Hydroxy acids for scalp and hair in personal care compositions

Abstract

A personal care composition comprising 2% to 10% anionic surfactant and 0.5% to 5% hydroxy acid selected from the group consisting of salicylic acid combined with citric acid, wherein the personal cleansing composition has a pH of approximately 2.5 to approximately 5.5.

Description

[Technical Field]

[0001] This invention relates to hydroxy acids for scalp, facial / body skin, and hair in personal care compositions that can provide benefits to the scalp, facial / body skin, and hair. [Background technology]

[0002] Hydroxy acids are a class of substances that have been commonly used in the skincare industry to improve skin health through chemical exfoliation and oil control of the surface skin. These ingredients are typically highly water-soluble and are often delivered via lotions or topical ointments that remain on the skin after application, ensuring delivery of the ingredients to the targeted treatment area. In the cleansing space of hair and scalp and facial / body skin, rinse-off shower treatments containing surfactants (i.e., shampoos, beard washes, and drenching washes) are a far more common form for delivering beneficial ingredients to hair, scalp, and facial / body skin. [Overview of the project] [Problems that the invention aims to solve]

[0003] Therefore, there is a need for the invention of a rinse-off cleansing product form that can effectively deliver hydroxy acid active substances to the hair, scalp, and facial / body skin. [Means for solving the problem]

[0004] The present invention relates to a personal care composition comprising about 2% to about 10% anionic surfactant and 0.5% to 5% hydroxy acid selected from the group consisting of salicylic acid combined with citric acid, wherein the personal cleansing composition has a pH of about 2.5 to about 5.5. [Modes for carrying out the invention]

[0005] Unless otherwise specified, all percentages and ratios used herein are based on the weight of the whole composition. Unless otherwise specified, all measurements are understood to be performed under ambient conditions, where “ambient conditions” means conditions of approximately 25°C, approximately 1 atmosphere, and approximately 50% relative humidity. All numerical ranges include narrower ranges, and the upper and lower range limits described can be combined to create further ranges not explicitly described.

[0006] The compositions of the present invention include, essentially consist of, or comprise the essential and optional components described herein. As used herein, “essentially consist of” means that a composition or component may include additional components, but only if the additional components do not substantially alter the basic and novel properties of the claimed composition or method.

[0007] As used in relation to the composition, "apply" or "apply" means applying or spreading the composition of the present invention onto keratinous tissue such as hair.

[0008] "Dermatologically acceptable" means that the composition or component described is suitable for use in contact with human skin tissue without excessive toxicity, incompatibility, instability, allergic reactions, etc.

[0009] "A safe and effective amount" means an amount of compound or composition sufficient to significantly induce a beneficial effect.

[0010] This specification concludes with "Claims" that specifically point to and clearly claim the present invention, but the present invention is thought to be better understood from the following description.

[0011] As used herein, the term “fluid” includes liquids and gels.

[0012] As used herein, the articles “a” and “an” are understood to mean one or more of the items claimed or described when used in the claims.

[0013] As used herein, “comprising” means that other steps and other raw materials that do not affect the final result can be added. This term encompasses the terms “consisting of” and “consisting essentially of”.

[0014] As used herein, “mixture” means a simple combination of materials and any compounds that can result from these combinations.

[0015] When used herein, “molecular weight” refers to the weight-average molecular weight unless otherwise specified. The molecular weight is measured using gel permeation chromatography (“GPC”), an industrial standard method.

[0016] When ranges of amounts are recited, these are the total amounts of the respective components in the composition, or, if more than one applies to the component definition range, the total amounts of all components in the composition that conform to that definition.

[0017] For example, if a composition contains 1% - 5% aliphatic alcohol, a composition containing 2% stearyl alcohol and 1% cetyl alcohol and no other aliphatic alcohols will fall within this range.

[0018] The amount of each specific component described below, or their mixtures, can occupy up to (or 100%) of the total amount of the components in the personal care composition.

[0019] When used herein, “Personal Care Composition” includes products such as shampoos, shower gels, liquid hand washes, hair dyes, facial cleansers, beard washes, soak washes, and other surfactant-based liquid compositions intended to cleanse the scalp, as well as body hair and skin.

[0020] As used herein, the terms “include,” “includes,” and “including” are understood to mean “comprise,” “comprises,” and “comprising,” respectively, in an unrestricted sense.

[0021] All percentages, parts, and ratios are based on the total weight of the compositions of the present invention unless otherwise specified. All such weights relating to the listed components are based on their activity levels and therefore do not include carriers or by-products that may be present in commercially available materials.

[0022] Unless otherwise noted, all concentrations of components or compositions refer to the active portion of that component or composition, excluding impurities that may be present in the commercially available source of such components or compositions, such as residual solvents or by-products.

[0023] It should be understood that all maximum numerical limits given throughout this specification include all lower numerical limits as if they were explicitly stated herein. All minimum numerical limits given throughout this specification include all higher numerical limits as if they were explicitly stated herein. All numerical ranges given throughout this specification include all narrow numerical ranges that fall within such broad numerical ranges as if they were explicitly stated herein.

[0024] A. Hydroxy acid Alpha- and beta-hydroxy acids are a class of substances that have long been used in the cosmetics industry. Some hydroxy acids, such as citric acid, are known to be effective metal chelating agents. It is hypothesized that chelation of metals from hair, scalp, and body hair enables health benefits to hair, scalp, and skin by removing excess metal accumulation within and on the surface. Knowing this, the present invention screened various hydroxy acids for their ability to chelate calcium from the lipid matrix (i.e., scalp / face and body skin / hair). In this screening study, some hydroxy acids performed better than others. The hypothesis for this is that some hydroxy acids have a higher driving force for penetration into the lipid matrix, as determined by the octanol-water partition coefficient (LogP for neutral species, LogD for charged species), and some hydroxy acids have a higher affinity for binding to metals (LogK 金属 This presents a double hypothesis in that respect.

[0025] This invention has found that a mixture of several hydroxy acids (salicylic acid and citric acid) can chelate metals from hair, scalp, and skin of the face and body. Salicylic acid is used for internal metal chelation, while citric acid is used for surface-level chelation. The removal and binding of metals from both of these locations is important because it can allow for a reduction in surface-level accumulation from sources such as hard water, and furthermore, it can help modulate pathways that allow this class of materials to act as chemical stripping agents.

[0026] The delivery of hydroxy acids to the hair, scalp, and skin of the face and body from rinse-off cleansing treatments is not a trivial matter, as these ingredients are highly water-soluble under typical formulation conditions and often end up being washed away during the rinsing process. Several key formulation parameters that enable increased delivery of hydroxy acids to the hair, scalp, and skin of the face and body have been discovered within the rinse-off cleansing treatment space.

[0027] Furthermore, non-limiting examples of hydroxy acids include salicylic acid, citric acid, acetic acid, glycolic acid, lactic acid, tartaric acid, malic acid, mandelic acid, capric acid, caprylic acid, azelaic acid, and gluconic acid.

[0028] In the present invention, the amount of hydroxy acid present may be about 0.5% to about 5%, about 1% to about 4%, and about 2% to about 3%.

[0029] B. Cleaning surfactants Personal care compositions may contain approximately 2% to 13% of one or more surfactants, approximately 2% to 10% of one or more surfactants, approximately 2% to 8% of one or more surfactants, and approximately 2% to 5% of one or more surfactants, the surfactants which impart cleaning properties to the composition. Surfactant systems include anionic surfactants, and / or combinations of anionic surfactants, and / or combinations of anionic surfactants with co-surfactants selected from the group consisting of amphoteric, zwitterionic, nonionic, and mixtures thereof. Various examples and descriptions of cleaning surfactants are described in U.S. Patent No. 8,440,605, U.S. Patent Application Publication No. 2009 / 155383, and U.S. Patent Application Publication No. 2009 / 0221463, the entirety of which is incorporated herein by reference.

[0030] Suitable anionic surfactants for use in this composition are alkyl and alkyl ether sulfates. Other suitable anionic surfactants are water-soluble salts of organic sulfuric acid reaction products. Still other suitable anionic surfactants are reaction products of fatty acids esterified with isethionic acid and neutralized with sodium hydroxide. Other similar anionic surfactants are described in U.S. Patents 2,486,921, 2,486,922, and 2,396,278, which are incorporated herein by reference in their entirety.

[0031] Examples of anionic surfactants used in personal care compositions include ammonium lauryl sulfate, ammonium laureth sulfate, C10-15 pareth sulfate, C10-15 alkyl sulfate, C11-15 alkyl sulfate, ammonium decyl sulfate, ammonium deceth sulfate, ammonium undecyl sulfate, ammonium undeceth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, sodium lauryl monoglyceride sulfate, sodium lauryl sulfate, sodium laureth sulfate, sodium C10-15 pareth sulfate, sodium C10-15 alkyl sulfate, sodium C11-15 alkyl sulfate, sodium decyl sulfate, and sodium deceth sulfate. Examples include thorium, sodium undecyl sulfate, sodium undeceth sulfate, potassium lauryl sulfate, potassium laureth sulfate, potassium C10-15 pareth sulfate, potassium C10-15 alkyl sulfate, potassium C11-15 alkyl sulfate, potassium decyl sulfate, potassium deceth sulfate, potassium undecyl sulfate, potassium undeceth sulfate, sodium lauryl sarcosinate, sodium lauroyl sarcosinate, lauryl sarcosine, cocoyl sarcosine, ammonium cocoyl sulfate, ammonium lauroyl sulfate, sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate, potassium lauryl sulfate, triethanolamine lauryl sulfate, triethanolamine lauryl sulfate, monoethanolamine cocoyl sulfate, monoethanolamine lauryl sulfate, sodium tridecylbenzenesulfonate, sodium dodecylbenzenesulfonate, sodium cocoyl isethionate, and combinations thereof. Anionic surfactants may be sodium lauryl sulfate or sodium laureth sulfate.

[0032] The composition of the present invention also a) R1O(CH2CHR3O) y SO3M, b) CH3(CH2) zCHR2CH2O(CH2CHR3O) y SO3M, and c) These mixtures [In the formula, R1 is CH3(CH2) 10 The material may contain an anionic surfactant selected from the group consisting of: R2 represents H, or a hydrocarbon group containing 1 to 4 carbon atoms such that the sum of carbon atoms in z and R2 is 8; R3 is H or CH3; y is 0 to 7, with the average value of y being approximately 1 when y is not zero (0); and M is a monovalent or divalent positively charged cation.

[0033] Suitable anionic alkyl sulfate and alkyl ether sulfate surfactants include, but are not limited to, those having branched alkyl chains synthesized from C8-C18 branched alcohols that can be selected from the group consisting of Garbet alcohols, aldol condensation-derived alcohols, oxo alcohols, FT oxo alcohols, and mixtures thereof. Non-limiting examples of 2-alkyl branched alcohols include 2-methyl-1-undecanol, 2-ethyl-1-decanol, 2-propyl-1-nonanol, 2-butyl-1-octanol, 2-methyl-1-dodecanol, 2-ethyl-1-undecanol, 2-propyl-1-decanol, 2-butyl-1-nonanol, 2-pentyl-1-octanol, 2-pentyl-1-heptanol, and trademarks LIAL® (Sasol), ISALCHEM Examples include oxo alcohols such as those sold under the registered trademark (Sasol) and NEODOL (Shell), as well as garvet and aldol condensation derivative alcohols such as 2-ethyl-1-hexanol, 2-propyl-1-butanol, 2-butyl-1-octanol, 2-butyl-1-decanol, 2-pentyl-1-nonanol, 2-hexyl-1-octanol, 2-hexyl-1-decanol, and those sold under the trademark ISOFOL (Sasol), or sold as alcohol ethoxylates and alkoxylates under the trademarks LUTENSOL XP (BASF) and LUTENSOL XL (BASF).

[0034] Examples of anionic alkyl sulfates and alkyl ether sulfates include those synthesized from C8-C18 branched alcohols derived from butylene or propylene, sold under the trademark names EXXAL (Exxon) and Marlipal (Sasol). These include anionic surfactants of the subclass of trideceth-n sodium sulfate (STnS), where n is about 0.5 to about 3.5. Exemplary surfactants of this subclass are trideceth-2 sodium sulfate and trideceth-3 sodium sulfate. Compositions of the present invention may also include tridecyl sodium sulfate.

[0035] The composition may contain additional anionic surfactants selected from the group consisting of sulfosuccinates, isethionates, sulfonates, sulfoacetates, glucose carboxylates, alkyl ether carboxylates, acyl taurates, and mixtures thereof.

[0036] Non-limiting examples of acyl taurates include sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, sodium caproyl methyl taurate, sodium methyl oleoyl taurate, and combinations thereof.

[0037] The compositions of the present invention may also include anionic alkyl and alkyl ether sulfosuccinates, and / or dialkyl and dialkyl ether sulfosuccinates and mixtures thereof. The dialkyl and dialkyl ether sulfosuccinates may be C6-15 linear or branched dialkyl or dialkyl ether sulfosuccinates. The alkyl moieties may be symmetric (i.e., the same alkyl moiety) or asymmetric (i.e., different alkyl moieties). Non-limiting examples include disodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, sodium bistridecyl sulfosuccinate, sodium dioctyl sulfosuccinate, sodium dihexyl sulfosuccinate, sodium dicyclohexyl sulfosuccinate, sodium diamyl sulfosuccinate, sodium diisobutyl sulfosuccinate, linear bis(tridecyl) sulfosuccinates and mixtures thereof.

[0038] The anionic surfactants that may be present in the personal care composition may be one or more surfactants in an amount of approximately 2% to approximately 10%, one or more surfactants in an amount of approximately 2% to approximately 8%, or one or more surfactants in an amount of approximately 2% to approximately 5%.

[0039] Personal care compositions may contain co-surfactants. Co-surfactants can be selected from the group consisting of amphoteric surfactants, zwitterionic surfactants, nonionic surfactants, and mixtures thereof. Examples of co-surfactants include, but are not limited to, lauramidopropyl betaine, cocamidopropyl betaine, lauryl hydroxysultaine, sodium lauroamphoacetate, disodium cocoamphodiacetate, cocamide monoethanolamide, and mixtures thereof.

[0040] The personal care composition may further contain one or more amphoteric, bipolar, nonionic cosurfactants, or mixtures thereof, in amounts of approximately 0.25% to approximately 8% by weight, approximately 1% to approximately 7% by weight, or approximately 2% to approximately 6% by weight.

[0041] Suitable amphoteric or zwitterionic surfactants for use in the personal care compositions described herein include those known for use in personal care cleansers. Non-limiting examples of suitable zwitterionic or amphoteric surfactants are described in U.S. Patents 5,104,646 and 5,106,609, which are incorporated herein by reference in their entirety.

[0042] Suitable amphoteric cosurfactants for use in compositions are described as derivatives of aliphatic secondary and tertiary amines, in which the aliphatic groups can be linear or branched, and one of the aliphatic substituents contains about 8 to about 18 carbon atoms, and the other contains an anionic group such as a carboxyl, sulfonate, sulfate, phosphate, or phosphonate. Suitable amphoteric surfactants include sodium cocaminopropionate, sodium cocaminodipropionate, sodium cocoamphoacetate, sodium cocoamphodiacetate, sodium cocoamphohydroxypropylsulfonate, sodium cocoamphopropionate, sodium corn amphopropionate, sodium lauraminopropionate, sodium lauroamphoacetate, sodium lauroamphodiacetate, sodium lauroamphohydroxypropylsulfonate, sodium lauroamphopropionate, sodium corn amphopropionate, sodium lauriminodipropionate, ammonium cocaminopropionate, ammonium cocaminodipropionate, ammonium cocoamphoacetate, ammonium cocoamphodiacetate, ammonium cocoamphohydroxypropylsulfonate, ammonium cocoamphopropionate, ammonium corn amphopropionate, ammonium lauraminopropionate, and lauroamphovine. Ammonium acid, ammonium lauroamphodiacetate, ammonium lauroamphohydroxypropylsulfonate, ammonium lauroamphopropionate, ammonium corn amphopropionate, ammonium lauriminodipropionate, triethanolamine cocaminopropionate, triethanolamine cocaminodipropionate, triethanolamine cocoamphoacetate, triethanolamine cocoamphohydroxypropylsulfonate, triethanolamine cocoamphopropionate, triethanolamine corn amphopropionate, triethanolamine lauraminopropionate, triethanolamine lauroamphoacetate, triethanolamine lauroamphohydroxypropylsulfonate, triethanolamine lauroamphopropionate, triethanolamine corn amphopropionate, triethanolamine lauriminodipropionate, cocoamphodipropionic acid, disodium caproamphodiacetate,Examples include, but are not limited to, substances selected from the group consisting of disodium caproamphodipropionate, disodium capryloamphodiacetate, disodium cocoamphocarboxyethyl hydroxypropyl sulfonate, disodium cocoamphodiacetate, disodium cocoamphodipropionate, disodium dicarboxyethyl cocopropyldiamine, disodium laureth-5 carboxyamphodiacetate, disodium lauriminodipropionate, disodium lauroamphodiacetate, disodium lauroamphodipropionate, disodium oleoamphodipropionate, PPG-2-isodecetyl-7 carboxyamphodiacetate, lauraminopropionic acid, lauroamphodipropionic acid, laurylaminopropylglycine, lauryldiethylenediaminoglycine, and mixtures thereof.

[0043] This composition may contain a zwitterionic copolymer, which is a derivative of an aliphatic quaternary ammonium, phosphonium, and sulfonium compound, wherein the aliphatic group may be linear or branched, one of the aliphatic substituents contains about 8 to about 18 carbon atoms, and the other contains an anionic group such as a carboxy, sulfonate, sulfate, phosphate, or phosphonate. The zwitterionic surfactant may be selected from the group consisting of cocamidoethyl betaine, cocamidopropylamine oxide, cocamidopropyl betaine, cocamidopropyl dimethylaminohydroxypropyl hydrolyzed collagen, cocamidopropyl dimonium hydroxypropyl hydrolyzed collagen, cocamidopropyl hydroxysultaine, cocobetaine amphopropionate, coco-betaine, coco-hydroxysultaine, coco / oleamidopropyl betaine, coco-sultaine, lauramidopropyl betaine, lauryl betaine, lauryl hydroxysultaine, lauryl sultaine, and mixtures thereof.

[0044] Suitable nonionic surfactants for use in the present invention include those described in McCutcheion's Detergents and Emulsifiers, North American edition (1986), Allured Publishing Corp., and McCutcheion's Functional Materials, North American edition (1992). Suitable nonionic surfactants for use in the personal care compositions of the present invention include, but are not limited to, polyoxyethylene-modified alkylphenols, polyoxyethylene-modified alcohols, polyoxyethylene-modified polyoxypropylene glycols, glyceryl esters of alkanates, polyglyceryl esters of alkanates, propylene glycol esters of alkanates, sorbitol esters of alkanates, polyoxyethylene-modified sorbitol esters of alkanates, polyoxyethylene glycol esters of alkanates, polyoxyethylene-modified alkanates, alkanolamides, N-alkylpyrrolidones, alkyl glycosides, alkyl polyglucosides, alkylamine oxides, and polyoxyethylene-modified silicones.

[0045] The co-surfactant may be a nonionic surfactant selected from the group of alkanolamides, including cocamide, cocamide methyl MEA, cocamide DEA, cocamide MEA, cocamide MIPA, lauramide DEA, lauramide MEA, lauramide MIPA, myristamide DEA, myristamide MEA, PEG-20 cocamide MEA, PEG-2 cocamide, PEG-3 cocamide, PEG-4 cocamide, PEG-5 cocamide, PEG-6 cocamide, PEG-7 cocamide, PEG-3 lauramide, PEG-5 lauramide, PEG-3 oleamide, PPG-2 cocamide, PPG-2 hydroxyethyl cocamide, PPG-2 hydroxyethyl isostearamide, and mixtures thereof.

[0046] Typical polyoxyethylene alcohols include alkyl chains in the C9-C16 range and having approximately 1 to 110 alkoxy groups, such as laureth-3, laureth-23, ceteth-10, steareth-10, steareth-100, beheneth-10, and those commercially available from Shell Chemicals (Houston, Texas) under the trademark names Neodol® 91, Neodol® 23, Neodol® 25, Neodol® 45, Neodol® 135, Neodol® 167, Neodol® PC100, Neodol® PC200, and Neodol® PC600, as well as mixtures thereof, but are not limited to these.

[0047] Similarly, commercially available products include polyoxyethylene aliphatic ethers sold under the trademark name Brij® by Uniqema (Wilmington, Delaware), including, but not limited to, Brij® 30, Brij® 35, Brij® 52, Brij® 56, Brij® 58, Brij® 72, Brij® 76, Brij® 78, Brij® 93, Brij® 97, Brij® 98, Brij® 721, and mixtures thereof.

[0048] Suitable alkyl glycosides and alkyl polyglucosides can be represented by the formula (S)nOR, where S is a sugar moiety such as glucose, fructose, mannose, or galactose, n is an integer from about 1 to about 1000, and R is a C8-C30 alkyl group. Examples of long-chain alcohols from which alkyl groups can be derived include decyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, and similar alcohols. Examples of these surfactants include alkyl polyglucosides, in which case S is a glucose moiety, R is a C8-C20 alkyl group, and n is an integer from about 1 to about 9. Examples of commercially available surfactants include decyl polyglucosides and lauryl polyglucosides available from Cognis (Ambler, Pa) under the trademark names APG® 325CS, APG® 600CS, and APG® 625CS. Also useful herein are sucrose ester surfactants such as sucrose cocoate and sucrose laurate, as well as alkyl polyglucosides available from Dow Chemical Company (Houston, Tx) under the trademark names Triton® BG-10 and Triton® CG-110.

[0049] Other nonionic surfactants suitable for use in the present invention include, but are not limited to, glyceryl esters and polyglyceryl esters, glyceryl monoesters of C12-22 saturated, unsaturated and branched fatty acids, such as glyceryl monoesters, e.g., glyceryl oleate, glyceryl monostearate, glyceryl monopalmitate, glyceryl monobehenate and mixtures thereof, as well as polyglyceryl esters of C12-22 saturated, unsaturated and branched fatty acids, such as polyglyceryl-4 isostearate, polyglyceryl-3 oleate, polyglyceryl-2-sesquioleate, triglyceryl diisostearate, diglyceryl monooleate, tetraglyceryl monooleate and mixtures thereof.

[0050] Similarly, sorbitan esters are useful as nonionic surfactants in this specification. Sorbitan esters of saturated, unsaturated, and branched fatty acids of C12-22 are useful in this specification. These sorbitan esters typically include mixtures of esters such as monoesters, diesters, and triesters. Typical examples of preferred sorbitan esters include sorbitan monolaurate (SPAN® 20), sorbitan monopalmitate (SPAN® 40), sorbitan monostearate (SPAN® 60), sorbitan tristearate (SPAN® 65), sorbitan monooleate (SPAN® 80), sorbitan trioleate (SPAN® 85), and sorbitan isostearate.

[0051] Similarly, suitable for use herein are alkoxylated derivatives of sorbitan esters, all of which are available from Uniqema, including but not limited to polyoxyethylene (20) sorbitan monolaurate (Tween® 20), polyoxyethylene (20) sorbitan monopalmitate (Tween® 40), polyoxyethylene (20) sorbitan monostearate (Tween® 60), polyoxyethylene (20) sorbitan monooleate (Tween® 80), polyoxyethylene (4) sorbitan monolaurate (Tween® 21), polyoxyethylene (4) sorbitan monostearate (Tween® 61), polyoxyethylene (5) sorbitan monooleate (Tween® 81), and mixtures thereof.

[0052] Similarly, alkylphenol ethoxylates are also suitable for use herein, but are not limited to nonylphenol ethoxylates (Tergitol® NP-4, NP-6, NP-7, NP-8, NP-9, NP-10, NP-11, NP-12, NP-13, NP-15, NP-30, NP-40, NP-50, NP-55, NP-70, available from Dow Chemical Company (Houston, TX)) and octylphenol ethoxylates (Triton® X-15, X-35, X-45, X-114, X-100, X-102, X-165, X-305, X-405, X-705, available from Dow Chemical Company (Houston, TX)).

[0053] Similarly, tertiary alkylamine oxides, including lauramine oxide and cocamine oxide, are also suitable for use herein.

[0054] Non-limiting examples of other anionic surfactants, zwitterionic surfactants, amphoteric surfactants, and additional nonionic surfactants suitable for use in personal care compositions are described in McCutcheon's "Emulsifiers and Detergents, 1989 Annual" (published by MCPublishing Co.), and U.S. Patents 3,929,678, 2,658,072, 2,438,091, and 2,528,378, which are incorporated herein by reference in their entirety.

[0055] Suitable surfactant combinations include an average weight percent of alkyl branching of about 0.5% to about 30% by weight, or about 1% to about 25% by weight, or about 2% to about 20% by weight.

[0056] The surfactant combination can have a cumulative average C8-C12 alkyl chain length of approximately 7.5% to 25% by weight, or approximately 10% to 22.5% by weight, or approximately 10% to 20% by weight.

[0057] The surfactant combination can have an average C8-C12 / C13-C18 alkyl chain ratio of approximately 3 to 200, or approximately 25 to 175.5, or approximately 50 to 150, or approximately 75 to 125.

[0058] C. Cationic polymers Personal care compositions also include cationic polymers. These cationic polymers may include at least one of the following: (a) cationic guar polymer, (b) cationic non-guar-galactomannan polymer, (c) cationic tapioca polymer, (d) cationic copolymer of acrylamide monomer and cationic monomer, and / or (e) synthetic non-crosslinked cationic polymer which may or may not form a lyotropic liquid crystal when combined with a cleansing surfactant, and (f) cationic cellulose polymer. Furthermore, the cationic polymers may be mixtures of cationic polymers.

[0059] Personal care compositions may include cationic guar polymers, which are cationically substituted galactomannan (guar) gum derivatives. The guar gum used in the preparation of these guar gum derivatives is typically obtained as a naturally occurring material from the seeds of the guar plant. The guar molecule itself is a linear mannan with alternating single-membered galactose units on mannose units, branched at regular intervals. The mannose units are linked to each other by β(1-4) glycosidic bonds. Galactose branching occurs via α(1-6) bonds. Cationic derivatives of guar gum are obtained by the reaction between the hydroxyl group of polygalactomannan and a reactive quaternary ammonium compound. The degree of substitution of the cationic group on the guar structure must be sufficient to provide the required cationic charge density described above.

[0060] In the present invention, the cationic polymer may include, but is not limited to, a cationic guar polymer having a weight average molecular weight of 2.2 million g / mol, or about 150,000 to about 2.2 million g / mol, or about 200,000 to about 2.2 million g / mol, or about 250,000 to about 2.5 million g / mol, or about 300,000 to about 1.2 million g / mol, or less than about 700 million to about 1 million g / mol. Further, the cationic guar polymer may have a charge density of about 0.2 to about 2.2 meq / g, or about 0.3 to about 2.0 meq / g, or about 0.4 to about 1.8 meq / g, or about 0.5 meq / g to about 1.8 meq / g.

[0061] The cationic guar polymer may have a weight average molecular weight of less than about 1,500,000 g / mol and a charge density of about 0.1 meq / g to about 2.5 meq / g. The cationic guar polymer may have a weight average molecular weight of less than 900,000 g / mol, or about 150,000 to about 800,000 g / mol, or about 200,000 to about 700,000 g / mol, or about 300,000 to about 700,000 g / mol, or about 400,000 to about 600,000 g / mol, about 150,000 to about 800,000 g / mol, or about 200,000 to about 700,000 g / mol, or about 300,000 to about 700,000 g / mol, or about 400,000 to about 600,000 g / mol. The cationic guar polymer may have a charge density of about 0.2 to about 2.2 meq / g, or about 0.3 to about 2.0 meq / g, or about 0.4 to about 1.8 meq / g, or about 0.5 meq / g to about 1.5 meq / g. <{

[0062] The cationic guar polymer may be formed from a quaternary ammonium compound. The quaternary ammonium compound for forming the cationic guar polymer can conform to General Formula 1,

[0063]

Chemical formula

[0064] [ka] Or, R 6 This is a halohydrin group of general formula 3,

[0065] [ka] In the formula, R 7 is a C1-C3 alkylene, X is chlorine or bromine, and Z is an anion such as Cl-, Br-, I-, or HSO4-.

[0066] Cationic guar polymers can conform to general formula 4,

[0067] [ka] In the formula, R 8 It is guar gum, and R 4 , R 5 , R 6 , and R 7 As defined above, Z is a halogen. Cationic guar polymers can conform to formula 5.

[0068] [ka]

[0069] Suitable cationic guar polymers include cationic guar gum derivatives such as guar hydroxypropyltrimonium chloride. Cationic guar polymers can be guar hydroxypropyltrimonium chloride. Specific examples of guar hydroxypropyltrimonium chloride include the Jaguar® series, commercially available from Solvay, such as Jaguar® C-500. Jaguar® C-500 has a charge density of 0.8 meq / g and a molecular weight of 500,000 g / mol. Another suitable guar hydroxypropyltrimonium chloride is guar hydroxypropyltrimonium chloride, available from Solvay as Jaguar® Optima, which has a charge density of approximately 1.3 meq / g and a molecular weight of approximately 500,000 g / mol. Other suitable guar hydroxypropyltrimonium chlorides include guar hydroxypropyltrimonium chloride, available from Solvay as Jaguar® Excel, which has a charge density of about 0.7 meq / g and a molecular weight of about 1,500,000 g / mol. Other suitable guar hydroxypropyltrimonium chlorides include guar hydroxypropyltrimonium chloride, available from ASI, which has a charge density of about 1.1 meq / g and a molecular weight of about 500,000 g / mol, and guar hydroxypropyltrimonium chloride, available from ASI, which has a charge density of about 1.5 meq / g and a molecular weight of about 500,000 g / mol.

[0070] Other suitable guar hydroxypropyltrimonium chlorides include Hi-Care1000, available from Solvay, with a charge density of approximately 0.7 meq / g and a molecular weight of approximately 600,000 g / mol; N-Hance3269 and N-Hance3270, available from ASI, with a charge density of approximately 0.7 meq / g and a molecular weight of approximately 425,000 g / mol; and N-Hance3196, available from ASI, with a charge density of approximately 0.8 meq / g and a molecular weight of approximately 1,100,000 g / mol. AquaCat CG518 is available from ASI, with a charge density of approximately 0.9 meq / g and a molecular weight of approximately 50,000 g / mol. BF-13, a borate-free guar with a charge density of approximately 1.1 meq / g and a molecular weight of approximately 800,000, and BF-17, a borate-free guar with a charge density of approximately 1.5 meq / g and a molecular weight of approximately 800,000, are both available from ASI.

[0071] The personal care composition of the present invention may contain a galactomannan polymer derivative having a monomer-to-mannan ratio of mannose to galactose greater than 2:1. The galactomannan polymer derivative is selected from the group consisting of cationic galactomannan polymer derivatives and amphoteric galactomannan polymer derivatives having a net positive charge. As used herein, the term "cationic galactomannan" refers to a galactomannan polymer to which a cationic group has been added. The term "amphoteric galactomannan" refers to a galactomannan polymer to which cationic and anionic groups have been added such that the polymer has a net positive charge.

[0072] Galactomannan polymers are found in the endosperm of leguminous plant seeds. Galactomannan polymers are composed of a combination of mannose monomers and galactose monomers. A galactomannan molecule is a linear mannan in which individual galactose units on a specific mannose unit are branched at regular intervals. The mannose units are linked to each other by β(1-4) glycosidic bonds. Galactose branching occurs via α(1-6) bonds. The mannose monomer to galactose monomer ratio varies depending on the plant species and is also influenced by climate. The non-guar galactomannan polymer derivatives of the present invention have a mannose to galactose ratio greater than 2:1 on a monomer-to-monomer basis. A preferred mannose to galactose ratio may be greater than about 3:1, and a mannose to galactose ratio may be greater than about 4:1. Analysis of the mannose to galactose ratio is well known in the art and is typically based on the measurement of galactose content.

[0073] The gums used in the preparation of non-guar-galactomannan polymer derivatives are typically obtained from naturally occurring materials such as plant seeds or beans. Examples of various non-guar-galactomannan polymers include, but are not limited to, tara gum (3 parts mannose / 1 part galactose), locust bean or carob (4 parts mannose / 1 part galactose), and cassia gum (5 parts mannose / 1 part galactose).

[0074] Non-guar galactomannan polymer derivatives may have molecular weights ranging from approximately 1,000 to approximately 10,000,000 and / or approximately 5,000 to approximately 3,000,000.

[0075] The personal care composition of the present invention may also contain a galactomannan polymer derivative having a cationic charge density of about 0.5 meq / g to about 7 meq / g. This galactomannan polymer derivative may have a cationic charge density of about 1 meq / g to about 5 meq / g. The degree of substitution of cationic groups to the galactomannan structure must be sufficient to yield the required cationic charge density.

[0076] Galactomannan polymer derivatives may also be cationic derivatives of non-guar galactomannan polymers, which are obtained by the reaction of a hydroxyl group of a polygalactomannan polymer with a reactive quaternary ammonium compound. Suitable quaternary ammonium compounds for use in forming cationic galactomannan polymer derivatives include those conforming to the general formulas 1 to 5 defined above.

[0077] The cationic non-guargalactomannan polymer derivative formed from the above reagents is given by general formula 6:

[0078] [ka] It is represented by [wherein R is gum]. The cationic galactomannan derivative can be gum hydroxypropyltrimethylammonium chloride, which can be represented more specifically by the following general formula 7.

[0079] [ka]

[0080] Alternatively, the galactomannan polymer derivative may be an amphoteric galactomannan polymer derivative having a net positive charge, which can be obtained when the cationic galactomannan polymer derivative further contains an anionic group.

[0081] Cationic non-guargalactomannan can have a mannose-to-galactose ratio greater than approximately 4:1, molecular weights of approximately 1,000 g / mol to approximately 10,000,000 g / mol, and / or approximately 50,000 g / mol to approximately 1,000,000 g / mol, and / or approximately 100,000 g / mol to approximately 900,000 g / mol, and / or approximately 150,000 g / mol to approximately 400,000 g / mol, and cation charge densities of approximately 1 meq / g to approximately 5 meq / g, and / or 2 meq / g to approximately 4 meq / g, and can be obtained from the plant Cassia.

[0082] Personal care compositions may contain water-soluble cationic modified starch polymers. As used herein, the term “cationically modified starch” refers to starch to which cationic groups have been added before it is broken down into smaller molecular weights, or to starch to which cationic groups have been added after modification to reach a desired molecular weight. The definition of “cationically modified starch” also includes amphoteric modified starch. The term “amphoteric modified starch” refers to starch hydrolysates to which cationic and anionic groups have been added.

[0083] The cationic modified starch polymers disclosed herein have a bound nitrogen percentage of about 0.5% to about 4%.

[0084] The cationic modified starch polymer used in the personal care composition may have a molecular weight of approximately 850,000 g / mol to approximately 1,500,000 g / mol, and / or approximately 900,000 g / mol to approximately 1,500,000 g / mol.

[0085] Personal care compositions may include cationic modified starch polymers having a charge density of approximately 0.2 meq / g to approximately 5 meq / g and / or approximately 0.2 meq / g to approximately 2 meq / g. Chemical modifications to obtain such charge densities include, but are not limited to, the addition of amino groups and / or ammonium groups to starch molecules. Non-limiting examples of these ammonium groups include substituents such as hydroxypropyltrimonium chloride, trimethylhydroxypropylammonium chloride, dimethylstearylhydroxypropylammonium chloride, and dimethyldodecylhydroxypropylammonium chloride. See Solarek, DB, Cationic Starches in Modified Starches: Properties and Uses, Wurzburg, OB, Ed., CRC Press, Inc., Boca Raton, Fla. 1986, pp. 113-125. The cationic groups may be added to the starch before it is broken down to a smaller molecular weight, or they may be added after such modification.

[0086] Cationically modified starch polymers generally have a degree of cationic substitution of approximately 0.2 to approximately 2.5. As used herein, the “degree of substitution” of a cationically modified starch polymer is an average measure of the number of hydroxyl groups on each glucose anhydride unit that is derivatized by substituents. Since each glucose anhydride unit has three possible hydroxyl groups available for substitution, the maximum possible degree of substitution is 3. The degree of substitution is expressed on a molar basis as the number of moles of substituents per mole of glucose anhydride units. The degree of substitution can be determined using proton nuclear magnetic resonance spectroscopy ("sup.1H NMR"), a method well known in the art. Suitable sup.1H NMR methods include those described in "Observation on NMR Spectra of Starches in Dimethyl Sulfoxide, Iodine-Complexing, and Solvating in Water-Dimethyl Sulfoxide," Qin-Ji Peng and Arthur S. Perlin, Carbohydrate Research, 160 (1987), 57-72, and "An Approach to the Structural Analysis of Oligosaccharides by NMR Spectroscopy," J. Howard Bradbury and J. Grant Collins, Carbohydrate Research, 71 (1979), 15-25.

[0087] The starch source before chemical modification can be selected from a variety of sources, including tubers, legumes, cereals, and grains. Non-limiting examples of starches from this source include corn starch, wheat starch, rice starch, waxy corn starch, oat starch, cassava starch, waxy barley, waxy rice starch, glutenous rice starch, amioca, potato starch, tapioca starch, oat starch, sago starch, glutinous rice, or mixtures thereof.

[0088] Cationically modified starch polymers can be selected from decomposed cationic corn starch, cationic tapioca, cationic potato starch, and mixtures thereof. Alternatively, cationically modified starch polymers are cationic corn starch and cationic tapioca.

[0089] Starch may undergo one or more additional modifications before or after being broken down into smaller molecular weight molecules. Examples of these modifications include crosslinking, stabilization reactions, phosphorylation reactions, and hydrolysis. Examples of stabilization reactions include alkylation and esterification.

[0090] Cationically modified starch polymers may be incorporated into compositions in the form of hydrolyzed starch (e.g., acid, enzyme, or alkaline decomposition), oxidized starch (e.g., peroxide, peracid, hypochlorite, alkali, or any other oxidizing agent), physically / mechanically decomposed starch (e.g., by inputting thermomechanical energy into a processing apparatus), or a combination thereof.

[0091] The optimal form of starch is one that readily dissolves in water and forms a substantially clear aqueous solution (approximately 80% transmittance at 600 nm). The transmittance of the composition is measured by ultraviolet / visible (UV / VIS) absorbance spectroscopy, which measures the absorption or transmittance of the sample to UV / VIS light using a Gretag Macbeth Colorimeter Color i 5, according to the relevant instructions. A light wavelength of 600 nm has been shown to be suitable for characterizing the transparency of cosmetic compositions.

[0092] Cationic modified starches suitable for use in personal care compositions are available from known starch suppliers. Nonionic modified starches, which can be further derivatized to cationic modified starches as known in the art, are also suitable for use in personal care compositions. Other suitable modified starch starting materials may be quaternized, as known in the art, to produce cationic modified starch polymers suitable for use in personal care compositions.

[0093] Starch decomposition procedure: A starch slurry can be prepared by mixing granular starch in water. Raise the temperature to approximately 35°C. Next, add an aqueous potassium permanganate solution to a concentration of approximately 50 ppm based on the starch. Raise the pH to approximately 11.5 with sodium hydroxide, stirring the slurry thoroughly to prevent the starch from settling. Next, add a 30% solution of hydrogen peroxide diluted with water until the peroxide concentration based on the starch is approximately 1%. Subsequently, return the pH to approximately 11.5 by adding additional sodium hydroxide. This reaction takes approximately 1 to 20 hours to complete. Next, neutralize the mixture with dilute hydrochloric acid. The decomposed starch is recovered by filtration, then washed and dried.

[0094] Personal care compositions may include cationic copolymers of acrylamide monomers and cationic monomers, which have a charge density of about 1.0 meq / g to about 3.0 meq / g. The cationic copolymer may be a synthetic cationic copolymer of acrylamide monomer and cationic monomer.

[0095] Cationic copolymers may include the following: (i) The acrylamide monomer of formula AM,

[0096] [ka] In the formula, R 9 H or C 1~4 It is alkyl, R10 and R 11 H and C are independent of each other. 1~4 Selected from the group consisting of alkyl, CH2OCH3, CH2OCH2CH(CH3)2, and phenyl, or together C 3~6 It is a cycloalkyl group. (ii) Cationic monomers conforming to the following formula CM:

[0097] [ka] In the formula, k=1, v, v', and v'' are each an integer between 1 and 6, w is zero, or an integer between 1 and 10, X - It is an anion.

[0098] The cationic monomer conforms to formula CM, where k=1, v=3 and w=0, z=1, and X - is Cl - And, it can form the following structure.

[0099] [ka] The above structure is sometimes called a diquat. Alternatively, a cationic monomer can be fitted to formula CM, where v and v'' are 3, v'=1, w=1, y=1, and X - is Cl - For example, the following:

[0100] [ka]

[0101] The structure described above is sometimes referred to as a triquat.

[0102] Suitable acrylamide monomers include, but are not limited to, acrylamide or methacrylamide.

[0103] The cationic copolymer (b) may be AM:TRIQUAT, which is a copolymer of acrylamide and 1,3-propanediaminium, N-[2-[[[dimethyl[3-[(2-methyl-1-oxo-2-propenyl)amino]propyl]ammonio]acetyl]amino]ethyl]2-hydroxy-N,N,N',N',N'-pentamethyl-,trichloride. AM:TRIQUAT is also known as polyquaternium 76 (PQ76). AM:TRIQUAT may have a charge density of 1.6 meq / g and a molecular weight of 1,100,000 g / mol.

[0104] Furthermore, the cationic copolymer may be a copolymer of an acrylamide monomer and a cationic monomer, and the cationic monomer is selected from the group consisting of dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, ditertio-butylaminoethyl (meth)acrylate, dimethylaminomethyl (meth)acrylamide, dimethylaminopropyl (meth)acrylamide; ethyleneimine, vinylamine, 2-vinylpyridine, 4-vinylpyridine; trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulfate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyldimethylammonium ethyl acrylate chloride, trimethylammonium ethyl (meth)acrylamide chloride, trimethylammonium propyl (meth)acrylamide chloride, vinylbenzyltrimethylammonium chloride, diallyldimethylammonium chloride, and mixtures thereof.

[0105] The cationic copolymer may contain cationic monomers selected from the group consisting of cationic monomers including trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulfate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyldimethylammonium ethyl acrylate chloride, trimethylammonium ethyl (meth)acrylamide chloride, trimethylammonium propyl (meth)acrylamide chloride, vinylbenzyltrimethylammonium chloride, and mixtures thereof.

[0106] The cationic copolymer may be water-soluble. The cationic copolymer is formed from (1) a copolymer of (meth)acrylamide and a cationic monomer mainly composed of (meth)acrylamide, and / or a cationic monomer that is stable against hydrolysis, and (2) a copolymer of (meth)acrylamide, a monomer mainly composed of a cationic (meth)acrylic acid ester, and a monomer mainly composed of (meth)acrylamide, and / or a cationic monomer that is stable against hydrolysis. The monomer mainly composed of a cationic (meth)acrylic acid ester may be a cationic ester of (meth)acrylic acid containing a quaternary nitrogen atom. The cationic ester of (meth)acrylic acid containing a quaternary nitrogen atom may be a dialkylaminoalkyl (meth)acrylate that has been quaternized at C1-C3 in the alkyl group and alkylene group. Suitable cationized esters of (meth)acrylic acid containing a quaternary nitrogen atom can be selected from the group consisting of ammonium salts of dimethylaminomethyl (meth)acrylate, dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, diethylaminomethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, and diethylaminopropyl (meth)acrylate, all of which are quaternized with methyl chloride. The cationized ester of (meth)acrylic acid containing a quaternary nitrogen atom may be dimethylaminoethyl acrylate (ADAME-Quat), which is quaternized with an alkyl halide, or with methyl chloride, benzyl chloride, or dimethyl sulfate. When the cationic monomer is mainly (meth)acrylamide, it may be dialkylaminoalkyl (meth)acrylamide quaternized at C1-C3 in the alkyl and alkylene groups, or dimethylaminopropyl acrylamide quaternized with an alkyl halide, or with methyl chloride, benzyl chloride, or dimethyl sulfate.

[0107] Suitable cationic monomers mainly composed of (meth)acrylamide include dialkylaminoalkyl(meth)acrylamides that have been quaternized at the C1-C3 level within the alkyl and alkylene groups. Cationic monomers mainly composed of (meth)acrylamide may be dimethylaminopropylacrylamides that have been quaternized with alkyl halides, particularly methyl chloride, benzyl chloride, or dimethyl sulfate.

[0108] Cationic monomers can be cationic monomers that are stable against hydrolysis. Besides dialkylaminoalkyl(meth)acrylamide, cationic monomers that are stable against hydrolysis can be any monomer that can be considered stable against the OECD hydrolysis test. Cationic monomers can be stable against hydrolysis, and cationic monomers that are stable against hydrolysis can be selected from the group consisting of diallyldimethylammonium chloride and water-soluble cationic styrene derivatives.

[0109] The cationic copolymer may be a terpolymer of acrylamide, 2-dimethylammonium ethyl (meth)acrylate (ADAME-Q) quaternized with methyl chloride, and 3-dimethylammonium propyl (meth)acrylamide (DIMAPA-Q) quaternized with methyl chloride. The cationic copolymer can be formed from acrylamide and acrylamidopropyltrimethylammonium chloride, which has a charge density of about 1.0 meq / g to about 3.0 meq / g.

[0110] Cationic copolymers can have charge densities of approximately 1.1 meq / g to approximately 2.5 meq / g, or approximately 1.1 meq / g to approximately 2.3 meq / g, or approximately 1.2 meq / g to approximately 2.2 meq / g, or approximately 1.2 meq / g to approximately 2.1 meq / g, or approximately 1.3 meq / g to approximately 2.0 meq / g, or approximately 1.3 meq / g to approximately 1.9 meq / g.

[0111] Cationic copolymers can have molecular weights of approximately 100,000 g / mol to approximately 1,500,000 g / mol, or approximately 300,000 g / mol to approximately 1,500,000 g / mol, or approximately 500,000 g / mol to approximately 1,500,000 g / mol, or approximately 700,000 g / mol to approximately 1,000,000 g / mol, or approximately 900,000 g / mol to approximately 1,200,000 g / mol.

[0112] The cationic copolymer may be trimethylammoniopropylmethacrylamide chloride-N-acrylamide copolymer, also known as AM:MAPTAC. AM:MAPTAC may have a charge density of about 1.3 meq / g and a molecular weight of about 1,100,000 g / mol. The cationic copolymer may also be AM:ATPAC. AM:ATPAC may have a charge density of about 1.8 meq / g and a molecular weight of 1,100,000 g / mol.

[0113] (a) Cationic synthetic polymers The personal care composition may include a cationic synthetic polymer that can be formed from the following: i) One or more cationic monomer units, and optionally, ii) One or more monomer units having a negative charge, and / or iii) It may be a synthetic polymer formed from nonionic monomers. Here, the subsequent charge of the copolymer is positive. The ratio of these three types of monomers is represented by "m", "p", and "q", where "m" is the number of cationic monomers, "p" is the number of negatively charged monomers, and "q" is the number of nonionic monomers. The cationic polymer may be a water-soluble or dispersible, non-crosslinked synthetic cationic polymer having the following structure:

[0114] [ka] In the formula, A may be one or more of the following cationic moieties:

[0115] [ka] In the formula, @ is an amide, alkylamide, ester, ether, alkyl, or alkylaryl. In the formula, Y is a C1-C22 alkyl, alkoxy, alkylidene, alkyl, or aryloxy. In the formula, ψ is a C1-C22 alkyl, alkyloxy, alkylaryl, or alkylaryloxy. In the formula, Z is a C1-C22 alkyl, alkyloxy, aryl, or aryloxy. In the formula, R1 is H, a linear or branched alkyl group of C1-C4, In the formula, s is 0 or 1, and n is 0 or ≥ 1. In the formula, T and R7 are C1-C22 alkyl groups. In the formula, X- is a halogen, a hydroxide, an alkoxide, a sulfate, or an alkyl sulfate.

[0116] In the above structure, a negatively charged monomer is defined by R2' being a linear or branched alkyl group of H, C1-C4, and R3 being as follows:

[0117] [ka] In the formula, D is O, N, or S. In the formula, Q is either NH2 or O. In the formula, u is 1 to 6. In the formula, t is between 0 and 1. In the formula, J is an oxygenated functional group containing the following elements P, S, and C.

[0118] In the above structure, the nonionic monomer is defined by R2'' being a linear or branched alkyl group of H, C1-C4, and R6 being a linear or branched alkyl group, alkylaryl group, aryloxy group, alkyloxy group, or alkylaryloxy group, and β is defined as follows:

[0119] [ka] In the formula, G' and G'' are independently O, S, or NH, and L is either 0 or 1.

[0120] Examples of cationic monomers include aminoalkyl (meth)acrylates, (meth)aminoalkyl (meth)acrylamides; monomers containing at least one secondary, tertiary, or quaternary amine functional group, or a heterocyclic group containing a nitrogen atom, vinylamine, or ethyleneimine; diallyldialkylammonium salts; mixtures thereof, salts thereof, and macromonomers derived therefrom.

[0121] Further examples of cationic monomers include dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, ditertio-butylaminoethyl (meth)acrylate, dimethylaminomethyl (meth)acrylamide, dimethylaminopropyl (meth)acrylamide, ethyleneimine, vinylamine, 2-vinylpyridine, 4-vinylpyridine, trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulfate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyldimethylammonium ethyl acrylate chloride, trimethylammonium ethyl (meth)acrylamide chloride, trimethylammonium propyl (meth)acrylamide chloride, vinylbenzyltrimethylammonium chloride, and diallyldimethylammonium chloride.

[0122] Suitable cationic monomers include those of formula -NR3+ Examples include quaternary ammonium groups containing anions (counterions), where R is the same or different and represents a hydrogen atom, an alkyl group containing 1 to 10 carbon atoms, or a benzyl group, optionally having a hydroxyl group. Examples of anions include halides such as chlorides and bromides, sulfates, hydrosulfates, alkyl sulfates (e.g., containing 1 to 6 carbon atoms), phosphates, citrates, formates, and acetates.

[0123] Suitable cationic monomers include trimethylammonium ethyl (meth)acrylate chloride, trimethylammonium ethyl (meth)acrylate methyl sulfate, dimethylammonium ethyl (meth)acrylate benzyl chloride, 4-benzoylbenzyldimethylammonium ethyl acrylate chloride, trimethylammonium ethyl (meth)acrylamide chloride, trimethylammonium propyl (meth)acrylamide chloride, and vinylbenzyltrimethylammonium chloride.

[0124] Further preferred cationic monomers include trimethylammonium propyl (meth)acrylamide chloride.

[0125] Examples of negatively charged monomers include α-ethylenically unsaturated monomers containing a phosphate or phosphonate group, α-ethylenically unsaturated monocarboxylic acids, monoalkyl esters of α-ethylenically unsaturated dicarboxylic acids, monoalkylamides of α-ethylenically unsaturated dicarboxylic acids, α-ethylenically unsaturated compounds containing a sulfonic acid group, and salts of α-ethylenically unsaturated compounds containing a sulfonic acid group.

[0126] Suitable monomers having a negative charge include acrylic acid, methacrylic acid, vinyl sulfonic acid, salts of vinyl sulfonic acid, vinylbenzenesulfonic acid, salts of vinylbenzenesulfonic acid, α-acrylamidomethylpropanesulfonic acid, salts of α-acrylamidomethylpropanesulfonic acid, 2-sulfoethyl methacrylate, salts of 2-sulfoethyl methacrylate, acrylamide-2-methylpropanesulfonic acid (AMPS), salts of acrylamide-2-methylpropanesulfonic acid, and styrenesulfonate (SS).

[0127] Examples of nonionic monomers include vinyl acetate, amides of α-ethylenically unsaturated carboxylic acids, esters of α-ethylenically unsaturated monocarboxylic acids with hydrogenated or fluorinated alcohols, polyethylene oxide (meth)acrylate (i.e., polyethoxylated (meth)acrylic acid), monoalkyl esters of α-ethylenically unsaturated dicarboxylic acids, monoalkylamides of α-ethylenically unsaturated dicarboxylic acids, vinyl nitriles, vinylamine amides, vinyl alcohols, vinylpyrrolidone, and vinyl aromatic compounds.

[0128] Suitable nonionic monomers include styrene, acrylamide, methacrylamide, acrylonitrile, methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, n-butyl methacrylate, 2-ethyl-hexyl acrylate, 2-ethyl-hexyl methacrylate, 2-hydroxyethyl acrylate, and 2-hydroxyethyl methacrylate.

[0129] As long as the polymer maintains solubility or dispersibility in water, the personal care composition, or the coacervate phase of the personal care composition, and as long as the counterion is physically and chemically compatible with the essential components of the personal care composition, or otherwise does not excessively impair the performance, stability, or aesthetics of the product, the anionic counterion (X-) associated with the synthetic cationic polymer may be any known counterion. Non-limiting examples of such counterions include halides (e.g., chlorine, fluorine, bromine, iodine), sulfates, and methyl sulfates.

[0130] The cationic polymers described herein may help provide a substitute hydrophobic F layer to damaged hair, particularly chemically treated hair. This microscopically thin F layer helps retain moisture and prevent further damage while providing natural weather resistance. Chemical treatment damages the hair cuticle, causing the protective F layer to peel off. As the F layer peels off, the hair becomes more hydrophilic. It has been found that applying lyotropic liquid crystal to chemically treated hair makes it even more hydrophobic, resulting in an appearance and feel similar to untreated hair. While not bound by any particular theory, it is believed that lyotropic liquid crystal complexes form a hydrophobic layer or film, coating and protecting the hair fibers in a similar way to how the natural F layer protects hair. The hydrophobic layer restores the hair to a healthier state overall, similar to untreated hair. Lyotropic liquid crystals are formed by adding the synthetic cationic polymers described herein to the anionic cleansing surfactant components of personal care compositions. The charge density of the synthetic cationic polymers is relatively high. It should be noted that some synthetic polymers with relatively high cationic charge densities do not form lyotropic liquid crystals, mainly due to their unusually linear charge densities. Such synthetic cationic polymers are described in International Publication No. 94 / 06403 (Reich et al.). The synthetic polymers described herein can be incorporated into stable personal care compositions that improve the conditioning performance of damaged hair.

[0131] Cationic synthetic polymers capable of forming lyotropic liquid crystals may have cationic charge densities of about 2 meq / gm to about 7 meq / gm, and / or about 3 meq / gm to about 7 meq / gm, and / or about 4 meq / gm to about 7 meq / gm. The cationic charge density may also be about 6.2 meq / gm. These polymers also have molecular weights of about 1,000 to about 5,000,000, and / or about 10,000 to about 1,500,000, and / or about 100,000 to about 1,500,000.

[0132] Cationic synthetic polymers that provide conditioning and enhanced deposition of beneficial agents but do not necessarily form lyotropic liquid crystals may have cation charge densities of about 0.7 meq / gm to about 7 meq / gm, and / or about 0.8 meq / gm to about 5 meq / gm, and / or about 1.0 meq / gm to about 3 meq / gm. These polymers also have molecular weights of about 1,000 to about 1,500,000, about 10,000 to about 1,500,000, and about 100,000 to about 1,500,000.

[0133] A preferred cationic cellulose polymer is a salt of hydroxyethyl cellulose reacted with a trimethylammonium substituted epoxide, referred to in the CTFA as Polyquaternium 10, and available from Dow / Amerchol Corp. (Edison, NJ, USA) in the Polymer LR, JR, and KG series polymers. Non-limiting examples include JR-400, JR-125, JR-30M, KG-30M, JP, LR-400, and mixtures thereof. Another preferred type of cationic cellulose is a polymeric quaternary ammonium salt of hydroxyethyl cellulose reacted with a lauryldimethylammonium substituted epoxide, referred to in the CTFA as Polyquaternium 24. These materials are available from Dow / Amerchol Corp. under the trade name Polymer LM-200. Other preferred types of cationic cellulose include polymeric quaternary ammonium salts of hydroxyethyl cellulose obtained by reacting them with lauryldimethylammonium substituted epoxides and trimethylammonium substituted epoxides, which are referred to in the CTFA as polyquaternium-67. These materials are available from Dow / Amerchol Corp. under the trade names SoftCAT Polymer SL-5, SoftCAT Polymer SL-30, Polymer SL-60, Polymer SL-100, Polymer SK-L, Polymer SK-M, Polymer SK-MH, and Polymer SK-H.

[0134] Suitable cationic cellulose polymers may have a cationic charge density of about 0.5 meq / gm to about 2.5 meq / gm, and / or about 0.6 meq / gm to about 2.2 meq / gm, and / or about 0.6 meq / gm to about 2.0 meq / gm. Furthermore, the cationic charge density may be about 1.9 meq / gm. This polymer also has a molecular weight of about 200,000 to about 3,000,000, and / or about 300,000 to about 2,200,000, and / or about 1,000,000 to about 2,200,000, and / or about 300,000 to about 1,500,000. Cationic cellulose polymers may have a cation charge density of approximately 1.7 to approximately 2.1 meq / gm and a molecular weight of approximately 1,000,000 to approximately 2,000,000.

[0135] The concentration of the cationic polymer is in the range of about 0.01% to about 5% by weight, about 0.08% to about 3% by weight, about 0.1% to about 2% by weight, and / or about 0.2% to about 1% by weight of the personal care composition.

[0136] Thickening polymer The personal care composition may contain a thickening polymer to increase the viscosity of the composition. A suitable thickening polymer can be used. The personal care composition may contain about 0.25% to about 10% of the thickening polymer, about 0.5% to about 8% of the thickening polymer, about 1.0% to about 5% of the thickening polymer, and about 1% to about 4% of the thickening polymer. The thickening polymer modifier may be a polyacrylate or polyacrylamide thickener. The thickening polymer may be an anionic thickening polymer.

[0137] The personal care composition may contain a thickening polymer that is a homopolymer based on acrylic acid, methacrylic acid, or other related derivatives, and non-limiting examples include polyacrylate, polymethacrylate, polyethyl acrylate, and polyacrylamide.

[0138] The thickening polymer may be an alkali-expandable and hydrophobic-modified alkali-expandable acrylic copolymer or methacrylate copolymer, and non-limiting examples include acrylic acid / acrylonitrogen copolymer, acrylate / steareth-20 itaconate copolymer, acrylate / ceteth-20 itaconate copolymer, acrylate / aminoacrylate / C10-30 alkylPEG-20 itaconate copolymer, acrylate / aminoacrylate copolymer, acrylate / steareth-20 methacrylate copolymer, and Examples include acrylate / beheneth-25 methacrylate copolymer, acrylate / steareth-20 methacrylate crosspolymer, acrylate / beheneth-25 methacrylate / HEMA crosspolymer, acrylate / vinyl neodecanoate crosspolymer, acrylate / vinyl isodecanoate crosspolymer, acrylate / palmes-25 acrylate copolymer, acrylic acid / acrylamidomethylpropanesulfonic acid copolymer, and acrylate / C10-C30 alkyl acrylate crosspolymer.

[0139] The thickening polymer may be a soluble crosslinked acrylic polymer, and a non-limiting example is a carbomer.

[0140] The thickening polymer may be an associative polymer thickener, and non-limiting examples include hydrophobic modified alkali-swelling emulsions, and non-limiting examples include hydrophobic modified polypolyacrylates; hydrophobic modified polyacrylic acids, and hydrophobic modified polyacrylamides; hydrophobic modified polyethers, and these materials may have hydrophobic substances that can be selected from cetyl, stearyl, oleyl, and combinations thereof.

[0141] The thickening polymer can be used in combination with polyvinylpyrrolidone, crosslinked polyvinylpyrrolidone, and derivatives. The thickening polymer may also be combined with polyvinyl alcohol and its derivatives. Furthermore, the thickening polymer may be combined with polyethyleneimine and its derivatives.

[0142] The thickening polymer may be combined with alginate-based materials, and non-limiting examples include sodium alginate and propylene glycol alginate.

[0143] The thickening polymer can be used in combination with polyurethane polymers, and non-limiting examples include hydrophobic modified alkoxylated urethane polymers, and non-limiting examples include PEG-150 / decyl alcohol / SMDI copolymer, PEG-150 / stearyl alcohol / SMDI copolymer, and polyurethane-39.

[0144] The thickening polymer may be combined with an associative polymer thickener, and non-limiting examples include hydrophobic modified cellulose derivatives and hydrophilic portions of repeating ethylene oxide groups with repeating units of about 10 to about 300, about 30 to about 200, and about 40 to about 150. Non-limiting examples of this category include PEG-120-methyl glucose dioleate, PEG-(40 or 60) sorbitan tetraoleate, PEG-150 pentaerythrityl tetrastearate, PEG-55 propylene glycol oleate, and PEG-150 distearate.

[0145] The thickening polymer may be combined with cellulose and its derivatives, and non-limiting examples include microcrystalline cellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, ethylcellulose; nitrocellulose; cellulose sulfate; cellulose powder; and hydrophobic modified cellulose.

[0146] The thickening polymer may be combined with guar and guar derivatives, and non-limiting examples include hydroxypropyl guar and hydroxypropyl guar hydroxypropyltrimonium chloride.

[0147] The thickening polymer may be combined with polyethylene oxide, polypropylene oxide, and POE-PPO copolymer.

[0148] The thickening polymer may be combined with a polyalkylene glycol characterized by the following general formula:

[0149] [ka] In the formula, R is hydrogen, methyl, or a mixture thereof, and is more specifically hydrogen, and n is an integer between 2,000 and 180,000 on average, or between 7,000 and 90,000, or between 7,000 and 45,000. Non-limiting examples of this category include PEG-7M, PEG-14M, PEG-23M, PEG-25M, PEG-45M, PEG-90M, or PEG-100M.

[0150] The thickening polymer may be combined with silica, and non-limiting examples include fumed silica, precipitated silica, and silicone surface-treated silica.

[0151] The thickening polymer may be combined with a water-swellable clay, and non-limiting examples include laponite, bentonite, montmorillonite, smectite, and hectonite.

[0152] The thickening polymer may be combined with rubber, and non-limiting examples include xanthan gum, guar gum, hydroxyprolyl guar gum, gum arabic, tragacanth, galactan, carob gum, karaya gum, and locust bean gum.

[0153] The thickening polymer may be combined with dibenzylidenesorbitol, carrageenan, pectin, agar, quince seed (Cydonia oblonga Mill), starch (obtained from rice, corn, potato, wheat, etc.), starch derivatives (e.g., carboxymethyl starch, methylhydroxypropyl starch), algal extracts, dextran, succinoglucan, and prelan.

[0154] Non-limiting examples of thickening polymers include acrylamide / ammonium acrylate copolymer (and) polyisobutene (and) polysorbate 20; acrylamide / acryloyldimethyltaurate sodium salt copolymer / isohexadecane / polysorbate 80; acryloyldimethyltaurate ammonium salt / VP copolymer; sodium acrylate / acryloyldimethyltaurate sodium salt copolymer; acrylate copolymer; acrylate crosspolymer-4; acrylate crosspolymer-3; acrylate / beheneth-25 methacrylate copolymer; acrylate / C10-C30 alkyl acrylate crosspolymer; acrylate / steareth-20 itaconate copolymer; ammonium polyacrylate / The method according to any one of claims 1 to 3, selected from the group consisting of isohexadecane / PEG-40 castor oil; carbomer, sodium carbomer, cross-linked polyvinylpyrrolidone (PVP), polyacrylamide / C13-14 isoparaffin / laureth-7, polyacrylate 13 / polyisobutene / polysorbate 20, polyacrylate crosspolymer-6, polyamide-3, polyquaternium-37 (and) hydrogenated polydecene (and) trideceth-6, acrylamide / sodium acryloyldimethyltaurate / acrylic acid copolymer, sodium acrylate / acryloyldimethyltaurate / dimethylacrylamide crosspolymer (and) isohexadecane (and) polysorbate 60, and sodium polyacrylate.Examples of commercially available thickening polymers include ACULYN® 28, ACULYN® 33, ACULYN® 88, ACULYN® 22, ACULYN® Excel, Carbopol® AquaSF-1, Carbopol® ETD2020, Carbopol® Ultrez20, Carbopol® Ultrez21, Carbopol® Ultrez10, and Carbopol® Ultrez3. Examples include 0, Carbopol® 1342, Carbopol® AquaSF-2 polymer, Sepigel® 305, Simulgel® 600, SepimaxZen, Carbopol® SMART1000, Rheocare® TTA, Rheomer® SC-Plus, STRUCTURE® PLUS, Aristoflex® AVC, Stabylen 30, and combinations thereof.

[0155] Gel Network In the present invention, a gel network may be present. The gel network components of the present invention include at least one aliphatic amphiphilic substance. As used herein, "aliphatic amphiphilic substance" means alkyl, alkenyl (containing up to three double bonds), alkyl aromatic, or C 12 ~C 70 This refers to a compound having a hydrophobic terminal group defined as a branched alkyl group of length 1, and a hydrophilic terminal group that does not make the compound water-soluble, and the compound also has a net neutral charge at the pH of the personal care composition.

[0156] The personal care composition of the present invention contains an aliphatic amphiphilic substance as part of a pre-formed dispersed gel network phase in amounts of about 0.05% to about 14% by weight, about 0.5% to about 10% by weight, and about 1% to about 8% by weight of the personal care composition.

[0157] According to the present invention, a suitable aliphatic amphiphilic substance, or a suitable mixture of two or more aliphatic amphiphilic substances, has a melting point of at least about 27°C. When used herein, the melting point is as defined in USPharmacopeia, USP-NF General Chapter <741> The melting point can be measured by the standard melting point method described in "Melting range or temperature". The melting point of a mixture of two or more materials is measured by mixing the two or more materials at a temperature higher than the individual melting points of the materials, and then cooling the mixture. If the resulting composite is a homogeneous solid below about 27°C, the mixture has a melting point suitable for use in the present invention. A mixture of two or more aliphatic amphiphilic materials, including at least one aliphatic amphiphilic material whose individual melting point is below about 27°C, is also suitable for use in the present invention, as long as the combined melting point of the mixture is at least about 27°C.

[0158] Suitable aliphatic amphiphilic substances of the present invention include fatty alcohols, alkoxylated fatty alcohols, fatty phenols, alkoxylated fatty phenols, fatty amides, alkoxylated fatty amides, fatty amines, fatty alkylamides, alkylamines, fatty alkoxylated amines, fatty carbamates, fatty amine oxides, fatty acids, alkoxylated fatty acids, fatty diesters, fatty sorbitan esters, fatty sugar esters, methyl glucoside esters, fatty glycol esters, mono, di, and triglycerides, polyglycerin fatty esters, alkylglyceryl ethers, propylene glycol fatty acid esters, cholesterol, ceramides, fatty silicone waxes, fatty glucose amides, and phospholipids, as well as mixtures thereof.

[0159] Personal care compositions may contain fatty alcohol gel networks. These gel networks are formed by combining aliphatic alcohols and surfactants in ratios of approximately 1:1 to approximately 40:1, approximately 2:1 to approximately 20:1, and / or approximately 3:1 to approximately 10:1. The formation of the gel network involves heating an aqueous dispersion of aliphatic alcohol together with the surfactant to a temperature above the melting point of the aliphatic alcohol. During this mixing process, the aliphatic alcohol melts and partitions the surfactant into aliphatic alcohol droplets. The surfactant carries water into the aliphatic alcohol along with the surfactant. This transforms the isotropic aliphatic alcohol droplets into liquid crystal phase droplets. When this mixture is cooled to a temperature below the chain melting point, the liquid crystal phase is converted into a solid crystalline gel network. The gel networks contribute to the stabilizing effect of cosmetic creams and hair conditioners. In addition, they provide a tuned texture effect to hair conditioners.

[0160] Aliphatic alcohols may be present in the aliphatic alcohol gel network at concentrations ranging from approximately 0.05% to approximately 14% by weight. For example, aliphatic alcohols may be present in amounts ranging from approximately 1% to approximately 10% by weight, and / or approximately 6% to approximately 8% by weight.

[0161] Aliphatic alcohols useful herein include those having about 10 to about 40 carbon atoms, about 12 to about 22 carbon atoms, about 16 to about 22 carbon atoms, and / or about 16 to about 18 carbon atoms. These aliphatic alcohols may be linear or branched alcohols, and may be saturated or unsaturated. Non-limiting examples of aliphatic alcohols include cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof. Mixtures of cetyl alcohol and stearyl alcohol in a ratio of about 20:80 to about 80:20 are preferred.

[0162] Preparation of the gel network: Fill a container with water and heat the water to approximately 74°C. Add cetyl alcohol, stearyl alcohol, and SLES surfactant to the heated water. After assembly, pass the resulting mixture through a heat exchanger and cool the mixture to approximately 35°C. Upon cooling, the aliphatic alcohol and surfactant crystallize, forming a crystalline gel network. Table 1 provides the components and their respective amounts for exemplary gel network compositions.

[0163] [Table 1]

[0164] 1. Water-miscible solvent Useful carriers in personal care compositions include water, as well as aqueous solutions of lower alkyl alcohols, polyhydric alcohols, ketones having 3 to 4 carbon atoms, C1 to C6 esters of C1 to C6 alcohols, sulfoxides, amides, carbonate esters, ethoxylated and propoxylated C1 to C10 alcohols, lactones, pyrrolidones, and mixtures thereof. Non-limiting examples of lower alkyl alcohols are monohydric alcohols having 1 to 6 carbon atoms, such as ethanol and isopropanol. Non-limiting examples of polyhydric alcohols useful herein include propylene glycol, dipropylene glycol, butylene glycol, hexylene glycol, glycerin, propanediol, and mixtures thereof.

[0165] The personal care composition may contain a hydrotrope / viscosity modifier which is an alkali metal or ammonium salt of a lower alkylbenzene sulfonic acid, such as sodium xylene sulfonate, sodium cumene sulfonate, or sodium toluene sulfonate.

[0166] Personal care compositions may include silicone / PEG-8 silicone / PEG-9 silicone / PEG-n silicone / silicone ether (where n is another integer), and non-limiting examples include PEG8-dimethicone A208MW855 and PEG8-dimethicone D208MW2706.

[0167] Healthy active ingredients for scalp, facial / body skin, and hair. Healthy active substances for the scalp, facial / body skin, and hair include, for example, azoles such as crimbazole, ketoconazole, itraconazole, econazole, and erbiol; hydroxypyridones such as octopirox (piroctone olamine), cyclopirox, rilopirox, and MEA-hydroxyoctyloxypyridinone; strobilurins such as azoxystrobin; metal chelating agents such as 1,10-phenanthroline; polyvalent metal salts of pyrithione (non-exclusive examples include zinc pyrithione (ZPT) and copper pyrithione); sulfur; selenium sulfide; menthol; or menthyl lactate.

[0168] In the present invention, the azole health active substance for scalp, facial / body skin, and hair may be an imidazole selected from the group consisting of benzimidazole, benzothiazole, bifonazole, butaconazole nitrate, crimbazole, clotrimazole, croconazole, everconazole, econazole, erbiol, fenticonazole, fluconazole, fluthymazole, isoconazole, ketoconazole, lanoconazole, metronidazole, miconazole, neticonazole, omoconazole, oxiconazole nitrate, sertaconazole, sarconazole nitrate, thioconazole, thiazole, and mixtures thereof, or the azole health active substance for scalp may be a triazole selected from the group consisting of terconazole, itraconazole, and mixtures thereof. The azole health active agent for scalp, facial / body skin, and hair may also be ketoconazole. Furthermore, ketoconazole may be the sole active ingredient for scalp, facial / body skin, and hair health.

[0169] Soluble scalp, facial / body skin, and hair health active substances may be present in amounts of approximately 0.01% to 10%, approximately 0.1% to 9%, approximately 0.25% to 8%, and approximately 0.5% to 6%. Since soluble scalp, facial / body skin, and hair health active substances may be soluble in surfactants, they may be surfactant-soluble scalp, facial / body skin, and hair health active substances.

[0170] Health products for the scalp, face / body skin, and hair. In the present invention, by adding one or more scalp, facial / body skin, and hair health agents, effects on the scalp, facial / body skin, and hair can be provided in addition to the antifungal / antidandruff effect provided by surfactant-soluble scalp, facial / body skin, and hair health active substances. This group of materials is variable and provides a wide range of effects including humidification, barrier improvement, antifungal, antibacterial, antioxidant, anti-itch, and sensory stimulation. Such scalp, facial / body skin, and hair health agents include vitamins E and F, salicylic acid, niacinamide, caffeine, panthenol, zinc oxide, zinc carbonate, basic zinc carbonate, glycol, glycolic acid, PCA, PEG, erythritol, glycerin, triclosan, lactate, hyaluronic acid, allantoin and other ureas, betaine, sorbitol, glutamate, xylitol, menthol, menthyl lactate, isocyclomone, benzyl alcohol, and compounds containing the following structures:

[0171] [ka] (R1 is selected from H, alkyl, aminoalkyl, and alkoxy, Q=H2, O, -OR1, -N(R1)2, -OPO(OR1) x , -PO(OR1) x , -P(OR1) x (In the formula, x=1~2), V = NR1, O, -OPO(OR1) x , -PO(OR1) x , -P(OR1) x (In the formula, x=1~2), W=H2, O, When n=0, X and Y are selected independently from H, aryl, and naphthyl. If n≧1, X and Y are aliphatic CH2 or aromatic CH, and Z is selected from aliphatic CH2, aromatic CH, or heteroatoms. A = lower alkoxy, lower alkylthio, aryl, substituted aryl, or condensed aryl. * (At the position of the mark, the stereochemistry is variable.) This also includes, but is not limited to, natural extracts / oils containing peppermint, spearmint, argan, jojoba, and aloe.

[0172] D. Optional ingredients In the present invention, the personal care composition may further contain one or more optional components, including beneficial agents. Suitable beneficial agents include, but are not limited to, conditioning agents, cationic polymers, silicone emulsions, anti-dandruff agents, gel networks, chelating agents, and natural oils such as sunflower oil or castor oil. Further suitable optional components include, but are not limited to, fragrances, fragrance microcapsules, colorants, particles, antibacterial agents, antifoaming agents (foam busters), antistatic agents, rheological modifiers and thickeners, suspension materials and structuring agents, pH adjusters and buffers, preservatives, pearlescent agents, solvents, diluents, antioxidants, vitamins, and sensory stimulants such as menthol and methyl lactate, as well as combinations thereof. The composition may contain about 0.5% to about 7% fragrance.

[0173] Such optional components must be physically and chemically compatible with the components of the composition and must not otherwise excessively impair the stability, aesthetics, or performance of the product. The CTFA Cosmetic Ingredient Handbook, Tenth Edition (published by the Cosmetic, Toiletry, and Fragrance Association, Inc. (Washington, DC)) (2004) (hereinafter referred to as "CTFA") describes a variety of non-limiting materials that may be added to the compositions herein.

[0174] 1. Conditioning agent The conditioning agent of the personal care composition may be a silicone conditioning agent. The silicone conditioning agent may include volatile silicones, non-volatile silicones, or a combination thereof. The concentration of the silicone conditioning agent is typically in the range of about 0.01% to about 10% by weight, about 0.1% to about 8% by weight, about 0.1% to about 5% by weight, and / or about 0.2% to about 3% by weight of the composition. Non-limiting examples of suitable silicone conditioning agents and optional suspending agents for silicones are described in U.S. Reissue Patent No. 34,584, U.S. Patent No. 5,104,646, and U.S. Patent No. 5,106,609, which are incorporated herein by reference.

[0175] Silicone conditioning agents for use in the compositions of the present invention may have viscosities of about 20 to about 2,000,000 centistokes ("centistokes, csk"), about 1,000 to about 1,800,000 csk, about 10,000 to about 1,500,000 csk, and / or about 20,000 to about 1,500,000 csk when measured at 25°C.

[0176] Dispersed silicone conditioning agent particles typically have a volume-average particle size ranging from about 0.01 micrometers to about 60 micrometers. When smaller particles are applied to hair, the volume-average particle size typically ranges from about 0.01 micrometers to about 4 micrometers, about 0.01 micrometers to about 2 micrometers, and about 0.01 micrometers to about 0.5 micrometers.

[0177] Further information on silicones, including sections on silicone fluids, rubbers, and resins, as well as the manufacture of silicones, can be found in the Encyclopedia of Polymer Science and Engineering, vol. 15, 2d ed., pp. 204-308, John Wiley & Sons, Inc. (1989), which is incorporated herein by reference.

[0178] Suitable silicone emulsions for use in the present invention include, but are not limited to, emulsions of insoluble polysiloxanes. These can be prepared by emulsion polymerization as described in U.S. Patent No. 6,316,541, or U.S. Patent No. 4,476,282, or U.S. Patent Application Publication No. 2007 / 0276087, or they can be emulsified after polymerization is complete by various emulsification methods as described in U.S. Patent No. 9,255,184(B2), or U.S. Patent No. 7,683,119, or Emulsions and Emulsion Stability, edited by Johan Sjoblom, CRC Press, 2005. Based on these references, a non-limiting list of suitable emulsifiers and emulsifier blends can be considered, based on the functionality of the silicone used, the emulsification method, and the desired emulsion particle size. Therefore, suitable insoluble polysiloxanes include polysiloxanes such as alpha,omegahydroxy-terminated polysiloxanes or alpha,omegaalkoxy-terminated polysiloxanes having an internal phase viscosity of about 5 csk to about 500,000 csk. For example, insoluble polysiloxanes may have an internal phase viscosity of less than 400,000 csk, less than 200,000 csk, or about 10,000 csk to about 180,000 csk. Insoluble polysiloxanes may have an average particle size in the range of about 10 nm to about 10 microns. The average particle size may be, for example, in the range of about 15 nm to about 5 micrometers, about 20 nm to about 1 micrometer, about 25 nm to about 550 nm, or about 1 to 10 micrometers. The concentration of dispersed silicone in the emulsion may be in the range of about 5 to 90 weight percent, or 20 to 85 weight percent, or 30 to 80 weight percent of the emulsion composition.

[0179] The average molecular weight of the insoluble polysiloxane, the internal phase viscosity of the insoluble polysiloxane, the viscosity of the silicone emulsion, and the particle size containing the insoluble polysiloxane are measured by methods widely used by those skilled in the art, such as the method disclosed in Smith, AL The Analytical Chemistry of Silicones, John Wiley & Sons, Inc.: New York, 1991. For example, the viscosity of the silicone emulsion can be measured at 30°C using a Brookfield viscometer with a spindle 6 at 2.5 rpm. The silicone emulsion may further contain additional emulsifiers, along with anionic surfactants.

[0180] Other classes of silicones suitable for use in the compositions of the present invention include, but are not limited to, i) silicone fluids (including, but not limited to, silicone oils) which are fluid materials having a viscosity of less than about 1,000,000 csk when measured at 25°C; ii) aminosilicones containing at least one primary, secondary, or tertiary amine; iii) cationic silicones containing at least one quaternary ammonium functional group; iv) silicone gums containing materials having a viscosity of 1,000,000 csk or more when measured at 25°C; v) silicone resins containing highly crosslinked polymer siloxanes; vi) high refractive index silicones having a refractive index of at least 1.46; and vii) mixtures thereof.

[0181] The conditioning agent of the personal care composition of the present invention may further contain at least one organic conditioning material, such as an oil or wax, either alone or in combination with other conditioning agents such as the silicones described above. The organic material may be a nonpolymer, oligomer, or polymer. It may be in the form of an oil or wax, and may be added directly to the formulation or in a pre-emulsified form. Some non-limiting examples of organic conditioning materials include, but are not limited to, i) hydrocarbon oils, ii) polyolefins, iii) aliphatic esters, iv) fluorinated conditioning compounds, v) aliphatic alcohols, vi) alkyl glucosides and alkyl glucoside derivatives, vii) quaternary ammonium compounds, viiii) polyethylene glycols and polypropylene glycols having a molecular weight of up to about 2,000,000, including those with CTFA names PEG-200, PEG-400, PEG-600, PEG-1000, PEG-2M, PEG-7M, PEG-14M, PEG-45M, and mixtures thereof.

[0182] 2. Emulsifier Various anionic and nonionic emulsifiers can be used in the personal care compositions of the present invention. Anionic and nonionic emulsifiers may be essentially monomers or polymers. Examples of monomers include, but are not limited to, alkyl ethoxylates, alkyl sulfates, soaps, and fatty acid esters, and their derivatives. Examples of polymers include, but are not limited to, polyacrylates, polyethylene glycols, and block copolymers, and their derivatives. Naturally occurring emulsifiers such as lanolin, lecithin, and lignin, and their derivatives, are also non-limiting examples of useful emulsifiers.

[0183] 3. Chelating agents Personal care compositions may further contain chelating agents. Suitable chelating agents are those described in AE Martell & R M Smith, Critical Stability Constants, Vol. 1, Plenum Press, New York & London (1974) and AE Martell & R D Hancock, Metal Complexes in Aqueous Solution, Plenum Press, New York & London (1996), both of which are incorporated herein by reference. With respect to chelating agents, the term “salts and derivatives thereof” means salts and derivatives that contain the same functional structure (e.g., the same chemical backbone) as the referenced chelating agent and have similar or better chelating properties. This term includes alkali metals, alkaline earth metals, ammonium, substituted ammonium salts (i.e., monoethanolammonium, diethanolammonium, triethanolammonium) salts, esters of chelating agents having an acidic moiety, and mixtures thereof, in particular all sodium, potassium, or ammonium salts. The term “derivative” also includes “chelating surfactant” compounds, such as those exemplified in U.S. Patent No. 5,284,972, and large molecules containing one or more chelating groups having the same functional structure as the parent chelating agent, such as polymer EDDS (ethylenediamine disuccinic acid) disclosed in U.S. Patent No. 5,747,440.

[0184] Chelating agents can be incorporated into the compositions described herein in amounts ranging from 0.001% to 10.0% by weight of the total composition, or about 0.01% to 2.0%.

[0185] Examples of non-restrictive chelating agents include carboxylic acids, aminocarboxylic acids, such as aminosides, phosphoric acid, phosphonic acid, polyphosphonic acid, polyethyleneimine, polyfunctionally substituted aromatics, their derivatives, and salts.

[0186] Examples of non-limiting chelating agents include the following materials and their salts: ethylenediaminetetraacetic acid (EDTA), ethylenediaminetriacetic acid, ethylenediamine-N,N'-disuccinic acid (EDDS), ethylenediamine-N,N'-diglutaric acid (EDDG), salicylic acid, aspartic acid, glutamic acid, glycine, malonic acid, histidine, diethylenetriaminepentaacetate (DTPA), N-hydroxyethylethylenediamine triacetate, nitrilotriacetate, ethylenediaminetetrapropionate, and tri Ethylenetetraamine hexaacetate, ethanol diglycine, propylenediaminetetraacetic acid (PDTA), methylglycine diacetic acid (MODA), diethylenetriamine pentaacetic acid, methylglycine diacetic acid (MGDA), N-acyl-N,N',N'-ethylenediamine triacetic acid, nitrilotriacetic acid, ethylenediamine diglutaric acid (EDGA), 2-hydroxypropylenediamine disuccinate (HPDS), glycinamide-N,N'-disuccinate (GADS), 2-Hydroxypropylenediamine-N-N'-disuccinic acid (HPDDS), N-2-hydroxyethyl-N,N-diacetic acid, glyceryl iminodiacetic acid, iminodiacetic acid-N-2-hydroxypropyl sulfonic acid, aspartate N-carboxymethyl-N-2-hydroxypropyl-3-sulfonic acid, alanine-N,N'-diacetic acid, aspartate-N,N'-diacetic acid, aspartate N-monoacetic acid, iminodisuccinic acid, diamine-N,N'-dipolyacid, monoa Mido-N,N'-dipolyacid, diaminoalkyl di(sulfosuccinate) (DDS), ethylenediamine-N-N'-bis(ortho-hydroxyphenylacetic acid)), N,N'-bis(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic acid, ethylenediaminetetrapropionate, triethylenetetraamine hexaacetate, diethylenetriamine pentaacetate, dipicolinic acid, ethylenedisysteic acid (EDC), ethylenediamine-N,N'-bis(2-hydroxyphenylacetic acid) (EDDHA), glutamic acid diacetic acid (GLDA), hexaaminocarboxylate (HBED), polyethyleneimine, 1-hydroxydiphosphonate, aminotri(methylenephosphonic acid) (ATMP), nitrilotrimethylenephosphonate (NTP), ethylenediaminetetramethylenephosphonate, diethylenetriaminepentamethylenephosphonate (DTPMP), ethane-1-hydroxydiphosphonate (HEDP), 2-phosphonobutane-1,2,4-tricarboxylic acid, polyphosphate (polvphosphoric acid), sodium tripolyphosphate, tetrasodium diphosphate, hexametaphosphate, sodium metaphosphate, phosphonic acids and derivatives, aminoalkylene-poly(alkylenephosphonic acid), aminotri(1-ethylphosphonic acid), ethylenediaminetetra(1-ethylphosphonic acid), aminotri(1-propylphosphonic acid), Aminotri(isopropylphosphonic acid), ethylenediaminetetra(methylenephosphonic acid) (EDTMP), 1,2-dihydroxy-3,5-disulfobenzene.

[0187] Water-based carrier The personal care composition may be in the form of a pourable liquid (under ambient conditions). Thus, such a composition typically contains a carrier, which is present in a concentration of about 40% to about 85% by weight, or about 45% to about 80% by weight, or about 50% to about 75% by weight of the personal care composition. The carrier may comprise water, or a miscible mixture of water and an organic solvent, and in one embodiment, may comprise water with minimal organic solvent content or without significant concentrations of organic solvent, except when incidentally incorporated into the composition as a trace component of other essential or optional components.

[0188] Suitable carriers for the personal care composition of the present invention include water and aqueous solutions of lower alkyl alcohols and polyhydric alcohols. Useful lower alkyl alcohols in this specification are monohydric alcohols having 1 to 6 carbon atoms, in one embodiment, ethanol and isopropanol. Exemplary polyhydric alcohols useful in this specification include propylene glycol, hexylene glycol, glycerin, and propanediol.

[0189] G. Product form The personal care composition of the present invention may be present in a typical personal care formulation. The composition may be in the form of a solution, dispersion, emulsion, powder, talc, capsule, sphere, sponger, solid dosage form, foam, and other delivery mechanisms. The composition of the present invention may be in the form of leave-on hair products such as hair tonics, treatments and styling products, rinse-off hair products such as shampoos and personal cleansing products (including beard washes and washes), and treatment products, as well as any other form that can be applied to the hair.

[0190] H. Applicator In this invention, the personal care composition may be dispensed directly from an applicator for dispensing onto the skin beneath the hair (e.g., the scalp, the skin beneath the beard, etc.). Dispensing directly onto the skin beneath the hair via a targeted delivery applicator allows for direct application of the undiluted cleanser to areas where cleansing is particularly needed. This also minimizes the risk of the cleansing solution getting into the eyes.

[0191] The applicator is attached to, or can be attached to, a bottle containing a cleansing personal care composition. The applicator may consist of a base that holds or extends to one or more comb teeth. The comb teeth have openings that may be located at the tip, the base, or at any point between the tip and the base. These openings allow the product to be dispensed directly from the bottle onto the hair and / or skin beneath the hair.

[0192] Alternatively, the applicator may consist of brush-like bristles attached to or extending from the base. In this case, the product is dispensed from the base, and the bristles allow for distribution of the product through a combing or brushing motion.

[0193] The design and materials of the applicator and comb teeth can also be optimized to allow for massage of the skin beneath the hair (e.g., the scalp, the skin around the beard). In this case, it is beneficial that the shape of the comb teeth or bristles at the tip is more rounded, similar to the rollerball applicators used for eye cream. The material may also be smoother and softer, for example, a metallic or metallic finish, or a "rubber-like material."

[0194] Preparation of personal care compositions The personal care composition is prepared by adding a surfactant, an anti-dandruff agent, a fragrance, a viscosity modifier, a cationic polymer, and the remainder water with thorough stirring to ensure a homogeneous mixture. The mixture may be heated to 50-75°C to accelerate the solubilization of the soluble agents, and then cooled. To provide the personal care composition of the present invention suitable for application to the scalp, facial / body skin, and hair, the pH of the product may be adjusted as needed, and the pH may vary between approximately pH 2.5-5.5 or approximately pH 2.5-5, or approximately pH 2.5-3.5 or approximately pH 3-5, and approximately pH 3-4, based on the selection of a particular cleansing surfactant and / or other components.

[0195] Hydroxy acid cocktail Selection of hydroxy acid cocktails: Identify cocktails of hydroxy acids (salicylic acid and citric acid) using a first-principles model approach. This model uses the octanol / water partition coefficient (LogP) and acid dissociation constant pK of hydroxy acids. aThe ability of each hydroxy acid to chelate metals from the surface of both hair and the skin beneath the hair, and to bind calcium within the upper layers of the skin, was defined by utilizing the logP and calcium binding constant (logK). This invention attempts to determine whether any of the hydroxy acids of interest has the driving force to penetrate / divide the lipid matrix (skin and hair). Based on LogP, salicylic acid has the highest driving force for lipid division, while citric acid has only a low dividing force. This invention further aims to understand whether each hydroxy acid is available to bind calcium when it is in its desired phase. Salicylic acid, having one carboxyl group, shows some ability to bind calcium within the lipid matrix, while citric acid, having three carboxyl groups, shows a high ability to bind calcium outside the lipid phase. Since these two acids support the ability to penetrate the lipid matrix and bind to calcium, they are selected to be used in combination for product prototyping.

[0196] [Table 2]

[0197] In vitro calcium chelation screening of weak acids: A high-throughput in vitro screening method has been developed to help identify lead acids that can function as calcium chelating agents. The intention of this method is to mimic the lipid matrix of the scalp and quantify the amount of calcium that can be extracted from that matrix. A 1000 ppm CaCO3+ solution is prepared in octanol (lipid substitute phase). An aqueous solution containing 3 wt% hydroxy acid is also prepared (aqueous phase) and adjusted to a pH of approximately 3. Equal volumes of the lipid phase and aqueous phase are added to a conical vial and vortexed for 2 minutes. The vial is left to stand for 2 hours, and then the aqueous phase at the bottom is removed from the conical vial and subjected to calcium analysis by ICP-OES. The table below roughly summarizes the amount of calcium present in the aqueous phase after the experimental procedure.

[0198]

number

[0199] [Table 3]

[0200] Discussion: Citric acid exhibits the highest calcium chelating ability among the screening subset of hydroxy acids. Salicylic acid exhibits a lower calcium chelating ability.

[0201] 1. Formulation parameters to enable salicylic acid delivery: 2a. In vivo scalp application The adhesion of scalp-active substances to the scalp is measured by washing an individual's hair with a composition containing scalp-active substances, such as the composition according to the present invention. A trained beautician applies 5 g of a control liquid product to half of a panelist's scalp and washes it according to a conventional washing protocol. Then, 5 g of the test product is applied to the other half of the panelist's head and washed according to a conventional washing protocol. The hair is then separated over the scalp area, and an open-end glass cylinder is held on the surface while an aliquot of the extraction solution is added and stirred, then collected and analyzed for the content of scalp-active substances based on conventional methods such as HPLC. The scalp adhesion method can be used as an alternative method for measuring the delivery of active substances (e.g., salicylic acid) to biological substrates.

[0202] Measurement of the amount of active ingredient attached The concentration of the agent in the ethanol extraction solvent is measured by HPLC. Quantification is performed relative to a standard curve. The concentration detected by HPLC is converted to grams to the collected amount by using the concentration multiplied by the volume. The adhesion efficiency can be calculated using the following equation. The area of ​​scalp extracted in each case is kept constant. Adhesion efficiency = (Mass of agent adhered by the example formulation) / (Mass of agent adhered by the control formulation)

[0203] Example of adhesion efficiency calculation: Mass of salicylic acid (SA) adhering to the formulation in the example = 1.0 μg Mass of salicylic acid (SA) attached to the control formulation = 0.5 μg Adhesion efficiency = 1.0 / 0.5 Adhesion efficiency = 2 times

[0204] [Table 4]

[0205] [Table 5]

[0206] [Table 6]

[0207] Conclusion regarding contact with the scalp: 1. The lower the pH, the greater the amount of salicylic acid that can adhere to the scalp (A vs. B). 2. Adhesion to the scalp is minimized by coacervate delivery (A vs. C). 3. Prototypes with lower pH and fewer surfactants delivered significantly more adhesion to the scalp compared to the control (A vs. I). 4. There was no difference in salicylic acid deposition between sulfate-free (sodium methyl cocoyl taurate) surfactants and sulfated (SLE1S) surfactants (E vs. F). 5. The less surfactant there is, the greater the amount of salicylic acid that can adhere to the scalp (I to H, Q to P). 6. The shorter the retention time before rinsing, the less salicylic acid adheres to the scalp (L vs. K). 7. The less salicylic acid a product contains, the lower the level of salicylic acid deposited on the scalp (N vs. M).

[0208] The personal care composition of the present invention may have at least 1.5 times the hydroxy acid adhesion efficiency on the scalp. The personal care composition of the present invention may have 6.5 times the hydroxy acid adhesion efficacy.

[0209] [Table 7]

[0210] Conclusion regarding adhesion to hair: 1. The longer the product remains on the hair before rinsing, the greater the amount of salicylic acid that can adhere to the hair (Q vs. R).

[0211] 2. The increased DVS effect from (R) versus (Q) indicates that increased salicylic acid delivery allows for a decrease in water uptake.

[0212] [Table 8]

[0213] 3. Notable effects: 3a. Effects on the scalp - Shedding of flakes when combing: Composition I in the examples was tested in a small-scale (n=28) consumer segmentation study on scalps, where consumers incorporated Composition I into their normal routine on one side of their scalp and continued their normal routine on the other side. Panelists were asked to compare the overall results of the treated side versus the untreated side on a scale of greatly worsened (-2), slightly worsened (-1), no change (0), slightly improved (+1), and greatly improved (+2). In addition, panelists completed the activity of combing dry skin flakes onto black paper on each side of their scalp. These flakes were then analyzed by image analysis to quantify the number of dry skin flakes and the area of ​​flakes per side of the scalp. As shown below, panelists who reported greatly improved (LOT) the treated side also showed a reduction in dry skin flakes on the treated side of their scalp.

[0214] [Table 9] * Evaluated with s = 20% risk

[0215] [Table 10]

[0216] 3c. Technical effects on hair Methods: In a small-scale base (n=12) scalp hair sampling study, hair samples were taken before and after a single treatment with composition I of the example, and after one week of use. Panelists were instructed to maintain their usual routine on their entire head, but to add test composition (i) to one side of their head as a second step between shampooing and conditioning. Hair samples were collected from both sides and the effect of adding test composition (i) was compared with the routine and with a single variable. Metal content on the hair was measured by ICP-OES, and the measurement was reported as a percentage difference from the baseline metal content on the hair.

[0217] [Table 11]

[0218] Considerations on metal chelation: 1. The main metals present in hair at baseline are calcium, magnesium, and zinc (more than 200 μg per gram of hair). 2. Adding composition I of the example makes it possible to reduce the amount of metal present on the hair compared to the consumer's current habits. a. A significant difference (decrease) in the amount of calcium was observed after using the product once, compared to the current habit. b. After using the product for one week, a significant difference (decrease) was observed in the amounts of Ca, Cu, Fe, Mg, and Zn compared to the current habit.

[0219] Non-limiting examples The personal care compositions shown in the following examples are prepared by conventional compounding and mixing methods. All amounts exemplified are listed as weight percentages on an active basis, excluding minor materials such as diluents, preservatives, coloring solutions, imaging components, plants, etc., unless otherwise specified. Unless otherwise indicated, all percentages are based on weight.

[0220] [Table 12]

[0221] [Table 13]

[0222] [Table 14]

[0223] Additional Examples / Combinations A. A personal care composition comprising 2% - 10% anionic surfactant and 0.5% - 5% hydroxy acid selected from the group consisting of salicylic acid combined with citric acid, and the personal cleansing composition has a pH of about 2.5 to about 5.5, a personal care composition. B. The personal care composition according to paragraph A, wherein the hydroxy acid adhesion efficiency on the scalp is at least 1.5 times. C. The personal care composition according to paragraphs A and B, wherein the hydroxy acid adhesion efficacy is 6.5 times. D. The surfactant is selected from the group consisting of anionic, amphoteric, nonionic or zwitterionic surfactants, or mixtures thereof, the personal care composition according to paragraphs A - C. E. The personal care composition according to paragraphs A - D, further comprising about 0.25% - about 8% of one or more amphoteric, nonionic, or zwitterionic co - surfactants. F. The pH is about 3 to about 4, the personal care composition according to paragraphs A - E. G. The personal care composition described in paragraphs A to F, wherein the hydroxy acid is present in an amount of approximately 1% to approximately 4%. H. The personal care composition described in paragraphs A to G contains approximately 2% to 3% hydroxy acid. I. The personal care composition described in paragraphs A to H, wherein the anionic surfactant is present in an amount of approximately 2% to approximately 8%. J. The personal care composition according to paragraphs A to I, further comprising a polymer. K. The personal care composition according to paragraphs A to J, further comprising a cationic polymer. L. A personal care composition according to paragraphs A to K, further comprising one or more cationic polymers selected from the group consisting of cationic guar polymer, cationic non-guar galactomannan polymer, cationic tapioca polymer, cationic copolymer of acrylamide monomer and cationic monomer, synthetic non-crosslinked cationic polymer which may or may not form a lyotropic liquid crystal when combined with a cleansing surfactant, cationic cellulose polymer, and mixtures thereof. The personal care composition according to paragraphs A to L, wherein one or more cationic polymers are selected from the group consisting of guar hydroxypropyltrimonium chloride, a salt of hydroxyethylcellulose obtained by reacting with a trimethylammonium substituted epoxide, a cationic copolymer of an acrylamide monomer and a cationic monomer, and a synthetic non-crosslinked cationic polymer which may or may not form a lyotropic liquid crystal when combined with a cleansing surfactant. The personal care composition described in paragraphs A to M, wherein one or more cationic polymers are present in an amount of approximately 0.08% to approximately 3%. 0. The personal care composition according to paragraphs A to N, wherein one or more cationic polymers are present in an amount of approximately 0.1% to approximately 2%. P. The personal care composition according to paragraphs A to O, wherein one or more cationic polymers are present in an amount of about 0.2% to about 1%. Q. The personal care composition described in paragraphs A to P, further comprising approximately 0.01% to approximately 10% of one or more thickening polymers. The personal care composition according to paragraphs A to Q, wherein R.1 or more thickening polymers are selected from the group consisting of homopolymers based on acrylic acid, methacrylic acid, or other related derivatives, alkali-expandable and hydrophobic-modified alkali-expandable acrylic copolymers or methacrylate copolymers, soluble crosslinked acrylic polymers, associative polymer thickeners, and mixtures thereof. A personal care composition according to paragraphs A to R, further comprising one or more health-promoting active substances for the scalp, face / body skin, or hair. The personal care composition described in paragraphs A to S, wherein one or more health-promoting active substances for the scalp, face / body skin, or hair are selected from the group consisting of pyrithione, piroctone olamine, crimbazole, sulfur, menthol, menthyl lactate, and polyvalent metal salts of mixtures thereof. A personal care composition according to paragraphs A to T, wherein one or more health-promoting active substances for the scalp, face / body skin, or hair is piroctone olamine. V. A personal care composition according to paragraphs A to U, wherein one or more health-promoting active substances for the scalp, face / body skin, or hair is zinc pyrithione. W. A personal care composition as described in paragraphs A to W, in which one or more health-promoting active substances for the scalp, face / body skin, or hair are present in an amount of approximately 0.01% to 10%. X. A personal care composition according to paragraphs A to X, further comprising one or more of the following: a health agent for the scalp, face / body skin, or hair. Y. A personal care composition described in paragraphs A to Y, containing approximately 0.05% to 9% of a health agent for the scalp, face / body skin, or hair. Z. A personal care composition as described in paragraphs A to Z, comprising approximately 0.1% to 8% of one or more scalp, facial / body skin, or hair health agents.

[0224] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​listed. Instead, unless otherwise specified, each such dimension is intended to mean both the listed value and the functionally equivalent range encompassing that value. For example, a dimension disclosed as "40 mm" is intended to mean "approximately 40 mm."

[0225] All documents referenced herein, including any patents or patent applications that are cross-referenced or related, and any patent applications or patents on which this application claims priority or benefit thereof, are incorporated herein by reference in their entirety, unless expressly excluded or otherwise limited. No reference to any document shall be deemed prior art to any invention disclosed or claimed herein, nor shall any such invention be taught, suggested, or disclosed, either alone or in combination with any one or more other references. Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in any document incorporated by reference, the meaning or definition given to that term in this document shall prevail.

[0226] While specific embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, it is intended that all such changes and modifications within the scope of the invention be covered in the appended claims.

Claims

1. Personal care composition, a. 2% to 10% anionic surfactant, b. 0.5% to 5% of a hydroxy acid selected from the group consisting of salicylic acid combined with citric acid, Includes, The personal cleansing composition is a personal care composition having a pH of 2.5 to 5.

5.

2. The personal care composition according to claim 1, wherein the hydroxy acid adhesion efficiency on the scalp is at least 1.5 times, and preferably the hydroxy acid adhesion efficacy is 6.5 times.

3. The personal care composition according to claim 1 or 2, wherein the surfactant is selected from the group consisting of anionic, amphoteric, nonionic, or zwitterionic surfactants, or mixtures thereof.

4. A personal care composition according to any one of claims 1 to 3, further comprising 0.25% to 8% of one or more amphoteric, nonionic, or zwitterionic cosurfactants.

5. The personal care composition according to any one of claims 1 to 4, wherein the pH is 3 to 4.

6. The personal care composition according to any one of claims 1 to 5, wherein the hydroxy acid is present in an amount of 1% to 4%, preferably 2% to 3%.

7. The personal care composition according to any one of claims 1 to 6, wherein the anionic surfactant is present in an amount of 2% to 8%.

8. The personal care composition according to any one of claims 1 to 7, further comprising a polymer.

9. The composition further comprises a cationic polymer, preferably one or more cationic polymers selected from the group consisting of a cationic guar polymer, a cationic non-guar galactomannan polymer, a cationic tapioca polymer, a cationic copolymer of an acrylamide monomer and a cationic monomer, a synthetic non-crosslinked cationic polymer which may or may not form a lyotropic liquid crystal when combined with the cleansing surfactant, a cationic cellulose polymer, and mixtures thereof, wherein the one or more cationic polymers are selected from the group consisting of guar hydroxypropyltrimonium chloride, a salt of hydroxyethylcellulose reacted with a trimethylammonium substituted epoxide, a cationic copolymer of an acrylamide monomer and a cationic monomer, and a synthetic non-crosslinked cationic polymer which may or may not form a lyotropic liquid crystal when combined with the cleansing surfactant, according to any one of claims 1 to 8.

10. The personal care composition according to any one of claims 1 to 9, wherein the one or more cationic polymers are present in an amount of 0.08% to 3%, preferably 0.1% to 2%, and preferably 0.2% to 1%.

11. A personal care composition according to any one of claims 1 to 10, further comprising 0.01% to 10% of one or more thickening polymers, preferably the one or more thickening polymers being selected from the group consisting of homopolymers based on acrylic acid, methacrylic acid or other related derivatives, alkali-swellable and hydrophobic modified alkali-swellable acrylic copolymers or methacrylate copolymers, soluble crosslinked acrylic polymers, associative polymer thickeners, and mixtures thereof.

12. A personal care composition according to any one of claims 1 to 11, further comprising one or more health-promoting active substances for the scalp, face / body skin, or hair, preferably, one or more health-promoting active substances for the scalp, face / body skin, or hair being selected from the group consisting of pyrithione, piroctone olamine, crimbazole, sulfur, menthol, menthyl lactate, and polyvalent metal salts of mixtures thereof, preferably, the one or more health-promoting active substances for the scalp, face / body skin, or hair being piroctone olamine, and preferably, the one or more health-promoting active substances for the scalp, face / body skin, or hair being zinc pyrithione.

13. The personal care composition according to any one of claims 1 to 12, wherein the one or more health-promoting active substances for the scalp, face / body skin, or hair are present in an amount of 0.01% to 10%.

14. A personal care composition according to any one of claims 1 to 13, further comprising one or more of the following: a health agent for the scalp, face / body skin, or hair.

15. The personal care composition according to claim 24, wherein the aforementioned scalp, facial / body skin, or hair health agent is present in an amount of 0.05% to 9%, preferably, the amount of one or more of the aforementioned scalp, facial / body skin, or hair health agents is present in an amount of 0.1% to 8%.

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