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WO2024231079A1 - Compositions nettoyantes concentrées hydratables - Google Patents

Compositions nettoyantes concentrées hydratables Download PDF

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Publication number
WO2024231079A1
WO2024231079A1 PCT/EP2024/060759 EP2024060759W WO2024231079A1 WO 2024231079 A1 WO2024231079 A1 WO 2024231079A1 EP 2024060759 W EP2024060759 W EP 2024060759W WO 2024231079 A1 WO2024231079 A1 WO 2024231079A1
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WO
WIPO (PCT)
Prior art keywords
composition
hydratable
class
polymers
soap
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.)
Pending
Application number
PCT/EP2024/060759
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English (en)
Inventor
Manisha Prashant KHARKAR
Nitish Kumar
Rohini Sukumaran NAIR
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 WO2024231079A1 publication Critical patent/WO2024231079A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • 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
    • 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
    • A61K8/463—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
    • 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
    • A61K8/602—Glycosides, e.g. rutin
    • 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

Definitions

  • the present invention relates to hydratable concentrate compositions and methods for forming stable liquid cleansing formulations therefrom. More particularly the invention relates to a personal cleansing hydratable concentrate surfactant composition.
  • Personal cleansing compositions are available in wide ranging product formats e.g. from soap bars, liquid soap, body-wash compositions and self-foaming compositions to shampoos. Sometimes such cleansing compositions are also included in cleansing wipes.
  • Liquid cleansing formulations have been known since long. There is a growing consumer demand for refill packs of such liquid formulations, however the refill packs do not fully solve the problems or expenses associated with the bottled liquid formulations such that cost of packaging and handling and transport difficulties.
  • compositions which can be reconstituted to obtain stable liquid formulations by consumer are a feasible option which can reduce the costs as well as avoid handling and transporting issues. Nonetheless, such composition also have problems such as shelf life, appearance of the reconstituted liquid formulation, time of reconstitution, uneven reconstitution, separation of phases, settling of gel etc.
  • soap is a consumer desired ingredient for its ultra and squeaky-clean feel and easy rinse off properties that it offers in liquid cleansing systems.
  • the reason for absence of soap in such systems could be attributed to the fact that saponification of high level of fatty acids to form a soap based hydratable concentrate results into very thick mass due to hexagonal phase which is difficult to pour I dispense for dilution at a consumer end.
  • WO2011018337 (Unilever) provides concentrated soap compositions formulated in such a manner that, quite unpredictably, despite high concentration of soap, they have viscosity which allows them to be pumped from, for example, consumer packaging (e.g., bottles) and/or transit or storage points during manufacture (e.g., pipes, storage tanks, etc.). This application provides concentrated direct use compositions which are not suitable for reconstitution.
  • a reconstituable concentrate liquid cleansing composition there are a few important desired characteristics, such as it should be easy to pour into the container or into the suitable carrier system. It should be easy to mix with the carrier for dilution. And it should have desirable viscosity of about 1500 to 10000 cps (1.5 Pa s to 10 Pa s) after reconstitution with the suitable carrier.
  • thickeners & rheology modifying polymers that are compatible at high pH soap-based system & delivering monophasic liquid upon dilution.
  • Addition of thickeners or combinations of thickeners in high soap based system is another challenge during processing. Higher dosage leads to slow dissolution of mix when dispersed in water & also affects the gelling rate.
  • Further conventional personal cleansing compositions are water based liquid products with high level of water (up to 80-90%).
  • the major disadvantages with respect to liquid products are in terms of storage, packaging, the degree of preservation required, leakage during transportation.
  • Liquid cleansing products typically are sold in bottles. The cost of the bottle frequently contributes significantly to the overall cost of the product and increase in use of plastic.
  • present invention discloses a personal cleansing hydratable concentrate composition
  • a personal cleansing hydratable concentrate composition comprising: a. 0.1 to 50 wt% of soap; wherein soap comprises a mixture of salt of long (Ci6 to C30) chain fatty acids and salt of short (C14 or lesser) chain length fatty acids; b. 0.1 to 40 wt% of non-soap surfactant; c. 0.1 to 8.5 wt% electrolyte; d. 20 to 60 wt% water; and e.
  • class-l comprises cellulose-based polymers, and gum-based polymers, mixtures and combinations thereof
  • class-ll comprises acrylic acid based polymers
  • Second aspect of the present invention provides a method of preparing a personal cleansing hydratable concentrate composition according to the first aspect, the method comprising steps of: a. Dispersing class II polymer in a fatty acid phase during neutralisation with alkali under homogenisation b. Followed by addition of non-soap surfactant, chelating agent and the preservative and thickener.
  • Third aspect of the present invention provides an end-use composition
  • personal cleansing hydratable concentrate composition according to the first aspect, the end-use composition comprising: a. 0.1 to 20 wt% of soap; wherein soap comprises a mixture of salt of long (Ci6 to C30) chain fatty acids and salt of short (C14 or lesser) chain length fatty acids; b. 1 to 10 wt% of non-soap surfactant; c. 0.001 to 4 wt% of electrolyte; and d.
  • Fourth aspect of the present invention provides a use of the personal cleansing hydratable concentrate composition according to the first aspect to obtain an end-use composition according to the third aspect.
  • Fifth aspect of the present invention provides a method of making an end-use composition of the third aspect from the personal cleansing hydratable concentrate composition according to the first aspect, the method comprising steps of, taking the hydratable concentrate composition and a container and diluting the hydratable concentrate composition with a liquid carrier such as water with a dilution factor in the range of 1 :1 to 1 :30 to obtain the liquid formulation.
  • a liquid carrier such as water with a dilution factor in the range of 1 :1 to 1 :30 to obtain the liquid formulation.
  • kits for preparing a cleansing formulation comprising: a. at least one pouch of a hydratable concentrate composition according to the first aspect; b. a container intended for reconstitution the hydratable concentrate composition; and c. an instruction manual.
  • Another aspect of the present invention provides a packaged personal care/personal wash product comprising: a container or bottle comprising a label or advertising intended for sale or distribution to consumers; and a hydratable soap composition according to the first aspect of this invention.
  • any particular upper concentration can be associated with any particular lower concentration or amount.
  • the present invention relates to hydratable concentrate compositions and methods for forming stable end-use personal cleansing formulations. More particularly the invention relates to liquid concentrate compositions which are capable of being reconstituted with a suitable liquid carrier such as water.
  • the present invention is directed to a hydratable and lamellar concentrate composition comprising soap, surfactant, and thickener polymers.
  • the concentrate composition is in lamellar phase and transforms to an isotropic wash composition upon dilution.
  • the composition can be used as a concentrate in small volumes and diluted on demand or can be diluted with water in refill packaging to ensure a reduction in plastic waste.
  • the composition comprises high wt% of soap in a low % of water, which is expected to result into a thick mass which is difficult to pour and dilute to make an end-use personal cleansing composition
  • the present composition with its choice of thickener system and ingredients in specified ranges made the composition not only stable at high pH, but an excellent hydratable concentrate which can be easily poured and hydrated or reconstituted to liquid upon dilution, where the composition transforms from lamellar to isotropic form (i.e., microstructure) upon dilution.
  • the hydratable composition is in a lamellar phase which is thick enough as a concentrate for ease of packaging and in-transit and thin enough to pour and handle by the consumer during the process of reconstitution to an end use cleansing composition.
  • this lamellar phase concentrate is diluted according to the methods of the present invention, it transforms into an isotropic liquid which gives consumer the desirable consistency and rheology for usage.
  • Hydratable liquids having the correct rheology, and which are produced by the process of the invention can be sold as a “concentrated liquid product' whereby the consumer can be instructed to dilute the product at home (resulting in both environmentally friendly packaging and tremendous cost savings); or the concentrated liquid can be transported to a different place and later diluted as part of the production process. In the latter case, this allows the producer to produce more cheaply than when normally making liquid soap/syndet composition (e.g., reduction in transportation costs due to use of concentrates rather than transporting heavy water-containing product). As indicated above, tremendous efficiencies between bars and liquids are also found because any excess capacity from bar manufacturing sites may be used to make liquids.
  • a combination of soap and non-soap surfactant usually leads to a thick hexagonal phase which is difficult to pour.
  • Soap in cleansing formulations is highly desired due to it squeaky clean after-feel. It is furthermore difficult to achieve such a combination as a concentrate in less amount of water.
  • the present inventors found that the composition of the present invention with its ingredients in appropriate concentrations leads to a concentrated hydratable composition that is pourable and easily dilutable to form an end-use cleansing composition.
  • the present invention provides a hydratable concentrate surfactant composition
  • a hydratable concentrate surfactant composition comprising: 0.1 to 50 wt% of soap; wherein soap comprises a mixture of salt of long (Ci6 to C30) chain fatty acids and salt of short (C14 or lesser) chain length fatty acids; 0.1 to 40 wt% of non-soap surfactant; 0.1 to 8.5 wt% electrolyte; 20 to 40 wt% water; and 1.0 to 7.5 wt% of a thickener selected from the group of class-l and class-l I polymers, mixtures and combinations thereof; wherein class-l comprises cellulose-based polymers, and gum-based polymers, mixtures and combinations thereof and class-l I comprises acrylic acid based polymers.
  • Hydratable means adding water (i.e. , diluting) to a lamellar concentrate composition that has water to yield a final end use composition that is ready to use.
  • Skin as used herein, is meant to include skin on the arms (including underarms), face, feet, neck, chest, hands, feet legs, buttocks and scalp (including hair).
  • Hydratable and lamellar concentrate surfactant composition (“hydratable composition”) means a lamellar composition that increases in viscosity when water is added to the composition to thereby produce an isotropic end use composition suitable for topical application.
  • the hydratable composition is one which is suitable to have a viscosity from 20 to 11 ,000 cps (0.02 Pa s to 11 Pa s).
  • the hydratable composition typically has a pH from 8 to 10.
  • the hydratable composition further comprises at least 1 wt% of fatty alcohol. It is further preferred that the hydratable composition comprises fatty alcohol in the range of 0.1 to 10 wt%, more preferably 0.1 to 3 wt% and most preferably 0.5 to 2 wt%.
  • Viscosity- Viscosity of the hydratable composition is preferably in the range of 1000cps to 30000cps (1 to 30 Pa s) more preferably in the range of 5000cps to 22000cps (5 to 22 Pa s) and most preferably in the range of 8000cps to 18000cps (8 to 18 Pa s).
  • a preferred embodiment provides a method of preparing the hydratable composition according to the first aspect, the method comprising steps of: Dispersing class II polymer in a fatty acid phase during neutralisation with alkali under homogenisation followed by addition of non-soap surfactant, chelating agent and the preservative and thickener & optionally sensory modifiers. Soap
  • the hydratable concentrate composition has about 0.1 to 50 wt% of soap, more preferably 1 to 40 wt% and most preferably about 15 to 30wt% of soap by weight of the hydratable concentrate composition; wherein soap comprises a mixture of salt of long (Ci6 to C30) chain fatty acids and salt of short (C14 or lesser) chain length fatty acids.
  • the soap composition comprises 1 to 40 wt%, more preferably 2 to 35 wt% and most preferably about 2 to 30 wt% of salt of long (C16 to C30) chain fatty acids.
  • the hydratable concentrate composition 0.1 to 25 wt%, more preferably 1 to 22 wt% and most preferably about 3 to 15 wt% of salt of long (C16 to C30) chain fatty acids.
  • the soap comprises 1 to 75 wt%, more preferably 2 to 70 wt% and most preferably about 3 to 68 wt% of salt of short (C14 or lesser) chain length fatty acids.
  • the hydratable concentrate composition comprises 0.1 to 40 wt%, more preferably 2 to 30 wt% and most preferably about 3 to 25 wt% of salt of short (C14 or lesser) chain length fatty acids.
  • the ratio of salt of long (C16 to C30) chain fatty acids to salt of short (C14 or lesser) chain length fatty acids is in the range of 12 to 88; more preferably 20 to 80 and most preferably 25 to 75.
  • the hydratable composition comprises 0.1 to 40 wt%, more preferably in the range of 1 to 35 wt%, further, more preferably in the range of 3 to 30wt% and most preferably in the range of 5 to 25wt% of non-soap surfactant.
  • the compositions of the present invention may contain anionic surfactants, non-ionic surfactants, cationic surfactants or amphoteric surfactants.
  • the synthetic anionic detergent active which may be used in the invention may be aliphatic sulfonates, such as a primary alkane (e.g., C8-C22) sulfonate, primary alkane (e.g., C8-C22) disulfonate, C8-C22 alkene sulfonate, C8-C22 hydroxyalkane sulfonate or alkyl glyceryl ether sulfonate (AGS); or aromatic sulfonates such as alkyl benzene sulfonate.
  • a primary alkane e.g., C8-C22
  • primary alkane e.g., C8-C22
  • disulfonate C8-C22 alkene sulfonate
  • C8-C22 hydroxyalkane sulfonate C8-C22 hydroxyalkane sulfonate
  • the anionic may also be an alkyl sulfate (e.g., C12-C18 alkyl sulfate) or alkyl ether sulfate (including alkyl glyceryl ether sulfates).
  • alkyl ether sulfates are those having the formula:
  • RO(CH 2 CH 2 O) n SO 3 M wherein R is an alkyl or alkenyl having 8 to 18 carbons, preferably 12 to 18 carbons, n has an average value of greater than 1 .0, preferably lesser than 3; and M is a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium. Ammonium and sodium lauryl ether sulfates are preferred.
  • the anionic may also be alkyl sulfosuccinates (including mono- and dialkyl, e.g., C6-C22 sulfosuccinates); alkyl and acyl taurates, alkyl and acyl sarcosinates, sulfoacetates, C8-C22 alkyl phosphates and phosphates, alkyl phosphate esters and alkoxyl alkyl phosphate esters, acyl lactates, C8-C22 monoalkyl succinates and maleates, sulphoacetates, alkyl glucosides and acyl isethionates, and the like.
  • alkyl sulfosuccinates including mono- and dialkyl, e.g., C6-C22 sulfosuccinates
  • alkyl and acyl taurates alkyl and acyl sarcosinates
  • Sulfosuccinates may be monoalkyl sulfosuccinates having the formula:
  • R 4 CONHCH2CH2O2CCH 2 CH(SO 3 M)CO2l ⁇ /l wherein R 4 ranges from C8-C22 alkyl and M is a solubilizing cation.
  • R 1 CON(CH 3 )CH 2 CO 2 M, wherein R 1 ranges from C8-C20 alkyl and M is a solubilizing cation.
  • Taurates are generally identified by formula:
  • R 2 CONR 3 CH 2 CH 2 SO 3 M wherein R 2 ranges from C8-C20 alkyl, R 3 ranges from C1-C4 alkyl and M is a solubilizing cation.
  • the inventive cleansing composition may contain Cs-Cis acyl isethionates. These esters are prepared by reaction between alkali metal isethionate with mixed aliphatic carboxylic acids having from 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the mixed carboxylic acids have from 12 to 18 carbon atoms and up to 25% have from 6 to 10 carbon atoms.
  • the acyl isethionate may be an alkoxylated isethionate such as is described in llardi et al., U.S. Patent No. 5,393,466, titled “Fatty Acid Esters of Polyalkoxylated isethonic acid; issued February 28, 1995; hereby incorporated by reference.
  • This compound has the general formula:
  • R C-O(O)-C(X)H-C(Y)H 2 -(OCH-CH 2 )m-SO 3 M + wherein R is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are hydrogen or an alkyl group having 1 to 4 carbons and M + is a monovalent cation such as, for example, sodium, potassium or ammonium.
  • anionic surfactants for the compositions of the present invention are selected from the group of sulfonic acids, their salts; alkyl ether sulfates; mixtures and combinations thereof.
  • Most preferable anionic surfactants may include sodium lauryl ether sulfate, its derivatives such as ethylene oxide derivatives and the likes.
  • the hydratable composition comprises anionic surfactant in the range of 0.1 to 30 wt%, more preferably in the range of 1 to 25 wt%, further more preferably in the range of 8 to 22 wt% and most preferably in the range of 12 to 20wt%.
  • the cationic surfactants for the purposes of the present invention are, for example, quarternary surfactants, these include, but are not limited to: benzalkonium chloride, alkyl betaine, alkylamidopropyl betaine, alkyl- amidopropylhydroxysultaine alkylamines, alkylimidazoles and ethoxylated amines.
  • the hydratable composition comprises cationic surfactant in the range of 0.1 to 30 wt%, more preferably in the range of 1 to 25 wt%, further more preferably in the range of 8 to 22 wt% and most preferably in the range of 12 to 20wt%.
  • amphoteric surfactants for the purposes of the present invention are, for example, acyl I dialkylethylene diamines, for example sodium acylamphoacetate, Cocamidopropyl betaine (CAPB), disodium acyl amphodipropionate, disodium alkylamphodiacetate, sodium acrylamphohydroxypropyl sulfonate, disodium acrylamphodiacetate and sodium acrylamphopropionate, N-alkylamino acids, for example aminopropyl alkylglutamide, alkylaminopropionic acid, sodium alkylimidodipropionate and lauroamphocarboxyglycinate.
  • the hydratable composition comprises amphoteric surfactant in the range of 1 to 25wt%, more preferably in the range of 12 to 17 wt%, and most preferably in the range of 10 to 15wt%.
  • compositions will comprise a combination of anionic synthetic and amphoteric Surfactant (e.g., betaine), especially when anionic comprises 50% or greater of such mixture of synthetics.
  • anionic synthetic and amphoteric Surfactant e.g., betaine
  • Nonionic surfactant(s) may be used in the cleansing composition of the present invention as a co-surfactant.
  • Nonionic surfactants are preferably used at levels as low as 5, 7.5 or 10% by wt. and at levels as high as 20, 25 or 30% by wt.
  • the nonionic surfactants which may be used include in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • nonionic detergent compounds are alkyl (C6-C22) phenols ethylene oxide condensates, 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 so-called nonionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulphoxide, and the like.
  • 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. Patent No. 5,389,279 to Au et al. titled “Compositions Comprising Nonionic Glycolipid Surfactants issued February 14, 1995; which is hereby incorporated by reference or it may be one of the sugar amides described in Patent No. 5,009,814 to Kelkenberg, titled “Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems” issued April 23, 1991 ; hereby incorporated into the subject application by reference.
  • the non-ionic surfactants for the purposes of the present invention are, for example, Alkanolamides, such as Cocamide MEA DEA/ MIPA, esters produced by the esterification of carboxylic acids with ethylene oxide, glycerol, sorbitan or other alcohols, ethers, for example ethoxylated alcohols, ethoxylated lanolin, ethoxylated polysiloxanes, propoxylated POE ethers and alkyl polyglycosides such as lauryl glucoside, decyl glycoside and cocoglycoside.
  • the hydratable composition comprises non-ionic surfactant in the range of 1 to 25wt%, more preferably in the range of 12 to 18 wt%, and most preferably in the range of 10 to 15wt%.
  • Suitable surfactants may comprise one or more of sodium cocoyl isethionate, Sodium Lauryl Sulfate, disodium lauryl sulfosuccinate, lauryl glucoside, myristyl glucoside, decyl glucoside, sodium sulfate, sodium silicate, Cocamidopropyl betaine, sodium coco sulfate, sodium lauryl sulfate.
  • the surfactant may comprise sodium cocoyl isethionate (e.g., Jordapon® SCI powder).
  • the surfactant may comprise disodium lauryl sulfosuccinate (e.g., Plantapon® SUS).
  • the surfactant may comprise a mixture of lauryl glucoside, myristyl glucoside, sodium sulfate, sodium silicate, and sodium coco sulfate (e.g., Glucopol® 50 G).
  • the surfactant may comprise sodium lauryl sulfate (e.g., Texapon® Z-95 P). Suitable surfactants are not limited to the ones enumerated herein and may include other surfactants that are in powder form prior to their incorporation into the formulation and are water-soluble to maximize the cleansing potential of the formulation.
  • alkoxylated nonionic surfactants which are a class of nonionic surfactants, are defined specifically as co-surfactants.
  • alkoxylated nonionic surfactants, which are co-surfactants are differentiated from the other nonionic surfactants defined previously, in that alkoxylated nonionic surfactants, which are co-surfactants, contain at least 2 or more alkylene oxide groups.
  • nonionic surfactants with EG less than 2 are considered to be surfactants as described in the paragraphs above.
  • alkoxylated nonionic surfactants include, but are not limited to, condensation products of linear or branched fatty chain alcohols, acids, phenols, esters, glycerides, amines and amides.
  • the preferred co-surfactants are ethoxylated nonionic surfactants with ethylene oxide (EO) groups in the range of 2 -12 and most preferably from 2 to 6.
  • Especially preferred nonionic surfactants are ethoxylated fatty amides with the (EO) groups in the range of 2- 12, most preferably 2 to 6.
  • the present composition comprises co-surfactants in the range of 0 to 20wt%, more preferably 2 to 15 wt% and most preferably 3 to 10 wt%.
  • the hydratable composition of the present invention comprises an electrolyte.
  • the electrolyte for the purposes of the present invention include inorganic salts (e.g., sodium chloride, potassium chloride) as well as organic salts (e.g., sodium citrate).
  • inorganic salts e.g., sodium chloride, potassium chloride
  • organic salts e.g., sodium citrate
  • other salts include phosphates, sulfates and other halogen ion salts.
  • the counter ions of such salts can be sodium or other monovalent cations as well as di- and trivalent cations.
  • the hydratable composition of the present invention comprises 0.1 to 15 wt% of, more preferably 1 to 10 wt% and most preferably 2 to 8 wt% of electrolyte.
  • the end-use composition of the present invention comprises 0.1 to 5 wt% of, more preferably 0.2 to 4 wt% and most preferably 0.5 to 3 wt% of electrolyte.
  • the hydratable composition of the present invention comprises a chelating agent. It is preferred that the chelating agent in the hydratable composition is present in the range of 0.1 to 3 wt% by weight of the hydratable composition, more preferably in the range of 0.2 to 2.5 wt% by weight of the hydratable composition, and most preferably in the range of 0.2 to 1 .5 wt% by weight of the hydratable composition.
  • the chelating agent in the hydratable composition is present at least 0.1 wt%, more preferably at least 0.8 wt%, and most preferably at least 1 wt% by weight of the hydratable composition.
  • the chelating agent in the hydratable composition is present at most 3 wt%, more preferably at most 2.5 wt%, further preferably at most 2 wt% and most preferably at most 1 .5 wt% by weight of the hydratable composition.
  • the preferred chelating agents are as follows (names followed by their abbreviation in parenthesis):
  • Ethylene Diamine Tetra Acetic acid EDTA
  • Disodium ethylenediaminetetraacetic acid Diethylene Triamine Penta Acetic acid (DTPA), Ethane-1 -hydroxy-1 ,1 -diphosphonate (EHDP), Ethylene Diamine-N,N'-Disuccinate (EDDS), Nitrilo Triacetic Acid (NTA), Sodium Imino Disuccinate (IDS), Ethylene Glycol-bis-(2-aminoethyl)-N,N,N', N'-Tetra Acetic acid (EGTA), Methyl Glycine Diacetic Acid (MGDA), N-(2-hydroxyethyl) Ethylene Diamine N,N',N'-Thacetic acid) (HEDTA), Ethylene Diamine Tetra Methylene Phosphonic acid (EDTMP), Diethylene Thamine-Penta-Methylene Phosphonic acid (DTPMP), Glutamic acid-N,N-Diacetic
  • Trisodium Ethylene Diamine Disuccinate Trisodium Ethylene Diamine Disuccinate, Tetra-sodium-lmino disuccinate, Glutamic acid-N,N diacetic acid tetra sodium salt, 2-hydroxyethyl iminodiacetic acid, Sodium salt (disodium ethanol diglycinate), Tetrasodium 3-hydroxy-2,2 imino disuccinate, Trisodium methylglycine diacetic acid, L- Aspartate-N,N-diacetic acid tetrasodium salt.
  • the more preferred chelating agents are salt of Ethylene Diamine Tetra Acetic acid (EDTA) and salt of Diethylene Thamine Penta Acetic acid (DTPA).
  • Preferred salts of EDTA are disodium Ethylene Diamine Tetra Acetic acid and tetrasodium Ethylene Diamine Tetra Acetic acid.
  • Preferred salt of DTPA is the pentasodium Diethylene Thamine Penta Acetic acid.
  • the chelating agent suitable for the compositions of the present invention are selected from the group of Ethylene Diamine Tetra Acetic acid (EDTA), or Diethylene Triamine Penta Acetic acid (DTPA), their derivatives and combinations, mixtures thereof.
  • EDTA Ethylene Diamine Tetra Acetic acid
  • DTPA Diethylene Triamine Penta Acetic acid
  • the EDTA derivative is selected from tetrasodium EDTA, trisodium EDTA, disodium EDTA, and combinations thereof.
  • the DTPA derivative is selected from tetrasodium DTPA, trisodium DTPA, disodium DTPA, and combinations thereof.
  • the composition of the hydratable composition of the present invention comprises a preservative. It is preferred that the preservative in the hydratable composition is present in the range of 0.1 to 3wt% by weight of the hydratable composition, more preferably in the range of 0.1 to 2wt-by weight of the hydratable composition, and most preferably in the range of 0.1 to 1 w% by weight of the hydratable composition. Very useful examples of the preservatives suitable for the compositions of the present inventions, but are not limited to, chlorite components, sorbic acid components and mixtures thereof.
  • chlorite components useful as preservatives in accordance with the present invention include stabilized chlorine dioxide (SCD), metal chlorites, such as alkali metal and alkaline earth metal chlorites, and the like and mixtures therefor.
  • SCD stabilized chlorine dioxide
  • metal chlorites such as alkali metal and alkaline earth metal chlorites, and the like and mixtures therefor.
  • Technical grade (or USP grade) sodium chlorite is a very useful preservative component. The exact chemical composition of many chlorite components, for example, SCD, is not completely understood.
  • Suitable preservatives include but not limited to commonly used in cosmetics, such as dibromdicyanobutane (2-bromo-2-bromomethylglutarodinitrile), phenoxyethanol, 3-lod-2-propinylbutylcarbamate, 2-bromo-2-nitro-propane-1 , 3-diol, imidazolidinyl hamstoff, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-chloroacetamide, benzalkonium chloride, benzyl alcohol.
  • cosmetics such as dibromdicyanobutane (2-bromo-2-bromomethylglutarodinitrile), phenoxyethanol, 3-lod-2-propinylbutylcarbamate, 2-bromo-2-nitro-propane-1 , 3-diol, imidazolidinyl hamstoff, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-chloroacetamide
  • the preservative is selected from Methylisothiazolinone, Methylchloroisothiazolinone, 3-iodo-2-propynl butyl carbamate (IPBC), DMDM hydantoin and benzyl alcohol and) or mixtures or combinations thereof.
  • composition of the hydratable composition of the present invention may further comprise a fatty alcohol.
  • Fatty alcohols in the context of the invention are primary aliphatic, branched or unbranched, saturated or unsaturated, optionally hydroxysubstituted alcohols with a Ce-54 hydrocarbon radical.
  • Typical examples are caproic alcohol, caprylic alcohol, 2-ethylhexyl alcohol, capric alcohol, lauryl alcohol, isotridecyl alcohol, myristyl alcohol, cetyl alcohol, isocetyl alcohol, palmitoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, linolyl alcohol, linolenyl alcohol, elaeostearyl alcohol, ricinolyl alcohol, hydroxystearyl alcohol, dihydroxystearyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol and brassidyl alcohol and the technical mixtures thereof obtained, for example, in the high-pressure hydrogenation of technical methyl esters based on fats and oils or aldehydes from Roelen's oxo synthesis and as monomer fraction in the dimerization of unsaturated fatty alcohols.
  • the fatty alcohol component for the present invention is selected from the group of C12- 24 fatty alcohols are preferred for the purposes of the invention.
  • a particularly preferred embodiment is characterized by the use of technical C12-22 fatty alcohols such as, for example, lauryl alcohol, myristyl alcohol, cetylstearyl alcohol, isostearyl alcohol and Guerbet alcohols of corresponding chain length. It is particularly preferred to use C12 to C22 fatty alcohols, preferably C12 or C14 in a quantity of 0.1 to 20% by weight, more preferably 1 to 15wt% and most preferably 0.1 to 10% by weight, based on the hydratable composition.
  • the hydratable composition of the present invention comprises water in the range of 20 to 60 wt%, more preferably 25 to 50 wt% and and most preferably from 30 to 45 wt%.
  • the hydratable composition of the present invention comprises 1.0 to 7.5 wt%, more preferably 1.5 to 6 wt% and most preferably 2 to 4 wt%.
  • the thickener is preferably selected from the group of class-l and class-ll polymers, mixtures and combinations thereof; wherein class-l comprises cellulose-based polymers, and gum-based polymers, mixtures and combinations thereof and class-ll comprises acrylic acid-based polymers. It is preferred that the ratio of class-ll to class-l polymers range from 1 :1 to 1 :20 more preferably 1 :1 to 1 :15 and most preferably 1 :1 to 1 :10.
  • the hydratable composition comprises 0.1 to 7 wt% more preferably 0.3 to 4 wt% and most preferably 0.8 to 5 wt% of class-l polymer.
  • the hydratable composition comprises 0.1 to 7 wt% more preferably 0.3 to 4 wt% and most preferably 0.8 to 5 wt% of class-ll polymer.
  • the acrylic acid-based Class II polymer is a cross-linked polyacrylic acid polymer.
  • the class I polymers of the present invention are cationic polysaccharide polymers, such as cationic cellulose derivatives, cationic starch derivatives, and cationic guar gum derivatives.
  • Cationic polysaccharide polymers suitable for use in compositions of the invention include those of the formula:
  • A is an anhydroglucose residual group, such as a starch or cellulose anhydroglucose residual.
  • R is an alkylene, oxyalkylene, polyoxyalkylene, or hydroxyalkylene group, or combination thereof.
  • R1 , R2 and R3 independently represent alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, or alkoxyaryl groups, each group containing up to about 18 carbon atoms.
  • the total number of carbon atoms for each cationic moiety i.e. , the sum of carbon atoms in R1 , R2 and R3 is preferably about 20 or less, and X is an anionic counterion.
  • Cationic cellulose is available from Amerchol Corp. (Edison, N.J., USA) in their Polymer JR (trade mark) and LR (trade mark) series of polymers, as salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, referred to in the industry (CTFA) as Polyquaternium 10.
  • CTFA trimethyl ammonium substituted epoxide
  • Another type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium-substituted epoxide, referred to in the industry (CTFA) as Polyquaternium 24. These materials are available from Amerchol Corp. (Edison, N.J. USA) under the tradename Polymer LM-200.
  • Suitable cationic polysaccharide polymers include quaternary nitrogen-containing cellulose ethers (e.g. as described in U.S. Pat. No. 3,962,418), and copolymers of etherified cellulose and starch (e.g. as described in U.S. Pat. No. 3,958,581).
  • a particularly suitable type of cationic polysaccharide polymer that can be used is a cationic guar gum derivative, such as guar hydroxypropyltrimonium chloride (Commercially available from Rhone-Poulenc in their JAGUAR trademark series).
  • Examples are JAGUAR C13S, which has a low degree of substitution of the cationic groups and high viscosity.
  • JAGUAR C15 having a moderate degree of substitution and a low viscosity
  • JAGUAR C17 high degree of substitution, high viscosity
  • JAGUAR C16 which is a hydroxypropylated cationic guar derivative containing a low level of substituent groups as well as cationic quaternary ammonium groups
  • JAGUAR 162 which is a high transparency, medium viscosity guar having a low degree of substitution.
  • the cationic polymer is selected from cationic cellulose and cationic guar derivatives.
  • Particularly preferred cationic polymers are JAGUAR C13S, JAGUAR C15, JAGUAR C17 and JAGUAR C16 and JAGUAR C162.
  • Class I polymers of the present invention comprise cellulose-based polymers such as carmellose, carmellose sodium, crystalline cellulose/carmellose sodium, hydroxypropyl cellulose, hypromellose (hydroxypropyl methylcellulose), methyl cellulose, carboxymethyl ethyl cellulose, hydroxyethyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose acetate succinate, hydroxypropyl methyl cellulose phthalate, and a fumaric acid/stearic acid/polyvinyl acetal diethylamino acetate/hydroxypropyl methyl cellulose mixture.
  • cellulose-based polymers such as carmellose, carmellose sodium, crystalline cellulose/carmellose sodium, hydroxypropyl cellulose, hypromellose (hydroxypropyl methylcellulose), methyl cellulose, carboxymethyl ethyl cellulose, hydroxyethyl cellulose, hydroxyethyl methyl cellulose, hydroxypropy
  • Class II polymers of the present invention comprise acrylic-based polymers such as an ethyl acrylate/methyl methacrylate copolymer dispersion, an aminoalkyl methacrylate copolymer, a methacrylic acid copolymer, a 2-methyl-5-vinylpyridine methyl acrylate/methacrylic acid copolymer, a dried methacrylic acid copolymer, and a dimethyl aminoethyl methacrylate/methyl methacrylate copolymer.
  • acrylic-based polymers such as an ethyl acrylate/methyl methacrylate copolymer dispersion, an aminoalkyl methacrylate copolymer, a methacrylic acid copolymer, a 2-methyl-5-vinylpyridine methyl acrylate/methacrylic acid copolymer, a dried methacrylic acid copolymer, and a dimethyl aminoethyl methacrylate/methyl methacrylate copolymer.
  • the end-use composition of the present invention comprises hydratable concentrate composition according to anyone of the preceding claims 1 to 10, the end-use composition comprising: 1 to 20 wt% of soap; wherein soap and fatty acid comprise a mixture of long (Ci6 to C30) and short (C14 or lesser) chain length mixture; 1 to 10 wt% of non-soap surfactant; 0.001 to 4 wt% of electrolyte; and 0.1 to 4 wt% of a thickener selected from the group of class-l and class-ll polymers, mixtures and combinations thereof; wherein class-l comprises cellulose-based polymers, and gum-based polymers, mixtures and combinations thereof and class-ll comprises acrylic acid-based polymers.
  • the end-use composition may preferably comprise 0.001 to 0.5 wt% of chelating agent, more preferably 0.01 to 4 wt% and most preferably 0.1 to 3.5wt%.
  • the end-use composition may further preferably comprise 0.01 to 3 wt% preservative, more preferably 0.01 to 2.5 wt% and most preferably 0.1 to 2wt%.
  • An end use composition is one suitable to be wiped or washed off, and preferably, washed off with water.
  • the end use composition can be a home care cleaning composition but is preferably a personal cleansing composition such as a shampoo, make-up wash, facial wash, hand wash, or personal care and liquid body wash.
  • the end use composition can have a viscosity from 100 to 20,000 cps (0.1 to 20 Pa s) when a body wash or shampoo and from 1 ,800 to 7,000 cps (1.8 to 7 Pa s), 1 ,900 to 6,500 cps (1.9 to 6.5 Pa s) or from 2,000 to 6,000 cps (2 Pa s to 6 Pa s) when a body wash.
  • the end use composition may, optionally, comprise medicinal or therapeutic agents, but preferably, is a wash which is cosmetic and non- therapeutic to remove dirt, oil or the like from surfaces including skin and hair.
  • the end use composition is a home care composition like a glass, tabletop or toilet cleaning composition.
  • the end use composition is a shampoo composition.
  • the end use composition is a personal wash composition, and therefore, a liquid body wash.
  • the end use composition of the present invention may optionally comprise skin benefit ingredients added thereto such as emollients, vitamins and/or derivatives thereof, resorcinols, retinoic acid precursors, colorants, moisturizers, sunscreens, antibacterial agents, mixtures thereof or the like.
  • the skin benefit ingredients may be water or oil soluble. If used, oil soluble skin benefit agents typically make up to 2.5% by weight of the hydratable composition whereby water-soluble skin benefit agents, when used, typically make up to 15% by weight of the hydratable composition of the present invention.
  • the end use composition typically have a pH from 8 to 10.5. Viscosity, unless noted otherwise, is taken with a Brookfield viscometer using Spindle number 3 to 5 at 20 rpm at 25 °C. Increase in viscosity means the hydratable composition of the present invention will have a starting viscosity that is lower than the final viscosity after water is added and the resulting end use composition is made.
  • the end use composition is made by combining water and hydratable composition and mixing (with moderate shear like stirring, preferably shaking by hand) the same to produce the end use composition having a higher viscosity than the hydratable concentrate it is made from.
  • the hydratable composition may be applied directly to, for example, a consumer and when water and shear are applied (like, for example, shearing with the hand and water from a sink or shower) the desired end use composition may be made.
  • a preferred embodiment provides a method of making an end-use personal cleansing composition from the hydratable concentrate composition according to the first aspect, the method comprising steps of, taking the hydratable concentrate composition and a container and diluting the hydratable concentrate composition with a liquid carrier with a dilution factor in the range of 1 :1 to 1 :30 to obtain the liquid formulation.
  • inventive cleansing composition of the invention may include 0 to 15% by wt. optional ingredients as follows: perfumes; sequestering agents, such as tetrasodium ethylenediaminetetraacetate (EDTA), EHDP or mixtures in an amount of 0.01 to 1 %, preferably 0.01 to 0.05%; and soluble coloring agents, and the like; all of which are useful in enhancing the appearance or cosmetic properties of the product.
  • perfumes such as tetrasodium ethylenediaminetetraacetate (EDTA), EHDP or mixtures in an amount of 0.01 to 1 %, preferably 0.01 to 0.05%
  • soluble coloring agents such as tetrasodium ethylenediaminetetraacetate (EDTA), EHDP or mixtures in an amount of 0.01 to 1 %, preferably 0.01 to 0.05%
  • soluble coloring agents and the like
  • compositions may further comprise antimicrobials such as 2-hydroxy-4,2', 4' trichlorodiphenylether (DP300); preservatives such as methylisothiazolinone I methylchloroisothiazolinone (Kathon, MIT), dimethyloldimethylhydantoin I iodopropynyl butylcarbamate (Glydant XL1000,), parabens, sorbic acid etc., and the like.
  • antimicrobials such as 2-hydroxy-4,2', 4' trichlorodiphenylether (DP300); preservatives such as methylisothiazolinone I methylchloroisothiazolinone (Kathon, MIT), dimethyloldimethylhydantoin I iodopropynyl butylcarbamate (Glydant XL1000,), parabens, sorbic acid etc., and the like.
  • antimicrobials such as 2-hydroxy-4
  • compositions may also comprise coconut acyl mono- or diethanol amides as suds boosters, and strongly ionizing salts such as sodium chloride and sodium sulfate may also be used to advantage for increasing viscosity.
  • strongly ionizing salts otherwise known as electrolytes, will be present at less than 5, 4, 3, or 1 % by wt.
  • Antioxidants such as, for example, butylated hydroxytoluene (BHT) and the like may be used advantageously in amounts of about 0.01% or higher if appropriate.
  • BHT butylated hydroxytoluene
  • emollient is defined as a substance which softens or improves the elasticity, appearance, and youthfulness of the skin (stratum corneum) by either increasing its water content, adding, or replacing lipids and other skin nutrients; or both, and keeps it soft by retarding the decrease of its water content.
  • Moisturizers that also are Humectants such as polyhydric alcohols, e.g. glycerin and propylene glycol, and the like; and polyols such as the polyethylene glycols such as Polyox WSR N-60K (PEG-45M) and the like are used in a preferred embodiment of the invention. Humectants are preferably used at a minimum of 0.5, 2.5 or 5 % by wt. and a maximum of 15, 20 or 25% by wt.
  • Hydrophobic emollients are used in a preferred embodiment of the invention. Preferred are hydrophobic emollient(s) with weight average particle sizes below either 1000 or 500 microns in diameter and are defined herein as “finely dispersed oils”. These emollients are preferably used at a minimum of 0.5, 2.5 or 5 % by wt. and a maximum of 15, 20 or 25% by wt.
  • Suitable hydrophobic emollients include but are not limited to the following:
  • silicone oils and modifications thereof such as linear and cyclic polydimethylsiloxanes; amino, alkyl, alkylaryl, and aryl silicone oils;
  • fats and oils including natural fats and oils (triglycerides) such as jojoba, soybean, sunflower, rice bran, avocado, almond, olive, sesame, persic, castor, coconut, mink oils; cacao fat; beef tallow, lard; hardened oils obtained by hydrogenating the aforementioned oils; and synthetic mono, di and triglycerides such as myristic acid glyceride and 2-ethylhexanoic acid glyceride;
  • natural fats and oils triglycerides
  • jojoba such as jojoba, soybean, sunflower, rice bran, avocado, almond, olive, sesame, persic, castor, coconut, mink oils; cacao fat; beef tallow, lard; hardened oils obtained by hydrogenating the aforementioned oils
  • synthetic mono, di and triglycerides such as myristic acid glyceride and 2-ethylhexanoic acid glyceride;
  • waxes such as carnauba, spermaceti, beeswax, lanolin, and derivatives thereof;
  • hydrocarbons such as petrolatum, polybutene, liquid paraffins, microcrystalline wax, ceresin, squalene, pristan and mineral oil;
  • esters such as cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate, glycerol monostearate, glycerol distearate, glycerol tristearate, alkyl lactate, alkyl citrate and alkyl tartrate; (h) essential oils and extracts thereof such as mentha, jasmine, camphor, white cedar, bitter orange peel, ryu, turpentine, cinnamon, bergamot, citrus unshiu, calamus, pine, lavender, bay, clove, hiba, eucalyptus, lemon, starflower, thyme, peppermint, rose, sage, sesame, ginger, basil, juniper, lemon grass, rosemary, rose
  • the hydratable compositions of the present invention may also comprise various benefit agents and/or other ingredients which can typically be used in flowable, liquid personal care formulations.
  • Benefit agent may be any material that has potential to provide an effect on, for example, the skin.
  • the benefit agent may be water insoluble material that can protect, moisturize or condition the skin upon deposition from compositions of invention.
  • These may include silicon oils and gums, fats and oils, waxes, hydrocarbons (e.g., pet rolatum), higher fatty acids and esters, vitamins, Sunscreens. They may include any of the agents, for example, mentioned at column 8, line 31 to column 9, line 13 of U.S. Pat. No. 5,759,969, hereby incorporated by reference into the subject application.
  • the benefit agent may also be a water soluble material such as glycerin, polyols (e.g., Saccharides), enzyme and Cl- or B-hydroxy acid either alone or entrapped in an oily benefit agent.
  • the compositions may also comprise perfumes, sequestering agents such as EDTA or EHDP in amounts 0.01 to 1%. preferably 0.01 to 0.05%; coloring agents, opacifiers and pearlizers such as Zinc Stearate, magnesium Stearate, TiO, mica, EGMS (ethylene glycol monostearate) or styrene/acrylate copolymers.
  • compositions may further comprise antimicrobials such as 2-hydroxy 4.2'4'trichlorodiphenylether (DP300),3,4, 4'- trichlorocarbanilide, essential oils and preservatives such as dimethylhydantoin (Glydant XL 1000), parabens, sorbic acid, etc.
  • antimicrobials such as 2-hydroxy 4.2'4'trichlorodiphenylether (DP300),3,4, 4'- trichlorocarbanilide, essential oils and preservatives such as dimethylhydantoin (Glydant XL 1000), parabens, sorbic acid, etc.
  • the compositions may also comprise coconut acyl mono or diethanol amides as Suds boosters, and strongly ionizing salts such as sodium chloride and Sodium sulfate may also be used to advantage.
  • Antioxidants such as, for example, butylated hydroxyl toluene (BHT) may be used advantageously in amounts of about
  • Cationic conditioner which may be used including Qua trisoft LM-200 Polyduaternium-24, Merquat Plus 3330-35 Polyduaternium 39; and Jaguar R type conditioners.
  • Composition may also include clays such as Bentonite R claims as well as particulates such as abrasives, glitter, and shimmer.
  • the invention relates to a packaged personal care or personal wash product which comprises a container or bottle which container or bottle comprises a label (e.g., indicating product logo or insignia) and/or advertising (e.g., print copy or other form of advertising) and which is intended for sale or distribution.
  • the product comprises the hydratable composition according to the first aspect of the present invention.
  • the package or container has instructions which directs the consumer how and when to dilute the concentrated soap for use at home or elsewhere.
  • This packaged product can be used, for example, to save on cost of transporting a much heavier product to the point of sale (e.g., market) by the producer of the product and further to save cost (weight/energy, etc.) of the consumer to transport to their point of use. Further, it provides an ecologically friendly product which can be used as a source of advertising and good will.
  • active agents other than emollients defined above may be added to the cleansing composition in a safe and effective amount during formulation to treat the skin during the use of the product provided that they do not exceed solubility limits.
  • Suitable active ingredients include those that are soluble in the aqueous phase.
  • Suitable active agents may be advantageously selected from vitamins, anti-acne actives; anti-wrinkle, anti-skin atrophy and skin repair actives; skin barrier repair actives; non-steroidal cosmetic soothing actives; skin lightening actives; sunscreen actives; sebum stimulators; sebum inhibitors; anti-oxidants; protease inhibitors; skin tightening agents; desquamating enzyme enhancers; anti-glycation agents; topical anesthetics and the like.
  • the present invention provides use of hydratable concentrate composition according to the first aspect to obtain an end-use personal cleansing composition according to the second aspect, preferably the end-use personal cleansing composition is obtained by reconstituting the hydratable composition with a suitable liquid carrier such as water.
  • the present invention also provides use of the end-use personal cleansing composition made with the hydratable compositions of the present invention as a cleansing composition. More preferably the cleansing composition is a personal wash cleansing composition.
  • the hydratable composition of the present invention is prepared using the process comprising steps of: a. Dispersing class II polymer in a fatty acid phase during neutralisation with alkali under homogenisation; and b. followeded by addition of non-soap surfactant, chelating agent and the preservative and the thickener and blending to form the hydratable composition.
  • a benefit agent is added to this mixture. It is preferred that the benefit agent is selected from the group of but not limited to a skin emollient, a skin care, a pharmaceutical benefit agent, an antibacterial agent, combinations and mixtures thereof.
  • the present invention also provides a method of making an end-use composition from the hydratable composition according to the first aspect, the method comprising steps of taking the hydratable concentrate composition and a container and diluting the hydratable concentrate composition with a liquid carrier with a dilution factor in the range of 1 :1 to 1 :30 to obtain the end-use composition. It is more preferred that the dilution factor is in the range of 1 :1 to 1 :15 and most preferably 1 :2 to 1 :10.
  • the liquid carrier is water and more preferably clean potable water.
  • the hydratable composition when the hydratable composition is packaged in the form of a sachet, such sachet is opened and poured into a container for reconstituting the hydratable composition to form a stable end-use cleansing formulation.
  • the container is a bottle and most preferred a bottle with a dispenser such as pump bottle.
  • the bottle may first be filled with the liquid carrier such as water and then the dry composition added or vice versa. It is preferred that after the addition of the dry composition and the liquid carrier in a suitable container, the container is closed and shaken for about 15- 60 seconds. It is preferred that the newly reconstituted liquid formulation is allowed to rest for at least 30 minutes and preferably for at least 1 to 2 hrs.
  • the present invention also provides a kit for preparing an end-use cleansing formulation, the kit comprising: at least one pouch of a hydratable concentrate composition according to the first aspect; a container intended for reconstituting the hydratable concentrate composition; and an instruction manual.
  • compositions for the Examples were made by first heating the blend of fatty acids & Polymer II - acrylate cross polymer in a mixer at 75 to 80°C, followed by addition of part of SLES and caustic. The mixing speed used was sufficient enough to react fatty acids with caustic to form a soap. The remaining SLES was added to above mixture which was then cooled followed by CAPB addition to fatty acid soap blend. Preservative, and sensory modifiers were added to above mixture. Polymer I- guar gum that was separately mixed with fragrance was slowly added to main mixer & mixed well till homogenous mass is formed under vacuum to deaerate the same.
  • Measurement of viscosity of samples was carried out using a rotational viscometer- Brookfield RVT viscometer. To measure the viscosity, a measuring body (spindle number 3 to 5) was immersed in the end-use composition at at temperature of 25°C, 20 rpm and for 30 seconds. The force required in order to keep this speed constant, is a measurement for the dynamic viscosity.
  • Table 1- Effect of thickeners on viscosity Table 1 demonstrates the effect of presence of thickeners in the composition.
  • the composition C is the control composition without thickeners and therefore the viscosity of the thickeners is very low.
  • Example E1 does not have class I thickener and has viscosity in the range of 2000-2500 cps (2 to 2.5 Pa s), whereas in Example E2, viscosity without class-l I thickener is again negligible, but the composition E3 having both class I and class II thickeners have a better viscosity as compared to even E2.
  • Table 2 demonstrates the effect of presence of electrolyte in the composition. It is clear that optimum range of electrolyte according to the first aspect is required for the hydratable composition to achieve the desired viscosity of the end-use personal cleansing composition.

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Abstract

La présente invention concerne des compositions concentrées hydratables et des procédés permettant de constituer des formulations stables de produits d'hygiène personnelle destinés à un emploi final. Les compositions nettoyantes concentrées hydratables de la présente invention comprennent de 0,1 à 50 % en poids de savon ; de 0,1 à 40 % en poids de tensioactif non savonneux ; de 0,1 à 8,5 % en poids d'électrolyte ; de 20 à 60 % en poids d'eau ; et de 1,0 à 7,5 % en poids d'un épaississant choisi dans le groupe des polymères de classe I et de classe II, des mélanges et des combinaisons de ceux-ci ; la classe I comprend les polymères à base de cellulose et les polymères à base de gomme, les mélanges et les combinaisons de ceux-ci et la classe II comprend les polymères à base d'acide acrylique.
PCT/EP2024/060759 2023-05-05 2024-04-19 Compositions nettoyantes concentrées hydratables Pending WO2024231079A1 (fr)

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US3962418A (en) 1972-12-11 1976-06-08 The Procter & Gamble Company Mild thickened shampoo compositions with conditioning properties
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US3962418A (en) 1972-12-11 1976-06-08 The Procter & Gamble Company Mild thickened shampoo compositions with conditioning properties
US5393466A (en) 1991-11-25 1995-02-28 Lever Brothers Company, Division Of Conopco, Inc. Fatty acid esters of polyalkoxylated isethionic acid
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