EP0301884B1 - Flüssige Reinigungsmittelzusammensetzungen - Google Patents

Flüssige Reinigungsmittelzusammensetzungen Download PDF

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Publication number
EP0301884B1
EP0301884B1 EP19880307008 EP88307008A EP0301884B1 EP 0301884 B1 EP0301884 B1 EP 0301884B1 EP 19880307008 EP19880307008 EP 19880307008 EP 88307008 A EP88307008 A EP 88307008A EP 0301884 B1 EP0301884 B1 EP 0301884B1
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EP
European Patent Office
Prior art keywords
weight
composition according
composition
surfactant system
surfactant
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EP19880307008
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English (en)
French (fr)
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EP0301884A1 (de
Inventor
Mario Bulfari
Johannes Cornelis Van De Pas
Anthony John Roberts
John Mark Saunders
Bryan Cecil Smith
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Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase

Definitions

  • This invention relates to aqueous liquid detergent compositions for washing fabrics.
  • the present invention now provides an aqueous liquid detergent composition with a pH of 12 or less at 1% weight concentration in water and a viscosity no greater than 1.5 Pas at a shear rate of 21s ⁇ 1, comprising at least 1% by weight of dissolved electrolyte and at least 1% by weight of a surfactant system which consists of one or more detergent surfactants comprising a nonionic detergent surfactant, which surfactant system somewhere between 0.0001% and 5% weight concentration alone in water has a cloudy phase somewhere in the temperature range of 40°C down to the freezing point of the surfactant system at that concentration in water, wherein the surfactant system in the composition is in the form of a lamellar phase, and the composition comprises 55.1% by weight or less water.
  • the detergent surfactants which make up the surfactant system maybe selected from known anionic, nonionic, zwitterionic and amphoteric detergent surfactants, for example as chosen from the classes, sub-classes and specific examples of such detergent surfactants described in Surface Active Agents Vol. I by Schwartz and Perry, Interscience (1949) and Vol II by Schwartz, Perry and Berch, Interscience (1958), in the current edition of "McCutcheon's Emulsifiers & Detergents" published by the McCutcheon division of Manufacturing Confectioners Company or in ′Tensid-Taschenbuch′, H.Stache, 2nd ed., Carl Hanser Verlag, München & Wien, 1981.
  • An alternative aspect of the present invention provides an aqueous liquid detergent composition with a pH of 12 or less at 1% weight concentration in water and a viscosity no greater than 1.5 Pas at a shear rate of 21s ⁇ 1, comprising at least 1% by weight of dissolved electrolyte and at least 1% by weight of a surfactant system which consists of one or more detergent surfactants including a nonionic detergent surfactant which somewhere between 0.0001% and 5% weight concentration alone in water has a cloudy phase somewhere in the temperature range of 40°C down to the freezing point of the nonionic detergent surfactant at that concentration in water, wherein the surfactant system in the composition is in the form of a lamellar phase, and the composition comprises a protéolytic enzyme.
  • the aqueous concentration at which the cloudy phase exists at one or more temperatures in the range of 40°C dawn to the freezing point of the surfactant system in distilled water may be a specific concentration, or more often, will span a range of such concentrations. This concentration is preferably 3% and/or 1% and/or 0.1% and/or 0.01% by weight.
  • the surfactant system or the nonionic detergent surfactant When regarded from the point of view of a fixed relevant aqueous concentration, the surfactant system or the nonionic detergent surfactant, as appropriate, has a cloudy phase somewhere in the temperature range from 40°C, preferably 15°C, most preferably 10°C down to the freezing point in distilled water at that concentration. In practice, this means that it has a cloud point of not more than 40°C, preferably 15°C, most preferably 10°C. In other words, it is clear from the freezing point up to the cloud point which is the onset of turbidity, i.e. at 40°C or less. In fact, many will be cloudy right down to the freezing point of the composition.
  • cloudy phase includes ′cloud phase′ and all other turbid phases e.g. lamellar phase, as will be known to those skilled in the art.
  • Cloud phase and cloud point have the meanings ascribed to them in Surface Active Ethylene Oxide Adducts by N. Schonfeldt, Pergamon Press 1969, pp 145 to 154.
  • the cloud point of a surfactant material is the temperature at which association between the surfactant and water molecules through hydrogen bonding breaks down, leading to the separation of surfactant rich and water rich phases and a consequential increase in turbidity or cloudiness.
  • the cloud point correlates approximately to the hydrophilic ⁇ lipophilic balance (HLB) of the surfactant system.
  • HLB hydrophilic ⁇ lipophilic balance
  • the surfactant system, or one nonionic detergent surfactant which is part of that system has an HLB equal to or less than 10.5, especially less than 10.0 or even below 9.5.
  • the HLB should preferably be above 6.0, most preferably above 7.5.
  • nonionic detergent surfactants which may be used include in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are alkyl (C6-C22) phenols-ethylene oxide condensates, the condensation products of aliphatic (C8-C18) primary or secondary linear or branched alcohols with ethylene oxide, and products made by condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine.
  • Other so-called nonionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulphoxides.
  • alkylene oxides adducts of fatty materials are used as the nonionic detergent compounds
  • the number of alkylene oxide groups per molecule has a considerable effect upon the cloud point as indicated by the Schonfeldt reference mentioned above.
  • the chain length and nature of the fatty material is also influential, and thus the preferred number of alkylene oxide groups per molecule depends upon the nature and chain length of the fatty material.
  • the adduct having 3 ethylene oxide (EO) groups per molecule has a cloud point of less than 0°C and is therefore suitable for use in the present invention.
  • a similar detergent surfactant having 7 ethylene oxide groups per molecule has a cloud point of about 48°C and is therefore unsuitable. Further ethoxylation raises the cloud point still higher.
  • the similar detergent surfactant with 11 ethylene oxide groups per molecule has a cloud point higher than 80°C.
  • the required cloud point can be achieved if the average degree of ethoxylation per molecule is less than 56% by weight and/or the average number of EO groups per molecule is six or less, typically about 3.
  • nonionic detergent surfactants are known per se from a variety of references such as GB-A-1241754 or US 4537708.
  • the former reference whilst mentioning the possibility of liquids, discloses no example of a stable, pourable liquid.
  • the latter discloses slurries containing sodium tripolyphosphate and at least 13% by weight of detergent surfactants. Such slurries have unacceptably high viscosities in the context of the present invention.
  • UK patent specification GB-A-2153839 discloses examples of aqueous liquid detergent compositions which contain some low-detergency, foam boosting surfactants of the long-chain ethanolamide or diethanolamide kind which are not detergent surfactants as defined herein.
  • nonionic detergent surfactants will not necessarily cause loss of cloudiness of the whole system, under the relevant conditions, for example because of non-ideal mixing of components in the product, which is a condition which can remain even after transport or prolonged storage, or because of the properties of the surfactant system as a whole.
  • the anionic detergent surfactants are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher (C8-C18) alcohols produced for example from tallow or coconut oil, sodium and potassium alkyl (C9-C20) benzene sulphonates, particularly sodium linear secondary alkyl (C10-C15) benzene sulphonates; sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum; sodium coconut oil fatty monoglyceride sulphates and sulphonates; sodium and potassium salts of sulphuric acid esters of higher (C8-C18) fatty alcohol-alkylene oxide, particularly ethylene oxide, reaction products; the reaction products of fatty acids such as coconut fatty acids esterified with isethionic acid and neutralised with sodium hydroxide; alkane monosulphonates such as those derived by reacting alpha-olefin
  • an alkali metal soap of a fatty acid especially a soap of an acid having from 12 to 18 carbon atoms, for example oleic acid, ricinoleic acid, and fatty acids derived from castor oil, rapeseed oil, groundnut oil, coconut oil, palmkernel oil or mixtures thereof.
  • the sodium or potassium soaps of these acids can be used, the potassium soaps being preferred.
  • the requirement of a pH of 12 or less at 1% aqueous dilution is to exclude a number of disadvantages.
  • a major benefit of many compositions according to the present invention is a fabric softening effect.
  • Very alkaline wash solutions tend to have a harshening effect.
  • the present invention also requires the compositions to have a viscosity no greater than 1.5 Pas at a shear rate of 21s ⁇ 1. However, at the latter shear rate, many practical embodiments will have a viscosity no greater than 1.25 Pas, preferably 1.0 Pas, 900 mPas, or even 850 mPas.
  • This low viscosity may be achieved by incorporating sufficient hydrotrope in the composition to render the system isotropic.
  • Hydrotropes are water soluble compounds which serve to increase the solubility of surfactants in aqueous solution and are well known in the art. Typical examples are lower alkanols such as ethanol, alkanolamines, e.g. triethanolamine, salts of aralkyl sulphonates and those with ureum types of molecule.
  • the composition as a whole is anisotropic (structured) and comprises a lamellar phase formed by the surfactant system, preferably as lamellar droplets dispersed in an aqueous continuous phase which contains the dissolved electrolyte.
  • the composition should be formulated as described hereinbelow.
  • the composition either includes at least one special viscosity-reducing polymer (as defined hereinbelow) and/or at least one of the following three rules must be applied.
  • the first rule is that the surfactant system also should contain an anionic detergent surfactant and that the anionic: nonionic weight ratio should be 6: 1 or less of the anionic, but most frequently, 4: 1 or less.
  • EP-A-38,101 describes structured liquids based on a blend of anionic and nonionic surfactants with an alkali metal soap incorporated to ensure stability.
  • many of those compositions of the present invention which are structured can be formulated stably without soap, for example where the ratio of anionic to nonionic surfactants is from 6: 1 to 1: 2, preferably from 4: 1 to 1: 1, especially from 3: 1 to 4: 3.
  • soap when soap is included, stability can be obtained for a greater range of anionic/nonionic blends, than with the prior art compositions.
  • the anionics may (for example) be as described in the aforementioned EP-A-38,101.
  • the second rule is that the weight ratio of the surfactant system to water is 5: 1 or less of the surfactant system.
  • any suspended solids should contribute no more than 15%, preferably no more than 10% by volume of the total composition.
  • the special viscosity reducing polymer(s) can be selected from one of two classes, or from both.
  • the first class of special viscosity reducing polymers comprises those polymers which would be only partly dissolved in the aqueous continuous phase as described in our UK patent application no. 8718216 (corresponding to EP 301882). allows a viscosity reduction (due to the polymer which is dissolved) whilst incorporating a sufficiently high amount to achieve a secondary benefit, especially building, because the part which is not dissolved does not bring about the instabilty that would occur if substantially all were dissolved.
  • partly-dissolved polymers include many of the polymer and co-polymers salts already known as detergency builders. For example, may be used (including building and non-building polymers) polyethylene glycols, polyacrylates, polymaleates, polysugars, polysugarsulphonates and co-polymers of any of these.
  • the partly dissolved polymer comprises a co-polymer which includes an alkali metal salt of a polyacrylic, polymethacrylic or maleic acid or anhydride.
  • compositions with these co-polymers have a pH of above 8.0.
  • the amount of viscosity reducing polymer can vary widely according to the formulation of the rest of the composition. However, typical amounts are from 0.5 to 4.5% by weight.
  • the second class of special viscosity reducing polymers comprises those polymers which are substantially totally soluble in the aqueous phase and have an electrolyte resistance of more than 5 grams sodium nitriolotriacetate in 100 ml of a 5% by weight aqueous solution of the polymer, said soluble polymer also having a vapour pressure in 20% aqueous solution, equal to or less than the vapour pressure of a reference 2% by weight or greater aqueous solution of polyethylene glycol having an average molecular weight of 6000; said soluble polymer having a molecular weight of at least 1000.
  • Use of such polymers is generally described in our UK patent application No. 8718217 (corresponding to EP 301883).
  • the incorporation of the soluble polymer permits formulation with improved stability at the same viscosity (relative to the composition without the soluble polymer) or lower viscosity with the same stability.
  • the soluble polymer can also reduce viscosity drift, even when it also brings about a viscosity reduction.
  • the soluble polymer is especially preferred to incorporate with a partly-dissolved polymer which has a large insoluble component. That is because although the building capacity of the partly dissolved polymer will be good (since relatively high quantities can be stably incorporated), the viscosity reduction will not be optimum (since,little will be dissolved). Thus, the soluble polymer can usefully function to reduce the viscosity further, to an ideal level.
  • the soluble polymer can, for example, be incorporated at from 0.05 to 20% by weight, although usually, from 0.1 to 2.5% by weight of the total composition is sufficient, and especially from 0.2 to 1.5% by weight. Often, levels above these can cause instability.
  • a large number of different polymers may be used as such a soluble polymer, provided the electrolyte resistance and vapour pressure requirements are met.
  • the former is measured as the amount of sodium nitrilotriacetate (NaNTA) solution necessary to reach the cloud point of 100 ml of a 5% solution of the polymer in water at 25°C, with the system adjusted to neutral pH, i.e. about 7. This is preferably effected using sodium hydroxide.
  • the electrolyte resistance is 10 g NaNTA, especially 15 g.
  • the latter indicates a vapour pressure low enough to have sufficient water binding capability, as generally explained in the applicants' specification GB-A-2053249.
  • the measurement is effected with a reference solution at 10% by weight aqueous concentration, especially 18%.
  • Our copending application 883070096 (EP-A-0301885) relates to liquid abrasive compositions.
  • Typical classes of polymers which may be used as the soluble polymer include polyethylene glycols, Dextran, Dextran sulphonates, polyacrylates and polyacrylate/maleic acid co-polymers. Whether a particular polymer is partly soluble or substantially totally soluble will depend on the formulation of the remainder of the composition, but in particular on the type and amount of dissolved electrolyte.
  • the soluble polymer must have an average molecular weight of at least 1000 but a minimum average molecular weight of 2000 is preferred.
  • compositions of the present invention may also contain other ingredients, especially ingredients useful in the washing of fabrics.
  • a fully formulated fabric washing product may be so obtained.
  • the electrolyte is preferably at least 10% by weight of the composition, most preferably at least 10% of the composition being electrolyte which is dissolved.
  • the electrolyte may be partially or totally, a water-soluble builder salt. Where all or part of the electrolyte is not a builder salt, then it will simply be another water soluble electrolyte. In the case of systems which suspend solids, these solids will generally be excess of water soluble builder salt beyond the solubility limit of the dissolved builder salt acting as electrolyte (although of course some or all of the electrolyte may not be dissolved builder salt). It is possible to suspend builders which are not water soluble and so cannot constitute all or part of the electrolyte. A prime example of these builders comprises the aluminosilicates.
  • electrolyte/builder material the total amount of electrolyte and builder, although it will be appreciated from the previous paragraph that some or all of the electrolyte can be builder and vice versa .
  • electrolyte/builder material the total amount of these substances will hereinafter be referred to under the general term electrolyte/builder material.
  • the preferred amounts of both detergent active material and electrolyte/builder material will differ between those compositions which are structured prior to dilution (whether or not solids are suspended) and those (hydrotroped) systems which are unstructured pre-dilution.
  • the total amount of detergent active material in the structured liquids is preferably from 2% to 50% by weight of the composition, most preferably from 5% to 40%, especially from 7.5% to 30% and typically from 10% to 20%.
  • the amount is preferably from 5% to 70%, most preferably from 10% to 65%, especially from 15% to 60% and typically from 20% to 50%.
  • the total amount of electrolyte/builder material is preferably from 1% to 70% by weight of the composition, most preferably from 2% to 50%, especially from 5% to 40% and typically from 10% to 30%.
  • compositions of the invention contain a detergency builder material this may be any material capable of reducing the level of free calcium ions in the wash liquor and will preferably provide the composition with other beneficial properties such as the generation of an alkaline pH, the suspension of soil removed from the fabric and the dispersion of any fabric softening clay material which may be included in the composition.
  • Examples of phosphorus-containing inorganic detergency builders when present, include the water-soluble salts, especially alkaline metal pyrophosphates, orthophosphates, polyphosphates and phosphonates.
  • Specific examples of inorganic phosphate builders include sodium and potassium tripolyphosphates, phosphates and hexametaphosphates.
  • non-phosphorus-containing inorganic detergency builders when present, include water-soluble alkali metal carbonates, bicarbonates, silicates and crystalline and amorphous alumino silicates. Specific examples include sodium carbonate (with or without calcite seeds), potassium carbonate, sodium and potassium bicarbonates and silicates.
  • organic detergency builders when present, include the alkaline metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates, polyacetyl carboxylates and polyhydroxsulphonates. Specific examples include sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediaminetetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, melitic acid, benzene polycarboxylic acids and citric acid.
  • a number of optional conventional ingredients may also be present.
  • conventional ingredients which may be present in the composition include the lather boosters (foam-boosting surfactants) such as alkanolamides, particularly the mono- and di-ethanolamides derived from palm kernel fatty acids and coconut fatty acids, lather depressants, oxygen-releasing bleaching agents such as sodium perborate and sodium percarbonate, peracid bleach precursors, chlorine-releasing bleaching agents such as trichloroisocyanuric acid, inorganic salts such as sodium sulphate, and, usually present in very minor amounts, fluorescent agents, perfumes, enzymes such as lipases (e.g. Lipolase (Trade Mark) ex Novo), proteases and amylases, germicides and colourants. Fabric softening clay materials may also be included to boost the softening effect produced by the present invention.
  • lather boosters such as alkanolamides, particularly the mono- and di-ethanolamides derived from palm kernel fatty acids and coconut fatty
  • Concentrated systems comprising the detergent surfactants (with predetermined ratios) were prepared at a concentration of approximately between 20% and 40% w/w in water. From this sample, 50 grams were taken and diluted with water whilst stirring, until a clear solution was obtained. The water must be added slowly because it may take some time for the detergent active material to disintegrate/dissolve. There may be a point at the onset of clarity when turbidity is no longer visible to the unaided eye but ordered phases still just exist. In that case, the precise point where a truly clear solution is first created may be determined by detecting the point where streaming birefringence disappears, or by any other electronic detection system for detecting turbidity, e.g. scattering measurements.
  • compositions 3-7 and 10, 11 are all in accordance with the present invention.
  • compositions of Example 2 were tested by mechanical means for assessing softening.
  • Compositions 2.2 and 2.3 according to the present invention gave superior softening performance relative to reference composition 2.1.
  • Example 3 Isotropic Composition with Electrolyte and Minors
  • composition according to the invention gave a cloudy phase on dilution to low concentrations in water at 5°C (but not at 20°C).
  • a similar reference composition with C13 ⁇ 15 alcohol 7EO in place of the 3EO nonionic gave no cloudy phase even in water/ice mixture.
  • composition according to the invention gives fabric softening performance comparable to compositions 2.2 and 2.3 in Example 2.

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Claims (32)

1. Wässrige, flüssige Detergenszusammensetzung mit einem pH von 12 oder weniger bei 1% Gewichtskonzentration in Wasser und einer Viskosität nicht größer als 1,5 Pas bei einer Schergeschwindigkeit von 21 s⁻¹, wobei die Zusammensetzung wenigstens 1 Gew.-% gelösten Elektrolyt und wenigstens 1 Gew.-% eines oberflächenaktiven Systems umfaßt, das aus einem oder mehreren Detergensoberflächenaktiven Materialien besteht, umfassend ein nicht-ionisches Detergens-oberflächenaktives Material, wobei das oberflächenaktive System irgendwo zwischen 0,0001% und 5% Gewichtskonzentration allein in Wasser eine trübe Phase irgendwo im Temperaturbereich von 40°C abwärts zum Gefrierpunkt des oberflächenaktiven Systems bei der Konzentration in Wasser aufweist, worin das oberflächenaktive System in der Zusammensetzung in Form einer lamellaren Phase vorliegt und die Zusammensetzung 55,1 Gew.-% oder weniger Wasser umfaßt.
2. Wässrige, flüssige Detergenszusammensetzung mit einem pH von 12 oder weniger bei 1% Gewichtskonzentration in Wasser und einer Viskosität nicht größer als 1,5 Pas bei einer Schergeschwindigkeit von 21 s⁻¹, wobei die Zusammensetzung wenigstens 1 Gew.-% gelösten Elektrolyt und wenigstens 1 Gew.-% eines oberflächenaktiven Systems umfaßt, das aus einem oder mehreren Detergensoberflächenaktiven Materialien besteht, umfassend ein nicht-ionisches Detergens-oberflächenaktives Material, wobei das oberflächenaktive System irgendwo zwischen 0,0001% und 5% Gewichtskonzentration allein in Wasser eine trübe Phase irgendwo im Temperaturbereich von 40°C abwärts zum Gefrierpunkt des oberflächenaktiven Systems bei der Konzentration in Wasser aufweist, worin das oberflächenaktive System in der Zusammensetzung in Form einer lamellaren Phase vorliegt und die Zusammensetzung ein proteolytisches Enzym umfaßt.
3. Wässrige, flüssige Detergenszusammensetzung nach Anspruch 2, die 0,5 Gew.-% oder mehr proteolytisches Enzym umfaßt.
4. Zusammensetzung nach den Ansprüchen 1-3, worin das oberflächenaktive System ein nicht-ionisches Detergens oberflächenaktives Material umfaßt, das einen HLB von gleich oder weniger als 10,5 aufweist.
5. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin das oberflächenaktive System ein nicht-ionisches Detergens oberflächenaktives Material umfaßt, das einen HLB von weniger als 9,5 aufweist.
6. Zusammensetzung nach einem der Ansprüche 1 bis 5, worin das oberflächenaktive System ein nicht-ionisches Detergens oberflächenaktives Material umfaßt, das einen HLB größer als 7,5 aufweist.
7. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin das oberflächenaktive System ein nicht-ionisches Detergens oberflächenaktives Material umfaßt, das ein ethoxylierter Fettalkohol mit einem durchschnittlichen Ethoxylierungsgrad von weniger als 56 Gew.-% aufweist.
8. Zusammensetzung nach Anspruch 7, worin das nichtionische Detergens oberflächenaktive Material ein ethoxylierter Fettalkohol mit durschnittlich sechs oder weniger Ethoxygruppen pro Molekül ist.
9. Zusammensetzung nach Anspruch 8, worin die Anzahl von Ethoxygruppen etwa drei ist.
10. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin die Konzentration, bei der die trübe Phase besteht, 3 Gew.-% beträgt.
11. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin die Konzentration, bei der die trübe Phase besteht, 1 Gew.-% beträgt.
12. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin die Konzentration, bei der die trübe Phase besteht, 0,1 Gew.-% beträgt.
13. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin die Konzentration, bei der die trübe Phase besteht 0,01 Gew.-% beträgt.
14. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin der Trübungspunkt des oberflächenaktiven Systems nicht mehr als 15°C beträgt.
15. Zusammensetzung nach Anspruch 14, worin der Trübungspunkt nicht mehr als 10°C beträgt.
16. Zusammensetzung nach einem der vorhergehenden Ansprüche, die eine Viskosität von 1,25 Pas oder weniger bei einer Schergeschwindigkeit von 21 s⁻¹ aufweist.
17. Zusammensetzung nach Anspruch 16, worin die Viskosität 1,0 Pas oder weniger beträgt.
18. Zusammensetzung nach Anspruch 17, worin die Viskosität 450 mPas oder weniger beträgt.
19. Zusammensetzung nach einem der vorhergehenden Ansprüche, die weiter genügend Hydrotrop umfaßt, um die Zusammensetzung isotrop zu machen.
20. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin die lamellare Phase lamellare Tröpfchen umfaßt, die in einer wässrigen kontinuierlichen Phase, die den gelösten Elektrolyten enthält, dispergiert sind.
21. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin die Zusammensetzung zur Suspendierung von teilchenförmigen Feststoffen fähig ist.
22. Zusammensetzung nach einem der vorhergehenden Ansprüche, die weiter teilchenförmige Feststoffe in Suspension umfaßt.
23. Zusammensetzung nach Anspruch 22, worin die suspendierten Feststoffe 15 Vol.-% oder weniger der Gesamtzusammensetzung darstellen.
24. Zusammensetzung nach Anspruch 23, worin die suspendierten Feststoffe 10 Vol.-% oder weniger der Gesamtzusammensetzung darstellen.
25. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin das oberflächenaktive System sowohl anionische als auch nicht-ionische Detergens oberflächenaktive Materialien in einem anionischen zu nicht-ionischen Gewichtsverhältnis von 6: 1 oder weniger des anionischen Materials umfaßt.
26. Zusammensetzung nach Anspruch 25, worin das Verhältnis 4: 1 oder weniger des anionischen Materials umfaßt.
27. Zusammensetzung nach einem der vorhergehenden Ansprüche, worin das Gewichtsverhältnis des oberflächenaktiven Systems zu Wasser 5: 1 oder weniger des oberflächenaktiven Systems beträgt.
28. Zusammensetzung nach einem der vorhergehenden Ansprüche, die wenigstens 10 Gew.-% Elektrolyt umfaßt.
29. Zusammensetzung nach einem der vorhergehenden Ansprüche, die wenigstens 10 Gew.-% Elektrolyt umfaßt, der gelöst ist.
30. Zusammensetzung nach einem der vorhergehenden Ansprüche, die weiter ein Fett-mono- oder diethanolamid Schaumverstärker oberflächenaktives Material umfaßt.
31. Verfahren zum Waschen von Textilien, das das In-Kontakt-Bringen der Textilien mit einer 5 Gew.-% oder niedrigeren wässrigen Waschlösung einer wässrigen, flüssigen Detergenszusammensetzung umfaßt, wobei die wässrige, flüssige Detergenszusammensetzung einen pH von 12 oder weniger bei 1% Gewichtskonzentration in Wasser und eine Viskosität nicht größer als 1,5 Pas bei einer Schergeschwindigkeit von 21 s⁻¹ aufweist, wobei die Zusammensetzung wenigstens 1 Gew.-% gelösten Elektrolyt und wenigstens 1 Gew-.% eines oberflächenaktiven Systems umfaßt, das aus einem oder mehreren Detergensoberflächenaktiven Materialien besteht, umfassend ein nicht-ionisches Detergens-oberflächenaktives Material, wobei das oberflächenaktive System irgendwo zwischen 0,0001% und 5% Gewichtskonzentration allein in Wasser eine trübe Phase irgendwo im Temperaturbereich von 40°C abwärts zum Gefrierpunkt des oberflächenaktiven Systems bei der Konzentration in Wasser aufweist, worin das oberflächenaktive System in der Zusammensetzung in Form einer lamellaren Phase vorliegt.
32. Verwendung von wenigstens 1 Gew.-% eines oberflächenaktiven Systems, das aus einem oder mehreren Detergens-oberflächenaktiven Materialien besteht, umfassend ein nicht-ionisches Detergensoberflächenaktives Material, wobei das oberflächenaktive System irgendwo zwischen 0,0001% und 5% Gewichtskonzentration allein in Wasser eine trübe Phase irgendwo im Temperaturbereich von 40°C abwärts zum Gefrierpunkt des oberflächenaktiven Systems bei der Konzentration in Wasser aufweist, als Weichmacherbestandteil in einer wässrigen, flüssigen Detergenszusammensetzung, wobei die wässrige flüssige Detergenszusammensetzung wenigstens 1 Gew.-% gelösten Elektrolyt umfaßt und einen pH von 12 oder weniger bei 1% Gewichtskonzentration in Wasser und eine Viskosität nicht größer als 1,5 Pas bei einer Schergeschwindigkeit von 21 s⁻¹ aufweist.
EP19880307008 1987-07-31 1988-07-29 Flüssige Reinigungsmittelzusammensetzungen Expired EP0301884B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878718215A GB8718215D0 (en) 1987-07-31 1987-07-31 Liquid detergent compositions
GB8718215 1987-07-31

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EP0301884A1 EP0301884A1 (de) 1989-02-01
EP0301884B1 true EP0301884B1 (de) 1992-01-02

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EP (1) EP0301884B1 (de)
DE (1) DE3867361D1 (de)
ES (1) ES2038761T3 (de)
GB (1) GB8718215D0 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8914602D0 (en) * 1989-06-26 1989-08-16 Unilever Plc Liquid detergent composition
ES2066216T5 (es) * 1989-09-13 1999-04-01 Unilever Nv Detergentes liquidos.
GB8924479D0 (en) * 1989-10-31 1989-12-20 Unilever Plc Detergent compositions
ATE145424T1 (de) * 1989-11-30 1996-12-15 Clorox Co Stabiles wässeriges oxidationswaschmittel
GB8927361D0 (en) * 1989-12-04 1990-01-31 Unilever Plc Liquid detergents
MA22118A1 (fr) * 1990-04-10 1991-12-31 Huntsman Internat Llc Etat De Composition detergente liquide versable a concentration elevee en tensioactifs
US6194364B1 (en) 1996-09-23 2001-02-27 The Procter & Gamble Company Liquid personal cleansing compositions which contain soluble oils and soluble synthetic surfactants

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1439308A (fr) * 1964-04-24 1966-05-20 Unilever Nv Compositions détergentes liquides
GB1241754A (en) * 1968-04-12 1971-08-04 Unilever Ltd Detergent compositions
GB1495145A (en) * 1974-04-11 1977-12-14 Procter & Gamble Controlled sudsing detergent compositions
GB1527141A (en) * 1976-01-06 1978-10-04 Procter & Gamble Liquid detergent composition

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ES2038761T3 (es) 1993-08-01
DE3867361D1 (de) 1992-02-13
GB8718215D0 (en) 1987-09-09
EP0301884A1 (de) 1989-02-01

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