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
  • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
  • C10M135/02—Sulfurised compounds
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic 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
  • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
  • C10M159/12—Reaction products
  • C10M159/123—Reaction products obtained by phosphorus or phosphorus-containing compounds, e.g. P x S x with organic compounds
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/16—Hydrocarbons
  • C10L1/1616—Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
  • C10L1/2431—Organic compounds containing sulfur, selenium and/or tellurium sulfur bond to oxygen, e.g. sulfones, sulfoxides
  • C10L1/2437—Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
  • C10L1/2493—Organic compounds containing sulfur, selenium and/or tellurium compounds of uncertain formula; reactions of organic compounds (hydrocarbons, acids, esters) with sulfur or sulfur containing compounds
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
  • C10L1/00—Liquid carbonaceous fuels
  • C10L1/10—Liquid carbonaceous fuels containing additives
  • C10L1/14—Organic compounds
  • C10L1/26—Organic compounds containing phosphorus
  • C10L1/2691—Compounds of uncertain formula; reaction of organic compounds (hydrocarbons acids, esters) with Px Sy, Px Sy Halz or sulfur and phosphorus containing 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
  • C10M2207/02—Hydroxy compounds
  • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
  • C10M2207/027—Neutral salts 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
  • 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
• • 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
  • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
  • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
• • 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
  • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
  • C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
• • 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
  • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
  • C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
• • 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
  • 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
  • C10M2223/045—Metal containing thio 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
  • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2223/12—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions obtained by phosphorisation of organic compounds, e.g. with PxSy, PxSyHal or PxOy
• • 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
  • C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2225/04—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions obtained by phosphorisation of macromolecualr compounds not containing phosphorus in the monomers
• • 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
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/25—Internal-combustion engines
  • C10N2040/255—Gasoline engines
  • C10N2040/26—Two-strokes or two-cycle engines

Definitions

• the present invention concerns improved lubricating oils for gasoline engines of the type that are lubricated by mixing the oil with the fuel that is fed to the engine. Ordinarily this lubricating procedure is employed for gasoline engines that have a two-stroke cycle. A representative engine of this type is the well-known outboard motor for powering various types of boats. The twostroke-cycle engines are also employed for powering lawn mowers and certain small automobiles such as the Saab.
• the lubricating oil is mixed with the fuel fed to the engine in a ratio of 1 volume of lubricant to from about 15 to about 40 volumes of fuel.
• the mixture first enters the crankcase where the mixture of lubricant and unvaporized fuel contacts and lubricates the various moving surfaces including the bearings, pistons, piston rings, and cylinders. All of the lubricant that does not deposit on the surfaces in the lower part of the engine passes into the combustion chamber where it is burned along with the fuel.
• the combination of additives employed in the present invention for improving the lubricant for a two-stroke internal combustion engine comprises from about 0.2 to about 3 weight percent, preferably about 1 to about 2 weight percent of an alkaline earth metal organic sulfonate and a separate sulfur-containing organic compound in sufiicient quantity to supply in the range of from 0.01 to 2.0 weight percent of additional sulfur.
• sulfur-containing compounds are selected from the group consisting of sulfurized fatty oils, sulfurized unsaturated hydrocarbons such as olefins, olefin polymers and terpenes, and phosphosulfurized hydrocarbons.
• compositions results in many instances when there is also added from 0.1 to 5 weight percent, or preferably about 0.5 to 2 weight percent, of a zinc salt of a dialkyl dithiophosphoric acid.
• An animal oil or a vegetable oil such as sperm oil, lard oil, cottonseed oil, peanut oil, or the like; or a terpene or an olefin or olefin polymer; may be sulfurized by adding sulfur thereto, as for example, 5 to 40 percent sulfur, followed by heating at a temperature in the range of say .200 to 400 F. for 1 to 4 hours.
• furized unsaturated hydrocarbons such as terpenes or polyolefins
• furized unsaturated hydrocarbons can be prepared by reacting the hydrocarbon with from 5 to 30 weight percent of a sulfide of phosphorus such as P 8 under anhydrous conditions at temperatures of from about 150 to about 600 F. for from /2 to 15 hours.
• a specific example is the reaction product of a polyisobutylene of an average Staudinger molecular weight of about 830 with 15 parts by weight of P 5 for about 10 hours at about 450 F.
• the polyolefins may range in molecular weight from about 500 to about 200,000 Staudinger and may contain from 2 to 6 carbon atoms per olefin monomer, thus including polymers of ethylene, butylene, propylene or isobutylene, for example.
• the terpenes may include pinene, other turpentine hydrocarbons, citrene, and the like.
• the metal sulfonates employed in this invention are the oil-soluble alkaline earth metal salts of high molecular Weight sulfonic acids obtained by the sulfonation of either natural or synthetic hydrocarbons.
• Natural hydrocarbon sulfonic acids are usually petroleum sulfonic acids obtained by treating lubricating oil base stocks or related petroleum fractions with concentrated or fuming sulfuric acid by well established procedures. These sulfonic acids usually have molecular weights in the range of about 300 to 700.
• Synthetic hydrocarbon sulfonic acids can be produced by sulfonating alkylated aromatic hydrocarbons, as for example the hydrocarbons obtained by alkylating benzene, toluene or xylene with olefins or olefin polymers.
• sulfonates suitable for use in the present invention include a barium petroleum sulfonate of about 950 molecular weight, calcium C alkyl benzene sulfonate (from benzene alkylated with di-isobutylene), magnesium petroleum sulfonate of about 800 molecular weight, barium C alkyl benzene sulfonate (from ben zene alkylated with tetraisobutylene), calcium petroleum sulfonate of about 880 molecular weight, and calcium C alkyl benzene sulfonate derived from benzene alkyl-;
• dialkyl dithiophosphoric acids The preparation of dialkyl dithiophosphoric acids is' well known in the art and simply involves reacting about 4 moles cf an aliphatic alcohol or a mixture of alcohols with 1 mole of phosphorus pentasulfi-de at temperatures in the range of from about to about 250 F. for from 1 to 6 hours.
• dialkyl dithiophosphoric acids prepared from alcohols having in the range of from about 3 to about 16 carbon atoms are contemplated.
• dialkyl dithiophosphoric acids used in this invention include not only those made from a simple aliphatic alcohol such :as .isopropyl, normal butyl, normal decyl, and so forth, but also from mixed aliphatic alcohols such as the C or C :oxo alcohols obtained by reaction of olefins with carbon monoxide and hydrogen and subsequent hydrogenation of the resultant aldehydes.
• dithiophosphoric acids obtained from such mixtures as isopropyl alcohol mixed with unethyliso-butyl carbinol, a combination of primary amyl alcohol and isobuta-nol, a combination of lIIllXCd amyl alcohols and technical lauryl alcohol, a mixture of isopropyl alcohol and C ox o alcohol, and the like.
• Mixed acids obtained by reaction of individual alcohols separately with P 8 may also be employed in the preparation of the metal salts.
• the lubricating oil components of the compositions of this inve-ntion should comprise clean burning base stocks having viseosities at 210 F. in the range of about 45 to 85 SSU.
• the base st-ock should be a naphthenic distillate (.eg. a C-oastal distillate) that has been extracted to a viscosity index of at least 60 although the viscosity index may be higher, e.g. 80 to 100* or more.
• the base stock should have a viscosity at 210 F. of from about 58 t-o about 75 SSU.
• composition from 0.1 to 1 weight percent of an antioxidant and/or a corrosion inhibitor such as phenyl alpha naphthylamine, 2,6- i-tert. butyl p-cresol, 4,4-methylene bis(2,6-di-tert. butyl phenol), dimerized linoleic aci-d or the like.
• a corrosion inhibitor such as phenyl alpha naphthylamine, 2,6- i-tert. butyl p-cresol, 4,4-methylene bis(2,6-di-tert. butyl phenol), dimerized linoleic aci-d or the like.
• Particularly useful corrosion inhibitors are ethoxylated fatty acids or fiatty alcohols of from 12 to 18 carbon atoms containing from 2 to 7 ethoxy groups per chain, as for example ethoxylate-d lauryl alcohol, ethoxylated stearic acid, ethoxylated stearyl alcohol, ethoxylated tall-ow fatty acids, and the like.
• the fuel component of the mixture of lubricant and fuel may be a conventional gasoline having in the range of from 1 to about 3 ml. of tetraethyl lead per gallon.
• Example 1 Several c-ompositions were prepared using as the base oil a naphthenic lubricating oil of SAE 30 viscosity compounded with a calcium petroleum sulfonate detergent additive and various combinations of a corrosion inhibitor, sulfurized spenm oil, P S -treated terpenes, and zinc dialkyl dithiophosphate. The later was prepared from a mixture of 35 percent of mixed primary amyl alcohols and 65 percent of isobutyl alcohol reacted with P 8 and neutralized with zinc oxide.
• the calcium petroleum sulfonate detergent was a c-oncentrate consisting of 70 volume percent of mineral lubricating oil diluent and 30 volume percent of calcium salts of petroleum sulfonic acids of about 400 average molecular weight. Thus when using 6 weight percent of the concentrate, roughly 2 Weight percent of actual sulfonate was incorporated int-o the composition.
• the corrosion inhibitor was a material known as 'Emulso gen A, which was an ethoxylated fatty acid product of 600 maximum molecular weihgt containing 4 to 5 ethoxy groups per molecule.
• the sulfurized terpene contained 40 weight percent of sulfur and the sulfurized sperm oil had a sulfur content of 12 Weight percent.
• the phosphosulfurized terpene was a product of The Lubrizol Corporation and contained 13 weight percent sulfiur.
• Each of the compositions was mixed with a regular grade of gasoline in the proportion of 1 part of compounded oil and 100 parts of gasoline.
• the gasoline contained about 1.12 ml. of tetraethyl lead per gallon of gasoline (0.3 gram lead per liter).
• OIL-TO-FUEL RATIO Composition Ingredients, wt. percent:
• the overall merit rating reported in Table I was o tained by observing piston cleanliness, coke formation in the ring zone, deposits on the piston head, and exhaust port plugging, assessing each part quantitatively on a merit rating system in which a numerical value of 10 represents a perfectly clean part and zero represents a part covered with the maximum possible quantity of deposits, and averaging the several merit ratings to give an overall merit rating.
• Example 2 Other of the compositions described in Example 1 were subjected to 60-hour tests in the Saab three-cylinder, 900 cc. two-stroke engine, having a rating of 38 H.P. at 4,250 r.p.m.
• the test conditions involved an initial I O-minute idle at 1,000 r.p.m., "followed by generally alternating 60 and 10-minute periods at full and partial loads at speeds ranging for the most part fr-om 3,000 to 5,500 r.p.m.
• the same test conditions were used in each test.
• the composit-ions tested and the results obtained are given in Table II.
• the same system of rating was used as in the test of Example 1.
• the test results compared favorably with those obtained when using a commercially available Z-strokeengine oil at an oil-to-fuel ratio of 1 to 33 in accordance with the recommendation of the engine manufacturer (rings free; exhaust port incrustation 5 overall merit rating 5.1).
• Example 3 Composition E iot Example 2 was tested in a 40 horsepower Johnson outboard motor for 50 hours in a cyclic test involving 55-minute periods under full load at- 4,500i200 rpm. and S-minute periods of idle at 600-- 800 r.p.m. An overall merit rating of 4.7 was obtained as compared with a rating of 5.0 with a conventional 2-cycle oil at an oil-to-fuel ratio of 1 to 25.
• a combined lubricant and fuel composition for the lubrication of a two-stroke-cycle gasoline engine which comprises a gasoline to which have been added, per 100 parts of gasoline: Y
• composition as defined by claim 1 wherein said alkaline earth metal salt is a salt of :a petroleum sulfionic acid of molecular weight within the range of 300 to 700.
• composition as defined by claim 1 wherein said suliur cont-aining compound comprises sulfurized sperm oil.
• composition as defined by claim 1 wherein said sul'finrcontaining compound comprises :a sulfurized terpene.
• composition as defined by claim 1 wherein said sulfiur-containing compound comprises a phosphosulfurized polymer obtained by reaction of polyisobutylene With P285.
• Composit on as defined by claim 1 including from 0.1 to 1 weight percent of a corrosion inhibitor selected from the class consisting of ethoxylated fatty acids and ethoxylated fatty alcohols of 12 to 18 ca-nbo-n atoms.
• a corrosion inhibitor selected from the class consisting of ethoxylated fatty acids and ethoxylated fatty alcohols of 12 to 18 ca-nbo-n atoms.
• Composition as defined by claim 1 which additionally contains, per parts of fuel, from about 0.0005 to about 0.05 part of a zinc dialkyl dithiophosphate derived from aliphatic alcohols having in the range of from 3 to 16 carbon atoms.
• composition as defined by claim 8 wherein said zinc dialkyl dithiophosphate is derived from a mixture of C and C alcohols.

Landscapes

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

Applications Claiming Priority (1)

Publications (1)

Family

ID=7071919

Family Applications (1)

Country Status (5)

Cited By (5)

Citations (9)

Family Cites Families (3)

• 1963
  • 1963-12-06 DE DEE25971A patent/DE1259636B/de active Pending
• 1964
  • 1964-12-03 NL NL6414047A patent/NL6414047A/xx unknown
  • 1964-12-04 BE BE656663D patent/BE656663A/xx unknown
  • 1964-12-04 GB GB49492/64A patent/GB1047098A/en not_active Expired
  • 1964-12-07 US US416590A patent/US3290130A/en not_active Expired - Lifetime

Patent Citations (9)

Also Published As

Similar Documents