EP0359308A2 - Compositions détergentes liquides - Google Patents

Compositions détergentes liquides Download PDF

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Publication number
EP0359308A2
EP0359308A2 EP19890202220 EP89202220A EP0359308A2 EP 0359308 A2 EP0359308 A2 EP 0359308A2 EP 19890202220 EP19890202220 EP 19890202220 EP 89202220 A EP89202220 A EP 89202220A EP 0359308 A2 EP0359308 A2 EP 0359308A2
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Prior art keywords
composition
electrolyte
surfactant
weight
feature
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German (de)
English (en)
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EP0359308B1 (fr
EP0359308A3 (fr
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David Machin
Johannes Cornelis Van De Pas
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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

  • the present invention is concerned with structured liquid detergent concentrates which comprise detergent active material and an aqueous medium containing dissolved electrolyte material.
  • structured liquids can be 'internally structured' whereby the structure is formed by primary ingredients and/or they can be structured by secondary additives, such as certain cross-linked polyacrylates, or clays, which can be added as 'external structurants' to a composition.
  • External structuring is usually used for the purpose of suspending solid particles.
  • Internal structuring is usually used to suspend particles and/or to endow properties such as consumer preferred flow properties and/or turbid appearance.
  • the most common suspended particulate solids are detergency builders and abrasive particles. Examples of internally structured liquids without suspended solids are given in US patent 4 244 840 whilst examples where solid particles are suspended are disclosed in specifications EP-A-160 342; EP-A-38 101; EP-A-104 452 and also in the aforementioned US 4 244 840.
  • a surfactant structuring system in a liquid may be detected by means known to those skilled in the art for example, optical techniques, various rheometrical measurements, x-ray or neutron diffraction, and sometimes, electron microscopy.
  • lamellar dispersion One common type of internal surfactant structure is sometimes referred to as a dispersion of lamellar droplets (lamellar dispersion) These droplets consist of an onion-like configuration of concentric bilayers of surfactant molecules, between which is trapped water or electrolyte solution (aqueous phase). Systems in which such droplets are close-packed provide a very desirable combination of physical stability and solid-suspending properties with useful flow properties.
  • This volume fraction also endows useful solid suspending properties. Conductivity measurements are known to provide a useful way of measuring the volume fraction, when compared with the conductivity of the continuous phase.
  • Figure 1 shows a plot of viscosity against lamel]ar phase volume fraction for a typical composition of known kind:- wt% Surfactants* 20 Na formate 5 or 7.5 Na citrate 2aq 10 Borax 3.5 Tinopal CBS-X 0.1 Perfume 0.15 Water balance * NaDoBS/LES/C 12-13 E 6.5 See example 1 for definition of surfactant terminology.
  • composition is formulated with at least any two of the following features (i) (ii) and (iii):-
  • compositions containing a non-network forming phase supported in an internally or externally structured suspending system are disclosed in our unpublished UK patent application no. EP 328 176.
  • Those compositions may comprise surfactant material having an SOR of 4.0 or greater.
  • electrolyte means any inorganic or organic salt which is capable of ionising in aqueous solution.
  • the electrolyte may be dissolved in the compositions of the present invention and/or it may be present as suspended solid particles. In the great majority of cases where solid particles are suspended by an internal structure form. Usually, the electrolyte will have another function, most often as a detergency builder, although it is possible to use electrolytes having no other role than to bring about internal structuring. Whether the composition is only internally structured and/or it contains an external structuring system, according to the particular ingredients and sometimes, the order of mixing, it is possible to have the same electrolyte in solution and as suspended solids.
  • Either or both of the dissolved and suspended electrolyte material may be a single electrolyte or a mixture of different electrolytes and in any event, can be the same or different from one another.
  • the electrolyte material in suspension will be the same as that in solution, being an excess of same beyond the solubility limit. It is also possible to suspend particulate solids which are functional ingredients but which are insoluble in water and therefore not electrolytes, for example insoluble abrasives such as calcite, or aluminosilicate builders.
  • a typical definition of a relatively insoluble electrolyte is that in the absence of a solubilising electrolyte, the relatively insoluble electrolyte in the product is for more than 20% present in undissolved form at ambient tempereature.
  • a solubilising electrolyte is any electrolyte which decreases the amount of undissolved relatively insoluble electrolyte at room temperature, preferably the decrease of the amount of undissolved electrolyte at a weight ratio of solubilising electrolyte to relatively insoluble electrolyte of 1:4 at ambient temperature is more than 5%, preferably more than 10% based on the relatively insoluble electrolyte.
  • An example of a relatively insoluble electrolyte and a solubilising electrolyte therefor is a sodium salt such as sodium tripolyphosphate, in combination with a water-soluble potassium and/or ammonium salt to promote solubility of the latter.
  • a sodium salt such as sodium tripolyphosphate
  • a water-soluble potassium and/or ammonium salt to promote solubility of the latter.
  • potassium and/or ammonium salts are suitable for this purpose, for example carbonates, bicarbonates, sesqui­carbonates condensed phosphates, orthophosphates, pyrophosphates, etc.
  • Non-functional salts of simple anions like sulphate and chloride may also be used.
  • the potassium and/or ammonium salts of many organic anions are also suitable, such as alkyl carboxylates and anions corresponding to many organic detergency builders.
  • solubilising electrolyte is present to ensure that substantially all of the relatively insoluble electrolyte is dissolved.
  • the solubilising electrolyte material and/or the relatively insoluble electrolyte material may independently be single electrolytes or electrolyte mixtures. Typical weight ratios of solubilising electrolyte material to relatively insoluble electrolyte material are from 0.05:1 to 1:1, preferably from 0.1:1 to 0.5:1.
  • 'stabilising surfactants can be identified using a test of the general kind referred to above, provided that it is framed in a suitable manner, provided that one defines an appropriate threshold for deciding whether a particular surfactant passes the test and provided one also ensures that the composition containing the stabilising surfactant gives a certain result upon centrifugation. This provides the advantage that the surfactants may be screened for use in novel structured detergent liquids.
  • the test herein prescribed for electrolyte tolerance is termed the measurement of salting-out resistance.
  • 200ml is prepared of a 5% by weight aqueous solution of the surfactant in question.
  • Trisodium nitrilotriacetate (NTA) is added at room temperature (ca 25°C) until phase separation, as observed by the onset of cloudiness, occurs.
  • the abbreviation SOR will be used for salting-out resistance.
  • the stabilising surfactants for use in the present invention must have an SOR (as hereinbefore defined) of at least 4.0, preferably at least 5.0 or 5.25.
  • SOR as hereinbefore defined
  • examples of such surfactants with SOR values in the range 4.0 to 6.0 are polyalkoxylated alkyl carboxylates described for use in structured liquid detergents in European Patent Specification EP-A-178,006, although not every single such surfactant disclosed in that document meets the minimum SOR requirement of 4.0.
  • Other surfactants of the latter chemical type but having SOR values up to about 5.2 are described as components of unstructured liquid detergents in UK Patent Specification GB 1 225 218.
  • a stabilising surfactant with an SOR of at least 6.0, most preferably at least 6.4.
  • those stabilising surfactants having an SOR of at least 9.0.
  • the stabilising surfactant should have an average alkyl chain length greater than 8 carbon atoms.
  • Some preferred classes of stabilising surfactants are :- alkyl amine oxides; alkyl polyalkoxylated carboxylates; alkyl polyalkoxylated phosphates; alkyl polyalkoxylated sulphosuccinates; dialkyl diphenyloxide disulphonates; and alkyl polysaccharides (sometimes called alkyl polyglucosides or polyglycosides); selected as those which have a salting out resistance of at least 4.0.
  • stabilising surfactants for example the alkyl polysaccharides described in European patent specification nos. EP-A-70 074; 70 075; 70 076; 70 077; 75 994; 75 995; 75 996 and 92 355.
  • the use of these materials is especially preferred for environmental reasons.
  • a stabilising surfactant as described above allows greater flexibility in the incorporation of large amounts of salts, especially soluble salts (i.e. electrolytes) and improved possibilities for the incorporation of polymer builders, which can also act to bring about a desirable viscosity reduction in the product.
  • the incorporation of higher levels of surfactants is advantageous for fatty soil removal.
  • the stabilising surfactant is nonionic in character
  • the ensuing incorporation of high levels of nonionic rather than anionic surfactant is advantageous for the stability of any enzymes present, these in general being more sensitive to anionics than to nonionics.
  • the applicants have observed a trend that the higher the measured SOR, the lower is the concentration of surfactant necessary to achieve a given advantage.
  • the stabilising surfactant may consti­tute all or part of the detergent active material in the composition.
  • the only restriction on the total amount of detergent active and electrolyte is that together they must result in formation of a structuring system.
  • the selection of surfactant types and their proportions, in order to obtain a stable liquid with the required structure will, in the light of the present teaching, now be fully within the capability of those skilled in the art.
  • an important sub-class of useful compositions is those where the detergent active material comprises one or more conventional or 'primary' surfactants, together with one or more stabilising surfactants.
  • Typical blends useful for fabric washing compositions include those where the primary surfactant(s) comprise nonionic and/or a non-alkoxylated anionic and/or an alkoxylated anionic surfactant.
  • compositions of the present invention should have a rheology and a minimum stability, compatible with most commercial and retail requirements. For this reason, we generally prefer the compositions of the present invention to yield no more than 2% by volume phase separation upon storage at 25°C for 21 days from the time of preparation and to have a viscosity of no greater than 2.5 Pas, preferably 1.5 Pas, most preferably 1 Pas and especially 850 mPas, these viscosities being measured at a shear rate of 21 s ⁇ 1.
  • the stabilising surfactant not only enables formulation of stable compositions over a wider spectrum of primary/stabilising surfactant ratios but also over a wider range of electrolyte concentrations, and most importantly, at higher electrolyte concentrations.
  • Figure 3 shows the range of stable formulations for three systems of 10% by weight surfactant blends comprising nonionic and anionic (sodium dodecyl benzene sulphonate), the ratios between them being varied and likewise, the electrolyte concentration.
  • the three diagrams A, B, C show the effect of increasing the SOR of the stabilising surfactant.
  • the precise SOR values for the nonionics indicated can be found hereinbelow in Example 1.
  • only diagram C represents the situation on using a stabilising surfactant which fulfils feature (ii) of the present invention. It will be appreciated that similar effects occur in systems comprising three or more surfactants.
  • the feature (iii) specified hereinbefore in the definition of the present invention requires a sub-feature (a), wherein the composition is internally structured and has certain other limitations, and/or a sub-feature (b) wherein the composition is externally structured and either there is no internal structure or any internal structure present is incapable on its own of suspending solid particles (whether or not the composition actually contains such particles).
  • the first variant of sub-feature (a) is to ensure that when the composition is internally structured, a portion of the surfactant material is contained in a non-network forming phase.
  • this portion of the surfactant material may be distributed and suspended in the composition as discrete units of one or more non-network-forming phases each selected from
  • the total of the non-network-phase(s) has a higher concentration by weight of surfactant material than the aqueous solution which, other than suspended non-surfactant solids and any internal structuring phases and any external structuring materials, forms the remainder of the composition.
  • composition according to the present invention which exhibits feature (iii), sub-feature (a), first variant, it is preferred that it satisfy one of the following conditions:-
  • a detergent composition according to the invention having feature (iii) (a), first variant, to contain at least two detergent active materials and which satisfies the condition that, in respect of each detergent active material, notional gradual replacement of that material by the other detergent active materials (where there are two in total) or by the other detergent active materials in the ratio in which they are present in the composition (where there are more than two) leads from a region of physical stability to a region of higher viscosity or physical instability.
  • the term "notional replacement” here means that in practice, comparative compositions of different proportions of components are made up, in order to perform this test. Note that, according to this test, the preferred composition of the invention is in a region of stability; slightly differing compositions may be in the same region of stability.
  • non-­alkoxylated anionic surfactants it is particularly convenient to use one or more non-­alkoxylated anionic surfactants to at least predominantly form non-network-forming phases of types (B) or (C).
  • Typical examples comprise 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; the reaction products of fatty acids such as coconut fatty acids esterified with isethionic acid and neutralised with sodium hydroxide; sodium and potassium salts of fatty acid amides of methyl taurine; alkane monosulphonates such as those derived by reacting alpha-olefins (C8-C20) with sodium bisulphite and those derived from reacting paraffins with SO2 and Cl2 and then hydrolysing with a base to produce a random sulphonate; and olefin sulphonates, which term is used to describe the material made by reacting olefins, particularly C10-C20 alpha
  • non-alkoxylated anionic surfactants may also be used in those compositions of the present invention which do not contain any non-network-forming phases.
  • the composition preferably also contains one or more of : alkoxylated anionic surfactants alkoxylated nonionic surfactants mono-and di-alkanolamides amine oxides betaines sulphobetaines sugar ethers which further material at least partly forms an internal structure of the lamellar phase kind, together with the remainder said non-alkoxylated anionic surfactant.
  • surfactants of the kinds referred to in this paragraph may also be used in many other compositions according to the present invention.
  • alkoxylated anionic surfactants include 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.
  • alkoxylated nonionic surfactants include the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are alkyl (C6-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 phospine oxides and dialkyl sulphoxides.
  • compositions of the invention which contain non-network-forming phases of type (A) or (B).
  • phase can be added in the form of particles before or after "structuring" of the liquid phases.
  • it has been found more convenient to form such phases in situ .
  • a method of forming a structured aqueous detergent composition in which the non-network-forming phase (A) and/or the non-network-forming phase (B) is/are present comprising the steps:
  • this method Compared with adding the non-network forming phase as particles, this method has the advantages that problems of stirring-in the particles are avoided and that a problem of achieving partial solution of the particles (which is needed if the material of the particles is to form an internal structuring phase is avoided.
  • the method here proposed also allows use of a wide variety of raw materials.
  • step (IV) in the above method, said electrolyte added in step (II) may have a monovalent anion while said electrolyte added in step has a polyvalent anion.
  • the invention further provides a method of preparing a composition of the invention as described above where in the internal structuring phase and the non-network-phase (A) and/or (B) are present, in which method part of the final water content of the composition formed, is added after the addition of all detergent active material and all electrolyte.
  • the formation of the non-­network-forming phase can be achieved by the high concentration of the detergent active materials and electrolyte, prior to the final addition of water.
  • This part of the final water content added after the addition of all detergent active material and all electrolyte may be from 5 to 30% by weight of the total amount of water incorporated in the composition other than water added in association with other components.
  • the internal structuring phase should preferably comprise a surfactant system containing non-alkoxylated anionic surfactant or a mixed non-alkoxylated anionic/nonionic surfactant system.
  • Electrolytes with polyvalent anions such as sodium sulphate, citrate, carbonate, or phosphates such as tripolyphosphate are more effective for initiating formulation of an internal structuring phase but are poor at forming non-network-forming phases.
  • Other electrolytes with monovalent anions such as sodium chloride, magnesium chloride or sodium bicarbonate are more effective for producing non-network-forming phases but so poor at initiating formation of internal structuring phases that if used alone, there may be insufficient structuring phase to stably disperse the non-networkforming phase(s), together with any solids which may be present.
  • compositions of the present inventions which exhibit feature (iii) (a), second variant comprise a viscosity-reducing polymer.
  • This polymer may be selected from those viscosity reducing polymers which are only partly soluble in the composition and those which are substantially totally soluble. Mixtures may also be used, comprising one or more from both categories or a plurality from within only one category.
  • a polymer to fulfil the requirement of viscosity reducing it must be capable of producing a measurable reduction in viscosity when used at a concentration at which it will not render the product unstable.
  • partly dissolved polymers include many of the polymer and co-polymer 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 incorporating 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 partly dissolved 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.
  • Any viscosity reducing polymer which is of the kind which is substantially totally soluble in the aqueous phase must have an electrolyte resistance of more than 5 grams sodium nitrilotriacetate in 100ml of a 5% by weight aqueous solution of the polymer, said second 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 polyethelene glycol having an average molecular weight of 6000; said second polymer having a molecular weight of at least 1000.
  • the incorporation of the soluble polymer permits formulation with higher concentrations at the same viscosity (relative to compositions without the soluble polymer) or at fixed concentration, with lower viscosity whilst maintaining stability.
  • the soluble polymer can also reduce upward 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. This 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 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 usefully, 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 trisodium nitrilotriacetate (NaNTA) solution necessary to reach the cloud point Of 100ml 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 10g NaNTA, especially 15g.
  • the latter indicates a vapour pressure of a 20% aqueous solution of said polymer, having a vapour pressure equal to or lower than the vapour pressure of a 2% aqueous solution of polyethyleneglycol with a molecular weight of 6,000, preferably equal to or lower than that of a 10% aqueous solution of said polyethyleneglycol, and particularly preferably equal to or lower than that of an 18% aqueous solution of said polyethyleneglycol.
  • Suitable external structurants include water-­swellable polymers and/or inorganic colloids, or filamentary soap crystals or cellulose.
  • Typical water-swellable polymers are water-soluble polymers of acrylic acid, cross-linked with about 1% of a polyallyl ether of sucrose having an average of about 5-8 allyl groups for each sucrose molecule, and having an average molecular weight of about 1,000,000. Examples of such polymers are disclosed in our UK patent application GB 2 079 305 A.
  • inorganic colloid materials as external structurants is described in, for example, US patents 4 005 027 and 4 438 016, whilst typical use of filamentary soap crystals and cellulose are disclosed in UK patent specification GB 1 418 671.
  • composition according to the present invention exhibits feature (iii), sub-feature (b) then optionally, it may also contain a non-network-forming phase of type (A) or (B) as hereinbefore defined.
  • a non-network-forming phase of type (C) would be dissolved by the amounts of the hydrotrope which would be necessary to inhibit formation of an internal structure having solid suspending properties.
  • the surfactant material may comprise one or more surfactants chosen from a very wide range and may include one or more of the surfactants recited hereinbefore. In general, they may be selected from anionic, cationic, nonionic, zwitterionic and amphoteric species, and (provided mutually compatible) mixtures thereof.
  • an alkali metal soap of a mono- or di 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.
  • compositions which contain an internal surfactant structure preferably also contain electrolyte in an amount sufficient to promote that structuring.
  • electrolyte Preferably though, all or most will be salting-out electrolyte. Salting-out electrolyte has the meaning ascribed to in specification EP-A-79 646.
  • some salting-in electrolyte (as defined in the latter specification) may also be lncluded, provided if of a kind and in an amount compatible with the other components and the composition is still in accordance with the definition of the invention claimed herein.
  • compositions according to the present invention include detergency builder material, some or all of which may be electrolyte.
  • the builder material is any 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 the fabric softening clay material.
  • Examples of phosphorus-containing inorganic detergency builders when present, include the water-soluble salts, especially alkali 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, silicates and zeolites.
  • organic detergency builders when present, include the alkali metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates, polyacetyl carboxylates and polyhydroxysulphonates. Specific examples include sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediaminetetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, tartrate mono succinate, tartrate di succinate, melitic acid, benzene polycarboxylic acids and citric acid. Some of the polymeric organic builders may also function as viscosity reducing polymers as hereinbefore described.
  • the key aim in formulating detergent aqueous liquid concentrates is to enhance the amount of functional ingredients. Clearly, the more of these that are present, the less will be the quantity of water in the system.
  • the concentrated structured aqueous liquid detergent compositions according to the present invention will contain no more than 80% by weight of water but preferably they will comprise only from 50% to 30%, most preferably from 45% to 35% and especially from 40% to 35% by weight of water.
  • the total amount of electrolyte (dissolved plus non-dissolved) will be from 1% to 60%, preferably from 10% to 50%, most preferably from 20% to 45% and possibly from 30% to 40% by weight of the total composition.
  • the amount of suspended solid material is typically from 0% to 40%, preferably from 1% to 20% and most preferably from 3% to 10% by volume of the total composition.
  • the suspended solid material will usually be present at from 0% to 65%, preferably from 2.5% to 35% and most preferably from 5% to 15%.
  • the amount of dissolved electrolyte is typically from 1% to 65%, preferably from 5% to 35% and most preferably from 10% to 15% by weight of the total composition.
  • the total amount of surfactant material will typically be from 10% to 50%, preferably from 15% to 40% and most-preferably from 20% to 30% by weight of the total composition.
  • lather boosters such as alkanolamides, particularly the monoethanolamides derived from palm kernel fatty acids and coconut fatty acids, fabric softeners such as clays, amines and amine oxides, lather depressants, oxygen-releasing bleaching agents such as sodium perborate and sodium percarbonate, peracid bleach precursors, chlorine-releasing bleaching agents such as tricloroisocyanuric acid, inorganic salts such as sodium sulphate, and, usually present in very minor amounts, fluorescent agents, perfumes, enzymes such as proteases and amylases, germicides and colourants.
  • lather boosters such as alkanolamides, particularly the monoethanolamides derived from palm kernel fatty acids and coconut fatty acids
  • fabric softeners such as clays, amines and amine oxides
  • lather depressants oxygen-releasing bleaching agents such as sodium perborate and sodium percarbonate, peracid bleach precursors, chlorine-releasing bleaching agents such as tricloroisocyanuri
  • compositions of the present invention may be concentrated mainly in detergent active material, mainly concentrated in electrolyte and/or insoluble solids or relatively concentrated in a combination of these.
  • the precise amounts will also depend on the intended application.
  • a typical concentrated heavy duty liquid detergent product for fabrics washing might comprise, by weight : 30% - 35% electrolyte 20% - 25% detergent actives 0% - 5% minor ingredients 50% - 35% water
  • a concentrated general purpose cleaner without suspended solid may for example comprise by weight: 5% - 25% electrolyte 15% - 25% detergent actives 0% - 5% minor ingredients 80% - 45% water
  • a concentrated liquid abrasive cleaner, by weight might comprise : 20% - 30% electrolyte 10% - 25% detergent actives 0% - 5% minor ingredients 70% - 40% water
  • the abrasive particles are water soluble and hence are readily rinsed away when the treated surface is washed with water. Therefore, in the product, the particles, constitute undissolved electrolyte.
  • Example 3 Compositions Composition (%w/w) Component A1 A2 A3 A4 B1 B2 B3 C1 C2 C3 Na DOBS 10.35 10.35 10.35 10.35 11.0 11.16 11.0 15.10 15.53 15.10 K coconut soap 1.65 1.65 1.65 1.75 1.77 1.75 2.40 2.47 2.40 C 12-13 G3 (ii) - 1.5 1.5 1.5 - 0.94 1.5 - 1.0 1.5 C 12-15 E7 3.0 1.5 1.5 1.5 2.25 1.12 0.75 2.5 1.0 1.0 STP 24 24 24 24 24 24 24 24 24 24 24 24 24 ⁇ (i) TKPP 6 6 6 6 6 6 6 6 6 6 6 6 6 6 Glycerol 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Sodium pentaborate 2 2 2 2 2 2 2 2 2 2 2 2 Perfume 1 1 1 1 1 1 1 1 1 PEG - - 2.0 - - - - - - - - ⁇ iii (a)(ii) Dextran - -
  • a stable composition (G2) which has, however, such a high viscosity that it is not pourable (gel-like).
  • the pourability can be improved by partial breakdown of the internal structure by adding ethanol (G3) followed by externally structuring the composition by a structuring polymer. This yields a stable and pourable composition (G4) according to our invention.
EP89202220A 1988-09-16 1989-09-01 Compositions détergentes liquides Expired - Lifetime EP0359308B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8821763 1988-09-16
GB888821763A GB8821763D0 (en) 1988-09-16 1988-09-16 Liquid detergents

Publications (3)

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EP0359308A2 true EP0359308A2 (fr) 1990-03-21
EP0359308A3 EP0359308A3 (fr) 1991-01-16
EP0359308B1 EP0359308B1 (fr) 1995-04-19

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EP89202220A Expired - Lifetime EP0359308B1 (fr) 1988-09-16 1989-09-01 Compositions détergentes liquides

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EP (1) EP0359308B1 (fr)
JP (1) JP2752186B2 (fr)
AT (1) ATE121450T1 (fr)
AU (1) AU628381B2 (fr)
BR (1) BR8904647A (fr)
DE (1) DE68922258T2 (fr)
ES (1) ES2071641T3 (fr)
GB (1) GB8821763D0 (fr)
ZA (1) ZA897059B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385522A2 (fr) * 1989-02-27 1990-09-05 Unilever N.V. Composition détergente liquide
WO1991005845A1 (fr) * 1989-10-12 1991-05-02 Unilever N.V. Detergents liquides
WO1991012307A2 (fr) * 1990-02-08 1991-08-22 Unilever N.V. Composition de blanchissage liquide
WO1991016409A1 (fr) * 1990-04-25 1991-10-31 Unilever N.V. Compositions pour detergents liquides
WO1996010625A1 (fr) * 1994-09-30 1996-04-11 Unilever N.V. Composition detergente
EP0724013A1 (fr) * 1995-01-30 1996-07-31 Colgate-Palmolive Company Concentrés de détergents versables qui maintiennent ou augmentent leur viscosité après dilution dans l'eau
US6617293B2 (en) 2001-08-06 2003-09-09 3M Innovative Properties Company Thickening on dilution liquid soap

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU684701B3 (en) * 1997-03-27 1997-12-18 David Garth Tetley Miles Hand cleaning formulation
US20080032909A1 (en) * 2006-05-05 2008-02-07 De Buzzaccarini Francesco Compact fluid laundry detergent composition

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DE2029598A1 (fr) * 1969-06-17 1970-12-23
GB1225218A (fr) * 1968-07-31 1971-03-17
EP0024711A1 (fr) * 1979-09-01 1981-03-11 Henkel Kommanditgesellschaft auf Aktien Produits concentrés de tensides aqueux et procédé pour l'amélioration des propriétés d'écoulement de produits concentrés de tensides aqueux difficilement transportables
EP0120533A2 (fr) * 1983-03-25 1984-10-03 Unilever N.V. Composition détergente aqueuse alcaline liquide
EP0154362A1 (fr) * 1984-02-16 1985-09-11 Unilever N.V. Composition détergentes liquides
EP0295021A2 (fr) * 1987-06-10 1988-12-14 Albright & Wilson Limited Compositions détergentes liquides
EP0301883A1 (fr) * 1987-07-31 1989-02-01 Unilever Plc Compositions détergentes liquides
EP0328176A2 (fr) * 1988-02-10 1989-08-16 Unilever N.V. Compositions détergentes aqueuses et leur procédé de préparation
EP0346994A2 (fr) * 1988-06-13 1989-12-20 Unilever N.V. Compositions détergentes liquides
EP0346993A2 (fr) * 1988-06-13 1989-12-20 Unilever N.V. Composition détergentes liquides
EP0346995A2 (fr) * 1988-06-13 1989-12-20 Unilever N.V. Produits détergents liquides

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1225218A (fr) * 1968-07-31 1971-03-17
DE2029598A1 (fr) * 1969-06-17 1970-12-23
EP0024711A1 (fr) * 1979-09-01 1981-03-11 Henkel Kommanditgesellschaft auf Aktien Produits concentrés de tensides aqueux et procédé pour l'amélioration des propriétés d'écoulement de produits concentrés de tensides aqueux difficilement transportables
EP0120533A2 (fr) * 1983-03-25 1984-10-03 Unilever N.V. Composition détergente aqueuse alcaline liquide
EP0154362A1 (fr) * 1984-02-16 1985-09-11 Unilever N.V. Composition détergentes liquides
EP0295021A2 (fr) * 1987-06-10 1988-12-14 Albright & Wilson Limited Compositions détergentes liquides
EP0301883A1 (fr) * 1987-07-31 1989-02-01 Unilever Plc Compositions détergentes liquides
EP0328176A2 (fr) * 1988-02-10 1989-08-16 Unilever N.V. Compositions détergentes aqueuses et leur procédé de préparation
EP0346994A2 (fr) * 1988-06-13 1989-12-20 Unilever N.V. Compositions détergentes liquides
EP0346993A2 (fr) * 1988-06-13 1989-12-20 Unilever N.V. Composition détergentes liquides
EP0346995A2 (fr) * 1988-06-13 1989-12-20 Unilever N.V. Produits détergents liquides

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385522A2 (fr) * 1989-02-27 1990-09-05 Unilever N.V. Composition détergente liquide
EP0385522B1 (fr) * 1989-02-27 2001-08-29 Unilever N.V. Composition détergente liquide
WO1991005845A1 (fr) * 1989-10-12 1991-05-02 Unilever N.V. Detergents liquides
WO1991012307A2 (fr) * 1990-02-08 1991-08-22 Unilever N.V. Composition de blanchissage liquide
WO1991012307A3 (fr) * 1990-02-08 1991-10-03 Unilever Plc Composition de blanchissage liquide
WO1991016409A1 (fr) * 1990-04-25 1991-10-31 Unilever N.V. Compositions pour detergents liquides
WO1996010625A1 (fr) * 1994-09-30 1996-04-11 Unilever N.V. Composition detergente
EP0724013A1 (fr) * 1995-01-30 1996-07-31 Colgate-Palmolive Company Concentrés de détergents versables qui maintiennent ou augmentent leur viscosité après dilution dans l'eau
AU702446B2 (en) * 1995-01-30 1999-02-18 Colgate-Palmolive Company, The Pourable detergent concentrates which maintain or increase in viscosity after dilution with water
US6617293B2 (en) 2001-08-06 2003-09-09 3M Innovative Properties Company Thickening on dilution liquid soap

Also Published As

Publication number Publication date
ZA897059B (en) 1991-05-29
BR8904647A (pt) 1990-04-24
GB8821763D0 (en) 1988-10-19
JPH02133498A (ja) 1990-05-22
DE68922258T2 (de) 1995-08-24
AU628381B2 (en) 1992-09-17
ES2071641T3 (es) 1995-07-01
EP0359308B1 (fr) 1995-04-19
EP0359308A3 (fr) 1991-01-16
DE68922258D1 (de) 1995-05-24
ATE121450T1 (de) 1995-05-15
JP2752186B2 (ja) 1998-05-18
AU4146589A (en) 1990-03-22

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