EP1274828A1 - Procede de production de granules de lessive - Google Patents

Procede de production de granules de lessive

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Publication number
EP1274828A1
EP1274828A1 EP01940314A EP01940314A EP1274828A1 EP 1274828 A1 EP1274828 A1 EP 1274828A1 EP 01940314 A EP01940314 A EP 01940314A EP 01940314 A EP01940314 A EP 01940314A EP 1274828 A1 EP1274828 A1 EP 1274828A1
Authority
EP
European Patent Office
Prior art keywords
alcohol
acid
alkyl
weight
mixtures
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.)
Granted
Application number
EP01940314A
Other languages
German (de)
English (en)
Other versions
EP1274828B1 (fr
Inventor
Rainer Eskuchen
Bernhard Gutsche
Manfred Weuthen
Ditmar Kischkel
Tycho Michel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cognis IP Management GmbH
Original Assignee
Cognis Deutschland GmbH and Co KG
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Publication date
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Publication of EP1274828A1 publication Critical patent/EP1274828A1/fr
Application granted granted Critical
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Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/2027—Monohydric alcohols unsaturated
    • C11D3/2031—Monohydric alcohols unsaturated fatty or with at least 8 carbon atoms in the alkenyl chain
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/662—Carbohydrates or derivatives
    • 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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0082—Special 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
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/201—Monohydric alcohols linear
    • C11D3/2013—Monohydric alcohols linear fatty or with at least 8 carbon atoms in the alkyl chain
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/2017—Monohydric alcohols branched
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/2017—Monohydric alcohols branched
    • C11D3/202—Monohydric alcohols branched fatty or with at least 8 carbon atoms in the alkyl chain

Definitions

  • the invention is in the field of solid detergents and relates to a new process for the production of solid, water-free detergent granules based on sugar surfactants.
  • Alkyl oligoglucosides are important detergent surfactants because they are compatible as non-ionic compounds with a variety of other ingredients, but they have a foaming and cleaning ability that is much more similar to that of anionic surfactants. They are produced from glucose and fatty alcohol, which are acetalized in the presence of acidic catalysts. To shift the reaction equilibrium, the fatty alcohol is generally used in a substantial excess, with the result that the resulting glucosides must subsequently be freed from unreacted alcohol with great technical effort before they are then sold as aqueous pastes. For the production of solid detergents, especially extrudates, heavy powders and, more recently, also for tablets, alkyl oligoglucosides are increasingly desired in solid forms.
  • the object of the present invention was therefore to provide a process for the preparation of water-free detergent granules with a high content of alk (en) yl-oligoglycosides, which is free of the described Disadvantages is, ie starting at the earliest possible point in the production of the glycosides and thus minimizing the technical outlay and the production costs for the granules.
  • the invention relates to a process for the production of water-free detergent granules, in which technical mixtures of alkyl and / or alkenyl oligoglycosides and fatty alcohols are reduced to a residual fatty alcohol content of at most 30% by weight, and the resulting melt in a mixer or extruder Detergent additives mixed.
  • Alkyl and alkenyl oligoglycosides are known nonionic surfactants which follow the formula (I)
  • R 1 is an alkyl and / or alkenyl radical having 4 to 22 carbon atoms
  • G is a sugar radical having 5 or 6 carbon atoms
  • p is a number from 1 to 10.
  • the alkyl and / or alkenyl oligoglycosides can be derived from aldoses or ketoses with 5 or 6 carbon atoms, preferably glucose.
  • the preferred alkyl and / or alkenyl oligoglycosides are thus alkyl and / or alkenyl oligoglucosides.
  • the index number p in the general formula (I) indicates the degree of oligomerization (DP), i.e. H. the distribution of mono- and oligoglycosides is present and stands for a number between 1 and 10.
  • the alkyl or alkenyl radical R 1 can be derived from primary alcohols having 4 to 11, preferably 8 to 10, carbon atoms. Typical examples are butanol, capron alcohol, caprylic alcohol, capric alcohol and undecyl alcohol and their technical mixtures, such as are obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the course of the hydrogenation of aldehydes from Roelen's oxosynthesis.
  • the alkyl or alkenyl radical R 1 can also be derived from primary alcohols having 12 to 22, preferably 12 to 18, carbon atoms.
  • Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol and the technical mixtures described above, which can be obtained as well as their technical mixtures.
  • Alkyl oligoglucosides based on hydrogenated C ⁇ 2/4 ⁇ coconut alcohol with a DP of 1 to 3 fatty alcohols
  • Fatty alcohols are to be understood as primary aliphatic alcohols of the formula (II)
  • R 2 represents an aliphatic, linear or branched hydrocarbon radical having 6 to 22 carbon atoms and 0 and / or 1, 2 or 3 double bonds.
  • Typical examples are capronic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linoleyl alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol, linoleyl alcohol alcohol,
  • fatty alcohol Since the fatty alcohol does not contribute to the washing result, it is desirable for economic reasons to keep its content as low as possible. However, a very low fatty alcohol content means a high energy input for the evaporation, which would then put an economic burden on the process. Furthermore, one has to take into account that the glycosides are sensitive to temperature, so a gentle and therefore technically complex separation would be necessary. Conversely offers thus a higher fatty alcohol content has a certain economic advantage, since the separation can be carried out with less effort. However, this parameter is again limited by the fact that most detergent formulations do not tolerate surfactant granules with a fatty alcohol content above 30% by weight; Higher alcohol levels also destabilize the granules. For this reason, the depletion of fatty alcohol from the technical mixtures always represents a compromise between the parameters mentioned.
  • the actual depletion is less critical from a technical point of view, i.e. taking into account the known low temperature resistance of sugar surfactants (risk of caramelization), all types of evaporators are considered that take this into account, but preferably thin-film evaporators, falling film evaporators or short-path evaporators and - if necessary - any combination of these components.
  • the depletion can then take place in a manner known per se, for example at temperatures in the range from 110 to 160 ° C. and reduced pressures from 0.1 to 10 mbar.
  • the depleted glycoside-fatty alcohol mixtures are immediately after leaving the evaporator, i.e. still mixed in the molten state with typical detergent additives, which are, for example, builders, co-builders, oil and fat-dissolving substances, bleaches, bleach activators, enzymes, enzyme stabilizers, graying inhibitors, optical brighteners, polymers, defoamers, disintegrants, fragrances and / or can act inorganic salts.
  • typical detergent additives are, for example, builders, co-builders, oil and fat-dissolving substances, bleaches, bleach activators, enzymes, enzyme stabilizers, graying inhibitors, optical brighteners, polymers, defoamers, disintegrants, fragrances and / or can act inorganic salts.
  • the fine crystalline, synthetic and bound water-containing zeolite which is frequently used as a detergent builder is preferably zeolite A and / or P.
  • zeolite P for example, zeolite MAP (R) (commercial product from Crosfield) is particularly preferred.
  • zeolite X and mixtures of A, X and / or P and Y are also suitable.
  • a cocrystallized sodium / potassium aluminum silicate composed of zeolite A and zeolite X, which as VEGOBOND AX ® (commercial product from Condea Augusta SpA) is commercially available.
  • the zeolite can be spray dried Powder or as an undried stabilized suspension that is still moist from its manufacture.
  • the zeolite may contain minor additions of nonionic surfactants as stabilizers, for example 1 to 3% by weight, based on zeolite, of ethoxylated C 2 -C 8 fatty alcohols with 2 to 5 ethylene oxide groups , -C 2 -C H fatty alcohols with 4 to 5 ethylene oxide groups or ethoxylated isotridecanols.
  • Suitable zeolites have an average particle size of less than 10 ⁇ m (volume distribution; measurement method: Coulter Counter) and preferably contain 18 to 22% by weight, in particular 20 to 22% by weight, of bound water.
  • Suitable substitutes or partial substitutes for phosphates and zeolites are crystalline, layered sodium silicates of the general formula NaMSi x O 2x + ⁇ -yH 2 0, where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to Is 20 and preferred values for x are 2, 3 or 4.
  • Such crystalline layered silicates are described, for example, in European patent application EP 0164514 AI.
  • Preferred crystalline phyllosilicates of the formula given are those in which M is sodium and x is 2 or 3.
  • both ⁇ - and ⁇ -sodium disilicate Na 2 Si 2 0 5 -yH 2 O are preferred, with ⁇ -sodium disilicate being able to be obtained, for example, by the method described in international patent application WO 91/08171.
  • Other suitable layer silicates are known, for example, from patent applications DE 2334899 AI, EP 0026529 AI and DE 3526405 AI. Their usability is not limited to a special composition or structural formula. However, smectites, in particular bentonites, are preferred here. Suitable sheet silicates, which belong to the group of water-swellable smectites, are, for example, those of the general formulas
  • the layered silicates can contain hydrogen, alkali, alkaline earth ions, in particular Na + and Ca 2+ .
  • the amount of hydrate water is usually in the range from 8 to 20% by weight and depends on the swelling state or the type of processing.
  • Useful layer silicates are known for example from US 3,966,629, US 4,062,647, EP 0026529 AI and EP 0028432 AI.
  • front- Layer silicates are preferably used which are largely free of calcium ions and strongly coloring iron ions due to an alkali treatment.
  • the preferred builder substances also include amorphous sodium silicates with a modulus Na 2 O: SiO 2 from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2, 6, which are delayed release and have secondary washing properties.
  • the delay in dissolution compared to conventional amorphous sodium silicates can have been caused in various ways, for example by surface treatment, compounding, compacting / compression or by overdrying.
  • the term “amorphous” is also understood to mean “X-ray amorphous”.
  • silicates in X-ray diffraction experiments do not provide sharp X-ray reflections, as are typical for crystalline substances, but at most one or more maxima of the scattered X-rays, which have a width of several degree units of the diffraction angle.
  • it can very well lead to particularly good builder properties if the silicate particles deliver washed-out or even sharp diffraction maxima in electron diffraction experiments. This is to be interpreted as meaning that the products have microcrystalline areas of size 10 to a few hundred nm, values up to max. 50 nm and in particular up to max. 20 nm are preferred.
  • Such so-called X-ray amorphous silicates which also have a delay in dissolution compared to conventional water glasses, are described, for example, in German patent application DE 4400024 AI.
  • Compacted / compacted amorphous silicates, compounded amorphous silicates and over-dried X-ray amorphous silicates are particularly preferred.
  • phosphates As builders, provided that such use should not be avoided for ecological reasons.
  • the sodium salts of orthophosphates, pyrophosphates and in particular tripolyphosphates are particularly suitable.
  • Usable organic builders that are suitable as co-builders are, for example, the polycarboxylic acids that can be used in the form of their sodium salts, such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), if such Use for ecological reasons is not objectionable, as well as mixtures of these.
  • Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures of these. The acids themselves can also be used.
  • the acids typically also have the property of an acidifying component and thus also serve to establish a lower and milder pH of detergents or cleaning agents.
  • Citric acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any mixtures of these should be mentioned in particular.
  • Suitable organic builder substances are dextrins, for example oligomers or polymers of carbohydrates, which can be obtained by partial hydrolysis of starches.
  • the hydrolysis can be carried out by customary processes, for example acid-catalyzed or enzyme-catalyzed. They are preferably hydrolysis products with average molecular weights in the range from 400 to 500,000.
  • DE dextrose equivalent
  • Both maltodextrins with a DE between 3 and 20 and dry glucose syrups with a DE between 20 and 37 as well as so-called yellow dextrins and white dextrins with higher molar masses in the range from 2,000 to 30,000 can be used.
  • a preferred dextrin is described in British patent application GB 9419091 AI described.
  • the oxidized derivatives of such dextrins are their reaction products with oxidizing agents which are capable of oxidizing at least one alcohol function of the saccharide ring to the carboxylic acid function.
  • Such oxidized dextrins and processes for their preparation are known, for example, from European patent applications EP 0232202 AI, EP 0427349 AI, EP 0472042 AI and EP 0542496 AI and international patent applications WO 92/18542, WO 93/08251, WO 93/16110, WO 94/28030, WO 95/07303, WO 95/12619 and WO 95/20608 are known.
  • An oxidized oligosaccharide according to German patent application DE 19600018 AI is also suitable.
  • a product oxidized at C 6 of the saccharide ring can be particularly advantageous.
  • cobuilders are oxydisuccinates and other derivatives of disuccinates, preferably ethylenediamine disuccinate.
  • glycerol disuccinates and glycerol trisuccinates are particularly preferred in this context, as are described, for example, in US Pat. Nos. 4,524,009, 4,639,325, in European patent application EP 0150930 AI and in Japanese patent application JP 93/339896.
  • Suitable amounts are in zeolite-containing gene and / or silicate-containing formulations at 3 to 15 wt .-%.
  • organic cobuilders are, for example, acetylated hydroxycarboxylic acids or their salts, which may also be in lactone form and which contain at least 4 carbon atoms and at least one hydroxyl group and a maximum of two acid groups.
  • Such cobuilders are described, for example, in international patent application WO 95/20029.
  • Suitable polymeric polycarboxylates are, for example, the sodium salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 800 to 150,000 (based on acid and measured in each case against polystyrene sulfonic acid).
  • Suitable copolymeric polycarboxylates are, in particular, those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid. Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
  • the relative molecular weight, based on free acids, is generally 5,000 to 200,000, preferably 10,000 to 120,000 and in particular 50,000 to 100,000 (measured in each case against polystyrene sulfonic acid).
  • the (co) polymeric polycarboxylates can be used either as a powder or as an aqueous solution, with 20 to 55% by weight aqueous solutions being preferred.
  • Granular polymers are usually subsequently mixed into one or more basic granules.
  • biodegradable polymers composed of more than two different monomer units, for example those which, according to DE 4300772 A1, are monomers as salts of acrylic acid and maleic acid, and vinyl alcohol or vinyl alcohol derivatives, or, according to DE 4221381 C2, as monomers, salts of acrylic acid and the 2-alkylallylsulfonic acid and sugar derivatives.
  • Further preferred copolymers are those which are described in German patent applications DE 4303320 AI and DE 4417734 AI and which preferably have acrolein and acrylic acid / acrylic acid salts or acrolein and vinyl acetate as monomers.
  • polymeric aminodicarboxylic acids are also to be mentioned as further preferred builder substances. Polyaspartic acids or their salts and derivatives are particularly preferred.
  • polyacetals which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 carbon atoms and at least 3 hydroxyl groups, for example as described in European patent application EP 0280223 A1.
  • Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and their mixtures and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid. 01- and fat-dissolving substances
  • the preferred oil and fat-dissolving components include, for example, nonionic cellulose ethers such as methyl cellulose and methyl hydroxypropyl cellulose with a proportion of methoxyl groups of 15 to 30% by weight and of hydroxypropoxyl groups of 1 to 15% by weight, in each case based on the nonionic Cellulose ethers, as well as the polymers of phthalic acid and / or terephthalic acid or their derivatives known from the prior art, in particular polymers of ethylene terephthalates and / or polyethylene glycol terephthalates or anionically and / or nonionically modified derivatives thereof. Of these, the sulfonated derivatives of phthalic acid and terephthalic acid polymers are particularly preferred.
  • sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
  • Other useful bleaching agents are, for example, sodium percarbonate, peroxypyrophosphates, citrate perhydrates and H 2 0 2 -supplying peracidic salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or diperododecanedioic acid.
  • the bleaching agent content of the agents is preferably 5 to 35% by weight and in particular up to 30% by weight, advantageously using perborate monohydrate or percarbonate.
  • Compounds which, under perhydrolysis conditions, give aliphatic peroxocarboxylic acids with preferably 1 to 10 C atoms, in particular 2 to 4 C atoms, and / or optionally substituted perbenzoic acid can be used as bleach activators.
  • Substances which carry 0- and / or N-acyl groups of the number of carbon atoms mentioned and / or optionally substituted benzoyl groups are suitable.
  • polyacylated alkylenediamines especially tetraacetylethylene diamine (TAED), acylated triazine derivatives, especially 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), acylated glycolurils, especially tetraacetylglycoluril (TAGU), N-acylimides, especially N-nonanoylsuccinimide (NOSI), acylated phenol sulfonates, especially n-nonanoyl- or isononanoyloxybenzenesulfonate (n- or iso-NOBS), carboxylic acid anhydrides, especially phthalic anhydride, acylated polyhydric alcohols, especially triacetate, especially triacetine, Diacetoxy-2,5-dihydrofuran and the enol esters known from German patent applications DE 19616693 AI and DE 19616767 AI
  • hydrophilically substituted acylacetals known from German patent application DE 19616769 A1 and the acyl lactams described in German patent application DE 19616770 and international patent application WO 95/14075 are also preferably used.
  • the combinations of conventional bleach activators known from German patent application DE 4443177 AI can also be used. Such bleach activators are in the usual quantity range, primarily preferably in amounts of 1% by weight to 10% by weight, in particular 2% by weight to 8% by weight, based on the total agent.
  • the sulfonimines and / or bleach-enhancing transition metal salts or transition metal complexes known from European patents EP 0446982 Bl and EP 0453 003 Bl can 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 19529905 AI and their N-analog compounds known from German patent application DE 19620267 AI, which are known from German patent application DE 19536082 AI known manganese, iron, cobalt, ruthenium or molybdenum carbonyl complexes, the manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium, described in German patent application DE 19605688 AI and copper complexes with nitrogen-containing tripod ligands, the cobalt, iron, copper and ruthenium amine complexes known from German patent application DE 19620411 AI, the manganese, copper and cobalt described in German patent application DE 4416438 AI -Complexes, the cobalt complexes described in the European patent application EP 0272030 AI, known from the European patent application EP 0693550 AI gan complexes, the manga
  • bleach activators and transition metal bleach catalysts are known, for example, from German patent application DE 19613103 AI and international patent application WO 95/27775.
  • Bleach-enhancing transition metal complexes in particular with the central atoms Mn, Fe, Co, Cu, Mo, V, Ti and / or Ru, can also be used.
  • Particularly suitable enzymes are those from the class of hydrolases, such as proteases, esterases, lipases or lipolytically active enzymes, amylases, cellulases or other glycosyl hydrolases, and mixtures of the enzymes mentioned. All of these hydrolases contribute to the removal of stains, such as stains containing protein, fat or starch, and graying in the laundry. Cellulases and other glyco- By removing pilling and microfibrils, sylhydrolases can help maintain color and increase the softness of the textile. Oxidoreductases can also be used to bleach or inhibit color transfer.
  • hydrolases such as proteases, esterases, lipases or lipolytically active enzymes, amylases, cellulases or other glycosyl hydrolases, and mixtures of the enzymes mentioned. All of these hydrolases contribute to the removal of stains, such as stains containing protein, fat or starch, and graying in the laundry. Cellulases and
  • Enzymes obtained from bacterial strains or fungi such as Bacillus subtilis, Bacillus licheniformis, Streptomyces griseus and Humicola insolens, are particularly suitable.
  • Proteases of the subtilisin type and in particular proteases which are obtained from Bacillus lentus are preferably used.
  • enzyme mixtures for example from protease and amylase or protease and lipase or lipolytically active enzymes or protease and cellulase or from cellulase and lipase or lipolytically active enzymes or from protease, amylase and lipase or lipolytically active enzymes or protease, lipase or lipolytically active enzymes and cellulase, in particular, however, mixtures containing protease and / or lipase or mixtures with lipolytically active enzymes of particular interest.
  • cutinases are examples of such lipolytically active enzymes.
  • Peroxidases or oxides have also proven to be suitable in some cases.
  • Suitable amylases include in particular ⁇ -amylases, iso-amylases, pullulanases and pectinases.
  • Cellobiohydrolases, endoglucanases and ⁇ -glucosidases, which are also called cellobiases, or mixtures thereof, are preferably used as cellulases. Since the different cellulase types differ in their CMCase and avicelase activities, the desired activities can be set by targeted mixtures of the cellulases.
  • the enzymes can be adsorbed on carriers and / or embedded in coating substances in order to protect them against premature decomposition.
  • the agents can contain further enzyme stabilizers.
  • enzyme stabilizers For example, 0.5 to 1% by weight sodium formate can be used. It is also possible to use proteases which are stabilized with soluble calcium salts and a calcium content of preferably about 1.2% by weight, based on the enzyme.
  • calcium salts magnesium salts also serve as stabilizers.
  • boron compounds for example boric acid, boron oxide, borax and other alkali metal borates such as the salts of orthoboric acid (H 3 B0 3 ), metaboric acid (HB0 2 ) and pyroboric acid (tetraboric acid H 2 B 4 0 7 ), is particularly advantageous ).
  • Verqrauunqsinhibitoren Graying inhibitors have the task of keeping the dirt detached from the fiber suspended in the liquor and thus preventing the dirt from being re-absorbed.
  • Water-soluble colloids of mostly organic nature are suitable for this, for example the water-soluble salts of polymeric carboxylic acids, glue, gelatin, salts of ether carboxylic acids or ether sulfonic acids of starch or cellulose or salts of acidic sulfuric acid esters of cellulose or starch.
  • Water-soluble polyamides containing acidic groups are also suitable for this purpose. Soluble starch preparations and starch products other than those mentioned above can also be used, for example degraded starch, aldehyde starches, etc. Polyvinylpyrrolidone can also be used.
  • cellulose ethers such as carboxymethyl cellulose (sodium salt), methyl cellulose, hydroxyalkyl cellulose and mixed ethers such as methyl hydroxyethyl cellulose, methyl hydroxypropyl cellulose, methyl carboxymethyl cellulose and mixtures thereof, and also polyvinylpyrrolidone, for example in amounts of 0.1 to 5% by weight, based on the Means used.
  • the granules can contain derivatives of diaminostilbenedisulfonic acid or its alkali metal salts. Suitable are e.g. Salts of 4,4'-bis (2-anilino-4-morpholino-l, 3,5-triazinyl-6-amino) stilbene-2,2'-disulfonic acid or compounds of the same structure which, instead of the morpholino group, have a diethanolamino group , a methylamino group, an anilino group or a 2-methoxyethylamino group.
  • brighteners of the substituted diphenylstyryl type may be present, e.g.
  • Suitable soil repellants are substances which preferably contain ethylene terephthalate and / or polyethylene glycol terephthalate groups, the molar ratio of ethylene terephthalate to polyethylene glycol terephthalate being in the range from 50:50 to 90:10.
  • the molecular weight of the linking polyethylene glycol units is in particular in the range from 750 to 5000, ie the degree of ethoxylation of the polymers containing polyethylene glycol groups can be approximately 15 to 100 be.
  • the polymers are characterized by an average molecular weight of about 5000 to 200,000 and can have a block, but preferably a random structure.
  • Preferred polymers are those with molar ratios of ethylene terephthalate / polyethylene glycol terephthalate from about 65:35 to about 90:10, preferably from about 70:30 to 80:20. Also preferred are those polymers which have linking polyethylene glycol units with a molecular weight of 750 to 5000, preferably from 1000 to about 3000 and a molecular weight of the polymer from about 10,000 to about 50,000. Examples of commercially available polymers are the products Milease® T (ICI) or Repelotex® SRP 3 (Rhône-Poulenc).
  • Wax-like compounds can be used as defoamers.
  • Compounds which have a melting point at atmospheric pressure above 25 ° C. (room temperature), preferably above 50 ° C. and in particular above 70 ° C., are understood to be “waxy”.
  • the waxy defoamer substances are practically insoluble in water, i.e. at 20 ° C they have a solubility of less than 0.1% by weight in 100 g of water.
  • all wax-like defoamer substances known from the prior art can be contained.
  • Suitable waxy compounds are, for example, bisamides, fatty alcohols, fatty acids, carboxylic acid esters of mono- and polyhydric alcohols, and paraffin waxes or mixtures thereof.
  • the silicone compounds known for this purpose can of course also be used.
  • Suitable paraffin waxes generally represent a complex mixture of substances without a sharp melting point. For characterization, one usually determines its melting range by differential thermal analysis (DTA), as described in "The Analyst” ⁇ 7 (1962), 420, and / or its freezing point. This is the temperature at which the paraffin changes from the liquid to the solid state by slow cooling. Paraffins which are completely liquid at room temperature, that is to say those having a solidification point below 25 ° C., cannot be used according to the invention.
  • the soft waxes which have a melting point in the range from 35 to 50 ° C., preferably include the group of petrolates and their hydrogenation products.
  • solid hydrocarbons with melting points between 63 and 79 ° C which are separated from the highly viscous, paraffin-containing lubricating oil distillates during the dewaxing.
  • These petrolates are mixtures of microcrystalline waxes and high-melting n-paraffins.
  • the paraffin wax mixtures known from EP 0309931 A1 for example from 26% by weight to 49% by weight of microcrystalline paraffin wax with a solidification point from 62 ° C.
  • paraffins or paraffin mixtures which solidify in the range from 30 ° C. to 90 ° C. are preferably used. It should be noted that even paraffin wax mixtures that appear solid at room temperature can contain different proportions of liquid paraffin. In the paraffin waxes which can be used according to the invention, this liquid fraction is as low as possible and is preferably absent entirely. Particularly preferred paraffin wax mixtures at 30 ° C.
  • a liquid fraction of less than 10% by weight in particular from 2% by weight to 5% by weight, and at 40 ° C a liquid fraction of less than 30% by weight from 5% by weight to 25% by weight and in particular from 5% by weight to 15% by weight, at 60 ° C. a liquid fraction of 30% by weight to 60% by weight, in particular 40% by weight .-% to 55 wt .-%, at 80 ° C a liquid content of 80 wt .-% to 100 wt .-%, and at 90 ° C a liquid content of 100 wt .-%.
  • the temperature at which a liquid content of 100% by weight of the paraffin wax is reached is still below 85 ° C., in particular at 75 ° C. to 82 ° C., in particularly preferred paraffin wax mixtures.
  • the paraffin waxes can be petrolatum, microcrystalline waxes or hydrogenated or partially hydrogenated paraffin waxes.
  • Suitable bisamides as defoamers are those which are derived from saturated fatty acids with 12 to 22, preferably 14 to 18 C atoms and from alkylenediamines with 2 to 7 C atoms.
  • Suitable fatty acids are lauric acid, myristic acid, stearic acid, arachic acid and behenic acid and mixtures thereof, as are obtainable from natural fats or hardened oils, such as tallow or hydrogenated palm oil.
  • Suitable diamines are, for example, ethylene diamine, 1,3-propylene diamine, tetramethylene diamine, pentamethylene diamine, hexamethylene diamine, p-phenylene diamine and toluene diamine.
  • Diamines are ethylenediamine and hexamethylenediamine.
  • Particularly preferred bisamides are bismyristoylethylene diamine, bispalmitoylethylene diamine, bisstearoylethylene diamine and mixtures thereof and the corresponding derivatives of hexamethylene diamine.
  • Suitable carboxylic acid esters as defoamers are derived from carboxylic acids with 12 to 28 carbon atoms.
  • these are esters of behenic acid, stearic acid, hydroxystearic acid, oleic acid, palmitic acid, myristic acid and / or lauric acid.
  • the alcohol part of the carboxylic acid ester contains a mono- or polyhydric alcohol with 1 to 28 carbon atoms in the hydrocarbon chain.
  • suitable alcohols are behenyl alcohol, arachidyl alcohol, coconut alcohol, 12-hydroxystearyl alcohol, oleyl alcohol and lauryl alcohol as well as ethylene glycol, glycerin, polyvinyl alcohol, sucrose, erythritol, pentaerythritol, sorbitan and / or sorbitol.
  • Preferred esters are those of ethylene glycol, glycerol and sorbitan, the acid part of the ester being selected in particular from behenic acid, stearic acid, oleic acid, palmitic acid or myristic acid.
  • Suitable esters of polyvalent alcohols include xylitol monopalmitate, glycol monostearate Pentarythritmonostearat, glycerol, ethylene oxide and sorbitan, sorbitan, sorbitan, sorting bitandilaurat, galkylsorbitanmono- sorbitan, sorbitan dioleate, and also mixed valley and diesters.
  • Glycerol esters which can be used are the mono-, di- or triesters of glycerol and the carboxylic acids mentioned, the mono- or diesters being preferred.
  • Glycerol monostearate, glycerol monooleate, glycerol monopalmitate, glycerol monobehenate and glycerol distearate are examples of this.
  • suitable natural esters as defoamers are beeswax, which mainly consists of the esters CH 3 (CH 2 ) 24 COO (CH 2 ) 27 CH 3 and CH 3 (CH 2 ) 26 COO (CH 2 ) 25 CH 3
  • carnauba wax which is a mixture of carnauba acid alkyl esters, often in combination with small amounts of free carnauba acid, other long-chain acids, high-molecular alcohols and hydrocarbons.
  • Suitable carboxylic acids as a further defoamer compound are, in particular, behenic acid, stearic acid, oleic acid, palmitic acid, myristic acid and lauric acid, and mixtures thereof, as are obtainable from natural fats or optionally hardened oils, such as tallow or hydrogenated palm oil.
  • Saturated fatty acids with 12 to 22, in particular 18 to 22, carbon atoms are preferred.
  • the corresponding fatty alcohols of the same C chain length can be used in the same way.
  • Dialkyl ethers may also be present as defoamers.
  • the ethers can be constructed asymmetrically or symmetrically, ie two identical or different contain different alkyl chains, preferably having 8 to 18 carbon atoms.
  • Typical examples are di-n-octyl ether, di-i-octyl ether and di-n-stearyl ether; dialkyl ethers which have a melting point above 25 ° C., in particular above 40 ° C., are particularly suitable.
  • Suitable defoamer compounds are fatty ketones, which can be obtained by the relevant methods of preparative organic chemistry. For their preparation, one starts from, for example, carboxylic acid magnesium salts which are pyrolyzed at temperatures above 300 ° C. with the elimination of carbon dioxide and water, for example in accordance with German published patent application DE 2553900 OS.
  • Suitable fatty ketones are those which are prepared by pyrolysis of the magnesium salts of lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, elaidic acid, petroselinic acid, arachic acid, gadoleic acid, behenic acid or erucic acid.
  • Suitable defoamers are fatty acid polyethylene glycol esters, which are preferably obtained by base-homogeneously catalyzed addition of ethylene oxide to fatty acids.
  • the addition of ethylene oxide to the fatty acids takes place in the presence of alkanolamines as catalysts.
  • alkanolamines especially triethanolamine, leads to an extremely selective ethoxylation of the fatty acids, especially when it comes to producing low-ethoxylated compounds.
  • the paraffin waxes described are particularly preferably used alone as wax-like defoamers or in a mixture with one of the other wax-like defoamers, the proportion of paraffin waxes in the mixture preferably making up more than 50% by weight, based on the wax-like defoamer mixture.
  • the paraffin waxes can be applied to carriers if necessary. All known inorganic and / or organic carrier materials are suitable as carrier materials. Examples of typical inorganic carrier materials are alkali carbonates, aluminosilicates, water-soluble layer silicates, alkali silicates, alkali sulfates, for example sodium sulfate, and alkali phosphates.
  • the alkali silicates are preferably a compound with a molar ratio of alkali oxide to SiO 2 of 1: 1.5 to 1: 3.5.
  • the use of such silicates results in particularly good grain properties, in particular high abrasion stability and nevertheless high dissolution rate in water.
  • Alumosilicates include, in particular, the zeolites, for example zeolite NaA and NaX.
  • the compounds referred to as water-soluble layered silicates include, for example, amorphous or crystalline water glass. Silicates which are commercially available under the name Aerosil® or Sipemat® can also be used.
  • suitable organic carrier materials are film-forming polymers, for example polyvinyl alcohols, polyvinyl pyrrolidones, poly (meth) acrylates, polycarboxylates, cellulose derivatives and starch.
  • Usable cellulose ethers are, in particular, alkali carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose and so-called cellulose mixed ethers, such as, for example, methyl hydroxyethyl cellulose and methyl hydroxypropyl cellulose, and mixtures thereof.
  • Particularly suitable mixtures are composed of sodium carboxymethyl cellulose and methyl cellulose, the carboxymethyl cellulose usually having a degree of substitution of 0.5 to 0.8 carboxymethyl groups per anhydroglucose unit and the methyl cellulose having a degree of substitution of 1.2 to 2 methyl groups per anhydroglucose unit.
  • the mixtures preferably contain alkali carboxymethyl cellulose and nonionic cellulose ethers in weight ratios from 80:20 to 40:60, in particular from 75:25 to 50:50.
  • native starch which is composed of amylose and amylopectin. Starch is referred to as native starch as it is available as an extract from natural sources, for example from rice, potatoes, corn and wheat.
  • Carrier materials which can be used individually or more than one of the abovementioned compounds, in particular selected from the group of alkali metal carbonates, alkali metal sulfates, alkali metal phosphates, zeolites, water-soluble sheet silicates, alkali metal silicates, polycarboxylates, cellulose ethers, polyacrylate / polymethacrylate and starch.
  • alkali carbonates in particular sodium carbonate, alkali silicates, in particular sodium silicate, alkali sulfates, in particular sodium sulfate and zeolites are particularly suitable.
  • Suitable silicones are conventional organopolysiloxanes, which can have a content of finely divided silica, which in turn can also be silanized. Such organopolysiloxanes are described, for example, in European patent application EP 0496510 AI. Polydiorganosiloxanes and in particular polydimethylsiloxanes, which are known from the prior art, are particularly preferred. Suitable polydiorganosiloxanes have an almost linear chain and have a degree of oligomerization of 40 to 1500. Examples of suitable substituents are methyl, ethyl, propyl, isobutyl, tert. Butyl and phenyl.
  • simethicones which are mixtures of dimethicones with an average chain length of 200 to 300 dimethylsiloxane units and hydrogenated silicates.
  • the silicones in general and the polydiorganosiloxanes in particular contain finely divided silica, which can also be silanated.
  • Silicic acid-containing dimethylpolysiloxanes are particularly suitable for the purposes of the present invention.
  • the polydiorganosiloxanes advantageously have a Brookfield viscosity at 25 ° C.
  • silicones in the range from 5000 mPas to 30,000 mPas, in particular from 15,000 to 25,000 mPas.
  • the silicones are preferably used in the form of their aqueous emulsions. As a rule, the silicone is added to the water provided with stirring. If desired, thickeners such as are known from the prior art can be added to increase the viscosity of the aqueous silicone emulsions.
  • nonionic cellulose ethers such as methyl cellulose, ethyl cellulose and mixed ethers such as methyl hydroxyethyl cellulose, methyl hydroxypropyl cellulose, methyl hydroxybutyl cellulose and anionic carboxy cellulose types such as the carboxy methyl cellulose sodium salt (abbreviation CMC).
  • Particularly suitable thickeners are mixtures of CMC to non-ionic cellulose ethers in a weight ratio of 80:20 to 40:60, in particular 75:25 to 60:40.
  • aqueous silicone solutions are given starch which is accessible from natural sources, for example from rice, potatoes, corn and wheat.
  • the starch is advantageously present in amounts of 0.1 to 50% by weight, based on the silicone emulsion, and in particular in a mixture with the already described thickener mixtures of sodium carboxymethyl cellulose and a nonionic cellulose ether in the amounts already mentioned.
  • the procedure is expediently such that the thickeners which may be present are allowed to swell in water before the silicones are added.
  • the silicones are expediently incorporated with the aid of effective stirring and mixing devices. Sprenqffen
  • the granules can further contain disintegrants or disintegrants.
  • these substances increase their volume, on the one hand increasing their own volume (swelling), and on the other hand a pressure can be generated by the release of gases, which causes the tablet to disintegrate into smaller particles.
  • Well-known disintegration aids are, for example, carbonate / citric acid systems, although other organic acids can also be used.
  • Swelling disintegration aids are, for example, synthetic polymers such as optionally crosslinked polyvinylpyrrolidone (PVP) or natural polymers or modified natural products such as cellulose and starch and their derivatives, alginates or casein derivatives.
  • PVP polyvinylpyrrolidone
  • Disintegrants based on cellulose are used as preferred disintegrants in the context of the present invention. Pure cellulose has the formal gross composition (C 6 H ⁇ o0 5 ) n and, formally speaking, is a ß-1,4-polyacetal of cellobiose, which in turn is made up of two molecules of glucose.
  • Suitable celluloses consist of approximately 500 to 5000 glucose units and consequently have average molecular weights of 50,000 to 500,000.
  • Cellulose-based disintegrants which can be used in the context of the present invention are also cellulose derivatives which can be obtained from cellulose by polymer-analogous reactions.
  • Such chemically modified celluloses include, for example, products from esterifications or etherifications in which hydroxy hydrogen atoms have been substituted.
  • celluloses in which the hydroxyl groups have been replaced by functional groups which are not bound via an oxygen atom can also be used as cellulose derivatives.
  • the group of cellulose derivatives includes, for example, alkali celluloses, carboxymethyl cellulose (CMC), cellulose esters and ethers and amino celluloses.
  • the cellulose derivatives mentioned are preferably not used alone as a cellulose-based disintegrant, but are used in a mixture with cellulose.
  • the content of cellulose derivatives in these mixtures is preferably below 50% by weight, particularly preferably below 20% by weight, based on the cellulose-based disintegrant.
  • Pure cellulose which is free of cellulose derivatives is particularly preferably used as the disintegrant based on cellulose.
  • Microcrystalline cellulose can be used as a further cellulose-based disintegrant or as a component of this component. This microcrystalline cellulose is All hydrolysis of celluloses obtained under conditions which only attack and completely dissolve the amorphous areas (approx. 30% of the total cellulose mass) of the celluloses, but leave the crystalline areas (approx. 70%) undamaged.
  • microcrystalline celluloses which have primary particle sizes of approximately 5 ⁇ m and can be compacted, for example, into granules with an average particle size of 200 ⁇ m.
  • the disintegrants can be macroscopically homogeneously distributed in the shaped body, but microscopically they form zones of increased concentration due to the manufacturing process.
  • Disintegrants which may be present in the context of the invention, such as, for example, collidone, alginic acid and its alkali metal salts, amorphous or also partially crystalline sheet silicates (bentonites), polyacrylates, polyethylene glycols are, for example, the publications WO 98/40462 (Rettenmaier), WO 98/55583 and WO 98/55590 (Unilever) and WO 98/40463, DE 19709991 and DE 19710254 (Henkel) can be found. Reference is expressly made to the teaching of these writings.
  • fragrance compounds for example the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type, can be used as perfume oils or fragrances.
  • Fragrance compounds of the ester type are, for example, benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate, phenylethyl acetate, linalylbenzoate, benzyl formate, ethylmethylphenylpropylylcincinate, allylcyclohexylpropylpropylatelionylpylpropylatelionylpylpropylatepylionate.
  • the ethers include, for example, benzyl ethyl ether
  • the aldehydes include, for example, the linear alkanals with 8-18 C atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, hydroxycitronellal, lilial and bourgeonal
  • the ketones include, for example, the jonones, ⁇ -isomethyl ionone and methyl cedryl ketone the alcohols anethole, citronellol, eugenol, geraniol, linalool, phenylethyl alcohol and terpineol
  • the hydrocarbons mainly include the terpenes such as limonene and pinene.
  • Perfume oils of this type can also contain natural fragrance mixtures such as are obtainable from plant sources, for example pine, citrus, jasmine, patchouli, rose or ylang-ylang oil. Also suitable are muscatel, sage oil, chamomile oil, clove oil, lemon balm oil, mint oil, cinnamon leaf oil, linden blossom oil, juniper berry oil, vetiver oil, olibanum oil, galbanum oil and labdanum oil as well as orange blossom oil, neroliol, orange peel oil and sandalwood oil.
  • the fragrances can be used directly in the appropriate granules, but it can also be advantageous to apply the fragrances to carriers, which increase the adhesion of the perfume to the laundry and ensure a long-lasting fragrance of the textiles through a slower fragrance release.
  • Cyclodextrins for example, have proven useful as such carrier materials, and the cyclodextrin-perfume complexes can additionally be coated with further auxiliaries.
  • Suitable ingredients of the granules are water-soluble inorganic salts such as bicarbonates, carbonates, amorphous silicates, normal water glasses, which have no outstanding builder properties, or mixtures of these;
  • alkali carbonate and / or amorphous alkali silicate especially sodium silicate with a molar ratio Na 2 0: Si0 2 from 1: 1 to 1: 4.5, preferably from 1: 2 to 1: 3.5, are used.
  • the depleted glycoside / fatty alcohol melts can be mixed continuously or batchwise in a manner known per se with the other detergent ingredients.
  • components of the type three-continuous-ring layer mixer K-TT, Hosokawa Turbulizer, Schugi-Flexomix, Schugi Extrud-O-Mix or Eirisch mixer are suitable.
  • Lödige mixers for example of the CB or FKM type, or VRV dryers of the Flash-Dryer type are preferably used.
  • the additive is usually introduced and the melt is sprayed on, while in the flash dryer, which has three zones which can be heated independently of one another, the melt is introduced and the additive is then continuously applied via a solids metering device.
  • the additives are generally metered in in such an amount that granules are formed which are 30 to 60% by weight and preferably 45 to 55% by weight of alkyl or alkenyl oligoglycosides. Examples
  • Example 1 From a technical C 2 -C 4 coconut alkyl oligoglucoside mixture with a residual fatty alcohol content of 68% by weight, a thin film evaporator (exchange surface 0.3 m 2 , throughput 13.5 kg / h, temperature 137 ° C., Operating pressure 1 mbar) the alcohol content reduced to 23.5 wt .-%.
  • the resulting light yellow melt was metered continuously together with zeolite (Wessalith® P, Degussa, addition via solids metering, 5 kg / h) into a VRV dryer of the Flash Dryer type with a heat exchange area of 0.44 m 2 ; the temperatures in the three heating zones were 110, 60 and 20 ° C. Free-flowing granules were obtained.
  • Example 2 From a technical C 2 -C 4 coconut alkyl oligoglucoside mixture with a residual fatty alcohol content of 68% by weight, a short path evaporator (exchange surface 4.3 dm 2 , throughput 2.2 kg / h, temperature 147 ° C., Operating pressure 0.5 mbar) the alcohol content is reduced to 10.6% by weight. 600 g of cellulose (Technocell® 100) were placed in a 5 l Lödige mixer with a chopper and premixed for 2 min at maximum speed. Subsequently, 257 g of the glucoside / fatty alcohol melt obtained beforehand were metered in using the chopper and mixed in for 30 s. Free-flowing granules were obtained.
  • a short path evaporator exchange surface 4.3 dm 2 , throughput 2.2 kg / h, temperature 147 ° C., Operating pressure 0.5 mbar

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WO2003057815A1 (fr) * 2002-01-07 2003-07-17 Ciba Specialty Chemicals Holding Inc. Composition particulaire comprenant des fixatifs de colorant

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WO2001081529A1 (fr) 2001-11-01
EP1274828B1 (fr) 2004-12-01
ES2233649T3 (es) 2005-06-16
US20030039624A1 (en) 2003-02-27
AU2001273935A1 (en) 2001-11-07
DE10019405A1 (de) 2001-10-25
ATE283909T1 (de) 2004-12-15
US6936581B2 (en) 2005-08-30
DE50104689D1 (de) 2005-01-05

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