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
  • 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
  • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
  • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
• • 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
  • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
  • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
  • C10M2203/108—Residual fractions, e.g. bright stocks
• • 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
  • C10M2207/02—Hydroxy compounds
  • C10M2207/023—Hydroxy compounds having hydroxy 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
  • 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
• • 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
  • C10M2207/02—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
• • 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
  • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic 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
  • 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

Definitions

• the invention relates to lubricating compositions and in particular to compositions based on mineral lubricating oils containing additives to impart oxidation resistance and anti-corrosion properties.
• a lubricating or anti-corrosive composition may contain small proportions of a compound obtained by the action of an aldehyde or ketone on a non-aromatic basic water-soluble primary or secondary monoamine.
• the present invention relates to compositions containing specifically one such additive together with a certain class of antioxidants which have been found to be specifically suitable for use therewith.
• a lubricating composition comprising a major proportion of a mineral lubricating oil, from 0.3 to 2.0 percent by weight of (a) benzal cyclohexylamine and from 0.25 to 2.0 percent by weight of (b) an alkyl phenol having at least one secondary or tertiary alkyl substituent in the ortho position to the hydroxyl group.
• the additive benzal cyclohexylamine appears to function in a lubricating composition not only as a corrosion inhibitor but also as a sludge dispersant; it may also be used with advantage in marine cylinder oils where, in some cases, this additive may be efiective as a dispersant and/or an inhibitor of varnish formation on pistons, as well as in some cases reducing cylinder liner wear.
• alkyl phenol of this invention may be represented by the general formula:
• R is a branched chain alkyl group of 3 to 8 carbon atoms attached to the benzene nucleus at a carbon atom at which branching occurs;
• R R and R are hydrogen, or methyl groups or are the same as R and
• X is hydrogen, or is the same as R or is one of the following two groups:
• Preferred compounds having the above general formula are those in which R; is the same as R i.e. is a branched tertiary alkyl group of 4 to 8 carbon atoms with no hydrogen atoms attached to the carbon atom adjacent to the benzene nucleus.
• additive (a) is present in the composition in amounts of from 0.5 to 1.0 percent by weight on the weight of the composition and that additive (b) is employed in amounts of from 0.3 to 1.0 percent by weight on the weight of the composition.
• a preferred composition according to the invention comprises a major proportion of a mineral lubricating oil comprising 0.5 percent by weight of benzal cyclohexylamine and from 0.3 to 0.5 percent by weight of methylene bis (2,6 di-t-butyl phenol).
• Mineral oil A is a blend consisting of 88% of a solvent refined mineral oil of viscosity about 145 seconds Redwood I at F. with 12% of a solvent refined brightstock of viscosity about 600 seconds Redwood I at 140 F.
• test data demonstrate that a lubricating composition suitable for lubricating marine crankcases which is based upon a mineral lubricating oil and contains benzal cyclohexylarnine is improved by the conjoint use therewith of antioxidants consisting of certain phenolic materials.
• Table I demonstrates that, as assessed by the total acid number and the demulsification value, a synergistic effect exists in those blends containing between 0.25 percent and 2.0 percent of the phenolic material in conjunction with between 0.3 percent and 2.0 percent of benzal cyclohexylamine. Further Table II demonstrates that a synergistic effect is present in the compositions containing benzal cyclohexylamine and mono or binuclear phenols.
• a lubricating composition comprising a major proportion of a mineral lubricating oil, from 0.3 to 2.0 percent by weight of (a) benzal cyclohexylamine and from 0.25 to 2.0 percent by weight of (b) an alkyl phenol having the following formula:
• R is a tertiary butyl group; R is selected from the group consisting of methyl and tertiary butyl groups, and
• X is selected from the group consisting of methyl, tertiary butyl and and where R and R are as defined above.
• composition as claimed in claim 1 wherein the alkyl phenol is 4,4 methylene bis(2,6 di-t-butyl phenol).
• a composition as claimed in claim 1 wherein the alkyl phenol is 2,6 di-t-butyl-4-methyl phenol 4.
• a composition as claimed in claim 1 wherein the alkyl phenol is 12,6 di-t-butyl phenol.
• composition as claimed in claim 1 wherein the alkyl phenol is 4,4 bis(2,6-cli-t-butyl phenol).
• composition as claimed in claim 1 wherein the alkyl phenol is 2,4 dimethyl 6t-butyl phenol.
• a lubricating composition comprising a major proportion of a mineral lubricating oil about 0.5 percent by weight of benzal cyclohexylamine and from 0.3 to 0.5 percent by weight of methylene bis (2,6 di-t-butyl phenol).

Landscapes

• 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)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10152229

Family Applications (1)

Country Status (5)

Cited By (3)

Citations (11)

Family Cites Families (2)

• 0
  • BE BE618661D patent/BE618661A/xx unknown
  • NL NL132017D patent/NL132017C/xx active
  • NL NL279407D patent/NL279407A/xx unknown
• 1961
  • 1961-06-08 GB GB20819/61A patent/GB976970A/en not_active Expired
• 1962
  • 1962-05-25 US US197571A patent/US3173871A/en not_active Expired - Lifetime
  • 1962-06-05 DE DEP1271A patent/DE1271879B/de active Pending

Patent Citations (11)

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