Hair conditioning composition

Abstract

1. An anhydrous hair care composition comprising: about 5% to about 50% of a cationic surfactant; a fatty alcohol; and a solvent system comprising at least about 40% of a monoalcohol.

Description

[Technical field]

[0001] The present invention relates to anhydrous hair conditioning compositions. [Background technology]

[0002] Consumers are trying to reduce their impact on the environment. Typically, hair care products are provided in disposable plastic containers, which have a high perceived environmental impact. Refills can be purchased that contain less plastic, but this solution may still not be worthy of consumers' environmental concerns. The most sustainable solution is often an anhydrous solid product, which typically does not perform well in use.

[0003] Concentrated forms can provide hair care solutions that can reduce the environmental impact, however, typical concentrated hair care products have high viscosities and are difficult for consumers to dilute into a workable, homogenous final product. Summary of the Invention [Problem to be solved by the invention]

[0004] Thus, there remains an unmet need for a hair conditioner in a highly concentrated form that can be easily diluted with tap water in the consumer's home, is ready to use, and has good performance. [Means for solving the problem]

[0005] The present invention provides a hair care composition comprising: a. about 5% to about 50% of a cationic surfactant; b. a fatty alcohol; c. a solvent system comprising at least about 40% monoalcohol; Including, It is intended that the composition be anhydrous. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] 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.

[0007] As used herein, "comprising" means that other steps and other ingredients that do not affect the end result may be added. This term encompasses the terms "consisting of" and "consisting essentially of."

[0008] All percentages, parts and ratios are 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.

[0009] As used herein, "mixture" is meant to include the simple combination of materials as well as any compounds that may result from such a combination.

[0010] QS in this specification means up to 100%.

[0011] composition The present invention provides ultra concentrates in durable and reusable dispensing containers that consumers can dilute with tap water at home. The advantages of this technology are: -Low viscosity but high concentration, which makes it easy for consumers to mix at home. - A hair conditioning product is easily formed when diluted with water. -Has the same high efficacy as currently available products -Anhydrous, requiring less plastic packaging than typical conditioner products due to the lack of water. -Relates to environmental and sustainability benefits that are important to many consumers.

[0012] The present invention provides a hair conditioner in a highly concentrated, anhydrous form that can be easily diluted with tap water in the consumer's home due to the low viscosity of the conditioner. The product made is ready to use and has good performance. This low viscosity concentrate can be achieved by seeking the right combination of hair conditioning materials and solvent systems. Although concentrated conditioner actives can be used to form clear, low viscosity liquids, many do not form a gel phase with increased viscosity when mixed with water.

[0013] The concentrated conditioner is anhydrous, clear and has a very low viscosity similar to that of water. It instantly forms a conditioner gel network when mixed with the aqueous phase or water, which is a very surprising and unique change.

[0014] The clear concentrates may also contain fragrances, preservatives, silicones, oils, colorants, etc. to further enhance conditioning properties and consumer desirability.

[0015] A. Solvent Systems Solvent selection is very important: concentrated conditioner actives can be used to form clear, low viscosity liquids, but many do not form a gel phase of increased viscosity when mixed with water.

[0016] The solvent system may include monoalcohol. Suitable examples include, but are not limited to, ethanol, isopropanol, butanol, hexanol, heptanol, dodecanol, oleyl alcohol, and combinations thereof. Sugar alcohol may also be possible as a solvent. Suitable examples of sugar alcohol may be from the diol class, and may include, but are not limited to, propylene glycol, dipropylene glycol, pentylene glycol, hexylene glycol, and combinations thereof.

[0017] The total composition may comprise at least about 40% by weight of the composition of the solvent system. In some embodiments, the conditioner composition may comprise from about 40% to about 95% by weight of the solvent system. In other embodiments, the composition may comprise from about 45%, about 50%, about 55%, or about 60% to about 90%, about 85%, about 80%, about 75%, about 70%, or about 65% by weight of the composition of the solvent system. When both monoalcohols and sugar alcohols are used, the monoalcohols may comprise at least 10% by weight of the composition. In some embodiments, the monoalcohols may be straight-chained or branched.

[0018] In some cases, the absence or too little of monoalcohol in the formulation may prevent the composition from forming a single phase. For example, Comparative Examples C2, C5, C6, and C7 all contain less than 40% monoalcohol or a combination of monoalcohol + sugar alcohol. Also, Comparative Examples C3 and C4 do not use monoalcohol, but only sugar alcohol. Also, in C2-C7, each composition formed is not single phase. All compositions of the present invention provide a single phase. If the anhydrous concentrated conditioner has precipitated solids, i.e., a solid-liquid dispersion, the solids will not rapidly form a gel network when water is added. Hydrating compositions are likely to have solid clumps in the cream, which may be undesirable for the consumer.

[0019] Similarly, when a solvent other than a monoalcohol or a monoalcohol plus sugar alcohol is used, a single-phase anhydrous concentrate composition may be formed, but may not be able to form a gel network upon addition of water, such as Comparative Examples C8, C9, and C10. The monoalcohol used may be liquid at about 25° C. or 30° C.

[0020] Without being bound, the inventors believe that the use of the specific solvents described herein is very important, since the solvent system must have affinity and solubility in water as well as the ability to solubilize the gel network. For example, benzyl alcohol can form clear, low viscosity concentrates, but is not miscible with water (has low solubility in water) itself, whereas monoalcohols and glycols are miscible with water.

[0021] B. Cationic surfactant system The hair care composition described herein may include a cationic surfactant system. The cationic surfactant system may be one cationic surfactant or a mixture of two or more cationic surfactants. Suitable cationic surfactants may include, for example, behentrimonium methosulfate (BTMS), behentrimonium chloride (BTMAC), stearamidopropyl dimethylamine (SAPDMA), behenamidopropyl dimethylamine (BAPDMA), brassy silvaline esylate, and combinations thereof. Other possible cationic surfactants may include brassy silvaline esylate or brassicamidopropyl dimethylamine.

[0022] The cationic surfactant system may be selected from mono-long chain alkyl quaternized ammonium salts; combinations of mono-long chain alkyl quaternized ammonium salts and di-long chain alkyl quaternized ammonium salts; mono-long chain alkyl amidoamine salts; combinations of mono-long chain alkyl amidoamine salts and di-long chain alkyl quaternized ammonium salts, combinations of mono-long chain alkyl amidoamine salts and mono-long chain alkyl quaternized ammonium salts.

[0023] The cationic surfactant system may be included in the hair care composition at a level of from about 5% to about 50%, in some embodiments from about 6%, about 7%, about 8%, about 9%, or from about 10% to about 40%, from about 20% to about 40%, from about 30% to about 50%, or from about 30% to about 50% by weight of the hair care composition.

[0024] Mono long chain alkyl quaternary ammonium salt The monoalkyl quaternized ammonium salt cationic surfactants useful herein are those having one long alkyl chain having from 12 to 30 carbon atoms, from 16 to 24 carbon atoms, and in one embodiment 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 groups, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups having up to about 4 carbon atoms.

[0025] The mono long chain alkyl quaternized ammonium salts useful herein have the following formula (I):

[0026] [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; R 75 , R 76 , R 77 , and R 78 the remainder are independently selected from an alkyl group of 1 to about 4 carbon atoms, or an alkoxy group having up to about 4 carbon atoms, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group; and X -R has a salt-forming anion, such as one selected from halogens (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, sulfate, alkyl sulfate, and alkyl sulfonate groups. The alkyl groups may contain, in addition to carbon and hydrogen atoms, ether and / or ester linkages, as well as other groups such as amino groups. Longer chain alkyl groups, e.g., those having about 12 carbons or more, may be saturated or unsaturated. R 75 , R 76 , R 77 , and R 78 may be selected from alkyl groups of 12 to 30 carbon atoms, 16 to 24 carbon atoms, 18 to 22 carbon atoms, and / or 22 carbon atoms; R 75 , R 76 , R 77 , and R 78 the 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.

[0027] 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.

[0028] Mono long chain alkyl amidoamine salt Mono-long chain alkylamines are also suitable as cationic surfactants. Primary, secondary, and tertiary aliphatic amines are useful. Tertiary amidoamines having alkyl groups of about 12 to about 22 carbons 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, diethylaminoethyl stearamide. Amines useful in the present invention are disclosed in U.S. Pat. No. 4,275,055 (Nachtigal et al.). These amines can also be 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, mandelic acid, and mixtures thereof. The amines herein can be partially neutralized with any acid in a molar ratio of amine to acid of about 1:0.3 to about 1:2 and / or about 1:0.4 to about 1:1.

[0029] Di-long chain alkyl quaternary ammonium salt The di-long alkyl quaternized ammonium salt can be combined with a mono-long alkyl quaternized ammonium salt or a mono-long alkyl amidoamine salt. It is believed that such a combination can provide an easier rinsing sensation than the use of a mono-long alkyl quaternized ammonium salt or a mono-long alkyl amidoamine salt alone. In such a combination with a mono-long alkyl quaternized ammonium salt or a mono-long alkyl amidoamine salt, the di-long alkyl quaternized ammonium salt is used at a level such that the weight percent of the di-alkyl quaternized ammonium salt in the cationic surfactant system ranges from about 10% to about 50% and / or from about 30% to about 45%.

[0030] Dialkyl quaternized ammonium salt cationic surfactants useful herein are those having two long alkyl chains having from 12 to 30 carbon atoms, and / or from 16 to 24 carbon atoms, and / or from 18 to 22 carbon atoms. The remaining groups attached to the nitrogen 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.

[0031] The dilong chain alkyl quaternized ammonium salts useful herein have the following formula (II):

[0032] [ka] (In the formula, R 75 , R 76 , R 77 and R 78 two of R are selected from an alkyl group having 12 to 30 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; 75 , R 76 , R 77 , and R 78the remainder are independently selected from an alkyl group of 1 to about 4 carbon atoms, or an alkoxy group having up to about 4 carbon atoms, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group; and X - R has a salt-forming anion, such as one selected from halogens (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, sulfate, alkyl sulfate, and alkyl sulfonate groups. The alkyl groups may contain, in addition to carbon and hydrogen atoms, ether and / or ester linkages, as well as other groups such as amino groups. Longer chain alkyl groups, e.g., those having about 12 carbons or more, may be saturated or unsaturated. R 75 , R 76 , R 77 , and R 78 may be selected from alkyl groups of 12 to 30 carbon atoms, 16 to 24 carbon atoms, 18 to 22 carbon atoms, and / or 22 carbon atoms; R 75 , R 76 , R 77 , and R 78 the 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.

[0033] Examples of such dialkyl quaternized ammonium salt cationic surfactants include dialkyl (14-18) dimethyl ammonium chloride, ditallow alkyl dimethyl ammonium chloride, dihydrogenated tallow alkyl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, and dicetyl dimethyl ammonium chloride. Examples of such dialkyl quaternized ammonium salt cationic surfactants also include asymmetric dialkyl quaternized ammonium salt cationic surfactants.

[0034] C. Fatty alcohols Fatty alcohols may be included in the composition at levels of from about 1% to about 50% by weight of the composition, in some embodiments from about 5% to about 40% by weight of the composition, in view of providing the benefits of the present invention.

[0035] The fatty alcohol useful herein is selected from the group consisting of fatty alcohol, fatty alcohol derivative, fatty acid derivative, and mixtures thereof.It will be understood by those skilled in the art that the alcohol disclosed in this section of the specification may belong to more than one classification in some cases (e.g., some fatty alcohol derivatives may also be classified as fatty acid derivatives).However, the classification given is not intended to limit the specific alcohol, but is made so for the convenience of classification and nomenclature.Non-limiting examples of alcohols can be found in International Cosmetic Ingredient Dictionary, Fifth Edition, 1993 and CTFA Cosmetic Ingredient Handbook, Second Edition, 1992.

[0036] The fatty alcohols useful herein are those having from about 10 to about 30 carbon atoms, preferably from about 16 to about 22 carbon atoms. These fatty alcohols may be saturated or unsaturated and may be straight or branched chain alcohols.

[0037] Preferred fatty alcohols include, for example, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, lauryl alcohol, brassica alcohol, and mixtures thereof.These alcohols are known to form stable gel networks when combined with cationic surfactants.More preferred fatty alcohols in the present invention are cetyl alcohol, stearyl alcohol, and mixtures thereof.

[0038] Along with the fatty alcohol, the composition may further include a low melting point fatty alcohol, such as oleyl alcohol.

[0039] D. Additional ingredients The compositions of the present invention may contain other additional ingredients, which may be selected by one skilled in the art depending on the desired characteristics of the final product, and which are suitable for making the composition more cosmetically or aesthetically acceptable or for imparting additional usage benefits to the composition. Such other additional ingredients are generally used individually at levels of from about 0.1% to about 30%, preferably up to about 20%, by weight of the composition.

[0040] Silicone Compounds The composition of the present invention may or may not 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 about 0.1% to about 30% by weight of the composition, more preferably about 5% to about 20% by weight, and even more preferably about 10% to about 20% by weight.

[0041] The silicone compounds useful herein, 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 about 50 to about 2,000,000 mPa·s at 25° C.

[0042] Viscosity can be measured by 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 non-volatile silicone compounds with conditioning properties can also be used.

[0043] Preferred polyalkylsiloxanes include, for example, polydimethylsiloxane, polydiethylsiloxane, and polymethylphenylsiloxane.Particularly preferred is polydimethylsiloxane, also known as dimethicone.These silicone compounds are available, for example, from General Electric Company in their Viscasil® and TSF451 series, and from Dow Corning in their Dow Corning SH200 series.

[0044] The above polyalkylsiloxanes can be used, for example, as a mixture with a silicone compound having a lower viscosity. 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. Such a mixture preferably includes (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.

[0045] 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 have some overlap 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 mixtures with silicone compounds having lower viscosities. Such mixtures useful herein include, for example, gum / cyclomethicone blends available from Shin-Etsu.

[0046] 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 wherein G is hydrogen, phenyl, hydroxy, or C1-C8 alkyl, preferably methyl; a is an integer having a value of 0 or 1-3, 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 2qL is a monovalent radical, 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.

[0047] Highly preferred aminosilicones correspond 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 aminosilicone corresponds 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 aminosilicones can be referred to as terminal aminosilicones, since one or both ends of the silicone chain are terminated by a nitrogen-containing group.

[0048] When the above-mentioned aminosilicone 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 ones 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, preferably about 20 to about 10,000 centistokes at 25°C. Among the preferred solvents, highly preferred ones are non-polar volatile hydrocarbons, especially non-polar volatile isoparaffins, 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.

[0049] Other suitable alkylamino-substituted silicone compounds include those with alkylamino substitution as pendant groups of silicone backbone.Highly preferred are those known as "amodimethicones".Commercially available amodimethicones useful herein include, for example, BY16-872 available from Dow Corning.Some embodiments may include silicone quaternium-26.

[0050] 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.

[0051] A wide variety of other additional ingredients can be incorporated into the compositions of the present invention. These include other conditioning agents (e.g., hydrolyzed collagen available under the trade name "Peptein 2000" from Hormel, vitamin E available under the trade name "Emix-d" from Eisai, panthenol available from Roche, panthenyl ethyl ether available from Roche, hydrolyzed keratin, proteins, plant extracts, and nutrients); preservatives (e.g., benzyl alcohol, methylparaben, propylparaben, imidazolidinyl urea, p-hydroxyacetophenone); pH adjusters (e.g., citric acid, benzoic acid, sorbic acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate); colorants (e.g., any of the FD&C or D&C dyes); fragrances, and sequestering agents (e.g., disodium ethylenediaminetetraacetate); ultraviolet and infrared radiation shielding absorbers (e.g., benzophenone); and antidandruff agents (e.g., zinc pyrithione, piroctone olamine). In some embodiments, the composition may be free of any silicones, sulfates, and / or parabens. The composition may further comprise a material selected from the group consisting of fragrances, preservatives, silicones, colorants, oils, acidifiers, and combinations thereof.

[0052] Low melting point oil The composition may include one or more conditioning oils. Low melting oils useful herein are those having a melting point below 25°C. Low melting oils useful herein are selected from the group consisting of hydrocarbons having 10 to about 40 carbon atoms; unsaturated fatty alcohols having about 10 to about 30 carbon atoms, such as oleyl alcohol; unsaturated fatty acids having about 10 to about 30 carbon atoms; fatty acid derivatives; fatty alcohol derivatives; ester oils such as pentaerythritol ester oils, including pentaerythritol tetraisostearate, trimethylol ester oils, citric acid ester oils, and glyceryl ester oils; poly-alpha-olefin oils, such as polydecene; and mixtures thereof. Additional oils may include polyester oils, or mono-, di-, tri-ethers or esters, including triglycerides, such as caprylic / capric triglyceride, or vegetable oils, such as coconut oil, soybean oil, rapeseed oil, cocoa butter, olive oil, palm oil, rice bran oil, and mixtures thereof.

[0053] In some embodiments, the conditioning oil may have a hydrophilic-lipophilic balance (HLB) of less than about 10. In some embodiments, the oil may be a mono-, di-, or triester or ether, with monomer units having carbon chains of C2 to C16, preferably C4 to C10, or more preferably C6 to C8. In some embodiments, the oil may be a polyester, with hydrophobic monomer units (linear or branched) having carbon chains shorter than C16, preferably shorter than C12. Examples of commercially available oils include, but are not limited to, Myritol 318 (caprylic / capric triglyceride) from BASF, Plantasil Micro (Dicaprylyl Ether (Dicaprylyl Ether (and) Decyl Glucoside (and) Glyceryl Oleate) in emulsion form from BASF); or Citropol 1A (Polycitronellol Acetate) from P2 science.

[0054] anhydrous The present invention provides a highly concentrated, anhydrous form of conditioner that can be easily diluted with tap water in the consumer's home. The concentrated conditioner can be anhydrous, clear, and of very low viscosity, similar to that of water. The hair care composition of the present invention forms a conditioner gel network instantly when mixed with an aqueous phase or water.

[0055] By anhydrous herein is meant that the composition contains no more than 2% total water and no added water, meaning no more than 2% bound water.

[0056] Product Form and Usage The hair care composition may be a low viscosity liquid. The liquid may be a single homogeneous phase. The consumer may mix water with the hair care composition of the present invention in a ratio of about 1:1 to about 1:20 and apply for 950 s. -1 The hydrating conditioner can form a thick cream or gel that can have a shear stress of at least about 100 Pa when measured with a rheometer at a shear rate of 100 Pa. This hydrating conditioner can form a gel network and then can be used in any known manner as a hair conditioner.

[0057] The hair care compositions of the present invention may be clear or transparent before the addition of water. Clear or transparent is defined as a percent transmittance (%T) of at least 80% transmittance at 600 nm according to the Clarity Assessment Test Method herein. Upon the addition of water, the composition may no longer be clear.

[0058] The composition of the present invention may have water added thereto to form a hair conditioning composition. The amount of water added may vary, but the ratio of anhydrous concentrate to water may be from about 1:1 to about 1:20. In some embodiments, the ratio of anhydrous concentrate to water may be from about 1:1 to about 1:6. The hair conditioning composition is then cooled to 950°C. -1 The shear stress may be at least about 100 Pa at a shear rate of 100 Pa.

[0059] How to make hair conditioner: a. (1) about 5% by weight to about 50% by weight of a cationic surfactant, (2) fatty alcohols, and (3) a solvent system comprising at least about 40% monoalcohol; forming an anhydrous composition comprising: b. adding water to the composition in a ratio of composition to water of 1:1 to 1:20; Including, Hair conditioner, 950s -1 The shear stress is at least 100 Pa at a shear rate of 100 Pa.

[0060] How to make hair conditioner: a. (1) about 5% by weight to about 50% by weight of a cationic surfactant, (2) fatty alcohols, and (3) a solvent system comprising at least about 40% monoalcohol; forming an anhydrous composition comprising: b. adding water to the composition in a ratio of composition to water of 1:1 to 1:20; Including, The hair conditioner forms a gel network. EXAMPLES

[0061] 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 present invention, since many variations thereof are possible without departing from the spirit and scope of the present invention. Where applicable, components are identified by chemical or CTFA name, or are otherwise defined below.

[0062] Example of the invention: Inventive Examples A and B and 1-10 are anhydrous, single-phase compositions with a viscosity of less than 100 cPs. When mixed with water in a ratio of 1:1 to 1:20, a lamellar gel network is formed. βThe presence of a lamellar gel network matrix with phases is shown by X-ray (SAX / WAX) analysis data. For inventive Examples A and B, the gel network is shown by the SAXS interplanar spacings and WXRD reflections.

[0063] Both WXRD and SAXS data were generated as described in more detail in the Test Methods below. As can be seen from Table 1, inventive Examples A and B, when mixed with water at 1:4.7 (1 part inventive example to 4.7 parts water), exhibit SAXS interplanar spacings corresponding to the interplanar spacing ratio of a lamellar phase and WXRD reflections in the range of 3.5-4.5, indicating a lamellar gel network matrix. In contrast, the comparative examples from Table 3 exhibit phase separation when mixed with water, which is due to the L β It is shown that a lamellar gel network matrix with phases cannot be formed without certain solvent combinations.

[0064] [Table 1]

[0065] Comparative Example: Comparative Examples C2, C5, C6, and C7 all contain less than 40% monoalcohol or a combination of monoalcohol + sugar alcohol and do not form a single-phase fluid. Comparative Examples C3 and C4 use no monoalcohol, only sugar alcohol. In C2-C7, the compositions formed are not single-phase liquids, meaning that they do not have a viscosity less than 100 Pa and solid precipitates are present.

[0066] [Table 2]

[0067] Table 3 shows Comparative Examples C8, C9, and C10, which are compositions that do not include a solvent system that includes at least about 40% monoalcohol. Comparative Examples C8, C9, and C10 each form a low viscosity liquid, but do not form a gel network structure when mixed with water. Also, when the compositions are combined with water at a composition to water ratio of 1:1 to 1:20, the composition has a viscosity of 950 s. -1 None of them have a shear stress of at least 100 Pa at a shear rate of .

[0068] [Table 3]

[0069] Test Method SAX / WAXS analysis method Small angle X-ray scattering ("SAXS"), used to resolve periodic structures in mesophases, is essentially an X-ray diffraction technique. It is used in conjunction with conventional wide angle X-ray diffraction ("WXRD") to characterize aggregated structures such as micelles, gel networks, lamellae, hexagonal liquid crystals, and cubic liquid crystals. Different mesophases that exhibit periodic structures can be characterized by the relative position of reflections (planar spacing) derived from the Bragg equation (d=λ / 2Sinθ), where d represents the planar spacing, λ represents the radiation wavelength, and θ represents the scattering (diffraction) angle.

[0070] The one-dimensional lamellar gel network phase is characterized by d1 / d1, d1 / d2, d1 / d3, d1 / d4, d1 / d5 spacing ratios with values ​​such as 1:2:3:4:5 in the SAXS region (long-range order) and one or two invariant reflections in the WXRD region (short-range) centered at about 3.5 and 4.5 Å over a broad halo background. Other mesophases (e.g., hexagonal or cubic phases) will have characteristically different spacing ratios.

[0071] SAXS data are collected for 60 minutes in high-resolution collimation at a sample-to-detector distance of 2500.00 mm on a Xenocs Xeuss 2.0 equipped with a Dectris Pilatus 3R 200K-A detector. The setup has a vacuum chamber. Sample pieces are injected into a quartz glass capillary tube (diameter = 2.0 mm, length = 80 mm, wall thickness = 0.01 mm), mounted in a grooved capillary sample holder and placed in the path of the X-ray beam. Data are collected and analyzed using Xenocs Foxtrot software. The 2D data are azimuthally integrated and reduced by the SAXS utility software to the intensity relative to the scattering vector (q) or its d-equivalent.

[0072] WAXS data are collected using a Bruker X-ray Diffraction D8 ADVANCE equipped with a LYNXEYE XET detector. Samples are loaded into a 20 mm PMMA sample holder for measurements at ambient conditions and 2-theta scans are performed in the range of 20°-23° using CuKα radiation (1.54060 Å). The applied voltage and current are 40 kV and 40 mA, respectively. Each measurement is performed with a step size of 0.02° and 1 s per step.

[0073] Rheology and Viscosity Methods Rheology and viscosity are used to evaluate and characterize product samples. Two important rheological methods identified are described below: -950s through flow curve -1 Shear stress at: This is a shear rate of 0.1 to 1000 s in 1 min using a cone-plate geometry. -1 The shear rate was increased logarithmically to 950 s -1 This is a method to read the shear stress value σ (Pa). Viscosity is in centipoise, cPs, measured by a cone and plate viscometer such as Brookfield Viscometer RV-DV2TRV available from Brookfield Engineering Laboratories (USA) or other alternative models known in the art. Sample volume was 2 mL, measurement time was 3 minutes, cone such as CPA-41Z rotated at 1 rpm, reading taken at the end of this 3 minutes period. The exact selection of measurement conditions can be selected as required by the skilled artisan.

[0074] The composition of the present invention may have a viscosity of less than 100 cPs. The composition of the present invention, when combined with water in a ratio of composition to water of about 1:1 to about 1:20, has a shear stress of less than 950 s -1 The shear rate may be at least 100 Pa.

[0075] Clarity evaluation - Measurement of transmittance (%T) The clarity of a composition can be measured by % transmittance. For a composition to be clear, it can be made without ingredients that give the composition a cloudy appearance, such as silicones, opacifiers, non-silicone oils, mica, and gums. The addition of these ingredients is not expected to affect the functional properties of the composition, but they may obscure the clarity measurement by % transmittance. Clear compositions are generally single-phase and should remain clear when shaken, whereas two-phase compositions will not be clear when shaken.

[0076] Clarity can be measured by percent transmittance (%T) using ultraviolet / visible (UV / VI) spectroscopy, which measures the transmission of UV / VIS light through a sample. It has been shown that a light wavelength of 600 nm is appropriate for characterizing the degree of light transmittance through a sample. Typically, it is best to follow the specific instructions for the particular spectrophotometer being used. In general, the procedure for measuring percent transmittance begins by setting the spectrophotometer to 600 nm. A calibration "blank" is then run to calibrate the readout to 100 percent transmittance. A single test sample is then placed in a cuvette designed to fit the particular spectrophotometer, and care is taken to ensure that there are no air bubbles in the sample before measuring the %T with the spectrophotometer at 600 nm. An example of an apparatus used for measurement is the X-Rite Ci7800 benchtop spectrophotometer. The compositions of the present invention may have a percent transmittance (%T) of at least about 80% transmittance at 600 nm.

[0077] Examples / Combinations A. A hair care composition comprising: a. about 5% to about 50% of a cationic surfactant; b. a fatty alcohol; c. a solvent system comprising at least about 40% monoalcohol; Including, The composition is anhydrous. B. The composition of paragraph A, wherein the monoalcohol is selected from the group consisting of ethanol, isopropanol, butanol, hexanol, heptanol, dodecanol, oleyl alcohol, and combinations thereof. C. The composition of any one of paragraphs A or B, wherein the solvent system further comprises a sugar alcohol. D. The composition of paragraph C, wherein the sugar alcohol is selected from the group consisting of propylene glycol, dipropylene glycol, phenylene glycol, hexylene glycol, and combinations thereof. E. The composition of paragraph C, wherein the ratio of monoalcohol to sugar alcohol is from about 99:1 to about 50:50 by weight. F. The composition of any one of paragraphs A-E, comprising at least about 50% solvent system by weight of the composition. G. The composition of any one of paragraphs A through F, further comprising a quaternizing acid. H. The composition of paragraph G, wherein the quaternized acid is selected from the group consisting of L-glutamic acid, salicylic acid, succinic acid, citric acid, benzoic acid, lactic acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, maleic acid, mandelic acid, and combinations thereof. I. The composition of any one of paragraphs A-H, wherein the cationic surfactant is selected from the group consisting of SAPDMA, BAPDMA, and combinations thereof. J. The composition of any one of paragraphs A-I, comprising from about 5% to about 40% cationic surfactant, by weight of the composition. K. The composition of any one of paragraphs A-J, further comprising an additional surfactant. L. A composition according to any one of the preceding claims comprising from about 1% to about 50% fatty alcohol, by weight of the composition. M. The composition of any one of paragraphs A through L, which is silicone-free. N. The composition of any one of paragraphs A-M, which does not contain any sulfates and / or parabens. O. The composition of any one of paragraphs A-N, wherein the composition is transparent and has a viscosity of less than 100 cP. P. The composition of any one of paragraphs A-O, further comprising a material selected from the group consisting of fragrances, preservatives, silicones, colorants, oils, acidifying agents, and combinations thereof. Q. The composition of any one of paragraphs A-P, which is single-phase. R. A method of making a hair conditioner comprising: a. (1) about 5% by weight to about 50% by weight of a cationic surfactant, (2) fatty alcohols, and (3) a solvent system comprising at least about 40% monoalcohol; forming an anhydrous composition comprising: b. adding water to the composition in a ratio of composition to water of 1:1 to 1:20; Including, Hair conditioner, 950s -1 The method has a shear stress of at least 100 Pa at a shear rate of . S. The method of paragraph R, wherein the hair conditioner forms a gel network. T. A method of making a hair conditioner comprising: a. (1) about 5% by weight to about 50% by weight of a cationic surfactant, (2) fatty alcohols, and (3) a solvent system comprising at least about 40% monoalcohol; forming an anhydrous composition comprising: b. adding water to the composition in a ratio of composition to water of 1:1 to 1:20; Including, The method wherein the hair conditioner forms a gel network.

[0078] Dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise specified, 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."

[0079] 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 is not an admission that it is prior art to any invention disclosed or claimed herein, or that it alone, or in combination with any other reference or references, teaches, suggests, or discloses any such invention. 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 given to that term in this document shall govern.

[0080] 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. 5% to 50% of a cationic surfactant; b. a fatty alcohol; c. a solvent system comprising at least 40% monoalcohol; Including, The composition is anhydrous.

2. 2. The composition of claim 1, wherein the monoalcohol is selected from the group consisting of ethanol, isopropanol, butanol, hexanol, heptanol, dodecanol, oleyl alcohol, and combinations thereof.

3. The composition of claim 1 or 2, wherein the solvent system further comprises a sugar alcohol.

4. 4. The composition of claim 3, wherein the sugar alcohol is selected from the group consisting of propylene glycol, dipropylene glycol, phenylene glycol, hexylene glycol, and combinations thereof.

5. 4. The composition of claim 3, wherein the ratio of monoalcohol to sugar alcohol is from 99:1 to 50:50 by weight.

6. The composition of any one of claims 1 to 5, comprising at least 50% by weight of the composition of said solvent system.

7. 7. The composition of any one of claims 1 to 6, further comprising a quaternary acid, said quaternary acid being selected from the group consisting of L-glutamic acid, salicylic acid, succinic acid, citric acid, benzoic acid, lactic acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, maleic acid, mandelic acid, and combinations thereof.

8. 8. The composition of any one of claims 1 to 7, comprising from 5% to 40%, by weight of the composition, of a cationic surfactant, wherein the cationic surfactant is selected from the group consisting of SAPDMA, BAPDMA, and combinations thereof.

9. The composition of any one of claims 1 to 8, further comprising an additional surfactant.

10. A composition according to any one of the preceding claims, comprising from 1% to 50% fatty alcohol, by weight of the composition.

11. A composition according to any one of claims 1 to 10, which is free of silicones and any sulphates and / or parabens.

12. The composition of any one of claims 1 to 11, which is transparent and has a viscosity of less than 100 cP.

13. The composition of any one of claims 1 to 12, further comprising a material selected from the group consisting of fragrances, preservatives, silicones, colorants, oils, acidifiers, and combinations thereof.

14. The composition according to any one of claims 1 to 13, which is single-phase.

15. 1. A method of making a hair conditioner comprising the steps of: a. (1) 5% to 50% of a cationic surfactant; (2) a fatty alcohol, and (3) a solvent system comprising at least 40% monoalcohol; forming an anhydrous composition comprising: b. adding water to the composition in a ratio of composition to water of 1:1 to 1:20; Including, The method wherein the hair conditioner forms a gel network.

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