EP2154229A2 - Graisses complexes de calcium/lithium, joints de transmission homocinétiques encapsulés comprenant de telles graisses de lubrification, leur utilisation et leur procédé de fabrication - Google Patents

Graisses complexes de calcium/lithium, joints de transmission homocinétiques encapsulés comprenant de telles graisses de lubrification, leur utilisation et leur procédé de fabrication Download PDF

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Publication number
EP2154229A2
EP2154229A2 EP09009621A EP09009621A EP2154229A2 EP 2154229 A2 EP2154229 A2 EP 2154229A2 EP 09009621 A EP09009621 A EP 09009621A EP 09009621 A EP09009621 A EP 09009621A EP 2154229 A2 EP2154229 A2 EP 2154229A2
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EP
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Prior art keywords
calcium
lithium
composition
composition according
thickener
Prior art date
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EP09009621A
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German (de)
English (en)
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EP2154229A3 (fr
EP2154229B1 (fr
Inventor
Thomas Litters
Alexander Liebenau
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Fuchs SE
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Fuchs Petrolub SE
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Priority to SI200931944T priority Critical patent/SI2154229T1/sl
Priority to PL09009621T priority patent/PL2154229T3/pl
Publication of EP2154229A2 publication Critical patent/EP2154229A2/fr
Publication of EP2154229A3 publication Critical patent/EP2154229A3/fr
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Publication of EP2154229B1 publication Critical patent/EP2154229B1/fr
Priority to HRP20190536TT priority patent/HRP20190536T1/hr
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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
    • 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
    • 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
    • C10M121/00—Lubricating compositions characterised by the thickener being a compound of unknown or incompletely defined constitution
    • C10M121/04—Reaction 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/085—Phosphorus oxides, acids or salts
    • C10M2201/0856—Phosphorus 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
    • C10M2201/087—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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/106—Naphthenic fractions
    • C10M2203/1065—Naphthenic fractions used as base material
    • 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
    • C10M2207/10—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
    • C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
    • C10M2207/1225—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic 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
    • 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
    • C10M2207/1236—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 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
    • 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
    • C10M2207/126—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 monocarboxylic
    • C10M2207/1265—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 monocarboxylic 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
    • 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
    • C10M2207/127—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 polycarboxylic
    • C10M2207/1276—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 polycarboxylic 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
    • 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
    • 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
    • C10M2207/2613—Overbased carboxylic acid salts used as thickening agents
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/36—Seal compatibility, e.g. with rubber
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/68—Shear stability
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

Definitions

  • the invention relates to greases on calcium / lithium complex soap base, the use of greases for encapsulated constant velocity joints and constant velocity joints provided with such a grease and a method for producing the greases.
  • Lubricants For tribosystems, especially those used in many technical applications, it is important to use lubricants to reduce friction and wear on the contact surfaces of moving parts. Depending on the application, lubricants of different consistency can be used. Lubricating oils have a fluid and flowable consistency, while greases have a semi-solid to solid - often gelatinous - consistency.
  • a characteristic of a lubricating grease is that a liquid oil component is absorbed and retained by a thickener component.
  • Greases generally consist of a thickening agent which is homogeneously distributed in a base oil. Frequently, additional auxiliaries, such as emulsifiers, are used so that the thickener is stably dispersed in the base oil. Various substances are known as base oils.
  • the thickeners used are organic and inorganic compounds.
  • a lubricating grease The most important rheological properties of a lubricating grease include the consistency or its yield point, the avoidance of post-hardening and excessive oil separation under thermal and mechanical stress and a stable viscosity-temperature behavior. Often, even with lubricating grease outlet sealed lubrication points, a thixotropic (shear thinning) and shear unstable behavior of the grease advantageous as long as a consistent grease is required only for the assembly of appropriate components. In order to create a grease of high utility value depending on the lubrication and equipment requirements, a high degree of practical experience is required.
  • Greases are often used in sealed or sealed environments to protect the lubrication point from water, to minimize grease losses, and to prevent the ingress of particles such as sand or dust.
  • a typical application is greased and plastic bellows sealed joints of constant velocity universal joint shafts.
  • the capsule material often makes the movements of the mutually moving parts or at least absorbs vibrations. This requires mobility and, in most cases, elasticity of the material, which must not be adversely affected by contact or interaction with the grease.
  • conventional greases attack these capsule materials, causing them, e.g. become brittle and / or damaged by hydrolytic degradation.
  • a disadvantage of the prior art is considered that most lithium or lithium complex fats, as well as most lithium / calcium fats have too high shear stability, with the result of increased flexing and thereby caused increased steady-state temperatures in the joint.
  • Object of the present invention is it u.a. to minimize the disadvantages described above in terms of bellows compatibility and the loss of efficiency and service life in drive shafts.
  • the object is solved by the subject matter of the independent claims. Preferred embodiments are subject of the dependent claims or described below.
  • the inventive calcium / lithium complex soaps (Ca / Li complex soaps) with a high content of calcium have unexpectedly good properties when used as a grease for constant velocity joints.
  • Such products differ significantly from conventional Li / Ca fats.
  • Preference is given to preparing the Ca / Li soaps or the Ca / Li complex soaps in situ using the corresponding carboxylic acid compounds and not by mixing separately prepared Ca and Li soaps or Ca and Li complex soaps.
  • the calcium hydroxide present in excess in conjunction with the Ca / Li complex fat buffers the acidic aging products without significant alkaline hydrolysis of the ester groups of the thermoplastic elastomer due to the comparatively low alkalinity and dissociation of calcium hydroxide.
  • the Ca / Li complex fats are preferably to be prepared in such a way that the amount of lithium compound and calcium compound required for the reaction is dimensioned to ensure that the more reactive lithium compound (presently preferably LiOH) reacted as completely as possible with the carboxyl groups of the carboxylic acids used and the remaining, not reacted with the lithium compound carboxyl groups quasi in excess with calcium compounds (in the present case preferably Ca (OH) 2 ) are reacted.
  • the more reactive lithium compound presently preferably LiOH
  • Ca (OH) 2 calcium compounds
  • the calcium soaps present in excess should lead to a reduced mechanical stability or lower yield point after the entry of the cardan shafts and thus to an improved supply of the friction points in the constant velocity joints.
  • the product formulation includes an additional complexing agent.
  • the composition according to the invention is therefore referred to as Ca / Li complex fat or Ca / Li complex soap fat and not as Ca / Li fat or Ca / Li soap fat.
  • the percentages by weight are based on the total composition and apply in each case independently of one another.
  • a constituent assigned to one of the groups a), b) c) or d) can not simultaneously be part of another group a) to d).
  • composition is further characterized by a calcium / lithium molar ratio of greater than 1.0 to 5.0 to 1, preferably 1.2 to 3.0 to 1, and more preferably 1.4 to 2.4 to 1, wherein the ratio is determined by all the calcium and lithium compounds present, ie it is, for example, the existing Ca (OH) 2 includes.
  • the thickener is used so that the composition contains so much thickening agent that a Konuspenetrationswert (Walkpenetration) of 265 to 385 mm / 10 (at 25 ° C), preferably 285 to 355 mm / 10, is obtained (determined according to DIN ISO 2137 or ASTM D 0217-97).
  • a Konuspenetrationswert Walkpenetration
  • Suitable base oils are customary lubricating oils which are liquid at room temperature.
  • the base oil preferably has a kinematic viscosity of 20 to 2500 mm 2 / s, in particular 40 to 500 mm 2 / s at 40 ° C.
  • the base oils can be classified as mineral oils or synthetic oils.
  • mineral oils e.g. considers naphthenic mineral oils and paraffinic mineral oils, according to API Group I classification.
  • Synthetic oils which may be mentioned are polyethers, esters, polyalphaolefins, polyglycols and alkylaromatics and mixtures thereof.
  • the polyether compound may have free hydroxyl groups, but may also be fully etherified or end groups esterified and / or prepared from a starting compound having one or more hydroxy and / or carboxyl groups (-COOH).
  • esters of an aromatic di-, tri- or tetracarboxylic acid with one or in mixture C2 to C22 alcohols, esters of adipic acid, sebacic acid, trimethylolpropane, neopentyl glycol, pentaerythritol or dipentaerythritol with aliphatic branched or unbranched, saturated or unsaturated C2 to C22-carboxylic acids, C18 dimer acid esters with C2 to C22 alcohols, complex esters, as individual components or in any desired mixture.
  • the Ca / Li soap is a mixture of calcium salts and lithium salts of one or more saturated or unsaturated mono-carboxylic acids having 10 to 32 carbon atoms, optionally substituted, in particular having 12 to 22 carbon atoms, more preferably corresponding hydroxycarboxylic acids.
  • Suitable carboxylic acids are, for example, lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid or behenic acid, and preferably 12-hydroxystearic acid.
  • free acid group and corresponding lower alcohol esters can be used with saponification, z.
  • the complexing agent (a) is preferred.
  • Particularly suitable mono-carboxylic acids are acetic acid and propionic acid.
  • hydroxybenzoic acids such as parahydroxybenzoic acid, salicylic acid, 2-hydroxy-4-hexylbenzoic acid, metahydroxybenzoic acid, 2,5-dihydroxybenzoic acid (gentisic acid), 2,6-dihydroxybenzoic acid (gammaresorcylic acid) or 4-hydroxy-4-methoxybenzoic acid.
  • Particularly suitable dicarboxylic acids are adipic acid (C 6 H 10 O 4 ), sebacic acid (C 10 H 18 O 4 ), azelaic acid (C 9 H 16 O 4 ) and / or 3- tert.
  • Butyl adipic acid (C 10 H 18 O 4 ).
  • borate (b) for example, metaborate, diborate, tetraborate or orthoborate, such as monolithium orthoborate or calcium orthoborate, can be used.
  • Suitable phosphates are alkali metal (preferably lithium) and alkaline earth metal (preferably calcium) dihydrogen phosphate, hydrogen phosphate or pyrophosphate.
  • bentonites such as montmorillonite (whose sodium ions may be exchanged or partially exchanged by ammonium ions), aluminosilicates, clays, silicic acid (eg Aerosil), copper phthalocyanines or else di- and polyureas may additionally be used as co-thickeners.
  • compositions according to the invention also contain additives as additives.
  • additives in the context of the invention are antioxidants, anti-wear agents, corrosion inhibitors, detergents, dyes, lubricity improvers, viscosity additives, friction reducers and high-pressure additives.
  • the grease compositions of this invention contain conventional anti-corrosive, oxidative, and anti-metallope additives which act as chelates, radical scavengers, UV transducers, reaction layer formers, and the like.
  • solid lubricants for example, polymer powders such as polyamides, polyimides or PTFE, graphite, metal oxides, boron nitride, metal sulfides such as molybdenum disulfide, tungsten disulfide or mixed sulfides based on tungsten, molybdenum, bismuth, tin and zinc, inorganic salts of alkali and alkaline earth metals, such as calcium carbonate, sodium and calcium phosphates.
  • polymer powders such as polyamides, polyimides or PTFE, graphite, metal oxides, boron nitride, metal sulfides such as molybdenum disulfide, tungsten disulfide or mixed sulfides based on tungsten, molybdenum, bismuth, tin and zinc
  • metal sulfides such as molybdenum disulfide, tungsten disulfide or mixed sulfides
  • Solid lubricants can be divided into the following four groups: layered structure compounds such as molybdenum disulfide and tungsten disulfide, graphite, hexagonal boron nitride, and some metal halides; oxidic and hydroxidic compounds of the transition and alkaline earth metals or their carbonates or phosphates; soft metals and / or plastics.
  • layered structure compounds such as molybdenum disulfide and tungsten disulfide, graphite, hexagonal boron nitride, and some metal halides
  • oxidic and hydroxidic compounds of the transition and alkaline earth metals or their carbonates or phosphates soft metals and / or plastics.
  • the sealing material including capsule materials which are in contact with the lubricant, according to a further embodiment of the invention is a polyester, preferably a thermoplastic copolyester elastomer comprising hard segments having crystalline properties and a melting point above 100 ° C and soft segments having a glass transition temperature of less than 20 ° C, preferably less than 0 ° C, have.
  • thermoplastic polyesters TPE
  • Arnitel® from DSM
  • Hytrel® from DuPont
  • PIBI-Flex® from P-Group.
  • WO 85/05421 Al describes such a suitable polyetherester material for bellows, based on polyether esters. Also, a bellows body as an injection molded part of a thermoplastic polyester elastomer is in the DE 35 08 718 A called.
  • the hard segments are e.g. derived from at least one aliphatic diol or polyol and at least one aromatic di- or polycarboxylic acid, the soft segments having elastic properties e.g. from ether polymers such as e.g. Polyalkylenoxidglykolen or non-aromatic dicarboxylic acids and aliphatic diols. Such compounds are e.g. referred to as Copolyetherester.
  • Copolyetherester compositions are used in components, for example, when the component made therefrom is subjected to frequent deformation or vibration.
  • Very well known applications in this context are bellows or bellows for the protection of drive shafts and transmission shafts, joint columns and suspension units as well as sealing rings. In such applications, the material also frequently or continuously comes into contact with lubricants such as greases.
  • the bellows is produced by injection blow molding, injection extrusion or extrusion blow molding, with annular rubber parts possibly being placed in the mold at the two future clamping points.
  • the resistance of the copolyetherester composition to the effects of oils and fats is one of the reasons for their wide use in addition to their ease of processing into relatively complex geometries.
  • a grease according to the present invention is preferably, but not exclusively, used for the lubrication of constant velocity joints (constant velocity joint CVJ), as used for example in drive shafts for motor vehicles and machines.
  • the task of a constant velocity joint is the uniform transmission of torque from a shaft to an angularly mounted second shaft at diffraction angles of up to 50 °.
  • constant velocity joints are used in particular in front-wheel drive and all-wheel drive vehicles and generally divided into two groups: constant velocity fixed joints and constant velocity sliding joints.
  • the group of constant velocity joints includes Ball Joints BJ, Undercut Free UJ Gauges
  • the group of gearchange joints are Tripod Joints (TJ), Double Offset joints (Double offset joints "DOJ") and cross-cut compound joints ("Cross Groove Joins" LJ)
  • constant velocity joints In contrast to the constant velocity joints, constant velocity joints not only provide uniform torque transmission at different bend angles, but also provide length compensation of the drive shaft connecting the transmission to the wheel ,
  • the production of greases can be done as follows, for example:
  • the thickener is synthesized in situ in the base oil, preferably under pressure and at elevated temperature in a closed reaction vessel, such as an autoclave.
  • the preparations of the example formulations A-C are based on known and customary processes for preparing corresponding thickeners.
  • Example D and G The preparation of the example formulations was carried out analogously to the example formulation E with modification of the LiOH and Ca (OH) 2 amounts.
  • Table 1 Formulation Examples ⁇ / b> Example A Example B Example C Example D Example E Example G Reference A Reference B Reference C invention invention invention thickener LiX + Ca LiX + CaX LiX / CaX CaX / LiX CaX / LiX manufacturing 1/1 compound 1/1 compound in situ in situ in situ Amount of Ca [mol%] 0010 0019 0011 0016 0020 0024 Molar amount of Li [mol%] 0033 0033 0028 0016 0015 0012 Factor Substance% Ca / Li 12:31 12:58 12:39 1:01 1:35 2:04 1.

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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)
EP09009621.5A 2008-07-25 2009-07-24 Graisses complexes de calcium/lithium, joints de transmission homocinétiques encapsulés comprenant de telles graisses de lubrification, leur utilisation et leur procédé de fabrication Active EP2154229B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI200931944T SI2154229T1 (sl) 2008-07-25 2009-07-24 Kalcij/litijeve kompleksne masti, vkapsuliran sinhroni zgib, ki vsebuje takšne mazalne masti, njihova uporaba ter postopek za njihovo izdelavo
PL09009621T PL2154229T3 (pl) 2008-07-25 2009-07-24 Kompleksowe smary wapniowe/litowe, osłonięty przegub równobieżny zawierający takiego rodzaju smary stałe, ich zastosowanie i sposób wytwarzania
HRP20190536TT HRP20190536T1 (hr) 2008-07-25 2019-03-19 Kalcij/litijeve kompleksne masti, homokinetički zglob u kapsuli sa sadržajem takvih mazivih masti, njihova primjena i postupak za njihovu proizvodnju

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008034959A DE102008034959A1 (de) 2008-07-25 2008-07-25 Calcium/Lithium-Komplexfette und gekapseltes Gleichlaufgelenk enthaltend diese sowie deren Anwendung

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EP2154229A2 true EP2154229A2 (fr) 2010-02-17
EP2154229A3 EP2154229A3 (fr) 2011-09-07
EP2154229B1 EP2154229B1 (fr) 2019-01-02

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US (1) US8603958B2 (fr)
EP (1) EP2154229B1 (fr)
DE (1) DE102008034959A1 (fr)
DK (1) DK2154229T3 (fr)
ES (1) ES2716229T3 (fr)
HR (1) HRP20190536T1 (fr)
HU (1) HUE043744T2 (fr)
PL (1) PL2154229T3 (fr)
PT (1) PT2154229T (fr)
SI (1) SI2154229T1 (fr)
TR (1) TR201903469T4 (fr)

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WO2014096258A1 (fr) * 2012-12-21 2014-06-26 Shell Internationale Research Maatschappij B.V. Composition de graisse
RU2556942C2 (ru) * 2013-12-05 2015-07-20 федеральное государственное автономное образовательное учреждение высшего образования "Южный федеральный университет" Антиобледенительная пластичная смазка
WO2016124653A1 (fr) * 2015-02-06 2016-08-11 Shell Internationale Research Maatschappij B.V. Composition de graisse
EP2462209B1 (fr) 2009-08-05 2018-10-10 Skf Bv Composition de graisse et procédés de fabrication

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JP2012502139A (ja) * 2008-09-05 2012-01-26 オーエムジー、アメリカズ、インク 過塩基性カルボン酸金属塩複合グリースおよび製造方法
US11473032B2 (en) * 2010-02-02 2022-10-18 Fuchs Petrolub Se Constant velocity joint having a boot
US20170145340A1 (en) * 2010-02-02 2017-05-25 Fuchs Petrolub Se Constant Velocity Joint Having A Boot
WO2012004198A1 (fr) * 2010-07-05 2012-01-12 Shell Internationale Research Maatschappij B.V. Procédé pour la fabrication d'une composition de graisse
RU2489480C1 (ru) * 2011-12-30 2013-08-10 Учреждение Российской академии наук Южный научный центр РАН (ЮНЦ РАН) Пластичная смазка для высокотемпературных узлов трения
US9222050B1 (en) * 2012-02-29 2015-12-29 Rand Innovations, Llc Lubricant composition, method of preparing the same, and firearm cleaner including the same
CN102746925B (zh) * 2012-06-27 2014-12-10 安庆市中天石油化工有限公司 一种专用于混凝土泵车的润滑脂及其制备方法
US9228151B1 (en) * 2012-11-07 2016-01-05 Rand Innovations, Llc Lubricant additive composition, lubricant, and method of preparing the same
DE112016006171B4 (de) * 2016-01-07 2024-07-18 Autonetworks Technologies, Ltd. Antikorrosives Mittel und mit Anschluss versehener elektrischer Draht
US10626343B1 (en) * 2017-11-17 2020-04-21 Brave Response Shooting, LLC Animal-based hydrocarbon firearm lubricant
CN110452759A (zh) * 2018-05-07 2019-11-15 天津科技大学 一种铋基润滑脂的制备方法及所制得的产品
CN109337746B (zh) * 2018-11-23 2022-02-15 东莞市唯纳孚润滑科技有限公司 一种行星减速机润滑脂的制备方法
CN110028996A (zh) * 2019-03-15 2019-07-19 杭州颢熙科技有限公司 一种润滑脂组合物
DE102019110921A1 (de) * 2019-04-26 2020-10-29 Fuchs Petrolub Se Schmierfette umfassend Metallseifen und Metallkomplexseifen auf Basis von R-10-Hydroxyoctadecansäure
CN110776980B (zh) * 2019-09-24 2022-06-14 佛山市南海区里水镇经济促进局 一种链条高低温润滑脂及其制备方法和应用
CN112063434A (zh) * 2020-09-18 2020-12-11 刘佩仓 一种航空用高温润滑脂及生产方法
CN113122353A (zh) * 2021-04-01 2021-07-16 于长明 一种起重机伸缩臂保养专用油及其制备方法
CN113355148B (zh) * 2021-05-28 2022-12-20 中国石油化工股份有限公司 一种用于汽车驱动轴轮毂轴承结合面的润滑剂及其制法
CN115232659A (zh) * 2022-02-08 2022-10-25 中国石油化工股份有限公司 一种汽车服务市场等速万向节外球笼润滑脂组合物及其制备方法
CN114907904A (zh) * 2022-05-31 2022-08-16 重庆海德世拉索系统（集团）有限公司 一种用于汽车电动背门电动撑杆的润滑脂及制备方法
CN116218216B (zh) * 2023-03-21 2024-05-17 电子科技大学 一种高储能密度聚酰亚胺基复合材料及其制备方法
CN116948723B (zh) * 2023-07-06 2025-06-06 中国石油化工股份有限公司 一种润滑脂组合物及其制备方法
CN118146851B (zh) * 2023-12-27 2025-11-18 太原理工大学 一种稀土基润滑脂及其制备方法
CN118513014B (zh) * 2024-07-22 2024-11-08 天津市第二人民医院（天津市传染病医院） 一种具有抗凝血作用的胆红素吸附剂及其制备方法和应用

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EP2462209B1 (fr) 2009-08-05 2018-10-10 Skf Bv Composition de graisse et procédés de fabrication
WO2014096258A1 (fr) * 2012-12-21 2014-06-26 Shell Internationale Research Maatschappij B.V. Composition de graisse
RU2556942C2 (ru) * 2013-12-05 2015-07-20 федеральное государственное автономное образовательное учреждение высшего образования "Южный федеральный университет" Антиобледенительная пластичная смазка
WO2016124653A1 (fr) * 2015-02-06 2016-08-11 Shell Internationale Research Maatschappij B.V. Composition de graisse
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HUE043744T2 (hu) 2019-09-30
US8603958B2 (en) 2013-12-10
DK2154229T3 (en) 2019-04-15
US20100048436A1 (en) 2010-02-25
PL2154229T3 (pl) 2019-08-30
DE102008034959A1 (de) 2010-01-28
HRP20190536T1 (hr) 2019-05-31
TR201903469T4 (tr) 2019-04-22
ES2716229T3 (es) 2019-06-11
EP2154229A3 (fr) 2011-09-07
EP2154229B1 (fr) 2019-01-02
SI2154229T1 (sl) 2019-06-28
PT2154229T (pt) 2019-04-24

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