US3050465A - Water-in-oil emulsion hydraulic fluids - Google Patents

Water-in-oil emulsion hydraulic fluids Download PDF

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Publication number
US3050465A
US3050465A US810563A US81056359A US3050465A US 3050465 A US3050465 A US 3050465A US 810563 A US810563 A US 810563A US 81056359 A US81056359 A US 81056359A US 3050465 A US3050465 A US 3050465A
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United States
Prior art keywords
oil
water
emulsion
composition
mineral oil
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 - Lifetime
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US810563A
Inventor
Charles E Francis
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Shell USA Inc
Original Assignee
Shell Oil Co
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Filing date
Publication date
Priority to NL287079D priority Critical patent/NL287079A/xx
Priority to BE623612D priority patent/BE623612A/xx
Priority to NL251182D priority patent/NL251182A/xx
Priority to NL284362D priority patent/NL284362A/xx
Priority to BE590388D priority patent/BE590388A/xx
Priority to BE626342D priority patent/BE626342A/xx
Priority to US810563A priority patent/US3050465A/en
Application filed by Shell Oil Co filed Critical Shell Oil Co
Priority to FR825981A priority patent/FR1269611A/en
Priority to CH498760A priority patent/CH395409A/en
Priority to DES68328A priority patent/DE1122656B/en
Priority to GB15336/60D priority patent/GB882763A/en
Application granted granted Critical
Publication of US3050465A publication Critical patent/US3050465A/en
Priority to GB38993/72A priority patent/GB960137A/en
Priority to CH1209162A priority patent/CH431778A/en
Priority to DE19621444898 priority patent/DE1444898A1/en
Priority to GB48199/62A priority patent/GB970680A/en
Priority to FR919306A priority patent/FR83113E/en
Priority to DE19621444899 priority patent/DE1444899C/en
Priority to CH1499362A priority patent/CH434534A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Definitions

  • This invention relates to improved fire-resistant hydraulic fluids. More particularly, it pertains to water-in-oil colliery hydraulic fluids and lubricants which are fire and Wear-resistant, stable and non-corrosive and to oil concen trates which are readily emulsifiable with large amounts of water.
  • fire-resistant fluids are commercially available such as phosphate ester base fluids, but these have been found to possess poor low temperature viscosity-temperature properties, and they are toxic.
  • Water-glycol solution or various Water-oil emulsions have been found to have a tendency to form deposits under high pressures and are costly.
  • the mineral oil base should be one having a viscosity index (Dean-Davis) of at least 80, preferably between 90 and 100.
  • Mineral oil fractions of this type are derived from paraifinic, naphthenic or mixed base crudes. They should also be in the lubricating oil range and have a viscosity, as deter-mined at 100 F., of from 75 to 250 SUS, preferably between 100 and 150.
  • a typical mineral oil base of this kind is a high viscosiy index refined mineral lubricating oil having the following properties:
  • the two non-ionic surface agents which are added to include phenolic and aromatic amine comuounds.
  • the mineral oil are (l) a monoester of a long chain fatty acid having at least 8 carbon atoms and an alkitan and (2) a polyalkylenoxy phenoxy alkanol.
  • Each of these additives must be present in critical amounts of which the monoester (l) is used in amounts ranging from 1% to 4%, preferably from 1.5% to 3% and the polyalkylenoxy phenoxy alkanol (2) is used in amounts ranging from 0.5% to 3%, preferably from 1% to 2%.
  • alkitans In the monoester non-ionic surface agent by alkitans is meant partially dehydrated polyhydric alcohols which results in the conversion of the polyhydric alcohol to inner ether polyhydric compounds having 1 or 2 ethers and 4 to 6 hydroxyl groups in the molecule.
  • Compounds of this type are exemplified by sorbitan, mannitan, xylitan, dulcitan, etc.
  • Fatty acids which are used to form the monoesters of alkitans are saturated and unsaturated fatty acids having at least 8 carbon atoms, preferably from 12 to 18 carbon atoms, such as lauric, stearic, oleic, linoleic, riconoleic'acids and the like; Monoesters of this type include sorbitan monolaurate, sorbitan monostearate, sorbitan "monooleate, sorbitan monoricinoleate, mannitan monolaurate, mannitan monooleate, and mixtures thereof.
  • the second essential additive is an oil-soluble alkyl phenoxy polyalkylene glycol having the formula R-phenyl -OR9- OR"OH, where n is an integer of from 2 to 6, preferably 3 to 4, R is an alkyl radical of 4 to 20 carbon atoms, preferably 4 to 12, and R and R" are the same or difierent alkylene groups such as ethylene or propylene groups, they are preferably the same, and preferably ethylene.
  • Compounds of this type are C alkyl phenoxy- (alkoxy)., alkanols exemplified by isobutylphenoxy tetraethyleneoxy ethanol, diisobutylphenoxy tetraethyleneoxy ethanol, nonylphenoxy tetraethyleneoxy ethanol, oc tylphenoxy hexaethyleneoxy ethanol, diisobutylphenoxy tripropyleneoxy propanol, and mixtures thereof.
  • antioxidants The phenolic compounds are illustrated by the alkyl phenols, e.g., diand trialkyl phenols, for instance 2,4-, 2,3- 3,4-, 2,6- and 3,5-diamyl phenol, 2,4-dimethyl-6-tert. butylphenol, 2,6-ditert. butyl-4-methylphenol, as well as bisphenols such as 4,4'-methylene-bis(2,6-dietert.-butylphenol).
  • the amines are illustrated by arylamines such as phenyl-alphanaphthylamine or phenyl-beta-naphthylamine.
  • mineral oil bases of this invention which are emulsified with from about 20% to about 45%, preferably from about 30% to about 40% of water to form a stable fire-resistant hydraulic fluid are presented below.
  • Composition A A:
  • Composition C is a composition having Composition C:
  • Composition III is a composition III:
  • compositions of this invention are shown in Table I.
  • the stability of the test compositions were determined by measuring separation of water and oil from 100 C. sample of the final water-in-oil emulsion composition at 140 F.
  • the wear-resistant properties were determined by the Vickers hydraulic pump test as described in Lubrication Engineering, February 1949, pages 16 and 17.
  • the fire resistance was determined by the pipe cleaner test described in Lubrication Engineere
  • the finished emulsion fluid is prepared by slowly adde mg, March-April 1955, pages 8687.
  • Composition X water-in-oil emulsion
  • 60% mineral oil containing 0.75% sorbitan monooleate and 2.25% polyethylene substituted sorbitan monooleate (Tween 81) having the following properties: Av. M.
  • composition Y Water-in-oil emulsion
  • sorbitan monooleate Teween 81
  • Composition Z oil-in-water emulsion comprising 20% Na petroleum sulionate, 1% ricinoleic acid, 1% hexylene glycol, 1%
  • an aqueous base such as water which may or may not contain 0.1% to 1% of a corrosion or wear inhibitor such as water-soluble inorganic nitrites, nitrates, chromates, phosphates or water-soluble low molecular weight salts such as alkali metal or alkaline earth metal (Na, K, Ca, Ba) acetate or propionate.
  • a corrosion or wear inhibitor such as water-soluble inorganic nitrites, nitrates, chromates, phosphates or water-soluble low molecular weight salts such as alkali metal or alkaline earth metal (Na, K, Ca, Ba) acetate or propionate.
  • the Water-in-oil emulsion can be mixed by any suitable means such as by air agitation, propeller agitation or by passing through a colloid mill until a homogeneous stable water-in-oil emulsion is formed.
  • any suitable means such as by air agitation, propeller agitation or by passing through a colloid mill until a homogeneous stable water-in-oil emulsion is formed.
  • the water is added to the oil in desired amounts at the time the emulsion is to be used, although a stable water-in-oil emulsion can be prepared and stored for a moderate period.
  • a finished water-in-oil emulsion (Composition I) was prepared by admixing 60% of Composition B with 40% water and the mixture was passed through a colloid mill until a stable homogeneous water-in-oil emulsion was formed.
  • composition I The properties of Composition I were as follows:
  • Composition II Percent Water 30 Composition A 70 R, 550; fire point, F., 600. 40% water 60% mineral oil 5% polyethylene substituted glycerol monooleate 0.12% suliurized oleic acid.
  • compositions I and II of the present invention are superior to Compositions X, Y and Z with respect to stability and wear, although these compositions are also water-in-oil emulsions, but which contain different nonionic surface active agents from those used in compositions of the present invention.
  • a hydraulic fluid for colliery equipment consisting essentially of a water-in-oil emulsion in which the water phase is from about 20% to about 45% of the emulsion and the oil phase is from about 55 to about 80% of the emulsion, the oil phase being essentially a 80100 V.I. mineral oil having a viscosity in the range of from 75 to 250 SUS at 100 F. containing from about 1.5% to about 3% of a monoester of a fatty acid having from 12 to 18 carbon atoms and an alkitan selected from the group consisting of sorbitan and mannitan, and from about 1% to about 2% of an oil-soluble C alkyl phenoxy(ethoxy) ethanol based on the oil.
  • a hydraulic iluid for colliery equipment consisting essentially of a water-in-oil emulsion in which the water phase is from about 20% to about 45% of the emulsion and the oil phase is from about 55% to about 80% of the emulsion, the oil phase being essentially a 80-100 V.I. mineral lubricating oil having a visosity in the range of from 100 to 150 SUS at 100 F. containing from about 1.5% to about 3% of sorbitan monooleate and from about 1% to about 2% of a C .alkyl phenoxy (ethoxy) ethanol based on the oil.
  • a hydraulic fluid for colliery equipment consisting essentially of a Water-in-oil emulsion in which the water phase is from about 30% to about 40% of the emulsion and the oil phase is from about 70% to about 60% of the emulsion, the oil phase being essentially a 80100 V.I. mineral lubricating oil having a viscosity in the range of from 100 to 150 SUS at 100 F. containing from about 1.5% to about 3% of sorbitan monooleate, and from about 1% to about 2% of an oil-soluble diisobutyl phenoxy(ethxy) ethanol based on the oil.
  • the hydraulic fluid composition of claim 4 containing in the emulsion from about 0.01% to about 1% each of 2,6-ditert.butyl-4-methylphenol and phenyl-alpha-naphthylamine.
  • a water-in-oil emulsifiable mineral oil composition for use as a lubricant and hydraulic fluid said mneral oil base composition comprising major amount of an 80 100 V.I. mineral oil having a viscosity in the range of from 75 to 250 SUS at 100 F. containing from about 1% to about 4% of a monoester of a long chain fatty acid having from 8 to 18 carbon atoms and an alkitan 6 selected from the group consisting of sorbitan and mannitan and from about 0.5% to about 3% of an oil-soluble C alkyl phenoxy(ethoxy) ethanol.
  • a water-in-oil emulsifiable mineral oil composition for use as a lubricant and hydraulic fluid, said mineral oil base composition comprising a major amount of an 80- 100 V1.
  • mineral oil having a viscosity in the range of from to 250 SUS at 100 F. containing from about 1.5% to about 3% of a monoester of a fatty acid having from 12 to 18 carbon atoms and an alidtan selected from the group consisting of sorbitan and mannitan and from about 1% to about 2% based on the oil of an oil-soluble C alkyl phenoxy (ethoxy) ethanol.
  • a Water-in-oil emulsifiable mineral oil composition for use as a lubricant and hydraulic fluid said mineral oil base composition comprising a major amount of an -100 V1.
  • mineral lubricating oil having a viscosity in the range of from to SUS at 100 F. containing 2% sorbitan monooleate and 1% diisobutyl phenoxy (ethoxy) ethanol.
  • composition of claim 8 containing from about 0.01% to about 1% each of 2,6-ditert.butyl-4-methylphenol and phenyl aI ha-naphthylamne.

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  • Chemical & Material Sciences (AREA)
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Description

United States Patent 3,050,465 WATER-IN-DIL EMULSiON HYDRAULIC FLUIDS Charles E. Francis, Martinez, Calif., assignor to Shell Oil Company, a corporation of Delaware No Drawing. Filled May 4, 1959, Ser. No. 810,563 9 Claims. (Cl. 25249.5)
This invention relates to improved fire-resistant hydraulic fluids. More particularly, it pertains to water-in-oil colliery hydraulic fluids and lubricants which are fire and Wear-resistant, stable and non-corrosive and to oil concen trates which are readily emulsifiable with large amounts of water.
Although it is known in the art that certain emulsions are useful as coolants and lubricants in metal Working operations, the use of emulsions in hydraulic systems has been limited because of their inability to resist wear, their poor stability and their inability to pass fire-resistant requirements for which such fluids are primarily used.
In colliery equipment such as various hydraulic machinery, e.g., winder brake mechanism and wagon tipper to hydraulic jacks, pit props and roof bar straighteners, mechanical loaders and various other fluid drive mechanisms which are subjected to load, shock and vibration, it is essential that the hydraulic fluid employed therein func- .tion properly and efficiently without the danger of being flammable or toxic.
A variety of so-called fire-resistant fluids are commercially available such as phosphate ester base fluids, but these have been found to possess poor low temperature viscosity-temperature properties, and they are toxic. Water-glycol solution or various Water-oil emulsions have been found to have a tendency to form deposits under high pressures and are costly.
It is an object of this invention to provide a composition which can be emulsified readily on the job to yield a fire resistant hydraulic fluid having good lubricating properties. Another object is to provide a fluid which after emulsification is a satisfactory lubricant for colliery hydraulic equipment, which is stable, non-toxic, fire-resistant, resistant to deterioration, inhibits corrosion and not cause wear. Still another object of this invention is to provide a water-mineral oil emulsion usable as lubricants and fire-resistant hydraulic fluids for various equipment used in colliery hydraulic equipment.
These and other objects are accomplished in accordance with this invention by providing a particular mineral oil base containing two particular types of dissimilar nonionic surface active agents in critical amounts so that the oil compensation is readily emulsified with large amounts of Water to form a stable, fire-resistant water-in-oil emulsion, particularly useful in colliery hydraulic equipment. The mineral oil base should be one having a viscosity index (Dean-Davis) of at least 80, preferably between 90 and 100. Mineral oil fractions of this type are derived from paraifinic, naphthenic or mixed base crudes. They should also be in the lubricating oil range and have a viscosity, as deter-mined at 100 F., of from 75 to 250 SUS, preferably between 100 and 150. A typical mineral oil base of this kind is a high viscosiy index refined mineral lubricating oil having the following properties:
The two non-ionic surface agents which are added to include phenolic and aromatic amine comuounds.
3,050,465 Patented Aug. 21, 1962 the mineral oil are (l) a monoester of a long chain fatty acid having at least 8 carbon atoms and an alkitan and (2) a polyalkylenoxy phenoxy alkanol. Each of these additives must be present in critical amounts of which the monoester (l) is used in amounts ranging from 1% to 4%, preferably from 1.5% to 3% and the polyalkylenoxy phenoxy alkanol (2) is used in amounts ranging from 0.5% to 3%, preferably from 1% to 2%.
In the monoester non-ionic surface agent by alkitans is meant partially dehydrated polyhydric alcohols which results in the conversion of the polyhydric alcohol to inner ether polyhydric compounds having 1 or 2 ethers and 4 to 6 hydroxyl groups in the molecule. Compounds of this type are exemplified by sorbitan, mannitan, xylitan, dulcitan, etc. Fatty acids which are used to form the monoesters of alkitans are saturated and unsaturated fatty acids having at least 8 carbon atoms, preferably from 12 to 18 carbon atoms, such as lauric, stearic, oleic, linoleic, riconoleic'acids and the like; Monoesters of this type include sorbitan monolaurate, sorbitan monostearate, sorbitan "monooleate, sorbitan monoricinoleate, mannitan monolaurate, mannitan monooleate, and mixtures thereof.
The second essential additive is an oil-soluble alkyl phenoxy polyalkylene glycol having the formula R-phenyl -OR9- OR"OH, where n is an integer of from 2 to 6, preferably 3 to 4, R is an alkyl radical of 4 to 20 carbon atoms, preferably 4 to 12, and R and R" are the same or difierent alkylene groups such as ethylene or propylene groups, they are preferably the same, and preferably ethylene. Compounds of this type are C alkyl phenoxy- (alkoxy)., alkanols exemplified by isobutylphenoxy tetraethyleneoxy ethanol, diisobutylphenoxy tetraethyleneoxy ethanol, nonylphenoxy tetraethyleneoxy ethanol, oc tylphenoxy hexaethyleneoxy ethanol, diisobutylphenoxy tripropyleneoxy propanol, and mixtures thereof.
In addition to the above two essential additives it is preferred to use in such compositions small amounts of from about 0.01% to about 2%, preferably from about 0.2% to about 1% of oil-soluble antioxidants. The antioxidants The phenolic compounds are illustrated by the alkyl phenols, e.g., diand trialkyl phenols, for instance 2,4-, 2,3- 3,4-, 2,6- and 3,5-diamyl phenol, 2,4-dimethyl-6-tert. butylphenol, 2,6-ditert. butyl-4-methylphenol, as well as bisphenols such as 4,4'-methylene-bis(2,6-dietert.-butylphenol). The amines are illustrated by arylamines such as phenyl-alphanaphthylamine or phenyl-beta-naphthylamine.
Illustrative examples of mineral oil bases of this invention which are emulsified with from about 20% to about 45%, preferably from about 30% to about 40% of water to form a stable fire-resistant hydraulic fluid are presented below.
Composition A:
Composition C:
Composition III:
Water containing 0.1% Ca acetate 40 Composition B 60 Composition IV:
Water containing 0.1% NaNO 35 Composition C 65 Composition V:
Water 40 Composition D 60 The outstanding properties of compositions of this invention as compared to other emulsions are shown in Table I. The stability of the test compositions were determined by measuring separation of water and oil from 100 C. sample of the final water-in-oil emulsion composition at 140 F. The wear-resistant properties were determined by the Vickers hydraulic pump test as described in Lubrication Engineering, February 1949, pages 16 and 17. The fire resistance Was determined by the pipe cleaner test described in Lubrication Engineere The finished emulsion fluid is prepared by slowly adde mg, March-April 1955, pages 8687.
Table I I II X B Y b Z Composition Stability Test Free Free Free Free Free Free Free Free Water, Oil, Water, Water, Water, Percent Percent Percent Percent Percent Percent Percent Percent v. v. v. v. v. v. v. v.
1 day 1 slight 1 slight unstable slight 6 days- 6 10 days 9 slight 9 slight unstable 50 17 days. 21 slight slight unstable 27 days 42 slight 4O slight unstable Vickers' Hydraulic Pump 0.32 1. 44 6.0
Test d (1000 hrs.) (200 hrs.) (120 hrs).
I Composition X (water-in-oil emulsion) water 60% mineral oil containing 0.75% sorbitan monooleate and 2.25% polyethylene substituted sorbitan monooleate (Tween 81) having the following properties: Av. M.
W., 471; vise. (cp. at 25 0.), 350-550; sp. gr., 11.05; flash point,
b Composition Y (Water-in-oil emulsion) sorbitan monooleate (Tween 81) 0.51%
6 Composition Z oil-in-water emulsion comprising 20% Na petroleum sulionate, 1% ricinoleic acid, 1% hexylene glycol, 1%
0.1% sodium hydroxide and the balance mineral oil.
F. and 1000-1500 p.s.i., and combined wear (wt. loss gm.) of cam rings and vanes d Fluid circulated at 150 aiter 1000 hours determined. ing to the oil base composition such as A, B, C, D or E, from 20% to 45% based on the total composition, an aqueous base, such as water which may or may not contain 0.1% to 1% of a corrosion or wear inhibitor such as water-soluble inorganic nitrites, nitrates, chromates, phosphates or water-soluble low molecular weight salts such as alkali metal or alkaline earth metal (Na, K, Ca, Ba) acetate or propionate. The Water-in-oil emulsion can be mixed by any suitable means such as by air agitation, propeller agitation or by passing through a colloid mill until a homogeneous stable water-in-oil emulsion is formed. For economical reasons, the water is added to the oil in desired amounts at the time the emulsion is to be used, although a stable water-in-oil emulsion can be prepared and stored for a moderate period.
A finished water-in-oil emulsion (Composition I) was prepared by admixing 60% of Composition B with 40% water and the mixture was passed through a colloid mill until a stable homogeneous water-in-oil emulsion was formed.
The properties of Composition I were as follows:
Sp. gr 0.9165 Color White Neut. No 0.12 Visc. at 100 F., SUS 367 Visc. index 144 Other finished compositions include:
Composition II: Percent Water 30 Composition A 70 R, 550; fire point, F., 600. 40% water 60% mineral oil 5% polyethylene substituted glycerol monooleate 0.12% suliurized oleic acid.
water 50% mineral oil composition containing lard oil, 2% water, 0.3% Dowlcide-O,
In the pipe cleaner test, Compositions I through V 0 passed over 50 cycles While mineral oil or mineral oil containing 4% of Ca petroleum sulfonates and/or CaC alkyl salicylate ignited after about 5 cycles.
From the results presented in Table I, it can be seen that Compositions I and II of the present invention are superior to Compositions X, Y and Z with respect to stability and wear, although these compositions are also water-in-oil emulsions, but which contain different nonionic surface active agents from those used in compositions of the present invention.
I claim as my invention:
1. A hydraulic fluid for colliery equipment consisting essentially of a water-in-oil emulsion in which the water phase is from about 20% to about 45% of the emulsion and the oil phase is from about 55% to about of the emulsion, the oil phase being essentially an 80100 V.I. mineral oil having a viscosity in the range of from 75 to 250 SUS at F. containing from about 1% to about 4% of a monoester of a long chain fatty acid having from 8 to 18 carbon atoms and an alkitan selected from the group consisting of sorbitan and mannitan and from about 0.5% to about 3% of an oil-soluble C alkyl phenoxy(ethoxy) ethanol based on the oil.
2. A hydraulic fluid for colliery equipment consisting essentially of a water-in-oil emulsion in which the water phase is from about 20% to about 45% of the emulsion and the oil phase is from about 55 to about 80% of the emulsion, the oil phase being essentially a 80100 V.I. mineral oil having a viscosity in the range of from 75 to 250 SUS at 100 F. containing from about 1.5% to about 3% of a monoester of a fatty acid having from 12 to 18 carbon atoms and an alkitan selected from the group consisting of sorbitan and mannitan, and from about 1% to about 2% of an oil-soluble C alkyl phenoxy(ethoxy) ethanol based on the oil.
3. A hydraulic iluid for colliery equipment consisting essentially of a water-in-oil emulsion in which the water phase is from about 20% to about 45% of the emulsion and the oil phase is from about 55% to about 80% of the emulsion, the oil phase being essentially a 80-100 V.I. mineral lubricating oil having a visosity in the range of from 100 to 150 SUS at 100 F. containing from about 1.5% to about 3% of sorbitan monooleate and from about 1% to about 2% of a C .alkyl phenoxy (ethoxy) ethanol based on the oil.
4. A hydraulic fluid for colliery equipment consisting essentially of a Water-in-oil emulsion in which the water phase is from about 30% to about 40% of the emulsion and the oil phase is from about 70% to about 60% of the emulsion, the oil phase being essentially a 80100 V.I. mineral lubricating oil having a viscosity in the range of from 100 to 150 SUS at 100 F. containing from about 1.5% to about 3% of sorbitan monooleate, and from about 1% to about 2% of an oil-soluble diisobutyl phenoxy(ethxy) ethanol based on the oil.
5. The hydraulic fluid composition of claim 4 containing in the emulsion from about 0.01% to about 1% each of 2,6-ditert.butyl-4-methylphenol and phenyl-alpha-naphthylamine.
6. A water-in-oil emulsifiable mineral oil composition for use as a lubricant and hydraulic fluid, said mneral oil base composition comprising major amount of an 80 100 V.I. mineral oil having a viscosity in the range of from 75 to 250 SUS at 100 F. containing from about 1% to about 4% of a monoester of a long chain fatty acid having from 8 to 18 carbon atoms and an alkitan 6 selected from the group consisting of sorbitan and mannitan and from about 0.5% to about 3% of an oil-soluble C alkyl phenoxy(ethoxy) ethanol.
7. A water-in-oil emulsifiable mineral oil composition for use as a lubricant and hydraulic fluid, said mineral oil base composition comprising a major amount of an 80- 100 V1. mineral oil having a viscosity in the range of from to 250 SUS at 100 F. containing from about 1.5% to about 3% of a monoester of a fatty acid having from 12 to 18 carbon atoms and an alidtan selected from the group consisting of sorbitan and mannitan and from about 1% to about 2% based on the oil of an oil-soluble C alkyl phenoxy (ethoxy) ethanol.
8. A Water-in-oil emulsifiable mineral oil composition for use as a lubricant and hydraulic fluid said mineral oil base composition comprising a major amount of an -100 V1. mineral lubricating oil having a viscosity in the range of from to SUS at 100 F. containing 2% sorbitan monooleate and 1% diisobutyl phenoxy (ethoxy) ethanol.
9. The composition of claim 8 containing from about 0.01% to about 1% each of 2,6-ditert.butyl-4-methylphenol and phenyl aI ha-naphthylamne.
References Cited in the file of this patent UNITED STATES PATENTS 2,102,825 Woodhouse et a1. Dec. 21, 1937 2,434,978 Zisman et -al. Jan. 27, 1948 2,466,647 Stern Apr. 5, 1949 2,744,870 Stillebroer et al. May 8, 1956 2,834,731 Carpenter May 13, 1958 2,894,910 Francis et a1. July 14, 1959 2,965,574 Tierney et al Dec. 20, 1960 2,968,621 Teeter et a1. Jan. 17, 1961 2,981,128 Flemming Apr. 25, 1961

Claims (1)

1. A HYDRAULIC FLUID FOR COLLIERY EQUIPMENT CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION IN WHICH THE WATER PHASE IS FROM ABOUT 20% TO ABOUT 45% OF THE EMULSION AND THE OIL PHASE IS FROM ABOUT 55% TO ABOUT 80% OF THE EMULSION, THE OIL PHASE BEING ESSENTIAL AN 80-100 V.I. MINERAL OIL HAVING A VISCOSITY IN THE RANGE OF FROM 75 TO 250 SUS AT 100* F, CONTAINING FROM ABOUT 1% TO ABOUT 4% OF A MONOESTER OF A LONG CHAIN FATTY ACID HAVING FROM 8 TO 18 CARBON ATOMS AND AN ALKITAN SELECTED FROM THE GROUP CONSISTING OF SORBITAN AND MANNITAN AND FROM ABOUT 0.5% TO ABOUT 3% OF AN OIL-SOLUBLE C4-20 ALKYL PHENOXY(ETHOXY)4-6 ETHANOL BASED ON THE OIL
US810563A 1959-05-04 1959-05-04 Water-in-oil emulsion hydraulic fluids Expired - Lifetime US3050465A (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
NL287079D NL287079A (en) 1959-05-04
BE623612D BE623612A (en) 1959-05-04
NL251182D NL251182A (en) 1959-05-04
NL284362D NL284362A (en) 1959-05-04
BE590388D BE590388A (en) 1959-05-04
BE626342D BE626342A (en) 1959-05-04
US810563A US3050465A (en) 1959-05-04 1959-05-04 Water-in-oil emulsion hydraulic fluids
CH498760A CH395409A (en) 1959-05-04 1960-05-02 Emulsifiable mineral oil preparation
FR825981A FR1269611A (en) 1959-05-04 1960-05-02 Emulsifiable mineral oil compositions
DES68328A DE1122656B (en) 1959-05-04 1960-05-02 Hydraulic fluid and lubricant based on a water-in-oil emulsion
GB15336/60D GB882763A (en) 1959-05-04 1960-05-02 Emulsifiable mineral oil composition
DE19621444898 DE1444898A1 (en) 1959-05-04 1962-10-15 Hydraulic fluid and lubricant based on a water-in-oil emulsion
CH1209162A CH431778A (en) 1959-05-04 1962-10-15 Emulsifiable mineral oil preparation
GB38993/72A GB960137A (en) 1959-05-04 1962-10-15 Emulsifiable mineral oil compositions
GB48199/62A GB970680A (en) 1959-05-04 1962-12-20 Emulsifiable mineral oil composition
FR919306A FR83113E (en) 1959-05-04 1962-12-20 Emulsifiable mineral oil compositions
DE19621444899 DE1444899C (en) 1961-12-22 1962-12-20 Hydraulic fluid and lubricant based on a water in oil emulsion
CH1499362A CH434534A (en) 1959-05-04 1962-12-20 Emulsifiable mineral oil preparation, suitable for the production of hydraulic fluids or lubricants

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Cited By (11)

* Cited by examiner, † Cited by third party
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US3177146A (en) * 1961-10-17 1965-04-06 Shell Oil Co Fire-resistant hydraulic fluids
US3192159A (en) * 1961-10-17 1965-06-29 Shell Oil Co Water-in-oil emulsion lubricant and hydraulic fluid
US3236778A (en) * 1962-05-29 1966-02-22 Texaco Inc Fire resistant hydraulic fluid
US3272747A (en) * 1963-06-12 1966-09-13 Texaco Inc Fire resistant hydraulic fluid
US3275559A (en) * 1963-01-14 1966-09-27 Texaco Inc Hydraulic fluid
US3278442A (en) * 1963-07-25 1966-10-11 Exxon Research Engineering Co Fire-resistant hydraulic fluid
US3305487A (en) * 1962-09-04 1967-02-21 Castrol Ltd Hydraulic fluids
US3872048A (en) * 1970-09-28 1975-03-18 Us Navy Hydraulic and lubricating oil composition
US20030157521A1 (en) * 1999-04-12 2003-08-21 Afar Daniel E. Novel 13-transmembrane protein expressed in prostate cancer
US20040007687A1 (en) * 2002-07-11 2004-01-15 Hubert Dobbelstein Formulation of a highly viscous mineral oil for the production of filters for tobacco products
US11505499B2 (en) 2017-12-19 2022-11-22 Corning Incorporated Green ceramic mixtures comprising a stabilized emulsion and methods for forming a ceramic body

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US2102825A (en) * 1935-03-06 1937-12-21 Du Pont Hydraulic fluids
US2434978A (en) * 1944-04-15 1948-01-27 William A Zisman Anticorrosion additives for synthetic lubricants
US2466647A (en) * 1945-11-05 1949-04-05 Shell Dev Lubricating oil composition
US2744870A (en) * 1953-11-24 1956-05-08 Shell Dev Lubricating compositions
US2834731A (en) * 1956-01-11 1958-05-13 Exxon Research Engineering Co Hydrocarbon oil meulsifier
US2894910A (en) * 1956-07-23 1959-07-14 Shell Dev Water-in-oil emulsion lubricants
US2965574A (en) * 1956-07-12 1960-12-20 Texaco Inc Fire resistant hydraulic fluid
US2968621A (en) * 1955-06-28 1961-01-17 Sinclair Refining Co Acid-tolerating soluble oil composition
US2981128A (en) * 1956-04-17 1961-04-25 Socony Mobil Oil Co Inc Process and lubricant composition for rolling aluminum

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US2102825A (en) * 1935-03-06 1937-12-21 Du Pont Hydraulic fluids
US2434978A (en) * 1944-04-15 1948-01-27 William A Zisman Anticorrosion additives for synthetic lubricants
US2466647A (en) * 1945-11-05 1949-04-05 Shell Dev Lubricating oil composition
US2744870A (en) * 1953-11-24 1956-05-08 Shell Dev Lubricating compositions
US2968621A (en) * 1955-06-28 1961-01-17 Sinclair Refining Co Acid-tolerating soluble oil composition
US2834731A (en) * 1956-01-11 1958-05-13 Exxon Research Engineering Co Hydrocarbon oil meulsifier
US2981128A (en) * 1956-04-17 1961-04-25 Socony Mobil Oil Co Inc Process and lubricant composition for rolling aluminum
US2965574A (en) * 1956-07-12 1960-12-20 Texaco Inc Fire resistant hydraulic fluid
US2894910A (en) * 1956-07-23 1959-07-14 Shell Dev Water-in-oil emulsion lubricants

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177146A (en) * 1961-10-17 1965-04-06 Shell Oil Co Fire-resistant hydraulic fluids
US3192159A (en) * 1961-10-17 1965-06-29 Shell Oil Co Water-in-oil emulsion lubricant and hydraulic fluid
US3236778A (en) * 1962-05-29 1966-02-22 Texaco Inc Fire resistant hydraulic fluid
US3305487A (en) * 1962-09-04 1967-02-21 Castrol Ltd Hydraulic fluids
US3275559A (en) * 1963-01-14 1966-09-27 Texaco Inc Hydraulic fluid
US3272747A (en) * 1963-06-12 1966-09-13 Texaco Inc Fire resistant hydraulic fluid
US3278442A (en) * 1963-07-25 1966-10-11 Exxon Research Engineering Co Fire-resistant hydraulic fluid
US3872048A (en) * 1970-09-28 1975-03-18 Us Navy Hydraulic and lubricating oil composition
US20030157521A1 (en) * 1999-04-12 2003-08-21 Afar Daniel E. Novel 13-transmembrane protein expressed in prostate cancer
US20040007687A1 (en) * 2002-07-11 2004-01-15 Hubert Dobbelstein Formulation of a highly viscous mineral oil for the production of filters for tobacco products
US7153447B2 (en) * 2002-07-11 2006-12-26 Emini Shefqet Formulation of a highly viscous mineral oil for the production of filters for tobacco products
US11505499B2 (en) 2017-12-19 2022-11-22 Corning Incorporated Green ceramic mixtures comprising a stabilized emulsion and methods for forming a ceramic body

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