Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H1/00—Contacts
  • H01H1/60—Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces
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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
  • C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
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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
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/02—Hydroxy compounds
  • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
  • C10M2207/024—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings having at least two phenol groups but no condensed ring
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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
  • C10M2207/02—Hydroxy compounds
  • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
  • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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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
  • C10M2207/125—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
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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
  • 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
  • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
  • C10M2211/024—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only aromatic
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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
  • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
  • C10M2211/042—Alcohols; Ethers; Aldehydes; Ketones
• • 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
  • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
  • C10M2211/044—Acids; Salts or esters thereof
• • 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
  • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2211/06—Perfluorinated compounds
• • C—CHEMISTRY; METALLURGY
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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
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups 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
  • 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
• • 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
  • C10M2215/062—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups bound to the aromatic ring
• • 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
  • C10M2215/064—Di- and triaryl amines
  • C10M2215/065—Phenyl-Naphthyl amines
• • C—CHEMISTRY; METALLURGY
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  • 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
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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
  • C10M2215/02—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
  • C10M2215/067—Polyaryl amine alkanes
• • 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
  • C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
• • 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
  • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
  • C10M2215/26—Amines
• • 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
  • C10M2219/04—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
• • 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
  • C10N2010/02—Groups 1 or 11
• • 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
  • C10N2010/04—Groups 2 or 12
• • 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
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/14—Electric or magnetic purposes
  • C10N2040/16—Dielectric; Insulating oil or insulators
• • 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
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/14—Electric or magnetic purposes
  • C10N2040/17—Electric or magnetic purposes for electric contacts
• • 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

• the grease consists essentially of (a) a major amount of parafiinic mineral oil;
• the present invention relates to an electric contact grease which has particular application in power switches of electrical machines and apparatuses.
• Usual electric contacts of, for example, television and radio are subjected to contact failure and contact welding and are responsible for troubles such as sound noise, picture failure, impossibility of contact opening and the like.
• contact grease is to prevent oxidation, sulfation and wear of contact metals and thereby to stabilize the electric contact resistance and to prevent noise and at the same time, prevent contact welding by restraining temperature rise of the electric contacts.
• An object of the present invention is to provide a contact grease capable of suppressing a rise in the electric contact resistance of an electric contact.
• a further object of the present invention is to provide a contact grease which prevents an electric contact from wearing.
• Another object of the present invention is to provide a contact grease useful for use in an electric contact formed by copper, brass, phosphorous bronze, beryllium copper and nickel silver.
• a contact grease according to the present invention consists essentially of a major amount of paraflinic mineral 3,632,509 Patented Jan. 4, 1972 oil, 10 to 20 percent by weight of, as a thickening agent, a mixture of metallic soaps and 7 to 15 percent by weight of at least one member selected from the group consisting of chlorinated aromatic hydrocarbon and its derivatives.
• Said mixture of metallic soaps consists essentially of 40 to 65 percent by weight of barium soap, 25 to 40 percent by weight of lithium soap and 10 to 20 percent by weight of aluminum soap in accordance with the present invention.
• the novel contact grease according to the present invention prevents an electric contact from failing, and welding which ensures a satisfactory contacting action for a longer time period especially when applied to an electric contact made of corrodible metal such as copper, brass, phosphorous bronze, beryllium copper and nickel silver.
• Antirust agent and/or antioxidant are preferably added to the composition of the grease.
• a contact grease according to the present invention can employ chlorinated aromatic hydrocarbon or its derivatives having a boiling point higher than 300 C. Chlorinated aromatic hydrocarbon or its derivatives serve to prevent temperature rise and contact wear by restraining burning of grease by arcing and at the same time by acting as lubricating agent.
• a better result can be obtained by employing at least one member selected from the group consisting of trichlorodiphenyl, tetrachlorodiphenyl, pentachlorodiphenyl, hexachlorodiphenyl, polychlorotriphenyl, pentachlorodiphenyl oxide, pentachlorophenyl benzoate, hexachlorodiphenyl methane, and pentachlorodiphenyl ketone.
• trichlorodiphenyl, tetrachlorodiphenyl, hexachlorodiphenyl, polychlorotriphenyl achieve the best results in accordance with the present invention.
• chlorinated aromatic hydrocarbon or derivative thereof is present in an amount lower than about 7% by weight, the temperature rise of contact goes higher, while an amount greater than about 15% by weight makes it difficult to produce a contact grease having a good homogeneity.
• the paraffinic mineral oil defined herein includes pure paraffinic mineral oil as well as impure paraflinic mineral oil having incorporated therein a small amount, for example up to 30% by weight of aromatic and/or naphthenic mineral oil. It is preferable that the paraffinic mineral oil has a viscosity of 40 to 180 cst. (at 37.8 C.) and an aniline point higher than in the ASTM D6ll-55T (American Society for Testing Materials).
• barium soap, lithium soap and aluminum soap including those containing an aliphatic fatty acid radical.
• Their chemical formulae are expressed by B-a(RCO O) Li(RCOO) and Al(RCOO) respectively wherein R is an alkyl radical.
• R is an alkyl radical.
• these chemical formulae should not be construed to define only pure substances, but include impure substances incorporated with unavoidable impurities.
• Al(RCOO) commercially available includes Al(OH) (RCOO) in an amount of less than 20 percent by weight and is operable for production of a contact grease according to the present invention. It is preferable that the R in the chemical formulae contains 12 to 20 carbon atoms.
• the most preferable barium soap, lithium soap and aluminum soap is one which includes a stearic acid radical.
• the content of free fatty acid of these metallic soaps is desirably small, preferably lower than 2 percent by weight.
• the barium soap in an amount higher than 65 percent by weight increases the electric contact resistance and the barium soap in an amount lower than 40 percent by weight impairs the resistance to welding of electric contact;
• the lithium soap in an amount lower than 25 percent by weight increases the electric contact resistance and the lithium soap in an amount higher than 40 percent by weight impairs the resistance to the welding;
• the aluminum soap in an amount higher than 20' percent by weight produces a contact grease which has a low pour point and is inferior in the resistance to heat and the aluminum soap in an amount lower than 10 percent by weight results in a contact grease which is poor in homogeneity.
• a contact grease according to the present invention can be improved by using an antioxidant and/ or a rust inhibitor.
• the preferable antioxidants are n-butyl-p-aminophenol, di-sec-butyl-p-phenylenediamine, 4,4'-tetramethyl-diaminodiphenyl methane, oc-naphthylamine, n,n'-di-salicylidene-1,2propylenediamine, 2,6-di-tert-butyl phenol, 2,4-dimethyl-6-tert-butyl phenol, 2,6-di-tert-butyl-p-cresol,
• the preferable rust inhibitor is sonbitan mono-oleate, salt of dinonyl naphthalene sulphonate, a-(2-carboxy phenoxy) stearic acid.
• the amount of the antioxidant is preferably 0.01 to about 3 percent by weight, that is 0.01 to 3 percent by weight of the antioxidant and about 97 to 99.99 percent by weight of the contact grease.
• the amount of the rust inhibitor is 0.01 to about 4 percent by weight of the rust inhibitor and about 96 to 99.99 percent by weight of the contact grease.
• a mixture of the paraflinic mineral oil, the mixture of the metallic soaps, the chlorinated aromatic hydrocarbon or its derivatives with or without antioxidant and rust inhibitor is heated at 200-250 C., to make a homogeneous liquid and then cooled to room temperature.
• the cooled mixture is milled by a usual method, e.g. employing three roll mills, and is subjected to the removal of airfoams at a reduced pressure.
• the resulting greases are smooth and buttery in texture and have excellent mechanical and thermal stability.
• EXAMPLE 1 A mixture of 74.7 g. of paraflinic mineral oil having viscosity of 60 cst. at 37.8 C. and aniline point of 11.7 C., 8 g. of barium stearate (M.P. 235 C.), 5 g. of lithium stearate (M.P. 221 C.), 2 g. of aluminum stearate (M.P. 112 C.), g. of polychlorotriphenyl, 0.1 g. of 4,4- tetramethyl diamino diphenyl methane and 0.2 g. of sorbitan monooleate is stirred and heated at 230 to 240 C.
• the mixture After being homogenized the mixture is poured into a dish and cooled to room temperature, milled with a three roll mill, and then the remaining foam of the grease is removed under reduced pressure.
• the resulting grease is stable and has an ASTM penetration of 332 and a pour point of 120 C.
• the grease is applied to an electric con tact made of copper and brass. The grease action is shown in Example No. l of the table.
• EXAMPLE 2 A mixture of 70.5 g. of paraflinic mineral oil having viscosity of about 50 cst. at 37.8 C. and aniline point of 1 02.7 C., 10 g. of barium stearate (M.P. 235 C.), 7 g. of lithium stearate, 4 g. of aluminum stearate, 8 g. of polychlorotriphenyl, and 0.5 g. of 2,6-di-tert-butyl phenol is heated at 235 to 245 C. After being homogenized the mixture is cooled, milled and treated in a manner similar to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.
• EXAMPLE 3 A mixture of 73.8 g. of parafiinic mineral oil having viscosity of 120cst. at 37.8 C. and aniline point of 114.9 C., 6 g. of barium stearate (M.P. 250 C.), 4 g. of lithium stearate (M.P. 221 C.), 2 g. of aluminum stearate, 14 g. of polychlorotriphenyl, 0.2 g. of Na salt of dinonyl naphthalene sulphonate is stirred and heated at about 250 C. The clear fluid solution is treated in a way similar to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.
• EXAMPLE 4 A mixture of 75.4 g. of parafi'inic mineral oil having viscosity of cst. at 37.8 C. and aniline point of 114.0 C., 7 g. of barium stearate, 5 g. of lithium laurate (M.P. 219 C.). 1.5 g. of aluminum stearate, 8 g. of hexachloro diphenyl, 0.1 g. of tetra base and 3 g. of sorbitan monooleate is heated in a beaker until its temperature reaches about 240 C. The resulting mixture is treated in a way similar to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.
• EXAMPLE 5 A mixture of 72.9 g. of parafiinic mineral oil having viscosity of 60 cst. at 37.8 C. and aniline point of 111.7 C., 10 g. of barium stearate, 5 g. of lithium laurate (M.P. 219 C.), 3 g. of aluminum stearate and 9.1 g. of tetrachloro diphenyl is stirred and heated in a beaker until its temperature reached about 250 C. The resulting mixture is treated in a way similar to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.
• EXAMPLE 6 A mixture of 70.9 g. of paraflinic mineral oil having viscosity of 80 cst. at 37.8 C. and aniline point of 114.0 C., 9 g. of barium stearate (M.P. 240 C.), 6 g. of lithium laurate (M.P. 219 C.), 2 g. of aluminum stearate (M.P. C.), 12 g. of polychlorotriphenyl and 0.1 g. of tetra base is stirred and heated in a beaker and treated in a way similar to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.
• EXAMPLE 7 A mixture of 73.7 g. of parafiinic mineral oil having viscosity of 80 cst. at 37.8 C. and aniline point of 114.0 C., 8 g. of barium stearate, 6 g. of lithium stearate, 2.2 g. of aluminum stearate, 10 g. of polychlorotriphenyl and 0.1 g. of tetra base is stirred and heated in a beaker and treated in a way similar to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.
• EXAMPLE 9 A mixture of 76.5 g. of parafiinic mineral oil having viscosity of cst. at 37.8 C. and aniline point of 114.9 C., 8 g. of barium stearate, 4 g. of lithium stearate, 1.5 g. of aluminum stearate, 9 g. of hexachloro diphenyl, and 1.0 g. of 2,2-methylene bis(4-methyl-6-tert-butyl phenol) is stirred and heated in a beaker and treated in a way similarly to that of Example 1. The testing result carried out similarly to Example 1 is shown in the table.

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• General Chemical & Material Sciences (AREA)
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• Organic Chemistry (AREA)
• Lubricants (AREA)

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• 1969
  • 1969-06-11 JP JP44047059A patent/JPS4944228B1/ja active Pending
• 1970
  • 1970-01-09 US US1893A patent/US3632509A/en not_active Expired - Lifetime
  • 1970-01-14 DE DE19702002333 patent/DE2002333B2/de active Pending
  • 1970-05-14 NL NL707007005A patent/NL147183B/xx not_active IP Right Cessation
  • 1970-05-15 GB GB23682/70A patent/GB1271617A/en not_active Expired
  • 1970-06-09 FR FR7021170A patent/FR2045979B1/fr not_active Expired

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