Hair care composition
The hair care composition addresses the issue of excessive fatty compound deposition by using a 1:2 ratio of fatty alcohol to cationic surfactant, enhancing silicone deposition on damaged hair and reducing fatty alcohol deposition on healthy hair, resulting in improved conditioning and cleanliness.
Patent Information
- Application Number
- JP2024577232
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-15
- Filing Date
- 2024-08-15
- Publication Date
- 2025-09-17
AI Technical Summary
Existing hair care compositions with higher levels of fatty compounds result in excessive deposition at the hair roots, leading to oily and heavy hair, while compositions with lower fatty compounds fail to provide sufficient conditioning, especially for those with oily roots and dry ends.
A hair care composition comprising a fatty alcohol, a cationic surfactant, and an aqueous carrier, with a ratio of fatty alcohol to cationic surfactant at least 1:2, and free of anionic surfactants, to enhance silicone deposition on damaged hair and reduce fatty alcohol deposition on healthy hair.
The composition provides improved conditioning benefits for damaged hair without making it oily or heavy, while maintaining good hair volume and cleanliness by optimizing the ratio of fatty alcohol to cationic surfactant.
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Abstract
Description
[Technical Field]
[0001] The present invention relates to a hair care composition comprising a fatty alcohol, a high level of a cationic surfactant, and an aqueous carrier. The composition of the present invention provides improved conditioning for damaged hair without making hair oily or heavy, while providing improved deposition of silicone compounds. [Background technology]
[0002] For conditioning hair, various methods have been developed.The common method of providing conditioning effect is by using conditioning agents such as cationic surfactants and polymers, high melting point fatty compounds, low melting point oils, silicone compounds, and mixtures thereof.Most of these conditioning agents are known to provide various conditioning effects. Summary of the Invention [Problem to be solved by the invention]
[0003] Typically, the level of fatty compounds is higher than the level of cationic surfactants. High levels of fatty compounds cause excessive deposition on hair. Through multiple cycles of use, fatty compounds accumulate on hair, making hair heavy and making hair look oily and heavy. In order to avoid hair looking heavy and oily, a composition containing a smaller amount of conditioning active substance can be used. However, this composition does not provide sufficient conditioning for those who require high conditioning, while using a larger amount of conditioning agent will make hair heavy. In both scenarios, excessive deposition of fatty compounds remains. This combination of a higher level of fatty compounds than the level of cationic surfactants means that the composition deposits more at the root of hair, making hair less clean or lacking good volume. Therefore, there remains a need for hair care compositions that do not result in excessive deposition at the roots, yet provide conditioning benefits for those who perceive their hair as having oily roots and dry ends. [Means for solving the problem]
[0004] Disclosed herein is a hair care composition comprising a fatty alcohol, a cationic surfactant, and an aqueous carrier, wherein the ratio of fatty alcohol to cationic surfactant is at least 1:2, and the composition is free of anionic surfactants. DETAILED DESCRIPTION OF THE INVENTION
[0005] While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed the present invention will be better understood from the following description.
[0006] As used herein, "comprising" means that other steps and other ingredients that do not affect the final result may be added. This term encompasses the terms "consisting of" and "consisting essentially of."
[0007] All percentages, parts and ratios are by weight based on the total weight of the compositions of the present invention unless otherwise specified. All such weights as they pertain to listed ingredients are based on the active level and, therefore, do not include carriers or by-products that may be included in commercially available materials.
[0008] As used herein, "mixture" is meant to include the simple combination of materials and any compounds that may result from such a combination.
[0009] The terms "molecular weight" or "M.Wt." as used herein, unless otherwise specified, refer to weight average molecular weight. Weight average molecular weight can be measured by gel permeation chromatography.
[0010] "QS" means sufficient to make 100%.
[0011] Hair care composition The hair care composition includes a fatty alcohol, a cationic surfactant, and an aqueous carrier, and the ratio of fatty alcohol to cationic surfactant can be at least about 1:2. In some embodiments, the ratio of fatty alcohol to cationic surfactant can be at least about 1:2.5, or about 1:3. In some embodiments, the ratio of fatty alcohol to cationic surfactant can be from about 1:2 to about 1:20, in other embodiments from about 1:2 to about 1:10, or from about 1:2 to about 1:9, or from about 1:2 to about 1:8, or from about 1:2 to about 1:6, in other embodiments from about 1:2.5 to about 1:10, or from about 1:2.5 to about 1:8, or from about 1:2.5 to about 1:7, or from about 1:3 to about 1:10.
[0012] Conventional conditioners are typically formulated using a large amount of fatty alcohol (FA) and a small amount of cationic surfactant (CS) to reduce wet combing force on hair and reduce surface friction. In addition to fatty alcohol and cationic surfactant, silicone is often added as a conditioning agent for smooth, manageable hair. Silicones and fatty alcohols are inherently hydrophobic and tend to deposit more in the hydrophobic parts of hair, often resulting in overconditioning at the hair roots. This overdeposition may be due to increased interfiber adhesion due to greater sebophilicity (sebum is also hydrophobic). Therefore, the present invention aims to modify the hair surface through the use of a large amount of cationic surfactant to increase silicone deposition on damaged hair and reduce fatty alcohol deposition on healthy hair. Increasing silicone deposition on damaged hair can increase the conditioning of damaged hair. This increase may result in an indirect silicone reduction in the hair roots and therefore less clumpy hair roots.
[0013] High-melting point aliphatic compounds The composition of the present invention includes a high melting point fatty compound, which is preferably present in the composition at a level of from about 0.05% to about 12.5% by weight, or from about 0.1% to about 20% by weight, or from about 0.25% to about 10% by weight, or from about 0.25% to about 8% by weight, or from about 0.5% to about 6% by weight, or from about 0.5% to about 3% by weight, or from about 0.5% to about 2% by weight, or from about 0.1% to about 17% by weight, or from about 0.1% to about 15% by weight, or from about 0.1% to about 12% by weight, in order to provide improved conditioning benefits, such as a smooth feel during application to wet hair, softness on dry hair, and a moist feel.
[0014] High-melting-point fatty compounds useful herein have a melting point of 25°C or higher and are selected from the group consisting of fatty alcohols, fatty acids, fatty alcohol derivatives, fatty acid derivatives, and mixtures thereof. Those skilled in the art will understand that the compounds disclosed in this section may in some cases belong to more than one category; for example, some fatty alcohol derivatives may also be classified as fatty acid derivatives. However, a given classification is not intended to limit the specific compound, but is made so for the convenience of classification and nomenclature. Furthermore, those skilled in the art will understand that depending on the number and position of double bonds and the length and position of branching, the melting point of certain compounds with certain essential carbon atoms may be below 25°C. Such compounds with low melting points are not intended to be included in this section. Non-limiting examples of high-melting-point compounds can be found in the International Cosmetic Ingredient Dictionary, Fifth Edition, 1993, and the CTFA Cosmetic Ingredient Handbook, Second Edition, 1992.
[0015] Among various high-melting point fatty compounds, fatty alcohols are preferably used in the compositions of the present invention. The fatty alcohols useful herein have about 12 to about 30 carbon atoms, preferably about 16 to about 22 carbon atoms. These fatty alcohols are saturated and may be straight-chain or branched-chain alcohols. Preferred fatty alcohols include, for example, cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof.
[0016] High-purity single-compound high-melting-point fatty acid compounds are preferred.Highly preferred is a single-compound pure fatty alcohol selected from the group consisting of pure cetyl alcohol, stearyl alcohol, and behenyl alcohol.In this specification, "pure" means that the compound has a purity of at least about 90%, preferably at least about 95%.These high-purity single-compound compounds allow consumers to easily rinse off the composition from hair when rinsing it off.
[0017] In the present invention, the more preferred fatty alcohol is a mixture of cetyl alcohol and stearyl alcohol.
[0018] Generally, in the mixture, the weight ratio of cetyl alcohol to stearyl alcohol is preferably from about 1:9 to 9:1, more preferably from about 1:4 to about 4:1, and even more preferably from about 1:2.3 to about 1.5:1.
[0019] When a higher total level of cationic surfactant and high-melting point fatty compound is used, the mixture preferably has a weight ratio of cetyl alcohol to stearyl alcohol of about 1:1 to about 4:1, more preferably about 1:1 to about 2:1, and even more preferably about 1.2:1 to about 2:1, in order to avoid the mixture becoming too viscous for spreadability. This weight ratio also allows for better conditioning of damaged areas of the hair.
[0020] cationic surfactants The composition of the present invention contains a cationic surfactant. From the viewpoint of providing the effects of the present invention, the cationic surfactant may be contained in the composition at a level of about 0.1% to about 25% by weight, preferably 0.5% to about 20% by weight, even more preferably 0.5% to about 16% by weight, even more preferably 1% to 15% by weight, and even more preferably 1% to about 14% by weight of the composition.
[0021] For the purpose of calculating the weight percent of cationic surfactant, the amount of active cationic surfactant should be used as a portion of the total composition or when calculating the ratio of fatty alcohol to cationic surfactant.In many cases, commercially purchased cationic surfactants may be sold with by-products such as isopropyl alcohol, and therefore the active amount of cationic surfactant may be, for example, 80% of the amount of cationic surfactant purchased and added to the composition of the present invention.
[0022] Preferably, in the present invention, the surfactant is water-insoluble. In the present invention, "water-insoluble surfactant" means that the surfactant has a solubility in water at 25°C of preferably less than 0.5 g / 100 g water (excluding 0.5 g / 100 g), more preferably 0.3 g / 100 g water or less.
[0023] The cationic surfactant useful herein can be one cationic surfactant or a mixture of two or more cationic surfactants.Preferably, the cationic surfactant can be selected from the group consisting of mono-long chain alkyl quaternized ammonium salt, a combination of mono-long chain alkyl quaternized ammonium salt and di-long chain alkyl quaternized ammonium salt, mono-long chain alkyl amine, a combination of mono-long chain alkyl amine and di-long chain alkyl quaternized ammonium salt, and a combination of mono-long chain alkyl amine and mono-long chain alkyl quaternized ammonium salt.
[0024] Mono-long chain alkylamine Mono-long chain alkylamines useful herein are those having a single long alkyl chain, preferably 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, and even more preferably 18 to 22 alkyl groups. Mono-long chain alkylamines useful herein also include mono-long chain alkylamidoamines. Primary, secondary, and tertiary aliphatic amines are useful.
[0025] Tertiary amidoamines having alkyl groups of about 12 to about 22 carbon atoms are particularly useful. Exemplary tertiary amidoamines include stearamidopropyl dimethylamine, stearamidopropyl diethylamine, stearamidoethyl diethylamine, stearamidoethyl dimethylamine, palmitamidopropyl dimethylamine, palmitamidopropyl diethylamine, palmitamidoethyl diethylamine, palmitamidoethyl dimethylamine, behenamidopropyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl diethylamine, behenamidoethyl dimethylamine, arachidamidopropyl dimethylamine, arachidamidopropyl diethylamine, arachidamidoethyl diethylamine, arachidamidoethyl dimethylamine, and diethylaminoethyl stearamide. Amines useful in the present invention are disclosed in U.S. Patent No. 4,275,055 (Nachtigal et al.).
[0026] 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, salicylic acid, aspartic acid, and mixtures thereof, more preferably L-glutamic acid, lactic acid, and citric acid, in an amine to acid molar ratio of about 1:0.3 to about 1:5, more preferably about 1:0.4 to about 1:2, and more preferably about 1:0.4 to about 1:1.
[0027] Mono-long-chain alkyl quaternized ammonium salts Mono-long chain alkyl quaternized ammonium salts useful herein are those having one long alkyl chain having 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, and more preferably a C18-22 alkyl group. The remaining groups attached to the nitrogen are independently selected from alkyl groups of 1 to about 4 carbon atoms, or alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl, or alkylaryl groups having up to about 4 carbon atoms.
[0028] The mono-long chain alkyl quaternized ammonium salts useful herein have the formula (I):
[0029] [ka] (In the formula, R 75 , R 76 , R 77 , and R 78 is selected from an alkyl group of 12 to 30 carbon atoms, or an aromatic group, an alkoxy group, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group having up to about 30 carbon atoms; 75 , R 76 , R 77 , and R 78 the remainder are independently selected from alkyl groups of 1 to about 4 carbon atoms, or alkoxy groups having up to about 4 carbon atoms, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups; and X - is one having a salt-forming anion, such as one selected from halogen (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, sulfate, alkyl sulfate, and alkyl sulfonate groups. In addition to carbon and hydrogen atoms, the alkyl group may contain ether and / or ester linkages, as well as other groups such as amino groups. Longer chain alkyl groups, e.g., those having about 12 carbon atoms or more, may be saturated or unsaturated. Preferably, R 75 , R 76 , R 77 , and R 78 is selected from alkyl groups of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, even more preferably 18 to 22 carbon atoms, and still more preferably 22 carbon atoms; 75 , R 76 , R 77 , and R 78the remainder are independently selected from CH3, C2H5, C2H4OH, and mixtures thereof, and X is selected from the group consisting of Cl, Br, CH3OSO3, C2H5OSO3, and mixtures thereof.
[0030] Non-limiting examples of such mono-long chain alkyl quaternized ammonium salt cationic surfactants include behenyltrimethylammonium salts, stearyltrimethylammonium salts, cetyltrimethylammonium salts, and hydrogenated tallowalkyltrimethylammonium salts.
[0031] Di-long alkyl quaternized ammonium salts When used, the di-long-chain alkyl quaternized ammonium salt is preferably combined with the mono-long-chain alkyl quaternized ammonium salt and / or the mono-long-chain alkyl amine salt in a weight ratio of 1:1 to 1:5, more preferably 1:1.2 to 1:5, and even more preferably 1:1.5 to 1:4, from the viewpoint of the stability of the rheological effect and the conditioning effect.
[0032] Di-long chain alkyl quaternized ammonium salts useful herein are those having two long alkyl chains of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, and even more preferably 18 to 22 carbon atoms. Such di-long chain alkyl quaternized ammonium salts useful herein have the formula (I):
[0033] [ka] (In the formula, R 71 , R 72 , R 73 and R 74 two of R are selected from an aliphatic group having 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, more preferably 18 to 22 carbon atoms, or an aromatic group having up to about 30 carbon atoms, an alkoxy group, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group; 71 , R 72, R 73 , and R 74 the remainder are independently selected from aliphatic groups of 1 to about 8 carbon atoms, preferably 1 to 3 carbon atoms, or aromatic groups having up to about 8 carbon atoms, alkoxy groups, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups; and X - is a salt-forming anion selected from the group consisting of halides (e.g., chloride and bromide), C1-C4 alkyl sulfates (e.g., methosulfate and ethosulfate), and mixtures thereof. The aliphatic groups can contain, in addition to carbon and hydrogen atoms, ether linking groups, and other groups such as amino groups. Longer chain aliphatic groups, e.g., those having about 16 carbon atoms or more, can be saturated or unsaturated. Preferably, R 71 , R 72 , R 73 , and R 74 two of R are selected from alkyl groups of 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, more preferably 18 to 22 carbon atoms; 71 , R 72 , R 73 , and R 74 the remainder are independently selected from CH3, C2H5, C2H4OH, CH2C6H5, and mixtures thereof.
[0034] Such preferred di-long-chain alkyl cationic surfactants include, for example, dialkyl(14-18)dimethylammonium chloride, ditallowalkyldimethylammonium chloride, dihydro-added tallowalkyldimethylammonium chloride, distearyldimethylammonium chloride, and dicetyldimethylammonium chloride.
[0035] Aqueous Carrier The compositions of the present invention include an aqueous carrier, the level and type of carrier being selected according to compatibility with other ingredients and other desired properties of the product.
[0036] Carriers useful in the present invention include water and aqueous solutions of lower alkyl alcohols. The lower alkyl alcohols useful herein are monohydric alcohols having 1 to 6 carbons, more preferably ethanol and isopropanol.
[0037] Preferably, the aqueous carrier is substantially water. Preferably, deionized water is used. Water from natural sources containing mineral cations can also be used, depending on the desired properties of the product. Generally, the compositions of the present invention comprise about 40% to about 99%, preferably about 50% to about 95%, more preferably about 70% to about 90%, and more preferably about 80% to about 90% of the aqueous carrier, preferably water.
[0038] Gel Matrix Preferably, in the present invention, the gel matrix is formed by a cationic surfactant, a high-melting-point fatty compound, and an aqueous carrier. The gel matrix is suitable for providing various conditioning effects, such as a smooth feeling during application to wet hair and soft and moist feeling on dry hair. Here, the gel matrix refers to a lamellar gel network, lamellar or vesicle solid crystals, unilamellar vesicles, multilamellar vesicles, and mixtures thereof.
[0039] Preferably, when forming a gel matrix, the cationic surfactant and high melting point fatty compound are contained at a level such that the weight ratio of cationic surfactant to high melting point fatty compound is in the range of about 2:1 to about 20:1, more preferably about 2:1 to about 10:1, even more preferably about 2.5:1 to about 9:1, and even more preferably about 2.5:1 to about 7.1, from the viewpoint of providing improved wet conditioning effects.
[0040] Preferably, when a gel matrix is formed, the composition of the present invention is substantially free of anionic surfactants from the viewpoint of gel matrix stability. In the present invention, "the composition is substantially free of anionic surfactants" means that the composition does not contain anionic surfactants, or, if the composition contains anionic surfactants, the level of such anionic surfactants is very low. In the present invention, the total concentration of such anionic surfactants, if present, is preferably 1% by weight or less of the composition, more preferably 0.5% by weight or less, and even more preferably 0.1% by weight or less. Most preferably, the total concentration of such anionic surfactants is 0% by weight of the composition.
[0041] Silicone Compounds The compositions of the present invention may further contain a silicone compound. It is believed that the silicone compound can impart smoothness and softness to dry hair. The silicone compound herein is preferably used at a level of from about 0.1% to about 20% by weight of the composition, more preferably from about 0.5% to about 10% by weight, and even more preferably from about 1% to about 8% by weight.
[0042] Preferably, the silicone compound has an average particle size in the composition of from about 1 micrometer to about 50 micrometers.
[0043] The silicone compounds useful herein, whether as a single compound, as a blend or mixture of at least two silicone compounds, or as a blend or mixture of at least one silicone compound and at least one solvent, preferably have a viscosity of from about 1,000 to about 2,000,000 mPa·s at 25° C.
[0044] Viscosity can be measured using a glass capillary viscometer as described in Dow Corning Corporate Test Method CTM0004 (July 20, 1970). Suitable silicone fluids include polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes, polyethersiloxane copolymers, amino-substituted silicones, quaternized silicones, and mixtures thereof. Other nonvolatile silicone compounds with conditioning properties can also be used.
[0045] Preferred polyalkylsiloxanes include, for example, polydimethylsiloxane, polydiethylsiloxane, and polymethylphenylsiloxane. Polydimethylsiloxane, also known as dimethicone, is especially preferred.
[0046] The polyalkylsiloxanes described above can be used as mixtures with silicone compounds having lower viscosities. Such mixtures preferably have a viscosity of about 1,000 mPa·s to about 100,000 mPa·s, more preferably about 5,000 mPa·s to about 50,000 mPa·s. Such mixtures preferably contain (i) a first silicone having a viscosity of about 100,000 mPa·s to about 30,000,000 mPa·s, preferably about 100,000 mPa·s to about 20,000,000 mPa·s, at 25°C, and (ii) a second silicone having a viscosity of about 5 mPa·s to about 10,000 mPa·s, preferably about 5 mPa·s to about 5,000 mPa·s, at 25°C. Such mixtures useful herein include, for example, a blend of dimethicone having a viscosity of 18,000,000 mPa·s and dimethicone having a viscosity of 200 mPa·s, available from GE Toshiba, and a blend of dimethicone having a viscosity of 18,000,000 mPa·s and cyclopentasiloxane, available from GE Toshiba.
[0047] Silicone compounds useful herein also include silicone gums. As used herein, the term "silicone gum" refers to polyorganosiloxane materials having a viscosity of 1,000,000 centistokes or greater at 25°C. It is recognized that the silicone gums described herein may overlap somewhat with the silicone compounds disclosed above. This overlap is not intended to limit any of these materials. "Silicone gums" typically have a mass molecular weight greater than about 200,000, generally from about 200,000 to about 1,000,000. Specific examples include polydimethylsiloxane, poly(dimethylsiloxane-methylvinylsiloxane) copolymer, poly(dimethylsiloxane-diphenylsiloxane-methylvinylsiloxane) copolymer, and mixtures thereof. Silicone gums are available, for example, as blends with silicone compounds having lower viscosities. Such blends useful herein include, for example, gum / cyclomethicone blends available from Shin-Etsu.
[0048] Silicone compounds useful herein also include amino-substituted materials. Preferred aminosilicones include, for example, those having the general formula (I): (R1) a G 3-a -Si-(-OSiG2) n -(-OSiG b (R1) 2-b ) m -O-SiG 3-a (R1) a The following are examples of products that are suitable for In the formula, G is hydrogen, phenyl, hydroxy, or C1-C8 alkyl, preferably methyl; a is 0 or an integer having a value of 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; neither a nor m is 0; and R1 is a group represented by the general formula CqH 2qis a monovalent radical conforming to L, where q is an integer having a value of 2 to 8, and L is -N(R2)CH2-CH2-N(R2)2, -N(R2)2, -N(R2)3A - , -N(R2)CH2-CH2-NR2H2A - and R2 is selected from the group consisting of hydrogen, phenyl, benzyl, or a saturated hydrocarbon radical, preferably from about C1 to about C 20 is an alkyl radical of A - is a halide ion.
[0049] A highly preferred aminosilicone corresponds to formula (I), where m = 0, a = 1, q = 3, and 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 aminosilicone corresponds to formula (I), where m = 0, a = 1, q = 3, and 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. Because one or both ends of the silicone chain are terminated with a nitrogen-containing group, such highly preferred aminosilicones can be referred to as terminal aminosilicones.
[0050] When the aminosilicone described above is incorporated into a composition, it can be mixed with a solvent having a lower viscosity. Such solvents include, for example, polar or non-polar, volatile or non-volatile oils. Such oils include, for example, silicone oils, hydrocarbons, and esters. Among these various solvents, preferred are those selected from the group consisting of non-polar volatile hydrocarbons, volatile cyclic silicones, non-volatile linear silicones, and mixtures thereof. The non-volatile linear silicones useful herein have a viscosity of about 1 to about 20,000 centistokes at 25°C, preferably about 20 to about 10,000 centistokes. Among preferred solvents, non-polar volatile hydrocarbons, particularly non-polar volatile isoparaffins, are highly preferred, from the viewpoint of reducing the viscosity of the aminosilicone and providing improved hair conditioning effects, such as reduced friction on dry hair. Such a mixture preferably has a viscosity of about 1,000 mPa·s to about 100,000 mPa·s, more preferably about 5,000 mPa·s to about 50,000 mPa·s.
[0051] Other suitable alkylamino-substituted silicone compounds include those having alkylamino substitution as pendant groups on the silicone backbone. Highly preferred are those known as "amodimethicones." Commercially available amodimethicones useful herein include, for example, BY16-872 available from Dow Corning.
[0052] The silicone compound can further be incorporated into the composition of the present invention in the form of an emulsion, where the emulsion is made at the synthesis stage by mechanical mixing or by emulsion polymerization with or without a surfactant selected from anionic surfactants, nonionic surfactants, cationic surfactants, and mixtures thereof.
[0053] Silicone polymers containing quaternary groups Silicone compounds useful herein include, for example, quaternary-containing silicone polymers containing terminal ester groups, with viscosities up to 100,000 mPa·s and D-block lengths of greater than 200 D units. Without being bound by theory, this low viscosity silicone polymer provides improved conditioning benefits such as smooth feel, reduced friction, and protection from hair damage, while eliminating the need for silicone blends.
[0054] Structurally, the silicone polymer is a polyorganosiloxane compound containing one or more quaternary ammonium groups, at least one silicone block containing 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 silicone block may contain 300 to 500 siloxane units.
[0055] The silicone polymer is present in an amount of from about 0.05% to about 15%, preferably from about 0.1% to about 10%, more preferably from about 0.15% to about 5%, and even more preferably from about 0.2% to about 4% by weight of the composition.
[0056] In a preferred embodiment, the polyorganosiloxane compound has the general formula (Ia) and (Ib): MY-[-(N + R2-TN + R2)-Y-] m -[-(NR 2 -AE-A'-NR 2 )-Y-] k -M (Ia) MY-[-(N + R2-TN + R2)-Y-] m -[-(N + R 2 2-AE-A'-N + R 2 2)-Y-] k -M (Ib) During the ceremony, m is >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, and even more specifically 1 to 10; k is 0 or an average value of from greater than 0 to 50, or preferably from 1 to 20, or even more preferably from 1 to 10; M represents a terminal group containing a terminal ester group selected from the following: -OC(O)-Z -OS(O)2-Z -OS(O2)OZ -OP(O)(OZ)OH, -OP(O)(OZ)2 Z represents a terminal group containing a terminal ester group selected from monovalent organic residues having up to 40 carbon atoms, optionally containing one or more heteroatoms.
[0057] A and A' are each independently selected from a single bond or a divalent organic group having up to 10 carbon atoms and one or more heteroatoms; E is a polyalkylene oxide group of the general formula: -[CH2CH2O] q -[CH2CH(CH3)O] r -[CH2CH(C2H5)O] s - In the formula, q=0 to 200, r=0 to 200, s=0 to 200, and q+r+s=1 to 600.
[0058] R 2 is selected from hydrogen or R; R is selected from monovalent organic groups having up to 22 carbon atoms and optionally one or more heteroatoms, the free valence on the nitrogen atom being attached to a carbon atom; Y is a group of the formula: -KSK- and -AE-A'- or -A'-EA- (Wherein S is
[0059] [ka] and In the formula, R1 is C1 to C 22 Alkyl, C1-C 22 It is a fluoroalkyl or aryl, and n is 200 to 1000. When several S groups are present in the polyorganosiloxane compound, they may be the same or different.
[0060] K is a divalent or trivalent linear, cyclic, and / or branched C2-C 40 A hydrocarbon residue, which may optionally be -O-, -NH-, trivalent N, -NR 1 interrupted by -, -C(O)-, -C(S)- and optionally substituted by -OH, R 1 is defined as above, T is selected from divalent organic groups having up to 20 carbon atoms and one or more heteroatoms.
[0061] The residues K may be identical or different. In the -KSK- moiety, the residue K is bonded to the silicon atom of the residue S via a C-Si- bond.
[0062] In the polyorganosiloxane compound, the amine group (-(NR 2 -AE-A'-NR 2 Due to the possible presence of amine groups, such compounds may have protonated ammonium groups resulting from the protonation of such amine groups with organic or inorganic acids. Such compounds are sometimes referred to as acid addition salts of polyorganosiloxane compounds.
[0063] In a preferred embodiment, the molar ratio of quaternary ammonium groups b) to terminal ester groups c) is less than 100:20, even more preferably less than 100:30, and most preferably less than 100:50. 13 It can be determined by C-NMR.
[0064] In a further embodiment, the polyorganosiloxane composition comprises: 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 oxide group (as defined above); B) may comprise at least one polyorganosiloxane compound different from compound A), which comprises at least one terminal ester group.
[0065] In the definition of component A), reference can be made to the description of the polyorganosiloxane compound of the present invention. Polyorganosiloxane compound B) differs from polyorganosiloxane compound A) in that it preferably does not contain quaternary ammonium groups. Preferred polyorganosiloxane compound B) is obtained by reacting a monofunctional organic acid, especially a carboxylic acid, with a polyorganosiloxane containing a bisepoxide.
[0066] In the polyorganosiloxane composition, the weight ratio of compound A) to compound B) is preferably less than 90:10. In other words, the content of component B) is at least 10% by weight. In a further preferred embodiment of the polyorganosiloxane composition, in compound A), the molar ratio of quaternary ammonium groups b) to terminal ester groups c) is less than 100:10, even more preferably less than 100:15, and most preferably less than 100:20.
[0067] Silicone polymers are -1 The viscosity of the undiluted silicone polymer may range from 500 to 100,000 mPa·s, or preferably from 500 to 70,000 mPa·s, or more preferably from 500 to 50,000 mPa·s, or even more preferably from 500 to 20,000 mPa·s. In a further embodiment, the viscosity of the undiluted ... even more preferably from 500 to 20,000 mPa·s, at 20°C and a shear rate of 0.1 s.-1 When determined by the above equation, the viscosity may be in the range of 500 to 10,000 mPa·s, or preferably in the range of 500 to 5000 mPa·s.
[0068] In addition to the silicone polymers listed above, the following preferred compositions are provided below: For example, in the polyalkylene oxide group E of the general formula: -[CH2CH2O] q -[CH2CH(CH3)O] r -[CH2CH(C2H5)O] s - q, r and s can be defined as follows: q is 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20; r is 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20; s is 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20; q+r+s is 1-600, or preferably 1-100, or more preferably 1-50, or even more preferably 1-40.
[0069] In the polyorganosiloxane structural unit having the general formula S,
[0070] [ka] In the formula, R 1 is C1~C 22 Alkyl, C1-C 22 fluoroalkyl or aryl, n is 200 to 1000, or preferably 300 to 500, and K (in the -KSK- group) is preferably a divalent or trivalent linear, cyclic, or branched C2-C 20 A hydrocarbon residue, optionally -O-, -NH-, trivalent N, -NR 1 It is interrupted by -, -C(O)-, -C(S)- and optionally substituted by -OH.
[0071] In specific embodiments, R 1 is C1~C 18 Alkyl, C1-C 18 fluoroalkyl and aryl. 1 is preferably C1 to C 18 alkyl, C1-C6 fluoroalkyl, and aryl. 1 is more preferably C1-C6 alkyl, C1-C6 fluoroalkyl, even more preferably C1-C4 fluoroalkyl, and phenyl. Most preferably, R 1 are methyl, ethyl, trifluoropropyl, and phenyl.
[0072] As used herein, "C1-C 22 The term "alkyl" means an aliphatic hydrocarbon group having 1 to 22 carbon atoms, which may be straight-chained or branched. Examples include methyl, ethyl, propyl, n-butyl, pentyl, hexyl, heptyl, nonyl, decyl, undecyl, isopropyl, neopentyl, and 1,2,3-trimethylhexyl moieties.
[0073] Furthermore, as used herein, "C1-C 22 The term "fluoroalkyl" means an aliphatic hydrocarbon compound having 1 to 22 carbon atoms, which may be linear or branched, and which is substituted with at least one fluorine atom. Suitable examples are monofluormethyl, monofluoroethyl, 1,1,1-trifluorethyl, perfluoroethyl, 1,1,1-trifluoropropyl, and 1,2,2-trifluorobutyl.
[0074] Furthermore, the term "aryl" refers to phenyl that is unsubstituted or substituted one or several 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.
[0075] For embodiments of polyorganosiloxanes, the positive charge derived from the ammonium group can be provided by an inorganic anion such as chloride, bromide, hydrogen sulfate, sulfate, or a C1-C 30 Carboxylate derivatives derived from carboxylic acids, such as acetate, propionate, octanoate, among others, C 10 ~C 18 Carboxylate derived from carboxylic acid, for example, decanoate, dodecanoate, tetradecanoate, hexadecanoate, octadecanoate, and oleate, alkyl polyether carboxylate, alkyl sulfonate, aryl sulfonate, alkyl aryl sulfonate, alkyl sulfate, alkyl polyether sulfate, phosphate derived from monoalkyl / aryl phosphate ester and dialkyl / aryl phosphate ester, neutralized with organic anions such as. The properties of the polyorganosiloxane compound can be modified, inter alia, based on the choice of acid used.
[0076] Quaternary ammonium groups are typically produced by reacting a di-tertiary amine with an alkylating agent, especially selected from diepoxides (sometimes called bisepoxides), in the presence of a monocarboxylic acid and a difunctional dihalogen alkyl compound.
[0077] In a preferred embodiment, the polyorganosiloxane compound has the following general formulas (Ia) and (Ib): MY-[-(N + R2-TN + R2)-Y-] m -[-(NR 2 -AE-A'-NR 2 )-Y-] k -M (Ia) MY-[-(N + R2-TN + R2)-Y-] m -[-(N + R 2 2-AE-A'-N + R 2 2)-Y-] k -M (Ib) wherein each group is as defined above, but the repeat units are in a statistical arrangement (i.e., not in a block-like arrangement).
[0078] In a further preferred embodiment, the polyorganosiloxane compound also has the following general formula (IIa) or (IIb): MY-[-N + R2-Y-] m -[-(NR 2 -AE-A'-NR 2 )-Y-] k -M (IIa) MY-[-N + R2-Y-] m -[-(N + R 2 2-AE-A'-N + R 2 2)-Y-] k -M (IIb) wherein each group is as defined above. Also, in such formulas, the repeat units are typically in a statistical arrangement (i.e., not in a block-like arrangement). where M, as defined above, is -OC(O)-Z, -OS(O)2-Z, -OS(O2)OZ, -OP(O)(OZ)OH, -OP(O)(OZ)2, Z is a linear, cyclic, or branched saturated or unsaturated C1-C 20 , or preferably C2 to C 18 or even more preferably, a hydrocarbon group interrupted by one or more -O- or -C(O)- and optionally substituted with -OH. In specific embodiments, M is -OC(O)-Z, which arises from a normal carboxylic acid, particularly one having more than 10 carbon atoms, such as, for example, dodecanoic acid.
[0079] In further embodiments, the molar ratio of polyorganosiloxane-containing repeating groups -KSK- to polyalkylene repeating groups -AE-A'- or -A'-EA- is between 100:1 and 1:100, or preferably between 20:1 and 1:20, or more preferably between 10:1 and 1:10.
[0080] -(N + R2-TN + In the R2)- group, R is a monovalent linear, cyclic, or branched C1-C6 alkyl group which may be interrupted by one or more -O-, -C(O)-, and may be substituted by -OH. 20 may represent a hydrocarbon radical, where T is a divalent linear, cyclic, or branched C1-C alkyl group, optionally interrupted by -O-, -C(O)-, and optionally substituted by hydroxyl. 20 May represent a hydrocarbon radical.
[0081] The above polyorganosiloxane compound containing quaternary ammonium functional groups and ester functional groups may also include: 1) individual molecules containing quaternary ammonium functional groups and not containing ester functional groups; 2) molecules containing quaternary ammonium functional groups and ester functional groups; and 3) molecules containing ester functional groups and not containing quaternary ammonium functional groups. Although not limited by structure, the above polyorganosiloxane compound containing quaternary ammonium functional groups and ester functional groups should be understood as a mixture of molecules containing a specific average amount and ratio of both moieties.
[0082] A variety of monofunctional organic acids can be used to obtain the esters. Exemplary embodiments include C1-C 30 Carboxylic acids, e.g., C2, C3, C8 acids, C 10 ~C 18 Carboxylic acids, e.g., C 12 , C 14 , C 16 Acid, saturated, unsaturated, and hydroxyl-functionalized C 18Acids include alkyl polyether carboxylic acids, alkyl sulfonic acids, aryl sulfonic acids, alkylaryl sulfonic acids, alkyl sulfates, alkyl polyether sulfates, monoalkyl / aryl phosphate esters, and dialkyl / aryl phosphate esters.
[0083] The compositions of the present invention may, in some embodiments, be substantially free or completely free of silicone.
[0084] Rheology Modifiers The compositions of the present invention may contain 0 to 2 wt %, 0.05 to 1.5 wt %, 0.1 to 1.2 wt %, or 0.1 to 1 wt % of a polymer as a rheology modifier to stabilize the composition.
[0085] The polymer may be a gum(s) selected from the group consisting of sclerotium gum, xanthan gum, guar gum, locust bean gum, tragacanth gum, acacia gum, agar gum, alging gum, gellan gum, carob gum, karaya gum, biosaccharide gum, calcium carrageenan, potassium carrageenan, sodium carrageenan, potassium alginate, ammonium alginate, calcium alginate, and any combination thereof.
[0086] The polymer in the composition may be sclerotium gum.
[0087] Non-limiting examples of suitable rheology modifiers include water-soluble polymers, including, but not limited to: (1) plant-based polymers such as gum arabic, gum tragacanth, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed, algae colloid, starch (rice, corn, potato, or wheat), and glycyrrhizic acid; (2) microbial-based polymers such as xanthan gum, dextran, succinoglucan, and pullulan; and (3) animal-based polymers such as collagen, casein, albumin, and gelatin.
[0088] Examples of semi-synthetic water-soluble polymers include, but are not limited to, (1) starch-based polymers, such as carboxymethyl starch and methylhydroxypropyl starch; (2) cellulose-based polymers, such as methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, sodium carboxymethylcellulose (CMC), crystalline cellulose, and cellulose powder; and (3) alginate-based polymers, such as sodium alginate and propylene glycol alginate. Examples of synthetic water-soluble polymers include: (1) vinyl polymers, such as polyvinyl alcohol, polyvinyl methyl ether polymers, polyvinylpyrrolidone, and carboxyvinyl polymers (CARBOPOL 940, CARBOPOL 941); (2) polyoxyethylene polymers, such as polyethylene glycol 20,000, polyethylene glycol 6,000, and polyethylene glycol 4,000; (3) copolymers, such as polyoxyethylene and polyoxypropylene copolymers, and PEG / PPG methyl ether; and (4) acrylic polymers, such as poly(sodium acrylate), poly(ethyl acrylate), polyacrylamide, polyethyleneimine, and cationic polymers. Water-swellable clay minerals are nonionic water-soluble polymers and correspond to a type of colloid-containing aluminum silicate with a three-layer structure. More specifically, these examples include bentonite, montmorillonite, beidellite, nontronite, saponite, hectorite, magnesium aluminum silicate, and silicic anhydride.
[0089] Additional ingredients The compositions of the present invention may also contain other additional ingredients, which can be selected by those skilled in the art depending on the desired properties of the final product and which are suitable for making the composition more cosmetically or aesthetically acceptable or for providing additional usage benefits to the composition. Such other additional ingredients are generally used individually at concentrations of from about 0.001% to about 10% by weight of the composition, preferably up to about 5% by weight.
[0090] A wide variety of other additional ingredients can be incorporated into the compositions of the present invention. These include other conditioning agents, such as aloe vera gel; aloe barbadensis leaf juice; Ecklonia radiata (Ecklonia japonica) leaf juice; and other conditioning agents, such as aloe vera gel, aloe barbadensis leaf juice, Ecklonia japonica (Ecklonia japonica) ... radiata extract; natural oils and waxes such as shea butter, safflower oil, cocoa butter, orange peel wax, olive oil, macadamia seed oil, evening primrose oil, crambe abyssinica seed oil, argon oil, camellia oil, sunflower oil, almond oil, argania spinosa 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, white bayberry 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; Peptein brand available from Hormel 2000 hydrolyzed collagen, vitamin E under the trade name Emix-d available from Eisai, panthenol available from Roche, panthenyl ethyl ether available from Roche, hydrolyzed keratin, proteins, plant extracts, and nutrients; pH adjusters (e.g., citric acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate); general salts (e.g., potassium acetate and sodium chloride), coloring agents (e.g., any of the FD&C or D&C dyes); fragrance; and sequestrants (e.g., disodium ethylenediaminetetraacetate ); and ultraviolet and infrared blocking and absorbing agents (e.g., benzophenone, octyl salicylate); antioxidants such as rosemary, tocopherol, vitamin E, vitamin A, and tea extract; amino acids (histidine, l-arginine); preservatives (sodium benzoate, phenoxyethanol, benzyl alcohol, methylparaben, propylparaben, methylchloroisothiazolinone, methylisothiazolinone, disodium ethylenediaminetetraacetic acid (EDTA), and imidazolidinyl urea); and antidandruff agents (zinc pyrithione, piroctone olamine);Nonionic surfactants (such as mono-9-octadecanoate poly(oxy-1,2-ethanediyl), supplied as Tween 20), and buffers (such as aminomethylpropanol), and combinations thereof;
[0091] Some embodiments may not include any amide polyacrylate.
[0092] Product form The composition of the present invention may be in the form of a rinse-off product or a leave-on product, and can be formulated in a variety of product forms, including, but not limited to, creams, gels, emulsions, mousses, and sprays. The composition of the present invention is particularly suitable for hair conditioners, especially leave-on, leave-in, and / or no-rinse hair conditioners. Leave-on and leave-in hair conditioners are generally used on dry, semi-wet, and / or wet hair without rinsing the conditioner. By no-rinse hair conditioner, what is meant herein is a hair conditioner that is used on semi-wet to wet hair, preferably in the bathroom after shampooing, without rinsing the conditioner. The conditioning composition of the present invention is particularly suitable for rinse-off hair conditioners. Such compositions are preferably used by the following process: (i) applying an effective amount of the conditioning composition to the hair to condition the hair after shampooing the hair; and (ii) then rinsing the hair. [Example]
[0093] The following examples further describe and demonstrate embodiments within the scope of the present invention. These examples are provided for illustrative purposes only and should not be construed as limiting the invention, as many variations thereof are possible without departing from the spirit and scope of the invention. Where applicable, components are identified by chemical or CTFA name, or are otherwise defined below.
[0094] Preparation method The embodiments disclosed and represented by Examples 1 to 11 are hair conditioning compositions of the present invention that are particularly useful for rinse-off applications. Such embodiments have many advantages. For example, such embodiments provide improved conditioning to damaged hair without making it greasy or heavy. These advantages can be understood by comparing Examples 1 to 11 of the present invention and Comparative Examples C1 to C3.
[0095] The hair care compositions of Examples 1 to 11 of the present invention and the comparative hair care compositions C1 to C3 can be prepared by any conventional method known in the art. The compositions of the present invention have a creamy texture and are not solid or in a solid form.
[0096] [Table 1]
[0097] [Table 2]
[0098] [Table 3]
[0099] As can be seen in Table 1, when using salon-treated hair samples, the inventive compositions resulted in increased silicone deposition and reduced sebum compared to the comparative compositions. Silicone deposition on the ends of the inventive compositions was increased relative to the comparative compositions. Similarly, when using lab-treated hair swatches, the inventive compositions resulted in increased silicone deposition relative to the comparative compositions.
[0100] Test Method Hair, silicone, and sebum samples were collected after salon treatment. For this study, 14 panelists who self-identified as having oily and damaged hair were recruited. The panelists were divided into two groups, one group using Comparative Example III and the other group using Example 6 of the present invention. The panelists were randomized and treated by two different stylists throughout the one-week study period. The panelists' hair was treated and collected by the stylists at four time points: (a) baseline (after resetting the hair with shampoo), (b) after the first conditioner treatment cycle, (c) 48 hours after treatment, and (d) after the third conditioner treatment cycle.
[0101] Silicone Measurement Then, half of the collected hair is extracted using diluted tetrahydrofuran (6% tetrahydrofuran in water).The obtained test solution is immobilized with internal standard, and analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES) against the matrix-matched calibration curve made from the target silicone.This uses microwave digestion to decompose hair sample, and then ICP-OES is used to determine silicon content.Results are reported as delta (increase / decrease) value (n=7 for each measurement) relative to baseline (after shampoo) deposition level (μg / g).
[0102] Sebum measurement The remaining half of the collected hair was extracted using 10 mL of hexane per 0.1 g of hair. The solvent containing hair mixture was vortexed for 5 minutes at 1700 rpm in a pulsed multi-tube vortex mixer. The above steps were then repeated using 5 mL of hexane per 0.1 g of hair. The two extracts were dried, combined, and then reconstituted in 2000 μl of hexane. The resulting test solution was then subjected to measurement using gas chromatography / flame ionization detection (GC / FID). Results are reported as delta (increase / decrease) values relative to the baseline (post-shampoo) deposition level (μg / g) (n=7 for each measurement).
[0103] Silicone Deposition at Hair Tips Measured by Fourier Transform Infrared (FTIR) Spectroscopy To determine the amount of silicone deposition on the damaged tip, salon-treated hair samples were measured four times, each at 3–4 cm from the tip, using a mid-IR ATR-FTIR (Perkin Elmer Frontier FTIR with a Specac Golden Gate single bounce diamond crystal ATR accessory). The measurement range was 8 scans, and 4 cm. -1 Spectral resolution: 4000-600 cm in absorption mode -1 The ATR clamp pressure was controlled using a fixed pressure torque of 70 Ncm for all switch measurements. Silicone levels were determined using a chemometric model (classical least squares and multi-curve resolution) including silicone and hair keratin spectral concentrations, or Si-O-Si (975-1150 cm) divided by the amide 2 peak area from hair keratin. -1 ), and Si-CH3 (750-900cm -1 The specific characteristic peaks of silicones, such as
[0104] Laboratory treated hair swatches and silicone measurements. A 2-gram swatch of low-lift Oriental hair, 6 inches long, was used for the measurements. The water temperature was set at 100°F, the hardness was 7 grains per gallon, and the flow rate was 5.68 liters per minute. For shampooing, 0.2 grams of shampoo was applied to the center of the hair switch, squeezed for 30 seconds, cleansing the entire length of the hair, and rinsed for 30 seconds. After shampooing, 0.2 grams of conditioner was applied to the center of the hair switch, covering the entire length of the hair. The conditioner was applied to the entire hair switch for 30 seconds, followed by a 30-second rinse. The treated hair switch was allowed to dry overnight in air at 23°C in a low humidity (45%) environment. The above shampoo and conditioner treatments were repeated five times on the same hair switch. The treated 2-gram hair swatch was cut into small pieces and subjected to extraction with an organic solvent (1:1 hexane / IPA) for silicone deposited on the hair surface. The silicone solution extracted from the hair was then measured by inductively coupled plasma optical emission spectroscopy (ICP-OES) (Agilent 5110 synchronous dual view ICP-OES). The results obtained are reported as Si deposited on the hair (μg / g hair) in triplicate (n=3) for each sample.
[0105] shear stress This test uses a controlled stress rotational rheometer (such as a Discovery HR-2, TA Instruments, New Castle, Del., USA, or equivalent) with sample temperature control (using a Peltier cooler and resistive heater). The rheometer is operated in a parallel plate configuration with a 40 mm 2° aluminum cone-plate tool. The rheometer is set to 25°C. Approximately 2 mL of sample is gently placed from the sample jar onto the Peltier plate using a spatula to avoid any shear forces that would alter the product structure. After the sample is placed, excess sample is trimmed when the gap reaches 50 μm. The sample is then heated at 25°C for 10 s. -1 The shear rate was adjusted for 60 seconds, and the specimen was equilibrated at 25°C for 300 seconds before starting the measurement. The test was started using the rheometer, and the strain rate was increased to 0.1 s. -1~1200s -1 Generate a flow curve by increasing the flow rate in logarithmic steps up to 950S. -1 The shear stress at high shear rates was measured and extracted using Trios software (provided by TA Instruments) and is applicable to other comparable rheology software.
[0106] combination A. A hair care composition comprising: a. Fatty alcohols and b. Cationic surfactants and c. an aqueous carrier; the ratio of the fatty alcohol to the cationic surfactant is at least 1:2; A hair care composition, wherein the composition is substantially free of anionic surfactants. B. The composition of paragraph A, wherein the ratio of the fatty alcohol to the cationic surfactant is at least about 1:2.5. C. The composition of paragraphs A and B, wherein the ratio of fatty alcohol to cationic surfactant is from about 1:2 to about 1:10. D. The composition of paragraphs A-C, wherein the composition comprises at least about 50% aqueous carrier. E. The composition of paragraphs A-D, wherein the shear stress of the composition is at least about 100 Pa. F. The composition of paragraphs A through E, wherein the fatty alcohol has from about 12 to about 30 carbon atoms and is saturated. G. The composition of any of paragraphs A-F, wherein the fatty alcohol is chosen from cetyl alcohol, stearyl alcohol, behenyl alcohol, 2-hexyl-1-decanol, 2-octyl-1-dodecanol, and mixtures thereof. H. The composition of any of paragraphs A-G, wherein the fatty alcohol is chosen from cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof. I. The composition of paragraphs AH, wherein the cationic surfactant has from about 12 to about 30 carbon atoms and is saturated. J. The composition of paragraphs AI, wherein the cationic surfactant is chosen from cetyltrimethylammonium chloride, behentrimonium methosulfate, behentrimonium chloride, stearyltrimethylammonium chloride, and mixtures thereof. K. The composition of paragraphs AJ, wherein the cationic surfactant is from about 0.1% to about 25% by weight of the composition. L. The composition of paragraphs A-K, wherein the fatty alcohol is 0.05% to 12.5% by weight of the composition. M. The composition of paragraphs A-L, wherein the composition does not contain a propellant. N. The composition of paragraphs A through M, wherein the composition is silicone-free. O. The composition of paragraphs A-N, wherein the composition is free of silicone conditioning agents and non-silicone conditioning agents. P. The composition of paragraphs A-N, wherein the cationic surfactant is an amine. Q. The composition of paragraphs A-P, wherein the cationic surfactant is chosen from stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, and mixtures thereof. The composition of paragraphs A-Q, further comprising an acid selected from the group consisting of 1 / 1-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, citric acid, 1 / 1-glutamic acid hydrochloride, maleic acid, salicylic acid, aspartic acid, and mixtures thereof. S. The composition of paragraphs A-R, wherein the composition is a leave-on conditioner. T. The composition of paragraphs A-S, wherein the composition is a rinse-off hair conditioner.
[0107] The dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
[0108] All documents cited herein, including any cross-referenced or related patents or patent applications, and any patent applications or patents to which this application claims priority or benefit, are incorporated herein by reference in their entirety, unless expressly stated to the contrary. The citation of any document shall not be deemed to be prior art to any invention disclosed or claimed herein, or to teach, suggest, or disclose any such invention, either alone or in combination with any other reference or references. Furthermore, if any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall control.
[0109] While particular embodiments of the present invention have been illustrated and described, it would be obvious 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. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
Claims
1. 1. A hair care composition comprising: a. an aliphatic alcohol; b. a cationic surfactant; c. an aqueous carrier; the ratio of the fatty alcohol to the cationic surfactant is at least 1:2; A hair care composition, wherein the composition does not contain any anionic surfactants.
2. 2. The composition of claim 1, wherein the ratio of said fatty alcohol to said cationic surfactant is at least 1:2.5, preferably from 1:2 to 1:
10.
3. The composition of any one of claims 1 to 2, wherein the composition comprises at least about 50% of the aqueous carrier.
4. The composition according to any one of claims 1 to 3, wherein the shear stress of the composition is at least 100 Pa.
5. 5. The composition according to any one of claims 1 to 4, wherein the fatty alcohol is a C12 to C30 saturated fatty alcohol, preferably the fatty alcohol is selected from cetyl alcohol, stearyl alcohol, behenyl alcohol, 2-hexyl-1-decanol, 2-octyl-1-dodecanol, and mixtures thereof, more preferably the fatty alcohol is selected from cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof.
6. The composition of any one of claims 1 to 5, wherein the cationic surfactant is present at 0.1% to 25% by weight of the composition.
7. The composition of any one of claims 1 to 6, wherein the fatty alcohol is present in an amount of from 0.05% to 12.5% by weight of the composition.
8. The composition of any one of claims 1 to 7, wherein the composition is free of at least one of a propellant, a silicone, and a conditioning agent.
9. 9. The composition of any one of claims 1 to 8, further comprising an acid selected from 1-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, citric acid, 1-glutamic acid hydrochloride, maleic acid, salicylic acid, aspartic acid, and mixtures thereof.
10. The composition according to any one of claims 1 to 9, wherein the composition is a leave-on hair conditioner.
11. 11. A composition according to any one of claims 1 to 10, wherein the cationic surfactant comprises a C12 to C30 saturated fatty acid tail, preferably the cationic surfactant is selected from cetyltrimethylammonium chloride, behentrimonium methosulfate, behentrimonium chloride, stearyltrimethylammonium chloride, and mixtures thereof.
12. 11. The composition of any one of claims 1 to 10, wherein the cationic surfactant is an amine, preferably the cationic surfactant is selected from stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, and mixtures thereof.
Citation Information
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