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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
• • 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
• • 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

Definitions

• the present invention relates to particulate bleach activators based on Acetonitriles, a process for their preparation, which consists in that Applies acetonitrile to silicon containing substrates and the Use of these products as bleach activators in solid washing and Detergents.
• Bleach activators are important components in compact detergents, Stain removal salts and machine dishwashing detergents. They already enable at 40 to 60 ° C a bleaching result comparable to that of hot laundry by using Hydrogen peroxide dispensers (mostly perborates, percarbonates, persilicates and Perphosphate) react with the release of peroxyacids.
• Hydrogen peroxide dispensers mostly perborates, percarbonates, persilicates and Perphosphate
• bleach activators Many substances are known in the art as bleach activators. Usually these are reactive organic compounds with a O-acyl or N-acyl group in alkaline solution together with a source form the corresponding peroxyacids for hydrogen peroxide.
• bleach activators are, for example, N, N, N ', N'-tetraacetylethylenediamine (TAED), glucose pentaacetate (GPA), xylose tetraacetate (TAX), sodium 4-benzoyloxybenzenesulfonate (SBOBS), Sodium trimethylhexanoyloxybenzenesulfonate (STHOBS), tetraacetylglucoluril (TAGU), tetraacetylcyanoic acid (TACA), di-N-acetyldimethylglyoxin (ADMG) and 1-phenyl-3-acetylhydantoin (PAH).
• TAED N, N, N ', N'-tetraacetylethylenediamine
• GPA glucose pentaacetate
• TAX xylose tetraacetate
• SBOBS sodium 4-benzoyloxybenzenesulfonate
• STHOBS Sodium trimethyl
• Ammonium nitriles are a special class of cationic bleach activators. Compounds of this type and their use as bleach activators in bleaching agents are described in EP-A-0 303 520, EP-A-0 464 880, EP-A-0 458 396, EP-A-0 897 974 and EP-A-0 790 244.
• ammonium nitriles as bleach activators in detergents and cleaning agents, the hygroscopicity of ammonium nitriles and the sensitivity to hydrolysis in the presence of alkaline detergent components and a correspondingly low storage stability are of great disadvantage.
• acetonitrile derivatives in particular cyclic acetonitrile compounds, for incorporation in solid washing and cleaning agents can be converted into a solid form by a carrier material with the largest possible surface, for example silica, in an aqueous Stirred acetonitrile solution or sprayed the aqueous solution onto the carrier and the resulting mixture is dried in a vacuum at elevated Subjected to temperatures.
• a carrier material with the largest possible surface, for example silica
• the granular or particulate Packaging of the acetonitrile derivatives in a very gentle, but also economically and ecologically very advantageous can that at room temperature saturated, aqueous solutions of acetonitrile derivatives on a silicon-containing carrier material, in particular silica, can be sprayed on without subsequent drying.
• the Active substance concentration of those produced by the process according to the invention Products is higher than conventional products, the hygroscopicity of the Acetonitrile derivatives assembled according to the invention are significantly lower.
• the invention relates to particulate bleach activators containing 15 to 60, preferably 20 to 50, in particular 35 to 45% by weight of an acetonitrile, 20 to 70, preferably 30 to 50, in particular 35 to 45% by weight of a silicon containing carrier material and 20 to 30, preferably 22 to 25 wt .-% Water.
• Suitable acetonitriles are compounds of the formula in which R 1 , R 2 , R 3 are identical or different and for linear or branched C 1 -C 24 alkyl groups, C 2 -C 24 alkenyl groups or for C 1 -C 4 alkoxy-C 1 -C 4 - Alkyl groups, substituted or unsubstituted benzyl, or in which R 1 and R 2 together with the nitrogen atom to which they are attached form a ring having 4 to 6 C atoms, which is substituted by C 1 -C 5 alkyl, C 1 - C 5 -alkoxy, C 1 - to C 5 -alkanoyl, phenyl, amino, ammonium, cyano, cyanamino, chlorine or bromine can be substituted and in addition to the nitrogen atom instead of carbon atoms one or two oxygen or nitrogen atoms, a group NR 6 or can contain a group R 3 -NR 6 , in which R 6 is hydrogen, C
• Cumene sulfonate and C 12/18 alcohol sulfate are particularly preferred as anions.
• Particularly preferred are compounds of the above formula in which R 1 , R 2 and R 3 are C 1 -C 4 alkyl and R 4 and R 5 are hydrogen and A is any cation, preferably chloride, methosulfate, cumene sulfonate, lauryl sulfate or fatty acid alkyl carboxylates or Mixtures of these cations.
• a saturated aqueous solution is prepared from these acetonitriles the silicon-containing carrier material is applied, preferably by Spray on, for example via a two-component nozzle.
• the temperature of this saturated aqueous solution is preferably 10 to 40, particularly preferred at 20 to 25 ° C.
• the material can then be mixed.
• the amount of saturated aqueous solution is measured so that the above mentioned limits for acetonitrile, carrier material and water are observed.
• the silicon-containing carrier materials used are preferably those whose inner surface is in the range from 10 m 2 / g to 500 m 2 / g, in particular 100 m 2 / g to 450 m 2 / g.
• silicates, silicas, silica gels and clays and their mixtures are suitable.
• the carrier material is preferably free of strongly alkaline components.
• Silicas produced by the thermal process (flame hydrolysis of SiCl 4 ) can be used as well as silicas produced by wet processes.
• Silica gels are colloidal silicas with elastic to firm consistency and a largely loose pore structure, which results in a high fluid absorption capacity.
• Clays are naturally occurring crystalline or amorphous silicates of aluminum, iron, magnesium, calcium, potassium and sodium, for example kaolin, talc, pyrophyllite, attapulgite, sepiolite, montmorillionite and bauxite.
• the use of aluminum silicate as a carrier material or as a component of a carrier material mixture is also possible.
• the carrier material preferably has particle sizes in the range from 10 ⁇ m to 1.5 mm.
• the Granulate acetonitrile-loaded carrier material can also do that carrier material loaded with the acetonitrile with or without the addition of a binder compressed, compacted and gentle up to granulate sizes from 200 to 2000 ⁇ m be crushed.
• a build-up granulation in the mixer for example in the Ploughshare mixer, ring layer mixer or intensive mixer with or without additive a binder, for example a water-based binder such as tylose (Carboxymethyl cellulose) or an anhydrous binding system, such as Fettalkoholpolyglykolether.
• a binder for example a water-based binder such as tylose (Carboxymethyl cellulose) or an anhydrous binding system, such as Fettalkoholpolyglykolether.
• this can be done by spraying on a saturated Solution of the acetonitrile on a carrier material obtained with particulate product or without the addition of a binder of a form granulation by means of dies in the extruder, but also in ring roller presses, roller mills, possibly with downstream rounder.
• the particulate bleach activators obtained according to the invention are directly for Suitable for use in detergents and cleaning agents.
• tissue and To avoid color damage it is advantageous to use the particulate Bleach activators, however, according to methods known per se with a coating envelope to provide.
• the granules are processed in a manner known per se an additional step coated with a film-forming substance, whereby the Product properties can be significantly influenced.
• All film-forming substances such as waxes, are suitable as coating material.
• anionic and cationic polymers e.g. B. polyacrylic acids.
• Coating substances with a melting point of 30 to 100 ° C. are preferred used. Examples of this and a method of application are described in EP-A-0 835 926.
• the coating materials are applied in the Usually by spraying the melted or dissolved in a solvent Coating materials.
• the coating material can be in amounts from 0 to 30, preferably 5 to 20 wt .-%, based on the total weight on the granulate core according to the invention are applied.
• the particulate bleach activators according to the invention contain other suitable additives, such as anionic and nonionic Surfactants which lead to a faster dissolution of the granules according to the invention contribute.
• Preferred anionic surfactants are alkali salts, ammonium salts, Amine salts and salts of amino alcohols from the following compounds: Alkyl sulfates, alkyl ether sulfates, alkyl amide sulfates and ether sulfates, Alkylaryl polyether sulfates, monoglyceride sulfates, alkyl sulfonates, alkyl amide sulfonates, Alkyl aryl sulfonates, ⁇ -olefin sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, Alkyl amide sulfosuccinates, alkyl sulfo acetates,
• nonionic surfactants are polyethoxylated, polypropoxylated or polyglycerolated ethers of fatty alcohols, polyethoxylated, polypropoxylated and polyglycerolated fatty acid esters, polyethoxylated esters of fatty acids and of Sorbitol, polyethoxylated or polyglycerolated fatty amides are preferred.
• suitable additives are substances that adjust the pH during storage and Affect application. These include organic carboxylic acids or their salts, such as citric acid in anhydrous or hydrated form, glycolic acid, Succinic acid, maleic acid or lactic acid.
• organic carboxylic acids or their salts such as citric acid in anhydrous or hydrated form, glycolic acid, Succinic acid, maleic acid or lactic acid.
• additions are possible that influence the bleaching capacity, such as complexing agents and Transition metal complexes, e.g. Contains iron, cobalt and manganese Metal complexes as described in EP-A-0 458 397 and EP-A-0 458 398.
• the amount of the additive depends in particular on its type acidifying additives and organic catalysts to increase the performance of the Peracid in amounts of 0 to 20% by weight, in particular in amounts of 1 to 10% by weight, based on the total weight, was added, but metal complexes in concentrations in the ppm range.
• the particulate bleach activators according to the invention can be incorporated into tableted detergent and cleaning agent formulations by customary methods.
• the procedure is preferably such that all the constituents are mixed with one another in a mixer and the mixture is pressed by means of conventional tablet presses, for example eccentric presses or rotary presses, with pressures in the range from 200 ⁇ 10 5 Pa to 1500 ⁇ 10 5 Pa , In this way, break-resistant tablets are obtained with ease, which nevertheless dissolve sufficiently quickly under conditions of use, with bending strengths of over 150 N.
• a tablet produced in this way preferably 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.
• the acetonitrile derivatives made up according to the invention can be in Heavy duty detergents, stain removal salts, machine dishwashing detergents, powdered All-purpose cleaners and denture cleaners are used.
• the detergents and cleaning agents containing the above-described particulate Assembled acetonitrile derivatives are used in combination with a Source of hydrogen peroxide, for example perborate monohydrate, perborate tetrahydrate, Percarbonate and hydrogen peroxide adducts with urea or Amine oxides are used and can contain all ingredients common in these agents, such as Builder substances, surface-active surfactants, enzymes, sequestering agents, Electrolytes, pH regulators, foam regulators, abrasives Brighteners, silver corrosion inhibitors, preservatives, perfumes and fragrances contain.
• a Source of hydrogen peroxide for example perborate monohydrate, perborate tetrahydrate, Percarbonate and hydrogen peroxide adducts with urea or Amine oxides are used and can contain all ingredients common in these agents, such as Builder substances, surface-active surfactants, enzymes, sequestering agents, Electrolytes, pH regulators, foam regulators, abrasives Brighten
• Suitable builders are both phosphate-free builder systems as well systems containing phosphates, for example alkali metal phosphates, in the form of their alkaline neutral or acidic sodium or potassium salts may be present, such as Trisodium phosphate, tetrasodium diphosphate, disodium dihydrogen phosphate, Pentasodium triphosphate, so-called sodium hexametaphosphate, oligomeric Trisodium phosphate with amounts of oligomerization in the range from 5 to 1000, especially 5 to 50, and mixtures of sodium and potassium salts.
• phosphates for example alkali metal phosphates
• alkali metal phosphates in the form of their alkaline neutral or acidic sodium or potassium salts
• Trisodium phosphate such as Trisodium phosphate, tetrasodium diphosphate, disodium dihydrogen phosphate, Pentasodium triphosphate, so-called sodium hexameta
• Fine crystalline, synthetic water-containing zeolites of the type NaA the one Have calcium binding capacity in the range of 100 to 200 mg CaO / g a preferred use. These zeolites can be in an amount up to 20 wt .-% may be included in the average.
• Useful builders are also the preferred ones in Form of their sodium salts used percarboxylic acids, such as citric acid and Nitriloacetate (NTA), ethylenediaminetetraacetic acid. Analogous to this, too polymeric carboxylates and their salts are used.
• the relative molecular mass of the Homopolymers are generally between 1000 and 100,000, the Copolymers between 2000 and 200,000, preferably 50,000 to 120,000, based on the free acid.
• water-soluble polyacrylates are also suitable, for example, with about 1% of a polyallyl ether of sucrose are cross-linked and have a relative molecular mass above one million have. Examples of this are those under the name Carbopol® 940 and 941 available polymers.
• the cross-linked polyacrylates are not over in quantities 1 wt .-%, preferably used in amounts of 0.2 to 0.7 wt .-%. This Builders can be used in amounts up to 5% by weight.
• Preferred anionic surfactants are C 8 -C 20 fatty acid- ⁇ -methyl ester sulfonates, alkyl sulfates, alkyl ether sulfates and sec. Alkanesulfonates.
• the alkyl ether sulfates used in the agents according to the invention are water-soluble salts or acids of the formula RO (A) m SO 3 M, in which R is an unsubstituted C 10 -C 24 -alkyl or C 10 -C 24 -hydroxyalkyl radical, preferably a C 12 -C 20 alkyl or C 12 -C 20 hydroxyalkyl radical, particularly preferably C 12 -C 18 alkyl or C 12 -C 18 hydroxyalkyl radical.
• A is an ethoxy or propoxy unit
• m is a number greater than 0, preferably between 0.5 and approximately 6, particularly preferably between approximately 0.5 and approximately 3
• M is a hydrogen atom or a cation such as, for example a metal cation (e.g. sodium, potassium, lithium, calcium, magnesium, etc.), ammonium or a substituted ammonium cation.
• substituted ammonium cations are methyl, dimethyl, trimethylammonium and quaternary ammonium cations such as tetramethylammonium and dimethylpiperidinium cations as well as those derived from alkylamines such as ethylamine, diethylamine, triethylamine.
• alkyl ether sulfates are C 12 -C 18 alkyl polyethoxylate (1.0) sulfate, (C 12 -C 18 E (1.0) M), C 12 -C 18 alkyl polyethoxylate (2, 25) sulfate (C 12 -C 18 E (2.25) M), C 12 -C 18 alkyl polyethoxylate (3.0) sulfate (C 12 -C 18 E (3.0) M), C 12 -C 18 alkyl polyethoxylate (4.0) sulfate (C 12 -C 18 E (4.0) M).
• the alkyl group can either be saturated or unsaturated, branched or linear and optionally with a hydroxyl group be substituted.
• the sulfo group is statistically distributed over the entire C chain, with the primary methyl groups at the beginning and end of the chain none Possess sulfonate groups.
• the preferred secondary alkanesulfonates contain linear alkyl chains with 9 to 25 carbon atoms, preferably from 10 to 20 Carbon atoms and particularly preferably 13 to 17 carbon atoms.
• the cation is sodium, potassium, ammonium, mono-, di- or triethanolammonium, calcium or magnesium and mixtures thereof. Sodium as a cation is simplicity preferred for the sake of it.
• the Detergents and cleaning agents also other types of anionic surfactants contain, such as alkyl sulfates, sulfonates, carboxylates, phosphates and Mixtures of the compounds mentioned.
• Suitable cations are e.g. Sodium, potassium, calcium or magnesium, as well as ammonium Ammonium compounds, including mono-, di- or Triethanolammonium cations, as well as mixtures of these cations.
• Alkyl sulfates here are water-soluble salts or acids of the formula ROSO 3 M, in which R is preferably a C 10 -C 24 hydrocarbon radical, preferably an alkyl or hydroxyalkyl radical with C 10 -C 20 alkyl components, particularly preferably a C 12 -C 18 alkyl radical or hydroxyalkyl radical.
• M is hydrogen or a cation, for example sodium, potassium, lithium or ammonium or substituted ammonium, for example methyl, dimethyl and trimethylammonium cations and quaternary ammonium cations such as tetramethylammonium and dimethylpiperidinium cations and quaternary ammonium cations, derived from alkylamines such as ethylamine, diethylamine, triethylamine and Mixtures of these.
• alkylamines such as ethylamine, diethylamine, triethylamine and Mixtures of these.
• alkylbenzenesulfonate is alkylbenzenesulfonate.
• the alkyl group can be either saturated or unsaturated, branched or linear and optionally be substituted with a hydroxyl group.
• the preferred alkylbenzenesulfonates contain linear alkyl chains with 9 to 25 Carbon atoms, preferably from 10 to 13 carbon atoms, which is cation Sodium, potassium, ammonium, mono-, di- or triethanolammonium, calcium or Magnesium and mixtures thereof.
• Suitable anionic surfactants are carboxylates, for example fatty acid soaps and comparable surfactants.
• the soaps can be saturated or unsaturated and can contain various substituents, such as hydroxyl groups or alpha sulfonate groups. Linear saturated or unsaturated hydrocarbon residues are preferred as the hydrophobic component in the soaps.
• the hydrophobic components usually contain 6 to 30 carbon atoms, preferably 10 to 18 carbon atoms.
• anionic surfactants are salts of acylaminocarboxylic acids, which are formed by reacting fatty acid chlorides with sodium sarcosinate in an alkaline medium (acylsarcosinates), and fatty acid-protein condensation products, which are obtained by reacting fatty acid chlorides with oligopeptides.
• the salts of alkylsulfamidocarboxylic acids and the salts of alkyl and alkylaryl ether carboxylic acids also have surfactant properties.
• anionic surfactants which are useful for use in detergents and cleaning agents are C 8 -C 24 -olefin sulfonates, sulfonated polycarboxylic acids, prepared by sulfonating the pyrolysis products of alkaline earth metal citrates, as described, for example, in GB 1 082 179, alkyl glycerol sulfates, fatty acyl glycerol sulfates, oleyl glycerol sulfates , alkylphenol ether sulfates, primary paraffinsulfonates, alkyl phosphates, alkyl ether phosphates, isethionates such as the acyl isethionates, N-acyl taurides, alkyl succinamates, sulfosuccinates, monoester of sulfosuccinates (especially saturated and unsaturated C 12 -C 18 monoesters) and diesters of sul
• Resin acids or hydrogenated resin acids such as rosin or hydrogenated rosin or tall oil resins and tall oil resin acids can also be used. Further examples are described in "Surface Active Agents and Detergents” (Vol. I and II, Schwartz, Perry and Berch). A large number of such surfactants are also described in US 3,929,678.
• anionic surfactants are also alkyl ether sulfonates, glycerol ether, sulfofatty acids, Glycerol ether, Hydroxymischethersulfat, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, alkyl oligoglucoside sulfates, Alkylaminozuckersulfate and alkyl (ether) phosphates. If the anionic surfactants contain polyglycol ether chains, they can have a conventional or narrow homolog distribution.
• nonionic surfactants such as fatty acid alkyl ester, alkyl and / or alkenyl oligoglycosides, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty acid polyglycol esters, fatty acid amide, fatty amine polyglycol ethers, alkoxylated triglycerides, Fett Textreglucamiden, PolyölfettTexreester, Zuckerester, sorbitan esters and polysorbates and / or alkoxylated fatty alcohols may be used ,
• Co-surfactants from the group alkyl betaines, alkyl amido betaines, Aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines, Amine oxides and fatty acid alkanolamides or polyhydroxyamides are used.
• bleach activating acetonitrile derivatives known ones conventional bleach activators, that is compounds that are under Perhydrolysis conditions aliphatic peroxocarboxylic acids and / or optionally substituted perbenzoic acids are used.
• Suitable substances are organic compounds with a 0-acyl or N-acyl group, especially from the group of activated carboxylic acid esters, in particular sodium nonanoyloxy benzenesulfonate, sodium isononanoyloxy benzenesulfonate, Sodium 4-benzoyloxy-benzenesulfonate, sodium trimethylhexanoyloxy-benzenesulfonate, Carboxylic anhydrides, especially phthalic anhydride, acylated polyhydric alcohols, especially triacetin, ethylene glycol diacetate, 2,5-diacetoxy-2,5-dihydrofuran, lactones, acylates, carboxamides, acyl lactams, acyl lac
• bleach activators listed above or on in their place can also sulfonimines and / or bleach-enhancing Transition metal salts or transition metal complexes as so-called Bleach catalysts, as described in DE 196 49 375, may be included.
• Enzymes come from the class of proteases such as BLAP, Optimase, Opticlean, Maxacal, Maxapem, Esperase, Savinase, Purifect OxP and / or Durazym, lipases such as Lipolase, Lipomax, Lumafast and / or Lipozym, amylases such as Termamyl, Ainylase-LT, Maxamyl, Duramyl and / or Purafect OxAm, as well Cutinases, pullulanases or their mixture in question. Their share can range from 0.2 to 1% by weight.
• the enzymes can be adsorbed on carrier substances and / or be embedded in coating substances.
• foam regulators 0.5 to 4 wt .-% foam suppressing compounds, preferably from the Group of silicone oils, mixtures of silicone oil and hydrophobized silica, Paraffins, paraffin-alcohol combinations, hydrophobicized silica, the Bis fatty acid amides and other other known commercially available Defoamers can be added.
• the inventive System 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, but also mineral acids, in particular Sulfuric acid or alkali hydrogen sulfates or bases, especially ammonium or alkali hydroxides.
• Such pH regulators are in the Agents according to the invention preferably do not exceed 10% by weight, especially 0.5 to 6 wt .-% included.
• Suitable preservatives are, for example, phenoxyethanol, Formaldehyde solution, pentanediol or sorbic acid.
• Abrasives that can be used are Quartz flours, wood flours, plastic flours, chalks and micro glass balls.
• Typical examples of other additives are sodium borate, starch, Sucrose, polydextrose, stilbene compounds, methyl cellulose, toluenesulfonate, Cumene sulfonate, soaps and silicones.
• the preparation of the 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 to 1000 g / l can be done by first Process stage the builder components with at least a portion of liquid Mix components while increasing the bulk density of this premix mixed and then - if necessary after an intermediate drying - the other components of the agent, including the bleach activator, with the so obtained premix combined.
• silica Sipernat® 50 S (Degussa-Hüls) were placed in the Lödige mixer. submitted and at about 20 ° C over a period of 27 minutes 780 ml of a aqueous, about 67 wt .-% solution of trimethylacetonitrile ammonium chloride with sprayed on a two-component nozzle. After spraying it was 2 minutes remixed.
• Aerosil® 380 silica (Degussa Hüls) were placed in the Lödige mixer. submitted and at about 20 ° C over a period of 9 minutes 320 ml aqueous, about 67 wt .-% solution of trimethylacetonitrile ammonium chloride with sprayed on a two-component nozzle. After spraying it was 2 minutes remixed.
• Example 1 Dishwasher detergent (% by weight)
• Example 2 Dishwasher tablets (% by weight)
• Second phase sodium tripolyphosphate 31 Na perborate monohydrate 10 Acetonitrile / sipernate (52/48% by weight) 3 Polycarboxylate (Sokalan® CP5) 1 glucamide 2 sodium 15 Layered Silicate (SKS-6) 6
• Second phase sodium tripolyphosphate 26% by weight Complexing agent (Turpinal® 2NZ) 1% by weight Protease granules (Blap® 200) 2% by weight Amylase granules (Duranyl® 60 T) 2% by weight dye 0.9% by weight Perfume 0.1% by weight

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  • 2000-11-17 DE DE10057045A patent/DE10057045A1/de not_active Withdrawn
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