EP0418860A1 - Composition lubrifiante pour moteur à combustion interne - Google Patents

Composition lubrifiante pour moteur à combustion interne Download PDF

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Publication number
EP0418860A1
EP0418860A1 EP90118026A EP90118026A EP0418860A1 EP 0418860 A1 EP0418860 A1 EP 0418860A1 EP 90118026 A EP90118026 A EP 90118026A EP 90118026 A EP90118026 A EP 90118026A EP 0418860 A1 EP0418860 A1 EP 0418860A1
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EP
European Patent Office
Prior art keywords
amount
base oil
hydro
weight
lubricating base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90118026A
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German (de)
English (en)
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EP0418860B1 (fr
Inventor
Jinichi Igarashi
Masakuni Hirata
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Eneos Corp
Original Assignee
Nippon Oil Corp
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Publication of EP0418860A1 publication Critical patent/EP0418860A1/fr
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Publication of EP0418860B1 publication Critical patent/EP0418860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and 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
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
    • C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the 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
    • 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
    • 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
    • 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
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
    • 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
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal 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
    • C10N2010/12—Groups 6 or 16
    • 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
    • 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
    • C10N2040/251—Alcohol-fuelled engines
    • 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
    • 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
    • C10N2040/28—Rotary engines

Definitions

  • This invention relates generally to a lubricating composition for internal combustion engines. More specifically, it relates to a fuel-saving internal combustion engine lubricating composition comprising a lubricating base oil and a molybdenum dithiocarbamate wherein said lubricating base oil contains a hydro-cracked lubricating base oi
  • molybdenum dithiocarbamate are, among the other organic molybdenum compounds, hard to be degraded and resistant to lowering of the fuel-saving effect. Howrever, applicants' experience has not shown that molybdenum dithiocarbamate can maintain persistently the fuel-saving effect throughout the engine operation.
  • low fuel consumption means that any lubricating oil can maintain its fuel-saving properties similar to that of a freshly prepared lubricating oil over a long period of time under severe engine operating conditions.
  • a lubricating composition of the present invention comprising (A) a lubricating base oil consisting substantially of a hydro-cracked lubricating base oil which contains a small amount of aromatic hydrocarbons, and (B) a molybdenum dithiocarbamate.
  • It is an object of the subject invention to provide a fuel-saving internal combustion engine lubricating composition comprising a lubricating base oil and a molybdenum dithiocarbamate as an essential component wherein the lubricating base oil consists substantially of a hydro-­cracked lubricating base oil which contains a small amount of aromatic hyrocarbons.
  • the present invention provides a lubricating composition for internal combustion engines comprising (A) a lubricating base oil in an amount of about 100 parts by weight, and (B) a molybdenum dithiocarbamate in an amount within the range of from about 0.1 to about 3.0 parts by weight, said lubricating base oil consisting substantially of a hydro-cracked lubricating base oil in an amount of more than 70 % by weight (on the basis of the amount of the lubricating base oil) wherein the hydro-cracked lubricating base oil is manufactured by hydro-cracking petroleum fraction and has a kinematic viscosity in the range of from about 2 to about 10 cSt at 100 °C., said hydro-cracked lubricating base oil containing aromatic hydrocarbons in an amount within the range of fromabout 3 to about 15 % by weight, sulfur in an amount of less than 50 ppm by reight, and nitrogen in an amount of less than 5 ppm by eight on the basis of the amount of
  • hydro-cracking process for manufacturing the hydro-cracked lubricating base oil in the present invention may be acceptable.
  • hydro-cracking processes include a process for hydro-cracking a petroleum fraction prepared from paraffinic crude oil by vacuum distillation followed by optional deasphalting.
  • the hydro-cracking conditions are usually as follows: Temperature 350-500 °C., Pressure 60-200 Kg/cm2, LHSV 0.1-­2.0 h ⁇ 1.
  • the catalyst for hydro-cracking is selected from the group consisting of molybdenum, chromium, tungsten, vanadium, platinum, nickel, copper, iron, cobalt, salts thereof, oxides and/or sulfides thereof, as well as mixtures thereof.
  • the catalyst may be used with a suitable carrier such as silica-alumina, active alumina, zeolite, and the like.
  • the hydro-cracked lubricating base oil manufactured by hydro-cracking may be further treated, if necessary, by solvent extraction, solvent dewaxing, catalytic dewaxing, hydro-refining, and the like.
  • the hydro-cracked lubricating base oil produced by above processes has a kinematic viscosity in the range of from about 2 to about 10 cSt at 100 °C., preferably from about 3 to about 7 cSt at 100°C., and contains aromatic hydrocarbons in an amount within the range of from about 3 to about 15 % by weight, preferably from about 3 to 8 % by weight, sulfur in an amount of less than 50 ppm by weight, preferably less than 20 ppm by weight, and nitrogen in an amount of less than 5 ppm by weight, preferably less than 2 ppm by height.
  • a kinematic viscosity of the hydro-cracked lubri­cating base oil of less than about 2 cSt at 100 °C. is not preferabl, because of the poor ability of the composition of the present invention to form an oil film between metal-­metal contact area and of an increase of evaporation loss.
  • a kinematic viscosity of the hydro-cracked lubricating base oil of more than about 10 cSt at 100°C. is not also preferable because of an increase of frictional loss under a condition of hydrodynamic lubrication and of the insufficient display of the fuel-saving effect of molybdenum dithiocarbamate (B).
  • aromatic hydrocarbon contents of less than about 3 % by weight is not preferable because of the insufficient solubility of molybdenum dithiocarbamate (B), aromatic hydrocarbon contents of over about 15 % by weight is not also preferable because of the insufficient oxidation stability of the composition of the present invention.
  • the aromatic hydrocarbon contents gas measured by the procedures as provided by ASTM D2549.
  • sulfur contents in an amount of over about 50 ppm by weight or nitrogen contents in an amount of more than about 5 ppm by weight is not also preferable because of the insufficient oxidation stability of the composition of the present invention.
  • a viscosity-index number of more than about 120 of the hydro-cracked lubricating base oil is preferable in the present invention.
  • the lubricating base oil (A) of the present invention contains a hydro-cracked lubricating base oil mentioned above in an amount of more than about 70 % by reight, preferably more than about 80 weight % by weight, wherein the balance may be any lubricating base oil such as mineral base oil or synthetic base oil such as polybutene, poly­ isobutylene, ⁇ -olefin oligomer, alkylbenzene, alkyl­naphthalene, diester, polyol ester, polyglycol, polyphenyl ether, silicon oil, and the like.
  • lubricating base oil such as mineral base oil or synthetic base oil such as polybutene, poly­ isobutylene, ⁇ -olefin oligomer, alkylbenzene, alkyl­naphthalene, diester, polyol ester, polyglycol, polyphenyl ether, silicon oil, and the like.
  • the contents of the hydro-cracked lubricating base oil in an amount of less than about 70 % by weight is not preferable because of the insufficient oxidation stability of the composition of the present invention.
  • a mixture of any molybdenum compounds selected from the group consisting of molybdenum compounds having different chemical structures may be employed.
  • Japanese Patent Application Publication No .80825/S-51, No.19629/S-52 and No.106824/S-52 describes the compounds of molybdenum dithiocarbamate (B), and the disclosures of which are incorporated by reference.
  • molybdenum dithiocarbamate (B) in an amount within the range of from about 0.1 to about 3.0 parts by weight is preferable, and from about 0.2 to about 2.0 parts by weight on the basis of 100 parts by weight of lubricating base oil (A) is more preferable.
  • (B) in an amount of less than about 0.1 parts by weight is not preferable because such an amount do not provide any adequate fuel-saving effect, and (B) in an amount of over about 3.0 parts by weight is also not preferable because such an amount provides no appreciable and additional benefits.
  • lubricant additives may be added optionally to the lubricating composition of the present invention.
  • additives include zinc dithiophosphates, alkaline-earth metal sulfonates, alkaline-earth metal pheneates, alkaline-earth metal salicylates, alkaline-earth metal phosphonates; and ashless dispersants such as succinimides, succinic esters, benzylamines; viscosity-index improvers and pour point depressants such as polymethyl methacrylate, polyisobutylene, ethylene-propylene copolymer; antioxidants such as phenol type, amine type, copper type; metal deactivators such as benzotriazole; as well as rust preventives; defoaming agents; oiliness agents/friction modifiers and the like.
  • any single or combination of the lubricant additives mentioned above may be employed. Although the kind and the amount of such lubricant additives may be selected suitably on the basis of the grades described in "the API service classification for engine oil". A total amount of the additives employed is usually less than 35 parts by eight, preferably less than 25 parts by weight on the basis of 100 parts by weight of the lubricating base oil (A).
  • the composition for internal combustion engines of the present invention is suitable for use, for example, as four-cycle gasoline engine oil , diesel engine oil for land use, marine diesel engine oil, two-cycle diesel engine oil, and the like.
  • test methods for evaluating properties of lubricating oil are as follows:
  • the oxidation degraded sample oils were prepared by oxidizing new sample oils under the following conditions on the basis of "the method for testing oxidation stability of lubricating oil” as provided by JIS K 25143.1 : Test temperature 150°C Test duration 144 hrs.
  • Table 1 shows the test results.
  • Example 1 Example 2 Com.Exp.1 Com.Exp.2 Hydro-cracked Oil 100 100 - - 100 °C., Viscosity 3.9 cSt, Aromatics 7.9 % by Wt. Sulfur 2 ppm, Nitrogen ⁇ 1 ppm Solvent Refined Oil - - 100 100 100 °C., Viscosity 3.9 cSt, Aromatics 26.0 % by Wt.

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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)
EP90118026A 1989-09-20 1990-09-19 Composition lubrifiante pour moteur à combustion interne Expired - Lifetime EP0418860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1243923A JP2602102B2 (ja) 1989-09-20 1989-09-20 内燃機関用潤滑油組成物
JP243923/89 1989-09-20

Publications (2)

Publication Number Publication Date
EP0418860A1 true EP0418860A1 (fr) 1991-03-27
EP0418860B1 EP0418860B1 (fr) 1993-03-10

Family

ID=17111034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90118026A Expired - Lifetime EP0418860B1 (fr) 1989-09-20 1990-09-19 Composition lubrifiante pour moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP0418860B1 (fr)
JP (1) JP2602102B2 (fr)
DE (1) DE69001057T2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707623A1 (fr) * 1993-05-27 1996-04-24 Exxon Research And Engineering Company Composition d'huile lubrifiante
EP0725130A2 (fr) * 1995-01-31 1996-08-07 Tonen Corporation Composition lubrificante pour moteurs à combustion interne
US5665684A (en) * 1993-05-27 1997-09-09 Exxon Research And Engineering Company Lubricating oil composition
US6607568B2 (en) 1995-10-17 2003-08-19 Exxonmobil Research And Engineering Company Synthetic diesel fuel and process for its production (law3 1 1)
US6669743B2 (en) 1997-02-07 2003-12-30 Exxonmobil Research And Engineering Company Synthetic jet fuel and process for its production (law724)
US6822131B1 (en) 1995-10-17 2004-11-23 Exxonmobil Reasearch And Engineering Company Synthetic diesel fuel and process for its production

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2693698B2 (ja) * 1993-04-22 1997-12-24 株式会社ジャパンエナジー 省燃費型潤滑油
JPH09125081A (ja) * 1995-10-27 1997-05-13 Nippon Oil Co Ltd 内燃機関用潤滑油組成物
JP2000256691A (ja) * 1999-03-08 2000-09-19 Nippon Mitsubishi Oil Corp 内燃機関用潤滑油組成物
JP5173289B2 (ja) * 2007-07-06 2013-04-03 出光興産株式会社 ２サイクルエンジン用潤滑油組成物

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229760A1 (fr) * 1973-05-19 1974-12-13 Toa Nenryo Kogyo Kk
GB1572794A (en) * 1975-12-16 1980-08-06 Shell Int Research Baseoil compositions
EP0281992A2 (fr) * 1987-03-12 1988-09-14 Idemitsu Kosan Company Limited Compositions d'huile lubrifiante et un additif pour huiles lubrifiantes
EP0291006A2 (fr) * 1987-05-14 1988-11-17 Idemitsu Kosan Company Limited Composition lubrifiante résistante aux températures extrêmes
EP0305538A1 (fr) * 1987-03-02 1989-03-08 Idemitsu Kosan Company Limited Composition a base d'huile lubrifiante
EP0341574A1 (fr) * 1988-05-13 1989-11-15 Idemitsu Kosan Company Limited Composition d'huile lubrifiante

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122597A (ja) * 1982-11-30 1984-07-16 Honda Motor Co Ltd 潤滑油組成物
JPH0662983B2 (ja) * 1986-03-17 1994-08-17 株式会社豊田中央研究所 潤滑油組成物
JPH0662988B2 (ja) * 1987-03-12 1994-08-17 出光興産株式会社 内燃機関用潤滑油基油および組成物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229760A1 (fr) * 1973-05-19 1974-12-13 Toa Nenryo Kogyo Kk
GB1572794A (en) * 1975-12-16 1980-08-06 Shell Int Research Baseoil compositions
EP0305538A1 (fr) * 1987-03-02 1989-03-08 Idemitsu Kosan Company Limited Composition a base d'huile lubrifiante
EP0281992A2 (fr) * 1987-03-12 1988-09-14 Idemitsu Kosan Company Limited Compositions d'huile lubrifiante et un additif pour huiles lubrifiantes
EP0291006A2 (fr) * 1987-05-14 1988-11-17 Idemitsu Kosan Company Limited Composition lubrifiante résistante aux températures extrêmes
EP0341574A1 (fr) * 1988-05-13 1989-11-15 Idemitsu Kosan Company Limited Composition d'huile lubrifiante

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707623A1 (fr) * 1993-05-27 1996-04-24 Exxon Research And Engineering Company Composition d'huile lubrifiante
EP0707623A4 (fr) * 1993-05-27 1996-09-18 Exxon Research Engineering Co Composition d'huile lubrifiante
US5665684A (en) * 1993-05-27 1997-09-09 Exxon Research And Engineering Company Lubricating oil composition
EP0725130A2 (fr) * 1995-01-31 1996-08-07 Tonen Corporation Composition lubrificante pour moteurs à combustion interne
EP0725130A3 (fr) * 1995-01-31 1996-12-11 Tonen Corp Composition lubrificante pour moteurs à combustion interne
US5688748A (en) * 1995-01-31 1997-11-18 Tonen Corporation Lubricating oil composition for internal combustion engines
US6607568B2 (en) 1995-10-17 2003-08-19 Exxonmobil Research And Engineering Company Synthetic diesel fuel and process for its production (law3 1 1)
US6822131B1 (en) 1995-10-17 2004-11-23 Exxonmobil Reasearch And Engineering Company Synthetic diesel fuel and process for its production
US6669743B2 (en) 1997-02-07 2003-12-30 Exxonmobil Research And Engineering Company Synthetic jet fuel and process for its production (law724)

Also Published As

Publication number Publication date
JPH03106995A (ja) 1991-05-07
DE69001057T2 (de) 1993-06-17
EP0418860B1 (fr) 1993-03-10
DE69001057D1 (de) 1993-04-15
JP2602102B2 (ja) 1997-04-23

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