EP3130653B1 - Composition for minimal lubrication and its use - Google Patents

Composition for minimal lubrication and its use Download PDF

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Publication number
EP3130653B1
EP3130653B1 EP15002409.9A EP15002409A EP3130653B1 EP 3130653 B1 EP3130653 B1 EP 3130653B1 EP 15002409 A EP15002409 A EP 15002409A EP 3130653 B1 EP3130653 B1 EP 3130653B1
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EP
European Patent Office
Prior art keywords
composition
alcohol
aliphatic
lubricant composition
sulfurized
Prior art date
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EP15002409.9A
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German (de)
French (fr)
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EP3130653A1 (en
Inventor
Thomas Frank
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Fuchs SE
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Fuchs Petrolub SE
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Priority to PL15002409T priority Critical patent/PL3130653T3/en
Application filed by Fuchs Petrolub SE filed Critical Fuchs Petrolub SE
Priority to ES15002409T priority patent/ES2709344T3/en
Priority to EP15002409.9A priority patent/EP3130653B1/en
Priority to HUE15002409A priority patent/HUE042547T2/en
Priority to KR1020187006975A priority patent/KR102057954B1/en
Priority to CA2995517A priority patent/CA2995517C/en
Priority to RU2019100454A priority patent/RU2019100454A/en
Priority to MYPI2018000202A priority patent/MY184087A/en
Priority to SG11201801166TA priority patent/SG11201801166TA/en
Priority to PCT/EP2016/001394 priority patent/WO2017036578A1/en
Priority to US15/751,900 priority patent/US20180237712A1/en
Priority to MX2018001855A priority patent/MX2018001855A/en
Priority to CN201680055295.XA priority patent/CN108138072B/en
Priority to AU2016316437A priority patent/AU2016316437B2/en
Priority to JP2018526999A priority patent/JP2018523748A/en
Publication of EP3130653A1 publication Critical patent/EP3130653A1/en
Priority to IL257424A priority patent/IL257424A/en
Priority to PH12018500308A priority patent/PH12018500308A1/en
Priority to ZA2018/01649A priority patent/ZA201801649B/en
Priority to HK18113750.3A priority patent/HK1254738A1/en
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Publication of EP3130653B1 publication Critical patent/EP3130653B1/en
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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
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
    • 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
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/0215—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms 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
    • C10M2207/125—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
    • 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
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • 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
    • C10M2215/08—Amides
    • C10M2215/082—Amides containing hydroxyl groups; Alkoxylated derivatives
    • 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
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
    • 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
    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
    • C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • 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
    • C10N2020/071—Branched chain compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/09—Characteristics associated with water
    • C10N2020/091—Water solubility
    • 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
    • C10N2030/24—Emulsion properties
    • 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
    • C10N2030/56—Boundary lubrication or thin film lubrication
    • 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
    • C10N2040/20—Metal working
    • 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
    • C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
    • C10N2060/06—Chemical after-treatment of the constituents of the lubricating composition by epoxydes or oxyalkylation reactions

Definitions

  • the invention relates to a lubricant composition for minimal quantity lubrication in metalworking and to the use of the lubricant composition therefor.
  • MQL minimum quantity lubrication
  • MMKS minimal quantity cooling lubrication
  • the minimum quantity lubrication offers a significant reduction in the supply and disposal technology for the cooling lubricant compared to wet processing, which enables longer service life and reduced process time. Furthermore, follow-up processes for cleaning the workpieces and also the tool can be reduced. Since the minimum quantity lubrication means loss lubrication, only new, ie non-recycled or reconditioned lubricant is used, so that can be dispensed biocides, fungicides and other additives.
  • a composition based on a fatty alcohol for aluminum working with minimum quantity lubrication disclosed EP 2 397 535 A1 The alcohol compound has 1 to 8 hydroxyl groups and 2 to 27 carbon atoms and is contained in the composition in an amount of 16 to 100% by weight. The remainder may be a mineral oil or synthetic oil, also ester oil. To improve the lubricating power of this composition, various additives are listed, which can be added to the composition.
  • Water-miscible metalworking fluids that are water-miscible are considered unsuitable for minimum-quantity lubrication because they do not have the required lubrication or flash point.
  • a lubricant based on a saturated aliphatic monohydric C 14-18 alcohol designed for cold working aluminum as a film on the surface of the workpiece WO 91/06619 heating the workpiece so that the lubricant evaporates.
  • a lubricant composition according to the invention for minimal quantity lubrication in metalworking is composed to a major proportion of an aliphatic C 16-24 alcohol, to which a small proportion of emulsifier is added, so that the lubricant can be emulsified with water.
  • the tool and the processing space eg, machine interior
  • a preferred emulsifier is a glycolic acid alkoxylate alkyl ether, the proportion of which in the composition ranges from 0.05 to 5% by weight, based on the total weight of the composition.
  • mixtures of fatty alcohol polyalkylene glycol ethers and Glycolklarealkoxylat alkyl ethers are used as emulsifier with a weight fraction of 0.05 to 5 wt .-%, based on the total weight of the composition.
  • the aliphatic C 16-24 alcohol is then present in each case in a 100% complement of the composition.
  • the fatty alcohol polyalkylene glycol ether has the formula (I) R * - [(CH 2 CH 2 O) x - (CH 2 CH (CH 3 ) O) y ] -R 1 (I) wherein R 1 is an aliphatic, branched or linear C 16-18 alkyl or alkenyl radical. R * may be a hydroxyl group.
  • the variables x and y can be 0 to 10, provided that the sum x + y is from 1 to 10.
  • the polyalkylene glycol ether may also contain both ethylene oxide units and propylene oxide units. Both the respective proportions and the order of the units (eg alternating or blockwise) can vary here.
  • the fatty alcohol polyalkylene glycol ether is z. B. 1 wt .-% is particularly preferred.
  • the lubricant composition with 1 wt .-% fatty alcohol polyalkylene glycol ether on a suitable Emulgatorbalance with sufficiently good Anemulgiereigenschaften without negatively affecting the separation behavior in the cleaning system (demulsifying). While too low an emulsifier concentration results in less cleanability of tool, workpiece and machine room, too high concentrations prevent the oil separation in the cleaning system.
  • the glycolic acid alkoxylate alkyl ether (also ether carboxylic acid) has the formula (II) R 2 -O- [(CH 2 CH 2 O) x - (CH 2 CH (CH 3 ) O) y ] -CH 2 -COOH (II) wherein R 2 is an aliphatic, branched or linear C 6-20 alkyl or alkenyl radical.
  • R 2 is an aliphatic, branched or linear C 6-20 alkyl or alkenyl radical.
  • Illustrative glycolic acid alkoxylate alkyl ethers are poly (oxy-1,2-ethanediyl), ⁇ - (carboxymethyl) - ⁇ -hydroxy, C 10-16 and C 12-20 -unsaturated alkyl ethers (eg CAS No. 68954-89-2 ), Poly (oxy-1,2-ethanediyl), ⁇ - (carboxymethyl) - ⁇ -hydroxy, C 16-18 and C 18 -unsaturated alkyl ethers ( CAS No. 227310-69-2 ), Poly (oxy-1,2-ethanediyl), ⁇ - (carboxymethyl) - ⁇ -octyloxy- ( CAS No. 53563-70-5 ) or poly (oxy-1,2-ethanediyl), ⁇ - (carboxymethyl) - ⁇ -hexyloxy- ( CAS No. 105391-15-9 ).
  • the C 16-24 aliphatic alcohol used in the lubricant composition of the present invention may be a branched alcohol, preferably a Guerbet alcohol (long chain alkyl substituted in ⁇ -position with respect to the primary OH group), such as e.g. For example, 2-hexyl-1-decanol or 2-octyl-1-dodecanol.
  • the latter C 20 -alcohol can preferably be used become.
  • Such alcohols can be used at lower application temperatures because of the lower pour point and lower tendency to stick due to complete saturation than is possible with natural linear alcohols.
  • a lubricant composition designed according to the invention can consist of only two components, the basic C 16-24 -alcohol and the emulsifier.
  • the lubricant composition additionally contains from 0.05 to 5% by weight, based on the total weight of the composition, of fatty acid alkanolamide or alkoxylated fatty acid alkanolamide of the formula (III) R 3 - (CO) -NR '- (CH 2 ) 2 -O - [(CH 2 CH 2 O) x - (CH 2 CH (CH 3 ) O) y ] -R "(III) wherein R 3 is an aliphatic, linear or branched C 5-23 alkyl or alkenyl radical and R ', R "are independently hydrogen or an aliphatic, linear or branched, substituted or unsubstituted alkyl or alkenyl radical are each selected from 0 to 10, so as above pure ethoxylated, purely propoxylated and mixed ethoxylated and propoxylated compounds are included, in which case the sum x + y can be from
  • a fatty acid alkanolamide or alkoxylated fatty acid alkanolamide contributes to an improved corrosion protection effect of the lubricant composition and can positively influence the cleanability of the workpiece or the machine due to the emulsifying properties.
  • a proportion of each performance additive based on the total weight of the composition is a maximum of 15 wt .-%, wherein the proportion of the sum of the performance additives based on the total weight of the composition does not exceed 30 wt .-%.
  • a lubricant composition according to the invention can thus be used for minimum quantity lubrication in metalworking, with residues of the lubricant composition remaining on surfaces of the workpiece and the tool being washable with water.

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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)

Description

Die Erfindung betrifft eine Schmiermittelzusammensetzung zur Minimalmengenschmierung bei der Metallbearbeitung und die Verwendung der Schmiermittelzusammensetzung hierfür.The invention relates to a lubricant composition for minimal quantity lubrication in metalworking and to the use of the lubricant composition therefor.

Bei metallbearbeitenden Prozessen wird unterschieden zwischen einer üblichen Nassbearbeitung, bei der das Zerspanungswerkzeug mit einem Kühlschmierstoff überflutet wird, und der Trockenbearbeitung ohne Schmierung, bei der die im Zerspanungsprozess entstehende Wärme hauptsächlich an Span, Werkzeug und Werkstück abgegeben werden. Während die Trockenbearbeitung auf Schmiermittel verzichtet, kann die in das Werkstück strömende Wärme die Bauteilgenauigkeit nachteilig beeinflussen, auch kann das Werkzeug infolge der erhöhten thermischen Belastung früher verschleißen. Die bei der Nassbearbeitung eingesetzten Kühlschmierstoffe sorgen in erster Linie für Kühlung, Schmierung und den Späneabtransport, haben jedoch gleichzeitig Einfluss auf Nebenzeiten im Produktionsprozess durch Auffangen, Aufarbeiten oder Entsorgen der Kühlschmierstoffe, und damit auch auf die Kosten für deren Einkauf, Aufarbeitung und Entsorgung. Ferner sind Umwelt- und Gesundheitsschutz zu beachten.In metal-working processes, a distinction is made between conventional wet machining, in which the cutting tool is flooded with a cooling lubricant, and dry machining without lubrication, in which the heat generated in the cutting process is mainly dissipated to the chip, tool and workpiece. While dry machining dispenses with lubricant, the heat flowing into the workpiece can adversely affect component accuracy, and the tool may wear earlier due to increased thermal stress. The cooling lubricants used in wet machining primarily provide cooling, lubrication and chip removal, but at the same time have an influence on non-productive times by collecting, processing or disposing of the cooling lubricants, and thus also on the costs of their purchasing, processing and disposal. Furthermore, environmental and health protection must be taken into account.

Einen Mittelweg zwischen Nassbearbeitung und Trockenbearbeitung bildet die Minimalmengenschmierung (MMS) oder auch Minimalmengen-Kühlschmierung (MMKS). Genaue Definitionen für die "Minimalmengen" gibt es nicht, je nach Quelle werden bis zu 20 ml/h, 50 ml/h, 150 ml/h, oder manchmal auch bis zu 500 ml/h als MMS bezeichnet - in allen Fällen liegt aber ein deutlicher Unterschied zu üblichen Mengen bei der Nassbearbeitung von 30.000 bis 60.000 ml/h oder auch deutlich mehr vor.The minimum quantity lubrication (MQL) or minimal quantity cooling lubrication (MMKS) forms a middle ground between wet machining and dry machining. Exact definitions for the "minimum amounts" do not exist, depending on the source up to 20 ml / h, 50 ml / h, 150 ml / h, or sometimes up to 500 ml / h referred to as MMS - but in all cases a clear difference to the usual amounts in the wet processing of 30,000 to 60,000 ml / h or significantly more before.

Die Minimalmengenschmierung bietet gegenüber der Nassbearbeitung eine deutliche Reduzierung der Ver- und Entsorgungstechnik für den Kühlschmierstoff, ermöglicht höhere Standzeiten und reduzierte Prozessdauer. Ferner können Folgeprozesse für das Reinigen der Werkstücke und auch des Werkzeugs reduziert werden. Da die Minimalmengenschmierung Verlustschmierung bedeutet, wird nur neues, d. h. nicht rezykliertes bzw. wiederaufbereitetes Schmiermittel verwendet, sodass auf Biozide, Fungizide und andere Additive verzichtet werden kann.The minimum quantity lubrication offers a significant reduction in the supply and disposal technology for the cooling lubricant compared to wet processing, which enables longer service life and reduced process time. Furthermore, follow-up processes for cleaning the workpieces and also the tool can be reduced. Since the minimum quantity lubrication means loss lubrication, only new, ie non-recycled or reconditioned lubricant is used, so that can be dispensed biocides, fungicides and other additives.

Allerdings bestehen erhöhte Anforderungen an das Schmiermittel, das auf Werkstückmaterial, Maschinenparameter und Werkzeugmaterial abgestimmt sein muss, um optimale Ergebnisse zu erzielen.However, there are increased requirements for the lubricant, which must be matched to workpiece material, machine parameters and tool material in order to achieve optimum results.

Im Allgemeinen werden für MMS entweder synthetische Esteröle oder Fettalkohole eingesetzt, die für den gewünschten Bearbeitungsbereich in Bezug auf Verdampfung und Flammpunkt zusammengesetzt sind. Dabei werden synthetische Ester für Zerspanungsprozesse bevorzugt, bei denen eine effektive Schmierung am bedeutendsten ist. Bei Verwendung von Fettalkoholen steht weniger die Schmierung als die Kühlung im Vordergrund.In general, for MMS, either synthetic ester oils or fatty alcohols are used, which are composed for the desired processing range in terms of evaporation and flash point. Synthetic esters are preferred for machining processes where effective lubrication is the most significant. When using fatty alcohols is less the lubrication than the cooling in the foreground.

Eine Zusammensetzung auf Basis eines Fettalkohols zur Aluminiumbearbeitung mit Minimalmengenschmierung offenbart EP 2 397 535 A1 . Die Alkoholverbindung hat 1 bis 8 Hydroxylgruppen und 2 bis 27 Kohlenstoffatome und ist in der Zusammensetzung in einer Menge von 16 bis 100 Gew.-% enthalten. Der Rest kann ein Mineralöl oder synthetisches Öl, auch Esteröl, sein. Zur Verbesserung der Schmierkraft dieser Zusammensetzung werden verschiedene Additive aufgezählt, die der Zusammensetzung zugesetzt werden können.A composition based on a fatty alcohol for aluminum working with minimum quantity lubrication disclosed EP 2 397 535 A1 , The alcohol compound has 1 to 8 hydroxyl groups and 2 to 27 carbon atoms and is contained in the composition in an amount of 16 to 100% by weight. The remainder may be a mineral oil or synthetic oil, also ester oil. To improve the lubricating power of this composition, various additives are listed, which can be added to the composition.

Es hat sich gezeigt, dass auch bei der Minimalmengenschmierung geringe Mengen des Kühlschmierstoffes auf dem Werkstück um die Zerspanungsstelle und an dem Werkzeug verbleiben. Die Schmiermittelreste an dem Werkstück können zwar einerseits Korrosion an der Bearbeitungsstelle vermeiden helfen, können sich andererseits aber auch nachteilig für nachfolgende Produktionsprozesse wie Schweißen, Kleben, Lackieren etc. auswirken und machen daher unter Umständen einen Reinigungsschritt erforderlich.It has been shown that even with minimum quantity lubrication, small amounts of the cooling lubricant remain on the workpiece around the cutting point and on the tool. On the one hand, the residues of lubricant on the workpiece can, on the one hand, help to avoid corrosion at the processing point, but on the other hand can also have a negative effect on subsequent production processes such as welding, gluing, painting, etc., and may therefore necessitate a cleaning step.

Wassermischbare Metallbearbeitungsflüssigkeiten, die sich mit Wasser abreinigen ließen, gelten als ungeeignet für die Minimalmengenschmierung, da sie nicht die dafür erforderliche Schmierung oder den erforderlichen Flammpunkt aufweisen.Water-miscible metalworking fluids that are water-miscible are considered unsuitable for minimum-quantity lubrication because they do not have the required lubrication or flash point.

Zum Abreinigen eines Schmiermittels basierend auf einem gesättigten aliphatischen monohydrischen C14-18 Alkohol, das zur kalten Bearbeitung von Aluminium als Film auf der Oberfläche des Werkstücks ausgebildet ist, beschreibt WO 91/06619 das Erhitzen des Werkstücks, sodass das Schmiermittel verdampft.For cleaning a lubricant based on a saturated aliphatic monohydric C 14-18 alcohol designed for cold working aluminum as a film on the surface of the workpiece WO 91/06619 heating the workpiece so that the lubricant evaporates.

US 2003/0181340 A1 offenbart Schmiermittel für Metall bearbeitende Prozesse. US 2003/0181340 A1 discloses lubricants for metal working processes.

Ausgehend von diesem Stand der Technik ist es Aufgabe der vorliegenden Erfindung, einen Minimalmengenschmierstoff bereitzustellen, der sich ohne Erhitzen und nicht nur vom Werkstück, sondern auch vom Werkzeug und von der Werkzeugmaschine einfach abreinigen lässt.Based on this prior art, it is an object of the present invention to provide a minimum quantity lubricant that can be easily cleaned without heating and not only from the workpiece, but also from the tool and the machine tool.

Diese Aufgabe wird durch eine Schmiermittelzusammensetzung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a lubricant composition having the features of claim 1.

Weiterbildungen der Schmiermittelzusammensetzung sind in den Unteransprüchen ausgeführt.Further developments of the lubricant composition are set forth in the subclaims.

Das einfache Abreinigen bei Verwendung der Schmiermittelzusammensetzung wird mit den Merkmalen des unabhängigen Anspruchs 7 offenbart.The simple cleaning using the lubricant composition is disclosed with the features of independent claim 7.

Eine erfindungsgemäße Schmiermittelzusammensetzung zur Minimalmengenschmierung bei der Metallbearbeitung setzt sich zu einem Hauptanteil aus einem aliphatischen C16-24 Alkohol zusammen, dem ein geringer Anteil Emulgator zugesetzt ist, sodass das Schmiermittel mit Wasser emulgierbar ist. Auf diese Weise können nicht nur das Werkstück, sondern auch das Werkzeug und der Bearbeitungsraum (z. B. Maschineninnenraum) einfach von den Resten der erfindungsgemäßen Schmiermittelzusammensetzung durch Emulgierung mit Wasser entfernt werden. Allerdings ist darauf zu achten, dass die Schmiermittelzusammensetzung bei Lagerung und Zufuhr zum Werkzeug nicht mit Wasser in Berührung kommen kann.A lubricant composition according to the invention for minimal quantity lubrication in metalworking is composed to a major proportion of an aliphatic C 16-24 alcohol, to which a small proportion of emulsifier is added, so that the lubricant can be emulsified with water. In this way, not only the workpiece, but also the tool and the processing space (eg, machine interior) can be easily removed from the residues of the lubricant composition of the invention by emulsification with water. However, care must be taken that the lubricant composition can not come into contact with water during storage and supply to the tool.

Ein bevorzugter Emulgator ist ein Glycolsäurealkoxylat-Alkylether, dessen Anteil in der Zusammensetzung in einem Bereich von 0,05 bis 5 Gew.-%, bezogen auf das Gesamtgewicht der Zusammensetzung, liegt. Es ist aber auch denkbar, dass Mischungen von Fettalkohol-Polyalkylenglycolether und Glycolsäurealkoxylat-Alkylether als Emulgator mit einem Gewichtsanteil von 0,05 bis 5 Gew.-%, bezogen auf das Gesamtgewicht der Zusammensetzung, eingesetzt werden. Der aliphatische C16-24 Alkohol liegt dann jeweils in einem die 100 % der Zusammensetzung ergänzenden Anteil vor.A preferred emulsifier is a glycolic acid alkoxylate alkyl ether, the proportion of which in the composition ranges from 0.05 to 5% by weight, based on the total weight of the composition. However, it is also conceivable that mixtures of fatty alcohol polyalkylene glycol ethers and Glycolsäurealkoxylat alkyl ethers are used as emulsifier with a weight fraction of 0.05 to 5 wt .-%, based on the total weight of the composition. The aliphatic C 16-24 alcohol is then present in each case in a 100% complement of the composition.

Der Fettalkohol-Polyalkylenglycolether weist die Formel (I)

        R*-[(CH2CH2O)x-(CH2CH(CH3)O)y]-R1     (I)

auf, wobei R1 ein aliphatischer, verzweigter oder linearer C16-18 Alkyl- oder Alkenylrest ist. R* kann eine Hydroxylgruppe sein. Die Variablen x und y können 0 bis 10 sein unter der Voraussetzung, dass die Summe x+y von 1 bis 10 ist. Der Fettalkohol-Polyalkylenglycolether, trivial auch als Fettalkoholalkoxylat oder alkoxylierter Fettalkohol bezeichnet, kann nur aus Ethylenoxid-Einheiten (y=0) oder nur aus Propylenoxid-Einheiten (x=0) aufgebaut sein. Der Polyalkylenglycolether kann aber auch sowohl Ethylenoxid-Einheiten als auch Propylenoxid-Einheiten enthalten. Hierbei können sowohl die jeweiligen Anteile als auch Reihenfolge der Einheiten (z.B. alternierend oder blockweise) variieren. Ein nicht beschränkender beispielhafter rein ethoxylierter Fettalkohol kann auf Oleyl- oder Cetylalkohol basieren: HO-(CH2CH2O)n-R mit R =C18 oder C16 mit n=5 zum Beispiel. Abweichungen bezüglich Basisalkohol, Art und Anzahl der Alkoxy-Einheiten sind ohne weiteres denkbar.The fatty alcohol polyalkylene glycol ether has the formula (I)

R * - [(CH 2 CH 2 O) x - (CH 2 CH (CH 3 ) O) y ] -R 1 (I)

wherein R 1 is an aliphatic, branched or linear C 16-18 alkyl or alkenyl radical. R * may be a hydroxyl group. The variables x and y can be 0 to 10, provided that the sum x + y is from 1 to 10. The fatty alcohol polyalkylene glycol ether, trivially also referred to as fatty alcohol alkoxylate or alkoxylated fatty alcohol can be composed only of ethylene oxide units (y = 0) or only from propylene oxide units (x = 0). However, the polyalkylene glycol ether may also contain both ethylene oxide units and propylene oxide units. Both the respective proportions and the order of the units (eg alternating or blockwise) can vary here. A non-limiting example of purely ethoxylated fatty alcohol can be based on oleyl or cetyl alcohol: HO- (CH 2 CH 2 O) n -R with R = C 18 or C 16 with n = 5, for example. Deviations in the base alcohol, type and number of alkoxy units are readily conceivable.

Für den Fettalkohol-Polyalkylenglycolether ist z. B. 1 Gew.-% besonders bevorzugt. Vorteilhaft weist die Schmiermittelzusammensetzung mit 1 Gew.-% Fettalkohol-Polyalkylenglycolether eine geeignete Emulgatorbalance mit ausreichend guten Anemulgiereigenschaften auf, ohne dabei das Trennverhalten in der Reinigungsanlage (Demulgierverhalten) negativ zu beeinflussen. Während eine zu niedrige Emulgatorkonzentration eine geringere Abreinigbarkeit an Werkzeug, Werkstück und Maschinenraum zur Folge hat, verhindern zu hohe Konzentrationen die Ölabtrennung in der Reinigungsanlage.For the fatty alcohol polyalkylene glycol ether is z. B. 1 wt .-% is particularly preferred. Advantageously, the lubricant composition with 1 wt .-% fatty alcohol polyalkylene glycol ether on a suitable Emulgatorbalance with sufficiently good Anemulgiereigenschaften, without negatively affecting the separation behavior in the cleaning system (demulsifying). While too low an emulsifier concentration results in less cleanability of tool, workpiece and machine room, too high concentrations prevent the oil separation in the cleaning system.

Der Glycolsäurealkoxylat-Alkylether (auch Ethercarbonsäure) weist die Formel (II)

        R2-O-[(CH2CH2O)x-(CH2CH(CH3)O)y]-CH2-COOH     (II)

auf, wobei R2 ein aliphatischer, verzweigter oder linearer C6-20Alkyl- oder Alkenylrest ist. Auch hierbei können rein ethoxylierte, rein propoxylierte oder gemischt ethoxylierte und propoxylierte Verbindungen in Frage kommen, sodass x und y von 0 bis 10 ausgewählt sind unter der Voraussetzung, dass die Summe x+y = 1 bis 10 ist.The glycolic acid alkoxylate alkyl ether (also ether carboxylic acid) has the formula (II)

R 2 -O- [(CH 2 CH 2 O) x - (CH 2 CH (CH 3 ) O) y ] -CH 2 -COOH (II)

wherein R 2 is an aliphatic, branched or linear C 6-20 alkyl or alkenyl radical. Here, too, purely ethoxylated, purely propoxylated or mixed ethoxylated and propoxylated compounds can be considered, so that x and y are selected from 0 to 10, provided that the sum x + y = 1 to 10.

Beispielhafte Glycolsäurealkoxylat-Alkylether sind Poly(oxy-1,2-ethanediyl), α-(carboxymethyl)-ω-hydroxy-, C10-16 und C12-20-ungesättigte Alkylether (z.B. CAS Nr. 68954-89-2 ), Poly(oxy-1,2-ethanediyl), α-(carboxymethyl)-ω-hydroxy-, C16-18 und C18-ungesätigte Alkylether ( CAS Nr. 227310-69-2 ), Poly(oxy-1,2-ethanediyl), α-(carboxymethyl)-ω- octyloxy-( CAS Nr. 53563-70-5 ) oder Poly(oxy-1,2-ethanediyl), α-(carboxymethyl)-ω- hexyloxy-( CAS Nr. 105391-15-9 ).Illustrative glycolic acid alkoxylate alkyl ethers are poly (oxy-1,2-ethanediyl), α- (carboxymethyl) -ω-hydroxy, C 10-16 and C 12-20 -unsaturated alkyl ethers (eg CAS No. 68954-89-2 ), Poly (oxy-1,2-ethanediyl), α- (carboxymethyl) -ω-hydroxy, C 16-18 and C 18 -unsaturated alkyl ethers ( CAS No. 227310-69-2 ), Poly (oxy-1,2-ethanediyl), α- (carboxymethyl) -ω-octyloxy- ( CAS No. 53563-70-5 ) or poly (oxy-1,2-ethanediyl), α- (carboxymethyl) -ω-hexyloxy- ( CAS No. 105391-15-9 ).

Der in der erfindungsgemäßen Schmiermittelzusammensetzung eingesetzte aliphatische C16-24 -Alkohol kann ein verzweigter Alkohol sein, vorzugsweise ein Guerbet-Alkohol (langkettiger, in α-Stellung zur primären OH-Gruppe alkylsubstituierter Alkohol), wie z. B. 2-Hexyl-1-decanol oder 2-Octyl-1-dodecanol. Letzterer C20-Alkohol kann bevorzugt eingesetzt werden. Derartige Alkohole können aufgrund des niedrigeren Pourpoints und der geringeren Verklebungsneigung infolge vollständiger Sättigung bei tieferen Anwendungstemperaturen eingesetzt werden als dies bei natürlichen linearen Alkoholen möglich ist.The C 16-24 aliphatic alcohol used in the lubricant composition of the present invention may be a branched alcohol, preferably a Guerbet alcohol (long chain alkyl substituted in α-position with respect to the primary OH group), such as e.g. For example, 2-hexyl-1-decanol or 2-octyl-1-dodecanol. The latter C 20 -alcohol can preferably be used become. Such alcohols can be used at lower application temperatures because of the lower pour point and lower tendency to stick due to complete saturation than is possible with natural linear alcohols.

Eine erfindungsgemäß ausgeführte Schmiermittelzusammensetzung kann also aus nur zwei Komponenten bestehen, dem Basis-C16-24-Alkohol und dem Emulgator.Thus, a lubricant composition designed according to the invention can consist of only two components, the basic C 16-24 -alcohol and the emulsifier.

In einer weiteren Ausführungsform der Erfindung kann aber auch vorgesehen sein, dass die Schmiermittelzusammensetzung zusätzlich von 0,05 bis 5 Gew.-%, bezogen auf das Gesamtgewicht der Zusammensetzung, Fettsäurealkanolamid oder alkoxyliertes Fettsäurealkanolamid der Formel (III)

        R3-(CO)-NR'-(CH2)2-O-[(CH2CH2O)x-(CH2CH(CH3)O)y]-R"     (III)

aufweist, wobei R3 ein aliphatischer, linearer oder verzweigter C5-23 Alkyl- oder Alkenylrest ist und R',R" unabhängig voneinander Wasserstoff oder ein aliphatischer, linearer oder verzweigter, substituierter oder unsubstituierter Alkyl- oder Alkenylrest sind. x und y können jeweils von 0 bis 10 gewählt sein, sodass wie oben rein ethoxylierte, rein propoxylierte und gemischt ethoxylierte und propoxylierte Verbindungen umfasst sind, wobei hier die Summe x+y von 0 (nicht alkoxyliert) bis 10 sein kann. Der Zusatz eines Fettsäurealkanolamid oder alkoxyliertes Fettsäurealkanolamid trägt zu einer verbesserten Korrosionsschutzwirkung der Schmiermittelzusammensetzung bei und kann aufgrund der anemulgierenden Eigenschaften die Abreinigbarkeit des Werkstücks bzw. der Maschine positiv beeinflussen.In a further embodiment of the invention, however, it may also be provided that the lubricant composition additionally contains from 0.05 to 5% by weight, based on the total weight of the composition, of fatty acid alkanolamide or alkoxylated fatty acid alkanolamide of the formula (III)

R 3 - (CO) -NR '- (CH 2 ) 2 -O - [(CH 2 CH 2 O) x - (CH 2 CH (CH 3 ) O) y ] -R "(III)

wherein R 3 is an aliphatic, linear or branched C 5-23 alkyl or alkenyl radical and R ', R "are independently hydrogen or an aliphatic, linear or branched, substituted or unsubstituted alkyl or alkenyl radical are each selected from 0 to 10, so as above pure ethoxylated, purely propoxylated and mixed ethoxylated and propoxylated compounds are included, in which case the sum x + y can be from 0 (not alkoxylated) to 10. The addition of a fatty acid alkanolamide or alkoxylated fatty acid alkanolamide contributes to an improved corrosion protection effect of the lubricant composition and can positively influence the cleanability of the workpiece or the machine due to the emulsifying properties.

Ferner kann eine erfindungsgemäße Schmiermittelzusammensetzung zusätzlich zumindest ein Leistungsadditiv aufweisen, das aus einer Gruppe ausgewählt ist, die

  1. a) geschwefelte Verbindungen wie geschwefelte Olefine, geschwefelte Ester, geschwefelte Triglyceride und geschwefelte natürliche Esteröle,
  2. b) C12-24 Fettsäuren,
  3. c) ethoxyliertes natürliches Öl,
  4. d) KOH verseiftes Rübenöl,
  5. e) ethoxylierter saurer Phosphorsäureester
umfasst.Further, a lubricant composition of the present invention may further comprise at least one performance additive selected from a group consisting of
  1. a) sulfurized compounds such as sulfurized olefins, sulfurized esters, sulfurized triglycerides and sulfurized natural ester oils,
  2. b) C 12-24 fatty acids,
  3. c) ethoxylated natural oil,
  4. d) KOH saponified beet oil,
  5. e) ethoxylated acidic phosphoric acid ester
includes.

Im Folgenden werden Beispiele beschrieben, die explizit als nicht einschränkend zu verstehen sind:
Nicht einschränkende Beispiele für

  1. a) geschwefelte Verbindungen umfassen
    • geschwefelte Olefine wie etwa Di-tert-dodecyl-polysulfide (EG-Nr: 270-335-7), z. B. Di-tert-dodecyl-trisulfid oder Di-tert-dodecyl-pentasulfid,
    • geschwefelte Ester wie etwa Fettsäuren, Pflanzenöl-, Methylester, sulfuriert (EG-Nr. 276-337-4),
    • geschwefelte Triglyceride / geschwefelte natürliche Esteröle wie z.B. geschwefeltes Rüböl, geschwefeltes Lardöl, geschwefeltes Rizinusöl etc.,
  2. b) reine Fettsäuren wie z.B. Ölsäure oder ähnliche mit Kettenlängen im Bereich C12-24,
  3. c) ethoxylierte natürliche Öle wie z.B. Rizinusethoxylat mit 1 bis 10 Ethylenoxid-Einheiten,
  4. d) KOH verseiftes Rüböl,
  5. e) saurer Phosphorsäureester ethoxyliert, wie z.B. Oleyl alcohol ethoxylate phosphate ( CAS-Nr. 39464-69-2 ).
Here are some examples that are explicitly meant to be non-limiting:
Non-limiting examples of
  1. a) comprise sulphurised compounds
    • sulfurized olefins, such as di- tert -dodecyl polysulfides (EC No. 270-335-7), eg. As di-tert-dodecyl-trisulfide or di- tert- dodecyl-pentasulfide,
    • sulfurized esters such as fatty acids, vegetable oil, methyl esters, sulfurized (EC No. 276-337-4),
    • sulfurized triglycerides / sulfurized natural ester oils such as sulphurised rapeseed oil, sulphurised lard oil, sulphurised castor oil etc.,
  2. b) pure fatty acids such as oleic acid or the like with chain lengths in the range C 12-24 ,
  3. c) ethoxylated natural oils such as castor ethoxylate with 1 to 10 ethylene oxide units,
  4. d) KOH saponified rapeseed oil,
  5. e) acidic phosphoric acid ester ethoxylated, such as oleyl alcohol ethoxylate phosphate ( CAS-No. 39464-69-2 ).

Dabei beträgt ein Anteil jedes Leistungsadditivs bezogen auf das Gesamtgewicht der Zusammensetzung maximal 15 Gew.-%, wobei der Anteil der Summe der Leistungsadditive bezogen auf das Gesamtgewicht der Zusammensetzung 30 Gew.-% nicht übersteigt.In this case, a proportion of each performance additive based on the total weight of the composition is a maximum of 15 wt .-%, wherein the proportion of the sum of the performance additives based on the total weight of the composition does not exceed 30 wt .-%.

Eine erfindungsgemäße Schmiermittelzusammensetzung kann somit zur Minimalmengenschmierung bei der Metallbearbeitung verwendet werden, wobei an Oberflächen von Werkstück und Werkzeug verbleibende Reste der Schmiermittelzusammensetzung mit Wasser abwaschbar sind.A lubricant composition according to the invention can thus be used for minimum quantity lubrication in metalworking, with residues of the lubricant composition remaining on surfaces of the workpiece and the tool being washable with water.

Claims (7)

  1. Lubricant composition for minimum quantity lubrication in metalworking,
    characterized in that
    the composition comprises
    0.05 to 5 wt.% of emulsifier, relative to the total weight of the composition, and
    a proportion of an aliphatic C16-24 alcohol supplementing the composition to 100%, wherein the emulsifier is a glycolic acid alkoxylate alkyl ether, or a mixtures thereof with a fatty alcohol polyalkylene glycol ether, wherein
    the glycolic acid alkoxylate alkyl ether has the formula (II)

            R2-O-[(CH2CH2O)x-(CH2CH(CH3)O)y]-CH2-COOH     (II)

    wherein R2 is an aliphatic, branched or linear C6-20 alkyl or alkylene residue, wherein x = 0 to 10, y = 0 to 10, and x + y = 1 to 10.
  2. Lubricant composition according to claim 1,
    characterized in that
    the fatty alcohol polyalkylene glycol ether has the formula (I)

            R*-[(CH2CH2O)x-(CH2CH(CH3)O)y]-R1     (I)

    wherein R1 is an aliphatic, branched or linear C16-18 alkyl or alkylene residue and R* is a hydroxyl residue, wherein x = 0 to 10, y = 0 to 10, and x + y = 1 to 10.
  3. Lubricant composition according to claim 1 or 2,
    characterized in that
    the aliphatic C16-24 alcohol is a branched alcohol, preferably a Guerbet alcohol, particularly preferred a C20 alcohol.
  4. Lubricant composition according to at least one of the claims 1 to 3,
    characterized in that
    the composition contains additionally
    0.05 to 5 wt.%, relative to the total weight of the composition, fatty acid alkanolamide or alkoxylated fatty acid alkanolamide of the formula (III)

            R3-(CO)-NR'-(CH2)2-O-[(CH2CH2O)x-(CH2CH(CH3)O)y]-R"     (III)

    wherein
    R3 is an aliphatic, linear or branched C5-23 alkyl or alkylene residue, R', R" independent of each other is hydrogen or an aliphatic, linear or branched, substituted or unsubstituted alkyl or alkenyl residue, and
    wherein x = 0 to 10, y = 0 to 10, and x + y = 0 to 10.
  5. Lubricant composition according to at least one of the claims 1 to 4,
    characterized in that
    the composition comprises additionally at least one performance additive of the group that encompasses
    a) sulfurized compounds comprising sulfurized olefins, sulfurized esters, sulfurized triglycerides, and sulfurized natural ester oils,
    b) C12-24 fatty acids,
    c) ethoxylated natural oil,
    d) KOH-saponified rapeseed oil,
    e) ethoxylated acidic phosphoric acid ester.
  6. Lubricant composition according to claim 5,
    characterized in that
    a proportion of each performance additive relative to the total weight of the composition amounts to 15 wt.% relative to the total weight of the composition and
    a proportion of the sum of the performance additives relative to the total weight of the composition amounts to 30 wt.%.
  7. Use of a lubricant composition according to at least one of the claims 1 to 6 for minimum quantity lubrication in metalworking, wherein residues of the lubricant composition remaining on surfaces of workpiece and tool can be washed off with water.
EP15002409.9A 2015-08-13 2015-08-13 Composition for minimal lubrication and its use Active EP3130653B1 (en)

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ES15002409T ES2709344T3 (en) 2015-08-13 2015-08-13 Composition for lubrication in minimum quantity and its use
EP15002409.9A EP3130653B1 (en) 2015-08-13 2015-08-13 Composition for minimal lubrication and its use
HUE15002409A HUE042547T2 (en) 2015-08-13 2015-08-13 Composition for minimal lubrication and its use
PL15002409T PL3130653T3 (en) 2015-08-13 2015-08-13 Composition for minimal lubrication and its use
AU2016316437A AU2016316437B2 (en) 2015-08-13 2016-08-15 Composition for minimum quantity lubrication, and use of same
RU2019100454A RU2019100454A (en) 2015-08-13 2016-08-15 COMPOSITION FOR MINIMUM QUANTITY OF LUBRICANT AND ITS APPLICATION
MYPI2018000202A MY184087A (en) 2015-08-13 2016-08-15 Composition for minimum quantity lubrication, and use of same
SG11201801166TA SG11201801166TA (en) 2015-08-13 2016-08-15 Composition for minimum quantity lubrication, and use of same
PCT/EP2016/001394 WO2017036578A1 (en) 2015-08-13 2016-08-15 Composition for minimum quantity lubrication, and use of same
US15/751,900 US20180237712A1 (en) 2015-08-13 2016-08-15 Composition for Minimum Quantity Lubrication, and Use of Same
KR1020187006975A KR102057954B1 (en) 2015-08-13 2016-08-15 Minimum amount of lubricating compositions and uses thereof
CN201680055295.XA CN108138072B (en) 2015-08-13 2016-08-15 Compositions for minimal lubrication and uses thereof
CA2995517A CA2995517C (en) 2015-08-13 2016-08-15 Composition for minimum quantity lubrication, and use of same
JP2018526999A JP2018523748A (en) 2015-08-13 2016-08-15 Composition for use in lubricating a trace amount of oil and use thereof
MX2018001855A MX2018001855A (en) 2015-08-13 2016-08-15 Composition for minimum quantity lubrication, and use of same.
IL257424A IL257424A (en) 2015-08-13 2018-02-08 Composition for minimum quantity lubrication, and use of same
PH12018500308A PH12018500308A1 (en) 2015-08-13 2018-02-12 Composition for minimum quantity lubrication, and use of same
ZA2018/01649A ZA201801649B (en) 2015-08-13 2018-03-09 Composition for minimum quantity lubrication, and use of same
HK18113750.3A HK1254738A1 (en) 2015-08-13 2018-10-26 Composition for minimum quantity lubrication, and use of same

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