EP1817398B1 - Produit nettoyant pour metaux contenant un polyethylene imine - Google Patents

Produit nettoyant pour metaux contenant un polyethylene imine Download PDF

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Publication number
EP1817398B1
EP1817398B1 EP05792155A EP05792155A EP1817398B1 EP 1817398 B1 EP1817398 B1 EP 1817398B1 EP 05792155 A EP05792155 A EP 05792155A EP 05792155 A EP05792155 A EP 05792155A EP 1817398 B1 EP1817398 B1 EP 1817398B1
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Prior art keywords
multan
weight
cleaning solution
range
alusol
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English (en)
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EP1817398A1 (fr
Inventor
Bernd Stedry
Andreas Heinze
Werner Opitz
Gerhard Rehm
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43—Solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/835—Mixtures of non-ionic with cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2068—Ethers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3723—Polyamines or polyalkyleneimines
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
    • C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/16—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions using inhibitors
    • C23G1/18—Organic inhibitors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
    • C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/16—Metals

Definitions

  • the cleaner Due to its special combination of nonionic surfactants or glycol ethers and polyethyleneimine, the cleaner is low in foaming in the process according to the invention and can therefore be preferred as a spray cleaner in the entire application temperature range of about 15 to about 80 ° C are used. Furthermore, the cleaner in the process according to the invention is demulsifying and therefore easy to work up.
  • Industrial cleaners are mainly used in the automotive industry and their supply industries for cleaning and passivation mainly in spray cleaning equipment. They are suitable for intermediate and final cleaning of non-cutting as well as machined parts in aggregate and assembly plants. Practically all relevant materials, such as iron and steel, aluminum, silumin, copper, brass, zinc and plastics, can be treated and the majority of all contaminations on an organic or inorganic basis, such as coolants, rust inhibiting oils, processing oils, drawing aids, pigments and light metal abrasion, can be removed. Such cleaning agents can also find application in conventional dipping, but their use in the spray process is usually preferred.
  • detergent formulations (obviously for laundering) containing surfactants, builders, enzymes and from 0.001 to 5 weight percent polyethyleneimine are known.
  • Polyethyleneimine is hereinafter abbreviated to PEI.
  • PEI Polyethyleneimine
  • Suitable surfactants are the entire range of surfactants from anionic surfactants, nonionic surfactants, zwitterionic surfactants, ampholytic surfactants, cationic surfactants and mixtures thereof.
  • WO 95/03389 describes a cleaning agent for technical applications, the particular advantage of which is that low-polarity plastic surfaces are well wetted. This is essentially determined by the use of certain Amino acids causes.
  • this agent contains nonionic surfactants, preferably selected from the group of ethoxylated and / or ethoxylated and propoxylated fatty alcohols.
  • the detergent solution have demulsifying properties. This means that oily impurities are very easily removed from the surfaces to be degreased, but that these impurities do not form a stable emulsion in the aqueous cleaner solution, but - at the working temperature or, if appropriate, after temperature adjustment and / or dilution - as oily phase on the aqueous Cleaner floating up. The oil phase can then be easily removed from the detergent solution, so that the service life of the detergent bath can be extended considerably. This property is particularly desired in the context of the present invention.
  • cleaning solutions according to the cited document WO 95/03389 may have this property if they contain cationic surfactants, betaines and / or cationically modified polymers in amounts between 0.01 and 3 wt .-%.
  • protonated PEI or methylated PEI are mentioned. These polymers should have relatively high molecular weights in the range of 50,000 to 50,000,000, preferably between 75,000 and 5,000,000.
  • EP-A-116 151 discloses a process for the regeneration of aqueous degreasing and cleaning solutions, in which one adds the cationic surfactants or cationically modified polymers for the emulsion splitting the used and oil-loaded cleaner solutions. These are intended to cause a breakdown of the emulsions present in the water.
  • the list of choices for cationic demulsifiers listed here includes protonated PEI. These should also have molecular weights, as indicated in the above-cited WO document. According to this teaching, therefore, the PEI is not present from the outset in the cleaning solution and thus during the actual cleaning process, but is added in a separate step to work up the used cleaning solution.
  • WO 98/55578 foam-free detergents for the technical cleaning of hard surfaces are known which contain glycol ethers of the general formula RO- (CH 2 -CH (CH 3 ) -O n -H instead of the usual anionic or nonionic surfactants, wherein R is an alkyl radical having 1 to 4 C atoms or a phenyl radical and n is a number in the range from 1 to 5 mean.
  • the detergent described herein contains cationic surfactants, with the weight ratio of the glycol ethers to the cationic surfactants being between 8: 1 and 100: 1. An addition of PEI is not mentioned here.
  • the present invention has as its object to provide an improved cleaning method for metallic surfaces, which are contaminated, for example, for corrosion protection or from previous processing steps such as a forming or a metal-cutting machining with oils and / or fats.
  • This detergent should be sufficiently low foaming in the application to be used in injection molding, and at the same time have the demulsifying properties described above. In this case, low foaming must be ensured even if adhere to the parts to be cleaned impurities containing foam-forming components. This is the case, for example, when the parts are contaminated with residues of coolant lubricant emulsions containing emulsifiers. Furthermore, the demulsifying properties must be maintained during cleaning despite the entrained emulsifiers.
  • the components of the cleaning agent should contain as few potentially corrosive ions (in particular chloride ions).
  • the cleaning solution can therefore contain either the stated glycol ethers or nonionic surfactants or a mixture thereof.
  • glycol ethers are to be used, the same glycol ethers are suitable for this purpose, which are described in the cited document WO 98/55578 are characterized in detail. Accordingly, glycol ethers are preferred in which n is a number in the range of 1 to 3. Examples of these are: tripropylene glycol monoethyl ether, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether and propylene glycol phenyl ether. Tripropylene glycol monomethyl ether and tripropylene glycol n-butyl ether are preferred.
  • nonionic surfactants are used as component (b), preference is given to using ethoxylates, propoxylates and / or ethoxylates / propoxylates of fatty alcohols.
  • Fatty alcohols are alkyl alcohols having 6 to 22, in particular having 8 to 18 carbon atoms in the alkyl radical.
  • the alkyl radicals are preferably linear, but may also be branched. They can be saturated or mono- or polyunsaturated. It is possible to use fatty alcohol alkoxylates with only one alkyl radical or those having different alkyl radicals, such as are derived from the fatty acids in naturally occurring vegetable or animal fats and oils.
  • the degree of alkoxylation is generally in the range from about 1.5 to about 20.
  • propoxylates of fatty alcohols in which at least 50% of the alkyl radicals is a mono- or poly-unsaturated alkyl radical having 18 carbon atoms.
  • at least 50% of the alkyl radicals are oleyl radicals.
  • Particular preference is given to propoxylates of fatty alcohols in which at least 80% of the alkyl radicals are oleyl radicals.
  • the degree of propoxylation may be between about 1.5 and about 6, preferably between 1.5 and 3.
  • polyethylenimine The component c), polyethylenimine, is commercially available from different manufacturers under different brand names. An overview of brand names and sources of supply as well as a more detailed description of polyethyleneimine can be found in the cited document US 5,904,735 , Column 16, line 49 to column 18, line 19 are taken. This is explicitly referred to here. Accordingly, polyethyleneimines of very different molecular weights are known, which may be between about 100 and about 5,000,000. The molecular weights can be determined by gel permeation chromatography. As stated in the above passage, polyethylenimine may be linear or branched.
  • cationic surfactants d may improve the demulsifying effect of PEI.
  • cationic surfactant in a much smaller amount than the present amount of PEI
  • Suitable cationic surfactants are, for example, quaternary organic ammonium compounds which have at least one alkyl radical having at least 10 carbon atoms.
  • Suitable counterions are, for example, chloride ions or preferably carboxylate ions, for example propionations.
  • the positive charge on the nitrogen atom can be brought about not only by a quaternization with 4 alkyl radicals, but also by protonation of a tertiary amine.
  • cationic surfactant for example, lauryldimethylbenzylammonium chloride or N, N-didecyl-N-methyl-poly (oxyethyl) ammonium propionate is suitable.
  • PEI having a very low or very high molecular weight has a demulsifying effect compared with a lower number of introduced lubricating lubricants than PEI having a molecular weight in the range of between about 1200 and less than 50 000.
  • the polyethyleneimine c) has an average molecular weight which is greater than 2000 and which is less than 35,000. In particular, the molecular weight may be in the range of 5,000 to 25,000.
  • the PEI is not protonated, quaternized or alkoxylated at all in the form in which it is mixed with the other active ingredients of the detergent concentrate. For an alkoxylation, a deteriorated demulsifying effect would be expected. Protonation or quaternization, d. H. a conversion to a cationic state is not required for the demulsifying effect.
  • By dispensing with protonation or quaternization it is avoided that the corresponding anions then also enter the cleaning agent concentrate and thus the cleaning solution. As a result, an unnecessary salt contamination of the cleaning solution is avoided on the one hand. On the other hand, it reduces the corrosivity of the cleaning solution, which can be caused by the counterions of the cationically modified PEI.
  • the cleaning solution additionally contains corrosion inhibitors.
  • corrosion inhibitors for example, alkanolamines can be used. Monoethanolamine, monoisopropanolamine, triethanolamine, triisopropanolamine or mixtures thereof are preferably used here. Dialkanolamines would also be useful because of their excellent corrosion protection. For toxicological reasons (risk of nitrosamine formation), however, the use of dialkanolamines is nowadays avoided.
  • the corrosion inhibitors may be selected from branched or unbranched, saturated or unsaturated aliphatic carboxylic acids having 6 to 10 carbon atoms and / or from aromatic carboxylic acids having 7 to 10 carbon atoms.
  • the carboxylic acids are largely present as anions.
  • counter ions with which the acids can be neutralized, it is possible, for example, to use alkali metal ions, in particular sodium or potassium ions, but preferably the cations of the alkanolamines listed above.
  • carboxylic acids examples include caproic acid, caprylic acid, ethylhexanoic acid, heptanoic acid, isononanoic acid and benzoic acid or derivatives thereof, in particular 3-nitrobenzoic acid or 4-hydroxybenzoic acid.
  • the cleaning solution may contain builders such as, for example, alkali metal orthophosphates, polyphosphates, silicates, borates, carbonates, polyacrylates and gluconates. Some of these builder substances also have complexing properties and thus have a water-softening effect. Instead of or in addition to this, stronger complexing agents such as, for example, 1-hydroxyethane-1,1-diphosphonic acid or 2-phosphonobutane-1,2,4-tricarboxylic acid can be used. Ethylenediaminetetraacetates and nitrilotriacetates may also be used but may lead to wastewater treatment problems. In order to protect the cleaning solutions against bacterial contamination, biocides may be added if desired.
  • the cleaning solution In principle, it would be possible to prepare the cleaning solution by dissolving the individual active components in water in the required concentration range. In the industrial sector concerned, however, it is customary for the manufacturer to supply concentrates which contain all the active ingredients in the required quantity ratio and from which the user can prepare the ready-to-use cleaning solution by simple dilution with water.
  • the concentrates are usually adjusted so that they are used as about 0.5 to about 5 wt .-% aqueous solution used, ie that they are diluted for use with water in the ratio of about 1: 200 to about 1: 20 (Df one dilutes 0.5 to 5 parts by weight of concentrate with 99.5 to 95 parts by weight of water).
  • cationic surfactants are present, they are preferably present in the concentration range from 0.00005 to 0.05% by weight, preferably in the range from 0.0002 to 0.025% by weight.
  • Optional corrosion inhibitors preferably have concentrations in the range of 0.025 to 2% by weight.
  • the surfaces are brought into contact with the aqueous cleaning solution by immersion or preferably by spraying.
  • the aqueous cleaning solution preferably has a temperature in the range of about 15 to about 80 ° C and in particular in the range of about 40 to about 70 ° C.
  • the process according to the invention is used for the degreasing of metal parts in spray systems, for which purpose a temperature in the range from about 15 to about 80 ° C. and in particular in the range from about 40 to about 70 ° C. is set.
  • oil or grease floats on the cleaning solution, especially when either the cleaning process is interrupted or when a calming zone with low turbulence is provided, in which oil or grease can separate from the aqueous cleaning solution.
  • the floating oil or grease is removed continuously or discontinuously so that the cleaning solution so treated can continue to be used for cleaning.
  • VE water means: demineralized water
  • EO ethylene oxide
  • PO propylene oxide
  • Part 1 Cleaning tests.
  • Detergent solution 1% by weight of the PEI types given in Table 1 were added to Cleaner 1 (concentrate) and the cleaner was added at a concentration of 20 g / l in water in order to obtain the detergent solution.
  • the demulsifying effect was checked by adding different commercial oil-containing cooling lubricant emulsions from different manufacturers to the cleaner solutions.
  • the coolants and the results are listed in Table 2.
  • PEI in cleaner cleavage 1 Alusol BA 370 without (comparison) 0 No 1 Alusol BA 370 800 2 Yes 1 Alusol BA 370 5000 1 Yes 1 Alusol BA 370 5000 2 Yes 1 Alusol BA 370 1300 2 Yes 1 Alusol BA 370 2000 2 Yes 1 Alusol BA 370 25000 1 Yes 1 Alusol BA 370 25000 2 Yes 1 Alusol BA 370 750000 1 Yes 1 Alusol BA 370 750000 2 Yes
  • the above example shows an easily fissile coolant, whose emulsion in the cleaner solution of all PEI types is split at a maximum of 2% in the cleaner concentrate.
  • both a nonionic surfactant and a cationic surfactant are added as indicated in the table, and a foaming test is carried out in a spray-washer.
  • a 2gew-% cleaning solution in tap water about 16 ° dH
  • 4 l of this solution were sprayed at 50 ° C. in a single-jet spray system with a starting injection pressure of 10 bar for a period of 10 minutes.
  • the pressure as well as the foam height was measured, which is defined as the height of the foam above the liquid level in the initial state.
  • Cationic surfactants cause the spray pressure to drop during operation, and the foam development is significantly lower. This is all the more remarkable, since cationic surfactants foaming strongly on their own.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Claims (8)

  1. Procédé pour le nettoyage de surfaces métalliques souillées par des huiles et/ou des graisses, caractérisé en ce qu'on met les surfaces en contact avec une solution aqueuse de nettoyage qui contient
    b) des glycoléthers de formule générale

            R-O-(CH2-CH(CH3)-O)n-H,

    R signifiant un radical alkyle comprenant 1 à 4 atomes de carbone ou un radical phényle et n signifiant un nombre dans la plage de 1 à 5 et/ou des agents tensioactifs non ioniques et
    c) une polyéthylène-imine,
    la polyéthylène-imine n'étant ni protonisée, ni quaternisée, ni alcoxylée et présentant une masse molaire moyenne qui est supérieure à 1200 et inférieure à 50 000.
  2. Procédé selon la revendication 1, caractérisé en ce que la solution aqueuse de nettoyage contient en outre des agents tensioactifs cationiques et/ou des inhibiteurs de corrosion.
  3. Procédé selon l'une des revendications ou les deux revendications 1 et 2, caractérisé en ce que la polyéthylène-imine c) présente une masse molaire moyenne qui est supérieure à 2000, et inférieure à 35 000.
  4. Procédé selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que la solution aqueuse de nettoyage contient des agents tensioactifs non ioniques b) en une concentration dans la plage de 0,002 à 0,25% en poids.
  5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que la solution aqueuse de nettoyage contient des glycoléthers b) en une concentration dans la plage de 0,002 à 4% en poids.
  6. Procédé selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que la solution aqueuse de nettoyage contient la polyéthylène-imine c) en une concentration dans la plage de 0,0005 à 0,25% en poids, de préférence dans la plage de 0,001 à 0,1% en poids.
  7. Procédé selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que la solution aqueuse de nettoyage contient des agents tensioactifs cationiques d) en une concentration dans la plage de 0,00005 à 0,05% en poids, de préférence dans la plage de 0,0002 à 0,025% en poids.
  8. Procédé selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce qu'on élimine en continu ou de manière discontinue l'huile ou la graisse flottant sur la solution de nettoyage.
EP05792155A 2004-11-29 2005-09-10 Produit nettoyant pour metaux contenant un polyethylene imine Active EP1817398B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004057623A DE102004057623A1 (de) 2004-11-29 2004-11-29 Metallreiniger mit Polyethylenimin
PCT/EP2005/009768 WO2006058570A1 (fr) 2004-11-29 2005-09-10 Produit nettoyant pour metaux contenant un polyethylene imine

Publications (2)

Publication Number Publication Date
EP1817398A1 EP1817398A1 (fr) 2007-08-15
EP1817398B1 true EP1817398B1 (fr) 2012-02-01

Family

ID=35462267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05792155A Active EP1817398B1 (fr) 2004-11-29 2005-09-10 Produit nettoyant pour metaux contenant un polyethylene imine

Country Status (5)

Country Link
US (1) US20070270323A1 (fr)
EP (1) EP1817398B1 (fr)
AT (1) ATE543895T1 (fr)
DE (1) DE102004057623A1 (fr)
WO (1) WO2006058570A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006018216B4 (de) 2006-04-18 2008-09-25 Chemetall Gmbh Verfahren zum demulgierenden Reinigen von metallischen Oberflächen
US20080274929A1 (en) * 2007-05-01 2008-11-06 Whitekettle Wilson K Method for removing microbes from surfaces
DE102007000501A1 (de) * 2007-10-15 2009-04-16 Chemetall Gmbh Reinigerzusammensetzung für metallische Oberflächen
WO2014086577A1 (fr) * 2012-12-04 2014-06-12 Unilever N.V. Composition de nettoyage de surface dure
JP7078351B2 (ja) * 2014-06-17 2022-05-31 ヒェメタル ゲゼルシャフト ミット ベシュレンクテル ハフツング インク及びマーカーを穏やかに除去するための洗浄剤
CN104178772B (zh) * 2014-08-11 2016-05-11 浙江久晟油茶科技股份有限公司 一种茶皂素水基金属清洗剂及使用方法
RU2707008C2 (ru) 2015-02-25 2019-11-21 Басф Се Способ очистки загрязненных металлических поверхностей и вещества, применимые для такого способа
AU2016245834B2 (en) * 2015-04-10 2021-03-18 Solenis Technologies Cayman, L.P. Process for inhibiting the corrosion of metal surfaces
CN109267074B (zh) * 2018-11-29 2020-12-22 苏州市神顺新晨科技有限公司 一种金属零件清洗剂
CN111321419A (zh) * 2020-04-13 2020-06-23 宿迁盾嘉生物科技有限公司 一种用于马口铁工艺中的脱脂剂及使用方法
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DE102004057623A1 (de) 2006-06-01
US20070270323A1 (en) 2007-11-22
ATE543895T1 (de) 2012-02-15
EP1817398A1 (fr) 2007-08-15

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