US2676925A - Method of dispersing metal oxides and hydroxides in lubricating oils - Google Patents

Method of dispersing metal oxides and hydroxides in lubricating oils Download PDF

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Publication number
US2676925A
US2676925A US203783A US20378350A US2676925A US 2676925 A US2676925 A US 2676925A US 203783 A US203783 A US 203783A US 20378350 A US20378350 A US 20378350A US 2676925 A US2676925 A US 2676925A
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Prior art keywords
hydroxides
calcium
polyvalent metal
lubricating oil
metal oxides
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US203783A
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Eddie G Lindstrom
Richard L Woodruff
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California Research LLC
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California Research LLC
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Priority to BE505425D priority Critical patent/BE505425A/xx
Priority to NL82973D priority patent/NL82973C/xx
Application filed by California Research LLC filed Critical California Research LLC
Priority to US203783A priority patent/US2676925A/en
Priority to GB19393/51A priority patent/GB718714A/en
Priority to DEC4623A priority patent/DE1002491B/de
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
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    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/123—Reaction products obtained by phosphorus or phosphorus-containing compounds, e.g. P x S x with organic compounds
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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    • C10M2201/063—Peroxides
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    • 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
    • C10M2205/024—Propene
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    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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    • 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
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    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
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    • C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
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    • C10N2010/02—Groups 1 or 11
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C10N2040/253—Small diesel engines

Definitions

  • This invention pertains to a method of dispersing polyvalent metal oxides and hydroxides in lubricating oils.
  • acids are formed in the lubricating oil itself and in the combustion chamber.
  • the acids formed in the lubricating oil itself are normally caused by oxidation of the lubricating oil during engine operation.
  • the resulting organic acids and peroxides break down the lubricating oil and contribute to wear by corrosion.
  • the combustion chamber acids normally come from the combustion products of the fuel. For example, when high sulfur fuels are used in diesel engines, sulfuric acid is formed from the sulfur. This sulfuric acid finds its way into the crankcase along with the blow-by gases.
  • col1oida1 dispersions (colloidal solutions) of polyvending metal oxides and hydroxides in lubricating oils can be obtained by the use of dihydric alcohols; the dispersions stabilized by dispersants.
  • polyvalent metal oxides and hydroxides are dispersed in lubricating oils by a method involving the use of dihydric alcohols, which dispersion is stabilized by a dispersant.
  • the polyvalent metal oxides and hydroxides normally are dissolved (or dispersed) in a dihydric alcohol.
  • the dihydric alcohol solutions (or dispersions) are then thoroughly blended with lubricating oils to form dispersions of polyvalent metal oxides or hydroxides, which dispersions are stabilized by dispersants.
  • Lubricating oils in which the polyvalent metal oxides and hydroxides can be dispersed according to the present invention include a wide variety of lubricating oils such as naphthenic base, parafiin base, and mixed base mineral oils, other hydrocarbon lubricants, e. g., lubricating oils derived from coal products and synthetic oils, e. g., alkylene polymers (such as polymers of propylene, butylene, etc., and mixtures thereof), alkylene oxide type polymers, dicarboxylic acid esters and liquid esters of acids of phosphorus.
  • Synthetic oils of the alkylene oxide type polymer which may be used include those exemplified by alkylene oxide polymers (e.
  • propylene oxide polymers and derivatives, including alkylene oxide polymers prepared by polymerizing alkylene oxides (e. g., propylene oxide) in the presence of Water or alcohols, e. g., ethyl alcohol, and esters of alkylene oxide type polymers, e. g., acetylated propylene oxide polymers prepared by acetylating the propylene oxide polymers containing hydroxyl groups.
  • alkylene oxide polymers prepared by polymerizing alkylene oxides (e. g., propylene oxide) in the presence of Water or alcohols, e. g., ethyl alcohol, and esters of alkylene oxide type polymers, e. g., acetylated propylene oxide polymers prepared by acetylating the propylene oxide polymers containing hydroxyl groups.
  • Synthetic oils of the dicarboxylic acid ester type include those which are prepared by esterifying such dicarboxylic acids as adipic acid, azelaic acid, suberic acid, sebacic acid, alkenyl succinic acid, fumaric acid, maleic acid, etc., with alcohols such as butyl alcohol, hexyl alcohol, Z-ethylhexyl alcohol, dodecyl alcohol, etc.
  • Examples of dicarboxylic acid ester synthetic oils include dibutyl adipate, i r t ethylhexyl sebacate, di-n-hexyl fumarate polymer, etc.
  • Synthetic oils of the type of liquid esters of acids of phosphorus include the esters of phosphoric acid, e. g., tricresyl phosphate; the esters of phosphonic acid, e. g., diethyl ester of decane phosphonic acid, or other such esters as obtained by reacting alkyl phosphonyl chlorides with hydroxyl-containing compounds, such as phenols and aliphatic alcohols, and with olefin oxides such as propylene oxide, as described in Jensen et a1.
  • the polyvalent metal oxides and hydroxides which are dispersed in lubricating oil compositions according to this invention include the oxides and hydroxides of the metals of Groups II, III, IV and VIII of Mendeleefs Periodic Table of Elements, particularly calcium, magnesium, strontium, barium, lead, tin, zinc, cadmium, iron, cobalt, nickel and aluminum.
  • the dihydric alcohols used to disperse the polyvalent metal oxides and hydroxides in lubricating oils according to the present invention are dihydric alcohols containing up to 6 carbon atoms.
  • Suitable dihydric alcohols include, for example, ethylene glycol, propylene glycol, butane diol-2,3; pentane dim-2,4; Z-methyl butane diol-1,3; 2-methyl butane-2,4 and 2-methyl butane diol-3,4.
  • ethylene glycol is the preferred dihydric alcohol.
  • the amount of the dihydric alcohols used will depend in part upon the nature of the dihydric alcohol itself which is used, and as noted above, on the amount of polyvalent metal oxides and hydroxides which are to be dispersed. In general, the use of low molecular weight dihydric alcohols (e. g., ethylene glycol) results in obtaining a greater amount of the oxides and hydroxides dispersed in the lubricating oil than the use of a higher molecular weight dihydric alcohol (e. propylene glycol) when both are used in the same amounts by weight.
  • low molecular weight dihydric alcohols e. ethylene glycol
  • a higher molecular weight dihydric alcohol e. propylene glycol
  • a sufiicient amount of dihydric alcohol is employed to disperse the polyvalent metal oxides or hydroxides in a reasonably short time. That is, the amount of dihydric alcohol used is sufiicient to cause substantial contact between the polyvalent metal oxides or hydroxides and the lubrieating oil composition in which the polyvalent metal oxides and hydroxides are to be dispersed.
  • the temperatures at which it is desired to promote the dispersion of the polyvalent metal oxides and hydroxides in the lubricating oil composition by means of the dihydric alcohol are dependent also to a large extent on the nature of the polyvalent metal oxides and hydroxides and the dihydric alcohols. It is preferred to use the minimum temperatures at which the dispersions will take place. In most instances it is not necessary to use temperatures above about 400 F. The dispersion will normally take place in a temperature range of 250 F. to 350 F., but, if it is necessary. temperatures as low as 200 F. may be used.
  • the dispersions are stabilized by the addition of a dispersant which forms a part of the lubricating oil composition.
  • the dihydric alcohol is then removed from the composition by distillation or other means.
  • the dispersants which are used to stabilize the dispersions of polyvalent metal oxides and hydroxides prepared according to the present invention include polyvalent metal sulfonate, sulfates, phosphates, thiophosphates, phosphonates, thiophosphonates, phenates, naphthenates, carboxylates, etc.
  • Polyvalent metal sulfonate dispersants may be represented by the formulas (RSOsMM and [(R) aASOIilrIVI wherein R is a high molecular weight cyclic, straight-chained or branched-chained, saturated or unsaturated essentially hydrocarbon radical having a molecular weight ranging from about to about 800; A is an aromatic radical, such as benzene, naphthalene, anthracene, biphenyl, etc.; a is a number having a value of 1 to 4; M is a polyvalent metal, and a: is a number having a value equal to the valence of the polyvalent metal. As the metal, calcium, barium, strontium, mag nesium, zinc and lead are preferred.
  • hydrocarbon i. e., hydrocarbonaceous radical
  • radicals which are composed mainly of hydrogen and carbon, and include such radicals which contain, in addition, minor amounts of substituents such as chlorine, bromine, oxygen, hydroxyl groups, etc., which do not substantially affect their hydrocarbon character.
  • hydrocarbonaceous radicals examples include the following: dodecane, hexadecane, eicosane, triacontane radicals; radicals derived from petroleum hydrocarbons such as white oil, wax, olefin polymers (e. g., polypropylene and polybutylene, etc.).
  • the sulfonic acids used in preparing the sulfonates of this invention also include the oil-soluble sulfonic acids obtained from petroleum, such as the mahogany acids, and the synthetic sulfonic acids prepared by various methods of synthesis (e.
  • sulfonic acids prepared by reacting a chlorinated white oil with benzene, using hydrofluoric acid as the catalyst, then treating the resulting white oil alkylated benzene with chlorosulfonic acid or fuming sulfuric acid to form a white oil benzene sulfonic acid).
  • the metal sulfonates are exemplified as follows: calcium white oil benzene sulfonate, magnesium white oil benzene sulfonate, calcium dipolypropene benzene sulfonate, magnesium dipolypropene benzene sulfonate, calcium mahogany petroleum sulfonate, magnesium mahogany petroleum sulfonate, calcium triacontyl sulfonate and magnesium triacontyl sulfonate, calcium lauryl sulfonate, magnesium lauryl sulfonate, etc.
  • Phosphonate dispersants which can be used according to this invention are represented by the empirical formula:
  • R is a straight-chained or branchedchained, saturated or unsaturated substantially hydrocarbon radical having from '7 to 60 carbon atoms
  • M represents a divalent metal, preferably calcium, barium, magnesium, lead and zinc.
  • the hydrocarbonaceous radicals can be derived from organic compounds, such as the following: cycloaliphatic hydrocarbons, such as methylcyclohexane, diethylcyclohexane, cetylcyclohexane, tetralin, ctc.; aliphatic hydrocarbons such as propane, propane, butane, butene, isobutane, pentane, pentene, isopentene, El-methylpentane, hexane, hexene, isohexane, isohexene, isohexene, isoheptane, heptane, heptcne, octane, octene, iso-octane, cetane, hexadecane, octadecane, tetradecane, dodecane, hydrogenated olefin polymers; and aromatic hydrocarbons substituted by aliphatic or
  • Suitable radicals can also be obtained from mixtures of hydrocarbon, e. g, gasoline, kerosene, mineral lubricating oil fractions (e. g., white oil) and paraffin Wax.
  • hydrocarbon e. g, gasoline, kerosene, mineral lubricating oil fractions (e. g., white oil) and paraffin Wax.
  • the phosphonates used in this reaction can be preparedfromphosphonyl chlorides and phosphonic acids and their rsters, as set forth in the Jensen and Clayton patent application Serial No. 86,856, filed April 11, 1949.
  • Phosphate dispersants of this in ention are metal salts of substituted derivatives of acids of phosphorus, such as phosphorus acid, HaPOx: hypophosphoric acid, HzPOsI acid, H3PO'4; and pyrophosphoric acid, I'IdPilQ'l.
  • the phosphates of this invention are metal salts formed from substituted oxyacids of pentavalent phosphorus of the following type formulas:
  • R and R may be alkyl, aryl, alka-ryl, aralkyl, or cyclic non-benzenoid radicals.
  • substituted phosphoric acids containing at least 12 carbon atoms especially preferred are alkyl or alkaryl substituted phosphoric acids having at least 12 carbon atoms in the molecule.
  • substituted acids of phosphorus which are used in the formation of the polyvalent metal salts are as follows:
  • the naphthenates contemplated herein as dispersants are the polyvalent metal salts of naphthenic acids; that is, the polyvalent metal salts of the carboxylic acids of the naphthenes, in particular, calcium, barium, zinc, lead, strontium, magnesium, manganese and copper salts of the petroleum naphthenic acids.
  • the phenates contemplated herein as dispersants are polyvalent metal salts of phenol and substituted phenols.
  • polyvalent metal phenates include the calcium, barium, strontium, iron, lead, zinc, manganese, magnesium and copper salts of octyl phenol, decyl phenol, lauryl phenol, pentadecyl phenol, cetyl phenol, triacontyl phenol, etc.
  • the dispersants can be used in amounts of 0.1% to by weight of the total composition. However, because lubricating oil compositions orthopliosphoric It is x containing from 0.3% to 2.0% of the dispersants markedly increase the over-all rating of an engine, it is preferred to use these latter amounts.
  • the amounts of polyvalent oxides and hydroxides which can be stably dispersed in the lubricating oil depends on the effectiveness of the particular dispersant used.
  • One part by weight of a dispersant can stably disperse as much as 0.2 part or more by weight of polyvalent metal oxides or hydroxides.
  • 1 part by weight of lead mahogany sulfonate can stably disperse 0.7 part by weight of lead oxide.
  • Five parts by weight of calcium mahogany sulfonate can stably disperse 1 part by weight of calcium hydroxide.
  • from 0.02% to 7% by weight of oxide and hydroxide can be. dispersed in the lubricating oil composition.
  • the resulting lubricating oil composition is clear and filterable.
  • the effectively stabilized colloidal dispersion is similar in appearance to a clear solution which can be filtered without removing any of the in gradients of the composition.
  • the polyvalent metal of the dispersant may be the same the polyvalent metal of the oxide or hydroxide dispersed; or the polyvalent metal of the dispersant may be different from the polyvalent metal oxide or hydroxide dispersed.
  • a calcium sulfonate may be used in a lubricating oil composition to stabilize a dispersion of lead oxide; or a calcium sulfonate may be used in a lubricating oil composition to stabilize a dispersion of lime.
  • the polyvalent metal oxides or hydroxides may be blended with the dispersants in the lubricating oil prior to being mixed with the dihydric alcohol, or the polyvalent metal oxides or hydroxides may be blended with the dihydric alcohol and the dispersant first before blending this mixture with the lubricating oil, or all of the ingredients may be blended together at once. It is preferred to mix the dihydric alcohols and the metal oxides or hydroxides first to obtain a colloidal dispersion or solution of the metal oxides or hydroxides in the polyhydric alcohols before mixing with the lubricating oil and dispersant.
  • polyvalent metal oxides and hydroxides are stably dispersed in lubricating;- oil I compositions in accordance with this invention by heating a mixture of a dispersant, a polyvalent metal oxide and/or hydroxide, and a dihydric alcohol in a lubricating oil to a temperature of about 200 F. to 400 F. (250 F. to 350 F. being preferred) for a suflicient period of time until. the desired amount of polyvalent metal oxides and hydroxides are dispersed in the lubrieating oil composition.
  • the combined weight of the sodium sulfonate was 515.
  • the sodium sulfonate-mineral oil mixture was then added to 170 parts by weight of petroleum thinner having a boiling range of 186 F. to 290 F. This whole mixture was washed with dilute aqueous sodium chloride to remove the sodium sulfate.
  • Calcium mahogany petroleum sulfonate was prepared by emulsifying 76 parts by weight of a 10% aqueous solution of calcium chloride in the mineral oil-sodium sulfonate blend. All inorganic salts were removed from the oil phase by water washes. The thinne and the water were removed by heating the mixture to a temperature of 320 F., at a pressure of 30 millimeters of mercury.
  • the mineral oil blend of neutral calcium mahogany petroleum sulfonate thus formed contained 1.75% calcium and 2.98% sulfurv Exam le II-Preparation of calcium dialkyl benzene sulfonate
  • the dialkyl benzene used in this example was obtained by alkylation of benzene with polypropylene having a molecular weight of about 170, using hydrofluoric acid as the catalyst.
  • the dialkyl benzene stock (37 parts by weight) was treated with 48 parts by weight of 27% fuming sulfuric acid, after which the acid and sludge settled out and was discarded.
  • the sulfonated material was neutralized with aqueous caustic soda. To this stock, 29 parts by weight of a mineral oil having a viscosity of 350 SSU at 1 0 F. was added.
  • the mineral oil blend of crude sodium dialkyl benzene sulfonate was dissolved in 80 parts by weight of petroleum thinner having a boiling range of 186 to 290 R, which solution was then washed with aqueous sodium chloride to remove the sulfate present.
  • the sodium dialkyl benzene sulfonate was converted to the calcium dialkyl benzene sulfonate by metathesis resulting from the addition of 50 parts by weight of 'a aqueous calcium chloride solution.
  • the whole mixture was water washed to free the mixture of any residual inorganic salts.
  • the thinner and the water were removed by heating the whole mixture to a temperature of 320 F. at a pressure of 30 millimeters of mercury.
  • the mineral oil blend of calcium dialkyl benzene sulfonate thus prepared contained 1.25% calcium and 2.25% sulfur.
  • Example III is representative of a preparation of a dispersion of calcium oxide in lubricating oil.
  • Example III-Stabilized colloidal dispersion of calcium oxide A mixture of 450 grams of a mineral oil solution of calcium mahogany petroleum sulfonate (the oil solution having 1.15% calcium), 6.? grams of calcium oxide and 320 grams of ethylene glycol were heated together with stirring at a temperature of 300 F. for a period of 3 hours. The ethylene lycol was then removed by heating to a temperature of 320 F. at a pressure of 3 millimeters of mercury. The remaining mineral oil mixture was filtered. This filtered mineral oil solution contained 2.14% calcium, which showed the presence of 86% more calcium in the lubricating oil after the dispersion than before.
  • ethylene glycol was used as the dihydric alcohol.
  • Example IV-Coll0idal dispersions of calcium oxide in lubricating oil stabilized by calc um naphthenate A mixture of 370 grams of a mineral oil solution of calcium naphthenate (the oil solution having 2.57% calcium) and grams of calcium oxide in ethylene glycol (the ethylene glycol solution contained 3.6% calcium) was heated to 380 F. for a period of 2 hours. Due to the increase in the viscosity an additional 100 grams of a mineral oil were added, and the mixture was heated for an additional period of 1 hour. The ethylene glycol was then removed by heating to a temperature of 450 F. at atmospheric pressure. The dispersion thus prepared contained 2.89% calcium, of which 2.02% was accounted for by the calcium in calcium naphthenate.
  • polyvalent metal oxides and hydroxides which are dispersible according to above procedures are useful as additives in lubricating oils for increasing the over-all rating of the engine.
  • these dispersions of polyvalent metal oxides and hydroxides assist in keeping piston skirts clean, preventing deposit formation in ring grooves and in ring belt areas,
  • This L-l Caterpillar Test was run for a period of 120 hours in a single cylinder Caterpillar engine having an exhaust temperature of 800 F., using a fuel containing 0.1% sulfur.
  • the lubricating oil compositions may contain oxidation inhibitors, such as organo esters of phosphorus (e. g., zinc cetylphenyl dithiophosphate and calcium cetylphenyl dithiophosphate); metal salts of thiocarbamie acids (e. g., zinc dibutyl dithiocarbamate) sulfides (e.
  • organo esters of phosphorus e. g., zinc cetylphenyl dithiophosphate and calcium cetylphenyl dithiophosphate
  • metal salts of thiocarbamie acids e. g., zinc dibutyl dithiocarbamate
  • sulfides e.
  • sulfurized diparaffin sulfide sulfurized olefins Pass-1311718118 reaction products, eta
  • amines phenyl alpha naphthyl amine; i,4-diamino (dodecyl) anthraquinone; p,p-dioctyl dip henyl amine; N-diethyl thiocarbamyl-p phenylene diarnine, etc).
  • the lubricating oil composition may contain pour point depressants, corrosion inhibitors, oiliness agents, extreme pressure agents, blooming agents, compounds for enhancing the viscosity index of hydrocarbon oils; grease-forming agents, other dispersants, etc.
  • a process of incorporating polyvalent metal base substances in lubricating oils to produce stable, filterable compositions which comprises the steps of forming a mixture of a lubricating oil,
  • an oil soluble polyvalent metal dispersant and an inorganic polyvalent metal base selected from the group consisting of oxides and hydroxides, said dihydric alcohol being present in the mixture in an amount ranging from 2 to 50 moles for each mole of said inorganic metal base, and heating said mixture for a sufficient time to effect the dispersion of said inorganic metal base in the lubricating oil-dispersant composition and to remove dihydric alcohol.
  • a process for incorporating polyvalent metal base substances in lubricating oils to produce stable, filterable compositions which comprises the steps of first mixing an inorganic alkaline earth metal base selected from the group consisting of oxides and hydroxides with 10 to 30 moles of ethylene glycol per mole of said metal phase, dispersing said mixture of metal base and ethylene glycol in a lubricating oil containing an alkaline earth metal sulfonate dispersant, said dispersant being present in an amount of at least 1 part by Weight for each 0.?
  • said lubricating oil being present in an amount sufficient to give an inorganic metal base concentration in said lubricating oil of 0.02 to 7% by weight, and heating the resulting dispersion for a sufficient time to remove a substantial proportion of said ethylene glycol.

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  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
US203783A 1950-12-30 1950-12-30 Method of dispersing metal oxides and hydroxides in lubricating oils Expired - Lifetime US2676925A (en)

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BE505425D BE505425A (en, 2012) 1950-12-30
NL82973D NL82973C (en, 2012) 1950-12-30
US203783A US2676925A (en) 1950-12-30 1950-12-30 Method of dispersing metal oxides and hydroxides in lubricating oils
GB19393/51A GB718714A (en) 1950-12-30 1951-08-16 Lubricating oil compositions
DEC4623A DE1002491B (de) 1950-12-30 1951-08-22 Zusatzmittel fuer Schmieroele

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BE (1) BE505425A (en, 2012)
DE (1) DE1002491B (en, 2012)
GB (1) GB718714A (en, 2012)
NL (1) NL82973C (en, 2012)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742427A (en) * 1953-06-08 1956-04-17 Socony Mobil Oil Co Inc Lubricating oil containing dispersed magnesium
US2758085A (en) * 1953-06-08 1956-08-07 Socony Mobil Oil Co Inc Method for incorporating oil-insoluble, solid addition agents in mineral oils
US2781314A (en) * 1953-12-29 1957-02-12 Exxon Research Engineering Co Oil compositions containing solid particles
US2850450A (en) * 1954-01-04 1958-09-02 California Research Corp Crankcase lubricant for spark ignition engines
US2865857A (en) * 1955-07-13 1958-12-23 California Research Corp Acid-neutralizing lubricating oil compositions
US2878185A (en) * 1955-07-26 1959-03-17 California Research Corp Filter aid for preparing dispersions in lubricating oil
US2937991A (en) * 1956-12-19 1960-05-24 Continental Oil Co Method of dispersing calcium carbonate in a non-volatile carrier
US2944023A (en) * 1957-01-15 1960-07-05 Socony Mobil Oil Co Inc Anticorrosive marine diesel lubricant
US2945812A (en) * 1958-09-30 1960-07-19 Frank A Stuart Filterable dispersion of glycoxides in lubricating oils
US2950960A (en) * 1957-02-21 1960-08-30 California Research Corp Hyrocarbon fuels
US2952636A (en) * 1955-04-22 1960-09-13 Shell Oil Co Associates of inorganic metal compounds with copolymers containing a plurality of hydroxy groups
US2956018A (en) * 1955-07-01 1960-10-11 Continental Oil Co Metal containing organic compositions and method of preparing the same
US2964473A (en) * 1956-12-24 1960-12-13 Standard Oil Co Additive for minimizing cold sludge formation and lubricating oil containing the same
US2964474A (en) * 1956-12-31 1960-12-13 Standard Oil Co Lubricating oil resistant to cold sludge formation
US2975131A (en) * 1956-04-09 1961-03-14 California Research Corp Silver non-corrosive lubricants
US3003965A (en) * 1953-09-29 1961-10-10 Philips Corp Method of preparing a magnetic sound carrier
US3018172A (en) * 1957-05-13 1962-01-23 Continental Oil Co Aluminum-containing additive for fuel oil compositions and method of preparing the same
US3021280A (en) * 1956-12-17 1962-02-13 Continental Oil Co Method of dispersing barium hydroxide in a non-volatile carrier
US3032501A (en) * 1958-12-29 1962-05-01 California Research Corp Lubricating oil composition containing oxyalkylated carbonated basic sulfonate
US3095374A (en) * 1957-04-25 1963-06-25 Gulf Oil Corp Lubricating composition
US3268445A (en) * 1962-12-14 1966-08-23 Gulf Research Development Co Lubricating composition having improved thermal stability
US3277002A (en) * 1961-07-17 1966-10-04 Continental Oil Co Process for stably dispersing metal compounds
US3294683A (en) * 1963-02-07 1966-12-27 Shell Oil Co Grease composition
US3361669A (en) * 1964-04-29 1968-01-02 Shell Oil Co Process for lubricating diesel engines having dual lubricating systems
US3676342A (en) * 1969-12-01 1972-07-11 Exxon Research Engineering Co Lubricant for textile machinery
US3819521A (en) * 1971-06-07 1974-06-25 Chevron Res Lubricant containing dispersed borate and a polyol
US4172803A (en) * 1976-10-21 1979-10-30 Terumo Corporation Liquid separating composition and apparatus for applying said composition
US4410446A (en) * 1979-06-07 1983-10-18 Petrolite Corporation Zinc oxide dispersions by decomposition of zinc acetate
US4755308A (en) * 1986-02-10 1988-07-05 Dow Corning Gmbh High temperature screw lubricating paste
WO2003044138A3 (en) * 2001-06-29 2003-11-06 Lubrizol Corp Lubricant based on a water in oil emulsion with a suspended solid base
WO2003089550A3 (en) * 2001-06-29 2004-02-19 Lubrizol Corp Stable dispersions of oil-insoluble compounds in hydrocarbons for use in lubricants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437240B1 (fr) * 1978-09-26 1988-07-29 Ihara Chemical Ind Co Dispersion en solvant organique inerte d'un hydroxyde alcalin et reaction utilisant cette dispersion

Citations (5)

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US2043638A (en) * 1933-07-15 1936-06-09 Lubriplate Corp Lubricant
US2079051A (en) * 1933-03-15 1937-05-04 Standard Oil Co Lubricating oil
US2285453A (en) * 1940-04-09 1942-06-09 Lubriplate Corp Lubricant
US2470913A (en) * 1945-09-26 1949-05-24 Bee Chemical Co A coolant for metal machining processes
US2485861A (en) * 1945-10-01 1949-10-25 Sumner E Campbell Lubricating oil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079051A (en) * 1933-03-15 1937-05-04 Standard Oil Co Lubricating oil
US2043638A (en) * 1933-07-15 1936-06-09 Lubriplate Corp Lubricant
US2285453A (en) * 1940-04-09 1942-06-09 Lubriplate Corp Lubricant
US2470913A (en) * 1945-09-26 1949-05-24 Bee Chemical Co A coolant for metal machining processes
US2485861A (en) * 1945-10-01 1949-10-25 Sumner E Campbell Lubricating oil

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742427A (en) * 1953-06-08 1956-04-17 Socony Mobil Oil Co Inc Lubricating oil containing dispersed magnesium
US2758085A (en) * 1953-06-08 1956-08-07 Socony Mobil Oil Co Inc Method for incorporating oil-insoluble, solid addition agents in mineral oils
US3003965A (en) * 1953-09-29 1961-10-10 Philips Corp Method of preparing a magnetic sound carrier
US2781314A (en) * 1953-12-29 1957-02-12 Exxon Research Engineering Co Oil compositions containing solid particles
US2850450A (en) * 1954-01-04 1958-09-02 California Research Corp Crankcase lubricant for spark ignition engines
US2952636A (en) * 1955-04-22 1960-09-13 Shell Oil Co Associates of inorganic metal compounds with copolymers containing a plurality of hydroxy groups
US2956018A (en) * 1955-07-01 1960-10-11 Continental Oil Co Metal containing organic compositions and method of preparing the same
US2865857A (en) * 1955-07-13 1958-12-23 California Research Corp Acid-neutralizing lubricating oil compositions
US2878185A (en) * 1955-07-26 1959-03-17 California Research Corp Filter aid for preparing dispersions in lubricating oil
US2975131A (en) * 1956-04-09 1961-03-14 California Research Corp Silver non-corrosive lubricants
US3021280A (en) * 1956-12-17 1962-02-13 Continental Oil Co Method of dispersing barium hydroxide in a non-volatile carrier
US2937991A (en) * 1956-12-19 1960-05-24 Continental Oil Co Method of dispersing calcium carbonate in a non-volatile carrier
US2964473A (en) * 1956-12-24 1960-12-13 Standard Oil Co Additive for minimizing cold sludge formation and lubricating oil containing the same
US2964474A (en) * 1956-12-31 1960-12-13 Standard Oil Co Lubricating oil resistant to cold sludge formation
US2944023A (en) * 1957-01-15 1960-07-05 Socony Mobil Oil Co Inc Anticorrosive marine diesel lubricant
US2950960A (en) * 1957-02-21 1960-08-30 California Research Corp Hyrocarbon fuels
US3095374A (en) * 1957-04-25 1963-06-25 Gulf Oil Corp Lubricating composition
US3018172A (en) * 1957-05-13 1962-01-23 Continental Oil Co Aluminum-containing additive for fuel oil compositions and method of preparing the same
US2945812A (en) * 1958-09-30 1960-07-19 Frank A Stuart Filterable dispersion of glycoxides in lubricating oils
US3032501A (en) * 1958-12-29 1962-05-01 California Research Corp Lubricating oil composition containing oxyalkylated carbonated basic sulfonate
US3277002A (en) * 1961-07-17 1966-10-04 Continental Oil Co Process for stably dispersing metal compounds
US3268445A (en) * 1962-12-14 1966-08-23 Gulf Research Development Co Lubricating composition having improved thermal stability
US3294683A (en) * 1963-02-07 1966-12-27 Shell Oil Co Grease composition
US3361669A (en) * 1964-04-29 1968-01-02 Shell Oil Co Process for lubricating diesel engines having dual lubricating systems
US3676342A (en) * 1969-12-01 1972-07-11 Exxon Research Engineering Co Lubricant for textile machinery
US3819521A (en) * 1971-06-07 1974-06-25 Chevron Res Lubricant containing dispersed borate and a polyol
US4172803A (en) * 1976-10-21 1979-10-30 Terumo Corporation Liquid separating composition and apparatus for applying said composition
US4230584A (en) * 1976-10-21 1980-10-28 Terumo Corporation Liquid separating composition and apparatus for applying said composition
US4410446A (en) * 1979-06-07 1983-10-18 Petrolite Corporation Zinc oxide dispersions by decomposition of zinc acetate
US4755308A (en) * 1986-02-10 1988-07-05 Dow Corning Gmbh High temperature screw lubricating paste
WO2003044138A3 (en) * 2001-06-29 2003-11-06 Lubrizol Corp Lubricant based on a water in oil emulsion with a suspended solid base
WO2003089550A3 (en) * 2001-06-29 2004-02-19 Lubrizol Corp Stable dispersions of oil-insoluble compounds in hydrocarbons for use in lubricants
US20040235684A1 (en) * 2001-06-29 2004-11-25 Cook Stephen J. Lubricant from water in oil emulsion with suspended solid base
US7651984B2 (en) 2001-06-29 2010-01-26 The Lubrizol Corporation Lubricant from water in oil emulsion with suspended solid base

Also Published As

Publication number Publication date
NL82973C (en, 2012)
BE505425A (en, 2012)
DE1002491B (de) 1957-02-14
GB718714A (en) 1954-11-17

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