EP0826768A1 - Granular components containing benzotriazole for automatic dishwashing compositions, and method of making them - Google Patents

Granular components containing benzotriazole for automatic dishwashing compositions, and method of making them Download PDF

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Publication number
EP0826768A1
EP0826768A1 EP97113068A EP97113068A EP0826768A1 EP 0826768 A1 EP0826768 A1 EP 0826768A1 EP 97113068 A EP97113068 A EP 97113068A EP 97113068 A EP97113068 A EP 97113068A EP 0826768 A1 EP0826768 A1 EP 0826768A1
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Prior art keywords
group
component
solid
granular
surfactants
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EP97113068A
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German (de)
French (fr)
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EP0826768B1 (en
Inventor
Thomas Dr. Holderbaum
Jürgen Dr. Härer
Hans-Josef Dr. Beaujean
Oliver Kurth
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0082Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
    • C11D11/0088Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads the liquefied ingredients being sprayed or adsorbed onto solid particles
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06Powder; Flakes; Free-flowing mixtures; Sheets
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005Other compounding ingredients characterised by their effect
    • C11D3/0073Anticorrosion compositions
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/18Hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/28Heterocyclic compounds containing nitrogen in the ring

Definitions

  • the application relates to granular components containing benzotriazole for the Use in MGSM and process for its production
  • Granular cleaning agents for MGSM are known because they are easy to dose pourable and pourable, stable in storage and visually appealing to the consumer are.
  • Benzotriazole is a corrosion protection component that in active oxygen Cleaners is widely used today.
  • the chemical stability in these systems is only given to a limited extent, since benzotriazole is easily oxidized is broken down. This is especially the case with longer storage, e.g. yellow colored and unpleasant smelling oxidation products that discolor the Cleaner, the loss of corrosion protection and the lack of Acceptance of the product by the consumer.
  • WO 95/1416 (Procter & Gamble) describes a bleaching composition which is suitable for automatic dishwashing, the one Contains oxygen bleach, paraffin oil and a benzotriazole component, the entire component is intended for use in detergents.
  • the Components can be powder, granules, pastes, liquids, gels, Tablets are present, with granular preparation forms being preferred. Densities of at least 650 g / l or usually at least 700 g / l and preferably between 800 and 1200 g / l and particle sizes which are distributed in such a way that no more than 5% of the particles are larger than 1.4 mm in diameter and not more than 5% of the particles are less than 0.15 mm in diameter prefers.
  • a preferred process for making the connection involves premixing paraffin oil and a dispersant, where this premix is sprayed onto the rest of the composition.
  • the dispersant is advantageously nonionic surfactant.
  • one Method of spraying paraffin oil and dispersant on the Bleach, with the associated reduction in dissolving speed of the bleaching agent in water, the so-called "coating”, is preferred, the coated bleach particles thereafter in a dry mixing process with the rest the composition is mixed.
  • The is also described Compact the bleach before mixing it with the rest of the ingredients the composition mixed dry. There is no instruction how Benzotriazole homogeneously in a free-flowing dishwasher detergent component should be incorporated.
  • the task was to provide a free-flowing, storage-stable, homogeneous granulate to make, which contains benzotriazole and as silver protection for the machine dishwashing is suitable.
  • the one contained in the granulate Benzotriazole should be protected against oxidative attack.
  • the present invention relates to a granular, free-flowing Component containing one at a temperature above 50 ° C meltable solid (I) from the group organic redox-active Substances, preferably from the group of benzotriazoles and one of the Melting temperature fixed inventory component (II) selected from the group of in Dishwasher detergents usual builder components and one or more others Components from the group of hydrocarbons or their mixtures and one or more further constituents from the group comprising the polar contains organic solvents and the surfactants, the ratio between solid (I) and solid (II) between 1 to 100 and 2 to 1, preferred between 1 to 70 and 3 to 2 and particularly preferably between 1 to 50 and 2 to 3 and the component has a particle size between 0.01 and 2 Millimeters, preferably 0.05 and 1.8 millimeters and particularly preferred between 0.1 and 1.6 millimeters.
  • Water-soluble and water-insoluble builders can be used. There are water-soluble builders preferred as they are usually less on dishes and hard surfaces tend to form insoluble residues. Usual builders present may be the low molecular weight polycarboxylic acids and their salts, the homopolymeric and copolymeric polycarboxylic acids and their salts, the Carbonates, phosphates and silicates. Water-insoluble builders include Zeolites, which can also be used, as well as mixtures of the aforementioned builder substances. For the components according to the invention are preferably trisodium citrate and / or soda and / or bicarbonate and / or Alkali tripolyphosphates and / or disilicate and / or metasilicate used.
  • the granular components according to the invention contain between 0.001 % By weight and 50% by weight, preferably between 0.05 and 20% by weight and particularly preferably between 0.5 and 10% by weight of benzotriazole compounds.
  • benzotriazole compounds all chemical Derivatives of the benzotriazole skeleton.
  • Derivatives of benzotriazole, in the sense of present invention, above all, those on the aromatic ring are whole or partially substituted compounds, with suitable substituents can be linear or branched alkyl chains with 1 to 20 carbon atoms. But OH, SH, vinyl or halogen groups are also conceivable.
  • the ratio between Solid (I) and solid (II) between 1 to 100 and 2 to 1, preferably between 1 to 70 and 3 to 2 and particularly preferably between 1 to 50 and 2 to 3.
  • An important parameter for the present means is the particle size of the Component that is between 0.01 and 2 millimeters, preferably 0.05 and 1.8 Millimeters and particularly preferably between 0.1 and 1.6 millimeters should.
  • Another object of the invention is the use of these granular trickle-shaped component as a silver protection agent in automatic dishwashing detergents.
  • Another object of the invention is a method for manufacturing granular free-flowing components, which is characterized in that the solid (I) melting above 50 ° C. in liquid form sprayed onto the solid (II) at elevated temperature.
  • coarse-grained solid (I) preferably coarse-grained sodium citrate and / or coarse-grain soda and / or coarse-grained sodium bicarbonate is combined in one commercial mixer, preferably a ploughshare mixer, if possible low energy input and in a way that reduces the abrasion of the grain minimized, for example without the use of a knife ring, inside short time, preferably between 1 and 5 minutes, particularly preferably 3 Minutes at a spray temperature of above 100 ° C, preferably above 105 ° C particularly preferably between 110 and 120 ° C with the organic Brushed solid (II) in liquid form, and optionally cooled or let cool.
  • the melt of the organic solid (I) can be used in this process will.
  • the Substance (I) in the form of a solution in an organic solvent (III) is preferred in polar organic liquids, particularly preferably in concentrations of more than 30% by weight.
  • This solvent (III) is preferred selected from the group consisting of methanol, ethanol, isopropanol, Ethylene glycol, propylene glycol, acetone, methyl ethyl ketone, polyethylene glycols and polypropylene glycols.
  • the solvent is the group of surfactants, the nonionic surfactants being particularly preferred. Most notably preferred in the sense of the invention are the surfactants from the group of Alkyl polyglycosides, the fatty alcohol ethoxylates or propoxylates and their esters.
  • a final spraying of the after has a particularly positive effect Granular components with hydrocarbons produced by the above method or a mixture of hydrocarbons with a melting point between 30 ° C and 120 ° C, preferably between 30 and 80 ° C, particularly preferably between 45 ° C and 65 ° C at elevated temperature.
  • Prefers are used above all in the sense of the present invention macrocrystalline paraffins with melting points between 40 ° C and 60 ° C, microcrystalline paraffins with melting points between 60 ° C and 75 ° C and Mixtures between macro and micro crystalline paraffins with melting points from e.g. between 45 ° C and 65 ° C. But also other hydrocarbons and Mixtures of hydrocarbons can be used.
  • dishwashing detergent containing granular component, preferably in amounts between 1 and 40% by weight based on the entire mixture, the dishwashing detergent also others Components common in dishwashing detergents, such as builder substances, sheet metal detergents, Surfactants, corrosion protection agents, polymers, other silver protection agents, May contain defoamers, perfumes and fragrances and others.
  • Water-soluble and water-insoluble builders especially for binding calcium and magnesium be used.
  • Water-soluble builders are preferred because they are based on Dishes and hard surfaces tend to be less insoluble To form residues.
  • Usual builders that are within the scope of the invention 10 and 90% by weight, based on the total preparation, can be present, are the low molecular weight polycarboxylic acids and their salts, the homopolymeric and copolymeric polycarboxylic acids and their salts, the Carbonates, phosphates and silicates.
  • Water-insoluble builders include Zeolites, which can also be used, as well as mixtures of the aforementioned builder substances.
  • For the cleaning agents according to the invention are preferred trisodium citrate and / or pentasodium tripolyphosphate and silicate builders from the class of disilicates used.
  • Alkali carriers can be present as further constituents.
  • Alkali carbonates, especially sodium carbonate, sodium hydrogen carbonate or Sodium sesquicarbonate can be used.
  • bleach activators are compounds that contain one or more N or O-acyl groups, like substances from the class of anhydrides, contain Esters, the imides and the acylated imidazoles or oximes.
  • examples are Tetraacetylethylenediamine TAED, Tetraacetylmethylenediamine TAMD and Tetraacetylhexylenediamine TAHD, but also pentaacetylglucose PAG, 1,5-diacetyl-2,2-dioxo-hexahydro-1,3,5-triazine DADHT and isatoic anhydride ISA.
  • bleach activator proportions between 1 and 5% by weight based on the entire preparation.
  • Enzymes between 0 and 5% by weight of the cleaning agent Enzymes based on the entire preparation are added to the To increase the performance of the cleaning agents or under milder conditions To ensure cleaning performance of the same quality.
  • the most common Enzymes used include lipases, amylases, cellulases and proteases.
  • Preferred proteases are e.g. B. BLAP®140 from Biozym, Optimase®-M-440 and Opticlean®-M-250 from Solvay Enzymes; Maxacal®CX and Maxapem® or Esperase® from Gist Brocades or Savinase® from Novo.
  • Celluzym® 0.7 T and. are particularly suitable cellulases and lipases Lipolase® 30 T from Novo Nordisk. Special use as amylases find Termamyl® 60 T, and Termamyl® 90 T and Duramyl® from Novo, Amylase-LT® from Solvay Enzymes or Maxamyl® P5000 from Gist Brocades but also other enzymes can be used.
  • Surfactants can also be added to the dishwashing detergent according to the invention , in particular the nonionic surfactants, such as alkyl polyglycosides, ethoxylated fatty alcohols and glucamides are preferred.
  • Alkyl polyglycosides are surfactants caused by the reaction of sugars and Alcohols according to the relevant procedures of preparative organic Chemistry can be obtained, depending on the type of manufacture to one Mixture of monoalkylated, oligomeric or polymeric sugar comes.
  • Preferred Alkyl polyglycosides can be alkyl polyglucosides, with particular preference the alcohol is a long chain fatty alcohol or a mixture of long chain Is fatty alcohols and the degree of oligomerization of the sugars is between 1 and 10.
  • alkoxylated alcohols as Reaction products of alkylene oxide, preferably ethylene oxide, with alcohols, preferred in the sense of the present invention, the longer-chain alcohols. In usually arise from n moles of ethylene oxide and one mole of alcohol, depending a complex mixture of addition products from the reaction conditions different degrees of ethoxylation. Another embodiment exists when using mixtures of the alkylene oxides preferred the mixture of Ethylene oxide and propylene oxide. You can also, if desired, by a final etherification with short-chain alkyl groups, such as the Butyl group, to the substance class of "closed" alcohol ethoxylates arrive, which can also be used in the sense of the invention. All are particularly preferred for the purposes of the present invention highly ethoxylated fatty alcohols or mixtures thereof end-capped fatty alcohol ethoxylates.
  • Fatty acid polyhydroxylamides are acylated reaction products of the reductive amination of a sugar (glucose) with ammonia, whereby long-chain fatty acids, long-chain fatty acid esters or long-chain fatty acid chlorides are generally used as acylating agents.
  • Secondary amides are formed when reducing with methylamine or ethylamine instead of with ammonia, such as. B. in S ⁇ FW-Journal, 119, (1993), 794-808.
  • Carbon chain lengths of C 8 to C 12 in the fatty acid residue are preferably used.
  • Dishwashing agents according to the invention can be used to protect the items to be washed or the machine contain other corrosion inhibitors, especially Silver protection agent in the field of automatic dishwashing a special one Have meaning as z. B. in DE 43 25 922, DE 41 28 672 or DE 43 38 724 are described.
  • active chlorine-containing agents which corrode the Can significantly reduce the silver surface.
  • oxygen and nitrogenous organic redox-active compounds such as di- and trihydric phenols, e.g. B. Hydroquinone, pyrocatechol, hydroxyhydroquinone, gallic acid, phloroglucin, Pyrogallol or derivatives of these classes of compounds.
  • salt and complex inorganic compounds such as salts of the metals Mn, Ti, Zr, Hf, V, Co and Ce are often used. Zinc compounds can also be used to prevent corrosion on the wash ware.
  • composition of the component according to the invention is a composition of the component according to the invention:
  • This component was in amounts up to 6 wt .-%, based on the finished Means in one or more subsequent mixing steps with other Recipe ingredients for a dishwashing detergent for the machine Dishwashing mixed.
  • Table (I) shows the compositions of the granules used.
  • Surfactants e.g. Dehydol® LS4 (nonionic surfactant: coconut alcohol-4EO), Dehypon® LS54 (Nonionic surfactant: coconut alcohol-5EO4PO), Plurafac® LF 403 (nonionic surfactant C11-C13, 4EO-3PO),
  • Polyethylene glycols Different molecular weights were used, e.g. B. 1500.
  • Paraffins Macrocrystalline paraffins with melting points were preferred between 40 ° C and 60 ° C and microcrystalline paraffins with melting points between 60 ° C and 75 ° C, as well as mixtures of macrocrystalline and microcrystalline Paraffins with melting points between 45 ° C and 65 ° C used.
  • Components I-VII had a particle size between 0.1 and 1.6 millimeters.
  • Components I to VII were with percarbonate / TAED or perborate / TAED and the usual detergent components (citrate / phosphate, alkali carrier, enzymes) mixed up.
  • the powder mixture is spread on crystallizing dishes and stored open for four days at 30 ° C and 80% relative humidity. Find oxidative processes and decomposition of the benzotriazole take place, that's it Powder colored yellow and has an unpleasant smell of garlic or Almond oil.

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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)
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Abstract

Pourable granular particles (P) containing the following components: (I) a solid organic redox-active component with a m.pt. greater than 50 degrees C, preferably a benzotriazole; (II) components which are solid at the m.pt. of (I), chosen from standard dishwasher powder builders or at least one hydrocarbon, or mixtures of these; and (III) one or more additional components chosen from polar organic solvents or surfactants. The ratio of (I) to (II) is 1-2:1-100 (1-2:3-50). Particle size is 0.01-2 (0.1-1.6) mm. Also claimed are: (i) the preparation of (P) by spraying liquid (I) onto (II); and (ii) dishwasher powders containing (P), preferably in an amount of 1-40 wt.%.

Description

Die Anmeldung betrifft benzotriazolhaltige, granulare Komponenten für den Einsatz in MGSM und Verfahren zu dessen HerstellungThe application relates to granular components containing benzotriazole for the Use in MGSM and process for its production

Granulare Reinigungsnsmittel für MGSM sind bekannt, weil sie gut dosierbar schütt- und rieselfähig, lagerstabil und optisch ansprechend für den Verbraucher sind.Granular cleaning agents for MGSM are known because they are easy to dose pourable and pourable, stable in storage and visually appealing to the consumer are.

Benzotriazol ist eine Korrosionsschutzkomponente, die in aktivsauerstoffhaltigen Reinigern heute weit verbreitet ist. Die chemische Stabilität in diesen Systemen ist aber nur bedingt gegeben, da Benzotriazol von Oxidationsmitteln leicht abgebaut wird. Dabei entstehen vor allem bei längerer Lagerung z.B. gelb gefärbte und unangenehm riechende Oxidationsprodukte, die zur Verfärbung des Reinigers, dem Verlust der Korrosionsschutzwirkung und zur mangelnden Akzeptanz des Produktes beim Verbraucher führen.Benzotriazole is a corrosion protection component that in active oxygen Cleaners is widely used today. The chemical stability in these systems is only given to a limited extent, since benzotriazole is easily oxidized is broken down. This is especially the case with longer storage, e.g. yellow colored and unpleasant smelling oxidation products that discolor the Cleaner, the loss of corrosion protection and the lack of Acceptance of the product by the consumer.

Aus der britischen Patentschrift GB 1 400 444 (Unilever) sind Granulate bekannt, die einen organischen extrudierbaren Feststoff gleichmäßig dispergiert enthalten, der ausgewählt ist aus der Gruppe der Korrosionsinhibitoren, wie der Benzotriazole, der Bismethylenbenzotriazole, der ethoxylierten Phosphatester, der Oxime und der Hydroxamate und die zur Einarbeitung in Waschmittelpulverzusammensetzung geeignet sind. Wichtig dabei ist, daß der extrudierbare Feststoff so gewählt ist, daß das Granulat in 20°C warmen Wasser innerhalb 10 Minuten, bevorzugt innerhalb 2 Minuten aufgelöst wird. Das beschriebene Verfahren beansprucht alle

Figure 00010002
geeigneten
Figure 00010001
Prozesse, die Arbeit auf die Mixtur des organischen extrudierbaren Feststoffs ausüben. Beispielhaft genannt für solche geeigneten Prozesse sind Mahlen, Pelletieren, Extrudieren, Stampfen und Pressen. Die Patentschrift deutet an, daß es durch die Verwendung von organischen Feststoffen in der Regel in Waschmitteln, die die erfindungsgemäßen Granulate enthalten, nicht zur Segregation von verschiedenartigen Teilchen kommen wird.From the British patent GB 1 400 444 (Unilever) granules are known which contain an organic extrudable solid, uniformly dispersed, which is selected from the group of corrosion inhibitors, such as benzotriazoles, bismethylene benzotriazoles, ethoxylated phosphate esters, oximes and hydroxamates and which are suitable for incorporation into detergent powder compositions. It is important that the extrudable solid is selected so that the granules are dissolved in water at 20 ° C. within 10 minutes, preferably within 2 minutes. The method described claims everyone
Figure 00010002
suitable
Figure 00010001
Processes that work on the mixture of organic extrudable solid. Examples of such suitable processes are grinding, pelleting, extruding, tamping and pressing. The patent indicates that the use of organic solids, as a rule in detergents which contain the granules according to the invention, will not result in segregation of different types of particles.

Die WO 95/1416 (Procter & Gamble) beschreibt eine Bleichzusammensetzung, die für das maschinelle Geschirrspülen geeignet ist, die eine Sauerstoffbleichmittel, Paraffinöl und eine Benzotriazolkomponente enthält, wobei die Gesamtkomponente zum Einsatz in Waschmitteln gedacht ist. Die Komponenten können als Pulver, Granulate, Pasten, Flüssigkeiten, Gele, Tabletten vorliegen, wobei granulare Zubereitungsformen bevorzugt sind. Dichten von mindestens 650 g/l oder üblicherweise mindestens 700 g/l und bevorzugt zwischen 800 und 1200 g/l sowie Teilchengrößen, die so verteilt sind, daß nicht mehr als 5% der Partikel größer als 1,4 mm im Durchmesser und nicht mehr als 5% der Partikel weniger als 0,15 mm im Durchmesser betragen, sind bevorzugt. In der Anmeldung werden mehrere Verfahren beschrieben, diese Granulate zu erhalten. Ein bevorzugter Prozeß zur Herstellung der Verbindung beinhaltet das Vormischen von Paraffinöl und einem Dispersionsmittel, wobei dieses Vorgemisch auf den Rest der Zusammensetzung aufgesprüht wird. Das Dispersionsmittel ist vorteilhafterweise nichtionisches Tensid. Aber auch eine Methode des Aufsprühens von Paraffinöl und Dispersionsmittel auf das Bleichmittel, mit der damit verbundenen Reduzierung der Lösegeschwindigkeit des Bleichmittels in Wasser, dem sogenannten "coaten", ist bevorzugt, wobei die gecoateten Bleichpartikel danach in einem Trockenmischprozess mit dem Rest der Zusammensetzung vermengt wird. Ebenfalls beschrieben ist die Kompaktierung des Bleichmittels bevor man es mit den restlichen Inhaltsstoffen der Zusammensetzung trocken vermischt. Es gibt keine Anweisung wie Benzotriazol homogen in eine gut rieselfähige Geschirrspülmittelkomponente eingearbeitet werden soll. WO 95/1416 (Procter & Gamble) describes a bleaching composition which is suitable for automatic dishwashing, the one Contains oxygen bleach, paraffin oil and a benzotriazole component, the entire component is intended for use in detergents. The Components can be powder, granules, pastes, liquids, gels, Tablets are present, with granular preparation forms being preferred. Densities of at least 650 g / l or usually at least 700 g / l and preferably between 800 and 1200 g / l and particle sizes which are distributed in such a way that no more than 5% of the particles are larger than 1.4 mm in diameter and not more than 5% of the particles are less than 0.15 mm in diameter prefers. Several procedures are described in the application, these To obtain granules. A preferred process for making the connection involves premixing paraffin oil and a dispersant, where this premix is sprayed onto the rest of the composition. The The dispersant is advantageously nonionic surfactant. But also one Method of spraying paraffin oil and dispersant on the Bleach, with the associated reduction in dissolving speed of the bleaching agent in water, the so-called "coating", is preferred, the coated bleach particles thereafter in a dry mixing process with the rest the composition is mixed. The is also described Compact the bleach before mixing it with the rest of the ingredients the composition mixed dry. There is no instruction how Benzotriazole homogeneously in a free-flowing dishwasher detergent component should be incorporated.

Die Patentschrift US 4 321 166 (Procter & Gamble) beschreibt builderfreie, flüssige Waschmittelsysteme, die als Korrosionsinhibitor eine Mischung aus aromatischen Triazolen und oligomeren olefinischen Fettsäuren enthalten. Das Antikorrosionsmittel soll hierbei die Verfärbung der metallenen Waschkörbe in automatischen Waschmaschinen und die Verfärbung von Fasern, die in Kontakt mit den Waschkörben kommen, verhindern. In der Schrift ist kein Hinweis darauf gegeben, wie organische redoxaktive Substanzen homogen in Bleichmittelkomponenten eingearbeitet werden können, und wie Silberschutz durch diese Komponenten erreicht werden kann.The US Pat. No. 4,321,166 (Procter & Gamble) describes builder-free, liquid detergent systems that act as a corrosion inhibitor aromatic triazoles and oligomeric olefinic fatty acids. The Anti-corrosion agents are said to discolor the metal wash baskets in automatic washing machines and the discoloration of fibers in contact prevent coming with the wash baskets. There is no reference to this in the scriptures given how organic redox-active substances homogeneous in Bleach components can be incorporated, and like silver protection can be achieved through these components.

Keine der oben genannten Patentschriften zeigt aber, wie eine Benzotriazol enthaltende granulare gut rieselförmige Komponente herstellbar ist. Das Problem liegt u.a. darin, daß Benzotriazol enthaltende Mischungen, die nach den üblichen Methoden der Granulation, wie zum Beispiel der Verwendung von Flüssigkeiten zum Kornaufbau, hergestellt werden, schlecht zu verarbeiten sind, da das Gemisch zum Verbacken neigt und daher schlecht rieselfähig ist. Die physikalische Eigenschaft der Rieselfähigkeit der Komponente sollte über einen langen Zeitraum stabil gehalten werden. Aber auch die chemische Stabilität von Benzotriazol enthaltenden Komponenten kann mit den Erkenntnissen der obigen Schriften nicht gelöst werden. Diese Eigenschaft wird um so wichtiger vor dem Hintergrund der Einarbeitung dieser Komponenten in Maschinengeschirrspülmittel. Hier sind die Eigenschaften der physikalischen und chemischen Stabilität der granularen Komponenten besonders wünschenswert. Besonders Benzotriazol soll bei Anwesenheit von oxidativ wirksamen Komponenten stabil bleiben, damit es noch als Silberschutzmittel wirksam sein kann.However, none of the above-mentioned patents shows how a benzotriazole containing granular well poured component can be produced. The problem lies among other things in that mixtures containing benzotriazole, according to the usual Methods of granulation, such as the use of liquids to build grain, are difficult to process, because that Mixture tends to cake and is therefore difficult to pour. The The physical property of the pourability of the component should have one be kept stable for a long period of time. But also the chemical stability of Components containing benzotriazole can use the knowledge of the above Fonts cannot be resolved. This property becomes all the more important before Background to the incorporation of these components in Dishwasher detergent. Here are the characteristics of the physical and chemical stability of the granular components is particularly desirable. Benzotriazole in particular is said to be oxidatively active in the presence of Components remain stable so that it can still be effective as a silver protection agent can.

Aufgabe war ein gut rieselfähiges, lagerstabiles, homogenes Granulat verfügbar zu machen, welches Benzotriazol enthält und als Silberschutz für das maschinelle Geschirrspülen geeignet ist. Das im Granulat enthaltende Benzotriazol sollte gegen oxidativen Angriff geschützt werden. The task was to provide a free-flowing, storage-stable, homogeneous granulate to make, which contains benzotriazole and as silver protection for the machine dishwashing is suitable. The one contained in the granulate Benzotriazole should be protected against oxidative attack.

Gegenstand der vorliegenden Erfindung ist eine granulare rieselförmige Komponente beinhaltend einen bei einer Temperatur oberhalb 50 °C schmelzbaren Feststoff (I) aus der Gruppe organischen redoxaktiven Substanzen, bevorzugt aus der Gruppe der Benzotriazole und einen bei dessen Schmelztemperatur festen Bestandsanteil (II) ausgewählt aus der Gruppe der in Geschirrspülmitteln üblichen Builderkomponenten und eine oder mehrere weitere Bestandteile aus der Gruppe der Kohlenwasserstoffe bzw. deren Gemische und ein oder mehrere weitere Bestandteile aus der Gruppe umfassend die polaren organischen Lösungsmittel und die Tenside enthält, wobei das Verhältnis zwischen Feststoff (I) und Feststoff (II) zwischen 1 zu 100 und 2 zu 1, bevorzugt zwischen 1 zu 70 und 3 zu 2 und besonders bevorzugt zwischen 1 zu 50 und 2 zu 3 liegt und die Komponente eine Teilchengröße zwischen 0,01 und 2 Millimetern, bevorzugt 0,05 und 1,8 Millimetern und besonders bevorzugt zwischen 0,1 und 1,6 Millimetern aufweist.The present invention relates to a granular, free-flowing Component containing one at a temperature above 50 ° C meltable solid (I) from the group organic redox-active Substances, preferably from the group of benzotriazoles and one of the Melting temperature fixed inventory component (II) selected from the group of in Dishwasher detergents usual builder components and one or more others Components from the group of hydrocarbons or their mixtures and one or more further constituents from the group comprising the polar contains organic solvents and the surfactants, the ratio between solid (I) and solid (II) between 1 to 100 and 2 to 1, preferred between 1 to 70 and 3 to 2 and particularly preferably between 1 to 50 and 2 to 3 and the component has a particle size between 0.01 and 2 Millimeters, preferably 0.05 and 1.8 millimeters and particularly preferred between 0.1 and 1.6 millimeters.

In den erfindungsgemäßen Komponenten können wasserlösliche und wasserunlösliche Builder eingesetzt werden. Dabei sind wasserlösliche Builder bevorzugt, da sie auf Geschirr und harten Oberflächen in der Regel weniger dazu tendieren unlösliche Rückstände zu bilden. Übliche Builder, die zugegen sein können, sind die niedermolekularen Polycarbonsäuren und ihre Salze, die homopolymeren und copolymeren Polycarbonsäuren und ihre Salze, die Carbonate, Phosphate und Silikate. Zu wasserunlöslichen Buildern zählen die Zeolithe, die ebenfalls verwendet werden können, ebenso wie Mischungen der vorgenannten Buildersubstanzen. Für die erfindungsgemäßen Komponenten werden bevorzugt Trinatriumcitrat und/oder Soda und/oder Bicarbonat und/oder Alkalitripolyphosphate und/oder Disilikat und/oder Metasilkat eingesetzt.Water-soluble and water-insoluble builders can be used. There are water-soluble builders preferred as they are usually less on dishes and hard surfaces tend to form insoluble residues. Usual builders present may be the low molecular weight polycarboxylic acids and their salts, the homopolymeric and copolymeric polycarboxylic acids and their salts, the Carbonates, phosphates and silicates. Water-insoluble builders include Zeolites, which can also be used, as well as mixtures of the aforementioned builder substances. For the components according to the invention are preferably trisodium citrate and / or soda and / or bicarbonate and / or Alkali tripolyphosphates and / or disilicate and / or metasilicate used.

Die erfindungsgemäßen granularen Komponenten beinhalten zwischen 0,001 Gew.-% und 50 Gew.-% bevorzugt zwischen 0,05 und 20 Gew.-% und besonders bevorzugt zwischen 0,5 und 10 Gew.-% Benzotriazolverbindungen. Der Fachmann versteht unter Benzotriazolverbindungen alle chemischen Derivate des Benzotriazolgerüstes. Derivate des Benzotriazols, im Sinne der vorliegenden Erfindung, sind vor allen Dingen die am aromatischen Ring ganz oder teilweise substituierten Verbindungen, wobei geeignete Substituenten lineare oder verzweigte Alkylketten mit 1 bis 20 Kohlenstoffatomen sein können. Aber auch OH, SH, Vinyl- oder Halogengruppen sind denkbar. Besonders die in der britischen Patentschrift GB 1 065 995 genannten Benzotriazolderivate sind geeignet, aber auch die in der britischen Patentschrift GB 1 226 100 beschriebenen 4, 5, 6, 7, Tetrahydrobenzotriazole können Verwendung finden. Ebenfalls geeignet sind Derivate des Bisbenzotriazols, wie sie unter anderem in der britischen Schrift GB 1 180 437 beschrieben sind.The granular components according to the invention contain between 0.001 % By weight and 50% by weight, preferably between 0.05 and 20% by weight and particularly preferably between 0.5 and 10% by weight of benzotriazole compounds. The expert understands by benzotriazole compounds all chemical Derivatives of the benzotriazole skeleton. Derivatives of benzotriazole, in the sense of present invention, above all, those on the aromatic ring are whole or partially substituted compounds, with suitable substituents can be linear or branched alkyl chains with 1 to 20 carbon atoms. But OH, SH, vinyl or halogen groups are also conceivable. Especially the one in British Patent GB 1,065,995 called benzotriazole derivatives suitable, but also that in British Patent GB 1 226 100 4, 5, 6, 7, tetrahydrobenzotriazoles described can be used. Derivatives of bisbenzotriazole, as described, inter alia, in the British document GB 1 180 437 are described.

Bevorzugt im Sinne der Erfindung sind Mittel, bei denen das Verhältnis zwischen Feststoff (I) und Feststoff (II) zwischen 1 zu 100 und 2 zu 1, bevorzugt zwischen 1 zu 70 und 3 zu 2 und besonders bevorzugt zwischen 1 zu 50 und 2 zu 3 liegt.For the purposes of the invention, means are preferred in which the ratio between Solid (I) and solid (II) between 1 to 100 and 2 to 1, preferably between 1 to 70 and 3 to 2 and particularly preferably between 1 to 50 and 2 to 3.

Ein wichtiger Parameter für die vorliegenden Mittel ist die Teilchengröße der Komponente, die zwischen 0,01 und 2 Millimetern, bevorzugt 0,05 und 1,8 Millimetern und besonders bevorzugt zwischen 0,1 und 1,6 Millimetern liegen sollte.An important parameter for the present means is the particle size of the Component that is between 0.01 and 2 millimeters, preferably 0.05 and 1.8 Millimeters and particularly preferably between 0.1 and 1.6 millimeters should.

Ein weiterer Gegenstand der Erfindung ist die Verwendung dieser granularen rieselförmigen Komponente als Silberschutzmittel in maschinellen Geschirrspülmitteln.Another object of the invention is the use of these granular trickle-shaped component as a silver protection agent in automatic dishwashing detergents.

Ein weiterer Gegenstand der Erfindung ist ein Verfahren zur Herstellung granularer rieselförmiger Komponenten, das dadurch gekennzeichnet ist, daß man den oberhalb 50 °C schmelzenden Feststoff (I) in flüssiger Form bei erhöhter Temperatur auf den Feststoff (II) aufsprüht.Another object of the invention is a method for manufacturing granular free-flowing components, which is characterized in that the solid (I) melting above 50 ° C. in liquid form sprayed onto the solid (II) at elevated temperature.

Dabei kann kontinuierlich oder im Batch-Verfahren gearbeitet werden. Der grobkörnige Feststoff (I), bevorzugt grobkörniges Natriumcitrat und/oder grobkörnige Soda und/oder grobkörniges Natriumbicarbonat wird in einem handelsüblichen Mischer, bevorzugt einem Pflugscharmischer, unter möglichst geringem Energieeintrag und auf eine Weise, die den Abrieb des Kornes minimiert, beispielsweise ohne den Einsatz eines Messerkranzes, innerhalb kurzer Zeit, bevorzugt zwischen 1 und 5 Minuten, besonders bevorzugt 3 Minuten bei einer Düstemperatur von oberhalb 100 °C, bevorzugt oberhalb 105 °C besonders bevorzugt zwischen 110 und 120 °C mit dem organischen Feststoff (II) in flüssiger Form bedüst, und gegebenenfalls abgekühlt oder auch abkühlen gelassen. Darüberhinaus können noch weitere bei der Waschmittelgranulation übliche Schritte, wie etwa Coaten, Imprägnieren, Zumischen von Fließverbesserern, Trocknen, Ertrudieren, u.ä. zur Einstellung der Pulvereigenschaften durchgeführt werden. Besonders geeignet ist dabei die Zumischung von Fließverbesserern.This can be done continuously or in a batch process. Of the coarse-grained solid (I), preferably coarse-grained sodium citrate and / or coarse-grain soda and / or coarse-grained sodium bicarbonate is combined in one commercial mixer, preferably a ploughshare mixer, if possible low energy input and in a way that reduces the abrasion of the grain minimized, for example without the use of a knife ring, inside short time, preferably between 1 and 5 minutes, particularly preferably 3 Minutes at a spray temperature of above 100 ° C, preferably above 105 ° C particularly preferably between 110 and 120 ° C with the organic Brushed solid (II) in liquid form, and optionally cooled or let cool. In addition, more can be used for detergent granulation usual steps, such as coating, impregnation, mixing in Flow improvers, drying, eroding, etc. for setting the powder properties be performed. The is particularly suitable Admixture of flow improvers.

In diesem Verfahren kann die Schmelze des organischen Feststoffs (I) eingesetzt werden. In einer bevorzugten Ausführungsform der Erfindung wird allerdings der Stoff (I) in Form einer Lösung in einem organischen Lösungsmittel (III), bevorzugt in polaren organischen Flüssigkeiten, besonders bevorzugt in Konzentrationen von mehr als 30 Gew.% eingesetzt. Dieses Lösungsmittel (III) wird bevorzugt ausgewählt aus der Gruppe bestehend aus Methanol, Ethanol, Isopropanol, Ethylenglycol, Propylenglykol, Aceton, Methylethylketon, Polyethylenglycolen und Polypropylenglycolen.The melt of the organic solid (I) can be used in this process will. In a preferred embodiment of the invention, however, the Substance (I) in the form of a solution in an organic solvent (III) is preferred in polar organic liquids, particularly preferably in concentrations of more than 30% by weight. This solvent (III) is preferred selected from the group consisting of methanol, ethanol, isopropanol, Ethylene glycol, propylene glycol, acetone, methyl ethyl ketone, polyethylene glycols and polypropylene glycols.

Ebenfalls bevorzugt als Lösungsmittel ist aber auch die Gruppe der Tenside, wobei die nichtionischen Tenside besonders bevorzugt werden. Ganz besonders bevorzugt im Sinne der Erfindung sind die Tenside aus der Gruppe der Alkylpolyglycoside, der Fettalkoholethoxylate bzw. -propoxylate und deren Ester.Also preferred as the solvent is the group of surfactants, the nonionic surfactants being particularly preferred. Most notably preferred in the sense of the invention are the surfactants from the group of Alkyl polyglycosides, the fatty alcohol ethoxylates or propoxylates and their esters.

Einen besonders positiven Effekt hat ein abschließendes Besprühen der nach obigem Verfahren hergestellten granularen Komponenten mit Kohlenwasserstoffen oder einem Gemisch aus Kohlenwasserstoffen mit einem Schmelzpunkt zwischen 30°C und 120°C, bevorzugt zwischen 30 und 80°C, besonders bevorzugt zwischen 45°C und 65°C bei erhöhter Temperatur. Bevorzugt verwendet werden im Sinne der vorliegenden Erfindung vor allem makrokristalline Paraffine mit Schmelzpunkten zwischen 40°C und 60°C, mikrokristalline Paraffine mit Schmelzpunkten zwischen 60°C und 75°C und Gemische zwischen makro- und mikrokristallinen Paraffinen mit Schmelzpunkten von z.B. zwischen 45°C und 65°C. Aber auch andere Kohlenwasserstoffe und Gemische von Kohlenwasserstoffen können eingesetzt werden.A final spraying of the after has a particularly positive effect Granular components with hydrocarbons produced by the above method or a mixture of hydrocarbons with a melting point between 30 ° C and 120 ° C, preferably between 30 and 80 ° C, particularly preferably between 45 ° C and 65 ° C at elevated temperature. Prefers are used above all in the sense of the present invention macrocrystalline paraffins with melting points between 40 ° C and 60 ° C, microcrystalline paraffins with melting points between 60 ° C and 75 ° C and Mixtures between macro and micro crystalline paraffins with melting points from e.g. between 45 ° C and 65 ° C. But also other hydrocarbons and Mixtures of hydrocarbons can be used.

Nach einem möglichen Abkühlungsschritt kann noch mit weiterem Feststoff (II) aus der Gruppe der Buildersubstanzen versetzt werden, wodurch eine gut rieselfähige granulare Komponente entsteht, die sich sehr gut in Geschirrspülmittel einarbeiten läßt und lagerstabile Reinigungsmittel mit gutem Silberschutz ergibt. Darüberhinaus können noch weitere bei der Waschmittelgranulation übliche Schritte, wie etwa Coaten, Imprägnieren, Zumischen von Fließverbesserern, Trocknen, Extrudieren, u.ä. zur Einstellung der Pulvereigenschaften durchgeführt werden.After a possible cooling step, another solid (II) from the group of builder substances, which makes a good free-flowing granular component is created, which is very good in Lets incorporate dishwashing detergent and storage-stable cleaning agents with good Silver protection results. In addition, more can be found at Detergent granulation usual steps, such as coating, impregnation, Admixing flow improvers, drying, extruding, etc. for adjustment the powder properties.

Ein weiterer Gegenstand der Erfindung ist ein Geschirrspülmittel, enthaltend eine granulare Komponente, bevorzugt in Mengen zwischen 1 und 40 Gew.-% bezogen auf die gesamte Mischung, wobei das Geschirrspülmittel auch weitere in Geschirrspülmitteln übliche Komponenten, wie Buildersubstanzen, Blechmittel, Tenside, Korrosionsschutzmittel, Polymere, andere Silberschutzmittel, Entschäumer, Parfum- und Duftstoffe und andere enthalten kann.Another object of the invention is a dishwashing detergent containing granular component, preferably in amounts between 1 and 40% by weight based on the entire mixture, the dishwashing detergent also others Components common in dishwashing detergents, such as builder substances, sheet metal detergents, Surfactants, corrosion protection agents, polymers, other silver protection agents, May contain defoamers, perfumes and fragrances and others.

In den erfindungsgemäßen Reinigungsmitteln können wasserlösliche und wasserunlösliche Builder vor allem zum Binden von Calcium und Magnesium eingesetzt werden. Dabei sind wasserlösliche Builder bevorzugt, da sie auf Geschirr und harten Oberflächen in der Regel weniger dazu tendieren unlösliche Rückstände zu bilden. Übliche Builder, die im Rahmen der Erfindung zwischen 10 und 90 Gew.-% bezogen auf die gesamte Zubereitung zugegen sein können, sind die niedermolekularen Polycarbonsäuren und ihre Salze, die homopolymeren und copolymeren Polycarbonsäuren und ihre Salze, die Carbonate, Phosphate und Silikate. Zu wasserunlöslichen Buildern zählen die Zeolithe, die ebenfalls verwendet werden können, ebenso wie Mischungen der vorgenannten Buildersubstanzen. Für die erfindungsgemäßen Reinigungsmittel werden bevorzugt Trinatriumcitrat und/oder Pentanatriumtripolyphosphat und silikatische Builder aus der Klasse der Disilikate eingesetzt.Water-soluble and water-insoluble builders especially for binding calcium and magnesium be used. Water-soluble builders are preferred because they are based on Dishes and hard surfaces tend to be less insoluble To form residues. Usual builders that are within the scope of the invention 10 and 90% by weight, based on the total preparation, can be present, are the low molecular weight polycarboxylic acids and their salts, the homopolymeric and copolymeric polycarboxylic acids and their salts, the Carbonates, phosphates and silicates. Water-insoluble builders include Zeolites, which can also be used, as well as mixtures of the aforementioned builder substances. For the cleaning agents according to the invention are preferred trisodium citrate and / or pentasodium tripolyphosphate and silicate builders from the class of disilicates used.

Als weitere Bestandteile können Alkaliträger zugegen sein. Als Alkaliträger gelten Alkalimetallhydroxide, Alkalimetallcarbonate, Alkalimetallhydrogencarbonate, Alkalimetallsesquicarbonate, Alkalisilikate, Alkalimetasilikate, und Mischungen der vorgenannten Stoffe, wobei im Sinne dieser Erfindung bevorzugt die Alkalicarbonate, insbesondere Natriumcarbonat, Natriumhydrogencarbonat oder Natriumsesquicarbonat eingesetzt werden.Alkali carriers can be present as further constituents. Are considered to be alkali carriers Alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, Alkali metal sesquicarbonates, alkali silicates, alkali metal silicates, and mixtures the abovementioned substances, the preferred being in the sense of this invention Alkali carbonates, especially sodium carbonate, sodium hydrogen carbonate or Sodium sesquicarbonate can be used.

Bekannte Bleichaktivatoren sind Verbindungen, die eine oder mehrere N- bzw. O-Acylgruppen enthalten, wie Substanzen aus der Klasse der Anhydride, der Ester, der Imide und der acylierten Imidazole oder Oxime. Beispiele sind Tetraacetylethylendiamin TAED, Tetraacetylmethylendiamin TAMD und Tetraacetylhexylendiamin TAHD, aber auch Pentaacetylglucose PAG, 1,5-Diacetyl-2,2-dioxo-hexahydro-1,3,5-triazin DADHT und Isatosäureanhydrid ISA. Für die vorliegende Erfindung haben sich Bleichaktivatorenanteile zwischen 1 und 5 Gew.-% bezogen auf die gesamte Zubereitung bewährt.Known bleach activators are compounds that contain one or more N or O-acyl groups, like substances from the class of anhydrides, contain Esters, the imides and the acylated imidazoles or oximes. examples are Tetraacetylethylenediamine TAED, Tetraacetylmethylenediamine TAMD and Tetraacetylhexylenediamine TAHD, but also pentaacetylglucose PAG, 1,5-diacetyl-2,2-dioxo-hexahydro-1,3,5-triazine DADHT and isatoic anhydride ISA. For the present invention, bleach activator proportions between 1 and 5% by weight based on the entire preparation.

Erfindungsgemäß können dem Reinigungsmittel zwischen 0 und 5 Gew.-% Enzyme bezogen auf die gesamte Zubereitung zugesetzt werden, um die Leistung der Reinigungsmittel zu steigern oder unter milderen Bedingungen die Reinigungsleistung in gleicher Qualität zu gewährleisten. Zu den am häufigsten verwendeteten Enzymen gehören Lipasen, Amylasen, Cellulasen und Proteasen. Bevorzugte Proteasen sind z. B. BLAP®140 der Fa. Biozym, Optimase®-M-440 und Opticlean®-M-250 der Fa. Solvay Enzymes; Maxacal®CX und Maxapem® oder Esperase® der Fa. Gist Brocades oder auch Savinase® der Fa. Novo. According to the invention, between 0 and 5% by weight of the cleaning agent Enzymes based on the entire preparation are added to the To increase the performance of the cleaning agents or under milder conditions To ensure cleaning performance of the same quality. The most common Enzymes used include lipases, amylases, cellulases and proteases. Preferred proteases are e.g. B. BLAP®140 from Biozym, Optimase®-M-440 and Opticlean®-M-250 from Solvay Enzymes; Maxacal®CX and Maxapem® or Esperase® from Gist Brocades or Savinase® from Novo.

Besonders geeignete Cellulasen und Lipasen sind Celluzym® 0,7 T und Lipolase® 30 T der Fa. Novo Nordisk. Besondere Verwendung als Amylasen finden Termamyl® 60 T, und Termamyl® 90 T und Duramyl® der Fa. Novo, Amylase-LT® der Fa. Solvay Enzymes oder Maxamyl® P5000 der Fa. Gist Brocades aber auch andere Enzyme können angewendet werden.Celluzym® 0.7 T and. Are particularly suitable cellulases and lipases Lipolase® 30 T from Novo Nordisk. Special use as amylases find Termamyl® 60 T, and Termamyl® 90 T and Duramyl® from Novo, Amylase-LT® from Solvay Enzymes or Maxamyl® P5000 from Gist Brocades but also other enzymes can be used.

Auch Tenside können dem erfindungsgemäßen Geschirrspülmittel zugesetzt werden, wobei besonders die nichtionischen Tenside , wie Alkylpolyglycoside, ethoxylierte Fettalkohole und Glucamide bevorzugt sind.Surfactants can also be added to the dishwashing detergent according to the invention , in particular the nonionic surfactants, such as alkyl polyglycosides, ethoxylated fatty alcohols and glucamides are preferred.

Alkylpolyglycoside sind Tenside, die durch die Reaktion von Zuckern und Alkoholen nach den einschlägigen Verfahren der präparativen organischen Chemie erhalten werden können, wobei es je nach Art der Herstellung zu einem Gemisch monoalkylierter, oligomerer oder polymerer Zucker kommt. Bevorzugte Alkylpolyglykoside können Alkylpolyglucoside sein, wobei besonders bevorzugt der Alkohol ein langkettiger Fettalkohol oder ein Gemisch langkettiger Fettalkohole ist und der Oligomerisierungsgrad der Zucker zwischen 1 und 10 ist.Alkyl polyglycosides are surfactants caused by the reaction of sugars and Alcohols according to the relevant procedures of preparative organic Chemistry can be obtained, depending on the type of manufacture to one Mixture of monoalkylated, oligomeric or polymeric sugar comes. Preferred Alkyl polyglycosides can be alkyl polyglucosides, with particular preference the alcohol is a long chain fatty alcohol or a mixture of long chain Is fatty alcohols and the degree of oligomerization of the sugars is between 1 and 10.

Der Fachmann versteht allgemein unter alkoxylierten Alkoholen die Reaktionsprodukte von Alkylenoxid, bevorzugt Ethylenoxid, mit Alkoholen, bevorzugt im Sinne der vorliegenden Erfindung die längerkettigen Alkohole. In der Regel enstehen aus n Molen Ethylenoxid und einem Mol Alkohol, abhängig von den Reaktionsbedingungen ein komplexes Gemisch von Additionsprodukten unterschiedlichen Ethoxylierungsgrades. Eine weitere Ausführungsform besteht im Einsatz von Gemischen der Alkylenoxide bevozugt des Gemisches von Ethylenoxid und Propylenoxid. Auch kann man gewünschtenfalls durch eine abschließende Veretherung mit kurzkettigen Alkylgruppen, wie bevorzugt der Butylgruppe, zur Substanzklasse der "verschlossenen" Alkoholethoxylaten gelangen, die ebenfalls im Sinne der Erfindung eingesetzt werden kann. Ganz besonders bevorzugt im Sinne der vorliegenden Erfindung sind dabei hochethoxylierte Fettalkohole oder deren Gemische mit endgruppenverschlossenen Fettalkoholethoxylaten.The person skilled in the art generally understands alkoxylated alcohols as Reaction products of alkylene oxide, preferably ethylene oxide, with alcohols, preferred in the sense of the present invention, the longer-chain alcohols. In usually arise from n moles of ethylene oxide and one mole of alcohol, depending a complex mixture of addition products from the reaction conditions different degrees of ethoxylation. Another embodiment exists when using mixtures of the alkylene oxides preferred the mixture of Ethylene oxide and propylene oxide. You can also, if desired, by a final etherification with short-chain alkyl groups, such as the Butyl group, to the substance class of "closed" alcohol ethoxylates arrive, which can also be used in the sense of the invention. All are particularly preferred for the purposes of the present invention highly ethoxylated fatty alcohols or mixtures thereof end-capped fatty alcohol ethoxylates.

Fettsäurepolyhydroxylamide (Glucamide) sind acylierte Reakionsprodukte der reduktiven Aminierung eines Zuckers (Glucose) mit Ammoniak, wobei als Acylierungsmittel in der Regel langkettige Fettsäuren, langkettige Fettsäureester oder langkettige Fettsäurechloride genutzt werden. Dabei entstehen sekundäre Amide, wenn man statt mit Ammoniak mit Methylamin oder Ethylamin reduziert, wie z. B. in SÖFW-Journal, 119, (1993), 794-808 beschrieben wird. Bevorzugt benutzt man Kohlenstoffkettenlängen von C8 bis C12 im Fettsäurerest.Fatty acid polyhydroxylamides (glucamides) are acylated reaction products of the reductive amination of a sugar (glucose) with ammonia, whereby long-chain fatty acids, long-chain fatty acid esters or long-chain fatty acid chlorides are generally used as acylating agents. Secondary amides are formed when reducing with methylamine or ethylamine instead of with ammonia, such as. B. in SÖFW-Journal, 119, (1993), 794-808. Carbon chain lengths of C 8 to C 12 in the fatty acid residue are preferably used.

Erfindungsgemäße Geschirrspülmittel können zum Schutze des Spülgutes oder der Maschine weitere Korrosionsinhibitoren enthalten, wobei besonders Silberschutzmittel im Bereich des maschinellen Geschirrspülens eine besondere Bedeutung haben, wie sie z. B. in der DE 43 25 922, der DE 41 28 672 oder der DE 43 38 724 beschrieben sind. Man findet in Reiniger-formulierungen darüberhinaus häufig aktivchlorhaltige Mittel, die das Korrodieren der Silberoberfläche deutlich vermindern können. In chlorfreien Reinigern werden gemäß der obigen Schriften besonders sauerstoff- und stickstoffhaltige organische redoxaktive Verbindungen, wie zwei- und dreiwertige Phenole, z. B. Hydrochinon, Brenzkatechin, Hydroxyhydrochinon, Gallussäure, Phloroglucin, Pyrogallol bzw. Derivate dieser Verbindungsklassen. Auch salz- und komplexartige anorganische Verbindungen, wie Salze der Metalle Mn, Ti, Zr, Hf, V, Co und Ce finden häufig Verwendung. Ebenfalls können Zinkverbindungen zur Verhinderung der Korrosion am Spülgut eingesetzt werden. Dishwashing agents according to the invention can be used to protect the items to be washed or the machine contain other corrosion inhibitors, especially Silver protection agent in the field of automatic dishwashing a special one Have meaning as z. B. in DE 43 25 922, DE 41 28 672 or DE 43 38 724 are described. One finds in cleaner formulations In addition, active chlorine-containing agents which corrode the Can significantly reduce the silver surface. In chlorine-free cleaners according to the above writings especially oxygen and nitrogenous organic redox-active compounds, such as di- and trihydric phenols, e.g. B. Hydroquinone, pyrocatechol, hydroxyhydroquinone, gallic acid, phloroglucin, Pyrogallol or derivatives of these classes of compounds. Also salt and complex inorganic compounds, such as salts of the metals Mn, Ti, Zr, Hf, V, Co and Ce are often used. Zinc compounds can also be used to prevent corrosion on the wash ware.

Beispiele:Examples: Zusammensetzung der erfindungsgemäßen Komponente:Composition of the component according to the invention:

27.9 kg grobkörnige Soda wurde in einem Lödige-Pflugscharmischer vorgelegt, ohne den Einsatz des Messerkranzes innerhalb 3 Minuten bei einer Schmelztemperatur von 110 und 120 °C mit 2.1 kg Benzotriazol bedüst, wobei nach dem Abkühlen auf Raumtemperatur eine gut rieselfähige granulare Komponente entstand.27.9 kg of coarse-grained soda was placed in a Lödige ploughshare mixer, without using the knife ring within 3 minutes at one Melting temperature of 110 and 120 ° C sprayed with 2.1 kg of benzotriazole, whereby after cooling to room temperature, a free-flowing granular Component was created.

Diese Komponente wurde in Mengen bis zu 6 Gew.-%, bezogen auf das fertige Mittel in einem oder mehreren nachfolgenden Mischschritten mit weiteren Rezepturbestandteilen zu einem Geschirrspülmittel für das maschinelle Geschirrspülen vermischt. Dies bestand z. B aus 25 g Natriumcitrat, 25 g Natriumcarbonat, 10 g Natriumperborat, 4 g Tetraethylendiamintetraessigsäure, 3,5 g Enzymen (wie Amylase, Protease und Lipase) und 2 g nichtionischen Tensiden (wie Alkylpolyglycosiden und ethoxylierten Fettalkoholen).This component was in amounts up to 6 wt .-%, based on the finished Means in one or more subsequent mixing steps with other Recipe ingredients for a dishwashing detergent for the machine Dishwashing mixed. This consisted e.g. B from 25 g sodium citrate, 25 g Sodium carbonate, 10 g sodium perborate, 4 g tetraethylenediaminetetraacetic acid, 3.5 g of enzymes (such as amylase, protease and lipase) and 2 g of nonionic Surfactants (such as alkyl polyglycosides and ethoxylated fatty alcohols).

Die erfindungsgemäßen Komponenten lassen sich sehr gut in Geschirrspülmittel einarbeiten und ergeben lagerstabile Reinigungsmittel mit gutem Silberschutz. In Tabelle (I) sind die Zusammensetzungen der verwendeten Granulate angegeben. Inhaltstoffe I II III IV V VI VII Benzotriazol 7 7 5 5 5 10 4,5 Soda 93 83 82 82 82 73 85 Tensid - - 5 - 2,5 7 - Polyethylenglycol - - - 5 2,5 - 6,5 Paraffin - 10 8 8 8 10 4 The components according to the invention can be incorporated very well into dishwashing detergents and give storage-stable cleaning agents with good silver protection. Table (I) shows the compositions of the granules used. Ingredients I. II III IV V VI VII Benzotriazole 7 7 5 5 5 10th 4.5 soda 93 83 82 82 82 73 85 Surfactant - - 5 - 2.5 7 - Polyethylene glycol - - - 5 2.5 - 6.5 paraffin - 10th 8th 8th 8th 10th 4th

Tenside: z.B. Dehydol® LS4 (Niotensid: Kokosalkohol-4EO), Dehypon® LS54 (Niotensid: Kokosalkohol-5EO4PO), Plurafac® LF 403 (Niotensid C11-C13, 4EO-3PO),Surfactants: e.g. Dehydol® LS4 (nonionic surfactant: coconut alcohol-4EO), Dehypon® LS54 (Nonionic surfactant: coconut alcohol-5EO4PO), Plurafac® LF 403 (nonionic surfactant C11-C13, 4EO-3PO),

Polyethylenglycole: Es wurden verschiedene Molekulargewichte eingesetzt, z. B. 1500.Polyethylene glycols: Different molecular weights were used, e.g. B. 1500.

Paraffine: Es wurden bevorzugt makrokristalline Paraffine mit Schmelzpunkten zwischen 40 °C und 60 °C und mikrokristalline Paraffine mit Schmelzpunkten zwischen 60 °C und 75 °C, sowie Gemische aus makrokristallinen und mikrokristallinen Paraffinen mit Schmelzpunktewn zwischen 45 °C und 65 °C eingesetzt.Paraffins: Macrocrystalline paraffins with melting points were preferred between 40 ° C and 60 ° C and microcrystalline paraffins with melting points between 60 ° C and 75 ° C, as well as mixtures of macrocrystalline and microcrystalline Paraffins with melting points between 45 ° C and 65 ° C used.

Die Komponenten I - VII hatten eine Teilchengröße zwischen 0,1 und 1,6 Millimetern.Components I-VII had a particle size between 0.1 and 1.6 millimeters.

Die Komponenten I bis VII wurden mit Percarbonat/TAED bzw. Perborat/TAED und den üblichen Reinigerbestandteilen (Citrat/Phosphat, Alkaliträger, Enzyme) aufgemischt. Das Pulvergemisch wird auf Kristallisierschalen ausgebreitet und vier Tage offen bei 30°C und 80% relativer Luftfeuchteigkeit gelagert. Finden dabei oxidative Prozesse und Zersetzung des Benzotriazols statt, so ist das Pulver gelb gefärbt und hat einen unangenehmen Geruch nach Knoblauch bzw. Mandelöl.Components I to VII were with percarbonate / TAED or perborate / TAED and the usual detergent components (citrate / phosphate, alkali carrier, enzymes) mixed up. The powder mixture is spread on crystallizing dishes and stored open for four days at 30 ° C and 80% relative humidity. Find oxidative processes and decomposition of the benzotriazole take place, that's it Powder colored yellow and has an unpleasant smell of garlic or Almond oil.

Die Mischungen wurden von mehreren Fachleuten auf dem Gebiet des maschinellen Geschirrspülens visuell und olfaktorisch untersucht. Die Ergebnisse des Lagertests sind in Tabelle (II) zusammengefaßt. Inhaltstoffe I II III IV V VI VII Oxidative Gelbfärbung stark gering keine keine keine keine keine Oxidative Geruchsveränderung stark gering keine keine keine keine keine Akzeptabel gemäß vorliegender Erfindung nein nein ja ja ja ja ja The blends have been visually and olfactively examined by several machine dishwashers. The results of the storage test are summarized in Table (II). Ingredients I. II III IV V VI VII Oxidative yellowing strong low none none none none none Oxidative odor change strong low none none none none none Acceptable according to the present invention No No Yes Yes Yes Yes Yes

Claims (13)

Granulare rieselförmige Komponente beinhaltend einen bei einer Temperatur oberhalb 50 °C schmelzbaren Feststoff (I) aus der Gruppe organischen redoxaktiven Substanzen, bevorzugt aus der Gruppe der Benzotriazole und einen bei dessen Schmelztemperatur festen Bestandsanteil (II) ausgewählt aus der Gruppe der in Geschirrspülmitteln üblichen Builderkomponenten und einen oder mehrere weitere Bestandteile aus der Gruppe der Kohlenwasserstoffe bzw. deren Gemische und -einen oder mehrere weitere Bestandteile aus der Gruppe umfassend die polaren organischen Lösungsmittel und die Tenside enthält,
wobei das Verhältnis zwischen Feststoff (I) und Feststoff (II) zwischen 1 zu 100 und 2 zu 1, bevorzugt zwischen 1 zu 70 und 3 zu 2 und besonders bevorzugt zwischen 1 zu 50 und 2 zu 3 liegt und die Komponente eine Teilchengröße zwischen 0,01 und 2 Millimetern, bevorzugt 0,05 und 1,8 Millimetern und besonders bevorzugt zwischen 0,1 und 1,6 Millimetern aufweist.
Including granular free-flowing component a meltable at a temperature above 50 ° C solid (I) from the group of organic redox-active substances, preferably from the group of benzotriazoles and a stock component (II) which is fixed at its melting temperature and selected from the group of builder components and contains one or more further constituents from the group of hydrocarbons or their mixtures and one or more further constituents from the group comprising the polar organic solvents and the surfactants,
the ratio between solid (I) and solid (II) between 1 to 100 and 2 to 1, preferably between 1 to 70 and 3 to 2 and particularly preferably between 1 to 50 and 2 to 3 and the component has a particle size between 0 , 01 and 2 millimeters, preferably 0.05 and 1.8 millimeters and particularly preferably between 0.1 and 1.6 millimeters.
Mittel nach Anspruch 1, dadurch gekennzeichnet, daß noch weitere in Geschirrpülmitteln übliche Inhaltstoffe enthalten sind.Agent according to claim 1, characterized in that still further in Dishwashing detergents contain the usual ingredients. Verwendung einer granularen rieselförmigen Komponente gemäß den Ansprüchen 1 und 2 als Silberschutzmittel in maschinellen Geschirrspülmitteln.Use of a granular free-flowing component according to the Claims 1 and 2 as silver protection agents in automatic dishwashing detergents. Verfahren zur Herstellung granularer rieselförmiger Komponenten, dadurch gekennzeichnet, daß man ein oberhalb 50 °C schmelzenden Feststoff (I) aus der Gruppe organischen redoxaktiven Substanzen, bevorzugt aus der Gruppe der Benzotriazole in flüssiger Form bei erhöhter Temperatur auf einen Feststoff (II) ausgewählt aus der Gruppe der in Geschirrspülmitteln üblichen Buildersubstanzen aufsprüht.Process for the production of granular free-flowing components, thereby characterized in that a solid (I) melting above 50 ° C is obtained the group of organic redox-active substances, preferably from the Group of benzotriazoles in liquid form at elevated temperature a solid (II) selected from the group of dishwashing detergents sprayed usual builder substances. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, daß gegebenenfalls noch weitere bei der Waschmittelgranulation übliche Schritte, wie etwa Coaten, Imprägnieren, Zumischen von Fließverbesserern, Trocknen, Extrudieren, u.ä. zur Einstellung der Pulvereigenschaften durchgeführt werden.A method according to claim 4, characterized in that if necessary other steps common in detergent granulation, such as Coating, impregnation, admixing of flow improvers, drying, Extruding, etc. carried out to adjust the powder properties will. Verfahren nach Ansprüchen 4 und 5, dadurch gekennzeichnet, daß ein granulares Vorgemisch aus einem Feststoff (II) in einem Mischer vorgelegt wird und danach der Stoff (I) in flüssiger Form aufsprüht wird und das so erhaltene Granulat gegebenenfalls noch getrocknet und durch Zumischen von Fließverbessererern aus der Gruppe der Feststoffe (II) konfektioniert wird.Method according to claims 4 and 5, characterized in that a granular premix from a solid (II) placed in a mixer and then the substance (I) is sprayed on in liquid form and so Granules obtained are optionally dried and mixed made up of flow improvers from the group of solids (II) becomes. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der Stoff (I) vor dem Aufsprühen in Form einer Lösung in einem organischen Lösungsmittel (III), bevorzugt in polaren organischen Flüssigkeiten, besonders bevorzugt in Konzentrationen von mehr als 30 Gew.-% vorliegt.A method according to claim 6, characterized in that the substance (I) before spraying in the form of a solution in an organic solvent (III), preferably in polar organic liquids, particularly preferably in Concentrations of more than 30 wt .-% is present. Verfahren nach den Ansprüchen 6 und 7, dadurch gekennzeichnet, daß das Lösungsmittel (III) ausgewählt ist aus der Gruppe bestehend aus Methanol, Ethanol, Isopropanol, Ethylenglykol, Propylenglykol, Aceton, Methylethylketon und Polyethylenglycolen.Process according to claims 6 and 7, characterized in that the Solvent (III) is selected from the group consisting of methanol, Ethanol, isopropanol, ethylene glycol, propylene glycol, acetone, methyl ethyl ketone and polyethylene glycols. Verfahren nach den Ansprüchen 7 und 8, dadurch gekennzeichnet, daß das Lösungsmittel (III) ausgewählt ist aus der Gruppe der Tenside, bevorzugt der nichtionischen Tenside, ganz besonders bevorzugt der Alkylpolyglycoside, Fettalkoholetherethoxylate, bzw-propoxylate und deren Estern Method according to claims 7 and 8, characterized in that the Solvent (III) is selected from the group of surfactants, preferably the nonionic surfactants, very particularly preferably the alkyl polyglycosides, Fatty alcohol ether ethoxylates or propoxylates and their esters Verfahren nach den Ansprüchen 6 bis 9, dadurch gekennzeichnet, daß die Komponente in einem nachfolgenden Schritt mit einer Substanz oder mehreren Substanzen, die ausgewählt sind aus der Gruppe der Kohlenwasserstoffe mit einem Schmelzpunkt zwischen 30 bis 120°C, bevorzugt zwischen 40-80°C, besprüht wird.Method according to claims 6 to 9, characterized in that the Component in a subsequent step with a substance or several substances that are selected from the group of hydrocarbons with a melting point between 30 to 120 ° C, preferred between 40-80 ° C, is sprayed. Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß die Komponente abschließend durch Zumischen von Fließverbessererern aus der Gruppe der Feststoffe (II) konfektioniert wird und gegebenenfalls noch weitere bei der Waschmittelgranulation übliche Schritte, wie etwa Coaten, Imprägnieren, Zumischen von Fließverbesserern, Trocknen, Extrudieren, u.ä. zur Einstellung der Pulvereigenschaften durchgeführt werden.A method according to claim 10, characterized in that the component finally by adding flow improvers from the group of Solids (II) is made up and, if necessary, more at Detergent granulation usual steps, such as coating, impregnation, Admixing flow improvers, drying, extruding, etc. to Adjustment of the powder properties can be carried out. Geschirrspülmittel dadurch gekennzeichnet, daß es eine granulare Komponente gemäß Ansprüchen 1 bis 3 und/oder eine Komponente erhältlich nach einem der Verfahren der Ansprüche 4-11, bevorzugt in Mengen zwischen 1 und 40 Gew.-% bezogen auf die gesamte Mischung enthält.Dishwashing detergent characterized in that it is a granular component according to claims 1 to 3 and / or a component obtainable after one of the methods of claims 4-11, preferably in amounts between 1 and contains 40 wt .-% based on the total mixture. Geschirrspülmittel nach Anspruch 12, dadurch gekennzeichnet, daß auch weitere in Geschirrspülmitteln übliche Komponenten, wie Buildersubstanzen, Bleichmittel, Tenside, Korrosionsschutzmittel, Polymere, andere Silberschutzmittel, Entschäumer, Parfum- und Duftstoffe und andere enthalten sind.Dishwashing detergent according to claim 12, characterized in that also further components customary in dishwashing detergents, such as builder substances, Bleaching agents, surfactants, corrosion protection agents, polymers, other silver protection agents, Contains defoamers, perfumes and fragrances and others are.
EP97113068A 1996-08-07 1997-07-30 Granular components for automatic dishwashing compositions, and method of making them Expired - Lifetime EP0826768B1 (en)

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DE19631787A DE19631787C2 (en) 1996-08-07 1996-08-07 Granular component containing benzotriazole for use in machine dishwashing detergents (MGSM) and process for its production

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WO1999063044A1 (en) * 1998-06-03 1999-12-09 Henkel Kommanditgesellschaft Auf Aktien Production of granulates containing alkylpolyglycoside
WO2001072949A1 (en) * 2000-03-28 2001-10-04 Henkel Kommanditgesellschaft Auf Aktien Particle-shaped dishwashing machine detergents having a clear rinsing effect
DE10313455A1 (en) * 2003-03-25 2004-10-14 Henkel Kgaa Detergents and cleaning agents

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DE19758262A1 (en) 1997-12-31 1999-07-08 Henkel Kgaa Granular component containing alkylaminotriazole for use in machine dishwashing detergents (MGSM) and process for its production
DE10049657C2 (en) * 2000-10-07 2003-02-27 Henkel Kgaa Machine dishwashing method and machine dishwashing detergent with improved corrosion protection
DE102011077098A1 (en) * 2011-06-07 2012-12-13 Henkel Kgaa Silver-protecting dishwashing detergent
DE102018212206A1 (en) 2018-07-23 2020-01-23 Henkel Ag & Co. Kgaa Detergent with silver protection

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EP0682105A2 (en) * 1994-04-13 1995-11-15 The Procter & Gamble Company Bleaching compositions
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EP0032236A1 (en) * 1980-01-12 1981-07-22 Henkel Kommanditgesellschaft auf Aktien Dishwashing detergent
WO1993004153A1 (en) * 1991-08-13 1993-03-04 The Procter & Gamble Company Process for making granular automatic dishwashing detergent
WO1994026860A1 (en) * 1993-05-08 1994-11-24 Henkel Kommanditgesellschaft Auf Aktien Silver-corrosion protection agent (ii)
WO1995001416A1 (en) * 1993-07-01 1995-01-12 The Procter & Gamble Company Machine dishwashing composition containing oxygen bleach and paraffin oil and benzotriazole compound silver tarnishing inhibitors
EP0634478A1 (en) * 1993-07-16 1995-01-18 The Procter & Gamble Company Machine dishwashing detergent compositions
WO1995010588A1 (en) * 1993-10-14 1995-04-20 Unilever N.V. Detergent compositions containing silver anti-tarnishing agents
EP0682105A2 (en) * 1994-04-13 1995-11-15 The Procter & Gamble Company Bleaching compositions
EP0690122A2 (en) * 1994-06-30 1996-01-03 The Procter & Gamble Company Detergent compositions

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Publication number Priority date Publication date Assignee Title
WO1999063044A1 (en) * 1998-06-03 1999-12-09 Henkel Kommanditgesellschaft Auf Aktien Production of granulates containing alkylpolyglycoside
WO2001072949A1 (en) * 2000-03-28 2001-10-04 Henkel Kommanditgesellschaft Auf Aktien Particle-shaped dishwashing machine detergents having a clear rinsing effect
DE10313455A1 (en) * 2003-03-25 2004-10-14 Henkel Kgaa Detergents and cleaning agents

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EP0826768B1 (en) 2001-10-24
ES2166032T3 (en) 2002-04-01
DE19631787C2 (en) 2000-06-29
ATE207525T1 (en) 2001-11-15
DE59705054D1 (en) 2001-11-29
DE19631787A1 (en) 1998-02-12

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