EP0281692A1 - Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds - Google Patents
Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds Download PDFInfo
- Publication number
- EP0281692A1 EP0281692A1 EP87302031A EP87302031A EP0281692A1 EP 0281692 A1 EP0281692 A1 EP 0281692A1 EP 87302031 A EP87302031 A EP 87302031A EP 87302031 A EP87302031 A EP 87302031A EP 0281692 A1 EP0281692 A1 EP 0281692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sulfur
- nitrogen
- hydrogen sulfide
- amine
- hydrocarbon lubricant
- 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.)
- Withdrawn
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Classifications
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/02—Sulfurised compounds
- C10M135/04—Hydrocarbons
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- 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
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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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/221—Six-membered rings containing nitrogen and carbon only
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
- C10M2215/226—Morpholines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/26—Amines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/28—Amides; Imides
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/30—Heterocyclic compounds
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- 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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- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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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
- 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
Abstract
Description
- This application is directed to extreme pressure and antiwear additive for lubricants and fuels.
- U.S. Patent 3,390,086 discloses the reaction of polyalkylene succinimides with elemental sulfur to provide lube oil dispersants.
- U.S. Patent 3,401,118 discloses the preparation of alkenyl succinimides by reacting high molecular weight polyisobutenyl succinic anhydride with tetraethylene pentamine and subsequently reacting this product with low molecular weight polyisobutenyl succinic anhydride.
- U.S. Patent 3,676,346 discloses a mixture of sulfurized pour point depressants and condensation products of polyalkylene polyamines with alkenyl succinic anhydride.
- U.S. Patent 3,703,504 discloses a process which comprises sulfohalogenating an olefin with a sulfur halide in the presence of a catalytic quantity of a lower aliphatic alcohol to form a sulfohalogenated organic intermediate, and thereafter sulfurizing and dehalogenating the intermediate in the presence of a substantial quantity of a lower aliphatic alcohol by treatment with an aqueous alkali metal monosulfide solution derived from a spent aqueous alkali metal hydroxide effluent from hydrocarbon purification and having a substantial combined sulfur content in producing an organic sulfide of high combined sulfur content.
- This invention provides a process for making extreme pressure (EP) and antiwear additives for lubricants and fuels. The process comprises reacting an olefin, elemental sulfur, hydrogen sulfide, and a polymeric nitrogen-containing compound. Optionally a small amount or catalytic amount of an amine is added to the reaction mixture. In another aspect this invention comprises the additive compositions produced by this process. In still another aspect this invention comprises the process for making lubricant and fuel compositions by adding to said lubricant or fuel an effective amount of the additive material. In still another aspect this invention comprises the lubricant and fuel compositions so made.
- According to this invention, the additive material of improved performance and improved odor is formed by reacting an olefin, elemental sulfur, hydrogen sulfide, and a polymeric nitrogen-containing compound. Optionally, a catalytically effective amount of an amine is included in the reaction.
- The olefin reactant preferably is a monoolefin and preferably is isobutylene but can also comprise other butenes, propylenes, pentenes and mixtures of the foregoing.
- The sulfur reactant is supplied to the reaction mixture preferably in a powdered or a ground elemental form and should have a commercial grade of purity.
- The hydrogen sulfide is added to the reaction mixture in the form of a gas preferably but may be admitted to the reaction mixture, if the reactor pressure is sufficient, in a liquid form.
- The nitrogen-containing polymeric material preferably is selected from succinimides, amides, imides, esters containing nitrogen atoms, polyoxazoline and imidazoline compounds. Other preferred nitrogen-containing polymeric materials include the reaction products of polyisobutenyl succinic anhydrides, and carboxylic acids, or dicarboxylic acids or their corresponding anhydrides with:
- (a) polyethylene amines such as diethylenetriamine, triethylenetetramine, or tetraethylenepentamine;
- (b) polyols such as pentaerythritol, trimethylol propane in conjunction with (a) preceding or (c) following; and
- (c) hydroxyl-containing amines such as tris(hydroxymethyl)aminomethane.
- The molecular weight of the polymeric material should be at least 500-50,000, and preferably 1,000 to 5,000.
- The polyoxazoline polymers are well known materials. Poly (2-substituted-2-oxazoline) polymers are available from Dow Chemical Company, Midland, Michigan. Poly(2-ethyl-2-oxazoline) designated PEOX 425 (Dow) is used in the examples which follow and has been found particularly useful.
- The alkyl imidazoline compounds, also well known, can be prepared by reacting one mole of hydroxyethyl-ethylene diamine with an appropriate organic acid, such as naphthenic or decanoic acid. Such a preparation is described in U.S. Patent 4,440,658.
- A typical succinimide useful in this invention is the reaction product of a polyisobutenyl succinic anhydride (made by the co-reaction of polyisobutylene of 900 molecular weight with maleic anhydride) with tetraethylene pentamine. In addition to the materials described above other polymeric materials can also be used such as polymeric esters, amides, imides and/or combinations thereof with succinimides.
- The nitrogen-containing polymeric material can also be selected from polymeric esters, polymer ester/amides and/or borated derivatives as the fourth co-reactant to form improved and novel products. Included are: "carboxylic dispersants" such as those described in U.S. 3,163,603, 3,184,374, 3,215,707, 3,316,177, 3,340,281, 3,341,547, 3,632,510, 3,632,511, 3,697,428, 3,725,441, or amine dispersants such as those described in U.S. 3,413,347, 3,697,574, 3,725,277, 3,725,480, 3,726,882 or any of above post-treated with boron compounds, epoxides, urea, etc., such as those in U.S. 3,702,757, 3,703,536, 3,704,308, and 3,708,522. Omission of the above polymeric amines forms a product with higher objectionable odor level.
- The reaction, preferably, is carried out by the direct reaction of the olefin, sulfur, hydrogen sulfide and nitrogen-containing polymer at temperatures from 130°C to 200°C for periods of between 2 and 24 hours at pressures from atmospheric up to about 6205 kPa.g (900 psig). The preferred ratios between the reactants is between 3 and 0.5 moles of olefin, .001 and 0.4 moles of nitrogen-containing polymer, and 0.5 to 0.7 (preferably 0.6) moles of hydrogen sulfide, each to 1 mole of sulfur. The optional amount of catalytic amines present should be that amount required to catalyze the reaction. The amine can be chosen from the aliphatic amines such as propyl amine or butyl amine. After reaction is complete the product is vacuum topped, or nitrogen sparged and is then filtered to yield the desired reaction product composition. The reaction product thus obtained is believed to be a mixture of compounds, the mixture working to provide improved thermal and oxidative stability and improved lubricity properties when added in effective amounts to a lubricant composition or hydrocarbon fuel. Ordinarily effective amounts will be in the range of 5.7 to 1430 kg per 1000m³ (2 to 500 pounds per 1000 barrels) of hydrocarbon material. It will also be understood that the resulting fuel and lubricant compositions will contain other additive materials for other purposes in the compositions. Other additives can include detergents, antioxidants, pour depressants, auxiliary EP/antiwear additives, color stabilizers, antifoam agents and the like.
- It will be noted that in the process of reacting the above listed materials there should be a certain amount of free polymer amine in the nitrogen-containing polymer material used as a co-reactant. This amine is required to function as a reactant. Ordinarily there will be some free amine present in the products commercially available. A concentration of between 0.5 and 10 percent of the total weight of reactants of amine will be desirable. Suitable amines include, but not exclusively, reaction products of polyisobutenylsuccinic anhydride with polyethylene amines such as diethylenetriamine, triethylenetetramine, tetraethylenepentamine and hydroxyl containing amines such as tris(hydroxymethyl)aminomethane.
- Approximately 408 grams of sulfur, 4 grams of polyisobutenyl succinimide containing free amine, 601 grams of isobutylene, and 142 grams of hydrogen sulfide were charged to a stainless steel reactor purged with nitrogen and equipped with a heater, cooler and agitator. The reactants were heated at approximately 160 to 165°C until the pressure, which reached a maximum of about 4830 kPa.g (about 700 psig) during the early stages of the reaction, dropped to well below 276 kPa.g (40 psig) indicating completion of the reaction. The reaction time was approximately 10 hours. The crude product was then sparged at about 100°C with nitrogen for about 10 hours to remove small amounts of volatiles. The crude product was an amber colored, low viscosity fluid with low odor, which was then filtered through a bed of diatomaceous earth. The product when analyzed contained approximately 45.5 percent sulfur.
- Approximately 408 grams of sulfur, 58 grams of polyisobutenyl succinimide containing free amine, 601 grams of isobutylene, and 142 grams of hydrogen sulfide were charged to a stainless steel reactor equipped as generally described in Example 1. The reactants were heated at approximately 160 to 165°C and a pressure maximum was noted similar to that described in Example 1. During the latter stages of the approximate 12-hour reaction period, the pressure dropped to well below 276 kPa.g (40 psig) and leveled off, indicating completion of the reaction. The crude product was then sparged at about 100°C with nitrogen for approximately two hours to remove small amounts of volatiles. The crude product was an amber colored, low viscosity fluid with low odor which was filtered through a bed of diatomaceous earth. The product when analyzed contained approximately 46.9 percent sulfur.
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- The products of Examples 1 and 2 were blended into fully formulated automotive gear oil formulations containing inhibitors, antirust and anticorrosion/antistaining additives and evaluated for EP/antiwear properties using the CRC-L-42 gear test. As can be seen from Table 2, formulations containing 3.0 percent of the products of Examples 1 and 2 passed the scoring test. Equivalent 3.0 percent concentrations and even higher concentrations of 3.2 and 3.4 percent of the product of U.S. Patent 3,703,504 (sulfurized isobutylenes) failed the identical scoring test with as much as 30-35 percent scoring compared to Examples 1 and 2 which show only 3 to 5 percent scoring.
- The products of the examples were evaluated for odor and were found to be significantly improved when compared to the product of Example 1 of U.S. Patent 4,344,854, made in a manner analogous to the examples of this application but without the use of the above-described polymeric amine as a co-reactant.
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US06/818,313 US4661274A (en) | 1986-01-13 | 1986-01-13 | Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds |
EP87302031A EP0281692A1 (en) | 1987-03-10 | 1987-03-10 | Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP87302031A EP0281692A1 (en) | 1987-03-10 | 1987-03-10 | Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds |
Publications (1)
Publication Number | Publication Date |
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EP0281692A1 true EP0281692A1 (en) | 1988-09-14 |
Family
ID=8197808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87302031A Withdrawn EP0281692A1 (en) | 1986-01-13 | 1987-03-10 | Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds |
Country Status (1)
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EP (1) | EP0281692A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0389187A2 (en) * | 1989-03-23 | 1990-09-26 | Bp Chemicals (Additives) Limited | Lubricating oil additives |
EP0411861A2 (en) * | 1989-08-03 | 1991-02-06 | Ethyl Corporation | Sulfurized olefin polymers soluble in polyalphaolefin lubricant oils |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3390086A (en) * | 1964-12-29 | 1968-06-25 | Exxon Research Engineering Co | Sulfur containing ashless disperant |
US3664955A (en) * | 1969-12-31 | 1972-05-23 | Exxon Research Engineering Co | Lubricating oil compositions of improved thermal stability |
US3676346A (en) * | 1970-02-19 | 1972-07-11 | Exxon Research Engineering Co | Lubricating oil compositions containing improved sludge inhibiting additives |
US4191659A (en) * | 1975-03-21 | 1980-03-04 | The Lubrizol Corporation | Sulfurized compositions |
GB2034747A (en) * | 1978-11-13 | 1980-06-11 | Ethyl Corp | Lubricant oil composition |
EP0016660A1 (en) * | 1979-03-26 | 1980-10-01 | Exxon Research And Engineering Company | Thio-bis-(hydrocarbon-bisoxazolines) and analogs, process for their preparation and their use as oleaginous additives |
US4344854A (en) * | 1975-03-21 | 1982-08-17 | The Lubrizol Corporation | Sulfurized compositions |
US4486321A (en) * | 1983-01-10 | 1984-12-04 | Mobil Oil Corporation | Friction reducing additives and lubricating oil compositions containing same |
US4549974A (en) * | 1983-09-23 | 1985-10-29 | Mobil Oil Corporation | Lubricants containing sulfurized organic acid diamine salts |
US4584113A (en) * | 1984-10-25 | 1986-04-22 | The Lubrizol Corporation | Sulfurized compositions and lubricants containing them |
EP0215610A2 (en) * | 1985-09-12 | 1987-03-25 | Mobil Oil Corporation | Sulfurized olefins as antiwear additives and compositions thereof |
US4661274A (en) * | 1986-01-13 | 1987-04-28 | Mobil Oil Corporation | Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds |
-
1987
- 1987-03-10 EP EP87302031A patent/EP0281692A1/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3390086A (en) * | 1964-12-29 | 1968-06-25 | Exxon Research Engineering Co | Sulfur containing ashless disperant |
US3664955A (en) * | 1969-12-31 | 1972-05-23 | Exxon Research Engineering Co | Lubricating oil compositions of improved thermal stability |
US3676346A (en) * | 1970-02-19 | 1972-07-11 | Exxon Research Engineering Co | Lubricating oil compositions containing improved sludge inhibiting additives |
US4191659A (en) * | 1975-03-21 | 1980-03-04 | The Lubrizol Corporation | Sulfurized compositions |
US4344854A (en) * | 1975-03-21 | 1982-08-17 | The Lubrizol Corporation | Sulfurized compositions |
GB2034747A (en) * | 1978-11-13 | 1980-06-11 | Ethyl Corp | Lubricant oil composition |
EP0016660A1 (en) * | 1979-03-26 | 1980-10-01 | Exxon Research And Engineering Company | Thio-bis-(hydrocarbon-bisoxazolines) and analogs, process for their preparation and their use as oleaginous additives |
US4486321A (en) * | 1983-01-10 | 1984-12-04 | Mobil Oil Corporation | Friction reducing additives and lubricating oil compositions containing same |
US4549974A (en) * | 1983-09-23 | 1985-10-29 | Mobil Oil Corporation | Lubricants containing sulfurized organic acid diamine salts |
US4584113A (en) * | 1984-10-25 | 1986-04-22 | The Lubrizol Corporation | Sulfurized compositions and lubricants containing them |
EP0215610A2 (en) * | 1985-09-12 | 1987-03-25 | Mobil Oil Corporation | Sulfurized olefins as antiwear additives and compositions thereof |
US4661274A (en) * | 1986-01-13 | 1987-04-28 | Mobil Oil Corporation | Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and nitrogen containing polymeric compounds |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0389187A2 (en) * | 1989-03-23 | 1990-09-26 | Bp Chemicals (Additives) Limited | Lubricating oil additives |
EP0389187A3 (en) * | 1989-03-23 | 1991-02-27 | Bp Chemicals (Additives) Limited | Lubricating oil additives |
US5240625A (en) * | 1989-03-23 | 1993-08-31 | Bp Chemicals (Additives) Limited | Lubricating oil additives |
EP0411861A2 (en) * | 1989-08-03 | 1991-02-06 | Ethyl Corporation | Sulfurized olefin polymers soluble in polyalphaolefin lubricant oils |
EP0411861A3 (en) * | 1989-08-03 | 1991-07-31 | Ethyl Corporation | Sulfurized olefin polymers soluble in polyalphaolefin lubricant oils |
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