EP0552554B1 - Compositions d'huile lubrifiante - Google Patents

Compositions d'huile lubrifiante Download PDF

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Publication number
EP0552554B1
EP0552554B1 EP92311497A EP92311497A EP0552554B1 EP 0552554 B1 EP0552554 B1 EP 0552554B1 EP 92311497 A EP92311497 A EP 92311497A EP 92311497 A EP92311497 A EP 92311497A EP 0552554 B1 EP0552554 B1 EP 0552554B1
Authority
EP
European Patent Office
Prior art keywords
lubricating oil
composition according
oil composition
blend
hydrocarbon
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.)
Expired - Lifetime
Application number
EP92311497A
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German (de)
English (en)
Other versions
EP0552554A1 (fr
Inventor
Grenville Holt
Bruce Lawrence John Murray
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BP PLC
Original Assignee
BP PLC
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Publication date
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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
    • C10M111/02—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 non-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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/02—Well-defined hydrocarbons
    • C10M105/04—Well-defined hydrocarbons aliphatic
    • 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
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/34—Esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32—Esters
    • C10M105/36—Esters of polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
    • C—CHEMISTRY; METALLURGY
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04—Well-defined cycloaliphatic compounds
    • C10M2203/045—Well-defined cycloaliphatic compounds used as base material
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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    • 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
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/104—Aromatic fractions
    • C10M2203/1045—Aromatic fractions used as base material
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/106—Naphthenic fractions
    • C10M2203/1065—Naphthenic fractions used as base material
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    • 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
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    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
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    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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    • C10M2207/2815—Esters of (cyclo)aliphatic monocarboxylic acids used as base material
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    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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    • C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
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    • C10M2207/284—Esters of aromatic monocarboxylic acids
    • C10M2207/2845—Esters of aromatic monocarboxylic acids used as base material
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    • C10M2207/286—Esters of polymerised unsaturated acids
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    • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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    • 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
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    • C10M2209/084—Acrylate; Methacrylate
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    • 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
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    • C10M2215/26—Amines
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    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
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    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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    • 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
    • C10M2219/046—Overbasedsulfonic acid salts
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    • 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
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    • 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

Definitions

  • the present invention relates to environmentally friendly lubricating oil compositions for automotive engines.
  • Lubricating oil compositions for use in automotive engines are well known.
  • EP-A-0 259 809 discloses, a lubricating oil composition comprising 97 to 60% by weight of mineral oil and 3 to 40% by weight of polyester, said mineral oil having a dynamic viscosity at 100°C of 2 to 50 centistokes, a pour point ( as determined by JIS K-2269) of -5 to -30°C, a viscosity index (as determined by JIS K-2283) of not less than 80 and % C A of not more than 3.
  • This lubricating oil composition is suitable for lubrication of parts including a wet brake and a wet clutch, such as automatic transmissions and tractors.
  • compositions usually contain a base fluid which may comprise mineral oils, hydrocarbon oils and/or synthetic fluids and conventional additives such as viscosity index (hereafter "VI”) improvers, anti-oxidants, corrosion inhibitors, dispersants, anti-wear additives and sludge control agents.
  • VI viscosity index
  • automotive engine oil development has seen a steady trend towards lower viscosity multigrades, principally to improve fuel efficiency.
  • the predominant viscosity grade has moved from a typically 20W/50 oil to a 10W/40 or a 5W/40 oil.
  • the manufacturers of automotive engine equipment have also tightened the specifications for such oils in terms of oil consumption, bearing protection and shear stability.
  • compositions usually contain 80%w.w or more of a hydrocarbon or mineral oil and upto 20%w/w of an aliphatic carboxylic acid ester in the base fluid.
  • Such compositions whilst being very efficient and being to some extent biodegradable, still leave room for improvement.
  • base oil blends can be formulated which not only improve the biodegradability thereof but achieve the same without loss of performance at the same time exhibiting relatively lower emissions, lower fuel consumption and lower oil consumption.
  • the present invention is an automotive engine lubricating oil composition which has a major proportion of a base fluid which fluid comprises a blend of:
  • the base fluid comprises a blend of an ester and a hydrocarbon oil.
  • the ester component (a) is derivable by the reaction of an aliphatic mono-, di-and/or poly-carboxylic acid with, isotridecyl alcohol under esterification conditions.
  • esters include the isotridecyl esters of octane-1,8-dioic acid, 2-ethylhexane-1,6-dioic acid and dodecane-1,12-dioic acid.
  • the hydrocarbon oil component (b) in the blend suitably is a hydrocracked wax distillate. More specifically, such hydrocarbon oils can contain upto 99.5%w/w, preferably upto 97%w/w, of aliphatic hydrocarbons and no more than 10%w/w of aromatic hydrocarbons.
  • aliphatic hydrocarbons as used herein and throughout the specification is meant to include open chain aliphatic hydrocarbons as well as cycloaliphatic hydrocarbons such as e.g. naphthenic hydrocarbons.
  • the total polycyclic aromatic hydrocarbons in the hydrocarbon oil is suitably less than 10 ppm, preferably less than 5 ppm and more preferably less than 1 ppm. Typically such hydrocarbon oil contains from 92-97% w/w of aliphatics and 3-8% w/w of aromatics.
  • the hydrocarbon oil component (b) in the blend is suitably prepared by feeding a waxy distillate through a hydrocracker at 70-95% conversion under elevated temperature and hydrogen pressure.
  • a hydrocracker In the first stage of this hydrocracker, sulphur and nitrogen compounds are removed and in the second stage the aromatics are hydrogenated to naphthenes; the hydrogenated products including the naphthenes are cleaved and rearranged to produce a controlled range of paraffins and isoparaffins.
  • Fuels and lubricant products are separated by atmospheric distillation from the resultant hydrocracked products and the 5-35% heavy component is the hydrocarbon fraction used as the hydrocarbon oil component (b) in the blend.
  • a product produced by this method is substantially free of any unsaturates.
  • This feedstock can be further refined, if necessary, by conventional techniques such as additional fractionation, extraction or dewaxing to obtain the finished product.
  • the resultant hydrocarbon oil has the following physical characteristics:
  • about 20% w/w comprises isoparaffins having an average carbon number of about 27.
  • the relative amounts of the ester component (a) and the hydrocarbon oil component (b) in the base fluid within the specified ranges above will depend upon the nature of the two components and their relative viscosities. For instance, if the hydrocarbon component (b) is within the physical characteristic specification defined above, and the ester component (a) is isotridecyldodecanedioate, the amount of ester (a) in the blend may suitably vary from 30-50% w/w, preferably from 40-50% w/w.
  • the lubricating composition of the present invention comprises minor proportions of conventional additives which include inter alia the following: one or more sludge dispersants, one or more VI improvers, one or more anti-wear additives, and one or more anti-oxidants.
  • the additive package used is known to comprise components which meet the stringent requirements of an API Performance Classification "SG". These requirements include successful testing in the following categories: rust test, dispersancy test, piston varnish test, low temperature sludge test and wear test.
  • Such additives are commercially available as an additives package sold e.g. as an "SG Additive Package" under the names GBX 2900 and GBX 2905 (both ex Adibis Ltd, UK).
  • Such an additive package suitably forms from 10-20% w/w, preferably from 11-16% w/w of the formulated lubricating composition.
  • compounds that may be present in such a package include anti-rust agents such as the overbased calcium or magnesium sulphonates or phenates; anti-wear agents such as the zinc dithiophosphates, preferably the zinc dialkyl dithiophosphates containing 5-15% w/w phosphorus (normally prepared using a mixture of secondary alcohols and representing 0.05% -0.5% w/w of phosphorus, typically 0.1-0.14% phosphorus in the finished oil); ashless dispersancy agents such as derivatives of long chain hydrocarbon substituted succinimides, especially the polyisobutenyl succinimides; and sludge dispersants which are oil soluble salts such as amides, imides, oxazolines and esters of mono- or di-carboxylic acids or anhydrides.
  • the anti-oxidants typically contain phenolic compounds and a typical antioxidant is commercially available as ADX 545A (ex Adibis Ltd).
  • the anti-oxidants are suitably present in an amount from 0.01-5% w/w, preferably from 0.1-2.0% w/w of the formulated lubricating composition.
  • the lubricating compositions also contain one or more VI improvers.
  • VI improvers include polymethacrylate type dispersants commercially sold as Plexol 1420 VX (Regd Trade Mark, ex Rohm GmbH) and hydrotreated polyisoprenes commercially sold as Shellvis 200 (Regd Trade Mark, ex Shell UK Ltd). In the case of the latter, it may used as a solution in the hydrocarbon oil component (b) above.
  • the VI improvers are suitably present in an amount from 2 to 5% w/w of the formulated lubricating composition.
  • a typical formulated lubricating composition (A) can be represented by the following components in w/w %: SG Additives Package (GBX 2905, ex Adibis Ltd) - 15.4 ADX 545A (anti-oxidant, ex Adibis Ltd) - 1.0 Plexol* 1420 (VI improver, ex Rohm GmbH) - 3.1 Shellvis* 200 (VI improver, 10% soln, ex Shell UK Ltd) - 6.0 Isotridecyldodecanedioate - 22.59 and Hydrocarbon oil** - 52.71 * Registered Trade Mark ** The hydrocarbon oil is a hydrotreated wax distillate containing 92.3% w/w aliphatics and 7.7% w/w aromatics which is substantially free of any unsaturates and had a polycyclic aromatic content of about 0.1 ppm. An oil of this type is described above.
  • Variations of the formulated lubricating composition (A) shown above can also be formulated in which the relative amounts of ester and hydrocarbon oil are (B) 32.28% and 49.32% respectively or (C) 39.5% each.
  • the performance of the lubricating compositions formulated in this manner upon engine testing showed relatively lower emissions, lower fuel consumption, lower oil consumption and low nitrogen oxides emission.
  • the formulated lubricating compositions according to the present invention were at least 80% biodegradable as measured by the CEC standard test procedure. The present invention is further illustrated with reference to the following Examples:
  • a base fluid was prepared using isotridecyldodecanedioate, and a hydrocracked wax distillate having the following physical characteristics: Property Typical Specification Test Method Colour 1.5 max ASTM D 1500 Density 0.83 ASTM D 1298 KV 40/cSt 17.28 ASTM d 445 KV 100/cSt 3.99 ASTM d 445 VI 128 ASTM D 2270 PMC/°C 220 ASTM D 93 Pour Point -27 ASTM D 97 Demulse/mins ⁇ 5 NFT* 60-125 Noack volatility/% 15.8 DIN 51581 Sulphur/% 0.08 XRF NFM 07053 CA/% 2 Brandes Method *Correlates with ASTM D 1401
  • This hydrocarbon oil was used to prepare formulated lubricating oil compositions according to the formulation in (A) in the following Examples 1-3.
  • the formulation was prepared using standard lubricant blending techniques described e.g. in "Lubricants and Related Products” by D Klamann, published by Verlag Chemie, 1984.
  • the formulated composition had the following characteristics: Property Limits Methods Viscosity @ 100°C 13.6-14.5 cSt ASTM D 445 Viscosity @ 40°C 75.0-83.0 cSt ASTM D 445 Viscosity @ -25°C ⁇ 3500 cP ASTM D 2602 Noack volatility 8.5-11.0% DIN 51581 Biodegradability >80% CEC-L-33-T-82 Calcium 0.300-0.332 ICP Phosphorus 0.102-0.114 ICP Zinc 0.105-0.135 ICP
  • the formulated composition had the following characteristics: Property Limits Method Viscosity @ 100°C 14.0 cSt ASTM D445 Viscosity @ -25°C 3200 cP ASTM D2602 Noack volatility 10.7% DIN 51581 Biodegradability 87% CEC-L-33-T-82 Calcium content 0.283 ICP Phosphorus content 0.119 ICP Zinc content 0.128 ICP
  • the formulated composition had the following properties: Property Limits Method Viscosity @ 100°C 14.5 cSt ASTM D445 Viscosity @ -25°C 3300 cP ASTM D2602 Noack volatility 10.4% DIM 51581 Biodegradability 86% CEC-L-33-T-82 Calcium content 0.310% ICP Phosphorus content 0.108% ICP Zinc content 0.125% ICP
  • compositions according to the present invention containing the blended base fluid according to the present invention show superior properties to those of prior art, especially in respect of their biodegradability.

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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)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)
  • Steroid Compounds (AREA)
  • Gyroscopes (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Claims (8)

  1. Composition d'huile lubrifiante pour moteur d'automobile qui possède une proportion principale d'un fluide de base, lequel fluide comprend un mélange:
    a) de dodécanedioate d'isotridécyle et
    b) d'au moins une huile hydrocarbonée comprenant jusqu'à 99,5% p/p d'hydrocarbures aliphatiques et pas plus de 10% p/p d'hydrocarbures aromatiques de sorte que le total des substances aliphatiques et aromatiques fasse 100% dans laquelle la quantité de composant (a) dans le mélange est comprise entre 25 et 55% p/p.
  2. Composition d'huile lubrifiante selon la revendication 1, dans laquelle le composant (b) d'huile hydrocarbonée est un distillat de cire hydrocraquée.
  3. Composition d'huile lubrifiante selon la revendication 1 ou la revendication 2 dans laquelle le composant (b) d'huile hydrocarbonée contient moins de 10 ppm d'hydrocarbures aromatiques polycycliques, de 92 à 97% p/p d'hydrocarbures aliphatiques et 3 à 8% p/p d'hydrocarbures aromatiques.
  4. Composition d'huile lubrifiante selon l'une des revendications précédentes, dans laquelle les hydrocarbures aliphatiques dans le composant (b) d'huile hydrocarbonée comprennent environ 20% p/p d'isoparaffines ayant un nombre d'atomes de carbone moyen d'environ 27.
  5. Composition d'huile lubrifiante selon l'une des revendications précédentes, dans laquelle le dodécanedioate d'isotridécyle est présent dans le mélange en quantité comprise entre 30 et 50% p/p.
  6. Composition d'huile lubrifiante selon l'une des revendications précédentes dans laquelle ladite composition comprend, de plus, des proportions mineures d'un ou plusieurs additifs choisis parmi: les dispersants de boue, les agents de dispersion sans cendre, les agents d'amélioration de la viscosité, les additifs anti-usure, les agents antirouille et les anti-oxydants.
  7. Composition d'huile lubrifiante selon la revendication 6, dans laquelle l'agent antirouille est le sulfonate ou le phénate de calcium ou de magnésium; l'agent anti-usure est un dithiophosphate de zinc, l'agent de dispersion sans cendre est un succinimide substitué par une longue chaîne hydrocarbonée; le dispersant de boue est un sel liposoluble tel que les amides, les imides, les oxazolines et les esters des acides ou anhydrides mono- ou di-carboxyliques; l'antioxydant est un composé phénolique; et l'agent d'amélioration de VI comprend un dispersant à base de polyméthacrylate ou un polyisoprène hydrotraité.
  8. Composition d'huile lubrifiante selon l'une des revendications précédentes dans laquelle ladite composition est biodégradable au moins à 80% tel que mesuré par le procédé d'essai normalisé CEC-L-33-T-82.
EP92311497A 1992-01-22 1992-12-16 Compositions d'huile lubrifiante Expired - Lifetime EP0552554B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9201338 1992-01-22
GB929201338A GB9201338D0 (en) 1992-01-22 1992-01-22 Lubricating oil compositions

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EP0552554A1 EP0552554A1 (fr) 1993-07-28
EP0552554B1 true EP0552554B1 (fr) 1997-03-05

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JP (1) JP3406339B2 (fr)
AT (1) ATE149559T1 (fr)
AU (1) AU654603B2 (fr)
CA (1) CA2086345C (fr)
DE (1) DE69217907T2 (fr)
DK (1) DK0552554T3 (fr)
ES (1) ES2098464T3 (fr)
FI (1) FI107052B (fr)
GB (1) GB9201338D0 (fr)
GR (1) GR3022747T3 (fr)
NO (1) NO305761B1 (fr)
NZ (1) NZ245717A (fr)
SG (1) SG46151A1 (fr)
ZA (1) ZA9374B (fr)

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US5562867A (en) * 1993-12-30 1996-10-08 Exxon Chemical Patents Inc Biodegradable two-cycle oil composition
EP0796309B1 (fr) * 1994-12-08 2001-09-26 ExxonMobil Chemical Patents Inc. Bases constituees d'esters synthetiques ramifies biodegradables et lubrifiants fabriques a partir d'elles
US7067049B1 (en) 2000-02-04 2006-06-27 Exxonmobil Oil Corporation Formulated lubricant oils containing high-performance base oils derived from highly paraffinic hydrocarbons
EP1266954A1 (fr) * 2001-06-15 2002-12-18 Infineum International Limited Mélange des bases d'huiles spécifiques pour des compositions lubrifiantes des moteurs diesel
EP1266955B1 (fr) * 2001-06-15 2013-11-06 Infineum International Limited Compositions lubrifiantes
CH703629A8 (de) * 2010-08-25 2012-04-30 Panolin Ag Esteröle.
US10822569B2 (en) 2018-02-15 2020-11-03 Afton Chemical Corporation Grafted polymer with soot handling properties
US10851324B2 (en) 2018-02-27 2020-12-01 Afton Chemical Corporation Grafted polymer with soot handling properties
US10899989B2 (en) 2018-10-15 2021-01-26 Afton Chemical Corporation Amino acid grafted polymer with soot handling properties
US11046908B2 (en) 2019-01-11 2021-06-29 Afton Chemical Corporation Oxazoline modified dispersants

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1594641A1 (de) * 1966-05-06 1971-01-28 Technochemie Gmbh Mehrbereichsoele
GB1131926A (en) * 1967-03-10 1968-10-30 Shell Int Research Improvements in or relating to ester-based lubricants
DE1913538A1 (de) * 1969-03-18 1970-10-01 Technochemie Gmbh Hochleistungs-Mehrbereichsschmieroele
BE803188A (fr) * 1972-08-09 1974-02-04 Sun Oil Co Pennsylvania Lubrifiant a base d'huile de petrole et de diester
US3974081A (en) * 1974-07-31 1976-08-10 Exxon Research And Engineering Company Biodegradable seal swell additive with low toxicity properties for automatic transmission fluids, power transmission fluids and rotary engine oil applications
JPH0730345B2 (ja) * 1986-09-08 1995-04-05 出光興産株式会社 潤滑油組成物
JPH0730346B2 (ja) * 1986-09-08 1995-04-05 出光興産株式会社 潤滑油組成物
EP0468109B2 (fr) * 1990-07-24 2001-06-27 Ethyl Petroleum Additives Limited Lubrifiants et fluides fonctionnels biodégradables

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FI930241A (fi) 1993-07-23
GR3022747T3 (en) 1997-06-30
ZA9374B (en) 1994-07-06
CA2086345C (fr) 2003-07-08
GB9201338D0 (en) 1992-03-11
DE69217907D1 (de) 1997-04-10
EP0552554A1 (fr) 1993-07-28
FI930241A0 (fi) 1993-01-21
SG46151A1 (en) 1998-02-20
ATE149559T1 (de) 1997-03-15
NO930192L (no) 1993-07-23
AU654603B2 (en) 1994-11-10
CA2086345A1 (fr) 1993-07-23
JPH05295383A (ja) 1993-11-09
DK0552554T3 (da) 1997-06-16
NO930192D0 (no) 1993-01-21
JP3406339B2 (ja) 2003-05-12
NZ245717A (en) 1994-11-25
NO305761B1 (no) 1999-07-19
DE69217907T2 (de) 1997-06-12
FI107052B (fi) 2001-05-31
AU3032492A (en) 1993-07-29
ES2098464T3 (es) 1997-05-01

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