EP0240813B1 - Composition d'huile lubrifiante - Google Patents

Composition d'huile lubrifiante Download PDF

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Publication number
EP0240813B1
EP0240813B1 EP87104192A EP87104192A EP0240813B1 EP 0240813 B1 EP0240813 B1 EP 0240813B1 EP 87104192 A EP87104192 A EP 87104192A EP 87104192 A EP87104192 A EP 87104192A EP 0240813 B1 EP0240813 B1 EP 0240813B1
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EP
European Patent Office
Prior art keywords
oil
poly
olefin
lubricating oil
weight
Prior art date
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Expired - Lifetime
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EP87104192A
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German (de)
English (en)
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EP0240813A2 (fr
EP0240813A3 (en
Inventor
Noboru Watanabe
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Idemitsu Kosan Co Ltd
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Idemitsu Kosan Co Ltd
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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
    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
    • 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
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02—Petroleum fractions
    • 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
    • C10M107/10—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation containing aliphatic monomer having more than 4 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
    • 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
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • 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
    • C10M2203/102—Aliphatic fractions
    • 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
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • 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
    • C10M2203/104—Aromatic fractions
    • C10M2203/1045—Aromatic fractions used as base material
    • 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
    • C10M2203/106—Naphthenic fractions
    • C10M2203/1065—Naphthenic fractions used as base material
    • 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
    • C10M2203/1085—Residual fractions, e.g. bright stocks used as base material
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • 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
    • 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
    • C10N2040/02—Bearings
    • 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
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • 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
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
    • 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
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
    • 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
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
    • 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
    • C10N2040/06—Instruments or other precision apparatus, e.g. damping fluids
    • 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
    • C10N2040/30—Refrigerators lubricants or compressors lubricants
    • 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
    • C10N2040/32—Wires, ropes or cables lubricants
    • 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
    • C10N2040/34—Lubricating-sealants
    • 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
    • C10N2040/36—Release agents or mold release agents
    • 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
    • C10N2040/38—Conveyors or chain belts
    • 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
    • C10N2040/40—Generators or electric motors in oil or gas winning field
    • 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
    • C10N2040/42—Flashing oils or marking oils
    • 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
    • C10N2040/44—Super vacuum or supercritical use
    • 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
    • C10N2040/50—Medical uses

Definitions

  • JP-A-59122595 discloses an engine oil comprising an poly- ⁇ -olefin as base oil, a mineral or synthetic oil as second component and a viscosity index improving agent.
  • the present invention has an object to provide a novel poly- ⁇ -olefin containing lubricating oil composition of high economical feasibility having excellent cleanness at high temperatures and friction characteristics with wet clutches without being affected in respect of the stability against oxidation and performance at extremely low temperatures.
  • the extensive investigations undertaken with this object have unexpectedly led to a discovery that the object can be fully achieved by blending a poly- ⁇ -olefin with a mineral oil only when a poly- ⁇ -olefin having specific properties is combined with a mineral oil having specific properties in a specific proportion.
  • the inventive lubricating oil composition is a mixture of a specific poly- ⁇ -olefin as the component (A) and a specific mineral oil as the component (B) in a specific weight proportion.
  • the poly- ⁇ -olefin as the component (A) is a type of synthetic lubricating oil also called an ⁇ -olefin oligomer and represented by the general formula CH3-CHR-(-CH2-CHR-) m -CH2-CH2R, (I) in which R is an alkyl group having 4 to 12 carbon atoms and the subscript m is zero or a positive integer not exceeding 30.
  • the poly- ⁇ -olefin should have a kinematic viscosity in the range from 1.5 to 150 x mm2/s (centistokes) or, preferably, from 2 to 50 x mm2/s (centistokes) at 100 °C.
  • the poly- ⁇ -olefin should have a relatively low degree of polymerization and particular examples of preferable poly- ⁇ -olefins include dimers to decamers of 1-octene, 1-decene or 1-dodecene, of which dimer, trimer and tetramer of 1-decene are more preferable.
  • Such a poly- ⁇ -olefin can be prepared by a known method including the steps of polymerization, decomposition of the catalyst, distillation and hydrogenation.
  • a means to control the degree of polymerization of the poly- ⁇ -olefin is to control the staying time of the reactants in the reaction vessel in the step of polymerization.
  • the mineral oil as the component (B) to be combined with the above described poly- ⁇ -olefin as the component (A) should have a kinematic viscosity in the range from 2 to 50 x mm2/s (centistokes) or, preferably, from 5 to 35 x mm2/s (centistokes) at 100 °C and a pour point of -35 °C or below or, preferably, -40 °C or below.
  • the content of aromatic hydrocarbons in the mineral oil, referred to as % C A hereinbelow, should be 20% or lower or, preferably, 10% or lower.
  • the content of sulfur therein should be 50 ppm or lower or, preferably, 5 ppm or lower.
  • Mineral oils satisfying such requirements can be obtained from a paraffinic crude oil or an intermediate base crude oil by distilling the same to give a distillate having a boiling point of 250 to 450°C under normal pressure which is then refined by a conventional method followed by a deep dewaxing treatment.
  • the distillate here implied is obtained by subjecting a crude oil to distillation under normal pressure or by subjecting a residue oil from distillation under normal pressure to distillation under reduced pressure.
  • the distillate can be refined by one of the following five methods including: (1) hydrogenation treatment of the distillate, optionally, followed by alkali distillation or scrubbing with sulfuric acid; (2) solvent treatment of the distillate, optionally, followed by alkali distillation or scrubbing with sulfuric acid; (3) hydrogenation treament of the distillate in two steps; (4) hydrogenation treatment of the distillate in three steps; and (5) hydrogenation treatment of the distillate in two steps followed by alkali distillation or scrubbing with sulfuric acid.
  • Following description is exemplary of a process for the treatment of the distillate.
  • a paraffinic crude oil or an intermediate base crude oil is processed according to a conventional procedure to give a base material for lubricating oil which is then subjected to an extensive hydrogenation treatment.
  • an extensive hydrogenation treatment By this treatment, certain constituents in the base material undesirable for the fraction of lubricating oils, such as the aromatic matter, can be removed or converted into effective constituents along with removal of the sulfurous and nitrogenous matters almost to completeness.
  • the base material after the hydrogenation treatment is then subjected to fractional distillation under reduced pressure so as to be imparted with a necessary viscosity. Thereafter, the oil is subjected to a dewaxing treatment using a solvent according to a known procedure to such an extent that the oil should have a pour point, which conventional paraffin-based oils may have, in the range, for example, from -15 °C to -10 °C.
  • this dewaxing treatment is followed by a further treatment of hydrogenation to such an extent that the aromatic compounds contained in the base oil are mostly hydrogenated and converted into saturated compounds to impart the base oil with increased thermal and chemical stability.
  • the thus refined base oil is still not suitable as a component of the inventive lubricating oil composition due to the high pour point. Accordingly, the above described refining treatment should be followed by a deep dewaxing treatment.
  • This dewaxing treatment can be performed either by the method of solvent dewaxing under extensive conditions or by the method of catalytic hydrogenation dewaxing using a zeolite as the catalyst, in which the paraffin compounds or, mainly, normal paraffins adsorbed in the pores of the catalyst are preferentially decomposed under the atmosphere of hydrogen so that the base oil is freed from the constituents responsible for the formation of waxy materials.
  • the process parameters usually include a reaction temperature in the range from 200 to 480 °C or, preferably, from 250 to 480 °C, pressure of hydrogen in the range from 5 to 300 x 1.0197 ⁇ 105 Pa (kg/cm2) or, preferably, from 30 to 250 x 1.0197 ⁇ 105 Pa (kg/cm2) and volume of the hydrogen gas introduced in the range from 30 to 3000 Nm3 or, preferably, from 100 to 2000 Nm3 per kiloliter of the feed of the distillate.
  • the catalyst suitable for this catalytic hydrogenation treatment can be prepared by using alumina, silica, silica ⁇ alumina, zeolite, active carbon, bauxite and the like as a carrier on which a metallic element belonging, for example, to the VIth or VIIIth Group of the Periodic Table or, preferably, cobalt, nickel, molybdenum, tungsten and the like is supported as the catalytically effective ingredient according to a known method for catalyst preparation.
  • the catalyst should preferably be subjected to a preliminary sulfurization treatment prior to use.
  • the distillate oil after the hydrogenation treatment is subjected to one or more of different post-treatments.
  • the post-treatment includes the second-step or, further, third-step hydrogenation treatment
  • the process parameters in these subsequent hydrogenation treatments can be selected within the above described ranges and the conditions in each of the first-step to third-step hydrogenation treatments can be the same as or different from those in the other steps. It is usually preferable, however, that the hydrogenation in the second step and in the third step should be performed more extensively than in the first step and in the second step, respectively.
  • the scrubbing of the oil with sulfuric acid is a treatment conventionally performed as a finishing step of various petroleum products and undertaken here with an object to improve the properties of the distillate oil by removing aromatic hydrocarbons or, in particular, polycyclic aromatic hydrocarbons, olefins, sulfur compounds and so on therefrom.
  • the distillate oil after the hydrogenation treatment is contacted with concentrated sulfuric acid in an amount of 0.5 to 5% by weight at a temperature in the range from room temperature to 60°C followed by neutralization with an alkali such as sodium hydroxide.
  • the distillate oil is treated in one of the combinations of the above described unit procedures while the procedures of (1), (3) and (4) are particularly preferable.
  • the lubricating oil composition of the present invention is composed of the above described poly- ⁇ -olefin and the mineral oil.
  • the composition should be composed of from 15 to 85% by weight or, preferably, from 20 to 80% by weight of the former component and from 85 to 15% by weight or, preferably, from 80 to 20% by weight of the latter component.
  • the above given range is critical in order that the inventive composition may have excellent cleanness at high temperatures and friction characteristics with a wet clutch.
  • additives to be added to the inventive composition include detergent-dispersants of the types of sulfonates, phenates, phosphonates, imides and amides, molybdenum dithiophosphate, molybdenum dithiocarbamate, phosphorus-containing extreme-pressure additives, sulfur-based extreme-pressure additives, friction modifiers and other extreme-pressure additives and oiliness improvers, corrosion inhibitors, anti-foam agents, rust inhibitors and so on each in a limited amount.
  • Each of the base oils (kinematic viscosity of 5 x mm2/s (centistokes) at 100°C) was modified by the admixture of 7% by weight of a copolymer of ethylene and propylene having an average molecular weight of about 65,000 so as to be equivalent to an oil of the SAE viscosity grade 10W/30 and further admixed with 8% by weight of a commercial product of an additive package for engine oils containing calcium sulfonate as the principal ingredient.
  • the thus prepared seven lubricating oil compositions are referred to as the Compositions 1 to 7 hereinbelow.
  • the base oil was prepared by uniformly blending the poly- ⁇ -olefin A2, which was also a mixture of the dimer to tetramer of 1-decene, and the mineral oil B5 characterized by the property parameters indicated in Table 1 in a 50:50 by weight proportion.
  • the base oil was admixed with 15% by weight of the same ethylene-propylene copolymer as used in the formulation of the Compositions 1 to 7.
  • the thus prepared lubricating oil composition is referred to as the Composition 8 hereinbelow.
  • the sample oil was subjected to the panel-coking test according to the procedure specified in Federal Test Method Standard No. 791a, Method 3462T with the conditions of the panel temperature of 320°C, oil temperature of 100°C and testing time of 3 hours and the high-temperature cleanness of the oil was evaluated by the weight increase of the panel in mg after the test.
  • compositions 2, 6 and 8 prepared in the above described manner were each subjected to the test of stability against oxidation according to the procedure specified in JIS K 2514 to give the results of the increase in the overall acid value shown in Table 4 below in mg KOH/g together with the viscosity ratio at 100°C.
  • compositions 9 to 11 prepared in the above described manner were each subjected to the SAE No. 2 friction test under the conditions indicated below to give the results shown in Table 6 by the values of ⁇ 0/ ⁇ 1200, in which ⁇ 1200 is the coefficient of dynamic friction at a velocity of rotation of 1200 rpm and ⁇ 0 is the coefficient of static friction in a static condition.

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  • 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)

Claims (2)

  1. Composition d'huile lubrifiante qui comprend :
    (A) 15 à 85 parties en poids d'une poly-α-oléfine ayant une viscosité cinématique comprise dans l'intervalle de 1,5 à 150 mm²/s (centisiokes) à 100°C ; et
    (B) 85 à 15 parties en poids d'une huile minérale ayant une viscosité cinématique comprise dans l'intervalle de 2 à 50 mm²/s (contistokes) à 100°C et un point d'écoulement de -35°C ou moins,
    dans laquelle la poly-α-oléfine est un composé représenté par la formule générale :



            CH₃-CHR-(-CH₂-CHR-)m-CH₂-CH₂R,



    où R est un groupe alkyle ayant 4 à 12 atomes de carbone. et m est zéro ou un nombre entier positif ne dépassant pas 30, et l'huile minérale contient 20 % en poids ou moins d'hydrocarbures aromatiques et 50 ppm en poids ou moins de soufre.
  2. Composition d'huile lubrifiante selon la revendication 1, dans laquelle la poly-α-oléfine est un dimère, un trimère ou un tétramère de 1-décène, on un mèlange d'entre eux.
EP87104192A 1986-03-31 1987-03-21 Composition d'huile lubrifiante Expired - Lifetime EP0240813B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP71366/86 1986-03-31
JP61071366A JPH0737623B2 (ja) 1986-03-31 1986-03-31 潤滑油組成物

Publications (3)

Publication Number Publication Date
EP0240813A2 EP0240813A2 (fr) 1987-10-14
EP0240813A3 EP0240813A3 (en) 1989-12-13
EP0240813B1 true EP0240813B1 (fr) 1993-06-23

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Application Number Title Priority Date Filing Date
EP87104192A Expired - Lifetime EP0240813B1 (fr) 1986-03-31 1987-03-21 Composition d'huile lubrifiante

Country Status (4)

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EP (1) EP0240813B1 (fr)
JP (1) JPH0737623B2 (fr)
CA (1) CA1277309C (fr)
DE (1) DE3786289T2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912272A (en) * 1988-06-23 1990-03-27 Mobil Oil Corporation Lubricant blends having high viscosity indices
DE69119823T2 (de) * 1990-04-23 1996-10-02 Ethyl Petroleum Additives Inc Automatische Kraftübertragungsflüssigkeiten und Additive dafür
FR2687165A1 (fr) 1992-02-07 1993-08-13 Exxon Lubrifiant pour automobile.
CA2095972A1 (fr) * 1992-05-22 1993-11-23 Rolfe J. Hartley Lubrifiants dotes de prorietes ameliorees a basse temperature
US5866519A (en) * 1995-07-17 1999-02-02 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US5641732A (en) * 1995-07-17 1997-06-24 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US5641733A (en) * 1995-07-17 1997-06-24 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US5646099A (en) * 1995-07-17 1997-07-08 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
EP0858497B1 (fr) * 1995-11-03 2001-07-18 Infineum USA L.P. Huile pour transmission automatique a pouvoir de transmission de puissance ameliore
SG64414A1 (en) * 1996-01-16 1999-04-27 Lubrizol Corp Lubricating compositions
JP3319499B2 (ja) * 1996-08-06 2002-09-03 出光興産株式会社 冷凍機用潤滑油組成物及び該組成物を用いた潤滑方法
JPH10316987A (ja) * 1997-05-16 1998-12-02 Cosmo Sogo Kenkyusho:Kk ギヤ油組成物
JP3261340B2 (ja) * 1997-05-30 2002-02-25 東燃ゼネラル石油株式会社 潤滑油組成物
GB9716283D0 (en) * 1997-08-01 1997-10-08 Exxon Chemical Patents Inc Lubricating oil compositions
JP3921178B2 (ja) * 2003-02-21 2007-05-30 新日本石油株式会社 変速機用潤滑油組成物
KR101079949B1 (ko) 2003-02-21 2011-11-04 제이엑스 닛코닛세키에너지주식회사 변속기용 윤활유 조성물
JP3949069B2 (ja) * 2003-02-21 2007-07-25 新日本石油株式会社 変速機用潤滑油組成物
JP5324748B2 (ja) 2007-02-26 2013-10-23 出光興産株式会社 潤滑油組成物
WO2011125879A1 (fr) * 2010-04-02 2011-10-13 出光興産株式会社 Composition lubrifiante pour un moteur à combustion interne
JP6151914B2 (ja) * 2010-04-02 2017-06-21 出光興産株式会社 内燃機関用潤滑油組成物
US9023190B2 (en) 2010-04-02 2015-05-05 Idemitsu Kosan Co., Ltd. Lubricant composition for an internal combustion engine and method for lubricating an internal combustion engine
FR3037969B1 (fr) * 2015-06-29 2017-08-11 Total Marketing Services Polyolefines lubrifiantes de basse viscosite

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JPS4827884A (fr) * 1971-08-06 1973-04-12
JPS5124522B2 (fr) * 1971-12-28 1976-07-24
JPS5624493A (en) * 1979-08-06 1981-03-09 Nippon Oil Co Ltd Central system fluid composition for automobile
JPS5876497A (ja) * 1981-11-02 1983-05-09 Idemitsu Kosan Co Ltd 安定性にすぐれた冷凍機油
JPS59113095A (ja) * 1982-12-17 1984-06-29 Hitachi Ltd 冷凍機油組成物
JPS59122595A (ja) * 1982-12-28 1984-07-16 Nippon Oil Co Ltd タ−ボチヤ−ジヤ付エンジン用マルチグレ−ドエンジン油組成物
JPS614109A (ja) * 1984-06-18 1986-01-10 出光興産株式会社 電気絶縁油

Also Published As

Publication number Publication date
EP0240813A2 (fr) 1987-10-14
JPS62240385A (ja) 1987-10-21
CA1277309C (fr) 1990-12-04
DE3786289T2 (de) 1993-11-18
EP0240813A3 (en) 1989-12-13
DE3786289D1 (de) 1993-07-29
JPH0737623B2 (ja) 1995-04-26

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