EP1394289B1 - Rostverhindernde ölzusammensetzung - Google Patents

Rostverhindernde ölzusammensetzung Download PDF

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Publication number
EP1394289B1
EP1394289B1 EP02714499A EP02714499A EP1394289B1 EP 1394289 B1 EP1394289 B1 EP 1394289B1 EP 02714499 A EP02714499 A EP 02714499A EP 02714499 A EP02714499 A EP 02714499A EP 1394289 B1 EP1394289 B1 EP 1394289B1
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Prior art keywords
isomers
mass
content
rust preventive
oil
Prior art date
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Expired - Lifetime
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EP02714499A
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English (en)
French (fr)
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EP1394289A4 (de
EP1394289A1 (de
Inventor
T. c/o Nippon Mitsubishi Oil Corp. SUGAWARA
Tadaaki c/o NIPPON MITSUBISHI OIL CORP. MOTOYAMA
Y c/o Nippon Petroleum Processing Co Ltd IWAMURA
Yukio c/o NIPPON MITSUBISHI OIL CORP. MATSUZAKI
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Eneos Corp
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Nippon Oil Corp
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Priority claimed from JP2001109173A external-priority patent/JP2002302690A/ja
Priority claimed from JP2001119758A external-priority patent/JP2002114989A/ja
Priority claimed from JP2001236385A external-priority patent/JP2002363592A/ja
Application filed by Nippon Oil Corp filed Critical Nippon Oil Corp
Publication of EP1394289A1 publication Critical patent/EP1394289A1/de
Publication of EP1394289A4 publication Critical patent/EP1394289A4/de
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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
    • C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
    • C10M135/10—Sulfonic acids or 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/08—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 sulfur-, selenium- or tellurium-containing compound
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
    • C10M157/06—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential at least one of them being a sulfur-, selenium- or tellurium-containing compound
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/104—Aromatic fractions
    • C10M2203/1045—Aromatic fractions used as base material
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/106—Naphthenic fractions
    • C10M2203/1065—Naphthenic fractions used as base material
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    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/12—Oxidised hydrocarbons, i.e. oxidised subsequent to macromolecular formation
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    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/14—Synthetic waxes, e.g. polythene waxes
    • C—CHEMISTRY; METALLURGY
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    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
    • 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
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
    • 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
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • 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
    • C10M2207/40—Fatty vegetable or animal oils
    • 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
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/223—Five-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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C—CHEMISTRY; METALLURGY
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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
    • C—CHEMISTRY; METALLURGY
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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
    • C10N2030/40—Low content or no content compositions
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/40—Low content or no content compositions
    • C10N2030/41—Chlorine free or low chlorine content compositions
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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
    • C10N2030/52—Base number [TBN]
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
    • C10N2060/04—Oxidation, e.g. ozonisation

Definitions

  • GB 2157310 A relates to coating compositions which protect metal sheets against the formation of rust and which act as lubricants which make easier the shaping of the sheets, for example, by stamping, which composition comprises a blend of:
  • rust preventive oils are usually applied on plate materials made of metals such as steel sheets for automobile bodies and appliance bodies when they are shipped.
  • a cleaning oil having the rust prevention ability is sometimes used.
  • a cleaning process is carried out for bearing parts to remove foreign matters after processes, and rust preventive oils are applied after the cleaning, then the parts are shipped.
  • the cleaning oil having the rust prevention ability is sometimes used.for the cleaning process.
  • the content of aromatic components in base oils is preferably in an amount of not more than 50% by mass based on the total weight of the composition.
  • the rust preventive oil compositions according to the present invention have a total base number of 1 to 20mgKOH/g, preferably the content of sulfonate and the total base number is represented by the following formula (2): TBN / C s ⁇ 3 (Wherein C s represents a content [% by mass] of sulfonate, and TBN represents the total base number [mgKOH/g].)
  • All sulfonates according to the present invention are highly safe to human body or ecosystem, and are obtained by reactions of alkaline metal, alkaline earth metal (with the exception of barium) or amine with sulfonic acid.
  • alkaline metals according to the present invention include sodium, potassium and the like, and alkaline earth metals include magnesium, calcium, and the like, and are preferably sodium, potassium and calcium.
  • alkanolamine examples include monomethanolamine, dimethanolamine, trimethanolamine, monoethanolamine, diethanolamine, triethanolamine, mono (n-propanol) amine, di (n-propanol) amine, tri(n-propanol)amine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, monobutanolamine (includes all isomers), dibutanolamine (includes all isomers), tributanolamine (includes all isomers), monopentanolamine (includes all isomers), dipentanolamine (includes all isomers), tripentanolamine (includes all isomers), monohexanolamine (includes all isomers), dihexanolamine (includes all isomers), monoheptanolamine (includes all isomers), diheptanolamine (includes all isomers), diheptan
  • sulfonic acid made by a common procedure can be used as sulfonic acid according to the present invention.
  • Specific examples of sulfonic acid generally include petroleum sulfonic acids such as those made by sulfonation of an alkylaromatic compounds which are lubricant distillates of a mineral oil and so- called mahogany acid made as a by-product during a manufacturing of white oil, or synthetic sulfonic acids such as those made by sulfonation of alkylbenzenes having straight chain or branched alkyl groups and the one made by sulfonation of alkylnaphthalene such as dinonylnaphthalene.
  • the alkylbenzene is obtained from a by-product at a manufacturing plant of alkylbenzene used for a raw material of cleaning oils, or is obtained by alkylation of benzene with polyolefin.
  • the molecular weight of sulfonic acid is preferably 100 to 1500, and more preferably 200 to 700.
  • At least one kind of compound selected from the following group is preferable, namely, dialkylnaphthalene sulfonic acid having 14 to 30 total carbon atoms in 2 alkyl groups that are bonded to a naphthalene ring; dialkylbenzene sulfonic acid in which 2 alkyl groups bonding to a benzene ring are each independently a straight chain alkyl group or a branched alkyl group having one side chain methyl group, and also the total number of carbon atoms in 2 alkyl groups is 14 to 30; and monoalkylbenzene sulfonic acid having not less than 15 carbon atoms in an alkyl group bonding to a benzene ring.
  • dialkylbenzene sulfonic acid preferably used according to the present invention is the one in which 2 alkyl groups bonding to a benzene ring are each independently a straight chain alkyl group or a branched alkyl group having one side chain methyl group, and also the total number of carbon atoms in 2 alkyl groups is 14 to 30.
  • monoalkylbenzene sulfonic acid when the carbon number of an alkyl group is not less than 15, the acid can be preferably used as described later. However, when the carbon number thereof is less than 15, the storage stability of the rust preventive oil composition tends to become poor.
  • the storage stability of the rust preventive oil composition also tends to become poor.
  • the alkyl group bonding to a benzene ring in dialkylbenzene sulfonic acid is a branched alkyl group which has a branched structure other than a side chain methyl group (for example, a branched alkyl group having a side chain ethyl group, and the like) and a branched alkyl group which has not less than 2 branched structures (for example, a branched alkyl group derived from propylene origomer, and the like), there is a fear of a malign influence on human body or ecosystem and a poor rust prevention ability.
  • monoalkylbenzene sulfonic acid preferably used according to the present invention is the compound having not less than 15 carbon atoms in one alkyl group which is bonded to a benzene ring as described above.
  • the carbon number in the alkyl group bonding to a benzene ring is less than 15, the storage stability of the obtained rust preventive oil composition tends to become poor.
  • the alkyl group bonding to a benzene ring can be a straight chain or a branched, as long as the carbon number is not less than 15.
  • chlorine concentration in sulfonate is preferably not more than 200ppm by mass, more preferably not more than 100ppm by mass, even more preferably not more than 50ppm by mass, and most preferably not more than 25ppm by mass.
  • the content of sulfonate is in an amount of 1 to 10% by mass based on the total weight of the rust preventive oil composition as described above.
  • the content of sulfonate is preferably in an amount of not less than 2% by mass based on the total weight of the rust preventive oil composition, and more preferably not less than 4% by mass.
  • the content of sulfonate according to the present invention exceeds 10% by mass, an improvement effect of the rust prevention ability is not proportional to the content of sulfonate.
  • the content of sulfonate is preferably in an amount of not more than 9% by mass based on the total weight of the rust preventive oil composition, and more preferably not more than 8% by mass.
  • the solution made by dissolving the forgoing sulfonate into carrier oil at 20 to 60% by mass may be also used, and it is commercially available.
  • the prescribed amount of sulfonate is adjusted by weighing the amount of above-mentioned solution that contains the prescribed amount of net sulfate (for example, in the case of 50% by mass solution, use the above-mentioned solution twice as much as the prescribed amount of sulfate).
  • each element of barium, zinc, chlorine and lead is in an amount of not more than 1000ppm by mass based on the total weight by element conversion of the composition.
  • the content of barium, zinc, chlorine and lead is preferably in an amount of not more than 500ppm by mass, more preferably not more than 100ppm by mass, even more preferably not more than 50ppm by mass, furthermore preferably not more than 10ppm by mass, and most preferably not more than 5ppm by mass.
  • the compound which has a group represented by the following general formula (1) is in an amount of not more than 1000ppm by mass based on the total weight of the composition, wherein R 1 represents an alkyl group having 1 to 24 carbon atoms, R 2 represents an alkylene group having 2 to 4 carbon atoms, m represents an integer of 1 to 5, and n represents an integer of 1 to 6.
  • R 1 represents an alkyl group having 1 to 24 carbon atoms
  • R 2 represents an alkylene group having 2 to 4 carbon atoms
  • m represents an integer of 1 to 5
  • n represents an integer of 1 to 6.
  • polyolefin according to the present invention include homopolymer or copolymer of olefin monomer having 2 to 16 carbon atoms, preferably 2 to 12 carbon atoms, and hydride of these polymers, and the like.
  • polyolefin is copolymer of olefin monomer that has a different structure, no particular limitation is imposed on a monomer ratio and monomer arrangement of the copolymer, and any of random copolymer, alternating copolymer and block copolymer may be used.
  • the above-mentioned polyolefin can be obtained by conventionally well-known processes.
  • the parts made of various organic materials besides metal parts are generally used for equipments on which metal parts such as a steel sheet, and a bearing are mounted, and furthermore, organic materials are occasionally used as packing materials upon shipment of the metal parts. Therefore, it is occasionally required to the rust preventive oils to have an excellent compatibility with organic materials.
  • the content of the hydrocarbon having not more than 25 carbon atoms in the high viscosity base oil is preferably not more than 20% by mass, more preferably not more than 10% by mass, particularly preferably not more than 5% by mass, and more particularly preferably not more than 1% by mass.
  • At least one kind of compound selected from the following group (A) to (F) is preferably formulated:
  • fatty acid examples include saturated fatty acids such as hexanoic acid (includes all isomers), heptanoic acid (includes all isomers), octanoic acid (includes all isomers), nonanoic acid (includes all isomers), decanoic acid (includes all isomers), undecanoic acid (includes all isomers), dodecanoic acid (includes all isomers), tridecanoic acid (includes all isomers), tetradecanoic acid (includes all isomers), pentadecanoic acid (includes all isomers), hexadecanoic acid (includes all isomers), heptadecanoic acid (includes all isomers), octadecanoic acid (includes all isomers),nonadecanoic acid (includes all isomers), eicosanoic acid (includes all is
  • partial ester of the polyhydric alcohol obtained by the above-mentioned polyhydric alcohol and the above-mentioned acid include partial esters of glycerin such as glycerin monododecanoate (glycerin monolaurate), glycerin monoisolaurate, glycerin didodecanoate (glycerin dilaurate), glycerin diisolaurate, glycerin monotetradecanoate (glycerin monomyristate), glycerin monoisomyristate, glycerin ditetradecanoate (glycerin dimyristate), glycerin diisomyristate, glycerin monohexadecanoate (glycerin monopalmitate), glycerin monoisopalmitate, glycerin dihexadecanoate (glycerin dipalmitate), glycerin diisopalmitate,
  • the fatty acid salt of the above-mentioned compound (F) denotes a fatty acid which is obtained by reacting at least one kind of component selected from an alkaline metal, an alkaline earth metal (with the exception of barium) and an amine with a fatty acid.
  • the alkaline metal, the alkaline earth metal and the amine used as the raw materials of the above-mentioned fatty acid salt denote the alkaline metal, the alkaline earth metal and the amine exemplified in the explanation of the sulfonate according to the present invention; and the fatty acid denotes the fatty acid exemplified in the explanation of the above-mentioned compound (A).
  • the above-mentioned compounds (A) to (F) may be used singly or in combination of two or more.
  • the compound (B) and/or (F) are preferable among the compounds (A) to (F).
  • the total content of the above-mentioned compounds (A), (C), (D), and (E) is preferably not more than 10% by mass based on the total weight of the composition, more preferably not more than 5% by mass, particularly preferably not more than 3% by mass, and especially preferably not more than 1% by mass.
  • the rust preventive oil composition according to the present invention may contain other additives, if required.
  • other additives used in the present invention are specifically paraffin wax which has a significantly improved exposed rust prevention effect in an acid atmosphere; oils and sulfurized fats which have a significantly improved press formability effect or lubricity, sulfurized ester, long-chain alkyl zinc dithiophosphate, phosphate such as tricresyldiphosphate, oils and fats such as lard, fatty acid, higher alcohol, calcium carbonate, potassium borate; phenol series or amine series antioxidants for improving an oxidation inhibiting performance; corrosion inhibitor for improving corrosion inhibiting performance (benzotriazole or its derivatives, thiadiazole, benzothiazole and the like); wetting agents such as diethyleneglycolmonoalkylether; film forming agents such as acryl polymer, paraffin wax, micro wax, slack wax, polyolefin wax and petrolatum; antifoaming agents such as methyl silicone, fluoro
  • an arbitrary basic compound can be used besides the basic compounds such as the sulfonates, the compound (B) and the compound (F) according to the present invention.
  • basic compounds such as the sulfonates, the compound (B) and the compound (F) according to the present invention.
  • basic compounds are Ca sulfonates where calcium carbonate is dispersed (the so-called perbasicsulfonates), Mg sulfonate where magnesium carbonate is dispersed, Ca salts additives of paraffin oxide where calcium carbonate is dispersed, lanolin additives where calcium carbonate is dispersed, amines (for example, the aforementioned amines), Ca salts of paraffin oxide or Ca calboxylates contained in Ca salts of lanolin fatty acid, an additive which is made by calcium-carboxylation of an almost pure carboxylic acid synthesized for an industrial usage, a non-ash dispersant derived from alkenylsuccinic acid and ethylenediamine, and the
  • the total base number of the rust preventive oil composition according to the present invention is 1 to 20mgKOH/g.
  • the total base number is preferably 1mgKOH/g or more from the viewpoint of rust prevention property, more preferable is 1.5mgKOH/g or more, further preferable is 2mgKOH/g or more and mostly preferable is 3mgKOH/g or more.
  • the total base number is preferably 20mgKOH/g or less, more preferable is 15mgKOH/g or less, further preferable is 10mgKOH/g or less and mostly preferable is 8mgKOH/g.
  • the total base number referred to here denotes the total base number [mgKOH/g] measured by the hydrochloric acid method in accordance with item 6 in JIS K 2501 [Petroleum products and lubricating oil-neutralization value test method].
  • the kinematic viscosity of the rust preventive oil composition at 40° C is 2mm 2 /s or more, further preferred is 2.5mm 2 /s or more, and particularly preferred is 3mm 2 /s or more.
  • the kinematic viscosity at 40° C is 7mm 2 /s or more, more preferred is 10mm 2 /s and further preferred is 15mm 2 /s.
  • the kinematic viscosity at 40 ° C exceeds 1000mm 2 /s, performance in handling of the rust preventive oil composition is liable to deteriorate. Then, due to a similar reason, it is more preferred that the kinematic viscosity at 40° C according to the present invention is 500mm 2 /s or less, further preferred is 100mm 2 /s or less, particularly preferred is 40mm 2 /s or less, and mostly preferred is 20mm 2 /s or less.
  • the rust preventive oil composition according to the present invention when applied to a usage where a cleaning ability is required; namely, when the oil is used as a cleaning rust preventive oil, it is preferred that the kinematic viscosity at 40° C is 10mm 2 /s or less, more preferred is 6mm 2 /s or less, further preferred is 4mm 2 /s or less, and particularly preferred is 3mm 2 /s or less.
  • the rust preventive oil composition of such a constitution according to the present invention has a sufficiently high rust prevention performance and a sufficiently high safety to a human body and ecosystem, and can be also used for various steel sheets such as an automobile vehicle body and for metal parts such as precision parts of bearings.
  • the composition can acquire the more excellent performance in compatibility with an organic material, degreasing property, cleaning ability and the like, the composition is preferably used for these various applications.
  • the rust preventive oil composition according to the present invention can be coated on a metal part with the methods such as spray, shower, dropping, transcription by a felt material and electrostatic oil coating. Further, in a coating process, it is preferred that a drain separation process using a centrifugal separator or a drain separation process by a long time leaving is provided after an excessive rust preventive oil composition is coated.
  • a rust preventive oil is used for metal plate materials such as steel sheets utilized for automobile vehicle bodies or appliance bodies (however, the case of cleaning rust preventive oil is excluded), preferred is spray, shower and electrostatic oil coating, and more preferred is electrostatic oil coating among these coating methods.
  • the quantity of the rust preventive oil composition to be coated on a metal part is not particularly limited, preferred is 0.1 to 20g/m 2 , more preferred is 0.2 to 10g/m 2 , further preferred is 0.3 to 5g/m 2 and particularly preferred is 0.3 to 3g/m 2 .
  • the coated quantity of the rust preventive oil composition is less than the aforementioned lower limit value, the rust prevention performance is liable to be insufficient, and on the other hand, when the coated quantity exceeds the aforementioned upper limit value, an organic material is liable to deteriorate.
  • a magnet is provided at the bottom of a tank where the rust preventive oil composition according to the present invention is stored, thus the foreign matter such as wear-out can be also removed by adsorption by a magnetic force.
  • the performance of the rust preventive oil composition according to the present invention which is reused in such a process may deteriorate due to the incorporation of a pre-treated oil into the process. Therefore, when the rust preventive oil composition according to the present invention is reused, it is preferred that the physical properties of the oil are controlled by regularly measuring the kinematic viscosity or density of the oil reused, and by performing copper plate corrosion test, rust prevention test and the like.
  • an action is preferably conducted such as oil regeneration, drain disposal, tank cleaning and oil purification.
  • the total quantity of the used oil can be reduced by using the oil solution as it is, or by diluting the oil solution with a solvent or a low viscosity base oil for a line requiring a lower performance of the rust preventive oil composition than that for the line used before disposing the oil.
  • the oil composition is replenished in accordance with a reduced quantity thereof in the tank.
  • the rust preventive oil composition according to the present invention may be used in a cleaning process for removing a foreign matter prior to the product shipment in a metal sheet manufacturer.
  • metal sheets can be wound in coils just after the cleaning process or they can be shipped by stacking the products as sheet materials.
  • the rust preventive oil composition according to the present invention can be used as a cleaning rust preventive oil and a shipping rust preventive oil.
  • This method has an advantage that the adhered quantity of a foreign matter is small, and cleaning can be easily and definitely performed if a cleaning process is performed with a cleaning rust preventive oil just before a press work is performed in the press working process.
  • a process where a rust preventive oil is coated again may be provided to perform an rust prevention treatment in two steps following a cleaning process with a cleaning rust preventive oil in a steel sheet manufacturing factory.
  • the solvent dilution type rust preventive oil composition according to the present invention may be used as a cleaning rust preventive oil, however, it is preferred that the following methods are used to more effectively remove the residue. Namely, when a non water metal machining oil is used, it is preferable to provide a method by which a cleaning is performed with a cleaning oil composition where water is dissolved in the base oil using a surfactant.
  • cleaning is performed by a method using a cleaning oil composition where water exchangeability is given by adding amine salts of fatty acid, alkylsuccinic acid derivatives or alkenylsuccinic acid derivatives, phosphates, phosphites and the like to the base oil.
  • rust preventive oil composition according to the present invention, by selecting a proper base oil, an excellent effect is exerted in terms of compatibility with organic materials such as polyethylene, polystyrene, acrylic resin, polycarbonate resin, ABS resin, denatured PPO resin, and the generation of rust can be sufficiently prevented.
  • organic materials such as polyethylene, polystyrene, acrylic resin, polycarbonate resin, ABS resin, denatured PPO resin, and the generation of rust can be sufficiently prevented.
  • the generation of rust can be sufficiently prevented on a metal part without deteriorating the packaging materials comprising the aforementioned materials (cover and the like), structural material (frame materials and the like), window materials, sealants, buffer materials, axis materials, gears, bearing cages, a paper feeder and the arm section of a robot by applying the rust preventive oil composition according to the present invention to the metal parts such as various steel sheets for automobile vehicle bodies and precision parts such as bearings.
  • the rust preventive oil composition according to the present invention is a solvent dilution type rust preventive oil
  • a method for vaporizing the solvent concretely taken up are heating, ventilation, decompression, a long time leaving and the like.
  • air at a room temperature may be blown, and heated air may be also blown.
  • this oil film quantity is preferably 0.1 to 20g/m 2 , more preferably is 0.2 to 10g/m 2 and further preferably is 0.3 to 5g/m 2 .
  • the oil film quantity is less than the aforementioned lower limit value, an rust prevention is liable to be insufficient, on the other hand, when the quantity exceeds the upper limit value, the organic material is liable to deteriorate.
  • Base oil 1 mineral oil (kinematic viscosity at 40° C: 6.5mm 2 /s, initial boiling point: 235° C, final boiling point: 425 ° C, naphthene component: 29%, paraffin component: 58%, aromatic component: 13%, (naphthene/paraffin) ratio: 0.50, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: less than 0.5%, content of hydrocarbons having a carbon atom number of not more than 14: less than 0.5%, content of hydrocarbons having a carbon atom number of not more than 20: about 50%, content of hydrocarbons having a carbon atom number of not more than 25: 97%)
  • Base oil 4 mineral oil (kinematic viscosity at 40° C: 400mm 2 /s, initial boiling point: 440° C, final boiling point: 700 ° C, naphthene component: 15%, paraffin component: 35%, aromatic component: 43%, (naphthene/paraffin) ratio: 0.43, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: less than 0.1%,content of hydrocarbons having a carbon atom number of not more than 14: less than 0.5%, content of hydrocarbons having a carbon atom number of not more than 20: less than 1%, content of hydrocarbons having a carbon atom number of not more than 25: less than 1%)
  • test oil of 5g was poured into a stainless steel pad of bottom area 200 x 300mm, height 30mm, and the test oil was hot air-dried with a general household hair dryer (output: 1200W) for 5 minutes while the distance between a wind-blow outlet and the test oil was kept at 300mm. After that, the test oil was cooled down to a room temperature for 30 minutes, the test was performed on the obtained test oil by the same procedure as that in the compatibility test 1 between the rust preventive oil composition and the resin material. The results are shown in Table 1.
  • rust preventive oil compositions in the Examples 1 to 8 have the rust preventive oil property equivalent to or sufficiently higher than that of a conventional barium series rust preventive oil composition (Comparative Example 1) as shown in Table 1.
  • Base oil 6 mineral oil (kinematic viscosity at 40° C: 6.5mm 2 /s, initial boiling point: 235° C, final boiling point: 425 ° C, naphthene component: 29%, paraffin component: 58%, aromatic component: 13%, (naphthene/paraffin) ratio: .
  • Base oil 7 mineral oil (kinematic viscosity at 40° C: 22mm 2 /s, initial boiling point: 300° C, final boiling point: 485 ° C, naphthene component: 22%, paraffin component: 56%, aromatic component: 22%, (naphthene/paraffin) ratio: 0.39, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 14: less than 1%, content of hydrocarbons having a carbon atom number of not more than 20: about 1%, content of hydrocarbons having a carbon atom number of not more than 25: 33%)
  • Base oil 8 mineral oil (kinematic viscosity at 40° C: 100mm 2 /s, initial boiling point: 335° C, final boiling point: 595 ° C, naphthene component: 25%, paraffin component: 41%, aromatic component: 32%, (naphthene/paraffin) ratio: 0.61, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: 0.1%, content of hydrocarbons having a carbon atom number of not more than 14: less than 0.5%, content of hydrocarbons having a carbon atom number of not more than 20: less than 1%, content of hydrocarbons having a carbon atom number of not more than 25: 3%)
  • Base oil 9 mineral oil (kinematic viscosity at 40° C: 400mm 2 /s, initial boiling point: 440° C, final boiling point: 700 ° C, naphthene component: 15%, paraffin component: 35%, aromatic component: 43%, (naphthene/paraffin) ratio: 0.43,content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 14: less than 0.5%, content of hydrocarbons having a carbon atom number of not more than 20: less than 1%, content of hydrocarbons having a carbon atom number of not more than 25: less than 1%)
  • Base oil 10 mineral oil (kinematic viscosity at 40° C: 2mm 2 /s, initial boiling point: 200° C, final boiling point: 255 ° C, naphthene component: 31%, paraffin component: 68%, aromatic component: 0.5%, (naphthene/paraffin) ratio: 0.46, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: 0.5%, content of hydrocarbons having a carbon atom number of not more than 14: 98%, content of hydrocarbons having a carbon atom number of not more than 20: 100%, content of hydrocarbons having a carbon atom number of not more than 25: 100%)
  • Base oil 11 mineral oil (kinematic viscosity at 40° C: 2mm 2 /s, initial boiling point: 200° C, final boiling point: 245 ° C, naphthene component: 77%, paraffin component: 23%, aromatic component: less than 0.1%, (naphthene/paraffin) ratio: 3.35, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 14: 98%, content of hydrocarbons having a carbon atom number of not more than 20: 100%, content of hydrocarbons having a carbon atom number of not more than 25: 100%)
  • Base oil 12 oligomer of 1-decene (kinematic viscosity at 40° C: 100mm 2 /s, naphthene component: 0%, paraffin component: 100%, aromatic component: 0%, (naphthene/paraffin) ratio: 0, content of hydrocarbons having a carbon atom number of not more than 6: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 8: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 10: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 14: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 20: less than 0.1%, content of hydrocarbons having a carbon atom number of not more than 25: 1% or less)
  • the carrier oils in the aforementioned S5 to S10 are mineral oils with kinematic viscosity of about 20mm 2 /s.
  • the compounding ratios in Table 2 are the values of the aforementioned solutions, and the compounding ratio of the sulfonates in each preventive oil can be calculated by multiplying the compounding ratio of the solution by the rate of the content of the aforementioned net sulfonate.
  • test piece was prepared by cutting a piece of 60 x 80mm size out of a commercially available cold-rolled steel sheet equivalent to SPCE-SD. Next, each rust preventive oil composition was coated on the test piece with an air spray so as to allow the coated quantity to be 3g/m 2 . The test piece after coating was stored in an instrument shelter installed outdoors, and it was observed whether or not rust was generated on the test piece after a predetermined time lapsed, then the rust prevention properties of each rust preventive oil composition were evaluated in accordance with the following standards:
  • test piece was dipped in an alkaline degreasing agent where a nonionic surfactant was blended to sodium phosphate and a sodium silicate series alkaline builder for 2 minutes, and the test piece was washed in running water for 30 seconds. After that, the test piece was vertically held for 20 seconds, and the degreasing property was evaluated in accordance with the following standards in the water-wet area rate:
  • a piece of 60 x 80mm size was cut out of a commercially available cold-rolled steel sheet equivalent to SPCE-SD, and a test piece was prepared by attaching a dust of JIS11 class.
  • test piece was prepared by cutting a disc of 110 mm diameter out of a commercially available cold-rolled steel sheet of 0.75mm thickness equivalent to SPCE-SD.
  • Each rust preventive oil composition was manually coated on the test piece so as to allow the coated quantity to be about 3g/m 2 , and the formability was evaluated by a cylinder formation testing machine with punch diameter of 50mm (shoulder R: 5mm) and die diameter of 52mm (shoulder R: 5mm).
  • the limit BHF[tf](the maximum blank holder force where formation is possible without breakage) obtained on each test piece was evaluated in accordance with the following standards:
  • test oil of 30g was sampled in a glass bottle of 50ml volume. After the test oil was kept at 20° C and RH 50% for 12 hours, the test oil was further kept at 50°C and RH 95% for 2 hours. This treatment was defined as one cycle. This cycle was continuously repeated until cloudiness or precipitation was caused.
  • the storage stability of each test oil was evaluated in accordance with the following standards from the required number of days until the cloudiness or precipitation was caused (number of cycles):
  • the rust preventive oil compositions in the Examples 9 to 16 have the rust preventive oil property equivalent to or sufficiently higher than that of a conventional barium series rust preventive oil composition (Comparative Example 2), and also have excellent degreasing property as shown in Table 3.
  • the rust preventive oil compositions in the Examples 10 and 13 further show a better detergency.
  • the rust preventive oil compositions were prepared by using each component described above. Shown in Table 4-5 are the compounding ratios of each component in the rust preventive oil compositions obtained in each example, the concentrations of the compounds having barium (Ba), zinc (Zn), chlorine (Cl), lead (Pb) and the compounds having a group represented by the aforementioned general formula (1), the content of a sulfonate, the total base number, TBN/C s , the ratio of the sum of the contents of the compounds (A) to (E) and the content of the sulfonate, and the kinematic viscosity at 40° C.
  • Table 4-5 are the compounding ratios of each component in the rust preventive oil compositions obtained in each example, the concentrations of the compounds having barium (Ba), zinc (Zn), chlorine (Cl), lead (Pb) and the compounds having a group represented by the aforementioned general formula (1), the content of a sulfonate, the total base number, TBN/
  • the rust preventive oil compositions in the Examples 17 to 26 have the rust preventive oil property equivalent to or sufficiently higher than that of a conventional barium series rust preventive oil composition (Comparative Example 3) as shown in Tables 4 and 5.
  • a rust preventive oil composition having a sufficiently high rust prevention property and a sufficiently high safety to a human body and the ecosystem without using a barium or zinc series rust prevention agent or a film forming agent containing an alkylene oxide additive of alkylphenol.

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Claims (8)

  1. Rostverhindernde Ölzusammensetzung, worin ein Calciumsulfonat in einer Menge von 1 bis 10 Massenprozent, bezogen auf das Gesamtgewicht der Zusammensetzung, in wenigstens einer Art von Grundöl, ausgewählt aus einer Gruppe bestehend aus einem Mineralöl und einem synthetischen Öl, enthalten ist,
    die Gehalte von Barium, Zink, Chlor und Blei jeweils 1000 Teile je Million Teile (Masseanteil) oder weniger, bezogen auf das Gesamtgewicht durch Elementumrechnung der Zusammensetzung (based on the total weight by element conversion of the composition), betragen, und der Gehalt einer Verbindung mit einer Gruppe, die durch die folgende allgemeine Formel (1) wiedergegeben ist:
    Figure imgb0014
     worin R1 eine Alkylgruppe mit 1 bis 24 Kohlenstoffatomen bedeutet, R2 eine Alkylengruppe mit 2 bis 4 Kohlenstoffatomen bedeutet, m eine ganze Zahl von 1 bis 5 bedeutet und n eine ganze Zahl von 1 bis 6 bedeutet,
    1000 Teile je Million Teile (Masseanteil) oder weniger, bezogen auf das Gesamtgewicht der Zusammensetzung, beträgt, und
    worin wenigstens eine Art von Verbindungen in einer Menge von 1 bis 20 Massenprozent, bezogen auf das Gesamtgewicht der Zusammensetzung, enthalten sind und die Verbindungen ausgewählt sind aus einer Gruppe bestehend aus:
    (D) wenigstens einer Art von Salz von Lanolinfettsäure, ausgewählt aus einer Gruppe bestehend aus einem Alkalimetallsalz von Lanolinfettsäure, einem Erdalkalimetallsalz von Lanolinfettsäure und einem Aminsalz von Lanolinfettsäure, mit Ausnahme eines Bariumsalzes von Lanolinfettsäure.
  2. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin der Gehalt der Verbindung (D) 20 bis 500 Massenteile pro 100 Massenteile des Sulfonats beträgt.
  3. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin der Gehalt der Verbindung (D) 10 Massenprozent oder weniger, bezogen auf das Gesamtgewicht der Zusammensetzung, beträgt.
  4. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin die kinematische Viskosität bei 40 °C 7 bis 400 mm2/s beträgt.
  5. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin der Gehalt der Verbindung mit einer Kohlenstoffatomzahl von 14 oder weniger in dem Grundöl 20 Massenprozent oder weniger, bezogen auf das Gesamtgewicht der Zusammensetzung, beträgt.
  6. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin der Gehalt der aromatischen Komponente in dem Grundöl 50 Massenprozent oder weniger, bezogen auf das Gesamtgewicht der Zusammensetzung, beträgt.
  7. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin der Gehalt der Verbindung mit einer Kohlenstoffatomzahl von 10 oder weniger in dem Grundöl 20 Massenprozent oder weniger, bezogen auf das Gesamtgewicht der Zusammensetzung, beträgt.
  8. Rostverhindernde Ölzusammensetzung nach Anspruch 1, worin die Gesamtbasenzahl 1 bis 20 mgKOH/g beträgt und der Gehalt des Sulfonats und die Gesamtbasenzahl die durch die folgende Formel (2) wiedergegebene Bedingung erfüllen: TBN / C s ≦ 3
    Figure imgb0015
    worin Cs der Gehalt des Sulfonats in Massenprozent ist und TBN die Gesamtbasenzahl in mgKOH/g ist.
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EP1394289A4 (de) 2009-06-03
ATE557078T1 (de) 2012-05-15
WO2002083986A1 (fr) 2002-10-24
EP1394289A1 (de) 2004-03-03

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