EP0155131B1 - Composition de graisse contenant un composé de bore et un savon contenant un substituant hydroxyle comme agent épaississant - Google Patents

Composition de graisse contenant un composé de bore et un savon contenant un substituant hydroxyle comme agent épaississant Download PDF

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Publication number
EP0155131B1
EP0155131B1 EP85301462A EP85301462A EP0155131B1 EP 0155131 B1 EP0155131 B1 EP 0155131B1 EP 85301462 A EP85301462 A EP 85301462A EP 85301462 A EP85301462 A EP 85301462A EP 0155131 B1 EP0155131 B1 EP 0155131B1
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EP
European Patent Office
Prior art keywords
composition according
sulfur
group
grease
phosphorus
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
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EP85301462A
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German (de)
English (en)
Other versions
EP0155131A2 (fr
EP0155131A3 (en
Inventor
John Phillips Doner
Andrew Gene Horodysky
John Antone Keller, Jr.
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.)
ExxonMobil Oil Corp
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Mobil Oil Corp
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Publication date
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Priority to AT85301462T priority Critical patent/ATE55406T1/de
Publication of EP0155131A2 publication Critical patent/EP0155131A2/fr
Publication of EP0155131A3 publication Critical patent/EP0155131A3/en
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Publication of EP0155131B1 publication Critical patent/EP0155131B1/fr
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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
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/06—Mixtures of thickeners and additives
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/06—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having more than one carboxyl group bound to an acyclic carbon atom or cycloaliphatic carbon atom
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M133/08—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C—CHEMISTRY; METALLURGY
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    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
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    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/124—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof
    • C10M2207/1245—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof used as thickening agent
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/18—Tall oil acids
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    • 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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    • 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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    • C10M2215/086—Imides
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/10—Amides of carbonic or haloformic acids
    • C10M2215/102—Ureas; Semicarbazides; Allophanates
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    • 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
    • C10M2215/227—Phthalocyanines
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    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
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    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/16—Groups 8, 9, or 10

Definitions

  • the invention is concerned with the novel group of compositions. It more particularly relates to a synergistic grease composition comprising oil, hydroxy-containing soap thickener and borated amine, and optionally containing phosphorus and sulfur moieties.
  • US Patents, 3125523; 3125524 and 3125525 disclose lubricating greases thickened with hydroxy fatty acid soaps and comprising salts formed from amines and borate esters.
  • the present invention seeks to provide lubricating greases of improved dropping point.
  • the alkyl borates include the mono-, di- and trialkyl borates, i.e., those having the methyl, ethyl, propyl, butyl, pentyl and hexyl groups.
  • the amine is overborated.
  • overborated is meant the presence in the borated product of more than a stoichiometric amount of boron with respect to the amine.
  • the primary amines such as hexylamine, octylamine, nonylamine, decylamine, dodecylamine, tetradecylamine, octadecylamine, eicosylamine, triacontylamine, oleylamine, stearylamine, isostearylamine, tallowamine and soyamine
  • the secondary amines corresponding to (1) having both groups the same or having mixtures of such groups
  • the corresponding tertiary amines where again all the groups in the same molecule can be the same or different
  • diamines such as N-octyl-1,2-ethylenediamine or the N-octyl-1,3-propylenediamine, N-coco-1,2-ethylenediamine or the N-coco-1,3-propylenediamine, N-oleyl-1,2-ethylenediamine
  • Alkoxylated amines included are bis(2-hydroxyethyl)olelylamine, bis(2-hydroxypropyl)oleylamine, bis(2-hydroxyethyl)tallowamine, bis(2-hydroxypropyl)tallowamine, (hydroxyethyl)(hydroxypropyl)tallowamine, polyethoxylated oleylamine (containing 7 ethoxy groups) and polyethoxylated tallowamine (containing 3 ethoxy groups). Included also are hydroxyalkyl amines made by the ethoxylation or propoxylation of hydrocarbyldiamines or hydrocarbyltriamines.
  • the reaction to form the condensation product (iii) can be carried out at from about 80°C to about 260°C, preferably from about 110°C to about 180°C.
  • the temperature chosen will depend for the most part on the particular reactants and on whether or not a solvent is used.
  • Reaction pressures can be vacuum, atmospheric or positive pressure.
  • quantities of reactants be chosen such that the molar ratio of amine to boric acid be from about 0.2 to about 2, preferably from about 0.5 to about 0.9.
  • the amine can be reacted with an excess of the boric acid to form a condensation product containing from about 0.1% by weight of boron to as much as 10% or more of boron.
  • reaction can be advantageously run at from about 1 to about 5 atmospheres.
  • a solvent may be used.
  • any relatively non-polar, unreactive solvent can be used, including benzene, toluene, xylene and 1,4-dioxane.
  • Other hydrocarbon and alcoholic solvents which include propanol, butanol, hexamethylene glycol and the like, can be used. Mixtures of alcoholic and hydrocarbon solvents can also be used.
  • any phase of the process can be carried out from about 1 to about 20 hours.
  • a narrow class of thickening agents is preferred to make the grease of this invention. Included among the preferred thickening agents are those containing at least a portion of alkali metal, alkaline earth metal or amine soaps of hydroxy-containing fatty acids, fatty glycerides and fatty esters having from 12 to about 30 carbon atoms per molecule.
  • the metals are typified by sodium, lithium, calcium and barium. Preferred is lithium.
  • Preferred members among these acids and fatty materials are 12-hydroxystearic acid and glycerides and esters containing 12-hydroxystearates, 14-hydroxystearic acid, 16-hydroxystearic acid and 6-hydroxystearic acid.
  • thickener need not be derived from the aforementioned preferred members. Significant benefit can be attained using as little thereof as about 15% by weight of the total thickener.
  • a complementary amount, i.e., up to about 85% by weight of a wide variety of thickening agents can be used in the grease of this invention. Included among the other useful thickening agents are alkali and alkaline earth metals soaps of methyl-12-hydroxystearate, diesters of a C 4 to C 12 dicarboxylic acid and tall oil or marine oil fatty acids. Other alkali or alkaline earth metal fatty acids containing from 12 to 30 carbon atoms and no free hydroxyl may be used. These include soaps of stearic and oleic acids.
  • thickening agents include salt and salt-soap complexes as calcium stearate-acetate (U.S. Patent No. 2,197,263), barium stearate acetate (U.S. Patent No. 2,564,561), calcium, stearate-caprylate-acetate complexes (U.S. Patent No. 2,999,065), calcium carpylate-acetate (U.S. Patent No. 2,999,066) and calcium salts and soaps of low-, intermediate- and high-mblecular weight acids of nut oil acids.
  • salt and salt-soap complexes as calcium stearate-acetate (U.S. Patent No. 2,197,263), barium stearate acetate (U.S. Patent No. 2,564,561), calcium, stearate-caprylate-acetate complexes (U.S. Patent No. 2,999,065), calcium carpylate-acetate (U.S. Patent No. 2,999,066) and calcium salts and soap
  • thickening agents comprises substituted ureas, phthalocyamines, indanthrene, pigments such as perylamides, pyromellitdiimides, and ammeline, as well as certain hydrophobic clays.
  • These thickening agents can be prepared from clays which are initially hydrophilic in character, but which have been converted into a hydrophobic condition by the introduction of long-chain hydrocarbon radicals into the surface of the clay particles prior to their use as a component of a grease composition, as, for example, by being subjected to a preliminary treatment with an organic cationic surface active agent, such as an onium compound.
  • Typical onium compounds are tetraalkylammonium chlorides, such as dimethyl dioctadecyl ammonium chloride, dimethyl dibenzyl ammonium chloride and mixtures thereof. This method of conversion, being well known to those skilled in the art, is believed to require no further discussion, and does not form a part of the present invention.
  • Manufacture of the thickening agents can be done in a variety of grease making equipment such as in open kettles at reduced, atmospheric, or positive pressures; in higher pressure reaction chambers which may be operated to as high as 180 psig; or in continuous manufacturing equipment.
  • the temperature range from the bulk grease under manufacture can range from 15°C (60°F) to 238°C (460°F).
  • the third member(s) that may be present in the grease composition are the phosphorus and sulfur moities. Both of these can be present in the same molecule, such as in a metal or non-metal phosphorodithioate of the formula wherein R 6 is a hydrocarbyl group containing 3 to 18 carbon atoms, M is a metal or non-metal, n is the valence of M and Z is oxygen or sulfur, at least one Z being sulfur.
  • R 6 is preferably an alkyl group and may be a propyl, butyl, pentyl, hexyl, octyl, decyl, dodecyl, tetradecyl or octadecyl group, including those derived from propanol, isopropanol, butanol, isobutanol, sec-butanol, 4-methyl-2-pentanol, 2-ethylhexanol, oleyl alcohol, and mixtures thereof. Further included are alkaryl groups such as butylphenyl, octylphenyl, nonylphenyl and dodecylphenyl groups.
  • the metals covered by M include those in Groups IA, IIA, IIB and VIII of the Periodic Table. Some that may be mentioned are lithium, molybdenum, sodium, calcium, zinc, cadmium, silver and gold.
  • Non- metallic ions include organic groups derived from vinyl esters such as vinyl acetate, vinyl ethers such as butyl vinyl ether, epoxides such as propylene oxide and 1,2-epoxydodecane and amine salts. They also include other nitrogenous compounds such as those derived from hydrocarbyl amines and diamines, including oleylamine and N-oleyl-1,3-propylenediamine and such as the imidazolines and oxazolines.
  • the phosphorus and sulfur can also be supplied from the combination of two separate compounds, such as the combination of (1) a dihydrocarbyl phosphite having 2 to 10 carbon atoms in each hydrocarbyl group or mixtures of phosphites and (2) a sulfide such as sulfurized isobutylene, dibenzyl sulfide, sulfurized terpenes, phosphorodithionyl disulfide and sulfurized jojoba oil.
  • the phosphites embrace the dibutyl, dihexyl, dioctyl, didecyl and similar phosphites.
  • Phosphate esters containing 4 to 20 carbon atoms in each hydrocarbyl group such as tributyl phosphate, tridecyl phosphate, tricresyl phosphate and mixtures of such phosphates, can also be used.
  • the greases of the present invention can be made from either a mineral oil or a synthetic oil, or mixtures thereof.
  • mineral oils both paraffinic, naphthenic and mixtures thereof, may be of any suitable lubricating viscosity range, as for example, from about 45 SSU at 100°F to about 6000 SSU at 100°F, and preferably from about 50 to about 250 SSU at 210°F.
  • These oils may have viscosity indexes ranging up to about 100 or higher. Viscosity indexes from about 70 to about 95 are preferred.
  • the average molecular weights of these oils may range from about 250 to about 800.
  • the lubricating oil from which it is prepared is generally employed in an amount sufficient to balance the total grease composition, after accounting for the desired quantity of the thickening agent, and other additive components to be included in the grease formulation.
  • Typical synthetic vehicles include polyisobutylene, polybutenes, hydrogenated polydecenes, polypropylene glycol, polyethylene glycol, trimethylol propane esters, neopentyl and pentaerythritol esters, di(2-ethylhexyl) sebacate, di(2-ethylhexyl) adipate, dibutyl phthalate, fluorocarbons, silicate esters, silanes, este'f's of phosphorus-containing acids, liquid ureas, ferrocene derivatives, hydrogenated synthetic oils, chain-type polyphenyls, siloxanes and silicones (polysiloxanes), alkyl-substituted diphenyl esters typified by a butyl-substituted bis(p-phenoxy phenyl) ether, phenoxy phenylethers
  • the metallic soap grease compositions containing one or more of the borated amines, and optionally, one or more of the sulfur and phosphorus combinations described herein provide advantages in increased dropping point, improved grease consistency properties, antirust characteristics and potential antifatigue, antiwear and antioxidant benefits unavailable in prior greases.
  • the grease of this invention is unique in that it can be preferably manufactured by the admixture of additive quantities of the alcohol borates to the fully formed soap grease after completion of saponification.
  • N-tallow-1,3-propylenediamine obtained as Duomeen T obtained from Armak Chemical Co.
  • boric acid as generally described in Example 1.
  • the borated N-tallow-1,3-propylenediamine was blended with an equal wt. of 100 second process oil to form a 50% concentrate in mineral oil.
  • a lithium hydroxystearate grease thickener was prepared by saponification of a mixture containing 12-hydroxystearic acid (8%) and the glyceride thereof (9%) with lithium hydroxide in a mineral oil vehicle at about 177°C in a closed contactor.
  • Example 4 To the base grease of Example 4, was added at about 115°C, 1.0 wt.% of the borated N-tallow-1,3-propylenediamine of Example 2.
  • Example 4 50 wt.% of the base grease used in Example 4 plus 50 wt.% of the grease of Example 9, producing a 50-50 mixture of hydroxy- and non-hydroxy-containing thickeners.
  • Examples 7 and 8 show a significant effect upon hydroxy-containing carboxylate soap thickened grease when the borated amines described are used.

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Claims (25)

1. Une composition de graisse améliorée, caractérisée en ce qu'elle comprend:
i. une proportion majeure d'une graisse servant de véhicule;
ii. un agent épaississant qui contient au moins 15% en poids d'un savon ayant un substituant hydroxy en tant qu'agent épaississant; et
iii. de 0,01% à 10% en poids d'un produit de condensation obtenu par réaction d'acide borique avec une amine de formule:
Figure imgb0010
dans laquelle
x a une valeur de 0 à 2;
R, R', R3 ou R4 qui peuvent être identiques ou différents, représentent chacun un atome d'hydrogène ou un groupe hydrocarbyle en C1-30, un groupe hydroxyalkyle en C2-4, un groupe polyalcoxylé en ce C6-zo pouvant comprendre du soufre ou de l'oxygène supplémentaire, à condition qu'au moins l'une des R, R', R3 ou R4 ne soit pas un atome d'hydrogène; et R2 représente un groupe alkylène en C2-4.
2. Une composition suivant la revendication 1, caractérisée en ce qu'elle contient de plus d'environ de 0,01 à 10% en poids d'un composé contenant à la fois des entités phosphore et soufre, ou d'un mélange de composés contenant du phosphore et contenant du soufre pour fournir une quantité équivalente de phosphore et de soufre.
3. Une composition suivant les revendications 1 ou 2, caractérisée en ce que l'agent épaississant est un savon de métal alcalin, métal alcalino-terreux ou d'amine d'un acide gras, glycéride gras ou ester gras ayant un substituant hydroxy, contenant 12 à 30 atomes de carbone.
4. Une composition suivant la revendication 3, caractérisée en ce que le métal est le sodium, le lithium, le calcium ou le baryum.
5. Une composition suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que l'agent épaississant provient de l'acide 12-hydroxystéarique, de l'acide 14-hydroxystéarique, de l'acide 16-hydroxystéarique, de l'acide 6-hydroxystéarique ou du glycéride ou d'un ester de ceux-ci.
6. Une composition suivant l'une quelconque des revendications 1 à 5, caractérisée en ce que R, R', R3 ou R4 qui peuvent être identiques ou différents, représentent chacun un aome d'hydrogène ou un groupe alkyle en C6-20, à condition qu'au moins l'un des R, R', R3 ou R4 ne soit pas un atome d'hydrogène.
7. Une composition suivant l'une quelconque des revendications 1 à 6, caractérisée en ce que l'amine est (1) l'hexylamine, l'octylamine, la nonylamine, la décylamine, la dodécylamine, la tétradécylamine, l'octadécylamine, l'éicosylamine, la triacontylamine, l'oléylamine, la stéarylamine, l'isostéarylamine, la suif-amine et la soja-amine, (2) les amines secondaires correspondant à (1) ayant deux groupes identiques ou des mélanges de ces groupes, (3) les amines tertiaires correspondantes dans lesquelles tous le groupes dans le même molécule sont identiques ou différents ou (4) la N-octyl-1,2-éthylènediamine ou la N-octyl-1,3-propylènediamine, la N-coco-1,2-éthylènediamine ou la N-coco-1,3-propylènediamine, la N-oléyl-1,2- éthylènediamine ou la N-oléyl-1,3-propylènediamine, la N-soja-1,2-éthylènediamine ou la N-soja-1,3-propylènediamine, la N-suif-1,2-éthylènediamine ou la N-suif-1,3-propylènediamine, la N-éthyl-N-oléylamine, la N-méthyl-N-soja-amie, la N,N-diéthyl-N-oléylamine, la bis(2-hydroxyéthyl)-oléylamine, la bis(2-hydroxypropyl)-oléylamine, la bis(2-hydroxyéthyl)-sulfamine, la bis(2-hydroxypropyl)-suifamine, l'(hydroxyéthyl)-(hydroxypropyl)-suifamine, une oléylamine polyéthoxylée contenant 7 groupes éthoxy, une suifamine polyéthoxylée contenant 3 groupes éthoxy, des hydroalkylamines faites par éthoxylation ou propoxylation d'hydrocarbyldiamines ou d'hydrocarbyltriamines, la dodécyloxypropylamine ou la triisodécyloxypropylamine.
8. Une composition suivant l'une quelconque des revendications 1 à 6, caractérisée en ce que les entités DhosDhore et soufre sont fournies par un phosphorodithioate de formule
Figure imgb0011
dans laquelle R6 est un groupe hydrocarbyle contenant 3 à 18 atomes de carbone, M est un métal ou un non métal, n est la valence M et Z est un atome d'oxygène ou de soufre, l'un au moins des Z étant un atome de soufre.
9. Une composition suivant la revendication 8, caractérisée en ce que R6 est un groupe alkyle ou alkaryle.
10. Une composition suivant la revendication 9, caractérisée en ce que R6 est un groupe propyle, butyle, pentyle, hexyle, octyle, dodécyle, tétradécyle, tétradécyle, octadécyle, butylphényle, octylphényle, nonylphényle, dodécylphényle ou oléyle ou un mélange de ceux-ci.
11. Une composition suivant la revendication 10, caractérisée en ce que R6 dérive du propanol, de l'isopropanol, du butanol, de l'isobutanol, du sec-butanol, du 4-méthyl-2-pentanol, du 2-éthylhexanol et d'une mélange de ceux-ci.
12. Une composition suivant l'une quelconque des revendications 8 à 11, caractérisée en ce que le métal provient des Groupes IA, IIA, IIB et VIII du Tableau Périodique.
13. Une composition suivant la revendication 12, caractérisée en ce que le métal est le lithium, le molybdène, le sodium, le calcium, le zinc, le cadmium, l'argent ou l'or.
14. Une composition suivant l'une quelconqe des revendications 8 à 11, caractérisée en ce que M dérive de l'acétate de vinyle, du butyle vinyl éther, de l'oxyde de propylèné, du 1,2-époxydodécane ou d'un composé azoté.
15. Une composition suivant l'une quelconque des revendications 1 à 7, caractérisée en ce que les entités phosphore et soufre sont fournies par une combinaison comprenant (1) un phosphite de dihydrocarbyle ayant 2 à 10 atomes de carbone dans chaque groupe hydrocarbyle, des mélanges de phosphites ou un phosphate ayant 4 à 20 atomes de carbone dans chaque groupe hydrocarbyle et (2) un sulfure choisi parmi l'isobutylène sulfuré, le disulfure de dibenzyle, des terpènes sulfurés, le disulfire de phosphorodithionyle et une huile de jojoba sulfurée.
16. Une composition suivant la revendication 15, caractérisée en ce que le phosphite est un phosphite de dibutyle, dihexyle, dioctyle ou didécyle ou un mélang de ceux-ci.
17. Une composition suivant la revendication 15, caractérisée en ce que le phosphate est un phosphate de tributyle, tridécyle ou tricrésyle ou un mélange de ceux-ci.
18. Une composition suivant la revendication 1, caractérisée en ce que l'amine est la N-oléyl-1,3-propylènediamine, l'agent épaississant est un 12-hydroxystéarate et le phosphore et le soufre sont fournis par un alkyl (en C3_6)-phosphorodithioate de zinc.
19. Une composition suivant la revendication 1, caractérisée en ce que l'amine est la N-suif-1,3-propylènediamine, le composé du bore est l'acide borique l'agent épaississant est du 12-hydroxystéarate de lithium et les entités phosphore et soufre sont fournies par un alkyl(en C3-6)-phosphorodithioate de zinc.
20. Une composition suivant l'une quelconque des revendications 1 à 19, caractérisée en ce que la graisse utilisée comme véhicule est une huile minérale.
21. Une composition suivant l'une quelconque des revendications 1 à 19, caractérisée en ce que la graisse utilisée comme véhicule est une huile synthétique.
22. Une composition suivant les revendications 20 et 21, caractérisée en ce que la graisse utilisée comme véhicule est un mélange d'huile synthétique et d'huile minérale.
23. Une composition suivant l'une quelconque des revendications 1 à 22, caractérisée en ce que la quantité totale d'agent épaississant est comprise entre environ 3 et 20% en poids de la composition total de graisse.
24. Procédé pour améliorer le point de goutte d'une composition de graisse comprenant une proportion majeure d'une graisse servant de véhicule et d'environ 0,01% à 10% en poids d'un produit de condensation obtenu par réaction d'un composé du bore avec une amine de formule:
Figure imgb0012
dans laquelle
x a une valeur de 0 à 2; R, R', R3 ou R4 représentent chacun un atome d'hydrogène ou un groupe hydrocarbyle en C1-30, un groupe hydroxyalkyle en C2-4, un groupe polyalcoxylé en C6-20, ce dernier pouvant comprendre du soufre ou de l'oxygène supplémentaire, au moins l'un des R', R3 ou R4 n'étant pas un atome d'hydrogène et R2 représente un groupe alkylène CZ-4, caractérisée en ce que cette graisse est épaissie avec un agent épaississant contenant au moins 15% en poids d'un savon contenant un substituant hydroxy en tant qu'agent épaississant.
25. Procédé suivant la revendication 24, caractérisé en ce que la composition de graisse contient de plus, d'environ 0,01% à 10% en poids d'un composé contenant à la fois du phosphore et du soufre ou un mélange de composés contenant du phosphore et contenant du soufre pour fournir une quantité équivalente de phosphore et de soufre.
EP85301462A 1984-03-07 1985-03-05 Composition de graisse contenant un composé de bore et un savon contenant un substituant hydroxyle comme agent épaississant Expired - Lifetime EP0155131B1 (fr)

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US4822505A (en) * 1987-07-31 1989-04-18 Exxon Research And Engineering Company Load-carrying grease
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US3125524A (en) * 1964-03-17 Lubricating greases containing salts of
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US3125525A (en) * 1964-03-17 Lubricating greases containing borate
BE780687A (fr) * 1972-03-15 1972-07-03 Labofina Sa Graisses lubrifiantes.
US3940339A (en) * 1975-01-21 1976-02-24 Exxon Research & Engineering Co. Lithium borate complex grease exhibiting salt water corrosion resistance
CA1097319A (fr) * 1977-03-14 1981-03-10 John H. Adams Graisse contenant des borates comme additifs extreme- pression
US4382006A (en) * 1979-11-06 1983-05-03 Mobil Oil Corporation Friction reduction additives and compositions thereof
US4328113A (en) * 1980-01-14 1982-05-04 Mobil Oil Corporation Friction reducing additives and compositions thereof
AU549639B2 (en) * 1981-07-01 1986-02-06 Chevron Research Company Lubricating oil composition to improve fuel economy
GB2106133B (en) * 1981-09-22 1985-01-09 Chevron Res Method of reducing brake chatter of oil immersed disc brakes
JPS58125794A (ja) * 1982-01-21 1983-07-26 Showa Shell Sekiyu Kk 音響特性が改善された高滴点リチウムコンプレツクスグリ−ス組成物
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