EP1161513A1 - Motorenölzusammensetzung mit reduzierter neigung zur bildung von ablagerungen - Google Patents

Motorenölzusammensetzung mit reduzierter neigung zur bildung von ablagerungen

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Publication number
EP1161513A1
EP1161513A1 EP00916867A EP00916867A EP1161513A1 EP 1161513 A1 EP1161513 A1 EP 1161513A1 EP 00916867 A EP00916867 A EP 00916867A EP 00916867 A EP00916867 A EP 00916867A EP 1161513 A1 EP1161513 A1 EP 1161513A1
Authority
EP
European Patent Office
Prior art keywords
oil composition
formula
weight
carbon atoms
composition according
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.)
Ceased
Application number
EP00916867A
Other languages
German (de)
English (en)
French (fr)
Inventor
Alexander Dardin
Klaus Hedrich
Stephan Massoth
Boris Eisenberg
Stephan Fengler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Oil Additives GmbH
Original Assignee
RohMax Additives GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RohMax Additives GmbH filed Critical RohMax Additives GmbH
Publication of EP1161513A1 publication Critical patent/EP1161513A1/de
Ceased legal-status Critical Current

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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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/38—Polyoxyalkylenes esterified
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/28—Polyoxyalkylenes of alkylene oxides containing 2 carbon atoms only
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/30—Polyoxyalkylenes of alkylene oxides containing 3 carbon atoms only
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/32—Polyoxyalkylenes of alkylene oxides containing 4 or more carbon atoms
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/34—Polyoxyalkylenes of two or more specified different types
    • 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
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/36—Polyoxyalkylenes etherified
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C—CHEMISTRY; METALLURGY
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • 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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226—Morpholines
    • 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
    • C10M2215/30—Heterocyclic compounds
    • 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
    • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2221/043—Polyoxyalkylene ethers with a thioether group
    • C—CHEMISTRY; METALLURGY
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol-fuelled engines
    • C—CHEMISTRY; METALLURGY
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C—CHEMISTRY; METALLURGY
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C10N2040/253—Small diesel engines
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines
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    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • the present invention relates to
  • the crank mechanism, piston group, cylinder race and the valve control of an internal combustion engine are lubricated with an engine oil developed for this application.
  • the engine oil which collects in the oil pan of the engine, is conveyed to the individual lubrication points by means of a feed pump via an oil filter.
  • the motor oil has the following functions in this system:
  • the engine manufacturers stipulate a maximum service life of the engine oil (route or operating time until an oil change) and require proof of the performance of an engine oil in the form of test results from standardized test procedures and engine tests (e.g. API classification in the USA or ACEA test sequences in Europe) .
  • procedures defined by the manufacturer are used to assess the suitability of engine oil.
  • detergents and dispersants in fuels and lubricants is unavoidable to avoid deposits and to control components that are insoluble in motor oil.
  • Ionic, metal salt-containing (ash-giving) and non-ionic (non-ash-giving, 'ashless') compounds are usually used as detergents ('Chemistry & Technology of Lubricants', Mortier, RM, Orszulik, ST, Ed., VCH Publishers, Inc., New York).
  • Typical ionic classes of compounds are the alkyl sulfonates, phenates, salicylates and phosphonates with either calcium, magnesium or sodium as the counter ion. They are mainly used as lubricant detergents to prevent deposits and paint formation on e.g. Prevent or minimize pistons. They also often provide some protection against rust.
  • Non-ionic amphiphiles such as the poly (isobuylene) succinimide, poly (oxyalkylene) carbamates and polyamines and compounds derived therefrom have been used primarily as dispersants since 1950 to keep carbon black and other oil-insoluble oxidation products in solution. Their structure is similar to that of detergents, but here the polar part of the compound is formed by oxygen or nitrogen-containing hydrocarbon residues, such as poly (ethylene amines) or poly (ethylene oxides). The non-polar, oil-soluble part is usually of a polymeric nature, for example a poly (isobutylene) residue.
  • WO 84/04754 (US 4,438,022) describes a fuel and lubricant composition containing approximately 10000 ppm of a hydrocarbylmethylol polyoxyalkylene aminoethane, which is used both as a detergent and as a dispersant to keep the intake system in internal combustion engines clean.
  • WO 88/01290 discloses a polyalkylated succinimide, in which one or more nitrogen is substituted by a hydroxyhydrocarbyloxycarbonyl, as a detergent or dispersant in lubricating oils (engine, hydraulic, marine and two-stroke applications).
  • GB-A-2 206 600 describes an additive formulation which serves to improve the viscosity index.
  • the a surfactant which has alkoxy groups. A reduction in the formation of deposits is not mentioned.
  • US 5,204,012 describes a lubricating oil composition containing an esterification product from the reaction of an ethylene oxide-propylene oxide block copolymer with a long chain fatty acid. This additive is used to inhibit corrosion. An effect with regard to the formation of deposits is not indicated.
  • the invention is intended to eliminate the disadvantage of the aforementioned systems, namely a rather complicated and therefore expensive production.
  • the subject matter of claim 11 provides the solution to the problem on which the object is based.
  • the solution to the problem with regard to the use of alkyl alkoxylates is provided by the subject matter of claim 12.
  • the content of an alkyl alkoxylate of the formula (I) is 0.05-10% by weight, based on the total weight of the engine oil composition.
  • R 1 , R 2 and R 3 are independently hydrogen or a
  • R is hydrogen, a methyl or ethyl radical
  • L is a linking group
  • n is an integer in the range from 4 to 40
  • A is an alkoxy group with 2 to 25 recurring
  • R 1 - (CR 2 R 3 ) n - JZ -L - U ⁇ ) contains at least 9 carbon atoms, in an unpredictable manner, to provide motor oil compositions with a reduced tendency to form deposits, the reduction of which Deposits used additives can be produced particularly easily and inexpensively.
  • R 1 , R 2 and R 3 are independently hydrogen or a
  • R * is hydrogen, a methyl or ethyl radical
  • L is a linking group
  • n is an integer in the range from 4 to 40
  • A is an alkoxy group with 2 to 25 recurring
  • Compounds added to motor oil compositions to reduce the formation of deposits are very stable, so that the oil change intervals can be very long.
  • the additives added to the engine oil compositions of the present invention to reduce scale formation are very effective.
  • the motor oil composition must have a compound of the formula (I)
  • R 1 , R 2 and R 3 are independently hydrogen or a
  • R 4 is hydrogen, a methyl or ethyl radical
  • L is a linking group
  • n is an integer in the range from 4 to 40
  • A is an alkoxy group with 2 to 25 recurring
  • alkyl alkoxylates contains at least 9 carbon atoms.
  • these compounds are referred to as alkyl alkoxylates. These compounds can be used both individually and as a mixture.
  • hydrocarbon radicals having up to 40 carbon atoms are to be understood as meaning, for example, saturated and unsaturated alkyl radicals, which can be linear, branched or cyclic, and aryl radicals, which can also contain heteroatoms and alkyl substituents, which may have substituents, such as halogens, can be provided.
  • (C 1 -C 20 ) -alkyl in particular (C-- C ⁇ ) -alkyl and very particularly (C.-C-alkyl residues) are preferred.
  • (C 1 - alkyl) is an unbranched or branched hydrocarbon radical having 1 to 4 carbon atoms, such as, for example, the methyl, ethyl, propyl, isopropyl, 1-butyl, 2-butyl, 2- Understand methyl propyl or tert-butyl;
  • (C.-C 8 ) alkyl the abovementioned alkyl radicals, and for example the pentyl, 2-methylbutvl, I .T-dimethylpropyl, hexyl, heptyl, octyl, or the 1,1 , 3, 3-tetramethylbutyl residue;
  • (C.-C 20 ) alkyl the abovementioned alkyl radicals, and for example the nonyl, 1-decyl, 2-decyl, undecyl, dodecyl, pentadecyl or eicosyl radical.
  • (C 3 -C ⁇ ) cycloalkyl radicals are preferred as the hydrocarbon radical. These include the cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl group.
  • (C 2 -C 20 ) alkenyl the abovementioned radicals and, for example, the 2-pentenyl, 2-decenyl or the 2-eicosenyl group;
  • (C 2 -C 4 ) alkynyl for example the ethynyl, propargyl, 2-methyl -2-propynyl or 2-butynyl group;
  • (C 2 -C 20 ) alkenyl is to be understood to mean the radicals mentioned above and, for example, the 2-pentinyl or the 2-decynyl group.
  • aromatic radicals such as “aryl” or “heteroaromatic ring systems” are preferred.
  • aryl is to be understood as an isocyclic aromatic radical with preferably 6 to 14, in particular 6 to 12, C-ato enes, such as, for example, phenyl, naphthyl or biphenylyl, preferably phenyl;
  • heteromatic ring system means an aryl radical in which at least one CH group has been replaced by N and / or at least two adjacent CH groups have been replaced by S, NH or 0, for example a radical of thiophene, furan, Pyrrole, thiazole, oxazole, imidazole, isothiazole, isoxazole, pyrazole, 1,3,4-oxadiazole, 1, 3, 4-thiadiazole, 1, 3, 4-triazole, 1,2,4-oxadiazole, 1, 2, 4-thiadiazole, 1, 2, 4-triazole, 1,2,3-triazole, 1, 2, 3, 4-tetrazole, benzo [b] thiophene, benzo [b] furan, indole, benzo [c] thiophene, Benzo [c] furan, isoindole, benzoxazole, benzothiazole, benzimidazole, benzisoxazole, benzisothi
  • Benzothiadiazole benzotriazole, dibenzofuran, dibenzothiophene, carbazole, pyridine, pyrazine, pyrimidine, pyridazine, 1, 3, 5-triazine, 1, 2, 4-triazine, 1,2,4,5-triazine, quinoline, isoquinoline, quinoxaline, Quinazoline, cinnoline, 1, 8-naphthyridine, 1, 5-naphthyridine, 1,6-naphthyridine, 1, 7-naphthyridine, phthalazine, pyridopyrimidine, purine, pteridine or 4H-quinolizine.
  • radicals R 2 or R 3 which may occur repeatedly in the hydrophobic part of the molecule can each be the same or different.
  • the linking group L serves to connect the polar alkoxide part of the alkyl alkoxide according to the invention to the non-polar alkyl radical.
  • n is an integer in the range from 4 to 40, in particular in the range from 10 to 30. If n is greater than 40, the viscosity which is produced by the additive according to the invention generally becomes too large. If n is less than 4, the lipophilicity of the part of the molecule is generally not sufficient to keep the compound of the formula (I) in solution. Accordingly, the non-polar part of the compound (I) of the formula (II) preferably contains a total of 10 to 100 carbon atoms and all particularly preferably a total of 10 to 35 carbon atoms.
  • the radical R 5 is hydrogen, a methyl radical and / or ethyl radical and m is an integer in the range from 2 to 40, preferably 2 to 25, in particular 2 and 15 and very particularly preferably 2 to 5.
  • the abovementioned numerical values are to be understood as mean values in the context of the present invention, since this part of the alkyl alkoxylate is generally obtained by polymerization. If m is greater than 40, the solubility of the compound in the hydrophobic environment becomes too low, so that it can become cloudy in the oil, possibly precipitating. If the number is less than 2, the desired effect cannot be guaranteed.
  • the polar part can have units derived from ethylene oxide, from propylene oxide and / or from butylene oxide, with ethylene oxide being preferred.
  • the polar part can have only one of these units. However, these units can also occur statistically in the polar remainder.
  • the number z results from the choice of the connecting group or from the starting compounds used. It is 1 or 2.
  • the number of carbon atoms of the nonpolar part of the alkyl alkoxylate according to formula (II) is preferably greater than the number of carbon atoms of the polar part A, probably according to formula (III), of this molecule.
  • the nonpolar part preferably contains at least twice as many carbon atoms as the polar part, particularly preferably three times or more.
  • the preparation of the alkyl alkoxylates depends, among other things, on the type of connecting group chosen.
  • additives with an ether group according to the invention are formed via the reaction of so-called fatty alcohols with ethylene oxide, propylene oxide and / or butylene oxide.
  • long-chain fatty acids can also be ethoxylated, for example. This creates esters.
  • ® Marlophen NP 3 nonylphenol polyethylene glycol ether (3EO)
  • ® Marlophen NP 4 nonylphenol polyethylene glycol ether (4EO)
  • ® Marlophen NP 5 nonylphenol polyethylene glycol ether (5EO)
  • ® Marlophen NP 6 nonylphenol polyethylene glycol (6EO);
  • ® Lutensol TO 3 (iC 13 fatty alcohol with 3 EO units), ® Lutensol TO 5 (iC 13 fatty alcohol with 5 EO units), ® Lutensol TO 7 (iC 13 fatty alcohol with 7 EO units), ® Lutensol TO 8 (iC 13 fatty alcohol with 8 EO units) and ® Lutensol TO 12 (iC 13 fatty alcohol with 12 EO units).
  • the motor oil composition according to the invention contains 0.05 to 10% by weight of alkyl alkoxylates of the formula (I), based on the total weight of the mixture. If the amount is less than 0.05% by weight, the reduction in the formation of deposits is insufficient. The upper limit mainly results from economic considerations.
  • Motor oil in the context of the present invention is to be understood as oils which meet one or more of the performance requirements mentioned at the outset.
  • the compositions according to the invention can also be regarded as motor oil formulations.
  • oils generally have a base oil and one or more additives that are well known in the art.
  • any compound that provides a sufficient lubricating film that does not crack even at elevated temperatures is suitable as the base oil.
  • the viscosities can be used, for example, as specified in the SAE specifications.
  • Particularly suitable are, inter alia, compounds which have a viscosity which is in the range from 15 Saybolt seconds (SUS, Saybolt Universal Seconds) to 250 SUS, preferably in the range from 15 to 100 SUS, in each case at 100 ° C.
  • the compounds suitable for this include natural oils, mineral oils and synthetic oils, and mixtures thereof.
  • Natural oils are animal or vegetable oils, such as claw oils or jojoba oils. Mineral oils are mainly obtained from crude oil by distillation. They are particularly advantageous in terms of their low price. Synthetic oils include organic esters, synthetic hydrocarbons, especially polyolefins, which meet the above requirements. They are usually somewhat more expensive than mineral oils, but have advantages in terms of their performance. These base oils can also be used as mixtures and are commercially available in many cases.
  • engine oils In addition to the base oil, engine oils generally contain additives.
  • the additives cause a favorable flow behavior at low and high temperatures (improvement in the viscosity index), they suspend solids (detergent-dispersant behavior), neutralize acidic reaction products and the like. form a protective film on the cylinder surface (EP additive, for "extreme pressure”).
  • EP additive for "extreme pressure”
  • anti-aging agents pour point depressants, anti-corrosion agents, dyes, demulsifiers and odorants are used. The expert can find further valuable information in Ulimann's Encyclopedia of Industrial Chemistry, Fifth Edition on CD-ROM, 1998 edition.
  • the amounts in which these additives are used depend on the area of application of the lubricant. In general, however, the proportion of the base oil is between 25 to 90% by weight, preferably 50 to 75% by weight.
  • the additives can also be used as DI packages (detergent inhibitor), which are widely known and can be obtained commercially.
  • particularly preferred motor oils contain
  • lubricity improver 1-10% by weight lubricity improver, 0.0002-0.07% by weight of contraceptive, 0.1-1% by weight of anti-corrosion agent.
  • the motor oil according to the invention can be produced by mixing the components.
  • the alkyl alkoxylate of formula (I) is the alkyl alkoxylate of formula (I)
  • Lubricant concentrates which contain, for example, 5-95% of the alkyl alkoxylates of the formula (I), 95-5% of a lubricating oil and optionally 0-70% of a VI improver can also be used here.
  • the oil deposits are determined according to a visual procedure specified in DIN or CEC, in which the nature and thickness of the deposits are documented. With a key figure system for weighting the properties and thickness, an evaluation number of 0 -10 or 100 is determined for the individual component evaluated and as an average of all evaluated components an evaluation number for the entire engine and thus for the oil. 20th
  • Example 1 the investigated additives have a positive effect on the formation of deposits in motor operation, shown here using the VWTDIC test as an example, which is part of the test scope of ACEA Category B.
  • An engine oil composition B according to the invention was mixed by adding a non-ash-giving detergent according to the formula (I) (Marlipal 24/20) and in the CEC-L-46-T-93 engine test (1.61 VW Turbodiesel Intercooler) for its effect on preventing deposits examined.
  • a corresponding, conventional composition A which contained no alkyl alkoxylate of the formula (I) according to the invention, served as a comparison.
  • 15W-40 compositions were mixed from the commercially available components listed in Table 1 and run in the CEC-L-46-T-93 test. The deposits formed in the engine were then evaluated according to the procedures listed above.
  • OLOA 4594 from Oronite is a commercially available DI package which also contains ash-giving detergents which contain, for example, calcium, zinc, magnesium.
  • Paratone 8002 from Exxon / Paramins is a commercially available oil improver for motor oils, which contains Olef incopoly ere (OCP).

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Cosmetics (AREA)
EP00916867A 1999-03-04 2000-02-24 Motorenölzusammensetzung mit reduzierter neigung zur bildung von ablagerungen Ceased EP1161513A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19909401 1999-03-04
DE19909401A DE19909401A1 (de) 1999-03-04 1999-03-04 Motorenölzusammensetzung mit reduzierter Neigung zur Bildung von Ablagerungen
PCT/EP2000/001534 WO2000052117A1 (de) 1999-03-04 2000-02-24 Motorenölzusammensetzung mit reduzierter neigung zur bildung von ablagerungen

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US (1) US6458750B1 (ko)
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JP (1) JP2002538266A (ko)
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CN (1) CN1252232C (ko)
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KR100454323B1 (ko) 2004-10-26
JP2002538266A (ja) 2002-11-12
DE19909401A1 (de) 2000-09-07
US6458750B1 (en) 2002-10-01
KR20020010120A (ko) 2002-02-02
CA2372458A1 (en) 2000-09-08
CN1347444A (zh) 2002-05-01
WO2000052117A1 (de) 2000-09-08
AU3806400A (en) 2000-09-21
BR0008634A (pt) 2001-12-26
CN1252232C (zh) 2006-04-19

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