EP0700427B1 - Compositions detergentes - Google Patents

Compositions detergentes Download PDF

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Publication number
EP0700427B1
EP0700427B1 EP94915116A EP94915116A EP0700427B1 EP 0700427 B1 EP0700427 B1 EP 0700427B1 EP 94915116 A EP94915116 A EP 94915116A EP 94915116 A EP94915116 A EP 94915116A EP 0700427 B1 EP0700427 B1 EP 0700427B1
Authority
EP
European Patent Office
Prior art keywords
nonionic surfactant
detergent composition
ethoxylation
optionally
surfactant
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
EP94915116A
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German (de)
English (en)
Other versions
EP0700427B2 (fr
EP0700427A1 (fr
Inventor
Jelles Vincent Boskamp
Helen Burgess
Mark Phillip Houghton
Christophe Joyeux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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Publication date
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Priority claimed from GB939310823A external-priority patent/GB9310823D0/en
Priority claimed from GB939324127A external-priority patent/GB9324127D0/en
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0700427A1 publication Critical patent/EP0700427A1/fr
Publication of EP0700427B1 publication Critical patent/EP0700427B1/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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • 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
    • 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
    • C11D1/83—Mixtures of non-ionic with anionic 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • C11D17/065—High-density particulate detergent 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites
    • 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
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • 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

Definitions

  • the present invention relates to particulate detergent compositions of high bulk density containing anionic and nonionic surfactants and zeolite builder.
  • EP 544 492A discloses detergent powders of high bulk density comprising an organic surfactant system (ethoxylated nonionic surfactant plus primary alcohol sulphate), zeolite builder, and other optional ingredients.
  • the ethoxylated nonionic surfactant which is the predominant component (at least 60 wt%) of the surfactant system, has a degree of ethoxylation not exceeding 6.5, preferably from 3 to 6.5 and more preferably from 4 to 5.5.
  • This high-performance surfactant system gives excellent detergency, and the use of relatively high levels of zeolite allows the formulation of free-flowing powders containing high levels of these mobile surfactants.
  • compositions are representative of the recent trend towards powders of high bulk density, prepared by processes that eliminate, or do not introduce, the porosity typical of traditional spray-dried powders. These include post-tower densification of spray-dried powders, and, more preferably, wholly non-tower routes involving dry-mixing, agglomeration, granulation and similar processes.
  • Delivery is a two-step process: the first step is the dispensing of the powder into the wash liquor, either from the dispenser drawer of the washing machine or from a dispensing device (a wash ball or similar) supplied by the powder manufacturer; and the second is dissolution of the powder once it arrives in the wash water.
  • Citrates are well known as detergency builders used to supplement zeolites. Their use in zeolite-built powders is disclosed, for example, in EP 313 143A, EP 313 144A, EP 448 297A and EP 448 298A (Unilever); GB-A-1 408 678, EP 1310A, EP 1853B, EP 326 208A, EP 456 315A and WO 91 15566A (Procter & Gamble); DE 2 336 182C (Lion); and GB 2 095 274B (Colgate).
  • EP-A-0508034 discloses a granular detergent composition which is characterised by containing polyvinylpyrrolidone to give good dye transfer-inhibition effects without impairment of particulate soil removal. It is mentioned that citric acid may be used as a carboxylate chelating agent.
  • EP-A-0508358 relates to a laundry detergent composition characterised by containing an alkaline cellulase and polyvinylpyrrolidone. Citrates may be used as builder.
  • the present invention accordingly provides a particulate detergent composition which is not the direct product of a spray-drying process, the composition having a bulk density of at least 650 g/l and comprising:
  • nonionic surfactant which is an ethoxylated primary C 8 -C 18 alcohol having an average degree of ethoxylation within the range of from 5.2 to 8.0 to improve the delivery and dissolution characteristics of a particulate detergent composition having a bulk density of at least 650 g/l which is not the direct process of a spray-drying process and which comprises:
  • the high bulk density particulate detergent compositions of the invention contain as essential ingredients:
  • compositions are preferably made by mixing and granulation processes that do not involve spray-drying.
  • the invention also encompasses compositions that have been prepared by spray-drying and subsequently subjected to a granulation, densification or similar treatment that removes or reduces the porosity typical of a spray-dried powder.
  • compositions of the invention are characteristically of low particle porosity.
  • the particles Preferably have a void volume not exceeding 10 wt%, more preferably not exceeding 5 wt%, and desirably as low as possible. Void volume may be measured by mercury porosimetry.
  • compositions of the invention contain from 15 to 50 wt%, preferably from 15 to 30 wt%, of a defined surfactant system.
  • the essential ingredient of the surfactant system is an ethoxylated alcohol nonionic surfactant having an average alkyl chain length of C 8 -C 18 and an average degree of ethoxylation within the range of from 5.2 to 8.0.
  • the nonionic surfactant preferably has an alkyl chain length of C 12 -C 16 , more preferably from C 12 -C 14 .
  • nonionic surfactant whether of vegetable or petrochemical origin, is predominantly or wholly linear.
  • nonionic surfactants derived from coconut oil.
  • synthetic materials containing some branched material are also within the scope of the invention.
  • the average degree of ethoxylation is preferably within the range of from 6 to 7.5, more preferably from 6.5 to 7.5, and most preferably is about 7.
  • the desired degree of ethoxylation may be achieved, for example, by using a single commercial material having a nominal degree of ethoxylation of 7; for example coconut alcohol 7EO (eg Kolb's Inbentin* or DAC's Lorodac*), average degree of ethoxylation 6.9; or Synperonic* A7 from ICI, degree of ethoxylation 6.9 (* indicates Trade Mark).
  • a single commercial material having a nominal degree of ethoxylation of 7 for example coconut alcohol 7EO (eg Kolb's Inbentin* or DAC's Lorodac*), average degree of ethoxylation 6.9; or Synperonic* A7 from ICI, degree of ethoxylation 6.9 (* indicates Trade Mark).
  • lower degrees of ethoxylation within the scope of the present invention may be achieved, as disclosed in EP 544 492A (Unilever) discussed above, by mixing a commercial 7EO (nominal) material with a commercial 3EO (nominal) material in suitable proportions, provided that at least 55 wt% of the mixture is constituted by the 7EO (nominal) material.
  • nonionic surfactant used in the compositions of the invention may comprise commercial nonionic surfactant having a nominal average degree of ethoxylation of 7 (55-100 wt%, preferably 60-100 wt%), optionally in combination with commercial nonionic surfactant having a nominal average degree of ethoxylation of 3 (0-45 wt%, preferably 0-40 wt%).
  • the ethoxylated nonionic surfactant may be the sole surfactant in the compositions of the invention.
  • PES primary alcohol sulphate
  • the ethoxylated nonionic surfactant preferably constitutes from 30 to 90 wt% of the surfactant system, more preferably from 40 to 70 wt%; and the PAS preferably constitutes from 10 to 70 wt%, more preferably from 30 to 60 wt%, of the surfactant system.
  • the whole composition contains at least 5 wt% of PAS.
  • the PAS suitably has a chain length in the C 8 -C 18 range, preferably C 12 -C 16 . If desired, mixtures of chain lengths may be used as described and claimed in EP 342 917A (Unilever).
  • PAS of vegetable origin and more especially PAS from coconut oil (cocoPAS)
  • cocoPAS is especially preferred.
  • the PAS is preferably present in sodium salt form.
  • compositions of the invention contain no more than 5 wt% (based on the whole composition) of alkylbenzene sulphonates, and more preferably contain none.
  • the detergent compositions of the invention contain an alkali metal, preferably sodium, aluminosilicate builder.
  • Sodium aluminosilicates may generally be incorporated in amounts of from 20 to 70% by weight (anhydrous basis), preferably from 25 to 50 wt%.
  • the alkali metal aluminosilicate may be either crystalline or amorphous or mixtures thereof, having the general formula: 0.8-1.5 Na 2 O. Al 2 O 3 . 0.8-6 SiO 2
  • the preferred sodium aluminosilicates contain 1.5-3.5 SiO 2 units (in the formula above). Both the amorphous and the crystalline materials can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature.
  • Suitable crystalline sodium aluminosilicate ion-exchange detergency builders are described, for example, in GB-A-1 429 143 (Procter & Gamble).
  • the preferred sodium aluminosilicates of this type are the well-known commercially available zeolites A and X, and mixtures thereof.
  • the zeolite may be the commercially available zeolite 4A now widely used in laundry detergent powders.
  • the zeolite builder incorporated in the compositions of the invention is maximum aluminium zeolite P (zeolite MAP) as described and claimed in EP 384 070A (Unilever).
  • Zeolite MAP is defined as an alkali metal aluminosilicate of the zeolite P type having a silicon to aluminium ratio not exceeding 1.33, preferably within the range of from 0.90 to 1.33, and more preferably within the range of from 0.90 to 1.20.
  • zeolite MAP having a silicon to aluminium ratio not exceeding 1.07, more preferably about 1.00.
  • the calcium binding capacity of zeolite MAP is generally at least 150 mg CaO per g of anhydrous material.
  • compositions of the invention also contain as an essential ingredient a water-soluble salt of citric acid, preferably sodium citrate.
  • the citrate salt is present in an amount of from 5 to 40 wt%, preferably from 10 to 35 wt%, more preferably from 15 to 30 wt%. Especially good results have been obtained from compositions containing from 20 to 25 wt%.
  • citrate salt sodium citrate
  • the percentages refer to the dihydrate.
  • polycarboxylate polymers more especially polyacrylates and acrylic/maleic copolymers, may suitably be used in amounts of from 0.5 to 15 wt%, especially from 1 to 10 wt%.
  • compositions in accordance with the invention may contain sodium carbonate, to increase detergency and to ease processing.
  • Sodium carbonate may generally be present in amounts ranging from 1 to 60 wt%, preferably from 2 to 40 wt%, and most suitably from 2 to 13 wt%.
  • compositions free of alkali metal carbonate are also within the scope of the invention.
  • compositions also advantageously contain fatty acid soap, as a powder structurant, suitably in an amount of from 1 to 5 wt%.
  • ingredients which may be present in the base powder include fluorescer; sodium silicate; and antiredeposition agents such as cellulosic polymers, for example, sodium carboxymethyl cellulose.
  • Optional ingredients that may generally be admixed (postdosed) to give a final product include bleach components such as sodium perborate or percarbonate, bleach activators and bleach stabilisers; sodium carbonate; proteolytic and lipolytic enzymes; dyes; foam control granules; coloured speckles; perfumes; and fabric softening compounds. This list is not intended to be exhaustive.
  • compositions of the invention are of high bulk density and are preferably prepared by non-tower (non-spray-drying) processes in which solid and liquid ingredients are mixed and granulated together.
  • non-tower non-spray-drying
  • Such powders have relatively non-porous particles and may be especially prone to delivery, dispersion and dissolution problems in use.
  • mixing and granulation are carried out in a high-speed mixer/granulator having both a stirring and a cutting action.
  • the high-speed mixer/granulator also known as a high-speed mixer/densifier, may be a batch machine such as the Fukae (Trade Mark) FS, or a continuous machine such as the Lödige (Trade Mark) Recycler CB30.
  • the inorganic builders and other inorganic materials are granulated with the surfactants, which act as binders and granulating or agglomerating agents. Any optional ingredients as previously mentioned may be incorporated at any suitable stage in the process.
  • Fatty acid soap may be prepared by in situ neutralisation with sodium hydroxide solution during the mixing and granulation process.
  • any PAS present may be already neutralised, that is to say in salt form, when dosed into the high-speed mixer/granulation, or alternatively may be added in acid form and neutralised in situ.
  • PAS and nonionic surfactant may be introduced in the form of a homogeneous liquid blend, as described in EP 265 203A and EP 507 402A (Unilever).
  • EP 420 317A and EP 506 184A (Unilever) disclose a different process wherein PAS acid, which is a liquid, is mixed and reacted with a solid inorganic alkaline material, such as sodium carbonate, in a continuous high-speed mixer. The resulting granule or "adjunct" is then dosed into another high-speed mixer with the nonionic surfactants and solid ingredients. All these processes are suitable for the preparation of compositions of the invention.
  • bleach ingredients (bleaches, bleach precursor, bleach stabilisers), proteolytic and lipolytic enzymes, coloured speckles, perfumes and foam control granules are most suitably admixed (postdosed) to the dense homogeneous granular product - the base powder - after it has left the high-speed mixer/granulator.
  • the citrate salt may suitably be among the postdosed ingredients.
  • the particulate detergent compositions of the invention have bulk densities of at least 650 g/l, preferably at least 770 g/l, and more preferably at least 800 g/l.
  • powder porosity is typically low: preferably, the void volume does not exceed 10 wt%, and more preferably it does not exceed 5 wt%. Such low values are not exhibited by powders which are the direct products of spray-drying processes.
  • the content of "fines”, that is to say, particles smaller than 180 micrometres, does not exceed 10 wt%, and more preferably it does not exceed 5 wt%.
  • Test 1 cage test
  • a 50 g powder sample was introduced into the cylindrical vessel which was then closed.
  • the vessel was attached to the agitator arm which was then moved down to a position such that the top of the cylindrical vessel was just below the surface of the water. After a 10 second delay, the apparatus was operated for 15 rotation/rest cycles.
  • the cylindrical vessel and handle were removed from the water and and the vessel detached from the handle. Surface water was carefully poured off, and any powder residues transferred to a preweighed container and dried for 24 hours at 100°C. The weight of dried residue as a percentage of the initial powder weight (50 g) was then calculated.
  • Test 2 delivery device test
  • the delivery device was attached in an upright position (opening uppermost) to an agitator arm positioned above water.
  • the device could be moved vertically up and down through a distance of 30 cm, the lowest 5 cm of this travel being under water.
  • Each up or down journey had a duration of 2 seconds, the device being allowed to rest 5 cm under water for 4 seconds at the lowest position, and at the highest position being rotated through 100° and allowed to rest in the resulting tilted orientation for 2 seconds before redescending. 5 litres of water at a temperature of 20°C were used.
  • a preweighed powder sample was introduced into the device in its highest position, and the apparatus then allowed to operate for six cycles and stopped when the device was again in its highest position. Surface water was carefully poured off, and any powder residues transferred to a preweighed container. The container was then dried at 100°C for 24 hours, and the weight of dried residue as a percentage of the initial powder weight calculated.
  • Test 3 black pillowcase test
  • a washing machine test was also used to determine the extent that insoluble residues were deposited on washed articles.
  • the machine used was a Siemens Siwamat (Trade Mark) Plus 3700 front-loading automatic washer.
  • a 100 g dose of powder was placed in a flexible delivery device as described previously.
  • the delivery device was placed inside a black cotton pillowcase having dimensions of 30 cm by 60 cm, taking care to keep it upright, and the pillowcase was then closed by means of a zip fastener.
  • the pillowcase containing the (upright) delivery device was then placed on top of a 3.5 kg dry cotton washload in the drum of the washing machine.
  • the machine was operated on the "heavy duty cycle" at a wash temperature of 40°C, using water of 15° French hardness and an inlet temperature of 20°C.
  • the pillowcase was removed, opened and turned inside out, and the level of powder residues on its inside surfaces determined by visual assessment using a scoring system of 1 to 5: a score of 5 corresponds to a residue of approximately 75 wt% of the powder, while 1 indicates no residue.
  • a panel of five assessors was used to judge each pillowcase and allot a score. With each powder the wash process was carried out ten times and the scores were averaged over the ten repeats.
  • detergent powders of high bulk density were prepared to the formulations shown in Table 2.
  • Base powders were prepared using a continuous high-speed mixer/granulator, and other ingredients were postdosed as shown.
  • the sodium citrate, where present, was postdosed as particulate sodium citrate dihydrate having an average particle size of about 800 ⁇ m.
  • Comparative Example A and Example 1 contained sodium citrate; Comparative Example A contained 7EO and 3EO nonionic surfactants, while Example 1 was a similar formulation containing only 7EO nonionic surfactant to the same total level. Comparative Examples B and C were two similar compositions containing no sodium citrate.
  • Table 3 shows the powder properties and delivery characteristics of the powders. Comparison of Examples A and 1 shows that changing the nonionic surfactant to an all-7EO system in a citrate-containing formulation substantially improved delivery characteristics. Comparison of Examples B and C showed that no such improvement was observed when citrate was absent.
  • composition was prepared having a formulation corresponding to that of Example 1 but containing the following surfactant system: CocoPAS 6.37 Nonionic 7EO 8.65 (60%) Nonionic 3EO 5.77 (40%)
  • composition gave zero residues when dosed via the dispenser drawer of three different automatic washing machines (Phillips, Zanussi, Siemens).

Abstract

Composition détergente particulaire non produite par vaporisation-séchage, d'une masse volumique en vrac élevée (»650 g/l), et contenant un système du surfactants composés essentiellement d'un surfactant éthoxilé non ionique, et facultativement d'un sulfate d'alcool primaire, d'un adjuvant de type zéolite et d'un citrate. L'écoulement et la dissolution dans la lessive se trouvent améliorés du fait de la présence du surfactant éthoxilé non ionique d'un taux moyen d'éthoxylation compris entre 5,2 et 8,0 (de préférence voisin de 7).

Claims (10)

  1. Une composition détergente particulaire qui n'est pas le produit direct d'un procédé de séchage par pulvérisation, la composition présentant une masse volumique apparente au moins égale à 650 g/l et comprenant:
    (a) 15 à 50% en masse d'un système tensioactif composé essentiellement de
    (i) un agent tensioactif non ionique éthoxylé qui est un alcool primaire en C8-C18 présentant un degré moyen d'éthoxylation compris dans la gamme allant de 5,2 à 8,0,
    (ii) optionnellement un sulfate d'alcool primaire,
    (iii) optionnellement pas plus de 25 % en masse (sur la base du système tensioactif) d'alkylbenzènesulfonate,
    (b) 20 à 70 % en masse (base anhydre) d'adjuvant aluminosilicate de métal alcalin,
    (c) 5 à 40 % en masse d'un sel d'acide citrique soluble dans l'eau,
    (d) optionnellement d'autres ingrédients détergents jusqu'à 100 % en masse.
  2. Une composition détergente telle que revendiquée dans la Revendication 1, dans laquelle l'agent tensioactif non ionique éthoxylé comprend un agent tensioactif non ionique disponible dans le commerce et présentant un degré nominal moyen d'éthoxylation égal à 7 (55 à 100% en masse), optionnellement en combinaison avec un agent tensioactif non ionique disponible dans le commerce et présentant un degré nominal moyen d'éthoxylation égal à 3 (0 à 45 % en masse).
  3. Une composition détergente telle que revendiquée dans la Revendication 1, dans laquelle l'agent tensioactif non ionique présente un degré moyen d'éthoxylation compris dans la gamme allant de 6 à 7,5.
  4. Une composition détergente telle que revendiquée dans la Revendication 1, dans laquelle le système tensioactif se compose essentiellement de 30 à 60 % en masse de sulfate d'alcool primaire et de 40 à 70 % en masse d'agent tensioactif non ionique éthoxylé.
  5. Une composition détergente telle que revendiquée dans la Revendication 1, qui contient au moins 10 % en masse (au total, sur la base de la composition totale) d'un agent tensioactif non ionique éthoxylé.
  6. Une composition détergente telle que revendiquée dans la Revendication 1, qui contient au moins 5% en masse (sur la base de la composition totale) de sulfate d'alcool primaire.
  7. Une composition détergente telle que revendiquée dans la Revendication 1, qui comprend 10 à 35 % en masse du sel d'acide citrique.
  8. Une composition détergente telle que revendiquée dans la Revendication 1, dans laquelle le sel d'acide citrique est du citrate de sodium.
  9. Une composition détergente telle que revendiquée dans la Revendication 1, dans laquelle l'aluminosilicate de métal alcalin est de la zéolite P présentant un rapport silicium-aluminium n'excédant pas 1,33 (zéolite MAP).
  10. Utilisation d'un agent tensioactif non ionique qui est un alcool éthoxylé en C8-C18 présentant un degré moyen d'éthoxylation compris dans la gamine allant de 5,2 à 8,0 afin d'améliorer les caractéristiques de libération et de dissolution d'une composition détergente particulaire présentant une masse volumique apparente au moins égale à 650 g/l, qui n'est pas le produit direct d'un procédé de séchage par pulvérisation, et qui comprend:
    (a) 15 à 50% en masse d'un système tensioactif composé essentiellement de
    (i) un agent tensioactif non ionique éthoxylé,
    (ii) optionnellement un sulfate d'alcool primaire.
    (iii) optionnellement pas plus de 25 % en masse (sur la base du système tensioactif) d'alkylbenzènesulfonate,
    (b) 20 à 70% en masse (base anhydre) d'adjuvant aluminosilicate de métal alcalin,
    (c) 5 à 40 % en masse d'un sel d'acide citrique soluble dans l'eau,
    (d) optionnellement d'autres ingrédients détergents jusqu'à 100 % en masse.
EP94915116A 1993-05-26 1994-04-26 Compositions detergentes Expired - Lifetime EP0700427B2 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB9310823 1993-05-26
GB939310823A GB9310823D0 (en) 1993-05-26 1993-05-26 Detergent compositions
GB939313857A GB9313857D0 (en) 1993-05-26 1993-07-05 Detergent compositions
GB9313857 1993-07-05
GB9324127 1993-11-24
GB939324127A GB9324127D0 (en) 1993-05-26 1993-11-24 Detergent compositions
PCT/EP1994/001292 WO1994028098A1 (fr) 1993-05-26 1994-04-26 Compositions detergentes

Publications (3)

Publication Number Publication Date
EP0700427A1 EP0700427A1 (fr) 1996-03-13
EP0700427B1 true EP0700427B1 (fr) 1997-09-17
EP0700427B2 EP0700427B2 (fr) 2005-08-10

Family

ID=27266699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94915116A Expired - Lifetime EP0700427B2 (fr) 1993-05-26 1994-04-26 Compositions detergentes

Country Status (10)

Country Link
EP (1) EP0700427B2 (fr)
JP (1) JPH08511568A (fr)
AU (1) AU6648594A (fr)
CZ (1) CZ309995A3 (fr)
DE (1) DE69405735T3 (fr)
ES (1) ES2107218T5 (fr)
HU (1) HUT74019A (fr)
PL (1) PL311749A1 (fr)
SK (1) SK144695A3 (fr)
WO (1) WO1994028098A1 (fr)

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BR9408118A (pt) * 1993-11-24 1997-08-05 Unilever Nv Composição detergente em particulas processo para a preparação da mesa e uso de um sal de ácido cítrico
GB9324129D0 (en) * 1993-11-24 1994-01-12 Unilever Plc Detergent compositions and process for preparing them
WO1999010471A1 (fr) * 1997-08-25 1999-03-04 Cognis Deutschland Gmbh Detergents solides contenant des sulfates d'ester de polyglycol d'acide gras et adjuvants solides
DE19807807A1 (de) * 1998-02-26 1999-09-02 Henkel Kgaa Pulverförmiges bis granulares Wasch- und Reinigungsmittel
US20230062299A1 (en) * 2019-12-18 2023-03-02 Basf Se Powders and granules and process for making such powders and granules

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DK263584D0 (da) † 1984-05-29 1984-05-29 Novo Industri As Enzymholdige granulater anvendt som detergentadditiver
US4925585A (en) † 1988-06-29 1990-05-15 The Procter & Gamble Company Detergent granules from cold dough using fine dispersion granulation
GB8922018D0 (en) † 1989-09-29 1989-11-15 Unilever Plc Detergent compositions and process for preparing them
EP0448297A1 (fr) * 1990-03-19 1991-09-25 Unilever Plc Compositions détergentes
GB9007493D0 (en) † 1990-04-03 1990-05-30 Procter & Gamble Fabric cleaning process
RU2088645C1 (ru) † 1990-09-28 1997-08-27 Дзе Проктер Энд Гэмбл Компани Моющая композиция и способ улучшения очищающего действия по отношению к тканям моющей композиции
GB9102507D0 (en) † 1991-02-06 1991-03-27 Procter & Gamble Peroxyacid bleach precursor compositions
ES2083560T3 (es) * 1991-04-12 1996-04-16 Procter & Gamble Composicion detergente compacta que contiene polivinilpirrolidona.
EP0508034B1 (fr) * 1991-04-12 1996-02-28 The Procter & Gamble Company Composition détergente contenant des polyvinylpyrrolidones
GB9108136D0 (en) † 1991-04-17 1991-06-05 Unilever Plc Concentrated detergent powder compositions
GB9120657D0 (en) † 1991-09-27 1991-11-06 Unilever Plc Detergent powders and process for preparing them
DK154292D0 (da) † 1992-12-23 1992-12-23 Novo Nordisk As Nyt enzym

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DE69405735D1 (de) 1997-10-23
JPH08511568A (ja) 1996-12-03
ES2107218T3 (es) 1997-11-16
WO1994028098A1 (fr) 1994-12-08
EP0700427B2 (fr) 2005-08-10
PL311749A1 (en) 1996-03-18
EP0700427A1 (fr) 1996-03-13
DE69405735T2 (de) 1998-01-08
HU9503374D0 (en) 1996-01-29
SK144695A3 (en) 1996-04-03
AU6648594A (en) 1994-12-20
DE69405735T3 (de) 2006-05-18
HUT74019A (en) 1996-10-28
ES2107218T5 (es) 2006-02-16
CZ309995A3 (en) 1996-05-15

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