DE939045C - Hydraulic fluids - Google Patents

Hydraulic fluids

Info

Publication number
DE939045C
DE939045C DEA15191A DEA0015191A DE939045C DE 939045 C DE939045 C DE 939045C DE A15191 A DEA15191 A DE A15191A DE A0015191 A DEA0015191 A DE A0015191A DE 939045 C DE939045 C DE 939045C
Authority
DE
Germany
Prior art keywords
glycol
boric acid
hydraulic fluids
percent
weight
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.)
Expired
Application number
DEA15191A
Other languages
German (de)
Inventor
Hilde Dr Friedrich
Erich Krauspenhaar
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.)
ANORGANA GmbH
Continental Teves AG and Co oHG
Original Assignee
ANORGANA GmbH
Alfred Teves GmbH
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 ANORGANA GmbH, Alfred Teves GmbH filed Critical ANORGANA GmbH
Priority to DEA15191A priority Critical patent/DE939045C/en
Application granted granted Critical
Publication of DE939045C publication Critical patent/DE939045C/en
Expired legal-status Critical Current

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    • 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
    • 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
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/10—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M105/14—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms polyhydroxy
    • 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
    • C10M107/34—Polyoxyalkylenes
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M139/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
    • 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
    • C10M2201/02—Water
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
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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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    • 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
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    • C10M2207/02—Hydroxy compounds
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    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • C10M2207/0225—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups used as base material
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    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/046—Hydroxy ethers
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    • C10M2207/402—Castor oils
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    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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    • 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
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    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
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    • C10M2209/1045—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only used as base material
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    • C10M2209/1075—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106 used as base material
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    • 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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)

Description

' Hydraulische Flüssigkeiten für die Betätigung von Flüssigkeitsbremsen in Kraftfahrzeugen, Steueranlagen auf der Grundlage von Glykol und Polyglykol sowie deren Äthern und/oder Alkoholen sind bekannt. Es ist auch bekannt, daß diese Flüssigkeiten den Nachteil einer geringen Schmierfähigkeit haben, der ihre allgemeine Verwendbarkeit beeinträchtigt.'' Hydraulic fluids for the actuation of fluid brakes in motor vehicles, control systems based on glycol and polyglycol and their ethers and / or alcohols are known. It It is also known that these liquids have the disadvantage of poor lubricity, which is their general usability impaired.

Es wurde gefunden, daß man die Schmierfähigkeit der hydraulischen Flüssigkeiten des gekennzeichneten Typs erhöhen bzw. in weiten Grenzen variieren kann, indem man den Flüssigkeiten Ester der Borsäure mit ein- oder mehrwertigen aliphatischen Alkoholen, Alkanolaminen oder Thiopolyglykolen zusetzt. Als Komponenten werden beispielsweise genannt Äthylenglykol, i, 2-Propylenglykol, 1, 3-Butylenglykol, Di- und Triäthylenglykol, höhere Polyalkylenglykole, Glycerin, Pentaerythrit, wobei das molekulare Verhältnis zwischen Borsäure und Alkoholen beliebig gewählt sein kann.It has been found that the lubricity of the hydraulic fluids of the characterized Type increase or vary within wide limits by adding esters of boric acid to the liquids monohydric or polyhydric aliphatic alcohols, alkanolamines or thiopolyglycols are added. as Components are named for example ethylene glycol, i, 2-propylene glycol, 1,3-butylene glycol, di- and triethylene glycol, higher polyalkylene glycols, glycerol, pentaerythritol, with the molecular ratio can be chosen arbitrarily between boric acid and alcohols.

Die genannten Komponenten brauchen nicht einheitlich an Borsäure gebunden zu sein. Es ist häufig von Vorteil, auch beliebige Gemische der oben angeführten Veresterungskomponenten, z. B. verschiedene Alkohole zur Veresterung zu verwenden. Es kann auch ein Teil der polyvalenten Alkohole durch monovalente ersetzt werden. Weiterhin kann der Ätherbrückensauerstoff in Polyalkylenglykolen durch Schwefel ganz oder teilweise ersetzt sein, so daß ζ. B. an Stelle von Diäthylenglykol Thiodiglykol verwendet werden kann.The components mentioned need not be uniformly bound to boric acid. It is common It is advantageous to also use any mixtures of the esterification components listed above, e.g. B. different To use alcohols for esterification. It can also be part of the polyvalent alcohols be replaced by monovalent ones. Furthermore, the ether bridging oxygen in polyalkylene glycols be replaced in whole or in part by sulfur, so that ζ. B. used instead of diethylene glycol thiodiglycol can be.

Mit einem Zusatz von 5 bis 15 Gewichtsprozent einer solchen Verbindung wird bereits eine wesentliche Erhöhung der Schmierfähigkeit der hydraulischen Flüssigkeit erreicht. Hervorzuheben ist, daß der Zusatz wohl eine gewisse Erhöhung der Viskosität herbeiführt, aber die sonstigen Eigenschaften der hydraulischen Flüssigkeit, insbesondere die Kältebeständigkeit, das Verhalten gegen Gummi und Metalle sowie die Verträglichkeit mit anderen hydraulischen Flüssigkeiten unverändert läßt. Auch die üblichen Korrosionsschutzmittel lassen sich zusammen mit den genannten Borsäureverbindungen unverändert verwenden.With an addition of 5 to 15 percent by weight Such a connection will already significantly increase the lubricity of the hydraulic Liquid reached. It should be emphasized that the addition probably increased the viscosity to some extent brings about, but the other properties of the hydraulic fluid, in particular its resistance to cold, the behavior towards rubber and metals as well as the compatibility with other hydraulic Leaves liquids unchanged. The usual anti-corrosion agents can also be used together with use the named boric acid compounds unchanged.

Beispiele:Examples:

Nachstehend werden einige typische hydraulische Flüssigkeiten nach der Erfindung beschrieben:Some typical hydraulic fluids according to the invention are described below:

i. 55 Gewichtsprozent Triäthylehglykol,
10 - Butylpolyglykol,i. 55 percent by weight triethylene glycol,
10 - butyl polyglycol,

10 - Äthylpolyglykol,10 - ethyl polyglycol,

10 - Methylpolyglykol,10 - methyl polyglycol,

15 , - eines Esters aus gleichen15, - of an ester of the same

Gewichtsprozenten Äthy-Weight percent ethy-

lenglykol und Borsäure.lenglycol and boric acid.

2. 18 Gewichtsprozent Diäthylenglykol,
20 - Triäthylenglykol,2. 18 percent by weight diethylene glycol,
20 - triethylene glycol,

50 - Butylpolyglykol,50 - butyl polyglycol,

5 - Äthylglykol,5 - ethyl glycol,

2 - Ricinusöl,2 - castor oil,

5 - . Borsäure-Triäthanol-.5 -. Boric acid triethanol.

aminester.aminester.

3. 10 Gewichtsprozent Äthylenglykol, 30 - Triäthylenglykol, 10 _ - Diacetonalkohöl, 20 - Methylpolyglykol, 20 - Äthylpolyglykol,3. 10 percent by weight ethylene glycol, 30 - triethylene glycol, 10 _ - diacetone alcohol, 20 - methyl polyglycol, 20 - ethyl polyglycol,

10 - Borsäure-Glycerinester.10 - Boric acid glycerol ester.

4. 60 Gewichtsprozent Triäthylenglykol, 20 - Äthyldiglykol, 10 - Äthylalkohol,4. 60 percent by weight of triethylene glycol, 20 - ethyl diglycol, 10 - ethyl alcohol,

2 - Wasser,2 - water,

8 -■ Borsäure-i, 3-Butylen-8 - ■ boric acid-i, 3-butylene-

glykol-Triäthanolamin-glycol triethanolamine

ester.ester.

-5. 50 Gewichtsprozent Triäthylenglykol, 30 - Äthylglykol,-5. 50 percent by weight triethylene glycol, 30 - ethyl glycol,

10 - Butylpolyglykol,10 - butyl polyglycol,

10 - Borsäure-Thiodiglykol-10 - boric acid thiodiglycol

ester.ester.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Verwendung von einfachen oder gemischten Estern der Borsäure mit ein- oder mehrwertigen aliphatischen Alkoholen, Alkanolaminen oder Thiopolyglykplen in Mengen von 5 bis 15 Gewichtsprozent als Zusatz zu hydraulischen Flüssigkeiten auf Glykolbasis.Use of simple or mixed esters of boric acid with mono- or polyvalent ones aliphatic alcohols, alkanolamines or thiopolyglycols in amounts of 5 to 15 percent by weight as an additive to hydraulic fluids on a glycol basis. Angezogene Druckschriften: Schweizerische Patentschriften Nr. 265 847,271 655; USA.-Patentschriften Nr. 2497521, 2462616; »Mitteilungen über Kühl- und Frostschutz für den Motorfahrzeugbetrieb« (1949), Bericht Nr. 15, S. 87.Cited publications: Swiss patent specifications No. 265 847,271 655; U.S. Patent Nos. 2497521, 2462616; "Communications on cooling and frost protection for motor vehicle operation" (1949), report no. 15, p. 87. © 509 647 2.56© 509 647 2.56
DEA15191A 1952-02-19 1952-02-20 Hydraulic fluids Expired DE939045C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA15191A DE939045C (en) 1952-02-19 1952-02-20 Hydraulic fluids

Applications Claiming Priority (2)

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DE316412X 1952-02-19
DEA15191A DE939045C (en) 1952-02-19 1952-02-20 Hydraulic fluids

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218645B (en) * 1960-07-07 1966-06-08 Bayer Ag Hydraulic fluids
JPS52145675A (en) * 1976-05-28 1977-12-03 Sanyo Chemical Ind Ltd Brake liquid having high boiling point
EP0129240A1 (en) * 1983-06-21 1984-12-27 Montedison S.p.A. Hydraulic fluids

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462616A (en) * 1944-12-05 1949-02-22 Standard Oil Dev Co Lubricating oil containing an antioxidant
CH265847A (en) * 1947-03-29 1949-12-31 Aluminum Co Of America Lubricant.
US2497521A (en) * 1947-12-03 1950-02-14 Gulf Research Development Co Oil compositions containing amine salts of boro-diol complexes
CH271655A (en) * 1946-12-07 1950-11-15 Aluminum Co Of America Lubricant.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462616A (en) * 1944-12-05 1949-02-22 Standard Oil Dev Co Lubricating oil containing an antioxidant
CH271655A (en) * 1946-12-07 1950-11-15 Aluminum Co Of America Lubricant.
CH265847A (en) * 1947-03-29 1949-12-31 Aluminum Co Of America Lubricant.
US2497521A (en) * 1947-12-03 1950-02-14 Gulf Research Development Co Oil compositions containing amine salts of boro-diol complexes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218645B (en) * 1960-07-07 1966-06-08 Bayer Ag Hydraulic fluids
JPS52145675A (en) * 1976-05-28 1977-12-03 Sanyo Chemical Ind Ltd Brake liquid having high boiling point
DE2724193A1 (en) * 1976-05-28 1977-12-15 Sanyo Chemical Ind Ltd HYDRAULIC LIQUID
JPS5515519B2 (en) * 1976-05-28 1980-04-24
EP0129240A1 (en) * 1983-06-21 1984-12-27 Montedison S.p.A. Hydraulic fluids

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