Cleansing composition

Abstract

To provide a mild sulfate-free surfactant cleansing composition for the hair including the scalp and the skin.SOLUTION: (I) from 3% to 13% by weight of the total composition at 100% active of an alpha olefin sulphonate anionic surfactants of general formula (I): R1 - CH = CH2 - SO3 - M+ (I); (ii) from 1 to 8% by weight of an amphoteric surfactants which is cocamidopropyl betaine; (iii) from 0.05% to 0.5% by weight of a cationic polymer; (iv) from 0.3 to 2.8% by weight of inorganic electrolytes; and (v) water; Wherein the weight ratio of (i) to (ii) is in the range of from 2:1 to 1:4; the pH of the composition is from 3 to 6.5; and the composition has a viscosity of from 2,500 to 25,000 mPa-s.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention provides a mild, sulfate-free surfactant, CLEAN, for hair and skin, especially the scalp. The present invention relates to a coating composition. [Background technology]

[0002] Microstructure and rheology influence consumer acceptance and product performance, and therefore personal The choice, amount and relative amounts of surfactants are important factors in personal care formulations. The microstructure of the cleansing composition contributes to the viscosity and It can affect rheological properties such as viscosity building properties and also contribute to composition stability. possible.

[0003] Surfactant molecules can aggregate to form micelles, and these micelles aggregate to form structures. A sufficient level of surfactant is usually required to achieve this. The compositions very often contain 12% by weight or more of surfactants. The key surfactant component is generally an alkyl and / or alkyl ether sulfate surfactant. Lauryl and laureth sulfates are surfactants known to provide good cleaning power. A commonly used surfactant is a sulfate surfactant. Sulfate surfactants are anionic surfactants. They belong to a class of materials known as soluble surfactants. Sulfate surfactants are very often , used in combination with amphoteric co-surfactants, and betaine surfactants such as cocamidopropyl betaine , a commonly used amphoteric surfactant. Betaine surfactants are used to enhance foaming (b oast), and although it does not have the cleaning power of sulfate surfactants, it is generally Advantageously, it is milder than sulfate surfactant-based personal cleaners. Thickening compositions can typically be thickened by adding simple salts.

[0004] Although sulfate surfactants are widely used in personal cleansing compositions, and milder compositions, including compositions in which the anionic surfactant is a sulfate-free surfactant. There is considerable interest in alternatives.

[0005] Achieving an acceptable composition viscosity allows for controlled application and easy spreading during use. is an important factor in providing a mild personal cleansing composition that can The viscosity of the composition, along with attributes such as lathering, influences consumer perception of such products. The absence of sulfate surfactants can affect the desired rheology. Developing a microstructure that provides these properties is particularly important for mild compositions with low surfactant concentrations. In some cases, this can be difficult, and furthermore, the addition of simple salts can improve the viscosity of such compositions. Building up a pH level can be problematic. The absence of sulfate surfactants is a key factor in ensuring stability at acidic pH levels. Formulating a consistent mild cleansing composition can also be problematic.

[0006] One approach to the problem of thickening systems that do not contain sulfate surfactants is to use sulfate-free The surfactant was used in combination with a polymeric thickener. Under low shear conditions such as those experienced during application and spreading in use, May have a gelling effect that changes a product's rheology to a non-Newtonian rheology The use of such thickeners is perceived by consumers as an undesirable deviation from product standards. In addition to providing a high viscosity, the use of simple salts further limits the ability to subsequently adjust the viscosity of the composition. It is possible to limit.

[0007] Relatively high levels of non-sulfate surfactants can be used, as well as sulfate-free systems. However, the level of non-sulfate surfactants required can be The level may be higher than conventional standards and may be higher than the level of a relatively inert liquid crystal structure or dye. This may result in a non-isotropic surfactant system with a main component. In contrast to isotropic surfactant systems, which tend to have a relatively poor liquid crystalline microstructure, The active microstructure tends to "trap" surfactants, impairing foaming. The liquid crystal structures or domains can interfere with light transmission and give the composition a cloudy or hazy appearance. which can be problematic when translucency is desired.

[0008] Uses sulfate-free surfactants to provide a desirable rheology that is suitable for hair, skin, and scalp. mild clays with high viscosity and relatively low surfactant concentrations. There is a need for a bleaching composition. Of particular interest are those that do not contain sulfate surfactants. A low surfactant content composition, the viscosity of which can be controlled by the addition of electrolytes such as simple salts. It can be increased.

[0009] WO18002557A1 discloses a sulfuric acid compound that controls rheology by accessing a lamellar phase region. High concentration (35-60%) of salt-free anionic, amphoteric and nonionic A mixture of surfactants is used. No salts are added to these formulations. High surfactant concentrations in the solution solve the rheology building problem, but they It does not provide any special benefits or isotropic properties such as a transparent appearance and flash foam. It may not have the application and organoleptic properties of shampoo.

[0010] US2017319453A is alpha olefin sulfonate (AOS) + glycerin The combination of fatty acid ester and amphoteric surfactant (betaine) provides no or reduced irritation. , which give excellent foaming quality and are stable, especially over time and / or at high temperatures. At acidic pH, the ester bond is vulnerable to attack and unstable. This can lead to inconsistencies and tends to thin the isotropic formulation over time. This accelerates these destabilizing reactions.

[0011] US2016095804A describes complex combinations of sulfate-free surfactants (e.g. , anionic surfactants and amphoteric surfactants, optionally with the addition of nonionic surfactants) They use a polymer that is hydrophobically modified with a high molecular weight. Also, cationic conditioning agents (polymers and silicones or functional silicones) However, adding a structuring polymer to the cleansing formulation This can result in poor sensory performance in the form of poor clean feel, coating and stickiness. I know.

[0012] US2017079899A and US2017095410A are for high concentrations and specific ratios Blends of alpha olefin sulfonates of different chain lengths (C16 + C18) at different ratios have It has been revealed that a suspending agent in the form of a polymeric material is required to thicken the solution. The use of amphoteric or zwitterionic materials such as amines, as well as at least one initiator material such as a fatty material. The inclusion of a foam booster is also contemplated.

[0013] US2012157365A describes polyglyceryl nonionic, amphoteric and sulfate-free acrylates. A mixture of anionic surfactants was used at a pH below 5.4, with sodium benzoate as a preservative. The ratio of polyglyceryl to amphoteric is 0.05:1 to 3:1. and the ratio of sulfate-free anionic to amphoteric ranges from 0.3:1 to 4:1.

[0014] US5811087 includes: a) 1% to 25% by weight of at least one alkylamidoethercarboxylic acid of a given formula b) at least one anionic sulfate or sulfonate surfactant from 1% to 2% by weight 5% by weight; c) C8-C18-acyl mono- and dialkanolamides, surface active betaines at least one selected from the group consisting of amines and sulfobetaines, and / or surface-active amine oxides; 0.1% by weight to 10% by weight of another compound, and d) at least one cationic polymer having a charge density of at least 2.50 meq / g; Rimer 0.05% to 5% by weight The present application discloses an aqueous hair shampoo containing a combination of the following: Examples include lauryl hydroxysultaine and lauryl hydroxysultaine.

[0015] US2017 / 0340540 describes a method for cleansing and caring for keratinous substrates. A cosmetic composition comprising: (i) one or more linear α-olefin sulfonates; (ii) a single polymer; one or more non-oxyalkylenated anions other than compound (i), present in an amount of from 10% to 20% by weight; (iii) one or more selected from amphoteric surfactants and nonionic surfactants; Compositions containing the above additional surfactants are disclosed. Examples include 0.5 wt. % poly(2-methyl-2-propanol) Alpha olefin sulfonate and cocobetaine in combination with Quaternium-10 are examples. can be.

[0016] US2017 / 0360688 relates to cosmetic compositions which also contain at least one surfactant. The authors demonstrate the use of a combination of anionic and cationic polyelectrolytes in A stable viscosity and yield stress is achieved. [Prior art documents] [Patent documents]

[0017] [Patent Document 1] WO18002557A1 [Patent Document 2] US2017319453A [Patent Document 3] US2016095804A [Patent Document 4] US2017079899A [Patent Document 5] US2017095410A [Patent Document 6] US2012157365A [Patent Document 7] US5811087 [Patent Document 8] US2017 / 0340540 [Patent Document 9] US2017 / 0360688 Summary of the Invention

[0018] The inventors have discovered that alpha olefin sulfonates (AOS) are the first sulfate-free surfactants. It has been confirmed that salt-based chassis are Used to build viscosity, control foam and help provide the mildness benefits of a lower CMC To achieve this, a second surfactant is required.

[0019] It is desirable to reduce the level of surfactants used in formulations (mildness and environmental However, reducing the amount of surfactant can result in a formulation with a desirable viscosity. It is known that the rate of decline will be as low as possible.

[0020] In previous studies, low interfacial activity was achieved using α-olefin sulfonate (AOS) as the main surfactant. At the total surfactant concentration, the secondary surfactant cocamidopropyl betaine (CAPB) It has been found that viscosity cannot be built up.

[0021] However, the present inventors have surprisingly found that AOS and cocaine can be synthesized in a specific, defined ratio. The combination with amidopropyl betaine improves viscosity by adding salt at low total surfactant concentrations. This is in addition to other thickeners, such as polymers and other secondary interfaces. This eliminates the need for an activator.

[0022] The composition according to the invention is a mixture of anionic and cocamidopropyl betaine in a rich ratio. It has a combination of camidopropyl betaine; low surfactant concentration; specific level of main Sulfate-free surfactant with cationic polymer for skin and hair It provides good foaming, excellent cleaning, and wet cleaning while maintaining mildness on proteins. It provides tangling and desirable rheological properties.

[0023] Definition of an invention In a first aspect, the present invention provides a method for preparing a soluble polymeric polymer comprising, in an aqueous continuous phase: (i) 3% to 13% by weight of the total composition at 100% active ingredient of general formula (I): [ka] [In the formula, R 1 straight-chain or branched alkyl groups having 11 to 13 carbon atoms and mixtures thereof and M is a solubilizing cation. surfactants; (ii) 1 to 8% by weight of an amphoteric surfactant which is cocamidopropyl betaine a total amount of anionic surfactants and amphoteric surfactants; (iii) 0.05 wt % to 0.5 wt % of a cationic polymer; (iv) 0.3 to 2.8 wt. % of an inorganic electrolyte; and (v) water 1. A sulfate-free surfactant cleansing composition comprising: wherein the weight ratio of (i) to (ii) is in the range of 2:1 to 1:4, and the pH of the composition is is 3 to 6.5; The composition was tested at 30°C using a TA Instruments Discovery Hybrid Le O-meter (TA Instruments Discovery Hybrid Rh eometer) (Parallel 40mm sandblasting plate, 4s -1 Peak Ho at When measured using the standard protocol, the viscosity is between 2,500 and 25,000 mPa s. A sulfate-free surfactant cleansing composition having a viscosity is provided.

[0024] In a second aspect, the present invention provides a method for applying a composition as defined in the first aspect to hair and / or Treatment of hair and / or scalp and / or skin, comprising applying to the scalp and / or skin A method is provided.

[0025] Preferably, the method comprises administering the composition of the first invention to the hair and / or scalp and / or skin. This method includes the additional step of massaging the area.

[0026] Preferably, the method further comprises rinsing the hair and / or scalp and / or skin. The process includes:

[0027] Detailed Description of the Invention All molecular weights used herein are weight average molecular weights unless otherwise specified.

[0028] Aqueous continuous phase "Aqueous continuous phase" means a continuous phase having water as its base.

[0029] Suitably, the compositions of the present invention comprise from about 75 to about 95% (by weight based on the total weight of the composition), The water content is preferably 85 to 95%, more preferably 87 to 95%.

[0030] Preferably, the composition comprises an isotropic surfactant phase, which, upon dilution, Sonotropic micelles provide higher availability of monomers to the air / water interface, while anisotropic The slower rate of diffusion results in more flash foam properties. Therefore, the isotropic phase can affect the appearance, clarity, and It is advantageous for good flash foam properties.

[0031] All amounts mentioned herein are 100% active unless otherwise specified. 100% activity (or "active") ity) (or "active") means that the material is undiluted and 100% v / v or wt / wt. Many of the compounds used in personal care formulations The material is commercially available in different active concentrations, for example, 70% active or 60% active. , 100mL of 70% active surfactant has the same volume as 70mL of 100% active surfactant. Provides active ingredients. Therefore, to vary the activity of the ingredients, all amounts should be adjusted to 100%. It is based on active ingredients.

[0032] The aqueous continuous phase is an anionic, amphoteric, and zwitterionic aqueous solution comprising: (i) and (ii) The total amount of surfactants included in the composition of the present invention is inclusive of additional anionic, amphoteric and Preferably, other surfactants, such as nonionic surfactants, are not present. No carboxylic surfactants are present in the compositions of the present invention.

[0033] (i) α-olefin sulfonate anionic surfactant The compositions of the present invention comprise: (i) one or more alpha olefin sulfonate anions of the general formula (I) Contains a carboxylic surfactant. [ka] In the formula, R 1 is a straight or branched alkyl group having 11 to 13 carbon atoms and and M is a solubilizing cation.

[0034] Preferably, R in general formula (I) 1 is C 14 or C 16 It is a straight chain alkyl group.

[0035] Preferably, M in general formula (I) is an alkali metal cation (e.g., sodium or potassium), ammonium cations and substituted ammonium cations (e.g., alkyl ammonium, alkanolammonium or glucammonium ]) is selected from.

[0036] Commercially produced alpha-olefin sulfonate anionic surfactants of general formula (I) The agent can be made by treating natural gas-derived C14-16 olefins with sulfuric acid. This process may result in a mixture of homologues and low levels of unreacted olefins. There are also.

[0037] Particularly preferred are α-olefin sulfonates having an average carbon number of 14 to 16. A suitable example of such a material is Bioterge AS40 (ex. Stepan).

[0038] Amount of alpha olefin sulfonate anionic surfactant of general formula (I) at 100% activity is 3 to 13%, for example 3 to 12.85%, preferably (by weight based on the total weight of the composition) is 3.5 to 12%, more preferably 3 to 10%, even more preferably 3 to 9%, and most preferably The range is preferably 3.25 to 8%.

[0039] (ii) Amphoteric surfactant - Cocamidopropyl betaine The compositions of the present invention include cocamidopropyl betaine.

[0040] A suitable example is available under the trade name Tego Betaine CK KB5 (e.g., Evonik) It is Noh.

[0041] The cocamidopropyl betaine is present in an amount of 1 to 8% by weight.

[0042] The combined amounts of (i) and (ii) are (based on total weight of the composition and 100% active) The range is 5 to 19% by weight, preferably 7 to 15% by weight, and most preferably 8 to 14% by weight. do.

[0043] The weight ratio of α-olefin sulfonate anionic surfactants (i) to amphoteric surfactants (ii) The ratio of the amounts is 2:1 to 1:4, preferably 2:1 to 1:3, and most preferably 2:1 to 1:1. It is a range.

[0044] The pH of the composition of the present invention is 3 to 6.5, preferably 3.5 to 5.1, more preferably 4. The range is ~5.

[0045] To achieve a low pH, a protonating agent may be used. Suitable protonating agents are acids. Suitable acids useful herein include hydrochloric acid, citric acid, acetic acid, tartaric acid, fumaric acid, and lactic acid. , malic acid, succinic acid, and mixtures thereof. Preferably, the acid is citric acid, It is selected from the group consisting of acetic acid, tartaric acid, hydrochloric acid, fumaric acid, lactic acid, and mixtures thereof.

[0046] (iii) cationic polymer The compositions of the present invention include (iii) one or more cationic polymers. The composition may enhance the provision of wetness benefits.

[0047] Cationic polymers for use in the present invention suitably have a cationic content of from about 0.3 to about 4 meq / g. Preferably, the cationic charge density is in the range of about 0.4 to about 3.5 meq / g. The term "cationic charge density" in this context refers to the amount of monomer units that make up the polymer. This refers to the ratio of the number of positive charges on a polymer to the molecular weight of the monomer unit. Multiplying by the molecular weight of the polymer gives the number of positively charged sites on a polymer chain. The thione charge density can be determined according to the Kjeldahl method. It is recognized that the charge density of the containing polymer may vary depending on the pH and the isoelectric point of the amino group. The charge density should be within the above range at the pH of intended use.

[0048] Cationic polymers suitable for use in the present invention include cationic polysaccharide derivatives, e.g., cationic Cationic cellulose derivatives, cationic starch derivatives, and cationic guar gum derivatives etc.

[0049] Cationic polysaccharide derivatives suitable for use in the present invention include cationic guar gum derivatives and Cationic cellulose derivatives are also available.

[0050] Examples of cationic guar gum derivatives suitable for use in the present invention include guar hydroxypropyl guar gum, ammonium chloride, etc. Guarhydrides for use in the present invention Hydroxypropyltrimethylammonium chloride is generally an ether-linked 2- Nonionic guar gum functionalized with hydroxypropyltrimethylammonium chloride groups It is composed of a gum skeleton, typically guar gum and N-(3-chloro-2-hydroxy It is prepared by reaction of propyltrimethylammonium chloride with methyl ammonium chloride.

[0051] Guar Hydroxypropyltrimethylammonium Chloride for Use in the Present Invention is generally 500,000 to 3,000,000 g / mol, more preferably 800,000 to 2,500,000 g / mol Average molecular weight in the range (weight average molecular weight determined by size exclusion chromatography) (M w )).

[0052] Guar Hydroxypropyltrimethylammonium Chloride for Use in the Present Invention (preferably guar hydroxypropyltrimethylammonium chloride) is generally It has a charge density in the range of 0.5 to 1.8 meq / g.

[0053] Examples of cationic cellulose derivatives suitable for use in the present invention include poly(1,2-oxy- Ethanediyl)-2-hydroxy-3-trimethylammonium propyl chloride Examples include rosin ether (INCI: Polyquaternium-10).

[0054] Preferably, the cationic polymer is polyquaternium 10, 800,000 to 2,500,000 g / m M in the range of ol w and guar hydrochloride having a charge density in the range of 0.5 to 1.8 meq / g. propyltrimethylammonium chloride, and mixtures thereof.

[0055] Mixtures of any of the above mentioned cationic polymers may also be used.

[0056] In typical compositions according to the present invention, the amount of cationic polymer is generally about 100% of the composition. In the range of 0.05% to 0.5% by weight, preferably 0.15% to 0. The range is 0.5% by weight.

[0057] In preferred compositions according to the invention, the one or more cationic polymers comprise at least (by weight) in amounts ranging from 0.15 to 0.3% and from 800,000 to 2.5 million g / mol Range M w and guar hydroxypropyl esters with charge densities ranging from 0.5 to 1.8 meq / g. propyltrimethylammonium chloride.

[0058] Another type of suitable cationic conditioning polymer is a high molecular weight polyethylene glycol. Polyethylene glycol (PEG) polymers, such as PEG available from Dow as Polyox It is 45M.

[0059] Mixtures of any of the above mentioned polymers may be used.

[0060] inorganic electrolytes The inventors have surprisingly found that the compositions of the present invention are very good at building viscosity. Therefore, the surfactant-rich ratio can reduce viscosity at lower concentrations. This is a further advantage of the present invention.

[0061] The composition of the present invention includes at least one inorganic electrolyte. The inorganic electrolyte provides viscosity to the composition. Give.

[0062] The viscosity of the composition is suitably 2,500 to 25,000 mPa·s, preferably 3.0 00 to 20,000 mPa·s, more preferably 3,500 to 20,000 mPa·s, Even more preferably, it is 3,500 to 15,000 mPa·s, and most preferably, it is 4,000 The viscosity ranges from 12,000 mPa·s to 12,000 mPa·s. Instruments Discovery Hybrid Rheometer (Parallel 40mm Sandwich) Blast Plate, 4s -1 The protocol uses a peak hold protocol.

[0063] In this range, our products are pourable, but satisfy consumer demand for thicker compositions. It has enough viscosity to fill.

[0064] Suitable inorganic electrolytes include metal chlorides (e.g., sodium chloride, potassium chloride, calcium chloride, calcium chloride, magnesium chloride, zinc chloride, ferric chloride and aluminum chloride), and metals Sulfates (eg, sodium sulfate and magnesium sulfate) and the like.

[0065] The inorganic electrolyte may be separate from any inorganic electrolyte that may be present in the raw materials of the present invention. It is intended.

[0066] Examples of preferred inorganic electrolytes for use in the present invention include sodium chloride, potassium chloride, , magnesium sulfate and mixtures thereof.

[0067] Mixtures of any of the above materials may also be suitable.

[0068] The amount of inorganic electrolyte in the composition of the present invention (by weight based on the total weight of the composition) is preferably 0.3 to 2.8%, more preferably 0.5 to 2.5%, most preferably 0.5 to 2.3% The range is.

[0069] Preferred compositions of the present invention comprise: (i) an alpha olefin sulfonate anion of general formula (I) The weight ratio of the (ii) cocamidopropyl betaine to the (ii) surfactant is 2:1 to 1:1, The inorganic electrolyte content is 0.5 to 23% by weight based on the total weight of the composition.

[0070] Preferably, the composition of the present invention is free of silicones. "Not present" means less than 0.4% by weight, more preferably less than 0.1% by weight of the total composition; Even more preferably less than 0.05% by weight, even more preferably less than 0.001% by weight %, more preferably less than 0.0001% by weight, and most preferably 0% by weight of silicone. This means that

[0071] Preferably, the composition of the present invention comprises a thickening polymer (preferably hydroxyethyl cellulose). and associative thickening polymers) and a viscous surfactant (preferably cocoa amine). The present invention does not contain an additional thickening agent selected from the group consisting of methyl methacrylate (CMEA) and methyl methacrylate (MCEA). In this context, "free from" means less than 0.4% by weight of the total composition, more preferably is less than 0.1% by weight, even more preferably less than 0.05% by weight, even more preferably Less than 0.001% by weight, more preferably less than 0.0001% by weight, most preferably 0% by weight For clarity, the cationic polymer of the present invention is intended to have a thickening agent of 100% by weight. Mer (iii) is not intended to be a thickening polymer.

[0072] Most preferably, the compositions of the present invention are silicone-free and do not contain thickening agents as defined above. Contains no agents.

[0073] Preferably, the composition is transparent. When the composition is transparent, it is a silicone , structuring agents (e.g., carbomers) and viscosity surfactants (e.g., cocoamide monoethanolamine) In the context of the present invention, it does not contain materials that cause haze, such as methyl methacrylate (CMEA) or methyl methacrylate (MCEA). "Free of haze-causing materials" means that the entire composition is free of materials that cause haze, so that a clear composition is obtained. of less than 0.4 wt. %, more preferably less than 0.1 wt. %, even more preferably Less than 0.05% by weight, even more preferably less than 0.001% by weight, even more preferably 0 Having less than 0.0001% by weight, and most preferably 0% by weight, of haze-causing materials It means.

[0074] preservative The compositions of the present invention preferably contain sodium benzoate, sodium salicylate, benzoyl benzoate, Alcohol, phenoxyethanol, 1,2-alkanediol, iodopropyl butyl Isothiazol-3-ol (IPBC), 5-chloro-2-methyl-2H-isothiazol-3-ol 2-methyl-2H-isothiazol-3-one, 2-methyl-2H-isothiazol-3-one, or a mixture thereof. Preferably, the preservative is an organic acid, and most preferably, the preservative is a stable Sodium benzoate.

[0075] Preferred compositions have a pH of 3 to 5, preferably 4 to 5, and contain sodium benzoate. Contains preservatives.

[0076] Optional ingredients Preferably, the compositions of the present invention further comprise a surfactant that aids in suspending the dispersed benefit agent and provides phase stability. Suitable structuring agents include polyacrylic acid, poly(acrylic acid), and the like. Crosslinked polymers of methacrylic acid, acrylic acid, crosslinked polymers of methacrylic acid, acrylic acid and Copolymer of hydrophobic monomer, copolymer of methacrylic acid and hydrophobic monomer, carboxylic acid copolymers of carboxylic acid-containing monomers and acrylic esters, copolymers of carboxylic acid-containing monomers and methacrylic copolymers of acrylic acid esters, crosslinked copolymers of acrylic acid and acrylate esters, Crosslinked copolymer of acrylic acid and acrylate ester, heteropolysaccharide gum and crystalline long chain acrylamides derivatives.

[0077] Preferred structuring agents are polyacrylic acid, polymethacrylic acid, crosslinked polymers of acrylic acid. , crosslinked polymers of methacrylic acid, and mixtures thereof.

[0078] Mixtures of any of the above structuring agents may also be used.

[0079] If included, the total amount of structurant (by weight based on the total weight of the composition) is generally 0.1 to 1.0 wt. 10%, preferably 0.1 to 3%, more preferably 0.2 to 2%, most preferably 0.3 ~0.9%.

[0080] Preferred compositions include polyacrylic acid, polymethacrylic acid, crosslinked polymers of acrylic acid, a structuring agent selected from crosslinked polymers of methacrylic acid and mixtures thereof (total of composition) 0.1 to 10%, preferably 0.1 to 3%, more preferably 0.2 It is present in an amount of up to 2%, most preferably 0.3 to 0.9%.

[0081] The compositions of the present invention may contain additional optional ingredients to enhance performance and / or consumer acceptance. Examples of such ingredients include fragrances, dyes and pigments. Each of the ingredients will be present in an amount effective to achieve its purpose. These optional ingredients may be included individually in amounts up to 5% (by weight based on the total weight of the composition). .

[0082] The compositions of the present invention are primarily intended for topical application to the hair, scalp or skin. .

[0083] Most preferably, the compositions of the present invention are applied topically to the hair, scalp or skin, followed by application to the hair. The composition is then massaged into the hair, scalp or skin with water. Rinse off and then dry the hair, scalp or skin.

[0084] All amounts herein are weight percent by total weight of the composition unless otherwise specified. and is given.

[0085] The present invention is further illustrated by the following non-limiting examples. [Example]

[0086] Example 1: Preparation of compositions 1 to 9 according to the present invention and comparative composition A A rinse-off aqueous hair cleansing shampoo formulation having the ingredients shown in Table 1 below was prepared. Prepared.

[0087] All shampoos were prepared using the following method. 1. A container was charged with water. Surfactant and structurant were added with stirring. 2. The mixture was heated to 30°C and mixed until completely homogenous. 3. The cationic polymer was added and mixed well. 4. Preservatives added. 5. The pH was adjusted to 4.5 with citric acid. 6. Then salt was added to adjust the viscosity.

[0088] [Table 1]

[0089] Example 2: Viscosity characteristics of compositions 1 to 9 according to the present invention and comparative composition A The viscosities of the compositions shown in Table 1 were measured using a TA Instruments Discovery Hybrid Rheometer (parallel 40mm sandblast plate, 4s -1 Peak Ho at The viscosity was measured at 30°C using the standard protocol. The viscosity is shown in Table 2.

[0090] [Table 2]

[0091] Comparative composition A, which contains the AOS-CAPB combination at a weight ratio of 3:1, is too thin and In contrast, the compositions according to the present invention exhibit only a minimal salt thickening response. The results show beneficial salt thickening over a range of agent ratios.

Claims

1. In the aqueous continuous phase: (i) 3% to 13% by weight of the total composition at 100% actives of a compound of general formula (I): 【Chemistry 1】 [In the formula, R １ straight-chain or branched alkyl groups having 11 to 13 carbon atoms and mixtures thereof; and M is a solubilizing cation. surfactants; (ii) 1 to 8% by weight of an amphoteric surfactant which is cocamidopropyl betaine the total amount of anionic surfactants and amphoteric surfactants; (iii) 0.05% to 0.5% by weight of a cationic polymer; (iv) 0.3 to 2.8 wt. % of an inorganic electrolyte; and (v) water 1. A sulfate-free surfactant cleansing composition comprising: wherein the weight ratio of (i) to (ii) is in the range of 2:1 to 1:4, and the pH of said composition is is 3 to 6.5; The composition is immersed in a TA Instruments Discovery Hybrid Le at 30°C. Ometer; Parallel 40mm sandblast plate, 4s －１ Peak hold peak It has a viscosity of 2,500 to 25,000 mPa·s when measured using a protocol. A sulfate-free surfactant cleansing composition.

2. The amount of alpha olefin sulfonate anionic surfactant of general formula (I) is 100% active 2.5 to 12.85% by weight, preferably 3.5 to 12% by weight, based on the total weight of the composition The composition of claim 1 .

3. The combined amount of (i) and (ii) is in the range of 7% to 15% by weight of the total weight of the composition. The composition according to any one of claims 1 to 2.

4. The α-olefin sulfonate anionic surfactant (i) to the cocamidopropyl betaine 4. The method according to claim 1, wherein the weight ratio of tines (ii) is from 2:1 to 1:

3. composition.

5. The cationic polymer is polyquaternium 10, in the range of 800,000 to 2,500,000 g / mol. Surrounding M ｗ and guar hydroxypropyl having a charge density in the range of 0.5 to 1.8 meq / g. ammonium chloride, pyrotrimethylammonium chloride, and mixtures thereof.

5. The composition according to any one of claims 1 to 4.

6. The inorganic electrolyte is selected from the group consisting of metal chlorides, metal sulfates, and mixtures thereof. The composition according to any one of claims 1 to 5.

7. TA Instruments Discovery Hybrid Rheometer at 30°C; Rareru 40mm sandblast plate, 4s －１ Using the peak hold protocol The composition of any one of claims 1 to 5 has a viscosity of 3,500 to 20,000 mPa·s when measured at 200°C.

7. The composition according to any one of claims 6 to 6.

8. The composition according to any one of claims 1 to 7, which is transparent.

9. 10. The method according to claim 1, wherein the viscosity increasing agent is selected from a viscosity increasing polymer and a viscosity increasing surfactant.

9. The composition according to any one of claims 8 to 8.

10. A composition according to any one of claims 1 to 9, comprising an isotropic surfactant phase.

11. containing an inorganic electrolyte in an amount of 0.5 to 2.3 wt. % based on the total weight of the composition; and 11. The composition according to claim 1, wherein the weight ratio of (i) to (ii) is from 2:1 to 1:

1. The composition described above.

12. applying the composition according to any one of claims 1 to 11 to the hair, scalp or skin; 10. A method of treating hair, scalp or skin, comprising:

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