CH439552A - Lithium soap grease - Google Patents

Lithium soap grease

Info

Publication number
CH439552A
CH439552A CH581063A CH581063A CH439552A CH 439552 A CH439552 A CH 439552A CH 581063 A CH581063 A CH 581063A CH 581063 A CH581063 A CH 581063A CH 439552 A CH439552 A CH 439552A
Authority
CH
Switzerland
Prior art keywords
sep
lithium
epoxy
soaps
hydroxystearate
Prior art date
Application number
CH581063A
Other languages
German (de)
Inventor
Szczepanek Alfred Dr Dipl-Chem
Original Assignee
Chem Fab Hoesch Kg
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 Chem Fab Hoesch Kg filed Critical Chem Fab Hoesch Kg
Publication of CH439552A publication Critical patent/CH439552A/en

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
    • 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
    • C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
    • 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
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/16—Naphthenic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Landscapes

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

Description

  

      Lithiumseifensehmierfett       Gegenstand des     Hauptpatentes    Nr. 410 250     ist        ein          Verfahren    zur Herstellung von     Lithiumseifen-Schmierfett     auf     Schmierölbasis;        dadurch        gekennzeichnet,        d'ass    der       Verdicker    aus einem     Lithiumseifengemisch    oder     einer          Lithiummischseife        gesättigter    und     epoxydierber    Fett  säuren besteht.

   Als     Ölbasis    der     erfindungsgemässen          Schmierfette    können     Mineralblle,        synthetische    Schmier  öle, wie Ester     und!    Äther, vegetabilische und     animalische     Öle     eingesetzt    werden.  



  Die     Lithiumseifenverdicker    bestehen aus     einem    Ge  misch von     Ldthiumsalzen        epoxydierter        ungesättigter        und          gesättigter    Fettsäuren.

   Das Hauptpatent beschreibt aus  führlich die     Schmierölbasis        Mineralöle.    In     diesem        Fall          enthalten    die     Lithiumseifenverdicker    je nach     Art    der       verwendeten        Epaxyfettsäure    90 bis<B>50%</B>     gesättigter     Fettsäuren.

       Lithiumepoxyseifen        allein        als        Verdicker    in       Mineralölen        eingesetzt,    zeigen keine oder     nur    sehr       schlechte        schmierfettbild'ende    Eigenschaften.  



  Gegenstand     vorliegender    Erfindung ist     ein        Lithium-          seifenschmierfett,    das dadurch.     gekennzeichnet    ist, dass  seine     Schmierölbasis    aus     synthetischen    Ölen oder     unge-          sättigten        Glyceriden    und dass     sein        Verdicker    zu min  destens 90 % aus     Lithiumepoxyseifen        oder        Lithium-          epoxyhydroxyseifen    besteht.  



  Es hat sich     nämlich    gezeigt, dass,     im;    Gegensatz zu  den Fetten auf     Mineralölbasiis    gemäss dem     Hauptpatent,     bei     Verwendung    von synthetischen Ölen oder unge  sättigten     Glyceriden    als     Schmierölbasis    der     Einsatz        einer          Lithiumepoxyseife    oder     Lithiumepoxyhydroxyseife        allfein          möglich    ist und     dass        darüber        hinaus     <RTI  

   ID="0001.0083">   Schmierfette    gebildet  werden, die sich in     ihrer        Struktur        von        denjenigen    mit       grösseren    Gehalten an     Lithiumseifen        gesättigter        oder          Hydroxy    Fettsäuren     unterscheiden.    Die     erfindungsgemäss     zur Anwendung kommenden     Verdicker    können gegebe  nenfalls bis maximal<B>10%</B>     ihres    Gewichtes     an    epoxy-         gruppenfreien     <RTI  

   ID="0001.0099">   Lithiumseifen        enthalten,    die sich von       gesättigten    oder     ungesättigten    Fettsäuren natürlicher Art  ableiten.  



       Lthiumseifenverdicker,    die nur     Epoxy-    oder     Epoxy-          Hydroxy-Gruppen,    wie     Lithiumepoxystearat    oder     Li          thiumepoxyhydroxystearat,        enthalten,        verhalten    sich       unterschiedlich    gegenüber synthetischen und     vegetabüi-          schen        oder        animalischen    Ölen.  



       Lithiumepoxystearat    eignet sich bevorzugt     zur          Schmierfettherstellung    auf     Grundlage        esterartiger    oder  ätherartiger Öle, wie z.

   B.     Diootylsebacat,        Rizinusöl,     Lebertran,     Polyran    (Warenzeichen) (Polyäther, durch       Polymerisätion    von     Alkylenoxyden    .aufgebaut;

   Liefer  werk Bayer, Leverkusen).     Lithiumepoxyhydroxystearat,     dargestellt durch     Epoxydierung        und!    Verseifen von       Rizinusöl,    eignet sich besonders     zur        Schmierfettbildung     auf     Grundlage    von     Polyglykolen    und     Glykolen,    wie       Hexylenglykol    und     Polyglykol.     



  Die     Erfindung    sei     anhand    der folgenden     Beispiele          näher    erläutert.  



  <I>Beispiel 1</I>       Schmierfett        auf    Basis     Diocty15ebacat          enthaltend    10 %     Lithiums.tearat    oder  <B>10%</B>     Lithiumhydroxystearat    oder  10 %     Lithiumepoxystearat     30 g der vorher     angeführten        Lithi'umseifen    werden  in 270 g     Dioctylsebacat    unter     Rühren        bei        Zimmer-          temperatur        dispergiert    und langsam auf 205 C er  wärmt.

   Man     rühtt    15     Minuten    bei dieser     Temperatur,          lässt    auf l00  C     abkühlen,    hält ohne Rühren eine     Stunde     bei dieser Temperatur und     .lässt        dann    langsam auf       Zimmertemperatur        abkühlen.    Das ausgekühlte     Fett        wird     durch     dreimaliges    Walzen auf einem     Dreiwalzens'tuhl          homogenisiert.       
EMI0002.0001     
  
    Lithiumstearat <SEP> Lithiumhydroxystearat <SEP> 

  Lithiumepoxystearat
<tb>  Penetration <SEP> dreimal <SEP> egalisiert <SEP> 241 <SEP> 293 <SEP> 265
<tb>  Penetration <SEP> 60 <SEP> Hübe <SEP> 282 <SEP> 317 <SEP> 347
<tb>  Penetration <SEP> 5000 <SEP> Hübe <SEP> 356 <SEP> 355 <SEP> 333
<tb>  Farbe <SEP> weiss <SEP> weiss <SEP> hellbraun
<tb>  Transparenz <SEP> opak <SEP> opak <SEP> transparent
<tb>  Blutung <SEP> nach <SEP> 3 <SEP> Tagen <SEP> nach <SEP> 3 <SEP> Tagen <SEP> keine            Lithiumepoxystearat    bewirkt im Gegensatz zu     Li-          thiumstearat    oder     Lithiumhydroxystemat    ein transpa  rentes Aussehen des Schmierfettes und     kein        Ausschwitzen          d'es        

  Grundöls    bei der Lagerung.  



  <I>Beispiel 2</I>       Schmierfett    auf Basis     Rieinusöl,     enthaltend 10 %     Lithiumstearat    oder    <B>10%</B>     Lithiumhydroxystearat    oder  <B>10%</B>     Lithiumepaxystearat     30 g der oben aufgeführten     Lithiumseifen    werden       kaut    in 270g     Rieinusöl,    Viskosität 23 X 50  E,

   bei       Zimmertemperatur    d     spiergiert    und unter Rühren     1!ang-          sam    auf<B>205'C</B>     erwärmt.    Es wird eine     Viertelstunde          bei    dieser Temperatur     gerührt    und wie in Beispiel 1 be  schrieben     abgekühlt    und aufgearbeitet.

    
EMI0002.0027     
  
    Lithiumstearat <SEP> Lithiumhydroxystearat <SEP> Lithiumepoxystearat
<tb>  Penetration <SEP> dreimal <SEP> egalisiert <SEP> 273
<tb>  Penetration <SEP> 60 <SEP> Hübe <SEP> 298
<tb>  Penetration <SEP> 5000 <SEP> Hübe <SEP> keine <SEP> Sehmierfettbildung <SEP> 335
<tb>  Farbe <SEP> gelb
<tb>  Transparenz <SEP> transparent
<tb>  Blutung <SEP> keine            Lithiumepoxystearat        zeigt        ini    Gegensatz zu     Lithium-          stearat    oder     Lithiumhydroxystearat        schmierfettbild'ende     Eigenschaften     in.        Ricinusöl    als     Grundöl.    

      Die        Schmier-          Beispiel   <I>3</I>       Schmierfett        auf        Basis        Hexylenglykol,          enthaltend    30 %     Lithiumstearat    oder  <B>30%</B>     Lithiumhydroxystearat    oder  <B>30%</B>     Lithiumepaxyhydroxystearat            fette        sind    transparent .und zeigen bei der Alterung kein       Ausschwitzen    des Grundöls.  



  30 g der oben     genannten        Lithiumseifen    werden in  270 g     Hexylenglykol,    Viskosität 1,69 X 50 E,     bei          Zimmertemperatur        dispergiert    und langsam auf 150  C  erwärmt. Man     rührt    15 Minuten bei     dieser    Temperatur       und;        arbeitet    wie in Beispiel 1 beschrieben auf.

    
EMI0002.0062     
  
    L<U>i</U>thiumstea<U>r</U>at <SEP> <U>Lithi</U>umhydroxystearat <SEP> Lithiumepoxyhydroxystearat
<tb>  Penetration <SEP> dreimal <SEP> egalisiert <SEP> keine <SEP> Schmierfett- <SEP> 206 <SEP> 177
<tb>  Penetration <SEP> 60 <SEP> Hübe <SEP> bildung <SEP> 255 <SEP> 186
<tb>  Penetration <SEP> 5000 <SEP> Hübe <SEP> 298 <SEP> 179
<tb>  Farbe <SEP> weiss <SEP> gelb
<tb>  Transparenz <SEP> opak <SEP> transparent
<tb>  Blutung <SEP> keine <SEP> keine            Lithiumepoxyhydroxystearat        zeigt        bessere     Eigenschaften als     Lithiumhydroxystearat.     



  Die     Schmierfette    sind     transparent    und     alterungsstabil.          Beispiel   <I>4</I>       Schmierfett    auf Basis     Polyglykol,          enthaltend    30 %     Lithiumstearat    oder    <B>30%</B>     Lithiumhydroxysteärat    oder  30 %     Lithiumepoxyhyd@oxystearat     30 g der oben genannten     Lithiumseifen    werden in  270 g     Polyglykol;

          (Mol-Gewicht    300) bei     Zimmer-          temperatur        dispergiiert    und unter Rühren langsam auf  205  C erwärmt.     Abkühlung    und     Aufarbeitung    wie  Beispiel 1.

      
EMI0003.0001     
  
    Lithiumstearat <SEP> Lithiumhydroxystearat <SEP> Lithiumepoxyhydroxystearat
<tb>  Penetration <SEP> dreimal <SEP> egalisiert <SEP> 243
<tb>  Penetration <SEP> GO <SEP> Hübe <SEP> <B>268</B>
<tb>  Penetration <SEP> 5000 <SEP> Hübe <SEP> keine <SEP> homogene <SEP> Schmierfettbildung <SEP> 323
<tb>  Farbe <SEP> hellgelb
<tb>  Transparenz <SEP> transparent
<tb>  Blutung <SEP> keine            Lithiumepoxyhydroxystearat    zeigt im Gegensatz zu       Lithiumstearat    und     Lithiumhydroxystearat        schmierfett-          bildende    Eigenschaften im     Polyglykol.  



      Lithium soap grease The subject of the main patent No. 410 250 is a process for the production of lithium soap grease based on lubricating oil; characterized in that the thickener consists of a lithium soap mixture or a lithium mixed soap of saturated and epoxidized fatty acids.

   As an oil base for the lubricating greases according to the invention, mineral balls, synthetic lubricating oils such as esters and Ether, vegetable and animal oils are used.



  The lithium soap thickeners consist of a mixture of Ldthium salts of epoxidized unsaturated and saturated fatty acids.

   The main patent describes in detail the lubricating oil base mineral oils. In this case, the lithium soap thickeners contain 90 to <B> 50 </B> saturated fatty acids, depending on the type of epaxy fatty acid used.

       Lithium epoxy soaps used alone as a thickener in mineral oils show no or only very poor lubricating fat-forming properties.



  The present invention is a lithium soap grease, which thereby. is marked that its lubricating oil base consists of synthetic oils or unsaturated glycerides and that its thickener consists of at least 90% lithium epoxy soaps or lithium epoxy hydroxy soaps.



  It has been shown that, in; In contrast to the mineral oil-based greases according to the main patent, when synthetic oils or unsaturated glycerides are used as the lubricating oil base, the use of a lithium epoxy soap or lithium epoxy hydroxy soap is entirely possible and, in addition, <RTI

   ID = "0001.0083"> Lubricating greases are formed which differ in their structure from those with larger contents of lithium soaps, saturated or hydroxy fatty acids. The thickeners used according to the invention can optionally contain up to a maximum of <B> 10% </B> of their weight in epoxy group-free <RTI

   ID = "0001.0099"> Contain lithium soaps which are derived from saturated or unsaturated fatty acids of a natural type.



       Lithium soap thickeners which only contain epoxy or epoxy-hydroxyl groups, such as lithium epoxystearate or lithium epoxy hydroxystearate, behave differently in relation to synthetic and vegetable or animal oils.



       Lithium epoxystearate is particularly suitable for producing lubricating grease based on ester-like or ethereal oils, such as.

   B. diootyl sebacate, castor oil, cod liver oil, polyran (trademark) (polyether, built up by polymerizing alkylene oxides;

   Bayer delivery plant, Leverkusen). Lithium epoxy hydroxystearate, represented by epoxidation and! Saponification of castor oil, is particularly suitable for the formation of lubricating grease based on polyglycols and glycols, such as hexylene glycol and polyglycol.



  The invention is explained in more detail by means of the following examples.



  <I> Example 1 </I> Lubricating grease based on dioctyl sebacate containing 10% lithium tearate or 10% lithium hydroxystearate or 10% lithium epoxystearate 30 g of the lithium soaps listed above are added to 270 g of dioctyl sebacate with stirring Dispersed at room temperature and slowly warmed to 205 ° C.

   The mixture is stirred for 15 minutes at this temperature, allowed to cool to 100 ° C., held at this temperature for one hour without stirring and then allowed to cool slowly to room temperature. The cooled fat is homogenized by rolling it three times on a three-roller chair.
EMI0002.0001
  
    Lithium stearate <SEP> Lithium hydroxystearate <SEP>

  Lithium epoxystearate
<tb> Penetration <SEP> three times <SEP> equalized <SEP> 241 <SEP> 293 <SEP> 265
<tb> Penetration <SEP> 60 <SEP> strokes <SEP> 282 <SEP> 317 <SEP> 347
<tb> Penetration <SEP> 5000 <SEP> strokes <SEP> 356 <SEP> 355 <SEP> 333
<tb> color <SEP> white <SEP> white <SEP> light brown
<tb> transparency <SEP> opaque <SEP> opaque <SEP> transparent
<tb> Bleeding <SEP> after <SEP> 3 <SEP> days <SEP> after <SEP> 3 <SEP> days <SEP> none In contrast to lithium stearate or lithium hydroxyl systemate, lithium epoxystearate causes a transparent appearance of the lubricating grease and none Exuding d'es

  Base oil in storage.



  <I> Example 2 </I> Lubricating grease based on Rieinus oil, containing 10% lithium stearate or <B> 10% </B> lithium hydroxystearate or <B> 10% </B> lithium epaxystearate 30 g of the lithium soaps listed above are chewed in 270 g Rieinus oil, viscosity 23 X 50 E,

   at room temperature d and heated slowly to <B> 205'C </B> while stirring. The mixture is stirred for a quarter of an hour at this temperature and cooled and worked up as described in Example 1 be.

    
EMI0002.0027
  
    Lithium stearate <SEP> lithium hydroxystearate <SEP> lithium epoxystearate
<tb> Penetration <SEP> three times <SEP> equalized <SEP> 273
<tb> Penetration <SEP> 60 <SEP> strokes <SEP> 298
<tb> Penetration <SEP> 5000 <SEP> strokes <SEP> none <SEP> Sehmier fat formation <SEP> 335
<tb> color <SEP> yellow
<tb> transparency <SEP> transparent
<tb> Bleeding <SEP> no Lithium epoxystearate, in contrast to lithium stearate or lithium hydroxystearate, shows lubricating properties in castor oil as base oil.

      The lubricating example <I> 3 </I> lubricating grease based on hexylene glycol, containing 30% lithium stearate or <B> 30% </B> lithium hydroxystearate or <B> 30% </B> lithium epoxy hydroxystearate greases are transparent. And show at no exudation of the base oil during aging.



  30 g of the above-mentioned lithium soaps are dispersed in 270 g of hexylene glycol, viscosity 1.69 × 50 E, at room temperature and slowly heated to 150.degree. The mixture is stirred for 15 minutes at this temperature and; works as described in Example 1 on.

    
EMI0002.0062
  
    L <U> i </U> thiumstea <U> r </U> at <SEP> <U> Lithi </U> umhydroxystearat <SEP> Lithiumepoxyhydroxystearat
<tb> Penetration <SEP> three times <SEP> equalized <SEP> none <SEP> lubricating grease- <SEP> 206 <SEP> 177
<tb> Penetration <SEP> 60 <SEP> strokes <SEP> formation <SEP> 255 <SEP> 186
<tb> Penetration <SEP> 5000 <SEP> strokes <SEP> 298 <SEP> 179
<tb> color <SEP> white <SEP> yellow
<tb> transparency <SEP> opaque <SEP> transparent
<tb> bleeding <SEP> none <SEP> none Lithium epoxy hydroxystearate shows better properties than lithium hydroxystearate.



  The lubricating greases are transparent and stable against aging. Example <I> 4 </I> Lubricating grease based on polyglycol, containing 30% lithium stearate or <B> 30% </B> lithium hydroxystearate or 30% lithium epoxyhyd @ oxystearate 30 g of the above-mentioned lithium soaps are in 270 g of polyglycol;

          (Molar weight 300) dispersed at room temperature and slowly heated to 205 ° C. with stirring. Cooling and working up as in Example 1.

      
EMI0003.0001
  
    Lithium stearate <SEP> lithium hydroxystearate <SEP> lithium epoxy hydroxystearate
<tb> Penetration <SEP> three times <SEP> equalized <SEP> 243
<tb> Penetration <SEP> GO <SEP> strokes <SEP> <B> 268 </B>
<tb> Penetration <SEP> 5000 <SEP> strokes <SEP> none <SEP> homogeneous <SEP> grease formation <SEP> 323
<tb> color <SEP> light yellow
<tb> transparency <SEP> transparent
<tb> Bleeding <SEP> none Lithium epoxy hydroxystearate, in contrast to lithium stearate and lithium hydroxystearate, shows lubricating properties in polyglycol.

Claims (1)

PATENTANSPRUCH Lithiumseifenschmierfett, dadurch gekennzeichnet, dass seine Schmierälbasis aus synthetischen. Ölen oder ungesättigten Glyoeriden und dass sein Verdicker zu mindestens<B>90%</B> aus Lithiumepoxyseifen oder Lithium- epoxyhydroxy: PATENT CLAIM Lithium soap grease, characterized in that its lubricant base is made of synthetic. Oils or unsaturated glycerides and that its thickener is at least <B> 90% </B> made of lithium epoxy soaps or lithium epoxyhydroxy: seifen besteht. UNTERANSPRÜCHE 1. Lithiumseifenschmierfett nach Patentanspruch, dadurch gekennzeichnet, dass sein Verdick--r gänzlich aus Lithiumiepoxyseafen und/oder Litlnumepoxyhydroxy- seifen besteht. soaps. SUBClaims 1. Lithium soap grease according to claim, characterized in that its thickener consists entirely of lithium epoxy and / or lithium epoxy hydroxy soaps. 2. Lithiumseifenschmierfett nach Patentanspruch, dadurch gekennzeichnet, dass sein Verdicker neben den epoxygruppenhaltigen Lithiumseifen bis maximal 10 epoxygruppenfreier Lithiumseifen enthält, die sich von gesättigten oder ungesättigten Fettsäuren natürlicher Art ableiten. 2. Lithium soap grease according to claim, characterized in that its thickener contains, in addition to the epoxy group-containing lithium soaps, up to a maximum of 10 epoxy group-free lithium soaps which are derived from saturated or unsaturated fatty acids of a natural type.
CH581063A 1960-07-01 1963-05-09 Lithium soap grease CH439552A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEC21828A DE1122654B (en) 1960-07-01 1960-07-01 Lithium soap grease and process for its manufacture
DEC0027259 1962-06-16

Publications (1)

Publication Number Publication Date
CH439552A true CH439552A (en) 1967-07-15

Family

ID=25969317

Family Applications (2)

Application Number Title Priority Date Filing Date
CH628461A CH410250A (en) 1960-07-01 1961-05-30 Grease
CH581063A CH439552A (en) 1960-07-01 1963-05-09 Lithium soap grease

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH628461A CH410250A (en) 1960-07-01 1961-05-30 Grease

Country Status (5)

Country Link
BE (1) BE633058A (en)
CH (2) CH410250A (en)
DE (1) DE1122654B (en)
GB (2) GB987573A (en)
NL (2) NL294075A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758407A (en) * 1971-11-11 1973-09-11 Exxon Research Engineering Co Lithium soap grease containing monolithium borate
DE2927686A1 (en) * 1979-07-09 1981-02-05 Henkel Kgaa NEW LITHIUM SOAPS AND THEIR USE AS A THICKENING AGENT IN LUBRICANTS OR. GREASES
FR2873712B1 (en) * 2004-07-30 2006-11-24 Christol Grease Soc Par Action PROCESS FOR PRODUCING LUBRICATING GREASE FROM OIL, IN PARTICULAR SUNFLOWER OIL AND GREASE OBTAINED

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900342A (en) * 1956-12-18 1959-08-18 Pure Oil Co Lubricants

Also Published As

Publication number Publication date
NL265504A (en)
CH410250A (en) 1966-03-31
DE1122654B (en) 1962-01-25
BE633058A (en)
GB1030700A (en) 1966-05-25
NL294075A (en)
GB987573A (en) 1965-03-31

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