US2198851A - Compounded lubricating oil - Google Patents

Compounded lubricating oil Download PDF

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Publication number
US2198851A
US2198851A US109546A US10954636A US2198851A US 2198851 A US2198851 A US 2198851A US 109546 A US109546 A US 109546A US 10954636 A US10954636 A US 10954636A US 2198851 A US2198851 A US 2198851A
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Prior art keywords
lubricating oil
lubricating
oil
esters
aluminum
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US109546A
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John C Zimmer
Arnold J Morway
Peter J Gaylor
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Standard Oil Development Co
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Standard Oil Development Co
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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
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with 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
    • 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
    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more 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
    • C10M2207/28—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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
    • 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
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • 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
    • C10M2207/283—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
    • C10M2207/286—Esters of polymerised unsaturated acids
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
    • 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
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/066—Arylene diamines
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • C10M2219/088—Neutral 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • C10M2219/089—Overbased 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
    • 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
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/06—Groups 3 or 13

Definitions

  • This invention relates to compounded lubricating oils which consist of mineral 'oil containing small percentages of metallic soaps, and is more particularly concerned with stabilizing agents,
  • metallic soaps such as aluminum soaps of saturated fatty acids having more than ten carbon' atoms.
  • These soaps serve to improve the properties of the lubricating oil, particularly for use in Diesel, automotive, and other combustion 'type engines.
  • the soaps are usuallyadded in quantities varying from 1 to 5%.
  • stabilizing agents will be fully disclosed below.
  • esters ofpolyhydroxy alcohols with monobasic acids are especially satisfactory as stabilizing agents ing more than ten carbon atoms.
  • the preferred esters are those having boiling points above 100 C. and preferably above 200 C. They may be added to lubricating oil containing from l'to 5% of aluminum soap in quantities from to .5 to 5 or even 10%.
  • the compounded lubricating oils according to the present invention are prepared by adding from 1 to 5% of aluminum soap, such as aluminum stearate, to a lubricating oil having a Saybolt viscosity at 210 F. varying between and 200 seconds. To this mixture is then added small percentages of the high boiling esters which'act in the capacity of a stabilizing agent.
  • the high boiling esters of polyhydroxy alcohols with monobasicacids may be mentioned glycol mono-propionyl (propionate), glycerylmonostearate glyceryl diacetate (diacetin), lycerol triacetate (triacetin). glycol monobutyrate, diglycol triacetate, and diglyceryl' naphthenate. Of these esters the glycol propionyl is especially suitable.
  • high boiling esters of mono- I hydroxy alcohols with polybaslc acids may be I Lubricating oils are frequently compounded mixture is heated while agitating to 300 F. and
  • oxidation inhibitors which prevent corrosion of copper-lead bearings by the soap.
  • suitable oxidation inhibitors may be men tioned phenol sulfides or disulfldes', such as tertiary butyl phenol sulfide, secondary amyl phenol disulflde, amyl trisulflde, and a mixture of ben zldine with diethyl tartrate.
  • other substances may be added, such as thickening agents, dyes, pour inhibitors, oiliness agents, and in general any other type of sub- 15 stances which may be added to lubricating oil to improve its properties.
  • Example 1 a 1% aluminum stearate-and .1% glycol monopropionyl are added to a Coastal Pale Oil having a Saybolt viscosity at 210 F. of 65 seconds. This allowed to cool.
  • the mixture on cooling is a uniform, clear, transparent lubricating oil, free from gelled particles and especially suitable for Diesel engine lubrication.
  • Example 2 4% aluminum stearate and .4% glycol monopropionyl are added to a paraflin distillate hav-' ing a Saybolt viscosity at 210 F. of 40 seconds. The mixture is heated to 300 F. while stirring vigorously and then allowed to cool.
  • Example 3 1% aluminum stearate and 1% of tricresyl phosphate is added to a Coastal Pale Oil having a Saybolt viscosity of seconds at 210 F. The mixture is heatedto 300 F. while stirring vigorously and allowed to cool.
  • This lubricant is a free-flowing oil suitable for internal combustion engine lubrication. The oil is particularly enhanced by the addition of the tricresyl phosphate forming a lubricant of high film strength.
  • An improved normally liquid lubricating oil comprising mineral oil, an aluminum soap, and I a small percentage 01. a high boiling selected from. the class consisting of esters of polyhydroxy alcohols with monobasic acids.
  • An improved normally liquid lubricating oil comprising a petroleum lubricating fraction, an aluminum soap of' a saturated fatty acld'having more than ten carbon atoms, and a small percentage of a high boiling ester oi a polyhydroxy alcohol with a monobasic acid.
  • An improved normally liquid lubricating oil comprising a petroleum lubricating fraction, 1
  • An improved normally liquid lubricating oil comprising a petroleum lubricating traction, 1
  • An' improved normally liquid lubricating oil f comprising mineral oil, aluminum soap, and a small percentage of a high boiling hydroxy ester of a. monobasic acid.
  • An improved normally liquid lubricating oil comprising a lubricating fraction of petroleum, 1 to 5% of "aluminum stearate and between 0.001
  • An improved normally liquid lubricating oil comprising a petroleum lubricating iraction,.1

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Description

Patente rl'Apr. 30, 1940 PATENT OFFICE oomormnnnwaarcama on. i
Peter J. Wiezevich, Elizabeth, John' O. Zimmer, Hillside, and Arnold J. Morway, Roselle, N.J.; said Wiemevich, now by judicial change of name to Peter J. Gaylor, assignors to Standard Oil Development Company, a corporation of Delaware No Drawing. Application November 6, 1930, Serial No. 109,546
10 Claims.
This invention relates to compounded lubricating oils which consist of mineral 'oil containing small percentages of metallic soaps, and is more particularly concerned with stabilizing agents,
therefor.
with metallic soaps, such as aluminum soaps of saturated fatty acids having more than ten carbon' atoms. These soaps serve to improve the properties of the lubricating oil, particularly for use in Diesel, automotive, and other combustion 'type engines. The soaps are usuallyadded in quantities varying from 1 to 5%.
It is found that thesoap does not remain completely dispersed in the lubricating oil but tends to separate out on standing orto cause gel formation. It is desirable in all cases where compounded lubricating oils are to be used in internal combustion engines to preserve the fluid characteristics of the lubricating oil and to prevent, in so far as possible, any gel formation;
It is an object of the present invention to provide certain substances which act as stabilizing agents to prevent the gelation of suchvmetallic soaps in lubricating oil. The nature of these stabilizing agents will be fully disclosed below.
It has been found that high boiling esters ofpolyhydroxy alcohols with monobasic acids, or of monohydroxy alcohols with polybasic acids, are especially satisfactory as stabilizing agents ing more than ten carbon atoms. The preferred esters are those having boiling points above 100 C. and preferably above 200 C. They may be added to lubricating oil containing from l'to 5% of aluminum soap in quantities from to .5 to 5 or even 10%.
The compounded lubricating oils according to the present invention are prepared by adding from 1 to 5% of aluminum soap, such as aluminum stearate, to a lubricating oil having a Saybolt viscosity at 210 F. varying between and 200 seconds. To this mixture is then added small percentages of the high boiling esters which'act in the capacity of a stabilizing agent. 0 As examples of the high boiling esters of polyhydroxy alcohols with monobasicacids may be mentioned glycol mono-propionyl (propionate), glycerylmonostearate glyceryl diacetate (diacetin), lycerol triacetate (triacetin). glycol monobutyrate, diglycol triacetate, and diglyceryl' naphthenate. Of these esters the glycol propionyl is especially suitable.
As examples of high boiling esters of mono- I hydroxy alcohols with polybaslc acids may be I Lubricating oils are frequently compounded mixture is heated while agitating to 300 F. and
for'aluminum soaps of saturated fatty acids havmentioned triethyl citrate, tricresyl phosphate, and oleyl malonate. Of these esters tricresyl phosphate is especially suitable.v
In many cases it is desirable also to add to the compounded lubricating on certain oxidation inhibitors which prevent corrosion of copper-lead bearings by the soap. As examples of suitable oxidation inhibitors for this purpose may be men tioned phenol sulfides or disulfldes', such as tertiary butyl phenol sulfide, secondary amyl phenol disulflde, amyl trisulflde, and a mixture of ben zldine with diethyl tartrate. In addition to these materials other substances may be added, such as thickening agents, dyes, pour inhibitors, oiliness agents, and in general any other type of sub- 15 stances which may be added to lubricating oil to improve its properties.
The following examples will illustrate the invention:-
Example 1 a 1% aluminum stearate-and .1% glycol monopropionyl are added to a Coastal Pale Oil having a Saybolt viscosity at 210 F. of 65 seconds. This allowed to cool. The mixture on cooling is a uniform, clear, transparent lubricating oil, free from gelled particles and especially suitable for Diesel engine lubrication.
Example 2 4% aluminum stearate and .4% glycol monopropionyl are added to a paraflin distillate hav-' ing a Saybolt viscosity at 210 F. of 40 seconds. The mixture is heated to 300 F. while stirring vigorously and then allowed to cool.
Example 3 1% aluminum stearate and 1% of tricresyl phosphate is added to a Coastal Pale Oil having a Saybolt viscosity of seconds at 210 F. The mixture is heatedto 300 F. while stirring vigorously and allowed to cool. This lubricant is a free-flowing oil suitable for internal combustion engine lubrication. The oil is particularly enhanced by the addition of the tricresyl phosphate forming a lubricant of high film strength.
This invention is not limited by any theories of the mechanism of "dispersion nor by any details which have been given merely for purposes oi illustration, but is limited only in and, by the following claims in which it is intended to claim ,all novelty inherent in the invention.
We claim: 1. An improved normally liquid lubricating oil comprising mineral oil, an aluminum soap, and I a small percentage 01. a high boiling selected from. the class consisting of esters of polyhydroxy alcohols with monobasic acids.
2. An improved normally liquid lubricating oil comprising a petroleum lubricating fraction, an aluminum soap of' a saturated fatty acld'having more than ten carbon atoms, and a small percentage of a high boiling ester oi a polyhydroxy alcohol with a monobasic acid.
3. An improved normally liquid lubricating oil comprising a petroleum lubricating fraction, 1
to 5% of stearate and between .001 and-5"% of an ester boiling above 200 0.. selected a from the class consisting of esters ofpolyhydroxy alcohols with monobasic acids. v 4. An improved normally liquid lubricating oil comprising a petroleum lubricating traction, 1
to 6% of aluminum stearate, and a small per- I comprising a lubricating traction of petroleum, 1 5% of aluminum stearate and between 0.001
and 5% of an ester boiling above-200 C. selected from the class consisting of esters of unsubstituted polyhydroxy alcohols with monobasic acids. I 7. An' improved normally liquid lubricating oil f comprising mineral oil, aluminum soap, and a small percentage of a high boiling hydroxy ester of a. monobasic acid.
' 8. An improved normally liquid lubricating oil comprising a lubricating fraction of petroleum, 1 to 5% of "aluminum stearate and between 0.001
and 5% of a hydroxy ester of a monobasic acid, said ester having a boiling point above 200 C.
9.:An improvedsnormally liquid lubricating 011 comprising a petroleum lubricating fraction, approximately '1% or aluminum stearate, and approximately 0.l% of glycol propionyl.
10. An improved normally liquid lubricating oil comprising a petroleum lubricating iraction,.1
to 5% or an aluminum soap of a saturate fatty 20 acid having more than 10 carbon atoms, and 0.001 to 10% of an ester of la polyhydroxy alcohol with a monobasic acidysaid ester having a boiling point above L100 C.
PETER J. WIEZEV-ICH. JOHN C.ZIM1VIER. ARNOLD J. MORWAY.
US109546A 1936-11-06 1936-11-06 Compounded lubricating oil Expired - Lifetime US2198851A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421159A (en) * 1942-05-20 1947-05-27 Emery Industries Inc Cutting oil base
US2421158A (en) * 1942-05-20 1947-05-27 Emery Industries Inc Cutting oil base
US2430842A (en) * 1946-07-31 1947-11-11 Atlantic Refining Co Lubricant and method of producing same
US2443833A (en) * 1942-05-20 1948-06-22 Emery Industries Inc Cutting oil base
US2466645A (en) * 1944-11-01 1949-04-05 Emery Industries Inc Cutting oil base
US2527889A (en) * 1946-08-19 1950-10-31 Union Oil Co Diesel engine fuel
US2616854A (en) * 1943-11-13 1952-11-04 Fenske Merrell Robert Hydraulic fluid
US2892781A (en) * 1953-02-27 1959-06-30 Exxon Research Engineering Co Soap-thickened grease modified with glycerine ester of a low molecular weight carboxylic acid

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421159A (en) * 1942-05-20 1947-05-27 Emery Industries Inc Cutting oil base
US2421158A (en) * 1942-05-20 1947-05-27 Emery Industries Inc Cutting oil base
US2443833A (en) * 1942-05-20 1948-06-22 Emery Industries Inc Cutting oil base
US2616854A (en) * 1943-11-13 1952-11-04 Fenske Merrell Robert Hydraulic fluid
US2466645A (en) * 1944-11-01 1949-04-05 Emery Industries Inc Cutting oil base
US2430842A (en) * 1946-07-31 1947-11-11 Atlantic Refining Co Lubricant and method of producing same
US2527889A (en) * 1946-08-19 1950-10-31 Union Oil Co Diesel engine fuel
US2892781A (en) * 1953-02-27 1959-06-30 Exxon Research Engineering Co Soap-thickened grease modified with glycerine ester of a low molecular weight carboxylic acid

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