5 to 9 carbon atoms, more preferably from 5 to 8 carbon atoms.
- the monocarboxylic acids identical or different, comprise a linear and saturated hydrocarbon chain comprising from 5 to 10 carbon atoms, preferably from 5 to 9 carbon atoms, more preferably from 5 to 8 carbon atoms .
- the monocarboxylic acids used according to the invention may be commercially available or synthesized according to any method known to those skilled in the art.
- the monocarboxylic acids used according to the invention comprise a carbon content of biological origin of at least 60% by mass, preferably at least 70% by mass, more preferably at least 80% by mass. % by mass, even more preferably at least 90% by mass, relative to the total mass of the carbon atoms of the monocarboxylic acids.
- the diester used according to the invention is saturated.
- saturated diester within the meaning of the invention is meant a diester comprising saturated hydrocarbon chains.
- the diol used according to the invention comprises a saturated hydrocarbon chain and the monocarboxylic acids used according to the invention each comprise a saturated hydrocarbon chain, preferably, said hydrocarbon chain consists of atoms carbon and hydrogen.
- the diester used in the invention is a branched diester.
- branched diester within the meaning of the invention is meant a diester comprising a branched hydrocarbon chain which can be located between the two ester functions and/or at one or both ends of the diester.
- the diester used in the invention is saturated and branched.
- the diester used according to the invention has a kinematic viscosity, measured at 100°C according to the ASTM D445 standard, ranging from 1 to 6 mm 2 /s, preferably from 1 to 4 mm 2 / s.
- the diester used according to the invention has a kinematic viscosity, measured at 40°C according to the ASTM D445 standard, ranging from 2 to 20 mm 2 /s, preferably from 3 to 10 mm 2 / s. It is understood that the definitions given above for carboxylic acid and alcohol may be combined, where possible, to define other particular embodiments.
- a diester used according to the invention may correspond more particularly to one of the following formulas (I), (II) or (III): [Chem 1] in which :
- R 1 represents a hydrocarbon chain, linear or branched, saturated or unsaturated, preferably saturated, having from 3 to 9 carbon atoms, preferably from 4 to 8 carbon atoms, preferably from 5 to 7 carbon atoms, said hydrocarbon chain being optionally interrupted by one or more heteroatoms, such as oxygen atoms, preferably the hydrocarbon chain consists of carbon and hydrogen atoms;
- R 2 represents a hydrocarbon chain, linear or branched, saturated or unsaturated, preferably saturated, having from 3 to 9 carbon atoms, preferably from 4 to 8 carbon atoms, preferably from 5 to 7 carbon atoms, said hydrocarbon chain being optionally interrupted by one or more heteroatoms, such as oxygen atoms, preferably the hydrocarbon chain is made up of carbon and hydrogen atoms.
- the diester(s) corresponding to formula (I), (II) or (III) contain from 13 to 25 carbon atoms, preferably from 15 to 24 carbon atoms.
- R 1 and R 2 may be identical or different.
- the diester(s) used according to the invention is(are) chosen from: a diester formed from 1,2-decanediol and two heptanoic acids, a diester formed from 1,2-decanediol and two pentanoic acids, a diester formed from 1,2-propanediol and two heptanoic acids, a diester formed from 1,2-propanediol and two nonanoic acids, a diester formed from 1,3-propanediol and two heptanoic acids, a diester formed from 1,2-propanediol and two octanoic acids, a diester formed from 1,2-propanediol and two decanoic acids, a diester formed from 1,2-propanediol and a mixture of acids including octanoic acid and decanoic acid, and mixtures thereof.
- the diesters according to the invention can be prepared according to synthesis methods known to those skilled in the art. These synthesis methods more particularly implement two esterification reactions, each esterification reaction being implemented between an alcohol function of the diol and the acid function of the monocarboxylic acid.
- a diester according to the invention can be in the form of a mixture of at least two diesters according to the invention, in particular as defined above.
- the diester used according to the invention comprises a carbon content of biological origin of at least 60% by mass, preferably at least 70% by mass, more preferably at least 80%. by mass, even more preferably at least 90% by mass, relative to the total mass of the carbon atoms of the diester.
- the carbon content of biological origin can be measured according to the ASTM D6866 standard.
- the diester or mixture of diesters according to the invention may represent at least 5% by weight of the composition according to the invention, preferably at least 10% by weight, preferably at least 30% by weight, more preferably at least 50% by weight. , even more preferably at least 70% by weight, in particular at least 80% by weight, more particularly at least 90% by weight, or even at least 95% by weight, of the total mass of the composition according to the invention.
- the diester(s) according to the invention can be used with one or more additional base oils (also called co-bases).
- the composition will comprise: from 5 to 95% by weight, preferably from 5 to 50% by weight, more preferably 10 to 40% by weight, of the diester(s) according to the invention, and from 5 to 95% by mass, preferably from 50 to 95% by mass, preferably from 60 to 90% by mass, of one or more base oils different from the diesters according to the invention, relative to the mass total of diester(s) and base oils other than diesters.
- a lubricating composition according to the invention may comprise at least 30% by weight of a diester or mixture of diesters according to the invention, more particularly between 50% and 99.5% by weight, preferably between 70%. and 99% by weight, more preferably between 80% and 99% by weight, or even between 80% and 95% by weight, relative to the total mass of said composition.
- a lubricating composition according to the invention can be formed at more than 95% by weight, in particular at more than 98% by mass, of one or more diesters according to the invention.
- the composition according to the invention is a composition comprising 100% by mass of a mixture of diester(s) defined in the invention and additional base oil(s). ), preferably in a proportion such that the composition comprises: from 5 to 95% by weight, preferably from 5 to 50% by weight, more preferably 10 to 40% by weight, of the diester(s) according to the invention, and from 5 to 95% by mass, preferably from 50 to 95% by mass, preferably from 60 to 90% by mass, of one or more base oils different from the diesters according to the invention, relative to the mass total composition.
- This embodiment is particularly advantageous when the composition is used for cooling, as a cooling fluid.
- the lubricating composition according to the invention may comprise, in addition to one or more diesters according to the invention, one or more base oils distinct from the diesters according to the invention, called “additional base oil”.
- Said base oil(s), possibly present in the lubricating composition according to the invention, are chosen adequately, with regard to their compatibility with said diester(s) used according to the invention.
- It can be a mixture of several base oils, for example a mixture of two, three or four base oils.
- the base oil or mixture of additional base oils, used in the lubricating composition according to the invention can have a kinematic viscosity, measured at 100 ° C according to the ASTM D445 standard, ranging from 1, 5 to 8 mm 2 /s, in particular 1.5 to 6.1 mm 2 /s, more particularly 1.5 to 4.1 mm 2 /s, even more particularly 1.5 to 2.1 mm 2 /s.
- the base oils can be chosen from oils of mineral or synthetic origin belonging to groups I to V according to the classes defined in the API classification (or their equivalents according to the ATIEL classification) and presented in table 1 below or their mixtures.
- Mineral base oils include all types of base oils obtained by atmospheric and vacuum distillation of crude oil, followed by refining operations such as solvent extraction, desalphating, solvent dewaxing, hydrotreating, hydrocracking, hydroisomerization and hydrofinishing .
- Blends of synthetic and mineral oils, which can be biosourced, can also be used.
- the base oils can also be chosen from synthetic oils, such as certain esters of carboxylic acids and alcohols, distinct from Tester defined according to the invention, from polyalphaolefins (PAO), and from polyalkylene glycol (PAG) obtained by polymerization or copolymerization of alkylene oxides comprising from 2 to 8 carbon atoms, in particular from 2 to 4 carbon atoms.
- synthetic oils such as certain esters of carboxylic acids and alcohols, distinct from Tester defined according to the invention, from polyalphaolefins (PAO), and from polyalkylene glycol (PAG) obtained by polymerization or copolymerization of alkylene oxides comprising from 2 to 8 carbon atoms, in particular from 2 to 4 carbon atoms.
- the PAOs used as base oils are for example obtained from monomers comprising 4 to 32 carbon atoms, for example from octene or decene.
- the weight average molecular weight of PAO can vary quite widely. Preferably, the mass average molecular weight of the PAO is less than 600Da.
- the mass average molecular mass of the PAO can also range from 100 to 600 Da, from 150 to 600 Da, or even from 200 to 600 Da.
- the PAOs implemented in the context of the invention having a kinematic viscosity, measured at 100 ° C according to the ASTM D445 standard, ranging from 1.5 to 8 mm 2 /s are sold commercially by Ineos under the brands Durasyn® 162, Durasyn® 164, Durasyn® 166 and Durasyn® 168.
- the additional base oil or oils are chosen from polyalphaolefins (PAO).
- a composition according to the invention may comprise from 5 to 95% by weight, preferably from 50 to 95% by weight, more preferably from 60 to 90% by weight, of one or more base oils different from the diesters according to the invention, relative to the total mass of said composition.
- the lubricating composition according to the invention may optionally also comprise one or more additives known to those skilled in the art in the field of lubrication, in particular for vehicle transmissions, in particular for transmissions of light or heavy vehicles.
- additives may be chosen in particular from friction modifier additives, anti-wear additives, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant additives. (PPD), dispersants, anti-foaming agents, thickeners, corrosion inhibitors, copper passivating agents, and mixtures thereof.
- the lubricating composition according to the invention may further comprise one or more additives chosen from antioxidants, anti-foaming agents, pour point improvers and anti-corrosion agents. It is understood that the nature and quantity of additives used are chosen so as not to affect the properties of the lubricating composition conferred by the diester according to the invention.
- additives can be introduced individually and/or in the form of a mixture like those already available for sale for commercial lubricant formulations for vehicle engines, with a performance level as defined by the ACEA ( Association of European Automobile Manufacturers) and/or the API (American Petroleum Institute), well known to those skilled in the art.
- ACEA Association of European Automobile Manufacturers
- API American Petroleum Institute
- Said additive(s) may be present in the lubricating composition according to the invention in a content less than or equal to 10% by weight, in particular less than or equal to 5% by weight, and more particularly ranging from 0.01 to 3% by weight, for example relative to the total mass of said composition.
- a lubricating composition according to the invention can thus comprise at least one antioxidant additive.
- the invention thus relates, according to one of its aspects, to a lubricating composition
- a lubricating composition comprising (i) at least one diester as defined above, and (ii) at least one antioxidant additive.
- the antioxidant additive generally makes it possible to delay the degradation of the composition in service. This degradation can notably result in the formation of deposits, the presence of sludge or an increase in the viscosity of the composition.
- Antioxidant additives act in particular as free radical inhibitors or hydroperoxide destroyers.
- antioxidant additives can generate ash.
- Phenolic antioxidant additives can be ash-free or in the form of neutral or basic metal salts.
- the antioxidant additives may in particular be chosen from sterically hindered phenols, sterically hindered phenol esters and sterically hindered phenols comprising a thioether bridge, diphenylamines, diphenylamines substituted by at least one C1-C12 alkyl group, N,N'-dialkyl-aryl-diamines and their mixtures.
- the sterically hindered phenols are chosen from compounds comprising a phenol group of which at least one vicinal carbon of the carbon carrying the alcohol function is substituted by at least one C1-C10 alkyl group, preferably a CI-C6 alkyl group. , preferably a C4 alkyl group, preferably the tert-butyl group.
- Amino compounds are another class of antioxidant additives that can be used, possibly in combination with phenolic antioxidant additives.
- amino compounds are aromatic amines, for example aromatic amines of formula NR 5 R 6 R 7 in which 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 in which R 8 represents an alkylene group or an alkenylene group, R 9 represents an alkyl group, a alkenyl group or an aryl group and z represents 0, 1 or 2.
- Sulfurized alkyl phenols or their alkali and alkaline earth metal salts can also be used as antioxidant additives.
- a lubricating composition comprises at least one ash-free antioxidant additive.
- Said additive(s) can be used, in a lubricating composition according to the invention, at a rate of 0.1 to 2% by weight, relative to the total mass of the composition.
- a lubricating composition according to the invention may comprise at least one anti-wear additive, an extreme pressure additive or mixtures thereof.
- Anti-wear additives and extreme pressure additives protect rubbing surfaces by forming a protective film adsorbed on these surfaces.
- the anti-wear additives are chosen from phosphosulfur additives such as metal alkylthiophosphates, in particular zinc alkylthiophosphates, and more specifically zinc dialkyldithiophosphates or ZnDTP.
- phosphosulfur additives such as metal alkylthiophosphates, in particular zinc alkylthiophosphates, and more specifically zinc dialkyldithiophosphates or ZnDTP.
- the preferred compounds are of formula Zn((SP(S)(OQ 2 )(OQ 3 ))2, in which Q 2 and Q 3 , identical or different, represent independently an alkyl group, preferably an alkyl group comprising from 1 to 18 carbon atoms.
- the lubricating composition according to the invention is free from phosphite type esters containing sulfur of formula
- R is a C4 to C20 hydrocarbon group containing sulfur and R 1 is hydrogen, a C4 to C20 hydrocarbon group or a C4 to C20 hydrocarbon group containing sulfur.
- Amine phosphates are also anti-wear additives which can be used in a composition according to the invention.
- the phosphorus provided by these additives can act as a poison in the catalytic systems of automobiles because these additives generate ash.
- additives which do not provide phosphorus such as, for example, polysulphides, in particular sulfur-containing olefins.
- a lubricating composition may comprise from 0.01 to 6% by weight, preferably from 0.05 to 4% by weight, more preferably from 0.1 to 2% by weight of anti-wear additives and extreme pressure additives, by weight per relative to the total mass of composition.
- a lubricating composition according to the invention may further comprise an anti-foaming agent.
- the anti-foaming agent can be chosen from silicones.
- a lubricating composition may comprise from 0.01 to 2% by weight or from 0.01 to 5% by weight, preferably from 0.1 to 1.5% by weight or from 0.1 to 2% by weight of antifoaming agent, relative to to the total mass of the composition.
- a lubricating composition according to the invention may comprise at least one friction modifier additive.
- Friction modifier additives make it possible to limit friction by forming monolayers adsorbed on the surfaces of metals in contact with them. They can be chosen from compounds providing metallic elements and compounds free of ash. Among the compounds providing metallic elements, we can cite transition metal complexes such as Mo, Sb. Sn, Fe, Cu, Zn whose ligands can be hydrocarbon compounds comprising oxygen, nitrogen, sulfur or phosphorus atoms.
- the ash-free friction modifier additives are generally of organic origin and can be chosen from esters of fatty acids and polyols, distinct from the monoester required according to the invention, alkoxylated amines, alkoxylated fatty amines, fatty epoxides.
- the fatty compounds comprise at least one hydrocarbon group comprising from 10 to 24 carbon atoms.
- the molybdenum-based compounds can be chosen from molybdenum dithiocarbamates (Mo-DTC), molybdenum dithiophosphates (Mo-DTP), and mixtures thereof.
- a lubricating composition may in particular comprise a molybdenum content of between 1000 and 2500 ppm.
- a lubricating composition may comprise from 0.01 to 5% by weight, more particularly from 0.1 to 2% by weight or even more particularly from 0.1 to 1.5% by weight of friction modifier additive, relative to the mass total composition.
- a lubricating composition according to the invention preferably comprises less than 1.5% by weight of molybdenum, more preferably less than 1% by weight, relative to the total mass of the composition, or is even free from molybdenum.
- a lubricating composition according to the invention may comprise at least one detergent additive.
- Detergent additives generally help reduce the formation of deposits on the surface of metal parts by dissolving secondary oxidation and combustion products.
- the detergent additives which can be used in a lubricating composition are generally known to those skilled in the art.
- the detergent additives can be anionic compounds comprising a lipophilic hydrocarbon group and a hydrophilic head.
- the associated cation may be a metallic cation of an alkali or alkaline earth metal.
- the detergent additives are preferably chosen from alkali metal or alkaline earth metal salts of carboxylic acids, sulfonates, salicylates, naphthenates, as well as phenate salts.
- the alkali and alkaline earth metals are preferably calcium, magnesium, sodium or barium.
- metal salts generally include the metal in stoichiometric quantity or in excess, therefore in quantity greater than the narrow stoichiometric quantity.
- overbased detergent additives the excess metal providing the overbased character to the detergent additive is then generally in the form of a metal salt insoluble in oil, for example a carbonate, a hydroxide, an oxalate, an acetate, a glutamate, preferably a carbonate .
- a lubricating composition can for example comprise 2 to 4% by weight of detergent additive, relative to the total mass of the composition.
- a lubricating composition may also comprise at least one pour point depressant additive (also called “PPD” agent for “Pour Point Depressant” in English).
- PPD pour point depressant additive
- pour point depressant additives By slowing the formation of paraffin crystals, pour point depressant additives generally improve the cold behavior of the composition.
- pour point depressant additives mention may be made of polyalkyl methacrylates, polyacrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalenes, alkylated polystyrenes.
- a lubricating composition according to the invention may comprise from 0.1% to 2%, preferably from 0.2% to 1% by weight of pour point depressant additive(s), relative to the mass. total composition. Also, a lubricating composition may comprise at least one dispersing agent.
- the dispersing agent can be chosen from Mannich bases, succinimides and their derivatives, such as polyisobutylene succinic anhydride derivatives.
- a lubricating composition can for example comprise from 0.2 to 10% by weight of dispersing agent, relative to the total mass of the composition.
- a lubricating composition according to the invention may also comprise at least one additive improving the viscosity index (VI).
- Viscosity index improvers in particular viscosity index improving polymers, make it possible to guarantee good cold resistance and minimum viscosity at high temperatures.
- polymers improving the viscosity index mention may be made of polymer esters, homopolymers or copolymers, hydrogenated or non-hydrogenated, of styrene, butadiene and isoprene, homopolymers or copolymers of olefin, such as such as ethylene or propylene, polyacrylates and polymethacrylates (PMA), preferably olefin homopolymers or copolymers, such as ethylene or propylene.
- polymer esters homopolymers or copolymers, hydrogenated or non-hydrogenated, of styrene, butadiene and isoprene
- olefin such as such as ethylene or propylene
- PMA polymethacrylates
- a lubricating composition according to the invention may comprise from 1 to 15% by weight of additive(s) improving the viscosity index, preferably from 5% to 10% by weight, relative to the total mass of the composition. lubricating.
- a lubricating composition may also comprise at least one antifoam additive, for example chosen from polar polymers such as polymethylsiloxanes or polyacrylates.
- a lubricating composition according to the invention may comprise from 0.01 to 3% by weight of anti-foam additive(s), relative to the total mass of the lubricating composition.
- It may also include at least one anti-corrosion agent or copper passivating agent, for example compounds such as polyisobutenes succinic anhydrides, thiadiazole sulfonates or mercaptobenzothiazoles. They are typically present in a lubricating composition according to the invention at contents of between 0.01% and 1% by weight, relative to the total mass of the composition.
- at least one anti-corrosion agent or copper passivating agent for example compounds such as polyisobutenes succinic anhydrides, thiadiazole sulfonates or mercaptobenzothiazoles.
- a lubricating composition according to the invention comprises one or more additives chosen from viscosity index improving agents, pour point lowering agents, anti-wear agents and antioxidant agents.
- a lubricating composition according to the invention comprises, or even is formed of (i) at least one diester according to the invention and (ii) at least one additive chosen from antioxidants, viscosity index improving additives, pour point depressant additives, anti-wear and/or extreme pressure additives, antifoams, detergents, dispersants, and mixtures thereof, preferably among anti-oxidants, viscosity index improving additives, pour point depressant additives, anti-wear and/or extreme pressure additives, and mixtures thereof.
- a lubricating composition according to the invention is formed of (i) at least one diester corresponding to one of formulas (I), (II) or (III) as defined above and (ii) at least an antioxidant additive.
- a lubricating composition according to the invention is formed of (i) at least one diester corresponding to one of formulas (I) or (II) as defined above and (ii) at least one anti- oxidant.
- composition according to the invention comprises, or even consists of:
- additives friction modifiers from 0.01 to 20% by mass, preferably from 0.05 to 15% by mass, more preferably from 0.1 to 10% by mass, even more preferably from 0.5 to 7% by mass, or even from 1 to 5 % by mass, of one or more additives chosen from the additives friction modifiers, anti-wear additives, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, agents defoamers, thickeners, corrosion inhibitors, copper passivators, and mixtures thereof; And
- composition according to the invention comprises, or even consists of:
- a lubricating composition according to the invention comprises, or even consists of:
- base oil(s) distinct from the diesters defined according to the invention preferably chosen from group II and/or III base oils according to the API classification ; - optionally from 5% to 15% by weight of at least one additive improving the viscosity index;
- a lubricating composition according to the invention comprises, or even consists of:
- diesters preferably chosen from diesters of formula (I) or (II);
- base oil(s) distinct from the diesters defined according to the invention preferably chosen from group II and/or III base oils according to the API classification ;
- a composition according to the invention comprises, or even consists of: from 5 to 95% by mass, preferably from 5 to 50% by mass, more preferably 10 to 40% by mass, of said or said diesters corresponding to formula (I) or (II); from 5 to 95% by weight, preferably from 50 to 95% by weight, preferably from 60 to 90% by weight, of one or more base oils different from said diesters; optionally from 0.01 to 20% by weight, preferably from 0.05 to 15% by weight, more preferably from 0.1 to 10% by weight, even more preferably from 0.5 to 7% by weight, or even from 1 to 5 % by mass, of one or more additives chosen from friction modifier additives, anti-wear additives, extreme pressure additives, detergents, antioxidants, viscosity index (VI) improvers, pour point depressant (PPD) additives, dispersants, anti-foaming agents, thickeners, corrosion inhibitors, copper passivating agents, and mixtures thereof, the contents being expressed relative to the total
- a composition according to the invention advantageously has a kinematic viscosity, measured at 100°C according to the ASTM D445 standard, ranging from 1 to 20 mm 2 /s, preferably from 2 to 15 mm 2 /s.
- a composition according to the invention advantageously has a kinematic viscosity, measured at 40°C according to the ASTM D445 standard, ranging from 20 to 50 mm 2 /s, preferably from 25 to 40 mm 2 /s.
- composition according to the invention has good lubricating properties.
- composition according to the invention also has good properties in terms of cold resistance.
- composition according to the invention also has good cooling properties.
- the present invention also relates to the use of a diester in a composition for lubricating and/or cooling at least one part of a mobile or stationary system, said diester being formed between: a diol chosen from 1,2- propanediol, 1,2-decanediol and 1,3-diol comprising 3 to 10 carbon atoms, and two monocarboxylic acids, identical or different, comprising a linear or branched hydrocarbon chain comprising 4 to 10 carbon atoms.
- the composition for lubricating and/or cooling further comprises at least one base oil distinct from the diester and/or at least one additive distinct from the diester, said additive being chosen from anti-oxidants, pour point depressant additives, anti-foam agents, anti-corrosion agents, anti-wear and/or extreme pressure additives, friction modifiers, detergents, agents dispersants and mixtures thereof, in particular among anti-oxidants, pour point depressant additives, anti-foaming agents and anti-corrosion agents.
- additive being chosen from anti-oxidants, pour point depressant additives, anti-foam agents, anti-corrosion agents, anti-wear and/or extreme pressure additives, friction modifiers, detergents, agents dispersants and mixtures thereof, in particular among anti-oxidants, pour point depressant additives, anti-foaming agents and anti-corrosion agents.
- the characteristic(s) of the diester presented in the context of the composition according to the invention are also applicable to the diester used according to the invention.
- the lubricated and/or cooled part is a part of a heavy or light vehicle, a public works machine, or an energy storage device (e.g. data center).
- the diester defined in the present invention makes it possible to reduce the friction coefficients of the lubricating composition.
- the diester defined in the present invention makes it possible to cool the elements of a mobile or stationary system, such as a heavy or light vehicle, a public works machine, an energy storage device.
- composition formulated according to the invention in particular as described above, has excellent tribological properties, particularly in terms of reducing friction, which makes it particularly well suited to use as a lubricating fluid.
- composition formulated according to the invention in particular as described above, has excellent thermal properties, particularly in terms of thermal conductivity, which makes it particularly well suited to use as a cooling fluid.
- a composition of the invention is suitable for the lubrication of transmission members of motor vehicles, in particular transmissions for light or heavy vehicles, for example gearboxes and/or axles.
- a lubricating composition according to the invention has performances in particular in terms of cold properties, particularly well suited to its use for the transmission of heavy goods vehicles, in particular for lubricating the manual gearbox and/or the weight axles. heavy.
- the present invention also relates to a method of lubricating and/or cooling at least one part of a mobile or stationary system, comprising bringing the composition according to the invention into contact with said part.
- the mobile or stationary system is chosen from a heavy or light vehicle, a public works machine, an energy storage device such as a data center.
- the present invention also relates to a method of lubricating and/or cooling at least one mechanical part, in particular a motor vehicle transmission member, comprising bringing the lubricating composition according to the invention into contact with said mechanical part. , in particular said motor vehicle transmission member.
- the diesters defined in the invention can be added to lubricating compositions used in vehicle transmissions in order to improve their “Fuel-Eco” properties, namely their ability to limit the fuel consumption of motor vehicles, without affect their performance, particularly in terms of cold properties.
- Diester A diester formed from 1,2-decanediol and two heptanoic acids
- Diester B diester formed from 1,2-decanediol and two pentanoic acids
- Diester C diester formed from 1,2-propanediol and two heptanoic acids
- Diester D diester formed from 1,2-propanediol and two nonanoic acids
- Diester E diester formed from 1,3-propanediol and two heptanoic acids
- Diester F mixture of diesters formed from 1,2-propanediol and a biosourced cut of C8-C10 acids monoester formed from a monocarboxylic acid comprising a saturated hydrocarbon chain of 3 to 14 carbon atoms; and a monoalcohol comprising a saturated hydrocarbon chain of 3 to 14 carbon atoms.
- the diesters and monoester were prepared according to known ester preparation methods.
- compositions tested in the following examples comprise 100% of each ester (diester or monoester) defined in this example 1.
- the kinematic viscosity at 100°C (KV100) and the kinematic viscosity at 40°C (KV40) were determined according to the ASTM D445 standard.
- All the diesters used according to the invention have a viscosity less than 4 mm 2 /s at 100°C.
- the tribological properties can be evaluated by a test on a rotating ball-disc tribometer (also called ball-plane) of the Linear reciprocating tribometer type. This test makes it possible in particular to evaluate the performance of lubricants in terms of friction in mixed/limit regime depending on the load, pressure or speed conditions applied.
- a rotating ball-disc tribometer also called ball-plane
- This test makes it possible in particular to evaluate the performance of lubricants in terms of friction in mixed/limit regime depending on the load, pressure or speed conditions applied.
- the coefficient of friction of the lubricating compositions tested is determined at 40°C by placing a hardened steel ball of approximately 2 cm in diameter, for example 1.905 cm in diameter, on a hardened steel plane.
- the tribometer can be a device allowing a steel ball and a steel plane to be put into relative motion in order to determine the coefficients of friction/friction for a given lubricating composition, while varying various properties such as speed, load, and temperature.
- the hardened steel surface is reference AISI 52100 with a mirror finish and the ball is also reference AISI 52100 made from hardened steel.
- the applied load is respectively 25 N and the driving speed varies from 10 mm/s to 2500 mm/s.
- the coefficient of friction is in particular determined at a rotation speed of 10 mm/s.
- the coefficient is determined at a sliding speed/drive speed ratio (“Slide-to-Roll Ratio” or %SRR) of 5%.
- the coefficient of friction is measured and recorded via a force sensor.
- the lubricating compositions tested comprise 100% of each ester defined in Example 1.
- the mini flash point is measured according to the ASTM D93Ac standard (Cl eaveland open cup method).
- the flash point is better if the diester is a branched diester.
- the diester formed from type 1,2 propanediol has a lower flash point than the diester formed from type 1,3 propanediol, with the same number of carbon atoms in total.
- COT coefficient of traction
- the measurement conditions were 25 N load, a disk speed of 1.4 m/s for a rated temperature of 100 °C and an SRR of 20%.
- the thermal conductivity of the compounds described in Example 1 was determined according to standard ASTM D7896-19 at different temperatures.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2207202A FR3137918A1 (fr) | 2022-07-13 | 2022-07-13 | Composition lubrifiante à base de diester |
| PCT/EP2023/069110 WO2024013127A1 (fr) | 2022-07-13 | 2023-07-11 | Composition lubrifiante à base de diester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4555051A1 true EP4555051A1 (fr) | 2025-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23736152.2A Pending EP4555051A1 (fr) | 2022-07-13 | 2023-07-11 | Composition lubrifiante à base de diester |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20260078314A1 (fr) |
| EP (1) | EP4555051A1 (fr) |
| JP (1) | JP2025522001A (fr) |
| KR (1) | KR20250035001A (fr) |
| CN (1) | CN119563012A (fr) |
| FR (1) | FR3137918A1 (fr) |
| MX (1) | MX2025000404A (fr) |
| WO (1) | WO2024013127A1 (fr) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9602465D0 (sv) * | 1996-06-24 | 1996-06-24 | Perstorp Ab | A lubricant ester |
| US7517838B2 (en) * | 2002-08-22 | 2009-04-14 | New Japan Chemical Co., Ltd. | Lubricating oil for bearing |
| JP4325484B2 (ja) * | 2003-05-19 | 2009-09-02 | 新日本理化株式会社 | 潤滑油 |
| FR2936812B1 (fr) | 2008-10-03 | 2010-10-15 | Total France | Compositions lubrifiantes pour transmissions. |
| US20120283162A1 (en) * | 2009-12-28 | 2012-11-08 | Idemitsu Kosan Co., Ltd | Base oil for cooling of device, device-cooling oil containing the base oil, device to be cooled by the cooling oil, and device cooling method using the cooling oil |
| JP6247600B2 (ja) | 2014-06-16 | 2017-12-13 | Jxtgエネルギー株式会社 | 変速機用潤滑油組成物 |
| FR3069864B1 (fr) * | 2017-08-03 | 2019-08-16 | Total Marketing Services | Composition lubrifiante comprenant un diester |
| FR3083244B1 (fr) * | 2018-07-02 | 2020-07-17 | Total Marketing Services | Composition pour refroidir et lubrifier un systeme de propulsion d'un vehicule electrique ou hybride |
-
2022
- 2022-07-13 FR FR2207202A patent/FR3137918A1/fr active Pending
-
2023
- 2023-07-11 WO PCT/EP2023/069110 patent/WO2024013127A1/fr not_active Ceased
- 2023-07-11 EP EP23736152.2A patent/EP4555051A1/fr active Pending
- 2023-07-11 US US18/993,087 patent/US20260078314A1/en active Pending
- 2023-07-11 JP JP2025500911A patent/JP2025522001A/ja active Pending
- 2023-07-11 KR KR1020257004405A patent/KR20250035001A/ko active Pending
- 2023-07-11 CN CN202380051891.0A patent/CN119563012A/zh active Pending
-
2025
- 2025-01-09 MX MX2025000404A patent/MX2025000404A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR20250035001A (ko) | 2025-03-11 |
| CN119563012A (zh) | 2025-03-04 |
| US20260078314A1 (en) | 2026-03-19 |
| WO2024013127A1 (fr) | 2024-01-18 |
| FR3137918A1 (fr) | 2024-01-19 |
| MX2025000404A (es) | 2025-02-10 |
| JP2025522001A (ja) | 2025-07-10 |
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