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DE1038222B - Brake fluids - Google Patents

Brake fluids

Info

Publication number
DE1038222B
DE1038222B DEW16644A DEW0016644A DE1038222B DE 1038222 B DE1038222 B DE 1038222B DE W16644 A DEW16644 A DE W16644A DE W0016644 A DEW0016644 A DE W0016644A DE 1038222 B DE1038222 B DE 1038222B
Authority
DE
Germany
Prior art keywords
glycol
volume
alcohol
brake fluid
parts
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
DEW16644A
Other languages
German (de)
Inventor
George L Doelling
Chester B Swander
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.)
Wagner Electric Corp
Original Assignee
Wagner Electric Corp
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 claimed from US429390A external-priority patent/US2803605A/en
Application filed by Wagner Electric Corp filed Critical Wagner Electric Corp
Publication of DE1038222B publication Critical patent/DE1038222B/en
Pending legal-status Critical Current

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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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
    • C10M2201/083—Inorganic acids or salts thereof containing nitrogen nitrites
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/085—Phosphorus oxides, acids or salts
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/06—Well-defined aromatic compounds
    • 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
    • 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
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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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
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/024—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings having at least two phenol groups but no condensed ring
    • 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
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/046—Hydroxy ethers
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2207/283—Esters of polyhydroxy compounds
    • 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
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    • 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
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
    • 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
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    • 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
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/26—Amines
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/042—Metal salts thereof
    • C—CHEMISTRY; METALLURGY
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • 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

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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

DEUTSCHESGERMAN

Die Erfindung betrifft eine Bremsflüssigkeit nach Patentanmeldung W 11857 IVc/23c.The invention relates to a brake fluid according to patent application W 11857 IVc / 23c.

Es ist eine Bremsflüssigkeit auf der Basis von 10 bis 25 Volumprozent Mono- und Diricinoleaten aliphatischer Glycole, 3 bis 15 Volumprozent aliphatischen Glycolen, 10 bis 24 Volumprozent 2-Methyl-2,4-pentandiol sowie 45 bis 70 Volumprozent niederen einwertigen Alkoholen (bis Amylalkohol) oder niederen Monoalkyläthern des Mono- bzw. Di-äthylen- oder -propylenglycols bekannt.It is a brake fluid based on 10 to 25 percent by volume of mono- and diricinoleates more aliphatic Glycols, 3 to 15 volume percent aliphatic glycols, 10 to 24 volume percent 2-methyl-2,4-pentanediol and 45 to 70 percent by volume of lower monohydric alcohols (up to amyl alcohol) or lower Monoalkyl ethers of mono- or dietethylene or propylene glycol are known.

Diesen bekannten Bremsflüssigkeiten gegenüber betrifft der Erfindungsgegenstand der Patentanmeldung W 11857 IVc/23c eine Bremsflüssigkeit auf der gleichen Basis mit einem Gehalt von im wesentlichen wasserunlöslichen Polypropylenglycol eines mittleren Molgewichtes von 1000 bis 3000, vorzugsweise etwa 2000.The subject matter of the patent application relates to these known brake fluids W 11857 IVc / 23c a brake fluid on the same Base with a content of essentially water-insoluble polypropylene glycol of a medium Molecular weight from 1000 to 3000, preferably about 2000.

Die erfindungsgemäße Bremsflüssigkeit enthält nun nicht 45 bis 70 Volumteile Alkohol mit bis zu 5 C-Atomen und/oder niederen Monoalkyläthern des Äthylenglycols, Diäthylenglycols, Propylenglycols und Dipropylenglycols gemäß Patentanmeldung W 11857 IVc/23c, sondern statt dessen eine Mischung aus einem Alkohol der allgemeinen Formel C6H13OH mit niederen Monoalkyläthern von Äthylenglycol und Di äthy lenglycol.The brake fluid according to the invention does not contain 45 to 70 parts by volume of alcohol with up to 5 carbon atoms and / or lower monoalkyl ethers of ethylene glycol, diethylene glycol, propylene glycol and dipropylene glycol according to patent application W 11857 IVc / 23c, but instead a mixture of an alcohol of the general formula C 6 H 13 OH with lower monoalkyl ethers of ethylene glycol and diethyl glycol.

Die bevorzugte Zusammensetzung besteht aus 5 bis 20 Volumprozent eines Ricinoleates eines Glycols, das ein aliphatisches Glycol mit nicht mehr als 5 Kohlenstoffatomen je Mol ist, aus 5 bis 20 Volumprozent eines wasserunlöslichen Polypropylenglycols mit einem durchschnittlichen Molgewicht von 1000 bis 3000, aus 50 bis 75 Volumprozent eines Verdünnungsmittels aus niederem Monoalkyläther von Äthylen- und Diäthylenglycol plus 15 bis 35 Volumprozent, vorzugsweise aber 21 Volumprozent Methylisobutylcarbinol; aus 5 bis 15 Volumprozent mindestens eines Glycols aus der Gruppe der Propylenglycole, Butylenglycole und Hexylenglycole und aus einem Korrosionsschutzmittel sowie einem Oxydationsschutzmittel. The preferred composition consists of 5 to 20 percent by volume of a ricinoleate of a glycol, which is an aliphatic glycol having no more than 5 carbon atoms per mole, from 5 to 20 percent by volume of a water-insoluble polypropylene glycol with an average molecular weight of 1000 up to 3000, from 50 to 75 percent by volume of a diluent from lower monoalkyl ether of ethylene and diethylene glycol plus 15 to 35 volume percent, but preferably 21 volume percent, methyl isobutylcarbinol; from 5 to 15 percent by volume of at least one glycol from the group of propylene glycols, Butylene glycols and hexylene glycols and from an anti-corrosion agent and an anti-oxidation agent.

Es wurde gefunden, daß der Zusatz von Methylisobutylcarbinol (MIBC) als ein Teil des Verdünnungsmittels der Flüssigkeit unerwartete gute Ergebnisse zeitigt. Methylisobutylcarbinol ist ein Hexanol und ein verhältnismäßig preiswertes Verflüssigungsmittel. It has been found that the addition of methyl isobutyl carbinol (MIBC) as part of the liquid diluent gave unexpected good results leads to. Methyl isobutyl carbinol is a hexanol and a relatively inexpensive liquefying agent.

Die Mengen der bei der erfindungsgemäßen Masse verwendeten Bestandteile sind von Bedeutung. Die beanspruchten Mengen sind gewählt, weil alle die zahlreichen Erfordernisse einer praktisch verwendbaren Bremsflüssigkeit nicht zufriedenstellend erhalten werden, wenn diese Mengen nicht vorhanden sind.The amounts of the ingredients used in the composition of the invention are important. the claimed amounts are chosen because all of the numerous requirements of practical use Brake fluid cannot be satisfactorily obtained if these quantities are not available are.

BremsflüssigkeitenBrake fluids

Zusatz zur Zusatzpatentanmeldung W 11857 IVc/23c (Auslegeschxift 1 031 921)Addition to additional patent application W 11857 IVc / 23c (Auslegeschift 1 031 921)

Anmelder:Applicant:

Wagner Electric Corporation, St. Louis, Mo. (V. St. A.)Wagner Electric Corporation, St. Louis, Mo. (V. St. A.)

Vertreter: Dr.-Ing. H. Ruschke, Berlin-Friedenau, und Dipl.-Ing. K. Grentzenberg, München 27,Representative: Dr.-Ing. H. Ruschke, Berlin-Friedenau, and Dipl.-Ing. K. Grentzenberg, Munich 27,

Pienzenauerstr. 2, PatentanwältePienzenauerstr. 2, patent attorneys

Beanspruchte Priorität: V. St. v. Amerika vom 12. Mai 1954Claimed priority: V. St. v. America May 12, 1954

George L. Doelling und Chester B. Swander,George L. Doelling and Chester B. Swander,

St. Louis, Mo. (V. St. A.), sind als Erfinder genannt wordenSt. Louis, Mo. (V. St. A.) have been named as inventors

Beispiel 1example 1

VolumprozentVolume percentage

Methylisobutylcarbinol 21,0Methyl isobutyl carbinol 21.0

Diäthylenglycolmonoäthyläther 39,2Diethylene glycol monoethyl ether 39.2

Polypropylenglycol (Molgewicht 2000) 9,0Polypropylene glycol (molecular weight 2000) 9.0

2-Methyl-2,4-Pentanädiol 12,02-methyl-2,4-pentanediol 12.0

Propylenglycol 5,5Propylene glycol 5.5

Propylenglycolmonoricinoleat 12,5Propylene glycol monoricinoleate 12.5

Diphenylpropan 0,3Diphenylpropane 0.3

Kaliumricinoleat 0,7Potassium ricinoleate 0.7

Annähernd 100 ecm der Bremsflüssigkeit aus obigen Bestandteilen hatten folgende Eigenschaften:Approximately 100 ecm of the brake fluid from the above components had the following properties:

Spezifisches Gewicht bei 20° C .... 0,9470Specific weight at 20 ° C .... 0.9470

Farbe, Parlin-Skala 3Color, Parlin scale 3

pH-Wert, elektrometrisch gemessen . 9,28 pH value, measured electrometrically. 9.28

Säurezahl 0,064Acid number 0.064

Viskosität bei 37,8° C 1,7° EViscosity at 37.8 ° C 1.7 ° E

Viskosität bei - 20° C 132° EViscosity at - 20 ° C 132 ° E

Flammpunkt, Cleveland 67° CFlash point, Cleveland 67 ° C

Siedepunkt, SAE-Verfahren 163° CBoiling point, SAE process 163 ° C

Kautschukschwellung, 5 Tage bei 70° C 0,8382 mm Gefrierversuch, 6 Std. bei — 30° C flüssigRubber swelling, 5 days at 70 ° C 0.8382 mm freezing test, 6 hours at - 30 ° C liquid

Der Korrosionsversuch nach der SAE-Vorschrift R 1 für hydraulische Bremsflüssigkeiten wurde mit dieser Flüssigkeit während der Dauer von 5 Tagen bei 98,9° C ausgeführt. Der Aluminiumstreifen undThe corrosion test according to SAE regulation R 1 for hydraulic brake fluids was with this liquid was carried out at 98.9 ° C. for a period of 5 days. The aluminum strip and

SW 60O/44OSW 60O / 44O

der Zinnstreifen zeigten während dieses Versuches keinen Gewichtsverlust; Stahl, Gußeisen und Kupfer verloren nur etwa 0,03 Milligramm je cm2, der Messingstreifen verlor etwa 0,06 Milligramm je cm2 an Gewicht. Der SAE-pH-Wert der Flüssigkeit nach dem Korrosionsversuch betrug 7,6. Diese Versuche liegen leicht innerhalb der Erfordernisse der SAE-Vorschriften. the tin strips showed no weight loss during this experiment; Steel, cast iron and copper lost only about 0.03 milligrams per cm 2 , the brass strip lost about 0.06 milligrams per cm 2 . The SAE-p H value of the liquid after the corrosion test was 7.6. These attempts are easily within the requirements of the SAE regulations.

Ein Kolbenversuch wurde an dieser Flüssigkeit nach der SAE-Vorschrift 70Rl für hydraulische Bremsflüssigkeiten ausgeführt, um den Schmierwert in einer Bremsanlage zu bestimmen. Die Versuche zeigten, daß diese Flüssigkeit einen zufriedenstellenden Schmierwert hat. Der Verschleiß an dem aus Aluminium bestehenden Versuchskolben schwankte zwischen 0,0025 bis 0,0889 Millimeter. Der Kolben war poliert. Es erfolgte kein Festfressen oder Anrauhen der Flächen.A piston test was carried out on this fluid in accordance with SAE regulation 70Rl for hydraulic Brake fluids run to determine the lubricity value in a brake system. The trials showed that this liquid has a satisfactory lubricating value. The wear and tear on that out Existing aluminum test pistons varied between 0.0025 to 0.0889 millimeters. The piston was polished. There was no seizing or roughening of the surfaces.

Die Flüssigkeit wurde in verschiedenen Versuchswagen für eine ziemlich lange Dauer im üblichen Betrieb erprobt und ergab gute Erfolge, die zeigten, daß es sich um eine praktisch verwendbare hydraulische Bremsflüssigkeit handelt.The liquid was used in various test vehicles for a fairly long period of time Tried and tested operation and showed good results, which showed that it is a practically usable hydraulic Brake fluid.

Beispiel 2Example 2

VolumprozentVolume percentage

Methylisobutylcarbinol 24,5Methyl isobutyl carbinol 24.5

Diäthylenglykolmonoäthyläther 30,5Diethylene glycol monoethyl ether 30.5

Polypropylenglykol (Molgewicht 2000) 9,0Polypropylene glycol (molecular weight 2000) 9.0

2-Methyl-2,4 Pentanädiol 16,82-methyl-2,4 pentanediol 16.8

Propylenglykol 5,3Propylene glycol 5.3

Propylenglykohnonoricinoleat 12,5Propylene glycol noricin oleate 12.5

Tricresylphosphat 0,4Tricresyl phosphate 0.4

Diphenylpropan 0,3Diphenylpropane 0.3

Kaliumricinoleat 0,7Potassium ricinoleate 0.7

Annähernd 100 ecm der Bremsflüssigkeit aus den obigen Bestandteilen hatten folgende Eigenschaften:Approximately 100 ecm of the brake fluid from the above components had the following properties:

Spezifisches Gewicht bei 20° CSpecific weight at 20 ° C

0,93780.9378

Flammpunkt, Cleveland 67° CFlash point, Cleveland 67 ° C

Siedepunkt, SAE-Verfahren 162° CBoiling point, SAE process 162 ° C

Gefrierversuch, 6 Std. bei — 40° C leicht flüssig Kautschukschwellung,Freezing test, 6 hours at - 40 ° C, slightly liquid Rubber swelling,

5 Tage bei 21° C 0.889 mm5 days at 21 ° C 0.889 mm

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Bremsflüssigkeiten nach Patentanmeldung W 11857 IVc/23 c, dadurch gekennzeichnet, daß dieselbe an Stelle von 45 bis 70 Volumteilen Alkohol mit bis zu 5 C-Atomen und/oder niederen Monoalkyläthern des Äthylenglycols, Diäthylenglycols, Propylenglycols und Dipropylenglycols eine Mischung aus einem Alkohol der allgemeinen Formel C6H13OH mit niederen Monoalkyläthern von Äthylenglycol und Diäthylenglycol enthält.1. Brake fluids according to patent application W 11857 IVc / 23 c, characterized in that the same instead of 45 to 70 parts by volume of alcohol with up to 5 carbon atoms and / or lower monoalkyl ethers of ethylene glycol, diethylene glycol, propylene glycol and dipropylene glycol is a mixture of an alcohol of the general formula C 6 H 13 OH with lower monoalkyl ethers of ethylene glycol and diethylene glycol. 2. Bremsflüssigkeit nach Anspruch 1, gekennzeichnet durch einen Gehalt eines Gemisches aus 15 bis 35 Volumteilen Alkohol der Formel C6H13OH und aus 20 bis 45 Volumteilen des Monoäthylenäthers von Diäthylenglycol.2. Brake fluid according to claim 1, characterized by a content of a mixture of 15 to 35 parts by volume of alcohol of the formula C 6 H 13 OH and 20 to 45 parts by volume of the monoethylene ether of diethylene glycol. 3. Bremsflüssigkeit nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Alkohol Methylisobutylcarbinol ist.3. Brake fluid according to claim 1 or 2, characterized in that the alcohol is methyl isobutyl carbinol is. In Betracht gezogene Druckschriften:
Deutsche Patentschrift Nr. 850 053;
französische Patentschrift Nr. 976 467.Considered publications:
German Patent No. 850 053;
French patent specification No. 976 467. 809 600/440 9.58809 600/440 9.58
DEW16644A 1952-08-09 1955-05-07 Brake fluids Pending DE1038222B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US744385XA 1952-08-09 1952-08-09
US429390A US2803605A (en) 1954-05-12 1954-05-12 Brake fluid

Publications (1)

Publication Number Publication Date
DE1038222B true DE1038222B (en) 1958-09-04

Family

ID=26755667

Family Applications (2)

Application Number Title Priority Date Filing Date
DEW11857A Pending DE1031921B (en) 1952-08-09 1953-08-06 Brake fluids
DEW16644A Pending DE1038222B (en) 1952-08-09 1955-05-07 Brake fluids

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEW11857A Pending DE1031921B (en) 1952-08-09 1953-08-06 Brake fluids

Country Status (3)

Country Link
DE (2) DE1031921B (en)
FR (2) FR1088271A (en)
GB (2) GB744385A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918052A (en) * 1957-03-14 1959-12-22 Armour Res Found Heat-releasing anti-icing means
BE581961A (en) * 1958-08-27
FR1230466A (en) * 1958-11-06 1960-09-16 Inst Francais Du Petrole New polymerization products, their preparation and uses, in particular as constituents of hydraulic fluids
DE1218096B (en) * 1961-07-26 1966-06-02 Huels Chemische Werke Ag Hydraulic fluid

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976467A (en) * 1948-01-19 1951-03-19 Wagner Electric Corp Fluid that can be used in hydraulic braking systems and devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976467A (en) * 1948-01-19 1951-03-19 Wagner Electric Corp Fluid that can be used in hydraulic braking systems and devices
DE850053C (en) * 1948-01-19 1952-09-22 Wagner Electric Corp Brake fluids

Also Published As

Publication number Publication date
FR1088271A (en) 1955-03-04
FR67848E (en) 1958-03-24
GB783311A (en) 1957-09-18
DE1031921B (en) 1958-06-12
GB744385A (en) 1956-02-08

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