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DE927819C - Additives for lubricants - Google Patents

Additives for lubricants

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Publication number
DE927819C
DE927819C DEC6493A DEC0006493A DE927819C DE 927819 C DE927819 C DE 927819C DE C6493 A DEC6493 A DE C6493A DE C0006493 A DEC0006493 A DE C0006493A DE 927819 C DE927819 C DE 927819C
Authority
DE
Germany
Prior art keywords
lubricants
sulfur
additives
percent
weight
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.)
Expired
Application number
DEC6493A
Other languages
German (de)
Inventor
Wilhelm Dr Dietrich
Hans-Joachim Dr Mertens
Fritz Dr Wetter
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Priority to DEC6493A priority Critical patent/DE927819C/en
Application granted granted Critical
Publication of DE927819C publication Critical patent/DE927819C/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C—CHEMISTRY; METALLURGY
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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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
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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
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/20—Containing nitrogen-to-oxygen bonds
    • C10M2215/202—Containing nitrogen-to-oxygen bonds containing nitro groups
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
    • C—CHEMISTRY; METALLURGY
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
    • C—CHEMISTRY; METALLURGY
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/083—Dibenzyl sulfide
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/084—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/085—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groups; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • C10M2219/088—Neutral salts
    • C—CHEMISTRY; METALLURGY
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    • C10M2219/089—Overbased salts
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C—CHEMISTRY; METALLURGY
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    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
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    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C—CHEMISTRY; METALLURGY
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    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
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    • C10M2219/106—Thiadiazoles
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    • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2221/043—Polyoxyalkylene ethers with a thioether group
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/08—Groups 4 or 14
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

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

Description

AUSGEGEBEN AM 16. MAI 1955ISSUED MAY 16, 1955

C O4P3IVd/23 cCO 4 P 3 IVd / 23 c

Zusätze für SchmiermittelAdditives for lubricants

Gegenstand' des Patents 925 192 ist die Verwendung von organischen Nitroverbindungen und öllöslicihen Di- bzw. Polysulfide» von Xanthogenaten als Zusätze zu Schmiermitteln auf Mineralölbasis. The subject of the patent 925 192 is the use of organic nitro compounds and oil-soluble di- or polysulphides »of xanthates as additives to lubricants based on mineral oil.

Es wurde gefunden, daß auch die Verwendung von organischen Nitroverbindungen und, an Stelle öHöslicher Di- bzw. Polysulfide von Xantihogenaten, öllöisliohen oder durch Lösungsvermittler in Lösung zu bringenden, mit Schwefel behandelten ungesättigten Alkoholen als Zusätze au Schmiermitteln auf der Basis von natürlichen und synthetischen Mineralölen und -fetten eine ganz wesentliche Verbesserung ihrer Hochdruckschmierfähigkeit bewirkt.It has been found that the use of organic nitro compounds and, instead öSoluble disulphides or polysulphides of xantihogenates, öllöisliohen or to be brought into solution by solubilizers, unsaturated treated with sulfur Alcohols as additives in lubricants on the basis of natural and synthetic Mineral oils and fats significantly improve their high pressure lubricity causes.

Geeignete organische Nitroverbindungen sind im Patent 925 192 beschrieben.Suitable organic nitro compounds are described in Patent 925 192.

Die mit Schwefel behandelten ungesättigten Alkohole werden zweckmäßig nach den Verfahren der USA.-Patentschriften 2 043 961 und 2 254 756 durch Umsetzen von Schwefel mit ungesättigten Alkoholen bei erhöhter Temperatur hergestellt. Zu diesem Zweck erhitzt man beispielsweise 1 Mol eines ungesättigten Alkohols mit mindestens 1 Mol Schwefel auf Temperaturen von 120 bis i8o°. Hierbei lagert sich der Schwefel an die Doppelbindungen an, indem die ursprünglich Doppelbindungen tragenden Kohlenstoffatome durch zusätzliche Schwefelbrücken miteinander verknüpft werden. Geeignete Alkohole sind z. B. Allylalkohol,The sulfur-treated unsaturated alcohols are conveniently processed according to the method U.S. Patents 2,043,961 and 2,254,756 by reacting sulfur with unsaturates Alcohols produced at elevated temperature. For this purpose, for example, 1 mol is heated of an unsaturated alcohol with at least 1 mole of sulfur at temperatures of 120 to 180 °. Here, the sulfur attaches itself to the double bonds by removing the original double bonds carrying carbon atoms linked by additional sulfur bridges will. Suitable alcohols are e.g. B. allyl alcohol,

Allylearbinol, Octendiol, Dicyclopentadienol, a- oder /S-Terpineol und andere.Allylearbinol, octenediol, dicyclopentadienol, a- or / S-terpineol and others.

Geeignete Lösungs Vermittler sind ζ. Β. 2-Äthylhexanol, 2-Äthyl-i, 3-hexandiol, 2-Methy.lpentandiol-i, 4, Diäthylenglykolmonoäthyläther, Diäthylenglykol'monobuitylätjher. Suitable solubilizers are ζ. Β. 2-ethylhexanol, 2-ethyl-i, 3-hexanediol, 2-methy.lpentanediol-i, 4, diethylene glycol monoethyl ether, diethylene glycol monobuityl ether.

Die im einzelnen anzuwendenden Mengen- an Nitroverbindungen und mit Schwefel behandelten ungesättigten Alkoholen und die jeweils zu verwendenden Verbindungen richten sich nach dem Verwendungszweck. Im allgemeinen beträgt der Anteil der Nitroverbindungen nur einen Bruchteil der mit Sahwefel behandelten ungesättigten Alkohole (bis zu 10 Gewichtsprozent derselben), von denen, je nach der geforderten Hochdirudoschmierfähigkeit, im allgemeinen Mengen zwischen etwa 0,5 und 10 Gewichtspro'zent, 'bezogen auf das reine Schmiermittel,' in Betracht kommen.The quantities of nitro compounds to be used and those treated with sulfur unsaturated alcohols and the compounds to be used in each case depend on the Purpose of use. In general, the proportion of nitro compounds is only a fraction of the unsaturated alcohols treated with sahulfur (up to 10 percent by weight thereof), of which, depending on the required high Dirudos lubricity, in general amounts between about 0.5 and 10 percent by weight, based on the pure Lubricants, 'come into consideration.

Die neuen Nitroverbindungen und mit Schwefel behandelte ungesättigte Alkohole enthaltenden Schmiermittel zeigen gegenüber Metallen bei normalen Temperaturen keine, bei erhöhten Temper raturen und längeren Einwirkungszeiten nur geringfügige, praktisch nicht ins Gewicht fallende Korrosionserscheinungen. Den durch die erwähnten Zusätze verbesserten Schmiermitteln können noch andere Mittel zur Verbesserung der Hochdrudcschmierfähigkeit sowie Viskositätsverbesserer, S tockpunktserniedr iger, Schaumverhinderer und gegebenenfalls Antioxydationsmittel zugesetzt werden.Containing the new nitro compounds and sulfur-treated unsaturated alcohols Lubricants show no effect on metals at normal temperatures and at elevated temperatures temperatures and longer exposure times are only minor, practically negligible Signs of corrosion. The lubricants improved by the additives mentioned can still other means of improving high pressure lubricity as well as viscosity improvers, bottom point lowerers, foam inhibitors and if necessary, antioxidants can be added.

Überprüft man die Hochdruckschmierfähigkeit auf dem allgemein gebräuchlichen Vierkugelapparat (VKA) nach der in »Öl und Kohle«, 1944, S. 19 bis 23, beschriebenen Methode, so sind bei Zusatz von beispielsweise 0,1 bis 0,25 Gewichtsprozent organischer Nitroverbindungen zusammen mit ι bis 2,5 Gewichtsprozent an mit Sahwefel behandelten ungesättigten Alkoholen Belastungen von 400 bis über 1000 kg möglich, bevor ein Verschweißen der Kugeln eintritt.Check the high-pressure lubricity on the commonly used four-ball apparatus (VKA) according to the method described in "Oil and Coal", 1944, pp. 19 to 23 for example 0.1 to 0.25 percent by weight organic nitro compounds together with ι to 2.5 percent by weight of treated with Sahwefel Unsaturated alcohols loads of 400 to over 1000 kg are possible before welding the balls enters.

Es ist bereits vorgeschlagen worden, Schmiermitteln neben Nitroverbindungen Schwefel oder geschwefelte fette Öle oder geschwefelte Mineralöle zuzusetzen. Bei den beanspruchten, mit Schwefel behandelten ungesättigten Alkoholen handelt es sich dagegen um definierte chemische Verbindungen, deren Zusatz zu. den Schmiermitteln nicht nur überlegene JVKA-Zahlen, sondern im Gegensatz zu Schwefel,, geschwefelten fetten" Ölen oder geschwefelten Mineralölen auch jederzeit reproduzierbare Werte ergibt.It has already been proposed to use sulfur or lubricants in addition to nitro compounds to add sulphurized fatty oils or sulphurized mineral oils. In the case of the claimed, with sulfur treated unsaturated alcohols, on the other hand, are defined chemical compounds, their addition to. The lubricants not only have superior JVKA numbers, but in contrast to Sulfur "sulphurized fatty" oils or sulphurized mineral oils can also be reproduced at any time Values.

Auch die bekannte Verwendung von Schwefel enthaltenden Verbindungen zusammen mit Nitroverbindungen als Zusätze für Schmiermittel auf Mineralölbasis ergibt nur Schmiermittel, die bei der Prüfung auf dem Vierkugelapparat niedrige VKA-ZaMen besitzen. Demgegenüber war nicht vorauszusehen, daß Zusätze, die als Scihwefelver'bindungen die bislang noch nicht für diesen Zweck verwendeten, mit Sahwefel behandelten ungesättigten Alkohole enthalten, derartig überlegene VKA-Zahlen ergeben.Also the known use of sulfur-containing compounds together with nitro compounds as additives for lubricants based on mineral oil only results in lubricants that are the test on the four-ball apparatus have low VKA-ZaMen. In contrast, was not to foresee that additives that are used as sulfur compounds have not yet been used for this Purpose used, containing unsaturated alcohols treated with sahwefel, such superior VKA numbers result.

Beispiel ιExample ι

Ein Getriebeöl' mit der VKA-Zahl unter 180 (Dichte d '| = 0,9320, Viskosität bei 2ö°=226°E, bei 500= 22,501E, Viskositätsindex= 13, Stockpunkt—130) wird durch Zugabe von 0,25 Gewichtsprozent Dinitrophenol 'bezüglich seiner Hoch- druokschmierfähigkeit nicht verbessert. Werden dem Getriebeöl 4 Gewichtsprozent mit Sahwefel bei erhöhter Temperatur umgesetztes Dicyolopentadienol (Sahwefelwert 17,3 °/o) zugesetzt, so' steigt die VKA-Zahl auf 240. Setzt man jedoch dem geschwefelten Dicyclopentadienol 0,25 Gewichtsprozenit ^-Dinitrophenol mit 10 Gewichtsprozent Diäthylenglykolmonobutyläther als Lösungsvermittler im Getriebeöl zu, so steigt die VKA-Zahl auf über 400 an. v A gear oil with a VKA number below 180 (density d '| = 0.9320, viscosity at 20 ° = 226 ° E, at 50 0 = 22.5 01 E, viscosity index = 13, pour point −13 0 ) is passed through Addition of 0.25 percent by weight of dinitrophenol does not improve its high pressure lubricity. If 4 percent by weight of dicyolopentadienol reacted with sahulfur at elevated temperature (Sahulfur value 17.3%) is added to the gear oil, the VKA number rises to 240. However, if the sulfurized dicyclopentadienol is added 0.25 percent by weight of dinitrophenol with 10 percent by weight of diethylene glycol monobutyl ether as a solubilizer in the transmission oil, the number of VKA rises to over 400. v

B e i s ρ i e 1 2B e i s ρ i e 1 2

Setzt man dem im Beispiel 1 verwendeten Getriebeöl 8 Gewichtsprozent eines mit Schwefel umgesetzten Oleylalkohols zu, so erhält man eine VKA-Zahl von 500. Durch Zusatz von 0,25 Gewichtsprozent ^-Dinitrophenol steigt die VKA-Zahl auf. 700, während durch Zusatz von· 0,25 Gewichtsprozent /3-Dinitrophenol allein zu dem reinen Mineralöl keine Verbesserung der Hoehdruckschmierfähigkeit erzielt wird.If the gear oil used in Example 1 is used 8 percent by weight of one reacted with sulfur If oleyl alcohol is added, a VKA number of 500 is obtained. By adding 0.25 percent by weight ^ -Dinitrophenol increases the VKA number. 700, while by adding 0.25 percent by weight / 3-Dinitrophenol alone in addition to the pure mineral oil does not improve the high pressure lubricity is achieved.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Weitere· Ausbildung des Gegenstandes des "Patents 925 192, gekennzeichnet durch die Verwendung öllöslicher oder durch Lösungsvermittler in Lösung zu bringender, mit - Schwefel behandelter ungesättigter Alkohole neben organischen Nitroverbindungen als Zusätze für Schmiermittel.Further development of the subject matter of "Patent 925 192, characterized by the use Oil-soluble or to be brought into solution by solubilizers, with - Sulfur-treated unsaturated alcohols in addition to organic nitro compounds as additives for lubricants. Angezogene Drud<schriften:
Britische Patentschrift Nr. 455 305.Drawn up fonts:
British Patent No. 455 305. 1 509504 5.551 509504 5.55
DEC6493A 1952-08-25 1952-10-04 Additives for lubricants Expired DE927819C (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016876B (en) * 1956-03-22 1957-10-03 Basf Ag High pressure lubricating oils
DE1076299B (en) * 1956-08-18 1960-02-25 Basf Ag Lubricating oils

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB455305A (en) * 1934-04-24 1936-10-19 Du Pont Improvements in or relating to lubricants

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB455305A (en) * 1934-04-24 1936-10-19 Du Pont Improvements in or relating to lubricants

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016876B (en) * 1956-03-22 1957-10-03 Basf Ag High pressure lubricating oils
DE1076299B (en) * 1956-08-18 1960-02-25 Basf Ag Lubricating oils

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