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    公开号:BR112013002445B1
    申请号:R112013002445-3
    申请日:2011-07-14
    公开日:2018-01-30
    发明作者:Parameswaran Ananthapadmanabhan Kavssery；Joseph Post Albert；Shafer Georgia；Nikolova Zdravkova Aneliya；Alexandra Hall Caroline；Andrew Turner Graham
    申请人:Unilever N.V.；
    IPC主号:
    专利说明:

    (54) Title: ANTICASPA SHAMPOO (51) lnt.CI .: A61K 8/36; A61K 8/46; A61K 8/49; A61K 8/27; A61Q 5/00; A61Q 5/02 (52) CPC: A61K 8/361, A61K 8/466, A61K 8/4933, A61K 8/27, A61Q 5/006, A61Q 5/02, A61K 2800/5922 (30) Unionist Priority: 18 / 08/2010 EP 10173221.2 (73) Holder (s): UNILEVER NV
    (72) Inventor (s): KAVSSERY PARAMESWARAN ANANTHAPADMANABHAN; ALBERT JOSEPH POST; GEORGIA SHAFER; ANELIYA NIKOLOVA ZDRAVKOVA; CAROLINE ALEXANDRA HALL; GRAHAM ANDREW TURNER
    1/21 “ANTICASPA SHAMPOO”
    Field of the Invention [001] The present invention relates to an anti-dandruff shampoo composition that provides improvement in the barrier condition of the epidermis surface layer.
    Background to the Invention [002] Dandruff is a problem that affects many people worldwide. The condition is manifested by the shelter of dead cell clusters of the scalp. These are white in color and give an aesthetically unpleasant appearance. Factors that contribute to dandruff are certain members of the Malassezia yeast. To combat them, anti-dandruff products included certain zinc salts that have anti-fungal activity, for example, zinc pyrithione (ZnPTO). Such a product should act as a hair cleaning shampoo, while mitigating the causes of dandruff. An example of a known dandruff shampoo comprises sodium lauryl ether sulfate (an ethoxylated anionic surfactant) in combination with zinc pyrithione.
    [003] An alternative method to mitigate the cause of dandruff should improve the barrier condition of the superficial layer of the epidermis, so that the scalp becomes more resistant to the causes of dandruff.
    [004] Patent document WO 2004/035015 A1 describes a shampoo comprising a sodium lauryl sulfate and conjugated linoleic acid.
    [005] It is an object of the present invention to provide an anti-dandruff shampoo composition that provides improvement in the barrier conditions of the superficial layer of the epidermis.
    [006] It is now revealed that the surfactant system comprising: i) a fatty acyl isethionate product, which product comprises 40 to 80% by weight of fatty acyl isethionate and 15 to 50% by weight of free fatty acid and / or fatty acid salt; ii) an alkyl glycinate and / or carboxyglycinate of
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    2/21 alkyl; and, iii) an alkyl sulfate and / or an ethoxylated alkyl sulfate anionic surfactant, provides an improvement in the barrier condition of the epidermal surface layer.
    Brief Description of the Invention [007] The present invention thus provides in a first aspect an anti-dandruff shampoo comprising:
    a) from 0.1 to 5% by weight of an anti-dandruff zinc salt;
    b) from 1 to 8% by weight of an alkyl glycinate and / or alkyl carboxyglycinate;
    c) from 2 to 16% by weight of an alkyl sulfate and / or an ethoxylated alkyl sulfate anionic surfactant; and,
    d) from 1 to 10% by weight of a fatty acyl isethionate product, whose product comprises 40 to 80% by weight of fatty acyl isethionate and 15 to 50% by weight of free fatty acid and / or fatty acid salt .
    [008] A second aspect of the invention concerns the use of a surfactant system comprising: i) a fatty acyl isethionate product, the product comprising 40 to 80% by weight of fatty acyl isethionate and 15 to 50% by weight of free fatty acid and / or fatty acid salt; ii) an alkyl glycinate and / or alkyl carboxyglycinate; and, iii) an alkyl sulfate and / or an ethoxylated alkyl sulfate anionic surfactant, to provide an improvement in the barrier condition of the epidermal surface layer.
    Preferred Embodiments [009] Anti-dandruff shampoo comprises an anti-dandruff zinc salt. Anti-dandruff zinc salts are preferably selected from zinc pyrithione, zinc sulfate and hydrates thereof (for example zinc sulfate hexahydrate), and combinations thereof. Zinc pyrithione (ZnPTO) designating zinc 1-hydroxy-2-pyridinethione is most preferred.
    [010] The anti-dandruff zinc salt is present at a level of 0.1 to
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    3/21
    5% by weight, preferably from 0.2 to 3% by weight, more preferably from 0.25 to 2.5% by weight based on the shampoo composition.
    [011] The anti-dandruff shampoo comprises from 1 to 8% by weight, preferably from 2 to 6% by weight, of an alkyl glycinate and / or alkyl carboxyglycinate.
    [012] The alkyl glycinate and / or alkyl carboxyglycinate preferably has an alkyl group of carbon atoms Ce-22, in the form of a salt with a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium. Preferred glycinates are sodium coco glycinate and sodium cocoyl glycinate.
    [013] The anti-dandruff shampoo comprises an alkyl sulfate and / or ethoxylated alkyl sulfate anionic surfactant at a level of 2 to 16% by weight, preferably from 3 to 12% by weight, more preferably from 4 to 10% in weight.
    Preferred alkyl sulfates are Ce-ie alkyl sulfates, more preferably C12-18 alkyl sulfates, preferably in the form of a salt with a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium. Examples are sodium lauryl sulfate (SLS) or sodium dodecyl sulfate (SDS).
    [015] Preferred alkyl ether sulfates are those that have the formula: RO (CH2CH2O) nSO3M; wherein R is an alkyl or alkenyl having 8 to 18 (preferably 12 to 18) carbon atoms; n is a number having an average value greater than at least 0.5, preferably between 1 and 3, more preferably between 2 and 3; and M is a solubilization cation such as sodium, potassium, ammonium or substituted ammonium. An example is sodium lauryl ether sulfate (SLES).
    [016] preferred ethoxylated alkyl sulfate anionic surfactant is sodium lauryl ether sulfate (SLES) having a medium degree of ethoxylation
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    4/21
    0.5 to 3, preferably 1 to 3.
    [017] The fatty acyl isethionate product is present at a level of 1 to 10% by weight, preferably 2 to 8% by weight, more preferably from 2.5 to 7.5% by weight.
    [018] The preferred fatty acyl isethionate product comprises a fatty acyl isethionate surfactant at a level of 40 to 80% by weight of the product, as well as free fatty acid and / or a fatty acid salt at a level of 15 to 50 %.
    [019] Preferably, greater than 20% by weight and less than 45% by weight, more preferably greater than 25% by weight and less than 45% by weight of fatty acyl isethionate have a chain length greater than or equal to Ci6 ; and greater than 50% by weight, preferably greater than 60% by weight of the free fatty acid / soap with chain length C1 to C20.
    [020] In a preferred embodiment, the anti-dandruff shampoo comprises from 0.1 to 10% by weight, preferably from 0.5 to 8% by weight, more preferably from 1 to 5% by weight of a betaine surfactant, from preferably an alkyl amidopropyl betaine, for example cocoamidopropyl betaine.
    [021] In another preferred embodiment, the anti-dandruff shampoo comprises from 0.1 to 5% by weight of a cationic polymer, preferably a cationic polysaccharide polymer.
    [022] A particularly preferred embodiment of the invention is an anti-dandruff shampoo comprising: a) from 0.25 to 2.5% by weight of zinc pyrithione;
    b) from 2 to 6% by weight of sodium alkyl carboxyglycinate having a C8-22 carbon atom alkyl group;
    c) from 4 to 10% by weight of sodium lauryl ether sulfate, which has an average degree of ethoxylation from 0.5 to 3;
    d) from 1 to 10% by weight of a fatty acyl isethionate product,
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    5/21 whose product comprises 40 to 80% by weight of fatty acyl isethionate and 15 to 50% by weight of free fatty acid and / or fatty acid salt; and,
    e) 0.1 to 5% by weight of cocoamidopropyl betaine.
    Detailed Description of the Invention [023] The fatty acyl isethionate product is present at a level of 1 to 10% by weight, preferably 2 to 8% by weight, more preferably from 2.5 to 7.5% by weight.
    [024] The preferred fatty acyl isethionate product comprises a fatty acyl isethionate surfactant at a level of 40 to 80% by weight of the product, as well as free fatty acid and / or a fatty acid salt at a level of 15 to 50 %.
    [025] Preferably greater than 20% by weight and less than 45% by weight, more preferably greater than 25% by weight and less than 45% by weight of fatty acyl isethionate of chain length greater than or equal to Ci6; and greater than 50% by weight, preferably greater than 60% by weight of the free fatty acid / soap is of chain length C1 to C20.
    [026] The fatty acyl isethionate surfactant component is typically prepared by the reaction of an isethionate salt such as alkali metal isethionates and an aliphatic fatty acid having 8 to 20 carbon atoms and iodine value (degree of measurement of less than 20 g, for example:
    RCOOH + HOR ^ C ^ M -► RCOOF ^ SOaM where R1 is an aliphatic hydrocarbon radical containing from 2 to 4 carbons;
    M is an alkali metal cation or metal ion (for example, sodium, magnesium, potassium, lithium), ammonium or substituted ammonium cation or other counterion; and,
    R is an aliphatic hydrocarbon radical containing from 7 to 24, from
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    6/21 preferably 8 to 22 carbons.
    [027] Depending on the processing conditions used, the resulting fatty acyl isethionate product may be a mixture of 40 to 80% by weight of fatty acyl isethionates (formed from the reaction) and 50 to approximately 15% by weight, typically 40 to 20% by weight of free fatty acids. In addition, the product may contain isethionate salts that are typically present at levels below 5% by weight, and traces (less than 2% by weight) of other impurities. Preferably, a mixture of aliphatic fatty acids is used for the preparation of commercial acyl fatty isethionate surfactants. The resulting fatty acyl isethionate surfactants (for example, resulting from the reaction of alkali metal isethionate and aliphatic fatty acid) should preferably be more than 20% by weight, preferably more than 25% by weight, but not more than 45% % by weight, preferably 35% (based on the fatty acyl isetionate reaction product) or fatty acyl group with 16 or more carbon atoms to provide a better foam and softness of the resulting fatty acyl isethionate product. Such longer chain fatty acyl isethionate surfactants and fatty acids, i.e. fatty acyl group and fatty acid with 16 or more carbons, can typically form insoluble surfactant / fatty acid crystals in water at ambient temperatures.
    [028] Examples of commercial fatty acyl isethionate products that are particularly useful in the invention in question are DEFI flakes and Dove® cleansing bar noodles produced by Unilever. DEFI (Direct Esterification of Fatty Isethionate / Direct Esterification of Fatty Isethionate) flakes typically contain approximately 68 to 80% by weight of sodium acyl fatty isethionate and 15 to 30% by weight of free fatty acid. More than 25% by weight and not more than 35% of the acyl grapp group of the resulting fatty acyl isethionate have 16 to 18 carbon atoms. Dove® cleansing bar
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    7/21 noodles are mixtures of DEFI flakes described above and long chain fatty acid (mainly C16 and Cie) and fatty soap containing approximately 40 to 55% by weight of fatty acyl isethionate and 30 to 40% by weight of fatty acid and fatty soap.
    Zinc Active [029] The anti-dandruff shampoo comprises an anti-dandruff zinc salt. Anti-dandruff zinc salts can be selected from zinc pyrithione, zinc sulfate and hydrates thereof (for example, zinc sulfate hexahydrate), and combinations. Zinc pyrithione (ZnPTO), which is an alternative name for zinc 1hydroxy-2-pyridinationa is preferred.
    [030] The anti-dandruff zinc salt is present at a level of 0.1 to 5% by weight, preferably from 0.2 to 3% by weight, more preferably from 0.25 to 2.5% by weight with based on the composition of dandruff shampoo.
    Other AD [031] Additional anti-dandruff assets can be included in the compositions. Illustrative substances are octopirox (pyroctone olamine), azole antimicrobials (eg climbazole), selenium sulfide and combinations of these. Amounts of these materials can vary from approximately 0.01 to approximately 5% by weight, preferably from 0.1 to 3% by weight, and ideally from approximately 0.3 to approximately 4% by weight of the composition.
    Glycinate [032] The anti-dandruff shampoo comprises from 1 to 8% by weight, preferably from 2 to 6% by weight, of an alkyl glycinate and / or alkyl carboxyglycinate.
    [033] Preferably the alkyl glycinate and / or alkyl carboxyglycinate has an alkyl group of Ce-22 carbon atoms, in the form of a salt with a solubilization cation, such as sodium, potassium, ammonium and ammonium
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    8/21 replaced. Preferred glycinates are sodium coco glycinate and sodium cocoyl glycinate.
    Anionic Cleansing Surfactant [034] The anti-dandruff shampoo comprises an alkyl sulfate and / or ethoxylated alkyl sulfate anionic surfactant at a level of 2 to 16% by weight, preferably 3 to 14% by weight, more preferably 4 to 10% by weight.
    Preferred alkyl sulfates are Ce-ie alkyl sulfates, more preferably C12-18 alkyl sulfates, preferably in the form of a salt with a solubilizing cation, such as sodium, potassium, ammonium or substituted ammonium. Examples are sodium lauryl sulfate (SLS) or sodium dodecyl sulfate (SDS).
    [036] Preferred alkyl ether sulfates are those which have the formula: RO (CH2CH2O) nSO3M, where n R is an alkyl or alkenyl having 8 to 18 (preferably 12 to 18) carbon atoms; n is a number that has an average value greater than at least 0.5, preferably between 1 and 3; and M is a solubilization cation such as sodium, potassium, ammonium or substituted ammonium. An example is sodium lauryl ether sulfate (SLES).
    [037] A preferred anionic ethoxylated alkyl sulfate surfactant is sodium lauryl ether sulfate (SLES) which has an average degree of ethoxylation degree of 0.5 to 3, preferably 1 to 3.
    [038] Shampoo compositions according to the invention may comprise one or more other anionic cleansing surfactants that are cosmetically acceptable and suitable for topical application to the hair.
    [039] Examples of other suitable anionic cleaning surfactants are alkaryl sulfonates, alkyl succinates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, N-alkyl sarcosinates, alkyl phosphates, alkyl ether phosphates and alkyl ether carboxylic acids and salts thereof, especially their
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    9/21 sodium, magnesium, ammonium and salts of mono-, di- and triethanolamine. The alkyl and acyl groups generally contain 8 to 18, preferably 10 to 16, carbon atoms and can be unsaturated. The alkyl ether sulfosuccinates, alkyl ether phosphates and alkyl ether carboxylic acids and salts thereof can contain from 1 to 20 units of ethylene oxide or propylene oxide per molecule.
    [040] Typical anionic cleansing surfactants for use in shampoo compositions of the invention include sodium oleyl succinate, ammonium lauryl sulfosuccinate, sodium lauryl sulfosuccinate, sodium dodecyl benzene sulfonate, dodecyl benzene triethanolamine sulfonate, lauryl ether carboxylic acid and lauryl ether sodium sarcosinate.
    [041] Additional preferred suitable anionic cleaning surfactants are sodium lauryl ether sulfosuccinate (n) EO, (where n is 1 to 3), laurel ether carboxylic acid (η) EO (where n is 10 to 20).
    [042] Mixtures of any of the anionic cleaning surfactants may also be suitable.
    [043] When added, the total amount of additional anionic cleansing surfactant in shampoo compositions of the invention in general can vary from 0.5 to 45% by weight, preferably from 1.5 to 35% by weight, more preferably from 5 to 20% by weight, calculated by the total weight of anionic cleaning surfactant based on the total weight of the composition.
    [044] The composition may include co-surfactants to help impart aesthetic, physical or cleaning properties to the composition.
    [045] An example of a co-surfactant is a non-ionic surfactant, which can be included in an amount ranging from 0.5 to 8%, preferably from 2 to 5% by weight based on the total weight of the composition.
    [046] For example, representative non-ionic surfactants that can be included in shampoo compositions of the invention include primary or aliphatic condensation products of phenols or aliphatic alcohols (Ce - Cie)
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    10/21 secondary, linear or branched with alkylene oxides, usually ethylene oxide and which generally range from 6 to 30 ethylene oxide groups.
    [047] Other representative non-ionic surfactants include mono- or di-alkyl alkanolamides. Examples include coconut mono- or diethanolamide and coconut monoisopropanolamide.
    [048] Other non-ionic surfactants that can be included in shampoo compositions of the invention are alkyl polyglycosides (APGs). Typically, the APG comprises an alkyl group connected (optionally via a bridge group) to a block of one or more glycosyl groups. Preferred APGs are defined by the following formula:
    RO - (G) n where R is a branched or straight chain alkyl group that can be saturated or unsaturated and G is a saccharide group.
    [049] R can represent an average alkyl chain length of approximately Cs to approximately C20. Preferably R represents an average alkyl chain length of approximately Ce to approximately C12. Most preferably, the R value is between approximately 9.5 and approximately 10.5. G can be selected from Cs or C6 monosaccharide residues, and is preferably a glucoside. G can be selected from the group comprising glucose, xylose, lactose, fructose, mannose and derivatives thereof. Preferably G is glucose.
    [050] The degree of polymerization, n, can have a value of approximately 1 to approximately 10 or more; preferably, the value of n is from approximately 1.1 to approximately 2; 0 most preferably the value of n is from approximately 1.3 to approximately
    1.5.
    [051] Alkyl polyglycosides suitable for use in the invention are commercially available and include, for example, those materials
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    11/21 identified as: Oramix NS10 ex Seppic; Plantaren 1200 and Plantaren 2000 ex Henkel.
    [052] Other non-ionic sugar-derived surfactants that can be included in compositions of the invention include C10-C18 N-alkyl (Οι-Οβ) polyhydroxy fatty acid amides such as C12-C18 N-methyl glucamides, as described by example in patent document WO 92/06154 and US 5,194, 639, and N-alkoxy polyhydroxy fatty acid amides, such as C10-C18 N- (3-methoxypropyl) glucamide.
    [053] A preferred example of an amphoteric or zwitterionic co-surfactant, which can be included in an amount ranging from 0.1 to approximately 10% by weight, preferably from 0.5 to 8%, more preferably from 1 to 5% by weight, based on the total weight of the composition.
    [054] Examples of amphoteric or zwitterionic surfactants include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines (sultaines), alkyl amphoacetates, alkyl amphopropionates, alkyl amphoglycinates, alkyl amidopropyl hydroxysultines, acyl taurates and acyl taurates. alkyl and acyl have 8 to 19 carbon atoms. Typical amphoteric and zwitterionic surfactants for use in shampoos of the invention include lauryl amine oxide, cocodimethyl sulfopropyl betaine, lauryl betaine, cocoamidopropyl betaine and sodium cocoanfoacetate.
    [055] A particularly preferred zwitterionic or amphoteric surfactant is cocoamidopropyl betaine.
    [056] Mixtures of any of the previous amphoteric or zwitterionic surfactants may also be suitable. Preferred mixtures are those of cocoamidopropyl betaine, with other zwitterionic or amphoteric surfactants as described above. Another amphoteric or zwitterionic surfactant is sodium cocoanfoacetate.
    [057] The total amount of surfactant (including any coPetition 870170080656, from 10/23/2017, page 24/37
    12/21 surfactant, and / or any emulsifier) in a shampoo composition of the invention is generally from 1 to 50%, preferably from 2 to 40%, more preferably from 10 to 25% by the total weight of the surfactant based on in the total weight of the composition.
    Silicone [058] In this case, the compositions can advantageously include one or more silicones. Silicones are conditioning agents in dispersed or suspended form. They are used to be deposited on the hair behind after washing the hair with water. Suitable silicone oils may include copolymers of polyalkyl siloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, polyether siloxane and mixtures thereof. Amino silicones are often formulated with shampoo compositions. Amino silicones are silicones that contain at least one primary amine, secondary amine, tertiary amine or a quaternary ammonium group. High molecular weight silicone gums can also be used. Another useful type is cross-linked silicone elastomers such as dimethicone / vinyl / dimethicone cross polymers (for example Dow Corning 9040 and 9041).
    [059] Diameters of numerical average particle size for silicones can range from approximately 0.01 micron to approximately 50 micron, most preferably from approximately 0.01 to approximately 0.5 micron.
    [060] Advantageously the compositions of this invention can include a premix of a silicone microemulsion. The microemulsion is an emulsion of silicone particles stabilized with aqueous surfactant with a numerical average particle diameter ranging from approximately 10 to approximately 1,000 nm, preferably from approximately 100 to approximately 500 nm.
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    13/21 [061] Examples of preformed silicone emulsions include DC2-1766, DC2-1784, DC-1785, DC-1786, DC-1788 emulsions and DC2-1865 and DC2-1870 microemulsions, all available from Dow Corning . These are all amodimethicone emulsions such as DC939 (from Dow Corning) and SME253 (from GE Silicones).
    [062] Amounts of silicone in compositions where present may vary from approximately 0.01 to approximately 10% by weight, preferably from approximately 0.1 to approximately 8% by weight, more preferably from approximately 0.3 to approximately 5% by weight by weight of the shampoo compositions.
    Cationic Polymer [063] A cationic polymer is an optional substance, but preferred in shampoo compositions according to the invention, to increase the conditioning performance of the shampoo.
    [064] The cationic polymer can be a homopolymer formed by two or more types of monomers. The molecular weight of the polymer in general is between 5,000 and 10,000,000, typically at least 10,000 and preferably in the range 100,000 to approximately 2,000,000. The polymers have nitrogen containing groups such as quaternary ammonium or protonated amino groups or a mixture of these.
    [065] The cationic nitrogen-containing group is generally present as a substituent in a fraction of the total monomeric units of the cationic polymer. Thus, when the polymer is not a homopolymer it can contain non-cationic spacer monomer units. Such polymers are described in the CTFA Cosmetic Ingredient Directory, 3rd edition. The ratio of cationic to non-cationic monomer units is selected to produce a polymer that has a cationic charge density in the required range.
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    14/21 [066] Suitable cationic conditioning polymers include, for example, vinyl monomer copolymers that feature cationic amine or quaternary ammonium functionality with water-soluble spacer monomers such as (meth) acrylamide, alkyl and dialkyl (meth) acrylamides, alkyl ( met) acrylate, vinyl caprolactone and vinyl pyrrolidine. The alkyl and dialkyl substituted monomers preferably have C1-C7 alkyl groups, more preferably C1-3 alkyl groups. Other suitable spacers include vinyl esters, vinyl alcohol, maleic anhydride, propylene glycol and ethylene glycol.
    [067] Cationic amines can be primary, secondary or tertiary amines, depending on the particular species and the pH of the composition. In general secondary and tertiary amines, especially tertiary amines are preferred.
    [068] Vinyl substituted amine monomers and amines can be polymerized to the amine form and then converted to ammonium by quaternization.
    [069] Cationic conditioning polymers may comprise mixtures of monomeric units derived from amine- and / or quaternary-substituted ammonium and / or compatible spacer monomers.
    [070] Suitable cationic conditioning polymers include, for example:
    -copolymers of 1-vinyl-2-pyrrolidine and 1-vinyl-3-methylimidazole salt (for example chloride salt), called in the industry by Cosmetic, Toiletry, and Fragrance Association, (CTFA) as polyquaternary-16. This material is commercially available from BASF Wyandotte Corp. (Parsippany, NJ, USA) under the trade name LUVIQUAT (for example LUVIQUATFC 370);
    -copolymers of 1-vinyl-2-pyrrolidine and methacrylate
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    15/21 dimethylaminoethyl, called in industry (CTFA) as polyquaternary-11. This material is commercially available from Gaf Corporation (Wayne, NJ, USA) under the trade name GAFQUAT (for example, GAFQUAT 755N);
    -polymers containing cationic dialyl quaternary ammonium including, for example, dimethyldiallylammonium chloride homopolymer and copolymers of acrylamide and dimethyldiallylammonium chloride, referred to in the industry (CTFA) as polyquaternary 6 and polyquaternary 7, respectively;
    - mineral acid salts of alkyl esters of homo-and co-polymers of unsaturated carboxylic acids having 3 to 5 carbon atoms, (as described in U.S. patent document 4,009,256);
    -cationic polyacrylamides (as described in patent document WO95 / 22311).
    [071] Other cationic conditioning polymers that can be used include cationic polysaccharides, such as cationic cellulose derivatives, cationic starch derivatives and cationic guar gum derivatives. Suitably, such cationic polysaccharide polymers have a charge density in the range of 0.1 to 4 meq / g.
    [072] Cationic polysaccharide polymers suitable for use in compositions of the invention include those of the formula:
    AO- [RN + (R 1 ) (R 2 ) (R 3 ) X], where: A is a residual anhydroglucose group, such as a starch or cellulose anhydroglucose residue. R is an alkylene, oxyalkylene, polyoxyalkylene, or hydroxyalkylene group or a combination thereof. R 1 , R 2 and R 3 independently represent alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, or alkoxyaryl groups, each group containing up to approximately 18 carbon atoms. The total number of carbon atoms for each cationic portion (ie, the sum of carbon atoms in R 1 ,
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    16/21
    R 2 and R 3 ) are preferably approximately 20 or less, and X is an anionic counterion.
    [073] Cationic cellulose is manufactured by Amerchol Corp. (Edison, NJ, USA) in its Polymer JR (trademark) and LR (trademark) series of polymers, such as hydroxyethyl cellulose salts reacted with substituted ammonium epoxide, called in the industry (CTFA) as polyquaternary 10. Another type of cationic cellulose includes the polymeric quaternary ammonium d ehydroxyethyl cellulose with ammonium-substituted lauryl dimethyl epoxide, called polyquaternary 24 (CTFA) industry. These materials are manufactured by Amerchol Corp. (Edison, NJ, USA) under the trade name Polymer LM-200.
    [074] Other suitable cationic polysaccharide polymers include cellulose ethers containing quaternary nitrogen (for example as described in U.S. patent document 3,962,418), and copolymers of etherified cellulose and starch (for example as described in U.S. patent document 3,958,581).
    [075] A particularly suitable type of cationic polysaccharide polymer, which can be used is a derivative of cationic guar gum such as hydroxypropyltrimony guar chloride (commercially available from Rhone-Poulenc in its trademark JAGUAR series).
    [076] Examples are JAGUAR C13S, which has a low degree of substitution of cationic groups and high viscosity. JAGUAR C15, which has a moderate degree of substitution and low viscosity, JAGUAR C17 (high degree of substitution, high viscosity), JAGUAR C16, which is a hydroxypropylated cationic guar derivative containing a low level of substituting groups as well as quaternary ammonium groups cationic and JAGUAR 162 which is a high transparency, medium guar viscosity having a low degree of substitution.
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    17/21 [077] Preferably, the cationic conditioning 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.
    [078] The cationic conditioning polymer is generally present in compositions of the invention at levels of 0.01 to 5, preferably 0.05 to 1, more preferably 0.08 to 0.5 weight percent of the composition.
    [079] When the cationic conditioning polymer is present in a shampoo composition according to the invention, it is preferred if the copolymer is present as emulsion particles with an average diameter (D3.2 as measured by light scattering using a Malvern particle size meter) of 2 micrometers or less.
    [080] Shampoo compositions of the invention are preferably aqueous, that is, they contain water or an aqueous solution or a lyotropic liquid crystalline phase as their major component. Suitably, the composition comprises 50 to 98%, preferably 60 to 90% water by weight based on the total weight of the composition.
    Suspending Agent [081] Preferably the shampoo composition of the invention further comprises a suspending agent. Suitable suspending agents are selected from polyacrylic acids, cross-linked polymers of acrylic acid, copolymers of acrylic acid with a hydrophobic monomer, copolymers of monomers containing carboxylic acid and acrylic esters, cross-linked copolymers of acrylic acid and acrylate esters, and heteropolysaccharide gum derivatives crystals of long chain acila. The long-chain acyl derivative is desirably selected from ethylene glycol stearate, fatty acid alkanolamides having 16 to 22 carbon atoms and mixtures thereof. Ethylene glycol distearate and
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    18/21 polyethylene glycol 3 distearate are derived from long-chain acyl, as these impart a pearly luster to the composition. Polyacrylic acid is commercially available as Carbopol 420, Carbopol 488 or Carbopol 493. Polymers of acrylic acid cross-linked with a polyfunctional agent can also be used; they are commercially available as Carbopol 910, Carbopol 934, Carbopol 941 and Carbopol 980. An example of a suitable copolymer of a carboxylic acid containing monomer and esters of acrylic acid is Carbopol 1342. All Carbopol materials (trademark) are marketed by Goodrich.
    [082] Suitable cross-linked polymers of acrylic acid and acrylate esters are Pemulen TR1 or Pemulen TR2. A suitable heteropolysaccharide gum is xanthan gum, for example available as Kelzan mu.
    [083] Mixtures of any of the suspending agents above may be used. A mixture of cross-linked acrylic acid polymer and long-chain crystalline acyl derivative is preferred.
    [084] Suspending agent, when included, is generally present in a shampoo composition of the invention at levels of 0.1 to 10%, preferably 0.5 to 6%, more preferably 0.9 to 4 % by the total weight of suspending agent based on the total weight of the composition.
    [085] A composition of the invention may contain other substances to increase performance and / or acceptability by the consumer. Such substances include fragrance, paints and pigments, pH adjusting agents, pearlescent or opacifying agents, viscosity modifiers, preservatives and natural hair nutrients such as botanical substances, fruit extracts, sugar derivatives and amino acids.
    [086] The examples are illustrated with reference to the following non-limiting examples. Inventions, according to the invention, are
    Petition 870170080656, of 10/23/2017, p. 31/37
    19/21 demonstrated by a number, comparative inventions are demonstrated by a letter.
    Examples [087] The advantage of the invention will be demonstrated by the following examples. The effect of the inventive formulations in relation to the improvement of the epidermal surface layer barrier is shown through a controlled forearm application test (FCAT) with the following measurements made before application (as a baseline) and after the final test
    a) visual analysis for dryness;
    b) loss of transepidermal water (TEWL); and,
    c) corneometer measurement.
    [088] The FCAT test involved 16 people and a baseline measurement for parameters a), b) and c); treatment with a control product (formulation A), and a product according to the invention (formulation 1) for 2 days with 3 washing sessions of 2 applications of the product per day in a minimum of 2 hours interval (resulting in 6 total product applications per day). The sites were washed for 10 seconds, with 90 seconds of later retention and washed for 15 seconds. The final measurement was made on the 3rd day ~ 19 hours after application of the final product.
    Formulations T [089] The formulation used in the test procedure is also shown as example I of the formulation list, compared with an anti-dandruff shampoo - SLES / ZnPTO standard, the main ingredients being shown below:
    First name INCI Commercial name Controls ‘A’% by weight Ex 1% by weight Sodium lauryl sulfate Texapon N701 14.0 6.0 Cocoamidopropyl betaine Tegobetaine CK 1.6 3.0 Fatty acyl isethionate product 1- 2.0
    Petition 870170080656, of 10/23/2017, p. 32/37
    20/21
    First name INCI Commercial name Controls ‘A’% by weight Ex 1% by weight Sodium cocoyl glycinate Hostapon SG - 4.0 Zinc pyrithione Zinc Omadine FPS 1.0 1.0
    [090] The product of fatty acyl isethionate is sodium cocoyl isethionate, stearic acid, coconut fatty acid, sodium isethionate and water produced by the company Unilever.
    [091] Formulation 1 was compared in a linear blind comparison against an 'A' control formulation with respect to barrier measurements of the epidermal surface layer:
    a) visual analysis of dryness;
    b) loss of trans epidermal water (TEWL); and,
    c) corneometer measurement.
    [092] The visual analysis of the dryness was done through a trained advisor, a lower value indicates a better score indicating less dryness.
    [093] Transepidermal water loss was measured on an Instrumental ServoMed, a lower TEWL value indicates an improved (stronger) epidermal surface layer barrier because less water has been lost through the epidermal barrier.
    [094] The corneometer measures capacitance, this is a measure of skin hydration, a higher level shows better skin hydration, this is indicative of an improved condition of the epidermal surface layer barrier (or an epidermal barrier ie less damaged), this value was measured on a Corneometer CM 825 supplied by Courage + Khazaka electronic GmbH.
    Example 1
    Epidermal barrier condition measurement Control Ex. 1 Visual dryness analysis (advisory score) 1.55 0.85 Loss of epidermal water (g / m 2 / h) 3.52 1.55 Measurement with corneometer (arbitrary units) -5.84 -1.00
    Petition 870170080656, of 10/23/2017, p. 33/37
    21/21 [095] In each case, the formulation of example 1 provides a better value, indicating an improvement in the condition of the epidermal surface layer barrier. For all three tests, scores were significantly different (p <0.05, Fishers LSD) between control formulation 'A' and formulation 1.
    [096] These tests show that a surfactant system that includes a combination of a fatty acyl isethionate product and an alkyl glycinate and / or alkyl carboxyglycinate, provides an improvement in the barrier condition of the epidermal surface layer. This produces improved dandruff shampoos.
    Example Formulations
    First name INCI Commercial name Exl% by weight Exll / o in spite Ex III in spite Ex IV ‘/ o despite Sodium lauryl sulfate Texapon N70 3.0 6.0 2.0 4.0 Cocoamidopropyl betaine Tegobetaine CK 3.0 1.6 3.0 2.0 Fatty acyl isethionate product 12.0 3.0 6.0 5.0 Sodium cocoyl glycinate Hostapon SG 4.0 4.0 5.0 4.0 Acrylate methacrylate polymer / Streareth-20 Aculyn 88 1.0 1.0 0.75 1.0 Silicone emulsion 23.0 2.0 3.0 2.0 Hydroxypropyltrimony guar chloride Cesmetic BF-7 0.25 0.25 0.25 0.25 Zinc pyrithione Zinc Omadine FPS 1.0 1.0 1.0 1.0 Fragrance 0.75 0.75 0.75 0.75 Aqua + smaller qsp 100 qsp 100 qsp 100 qsp 100
    [097] The product of fatty acyl isethionate is sodium cocoyl isethionate, stearic acid, coconut fatty acid, sodium isethionate and water produced by the company Unilever.
    [098] Mixing of silicone emulsions from Wacker and Dow.
    Petition 870170080656, of 10/23/2017, p. 34/37
    1/2
    权利要求:
    Claims (9)
    [1]
    1. ANTICASPA SHAMPOO, characterized by comprising:
    (a) from 0.1 to 5% by weight of an anti-dandruff zinc salt;
    (b) from 1 to 8% by weight of an alkyl glycinate and / or an alkyl carboxyglycinate;
    (c) from 2 to 16% by weight of an alkyl sulfate and / or an ethoxylated alkyl sulfate anionic surfactant; and, (d) from 1 to 10% by weight of a fatty acyl isethionate product, whose product comprises from 40 to 80% by weight of fatty acyl isethionate and from 15 to 50% by weight of free fatty acid and / or fatty acid salt.
    [2]
    2/2 having an alkyl group of C8-22 carbon atoms.
    2. SHAMPOO according to claim 1, characterized in that the anti-dandruff zinc salt is zinc pyrithione (ZnPTO).
    [3]
    Shampoo according to any one of claims 1 to 2, characterized in that the anti-dandruff zinc salt is present at a level of 0.25 to 2.5% by weight.
    [4]
    Shampoo according to any one of claims 1 to 3, characterized in that the alkyl sulfate and / or ethoxylated alkyl sulfate anionic surfactant comprises from 3 to 12% by weight, preferably from 4 to 10% by weight of lauryl sodium sulfate ether having an average degree of ethoxylation of 0.5 to 3.
    [5]
    Shampoo according to any one of claims 1 to 4, characterized in that alkyl glycinate and / or alkyl carboxyglycinate is present at a level of 1 to 8% by weight, preferably from 2 to 6% by weight, and has an alkyl group comprising of Ce-22 carbon atoms, where the glycinate is in the form of a salt with a solubilization cation, such as sodium, potassium, ammonium or substituted ammonium.
    [6]
    6. SHAMPOO according to any one of claims 1 to 5, characterized in that the glycinate is sodium alkyl carboxyglycinate
    Petition 870170080656, of 10/23/2017, p. 35/37
    [7]
    Shampoo according to any one of claims 1 to 6, characterized in that it further comprises from 0.1 to 10% by weight of a betaine surfactant, preferably an alkyl amidopropyl betaine.
    [8]
    Shampoo according to any one of claims 1 to 7, characterized in that it further comprises from 0.1 to 5% by weight of a cationic polymer, preferably a cationic polysaccharide polymer.
    [9]
    9. SHAMPOO according to claim 1, characterized by comprising:
    (a) from 0.25 to 2.5% by weight of zinc pyrithione;
    (b) from 2 to 6% by weight of sodium alkyl carboxyglycinate having a C8-22 carbon atom alkyl group;
    (c) from 4 to 10% by weight of sodium lauryl ether sulfate having an average degree of ethoxylation of 0.5 to 3;
    (d) from 1 to 10% by weight of a fatty acyl isethionate product, whose product comprises from 40 to 80% by weight of fatty acyl isethionate and from 15 to 50% by weight of free fatty acid and / or salt fatty acid; and, (e) from 0.1 to 5% by weight of cocoamidopropyl betaine.
    Petition 870170080656, of 10/23/2017, p. 36/37
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013002445B1|2018-01-30|ANTICASPA Shampoo
    EP2645986B1|2015-02-25|Anti-dandruff shampoo
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    同族专利:
    公开号 | 公开日
    AU2011290919A1|2013-02-28|
    BR112013002445A2|2016-05-24|
    EA023762B1|2016-07-29|
    CA2805704A1|2012-02-23|
    EP2605832A1|2013-06-26|
    JP6134265B2|2017-05-24|
    MX2013001938A|2013-03-08|
    CN103052427B|2015-12-09|
    CN103052427A|2013-04-17|
    EA201300252A1|2013-06-28|
    AU2011290919B2|2014-02-27|
    EP2605832B1|2014-05-28|
    AR082703A1|2012-12-26|
    WO2012022553A1|2012-02-23|
    US9242002B2|2016-01-26|
    US20130150338A1|2013-06-13|
    PL2605832T3|2014-10-31|
    KR20130136966A|2013-12-13|
    ES2493965T3|2014-09-12|
    JP2013534232A|2013-09-02|
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    法律状态:
    2017-07-25| B15K| Others concerning applications: alteration of classification|Ipc: A61K 8/36 (2006.01), A61K 8/46 (2006.01), A61K 8/4 |
    2017-07-25| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2017-11-21| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2018-01-30| B16A| Patent or certificate of addition of invention granted|
    2021-05-18| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 10A ANUIDADE. |
    2021-09-08| B24J| Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)|Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2628 DE 18-05-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP10173221.2|2010-08-18|
    EP10173221|2010-08-18|
    PCT/EP2011/062043|WO2012022553A1|2010-08-18|2011-07-14|Anti-dandruff shampoo|
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