EP0218208B1 - Schmierfett für hohe Anwendungstemperaturen - Google Patents

Schmierfett für hohe Anwendungstemperaturen Download PDF

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Publication number
EP0218208B1
EP0218208B1 EP86113652A EP86113652A EP0218208B1 EP 0218208 B1 EP0218208 B1 EP 0218208B1 EP 86113652 A EP86113652 A EP 86113652A EP 86113652 A EP86113652 A EP 86113652A EP 0218208 B1 EP0218208 B1 EP 0218208B1
Authority
EP
European Patent Office
Prior art keywords
acid
lubricating grease
hydroxy fatty
greases
fatty acid
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
EP86113652A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0218208A3 (en
EP0218208A2 (de
Inventor
Hans Dieter Grasshoff
Herbert Maak
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.)
Wintershall Dea International AG
Original Assignee
Texaco Services Europe GmbH
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 Texaco Services Europe GmbH filed Critical Texaco Services Europe GmbH
Priority to AT86113652T priority Critical patent/ATE60082T1/de
Publication of EP0218208A2 publication Critical patent/EP0218208A2/de
Publication of EP0218208A3 publication Critical patent/EP0218208A3/de
Application granted granted Critical
Publication of EP0218208B1 publication Critical patent/EP0218208B1/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
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M123/00—Lubricating compositions characterised by the thickener being a mixture of two or more compounds covered by more than one of the main groups C10M113/00 - C10M121/00, each of these compounds being essential
    • C10M123/02—Lubricating compositions characterised by the thickener being a mixture of two or more compounds covered by more than one of the main groups C10M113/00 - C10M121/00, each of these compounds being essential at least one of them being a non-macromolecular compound
    • 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
    • C10M113/00—Lubricating compositions characterised by the thickening agent being an inorganic material
    • C10M113/08—Metal compounds
    • 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
    • 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
    • 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
    • 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
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/0606—Metal compounds used as thickening agents
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/061—Carbides; Hydrides; Nitrides
    • C10M2201/0616—Carbides; Hydrides; Nitrides used as thickening agents
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C10M2201/0626—Oxides; Hydroxides; Carbonates or bicarbonates used as thickening agents
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/0656—Sulfides; Selenides; Tellurides used as thickening agents
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • C10M2201/0666—Molybdenum sulfide used as thickening agents
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/0806—Inorganic acids or salts thereof used as thickening agent
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    • C10M2201/085—Phosphorus oxides, acids or salts
    • C10M2201/0856—Phosphorus oxides, acids or salts used as thickening agent
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    • C10M2201/086—Chromium oxides, acids or salts
    • C10M2201/0866—Chromium oxides, acids or salts used as thickening agent
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/087—Boron oxides, acids or salts
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/087—Boron oxides, acids or salts
    • C10M2201/0876—Boron oxides, acids or salts used as thickening agent
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/1013—Compounds containing silicon used as thickening agents
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/102—Silicates
    • C10M2201/1026—Silicates used as thickening agents
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • 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
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    • 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
    • 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
    • C10M2207/128—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 containing hydroxy groups; Ethers thereof
    • C10M2207/1285—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 containing hydroxy groups; Ethers thereof used as thickening agents
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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    • 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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    • C10M2207/22—Acids obtained from polymerised unsaturated acids
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    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
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    • C10M2215/22—Heterocyclic nitrogen compounds
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    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
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    • C10M2219/106—Thiadiazoles
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    • 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

Definitions

  • the invention relates to a grease for high application temperatures, the base oil, 1 to 35 wt .-% based on the total grease formulation of a consistency-giving complex thickener system containing lithium soaps of hydroxy fatty acids and alkali borates, and conventional additives.
  • Lubricating greases are superior to lubricating oils in many applications due to their plastic nature. They offer the advantage of making machine designs simpler because the complete sealing of the rolling bearings, which is necessary when using lubricating oils, is no longer required. You yourself protect rolling bearings from dirt and water by forming a cushion. High-quality lubricating greases today often reach the service life of the rolling bearings, i.e. relubrication is not necessary if the maximum permissible operating temperature of the grease is not exceeded.
  • Lithium soap greases have been used extensively for many years. Their widespread use stems from the fact that they combine essential advantages of calcium and sodium soap fats. This means that they have good water resistance and can be used at dropping points of around 200 ° C up to operating temperatures of 120 ° C to 150 ° C.
  • lithium complex greases have been developed for some time, the temperature resistance of which exceeds conventional lithium soap greases, which usually consist of the lithium soap of 12-hydroxystearic acid as a thickener.
  • Lubricating greases with high dropping points also contain lithium salts of boric acid, which are formed during the production process in the presence of polyhydric alcohols (glycerol).
  • glycerol polyhydric alcohols
  • this patent in addition to a high molecular weight hydroxy fatty acid (12-hydroxystearic acid), another low molecular weight hydroxy fatty acid is added.
  • the published patent application DE-A-30 29 750 describes a lithium complex soap grease, the thickener of which consists of a fatty acid with 12 to 24 carbon atoms (stearic acid) and a dicarboxylic acid with 4 to 12 carbon atoms (sebacic acid / azelaic acid). Drip points up to 264 ° C are achieved.
  • highly dripping greases are obtained if a lithium complex soap composed of hydroxy fatty acid with 12 to 24 carbon atoms, a lithium salt of a second hydroxycarboxylic acid with 3 to 14 carbon atoms, a dilithium salt, a dicarboxylic acid with 4 to 12 carbon atoms or a monolithium salt which produces boric acid.
  • the patent US-A-3 985 662 describes highly dripping lithium complex greases with dropping points above 300 ° C, which contain a thickener system consisting of lithium soaps from epoxy-substituted and / or ethylenically unsaturated fatty acids, in combination with other lithium soaps, dilithium salts of straight-chain dicarboxylic acids and also lithium salts of hydroxy-substituted aromatic acids.
  • the object of the invention is to provide lubricating greases which have operating temperatures which go beyond the prior art.
  • the greases according to the invention are distinguished by excellent thermal stability and outperform known high-temperature greases on the market in their high-temperature properties. With dropping points of predominantly 300 ° C. and higher, the lubricating greases according to the invention can be used in roller bearings when using suitable base oils up to temperatures of 280 ° C.
  • the service life of the greases at such high temperatures depends on the thickener, the lithium complex soap and also dependent on the base oil and additives used, primarily the antioxidants.
  • the improved properties of the lubricating greases according to the invention can be attributed to the fact that a component was found with the branched dicarboxylic acid, which is the thickener system according to DE-C-22 64 263, consisting of the lithium soap of a hydroxystearic acid in combination with lithium tetraborate, in particular in the temperature range between 200 ° C and 300 ° C significantly stabilized.
  • the grease according to the invention is considerably more consistent in this area.
  • Greases usually consist of three main components: the liquid phase, the base oil, the thickener and the additives.
  • the commercially available greases normally contain naphthenic or paraffinic mineral oils as base oils, the degree of refinement of which can be selected between moderately to highly refined depending on the way in which the greases are used.
  • Highly refined mineral oils are used in particular for the intended purpose, and the refining of the lubricating oil distillate derived from the distillation of the crude mineral oil can be carried out according to three different processes in order to largely remove undesirable substances which adversely affect the quality of the lubricating oil. These are the conventional sulfuric acid process (acid refining), extraction with selective solvents (solvent refining) or catalytic hydrogenation (hydrogenating refining). A combination of these methods is often used. To improve the cold properties, the lubricating oils are usually also subjected to dewaxing in order to remove high-melting paraffins.
  • the refining processes for mineral oils are described in Ullmann's Encyclopedia of Industrial Chemistry, 4th edition, volume 20, pages 484 ff.
  • Suitable alkylbenzenes are derived from the known Friedel-Crafts syntheses by alkylating benzene with alkyl chlorides or olefins (Ullmann, 4th edition, volume 14, pages 672 ff).
  • Alpha-olefins which are produced by ethylene oligomerization or by cracking paraffins according to different processes serve as raw material for the production of polymer oils (Ullmann, 4th edition, volume 14, pages 664 ff).
  • these alpha-olefins are polymerized and hydrogenated ("Synthetic Poly-alpha-olefin Lubricants Today and Tomorrow", M. Campen, J.F. Kendrick, A.D. Markin, and Ullmann, 4th edition, volume 20, pages 505 ff).
  • Simple or complex esters are used as the carboxylic acid esters, as described in Ullmann, 4th edition, volume 20, pages 514 ff.
  • Lubric acid, antiwear additives and high pressure additives are also common additives.
  • a polymeric 1,2-dihydro-2,2,4-trimethylquinoline of the general formula has been used as an oxidation retarder for the high temperature range or p, p-dioctyldiphenylamine of the formula proven.
  • additives to prevent bearing corrosion are added, such as calcium dinonylnaphthalenesulfonate of the formula and a metal deactivator such as sodium mercaphtobenzothiazole of the formula to prevent the corrosion of copper and copper alloys, which will be used in rolling bearings (cages) in the future.
  • a lithium complex soap is preferably used which has been prepared from a hydroxy fatty acid having 12 to 24 carbon atoms, for example 9-hydroxystearic acid, 10-hydroxystearic acid or 12-hydroxystearic acid, 10-hydroxypalmitic acid and 12-hydroxy behenic acid.
  • the lithium 12-hydroxystearate is preferred.
  • a 12-hydroxystearic acid can be used for the production, which was obtained by splitting and hydrogenating castor oil and contains small amounts of other fatty acids. Instead of the free hydroxy fatty acid (s) one can also use its glyceride, e.g. 12-hydroxystearin.
  • esters of hydroxyfatty acids with lower alcohols such as methanol, ethanol, propanols and butanols
  • lower alcohols such as methanol, ethanol, propanols and butanols
  • a lithium salt of boric acid is preferably used as the alkali borate component of the thickener system of the lubricating greases according to the invention, which is either from boric acid or _ better _ from boric acid esters such as boric acid tributyl ester, by reaction with lithium hydroxide manufactured in situ during the manufacturing process or added as a lithium salt before or during the manufacturing process.
  • Dilithium tetraborate is preferably added to the grease. It can optionally be used as a hydrate containing water of crystallization.
  • a sodium salt of boric acid for example disodium tetraborate, can also be used instead of a lithium salt of boric acid.
  • the presence of a borate is obviously decisive for the formation of the complex.
  • the thickener system contains, as a third component, the dilithium salt of a branched-chain dicarboxylic acid, preferably 3-tert-butyl-adipic acid of the formula
  • the dilithium salt of this acid surprisingly imparts a high thermal stability to the greases of the present invention, which cannot be achieved with an otherwise identical composition of the grease with dilithium salts of straight-chain dicarboxylic acids such as adipic acid, azelaic acid or sebacic acid. Further tests have shown that, for example, the use of methylsuccinic acid and trimethyladipic acid gives lubricating greases which are superior in their high-temperature properties to the lithium complex greases known to date.
  • Tetrapropenylsuccinic acid, 2,2- or 2,4- or 3,3-dimethylglutaric acid are just as suitable as a mixture of 75% 2-ethylcorkic acid, 15% diethyladipic acid and 10% sebacic acid commercially available under the name isosebacic acid (see Ullmann, Volume 10 , Pages 138/139).
  • the test bearing installed in the FE9 testing machine (which is intended for standardization under DIN 51 821) is filled with a certain amount (2 g) of the fat to be tested.
  • the greased bearing is operated at a test temperature generated by heating at a speed of 6000 min ⁇ 1 and an axially directed test force of 1.5 kN.
  • the lubrication conditions change over a longer period of time, for example due to oxidation of the grease or leakage of the grease due to the high temperature. This leads to an increase in the drive torque.
  • a bearing failure occurs when the bearing needs a multiple of the steady-state torque to drive it in the long term.
  • the duration of exposure corresponds to the fat life.
  • the average fat life (average lifespan L 50) in hours is determined from the statistical impact of at least 5 tests under the same conditions using the Weibull diagram. The tests were carried out in angular contact ball bearings type 7206 B.
  • the amount of 12-hydroxystearic acid or the methyl ester of 12-hydroxystearic acid corresponding to the examples, together with the dicarboxylic acid used in each case and a third of the base oil calculated for the batch, is weighed into a suitable agitator container and heated to 85.degree . At this temperature, the saponification takes place with the amount of lithium hydroxide required to neutralize the components. After the temperature has risen to 115 ° C., the alkali borate is added, dissolved in water. If a lithium salt of boric acid is formed during the manufacturing process, the boric acid is neutralized together with the fatty acids. After dehydration of the batch, the temperature is brought to 245 ° C. in about one hour.
  • a further third of the base oil is added at 150 ° C and the remaining third when the final temperature is reached.
  • the batch is left for another hour to form a complex at this temperature and then cooled.
  • Additives antioxidants, corrosion protection, antiwear additives, etc.
  • Additives are added at 100 ° C.
  • the grease according to the invention (example 2) is still in consistency class 2 with a dropping point of over 300 ° C even at 200 ° C.
  • consistency class 2 means a range from 265 to 295 mm / 10, which a standardized cone penetrates into a grease under standardized conditions according to ISO 2137.
  • the comparison approaches, as can be seen from the table, are significantly softer with values of 00, 0 and 1.
  • the lubricating grease according to the invention (example 2) is also superior to the comparative greases in rolling bearings at 150 ° C. and 200 ° C.
  • the FE 9 testing machine from Kugelfischer FAG was used to check the service life of the greases. As already mentioned, the tests were carried out at a speed of 6000 rpm and a load of 1.5 kN in angular contact ball bearings type 7206 B.
  • Examples 5 and 6 show greases in which the lithium salts of boric acid have formed during the production of the greases, as described in the process description.
  • the amount of lithium hydroxide in Example 5 was calculated on monolithium borate, in Example 6 on trilithium borate.
  • the average lifespan of both fats is approximately the same.
  • Examples 12 and 13 show that not only the lithium salts of boric acid but also the sodium salts of boric acid enable complex formation, which can be recognized during production by an increase in consistency at high temperatures. However, if no borate is used (example 14), a grease with a relatively high dropping point is obtained. However, there is no complex formation. The grease has a correspondingly soft consistency and is not suitable for use in rolling bearings at high temperatures.

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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)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)
EP86113652A 1985-10-05 1986-10-02 Schmierfett für hohe Anwendungstemperaturen Expired - Lifetime EP0218208B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113652T ATE60082T1 (de) 1985-10-05 1986-10-02 Schmierfett fuer hohe anwendungstemperaturen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535713 1985-10-05
DE3535713A DE3535713C1 (de) 1985-10-05 1985-10-05 Schmierfett fuer hohe Anwendungstemperaturen

Publications (3)

Publication Number Publication Date
EP0218208A2 EP0218208A2 (de) 1987-04-15
EP0218208A3 EP0218208A3 (en) 1988-03-09
EP0218208B1 true EP0218208B1 (de) 1991-01-16

Family

ID=6282940

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EP86113652A Expired - Lifetime EP0218208B1 (de) 1985-10-05 1986-10-02 Schmierfett für hohe Anwendungstemperaturen

Country Status (7)

Country Link
US (1) US4737299A (enrdf_load_stackoverflow)
EP (1) EP0218208B1 (enrdf_load_stackoverflow)
JP (1) JPS6286095A (enrdf_load_stackoverflow)
AT (1) ATE60082T1 (enrdf_load_stackoverflow)
BR (1) BR8604829A (enrdf_load_stackoverflow)
DE (2) DE3535713C1 (enrdf_load_stackoverflow)
ES (1) ES2020175B3 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0633388B2 (ja) * 1986-04-30 1994-05-02 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー 潤滑グリ−ス組成物
US4897210A (en) * 1988-07-12 1990-01-30 Pennzoil Products Company Lithium complex grease thickener and high dropping point thickened grease
JPH10130682A (ja) * 1996-10-29 1998-05-19 Ntn Corp グリース封入転がり軸受
DE10254795A1 (de) * 2002-11-22 2004-06-09 Fuchs Europe Schmierstoffe Gmbh Schmierfett enthaltend Polyether-Verbindungen
JP4328120B2 (ja) * 2003-03-31 2009-09-09 住友重機械工業株式会社 揺動内接噛合型遊星歯車装置及びその耐久性向上方法
JP2006249376A (ja) * 2005-03-14 2006-09-21 Kyodo Yushi Co Ltd ハーネス用グリース組成物
JP2007262300A (ja) * 2006-03-29 2007-10-11 Kyodo Yushi Co Ltd 潤滑剤組成物
BRPI0914229B1 (pt) 2008-06-19 2018-06-19 Shell Internationale Research Maatschappij B.V. Composição de graxa lubrificante
EP2652097A1 (en) * 2010-12-16 2013-10-23 Invista Technologies S.a r.l. Thickened grease composition
CN105542904B (zh) * 2013-12-30 2018-04-03 北京雅士科莱恩石油化工有限公司 一种稠化剂及包含该稠化剂的复合锂基润滑脂
JP6699777B2 (ja) * 2018-03-30 2020-05-27 ダイキン工業株式会社 冷媒配管、熱交換器および冷媒配管の製造方法

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US2756213A (en) * 1952-08-19 1956-07-24 California Research Corp Amate-dicarboxylate-thickened grease
DE2027403C2 (de) * 1970-06-04 1983-12-15 Exxon Research and Engineering Co., 07036 Linden, N.J. Dauerschmierfett
AU457980B2 (en) * 1970-11-18 1975-02-13 Esso Research And Engineering Company Lithium soap grease
US3791973A (en) * 1971-02-24 1974-02-12 Exxon Research Engineering Co Grease thickened with lithium soap of hydroxy fatty acid and lithium salt of aliphatic dicarboxylic acid
DE2359685A1 (de) * 1973-11-30 1975-06-05 Pohlig Heckel Bleichert Im bereich des abwurfes eines foerderbandes in dessen verlaengerung anzuordnende vorrichtung zur kontinuierlichen automatischen probenahme von schuettgut o.dgl.
US3988248A (en) * 1973-12-20 1976-10-26 Deutsche Texaco Aktiengesellschaft Lithium soap lubricating grease
DE2425161C2 (de) * 1974-05-24 1983-03-24 Deutsche Texaco Ag, 2000 Hamburg Lithiumseifenschmierfett
US3985662A (en) * 1975-02-28 1976-10-12 Exxon Research And Engineering Company High dropping point greases comprising a lithium soap of an epoxy-substituted and/or an ethylenically unsaturated fatty acid
JPS52117303A (en) * 1976-03-26 1977-10-01 Lion Corp Grease composition
CA1097319A (en) * 1977-03-14 1981-03-10 John H. Adams Grease containing borate ep additives
US4100080A (en) * 1977-03-14 1978-07-11 Chevron Research Company Greases containing borate dispersions as extreme-pressure additives
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US4435296A (en) * 1981-05-22 1984-03-06 The British Petroleum Company Limited Lubricating grease
US4376060A (en) * 1981-11-04 1983-03-08 Exxon Research And Engineering Co. Process for preparing lithium soap greases containing borate salt with high dropping point
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
US4435299A (en) * 1982-06-07 1984-03-06 Texaco Inc. Preparation of high dropping point lithium complex soap grease
EP0096919B1 (en) * 1982-06-14 1987-09-02 Shell Internationale Researchmaatschappij B.V. High dropping-point lithium-complex grease composition having improved extreme pressure properties

Also Published As

Publication number Publication date
DE3676931D1 (de) 1991-02-21
ES2020175B3 (es) 1991-08-01
JPS6286095A (ja) 1987-04-20
BR8604829A (pt) 1987-07-07
US4737299A (en) 1988-04-12
JPH0118120B2 (enrdf_load_stackoverflow) 1989-04-04
EP0218208A3 (en) 1988-03-09
ATE60082T1 (de) 1991-02-15
EP0218208A2 (de) 1987-04-15
DE3535713C1 (de) 1987-04-02

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