EP0308445A1 - Verfahren zur herstellung eines ein anorganisches borderivat enthaltenden überbasischen additivs, danach erhaltene additive und diese enthaltende schmiermittel. - Google Patents

Verfahren zur herstellung eines ein anorganisches borderivat enthaltenden überbasischen additivs, danach erhaltene additive und diese enthaltende schmiermittel.

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Publication number
EP0308445A1
EP0308445A1 EP88902504A EP88902504A EP0308445A1 EP 0308445 A1 EP0308445 A1 EP 0308445A1 EP 88902504 A EP88902504 A EP 88902504A EP 88902504 A EP88902504 A EP 88902504A EP 0308445 A1 EP0308445 A1 EP 0308445A1
Authority
EP
European Patent Office
Prior art keywords
weight
boron
reaction mixture
additive
esters
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.)
Granted
Application number
EP88902504A
Other languages
English (en)
French (fr)
Other versions
EP0308445B1 (de
Inventor
Pierre Hoornaert
Claude Rey
Roger Gallo
Catherine Belle
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.)
Elf Antar France
Original Assignee
Elf France SA
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Filing date
Publication date
Application filed by Elf France SA filed Critical Elf France SA
Publication of EP0308445A1 publication Critical patent/EP0308445A1/de
Application granted granted Critical
Publication of EP0308445B1 publication Critical patent/EP0308445B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/26—Overbased carboxylic acid 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbasedsulfonic acid salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—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
    • C10M2219/089—Overbased salts

Definitions

  • This invention relates to a process for preparing an over-alkalized additive for lubricating oils containing a boron derivative, the additive thus obtained and a lubricant composition containing said additive.
  • additives improving their properties.
  • these additives are detergents, dispersants, anti-wear and extreme pressure additives and additives providing a basic reserve.
  • the detergent and dispersing properties of a lubricant correspond to its ability to maintain impurities and burnt i in suspension in the hot parts of the engine by its detergency effect but also in the cold parts by its dispersing effect. The fixing of these particles in the form of varnish or lacquers is thus avoided.
  • the role of basic reserve additives consists in combating the acidity caused in engines by the combustion of organic sulfur derivatives contained in fuels and by the oxidation of the components of lubricating oils.
  • Anti-wear additives act by forming a solid or plastic thin film which separates the friction surfaces and prevents wear of the different parts of the engine.
  • the detergent and dispersant properties as well as the basicity reserve are generally provided by overbased additives. These are alkali or alkaline earth metal carbonates in a detergent solution of the al yl sulfonate, phenate or salicylate type.
  • Antiwear additives are generally sulfur and / or phosphorus compounds, the most commonly used being the Zn dialkyldithiophosphates.
  • Boron derivatives form another class of antiwear additives.
  • the boron mineral compounds provide an antiwear and extreme pressure function (US patents 3,907,691 and 4,10081) while the organic compounds provide antiwear and antifriction properties rather (American patents 4,549,775 and 4,599,183).
  • US Patent 3,907,691 provides for the format of a complex by heating the intermediate product fo by reaction of boric acid with the overbased sulfonate.
  • US Patent 4,539,126 claims the preparation of complexes by reaction of boric acid with overbased alkylsalicylate.
  • the alkaline value (VA) is fictitiously equivalent to the number of milligrams of KOH per gram of additive surba titrated by a strong acid. It is determined by direct potentiometric dosa according to standard ASTM D-2896.
  • the process for the preparation of overbased additi with antiwear effect consists in carbonating a reaction mixture composed of at least detergent, of a metal, alkali or alkaline earth derivative of at least one nitrogenous and / or oxygenated promoter in a diluting oil and a hydrocarbon solvent characterized in that it operates in the presence of at least one boron derivative.
  • Inorganic or bi organic derivatives of boron can be used.
  • the oxides and anhydrides of boron as well as boric ac and its salts.
  • esters boric acid and the liberated or esterified alkyl and arylboronic acids are particularly useful.
  • Esters are formed with aliphatic, cyclic or phenol alcohols.
  • the aliphatic alcohols are generally linear or branched in C. to C__ and preferably in C.
  • glycols having the two hydroxyl groups in positions 1-2, 1-3, or 1-4, such as glycol, propylene glycol or neopentyl glycol as well as polyglycols such as diethylene glycol, dipropyl glycol or tripropylene glycol.
  • Polyols such as glycerol, trimethylolpropane or pentaerythritol are also suitable.
  • alkoxyalkanols and preferably the alkoxyalkanols corresponds to the general formula RO (CHR .. (CH_) JOL H or R is C 1 to C alkyl group, R. hydrogen or an alk group C- to C. ,, a is between 1 and 3 and b corresponds or 2.
  • alkoxyalkanols examples include methoxyethanol, 1 • ethoxyethanol or ETHYL-CELLOSOLVE and BUTYL-CELLOSOLVE.
  • Alcohols the molecule of which contains several amino functions, are also suitable.
  • alkanolamines such as diethanolamine or triethanola ine and oxyalkylated alkylmono polyamines.
  • the oxyalkylated alkyl monoamines preferably correspond to the formula R_NH Z, or R is hydrogen or alkyl, C. to C__ preferably C.
  • Q to C-, g corresponds to the group -CHR, -CH? -OH, R., being a C 1 to C 4 alkyl group or an aromatic ring, c may be 0 or and c + d is equal to 2.
  • the oxyalkylated alkyl polyamines preferably correspond to the formula R_NZ n - (CH_) -NZ_Z, or Z., Z_ and identical or different correspond to hydrogen and at least one of the three corresponds to Z defined above, R_ has the same meaning as above .
  • cyclic alcohols cyclopentanol, cyclohexanol and their mono polyalkylated derivatives can be mentioned on the ring.
  • phenols phenol itself and its substituted derivatives, such as cresols, are most commonly used.
  • the boric acid esters can be prepared by any known method, in particular by reacting boron trichloride with alcohols and phenols. In the event of the esterification of boric acid by the polyols, the water formed must be removed by azeotropic entrainment.
  • boron derivatives are used alone or as a mixture.
  • the boron derivatives can be added to the reaction mixture in pulverulent form, optionally previously dispersed in an oil, in the form of an aqueous solution or in liquid form.
  • the detergents commonly used in overbased additives are salts of sulfonic acids, salicyclic acids or phenols
  • R 4 is a radical hydrocarbon from 12 to 100 carbon atoms, n is between i and 6 and m is between 1 and 5.
  • the sulfonic acids are of petroleum or synthetic origin.
  • the average molecular weight of petroleum sulfonates is generally greater than 320. They are obtained by sulfonation of petroleum distillates. Synthetic sulfonic acids are particularly useful in the context of the invention. They may be products obtained by sulfonation of olefins with a carbon number greater than or equal to 12 or alternatively alkylarylsulfonic acids.
  • Alkylarylsulfonic acids have one or more alkyl chains on an aromatic ring, generally a benzenic ring.
  • the alkyl chains must contain a minimum of 8 carbon atoms. Their structure is linear or branched.
  • Oil-soluble salicylic acids substituted on the aromatic ring by a chain have at least 10 and in general 16 to 18 carbon atoms.
  • the phenols soluble in organic medium which are particularly advantageous in the context of the invention are phenols substituted by one or more linear or branched alkyl chai comprising at least 8 carbon atoms.
  • the most common commercial products are for example nonylphenol, dinonylphenol, dodecylphenol and their mixtures.
  • Phenols are used in the form of alkali or alkaline earth metal salts. They are particularly appreciated after having undergone sulfurization by reaction with the flower of sulfur or enc with sulfur chloride.
  • Sulfonic salicylic acids or phenols can be used in mela with dispersants derived from alkenylsuccinic acids chain greater than or equal to 12 carbon atoms or b with carboxylic acids having at least 8 carbon atoms.
  • the alkali or alkaline earth metal derivative is generally an oxide, hydroxide or alcoholate of such a metal
  • the oxygenated promoters are mainly aliphatic alcohols, generally C 1 to C 2, most often methanol, ethanol, butanol or glycols. Ethers such as dioxolane or dialkoxymethanes are also used.
  • the alcohols can be used alone when mixed with water.
  • the nitrogen promoters are among others ammonia, ethylenediamine, ethanolamines, ammonium chloride or ammonium carbonate.
  • the role of the diluent oil is to allow easy handling at room temperature.
  • paraffinic oils such as 7,100 or 150 Neutral or naphtenic oils, type 100 Pa solvent.
  • Hydrocarbon solvents have an aliphatic structure, such as heptane, isooctane, nonane or an aromatic structure, such as toluene or xylene. These solvents can be used as a mixture. It is particularly advantageous to use solvents which give azeotropes with water, such as alcohols, glycols or alkoxyalkanols
  • a double jacket reactor is generally used, provided with a vigorous stirring system, a temperature regulator, a condenser, a system allowing a vacuum to be produced. o a slight overpressure, a gas diffuser and a solvent recovery system.
  • the boron derivatives are used in the form of an oil dispersion, this dispersion is added to the reaction mixture before the introduction of carbon dioxide.
  • the boron derivatives used in dispersion are boric acid and its salts.
  • the boron derivatives used in powder form or in the form of an aqueous solution if their solubility is sufficient, are boron oxide boric acid and its salts.
  • the boron derivatives used in liquid form are certain boric esters and alkyl or ary boronic acids.
  • the pulverulent, liquid compounds or the aqueous solutions are introduced before carbonation o during carbonation a few minutes after starting the starting of the reaction.
  • the reaction mixture is subjected to vigorous stirring until the introduction of 50 to 350 parts by inch of carbon dioxide by bubbling into the reaction millet.
  • the duration of carbonation generally varies from 20 minutes to 4 hours at constant flow.
  • the mixture is maintained at a temperature varying from 20 to 80 ° C and preferably from 35 to 70 ° C.
  • reaction mixture containing the boron derivative may be advantageous to bring the reaction mixture containing the boron derivative to reflux, for a period of 30 minutes to 2 hours before carbonation.
  • Solvents can be removed in just one step, but generally there are two steps.
  • the solvents, apart from the hydrocarbon diluent, are removed by heating and then the solid residues by centrifugation or filtrate before the removal of the hydrocarbon solvent.
  • the overbased additives obtained by the process according to the invention have alkaline values (VA), measured according to standard ASTM D-2896, generally greater than 200 KOH / g. VAs greater than 300 and even 500 can be obtained.
  • VA alkaline values
  • reaction mixture free of bo derivative is brought to reflux for at least half an hour. After cooling, the boron derivative is added. The introduction of carbon dioxide and the subsequent treatment proceed as before.
  • the overbased phenates obtained have d alkaline values (VA) generally greater than 150 KOH / g. VAs greater than 250 even 320 can be obtained.
  • the amount of boron incorporated can vary between 0 and 10% by weight and preferably 0.25 to 5%. This amount is sufficient to provide antiwear properties to lubricating oils.
  • the antiwear properties are measured by mechanical tests commonly used, such as the method of the 4 wear balls (NF-E 48-617) and 4 extreme pressure balls (ASTM D 2783-69T or NF E 48-617) and the FALEX tests ( ASTM D 32-33).
  • the additives according to the invention have a limpid aspect and keep a homogeneous consistency over time. They have viscosities sufficiently low to allow easy handling and are compatible with the other additives usually used in lubricating oils.
  • the overbased additives are added to lubricating oils of natural or synthetic origin at a concentration of between 0.5 and 40% by weight and preferably between 1 and 30% by weight.
  • Example 3 The procedure of Example 1 is repeated except that 1 'adds 5 g of sodium metaborate tetrahydrate to the reaction medium before the 10th minute of carbonation. collects a product much more fluid than the previous VA 425, stable in oil and whose boron content is about 0.37% by weight EXAMPLE 3
  • Example 4 The experiment described in Example 1 is repeated, except that 2g of powdered sodium tetraborate are added to the reaction medium before the 10th minute of carbonation. A product of VA 403 mg KOH / g whose boron content is 0.45% by weight is collected. EXAMPLE 4
  • Example 6 A simple mixture of 13 g of overbased sulfonate in Example 1 is prepared with 3 g of the dispersion of sodium tetraborate in Example 4. A product of VA 35 containing 0.36% by weight of boron, with a cloudy appearance, is obtained. Examination with an electron microscope of the product shows the presence of calcium carbonate globules of 60 A diameter and sodium borate particles of 0.6 ⁇ m diameter. EXAMPLE 6
  • Example 3 The procedure described in Example 3 is repeated, with the difference that 4 g of 200N diluent oil are introduced instead of 22.5 g. 20.5 g of the sodium tetraborate dispersion of Example 4 are added before the carbonation begins. A product with a clear appearance, of 369 mg KOH / g at 0.46% by weight of boron, is then collected. IL "examination with an electron microscope reveals the presence of globules of approximately 60 A in diameter only. The analysis of globules in loss of energy gives a spectrum where 1'O notices a peak characteristic of the presence of boron.
  • Example 6 according to the invention allows effective incorporation of boron into the globules of the colloidal dispersion.
  • Example 3 The procedure of Example 3 is repeated, except that 30 grams of calcium oxide, 10.2 ml of water are introduced and the product is carbonated for 75 minutes at a rate of 103 ml / minute. Before the 15th minute of carbonation o add 9.52g of potassium tetraborate powder. O collects a clear product of VA 310 mg KOH / g and contains 0.86% by weight of boron.
  • Example 9 The procedure of Example 7 is repeated, but the boron compound is boric acid. 8.98 g of boric acid and powder are added to the 10th minute of carbonation. We then obtain a product of VA 411 mg KOH / g and of very viscous consistency. It contains 1.23% by weight of boron. EXAMPLE 9
  • Example 10 The procedure of Example 7 is repeated after adding only 4.5 ml of methanol to the reaction medium. O obtains a clear, very fluid product of VA 298 mg KOH / and containing 1.3% by weight of boron.
  • EXAMPLE 10 The procedure of Example 7 is repeated after adding only 4.5 ml of methanol to the reaction medium. O obtains a clear, very fluid product of VA 298 mg KOH / and containing 1.3% by weight of boron.
  • Example 8 The procedure of Example 8 is repeated, but the diluent oil is replaced with 28.5 g of a dispersion of boric acid in the oil at around 5% by weight of boron. This dispersion is introduced into the mixture before the start of carbonation. A clear product of VA 303 KOH / g and 1.2% by weight of boron is obtained.
  • Example 8 The procedure of Example 8 is repeated, but 11.2 of powdered boron trioxide are added.
  • Example 7 The procedure of Example 7 is repeated but 1 of trimethylborate is added to the 10th minute of carbonation. then obtains a viscous product of VA 437 mg KOH / g e 1.2% by weight of boron.
  • Example 14 The procedure of Example 1 is repeated except that 9.53 g of powdered diammonium tetraborate are added after minutes of carbonation. A relatively fluid limp product of VA 438 mg KOH / g and containing 1, weight of boron is obtained.
  • EXAMPLE 14 The procedure of Example 1 is repeated except that 9.53 g of powdered diammonium tetraborate are added after minutes of carbonation. A relatively fluid limp product of VA 438 mg KOH / g and containing 1, weight of boron is obtained.
  • Example 10 The procedure of Example 10 is repeated but the same conditions are added 19.06 g of diammonium tetraborate.
  • a product of VA 437 mg KOH / g is collected which contains 1, weight of boron.
  • Example 10 The procedure of Example 10 is repeated, but the carbonate additive for 23 minutes at 148 ml / minute.
  • reaction mixture is carbonated as soon as the temperature has dropped to 49 ° C.
  • Example 1 The procedure of Example 1 is repeated except that the o uses instead of the C_ 4 -benzene sulfonic acid, 23 of an 80/20 mixture by mole of C_ 4 acid ⁇ benzene sulfonic acid by weight. molar 520 to 70% of active material and C_ carboxylic acid obtained by hydroformylation of olefin (CK9 acid distributed by the company NORSOLOR). 30.7 g of slaked lime at 97% purity are added.
  • Carbonation is carried out for 25 minutes at a flow rate of 210ml / minute.
  • a solution of propylene glycol borate in xylene is prepared by heating to 50 ° C. with stirring of a mixture of 46.4 g of propylene glycol, 41 g of boric acid and 300 m of xylene. The water formed is removed by azeotropic distillatio. 314 g of a 2.6% boron solution are obtained Into the reactor described above, from Example 1, 34.6 g of the propylene glycol borate solution, 16.61 g of C., ⁇ -alkylbenzenesulfonic acid 96% of active material and of molecular weight 430, 24, d are introduced. diluent oil, 112ml of xylene, 7ml of methanol and 23ml of slaked lime at 99% purity.
  • the mixture is carbonated for 26 minutes at 42 at a flow rate of 230ml / minute.
  • the mixture is carbonate at a flow rate of 156 ml / minute for 26 minutes at a temperature of 42 ° C.
  • the limpi product collected has a VA of 351 and contains 0.36% of boron.
  • the mixture is brought to reflux for 3 hours then it is carbonated for 50 minutes a flow rate of approximately 90 ml / minute at a temperature of 53 ° C.
  • the solvents and the hydrocarbon diluent are removed by heating to 100 ° under reduced pressure.
  • Example 19 The procedure of Example 19 is repeated, except that 6.75 g of powdered diammoni tetraborate are added to the reaction medium after 10 minutes of carbonation. A relatively fluid product is obtained, of VA 267 mg KOH and containing 1.43% of boron.
  • the procedure is as in the previous example but by introducing 40.6 g of tributylborate and 28 ml of methanol before carbonation.
  • the product has a VA of 265 and contains 1.8% boron.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
EP88902504A 1987-03-17 1988-03-16 Verfahren zur herstellung eines ein anorganisches borderivat enthaltenden überbasischen additivs, danach erhaltene additive und diese enthaltende schmiermittel Expired - Lifetime EP0308445B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8703646 1987-03-17
FR8703646A FR2612526B1 (fr) 1987-03-17 1987-03-17 Procede de preparation d'un additif suralcanise renfermant un derive du bore, l'additif ainsi obtenue et compositions lubrifiantes renfermant ledit additif

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP90104404A Division EP0383359B1 (de) 1987-03-17 1988-03-16 Verfahren zur Herstellung eines, ein anorganisches Borderivat enthaltenden, }berbasischen Additivs, so erhaltenes Additiv und Schmiermittel, die dieses Additiv enthalten.
EP90104404.0 Division-Into 1990-03-08

Publications (2)

Publication Number Publication Date
EP0308445A1 true EP0308445A1 (de) 1989-03-29
EP0308445B1 EP0308445B1 (de) 1991-08-28

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EP88902504A Expired - Lifetime EP0308445B1 (de) 1987-03-17 1988-03-16 Verfahren zur herstellung eines ein anorganisches borderivat enthaltenden überbasischen additivs, danach erhaltene additive und diese enthaltende schmiermittel

Country Status (6)

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US (1) US5098587A (de)
EP (1) EP0308445B1 (de)
JP (1) JPH01502759A (de)
DE (1) DE3864483D1 (de)
FR (1) FR2612526B1 (de)
WO (1) WO1988007073A1 (de)

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Also Published As

Publication number Publication date
DE3864483D1 (de) 1991-10-02
WO1988007073A1 (fr) 1988-09-22
US5098587A (en) 1992-03-24
FR2612526A1 (fr) 1988-09-23
EP0308445B1 (de) 1991-08-28
JPH01502759A (ja) 1989-09-21
FR2612526B1 (fr) 1990-02-02

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