DE1058187B - Schmiermittel - Google Patents
SchmiermittelInfo
- Publication number
- DE1058187B DE1058187B DEN12755A DEN0012755A DE1058187B DE 1058187 B DE1058187 B DE 1058187B DE N12755 A DEN12755 A DE N12755A DE N0012755 A DEN0012755 A DE N0012755A DE 1058187 B DE1058187 B DE 1058187B
- Authority
- DE
- Germany
- Prior art keywords
- unsaturated
- lubricant
- lubricant according
- ester
- copolymer
- 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
Links
Classifications
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M165/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/22—Alkylation reaction products with aromatic type compounds, e.g. Friedel-crafts
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Description
C 1OM 169/00A28
N12755IVc/23c
ANMELDETA G: 24. SEPTEMBER 1956
BEKANNTMACHUNG
DER ANMELDUNG
OND AUSGABE DER
AUSLEGESCHRIFT: 27.MAI1959
Die Erfindung bezieht sich auf Schmiermittel, die neben
reinigenden und dispergierenden Eigenschaften gute Hochdruckeigenschaften aufweisen, außerdem den Verschleiß
verhindern und insbesondere zur Anwendung bei Motoren geeignet sind, die unter scharfen Bedingungen
des Haltens und Anfahrens arbeiten.
Es ist bereits bekannt, den Schmierölen gewisse Öllösliche,
nicht aschebildende synthetische polymere Verbindungen mit dispergierenden Eigenschaften beizumischen,
wodurch einige Nachteile der üblichen metallischen Reinigungsmittel, z. B. von Salzen mehrwertiger Metalle
oder Seifen organischer Carbonsäuren, organischer Naphthensäuren oder organischer Sulfonsäuren vermieden
werden können.
Solche reinigend wirkenden Schmiermittel können beispielsweise Ideine Anteile von Mischpolymerisaten aus
einer polymerisierbaren basischen heterocyclischen Stickstoffverbindung
und einem weiteren polymerisierbaren ungesättigten Material enthalten, wie sie bei der Umsetzung
von Laurylmethacrylat und 2-Methyl-5-vinylpyridin in Anwesenheit eines Katalysators erhalten
werden.
Auch Mischpolymerisate mit einem Molgewicht über 1000 aus einem α-Olefm mit mindestens 10 Kohlenstoffatomen
und einer anderen ungesättigten polymerisierbaren Verbindung, welche polare Gruppen enthält, wie
die alkoholische OH-Gruppe, die SH-Gruppe und die CONR2-Gruppe (R = H oder ein Kohlenwasserstoffrest)
sind schon als Schmierölzusatz in Vorschlag gebracht worden. Neben diesen aus einem ot-Olefin hergestellten
Mischpolymerisaten können die betreffenden Schmiermittel auch noch lösliche Phosphor und/oder Schwefel
enthaltende Verbindungen aufweisen; durch diese Kombination lassen sich gewisse Effekte erzielen.
Es ist ferner vorgeschlagen worden, mineralischen und synthetischen Schmierölen Mischpolymerisate aus
75 bis 99 Gewichtsteilen eines Acrylsäureester von gesättigten aliphatischen Alkoholen mit mindestens
8 Kohlenstoffatomen im Alkoholrest und 1 bis 25 Gewichtsteilen einer äthylenisch ungesättigten, eine basische
tertiäre Aminogruppe enthaltenden Verbindung zuzusetzen, in welcher Verbindung der tertiäre Aminostickstoff
acyclisch ist oder Glied eines heterocylischen Ringes ist. Im letzteren Fall muß sich die polymerisierbare
Äthylendoppelbindung aber außerhalb des Ringes befinden. Zusätzlich können diese Schmiermittel noch
bekannte Antioxydationsmittel, wie Alkylphenole und Amine, enthalten.
Obwohl diese erst vorgeschlagenen oder bekannten Schmiermittel an sich recht befriedigende Reinigungseigenschaften innerhalb eines weiten Temperaturbereiches
aufweisen, versagen sie doch bei der Anwendung in solchen Motoren, die bei niedrigen und hohen Temperaturen
unter besonders schwerer Belastung und bei sehr Schmiermittel
Anmelder:
N. V. De Bataafsche Petroleum
Maatsctiappij, Den Haag
Maatsctiappij, Den Haag
Vertreter: Dr. K. Schwarzhans, Patentanwalt,
München 19, Romanplatz 9
München 19, Romanplatz 9
Beanspruchte Priorität:
V. St. v. Amerika vom 26. September 1955
V. St. v. Amerika vom 26. September 1955
Robert Caldwell Jones, Berkeley, Calif.,
und Eugene Sidney Moulic jun., Oakland, Calif.
und Eugene Sidney Moulic jun., Oakland, Calif.
(V. St. Α.),
sind als Erfinder genannt worden
sind als Erfinder genannt worden
hohen Drücken arbeiten. Solche Bedingungen treten aber bekanntlich vor allem dann auf, wenn der Motor häufig
angelassen und dann wieder stillgesetzt wird.
Es wurde nun gefunden, daß sich diese Schwierigkeiten beheben lassen, wenn man als Schmiermittel ein mineralisches oder synthetisches Schmieröl einsetzt, welches geringe Mengen a) eines oder mehrerer Mischpolymerisate mit einem Molgewicht über 1000 und einer Mehrzahl von Seitenketten COOR (R = Kohlenwasserstoffrest mit mindestens 8 Kohlenstoffatomen) sowie b) einer öllöslichen halogensubstituierten Phosphin-, Phosphon- oder phosphonigen Säure, eines Teilesters oder eines vollständigen Esters oder eines Salzes einer solchen Säure enthalt.
Es wurde nun gefunden, daß sich diese Schwierigkeiten beheben lassen, wenn man als Schmiermittel ein mineralisches oder synthetisches Schmieröl einsetzt, welches geringe Mengen a) eines oder mehrerer Mischpolymerisate mit einem Molgewicht über 1000 und einer Mehrzahl von Seitenketten COOR (R = Kohlenwasserstoffrest mit mindestens 8 Kohlenstoffatomen) sowie b) einer öllöslichen halogensubstituierten Phosphin-, Phosphon- oder phosphonigen Säure, eines Teilesters oder eines vollständigen Esters oder eines Salzes einer solchen Säure enthalt.
Das Mischpolymerisat soll aus den folgenden monomeren
Komponenten bestehen:
1. Einem oder mehreren Estern von einer ungesättigten Carbonsäure mit einem aliphatischen Alkohol mit
mindestens 8 Kohlenstoffatomen im Molekül und
2. einem ungesättigten Alkohol und/oder einer ungesättigten Carbonsäure und/oder einer ungesättigten
Stickstoffverbindung.
Die Art und Weise bzw. der Mechanismus, durch welchen den diese nicht aschebildenden öllöslichen Mischpolymerisate
enthaltenden Gemischen verschleißhindernde Eigenschaften erteilt werden, ist noch nicht klar
erkannt worden. Die außergewöhnliche Wirkung der beiden kombinierten Zusatzstoffe und die unerwarteten
Eigenschaften, welche sie den Ölen erteilen, sind
S09 52«i/366
aber durcih ausgedehnte Versuche eindeutig festgestellt
worden.
Das öUösliche Mischpolymerisat in dem Schmiermittel
gemäß der Erfindung hat vorzugsweise ein Molgewicht von 30 000 bis 500 000.
Bevorzugt verwendete Mischpolymerisate werden aus polymerisierbaren heterocyclischen stickstoffbasischen
Verbindlangen und einem anderen polymerisierbaren, ungesättigten Material erhalten, das keinen freien heterocyclischen
stickstoffhaltigen Rest enthält.
Sehr geeignete heterocyclische stickstoffbasische Verbindungen sind die Vinylpyridine und die alkylsubstituierten
Vinylpyridine.
Eine (andere Gruppe von polymerisierbaren Stoffen, die
als Komponenten bei der Bildung der Mischpolymerisate brauchbar sind, besteht aus Acrylsäure und «-substituierten
Acrylsäuren sowie deren Derivaten, wie Ester, Nitrile und Amide.
Die Mischpolymerisate können nach jedem geeigneten Verfahren hergestellt werden, wobei die Reaktion vorzugsweise
in Anwesenheit eines Katalysators durchgeführt wird. So können z. B. die Reaktionskomponenten
im Molverhältnis 1:10 bis 10:1 und vorzugsweise 1:1 bis
4:1 in Anwesenheit von 0,1 bis 5% eines Katalysators, wie eines Peroxyds oder einer Azoverbindung, in Gegenwart
eines inerten Lösungsmittels, z. B. eines Kohlenwasserstoffes, unter einem Schutzgas, bestehend aus Stickstoff
oder Kohlendioxyd, und bei einer Temperatur, die zwischen Raumtemperatur oder niedriger und etwa
1800C und noch höher schwanken kann, während eines Zeitraumes von etwa 2 bis 48 Stunden umgesetzt werden.
Die folgenden Beispiele erläutern die Herstellung von Mischpolymerisaten aus einer polymerisierbaren, heterocyclischen,
stickstoffbasischen \rerbindung und einem
keime heterocyclischen, stickstoffhaltigen Reste enthaltenden polymerisierbaren ungesättigten Material. Für das
Polymerisationsverfahren an sich wird jedoch im Rahmen der vorliegenden Erfindung kein Schutz beansprucht.
Ein Gemisch aus etwa 2 Mol Lauryknethacrylat,
1 Mol 2-Methyl-5-vinylpyridin und 0,4 Gewichtsprozent Benzoylperoxyd wurde während mehr als 2 Stunden bei
80 bis 850C in einer Stickstoff atmosphäre umgesetzt. Die
nicht zur Reaktion gekommenen Stoffe wurden bei 185° C und 1 mm Hg abdestilliert; das zurückbleibende
Mischpolymerisat war ein kautschukartiges Produkt, das ungefähr 3 % Stickstoff enthielt, ein Molgewicht von über
150 000 aufwies und in K ohlen wasserstoff ölen löslich war.
Ein Mischpolymerisat aus Laurylmethacrylat und 2-Methyl-5-vinylpyridin wurde nach dem \rerfahren
gemäß Beispiel 1 hergestellt, wobei aber das Molverhältnis der Reaktionskomponenten 4:1 betrug. Der
Stickstoffgehalt des Produktes war etwa 20J0, das Molgewicht
lag über 75 000, und das Produkt hatte eine klebrige, gummiartige Konsistenz, war aber öllöslich.
Andere geeignete Mischpolymerisate werden aus einem Acrylsäureester oder einem a-alkylsubstituierten Acrylsäureester
von einem gesättigten aliphatischen Alkohol mit mindestens 8 Kohlenstoffatomen und einem Acrylsäureester
oder einem a-alkylsubstituierten Acrylsäureester eines Alkyl-tert.aminoälkanols erhalten.
Polymere dieser Art sind z. B. Laurylmethacrylat-Diäthylaminoäthylrnethacrylat
(90:10) und Lauryimethacrylat-tert. Octylaminoäthylmethacrylat.
Der zweite wesentliche in den erfindungsgemäßen Schmiermitteln verwendete Zusatzstoff ist eine öllösliche
halogensubstituierte Phosphin-, Phosphon- oder phosphonige Säure sowie Teilester oder vollständige Ester
oder Salze der genannten Säuren. Als Beispiele solcher phosphorhaltiger Verbindungen mit mindestens einer
P-C-Bindung im Molekül können genannt werden: Trichlormethanphosphin-, Dibromäthanphosphin-, Trichlorcyclohexanphosphin-,
Trichloräthanphosphon-, Dichlormonobrommethanphosphon- und Dichlorphenylbenzolphosphonsäure,
Tribromäthanphosphonat, AUyldichlormonobrommethan- und S^-Dibutyltrichlormethanthiophosphonat.
Die Salze organischer Stickstoffbasen, wie der Amine (primär, sekundär und tertiär), z. B. Di-2-ätbylhexylamin,
Dichlorhexylamin, Allyloctylamin, t-C12H25NH2
bis t-C12H31NH2 sowie Morpholinsalze der oben angegebenen
sauren Verbindungen sind gleichfalls gut wirkende Zusatzstoffe.
Als Schmierölbasis in den erfindungsgemäßen Schmiermitteln
kann jedes beliebige natürliche oder synthetische
ao Material dienen, welches schmierende Eigenschaften aufweist, beispielsweise ein Kohlenwasserstofföl mit weitem
Viskositätsbereich, z. B. 100 SUS bei 37,8°C bis 150 SUS bei 93,31C. Die Kohlenwasserstofföle können verschnitten
sein mit fetten Ölen, wie Ricinusöl, und Specköl u. dgl.
und bzw. oder mit synthetischen Schmiermitteln, wie polymerisierten Olefinen, Mischpolymerisaten aus Alkylenglykolen
und Oxyden; organischen Estern mehrbasischer anorganischer Säuren, z. B. Di-2-äthylhexylsebazat,
Dioctylphthalat, Trioctylphosphat, polymeren Tetrahydrofuran; Polyalkylsiliconpolymeren, z. B. Dimethylsiliconpolymeren.
Gewünschtenfalls kann das synthetische Schmieröl als einziges Basismaterial oder vermischt mit
fetten Ölen und ihren Derivaten verwendet werden.
Mineralische Schmieröle, welche in den erfmdungsgemäßen
Gemischen besonders vorteilhaft sind, wurden aus Westtexas-Ellenburger-Rohöl, Osttexas-Rohölen,
Oklahoma-Rohölen und kalifornischen Rohölen gewonnen. Ein raffiniertes Schmieröl aus solchem Rohöl hatte
folgende Eigenschaften:
Spezifisches Gewicht, 0API Min. 26,5
Stockpunkt Max. -120C
Flammpunkt, COC Min. 199° C
Viskosität, SUS bei 37,8°C 120 — 160
Viskositätsindex Min. 95
Ein anderes geeignetes Öl ist ein SAE-30-Mineralöl
mit folgenden Eigenschaften:
Spezifisches Gewicht, 0API Min. 24,5
Stockpunkt Max. -2O0C
Flammpunkt, COC Min. 2121C
Viskosität, SUS bei 98,9° C 58 bis 63
Viskositätsindex 50 bis 60
Die allgemeine Zusammensetzung von Schmiermitteln gemäß \t>rliegender Erfindung kann wie folgt angegeben
werden:
Weiter | Eager | |
Bereich | Bereich | |
Komponenten | ||
Gewichtb- | Gewichts | |
prozent | prozent | |
Wesentliche Zusatzstoffe | ||
Nicht aschebildendes | ||
Mischpolymerisat | 0,5 bis 10 | Ibis 6 |
Phosphorhaltige halogen | ||
substituierte Verbindung | ||
mit mindestens einer | ||
P-C-Bindung | 0,01 bis 10 | 0,1 bis 2 |
Komponenten | Weiter Bereich Gewichts prozent |
Enger Bereich Gewichts prozent |
Zusätze nach Wahl Antioxydationsmittel, Korrosionsverhinderer Verbesserungsmittel für VI usw Basis Mineralisches und/oder synthetisches Öl |
0,01 bis 2 Rest |
0,1 bis 1 Rest |
Schmiermittel gemäß der Erfindung werden weiter durch das folgende Beispiel erläutert:
Gemisch A
Mischpolymerisat aus 1 Mol 2-Methyl-5-vinylpyridin
und 2 Mol Stearylmethacrylat 2 Gewichtsprozent t-C15H31NHr bis ^C18H37NH2-SaIz von
Trichlormethanphosphonsäure 0,062
Gewichtsprozent*) Mineralöl (SAE 5) Rest
*) Berechnet als Phosphor.
Das Gemisch A wurde bezüglich ihrer außergewöhnlichen Schmiereigenschaften nach dem Chevrolet-LS-5-Test,
beschrieben von J. B. Bidwell et al in SAE preprint, March 2—4,1954, unter dem Titel »Lifters and
Lubricants«, geprüft.
Die Bedingungen, unter welchen der Motor bei dem LS-5-Test arbeitete, waren: Geschwindigkeit 3150 Umdr./
Min.; ölsumpftemperatur 124°C; Kühlmanteltemperatur 88 bis 93° C; Dauer eines Laufes 24 Stunden.
Das Gemisch A wurde verglichen mit dem nachstehenden, nicht erfindungsgemäßen Gemisch B:
Gemisch B
Mischpolymerisat aus 1 Mol 2-Methyl-5-vinylpyridin
und etwa 2 Mol Stearylmethacrylat 2 Gewichtsprozent
Zn-ci-Cg-alkyldithiophosphat 0,062
Gewichtsprozent*)
Mineralöl (SAE 5) Rest
*) Berechnet als Phosphor.
Gemisch A wies einen Verschleiß auf von etwa 4 gegen Gemisch B etwa 12. Diese Ziffern stellen, wenn multipliziert
mit 2,5 · 10-4 den Metallverlust der Stößeloberfläche in cm dar. Außerdem wies Gemisch A keine angefressenen
Stößel und Gemisch B 3 angefressene Stößel von insgesamt 16 Stößeln auf.
Zu Gemischen gemäß der Erfindung können untergeordnete Mengen von weniger als 1 °/0 Schaumverhinderer,
wie Siliconpolymere, Korrosionsverhinderer, wie Calcium- oder Zinkdithiophosphat (Zinkdicyclohexyldithiophosphat),
Reinigungsmittel, z. B. Erdalkalisulfonate (neutral oder basisch), Antioxydationsmittel, z. B. Amine
(Phenyl-a-naphthylamin) oder Alkylphenole (2,6-Di-tert.-butyl-4-methylphenol),
Stockpunktserniedriger und Verbesserungsmittel für den Viskositätsindex, z. B. Polymethacrylate
oder Gemische solcher Stoffe zugesetzt werden.
Claims (8)
1. Schmiermittel, bestehend aus einem Schmieröl und einer kleineren Menge, vorzugsweise 0,5 bis
10 Gewichtsprozent, bezogen auf die Gesamtmischung,
ίο eines oder mehrerer öllöslicher Mischpolymerisate mit
einem .Molgewicht über 1000 und einer Mehrzahl von Seitenketten COOR, wobei R einen Kohlenwasserstoffrest
mit mindestens 8 C-Atomen bedeutet, aus (1) einem oder mehreren Estern einer ungesättigten
Carbonsäure mit einem aliphatischen Alkohol mit mindestens 8 Kohlenstoffatomen und (2) einem ungesättigten
Alkohol und/oder einer ungesättigten Carbonsäure und/oder einer ungesättigten Stickstoffverbindung,
dadurch gekennzeichnet, daß das Schmiermittel außerdem eine ldeinere Menge, vorzugsweise
0,1 bis 10 Gewichtsprozent, bezogen auf die Gesamtmischung, einer an sich als Schmiermittelzusatz
bekannten öllöslichen halogensubstituierten Phosphin-, Phosphon- oder phosphonigen Säure, einen
Teilester oder einen vollständigen Ester oder ein Salz der genannten Säuren, enthält.
2. Schmiermittel nach Anspruch 1, dadurch gekennzeichnet, daß das Mischpolymerisat ein Molekulargewicht
zwischen 30 000 und 500 000 aufweist.
3. Schmiermittel nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die ungesättigte Stickstoffverbindung
'in dem Mischpolymerisat ein Vinylpyridin, wie 4-Vinylpyridin, oder ein alkylsubstituiertes Vinylpyridin,
wie 2-Methyl-5-vinylpyridin, ist.
4. Schmiermittel nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die ungesättigte Stickstoffverbindung
in dem Mischpolymerisat ein Acrylsäurenitril, ein Acrylsäureamid oder ein Ester einer Acrylsäure
und eines Aminoalkohols, wie Diäthylaminoäthylmethacrylat, ist.
5. Schmiermittel nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß das molare Verhältnis der ungesättigten
Komponenten (1) und (2) in dem Mischpolymerisat zwischen 1:10 und 10:1, vorzugsweise
zwischen 1:1 und 4:1, beträgt.
6. Schmiermittel nach Anspruch 1 bis 5, .dadurch gekennzeichnet, daß es als önösliches halogensubstituiertes
Phosphonsäurederivat einen Alkylester, einen Arylester, einen halogensubstituierten Arylester oder
ein Salz der Trichlormethanphosphonsäure enthält.
7. Schmiermittel nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß es ein mineralisches Schmieröl
enthält.
8. Schmiermittel nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß es zusätzlich kleinere Mengen an
sich bekannter Zusatzstoffe, wie eines Antioxydationsmittels, eines Korrosionsinhibitors, eines Viskositätsindexverbesserers
und/oder eines Stockpunkterniedrigers enthält.
60
60
In Betracht gezogene Druckschriften:
Französische Patentschrift Nr. 1 061 771.
Französische Patentschrift Nr. 1 061 771.
In Betracht gezogene ältere Patente:
Deutsche Patente Nr. 947 186, 960 756, 1 003 896,
1003897.
Deutsche Patente Nr. 947 186, 960 756, 1 003 896,
1003897.
Bei der Bekanntmachung der Anmeldung ist ein Prioritätsbeleg ausgelegt worden.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US536747A US2958660A (en) | 1955-09-26 | 1955-09-26 | Detergent and wear inhibiting mineral lubricating oil compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1058187B true DE1058187B (de) | 1959-05-27 |
Family
ID=24139773
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN12756A Pending DE1053700B (de) | 1955-09-26 | 1956-09-24 | Schmieroel |
DEN12755A Pending DE1058187B (de) | 1955-09-26 | 1956-09-24 | Schmiermittel |
DEN12754A Pending DE1053699B (de) | 1955-09-26 | 1956-09-24 | Schmieroel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN12756A Pending DE1053700B (de) | 1955-09-26 | 1956-09-24 | Schmieroel |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN12754A Pending DE1053699B (de) | 1955-09-26 | 1956-09-24 | Schmieroel |
Country Status (6)
Country | Link |
---|---|
US (1) | US2958660A (de) |
BE (1) | BE551242A (de) |
DE (3) | DE1053700B (de) |
FR (1) | FR1158245A (de) |
GB (3) | GB799037A (de) |
NL (3) | NL102109C (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1160967B (de) * | 1960-06-15 | 1964-01-09 | Shell Int Research | Schmiermittel |
DE2926474A1 (de) * | 1979-06-30 | 1981-01-08 | Servo B V | Kristallisationsinhibitoren fuer paraffinhaltige rohoele |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1145289B (de) * | 1958-06-26 | 1963-03-14 | Monsanto Chemicals | Zusaetze zu Mineralschmieroelen, Brennstoffoelen und anderen Kohlenwasserstoffgemischen aus Mineraloelen |
US3205170A (en) * | 1958-08-08 | 1965-09-07 | Universal Oil Prod Co | Stabilization of organic compounds |
NL127317C (de) * | 1958-09-22 | |||
US3397145A (en) * | 1958-12-29 | 1968-08-13 | Universal Oil Prod Co | Hydrocarbon oils containing alkylthiophosphoric acid salts of polymeric condensation products |
US3159578A (en) * | 1960-02-26 | 1964-12-01 | Shell Oil Co | Organic functional fluids and polymeric amine salt additives therefor |
US3198739A (en) * | 1960-11-25 | 1965-08-03 | Shell Oil Co | Lubricants and polymeric additives therefor |
US3192158A (en) * | 1962-04-18 | 1965-06-29 | Shell Oil Co | Lubricating compositions containing a detergent copolymer and an alkaline earth petroleum sulfonate-trialkyl amine complex |
US3211652A (en) * | 1962-12-03 | 1965-10-12 | Ethyl Corp | Phenolic compositions |
US3336237A (en) * | 1963-05-16 | 1967-08-15 | Shell Oil Co | Lubricating oil composition |
NL6404814A (de) * | 1964-04-29 | 1965-11-01 | ||
GB2056482A (en) * | 1979-08-13 | 1981-03-18 | Exxon Research Engineering Co | Lubricating oil compositions |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1061771A (fr) * | 1951-03-09 | 1954-04-15 | Du Pont | Perfectionnements aux compositions lubrifiantes |
DE947186C (de) * | 1951-03-09 | 1956-08-09 | Du Pont | Zusatz zu Schmieroelen und Heizoelen |
DE960756C (de) * | 1953-05-25 | 1957-03-28 | Bataafsche Petroleum | Schmiermittel |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2629693A (en) * | 1947-07-01 | 1953-02-24 | Shell Dev | Lubricating composition |
US2584968A (en) * | 1950-06-24 | 1952-02-12 | Du Pont | Copolymers of methacrylanilide with higher alkyl acrylic esters |
US2737496A (en) * | 1952-02-16 | 1956-03-06 | Du Pont | Lubricating oil compositions containing polymeric additives |
US2723236A (en) * | 1952-11-03 | 1955-11-08 | Lubrizol Corp | Lubricants |
BE526487A (de) * | 1953-02-17 | |||
BE538017A (de) * | 1954-05-10 | |||
NL97884C (de) * | 1954-07-12 | |||
GB786167A (en) * | 1954-09-27 | 1957-11-13 | Shell Res Ltd | Improvements in or relating to the preparation of basic oil-soluble polyvalent metalsalts of organic acids and solutions of said basic salts in oils, and the resultingsalts |
US2800453A (en) * | 1955-11-18 | 1957-07-23 | Shell Dev | Liquid hydrocarbon compositions |
BE533324A (de) * | 1957-02-06 |
-
0
- NL NL102108D patent/NL102108C/xx active
- NL NL102110D patent/NL102110C/xx active
- NL NL102109D patent/NL102109C/xx active
- BE BE551242D patent/BE551242A/xx unknown
-
1955
- 1955-09-26 US US536747A patent/US2958660A/en not_active Expired - Lifetime
-
1956
- 1956-09-24 GB GB29139/56A patent/GB799037A/en not_active Expired
- 1956-09-24 FR FR1158245D patent/FR1158245A/fr not_active Expired
- 1956-09-24 DE DEN12756A patent/DE1053700B/de active Pending
- 1956-09-24 DE DEN12755A patent/DE1058187B/de active Pending
- 1956-09-24 GB GB29137/56A patent/GB799036A/en not_active Expired
- 1956-09-24 GB GB29138/56A patent/GB810685A/en not_active Expired
- 1956-09-24 DE DEN12754A patent/DE1053699B/de active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1061771A (fr) * | 1951-03-09 | 1954-04-15 | Du Pont | Perfectionnements aux compositions lubrifiantes |
DE947186C (de) * | 1951-03-09 | 1956-08-09 | Du Pont | Zusatz zu Schmieroelen und Heizoelen |
DE960756C (de) * | 1953-05-25 | 1957-03-28 | Bataafsche Petroleum | Schmiermittel |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1160967B (de) * | 1960-06-15 | 1964-01-09 | Shell Int Research | Schmiermittel |
DE2926474A1 (de) * | 1979-06-30 | 1981-01-08 | Servo B V | Kristallisationsinhibitoren fuer paraffinhaltige rohoele |
Also Published As
Publication number | Publication date |
---|---|
DE1053699B (de) | 1959-03-26 |
DE1053700B (de) | 1959-03-26 |
BE551242A (de) | |
GB799036A (en) | 1958-07-30 |
GB799037A (en) | 1958-07-30 |
NL102108C (de) | |
FR1158245A (fr) | 1958-06-12 |
NL102109C (de) | |
GB810685A (en) | 1959-03-18 |
US2958660A (en) | 1960-11-01 |
NL102110C (de) |
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