DE1253396B - Hydraulische Fluessigkeit - Google Patents

Hydraulische Fluessigkeit

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Publication number
DE1253396B
DE1253396B DES90892A DES0090892A DE1253396B DE 1253396 B DE1253396 B DE 1253396B DE S90892 A DES90892 A DE S90892A DE S0090892 A DES0090892 A DE S0090892A DE 1253396 B DE1253396 B DE 1253396B
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Germany
Prior art keywords
percent
volume
viscosity
sus
mixture
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Pending
Application number
DES90892A
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English (en)
Inventor
Thomas Jefferson Akers
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 Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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Publication of DE1253396B publication Critical patent/DE1253396B/de
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    • C10M2225/04—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions obtained by phosphorisation of macromolecualr compounds not containing phosphorus in the monomers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/241—Manufacturing joint-less pipes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/242—Hot working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/243—Cold working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/245—Soft metals, e.g. aluminum
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/246—Iron or steel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/247—Stainless steel

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

Description

DEUTSCHES Mi PATENTAMT
AUSLEGESCHRIFT
Deutsche Kl.: 23 c - 5
Nummer: 1253 396
Aktenzeichen: S 90892IV c/23 c
1 253 396 Anmeldetag: 30. April 1964
Auslegetag: 2. November 1967
Hydraulische Flüssigkeit
Die üblichen Transmissionssysteme erfordern Transmissionsflüssigkeiten, welche innerhalb weiter Temperaturbereiche von etwa —54° C bis zu hohen Temperaturen, wie +177 0C und höher, wirken. Solche Flüssigkeitsmischungen müssen nicht nur sehr gutes Schmiervermögen innerhalb dieses Temperaturbereiches aufweisen, sondern sie müssen auch die Bildung von Verunreinigungen und Beschädigungen sowohl bei den Metall- als auch bei den Nichtmetallteilen verhindern, welche verursacht werden können durch Abnutzung, Korrosion und Anfressen der Metalloberfläche und den Abbau und das Quellen von Kautschuk und anderen nichtmetallischen Teilen solcher Systeme.
Transmissionsflüssigkeiten auf Mineralölbasis besitzen ernstliche Nachteile, wie ihre Neigung zum Quellen von Kautschukteilen, zum Schäumen und dem Erfordernis übermäßig großer Mengen von VI-Verbesserern, um den gewünschten Viskositäts-Temperatur-(VT)-Forderungen zu entsprechen.
Es ist nun gefunden worden, daß durch Vermischen zweier spezieller Mineralölfraktionen in bestimmten Mengenverhältnissen eine Grundmischung erhalten wird, weiche vorzüglich weiten Viskositäts-Temperatur-Anforderungen für Transmissionsflüssigkeiten genügt, das Schäumen sowie auch das Quellen von Kautschuk verhindert und als verbessertes Lösungsmittel sowie als Aktivator für Zusatzstoffe wirkt, z. B. VI-Verbesserer und Reinigungsmittel, die im allgemeinen solchen Flüssigkeiten in Mengen von 1 bis 10 Gewichtsprozent zugesetzt werden.
Die hydraulische Flüssigkeit besteht aus einem Gemisch aus 15 bis 85 Volumprozent eines Mineral-Öles mit einem Viskositätsindex von 30 bis 50, einem Aromatengehalt von 5 bis 15% und einer Viskosität von 50 bis 150 SUS bei 37,8°C und 85 bis 15 Volum-Anmelder:
Shell Internationale Research Maatschappij N.V., Den Haag
Vertreter:
Dr. E. Jung, Patentanwalt,
München 23, Siegesstr. 26
Als Erfinder benannt:
Thomas Jefferson Akers,
East Alton, JlL (V. St. A.)
Beanspruchte Priorität:
V. St. v. Amerika vom 3. Mai 1963 (277 727)
prozent eines Mineralöles mit einem Viskositätsindex so über 85, vorzugsweise von 110 bis 150, einem Aromatengehalt von 15 bis 30% und einer Viskosität von bis 250 SUS, vorzugsweise von 80 bis 250 SUS bei 37,8 cC Diesem Mineralölgemisch werden 1 bis 10 Gewichtsprozent eines Viskositätsindexverbesserers und/ oder ein als Reinigungsmittel wirkendes Polymerisat zugesetzt.
Diese erfindungsgemäßen Gemische ergeben bessere Tieftemperatur- und Hochtemperaturviskositäten, als mit den einzelnen Bestandteilen erzielt werden können.
Beide ölfraktionen sind mit Lösungsmitteln raffiniert worden unter Verwendung von Hilfsmitteln, wie Propan- oder Methyläthylketon, Entparaffinieren, gefolgt von einer Behandlung mit einem Lösungsmittel, wie Phenol, Schwefeldioxyd oder Furfurol bei Temperaturen von 35 bis 65°C und einem Lösungsmittel-zu-öl-Verhältnis von 2:1 bzw. bis 5:1.
Tabelle I
Eigenschaften IA IIA IIB IIC
Spezifisches Gewicht, 0API bei 15,6° C 28,3 32,0 36,2 39,1
Viskosität, SUS
bei 99,8 0C 38,8 41,4 34,9 31,6
bei 37,8 0C 100 56 43 100
Viskositätsindex 44 89 88 90
Spezifische Dispergierung 103 109 101 103
87,8 99,8 95,0 90,0
Flammpunkt, cC 171,1 201,7 168,3 154,4
Stockpunkt, 0C -34,4 -12,2 -15,0 -12,2
Schwefel, Gewichtsprozent 0,10 0,08 0,00 0,00
Stickstoff, ppm 27
IA und IIA bis II C sind Ausgangsfraktionen.
709 680/383

Claims (1)

  1. Als Zusatzmittel werden ζ. Β. öllösliche Polymere und Copolymere von Estern aus einer Acrylsäure und einem C4 — C20-Alkanol verwendet. Bevorzugt werden die polymeren Ester von Methacrylsäure mit nur einwertigen Alkoholen mit 8 bis 18 Kohlenstoffatomen im Molekül (Molekulargewicht 5000 bis 20 000), die in der USA.-Patentschrift 2 710 842 beschrieben sind. Ein Poly-(C8 — Ci 8-alkylmethacrylatester) (X) — Molekulargewicht 10 000 bis 15 000 — wird besonders bevorzugt.
    Als Reinigungsmittel werden stickstoffhaltige Copolymere von polymerisierbaren Monomeren mit stickstoffhaltigen Gruppen, wie Amino- oder Amidogruppen, verwendet. Bevorzugt sind Amino- oder Amidoverbindungen mit tertiären oder heterocyclischen Aminogruppen.
    Diese Mischpolymerisate haben ein Molekulargewicht von 300 000 bis 1 000 000, vorzugsweise von 400 000 bis 800 000.
    Andere Zusatzstoffe können ebenfalls zugegeben werden, z. B. Erdölsulfonate, Dialkyldithiophosphate, Dialkyldithiocarbamate, Metallsalze von Fettsäuren, organische Amine und Alkylphenole. Bevorzugt werden Zink- und Barium-dialkyl-dithiophosphat und Cd-, Ba- oder Zn-Erdölsulfonat, carbonisiertes basisches Barium- und Zinksalz von P2S6-Olefinreaktionsprodukt verwendet.
    Die Menge dieser Zusatzstoffe kann variieren von 0,1 bis 10 Gewichtsprozent.
    Beispiel
    MischungA
    35 Volumprozent von IA,
    65 Volumprozent von IIA;
    Mischung B
    70 Volumprozent von IA,
    30 Volumprozent von II B;
    Mischung C
    85 Volumprozent von IA,
    15 Volumprozent von HC.
    Die Viskosität jeder Mischung bei 99,8 °C wurde auf etwa 50 SUS eingestellt mit einem Methacrylatpolymeren, und die Viskosität bei niederer Temperatur wurde bestimmt mit einem BrookfieId-Viskosimeter. Vergleichsmischungen, welche die Bestandteile allein oder vermischt mit 25 Volumprozent eines leichten Mineralöls (45 SUS bei 37,8°C, Stockpunkt <-30°C, Anilinpunkt 80° C) enthielten, wurden zum Vergleich angeführt.
    Die Verbesserungen, welche bei Anwendung der hydraulischen Flüssigkeiten gemäß vorliegender Erfindung erzielt werden, sind aus den nachstehenden Daten in Tabelle II ersichtlich.
    TabeUe II
    Grundlage Viskosität SUS
    bei 37,8° C     Gewichtsprozent
    Methacrylat-
    Polymeres (X)
    bis etwa 50 SUS
    bei 99,8°C     Brookfield-Viskosität
    cPbei -40° C     1. IA 100 4,0 41000 2. 75 Volumprozent
    leichtes Mineralöl     von IA -f- 25 Volumprozent     80 5,7 21000 3. IIA 100 4,0 45 000 4. 75 Volumprozent
    leichtes Mineralöl     von IIA + 25 Volumprozent     80 6,6 93 000 5. 80 6,2 14000 6. 80 5,7 16 000 7. 80 5,7 15 000
    Patentanspruch:
    Hydraulische Flüssigkeit, bestehend aus einem Gemisch zweier bekannter Mineralöle und üblicher Zusatzmittel, dadurch gekennzeichnet, daß sie ein Gemisch aus 15 bis 85 Volumprozent eines Mineralöls mit einem Viskositätsindex von 30 bis 50, einem Aromatengehalt von 5 bis 15 °/o und einer Viskosität von 50 bis 150 SUS bei 37,8°C und 85 bis 15 Volumprozent eines Mineralöls mit einem Viskositätsindex über 85, einem Aromatengehalt von 15 bis 30% und einer Viskosität von 43 bis 250 SUS bei 37,8 0C enthält.
    709 680/383 10.67 Q Bundesdruckerei Berlin
DES90892A 1963-05-03 1964-04-30 Hydraulische Fluessigkeit Pending DE1253396B (de)

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US3853773A (en) * 1972-12-26 1974-12-10 Ibm Anti-gum and solvating lubricant
US4849123A (en) * 1986-05-29 1989-07-18 The Lubrizol Corporation Drive train fluids comprising oil-soluble transition metal compounds
US5520832A (en) * 1994-10-28 1996-05-28 Exxon Research And Engineering Company Tractor hydraulic fluid with wide temperature range (Law180)
US6034040A (en) * 1998-08-03 2000-03-07 Ethyl Corporation Lubricating oil formulations

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US2407954A (en) * 1942-05-23 1946-09-17 Rohm & Haas Lubricating composition
US2710842A (en) * 1950-05-19 1955-06-14 Texas Co Hydraulic transmission fluid
US2737496A (en) * 1952-02-16 1956-03-06 Du Pont Lubricating oil compositions containing polymeric additives
GB801151A (en) * 1955-01-27 1958-09-10 Lubrizol Corp Gear lubricant improving agents
US2839512A (en) * 1955-12-30 1958-06-17 Shell Dev Vinylpyridine long chain acrylic ester copolymers and their preparation
GB808665A (en) * 1956-03-23 1959-02-11 Exxon Research Engineering Co Oils containing copolymers
US2889282A (en) * 1956-09-17 1959-06-02 Shell Dev Lubricating oil compositions

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