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WO2010072628A1 - Compositions pour lessive - Google Patents

Compositions pour lessive Download PDF

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Publication number
WO2010072628A1
WO2010072628A1 PCT/EP2009/067257 EP2009067257W WO2010072628A1 WO 2010072628 A1 WO2010072628 A1 WO 2010072628A1 EP 2009067257 W EP2009067257 W EP 2009067257W WO 2010072628 A1 WO2010072628 A1 WO 2010072628A1
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WO
WIPO (PCT)
Prior art keywords
composition
surfactant
cationic
present
composition according
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.)
Ceased
Application number
PCT/EP2009/067257
Other languages
English (en)
Inventor
Gillian Elaine Bullen
Bernard Jean-Denis
Dawn Rigby
Graham Philip Sale
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.)
Hindustan Unilever Ltd
Unilever NV
Original Assignee
Hindustan Unilever Ltd
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Hindustan Unilever Ltd, Unilever NV filed Critical Hindustan Unilever Ltd
Priority to BRPI0923570A priority Critical patent/BRPI0923570A2/pt
Priority to ES09798915T priority patent/ES2398430T3/es
Priority to EP09798915A priority patent/EP2366009B1/fr
Priority to CN200980151697.XA priority patent/CN102257115B/zh
Publication of WO2010072628A1 publication Critical patent/WO2010072628A1/fr
Priority to ZA2011/04028A priority patent/ZA201104028B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • C11D3/0015—Softening compositions liquid
    • 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
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/227—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with nitrogen-containing groups
    • 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
    • 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

Definitions

  • This invention relates to a laundry composition. More particularly, the invention is directed to a softening in the wash laundry composition.
  • One such softening system comprises a cationic polysaccharide and anionic surfactant.
  • a cationic polysaccharide and anionic surfactant.
  • Such systems are known from WO 2004/069979 which discloses particular combinations of cationic polymers and anionic surfactants.
  • the exemplified surfactant levels are generally low. For cleaning purposes, it is preferred to provide detergent compositions with higher surfactant concentrations. However, a problem with the prior art formulations at higher surfactant levels is that they can be unstable formulations.
  • WO 2008/022838 discloses liquid laundry compositions comprising anionic surfactant, nonionic surfactant, fatty acid and a cationic polymer. The compositions are stated to provide both effective softening and cleaning.
  • WO 2007/107215 discloses a process for the preparation of a non-aqueous liquid composition. The composition comprises anionic surfactant, nonionic surfactant, fatty acid and a cationic polymer.
  • this invention is directed to a liquid detergent composition
  • a liquid detergent composition comprising:-
  • the weight ratio of (a) to (c) is from 2.5:1 to 6:1 , and wherein the total level of surfactant present in the composition is at least 25 wt.%.
  • the weight ratio of (a) to (c) is from 2.5:1 to 5:1 , more preferably from 3:1 to 4.5:1.
  • this invention is directed to a method for the provision of softness to a textile, comprising the steps:
  • the term “comprising” means including, made up of, composed of, consisting and/or consisting essentially of.
  • a formula shall be considered physically "stable" when after 1 week at 21 degrees Celsius it exhibits no signs of phase separation.
  • the present invention is directed to laundry compositions containing fatty acid or salt thereof, a polysaccharide-based cationic polymer, a nonionic surfactant and an anionic surfactant, wherein the ratio of nonionic surfactant to fatty acid or salt thereof is from 2.5:1 to 6:1 , and wherein the total level of surfactant is at least 25 wt.%.
  • the composition displays improved stability over the prior art, and further delivers excellent softening.
  • Softening includes, but is not limited to, an improvement in the handling of a - A -
  • compositions of these compositions are not limited to just softening, however. They may, depending on the particular embodiment of the invention selected, also provide an antistatic benefit.
  • the cationic polymer/an ionic surfactant compositions of this invention are further believed to lubricate the fibres of textile articles, which can reduce wear, pilling and colour fading, and provide a shape-retention benefit. This lubricating layer is also believed to provide a substrate on the fabric for retaining fragrances and other benefit agents.
  • the present invention can take any of a number of forms that are included as main wash products. It can take the form of a laundry treatment agent for the main wash, which may be dilutable or non-dilutable.
  • the laundry treatment agent may for example be an isotropic liquid, or a surfactant-structured liquid.
  • Particularly preferred forms of this invention include combination detergent/softener products to provide "softening in the wash".
  • softening in the wash is meant a composition which provides a fabric softening benefit as well as providing cleaning to the laundered fabric.
  • a composition can be added as part of a main wash product, or as a separate product for use in combination with another.
  • the composition is intended for use in the main wash cycle.
  • the softening in the wash composition of the invention is incorporated as part of a single product for use in the main wash.
  • the pH range of the composition is 7-12, preferably 8.5 to 9.5. It is desirable to buffer the formulation at whatever the target pH of the composition is.
  • the liquid detergent composition provides a softness benefit to the laundered fabrics by a method comprising the steps:
  • the liquid detergent compositions include fatty acid or salt thereof, a term used herein interchangeably with the term 'soap'. Both terms are herein defined as an alkali or alkaline earth metal salt of a natural or synthetic fatty acid containing between 6 and 30 carbon atoms.
  • the soap contains between C 8 -C 2 B, more preferably C 8 -C 24 , still more preferably C 8 -Ci 8 carbon atoms.
  • the incorporation level of the soap is from 2 to 14%, preferably from 2.5 to 10%, more preferably from 3 to 9% by weight of the total composition. Particularly preferred forms of soap are outlined below.
  • R 1 COOM where R 1 is a primary or secondary alkyl group of 5 to 29 carbon atoms and M is a solubilising cation.
  • the alkyl group represented by R 1 may represent a mixture of chain lengths and may be saturated or unsaturated, although it is preferred that at least two thirds of the R 1 groups have a chain length of between 7 and 17 carbon atoms.
  • suitable alkyl group sources include the fatty acids derived from coconut oil, tallow, tall oil and palm kernel oil. For the purposes of minimising odour, however, it is often desirable to use primarily saturated carboxylic acids.
  • the solubilising cation, M is an alkali or alkaline earth metal cation.
  • Preferred examples of cations include alkali metals such as sodium and potassium.
  • the liquid detergent composition comprises nonionic surfactant, and anionic surfactant other than soap.
  • the soap present in the composition is not included in the calculation of anionic surfactant for weight inclusion or weight ratios present in the composition.
  • the wt.% of soap present is not included the total amount of surfactant present.
  • the liquid detergent compositions have a high level of surfactant present defined as a surfactant level of at least 25 wt.% of the composition.
  • surfactants may be chosen from the surfactants described in "Surface Active Agents” Vol. 1 , by Schwartz & Perry, lnterscience 1949, Vol. 2 by Schwartz, Perry & Berch, lnterscience 1958, in the current edition of "McCutcheon's Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981.
  • the surfactants used are saturated.
  • Suitable nonionic detergent compounds 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, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Specific nonionic detergent compounds are C ⁇ to C22 alkyl phenol- ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic Cs to Cis primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 40 EO.
  • Suitable anionic detergent compounds which may be used 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 Cs to Cis alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl Cg to C20 benzene sulphonates, particularly sodium linear secondary alkyl C10 to C15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the preferred anionic detergent compounds are sodium Cu to C15 alkyl benzene sulphonates and sodium C12 to Cis alkyl sulphates.
  • Salts of sulphonates included as hydrotrobes can additionally be considered as anionic surfactants as defined herein. Also applicable are surfactants such as those described in EP-A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074, and alkyl monoglycosides.
  • the nonionic detergent is present in amounts of from 6 to 40 wt.%, preferably from 7.5 to 35 wt.%, more preferably from 10 to 25 wt.%.
  • the anionic surfactant is present in amounts of from 6 to 20 wt.%, preferably from 6.5 to 17.5 wt.%, more preferably from 7.5 to 15 wt.%.
  • the total amount of surfactant present in the liquid composition is at least 25 wt.%.
  • the total amount of surfactant is from 25 to 65 wt.%, preferably from 25.5 to 50 wt.%.
  • surfactants such as amphoteric, zwitterionic and cationic surfactants may also be present in addition to the aforementioned nonionic and anionic surfactants.
  • cationic polysacchahde-based polymer refers to polymers having a polysaccharide backbone and an overall positive charge.
  • Polysaccharides are polymers made up from monosaccharide monomers joined together by glycosidic bonds.
  • the cationic polysaccharide-based polymers present in the compositions of the invention have a modified polysaccharide backbone, modified in that additional chemical groups have been reacted with some of the free hydroxyl groups of the polysaccharide backbone to give an overall positive charge to the modified cellulosic monomer unit.
  • a preferred class of cationic polysaccharide polymers suitable for this invention are those that have a polysaccharide backbone modified to incorporate a quaternary ammonium salt.
  • the quaternary ammonium salt is linked to the polysaccharide backbone by a hydroxyethyl or hydroxypropyl group.
  • the charged nitrogen of the quaternary ammonium salt has one or more alkyl group substituents.
  • Preferred cationic polysaccharide-based polymers have a guar based, or cellulosic based backbone.
  • Cellulose based cationic polymers are most preferred.
  • Guar is a galactomannan having a ⁇ -1 ,4 linked mannose backbone with branchpoints to ⁇ -1 ,6 linked galactose units.
  • An example of a guar based cationic polymer is guar 2-hydroxy-3-(trimethylammonium) propyl ether salt.
  • Cellulose is a polysaccharide with glucose as its monomer, specifically it is a straight chain polymer of D-glucopyranose units linked via ⁇ -1 ,4 glycosidic bonds and is a linear, non-branched polymer.
  • preferred cationic cellulosic polymers include cocodimethylammonium hydroxypropyl oxyethyl cellulose, lauryldimethylammonium hydroxypropyl oxyethyl cellulose, stearyldimethylammonium hydroxypropyl oxyethyl cellulose, and stearyldimethylammonium hydroxyethyl cellulose; cellulose 2-hydroxyethyl 2- hydroxy 3-(thmethyl ammonio) propyl ether salt, polyquaternium-4, polyquaternium-10, polyquaternium-24 and polyquaternium-67 or mixtures thereof.
  • the cationic cellulosic polymer is polyquaternium-10.
  • Suitable commercial cationic cellulosic polymer products for use according to the present invention are marketed by the Amerchol Corporation, a subsidiary of The Dow Chemical Company, under the trade name UCARE Polymer LR-400.
  • the term cationic cellulosic polymer can include a single polymer or a mixture of different polymers.
  • the countehon of the cationic polymer is freely chosen from the halides: chloride, bromide, and iodide; or from hydroxide, phosphate, sulphate, hydrosulphate, ethyl sulphate, methyl sulphate, formate, and acetate.
  • the species responsible for providing a softening benefit in these formulations is a polymer/surfactant complex, especially a cationic polymer/soap complex.
  • the cationic polysacchahde-based polymer is present at a level of from 0.2 to 1.5 wt.%, preferably from 0.25 to 1 wt.%.
  • the aforementioned cationic polymers can be synthesised in, and are commercially available in, a number of different molecular weights.
  • the molecular weight of the cationic polysacchahde-based polymer is from 10,000 to 850,000 Daltons, more preferably from 10,000 to 500,000 Daltons.
  • the liquid detergent composition may additionally comprise one or more of the following optional ingredients.
  • the composition optionally comprises from 1 to 50 wt.% of a builder.
  • a builder Preferably the builder is present at a level of from 1 to 40 wt.%.
  • Builder materials may be selected from 1 ) calcium sequestrant materials, 2) precipitating materials, 3) calcium ion-exchange materials and 4) mixtures thereof.
  • the size is in the range 0.1 to 10 microns (as measured by The Mastersizer 2000 particle size analyzer using laser diffraction ex MalvernTM).
  • calcium sequestrant builder materials examples include alkali metal polyphosphates, such as sodium tripolyphosphate and organic sequestrants, such as ethylene diamine tetra-acetic acid.
  • precipitating builder materials examples include sodium orthophosphate and sodium carbonate.
  • Examples of calcium ion-exchange builder materials include the various types of water-insoluble crystalline or amorphous aluminosilicates, of which zeolites are the best known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070.
  • zeolites are the best known representatives, e.g. zeolite A, zeolite B (also known as zeolite P), zeolite C, zeolite X, zeolite Y and also the zeolite P-type as described in EP-A-0,384,070.
  • the composition may also contain 0-50 wt.% of a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenethamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nithlotriacetic acid or the other builders mentioned below.
  • a builder or complexing agent such as ethylenediaminetetraacetic acid, diethylenethamine-pentaacetic acid, alkyl- or alkenylsuccinic acid, nithlotriacetic acid or the other builders mentioned below.
  • Many builders are also bleach-stabilising agents by virtue of their ability to complex metal ions.
  • Zeolite and carbonate are preferred builders.
  • the composition may contain as builder a crystalline aluminosilicate, preferably an alkali metal aluminosilicate, more preferably a sodium aluminosilicate. This is typically present at a level of less than 15 wt.%.
  • Aluminosilicates are materials having the general formula:
  • M is a monovalent cation, preferably sodium.
  • M a monovalent cation, preferably sodium.
  • These materials contain some bound water and are required to have a calcium ion exchange capacity of at least 50 mg CaO/g.
  • the preferred sodium aluminosilicates contain 1.5-3.5 SiO 2 units in the formula above. They can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature.
  • the ratio of surfactants to alumuminosilicate (where present) is preferably greater than 5:2, more preferably greater than 3:1.
  • phosphate builders may be used.
  • 'phosphate' embraces diphosphate, triphosphate, and phosphonate species.
  • Other forms of builder include silicates, such as soluble silicates, metasilicates, layered silicates (e.g. SKS-6 from Hoechst).
  • the laundry detergent formulation is a non-phosphate built laundry detergent formulation, i.e., contains less than 1 wt.% of phosphate.
  • the laundry treatment composition preferably comprises a blue or violet shading agent in the range from 0.0001 to 0.01 wt.%.
  • the shading agents reduce the perception of damage to many coloured garments and increase whiteness of white garments.
  • the shading agents are preferably selected from blue and violet dyes of the solvent disperse basic, direct and acid type listed in the colour index (Society of Dyers and Colourists and American Association of Textile Chemists and Colohsts 2002).
  • a direct violet or direct blue dyes is present.
  • the dyes are bis-azo, tris-azo dyes or triphendioxazine dye.
  • the carcinogenic benzidene based dyes are not preferred.
  • the composition preferably comprises a fluorescent agent (optical bhghtener).
  • fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt.%, more preferably 0.01 to 0.1 wt.%.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g.
  • Preferred fluorescers are: sodium 2-(4-styryl-3-sulfophenyl)-2H-napthol[1 ,2- d]trazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1 ,3,5- thazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6- morpholino-1 ,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'- bis(2-sulfoslyryl)biphenyl.
  • the composition comprises a perfume.
  • the perfume is preferably in the range from 0.001 to 3 wt.%, most preferably 0.1 to 1 wt.%.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • Many suitable examples of perfumes are provided in the CTFA (Cosmetic, Toiletry and Fragrance Association) 1992 International Buyers Guide, published by CFTA Publications and OPD 1993 Chemicals Buyers Directory 80th Annual Edition, published by Schnell Publishing Co.
  • compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components.
  • top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955]).
  • Preferred top-notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
  • Perfume and top note may be used to cue the fabric care benefit of the invention.
  • the laundry treatment composition does not contain a peroxygen bleach, e.g., sodium percarbonate, sodium perborate, and peracid.
  • a peroxygen bleach e.g., sodium percarbonate, sodium perborate, and peracid.
  • the composition may comprise one or more polymers.
  • polymers are carboxymethylcellulose, poly(ethylene glycol), polyvinyl alcohol), polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.
  • the liquid detergent composition may optionally include a hydrotrope, which can prevent liquid crystal formation.
  • a hydrotrope which can prevent liquid crystal formation.
  • the addition of the hydrotrope thus aids the clarity/transparency of the composition.
  • Suitable hydrotropes include but are not limited to propylene glycol, ethanol, urea, salts of benzene sulphonate, toluene sulphonate, xylene sulphonate or cumene sulphonate.
  • Suitable salts include but are not limited to sodium, potassium, ammonium, monoethanolamine, triethanolamine. Salts of sulphonates can also be considered as anionic surfactants as defined herein.
  • the hydrotrope is selected from the group consisting of propylene glycol, xylene sulfonate, ethanol, and urea to provide optimum performance.
  • the amount of the hydrotrope is generally in the range of from 0 to 30%, preferably from 0.5 to 30%, more preferably from 0.5 to 30%, most preferably from 1 to 15%.
  • Water, fluorescer and hydrotropes are mixed together at ambient temperature (approximately 22 0 C) for 2-3 minutes at a shear rate of 130 rpm using a Janke & Kunkel IKA RW20 overhead mixer. Salts and alkalis are added and mixed for 5 minutes prior to addition of surfactants and fatty acid. The temperature of the mix rises to around 50-60 0 C at this point. After allowing to cool to ⁇ 30C, the LR400 solution, PVP or PVP/PVI and remaining components such as perfume, preservatives, opacifier and dyes are added.
  • the anionic surfactant used was LAS acid. This is neutralised in formulation to give sodium linear alkylbeneze sulphonate (NaLAS). The actual weight of anionic surfactant used is based on this neutralised form, and is therefore slightly higher than the formulation weight of LAS acid.
  • LAS acid has an average molecular weight of 326.5 based on a formula of (CH 3 (CH 2 )IiC 6 H 4 SO 3 H).
  • NaLAS has molecular weight of 348.5 based on a formula of (CH 3 (CH 2 )i 1C 6 H 4 SO 3 Na).
  • An example value of 1Og of LAS acid would have a total weight of anionic surfactant of 10.67g (based on the calculation (1 Og/326.5) x 348.5).
  • Example A has a nonionic surfactant to soap weight ratio (NI:Soap) of 0.5:1
  • example B has a NI:Soap ratio of 10:1 , i.e. outside the lower and upper range present in claim 1.
  • Example A proved to be unstable during processing.
  • a comparative example (Comparative C) was prepared according to WO 2008/022838 examples 1 -3. According to the definitions herein, these example comprise nonionic surfactant at 12 wt.%, anonionic surfactant at 10.5 wt.% (made up from 7.5g NaLAS (rounded up from 10.47g) - i.e. the neutralised form of the acid + 3g of sodium xylenesulfonate, which is classed herein as both a surfactant and a hydrotrobe), 10g of fatty acid and 0.5g of cationic polymer.
  • the total level of surfactant is 22.5g, the surfactant level as defined herein is not inclusive of the fatty acid or salt thereof.
  • Samples of 100ml are stored in clear, plastic jars for a period of up to 12 weeks. Storage took place at room temperature (22°C) and the samples were assessed for physical instability in terms of phase separation, defined as being the development of two, or more layers present in the sample. It is thus possible to assess the products in terms of whether they display instability, or indeed if they can be processed to a completed product at all.
  • the following table shows the physical stability characteristics of a series of formulations made according to the aforementioned method of production.
  • formulations with a weight ratio of nonionic surfactant to fatty acid within the range 2.5:1 to 6:1 are shown to have more stable.

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Abstract

L'invention porte sur une composition détergente liquide comportant au moins 25 % en poids de surfactants, soit: (a) un surfactant non ionique, (b) un surfactant anionique, (c) un acide gras ou l'un de ses sels, et (d) un polymère cationique à base de polysaccharide. Le rapport pondéral a/b étant compris entre 2,5:1 et 6:1; et la composition présentant un effet adoucissant lors du lavage du linge.
PCT/EP2009/067257 2008-12-22 2009-12-16 Compositions pour lessive Ceased WO2010072628A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BRPI0923570A BRPI0923570A2 (pt) 2008-12-22 2009-12-16 composição detergente líquida, e, método para proporcionar maciez a um artigo de tecido
ES09798915T ES2398430T3 (es) 2008-12-22 2009-12-16 Composiciones para el lavado de ropa
EP09798915A EP2366009B1 (fr) 2008-12-22 2009-12-16 Compositions pour lessive
CN200980151697.XA CN102257115B (zh) 2008-12-22 2009-12-16 洗衣组合物
ZA2011/04028A ZA201104028B (en) 2008-12-22 2011-05-31 Laundry compositions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08172509 2008-12-22
EP08172509.5 2008-12-22

Publications (1)

Publication Number Publication Date
WO2010072628A1 true WO2010072628A1 (fr) 2010-07-01

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PCT/EP2009/067257 Ceased WO2010072628A1 (fr) 2008-12-22 2009-12-16 Compositions pour lessive

Country Status (7)

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EP (1) EP2366009B1 (fr)
CN (1) CN102257115B (fr)
AR (1) AR074850A1 (fr)
BR (1) BRPI0923570A2 (fr)
ES (1) ES2398430T3 (fr)
WO (1) WO2010072628A1 (fr)
ZA (1) ZA201104028B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013087287A1 (fr) 2011-12-12 2013-06-20 Unilever Plc Compositions pour lessiver
WO2013087285A1 (fr) * 2011-12-12 2013-06-20 Unilever Plc Compositions pour lessiver et utilisations
EP3858964A1 (fr) * 2020-01-30 2021-08-04 Henkel IP & Holding GmbH Mélange de trois polymères pour assurer l'entretien du linge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013231561B2 (en) * 2012-03-15 2017-06-08 Aziende Chimiche Riunite Angelini Francesco A.C.R.A.F. S.P.A. Glycogen-based cationic polymers

Citations (4)

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WO2013087287A1 (fr) 2011-12-12 2013-06-20 Unilever Plc Compositions pour lessiver
WO2013087285A1 (fr) * 2011-12-12 2013-06-20 Unilever Plc Compositions pour lessiver et utilisations
WO2013087284A1 (fr) 2011-12-12 2013-06-20 Unilever Plc Compositions pour lessiver
EP3858964A1 (fr) * 2020-01-30 2021-08-04 Henkel IP & Holding GmbH Mélange de trois polymères pour assurer l'entretien du linge
US11499120B2 (en) 2020-01-30 2022-11-15 Henkel Ag & Co. Kgaa Three polymer blend to achieve fabric care in laundry

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ZA201104028B (en) 2012-08-29
BRPI0923570A2 (pt) 2016-08-23
EP2366009B1 (fr) 2012-10-24
EP2366009A1 (fr) 2011-09-21
ES2398430T3 (es) 2013-03-19
CN102257115B (zh) 2013-02-06
AR074850A1 (es) 2011-02-16

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