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WO2025140884A1 - Composition de concentré diluable pour compositions de lavage lamellaires - Google Patents

Composition de concentré diluable pour compositions de lavage lamellaires Download PDF

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Publication number
WO2025140884A1
WO2025140884A1 PCT/EP2024/086636 EP2024086636W WO2025140884A1 WO 2025140884 A1 WO2025140884 A1 WO 2025140884A1 EP 2024086636 W EP2024086636 W EP 2024086636W WO 2025140884 A1 WO2025140884 A1 WO 2025140884A1
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WO
WIPO (PCT)
Prior art keywords
weight
composition
concentrate composition
surfactant
oil
Prior art date
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Pending
Application number
PCT/EP2024/086636
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English (en)
Inventor
Megan JANKOVSKY
Teanoosh Moaddel
Douglas HIBAN
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 Global IP Ltd
Unilever IP Holdings BV
Conopco Inc
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
Conopco Inc
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Publication of WO2025140884A1 publication Critical patent/WO2025140884A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/342—Alcohols having more than seven atoms in an unbroken chain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A61K8/442—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof substituted by amido group(s)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A61K8/466—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfonic acid derivatives; Salts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60—Sugars; Derivatives thereof
    • A61K8/604—Alkylpolyglycosides; Derivatives thereof, e.g. esters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/731—Cellulose; Quaternized cellulose derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/30—Characterized by the absence of a particular group of ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/596—Mixtures of surface active compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/88—Two- or multipart kits
    • A61K2800/882—Mixing prior to application

Definitions

  • the present invention is directed to a dilutable concentrate composition.
  • the composition is pourable, comprises at least three anionic surfactants and is suitable to formulate substantially free of at least one of sulfate-based surfactants, parabens, phthalates, hydantoins, acrylate-based thickeners, dioxanes, silicones or a combination thereof.
  • the dilutable concentrate composition of the present invention surprisingly results in a stable lamellar wash composition after being diluted.
  • Such a lamellar wash composition is stable, mild, has excellent sensory attributes and eliminates the need for single-use plastic.
  • Liquid based cleansing compositions such as shampoos and body washes, are common and enjoyed by many consumers. Such compositions typically have water as the predominant ingredient, and they are often sold in plastic bottles, sachets or tubes. The compositions are conventionally formulated to have a viscosity that is customary for consumer use and easy for evacuation from the package they are sold in.
  • This invention is directed to a dilutable concentrate composition that comprises at least three anionic surfactants.
  • the concentrate composition is easy to pour and dilute, and unexpectedly, results in a stable lamellar wash composition after being diluted.
  • the concentrate composition can be used as a composition that is diluted as needed by a consumer to yield a just in time wash (i.e., in a consumer’s hands), can be diluted with water in refill packaging by a consumer to ensure a reduction in plastic waste, can be diluted within a manufacturing facility or provided in a refill kiosk for consumers to subsequently dilute.
  • the present invention is directed to a dilutable concentrate composition
  • a dilutable concentrate composition comprising: a) an anionic surfactant system comprising: i) a first anionic surfactant comprising an anionic saccharide-based surfactant or an anionic saccharide-based surfactant, and a C10-C20 lactylate, a C10-C20 glycolate or both and with the proviso that when the lactylate, glycolate or both and saccharide-based surfactants are present, the first anionic surfactant is at least 40% by weight anionic saccharride-based surfactant based on total weight of the first anionic surfactant; ii) a second anionic surfactant, the second anionic surfactant being a N-acyl taurate; iii) a third anionic surfactant selected from the group consisting of an acyl isethionate, glycinate, glutamate, alkyl sulfate, alkyl
  • the invention is directed to a method for making a lamellar end use composition
  • a method for making a lamellar end use composition comprising the steps of: a) combining the concentrate composition of the second aspect of the invention with water to produce a diluted composition, the concentrate composition having a viscosity from 1 to 7,000 cps; and b) agitating the diluted composition to produce the lamellar end use composition, the end use composition having a viscosity that is greater than the viscosity of the concentrate composition.
  • the end use lamellar composition can have a viscosity from at least 35,000 to 235,000 cps, and preferably, from 37,000 to 225,000 cps, and most preferably, from 38,000 to 210,000 cps (or from 40,000 to 205,000 cps, or from 45,000 to 200,000 cps, or from 45,000 to 180,000 cps or from 50,000 to 165,000 cps).
  • the end use lamellar composition may optionally comprise medicinal or therapeutic agents, but preferably, is a wash which is cosmetic and non-therapeutic such that the wash removes water soluble and water insoluble soils.
  • oil soluble skin benefit agents typically make up to 1.5% by weight of the hydratable composition whereby water-soluble skin benefit agents, when used, typically make up to 10% by weight of the end use composition of the present invention.
  • the dilutable concentrate composition and end use composition typically have a pH greater than 5.75 to 8.5, preferably over 5.85 to 7.5, and most preferably, from 6 to 7 or from 6.1 to 6.9 or from 6.2 to 6.8.
  • Viscosity unless noted otherwise, is taken with a Discovery HR-2 Rheometer using sand blasted plates with a 1000-micron gap and a shear rate of 4-15 s -1 . Viscosity is measured at 25°C.
  • Increase in viscosity means the dilutable concentrate composition will have a starting viscosity that is lower than the final viscosity after water is added and the resulting end use lamellar composition is made.
  • the end use composition is made by combining water and dilutable concentrate composition and mixing (with moderate shear like stirring, swirling or preferably shaking) the same to produce the end use lamellar composition having a viscosity higher than the viscosity of the dilutable concentrate composition it is made from prior to dilution.
  • substantially free of means less than 75 ppm, and preferably, less than 50 ppm, and most preferably, less than 25 ppm or less than 5 ppm or from 0.00001 to 2 ppm or less than 1 ppm or 0.0 (no) ppm dioxane based on total weight of dioxane in the dilutable concentrate composition.
  • the term comprising is meant to encompass the terms consisting essentially of and consisting of.
  • the end use composition of this invention comprising surfactant, water and active is meant to include a composition consisting essentially of the same and a composition consisting of the same.
  • the anionic saccharide- based surfactant suitable for use is typically a mono-, di- or oligosaccharide (sugar) esterified with a moiety having a carboxylic acid group.
  • the anionic saccharide-based surfactant used has the formula: where:
  • R is a C10-C20 alkyl, and preferably, a C12-C18 alkyl, and most preferably, a C14-C16 alkyl; m is 0 or 1 and n is 1 , 2, or 3; each R 1 and R 2 is independently a C1-C3 alkyl, H, or OH wherein both R 1 groups are not simultaneously OH and both R 2 groups are not simultaneously OH and further wherein when m is zero preferably one R 1 group and one R 2 group is OH; and
  • X + is a counter ion that can include K + , Na + , NH4 + or a mixture thereof.
  • the anionic saccharide-based surfactant used is disodium cocoglucoside citrate, disodium cocoglucoside tartrate or a mixture thereof.
  • C10 -C20 lactylate i.e., used optionally as a portion of the first anionic surfactant
  • the same can be a mono- or polylactyl or mixture thereof as lactic acid can, for example, undergo self-esterification.
  • C10-C20 lactylate suitable for use includes lactylic esters of fatty acids represented by the formula: where R a is a C 9 to C 19 hydrocarbon, each R b is independently hydrogen or a C1-3 alkyl, u is an integer from 0 to 3 and Y+ is a counter ion that can include K + , Na + , NH4 + or a mixture thereof.
  • Taurate-based surfactant will typically make up from 5 to 13%, and preferably, from 5.5 to 12%, and most preferably, from 6 to 11 % (or from 6.5 to 10% or from 6.6 to 9.6% or from 6.7 to 8.8%) by weight of the dilutable concentrate composition.
  • the sulfate-based surfactants can include C8-C20 alkyl sulfates and/or C8-C20 alkyl ether sulfates.
  • sodium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl sulfate, ammonium lauryl ether sulfate, sodium pareth sulfate or a mixture thereof may be selected for use.
  • the ethoxy portion is typically from 1 to 3 ethoxy units in length, and often, from 2 to 3 ethoxy units in length.
  • the same can include alkyl sulfonates, alkyl glyceryl ether sulfonates, alkyl alpha olefin sulfonates (hydrocarbons being an alkene, C x H2x, with a double bond in the alpha position) or a mixture thereof.
  • the alkyl portion is from C8-C24, and preferably, from C10-C20, and more preferably, from C12 to Gw or from C12 to Cw or from C14 to Cw.
  • the acyl sarcosinates suitable for use include those having a C8-C20 or Cw-Cw or C12-C18 acyl group.
  • Illustrative examples of the sarcosinates that may optional be used include sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, or a mixture thereof.
  • At least one anionic surfactant that may be used is selected from sodium lauryl sulfosuccinate, sodium myristoyl sulfosuccinate, sodium cocoyl sulfosuccinate, sodium stearoyl sulfosuccinate, sodium laureth sulfosuccinate, sodium pareth sulfosuccinate, disodium laureth sulfosuccinate, disodium lauryl sulfosuccinate, diethylhexyl sodium sulfosuccinate or a mixture thereof.
  • the anionic surfactant used in the composition can include sodium methyl 2-sulfolaurate or disodium 2-sulfolaurate or both.
  • anionic surfactants may be used with the anionic saccharide-based surfactant and taurates described herein, and the cation portion of their salts can include sodium, potassium and ammonium ions or mixtures thereof.
  • amphoteric surfactants suitable for optional use include imidazolines, sodium acyl amphoacetates, sodium acyl amphopropionates, disodium acyl amphodiacetates and disodium acyl amphodipropionates where the acyl (i.e. , alkanoyl group) can comprise a C7-C18 alkyl portion.
  • Illustrative examples of the amphoteric surfactants suitable for use include sodium lauroamphoacetate, sodium cocoamphoacetate, sodium lauroamphoacetate, sodium cocoamphoacetate, cocamphodipropionate or a mixture thereof.
  • Suitable zwitterionic surfactants that may be used in the present invention and within the above general formula include simple betaines of formula:
  • R 6 , R 7 and R 8 are as previously defined.
  • R 6 would, in particular, include a mixture of C7 to C17 alkyl groups and R 7 and R 8 are preferably methyl or ethyl groups, most preferably methyl groups.
  • R 3 ’ is Ce to Cis.
  • zwitterionic surfactant is a sulphobetaine of the formula:
  • R 3 ’, R 6 , R 7 and R 8 are as previously defined.
  • Additional zwitterionic surfactants suitable for use include lauryl hydroxysultaine, cocamidopropyl hydroxy sultaine or mixtures thereof. Such surfactants are made commercially available, and it is within the scope of the invention to employ mixtures of the aforementioned surfactants.
  • zwitterionic surfactants that may be used in the present are C16-20 amidopropyl hydroxysultaines where the C16-20 amidopropyl hydroxysultaine is preferably palmityl, stearyl and/or oleyl amidopropyl hydroxysultaine, and most preferably, palmityl amidopropyl hydroxysultaine.
  • Other suitable zwitterionic surfactants suitable for optional use include behenyl betaine, capryl/capramidopropyl betaine, stearyl betaine, myristyl hydroxysultaine, palmityl hrdroxysultaine, or a mixture thereof.
  • the zwitterionic surfactant used in the compositions of this invention is cocamidopropyl betaine.
  • Zwitterionic surfactant or amphoteric surfactant or both typically makes up from 7.5 to 18%, and preferably, from 8 to 17%, and most preferably, from 9 to 16% (or from 9.5 to 15% or from 10 to 14.5% or from 10.5 to 14%) by weight of the dilutable concentrate composition.
  • less than 95%, and preferably, less than 90%, and most preferably, less than 85% (or less than 80% or from 5 to 22% or from 6 to 20% or from 10 to 15%) by weight of the hydrophobic portion of the surfactants used in the present invention are recovered from petroleum, palm oil, palm kernel oil and/or coconut oil. In another embodiment, from 90 to 100% by weight of the hydrophobic portion of at least one surfactant used herein is not recovered from petroleum, palm oil, palm kernel oil and/or coconut oil.
  • At least 10% or at least 20%, and preferably, at least 30%, and most preferably, from 40 to 100%, or from 50 to 100% (or from 15 to 35% or 10 to 20%) by weight of the surfactants have hydrophobic chain recovered from triglycerides such as those recovered from jojoba, avocado, olive, and nuts, as well as from seed oil (e.g., sunflower, linseed, rapeseed), and especially, from soy bean oil.
  • Suitable cellulosics include hydroxypropyl cellulose, hydroxypropyl methylcellulose, ethylcellulose, sodium carboxy methylcellulose (cellulose gum/carboxymethyl cellulose) and cellulose (e.g. cellulose microfibrils, cellulose nanocrystals or microcrystalline cellulose).
  • Sources of cellulose microfibrils include secondary cell wall materials (e.g. wood pulp, cotton), bacterial cellulose, and primary cell wall materials.
  • Still other thickening agents that may be used include esters of polyalkoxylated polyols and fatty acids.
  • esters of polyalkoxylated polyols and fatty acids include PEG 18 glyceryloleate/cocoate, polyethylene glycol 6000 distearate, INCI name of PEG-150 distearate; PEG 120 methyl glucose dioleate and PEG 120 methylglucose trioleate (GlucomateTM DOE-120 and GlucomateTM VLT made available by Lubrizol); PEG-150 Pentaerythrityl Tetrastearate (CrothixTM, CrothixTM Liquid, and VersathixTM made available by Croda); PEG-150 Polyglyceryl-2 Tristerate (Genapol® LT made available by Clariant); and PEG/PPG- 120/10-Trimethlolpropane Trioleate (Arlypon® TT made available by BASF).
  • Another class of thickening agent that can be used includes crosslinked polyacrylates such as the Carbomers, polyacrylamides such as Sepigel® 305 and taurate copolymers such as Simulgel® EG and Aristoflex® AVC, the copolymers being identified by respective INCI nomenclature as Sodium Acrylate/Sodium Acryloyldimethyl Taurate and Acryloyl Dimethyltaurate/Vinyl Pyrrolidone Copolymer.
  • Another synthetic polymer suitable for optional thickening is an acrylate-based polymer made commercially available by Seppic and sold under the name Simulgel INS100. Calcium carbonate, fumed silica, and magnesium-aluminum-silicate may also be used.
  • compositions of the present invention are substantially free based of thickener that is acrylate derived or based, and preferably, the compositions have less than 0.5% by weight, and most preferably, no (0.0%) by weight of acrylate-based thickener.
  • the thickener used is a cationic polymer.
  • Preferred cationic polymers are quaternary nitrogen-containing polysaccharides, preferably quaternary nitrogen-containing cellulose ethers, such as those described in U.S. Pat. Nos. 3,472,840; 3,962,418; 4,663,159, and U.S. Pat. No. 5,407,919. Particularly preferred are quaternary nitrogen-containing hydroxyethyl celluloses.
  • cationic polymers examples include salts of hydroxyethyl cellulose reacted with a trimethyl ammonium substituted epoxide such as Polyquaternium-10, made commercially available by Dow® as UCARETM Polymer JR- 125, UCARE Polymer JR-400, UCARE Polymer KF, UCARE Polymer JR-30M, UCARE Polymer LR-400, UCARE Polymer LR-30M, UCARE Polymer LK mixtures thereof or the like.
  • a trimethyl ammonium substituted epoxide such as Polyquaternium-10, made commercially available by Dow® as UCARETM Polymer JR- 125, UCARE Polymer JR-400, UCARE Polymer KF, UCARE Polymer JR-30M, UCARE Polymer LR-400, UCARE Polymer LR-30M, UCARE Polymer LK mixtures thereof or the like.
  • cationic polymers include those known as hydrophobically-modified cationic conditioning polymers such as those made commercially available also by Dow® under the names SoftCATTM SL 5, SoftCATSL 30, SoftCATSL 60, SoftCATSL 100, SoftCAT SK-L, SoftCAT SK-M, and SoftCAT SK-H. Included for suitable use in the dilutable concentrate composition of the invention as thickening agent are those cationic polymers referred to as Polyquaternium-7, Polyquaternium-44, Polyquaternium 24 or mixtures thereof.
  • the thickening agent used comprises at least 50%, and preferably, at least 75%, and most preferably, at least 85% (or from 90 to 100% or from 90 to 96% or from 92 to 98% or from 95 to 99.5% or 100%) by weight
  • Polyquaternium-67 (2-hydroxyethyl cellulose ether, reacted with N,N,N- trimethyl-N-oxiranylmethylammonium chloride and N-dodecyl-N,N-dimethyl-N- oxiranylmethylammonium chloride
  • Dow® under the SoftCAT SK-M H name.
  • the amount of thickening agent used in the dilutable concentrate may range from 2.5% to 9%, and preferably, from 3 to 8%, and most preferably, from 4 to 8% (or from 4 to 7.5% or from 4.5 to 7.5% or from 5 to 6.5% or from 5.5 to 6.5%) by weight of the dilutable concentrate composition.
  • the thickener used is all Polyquaternium-67.
  • Nonionic surfactants may optionally be used in the dilutable concentrate composition of the present invention. If used, nonionic surfactants are typically used at levels from 0.2 to 6% (or from 0.2 to 5% or from 0.2 to 4% or from 0.6 to 3% or 0.6 to 1.5%) by weight of the dilutable concentrate composition.
  • the nonionic surfactants which may be used include the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • nonionic surfactant compounds are alkyl (C6-C22) phenol condensates with ethylene oxide, the condensation products of aliphatic (Cs-Cis) 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 nonionic surfactants include long chain tertiary amine oxides, long chain tertiary phosphine oxides, dialkyl sulphoxides, or the like.
  • nonionic surfactants optionally used can include fatty acid/alcohol ethoxylates having the following structures a) HOCH 2 (CH2) S (CH2CH2O) V H or b) HOOC(CH 2 ) c (CH2CH2O)d H; where s and v are each independently an integer up to18; and c and d are each independently an integer from 1 or greater. In an embodiment of the invention, s and v are each independently 6 to 18; c and d are each independently 1 to 30.
  • the nonionic may also include a sugar amide, such as a polysaccharide amide.
  • the surfactant may be one of the lactobionamides described in U.S. Pat. No. 5,389,279 to Au et al., entitled “Compositions Comprising Nonionic Glycolipid Surfactants issued Feb. 14, 1995 or it may be one of the sugar amides described in U.S. Pat. No. 5,009,814 to Kelkenberg, entitled "Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems" issued Apr. 23, 1991.
  • the anionic surfactant used is glycerol monostearate, cocamide monoethanolamine, CMEA, or a mixture thereof which may optionally make up from 0.06 to 0.75% or from 0.1 to 0.65% or from 0.2 to 0.55% by weight of the end use composition made via the present invention.
  • the compositions of the present invention will have no (0.0% by weight) nonionic surfactant.
  • cationic surfactants may optionally be used in the compositions of the present invention.
  • One class of optional cationic surfactants includes heterocyclic ammonium salts such as cetyl or stearyl pyridinium chloride, alkyl amidoethyl pyrrylinodium methyl sulfate, and lapyrium chloride.
  • Tetra alkyl ammonium salts are another useful class of cationic surfactants suitable for optional use.
  • examples include cetyl or stearyl trimethyl ammonium chloride or bromide; hydrogenated palm or tallow trimethylammonium halides; behenyl trimethyl ammonium halides or methyl sulfates; decyl isononyl dimethyl ammonium halides; ditallow (or distearyl) dimethyl ammonium halides, and behenyl dimethyl ammonium chloride.
  • Still other types of cationic surfactants that may be used are the various ethoxylated quaternary amines and ester quats.
  • Examples include PEG-5 stearyl ammonium lactate (e.g., Genamin KSL manufactured by Clariant), PEG-2 coco ammonium chloride, PEG-15 hydrogenated tallow ammonium chloride, PEG 15 stearyl ammonium chloride, dipalmitoyl ethyl methyl ammonium chloride, dipalmitoyl hydroxyethyl methyl sulfate, and strearyl amidopropyl dimethylamine lactate.
  • PEG-5 stearyl ammonium lactate e.g., Genamin KSL manufactured by Clariant
  • PEG-2 coco ammonium chloride PEG-15 hydrogenated tallow ammonium chloride
  • PEG 15 stearyl ammonium chloride dipalmitoyl ethyl methyl ammonium chloride, dipalmito
  • cationic surfactants suitable for optional use include quaternized hydrolysates of silk, wheat, and keratin proteins, and it is within the scope of the invention to use mixtures of the aforementioned cationic surfactants.
  • cationic surfactants will make up no more than 2% by weight of the dilutable concentrate composition. If present, cationic surfactants will typically make up from 0.01 to 0.5%, and more typically, from 0.1 to 0.3% by weight of the end use composition. In another embodiment, the compositions of the present invention have no (0.0% by weight) cationic surfactant.
  • Water makes up from 8 to 38%, and preferably, from 10 to 35%, and most preferably, from 11 to 32% (or 12 to 31% or 12 to 30% or 12 to 29%) by weight of the dilutable concentrate composition.
  • dilutable concentrate and water are combined at a weight ratio (concentrate:water) of 1:1 to 1:6, or from 1 :2 to 1:5, or from 1:2.2 to 1 :4.5 or from 1 :2.5 to 1 :4 or from 1 :2.7 to 1 : 3.5 or from 1:2.9 to 1:3.2 or from 1 :3.
  • a weight ratio concentration:water
  • shearing or agitation is provided (as noted) until a homogeneous lamellar end use wash composition is obtained.
  • Such combining, in no particular order, can occur in the hands of the consumer, in a refill bottle (e.g., a bottle in a home often having a volume of around 0.5 to 1.5 liters) or in a manufacturing facility mixer or vessel so that end use wash composition may be made at a manufacturing facility thereby reducing the amounts of water needed to be shipped to better impact the environment.
  • a refill bottle e.g., a bottle in a home often having a volume of around 0.5 to 1.5 liters
  • a manufacturing facility mixer or vessel so that end use wash composition may be made at a manufacturing facility thereby reducing the amounts of water needed to be shipped to better impact the environment.
  • the water typically is at a temperature from around 10 to 45°C, or from 11 to 42°C or from 12 to 41 °C or from 15 to 30°C.
  • Cosmetic chemists are familiar with appropriate preservatives and routinely choose them to satisfy the preservative challenge test and to provide product stability.
  • Suitable traditional preservatives for use include propionate salts.
  • Suitable preservatives are iodopropynyl butyl carbamate, phenoxyethanol, sodium benzoate, hydroxyacetophenone, ethylhexylglycerine, hexylene glycol, methyl paraben, propyl paraben, imidazolidinyl urea, sodium dehydroacetate, dimethyl-dimethyl (DM DM) hydantoin, benzyl alcohol and mixtures thereof.
  • DM DM dimethyl-dimethyl
  • preservatives suitable for use include sodium dehydroacetate, chlorophenesin and decylene glycol. Preservatives are preferably employed in amounts ranging from 0.08 to 3.6% by weight of the total weight of the dilutable concentrate composition. Also preferred is a preservative system with hydroxyacetophenone alone or in a mixture with other preservatives. Standard emollients, like vicinal diols (e.g., 1,2- hexane diol and/or 1,2-octane diol), may be used with the preservatives. In an embodiment of the invention, the preservative used is sodium benzoate.
  • the preservative used is Galguard® (phenoxyethanol, benzoic acid, capryloyl glycine, undecylenoyl glycine) made available from Galaxy.
  • the preservative used comprises collectively in total less than 25% by weight, and preferably, less than 15% by weight methylchloroisothiazolinone and methylisothiazolinone based on total weight of the preservative used.
  • no methylchloroisothiazolinone and methylisothiazolinone are used in the compositions of the present invention.
  • the preservative used is preferably substantially free of parabens and hydantoins.
  • a fatty alcohol is used with a fatty acid like lauric acid where the mixture of fatty alcohol and fatty acid is from 45 to 80%, and preferably, from 50 to 75%, and most preferably, from 52 to 72% or from 62 to 72% or from 65 to 70% by weight fatty alcohol based on total weight of structurant (i.e., fatty alcohol and fatty acid) in the dilutable concentrate composition.
  • Oils suitable for use in the dilutable concentrate composition include silicone oils and/or mineral oil, but preferably includes oils that are naturally sourced and sustainable like, arachis oil, castor oil, coconut oil, corn oil, cotton seed oil, olive oil, rapeseed oil, safflower seed oil, sesame seed oil, soybean oil, hydrogenated soybean oil, avocado oil, macadamia nut oil, argan oil, pomegranate oil, arganixie oil, moringa oil, blueberry oil, raspberry oil, walnut oil, pecan oil, peanut oil, bayberry oil, mango seed oil, jojoba oil, hydrolyzed jojoba oil, mixtures thereof or the like.
  • oils that are naturally sourced and sustainable like arachis oil, castor oil, coconut oil, corn oil, cotton seed oil, olive oil, rapeseed oil, safflower seed oil, sesame seed oil, soybean oil, hydrogenated soybean oil, avocado oil, macadamia nut oil, argan oil, pomegranate oil,
  • the oil used will be solubilized in the concentrate (in view of the surfactants used) and/or will not be solubilized and have a droplet size from 1 to 500 microns, and preferably, from 2 to 200 microns, and most preferably, from 2 to 60 microns (or from 2 to 30 microns or from 2 to 20 microns or from 2 to 10 microns) in the concentrate where droplet size may be taken with a particle size analyzer, like a commercially available Malvern MS3000 Analyzer.
  • the compositions can optionally have added thereto occlusive that is a semi-solid at 22°C, like petroleum jelly, CAS No. 8009-03-08, whereby such occlusive is a combination of hydrocarbons mainly having carbon chains longer than 25.
  • petroleum jelly is characterized as a composition made predominately of the paraffin series that can be obtained by, for example, dewaxing lubricating oil stock (or crude oil refining) whereby the same melts at temperatures from 35 to 72°C (more often 40 to 70°C) and boils at a temperature of 285°C or higher and often at a temperature between 295 and 325°C.
  • Such occlusive is characterized as a semi-solid 1 that spreads well topically at skin’s natural temperature of 33 to 37°C.
  • Free of polycyclic aromatics the most well-known and best produced petroleum jelly is sold under the brand name Vaseline®.
  • Vaseline® Free of polycyclic aromatics, the most well-known and best produced petroleum jelly is sold under the brand name Vaseline®.
  • Petroleum jelly and petrolatum are meant to be the same.
  • Semi-solid as used herein, means soft like Vaseline®, not pourable at room temperature but spreadable on skin at room temperature.
  • occlusive suitable for use is sold under the name BOTANIJELLYTM and made commercially available by Cargill (INCI hydrogenated vegetable glycerides).
  • Other available occlusives that may be used as occlusive include those sold commercially by Sonneborn under the SonneNaturalTM name and including the J-207, NXG, and PF-1 varieties.
  • occlusive of the soft-solid type may be added to the compositions in a nanoemulsion, thus delivering occlusive of the soft-solid type to the compositions with an oil droplet size from 2 nm to 600 nm, and preferably, from 4 to 200 nm or from 5 to 100 nm or from 8 to 25 nm.
  • oil present in the dilutable concentrate composition ranges from 1.5 to 8.5% by weight of the concentrate, and preferably, from 2 to 7.5%, or from 2 to 7%, and most preferably, from 3 to 6.5% or from 3.5 to 6% or from 3.8 to 5.7% or from 3.8 to 5.5% by weight of the concentrate.
  • Optional skin benefit agents are suitable for use in this invention, and they are limited only to the extent that the agents are capable of being topically applied via a wash composition.
  • oil soluble actives or benefit agents are solubilized in oil or, for example, with the aid of the surfactants used.
  • sunscreens like ethylhexylmethoxycinnamate, bis-ethyl hexyloxyphenol methoxyphenol triazine, 2- ethylhexyl-2-cyano-3,3-diphenyl-2-propanoic acid, drometrizole trisi
  • oil soluble benefit agents suitable for use include resorcinols like 4-hexyl resorcinol, 4-phenylethyl resorcinol, 4-cyclopentyl resorcinol, 4-cyclohexyl resorcinol 4- isopropyl resorcinol or a mixture thereof.
  • resorcinols like 4-hexyl resorcinol, 4-phenylethyl resorcinol, 4-cyclopentyl resorcinol, 4-cyclohexyl resorcinol 4- isopropyl resorcinol or a mixture thereof.
  • 5-substituted resorcinols like 4-cyclohexyl- 5-methylbenzene-1,3-diol, 4-isopropyl-5-methylbenzene-1 ,3-diol, mixtures thereof or the like may be used.
  • oil soluble actives suitable for use include omega-3 fatty acids, omega-6 fatty acids, climbazole, farnesol, ursolic acid, myristic acid, geranyl geraniol, oleyl betaine, cocoyl hydroxyethyl imidazoline, hexanoyl sphingosine, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, terpineol, thymol mixtures thereof or the like.
  • the optional oil soluble benefit agent used is a retinoic acid precursor.
  • the retinoic acid precursor is retinol, retinal, retinyl propionate, retinyl palmitate, retinyl acetate or a mixture thereof. Retinyl propionate, retinyl palmitate and mixtures thereof are typically preferred. Additionally, 12- hydroxystearic acid is often preferred for use.
  • the same or mixtures of actives typically makes up from 0.0 to 1.5%, and preferably, from 0.001 to 1.5%, and most preferably, from 0.05 to 1.2% by weight of the end use composition (i.e. , lamellar end use composition).
  • Fragrances, fixatives, chelators (like EDTA) and exfoliants may optionally be included in the compositions of the present invention.
  • Each of these substances may range from about 0.03 to about 5%, preferably between 0.1 and 3% by weight of the total weight of the end use composition, including all ranges subsumed therein.
  • exfoliants those selected should be of small enough particle size so that they do not impede the performance of any packaging used to dispense the compositions of this invention.
  • emulsifiers having an HLB of greater than 8 may optionally be used.
  • Illustrative examples include Tween, 40, 60, 80, polysorbate 20 and mixtures thereof.
  • emulsifiers for water continuous systems make up from 0.3 to 2.5% by weight of the end use composition.
  • the desired ingredients may be mixed with conventional apparatus under moderate shear and atmospheric conditions, with temperature being from 35 to 80°C.
  • Water is added to the dilutable concnetrate composition to produce the lamellar end use composition.
  • Moderate shear such as shaking (or stirring) in a container will yield the end use composition in less than 5 minutes, preferably in less than 3 minutes, and most preferably, in less than 2 minutes.
  • end use composition is made in less than 1 minute, even preferably, less than 30 seconds.
  • the end use composition will typically comprise 40 to 95%, and preferably, from 50 to 90%, and most preferably, from 60 to 88% by weight water based on total weight of the end use composition.
  • water makes up from 68 to 85% by weight of the end use composition, and in another embodiment, 72 to 80% by weight of the end use composition.
  • the present invention relates in a further aspect to a method to prepare an end use composition, the method comprising the step of diluting the dilutable composition of the present invention with water.
  • the dilutable concentrate composition has a viscosity from 1 to 7,000 cps and upon dilution the viscosity is greater in the end use composition as described.
  • the dilutable concentrate may optionally be packaged in a water-soluble film to make a concentrate pod or sachet.
  • films include polyvinyl alcohol (PVOH) comprising films, including homopolymers thereof (e.g., those substantially having only vinyl alcohol and vinyl acetate monomer units), copolymers thereof and those with one or more other monomer units in addition to vinyl alcohol and vinyl acetate units), and mixtures thereof.
  • PVOH polyvinyl alcohol
  • the film can be modified to dissolve at temperatures from 10 to 65°C, and preferably, from 15 to 60°C, and most preferably, from 20 to 50°C.
  • Additional water soluble polymers for use in addition to the PVOH include modified polyvinyl alcohols, polyacrylates, water-soluble acrylate copolymers, polyvinyl pyrrolidone, polyethyleneimine, pullulan, water-soluble natural polymers including, but not limited to, guar gum, gum Acacia, xanthan gum, carrageenan, and starch, water-soluble polymer derivatives including, but not limited to, modified starches, ethoxylated starch, and hydroxypropylated starch, copolymers of the same and combinations thereof.
  • Still other water-soluble polymers suitable for optional use include polyalkylene oxides, polyacrylamides, polyacrylic acids and salts thereof; celluloses, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts thereof; polyaminoacids, polyamides, gelatines, methylcelluloses, carboxymethylcelluloses and salts thereof; dextrins, ethylcelluloses, hydroxyethyl celluloses, hydroxypropyl methylcelluloses, maltodextrins, and polymethacrylates.
  • the water-soluble polymers, with or without PVOH are commercially available from a variety of suppliers such as MonoSol, Mitsubishi Chemical Corporation or the like.
  • the shape of the pods or sachets is not limited, and they may be made, for example, in the shape of circles, ovals, squares or rectangles.
  • the pods are typically 1.25 to 7 cm in one dimension and 4 to 7.5 cm in the other dimension, and preferably, 2 to 4 cm in height and 2 to 6.5 cm in length, width or diameter, according to the shape selected whereby the films used typically have a weight average molecular weight from 25,000 to 200,000 g/mol and are between 65 and 85 microns, and preferably, from 70 to 80 microns thick.
  • the pods or sachets typically weigh from 12 to 50 grams, and preferably, from 13 to 35 grams, and most preferably, from 13 to 30 grams.
  • Art recognized and commercially available machines are used to seal the pods, and for example, machines that use heat or ultrasonic sealing technologies are used.
  • the concentrate when the concentrate is packaged in pods, the concentrate is often formulated to have a water activity from 0.5 to 0.75, and preferably from 0.55 to 0.7, and most preferably, 0.59 to 0.66, or from 0.59 to 0,64 where water activity (a w ) is the partial vapor pressure of water in a solution divided by the standard state partial vapor pressure of water, measured with a commercially available water activity meter.

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Abstract

L'invention concerne une composition de concentré diluable. La composition peut être versée, appropriée pour un emballage en dosette, facile à diluer, et sensiblement exempte de tensioactifs à base de sulfate. Les tensioactifs utilisés comprennent un tensioactif à base de saccharide anionique et un tensioactif amphotère, un tensioactif zwitterionique ou les deux. La composition de concentré diluable après dilution donne une composition de lavage lamellaire stable ayant une viscosité qui est supérieure au concentré qu'elle est préparée. La composition de concentré diluable peut être utilisée dans de petits volumes à la demande ou peut être diluée avec de l'eau dans un emballage de recharge pour assurer une réduction des déchets plastiques.
PCT/EP2024/086636 2023-12-28 2024-12-16 Composition de concentré diluable pour compositions de lavage lamellaires Pending WO2025140884A1 (fr)

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