Aqueous hair conditioner composition containing dissolved antidandruff active

Abstract

The present invention provides hair conditioning compositions having a gel network, a soluble anti-dandruff active, and a preservative system. The preservative system can include ingredients selected from the group consisting of glycols, glycerol esters, glycerol ethers, and combinations thereof. The conditioning compositions can be free of visible crystals of the soluble anti-dandruff active.

Description

Technical Field

[0001] This invention relates to hair conditioning compositions, and more particularly to aqueous hair conditioning compositions containing dissolved anti-dandruff active ingredients and a preservative system comprising glycols and / or glycerides / ethers. Background Technology

[0002] There are various methods for conditioning hair. These methods range from applying hair conditioning agents after shampooing, such as leave-in and rinsing products, to hair conditioning shampoos that attempt to clean and condition hair with a single product. A common method for providing beneficial conditioning effects is to make the conditioning agent comprise a dispersed gel network structure, which may contain a high-melting-point aliphatic compound, at least one second component such as a cationic surfactant, and a solvent such as water.

[0003] Conditioners may be desired to contain additional active ingredients, such as anti-dandruff active ingredients, to provide additional beneficial effects to the conditioner composition. Anti-dandruff active ingredients are common in shampoo compositions but less so in conditioners. The inclusion of anti-dandruff active ingredients in a conditioner, which is typically applied after rinsing the shampoo from the hair, can be advantageous to enhance deposition on the scalp.

[0004] However, many anti-dandruff active ingredients are solid organic compounds with low solubility in water, making it difficult to dissolve them in aqueous conditioning compositions without disrupting the gel network conditioning structure. Solid organic compounds tend to form crystals in aqueous conditioning compositions, which can negatively impact product performance, appearance, and texture. For example, pyrrolidone and its salts (such as pyrrolidone ethanolamine) are known to provide beneficial anti-dandruff effects. Pyrrolidone ethanolamine is typically provided in crystalline powder form and generally has very limited solubility in aqueous hair conditioning compositions.

[0005] Therefore, there is a need for water-based hair conditioners that contain dissolved solid organic anti-dandruff active ingredients (such as pyrrolidone and its salts) without disrupting the gel network conditioning structure. Summary of the Invention

[0006] A hair conditioning composition comprising: (a) about 50% to about 95% by weight of an aqueous carrier; (b) about 0.1% to about 10% by weight of a cationic surfactant; (c) about 1.5% to about 15% by weight of a high-melting-point aliphatic compound; (d) a gel network comprising the aqueous carrier, the cationic surfactant, and the high-melting-point aliphatic compound; (e) about 0.1% to about 1.0% by weight of a soluble anti-dandruff active ingredient; and (f) a preservative system comprising about 0.3% to about 1.5% of a preservative composition selected from the group consisting of glycols, glycerides, and combinations thereof.

[0007] A hair conditioning composition comprising: (a) about 50% to about 95% by weight of an aqueous carrier; (b) about 1% to about 6% by weight of a cationic surfactant; (c) about 2% to about 8% by weight of a high-melting-point aliphatic compound selected from the group consisting of cetyl alcohol, stearyl alcohol, and combinations thereof; (d) a gel network comprising the aqueous carrier, the cationic surfactant, and the high-melting-point aliphatic compound; (e) about 0.1% to about 1.0% by weight of piroctone olamine; (f) a preservative system comprising about 0.3% to about 1.5% of a preservative composition selected from the group consisting of glycols, glycerides, glyceryl ethers, and combinations thereof; and (g) a fragrance; wherein the weight ratio of the preservative system to the fragrance is about 0.8 to about 1.5. Attached Figure Description

[0008] Although this specification concludes by the claims that specifically point out and clearly claim protection for the subject matter of the invention, it is believed that the invention will be more readily understood from the following description taken in conjunction with the accompanying drawings, wherein:

[0009] Figure 1 The image shows a photograph of the aqueous conditioner composition of Comparative Example A taken under a 10X optical microscope. The aqueous conditioner composition contains a gel network and 0.25% by weight of pyrrolidone ethanolamine.

[0010] Figure 2 The image shows a photograph of the aqueous conditioner composition of Comparative Example E taken under a 10X optical microscope. The aqueous conditioner composition contains a gel network, 0.25 wt% piroctone ethanolamine, and 1.0 wt% fragrance.

[0011] Figure 3 The image shows a photograph of the aqueous conditioner composition of Comparative Example I taken under a 10X optical microscope. The aqueous conditioner composition contains a gel network, 0.25 wt% pyrrolidone ethanolamine, and 0.6 wt% diol.

[0012] Figure 4 The image shows a photograph of the aqueous conditioner composition of Example 1 of the present invention taken under an optical microscope at 10X. The aqueous conditioner composition comprises a gel network, 0.25 wt% piroctone ethanolamine, 0.6 wt% diol and 0.70 wt% fragrance.

[0013] Figure 5 This is a photograph of the aqueous conditioner composition of Example 2 of the present invention, taken under a 10X optical microscope. The aqueous conditioner composition comprises a gel network, 0.25 wt% piroctone olamine, 0.6 wt% diol, and 1.0 wt% fragrance. Detailed Implementation

[0014] Although this specification concludes with the claims that specifically point out and clearly claim protection for the invention, it is believed that the invention will be better understood through the following description.

[0015] Hair conditioning agents are used to improve the feel, appearance, and manageability of hair. Hair conditioning compositions typically comprise a dispersed gel network structure made of a cationic surfactant, a high-melting-point aliphatic compound with a melting point greater than 25°C and, in some examples, 40°C to 85°C, and an aqueous carrier. The gel network structure is typically a layered structure, which may be an aggregate of flakes and / or vesicles that help deliver the beneficial effects of conditioning to the hair.

[0016] Conditioners may be expected to contain additional active ingredients, such as anti-dandruff active ingredients, to provide additional beneficial effects to the conditioner composition. However, many anti-dandruff active ingredients, including pyrrolidone and its salts, are solid organic compounds with low solubility in water. Therefore, anti-dandruff active ingredients may form crystals in the aqueous conditioner composition instead of dissolving and dispersing throughout the aqueous conditioner composition, which can negatively impact product performance, appearance, and texture.

[0017] Compositions selected from glycols, glycerides, and combinations thereof have been found to help dissolve solid organic compounds, including pyrrolidone and its salts. In some examples, glycols and / or glycerides can be the only composition that helps dissolve solid organic acids. However, depending on the amount of solid organic acid and / or glycols, glycerides, and combinations thereof, it may be necessary to add another material to dissolve the solid organic acid. Combinations of glycols, glycerides, and combinations thereof with fragrances have been found to further dissolve solid organic acids, such as pyrrolidone and its salts.

[0018] Another beneficial effect of glycols and / or glycerides is that they can be used both as solubilizers and in preservative systems. Glycols and / or glycerides can be attractive preservatives because some consumers expect conditioning compositions to meet certain criteria (e.g., EWG VERIFIED) in addition to providing good conditioning properties. TM Listed by Whole (Market acceptable). Diols and / or glycerides may have an EWG rating score of 3 or less and may be EWG VERIFIED. TM It may not contain Whole Any ingredient that Market lists as unacceptable, and may be The application is classified as "risk-free," while also helping to maintain antimicrobial efficacy and providing good conditioning properties.

[0019] Figure 1 Comparative Example A, containing 0.25% by weight piroctone olamine in the gel network as described in Table 1 below, is shown. The photograph clearly shows large crystals of piroctone olamine unevenly distributed throughout the conditioner. These crystals inhibit the anti-dandruff properties of the conditioner. Dissolving anti-dandruff active ingredients (such as piroctone olamine) can provide effective and consistent dandruff control throughout the shelf life of the conditioner product. Some anti-dandruff active ingredients are soluble in anionic surfactants and are commonly used in shampoos. However, it can be difficult to dissolve anti-dandruff active ingredients in conditioners that may contain cationic surfactants and fatty alcohols.

[0020] Figure 2 Comparative Example E, which contains 0.25% by weight piroctone ethanolamine in a gel network having 0.7% by weight fragrance, is shown in Table 1 below. Figure 3 Comparative Example I, which contains 0.25% by weight pyrrolidone ethanolamine in a gel network having 0.60% by weight diol, is shown in Table 2 below. Figure 2 and Figure 3 Both showed large crystals of pyroxanone ethanolamine and some gel network vesicles. Even the crystals were smaller than... Figure 1 The examples in the document are small, but Figure 2 and Figure 3 The crystals in these examples are still too large, and these comparative examples are not preferred by consumers.

[0021] Figure 4 Example 1 of the present invention, as described in Table 3 below, contains 0.25 wt% piroctone ethanolamine, a gel network, 0.6 wt% diol, and 0.7 wt% fragrance. Figure 5 Example 2 of the present invention, as described in Table 3 below, contains 0.25% by weight pyrrolidone ethanolamine, a gel network, 0.6% by weight diol, and 1% by weight fragrance. Figure 4 and Figure 5 Both compositions are shown to be conditioning agent compositions having a gel network of vesicles and without any identifiable pyrrolidone ethanolamine crystals. These compositions are consumer-acceptable.

[0022] The pH of the conditioning composition may be less than 5. Alternatively, the pH of the conditioning composition may be from about 2.5 to about 5, or alternatively from 3.5 to about 4.5. The pH may be determined using the pH testing method described below.

[0023] As used herein, when used in claims, the articles including “a” and “an” should be understood to refer to one or more substances protected or described in the claims.

[0024] As used herein, “includes / contains” means other steps and other components that may be added without affecting the final result. This term encompasses both “consisting of” and “substantially composed of”.

[0025] As used herein, the term "gel network" refers to a layered solid crystalline phase comprising at least one fatty acid as described in detail below, and at least one second surfactant and / or additional aliphatic amphiphilic compound selected from the descriptions below, as well as water and / or other suitable solvents. A layered or porous phase comprises a bilayer consisting of alternating layers of a first layer containing a fatty acid and a second surfactant and / or aliphatic amphiphilic compound and a second layer containing water or other suitable solvents.

[0026] As used herein, the terms “including,” “comprising,” and “containing” are intended to be non-restrictive and are understood to mean “having,” “possessing,” and “covering,” respectively.

[0027] As used herein, the term “free” means that 0% of the ingredient is intentionally added to the conditioning composition, or that the conditioning composition contains 0% of the ingredient by weight of the total composition, and therefore there is no detectable amount of the ingredient.

[0028] As used herein, the term “substantially free” means less than 0.5%, less than 0.3%, less than 0.1%, less than 0.05%, less than 0.01%, or less than a non-substantial amount of the said ingredient based on the total weight of the composition.

[0029] As used herein, “mixture” is intended to include simple combinations of substances and any compounds that may be produced by such combinations.

[0030] Unless otherwise stated, all percentages, parts, and ratios are based on the total weight of the compositions of the present invention. All these weights relating to the listed ingredients are based on the content of the active substance and therefore do not include carriers or byproducts that may be contained in commercially available substances.

[0031] Unless otherwise specified, all component or composition levels refer to the active portion of the component or composition and do not include impurities, such as residual solvents or byproducts, that may be present in commercially available sources of such components or compositions.

[0032] It should be understood that each maximum numerical limit given in this specification includes each lower numerical limit, as such lower numerical limits are explicitly stated herein. Each minimum numerical limit given in this specification will include each higher numerical limit, as such higher numerical limits are explicitly stated herein. Each numerical range given in this specification will include each narrower numerical range falling within such a wider numerical range, as all such narrower numerical ranges are explicitly stated herein.

[0033] cationic surfactants

[0034] The compositions of the present invention may contain cationic surfactants. In view of providing the beneficial effects of the present invention, the cationic surfactant may be included in the composition in an amount of about 0.1%, alternatively about 0.5%, alternatively about 0.8%, alternatively about 1.0%, and about 20%, alternatively about 10%, alternatively about 8.0%, alternatively about 6.0%, and alternatively about 4% by weight of the composition.

[0035] The surfactant may be water-insoluble. In this invention, "water-insoluble surfactant" means a surfactant having a solubility in water of, optionally less than 0.5 g / 100 g (excluding 0.5 g / 100 g) of water, optionally 0.3 g / 100 g of water or less, at 25°C.

[0036] The cationic surfactant may be one cationic surfactant or a mixture of two or more cationic surfactants. Alternatively, the cationic surfactant is selected from: mono-long-chain alkylamines; di-long-chain alkyl quaternary ammonium salts; mono-long-chain alkyl cationic neutralized amino acid esters; combinations of mono-long-chain alkylamines and di-long-chain alkyl quaternary ammonium salts; and combinations of mono-long-chain alkylamines and mono-long-chain alkyl cationic neutralized amino acid esters.

[0037] In some embodiments, the conditioning composition may be substantially free of or contain no cationic surfactants having quaternized ammonium salts.

[0038] Mono-long-chain alkylamines

[0039] Mono-long-chain alkylamines may include those having a long alkyl chain having alternatively 19 to 30 carbon atoms, alternatively 19 to 24 carbon atoms, alternatively 20 to 24 carbon atoms, or alternatively 20 to 22 carbon atoms. Mono-long-chain alkylamines may include mono-long-chain alkylamides. Aliphatic primary amines, aliphatic secondary amines, and aliphatic tertiary amines may be used.

[0040] Tertiary amides have about 19 to about 22 alkyl groups. Exemplary tertiary amides include: docosanoylaminopropyl dimethylamine, docosanoylaminopropyl diethylamine, docosanoylaminoethyl diethylamine, docosanoylaminoethyl dimethylamine, brassinopropylaminopropyl dimethylamine, brassinopropylaminopropyl diethylamine, brassinopropylaminoethyl diethylamine, and brassinopropylaminoethyl dimethylamine. The amines of this invention are disclosed in U.S. Patent 4,275,055 to Nachtigal et al.

[0041] In some embodiments, the conditioning composition may be substantially free of or contain no stearoylaminopropyl dimethylamine, stearoylaminopropyl diethylamine, stearoylaminoethyl diethylamine, stearoylaminoethyl dimethylamine, palmitoylaminopropyl dimethylamine, palmitoylaminopropyl diethylamine, palmitoylaminoethyl diethylamine, palmitoylaminoethyl dimethylamine, eicosanoylaminopropyl dimethylamine, eicosanoylaminopropyl diethylamine, eicosanoylaminoethyl diethylamine, eicosanoylaminoethyl dimethylamine and / or diethylaminoethyl stearamide.

[0042] These amines are used in combination with acids such as L-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, citric acid, L-glutamic acid hydrochloride, maleic acid, and mixtures thereof; alternatively, L-glutamic acid, lactic acid, and citric acid are used in a molar ratio of amine to acid of about 1:0.3 to about 1:2, or alternatively about 1:0.4 to about 1:1.

[0043] In some embodiments, the conditioner composition may be free of mono-long-chain alkyl quaternary ammonium salts.

[0044] Dimethylalkyl quaternary ammonium salts

[0045] When used, taking into account rheological stability and conditioning benefits, the di-long-chain alkyl quaternary ammonium salt is alternatively combined with the mono-long-chain alkyl quaternary ammonium salt and / or the mono-long-chain alkylamine salt in a weight ratio of 1:1 to 1:5, alternatively 1:1.2 to 1:5, or alternatively 1:1.5 to 1:4.

[0046] Dilong-chain alkyl quaternary ammonium salts may have two long alkyl chains having 12 to 30 carbon atoms, alternatively 16 to 24 carbon atoms, or alternatively 18 to 22 carbon atoms. Such dilong-chain alkyl quaternary ammonium salts may have the following formula (I):

[0047]

[0048] Where R 71 R 72 R 73 and R 74 Both of them are selected from aliphatic groups having 12 to 30 carbon atoms, alternatively 16 to 24 carbon atoms, or alternatively 18 to 22 carbon atoms, or aromatic groups, alkoxy groups, polyoxyalkylene groups, alkylamide groups, hydroxyalkyl groups, aryl or alkylaryl groups having up to about 30 carbon atoms; R 71 R 72 R 73 and R 74The remaining portion is independently selected from aliphatic groups having 1 to 8 carbon atoms, alternatively 1 to 3 carbon atoms, or aromatic groups, alkoxy groups, polyoxyalkylene groups, alkylamide groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups having more than 8 carbon atoms; and X - Salt-forming anions selected from the group consisting of: halide ions such as chloride and bromide ions, C1-C4 alkyl sulfate ions such as methyl sulfate and ethyl sulfate ions, and mixtures thereof. In addition to carbon and hydrogen atoms, aliphatic groups may also contain ether bonds and other groups such as amino groups. Longer-chain aliphatic groups (e.g., those having about 16 or more carbons) may be saturated or unsaturated. Alternatively, R 71 R 72 R 73 and R 74 Both of them are selected from alkyl groups having 12 to 30 carbon atoms, alternatively 16 to 24 carbon atoms, or alternatively 18 to 22 carbon atoms; and R 71 R 72 R 73 and R 74 The remaining portions are independently selected from CH3, C2H5, C2H4OH, CH2C6H5, and mixtures thereof. Long-chain alkyl cationic surfactants may include, for example, dialkyl(14-18)dimethylammonium chloride, ditallow alkyldimethylammonium chloride, dihydrogenated tallow alkyldimethylammonium chloride, distearate dimethylammonium chloride, and diceryldimethylammonium chloride.

[0049] High melting point aliphatic compounds

[0050] The compositions of the present invention comprise a high-melting-point aliphatic compound. In view of providing the beneficial effects of the present invention, the high-melting-point aliphatic compound may be included in the composition in an amount of about 1.0%, alternatively about 1.5%, alternatively about 2.0%, alternatively about 2.5%, alternatively about 3%, and about 30%, alternatively about 15%, alternatively about 10%, alternatively about 8.0%, and alternatively about 7% by weight of the composition.

[0051] Considering the stability of emulsions, especially gel networks, high-melting-point aliphatic compounds may have melting points of 25°C or higher, alternatively 40°C or higher, alternatively 45°C or higher, alternatively 47°C or higher, alternatively 49°C or higher. Alternatively, for ease of manufacture and emulsification, such melting points are up to about 90°C, alternatively up to about 80°C, alternatively up to about 75°C, and even alternatively up to about 71°C. In this invention, the high-melting-point aliphatic compound may be used as a single compound or as a blend or mixture of at least two high-melting-point aliphatic compounds. When used in the form of such blends or mixtures, the above melting points refer to the melting points of the blends or mixtures.

[0052] High-melting-point aliphatic compounds may be selected from the group consisting of fatty alcohols, fatty acids, and mixtures thereof. Furthermore, those skilled in the art will understand that certain compounds having certain desired carbon atoms may have melting points lower than the preferred melting points described above, depending on the number and position of the double bonds and the length and position of the branches. It is not intended that such low-melting-point compounds be included in this section. Non-limiting examples of high-melting-point compounds can be found in the “International Cosmetic Ingredient Dictionary,” 5th edition, 1993, and the “CTFA Cosmetic Ingredient Handbook,” 2nd edition, 1992.

[0053] In alternatively, fatty alcohols are used in the compositions of the present invention, among a variety of high-melting-point aliphatic compounds. The fatty alcohols may have about 14 to about 30 carbon atoms, and alternatively about 16 to about 22 carbon atoms. These fatty alcohols are saturated and may be straight-chain or branched-chain alcohols.

[0054] Fatty alcohols may include, for example, cetyl alcohol (having a melting point of about 56°C), stearyl alcohol (having a melting point of about 58°C to 59°C), docosyl alcohol (having a melting point of about 71°C), and mixtures thereof. These compounds are known to have the aforementioned melting points. However, when supplied, they typically have lower melting points because such supplies are usually mixtures of fatty alcohols with an alkyl backbone of cetyl, stearyl, brassino, or docosyl groups, exhibiting a specific alkyl chain length distribution.

[0055] Fatty alcohols can be a mixture of cetyl alcohol and stearyl alcohol.

[0056] Typically, in the mixture, the weight ratio of cetyl alcohol to stearyl alcohol is alternatively about 1:9 to 9:1, alternatively about 1:4 to about 4:1, alternatively about 1:2.3 to about 1.5:1.

[0057] To avoid excessive thickness for spreadability, when using higher amounts of total cationic surfactants and high-melting-point aliphatic compounds, the weight ratio of cetyl alcohol to stearyl alcohol in the mixture is alternatively from about 1:1 to about 4:1, alternatively from about 1:1 to about 2:1, alternatively from about 1.2:1 to about 2:1. This also provides more conditioning on damaged areas of the hair.

[0058] Aqueous carrier

[0059] The compositions of the present invention may contain an aqueous carrier. The content and type of carrier may be selected based on compatibility with other components and other desired characteristics of the product.

[0060] The carrier may include an aqueous solution of water and a lower alkyl alcohol. The lower alkyl alcohol may be a monohydric alcohol having one to six carbon atoms, alternatively ethanol and isopropanol. Alternatively, the aqueous carrier may be substantially water. Deionized water may also be used. Depending on the desired characteristics of the product, water from a natural source containing mineral cations may also be used. Typically, the compositions of the present invention contain about 40% to about 99%, alternatively about 50% to about 95%, alternatively about 70% to about 93%, and alternatively about 80% to about 92% water.

[0061] Gel Network

[0062] Gel network structures may be included in conditioning compositions to provide beneficial conditioning effects, including improved hair wetness after rinsing off the conditioner. As used herein, the term "gel network" or "gel network structure" refers to a layered or vesicular solid crystalline phase comprising at least one high-melting-point aliphatic compound (such as a fatty alcohol as detailed herein), at least one surfactant (specifically a cationic surfactant as detailed herein), and water or other suitable solvent. Layered structures, which may comprise lamellar sheets or vesicles, may comprise a bilayer consisting of a first layer comprising a high-melting-point aliphatic compound and a surfactant, alternating with a second layer comprising water or other suitable solvent. Gel networks are typically further described by GMEccleston (“Functions of Mixed Emulsifiers and Emulsifying Waxes in Dermatological Lotions and Creams”, Colloids and Surfaces A: Physiochem. and Eng. Aspects 123-124 (1997) 169-182) and GM Eccleston (“The Microstructure of Semisolid Creams”, Pharmacy International, Vol. 7, 63-70 (1986)).

[0063] The gel network can be formed from cationic surfactants, high-melting-point aliphatic compounds, and aqueous carriers. The gel network is suitable for providing a variety of conditioning benefits, such as smoothness during application to wet hair and softness and moisture on dry hair.

[0064] Alternatively, when forming a gel network structure, in order to provide the beneficial effects of improved wet conditioning, the cationic surfactant and the high-melting-point aliphatic compound may be included in a weight ratio of the cationic surfactant to the high-melting-point aliphatic compound in the range of alternatively about 1:1 to about 1:10, alternatively about 1:1.5 to about 1:7, alternatively about 1:2 to about 1:6.

[0065] Alternatively, particularly when forming a gel network, the compositions of the present invention are substantially free of anionic surfactants, taking into account the stability of the gel network. In this invention, "the composition is substantially free of anionic surfactants" means that the composition contains no anionic surfactants; or, if the composition contains anionic surfactants, the content of such anionic surfactants is very low. In this invention, if such anionic surfactants are included, the total content of such anionic surfactants is alternatively 1% or less, alternatively 0.5% or less, alternatively 0.1% or less, by weight of the composition. Most preferably, the total content of such anionic surfactants is 0% by weight of the composition.

[0066] Anti-corrosion system

[0067] Conditioning compositions may contain safe and effective preservative systems to prevent microbial growth under normal storage and use conditions. Common preservatives in conditioning products may include isothiazolinones (including methylisothiazolinone and mixtures of methylisothiazolinone and methylchloroisothiazolinone, which can be used as Kathon) TM Purchased from ), para-hydroxybenzoates (including Methylparaben, propylparaben, butylparaben, and phenoxyethanol can be used as Optiphen TM and Optiphen TM Plus purchased from Ashland TM ), benzyl alcohol, phenoxyethanol and ethylenediaminetetraacetic acid (EDTA) and their salts, including disodium EDTA, disodium calcium EDTA and tetrasodium EDTA.

[0068] Some consumers may want a preservative system to meet at least one, two, or all three of the following criteria while maintaining antimicrobial efficacy and product performance:

[0069] EWG VERIFIED TM (As of November 25, 2019, according to the standard) In addition to the other standards described in EWG Licensing Standards: Personal Care Products (2019), it includes compliance with the Environmental Working Group (EWG) standards, including avoiding EWG-related ingredients, having fully transparent labeling, and using good manufacturing practices.

[0070] ·Excluding Whole Any ingredient listed as unacceptable in its Premium Body Care Unacceptable Ingredients (July 2018)

[0071] · Application classified as "risk-free" (green dot) (March 2019)

[0072] Sodium benzoate preservatives can meet these standards. However, using sodium benzoate as the sole preservative may not produce a conditioning product that effectively inhibits microbial growth while maintaining the smooth, creamy consistency desired by consumers. See U.S. applications 62 / 942,209 and 62 / 942,208, which are incorporated herein by reference.

[0073] A preservative system containing sodium benzoate and a second preservative composition selected from glycols, glycerides, and combinations thereof, containing all components with an EWG rating score equal to or less than 3, may be EWG VERIFIED. TM It may not contain Whole Any ingredient that Market lists as unacceptable, and may be The application is classified as "risk-free" while maintaining antimicrobial efficacy and providing good conditioning properties. In some examples, the preservative system and / or conditioning agent may also meet COSMOS standards (January 1, 2019). The preservative composition may contain glycols and / or glycerides. Both glycols and glycerides have two -OH groups on their molecules. Non-limiting examples of glycols may include butanediol, pentanediol, hexanediol, 1,2-hexanediol, octanediol, decanediol (1,2-decanediol), and mixtures thereof. In one example, the glycol may be octanediol. Non-limiting examples of glycerides may include glyceryl caprylate, glyceryl capate, undecenoic acid glyceride, and mixtures thereof. Non-limiting examples of glyceryl ethers may include ethylhexylglycerin, caprylyl glyceryl ether, glyceryl capryl ether, and mixtures thereof.

[0074] Conditioner compositions and / or preservative systems may be free of or substantially free of certain preservatives, particularly those that do not meet one or more criteria, such as ethylenediaminetetraacetic acid (EDTA) and its salts, isothiazolinones (including 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one (which can be used as Kathon) TM CG from Commercially available), benzyl alcohol, phenoxyethanol, cyclohexylglycerol and / or p-hydroxybenzoate.

[0075] The conditioning composition may contain about 0.2% by weight to about 2.25% by weight of a preservative system, alternatively about 0.4% by weight to about 2.0% by weight of a preservative system, alternatively about 0.6% by weight to about 1.75% by weight of a preservative system, alternatively about 0.7% by weight to about 1.50% by weight of a preservative system, alternatively about 0.8% by weight to about 1.30% by weight of a preservative system, and alternatively about 0.95% by weight to about 1.25% by weight of a preservative system.

[0076] The conditioning composition may contain about 0.05% by weight to about 0.8% by weight of sodium benzoate, alternatively about 0.1% by weight to about 0.5% by weight of sodium benzoate, alternatively about 0.2% by weight to about 0.4% by weight of sodium benzoate, and alternatively about 0.22% by weight to about 0.3% by weight of sodium benzoate. The conditioning composition may contain sodium benzoate, and may contain less than 2% by weight of sodium benzoate, alternatively less than 1.5% by weight of sodium benzoate, alternatively less than 1% by weight of sodium benzoate, alternatively less than 0.8% by weight of sodium benzoate, alternatively less than 0.6% by weight of sodium benzoate, alternatively less than 0.5% by weight of sodium benzoate, alternatively less than 0.4% by weight of sodium benzoate, and alternatively less than 0.3% by weight of sodium benzoate.

[0077] The anticorrosive system may contain about 5% to about 50% sodium benzoate by weight of the anticorrosive system, alternatively about 10% to about 40% sodium benzoate by weight of the anticorrosive system, and about 15% to about 30% sodium benzoate by weight of the anticorrosive system.

[0078] The conditioning composition may comprise about 0.2 wt% to about 2.0 wt%, alternatively about 0.3 wt% to about 1.75 wt%, alternatively about 0.4 wt% to about 1.70 wt%, alternatively about 0.5 wt% to about 1.65 wt%, alternatively about 0.55 wt% to about 1.60 wt%, and alternatively about 0.60 wt% to about 1.50 wt% of diols, glycerides, and combinations thereof. If the conditioning composition contains excessive amounts of diols and / or glycerides (e.g., more than 2%), the gel network structure may be disrupted, and the conditioning agent will not have consumer-acceptable rheological and / or properties.

[0079] The preservative system may contain about 50% to about 100%, alternatively about 60% to about 95%, alternatively about 65% to about 90%, and alternatively about 70% to about 85% of diols and / or glycerides by weight of the preservative system.

[0080] The preservative composition (e.g., glycol, glycerides, and combinations thereof) to the fragrance can be in a weight ratio of about 0.1 to about 10, alternatively about 0.2 to about 8, alternatively about 0.2 to about 5, alternatively about 0.3 to about 5, alternatively about 0.5 to about 2, alternatively about 0.6 to about 1.8, alternatively about 0.8 to about 1.5, alternatively about 0.85 to about 1.25.

[0081] spices

[0082] The conditioning compositions disclosed herein may contain fragrances, which may be referred to as fragrance harmonizers. The fragrances may be suitable for application to hair or skin.

[0083] The conditioning composition may contain flavorings in amounts of about 0.1% to about 5% by weight, alternatively about 0.2% to about 3% by weight, alternatively about 0.3% to about 4% by weight, alternatively about 0.4% to about 2.5% by weight, alternatively about 0.5% to about 2% by weight, alternatively about 0.6% to about 1.5% by weight, alternatively about 0.6% to about 1.2% by weight, and alternatively about 0.7% to about 1% by weight.

[0084] A variety of chemicals are known to be used for fragrance (i.e., perfume) applications, including materials such as aldehydes, ketones, and esters. More generally, naturally occurring plant and animal oils and exudates containing complex mixtures of various chemical components are known to be used as fragrances. Fragrances can be relatively simple in their composition, containing a single chemical, or they can be highly complex mixtures of natural and synthetic chemical components, all of which are selected to provide any desired scent.

[0085] The flavoring ingredients in the compositions of this invention may have a boiling point (BP) of about 500°C or lower, alternatively about 400°C or lower, or alternatively about 350°C or lower. The BP values ​​of many flavoring ingredients are given in *Perfume and Flavor Chemicals (Aroma Chemicals)*, Steffen Arctander (1969). The flavoring ingredients available herein may have a C log P value greater than 0.1, alternatively greater than about 0.5, alternatively greater than about 1.0, or alternatively greater than about 1.2.

[0086]

[0087] Other suitable flavorings (including flavoring ingredients) can be found in the following U.S. Patents 4,145,184, 4,209,417, 4,515,705 and 4,152,272, the entire contents of which are incorporated herein by reference.

[0088] Suitable fragrance ingredients may include the following: thyme, cashmereone, geraniol, citronellol, linalool, ethyl linalool, benzoyl acetate, methyl decenol, methyl phenyl acetate, 6-nonen-1-ol, (6Z)-, benzoyl propionate, ambroxol, 2,6-nonadien-1-ol, (2E,6Z)- (10% DPG solution of nonadienol), cis-3-hexen-1-ol (β,γ-hexenol), isoamyl acetate, ambroxol DL, styrax aldehyde, 3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)pent-4-en-2-ol (ebony alcohol), phenethyl isobutyrate, anthocyanin, phenethyl alcohol, burjoia aldehyde, γ-undecyl lactone (racemic). Dihydromyrcenol, ethyl 2-methyl-1,3-dioxolane-2-ethyl acetate (fruit ketone), metformin oxide, allyl cyclohexylpropionate, tetrahydrolinalool (tetrahydro-linalool), sulphurol, citronellol, methyl nonenoate, Hivernal mixture, linalyl acetate, citronelloloxyacetaldehyde, δ-muscarne, Romanolide, β-pinene, carrageenan, iris ester, o-tert-butylcyclohexyl acetate, succinate, γ-decyl lactone, isoeugenol, jasmine aldehyde, Oxalone (watermelon ketone 1951)), cinnamaldehyde, dihydro-β-ionone, ethyl acetate, cyclemax, eugenol, d-limonene, Vivaldie, cyclohexyloxyacetate Propyl acetate, trans-anetinonal, anethole, cis-3-hexenyl butyl acetate, tricyclodecenyl acetate, violet styrax, nerolidin, damascenone, trans-pine acetaldehyde, dodecanal, eucalyptol, rose ether, undecylaldehyde, allyl hexanoate, Romanone, allyl heptaate, α-iridinone, hexyl acetate, chlorophenol, ivivaldehyde, anisaldehyde, γ-methyl ionone, nonanal, tricyclodecenyl propionate, allyl pentyl glycolate, methyl 2-octynoate, β-ionone, ethyl heptaate, maltol, α-damascenone, methyl-2-nonanoate, γ-nonanolide, dimethyl heptanol, turpentine, methyl ionone, 2-nonen-1-al, ethylene oxide, (E)-2-,(Z)-6- Nonadienal, trans-2-hexenal, ethyl butyrate, pentenyl acetate, ethyl-2-methylbutyrate, melonaldehyde, isoamyl acetate, 2,6-nonadien-1-ol, (2E,6Z)-(nonadienol), 10% labrenone oxime (Rebinox), ethyl hexanoate, phenylacetaldehyde, isobutylquinoline, chamomile, 2-methylundecaldehyde, methyl anthranilate, cis-3,cis-6-nonadienol, ethyl vanillin, benzaldehyde, neobutenone, trialdehyde or privetaldehyde, 10-undecenal, citronellol, decanal, vanillin, L-carvone, ifosfaldehyde, n-octanal, methyl benzoate, phenylethyl acetate, citral, indole, and mixtures thereof.

[0089] Other suitable fragrance ingredients include the following: isoeugenol, jasmine aldehyde, oxalone (watermelon ketone 1951)), cinnamaldehyde, dihydro-β-ionone, ethyl acetate, cyclemax, eugenol, d-limonene, Vivaldie, allyl cyclohexyloxyacetate, trans-anetinonal, anethole, cis-3-hexenylbutyl ester, tricyclodecenyl acetate, violet styrax, nerolidin, damaslenone, trans-pine acetaldehyde, dodecanal, eucalyptol, rose ether, undecylaldehyde, allyl hexanoate, Romanone, heptyl ether, etc. Allyl ester, α-iridinone, hexyl acetate, chlorophyll, ivivaldehyde, anisaldehyde, γ-methyl ionone, nonanal, tricyclodecyl propionate, allyl pentyl glycolate, methyl 2-octynoate, β-ionone, ethyl heptanoate, maltol, α-damastenone, methyl-2-nonanoate, γ-nonanolide, dimethyl heptanol, turmeric, methyl ionone, violet extract, nerolidin, damastenone, trans-pine acetaldehyde, dodecaldehyde, eucalyptol, rose ether, undecylaldehyde (undecyl aldehyde), allyl hexanoate, Romanone, allyl heptanoate, α-iridinone Hexyl acetate, chlorophyll, ivivaldehyde, anisaldehyde, γ-methyl ionone, nonanal, tricyclodecenyl propionate, allyl pentyl glycolate, methyl 2-octynoate, β-ionone, ethyl heptaate, maltol, α-damastenone, methyl-2-nonanoate, γ-nonanolide, dimethyl heptanol, turpentine, methyl ionone, 2-nonen-1-al, ethylene oxide, (E)-2-,(Z)-6-nonadienal, trans-2-hexenal, ethyl butyrate, pentenyl acetate, ethyl-2-methylbutyrate, melonaldehyde, isoamyl acetate, 2,6- Nonadien-1-ol, (2E,6Z)-(nonadienol), 10% labrenone oxime (Rebinox), DPG solution, ethyl hexanoate, phenylacetaldehyde, isobutylquinoline, chamomile, 2-methylundecaldehyde, methyl anthranilate, cis-3,cis-6-nonadienol, ethyl vanillin, benzaldehyde, neobutenone, trialdehyde or privetaldehyde, 10-undecenal, citronellol, decanal, vanillin, L-carvone, ifosfaldehyde, octanal, methyl benzoate, phenylethyl acetate, citral, indole, and mixtures thereof.

[0090] Other suitable fragrance ingredients include the following: violet argan oil, nerolitin, damascenone, trans-pinenealdehyde, dodecanal, eucalyptol, rose ether, undecylaldehyde, allyl hexanoate, romolide, allyl heptaate, α-iridoacetone, hexyl acetate, chlorophyll, lavender, anisaldehyde, γ-methyl ionone, nonanal, tricyclodecenyl propionate, allyl pentyl glycolate, methyl 2-octynoate, β-ionone, ethyl heptaate, maltol, α-damascenone, methyl-2-nonanoate, γ-nonanolide, dimethyl heptanol, turpentine, methyl ionone, 2-nonen-1-al, ethylene oxide, (E)-2-,(Z)-6-nonadienal, trans-2- - Hexenal, ethyl butyrate, pentenyl acetate, ethyl-2-methylbutyrate, melonaldehyde, isoamyl acetate, 2,6-nonadien-1-ol, (2E,6Z)-(nonadienol), 10% labrenone oxime (Rebinox), ethyl hexanoate, phenylacetaldehyde, isobutylquinoline, chamomile, 2-methylundecaldehyde, methyl anthranilate, cis-3,cis-6-nonadienol, ethyl vanillin, benzaldehyde, neobutenone, trialdehyde or privetaldehyde, 10-undecenal, citronellol, decanal, vanillin, L-carvone, ifosfaldehyde, n-octanal, methyl benzoate, phenylethyl acetate, citral, indole, and mixtures thereof.

[0091] In addition, suitable fragrance ingredients include the following: 2-nonen-1-al, ethylene oxide, (E)-2-,(Z)-6-nonadienal, trans-2-hexenal, ethyl butyrate, pentenyl acetate, ethyl-2-methylbutyrate, melonaldehyde, isoamyl acetate, 2,6-nonadien-1-ol, (2E,6Z)-(nonadienol), a 10% DPG solution of labisenone oxime (Rebinox), and ethyl hexanoate. Phenylacetaldehyde, isobutylquinoline, chamomile, 2-methylundecaldehyde, methyl anthranilate, cis-3,cis-6-nonadienol, ethyl vanillin, benzaldehyde, neobutenone, trialdehyde or privet aldehyde, 10-undecenal, citronellol, decanal, vanillin, L-carvone, ifosfaldehyde, octanal, methyl benzoate, phenethyl acetate, citral, indole, and mixtures thereof.

[0092] Examples of fragrances include privet aldehyde or trienal, cis-3-hexenyl acetate, δ-piperyl cinnamon, cyclemax, ethyl-2-methylbutyrate, hexyl acetate, allylcyclohexane propionate, ethyl linalool, undecyl lactone, ambroxan, fentanyl aldehyde, ethyl-2-methylvalerate, isoprene acetate, ethyl maltol, methyl isobutylene tetrahydropyran, ethyl heptanoate, ethylene oxide, allyl heptanoate, tricyclodecyl propionate, and γ-methylionone.

[0093] Another example of fragrances includes octanal, ethylene oxide, pine acetaldehyde, anethole USP, α-piperine, citronellol, cypermethrin, ambronat, 4-tert-butylcyclohexyl acetate, hexyl acetate, cis-3-hexenyl acetate, melonaldehyde, refined α-iridinone, dimethylbenzyl acetate, precyclemone B, tricyclodecene propionate, helvetolide 947650, undecyl lactone, ethyl-2-methyl valerate, phenylacetaldehyde, γ-decyl lactone, dihydroβ-ionone, ethyl-2-methyl butyrate, ethyl methylphenyl glycidyl ester, Romanone, citral, and ethyl vanillin.

[0094] Another example of fragrances includes cold-pressed lemon, melon aldehyde, p-hydroxyphenylbutanone, undecyl lactone, privet aldehyde or trienal, methyl decenol, ambroxol or wood, isoeugenol, ambronat, β,γ-hexenol, ethyl maltol, ethylene oxide, cis-3-hexenyl acetate, δ-piperazine, dihydromyrcenol, ethyl hexanoate, ethyl-2-methyl butyrate, jasmine aldehyde, hexyl acetate, γ-methyl ionone, linalool, and linalyl acetate.

[0095] The spice may contain one or more spice ingredients, wherein at least one spice ingredient has a water solubility of 10g or less per liter of water, alternatively 5g or less per liter of water, or alternatively 2g or less per liter of water.

[0096] The fragrance raw materials may have a dielectric constant (DC) of about 5 to about 10, alternatively about 6 to about 9, and alternatively about 7 to about 9. The dielectric constant is measured at room temperature (23.1 to 23.4 °C) using a BI-870 liquid dielectric constant measuring instrument (Brookhaven Instruments, Corp., New York).

[0097] At least one flavoring ingredient may have a lower AlogP of about 1 to 6.0, alternatively about 1.5 to 6.0, or alternatively about 2.0 to 5.5.

[0098] Flavoring ingredients may include those listed in the table below.

[0099] chemical substances <![CDATA[Solubility in H₂O (g / L)]]> AlogP N-Lauroyl Sarcosine Isopropyl Ester Negligible (below 0.1) 4.8 dihydromyrcene alcohol Negligible (below 0.1) 2.8 Hexylcinnamaldehyde <![CDATA[2.75×10 -3 ]]> 4.7 Hexyl salicylate <![CDATA[9.00×10 -3 ]]> 3.7 Jiale Musk <![CDATA[2.94×10 -4 ]]> 4.3 Methyl dihydrojasmonic acid <![CDATA[9.17×10 -2 ]]> 2.8 Linachun 1.6 2.7 Limonene <![CDATA[1.38×10 -2 ]]> 3.5 Hexylcinnamaldehyde (=hexylcinnamaldehyde) <![CDATA[2.75×10 -3 ]]> 4.7

[0100] Soluble anti-dandruff active ingredients

[0101] Soluble anti-dandruff agents may be a material or mixture selected from the group consisting of: azoles, such as clomiprazole, ketoconazole, itraconazole, econazole and buprofen; hydroxypyridinones, such as piroctone olamine, ciclopirox, lilopiprox and MEA-hydroxyoctylpyridinone; keratolytic agents, such as salicylic acid and other hydroxy acids; agaricone, such as pyraclostrobin; and metal chelating agents, such as 1,10-phenanthroline; and physalinomycin. Azole antimicrobial agents can be imidazoles, selected from: benzimidazole, benzothiazole, bifonazole, buconazole nitrate, clotrimazole, clotrimazole, kluconazole, epconazole, econazole, neoconazole, fenteconazole, fluconazole, flutriazole, isoconazole, ketoconazole, lanoconazole, metronidazole, miconazole, neconazole, omeconazole, oxiconazole nitrate, sertaconazole, thioconazole nitrate, thiaconazole, thiazole, and mixtures thereof; or triazoles, selected from: terconazole, itraconazole, and mixtures thereof. Ketoconazole can be a azole antimicrobial agent. Ketoconazole is the only known antimicrobial agent.

[0102] The soluble anti-dandruff agent may be present in an amount of about 0.1% to 10%, in another embodiment about 0.25% to 8%, and in yet another embodiment about 0.5% to 6%. Alternatively, the soluble anti-dandruff agent may be present in an amount of about 0.1% to about 2%, alternatively about 0.15% to about 1.5%, alternatively about 0.2% to about 1%, alternatively about 0.2% to about 0.75%, and alternatively about 0.25% to 0.5%.

[0103] Siloxane compounds

[0104] The compositions of the present invention may contain siloxane compounds. The siloxane compounds may be contained in the composition in an amount of about 0.05% to about 15% by weight, preferably about 0.1% to about 10%, more preferably about 0.15% to about 5%, and even more preferably about 0.2% to about 4%.

[0105] Siloxane polymers containing quaternary ammonium groups

[0106] Such siloxane compounds that can be used in this document may be those having amine or quaternary ammonium groups, as well as alkylene oxide groups, such as tridecyl polyoxyethylene ether-9-aminodimethylpolysiloxane, siloxane quaternary ammonium salt-22, and those described in detail below.

[0107] The siloxane compounds that can be used in this paper include, for example, siloxane polymers containing quaternary groups with terminal ester groups, having a viscosity of up to 100,000 mPa·s and a D-block length greater than 200 D units. Unbound from theoretical constraints, these low-viscosity siloxane polymers provide improved conditioning benefits such as hair conditioning benefits like smoothness, reduced friction, and prevention of hair damage, while eliminating the need for siloxane blends.

[0108] Structurally, the siloxane polymer is a polyorganosiloxane compound comprising one or more quaternary ammonium groups, at least one siloxane block comprising more than 200 siloxane units, at least one polyalkylene oxide structural unit, and at least one terminal ester group. In one or more embodiments, the siloxane block may comprise 300 to 500 siloxane units. In a preferred embodiment, the polyorganosiloxane compound has general formulas (Ia) and (Ib):

[0109] M—Y—[—(N + R2—T—N + R2)—Y—] m —[—(NR 2 —A—E—A'—NR 2 )—Y—] k —M (Ia)

[0110] M—Y—[—(N + R2—T—N + R2)—Y—] m —[—(N + R 2 2—A—E—A'—N + R 2 2)—Y—] k —M(Ib)

[0111] in:

[0112] m>0, preferably 0.01 to 100, more preferably 0.1 to 100, even more preferably 1 to 100, specifically 1 to 50, more specifically 1 to 20, even more specifically 1 to 10.

[0113] k is 0 or >0 to 50, or preferably 1 to 20, or even more preferably an average of 1 to 10.

[0114] M represents a terminal group, which contains terminal ester groups selected from the following:

[0115] -OC(O)-Z

[0116] -OS(O)2-Z

[0117] -OS(O2)OZ

[0118] -OP(O)(OZ)OH

[0119] -OP(O)(OZ)2

[0120] Z is selected from monovalent organic residues having up to 40 carbon atoms and optionally containing one or more heteroatoms.

[0121] A and A' are each independently selected from single bonds or divalent organic groups having up to 10 carbon atoms and one or more heteroatoms, and

[0122] E represents a polyalkylene group having the following general formula:

[0123] —[CH2CH2O] q —[CH2CH(CH3)O] r —[CH2CH(C2H5)O] s —

[0124] Where q = 0 to 200, r = 0 to 200, s = 0 to 200, and q + r + s = 1 to 600.

[0125] R 2 Selected from hydrogen or R,

[0126] R is selected from a monovalent organic group having up to 22 carbon atoms and optionally one or more heteroatoms, wherein the free valence at the nitrogen atom is bonded to the carbon atom.

[0127] Y is a group having the following formula:

[0128] —K—S—K—and—A—E—A'—or—A'—E—A—,

[0129]

[0130] Where R1 = C1 - C 22 -alkyl, C1-C 22 -Fluoroalkyl or aryl; n = 200 to 1000, and if multiple S groups are present in the polyorganosiloxane compound, these may be the same or different.

[0131] K is a divalent or trivalent linear, cyclic, and / or branched C2-C. 40 Hydrocarbon residues, optionally with the insertion of —O—, —NH—, trivalent N, —NR. 1 —、—C(O)—、—C(S)—, and optionally replaced by —OH, wherein R 1 As defined above,

[0132] T is selected from divalent organic groups having up to 20 carbon atoms and one or more heteroatoms.

[0133] Residues K can be the same or different from each other. In the —K—S—K— part, residue K is bonded to the silicon atom of residue S via a C-Si bond.

[0134] Because polyorganosiloxane compounds may contain amine groups (—(NR) 2 —A—E—A'—NR 2 Therefore, it can have protonated ammonium groups obtained by protonating such amine groups with organic or inorganic acids. Such compounds are sometimes referred to as acid addition salts of polyorganosiloxane compounds.

[0135] In a preferred embodiment, the molar ratio of the quaternary ammonium group b) to the terminal ester group c) is less than 100:20, even more preferably less than 100:30, and most preferably less than 100:50. This ratio can be determined by... 13 Determined by C-NMR.

[0136] In another embodiment, the polyorganosiloxane composition may comprise:

[0137] A) At least one polyorganosiloxane compound comprising a) at least one polyorganosiloxane group, b) at least one quaternary ammonium group, c) at least one terminal ester group, and d) at least one polyalkylene group (as defined above).

[0138] B) At least one polyorganosiloxane compound containing at least one terminal ester group different from compound A).

[0139] In the definition of component A), it may be mentioned in the description of the polyorganosiloxane compounds of the present invention. Polyorganosiloxane compound B) differs from polyorganosiloxane compound A) preferably in that it does not contain a quaternary ammonium group. Preferred polyorganosiloxane compound B) is obtained from the reaction of a monofunctional organic acid (specifically a carboxylic acid) with a polyorganosiloxane containing a diepoxide.

[0140] In the polyorganosiloxane composition, the weight ratio of compound A) to compound B) is preferably less than 90:10. Alternatively, the content of compound B) is at least 10% by weight. In another preferred embodiment of the polyorganosiloxane composition in compound A), the molar ratio of quaternary ammonium group b) to terminal ester group c) is less than 100:10, even more preferably less than 100:15, and most preferably less than 100:20.

[0141] This siloxane polymer exhibits properties at 20°C and 0.1s. -1The viscosity is less than 100,000 mPa·s (100 Pa·s) at a shear rate (plate-to-plate system, plate diameter 40 mm, gap width 0.5 mm). In another embodiment, the viscosity of the pure siloxane polymer can be in the range of 500 mPa·s to 100,000 mPa·s, or preferably 500 mPa·s to 70,000 mPa·s, or more preferably 500 mPa·s to 50,000 mPa·s, or even more preferably 500 mPa·s to 20,000 mPa·s. In another embodiment, at 20°C and 0.1 s -1 The viscosity of the pure polymer, as determined at a certain shear rate, can be in the range of 500 mPa·s to 10,000 mPa·s, or preferably 500 mPa·s to 5,000 mPa·s.

[0142] In addition to the siloxane polymers listed above, the following preferred compositions are also provided below. For example, in polyalkylene groups E having the following general formula:

[0143] —[CH2CH2O] q —[CH2CH(CH3)O] r —[CH2CH(C2H5)O] s —

[0144] The subscripts q, r, and s can be defined as follows:

[0145] q = 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20.

[0146] r = 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20; s = 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20.

[0147] And q+r+s = 1 to 600, or preferably 1 to 100, or more preferably 1 to 50, or even more preferably 1 to 40.

[0148] For polyorganosiloxane structural units having the following general formula S:

[0149]

[0150] R 1 =C1-C 22 -alkyl, C1-C 22 -Fluoroalkyl or aryl; n = 200 to 1000, or preferably 300 to 500, K (in the group —K—S—K—) is preferably a divalent or trivalent straight-chain, cyclic or branched C2-C 20Hydrocarbon residues, optionally with the insertion of —O—, —NH—, trivalent N, —NR. 1 —、—C(O)—、—C(S)—, and optionally replaced by —OH.

[0151] In the specific implementation plan, R 1 For C1-C 18 Alkyl, C1-C 18 Fluoroalkyl and aryl groups. Additionally, R... 1 Preferably C1-C 18 Alkyl, C1-C6 fluoroalkyl, and aryl. Additionally, R... 1 More preferably, it is a C1-C6 alkyl group, a C1-C6 fluoroalkyl group, and even more preferably a C1-C4 fluoroalkyl group and a phenyl group. Most preferably, R 1 It can be methyl, ethyl, trifluoropropyl, or phenyl.

[0152] As used in this article, the term "C1-C" 22 "Alkyl" refers to an aliphatic hydrocarbon group having 1 to 22 carbon atoms, which can be straight-chain or branched. Methyl, ethyl, propyl, n-butyl, pentyl, hexyl, heptyl, nonyl, decyl, undecyl, isopropyl, neopentyl, and 1,2,3-trimethylhexyl moieties are used as examples.

[0153] Additionally, as used in this article, the term "C1-C" 22 "Fluoroalkyl" refers to an aliphatic hydrocarbon compound having 1 to 22 carbon atoms, which may be straight-chain or branched and substituted with at least one fluorine atom. Monofluoromethyl, monofluoroethyl, 1,1,1-trifluoroethyl, perfluoroethyl, 1,1,1-trifluoropropyl, and 1,2,2-trifluorobutyl are suitable examples.

[0154] Additionally, the term "aryl" refers to an unsubstituted phenyl group or a phenyl group that has been substituted once or multiple times with OH, F, Cl, CF3, C1-C6 alkyl, C1-C6 alkoxy, C3-C7 cycloalkyl, C2-C6 alkenyl, or phenyl. Aryl can also refer to naphthyl.

[0155] For embodiments of polyorganosiloxanes, the positive charge derived from one or more ammonium groups is neutralized by inorganic anions such as chloride ions, bromide ions, hydrogen sulfate ions, sulfate ions, or organic anions such as those derived from C1-C2. 30 Carboxylate ions (e.g., acetate, propionate, octanoate), especially those derived from C 10 -C 18Carboxylate ions of carboxylic acids (e.g., decanoate, dodecanoate, tetradecanoate, hexadecanoate, octadecanoate, and oleate), alkyl polyether carboxylate ions, alkyl sulfonate ions, aryl sulfonate ions, alkyl aryl sulfonate ions, alkyl sulfate ions, alkyl polyether sulfate ions, and phosphate ions derived from monoalkyl / aryl phosphates and dialkyl / aryl phosphates. The properties of polyorganosiloxane compounds can be modified, in particular, based on the choice of acid used.

[0156] Quaternary ammonium groups are typically generated by reacting a ditertiary amine with an alkylating agent in the presence of a monocarboxylic acid and a difunctional dihaloalkyl compound, specifically a diepoxide (sometimes also called a biepoxide).

[0157] In a preferred embodiment, the polyorganosiloxane compound has general formulas (Ia) and (Ib):

[0158] M—Y—[—(N + R2—T—N + R2)—Y—] m —[—(NR 2 —A—E—A'—NR 2 )—

[0159] Y—] k —M(Ia)

[0160] M—Y—[—(N + R2—T—N + R2)—Y—] m —[—(N + R 2 2—A—E—A'—N + R 2 2)—

[0161] Y—] k —M(Ib)

[0162] Each group is defined as above; however, the repeating units are arranged statistically (i.e., not in a block arrangement).

[0163] In another preferred embodiment, the polyorganosiloxane compound may also have the general formula (IIa) or (IIb):

[0164] M—Y—[—N + R2—Y—] m —[—(NR 2 —A—E—A'—NR 2 )—Y—] k —M

[0165] (IIa)

[0166] M—Y—[—N + R2—Y—] m —[—(N + R 2 2—A—E—A'—N + R 2 2)—Y—] k —M

[0167] (IIb)

[0168] Each group is defined as above. In such formulas, repeating units are also typically arranged statistically (i.e., not in a block arrangement).

[0169] Where, as defined above, M is

[0170] -OC(O)-Z,

[0171] -OS(O)2-Z

[0172] -OS(O2)OZ

[0173] -OP(O)(OZ)OH

[0174] -OP(O)(OZ)2

[0175] Z represents a straight-chain, cyclic, or branched saturated or unsaturated C1-C group. 20 Or preferably C2 to C 18 Or even more preferably, a hydrocarbon group may be inserted with one or more —O— or —C(O)— and substituted with —OH. In one specific embodiment, M is -OC(O)-Z, which is derived from a common carboxylic acid, specifically a carboxylic acid having more than 10 carbon atoms, such as dodecanoic acid.

[0176] In another embodiment, the molar ratio of the repeating group —K—S—K— contained in the polyorganosiloxane to the repeating group —A—E—A'— or —A'—E—A— is between 100:1 and 1:100, or preferably between 20:1 and 1:20, or more preferably between 10:1 and 1:10.

[0177] In the group —(N) + R2—T—N + In R2), R can represent a monovalent straight-chain, cyclic, or branched C1-C. 20 Hydrocarbon groups, which may contain one or more —O— or —C(O)— and may be substituted with —OH, and T may represent divalent straight-chain, cyclic, or branched C1-C groups. 20 Hydrocarbon groups, which may be inserted with —O— or —C(O)— and may be replaced by hydroxyl groups.

[0178] The aforementioned polyorganosiloxane compounds containing quaternary ammonium functional groups and ester functional groups may further comprise: 1) a single molecule containing a quaternary ammonium functional group but not an ester functional group; 2) a molecule containing both quaternary ammonium and ester functional groups; and 3) a molecule containing an ester functional group but not a quaternary ammonium functional group. Although not structurally limited, the aforementioned polyorganosiloxane compounds containing quaternary ammonium and ester functional groups will be understood as mixtures of molecules comprising two portions in a certain average amount and ratio.

[0179] Various monofunctional organic acids can be used to produce esters. Exemplary embodiments include C1-C14. 30 Carboxylic acids, such as C2, C3, and C8 acids, C 10 -C 18 Carboxylic acids, such as C 12 C 14 C 16 Acids, saturated, unsaturated, and hydroxyl-functionalized C 18 Acids, alkyl polyether carboxylic acids, alkyl sulfonic acids, aryl sulfonic acids, alkyl aryl sulfonic acids, alkyl sulfuric acids, alkyl polyether sulfuric acids, monoalkyl / aryl phosphates and dialkyl / aryl phosphates.

[0180] Other siloxanes

[0181] Other siloxanes that may be used herein can be, for example, volatile siloxanes, such as cyclic siloxanes, dimethyl polysiloxane fluids, dimethyl polysiloxane adhesives, aminosiloxanes, and siloxane copolyols. Preferred aminosiloxanes include, for example, those conforming to general formula (I):

[0182] (R1) a G 3-a -Si-(-OSiG2) n -(-OSiG b (R1) 2-b ) m -O-SiG 3-a (R1) a

[0183] Wherein G is hydrogen, phenyl, hydroxyl, or C1-C8 alkyl, preferably methyl; a is 0 or an integer from 1 to 3, preferably 1; b is 0, 1, or 2, preferably 1; n is a number from 0 to 1,999; m is an integer from 0 to 1,999; the sum of n and m is a number from 1 to 2,000; a and m are not both 0; R1 conforms to the general formula CqH 2q L is a monovalent group, where q is an integer from 2 to 8, and L is selected from the following groups: -N(R2)CH2-CH2-N(R2)2; -N(R2)2; -N(R2)3A ˉ ;-N(R2)CH2-CH2-NR2H2A ˉR2 is a hydrogen, phenyl, benzyl, or saturated hydrocarbon group, preferably about C1 to about C2. 20 alkyl groups; A - It is a halide ion.

[0184] Highly preferred aminosiloxanes are those corresponding to formula (I), wherein m = 0, a = 1, q = 3, G = methyl, n is preferably about 1500 to about 1700, more preferably about 1600; and L is –N(CH3)2 or –NH2, more preferably –NH2. Another highly preferred aminosiloxane is those corresponding to formula (I), wherein m = 0, a = 1, q = 3, G = methyl, n is preferably about 400 to about 600, more preferably about 500; and L is –N(CH3)2 or –NH2, more preferably –NH2. Such highly preferred aminosiloxanes may be referred to as terminal aminosiloxanes because one or both ends of the siloxane chain are capped with nitrogen-containing groups.

[0185] Additional components

[0186] The compositions of the present invention may contain other additional components, which may be selected by those skilled in the art according to the desired properties of the final product, and which are adapted to make the composition more cosmetically or aesthetically acceptable, or to provide them with additional beneficial effects. Such other additional components are typically used alone in amounts of about 0.001% to about 10%, alternatively up to about 5%, by weight of the composition.

[0187] Various other additional components can be formulated into the compositions of the present invention. These include: other conditioning agents, such as aloe vera gel; aloe vera leaf juice; kelp extract; natural oils and waxes containing: shea butter, safflower oil, cocoa butter, orange peel wax, olive oil, macadamia seed oil, evening primrose oil, sea cabbage seed oil, nut oil, linseed oil, sunflower oil, almond oil, argan kernel oil, grapeseed oil, jojoba oil, coconut oil, meadowfoam seed oil, neem oil, linseed oil, castor oil, soybean oil, sesame oil, beeswax, sunflower wax, candelilla wax, rice bran wax, carnauba wax, myrica wax, and soybean wax; essential oils that can be used in fragrances, such as lime peel oil, lavender oil, peppermint oil, cedarwood oil, tea tree oil, ylang-ylang oil, and coensage oil; and products that can be marketed under the name Peptein. Hydrolyzed collagen purchased from Hormel (brand name Emix-d, also available from Eisai), panthenol and panthenyl ethyl ether from Roche, hydrolyzed keratin, proteins, plant extracts, and nutrients; pH adjusters such as citric acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, and sodium carbonate; salts, generally such as potassium acetate and sodium chloride; colorants such as any of FD&C or D&C dyes; chelating agents such as disodium EDTA; UV and IR masking and absorbing agents such as octyl salicylate; antioxidants including rosemary, tocopherol, vitamin E, vitamin A, and tea extracts; and amino acids including histidine and L-arginine.

[0188] Some consumers prefer conditioning compositions that are free of or substantially free of the following: silicones, propellants, phthalates, parabens, isothiazolinones (e.g., Kathon). TM (), phenoxyethanol, dyes, sulfates and / or formaldehyde donors. Conditioner compositions may also be vegan.

[0189] Test methods

[0190] Method for detecting active dandruff-reducing substances in crystals

[0191] The conditioner composition was examined at room temperature using an Axioscope microscope (ZEISS, Germany) at 10x magnification. The microscope was equipped with an Axiocam 305 color camera connected to a computer. Images of piroctone ethanolamine crystals in the conditioner composition were captured by the camera and downloaded to the computer using ZEISS ZEN lite software. The images were then visually examined to determine the presence of anti-dandruff active ingredient crystals. As used herein, “visual inspection” refers to the ability of a human observer to visually identify the crystals (excluding standard corrective lenses suitable for compensating for myopia, hyperopia, astigmatism, or other visual corrections) at 10x magnification.

[0192] Anti-dandruff active substance deposition test

[0193] The deposition of anti-dandruff active ingredients on the scalp was measured by washing the individual's hair and scalp. First, a shampoo was applied to the hair and scalp and rinsed off. Then, one of the compositions described above was applied and rinsed off. All washings were controlled and followed strict protocols to maintain consistency between individuals. Hair on the scalp area was separated to allow an open-ended glass graduated cylinder to remain on the surface while an aliquot of the extraction solution was added and stirred. The solution was then recovered, and the piroctone ethanolamine content was determined by conventional methods such as HPLC.

[0194] pH method

[0195] First, calibrate the Mettler Toledo Seven compact pH meter. This is done by turning on the pH meter and waiting 30 seconds. Then remove the electrode from the storage solution, rinse it with distilled water, and wipe it with a scientific cleaning wipe such as... Carefully wipe the electrode. Immerse the electrode in pH 4 buffer and press the calibration button. Wait until the pH icon stops flashing, then press the calibration button again. Rinse the electrode with distilled water and carefully wipe it with a scientific cleaning agent. Then immerse the electrode in pH 7 buffer and press the calibration button again. Wait until the pH icon stops flashing, then press the calibration button a third time. Rinse the electrode with distilled water and carefully wipe it with a scientific cleaning agent. Then immerse the electrode in pH 10 buffer and press the calibration button a third time. Wait until the pH icon stops flashing, then press the measurement button. Rinse the electrode with distilled water and carefully wipe it with a scientific cleaning agent.

[0196] Immerse the electrode in the test sample and press the read button. Wait until the pH icon stops flashing, and then record the value.

[0197] Example

[0198] The following are non-limiting examples of the conditioner compositions described herein. It should be understood that other modifications to the invention can be made by those skilled in the art without departing from the spirit and scope of the invention.

[0199] Unless otherwise specified, all parts, percentages, and ratios in this document are by weight. Some components may be available from the supplier as diluent solutions. Unless otherwise specified, the quantities shown reflect the weight percentage of the material added.

[0200] The examples in Tables 1 to 3 were prepared as follows. Sodium benzoate and L-glutamic acid were dissolved in water. The mixture was heated to 80°C. Then, a cationic surfactant and a fatty alcohol were added to the mixture. Next, the mixture was cooled while the cationic surfactant and fatty alcohol continued to dissolve. Then, piroctone ketone ethanolamine and a glycol or glyceryl ester / ether were added. When the temperature was below 45°C, the oil and fragrance were added. The composition was cooled to room temperature to prepare the conditioning composition. Finally, if necessary, the pH was adjusted to 3.5 to 5.

[0201] The appearance was determined using the method for detecting active dandruff-reducing substances in crystals described in this article.

[0202] Table 1: Comparison of Conditioner Examples AE

[0203]

[0204] Table 2: Comparison of Conditioner Examples FJ

[0205]

[0206]

[0207] Table 3: Examples 1-6 of the Conditioner of the Present Invention

[0208]

[0209]

[0210] Table 4: Examples of the Conditioner of the Present Invention 7-12

[0211]

[0212]

[0213]

[0214] Microbes and microfungi within 2 days were determined using the bacterial and fungal microbial susceptibility testing methods described herein. For the preservative system to be effective, the microbial (bacterial and fungal) content needs to be undetectable, meaning a reduction of more than 99.99% of microorganisms within two days, as determined by the bacterial and fungal microbial susceptibility testing methods. All examples in Tables 3-4 demonstrate effective preservative systems (i.e., undetectable bacteria and fungi within 2 days (>99.99% reduction)).

[0215] Table 5: Comparison of Conditioner Examples KO

[0216]

[0217]

[0218] Comparative example KP did not provide sufficient microbial reduction for bacteria and fungi within 2 days.

[0219] 1. Piroctone olamine Available for purchase

[0220] 2. Decanediol Available for purchase

[0221] 3. Pentylene glycol ( 5) Available for purchase

[0222] 4. Octanediol ( CG), available for purchase

[0223] 5. Caprylic / Capric Glyceryl (C-glycerol) GMCY), available for purchase

[0224] 6. Caprylic acid glyceride (and) undecenoic acid glyceride ( Natural), available for purchase

[0225] 7. Sodium benzoate, which can be obtained from... get

[0226] 8. Docosanoylaminopropyl dimethylamine (BAPDMA) (Incromine) TM BD), purchased from

[0227] 9. Rapeseed oil oleamide propyl dimethylamine (BrassaPDMA) (ProCondition) Available for purchase from

[0228] 10. L-Glutamic acid: Available for purchase

[0229] 11. Cetyl alcohol, 95% active ingredient content, available from Procter & Gamble.

[0230] 12. Stearyl alcohol, 97% active ingredient content, available from Procter & Gamble.

[0231] 13. Cetearyl alcohol Available for purchase

[0232] Comparative Example AJ (see Tables 1 and 2) and Examples 1-12 of the present invention (see Tables 3 and 4) are both aqueous conditioner compositions containing 0.25% to 0.5% pyrrolidone ethanolamine, cationic surfactant and fatty alcohol.

[0233] Comparative Examples AJ all have piroctone ethanolamine crystals with an average size of about 40 μm to about 80 μm, and are not consumer-acceptable. Comparative Examples AD are free of glycols, glycol esters, and fragrances, and in the tested examples, these examples have a maximum average piroctone ethanolamine crystal size of about 80 μm. Comparative Example EH contains 1% by weight fragrance but is free of glycols or glycol esters. The piroctone ethanolamine crystals in Comparative Example EH have an average size of about 40 μm, which is smaller on average than the crystals in Comparative Example AD, but is still not consumer-preferred. Comparative Example IJ contains 0.6% to 1% by weight glycols and / or glycol esters but is free of fragrances. The piroctone ethanolamine crystals in Comparative Example IJ have an average size of about 40 μm, which is similar to that of Comparative Example EH, and is not consumer-preferred.

[0234] Examples 1-12 of this invention do not contain detectable pyrrolidone ethanolamine crystals. In addition to pyrrolidone ethanolamine, a cationic surfactant, and a fatty alcohol, Examples 1-6 and 9-12 also contain 0.6% to 1.5% by weight of glycols and / or glycol esters and 0.7% to 1% by weight of fragrance. It is believed, without being bound by theory, that the combination of glycols and / or glycol esters with fragrance can dissolve pyrrolidone ethanolamine in an aqueous conditioner composition. Examples 7-8 contain 1% by weight of glycols and / or glycol esters and do not contain fragrance. It is believed, without being bound by theory, that 1% by weight of glycols and / or glycol esters and 0.25% by weight of pyrrolidone ethanolamine are sufficient to dissolve pyrrolidone ethanolamine.

[0235] use Anti-dandruff active substance deposition test The method described herein measures the deposition of soluble AD active ingredient (pyrrolidone ethanolamine) on the scalp in the composition of Example #2 (EX2). A significant amount of 1.7 mg / cm2 of pyrrolidone ethanolamine was found deposited on the scalp.

[0236] combination

[0237] A. A hair conditioning composition, said hair conditioning composition comprising:

[0238] a. 50% to 95% aqueous carrier based on the weight of the composition;

[0239] b. 0.1% to 10% by weight of cationic surfactants;

[0240] c. 1.0% to 15% by weight of high-melting-point aliphatic compounds;

[0241] d. A gel network comprising the aqueous carrier, a cationic surfactant, and a high-melting-point aliphatic compound;

[0242] e. 0.1% to 1.0% by weight of soluble anti-dandruff active ingredients;

[0243] f. A preservative system comprising 0.3% to 1.5% of a preservative composition selected from the group consisting of glycols, glycerides, glyceryl ethers, and combinations thereof.

[0244] B. The hair conditioning composition according to paragraph A, wherein the hair conditioning composition further comprises 0.1% to 2% by weight, preferably 0.6% to 1.5% by weight, more preferably 0.6% to 1.2% by weight, and even more preferably 0.7% to 1% by weight of fragrance.

[0245] C. The hair conditioning composition according to paragraph AB, wherein the composition comprises 0.5% to 8.0% of a cationic surfactant, preferably 0.8% to 6.0% of a cationic surfactant, and more preferably 1.0% to 4.0% of a cationic surfactant.

[0246] D. The hair conditioning composition according to paragraph AC, wherein the cationic surfactant is selected from the group consisting of: docosanoylaminopropyl dimethylamine (BAPDMA), rapeseed oleamide propyl dimethylamine, docosanoyltrimethylammonium chloride, docosanoyltrimethylammonium sulfate, hexadecyltrimethylammonium chloride, stearoylaminopropyl dimethylamine, and combinations thereof.

[0247] E. The hair conditioning composition according to paragraph AD, wherein the composition comprises 2% to 8% by weight of a high-melting-point aliphatic compound, preferably 2.5% to 7.0% by weight, and more preferably 3.0% to 6.0% by weight.

[0248] F. The hair conditioning composition according to paragraph AE, wherein the high-melting-point fatty compound is a fatty alcohol selected from the group consisting of cetyl alcohol, stearyl alcohol, and combinations thereof.

[0249] G. The hair conditioning agent according to paragraph AF, wherein the hair conditioning agent comprises 70% to 93% of an aqueous carrier, and preferably 80% to 92% of an aqueous carrier, wherein the aqueous carrier comprises water.

[0250] H. The hair care composition according to paragraph AG, wherein the soluble anti-dandruff active ingredient is hydroxypyridinone.

[0251] I. The hair conditioning composition according to paragraph AH, wherein the soluble anti-dandruff active ingredient comprises piroctone ethanolamine.

[0252] J. The hair conditioning composition according to paragraph AI, wherein the hair conditioning composition comprises 0.3 to 5, preferably 0.3 to 2, more preferably 0.8 to 1.5 and even more preferably 0.4 to 2.5 by weight of a preservative composition and a fragrance.

[0253] K. The hair conditioning composition according to paragraph AJ, wherein the hair conditioning composition comprises 0.4% to 1.70% by weight of the preservative composition, and optionally 0.5% to 1.70% by weight.

[0254] 1.65% by weight of the corrosion-resistant composition, alternatively 0.55% to 1.60% by weight of the corrosion-resistant composition, and alternatively 0.60% to 1.50% by weight of the corrosion-resistant composition.

[0255] L. The hair conditioning composition according to paragraph AK, wherein the preservative system further comprises 0.05% to 0.8% by weight of sodium benzoate, preferably 0.1% to 0.5% by weight of sodium benzoate, more preferably 0.2% to 0.4% by weight of sodium benzoate, and even more preferably 0.22% to 0.3% by weight of sodium benzoate.

[0256] M. The hair conditioning composition according to paragraph AL, wherein the high-melting-point aliphatic compound is a fatty alcohol selected from the group consisting of: cetyl alcohol, stearyl alcohol, docosyl alcohol, brassinolide, and combinations thereof.

[0257] N. The hair conditioning composition according to paragraph AM, wherein the diol is selected from the group consisting of: butanediol, pentanediol, hexanediol, 1,2-hexanediol, octanediol, decanediol, and mixtures thereof.

[0258] O. The hair conditioning composition according to paragraph AN, wherein the glyceride is selected from the group consisting of: caprylic glyceride, caprylic glyceride, undecenoic glyceride, and mixtures thereof.

[0259] P. The hair conditioning composition according to paragraph AO, wherein the composition is substantially free of ingredients selected from the group consisting of: silicones, propellants, phthalates, dyes, sulfates, formaldehyde donors, and combinations thereof.

[0260] Q. The hair conditioning composition according to paragraph AP, wherein the preservative system is substantially free of preservative compositions selected from the group consisting of: ethylenediaminetetraacetic acid and its salts, isothiazolinone, benzyl alcohol, phenoxyethanol, cyclohexylglycerol, parabens, and combinations thereof.

[0261] R. The hair conditioning composition according to paragraph AQ, wherein the composition has a pH of 2.5 to 5, preferably 3.5 to 4.5, as measured according to the pH testing method described herein.

[0262] S. The hair conditioning composition according to paragraph AR, wherein no pyroximate ethanolamine crystals are visible to be detected according to the method for detecting anti-dandruff active substance crystals described herein.

[0263] T. The hair conditioning composition described in paragraph AS is used for conditioning hair and preventing and / or reducing dandruff.

[0264] U. A method for improving the deposition of anti-dandruff active substances on the scalp by applying a conditioning composition according to paragraph AT to hair and / or scalp and optionally rinsing.

[0265] V. The method for improving the deposition of active substances for dandruff removal as described in paragraph U, comprising first applying a shampoo to the hair and / or scalp, then rinsing the shampoo off the scalp, and then applying the conditioning composition.

[0266] The dimensions and values ​​disclosed herein should not be construed as strictly limited to the precise numerical values ​​cited. Rather, unless otherwise specified, each such dimension is intended to represent the stated value and a range around which it is functionally equivalent. For example, a dimension disclosed as “40 mm” is intended to represent “approximately 40 mm”.

[0267] Unless expressly excluded or otherwise limited, every reference cited herein, including any cross-references or related patents or patent applications, and any patent application or patent claiming priority to or benefiting from it, is incorporated herein by reference in its entirety. Reference to any reference is not an endorsement of it as prior art to any disclosed or protected art herein, nor is it an endorsement of any such invention, either on its own or in combination with any one or more references. Furthermore, where any meaning or definition of a term in this invention conflicts with any meaning or definition of the same term in referenced documents, the meaning or definition given to that term in this invention shall prevail.

[0268] While specific embodiments of the invention have been illustrated and described by way of example, 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 falling within the scope of the invention be covered by the appended claims.

Claims

1. A hair conditioning composition, said composition comprising: a. 50% to 95% aqueous carrier based on the weight of the composition; b. 0.1% to 10% by weight of a cationic surfactant, wherein the cationic surfactant is selected from the group consisting of: docosanoylaminopropyl dimethylamine, rapeseed oil amide propyl dimethylamine, docosanoyltrimethylammonium sulfate, docosanoyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, stearoylaminopropyl dimethylamine, and combinations thereof. c. 1.5% to 15% by weight of a high-melting-point aliphatic compound, wherein the high-melting-point aliphatic compound is a fatty alcohol selected from the group consisting of: cetyl alcohol, stearyl alcohol, docosyl alcohol, brassinolide, and combinations thereof. d. A gel network comprising the aqueous carrier, a cationic surfactant, and a high-melting-point aliphatic compound; e. 0.1% to 1.0% by weight of a soluble anti-dandruff active ingredient, wherein the soluble anti-dandruff active ingredient comprises a hydroxypyridinone; f. A preservative system comprising 0.3% to 1.5% of a preservative composition selected from the group consisting of glycols, glycerides, and combinations thereof; in, The diol is selected from the group consisting of: butanediol, pentanediol, hexanediol, 1,2-hexanediol, octanediol, decanediol, and mixtures thereof; and The glycerides are selected from the group consisting of: caprylic glyceride, caprylic glyceride, undecenoic glyceride, and mixtures thereof.

2. The composition according to claim 1, wherein no pyroxolamine crystals are visible to be detected according to the method for detecting dandruff-reducing active ingredient crystals.

3. The composition according to claim 1, wherein the composition further comprises 0.1% to 2% by weight of fragrance.

4. The composition according to claim 3, wherein the weight ratio of the preservative system to the fragrance is 0.4 to 2.

5.

5. The composition according to claim 1, wherein the anti-corrosion system further comprises 0.1% to 0.5% by weight of sodium benzoate.

6. The composition according to claim 1, wherein the soluble anti-dandruff active ingredient is piroctone ethanolamine.

7. The composition of claim 1, wherein the composition is substantially free of components selected from the group consisting of: organosilicones, propellants, phthalates, dyes, sulfates, formaldehyde donors, and combinations thereof.

8. The composition according to claim 1, wherein the composition has a pH of 2.5 to 5, as measured according to a pH testing method.

9. The composition according to claim 1, wherein the composition comprises up to eight ingredients.

10. A hair conditioning composition, said composition comprising: a. 50% to 95% aqueous carrier based on the weight of the composition; b. 1% to 6% by weight of a cationic surfactant, wherein the cationic surfactant is selected from the group consisting of: docosanoylaminopropyl dimethylamine, rapeseed oil amide propyl dimethylamine, docosanoyltrimethylammonium sulfate, docosanoyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, stearoylaminopropyl dimethylamine, and combinations thereof. c. 2% to 8% by weight of high-melting-point aliphatic compounds selected from the group consisting of: cetyl alcohol, stearyl alcohol, and combinations thereof; d. A gel network comprising the aqueous carrier, a cationic surfactant, and a high-melting-point aliphatic compound; e. 0.1% to 1.0% by weight of pyrrolidone ethanolamine; f. A preservative system comprising 0.3% to 1.5% of a composition selected from the group consisting of glycols, glycerides, and combinations thereof; g. Spices; The preservative system has a weight ratio of 0.8 to 1.5 to the fragrance. in, The diol is selected from the group consisting of: butanediol, pentanediol, hexanediol, 1,2-hexanediol, octanediol, decanediol, and mixtures thereof; and The glycerides are selected from the group consisting of: caprylic glyceride, caprylic glyceride, undecenoic glyceride, and mixtures thereof.

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