EP3724303A1 - Composition de graisse présentant une adhésivité améliorée - Google Patents
Composition de graisse présentant une adhésivité amélioréeInfo
- Publication number
- EP3724303A1 EP3724303A1 EP18811320.3A EP18811320A EP3724303A1 EP 3724303 A1 EP3724303 A1 EP 3724303A1 EP 18811320 A EP18811320 A EP 18811320A EP 3724303 A1 EP3724303 A1 EP 3724303A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- composition according
- dicarboxylic acid
- composition
- grease
- 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.)
- Granted
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
- 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
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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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
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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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
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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
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
- C10M115/10—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing sulfur
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
- C10M129/54—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring containing hydroxy groups
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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
- C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
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- 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
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/06—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing butene
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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
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—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
- C10M145/16—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 polycarboxylic
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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
- 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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
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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
- C10M2203/106—Naphthenic fractions
- C10M2203/1065—Naphthenic fractions used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/108—Residual fractions, e.g. bright stocks
- C10M2203/1085—Residual fractions, e.g. bright stocks used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
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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
- 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
- C10M2209/086—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 polycarboxylic, e.g. maleic acid
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- 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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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
- C10M2219/0445—Sulfonic acids, Derivatives thereof, e.g. neutral salts used as thickening agents
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbased sulfonic acid salts
- C10M2219/0466—Overbased sulfonic acid salts used as thickening agents
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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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
- C10N2030/04—Detergent property or dispersant property
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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
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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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
- C10N2030/08—Resistance to extreme temperature
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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
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- 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
- C10N2030/26—Waterproofing or water resistance
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy
Definitions
- this particular ester also makes it possible to preserve the other properties of the fat, in particular their mechanical stability.
- some of the properties of the fats thus formulated can be further improved, in particular their mechanical stability.
- the present invention further relates to use in a fat composition
- a fat composition comprising:
- the present invention finally relates to a method of lubricating a mechanical part, comprising at least one step of contacting the mechanical part with a grease composition as defined according to the present invention.
- bearing one must be understood as “comprising at least one”.
- Ga-olefin is linear.
- Ga-olefin, or the mixture of ⁇ -olefins constituting the dicarboxylic acid copolymer according to the invention has a weight average molecular weight of between 180 g / mol and 800 g / mol, in between 200 g / mol and 500 g / mol, more preferably between 200 g / mol and 300 g / mol, more preferably between 220 g / mol and 260 g / mol.
- ⁇ - ⁇ -ethylenically unsaturated dicarboxylic acid esters are compounds known to those skilled in the art and commonly used for the preparation of ester base oils.
- a-b-ethylenically unsaturated dicarboxylic acid ester denotes an ester (b) obtained by esterification reaction between an ⁇ -b-ethylenically unsaturated dicarboxylic acid or one of its derivatives and an alcohol.
- An ⁇ - ⁇ -ethylenically unsaturated carboxylic acid derivative may be more particularly chosen from maleic anhydride or itaconic anhydride.
- the alcohol may be chosen from linear or branched, ethoxylated alcohols having a degree of ethoxylation of between 1 and 45, preferably between 1 and 20.
- degree of ethoxylation is meant the number of ethylene oxide units of a polyethylene oxide chain, which is etherified at one of its ends by an alcohol, while the hydroxyl group of the other end of the polyethylene oxide chain is esterified with an acid.
- the ethoxylated alcohol ester groups are the only ester groups of the ⁇ -b-ethylenically unsaturated dicarboxylic acid ester.
- the molar ratio (a) ⁇ -olefin / (b) ester formed by the esterification of an ⁇ -b-ethylenically unsaturated dicarboxylic acid or one of its derivatives with an alcohol is between 0.5 and 2.
- a dicarboxylic acid ester copolymer according to the invention has a kinematic viscosity measured according to ASTM D-445 at 100 ° C. of between 20 mm 2 / s and 3000 mm 2 / s, preferably between 30 mm 2 / s and 50 mm 2 / s.
- a dicarboxylic acid ester copolymer according to the invention has a pour point of between -3 ° C. and -10 ° C. and a kinematic viscosity measured according to the ASTM D-445 standard at 40 ° C between 350 mm 2 / s and 450 mm 2 / s.
- the dicarboxylic acid ester copolymer or copolymers are present in a grease composition according to the invention in a content ranging from 2% to 20% by weight, preferably from 5% to 15% by weight, more preferably from 8% to 10% by weight, relative to the total weight of the composition.
- Base oil a content ranging from 2% to 20% by weight, preferably from 5% to 15% by weight, more preferably from 8% to 10% by weight, relative to the total weight of the composition.
- a grease according to the present invention comprises (i) at least one base oil.
- the ATI EL classification is defined in "The ATI EL Code of Practice", Issue 18, November 2012.
- Mineral base oils include any type of bases obtained by atmospheric and vacuum distillation of crude oil, followed by refining operations such as solvent extraction, deasphalting, solvent dewaxing, hydrotreating, hydrocracking and hydroisomerization, hydrofining.
- a grease composition according to the invention contains a mixture of at least one mineral oil and at least one synthetic oil, for example at least one polyalphaolefin (PAO) and at least one white mineral oil.
- PAO polyalphaolefin
- the base oil (s) are present in a grease composition according to the invention in a content ranging from 25% to 75% by weight, preferably from 30% to 60% by weight, more preferably from 40% to 60% by weight, relative to the total weight of the composition.
- a fat according to the present invention comprises (ii) at least one calcium sulphonate soap.
- This compound is known to those skilled in the art as a detergent and consists of a calcium salt of a sulfonate.
- Calcium sulphonate soap can be prepared separately, or in situ during the manufacture of the fat.
- Fats thickened with calcium sulphonate soaps have a very good mechanical stability compared, for example, to greases comprising polyurea thickeners, which allows easy use in applications where the fat is in an unconfined enclosure .
- the polyureas are prepared from isocyanate, an extremely toxic compound, and it is therefore not It is desirable to use thickeners based on polyureas to obtain a biodegradable, non-toxic grease and free from products classified according to the CLP Regulation (EC No 1272/2008).
- a grease according to the invention is therefore preferably free of thickener (s) based on polyurea.
- the excess metal providing the overbased detergent character is in the form of oil insoluble metal salts, for example carbonate, hydroxide, oxalate, acetate, glutamate, preferably carbonate.
- the overbased calcium sulfonate is a calcium sulfonate overbased with calcium carbonate.
- the overbased calcium sulfonate has a BN of at least 300 mg KOH / g detergent, preferably from 300 to 500 mg KOH / g detergent, preferably from 300 to 400 mg KOH / g detergent.
- Examples of calcium sulfonate soap can be particularly used in a grease according to the present invention include those sold under the name SYNCAL ® OB, especially SYNCAL ® OB 405 and SYNCAL ® OB 408, the company Kimes Technologies those sold under the name Lubrizol ® 75, especially LUBRIZOL ® 75M and WO LUBRIZOL ® 75 by the company Lubrizol Corporation or those sold under the name HYBASE ®, particularly HYBASE ® GF 400, by Chemtura company.
- the content of calcium sulphonate soap (s) can be adjusted according to the grade of the fat that is desired. Such adjustment is clearly within the skill of the skilled person.
- the calcium sulphonate soap (s) are generally present in a fat composition according to the invention in a content ranging from 10% to 50% by weight, preferably from 15% to 40% by weight. by weight, preferably from 25% to 35% by weight, relative to the total weight of the grease composition.
- a grease composition according to the invention comprises:
- At least one base oil in particular a mixture of at least one mineral base oil and at least one PAO base oil or a mixture of minus a naphthenic mineral oil and at least one paraffinic mineral oil,
- a grease composition according to the invention comprises:
- At least one base oil in particular a mixture of at least one mineral base oil and at least one PAO base oil or a mixture of minus a naphthenic mineral oil and at least one paraffinic mineral oil,
- a grease composition according to the invention may also contain antioxidant additives, for example phenolic or amine antioxidants, anti-rust additives, for example oxygenated compounds such as esters, for example sorbitan monoleate and oxidized waxes, or amine phosphates, anti-corrosion additives such as tolyltriazoles or copper passivates.
- antioxidant additives for example phenolic or amine antioxidants
- anti-rust additives for example oxygenated compounds such as esters, for example sorbitan monoleate and oxidized waxes, or amine phosphates
- anti-corrosion additives such as tolyltriazoles or copper passivates.
- a grease composition according to the present invention may also contain anti-wear and extreme pressure additives, in particular phosphorus compounds, such as, for example, alkyl phosphates or alkyl phosphonates, phosphoric acid, phosphorous acid, monohydric and , di and triesters of phosphorous acid and phosphoric acid, and their salts.
- phosphorus compounds such as, for example, alkyl phosphates or alkyl phosphonates, phosphoric acid, phosphorous acid, monohydric and , di and triesters of phosphorous acid and phosphoric acid, and their salts.
- a grease composition according to the present invention may also contain sulfur antiwear and extreme pressure additives, for example dithiocarbamates, thiadiazoles and benzothiazoles, sulfurized olefins.
- sulfur antiwear and extreme pressure additives for example dithiocarbamates, thiadiazoles and benzothiazoles, sulfurized olefins.
- corrosion inhibitors can be particularly used in a grease according to the present invention include those sold under the name INFINEUM ®, particularly INFINEUM ® M7121, the company INFINEUM.
- These various compounds are generally present at contents of less than 2%, or else at 0.5% by weight, relative to the total weight of the fat composition.
- a grease according to the invention may also contain at least one polymer, for example chosen from polyolefins, polyisobutene (PIB), polyethylenes, polypropylene, heavy polyalphaolefins (PAO), copolymeric olefins (OCP), for example hydrogenated diene - styrene, and polymethacrylates (PMA).
- polyolefins polyisobutene
- PEO heavy polyalphaolefins
- OCP copolymeric olefins
- PMA polymethacrylates
- This polymer (s) are generally included in a grease composition according to the invention at contents of between 1% and 35% by weight relative to its total weight.
- additives and in particular the polymers, will be adjusted in their nature and their quantity by those skilled in the art, so as to preserve the properties imparted to the fat composition by the presence of at least one acid ester copolymer dicarboxylic acid as defined above.
- the consistency of a grease measures its hardness or fluidity at rest. It is quantified by the depth of penetration of a cone of given dimensions and mass.
- the fat is previously subjected to mixing.
- the conditions for measuring the consistency of a grease are defined by ASTM D 217. Depending on their consistency, the fats are divided into 9 classes or 9 NLGI grades (National Lubricating Grease Institute) commonly used in the field of fats. These grades are shown in Table II below.
- a grease according to the invention preferably has a consistency of between 220 and 340 tenths of a millimeter, preferably between 240 and 300 tenths of a millimeter, more preferably between 250 and 290 tenths of a millimeter, measured according to the ASTM D217 standard. Preferably, it is NLGI grade 1, 2 or 3.
- the adhesiveness is measured by DIN 51807. It is a question of determining the mass percentage of fat lost during its implementation in the presence of water.
- the adhesiveness of a grease according to the invention is much greater than the tackiness of a grease not incorporating such a copolymer.
- the adhesiveness of a grease composition is improved when its fat loss, measured according to DIN 51807, is less than 5%, preferably at least 10%, more preferably at least 20% of the fat loss of the same dicarboxylic acid ester copolymer-free composition defined according to the present invention.
- At least one dicarboxylic acid ester copolymer comprising constituent units derived from (a) at least one ⁇ -olefin and (b) at least one ester formed by the esterification of an ab-ethylenically dicarboxylic acid unsaturated or one of its derivatives with an alcohol, the molar ratio (a) / (b) being between 0.5 and 4, to improve the adhesiveness, measured according to DIN 51807, of said fat composition.
- a grease according to the invention is particularly useful for the lubrication of rolling and sliding bearings, open gears, wire ropes and chain drives, and more generally applications that do not include a sealing system.
- the aim here is to evaluate the physicochemical characteristics of fats, and more particularly their grade.
- the grade is determined according to ASTM D217 after 60 rounds.
- the penetrability is measured according to the ISO 2137 standard after 100,000 shots and is expressed in 1/10 mm.
- the "Shell Roller” test is carried out according to ASTM D1831 after 100 hours at 80 ° C. and the results are expressed in 1/10 mm. This test consists mainly of rolling the grease using rollers and to evaluate the stability of a grease when it is rolled.
- the bleeding after 50 h at 100 ° C. is evaluated according to the ASTM D6184 standard and is expressed as a percentage corresponding to a mass percentage of oil loss.
- the bleeding after 168 h at 40 ° C is evaluated according to standard NF T60-191 and is expressed as a percentage corresponding to a mass percentage of oil loss.
- the 4-ball EP test is performed according to DIN 51350/4 and the extreme pressure is expressed in daN.
- the base oil 1 is a polyalphaolefin.
- Base oil 4 is a light paraffinic base oil, called "Bright Stock Solvent”.
- the dicarboxylic acid ester copolymer according to the invention has the characteristics presented in Table 1 below:
- the antioxidant is an alkylated diphenylamine.
- the polymer is a polybutene.
- compositions of the greases according to the invention are detailed in Table 2 below, in percentage by weight:
- Fats A, B and C according to the invention are prepared according to the following protocol:
- Base oil 1 a majority of the base oil 2 and calcium sulphonate soap are available at ambient temperature;
- the pilot is closed and the mixture is heated to 90 ° C .;
- the lime is added and the reactor is closed;
- compositions of the greases outside the invention are detailed in Table 4 below, in percentage by weight:
- Fat D is prepared according to a conventional two step grease preparation process as described in the present application.
- Greases E and L outside the invention are prepared according to the protocol of Example 1.
- the performance of greases D to L outside the invention, measured according to the methods defined above, are summarized in Table 5 below:
- the performances of the greases A and B according to the invention are more particularly to be compared with those of the greases D and E outside the invention and the performances of the grease C according to the invention are more particularly to be compared with those of the grease F outside the invention.
- Fats A, B and C according to the invention have a lower water content lost in contact with water, and therefore greatly improved adhesiveness, compared to greases D to F outside the invention.
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1761890A FR3074809B1 (fr) | 2017-12-11 | 2017-12-11 | Composition de graisse presentant une adhesivite amelioree |
| PCT/EP2018/084012 WO2019115398A1 (fr) | 2017-12-11 | 2018-12-07 | Composition de graisse présentant une adhésivité améliorée |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3724303A1 true EP3724303A1 (fr) | 2020-10-21 |
| EP3724303B1 EP3724303B1 (fr) | 2024-07-24 |
Family
ID=61802082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18811320.3A Active EP3724303B1 (fr) | 2017-12-11 | 2018-12-07 | Composition de graisse présentant une adhésivité améliorée |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20210171855A1 (fr) |
| EP (1) | EP3724303B1 (fr) |
| JP (1) | JP7282097B2 (fr) |
| CN (1) | CN111566193A (fr) |
| AU (1) | AU2018382415B2 (fr) |
| CA (1) | CA3084585A1 (fr) |
| FR (1) | FR3074809B1 (fr) |
| WO (1) | WO2019115398A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118742628A (zh) | 2022-02-10 | 2024-10-01 | 雪佛龙美国公司 | 高性能润滑脂组合物 |
| EP4508171A4 (fr) * | 2022-04-15 | 2026-02-11 | Vgp Ipco Llc | Graisse pour véhicule électrique |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3223694A1 (de) | 1981-09-17 | 1983-03-24 | Akzo Gmbh, 5600 Wuppertal | Copolymere aus (alpha)-(beta)-ungesaettigten dicarbonsaeureestern verfahren zu deren herstellung sowie deren verwendung |
| US5435928A (en) * | 1981-09-17 | 1995-07-25 | Akzo Nobel N.V. | Copolymers from α-β-unsaturated dicarboxylic acid esters, and their use |
| DE3136931A1 (de) * | 1981-09-17 | 1983-04-07 | Akzo Gmbh, 5600 Wuppertal | Copolymere aus (alpha)-(beta)-ungesaettigten dicarbonsaeureestern, verfahren zu deren herstellung sowie deren verwendung als gleitmittel fuer die kunststoffverarbeitung |
| US4824584A (en) | 1987-10-15 | 1989-04-25 | Witco Corporation | One-step process for preparation of thixotropic overbased calcium sulfonate complex thickened compositions |
| JPH0816230B2 (ja) * | 1988-10-20 | 1996-02-21 | 日本石油株式会社 | 2サイクルエンジン油組成物 |
| US5126062A (en) | 1991-01-15 | 1992-06-30 | Nch Corporation | Calcium sulfonate grease and method of manufacture |
| US5274102A (en) | 1993-02-19 | 1993-12-28 | Akzo Nv | Epoxy functional copolymer of higher α-olefin and unsaturated dicarboxylic acid ester and derivatives thereof |
| US6525004B1 (en) * | 2001-05-01 | 2003-02-25 | Infineum International Inc. | Combustion improving additive for small engine lubricating oils |
| US6919301B2 (en) * | 2001-10-16 | 2005-07-19 | Nsk Ltd. | Grease composition and rolling apparatus |
| US20050209114A1 (en) * | 2004-03-19 | 2005-09-22 | The Lubrizol Corporation, A Corporation Of The State Of Ohio | Functionalized polymer composition for grease |
| US8563488B2 (en) * | 2004-03-23 | 2013-10-22 | The Lubrizol Corporation | Functionalized polymer composition for grease |
| JP4713161B2 (ja) * | 2005-01-07 | 2011-06-29 | ポリマテック株式会社 | 熱伝導性グリス |
| JP4939042B2 (ja) * | 2005-11-25 | 2012-05-23 | 株式会社ジェイテクト | 潤滑剤組成物とそれを用いた減速機ならびにそれを用いた電動パワーステアリング装置 |
| US20080004191A1 (en) * | 2006-06-29 | 2008-01-03 | Polymatech Co., Ltd. | Thermal conductive grease |
| US20110111995A1 (en) * | 2007-11-05 | 2011-05-12 | Hitachi Construction Machinery Co., Ltd. | Grease composition and process for production thereof |
| KR101659099B1 (ko) * | 2008-07-31 | 2016-09-22 | 더루우브리졸코오포레이션 | 신규 공중합체 및 이의 윤활 조성물 |
| KR101821831B1 (ko) * | 2009-11-24 | 2018-01-24 | 더루우브리졸코오포레이션 | 마찰 조정제 배합물을 함유하는 윤활 조성물 |
| EP2571967B1 (fr) * | 2010-05-20 | 2017-07-12 | The Lubrizol Corporation | Composition lubrifiante |
| FR2968670B1 (fr) | 2010-12-13 | 2013-01-04 | Total Raffinage Marketing | Composition de graisse |
| CN104245906A (zh) * | 2012-02-17 | 2014-12-24 | 卢布里佐尔公司 | 烯烃-酯共聚物与聚烯烃的混合物作为粘度改进剂 |
| WO2014031402A1 (fr) * | 2012-08-20 | 2014-02-27 | The Lubrizol Corporation | Composition lubrifiante contenant un copolymère estérifié et procédé afférent |
| WO2014047017A1 (fr) * | 2012-09-24 | 2014-03-27 | The Lubrizol Corporation | Lubrifiant contenant un mélange d'un copolymère d'oléfine-ester avec un copolymère d'éthylène alpha-oléfine |
| US10266787B2 (en) * | 2012-11-16 | 2019-04-23 | Idemitsu Kosan Co., Ltd. | Grease composition |
| JP2014185289A (ja) * | 2013-03-25 | 2014-10-02 | Jx Nippon Oil & Energy Corp | 油圧作動油組成物 |
| FR3013056B1 (fr) | 2013-11-13 | 2018-01-19 | Total Marketing Services | Procede de preparation d'une graisse sulfonate de calcium complexe |
| CN106661484B (zh) * | 2014-05-06 | 2020-01-03 | 路博润公司 | 包含抗磨剂的润滑剂组合物 |
| CN106753700B (zh) * | 2015-11-23 | 2019-07-23 | 中国石油化工股份有限公司 | 汽油发动机润滑油组合物及其制备方法、用途 |
-
2017
- 2017-12-11 FR FR1761890A patent/FR3074809B1/fr active Active
-
2018
- 2018-12-07 EP EP18811320.3A patent/EP3724303B1/fr active Active
- 2018-12-07 US US16/771,366 patent/US20210171855A1/en active Pending
- 2018-12-07 CN CN201880085698.8A patent/CN111566193A/zh active Pending
- 2018-12-07 CA CA3084585A patent/CA3084585A1/fr active Pending
- 2018-12-07 JP JP2020550903A patent/JP7282097B2/ja active Active
- 2018-12-07 WO PCT/EP2018/084012 patent/WO2019115398A1/fr not_active Ceased
- 2018-12-07 AU AU2018382415A patent/AU2018382415B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| AU2018382415B2 (en) | 2024-04-04 |
| AU2018382415A1 (en) | 2020-07-09 |
| FR3074809B1 (fr) | 2019-12-13 |
| JP7282097B2 (ja) | 2023-05-26 |
| JP2021505754A (ja) | 2021-02-18 |
| RU2020119291A3 (fr) | 2022-01-17 |
| RU2020119291A (ru) | 2022-01-13 |
| CN111566193A (zh) | 2020-08-21 |
| FR3074809A1 (fr) | 2019-06-14 |
| US20210171855A1 (en) | 2021-06-10 |
| EP3724303B1 (fr) | 2024-07-24 |
| CA3084585A1 (fr) | 2019-06-20 |
| WO2019115398A1 (fr) | 2019-06-20 |
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