EP1385926B1 - Schmierölzusammensetzung enthaltend ein gemisch aus carboxylsäuren und aminen als rostschutzmittel - Google Patents

Schmierölzusammensetzung enthaltend ein gemisch aus carboxylsäuren und aminen als rostschutzmittel Download PDF

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Publication number
EP1385926B1
EP1385926B1 EP02745288A EP02745288A EP1385926B1 EP 1385926 B1 EP1385926 B1 EP 1385926B1 EP 02745288 A EP02745288 A EP 02745288A EP 02745288 A EP02745288 A EP 02745288A EP 1385926 B1 EP1385926 B1 EP 1385926B1
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Prior art keywords
lubricating oil
oil composition
carboxylic acid
carbon atoms
weight
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EP02745288A
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English (en)
French (fr)
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EP1385926A1 (de
Inventor
Yoshiharu Baba
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Shell Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
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    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
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    • C10M2215/066—Arylene diamines
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    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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    • C10M2219/046—Overbasedsulfonic acid salts
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    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
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    • C10M2219/106—Thiadiazoles
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    • C10M2219/108—Phenothiazine
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
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    • C10M2223/041—Triaryl phosphates
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    • C10M2223/04—Phosphate esters
    • C10M2223/042—Metal salts thereof
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    • C10M2223/049—Phosphite
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/10—Phosphatides, e.g. lecithin, cephalin
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    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
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    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
    • 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
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • the present invention relates to a lubricating oil composition which has excellent anti-rust properties in severe operating environments in which water or seawater is admixed, and which also exhibits excellent properties in terms of both the lubricating properties and anti-corrosion properties in various types of machinery.
  • Anti-rust agents are added to lubricating oils to protect the mechanical parts from rusting when water or seawater is admixed.
  • anti-rust agents are strongly adsorbed on the metal surface to form a rustproof film on the metal surface, thus preventing direct contact between the metal and water from occurring and thereby inhibiting the formation of rust.
  • EP-A-0744456 describes a lubricant which comprises at least one oil of lubricating viscosity and at least (a) at least one oil-soluble metal-free sulphur-containing anti-wear and/or extreme pressure agent having a copper corrosion test activity of not more than 65; (b) at least one oil soluble metal-free phosphorus- and nitrogen-containing antiwear and/or extreme pressure agent; (c) at least one oil-soluble organic carboxylic acid; and (d) at least one oil-soluble organic amine.
  • US-A-5152908 discloses a gear lubricant comprising a major amount of an oil of lubricating viscosity and a minor amount of an additive package which is comprised of (a) a treated zinc dithiophosphate, (b) an overbased carboxylate which is preferably borated, (c) an alkylamine and (d) a sulphurised olefin.
  • WO-A-00/11122 discloses a lubricating oil composition
  • a lubricating oil composition comprising (I) 100 parts by weight of a base Oil for a lubricating oil; (II) as an anti-wear agent, (i) (a) from 0.05 to 10 parts by weight of a phosphorothionate as described therein, and (b) from 0.01 to 1.0 part by weight of an amine salt of a phosphorus compound which phosphorus compound is as described therein, and/or (ii) from 0.05 to 10 parts by weight of a dithiophosphate as described therein; (III) as a rust preventing agent, from 0.01 to 1.0 part by weight of a polyalkylene polyamide obtained by reacting (a) a polyalkylene polyamine as described therein, and (b) a carboxylic acid having from 4 to 30 carbon atoms.
  • EP-A-0434464 describes a lubricant composition which comprises (a) a metal-free anti-wear or load carrying additive containing sulphur and/or phosphorus, and (b) a corrosion inhibitor in the form of an amino succinate ester of formula R 1 OOC(CR 3 R 4 )CR 5 (NR 6 R 7 )COOR 2 in which R 1 and R 2 are each alkyl of 1 to 30 carbon atoms, R 3 , R 4 and R 5 are each hydrogen or alkyl of 1 to 4 carbon atoms, and R 6 and R 7 are each hydrogen, alkyl of 1 to 30 carbon atoms, or an acyl group derived from a saturated or unsaturated carboxylic acid of up to 30 carbon atoms, at least one of R 6 and R 7 being an acyl group.
  • R 1 and R 2 are each alkyl of 1 to 30 carbon atoms
  • R 3 , R 4 and R 5 are each hydrogen or alkyl of 1 to 4 carbon atoms
  • R 6 and R 7
  • the present invention provides a lubricating oil composition comprising a minor amount of an additive combination comprising
  • major amount in the present invention is meant at least 50 wt. %, with respect to the total weight of the lubricating oil composition.
  • Said composition comprises from 0.001 to 0.5 part by weight of the carboxylic acid-based or carboxylic acid ester-based anti-rust agent; and from 0.001 to 0.05 part by weight of the at least one type of amine, per 100 parts by weight of lubricating oil base oil.
  • said composition comprises from 0.001 to 0.05 part by weight of the carboxylic acid-based or carboxylic acid ester-based anti-rust agent, per 100 parts by weight of lubricating oil base oil. More preferably, said composition comprises from 0.005 to 0.05 part by weight of said anti-rust agent, per 100 parts by weight of lubricating oil base oil.
  • Said extreme pressure additive of formula (3) is preferably present in an amount in the range of from 0.001 to 0.5 part by weight, more preferably from 0.001 to 0.02 part by weight, per 100 parts by weight of lubricating oil base oil.
  • Said extreme pressure additive of formula (4) is preferably present in an amount in the range of from 0.05 to 5 parts by weight, more preferably from 0.05 to 0.5 part by weight, per 100 parts by weight of lubricating oil base oil.
  • Said extreme pressure additive of formula (5) is preferably present in an amount in the range of from 0.01 to 0.5 part by weight, more preferably from 0.01 to 0.1 part by weight, per 100 parts by weight of lubricating oil base oil.
  • the lubricating oil composition of the present invention may optionally comprise one or more of compounds of formulae (3) to (5) as extreme pressure additives.
  • the lubricating oil base oil from which the lubricating oil composition of the present invention is constituted is not subject to any particular limitation, provided that it comprises petroleum-based oil and/or synthetic hydrocarbon-based oil.
  • Lubricating oil base oils having a kinematic viscosity of from 2 to 680 mm 2 /s (40°C), preferably of from 5 to 320 mm 2 /s (40°C), and most preferably of from 8 to 220 mm 2 /s (40°C); a total sulphur content (wt. %) of from 0 to 1 wt. %, and preferably of from 0 to 0.3 wt. %; a total nitrogen content (wt. ppm) of from 0 to 100 ppm, and preferably of from 0 to 30 ppm; and an aniline point of from 80 to 130°C, and preferably of from 100 to 125°C, are preferred.
  • the petroleum-based lubricating oil base oils which can be used in the present invention may be, for example, individual solvent refined base oils, hydrogenation refined base oils or highly hydrogenated and cracked base oils, or mixtures of such oils.
  • Highly hydrogenated cracked base oils are lubricating oil base oils which have a viscosity index of at least 130 (typically from 145 to 155) obtained with a slack wax which has been cracked and solvent de-waxed as the raw material by isomerizing the linear chain paraffins to branched paraffins by hydrogenation cracking in the presence of a catalyst (contact cracking), or lubricating base oils which have a viscosity index of at least 130 (typically from 145 to 155) obtained using heavy linear chain paraffins which have been obtained by Fischer-Tropsch polymerization using the carbon monoxide and hydrogen obtained by a gasification process (partial oxidation) of a natural gas (such as methane) and subjecting this to catalytic cracking and isomerization in the same way as above
  • the synthetic hydrocarbon-based base oils which may be used in the present invention include the olefin oligomers obtained by the homopolymerization or copolymerization of monomers which have been selected from among the linear chain and branched olefinic hydrocarbons which have from 3 to 15 carbon atoms, and preferably from 4 to 12 carbon atoms.
  • the petroleum based lubricating oil base oils and synthetic hydrocarbon based base oils can be used individually or in the form of mixtures.
  • the carboxylic acid based or carboxylic acid ester-based anti-rust agents which can be used in the present invention have a carboxylic acid or carboxylic acid ester group in the anti-rust agent molecule and they are widely used generally in lubricating oils.
  • Said anti-rust agents include, for example, monocarboxylic acids which have from 8 to 30 carbon atoms, alkyl or alkenyl succinates or partial esters thereof, hydroxy-fatty acids which have from 12 to 30 carbon atoms and derivatives thereof, sarcosines which have from 8 to 24 carbon atoms and derivatives thereof, amino acids and derivatives thereof, naphthenic acid and derivatives thereof, lanolin fatty acid, mercapto-fatty acids and paraffin oxides.
  • anti-rust agents are indicated below.
  • Caprylic acid pelargonic acid, decanoic acid, undecanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid, behenic acid, cerotic acid, montanic acid, melissic acid, oleic acid, docosanic acid, erucic acid, eicosenic acid, beef tallow fatty acid, soy bean fatty acid, coconut oil fatty acid, linolic acid, linoleic acid, tall oil fatty acid, 12-hydroxystearic acid, laurylsarcosinic acid, myritsylsarcosinic acid, palmitylsarcosinic acid, stearylsarcosinic acid, oleylsarcosinic acid, alkylated (C8 - C20) phenoxyacetic acids, lanolin fatty acid and C8 - C24 mercapto-fatty acids.
  • R 7 and R 8 each independently represent hydrogen or a group selected from among the C1 to C30 alkyl groups, the C1 to C30 acyl groups and the alkyloxide groups
  • R 9 to R 13 each independently represent hydrogen or a group selected from among the C1 to C30 alkyl groups.
  • Examples of the aforementioned alkylamines represented by general formula (1) include primary amines such as laurylamine, coconut-amine, n-tridecylamine, myristylamine, n-pentadecylamine, palmitylamine, n-heptadecylamine, stearylamine, n-nonadecylamine, n-eicosylamine, n-heneicosylamine, n-docosylamine, n-tricosylamine, n-pentacosylamine, oleylamine, beef tallow-amine, hydrogenated beef tallow-amine and soy bean-amine.
  • primary amines such as laurylamine, coconut-amine, n-tridecylamine, myristylamine, n-pentadecylamine, palmitylamine, n-heptadecylamine, stearylamine, n-nonadecylamine, n-
  • secondary amines examples include dilaurylamine, di-coconut-amine, di-n-tridecylamine, dimyristylamine, di-n-pentadecylamine, dipalmitylamine, di-n-pentadecylamine, distearylamine, di-n-nonadecylamine, di-n-eicosylamine, di-n-heneicosylamine, di-n-docosylamine, di-n-tricosylamine, di-n-pentacosylamine, dioleylamine, di-beef tallow-amine, dihydrogenated beef tallow-amine and di-soy bean-amine.
  • N-alkylpolyalkyenediamines which can be represented by general formula (2) include ethylenediamines such as laurylethylenediamine, coconut ethylenediamine, n-tridecylethylenediamine, myristylethylenediamine, n-pentadecylethylenediamine, palmitylethylenediamine, n-heptadecylethylenediamine, stearylethylenediamine, n-nonadecylethylenediamine, n-eicosylethylenediamine, n-heneicosylethylenediamine, n-docosylethylendiamine, n-tricosylethylenediamine, n-pentacosylethylenediamine, oleylethylenediamine, beef tallow-ethylenediamine, hydrogenated beef tallow-ethylenediamine and soy bean-ethylenediamine; propylenediamines such as laurylpropylenediamines such as
  • supplementary additives of the various types which are generally used can be added to the lubricating oil composition of the present invention, as required, in order to further improve the performance thereof.
  • Supplementary additives that may be added to the lubricating oil composition of the present invention include the known lubricating oil additives such as antioxidants, metal deactivators, extreme pressure additives, antifoaming agents, viscosity index increasing agents, flow-point reducing agents, cleaning and dispersing agents, anti-rust agents and anti-emulsification agents.
  • amine-based antioxidants include dialkyldiphenylamines such as p,p'-dioctyldiphenylamine (manufactured by the Seiko Kagaku Co. under the trade designation "Nonflex OD-3"), p,p'-di- ⁇ -methylbenzyldiphenylamine and N-p-butylphenyl-N-p'-octylphenylamine; monoalkyldiphenylamines such as mono-t-butyldiphenylamine, and monooctyldiphenylamine; bis(dialkylphenyl)amines such as di(2,4-diethylphenyl)amine and di(2-ethyl-4-nonylphenyl)amine; alkylphenyl-1-naphthylamines such as octylphenyl-1-naphthylamine and N-t-dodecylphenyl-1-nap
  • sulphur-based antioxidants include dialkylsulphides such as didodecylsulphide and dioctadecylsulphide; thiodipropionic acid esters such as didodecyl thiodipropionate, dioctadecyl thiodipropionate, dimyristyl thiodipropionate and dodecyloctadecyl thiodipropionate, and 2-mercaptobenzimidazole.
  • phenol-based antioxidants examples include 2-t-butylphenol, 2-t-butyl-4-methylphenol, 2-t-butyl-5-methylphenol, 2,4-di-t-butylphenol, 2,4-dimethyl-6-t-butylphenol, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2,5-di-t-butjrlhydroquinone (manufactured by the Kawaguchi Kagaku Co.
  • Antage DBH 2,6-di-t-butylphenol and 2,6-di-t-butyl-4-alkylphenols such as 2,6-di-t-butyl-4-methylphenol and 2,6-di-t-butyl-4-ethylphenol; 2,6-di-t-butyl-4-alkoxyphenols such as 2,6-di-t-butyl-4-methoxyphenol and 2,6-di-t-butyl-4-ethoxyphenol, 3,5-di-t-butyl-4-hydroxybenzylmercaptooctyl acetate, alkyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionates such as n-octyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate (manufactured by the Yoshitomi Seiyaku Co.
  • Yonox SS n-dodecyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate and 2'-ethylhexyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate; 2,6-di-t-butyl- ⁇ -dimethylamino-p-cresol, 2,2'-methylenebis(4-alkyl-6-t-butylphenol) compounds such as 2,2'-methylenebis(4-methyl-6-t-butylphenol) (manufactured by the Kawaguchi Kagaku Co.
  • At-400 under the trade designation "Antage W-400" and 2,2'-methylenebis(4-ethyl-6-t-butylphenol) (manufactured by the Kawaguchi Kagaku Co. under the trade designation "Antage W-500”); bisphenols such as 4,4'-butylidenebis(3-methyl-6-t-butylphenol) (manufactured by the Kawaguchi Kagaku Co.
  • phosphorus-based antioxidants include triaryl phosphites such as triphenyl phosphite and tricresyl phosphite, trialkyl phosphites such as trioctadecyl phosphite and tridecyl phosphite, and tridodecyl trithiophosphite.
  • antioxidants can be used individually or in the form of mixtures, conveniently in amounts within the range of from 0.01 to 2.0 parts by weight, per 100 parts by weight of base oil.
  • the metal deactivating agents which can be used in the lubricating oil a composition of the present invention include benzotriazole and the 4-alkylbenzotriazoles such as 4-methylbenzotriazole and 4-ethylbenzotriazole; 5-alkylbenzotriazoles such as 5-methylbenzotriazole, 5-ethylbenzotriazole; 1-alkylbenzotriazoles such as 1-dioctylaminomethyl-2,3-benzotriazole; benzotriazole derivatives such as the 1-alkyltolutriazoles, for example, 1-dioctylaminomethyl-2,3-tolutriazole; benzimidazole and benzimidazole derivatives such as 2-(alkyldithio)-benzimidazoles, for example, such as 2-(octyldithio)-benzimidazole, 2-(decyldithio)benzimidazole and 2-(dodecyld
  • metal deactivating agents can be used individually or in the form of mixtures, conveniently in an amount within the range of from 0.01 to 0.5 parts by weight, per 100 parts by weight of base oil.
  • the materials which can be used as anti-foaming agents include, for example, dimethylpolysiloxane, organosilicates such as diethylsilicate, the fluorosilicones, and non-silicone based anti-foaming agents such as poly(alkylene acrylate). These can be added and used individually or in the form of mixtures, conveniently in an amount of from 0.0001 to 0.1 part by weight, per 100 parts by weight of base oil.
  • the viscosity index increasing agents which can be used include, for example, polymethacrylates and ethylene/propylene copolymers, other non-dispersion type viscosity index increasing agents such as olefin copolymers like styrene/diene copolymers, and dispersible type viscosity index increasing agents where a nitrogen containing monomer has been copolymerized in such materials. These materials can be added and used individually or in the form of mixtures, conveniently in an amount within the range of from 0.05 to 20 parts by weight per 100 parts by weight of base oil.
  • flow-point reducing agents examples include polymethacrylate based polymers. These materials can be added and conveniently used in an amount within the range from 0.01 to 5 parts by weight per 100 parts by weight of base oil.
  • cleaning and dispersing agents examples include metal-based detergents such as the neutral and basic alkaline earth metal sulphonates, alkaline earth metal phenates and alkaline earth metal salicylates alkenylsuccinimide and alkenylsuccinimide esters and their borohydrides, and ashless dispersing agents which have been modified with sulphur compounds. These agents can be added and used individually or in the form of mixtures, conveniently in an amount within the range of from 0.01 to 1 part by weight per 100 parts by weight of base oil.
  • extreme pressure additives include sulphur-based extreme pressure additives such as dialkyl sulphides, dibenzyl sulphide, dialkyl polysulphides, dibenzyl disulphide, alkyl mercaptans, dibenzothiophene and 2,2'-dithiobis(benzothiazole); phosphorus-based extreme pressure additives such as trialkyl phosphates, triaryl phosphates, trialkyl phosphonates, trialkyl phosphites, triaryl phosphites and dialkylhydrozine phosphites, and phosphorus- and sulphur-based extreme pressure additives such as zinc dialkyldithiophosphates, dialkylthiophosphoric acid, trialkyl thiophosphate esters, acidic thiophosphate esters and trialkyl trithiophosphates.
  • These extreme pressure additives can be used individually or in the form of mixtures, conveniently in an amount within the range from 0.1 to 2 parts by weight,
  • the known anti-emulsifying agents which are generally used as lubricating oil additives can also be used. These agents may be conveniently added and used in an amount within the range from 0.0005 to 0.5 part by weight, per 100 parts by weight of the base oil.
  • anti-emulsifying agents include polyalkylene glycol-based non-ionic surfactants, for example, polyoxyethylenealkyl ethers, polyoxyethylene alkylphenyl ethers and polyoxyethylene alkylnaphthyl ethers.
  • the lubricating oil composition of the present ivnention is useful as a hydraulic oil composition, a compressor oil composition, a turbine oil composition, a bearing oil composition and/or a gear oil composition.
  • Sample oils were prepared by compounding extreme pressure additives and carboxylic acid based and carboxylic acid ester-based anti-rust agents and amines at various concentrations as shown in Table 1 in a hydrogenation refined base oil of kinematic viscosity 31 mm 2 /s at 40°C with a viscosity index of 107, a sulphur content of less than 5 ppm, a nitrogen content of less than 1 ppm and an aniline point of 112°C as the base oil.
  • the effect of the invention was investigated in terms of the anti-rust agent performance and the extreme pressure performance.
  • test methods used for assessing performance in the Examples and Comparative Examples were as indicated below.
  • the A test gear wheels were used in accordance with ISO/WD14635-1 and the gears were run for 15 minutes at each loading stage at an initial oil temperature of 90°C and a motor speed of 1450 rpm. The loading stage at which scorching occurred on the tooth surfaces of the test gear wheel as the load was being increased in stages was observed.
  • compositions and test results are shown in Tables 1 to 3.
  • Comparative Example 1 had only the extreme pressure additive compounded therein. Whilst said example and exhibited good extreme pressure performance in the gear wheel test, rust formed in the anti-rust test as no anti-rust agent and amine had been added thereto.
  • the lubricating oil compositions of the present invention are virtually free, or completely free, of metals which are harmful in respect of both the environment and safety and they maintain a good anti-rust performance whilst also having good extreme pressure performance to match the increased speeds, higher pressures, more compact nature and improvement in durability requirements of modern industrial machinery.
  • the amount of anti-rust agent added can be reduced by means of the present invention and lubricating oil compositions which have excellent performance can be provided more cheaply.
  • the lubricating oil compositions of the present invention are useful as lubricating oil compositions where both anti-rust performance and extreme pressure performance are required and they can be used as hydraulic working oils, gear wheel oils, compressor oils, turbine oils and bearing oils.

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Claims (10)

  1. Schmierölzusammensetzung, die eine kleine Menge an einer Additivkombination, umfassend
    (i) ein Rostschutzmittel auf Carbonsäurebasis oder Carbonsäureesterbasis;
    (ii) wenigstens eine Amintype, ausgewählt aus der Gruppe, die (A) die Alkylamine, die durch die allgemeine Formel (1)

            (R1)nNH3-n     (1)

    dargestellt werden können, worin R1 eine gesättigte oder ungesättigte Alkylgruppe mit 12 bis 30 Kohlenstoffatomen darstellt und n eine ganze Zahl mit dem Wert 1 oder 2 bedeutet; und (B) die N-Alkylpolyalkylendiamine umfasst, die durch die allgemeine Formel (2)

            R2NH(CH2)mNH2     (2)

    dargestellt werden können, worin R2 eine gesättigte oder ungesättigte Alkylgruppe mit 12 bis 30 Kohlenstoffatomen darstellt und m eine ganze Zahl mit dem Wert 2 bis 5 bedeutet;

    und eine Hauptmenge aus einem Schmierölgrundöl, worin diese Zusammensetzung von 0,001 bis 0,5 Gewichtsteile des Rostschutzmittels auf Carbonsäurebasis oder Carbonsäureesterbasis und von 0,001 bis 0,05 Gewichtsteile des wenigstens einen Amintyps je 100 Gewichtsteile Schmierölgrundöl umfasst.
  2. Schmierölzusammensetzung nach Anspruch 1, worin diese Zusammensetzung von 0,001 bis 0,05 Gewichtsteile des Rostschutzmittels auf Carbonsäurebasis oder Carbonsäureesterbasis je 100 Gewichtsteile Schmierölgrundöl umfasst.
  3. Schmierölzusammensetzung nach Anspruch 1 oder 2, die zusätzlich als Höchstdruckadditiv eine oder mehrere Verbindungen, ausgewählt unter einer β-Dithiophosphorylpropionsäure, die durch die allgemeine Formel (3)

            S=P(-O-R3)2SCH2CH(R4)COOH     (3)

    dargestellt werden kann, worin R3 eine verzweigte Alkylgruppe mit 3 bis 8 Kohlenstoffatomen bedeutet und R4 ein Wasserstoffatom oder eine unter den geradkettigen oder verzweigten Alkylgruppen mit 1 bis 4 Kohlenstoffatomen ausgewählte Gruppe bedeutet; einem Triarylphosphorthioat, das durch die allgemeine Formel (4)

            S=P(O-Ph-R5)3     (4)

    dargestellt werden kann, worin Ph eine Phenylgruppe bedeutet und R5 ein Wasserstoffatom oder eine geradkettige oder verzweigte Alkylgruppe mit 1 bis 9 Kohlenstoffatomen bedeutet; und einem sauren Phosphatester, der durch die allgemeine Formel (5)

            O=P(OR6)3-r(OH)r     (5)

    dargestellt werden kann, worin R6 eine geradkettige oder verzweigte Alkylgruppe mit 3 bis 13 Kohlenstoffatomen bedeutet und r eine ganze Zahl mit dem Wert 1 oder 2 ist, umfasst.
  4. Schmierölzusammensetzung nach einem der Ansprüche 1 bis 3, worin das Schmierölgrundöl ein Grundöl auf Erdölbasis und/oder synthetischer Kohlenwasserstoffbasis ist.
  5. Schmierölzusammensetzung nach einem der Ansprüche 1 bis 4, das als Hydraulikölzusammensetzung, Kompressorölzusammensetzung, Turbinenölzusammensetzung, Lagerölzusammensetzung und/oder Getriebeölzusammensetzung verwendet wird.
  6. Verwendung einer kleinen Menge von (i) einem Rostschutzmittel auf Carbonsäurebasis oder Carbonsäureesterbasis und (ii) wenigstens einem Amintyp, ausgewählt aus der Gruppe, die (A) die Alkylamine, die durch die allgemeine Formel (1)

            (R1)nNH3-n     (1)

    dargestellt werden können, worin R1 eine gesättigte oder ungesättigte Alkylgruppe mit 12 bis 30 Kohlenstoffatomen darstellt und n eine ganze Zahl mit dem Wert 1 oder 2 bedeutet; und (B) die N-Alkylpolyalkylendiamine umfasst, die durch die allgemeine Formel (2)

            R2NH(CH2)mNH2     (2)

    dargestellt werden können, worin R2 eine gesättigte oder ungesättigte Alkylgruppe mit 12 bis 30 Kohlenstoffatomen darstellt und m eine ganze Zahl mit dem Wert 2 bis 5 bedeutet, umfasst, als Rostschutzadditivkombination in einer Schmierölzusammensetzung, die eine Hauptmenge an Schmierölgrundöl umfasst.
  7. Verwendung nach Anspruch 6, worin diese Schmierölzusammensetzung von 0,001 bis 0,5 Gewichtsteile Rostschutzmittel auf Carbonsäurebasis oder Carbonsäureesterbasis und von 0,001 bis 0,2 Gewichtsteile des wenigstens einen Amintyps je 100 Gewichtsteile Schmierölgrundöl umfasst.
  8. Verwendung nach Anspruch 6 oder 7, worin diese Zusammensetzung von 0,001 bis 0,05 Gewichtsteile Rostschutzmittel auf Carbonsäurebasis oder Carbonsäureesterbasis je 100 Gewichtsteile Schmierölgrundöl umfasst.
  9. Verwendung nach einem der Ansprüche 6 bis 8, worin die Schmierölzusammensetzung zusätzlich als Höchstdruckadditiv eine oder mehrere Verbindungen, ausgewählt unter einer β-Dithiophosphorylpropionsäure, die durch die allgemeine Formel (3)

            S=P(-O-R3)2SCH2CH(R4)COOH     (3)

    dargestellt werden kann, worin R3 eine verzweigte Alkylgruppe mit 3 bis 8 Kohlenstoffatomen bedeutet und R4 ein Wasserstoffatom oder eine unter den geradkettigen oder verzweigten Alkylgruppen mit 1 bis 4 Kohlenstoffatomen ausgewählte Gruppe bedeutet; einem Triarylphosphorthioat, das durch die allgemeine Formel (4)

            S=P(O-Ph-R5)3     (4)

    dargestellt werden kann, worin Ph eine Phenylgruppe bedeutet und R5 ein Wasserstoffatom oder eine geradkettige oder verzweigte Alkylgruppe mit 1 bis 9 Kohlenstoffatomen bedeutet; und einem sauren Phosphatester, der durch die allgemeine Formel (5)

            O=P(OR6)3-r(OH)r     (5)

    dargestellt werden kann, worin R6 eine geradkettige oder verzweigte Alkylgruppe mit 3 bis 13 Kohlenstoffatomen bedeutet und r eine ganze Zahl mit dem Wert 1 oder 2 ist, umfasst.
  10. Verwendung nach einem der Ansprüche 6 bis 9, worin die Schmierölzusammensetzung eine Hydraulikölzusammensetzung, Kompressorölzusammensetzung, Turbinenölzusammensetzung, Lagerölzusammensetzung und/oder Getriebeölzusammensetzung ist.
EP02745288A 2001-05-11 2002-05-07 Schmierölzusammensetzung enthaltend ein gemisch aus carboxylsäuren und aminen als rostschutzmittel Expired - Lifetime EP1385926B1 (de)

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CN1325620C (zh) 2007-07-11
KR20030096370A (ko) 2003-12-24
ATE318881T1 (de) 2006-03-15
EP1385926A1 (de) 2004-02-04
JP2002338983A (ja) 2002-11-27
CN1522295A (zh) 2004-08-18
WO2002092735A1 (en) 2002-11-21
ES2259375T3 (es) 2006-10-01
CA2447044A1 (en) 2002-11-21
US20040214733A1 (en) 2004-10-28
DK1385926T3 (da) 2006-07-10
DE60209497T2 (de) 2006-11-16
KR100866811B1 (ko) 2008-11-04
JP4608129B2 (ja) 2011-01-05

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