EP0511253B1 - Produits de nettoyage desemulsifiants et application - Google Patents

Produits de nettoyage desemulsifiants et application Download PDF

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Publication number
EP0511253B1
EP0511253B1 EP91902214A EP91902214A EP0511253B1 EP 0511253 B1 EP0511253 B1 EP 0511253B1 EP 91902214 A EP91902214 A EP 91902214A EP 91902214 A EP91902214 A EP 91902214A EP 0511253 B1 EP0511253 B1 EP 0511253B1
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EP
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Prior art keywords
weight
cleaning
water
contain
general formula
Prior art date
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Expired - Lifetime
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EP91902214A
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German (de)
English (en)
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EP0511253A1 (fr
Inventor
Jürgen Dr. Geke
Friedbert Zetzsche
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Publication of EP0511253A1 publication Critical patent/EP0511253A1/fr
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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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • 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
    • C11D1/83—Mixtures of non-ionic with anionic 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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • 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
    • C11D1/02—Anionic 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic 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
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to demulsifying, powdered or liquid cleaning agents with which painted and unpainted surfaces of vehicles, engines, floors in workshops or other work surfaces can be cleaned and degreased, the contaminants removed thereby being demulsified.
  • the invention further relates to the use of these cleaning agents.
  • US-A-3,663,445 describes liquid storage-stable concentrates and cleaning and degreasing preparations, in particular for metallic surfaces, which are obtained from said concentrates by dilution with water and which consist of 6 to 45% by weight of a nonionic surfactant, for example a fatty alcohol ethoxylate, 4 up to 33% by weight of an ethanolamine salt of a fatty acid, 2 to 90% by weight of an ethanolamine and 0 to 50% by weight of water.
  • a nonionic surfactant for example a fatty alcohol ethoxylate, 4 up to 33% by weight of an ethanolamine salt of a fatty acid, 2 to 90% by weight of an ethanolamine and 0 to 50% by weight of water.
  • AT-A-308,936 relates to liquid storage-stable concentrates and from these cleaning and degreasing agents which can be prepared by dilution with water and which comprise at least 5% by weight of a nonionic surfactant, for example a fatty alcohol ethoxylate, at least 3% by weight of a saturated or unsaturated fatty acid with 8 to 22 carbon atoms in the molecule, at least 4.5 wt .-% of one or more alkanolamines and conventional additives such as complexing agents, and water.
  • a nonionic surfactant for example a fatty alcohol ethoxylate
  • a saturated or unsaturated fatty acid with 8 to 22 carbon atoms in the molecule at least 4.5 wt .-% of one or more alkanolamines and conventional additives such as complexing agents, and water.
  • GB-A-1,321,513 relates to a cleaning process for metallic surfaces with two cleaning baths to be used in succession, the pre-cleaning bath and the degreasing bath.
  • the pre-cleaning bath consists of at least 5% by weight of a nonionic surfactant containing 3 to 5 moles of ethylene oxide, at least 3% by weight of a fatty acid and / or an alkyl polyethylene oxide carboxylic acid, at least 1.5% by weight of an alkanolamine and / or oxazine and as Rest of water.
  • the degreasing bath consists of an inorganic or organic alkaline substance, for example potassium hydroxide, potassium carbonate, potassium orthophosphate, potassium pyrophosphate, potassium borate, alkanolamine, preferably mono-, di- or triethanolamine, morpholine, and a complexing agent, a low-foaming surfactant, for example a condensation product of fatty acids with 3 to 5 moles of ethylene oxide and other additives and the rest water.
  • an inorganic or organic alkaline substance for example potassium hydroxide, potassium carbonate, potassium orthophosphate, potassium pyrophosphate, potassium borate, alkanolamine, preferably mono-, di- or triethanolamine, morpholine, and a complexing agent, a low-foaming surfactant, for example a condensation product of fatty acids with 3 to 5 moles of ethylene oxide and other additives and the rest water.
  • AT-A-299,421 relates to an aqueous liquid composition for mechanical dishwashing, which contains 2 to 6% by weight of a nonionic surfactant, 15 to 25% by weight of an organic sequestering agent, 7 to 15% by weight of a hydrotropic substance, Contains 3 to 15 wt .-% of an ethanolamine and 0.1 to 0.6% of a corrosion inhibitor.
  • DE-A-25 05 252 relates to a process for the industrial cleaning and degreasing of objects, in particular metals, by treating the objects with a solvent-free, aqueous solution which contains an organic sequestering agent and a hydrotropic substance, which is characterized in that an aqueous solution is used which contains 0.1 to 20% by weight of an organic, hydrotropic electrolyte in the form of benzenesulfonates, lower alkylbenzenesulfonates, di (lower alkyl) benzenesulfonates or mixtures thereof and from 0.1 to 25% by weight.
  • sequestering agent in the form of aminopolycarboxylic acids or aminopolyphosphonic acids or their salts or mixtures thereof, the weight ratio of the electrolyte to the sequestering agent being from 2: 1 to 1: 3 and the pH of the solution being from 9 to 13.
  • US-A-4,321,166 relates to liquid cleaners which contain 20 to 70% by weight of a surfactant, for example a fatty alcohol ethoxylate, 0.85 to 2% by weight of a corrosion inhibitor system which essentially consists of a mixture of an oligomeric olefinic fatty acid and an aromatic Triazole consists, as well as 1 to 75 wt .-% water.
  • a surfactant for example a fatty alcohol ethoxylate
  • a corrosion inhibitor system which essentially consists of a mixture of an oligomeric olefinic fatty acid and an aromatic Triazole consists, as well as 1 to 75 wt .-% water.
  • DE-A-35 30 623 relates to demulsifying cleaning agents with surface moisturizing effect, containing builders / complexing agents in an amount of 0.5 to 10% by weight, one or more alkanolamine (s) in an amount of 20 to 60% by weight. , one or more nonionic surfactant (s) in an amount of 1 to 15% by weight and the balance water.
  • These cleaning agents and corresponding cleaning agent preparations are suitable for cleaning and degreasing painted and unpainted vehicle surfaces, engines, floors and walls of workshops etc. already at room temperature with demulsification of the removed oily or greasy impurities.
  • EP-A-0 335 471 describes liquid detergent formulations which consist of a liquid base component and a solid abrasive component.
  • the liquid base component contains an anionic surfactant, a nonionic surfactant, a non-polar, water-insoluble solvent, builder substances, water and optionally perfumes and dyes.
  • Various inorganic or organic substances of certain hardness and particle size can be considered as the abrasive component.
  • EP-A-0 292 910 also relates to liquid, aqueous cleaning formulations for hard surfaces which contain a solid abrasive component.
  • Such cleaners consist of a fatty acid or a fatty acid soap, a further anionic surfactant, a nonionic surfactant, builder substances, water and organic polymers of certain hardness and particle size as an abrasive component.
  • These cleaners preferably contain a hydrocarbon solvent.
  • FR-A-1 537 265 describes so-called cold cleaners for cleaning solid surfaces.
  • These cold cleaners consist of solutions of nonionic surfactants and aliphatic straight-chain or branched or cycloaliphatic C4 ⁇ 14 ⁇ monocarboxylic acids or their alkali or amine salts in water-insoluble solvents.
  • the preferred monocarboxylic acid is ⁇ -ethylhexanoic acid;
  • Suitable organic solvents are hydrocarbons or chlorinated hydrocarbons.
  • the object of the present invention to provide such demulsifying cleaning agents for cleaning oil-contaminated hard surfaces which have a better demulsifying activity and furthermore a better cleaning action than the known cleaning agents of the prior art.
  • the demulsifying effect of the cleaning agents should result in improved oil separation and thus lower residual oil values in the wastewater.
  • the demulsifying cleaning agents according to the invention have an excellent cleaning potential. Due to the good demulsifying effectiveness of these cleaning agents, the removed oil-containing contaminants separate themselves when the aqueous application solution is diluted. Fats and oils washed off the substrate surfaces in this way can be easily and easily removed from aqueous media, for example using simple oil separators. In this way, wastewater suitable for receiving water always results.
  • R 1 represents a linear alkyl radical with 8 carbon atoms.
  • the following radical can therefore be used as substituent R1: n-octyl.
  • the number of ethoxy radicals in the molecule - n - is in the range from 4 to 6.
  • corresponding addition products of ethylene oxide with fatty alcohols are used in particular as component (a).
  • Such fatty alcohol ethoxylates can be used either individually or in combination.
  • component (a) is in particular the adduct of 4 moles of ethylene oxide with n-octanol.
  • R2 is a branched alkyl radical having 8 to 9 carbon atoms.
  • These monocarboxylic acids of component (b) can also be used both alone and in combination.
  • Suitable water-soluble salts of such monocarboxylic acids are, in particular, the alkali metal salts, preferably their sodium salts.
  • 2-ethylhexanoic acid is preferably used as component (b).
  • At least one anionic surfactant which is selected from the group of the alkyl sulfates of the general formula (III), the alkyl polyglycol ether sulfates of the general formula (IV) and the alkylarylsulfonates of the general formula (V), is used as component (c) in the demulsifying cleaning agents according to the invention.
  • the substituents R3 and R4 independently of one another each represent linear or branched alkyl radicals having 10 to 18 carbon atoms.
  • radicals R3 and R4 are suitable as substituents R3 and R4: n-decyl, n-undecyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl and n-octadecyl and also branched chain isomers of the alkyl radicals mentioned.
  • the number of ethylene oxide units - m - in the alkylpolyglycol ether sulfates of the general formula (IV) is in the range from 1 to 6.
  • the radical R5 in the alkylarylsulfonates of the general formula (V) represents alkylbenzene residues with 7 to 9 carbon atoms, selected from the Group toluene, xylene, mesithylene and cumene.
  • R5 in the alkylarylsulfonates of the general formula (V) represents alkylbenzene residues with 7 to 9 carbon atoms, selected from the Group toluene, xylene, mesithylene and cumene.
  • Me each represents an alkali metal atom, preferably sodium.
  • the content of components (a), (b) and (c) defined above in the cleaning agents according to the invention is 2.5 to 12.5% by weight in total. It is also important in the context of the invention that the weight ratio of component (a) to component (b) is in the range from 3: 1 to 1: 6 and also the weight ratio of the sum of components (a) and (b) to component (c) in the range from 3: 1 to 1: 3.
  • component C is a C12 C14 fatty alcohol sulfate sodium salt and / or a C12 ⁇ 14 fatty alcohol ether sulfate sodium salt with 3 to 5 moles of ethylene oxide and / or the cumene sulfonate sodium salt.
  • the demulsifying cleaning agents contain at least one organic or inorganic builder.
  • organic or inorganic builder examples include oligo- or polycarboxylic acids and their water-soluble salts, for example ethylenediaminetetraacetic acid, nitrilotriacetic acid, diethylenetriaminepentaacetic acid or n- (2-hydroxyethyl) ethylenediaminetriacetic acid, preferably in the form of their alkali metal salts, especially the sodium salts.
  • Further suitable builder substances within the meaning of the invention are alkali metal phosphates, polyphosphates, silicates, borates, carbonates and / or hydroxides, preferably also in the form of the corresponding sodium salts.
  • the sodium salts of ethylenediaminetetraacetic acid and / or nitrilotriacetic acid are preferably used as builder substances.
  • the demulsifying cleaning agents according to the invention also contain powdery or liquid auxiliaries and / or adjusting agents which add up to 100% by weight of the components (a), (b), (c) and (d) contained in the cleaning agents. They are used in particular for the packaging of either powdered or liquid formulations of the cleaning agents according to the invention. If liquid formulations are desired, water is used in particular as an adjusting agent. Suitable powdered adjusting agents which then lead to powdered formulations are alkali metal sulfates or carbonates, especially in the form of sodium salts, or urea. Furthermore, the cleaning agents according to the invention can also contain small amounts of oleic acid or its sodium salt and of diethanolamine and / or triethanolamine as auxiliaries.
  • the cleaning agents according to the invention are produced by mixing the abovementioned components in the respective amounts by methods known per se.
  • the cleaning agents are generally stored or shipped in the form of an aqueous or powdery concentrate containing the combination of the specified components, to which the stated amounts (in% by weight) also relate.
  • the demulsifying cleaning agents according to the invention depending on the type of application and degree of contamination of the surfaces to be cleaned - are used in any dilution with water.
  • the cleaning agents are used in water-diluted application solutions for cleaning and degreasing hard surfaces, the concentration of components (a), (b) and (c) in these application solutions being 0.01 in total up to 3% by weight, in particular 0.025 to 1% by weight.
  • the pH of these aqueous application solutions is in the range from 7.5 to 13, in particular in the range from 9.5 to 11.5.
  • a liquid detergent is made by mixing 1.8% by weight of a condensation product of n-octanol with 4 mol of EO, 1.8% by weight of 2-ethylhexanoic acid, 0.3% by weight of C12-C14 fatty alcohol ether sulfate with 3 mol of EO sodium salt, 2.6% by weight sodium cumene sulfonate, 28.0% by weight of sodium ethylenediaminetetraacetic acid, 0.8% by weight of triethanolamine, 0.4% by weight oleic acid 64.3 wt% water manufactured.
  • a powder detergent is made by mixing 3.0% by weight of a condensation product of n-octanol with 4 mol of EO 2.0% by weight of 2-ethylhexanoic acid, 1.0% by weight of C12-C14 fatty alcohol sulfate sodium salt, 3.0% by weight sodium cumene sulfonate, 36.8% by weight of nitrilotriacetic acid sodium salt 1.0% by weight of oleic acid, 38.6% by weight sodium carbonate 14.6% by weight urea manufactured.
  • a comparative cleaner was made by mixing 5.0% by weight of a condensation product of n-octanol with 4 mol of EO, 1.6% by weight sodium cumene sulfonate, 2.4% by weight of ethylenediaminetetraacetic acid sodium salt 42.0% by weight of a mixture of diethanolamine and triethanolamine in a ratio of 2: 1, and 49.0 wt% water manufactured.
  • the separation time or rest time for phase separation was only 5 minutes in Examples 1 and 2, compared to a time of 30 minutes that was required for the comparative cleaner.
  • cleaning agent solutions as test solutions were prepared from the cleaning agents according to Examples 1, 2 and the comparative example by dilution with water (16 ° d).
  • the cleaning action and the relative cleaning action RW rel were determined in such a way that the number of wipings with the comparative cleaner was divided by the number of wipings with the cleaner according to the invention to be tested.
  • the quotient gave the relative cleaning effect RW rel , based on the comparative cleaner.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (7)

  1. Détergents désémulsifiants, pulvérulents ou liquides, à base d'agents tensioactifs non ioniques, d'agents tensioactifs anioniques et de substances faisant office d'adjuvants, et exempts de solvants organiques insolubles dans l'eau, caractérisés en ce qu'ils contiennent une combinaison des constituants ci-après :
    a) au moins un éthoxylate d'alkyle répondant à la formule générale (I) :



            R¹-O-(CH₂CH₂O)n-H   (I)



    dans laquelle R¹ représente un radical alkyle linéaire contenant 8 atomes de carbone et n représente un nombre dans le domaine de 4 à 6,
    b) au moins un acide monocarboxylique ou ses sels hydrosolubles, répondant à la formule générale (II) :



            R²-COOH   (II)



    dans laquelle R² représente un radical alkyle ramifié contenant 8 ou 9 atomes de carbone,
    c) au moins un agent tensioactif anionique choisi parmi le groupe
    c1) des alkylsulfates répondant à la formule générale (III) :



            R³-O-SO₃Me   (III)



    c2) des alkyl-polyglycol-éther-sulfates répondant à la formule générale (IV) :



            R⁴-O-(CH₂CH₂O)m-SO₃Me   (IV)



    c3) des alkylarylsulfonates répondant à la formule générale (V) :



            R⁵-SO₃-Me   (V)



    où R³ et R⁴ représentent, indépendamment l'un de l'autre, respectivement des radicaux alkyle linéaires ou ramifiés contenant de 10 à 18 atomes de carbone, m représente un nombre dans le domaine de 1 à 6, R⁵ représente des radicaux d'alkylbenzène contenant de 7 à 9 atomes de carbone et Me représente, respectivement, un atome de métal alcalin,
    dans lesquels la teneur des détergents en composants a, b et c que l'on vient de citer s'élève, au total, de 2,5 à 12,5% en poids, et le rapport pondéral de a à b se situe dans le domaine de 3:1 à 1:6, et le rapport pondéral de (a+b):c se situe dans le domaine de 3:1 à 1:3,
    d) de 5 à 97,5% en poids d'au moins une substance organique ou inorganique faisant office d'adjuvant, choisie parmi le groupe des acides oligo- et polycarboxyliques ou de leurs sels hydrosolubles, ainsi que des phosphates, des silicates, des borates, des carbonates et des hydroxydes de métaux alcalins,
    e) jusqu'à 100% en poids d'adjuvants ou de régulateurs pulvérulents ou liquides.
  2. Détergents selon la revendication 1, caractérisés en ce qu'ils contiennent, comme composant (a), un produit d'addition de 4 moles d'oxyde d'éthylène à du n-octanol.
  3. Détergents selon la revendication 1, caractérisés en ce qu'ils contiennent, comme composant (b), l'acide 2-éthylhexanoïque.
  4. Détergents selon la revendication 1, caractérisés en ce qu'ils contiennent, comme composant (c), un sel de sodium de sulfate d'alcool gras en C₁₂-C₁₄ et/ou un sel de sodium d'éthersulfate d'alcool gras en C₁₂-C₁₄ avec de 3 à 5 moles d'oxyde d'éthylène et/ou du sel de sodium de sulfonate de cumène.
  5. Détergents selon l'une quelconque des revendications 1 à 4, caractérisés en ce qu'ils contiennent, comme substance faisant office d'adjuvant, le sel de sodium de l'acide éthylènediaminetétracétique et/ou de l'acide nitrilotriacétique.
  6. Détergents selon l'une quelconque des revendications 1 à 5, caractérisés en ce qu'ils contiennent, comme adjuvants et/ou comme régulateurs, l'acide oléique, le carbonate de sodium, de l'urée et/ou de l'eau.
  7. Utilisation des détergents selon l'une quelconque des revendications 1 à 6, pour nettoyer et dégraisser des surfaces dures, caractérisée en ce que la concentration des composants (a), (b) et (c) dans les solutions d'utilisation diluées avec de l'eau s'élève, au total, de 0,01 à 3% en poids, en particulier de 0,025 à 1% en poids.
EP91902214A 1990-01-20 1991-01-12 Produits de nettoyage desemulsifiants et application Expired - Lifetime EP0511253B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4001595 1990-01-20
DE4001595A DE4001595A1 (de) 1990-01-20 1990-01-20 Demulgierende, pulverfoermige oder fluessige reinigungsmittel und deren verwendung
PCT/EP1991/000039 WO1991010718A1 (fr) 1990-01-20 1991-01-12 Produits de nettoyage desemulsifiants et application

Publications (2)

Publication Number Publication Date
EP0511253A1 EP0511253A1 (fr) 1992-11-04
EP0511253B1 true EP0511253B1 (fr) 1995-02-22

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EP91902214A Expired - Lifetime EP0511253B1 (fr) 1990-01-20 1991-01-12 Produits de nettoyage desemulsifiants et application

Country Status (9)

Country Link
US (1) US5286402A (fr)
EP (1) EP0511253B1 (fr)
JP (1) JPH05504155A (fr)
AT (1) ATE118809T1 (fr)
DE (2) DE4001595A1 (fr)
DK (1) DK0511253T3 (fr)
ES (1) ES2068568T3 (fr)
NO (1) NO180202C (fr)
WO (1) WO1991010718A1 (fr)

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US8309050B2 (en) 2005-05-26 2012-11-13 Smith International, Inc. Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance
US8852304B2 (en) 2004-05-06 2014-10-07 Smith International, Inc. Thermally stable diamond bonded materials and compacts
US8881851B2 (en) 2003-12-05 2014-11-11 Smith International, Inc. Thermally-stable polycrystalline diamond materials and compacts

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4208066A1 (de) * 1992-02-13 1992-09-24 Martin Wilke Verfahren und vorrichtung zur umweltfreundlichen reinigung von melkanlagen
DE4227863A1 (de) * 1992-08-22 1994-02-24 Henkel Kgaa Gießfähige flüssige wäßrige Reinigungsmittelkonzentrate
US5749977A (en) * 1992-10-28 1998-05-12 Elf Atochem S.A. Process and composition for degreasing the surface of an object
FR2697265B1 (fr) * 1992-10-28 1994-12-09 Atochem Elf Sa Utilisation d'un ester étheroxyde d'alcoylèneglycol pour le dégraissage de la surface d'un objet et procédé et composition à cet usage.
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US8852304B2 (en) 2004-05-06 2014-10-07 Smith International, Inc. Thermally stable diamond bonded materials and compacts
US8309050B2 (en) 2005-05-26 2012-11-13 Smith International, Inc. Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance

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WO1991010718A1 (fr) 1991-07-25
NO180202B (no) 1996-11-25
ES2068568T3 (es) 1995-04-16
US5286402A (en) 1994-02-15
NO922692D0 (no) 1992-07-08
NO180202C (no) 1997-03-05
ATE118809T1 (de) 1995-03-15
DE4001595A1 (de) 1991-07-25
JPH05504155A (ja) 1993-07-01
EP0511253A1 (fr) 1992-11-04
NO922692L (no) 1992-07-08
DK0511253T3 (da) 1995-07-10
DE59104713D1 (de) 1995-03-30

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