EP1138754A1 - Acetonitril-Derivate als Bleichaktivatoren in Reinigungsmitteln - Google Patents

Acetonitril-Derivate als Bleichaktivatoren in Reinigungsmitteln Download PDF

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Publication number
EP1138754A1
EP1138754A1 EP01115441A EP01115441A EP1138754A1 EP 1138754 A1 EP1138754 A1 EP 1138754A1 EP 01115441 A EP01115441 A EP 01115441A EP 01115441 A EP01115441 A EP 01115441A EP 1138754 A1 EP1138754 A1 EP 1138754A1
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EP
European Patent Office
Prior art keywords
weight
formula
bleach
compound
compounds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP01115441A
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German (de)
English (en)
French (fr)
Inventor
Christian Dr. Nitsch
Rainer Dr. Jeschke
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3907—Organic compounds
    • C11D3/3917—Nitrogen-containing compounds
    • C11D3/3925—Nitriles; Isocyanates or quarternary ammonium nitriles
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3907—Organic compounds
    • C11D3/3917—Nitrogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts

Definitions

  • the present invention relates to the use of certain acetonitrile derivatives as Activators for in particular inorganic peroxygen compounds for bleaching colored stains on dishes and detergents for dishes, the contain such activators.
  • Inorganic peroxygen compounds especially hydrogen peroxide and solid peroxygen compounds, which dissolve in water to release hydrogen peroxide, such as sodium perborate and sodium carbonate perhydrate, have long been used as oxidizing agents for disinfection and bleaching purposes.
  • the oxidizing effect of these substances in dilute solutions depends strongly on the temperature; For example, with H 2 O 2 or perborate in alkaline bleaching liquors, sufficiently quick bleaching of soiled textiles can only be achieved at temperatures above about 80 ° C.
  • the oxidation effect of the inorganic peroxygen compounds can be improved by adding so-called bleach activators, for which numerous suggestions, especially from the substance classes of the N- or O-acyl compounds, for example multiply acylated alkylenediamines, especially tetraacetylethylenediamine, acylated glycolurils, especially tetraacetylglycoluril, N- acylated hydantoins, hydrazides, triazoles, Hydrotriazine, urazoles, diketopiperazines, sulfuryl amides and cyanurates, also carboxylic anhydrides, especially phthalic anhydride, Carbonklareester, especially sodium nonanoyloxybenzenesulfonate, sodium isononanoyloxybenzenesulfonate and acylated sugar derivatives, such as pentaacetylglucose, are known in the literature.
  • bleach activators for which numerous suggestions, especially from the substance
  • Another one especially for cleaning agents for automatic dishwashing Problem is the need to use corrosion inhibitors for silverware in such agents to incorporate, especially if the agents are the bleaching or Oxygen-based oxidizers included.
  • Silver can when cleaning with sulfur-containing substances that are dissolved or dispersed in the rinse water are reacting, because when cleaning dishes in household dishwashers are leftovers and thus among other things mustard, peas, egg and others sulfur-containing compounds such as mercaptoamino acids introduced into the washing liquor.
  • the much higher temperatures during machine washing and the longer ones Contact times with the sulfur-containing food residues favor compared to manual purging the tarnishing of silver. Due to the intensive cleaning process in the silver surface is also completely degreased in the dishwasher and thereby more sensitive to chemical influences.
  • tarnishing silver becomes particularly acute if it is an alternative to the sulfur-containing substances oxidatively "defusing" active chlorine compounds active oxygen compounds, such as sodium perborate or sodium percarbonate are used to remove bleachable soiling, such as for example tea stains / tea deposits, coffee residues, dyes from vegetables, lipstick residues and the like serve.
  • active chlorine compounds such as sodium perborate or sodium percarbonate are used to remove bleachable soiling, such as for example tea stains / tea deposits, coffee residues, dyes from vegetables, lipstick residues and the like serve.
  • Such active oxygen bleaching agents usually together with bleach activators, especially in modern low-alkaline machine dishwashing detergents of the new generation of detergents used.
  • These means generally consist of the following Functional components: builder component (complexing agent / dispersant), alkali carrier, Bleaching system (combination of bleach and bleach activator), enzyme and Surfactant.
  • builder component complexing agent / dispersant
  • alkali carrier alkali carrier
  • Bleaching system combination of bleach and bleach activator
  • enzyme and Surfactant Surfactant.
  • the present invention has in particular the improvement of the oxidation and bleaching effect inorganic peroxygen compounds at low temperatures below 80 ° C, especially in the temperature range of approx. 15 ° C to 55 ° C, for Aim.
  • the invention relates to the use of compounds of the general formula I, R 1 R 2 R 3 N + CH 2 CN X - in which R 1 , R 2 and R 3 independently of one another are an alkyl, alkenyl or aryl group with 1 to 18 C atoms and X is a charge-balancing anion, as activators for in particular inorganic peroxygen compounds in aqueous cleaning solutions for dishes.
  • R 1 is an alkyl group with 1 to 3 C atoms, in particular a methyl group.
  • the anions X - include in particular the halides such as chloride, fluoride, iodide and bromide, nitrate, hydroxide, hexafluorophosphate, metho- and ethosulfate, chlorate, perchlorate, and the anions of carboxylic acids such as formate, acetate, benzoate or citrate.
  • halides such as chloride, fluoride, iodide and bromide, nitrate, hydroxide, hexafluorophosphate, metho- and ethosulfate, chlorate, perchlorate, and the anions of carboxylic acids such as formate, acetate, benzoate or citrate.
  • Is methosulfate - preferred is the use of compounds according to formula I in which X is.
  • An acetonitrile derivative according to formula I is preferably used in cleaning solutions for Dishes used for bleaching colored stains. It is under the The concept of bleaching means both the bleaching of what is on the surface of the dishes Dirt, especially tea, as well as bleaching in the dishwashing liquor understood dirt detached from the surface.
  • the invention relates to cleaning agents for dishes and among them preferably those for use in mechanical cleaning processes, the one above contain described compound according to formula I, and a method for purification of dishes using such a connection.
  • the use according to the invention as a bleach activator essentially consists in Presence of a dish surface contaminated with colored stains to create, among which a peroxidic oxidizer and the bleach activating Acetonitrile derivative can react with each other, with the aim of being stronger to obtain oxidizing secondary products.
  • a peroxidic oxidizer and the bleach activating Acetonitrile derivative can react with each other, with the aim of being stronger to obtain oxidizing secondary products.
  • Such conditions are in particular then when both reactants meet in aqueous solution. This can by adding the peroxygen compound and the acetonitrile derivative separately a solution containing detergent if necessary.
  • the method according to the invention is carried out using an inventive method Dishwashing detergent which activates the bleach Acetonitrile derivative and optionally an oxidizing agent containing peroxygen, preferably selected from the group comprising organic peracids, hydrogen peroxide, Perborate and percarbonate and their mixtures.
  • the peroxygen compound can also be separately, in bulk or as a preferably aqueous solution or suspension, are added to the solution if a peroxide free Detergent is used.
  • the conditions can be varied widely depending on the intended use. So come in addition to purely aqueous solutions, also mixtures of water and suitable organic Solvents as a reaction medium in question.
  • the quantities of peroxygen compounds used are generally chosen so that in the solutions between 10 ppm and 10% active oxygen, preferably between 50 ppm and 5,000 ppm Active oxygen is present.
  • the amount of bleach activating used Acetonitrile derivative depends on the application. Depending on the desired level of activation become 0.00001 mol to 0.25 mol, preferably 0.001 mol to 0.02 mol Activator used per mole of peroxygen compound, but can be used in special cases these limits are also exceeded or undershot.
  • Another object of the invention is a cleaning agent for dishes, which 1% by weight to 10% by weight, in particular 3% by weight to 6% by weight, of an acetonitrile derivative according to formula I in addition to conventional ingredients compatible with the compound contains.
  • the bleach activator can be adsorbed onto carriers in a manner known in principle and / or be embedded in coating substances.
  • the cleaning agents according to the invention which are in powder or tablet form Solids, homogeneous solutions or suspensions can also be present Bleach activator used according to the invention in principle all known and in such Contain common ingredients.
  • the agents according to the invention can in particular builder substances, surface-active surfactants, peroxygen compounds, water-miscible organic solvents, enzymes, sequestering agents, electrolytes, pH regulators and other auxiliaries, such as silver corrosion inhibitors, foam regulators, contain additional bleach-boosting active ingredients as well as colors and fragrances.
  • a cleaning agent according to the invention can also have an abrasive effect Components, in particular from the group comprising quartz flours, wood flours, Plastic flours, chalks and micro glass balls and their mixtures.
  • Abrasives are preferably not present in the cleaning agents according to the invention 20 wt .-%, in particular from 5 wt .-% to 15 wt .-%, contain.
  • Another object of the invention is a means for machine cleaning Tableware containing 15% by weight to 70% by weight, in particular 20% by weight to 60% by weight water-soluble builder component, 5% by weight to 25% by weight, in particular 8% by weight up to 17% by weight of bleaching agent based on oxygen, in each case based on the total agent, which a bleach activating acetonitrile derivative according to formula I, in particular in Amounts from 3 wt .-% to 6 wt .-%, contains.
  • Such means is preferred lower alkaline, i.e. its 1% by weight solution has a pH of 8 to 11.5, especially from 9 to 11.
  • cleaning agents all come in agents for the mechanical cleaning of Dishes commonly used builder substances in question, for example Alkali phosphates, in the form of their alkaline neutral or acidic sodium or Potassium salts can be present.
  • Alkali phosphates in the form of their alkaline neutral or acidic sodium or Potassium salts can be present.
  • examples include trisodium phosphate, tetrasodium diphosphate, Disodium dihydrogen diphosphate, pentasodium triphosphate, so-called Sodium hexametaphosphate, oligomeric trisodium phosphate with Degrees of oligomerization in the range from 5 to 1000, in particular 5 to 50, and mixtures from sodium and potassium salts.
  • water-soluble builder components are, for example, organic polymers native or synthetic origin, especially polycarboxylates, especially in Hard water regions act as co-builders.
  • organic polymers native or synthetic origin especially polycarboxylates, especially in Hard water regions act as co-builders.
  • polycarboxylates especially in Hard water regions act as co-builders.
  • Commercial products are, for example, Sokalan® CP 5, CP 10 and PA 30 from BASF.
  • the polymers that can be used as co-builders native origin include, for example, oxidized starches, such as from the International patent application WO 94/05762 known, and polyamino acids such as polyglutamic acid or polyaspartic acid.
  • Other possible builder components are naturally occurring hydroxycarboxylic acids such as mono-, dihydroxysuccinic acid, ⁇ -hydroxypropionic acid and gluconic acid.
  • the preferred Builder components include the salts of citric acid, especially sodium citrate.
  • Anhydrous trisodium citrate and preferably trisodium citrate dihydrate are used as sodium citrate into consideration. Trisodium citrate dihydrate can be fine or coarse crystalline Powder can be used.
  • the pH value set can also be at least partially those of the co-builder salts mentioned corresponding acids are present.
  • the main bleaches used are oxygen-based or alkali perborate mono tetrahydrate and / or alkali percarbonate and alkali persulfates, persilicates and percitrates, with sodium being the preferred alkali metal.
  • the use of sodium percarbonate has been found particularly in detergents for dishes Advantages, since it has a particularly favorable effect on the corrosion behavior on glasses.
  • the oxygen-based bleach is therefore preferably an alkali percarbonate, especially sodium percarbonate.
  • peroxycarboxylic acids for example dodecanediperic acid or phthalimidopercarboxylic acids, which may optionally be substituted on the aromatic, are included.
  • bleach stabilizers such as for example of phosphonates, borates or metaborates and metasilicates and magnesium salts such as magnesium sulfate may be useful.
  • bleach activating acetonitrile derivatives according to formula I above known conventional bleach activators, that is, compounds that under Perhydrolysis conditions aliphatic peroxocarboxylic acids with preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or optionally substituted Perbenzoic acid result, are used.
  • aliphatic peroxocarboxylic acids with preferably 1 to 10 carbon atoms, in particular 2 to 4 carbon atoms, and / or optionally substituted Perbenzoic acid result, are used.
  • Multi-acylated alkylenediamines are preferred, in particular Tetraacetylethylenediamine (TAED), acylated triazine derivatives, especially 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), acylated glycolurils, in particular Tetraacetylglycoluril (TAGU), N-acylimides, especially N-nonanoylsuccinimide (NOSI), carboxylic anhydrides, especially phthalic anhydride, acylated polyvalent Alcohols, especially triacetin, ethylene glycol diacetate, 2,5-diacetoxy-2,5-dihydrofuran and those from German patent applications DE 196 16 693 and DE 196 16 767 known enol esters and acetylated sorbitol and mannitol or their in mixtures described in European patent application EP 0 525 239 (SORMAN), acy
  • the sulfonimines and / or bleach-enhancing transition metal salts or transition metal complexes known from European patents EP 0 446 982 and EP 0 453 003 may also be present as so-called bleaching catalysts.
  • the transition metal compounds in question include, in particular, the manganese, iron, cobalt, ruthenium or molybdenum-salt complexes known from German patent application DE 195 29 905 and their N-analog compounds known from German patent application DE 196 20 267, which consist of the German patent application DE 195 36 082 known manganese, iron, cobalt, ruthenium or molybdenum carbonyl complexes, the manganese, iron, cobalt, ruthenium, molybdenum, titanium described in German patent application DE 196 05 688 -, Vanadium and copper complexes with nitrogen-containing tripod ligands, the cobalt, iron, copper and ruthenium amine complexes known from German patent application DE 196 20 411, the manganese described in German patent application DE 44 16 438, Copper and cobalt complexes, the cobalt complexes described in European patent application EP 0 272 030, the manganese complexes known from European patent application EP
  • bleach activators and transition metal bleach catalysts are known, for example, from German patent application DE 196 13 103 and international patent application WO 95/27775.
  • Bleach-enhancing transition metal salts and / or complexes in particular with the central atoms Mn, Fe, Co, Cu, Mo, V, Ti and / or Ru, are used in customary amounts, preferably up to 1% by weight, in particular 0.0025% by weight .-% to 0.5 wt .-% and particularly preferably from 0.01 wt .-% to 0.1 wt .-%, each based on the total agent used.
  • the particularly preferred bleach catalyst complexes include cobalt, iron, copper and ruthenium-amine complexes, for example [Co (NH 3 ) 5 Cl] Cl 2 and / or [Co (NH 3 ) 5 NO 2 ] Cl 2 .
  • the machine dishwashing detergents according to the invention preferably contain the customary alkali carriers such as, for example, alkali silicates, alkali carbonates and / or alkali hydrogen carbonates.
  • Alkali silicates can be used in amounts of up to 40% by weight, based on the total agent. However, the use of the highly alkaline metasilicates as alkali carriers is preferably avoided entirely.
  • the alkali carrier system preferably used in the agents according to the invention is a mixture of carbonate and hydrogen carbonate, preferably sodium carbonate and hydrogen carbonate, which is contained in an amount of up to 50% by weight, preferably 5% by weight to 40% by weight .
  • the ratio of carbonate and bicarbonate used varies depending on which pH is ultimately desired.
  • agents according to the invention are 20% by weight to 60% by weight of water-soluble organic builder, in particular alkali citrate, 3% by weight to Contain 20 wt .-% alkali carbonate and 5 wt .-% to 40 wt .-% alkali disilicate.
  • anionic, nonionic and / or amphoteric surfactants in particular low-foaming nonionic surfactants, can also be added to the agents according to the invention, which serve to improve the detachment of greasy soils, as wetting agents and, if appropriate, as granulating aids in the preparation of the cleaning agents.
  • Their amount can be up to 20% by weight, in particular up to 10% by weight, and is preferably in the range from 0.5% by weight to 5% by weight.
  • Extremely low-foaming compounds are usually used in particular in cleaning agents for use in automatic dishwashing processes.
  • C 12 -C 18 alkyl polyethylene glycol polypropylene glycol ethers each containing up to 8 moles of ethylene oxide and propylene oxide units in the molecule.
  • you can also use other known low-foaming nonionic surfactants such as C 12 -C 18 alkyl polyethylene glycol polybutylene glycol ether, each with up to 8 moles of ethylene oxide and butylene oxide units in the molecule, end-capped alkyl polyalkylene glycol mixed ethers and the foaming but ecologically attractive C 8 -C 14- alkyl polyglucosides with a degree of polymerization of about 1 to 4 (e.g.
  • surfactants from the family of glucamides such as, for example, alkyl-N-methyl-glucamides, in which the alkyl part preferably originates from a fatty alcohol with the C chain length C 6 -C 14 . It is partially advantageous if the surfactants described are used as mixtures, for example the combination of alkyl polyglycoside with fatty alcohol ethoxylates or glucamide with alkyl polyglycosides.
  • cleaning agents according to the invention can be used for cleaning silver corrosion inhibitors are used in dishes.
  • Preferred silver corrosion inhibitor are organic sulfides such as cystine and cysteine, divalent or trivalent Phenols, optionally alkyl-, aminoalkyl- or aryl-substituted triazoles such as Benzotriazole, isocyanuric acid, manganese, cobalt, titanium, zirconium, hafnium, vanadium or cerium salts and / or complexes in which the metals mentioned depend on the metal are in one of the oxidation states II, III, IV, V or VI.
  • the content of silver corrosion inhibitors in agents according to the invention is preferably in the range of 0.01% by weight to 1.5% by weight, in particular from 0.1% by weight to 0.5% by weight.
  • the manganese (III) - or known from international patent application WO 94/19445 Manganese (IV) complexes which in international patent application WO 94/07981 as Silver protection agent disclosed cysteine, which in the German patent application DE 195 18 693 as having a silver corrosion inhibiting effect alone or in particular in Combination with isocyanuric acid described cystine, and / or that in the German patent applications Titanium, described in DE 43 25 922 and DE 43 15 397, Zirconium, hafnium, vanadium, cobalt or cerium salts and / or complexes in which the metals are in one of the oxidation states II, III, IV, V or VI, and mentioned there Manganese (II) salts or complexes for preventing silver corrosion in the invention Funds are used.
  • the agents according to the invention can contain enzymes such as proteases, amylases, Contain pullulanases, cutinases and lipases, for example proteases such as BLAP®, Optimase®, Opticlean®, Maxacal®, Maxapem®, Esperase®, Savinase®, Purafect® OxP and / or Durazym®, amylases such as Termamyl®, Amylase-LT®, Maxamyl®, Duramyl® and / or Purafect® OxAm, lipases such as Lipolase®, Lipomax®, Lumafast® and / or Lipozym®.
  • proteases such as BLAP®, Optimase®, Opticlean®, Maxacal®, Maxapem®, Esperase®, Savinase®, Purafect® OxP and / or Durazym®
  • amylases such as Termamyl®, Amylase-LT®, Max
  • the optionally used enzymes can, as for example in the international patent applications WO 92/11347 or WO 94/23005
  • Carriers can be adsorbed and / or embedded in coating substances to protect them against premature Protect inactivation. They are in the cleaning agents according to the invention preferably in amounts up to 2% by weight, in particular from 0.1% by weight to 1.5% by weight, contain, particularly preferably enzymes stabilized against oxidative degradation, as for example from international patent applications WO 94/02597, WO 94/02618, WO 94/18314, WO 94/23053 or WO 95/07350, known, are used become.
  • the cleaning agents foam too much during use, they can still preferably up to 6% by weight, in particular about 0.5% by weight to 4% by weight of one foam-suppressing compound, preferably from the group of silicone oils, mixtures made of silicone oil and hydrophobicized silica, paraffins, paraffin-alcohol combinations, hydrophobicized silica, the bis fatty acid amides, and others other known commercially available defoamers can be added.
  • one foam-suppressing compound preferably from the group of silicone oils, mixtures made of silicone oil and hydrophobicized silica, paraffins, paraffin-alcohol combinations, hydrophobicized silica, the bis fatty acid amides, and others other known commercially available defoamers can be added.
  • foam-suppressing compound preferably from the group of silicone oils, mixtures made of silicone oil and hydrophobicized silica, paraffins, paraffin-alcohol combinations, hydrophobicized silica, the bis fatty acid amides, and
  • usable organic solvents include alcohols with 1 to 4 carbon atoms, especially methanol, ethanol, isopropanol and tert-butanol, Diols with 2 to 4 carbon atoms, in particular ethylene glycol and propylene glycol, and their mixtures and the ethers derived from the compound classes mentioned.
  • Such water-miscible solvents are in the cleaning agents according to the invention preferably not more than 20% by weight, in particular from 1% by weight to 15% by weight, available.
  • the agents according to the invention cannot be systemic and environmentally compatible acids, especially citric acid, acetic acid, tartaric acid, malic acid, Lactic acid, glycolic acid, succinic acid, glutaric acid and / or adipic acid, however also mineral acids, especially sulfuric acid or alkali hydrogen sulfates, or Contain bases, especially ammonium or alkali hydroxides.
  • Such pH regulators are preferably not more than 10% by weight in the agents according to the invention, in particular from 0.5% by weight to 6% by weight.
  • the preparation of the solid compositions according to the invention presents no difficulties and can be carried out in a manner known in principle, for example by spray drying or granulation, take place, the peroxygen compound and bleaching catalyst optionally being separated later be added.
  • Cleaning agents according to the invention in the form of aqueous or other conventional Solutions containing solvents are particularly advantageous by simple Mixing the ingredients in bulk or as a solution in an automatic Mixers can be made.
  • the agents according to the invention are preferably powdered, granular or tablet-shaped preparations in a known manner, for example by Mixing, granulating, roller compacting and / or by spray drying the thermally resilient components and admixing the more sensitive components, which include in particular enzymes, bleaching agents and the bleach activator, can be produced.
  • the procedure is preferably such that all constituents are mixed with one another in a mixer and the mixture by means of conventional tablet presses, for example eccentric presses or rotary presses, with pressures in the range from 200 10 5 Pa to 1 500 ⁇ 10 5 Pa pressed.
  • a tablet produced in this way has a weight of 15 g to 40 g, in particular 20 g to 30 g, with a diameter of 35 mm to 40 mm.
  • agents according to the invention in the form of non-dusting, storage-stable free-flowing powders and / or granules with high bulk densities in the range of 800 up to 1000 g / l can be achieved in that the Builder components with at least a portion of liquid mixture components mixed by increasing the bulk density of this premix and subsequently - if desired after intermediate drying - the other components of the agent, including the bleach catalyst, combined with the premix obtained in this way.
  • Agents for cleaning dishes according to the invention can be used both in household dishwashers as used in commercial dishwashers. The addition is done by hand or by means of suitable dosing devices.
  • the application concentrations in the cleaning liquor are usually about 1 to 8 g / l, preferably 2 to 5 g / l.
  • a machine wash program is generally followed by some on the Cleaning cycle following intermediate rinse cycles with clear water and one Rinse aid supplemented with a customary rinse aid and ended. After this Drying is completely clean and in when using agents according to the invention hygienically perfect dishes.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (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)
  • Detergent Compositions (AREA)
EP01115441A 1996-11-29 1997-11-21 Acetonitril-Derivate als Bleichaktivatoren in Reinigungsmitteln Ceased EP1138754A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19649375 1996-11-29
DE19649375A DE19649375A1 (de) 1996-11-29 1996-11-29 Acetonitril-Derivate als Bleichaktivatoren in Reinigungsmitteln
EP97951944A EP0944707B2 (de) 1996-11-29 1997-11-21 Acetonitril-derivate als bleichaktivatoren in reinigungsmitteln

Related Parent Applications (1)

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EP97951944A Division EP0944707B2 (de) 1996-11-29 1997-11-21 Acetonitril-derivate als bleichaktivatoren in reinigungsmitteln

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EP1138754A1 true EP1138754A1 (de) 2001-10-04

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EP97951944A Expired - Lifetime EP0944707B2 (de) 1996-11-29 1997-11-21 Acetonitril-derivate als bleichaktivatoren in reinigungsmitteln
EP01115441A Ceased EP1138754A1 (de) 1996-11-29 1997-11-21 Acetonitril-Derivate als Bleichaktivatoren in Reinigungsmitteln

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EP97951944A Expired - Lifetime EP0944707B2 (de) 1996-11-29 1997-11-21 Acetonitril-derivate als bleichaktivatoren in reinigungsmitteln

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US (1) US6225274B1 (enExample)
EP (2) EP0944707B2 (enExample)
JP (1) JP4097295B2 (enExample)
AT (1) ATE213013T1 (enExample)
DE (2) DE19649375A1 (enExample)
ES (1) ES2172825T5 (enExample)
WO (1) WO1998023719A2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2368586A (en) * 2000-08-04 2002-05-08 Reckitt Benckiser Nv Use of new bleach activators in dishwashing detergents

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6010994A (en) * 1995-06-07 2000-01-04 The Clorox Company Liquid compositions containing N-alkyl ammonium acetonitrile salts
US7282470B2 (en) * 2002-07-19 2007-10-16 Sandia Corporation Decontamination formulation with sorbent additive
US7390432B2 (en) 1998-06-30 2008-06-24 Sandia Corporation Enhanced formulations for neutralization of chemical, biological and industrial toxants
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