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EP0151859B1 - Fettzusammensetzung - Google Patents

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Publication number
EP0151859B1
EP0151859B1 EP84306857A EP84306857A EP0151859B1 EP 0151859 B1 EP0151859 B1 EP 0151859B1 EP 84306857 A EP84306857 A EP 84306857A EP 84306857 A EP84306857 A EP 84306857A EP 0151859 B1 EP0151859 B1 EP 0151859B1
Authority
EP
European Patent Office
Prior art keywords
composition
monooleate
grease
ester
carbon atoms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP84306857A
Other languages
English (en)
French (fr)
Other versions
EP0151859A2 (de
EP0151859A3 (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.)
Mobil Oil AS
ExxonMobil Oil Corp
Original Assignee
Mobil Oil AS
Mobil Oil Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mobil Oil AS, Mobil Oil Corp filed Critical Mobil Oil AS
Priority to AT84306857T priority Critical patent/ATE77644T1/de
Publication of EP0151859A2 publication Critical patent/EP0151859A2/de
Publication of EP0151859A3 publication Critical patent/EP0151859A3/en
Application granted granted Critical
Publication of EP0151859B1 publication Critical patent/EP0151859B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • 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
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    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/02—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
    • C10M117/04—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen containing hydroxy groups
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    • C10M135/02—Sulfurised compounds
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    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
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    • C10M137/04—Phosphate esters
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    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • C10M2227/062—Cyclic esters
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/063—Complexes of boron halides
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/065—Organic compounds derived from inorganic acids or metal salts derived from Ti or Zr
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/12—Groups 6 or 16

Definitions

  • This invention relates to grease compositions. More particularly, it relates to grease compositions comprising oils, hydroxy-containing soap thickener and borated hydroxy-containing esters; and optionally containing phosphorus and sulfur moities.
  • U.S. Patent 2943054 discloses a lubricating grease consisting essentially of mineral lubricating oil thickened with about 3% to about 30% by weight of barium 12-hydroxystearate and containing a small amount, sufficient to impart good mechanical stability and reversibility characteristics to said grease, of the reaction product, obtained by heating to a temperature between about 215°F and about 425°F, of orthoboric acid and an ester selected from the class consisting of glycol and polyglycol, mono and di-esters of hydroxy fatty acids having 8 to 50 carbon atoms and glycerol mono, di and tri-esters of hydroxy fatty acids having 8 to 50 carbon atoms.
  • the present invention seeks to provide a grease composition having improved dropping point characteristics.
  • an improved grease composition containing a major proportion of a grease, from 0.01% to 10% by weight of a reaction product made by reacting an ester of the formula: R(COOR1) n wherein is 1 to 5; and R and R1 represent, respectively, an n- or univalent hydrocarbyl or hydroxyhydrocarbyl group containing from 1 to 40 carbon atoms, preferably 8 to 20 carbon atoms, at least one of R or R1 being a hydroxyhydrocarbyl group with a boron compound which may be a metaborate or similar boron source, boric acid, boric oxide or an alkyl borate of the formula: (R2O) x B(OH) y wherein: R2 represents an alkyl group containing from 1 to 6 carbon atoms; and x is 1 to 3, y is 0 to 2, their sum being 3, and a thickener containing at least 15% by weight of lithium soap of a hydroxy-containing fatty acid
  • This invention also provides the use of a thickener containing at least 15% by weight of a lithium soap of a hydroxy-containing fatty acid, fatty glyceride or fatty ester containing 12 to 30 carbon atoms to improve the dropping point of a grease composition comprising a major proportion of a grease and from 0.01% to 10% by weight of a reaction product made by reacting and ester of the formula.
  • R(COOR1) n wherein n is 1 to 5 and R and R1 are hydrocarbyl or hydroxyhydrocarbyl groups containing 1 to 40 carbon atoms at least one of R and R1 being a hydroxyhydrocarbyl group with a boron compound.
  • Hydrocarbyl and hydroxyhydrocarbyl include alkyl, aryl, aralkyl, alkaryl and cycloalkyl groups.
  • the ester is overborated, meaning the presence in the product of more than stoichiometric amount of boron.
  • the esters may contain from 1 to 5 hydroxy groups in the molecule. They may all be attached to either R or R1 or they may be attached to R and R1 in varying proportions. Further, the hydroxy groups can be at any position or positions along the chain of R or R1. It will be understood that the esters contain at least one free hydroxy group prior to reaction with the boron compound.
  • esters can be made by methods well known in the art. In general, they are made by reacting the desired acid or acyl halide and alcohol at temperatures and for times one skilled in the art can easily select. To give an ester having a free hydroxy group either in R or R1, reactant proportions are chosen accordingly, as one skilled in the art will understand.
  • Suitable hydroxy-containing esters prior to boration include trimethylolpropane monooleate, trimethylolpropane dioleate, trimethylolpropane monostearate, trimethylolpropane distearate, trimethylolpropane monopelargonate, trimethylolpropane monooleate monopelargonate, pentaerylthritol monooleate, pentaerythritol dioleate, pentaerythritol trioleate, pentaerythritol monoisostearate, pentaerythritol monooleate monopelargonate, pentaerythritol monoisostearate, monopelargonate or monohexanoate, pentaerythritol tripelargonate, glycerol monooleate, glycerol dioleate, glycerol monostearate, glycerol monoricinoleate, g
  • the borated esters of the invention can be made by reacting an ester as defined above with a boron compound, such as boric oxide, a metaborate, boric acid, an alkyl borate or mixtures thereof.
  • a boron compound such as boric oxide, a metaborate, boric acid, an alkyl borate or mixtures thereof.
  • the resulting products are primarily borate esters, but other possible products present are the products of reaction between ester dimers, or higher oligomers, and a boron compound to form the corresponding borate esters.
  • the boron compound used is boric acid, boric oxide or an alkyl borate, preferably boric acid.
  • the alkyl borates include the mono-, di and trialkyl borates, such as the mono-, di- and trimethyl borates, mono-, di- and triethyl borates, mono-, di and tripropyl borates, mono-, di- and tributyl borates, mono-, di and tripentyl borates and mono-, di- and trihexyl borates.
  • the reaction to form the borate ester can be carried out at a temperature from 80°C to 260°C, preferably from 110°C to 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 the molar ratio of ester to boron compound be from 1 to 4, preferably from 1 to 2, or more preferably, of about 1.
  • the ester may be reacted with an excess of the borating species to form a borate ester containing from 0.1% by weight of boron to more than 10% of boron.
  • reaction can be advantageously run at from 1 to 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 soluents which include propanol, butanol, and hexamethyleneglycol can be used. Mixtures of alcoholic and hydrocarbon solvents can be used also.
  • reaction time is not critical. Thus, any phase of the process can be carried out in form 1 to 20 hours.
  • a narrow class of thickening agents is used to make the grease of this invention.
  • the thickening agents contain at least a portion of a lithium soap of a hydroxyl-containing fatty acid, fatty glyceride on fatty ester having from 12 to 30 carbon atoms per molecule.
  • Preferred members among these acids and fatty materials are 12-hydroxystearic acid, 14-hydroxystearic acid, 16-hydroxystearic acid, 6-hydroxystearic acid or a glyceride or ester thereof.
  • the entire amount of thickener need not be derived from the aforementioned members. Significant benefit can be attained using as little thereof as 15% by weight of the total thickener.
  • a complementary amount such as up to 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 metal soaps of methyl-12-hydroxystearate, diesters of a C4 to C12 dicarboxylic acid and tall 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.
  • Manufacture of the thickening agents can be done in a variety of grease-making equipment such as open kettles at reduced, atmospheric, or positive pressures; higher pressure reaction chambers which may be operated as high as 180 psig; or continuous manufacturing equipment.
  • the temperature range from the bulk grease under manufacture may range from 15°C (60°F) to 238°C (460°F).
  • 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. 2,999,066), and calcium salts and soaps of low-, intermediate-and high-molecular weight acids and 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. 2,999,066), and calcium salts and soaps of low-, intermediate-and high-molecular weight acids and of nut oil acids.
  • thickening agents comprises substituted ureas, phthalocyanines, indanthrene, pigments such as perylimides, 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 prior to their use as 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 is well known to those skilled in the art.
  • the third member(s) that may be present in the grease composition are the phosphorous and sulfur moieties. Both of these can be present in the same molecule, such as in a metal or non-metal phosphorodithioate of the formula wherein R3 is a hydrocarbyl group containing 3 to 18 carbon atoms, M is preferably a metal, but may be a non-metal, such as one of those mentioned hereinbelow, n is the valence of M and Z is oxygen or sulfur, at least one Z being sulfur.
  • R3 is preferably an alkyl group and may be a propyl, butyl, pentyl, hexyl, octyl, decyl, dodecyl, tetradecyl or octadecyl group, including those derived from isopropanol, propanol, butanol, isobutanol, secbutanol, 4-methyl-2-pentanol, 2-ethylhexanol, oleyl alcohol, and mixtures thereof. Further included are alkaryl groups such as butylphenyl, octylphenyl, nonylphenyl and dodecylphenyl groups.
  • Non-metallic ions include organic groups derived from vinyl esters such as vinyl acetate, vinyl ethers such as butyl vinyl ether and epoxides such as propylene oxide and 1,2-epoxydodecane.
  • the non-metallic ions may also be derived from 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 phosphorous 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 sulfurised isobutylene, dibenzyl disulfide, sulfurised terpenes, phosphorodithionyl disulfide and sulfurised jojoba oil.
  • the phosphites include 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 thickener will have at least 15% by weight of a metal or non-metal hydroxyl-containing soap therein, the total thickener being from 3% to 20% by weight of the grease composition.
  • the composition may have therein from 0.01% to 10% by weight, preferably from 0.2% to 2% by weight, of phosphorus and sulfur-containing compounds or a mixture of two or more compounds which separately supply the phosphorus and sulfur moieties. If separate compounds are used, an amount of the mixture equivalent to the above concentration levels is used to supply desired amounts of phosphorus and sulfur.
  • the broad invention is to a grease composition comprising the two components mentioned.
  • reaction products of the present invention may be employed in any amount which is effective for imparting the desired degree of friction reduction, antiwear activity, antioxidant activity, high temperature stability or antirust activity.
  • the borated esters and the phosphorus- and/or sulfur-containing compound(s) are effectively employed in combined amounts from 0.02% by weight, and preferably from 0.2% to 4% of the total weight of the composition.
  • 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 45 SSU at 37.8°C to 6000 SSU at 37.8°C, and preferably from 50 to 250 SSU at 99°C.
  • These oils may have viscosity indexes ranging to 100 or higher. Viscosity indexes from 70 to 95 are preferred.
  • the average molecular weights of these oils may range from 250 to 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, poly propylene glycol, polyethylene glycol, trimethylol propane esters, neopentyl and pentaerythritol esters, di(2-ethylhexy) sebacate, di-(2-ethylhexyl) adipate, dibutyl phthalate, fluorocarbons, silicate esters, silances, esters of phosphorus-containing acids, liquid ureas, ferrocene derivatives, hydrogenated synthetic oils, chain-type polyphenyls, siloxanes and silicones (polysiloxanes), alkyl-substituted diphenyl ethers typified by a butyl-substituted bis(p-phenoxy phenyl) ether, phenoxy phenylethers
  • the metallic soap grease compositions containing one or more of the borated hydroxy-containing ester 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 any of the prior greases now known.
  • the grease composition 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.
  • Glycerol monooleate consisting of a mixture of about 60% of glycerol monooleate and about 40% of glycerol dioleate, xylene (38 g) and butanol (122 g) were charged to a reactor equipped with a heater, an agitator and a condenser. The reactor contents were heated to 50°C, and boric acid (100 g) was charged to the ester and solvent. The reaction mixture was heated to 204°C and was held there for about 3 hours until water evolution ceased. The reactor contents were cooled to 155°C and vacuum (to less than 2 mm of Hg) was applied to remove the solvents. The crude product was further cooled to 105°C and it was then filtered through diatomaceous earth to yield a viscous, amber liquid.
  • 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 177°C in a closed contactor. After depressuring and dehydration of the thickener in an open kettle, sufficient mineral oil was added to reduce the thickener content to 9.0%. After cooling to 99°C, a typical grease additive package, consisting of an amine antioxidant, phenolic antioxidant, metallic dithiophospate, sulfur-containing metal deactivator and nitrogen containing antirust additives, was added. This produced a base grease for evaluating the effect of borated hydroxyl-containing esters on grease dropping point and other properties.
  • Example 3 To the grease of Example 3 was added 2 wt. % of the borated glycerol monooleate of Example 1. The addition was accomplished in a laboratory grease blender from 110°C to 116°C.
  • Example 2 Same as Example 4, except that 2 wt % of the borated glycerol monooleate of Example 2 was used.
  • Table I Sample D2265 Dropping Point, °C.
  • Base Grease A (Example 3) (containing amine antioxidant, phenolic antioxidant, 1.5 wt. % of zinc dialkyl phosphorodithioate, (where alkyl is derived from a mixture of C3 to C6 primary alcohols), and sulfur-containing metal deactivator and nitrogen containing antirust additives.
  • Example 4 Base grease A + 2.0 wt. % borated glycerol monooleate 240
  • Example 5 Base grease A + 2.0 wt.
  • Example 6 Base grease thickened with lithium and with lithium soap of a 50/50 (wt) mixture of stearic and palmitic acids 209
  • Example 7 50 wt. % of base grease A used in Examples 4 and 5 and 50 wt. % of base grease B of Example 6 190
  • Example 8 Base grease of Example 6 containing 2 wt. % of the borated glycerol monooleate of Example 1 207
  • Example 8 clearly shows no dropping point improvement when the borated ester is added to a non-hydroxy-containing carboxylate soap thickened grease.

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  • Chemical & Material Sciences (AREA)
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  • General Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Claims (17)

  1. Verfahren zur Herstellung einer verbesserten Fettzusammensetzung durch Formulieren eines größeren Anteils eines Fetts, 0,01 bis 10 Gew.-% eines Reaktionsprodukts aus einer Umsetzung eines Esters der Formel



            R(COOR¹)n



    worin n eine Zahl von 1 bis 5 sowie R und R¹ Hydrokohlenwasserstoff- oder Hydroxyhydrokohlenwasserstoffreste mit 1 bis 40 Kohlenstoffatomen bedeuten, wobei mindestens einer der Reste R und R¹ einen Hydroxyhydrokohlenwasserstoffrest bedeutet, mit einer Borverbindung, sowie eines Verdickungsmittels, das mindestens 15 Gew.-% einer Lithiumseife einer hydroxylgruppenhaltigen Fettsäure, eines Fettglycerids oder eines Fettesters mit 12 bis 30 Kohlenstoffatomen enthält, wobei der Tropfpunkt der Fettzusammensetzung mindestens 240°C beträgt.
  2. Verfahren nach Anspruch 1, wobei zusätzlich 0,01 bis 10 Gew.-% einer Phosphor- und Schwefelverbindung oder eines Gemisches aus einer phosphorhaltigen und einer schwefelhaltigen Verbindung einformuliert werden, um eine äquivalente Menge an Phosphor und Schwefel bereitzustellen.
  3. Verfahren nach Anspruch 1 oder 2, worin das Verdickungsmittel von 12-Hydroxystearinsäure, 14-Hydroxystearinsäure, 16-Hydroxystearinsäure, 6-Hydroxystearinsäure oder einem Glycerid oder Ester hiervon abgeleitet ist.
  4. Verfahren nach Anspruch 1, 2 und 3, worin R einen Alkyl-, Aryl-, Aralkyl-, Alkaryl- oder Cycloalkylrest oder einen solchen Rest, der hydroxysubstituiert ist, bedeutet.
  5. Verfahren nach Anspruch 4, worin der Ester Trimethylolpropanmonooleat, Trimethylolpropandioleat, Trimethylolpropanmonostearat, Trimethylolpropandistearat, Trimethylolpropanmonopelargonat, Trimethylolpropanmonooleatmonopelargonat, Pentaerythritmonooleat, Pentaerythritdioleat, Pentaerythrittrioleat, Pentaerythritmonoisostearat, Pentaerythritmonooleatmonopelargonat, Pentaerythritmonoisostearatmonopelargonat, Pentaerythritmonoisostearatmonohexanoat, Pentaerythrittripelargonat, Glycerinmonooleat, Glycerindioleat, Glycerinmonostearat, Glycerinmonoricinoleat, Glycerinmonoisostearat, Glycerinmonopelargonat, Glycerinmonohexadecanoat, Sorbitanmonooleat, Sorbitandioleat, Sorbitanmonostearat, Sorbitandistearat, Sorbitanmonopelargonat, Dipentaerythritmonooleat, Dipentaerythritdioleat, Dipentaerythrittrioleat, Ethylenglykolmonooleat, Ethylenglykolmonostearat, Ethylenglykolmonoisostearat, Diethylenglykolmonooleat, Diethylenglykolmonopelargonat, Diethylenglykolmonoisostearat und Triethylenglykolmonooleat, Methylhydroxystearat oder Ethylhydroxystearat ist.
  6. Verfahren nach Anspruch 1, 2, 3, 4 oder 5, worin die Borverbindung aus der Gruppe ausgewählt ist, die aus einem Metaborat, Borsäure, Mono-, Di- und Trimethylborat, Mono-, Di- und Triethylborat, Mono-, Di- und Tripropylborat, Mono-, Di- und Tributylborat, Mono-, Di- und Tripentylborat und Mono-, Di- und Trihexylborat besteht.
  7. Verfahren nach Anspruch 2, 3, 4, 5 oder 6, worin die Phosphor- und Schwefelgruppen durch ein Phosphorthioat der Formel
    Figure imgb0007
     worin R³ ein Hydrokohlenwasserstoffrest mit 3 bis 18 Kohlenstoffatomen, M ein Metall oder Nichtmetall, n eine Wertigkeit von M und Z Sauerstoff oder Schwefel bedeuten, wobei mindestens einer der Reste Z Schwefel darstellt, bereitgestellt werden.
  8. Verfahren nach Anspruch 7, worin R³ von Isopropanol, Butanol, Isobutanol, Sec.-Butanol, 4-Methyl-2-pentanol, 2-Ethylhexanol oder Gemischen hiervon abgeleitet ist.
  9. Verfahren nach Anspruch 7, worin M ein Metall der Gruppe IA, IIA, IIB oder VIII des Periodensystems bedeutet.
  10. Verfahren nach Anspruch 9, worin das Metall Lithium, Natrium, Molybdän, Calcium, Zink, Cadmium, Silber oder Gold ist.
  11. Verfahren nach Anspruch 7, worin M von Vinylacetat, Butylvinylether, Propylenoxid, 1,2-Epoxydodecan oder stickstoffhaltigen Verbindungen abgeleitet ist.
  12. Verfahren nach Anspruch 2, worin die Phosphor- und Schwefelgruppen durch eine Kombination aus (1) einem Dihydrokohlenwasserstoffphosphit mit 2 bis 6 Kohlenstoffatomen in jedem Kohlenwasserstoffrest, Gemischen solcher Phosphite oder einem Phosphatester mit 4 bis 20 Kohlenstoffatomen in jedem Hydrokohlenwasserstoffrest sowie (2) einem Sulfid, das aus sulforiertem Isobutylen, Dibenzyldisulfid, sulforierten Terpenen, Phosphorodithionyldisulfid und sulforiertem Jojobaöl ausgewählt ist, bereitgestellt werden.
  13. Verfahren nach Anspruch 12, worin das Phosphit ein Dibutyl-, Dihexyl-, Dioctyl- oder Didecylphosphit oder ein Gemisch hiervon ist.
  14. Verfahren nach Anspruch 12, worin der Phosphatester ein Tributyl-, Tridecyl- oder Tricresylphosphat oder ein Gemisch hiervon ist.
  15. Verfahren nach Anspruch 1, worin der Ester Glycerinmonooleat, die Borverbindung Borsäure und das Verdickungsmittel Lithium-12-hydroxystearat sind sowie die Phosphor- und Schwefelgruppen von einem Zinkdialkylphosphordithioat, worin der Alkylrest ein Gemisch aus Alkylresten mit 3 bis 6 Kohlenstoffatomen ist, stammen.
  16. Verfahren nach Anspruch 1, worin der Fettträger ein Mineralöl, ein synthetisches Öl oder ein Gemisch hiervon ist.
  17. Verwendung eines Verdickungsmittels, das mindestens 15 Gew.-% einer Lithiumseife einer hydroxylgruppenhaltigen Fettsäure, eines Fettglycerids oder eines Fettesters mit 12 bis 30 Kohlenstoffatomen enthält, um den Tropfpunkt einer Fettzusammensetzung zu verbessern, die einen größeren Anteil eines Fetts und 0,01 bis 10 Gew.-% eines Reaktionsprodukts aus einer Umsetzung eines Esters der Formel



            R(COOR¹)n



    worin n eine Zahl von 1 bis 5 sowie R und R¹ Hydrokohlenwasserstoff- oder Hydroxykohlenwasserstoffreste mit 1 bis 40 Kohlenstoffatomen bedeuten, wobei mindestens einer der Reste R und R¹ einen Hydroxykohlenwasserstoffrest darstellt, mit einer Borverbindung, enthält.
EP84306857A 1984-02-06 1984-10-09 Fettzusammensetzung Expired - Lifetime EP0151859B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84306857T ATE77644T1 (de) 1984-02-06 1984-10-09 Fettzusammensetzung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US57745484A 1984-02-06 1984-02-06
US577454 1984-02-06
US64107884A 1984-08-15 1984-08-15
US641078 1984-08-15

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EP0151859A2 EP0151859A2 (de) 1985-08-21
EP0151859A3 EP0151859A3 (en) 1986-04-16
EP0151859B1 true EP0151859B1 (de) 1992-06-24

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ID=27077243

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EP84306857A Expired - Lifetime EP0151859B1 (de) 1984-02-06 1984-10-09 Fettzusammensetzung

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EP (1) EP0151859B1 (de)
JP (1) JPH0694557B2 (de)
AU (1) AU575596B2 (de)
BR (1) BR8406567A (de)
CA (1) CA1231703A (de)
DE (1) DE3485789T2 (de)
NZ (1) NZ209963A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1273332A (en) * 1985-08-27 1990-08-28 Mobil Oil Corporation Grease compositions containing borated compounds and hydroxy-containing soap thickeners
BR9304049A (pt) * 1992-11-12 1994-05-17 Lubrizol Corp Composição de graxa e método para aumentar o ponto de gotejamento de uma graxa.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943054A (en) * 1958-03-21 1960-06-28 Union Oil Co Shear stable barium 12-hydroxy stearate grease containing a boron ester compound
BE780687A (fr) * 1972-03-15 1972-07-03 Labofina Sa Graisses lubrifiantes.
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
JPS5925891A (ja) * 1982-08-03 1984-02-09 Karonaito Kagaku Kk 潤滑油組成物

Also Published As

Publication number Publication date
BR8406567A (pt) 1985-10-15
JPH0694557B2 (ja) 1994-11-24
JPS60166399A (ja) 1985-08-29
DE3485789D1 (de) 1992-07-30
CA1231703A (en) 1988-01-19
EP0151859A2 (de) 1985-08-21
AU3483484A (en) 1985-08-15
DE3485789T2 (de) 1992-12-24
NZ209963A (en) 1987-08-31
AU575596B2 (en) 1988-08-04
EP0151859A3 (en) 1986-04-16

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