Composition comprising a cationic polymer selected from chitosan, a anionic surfactant and propionic acid or salts thereof

Abstract

To provide a composition capable of forming a coacervate.SOLUTION: The present invention relates to a composition comprising (a) at least one cationic polymer, (b) at least one anionic surfactant, and (c) propionic acid or a salt thereof, wherein the (a) cationic polymer is selected from chitosan having a molecular weight of greater than 3,000, preferably greater than 5,000, and more preferably greater than 10,000. The composition according to the present invention can form a coacervate.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a composition comprising at least one cationic polymer selected from chitosan, at least one anionic polymer, and propionic acid or a salt thereof, and a cosmetic method using the composition. [Background technology]

[0002] Cleansing hair or scalp is important for hair or scalp care. Various shampoos can be used as cleansing products for hair and scalp. Cleansing products such as shampoos typically contain surfactants to remove sebum and the like from hair and scalp.

[0003] Some cleansing products, such as shampoos, also contain ingredients for forming coacervates useful for depositing cosmetic active ingredients on the hair and scalp, as well as cosmetic active ingredients. Coacervates are generally formed when a cleansing product, such as a shampoo, is diluted with water, capturing the cosmetic active ingredients. The formed coacervates can be deposited on the hair and scalp. When the coacervates are deposited on the hair and scalp, the captured cosmetic active ingredients are also deposited on the hair and scalp, providing cosmetic benefits to the hair and scalp.

[0004] It has been known that cationic polymers and ionic surfactants can form complexes called coacervates. For example, WO2018 / 052920 discloses the formation of coacervates with guar hydroxypropyltrimonium chloride and sodium lauryl sulfate.

[0005] Moreover, the formulation of environmentally compatible cosmetics, designed and developed with environmental issues in mind, has become a major goal in meeting global challenges, and it is therefore essential to propose more sustainable compositions, preparation methods and ingredients to address these environmental issues.

[0006] In this context, it is important to develop new cosmetic compositions with a better carbon footprint, in particular by promoting the use of renewable raw materials and / or materials with a good naturalness index and / or materials of natural origin.

[0007] Indigenous skin bacteria, such as Staphylococcus epidermidis (S. epidermidis) and Cutibacterium acnes (C. acnes), digest sebum and produce propionic acid, which plays an important role in maintaining skin pH and exhibits antibacterial properties. Therefore, propionic acid or its salts, such as sodium propionate (NaP), appear to be promising cosmetic active ingredients for rebalancing skin and scalp conditions.

[0008] When applying propionate to keratinous materials such as the scalp, the use of a coacervate may be useful in effectively depositing the propionic acid or its salts onto the keratinous material. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] WO2018 / 052920 [Patent Document 2] WO03 / 068824 [Patent Document 3] U.S. Patent No. 2,528,378 [Patent Document 4] U.S. Patent No. 2,781,354 [Non-patent literature]

[0010] [Non-Patent Document 1] CTFA International Cosmetic Ingredient Dictionary & Handbook, 15th Edition, 2014 Summary of the Invention [Problem to be solved by the invention]

[0011] It is therefore an object of the present invention to provide a composition capable of forming a coacervate. [Means for solving the problem]

[0012] The above object of the present invention is to provide a composition, preferably a cosmetic composition, more preferably a cosmetic composition for keratinous materials such as the scalp, even more preferably a shampoo composition, comprising: (a) at least one cationic polymer; (b) at least one anionic surfactant, and (c) Propionic acid or its salts Including, This can be achieved by a composition in which (a) the cationic polymer is selected from chitosan having a molecular weight of more than 3,000, preferably more than 5,000, more preferably more than 10,000.

[0013] (a) The molecular weight of the cationic polymer may be less than 2,000,000, preferably less than 1,500,000, and more preferably less than 1,000,000.

[0014] The amount of (a) cationic polymer in the composition according to the present invention may be 0.001% by mass to 15% by mass, preferably 0.005% by mass to 10% by mass, and more preferably 0.01% by mass to 5% by mass, relative to the total mass of the composition.

[0015] (b) It may be preferred that the anionic surfactant is selected from alkyl sulfates, alkyl ether sulfates, and mixtures thereof.

[0016] (b) Anionic surfactants (C6-C 30 ) alkyl ether sulfates, such as sodium laureth sulfate, may be more preferably selected.

[0017] The amount of (b) anionic surfactant in the composition according to the present invention may be 1% by mass to 25% by mass, preferably 5% by mass to 20% by mass, and more preferably 10% by mass to 15% by mass, relative to the total mass of the composition.

[0018] The amount of (c) propionic acid or a salt thereof in the composition according to the present invention may be 0.01% by mass to 15% by mass, preferably 0.05% by mass to 10% by mass, and more preferably 0.1% by mass to 5% by mass, relative to the total mass of the composition.

[0019] The composition according to the present invention may further comprise (d) at least one amphoteric surfactant.

[0020] (d) The amphoteric surfactant may be selected from betaine-type surfactants, preferably from alkyl betaines, alkyl sulfobetaines, alkylamido alkyl betaines, and mixtures thereof, more preferably from cocobetaine, sulfopropyl betaine, cocamidopropyl betaine, and mixtures thereof.

[0021] The amount of (d) amphoteric surfactant in the composition according to the present invention may be 0.1% by mass to 15% by mass, preferably 0.5% by mass to 10% by mass, and more preferably 1% by mass to 5% by mass, relative to the total mass of the composition.

[0022] The composition according to the present invention may further comprise (e) at least one monovalent non-polymeric acid or salt thereof.

[0023] (e) The monovalent non-polymeric acid may be a monovalent non-polymeric organic acid, preferably a monovalent non-polymeric carboxylic acid, more preferably a monovalent hydroxy acid, such as lactic acid and salicylic acid.

[0024] The composition according to the present invention may further comprise (f) at least one inorganic salt.

[0025] The composition according to the present invention may further comprise (g) at least one non-polymeric acid or salt thereof having two or more pKa values.

[0026] The present invention also provides a cosmetic method for keratinous materials such as the scalp, comprising: applying a composition according to the invention to keratinous materials; rinsing the composition from the keratinous material; It also relates to beauty methods, including: DETAILED DESCRIPTION OF THE INVENTION

[0027] As a result of extensive investigations, the present inventors have discovered that it is possible to provide a composition capable of forming a coacervate.

[0028] Thus, the composition according to the invention comprises: (a) at least one cationic polymer; (b) at least one anionic surfactant, and (c) Propionic acid or its salts Including, (a) The cationic polymer is selected from chitosan having a molecular weight of more than 3,000, preferably more than 5,000, more preferably more than 10,000.

[0029] The compositions according to the present invention are capable of forming coacervates, particularly when the compositions according to the present invention are diluted with water.

[0030] Coacervate, as used herein, refers to a complex formed by (a) a cationic polymer and (b) an anionic surfactant.

[0031] (a) Cationic polymer and (b) anionic surfactant can form a coacervate that can contain (c) propionic acid or a salt thereof. The coacervate can be deposited on keratinous materials such as the scalp. Therefore, the composition according to the present invention can increase the amount of (c) propionic acid or a salt thereof on the keratinous materials. Increasing the amount of (c) propionic acid or a salt thereof on the keratinous materials can contribute to conditioning the keratinous materials by, for example, adjusting the pH on the keratinous materials and providing antibacterial and anti-dandruff effects to the keratinous materials.

[0032] Coacervates can also be deposited on keratinous fibers, such as hair, to provide a smooth feel.

[0033] Since chitosan can be obtained from natural sources, (a) cationic polymers are environmentally compatible. Therefore, compositions according to the present invention can include environmentally compatible ingredients.

[0034] The compositions according to the invention may be useful for both the hair and the skin, in particular the scalp, and are therefore preferably used as shampoos.

[0035] The present invention will now be described in more detail.

[0036] [Composition] The composition according to the present invention comprises (a) at least one cationic polymer; (b) at least one anionic surfactant, and (c) Propionic acid or its salts Including, (a) The cationic polymer is selected from chitosan having a molecular weight of more than 3,000, preferably more than 5,000, more preferably more than 10,000.

[0037] (cationic polymer) The composition according to the invention comprises (a) at least one cationic polymer chosen from chitosans having a molecular weight greater than 3,000.

[0038] There is no limitation on the type of (a) cationic polymer, as long as it is selected from a particular class of chitosan. Two or more different types of cationic polymers may be used in combination. Thus, a single type of cationic polymer or a combination of different types of cationic polymers may be used.

[0039] The cationic polymer has a positive charge density. (a) The charge density of the cationic polymer may be 0.01 meq / g to 20 meq / g, preferably 0.05 to 15 meq / g, and more preferably 0.1 to 10 meq / g.

[0040] According to the present invention, (a) the cationic polymer is selected from chitosans having a molecular weight (Da) of more than 3,000, preferably more than 5,000, more preferably more than 10,000.

[0041] (a) The molecular weight (Da) of the cationic polymer may be less than 2,000,000, preferably less than 1,500,000, and more preferably less than 1,000,000.

[0042] Therefore, the molecular weight (Da) of the (a) cationic polymer may be more than 3,000 and less than 2,000,000, preferably more than 5,000 and less than 1,500,000, and more preferably more than 10,000 and less than 1,000,000.

[0043] Unless otherwise defined in the description, "molecular weight" means weight average molecular weight. Molecular weight can be measured or determined, for example, by gel permeation chromatography according to ASTM D5296-19.

[0044] Chitosan is very rare in nature: it has only been reported in the exoskeletons of certain insects, such as termite queens, and in the cell walls of a certain class of fungi, the Zygomycetes.

[0045] Chitosan can be obtained by deacetylation of chitin, a polysaccharide composed of several N-acetyl-D-glucosamine units linked together by β-type bonds (1,4).

[0046] The ideal chemical structure of chitosan is a sequence of β-D-glucosamine monomers linked by glycosidic bonds (1→4).

[0047] "Chitosan" according to the present invention refers to any copolymer formed from the structural units N-acetyl-D-glucosamine and D-glucosamine, the degree of acetylation of which is less than 90%, preferably less than 80%, preferably less than 70%, preferably less than 60%, preferably less than 50%. Chitosan consists of glucosamine sugar units (deacetylated units) and N-acetyl-D-glucosamine units (acetylated units) linked together by β-type (1,4) bonds, and is a polymer of the poly(N-acetyl-D-glucosamine)-poly(D-glucosamine) type.

[0048] More preferably, the degree of acetylation of chitosan is 40% or less, preferably 35% or less, preferably 25% or less, preferably 15% or less, preferably 10% or less.

[0049] The degree of acetylation is the percentage of acetylated units relative to the total number of units and can be determined by Fourier transform infrared spectroscopy (FT-IR) or titration with a strong base.

[0050] The chitosan of the present invention is preferably a polysaccharide prepared from a fungal source, in particular, it is extracted and purified from safe and abundant food or biotechnological fungal sources, such as mushrooms (Agaricus bisporus) or Aspergillus niger.

[0051] The chitosan of the present invention is preferably derived from the mycelium of a fungus of the Ascomycete type, in particular Aspergillus niger and / or Basidiomycetes, in particular Lentinula edodes and / or mushroom. Preferably, the fungus is Aspergillus niger.

[0052] The chitosan may be of Genetically Modified Organism (GMO) origin, but is preferably of non-GMO origin.

[0053] The chitosan according to the invention is natural, i.e. unmodified, in particular does not contain any chemical modification.

[0054] One method for preparing chitosan is that described in WO03 / 068824.

[0055] Preferably, the chitosan used in the present invention is in the form of a powder, commercially available under the name Kiosmetine or Kionutrime, e.g., Kiosmetine-CSH, Kiosmetine CSG, and Kiosmetine P, by the company Kitozyme.

[0056] The amount of (a) cationic polymer in the composition according to the present invention may be 0.001% by weight or more, preferably 0.005% by weight or more, more preferably 0.01% by weight or more, relative to the total weight of the composition.

[0057] On the other hand, the amount of (a) cationic polymer in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, more preferably 5% by mass or less, relative to the total mass of the composition.

[0058] Therefore, the amount of (a) cationic polymer in the composition according to the present invention may be 0.001% by mass to 15% by mass, preferably 0.005% by mass to 10% by mass, and more preferably 0.01% by mass to 5% by mass, relative to the total mass of the composition.

[0059] (anionic surfactants) The composition according to the present invention includes (b) at least one anionic surfactant. A single type of anionic surfactant may be used, or two or more different types of anionic surfactants may be used in combination.

[0060] (b) The anionic surfactant may be selected from anionic derivatives of proteins of plant origin or of silk proteins, phosphates and alkyl phosphates, carboxylates, sulfosuccinates, amino acid derivatives, alkyl sulfates, alkyl ether sulfates, sulfonates, isethionates, taurates, alkyl sulfoacetates, polypeptides, anionic derivatives of alkyl polyglucosides, and mixtures thereof. 1) Anionic derivatives of proteins of plant origin are protein hydrolysates containing hydrophobic groups, which may be naturally present in the protein or may be added by reacting the protein and / or the protein hydrolysate with a hydrophobic compound. The proteins are of plant origin or derived from silk, and the hydrophobic groups may in particular be fatty chains, such as alkyl chains containing 10 to 22 carbon atoms. More particularly, mention may be made of anionic derivatives of proteins of plant origin, such as apple, wheat, soybean, or oat protein hydrolysates, containing alkyl chains having 10 to 22 carbon atoms, and their salts. The alkyl chains may in particular be lauryl chains, and the salts may be sodium, potassium, and / or ammonium salts.

[0061] Therefore, examples of protein hydrolysates containing hydrophobic groups include salts of protein hydrolysates in which the protein is silk protein modified with lauric acid, such as the product sold under the name Kawa Silk by Kawaken Fine Chemical Co., Ltd.; salts of protein hydrolysates in which the protein is wheat protein modified with lauric acid, such as the potassium salt (CTFA name: potassium lauroyl wheat amino acids) sold under the name Aminofoam W OR by Croda and the sodium salt (CTFA name: sodium lauroyl wheat amino acids) sold under the name Proteol LW 30 by Seppic; salts of protein hydrolysates in which the protein is oat protein containing an alkyl chain having 10 to 22 carbon atoms, more specifically, salts of protein hydrolysates in which the protein is oat protein modified with lauric acid, such as the sodium salt (CTFA name: sodium lauroyl oat amino acids) sold under the name Proteol OAT (30% aqueous solution) by Seppic; or salts of protein hydrolysates in which the protein is oat protein modified with lauric acid, such as the sodium salt (CTFA name: sodium lauroyl oat amino acids) sold under the name Proteol OAT (30% aqueous solution) by Seppic. Mention may be made of salts of apple protein hydrolysates containing alkyl chains with 10 to 22 carbon atoms, such as the sodium salt (CTFA name: sodium cocoyl malic acid) sold under the name APL (30% aqueous / glycolic solution).Furthermore, there may be mentioned a mixture of lauroyl amino acids (aspartic acid, glutamic acid, glycine, alanine) neutralized with sodium N-methylglycinate (CTFA name: sodium cocoyl amino acids) sold under the name Proteol SAV 50 S by the company Seppic. 2) Phosphates and alkyl phosphates, such as, for example, mono- and dialkyl phosphates, such as lauryl monophosphate sold under the name MAP 20® by Kao Chemical, potassium salt of dodecyl phosphate, the mixture of monoesters and diesters (mainly diesters) sold under the name Crafol AP-31® by Cognis, the mixture of octyl phosphate monoesters and diesters sold under the name Crafol AP-20® by Cognis, the mixture of ethoxylated (7 mol EO) 2-butyloctyl phosphate monoesters and diesters sold under the name Isofol 12 7 EO-Phosphate Ester® by Condea, the mono(C) phosphates sold under the references Arlatone MAP 230K-40® and Arlatone MAP 230T-60® by Uniqema, 12 ~C 13 ) potassium alkyl phosphate or triethanolamine salts, potassium lauryl phosphate sold under the name Dermalcare MAP XC-99 / 09® by the company Rhodia Chimie, and potassium cetyl phosphate sold under the name Arlatone MAP 160K by the company Uniqema. 3) Carboxylate salts include the following: amidoethercarboxylates (AEC), such as sodium laurylamidoethercarboxylate (3EO) sold under the name Akypo Foam 30® by Kao Chemical Company, polyoxyethylenated carboxylates, such as sodium oxyethylenated (6EO) lauryl ether carboxylate (C 65 / 25 / 10), sold under the name Akypo Soft 45 NV® by Kao Chemical Company; 12 Against C 14 Against C 16), polyoxyethylenated and carboxymethylated fatty acids of olive oil origin sold under the name Olivem 400® by Biologia E Tecnologia, or sodium oxyethylenated (6EO) tridecyl ether carboxylate sold under the name Nikkol ECTD-6 NEX® by Nikko Chemicals Co., Ltd., and - C6-C neutralized with organic or inorganic bases 22 Salts of fatty acids with alkyl chains (soaps), such as potassium hydroxide, sodium hydroxide, triethanolamine, N-methylglucamine, lysine and arginine. 4) As amino acid derivatives of alkaline salts of amino acids, mention may in particular be made of, for example: sarcosinate salts, such as sodium lauroyl sarcosinate sold under the name Sarkosyl NL 97® by the company Ciba or under the name Oramix L30® by the company Seppic, sodium myristoyl sarcosinate sold under the name Nikkol Sarcosinate MN® by Nikko Chemicals Co., Ltd., or sodium palmitoyl sarcosinate sold under the name Nikkol Sarcosinate PN® by Nikko Chemicals Co., Ltd.; alanine salts, such as sodium N-lauroyl-N-methylamidopropionate sold under the name Sodium Nikkol Alaninate LN 30® by Nikko Chemicals Co., Ltd. or under the name Alanone ALE® by Kawaken Fine Chemicals Co., Ltd., or triethanolamine N-lauroyl-N-methylalanine sold under the name Alanone ALTA® by Kawaken Fine Chemicals Co., Ltd.; glutamates, such as triethanolamine monococoyl glutamate sold under the name Acylglutamate CT-12® by Ajinomoto Co., Inc., triethanolamine lauroyl glutamate sold under the name Acylglutamate LT-12® by Ajinomoto Co., Inc.; aspartates, for example the mixture of N-lauroyl aspartic acid triethanolamine and N-myristoyl aspartic acid triethanolamine sold under the name Asparack® by Mitsubishi Chemical Corporation; glycine derivatives (glycinates), such as sodium N-cocoyl glycinate sold under the names Amilite GCS-12® and Amilite GCK 12 by Ajinomoto Co., Inc.; citric acid esters, for example the citric acid monoester of oxyethylenated (9 mol) coconut alcohol sold under the name Witconol EC 1129 by the company Goldschmidt; Galacturonates, such as sodium dodecyl D-galactosiduronate sold by the company Soliance. 5) Among the sulfosuccinates that may be mentioned are, for example, oxyethylenated (3EO) lauryl sulfonate (70 / 30, C), sold under the names Setacin 103 Special® and Rewopol SB-FA 30 K 4® by the company Witco. 12 / C 14 ) alcohol monosulfosuccinate, sold under the name Setacin F Special Paste® by Zschimmer Schwarz 12 ~C 14Examples include disodium salts of alcohol hemisulfosuccinates, such as oxyethylenated (2EO) oleamide disodium sulfosuccinate sold by Cognis under the trademark Standapol SH 135®, oxyethylenated (5EO) lauramide monosulfosuccinate sold by Sanyo Chemical Industries, Ltd. under the trademark Lebon A-5000®, oxyethylenated (10EO) lauryl citrate disodium sulfosuccinate sold by Witco under the trademark Rewopol SB CS 50®, and ricinoleic acid monoethanolamide monosulfosuccinate sold by Witco under the trademark Rewoderm S 1333®. Polydimethylsiloxane sulfosuccinates, such as PEG-12 dimethicone disodium sulfosuccinate sold by MacIntyre under the trademark Mackanate-DC 30, can also be used. 6) As alkyl sulfates, mention may be made, for example, of triethanolamine lauryl sulfate (CTFA name: TEA lauryl sulfate), such as the product sold by Huntsman under the name Empicol TL40 FL or by Cognis under the name Texapon T42, which are 40% aqueous solutions. Mention may also be made of ammonium lauryl sulfate (CTFA name: ammonium lauryl sulfate), such as the product sold by Huntsman under the name Empicol AL 30 FL, which are 30% aqueous solutions. 7) As alkyl ether sulfates, mention may be made, for example, of sodium lauryl ether sulfate (CTFA name: sodium laureth sulfate), such as that sold under the names Texapon N40 and Texapon AOS 225 UP by Cognis, or ammonium lauryl ether sulfate (CTFA name: ammonium laureth sulfate), such as that sold under the name Standapol EA-2 by Cognis. 8) Sulfonates, such as α-olefin sulfonates, for example sodium α-olefin sulfonate (C ), sold under the name Bio-Terge AS-40® by Stepan, sold under the name Witconate AOS Protege® and Sulframine AOS PH 12® by Witco, or sold under the name Bio-Terge AS-40 CG® by Stepan. 14 ~C 16 ), the sodium secondary olefin sulfonate sold under the name Hostapur SAS 30® by the company Clariant; or linear alkylaryl sulfonates, such as sodium xylene sulfonate sold under the names Manrosol SXS30®, Manrosol SXS40® and Manrosol SXS93® by the company Manro. 9) Among the isethionates, mention may be made of acyl isethionates, such as sodium cocoyl isethionate, such as the product sold under the name Jordapon CI P® by the company Jordan. 10) Examples of taurine salts include palm kernel oil methyl taurate sodium salt sold by Clariant under the name Hostapon CT Pate (registered trademark); N-acyl-N-methyl taurine salts, such as sodium N-cocoyl-N-methyl taurate sold by Clariant under the name Hostapon LT-SF (registered trademark) or sold by Nikko Chemicals Co., Ltd. under the name Nikkol CMT-30-T (registered trademark), sodium methyl stearoyl taurate sold by Nikko Chemicals Co., Ltd. under the name Nikkol SMT (registered trademark), or sodium palmitoyl methyl taurate sold by Nikko Chemicals Co., Ltd. under the name Nikkol PMT (registered trademark). 11) Anionic derivatives of alkyl polyglucosides can be, in particular, citrates, tartrates, sulfosuccinates, carbonates, and glycerol ethers derived from alkyl polyglucosides, such as the sodium salt of cocoyl polyglucoside (1,4) tartrate sold under the trademark Eucarol AGE-ET® by Cesalpinia, the disodium salt of cocoyl polyglucoside (1,4) sulfosuccinate sold under the trademark Essai 512 MP® by Seppic, or the sodium salt of cocoyl polyglucoside (1,4) citrate sold under the trademark Eucarol AGE-EC® by Cesalpinia.

[0062] Preferably, the (b) anionic surfactant is not a soap. Therefore, preferably, the (b) anionic surfactant can be selected from synthetic anionic surfactants. More preferably, the (b) anionic surfactant can be selected from amino acid derivatives, alkyl sulfates, alkyl ether sulfates, olefin sulfonates, and olefin acyl isethionates, and mixtures thereof. Even more preferably, the (b) anionic surfactant can be selected from amino acid derivatives, alkyl ether sulfates, and mixtures thereof.

[0063] In particular, (b) the anionic surfactant may be selected from the group consisting of: Sodium laureth sulfate, ammonium laureth sulfate, disodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, diammonium lauryl sulfosuccinate, diethylhexyl sodium sulfosuccinate, sodium oleyl succinate, sodium lauroyl methyl isethionate, sodium lauryl isethionate, sodium cocoyl isethionate, sodium laureth-5 carboxylate, lauryl ether carboxylic acid, ammonium lauryl sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric acid monoglyceride sodium sulfate, sodium lauryl sulfate, potassium lauryl sulfate, laureth sulfate Potassium cocoyl sulfate, ammonium cocoyl sulfate, ammonium lauroyl sulfate, sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate, monoethanolamine cocoyl sulfate, sodium tridecylbenzenesulfonate, sodium dodecylbenzenesulfonate, sodium C14-16 olefin sulfonate, sodium lauryl sarcosinate, sodium lauroyl sarcosinate, stearoyl sarcosine, lauryl sarcosine, cocoyl sarcosine, sodium cocoyl methyl taurate, sodium lauroyl methyl taurate, sodium lauroyl glutamate, sodium cocoyl glutamate, disodium cocoyl glutamate, potassium myristoyl glutamate, TEA-cocoyl glutamate, sodium cocoyl glycinate, potassium cocoyl glycinate, sodium cocoyl alanine, TEA-cocoyl alanine, and mixtures thereof.

[0064] (b) It may be preferred that the anionic surfactant is selected from alkyl sulfates, alkyl ether sulfates, and mixtures thereof.

[0065] (b) Anionic surfactants (C6-C 30) alkyl ether sulfates, such as sodium laureth sulfate, may be more preferably selected.

[0066] The amount of (b) anionic surfactant in the composition according to the present invention may be 1% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, based on the total mass of the composition.

[0067] On the other hand, the amount of (b) anionic surfactant in the composition according to the present invention may be 25% by mass or less, preferably 20% by mass or less, and more preferably 15% by mass or less, relative to the total mass of the composition.

[0068] Therefore, the amount of (b) anionic surfactant in the composition according to the present invention may be in the range of 1% by mass to 25% by mass, preferably 5% by mass to 20% by mass, and more preferably 10% by mass to 15% by mass, relative to the total mass of the composition.

[0069] (Propionic acid or its salts) The composition according to the present invention contains (c) propionic acid or a salt thereof. A single type of propionate may be used, or two or more different types of propionate may be used in combination.

[0070] The term "salt" as used herein refers to a salt formed by adding a suitable base to propionic acid, which can be obtained by reacting propionic acid with a base according to methods known to those skilled in the art. Salts that may be mentioned include metal salts, such as salts with alkali metals such as Na and K, and salts with alkaline earth metals such as Mg and Ca, as well as ammonium salts.

[0071] As component (c), it is preferred to use an alkali metal propionate, more preferably sodium propionate.

[0072] The amount of (c) propionic acid or a salt thereof in the composition according to the present invention may be 0.01% by mass or more, preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, relative to the total mass of the composition.

[0073] On the other hand, the amount of (c) propionic acid or a salt thereof in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less, relative to the total mass of the composition.

[0074] Therefore, the amount of (c) propionic acid or a salt thereof in the composition according to the present invention may be in the range of 0.01% by mass to 15% by mass, preferably 0.05% by mass to 10% by mass, and more preferably 0.1% by mass to 5% by mass, relative to the total mass of the composition.

[0075] (Amphoteric surfactant) The composition according to the present invention may contain (d) at least one amphoteric surfactant. A single type of amphoteric surfactant may be used, or two or more different types of amphoteric surfactants may be used in combination.

[0076] Amphoteric or zwitterionic surfactants may be, for example (but not limited to), amine derivatives, such as aliphatic secondary or tertiary amines, and optionally quaternized amine derivatives, in which the aliphatic group is a straight or branched chain containing from 8 to 22 carbon atoms and at least one water-solubilizing anionic group (e.g., carboxylate, sulfonate, sulfate, phosphate, or phosphonate).

[0077] (d) The amphoteric surfactant may preferably be selected from the group consisting of betaine and amidoamine carboxylated derivatives.

[0078] (d) The amphoteric surfactant is preferably selected from betaine surfactants.

[0079] The betaine-type amphoteric surfactant is preferably an alkyl betaine, an alkylamido alkyl betaine, a sulfobetaine, an alkyl sulfobetaine, a phosphobetaine, an alkyl phosphobetaine, or an alkylamido alkyl sulfobetaine, specifically (C8 to C 24 ) Alkyl betaine, (C8-C 24 ) Alkylamide (C1-C8) alkyl betaine, sulfobetaine, (C1-C8) alkyl sulfobetaine, phosphobetaine, (C1-C8) alkyl phosphobetaine and (C8-C 24 In one embodiment, the betaine amphoteric surfactant is selected from the group consisting of (C8-C) alkylamide (C1-C8) alkylsulfobetaines. 24 ) Alkyl betaine, (C8-C 24 ) alkylamido (C1-C8) alkylsulfobetaine, sulfobetaine, (C1-C8) alkylsulfobetaine and phosphobetaine.

[0080] Non-limiting examples that may be mentioned include the compounds classified in the CTFA International Cosmetic Ingredient Dictionary & Handbook, 15th Edition, 2014, under the names cocobetaine, laurylbetaine, cetylbetaine, coco / oleamidopropylbetaine, cocamidopropylbetaine, palmitamidopropylbetaine, stearamidopropylbetaine, cocamidoethylbetaine, cocamidopropylhydroxysultaine, oleamidopropylhydroxysultaine, cocohydroxysultaine, laurylhydroxysultaine and cocosultaine, alone or in mixtures.

[0081] Betaine-type amphoteric surfactants (betaines) are preferably alkylbetaines, alkylsulfobetaines and alkylamidoalkylbetaines, in particular cocobetaine, sulfopropylbetaine and cocamidopropylbetaine.

[0082] Among the amidoamine carboxylated derivatives, mention may be made of the products sold under the name Miranol, which are described in U.S. Pat. Nos. 2,528,378 and 2,781,354 and which are classified under the names amphocarboxyglycinates and amphocarboxypropionates in the CTFA Dictionary, Third Edition, 1982 (the disclosures of which are incorporated herein by reference), and whose respective structures are as follows: R1-CONHCH2CH2-N + (R2)(R3)(CH2COO - )M + X - (B1) [In the formula, R1 represents the alkyl, heptyl, nonyl or undecyl group of the acid R1-COOH present in the hydrolyzed coconut oil; R2 represents a beta-hydroxyethyl group; R3 represents a carboxymethyl group; M + represents a cationic ion derived from an alkali metal such as sodium, an ammonium ion, or an ion derived from an organic amine, X - denotes an organic or inorganic anion, such as a halide, acetate, phosphate, nitrate, alkyl(C1-C4)sulfate, alkyl(C1-C4)- or alkyl(C1-C4)aryl-sulfonate, in particular methylsulfate and ethylsulfate, or M + and X - does not exist]; R1'-CONHCH2CH2-N(B)(C) (B2) [In the formula, R1' is the alkyl group of the acid R1'-COOH present in coconut oil or hydrolyzed linseed oil, alkyl groups such as C7, C9, C 11 Or C 13 Alkyl group, C 17 Alkyl groups and their isoforms or unsaturated C 17 indicates a group, B represents -CH2CH2OX', C is -(CH2) z -Y' (wherein z=1 or 2), X' represents a -CH2-COOH group, -CH2-COOZ', -CH2CH2-COOH, -CH2CH2-COOZ', or a hydrogen atom; Y' represents a -COOH, -COOZ', -CH2-CHOH-SO3Z', -CH2-CHOH-SO3H group or a CH2-CH(OH)-SO3-Z' group; In these formulas, Z' represents an ion of an alkali metal or alkaline earth metal such as sodium, an ion derived from an organic amine, or an ammonium ion; and R a'' -NH-CH(Y'')-(CH2) n -C(O)-NH-(CH2) n' -N(Rd)(Re) (B'2) [In the formula, Y" represents -C(O)OH, -C(O)OZ", -CH2-CH(OH)-SO3H, or -CH2-CH(OH)-SO3-Z" (wherein Z" represents a cationic ion derived from an alkali metal such as sodium or an alkaline earth metal, an ion derived from an organic amine, or an ammonium ion); Rd and Re each represent a C1-C4 alkyl group or a C1-C4 hydroxyalkyl group; R a'' is C from the acid 10 ~C 30 represents an alkyl group or an alkenyl group represented by the formula: n and n' independently represent an integer of 1 to 3.

[0083] (d) Amphoteric surfactants having formula B1 and B2 are (C8-C 24 )-Alkyl amphomonoacetate, (C8-C 24 ) Alkyl amphodiacetate, (C8-C 24 ) alkyl amphomonopropionates, and (C8-C 24 ) alkyl amphodipropionates.

[0084] These compounds are classified in the CTFA Dictionary, 5th Edition, 1993, under the names disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caprylamphodiacetate, disodium capryloamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphopropionate, disodium caprylamphodipropionate, lauroamphodipropionic acid, and cocoamphodipropionic acid.

[0085] Mention may be made, by way of example, of cocoamphodiacetate sold under the trade name Miranol® C2M concentrate by the company Rhodia Chimie.

[0086] Among the compounds of formula (B'2), mention may be made of diethylaminopropyl cocoaspartamide sodium (CTFA), sold under the name CHIMEXANE HB by the company CHIMEX.

[0087] In one embodiment, (d) the amphoteric surfactant may be selected from N-acylamino acids, such as N-alkylaminoacetates and disodium cocoamphodiacetate, and amine oxides, such as stearamine oxide and lauramine oxide.

[0088] (d) The amphoteric surfactant is preferably selected from betaine-type surfactants, more preferably from alkyl betaines, alkyl sulfobetaines, alkylamido alkyl betaines, and mixtures thereof, and even more preferably from cocobetaine, sulfopropyl betaine, cocamidopropyl betaine, and mixtures thereof.

[0089] The amount of (d) amphoteric surfactant in the composition according to the present invention may be 0.1% by mass or more, preferably 0.5% by mass or more, and more preferably 1% by mass or more, relative to the total mass of the composition.

[0090] On the other hand, the amount of (d) amphoteric surfactant in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less, relative to the total mass of the composition.

[0091] Therefore, the amount of (d) amphoteric surfactant in the composition according to the present invention may be in the range of 0.1% by mass to 15% by mass, preferably 0.5% by mass to 10% by mass, and more preferably 1% by mass to 5% by mass, relative to the total mass of the composition.

[0092] (Monovalent non-polymeric acid or its salt) The composition according to the present invention may include (e) at least one monovalent non-polymeric acid or salt thereof. Two or more monovalent non-polymeric acids or salts thereof may be used in combination. Thus, a single type of monovalent non-polymeric acid or salt thereof, or a combination of different types of monovalent non-polymeric acids or salts thereof, may be used.

[0093] The term "non-polymeric" as used herein means that the acid is not obtained by polymerizing two or more monomers, and therefore does not correspond to acids obtained by polymerizing two or more monomers, such as polyacrylic acid.

[0094] The term "salt" as used herein refers to a salt formed by adding a suitable base to a monovalent non-polymeric acid, which can be obtained by reacting a monovalent non-polymeric acid with a base according to methods known to those skilled in the art. Examples of salts include metal salts, such as salts with alkali metals such as Na and K, and salts with alkaline earth metals such as Mg and Ca, and ammonium salts.

[0095] (e) The molecular weight of the monovalent non-polymeric acid or salt thereof is preferably less than 1,000, more preferably 500 or less, and even more preferably 100 or less.

[0096] (e) The monovalent non-polymeric acid or salt thereof can promote the dissolution of (a) the cationic polymer in water.

[0097] (e) The monovalent non-polymeric acid or salt thereof may be selected from monovalent organic or inorganic acids and salts thereof, preferably monovalent organic acids and salts thereof, and more preferably monovalent carboxylic acids and salts thereof.

[0098] The monovalent non-polymeric acid has a single acid group which may be selected from the group consisting of a carboxylic acid group, a sulfate group, a sulfonic acid group, a phosphoric acid group, a phosphonic acid group, and mixtures thereof.

[0099] The monovalent non-polymeric acid may be selected from hydroxy acids, preferably alpha-hydroxy acids, such as lactic acid and glycolic acid.

[0100] The monovalent non-polymeric acid may be a monovalent non-polymeric organic acid, preferably a monovalent non-polymeric carboxylic acid, more preferably a monovalent hydroxy acid, such as lactic acid.

[0101] The amount of (e) monovalent non-polymeric acid or salt thereof in the composition according to the present invention may be 0.001% by weight or more, preferably 0.005% by weight or more, and more preferably 0.01% by weight or more, based on the total weight of the composition.

[0102] On the other hand, the amount of (e) monovalent non-polymeric acid or its salt in the composition according to the present invention may be 1% by mass or less, preferably 0.5% by mass or less, and more preferably 0.1% by mass or less, relative to the total mass of the composition.

[0103] Therefore, the amount of (e) monovalent non-polymeric acid or its salt in the composition according to the present invention may be 0.001% by mass to 1% by mass, preferably 0.005% by mass to 0.5% by mass, and more preferably 0.01% by mass to 0.1% by mass, relative to the total mass of the composition.

[0104] (inorganic salts) The composition according to the present invention may contain (f) at least one inorganic salt. A single type of inorganic salt may be used, or two or more different types of inorganic salts may be used in combination.

[0105] It is preferred that the (f) inorganic salt is water-soluble. As used herein, the term "water-soluble" means that 10 g or more, preferably 20 g or more, and more preferably 30 g or more of the (f) inorganic salt (anhydrous form) can be dissolved in 100 mL of water at 20°C.

[0106] (f) The inorganic salt may be selected from alkali metal salts.

[0107] An alkali metal is a metallic element of Group IA of the periodic table of the elements. More preferably, the alkali metal is lithium or sodium, especially sodium.

[0108] The alkali metal salt may contain at least an alkali metal cation and at least one anion. The alkali metal cation may be a monovalent cation of an alkali metal, such as a sodium cation (Na + ). The anion that forms the alkali metal salt is not limited. Examples of the anion include inorganic anions such as halogen atom anions, sulfate anions, sulfite anions, phosphate anions, nitrite anions, nitrate anions, and carbonate anions. The anion is preferably selected from halogen atom anions, particularly chloride anions, sulfate anions, and carbonate anions. Therefore, the (f) inorganic salt can preferably be selected from the group consisting of halides, sulfates, and carbonates.

[0109] (f) The inorganic salt is preferably a normal salt. In other words, (f) the inorganic salt is preferably H + or OH - Therefore, it is preferable that the (f) inorganic salt is not a hydroxide.

[0110] (f) The inorganic salt may be selected from inorganic sodium salts, examples of which include inorganic sodium halides such as sodium chloride, sodium sulfate, sodium phosphate, sodium nitrate, and sodium carbonate.

[0111] (f) The inorganic salt is preferably an inorganic sodium halide, more preferably sodium chloride.

[0112] The amount of (f) inorganic salt in the composition according to the present invention may be 0.001% by mass or more, preferably 0.005% by mass or more, and more preferably 0.01% by mass or more, relative to the total mass of the composition.

[0113] On the other hand, the amount of (f) inorganic salt in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less, relative to the total mass of the composition.

[0114] Therefore, the amount of (f) inorganic salt in the composition according to the present invention may be 0.001% by mass to 15% by mass, preferably 0.005% by mass to 10% by mass, and more preferably 0.01% by mass to 5% by mass, relative to the total mass of the composition.

[0115] (Non-polymeric acids with two or more acid dissociation constants) The composition according to the present invention may contain (g) at least one non-polymeric acid or salt thereof having two or more pKa values, i.e., at least one non-polymeric acid or salt thereof having two or more acid dissociation constants. The pKa value (acid dissociation constant) is well known to those skilled in the art and should be determined at a certain temperature, for example, 25°C.

[0116] (g) Non-polymeric acids or salts thereof having two or more pKa values ​​can function as crosslinkers for (a) cationic polymers.

[0117] The term "non-polymeric" as used herein means that the acid is not obtained by polymerizing two or more monomers, and therefore does not correspond to acids obtained by polymerizing two or more monomers, such as polyacrylic acid.

[0118] (g) The molecular weight of the non-polymeric acid or salt thereof having two or more pKa values ​​is preferably 1,000 or less, more preferably 800 or less, and even more preferably 700 or less.

[0119] There is no limitation on the type of (g) non-polymeric acid having two or more pKa values ​​or salts thereof. Two or more different types of (g) non-polymeric acid having two or more pKa values ​​or salts thereof may be used in combination. Therefore, a single type of non-polymeric acid having two or more pKa values ​​or salts thereof, or a combination of different types of non-polymeric acids having two or more pKa values ​​or salts thereof, may be used.

[0120] The term "salt" as used herein refers to a salt formed by adding a suitable base to a non-polymeric acid having two or more pKa values, which can be obtained by reacting a non-polymeric acid having two or more pKa values ​​with a base according to a method known to those skilled in the art. Examples of salts include metal salts, such as salts with alkali metals such as Na and K, salts with alkaline earth metals such as Mg and Ca, and ammonium salts.

[0121] The non-polymeric acid or salt thereof having two or more pKa values ​​may be an organic acid or salt thereof, preferably a hydrophilic or water-soluble organic acid or salt thereof.

[0122] The non-polymeric acid having two or more pKa values ​​can have at least two acid groups selected from the group consisting of carboxylic acid groups, sulfate groups, sulfonic acid groups, phosphoric acid groups, phosphonic acid groups, phenolic hydroxyl groups, and mixtures thereof.

[0123] The non-polymeric acid having two or more pKa values ​​may be a non-polymeric polyacid such as phosphoric acid.

[0124] The non-polymeric acid having two or more pKa values ​​can be selected from the group consisting of dicarboxylic acids, disulfonic acids, and diphosphoric acids, and mixtures thereof.

[0125] (g) Non-polymeric acids or salts thereof having two or more pKa values ​​include oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, fumaric acid, maleic acid, malic acid, citric acid, aconitic acid, oxaloacetic acid, tartaric acid, and salts thereof; aspartic acid, glutamic acid, and salts thereof; terephthalylidene dicamphorsulfonic acid or its salt (Mexoryl SX), Benzophenone-9; Phytic acid and its salts; Red No. 2 (Amaranth), Red No. 102 (New Coccine), Yellow No. 5 (Tartrazine), Yellow No. 6 (Sunset Yellow FCF), Green No. 3 (Fast Green FCF), Blue No. 1 (Brilliant Blue FCF), Blue No. 2 (Indigo Carmine), Red No. 201 (Lithol Rubin B), Red No. 202 (Lithol Rubin BCA), Red No. 204 (Lake Red CBA), Red No. 206 (Lithol Red CA), Red No. 207 (Lithol Red BA), Red No. 208 (Lithol Red SR), Red No. 219 (Brilliant Lake Red R), Red No. 220 (Deep Maroon), Red No. 227 (Fast Acid Magenta), Yellow No. 203 (Quinoline Yellow) WS), Green No. 201 (Alizanin Cyanine Green F), Green No. 204 (Pyranine Conc), Green No. 205 (Light Green SF Yellow), Blue No. 203 (Patent Blue CA), Blue No. 205 (Alphazurine FG), Red No. 401 (Violamin R), Red No. 405 (Permanent Red F5R), Red No. 502 (Ponceau 3R), Red No. 503 (Ponceau R), Red No. 504 (Ponceau SX), Green No. 401 (Naphthol Green B), Green No. 402 (Guinea Green B), and Black No. 401 (Naphthol Blue Black); folic acid, ascorbic acid, erythorbic acid, and salts thereof; cystine and salts thereof; EDTA and salts thereof; glycyrrhizin and salts thereof; and mixtures thereof.

[0126] (g) It may be preferred that the non-polymeric acid or salt thereof having two or more pKa values ​​is selected from the group consisting of terephthalylidene dicamphorsulfonic acid and its salts (Mexoryl SX), Yellow No. 6 (Sunset Yellow FCF), ascorbic acid, phytic acid and their salts, and mixtures thereof.

[0127] (g) The non-polymeric acid or salt thereof having two or more pKa values ​​may be an organic acid or salt thereof, preferably a hydrophilic or water-soluble organic acid or salt thereof, more preferably phytic acid or salt thereof.

[0128] The amount of (g) the non-polymeric acid or salt thereof having two or more pKa values ​​in the composition according to the present invention may be 0.0001% by weight or more, preferably 0.0005% by weight or more, and more preferably 0.001% by weight or more, based on the total weight of the composition.

[0129] On the other hand, the amount of (g) the non-polymeric acid or salt thereof having two or more pKa values ​​in the composition according to the present invention may be 10% by mass or less, preferably 5% by mass or less, and more preferably 1% by mass or less, based on the total mass of the composition.

[0130] Therefore, the amount of (g) the non-polymeric acid or salt thereof having two or more pKa values ​​in the composition according to the present invention may be 0.0001% by mass to 10% by mass, preferably 0.0005% by mass to 5% by mass, and more preferably 0.001% by mass to 1% by mass, relative to the total mass of the composition.

[0131] (water) The composition according to the present invention may also comprise (h) water.

[0132] (h) Water may constitute an aqueous phase, which may be the continuous phase, in compositions according to the present invention.

[0133] (h) The amount of water may be 50% by weight or more, preferably 55% by weight or more, and more preferably 60% by weight or more, based on the total weight of the composition.

[0134] On the other hand, the amount of (h) water may be 95% by mass or less, preferably 80% by mass or less, and more preferably 85% by mass or less, based on the total mass of the composition.

[0135] Therefore, the amount of (h) water may be 50% by mass to 95% by mass, preferably 55% by mass to 90% by mass, and more preferably 60% by mass to 85% by mass, relative to the total mass of the composition.

[0136] (pH) The pH of the composition according to the present invention may be 3-7, preferably 4-7, and more preferably 5-7.

[0137] At a pH between 3 and 7, (a) cationic polymers can be very stable.

[0138] The pH of the composition according to the present invention can be adjusted by adding at least one alkaline agent and / or at least one acid other than (e) a monovalent non-polymeric acid or a salt thereof and (g) a non-polymeric acid having two or more pKa values ​​or a salt thereof. The pH of the composition according to the present invention can also be adjusted by adding at least one buffering agent.

[0139] (Alkaline agent) The composition according to the present invention may contain at least one alkaline agent. Two or more alkaline agents may be used in combination. Thus, a single type of alkaline agent or a combination of different types of alkaline agents may be used.

[0140] The alkaline agent may be an inorganic alkaline agent, preferably selected from the group consisting of ammonia, alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal phosphates and monohydrogen phosphates, such as sodium phosphate or sodium monohydrogen phosphate.

[0141] Examples of inorganic alkali metal hydroxides include sodium hydroxide and potassium hydroxide. Examples of alkaline earth metal hydroxides include calcium hydroxide and magnesium hydroxide. Sodium hydroxide is preferred as the inorganic alkaline agent.

[0142] The alkaline agent may be an organic alkaline agent, which is preferably selected from the group consisting of monoamines and derivatives thereof, diamines and derivatives thereof, polyamines and derivatives thereof, basic amino acids and derivatives thereof, oligomers of basic amino acids and derivatives thereof, polymers of basic amino acids and derivatives thereof, urea and derivatives thereof, and guanidine and derivatives thereof.

[0143] Examples of organic alkaline agents include alkanolamines, such as mono-, di-, and triethanolamine, and isopropanolamine, urea, guanidine and their derivatives, basic amino acids, such as ornithine, and diamines, such as those having the following structure:

[0144] [ka]

[0145] (wherein R represents alkylene such as propylene optionally substituted with a hydroxyl group or a C1-C4 alkyl group, and R1, R2, R3, and R4 independently represent a hydrogen atom, an alkyl group, or a C1-C4 hydroxyalkyl group), and examples thereof include 1,3-propanediamine and derivatives thereof.

[0146] The alkaline agents can be used in a total amount of 0.01% to 15% by mass, preferably 0.02% to 10% by mass, and more preferably 0.03% to 5% by mass, based on the total mass of the composition, depending on their solubility.

[0147] (acid) The composition according to the present invention may comprise at least one acid. Two or more acids may be used in combination. Thus, a single type of acid or a combination of different types of acids may be used.

[0148] The acid may be any inorganic or organic acid commonly used in cosmetics, preferably an inorganic acid. Monobasic and / or polybasic acids may be used. Hydrochloric acid (HCl) may be preferred.

[0149] Depending on their solubility, the acids may be used in a total amount of 0.01% to 15% by weight, preferably 0.02% to 10% by weight, more preferably 0.03% to 5% by weight, relative to the total weight of the composition.

[0150] (Optional Ingredients) In addition to the above-mentioned components, the composition according to the present invention may contain optional components typically used in cosmetics, specifically, preservatives such as phenoxyethanol, organic or inorganic UV filters, cationic or nonionic surfactants / emulsifiers, for example, (a) hydrophilic or lipophilic thickeners derived from synthetic polymers other than cationic polymers, volatile or nonvolatile organic solvents such as ethanol, anionic or amphoteric polymers, nonionic polymers such as beta-glucans, silicones and silicone derivatives, natural extracts derived from animals or plants other than (a) cationic polymers, oils, waxes, etc., within a range that does not impair the effects of the present invention.

[0151] The composition according to the present invention may contain the above-mentioned optional additives in an amount of 0.01% to 30% by weight, preferably 0.05% to 20% by weight, more preferably 0.1% to 10% by weight, relative to the total weight of the composition.

[0152] The composition according to the invention may contain very limited amounts of silicones due to environmental compatibility considerations.

[0153] The amount of silicone in the composition according to the invention may be 1% by weight or less, preferably 0.1% by weight or less, more preferably 0.01% by weight or less, relative to the total weight of the composition. It is particularly preferred that the composition according to the invention is silicone-free.

[0154] [Preparation] The composition according to the present invention can be prepared by mixing the essential components described above and the optional components (if necessary) described above.

[0155] The method and means for mixing the above essential components and optional components are not limited. Any conventional method and means can be used to mix the above essential components and optional components to prepare the composition according to the present invention.

[0156] The composition according to the present invention can be prepared by simple or easy mixing using conventional mixing means such as stirrers and homogenizers, and heating may not be required. Therefore, the method for preparing the composition according to the present invention can be environmentally friendly.

[0157] [Beauty use] The composition according to the present invention may be intended to be used as a cosmetic composition. Thus, the cosmetic composition according to the present invention may be intended to be applied to keratinous materials. In this specification, keratinous materials refer to materials containing keratin as a main component, and examples thereof include skin, scalp, nails, lips, hair, etc. Therefore, it is preferred that the cosmetic composition according to the present invention be used in a cosmetic method for keratinous materials, preferably hair and skin, more preferably skin, and even more preferably scalp.

[0158] In one embodiment, the cosmetic composition according to the present invention may be a dermocosmetic composition, preferably a skin care composition, more preferably a scalp care composition.

[0159] In another embodiment, the cosmetic composition according to the present invention may be a cleansing composition, preferably a cleansing composition for keratinous fibers such as hair, more preferably a shampoo composition.

[0160] The composition according to the present invention may be a leave-on type or a rinse-off type. A leave-on type composition is not rinsed off after application to keratinous materials. A rinse-off type composition is rinsed off after application to keratinous materials. The composition according to the present invention is preferably a rinse-off type composition.

[0161] [form] The form of the composition according to the present invention is not limited.

[0162] The composition according to the present invention can be used in a temperature controlled environment at atmospheric pressure (760 mmHg or 10 5 The composition may be in the form of a fluid, preferably in the form of a liquid or paste, more preferably in the form of a liquid, at room temperature such as 25° C. under a temperature of 200° C. (at 25° C.).

[0163] The composition according to the invention may be in the form of a solution, dispersion or suspension.

[0164] The compositions according to the invention may be transparent or translucent.

[0165] Clarity can be measured by measuring turbidity (for example, turbidity can be measured with a 2100Q (commercially available from HACH) equipped with a round cell (diameter 25 mm and height 60 mm) and a tungsten filament bulb capable of emitting visible light (between 400 and 800 nm, preferably 400-500 nm). Measurements can be performed on undiluted compositions. A blank can be determined using distilled water.

[0166] Compositions according to the present invention may preferably have a turbidity of less than 200 NTU, preferably less than 150 NTU, more preferably less than 100 NTU, even more preferably less than 50 NTU.

[0167] [Method and Use] The present invention also relates to a cosmetic method for keratinous materials such as the scalp, comprising the steps of applying a composition according to the present invention to the keratinous materials and rinsing the composition from the keratinous materials.

[0168] Cosmetic method means herein a non-therapeutic cosmetic method for caring for the surface of keratinous materials such as the scalp.

[0169] The present invention also provides a method for forming a coacervate by diluting a composition with water, the composition comprising: (a) at least one cationic polymer; (b) at least one anionic surfactant, and (c) Propionic acid or its salts Including, The present invention may also relate to a method wherein (a) the cationic polymer is selected from chitosan having a molecular weight of more than 3,000, preferably more than 5,000, more preferably more than 10,000.

[0170] The present invention also provides (a) at least one cationic polymer, and (b) at least one anionic surfactant in a composition comprising: (c) Propionic acid or its salts Including, (a) the cationic polymer is selected from chitosan having a molecular weight of more than 3,000, preferably more than 5,000, more preferably more than 10,000; It may also involve use for forming a coacervate when the composition is diluted with water.

[0171] The coacervate can include (c) propionic acid or a salt thereof.

[0172] The compositions in the above methods and uses according to the present invention may also comprise (d) at least one amphoteric surfactant and / or (e) at least one monovalent non-polymeric acid or salt thereof and / or (f) at least one inorganic salt and / or (g) at least one non-polymeric acid having two or more pKa values ​​and / or (h) water.

[0173] The above descriptions regarding (a) cationic polymer, (b) anionic surfactant, (c) propionic acid or a salt thereof, (d) at least one amphoteric surfactant, (e) at least one monovalent non-polymeric acid or a salt thereof, (f) at least one inorganic salt, (g) at least one non-polymeric acid having two or more pKa values, and (h) water for the composition according to the present invention can be applied to those in the composition in the above-mentioned method and use according to the present invention. [Example]

[0174] The present invention will now be described in more detail by way of examples, which should not, however, be construed as limiting the scope of the present invention.

[0175] (Examples 1 to 3 and Comparative Examples 1 to 6) [Preparation] Each of the compositions according to Examples 1 to 3 and Comparative Examples 1 to 6 was prepared by mixing the components shown in Table 1. All numerical values ​​for the amounts of components in Table 1 are based on "mass %" of the raw materials.

[0176] [Table 1]

[0177] [evaluation] (Coacervate formation) Each of the compositions (5 g) according to Examples 1 to 3 and Comparative Examples 1 to 6 was diluted with water (45 g). The mixture thus obtained was vigorously stirred and then allowed to stand at room temperature (25°C) for more than one day. The formation of coacervates was visually determined based on whether the mixture showed a cloudy appearance, according to the following criteria: Yes: Cloudy appearance was observed None: No cloudy appearance was observed

[0178] The results are shown in Table 1.

[0179] (summary) Coacervate formation was observed only in the compositions according to Examples 1 to 3, which contained relatively higher molecular weight chitosan. The presence of sodium chloride (Example 2) or phytic acid (Example 3) did not affect coacervate formation.

[0180] On the other hand, coacervate formation was not observed in the compositions according to Comparative Examples 1 to 6, which contained no chitosan (Comparative Example 1), no surfactant (Comparative Example 2), polyquaternium-10 (Comparative Example 3), polyquaternium-7 (Comparative Example 4), polylysine (Comparative Example 5), and a relatively lower molecular weight chitosan (Comparative Example 6), respectively.

Claims

1. (a) at least one cationic polymer; (b) at least one anionic surfactant, and (c) Propionic acid or its salts Including, A composition, preferably a cosmetic composition, more preferably a cosmetic composition for keratinous materials such as the scalp, even more preferably a shampoo composition, wherein the (a) cationic polymer is selected from chitosan having a molecular weight of more than 3,000, preferably more than 5,000, more preferably more than 10,000.

2. 2. The composition according to claim 1, wherein the molecular weight of the (a) cationic polymer is less than 2,000,000, preferably less than 1,500,000, and more preferably less than 1,000,000.

3. 3. The composition according to claim 1, wherein the amount of the (a) cationic polymer in the composition is 0.001% by weight to 15% by weight, preferably 0.005% by weight to 10% by weight, and more preferably 0.01% by weight to 5% by weight, relative to the total weight of the composition.

4. The composition according to any one of claims 1 to 3, wherein the (b) anionic surfactant is selected from alkyl sulfates, alkyl ether sulfates, and mixtures thereof.

5. The (b) anionic surfactant is (C 6 ~C 30 5. The composition according to claim 1, wherein the alkyl ether sulfate is selected from alkyl ether sulfates, such as sodium laureth sulfate.

6. The composition according to any one of claims 1 to 5, wherein the amount of the (b) anionic surfactant in the composition is 1% by mass to 25% by mass, preferably 5% by mass to 20% by mass, and more preferably 10% by mass to 15% by mass, relative to the total mass of the composition.

7. The composition according to any one of claims 1 to 6, wherein the amount of (c) propionic acid or a salt thereof in the composition is 0.01% by mass to 15% by mass, preferably 0.05% by mass to 10% by mass, and more preferably 0.1% by mass to 5% by mass, relative to the total mass of the composition.

8. 8. The composition of claim 1, further comprising (d) at least one amphoteric surfactant.

9. 9. The composition according to claim 8, wherein the (d) amphoteric surfactant is selected from betaine-type surfactants, preferably from alkyl betaines, alkyl sulfobetaines, alkylamido alkyl betaines, and mixtures thereof, more preferably from cocobetaine, sulfopropyl betaine, cocamidopropyl betaine, and mixtures thereof.

10. The composition according to claim 8 or 9, wherein the amount of the (d) amphoteric surfactant in the composition is 0.1% by mass to 15% by mass, preferably 0.5% by mass to 10% by mass, and more preferably 1% by mass to 5% by mass, relative to the total mass of the composition.

11. 11. The composition of claim 1, further comprising: (e) at least one monovalent non-polymeric acid or salt thereof.

12. The composition according to claim 11, wherein the (e) monovalent non-polymeric acid is a monovalent non-polymeric organic acid, preferably a monovalent non-polymeric carboxylic acid, more preferably a monovalent hydroxy acid, such as lactic acid.

13. 13. The composition of claim 1, further comprising (f) at least one inorganic salt.

14. 14. The composition of claim 1, further comprising: (g) at least one non-polymeric acid or salt thereof having two or more pKa values.

15. A cosmetic method for keratinous materials such as the scalp, comprising: applying to the keratinous materials a composition according to any one of claims 1 to 14; rinsing the composition from the keratinous materials; Beauty methods, including:

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