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EP1123373A1 - Melanges de tensioactifs non ioniques - Google Patents

Melanges de tensioactifs non ioniques

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Publication number
EP1123373A1
EP1123373A1 EP99953790A EP99953790A EP1123373A1 EP 1123373 A1 EP1123373 A1 EP 1123373A1 EP 99953790 A EP99953790 A EP 99953790A EP 99953790 A EP99953790 A EP 99953790A EP 1123373 A1 EP1123373 A1 EP 1123373A1
Authority
EP
European Patent Office
Prior art keywords
weight
acid
mixtures
radical
surfactant 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.)
Withdrawn
Application number
EP99953790A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Schmid
Rainer Eskuchen
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.)
BASF Personal Care and Nutrition GmbH
Original Assignee
Cognis Deutschland GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cognis Deutschland GmbH and Co KG filed Critical Cognis Deutschland GmbH and Co KG
Publication of EP1123373A1 publication Critical patent/EP1123373A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60—Sugars; Derivatives thereof
    • A61K8/604—Alkylpolyglycosides; Derivatives thereof, e.g. esters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • 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
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • 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

Definitions

  • the invention is in the detergent sector and relates to mixtures of alkyl oligoglucosides of different chain lengths and their use for the production of detergents.
  • Alkyl oligogiucosides are nonionic surfactants that are produced by acid acetalization of glucose or starch degradation products with primary alcohols. By choosing the process conditions, the average degree of polymerization, i.e. control the distribution of acetalized mono-, di-, tri- and oligoglucosides. If you also vary the chain length of the alcohol component or even use mixtures of different alcohols, countless types of alkyl oligoglucosides are available, which differ in their primary detergent properties - washing, emulsifying, foaming, wetting - more or less clearly.
  • Alkyl oligogiucosides are characterized by a foaming power, which clearly exceeds the conventional nonionic surfactants and is more similar to the anionic surfactants. This is undoubtedly an advantage for use in the area of manual dishwashing detergents or hair shampoos, whereas in the area of detergents, the opposite behavior, namely low foam, is desired in order to prevent the washing machine from overflowing or to keep the amount of defoamer required as low as possible .
  • Another problem is that the commercially available alkyl oligogiucosides, especially with regard to cosmetic soiling, show a rather average cleaning ability. This explains why alkyl oligogiucosides have so far only been used in modest amounts in detergent formulations. In this connection, reference is made to the two German patent applications DE-A1 4319699 and DE-A1 4319700, from which mild alkyl oligoglucoside mixtures with defined chain lengths and DP are known.
  • the complex object of the invention was therefore to provide new alkyl oligogiucosides which, with reduced foaming, should be distinguished by improved washability, particularly in relation to cosmetic soiling.
  • the invention relates to nonionic surfactant mixtures consisting of (a) alkyl oligoglucosides of the formula (I),
  • R 1 represents a tetradecyl radical
  • G represents a glucose radical
  • p1 represents a number in the range from 1 to 3
  • R 2 is a hexadecyl radical
  • G is a glucose radical
  • p2 is a number in the range from 1 to 3, with the proviso that the weight ratio of the two components in the range from 25:75 to 35:65 and the average degree of polymerization in Range from 1, 4 to 1, 5 is.
  • the mixtures compared to conventional commercial products with reduced foaming, are distinguished by improved washing performance, in particular with regard to cosmetic soiling.
  • Alkyl oligogiucosides are known nonionic surfactants which are usually prepared by acid-catalyzed acetalization of glucose or degraded starch syrup with primary alcohols; the catalyst is then neutralized and excess alcohol is distilled off.
  • Representative of the extensive literature here is the review by Biermann et al. in Starch /force 45, 281 (1993), B.Salka in Cosm.Toil. 108, 89 (1993) and J.Kahre et al. in S ⁇ FW- Journal issue 8, 598 (1995).
  • the DP ie the average degree of polymerization
  • the index number p1 or p2 for the individual, to a certain extent, chain-pure alkyl glucosides can be in the range from 1 to 3, since in the sense of the invention it is only important that the mixture has a DP of 1.4 to 1.5 having. This can be important, for example, if the surfactant mixtures are produced by mixing the individual glucosides.
  • the preparation takes place in such a way that an appropriate alcohol mixture is used in the acetalization and the reaction is controlled in such a way that the desired DP is established immediately.
  • the alkyl oligogiucosides are obtained after production in the form of aqueous pastes with a solids content in the range from 30 to 50% by weight and can be used directly in this form, in particular if they are to be incorporated into liquid detergents.
  • it is also possible to dewater the glucosides for example by spray drying, steam drying or simultaneous drying and granulation in a horizontal thin-film evaporator (flash dryer) or in a fluidized bed system, and then adding powder detergents as dry powders or granules.
  • another object of the invention is their use for the production of detergents, in particular liquid detergents, in which they are present in amounts of 5 to 50, preferably 10 to 30 and in particular 15 to 25% by weight .-% - based on - can be included.
  • the liquid detergents obtainable for the purposes of the invention using the nonionic surfactant mixtures can have a nonaqueous fraction in the range from 5 to 50 and preferably 15 to 35% by weight. In the simplest case, these are aqueous solutions of the surfactant mixtures mentioned.
  • the liquid detergents can, however, also be essentially water-free detergents. In the context of this invention, "essentially anhydrous" means that the agent preferably contains no free water which is not bound as water of crystallization or in a comparable form. In some cases, small amounts of free water are tolerable, especially in amounts up to 5% by weight.
  • liquid detergents may also have other typical ingredients, such as, for example, solvents, hydrotropes, bleaches, builders, viscosity regulators, enzymes, enzyme stabilizers, optical brighteners, soil repellants, foam inhibitors, inorganic salts and fragrances and colorants, provided that these are sufficiently stable in an aqueous environment.
  • solvents such as, for example, solvents, hydrotropes, bleaches, builders, viscosity regulators, enzymes, enzyme stabilizers, optical brighteners, soil repellants, foam inhibitors, inorganic salts and fragrances and colorants, provided that these are sufficiently stable in an aqueous environment.
  • suitable organic solvents are monofunctional and / or polyfunctional alcohols having 1 to 6 carbon atoms, preferably having 1 to 4 carbon atoms.
  • Preferred alcohols are ethanol, 1, 2-propanediol, glycerol and mixtures thereof.
  • the compositions preferably contain 2 to 20% by weight and in particular 5 to 15% by weight of ethanol or any mixture of ethanol and 1, 2-propanediol or in particular of ethanol and glycerol. It is also possible that the preparations either contain, in addition to the mono- and / or polyfunctional alcohols having 1 to 6 carbon atoms or solely polyethylene glycol with a relative molecular weight between 200 and 2000, preferably up to 600, in amounts of 2 to 17% by weight .
  • toluenesulfonate, xylenesulfonate, cumene sulfonate or mixtures thereof can be used as hydrotropes.
  • sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
  • Other bleaching agents are, for example, peroxy carbonate, citrate perhydrates and salts of peracids, such as perbenzoates, peroxyphthalates or diperoxydodecanedioic acid. They are usually used in amounts of 8 to 25% by weight.
  • the use of sodium perborate monohydrate in amounts of 10 to 20% by weight and in particular 10 to 15% by weight is preferred. Due to its ability to bind free water with the formation of the tetrahydrate, it contributes to increasing the stability of the agent. However, the preparations are preferably free from such bleaching agents.
  • Suitable builders are ethylenediaminetetraacetic acid, nitrilotriacetic acid, citric acid and inorganic phosphonic acids, e.g. the neutral reacting sodium salts of 1-hydroxyethane-1, 1, - diphosphonate, which can be present in amounts of 0.5 to 5, preferably 1 to 2 wt .-%.
  • Viscosity regulators which can be used are, for example, hardened castor oil, salts of long-chain fatty acids, preferably in amounts of 0 to 5% by weight and in particular in amounts of 0.5 to 2% by weight, for example sodium, potassium, aluminum, magnesium - And titanium stearates or the sodium and / or potassium salts of behenic acid, and other polymeric compounds are used.
  • the latter preferably include polyvinylpyrrolidone, urethanes and the salts of polymeric polycarboxylates, for example homopolymeric or copolymeric polyacrylates, polymethacrylates and in particular copolymers of acrylic acid with maleic acid, preferably those composed of 50% to 10% maleic acid.
  • the relative molecular weight of the homopolymers is generally between 1000 and 100000, that of the copolymers between 2000 and 200000, preferably between 50,000 and 120,000 on the free acid.
  • Water-soluble polyacrylates which are crosslinked, for example, with about 1% of a polyallyl ether of sucrose and which have a relative molecular weight above one million are also particularly suitable. Examples of this are the polymers with thickening action available under the name Carbopol® 940 and 941.
  • the crosslinked polyacrylates are preferably used in amounts not exceeding 1% by weight, preferably in amounts of 0.2 to 0.7% by weight.
  • the agents can additionally contain about 5 to 20% by weight of a partially esterified copolymer, as described in European patent application EP-A1 0367049.
  • This partially esterified polymers are prepared by copolymerizing (a) at least one C -C28-olefin or mixtures of at least one C-C2 0-olefin of up to 20 mol% Ci-C ⁇ -alkyl vinyl ethers and (b) ethylenically unsaturated dicarboxylic anhydrides with 4 to 8 carbon atoms in a molar ratio of 1: 1 to copolymers with K values from 6 to 100 and subsequent partial esterification of the copolymers with reaction products such as C 1 -C 3 alcohols, C 8 -C 22 fatty acids, C 1 -C 2 alkyl phenols , C ⁇ -C3o secondary amines or their mixtures with at least one C2-C-alkylene oxide or tetrahydrofuran and hydrolysis of the anhydride groups of the copolymers to carboxyl groups, the partial esterification of the copolymers being carried out to such an extent that 5 to 50% of the carboxyl groups
  • Preferred copolymers contain maleic anhydride as the ethylenically unsaturated dicarboxylic anhydride.
  • the partially esterified copolymers can be present either in the form of the free acid or preferably in partially or completely neutralized form.
  • the copolymers are advantageously used in the form of an aqueous solution, in particular in the form of a 40 to 50% strength by weight solution.
  • the copolymers not only contribute to the primary and secondary washing performance of the liquid washing and cleaning agent, but also bring about a desired reduction in the viscosity of the concentrated liquid washing agent.
  • the use of these partially esterified copolymers gives concentrated aqueous liquid detergents which are flowable under the sole influence of gravity and without the action of other shear forces.
  • the concentrated aqueous liquid detergents preferably contain partially esterified copolymers in amounts of 5 to 15% by weight and in particular in amounts of 8 to 12% by weight.
  • Suitable enzymes are those from the class of proteases, lipases, amylases, cellulases or mixtures thereof. Enzymatic active ingredients obtained from bacterial strains or fungi such as Bacillus subtilis, Bacillus licheniformis and Streptomyces griseus are particularly suitable. Proteases of the subtilisin type and in particular proteases which are obtained from Bacillus lentus are preferably used. Their proportion can be about 0.2 to about 2% by weight. The enzymes can be adsorbed on carriers and / or embedded in coating substances in order to protect them against premature decomposition. In addition to the mono- and polyfunctional alcohols and the phosphates, the agents can contain further enzyme stabilizers.
  • 0.5 to 1% by weight of sodium formate can be used. It is also possible to use proteases which contain soluble calcium salts and a calcium content of preferably about 1.2% by weight, based on the Enzyme that are stabilized.
  • proteases which contain soluble calcium salts and a calcium content of preferably about 1.2% by weight, based on the Enzyme that are stabilized.
  • boron compounds for example boric acid, boron oxide, borax and other alkali metal borates, such as the salts of orthoboric acid (H3BO3), metaboric acid (HBO2) and pyrobic acid (tetraboric acid H2B4O7), is particularly advantageous.
  • Suitable soil-repellants are those 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 compounds Polyethylene glycol units are 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.
  • the polymers are characterized by an average molecular weight of approximately 5000 to 200,000 and can have a block, but preferably a random 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 Weight from 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 (IG) or Repelotex® SRP 3 (Rhône-Poulenc).
  • foam inhibitors When used in machine washing processes, it can be advantageous to add conventional foam inhibitors to the agents.
  • Soaps of natural or synthetic origin with a high content of Ci8-C24 fatty acids are suitable.
  • Suitable non-surfactant-like foam inhibitors are, for example, organopolysiloxanes and their mixtures with microfine, optionally silanized silica, and paraffins, waxes, microcrystalline waxes and their mixtures with silanized silica or bistearylethylenediamide.
  • Mixtures of different foam inhibitors are also used with advantages, e.g. those made of silicone, paraffins or waxes.
  • the foam inhibitors, in particular silicone or paraffin-containing foam inhibitors are preferably bound to a granular, water-soluble or dispersible carrier substance. Mixtures of paraffins and bistearylethylenediamides are particularly preferred.
  • the pH of the concentrated agents according to the invention is generally 7 to 10.5, preferably 7 to 9.5 and in particular 7 to 8.5. Higher pH values, for example above 9, can be set by using small amounts of sodium hydroxide solution or alkaline salts such as sodium carbonate or sodium silicate.
  • the liquid detergents according to the invention generally have viscosities between 150 and 10,000 mPas (Brookfield viscometer, spindle 1, 20 revolutions per minute, 20 ° C.). Viscosities between 150 and 5000 mPas are preferred for the essentially water-free agents.
  • the viscosity of the aqueous compositions is preferably below 2000 mPas and in particular between 150 and 1000 mPas. Powder detergent
  • the surfactants mentioned can, in addition to the surfactants mentioned, include other typical ingredients, such as, for example, builders, bleaches, bleach activators, detergency boosters, enzymes, enzyme stabilizers, graying inhibitors, optical brighteners, soil repellants, foam inhibitors, inorganic salts as well as fragrances and dyes.
  • builders for example, bleaches, bleach activators, detergency boosters, enzymes, enzyme stabilizers, graying inhibitors, optical brighteners, soil repellants, foam inhibitors, inorganic salts as well as fragrances and dyes.
  • finely crystalline, synthetic and bound water-containing zeolite such as zeolite NaA in detergent quality is used as the solid builder.
  • zeolite NaX and mixtures of NaA and NaX are also suitable.
  • the zeolite can be used as a 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 Ci2-Ci8 fatty alcohols with 2 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, in particular 20 to 22% by weight of bound water.
  • Suitable substitutes or partial substitutes for zeolites are crystalline, layered sodium silicates of the general formula NaMSixG ⁇ x + ryH ⁇ O, where M is sodium or hydrogen, x is a number from 1, 9 to 4 and y is a number from 0 to 20 and is preferred Values for x are 2, 3 or 4.
  • Such crystalline layered silicates are described, for example, in European patent application EP-A1 0164514.
  • Preferred crystalline layered silicates are those in which M in the general formula stands for sodium and x assumes the values 2 or 3.
  • both ⁇ - and ⁇ -sodium disilicate Na2Si2C , 5 , yH2 ⁇ are preferred, it being possible, for example, to obtain ⁇ -sodium disilicate by the process described in international patent application WO 91/08171.
  • the powder detergents according to the invention preferably contain 10 to 60% by weight of zeolite and / or crystalline layered silicates as solid builders, mixtures of zeolite and crystalline layered silicates in any ratio being particularly advantageous.
  • the agents contain 20 to 50% by weight of zeolite and / or crystalline layered silicates.
  • agents contain up to 40% by weight of zeolite and in particular up to 35% by weight of zeolite, in each case based on anhydrous active substance.
  • Other suitable ingredients of the agents are water-soluble amorphous silicates; they are preferably used in combination with zeolite and / or crystalline layered silicates.
  • Particularly preferred are agents which contain, above all, sodium silicate with a molar ratio (module) Na ⁇ O: SiO ⁇ of 1: 1 to 1: 4.5, preferably of 1: 2 to 1: 3.5.
  • the content of amorphous sodium silicates in the agents is preferably up to 15% by weight and preferably between 2 and 8% by weight.
  • Phosphates such as tripolyphosphate Phates, pyrophosphates and orthophosphates can be contained in small amounts in the agents.
  • the content of the phosphates in the compositions is preferably up to 15% by weight, but in particular 0 to 10% by weight.
  • the agents can also contain layered silicates of natural and synthetic origin. Layered silicates of this type are known, for example, from patent applications DE-C1 2334899, EP-A1 0026529 and DE-A1 3526405. Their usability is not limited to a special composition or structural formula. However, smectites, in particular bentonites, are preferred here. Suitable layered 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 water of hydration is usually in the range of 8 to 20% by weight and depends on the swelling condition or the type of processing.
  • Useful layer silicates are known, for example, from US 3,966,629, US 4,062,647, EP-A 0026529 and EP-A 0028432.
  • Layer silicates are preferably used which are largely free of calcium ions and strongly coloring iron ions due to an alkali treatment.
  • Usable organic builders are, for example, the polycarboxylic acids preferably used in the form of their sodium salts, such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids, aminocarboxylic acids, nitrotriesriacetic acid (NTA), provided that such use is not objectionable for ecological reasons. and 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.
  • 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).
  • 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.
  • Their 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. The use of polymeric polycarboxylates is not absolutely necessary.
  • agents are preferred which are biodegradable polymers, for example terpolymers, the monomers acrylic acid and maleic acid or salts thereof, and vinyl alcohol or vinyl alcohol derivatives, or the monomers acrylic acid and 2-alkylallylsulfonic acid or salts thereof as well as sugar derivatives.
  • Terpolymers in particular preferred, which are obtained according to the teaching of German patent applications DE-A1 4221381 and DE-A1 4300772.
  • Further suitable builder substances are 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-A1 0280223.
  • Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and their mixtures and from polyolcarboxylic acids such as gluconic acid and / or glucoheptonic acid.
  • bleach activators can be incorporated into the preparations.
  • these are N-acyl or O-acyl compounds which form organic peracids with hydrogen peroxide, preferably N, N'-tetraacylated diamines, furthermore carboxylic acid anhydrides and esters of polyols such as glucose pentaacetate.
  • the bleach activators contain bleach activators in the usual range, preferably between 1 and 10% by weight and in particular between 3 and 8% by weight.
  • Particularly preferred bleach activators are N, N, N ', N'-tetraacetylethylenediamine and 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine.
  • Graying inhibitors have the task of keeping the dirt detached from the fibers suspended in the liquor and thus preventing graying.
  • 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, e.g. degraded starch, aldehyde starches, etc. Polyvinylpyrrolidone can also be used.
  • cellulose ethers such as carboxymethyl cellulose, 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 composition.
  • the agents can contain derivatives of diaminostilbenedisulfonic acid or its alkali metal salts. Suitable are, for example, salts of 4,4'-bis (2-anilino-4-morpholino-1, 3,5-triazinyl-6-amino) stilbene-2,2'-disulfonic acid or compounds of similar structure which are used instead of Morpholino group carry a diethanolamino group, a methylamino group, an anilino group or a 2-methoxyethylamino group.
  • Brighteners of the substituted diphenylstyryl type may also be present, for example the alkali salts of 4,4'-bis (2-sulfostyryl) diphenyl, 4,4'-bis (4-chloro-3-sulfostyryl) diphenyis, or 4- (4-chlorostyryl) -4 '- (2-sulfostyryl) diphenyl. Mixtures of the aforementioned brighteners can also be used.
  • Uniform white granules are obtained if, apart from the usual brighteners, the agents are used in conventional amounts, for example between 0.1 and 0.5% by weight, preferably between 0.1 and 0.3 wt .-%, even small amounts, for example, 10- 6 to 10- 3 wt .-%, preferably by 10 "5 wt .-% of a blue dye.
  • a particularly preferred dye is Tinolux® (commercial product of Ciba-Geigy).
  • the bulk density of the detergents is generally 300 to 1200 g / l, in particular 500 to 1100 g / l.
  • They can be produced by any of the known processes such as mixing, spray drying, granulating and extruding. Processes in which several partial components, for example spray-dried components and granulated and / or extruded components, are mixed with one another are particularly suitable. It is also possible for spray-dried or granulated components to be subsequently treated, for example with nonionic surfactants, in particular ethoxylated fatty alcohols, by the customary processes.
  • the anionic surfactants which may be present in the form of a spray-dried, granulated or extruded compound, either as an additive component in the process or as an additive to other granules.
  • the preferred heavier granules with bulk densities above 600 g / l preferably contain components which improve the flushing behavior and / or the dissolving behavior of the granules.
  • Alkoxylated fatty alcohols with 12 to 80 moles of ethylene oxide per mole of alcohol for example tallow fatty alcohol with 14 EO, 30 EO or 40 EO, and polyethylene glycols with a relative molecular weight between 200 and 12000, preferably between 200 and 600, are advantageously used for this purpose.
  • Suitable surface modifiers are known from the prior art.
  • suitable, finely divided zeolites, silicas, amorphous silicates, fatty acids or fatty acid salts for example calcium stearate, but in particular mixtures of zeolite and silicas or zeolite and calcium stearate are particularly preferred.
  • Alkyl oligogiucosides with different carbon chain distribution in the alkyl radical and with different DPs were characterized with regard to their application properties.
  • the foaming power was investigated according to the Ross-Miles test in 1% by weight solution at 40 ° C. in hard water (16 °). Base foam and foam height were determined after 20 min. Detergency, in a standard liquid detergent formulation (concentration: 100 g / wash) wash at 40 ° C with a hot / colored ⁇ was determined photometrically against a barium sulfate white standard depending on various stains and fabrics. The mean values from 5 determinations are given. The results are summarized in Table 1.
  • Example 1 is according to the invention, Examples V1 to V5 are used for comparison; V5 is a commercial alkyl oligoglucoside.

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Abstract

L'invention concerne des mélanges de tensioactifs non ioniques constitués (a) d'alkyloligoglucosides de la formule (I) R1O(G)p1, dans laquelle R1 représente un reste tétradécyle, G représente un reste glucose et p1 représente un nombre pouvant aller de 1 à 3, et (b) d'alkyloligoglucosides de la formule (II) R2O(G)p2, dans laquelle R2 représente un reste hexadécyle, G représente un reste glucose et p2 représente un nombre pouvant aller de 1 à 3, à condition que le rapport pondéral des deux composants soit compris dans la plage allant de 25:75 à 35:65 et que le degré de polymérisation moyen soit compris dans la plage 1,4-1,5. Ces mélanges se caractérisent par des performances de lavage améliorées, cela avec une formation de mousse réduite.
EP99953790A 1998-10-21 1999-10-12 Melanges de tensioactifs non ioniques Withdrawn EP1123373A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1998148549 DE19848549A1 (de) 1998-10-21 1998-10-21 Nichtionische Tensidmischungen
DE19848549 1998-10-21
PCT/EP1999/007664 WO2000023551A1 (fr) 1998-10-21 1999-10-12 Melanges de tensioactifs non ioniques

Publications (1)

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EP1123373A1 true EP1123373A1 (fr) 2001-08-16

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EP99953790A Withdrawn EP1123373A1 (fr) 1998-10-21 1999-10-12 Melanges de tensioactifs non ioniques

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EP (1) EP1123373A1 (fr)
JP (1) JP2002527608A (fr)
DE (1) DE19848549A1 (fr)
WO (1) WO2000023551A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019790A1 (de) * 1990-06-21 1992-01-02 Henkel Kgaa Fluessige alkylglykosidhaltige tensidmischung
DE4319700A1 (de) * 1993-06-16 1994-12-22 Henkel Kgaa Ultramilde Tensidmischungen
FR2712595B1 (fr) * 1993-11-19 1995-12-22 Seppic Sa Un concentré comportant des alkylglycosides et ses utilisations.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0023551A1 *

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DE19848549A1 (de) 2000-04-27
JP2002527608A (ja) 2002-08-27
WO2000023551A1 (fr) 2000-04-27

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