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DE1261617B - Schmieroel - Google Patents

Schmieroel

Info

Publication number
DE1261617B
DE1261617B DES93880A DES0093880A DE1261617B DE 1261617 B DE1261617 B DE 1261617B DE S93880 A DES93880 A DE S93880A DE S0093880 A DES0093880 A DE S0093880A DE 1261617 B DE1261617 B DE 1261617B
Authority
DE
Germany
Prior art keywords
lubricating oil
esters
acid
carbon atoms
arylamines
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.)
Pending
Application number
DES93880A
Other languages
English (en)
Inventor
Alexander Colquhoun B Macphail
Francis Henry Waight
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
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 SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Publication of DE1261617B publication Critical patent/DE1261617B/de
Pending legal-status Critical Current

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    • C10M3/00Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
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    • C10M2207/023Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04Siloxanes with specific structure
    • C10M2229/041Siloxanes with specific structure containing aliphatic substituents
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01Physico-chemical properties
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08Resistance to extreme temperature
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/12Gas-turbines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/12Gas-turbines
    • C10N2040/13Aircraft turbines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2070/00Specific manufacturing methods for lubricant compositions
    • C10N2070/02Concentrating of additives

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Description

BUNDESREPUBLIK DEUTSCHLAND
DEUTSCHES
PATENTAMT
AUSLEGESCHRIFT
Int. Cl.:
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:
ClOm
Deutsche Kl.: 23 c-1/01
1261 617
S93880IVc/23c
23. Oktober 1964
22. Februar 1968
Es ist bekannt, Arylamine und Thiodiarylamine als Antioxydationsmittel in synthetischen Schmiermitteln für Flugzeugturbinenmotoren einzusetzen, wobei auch schon ihre kombinierte Anwendung empfohlen worden ist, um die an sich geringere Antioxydationswirkung gewisser substituierter Phenothiazine zu erhöhen.
Es wurde nunmehr gefunden, daß Triarylester der Phosphorthionsäure zwar nicht allein als Antioxydationsmittel in synthetischen Esterschmierölen wirksam sind, aber in Kombination mit Arylaminen und Thiodiarylaminen in Esterschmierölen in synergetischer Weise hinsichtlich der Erhöhung der Oxydationsbeständigkeit zusammenwirken und zu besseren Ergebnissen als die bekannten Schmieröle führen.
Das erfindungsgemäße Schmieröl auf der Basis von aliphatischen Carbonsäureestern, enthaltend ein Gemisch eines Arylamins und eines Thiodiarylamins, ist dadurch gekennzeichnet, daß es zusätzlich einen Triarylester der Phosphorthionsäure der Formel, vorzugsweise in Mengen von 0,5 bis 10 Gewichtsprozent, bezogen auf das Schmieröl
Schmieröl
S = P
in welcher R Wasserstoff oder ein Alkylrest mit bis zu 8 Kohlenstoffatomen ist, enthält.
Die Arylreste der Phosphorthionsäure enthalten vorzugsweise nicht mehr als 14 Kohlenstoffatome. Beispiele: Triphenyl-, Tritolyl-, Tribenzyl-, Trixylyl-, und Trioctylphenylphosphorthionate. Triphenylphosphorthionat wird jedoch bevorzugt angewendet.
Diese Triarylester können in Konzentrationen zwischen 0,5 und 10 Gewichtsprozent, vorzugsweise zwischen 2,0 und 7,0 Gewichtsprozent, bezogen auf das fertige Schmierölgemisch, vorliegen.
Beispiele für Arylamine sind Phenyl-c^naphthylamin und Alkylderivate dieser Verbindung. Beispiele für Thiodiarylamine sind Phenothiazin und 3,7-Dioctylphenothiazin.
Diese Arylamine und Thiodiarylamine werden in Mengen von 0,5 und 5,0 Gewichtsprozent, Vorzugsweise von 1,0 und 3,0 Gewichtsprozent, bezogen auf das Schmieröl, zugesetzt.
Anmelder:
Shell Internationale Research
Maatschappij N. V., Den Haag
Vertreter:
Dr. E. Jung, Patentanwalt,
8000 München 23, Siegesstr. 26
Als Erfinder benannt:
Francis Henry Waight,
Alexander Colquhoun Barr Macphail,
Wirral, Cheshire (Großbritannien)
Beanspruchte Priorität:
Großbritannien vom 25. Oktober 1963 (42137)
Als Basisschmieröl werden aliphatische Carbonsäureestern verwendet. Geeignete Ester sind die aliphatischen Ester aus einer einbasischen Carbonsäure mitA bis 18 Kohlenstoffatomen im Molekül und einem Glykol mit 4 bis 20 Kohlenstoffatomen je Molekül, beispielsweise Ester aus Neopentylglykol, 2-Butyl-2-äthyl-l,3-propandiol bzw. Dipropylenglykol und Heptansäure, n-Octansäure bzw. Pelargonsäure.
Bevorzugt sind Ester aus Monocarbonsäuren mit 4 bis 18 Kohlenstoffatomen im Molekül, wie Buttersäure und Pelargonsäure, mit mehrwertigen Alkoholen mit 4 bis 12 Kohlenstoffatomen pro Molekül, z. B. Pentaerythritol oder Trimethylolpropan, z. B. Pentaerythritoltetrabutyrat und Trimethylolpropantrihepthylat. Auch Mischungen dieser Ester sind verwendbar.
Die erfindungsgemäßen Schmieröle können auch andere bekannte Zusatzstoffe, wie Hochdruckmittel, Verdickungsmittel, Mittel gegen Lackbildung, Antischaummittel, Farbstoffe, Antikorrosionsmittel und weitere Antioxydationsmittel, enthalten.
Der synergistische Effekt der erfindungsgemäßen Kombination ist aus den Tabellen I und II (IX bis XIV sind erfindungsgemäße Schmieröle, I bis VIII sind Schmieröle nach dem Stand der Technik) ersichtlich.
Für die Prüfung der Gemische wurde der nachstehend beschriebene Rolls Royce Blown Oxidation Test verwendet, "bei welchem die Wirkung des Anti-
809 5ÖJ/299
Oxydationsmittels in Änderungen der Viskosität und des Säurewertes zum Ausdruck kommt. Die entsprechenden Versuchsergebnisse sind in Tabelle II zusammengestellt.
Rolls Royce Blown Oxidation Test
Unter kontrollierten Bedingungen werden durch eine Probe von 50 ml des zu untersuchenden Öls bei einer Temperatur von 220°C während eines Zeitraumes von 192 Stunden 250 ml pro Minute mit Wasserdampf gesättigte Luft oder Stickstoff hindurchgeleitet. Die infolge der Oxidation eintretende Zer-Setzung des Schmierölgemisches wird dann bestimmt durch die Änderung des Säurewertes, durch Änderungen der Viskosität und durch den Gehalt an in Benzol unlöslichen Bestandteilen.
Tabelle I
Zusammensetzung der Versuchsinischungen in Gewichtsprozent
II
III
VI
VII
VIII
IX
XI
xir
XlII
Trimethylolpropantripelargonat
Ester von Pentaerythrytol und C5 _10-Fettsäuren
Ester von Pentaerythritol und Q_8-Fettsäuren..
Ester von Dipentaerythritol und
Cg-io-Fettsäuren
2,2,4-Trimethylpentylazelat
Phenyl-a-naphthylamin . 3,7-Dioctylphenothiazin. Triphenylphosphorthionat
Chloriertes Di- oder Polyphenyl
5-Methylbenzoltriazol ..
l,3,5-Trimethyl-2,4,6-tris-(4-methylen-2,6-ditert.- butylphenol)-benzol ..
2,3,5,6-Tetramethyll,4-bis-(4-methyIen- 2,6-ditert.butylphenol)-benzol
Polydimethylsiloxan 12 500
Azelainsäure
*) ppm = Teile pro Million.
63,0 19,5
61,0 19,5
94,98
94,98
60,0
19,5
58,0
19,5
58,0
19,5
58,0
19,5
91,98
91,98
72,98
19,5
53,0 19,5
14,48
3,0 25 ppm*)
14,48
2,0
3,0 25
2,0
3,0
25
25 2,0
3,0
25
14,48
1,5
1,5
3,0
25
14,48
1,5
1,5
■3,0
25
2,0
14,48
1,5
1,5
3,0
25
14,48
1,5
1,5
2,0
3,0
25
1,5
1,5
2,0
3,0
25
1,5
1,5
2,0
3,0
1,5
1,5
2,0
3,0
25
25
14,48 1,5 1,5 7,0
3,0 25
5 ppm*) 0,02
5 0,02
0,02
0,02
0,02
0,02
2,0
0,02
0,02
0,02
0,02
0,02
0,02
Tabelle II
Versuchsmischung
In Benzol
unlösliches
Gewichtsprozent
Beginn Viskosität in cS bei 98,90C
Ende Erhöhung (%)
Säurewert in mg KOH/g Beginn Ende
II
III
IV
VI
VII
Fest Fest Fest Fest Fest
0,02 0,008
0,017. 0,008
4,84 5,08
19,4. 305
25,1 418
27,8 446
18,2 258
0,10
0,10
6,05 6,15 6,55. 6,20
Fortsetzung
Versuchsmischung
In Benzol
unlösliches
Gewichtsprozent
Viskosität in cS bei 98,90C Beginn Ende Erhöhung (%)
Säurewert in mg KOH/g
Beginn
Ende
VIII
XI
XII
XIII
XIV
0,012
0,008
nichts
nichts
0,003
0,02
0,005
0,005
0,004
0,02
0,006
0,01
0,05
0,01
} 4,80 } 5,02 } 4,90
5,00 \ 5,04
5,47 {
32,6 547
59,2 1080
11,9 148
12,0 150
13,5 169
13,6 171
12,2 149
12,4 153
13,6 172
13,2 164
11,7 132
12,1 140
9,43 72,5
10,13 85,2
Durch die Zahlenwerte von Tabelle II wird bestätigt, daß durch die Anwesenheit eines Triarylesters der Phosphorthionsäure, welcher bei alleiniger Anwendung in einem solchen synthetischen Esterschmieröl praktisch keine Wirkung als Antioxydationsmittel zeigt (vgl. Beispiele II bis V), die Oxydationsbeständigkeit eines solchen Esterschmieröles, welches außerdem Arylamine und Thiodiarylamine enthält, ganz wesentlich verbessert wird. Diese Erhöhung der Oxydationsbeständigkeit kommt in der Verringerung des Anteiles an in Benzol unlöslichen Bestandteilen, in den Werten für die Viskositätserhöhung und in den Werten für die Erhöhung des Säuregrades bei dem vorstehend beschriebenen Oxydationstest zum Ausdruck (vgl. Beispiele IX bis XIV).
Auch ist die erfindungsgemäß erzielte Verbesserung wesentlich größer als bei Anwendung anderer bekannter Antioxydationsmittel (vgl. Beispiele VII und VIII).

Claims (1)

  1. Patentanspruch:
    Schmieröl auf der Basis von aliphatischen Carbonsäureestern, enthaltend ein Gemisch eines 0,10
    0,10
    0,10
    0,10
    0,10
    0,10
    0,20
    6,30 6,20
    4,90 4,60
    4,00 3,10
    4,45 3,35
    4,80 4,70
    3,75 3,65
    4,60 3,60
    Arylamine und eines Thiodiarylamins, dadurch gekennzeichnet, daß es zusätzlich einen Triarylester der Phosphorthionsäure der Formel
    S = P
    in welcher R Wasserstoff oder ein Alkylrest mit bis zu 8 Kohlenstoffatomen ist, enthält.
    In Betracht gezogene Druckschriften: Australische Patentschrift Nr. 236 748.
    809 509/299 2.6S © Bundesdruckerei Berlin
DES93880A 1963-10-25 1964-10-23 Schmieroel Pending DE1261617B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB42137/63A GB1043280A (en) 1963-10-25 1963-10-25 Improvements in or relating to lubricating oil compositions

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DE1261617B true DE1261617B (de) 1968-02-22

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ID=10423020

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Country Link
US (1) US3429813A (de)
BE (1) BE654774A (de)
DE (1) DE1261617B (de)
GB (1) GB1043280A (de)
NL (1) NL142197B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638324A1 (de) * 1975-08-27 1977-03-10 Nippon Oil Co Ltd Kompressoroel-zusammensetzung mit ausgezeichneter oxydationsstabilitaet

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133692A (en) * 1967-01-11 1968-11-13 Shell Int Research Improvements in or relating to ester lubricants
US3992307A (en) * 1974-11-04 1976-11-16 Chevron Research Company Lubricant composition of improved antioxidant properties
US7294607B2 (en) * 2002-08-21 2007-11-13 Bp Corporation North America Inc. Synergistic combination of load supplement additive and corrosion inhibitors for lubricant compositions
CN101466818B (zh) * 2006-05-15 2013-03-27 国际壳牌研究有限公司 润滑油组合物
RU2656345C1 (ru) * 2017-12-19 2018-06-05 Публичное акционерное общество "КАМАЗ" Применение три(бензилфенил)фосфоротионата в качестве противоизносной присадки к смазочным маслам

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242260A (en) * 1937-01-22 1941-05-20 Lubri Zol Dev Corp Lubricating composition
NL247300A (de) * 1959-01-14
US3100748A (en) * 1959-11-10 1963-08-13 Shell Oil Co Lubricating compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638324A1 (de) * 1975-08-27 1977-03-10 Nippon Oil Co Ltd Kompressoroel-zusammensetzung mit ausgezeichneter oxydationsstabilitaet

Also Published As

Publication number Publication date
NL6412348A (de) 1965-04-26
BE654774A (de) 1965-04-23
US3429813A (en) 1969-02-25
NL142197B (nl) 1974-05-15
GB1043280A (en) 1966-09-21

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