DE2627226C2 - - Google Patents
Info
- Publication number
- DE2627226C2 DE2627226C2 DE2627226A DE2627226A DE2627226C2 DE 2627226 C2 DE2627226 C2 DE 2627226C2 DE 2627226 A DE2627226 A DE 2627226A DE 2627226 A DE2627226 A DE 2627226A DE 2627226 C2 DE2627226 C2 DE 2627226C2
- Authority
- DE
- Germany
- Prior art keywords
- acid
- oils
- substituted
- carbon atoms
- radical
- 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
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
- C10M135/34—Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon only
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
- C10M2203/022—Well-defined aliphatic compounds saturated
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
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- C10M2203/024—Well-defined aliphatic compounds unsaturated
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/04—Well-defined cycloaliphatic compounds
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- C10M2207/283—Esters of polyhydroxy compounds
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- C10M2207/286—Esters of polymerised unsaturated acids
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- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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- C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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- C10M2209/084—Acrylate; Methacrylate
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Description
Das Problem des Schrumpfens von Dichtungen, besonders Dichtun
gen aus elastomeren Kunststoffen, in Getrieben, z. B. automati
schen Getrieben in Motorfahrzeugen, beim Kontakt mit Arbeits
flüssigkeiten und Schmiermitteln ist von großer Bedeutung, da
dieses Schrumpfen das Auslaufen der Arbeitsflüssigkeit verur
sacht, was zu falscher Funktion oder zum völligen Defekt des
Getriebes führen kann. Die Bezeichnung "Arbeitsflüssigkeit" be
deutet hier u. a. Flüssigkeiten zur Energieübertragung, wie Hy
draulikflüssigkeiten, Flüssigkeiten in automatischen Getrieben
oder zum Wärmeaustausch. Um dieses Problem auszuschalten, wird
der Arbeitsflüssigkeit bzw. dem Schmiermittel gewöhnlich ein
Zusatz beigegeben, dessen Anwesenheit zum Anschwellen der Dich
tungen führt. Der Stand der Technik kennt eine Anzahl derartiger
Zusätze, aber ihre Verwendung hat verschiedene Nachteile; z. B.
sind viele von ihnen giftig. Außerdem müssen sie der Arbeits
flüssigkeit bzw. dem Schmiermittel oft in unerwünscht großer
Menge zugesetzt werden.
Die Verwendung verschiedener Sulfolanderivate als Schmier
mittelzusätze bzw. als Zwischenprodukte zur Herstellung
sulfurierter oder sulfatierter Produkte, die sich als
Zusätze in Schmierölen, Fetten und als Detergentien eignen,
ist in den US-PSen 34 07 140, 24 92 927, 24 83 219,
24 65 912, 24 61 339 und 25 57 673 beschrieben. Eine
spezielle Eignung dieser Stoffe als Dichtungsquellmittel
wird dabei nicht angegeben.
Der Erfindung liegt die Aufgabe zugrunde, bestimmte Zu
sätze zu Arbeitsflüssigkeiten und Schmiermittel vorzu
schlagen, um ein Anschwellen der Dichtungen zu verursachen,
ohne daß die vorstehend genannten Nachteile auftreten.
Die Lösung der Aufgabe beruht auf dem überraschenden
Befund, daß durch den Zusatz von bestimmten substitu
ierten Sulfolanen die Schrumpfung von Dichtungen verhin
dert oder auf ein Mindestmaß beschränkt werden kann. Die
Erfindung betrifft somit in den Ansprüchen gekenn
zeichneten Gegenstand.
Die erfindungsgemäß verwendeten substituierten Sulfolane sind
bekannt. Sie können durch Umsetzung von 3-Sulolen oder dessen
substituierten Derivaten mit einer organischen Hydroxyver
bindung, gewöhnlich einem Alkohol, hergestellt werden. Die
ses Verfahren ist z. B. in der US-PS 23 93 925 und im Daten
blatt DS-58:3 der Shell Development Company mit dem Titel
"3-Sulfolen" beschrieben. Die 3-Sulfolene können durch
Umsetzung von Schwefeldioxid mit einem konjugierten Dien,
wie Butadien oder Isopren, hergestellt werden.
Die Arbeitsflüssigkeiten und Schmiermittel beste
hen aus zwei Komponenten. Die eine Komponente ist eine ölige
Flüssigkeit mit schmierender Viskosität. Solche Flüssigkeiten
sind z. B. natürlich und synthetische Öle und deren Gemische.
Vorzugsweise sind es Öle, die als Kurbelgehäuseschmieröle in
funken- und kompressionsgezündeten Verbrennungsmotoren wie Auto-
und Lastkraftwagenmotoren, Zweitaktmotoren, Flugzeugkolbenmoto
ren, Dieselmotoren in Schiffen und Lokomotiven oder Gasmotoren,
Flugzeugstrahlturbinen, stationären Kraftmaschinen und Turbinen
verwendet werden. Ebenfalls geeignet sind die Grundkomponenten
der Schmiermittel für automatische Getriebe, Zahnradgetriebe,
Metallbearbeitungsöle, Hydraulikflüssigkeiten und andere Öle
und Schmiermittel.
Spezielle Beispiele für natürliche Öle sind tierische und
pflanzliche Öle, z. B. Rizinusöl und Specköl oder Öle aus Petro
leum und mit Lösungsmitteln oder Säure behandelte Mineralschmier
öle auf Paraffin-, Naphthen- oder gemischter Paraffin- und
Naphthenbasis. Öle mit schmierender Viskosität, die aus Stein
kohle oder Ölschiefer stammen, sind ebenfalls verwendbar.
Spezielle Beispiele für synthetische Schmieröle sind Öle auf der
Basis von Kohlenwasserstoffen und halogensubstituierten Kohlen
wasserstoffen, beispielsweise die Polymerisate und Mischpolymeri
sate von Olefinen, wie Polybutene, Polypropylene, Propylen-iso
butylen-Copolymerisate, chlorierte Polybutylene, Poly-(1-hexene),
Poly-(1-octene), Poly-1(-decene) und deren Gemische, Alkylben
zole, z. B. Dodecylbenzole, Tetradecylbenzole, Dinonylbenzole,
Di-(2-äthylhexyl)-benzole, Polyphenyle, wie Biphenyle, Terphe
nyle, alkylierte Polyphenyle, alkylierte Diphenyläther und alkyl
lierte Diphenylsulfide sowie deren Derivate, Analoge und Homo
loge.
Weitere spezielle Beispiele für bekannte synthetische Öle sind
die Polymerisate und Copolymerisate von Alkylenoxiden und deren
Derivate, deren endständige Hydroxylgruppen durch Verestern oder
Veräthern modifiziert wurden. Beispiele dafür sind Öle aus Po
lymerisaten von Äthylenoxid oder Propylenoxid, die Alkyl- oder
Aryläther dieser Polyoxyalkylenpolymerisate, z. B. Polyisopro
pylenglykolmethyläther mit einem durchschnittlichen Molekularge
wicht von 1000, Polyäthylenglykoldiphenyläther mit einem Mole
kulargewicht von 500 bis 1000, Polypropylenglykoldiäthyläther
mit einem Molekulargewicht von 1000 bis 1500 oder ihre Ester
mit Mono- oder Polycarbonsäuren, wie die Essigsäureester, die
gemischten C₃-C₈-Fettsäureester oder die C₁-C₃-Oxosäurediester
des Tetraäthylenglykols.
Weitere spezielle Beispiele für synthetische Öle sind die Ester
von Dicarbonsäuren, wie Phthalsäure, Bernsteinsäure, Alkyl- und
Alkenylbernsteinsäuren, Maleinsäure, Azelainsäure, Korksäure,
Sebacinsäure, Fumarsäure, Adipinsäure, dimere Linolsäure, Malon
säure, Alkyl- und Alkenylmalonsäuren, mit den verschiedensten
Alkoholen, wie Butanol, Hexanol, Dodecanol, 2-Äthylhexanol,
Äthylenglykol, Diäthylenglykolmonoäther oder Propylenglykol.
Spezielle Beispiele für diese Ester sind Adipinsäure-dibutyl
ester, Sebacinsäure-di-(2-äthlhexyl)-ester, Fumarsäure-di-n-
hexylester, Sebacinsäure-dioctylester, Azelainsäure-diisooctyl
ester, Azelainsäure-diixodecylester, Phthalsäure-dioctylester,
Phthalsäure-dodecylester, Sebacinsäure-dieicosylester, der
2-Äthylhexyl-diester der dimeren Linolsäure und der komplexe
Ester, der bei der Umsetzung von 1 Mol Sebacinsäure mit 2 Mol
Tetraäthylenglykol und 2 Mol 2-Äthylhexancarbonsäure entsteht.
Spezielle Beispiele für synthetische Öle sind auch die Ester
von Monocarbonsäuren mit 5 bis 12 Kohlenstoffatomen mit Poly
hydroxyverbindungen und den Äthern von Polyhydroxyverbindungen,
wie Neopentylglykol, Trimethylolpropan, Pentaerythrit, Dipenta
erythrit und Tripentaerythrit.
Weitere spezielle Beispiele für synthetische Öle sind solche
auf Siliconbasis, wie die Öle aus Polyalkyl-, Polyaryl-, Poly
alkoxy- oder Polyaryloxy-siloxanen und siliciumorganischen Ver
bindungen, wie Siliciumtetraäthyl, Siliciumtetraisopropyl, Si
liciumtetra-(2-äthylhexyl), Siliciumtetra-(4-methyl-2-äthyl
hexyl), Silciumtgetra-(p-tert.-butylphenyl), Hexyl-(4-methyl-2-
pentoxy)-disiloxan, Poly-(methyl)-siloxan und Poly-(methyl
phenyl)-siloxan.
Andere Beispiele für synthetische Öle sind flüssige Ester von
Phosphorsäuren, wie Phosphorsäuretrikresylester, Phosphorsäure
tricoctylester und Decylphosphorsäurediäthylester, und polymere
Tetrahydrofurane.
Es könne nicht raffinierte, raffinierte und erneut raffinierte
Öle der vorstehend beschriebenen Arten verwendet werden. Nicht
raffinierte Öle sind solche natürlichen oder synthetischen Ur
sprungs, die ohne weitere Reinigungsoperation verwendet werden,
z. B. Schieferöl direkt aus dem Muffelverfahren, Petroleumöl di
rekt aus der Destillation, oder Öl auf Esterbases direkt aus
der Veresterung. Raffinierte Öle sind solche, die einer oder
mehreren Reinigungsoperationen unterzogen wurden, um eine oder
mehrere Eigenschaften zu verbessern. Beispiele für bekannte Rei
nigungsverfahren sind: Lösungsmittelextraktion, saure oder ba
sische Extraktion, Filtration und Perkolation. Erneut raffi
nierte Öle werden nach ähnlichen Verfahren erhalten wie raffi
nierte Öle, wobei Altöle eingesetzt werden. Häufig werden sie
zusätzlichen Reinigungsoperationen unterzogen, um verbrauchte
Zusätze und Ölzersetzungsprodukte zu entfernen.
Die zweite Komponente der Arbeitsflüssigkei
ten und Schmiermittel dient als Dichtungsquellmittel. Es ist das erfindungsgemäß verwendete
substituierte Sulfolan der allgemeinen Formel I, in der R¹, R²
und R³ die in den Ansprüchen angegebene Bedeutung haben. Der
Ausdruck "Kohlenwasserstoffrest" bedeutet einen Rest, der mit
einem Kohlenstoffatom direkt an den Rest des Moleküls gebunden
ist und der vorwiegend Kohlenwasserstoffcharakter aufweist. Spe
zielle Beispiele für solche Reste sind folgende:
- 1. Kohlenwasserstoffreste, wie aliphatische (z. B. Alkyl- oder Alkylenreste), alicyclische (z. B. Cycloalkyl- oder Cycloalkenyl reste), aromatische, aliphatisch- oder alicyclisch-substituierte aromatische und aromatisch-substituierte aliphatische und ali cyclische Reste. Spezielle Beispiele sind die Butyl-, Pentyl-, Hexyl-, Octyl-, Decyl-, Dodecyl-, Eicosyl-, Decenyl-, Cyclo hexyl-, Phenyl-, Toluyl-, Heptylphenyl-, Isopropenylphenyl- und Naphthylgruppe und alle ihre Isomere.
- 2. Substituierte Kohlenwasserstoffreste, wie Reste mit Substi tuenten, die keine Kohlenwasserstoffe sind, die aber den vorwie genden Kohlenwasserstoffcharakter des Restes nicht verändern. Spezielle Beispiele für solche Reste sind: Halogenatome, die Nitro-, Cyan-, RO-, (R bedeutet ein Wasserstoffatom oder einen Kohlenwasserstoffrest.)
- 3. Reste mit Heteroatomen, d. h. Reste die zwar vorwiegend Koh lenwasserstoffcharakter haben, aber in einer sonst aus Kohlen stoffatomen bestehenden Kette oder Ring Heteroatome enthalten. Beispiele für derartige Heteroatome sind Sauerstoff-, Stickstoff- und Schwefelatome.
Im allgemeinen enthält der Kohlenwasserstoffrest nicht mehr als
drei Substituenten oder Heteroatome, vorzugsweise nicht mehr
als einen pro 10 Kohlenstoffatomen.
Bevorzugt werden Sulfolane der allgemeinen Formel I, in der R¹
einen Kohlenwasserstoffrest bedeutet, der vorzugsweise keine
Dreifachbindungen aufweist und 4 bis 100 Kohlenstoffatome ent
hält. Spezielle Beispiele für solche Reste sind die Butyl-,
Amyl-, Hexyl-, Octyl-, Decyl-, Dodecyl-, Eicosyl-, Triacontanyl-,
Butenyl-, Dodecenyl-, Phenyl-, Naphthyl-, Toluyl-, Dodecylphenyl-,
Phenäthyl-, Cyclohexyl- und Methylcyclohexylgruppe und mit Te
trapropen alkyliertes Benzol. Vorzugsweise enthalten die Reste
4 bis 25, insbesondere 4 bis 10 Kohlenstoffatome. Sämtliche
Isomeren der Kohlenwasserstoffreste sind ebenfalls eingeschlos
sen.
R² und R³ bedeuten jeweils entweder ein Wasserstoffatom oder
einen niederen Alkylrest, vorzugsweise einen niederen Alkyl
rest. Der Ausdruck "niederer Alkylrest" bedeutet Reste mit
höchstens 7 Kohlenstoffatomen. Spezielle Beispiele für niedere
Alkylreste sind die Methyl-, Äthyl-, Propyl-, Butyl- und Hexyl
gruppe, vorzugsweise die Methylgruppe. Ebenfalls eingeschlos
sen sind alle Isomeren der niederen Alkylreste, vorzugsweise
sind es aber Reste mit unverzweigter Kette. Vorzugsweise bedeu
tet entweder R² und R³ ein Wasserstoffatom und der andere Rest,
vorzugsweise R³, ein Wasserstoffatom oder eine Methylgruppe.
Vorzugsweise bedeuten R² und R³ Wasserstoffatome.
Besonders bevorzugt sind substituierte Sulfolane der allgemei
nen Formel I, in der R² und R³ Wasserstoffatome und R¹ entwe
der die Isodecylgruppe oder ein Gemisch aus der Isobutyl- und
den primären Amylgruppen, d. h. der n-Amyl, 3-Methyl-1-butyl-,
2-Methyl-1-butyl- und der Neopentylgruppe mit 25 bis 75 Ge
wichtsprozent Isobutylgruppen in dem Gemisch bedeuten.
Das substituierte Sulfolan wird den Arbeitsflüssigkeiten und Schmiermitteln
in geringer Menge als
Dichtungsquellmittel zugesetzt. Gewöhnlich sind es 0,05 bis 20,0, vor
zugsweise 0,1 bis 5,0 Gewichtsteile, bezogen auf 100 Gewichts
teile Öl. Die Erfindung schließt aber auch die Verwendung von Zusatzkonzentraten
ein, die aus einem Verdünnungsmittel, vorzugsweise einer öligen
Flüssigkeit mit schmierender Viskosität, und dem substituierten
Sulfolan bestehen, wobei letzteres bis zu 90 Gewichtsprozent
des Konzentrats erreichen kann. Solche Konzentrate können mit
einer der vorstehend beschriebenen öligen Flüssigkeiten in be
kannter Weise zu den Schmiermitteln und Arbeitsflüssigkeiten
verdünnt werden.
Die Arbeitsflüssigkeiten und Schmiermittel und
ihre Konzentrate können neben den substituierten Sulfolanen noch
weitere Zusätze enthalten. Beispiele für verwendbare Zusätze
sind Detergentien und Dispersants vom Asche enthaltenden und
aschefreien Typ, Korrosion und Oxidation verhindernde Mittel,
Stockpunkterniedriger, Hochdruckzusätze, Viskositätsverbesserer,
Farbstabilisatoren und Antischaummittel.
Beispiele für Asche enthaltende Detergentien sind die lipophi
len neutralen und basischen Alkali- oder Erdalkalisalze von
Sulfonsäuren, Carbonsäuren oder organischen Phosphorsäuren mit
wenigstens einer direkten Kohlenstoff-Phosphorbindung. Derartige
Phosphorsäuren werden z. B. durch Umsetzung eines Olefinpoly
merisats, wie Polyisobuten mit einem Molekulargewicht von 1000,
mit Phosphorierungsmitteln, wie Phosphortrichlorid, Tetraphos
phorheptasulfid, Diphosphorpentasulfid, Phosphortrichlorid und
Schwefel, weißem Phosphor und einem Schwefelhalogenid oder Thio
phosphorylchlorid erhalten. Vorzugsweise werden die Natrium-,
Kalium-, Lithium-, Calcium-, Magnesium-, Strontium- und Barium
salze dieser Säuren verwendet.
Der Ausdruck "basisches Salz" betrifft Metallsalze, in denen
das Metall in einer stöchiometrisch größeren Menge als der or
ganische Säurerest vorliegt. Eine übliche Methode zur Herstel
lung solcher basischer Salze besteht im Erhitzen der Lösung
einer Säure in Mineralöl mit einem Überschuß an einer basischen
Komponente, wie einem Metalloxid, Hydroxid, Carbonat, Bicarbonat
oder Sulfid, auf eine Temperatur über 50°C und anschließendem
Filtrieren des erhaltenen Produktes. Die Verwendung eines
Hilfsmittels (Promotor) zum Einbau eines größeren Überschusses
an Metallkomponente bei der Neutralisation ist ebenfalls be
kannt. Spezielle Beispiele für verwendbare Hilfsmittel dieser
Art sind phenolische Verbindungen, wie Phenol, Naphthol, Alkyl
phenole, Thiophenol, schwefelhaltige Alkylphenole und die Kon
densationsprodukte von Formaldehyd mit phenolischen Verbindun
gen, Alkohole, wie Methanol, Isopropanol, Ocatanol, Äthylengly
kol, Mono- und Dialkyläther von Äthylenglykol und Diäthylen
glykol, Stearylalkohol und Cyclohexanol, und Amine, wie Anilin,
Phenylendiamin, Phenothiazin, Phenyl-b-naphthylamin und Dode
cylamin. Ein besonders günstiges Verfahren zur Herstellung der
basischen Salze besteht im Vermischen einer Säure mit einem
Überschuß einer basischen Erdalkalimetallverbindung und minde
stens einem Alkohol als Hilfsmittel und anschließendem Behan
deln des Gemisches mit Kohlendioxid bei Temperaturen von 60 bis
200°C.
Spezielle Beispiele für verwendbare aschefreie Detergentien
und Dispersants sind die Copolymerisate von lipophilen Mono
meren, wie Methacrylsäuredecylester, Vinyldecyläther oder
Olefinen mit hohem Molekulargewicht, mit Monomeren mit polaren
Substituenten, wie Aminoalkylestern der Acrylsäure oder Poly-
(oxyäthylen)-substituierten Acrylsäureestern. Weitere Beispiele
sind Aminsalze, Amide und Imide von lipophilen Mono- und
Dicarbonsäuren wie Stearinsäure, Ölsäure, Tallölsäure und durch
Alkyl- oder Alkenylreste mit hohem Molekulargewicht substitu
ierte Bernsteinsäure. Besonders bevorzugt als aschefreie Deter
gentien sind die acylierten Polyamine und ähnliche Stickstoff
verbindungen mit mindestens 54 Kohlenstoffatomen, die in der
US-PS 32 72 746 beschrieben sind, deren Umsetzungsprodukte mit
Bor- oder Phosphorverbindungen, Epoxiden, Aldehyden und orga
nischen Säuren, und die Ester von durch Kohlenwasserstoffreste
substituierten Bernsteinsäuren, die in der US-PS 33 81 022 be
schrieben sind.
Spezielle Beispiele für verwendbare Hochdruckzusätze und Korro
sion und Oxidation verhindernde Mittel sind chlorierte alipha
tische Kohlenwasserstoffe, wie chloriertes Paraffin, organische
Sulfide und Polysulfide, wie Benzyldisulfid, Bis-(chlorbenzyl)-
disulfid, Dibutyltetrasulfid, der sulfurierte Methylester der
Ölsäure, sulfuriertes Alkylphenol, sulfuriertes Dipenten und
sulfuriertes Terpen, phosphorsulfurierte Kohlenwasserstoffe, wie
das Umsetzungprodukt eines Phosphorsulfids mit Terpentin oder
Ölsäuremethylester, Phosphorsäureester, wie Phosphite mit 2
oder 3 Kohlenwasserstoffresten, z. B. Dibutyl-, Diheptyl-, Di
cyclohexyl-, Pentyl-phenyl-, Dipentyl-phenyl-, Tridecyl-, Di
stearyl-, Dimethyl-naphthyl-, Oleyl-4-pentylphenyl-phosphit,
und durch Polypropylen (Molekulargewicht 500) oder Diisobutyl
gruppen substituierte Phenylphosphite, Metallsalze der Thio
carbamidsäure, wie Zinkdioctyldithiocarbamidat und Bariumheptyl
phenyldithiocarbamidat, Dithiophosphate von Metallen der II.
Gruppe des Periodensystems, wie Zinkdicyclohexyldithiophosphat,
Zinkdioctyldithiophosphat, Bariumdi-(hepthylphenyl)-diethiophos
phat, Cadmiumdinonyldithiophosphat und das Zinksalz eines Di
thiophosphorsäureesters, der bei der Umsetzung von Phosphor
pentasulfid mit einem äquimolaren Gemisch von Isopropanol und
n-Hexanol entsteht.
Bevorzugte Rezepturen der Arbeitsflüssigkei
ten und Schmiermittel und Transmissionsflüssigkeiten mit den
Zusätzen sind in Tabelle I zusammengestellt. Alle Mengenangaben,
außer denen für das Mineralöl, beziehen sich auf die reinen Zusätze
ohne das als Verdünnungsmittel verwendete Öl. Die substi
tuierten Sulfolane sind solche der allgemeinen Formel I, in
der R¹ die angegebene Bedeutung hat und R² und R³ jeweils ein
Wasserstoffatom bedeuten.
Claims (4)
1. Verwendung von substituierten Sulfolanen der allgemeinen
Formel I
in der R¹ einen Kohlenwasserstoffrest mit 4 bis 100 Koh
lenstoffatomen sowie ggf. bis zu drei Substituenten oder Heteroatomen pro 10 Kohlenstoffatomen und R² und R³ jeweils ein Wasserstoffatom
oder einen niederen Alkylrest mit höchstens 7 Kohlenstoffatomen bedeuten, als Dichtungsquell
mittel in Arbeitsflüssigkeiten und Schmiermitteln.
2. Ausführungsform nach Anspruch 1, da
durch gekennzeichnet, daß in dem substituierten Sulfolan der
allgemeinen Formel I der Rest R¹ einen Alkylrest mit
4 bis 25 Kohlenstoffatomen bedeutet.
3. Ausführungsform nach Anspruch 1, da
durch gekennzeichnet, daß in dem substituierten Sulfolan der
allgemeinen Formel I der Rest R¹ die Isodecylgruppe bedeutet.
4. Ausführungsform nach Anspruch 1, da
durch gekennzeichnet, daß in dem substituierten Sulfolan der
allgemeinen Formel I der Rest R¹ ein Gemisch aus der Isobutyl-
und der primären Amylgruppe bedeutet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/589,309 US4029587A (en) | 1975-06-23 | 1975-06-23 | Lubricants and functional fluids containing substituted sulfolanes as seal swelling agents |
US05/589,310 US4029588A (en) | 1975-06-23 | 1975-06-23 | Substituted sulfolanes as seal swelling agents |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2627226A1 DE2627226A1 (de) | 1977-01-20 |
DE2627226C2 true DE2627226C2 (de) | 1988-08-04 |
Family
ID=27080504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762627226 Granted DE2627226A1 (de) | 1975-06-23 | 1976-06-18 | Arbeitsfluessigkeiten und schmiermittel |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS6014794B2 (de) |
BR (1) | BR7603218A (de) |
CA (1) | CA1058151A (de) |
DE (1) | DE2627226A1 (de) |
FR (1) | FR2315537A1 (de) |
GB (1) | GB1532458A (de) |
IN (1) | IN143388B (de) |
IT (1) | IT1069972B (de) |
MX (1) | MX154074A (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN169147B (de) * | 1986-04-04 | 1991-09-07 | Lubrizol Corp | |
US7635668B2 (en) * | 2004-03-16 | 2009-12-22 | The Lubrizol Corporation | Hydraulic composition containing a substantially nitrogen free dispersant |
WO2006023317A1 (en) * | 2004-08-18 | 2006-03-02 | The Lubrizol Corporation | Lubricant compositions containing seal conditioning agents |
JP5301304B2 (ja) * | 2009-02-03 | 2013-09-25 | コスモ石油ルブリカンツ株式会社 | 無段変速機用潤滑油組成物 |
JP5301305B2 (ja) * | 2009-02-03 | 2013-09-25 | コスモ石油ルブリカンツ株式会社 | 無段変速機用潤滑油組成物 |
JP2016037554A (ja) * | 2014-08-07 | 2016-03-22 | Jx日鉱日石エネルギー株式会社 | グリース組成物 |
DE112016002660T5 (de) * | 2015-06-12 | 2018-05-24 | Jtekt Corporation | Schmierfettzusammensetzung und Wälzvorrichtung für ein Fahrzeug |
JP6741518B2 (ja) * | 2015-08-25 | 2020-08-19 | 株式会社ジェイテクト | 車両用転動装置 |
JP6962677B2 (ja) * | 2016-10-27 | 2021-11-05 | Emgルブリカンツ合同会社 | 潤滑油組成物 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2393925A (en) * | 1943-01-26 | 1946-01-29 | Shell Dev | Insecticides |
US2394251A (en) * | 1943-07-31 | 1946-02-05 | Shell Dev | Hydraulic fluids |
US2461339A (en) * | 1946-01-07 | 1949-02-08 | Shell Dev | Unsaturated thioethers of cyclic sulfones |
US2465912A (en) * | 1946-01-26 | 1949-03-29 | Shell Dev | Polyalkylated monochloro cyclic sulfones |
US2483219A (en) * | 1946-05-04 | 1949-09-27 | Shell Dev | Polyalkylated monohydroxy cyclic sulfones |
US2492927A (en) * | 1946-10-04 | 1949-12-27 | Shell Dev | Sulfolanyl ethers and ether-esters |
US2557673A (en) * | 1949-09-26 | 1951-06-19 | Texas Co | 3-substituted derivatives of 2, 3-dihydrothianaphthene-1-dioxide |
US3407140A (en) * | 1966-08-05 | 1968-10-22 | Gaf Corp | Antioxidant composition comprising a synergistic mixture of a phenol and certain sulfones |
-
1976
- 1976-05-21 BR BR7603218A patent/BR7603218A/pt unknown
- 1976-06-08 FR FR7617240A patent/FR2315537A1/fr active Granted
- 1976-06-09 GB GB23942/76A patent/GB1532458A/en not_active Expired
- 1976-06-09 IN IN1000/CAL/76A patent/IN143388B/en unknown
- 1976-06-15 CA CA254,917A patent/CA1058151A/en not_active Expired
- 1976-06-18 DE DE19762627226 patent/DE2627226A1/de active Granted
- 1976-06-21 IT IT7650033A patent/IT1069972B/it active
- 1976-06-22 JP JP51072838A patent/JPS6014794B2/ja not_active Expired
- 1976-06-22 MX MX165226A patent/MX154074A/es unknown
Also Published As
Publication number | Publication date |
---|---|
FR2315537B1 (de) | 1982-05-14 |
IT1069972B (it) | 1985-03-25 |
DE2627226A1 (de) | 1977-01-20 |
GB1532458A (en) | 1978-11-15 |
FR2315537A1 (fr) | 1977-01-21 |
CA1058151A (en) | 1979-07-10 |
IN143388B (de) | 1977-11-12 |
JPS6014794B2 (ja) | 1985-04-16 |
JPS523585A (en) | 1977-01-12 |
BR7603218A (pt) | 1977-05-24 |
MX154074A (es) | 1987-04-29 |
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Free format text: TAUCHNER, P., DIPL.-CHEM. DR.RER.NAT. HEUNEMANN, D., DIPL.-PHYS. DR.RER.NAT. RAUH, P., DIPL.-CHEM. DR.RER.NAT. HERMANN, G., DIPL.-PHYS. DR.RER.NAT. SCHMIDT, J., DIPL.-ING. JAENICHEN, H., DIPL.-BIOL. DR.RER.NAT., PAT.-ANWAELTE TREMMEL, H., RECHTSANW., 8000 MUENCHEN |