WO2011072009A1 - Substrat solide poreux pouvant être dissous et revêtement résidant en surface comprenant des microsphères de matrice - Google Patents

Substrat solide poreux pouvant être dissous et revêtement résidant en surface comprenant des microsphères de matrice Download PDF

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Publication number
WO2011072009A1
WO2011072009A1 PCT/US2010/059455 US2010059455W WO2011072009A1 WO 2011072009 A1 WO2011072009 A1 WO 2011072009A1 US 2010059455 W US2010059455 W US 2010059455W WO 2011072009 A1 WO2011072009 A1 WO 2011072009A1
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Prior art keywords
personal care
dissolvable solid
solid substrate
porous dissolvable
care article
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PCT/US2010/059455
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English (en)
Inventor
Robert Wayne Glenn, Jr.
Kathleen Mary Kaufman
Joanne Roberta Willman
Original Assignee
The Procter & Gamble Company
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Filing date
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Application filed by The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to MX2012006550A priority Critical patent/MX339322B/es
Priority to CN2010800556722A priority patent/CN102647972B/zh
Priority to EP10796222.7A priority patent/EP2509564B1/fr
Priority to BR112012013838A priority patent/BR112012013838A2/pt
Priority to JP2012542246A priority patent/JP5639659B2/ja
Publication of WO2011072009A1 publication Critical patent/WO2011072009A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0216—Solid or semisolid forms
    • 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
    • A61K8/41—Amines
    • A61K8/416—Quaternary ammonium compounds
    • 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
    • A61K8/463—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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8129—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers or esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers, e.g. polyvinylmethylether
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions
    • C11D11/0082—Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0034—Fixed on a solid conventional detergent ingredient
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/221—Mono, di- or trisaccharides or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes
    • C11D3/502—Protected perfumes
    • C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay

Definitions

  • cationic surfactant conditioners interacted negatively with the anionic surfactants included in the shampoo/cleaning products for foaming. These new conditioning actives did not necessarily reproduce the conditioning benefit that was achieved by the traditional conditioning actives (i.e. cationic surfactant conditioners).
  • fragrance due to the water present in the personal care products, inclusion of fragrance is limited to either the solubilization or emulsification within aqueous amphiphile assemblies (micelles, liquid crystals etc.). As a result, a significant portion of the fragrance molecules are "trapped" within these aqueous assemblies which can limit the efficient delivery of the fragrance to the nostrils of the consumer during product usage (i.e. lower fragrance bloom) and to the target keratinous substrate (i.e. skin and hair). Moreover, choice of fragrance is limited to those that deliver a single scent experience to the consumer (i.e. the scent of the product as packaged is the same and the only fragrance experienced during use), and precludes delivery of a fragrance that is activated by water during use.
  • the porous dissolvable solid substrate of present invention is a flat, flexible substrate in the form of a pad, a strip or tape and having a thickness of from about 0.5 mm to about 10 mm, in one embodiment from about 1 mm to about 9 mm, in another embodiment from about 2 mm to about 8 mm, and in a further embodiment from about 3 mm to about 7 mm as measured by the below methodology.
  • the porous dissolvable solid substrate of the present invention can also take the form of a dissolvable fibrous web structure.
  • Non-ionic surfactants are included as a process aid in making a stable porous dissolvable solid substrate.
  • Suitable nonionic surfactants for use in the present invention include those described in McCutcheon's Detergents and Emulsifiers, North American edition (1986), Allured Publishing Corp., and McCutcheon's Functional Materials, North American edition (1992).
  • the one or more water-soluble polymers may be present from about 10% to about 50% by weight of the porous dissolvable solid substrate, in one embodiment from about 15% to about 40% by weight of the porous dissolvable solid substrate, and in yet another embodiment from about 20% to about 30% by weight of the porous dissolvable solid substrate.
  • At least one of the one or more water-soluble polymers is chosen such that about 2% by weight solution of the water-soluble polymer gives a viscosity at 20°C of from about 4 centipoise to about 80 centipoise; in an alternate embodiment from about 5 centipoise to about 70 centipoise; and in another embodiment from about 6 centipoise to about 60 centipoise.
  • the combined weight percentage of the water-soluble polymer(s) and starch-based material generally ranges from about 10% to about 50%, in one embodiment from about 15% to about 40%, and in a particular embodiment from about 20% to about 30% by weight relative to the total weight of the porous dissolvable solid substrate.
  • the weight ratio of the water-soluble polymer(s) to the starch-based material can generally range from about 1:10 to about 10:1, in one embodiment from about 1:8 to about 8:1, in still another embodiment from about 1:7 to about 7:1, and in yet another embodiment from about 6:1 to about 1:6.
  • polyols examples include, but are not limited to, glycerin, diglycerin, propylene glycol, ethylene glycol, butylene glycol, pentylene glycol, cyclohexane dimethanol, hexane diol, polyethylene glycol (200-600), sugar alcohols such as sorbitol, manitol, lactitol and other mono- and polyhydric low molecular weight alcohols (e.g., C2-C8 alcohols); mono di- and oligo- saccharides such as fructose, glucose, sucrose, maltose, lactose, and high fructose corn syrup solids and ascorbic acid.
  • sugar alcohols such as sorbitol, manitol, lactitol and other mono- and polyhydric low molecular weight alcohols (e.g., C2-C8 alcohols); mono di- and oligo- saccharides such as fructose, glucose, sucrose, maltose, lac
  • the matrix microsphere comprises (by weight of the matrix microsphere composition): i) a starch-derived material at a level of in one embodiment from about 25% to about 70%, in another embodiment from about 30% to about 60%, and in yet another embodiment from about 35% to about 50%; ii) a cationic surfactant conditioner at a level in one embodiment of from about 5% to about 60%, in another embodiment from about 15% to about 50%, and in yet another embodiment from about 20% to about 40%; and iii) a perfume at a level in one embodiment of from about 5% to about 60%, in another embodiment from about 15% to about 50%, and in yet another embodiment from about 20% to about 40%.
  • octenyl succinate (OSAN) substituted waxy corn starches of various types such as 1) waxy starch, acid thinned and OSAN substituted, (2) blend of corn syrup solids: waxy starch, OSAN substituted and dextrinized, 3) waxy starch: OSAN substituted and dextrinised, 4) blend of corn syrup solids or maltodextrins with waxy starch: acid thinned OSAN substituted then cooked and spray dried, 5) waxy starch: acid thinned OSAN substituted then cooked and spray dried; and 6) the high and low viscosities of the above modifications (based on the level of acid treatment) can also be used in the present invention. Mixtures of these, particularly mixtures of the high and low viscosity modified starches are also suitable.
  • the modified starches comprise a starch derivative containing a hydrophobic group or both a hydrophobic and a hydrophilic group which has been degraded by at least one enzyme capable of cleaving the 1,4 linkages of the starch molecule from the non-reducing ends to produce short chained saccharides to provide high oxidation resistance while maintaining substantially high molecular weight portions of the starch base.
  • a starch derivative containing a hydrophobic group or both a hydrophobic and a hydrophilic group which has been degraded by at least one enzyme capable of cleaving the 1,4 linkages of the starch molecule from the non-reducing ends to produce short chained saccharides to provide high oxidation resistance while maintaining substantially high molecular weight portions of the starch base.
  • starch- derived materials include, but are not limited to MALTRIN® Ml 00 Maltodextrin, manufactured by Grain Processing Corporation (Muscatine, IA); CAPSULTM, CAPSUL TATM, HI-CAP 100TM, CAPSUL ETM, NARLEXTM (ST and ST2), AND N-LOKTM, manufactured by Akzo Nobel (Bridgewater, NJ); the EmCapTM series including 12633, 12634, 12635, 12639, 12635, and 12671, manufactured by Cargill Inc. (Cedar Rapids, Iowa); and STA-DEX® 90 and MIRA-CAP® Starch, manufactured by Tate & Lyle (Decatur, IL).
  • modified starches suitable for the present invention are disclosed for example in WO 99/55819, WO 01/40430, EP-A-858828, EP-A- 1160311 and U.S. Pat. No. 5,955,419.
  • the aliphatic groups can contain, in addition to carbon and hydrogen atoms, ether linkages, and other groups such as amino groups.
  • the longer chain aliphatic groups e.g., those of about 12 carbons, or higher, can be saturated or unsaturated and can be branched or unbranched.
  • the class of cationic conditioner actives of general formula (I) R 1 and R 2 are each independently selected from C 16 to C 22 hydrocarbyl chains comprising at least one ester linkage in both R 1 and R2 , and R 3 and R 4 are each
  • the class of cationic conditioner actives of general formula (I), R 1 and R 2 are each independently selected from C 16 to C 22 saturated or unsaturated, and R 3 and R 4 are each independently selected from CH 3> CH 2 CH 2 OH, and CH 3 .
  • the class of cationic conditioner actives of general formula (I), R 1 is a C 16 to C 22 alkyl chain and R 2 ,
  • Suitable cationic surfactant conditioner actives can include salts of primary, secondary, and tertiary fatty amines.
  • the alkyl groups of such amines have from about 12 to about 22 carbon atoms, and can be substituted or unsubstituted. These amines are typically used in combination with an acid to provide the cationic species.
  • Suitable materials of general formula (II) are stearamidopropyldimethylamine, stearamidopropyldiethylamine, stearamidoethyldiethylamine,
  • alkyl amine salts can include dimethylstearamine, dimethylsoyamine, soyamine, myristylamine, tridecylamine, ethylstearylamine, N- tallowpropane diamine, ethoxylated (with 5 moles of ethylene oxide) stearylamine, dihydroxyethylstearylamine, and arachidyl behenylamine.
  • the alkyl amine salt is stearamidopropyldimethylamine. Mixtures of any of the foregoing materials may also be suitable.
  • the acid used to provide the cationic conditioner active can be any organic acid or mineral acid of sufficient acid strength to neutralize a free amine nitrogen.
  • Such acids include hydrochloric acid, sulphuric acid, nitric acid, phosphoric acid, lactic acid, citric acid, tartaric acid, acetic acid, gluconic acid, glycolic acid and propionic acid, or combinations thereof.
  • a sufficient amount of acid is added to neutralize the amidoamine compound and to adjust the final pH of the composition to within a range of from about 2.5 to about 6; in another embodiment, from about 3 to about 5.
  • the molar ratio of protonatable amine groups to H + from the acid is from about 1:0.3 to about 1:1.2; and in another embodiment, from about 1:0.5 to about 1:1.1. Mixtures of any of the above-described cationic conditioner actives may also be suitable.
  • the secondary fragrance of the present invention should be substantially different and distinct from the composition of the primary fragrance in order to overcome the effect of fragrance habituation and to make the second fragrance noticeable over the primary fragrance.
  • the secondary fragrance should be substantially the same and indistinct from the composition of the primary fragrance in order to provide a single, continuous, long-lasting fragrance experience.
  • the surface resident coatings comprising the cationic surfactant conditioner and perfume containing matrix microspheres of the present invention may also impart other desirable attributes to the personal care article including, but not limited to, improved visual appearance.
  • the surface resident coatings comprising the cationic surfactant conditioner and high impact perfume containing matrix microspheres of the present invention may provide additional benefits such as imparting anti-stick properties to minimize sticking of the article to the product packaging or to other articles in the case to where they are delivered as a stack of articles.
  • G Specific Surface Area
  • the Specific Surface Area of the personal care article and/or the porous dissolvable solid substrate is measured via a gas adsorption technique.
  • Surface Area is a measure of the exposed surface of a solid sample on the molecular scale.
  • the BET (Brunauer, Emmet, and Teller) theory is the most popular model used to determine the surface area and is based upon gas adsorption isotherms.
  • Gas Adsorption uses physical adsorption and capillary condensation to measure a gas adsorption isotherm. The technique is summarized by the following steps; a sample is placed in a sample tube and is heated under vacuum or flowing gas to remove contamination on the surface of the sample. The sample weight is obtained by subtracting the empty sample tube weight from the degassed sample + sample tube weight.
  • the presence of a surface resident coating comprising a starch-perfume complex of the present invention can be determined by a number of techniques.
  • the surface of application as well as the cross-sections perpendicular to the larger surfaces of the porous dissolvable solid substrate can be examined by microscopic techniques.
  • These microscopic techniques may include light microscopy and scanning electron microscopy (SEM).
  • SEM scanning electron microscopy
  • the light microscopy may include but are not necessarily limited to bright field, dark field, or confocal microscopy techniques.
  • Other techniques for mapping unique elements such as silicon or distinctive functional groups such as quaternary ammonium groups on the cross-sectional surface include: time of flight secondary ion mass spectroscopy (ToF-SIMS), or infrared microscopy.
  • the surface resident coating particles of the present invention generally do not spread uniformly across all exposed solid/air interfaces. Rather, it has been found that the surface resident coatings of the present invention typically spread, from the point of coating application, into cavities down to about 0.5 to about 3.0 mm according to gravity. Accordingly, the determination of surface resident particles of cosmetic actives of the present invention (as described above), should be conducted across many different cross sections from top-to-bottom and from edge-to- edge of the porous solid. If present, the surface resident cosmetic active particle will generally be within the regional vicinity (to within about 0.5 to about 3.0 mm from the surface) of the surface to where the coating was first applied.
  • An expert perfume sensory panel is conducted to quantify the fragrance performance within a normal shampoo protocol regimen with three expert perfumers evaluating the odor character and odor intensity on a 1 to 100 scale (no odor to the most intense odor possible) as described below.
  • a retail liquid shampoo product is included within each panel as a control leg (Herbal Essences Drama Clean Shampoo, Distributed by Procter & Gamble).
  • a target weight of 300 grams of the above composition is prepared with the use of a conventional overhead stirrer (IKA® RW20DZM Stirrer available from IKA® Works, Inc., Wilmington, DE) and a hot plate (Corning Incorporated Life Sciences, Lowell, MA).
  • a conventional overhead stirrer IKA® RW20DZM Stirrer available from IKA® Works, Inc., Wilmington, DE
  • a hot plate Cornning Incorporated Life Sciences, Lowell, MA.
  • the distilled water and glycerin are added with stirring at 100-150 rpm.
  • the cationic polymer when present, is then slowly added with constant stirring until homogenous.
  • the polyvinyl alcohol is weighed into a suitable container and slowly added to the main mixture in small increments using a spatula while continuing to stir while avoiding the formation of visible lumps. The mixing speed is adjusted to minimize foam formation.
  • a porous dissolvable solid substrate (also referred to in the examples herein as “substrate”) was prepared from the above liquid processing mixture as described in Table 2 below.
  • Table 3 summarizes the structural measurements and qualitative physical integrity ratings taken on the porous dissolvable solid substrates of Example 1. SEM and micro-CT images were also taken for the lower density Articles and are referenced in the attached figures. The data was collected by the methods as described herein.
  • Example 1 The above data and referenced images demonstrate the porous dissolvable solid substrate of Example 1 to be predominantly open-celled and to have good physical integrity.
  • the predominantly open-celled porous dissolvable solid substrate also exhibits fast dissolution performance (6 to 8 strokes) within the simulated hand dissolution protocol as described herein.
  • liquid processing composition is prepared at the indicated weight percentages as described below (all percentages are weight percentages) in Table 4.
  • the resulting emulsion is spray dried with a Mini Spray Dryer (Model B-290 available from BUCHI Labortechnik AG, CH-9230 Flawil 1 / Switzerland) with the aspirator set to 100%, the compressed air set at 4 cm, the pump set at 30% and with the inlet temperature operated from 165 to 180 degrees Celsius and the outlet temperature operated from 70 to 80 degrees Celsius.
  • Approximately 30.2 grams of a fine powder was recovered from the product vessel representing a yield of approximately 50.4%.
  • the resulting microspheres have a calculated theoretical solid composition (assuming 0% moisture for calculation purposes only) of approximately 53.33% maltodextrin, 23.33% gum arabic, and 23.33% perfume accord 2a.
  • the resulting emulsion is continuously stirred with a stirring bar and heated to between 40 and 50 degrees Celsius on a stirrer/hot plate while being spray dried with a Mini Spray Dryer (Model B-290 available from BLTCHI Labortechnik AG, CH-9230 Flawil 1 / Switzerland) with the aspirator set to 100%, the compressed air set at 4.2 cm, the pump set from 20 to 25% and with the inlet temperature operated from 170 to 180 degrees Celsius and the outlet temperature operated from 70 to 80 degrees Celsius. Approximately 36.4 grams of a fine powder is recovered from the product vessel representing a yield of approximately 60.6%.
  • the resulting microspheres have a calculated theoretical solid composition (assuming 0% moisture for calculation purposes only) of approximately 40% maltodextrin, 30% behentrimonium chloride, and 30% perfume accord 2a.
  • Example 6 Preparation of matrix microspheres comprising maltodextrin, and perfume accord 2c and additional cationic surfactant conditioner (to compensate for removal of the gum arabic relative to Example 3)
  • a small glass bottle with a pump spray is filled with the primary perfume fragrance oil la and then sprayed onto the surface of the solid from a distance of 2 to 3 inches.
  • the solid is then removed from the easel and returned to the weigh boat on the balance with the top side facing upwards.
  • the weight of perfume applied is recorded and in the instance that the target weight is not achieved, either another spray amount is applied or a Kim wipe to absorb excess perfume away from the substrate. This iterative process is repeated until the target weight range is achieved.
  • the target amount of primary perfume fragrance la applied is 0.06 grams.
  • the resulting substrate resting on the small weigh boat is stored within a zip-lock bag and sealed from the atmosphere.
  • the above process is repeated on subsequent substrates from Example 1 that have been previously coated with aminosilicone. A measured average of approximately 0.062 +/- 0.001 grams of perfume fragrance la is coated across multiple coated substrates.
  • Example 9 Porous dissolvable solid substrates shampoos with a surface coating of aminosilicone, a surface coating of primary fragrance la, and a surface coated powder blend comprising 35% of a calcium silicate complex of a secondary perfume accord 2c and 65% of microspheres comprising a cationic surfactant conditioner and a secondary perfume accord 2c
  • Porous dissolvable solid substrate shampoos with surface resident coatings are prepared according to the identical formulation and procedures as described in Example 8, but with the replacement of the surface coated powder blend comprising 15% of a calcium silicate complex of a secondary perfume accord 2c and 85% of microspheres comprising a cationic surfactant conditioner and a secondary perfume accord 2c with a surface coating of a powder blend comprising 50% of a calcium silicate complex of a secondary perfume accord 2c and 50% of microspheres comprising a cationic surfactant conditioner and a secondary perfume accord 2c. Measured averages of approximately 0.064 +/- 0.001 grams of primary fragrance la and 0.119 +/- 0.008 grams of the powder blend are coated onto the substrates.
  • Example 11 Porous dissolvable solid substrate shampoos with a surface coating of aminosilicone, a surface coating of primary fragrance la, and surface coated microspheres comprising a cationic surfactant conditioner and a secondary perfume accord 2b
  • Example 11 Porous dissolvable solid Cosmetic 80 80 65 55 20 5 20 substrate shampoo with a surface floral Greene
  • Example 12 Porous dissolvable solid Green 80/85 80 65 60 20 15 15/20 substrate shampoo with a surface cosmetic Green Green,

Abstract

La présente invention porte sur des compositions de soins personnels, et, en particulier, sur des compositions de soins personnels sous la forme d'un article de soins personnels qui est un substrat solide poreux pouvant être dissous. Le substrat solide poreux pouvant être dissous comporte un revêtement résidant en surface comprenant un revêtement résidant en surface comprenant d'environ 25 % à environ 70 % d'un matériau dérivé de l'amidon, d'environ 5 % à environ 60 % d'un agent de conditionnement tensioactif cationique, et d'environ 5 % à environ 60 % d'un parfum, qui peut produire un avantage pour le consommateur.
PCT/US2010/059455 2009-12-08 2010-12-08 Substrat solide poreux pouvant être dissous et revêtement résidant en surface comprenant des microsphères de matrice WO2011072009A1 (fr)

Priority Applications (5)

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MX2012006550A MX339322B (es) 2009-12-08 2010-12-08 Un sustrato solido, soluble y poroso y recubrimiento fijo de superficie que comprende microesferas de matriz.
CN2010800556722A CN102647972B (zh) 2009-12-08 2010-12-08 可溶性多孔固体基质和包含基质微球体的表面驻留涂层
EP10796222.7A EP2509564B1 (fr) 2009-12-08 2010-12-08 Substrat solide poreux pouvant être dissous et revêtement résidant en surface comprenant des microsphères de matrice
BR112012013838A BR112012013838A2 (pt) 2009-12-08 2010-12-08 substrato sólido poroso dissolúvel e revestimento residente na superfície que compreende microesferas de matriz
JP2012542246A JP5639659B2 (ja) 2009-12-08 2010-12-08 多孔質溶解性固体基材と、マトリックスミクロスフェアを含む表面残留コーティング

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