EP0704519B1 - Als Kraft- und Schmierstoffadditiv geeignete Mischung aus Aminen, Kohlenwasserstoffpolymeren und Trägerölen - Google Patents

Als Kraft- und Schmierstoffadditiv geeignete Mischung aus Aminen, Kohlenwasserstoffpolymeren und Trägerölen Download PDF

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Publication number
EP0704519B1
EP0704519B1 EP95114693A EP95114693A EP0704519B1 EP 0704519 B1 EP0704519 B1 EP 0704519B1 EP 95114693 A EP95114693 A EP 95114693A EP 95114693 A EP95114693 A EP 95114693A EP 0704519 B1 EP0704519 B1 EP 0704519B1
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Prior art keywords
mixture
component
fuel
additive
weight
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EP95114693A
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English (en)
French (fr)
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EP0704519A1 (de
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Jürgen Dr. Thomas
Harald Dr. Schwahn
Peter Dr. Schreyer
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BASF SE
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BASF SE
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    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
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    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2215/226—Morpholines
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    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/26—Amines
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    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/30—Heterocyclic compounds
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    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
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    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • the invention further relates to the use of the mixture as Fuel and lubricant additives and fuels for gasoline engines and lubricant compositions which the blend in effective Amounts included.
  • Carburetor and intake system of gasoline engines but also injection systems for fuel metering in petrol and diesel engines are increasingly contaminated by impurities that through dust particles from the air, unburned hydrocarbon residues out of the combustion chamber and into the carburetor Vent gases are caused from the crankcase.
  • the residues adsorb fuel and shift the air-fuel ratio at idle and in the lower part-load range, so that the mixture fatter, the combustion incomplete and again the proportions of unburned or partially burned hydrocarbons increase in exhaust gas and gasoline consumption increases.
  • the document (1) further teaches that in fuel additives about 50% by weight of the active substance, i.e. the polyisobutylamine, can be replaced by polyisobutene without loss of effectiveness can; such a replacement is primarily for cost reasons. To improve the effectiveness of certain amounts of polyisobutene no indication is given.
  • carrier oils Another important additive component for fuels are so-called carrier oils. These carrier oils are usually high-boiling, thermostable liquids.
  • EP-B 356 726 (2) discloses esters of aromatic polycarboxylic acids with long-chain alcohols as carrier oils.
  • EP-A 374 461 (3) describes combinations of polyethers based on propylene oxide and / or butylene oxide with a molecular weight of at least 500 with esters of mono- or polycarboxylic acids and alkanols of the polyols, these esters having a minimum viscosity of 2 mm 2 / s at 100 ° C, described, which increase the efficiency of the detergent via synergistic mechanisms of action.
  • US Pat. No. 5,006,130 (4) discloses mixtures of aliphatic alkylene polyamines with at least one oil-soluble synthetic or mineral carrier oil.
  • WO-A 91/03529 (5) teaches the combination of detergents which carry certain amino groups, with polyether alcohols as carrier oils. This combination is particularly less than its individual components to increase the octane requirement (ORI, Octane Requirement Increase) caused by deposits of fuel or the additives originate from engine parts. A new engine only reaches its final octane requirement after a considerable period of time, which can then be considerably higher than at the beginning. In general, additives should at least not increase this effect.
  • the object of the present invention was therefore to force and Lubricant additives with improved effectiveness as detergents to provide.
  • the mixture defined at the outset was found, which characterized in that a component oil mixture as component C. from (b) polyethers based on propylene oxide and / or butylene oxide and (d) esters of mono- or polycarboxylic acids and alkanols or polyols is used.
  • Component A is primarily used as a detergent in fuels effective. As component A such amines come into question, which one Hydrocarbon residue with an average molecular weight of 500 to 10,000, preferably from 600 to 2500 and particularly preferred from 700 to 1500.
  • the hydrocarbon residue is usually branched.
  • such a residue is obtainable by polymerizing olefins.
  • olefins are preferably C 2 -C 6 -olefins, such as ethylene, propylene, 1-butene, 1-pentene, but particularly preferably isobutene. Both homopolymers and copolymers are possible, for example polymers of 70 to 100% by weight of isobutene and 0 to 30% by weight of 1-butene. Due to their manufacturing process, these polyolefins generally consist of a mixture of compounds of different molecular weights.
  • these polyolefins after chlorination be implemented with amines.
  • hydroformylation is preferred of the polyolefin and amination of the resultant Aldehyde and alcohol mixture under hydrogenating conditions, such as described for example in (1), since this route to chlorine-free Products.
  • the amine group of detergent A conducts of known amines such as ammonia, primary amines such as methylamine, ethylamine, butylamine, hexylamine, octylamine, secondary amines such as dimethylamine, diethylamine, dibutylamine, Dioctylamine or heterocycles such as piperazine, pyrrolidine, Morpholine, optionally further inert substituents can wear from. Ammonia is particularly preferred.
  • a very particularly preferred embodiment for the component A is a medium molecular weight polyisobutylamine from 700 to 1500, with up to 20% by weight of the isobutene units can be replaced by 1-butene units.
  • hydrocarbon polymer B are particularly suitable olefin polymers described as a precursor to component A.
  • Such olefin polymers have a medium as component B. Molecular weight of preferably 400 to 1750, in particular from 500 to 1500.
  • the hydrocarbon polymer B can still contain olefinic double bonds due to production; such However, double bonds can also have been hydrogenated.
  • the Component B can either be added separately or by suitable reaction control in the production of component A from an excess of the olefin polymers described in the mixture according to the invention can be introduced.
  • a very particularly preferred embodiment for the component B is a medium molecular weight polyisobutene from 500 to 1500, with up to 20% by weight of the isobutene units can be replaced by 1-butene units.
  • Both component A and component B can each Mixtures of different individual compounds.
  • the component is used C is a carrier oil mixture of polyethers (b) and esters (d) a, wherein (b) and (d) preferably in a weight ratio of 20:80 to 80:20, especially 35:65 to 65:35.
  • Component C is usually in the mixture according to the invention in a weight ratio to the sum of amine A and Hydrocarbon polymer B from 5:95 to 85:15, in particular 20:80 until 70:30, before.
  • the mixture according to the invention can contain further components D wherein the amounts of D 0 to 40 wt .-%, preferably 0 to 10% by weight, based on the total weight of components A to C, be. These components D affect the properties of the mixtures according to the invention with regard to their use in Fuels only to a small extent.
  • Component D comprises additives known per se for mixtures, the fuels and lubricants are added. Among them are especially corrosion inhibitors, demulsifiers, detergents or dispersants such as amides and imides of polyisobutyl succinic anhydride to understand.
  • the present invention also relates to the use of described mixture of components A to C as a force and Lubricant additives.
  • the gasoline can also use other components as hydrocarbons, e.g. Alcohols such as methanol, ethanol, tert-butanol and ethers such as methyl tert-butyl ether.
  • hydrocarbons e.g. Alcohols such as methanol, ethanol, tert-butanol and ethers such as methyl tert-butyl ether.
  • the fuels according to the invention contain the mixtures of components A to C generally in amounts of each 10 to 5000 ppm, based on the total mass, preferably 50 to 1000 ppm.
  • the fuels according to the invention can be in addition to the above Component D described also antioxidants, e.g. N, N'-di-sec-butyl-para-phenylenediamine, and stabilizers, e.g. N, N'-disalicylidene-1,2-diaminopropane.
  • Components A to C can be made into clear, homogeneous solutions mix. Fuels additized with this point opposite the pure fuels significantly lower valve deposits. Furthermore, the additives do not contribute to an increase in the octane requirement (ORI) at.
  • ORI octane requirement
  • the present invention further relates to lubricant compositions what effective amounts of the invention Mix included. Effective amounts are usually here 0.1 to 6 wt .-%, in particular 0.5 to 5 wt .-%, based on the Weight of the lubricant composition.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Lubricants (AREA)

Description

Die vorliegende Erfindung betrifft eine neue als Kraft- und Schmierstoffadditiv geeignete Mischung aus im wesentlichen
  • (A) mindestens einem Amin, welches einen Kohlenwasserstoffrest mit einem mittleren Molekulargewicht von 500 bis 10000 trägt,
  • (B) mindestens einem Kohlenwasserstoffpolymer mit einem mittleren Molekulargewicht von 300 bis 10000, welches in nicht hydrierter oder in hydrierter Form vorliegen kann, und
  • (C) Trägerölen
    • mit einem Gew.-Verhältnis der Komponente A zur Komponente B von 80:20 bis 60:40, insbesondere 77:23 bis 65:35.
    Weiterhin betrifft die Erfindung die Verwendung der Mischung als Kraft- und Schmierstoffadditive sowie Kraftstoffe für Ottomotoren und Schmierstoffzusammensetzungen, welche die Mischung in wirksamen Mengen enthalten.
    Vergaser- und Einlaßsystem von Ottomotoren, aber auch Einspritzsysteme für die Kraftstoffdosierung in Otto- und Dieselmotoren werden in zunehmendem Maße durch Verunreinigungen belastet, die durch Staubteilchen aus der Luft, unverbrannte Kohlenwasserstoffreste aus dem Brennraum und die in den Vergaser geleiteten Entlüftungsgase aus dem Kurbelwellengehäuse verursacht werden.
    Die Rückstände adsorbieren Kraftstoff und verschieben das Luft-Kraftstoffverhältnis im Leerlauf und im unteren Teillastbereich, so daß das Gemisch fetter, die Verbrennung unvollständiger und wiederum die Anteile unverbrannter oder teilverbrannter Kohlenwasserstoffe im Abgas größer werden und der Benzinverbrauch steigt.
    Es ist bekannt, daß durch Zusatz von Detergentien das Einlaßsystem von Ottomotoren sauber gehalten werden kann (siehe z.B. M. Rosenbeck in Katalysatoren, Tenside, Mineralöladditive, Herausgeber J. Falbe, U. Hasserodt, S. 223 f., Thieme Verlag, Stuttgart 1978, und Ullmann's Encyclopedea of Industrial Chemistry, Vol. A 16, 719 ff, 1990, VCH Verlagsgesellschaft). Emissionen und Kraftstoffverbrauch werden dadurch reduziert und das Fahrverhalten verbessert. Das molekulare Bauprinzip solcher Detergentien kann allgemein beschrieben werden als Verknüpfung polarer Strukturen mit meist höhermolekularen lipophilen Resten. Vertreter hierfür sind z.B. Produkte auf Basis von Polyisobuten mit Amingruppierungen als polare Gruppen, wie in der EP-A 244 616 (1) beschrieben.
    Die Schrift (1) lehrt weiterhin, daß in Kraftstoffadditiven bis zu ca. 50 Gew.-% der Wirksubstanz, also des Polyisobutylamins, ohne Verlust der Wirksamkeit durch Polyisobuten ersetzt werden können; solch ein Ersatz geschieht vornehmlich aus Kostengründen. Auf eine Verbesserung der Wirksamkeit bei bestimmten Polyisobuten-Mengen wird keinerlei Hinweis gegeben.
    Eine weitere wichtige Additivkomponente für Kraftstoffe sind sogenannte Trägeröle. Bei diesen Trägerölen handelt es sich in der Regel um hochsiedende thermostabile Flüssigkeiten. Aus der EP-B 356 726 (2) sind Ester aromatischer Polycarbonsäuren mit langkettigen Alkoholen als Trägeröle bekannt. In der EP-A 374 461 (3) sind Kombinationen von Polyethern auf der Basis von Propylenoxid und/oder Butylenoxid mit einer Molmasse von mindestens 500 mit Estern aus Mono- oder Polycarbonsäuren und Alkanolen der Polyolen, wobei diese Ester eine Mindestviskosität von 2 mm2/s bei 100°C aufweisen, beschrieben, welche über synergistische Wirkungsmechanismen den Wirkungsgrad des Detergents erhöhen. Aus der US-A 5 006 130 (4) sind Mischungen von aliphatischen Alkylenpolyaminen mit mindestens einem öllöslichen synthetischen oder mineralischen Trägeröl bekannt.
    Die WO-A 91/03529 (5) lehrt die Kombination von Detergentien, die bestimmte Aminogruppen tragen, mit Polyetheralkoholen als Trägeröle. Diese Kombination trage insbesondere weniger als ihre Einzelkomponenten zum Anstieg des Octanzahlbedarfes (ORI, Octane Requirement Increase) bei, der durch Ablagerungen des Kraftstoffs oder der Additive an Motorteilen herrührt. Ein neuer Motor erreicht erst nach erheblicher Laufzeit seinen endgültigen Octanzahlbedarf, der dann erheblich höher liegen kann als zu Beginn. Allgemein sollten Additive diesen Effekt zumindest nicht verstärken.
    Die bekannten Additive des Standes der Technik zeigen noch nicht die optimale Reinigungswirkung im Motor, insbesondere die Verhinderung oder Reduzierung von Ventilablagerungen ist noch verbesserungsbedürftig.
    Aufgabe der vorliegenden Erfindung war es daher, Kraft- und Schmierstoffadditive mit verbesserter Wirksamkeit als Detergentien bereitzustellen.
    Demgemäß wurde die eingangs definierte Mischung gefunden, welche dadurch gekennzeichnet ist, daß als Komponente C ein Trägerölgemisch aus (b) Polyethern auf der Basis von Propylenoxid und/ oder Butylenoxid und (d) Estern aus Mono- oder Polycarbonsäuren und Alkanolen oder Polyolen eingesetzt wird.
    Komponente A
    Die Komponente A ist in Kraftstoffen primär als Detergens wirksam. Als Komponente A kommen solche Amine in Frage, die einen Kohlenwasserstoffrest mit einem mittleren Molekulargewicht von 500 bis 10000, vorzugsweise von 600 bis 2500 und besonders bevorzugt von 700 bis 1500 haben.
    Der Kohlenwasserstoffrest ist in der Regel verzweigt. Im allgemeinen handelt es sich um einen solchen Rest, der durch Polymerisation von Olefinen erhältlich ist. Vorzugsweise handelt es sich bei diesen Olefinen um C2- bis C6-Olefine, wie Ethylen, Propylen, 1-Buten, 1-Penten, besonders bevorzugt aber um Isobuten. Es kommen sowohl Homopolymere in Betracht wie auch Copolymere, z.B. Polymere aus 70 bis 100 Gew.-% Isobuten und 0 bis 30 Gew.-% 1-Buten. Bedingt durch ihren Herstellungsprozeß bestehen diese Polyolefine in der Regel aus einer Mischung von Verbindungen verschiedenen Molekulargewichts.
    In an sich bekannter Weise können diese Polyolefine nach Chlorierung mit Aminen umgesetzt werden. Bevorzugt wird aber eine Hydroformylierung des Polyolefins und Aminierung des so erhaltenen Aldehyd- und Alkoholgemisches unter hydrierenden Bedingungen, wie beispielsweise in (1) beschrieben, da dieser Weg zu chlorfreien Produkten führt. Die Amingruppe des Detergenses A leitet sich von an sich bekannten Aminen wie Ammoniak, primären Aminen wie Methylamin, Ethylamin, Butylamin, Hexylamin, Octylamin, sekundären Aminen wie Dimethylamin, Diethylamin, Dibutylamin, Dioctylamin oder Heterocyclen wie Piperazin, Pyrrolidin, Morpholin, die gegebenenfalls weitere inerte Substituenten tragen können, ab. Besonders bevorzugt ist Ammoniak.
    Eine ganz besonders bevorzugte Ausführungsform für die Komponente A ist ein Polyisobutylamin mit einem mittleren Molekulargewicht von 700 bis 1500, wobei bis zu 20 Gew.-% der Isobuten-Einheiten durch 1-Buten-Einheiten ersetzt sein können.
    Komponente B
    Als Kohlenwasserstoffpolymer B eignen sich insbesondere die als Vorstufe zur Komponente A beschriebenen Olefinpolymerisate. Solche Olefinpolymerisate weisen als Komponente B ein mittleres Molekulargewicht von vorzugsweise 400 bis 1750, insbesondere von 500 bis 1500 auf. Das Kohlenwasserstoffpolymer B kann noch herstellungsbedingt olefinische Doppelbindungen enthalten; solche Doppelbindungen können jedoch auch hydriert worden sein. Die Komponente B kann entweder separat zugegeben werden oder durch geeignete Reaktionsführung bei der Herstellung der Komponente A aus einem Überschuß der beschriebenen Olefinpolymerisate in das erfindungsgemäße Gemisch eingebracht werden.
    Eine ganz besonders bevorzugte Ausführungsform für die Komponente B ist ein Polyisobuten mit einem mittleren Molekulargewicht von 500 bis 1500, wobei bis zu 20 Gew.-% der Isobuten-Einheiten durch 1-Buten-Einheiten ersetzt sein können.
    Sowohl die Komponente A als auch die Komponente B können jeweils Mischungen verschiedener Einzelverbindungen sein.
    Komponente C
    Als Trägeröle C für das Gemisch aus (b) Polyethern und (d) Estern eignen sich:
  • (b) Polyether auf Basis von Propylenoxid und/oder Butylenoxid, insbesondere solche mit einer Molmasse von mindestens 500; insbesondere kommen hier Polyalkylenoxide in Betracht, die auf einem mittel- oder langkettigen Alkanol oder Alkandiol, einem von der Kettenlänge vergleichbaren Amin oder einem Alkylphenol, z.B. auf 1,6-Hexandiol, 1,8-Octandiol, iso-Tridecanol, iso-Nonylphenol, iso-Dedecylphenol oder iso-Tridecylamin, gestartet wurden. Pro Startermolekül können meist bis zu 50 mol, insbesondere 8 bis 30 mol, Propylenoxid oder Butylenoxid oder eine Mischung hieraus, welche blockartig oder zufällig verteilt eingebaut wird, umgesetzt werden;
  • (d) Ester aus Mono- oder Polycarbonsäuren mit Alkanolen oder Polyolen, insbesondere solche mit einer Mindestviskosität von 2 mm2/s bei 100°C; als Mono- oder Polycarbonsäuren können aliphatische oder vorzugsweise aromatische eingesetzt werden, als Esteralkohole bzw. -polyole eignen sich vor allem langkettige Vertreter mit beispielsweise 6 bis 24 C-Atomen; typische Vertreter der Ester (d) sind Adipate, Phthalate, iso-Phthalate, Terephthalate und Trimellitate des iso-Octanols, iso-Nonanols, iso-Decanols und des iso-Tridecanols.
    • In einer besonders bevorzugten Ausführungsform setzt man als Komponente C ein Trägerölgemisch aus Polyethern (b) und Estern (d) ein, wobei (b) und (d) vorzugsweise im Gew.-Verhältnis 20:80 bis 80:20, insbesondere 35:65 bis 65:35, stehen.
    Die Komponente C liegt in der erfindungsgemäßen Mischung üblicherweise in einem Gew.-Verhältnis zur Summe aus Amin A und Kohlenwasserstoffpolymer B von 5:95 bis 85:15, insbesondere 20:80 bis 70:30, vor.
    Die erfindungsgemäße Mischung kann weitere Komponenten D enthalten, wobei die Mengen an D 0 bis 40 Gew.-%, vorzugsweise 0 bis 10 Gew.-%, bezogen auf das Gesamtgewicht der Komponenten A bis C, betragen. Diese Komponenten D beeinflussen die Eigenschaften der erfindungsgemäßen Mischungen im Hinblick auf ihre Verwendung in Kraftstoffen nur in geringem Ausmaß.
    Die Komponente D umfaßt an sich bekannte Additive für Mischungen, die Kraft- und Schmierstoffen zugesetzt werden. Darunter sind insbesondere Korrosionsinhibitoren, Demulgatoren, Detergentien oder Dispergatoren wie Amide und Imide des Polyisobutylbernsteinsäureanhydrids zu verstehen.
    Gegenstand der vorliegenden Erfindung ist auch die Verwendung der beschriebenen Mischung aus den Komponenten A bis C als Kraft- und Schmierstoffadditive.
    Die vorliegende Erfindung betrifft weiterhin Kraftstoffe für Ottomotoren, welche wirksame Mengen der erfindungsgemäßen Mischung enthalten.
    Als Kraftstoffe kommen verbleites und unverbleites Normal- und Superbenzin in Betracht. Die Benzine können auch andere Komponenten als Kohlenwasserstoffe, z.B. Alkohole wie Methanol, Ethanol, tert.-Butanol sowie Ether wie Methyl-tert.-butylether, enthalten.
    Die erfindungsgemäßen Kraftstoffe enthalten die Mischungen aus den Komponenten A bis C im allgemeinen in Mengen von jeweils 10 bis 5000 ppm, bezogen auf die Gesamtmasse, vorzugsweise 50 bis 1000 ppm. Die erfindungsgemäßen Kraftstoffe können neben den oben beschriebenen Komponenten D außerdem noch Antioxidantien, z.B. N,N'-Di-sec.-butyl-para-phenylendiamin, und Stabilisatoren, z.B. N,N'-Disalicyliden-1,2-diaminopropan, enthalten.
    Die Komponenten A bis C lassen sich zu klaren, homogenen Lösungen vermischen. Damit additivierte Kraftstoffe zeigen gegenüber den reinen Kraftstoffen deutlich geringere Ventilablagerungen. Weiterhin tragen die Additive nicht zu einem Anstieg des Octanzahlbedarfes (ORI) bei.
    Die vorliegende Erfindung betrifft weiterhin Schmierstoffzusammensetzungen, welche wirksame Mengen der erfindungsgemäßen Mischung enthalten. Unter wirksamen Mengen sind hier in der Regel 0,1 bis 6 Gew.-%, insbesondere 0,5 bis 5 Gew.-%, bezogen auf das Gewicht der Schmierstoffzusammensetzung, zu verstehen.
    Beispiele Bestimmung von Ventilablagerungen durch Motorentests im Mercedes-Benz M 102 E nach CEC-F-05-T-92
    Bei den Motorentests wurden Mischungen aus den Komponenten A, B und C und zum Vergleich Mischungen aus den Komponenten A und C auf ihre Wirksamkeit zur Reinerhaltung der Einlaßventile geprüft. Der verwendete Kraftstoff war Eurosuper bleifrei.
    Beispiel Nr. Komponente Menge [ppm ≙ mg/kg Kraftstoff] durchschnittliche Ventilablagerungen [mg]
    Zum Vergleich:
    1 A: PIBA (M ca. 1000) 300 83
    C: Mineralöl 300
    2 A: PIBA (M ca. 1000) 300 70
    C: Polyether 300
    3 A: PIBA (M ca. 1000) 300 80
    C: Ester 300
    4 A: PIBA (M ca. 1000) 300 48
    B: PIB (M ca. 1000) 150
    C: Polyether 150
    5 A: PIBA (M ca. 1000) 300 60
    B: PIB (M ca. 1000) 150
    C: Ester 150
    erfindungsgemäß:
    6 A: PIBA (M ca. 1000) 300 15
    B: PIB (M ca. 1000) 100
    C: Polyether 100
    Ester 100
    7 A: PIBA (M ca. 1000) 300 7
    B: PIB (M ca. 700) 100
    C: Polyether 100
    Ester 100
    Zu erkennen ist die deutlich höhere Wirksamkeit der erfindungsgemäßen Mischung gemäß Beispiel 6 und 7 gegenüber den Mischungen gemäß Beispiel 1 bis 5.

    Claims (9)

    1. Als Kraft- und Schmierstoffadditiv geeignete Mischung aus im wesentlichen
      (A) mindestens einem Amin, welches einen Kohlenwasserstoffrest mit einem mittleren Molekulargewicht von 500 bis 10000 trägt,
      (B) mindestens einem Kohlenwasserstoffpolymer mit einem mittleren Molekulargewicht von 300 bis 10000, welches in nicht hydrierter oder in hydrierter Form vorliegen kann, und
      (C) Trägerölen,
      mit einem Gew.-Verhältnis der Komponente A zur Komponente B von 80:20 bis 60:40, dadurch gekennzeichnet, daß als Komponente C ein Trägerölgemisch aus (b) Polyethern auf der Basis von Propylenoxid und/oder Butylenoxid und (d) Estern aus Mono- oder Polycarbonsäuren und Alkanolen oder Polyolen eingesetzt wird.
    2. Als Kraft- und Schmierstoffadditiv geeignete Mischung nach Anspruch 1, gekennzeichnet durch ein Gew.-Verhältnis der Komponente A zur Komponente B von 77:23 bis 65:35.
    3. Als Kraft- und Schmierstoffadditiv geeignete Mischung nach Anspruch 1 oder 2, in der als Komponente A ein Polyisobutylamin mit einem mittleren Molekulargewicht von 700 bis 1500 eingesetzt wird, wobei bis zu 20 Gew.-% der Isobuten-Einheiten durch 1-Buten-Einheiten ersetzt sein können.
    4. Als Kraft- und Schmierstoffadditiv geeignete Mischung nach den Ansprüchen 1 bis 3, in der als Komponente B ein Polyisobuten mit einem mittleren Molekulargewicht von 500 bis 1500 eingesetzt wird, wobei bis zu 20 Gew.-% der Isobuten-Einheiten durch 1-Buten-Einheiten ersetzt sein können.
    5. Verwendung der Mischung gemäß den Ansprüchen 1 bis 4 als Kraft- und Schmierstoffadditive.
    6. Kraftstoffe für Ottomotoren, enthaltend wirksame Mengen der Mischung gemäß den Ansprüchen 1 bis 4.
    7. Kraftstoffe für Ottomotoren, enthaltend 10 bis 5000 ppm der Mischung gemäß den Ansprüchen 1 bis 4.
    8. Schmierstoffzusammensetzungen, enthaltend wirksame Mengen der Mischung gemäß den Ansprüchen 1 bis 4.
    9. Schmierstoffzusammensetzungen, enthaltend 0,1 bis 6 Gew.-% der Mischung gemäß den Ansprüchen 1 bis 4.
    EP95114693A 1994-09-28 1995-09-19 Als Kraft- und Schmierstoffadditiv geeignete Mischung aus Aminen, Kohlenwasserstoffpolymeren und Trägerölen Expired - Lifetime EP0704519B1 (de)

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