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CH662127A5 - RESISTANT LUBRICANT COMPOSITIONS AT HIGH TEMPERATURES AND STRONG LOADS. - Google Patents

RESISTANT LUBRICANT COMPOSITIONS AT HIGH TEMPERATURES AND STRONG LOADS. Download PDF

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Publication number
CH662127A5
CH662127A5 CH4513/84A CH451384A CH662127A5 CH 662127 A5 CH662127 A5 CH 662127A5 CH 4513/84 A CH4513/84 A CH 4513/84A CH 451384 A CH451384 A CH 451384A CH 662127 A5 CH662127 A5 CH 662127A5
Authority
CH
Switzerland
Prior art keywords
additive
grease composition
composition according
oil
lubricity
Prior art date
Application number
CH4513/84A
Other languages
German (de)
Inventor
Istvan Dr Cenkvari
Galina Dr Csirova
Ferenc Denes
Gyula Dr Gati
Istvan Dr Kantor
Istvan Kepes
Janos Kis
Ildiko-Rigo Dr Papp
Jozsef Toth
Istvan Dr Valasek
Endre Dr Vamos
Original Assignee
Magyar Szenhidrogenipari
Komaromi Koeolajipari Vallalat
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 Magyar Szenhidrogenipari, Komaromi Koeolajipari Vallalat filed Critical Magyar Szenhidrogenipari
Publication of CH662127A5 publication Critical patent/CH662127A5/en

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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/06Mixtures of thickeners and additives
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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M117/00Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00Lubricating compositions characterised by the additive being an inorganic material
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    • C10M129/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26Carboxylic acids; Salts thereof
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    • C10M131/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen
    • C10M131/14Halogenated waxes
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    • C10M133/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
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    • C10M135/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
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    • C10M145/00Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10Macromolecular 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
    • C10M145/12Macromolecular 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 monocarboxylic
    • C10M145/14Acrylate; Methacrylate
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Description

Die Erfindung betrifft bei hohen Temperaturen und starken Belastungen beständige Schmierfett-Kompositionen. Es ist bekannt, dass die Anforderungen bezüglich der The invention relates to stable grease compositions at high temperatures and high loads. It is known that the requirements regarding

Fettschmierung von Wälzlagern und anderen Schmierstellen hoher Belastungen infolge der Erhöhung der Drehzahl, der Belastung und der Betriebstemperatur bedeutend zugenommen haben. Für die Behandlung solcher Schmierstellen wer-5 den lithiumbasische und Erdalkalimetall-Komplex-Schmier-fette angewandt. Unter diesen sind die Lithium basischen und die Lithium-Calcium basischen Schmierfette wegen ihrer zwischen 125 °C und 135 °C liegenden Übergangspunkte instabil, obwohl ihre Tropfpunkte ziemlich hoch sind. Diese io Schmierfette können daher oberhalb von 120 °C für die Schmierung nicht vorgeschlagen werden (HU-PS 145 374, DE-PS 2 232 201 und US-PS 3 402 615). Grease lubrication of rolling bearings and other lubrication points subject to high loads have increased significantly as a result of the increase in speed, load and operating temperature. For the treatment of such lubrication points, lithium-based and alkaline earth metal complex greases are used. Among them, the lithium base and lithium calcium base greases are unstable because of their transition points between 125 ° C and 135 ° C, although their dropping points are quite high. These io greases can therefore not be proposed for lubrication above 120 ° C (HU-PS 145 374, DE-PS 2 232 201 and US-PS 3 402 615).

Die Lebensdauer der Calcium- und Barium-Komplex Schmierfette ist nicht befriedigend, sie können weitläufig, i5 schwierig und teuer hergestellt werden (HU-PS 163 675 und US-PS 3 156 944). The lifespan of calcium and barium complex greases is not satisfactory, they can be made extensive, difficult and expensive (HU-PS 163 675 and US-PS 3 156 944).

Um diese Schwierigkeiten zu eliminieren, werden neuerlich unter anderen Aluminium-Komplex Schmierfette verwendet. Diese besitzen eine bessere thermische Stabilität als 20 die Lithium-Fette sowie bessere rheologische Eigenschaften und eine viel längere Lebensdauer als die Calcium-Komplex-Fette (US-PS 2 654 710, 2 719 826, 3 511 781, 3 574 111 und 3 591 505). Die Einzelmoleküle der Gelbildner dieser Fette enthalten - ähnlich wie die Komplex-Fette - ein oleophyles 25 und ein oleophobes Anion, die an das Aluminium-Kation gebunden sind. In order to eliminate these difficulties, lubricating greases are again used among other aluminum complex. These have better thermal stability than the lithium fats, as well as better rheological properties and a much longer lifespan than the calcium complex fats (US Pat. Nos. 2,654,710, 2,719,826, 3,511,781, 3,574,111 and 3,591) 505). The individual molecules of the gelling agents of these fats contain - similar to the complex fats - an oleophyles 25 and an oleophobic anion, which are bound to the aluminum cation.

Die bisher bekannten Aluminium-Komplex-Fette können die modernen Schmieranforderungen trotz ihrer vielen Vorteile noch immer nicht befriedigen. Moderne Fette sollen 30 neben einer Konsistenzbeständigkeit und einer thermischen Stabilität auch eine sehr lange, zweckmässig Lebensdauer-Schmierung gewährleistende Oxydationsstabilität, hohe Lasttragfähigkeit (zweckmässig auch E.P. Eigenschaften) und Korrosionsbeständigkeit bzw. zweckmässig korrosions-35 hindernde Fähigkeit aufweisen. The previously known aluminum complex greases, despite their many advantages, still cannot meet the modern lubrication requirements. In addition to resistance to consistency and thermal stability, modern greases should also have a very long, suitably long-term lubrication, oxidation stability, high load-bearing capacity (expediently also E.P. properties) and corrosion resistance or expediently corrosion-preventing ability.

Die bisher bekannten Aluminium-Komplex Schmierfette erfüllen die erwähnten drei Anforderungen nicht gleichzeitig und entsprechen gewöhnlich nur höchstens einer oder zwei der Anforderungen. So erfüllen die Fette gemäss der US-PS 40 2 719 826 nur die Anforderung für die Schmierfähigkeit, die der US-PS 3 725 275 die Anforderung für den Korrosionsschutz und die Fette der US-PS 3 591 505 die Anforderungen bezüglich der Oxydationsstabilität. Die Fette gemäss der US-PS 3 663 726 und 3 620 975 erfüllen nur die Anforderun-45 gen für Oxydationsstabilität völlig, die Anforderungen bezüglich der Hochdruck-Schmierfähigkeit (weiterhin EP-Eigenschaften, d.h. bei hohen Drucken (Extreme Pressure) The previously known aluminum complex greases do not meet the three requirements mentioned at the same time and usually only meet at most one or two of the requirements. Thus, the greases according to US Pat. No. 40 2,719,826 only meet the requirement for lubricity, those of US Pat. No. 3,725,275 meet the requirements for corrosion protection and the greases of US Pat. No. 3,591,505 meet the requirements with regard to oxidation stability. The greases according to US Pat. Nos. 3,663,726 and 3,620,975 only fully meet the requirements for oxidation stability, the requirements for high-pressure lubricity (also EP properties, i.e. at high pressures (Extreme Pressure)

auch gute Schmierfähigkeit) werden nur teilweise erfüllt. Die Korrosions- und korrosionshindernden Eigenschaften dieser 50 Fette sind auch nicht befriedigend. good lubricity) are only partially fulfilled. The corrosion and corrosion-preventing properties of these 50 greases are also unsatisfactory.

Aus dem bisher Beschriebenen ist es zu sehen, dass keine Hinweise auf die den modernsten Anforderungen entsprechenden Fette in den bekannten Patentschriften gefunden werden können. From what has been described so far, it can be seen that no references to the greases corresponding to the most modern requirements can be found in the known patent specifications.

55 Der Gegenstand unserer Erfindung ist es daher, eine bei hohen Temperaturen und starken Belastungen beständige Schmierfett-Komposition zur Verfügung zu stellen, welche die folgenden Eigenschaften aufweist: 55 The object of our invention is therefore to provide a grease composition which is resistant to high temperatures and high loads and has the following properties:

- geeignete mechanische Stabilität, - suitable mechanical stability,

60 - thermische Stabilität, 60 - thermal stability,

- Oxydationsstabilität, - oxidation stability,

- Schmierfähigkeit und EP-Eigenschaften, - lubricity and EP properties,

- ist nicht korrosiv, - is not corrosive,

- korrosionshindernde Wirkung. - Corrosion preventing effect.

Es wurde nun gefunden, dass ein, den oben angegebenen It has now been found that one specified above

Zielen entsprechendes, bei hohen Temperaturen und starken Belastungen beständiges und eine lange Lebensdauer aufweisendes, korrosionshinderndes Schmierfett-Komposition er- To achieve the appropriate corrosion-inhibiting grease composition that is stable at high temperatures and high loads and has a long service life.

65 65

3 3rd

662 127 662 127

halten werden kann, falls dem auf bekannter Weise aus den Grundstoffen der erwähnten Patentschriften hergestellten Aluminium-Komplex-Fett die dem Ziel gemäss ausgewählte, synergistische Kombination der nachstehenden Zusatzstoffe zugegeben wird. 5 can be kept if the aluminum complex fat produced in a known manner from the base materials of the mentioned patents is added to the synergistic combination of the following additives selected according to the target. 5

Das zur Herstellung der Schmierfett-Komposition benötigte Grundöl kann ein geeignetes, in den schmierfähigen Viskositätsbereich fallendes Kohlenwasserstoff-Öl oder ein wasserbeständiges und mit Seifen mischbares synthetisches Schmieröl sein. io The base oil required to produce the grease composition can be a suitable hydrocarbon oil falling within the lubricious viscosity range or a water-resistant synthetic lubricant that is miscible with soaps. io

Die zur Herstellung der als Komplex genannten Gelbildner, das heisst, zur Herstellung der Seifen anwendbaren öllöslichen Säurekomponenten können aliphatische Carbonsäure mit 14 bis 24 Kohlenstoffatomen, deren ungesättigte Analogen, Oxysäuren, analoge chlorierte Carbonsäuren, 15 vorteilhaft aliphatische Carbonsäuren mit 16 bis 18 Kohlenstoffatomen, insbesondere Stearinsäure, sein. The oil-soluble acid components which can be used to prepare the gel formers mentioned as complex, that is to say for the preparation of the soaps, can be aliphatic carboxylic acids having 14 to 24 carbon atoms, their unsaturated analogs, oxy acids, analogous chlorinated carboxylic acids, 15 advantageously aliphatic carboxylic acids having 16 to 18 carbon atoms, in particular stearic acid , be.

Die zur Bildung der als Komplexseife betrachteten basischen Doppelsalze verwendeten zweite Säurekomponente können durch Alkylgruppen mit 1 bis 8 Kohlenstoffatomen 20 substituierte, gegebenenfalls chlorierte oder phosphorhaltige Seitenkette enthaltende aromatische Carbonsäuren, die entsprechenden Oxysäuren, vorteilhaft Alkylbenzoesäuren mit 7 bis 12 Kohlenstoffatomen, insbesondere Benzoesäure sein. The second acid component used to form the basic double salts considered to be complex soap can be aromatic carboxylic acids substituted by alkyl groups with 1 to 8 carbon atoms and optionally containing chlorinated or phosphorus-containing side chains, the corresponding oxyacids, advantageously alkylbenzoic acids with 7 to 12 carbon atoms, in particular benzoic acid.

Die basischen Doppelsalze werden vorteilhaft mit Wasser 2s gebildet. The basic double salts are advantageously formed with water 2s.

Die zur Seifen- bzw. Gelbildung nötigen Aluminium-Grundstoffe können entsprechend den bekannten Verfahren die folgenden sein: Aluminium-isopropylat, cyclisches Alu-minium-isopropoxyd, cyclisches Aluminium-trioxyd-tria-cylat, worin die Acylgruppe aus den oben erwähnten aliphatischen oder aromatischen Carbonsäuren stammen kann. According to the known processes, the aluminum base materials required for soap or gel formation can be the following: aluminum isopropylate, cyclic aluminum isopropoxide, cyclic aluminum trioxide triacylate, in which the acyl group consists of the above-mentioned aliphatic or aromatic Carboxylic acids can originate.

Die basischen Doppelsalze oder analogen Gelbildner können durch die Reaktion der erwähnten Verbindungen in bekannter Weise hergestellt werden. Der Gelbildner kann ausser dem basischen Doppelsalz als gelbildende Hilfsstoffe auch eine mit den obigen Verbindungen analoge Alkylsul-fonsäure mit 1 bis 24 Kohlenstoffatomen im Alkylteil, Aryl-sulfonsäure mit 6 bis 24 Kohlenstoffatomen im Arylteil und Alkylarylsulfonsäure mit 1 bis 24 Kohlenstoffatomen im Alkylteil und mit 6 bis 24 Kohlenstoffatomen im Arylteil, The basic double salts or analogous gelling agents can be prepared in a known manner by the reaction of the compounds mentioned. In addition to the basic double salt, the gelling agent can also contain an alkyl sulfonic acid with 1 to 24 carbon atoms in the alkyl part, aryl sulfonic acid with 6 to 24 carbon atoms in the aryl part and alkylarylsulfonic acid with 1 to 24 carbon atoms in the alkyl part and with 6, which are analogous to the above compounds up to 24 carbon atoms in the aryl part,

sowie deren Alkali-, Erdalkali- oder Aluminiumsalze in der zur Gelbindung nötigen Menge, in 3 bis 25 Massen-% bezogen auf das Gesamtgewicht der Komposition enthalten. and their alkali, alkaline earth or aluminum salts in the amount necessary for yellowing, in 3 to 25% by mass based on the total weight of the composition.

Die erfindungsgemässe Schmierfett-Komposition ist dadurch gekennzeichnet, dass sie, bezogen auf die Gesamtmenge der Komposition, 1 bis 15 Massen-% an einem Antioxydationsmittel, einem organischen oder anorganischen, die Schmierfähigkeit erhöhenden Zusatzstoff und einem korrosionshindernden Zusatzstoff enthält. The grease composition according to the invention is characterized in that, based on the total amount of the composition, it contains 1 to 15% by mass of an antioxidant, an organic or inorganic additive which increases the lubricity and a corrosion-preventing additive.

Das Antioxydationsmittel ist vorzugsweise eine Verbindung der Formel (I) The antioxidant is preferably a compound of formula (I)

30 30th

35 35

40 40

45 45

50 50

S - C - N S - C - N

II II

S S

R R

R R

55 55

Me Me

(I) (I)

n oder (II) n or (II)

S - P S - P

\ \

0 - R 0 - R

0 - R 0 - R

Me Me

(II) (II)

65 65

n worin n für die Zahlen 2 oder 3 steht, n where n stands for the numbers 2 or 3,

R für Alkyl mit 1 bis 24 Kohlenstoffatomen und/oder gegebenenfalls durch Alkyl oder Cycloalkyl mit 1 bis 8 Kohlenstoffatomen substituiertes Aryl und Me für Zink, Antimon oder Zinn steht. R represents alkyl having 1 to 24 carbon atoms and / or aryl optionally substituted by alkyl or cycloalkyl having 1 to 8 carbon atoms, and Me represents zinc, antimony or tin.

Als korrosionshindernden Zusatzstoff setzt man vorzugsweise einen öllöslichen Inhibitor ein, zweckmässig Alkylaryl-sulfonat, Alkylarylamin, deren Metallsalze, mit organischen Säuren gebildete Salze und Ester von Cycloaminen und Aminoalkoholen, sowie Alkalinitrite. An oil-soluble inhibitor is preferably used as the corrosion-preventing additive, advantageously alkylaryl sulfonate, alkylarylamine, their metal salts, salts and esters of cycloamines and amino alcohols formed with organic acids, and alkali metal nitrites.

Der die Schmierfähigkeit erhöhende anorganische Zusatzstoff kann ein weisser Fest-Schmierstoff, Molybdänsulfid oder Flockengraphit sein, und als organischen, die Schmierfähigkeit erhöhenden Zusatzstoff verwendet man mit Vorteil einen EP-Zusatzstoff, zweckmässig öllösliche Sulfonate, Sulfide, Chlorverbindungen, Phosphate und Bleiverbindungen. The lubricant-increasing inorganic additive can be a white solid lubricant, molybdenum sulfide or flake graphite, and an EP additive, advantageously oil-soluble sulfonates, sulfides, chlorine compounds, phosphates and lead compounds, is advantageously used as the organic lubricant-increasing additive.

Ebenfalls kann die erfindungsgemässe Schmierfett-Komposition zusätzlich noch einen die Theologischen Eigenschaften verbessernden Zusatzstoff, einen die Synärese vermindernden bzw. die Kolloidstabilität erhöhenden Zusatzstoff und einen die Hydrophobität erhöhenden Zusatzstoff enthalten. The lubricating grease composition according to the invention can also additionally contain an additive which improves the theological properties, an additive which reduces syneresis or which increases colloid stability, and an additive which increases the hydrophobicity.

Bevorzugte Verbindungen, welche in der erfindungs-gemässen Schmierfett-Komposition enthalten sein können, sind Zink-dialkyl-dithiophosphate, Zink-diaryldithiophos-phate, Zink-dialkyl-dithiocarbamate, Antimondialkyl-dithiocarbamate, Cadmium-dialkyl-dithiocarbamate sowie analoge Alkylaryl-, Diaryl-, Dicycloaryl-Schwermetallcarba-mate. Diese Verbindungen werden zweckmässig in einer Menge von 0,1 bis 5 Massen-% angewandt. Preferred compounds which may be contained in the lubricating grease composition according to the invention are zinc dialkyl dithiophosphates, zinc diaryldithiophosphates, zinc dialkyl dithiocarbamates, antimondialkyl dithiocarbamates, cadmium dialkyl dithiocarbamates and analogous alkylaryl carbamates -, Dicycloaryl heavy metal carbamates. These compounds are advantageously used in an amount of 0.1 to 5 mass%.

Als bevorzugte, die EP-Wirkung und die Schmierfähigkeit erhöhende organische Zusatzstoffe seien genannt: The preferred organic additives which increase the EP effect and the lubricity are:

Alkyl-, Cycloalkyl- und Arylsulfide, -disulfide und -poly-sulfide, chlorierte Alkane und Cycloalkane, sowie Terpene, in der Kette chlorierte Alkylaryl-Derivate, Alkyl- oder Aryl-phosphate, geschwefelte Fettsäuren, Fettalkohole, Fette oder Pflans-Öle, Alkyl-xanthogenate, Alkylarylmercaptide und analoge Schwefel-, chlor- und phosphorhaltige Verbindungen, gegebenenfalls Selenide, Bleinaphthenat, Antimonnaph-thenat und Blei-dialkyl-dithiocarbamate. Diese Verbindungen können in einer Menge von 0,1 bis 5 Massen-% eingesetzt werden. Alkyl, cycloalkyl and aryl sulfides, disulfides and polysulfides, chlorinated alkanes and cycloalkanes, and also terpenes, chain-chlorinated alkylaryl derivatives, alkyl or aryl phosphates, sulfurized fatty acids, fatty alcohols, fats or vegetable oils, Alkyl xanthates, alkylaryl mercaptides and analogous compounds containing sulfur, chlorine and phosphorus, optionally selenides, lead naphthenate, antimony naphthenate and lead dialkyl dithiocarbamates. These compounds can be used in an amount of 0.1 to 5 mass%.

Bevorzugte, die Schmierfähigkeit erhöhende und EP-Wirkung aufweisende, suspendierte anorganische Stoffe sind: Preferred suspended inorganic substances which increase the lubricity and have EP action are:

Elementarschwefel, Graphit, Molybdändisulfid, Wol-framdisulfid, beziehungsweise sogenannte weisse Fest-schmier-Stoffe, wie z.B. Calciumoxyd, Calciumhydroxyd, Calciumcarbonat, Calciumacetat, Calciumphosphate und -polyphosphate, sowie die analogen Magnesium-Verbindungen, natürlicher und organophyler Bentonit, Titandioxyd, Zinkoxyd, Bleioxyd und analoge Silikate, Colbalt- und Nik-kelsalze, Metallpulver. Diese können in einer Menge von 0,5 bis 10 Massen-% angewandt werden. Elemental sulfur, graphite, molybdenum disulfide, tungsten disulfide, or so-called white solid lubricants, such as Calcium oxide, calcium hydroxide, calcium carbonate, calcium acetate, calcium phosphates and polyphosphates, as well as the analog magnesium compounds, natural and organophyler bentonite, titanium dioxide, zinc oxide, lead oxide and analog silicates, colbalt and nickel salts, metal powder. These can be used in an amount of 0.5 to 10 mass%.

Bevorzugte korrosionshindernde Zusatzstoffe sind: Preferred corrosion-preventing additives are:

Alkyl-, Alkylaryl- und Arylsulfate und sulfonate, deren Alkali-, Erdalkalisalze und Erdalkalicarboxylate, Dicarbon-säuren, Aryl- und Alkylarylamine, die mit organischen Säuren gebildeten normalen und -oniumsalze derselben, Pyridine und Alkylpyridine, sowie deren analogen Derivate, Natriumnitrit, Natriumchromat, organische und anorganische Salze von Dicyclohexylamin, Aminoalkohole, deren Salze mit organischen Säuren, sowie deren Ester, z.B. Triethanol-aminoleate. Diese können in einer Menge von 0,05 bis 5 Massen-% enthalten sein. Alkyl, alkylaryl and aryl sulfates and sulfonates, their alkali metal, alkaline earth metal salts and alkaline earth metal carboxylates, dicarboxylic acids, aryl and alkylarylamines, their normal and onium salts formed with organic acids, pyridines and alkyl pyridines, and their analogous derivatives, sodium nitrite, sodium chromate , organic and inorganic salts of dicyclohexylamine, amino alcohols, their salts with organic acids, and their esters, for example Triethanol aminoleates. These can be contained in an amount of 0.05 to 5 mass%.

Bevorzugte, die Synärese vermindernde und die Kolloidstabilität erhöhende Zusatzstoffe sind ein Molgewicht von Preferred additives which reduce syneresis and increase colloid stability are a molecular weight of

662 127 662 127

4 4th

1000 bis 3 000 000 aufweisende, öllösliche Polyalkene (Polyäthylen, Polypropylen, Polybutylen und Isobutylen, Poly-alkylmethacrylate, Polystyrol, Polystyrol-Divinylbenzol-Copolymere usw.). Diese können in einer Menge von 0,01 bis 3 Massen-% enthalten sein. 1,000 to 3,000,000 oil-soluble polyalkenes (polyethylene, polypropylene, polybutylene and isobutylene, polyalkyl methacrylates, polystyrene, polystyrene-divinylbenzene copolymers, etc.). These can be contained in an amount of 0.01 to 3 mass%.

Bevorzugte, die Hydrophobität erhöhende Zusatzstoffe sind vor allem Silikone und analoge Verbindungen, Alkyl-oder Arylsiloxane sowie organische Silikate. Die Verbindungen können in einer Menge von 0,01 bis 5 Massen-% enthalten sein. Preferred additives which increase the hydrophobicity are above all silicones and analogous compounds, alkyl or arylsiloxanes and organic silicates. The compounds may be contained in an amount of 0.01 to 5 mass%.

In den weiter oben aufgezählten Verbindungen weist die Alkylgruppe 1 bis 24 Kohlenstoffatome auf, die Arylgruppe hat 6 bis 24 Kohlenstoffatome, und sie ist gegebenenfalls durch eine Alkylgruppe oder Cycloalkylgruppe mit 1 bis 8 Kohlenstoffatomen substituiert. In the compounds listed above, the alkyl group has 1 to 24 carbon atoms, the aryl group has 6 to 24 carbon atoms, and is optionally substituted by an alkyl group or cycloalkyl group having 1 to 8 carbon atoms.

Um den gewünschten Effekt zu erreichen, sollen mindestens eine Verbindung aus der Gruppe der Antioxydantien, eine Verbindung aus der Gruppe der Korrosionsinhibitoren und eine aus der Gruppe der die Schmierfähigkeit erhöhenden und EP-Wirkung aufweisenden Zusatzstoffen in der Komposition anwesend sein. Es können aber alle Zusatzstoffe, d.h. eine oder mehrere (Polymere, Silikone usw.) der hier erwähnten drei Gruppen in der Komposition enthalten sein, wenn dies zur Erreichung des erwünschten Zieles notwendig ist. In order to achieve the desired effect, at least one compound from the group of antioxidants, one compound from the group of corrosion inhibitors and one from the group of additives which increase lubricity and have EP action should be present in the composition. However, all additives, i.e. One or more (polymers, silicones, etc.) of the three groups mentioned here may be included in the composition if this is necessary to achieve the desired goal.

Das Grundfett der vorher beschriebenen Komposition kann auf bekannte Weise hergestellt werden. Danach werden gewöhnlich die Zusatzstoffe in der Kühlungsphase der Herstellung des Fettes zugemischt. Die erhaltene Komposition kann dann völlig abgekühlt, homogenisiert, abgefüllt und konfektioniert werden. The basic fat of the composition described above can be produced in a known manner. After that, the additives are usually mixed in during the cooling phase of the production of the fat. The resulting composition can then be completely cooled, homogenized, filled and packaged.

Die maximale Temperatur, bei welcher die Zusatzstoffe zugemischt werden dürfen, ist der Zersetzungspunkt einer der Komponenten. The maximum temperature at which the additives can be admixed is the decomposition point of one of the components.

Die Herstellung der erfindungsgemässen Komposition wird durch die nachstehenden Beispiele näher erläutert, ohne die Erfindung auf die in den Beispielen gezeigten Komponenten oder Konzentrationen einzuschränken. Die %-Anga-ben bedeuten immer Massen-%. The preparation of the composition according to the invention is explained in more detail by the examples below, without restricting the invention to the components or concentrations shown in the examples. The% figures always mean% by mass.

Beispiel 1 example 1

Zusammensetzung des Grundfettes: Composition of the basic fat:

4,6% 4.6%

Stearinsäure Stearic acid

2,0% 2.0%

Benzoesäure Benzoic acid

3,3% 3.3%

Aluminiumisopropylat (ALIP) Aluminum isopropylate (ALIP)

0,3% 0.3%

Wasser water

89,8% 89.8%

raffiniertes und entparaffiniertes Gemisch refined and dewaxed mixture

eines Schweröles und eines Rückstandsöls a heavy oil and a residual oil

in einem Verhältnis von 1:1 in a ratio of 1: 1

100,0% 100.0%

In dem 2/3 des Öles wird das zerkleinerte Aluminium-isopropylat bei 70 bis 80 °C gelöst. Danach wird die Stearinsäure zugegeben und das Gemisch auf 120 °C erwärmt. Das Gemisch wird unter Rühren etwa 1 Stunde bei dieser Temperatur gehalten. In dem zurückgebliebenen Öl wird die Benzoesäure bei 100 bis 110 °C gelöst und die Lösung zu dem früher erhaltenen Reaktionsgemisch zugegeben. Das so erhaltene Reaktionsgemisch wird 1 Stunde lang bei 120 bis 125 °C gehalten, danach wird es auf 80 bis 90 °C abgekühlt, wonach unter intensivem Rühren langsam das Wasser zugegeben wird. Nach Zugabe des Wassers wird die Temperatur kontinuierlich auf 210 °C erhöht und das Reaktionsgemisch 20 Minuten bei dieser Temperatur gehalten, danach auf 70 bis 80 CC abgekühlt. Zu dem abgekühlten Fett werden die in den nachstehenden Beispielen angegebenen Zusatzstoffe zugegeben, danach wird das Fett egalisiert, homogenisiert und entlüftet. The crushed aluminum isopropylate is dissolved in 2/3 of the oil at 70 to 80 ° C. The stearic acid is then added and the mixture is heated to 120.degree. The mixture is kept at this temperature with stirring for about 1 hour. The benzoic acid is dissolved in the remaining oil at 100 to 110 ° C. and the solution is added to the reaction mixture obtained earlier. The reaction mixture thus obtained is kept at 120 to 125 ° C for 1 hour, then it is cooled to 80 to 90 ° C, after which the water is slowly added with vigorous stirring. After the water has been added, the temperature is raised continuously to 210 ° C. and the reaction mixture is kept at this temperature for 20 minutes, then cooled to 70 to 80 ° C. The additives specified in the examples below are added to the cooled fat, after which the fat is leveled, homogenized and deaerated.

Zu 95 kg des nach den oben beschriebenen hergestellten Grundfettes werden die folgenden Zusatzstoffe zugegeben: The following additives are added to 95 kg of the base fat produced according to the above-described:

Zink-dialkyl-dithiophosphat (M-201) 2,5 kg Blei-antimon-dialkyl-dithiocarbamat Zinc dialkyl dithiophosphate (M-201) 2.5 kg lead antimony dialkyl dithiocarbamate

(Vanlube-674) 1,5 kg (Vanlube-674) 1.5 kg

Barium-dinonyl-naphthalinsulfonat 0,5 kg Barium dinonyl naphthalenesulfonate 0.5 kg

Polyisobutylen 0,5 kg Polyisobutylene 0.5 kg

Beispiel 2 Example 2

Zu 94 kg des nach Beispiel 1 erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: The following additives are added to 94 kg of the base fat obtained according to Example 1:

Zink-dialkyl-dithiophosphat (M-201) 2,5 kg Zinc dialkyl dithiophosphate (M-201) 2.5 kg

Dibenzyldisulfid 2,0 kg Dibenzyl disulfide 2.0 kg

Dicyclohexylaminoleat 1,0 kg Dicyclohexylaminoleate 1.0 kg

Polycetylmethacrylat 0,5 kg Polycetyl methacrylate 0.5 kg

Beispiel 3 Example 3

Zu 95 kg des nach Beispiel 1 erhaltenen Grundfettes wer den die folgenden Zusatzstoffe zugegeben: The following additives are added to 95 kg of the base fat obtained according to Example 1:

Antimon-dialkyl-dithiocarbamat Antimony dialkyl dithiocarbamate

(Vanlube-73) 2,2 kg geschwefelte Ölsäure 1,0 kg (Vanlube-73) 2.2 kg sulfurized oleic acid 1.0 kg

Trikresylphosphat 0,25 kg Tricresyl phosphate 0.25 kg

Molybdändisulfid 1,0 kg Molybdenum disulfide 1.0 kg

Triethanolamin 0,5 kg Triethanolamine 0.5 kg

Phenyl-2-naphtylamin 0,05 kg Phenyl-2-naphthylamine 0.05 kg

Beispiel 4 Example 4

Zu 96 kg des nach Beispiel 1 erhaltenen Grundfettes wer den die folgenden Zusatzstoffe zugegeben: The following additives are added to 96 kg of the base fat obtained according to Example 1:

1:1 Gemisch von Zink-dialkyl-dithio-phosphat (M-201) und Zink-diamyl- 1: 1 mixture of zinc dialkyl dithiophosphate (M-201) and zinc diamyl

dithiophosphat 2,4 kg dithiophosphate 2.4 kg

Chlorparaffin 0,5 kg Chlorine paraffin 0.5 kg

Calciumhydroxyd 0,80 kg Calcium hydroxide 0.80 kg

Natriumnitrit 0,25 kg Sodium nitrite 0.25 kg

Silikonöl 0,05 kg Silicone oil 0.05 kg

Beispiel 5 Zusammensetzung des Grundfettes: Example 5 Composition of the basic fat:

4,9% Stearinsäure 1,7% Benzoesäure 4.9% stearic acid 1.7% benzoic acid

3,6%) cyclisches Aluminiumisopropoxyd 89,8% SAE 40 Basisöl 3.6%) cyclic aluminum isopropoxide 89.8% SAE 40 base oil

In 2/3 des Grundöles werden die Stearinsäure und die Benzoesäure bei 70 bis 80 C gelöst, die Temperatur wird au 100 °C erhöht und das Aluminiumisopropoxyd gelöst in der zurückgebliebenen '/3 Öl wird zugegeben. Die Temperatur wird unter intensivem Rühren und Zirkulation auf 205 C erhöht, wonach das Reaktionsgemisch mit konstanter Geschwindigkeit auf 70 bis 80 C abgekühlt wird. Zu dem abge kühlten Grundöl werden die nachstehend angegebenen Zusatzstoffe zugegeben, danach wird das Fett homogenisiert und entlüftet. The stearic acid and the benzoic acid are dissolved in 2/3 of the base oil at 70 to 80 C, the temperature is raised to 100 ° C and the aluminum isopropoxide dissolved in the remaining '/ 3 oil is added. The temperature is increased to 205 ° C. with vigorous stirring and circulation, after which the reaction mixture is cooled to 70 to 80 ° C. at a constant rate. The additives specified below are added to the cooled base oil, after which the fat is homogenized and deaerated.

Zu 97,0 kg des nach den oben beschriebenen erhaltenen Grundöles werden die folgenden Zusatzstoffe zugegeben: The following additives are added to 97.0 kg of the base oil obtained as described above:

Blei-dialkyl-dithiocarbamat Lead dialkyl dithiocarbamate

(Vanlube-71) 2,0 kg (Vanlube-71) 2.0 kg

Bleistearat 0,5 kg Pencil stearate 0.5 kg

Barium-dinonyl-naphthalinsulfonat 0,5 kg Barium dinonyl naphthalenesulfonate 0.5 kg

5 5

10 10th

15 15

20 20th

25 25th

30 30th

35 35

40 40

45 45

50 50

55 55

60 60

65 65

5 5

662 127 662 127

Beispiel 6 Example 6

Zu 98 kg des nach Beispiel 5 erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: The following additives are added to 98 kg of the base fat obtained according to Example 5:

Zink-dialkyl-dithiophosphat (M-201 ) 1,0 kg Bariumsulfonat 1,0 kg Zinc dialkyl dithiophosphate (M-201) 1.0 kg barium sulfonate 1.0 kg

Beispiel 7 Zusammensetzung des Grundfettes: Example 7 Composition of the basic fat:

2,43% Stearinsäure 0,84% Benzoesäure 2.43% stearic acid 0.84% benzoic acid

1,81% cyclisches Aluminiumisopropoxyd 47,50% SAE 50 Basisöl 47,42% Bright Stock (P-28) 1.81% cyclic aluminum isopropoxide 47.50% SAE 50 base oil 47.42% bright stock (P-28)

Die Herstellungstechnologie ist die gleiche wie im Beispiel 5. Zu 96 kg des erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: The production technology is the same as in Example 5. The following additives are added to 96 kg of the base fat obtained:

Antimon-dialkyl-dithiocarbamat Antimony dialkyl dithiocarbamate

(Vanlube-73) 2,5 kg (Vanlube-73) 2.5 kg

Bleistearat 1,0 kg Pencil stearate 1.0 kg

Barium-dinonyl-naphthalinsulfonat 0,5 kg Barium dinonyl naphthalenesulfonate 0.5 kg

Beispiel 8 Zusammensetzung des Grundfettes: Example 8 Composition of the basic fat:

0,3% Stearinsäure 1,8% Benzoesäure 0.3% stearic acid 1.8% benzoic acid

11,2% Aluminium-triacylat (RALOX 35) 11.2% aluminum triacylate (RALOX 35)

86,7% Basisöl 86.7% base oil

Die Herstellungstechnologie ist die gleiche wie im Beispiel 5. Zu 96,5 kg des erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: The production technology is the same as in Example 5. The following additives are added to 96.5 kg of the base fat obtained:

Blei-diamyl-dithiocarbamat Lead diamyl dithiocarbamate

Bleistearat Pencil stearate

Bariumsulfonat Barium sulfonate

2,0 kg 0,5 kg 1,0 kg 2.0 kg 0.5 kg 1.0 kg

Beispiel 9 Example 9

Zu 87 kg des nach Beispiel erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: The following additives are added to 87 kg of the base fat obtained according to the example:

5 Graphitflocken 10,0 kg 5 graphite flakes 10.0 kg

Zink-dialkyl-dithiocarbamat (M-201) 2,45 kg Zinc dialkyl dithiocarbamate (M-201) 2.45 kg

Blei-dinonyl-naphthalinsulfonat 0,5 kg Lead dinonyl naphthalenesulfonate 0.5 kg

Dialkylsiloxan 0,05 kg Dialkylsiloxane 0.05 kg

Beispiel A Example A

Zu 96 kg des nach Beispiel 1 erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: The following additives are added to 96 kg of the base fat obtained according to Example 1:

15 geschwefelte Ölsäure Blei-dialkyl-dithiocarbamat (Vanlube-71) 15 sulfurized oleic acid lead dialkyl dithiocarbamate (Vanlube-71)

2,0 kg 2,0 kg 2.0 kg 2.0 kg

Beispiel B Example B

20 Zu 96,6 kg des nach Beispiel 5 erhaltenen Grundfettes werden die folgenden Zusatzstoffe zugegeben: 20 The following additives are added to 96.6 kg of the base fat obtained according to Example 5:

1:1 Gemisch von Zink-dialkyl-dithio-phosphat (M-201) und Zink-diamyl- 1: 1 mixture of zinc dialkyl dithiophosphate (M-201) and zinc diamyl

25 dithiophosphat 2,4 kg 25 dithiophosphate 2.4 kg

Triethanol-amin-olea tester 1,0 kg Triethanol amine olea tester 1.0 kg

Wenn die Eigenschaften der Fette gemäss den Beispielen 1 bis 9 bzw. A und B verglichen werden, so kann man es 30 feststellen, dass in Abwesenheit einer der drei wichtigsten Zusatzstoffe unbefriedigende Korrosionsbeständigkeit oder EP-Eigenschaften erhalten werden. If the properties of the greases according to Examples 1 to 9 or A and B are compared, it can be seen that in the absence of one of the three most important additives unsatisfactory corrosion resistance or EP properties are obtained.

35 35

Eigenschaften der Schmierfette Properties of the greases

Beispiel example

Penetrationsbereich Penetration area

Oxydationsstabilität Oxidation stability

Stufe der Korrosions Level of corrosion

Timken OK Bela Timken OK Bela

Nr. No.

bei 25 °C, 0,1 mm at 25 ° C, 0.1 mm

Druckabfall nach 400 Pressure drop after 400

beständigkeit stung resistance stung

MSZ KGST 755 MSZ KGST 755

St N/mm2 MSZ 11705 St N / mm2 MSZ 11705

DIN 51802 DIN 51802

N, ASTM D 2782 N, ASTM D 2782

1 1

265-295 265-295

41 41

0-0 0-0

220 220

2 2nd

265-295 265-295

55 55

0-1 0-1

200 200

3 3rd

265-295 265-295

48 48

0-1 0-1

200 200

4 4th

265-295 265-295

69 69

0-1 0-1

180 180

5 5

265-295 265-295

48 48

0-0 0-0

200 200

6 6

265-295 265-295

69 69

0-0 0-0

110 110

7 7

355-385 355-385

69 69

0-0 0-0

220 220

8 8th

265-295 265-295

48 48

0-0 0-0

200 200

9 9

265-295 265-295

69 69

1-2 1-2

220 220

A5B A5B

265-295 265-295

83 83

4-5 4-5

220 220

265-295 265-295

62 62

2-3 2-3

65 65

C C.

Claims (8)

662 127662 127 1. Bei hohen Temperaturen und starken Belastungen beständige Schmierfett-Komposition, dadurch gekennzeichnet, dass sie, bezogen auf die Gesamtmenge der Komposition, 1 bis 15 Massen-% an einem Antioxydationsmittel, einem organischen oder anorganischen, die Schmierfähigkeit erhöhenden Zusatzstoff und einem korrosionshindernden Zusatzstoff enthält. 1. Grease composition resistant at high temperatures and high loads, characterized in that it contains, based on the total amount of the composition, 1 to 15% by mass of an antioxidant, an organic or inorganic additive which increases the lubricity and a corrosion-preventing additive . 2. Schmierfett-Komposition nach Anspruch 1, dadurch gekennzeichnet, dass das Antioxydationsmittel eine Verbindung der Formel (I) 2. Grease composition according to claim 1, characterized in that the antioxidant is a compound of formula (I) S S C C. S S - 17 - 17th ï.'e ï.'e (I) (I) n oder (II) n or (II) 2 2nd PATENTANSPRÜCHE PATENT CLAIMS 3. Schmierfett-Komposition nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der korrosionshindernde Zusatzstoffein öllöslicher Inhibitor ist, zweckmässig Alkylarylsul-fonat, Alkylarylamin, deren Metallsalze, mit organischen Säuren gebildete Salze und Ester von Cycloaminen und Aminoalkoholen, sowie Alkalinitrite. 3. Grease composition according to claim 1 or 2, characterized in that the corrosion-preventing additive is an oil-soluble inhibitor, advantageously alkylarylsulfonate, alkylarylamine, their metal salts, salts formed with organic acids and esters of cycloamines and aminoalcohols, and alkali metal nitrites. 3 - P 3-p ||\ || \ 0 - R 0 - R 0 - R 0 - R *e (Ii) * e (II) J n worin n für die Zahlen 2 oder 3 steht, J n where n represents the numbers 2 or 3, R für Alkyl mit 1 bis 24 Kohlenstoffatomen und/oder gegebenenfalls durch Alkyl oder Cycloalkyl mit 1 bis 8 Kohlenstoffatomen substituiertes Aryl und Me für Zink, Antimon oder Zinn steht, ist. R is alkyl having 1 to 24 carbon atoms and / or aryl optionally substituted by alkyl or cycloalkyl having 1 to 8 carbon atoms and Me is zinc, antimony or tin. 4. Schmierfett-Komposition nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der anorganische, die Schmierfähigkeit erhöhende Zusatzstoff ein weisser Fest-Schmierstoff, Molybdändisulfid oder Flockengraphit ist. 4. Grease composition according to one of claims 1 to 3, characterized in that the inorganic, the lubricity-increasing additive is a white solid lubricant, molybdenum disulfide or flake graphite. 5. Schmierfett-Komposition nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der organische, die Schmierfähigkeit erhöhende Zusatzstoff ein EP-Zusatzstoff ist, zweckmässig öllösliche Sulfonate, Sulfide, Chlorverbindungen, Phosphate und Bleiverbindungen. 5. Grease composition according to one of claims 1 to 4, characterized in that the organic, lubricity-increasing additive is an EP additive, expediently oil-soluble sulfonates, sulfides, chlorine compounds, phosphates and lead compounds. 6. Schmierfett-Komposition nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie zusätzlich noch einen die Theologischen Eigenschaften verbessernden Zusatzstoff, einen die Synärese vermindernden bzw. die Kolloidstabilität erhöhenden Zusatzstoff und einen die Hydrophobität erhöhenden Zusatzstoff enthält. 6. Grease composition according to one of claims 1 to 5, characterized in that it additionally contains an additive that improves the theological properties, an additive that reduces syneresis or an increase in colloid stability, and an additive that increases hydrophobicity. 7. Schmierfett-Komposition nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der die Synärese vermindernde und die Kolloidstabilität erhöhende Zusatzstoff ein öllösliches Polymer oder Kopolymer ist. 7. Grease composition according to one of claims 1 to 6, characterized in that the additive reducing the syneresis and increasing the colloid stability is an oil-soluble polymer or copolymer. 8. Schmierfett-Komposition nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der die Hydrophobität erhöhende Zusatzstoff ein Silikon-Derivat ist. 8. Grease composition according to one of claims 1 to 6, characterized in that the additive which increases the hydrophobicity is a silicone derivative.
CH4513/84A 1983-09-22 1984-09-20 RESISTANT LUBRICANT COMPOSITIONS AT HIGH TEMPERATURES AND STRONG LOADS. CH662127A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU833266A HU192197B (en) 1983-09-22 1983-09-22 Heavy duty grease compositions resistant to high temperature

Publications (1)

Publication Number Publication Date
CH662127A5 true CH662127A5 (en) 1987-09-15

Family

ID=10963395

Family Applications (1)

Application Number Title Priority Date Filing Date
CH4513/84A CH662127A5 (en) 1983-09-22 1984-09-20 RESISTANT LUBRICANT COMPOSITIONS AT HIGH TEMPERATURES AND STRONG LOADS.

Country Status (3)

Country Link
CH (1) CH662127A5 (en)
DE (1) DE3431585A1 (en)
HU (1) HU192197B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5385682A (en) * 1990-05-15 1995-01-31 Exxon Research & Engineering Co. Grease composition
JP2989311B2 (en) * 1991-04-30 1999-12-13 協同油脂株式会社 Grease composition for constant velocity joints
US5358664A (en) * 1992-10-15 1994-10-25 Caschem, Inc. Gelled oil compositions
RU2011109039A (en) * 2008-08-11 2012-09-20 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) LUBRICANT COMPOSITION
RU2738108C1 (en) * 2020-07-27 2020-12-08 Общество с ограниченной ответственностью Элмашпром Electroconductive lubricant for integrated thread protection in earthing switches (versions)

Also Published As

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DE3431585A1 (en) 1985-04-11
HU192197B (en) 1987-05-28

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