Rinse-off composition having a surfactant system substantially free of sulfate-based surfactants

Abstract

A rinse-off cleansing composition having improved viscosity. The rinse-off cleansing composition contains a surfactant system having an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant. The surfactant system is substantially free of sulfate-based surfactants.

Description

[Technical Field]

[0001] This disclosure relates to a low-irritation rinse-off composition, such as a shampoo or body wash, which contains a surfactant system that is substantially free of sulfate-based surfactants and has an appropriate viscosity for ease of use. [Background technology]

[0002] Human hair and skin can become soiled due to contact with the surrounding environment and from sebum secretion onto the skin and / or scalp surface through hair follicles. Soiled hair or skin has an unclean feel and an unattractive appearance. Applying and washing soiled hair, scalp, and skin with rinse-off compositions can restore the hair, scalp, and / or skin to a clean and attractive appearance by removing oil and other dirt. Known rinse-off compositions typically remove oil and dirt from hair using anionic surfactants.

[0003] However, some consumers may prefer rinse-off compositions that are substantially free of sulfate-based surfactants. These compositions may have relatively low viscosity, making them difficult to hold in the user's hands and / or on a washing tool and to apply to the user's hair, scalp, and / or skin.

[0004] Conventional rinse-off compositions containing sulfate-based surfactants can be thickened by adding salts and / or amphoteric surfactants such as betaine and sultaine. However, this approach is not effective for surfactant systems containing amino acid-based surfactants such as isethionate or sarcosinate and glycinate. [Overview of the project] [Problems that the invention aims to solve]

[0005] Therefore, there is a need for a rinse-off composition that cleans without the use of sulfate-based surfactants, has an appropriate viscosity that facilitates dispensing and holding by the user's hand and / or on a cleaning device, and application to the user's hair, scalp, and / or skin. [Means for solving the problem]

[0006] A rinse-off cleansing composition comprising a surfactant system containing an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant, wherein the surfactant system substantially does not contain sulfate-based surfactants. [Brief explanation of the drawing]

[0007] [Figure 1] This study demonstrates the effect of adding a nonionic co-surfactant to a surfactant system containing sodium lauroyl sarcosinate and cocamidopropyl hydroxysultaine, by increasing the mole fraction relative to the zero-shear viscosity. [Figure 2A] The zero shear viscosity as a function of pH is shown for surfactant systems containing sodium lauroyl sarcosinate and cocamidopropyl hydroxysultaine when C10OH is added. [Figure 2B] The zero shear viscosity as a function of pH is shown for surfactant systems containing sodium lauroyl sarcosinate and cocamidopropyl hydroxysultaine when C10E6 is added. [Figure 3A] The maximum viscosity is shown as a function of the cosurfactant concentration. [Figure 3B] This shows the pH shift of the maximum viscosity with respect to the cosurfactant concentration. [Modes for carrying out the invention]

[0008] It has been found that rinse-off cleansing compositions having a surfactant system substantially free of sulfate-based surfactants can exhibit improved viscosity when a nonionic co-surfactant is added to the surfactant system.

[0009] In rinse-off cleansing compositions such as shampoos and body washes, string-like micelles are often used as a rheological control mechanism due to their high viscosity and shear-reducing properties. This helps ensure easy dispensing from the container and easy dispersion onto hair, scalp, and / or skin.

[0010] A simple method for achieving string-like micelle aggregation in ionic surfactant compositions containing anionic sulfate surfactants may be to add inorganic and / or organic salts to the surfactant solution and / or liquid rinse-off composition. This may help shield the electrostatic repulsion between charged head groups, allowing the surfactant molecules to be packed more densely. Similar effects may be observed when mixing surfactants with different net charges. Examples include mixtures of cationic and anionic surfactants, and mixtures of anionic and zwitterionic surfactants.

[0011] However, these approaches are not effective for surfactant systems containing isethionate and / or amino acid-derived surfactants, which may have advantages including superior adsorption and aggregation properties, and which consumers may perceive as less irritating and more natural. It was found that adding sodium chloride (NaCl) to a model anionic amino acid-derived surfactant composition, sodium lauroyl sarcosinate (SLSar) at 15%, did not thicken the formulation until the salt concentration reached 16% (much higher than reasonably acceptable).

[0012] The formulation also did not thicken when the zwitterionic surfactant was at a neutral pH. When cocamidopropyl hydroxysultaine (CAHS) was combined with SLSar at a neutral pH, the pK of SLSar a Adjusting the pH to around 4.8–5 was found to be effective in thickening the formulation. In addition to pH titration, the thickening effect could be maximized by combining SLSar with CAHS in a 6:9 weight ratio (equivalent to a 1:1 molar ratio). It is thought that lowering the pH leads to protonation of the SLSar carboxylate group, which reduces the effective packing area and increases the packing parameter, resulting in the formation of stringy micelles. Stringy micelle formation was confirmed via cryo-TEM analysis near the maximum viscosity. However, the maximum viscosity was narrow and fixed at pH 4.8–5. Therefore, we were interested in finding alternative thickening mechanisms that shift and / or broaden the viscosity peak.

[0013] It was found that the addition of a nonionic co-surfactant could increase the viscosity of the rinse-off composition. This result was also found to be pH-sensitive. The rinse-off formulation may have a shifted and / or broadened viscosity peak, and compared to zwitterionic surfactants, formulation was easier. As discussed above, cocamidopropyl hydroxysultaine (CAHS) was combined with SLSar.

[0014] As shown in the examples and accompanying drawings (Figures 1-3) and text, the inventors further investigated the effects of various nonionic surfactants, surfactant concentrations, and pH on the viscosity of a system containing SLSar in a 6:9 weight ratio with CAHS. The addition of a nonionic co-surfactant to the SLSar / CAHS system resulted in C nExcept for the E6 co-surfactant, it was found that they increased viscosity at neutral pH. When the pH decreased, two separate effects were observed: a decrease in the magnitude of the maximum viscosity and a shift in pH. For the first effect, the more hydrophobic the co-surfactant, the higher the maximum viscosity. For the second effect, the higher the viscosity at neutral pH, the higher the pH at which the maximum viscosity occurs. Many of the nonionic surfactants tested showed promising effects and provided flexibility to the formulations. In some cases, C 12 Fatty acids were sometimes preferable.

[0015] The pH of the rinse-off cleansing composition may be 5 to 8.5, alternatively 6 to 8, or alternatively 6.5 to 7.5, according to the pH test method described below. The pH may be greater than 5, greater than 5.5, or greater than 6. The pH may be less than 8, less than 7.5, or alternatively less than 7.

[0016] As used herein, the term “fluid” includes liquids and gels.

[0017] As used herein, articles including "a" and "an" are understood to mean one or more of the claims or the things described herein when used in the claims.

[0018] As used herein, “comprising” means that other steps and other ingredients may be added, but these do not affect the final result. This term encompasses the terms “consisting of” and “consisting essentially of.”

[0019] As used herein, “mixture” means a simple combination of materials and any compounds that may result from such combinations.

[0020] As used herein, "molecular weight" or "M.Wt." refers to the weight-average molecular weight unless otherwise specified. Molecular weight is measured using the industry standard method of gel permeation chromatography ("GPC"). Molecular weight is expressed in grams per mole.

[0021] As used herein, “cleansing composition” includes personal cleansing products such as shampoos, conditioners, conditioning shampoos, shower gels, liquid hand washes, facial cleansers, and other surfactant-based liquid compositions.

[0022] As used herein, the terms “include,” “includes,” and “including” are understood to mean “comprise,” “comprises,” and “comprising,” respectively, in an unrestricted sense.

[0023] The cleansing composition may be transparent before dilution with water. As used herein, the terms “clear” or “transparent” mean that the composition has a transmittance percentage (%T) of at least 80% transmittance at 600 nm, as determined by the transparency evaluations described below. %T may be 75%–100%, 80%–100%, 85%–100%, 90%–100%, or 95%–100% at 600 nm, as determined by the transparency evaluations described below.

[0024] All percentages, parts, and ratios are based on the total weight of the compositions of the present invention unless otherwise specified. All such weights related to the listed raw materials are based on their activity levels and therefore do not include carriers or by-products that may be present in commercially available materials.

[0025] Unless otherwise noted, all component or composition levels refer to the active portion of that component or composition, excluding impurities that may be present in the commercially available source of such component or composition, such as residual solvents or by-products.

[0026] It should be understood that all maximum numerical limits given throughout this specification include all lower numerical limits as if they were explicitly stated herein. All minimum numerical limits given throughout this specification include all higher numerical limits as if they were explicitly stated herein. All numerical ranges given throughout this specification include all narrower numerical ranges that fall within such wider ranges as if they were explicitly stated herein.

[0027] Surfactant-based The rinse-off cleansing compositions described herein may contain one or more surfactants in their surfactant system. The one or more surfactants may not substantially contain sulfate surfactants. As can be understood, surfactants can provide cleansing benefits to soiled areas such as hair, skin, scalp, 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 area. In some examples, surfactants suitable for cleansing compositions may include an anionic moiety that enables the formation of coacervates with cationic polymers. Surfactants may be selected from anionic surfactants, amphoteric surfactants, zwitterionic surfactants, nonionic surfactants, and combinations thereof.

[0028] The concentration of surfactant in the composition should be sufficient to provide the desired cleansing and foaming properties. The cleansing composition may contain total surfactant levels of 6% to 50%, 5% to 35%, 10% to 50% by weight, 15% to 45% by weight, 20% to 40% by weight, 22% to 35%, and / or 25% to 30%.

[0029] Cleansing compositions typically use sulfate-based surfactants (such as, but not limited to, sodium lauryl sulfate) for foaming, stability, clarity, and their effectiveness in cleansing. Cleansing compositions described herein may be substantially sulfate-free. As used herein, “substantially sulfate-free” means containing and / or not containing sulfates in amounts of 0% to 3% by weight, alternatively 0% to 2% by weight, alternatively 0% to 1% by weight, alternatively 0% to 0.5% by weight, alternatively 0% to 0.25% by weight, alternatively 0% to 0.1% by weight, alternatively 0% to 0.05% by weight, alternatively 0% to 0.01% by weight, or alternatively 0% to 0.001% by weight. As used herein, “not containing” means 0% by weight.

[0030] Furthermore, the surfactant systems described herein may contain 0% to 1% by weight of an inorganic salt.

[0031] Anionic, zwitterionic, and amphoteric surfactants Rinse-off cleansing compositions may contain 1% to 20% by weight, alternatively 2% to 15% by weight, alternatively 3% to 10% by weight, alternatively 4% to 7% by weight, and alternatively 5% to 6% by weight of anionic surfactants. In some examples, the primary surfactant is anionic surfactant. In other examples, the anionic surfactant is not the primary surfactant.

[0032] 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.

[0033] 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.

[0034] The amino acid-based anionic surfactant may be a glutamate, such as an acyl glutamate. The composition may contain acyl glutamate levels of 2% to 22% by weight, 3% to 19% by weight, 4% to 17% by weight, and / or 5% to 15% by weight.

[0035] 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.

[0036] 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, or combinations thereof. The composition may contain acylalaninate levels of 2% to 20% by weight, 7% to 15% by weight, and / or 8% to 12% by weight.

[0037] 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.

[0038] Amino acid-based anionic surfactants can be glycinates, such as acylglycinates. Non-limiting examples of acylglycinates include sodium cocoyl glycinate, sodium lauroyl glycinate, or combinations thereof.

[0039] 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.

[0040] 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 esters of sodium sulfosuccinate, dihexyl esters of sodium sulfosuccinate, dioctyl esters of sodium sulfosuccinate, and combinations thereof. Compositions may contain sulfosuccinate levels of 2% to 22% by weight, 3% to 19% by weight, 4% to 17% by weight, and / or 5% to 15% by weight.

[0041] 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.

[0042] Non-limiting examples of sulfonates include alpha-olefin sulfonates, linear alkylbenzene sulfonates, sodium lauryl glucoside hydroxypropyl sulfonates, or combinations thereof.

[0043] Non-limiting examples of sulfoacetates include sodium lauryl sulfoacetate, ammonium lauryl sulfoacetate, or combinations thereof.

[0044] Non-limiting examples of glucose carboxylates include sodium lauryl glucoside carboxylate, sodium cocoyl glucoside carboxylate, or combinations thereof.

[0045] 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, or combinations thereof.

[0046] Non-limiting examples of acyl taurates include sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, sodium methyl oleoyl taurate, or combinations thereof.

[0047] The surfactant system may further contain one or more amphoteric surfactants, which can be selected from the group consisting of betaine, sultaine, hydroxysultanes, amphohydroxypropyl sulfonates, alkyl amphoactates, alkyl amphodiaacetates, or combinations thereof.

[0048] Examples of betaine amphoteric surfactants include cocodimethylcarboxymethyl betaine, cocoamidopropyl betaine (CAPB), cocobetaine, lauryl amidopropyl betaine (LAPB), 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.

[0049] Non-limiting examples of alkyl amphoacetates include sodium cocoyl amphoacetate, sodium lauroyl amphoacetate, or combinations thereof.

[0050] Amphoteric surfactants may include cocamidopropyl betaine (CAPB), lauramidopropyl betaine (LAPB), and combinations thereof. In other examples, amphoteric surfactants may include cocamidopropyl hydroxysultaine.

[0051] The cleansing composition may contain amphoteric surfactant levels of 0.5% to 20% by weight, 1% to 15% by weight, 2% to 13% by weight, 3% to 15% by weight, and / or 5% to 10% by weight. The cleansing composition may also contain amphoteric surfactant levels of 3% to 17% by weight, alternatively 4% to 14% by weight, alternatively 5% to 12% by weight, alternatively 6% to 10% by weight, and alternatively 7% to 9% by weight. In some examples, amphoteric surfactants may be the primary surfactant. In other examples, amphoteric surfactants are not the primary surfactant.

[0052] The surfactant system may have weight ratios of anionic surfactant to amphoteric surfactant of 1:5 to 10:1, 1:2 to 7:1, 1:1 to 5:1, and / or 2:1 to 4:1. The surfactant system may also have weight ratios of anionic surfactant to amphoteric surfactant greater than 1:1, greater than 3:2, greater than 9:5, and / or greater than 2:1.

[0053] In another example, the surfactant system may have a weight ratio of anionic surfactant to amphoteric surfactant of 2:1 to 1:10, alternatively 2:3 to 1:7, alternatively 1:2 to 1:5, or alternatively 1:3. The surfactant system may have a weight ratio of anionic surfactant to amphoteric surfactant of less than 2:1, alternatively less than 1:1, and alternatively less than 1:2.

[0054] Nonionic surfactants Rinse-off cleansing compositions may contain nonionic surfactants. Compositions may contain nonionic surfactants in amounts of 0.05% to 5% by weight, alternatively 0.1% to 4% by weight, alternatively 0.25% to 3% by weight, alternatively 0.3% to 2.5% by weight, alternatively 0.4% to 2.25% by weight, alternatively 0.5% to 2% by weight, and alternatively 0.6% to 1.9% by weight.

[0055] Generally, suitable nonionic surfactants may include compounds produced by the condensation of an alkylene oxide group (essentially hydrophilic) and an organic hydrophobic compound, which may be essentially aliphatic or alkyl aromatic. Examples of suitable nonionic surfactants may include the following. 1. Polyethylene oxide condensates of alkylphenols. For example, a condensation product of an alkylphenol having an alkyl group containing 6 to 20 carbon atoms in either a linear or branched configuration with ethylene oxide, where the ethylene oxide is present in an amount equal to 10 to 60 moles of ethylene oxide per mole of alkylphenol. 2. Derived from the condensation of ethylene oxide with a product resulting from the reaction of propylene oxide and an ethylenediamine product. 3. Condensation products of aliphatic alcohols having 8 to 18 carbon atoms in either a linear or branched configuration with ethylene oxide, for example, coconut alcohol - ethylene oxide condensates having 10 to 30 moles of ethylene oxide per mole of coconut alcohol, where the coconut alcohol fraction has 10 to 14 carbon atoms. [[ID=I]] 4. Long - chain tertiary amine oxides corresponding to the following general formula, R 8 R 9 R 10 N->O wherein R 8 contains an alkyl, alkenyl, or monohydroxyalkyl radical having 8 to 18 carbon atoms, 0 to 10 ethylene oxide moieties, and 0 to 1 glyceryl moiety, and R 9 and R 10 contain, for example, 1 to 3 carbon atoms and 0 to 1 hydroxy group such as methyl, ethyl, propyl, hydroxyethyl, or hydroxypropyl radicals. The arrow in the formula represents the presentation of a conventional semipolar bond. 5. Long - chain tertiary phosphine oxides corresponding to the following general formula, R 11 R 12 R 13 P->O wherein R 11It contains an alkyl, alkenyl, or monohydroxyalkyl radical with a chain length in the range of 8 to 18 carbon atoms, 0 to 10 ethylene oxide moieties, and 0 to 1 glyceryl moiety, R 12 and R 13 Each of these is an alkyl or monohydroxyalkyl group containing 1 to 3 carbon atoms. 6. A long-chain dialkyl sulfoxide containing one short-chain alkyl or hydroxyalkyl radical (usually methyl) with 1 to 3 carbon atoms, one hydrophobic long chain containing an alkyl, alkenyl, hydroxyalkyl, or ketoalkyl radical with 8 to 20 carbon atoms, 0 to 10 ethylene oxide moieties, and 0 to 1 glyceryl moiety. 7. Alkyl polysaccharide ("APS") surfactants, such as alkyl polyglycosides. Such surfactants are described in U.S. Patent No. 4,565,647, which is incorporated herein by reference. APS surfactants may contain a hydrophobic group having 6 to 30 carbon atoms and a polysaccharide (e.g., polyglycoside) as a hydrophilic group. Optionally, polyalkylene oxide groups may be present, bonded to the hydrophobic and hydrophilic moieties. The alkyl group (i.e., the hydrophobic moiety) may be saturated or unsaturated, branched or unbranched, and unsubstituted or substituted (e.g., with hydroxyl or cyclic rings). 8.Formula R(O)OCH2CH(OH)CH2(OCH2CH2) n This is a polyethylene glycol (PEG) glyceryl fatty acid ester, such as the OH type, where n is 5-200 or 20-100, and R is an aliphatic hydrocarbyl having 8-20 carbon atoms. 9. For example, glucoside surfactants including lauryl glucoside, coco glucoside, and decyl glucoside. 10. Certain surfactant emulsifying compounds such as laureth-4.

[0056] Specific examples of nonionic cleansing surfactants suitable for inclusion in cleansing compositions 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.

[0057] In some cases, nonionic surfactants may 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, or combinations thereof.

[0058] In some cases, nonionic surfactants are aliphatic alcohol C n OH (e.g., decanol, dodecanol), ethoxylated aliphatic alcohol C n E3 (e.g., C10 alcohol ethoxylate EO2.5, C12 alcohol ethoxylate EO3), ethoxylated aliphatic alcohol C n E6 (e.g., C10 alcohol ethoxylate EO6, C12 alcohol ethoxylate EO6.5), Alkanediol C n Diols (e.g., 1,2-decanediol, 1,2-dodecanediol, 1,2-tetradecanediol), fatty acid C n It may be an acid (e.g., lauric acid), or a combination thereof.

[0059] Examples of suitable additional detergent surfactants are described in McCutcheon's, Emulsifiers and Detergents 1989 Annual (published by MCPublishing Co.), U.S. Patents Nos. 2,438,091, 2,528,378, 2,658,072, 3,929,678, 5,104,646, 5,106,609, and 6,649,155, and U.S. Patent Application Publications 2008 / 0317698 and 2008 / 0206355, each incorporated herein by reference.

[0060] 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.

[0061] Cationic polymers may be included in the cleansing composition in amounts of 0.05% to 3% by weight, 0.075% to 2.0% by weight, or 0.1% to 1.0% by weight. Cationic polymers may have cationic charge densities of 0.9 meq / g or higher, 1.2 meq / g or higher, and 1.5 meq / g or higher. However, the cationic charge density may also be 7 meq / g or less, and alternatively, 5 meq / g or less. The charge density may be measured at the pH of the intended use of the cleansing composition (e.g., pH 3 to pH 9, or pH 4 to pH 8). The average molecular weight of cationic polymers can generally be 10,000 to 10,000,000, 50,000 to 5,000,000, 100,000 to 3,000,000, 300,000 to 3,000,000, and 100,000 to 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 with a weight-average molecular weight of 2,500,000 g / mol or less, and the cleansing composition may have additional cationic polymers of the same or different types.

[0062] Cationic guar polymer Cationic polymers can be cationic guar polymers, which are cation-substituted galactomannan (guar) gum derivatives. Suitable guar gum for guar gum derivatives can be obtained as a naturally occurring material from guar plant species. As can be understood, a 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.

[0063] Cationic guar polymers may have a weight-average molecular weight ("M.Wt.") of less than 3,000,000 g / mol and a charge density of 0.05 meq / g to 2.5 meq / g. Alternatively, cationic guar polymers may have weight-average molecular weights of less than 1,500,000 g / mol, 150,000 g / mol to 1,500,000 g / mol, 200,000 g / mol to 1,500,000 g / mol, 300,000 g / mol to 1,500,000 g / mol, and 700,000,000 g / mol to 1,500,000 g / mol. Cationic guar polymers can have charge densities of 0.2 meq / g to 2.2 meq / g, 0.3 meq / g to 2.0 meq / g, 0.4 meq / g to 1.8 meq / g, and 0.5 meq / g to 1.7 meq / g.

[0064] Cationic guar polymers may have a weight-average molecular weight of less than 1,000,000 g / mol and a charge density of 0.1 meq / g to 2.5 meq / g. Cationic guar polymers may have weight-average molecular weights of less than 900,000 g / mol, 150,000 to 800,000 g / mol, 200,000 to 700,000 g / mol, 300,000 to 700,000 g / mol, 400,000 to 600,000 g / mol, 150,000 to 800,000 g / mol, 200,000 to 700,000 g / mol, 300,000 to 700,000 g / mol, and 400,000 to 600,000 g / mol. Cationic guar polymers have charge densities of 0.2 meq / g to 2.2 meq / g, 0.3 meq / g to 2.0 meq / g, 0.4 meq / g to 1.8 meq / g, and 0.5 meq / g to 1.5 meq / g.

[0065] The cleansing composition may contain cationic guar polymer in amounts of 0.01% to less than 0.7% by weight, 0.04% to 0.55% by weight, 0.08% to 0.5% by weight, 0.16% to 0.5% by weight, 0.2% to 0.5% by weight, 0.3% to 0.5% by weight, and 0.4% to 0.5% by weight of the cleansing composition.

[0066] Cationic guar polymers can be formed from quaternary ammonium compounds conforming to the following general formula II,

[0067] [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,

[0068] [ka] Or, R 6 is one of the following halohydrin groups of general formula IV,

[0069] [ka] In the formula, R 7 These are C1-C3 alkylenes, X is chlorine or bromine, and Z is an anion such as Cl-, Br-, I-, or HSO4-.

[0070] A suitable cationic guar polymer may conform to the following general formula V:

[0071] [ka] In the formula, R 8 It is guar gum, and R 4 , R 5 , R 6 , and R 7 As defined above, Z is a halogen. A suitable cationic guar polymer may conform to the following formula VI,

[0072] [ka] In the formula, R 8It is guar gum.

[0073] 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 1.25 meq / g and a molecular weight of 500,000 g / mol; Jaguar® C-17 has a cationic charge density of 0.6 meq / g and a molecular weight of 2,200,000 g / mol; Jaguar O® has a cationic charge density of 0.8 meq / g; Hi-Care 1000 has a charge density of 0.7 meq / g and a molecular weight of 600,000 g / mol; N-Hance 3269 and N-Hance 3270 have a charge density of 0.7 meq / g and a molecular weight of 425,000 g / mol; N-Hance 3196 has a charge density of 0.8 meq / g and a molecular weight of 1,100,000 g / mol; and AquaCat CG518 has a charge density of 0.9 meq / g and a molecular weight of 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 1.1 meq / g and a molecular weight of 800,000, while N-Hance BF-17 has a charge density of 1.7 meq / g and a molecular weight of 800,000. BF-17 has a charge density of 1.7 meq / g and a molecular weight of 800,000. BF-17 has a charge density of 1.7 meq / g and a molecular weight of 800,000. BF-17 has a charge density of 1.7 meq / g and a molecular weight of 800,000. BF-17 has a charge density of 1.7 meq / g and a molecular weight of 800,000.

[0074] 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.

[0075] 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 ratio of mannose monomer to galactose monomer 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.

[0076] 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).

[0077] Non-guargalactomannan polymer derivatives may have molecular weights ranging from 1,000 g / mol to 10,000,000 g / mol and from 5,000 g / mol to 3,000,000 g / mol.

[0078] The cleansing compositions described herein may include galactomannan polymer derivatives having a cationic charge density of 0.5 meq / g to 7 meq / g. The galactomannan polymer derivatives may have a cationic charge density of 1 meq / g to 5 meq / g. The degree of substitution of cationic groups to the galactomannan structure may be sufficient to provide the required cationic charge density.

[0079] 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.

[0080] The cationic non-guargalactomannan polymer derivative formed from the above-mentioned reagents can be represented by the following general formula VII:

[0081] [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.

[0082] [ka]

[0083] 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.

[0084] Cationic non-guargalactomannan may have a mannose-to-galactose ratio greater than 4:1, a molecular weight of 100,000 g / mol to 500,000 g / mol, a molecular weight of 50,000 g / mol to 400,000 g / mol, and a cationic charge density of 1 meq / g to 5 meq / g and 2 meq / g to 4 meq / g.

[0085] The cleansing composition may contain at least 0.05% by weight of a galactomannan polymer derivative. The cleansing composition may contain 0.05% to 2% by weight of a galactomannan polymer derivative.

[0086] 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 achieve 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.

[0087] The cleansing compositions described herein may contain 0.01% to 10% by weight and / or 0.05% to 5% by weight of a cation-modified starch polymer.

[0088] The cation-modified starch polymers disclosed herein have a bound nitrogen content of 0.5% to 4%.

[0089] Cationically modified starch polymers may have molecular weights ranging from 850,000 g / mol to 15,000,000 g / mol and from 900,000 g / mol to 5,000,000 g / mol.

[0090] Cationic starch polymers can have charge densities of 0.2 meq / g to 5 meq / g and 0.2 meq / g to 2 meq / g. Chemical modification to obtain such charge densities may involve adding amino and / or ammonium groups to starch molecules. 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., CRCPress, 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.

[0091] Cationically modified starch polymers may have a cationic group substitution degree of 0.2 to 2.5. As used herein, the “substitution degree” 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 three possible hydroxyl groups available for substitution, the maximum possible substitution degree is 3. The substitution degree is expressed on a molar basis as the number of moles of substituents per mole of glucose anhydride unit. The substitution degree can be measured using 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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 ("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.

[0096] 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 1.0 meq / g to 3.0 meq / g. The cationic copolymer may be a synthetic cationic copolymer of an acrylamide monomer and a cationic monomer.

[0097] Suitable cationic polymers may include the following: (i) The following acrylamide monomer of formula IX,

[0098] [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 Selected from the group consisting of alkyl, CH2OCH3, CH2OCH2CH(CH3)2, and phenyl, or together C 3~6It is a cycloalkyl group. (ii) A cationic monomer that fits the following formula X,

[0099] [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.

[0100] 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).

[0101] [ka]

[0102] To make it easier to understand, the above structure can be called a diquat.

[0103] 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.

[0104] [ka]

[0105] The structure of formula XII can be called a triquat.

[0106] The acrylamide monomer may be either acrylamide or methacrylamide.

[0107] The cationic copolymer may be AM:TRIQUAT, which may be 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] Cationic monomers primarily composed of (meth)acrylamide may be dialkylaminoalkyl(meth)acrylamides quaternized at C1-C3 within the alkyl and alkylene groups. Cationic monomers primarily composed of (meth)acrylamide may be dimethylaminopropylacrylamides quaternized with alkyl halides, particularly methyl chloride, benzyl chloride, or dimethyl sulfate. Cationic monomers may be cationic monomers that are stable against hydrolysis. In addition to dialkylaminoalkyl(meth)acrylamides, cationic monomers that are stable against hydrolysis may be any monomer that can be considered stable against the OECD hydrolysis test. Cationic monomers may be stable against hydrolysis, and cationic monomers that are stable against hydrolysis may be selected from the group consisting of diallyldimethylammonium chloride and water-soluble cationic styrene derivatives.

[0112] 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 may be formed from acrylamide and acrylamidopropyltrimethylammonium chloride, which has a charge density of 1.0 meq / g to 3.0 meq / g.

[0113] Cationic copolymers may have charge densities of 1.1 meq / g to 2.5 meq / g, 1.1 meq / g to 2.3 meq / g, 1.2 meq / g to 2.2 meq / g, 1.2 meq / g to 2.1 meq / g, 1.3 meq / g to 2.0 meq / g, and 1.3 meq / g to 1.9 meq / g.

[0114] Cationic copolymers may have molecular weights of 100,000 g / mol to 2,000,000 g / mol, 300,000 g / mol to 1,800,000 g / mol, 500,000 g / mol to 1,600,000 g / mol, 700,000 g / mol to 1,400,000 g / mol, and 900,000 g / mol to 1,200,000 g / mol.

[0115] The cationic copolymer may be trimethylammoniopropyl methacrylamide chloride-N-acrylamide copolymer, which is known as AM:MAPTAC. AM:MAPTAC may have a charge density of 1.3 meq / g and a molecular weight of 1,100,000 g / mol. The cationic copolymer may also be AM:ATPAC. AM:ATPAC may have a charge density of 1.8 meq / g and a molecular weight of 1,100,000 g / mol.

[0116] 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.

[0117] The cationic polymer may be a water-soluble or dispersible, non-crosslinked synthetic cationic polymer having the structure of the following formula XIII:

[0118] [ka] In the formula, A may be one or more of the following cationic moieties:

[0119] [ka] In the formula, @ is an amide, alkylamide, ester, ether, alkyl, or alkylaryl. In the formula, Y is a C1-C22 alkyl, alkoxy, alkylidene, alkyl, or aryloxy. In the formula, ψ is a C1-C22 alkyl, alkyloxy, alkylaryl, or alkylaryloxy. In the formula, Z is a C1-C22 alkyl, alkyloxy, aryl, or aryloxy. In the formula, R1 is H, a linear or branched alkyl group of C1-C4, In the formula, s is 0 or 1, and n is 0 or ≥ 1. In the formula, T and R7 are C1-C22 alkyl groups. In the formula, X- is a halogen, a hydroxide, an alkoxide, a sulfate, or an alkyl sulfate.

[0120] 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:

[0121] [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.

[0122] 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

[0123] [ka] This is defined by the following: (wherein G' and G'' are independently O, S, or NH, and L is 0 or 1).

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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).

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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 International Publication 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.

[0134] Cationic synthetic polymers capable of forming lyotropic liquid crystals have cationic charge densities of 2 meq / gm to 7 meq / gm, 3 meq / gm to 7 meq / gm, and 4 meq / gm to 7 meq / gm. The cationic charge density is 6.2 meq / gm. The polymers also have molecular weights of 1,000 to 5,000,000 and / or 10,000 to 2,000,000 and / or 100,000 to 2,000,000.

[0135] Cationic synthetic polymers that provide enhanced conditioning and adhesion of beneficial agents but do not necessarily form lyotropic liquid crystals may have cationic charge densities of 0.7 meq / gm to 7 meq / gm, and / or 0.8 meq / gm to 5 meq / gm, and / or 1.0 meq / gm to 3 meq / gm. The polymers also have molecular weights of 1,000 g / mol to 5,000,000 g / mol, 10,000 g / mol to 2,000,000 g / mol, and 100,000 g / mol to 2,000,000 g / mol.

[0136] Cationic cellulose polymer Suitable cationic polymers can be cellulose polymers. Suitable cellulose polymers include salts of hydroxyethylcellulose reacted with trimethylammonium substituted epoxides, known in the CTFA as Polyquaternium 10, and available from Dwo / Amerchol Corp. (Edison, NJ, USA) as Polymer LR, JR, and KG series polymers. Other suitable cationic celluloses include polymeric quaternary ammonium salts of hydroxyethylcellulose reacted with lauryldimethylammonium substituted epoxides, known in the CTFA as Polyquaternium 24. These materials are available from Dow / Amerchol Corp. under the trade name Polymer LM-200. Other suitable cationic celluloses include polymeric quaternary ammonium salts of hydroxyethylcellulose reacted with lauryldimethylammonium substituted epoxides and trimethylammonium substituted epoxides, known 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.

[0137] Additional cationic polymers are also described 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. Techniques for analyzing the formation of complex coacervates are known in the art. For example, microscopic analysis of the composition at any selected dilution step can be used to identify whether a coacervate phase has been 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.

[0138] liquid carrier As can be understood, the rinse-off cleansing composition may preferably be in the form of a liquid that can be injected under ambient conditions. By including an appropriate amount of liquid carrier, the formation of a cleansing composition having a suitable viscosity and rheology may be facilitated. The cleansing composition may contain 20% to 95% by weight of liquid carrier and 60% to 85% by weight of liquid carrier. The liquid carrier may be an aqueous carrier such as water.

[0139] Optional components As can be understood, the cleansing compositions described herein may contain a variety of optional components to adjust the properties and characteristics of the compositions. As can be understood, suitable optional components may include any components that are well known and generally physically and chemically compatible with the essential components of the cleansing compositions described herein. The optional components should not otherwise excessively impair the stability, aesthetics, or performance of the product. The individual concentrations of the optional components may generally range from 0.001% to 10% by weight of the cleansing composition. The optional components may be further limited to those that do not impair the transparency of the translucent cleansing composition.

[0140] Suitable optional components that may be included in the cleansing composition include co-surfactants, deposition aids, conditioning agents (such as hydrocarbon oils, fatty acid esters, and silicones), anti-dandruff agents, suspending agents, viscosity modifiers, dyes, non-volatile solvents or diluents (soluble and insoluble), pearlescent agents, foaming agents, lice killers, pH adjusters, fragrances, preservatives, chelating agents, proteins, skin surfactants, sunscreens, UV absorbers, and vitamins. 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.

[0141] Conditioning agent The cleansing composition may contain a silicone conditioning agent. Suitable silicone conditioning agents may include volatile silicones, non-volatile silicones, or combinations thereof. If a silicone conditioning agent is included, it may be present in the composition in amounts of 0.01% to 10% by weight, 0.1% to 8% by weight, 0.1% to 5% by weight, and / or 0.2% to 3% by weight. 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, each of which is incorporated herein by reference. Suitable silicone conditioning agents may have viscosities of 20 centistokes ("csk") to 2,000,000 csk, 1,000 csk to 1,800,000 csk, 50,000 csk to 1,500,000 csk, and 100,000 csk to 1,500,000 csk when measured at 25°C.

[0142] Dispersed silicone conditioning agent particles may have a volume-average particle size in the range of 0.01 micrometers to 50 micrometers. When smaller particles are applied to hair, the volume-average particle size may be in the range of 0.01 to 4 micrometers, 0.01 to 2 micrometers, or 0.01 to 0.5 micrometers. When larger particles are applied to hair, the volume-average particle size is typically in the range of 5 to 125 micrometers, 10 to 90 micrometers, 15 to 70 micrometers, and / or 20 to 50 micrometers.

[0143] Further information on silicones, including sections on silicone fluids, gums, 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.

[0144] Suitable silicone emulsions for the cleansing compositions described herein include emulsions of insoluble polysiloxanes prepared in accordance with the descriptions provided in U.S. Patent No. 4,476,282 and U.S. Patent Application Publication No. 2007 / 0276087, respectively, which are incorporated herein by reference. Suitable insoluble polysiloxanes include polysiloxanes such as alpha,omegahydroxy-terminated polysiloxanes or alpha,omegaalkoxy-terminated polysiloxanes having a molecular weight in the range of 50,000 to 500,000 g / mol. The average molecular weight of the insoluble polysiloxane may be in the range of 50,000 to 500,000 g / mol. For example, the average molecular weight of insoluble polysiloxanes may be in the range of 60,000 to 400,000; 75,000 to 300,000; 100,000 to 200,000; or the average molecular weight may be 150,000 g / mol. Insoluble polysiloxanes may have an average particle size in the range of 30 nm to 10 microns. The average particle size may be, for example, in the range of 40 nm to 5 microns, 50 nm to 1 micron, 75 nm to 500 nm, or 100 nm.

[0145] Other classifications of silicones suitable for the cleansing compositions described herein include: i) silicone fluids containing silicone oils, which are fluid materials having a viscosity of less than 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.

[0146] Alternatively, the cleansing composition may be substantially silicone-free. As used herein, substantially silicone-free means 0 to 0.2% by weight.

[0147] Organic conditioning materials The conditioning agents of the cleansing compositions described herein may also include at least one organic conditioning material, such as an oil or a wax, either alone or in combination with other conditioning agents, such as the silicones described above. The organic material may be a nonpolymer, oligomer, or polymer. The organic material may be in the form of an oil or a wax and may be added to the cleansing formulation in neat or pre-emulsified form. Suitable examples of organic conditioning materials include 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 2,000,000, including CTFA names PEG-200, PEG-400, PEG-600, PEG-1000, PEG-2M, PEG-7M, PEG-14M, PEG-45M, and mixtures thereof.

[0148] emulsifier Various anionic and nonionic emulsifiers can be used in the 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.

[0149] Chelating agents The cleansing composition may also contain a chelating agent. Suitable chelating agents are those described in AE Martell & RM Smith, Critical Stability Constants, Vol. 1, Plenum Press, New York & London (1974) and AE Martell & RD Hancock, Metal Complexes in Aqueous Solution, Plenum Press, New York & London (1996), both of which are incorporated herein by reference. With respect to chelating agents, the term “salts and derivatives thereof” means salts and derivatives that contain the same functional structure (e.g., the same chemical backbone) as the referenced chelating agent and have similar or better chelating properties. This term includes alkali metals, alkaline earth metals, ammonium, substituted ammonium salts (i.e., monoethanolammonium, diethanolammonium, triethanolammonium) salts, esters of chelating agents having an acidic moiety, and mixtures thereof, in particular all sodium, potassium, or ammonium salts. The term “derivative” also includes “chelating surfactant” compounds, such as those exemplified in U.S. Patent No. 5,284,972, and large molecules containing one or more chelating groups having the same functional structure as the parent chelating agent, such as polymer EDDS (ethylenediamine disuccinic acid) disclosed in U.S. Patent No. 5,747,440. U.S. Patents No. 5,284,972 and No. 5,747,440 are incorporated herein by reference, respectively. Preferred chelating agents may further include histidine.

[0150] The level of EDDS chelating agent or histidine chelating agent in the cleansing composition may be low. For example, the EDDS chelating agent or histidine chelating agent may be included at 0.01% by weight. If it exceeds 10% by weight, formulation and / or human safety concerns may arise. The level of EDDS chelating agent or histidine chelating agent may be at least 0.01% by weight, at least 0.05% by weight, at least 0.1% by weight, at least 0.25% by weight, at least 0.5% by weight, at least 1% by weight, or at least 2% by weight of the cleansing composition.

[0151] Gel Network Cleansing compositions may also contain aliphatic alcohol gel networks. These gel networks are formed by combining aliphatic alcohols and surfactants in ratios of 1:1 to 40:1, 2:1 to 20:1, and / or 3:1 to 10:1. The formation of a gel network involves heating an aqueous dispersion of aliphatic alcohol together with a surfactant to a temperature above the melting point of the aliphatic alcohol. During this mixing process, the aliphatic alcohol melts, separating the surfactant into aliphatic alcohol droplets. The surfactant then carries water into the aliphatic alcohol along with the surfactant. This transforms the isotropic aliphatic alcohol droplets into liquid crystal phase droplets. When this mixture is cooled to a temperature below its melting point, the liquid crystal phase is converted into a solid crystalline gel network. Gel networks can offer several benefits to cleansing compositions. For example, gel networks can provide stabilization benefits to cosmetic creams and hair conditioners. In addition, gel networks can provide conditioned feel benefits to hair conditioners and shampoos.

[0152] Aliphatic alcohols may be present in the gel network at levels ranging from 0.05% to 14% by weight. For example, aliphatic alcohols may be present in amounts ranging from 1% to 10% by weight and / or 6% to 8% by weight.

[0153] Suitable aliphatic alcohols include those having 10 to 40 carbon atoms, 12 to 22 carbon atoms, 16 to 22 carbon atoms, and / or 16 to 18 carbon atoms. These aliphatic alcohols may be straight-chain or branched-chain alcohols and may be saturated or unsaturated. Non-limiting examples of aliphatic alcohols include cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof. A mixture of cetyl alcohol and stearyl alcohol in a ratio of 20:80 to 80:20 is preferred.

[0154] A gel network can be prepared by filling a container with water. The water can then be heated to 74°C. Cetyl alcohol, stearyl alcohol, and a surfactant can then be added to the heated water. After mixing, the resulting mixture can be passed through a heat exchanger and cooled to 35°C. Upon cooling, the aliphatic alcohol and surfactant can crystallize, forming a crystalline gel network. Table 1 provides the components and their respective amounts for exemplary gel network compositions.

[0155] To prepare the gel network premix shown in Table 1, water is heated to 74°C, and the amounts of aliphatic alcohol and gel network surfactant shown in Table 1 are added to it. After mixing, the mixture is passed through a mill and a heat exchanger, where it is cooled to 32°C. As a result of this cooling process, the aliphatic alcohol, gel network surfactant, and water form a crystalline gel network.

[0156] [Table 1] * In the case of anionic gel networks, the preferred gel network surfactants mentioned above include surfactants having a net negative charge, particularly sulfonates, carboxylates, and phosphates, as well as mixtures thereof.

[0157] In the case of cationic gel networks, the preferred gel network surfactants mentioned above include quaternary ammonium surfactants and mixtures thereof, and surfactants having a net positive charge.

[0158] In the case of amphoteric or zwitterionic gel networks, the preferred gel network surfactants mentioned above include surfactants having both positive and negative charges at the product's operating pH, particularly betaine, amine oxide, sultaine, amino acids, and mixtures thereof.

[0159] Beneficial agent The cleansing composition may further contain one or more beneficial agents. Exemplary beneficial agents include, but are not limited to, particles, colorants, fragrance microcapsules, gel networks, and other insoluble skin conditioning agents or hair conditioning agents such as skin silicones, and natural oils such as sunflower oil or castor oil. The beneficial agents may be selected from the group consisting of particles; colorants; fragrance microcapsules; gel networks; other insoluble skin conditioning agents or hair conditioning agents such as skin silicones, natural oils such as sunflower oil or castor oil; and mixtures thereof.

[0160] Suspension The cleansing composition may contain a suspending agent in a concentration effective for suspending a water-insoluble material in a dispersed form within the composition, or in a concentration effective for modifying the viscosity of the composition. Such concentrations range from 0.05% to 10% by weight and 0.3% to 5.0% by weight of the composition. However, as can be understood, if certain glyceride ester crystals are included, a suspending agent may not be necessary, as these crystals may act as suitable suspending or structural agents.

[0161] Suitable suspending agents include anionic and nonionic polymers. Examples include vinyl polymers, such as cross-linked acrylic polymers having the CTFA name Carbomer; cellulose derivatives and modified cellulose polymers, such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, polyvinylpyrrolidone, polyvinyl alcohol, guar gum, hydroxypropyl guar gum, xanthan gum, gum arabic, tragacanth, galactan, carob gum, guar gum, karaya gum, carrageenan, pectin, agar, and quince seeds (Cydonia oblonga). Mills, starches (rice, corn, potato, wheat), algal colloids (algal extracts), microbiological polymers, such as dextran, succinoglucan, and pulleran, starch-based polymers, such as carboxymethyl starch and methylhydroxypropyl starch, alginate-based polymers, such as sodium alginate and propylene glycol alginate, acrylate polymers, such as sodium polyacrylate, polyethyl acrylate, polyacrylamide, and polyethyleneimine, and inorganic water-soluble materials, such as bentonite, magnesium aluminum silicate, laponite, hectonite, and anhydrous silicic acid are useful herein.

[0162] Other suitable suspending agents include crystalline suspending agents that can be classified as acyl derivatives, long-chain amine oxides, and mixtures thereof. Examples of such suspending agents are described in U.S. Patent No. 4,741,855, incorporated herein by reference. Suitable suspending agents include ethylene glycol esters of fatty acids having 16 to 22 carbon atoms. The suspending agent may be ethylene glycol stearate in both monostearate and distearate forms, but may be distearate containing less than 7% monostearate. Other suitable suspending agents include alkanolamides of fatty acids having 16 to 22 carbon atoms, or alternatively 16 to 18 carbon atoms, of which suitable examples include stearate monoethanolamide, stearate diethanolamide, stearate monoisopropanolamide, and stearate monoethanolamide stearate. Other long-chain acyl derivatives include long-chain esters of long-chain fatty acids (e.g., stearyl stearate, cetyl palmitate); long-chain esters of long-chain alkanolamides (e.g., stearamide diethanolamide distearate, stearamide monoethanolamide stearate); and the aforementioned glyceryl esters. Long-chain acyl derivatives, ethylene glycol esters of long-chain carboxylic acids, long-chain amine oxides, and alkanolamides of long-chain carboxylic acids can also be used as suspending agents.

[0163] Other long-chain acyl derivatives suitable for use as suspending agents include N,N-dihydrocarbylamidebenzoic acid and its soluble salts (e.g., Na, K), and in particular, N,N-di(hydrogenated)C of this classification. 16 , C 18 Examples include taroamide benzoic acid species, which are commercially available from Stepan® Company (Northfield, Ill., USA).

[0164] Examples of long-chain amine oxides suitable for use as suspending agents include alkyldimethylamine oxides, such as stearyldimethylamine oxide.

[0165] Other suitable suspending agents include primary amines having a fatty alkyl moiety with at least 16 carbon atoms (examples include palmitamine or stearamine), and secondary amines having two fatty alkyl moieties, each having at least 12 carbon atoms (examples include dipalmitoylamine or di(hydrogenated tallow)amine). Further other suitable suspending agents include di(hydrogenated tallow)phthalamides and crosslinked maleic anhydride-methyl vinyl ether copolymers.

[0166] Other suitable suspending agents include crystalline glyceride esters. For example, in certain embodiments, a suitable glyceride ester is hydrogenated castor oil such as trihydroxystearin or dihydroxystearin. An example of an additional crystalline glyceride ester 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.

[0167] Viscosity modifier Viscosity modifiers may be used to modify the rheology of the cleansing composition. Suitable viscosity modifiers include Carbomer, which has trade names Carbopol934, Carbopol940, Carbopol950, Carbopol980, and Carbopol981, all available from BFGoodrich Company; acrylate / steareth-20 methacrylate copolymer, which has trade name ACRYSOLL22, available from Rohm and Hass; nonoxynyl hydroxyethylcellulose, which has trade name AMERCELL polymer HM-1500, available from Amerchol; methylcellulose, which has trade name BENECEL, all supplied by Hercules; hydroxyethylcellulose, which has trade name NATROSOL; hydroxypropylcellulose, which has trade name KLUCEL; cetyl hydroxyethylcellulose, which has trade name POLYSURF67; and ethylene oxide and / or propylene oxide polymers, which have trade names CARBOWAX PEG, POLYOX WASR, and UCON FLUIDS, all supplied by Amerchol. Sodium chloride may also be used as a viscosity modifier. Other suitable rheological modifiers include crosslinked acrylates, crosslinked maleic anhydride comethyl vinyl ether, hydrophobic modified associative polymers, and mixtures thereof.

[0168] Cleansing composition, 2s -1 When measured at 26.6°C using a Brookfield R / S Plus rheometer, the viscosity may range from 1 cP to 20,000 cP, or 100 cps to 15,000 cps, or 2,500 cP to 12,000 cP, or 1 cP to 5,000 cP, or 3,500 cP to 8,500 cP. cP stands for centipoise.

[0169] dispersed particles Dispersed particles known in the art may be included in the cleansing composition. When such dispersed particles are included, the particles may be incorporated at levels of 0.025% by weight or more, 0.05% by weight or more, 0.1% by weight or more, 0.25% by weight or more, and 0.5% by weight or more of the composition. However, the cleansing composition may also contain dispersed particles of 20% by weight or less, 10% by weight or less, 5% by weight or less, 3% by weight or less, and 2% by weight or less of the composition.

[0170] As can be understood, the cleansing composition may further contain optional components. For example, it may contain amino acids. Suitable amino acids include, for example, water-soluble vitamins such as vitamins B1, B2, B6, B12, C, pantothenic acid, pantothenyl ethyl ether, panthenol, biotin, and derivatives thereof; water-soluble amino acids such as asparagine, alanine, indole, glutamic acid, and salts thereof; water-insoluble vitamins such as vitamins A, D, E, and derivatives thereof; and water-insoluble amino acids such as tyrosine, tryptamine, and salts thereof.

[0171] Anti-dandruff active ingredients The shampoo composition may also contain an anti-dandruff agent. Suitable anti-dandruff agents include pyridinethione salts, azoles, selenium sulfide, particulate sulfur, and mixtures thereof. Such anti-dandruff particles must be physically and chemically compatible with the essential components of the composition and should not otherwise excessively impair the stability, aesthetics, or performance of the product. The shampoo composition may contain a cationic polymer to enhance the adhesion of the anti-dandruff active substance.

[0172] Pyridinethion salt The anti-dandruff agent may be pyridinethion particles such as 1-hydroxy-2-pyridinethion salt. The concentration of pyridinethion anti-dandruff particles may be in the range of 0.1% to 4% by weight, 0.1% to 3% by weight, and 0.3% to 2% by weight of the composition. Suitable pyridinethion salts include those formed from heavy metals such as zinc, tin, cadmium, magnesium, aluminum, and zirconium. Particularly preferred are zinc salts of 1-hydroxy-2-pyridinethion (known as "zincpyridinethion" or "ZPT"), which are plate-shaped particles with average particle sizes of 20 μm or less, 5 μm or less, and 2.5 μm or less. Salts formed from other cations such as sodium may also be suitable. Pyridinethion anti-dandruff agents are further described 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, each of which is incorporated herein by reference. When ZPT is used as an anti-dandruff particle, it is conceivable that hair growth or regeneration may be stimulated or regulated or both, hair loss may be reduced or inhibited, or hair may appear thicker or fuller.

[0173] Other antimicrobial substances In addition to an anti-dandruff active substance selected from polyvalent metal salts of pyrithione, the shampoo composition may further contain one or more antifungal or antibacterial active substances in addition to the metal pyrithione salt active substance. Suitable antimicrobial agents include coal tar, sulfur, Whitfield's ointment, Castellani ointment, aluminum chloride, gentian violet, octopirox (piroctone olamine), cyclopirox olamine, undecylenic acid and its metal salts, potassium permanganate, selenium sulfide, sodium thiosulfate, propylene glycol, bitter orange oil, urea preparations, 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, cinnamaldehyde, citronellic acid, hinokitol, ichthyol pale, Sensiva SC-50, and Elestab. Examples include HP-100, azelaic acid, licase, iodopropynyl butylcarbamate (IPBC), isothiazarinones and azoles such as octylisothiazarinone, and combinations thereof. Suitable antimicrobial agents may include itraconazole, ketoconazole, selenium sulfide, and coal tar.

[0174] Soluble anti-dandruff agent Suitable antimicrobial agents may be one material or a mixture selected from azoles such as crimbazole, ketoconazole, itraconazole, econazole, and erbiol; hydroxypyridones such as piroctone olamine, cyclopirox, rilopirox, and MEA-hydroxyoctyloxypyridinone; keratolytic agents such as salicylic acid and other hydroxy acids; strobilurins such as azoxystrobin; and metal chelating agents such as 1,10-phenanthroline. Examples of azole antibacterial agents include imidazoles such as benzimidazole, benzothiazole, bifonazole, butaconazole nitrate, crimbazole, clotrimazole, croconazole, everconazole, econazole, elbiol, fenticonazole, fluconazole, flutimazole, isoconazole, ketoconazole, lanoconazole, metronidazole, miconazole, neticonazole, omoconazole, oxiconazole nitrate, sertaconazole, sarconazole nitrate, thioconazole, thiazole, as well as triazoles such as terconazole and itraconazole, and combinations thereof. When present in a shampoo composition, soluble antimicrobial active substances may be present in amounts of 0.01% to 5% by weight, 0.5% to 6% by weight, 0.1% to 3% by weight, 0.1% to 9% by weight, 0.1% to 1.5% by weight, 0.1% to 2% by weight, and further 0.3% to 2% by weight.

[0175] Selenium sulfide Selenium sulfide is a particulate dandruff inhibitor suitable for use as an antimicrobial composition when it is included in the composition at concentrations of 0.1% to 4% by weight, 0.3% to 2.5% by weight, and 0.5% to 1.5% by weight. Selenium sulfide is generally considered to be a compound having 1 mole of selenium and 2 moles of sulfur, but its general formula is Se x S yThe structure may be a cyclic structure conforming to the equation (wherein x+y=8). The average particle size of selenium sulfide is typically less than 15 μm and less than 10 μm, as measured by a forward laser light scattering device (e.g., Malvern3600 instrument). Selenium sulfide compounds are described, for example, in U.S. Patents 2,694,668, 3,152,046, 4,089,945, and 4,885,107, each of which is incorporated herein by reference.

[0176] sulfur Sulfur can also be used as a particulate antimicrobial / anti-dandruff agent. The effective concentration of particulate sulfur is typically 1% to 4% by weight of the composition, or alternatively 2% to 4% by weight.

[0177] Keratin dissolving agent Keratin-dissolving agents such as salicylic acid may also be included in the shampoo compositions described herein.

[0178] others Additional antimicrobial agents may include extracts of tea tree, wintergreen (such as the leaves of Gaultheria procumbens), and charcoal. As can be understood, shampoo compositions may also include combinations of antimicrobial agents. Suitable combinations include octopirox and zinc pyrithione, pine tar and sulfur, salicylic acid and zinc pyrithione, octopirox and crimbazole, salicylic acid and octopirox, and mixtures thereof.

[0179] One or more stabilizers may be included. For example, one or more preservatives such as ethylene glycol distearate, citric acid, citrate, and katone, sodium benzoate, sodium salicylate, and ethylenediaminetetraacetic acid ("EDTA") may be included to improve the shelf life of the cleansing composition.

[0180] Test method Transparency evaluation Measurement of transmittance (%T) Techniques for analyzing the formation of composite coacervates are known in the art. One method for evaluating coacervate formation during dilution of a translucent or translucent composition is to measure the percentage (T%) of light transmitted through the diluted sample using a spectrophotometer. Typically, a higher level of coacervate is formed as the measured percentage (%T) value of light transmittance decreases with dilution. Diluted samples can be prepared in various weight ratios of water to composition, e.g., 2 parts water to 1 part composition (2:1), 7.5 parts water to 1 part composition (7.5:1), 16 parts water to 1 part composition (16:1), or 34 parts water to 1 part composition (34:1), and the %T can be measured for each dilution ratio sample. Examples of possible dilution ratios include 2:1, 3:1, 5:1, 7.5:1, 11:1, 16:1, 24:1, or 34:1. By averaging the %T values ​​of samples across a range of dilution ratios, it is possible to simulate and verify how much coacervate a composition will form on average when a consumer applies the composition to wet hair, lathers it, and then rinses it off. The average %T can be calculated by taking the numerical average of the individual %T measurements for the following dilution ratios: 2:1, 3:1, 5:1, 7.5:1, 11:1, 16:1, 24:1, and 34:1.

[0181] %T can be measured using ultraviolet / visible (UV / VI) spectroscopy, which determines the transmission of UV / VIS light through the sample. A light wavelength of 600 nm has been shown to be suitable for characterizing the degree of light transmittance through the sample. Typically, it is best to follow the specific instructions for the particular spectrophotometer used. Generally, the procedure for measuring transmittance percentage begins by setting the spectrophotometer to 600 nm. Then, a calibration "blank" is performed to calibrate the readout to 100 percent transmittance. Next, a single test sample is placed in a cuvette designed to fit the particular spectrophotometer, and care is taken to ensure that there are no bubbles in the sample before measuring %T with the 600 nm spectrophotometer. Alternatively, multiple samples can be measured simultaneously using a spectrophotometer such as the SpectraMax M-5, available from Molecular Devices. Multiple diluted samples can be prepared in a 96-well plate (VWR catalog number 82006-448) and then transferred to a 96-well visible flat-bottom plate (Greiner part number 655-001), ensuring that the samples are free of air bubbles. The flat-bottom plate was placed in a SpectraMax M-5 available from Molecular Devices, and %T was measured using Software Pro v.5® software.

[0182] Visual analysis and cross-polarization microscopy One day after sample preparation, the samples were visually evaluated for turbidity and phase separation. All formulations were analyzed for birefringence using cross-polarized light microscopy at 10x magnification. Liquid crystals were identified by comparison with images from Rosevear. 30、31 The generation of the liquid crystal phase was considered undesirable for the intended use of the formulation.

[0183] pH pH was measured using a Mettler Toledo® DL-67 titrator (Columbus, Ohio, USA) and a DG 111-SC glass electrode / silver chloride electrode combination (three determinations per formulation). The electrodes were calibrated using four standards including pH 1, 4, 7, and 10.

[0184] Rheology Using a Discovery HR-2 rheometer (TA Instruments®, New Castle, Delaware, USA) equipped with a 40mm flat geometric shape and a Peltier plate temperature stage set to 25°C, measurements were taken from 0.1 to 100 seconds. -1 The steady-state shear viscosity of non-precipitation formulations was investigated over the specified range. The zero shear viscosity of each formulation was obtained by fitting a modified Carreau model to experimental data using TRIOS software (see Raju, KVSKrishna, D.; Devi, GR; Reddy, PJ; Yaseen, M., Assessment of applicability of carreau, ellis, and cross models to the viscosity data of resin solutions. Journal of Applied Polymer Science 1993, 48(12), 2101-2112 (incorporated by reference)).

[0185] Steady-state and vibrational rheometric measurements were collected for samples containing tracer particles using a Discovery HR-3 rheometer (TA Instruments®) equipped with a 60mm aluminum, 2° cone, and a Peltier plate temperature stage set to 25°C. Prior to measurement, the inertia and friction of the cone geometry were corrected, and the air bearing was mapped in precision mode using TRIOS software. Flow sweep measurements were performed from 0.1 to 100 s. -1The measurements were performed over a range of 0.1–500 rad / s. Frequency sweep measurements were performed using 0.25% strain to obtain the storage modulus G' and loss modulus G''. Data with raw phase angles greater than 175° were excluded. Data from the beaded samples were compared with data from the sample without beads to confirm that viscosity was not affected by the addition of beads. [Examples]

[0186] SLSar 30% (Maprosyl® 30-B, available from Stepan®) and CAHS 43.5% (Amphosol® CS-50, available from Stepan®), each containing 6% sodium chloride, were combined in a 6:9 weight ratio and then blended with each of the nonionic co-surfactants listed in Table 2 below at a total active surfactant concentration of 15% by weight. For vibrational rheometry and DWS measurements, 0.5% by weight of 600 nm sulfate latex microspheres (available from Life Technologies, Carlsbad, California, USA) were added to the sample, and the pH was lowered to ensure homogeneous mixing. The pH was adjusted using citric acid. After equilibration overnight at room temperature, the samples were analyzed.

[0187] [Table 2] 1. Available from Sigma Aldrich® (registered trademark) (St. Louis, Missouri, USA). 2. Available from Stepan® Company (Northfield, Illinois, USA). 3. Available from Santa Cruz Biotechnology (Dallas, Texas, USA)

[0188] Figure 1 shows the mole fraction (x) relative to the zero shear viscosity (η0) of the SLSar 6 / CAHS 9 system. 共界面活性剤This shows the effect of increasing the concentration and adding a nonionic co-surfactant. All formulations had a pH of 7-8, with the exception of the C12 acid series which had a pH of 6-7.

[0189] All samples plotted in Figure 1 were visually clear and isotropic under cross-polarized light microscopy, according to the visual analysis and cross-polarized light microscopy testing methods described herein. Samples with higher co-surfactant concentrations than those plotted in Figure 1 were found to exhibit phase separation with a white lamellar phase at the top and a clear isotropic phase at the bottom. The lamellar phase was identified by a characteristic Maltese cross pattern. The pH of all samples was reduced to 6-7 C 12 Excluding the acid, the pH was 7-8, suggesting that the addition of most nonionic copranquilizers did not affect the system's pH.

[0190] C n For all systems except E6, viscosity increased as the co-surfactant concentration increased until it reached the solubility limit, at which point phase separation occurred. n Regarding E6 cosurfactants, the viscosity remains low even when the cosurfactant concentration increases, C n E6 cosurfactants may be undesirable. No phase separation was observed in the tested formulations. Diol, C n E3 and C n E6 additive is C at low cosurfactant concentrations 10 Chain and C 12 No difference in viscosity was observed between the chain and the substance. At higher cosurfactant concentrations, C 12 The chain is C n For all head groups except OH, C 10 Chain and C 14 It exhibited a higher viscosity than the chain. C n Regarding OH, C 10 OH is C at all concentrations 12 It showed a significantly higher viscosity than OH. In this example, C 10 OH > Diol ≈ C 12 Acid>C n E3>C nViscosity increased effectively in the order of E6. The transition from low viscosity to high viscosity lamellar phase with increasing cosurfactant concentration indicated an increase in packing parameters.

[0191] Figures 2A and 2B show typical graphs of zero shear viscosity (η0) as a function of pH for the SLSar 6 / CAHS 9 system. Figure 2A is C 10 It contains OH, a nonionic surfactant, and Figure 2B shows C 10 E6 contains a nonionic surfactant.

[0192] The samples plotted in Figures 2A and 2B were visually clear and isotropic under cross-polarized light microscopy, according to the visual analysis and cross-polarized light microscopy test methods described herein. At pH values ​​lower than the plotted pH values, the samples became turbid and phase separation occurred. For the SLSar 6 / CAHS 9 system without co-surfactants, the turbidity was due to SLSar acid precipitates. 10 OH and C 10 In the E6-containing sample, phase separation was observed, with a turbid lamellar phase at the top and a transparent isotropic phase at the bottom. This is C 12 Diols and C 14 The same was true for the remaining co-surfactants, excluding the diol, which showed crystallization in many samples when stored at room temperature.

[0193] The four Cs 10 Three of the OH systems showed an increase in zero-shear viscosity with decreasing pH, followed by a decrease (Figure 2A). The exception was the C system that was tested. 10 This system had the maximum amount of OH (1.875%), and without finding a maximum viscosity, it showed a decrease in viscosity with decreasing pH. The pattern in the pH-viscosity curve was similar to that of the SLSar / CAHS system without additives and C 10 It was similar to those containing OH, but the maximum viscosity and pH were shifted. 10 The addition of OH reduced the maximum viscosity, but shifted it to a higher pH.

[0194] C10 All four systems containing E6 showed lower maximum viscosity values as the additive concentration increased (Figure 2B). The pH at the maximum viscosity shifted to a lower pH compared to the C 10 OH series.

[0195] Based on Figures 2A and 2B, when a co-surfactant was added to the SLSar 6 / CAHS 9 system, two main effects were observed: a change in the magnitude of the maximum viscosity and a pH shift of this maximum value. These two effects were not directly correlated and were observed for all non-ionic co-surfactants tested.

[0196] Figure 3A shows the maximum viscosity as a function of co-surfactant concentration. Increasing the co-surfactant concentration decreased the maximum viscosity. For each type of head group, longer alkyl chains resulted in higher maximum viscosities at the same mole fraction than shorter ones, except for C n OH. The effect of the co-surfactant head group on thickening was additive-free > diol > C 12 acid > C n OH > C n E3 > C n E6 in that order. This is similar to the order in which the solubility of the additives decreases, suggesting that the more hydrophobic the co-surfactant, the higher the maximum viscosity.

[0197] Figure 3B shows the pH shift of the maximum viscosity with respect to co-surfactant concentration. Increasing the co-surfactant concentration shifted the pH to lower values C n except for E6, which shifted the pH to higher values. There was no clear trend in the pH shift among different tail lengths. The effect of the co-surfactant head group on the pH of the maximum viscosity was C n OH > C 12 acid > diol > C n E3 > additive-free > C n E6 in that order.

[0198] The rinse-off cleansing compositions illustrated in the following examples are prepared by conventional formulations and mixing methods, examples of which are described below. Unless otherwise specified, all amounts exemplified are listed as weight percentages of the active substance, excluding trace materials such as diluents, preservatives, colorant solutions, image materials, and plants. Unless otherwise specified, all percentages are based on weight.

[0199] [Table 3] † Nonionic surfactants may include decanol, as exemplified above. Compositions may include nonionic surfactants comprising decanol, dodecanol, C10 alcohol ethoxylate EO2.5, C12 alcohol ethoxylate EO3, C10 alcohol ethoxylate EO6, C12 alcohol ethoxylate EO6.5, 1,2-decanediol, 1,2-dodecanediol, 1,2-tetradecanediol, lauric acid, and combinations thereof.

[0200] When Examples A, B, and C are tested at different pH levels, as shown in Figure 2A, the viscosity-to-pH graphs are expected to appear similar to those in Figure 2A.

[0201] Examples of combinations 1. A rinse-off cleansing composition, A rinse-off cleansing composition comprising a surfactant system containing anionic surfactants, amphoteric surfactants, and nonionic surfactants, wherein the surfactant system substantially does not contain sulfate-based surfactants. 2. The rinse-off cleansing composition according to paragraph A, wherein the weight ratio of the anionic surfactant to the amphoteric surfactant is 2:1 to 1:10, preferably 2:3 to 1:7, more preferably 1:2 to 1:5. 3. The composition is 2s -1A rinse-off cleansing composition according to paragraph A or B, having a viscosity of 100 cps to 15,000 cps, preferably 2,500 cP to 12,000 cP, and more preferably 3,500 cP to 8,500 cP, as measured at 26.6°C using a Brookfield R / S Plus rheometer. 4. A rinse-off cleansing composition according to any one of paragraphs A to C, wherein the pH is greater than 5, preferably greater than 5.5, and more preferably greater than 6. 5. A rinse-off cleansing composition according to any one of paragraphs A to D, wherein the anionic surfactant is isethionate, sulfonate, ether sulfonate, sulfosuccinate, sulfoacetate, glycinate, sarcosinate, glutamate, alaninate, carboxylate, taurate, sodium, ammonium, or potassium salt of a phosphate ester, or a combination thereof. 6. A rinse-off cleansing composition according to any one of paragraphs A to E, wherein the composition substantially does not contain a surfactant selected from sodium alkyl sulfate, sodium cocoyl isethionate, sodium lauroyl sarcosinate, cocamidopropyl betaine, sodium lauroamphoacetate, cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, and mixtures thereof. 7. A rinse-off cleansing composition according to any one of paragraphs A to F, wherein the composition comprises at least one amphohydroxypropyl sulfonate selected from betaine, sultaine, hydroxysultanes, amphohydroxypropyl sulfonates, alkyl amphoactates, alkyl amphodiaacetates, or combinations thereof. 8. A rinse-off cleansing composition according to any one of paragraphs A to G, wherein the nonionic surfactant is selected from decanol, dodecanol, C10 alcohol ethoxylate EO2.5, C12 alcohol ethoxylate EO3, C10 alcohol ethoxylate EO6, C12 alcohol ethoxylate EO6.5, 1,2-decanediol, 1,2-dodecanediol, 1,2-tetradecanediol, lauric acid, and combinations thereof. 9. The rinse-off cleansing composition according to paragraph H, wherein the nonionic surfactant comprises decanol. 10. A rinse-off cleansing composition according to any one of paragraphs A to I, further comprising an antimicrobial agent selected from azole, crimbazole, ketoconazole, itraconazole, econazole, erbiol, hydroxypyridone, piroctone olamine, cyclopirox, rilopirox, MEA-hydroxyoctyloxypyridinone, a keratolytic agent, salicylic acid, a hydroxy acid, strobilurin, azoxystrobin, a metal chelating agent, 1,10-phenanthroline, and combinations thereof. 11. A rinse-off cleansing composition according to any one of paragraphs A to J, wherein the composition has a %T value greater than 80, preferably greater than 85, and more preferably greater than 90, according to a transparency evaluation test method. 12. A rinse-off cleansing composition according to any one of paragraphs A to K, wherein the inorganic salt level is 0% to 0.9% by weight, preferably 0% to 0.8% by weight, preferably 0% to 0.2% by weight.

[0202] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​listed. Instead, unless otherwise specified, each such dimension is intended to mean both the listed value and the functionally equivalent range encompassing that value. For example, a dimension disclosed as "40mm" is intended to mean "40mm".

[0203] All documents referenced herein, including all patents or patent applications that are cross-referenced or related, and all patent applications or patents on which this application claims priority or benefit thereof, are incorporated herein by reference in their entirety unless explicitly stated to be excluded or 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. 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.

[0204] 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 rinse-off cleansing composition, a) 1% to 20% by weight of an anionic surfactant containing sarcosinate, b) an amphoteric surfactant containing sultaine in an amount of 0.5% to 20% by weight, wherein the weight ratio of the anionic surfactant to the amphoteric surfactant is 2:1 to 1:1, and c) A nonionic surfactant in an amount of 0.05% to 5% by weight, selected from decanol, dodecanol, C10 alcohol ethoxylate EO2.5, C12 alcohol ethoxylate EO3, 1,2-decanediol, 1,2-dodecanediol, 1,2-tetradecanediol, lauric acid, and combinations thereof, which increases the viscosity of the composition. A rinse-off cleansing composition containing [a specific ingredient] and substantially free of sulfate-based surfactants.

2. The aforementioned composition is 2s -1 The rinse-off cleansing composition according to claim 1, wherein the viscosity is measured at 26.6°C using a Brookfield R / S Plus rheometer and has a viscosity of 100 cps to 15,000 cps.

3. The rinse-off cleansing composition according to claim 1, wherein the pH is greater than 5.

4. The rinse-off cleansing composition according to claim 1, wherein the composition substantially does not contain a surfactant selected from cocamidopropyl betaine, sodium lauroamphoacetate, cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, and mixtures thereof.

5. The rinse-off cleansing composition according to claim 1, wherein the nonionic surfactant comprises decanol.

6. The rinse-off cleansing composition according to claim 1, further comprising an azole selected from crimbazole, ketoconazole, itraconazole, econazole, and erbiol; hydroxypyridone selected from piroctone olamine, cyclopirox, rilopirox, and MEA-hydroxyoctyloxypyridinone; a keratolytic agent selected from salicylic acid and hydroxy acid; a strobilurin which is azoxystrobin; a metal chelating agent which is 1,10-phenanthroline; and an antibacterial agent selected from a combination thereof.

7. The rinse-off cleansing composition according to claim 1, wherein the composition has a %T value greater than 80 according to a transparency evaluation test method.

8. The rinse-off cleansing composition according to claim 1, wherein the inorganic salt level is 0% by weight to 0.9% by weight.

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