Sulfate-free personal cleansing composition with effective preservative properties

Abstract

To provide a personal cleansing composition that offers effective preservation of microorganisms with a single preservative, while also meeting consumer demand for fewer preservatives. [Solution] A personal cleansing composition comprising approximately 6% to approximately 50% of one or more sulfate-free surfactants, approximately 0.5% to approximately 20% of lauramidopropyl betaine, approximately 0.1% to approximately 10% of zinc pyrithione, approximately 0.05% to approximately 3% of cationic polymers, approximately 0.05% to approximately 10% of stabilizing polymers, and approximately 0.45% to approximately 0.75% of preservatives, having a pH of approximately 5 to approximately 7, consisting of 9 or fewer components, and free of sulfate-based surfactants.

Description

[Technical Field]

[0001] This disclosure relates to sulfate-free personal cleansing compositions, generally formulated with scalp active ingredients, amphoteric surfactants, and cationic polymers that maintain acceptable preservative properties. [Background technology]

[0002] Preservatives are substances added to personal cleansing compositions such as shampoos, body washes, body lotions, ointments, creams, and topical medications, with the aim of inhibiting the growth of microorganisms that may result from contamination by consumers during use. Inhibiting the growth of microorganisms such as bacteria and fungi is of paramount importance for maintaining product quality, extending shelf life, and protecting consumers. There is a continuing consumer demand to reduce the amount and / or number of preservatives used in consumer products. On the other hand, exposure of microorganisms to insufficient concentrations of preservatives or antibacterial agents can lead to the selection or emergence of resistant strains. Therefore, there is a need to use preservatives that are sufficiently high in concentration to suppress microbial growth and maintain product quality, but sufficiently low in concentration to alleviate consumer concerns. [Overview of the project] [Problems that the invention aims to solve]

[0003] Surprisingly, it was found that a single preservative could provide effective microorganism-preserving properties for personal cleansing compositions while simultaneously meeting consumer demand for fewer preservatives. Further determination was made regarding which components and combinations of components provide micro-robustness. [Means for solving the problem]

[0004] The present invention relates to a personal cleansing composition comprising from about 6% to about 50% of one or more sulfate-free surfactants, from about 0.5% to 20% of lauramidopropyl betaine, from about 0.1% to about 10% of zinc pyrithione, from about 0.05% to about 3% of a cationic polymer, from about 0.05% to 10% of a stabilizing polymer, from about 0.1% to about 2% of a preservative, and having a pH of from about 5 to about 7, and is directed to a personal cleansing composition.

DETAILED DESCRIPTION OF THE INVENTION

[0005] This specification concludes with "claims" which particularly point out and distinctly claim the invention, but it is believed that the disclosure will be better understood from the following description.

[0006] As used herein, the term "fluid" includes liquids and gels.

[0007] As used herein, the articles including "a" and "an" are understood to mean one or more of what is claimed or described when used in the claims.

[0008] As used herein, "comprising" means that other steps and other ingredients can be added that do not affect the end result. This term encompasses the terms "consisting of" and "consisting essentially of".

[0009] As used herein, "mixture" means a simple combination of materials and any compounds that may result from such combinations.

[0010] As used herein, "molecular weight" or "M.Wt." refers to the weight average molecular weight, unless otherwise indicated. The molecular weight is measured using gel permeation chromatography ("GPC"), an industry standard method. The molecular weight has units of grams / mole.

[0011] As used herein, "cleansing composition" includes personal cleansing products such as shampoos, conditioners, conditioning shampoos, shower gels, liquid hand soaps, facial cleansers, and other surfactant-based liquid compositions.

[0012] As used herein, the terms "include", "includes", and "including" are meant to be non-limiting and are understood to mean "comprise", "comprises", and "comprising", respectively.

[0013] 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 the active level and thus do not include carriers or by-products that may be present in commercially available materials.

[0014] Unless otherwise noted, the concentration of all components or compositions relates to the active portion of that component or composition, excluding impurities that may be present in commercially available sources of such components or compositions, such as residual solvents or by-products.

[0015] 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 shown 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.

[0016] A. Surfactants The cleansing compositions described herein may contain one or more surfactants in the surfactant system. The one or more surfactants may not substantially contain sulfate surfactants. As can be understood, surfactants provide a cleansing effect on soiled items such as hair, skin, and hair follicles by facilitating the removal of oil and other grime. Surfactants generally facilitate such cleansing due to their amphiphilic nature, which allows the surfactant to decompose and form micelles around the oil and other grime, which are then rinsed away, thereby removing them from the soiled items. Suitable surfactants for cleansing compositions may contain an anionic moiety that allows the formation of coacervates with cationic polymers. Surfactants may be selected from anionic surfactants, amphoteric surfactants, zwitterionic surfactants, nonionic surfactants, and combinations thereof.

[0017] Cleansing compositions typically utilize sulfate-based surfactants (such as, but not limited to, sodium lauryl sulfate) for foaming, stability, clarity, and their effectiveness in cleansing. The cleansing compositions described herein are substantially sulfate-free. As used herein, “substantially sulfate-free” means containing sulfate in an amount of about 0% to about 3% by weight, alternatively about 0% to about 2% by weight, alternatively about 0% to about 1% by weight, alternatively about 0% to about 0.5% by weight, alternatively about 0% to about 0.25% by weight, alternatively about 0% to about 0.1% by weight, alternatively about 0% to about 0.05% by weight, alternatively about 0% to about 0.01% by weight, or alternatively about 0% to about 0.001% by weight, and / or not containing sulfate. As used herein, “does not contain” means 0% by weight.

[0018] Additionally, the surfactant systems described herein may contain about 0% to about 1% by weight of inorganic salts.

[0019] Additionally, surfactants can be added to the composition as a solution rather than as an undiluted material, and the solution may contain inorganic salts that can be added to the formulation. The surfactant formulation may contain inorganic salts in an amount of about 0% to about 2%, alternatively about 0.1% to about 1.5%, or alternatively about 0.2% to about 1% of the inorganic salts in the final composition.

[0020] Suitable surfactants that are substantially sulfate-free include sodium, ammonium, or potassium salts of isethionates; sodium, ammonium, or potassium salts of sulfonates; sodium, ammonium, or potassium salts of ethersulfonates; sodium, ammonium, or potassium salts of sulfosuccinates; sodium, ammonium, or potassium salts of sulfoacetates; sodium, ammonium, or potassium salts of glycinates; sodium, ammonium, or potassium salts of sarcosinates; sodium, ammonium, or potassium salts of glutamates; sodium, ammonium, or potassium salts of alaninates; sodium, ammonium, or potassium salts of carboxylates; sodium, ammonium, or potassium salts of taurates; sodium, ammonium, or potassium salts of phosphate esters; and combinations thereof.

[0021] The concentration of surfactant in the composition should be sufficient to provide the desired cleansing and foaming properties. The cleansing composition may have a total surfactant concentration of about 6% to about 50% by weight, about 5% to about 35% by weight, about 10% to about 50% by weight, about 15% to about 45% by weight, about 20% to about 40% by weight, about 22% to about 35% by weight, and / or about 25% to about 30% by weight.

[0022] The surfactant system may include one or more amino acid-based anionic surfactants. Non-limiting examples of amino acid-based anionic surfactants include sodium, ammonium, or potassium salts of acylglycinates; sodium, ammonium, or potassium salts of acylsarcosinates; sodium, ammonium, or potassium salts of acylglutamates; sodium, ammonium, or potassium salts of acylalaninates; and combinations thereof.

[0023] The amino acid-based anionic surfactant may be glutamate, for example, acyl glutamate. The composition may contain acyl glutamate concentrations of about 2% to about 22% by weight, about 3% to about 19% by weight, 4% to about 17% by weight, and / or about 5% to about 15% by weight.

[0024] Non-exclusive examples of acyl glutamates include sodium cocoyl glutamate, disodium cocoyl glutamate, ammonium cocoyl glutamate, diammonium cocoyl glutamate, sodium lauroyl glutamate, disodium lauroyl glutamate, sodium cocoyl hydrolyzed wheat protein glutamate, disodium cocoyl hydrolyzed wheat protein glutamate, potassium cocoyl glutamate, dipotassium cocoyl glutamate, potassium lauroyl glutamate, dipotassium lauroyl glutamate, potassium cocoyl hydrolyzed wheat protein glutamate, dipotassium cocoyl hydrolyzed wheat protein glutamate, sodium capryloyl glutamate, disodium capryloyl glutamate, potassium capryloyl glutamate, dipotassium capryloyl glutamate, sodium undecylenoyl glutamate, disodium undecylenoyl glutamate, potassium undecylenoyl glutamate, undecylenoyl The following may be selected: dipotassium glutamate, hydrogenated tallow glutamate disodium, stearoyl glutamate sodium, stearoyl glutamate disodium, stearoyl glutamate potassium, stearoyl glutamate dipotassium, myristoyl glutamate sodium, myristoyl glutamate disodium, myristoyl glutamate potassium, myristoyl glutamate dipotassium, cocoyl / hydrogenated tallow glutamate sodium, cocoyl / palmoyl / sunfloweroyl glutamate sodium, hydrogenated tallowoyl glutamate sodium, olivoyl glutamate sodium, olivoyl glutamate disodium, palmoyl glutamate sodium, palmoyl glutamate disodium, TEA-cocoyl glutamate, TEA-hydrogenated tallowoyl glutamate, TEA-lauroyl glutamate, and mixtures thereof.

[0025] The amino acid-based anionic surfactant may be an alaninate, such as an acylalaninate. Non-limiting examples of acylalaninates include sodium cocoylalaninate, sodium lauroylalaninate, sodium N-dodecanoyl-l-alaninate, and combinations thereof. The composition may have acylalaninate concentrations of about 2% to about 20% by weight, about 7% to about 15% by weight, and / or about 8% to about 12% by weight.

[0026] Amino acid-based anionic surfactants can be sarcosinates, such as acyl sarcosinates. Non-limiting examples of sarcosinates include sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, sodium myristoyl sarcosinate, TEA-cocoyl sarcosinate, ammonium cocoyl sarcosinate, ammonium lauroyl sarcosinate, dimer dilinoleyl bis-lauroyl glutamate / lauroyl sarcosinate, and disodium lauroamphodiacetate lauroyl sarcosinate. The following can be selected from the group consisting of sarcosinate, isopropyl lauroyl sarcosinate, potassium cocoyl sarcosinate, potassium lauroyl sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, sodium myristoyl sarcosinate, sodium oleoyl sarcosinate, sodium palmitoyl sarcosinate, TEA-cocoyl sarcosinate, TEA-lauroyl sarcosinate, TEA-oleoyl sarcosinate, TEA-palm kernel sarcosinate, and combinations thereof.

[0027] Amino acid-based anionic surfactants can be glycinates, such as acylglycinates. Non-limiting examples of acylglycinates include sodium cocoyl glycinate, sodium lauroyl glycinate, and combinations thereof.

[0028] 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.

[0029] Non-limiting examples of sulfosuccinate surfactants include disodium N-octadecyl sulfosuccinate, disodium lauryl sulfosuccinate, diammonium lauryl sulfosuccinate, sodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, tetrasodium N-(1,2-dicarboxyethyl)-N-octadecyl sulfosuccinate, diamyl ester of sodium sulfosuccinate, dihexyl ester of sodium sulfosuccinate, dioctyl ester of sodium sulfosuccinate, and combinations thereof. Compositions may have sulfosuccinate concentrations of about 2% to about 22% by weight, about 3% to about 19% by weight, 4% to about 17% by weight, and / or about 5% to about 15% by weight.

[0030] Suitable isethionate surfactants may include reaction products of fatty acids esterified with isethionic acid and neutralized with sodium hydroxide. Fatty acids suitable for isethionate surfactants may be derived from coconut oil or palm kernel oil, containing methyl taurid amides. Non-limiting examples of isethionates may be selected from the group consisting of sodium lauroyl methyl isethionate, sodium cocoyl isethionate, ammonium cocoyl isethionate, hydrogenated sodium cocoyl methyl isethionate, sodium lauroyl isethionate, sodium cocoyl methyl isethionate, sodium myristoyl isethionate, sodium oleyl isethionate, sodium oleyl methyl isethionate, palm kernel oil (palm kerneloyl) isethionate, sodium stearoyl methyl isethionate, and mixtures thereof.

[0031] Non-limiting examples of sulfonates include alpha-olefin sulfonates, linear alkylbenzene sulfonates, sodium lauryl glucoside hydroxypropyl sulfonates, and combinations thereof.

[0032] Non-limiting examples of sulfoacetates include sodium lauryl sulfoacetate, ammonium lauryl sulfoacetate, and combinations thereof.

[0033] Non-limiting examples of glucose carboxylates include sodium lauryl glucoside carboxylate, sodium cocoyl glucoside carboxylate, and combinations thereof.

[0034] Non-limiting examples of alkyl ether carboxylates include sodium laureth-4 carboxylate, laureth-5 carboxylate, laureth-13 carboxylate, sodium C12-13 pareth-8 carboxylate, sodium C12-15 pareth-8 carboxylate, and combinations thereof.

[0035] 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.

[0036] The surfactant system may further contain one or more amphoteric surfactants, which can be selected from the group consisting of betaine, sultaine, hydroxysultan, amphohydroxypropyl sulfonate, alkyl amphoacetate, alkyl amphodiaacetate, and combinations thereof.

[0037] Examples of betaine amphoteric surfactants include cocodimethylcarboxymethyl betaine, cocoamidopropyl betaine (CAPB), cocobetaine, lauryl amidopropyl betaine (LAPB), coco-betaine, cetyl betaine, oleyl betaine, lauryldimethylcarboxymethyl betaine, lauryldimethylalphacarboxyethyl betaine, cetyldimethylcarboxymethyl betaine, laurylbis-(2-hydroxyethyl)carboxymethyl betaine, stearylbis-(2-hydroxypropyl)carboxymethyl betaine, oleyldimethylgamma-carboxypropyl betaine, laurylbis-(2-hydroxypropyl)alpha-carboxyethyl betaine, and mixtures thereof. Examples of sulfobetaines include cocodimethylsulfopropyl betaine, stearyldimethylsulfopropyl betaine, lauryldimethylsulfoethyl betaine, laurylbis-(2-hydroxyethyl)sulfopropyl betaine, and mixtures thereof.

[0038] Non-limiting examples of alkyl amphoacetates include sodium cocoyl amphoacetate, sodium lauroyl amphoacetate, and combinations thereof.

[0039] Amphoteric surfactants may include cocamidopropyl betaine (CAPB), lauramidopropyl betaine (LAPB), and combinations thereof.

[0040] The cleansing composition may contain amphoteric surfactant concentrations of approximately 0.5% to 20% by weight, approximately 1% to 15% by weight, approximately 2% to 13% by weight, approximately 3% to 15% by weight, and / or approximately 5% to 10% by weight.

[0041] The surfactant system may have a weight ratio of anionic surfactant to amphoteric surfactant of approximately 0.4:1 to approximately 1.25:1, anionic surfactant to amphoteric surfactant of approximately 0.5:1 to approximately 1.1:1, or anionic surfactant to amphoteric surfactant of approximately 0.6:1 to approximately 1:1. In some examples, the ratio of anionic surfactant to amphoteric surfactant may be less than 1.1:1.

[0042] The surfactant system may further contain one or more nonionic surfactants, which can be selected from the group consisting of alkyl polyglucosides, alkyl glycosides, acyl glucamides, and mixtures thereof. Non-limiting examples of alkyl glucosides include decyl glucosides, cocoyl glucosides, lauroyl glucosides, and combinations thereof.

[0043] Non-limiting examples of acylglucamides include lauroyl / myristoyl methylglucamide, capryloyl / caproyl methylglucamide, lauroyl / myristoyl methylglucamide, cocoyl methylglucamide, and combinations thereof.

[0044] The composition may contain nonionic cleansing surfactants that may include 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, and mixtures thereof.

[0045] B. Cationic polymers The cleansing composition may contain a cationic polymer that enables the formation of coacervates. As can be understood, the cationic charge of the cationic polymer may interact with the anionic charge of the surfactant to form a coacervate. Suitable cationic polymers include (a) cationic guar polymers, (b) cationic non-guar-galactomannan polymers, (c) cationic starch polymers, (d) cationic copolymers of acrylamide monomers and cationic monomers, (e) synthetic non-crosslinked cationic polymers that may or may not form lyotropic liquid crystals when combined with a cleansing surfactant, and (f) cationic cellulose polymers. In certain examples, two or more cationic polymers may be included.

[0046] Cationic polymers may be included in the cleansing composition in amounts of about 0.05% to about 3% by weight, about 0.075% to about 2.0% by weight, or about 0.1% to about 1.0% by weight. Cationic polymers may have cationic charge densities of about 0.2 meq / g to about 2.2 meq / g, about 0.3 meq / g to about 2.0 meq / g, about 0.4 meq / g to about 1.8 meq / g; about 0.5 meq / g to about 1.7 meq / g; and about 0.6 meq / g to about 1.3. The charge density may be measured at the pH of the intended use of the cleansing composition (e.g., about pH 3 to about pH 9, or about pH 4 to about pH 8). The average molecular weight of cationic polymers can generally be about 10,000 to about 10,000,000, about 50,000 to about 5,000,000, about 100,000 to about 3,000,000, about 300,000 to about 3,000,000, and about 100,000 to about 2,500,000. Low molecular weight cationic polymers can be used. Low molecular weight cationic polymers may have higher translucency in the liquid carrier of the cleansing composition. The cationic polymer may be a single type, such as guar hydroxypropyltrimonium chloride, a cationic guar polymer having a weight-average molecular weight of about 2,500,000 g / mol or less, and the cleansing composition may have additional cationic polymers of the same or different types.

[0047] Cationic guar polymer Cationic polymers can be cationic guar polymers, which are cation-substituted galactomannan (guar) gum derivatives. Suitable guar gums for guar gum derivatives can be obtained as naturally occurring materials derived from the guar plant species. As can be understood, the guar molecule is a linear mannan in which single galactose units branch at regular intervals on alternating mannose units. The mannose units are linked to each other by β(1-4) glycosidic bonds. Galactose branching occurs by α(1-6) bonds. Cationic derivatives of guar gum can be obtained through reactions between the hydroxyl groups of polygalactomannan and reactive quaternary ammonium compounds. The degree of substitution of cationic groups to the guar structure may be sufficient to provide the required cationic charge density described above.

[0048] Cationic guar polymers can have a weight-average molecular weight ("molecular weight") of less than approximately 3,000,000 g / mol and a charge density of approximately 0.05 meq / g to approximately 2.5 meq / g. Alternatively, cationic guar polymers can have weight-average molecular weights of less than 1,500,000 g / mol, approximately 150,000 g / mol to approximately 1,500,000 g / mol, approximately 200,000 g / mol to approximately 1,500,000 g / mol, approximately 300,000 g / mol to approximately 1,500,000 g / mol, and approximately 700,000,000 g / mol to approximately 1,500,000 g / mol. Cationic guar polymers can have charge densities of approximately 0.2 meq / g to approximately 2.2 meq / g, approximately 0.3 meq / g to approximately 2.0 meq / g, approximately 0.4 meq / g to approximately 1.8 meq / g; approximately 0.5 meq / g to approximately 1.7 meq / g; and approximately 0.6 meq / g to approximately 1.3 meq / g.

[0049] Cationic guar polymers can have a weight-average molecular weight of less than approximately 1,000,000 g / mol and a charge density of approximately 0.1 meq / g to approximately 2.5 meq / g. Cationic guar polymers can have weight-average molecular weights of less than 900,000 g / mol, approximately 150,000 to approximately 800,000 g / mol, approximately 200,000 g / mol to approximately 700,000 g / mol, approximately 300,000 to approximately 700,000 g / mol, approximately 400,000 to approximately 600,000 g / mol, approximately 150,000 g / mol to approximately 800,000 g / mol, approximately 200,000 g / mol to approximately 700,000 g / mol, approximately 300,000 g / mol to approximately 700,000 g / mol, and approximately 400,000 g / mol to approximately 600,000 g / mol. Cationic guar polymers have charge densities of approximately 0.2 meq / g to approximately 2.2 meq / g, approximately 0.3 meq / g to approximately 2.0 meq / g, approximately 0.4 meq / g to approximately 1.8 meq / g, and approximately 0.5 meq / g to approximately 1.5 meq / g.

[0050] The cleansing composition may contain cationic guar polymer in amounts of about 0.01% to less than about 0.7% by weight, about 0.04% to about 0.55% by weight, about 0.08% to about 0.5% by weight, about 0.16% to about 0.5% by weight, about 0.2% to about 0.5% by weight, about 0.3% to about 0.5% by weight, and about 0.4% to about 0.5% by weight of the cleansing composition.

[0051] Cationic guar polymers can be formed from quaternary ammonium compounds conforming to the following general formula II,

[0052] [ka] In the formula, R 3 , R 4 , and R 5 R is a methyl group or an ethyl group, 6 is an epoxyalkyl group of the following general formula III,

[0053] [ka] or R 6 is any of the halohydrin groups of the following general formula IV,

[0054]

Chemical formula

[0055] A suitable cationic guar polymer may conform to the following general formula V,

[0056]

Chemical formula

[0057]

Chemical formula

[0058] Suitable cationic guar polymers may also include cationic guar gum derivatives such as guar hydroxypropyltrimonium chloride. Suitable examples of guar hydroxypropyltrimonium chloride include the Jaguar® series, commercially available from Solvay SA, the Hi-Care series, commercially available from Rhodia, and N-Hance and AquaCat, commercially available from Ashland Inc. Jaguar® C-500 has a charge density of 0.8 meq / g and a molecular weight of 500,000 g / mol, and Jaguar Optima has a cationic charge density of approximately 1.25 meq / g and a molecular weight of approximately 500,000 g / mol, Jaguar® C-17 has a cationic charge density of approximately 0.6 meq / g and a molecular weight of approximately 2,200,000 g / mol, Jaguar® has a cationic charge density of approximately 0.8 meq / g, Hi-Care1000 has a charge density of approximately 0.7 meq / g and a molecular weight of approximately 600,000 g / mol, N-Hance3269 and N-Hance3270 have a charge density of approximately 0.7 meq / g and a molecular weight of approximately 425,000 g / mol, N-Hance3196 has a charge density of approximately 0.8 meq / g and a molecular weight of approximately 1,100,000 g / mol, and AquaCat CG518 has a charge density of approximately 0.9 meq / g and a molecular weight of approximately 50,000 g / mol. N-Hance BF-13 and N-Hance BF-17 are borate (boron)-free guar polymers. N-Hance BF-13 has a charge density of approximately 1.1 meq / g and a molecular weight of approximately 800,000, while N-Hance BF-17 has a charge density of approximately 1.7 meq / g and a molecular weight of approximately 800,000. BF-17 has a charge density of approximately 1.7 meq / g and a molecular weight of approximately 800,000. BF-17 has a charge density of approximately 1.7 meq / g and a molecular weight of approximately 800,000. BF-17 has a charge density of approximately 1.7 meq / g and a molecular weight of approximately 800,000. BF-17 has a charge density of approximately 1.7 meq / g and a molecular weight of approximately 800,000.

[0059] Cationic non-guargalactomannan polymer Cationic polymers can be galactomannan polymer derivatives. Preferred galactomannan polymers may have a mannose-to-galactose ratio greater than 2:1 on a monomer-to-monomer basis and may be cationic galactomannan polymer derivatives or amphoteric galactomannan polymer derivatives having a net positive charge. As used herein, the term "cationic galactomannan" refers to a galactomannan polymer to which cationic groups have 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.

[0060] Galactomannan polymers can be 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 branch at regular intervals on a specific mannose unit. 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 may also be influenced by climate. Non-guar galactomannan polymer derivatives may have a mannose-to-galactose ratio greater than 2:1 on a monomer-to-monomer basis. Preferred mannose-to-galactose ratios may also be greater than 3:1 or greater than 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.

[0061] The gums used in the preparation of non-guar-galactomannan polymer derivatives can be obtained from naturally occurring materials such as plant seeds or beans. Examples of various non-guar-galactomannan polymers include tara gum (3 parts mannose / 1 part galactose), carob or locust (4 parts mannose / 1 part galactose), and cassia gum (5 parts mannose / 1 part galactose).

[0062] Non-guargalactomannan polymer derivatives may have molecular weights ranging from approximately 1,000 g / mol to approximately 10,000,000 g / mol, and from approximately 5,000 g / mol to approximately 3,000,000 g / mol.

[0063] The cleansing compositions described herein may include 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 may be sufficient to provide the required cationic charge density.

[0064] Galactomannan polymer derivatives can be cationic derivatives of non-guar galactomannan polymers, obtained by the reaction of a hydroxyl group of a polygalactomannan polymer with a reactive quaternary ammonium compound. Suitable quaternary ammonium compounds used for forming cationic galactomannan polymer derivatives include those conforming to general formulas II to VI, as defined above.

[0065] The cationic non-guargalactomannan polymer derivative formed from the above-mentioned reagents can be represented by the following general formula VII:

[0066] [ka] In the formula, R is gum. Cationic galactomannan derivatives can be gum hydroxypropyltrimethylammonium chloride, which can be represented more specifically by the following general formula VIII.

[0067] [ka]

[0068] Galactomannan polymer derivatives can be amphoteric galactomannan polymer derivatives having a net positive charge, which can be obtained when a cationic galactomannan polymer derivative further contains anionic groups.

[0069] Cationic non-guargalactomannan can have a mannose-to-galactose ratio greater than approximately 4:1, a molecular weight of approximately 100,000 g / mol to approximately 500,000 g / mol, a molecular weight of approximately 50,000 g / mol to approximately 400,000 g / mol, and a cationic charge density of approximately 1 meq / g to approximately 5 meq / g and approximately 2 meq / g to approximately 4 meq / g.

[0070] The cleansing composition may contain at least about 0.05% by weight of a galactomannan polymer derivative. The cleansing composition may contain about 0.05% to about 2% by weight of a galactomannan polymer derivative.

[0071] Cationic starch polymer Suitable cationic polymers may also be 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.

[0072] The cleansing compositions described herein may contain cationic modified starch polymers in an amount ranging from about 0.01% to about 10% by weight, and / or from about 0.05% to about 5% by weight, of the composition.

[0073] The cationic modified starch polymers disclosed herein have a bound nitrogen percentage of about 0.5% to about 4%.

[0074] Cationic modified starch polymers can have molecular weights ranging from approximately 850,000 g / mol to approximately 15,000,000 g / mol, and from approximately 900,000 g / mol to approximately 5,000,000 g / mol.

[0075] Cationic modified starch polymers may have charge densities of approximately 0.2 meq / g to approximately 5 meq / g and approximately 0.2 meq / g to approximately 2 meq / g. Chemical modification to obtain such charge densities may involve the addition of amino and / or ammonium groups to the starch molecule. Non-limiting examples of such ammonium groups include substituents such as hydroxypropyltrimonium chloride, trimethylhydroxypropylammonium chloride, dimethylstearylhydroxypropylammonium chloride, and dimethyldodecylhydroxypropylammonium chloride. Further details are provided in Solarek, DB, Cationic Starches in Modified Starches: Properties and Uses, Wurzburg, OB, Ed., CRC Press, Inc., Boca Raton, Fla. 1986, pp. 113-125, which is incorporated herein by reference. The cationic group may be added to the starch before it is broken down to a smaller molecular weight, or it may be added after such modification.

[0076] Cationically modified starch polymers may have a degree of substitution of cationic groups of about 0.2 to about 2.5. As used herein, the “degree of substitution” of a cationically modified starch polymer is the average number of hydroxyl groups on each glucose anhydride unit that is derivatized by the substituent. Since each glucose anhydride unit has 3 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 unit. The degree of substitution is measured by proton nuclear magnetic resonance spectroscopy, which is well known in the art. 1 This can be determined using the 1H NMR method. 1Examples of 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.

[0077] The starch source before chemical modification can be selected from a variety of sources, such as tubers, legumes, cereals, and grains. For example, starch sources may include corn starch, wheat starch, rice starch, glutinous corn starch, oat starch, cassava starch, glutinous barley, waxy rice starch, glutenous rice starch, sweet rice starch, amioca, potato starch, tapioca starch, oat starch, sago starch, sweet rice, or mixtures thereof. Suitable cationic modified starch polymers may be selected from decomposed cationic corn starch, cationic tapioca, cationic potato starch, and mixtures thereof. Cationic modified starch polymers include cationic corn starch and cationic tapioca.

[0078] 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.

[0079] Cationically modified starch polymers may be included in cleansing 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 thermomechanical energy input of a processing device), or a combination thereof.

[0080] Starch can be readily dissolved in water and may form a substantially translucent solution in water. The transmittance of the composition is measured by ultraviolet-visible ("Ultra-Violet / Visible, UV / VIS") absorbance spectroscopy, which measures the absorption or transmission of UV / VIS light of the sample using a Gretag Macbeth Colorimeter Color. A light wavelength of 600 nm has been shown to be suitable for characterizing the transparency of the cleansing composition.

[0081] Cationic copolymer of acrylamide monomer and cationic monomer The cleansing composition may contain a cationic copolymer of an acrylamide monomer and a cationic monomer, the copolymer having 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 an acrylamide monomer and a cationic monomer.

[0082] Suitable cationic polymers may include the following: (i) The following acrylamide monomer of formula IX,

[0083] [ka] In the formula, R 9 H or C 1~4 It is alkyl, R 10 and R 11 H and C are independent of each other. 1~4 A selection from the group consisting of alkyl, CH2OCH3, CH2OCH2CH(CH3)2, and phenyl, or together C3~6 It is a cycloalkyl group. (ii) A cationic monomer that fits the following formula X,

[0084] [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.

[0085] A cationic monomer may fit into formula X, where k=1, v=3, and w=0, z=1, X - Cl - This forms the following structure (Equation XI).

[0086] [ka] To make it easier to understand, the above structure can be called a diquat.

[0087] A cationic monomer may fit into formula X, where v and v'' are 3, v'=1, w=1, y=1, and X - Cl - This forms the structure of equation XII below.

[0088] [ka] The structure of formula XII can be called a triquat.

[0089] The acrylamide monomer may be either acrylamide or methacrylamide.

[0090] The cationic copolymer 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.

[0091] Cationic copolymers may comprise acrylamide monomers and cationic monomers, the cationic monomers being 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.

[0092] The cationic copolymer may contain cationic monomers selected from the group consisting of 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.

[0093] Cationic copolymers can be formed from (1) copolymers of (meth)acrylamide and cationic monomers mainly composed of (meth)acrylamide, and / or cationic monomers that are stable against hydrolysis, and (2) terpolymers of (meth)acrylamide, monomers mainly composed of cationic (meth)acrylic acid esters, and monomers mainly composed of (meth)acrylamide, and / or cationic monomers that are stable against hydrolysis. Monomers mainly composed of cationic (meth)acrylic acid esters may be cationic esters of (meth)acrylic acid containing quaternary nitrogen atoms. Cationic esters of (meth)acrylic acid containing quaternary nitrogen atoms may be dialkylaminoalkyl (meth)acrylates that are quaternized at C1-C3 in the alkyl and alkylene groups. Cationic 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. Cationic esters of (meth)acrylic acid containing a quaternary nitrogen atom may be dimethylaminoethyl acrylate quaternized with alkyl halide, or with methyl chloride, benzyl chloride, or dimethyl sulfate (ADAME-Quat). When the cationic monomer is mainly (meth)acrylamide, it is dialkylaminoalkyl (meth)acrylamide quaternized at C1-C3 in the alkyl and alkylene groups, or dimethylaminopropyl acrylamide quaternized with alkyl halide, or with methyl chloride, benzyl chloride, or dimethyl sulfate.

[0094] Cationic monomers mainly composed of (meth)acrylamide may be dialkylaminoalkyl(meth)acrylamides quaternized at the C1-C3 group within the alkyl and alkylene groups. Cationic monomers mainly composed of (meth)acrylamide may be dimethylaminopropylacrylamides quaternized with alkyl halides, particularly methyl chloride, benzyl chloride, or dimethyl sulfate.

[0095] 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.

[0096] 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.

[0097] Cationic copolymers can have charge densities of approximately 1.1 meq / g to approximately 2.5 meq / g, approximately 1.1 meq / g to approximately 2.3 meq / g, approximately 1.2 meq / g to approximately 2.2 meq / g, approximately 1.2 meq / g to approximately 2.1 meq / g, approximately 1.3 meq / g to approximately 2.0 meq / g, and approximately 1.3 meq / g to approximately 1.9 meq / g.

[0098] Cationic copolymers can have molecular weights ranging from approximately 100,000 g / mol to approximately 2,000,000 g / mol, approximately 300,000 g / mol to approximately 1,800,000 g / mol, approximately 500,000 g / mol to approximately 1,600,000 g / mol, approximately 700,000 g / mol to approximately 1,400,000 g / mol, and approximately 900,000 g / mol to approximately 1,200,000 g / mol.

[0099] 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 about 1,100,000 g / mol.

[0100] Synthetic polymers Cationic polymers are i) One or more cationic monomer units, and optionally, ii) One or more monomer units having a negative charge, and / or iii) 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.

[0101] The cationic polymer may be a water-soluble or dispersible, non-crosslinked synthetic cationic polymer having the structure of the following formula XIII:

[0102] [ka] In the formula, A may be one or more of the following cationic moieties:

[0103] [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. X- is a halogen, hydroxide, alkoxide, sulfate, or alkyl sulfate.

[0104] In the above structure, the negatively charged monomer is defined by R2' being a linear or branched alkyl group of H, C1-C4, and R3 being as follows:

[0105] [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.

[0106] In the above structure, the nonionic monomer is such that R2'' is H, a linear or branched alkyl group of C1-C4, R6 is a linear or branched alkyl group, alkylaryl group, aryloxy group, alkyloxy group, or alkylaryloxy group, and β is

[0107] [ka] This is defined by the following: (wherein G' and G'' are independently O, S, or NH, and L is 0 or 1).

[0108] Suitable 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.

[0109] Further examples of suitable 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.

[0110] Suitable cationic monomers include those of formula -NR3 +Examples of quaternary monomers include those in the formula, where each R may be the same or different, a hydrogen atom, an alkyl group containing 1 to 10 carbon atoms, or a benzyl group, optionally having a hydroxyl group and containing an anion (counterion). Examples of suitable 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.

[0111] Other 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. An additional suitable cationic monomer is trimethylammonium propyl (meth)acrylamide chloride.

[0112] Examples of negatively charged monomers include alpha-ethylenically unsaturated monomers containing a phosphate or phosphonate group, alpha-ethylenically unsaturated monocarboxylic acids, monoalkyl esters of alpha-ethylenically unsaturated dicarboxylic acids, monoalkylamides of alpha-ethylenically unsaturated dicarboxylic acids, alpha-ethylenically unsaturated compounds containing a sulfonic acid group, and salts of alpha-ethylenically unsaturated compounds containing a sulfonic acid group.

[0113] 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, alpha-acrylamidomethylpropanesulfonic acid, salts of alpha-acrylamidomethylpropanesulfonic acid, 2-sulfoethyl methacrylate, salts of 2-sulfoethyl methacrylate, acrylamide-2-methylpropanesulfonic acid (AMPS), salts of acrylamide-2-methylpropanesulfonic acid, and styrenesulfonate (SS).

[0114] Examples of nonionic monomers include vinyl acetate, amides of alpha-ethylenically unsaturated carboxylic acids, esters of alpha-ethylenically unsaturated monocarboxylic acids with hydrogenated or fluorinated alcohols, polyethylene oxide (meth)acrylate (i.e., polyethoxylated (meth)acrylic acid), monoalkyl esters of alpha-ethylenically unsaturated dicarboxylic acids, monoalkylamides of alpha-ethylenically unsaturated dicarboxylic acids, vinyl nitriles, vinylamine amides, vinyl alcohols, vinylpyrrolidone, and vinyl aromatic compounds.

[0115] Other 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.

[0116] Anionic counterions (X) that associate with synthetic cationic polymers -The counterion can be any known counterion, provided that the polymer remains soluble or dispersible in water, the cleansing composition, or the coacervate phase of the cleansing composition, and that the counterion is physically and chemically compatible with the essential components of the cleansing composition, or otherwise does not excessively impair the performance, stability, or aesthetics of the product. Non-limiting examples of suitable counterions include halides (e.g., chlorine, fluorine, bromine, iodine), sulfates, and methyl sulfates.

[0117] The cationic polymers described herein may also help repair damaged hair, particularly chemically treated hair, by providing a substitute hydrophobic F layer. 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 the hair even more hydrophobic, resulting in an appearance and feel similar to untreated hair. While not bound by any particular theory, it is thought 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. This hydrophobic layer can restore the hair to a healthier state, generally similar to untreated hair. Lyotropic liquid crystals are formed by combining the synthetic cationic polymers described herein with the anionic cleansing surfactant components of the cleansing compositions described above. 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 PCT Patent Application No. 94 / 06403, incorporated by reference. The synthetic polymers described herein can be incorporated into stable cleansing compositions that provide improved conditioning performance for damaged hair.

[0118] Cationic synthetic polymers capable of forming lyotropic liquid crystals 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 is 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 2,000,000, and / or about 100,000 to about 2,000,000.

[0119] Cationic synthetic polymers that provide enhanced conditioning and adhesion properties for beneficial agents but do not necessarily form lyotropic liquid crystals may have cationic 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. The polymers also have molecular weights of about 1,000 g / mol to about 5,000,000 g / mol, about 10,000 g / mol to about 2,000,000 g / mol, and about 100,000 g / mol to about 2,000,000 g / mol.

[0120] Cationic cellulose polymer Suitable cationic polymers may be cellulose polymers. Cationic cellulose polymers may have cationic charge densities of approximately 0.2 meq / g to approximately 2.2 meq / g, approximately 0.3 meq / g to approximately 2.0 meq / g, approximately 0.4 meq / g to approximately 1.8 meq / g; approximately 0.5 meq / g to approximately 1.7 meq / g, and approximately 0.6 meq / g to approximately 1.3 meq / g. Suitable cellulose polymers include salts of hydroxyethyl cellulose reacted with trimethylammonium substituted epoxides, referred to as polyquaternium 10 in the CTFA (Conventional Technology for Chemical Adaptation), and are available from Dow / Amerchol Corp. (Edison, NJ, USA) as polymers in the LR, JR, and KG series. Other suitable types of cationic cellulose include polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryldimethylammonium substituted epoxides, referred to as polyquaternium 24 in the CTFA (Conventional Technology for Chemical Adaptation). These materials are available from Dow / Amerchol Corp. under the trade name Polymer LM-200. Other suitable types of cationic cellulose include polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted 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.

[0121] Additional cationic polymers are also listed in the CTFA Cosmetic Ingredient Dictionary, 3rd edition (edited by Estrin, Crosley, and Haynes) (The Cosmetic, Toiletry, and Fragrance Association, Inc. (Washington, DC) (1982)), which is incorporated herein by reference.

[0122] Techniques for analyzing the formation of complex coacervates are known in the art. For example, microscopic analysis of the composition at any selected dilution stage can be used to identify whether a coacervate phase has formed. Such a coacervate phase may be identifiable as an additional emulsion phase in the composition. The use of dyes may help to distinguish the coacervate phase from other insoluble phases dispersed in the composition. Further details regarding the use of cationic polymers and coacervates are disclosed in U.S. Patent No. 9,272,164, which is incorporated herein by reference.

[0123] C. Stabilizing polymer Personal cleansing compositions may contain stabilizing polymers to increase the viscosity or yield strength of the composition. Suitable stabilizing polymers can be used in personal cleansing compositions, and the personal cleansing composition may contain about 0.05% to 10% of stabilizing polymers; 0.1% to about 9% of stabilizers; about 0.4% to about 8% of stabilizing polymers; about 0.7% to about 5% of stabilizing modifiers; and about 1% to about 2.5% of stabilizing polymers. Stabilizing polymer modifiers may be polyacrylates or polyacrylamide thickeners. Stabilizing polymers may be anionic stabilizing polymers.

[0124] The personal cleansing composition may include a stabilized 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.

[0125] The stabilizing 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 / palmeta-25 acrylate copolymer, acrylic acid / acrylamidomethylpropanesulfonic acid copolymer, and acrylate / C10-C30 alkyl acrylate crosspolymer.

[0126] The stabilizing polymer may be a soluble crosslinked acrylic polymer, and a non-limiting example is a carbomer.

[0127] Stabilizing polymers can be associative polymer thickeners, 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, which may have hydrophobic substances selected from cetyl, stearyl, oleyl, and combinations thereof.

[0128] The stabilizing polymer can be used in combination with polyvinylpyrrolidone, crosslinked polyvinylpyrrolidone, and derivatives. The stabilizing polymer may also be combined with polyvinyl alcohol and its derivatives. Furthermore, the stabilizing polymer may be combined with polyethyleneimine and its derivatives.

[0129] The stabilizing polymer may be combined with alginate-based materials, and non-limiting examples include sodium alginate and propylene glycol alginate.

[0130] The stabilizing polymer can be used in combination with the polyurethane polymer, 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.

[0131] The stabilizing polymer may be combined with an associative polymer thickener, and non-limiting examples include hydrophobic modified cellulose derivatives, as well as hydrophilic moieties of repeating ethylene oxide groups with repeating units of 10-300, 30-200, and 40-150. 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.

[0132] The stabilizing polymer may be combined with derivatives including cellulose and cellulose gum, and non-limiting examples include microcrystalline cellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, ethylcellulose; nitrocellulose; cellulose sulfate; cellulose powder; and hydrophobic modified cellulose.

[0133] The stabilizing polymer may be combined with guar and guar derivatives, and non-limiting examples include hydroxypropyl guar and hydroxypropyl guar hydroxypropyltrimonium chloride.

[0134] The stabilizing polymer may be combined with polyethylene oxide, polypropylene oxide, and POE-PPO copolymer.

[0135] The stabilizing polymer may be combined with a polyalkylene glycol characterized by the following general formula:

[0136] [ka] In the formula, R is hydrogen, methyl, or a mixture thereof, preferably 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.

[0137] The stabilizing polymer may be combined with silica, and non-limiting examples include fumed silica, precipitated silica, and silicone surface-treated silica.

[0138] The stabilizing polymer may be combined with a water-swellable clay, and non-limiting examples include laponite, bentonite, montmorillonite, smectite, and hectonite.

[0139] The stabilizing 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.

[0140] The stabilizing polymer may be combined with dibenzylidenesorbitol, carrageenan, pectin, agar, quince seed (Cydonia oblonga Mill), starch (obtained from rice, corn, potatoes, wheat, etc.), starch derivatives (e.g., carboxymethyl starch, methylhydroxypropyl starch), algal extracts, dextran, succinoglucan, and prelan.

[0141] Non-limiting examples of stabilized polymers include acrylamide / ammonium acrylate copolymer (and) polyisobutene (and) polysorbate 20; acrylamide / sodium acryloyldimethyltaurate copolymer / isohexadecane / polysorbate 80; ammonium acryloyldimethyltaurate / VP copolymer; sodium acrylate / sodium acryloyldimethyltaurate 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; and Examples include ammonium acrylate / 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 stabilizing polymers include ACULYN® 28, ACULYN® 88, ACULYN® 33, ACULYN® 22, ACULYN® Excel, Carbopol® Aqua SF-1, Carbopol® ETD 2020, Carbopol® Ultrez 20, Carbopol® Ultrez 21, Carbopol® Ultrez 10, Carbopol® Ultrez 30, Carbopol® 1342, Carbopol® Aqua SF-2 polymer, Sepigel® 305, Simulgel® 600, Sepimax Zen, Carbopol® SMART1000, Rheocare® TTA, Rheomer® SC-Plus, STRUCTURE® PLUS, Aristoflex® AVC, and Stabylen. 30, and combinations thereof, are examples.

[0142] D. Suspension Wax The suspended wax contains suitable stabilizers that increase yield strength and viscosity. Examples of such materials include monoesters and / or diesters of alkylene glycols having the following formula.

[0143] [ka] In the formula, R1 is a linear or branched C12-C22 alkyl group. R is a linear or branched C2-C4 alkylene group. P is selected from H, C1-C4 alkyl, or -COR2, and R2 may be C4-C22 alkyl or C12-C22 alkyl. n = 1 to 3.

[0144] In the present invention, the long-chain fatty acid ester may have the above general structure (wherein R1 is a linear or branched C16-C22 alkyl group, R is -CH2-CH2-, P is selected from H or -COR2, and R2 may be a C4-C22 alkyl group or a C12-C22 alkyl group).

[0145] Typical examples include monoesters and / or diesters of fatty acids containing about 6 to about 22 or about 12 to about 18 carbon atoms, such as caproic acid, 2-ethylhexanoic caprylate, capric acid, lauric acid, isotridecanoic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroseric acid, linoleic acid, linolenic acid, arachidic acid, gadoleic acid, behenic acid, erucic acid, and mixtures thereof, with ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, triethylene glycol, or tetraethylene glycol.

[0146] In the present invention, ethylene glycol monostearate (EGMS) and / or ethylene glycol distearate (EGDS) and / or polyethylene glycol monostearate (PGMS) and / or polyethylene glycol distearate (PGDS) may be suspension waxes used in the composition. These materials are available from several commercial suppliers. For example, PEG6000MS® is available from Stepan and Empilan EGDS / A® is available from Albright & Wilson.

[0147] Glyceride ester compounds have traditionally been used as structuring agents for personal cleansing compositions. For example, Thixcin® R is trihydroxystearin, a commercially available hydrogenated castor oil produced by Elementis Specialtie (New Jersey) and marketed as a stabilizer and structuring agent for personal cleansing compositions. Suitable glyceride esters for personal cleansing compositions described herein may be selected from any crystalline glyceride esters that enable coacervate formation in personal cleansing compositions comprising suitable surfactants and cationic polymers. For example, a suitable glyceride ester is hydrogenated castor oil (such as trihydroxystearin or dihydroxystearin).

[0148] An example of additional crystalline glyceride esters is the substantially pure triglyceride of 12-hydroxystearic acid. 12-hydroxystearic acid is the pure form of the triglyceride of fully hydrogenated 12-hydroxy-9-cis-octadecenoic acid. As can be understood, many additional glyceride esters are possible. For example, variations in the hydrogenation process and natural changes in castor oil may allow for the production of additional suitable glyceride esters from castor oil.

[0149] Suitable glyceride esters can also be formed from a mixture of one or more glycerides. For example, a mixture of glycerides containing about 80% by weight or more of castor oil may be preferred. Other suitable mixtures include a mixture of triglycerides only, a mixture of diglycerides and triglycerides, a mixture of triglycerides, diglycerides, and monoglycerides in a limited amount, e.g., less than about 20% by weight of the mixture, or any mixture thereof containing about 20% by weight or less of the corresponding acid hydrolysis product of any of the glycerides. About 80% by weight or more of the mixture may be chemically identical to the glyceride of fully hydrogenated ricinoleic acid, i.e., the glyceride of 12-hydroxystearic acid. Hydrogenated castor oil can be modified so that a given triglyceride contains two 12-hydroxystearin moieties and one stearin moiety. Alternatively, partial hydrogenation may be used. However, poly(oxyalkylated) castor oil is unsuitable because it has an unsuitable melting point.

[0150] Examples of castor oil include glycerides, particularly triglycerides, containing a C10-C22 alkyl or alkenyl moiety having a hydroxyl group. Hydrogenation of castor oil produces hydrogenated castor oil by converting double bonds present as ricinoleyl moieties in the starting oil. These moieties are converted to ricinoleyl moieties that are saturated hydroxyalkyl moieties, e.g., hydroxystearyl. Hydrogenated castor oil (HCO) as used herein may be selected from trihydroxystearin, dihydroxystearin, and mixtures thereof. HCO can be processed in any preferred starting form, including but not limited to solids, molten materials, and mixtures thereof. Useful HCO may have the following properties: a melting point of about 40°C to about 100°C, alternatively about 65°C to about 95°C, and / or an iodine value in the range of about 0 to about 5, alternatively about 0 to about 4, and alternatively about 0 to about 2.6. The melting point of HCO can be measured using DSC (Differential Scanning Calorimetry).

[0151] Suitable HCOs include commercially available ones. A non-limiting example of a commercially available HCO suitable for use is THIXCIN-R® (registered trademark) (supplied by Elementis), which is supplied as a powder with small particles (99% by weight is smaller than 44 μm).

[0152] This invention is not intended to be limited to the use of hydrogenated castor oil. Any other suitable crystallizable glycerides may be used. In one example, the structuring agent is nearly pure triglyceride of 12-hydroxystearic acid. This molecule corresponds to the pure form of triglyceride of fully hydrogenated 12-hydroxy-9-cis-octadecenoic acid. The composition of castor oil can vary to some extent. Similarly, the hydrogenation method can also vary. Any other suitable equivalent substance may be used, such as a mixture of triglycerides in which at least about 80% by weight is derived from castor oil. Exemplary equivalent substances include those primarily comprising or consisting of triglycerides; or primarily comprising or consisting of a mixture of diglycerides and triglycerides; or primarily comprising or consisting of a mixture of triglycerides and diglycerides, and a limited amount, e.g., less than about 20% by weight of monoglycerides in the glyceride mixture; or primarily comprising or consisting of any of the aforementioned glycerides, and a limited amount, e.g., less than about 20% by weight of the corresponding acid hydrolysis product of any of the aforementioned glycerides.

[0153] The stabilization premix contains approximately 4% to 30% by weight of a 100% active stabilizer in the personal cleansing composition. In the present invention, the stabilization premix may contain approximately 15% to 25% of the stabilizer.

[0154] In the present invention, the amount of suspended wax may be about 0.01% to about 4%, about 0.1% to about 3%, about 0.5% to about 2%, and about 0.3% to about 1.5%.

[0155] E. Scalp active ingredients The present invention may also contain a scalp active ingredient, which may be an anti-dandruff active substance. The anti-dandruff active ingredient can be selected from the group consisting of pyridinethione salts, zinc carbonate, ketoconazole, econazole, and azoles such as erbiol, keratolytic agents such as selenium sulfide, particulate sulfur, and salicylic acid, and mixtures thereof. The anti-dandruff particles may be pyridinethione salts. Such anti-dandruff particles must be physically and chemically compatible with the components of the composition and must not excessively impair the stability, aesthetics, or performance of the product.

[0156] The concentration of scalp-active ingredients may range from approximately 0.1% to 10%, 2% to 5%, and 1% to 2%.

[0157] Pyridinethion particles are suitable fine particulate anti-dandruff active ingredients used in the compositions of the present invention. The anti-dandruff active ingredient may be a 1-hydroxy-2-pyridinethion salt and may be in particulate form. The concentration of pyridinethion anti-dandruff particles may range from about 0.01% to about 5% by weight of the composition, or from about 0.1% to about 3% by weight, or from about 1% to about 2% by weight. Pyridinethion salts may be formed from heavy metals such as zinc, tin, cadmium, magnesium, aluminum, and zirconium, and may generally be formed from zinc, typically a zinc salt of 1-hydroxy-2-pyridinethion (known as "zinc pyridinethion" or "zinc pyridinethione, ZPT", or zinc pyrithione), usually in platelet form. 1-hydroxy-2-pyridinethion salts, which may be in platelet particle form, may have an average particle size of up to approximately 20 microns, or up to approximately 5 microns, or up to approximately 2.5 microns. Salts formed from other cations (e.g., sodium) may also be suitable. Pyridinethion anti-dandruff active ingredients are described, for example, in U.S. Patents 2,809,971, 3,236,733, 3,753,196, 3,761,418, 4,345,080, 4,323,683, 4,379,753, and 4,470,982.

[0158] In addition to an anti-dandruff active ingredient selected from polyvalent metal salts of pyrithione, the composition may further contain one or more antifungal and / or antibacterial active ingredients. The antibacterial active ingredients may be selected from the group consisting of coal tar, sulfur, charcoal, copper pyrithione, Whitfield's ointment, Castellani's paint, aluminum chloride, gentian violet, and hydroxylpyridine, where hydroxylpyridine is piroctone olamine, octopirox (piroctone olamine), cyclopirox olamine, lilopirox, strobilurins such as MEA-hydroxyoctyloxypyridinone; azoxystrobin, and metal chelating agents such as 1,10-phenanthroline, undecylenic acid and its metal salts, potassium permanganate, selenium sulfide, sodium thiosulfate, propylene glycol, bitter orange oil, and urea. The preparation may contain griseofulvin, 8-hydroxyquinoline siloquinol, thiobendazole, thiocarbamate, haloprozin, polyene, hydroxypyridone, morpholine, benzylamine, allylamine (e.g., terbinafine), tea tree oil, clove leaf oil, coriander, palmarosa, berberine, thyme red, cinnamon oil, cinnamic aldehyde, citronellic acid, hinokitol, ihthiol pale, Sensiva SC-50, Elestab HP-100, azelaic acid, lyticase, iodopropynyl butylcarbamate (IPBC), isothiazarinone such as octylisothiazarinone, and azoles, as well as combinations thereof. The antibacterial agent may be selected from the group consisting of itraconazole, ketoconazole, selenium sulfide, coal tar, and mixtures thereof.

[0159] The azole antibacterial agent 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 antibacterial agent may be a triazole selected from the group consisting of terconazole, itraconazole, and mixtures thereof. If the azole antibacterial active ingredient is present in the composition, it is included in an amount of about 0.01% to about 5% by weight, or about 0.1% to about 3% by weight, or about 0.3% to about 2% by weight of the total weight of the composition. The azole antibacterial active ingredient may be ketoconazole. The sole antibacterial active ingredient may be ketoconazole.

[0160] The present invention may also include combinations of antibacterial active ingredients. Combinations of antibacterial active ingredients can be selected from the group consisting of octopirox and zinc pyrithione, pine tar and sulfur, salicylic acid and zinc pyrithione, salicylic acid and erbiol, zinc pyrithione and erbiol, zinc pyrithione and climbasole, octopirox and climbasole, salicylic acid and octopirox, and mixtures thereof.

[0161] The composition may contain an effective amount of zinc-containing layered material. The composition may contain about 0.001% to about 10%, or about 0.01% to about 7%, or about 0.1% to about 5%, of the total weight of the composition.

[0162] Zinc-containing layered materials may be those in which crystal growth is primarily two-dimensional. Layered structures are conventionally described not only as those in which all atoms are incorporated into well-defined layers, but also as those in which ions or molecules, known as gallery ions, exist between layers (AF Wells, "Structural Inorganic Chemistry," Clarendon Press, 1975). Zinc-containing layered materials (ZLMs) may have zinc incorporated into the layers and / or may be components of gallery ions. The following classifications of ZLMs represent relatively general examples of the overall category and are not intended to limit the scope to a broader range of materials that fit this definition.

[0163] Many zinc-containing minerals (ZLMs) exist naturally. ZLMs can be selected from the group consisting of zinc hydrochloride (zinc carbonate hydroxide), basic zinc carbonate, zinc hydrochloride (copper carbonate hydroxide), zinc malachite (zinc carbonate hydroxide), and mixtures thereof. Related minerals containing zinc may also be included in the composition. Natural ZLMs may also exist in which anionic layer species, such as clay minerals (e.g., phyllosilicate), contain ion-exchanged zinc gallery ions. All of these natural materials can be obtained by synthesis, or they can be formed in situ or during the production process in a composition.

[0164] Another common category of ZLMs, though not always, is that which are often synthetic, and is a layered double hydroxide. ZLMs are given by the formula [M 2+ 1-x M 3+ x (OH)2] x+ A m- x / m • nH2O (wherein the formula, divalent ions (M) 2+(Part or all of which are zinc ions) may be a layered double hydroxide (Crepaldi, EL, Pava, PC, Toronto, J, Valim, JB J. Colloid Interfac. Sci. 2002, 248, 429-42).

[0165] Another category of ZLMs, called hydroxy double salts, can also be prepared (Morioka, H., Tagaya, H., Karasu, M, Kadokawa, J, Chiba, K Inorg. Chem. 1999, 38, 4211-6). ZLMs are given by formula [M 2+ 1-x M 2+ 1+x (OH) 3(1-y) ] + A n- (1=3y) / n • nH2O (wherein the formula, two metal ions (M) 2+ ) may be a hydroxy double salt that matches (which may be the same or different). If the metal ion is the same and represented by zinc, the formula is simplified to [Zn 1+x (OH)2] 2x+ 2x A - The formula becomes nH2O. This latter formula represents materials such as zinc hydroxychloride and zinc hydroxynitrate (when x=0.4). ZLM can be zinc hydroxychloride and / or zinc hydroxynitrate. These also relate to zinc hydroxychloride, in which a monovalent anion is replaced by a divalent anion. Furthermore, these materials can be formed in situ in a composition or during the production process.

[0166] The composition may contain basic zinc carbonate. Commercial sources of basic zinc carbonate include basic zinc carbonate (Cater Chemicals: Bensenville, IL, USA), zinc carbonate (Shepherd Chemicals: Norwood, OH, USA), zinc carbonate (CPS Union Corp.: New York, NY, USA), zinc carbonate (Elementis Pigments: Durham, UK), and zinc carbonate AC (Bruggemann Chemical: Newtown Square, PA, USA). Basic zinc carbonate, sometimes commercially called "zinc carbonate," "zinc carbonate base," or "hydroxyzinc carbonate," is a synthetic compound made from a substance similar to natural zinc carbonate. The ideal stoichiometry is expressed as Zn5(OH)6(CO3)2, but the actual stoichiometric ratio may vary slightly, and other impurities may be incorporated into the crystal lattice.

[0167] The composition may contain a zinc-containing layered material and pyrithione or a polyvalent metal salt of pyrithione, the ratio of the zinc-containing layered material to the polyvalent metal salt of pyrithione or pyrithione being about 5:100 to about 10:1, or about 2:10 to about 5:1, or about 1:2 to about 3:1.

[0168] F. Preservatives The preservative may contain one or more preservatives. Each individual preservative may be present in amounts of about 0.1% to about 2% by weight, about 0.3% to about 1.5% by weight, or about 0.45% to about 0.75% by weight of the composition.

[0169] Non-limiting examples of preservatives may include salicylates or acids, benzoates or acids. Non-limiting examples of preservatives may include sodium salicylate, sodium benzoate, potassium salicylate, potassium benzoate, salicylic acid, benzoic acid, MEA salicylate, MEA-, TEA-salicylate, TEA-TEA benzoate, calcium salicylate, calcium benzoate, magnesium salicylate, magnesium benzoate, titanium salicylate, titanium benzoate, silver salicylate, silver benzoate, ammonium salicylate, ammonium benzoate, zinc salicylate, zinc benzoate, and combinations thereof.

[0170] Some further preferred non-limiting examples of preservatives include metal pyrithiones, organic acids (including but not limited to undecylenic acid, salicylic acid, dehydroacetic acid, and sorbic acid), glycols (including but not limited to caprylyl glycol and decline glycol), parabens, methylchloroisothiazolinone, benzyl alcohol, ethylenediaminetetraacetic acid, and combinations thereof. Examples of commercially available preservative systems are offered under trade names Geogard 111A(trademark), Geoagard 221A(trademark), Mikrokill COS(trademark), Mikrokill ECT(trademark), and Glycacil(trademark). Preferred examples of high logS water-soluble preservatives include sodium benzoate, methylisothiazolinone, DMDM ​​hydantoin, and combinations thereof.

[0171] The present invention does not necessarily include methylisothiazolinone, methylchloroisothiazolinone, 5-chloro-2-methyl-4-isothiazolin-3-one, and 2-methyl-4-isothiazolin-3-one, or a combination of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one that is commercially available as Kathon CG.

[0172] G. pH The personal cleansing composition of the present invention may have a pH of about 5 to about 7. The personal cleansing composition of the present invention may have a pH of about 5 to about 6. The personal cleansing composition of the present invention may have a pH of about 5.5 to about 6.5.

[0173] When preparing the personal cleansing composition of the present invention, citric acid can be used to increase viscosity and lower the pH of the composition.

[0174] It may be desirable for consumers to have a personal cleansing composition containing the lowest possible concentrations of ingredients. A personal cleansing composition may consist of 11 or fewer ingredients, 10 or fewer ingredients, 9 or fewer ingredients, 8 or fewer ingredients, 7 or fewer ingredients, or 6 or fewer ingredients. The minimum ingredient composition may include water, anionic surfactants, cationic polymers, amphoteric surfactants, stabilizing polymers, zinc pyrithione, preservatives, and fragrances. It is understood that fragrances may be formed from one or more materials.

[0175] H.Optional ingredients In the present invention, the personal cleansing 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 combinations thereof. The composition may contain about 0.5% to about 7% fragrance.

[0176] 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.

[0177] 1. Conditioning agent The conditioning agent of the personal cleansing 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.

[0178] Silicone conditioning agents for use in the compositions of the present invention may have viscosities of about 20 to about 2,000,000 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.

[0179] 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.

[0180] 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.

[0181] 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 micrometers. 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.

[0182] 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.

[0183] Other types 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 substances 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.

[0184] The conditioning agent of the personal cleansing composition of the present invention may further include, either alone or in combination with other conditioning agents such as silicones, at least one organic conditioning material such as an oil or a wax. The organic material may be a nonpolymer, oligomer, or polymer. It may be in the form of an oil or a 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.

[0185] 2. Emulsifier Various anionic and nonionic emulsifiers can be used in the personal cleansing 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.

[0186] 3. Chelating agents Personal cleansing 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, specifically 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.

[0187] 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%.

[0188] 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.

[0189] 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, 1-hydroxypyridinone, 2-pyridinol-N-oxide, and combinations thereof.

[0190] I. Aqueous carriers The personal cleansing composition may be in the form of a pourable liquid (under ambient conditions). Thus, such a composition typically includes a carrier, which is present in a concentration of about 40% to about 85% by weight, alternatively about 45% to about 80% by weight, or alternatively about 50% to about 75% by weight of the personal cleansing 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, unless incidentally incorporated into the composition as a trace component of other essential or optional components.

[0191] Suitable carriers for the personal cleansing 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.

[0192] J. Product form The personal cleansing composition of the present invention may be present in typical hair care formulations. The composition may be in the form of a solution, dispersion, emulsion, powder, talc, capsules, spheres, sponges, solid dosage forms, 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, and treatment products, as well as any other form that can be applied to the hair.

[0193] K. Method for preparing a cleansing composition The cleansing compositions described herein can be formed in the same way as known cleansing compositions. For example, the process for preparing a cleansing composition may include mixing together a surfactant, a cationic polymer, zinc pyrithione, and a liquid carrier to form the cleansing composition.

[0194] L. Method Viscosity measurement The viscosity of the personal cleansing composition was measured using a Brookfield RS rheometer with a cone and plate equipped with a cone C75-1, at 2s. -1 At a constant shear rate, the measurement can be performed in 3 minutes at 27°C using a 2.5 mL sample.

[0195] The personal cleansing composition of the present invention may have a viscosity greater than about 5000 cps (centipoise). The personal cleansing composition may have a viscosity of about 5000 to about 50000 cps, the personal cleansing composition may have a viscosity of about 6000 to about 15000 cps, and the personal cleansing composition may have a viscosity of about 7000 to about 10000 cps.

[0196] Antibacterial agent efficacy test The following method is based on European Pharmacopoeia 5.1.3, "Efficacy of Antimicrobial Preservation." A bacterial pool consisting of equal portions of each of K. pneumoniae, E. gergoviae, S. marcescens, S. aureus, P. aeruginosa, E. coli, and B. cepacia was inoculated into a shampoo composition and a physiological saline control, with a log ratio of 5.0-7.0. 10 A target bioburden of cfu / mL is supplied. After incubation at room temperature for 2, 7, 14, and 28 days, the inoculated composition and the saline control are diluted with modified lecithin broth (Becton Dickinson, Cat. No. 263010) + polysorbate 80. The solution is injected three times onto tryptosoy agar (Becton Dickinson, Cat. No. 255320) along with lecithin and polysorbate 80, and colony-forming units (cfus) are counted after incubation at 33°C for 1 to 3 days.

[0197] The following method is based on European Pharmacopoeia 5.1.3 "Efficacy of Antimicrobial Preservation". Yeast / mold pools consisting of equal parts of C. albicans and A. brasiliensis were inoculated into shampoo compositions and physiological saline controls, and 5.0-7.0 log 10A target bioburden of cfu / mL is supplied. After incubation at room temperature for 2, 7, 14, and 28 days, the inoculated composition and the saline control are diluted with modified lecithin broth (Becton Dickinson, Cat. No. 263010) + polysorbate 80. The solution is injected three times onto tryptosoy agar (Becton Dickinson, Cat. No. 255320) with lecithin and polysorbate 80, and colony-forming units (cfus) are counted after incubation at 33°C for 1 to 3 days.

[0198] Logarithmic decrease calculation As shown in the sample calculation below, the average microbial cfu per mL is calculated by averaging the data from the injection plates and multiplying by the dilution factor. The logarithmic decrease of microorganisms is calculated by dividing the cfu per mL of the saline control on day 2 by the cfu per mL of the composition and taking the logarithm of the quotient. 10 This is calculated by taking [a specific method]. The resulting value is the logarithmic decrease of the composition relative to the physiological saline control. Based on the variability of antibacterial efficacy tests, a difference of 0.5 or greater in logarithmic decrease between compositions is considered statistically significant.

[0199] Alternatively, another conventional method for calculating the logarithmic decline of a composition involves diluting the inoculum at inoculation, properly incubating it on growing agar, and then counting the colonies. The resulting cfu per 1 mL of inoculum is used in place of the saline control in the numerator of the formula for calculating the logarithmic decline.

[0200] Net change in logarithmic decrease calculation The net change in microbial logarithmic reduction can be calculated by subtracting the logarithmic reduction of the unpreserved control from the logarithmic reduction of the shampoo composition.

[0201] Pass / fail criteria The success criteria (pass / fail) for preservative efficacy are based on Table 5.1.3-2 "topical preparations" of the European Pharmacopoeia and are defined in the first column of each section of the results table. The logarithmic reduction requirement for bacterial inoculum is at least 2-log on day 2, 3-log on day 7, and no increase from the previous point in time on day 28. The logarithmic reduction requirement for yeast / mold inoculum is 2-log on day 14 and no increase from the previous point in time on day 28.

[0202] Calculation of the sample: Logarithmic decrease

[0203] [Table 1]

[0204]

number

[0205] Net change of logarithmic decrease

[0206] [Table 2]

[0207]

number

[0208] M.Results

[0209] [Table 3]

[0210] Source of the examples: 1.Mackam DAB ULS, supplier: Solvay 2.Hostapon SCI-85 C, supplier:Clariant 3. UCARE Polymer LR-30M, Supplier: Dow 4.Rheocare TTA, supplier: BASF 5.40% active zinc pyrithione (ZPT), supplied by Arch Chemicals. 6. Sodium Benzoate Dense NF / FCC, supplied by: Emerald Performance Materials 7. Sodium salicylate, supplied by: JQC (Huayin) Pharmaceutical Co., Ltd. 8. Anhydrous citrate, supplied by Archer Daniels Midland; concentration is adjustable to achieve the target pH.

[0211] [Table 4]

[0212] [Table 5]

[0213] Source of the examples: 1.Mackam DAB ULS, supplier: Solvay 2.Hostapon SCI-85 C, supplier:Clariant 3. UCARE Polymer LR-30M, Supplier: Dow 4.Rheocare TTA, supplier: BASF 5.40% active zinc pyrithione (ZPT), supplied by Arch Chemicals. 6. Sodium Benzoate Dense NF / FCC, supplied by: Emerald Performance Materials 7. Sodium salicylate, supplied by: JQC (Huayin) Pharmaceutical Co., Ltd. 8. Anhydrous citrate, supplied by Archer Daniels Midland; concentration is adjustable to achieve the target pH.

[0214] N. Discussion The evaluation of a product's micro-robustness involves testing the formulation through antibacterial efficacy testing and estimating its ability to reduce a wide range of microorganisms (bacteria, yeasts, and molds) over time (days 2, 7, 14, and 28) against established success criteria (pass / fail).

[0215] The initial 14-day micro-fastness test shows that low concentrations of two preservatives (Example 3) or a single preservative option (sodium benzoate, sodium salicylate) added to batches without ZPT do not meet the antibacterial efficacy test criteria (Examples 4, 5, 6, 7). The combination of ZPT and the preservative fragrance meets the success criteria (Example 8) (pass / fail). A further 28-day experiment is conducted to determine which components and combinations of components provide micro-fastness.

[0216] A 28-day antibacterial efficacy test demonstrates that the success criteria (Examples 9, 11, 12, 13, 14) (pass / fail) are met by including ZPT in the formulation at a sufficient concentration with either sodium benzoate or sodium salicylate.

[0217] E. Combinations A. A personal cleansing composition, a) One or more sulfate-free surfactants, approximately 6% to 50% b) Approximately 0.5% to 20% lauramidopropyl betaine, c) Approximately 0.1% to 10% zinc pyrithione, d) Approximately 0.05% to 3% cationic polymer, e) Approximately 0.05% to 10% of stabilized polymer, f) Contains approximately 0.1% to 2% preservatives, A personal cleansing composition having a pH of approximately 5 to 7. B. The personal cleansing composition according to paragraph A, wherein the personal cleansing composition contains approximately 0.3% to approximately 1.5% of a preservative. C. The personal cleansing composition according to paragraphs A to B, wherein the personal cleansing composition contains approximately 0.45% to approximately 0.75% of a preservative. D. Personal cleansing compositions according to paragraphs A to C, wherein the personal cleansing composition does not contain methylisothiazolinone, methylchloroisothiazolinone, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, and a combination of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one. E. The personal cleansing composition according to paragraphs A to D, wherein the personal cleansing composition has a viscosity greater than approximately 5000 cps. F. A personal cleansing composition according to paragraphs A to E, wherein one or more sulfate-free surfactants are selected from the group consisting of: sodium, ammonium, or potassium salts of isethionate; sodium, ammonium, or potassium salts of sulfonate; sodium, ammonium, or potassium salts of ethersulfonate; sodium, ammonium, or potassium salts of sulfosuccinate; sodium, ammonium, or potassium salts of sulfoacetate; sodium, ammonium, or potassium salts of glycinate; sodium, ammonium, or potassium salts of sarcosinate; sodium, ammonium, or potassium salts of glutamate; sodium, ammonium, or potassium salts of alaninate; sodium, ammonium, or potassium salts of carboxylate; sodium, ammonium, or potassium salts of taurate; sodium, ammonium, or potassium salts of phosphate ester; and combinations thereof. G. Stabilizing polymers include acrylamide / ammonium acrylate copolymer (and) polyisobutene (and) polysorbate 20; acrylamide / sodium acryloyldimethyltaurate copolymer / isohexadecane / polysorbate 80; ammonium acryloyldimethyltaurate / VP copolymer; sodium acrylate / sodium acryloyldimethyltaurate 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 / 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, sodium polyacrylate, and mixtures thereof, selected from the group consisting of these, as described in paragraphs A to F. H. A personal cleansing composition according to paragraphs A to G, wherein the preservative is selected from the group consisting of sodium salicylate, sodium benzoate, potassium salicylate, potassium benzoate, salicylic acid, benzoic acid, MEA-salicylate, MEA-benzoate, TEA-salicylate, TEA-benzoate, calcium salicylate, calcium benzoate, magnesium salicylate, magnesium benzoate, titanium salicylate, titanium benzoate, silver salicylate, silver benzoate, ammonium salicylate, ammonium benzoate, zinc salicylate, zinc benzoate, undecylenic acid, dehydroacetic acid, sorbic acid, glycol, caprylyl glycol, decline glycol, parabens, methylchloroisothiazolinone, methylisothiazolinone, benzyl alcohol, ethylenediaminetetraacetic acid, and combinations thereof. I. The personal cleansing composition described in paragraphs A to H, wherein the preservative is sodium salicylate. J. The personal cleansing composition described in paragraphs A to I, wherein the preservative is sodium benzoate. A personal cleansing composition according to paragraphs A to J, further comprising an amphoteric surfactant selected from the group consisting of K. betaine, sultaine, hydroxysultanes, amphohydroxypropyl sulfonate, alkyl amphoacetate, alkyl amphodiaacetate, and combinations thereof. L. The personal cleansing composition according to paragraphs A to K, wherein the cationic polymer is selected from the group consisting of cationic guar, cationic cellulose, cationic synthetic homopolymer, cationic synthetic copolymer, and combinations thereof. The personal cleansing composition according to paragraphs A to L, wherein the cationic polymer is selected from the group consisting of hydroxypropyltrimonium guar, polyquaternium 10, polyquaternium 6, and combinations thereof. The personal cleansing composition according to paragraphs A to M, wherein the cationic polymer is polyquaternium 10. O. The personal cleansing composition described in paragraphs A - N, wherein the pH of the composition is from about 5 to about 6. P. The personal cleansing composition described in paragraphs A - O, wherein the pH of the composition is from about 5.5 to about 6.5. Q. The personal cleansing composition described in paragraphs A - P, wherein the viscosity is from about 5000 cps to about 50000 cps. R. The personal cleansing composition described in paragraphs A - Q, wherein the composition consists of 9 or fewer components.

[0218] Other modifications of the present disclosure are within the skill of those in the art of personal cleansing formulations and can be made without departing from the spirit and scope of the invention. All parts, percentages, and ratios herein are by weight unless otherwise specified. Some components may be supplied as a diluted solution from a source. The concentrations described represent the weight percent of the active material unless otherwise specified. Also, the concentrations of fragrances and / or preservatives may be included in the following examples.

[0219] [[ID=!4]]In the examples, all concentrations are listed as weight % unless otherwise specified, and trace substances such as diluents and fillers may be excluded. Thus, the listed formulations include the listed components and any trace substances associated with such components. As will be apparent to those skilled in the art, the selection of these trace substances will vary depending on the physical and chemical properties of the specific components selected to make the personal cleansing composition.

[0220] The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value unless otherwise specified. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm".

[0221] All documents referenced herein, including cross-referenced documents or related patents or applications, are incorporated herein in their entirety by reference, unless expressly excluded or specifically limited. No reference to any document shall be deemed prior art to any invention disclosed or claimed herein, nor shall it be deemed to teach, suggest or disclose any such invention, either alone or in combination with any other reference(s). Furthermore, if 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 the term in this document shall apply.

[0222] 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. A personal cleansing composition, a) Approximately 6% to approximately 50% of one or more sulfate-free surfactants, b) Approximately 0.5% to approximately 20% lauramidopropyl betaine, c) Approximately 0.1% to approximately 10% zinc pyrithione, d) Approximately 0.05% to approximately 3% of a cationic polymer, e) Approximately 0.05% to approximately 10% of a stabilized polymer, f) Approximately 0.45% to approximately 0.75% preservatives, Includes, The aforementioned composition has a pH of approximately 5 to approximately 7. The aforementioned stabilizing polymers include acrylamide / ammonium acrylate copolymer / polyisobutene / polysorbate 20; acrylamide / sodium acryloyldimethyltaurate copolymer / isohexadecane / polysorbate 80; ammonium acryloyldimethyltaurate / VP copolymer; sodium acrylate / sodium acryloyldimethyltaurate 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; and ammonium polyacrylate. Selected from the group consisting of: nium / 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 / hydrogenated polydecene / trideceth-6, acrylamide / sodium acryloyldimethyltaurate / acrylic acid copolymer, sodium acrylate / acryloyldimethyltaurate / dimethylacrylamide, crosspolymer / isohexadecane / polysorbate 60, sodium polyacrylate, and mixtures thereof. The aforementioned preservative is sodium salicylate or sodium benzoate. The aforementioned composition consists of nine or fewer components, and The composition does not contain sulfate-based surfactants. A personal cleansing composition characterized by the following.

2. A personal cleansing composition according to claim 1, which does not contain methylisothiazolinone, methylchloroisothiazolinone, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, or a combination of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one.

3. The personal cleansing composition according to claim 1, having a viscosity greater than 5000 cps.

4. The aforementioned one or more sulfate-free surfactants Sodium, ammonium, or potassium salts of isethionate; Sodium, ammonium, or potassium salts of sulfonates; Sodium, ammonium, or potassium salts of ether sulfonates; Sodium, ammonium, or potassium salts of sulfosuccinates; Sodium, ammonium, or potassium salts of sulfoacetates; Sodium, ammonium, or potassium salts of glycinates; Sodium, ammonium, or potassium salts of sarcosinates; Sodium, ammonium, or potassium salts of glutamate; Sodium, ammonium, or potassium salts of alaninate; Sodium, ammonium, or potassium salts of carboxylates; Sodium, ammonium, or potassium salts of taurate; Sodium, ammonium, or potassium salts of phosphate esters; and These combinations A personal cleansing composition according to claim 1, selected from the group consisting of the following.

5. The personal cleansing composition according to claim 1, further comprising an amphoteric surfactant selected from the group consisting of betaine, sultaine, hydroxysultanes, amphohydroxypropyl sulfonate, alkyl amphoacetate, alkyl amphodiaacetate, and combinations thereof.

6. The personal cleansing composition according to claim 1, wherein the cationic polymer is selected from the group consisting of cationic guar, cationic cellulose, cationic synthetic homopolymer, cationic synthetic copolymer, and combinations thereof.

7. The personal cleansing composition according to claim 6, wherein the cationic polymer is selected from the group consisting of hydroxypropyltrimonium guar, polyquaternium 10, polyquaternium 6, and combinations thereof.

8. The personal cleansing composition according to claim 7, wherein the cationic polymer is polyquaternium 10.

9. The personal cleansing composition according to claim 1, wherein the pH of the composition is about 5 to about 6.

10. The personal cleansing composition according to claim 9, wherein the pH of the composition is about 5.5 to about 6.

5.

11. The personal cleaning composition according to claim 1, wherein the viscosity is approximately 5,000 cps to approximately 50,000 cps.

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