EP2350241A1 - Utilisation d'un additif a base d'oligomeres pour stabiliser une composition lubrifiante pour chaîne de convoyage - Google Patents
Utilisation d'un additif a base d'oligomeres pour stabiliser une composition lubrifiante pour chaîne de convoyageInfo
- Publication number
- EP2350241A1 EP2350241A1 EP09755990A EP09755990A EP2350241A1 EP 2350241 A1 EP2350241 A1 EP 2350241A1 EP 09755990 A EP09755990 A EP 09755990A EP 09755990 A EP09755990 A EP 09755990A EP 2350241 A1 EP2350241 A1 EP 2350241A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- oligomers
- formula
- additive
- pan
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
-
- 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
- C10N2030/04—Detergent property or dispersant property
-
- 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
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- 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
- C10N2030/74—Noack Volatility
-
- 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
- C10N2040/38—Conveyors or chain belts
Definitions
- the present invention relates to the field of lubricants for conveyor chains, in particular for conveying chains subjected to a high temperature.
- Conveyor belt systems are widely used in industrial production lines, in order to transport parts or objects being manufactured from a departure location to an arrival location, generally from a first processing station to a production location. second treatment station.
- the conveyor belts are generally moved by means of belts or conveyor chains which are themselves driven by passage over rotating pulleys.
- the conveyor chains are continuously lubricated, as described, for example, in US Pat. No. 6,548,455 and US Pat. US 6,372,698.
- a good conveyor chain lubricant has good adhesion to metals, ability to lubricate permanent friction elements and good resistance to thickening.
- parts or objects being manufactured are subjected to one or more stages of heat treatment, by conveying through an oven.
- the conveyor chains In these fields of industry, in which the conveying systems are exposed to a high temperature, the conveyor chains must be lubricated with oils which retain their properties when subjected to high temperatures, often above 150 ° vs.
- lubricant compositions resistant to high temperature for a conveyor chain must be characterized both by: - a reduced loss of mass over a long period of time,
- the lubricants for conveyor chains are initially applied over the entire length of the chain by means of suitable dispensing systems. Then, the lubricated chain is put into continuous operation and is subject to a new lubrication cycle when the lubricant initially applied has lost its lubricating properties. It is understood that continuous commissioning of the conveyor belts requires that the used lubricant leave a minimum amount of residual degradation compounds as possible, in order to prevent each new lubrication cycle being preceded by a cycle of degradation. cleaning the conveyor chain.
- thermostable oils for conveyor chains consist of mixtures of mineral oil and oils based on polyol esters. The thermostability of these lubricant mixtures is greater than the thermostability of each of the mineral or synthetic oils taken alone.
- Such lubricating compositions may also include various additives, such as antioxidants, detergents, dispersants, antiwear agents, viscosity modifiers, antifoams, corrosion inhibitors, and the like.
- thermostable oils may contain antioxidants chosen from compositions containing sulfur, aromatic amines, phenols, or liposoluble compounds containing transition metals, as described, for example, in the French patent. US No. 7,053,026 (The Lubrizol Corporation).
- the present invention relates to the use of an additive comprising a mixture of oligomers produced by the reaction of aromatic amines chosen from:
- DPA diphenylamine compounds
- group R 3 is hydrogen or a linear or branched alkyl group having 1 to 30 carbon atoms, preferably 4 to 12 carbon atoms, and
- the lubricating composition is preferably chosen from oils based on synthetic esters.
- the lubricating composition is adapted to lubricate a conveyor chain subjected to a temperature of at least 150 ° C., better still at least 180 ° C. and more preferably at least 200 ° C.
- Figure 1 illustrates the comparison of the evaporation curves of four lubricating compositions of the invention based on polyol esters, with a comparative lubricating composition (not comprising a mixture of oligomers) based on the same polyol esters.
- abscissa the duration of the exposure to high temperature (200 ° C.), expressed in hours.
- degree of evaporation expressed as a percentage of the residual mass of the composition in relation to the mass at time 0 of the same composition.
- FIG. 2 illustrates the comparison of the evaporation curves of two lubricating compositions of the invention, based on polyol esters, with a comparative lubricating composition based on the same polyol esters.
- FIG. 3 illustrates the comparison of the evaporation curves of a lubricant composition of the invention, based on an alcohol trimellitate, with a comparative lubricating composition based on the same alcohol trimellitate.
- Figure 4 illustrates the comparison of the evaporation curves of a lubricant composition of the invention based on polyester with a comparative lubricant composition based on the same polyester.
- abscissa the duration of the exposure at high temperature (200 ° C.), expressed in hours.
- degree of evaporation expressed as a percentage of residual mass, with respect to the mass at time 0 of the composition.
- Figure 5 illustrates the comparison of the evaporation curves of a lubricant composition of the invention based on polyester with a comparative lubricant composition based on the same polyester.
- abscissa the duration of the exposure at high temperature (200 ° C.), expressed in hours.
- degree of evaporation expressed as a percentage of residual mass, with respect to the mass at time 0 of the composition.
- thermostability properties of a lubricating composition for a conveyor chain could be improved by incorporating in the oil an additive comprising oligomers consisting of (i) diphenylamine units or diphenylamine derivatives, (ii) phenyl- ⁇ -naphthylamine units or phenyl- ⁇ -naphthylamine derivatives, or (iii) a combination of units (i) and (ii);
- an additive comprising a mixture of oligomers produced by the reaction of aromatic amines chosen from:
- DPA diphenylamine compounds
- R 1 and R 2 independently of one another, are hydrogen or a linear or branched alkyl group having 1 to 30 carbon atoms, preferably 4 to 12 carbon atoms
- PAN phenyl- ⁇ -naphthylamine compounds
- group R 3 is hydrogen or a linear or branched alkyl group having 1 to 30 carbon atoms, preferably 4 to 12 carbon atoms, and
- a first characteristic which is generally sought for a lubricant for a high temperature conveying chain, namely an evaporation which is significantly delayed in time, is improved by the addition of the additive. above, relative to the evaporation found for a comparative lubricant not comprising said additive.
- the addition of the above additive to a lubricating composition in some cases allows the duration of use of the high temperature lubricating composition to be doubled, compared to a comparative lubricant not comprising said additive.
- the duration of use at high temperature is considerably increased because the time at which a marked increase in the viscosity due to the polymerization is retarded. of compounds contained in the oil, which is materialized by a gelation of the lubricating composition which results in an almost total loss of its lubricating capacity.
- oligomers known to induce an increase in viscosity in aviation turbine lubricants does not induce a significant change in the duration of use at high temperature before gelation, relative to lubricating compositions not comprising these oligomers, and especially with respect to comparative lubricating compositions comprising alkylated aromatic amine monomers. It is even more surprising that the use of an additive composition comprising oligomers (i) of DPA, (ii) of PAN or (iii) of DPA and PAN, does not lead to an increase in the amount of residues.
- an additive agent comprising oligomers (i) of DPA, (ii) of PAN or (iii) of DPA and PAN to a lubricating composition for conveying chain confers said lubricating composition:
- alkyl especially for the compounds of formula (I) and (II) defined above, is meant a linear or branched chain of a saturated hydrocarbon radical monovalent and having the specified number of carbon atoms. In a branched alkyl group, the linear hydrocarbon chain is substituted with one or more alkyl groups. Alkyl groups include butyl, pentyl, hexyl and octyl groups.
- the R 1 and R 2 groups of the diphenylamine compound (DPA) are identical.
- Diphenylamine compounds (DPA) include diphenylamine, dioctylphenylamine, didecylphenylamine, didodecylphenylamine or dihexylphenylamine.
- the R 1 and R 2 groups of the diphenylamine compound (DPA) are each octyl and the DPA is di-octyl diphenylamine or DODPA. well known by those skilled in the art.
- the phenyl- ⁇ -naphthylamine compounds include, in particular, phenyl- ⁇ -naphthylamine, para-tert-octylphenyl- ⁇ -naphthylamine, para-tert-dodecylphenyl- ⁇ -naphthylamine and para-tert-butyl- ⁇ -naphthylamine.
- the R 3 group of the phenyl- ⁇ -naphthylamine compound (PAN) is an octyl group and the PAN is octyl-phenyl- ⁇ -naphthylamine or N- (para-tertio).
- octylphenyl) - ⁇ -naphthylamine also known as OPAN, well known to those skilled in the art.
- DPA compounds of formula (I) and the PAN compounds of formula (II) are products commonly found on the market.
- PAN compound of formula (II) in which the R 3 group consists of an octyl group and the PAN consists of octyl-phenyl- ⁇ -naphthylamine or N- (para-tert-octylphenyl) - ⁇ -naphthylamine also known as OPAN, well known to those skilled in the art.
- PAN compound of formula (II) wherein R 3 is a hydrogen atom it is possible to use a PAN compound of formula (II) wherein R 3 is a hydrogen atom.
- the PAN then corresponds to phenyl- ⁇ -naphthylamine
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows: (a) from 0% to 30% by weight of diphenylamine of formula (I), (b) from 0% to 25% by weight of phenyl- ⁇ -naphthylamine of formula (II),
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows:
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows:
- the stabilizing additives consisting of a DPA reaction product
- up to three different DPA compounds of formula (I) can be reacted with each other, and advantageously two distinct DPA compounds of formula (I).
- said stabilizing additives are the products of the reaction between them of molecules of a single compound DPA of formula (I).
- An illustration of the preparation of a stabilizing additive according to the invention by reaction between them of DPA compounds of formula (I) is described in Example 2.
- said additive consists of a reaction product of a compound (PAN) of formula (II)
- said additive agent comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows :
- the stabilizing additives consisting of a PAN reaction product
- up to three distinct PAN compounds of formula (II) can be reacted with each other, and advantageously two distinct PAN compounds of formula (II).
- said stabilizing additives are the products of the reaction between they are molecules of a single PAN compound of formula (II).
- An illustration of the preparation of a stabilizing additive according to the invention by reaction between them of PAN compounds of formula (II) is described in Example 4.
- the oligomer mixture according to the invention can be obtained by oligomerization reaction of DODPA with a PAN compound of formula (II) chosen from OPAN and phenyl- ⁇ -naphthylamine.
- the qualitative and quantitative composition of a stabilizing agent of the invention can be easily determined by those skilled in the art, by any known technique.
- a person skilled in the art may use a high performance liquid chromatography (HPLC) technique or a vapor phase chromatography technique.
- HPLC high performance liquid chromatography
- vapor phase chromatography a technique that chromatography
- Those skilled in the art can also use the analysis technique in supercritical fluid chromatography (or SSC for "Supercritical Fluid Chromatography").
- said agent is substantially free, or alternatively completely free, of a detectable amount of an organic peroxide, including an alkyl peroxide, and specifically of di-tert-butyl peroxide, as well as products of its decomposition, such as, for example, tert-butanol.
- said agent may contain detectable traces of potassium permanganate or its reduction products.
- the content can be measured by flame ionization spectrometry (ICP)
- the additive or stabilizer of the invention comprises, in addition to oligomers (i) of DPA, (ii) PAN or (iii) DPA and PAN, a certain amount of monomer of DPA or PAN.
- oligomers (i) of DPA, (ii) PAN or (iii) DPA and PAN a certain amount of monomer of DPA or PAN.
- the presence of DPA or PAN monomers in combination with the oligomers (i) of DPA, (ii) of PAN or (iii) of DPA and PAN nevertheless makes it possible to obtain a additive having the desired stabilizing properties for a high temperature lubricating composition for a conveyor chain.
- the stabilizing additive of the invention comprises at most 25% by weight of DPA or PAN, relative to the total weight of the constituents (a) to (h) defined above. In certain embodiments, the stabilizing additive comprises less than 1% by weight of DPA or PAN, relative to the total weight of the constituents (a) to (h) defined above. In certain embodiments, said stabilizing additive comprises 0% by weight of DPA or PAN, relative to the total weight of the constituents (a) to (h) defined above. In these latter embodiments, said additive does not contain an amount of DPA that is measurable with the chromatography methods cited above.
- the additive or stabilizer of the invention comprises, in addition to oligomers (i) of DPA, (ii) PAN or (iii) DPA and PAN, a certain amount of PAN monomer.
- the Applicant believes that the presence of a limited amount of PAN monomer, at most 25% by weight, in combination with the oligomers (i) of DPA, (ii) PAN or (iii) DPA and PAN, is not likely to alter the essential properties of a high temperature lubricating composition for conveyor chain.
- the stabilizing agent according to the invention comprises less than 1% by weight of PAN, relative to the total weight of the constituents (a) to (h) defined above.
- said stabilizing additive comprises 0% by weight of PAN, relative to the total weight of the constituents (a) to (h) defined above. In these latter embodiments, said additive does not contain an amount of PAN that is measurable with the chromatography methods mentioned above.
- the additive comprises at least 2% by weight of oligomers in the form of dimers. In certain embodiments, the additive comprises at most 30% by weight of oligomers in the form of dimers.
- the additive comprises at least 30% by weight of oligomers in the form of trimers. In certain embodiments, the additive comprises at most 40% by weight of oligomers in the form of trimers.
- the additive comprises at least 10% by weight of oligomers in the form of tetramers. In certain embodiments, the additive comprises at most 40% by weight of oligomers in the form of tetramers.
- the additive comprises at least 1% by weight oligomers as pentamers. In certain embodiments, the additive comprises at most 20% by weight of oligomers in the form of pentamers. In certain embodiments, the additive comprises at least at least 1% by weight of oligomers in the form of hexamers. In certain embodiments, the additive comprises at most 12% by weight of oligomers in the form of hexamers.
- the additive comprises less than 6% by weight of PAN (II) and DPA (I) type monomers and comprises a cumulative percentage of trimer and tetramer compounds of at least 45%. This type of embodiment is illustrated by Examples 1 and 4 of the present application.
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows:
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows:
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows: (a) from 0% to 5% by weight of diphenylamine of formula (I) )
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows:
- the additive agent used according to the invention comprises a mixture of oligomers whose qualitative and quantitative constitution is as follows:
- the advantageous properties of a stabilizing agent according to the invention are increased with the embodiments of this additive in which the proportion of oligomers with respect to the monomer (s) is the highest. big. Moreover, as also illustrated in the examples, the advantageous properties of a stabilizing agent according to the invention are increased with the embodiments in which the largest proportion of large oligomers is found.
- an additive according to the invention are those for which the ratio of weight percent oligomer (s) / monomer (s) is at least 80, which includes additives for which the ratio percent by weight oligomer (s) / monomer (s) is at least 85, 90, 91, 92, 93, 94, 95, 96, 97, 98 and
- an additive according to the invention are those for which all the oligomers of trimer form or of a higher degree of polymerization represent at least 70% by weight, relative to the total weight of the constituents ( a) to (h) of said additive.
- These latter preferred embodiments include additives for which all oligomers of trimer form or higher degree of polymerization represent at least 75%, 80%, 85%, 90%, 91%, 92, 93%, 94% or 95% by weight, relative to the total weight of the constituents (a) to (h) of said additive.
- a large proportion of large oligomers can be illustrated using the average degree of polymerization of the stabilizing additive.
- the average degree of polymerization corresponds to the average number of monomer units included in the constituent compounds of the additive. This average degree of polymerization is calculated from the sum of the molar percentages of the constituents of the additive (i.e., oligomers and monomers contained in the additive), each molar percentage being multiplied by the average number monomer unit included in the constituent. The degree of polymerization is obtained by dividing the sum obtained by 100.
- the average degree of polymerization will be: (10 * 1 + 60 * 2 + 30 * 3) / 100 is 2.2.
- an estimate of the average degree of polymerization can be obtained by replacing the molar percentages by the percentages corresponding weight.
- Particularly preferred stabilizing agents according to the invention comprise a mixture of oligomers having an average degree of polymerization of at least greater than about 2.
- At least greater than about 2 includes 2, 3, 3.5, 4, 4.5, 5, 6, 7, 8, 9.
- the average degree of polymerization of a stabilizing agent according to the invention is within a range of ranging from about 2 to about 6, preferably from about 2.5 to about 5.
- the preferred additives of the invention which have a high proportion of oligomers of DPA and large PAN, induce a lubricant decomposition rate to which they are added similar to the rate of decomposition of the additives comprising a smaller proportion of large oligomers. It can also be emphasized that, surprisingly, the preferred additives of the invention, which have a high proportion of oligomers of large DPA and PAN, induce a rate of decomposition of the lubricants to which they are added similar to the speed. of decomposition of comparative lubricants not including these additives, including lubricants comprising exclusively aromatic amine monomers.
- a process comprising the following steps: a) reacting aromatic amines selected from:
- DPA diphenylamine compounds
- R 1 and R 2 groups independently of each other, are hydrogen or a linear or branched alkyl group having from 1 to
- group R 3 denotes a hydrogen or a linear or branched alkyl group having from 1 to 30 carbon atoms, advantageously from 4 to 12 carbon atoms, and (iii) compounds (DPA) of formula (I) top with compounds
- a stabilizing additive of the invention is produced by reaction of DPA compounds, up to three different DPA compounds of formula ( I), and advantageously two separate DPA compounds of formula (I).
- said stabilizing additives are the products of the reaction between them of molecules of a single compound DPA of formula (I).
- a stabilizing additive of the invention when a stabilizing additive of the invention is produced by reaction of PAN compounds, up to three distinct PAN compounds of formula (II) can be reacted with each other, and advantageously two distinct PAN compounds of formula (II) .
- said stabilizing additives are the products of the reaction between them of molecules of a single PAN compound of formula (II).
- a stabilizing additive of the invention when a stabilizing additive of the invention is produced by reaction between them of a compound (DPA) of formula (I) and a compound (PAN) of formula (II), the compounds (DPA) are reacted.
- the presence of DPA or PAN monomer in the final oligomer composition is particularly controlled, as is well known to those skilled in the art.
- the absence or presence of the desired amount of DPA or PAN monomer is controlled by varying the duration of step a).
- a catalyst is used alkyl peroxide or potassium permanganate.
- alkyl peroxide catalyst a tertiary butyl peroxide or a di-tert-butyl peroxide is preferably used.
- a potassium permanganate catalyst is preferably used.
- Preferred embodiments of the preparation of the stabilizing additives of the invention are described hereinafter with reference to examples of the preparation of a stabilizing additive consisting of a reaction product of a compound (DPA) of formula (I) with a compound (PAN) of formula (II).
- DPA compound of formula (I)
- PAN compound of formula (II)
- the reaction mixture comprises the compound DPA, the compound PAN and potassium permanganate dissolved in an organic solvent adapted to the reaction temperature.
- Suitable solvents include solvents of aliphatic hydrocarbon compounds, including alkanes having from 6 to 16 carbon atoms in a linear, branched or cyclic structure.
- the weight ratio [PAN + DPA + catalyst reagent] / [solvent,] is advantageously about 1.
- step a) of the process is carried out in an inert gas atmosphere which is very depleted of oxygen in order to avoid undesirable oxidation reactions.
- step a) is carried out in a reactor under a nitrogen or argon atmosphere.
- the temperature of the reaction is advantageously at most 100 ° C. In addition, the temperature of the reaction is advantageously at least 30 ° C.
- step a) is a step performed under reflux conditions.
- the compounds of formula (I) and the compounds of formula (II) are first added to the solvent and then, after a period of preheating, the catalyst, for example potassium permanganate to initiate the actual condensation reaction.
- Said preheating period is carried out for the time necessary to bring the catalyst-free starting reaction mixture to the desired reaction temperature.
- the duration of the preheating period can range from 1 minute to 1 hour, depending on the reaction conditions chosen, in particular in particular according to the installation and the volume of starting reaction mixture.
- step a) may comprise the following substeps: a) providing a reactor containing an appropriate volume of the selected solvent; a2) adding the appropriate amounts of each of the DPA compounds of the formula
- steps a3) to a5) above, or alternatively steps a4) and a5) above, is irrelevant, even if the optimal reaction conditions are obtained when the initial order ai) to a7) is respected.
- the reaction medium is maintained in step a), and more particularly in step a7), at a temperature of between 125 ° C. and 150 ° C.
- step a7) the oxidation condensation reaction is initiated and it is important to tightly regulate the temperature value of the reaction medium because it is an exothermic reaction.
- the duration of step a) is advantageously at least 5 hours and is generally at least 10 hours.
- the duration of step a) is generally at most 30 hours, and is generally at most 20 hours, depending on the reaction conditions chosen, especially the selected temperature conditions.
- the duration of step a) is conditioned by the duration of step a7), which is the step during which the condensation reaction itself is carried out.
- step b) of the process the reaction mixture is cooled to a temperature of at most 80 ° C., for example by simply stopping the heating means.
- step c) the reaction mixture is filtered to remove any sediment that has been generated in the previous steps.
- a fine filtration is carried out so as to reduce the amount of sediment to a maximum content of 1 mg per liter of reaction mixture, for example in accordance with the standard FTM-S-791 -3010 - Federal Test Method defined by the Government American.
- step c) the actual filtration may be followed by washing the reaction medium with an aqueous solution, usually demineralized water, so as to remove any residual impurities from the solvent. Then the aqueous solution is removed, for example by simple withdrawal, before performing step d) of desolvation.
- an aqueous solution usually demineralized water
- the stabilizing agent according to the invention may be in the form of a powder.
- the above process comprises the following additional step: d) removing the residual solvent, in order to obtain the antioxidant and / or or anticorrosion in the form of a powder.
- the residual solvent can be removed according to any known technique of desolvation, including by desolvation by heating under vacuum, the operating conditions being adapted according to the type of solvent used.
- the vacuum desolvation may be carried out at a temperature ranging from 140 ° C. to 300 ° C., advantageously from 150 ° C. to 270 ° C.
- the removal of the solvent may be completed by sweeping the product of reaction with a neutral gas, for example nitrogen or argon.
- the solvent content of the reaction product obtained at the end of step d) is adjusted to a value of less than 50 mg of solvent per kg of final reaction product.
- the use of a compound (1) / compound (II) molar ratio ranging from V ⁇ to 10/1 makes it possible in particular to adjust the amount of unreacted monomeric DPA which is found in the end product of the process, i.e. the stabilizer of the invention.
- the molar ratio potassium permanganate / compound (I) + compound (H)] is preferably at least 0.30 / 1.
- the molar ratio potassium permanganate / [compound (I) + compound (H)] is preferably at most 0.70 / 1.
- the choice of an optimum molar ratio between the permanganate and the starting DPA and PAN products is important for obtaining a final product having the desired qualitative and quantitative composition of monomer (s) and oligomers.
- a stabilizing agent according to the invention which is in the form of powder, is obtained.
- the stabilizing agent of the invention may be used for the preparation of a liquid form additive composition for addition to a lubricating composition to provide a lubricating composition for a high temperature resistant conveyor chain.
- a liquid stabilizing composition from a stabilizing agent according to the invention, an appropriate amount of the stabilizing agent in powder form, obtained at the end of step d) of the above process, at a suitable volume of a suitable oil, for example an oil based on synthetic esters.
- said stabilization composition is prepared according to a process comprising steps a) to c) of the described process above, said method also comprising the following additional steps: d) mixing between (i) the filtered reaction medium obtained at the end of step c) and (ii) an appropriate amount of a suitable oil, preferably an oil based on synthetic esters; e) removing the solvent to obtain a stabilizing composition in liquid form.
- a suitable oil preferably an oil based on synthetic esters
- the stabilizing agent is present in the oily liquid at a content ranging from 10% to 60% by weight of the stabilizing agent.
- the content of the stabilizing agent is between 25% and 35% by weight, based on the total weight of the liquid stabilizing composition.
- the stabilizing agent according to the invention is intended to be used as an additive for the manufacture of lubricating compositions for conveyor chains. , resistant to high temperature.
- the stabilizer according to the invention imparts enhanced stability properties to high temperature exposure to a wide variety of base lubricating compositions for conveyor chains.
- the stabilizing agent according to the invention is suitable for the stabilization of lubricating starting compositions as diverse as oils based on sodium esters. polyol based on alcohol trimellitate oils, polyesters oils and mineral oils.
- the lubricant composition is selected from a mineral oil and an oil based on synthetic esters.
- the stabilizing agent according to the invention is suitable for the stabilization of a variety of oils based on polyol esters, in particular oils comprising esters having a length of very varied chain and which consequently have distinct starting viscosity characteristics.
- a stabilized and thermally resistant lubricating composition is obtained, for lubricating a conveying chain subjected to a temperature of at least 120 ° C.
- a lubricating composition comprising a suitable amount of a stabilizing additive according to the invention is capable of maintaining its lubricity capacity until after more than one thousand hours of continuous exposure at a temperature of 200 ° C. vs.
- a similar lubricating composition not containing the stabilizing additive of the invention for example a similar lubricating composition comprising aromatic amine monomers, decomposes and loses its lubricating properties after less than 600 hours of continuous exposure. at a temperature of 200 ° C.
- a thermally stabilized conveyor chain lubricant composition comprising 2.5% by weight stabilizing agent can be obtained by (i) directly adding the appropriate amount of stabilizing agent to the lubricating composition (p 2.5 g of stabilizer added to 97.5 g of lubricating composition), or (ii) by adding the appropriate amount of stabilizing composition comprising said stabilizer in the lubricant composition (e.g. 25 g of a stabilizing composition containing 10% by weight of stabilizing agent added to 75 g of lubricating composition).
- a lubricating composition for a conveyor chain comprising a stabilizing additive as defined in the present description, or capable of being obtained according to the process described above, has a substantially increased thermal stability, by relative to the same lubricant composition free of said additive or with respect to the same lubricant composition free of said additive and comprising a mixture of aromatic amine monomers.
- a lubricating composition for a conveyor chain that is thermally stabilized by the addition of an additive according to the invention decomposes rapidly by generating only a small amount of residual compounds, generally a quantity of residual compounds of less than 50% by weight. weight, based on the total weight of the stabilized starting lubricant composition.
- a thermally stabilized lubricating composition for a conveyor chain comprises a quantity of stabilizing agent as defined above ranging from 0.1% to 10% by weight of the stabilizing agent in powder form, by relative to the total weight of said lubricating composition.
- the stabilizer content of the lubricating composition is calculated on the basis of the amount of powder. initial stabilizing agent.
- a thermally stabilized lubricating composition for a conveyor chain comprises a quantity of stabilizing agent ranging from 0.5% to 5% by weight, and is very preferably between 1% and 4% by weight. weight, based on the total weight of said lubricating composition.
- the stabilizing agent can be added in various types of industrial oils, preferably oils adapted for chains of conveyor systems.
- the stabilizing agent is added to lubricating oils based on synthetic esters well known to those skilled in the art.
- ester-based lubricating oils produced from monohydroxyl alcohols and mono-carboxylic acids or from monohydroxylated alcohols and dicarboxylic acids can be used.
- esters are well known to those skilled in the art. They are described, for example, in US Pat. No. 3,432,433.
- the alcohols and acids used to prepare the esters may contain from one to six functional groups, which allows the production of mono-, di-, tri- and tetra-, penta- and hexa-esters.
- esters of alcohols, diols, triols and pentaerythritols said alcohols or polyols having 2 to 20 carbon atoms, and mono- and dicarboxylic acids having 2 to 20 carbon atoms, preferably 4 to 12 atoms of carbon.
- the polyols include trimethylolpropane, pentaerythritol, dipentaerythritol, neopentyl glycol, tripentaerythritol, di-TMP and mixtures thereof.
- Esters that may be contained in a lubricant composition according to the invention include monoesters derived from the reaction of monoacids carboxylic acids of chain length from 2 to 24 carbons, linear or branched, such as, for example, octyl acetate, decyl acetate, octadecyl acetate, ethyl caprylate / caproate 2 hexyl monoesters, of methyl myristate, butyl stearate, methyl oleate, as well as polyesters of dibutyl phthalate, di-octyl adipate, di-2-ethylhexyl azelate and ethylhexyl sebacate, polyesters, reaction of polyols with linear and / or branched carboxylic monoacids of 2 to 24 carbons and polycarboxylic acids of 2 to 40 carbons or polyesters, reaction of polycarboxylic acids of 2 to 40 carbons with mono
- the polyol ester base oil may be an oil prepared from dipentaerythritol or technical pentaerythritol or trimethylol propane and a mixture of linear and / or branched carboxylic acids having from 4 to 24 carbon atoms.
- Technical pentaerythritol is a mixture which comprises from about 85% to 92% by weight of monopentaerythritol and from 8% to 15% by weight of dipentaerythritol.
- a typical commercial technical pentaerythritol contains about 88% by weight of monopentaerythritol and about 12% by weight of dipentaerythritol, based on the total weight of said ester base oil.
- Technical pentaerythritol may also contain a certain amount of tri- and tetra-pentaerythritol which are usually formed as by-products during the production of technical pentaerythritol.
- the stabilizing agent of the invention may also be added to thermally stabilize alcohol trimellitate oils.
- the stabilizing agent can be used in combination with other additives, such as detergents, antifoaming agents, anticorrosive agents, antirust agents, antiwear agents, additives suitable for extreme pressure, hydrolysis stabilizers, fillers or viscosity modifiers, such additives being well known to those skilled in the art and commonly available commercially.
- additives such as detergents, antifoaming agents, anticorrosive agents, antirust agents, antiwear agents, additives suitable for extreme pressure, hydrolysis stabilizers, fillers or viscosity modifiers, such additives being well known to those skilled in the art and commonly available commercially.
- the invention also relates to a method for lubricating a conveyor chain comprising an application step on a conveyor chain of a high temperature lubricating composition as defined above.
- OPAN designates N- (para-tert-octylphenyl) - ⁇ -naphthylamine
- DODPA denotes di-octyl phenylamine
- PAN denotes phenyl- ⁇ -naphthylamine
- reaction is carried out under an inert atmosphere (nitrogen).
- reaction is carried out under an inert atmosphere (nitrogen).
- A.3 Heat and stir (the rise in temperature must be controlled).
- A.4) At a temperature of approximately 70 ° C., add 14.6 g. of KMnO 4 at once.
- A.6 Maintain these conditions until a residual DODPA content of about 20% is reached.
- A.7) At the end of the reaction, pass the reaction mixture through a pleated filter and then onto a 1.2 ⁇ m membrane filter until a sediment content of less than 2 mg / l is reached. The content of K and Mn is then zero.
- A.2) The reaction is carried out under an inert atmosphere (nitrogen).
- A.3) Heat and stir (the rise in temperature must be controlled).
- A.6 Maintain these conditions until a residual monomer content of approximately 20% is reached.
- A.7) At the end of the reaction, pass the reaction mixture through a pleated filter and then onto a 1.2 ⁇ m membrane filter until a sediment content of less than 2 mg / l is reached. The content of K and Mn is then zero.
- the solvent is removed under vacuum and hot: depending on the form chosen final - solid or liquid (in dilution) and the material used, the final temperature of desolvation may vary (example: in dilution 150-160 0 C in final under 2 to 3 mmHg).
- the solvent is removed under vacuum and hot: depending on the form chosen final - solid or liquid (in dilution) and the material used, the final temperature of desolvation can vary (example: in dilution 250 0 C in final under 2 to 3 mmHg).
- Preparation of a 20% standard solution of DODPA 80% of copolymer are prepared without the DODPA monomer and 20% of DODPA which is diluted 100 times with heptane and 5 ⁇ l are injected in SFC.
- Preparation of a solution of the reaction mixture to be assayed a sample of the reaction medium during oxidation at ⁇ 50% is taken in EXXSOL DSP 100/140 and diluted 50 times with ethyl acetate and 5 ⁇ l are injected in SFC.
- Cup test and interpretation of the results
- the test used to study the performance of the formulations prepared is the "cup” test. This test is very widely used to compare and predict in the laboratory the performance of lubrication compositions for conveyor chains.
- a particularly important criterion is the time required to obtain a gel
- the curve obtained can, for certain lubricating formulations (such as those of the present example), have the following profile • a phase 1 during which the percentage of residual mass is close to 100% or decreases slowly: there is therefore a plateau
- phase 3 which corresponds to a final level
- Phase 2 generally corresponds to the gelling phenomenon.
- the lubricant formulations most suitable for conveyor chains are those generally having a high thermal resistance capacity.
- a high thermal resistance capacity is generally correlated with a long-lasting phase 1.
- FIG. 1 show that all the formulations of lubricating compositions comprising a stabilizing additive based on DPA and PAN oligomers
- Formulation No. 2 which has the lowest improvement, has a capacity to maintain temperature-time resistance properties by about 20% greater than the comparative formulation that does not include the additive. based on oligomers of DPA and PAN (720 hours against 600 hours for the comparative formulation No. 5)
- the formulations No. 1 & 4 have a capacity for maintaining the temperature-resistant properties for a period of time three times greater than that of the comparative formulation No. 5 (1850 hours against 600 for the formulation no. 5 comparative). It is specified that the comparative formulation No. 3 comprises 3% by weight of a mixture of alkylated aromatic amines, more specifically a mixture of monomers of OPAN and DODPA.
- the degradation rate of the formulations of the invention (formulations No. 1, 2, 3 and 4) is similar or even identical to the degradation rate of the comparative formulation No. 5. Also, the decomposition of the formulations of the invention (formulations No. 1,
- the formulation No. 7 which has the lowest improvement has a capacity to maintain the lubricating properties over time about 2.5 times greater than the comparative formulation that does not include the additive based on DPA and PAN oligomers (400 hours versus 150 hours for comparative formulation No. 8)
- the formulation No. 6 has a capacity for maintaining the lubricating properties for a period of time about fifteen times greater than that of the comparative formulation No. 8 (2350 hours against 150 for the formulation No. 8 comparative). It is specified that the comparative formulation No. 8 comprises 3% by weight of a mixture of alkylated aromatic amines.
- Branched alcohol trimellitate with 13 carbons with a viscosity at 40 ° C. 300 mm 2 / s, with 3% synthesis oligomer mass 3 and 2% mass of an antiwear additive 1.
- Branched alcohol trimellitate with 13 carbons of viscosity at 40 ° C. 300 mm 2 / s, with 3% of a mixture of reference alkylated aromatic amine, 1.5% of diphenyl diphenyl amide (Irganox LO1 Ciba Geigy) + 1.5% octyl phenyl alpha naphthylamine (Irganox LO6 from Ciba Geigy) and 2% mass of an antiwear additive 1.
- formulation No. 9 comprises 2% by weight of the additive based on DPA and PAN oligomers and the comparative formulation No. 3 comprises 3% by weight of a mixture of alkylated aromatic amines.
- the results of FIG. 3 show that the lubricating composition formulation comprising a stabilizer additive based on oligomers of DPA and PAN (formulation No. 9) has, at a lower concentration of additive, a significantly improved lubricating capacity, by compared to the comparative formulation which comprises an additive based on alkylated aromatic amine monomers.
- Polyester 1 neopolyol ester complexed with a diacid of viscosity at 40 ° C. of 320 mm 2 / s, with 2% of the mass of the oligomer of the synthesis 1 and 2% of the mass of an antiwear additive 1.
- Polyester 1 neopolyol ester complexed with a diacid of viscosity at 40 ° C. of 320 mm 2 / s, with 3% of a mixture of reference alkylated aromatic amine, 1.5% of diphenyl diphenyl amide (Irganox Ciba Geigy LO1) + 1.5% octyl phenyl alpha naphthylamine (Irganox LO6 from Ciba Geigy) and 2% mass of an antiwear additive 1.
- diphenyl diphenyl amide Irganox Ciba Geigy LO1
- Irganox LO6 octyl phenyl alpha naphthylamine
- the results of FIG. 4 show that the lubricating composition formulation comprising a stabilizer additive based on oligomers of DPA and PAN (formulation No. 11) has, at a lower concentration of additive, a resistance capacity to significantly improved temperature, compared to the comparative formulation which comprises an additive based on alkylated aromatic amine monomers.
- Formulation 13 170-10-F2 Polyester 2, diester complexed with a viscosity dialcohol at 100 ° C. of 320 mm 2 / s, with 2% of the mass of the synthesis oligomer 1 and 2% of the mass of an antiwear additive 1.
- Formulation 14 170-10-F1 Polyester 2, diester complexed with a dialcohol of viscosity at 100 ° C. of 320 mm 2 / s, with 3% of a mixture of reference alkylated aromatic amine, 1.5% of diphenyl amine diphenyl (Irganox LO1 from Ciba Geigy) + 1.5% octyl phenyl alpha naphthylamine (Irganox LO6 from Ciba Geigy) and 2% by weight of an antiwear additive 1
- formulation No. 13 comprises 2% by weight of the additive based on oligomers of DPA and PAN and that the comparative formulation No. 14 comprises 3% by weight of a mixture of alkylated aromatic amines.
- formulation No. 13 of the invention results in the formation of identical residue.
Landscapes
- 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 |
|---|---|---|---|
| FR0856872A FR2937047B1 (fr) | 2008-10-10 | 2008-10-10 | Utilisation d'un additif a base d'oligomeres pour stabiliser une composition lubrifiante pour chaine de convoyage |
| PCT/FR2009/051919 WO2010040960A1 (fr) | 2008-10-10 | 2009-10-07 | Utilisation d'un additif a base d'oligomeres pour stabiliser une composition lubrifiante pour chaîne de convoyage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2350241A1 true EP2350241A1 (fr) | 2011-08-03 |
| EP2350241B1 EP2350241B1 (fr) | 2014-04-30 |
Family
ID=40636656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09755990.0A Active EP2350241B1 (fr) | 2008-10-10 | 2009-10-07 | Utilisation d'un additif a base d'oligomeres pour stabiliser une composition lubrifiante pour chaîne de convoyage |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8492321B2 (fr) |
| EP (1) | EP2350241B1 (fr) |
| ES (1) | ES2483128T3 (fr) |
| FR (1) | FR2937047B1 (fr) |
| WO (1) | WO2010040960A1 (fr) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102112434A (zh) * | 2008-08-08 | 2011-06-29 | 雅宝公司 | 辛基化苯基-α-萘胺产物混合物及具有高辛基化苯基-α-萘胺含量的该等混合物的制备 |
| WO2017007670A1 (fr) | 2015-07-07 | 2017-01-12 | Exxonmobil Research And Engineering Company | Composition et procédé permettant de prévenir ou de réduire le cognement de moteur et le préallumage dans des moteurs à allumage par étincelle surcomprimés |
| US10808185B2 (en) | 2015-12-28 | 2020-10-20 | Exxonmobil Research And Engineering Company | Bright stock production from low severity resid deasphalting |
| US10590360B2 (en) | 2015-12-28 | 2020-03-17 | Exxonmobil Research And Engineering Company | Bright stock production from deasphalted oil |
| US10647925B2 (en) | 2015-12-28 | 2020-05-12 | Exxonmobil Research And Engineering Company | Fuel components from hydroprocessed deasphalted oils |
| US10494579B2 (en) | 2016-04-26 | 2019-12-03 | Exxonmobil Research And Engineering Company | Naphthene-containing distillate stream compositions and uses thereof |
| US10829708B2 (en) | 2016-12-19 | 2020-11-10 | Exxonmobil Research And Engineering Company | Composition and method for preventing or reducing engine knock and pre-ignition in high compression spark ignition engines |
| US20190062668A1 (en) | 2017-08-25 | 2019-02-28 | Exxonmobil Research And Engineering Company | Ashless engine lubricants for high temperature applications |
| WO2019040576A1 (fr) | 2017-08-25 | 2019-02-28 | Exxonmobil Research And Engineering Company | Lubrifiants sans cendres pour moteurs destinés à des applications haute température |
| US20190127526A1 (en) * | 2017-10-31 | 2019-05-02 | Basf Se | Antioxidant Polymeric Diphenylamine Compositions |
| WO2021154497A1 (fr) | 2020-01-30 | 2021-08-05 | Exxonmobil Research And Engineering Company | Compositions lubrifiantes exemptes de soufre, sans cendres et à faible teneur en phosphore présentant une stabilité à l'oxydation améliorée |
| US20230242831A1 (en) | 2020-09-30 | 2023-08-03 | ExxonMobil Technology and Engineering Company | Low friction and low traction lubricant compositions useful in dry clutch motorcycles |
| FR3138144B1 (fr) * | 2022-07-22 | 2025-06-27 | Psa Automobiles Sa | Additif de carburant pout réduire la pré-inflamation à bas régime dans les moteurs à essence à injection directe |
| US20240352375A1 (en) | 2023-04-21 | 2024-10-24 | ExxonMobil Technology and Engineering Company | Grease compositions |
| US12384980B2 (en) | 2023-05-02 | 2025-08-12 | ExxonMobil Technology and Engineering Company | Internal combustion engine lubricant |
| US12577493B2 (en) | 2023-06-09 | 2026-03-17 | ExxonMobil Technology and Engineering Company | Bio-based lubricant compositions |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509214A (en) * | 1966-03-28 | 1970-04-28 | Mobil Oil Corp | Oil soluble oxidized naphthylamine compositions |
| US5160647A (en) * | 1991-05-07 | 1992-11-03 | Ciba-Geigy Corporation | Substituted 1-aminonaphthalenes and stabilized compositions |
| AU662604B2 (en) * | 1992-03-02 | 1995-09-07 | Henkel Kommanditgesellschaft Auf Aktien | Lubricants for chain belt conveyors and their use |
| DE69405410T2 (de) * | 1993-12-15 | 1998-03-19 | Goodrich Co B F | Stabilisatormischung für synthetisches estergleitmittel |
| US5489711A (en) * | 1994-12-20 | 1996-02-06 | The B. F. Goodrich Company | Synthetic lubricant antioxidant from monosubstituted diphenylamines |
| DE19846991C2 (de) * | 1998-10-13 | 2003-04-24 | Bactria Industriehygiene Servi | Kettenschmiermittel für Förder- und Transportanlagen |
| EP1339815B1 (fr) * | 2000-10-25 | 2009-08-26 | The Lubrizol Corporation | Lubrifiants a base d'un melange de pib/poe/huile minerale pour applications a chaine a haute temperature |
-
2008
- 2008-10-10 FR FR0856872A patent/FR2937047B1/fr active Active
-
2009
- 2009-10-07 EP EP09755990.0A patent/EP2350241B1/fr active Active
- 2009-10-07 ES ES09755990.0T patent/ES2483128T3/es active Active
- 2009-10-07 US US13/123,068 patent/US8492321B2/en active Active
- 2009-10-07 WO PCT/FR2009/051919 patent/WO2010040960A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010040960A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8492321B2 (en) | 2013-07-23 |
| WO2010040960A1 (fr) | 2010-04-15 |
| FR2937047A1 (fr) | 2010-04-16 |
| US20110195886A1 (en) | 2011-08-11 |
| FR2937047B1 (fr) | 2012-07-27 |
| EP2350241B1 (fr) | 2014-04-30 |
| ES2483128T3 (es) | 2014-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2350241B1 (fr) | Utilisation d'un additif a base d'oligomeres pour stabiliser une composition lubrifiante pour chaîne de convoyage | |
| EP2217687A1 (fr) | Agent anti-oxydant et/ou anti-corrosion, composition lubrifiante contenant ledit agent et procede pour preparer celui-ci | |
| EP2844724B1 (fr) | Composition lubrifiante pour moteur | |
| EP2373768B1 (fr) | Huile lubrifiante a base d'esters de polyols | |
| FR2907782A1 (fr) | Composes antioxydants, procedes pour leur preparation et compositions les contenant. | |
| FR2532323A1 (fr) | Procede et composition d'huile lubrifiante a base d'ester synthetique donnant des huiles de moteurs resistant a l'hydrolyse | |
| AU2007206029A1 (en) | Lubricant oil and lubricating oil additive concentrate compositions | |
| EP3221435B1 (fr) | Utilisation pour améliorer la résistance à la cokéfaction d'une composition lubrifiante | |
| FR2910020A1 (fr) | Compositions d'additifs et de lubrifiants et procedes pour leur utilisation | |
| FR2832417A1 (fr) | Association synergique d'anti-oxydants du type arylamine dans des huiles pour turbines d'aviation | |
| FR2539426A1 (fr) | Lubrifiant pour emploi a haute temperature | |
| FR2909681A1 (fr) | Composition d'additifs et compositions de lubrifiants nouvelles | |
| EP4004168B1 (fr) | Composition lubrifiante pour turbines a gaz | |
| WO2020157433A1 (fr) | Huile de base lubrifiante synthetisee a partir d'esters de polyols et d'acides gras biosources | |
| FR2824331A1 (fr) | Graisse lubrifiante, sa preparation et son utilisation, notamment pour la lubrification des contacts faisant intervenir des elastomeres | |
| CA2278221C (fr) | Composition a base de maleates d'organoetain utilisable pour stabiliser et lubrifier des polymeres thermoplastiques. procede d'obtention de ladite composition | |
| EP4453151B1 (fr) | Utilisation d'une huile de base polyalcoxysiloxanes en tant qu'agent lubrifiant | |
| FR2919301A1 (fr) | Additifs et formulations de lubrifiants ameliorant la retention du phosphore | |
| WO2018138261A1 (fr) | Utilisation d'un ester d'acide lipoique comme additif anti-usure et/ou modificateur de friction | |
| WO2023285767A1 (fr) | Mono-ester de 2-octanol comme lubrifiant | |
| FR3060604A1 (fr) | Compositions de graisse et leur procede de fabrication | |
| WO2005121287A1 (fr) | Composition de graisse a base de silicone ayant une forte cohesion a froid | |
| CH716535B1 (fr) | Composition de graisse pour instrument de précision et pièce d'horlogerie l'utilisant. | |
| WO2016066961A1 (fr) | Compositions comportant un alternatif a l'adipate de di-isotridecyle | |
| FR3062387A1 (fr) | Dilipoate de dimere(s) diol et son utilisation comme additif |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20110408 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20130214 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20140121 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 665174 Country of ref document: AT Kind code of ref document: T Effective date: 20140515 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602009023695 Country of ref document: DE Effective date: 20140612 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: T3 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR Ref country code: ES Ref legal event code: FG2A Ref document number: 2483128 Country of ref document: ES Kind code of ref document: T3 Effective date: 20140805 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 665174 Country of ref document: AT Kind code of ref document: T Effective date: 20140430 |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140830 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140731 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140730 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140730 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140901 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602009023695 Country of ref document: DE |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20150202 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602009023695 Country of ref document: DE Effective date: 20150202 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20141007 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141031 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141031 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141007 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20091007 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20160802 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20161024 Year of fee payment: 8 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 9 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171008 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 10 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171007 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: PD Owner name: NYCO SAS; FR Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF LEGAL ENTITY; FORMER OWNER NAME: NYCO SA Effective date: 20230503 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: NYCO Effective date: 20230614 |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230516 |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: HC Owner name: NYCO; FR Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: NYCO SA Effective date: 20230504 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602009023695 Country of ref document: DE Owner name: NYCO, FR Free format text: FORMER OWNER: NYCO S.A., PARIS, FR Ref country code: DE Ref legal event code: R082 Ref document number: 602009023695 Country of ref document: DE Representative=s name: DOMPATENT VON KREISLER SELTING WERNER - PARTNE, DE Ref country code: DE Ref legal event code: R082 Ref document number: 602009023695 Country of ref document: DE Representative=s name: DOMPATENT - PARTNERSCHAFT VON PATENTANWAELTEN , DE |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20250929 Year of fee payment: 17 Ref country code: GB Payment date: 20250929 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20250929 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20251021 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20250930 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20251107 Year of fee payment: 17 |