DE1279876B - Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in hydrodynamischen Fluessigkeiten - Google Patents

Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in hydrodynamischen Fluessigkeiten

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Publication number
DE1279876B
DE1279876B DEF36156A DEF0036156A DE1279876B DE 1279876 B DE1279876 B DE 1279876B DE F36156 A DEF36156 A DE F36156A DE F0036156 A DEF0036156 A DE F0036156A DE 1279876 B DE1279876 B DE 1279876B
Authority
DE
Germany
Prior art keywords
products
anhydro
glycerine
derivatives
hydrodynamic
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
DEF36156A
Other languages
English (en)
Inventor
Dr Johannes E Miller
Dr Werner Wolff
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Priority to DEF36156A priority Critical patent/DE1279876B/de
Priority claimed from DEF36157A external-priority patent/DE1277489B/de
Priority to FR926468A priority patent/FR1351742A/fr
Priority to GB8367/63A priority patent/GB1033658A/en
Publication of DE1279876B publication Critical patent/DE1279876B/de
Pending legal-status Critical Current

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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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  • Chemical & Material Sciences (AREA)
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

BUNDESREPUBLIK DEUTSCHLAND
DEUTSCHES
PATENTAMT
AUSLEGESCHRIFT
Int. Cl.:
ClOm
Deutsche Kl.: 23 c - 5
Nummer: 1279 876
Aktenzeichen: P 12 79 876.4-43 (F 36156)
Anmeldetag: 1. März 1962
Auslegetag: 10. Oktober 1968
Glykole bzw. Glykoläther werden gewöhnlich als Oasis für hydrodynamische Flüssigkeiten verwendet.
Es wurde nun gefunden, daß sich die Eigenschaften dieser Produkte wesentlich verbessern lassen, wenn man hierzu Anhydroprodukte des Glycerins, deren Ester mit höheren Fettsäuren oder Oxyfettsäuren oder den Kondensationsprodukten dieser Anhydroprodukte oder ihrer Ester mit Alkylenoxyden in kleinen Mengen als schmierende und korrosionshindemde Zusätze zu hydrodynamischen Flüssigkeiten auf Basis von GIykolen und/oder Glykoläthern zusetzt. Dabei handelt es sich z. B. um Diglycerin oder Polyglycerine, gewonnen durch Abspaltung von Wasser aus 2 oder mehr Mol Glycerin, ferner Äther von Diglyeerin und Polyglycerinen mit niederen Alkoholen bzw. ihre Ester mit niederen einwertigen Säuren,= Äther von Polyglycerinen mit Alkylenoxyden, insbesondere Äthylenoxyd, Propylenoxyd, Butylenoxyd, sowie Ester von Polyglycerinen mit Oxycarbonsäuren, wie Milchsäure, Ricinolsäure, und deren Kondensationsprodukte mit Alkylenoxyden.
Die' erfindungsgemäß anzuwendenden Anhydroprodukte des Glycerins und ihre genannten Derivate enthalten von ihrer Herstellung her kleinste Mengen von Acrolein oder Polymerisations- und/oder Polykondensationsprodukte des Acroleins, und. es wird angenommen, daß die korrosionshiridernde Funktion (^Zusatzstoffe der Erfindung auf dieser Anwesenheit vofi Acrolein beruht. Außerdem haben die Zusatz-Stoffe eine wertvolle Funktion als Schmiermittel.
' Eine hydrodynamische Flüssigkeit auf Basis von Glykolen besitzt bis zur Verschweißüng im Vierkugelapparät eine Schmierfähigkeit,, von 240. bis 260 kg Belastung. Setzt man dieser Flüssigkeit 2 °/0 Diglycerin zu, so wird ihre Schmierfähigkeit auf 320 bis 340 kg Belastung gesteigert. Während die Korrosionswerte der kein Diglycerin enthaltenden Flüssigkeit bei den besonders interessierenden Werkstoffen Weißblech, Gußeisen, Kupfer und Aluminium gerade noch technisch tragbar sind, führt der Zusatz von 2% Diglycerin zu einer erheblichen Absenkung der Korrosionswerte. Diese beachtlichen Verbesserungen lassen sich bereits mit den Anhydroprodukten des technischen Glycerins erreichen, die noch kleine Anteile an aldehydischen und sauren Verunreinigungen sowie den zu ihrer Herstellung verwendeten Katalysator enthalten. Die Zusätze der Erfindung haben daher auch noch den Vorteil besonderer Wirtschaftlichkeit.
Vom analogen Anhydroprodukt des Äthylenglykols, dem Diäthylenglykol, wußte man nur, daß es wenig schmierend wirkt und ziemlich flüchtig j,st;. Es war Verwendung von Anhydroprodukten
des Glycerins bzw. dessen Derivate
in hydrodynamischen Flüssigkeiten
Anmelder:
Farbwerke Hoechst Aktiengesellschaft
vormals Meister Lucius & Brüning,
6230 FrankfurtrHöchst
Als Erfinder benannt:
Dr. Werner Wolff, 8262 Neuötting;
Pr. Johannes fe: "Miller (f), 8261 Burgkirchen
daher1 nicht vorauszusehen, daß die Anhydroprodukte des technischen Glycerins die hydrodynamischen Flüssigkeiten auf Basis von Glykolen und Glykolderivaten so entscheidend zu verbessern vermögen. Die hydrodynamisqhen. Flüssigkeiten der; Erfindung zeichnen sich auch durch günstiges Verhalten iri bezug auf Verdampfung aus.
Kondensationsprodukte des Diglycerins, wie sie durch Anlagerung von 50 bis 100 Mol Propylenoxyd erhalten werden, verleihen den mit ihnen versetzten hydrodynamischen Flüssigkeiten eine sehr flache Temperatur- und Viskositätskurve.
Veresterungsprodukte von Diglycerin oder Polyglycerinen mit Oxycarbonsäuren, beispielsweise Ricinolsäure, die gegebenenfalls anschließend noch mit beispielsweise ihrem eineinhalbfachen Gewicht von
Äthylenoxyd kondensiert werden können, führen ebenfalls zu einer Steigerung der Schmierfähigkeit.
Die hydrodynamischen Flüssigkeiten der Erfindung
sind in erster Linie als Füllung für Getriebe und Flüssigkeitskupplungen bestimmt. Sie eignen sich aber auch als Betriebsflüssigkeiten für hydraulische Pressen, Hebezeuge, Türschließer, Stoßdämpfer, Rohrrückläufe.
809 620/468
Beispiel 1 b
Vergleich
a 		30%
15%
9%
0,02%
Rest
Äthylpolyglykol
Butylpolyglykol
Gemisch Soda—Borsäure
im Verhältnis 5:14
10°/0ig in Diglykol gelöstes
Acrolein
Diglykol-triglykol 		30%
15%
?%
Rest
Beispiel 2 (Fortsetzung)
Korrosionsverhalten. In diesem und den folgenden Beispielen werden Korrosionsteste nach SAE 70 R 3 durchgeführt. Die zusammengeschraubten Metallplättchen werden 5 Tage bei 1000C gehalten; Zu- bzw. Abnahme ist in Milligramm pro Quadratzentimeter Oberfläche angegeben.
Vergleiche
a I b 		0
0
0
0
-1,4
0,159		 C
Korrosion bei
Guß 		0
0
0
0
0,093
0		 0
0
0
0
-0,05
0
Leichtmetall-
Legierung aus
87% Al und 13 %
Silicium*
Stahl 5011
Mn-Bronze
WM 80 (Lager
metall)**
Messing
* Siehe Römpp, Chemie-Lexikon, 6. Auflage, Spalte5954.
** Enthält nach DIN 1703 80% Sn, 10°/0 Cu, 10% Sb,
(s. Römpp, Chemie-Lexikon, 6. Auflage, Spalte3575).
Beispiel
a b
Sn 0 0
Fe 0 0
Guß 0 0
Al 0
-0,153
+0,020
-0,033		 O O O O
Cu
Cd
Messing
Beispiel 2
Vergleiche b C
a
Polyglykol mit 54
Molgewicht 200 60 54
Polyglykol mit 34
Molgewicht 300 40 10 34
Glycerin 100%ig — —
Diglycerinmono-
ricinoleat mit 60% —
Äthylenoxyd — 220/240 10
VKA-Wert 220/240 260/280
Äthylpolyglykol
Butylpolyglykol
Gemisch Soda—Borsäure im Verhältnis 5:14; 10%ig in Diglykol ....
Diglycerin
Di-Triglykol
VKA-Wert
Korrosion bei
Sn
Fe
Guß
Al
Cu
Cd
Messing
Vergleich a
30% 15
Rest 240/260
-0,032
0 -0,045
-0,020 -0,080
30%
15
1,5
Rest
340/360
0 0 0 0
-0,031 0 0

Claims (1)

  1. Patentanspruch:
    Verwendung von Anhydroprodukten des Glycerins, deren Estern mit höheren Fettsäuren oder Oxyfettsäuren oder den Kondensationsprodukten dieser Anhydroprodukte oder ihrer Ester mit Alkylenoxyden in kleinen Mengen als schmierende und korrosionshmdernde Zusätze zu hydrodynamischen Flüssigkeiten auf Basis von Glykolen und/oder Glykoläthern.
    809 620/468 9.68 θ Bundefdruckeiei BerUa
DEF36156A 1962-03-01 1962-03-01 Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in hydrodynamischen Fluessigkeiten Pending DE1279876B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEF36156A DE1279876B (de) 1962-03-01 1962-03-01 Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in hydrodynamischen Fluessigkeiten
FR926468A FR1351742A (fr) 1962-03-01 1963-03-01 Liquides hydrodynamiques améliorés à base de glycols et d'éthers de glycols et leur préparation
GB8367/63A GB1033658A (en) 1962-03-01 1963-03-01 Hydrodynamic fluid compositions based on glycols and/or glycol ethers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF36156A DE1279876B (de) 1962-03-01 1962-03-01 Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in hydrodynamischen Fluessigkeiten
DEF36157A DE1277489B (de) 1962-03-01 1962-03-01 Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in Bremsfluessigkeiten

Publications (1)

Publication Number Publication Date
DE1279876B true DE1279876B (de) 1968-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEF36156A Pending DE1279876B (de) 1962-03-01 1962-03-01 Verwendung von Anhydroprodukten des Glycerins bzw. dessen Derivate in hydrodynamischen Fluessigkeiten

Country Status (2)

Country Link
DE (1) DE1279876B (de)
GB (1) GB1033658A (de)

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Also Published As

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