EP3099767A1 - Korrosionsinhibitoren für kraft- und schmierstoffe - Google Patents

Korrosionsinhibitoren für kraft- und schmierstoffe

Info

Publication number
EP3099767A1
EP3099767A1 EP15702224.5A EP15702224A EP3099767A1 EP 3099767 A1 EP3099767 A1 EP 3099767A1 EP 15702224 A EP15702224 A EP 15702224A EP 3099767 A1 EP3099767 A1 EP 3099767A1
Authority
EP
European Patent Office
Prior art keywords
acid
polymers
groups
use according
fuels
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.)
Withdrawn
Application number
EP15702224.5A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jochen Mezger
Maxim Peretolchin
Aaron FLORES-FIGUEROA
Markus Hansch
Ludwig Völkel
Ivette Garcia Castro
Klaus MÜHLBACH
Harald Boehnke
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.)
BASF SE
Original Assignee
BASF SE
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
Priority claimed from PCT/EP2014/076622 external-priority patent/WO2015113681A1/de
Application filed by BASF SE filed Critical BASF SE
Publication of EP3099767A1 publication Critical patent/EP3099767A1/de
Withdrawn legal-status Critical Current

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    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/14—Monomers containing five or more carbon atoms
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    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
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    • C08F222/06—Maleic anhydride
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    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/236—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof
    • C10L1/2368—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof homo- or copolymers derived from unsaturated compounds containing heterocyclic compounds containing nitrogen in the ring
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2270/00—Specifically adapted fuels
    • C10L2270/02—Specifically adapted fuels for internal combustion engines
    • C10L2270/023—Specifically adapted fuels for internal combustion engines for gasoline engines
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2270/00—Specifically adapted fuels
    • C10L2270/02—Specifically adapted fuels for internal combustion engines
    • C10L2270/026—Specifically adapted fuels for internal combustion engines for diesel engines, e.g. automobiles, stationary, marine
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/086—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type polycarboxylic, e.g. maleic acid
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/022—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/026—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrile group
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/028—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/04—Detergent property or dispersant property
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/54—Fuel economy
    • 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
    • C10N2040/252—Diesel 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
    • C10N2040/252—Diesel engines
    • C10N2040/253—Small diesel 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
    • C10N2040/255—Gasoline 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
    • C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition

Definitions

  • the present invention relates to new uses of corrosion inhibitors in fuels and lubricants.
  • Corrosion inhibitors are common additives in fuels and lubricants, often based on acid-containing structures, e.g. Dimer fatty acids.
  • a disadvantage of these corrosion inhibitors is that they tend to precipitate, especially in the presence of calcium ions, and as a result their corrosion-inhibiting action is reduced.
  • the deposits formed by these precipitations may also affect the operation of engines, engine components or parts of the fuel system, in particular the injection system, especially the injection pumps or nozzles.
  • injection system is understood to mean the part of the fuel system in motor vehicles from the fuel pump through the injector outlet.
  • fuel system is understood to mean the components of motor vehicles that are in contact with the respective fuel, preferably the area from the tank up to and including the injector outlet.
  • the compounds of the invention against deposits not only act in the injection system, but also in the rest of the fuel system, in particular against deposits in fuel filters and pumps.
  • US 3382056 teaches the use of low molecular weight copolymers containing olefins and succinic acid and their derivatives in copolymerized form as anti-rust additives in refined fuel compositions.
  • JP 55-085679 teaches the use of hydrolytically opened copolymers of molecular weight Mw from 2,000 to 30,000 of ⁇ -olefins having from 20 to 60 carbon atoms and maleic anhydride as oil-soluble rust inhibitors in mineral oil or lubricants. It is known from US Pat. No. 5,080,686 and EP 299120 that alkyl- and alkeny succinic acids and their derivatives as well as copolymers containing olefins and succinic acid and their derivatives in copolymerized form act as corrosion inhibitors in oxygenated fuel systems. None of these documents shows that the corrosion inhibitors according to the invention have an increased compatibility with calcium ions.
  • the invention relates to the use of polymers, on a statistical average
  • corrosion inhibitors in fuels or lubricants preferably in fuels, more preferably in fuels having a content of alkali and / or alkaline earth metals and / or zinc of at least 0.1 ppm by weight.
  • the polymers according to the present invention may be homopolymers or copolymers, preferably copolymers.
  • the polymers can be obtained by any desired method, preferably by polyaddition or polycondensation, preferably by polyaddition.
  • the polyaddition can preferably be free-radical or ionic, preferably free-radical.
  • the polymers described have a particular advantage in fuels or lubricants, especially in fuels having a content of alkali and / or alkaline earth metals and / or zinc of at least 0.1 ppm by weight, particularly preferably at least 0.2 ppm by weight , very particularly preferably at least 0.3 ppm by weight and in particular at least 0.5 ppm by weight.
  • alkali metals and / or alkaline earth metals and / or zinc exhibit their corrosion-inhibiting action even in the presence of alkali metals and / or alkaline earth metals and / or zinc, preferably also in the presence of alkaline earth metals.
  • the content of alkali metals and / or alkaline earth metals in fuels is obtained, for example, by mixing with alkali and / or alkaline earth metal-containing lubricants, for example in the fuel pump.
  • alkali metals and / or alkaline earth metals may originate from unsatisfactorily or insufficiently desalted fuel additives, for example carrier oils.
  • a source of zinc for example, anti-wear additives.
  • alkali metals are sodium and potassium, in particular sodium.
  • alkaline earth metals are particularly magnesium and calcium, especially calcium.
  • zinc should be emphasized
  • the polymers described are still active in the presence of calcium and show no precipitations.
  • alkali and / or alkaline earth metals and / or zinc in each case relate to individual metal species.
  • the polymers for use according to the invention are regular, random or block polymers which are available on a statistical average
  • the polymers according to the invention preferably have a solubility in toluene at 20 ° C. of at least 0.5 g / 100 ml, particularly preferably at least 1 g / 100 ml, very particularly preferably at least 2 g / 100 ml, in particular of at least 3 g / 100 ml and especially of at least 5 g / 100 ml.
  • the polymers have more than four, preferably more than five, particularly preferably more than eight and very particularly preferably more than ten repeat units of the basic monomers, in the case of copolymers more than two repeat units of each parent monomer, preferably more as three, more preferably more than four and most preferably more than five.
  • the acid groups are, for example, carboxyl groups, sulfonic acid groups or phosphonic acid groups, preferably carboxyl groups.
  • the number of acid groups per polymer chain is on statistical average preferably at least 5, particularly preferably at least 6, very particularly preferably at least 7 and in particular at least 8 acid groups per polymer chain.
  • the upper limit of the number of acid groups per polymer chain is on statistical average preferably 50, more preferably 40, most preferably 30 and especially 26 acid groups per polymer chain.
  • the polymer may have further functional groups, for example oxygen-containing functional groups, preferably carbonate groups, ether groups or ester groups, or nitrogen-containing functional groups, preferably urea groups, urethane groups, amino groups or amide groups.
  • Oxygen-containing functional groups are understood as meaning those functional groups which contain no heteroatoms other than oxygen atoms.
  • Nitrogen-containing functional groups are understood as meaning those functional groups which contain no other heteroatoms than nitrogen atoms and optionally oxygen atoms.
  • the polymers preferably contain not more than 5, more preferably not more than 4, very preferably not more than 3, in particular not more than 2 and especially not more than one functional group other than oxygen-containing functional groups and nitrogen-containing functional groups per polymer chain ,
  • the polymers preferably contain not more than 5, more preferably not more than 4, very preferably not more than 3, in particular not more than 2 and especially not more than one other nitrogen-containing functional group per polymer chain than amino groups, urea or urethane or amide groups.
  • the polymers contain not more than 2, most preferably not more than 1 and in particular no amino groups per polymer chain.
  • the polymers contain not more than 10, more preferably not more than 8, in particular not more than 6 and especially not more than four urea, urethane or amide groups per polymer chain.
  • the polymers preferably contain not more than 4, more preferably not more than 3, very preferably not more than 2, in particular not more than 1 and especially no other oxygen-containing functional group per polymer chain as carbonate groups, ether groups or ester groups.
  • the number of carbonate, ether and / or ester groups per polymer chain, especially the ester groups per polymer chain is less relevant according to the invention, as long as the required ratio of carbon atoms per acid group is maintained at the same time.
  • the polymers contain not more than 20, more preferably not more than 15, most preferably not more than 10 and in particular not more than 5 ether groups per polymer chain. In a further preferred embodiment, the polymers contain not more than 50, more preferably not more than 40, most preferably not more than 30 and in particular not more than 26 carbonate or ester groups per polymer chain.
  • the polymers contain not more than 4, more preferably not more than 3, very preferably not more than 2, in particular not more than 1 and especially no carbonate and ester groups per polymer chain.
  • the ratio of carbon atoms in the polymer per acid group is defined as the total number of carbon atoms per polymer chain divided by the acid groups per polymer chain on a statistical average. Both quantities can be determined from the monomers used and the molecular weight determined by gel permeation chromatography (with tetrahydrofuran and polystyrene as standard) and from the monomers used in the polymerization.
  • the lower limit of the ratio of carbon atoms in the polymer per acid group is preferably at least 8, particularly preferably at least 9, very particularly preferably at least 10, in particular at least 1 and especially at least 12.
  • the upper limit of the ratio of carbon atoms in the polymer per acid group is preferably up to 33, particularly preferably up to 31, very particularly preferably up to 29, in particular up to 27 and especially up to 25.
  • the stated ratio of carbon atoms in the polymer per acid group on the one hand causes good solubility in fuels and on the other hand sufficient availability of carboxyl groups for the corrosion-inhibiting effect.
  • the polymers additionally have an acid number of from 80 to 320, preferably from 90 to 300, particularly preferably from 95 to 290 mg KOH / g, determined by potentiographic titration with 0.5 molar aqueous hydrochloric acid after three hours of heating in 0.5 molar ethanol - potash lye.
  • the polymer generally has a weight-average molecular weight Mw of from 0.5 to 20 kDa, preferably from 0.6 to 15, more preferably from 0.7 to 7, very particularly preferably from 1 to 7 and in particular from 1.5 to 5 kDa ( determined by gel permeation chromatography with tetrahydrofuran and polystyrene as standard).
  • the number average molecular weight Mn is usually from 0.5 to 10 kDa, preferably from 0.6 to 5, particularly preferably from 0.7 to 4, very particularly preferably from 0.8 to 3 and in particular from 1 to 2 kDa (determined by gel permeation chromatography with tetrahydrofuran and polystyrene as standard).
  • the polymers contain a high proportion of adjacent carboxylic acid groups as determined by an adjuvant measurement.
  • a sample of the polymer is tempered for 30 minutes at a temperature of 290 ° C between two Teflon films and recorded at a bubble-free FTIR spectrum. From the spectra obtained, the IR spectrum of Teflon is subtracted, determines the layer thickness and determines the content of cyclic anhydride.
  • the adjacency is at least 10%, preferably at least 15%, particularly preferably at least 20%, very particularly preferably at least 25% and in particular at least 30%.
  • the use according to the invention relates to the inhibition of the corrosion of iron, steel and / or non-ferrous metal surfaces.
  • non-ferrous metals copper and its alloys are preferred.
  • the corrosion of steel surfaces is inhibited.
  • the polymers described are added to fuels with the above-specified content of alkali metals and / or alkaline earth metals and / or zinc, generally in amounts of 1 to 60, preferably 10 to 40, ppm by weight. Frequently, the polymers described are used in the form of fuel additive mixtures, together with customary additives:
  • these are primarily conventional detergent additives, carrier oils, cold flow improvers, lubricity improvers, corrosion inhibitors other than the polymers described, demulsifiers, dehazers, defoamers, cetane improvers, combustion improvers, antioxidants or stabilizers, antistatics , Metallocenes, metal deactivators, dyes and / or solvents.
  • Another object of the invention is the use of polymers, on a statistical average
  • additive packages containing at least one additive selected from the group consisting of detergent additives, carrier oils, cold flow improvers, lubricity improvers, corrosion inhibitors other than the described polymers, demulsifiers, dehazers, antifoaming agents, cetane improvers, combustion improvers, antioxidants, stabilizers, Antistatic agents, metallocenes, metal deactivators, dyes and solvents, for the reduction of corrosion in diesel fuels, which have a content of alkali and / or alkaline earth metals and / or zinc of at least 0.1 ppm by weight.
  • additives selected from the group consisting of detergent additives, carrier oils, cold flow improvers, lubricity improvers, corrosion inhibitors other than the described polymers, demulsifiers, dehazers, antifoaming agents, cetane improvers, combustion improvers, antioxidants, stabilizers, Antistatic agents, metallocenes, metal deactivators, dyes and solvents, for the reduction of corrosion in diesel
  • Another object of the invention is the use of polymers, on a statistical average
  • additive packages containing at least one additive selected from the group consisting of friction modifiers, corrosion inhibitors other than the polymers described, demulsifiers, dehazers, antifoams, combustion improvers, antioxidants, stabilizers, antistatic agents, metallocenes, metal deactivators, dyes and solvents, to reduce corrosion in gasoline containing at least 0.1 ppm by weight of alkali and / or alkaline earth metals and / or zinc.
  • the usual detergent additives are preferably amphiphilic substances which have at least one hydrophobic hydrocarbon radical having a number-average molecular weight (M n ) of from 85 to 20 000 and at least one polar group selected from: (Da) mono- or polyamino groups having up to 6 nitrogen atoms, wherein at least one nitrogen atom has basic properties;
  • the hydrophobic hydrocarbon radical in the above detergent additives which provides sufficient solubility in the fuel has a number average molecular weight (M n ) of from 85 to 20,000, preferably from 1 13 to 10,000, more preferably from 300 to 5,000, more preferably from 300 up to 3,000, more preferably from 500 to 2,500 and especially from 700 to 2,500, especially from 800 to 1,500.
  • M n number average molecular weight
  • hydrophobic hydrocarbon radical in particular in combination with the polar, in particular polypropenyl, polybutenyl and polyisobutenyl radicals having a number average molecular weight M n of preferably in each case from 300 to 5,000, particularly preferably from 300 to 3,000, more preferably from 500 to 2,500, even more preferably from 700 to 2,500 and in particular from 800 to 1,500.
  • M n number average molecular weight of preferably in each case from 300 to 5,000, particularly preferably from 300 to 3,000, more preferably from 500 to 2,500, even more preferably from 700 to 2,500 and in particular from 800 to 1,500.
  • Da monoamino
  • additives are the compounds obtainable from polyisobutene epoxides by reaction with amines and subsequent dehydration and reduction of the amino alcohols, as described in particular in DE-A 196 20 262.
  • these reaction products are mixtures of pure nitropolyisobutenes (for example ⁇ , ⁇ -dinitropolyisobutene) and mixed hydroxynitropolyisobutenes (for example ⁇ -nitro- ⁇ -hydroxy polyisobutene).
  • Carboxyl groups or their alkali metal or alkaline earth metal salts (Dd) containing additives are preferably copolymers of C2 to C 4 o-olefins with maleic anhydride having a total molecular weight of 500 to 20,000, the carboxyl groups wholly or partly to the alkali metal or Alkaline earth metal salts and a residual group of the carboxyl groups are reacted with alcohols or amines.
  • Such additives are known in particular from EP-A 307 815.
  • Such additives are mainly used to prevent valve seat wear and can be used, as described in WO-A 87/01 126, with advantage in combination with conventional fuel detergents such as poly (iso) -butene amines or polyetheramines.
  • Additives containing sulfonic acid groups or their alkali metal or alkaline earth metal salts are preferably alkali metal or alkaline earth metal salts of a sulfosuccinic acid alkyl ester, as described in particular in EP-A 639 632.
  • Such additives are primarily for preventing valve seat wear and can be used to advantage in combination with conventional fuel detergents such as poly (iso) buteneamines or polyetheramines.
  • Polyoxy-C2-C4-alkylene (Df) containing additives are preferably polyether or polyetheramines which by reaction of C2 to C6o-alkanols, C6 to C30 alkanediols, mono- or D1-C2 to C3o-alkylamines, Cr to C3o-alkylcyclo-hexanols or C1- to C3o-alkylphenols with 1 to 30 mol of ethylene oxide and / or propylene oxide and / or butylene oxide per hydroxyl group or amino group and, in the case of polyetheramines, by subsequent reductive amination with ammonia, monoamines or polyamines are available.
  • Such products are described in particular in EP-A 310 875, EP-A 356 725, EP-A 700 985 and US-A 4,877,416.
  • polyethers such products also fulfill carrier oil properties. Typical examples thereof are tridecanol or isotridecanol butoxylates, isononylphenol butoxylates and also polyisobutenol butoxylates and propoxylates, and the corresponding reaction products with ammonia.
  • Carboxyl ester groups (Dg) -containing additives are preferably esters of mono-, di- or tricarboxylic acids with long-chain alkanols or polyols, especially those having a minimum viscosity of 2 mm 2 / s at 100 ° C, as described in particular in DE-A 38 38 918 are described.
  • mono-, di- or tricarboxylic acids it is possible to use aliphatic or aromatic acids, especially suitable ester alcohols or polyols are long-chain representatives of, for example, 6 to 24 carbon atoms.
  • esters are adipates, phthalates, isophthalates, terephthalates and trimellitates of iso-octanol, iso-nonanol, iso-decanol and of isotridecanol. Such products also meet carrier oil properties.
  • the groups having hydroxyl and / or amino and / or amido and / or imido groups are, for example, carboxylic acid groups, acid amides of monoamines, acid amides of di- or polyamines which, in addition to the amide function, also have free amine groups, Succinic acid derivatives having an acid and an amide function, carboximides with mono- amines, carboximides with di- or polyamines which, in addition to the imide function, still have free amine groups, or diimides which are formed by reacting di- or polyamines with two succinic acid derivatives.
  • Such fuel additives are generally known and described, for example, in documents (1) and (2).
  • reaction products of alkyl- or alkenyl-substituted succinic acids or derivatives thereof with amines and particularly preferably to the reaction products of polyisobutenyl-substituted succinic acids or derivatives thereof with amines.
  • reaction products with aliphatic polyamines polyalkyleneimines
  • ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine and hexaethyleneheptamine which have an imide structure.
  • Mannich reaction of substituted phenols with aldehydes and mono- or polyamines generated moieties containing (di) additives are preferably reaction products of polyisobutene-substituted phenols with formaldehyde and mono- or polyamines such as ethylenediamine, diethylenetriamine, triethylenetetramine, tetra-ethylenepentamine or dimethyl - aminopropylamine.
  • Such "polyisobutene-Mannich bases" are described in particular in EP-A 831 141.
  • One or more of said detergent additives may be added to the fuel in such an amount that the metering rate of these detergent additives is preferably from 25 to 2500 ppm by weight, in particular from 75 to 1500 ppm by weight, especially from 150 to 1000% by weight . ppm.
  • Co-used carrier oils may be mineral or synthetic.
  • Suitable mineral carrier oils are fractions obtained in petroleum processing, such as bright stock or base oils having viscosities such as from class SN 500 to 2000, but also aromatic hydrocarbons, paraffinic hydrocarbons and alkoxyalkanols. It is also useful as a "hydrocrack oil” known and obtained in the refining of mineral oil fraction (Vakuumdestillatites with a boiling range of about 360 to 500 ° C, available from high pressure catalytically hydrogenated and isomerized and dewaxed natural mineral oil). Also suitable are mixtures of the abovementioned mineral carrier oils.
  • suitable synthetic carrier oils are polyolefins (polyalphaolefins or polyternal olefins), (poly) esters, poly) alkoxylates, polyethers, aliphatic polyetheramines, alkylphenol-initiated polyethers, alkylphenol-initiated polyetheramines and carboxylic acid esters of long-chain alkanols.
  • suitable polyethers or polyetheramines are preferably compounds containing polyoxy-C 2 - to C 4 -alkylene groups which are prepared by reacting C 2 - to C 60 -alkanols, C 6 - to C 3 -alkanediols, mono- or C 1 - to C 20 -alkylamines, C 1 to C 30 -alkylcyclohexanols or C 1 to C 30 -alkylphenols with 1 to 30 mol of ethylene oxide and / or propylene oxide and / or butylene oxide per hydroxyl group or amino group and, in the case of polyetheramines, by subsequent reductive amination with ammonia, monoamines or polyamines are available.
  • P0IV-C2 to C6 alkylene oxide amines or functional derivatives thereof may be used as the polyether amines.
  • Typical examples thereof are tridecanol or isotridecanol butoxylates, isononylphenol butoxylates and also polyisobutenol butoxylates and propoxylates and the corresponding reaction products with ammonia.
  • carboxylic acid esters of long-chain alkanols are, in particular, esters of mono-, di- or tricarboxylic acids with long-chain alkanols or polyols, as described in particular in DE-A 38 38 918.
  • mono-, di- or tricarboxylic acids it is possible to use aliphatic or aromatic acids, especially suitable ester alcohols or polyols are long-chain representatives having, for example, 6 to 24 carbon atoms.
  • suitable representatives of the esters are adipates, phthalates, isophthalates, terephthalates and trimellitates of isooctanol, isononanol, isodecanol and of isotridecanol, eg.
  • B di- (n- or isotridecyl) phthalate.
  • suitable carrier oil systems are described, for example, in DE-A 38 26 608, DE-A 41 42 241, DE-A 43 09 074, EP-A 452 328 and EP-A 548 617.
  • particularly suitable synthetic carrier oils are alcohol-started polyethers having about 5 to 35, preferably about 5 to 30, particularly preferably 10 to 30 and in particular 15 to 30 C3 to C6 alkylene oxide units, for.
  • suitable starter alcohols are long-chain alkanols or long-chain alkyl-substituted phenols, where the long-chain alkyl radical is in particular a straight-chain or branched C 6 - to C 18 -alkyl radical.
  • Specific examples include tridecanol and nonylphenol.
  • Particularly preferred alcohol-started polyethers are the reaction products (polyetherification products) of monohydric C6- to Cis-aliphatic alcohols with C3- to C6-alkylene oxides.
  • monohydric aliphatic C6-C18-alcohols are hexanol, heptanol, octanol, 2-ethyl-hexanol, nonyl alcohol, decanol, 3-propylheptanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, octadecanol and their constitution and position isomers.
  • the alcohols can be used both in the form of pure isomers and in the form of technical mixtures.
  • a particularly preferred alcohol is tridecanol.
  • C3 to C6 alkylene oxides are propylene oxide, such as 1, 2-propylene oxide, butylene oxide, such as 1, 2-butylene oxide, 2,3-butylene oxide, isobutylene oxide or tetrahydrofuran, pentylene oxide and hexylene oxide.
  • Particularly preferred are C3 to C4 alkylene oxides, ie propylene oxide, such as 1,2-propylene oxide and butylene oxide, such as 1,2-butylene oxide, 2,3-butylene oxide and isobutylene oxide.
  • butylene oxide is used.
  • suitable synthetic carrier oils are alkoxylated alkylphenols, as described in DE-A 10 102 913.
  • Particular carrier oils are synthetic carrier oils, the alcohol-started polyethers described above being particularly preferred.
  • the carrier oil or the mixture of different carrier oils is added to the fuel in an amount of preferably from 1 to 1000 ppm by weight, more preferably from 10 to 500 ppm by weight and in particular from 20 to 100 ppm by weight.
  • Suitable cold flow improvers are in principle all organic compounds which are able to improve the flow behavior of middle distillate fuels or diesel fuels in the cold. Conveniently, they must have sufficient oil solubility.
  • middle distillates of fossil origin ie for conventional mineral diesel fuels
  • used cold flow improvers (“middle distillate flow improvers", "MDFI") come into consideration.
  • MDFI middle distillate flow improvers
  • WASA wax anti-settling additive
  • the cold flow improver is selected from:
  • Suitable C 2 - to C 4 -olefin monomers for the copolymers of class (K1) are, for example, those having 2 to 20, in particular 2 to 10 carbon atoms and having 1 to 3, preferably 1 or 2, in particular a carbon-carbon double pelitati. In the latter case, the carbon-carbon double bond can be arranged both terminally ( ⁇ -olefins) and internally.
  • ⁇ -olefins particularly preferably olefins having 2 to 6 carbon atoms, for example propene, 1-butene, 1-pentene, 1-hexene and, above all, ethylene.
  • the at least one further ethylenically unsaturated monomer is preferably selected from carboxylic alkenyl esters, (meth) acrylic esters and further olefins.
  • further olefins are polymerized in, these are preferably higher molecular weight than the abovementioned C 2 - to C 4 -olefin base monomers. If, for example, ethylene or propene is used as the olefin base monomer, suitable further olefins are, in particular, C 10 - to C 40 -alpha-olefins. Other olefins are polymerized in most cases only when monomers with carboxylic acid ester functions are used.
  • Suitable (meth) acrylic acid esters are, for example, esters of (meth) acrylic acid with C 2 to C 20 alkanols, in particular C 1 to C 10 alkanols, especially with methanol, ethanol, propanol, isopropanol, n-butanol, sec-butanol, isobutanol, tert Butanol, pentanol, hexanol, heptanol, octanol, 2-ethylhexanol, nonanol and decanol and structural isomers thereof.
  • Suitable carboxylic alkenyl esters are, for example, C2 to C-u-alkenyl esters, e.g. the vinyl and propenyl esters of carboxylic acids having from 2 to 21 carbon atoms, the hydrocarbon radical of which may be linear or branched. Preferred among these are the vinyl esters.
  • carboxylic acids having a branched hydrocarbon radical preferred are those whose branch is in the ⁇ -position to the carboxyl group, the ⁇ -carbon atom being particularly preferably tertiary, ie. H. the carboxylic acid is a so-called neocarboxylic acid.
  • the hydrocarbon radical of the carboxylic acid is linear.
  • alkenyl carboxylic acid esters examples include vinyl acetate, vinyl propionate, vinyl butyrate, vinyl 2-ethylhexanoate, vinyl neopentanoate, vinyl hexanoate, vinyl neononanoate, vinyl neodecanoate and the corresponding propenyl esters, the vinyl esters being preferred.
  • a particularly preferred carboxylic acid alkenyl ester is vinyl acetate; typical resulting copolymers of group (K1) are the most commonly used ethylene-vinyl acetate copolymers ("EVA").
  • Suitable copolymers of the class (K1) are also those which contain two or more different carboxylic acid alkenyl esters in copolymerized form, these being in the Alken- nylfunktion and / or in the carboxylic acid group differ. Also suitable are copolymers which, in addition to the carboxylic acid alkenyl ester (s), comprise at least one olefin and / or at least one (meth) acrylic acid ester in copolymerized form.
  • Terpolymers of a C2 to C4o- ⁇ -olefin, a C to C2o-alkyl ester of an ethylenically unsaturated monocarboxylic acid having 3 to 15 carbon atoms and a C2 to C14 alkenyl ester of a saturated monocarboxylic acid having 2 to 21 carbon atoms are also known as copolymers.
  • polymers of class (K1) are suitable.
  • Such terpolymers are described in WO 2005/054314.
  • a typical such terpolymer is composed of ethylene, 2-ethylhexyl acrylate and vinyl acetate.
  • the at least one or the other ethylenically unsaturated monomers are present in the copolymers of class (K1) in an amount of preferably from 1 to 50% by weight, in particular from 10 to 45% by weight and especially from 20 to 40% by weight. %, based on the total copolymer, copolymerized.
  • the majority by weight of the monomer units in the copolymers of class (K1) thus usually comes from the C2 to C4o-based olefins.
  • the copolymers of class (K1) preferably have a number average molecular weight M n of from 1000 to 20,000, particularly preferably from 1000 to 10,000 and in particular from 1000 to 8000.
  • Typical comb polymers of component (K2) are, for example, by the copolymerization of maleic anhydride or fumaric acid with another ethylenically unsaturated monomer, for example with an ⁇ -olefin or an unsaturated ester such as vinyl acetate, and subsequent esterification of the anhydride or acid function with an alcohol having at least 10 carbon atoms available.
  • Other suitable comb polymers are copolymers of olefins and esterified comonomers, for example esterified copolymers of styrene and maleic anhydride or esterified copolymers of styrene and fumaric acid.
  • Suitable comb polymers may also be polyfumarates or polymaleinates.
  • homopolymers and copolymers of vinyl ethers are suitable comb polymers.
  • Comb polymers suitable as component of class (K2) are, for example, those described in WO 2004/035715 and in "Comb-Like Polymers, Structure and Properties", N.A. Plate and V.P. Shibaev, J. Poly. Be. Macromolecular Revs. 8, pages 1 17 to 253 (1974). "Mixtures of comb polymers are also suitable.
  • Polyoxyalkylenes suitable as a component of class (K3) are, for example, polyalkylene esters, polyoxyalkylene ethers, mixed polyoxyalkylene ester ethers and mixtures thereof. These polyoxyalkylene compounds preferably contain at least one, preferably at least two, linear alkyl groups each having from 10 to 30 carbon atoms and a polyoxyalkylene group having a number average molecular weight of up to 5,000. Such polyoxyalkylene compounds are described, for example, in EP-A 061 895 and in US Pat. No. 4,491,455 described. Particular polyoxyalkylene compounds are based on polyethylene glycols and Polypropylene glycols having a number average molecular weight of 100 to 5000.
  • Polar nitrogen compounds suitable as a component of class (K4) may be of both ionic and nonionic nature, and preferably have at least one, especially at least two, tertiary nitrogen substituent of the general formula> NR 7 , wherein R 7 is Cs to C 40 Hydrocarbon residue stands.
  • the nitrogen substituents may also be quaternized, ie in cationic form.
  • nitrogen compounds are ammonium salts and / or amides obtainable by reacting at least one amine substituted with at least one hydrocarbon radical with a carboxylic acid having 1 to 4 carboxyl groups or with a suitable derivative thereof.
  • the amines contain at least one linear Cs to C4o-alkyl radical.
  • suitable primary amines for the preparation of said polar nitrogen compounds are octylamine, nonylamine, decylamine, undecylamine, dodecylamine, tetradecylamine and the higher linear homologues
  • suitable secondary amines for this purpose are, for example, dioctadecylamine and methylbehenylamine.
  • amine mixtures in particular industrially available amine mixtures such as fatty amines or hydrogenated tallamines, as described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, 6th edition, in the chapter "Amines, aliphatic".
  • Suitable acids for the reaction are, for example, cyclohexane-1,2-dicarboxylic acid, cyclohexene-1,2-dicarboxylic acid, cyclopentane-1,2-dicarboxylic acid, naphthalenedicarboxylic acid, phthalic acid, isophthalic acid, terephthalic acid and succinic acids substituted by long-chain hydrocarbon radicals.
  • the component of class (K4) is an oil-soluble reaction product of at least one tertiary amino group-containing poly (C 2 - to C 20 -carboxylic acids) with primary or secondary amines.
  • the poly (C 2 - to C 20 -carboxylic acids) which have at least one tertiary amino group and are based on this reaction product preferably contain at least 3 carboxyl groups, in particular 3 to 12, especially 3 to 5, carboxyl groups.
  • the carboxylic acid units in the polycarboxylic acids preferably have 2 to 10 carbon atoms, in particular they are acetic acid units.
  • the carboxylic acid units are suitably linked to the polycarboxylic acids, usually via one or more carbon and / or nitrogen atoms. Preferably, they are attached to tertiary nitrogen atoms, which are connected in the case of several nitrogen atoms via hydrocarbon chains.
  • the component of the class (K4) is preferably an oil-soluble reaction product based on poly (C 2 - to C 20 -carboxylic acids) having the general formula IIa or IIb and having at least one tertiary amino group HOOC.
  • DD OOH poly (C 2 - to C 20 -carboxylic acids) having the general formula IIa or IIb and having at least one tertiary amino group HOOC.
  • variable A is a straight-chain or branched C 2 - to C 6 -alkylene group or the grouping of the formula III
  • CH 2 -CH 2 - and the variable B denotes a C to Cig-alkylene group.
  • the compounds of the general formula IIa and IIb have in particular the properties of a WASA.
  • the preferred oil-soluble reaction product of component (K4) in particular that of general formula IIa or IIb, is an amide, an amide ammonium salt or an ammonium salt in which no, one or more carboxylic acid groups are converted into amide groups.
  • Straight-chain or branched C 2 - to C 6 -alkylene groups of the variable A are, for example, 1, 1-ethylene, 1, 2-propylene, 1, 3-propylene, 1, 2-butylene, 1, 3-butylene, 1, 4-butylene ethylene, 2-methyl-1,3-propylene, 1,5-pentylene, 2-methyl-1,4-butylene, 2,2-dimethyl-1,3-propylene, 1,6-hexylene (hexa-1-propylene), methylene) and in particular 1, 2-ethylene.
  • the variable A comprises 2 to 4, in particular 2 or 3 carbon atoms.
  • Cr to Ci9-alkylene groups of the variable B are, for example, 1, 2-ethylene, 1, 3-propylene, 1, 4-butylene, hexamethylene, octamethylene, decamethylene, dodecamethylene, Tetradecamethyl- en, hexadecamethylene, octadecamethylene, Nonadecamethylen and especially methylene.
  • the variable B comprises 1 to 10, in particular 1 to 4, carbon atoms.
  • the primary and secondary amines as reaction partners for the polycarboxylic acids to form the component (K4) are usually monoamines, in particular aliphatic monoamines. These primary and secondary amines may be selected from a variety of amines bearing hydrocarbon radicals, optionally linked together.
  • amines which are the oil-soluble reaction products of component (K4) are secondary amines and have the general formula HN (R 8 ) 2 in which the two variables R 8 independently of one another each represent straight-chain or branched C 10 - to C 30 - Alkyl radicals, in particular Cu- to C24-alkyl radicals mean.
  • These longer-chain alkyl radicals are preferably straight-chain or only slightly branched.
  • the abovementioned secondary amines are derived, with regard to their longer-chain alkyl radicals, from naturally occurring fatty acids or from their derivatives.
  • the two radicals R 8 are the same.
  • the abovementioned secondary amines can be bound to the polycarboxylic acids by means of amide structures or in the form of the ammonium salts, and only one part can be present as amide structures and another part as ammonium salts. Preferably, only a few or no free acid groups are present. Preferably, the oil-soluble reaction products of component (K4) are completely in the form of the amide structures.
  • Typical examples of such components (K4) are reaction products of nitrilotriacetic acid, ethylenediaminetetraacetic acid or propylene-1,2-diaminetetraacetic acid with in each case 0.5 to 1.5 mol per carboxyl group, in particular 0.8 to 1.2 mol per carboxyl group, dioleylamine, dipalmitinamine, dicoco fatty amine, distearylamine, dibehenylamine or especially ditallow fatty amine.
  • a particularly preferred component (K4) is the reaction product of 1 mole of ethylenediaminetetraacetic acid and 4 moles of hydrogenated ditallow fatty amine.
  • component (K4) are the N, N-dialkylammonium salts of 2-N ', N'-dialkylamidobenzoates, for example the reaction product of 1 mol of phthalic anhydride and 2 mol of ditallow fatty amine, the latter hydrogenated or unhydrogenated may be, and the reaction product of 1 mole of a Alkenylspirobislactons with 2 moles of a dialkylamine, for example Ditalgfettamin and / or tallow fatty amine, the latter two may be hydrogenated or not hydrogenated, called.
  • component of the class (K4) are cyclic compounds having tertiary amino groups or condensates of long-chain primary or secondary amines with carboxylic acid-containing polymers, as described in WO 93/181 15.
  • Sulfocarboxylic acids, sulfonic acids or their derivatives which are suitable as cold flow improvers of the component of class (K5) are, for example, the oil-soluble carboxamides and carboxylic acid esters of ortho-sulfobenzoic acid in which the sulfonic acid function is present as sulfonate with alkyl-substituted ammonium cations, as described in EP-A 261 957 to be discribed.
  • suitable poly (meth) acrylic acid esters are both homo- and copolymers of acrylic and methacrylic acid esters.
  • Preferred are copolymers of at least two mutually different (meth) acrylic acid esters, which differ with respect to the fused alcohol.
  • the copolymer contains a further, different of which olefinically unsaturated monomer copolymerized.
  • the weight-average molecular weight of the polymer is preferably 50,000 to 500,000.
  • a particularly preferred polymer is a copolymer of methacrylic acid and methacrylic acid esters of saturated Cu and Cis alcohols, wherein the acid groups are neutralized with hydrogenated talla- min.
  • Suitable poly (meth) acrylic esters are described, for example, in WO 00/44857.
  • the middle distillate fuel or diesel fuel is the cold flow improver or the mixture of various cold flow improvers in a total amount of preferably 10 to 5000 ppm by weight, more preferably from 20 to 2000 ppm by weight, more preferably from 50 to 1000 ppm by weight and in particular from 100 to 700 ppm by weight, for example from 200 to 500 ppm by weight.
  • Suitable lubricity improvers are usually based on fatty acids or fatty acid esters. Typical examples are tall oil fatty acid, as described for example in WO 98/004656, and glycerol monooleate.
  • the reaction products of natural or synthetic oils, for example triglycerides, and alkanolamines described in US Pat. No. 6,743,266 B2 are also suitable as such lubricity improvers.
  • Suitable corrosion inhibitors are e.g. Succinic esters, especially with polyols, fatty acid derivatives, e.g. Oleic acid esters, oligomerized fatty acids, substituted ethanolamines and products sold under the trade name RC 4801 (Rhein Chemie Mannheim, Germany), Irgora® L12 (BASF SE) or HiTEC 536 (Ethyl Corporation).
  • Succinic esters especially with polyols, fatty acid derivatives, e.g. Oleic acid esters, oligomerized fatty acids, substituted ethanolamines and products sold under the trade name RC 4801 (Rhein Chemie Mannheim, Germany), Irgora® L12 (BASF SE) or HiTEC 536 (Ethyl Corporation).
  • Demulsifiers Suitable demulsifiers are e.g. the alkali or alkaline earth salts of alkyl-substituted phenol and naphthalene sulfonates and the alkali or alkaline earth salts of fatty acids, as well as neutral compounds such as alcohol alkoxylates, e.g. Alcohol ethoxylates, phenol alkoxylates, e.g. tert-butylphenolethoxylate or tert-pentylphenolethoxylate, fatty acids, alkylphenols, condensation products of ethylene oxide (EO) and propylene oxide (PO), e.g. also in the form of EO / PO block copolymers, polyethyleneimines or polysiloxanes.
  • EO ethylene oxide
  • PO propylene oxide
  • Suitable dehazers are, for example, alkoxylated phenol-formaldehyde condensates, such as, for example, the products NALCO 7D07 (Nalco) and TOLAD 2683 (Petrolite) available under the trade name. B8) antifoam
  • Suitable antifoams are e.g. Polyether-modified polysiloxanes such as the TEGOPREN 5851 (Goldschmidt), Q 25907 (Dow Corning) and RHODOSIL (Rhone Poulenc) products available under the tradename.
  • Polyether-modified polysiloxanes such as the TEGOPREN 5851 (Goldschmidt), Q 25907 (Dow Corning) and RHODOSIL (Rhone Poulenc) products available under the tradename.
  • Suitable cetane number improvers are e.g. aliphatic nitrates such as 2-ethylhexyl nitrate and cyclohexyl nitrate, and peroxides such as di-tert-butyl peroxide.
  • Suitable antioxidants are e.g. substituted phenols such as 2,6-di-tert-butylphenol and 6-di-tert-butyl-3-methylphenol and phenylenediamines such as N, N'-di-sec-butyl-p-phenylenediamine.
  • Suitable metal deactivators are e.g. Salicylic acid derivatives such as N, N'-disalicylidene-1,2-propanediamine.
  • Suitable ones are e.g. nonpolar organic solvents such as aromatic and aliphatic hydrocarbons, for example, toluene, xylenes, "white spirit” and products marketed under the trade name SHELLSOL (Royal Dutch / Shell Group) and EXXSOL (ExxonMobil), as well as polar organic solvents.
  • nonpolar organic solvents such as aromatic and aliphatic hydrocarbons, for example, toluene, xylenes, "white spirit” and products marketed under the trade name SHELLSOL (Royal Dutch / Shell Group) and EXXSOL (ExxonMobil), as well as polar organic solvents.
  • alcohols such as 2-ethylhexanol, decanol and isotridecanol.
  • solvents usually arrive together with the aforementioned additives and co-additives which they are intended to dissolve or dilute for better handling into the diesel fuel.
  • the use according to the invention relates in principle to any fuels, preferably diesel and gasoline fuels.
  • Middle distillate fuels such as diesel fuels or fuel oils
  • mineral middle distillate fuels or diesel fuels obtainable by refining, those which are obtained by coal gasification or gas liquefaction [GTL] or by biomass liquefaction [BTL], Fuels] are available, suitable. Also suitable are mixtures of the abovementioned middle distillate fuels or diesel fuels with regenerative fuels, such as biodiesel or bioethanol.
  • middle distillate fuels of fossil, vegetable or animal origin which are essentially hydrocarbon mixtures
  • biofuel oils biodiesel
  • Such mixtures are encompassed by the term "middle distillate fuel”. They are commercially available and usually contain the biofuel oils in minor amounts, typically in amounts of 1 to 30 wt .-%, in particular from 3 to 10 wt .-%, based on the total amount of middle distillate of fossil, vegetable or animal origin and biofuel.
  • Biofuel oils are generally based on fatty acid esters, preferably substantially on alkyl esters of fatty acids derived from vegetable and / or animal oils and / or fats.
  • Alkyl esters are usually lower alkyl esters, especially C 1 to C 4 alkyl esters, understood by transesterification of occurring in vegetable and / or animal oils and / or fats glycerides, especially triglycerides, by means of lower alcohols, for example ethanol or especially methanol (“FAME ”) are available.
  • Typical lower alkyl esters based on vegetable and / or animal oils and / or fats which are used as biofuel oil or components thereof include, for example, sunflower methyl ester, palm oil methyl ester (“PME”), soybean oil methyl ester ("SME”) and especially rapeseed oil methyl ester ("RME ").
  • the middle distillate fuels or diesel fuels are particularly preferably those with a low sulfur content, ie with a sulfur content of less than 0.05% by weight, preferably less than 0.02% by weight, in particular less as 0.005 wt .-% and especially less than 0.001 wt .-% sulfur.
  • gasoline fuels are all commercially available gasoline fuel compositions into consideration.
  • a typical representative here is the market-standard basic fuel of Eurosuper according to EN 228.
  • gasoline compositions of the specification according to WO 00/47698 are also possible fields of use for the present invention.
  • the weight average Mw and number average molecular weight Mn of the polymers were measured by gel permeation chromatography (GPC). GPC separation was carried out using two PLge Mixed B columns (Agilent) in tetrahydrofuran at 35 ° C. The calibration was carried out by means of a narrowly distributed polystyrene standard (PSS, Germany) with molecular weight 162-50400 Da. Hexylbenzene was used as a low molecular weight marker.
  • the COD glass is fitted with an air cooler and placed in the agitator thermostat preheated to 95 ° C. After three (3) hours, the COD glass is removed from the heating block, rinsed with 30 ml of ethanol, and the solution is titrated potentiographically with 0.5 molar aqueous hydrochloric acid (HCl).
  • the olefin or the mixture of olefins with or without solvent was initially charged in a reactor with an anchor stirrer. The mixture was heated under nitrogen flow with stirring to the indicated temperature. To this was added the specified radical initiator (optionally diluted in the same solvent) and molten maleic anhydride (1 equivalent based on olefin monomer). The reaction mixture was stirred at the same temperature for the specified reaction time and then cooled. Water was then added (0.9 equivalents unless otherwise indicated) on maleic anhydride) and stirred either at 95 ° C, 10-14 h or under pressure at 110 ° C for 3 h.
  • the copolymer had a ratio of carbon atoms per acid group of 13, the acid value determined by the above procedure was 210.8 mg KOH / g.
  • the copolymer had a ratio of carbon atoms per acid group of 13, the acid value determined by the above procedure was 210.8 mg KOH / g.
  • the copolymer had a ratio of carbon atoms per acid group of 13, the acid value determined by the above procedure was 210.8 mg KOH / g.
  • Formulation 1 1 dimer fatty acid 2 B + d
  • the test was carried out in accordance with standard ASTM D665 A (modified) with distilled water and ASTM D665 B (modified) with artificial seawater mixed with EN590 B7 basic diesel fuel, without performance additives. The modifications were that the temperature was 60 ° C and the duration of the test was 4 hours.
  • the dodecenylsuccinic acid-containing additive package exhibited phase separation upon storage at room temperature, indicating that dodecenylsuccinic acid has insufficient solubility in the additive package.
  • Copper coupons (measure 49 x 25 x 1, 5 mm, punched in the middle) were carefully sanded with the grinding machine with the appropriate brush without firm pressure on both sides and on all edges. The sanded coupons were rubbed well with a clean cloth with xylene and acetone several times, using rubber gloves.
  • a 250 ml glass bottle with screw cap 200 ml of fuel were filled. The coupon was attached with a thread and installed hanging in the fuel glass. The thread was clamped in the screw thread for fixation. Storage took place at room temperature (23 ° C). At the end of the first storage period (7 days), a sample was taken (20-30 ml), the glass bottle was closed again and the metal content was determined by means of atomic absorption spectroscopy. Storage was continued. After multiple removal and lowering of the liquid level care was taken that the copper coupon is completely covered by fuel.
  • Non-ferrous metals were tested with zinc and copper wires.
  • Each 80 ml of Aral B7 EN590 fuel was filled into four bottles, two of which were mixed with 140 ppm of a sample of Synthesis Example 1.
  • a bottle with or without this sample degreased copper wire of a length of 20 cm and a diameter of 1 mm was placed.
  • a bottle with or without this sample degreased zinc wire of a length of 20 cm and a diameter of 1 mm was placed.
  • the copper or zinc content of the original fuel and after storage for 6 weeks at 40 ° C was determined by atomic emission spectroscopy (ICP / OES).
  • the compounds according to the invention have a corrosion-inhibiting effect on non-ferrous metals, in particular on copper.
  • an IVD value of 1 16 mg / valve was obtained for the unadditized fuel and, in the keep-clean mode for the additized fuel without a corrosion inhibitor, an IVD value of 2 mgA / dil, for the additized fuel with corrosion inhibitor (formulation 10), however, an IVD value of 1 mg / valve.
  • a commercially available direct injection spark ignition (DISI) engine (1.6 liter cylinder capacity) was operated with MIRO E10 petrol (7% by volume of oxygen-containing components) for 50 hours at 4000 rpm.
  • the fuel contained no additives.
  • the FR value fluctuated between 0 and -1.
  • the fuel contained 520 mg / kg formulation 10.
  • the FR value fluctuated between -2 and -3.
  • FR is a parameter generated by the engine controller according to the fuel injection into the combustion chamber. The formation of deposits is indicated by increasing FR value during a run. The more it grows, the more deposits have formed. If the FR value remains constant or decreases, the injector nozzle will remain clean. In both runs, the FR value does not increase, indicating that the claimed copolymer has no negative impact on injector cleanliness.

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  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Lubricants (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Fuel-Injection Apparatus (AREA)
EP15702224.5A 2014-01-29 2015-01-29 Korrosionsinhibitoren für kraft- und schmierstoffe Withdrawn EP3099767A1 (de)

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Application Number Priority Date Filing Date Title
EP14152991 2014-01-29
PCT/EP2014/076622 WO2015113681A1 (de) 2014-01-29 2014-12-04 Polycarbonsäure-basierte additive für kraft und schmierstoffe
EP14198266 2014-12-16
PCT/EP2015/051825 WO2015114053A1 (de) 2014-01-29 2015-01-29 Korrosionsinhibitoren für kraft- und schmierstoffe

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EP15703038.8A Withdrawn EP3099769A1 (de) 2014-01-29 2015-01-29 Polymere als additive für kraft und schmierstoffe
EP15703029.7A Active EP3099768B1 (de) 2014-01-29 2015-01-29 Korrosionsinhibitoren für kraftstoffe
EP15702224.5A Withdrawn EP3099767A1 (de) 2014-01-29 2015-01-29 Korrosionsinhibitoren für kraft- und schmierstoffe

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US (3) US10377958B2 (zh)
EP (3) EP3099769A1 (zh)
KR (3) KR102378650B1 (zh)
CN (3) CN106459811B (zh)
AU (2) AU2015212878B2 (zh)
BR (2) BR112016017414A2 (zh)
CA (2) CA2938218A1 (zh)
ES (1) ES2756578T3 (zh)
PL (1) PL3099768T3 (zh)
RU (3) RU2684323C2 (zh)
SG (2) SG11201605508UA (zh)
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US20170037336A1 (en) 2017-02-09
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AU2015212854A1 (en) 2016-08-18
EP3099769A1 (de) 2016-12-07
US10377958B2 (en) 2019-08-13
ES2756578T3 (es) 2020-04-27
RU2016134920A (ru) 2018-03-05
CN106459811A (zh) 2017-02-22
AU2015212878B2 (en) 2018-03-29
KR20160114159A (ko) 2016-10-04
CN106133120B (zh) 2019-12-13
CN106459811B (zh) 2020-02-18
WO2015114053A1 (de) 2015-08-06
BR112016017418A2 (pt) 2017-08-08
RU2016134922A3 (zh) 2018-09-25
BR112016017414A2 (pt) 2017-08-08
KR20160114161A (ko) 2016-10-04
RU2016134921A (ru) 2018-03-05
US10240100B2 (en) 2019-03-26
US20170183590A1 (en) 2017-06-29
RU2016134922A (ru) 2018-03-05
CN106062154B (zh) 2019-12-13
KR102378650B1 (ko) 2022-03-24
RU2016134921A3 (zh) 2018-09-24
RU2016134920A3 (zh) 2018-09-24
RU2689799C2 (ru) 2019-05-29
EP3099768A1 (de) 2016-12-07
KR20160114145A (ko) 2016-10-04
AU2015212878A1 (en) 2016-08-25
CA2938220A1 (en) 2015-08-06
RU2685271C2 (ru) 2019-04-17
CN106062154A (zh) 2016-10-26
CA2938218A1 (en) 2015-08-06
RU2684323C2 (ru) 2019-04-08
ZA201605889B (en) 2017-11-29
SG11201605508UA (en) 2016-08-30
EP3099768B1 (de) 2019-08-21
WO2015114051A1 (de) 2015-08-06
US20170066986A1 (en) 2017-03-09
WO2015114029A1 (de) 2015-08-06
CN106133120A (zh) 2016-11-16
US10150927B2 (en) 2018-12-11
SG11201606143VA (en) 2016-08-30
BR112016017418A8 (pt) 2020-06-16

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