WO2013164449A1 - Composition lubrifiante pour moteur - Google Patents
Composition lubrifiante pour moteur Download PDFInfo
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- WO2013164449A1 WO2013164449A1 PCT/EP2013/059254 EP2013059254W WO2013164449A1 WO 2013164449 A1 WO2013164449 A1 WO 2013164449A1 EP 2013059254 W EP2013059254 W EP 2013059254W WO 2013164449 A1 WO2013164449 A1 WO 2013164449A1
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- polyalkylene glycol
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- lubricating composition
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
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- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
- C10M145/32—Polyoxyalkylenes of alkylene oxides containing 4 or more carbon atoms
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
- C10M145/34—Polyoxyalkylenes of two or more specified different types
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/26—Overbased carboxylic acid salts
- C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
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- 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
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/54—Fuel economy
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- 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
- C10N2040/252—Diesel engines
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- 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
- C10N2040/252—Diesel engines
- C10N2040/253—Small diesel engines
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- 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
- C10N2040/255—Gasoline engines
Definitions
- the present invention relates to engine lubricating compositions, in particular for gasoline or diesel engine engines, the use of which simultaneously makes it possible to obtain satisfactory engine cleanliness and a reduction in the fuel consumption of said vehicles.
- compositions comprising at least one viscosity index improving polymer which provide good engine cleanliness and which allow a limitation of the fuel consumption of gasoline vehicles or diesel vehicles.
- An object of the present invention is the use of new additive compounds in a lubricating composition for formulating a lubricating composition which has good properties in terms of engine cleanliness.
- This objective is achieved through the use of at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, of which at least one butylene oxide in a lubricating composition.
- the Applicant Company has found that the use of these polyalkylenes glycols as an additive advantageously makes it possible to obtain a lubricating composition having good properties with regard to engine cleanliness.
- Another object of the present invention is the formulation of a lubricating composition having simultaneously good engine cleanliness properties and good fuel Eco properties.
- a lubricating composition for a motor in particular a gasoline engine or a diesel engine comprising a specific combination.
- polyalkylene glycol obtained by polymerization or copolymerization of alkylene oxides, including at least one butylene oxide and at least one viscosity index improving polymer.
- WO2011 / 011656 discloses such copolymers of propylene oxide and butylene oxide. These copolymers of propylene oxide and butylene oxide have the property of being soluble in Group I to IV base oils used in the formulation of lubricants.
- R 1, R 2 and R 3 independently represent a hydrogen atom or a hydrocarbon group having up to 40 carbon atoms
- R 4 is a hydrogen atom, a methyl group or an ethyl group
- - L is a linking group
- n is an integer between 4 and 40
- A is an alkoxy group having from 2 to 25 units derived from ethylene oxide, propylene oxide and / or butylene oxide and comprises homopolymers and random copolymers of at least two of the units above, and
- this document does not describe a lubricating composition
- a lubricating composition comprising at least one polyalkylene glycol which is a copolymer of butylene oxide and of propylene oxide whose weight ratio of butylene oxide to propylene oxide is selected in the range of values of the present invention.
- this document does not describe the use of a particular polyalkylene glycol to improve engine cleanliness, without increasing the consumption of gasoline or diesel fuel.
- EP0438709 discloses an engine oil comprising at least one base oil, at least one viscosity index improving polymer and at least one product resulting from the reaction of alkylphenols or bisphenol A with at least one butylene oxide or a butylene / propylene oxide to improve the cleanliness of the pistons of automobile engines.
- this document does not describe the lubricant compositions according to the invention. It does not describe the use of polyalkylene glycols as defined according to the invention in a lubricant composition to improve engine cleanliness and reduce fuel consumption.
- the amount of polyalkylene glycol in the lubricating composition must be limited to 1 to 30% by weight, relative to the total weight of the lubricating composition, the terminal 30 % being excluded.
- the invention relates to an engine lubricating composition
- an engine lubricating composition comprising at least one base oil, at least one viscosity index improving polymer and at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, of which at least one butylene oxide, the amount of polyalkylene glycol being 1 to 28% by weight, relative to the total weight of lubricating composition.
- the polyalkylene glycol is a copolymer of butylene oxide and propylene oxide.
- the weight ratio of butylene oxide to propylene oxide is from 3: 1 to 1: 3, preferably from 3: 1 to 1: 1.
- the polyalkylene glycol has a molar mass measured according to ASTM D4274 ranging from 300 to 1000 grams per mole, preferably from 500 to 750 grams per mole.
- the polyalkylene glycol has a kinematic viscosity at 100 ° C measured according to ASTM D445 of 1 to 12 cSt, preferably 3 to 7 cSt, more preferably 3.5 to 6.5 cSt.
- the lubricating composition comprises from 2 to 20% by weight of polyalkylene glycol, relative to the total weight of the lubricating composition, preferably from 3 to 15%, even more preferably from 5 to 12%, even more preferably from 6 to 15% by weight. at 10%.
- the viscosity index improving polymer is selected from the group consisting of copolymer olefins, copolymers of ethylene and alpha-olefin, copolymers of styrene and olefin, polyacrylates alone or in admixture. .
- the lubricating composition comprises from 1 to 15% by weight of viscosity index improving polymer, relative to the total weight of the lubricating composition, preferably from 2 to 10%, more preferably from 3 to 8%.
- the lubricating composition further comprises at least one additive selected from anti-wear additives, detergents, dispersants, antioxidants, friction modifiers, alone or as a mixture.
- the lubricant composition consists of:
- additives selected from anti-wear additives, detergents, dispersants, antioxidants, friction modifiers alone or in a mixture, the sum of components being 100% and the percentages being expressed relative to the total mass of lubricating composition.
- the invention also relates to the use of a lubricant composition as defined above for the lubrication of a motor of light vehicles or trucks, preferably gasoline or diesel light vehicles.
- the invention also relates to the use of at least one polyalkylene glycol, obtained by polymerization or copolymerization of alkylene oxides comprising from 3 to 8 carbon atoms, of which at least one butylene oxide in a lubricating composition to improve the engine cleanliness, without increasing gasoline or diesel fuel consumption, preferably to improve engine cleanliness by reducing fuel or diesel fuel consumption.
- this use is to improve the cleanliness of the engine, in particular the cleanliness of the pistons.
- Another object of the invention is a method of lubricating at least one mechanical part of a motor, said method comprising at least one step in which said mechanical part is brought into contact with at least one lubricating composition as defined herein. -above.
- improving engine cleanliness is meant in the sense of the present invention: the reduction of the formation of deposits, including the formation of high temperature deposits such as varnishes, lacquers or deposits of carbon, coke that form on hot surfaces of engine parts such as piston throat bottoms, turbos axes.
- the molecules of the lubricating compositions can oxidize in contact with the hot surfaces of the engine and generate the formation of insoluble products forming deposits. These deposits will foul the engine and cause problems of wear, seizure, scrub segments, turbo rotation problems for example.
- detergent additives are used to improve engine cleanliness.
- the applicant company proposes to use another type of additive for improve engine cleanliness.
- the lubricant composition according to the invention makes it possible to solve the problems of engine cleanliness, in particular this formation of deposits.
- the polyalkylene glycols of the compositions according to the invention have properties suitable for use in a motor oil. These are polymers or copolymers (statistics or blocks) of alkylene oxides, which can be prepared according to the known methods described in the application WO 2009/134716, page 2 line 26 to page 4 line 12, for example by etching. an alcohol initiator on the epoxy bond of an alkylene oxide and propagation of the reaction.
- polyalkylene glycols (PAG) of the compositions according to the invention correspond in particular to the general formula (A):
- Y 1 and Y 2 are, independently of one another, hydrogen or a hydrocarbon group, for example an alkyl or alkylphenyl group, having from 1 to 30 carbon atoms,
- n represents an integer greater than or equal to 2, preferably less than 60, preferably ranging from 5 to 30, preferentially ranging from 7 to 15,
- x represents one or more integers ranging from 1 to n
- R 2x _i and R 2x are, independently of each other, hydrogen, or hydrocarbon radicals, comprising 1 to 6 carbon atoms, preferably alkyl groups.
- R 2x and R 2x are preferably linear.
- At least at least one of R and R 2x 2x _i is hydrogen.
- R 2x is preferably hydrogen.
- the sum of the carbon number of R 2x _i and R 2x is from 1 to 6. For at least one value of x, the sum of the carbon number of R 2x _i and R 2x is 2.
- the corresponding alkylene oxide monomer is butylene oxide.
- the alkylene oxides used in the structure of the PAGs used in the compositions according to the invention contain from 3 to 8 carbon atoms. At least one of the alkylene oxides entering the structure of these PAGs is a butylene oxide, said butylene oxide being 1,2-butylene oxide or 2,3-butylene oxide, preferably 1,2-butylene oxide.
- the PAG obtained, in part or in full, from ethylene oxide do not have a lipophilic character sufficient to be used in engine oil formulations.
- they can not be used in combination with other mineral, synthetic or natural base oils.
- alkylene oxides comprising more than 8 carbon atoms is also not desired because, to produce bases having the molar mass and therefore the targeted viscosimetric grade for the motor applications, then there will be a number of reduced monomers (n low in formula (A) above), with side chains R 2x _i and R 2x long. This adversely affects the overall linear character of the PAG molecule and leads to viscosity indices (VI) that are too low for engine oil application.
- the polyalkylene glycols may be a copolymer of butylene oxide and of propylene oxide with a weight ratio of butylene oxide to propylene oxide of a value of 3: 1 to 1: 3, preferably of 3: 1. at 1: 1, the polyalkylene glycol having the general formula (A):
- Y 1 and Y 2 are, independently of one another, hydrogen, or an alkyl group having from 1 to 30 carbon atoms,
- n represents an integer greater than or equal to 2, preferably less than 60, preferably ranging from 5 to 30, preferentially ranging from 7 to 15,
- x represents one or more integers ranging from 1 to n
- R 2x _i and R 2x are, independently of each other, hydrogen, or hydrocarbon radicals, comprising 1 to 2 carbon atoms,
- the sum of the carbon number of R 2x _i and R 2x is equal to 2.
- the viscosity index VI (measured according to standard N FT 60136) of the PAGs according to the invention is greater than or equal to 100, preferably greater than or equal to 120.
- the PAGs according to the invention are obtained from alkylene oxides comprising at least one butylene oxide.
- butylene oxide (BO) and propylene oxide (PO) copolymers are particularly preferred because they exhibit both the good tribological and rheological properties of PAG containing ethylene oxide units and or polypropylene, and good solubility in conventional mineral, synthetic, and natural bases, and other oily compounds.
- PAGs are prepared by reacting one or more alcohols with a mixture of butylene oxide and propylene oxide.
- PAGs prepared with a mixture where this ratio is from 3: 1 to 1: 1 are particularly well miscible and soluble in base oils, including Group IV synthetic oils (polyalphaolefins).
- the PAGs of the compositions according to the invention are prepared from alcohol containing from 8 to 12 carbon atoms. 2-Ethylhexanol and dodecanol, alone or in a mixture, and in particular dodecanol, are particularly preferred since the PAGs prepared from these alcohols have very low traction coefficients.
- the PAGs according to the invention are such that their carbon to oxygen molar ratio is greater than 3: 1, preferably ranging from 3: 1 to 6: 1. This gives said PAG polarity and viscosity index properties particularly suitable for use in motor oil.
- the molar mass, measured according to the ASTM D2502 standard, of the PAGs according to the invention has a value preferably ranging from 300 to 1000 grams per mole (g / mol), preferably ranging from 350 to 600 g / mol (that is why they contain a limited number of alkylene oxide units n as described above in formula (A)).
- the molar mass, measured according to the ASTM D4274 standard, of the PAGs according to the invention has a value preferably ranging from 300 to 1000 grams per mole (g / mol), preferably ranging from 500 to 750 g / mol.
- KV100 of the compositions is measured according to ASTM D445.
- the use of light PAGs (KV100 approximately from 2 to 6.5 cSt) is preferably chosen to make it easier to formulate 5W or 0W cold grade multigrade grades according to the SAEJ300 classification, since the heavier PAGs have cold properties. (High CCS) that do not easily achieve these grades.
- a lubricant composition for an engine in particular for a gasoline engine or for a diesel engine, comprising at least one base oil, at least one viscosity index improving polymer and at least one polyalkylene glycol as defined.
- the amount of polyalkylene glycol being from 1 to 28% by weight, based on the total weight of lubricating composition. Less than 1% by weight is insufficient to achieve a significant effect in terms of fuel economy and engine cleanliness. Similarly, an amount greater than or equal to 30% does not provide a significant effect in terms of engine cleanliness and fuel economy. From 30% in mass, the "Fuel-Eco" effects are less marked, even degraded.
- the lubricating compositions according to the invention comprise from 2 to
- the lubricant composition according to the invention may consist of:
- polyalkylene glycol which is a copolymer of butylene oxide and propylene oxide with butylene oxide mass ratio of propylene oxide is from 3: 1 to 1: 3, preferably between 3: 1 to 1: 1, the polyalkylene glycol corresponding to the general formula (A):
- (AT) Y 1 and Y 2 are, independently of one another, hydrogen, or an alkyl group having from 1 to 30 carbon atoms,
- n represents an integer greater than or equal to 2, preferably less than 60, preferably ranging from 5 to 30, preferentially ranging from 7 to 15,
- x represents one or more integers ranging from 1 to n
- R 2x _i and R 2x are, independently of each other, hydrogen, or hydrocarbon radicals, comprising 1 to 2 carbon atoms,
- additives selected from anti-wear additives, detergents, dispersants, antioxidants, friction modifiers alone or in a mixture, the sum of components being 100% and the percentages being expressed relative to the total mass of lubricating composition.
- additives selected from anti-wear additives, detergents, dispersants, antioxidants, friction modifiers alone or in a mixture, the sum of components being 100% and the percentages being expressed relative to the total mass of lubricating composition.
- the polymers used in the compositions according to the present invention are polymers improving the viscosity index.
- These polymers are polymers well known to those skilled in the art and are selected from the group consisting of copolymers of ethylene and alpha-olefin, polyacrylates such as polymethacrylates, copolymer olefins (OCP), copolymers of ethylene propylene and a diene (ethylene propylene diene monomers (EPDM)), polybutenes, copolymers of styrene and olefin, hydrogenated or not, copolymers of styrene and acrylate.
- the copolymer olefins are preferably copolymers of ethylene and propylene.
- the amount by weight of ethylene, based on the total weight of copolymer, varies from 20 to 80%, preferably from 30 to 70%, preferably around 50%.
- the polyacrylates are preferably polymethacrylates, linear or comb, functionalized or non-functionalized.
- functionalized polymethacrylates it is also known as polymethacrylate dispersants, also called PAMAd, which are polymethacrylates grafted or functionalized for example by vinyl pyrrolidone type units.
- the styrene and olefin copolymers are preferably copolymers of styrene and butadiene or copolymers of styrene and isoprene, hydrogenated or otherwise, preferably hydrogenated, linear or starred.
- hydrogenated styrene and isoprene copolymers are used.
- hydrogenated styrene and isoprene copolymers are used in admixture with polymethacrylates (PMA).
- the mass ratio between the styrene-hydrogenated isoprene copolymer and the polymethacrylate ranges from 3: 1 to 1: 3, preferably 1: 1.
- the lubricating compositions according to the invention comprise from 1 to 15% by weight of viscosity index improving polymer, or viscosity index improving polymer blend, with respect to the total weight of the lubricating composition, preferably from 2 to 5% by weight. 10%, more preferably 3 to 8%.
- the lubricating compositions according to the present invention may comprise, in combination with the PAGs described above, one or more base oils, which may be oils of mineral or synthetic origin of groups I to V according to the classes defined in the classification. API (or their equivalents according to the ATIEL classification) as summarized below, alone or in mixture.
- the base oil (s) used in the lubricant compositions according to the invention may be chosen from the oils of synthetic origin of group VI according to the ATIEL classification.
- oils can be oils of vegetable, animal or mineral origin.
- the mineral base oils of the compositions according to the invention include all types of bases obtained by atmospheric and vacuum distillation of crude oil, followed by refining operations such as solvent extraction, deasphalting, solvent dewaxing, hydrotreatment, hydrocracking and hydroisomerization, hydrofinishing.
- the base oils of the compositions according to the present invention can also be synthetic oils, such as certain esters of carboxylic acids and alcohols, GTL bases obtainable by hydroisomerization of a Fisher-Tropsch wax, or polyalphaolefins.
- the polyalphaolefins used as base oils for example, are obtained from monomers having from 4 to 32 carbon atoms (for example octene, decene), and have a viscosity at 100 ° C of between 1.5 and 15 cSt. Their weight average molecular weight is typically between 250 and 3000.
- the lubricant compositions according to the present invention have a kinematic viscosity at 100 ° C of between 5.6 and 16.3 cSt measured by the ASTM D445 standard (grade SAE 20, 30 and 40), preferably between 9, 3 and 12.5 cSt (grade 30).
- the compositions according to the present invention are multigrade oils, grade 5W or 0W according to the SAEJ300 classification.
- compositions according to the present invention also preferably have a viscosity index (VI) greater than 130, preferably greater than 150, and preferably greater than 160 (measured according to ASTM D2270).
- VI viscosity index
- the lubricating compositions according to the invention comprise from 40 to 80% by weight of base oil, relative to the total mass of lubricating composition, preferably from 50 to 75% by weight, more preferably from 60 to 70%.
- the lubricant compositions according to the invention may also contain any type of additive adapted to their use, in particular as motor oil, preferably a motor vehicle engine.
- additives can be added individually, or in the form of additive packages, guaranteeing a certain level of performance to the lubricating compositions, as required, for example by the ACEA (Association of European Automakers). These are for example and not limited to:
- Dispersants for example succinimides, succinimide derivatives such as PIBs (polyisobutenes) succinimides, or Mannich bases, which maintain the suspension and evacuation of the insoluble solid contaminants formed by the secondary products of oxidation that forms when the engine oil is in use.
- succinimides succinimide derivatives such as PIBs (polyisobutenes) succinimides, or Mannich bases, which maintain the suspension and evacuation of the insoluble solid contaminants formed by the secondary products of oxidation that forms when the engine oil is in use.
- PIBs polyisobutenes
- Mannich bases which maintain the suspension and evacuation of the insoluble solid contaminants formed by the secondary products of oxidation that forms when the engine oil is in use.
- antioxidants that delay the degradation of oils in service, degradation that can result in the formation of deposits, the presence of sludge, or an increase in the viscosity of the oil. They act as free radical inhibitors or destroyers of hydroperoxides.
- antioxidants include the antioxidants of phenolic type, or amine type, sterically hindered.
- Another class of antioxidants is that of oil-soluble copper compounds, for example copper thio- or dithiophosphates, copper and carboxylic acid salts, dithiocarbamates, sulphonates, phenates, copper acetylacetonates.
- the copper salts I and II, succinic acid or anhydride are also used.
- Anti-wear additives which protect the friction surfaces by formation of a protective film adsorbed on these surfaces.
- This category includes various phosphorus, sulfur, nitrogen, chlorine and boron compounds.
- Friction modifiers such as MoDTC, fatty amines or esters of fatty acids and polyols such as esters of fatty acids and glycerol, in particular glycerol monooleate.
- Detergents which are typically sulfonates, salicylates, naphthenates, phenates, overbased or neutral carboxylates.
- Another object of the invention is a method of lubricating at least one mechanical part of an engine comprising at least one step in which said mechanical part is brought into contact with at least one lubricating composition as defined above.
- These parts are especially the pistons.
- the method according to the invention makes it possible simultaneously to obtain satisfactory engine cleanliness and a reduction in the fuel consumption of said vehicles.
- Another subject of the invention advantageously relates to the use of at least one polyalkylene glycol, which is a copolymer of butylene oxide and of propylene oxide with a weight ratio of butylene oxide to propylene oxide of 3: 1 to 1: 3, preferably 3: 1 to 1: 1 in a lubricant composition to improve engine cleanliness, without increasing gasoline or diesel fuel consumption, preferably to improve engine cleanliness by reducing engine fuel consumption.
- the polyalkylene glycol corresponding to the general formula (A):
- Y 1 and Y 2 are, independently of one another, hydrogen, or an alkyl group having from 1 to 30 carbon atoms,
- n represents an integer greater than or equal to 2, preferably less than 60, preferably ranging from 5 to 30, preferentially ranging from 7 to 15,
- x represents one or more integers ranging from 1 to n
- R 2x _i and R 2x are, independently of each other, hydrogen, or hydrocarbon radicals, comprising 1 to 2 carbon atoms,
- the sum of the carbon number of R 2x _i and R 2x is equal to 2.
- the set of characteristics and preferences presented for the lubricant composition also applies to the use of at least one PAG according to the invention according to the invention.
- Ti control compositions and L x and L 2 compositions are prepared from: a mixture of Group III base oils,
- an additive package comprising ZnDTP type anti-wear additives, amine and phenolic antioxidants, succinimide dispersants, salicylate detergents,
- MoDTC molybdenum dithiocarbamate
- styrene / isoprene viscosity index improving polymer with hydrogenation having a mass Mw equal to 498700 (measured according to the ASTM D5296 standard), with a mass Mn equal to 325 900 (measured according to the ASTM D5296 standard), polydispersity index equal to 1.5.
- a polyalkylmethacrylate grafted with vinyl pyrrolidone units (PAMAd), with a mass Mw equal to 206900 (measured according to the ASTM D5296 standard), with a mass Mn equal to 75320 (measured according to the ASTM D5296 standard), with a polydispersity index equal to 2 , 7,
- PAG BO / PO butylene oxide / propylene oxide having a mass ratio of 50/50, of KV100 equal to 6 cSt (measured according to the ASTM D445 standard) and of molecular weight equal to 750 g / mol measured according to the ASTM D4274).
- Different engine speed and engine load conditions are scanned during which the specific fuel consumption is measured.
- the speed range is 1000 to 2400 rpm.
- the engine load range is from 16 to 190 Nm.
- Engine oil and coolant are stabilized at different temperatures (45 ° C, 60 ° C and 75 ° C) to ensure repeatability of the engine. measured.
- the specific fuel consumption between the lubricant to be tested and a reference oil 5W-30 is compared.
- a weighted average is used to express as a percentage the overall gain provided by the test lubricant relative to the reference.
- the fuel consumption gains of the lubricant compositions T x , L x and L 2 are given in Table II, expressed as a percentage relative to a grade 5W-30 reference oil.
- the cleanliness of the engine is also measured using the Panel laboratory test
- PCT Coking Test
- the lubricant to be tested flows on an inclined metal plate heated to 288 ° C with a flow rate of ImL / min.
- the volume of oil of 100 ml circulates in closed circuit on this plate by means of a pump during a test duration of 24h.
- the plate is rinsed with a solvent and the varnishes and carbon deposits deposited on the casting are scored using a Coordinating Research Council (CC).
- CC Coordinating Research Council
- the cleanliness of the engine is also measured using the TDi engine test according to CEC method L-78-99, which measures, in particular, the cleanliness of the pistons.
- a control composition T 2 and compositions C 1 to C 4 are prepared from the same constituents as above, but with another polyalkylene glycol: a PAG BO / PO having a mass ratio 50/50, of KV100 equal to 4 cSt. (measured according to ASTM D445) and molar mass equal to 505 g / mol (measured according to ASTM D4274).
- a PAG BO / PO having a mass ratio 50/50, of KV100 equal to 4 cSt. (measured according to ASTM D445) and molar mass equal to 505 g / mol (measured according to ASTM D4274).
- the proportions by weight percent of the various constituents are indicated in Table III below.
- the proportions of the base oil mixture and the viscosity index improving polymer are adjusted so that the lubricating compositions T 2 , C 1 to C 4 have equivalent viscosities for a grade 5W-30.
- the motor is driven by means of a generator to impose a rotation speed of between 750 and 3000 rpm while a torque sensor is used to measure the friction torque generated by the movement of the parts in the engine.
- the engine oil and coolant are stabilized at different temperatures (35 ° C, 50 ° C, 80 ° C and 115 ° C) to ensure good repeatability of the measurement.
- the friction torque induced by the test lubricant is compared for each speed and each temperature to the torque induced by the grade 5W-30 reference lubricant.
- the final result obtained by the test lubricant is obtained by the average of the gains. at each operating point expressed relative to the reference lubricant.
- a gain positive means that the engine rubs less and that the lubricant used will reduce fuel consumption.
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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
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2871094 CA2871094A1 (fr) | 2012-05-04 | 2013-05-03 | Composition lubrifiante pour moteur |
BR112014027297A BR112014027297A2 (pt) | 2012-05-04 | 2013-05-03 | composição de lubrificante de motor |
EP13721663.6A EP2844724B1 (fr) | 2012-05-04 | 2013-05-03 | Composition lubrifiante pour moteur |
MX2014013432A MX358777B (es) | 2012-05-04 | 2013-05-03 | Composicion lubricante para motor. |
CN201380027811.4A CN104364357A (zh) | 2012-05-04 | 2013-05-03 | 发动机润滑剂组合物 |
RU2014147246A RU2638542C2 (ru) | 2012-05-04 | 2013-05-03 | Смазочная композиция для двигателя |
JP2015509448A JP6306570B2 (ja) | 2012-05-04 | 2013-05-03 | エンジン用潤滑剤組成物 |
US14/398,176 US9957462B2 (en) | 2012-05-04 | 2013-05-03 | Engine lubricant composition |
KR1020147030991A KR102081255B1 (ko) | 2012-05-04 | 2013-05-03 | 엔진 윤활유 조성물 |
IN9778DEN2014 IN2014DN09778A (fr) | 2012-05-04 | 2014-11-19 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1254152 | 2012-05-04 | ||
FR1254152A FR2990215B1 (fr) | 2012-05-04 | 2012-05-04 | Composition lubrifiante pour moteur |
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WO2013164449A1 true WO2013164449A1 (fr) | 2013-11-07 |
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PCT/EP2013/059254 WO2013164449A1 (fr) | 2012-05-04 | 2013-05-03 | Composition lubrifiante pour moteur |
Country Status (13)
Country | Link |
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US (1) | US9957462B2 (fr) |
EP (1) | EP2844724B1 (fr) |
JP (1) | JP6306570B2 (fr) |
KR (1) | KR102081255B1 (fr) |
CN (2) | CN111607451A (fr) |
AR (1) | AR092003A1 (fr) |
BR (1) | BR112014027297A2 (fr) |
CA (1) | CA2871094A1 (fr) |
FR (1) | FR2990215B1 (fr) |
IN (1) | IN2014DN09778A (fr) |
MX (1) | MX358777B (fr) |
RU (1) | RU2638542C2 (fr) |
WO (1) | WO2013164449A1 (fr) |
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WO2017157979A1 (fr) | 2016-03-15 | 2017-09-21 | Total Marketing Services | Composition lubrifiante a base de polyalkylene glycols |
WO2017157892A1 (fr) | 2016-03-15 | 2017-09-21 | Total Marketing Services | Composition lubrifiante a base de polyalkylene glycols |
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FR2990213B1 (fr) | 2012-05-04 | 2015-04-24 | Total Raffinage Marketing | Composition lubrifiante pour moteur |
FR2998303B1 (fr) | 2012-11-16 | 2015-04-10 | Total Raffinage Marketing | Composition lubrifiante |
FR3000103B1 (fr) | 2012-12-21 | 2015-04-03 | Total Raffinage Marketing | Composition lubrifiante a base d'ether de polyglycerol |
WO2016018669A1 (fr) * | 2014-07-31 | 2016-02-04 | Dow Global Technologies Llc | Polyalkylène glycols coiffés solubles dans l'huile à basse viscosité et indice de viscosité élevé |
US11193083B2 (en) * | 2014-07-31 | 2021-12-07 | Dow Global Technologies Llc | Alkyl capped oil soluble polymer viscosity index improving additives for base oils in industrial lubricant applications |
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US10876062B2 (en) * | 2017-03-24 | 2020-12-29 | Exxonmobil Chemical Patents Inc. | Cold cranking simulator viscosity boosting base stocks and lubricating oil formulations containing the same |
US10808196B2 (en) * | 2017-03-28 | 2020-10-20 | Exxonmobil Chemical Patents Inc. | Cold cranking simulator viscosity reducing base stocks and lubricating oil formulations containing the same |
WO2019126924A1 (fr) | 2017-12-25 | 2019-07-04 | Dow Global Technologies Llc | Polyalkylène glycols solubles dans l'huile modifiés |
US11584896B2 (en) | 2019-03-05 | 2023-02-21 | Dow Global Technologies Llc | Hydrocarbon lubricant compositions and method to make them |
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JP2022155080A (ja) * | 2021-03-30 | 2022-10-13 | 出光興産株式会社 | 潤滑油組成物 |
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KR20170049501A (ko) * | 2014-07-31 | 2017-05-10 | 토탈 마케팅 서비스 | 자동차용 윤활 조성물 |
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FR3024461A1 (fr) * | 2014-07-31 | 2016-02-05 | Total Marketing Services | Compositions lubrifiantes pour vehicule a moteur |
KR102416370B1 (ko) * | 2014-07-31 | 2022-07-04 | 토탈에너지스 마케팅 써비씨즈 | 자동차용 윤활 조성물 |
US10202561B2 (en) | 2014-07-31 | 2019-02-12 | Total Marketing Services | Lubricating compositions for motor vehicles |
JP2017522428A (ja) * | 2014-07-31 | 2017-08-10 | トタル マルケティン セルビスス | 電動車両用の潤滑組成物 |
FR3030569A1 (fr) * | 2014-12-23 | 2016-06-24 | Total Marketing Services | Composition lubrifiante a materiau a changement de phase |
WO2016102528A1 (fr) * | 2014-12-23 | 2016-06-30 | Total Marketing Services | Composition lubrifiante a matériau a changement de phase |
CN107207986A (zh) * | 2014-12-23 | 2017-09-26 | 道达尔销售服务公司 | 具有相变材料的润滑组合物 |
WO2016102529A1 (fr) * | 2014-12-23 | 2016-06-30 | Total Marketing Services | Composition lubrifiante a matériau a changement de phase |
FR3030570A1 (fr) * | 2014-12-23 | 2016-06-24 | Total Marketing Services | Composition lubrifiante a materiau a changement de phase |
WO2017157979A1 (fr) | 2016-03-15 | 2017-09-21 | Total Marketing Services | Composition lubrifiante a base de polyalkylene glycols |
WO2017157892A1 (fr) | 2016-03-15 | 2017-09-21 | Total Marketing Services | Composition lubrifiante a base de polyalkylene glycols |
EP3430109A1 (fr) * | 2016-03-15 | 2019-01-23 | Total Marketing Services | Composition lubrifiante a base de polyalkylene glycols |
US10982169B2 (en) | 2016-03-15 | 2021-04-20 | Total Marketing Services | Polyalkylene glycol-based lubricant composition |
Also Published As
Publication number | Publication date |
---|---|
FR2990215B1 (fr) | 2015-05-01 |
CN111607451A (zh) | 2020-09-01 |
RU2014147246A (ru) | 2016-06-27 |
BR112014027297A2 (pt) | 2017-06-27 |
CN104364357A (zh) | 2015-02-18 |
US20150119303A1 (en) | 2015-04-30 |
JP6306570B2 (ja) | 2018-04-04 |
EP2844724B1 (fr) | 2021-03-03 |
MX2014013432A (es) | 2015-04-14 |
RU2638542C2 (ru) | 2017-12-14 |
IN2014DN09778A (fr) | 2015-07-31 |
KR102081255B1 (ko) | 2020-02-25 |
KR20150020534A (ko) | 2015-02-26 |
US9957462B2 (en) | 2018-05-01 |
JP2015516006A (ja) | 2015-06-04 |
EP2844724A1 (fr) | 2015-03-11 |
MX358777B (es) | 2018-09-04 |
FR2990215A1 (fr) | 2013-11-08 |
AR092003A1 (es) | 2015-03-18 |
CA2871094A1 (fr) | 2013-11-07 |
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