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DE1247525B - Esterschmieroel - Google Patents

Esterschmieroel

Info

Publication number
DE1247525B
DE1247525B DES89591A DES0089591A DE1247525B DE 1247525 B DE1247525 B DE 1247525B DE S89591 A DES89591 A DE S89591A DE S0089591 A DES0089591 A DE S0089591A DE 1247525 B DE1247525 B DE 1247525B
Authority
DE
Germany
Prior art keywords
lubricating oil
chlorinated
lubricating
lubricating oils
esters
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
DES89591A
Other languages
English (en)
Inventor
Francis Terrance Barcroft
Alexander Colquhoun
Barr Macphail
Charles Buchan Milne
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 DE1247525B publication Critical patent/DE1247525B/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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    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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    • C10M2207/023Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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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
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106Thiadiazoles
    • CCHEMISTRY; METALLURGY
    • 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
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/108Phenothiazine
    • CCHEMISTRY; METALLURGY
    • 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
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • C10M2223/047Thioderivatives not containing metallic elements
    • CCHEMISTRY; METALLURGY
    • 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
    • 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
    • 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
    • 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

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

Description

BUNDESREPUBLIK DEUTSCHLAND DEUTSCHES wfäSsk PATENTAMT Int. Cl.:
ClQm
AUSLEGESCHRIFT CfOM TBTTO O B 4 2
Deutsche Kl.: 23 c-1/01
Nummer: 1247525
Aktenzeichen: S 89591IV c/23 c
Anmeldetag: 1. Februar 1964
Auslegeta.g: 17. August 1967
Schmieröle auf der Basis aliphatischer Carbonsäureester, denen zur Verbesserung ihrer Druckaufnahmefähigkeit als sogenannter Hochdruckzusatz Triarylester der Phosphorthionsäure zugesetzt sind, sind aus der Zeitschrift »Lubrication Engineering« (August 1952), S. 179, Tabelle III, bekannt. Der Zusatz relativ hoher Mengen derartiger Phosphorthionsäureester verbietet sich unter anderem allein schon aus Kostengründen.
Aus der deutschen Patentschrift 1 067 553 ist ferner bekannt, daß chlorierte Di- oder Polyphenyle als Hochdruckzusätze für Diesterschmieröle verwendet werden können.
Bei der Verwendung von chlorierten Polyphenylen als Hochdruckzusatz sind jedoch einer Steigerung der Druckaufnahmefähigkeit des Schmieröls insofern verhältnismäßig enge Grenzen gesetzt, als die Steigerung nicht proportional zur Menge des zugesetzten chlorierten Polyphenyls ist, sondern mit steigender Zusatzmenge rasch absinkt.
Es wurde nun gefunden, daß sich besonders vorteilhafte Wirkungen bezüglich der Druckaufnahmefähigkeit eines Schmieröls auf der Basis aliphatischer Carbonsäureester erzielen lassen, wenn man Phosphorthionsäureester in Kombination mit chlorierten Polyphenylen anwendet.
Gegenstand der Erfindung ist somit ein Schmieröl auf der Basis aliphatischer Carbonsäureester, das dadurch gekennzeichnet ist, daß es in Kombination ein chloriertes Di- oder Polyphenyl mit mindestens einem Chlorsubstituenten in jedem Benzokern und einen Triarylester von Phosphorthionsäure mit 6 bis 10 C-Atomen in jedem Arylrest enthält.
Aliphatische Carbonsäureester als Basisschmieröle sind gut bekannt. Hierbei werden verwendet:
Ester von einwertigen Alkoholen mit 3 bis 18 Kohlenstoffatomen im Molekül mit einbasischen, aliphatischen Säuren mit 4 bis 18 Kohlenstoffatomen im Molekül, z. B. Isodecylpelargonat; Diester zweibasischer Carbonsäuren mit 6 bis 20 Kohlenstoffatomen mit einwertigen Alkoholen mit 1 bis 12 Kohlenstoffatomen, z. B. Ester der Adipin-, Pimelin-, Suberin-, Azelain- und Sebacinsäure mit Lauryl-, Heptyl-, Octyl- und Nonylalkohol, oder auch 2,2-Dimethylpentanol, 2,2,4-Trimethy)pentanol,2,2,3-Trimethylpentanol, 2,2-Dimethylhexanol und 2-Methyl-2-äthylhexanol.
Komplexe Ester aus einer aliphatischen Dicarbonsäure und einem Glykol oder Polyglykol, wobei die Veresterung zweckmäßig in Anwesenheit einer alipha-Esterschmieröl
Anmelder:
Shell
Internationale Research Maatschappij N. V.,
Den Haag
Vertreter:
Dr. E. Jung, Patentanwalt,
München 23, Siegesstr. 26
Als Erfinder benannt:
Alexander Colquhoun
Barr Macphail, Little Sutton, Cheshire;
Francis Terrance Barcroft,
Upton-by-Chester, Cheshire;
Charles Buchan Milne,
Little Sutton, Cheshire (Großbritannien)
Beanspruchte Priorität:
Großbritannien vom 21. Februar 1963 (7013) - -
tischen Monocarbonsäure und/oder eines aliphatischen einwertigen Alkohols durchgeführt wird, z. B. Ester der Formel
R2OOCR1COOROOCr1COOR2
in welcher R eine Alkylen- oder Oxyalkylengruppe, R1 eine Alkylengruppe und R8 eine Alkylgruppe bedeutet, erhält man durch Veresterung in Anwesenheit von 2 Mol eines einwertigen aliphatischen Alkohols.
Auch Gemische der beschriebenen Ester können verwendet werden.
Die chlorierten Di- oder Polyphenyle, die als Hochdruckzusatzmittel in den erfindungsgemäßen Schmierölen verwendet werden, können definiert werden als Diphenyle, Terphenyle, höhere Polyphenyle oder Gemischer solcher Verbindungen, bei welchen jeder Benzolkern mit !mindestens einem Chloratom substituiert ist.
Diese Verbindungen enthalten keine Elemente außer Kohlenstoff, Wasserstoff und Chlor und keine anderen, Kernsubstituenten als die Alkylreste und Chloratome. Die chlorierten Di- oder Polyphenyle sind im Handel
709 637/606
erhältlich. Diese Verbindungen, die mindestens 40 Gewichtsprozent Chlor enthalten, sind zur Verwendung im erfindungsgemäßen Schmierölen geeignet. Sie sollen aber vorzugsweise bis etwa 70 Gewichtsprozent Chlor enthalten.
Die chlorierten Di- oder Polyphenyle können verwendet werden in Konzentrationen zwischen 0,5 und 10 Gewichtsprozent und vorzugsweise zwischen 1 und 6 Gewichtsprozent, berechnet auf das fertige Schmieröl.
Beispiele geeigneter Triarylester von Phosphorthionsäure sind Triphenylphosphorthionat, Tritolylphosphorthionat, Tribenzylphosphorthionat und Trixylylphosphorthionat. Triphenylphosphorthionat ist der bevorzugte Ester.
Diese Triarylester können in Konzentrationen zwischen 0,5 und 10 Gewichtsprozent und vorzugsweise .zwischen 1 und 6 Gewichtsprozent, berechnet auf das ■fertige Schmieröl, verwendet werden.
Die erfindungsgemäßen Schmieröle können auch beliebige andere bekannte Zusatzstoffe für aliphatische Carbonsäureesterschmieröle enthalten, wie Verdikkungsmittel, Antioxydationsmittel, die Lackbildung verhindernde Mittel, schaumhindernde Mittel, Farbstoffe, Antikorrosionsmittel, Metallentaktivatoren sowie nötigenfalls weitere Hochdruckzusätze.
Zur weiteren Erläuterung der Erfindung wurden Schmieröle mit der in Tabelle I angegebenen Zusammensetzung hergestellt, geprüft und die Ergebnisse miteinander verglichen. Dabei sind die Schmieröle 6
ίο bis 9 erfindungsgemäße Schmieröle, während die Schmieröle 1 bis 5 dem Stand der Technik entsprechen und zum Vergleich dienen.
Auf einem I.A.E.-Getriebe (beschrieben in Institute of Petroleum Method 166/60T) mit BSS-EN-34-Stahlzahnrädern wurde die Druckaufnahmefähigkeit der Schmieröle 1 bis 8 bei öltemperaturen von 60° C und HO0C geprüft.
Es wurden als wesentliche Kenndaten die Freßlasten bei 200 U/min und 6000 U/min bestimmt und in
ao Tabelle II zusammengestellt.
Tabelle I
Zusammensetzung der Schmieröle in Gewichtsprozent
Di-(isooctylazelat)
Chloriertes Diphenyl mit einem Chlorgehalt
von 54 Gewichtsprozent
Triphenylphosphorthionat
3,7-Dioctylphenothiazin
5-Methylbenzotriazol
Polydimethylsiloxan
Phenyl-Ä-naphthylamin
*) ppm = Teile auf eine Million Teile.
94,0 3 Schmieröl 95,0 92,0 7
3,0 95,0 4 , 3,0 93,0
1 I 2 5,0 92,0 2,0 2,0 5,0
100,0 1,5 8,0 1,5 1,5 2,0
25 ppm*) 25 ppm*) 25 ppm*)
5 ppm*) 5 ppm*) 5 ppm*)
1,5 1,5 1,5
Tabelle II
Schmieröl
4 I 5
I.A.E.-Freßlast, kp
2000 U/min
600C
110° C
6000 U/min
6O0C
1100C
Summe der Freßlasten, kp
Steigerung der Freßlasten mit steigender Konzentration an chloriertem Diphenyl
Maß der Steigerung der Freßlast pro 1 % Steigerung der Konzentration an chloriertem Diphenyl
20,41 20,41
15,88 11,34 68,04
24,95 33,57
20,41 15,42 94,35
26,31
31,75
31,75
21,32
16,78
101,60
7,26
19 ι
34,02
34,02
40,82
36,29
45,36
47,63
49,90
49,90
22,68
18,14
108,86
18,14
20,41
115,57
18,14
13,61
124,74
29,48
27,22
156,49
7,26 9,07 31,75
5 7 35
> 54,43
> 54,43
38,56 38,56
> 185,97
> 29,48
> 22
Aus den Resultaten der Tabelle II und insbesondere den Zahlen werten der letzten Rubrik (Maß der Steigerung der Freßlast ...) ist ersichtlich, daß zwar ein Zusatz von chloriertem Polyphenyl allein zu einer Steigerung der Freßlast Anlaß gibt, was einem verbesserten Druckaufnahmevermögen entspricht, das Maß der Steigerung sinkt jedoch mit wachsender Konzentration des Zusatzstoffes rasch ab (Schmieröle gemäß den Beispielen 2 bis 4).
Der Zusatz einer geringen Menge Phosphorthionsäureester zum Basisöl (Schmieröl 1) erhöht dessen Druckaufnahmefähigkeit beträchtlich (Schmieröl 5). Die Druckaufnahmefähigkeit des Phosphorthionsäureester enthaltenden Schmieröls 5 wird durch den Zusatz einer kleinen Menge chlorierten Polyphenyls weiter erhöht (Schmieröl 6), wenn auch nicht um den gleichen Betrag wie die des Basisöls (Schmieröl 1) durch die gleiche Menge chloriertes Polyphenyl allen (Schmieröl 2).
Steigert man jedoch die Menge des zugesetzten chlorierten Polyphenyls (Schmieröle 7 und 8), so erhöht sich nicht nur die Druckaufnahmefähigkeit schneller
als die Konzentration des chlorierten Polyphenyls, während das Maß der Steigerung der Freßlast bei Schmierölen ohne Gehalt an Phosphorthionsäureester rasch sinkt (vgl. Schmieröle 2 bis 4), sondern die Freßlasterhöhung gegenüber dem Basisöl (Schmieröl 1) wird auch absolut größer, als der Summe der Freßlasterhöhungen durch die beiden Zusätze in den entsprechenden Konzentrationen entspricht.
Dieser Effekt ist ganz überraschend und erlaubt es, Schmieröle zur Verfügung zu stellen, die hinsichtlich der Druckaufnahmefähigkeit allen Anforderungen genügen.

Claims (1)

  1. Patentanspruch:
    Schmieröl auf der Basis aliphatischer Carbonsäureester, dadurch gekennzeichnet, daß es eine Kombination aus einem chlorierten Di- oder Polyphenyl mit mindestens einem Chlorsubstituenten in jedem Benzolkern und einen Triarylester von Phosphorthionsäure mit 6 bis 10 C-Atomen in jedem Arylrest enthält.
    ίο In Betracht gezogene Druckschriften:
    Deutsche Patentschrift Nr. 1 067 553;
    »Lubricating Engineering«, August 1952, S. 179, Tabelle III.
    709 637/606 S. 67 © Bundesdruckerei Berlin
DES89591A 1963-02-21 1964-02-19 Esterschmieroel Pending DE1247525B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7013/63A GB959545A (en) 1963-02-21 1963-02-21 Improvements in or relating to lubricating oil compositions

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DE1247525B true DE1247525B (de) 1967-08-17

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Application Number Title Priority Date Filing Date
DES89591A Pending DE1247525B (de) 1963-02-21 1964-02-19 Esterschmieroel

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US (1) US3297574A (de)
BE (1) BE644059A (de)
DE (1) DE1247525B (de)
GB (1) GB959545A (de)
NL (1) NL6401503A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493509A (en) * 1967-12-04 1970-02-03 Us Army Synthetic lubricating oil for timing mechanisms
US4116874A (en) * 1975-08-27 1978-09-26 Nippon Oil Co., Ltd. Compressor oil compositions
US4175047A (en) * 1978-09-25 1979-11-20 Mobil Oil Corporation Synthetic ester and hydrogenated olefin oligomer lubricant and method of reducing fuel consumption therewith

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067553B (de) 1957-04-29 1959-10-22 Wakefield & Co Ltd C C Synthetisches Schmiermittel auf Esterbasis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157452A (en) * 1934-03-31 1939-05-09 Standard Oil Co California Extreme pressure lubricating compositions
US2242260A (en) * 1937-01-22 1941-05-20 Lubri Zol Dev Corp Lubricating composition
GB757241A (en) * 1953-09-17 1956-09-19 Wakefield & Co Ltd C C Improvements in or relating to lubricating compositions
NL235995A (de) * 1958-02-11
NL247300A (de) * 1959-01-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067553B (de) 1957-04-29 1959-10-22 Wakefield & Co Ltd C C Synthetisches Schmiermittel auf Esterbasis

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NL6401503A (de) 1964-08-24
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