US2201217A - Lubricant - Google Patents

Lubricant Download PDF

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Publication number
US2201217A
US2201217A US160824A US16082437A US2201217A US 2201217 A US2201217 A US 2201217A US 160824 A US160824 A US 160824A US 16082437 A US16082437 A US 16082437A US 2201217 A US2201217 A US 2201217A
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water
fixed oil
oil
soap
water insoluble
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US160824A
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Herman E Ballard
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/082—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/102—Polyesters
    • 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
    • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/08—Solids
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

Definitions

  • This invention relates to improvements in solid lubricants and more particularly to that class of lubricants designed to be used for lubricating and sealing the moving surfaces of valves.
  • One object of the invention is to maintain the consistency of such lubricants substantially stable over wide temperature ranges.
  • Another object of the invention is to render the lubricants insoluble in petroleum hydrocarbons and aqueous liquids and unaffected by steam.
  • Another object of the invention is to insure suflicient stability at elevated temperatures to retain the lubricating and sealing properties of the lubricants substantially intact.
  • the water insoluble metal soaps of thickened fixed oils have the properties desirable for the services in which these lubricants are used.
  • the water insoluble metal soaps may be made" by saponifying the oils with sodium hydroxide to form sodium soaps.
  • the water solution of the sodium soap is added to a water solution of metal salt.
  • the insoluble metal soaps thus formed are washed free of any salts and dried.
  • the soaps are then blended or compounded by heating and stirring with a liquid that is insoluble in water and petroleum hydrocarbons to form the lubricant having the desired qualities.
  • the water insoluble metal soaps which have been found suitable are those of thickened vegetable or animal oils.
  • oils include castor, rape seed, ,flsh, linseed, corn, cotton seed, tung and soja bean.
  • This thickening process may consist of blowing, polymerizing, vulcanizing or oxidizing.
  • blowing which comprises blowing air through the oils at elevated temperatures, the oils are caused to take up oxygen and form -OH groups and two or more of the molecules of the oil are caused to combine to form larger molecules.
  • the vulcanized oils are formed by heating in contact with sulphur whereby the molecules of oil combine to form larger molecules. Consequently, it will be apparent that all highly blown, vulcanized, oxidized or polymerized animal or vegetable oils can be made into metal soaps that are insoluble in both water and petroleum hydrocarbons.
  • Typical metal salts to which the sodium soap may be added to form water insoluble metal soaps are aluminum, magnesium or calcium sulphates.
  • the material with which the water insoluble metal soaps may be blended to form lubricants having the desired properties may be chosen from those polar non-polar substances or liquids of high molecular weight.
  • Such materials include the compounds belonging to the glyptal resin class, such as rezyl balsam and have the properties of being liquid at 40 F. and having a solubility oi less than 2% in gasoline at 70 F.; or the thickened fixed oils, such as castor oils, blown rape seed oil, and blown fish oil; or the mono-esters oi.
  • the acids of thickened fixed oils including the mono-esters of blown castor oil acid, blown rape seed oil acid, blown fish oil acid and polyhydric alcohols such as glycerine or ethylene glycol.
  • the preferred rezyl balsam is that known to those skilled in the'art as No. 33.
  • This material is an ester made from glycerol and phthalic acid and is known as a compound belonging to the glyptal resin class. In preparing this material a resin is formed by heating glycerol and phthalic acid and forming a composition in which there are still some free -OH groups left.
  • a nonoxidizing fatty'acid such as stearic acid is added which reacts with a part of the remaining --OH groups, tending to make the resin more water resistant and also contributing to molecular weight, but not increasing resin formation.
  • This class of materials generally has -OH groups that tend to make them insoluble in hydrocarbons and a number of hydrocarbon groups that tend to make them insoluble in water. If the number of -OH groups and hydrocarbon groups is properly balanced it is possible to make resins that are only slightly soluble in water and hydrocarbons.
  • Such a compound is rezyl balsam" No. 33, and as this particular material has large molecules it has a low vapor pressure at high temperatures and tends to be less soluble in all solvents.
  • the thickened fixed oil such as air blown castor oil
  • the sodium hydroxide in water.
  • a solution made from the metal salt and water, such as aluminum sulphate and water is added to the sodium soap thus formed.
  • the insoluble soap which results from the mixture is first washed free of all salts on a filter, and,
  • the stabilizing agent such as rezyl balsam is added thereto.
  • the mixture is then heated to approximately 400 F. with constant stirring until all the water is evaporated and the aluminum soap is completely suspended.
  • polar non-polar material such as the thickened fixed oils, including those mentioned, may be substituted for the compound of the glyptalresin class given in the foregoing formula.
  • mono-esters of the acids of thickened fixed oils and glycerine or ethylene glycol may be substituted for the compound of the glyptalresin class given in the foregoing formula.
  • the resulting product after cooling comprises a heavy, viscous material which is insoluble in water and petroleum hydrocarbons, such as gasoline, kerosene, mineral oil and the like, and has sufiicient consistency at 400 F. to seal and lubricate the seating surfaces of valves subjected to high pressures.
  • a small percentage of a thickened fixed oil, such as blown castor oil may be added to stabilize the suspension at lower temperatures.
  • a small percentage of a vegetable wax such as carnauba wax, may be added.
  • the wax imparts certain plastic properties which enables these sticks to retain the desired shape.
  • An average composition of the lubricant is as follows:
  • the thickened fixed oil and vegetable wax can be omitted if the properties they impart are not desired.
  • the ratio of water insolublemetal soap to rezyl balsam can vary between limits of 25% water insoluble metal soap and 75% rezyl balsam to water insoluble metal soap and 45% rezyl balsam. Taking these variations into account and including the thickened fixed oil and vegetable wax the composition limits may comprise:
  • invention 1 is ideally suited for use in lubricating and sealing the'moving surfaces of valves it is not limited to such applications, but finds a Wide field of usefulness, particularly in devices where solvent action is of importance such as pump and valve packing lubricants.
  • the process of manufacturing solid lubricants which comprises mixing a water insoluble metal soap of thickened fixed oil with a polar non-polar material of high molecular weight having sufiicient hydrocarbon groups to be substantially insoluble in water and sufficient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, and heating said mixture until the water insoluble metal soap is completely suspended.
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having sufiicient hydrocarbon groups to be substantially insoluble in water and sufficient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons.
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a compound of the glyptal resin class which is liquid above 40 Fahrenheit and has a solubility of less than two per cent in gasoline at 70 Fahrenheit.
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil, a compound of the glyptal resin class which is liquid above 40 Fahrenheit and has a solubility of less than two per cent in gasoline at 70 Fahrenheit, and a small percentage each of stabilizing and solidifying agents.
  • a solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of a polar non-polar material of high molecular weight having suflicient hydrocarbon groups to be substantially insoluble in water and sufiicient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons.
  • a solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of a compound of the glyptal resin class which is liquid above 40 Fahrenheit and has a solubility of less than two per cent in gasoline at 70 Fahrenheit.
  • a solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of thickened fixed oil.
  • a solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of the mono-ester of the acid of thickened fixed oil and a polyhydric alcohol.
  • a solid lubricant comprising about the following formula:
  • Percent Water insoluble metal soap of thickened fixed oil 22.2 to 49.0
  • a compound of the glyptal resin class (liquid above 40 Fahrenheit and less than two per cent soluble in gasoline at 70 Fahrenheit) 40.0 to 66.8
  • a solid lubricant comprising about the following formula:
  • Percent Water insoluble metal soap of fixed oil 22.2 to 49.0
  • a compound of the glyptal resin class liquid above 40 Fahrenheit and less than two per cent soluble in gasoline at Fahrenheit) 40.0 to 66.8 Thickened fixed oil 2.8 Vegetable wax 7.2
  • a solid lubricant comprising about the following formula:
  • a solid lubricant comprising about the following formula:
  • a solid lubricant comprising about the following formula:
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having sufflcient hydrocarbon groups to be substantially insoluble in water and suflicient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, said material being liquid above 40 F. and having a solubility of less than 2% in gasoline at 70 F.
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having sufilcient hydrocarbon groups to be substantially insoluble in water and sufilcient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, said lubricant having sufiicient consistency at 400 F. to seal and lubricate the seating surfaces of valves subjected to high pressures.
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having suflicient hydrocarbon groups to be substantially insoluble in water and sufiiclent hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, said material being liquid above 40 F. and having a solubility of less than 2%, in gasoline at 70 F., said lubricant having sufficient consistency at 400 F. to seal and lubricate the seating surfaces of valves subjected to high pressures.
  • a solid lubricant comprising a water insoluble metal soap of thickened fixed oil and rezyl balsam.

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

Description

Patented May 21, 1940 UNITED STATES PATENT OFFICE No Drawing.
Application August 25, 1937,
Serial No. 160,824
21 Claims.
This invention relates to improvements in solid lubricants and more particularly to that class of lubricants designed to be used for lubricating and sealing the moving surfaces of valves.
One object of the invention is to maintain the consistency of such lubricants substantially stable over wide temperature ranges.
Another object of the invention is to render the lubricants insoluble in petroleum hydrocarbons and aqueous liquids and unaffected by steam.
Another object of the invention is to insure suflicient stability at elevated temperatures to retain the lubricating and sealing properties of the lubricants substantially intact.
It has been found that the water insoluble metal soaps of thickened fixed oils have the properties desirable for the services in which these lubricants are used. The water insoluble metal soaps may be made" by saponifying the oils with sodium hydroxide to form sodium soaps. The water solution of the sodium soap is added to a water solution of metal salt. The insoluble metal soaps thus formed are washed free of any salts and dried. The soaps are then blended or compounded by heating and stirring with a liquid that is insoluble in water and petroleum hydrocarbons to form the lubricant having the desired qualities.
The water insoluble metal soaps which have been found suitable are those of thickened vegetable or animal oils. Such oils include castor, rape seed, ,flsh, linseed, corn, cotton seed, tung and soja bean. This thickening process may consist of blowing, polymerizing, vulcanizing or oxidizing. In the case of blowing, which comprises blowing air through the oils at elevated temperatures, the oils are caused to take up oxygen and form -OH groups and two or more of the molecules of the oil are caused to combine to form larger molecules. The vulcanized oils are formed by heating in contact with sulphur whereby the molecules of oil combine to form larger molecules. Consequently, it will be apparent that all highly blown, vulcanized, oxidized or polymerized animal or vegetable oils can be made into metal soaps that are insoluble in both water and petroleum hydrocarbons.
Typical metal salts to which the sodium soap may be added to form water insoluble metal soaps are aluminum, magnesium or calcium sulphates.
The material with which the water insoluble metal soaps may be blended to form lubricants having the desired properties may be chosen from those polar non-polar substances or liquids of high molecular weight. Such materials include the compounds belonging to the glyptal resin class, such as rezyl balsam and have the properties of being liquid at 40 F. and having a solubility oi less than 2% in gasoline at 70 F.; or the thickened fixed oils, such as castor oils, blown rape seed oil, and blown fish oil; or the mono-esters oi. the acids of thickened fixed oils including the mono-esters of blown castor oil acid, blown rape seed oil acid, blown fish oil acid and polyhydric alcohols such as glycerine or ethylene glycol. The preferred rezyl balsam is that known to those skilled in the'art as No. 33. This material is an ester made from glycerol and phthalic acid and is known as a compound belonging to the glyptal resin class. In preparing this material a resin is formed by heating glycerol and phthalic acid and forming a composition in which there are still some free -OH groups left. A nonoxidizing fatty'acid such as stearic acid is added which reacts with a part of the remaining --OH groups, tending to make the resin more water resistant and also contributing to molecular weight, but not increasing resin formation. This class of materials generally has -OH groups that tend to make them insoluble in hydrocarbons and a number of hydrocarbon groups that tend to make them insoluble in water. If the number of -OH groups and hydrocarbon groups is properly balanced it is possible to make resins that are only slightly soluble in water and hydrocarbons. Such a compound is rezyl balsam" No. 33, and as this particular material has large molecules it has a low vapor pressure at high temperatures and tends to be less soluble in all solvents.
In carrying out this invention, a. preferred formula is as follows:
' Percent Thickened fixed oil 26.0 Sodium hydroxide 3.2 Metal salt 9.8 Water 26.0 Rezyl balsam 35.0
In making this improved lubricant the thickened fixed oil, such as air blown castor oil, is saponified with the sodium hydroxide in water. To the sodium soap thus formed there is added a solution made from the metal salt and water, such as aluminum sulphate and water. The insoluble soap which results from the mixture is first washed free of all salts on a filter, and,
after being placed in a suitable vessel, the stabilizing agent such as rezyl balsam is added thereto. The mixture is then heated to approximately 400 F. with constant stirring until all the water is evaporated and the aluminum soap is completely suspended.
It will be understood that other polar non-polar material, such as the thickened fixed oils, including those mentioned, may be substituted for the compound of the glyptalresin class given in the foregoing formula. Also the mono-esters of the acids of thickened fixed oils and glycerine or ethylene glycol.
The resulting product after cooling, comprises a heavy, viscous material which is insoluble in water and petroleum hydrocarbons, such as gasoline, kerosene, mineral oil and the like, and has sufiicient consistency at 400 F. to seal and lubricate the seating surfaces of valves subjected to high pressures. If desired, a small percentage of a thickened fixed oil, such as blown castor oil, may be added to stabilize the suspension at lower temperatures. In addition, to make the lubricant more solid, a small percentage of a vegetable wax, such as carnauba wax, may be added. As it is usual to form the lubricant into stick form for convenience in use on lubricated valves, the wax imparts certain plastic properties which enables these sticks to retain the desired shape.
An average composition of the lubricant is as follows:
Percent Water insoluble metal soap of thickened fixed oil 38.2 Rezyl balsam A 51.8 'I'hickened fixed oil 2.8 Vegetable wax 7.2
As stated, the thickened fixed oil and vegetable wax, can be omitted if the properties they impart are not desired. The ratio of water insolublemetal soap to rezyl balsam can vary between limits of 25% water insoluble metal soap and 75% rezyl balsam to water insoluble metal soap and 45% rezyl balsam. Taking these variations into account and including the thickened fixed oil and vegetable wax the composition limits may comprise:
Percent Water insoluble metal soap of thickened fixed oil 22.2 to 49.0 Rezyl balsam 40.0 to 66.8 Thickened fixed oil 2.8 Vegetable wax 7.2
It will be understood that while the invention 1 is ideally suited for use in lubricating and sealing the'moving surfaces of valves it is not limited to such applications, but finds a Wide field of usefulness, particularly in devices where solvent action is of importance such as pump and valve packing lubricants.
I claim:
1. The process of manufacturing solid lubricants which comprises mixing a water insoluble metal soap of thickened fixed oil with a polar non-polar material of high molecular weight having sufiicient hydrocarbon groups to be substantially insoluble in water and sufficient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, and heating said mixture until the water insoluble metal soap is completely suspended.
2. The process of manufacturing solid lubricants which comprises mixing a water insoluble metal soap of thickened fixed oil with-a polar non-polar material of high molecular weight having sumcient hydrocarbon groups to be substantially insoluble in water and sufiicient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, heating said mixture until the water insoluble metal soap is completely suspended, and adding stabilizing and solidifying agents.
3. The process of manufacturing solid lubricants which comprises saponifying a thickened fixed oil with sodium hydroxide in water, processing with a water solution of a metal salt until a water insoluble salt-free metal soap is formed, adding rezyl balsam, and heating the mixture until the water insoluble metal soap is completely suspended.
4. The process of manufacturing solid lubricants which comprises saponiiying air blown castor oil with sodium hydroxide in water, processing with a water solution of aluminum sulphate until a water insoluble salt-free aluminum soap is formed, adding rezyl balsam, and heating the mixture until the aluminum soap is completely suspended.
.5. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having sufiicient hydrocarbon groups to be substantially insoluble in water and sufficient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons.
6. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a compound of the glyptal resin class which is liquid above 40 Fahrenheit and has a solubility of less than two per cent in gasoline at 70 Fahrenheit.
7. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil, a compound of the glyptal resin class which is liquid above 40 Fahrenheit and has a solubility of less than two per cent in gasoline at 70 Fahrenheit, and a small percentage each of stabilizing and solidifying agents.
8. A solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of a polar non-polar material of high molecular weight having suflicient hydrocarbon groups to be substantially insoluble in water and sufiicient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons.
9. A solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of a compound of the glyptal resin class which is liquid above 40 Fahrenheit and has a solubility of less than two per cent in gasoline at 70 Fahrenheit.
10. A solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of thickened fixed oil.
11. A solid lubricant comprising about 25% to 55% of a water insoluble metal soap of thickened fixed oil and 75% to 45% of the mono-ester of the acid of thickened fixed oil and a polyhydric alcohol.
12. A solid lubricant comprising about the following formula:
Percent Water insoluble metal soap of thickened fixed oil 22.2 to 49.0 A compound of the glyptal resin class (liquid above 40 Fahrenheit and less than two per cent soluble in gasoline at 70 Fahrenheit) 40.0 to 66.8
solidifying agents.
13. A solid lubricant comprising about the following formula:
Percent Water insoluble metal soap of fixed oil 22.2 to 49.0 A compound of the glyptal resin class (liquid above 40 Fahrenheit and less than two per cent soluble in gasoline at Fahrenheit) 40.0 to 66.8 Thickened fixed oil 2.8 Vegetable wax 7.2
' 14. A solid lubricant comprising about the following formula:
Percent Water insoluble metal soap of fixed oil 22.2 to 49.0 Rezyl balsam 40.0 to 66.8 Thickened fixed oil 2.8 Vegetable wax 7 .2
16. A solid lubricant comprising about the following formula:
Percent Aluminum soap of blown castor oil 22.2 to 49.0 Rezyl balsam 40.0 to 66.8 Blown castor oil 2.8 7.2
Carnauba wax 17. A solid lubricant comprising about the following formula:
Percent Aluminum soap of blown castor oil 38.2 Rezyl balsam 51.8 Blown castor oil 2.8 Carnauba wax 7.2
18. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having sufflcient hydrocarbon groups to be substantially insoluble in water and suflicient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, said material being liquid above 40 F. and having a solubility of less than 2% in gasoline at 70 F.
19. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having sufilcient hydrocarbon groups to be substantially insoluble in water and sufilcient hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, said lubricant having sufiicient consistency at 400 F. to seal and lubricate the seating surfaces of valves subjected to high pressures.
20. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil and a polar non-polar material of high molecular weight having suflicient hydrocarbon groups to be substantially insoluble in water and sufiiclent hydroxyl groups to be substantially insoluble in petroleum hydrocarbons, said material being liquid above 40 F. and having a solubility of less than 2%, in gasoline at 70 F., said lubricant having sufficient consistency at 400 F. to seal and lubricate the seating surfaces of valves subjected to high pressures.
21. A solid lubricant comprising a water insoluble metal soap of thickened fixed oil and rezyl balsam".
HER-MAN E. BAILARD.
US160824A 1937-08-25 1937-08-25 Lubricant Expired - Lifetime US2201217A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560051A (en) * 1942-10-14 1951-07-10 Firestone Tire & Rubber Co Friction material lubricant
US2689224A (en) * 1950-12-16 1954-09-14 Honorary Advisory Council Sci Friction reducing additives for lubricants

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560051A (en) * 1942-10-14 1951-07-10 Firestone Tire & Rubber Co Friction material lubricant
US2689224A (en) * 1950-12-16 1954-09-14 Honorary Advisory Council Sci Friction reducing additives for lubricants

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