EP1137751B1 - Emulsion aqueuse regulatrice de mousse - Google Patents

Emulsion aqueuse regulatrice de mousse Download PDF

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Publication number
EP1137751B1
EP1137751B1 EP99965429A EP99965429A EP1137751B1 EP 1137751 B1 EP1137751 B1 EP 1137751B1 EP 99965429 A EP99965429 A EP 99965429A EP 99965429 A EP99965429 A EP 99965429A EP 1137751 B1 EP1137751 B1 EP 1137751B1
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EP
European Patent Office
Prior art keywords
weight
foam control
emulsion according
aqueous
control emulsion
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.)
Expired - Lifetime
Application number
EP99965429A
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German (de)
English (en)
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EP1137751A1 (fr
Inventor
Thomas Otto Gassenmeier
Jürgen MILLHOFF
Maria Liphard
Rene-Andres Artiga Gonzalez
Stefan Hammelstein
Ingrid Kraus
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Publication of EP1137751A1 publication Critical patent/EP1137751A1/fr
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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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/835—Mixtures of non-ionic with cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
    • C11D1/528—Carboxylic amides (R1-CO-NR2R3), where at least one of the chains R1, R2 or R3 is interrupted by a functional group, e.g. a -NH-, -NR-, -CO-, or -CON- group
    • 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
    • C11D1/38—Cationic compounds
    • C11D1/65—Mixtures of anionic with cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating compositions
    • 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
    • C11D3/18—Hydrocarbons
    • 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
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the invention relates to a foam control system based on paraffin and optionally silicone, which is in the form of an aqueous emulsion, its use for the preparation of particulate foam control agent and a method for the same Production.
  • European Patent EP 0 309 931 B1 describes suitable particulate foam control agents for use in detergents and cleaners comprising a water-soluble surfactant-free carrier material and a siloxane-free defoamer mixture of 5-60% by weight of soft and / or hard paraffin adsorbed thereon, 20-90% by weight of microcrystalline paraffin wax having a certain melting range and 5-20% by weight of a diamide derived from C 2-7 diamines and C 12-22 fatty acids in finely divided form.
  • the preparation of such particulate foam control agents is carried out by spray-drying an aqueous slurry containing the support material and the defoaming mixture.
  • the defoamer performance of the defoamer mixture is reported to be insufficient when sprayed onto a particulate detergent.
  • the subject of the German Offenlegungsschrift DE 23 38 468 is a detergent with a content of a silicone defoamer, which interacts with the Detergent components is protected.
  • aqueous Melting the silicone defoamer and a vehicle, for example Polyglycol initially spray-dried and the resulting particles in one fluidized bed of a solid, water-soluble coating material with a coating Mistake.
  • a coating material common salts used in detergents, in particular tripolyphosphate or carboxymethylcellulose may be used.
  • German Offenlegungsschrift DE 31 28 631 describes the production of Foam-dampened detergents containing silicone defoamers containing are microencapsulated.
  • the silicone is in an aqueous solution of a dispersed film-forming polymers and the dispersion - separated from the rest in Water dissolved or dispersed detergent ingredients - over a supplied special line the spray drying system.
  • the union of the two Partial flows take place in the area of the spray nozzle.
  • film-forming polymers come to Example cellulose ethers. Starch ethers or synthetic water-soluble polymers as well their mixtures in question.
  • the formation of the microcapsules takes place spontaneously in the spray nozzle or by previous precipitation by addition of electrolyte salts to the silicone dispersion.
  • the process described is necessarily spray-dried on the preparation Detergent bound. A transfer to otherwise, for example by Granulation produced detergents and cleaners or other Fields of application is not possible with this method of operation.
  • European Patent Application EP 097 867 describes a process for the preparation microencapsulated defoamer oils by mixing a silicone emulsion with a aqueous solution of carboxymethyl cellulose and precipitation of the microcapsules Addition of electrolytes, in particular polyvalent salts or organic Solvent. It presents considerable difficulties for a sufficient Foam damping required small amounts of silicone microcapsules in a comparatively large amount of washing powder to be distributed homogeneously.
  • German Offenlegungsschrift DE 34 36 194 describes a process for the preparation a free-flowing antifoam granulate by spray-drying an aqueous, film-forming polymers containing defoamer.
  • a Granules of composition 1 to 10 wt .-% water-insoluble Defoamer active ingredient, 0.2 to 2% by weight of a mixture of sodium carboxymethylcellulose and methylcellulose in a weight ratio of 80:20 to 40:60, 70 to 90% by weight.
  • inorganic, water-soluble or dispersible carrier salts balance water, is allowed to a 0.5 to 8 wt .-% of the cellulose ether mixture containing aqueous solution at a temperature of 15 to 60 ° C swell until the viscosity of the solution is at least 75% of the viscosity, with complete swelling of the cellulose ether solution is measured, whereupon in this solution the defoamer dispersed and after addition of the carrier salts and optionally water the homogenized dispersion spray-dried.
  • defoamer active ingredients Organopolysiloxanes, paraffins and mixtures of organopolysiloxanes and paraffins used.
  • the antifoam active ingredient content is 1 to 10% by weight, preferably 3 to 7% by weight.
  • the carrier salt is preferably a mixture of sodium silicate, Sodium tripolyphosphate and sodium sulfate.
  • European Patent EP 0 337 523 B1 discloses a process for the production powdered detergent containing at least 5 wt .-% anionic surfactant, 20-80 Wt .-% aluminosilicate and in water and anionic and nonionic surfactants contain substantially insoluble paraffin wax, which co-spraying or Subsequent spraying of the paraffin on the prefabricated detergent particles as essential process step.
  • the paraffin wax can also be in the form of a Mixture with nonionic surfactants are used.
  • the problem solved by the present invention was mainly a liquid formulation of a paraffin and Bisfettklamid and optionally To develop silicone oil-containing foam regulator system, the low viscosity and at Low temperatures is manageable and the lowest possible proportion of not Having foam regulator performance contributing ingredients.
  • both at the production and the storage as well as with the possible further processing of the liquid composition to particulate products only the lowest possible Decrease in defoamer performance occur.
  • the object of the invention with which this object is achieved is an aqueous foam regulator emulsion comprising 16% by weight to 70% by weight paraffin wax or paraffin wax and silicone oil based foam regulator, 2% to 15% by weight nonionic and or anionic emulsifier and not more than 80 wt .-% water.
  • a paraffin wax base is understood to mean a combination of paraffin wax and bis-fatty acid amide.
  • a foam regulator emulsion according to the invention preferably contains 15% by weight to 60% by weight, in particular 30% by weight to 50% by weight paraffin wax or a mixture of paraffin wax and silicone oil, 1% by weight to 10% by weight, in particular from 3% by weight to 8% by weight of bis-fatty acid amide derived from C 2-7 -diamines and C 12-22 -fatty acids, from 2% by weight to 15% by weight, in particular from 3% by weight to 10% Wt .-% of nonionic and / or anionic emulsifier and not more than 80 wt .-%, in particular not more than 60 wt .-% and particularly preferably 20 wt .-% to 50 wt .-% water.
  • the invention also relates to a process for the preparation of particulate foam regulator granules by spraying the said aqueous emulsion to a solid Support material, which optionally followed by a drying step, or by Spray-drying an aqueous slurry obtained by mixing the Foam regulator emulsion with solid support material and optionally water.
  • a paraffin wax-containing foam regulator emulsion according to the invention is preferably by melting the paraffin wax and the Bisfettklaamides in Presence of the emulsifier, optionally cooling the melt to at most 100 ° C and stirring in water. If mixtures of nonionic Emulsifier and anionic emulsifier are used, it is preferred that the nonionic emulsifier as described in the melt of paraffin wax and bis-fatty acid amide to incorporate and the anionic emulsifier not the melt, but prior to stirring the melt add to the water. If you have paraffin wax and Bisfettklamid in molten, not cooled form, it is preferred cold water with a temperature of at least room temperature use.
  • the melt is stirred in water at a temperature of is cooled to at most about 100 ° C, it is preferred to use water at a temperature of about 50 ° C to 80 ° C use.
  • Usual stirring devices are usually sufficient to achieve the even distribution of all components and thus to produce the aqueous emulsion according to the invention; the use of high-speed mixers or homogenizers (for example Ultra Turrax®) is usually not required. The additional incorporation of silicone oil is at any point this Possible.
  • the Silicone oil in comparison to the amount of Paraffin wax contain a higher amount it is preferably first mixed the Silicone oil with the nonionic and / or anionic emulsifier, stirring a portion of the amount of water so that a water-type emulsion in silicone creates, adds more water until it comes to an inversion of the emulsion, stirs vigorously and then with stirring the remaining water.
  • the means in the outer water phase can also be droplets of the original Kememulsion type water in silicone are.
  • the foam regulator emulsions obtainable according to the invention are stable and exhibit 60 ° C preferably viscosities below 2500 mPa.s, in particular in the range of 100 mPa.s to 500 mPa.s, measured for example with a Brookfield rotational viscometer, Spindle No. 2, 5 revolutions per minute, on.
  • paraffin waxes in question in accordance with the invention are generally complex mixtures without a sharp melting point.
  • their melting range is usually determined by differential thermal analysis (DTA) as described in "The Analyst” 87 (1962), 420, and / or their solidification point. This is the temperature at which the wax passes from the liquid to the solid state by slow cooling.
  • DTA differential thermal analysis
  • paraffins which are completely liquid at room temperature ie those having a solidification point below 25.degree. C.
  • solid paraffins which are solid at room temperature are useful.
  • the paraffin wax is solid at room temperature and is at 100 ° C in a completely liquid form.
  • paraffin wax mixtures known from European patent application EP 0 309 931 may be used, for example, from 26% by weight to 49% by weight of microcrystalline paraffin wax having a solidification point of from 62 ° C. to 90 ° C., from 20% by weight to 49% by weight % Hard paraffin with a solidification point of 42 ° C to 56 ° C and 2 wt .-% to 25 wt .-% soft paraffin with a solidification point of 35 ° C to 40 ° C.
  • paraffins or paraffin mixtures are used, which solidify in the range of 30 ° C to 90 ° C. It should be noted that even at room temperature appearing paraffin wax mixtures may contain different proportions of liquid paraffin.
  • the liquid fraction at 40 ° C. is as high as possible, without already being 100% at this temperature.
  • Preferred paraffin wax mixtures have at 40 ° C a liquid content of at least 50 wt .-%, in particular from 55 wt .-% to 80 wt .-%, and at 60 ° C, a liquid content of at least 90 wt .-% to the temperature at a liquid content of 100 wt .-% of the paraffin wax is reached, in particularly preferred Paraffinwachsgemischen still below 85 ° C, in particular at 75 ° C to 82 ° C. It should also be ensured that the paraffins contain as far as possible no volatile components.
  • Preferred paraffin waxes contain less than 1 wt .-%, in particular less than 0.5 wt .-% at 110 ° C and atmospheric pressure vaporizable fractions.
  • Paraffin waxes which can be used according to the invention can be obtained, for example, under the trade names Lunaflex® from Fuller and Deawax® from DEA Mineralöl AG.
  • Foam-regulating mixtures of paraffin wax with foam-regulating silicone oil can also be used instead of the paraffin wax.
  • the reference to silicone oil in the context of the present invention also always means its mixing with finely divided fillers, for example hydrophilic or hydrophobic silica, so-called highly dispersed silicic acid.
  • silicone oil for example polydimethylsiloxane, in mixtures of paraffin wax and silicone oil is preferably contained in such amounts that the foam regulator emulsion prepared therefrom has a content of silicone oil in the range from 0.1% to 10% by weight, in particular 1 wt .-% to 5 wt .-%.
  • the foam regulator emulsion contains a mixture of silicone oil and paraffin wax in a weight ratio of 2: 1 to 1: 100, in particular 1: 1 to 1:10.
  • a particularly preferred foam regulator emulsion contains 10% by weight to 40% by weight, in particular 15% by weight to 35% by weight of silicone oil and 50% by weight to 80% by weight of water.
  • paraffin wax-containing foam regulator emulsion is a second essential component of the Bisfettkladamiden defoaming system educated.
  • Suitable are bisamides, ranging from saturated fatty acids 12 to 22, preferably 14 to 18 carbon atoms and of alkylenediamines having 2 to 7 carbon atoms derived.
  • Suitable fatty acids are lauric, myristic, stearic, arachinic and behenic acid and mixtures thereof, such as natural fats or hardened oils, such as tallow or hydrogenated palm oil.
  • Suitable diamines are, for example Ethylenediamine 1,3-propylenediamine, tetramethylenediamine, pentamethylenediamine, hexamethylenediamine, p-phenylenediamine and toluenediamine.
  • Preferred diamines are ethylenediamine and hexamethylenediamine.
  • Particularly preferred bisamides are bis-myristoylethylenediamine, Bis-palmitoyl-ethylenediamine, bis-stearoylethylenediamine and mixtures thereof and the corresponding derivatives of hexamethylenediamine.
  • nonionic emulsifiers which are used in emulsions according to the invention especially the alkoxylates, preferably the ethoxylates and / or propoxylates of alcohols, alkylamines, vicinal diols, carboxylic acids and / or carboxamides, the alkyl groups having 8 to 22 carbon atoms, preferably 12 to 18 C-atoms, own, understood.
  • the average degree of alkoxylation of these Compounds is usually from 1 to 10, preferably 2 to 5. You can prepared in known manner by reaction with the corresponding alkylene oxides become.
  • products obtained by alkoxylation of fatty acid alkyl esters having 1 to 4 carbon atoms in the ester part according to the method of the international patent application WO 90/13533 can be produced, come into question.
  • To the candidate alcohol alkoxylates include the ethoxylates and / or propoxylates of linear or branched chain Alcohols having 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms. Suitable are especially the derivatives of fatty alcohols, although also their branched-chain isomers can be used for the preparation of useful alkoxylates.
  • the ethoxylates of primary alcohols with linear dodecyl, tetradecyl, Hexadecyl or Octadecylresten and mixtures thereof are usable Accordingly, in particular the ethoxylates of primary alcohols with linear dodecyl, tetradecyl, Hexadecyl or Octadecylresten and mixtures thereof.
  • Alkoxylates of mono- or polyunsaturated fatty alcohols to which for example, oleyl alcohol, elaidyl alcohol, linoleyl alcohol, linolenyl alcohol, Gadoleyl alcohol and eruca alcohol is possible.
  • esters respectively Partial esters of carboxylic acids of corresponding C chain length with polyols such as glycerol or oligoglycerol can be used.
  • Preferred anionic emulsifiers are Alkali metal salts of alkylbenzenesulfonic acids having 9 to 13 C atoms in the alkyl group, especially sodium dodecylbenzenesulfonate.
  • emulsifiers may be small amounts, optionally up to 4 wt .-%, anionic and / or nonionic cellulose ethers such as carboxymethyl cellulose and / or Hydroxyethylcellulose be included.
  • a homogeneous mixture of foam regulator system and in particular nonionic emulsifier can be beneficial in easier Melting by melting the solid at room temperature, the bisamide in the presence of Paraffins and the emulsifier, expediently with stirring or homogenizing, to reach. If the bisamide is not in substance, but prefabricated in Blending with the paraffin is a heating above the melting point In addition, the musk generally is not required, as it is already at lower temperatures usually forms a solution of the bisamide in paraffin.
  • the Water may have been previously added in particular an anionic emulsifier.
  • the concentration of anionic emulsifier in water is preferably 5 wt .-% to 15 wt .-%.
  • the foam regulator system obtainable in this way is storage-stable at room temperature and can as such, by simply adding to the other components of the agent in liquid detergents and cleaners are used.
  • the foam regulator emulsion according to the invention be used for foam regulation or venting particular aqueous liquid detergent in their Production and / or filling.
  • the entire particulate detergent or cleaner with the defoamer is to be applied, it is preferable to use 0.1% by weight to 5% by weight, in particular 0.25 wt .-% to 3 wt .-% of defoamer on the washing or Detergent particles on.
  • foam regulator granulate does not want to produce the foam regulator active ingredients on the entire Detergent, but on a part of it usually contained solid Components (which are referred to below as support materials) applies and this foam regulator granules then the remaining solid components of Washing or cleaning agent admixed, it is preferable to bring 3 wt .-% to 60 wt .-%, in particular 15 wt .-% to 45 wt .-% of defoamer on.
  • a drying step For example, using conventional fluidized bed dryer to be connected, or you bring the defoamer with simultaneous drying, for example also in a fluidized bed, on. If you use the packaging in particulate form with Aid for the spray-drying of an aqueous slurry containing the Defoamer emulsion and the solid detergent ingredients or Carrier materials contains, wants to perform, apply the above Quantity ranges accordingly.
  • the solid and / or solid-form detergent or cleaning composition ingredients to or on at least one of which the emulsion according to the invention is applied for the production of particulate products include conventional powders prepared by spray-drying aqueous slurries of their ingredients, solid bleaches, in solid form prepared bleach activators, anionic surfactant compounds not prepared by conventional spray drying according to international patent application WO 93/04162 containing more than 80% by weight, in particular more than 90% by weight of alkyl sulfate having alkyl chain lengths in the range of C 12 to C 18 , where Residual consisting essentially of inorganic salts and water, powdery polycarboxylate co-builders, for example, alkali metal citrate, solid inorganic builders, such as zeolite A, zeolite P and crystalline phyllosilicates, and other inorganic salts, such as alkali metal sulfate, Alkalicarbona t, alkali metal bicarbonate and alkali si
  • a used in a preferred variant of the method according to the invention Contains spray-drying product to be acted upon by the foam regulator emulsion preferably 25 wt .-% to 65 wt .-%, in particular 30 wt .-% to 60 wt .-% of inorganic Builder and 7.5 wt% to 40 wt%, especially 10 wt% to 30 wt% Anionic surfactant, in particular synthetic anionic surfactant of the sulphate and / or sulphonate type.
  • the remainder to 100 wt .-% consists of conventional ingredients spray-dried Washing or cleaning agents, in particular water, preferably in amounts up to to 20% by weight, in particular from 8% to 18% by weight, of organic cobuilder, the preferably in amounts of up to 8% by weight, in particular from 3% by weight to 6.5% by weight, Discoloration inhibitors, preferably used in the manufacture of detergents Spray-drying products in amounts of up to 5% by weight, in particular 1.5% by weight to 3 wt .-%, and inorganic water-soluble salts, for example Alkali sulfates and / or carbonates, preferably in amounts of up to 20 wt .-%, in particular from 2 wt .-% to 12 wt .-% are included.
  • solid oxygen-based bleaching agents for example alkali percarbonates or alkali metal perborates present as so-called monohydrates or tetrahydrates can, bleach activators in powder form, for example, after the Process of European Patent EP 0 037 026 produced tetraacetylethylenediamine granules, solid-form, high-active-substance anionic surfactant compounds, for example, one according to the method of international Patent application WO 93/04162 produced alkyl sulfate compound, in granular form present enzymes, for example one according to the method of the international patent application WO 92/11347 produced enzyme extrudate or by the method of German patent application DE 43 29 463 produced Mehrenzymgranulat and / or a in powder form, for example by the process of the German patent application DE 44 08 360, ready-made soil release active ingredient.
  • solid oxygen-based bleaching agents for example alkali percarbonates or alkali metal perborates present as so-called monohydrates or tetra
  • a build-up granulation in a granulation mixer in this way in that an amount of 50 to 100 parts by weight, in particular 60 to 85 parts by weight on inorganic carrier salt, preferably containing alkali metal sulfate, Alkali carbonate and / or alkali bicarbonate, optionally with an amount of up to 5 parts by weight, in particular 1 to 3 parts by weight of an anionic and / or nonionic cellulose ether intensively mixed, with further granulation a lot from 1 to 10 parts by weight, in particular from 2 to 8 parts by weight, of aqueous alkali metal silicate and / or polymer polycarboxylate solution is added, and then 10 parts by weight of the optionally heated to a temperature in the range of 70 ° C to 180 ° C Added foam regulator emulsion.
  • inorganic carrier salt preferably containing alkali metal sulfate, Alkali carbonate and / or alkali bicarbonate
  • an amount of up to 5 parts by weight in particular 1
  • aqueous emulsions E1, E2, E3 and E4 were prepared. The procedure was followed by melting the paraffin wax (or the mixture of paraffin wax and silicone oil) and the Bistearylklareethylendiamid together with the emulsifier I or II by heating to a temperature of about 150 ° C and in cold water ( E1 and E4 ) respectively an aqueous solution of the emulsifier III ( E2 and E3 ) was stirred.
  • composition of the foam regulator emulsions [% by weight] medium E1 E2 E3 E4 paraffin wax 44 44 40 41 silicone oil - - 4.5 3.5 Bistearylklareethylendiamid 6 6 6 6 Emulsifier I 5 5 5 - Emulsifier II - 4 - 7.5 Emulsifier III - 4 5.5 - water on 100
  • the foam regulator emulsions thus obtained were prepared on the basis of the method described in US Pat WO 98/09701 described method in amounts of 30 wt .-% to an inorganic particulate carrier material applied.
  • the foam regulator granules thus obtained were each in an amount of 1 wt .-% to a defoamer particulate detergent added, resulting in washing temperatures of 40 ° C, 60 ° C. and 90 ° C gave a defoamer performance that did not lag behind when used conventional type of defoamer granules produced backlog.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
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  • Detergent Compositions (AREA)

Claims (23)

  1. Emulsion aqueuse régulatrice de la mousse, contenant 16% en poids à 70% en poids de substance active régulatrice de mousse à base de cire de paraffine ou à base de cire de paraffine et d'huile de silicone, 2% en poids à 15% en poids d'émulsifiant non ionique et/ou anionique et ne contenant pas plus de 80% en poids d'eau, la base de cire de paraffine étant une combinaison de cire de paraffine et de bis(amide d'acide gras).
  2. Emulsion aqueuse régulatrice de la mousse selon la revendication 1, contenant 15% en poids à 60% en poids de cire de paraffine ou d'un mélange de cire de paraffine et d'huile de silicone, 1% en poids à 10% en poids de bis(amide d'acide gras) dérivé de diamines en C2 à C7 et d'acides gras en C12 à C22, 2% en poids à 15% en poids d'émulsifiant non ionique et/ou anionique et ne contenant pas plus de 80% en poids d'eau.
  3. Emulsion aqueuse régulatrice de la mousse selon la revendication 1 ou 2, caractérisée en ce qu'elle contient 30% en poids à 50% en poids de cire de paraffine ou d'un mélange de cire de paraffine et d'huile de silicone.
  4. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'elle contient un mélange d'huile de silicone et de cire de paraffine dans un rapport pondéral de 2:1 à 1:100, en particulier de 1:1 à 1:10.
  5. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la cire de paraffine est solide à température ambiante et se trouve sous forme complètement liquide à 100°C.
  6. Emulsion aqueuse régulatrice de la mousse selon la revendication 5, caractérisée en ce que la cire de paraffine présente une proportion de liquide à 40°C d'au moins 50% en poids, en particulier de 55% en poids à 80% en poids, et une proportion de liquide à 60°C d'au moins 90% en poids.
  7. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'elle contient 3% en poids à 8% en poids de bis(amide d'acide gras) dérivé de diamines en C2 à C7 et d'acides gras en C12 à C22.
  8. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'elle contient 10% en poids à 40% en poids, en particulier 15% en poids à 35% en poids d'huile de silicone et 50% en poids à 80% en poids d'eau.
  9. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'elle présente une teneur en huile de silicone dans la plage de 0,1% en poids à 10% en poids, en particulier de 1% en poids à 5% en poids.
  10. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'elle contient 3% en poids à 10% en poids d'émulsifiant non ionique et/ou anionique.
  11. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 10, caractérisée en ce que l'émulsifiant non ionique est choisi parmi les alcoxylates, en particulier les éthoxylates et/ou les propoxylates d'alcools, d'alkylamines, de diols vicinaux et/ou d'amides d'acides carboxyliques, qui présentent des groupes alkyle comprenant 8 à 22 atomes de carbone, de préférence 12 à 18 atomes de carbone, et dont le degré d'alcoxylation moyen est de 1 à 10, en particulier de 2 à 5.
  12. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 10, caractérisée en ce que l'émulsifiant anionique est un sel alcalin des acides alkylbenzènesulfoniques comprenant 9 à 13 atomes de carbone dans le groupe alkyle.
  13. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 12, caractérisée en ce qu'elle ne contient pas plus de 60% en poids, en particulier 20% en poids à 50% en poids d'eau.
  14. Emulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 13, caractérisée en ce qu'elle présente à 60°C une viscosité inférieure à 2500 mPa.s, en particulier dans la plage de 100 mPa.s à 500 mPa.s.
  15. Procédé pour la préparation d'une émulsion aqueuse régulatrice de mousse à base de cire de paraffine selon l'une quelconque des revendications 1 à 14, caractérisé en ce qu'on fond de la cire de paraffine et du bis(amide d'acide gras) en présence de l'émulsifiant par chauffage à des températures dans la plage de 60°C à 150°C, en particulier de 80°C à 100°C, on refroidit le cas échéant à au maximum environ 100°C et on délaye dans l'eau.
  16. Procédé selon la revendication 15, caractérisé en ce qu'on ajoute en plus d'un émulsifiant non ionique un émulsifiant anionique et qu'on ajoute l'émulsifiant anionique non pas dans la masse fondue, mais dans l'eau avant d'y délayer la masse fondue.
  17. Procédé pour la préparation d'une émulsion aqueuse régulatrice de mousse contenant de l'huile de silicone selon l'une quelconque des revendications 1 à 14, caractérisé en ce qu'on mélange l'huile de silicone avec l'émulsifiant non ionique et/ou anionique, on ajoute une partie de la quantité d'eau sous agitation de telle manière qu'il se forme une émulsion du type eau-dans-silicone, on ajoute de l'eau jusqu'à obtenir une inversion de l'émulsion, on agite intensivement et on ajoute ensuite sous agitation le reste de l'eau.
  18. Utilisation d'une émulsion aqueuse régulatrice de la mousse selon l'une quelconque des revendications 1 à 14 ou pouvant être obtenue selon l'une quelconque des revendications 15 à 17 pour la régulation de la mousse de systèmes aqueux ayant tendance à mousser, en particulier de bains d'agents de lavage et de nettoyage.
  19. Utilisation d'une émulsion aqueuse régulatrice de mousse selon l'une quelconque des revendications 1 à 14 ou pouvant être obtenue selon l'une quelconque des revendications 15 à 17 pour la régulation de la mousse ou la désaération, en particulier d'agents de lavage aqueux liquides pendant leur fabrication et/ou leur transvasement.
  20. Utilisation d'une émulsion aqueuse régulatrice de mousse selon l'une quelconque des revendications 1 à 14 ou pouvant être obtenue selon l'une quelconque des revendications 15 à 17 pour la préparation d'agents de lavage ou de nettoyage en forme de particules par pulvérisation sur des granules qui contiennent tous les constituants solides à température ambiante des agents de lavage et de nettoyage ou du moins quelques-uns de ceux-ci.
  21. Procédé pour la préparation de granulats régulateurs de mousse en forme de particules par pulvérisation d'une émulsion aqueuse régulatrice de mousse selon l'une quelconque des revendications 1 à 14 ou pouvant être obtenue selon l'une quelconque des revendications 15 à 17 sur un matériau support solide, suivie le cas échéant d'une étape de séchage.
  22. Procédé pour la préparation de granulats régulateurs de mousse en forme de particules par séchage par pulvérisation d'une suspension aqueuse, qui est obtenue par mélange d'une émulsion aqueuse régulatrice de la mousse selon les revendications 1 à 14 ou pouvant être obtenue selon l'une quelconque des revendications 15 à 17 avec un matériau support solide et le cas échéant de l'eau.
  23. Procédé selon la revendication 21 ou 22, caractérisé en ce que le matériau support présente une combinaison d'hydrogénocarbonate alcalin et de carbonate alcalin, leur rapport pondéral étant de préférence de 99:1 à 10:90, en particulier de 95:5 à 50:50.
EP99965429A 1998-12-11 1999-12-02 Emulsion aqueuse regulatrice de mousse Expired - Lifetime EP1137751B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19857204A DE19857204A1 (de) 1998-12-11 1998-12-11 Wäßrige Schaumregulatoremulsion
DE19857204 1998-12-11
PCT/EP1999/009403 WO2000036063A1 (fr) 1998-12-11 1999-12-02 Emulsion aqueuse regulatrice de mousse

Publications (2)

Publication Number Publication Date
EP1137751A1 EP1137751A1 (fr) 2001-10-04
EP1137751B1 true EP1137751B1 (fr) 2005-03-16

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US (1) US6340662B1 (fr)
EP (1) EP1137751B1 (fr)
DE (2) DE19857204A1 (fr)
ES (1) ES2239477T3 (fr)
WO (1) WO2000036063A1 (fr)

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Also Published As

Publication number Publication date
WO2000036063A1 (fr) 2000-06-22
US6340662B1 (en) 2002-01-22
EP1137751A1 (fr) 2001-10-04
DE19857204A1 (de) 2000-06-15
ES2239477T3 (es) 2005-09-16
DE59911774D1 (de) 2005-04-21

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