DE1275242B - Bremsfluessigkeiten - Google Patents

Bremsfluessigkeiten

Info

Publication number
DE1275242B
DE1275242B DEF38492A DEF0038492A DE1275242B DE 1275242 B DE1275242 B DE 1275242B DE F38492 A DEF38492 A DE F38492A DE F0038492 A DEF0038492 A DE F0038492A DE 1275242 B DE1275242 B DE 1275242B
Authority
DE
Germany
Prior art keywords
brake fluids
polyglycol
alkylene glycols
alkylene
brake
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
DEF38492A
Other languages
English (en)
Inventor
Wolfgang Knoblauch
Dr Johannes Evangelist Miller
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.)
ALLFRED TEVES MASCHINEN und AR
Hoechst AG
Original Assignee
ALLFRED TEVES MASCHINEN und AR
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
Priority to NL134095D priority Critical patent/NL134095C/xx
Priority to NL301485D priority patent/NL301485A/xx
Application filed by ALLFRED TEVES MASCHINEN und AR, Hoechst AG filed Critical ALLFRED TEVES MASCHINEN und AR
Priority to DEF38492A priority patent/DE1275242B/de
Priority to FR956263A priority patent/FR1376346A/fr
Priority to GB48527/63A priority patent/GB1075761A/en
Priority to BE641017A priority patent/BE641017A/xx
Publication of DE1275242B publication Critical patent/DE1275242B/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M3/00—Liquid 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/106—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing four carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • C10M2227/062—Cyclic esters
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • 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

Landscapes

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

Description

BUNDESREPUBLIK DEUTSCHLAND
DEUTSCHES
PATENTAMT
AUSLEGESCHRIFT
Int. Cl.:
ClOm
Deutsche Kl.: 23 c-5
Nummer: 1275 242
Aktenzeichen: P 12 75 242.0-43 (F 38492)
Anmeldetag: 7. Dezember 1962
Auslegetag: 14. August 1968
Für Flüssigkeiten zur Betätigung von Bremsen aller Art werden nach den neuzeitlichen Spezifikationen (SAE 70 R3 und SAE 71 R) hohe Wärmestabilitäten und gleichzeitig hohe Siedepunkte gefordert. Es muß nach diesen Vorschriften z. B. eine Scheibenbremsflüssigkeit einen Siedepunkt von mindestens 260° C besitzen. Andererseits wird für solche Flüssigkeiten ein solches Wasseraufnahmevermögen gewünscht, daß Spuren von Wasser den Siedepunkt praktisch nicht erniedrigen.
Die derzeit besten Bremsflüssigkeiten bestehen aus Gemischen von Alkylenglykolen und Alkylenglykoläthern bzw. Kondensationsprodukten von Fettsäuren mit Alkylenglykolen oder mehrwertigen Alkoholen. Überwiegend enthalten diese Flüssigkeiten Derivate des Äthylenoxyds, welche das Wasseraufnahmevermögen dieser Bremsflüssigkeiten bewirken, weil sie selbst stark hygroskopisch sind.
Es wurde nun gefunden, daß man Bremsflüssigkeiten auf Basis von Gemischen von Alkylenglykolen und Alkylenglykolderivaten mit hervorragender Thermostabilität erhält, indem man Gemische verwendet, bei denen mindestens eine Komponente als endständiges Glied der Äthylenglykolätherkette eine Propoxy- bzw. Butoxygruppe besitzt. In Fällen wie beim Polyäthylenglykol mit mittlerem Molekulargewicht 200 wird durch beiderseitigen Verschluß der Kette mit einem Propylenrest die Thermostabilität außerordentlich verbessert.
Die Herstellung der für die neue Bremsflüssigkeit bestimmten, endständig oxpropylierten oder oxbutylierten Polyalkylenglykoläther und Polyalkylenglykolätherderivate erfolgt nach den bekannten Methoden.
Bremsflüssigkeiten
Anmelder:
Farbwerke Hoechst Aktiengesellschaft, vormals Meister Lucius & Brüning, 6000 Frankfurt;
Alfred Teves Maschinen- und Armaturenfabrik Kommandit-Gesellschaft, 6000 Frankfurt
Als Erfinder benannt:
Dr. Johannes Evangelist Miller f, 8261 Burgkirchen;
Wolfgang Knoblauch, 8263 Burghausen
Die Thermostabilität der Bestandteile der neuen Bremsflüssigkeiten wird bestimmt, indem man die Flüssigkeiten in einem nach SAE standardisierten Ofen bei 100° C über einen Zeitraum von beispielsweise 330 Stunden ausmißt. Die so erhaltenen Meßwerte für eine Anzahl von bekannten und von im Sinne der Erfindung modifizierten Bremsflüssigkeitsbestandteilen sind in der anschließenden Tabelle zusammengestellt.
Die Hygroskopizität wird bestimmt, indem man Petrischalen vom Durchmesser 70 mm mit etwa 2 bis g der Flüssigkeit beschickt und 192 Stunden einer relativen Luftfeuchtigkeit von 80% aussetzt, bevor man mißt.
Viskosität, 20° C
cSt
Verdampfung
330 Stunden/1000 C
in °/o
Hygroskopizität 192Stunden/8O»/oLF
in«/o
Diglykol
Diglykol + 2 Mol C3H6O
Triglykol
Triglykol + 2 Mol C3H6O
Polyglykol Molekulargewicht 200
Polyglykol Molekulargewicht 200 + 2 Mol C3H6O ..
Äthylpolyglykol
Äthylpolyglykol + 1 Mol C3H6O
Butylpolyglykol
Butylpolyglykol + 1 Mol C3H6O
Methylpolyglykol
Methylpolyglykol + 1 Mol C3H6O
33,2
77,0
43,9
90,0
56,3
106,4
6,2
11,0
9,98
14,9
4,24
8,96
100
62,2
95,4
16,2
81,9
7,9
100
96,7
100
95,6
100
97,7
45,7 25,1
41,0 25,1
31,4 26,1
25,8 21,0
15,4 11,1
25,7 21,1
809 590/423

Claims (1)

  1. 3 4
    Patentanspruch: Alkoholen, dadurch gekennzeichnet,
    Bremsflüssigkeiten auf der Basis von Ge- daß sie Gemische enthalten, bei denen mindestens
    mischen von Alkylenglykolen, Alkylenglykol- eine Komponente als endständiges Glied der Al-
    äthern und Kondensationsprodukten von Fett- kylenglykolätherkette eine Propoxy- bzw. But-
    säuren mit Alkylenglykolen oder mehrwertigen 5 oxygruppe besitzt.
    809 590/423 8.68 © Bundesdruckerei Berlin
DEF38492A 1962-12-07 1962-12-07 Bremsfluessigkeiten Pending DE1275242B (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL134095D NL134095C (de) 1962-12-07
NL301485D NL301485A (de) 1962-12-07
DEF38492A DE1275242B (de) 1962-12-07 1962-12-07 Bremsfluessigkeiten
FR956263A FR1376346A (fr) 1962-12-07 1963-12-06 Liquides pour freins
GB48527/63A GB1075761A (en) 1962-12-07 1963-12-09 Brake fluids
BE641017A BE641017A (de) 1962-12-07 1963-12-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF38492A DE1275242B (de) 1962-12-07 1962-12-07 Bremsfluessigkeiten

Publications (1)

Publication Number Publication Date
DE1275242B true DE1275242B (de) 1968-08-14

Family

ID=7097366

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF38492A Pending DE1275242B (de) 1962-12-07 1962-12-07 Bremsfluessigkeiten

Country Status (4)

Country Link
BE (1) BE641017A (de)
DE (1) DE1275242B (de)
GB (1) GB1075761A (de)
NL (2) NL134095C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440236B2 (de) * 1975-07-22 1979-12-03

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010540728A (ja) * 2007-09-28 2010-12-24 ダウ グローバル テクノロジーズ インコーポレイティド 機能性流体組成物

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440236B2 (de) * 1975-07-22 1979-12-03

Also Published As

Publication number Publication date
BE641017A (de) 1964-06-09
GB1075761A (en) 1967-07-12
NL301485A (de)
NL134095C (de)

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