US2104641A - Lubricating preparation - Google Patents
Lubricating preparation Download PDFInfo
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- US2104641A US2104641A US34842A US3484235A US2104641A US 2104641 A US2104641 A US 2104641A US 34842 A US34842 A US 34842A US 3484235 A US3484235 A US 3484235A US 2104641 A US2104641 A US 2104641A
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- Prior art keywords
- lubricating
- oil
- lubricating oil
- preparation
- glyco
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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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/06—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic nitrogen-containing compound
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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
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/02—Carbon; Graphite
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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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
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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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives thereof
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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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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- 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
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
- C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
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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
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/124—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof
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- 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
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- 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
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- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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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
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- 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
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- 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
- C10M2207/286—Esters of polymerised unsaturated acids
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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
- C10M2207/287—Partial esters
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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
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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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- 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
- C10M2215/08—Amides
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/08—Amides
- C10M2215/082—Amides containing hydroxyl groups; Alkoxylated derivatives
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/12—Partial amides of polycarboxylic acids
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/12—Partial amides of polycarboxylic acids
- C10M2215/122—Phtalamic acid
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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
- C10M2215/28—Amides; Imides
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- C—CHEMISTRY; METALLURGY
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- 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
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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
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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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
- C10N2040/32—Wires, ropes or cables lubricants
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- 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
- C10N2040/34—Lubricating-sealants
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- 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
- C10N2040/36—Release agents or mold release agents
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- 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
- C10N2040/38—Conveyors or chain belts
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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
- C10N2040/40—Generators or electric motors in oil or gas winning field
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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
- C10N2040/42—Flashing oils or marking oils
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- 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
- C10N2040/44—Super vacuum or supercritical use
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- 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
- C10N2040/50—Medical uses
Definitions
- This invention relates to improved lubricating preparations containing oils.
- compositions hereinafter to be described will find many other applications and with obvious modifications, such as the selection of different types of lubricating oils, it is believed that the composition according to the invention will be suitable for a variety of purposes.
- the invention may result in a lowering of the temperature at which oil solidifies, hence enabling the oil to be used in climates or for purposes, such as refrigeration, which involve lubrication at low temperatures, and in this latter connection for such purposes as power transmis- 05 sion liquids.
- a lubricating preparation according to the present invention comprises a lubricating oil and a neutralized hydroxy acid.
- the neutralized hydroxy acid may be a salt or 30 an ester or in certain cases, a mixture of a salt and an ester of the same or different hydroxy acids.
- ester of another hydroxy acid may be employed as a solubilizing agent in order to bring about compatibility between the oil and the hydroxy acid salt.
- Esters other than hydroxy acid esters may be employed with a hydroxy acid salt to render the latter compatible with the oil, for example, amyl acetate and the glycerol esters of higher fatty 4i) acids such as palmitic, oleic or stearic acids.
- the neutralized hydroxy acid is an alkali salt of a hydroxy derivative of cholanic acid, Cad-14002.
- examples of such acids are glyco cholic acid C24.Ha9.O4.NH.CHz.CO2H
- bile acids are constituents of the bile fluid and are known as bile acids.
- a pharmaceutical preparation from the bile of oxen which containsboth these acids is known as sodium tauro w glyco cholate.
- a lubricant comprises a lubricating oil and a hydroxy acid ester such as a lactic acid ester.
- a lactic ester is employed, according to a preferred feature of the invention, it serves as a 5 solvent for a hydroxy derivative of cholanic acid such as sodium or potassium tauro glyco cholate.
- the lactic acid ester employed is preferably that of an aliphatic alcohol higher than that of butyl alcohol, 1. e. an aliphatic al- 10' preferably employed in proportions just sufficient to bring about compatibility between the lubricating oil and the bile salts.
- the invention also includes the process for producing the improved lubricant which consists in adding a solution, in a solubilizing'agent, of a bile salt to a lubricating oil, for example, the addition of a solution of sodium tauro glyco cholate in amyl lactate to a mineral lubricating oil.
- the invention includes the incorporation with the composition hereinbefore described of graphite preferably in colloidal condition.
- the hydroxy acid salt or ester, or both may be added to a thick lubricating oil or it may be added as a constituent in a known penerating oil comprising a comparae tively heavy mineral oil to which kerosene and amyl acetate are added.
- a known penerating oil comprising a comparae tively heavy mineral oil to which kerosene and amyl acetate are added.
- the proportions of kerosene and amyl acetate added have been substantial, and it has been necessary to add graphite to the mixture to obtain suificient lubricating properties.
- the penetrating power of a, thick lubricating oil can be so increased by a very small proportion of the hydroxy acid that the amount of kerosene and graphite may be either substantially reduced or dispensed with altogether.
- Example 1 Two drams of the same solution of bile salts as in Example 1 was added to one pint of thick gear oil sold under the name Mobiloil C. This results in a black thick oil which can be used for lubrication of leaf springs by painting it on the sides thereof when it will slowly creep in between the leaves and remain there for a considerable period.
- Example 3 This is an example of the application of the invention to the preparation of a penetrating oil containing kerosene and amyl acetate.
- a lubricating preparation comprising a inbricating oil, a salt of a bile acid and a liquid lactate of an aliphatic alcohol having more than four carbon atoms.
- a lubricating preparation comprising a lubricating oil and sodium tauro glyco cholate and a liquid lactate of an aliphatic alcohol having more than four carbon atoms, in suflicient quantityv to form a compatible solution with the lubricating oil.
- A' lubricating preparation consisting of a lubricating oil and more than 0.1% of sodium tauro glyco cholate dissolved in suflicient amyl lactate to form a compatible solution with the lubricating oil.
- a lubricating preparation comprising a lubricating oil and sodium tauro glyco cholate and suflicient amyl lactate to form a compatible solution with the lubricating oil.
- a lubricating preparation comprising a mineral lubricating oil and sodium tauro glyco cholate and sufilcient amyl lactate to form a compatible solution with the mineral lubricating oil.
- a process for preparing a lubricating preparation which comprises dissolving a salt of a bile acid in amyl lactate and adding the said solution to a lubricating oil.
- a process for preparing a lubricating preparation which comprises dissolving a salt of a bile acid in amyl lactate and adding the said solution to a mineral lubricating oil.
- a process for preparing a lubricating preparation which comprises dissolving sodium tauro glyco cholate in suificient amyl lactate to form a compatible solution with a mineral lubricating oil and adding the said solutionto the lubricating oil.
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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)
- Inorganic Chemistry (AREA)
- Lubricants (AREA)
Description
Patented Jan. 4, i938 LUBRIOATING PREPARATION Hugh Francis Green, York, England No Drawing. Application August 5, 1935, Serial No. 34,842. In Great Britain December 5,
8 Claims.
This invention relates to improved lubricating preparations containing oils.
Y It is one object of the invention to provide an improved penetrating oil for creeping in between the leaves of leaf springs, easing rusted screwthreads and like purposes, and in particular to provide a composition more nearly of the consistency of gear oil than of an ordinary penetrating oil and yet having the property of creeping 10 between the leaves of springs and thereafter remaining between them and performing the functions of an eflicient lubricant.
It is believed however, that the composition hereinafter to be described will find many other applications and with obvious modifications, such as the selection of different types of lubricating oils, it is believed that the composition according to the invention will be suitable for a variety of purposes. Thus the invention may result in a lowering of the temperature at which oil solidifies, hence enabling the oil to be used in climates or for purposes, such as refrigeration, which involve lubrication at low temperatures, and in this latter connection for such purposes as power transmis- 05 sion liquids.
- A lubricating preparation according to the present invention comprises a lubricating oil and a neutralized hydroxy acid.
The neutralized hydroxy acid may be a salt or 30 an ester or in certain cases, a mixture of a salt and an ester of the same or different hydroxy acids. Where a salt is employed the ester of another hydroxy acid may be employed as a solubilizing agent in order to bring about compatibility between the oil and the hydroxy acid salt. Esters other than hydroxy acid esters, however, may be employed with a hydroxy acid salt to render the latter compatible with the oil, for example, amyl acetate and the glycerol esters of higher fatty 4i) acids such as palmitic, oleic or stearic acids.
According to onefeature of the invention, the neutralized hydroxy acid is an alkali salt of a hydroxy derivative of cholanic acid, Cad-14002. Examples of such acids are glyco cholic acid C24.Ha9.O4.NH.CHz.CO2H
and tauro cholic acid C24.H39.O4.NH.CH2.CH2.SOsH.
These two acids are constituents of the bile fluid and are known as bile acids. A pharmaceutical preparation from the bile of oxen which containsboth these acids is known as sodium tauro w glyco cholate.
According to another feature of the invention, a lubricant comprises a lubricating oil and a hydroxy acid ester such as a lactic acid ester. Where a lactic ester is employed, according to a preferred feature of the invention, it serves as a 5 solvent for a hydroxy derivative of cholanic acid such as sodium or potassium tauro glyco cholate. In this case, the lactic acid ester employed is preferably that of an aliphatic alcohol higher than that of butyl alcohol, 1. e. an aliphatic al- 10' preferably employed in proportions just sufficient to bring about compatibility between the lubricating oil and the bile salts.
The invention also includes the process for producing the improved lubricant which consists in adding a solution, in a solubilizing'agent, of a bile salt to a lubricating oil, for example, the addition of a solution of sodium tauro glyco cholate in amyl lactate to a mineral lubricating oil.
The invention .further includes the incorporation with the composition hereinbefore described of graphite preferably in colloidal condition.
In carrying out the invention, the hydroxy acid salt or ester, or both, may be added to a thick lubricating oil or it may be added as a constituent in a known penerating oil comprising a comparae tively heavy mineral oil to which kerosene and amyl acetate are added. In such known penetrating oils as hitherto prepared in order to obtain the desired fluidity and sufiicient penetrating power, the proportions of kerosene and amyl acetate added have been substantial, and it has been necessary to add graphite to the mixture to obtain suificient lubricating properties. In preparing such liquid in accordance with the present invention, the penetrating power of a, thick lubricating oil can be so increased by a very small proportion of the hydroxy acid that the amount of kerosene and graphite may be either substantially reduced or dispensed with altogether.
The following examples illustrate the nature of the invention though it will be appreciated that the proportions given may be varied in each case:-
Example 1 Example 2 Two drams of the same solution of bile salts as in Example 1 was added to one pint of thick gear oil sold under the name Mobiloil C. This results in a black thick oil which can be used for lubrication of leaf springs by painting it on the sides thereof when it will slowly creep in between the leaves and remain there for a considerable period.
Example 3 This is an example of the application of the invention to the preparation of a penetrating oil containing kerosene and amyl acetate. The proportions of the constituents-were as follows:
Lubricating oil sold as Rimers heavy grade H oil ounces 5 Kerosene do 4 Amyl acetate dram Concentrated solution of sodium tauro glyco cholate in alcohol dram.. 1 Graphite in the form sold as Rimers graphite suspension (running-in compound) dram -1 Instead of the alcohol neutral esters such as the glycerol esters or palmitic, oleic or stearic acidsmay be used as solvent for the tauro glyco cholate.
' What I claim as my invention and desire to secure by Letters Patent is: r
1. A lubricating preparation comprising a inbricating oil, a salt of a bile acid and a liquid lactate of an aliphatic alcohol having more than four carbon atoms.
2. A lubricating preparation comprising a lubricating oil and sodium tauro glyco cholate and a liquid lactate of an aliphatic alcohol having more than four carbon atoms, in suflicient quantityv to form a compatible solution with the lubricating oil.
3. A' lubricating preparation consisting of a lubricating oil and more than 0.1% of sodium tauro glyco cholate dissolved in suflicient amyl lactate to form a compatible solution with the lubricating oil.
4. A lubricating preparation comprising a lubricating oil and sodium tauro glyco cholate and suflicient amyl lactate to form a compatible solution with the lubricating oil.
5. A lubricating preparation comprising a mineral lubricating oil and sodium tauro glyco cholate and sufilcient amyl lactate to form a compatible solution with the mineral lubricating oil.
6. A process for preparing a lubricating preparation which comprises dissolving a salt of a bile acid in amyl lactate and adding the said solution to a lubricating oil.
'7. A process for preparing a lubricating preparation which comprises dissolving a salt of a bile acid in amyl lactate and adding the said solution to a mineral lubricating oil.
' 8. A process for preparing a lubricating preparation which comprises dissolving sodium tauro glyco cholate in suificient amyl lactate to form a compatible solution with a mineral lubricating oil and adding the said solutionto the lubricating oil.
HUGH FRANCIS GREEN.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2104641X | 1934-12-05 |
Publications (1)
Publication Number | Publication Date |
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US2104641A true US2104641A (en) | 1938-01-04 |
Family
ID=10898558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US34842A Expired - Lifetime US2104641A (en) | 1934-12-05 | 1935-08-05 | Lubricating preparation |
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Country | Link |
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US (1) | US2104641A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852466A (en) * | 1956-05-24 | 1958-09-16 | California Research Corp | Grease compositions wherein the thickener comprises a metal salt of an nu-acylaminoorganocarboxylic acid |
-
1935
- 1935-08-05 US US34842A patent/US2104641A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852466A (en) * | 1956-05-24 | 1958-09-16 | California Research Corp | Grease compositions wherein the thickener comprises a metal salt of an nu-acylaminoorganocarboxylic acid |
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