EP4416251A1 - Carbodiimide comme additif dans des lubrifiants destinés à des systèmes de motorisation pour ameliorer la compatibilite avec les elastomeres - Google Patents
Carbodiimide comme additif dans des lubrifiants destinés à des systèmes de motorisation pour ameliorer la compatibilite avec les elastomeresInfo
- Publication number
- EP4416251A1 EP4416251A1 EP22801401.5A EP22801401A EP4416251A1 EP 4416251 A1 EP4416251 A1 EP 4416251A1 EP 22801401 A EP22801401 A EP 22801401A EP 4416251 A1 EP4416251 A1 EP 4416251A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- additive
- carbodiimide
- additives
- carbon atoms
- group
- 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
- 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
- C10M141/06—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 nitrogen-containing compound
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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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/22—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms containing a carbon-to-nitrogen double bond, e.g. guanidines, hydrazones, semicarbazones
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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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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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
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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
- 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
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
- C10M2215/26—Amines
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- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
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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
- C10N2030/52—Base number [TBN]
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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
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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
- C10N2040/25—Internal-combustion engines
Definitions
- the present invention relates to the field of lubricating compositions, in particular lubricating compositions for the lubrication of mobile or stationary motorization systems. It relates more particularly to the use of carbodiimides as additives in lubricating compositions to improve their compatibility with elastomers, in particular with the elastomer materials of seals present in motorization systems.
- the invention makes it possible in particular to improve the compatibility with the elastomers of lubricants implementing one or more basic organic additives improving the total base number (TBN) of said composition.
- Lubricating compositions also called “lubricants”, are commonly used in engines for the main purposes of reducing the frictional forces between the various moving metal parts in the engines. 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 with 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.
- lubricants intended for the lubrication of engines for example gas engines, in particular hydrogen or natural gas, or dual-fuel engines (for example mixed gas/petrol or gas/diesel engines), must satisfy several requirements. They must therefore combine good anti-wear and anti-corrosion performance, good detergency and dispersion properties to reduce the formation of deposits.
- Detergents overbased with insoluble metal salts have been commonly used to neutralize these by-products.
- these metal detergents for example based on phenolate and sulfonate, are ash generators and therefore undesirable.
- TBN Total Base Number
- TBN measured according to ASTM D2896, is a measure of the basicity of the lubricant, and therefore of its ability to neutralize the acidity developed in the lubricant during operation. H is expressed in milligrams of potassium hydroxide per gram of lubricating oil sample (mg KOH/g).
- amine additives for example of the alkylated and aromatic amine type, which do not generate ashes, have been proposed as an alternative to overbased metallic detergents.
- Degradation of the elastomeric material of a gasket can result in things like swelling, shrinkage, embrittlement of the gasket, and can lead to gasket failure, such as gasket leaks, which adversely affects engine performance and can also damage the engine.
- document US 2014/0315768 proposes, for example, an additive comprising at least one iodine atom, in particular an alkyl iodide such as iodododecane.
- the addition of such an additive does not allow access to an improvement in the compatibility of the lubricating composition with respect to the different types of elastomers that can be used at the level of the seals of the motorization systems, for example example for gas engines or engines of heavy goods vehicles, with which the lubricant is in contact, in particular vis-à-vis ethylene-acrylic elastomers.
- the present invention aims to propose a means for improving the compatibility of lubricants with the various elastomers that can be used in the seals of motorization systems with which the lubricant is in contact, in particular in the context of the formulation of lubricants incorporating basic organic additives, in particular amino additives, implemented to increase the TBN of the lubricant.
- Carbodiimides are known as anti-hydrolysis agents in the formulation of materials of the rubber and plastic type, in particular for polyesters, polyamides and thermoplastic polyurethanes.
- Carbodiimides have also been proposed to improve the oxidation stability, anti-rust or anti-corrosion performance of lubricants.
- the document US3,346,496 proposes the implementation of carbodiimides as antioxidants and as protective agents against corrosion, in combination with diphenyl amine or hydroquinolin antioxidants.
- Document WO 00/22074 proposes combining an acid anti-rust additive and an acid deactivator such as a carbodiimide, to formulate a lubricating oil having improved oxidation stability and anti-rust performance.
- Document EP 0 992 571 further describes the use of a carbodiimide with a specific N-phenyl-naphthyl amine to improve the oxidation stability of mineral oils.
- document US 2006/0122077 describes the use of a carbodiimide, in combination with a carboxylic acid comprising from 2 to 24 carbon atoms, to improve the properties of corrosion inhibition, lubrication and compatibility with lead. , in a composition for power transmissions.
- the present invention relates, according to a first of its aspects, to a lubricating composition intended for a motorization system, comprising at least:
- At least one basic organic additive improving the total base number of said composition, in particular of the polyalkylamine type.
- TBN booster used in a lubricating composition according to the invention, make it possible to increase the total base index as defined above, denoted TBN, of the composition; in other words, are able to neutralize acids resulting for example from the combustion of gases or chemical decomposition by-products, and provide access to improved detergent performance.
- the said “TBN booster” additive(s) have a base number, called BN (for “Base number” in English terminology), measured according to the ASTM D2896 standard, greater than 10 mg KOH/g and up to 1200 mg KOH/g of additive, in particular greater than or equal to 50 mg KOH/g of additive and more particularly greater than or equal to 100 mg KOH/g of additive.
- BN Base number
- the said “TBN booster” additive or additives are chosen from:
- a hydroxybenzoic acid optionally substituted by a hydrocarbon group; or an alkali or alkaline earth metal salt thereof, optionally overbased;
- the said “TBN booster” additive or additives are chosen from polyalkylamines.
- Such a lubricating composition advantageously has improved compatibility with the elastomers, in particular with the elastomers of the seals present at the level of the motorization systems, with which it is intended to come into contact.
- a lubricant in particular comprising one or more basic organic additives, in particular of the polyalkylamine type, used to increase the TBN of the lubricant , by a carbodiimide additive, to significantly improve the compatibility of the lubricant with elastomers and, in particular, to advantageously reduce/limit the harmful effects associated with the implementation of said basic organic additives “TBN booster”.
- the invention thus relates, according to another of its aspects, to the use of at least one carbodiimide additive in a lubricating composition intended for an engine system, in particular in a lubricating composition comprising at least one basic organic additive improving TBN , to improve its compatibility with the elastomers, in particular with the elastomers of the seals of the motorization system with which the lubricating composition is intended to come into contact.
- the compatibility of elastomers can be evaluated according to the CEC L-l 12-16 standard, common for heavy-duty diesel engines and gas engines, which references compatibility on four different types of elastomer: "RE6” for a fluoroelastomer, “RE7” for a polyacrylate, “RE8” for a nitrile and “RE9” for an ethylene acrylic.
- the addition of the carbodiimide additive makes it possible to improve the compatibility of the lubricant, not only with respect to elastomers of the fluoropolymer type, but also with all the types of elastomers considered according to this standard and that may be exposed to lubricant within the drive system.
- the possibility of increasing the compatibility of the lubricant via the addition of a carbodiimide additive according to the invention allows the implementation in the lubricant of basic organic additives, free of ash, in particular of amine additives as described in the remainder of the text, in particular in quantities greater than those which can be considered in the absence of carbodiimide additive, without negatively impacting the properties lubricant compatibility with elastomers.
- the invention also relates to a process or a method for improving the compatibility with elastomers, in particular with seals, of a lubricating composition intended for a motorization system, in particular of a lubricating composition implementing one or more additives basic organic lubricant TBN improvers, preferably one or more polyalkylamines, comprising the addition to said composition of at least one carbodiimide additive.
- the invention thus advantageously makes it possible to formulate a lubricant comprising an increased content of ashless organic basic additives, in particular of polyalkylamines, without however altering the compatibility of the lubricant with elastomers, in particular seal elastomers.
- TBN booster additives
- a lubricating composition according to the invention can thus combine a high TBN, a low ash content, in particular sulphated ash, and good compatibility properties with elastomers.
- a lubricating composition according to the invention may advantageously have a TBN, measured according to the ASTM D2896 standard, of at least 1 mg KOH/g of lubricating composition, in particular of at least 2 mg KOH, in particular of at least 3 mg KOH per gram of lubricating composition.
- a lubricating composition according to the invention can advantageously have a low sulphated ash content.
- the sulfated ash content of a lubricating composition according to the invention may be less than or equal to 1.3% by mass, in particular less than or equal to 1% by mass, more particularly less than or equal to 0.8% by mass , relative to the total mass of said lubricating composition.
- the sulphated ash content can be measured according to the ASTM D874 standard.
- the invention relates, according to another of its aspects, to a process or a method for increasing the TBN of a lubricating composition intended for an engine system, in particular of a lubricating composition with a low ash content, without impacting the rate of ash of the said composition nor its compatibility with the elastomers, comprising the addition to the said lubricating composition of at least one basic organic additive improving the TBN, in particular of at least one additive of the polyalkylamine type, in combination with at least one carbodiimide additive.
- the lubricants considered according to the invention can be implemented for various motorization systems, mobile or stationary, in particular for motorization systems comprising one or more elastomeric materials, in particular elastomeric seals, with which the lubricant is brought into contact.
- motorization system within the meaning of the present invention, is meant a system comprising all the mechanical parts necessary for the intended mobile or stationary application and including at least one engine, in particular an internal combustion engine. It may be a combustion, gas, in particular hydrogen, ammonia, electric or hybrid, mixed (dual fuel) engine system, for example dual fuel gas/petrol or gas/diesel oil, depending on the nature of the or engines included in the engine system: combustion, gas, in particular hydrogen, ammonia and/or electric engine.
- gas in particular hydrogen, ammonia, electric or hybrid
- mixed (dual fuel) engine system for example dual fuel gas/petrol or gas/diesel oil, depending on the nature of the or engines included in the engine system: combustion, gas, in particular hydrogen, ammonia and/or electric engine.
- a “mobile” motorization system is more particularly a motorization system implemented in vehicles, including light vehicles, heavy goods vehicles, so-called “off-road” mobile machines or even marine vehicles.
- a mobile motorization system thus corresponds more particularly to the propulsion system of a vehicle.
- propulsion system within the meaning of the present invention, is meant a system comprising the mechanical parts necessary for the propulsion of a vehicle.
- the propulsion system more particularly includes an engine, a transmission and optionally a battery.
- the battery is itself generally made up of a set of electric accumulators, called cells.
- a “stationary” motorization system within the meaning of the invention is a motorization system including a stationary motor.
- a stationary motor For example, it can find applications in devices for the production of electrical energy. It may in particular be a gas engine system, in particular a stationary gas engine.
- the lubricating composition considered according to the invention is implemented for a gas engine system, including biogas engine systems, in particular for natural gas engines (liquefied natural gas (LNG) or natural gas (CNG), hydrogen engines or even dual-fuel engines, for which it is imperative to control both the ash content and the TBN.
- natural gas engines liquefied natural gas (LNG) or natural gas (CNG)
- hydrogen engines or even dual-fuel engines, for which it is imperative to control both the ash content and the TBN.
- It may be a lubricating composition for a four-stroke engine system, in particular for heavy-duty engines or marine four-stroke engines.
- the lubricant considered according to the invention is intended for a four-stroke engine operating on gas, in particular on hydrogen or on natural gas.
- the invention also relates, according to another of its aspects, to a process or a method for lubricating a motorization system, in particular as described above, comprising a step of bringing at least one mechanical part into contact of said system with a lubricating composition as defined above.
- alkyl a saturated, linear or branched aliphatic group; for example, a C x to C z alkyl represents a saturated carbon chain of x to z carbon atoms, linear or branched;
- a cyclic alkyl group for example a C x to C z cycloalkyl represents a cyclic carbon group of x to z carbon atoms, for example a cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl;
- aryl a mono- or polycyclic aromatic hydrocarbon group, in particular comprising between 6 and 10 carbon atoms.
- aryl group mention may be made of phenyl or naphthyl groups;
- aralkyl an aryl group as defined above, substituted by at least one alkyl group as defined above.
- the aralkyl group can be linked to the rest of the molecule through the aryl or alkyl part of the radical.
- alkylene a divalent radical, preferably saturated, linear or branched, derived from a hydrocarbon by removal of two hydrogen atoms from separate carbon atoms.
- a C1-C3-alkylene group represents a saturated carbon chain, linear or branched, of 1 to 3 carbon atoms, for example a methylene, ethylene, 1-methylethylene or propylene;
- alkenyl an aliphatic, linear or branched, mono- or polyunsaturated group; for example containing one or two ethylenic unsaturations
- hydrocarbon a compound or a fragment of a compound chosen from: an alkyl, an alkenyl, an aryl, an aralkyl.
- the hydrocarbon groups can, if desired, include heteroatoms.
- the invention is based on the implementation, in a lubricant for a motorization system, of one or more carbodiimide additives, to improve the compatibility of the lubricant with elastomers. It is understood that the invention can implement a single carbodiimide additive or a mixture of at least two distinct carbodiimide additives, in particular two, three or more distinct carbodiimide additives, in particular as defined below.
- the carbodiimide additive under consideration according to the invention may be a so-called “monocarbodiimide” additive comprising a single carbodiimide unit, or even a so-called “polycarbodiimide” additive comprising at least two carbodiimide units.
- carbodiimide additives used according to the invention are of the following formula (I):
- X and Y represent, independently of each other, a hydrocarbon radical, saturated or not, linear, branched or cyclic, aromatic or not, optionally substituted, preferably comprising from 6 to 60 carbon atoms, in particular from 8 to 20 carbon atoms, and more particularly from 9 to 15 carbon atoms; and q is 0 or an integer ranging from 1 to 100, in particular from 1 to 50 and more particularly from 1 to 40.
- Said radicals X and Y can have aromatic, aliphatic and/or cycloaliphatic substituents, preferably at least in the ortho position relative to the carbodiimide group, for example alkyl groups comprising at least two carbon atoms.
- the carbodiimide additive considered according to the invention is a mono-carbodiimide.
- the carbodiimide additive under consideration according to the invention may be of the following formula (!'):
- X and Y can represent a phenyl group, preferably substituted at at least one of the ortho positions relative to the carbodiimide function, preferably at the two ortho positions , and optionally in the para position relative to the carbodiimide function, by a group chosen from aliphatic, linear, branched or cyclic, substituted or unsubstituted, saturated or unsaturated groups, and substituted or unsubstituted aromatic groups, said aliphatic and/or aromatic groups preferably comprising from 2 to 20 carbon atoms.
- X and Y in the aforementioned formula (!’ can represent radicals of formula:
- R1 and R2 represents an aliphatic, linear, branched or cyclic, substituted or unsubstituted, saturated or unsaturated group, or a substituted or unsubstituted aromatic group, preferably comprising from 2 to 20 carbon atoms;
- the other of Ri and R2 represents a hydrogen atom, an aliphatic, linear, branched or cyclic, substituted or unsubstituted, saturated or unsaturated group, or a substituted or unsubstituted aromatic group, preferably comprising from 2 to 20 carbon atoms ;
- Ri and R2 represents a hydrogen atom, an aliphatic, linear, branched or cyclic, substituted or unsubstituted, saturated or unsaturated group, or a substituted or unsubstituted aromatic group, preferably comprising from 2 to 20 carbon atoms ;
- R3 represents a hydrogen atom, an aliphatic, linear, branched or cyclic, substituted or unsubstituted, saturated or unsaturated group, or a substituted or unsubstituted aromatic group, comprising preferably from 2 to 20 carbon atoms; said aromatic group being optionally condensed with the phenyl ring supporting it.
- R1 and R2 represents(s) an alkyl group, linear or branched, C2 to C20, such as ethyl, propyl, isopropyl, butyl, tert-butyl; a C3 to C20 cycloalkyl group, for example a cyclohexyl group; or an aryl or aralkyl group comprising from 6 to 15 carbon atoms, such as a phenyl, tolyl or benzyl group.
- C2 to C20 such as ethyl, propyl, isopropyl, butyl, tert-butyl
- a C3 to C20 cycloalkyl group for example a cyclohexyl group
- an aryl or aralkyl group comprising from 6 to 15 carbon atoms, such as a phenyl, tolyl or benzyl group.
- R1 and R2 which are identical or different, in particular identical, represent branched C3 to C20 alkyl groups, in particular C3 to Cio, in particular C3 to C6, such as isopropyl groups.
- R3 represents a hydrogen atom or a branched C3 to C20 alkyl group, in particular C3 to Cio, in particular C3 to C6, such as an isopropyl group; more preferably R3 represents a hydrogen atom.
- the carbodiimide additive used according to the invention corresponds to the following formula (a): [Chem 4] in which the R1 groups, which are identical or different, and the R2 groups, which are identical or different, are as defined above, in particular represent branched C3 to C6 alkyl groups, preferably isopropyl groups.
- the carbodiimide additive can be chosen from N,N'-bis(2,6-diisopropylphenyl)carbodiimide, N,N'-bis(2,4,6-triisopropylphenyl)carbodiimide and their mixtures .
- the carbodiimide additive is N,N′-bis(2,6-diisopropylphenyl)carbodiimide.
- the carbodiimide additives can also be chosen from dimers, oligomers and polymers of carbodiimides, called “poly-carbodiimide” additives.
- Such poly-carbodiimide additives correspond more particularly to the aforementioned formula (I), in which q is greater than or equal to 1, it being possible for the groups X and Y to be as defined previously for the mono-carbodiimides.
- carbodiimide additives used according to the invention may be commercially available or prepared according to synthetic methods known to those skilled in the art.
- Said carbodiimide additive(s) are advantageously used in a content sufficient to achieve the desired effect in terms of compatibility of the lubricant with respect to elastomers, in particular to achieve the specifications required for the lubricant in terms of compatibility with elastomers, for example as evaluated according to the CEC L-1 12-16 standard.
- the quantity of carbodiimide additive(s) used thus varies more particularly depending on the nature of the lubricant, and more particularly with regard to the nature and quantity of basic organic additives, in particular amino additives, present in the lubricant. lubricant level and may adversely affect the compatibility of the lubricant with elastomers.
- the said carbodiimide additive(s) can thus be advantageously implemented in an adjusted quantity to overcome/compensate for the harmful effect associated with the implementation of basic organic additives, in particular as described below. of the text, on the compatibility of the lubricant on the elastomers.
- a lubricating composition according to the invention may comprise from 0.01 to 0.8% by mass of active material of carbodiimide, in particular from 0.05 to 0.5% by mass and more particularly from 0. 1 to 0.3% by mass of active carbodiimide material, relative to the total mass of said lubricating composition.
- the mass content of active carbodiimide material is intended to denote the mass content of said carbodiimide compound, without any compounds, in particular solvents, with which it is formulated.
- a lubricating composition as considered according to the invention comprises one or more base oils, as well as other additives conventionally considered in lubricating compositions.
- a lubricating composition comprises one or more base oils.
- base oils can be chosen from the base oils conventionally used in the field of lubricating oils, such as mineral, synthetic or natural, animal or vegetable oils or mixtures thereof.
- It can be a mixture of several base oils, for example a mixture of two, three, four or even more than four base oils.
- the base oils of the lubricating compositions considered according to the invention may in particular be 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 the table below or mixtures thereof.
- 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, de-alpha removal, solvent dewaxing, hydrotreating, hydrocracking, hydroisomerization and hydrofinishing .
- Synthetic base oils can be esters of carboxylic acids and alcohols, polyalphaolefins or polyalkylene glycol (PAG) obtained by polymerization or copolymerization of alkylene oxides comprising from 2 to 8 carbon atoms, in particular of 2 to 4 carbon atoms.
- the polyalphaolefins used as base oils are for example obtained from monomers comprising 4 to 32 carbon atoms, for example from decene, octene or dodecene, and whose viscosity at 100° C. is between 1, 5 and 15 mm 2 .s -1 according to the ASTM D445 standard. Their average molecular mass is generally between 250 and 3000 according to the ASTM D5296 standard.
- Blends of synthetic and mineral oils, which may be biosourced, can also be used.
- a lubricating composition under consideration according to the invention comprises at least one mineral base oil (group I).
- a lubricating composition considered according to the invention comprises at least one base oil chosen from group II, III and IV oils of the API classification, and mixtures thereof, in particular at least one group base III.
- a lubricating composition under consideration according to the invention may comprise at least 50% by mass of base oil(s) relative to its total mass, in particular at least 60% by mass of base oil(s), and more particularly between 70 and 99% by mass of base oil(s).
- the implementation of one or more carbodiimide additives according to the invention proves to be particularly advantageous for countering the harmful effect associated with the implementation of basic organic additives improving the TBN, called "TBN booster". , in particular amino additives, on the compatibility of the lubricant with elastomers.
- the lubricating composition under consideration according to the invention, added with one or more carbodiimide additives, in particular as defined above, can thus advantageously comprise one or more basic organic additives capable of increasing the TBN of the lubricating composition, in particular one or more additives amines.
- TBN booster The basic organic additives "TBN booster” are known to those skilled in the art. They are distinct from metallic detergents. These "TBN booster” additives have the advantage of generating little or no ash, unlike metallic detergents. They are also called “ashless” (or “ashless” in Anglo-Saxon terminology) compounds or additives.
- the "TBN booster" additives used according to the invention have a base number, called BN (for "Base number” in English terminology), measured according to the ASTM D2896 standard, greater than 10 mg KOH / g and up to 1200 mg KOH/g of additive, in in particular greater than or equal to 50 mg KOH/g of additive and more particularly greater than or equal to 100 mg KOH/g of additive.
- BN Base number
- the quantity of the said basic organic additive(s) improving the TBN, in particular of amine additive(s), for example of the polyalkylamine type , as described in the rest of the text, which can be incorporated into said lubricating composition is not limited with regard to considerations of incompatibility of said bases with respect to elastomers.
- the quantity of basic organic additives, in particular of amine additives, for example of the polyalkylamine type, can be adjusted so as to achieve the desired TBN for the lubricating composition.
- the target value of TBN may vary depending on the intended application for the lubricant.
- the presence of at least one carbodiimide additive thus makes it possible to envisage the implementation of an increased quantity of basic organic additive(s) without impacting the compatibility of the lubricant with the elastomers, to access a lubricant with the desired TBN, and thus reduce the presence of undesirable metallic detergents given the ash they generate.
- the said basic organic additive(s) "TBN booster”, in particular amino, for example of polyalkylamine type, can be implemented in a content greater than or equal to 0.1% by weight, relative to the total mass of said lubricating composition, in particular in a content of between 0.1 and 10% by mass, more particularly between 0.5 and 7% by mass, preferably between 1 and 5% by mass.
- the said basic organic “TBN booster” additive(s), in particular amino, for example of the polyalkylamine type, can be used in a content such that their presence, at the level of the lubricating composition, contributes to at least 1 mg of KOH/g of the total TBN of said composition, in particular from 1 to 40 mg of KOH/g, in particular from 1 to 15 mg of KOH/g, in particular to at least 3 mg of KOH/g of the TBN of the lubricating composition .
- the said basic organic “TBN booster” additive(s), in particular amino, for example of the polyalkylamine type, can be used in a content such that the BN of the said basic organic additive(s) represents at least 3%, in particular at least 5% and preferably 10 to 50% of the TBN of the lubricating composition.
- the said basic organic “TBN booster” additive(s), in particular amino additive(s), for example of the polyalkylamine type, and the said carbodiimide compound(s), are present in a lubricating composition according to the invention in a mass ratio TBN booster/carbodiimide greater than or equal to 0.3, in particular greater than or equal to 0.8 and more particularly between 1 and 10.
- the said basic organic “TBN booster” additive(s) used in a composition according to the invention may preferably be chosen from:
- a hydroxybenzoic acid optionally substituted by a hydrocarbon group; or an alkali or alkaline earth metal salt thereof, optionally overbased;
- the “TBN booster” additives considered according to the invention are not amino antioxidant additives, in particular antioxidant additives of the aromatic amine type.
- Antioxidants of the aromatic amine type are generally of formula NR 8 R 9 R 10 in which R 8 represents an aliphatic group or an optionally substituted aromatic group, R 9 represents an optionally substituted aromatic group, R 10 represents an atom of hydrogen, an alkyl group, an aryl group or a group of formula R n S(O) z R 12 in which R 11 represents an alkylene group or an alkenylene group, R 12 represents an alkyl group, an alkenyl group or an aryl and z represents 0, 1 or 2.
- a lubricating composition according to the invention may comprise a single basic organic additive "TBN booster” or a mixture of at least two basic organic additives "TBN booster”, in particular two, three or more basic organic additives "TBN booster”, in particular chosen from the amino compounds detailed in the following text.
- the basic organic "TBN booster" additives used in a lubricating composition according to the invention may more particularly comprise additives of the polyalkylamine type.
- a lubricating composition according to the invention comprises at least one additive of polyalkylamine type, more particularly chosen from dialkylene triamines and trialkylene tetramines.
- the polyalkylamine additives may more particularly be of the following formula (II): [Chem 5] in which :
- R4 and R5 represent, independently of one another, a hydrogen atom or an alkyl or alkenyl group, linear or branched, in particular comprising from 1 to 22 carbon atoms;
- R6 and R7 represent, independently of each other, an alkyl or alkenyl group, linear or branched, in particular comprising from 1 to 30 carbon atoms, in particular from 1 to 22 carbon atoms;
- A1 and A2 represent, independently of each other, a C1 to C6, in particular C1 to C4, in particular C1 to C3 alkylene group; preferably Al and A2 represent propylene groups -(CEh-; and m is 0, 1, 2 or 3; preferably m is 1 or 2.
- A1 and A2 are identical. In particular, they can represent methylene (-CH2-), ethylene (-CH2-CH2-), methylethylene (-CH2-CH(CH3)- or -CH(CH3)- CH2-) or propylene (-(CH2 )3-).
- A1 and A2 represent propylene (or trimethylene) -(Eh-) groups.
- R4 and R5 are identical.
- R4 and R5 can represent hydrogen atoms.
- the polyalkylamine additive may be of formula (II) in which:
- R ⁇ and R7 identical or different, represent alkyl groups, linear or branched, comprising from 8 to 22 carbon atoms, preferably from 14 to 18 carbon atoms and more preferably from 16 to 18 carbon atoms.
- the polyalkylamine additive may be of formula (II) in which:
- R4 and R5 represent, independently of one another, a hydrogen atom or an alkyl group, linear or branched, Ci to C6, in particular Ci to C3, in particular a methyl group; preferably R4 and R5, which are identical, represent hydrogen atoms or methyl groups; preferably R4 and R5, which are identical, represent hydrogen atoms;
- R ⁇ and R7 represent, independently of one another, an alkyl group, linear or branched, Ci to C0, in particular Ci to C3, in particular a methyl group; preferably R6 and R7, which are identical, represent methyl groups.
- a lubricating composition according to the invention may comprise at least one polyalkylamine additive of formula (II) mentioned above in which m is 1 and Al and A2 are propylene groups.
- polyalkylamine additive may be of the following formula (II-a): [Chem 6] in which :
- R4 and R5 represent, independently of one another, a hydrogen atom or a C1 to C6 alkyl group, in particular C1 to C3 and more particularly a methyl group; preferably, R4 and R5 are identical and more preferably represent hydrogen atoms or methyl groups; and even more preferably R4 and R5 are identical and represent hydrogen atoms;
- R6 and R7 represent, independently of each other, a C1 to C6 alkyl group, in particular C1 to C3 and more particularly a methyl group; preferably R6 and R7 are identical and more preferably represent methyl groups.
- DMAPAPA N,N-dimethyldipropylene triamine
- TMDPT N,N,N',N'-tetramethyldipropylene triamine
- a lubricating composition according to the invention may comprise at least one polyalkylamine additive of formula (II) mentioned above in which m is 2 and Al and A2 are propylene groups.
- polyalkylamine additive may be of the following formula (II-b):
- R4 and R5 represent hydrogen atoms
- R6 and R7 represent, independently of each other, a C5 to C22 alkyl group, preferably C14 to Cis and more preferably C10 to Cis.
- a C5 to C22 alkyl group preferably C14 to Cis and more preferably C10 to Cis.
- Cis preferably C14 to Cis
- C10 to Cis preferably C10 to Cis.
- the lubricating composition according to the invention may thus comprise a mixture of polyalkylamines incorporating one or more branched polyalkylamines, as described in application WO 2017/148816.
- the lubricating composition according to the invention can implement one or more polyalkylamines chosen from the polyalkylamines of formula (III) or (IV) below:
- RO and R? are as defined previously; in particular represent, independently of each other, a linear or branched alkyl or alkenyl group comprising from 8 to 22 carbon atoms, in particular from 14 to 18 carbon atoms and more particularly from 16 to 18 carbon atoms ; n and z represent, independently of each other, 0, 1, 2 or 3; and when z is different from 0, o and p are, independently of each other, 0.1, 2 or 3; and derivatives thereof.
- the polyalkylamine derivatives correspond more particularly to polyalkylamines of formula (III) or (IV) in which one or more NH functions are methylated and/or alkoxylated.
- composition according to the invention can implement at least one polyalkylamine of formula (III) or (IV) branched, in other words being of formula (III) in which at least one of n and z is greater than or equal to 1, or of formula (IV) in which n is greater than or equal to 1.
- the lubricating composition comprises a mixture of polyalkylamines of formula (III) and/or (IV) of which at least 3% by mass, in particular at least 5% by mass, in particular at least 10% by mass and more particularly at least 20% by mass, of branched polyalkylamines of formula (III) and/or (IV), relative to the total mass of the mixture of polyalkylamines of formula (III) and (IV).
- a lubricating composition according to the invention may comprise, as basic organic "TBN booster" additives, one or more additives of the ionic liquid type chosen from ionic liquids based on guanidinium, ionic liquids based on ammonium, ionic liquids based on phosphonium and mixtures thereof.
- the ionic liquid additives based on guanidinium can more particularly be of the following formula (V):
- [CATi + ] represents a cation of formula (Va):
- RI and R2 are chosen, independently of one another, from a hydrogen atom, a linear or branched C1-C30 alkyl group, a C3-C8 cycloalkyl group, a C6-C12 aryl group , or a C7-C12 aralkyl group, optionally substituted by a functional group comprising an oxygen and/or nitrogen atom;
- R3, R4, R5, R6 are chosen, independently of each other, from a linear or branched C1-C30 alkyl group, a C3-C8 cycloalkyl group, a C6-C12 aryl group or a C6-C12 aralkyl group.
- C7-C12 optionally substituted by a functional group comprising an oxygen and/or nitrogen atom; or two of (R3,R4) or (R5,R6) together form a methylene chain -(CH J i- with pi an integer from 2 to 5.
- R1 R2
- R3, R4, R5 and R6 are chosen, independently of each other, from alkyl groups, linear or branched, C1-C6, in particular C1-C3 and in particular methyl and ethyl groups.
- [CATi + ] is chosen from:
- [Xf] represents a counter-ion compatible with the intended application according to the invention.
- [Xf] can comprise one or more anions chosen from halides, perhalides, pseudohalides, sulphates, sulphites, sulphonates, sulphonimides, phosphates, phosphites, phosphonates, methides, carboxylates, hydroxycarboxylates, alcoholates, azolates, carbonates, carbamates, thiophosphates , thiocarboxylates, thiocarbamates, thiocarbonates, xanthates, thiosulfonates, thiosulfates, nitrate, nitrite, perchlorate, halometalates, amino acids and borates.
- anions chosen from halides, perhalides, pseudohalides, sulphates, sulphites, sulphonates, sulphonimides, phosphates, phosphites, phosphonates, methides, carboxylates, hydroxycarboxylates, alcoholates
- the counterion [Xf] is chosen from: a) carboxylates Ra-COO", with Ra chosen from alkyl and alkenyl groups comprising from 1 to 30 carbon atoms, preferably from 6 to 15 carbon atoms; aryl groups comprising from 6 to 30 carbon atoms, preferably from 6 to 15 carbon atoms; aralkyl groups comprising from 7 to 30 carbon atoms, in particular from 7 to 20 carbon atoms, optionally substituted by a functional group comprising an oxygen and/or nitrogen atom.
- [Xf] can represent 2-ethylhexanoate.
- RaRbHCO′′ with Ra chosen from alkyl and alkenyl groups comprising from 1 to 30 carbon atoms, aryl groups comprising from 6 to 30 carbon atoms, aralkyl groups comprising from 7 to 30 carbon atoms;
- Rb is chosen from H, alkyl and alkenyl groups comprising from 1 to 30 carbon atoms, aryl groups comprising from 6 to 30 carbon atoms, aralkyl groups comprising from 7 to 30 carbon atoms, optionally substituted by a functional group comprising an oxygen and/or nitrogen atom.
- [Xf] is chosen from alkyl phenolates, in particular comprising from 7 to 20 carbon atoms; aminophenolates, in particular in which the amine group is substituted by at least one alkyl group comprising from 1 to 18, in particular from 2 to 12, carbon atoms; and their mixtures.
- [Xf] can represent tert-amylphenolate, isooctylphenolate or dioctylamino phenolate.
- [Xf] can represent 2-hydroxypropanoic acid.
- [Xf] is chosen from: 2-ethylhexanoate, 2-hydroxypropanoate, ter-amylphenolate, isooctylphenolate or dioctylaminophenolate.
- the ionic liquid based on guanidinium has the aforementioned formula (V), in which [CATi + ] represents 1,1,3,3-tetramethylguanidinium, of formula (Vb) [Chem 12] and [Xf ] represents one or more counterions chosen from the compounds of formula (VI) [Chem 13] in which : - A represents an aryl group comprising from 6 to 12 carbon atoms; in particular a phenyl or naphthyl group;
- R 1 is chosen from a hydrogen atom, an alkyl or alkenyl group, linear or branched, comprising from 1 to 30 carbon atoms, an aryl group comprising from 6 to 30 carbon atoms;
- - Yi represents an alkylene group, linear or branched, comprising from 1 to 6 carbon atoms
- - ni represents an integer ranging from 1 to 20, in particular from 1 to 15 and more particularly from 1 to 12, preferably from 4 to 12 and more preferably from 6 to 10.
- [Xf] corresponds to the formula (VIA):
- R 1 is chosen from a hydrogen atom, an alkyl or alkenyl group, linear or branched, comprising from 1 to 30 carbon atoms and an aryl group comprising from 6 to 30 carbon atoms; R 1 possibly being in the ortho, para or mixed position, preferably in the para position;
- - Yi is an alkylene group, linear or branched, comprising from 1 to 6 carbon atoms, preferably from 1 to 3 carbon atoms, and more preferably Y i is -CH2-CH2-;
- - ni is an integer ranging from 1 to 15, preferably from 1 to 12.
- R 1 is chosen from a hydrogen atom and an alkyl or alkenyl group, linear or branched, comprising from 1 to 30 carbon atoms, preferably from 1 to 24 , in particular from 1 to 18 carbon atoms, more preferably from 1 to 12 carbon atoms; RI being in ortho, para or meta position.
- R 1 represents a linear or branched alkyl group, comprising from 1 to 18 carbon atoms, in particular from 1 to 12 carbon atoms, R1 preferably being in the para position.
- R 1 can be chosen from isopropyl, n-propyl, iso-butyl, tert-butyl, n-butyl, tert-pentyl, n-pentyl, n-hexyl, tert-hexyl, n-heptyl, tert -heptyl, n-octyl, tert-octyl, 2-ethyl hexyl, n-nonyl, tert-nonyl and dodecyl.
- [Xf] corresponds to the formula (VIB): [Chem 15] in which ni is between 4 and 10, in particular between 6 and 10.
- the ionic liquid additives based on ammonium can more particularly be of the following formula (VII): [Chem 16]
- [CAT2 + ] represents a tri-n-octylmethylammonium cation
- [X2] represents one or more anionic species chosen from the carboxylates of formula (VIIA):
- R 2 is an alkyl or alkenyl group, linear or branched, comprising from 2 to 8 carbon atoms; preferably a linear or branched alkyl group comprising from 2 to 8 carbon atoms, in particular from 4 to 8 carbon atoms and more particularly from 5 to 7 carbon atoms.
- [X2'] is 2-ethylhexanoate.
- the ammonium-based ionic liquid is tri-n-octylmethylammonium 2-ethylhexanoate.
- the ionic liquid additives based on phosphonium can more particularly be of the following formula (VIII):
- [CAT3 + ] represents a phosphonium cation and [ X3”
- [CAT3 + ] is chosen from cations of formula (VIIIA):
- R7, R8, R9 and RIO are hydrocarbon groups, linear or branched, saturated or unsaturated, comprising from 1 to 12 carbon atoms;
- R7, R8, R9, RIO is chosen from alkyl or alkenyl groups, linear or branched, Ci to C3;
- R7, R8, R9, RIO are chosen, independently of each other, from alkyl or alkenyl groups, linear or branched, Cs to C12.
- R7 represents an alkyl or alkenyl group, preferably a linear or branched, C1 to C3 alkyl group
- R8 - R8, R9, RIO represent, independently of one another, alkyl or alkenyl groups, preferably alkyl groups, linear or branched, Cs to C12; preferably R7, R8 and R9 are identical and represent linear or branched Cs to C12 alkyl groups.
- xf represents a counterion chosen from the compounds of formula (VIIIB):
- [Xa”] represents 2-ethylhexanoate.
- [CAT3 + ] is tri-n-octyl methylphosphonium and [Xr] is 2-ethylhexanoate.
- the phosphonium-based ionic liquid is tri-n-octyl methylphosphonium 2-ethylhexanoate.
- the ionic liquids based on guanidinium, ammonium or phosphonium are preferably soluble in the oil or the base oils used in the lubricating composition.
- a compound is said to be soluble in a base oil if it can be solubilized at a concentration of at least 0.01% by weight relative to the weight of the base oil, at room temperature.
- a lubricating composition according to the invention may comprise, as basic organic additive “TBN booster”, one or more additives having amine, boron and acid or carboxylate functionalities.
- Such additives are in particular described in applications WO 2018/220007, WO 2018/220009, WO 2019/229173, WO 2020/094796, WO 2020/094800 and WO 2021/089671.
- additives can be more particularly chosen from the products of the reaction between at least:
- hydroxybenzoic acid optionally substituted by a hydrocarbon group; or one alkali or alkaline earth metal salt thereof, optionally overbased;
- Compounds of the hydroxybenzoic acid type are molecules which comprise at least one benzoic acid fragment, and in which the aromatic ring bears at least one hydroxyl function, and optionally an alkyl, alkenyl, aryl substituent or aralkyl.
- the hydrocarbon substituent and the hydroxyl function can be in the ortho, meta or para position with respect to the acid function and with respect to each other.
- the hydrocarbon substituent can comprise from 1 to 50 carbon atoms.
- hydroxybenzoic type examples include in particular salicylic acid (hydroxy-2-benzoic acid), hydroxy-3-benzoic acid, hydroxy-4-benzoic acid, preferably salicylic acid.
- the compounds of hydroxybenzoic acid type substituted by a hydrocarbon group can be chosen, for example, from mono-(alkyl or alkenyl) substituted salicylic acids, di-alkyl and/or alkenyl substituted salicylic acids, acid functionalized calixarenes, in particular d salicylic acid, and mixtures thereof.
- the compounds of hydroxybenzoic acid type may correspond to the following formula (IX):
- R represents a hydrocarbon group, linear, branched or cyclic, of 1 to 50 carbon atoms, R possibly comprising one or more heteroatoms; a is 0, 1 or 2, preferably a is 1. When a is 2, the hydrocarbon groups may be the same or different.
- Hydrocarbon groups include alkyl, alkenyl, aryl and aralkyl groups, and optionally include one or more heteroatoms.
- R does not comprise a heteroatom.
- R represents a linear or branched alkyl or alkenyl group, preferably a linear alkyl group, comprising from 1 to 50 carbon atoms, in particular from 12 to 40 and more particularly from 18 to 30 carbon atoms.
- the hydroxybenzoic acid compound of formula (IX) is salicylic acid or a salicylic acid derivative of formula (IXA)
- the compounds of hydroxybenzoic acid type can be chosen from calixarene structures.
- the calixarene structures according to the invention designate more particularly cyclic structures comprising m units of hydroxybenzoic acid substituted by a hydrocarbon group of formula (X) and n units of phenol of formula (XI) which are linked together to form a cycle.
- Gi represents a hydrocarbon group, linear, branched or cyclic, of 1 to 50 carbon atoms, and Gi can comprise one or more heteroatoms, in particular chosen from O, N and S; preferably Gi is chosen from alkyl and alkenyl groups, in particular a linear alkyl group comprising in particular from 12 to 40 carbon atoms, in particular from 18 to 30 carbon atoms; b is 0, 1 or 2;
- G2, G3, G4 and G5 are chosen from: OH, H or a hydrocarbon group of 1 to 50 carbon atoms which comprises one or more heteroatoms, provided that one or two of G2, G3, G4 and G5 is OH, m and n are integers which satisfy: m between 1 and 8, n is at least 3, m + n is between 4 and 20, preferably between 5 and 12.
- the hydrocarbon groups Gi may be the same or different.
- the units (X) are chosen from units of formula (XA) below: [Chem 24] wherein Gi, Q and b are as defined for formula (X).
- G5 is a hydroxyl group.
- G2, G3, G4 in formula (XI) represent, independently of each other, H or an alkyl or alkenyl group of 1 to 50 carbon atoms; in particular H or a linear alkyl group of 1 to 40 carbon atoms, in particular of 1 to 30 carbon atoms and more particularly of 4 to 25 carbon atoms.
- the (X) units may be the same or different.
- Units (XI) can be the same or different in a calixarene molecule.
- the Q groups can be chosen, independently of one another, from -S- and groups of formula -(CHG6)c- in which G ⁇ is chosen from a hydrogen atom and a hydrocarbon group of 1 to 10 carbon atoms and c is an integer of 1 to 4 carbon atoms, in particular each G ⁇ is H.
- the alkali metal and/or alkaline-earth metal hydroxybenzoate compounds are the alkali metal and/or alkaline-earth metal salts of the aforementioned hydroxybenzoic acid type compounds.
- the alkali metal is lithium, sodium or potassium, in particular potassium.
- the alkaline earth metal is calcium, barium, magnesium or strontium, preferably calcium.
- the compound of hydroxybenzoic acid type in the reaction with the boron compound and the amino compound, can be used in mixture with an alkylphenol.
- the mixture may, for example, comprise up to 50 molar % of alkylphenol, relative to the total number of moles of the mixture of alkylphenol and of compound of the hydroxybenzoic acid or alkali metal and/or alkaline-earth metal hydroxybenzoate type.
- the boron compound (in other words, based on boron) can be chosen in particular from boric acid (B(OH)3), hydrocarbon boronic acids, boric esters and hydrocarbon boronic esters, boron oxide and boric acid complexes.
- the boron compound can be chosen from boric acid; boron oxide; boric acid complexes; trialkyl borates, in particular in which the alkyl groups comprise independently of each other from 1 to 4 carbon atoms; boronic acids having a C1-C12 alkyl group; boric acids substituted with two alkyl groups, in particular C1 to C12; boric acids substituted with two aryl groups, in particular C6 to C12; boric acids substituted by one or two aralkyl groups, in particular C7 to C12, and derivatives of these compounds obtained by substitution of at least one alkyl group by one or more alkoxy groups.
- Alkyl and alkoxy groups can be linear, branched or cyclic.
- Boric acid complexes are in particular complexes of boron with one or more molecules comprising one or more alcohol functions.
- the boron compound is boric acid.
- the polyalkylamine compound may more particularly be of formula (XIIA):
- the di-alkylaminopolyalkylamine of formula (XIIA) can be dimethylaminopropylaminopropylamine (DM APAPA).
- the polyalkylamine compound may more particularly be of formula (XIIB): [Chem 27] in which :
- the tri-alkylaminopolyalkylamine of formula (XIIB) may in particular be triethyl netetramine.
- the amino compound may be a quaternary ammonium salt, as described in applications WO 2019/229173 and WO 2020/094796.
- the amine compound can be chosen from quaternary ammonium salts comprising four hydrocarbon groups, advantageously chosen from alkenyl and C1-C40 alkyl groups.
- the amino compound is chosen from the quaternary ammonium salts corresponding to the formula (XIII):
- W represents a counterion, in particular chosen from halogens, for example Cl′;
- Rio, Ru, R12 and Ro are chosen, independently of each other, from hydrocarbon groups comprising from 1 to 40 carbon atoms, advantageously from alkenyl and alkyl groups, linear, branched or cyclic, comprising from 1 to 40 carbon atoms. carbon.
- R10, Ru, R12 and R13 are chosen, independently of each other, from linear alkyl and alkenyl groups comprising from 1 to 8 carbon atoms, preferably from 2 to 6 carbon atoms.
- R10, R11, R12 and R13 are chosen, independently of each other, from linear alkyl and alkenyl groups comprising from 14 to 22 carbon atoms, preferably from 14 to 18 carbon atoms and more preferably from 16 to 18 carbon atoms.
- the amino compound can be chosen from compounds comprising two or three amine functions, at least one amine function being substituted by at least one hydrocarbon group and, optionally, one or more amine functions being substituted with at least one monoalkoxy or polyalkoxy group, as described in applications WO 2018/220007 and WO 2020/0947966.
- the amino compound is preferably chosen from compounds comprising two or three amine functions, at least one amine function being substituted by at least one hydrocarbon group comprising from 1 to 40 carbon atoms, advantageously an alkyl or alkenyl group C1-C40, and where one or more amine functions is (are) optionally substituted by a C2-C4 monoalkoxy or polyalkoxy group.
- the amine compound is chosen from the di-amines of formula (XIV)
- Xi represents a group selected from a hydrogen atom, an alkyl group or an alkenyl group Ru;
- Y represents a group chosen from a hydrogen atom, an alkyl group or an alkenyl group R13;
- Zi and Z2 represent, independently of each other, a hydrogen atom, an alkyl group or an alkenyl group R12;
- Rio, R11, R12 and R13 represent, independently of each other, hydrocarbon groups comprising from 1 to 40 carbon atoms, advantageously alkyl or alkenyl groups comprising from 1 to 40 carbon atoms,
- Rd and Re represent, independently of one another, alkyl or alkenyl groups comprising from 1 to 20 carbon atoms; when Zi and Z2 both represent R12 alkyl or alkenyl groups, they may be different.
- Rio, Ru, R12 and R13 are chosen, independently of each other, from alkyl and alkenyl groups, preferably linear, comprising from 4 to 30 carbon atoms, in particular from 8 to 22 carbon atoms, in particular from 14 to 22 carbon atoms, preferably from 14 to 18 carbon atoms and more preferably from 16 to 18 carbon atoms.
- the groups R10, R11, R12 and R13 are identical.
- Rd and Re are preferably chosen from linear alkyl and alkenyl groups, preferably linear alkyl groups, in particular comprising from 2 to 4 carbon atoms.
- Rd and Re are chosen from -CH2-CH2-, -CH(CH3)-CH2- and -CH2-CH2-CH2-.
- amino compound of formula (XIV) is of formula (XIVA):
- amino compound of formula (XV) is of formula (XVB):
- the amino compound can be chosen from mixtures of polyalkylamines substituted by two fatty alkyl and/or alkenyl chains, as described in applications WO 2018/220009 and WO 2020/094800.
- the mixture of polyalkylamines more particularly comprises one or more polyalkylamines of formula (III) or (IV) as described above.
- RO and R? represent, independently of each other, alkyl or alkenyl groups, linear or branched, preferably linear, comprising from 4 to 30 carbon atoms, preferably from 8 to 22 carbon atoms and more particularly from 14 to 18 carbon atoms, preferably 16 to 18 carbon atoms; n and z represent, independently of each other, 0, 1, 2 or 3; and when z is different from 0, o and p are, independently of each other, 0.1, 2 or 3; or derivatives thereof; in which the mixture of polyalkylamines comprises at least 3% by mass, in particular at least 5% by mass, in particular at least 7% by mass, preferably at least 10% by mass and more particularly at least 20% by mass, of branched polyalkylamines of formula (III) and/or (IV) relative to the total mass of the mixture of polyalkylamines of formula (III) and (IV).
- the mixture of polyalkylamines comprises, or even consists, of compounds of formula (III) or (IV) in which n, o, p and z are, independently of each other, 0, 1 or 2, preferably 0 or 1.
- R ⁇ and R7 which are preferably identical, can be derived from animal and vegetable oils and fats, in particular as described above, and in particular from tallow oil, oil coconut and palm oil, preferably tallow oil.
- Such amines may be commercially available from Akzo, for example under the trade reference Tetrameen® 2HBT.
- the compound used as a "TBN booster" additive in a lubricating composition according to the invention can thus be the product of the reaction of at least one hydroxybenzoic acid, optionally substituted by a hydrocarbon group or a metal salt.
- the reaction can for example be carried out by combining the compound of hydrobenzoic acid or hydroxybenzoate type and the boron compound in the desired ratio and in the presence of a suitable solvent.
- suitable solvents can be, for example, naphtha and polar solvents such as water and alcohols, for example methanol, ethanol, propanol, butanol.
- the reaction is carried out with a compound molar ratio of hydroxybenzoic acid type/boronated compound ranging from 30:1 to 1:30, preferably from 15:1 to 1:5, in particular from 10:1 to 1:5, plus particularly from 5:1 to 1:2 and even more preferably from 4:1 to 1:1.
- the boron compound is dissolved. Then, the amine compound is slowly added to the mixture to effect neutralization and formation of the desired reaction product.
- the amino compound is added in an amount such that the molar ratio compound of hydroxybenzoic acid type/amino compound is between 30:1 and 1:30, in particular from 10:1 to 1:5, preferably between 15:1 and 1:5, more preferably between 5:1 and 1:2 and more preferably between 4:1 and 1:1.
- the amino compound is added in an amount such that the boron compound/amino compound molar ratio is between 20:1 and 1:20, preferably between 10:1 and 1:10, more preferably between 5:1 and 1 :5 and more preferably between 2:1 and 1:2.
- the reaction can be carried out by maintaining the reaction medium at a temperature between approximately 20° C. and approximately 100° C., for example between approximately 50° C. and approximately 75° C., generally for a time ranging from 0.5 to 5 hours. , and more preferably between 1 and 4 hours.
- the resulting product contains a complex mixture of compounds which can be used as such in the lubricating composition according to the invention.
- the product results from the reaction of a mixture of reagents (not including the solvent or solvents) consisting of at least one compound of the hydroxybenzoic acid or alkali metal or alkaline-earth metal hydroxybenzoate type optionally substituted by a hydrocarbon group, in the at least one boron compound and at least one amine compound, and optionally an alkylphenol.
- a mixture of reagents consisting of at least one compound of the hydroxybenzoic acid or alkali metal or alkaline-earth metal hydroxybenzoate type optionally substituted by a hydrocarbon group, in the at least one boron compound and at least one amine compound, and optionally an alkylphenol.
- the “TBN booster” additive(s) used in a lubricating composition according to the invention consist of one or more polyalkylamines. Otherwise, according to a particular embodiment, a lubricating composition according to the invention does not comprise “TBN booster” additives other than additives of the polyalkylamine type, in particular as described above.
- a lubricating composition according to the invention may comprise, or even consist of:
- a lubricating composition according to the invention may comprise all types of additives suitable for the intended use for the lubricant, as detailed in the following text, for example for use in gas engine systems, for a mobile application and stationary, heavy-duty engine systems, four-stroke marine engine systems, etc.
- the additives are chosen so as not to have a significant impact on the sulphated ash content of the lubricating composition.
- additives can be introduced separately and/or in the form of a mixture of additives similar to those already available for sale for the formulations of commercial lubricants for vehicle engines, with a performance level as defined by the ACEA (Association of European Automobile Manufacturers) and/or F API (American Petroleum Institute), well known to those skilled in the art.
- ACEA Association of European Automobile Manufacturers
- F API American Petroleum Institute
- additives distinct from the said basic organic additive(s) improving the TBN and from the said carbodiimide additive(s), may be chosen in particular from metallic detergents, friction modifier additives, anti-wear additives, extreme pressure additives, antioxidants, viscosity index (VI) improvers, pour point depressants (PPD), dispersants, antifoaming agents, thickeners, corrosion inhibitors, copper passivators, and mixtures thereof.
- a lubricating composition according to the invention comprises one or more additives chosen from viscosity index improvers, pour point lowering additives, anti-wear additives, antioxidants and mixtures thereof.
- Metallic detergent additives chosen from viscosity index improvers, pour point lowering additives, anti-wear additives, antioxidants and mixtures thereof.
- Metal detergents are known to those skilled in the art. They are generally anionic compounds comprising a long lipophilic hydrocarbon chain and a hydrophilic head, the associated cation possibly being a metal cation of an alkali or alkaline earth metal.
- the alkali and alkaline-earth metals are preferably calcium, magnesium, sodium or barium.
- These metallic salts generally comprise the metal in a stoichiometric quantity (one then speaks of non-overbased or “neutral” detergents), or else in excess, therefore in a quantity greater than the stoichiometric quantity.
- the lubricating composition according to the invention comprises at least one metallic detergent additive chosen from overbased detergents and/or neutral detergents.
- the overbased detergent and/or the neutral detergent are compounds based on metals chosen from calcium, magnesium, sodium and barium, preferably based on calcium or magnesium.
- the overbased detergent is overbased with insoluble metal salts chosen from the group of alkali and alkaline-earth metal carbonates, preferably calcium carbonate.
- the overbased detergent used in a lubricating composition according to the invention may be chosen in particular from phenates, sulfonates, salicylates and mixed detergents (phenate-sulfonates-salicylates) overbased with calcium carbonate, more particularly with sulfonates and calcium carbonate overbased phenates.
- a lubricating composition according to the invention may comprise less than 15% by mass of metallic detergent(s), in particular less than 10% by mass, and more particularly from 0.5% to 5%, in particular less than 2% by mass, of metallic detergent(s), relative to the total mass of said lubricating composition.
- a lubricating composition according to the invention thus has a sulphated ash content, determined according to the ASTM D-874 standard, of less than or equal to 1.3% by mass, in particular less than or equal to 1% by mass and more particularly less than or equal to 0.8% by mass.
- a lubricating composition according to the invention may comprise, or even consist of:
- TBN total base number
- a lubricating composition under consideration according to the invention may comprise at least one friction modifier additive.
- the friction modifier additives can be chosen from compounds providing metallic elements and compounds free of ash, preferably from compounds free of ash.
- transition metals such as Mo, Sb. Sn, Fe, Cu, Zn whose ligands can be hydrocarbon compounds comprising oxygen, nitrogen, sulfur or phosphorus atoms.
- the friction modifier additives are chosen from ash-free compounds, generally of organic origin and which can be more particularly chosen from monoesters of fatty acids and polyols, alkoxylated amines, alkoxylated fatty amines, fatty epoxides, borate fatty epoxides, fatty amines or fatty acid glycerol esters.
- the fatty compounds comprise at least one hydrocarbon group comprising from 10 to 24 carbon atoms.
- a lubricating composition comprises at least one friction modifier additive, in particular based on molybdenum.
- the molybdenum-based compounds can be chosen from molybdenum dithiocarbamates (Mo-DTC), molybdenum dithiophosphates (Mo-DTP), and mixtures thereof.
- a lubricating composition considered according to the invention may comprise from 0.01 to 5% by mass, preferably from 0.01 to 5% by mass, more particularly from 0.1 to 2% by mass or even more particularly from 0 1 to 1.5% by mass, relative to the total mass of the lubricating composition, of friction modifier additives, advantageously including at least one molybdenum-based friction modifier additive.
- a lubricating composition considered according to the invention may comprise at least one antioxidant additive.
- Antioxidant additives are essentially dedicated to delaying the degradation of the lubricating composition in service. This degradation can in particular result in the formation of deposits, in the presence of sludge or in an increase in the viscosity of the lubricating composition. They act in particular as free radical inhibitors or destroyers of hydroperoxides.
- antioxidant additives commonly employed, mention may be made of antioxidants of the phenolic type, antioxidant additives of the amine type, phosphosulfur antioxidant additives. Some of these antioxidant additives, for example phosphosulfur antioxidant additives, can be ash generators.
- the 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 with at least one C1-C12 alkyl group, N,N' -dialkyl-aryl-diamines and mixtures thereof.
- the sterically hindered phenols are chosen from compounds comprising a phenol group of which at least one carbon vicinal to the carbon carrying the alcohol function is substituted by at least one C1-C10 alkyl group, preferably a C1-C6 alkyl group. , preferably a C4 alkyl group, preferably by the ter-butyl group.
- Amino compounds are another class of antioxidant additives that can be used, possibly in combination with phenolic antioxidant additives.
- Examples of amino compounds are aromatic amines, for example aromatic amines of formula NR 8 R 9 R 10 in which R 8 represents an aliphatic group or an optionally substituted aromatic group, R 9 represents an optionally substituted aromatic group, R 10 represents a hydrogen atom, an alkyl group, an aryl group or a group of formula R n S(O) z R 12 in which R 11 represents an alkylene group or an alkenylene group, R 12 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 considered according to the invention may contain all types of antioxidant additives known to those skilled in the art.
- the lubricating composition comprises at least one ash-free antioxidant additive.
- a lubricating composition considered according to the invention may comprise from 0.1 to 2% by mass, relative to the total mass of the composition, of at least one antioxidant additive.
- a lubricating composition under consideration according to the invention may comprise at least one pour point depressant additive (also called “PPD” agents for “Pour Point Depressant” in English).
- pour point depressant additive also called “PPD” agents for “Pour Point Depressant” in English.
- pour point reducing agents examples include polyalkyl methacrylates, poly acrylates, polyarylamides, polyalkylphenols, polyalkylnaphthalenes and alkylated polystyrenes.
- a lubricating composition considered according to the invention can also comprise at least one dispersing agent.
- the dispersing agents ensure the maintenance in suspension and the evacuation of the insoluble solid contaminants constituted by the secondary products of oxidation which are formed when the lubricating composition is in service. They can be chosen from Mannich bases, succinimides and their derivatives.
- a lubricating composition under consideration according to the invention may comprise from 0.2 to 10% by mass of dispersing agent(s), relative to the total mass of the composition.
- a lubricating composition under consideration according to the invention may also comprise at least one viscosity index (VI) improver.
- Viscosity index (VI) improvers in particular viscosity index improver polymers, help ensure good cold behavior and minimum viscosity at high temperatures.
- polymers improving the viscosity index mention may be made of polymeric esters, homopolymers or copolymers, hydrogenated or non-hydrogenated, of styrene, butadiene and isoprene, homopolymers or copolymers of olefins, such as such as ethylene or propylene, polyacrylates and polymethacrylates (PMA).
- a lubricating composition under consideration according to the invention may comprise from 1 to 15% by mass, of additive(s) improving the viscosity index, relative to the total mass of the lubricating composition.
- a lubricating composition considered according to the invention may also comprise at least one antifoam additive.
- the antifoam additives can be chosen from polar polymers such as polymethylsiloxanes or polyacrylates.
- a lubricating composition under consideration according to the invention may comprise from 0.01 to 3% by mass of antifoam additive(s), relative to the total mass of the lubricating composition.
- a lubricating composition according to the invention may comprise, or even consist of:
- TBN total base number
- additives distinct from said basic organic additive(s) improving TBN and from said carbodiimide additive(s), chosen from metallic detergent additives, friction modifiers, anti-wear additives, extreme pressure additives, antioxidants, viscosity index (VI) improvers, pour point depressants (PPD), dispersants, antifoaming agents, thickeners, corrosion inhibitors, copper passivators, and mixtures thereof .
- a lubricating composition formulated according to the invention comprises, or even consists of:
- TBN total base number
- a lubricating composition according to the invention may have a kinematic viscosity, measured at 40° C. according to the ASTM D445 standard, of between 20 mm 2 /s and 50 mm 2 /s, preferably between 25 mm 2 /s and 40 mm 2 /s.
- a lubricating composition according to the invention has a kinematic viscosity, measured at 100° C. according to the ASTM D445 standard, of between 2 mm 2 /s and 20 mm 2 /s, preferably between 4 mm 2 /s and 15 mm 2 /s.
- the lubricating compositions considered according to the invention can be intended for various motorization systems, mobile or stationary.
- the invention proves to be particularly advantageous for an implementation for motorization systems comprising an elastomeric material, for example elastomeric seals, exposed to said lubricant.
- the invention thus relates, according to another of its aspects, to the use of a composition as defined above, incorporating one or more carbodiimide additives as an additive improving the compatibility of the lubricating composition with respect to elastomers. , for lubricating a motorization system, in particular mobile or stationary.
- the lubricating compositions according to the invention may in particular be intended for motorization systems including an internal combustion engine, for example a diesel engine or a gas engine.
- the motorization system may in particular comprise a diesel fuel engine, typically a diesel engine for heavy goods vehicles, a marine engine, a gasoline engine, a gas engine, an ammonia engine.
- a diesel fuel engine typically a diesel engine for heavy goods vehicles, a marine engine, a gasoline engine, a gas engine, an ammonia engine.
- H can be motorization systems for light vehicles, heavy vehicles, boats.
- the lubricating composition considered according to the invention can be a lubricant for gas engine systems, mobile or stationary, in particular for natural gas engines (LNG or CNG), hydrogen engines, but also dual engines fuel gas/petrol, dual fuel gas/diesel.
- LNG or CNG natural gas engines
- hydrogen engines but also dual engines fuel gas/petrol, dual fuel gas/diesel.
- a lubricating composition according to the invention is implemented for motorization systems distinct from two-stroke marine engines.
- EGR exhaust gas recirculation
- Diesel engines with EGR can experience higher loads of acidic combustion products, transmitted to the lubricant from the exhaust gases, so lubricants with high levels of TBN are often desirable to effect the neutralization of these acids.
- the compatibility of engine lubricants with elastomers is evaluated according to standard CEC Ll 12-16. This test explores the performance of four types of elastomeric materials (RE6: fluoroelastomer; RE7: polyacrylate; RE8: nitrile and RE9: ethylene acrylic) when exposed to a lubricant.
- the reference lubricant is a lubricant marketed under the reference NATERIA MJ 40, intended for the lubrication of stationary gas engines.
- Formulations Cl, II, 12 and 13 are prepared by supplementing the reference lubricant with:
- N,N'-dimethyldipropylene triamine denoted DMAPAPA (formulations Cl, II and 12), in a mass content of 0.5% relative to the mass of the reference lubricant; or N,N,N′,N′-tetramethyldipropylene triamine, denoted TMDPT (formulation 13), in a mass content of 0.7% by mass relative to the mass of the reference lubricant;
- carbodiimide additive according to the invention N,N'-bis(2,6-diisopropylphenyl)carbodiimide
- Carbodiimide 1 and Carbodiimide 2 in a mass content of commercial product of 1% or 2% by mass relative to the total mass of the reference lubricant.
- a carbodiimide additive according to the invention in a lubricant makes it possible to achieve good compatibility of the lubricant with respect to the various elastomers, and this even in the presence of an amine additive.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2110701A FR3127952B1 (fr) | 2021-10-11 | 2021-10-11 | Carbodiimide comme additif dans des lubrifiants destinés à des systèmes de motorisation pour améliorer la compatibilité avec les élastomères |
| PCT/EP2022/078022 WO2023061899A1 (fr) | 2021-10-11 | 2022-10-10 | Carbodiimide comme additif dans des lubrifiants destinés à des systèmes de motorisation pour ameliorer la compatibilite avec les elastomeres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4416251A1 true EP4416251A1 (fr) | 2024-08-21 |
Family
ID=79830813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22801401.5A Pending EP4416251A1 (fr) | 2021-10-11 | 2022-10-10 | Carbodiimide comme additif dans des lubrifiants destinés à des systèmes de motorisation pour ameliorer la compatibilite avec les elastomeres |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250027005A1 (fr) |
| EP (1) | EP4416251A1 (fr) |
| JP (1) | JP2024537253A (fr) |
| KR (1) | KR20240099276A (fr) |
| CN (1) | CN118251483A (fr) |
| FR (1) | FR3127952B1 (fr) |
| WO (1) | WO2023061899A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3127953B1 (fr) | 2021-10-07 | 2025-07-25 | Totalenergies Marketing Services | Composé spiro comme additif détergent dans des lubrifiants destinés à des systèmes de motorisation |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1243811B (de) | 1964-06-16 | 1967-07-06 | Bayer Ag | Schmierstoffzusatzmittel |
| DE4435548A1 (de) | 1994-10-05 | 1996-04-11 | Rhein Chemie Rheinau Gmbh | Stabilisierte Schmierstoff-Grundsubstanz |
| US6235687B1 (en) | 1998-10-09 | 2001-05-22 | Exxon Research And Engineering Company | Method for producing lubrication oils possessing anti rust properties containing acidic anti rust additive and acid scavengers |
| US6143702A (en) | 1998-10-09 | 2000-11-07 | Exxon Research And Engineering Company | Lubricating oils of enhanced oxidation stability containing n-phenyl-naphthyl amines, or substituted derivatives of n-phenyl naphthyl amine and carbodiimide acid scavengers |
| KR20070049178A (ko) * | 2004-08-06 | 2007-05-10 | 바스프 악티엔게젤샤프트 | 연료 및 윤활유용 폴리아민 첨가제 |
| US20060122077A1 (en) | 2004-12-03 | 2006-06-08 | Bruce Wilburn | Compositions comprising at least one carbodiimide |
| US7456137B2 (en) * | 2004-12-03 | 2008-11-25 | Afton Chemical Corporation | Compositions comprising at least one carbodiimide |
| EP2290043B1 (fr) | 2009-08-24 | 2012-08-29 | Infineum International Limited | Composition d'huile de lubrification comprenant un métal dialkyldithiophosphate et un carbodiimide |
| FR2954346B1 (fr) * | 2009-12-18 | 2013-02-08 | Total Raffinage Marketing | Composition additive pour huile moteur |
| US8748362B2 (en) * | 2010-02-01 | 2014-06-10 | Exxonmobile Research And Engineering Company | Method for improving the fuel efficiency of engine oil compositions for large low and medium speed gas engines by reducing the traction coefficient |
| EP2989188A4 (fr) | 2013-04-22 | 2016-12-21 | Basf Se | Additif de compatibilité avec les joints pour améliorer la compatibilité avec les joints fluoropolymères de compositions lubrifiantes |
| US9464256B2 (en) * | 2013-05-07 | 2016-10-11 | Rhein Chemie Rheinau Gmbh | Methods for producing oil formulations by means of certain carbodiimides |
| EP3211062B1 (fr) | 2016-02-29 | 2022-07-27 | TotalEnergies OneTech | Lubrifiant pour moteur marin deux temps |
| US20170292083A1 (en) * | 2016-04-06 | 2017-10-12 | Afton Chemical Corporation | TBN and Performance Booster |
| KR102617908B1 (ko) | 2017-05-31 | 2023-12-26 | 토탈에너지스 마케팅 써비씨즈 | 폴리아민, 산성 및 붕소 작용기를 포함하는 화합물 및 이의 윤활 첨가제로서의 사용 |
| CN110709493B (zh) | 2017-05-31 | 2022-03-11 | 道达尔销售服务公司 | 包含多胺、酸性官能团和硼官能团的化合物及其作为润滑剂添加剂的用途 |
| WO2019229173A1 (fr) | 2018-05-30 | 2019-12-05 | Total Marketing Services | Composé comprenant des fonctions monoammonium quaternaire, acide et bore et son utilisation en tant qu'additif pour lubrifiant |
| US20220010231A1 (en) | 2018-11-09 | 2022-01-13 | Total Marketing Services | Compound comprising amine, carboxylate and boron functionalities and its use as a lubricant additive |
| CN113227336A (zh) | 2018-11-09 | 2021-08-06 | 道达尔销售服务公司 | 包含多胺、羧酸和硼官能团的化合物及其作为润滑剂添加剂的用途 |
| EP3959297B1 (fr) | 2019-04-26 | 2024-06-26 | TotalEnergies OneTech | Composition de lubrifiant et utilisation en tant qu'additif pour lubrifiant de liquides ioniques à base de guanidinium |
| JP7549657B2 (ja) | 2019-11-07 | 2024-09-11 | トタルエナジーズ・ワンテック | ポリアミン官能基、酸性官能基およびホウ素官能基を含む化合物およびその潤滑剤添加剤としての使用 |
-
2021
- 2021-10-11 FR FR2110701A patent/FR3127952B1/fr active Active
-
2022
- 2022-10-10 KR KR1020247015720A patent/KR20240099276A/ko active Pending
- 2022-10-10 CN CN202280068392.8A patent/CN118251483A/zh active Pending
- 2022-10-10 US US18/700,128 patent/US20250027005A1/en not_active Abandoned
- 2022-10-10 EP EP22801401.5A patent/EP4416251A1/fr active Pending
- 2022-10-10 WO PCT/EP2022/078022 patent/WO2023061899A1/fr not_active Ceased
- 2022-10-10 JP JP2024521261A patent/JP2024537253A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3127952B1 (fr) | 2025-06-20 |
| US20250027005A1 (en) | 2025-01-23 |
| FR3127952A1 (fr) | 2023-04-14 |
| JP2024537253A (ja) | 2024-10-10 |
| CN118251483A (zh) | 2024-06-25 |
| WO2023061899A1 (fr) | 2023-04-20 |
| KR20240099276A (ko) | 2024-06-28 |
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