Composition comprising polyion complex and wax

Abstract

The present invention relates to a composition comprising: (a) at least one cationic polymer; (b) at least one anionic polymer; (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; and (d) at least one wax, wherein the (a) cationic polymer is selected from polylysines, chitosans, and mixtures thereof, the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof, and the amount of the (d) wax is 1% by weight or more, relative to the total weight of the composition. The composition according to the present invention can have good anti-transfer property.

Description

[0001] DESCRIPTION

[0002] TITLE OF INVENTION

[0003] COMPOSITION COMPRISING POLYION COMPLEX AND WAX

[0004] TECHNICAL FIELD

[0005] The present invention relates to a composition including a polyion complex and wax, as well as a cosmetic process using the composition.

[0006] BACKGROUND ART

[0007] As is known in the art, certain cosmetic compositions use a polyion complex, which is formed with an anionic polymer and a cationic polymer.

[0008] For example, WO 2021 / 125069 discloses a composition which is useful for cosmetic treatments and comprises at least one polyion complex particle comprising at least one cationic polymer, at least one anionic polymer, and at least one non-polymeric acid having two or more pKa values. WO 2021 / 125069 also discloses that the composition disclosed therein may include oil and may be in the form of an emulsion.

[0009] On the other hand, compositions with good transfer resistance have been required, in particular, cosmetic products such as makeup cosmetics in order to prevent or reduce, for example, the color transfer of the cosmetic products from keratin materials such as skin to articles such as masks. Even for non-makeup cosmetics such as skincare cosmetics, the transfer of the cosmetics from keratin materials such as skin to articles such as masks is not preferable because the transfer could reduce the effects by the skincare cosmetics by the loss of the skincare cosmetics to the keratin materials.

[0010] DISCLOSURE OF INVENTION

[0011] There is a need for a composition which has good anti-transfer property.

[0012] Thus, an objective of the present invention is to provide a composition which can have good anti -transfer property.

[0013] The above objective of the present invention can be achieved by a composition, preferably a cosmetic composition, and more preferably a cosmetic composition for a keratin material such as skin, comprising:

[0014] (a) at least one cationic polymer;

[0015] (b) at least one anionic polymer;

[0016] (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; and

[0017] (d) at least one wax, wherein the (a) cationic polymer is selected from polylysines, chitosans, and mixtures thereof, the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof, and the amount of the (d) wax is 1 % by weight or more, relative to the total weight of the composition. The (a) cationic polymer may be selected from polylysines.

[0018] The amount of the (a) cationic polymer(s) in the composition according to the present invention may be from 0.001% to 15% by weight, preferably from 0.002% to 10% by weight, and more preferably from 0.003% to 5% by weight, relative to the total weight of the composition.

[0019] The (b) anionic polymer may be selected from the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, acetylated hyaluronic acid, hyaluronic acid crosspolymer, a salt thereof, and a mixture thereof.

[0020] The (b) anionic polymer may be selected from the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, a salt thereof, and a mixture thereof, preferably the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, an alkaline metal salt thereof, and a mixture thereof, and more preferably the group consisting of hyaluronic acid, sodium hyaluronate, hydrolyzed hyaluronic acid, sodium hydrolyzed hyaluronic acid, and a mixture thereof.

[0021] The composition according to the present invention may comprise, as the (b) anionic polymers, at least two hyaluronic acids or salts thereof with different molecular weights, preferably a first hyaluronic acid or a salt thereof with a molecular weight of 100 kDa or less and a second hyaluronic acid or a salt thereof with a molecular weight of 500 kDa or more, and more preferably a first hyaluronic acid or a salt thereof with a molecular weight of 50 kDa or less and a second hyaluronic acid or a salt thereof with a molecular weight of 1,000 kDa or more.

[0022] The amount of the (b) anionic polymer(s) in the composition according to the present invention may be from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition.

[0023] The (c) non-polymeric acid having two or more pKa values or salt(s) thereof may be an organic acid or salt(s) thereof, preferably a hydrophilic or water-soluble organic acid or salt(s) thereof, and more preferably phytic acid or salts thereof.

[0024] The amount of the (c) non-polymeric acid(s) having two or more pKa values or salt(s) thereof in the composition according to the present invention may be from 0.001% to 15% by weight, preferably from 0.002% to 10% by weight, and more preferably from 0.003% to 5% by weight, relative to the total weight of the composition.

[0025] The (d) wax may have a melting point of 40°C or more, preferably 50°C or more, and more preferably 60°C or more.

[0026] The (d) wax may be selected from synthetic waxes.

[0027] The (d) wax may be selected from Fischer-Tropsch waxes.

[0028] The amount of the (d) wax(es) in the composition according to the present invention may be from 1% to 50% by weight, preferably from 1.1% to 40% by wright, and more preferably from 1.2% to 30% by weight, relative to the total weight of the composition.

[0029] The composition according to the present invention may further comprise (e) water.

[0030] The present invention also relates to a cosmetic process for a keratin material such as skin, comprising applying to the keratin material the composition according to the present invention.

[0031] BEST MODE FOR CARRYING OUT THE INVENTION

[0032] After diligent research, the inventors have discovered that it is possible to provide a composition which can have good anti-transfer property.

[0033] Thus, the composition according to the present invention comprises:

[0034] (a) at least one cationic polymer;

[0035] (b) at least one anionic polymer;

[0036] (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; and

[0037] (d) at least one wax, wherein the (a) cationic polymer is selected from polylysines, chitosans, and mixtures thereof, the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof, and the amount of the (d) wax is 1% by weight or more, relative to the total weight of the composition.

[0038] The (a) cationic polymer, the (b) anionic polymer, and the (c) non-polymeric acid having two or more pKa values or salt(s) thereof can form a polyion complex. In particular, the (a) cationic polymer can be ionically crosslinked by the (c) non-polymeric acid having two or more pKa values or salt(s) thereof.

[0039] The poly ion complex may be in the form of a droplet. If the polyion complex is in the form of a droplet, the size of the droplet may be from 5 nm to 100 pm, preferably from 100 nm to 50 pm, more preferably from 200 nm to 40 pm, and even more preferably from 500 nm to 30 pm. A droplet size less than 1 pm can be measured by a dynamic light scattering method, and a droplet size more than 1 pm can be measured by an optical microscope.

[0040] The composition according to the present invention can have good anti-transfer property, i.e., good transfer resistance.

[0041] Thus, the composition according to the present invention can provide deposits or films on keratin materials such as skin, wherein the deposits or films stay on the keratin materials and are not readily transferred from the keratin materials to articles which the keratin materials contact. For example, the composition according to the present invention which is applied onto skin such as facial skin does not readily transfer or migrate to articles such as masks or objects such as fingers, which contact the skin.

[0042] If the cosmetic composition according to the present invention is, for example, a makeup cosmetic composition, the composition can show good color transfer resistance, and therefore, it is difficult for the composition to migrate or move to color articles which contact the composition. Thus, it is possible for the cosmetic composition according to the present invention to provide long-lasting makeup effects and / or to reduce smear on the articles.

[0043] If the cosmetic composition position is, for example, a skincare cosmetic composition, the composition can also show good transfer resistance, and therefore, it is difficult for the composition to migrate or move to articles which contact the composition. Thus, it is possible for the cosmetic composition according to the present invention to provide long-lasting skincare effects and / or to reduce smear on the articles.

[0044] Accordingly, the present invention can provide a user with long-lasting cosmetic effects such as skincare effects even when, for example, using a mask on the face of the user or touching the face of the user with fingers without realizing it.

[0045] Further, the composition according to the present invention can provide cosmetic effects, such as moisturizing and anti-wrinkle effects, based on the hyaluronic acid, derivatives thereof or salts thereof.

[0046] Furthermore, as polylysines and chitosans as well as hyaluronic acid, derivatives thereof and salts thereof can be obtained from natural sustainable resources, such as biomass, the (a) cationic polymer and the (b) anionic polymer may be environmentally-friendly ingredients. Therefore, the composition according to the present invention can include an environmentally-friendly ingredient.

[0047] Hereinafter, the present invention will be explained in a more detailed manner.

[0048] [Composition]

[0049] The composition according to the present invention comprises:

[0050] (a) at least one cationic polymer;

[0051] (b) at least one anionic polymer;

[0052] (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; and

[0053] (d) at least one wax, wherein the (a) cationic polymer is selected from polylysines, chitosans, and mixtures thereof, the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof, and the amount of the (d) wax is 1% by weight or more, relative to the total weight of the composition.

[0054] (Cationic Polymer)

[0055] The composition according to the present invention comprises (a) at least one cationic polymer. Two or more different types of cationic polymers may be used in combination. Thus, a single type of a cationic polymer or a combination of different types of cationic polymers may be used.

[0056] The (a) cationic polymer has a positive charge density. The charge density of the (a) cationic polymer may be from 0.01 meq / g to 20 meq / g, preferably from 0.05 to 15 meq / g, and more preferably from 0.1 to 10 meq / g. The molecular weight (Da) of the (a) cationic polymer may be less than 20,000, preferably less than 15,000, and more preferably less than 10,000.

[0057] The molecular weight (Da) of the (a) cationic polymer may be more than 1,000, preferably more than 1,500, and more preferably more than 2,000.

[0058] Thus, the molecular weight (Da) of the (a) cationic polymer may be more than 1,000 and less than 20,000, preferably more than 1,500 and less than 15,000, and more preferably more than 2,000 and less than 10,000.

[0059] Unless otherwise defined in the descriptions, “molecular weight” means a weight average molecular weight. The molecular weight can be measured or determined by a gel permeation chromatography, for example, in accordance with ASTM D5296-19.

[0060] According to the present invention, the (a) cationic polymer is selected from the group consisting of polylysines chitosans, and mixtures thereof.

[0061] Polylysine is well known.

[0062] Polylysines correspond to the condensation of several amino acids of lysine. Polylysine can be a natural homopolymer of L-lysine that can be produced by bacterial fermentation. Polylysines are typically used as a natural preservative in food products. Polylysine is a polyelectrolyte which is soluble in polar solvents such as water.

[0063] Polylysine can be, for example, epsilon-polylysine (or referred as “s-polylysine”), which is a condensation of amino groups at the s-position and carboxyl groups of lysines, or alphapolylysine (or referred as “a-polylysine”), which is a condensation of amino groups at the a- position and carboxyl groups of lysines. Polylysine is commercially available in various forms, such as poly D-lysine and poly L-lysine. The polylysine is generally a condensate of L-lysines, i.e., poly L-lysine. It is preferable that the polylysine is POLYEPSILON-LYSINE (INCI name).

[0064] As an example of polylysine, mention may be made of:

[0065] Epsilon-poly-L-lysine of JNC CORPORATION which is a 25% solution of Epsilon- poly-L-lysine having a molecular weight of around 4,700 in aqueous solution; and

[0066] Polylysine (poly-s-lysine) of Shandong Freda Biotechnology which is in the form of white to creamy yellow powder and has a molecular weight between 4,130 and 5,776.

[0067] According to one particular embodiment, the polylysine may be a modified polylysine, for example, a polylysine with a fatty chain as described in application FR 2889448, a polylysine with a guanidine or biguanidine function as described in application FR 2851465, a thiolated polylysine as described in the application FR2853533.

[0068] The polylysine may be in the form of organic or inorganic salts. The addition salts with an acid are, for example, the hydrochloric or hydrobromic acid, sulfuric acid, citric acid, succinic acid, tartaric acid, lactic acid, para-toluenesulphonic acid, phosphoric acid, or acetic acid salts; or fatty acid salts, such as linoleic acid, oleic acid, palmitic acid, stearic acid, behenic acid, and 18-methylicosanoic acid. The addition salts with a base are, for example, a sodium salt, a calcium salt, or a hydroxyalkylamine salt, for example, N-methylglucamine, aminopropane diol or triethanolamine. In some preferred embodiments of the present invention, the poly lysine of the present invention is present in a form of a single molecule in the composition, or is not covalently bound to other compounds. In one embodiment of the present invention, the polylysine is not covalently bound to dye compounds. In one embodiment of the present invention, the polylysine is not covalently bound to polyorganosiloxane compounds. The term “polyorganosiloxane” is well-known in the art to mean compounds having Si-0 main chain and organic functional groups attached to the main chain.

[0069] In another embodiment of the present invention, the poly lysine is in the free form. The term “free form” here indicates that the polylysine is not covalently bound to any other compounds.

[0070] Chitosan is also well known.

[0071] Chitosan is very uncommon in nature. It is only reported in the exoskeletons of certain insects such as termite queens and in the cell walls of a particular class of fungi, zygomycetes.

[0072] Chitosan may be obtained by deacetylation of chitin. Chitin is a polysaccharide composed of several N-acetyl-D-glucosamine units linked together by a type P bond (1,4).

[0073] The ideal chemical structure of chitosan is a sequence of P-D-glucosamine monomers connected by a glycosidic bond (1— 4).

[0074] "Chitosan" according to the present invention means any copolymer formed of constituent units N-acetyl-D-glucosamine and D-glucosamine, whose degree of acetylation 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 type bonds (1,4) and is a polymer of the Poly (N-acetyl-D-glucosamine)-poly (D-glucosamine) type.

[0075] More preferably, the degree of acetylation of chitosan is less than or equal to 40%, preferably less than or equal to 35%, preferably less than or equal to 25%, preferably less than or equal to 15%, and preferably less than or equal to 10%.

[0076] The degree of acetylation is the percentage of acetylated units relative to the number of total units, it can be determined by Fourier transform infrared spectroscopy (FT-IR) or by titration by a strong base.

[0077] The chitosan of the present invention is preferably a polysaccharide prepared from a fungal origin. In particular, it is extracted and purified from safe and abundant food or biotechnological fungal sources such as Agaricus bisporus or Aspergillus niger.

[0078] The chitosan of the present invention is preferably derived from the mycelium of a fungus of the Ascomycete type, and in particular Aspergillus niger and / or a Basidiomycete fungus, and in particular Lentinula edodes (shiitake) and / or Agaricus bisporus. Preferably the fungus is Aspergillus niger.

[0079] Chitosan may be of GMO (Genetically Modified Organisms) origin, but preferably is of nonGMO origin. The chitosan according to the present invention is native, that is to say that it is not modified. In particular, it does not contain any chemical modification.

[0080] One method of preparing chitosan is that described in WO03 / 068824.

[0081] The amount of the (a) cationic polymer(s) in the composition according to the present invention may be 0.001% by weight or more, preferably 0.002% by weight or more, and more preferably 0.003% by weight or more, relative to the total weight of the composition.

[0082] The amount of the (a) cationic polymer(s) in the composition according to the present invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less, relative to the total weight of the composition.

[0083] The amount of the (a) cationic polymer(s) in the composition according to the present invention may be from 0.001% to 15% by weight, preferably from 0.002% to 10% by weight, and more preferably from 0.003% to 5% by weight, relative to the total weight of the composition.

[0084] (Anionic Polymer)

[0085] The composition according to the present invention comprises (b) at least one anionic polymer. Two or more different types of anionic polymers may be used in combination. Thus, a single type of an anionic polymer or a combination of different types of anionic polymers may be used.

[0086] The (b) anionic polymer has a negative charge density. The charge density of the (b) anionic polymer may be from 0.1 meq / g to 20 meq / g, preferably from 1 to 15 meq / g, and more preferably from 4 to 10 meq / g, if the (b) anionic polymer is a synthetic anionic polymer, and the average substitution degree of the (b) anionic polymer may be from 0.1 to 3.0, preferably from 0.2 to 2.7, and more preferably from 0.3 to 2.5, if the (b) anionic polymer is a natural anionic polymer.

[0087] According to the present invention, the (b) anionic polymer is selected from hyaluronic acids, derivatives thereof, salts thereof, and mixtures thereof.

[0088] The term "hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof' comprises, in the context of the present invention, hyaluronic acid, hyaluronic acid salts, hyaluronic acid derivatives, hyaluronic acid derivative salts, and mixtures thereof.

[0089] Hyaluronic acid is a predominant glucosaminoglycan found in the skin. Thus, the fibroblasts synthesize predominantly collagens, matrix glycoproteins other than collagens (fibronectin, laminin), proteoglycans and elastin. The keratinocytes, for their part, synthesize predominantly sulfated glycosaminoglycans and hyaluronic acid. Hyaluronic acid is also called hyaluronan.

[0090] Hyaluronic acid is present in the free state in the epidermis and in the dermis and is responsible for turgescence of the skin. This polysaccharide can in fact retain a large volume of water, corresponding to up to 1000 times its weight. In this sense, hyaluronic acid plays an important role in increasing the amounts of water bound in the tissue, and also in the mechanical properties of the skin and in wrinkle formation.

[0091] Hyaluronic acid can be represented by the following chemical formula.

[0092] In the context of the present invention, the term "hyaluronic acid" covers, in particular the basic unit of hyaluronic acid of formula:

[0093] The above is the smallest fraction of hyaluronic acid, comprising a disaccharide dimer, namely D-glucuronic acid and N-acetylglucosamine.

[0094] The term "hyaluronic acid" comprises, in the context of the present invention, the linear polymer comprising the polymeric unit described above, linked together in the chain via alternating p(l ,4) and P(1 ,3) glycosidic linkages, having a molecular weight (Mw) that may range between 380 and 13 000 000 daltons. This molecular weight depends in large part on the source from which the hyaluronic acid is obtained and / or on the preparation methods.

[0095] The term “hyaluronic acid” also comprises, in the context of the present invention, hydrolysed hyaluronic acid.

[0096] The term "hyaluronic acid derivatives" comprises, in the context of the present invention, hyaluronic acid esters in particular those in which all or some of the carboxylic groups of the acid functions are esterified with oxyethylenated alkyls or alcohols, containing from 1 to 20 carbon atoms, in particular with a degree of substitution at the level of the D-glucuronic acid of the hyaluronic acid ranging from 0.5% to 50%.

[0097] Mention may in particular be made of methyl, ethyl, n-propyl, n-pentyl, benzyl and dodecyl esters of hyaluronic acid. Such esters have in particular been described in D. Campoccia et al. "Semisynthetic resorbable materials from hyaluronan esterification", Biomaterials 19 (1998) 2101-2127.

[0098] In one embodiment, the hyaluronic acid derivative may be, for example, acetylated hyaluronic acid.

[0099] As hyaluronic acid salts or hyaluronic acid derivative salts, mention may be made of alkaline metal salts such as sodium salt and potassium salt, alkaline earth metal salts such as magnesium salts, ammonium salts, and mixtures thereof.

[0100] In one embodiment, it may be preferable that the (b) anionic polymer be selected from the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, acetylated hyaluronic acid, hyaluronic acid crosspolymer, a salt thereof, and a mixture thereof. For example, the (b) anionic polymer may be selected from the group consisting of hyaluronic acid, sodium hyaluronate, potassium hyaluronate, sodium hydrolyzed hyaluronate, hydrolyzed hyaluronic acid, sodium acetylated hyaluronate, sodium hyaluronate crosspolymer, and a mixture thereof.

[0101] In another embodiment, it may be preferable that the (b) anionic polymer be selected from the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, a salt thereof, and a mixture thereof, more preferably the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, an alkaline metal salt thereof, and a mixture thereof, and even more preferably the group consisting of hyaluronic acid, sodium hyaluronate, hydrolyzed hyaluronic acid, sodium hydrolyzed hyaluronic acid, and a mixture thereof.

[0102] In another embodiment, it may be preferable that the (b) anionic polymer be selected from hyaluronic acid salts, more preferably hyaluronic acid alkaline metal salts, and even more preferably sodium hyaluronate.

[0103] The molecular weight of the (b) anionic polymer is not limited. The molecular weight of the (b) anionic polymer may be 5 kDa or more, preferably 20 kDa or more, and more preferably 100 kDa or more. The molecular weight of the (b) anionic polymer may be 20 MDa or less, preferably 10 MDa or less, and more preferably 2,000 kDa or less. Thus, the molecular weight of the (b) anionic polymer may be from 5 kDa to 20 MDa, preferably from 20 kDa to 10 MDa, and more preferably from 100 kDa to 2,000 kDa.

[0104] Unless otherwise defined in the descriptions, “molecular weight” may mean a weight average molecular weight. The molecular weight can be measured or determined by a gel permeation chromatography, for example, in accordance with ASTM D5296-19.

[0105] The (b) anionic polymer may, in particular, be hyaluronic acid supplied by the company Centipro under the trade name Hy Active™ (Mw: 10 to 150 kDa), by the company Givaudan under the trade name Cristalhyal® (Mw; 1 to 1.4 MDa), by the company Bioland under the trade name Nutra™ HA (Mw: 907,600 Da), by the company Bioland under the trade name Nutra™ HAF (Mw: 74,600 Da), by the company Bioland under the trade name Oligo™ HA (Mw: 0.5 to 10.1 kDa), by the company Res Pharma under the trade name D-F actor® (Mw: 380 Da), or by the company Bloomage Biotechnology under the trade name Hybloom™ Sodium Hyaluronate (HA-T) (Mw: 1,100 kDa) and Hybloom™ Low Molecular Weight Sodium Hyaluronate (HA-TLM) (Mw: 20 to 50 kDa), as well as hydrolyzed hyaluronic acid supplied by the company Givaudan under the trade name of PrimalHyal™ 50 (Mw: 20kD to 50kD).

[0106] It is preferable that the composition according to the present invention comprises at least two hyaluronic acids or salts thereof with different molecular weights, as the (b) anionic polymers.

[0107] It may be preferable that the two hyaluronic acids or salts thereof be a combination of the high-molecular-weight hyaluronic acid or a salt thereof and of the medium-molecular weight hyaluronic acid or a salt thereof, a combination of the high-molecular-weight hyaluronic acid or a salt thereof and of the low-molecular weight hyaluronic acid or a salt thereof, or a combination of the intermediate-molecular-weight hyaluronic acid or a salt thereof and of the low-molecular weight hyaluronic acid or a salt thereof.

[0108] It may be preferable that the composition according to the present invention comprises a first hyaluronic acid or a salt thereof with a molecular weight of less than 1 ,000 kDa and a second hyaluronic acid or a salt thereof with a molecular weight of 1,000 kDa or more.

[0109] In one embodiment, it may be more preferable that the composition according to the present invention comprises a first hyaluronic acid or a salt thereof with a molecular weight of 100 kDa or less and a second hyaluronic acid or a salt thereof with a molecular weight of 500 kDa or more, and more preferably a first hyaluronic acid or a salt thereof with a molecular weight of 50 kDa or less and a second hyaluronic acid or a salt thereof with a molecular weight of 1,000 kDa or more.

[0110] The weight ratio of the amount of the first hyaluronic acid (or a salt thereof) / the amount of the second hyaluronic acid (or a salt thereof) may be 1 or more, preferably 5 or more, more preferably 10 or more, and even more preferably 20 or more. The weight ratio of the amount of the first hyaluronic acid (or a salt thereof) / the amount of the second hyaluronic acid (or a salt thereof) may be 100 or less, preferably 90 or less, more preferably 80 or less, and even more preferably 70 or less.

[0111] By using a combination of the at least two hyaluronic acids or salts thereof, with different molecular weights, the texture of the composition according to the present invention may be improved.

[0112] The amount of the (b) anionic polymer(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0113] The amount of the (b) anionic polymer(s) in the composition according to the present invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less, relative to the total weight of the composition.

[0114] The amount of the (b) anionic polymer(s) in the composition according to the present invention may be from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition.

[0115] (Non-Polymeric Acid Having Two or More Acid Dissociation Constants)

[0116] The composition according to the present invention includes (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof, i.e., at least one non-polymeric acid having two or more acid dissociation constants or salt(s) thereof. The pKa value (acid dissociation constant) is well known to those skilled in the art, and should be determined at a constant temperature such as 25°C.

[0117] The (c) non-polymeric acid having two or more pKa values or salt(s) thereof can be included in the polyion complex which may be in the form of a droplet. The non-polymeric acid having two or more pKa values can function as a crosslinker for the (a) cationic polymer, or the (a) cationic polymer and the (b) anionic polymer.

[0118] The term “non-polymeric” here means that the acid is not obtained by polymerizing two or more monomers. Therefore, the non-polymeric acid does not correspond to an acid obtained by polymerizing two or more monomers such as polycarboxylic acid.

[0119] It is preferable that the molecular weight of the (c) non-polymeric acid having two or more pKa values or salt(s) thereof is 1000 or less, preferably 800 or less, and more preferably 700 or less.

[0120] There is no limit to the type of the (c) non-polymeric acid having two or more pKa values or salt(s) thereof. Two or more different types of non-polymeric acids having two or more pKa values or salts thereof may be used in combination. Thus, a single type of a non-polymeric acid having two or more pKa values or a salt thereof or a combination of different types of non-polymeric acids having two or more pKa values or salts thereof may be used.

[0121] The term "salt" here means a salt formed by addition of suitable base(s) to the non-polymeric acid having two or more pKa values, which may be obtained from a reaction with the non- polymeric acid having two or more pKa values with the base(s) according to methods known to those skilled in the art. As the salt, mention may be made of metal salts, for example salts with alkaline metal such as Na and K, and salts with alkaline earth metal such as Mg and Ca, and ammonium salts.

[0122] The (c) non-polymeric acid having two or more pKa values or salt(s) thereof may be an organic acid or salt(s) thereof, and preferably a hydrophilic or water-soluble organic acid or salt(s) thereof.

[0123] The non-polymeric acid having two or more pKa values may have at least two acid groups selected from the group consisting of a carboxylic group, a sulfuric group, a sulfonic group, a phosphoric group, a phosphonic group, a phenolic hydroxyl group, and a mixture thereof.

[0124] The non-polymeric acid having two or more pKa values may be a non-polymeric polyvalent acid.

[0125] The non-polymeric acid having two or more pKa values may be selected from the group consisting of dicarboxylic acids, disulfonic acids, and diphosphoric acids, and a mixture thereof.

[0126] The (c) non-polymeric acid having two or more pKa values or salt(s) thereof may be selected from the group consisting of 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 dicamphor sulfonic acid or salts thereof (Mexoryl SX), Benzophenone-9; phytic acid, and salts thereof; Red 2 (Amaranth), Red 102 (New Coccine), Yellow 5 (Tartrazine), Yellow 6 (Sunset Yellow FCF), Green 3 (Fast Green FCF), Blue 1 (Brilliant Blue FCF), Blue 2 (Indigo Carmine), Red 201 (Lithol Rubine B), Red 202 (Lithol Rubine BCA), Red 204 (Lake Red CBA), Red 206 (Lithol Red CA), Red 207 (Lithol Red BA), Red 208 (Lithol Red SR), Red 219 (Brilliant Lake Red R), Red 220 (Deep Maroon), Red 227 (Fast Acid Magenta), Yellow 203 (Quinoline Yellow WS), Green 201 (Alizanine Cyanine Green F), Green 204 (Pyranine Cone), Green 205 (Light Green SF Yellowish), Blue 203 (Patent Blue CA), Blue 205 (Alfazurine FG), Red 401 (Violamine R), Red 405 (Permanent Re F5R), Red 502 (Ponceau 3R), Red 503 (Ponceau R), Red 504 (Ponceau SX), Green 401 (Naphtol Green B), Green 402 (Guinea Green B), and Black 401 (Naphtol Blue Black); folic acid, ascorbic acid, erythorbic acid, and salts thereof; cystine and salts thereof; EDTA and salts thereof; glycyrrhizin and salts thereof; and a mixture thereof.

[0127] It may be preferable that the (c) non-polymeric acid having two or more pKa values or salt(s) thereof be selected from the group consisting of terephthalylidene dicamphor sulfonic acid and salts thereof (Mexoryl SX), Yellow 6 (Sunset Yellow FCF), ascorbic acid, phytic acid and salts thereof, and a mixture thereof.

[0128] It is preferable that the (c) non-polymeric acid having two or more pKa values or salt(s) thereof be an organic acid or salt(s) thereof, more preferably a hydrophilic or water-soluble organic acid or salt(s) thereof, and even more preferably phytic acid or salts thereof.

[0129] The amount of the (c) non-polymeric acid having two or more pKa values or salt(s) thereof in the composition according to the present invention may be 0.001% by weight or more, preferably 0.002% by weight or more, and more preferably 0.003% by weight or more, relative to the total weight of the composition.

[0130] The amount of the (c) non-polymeric acid having two or more pKa values or salt(s) thereof in the composition according to the present invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less, relative to the total weight of the composition.

[0131] The amount of the (c) non-polymeric acid having two or more pKa values or salt(s) thereof in the composition according to the present invention may be from 0.001% to 15% by weight, preferably from 0.002% to 10% by weight, and more preferably from 0.003% to 5% by weight, relative to the total weight of the composition.

[0132] (Wax)

[0133] The composition according to the present invention comprises (d) at least one wax. Two or more different types of waxes may be used in combination. Thus, a single type of a wax or a combination of different types of waxes may be used.

[0134] The term "wax" is understood, within the meaning of the present invention, to mean a lipophilic compound, which is solid at ambient temperature (25 °C), with a reversible solid / liquid change in state, and which has a melting point of greater than or equal to 30°C.

[0135] The melting point of wax here means a temperature at which the entire wax is melted.

[0136] The (d) wax may have a melting point of 40°C or more, preferably 50°C or more, and more preferably 60°C or more. The (d) wax may have a melting point of 130°C or less, preferably 120°C or less, and more preferably 110°C or less. Thus the (d) wax may have a melting point of from 40°C to 130°C, preferably from 50°C to 120°C, and more preferably from 60°C to 110°C.

[0137] The (d) wax may be crystalline, and therefore, the (d) wax may form crystals at a crystallization temperature. Thus, crystallization of the (d) wax may start at the crystallization temperature. The crystallization temperature may be measured using a differential scanning calorimeter (DSC), for example the calorimeter sold under the name DSC 30 by the company Mettler.

[0138] The (d) wax may be of plant, mineral, animal or synthetic origin.

[0139] The (d) wax may be selected from polar waxes, non-polar waxes and mixtures thereof.

[0140] Polar Wax:

[0141] In one embodiment of the present invention, the (d) wax may be selected from polar waxes.

[0142] Within the meaning of the present invention, the term "polar wax" means a wax for which the solubility parameter 8aat 25°C is anything other than 0 (J / cm3)1 / ’.

[0143] The definition and calculation of the solubility parameters in the Hansen three-dimensional solubility space are described in the article by CM. Hansen: "The three-dimensional solubility parameters", J. Paint Technol., 39, 105 (1967).

[0144] According to this Hansen space:

[0145] 8D characterizes the London dispersion forces derived from the formation of dipoles induced during molecular impacts;

[0146] 8Pcharacterizes the Debye interaction forces between permanent dipoles and also the Keesom interaction forces between induced dipoles and permanent dipoles;

[0147] 8h characterizes the forces of specific interactions (such as acid / base, donor / acceptor, hydrogen bonds, etc.); and

[0148] 8ais determined by the equation: 8a= (8P2+ 8h2)‘A.

[0149] The parameters 8P, 8h, 8D and 8aare expressed in (J / cm3)1 .

[0150] It is preferable that the polar wax have a chemical structure formed essentially from, or even composed of, carbon and hydrogen atoms, and comprising at least one highly electronegative heteroatom such as an oxygen, nitrogen, silicon or phosphorus atom.

[0151] The polar waxes may especially be hydrocarbon, fluoro or silicone waxes. The term "hydrocarbon wax" means a wax formed essentially from, or even composed of, carbon and hydrogen atoms, and optionally oxygen and nitrogen atoms, and that does not contain any silicon or fluorine atoms. It may contain alcohol, ester, ether, carboxylic acid, amine and / or amide groups. The term "fluoro wax" means a wax comprising at least one fluorine atom, especially comprising at least one perfluoro groups. The term "silicone wax" means a wax comprising at least one silicon atom, especially comprising Si-0 groups.

[0152] According to a preferred embodiment, the polar wax is a hydrocarbon wax.

[0153] As a polar hydrocarbon wax, a wax chosen from ester waxes and alcohol waxes is in particular preferred.

[0154] The expression "ester wax" is understood according to the present invention to mean a wax comprising at least one ester functional group. According to the present invention, the term "alcohol wax" means a wax comprising at least one alcohol functional group, i.e., comprising at least one free hydroxyl (OH) group.

[0155] The following may especially be used as ester wax:

[0156] - ester waxes such as those chosen from: i) Waxes of the formula R1COOR2, in which Ri and R2 represent linear, branched or cyclic aliphatic chains, the number of atoms of which varies from 10 to 50, which may contain a heteroatom such as O, N or P, and the melting point of which varies from 25°C to 120°C. In particular, use may be made, as an ester wax, of a C20-C40 alkyl (hydroxystearyloxy)stearate (the alkyl group comprising from 20 to 40 carbon atoms), alone or as a mixture, or a C20-C40 alkyl stearate. Such waxes are especially sold under the names Kester Wax K 82 P®, Hydroxypolyester K 82 P®, Kester Wax K 80 P® or Kester Wax K82H by the company Koster Keunen. Behenyl behenate may also be an example of this type of ester waxes.

[0157] Use may also be made of a glycol and butylene glycol montanate (octacosanoate) such as the wax Licowax KPS Flakes (INCI name: Glycol Montanate) sold by the company Clariant. ii) Bis(l,l,l-trimethylolpropane) tetrastearate, sold under the name Hest 2T- 4S® by the company Heterene. iii) Diester waxes of a dicarboxylic acid of general formula R3-(-OCO-R4-COO-R5), in which R3and R5are identical or different, preferably identical, and represent a C4-C30 alkyl group (alkyl group comprising from 4 to 30 carbon atoms) and R4represents a linear or branched C4-C30 aliphatic group (alkyl group comprising from 4 to 30 carbon atoms) which may or may not contain one or more unsaturated groups. Preferably, the C4-C30 aliphatic group is linear and unsaturated. iv) Mention may also be made of the waxes obtained by catalytic hydrogenation of animal or vegetable oils having linear or branched C8-C32 fatty chains, for example such as hydrogenated jojoba oil, hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, and also the waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol, such as those sold under the names Phytowax Ricin 16L64® and 22L73® by the company Sophim. Such waxes are described in Application FR-A-2 792 190. Mention may be made, as waxes obtained by hydrogenation of olive oil esterified with stearyl alcohol, of those sold under the name Phytowax Olive 18 L 57. v) Mention may also be made of beeswax, synthetic beeswax, polyglycerolated beeswax, carnauba wax, candelilla wax, oxypropylenated lanolin wax, rice bran wax, ouricury wax, esparto grass wax, cork fibre wax, sugar cane wax, Japan wax, sumach wax, montan wax, orange wax, laurel wax and hydrogenated jojoba wax.

[0158] According to a preferred embodiment, the composition according to the present invention comprises a polar wax derived from plants, such as jojoba esters, sunflower seed wax and acacia decurrens flower wax.

[0159] According to another embodiment, the polar wax may be an alcohol wax.

[0160] Alcohol waxes that may be mentioned include, for example, the wax Performacol 550-L Alcohol from New Phase Technologies, stearyl alcohol, behenyl alcohol, and cetyl alcohol.

[0161] The polar wax may be a silicone wax, for instance siliconized beeswax. However, according to a preferred embodiment, the composition according to the present invention is devoid of any silicone wax.

[0162] Non-Polar Wax:

[0163] In another embodiment of the present invention, the (d) wax may be selected from non-polar waxes.

[0164] Within the meaning of the present invention, the term "non-polar” wax means a wax for which the solubility parameter 8aat 25°C as defined above is equal to 0 (J / cm3)1 / ?.

[0165] The non-polar wax may be, in particular, selected from hydrocarbon waxes composed solely of carbon and hydrogen atoms and devoid of heteroatoms, such as N, O, Si and P.

[0166] Thus, as examples of the non-polar wax, mention may be made of hydrocarbon waxes, for instance polyolefin waxes, such as a polyethylene wax and a polypropylene wax, a microcrystalline wax, a paraffin wax, and ozokerite.

[0167] In one embodiment, the non-polar wax may be a polyethylene wax. Polyethylene waxes that may be mentioned include Asensa® SC 211 sold by Honeywell, and Performalene 500-L Polyethylene and Performalene 400 Polyethylene sold by New Phase Technologies.

[0168] The polyethylene wax may be in the form of a powder. As examples of such a powdery wax, mention may be made polyethylene microwaxes such as those sold under the names Micropoly 200®, 220®, 220L® and 250S® by the company Micro Powders.

[0169] In another embodiment, the non-polar wax may be a microcrystalline wax. As microcrystalline waxes that may be used, mention may be made of Multiwax W 445® sold by the company Sonnebom, and Micro wax HW® and Base Wax 30540® sold by the company Paramelt.

[0170] In another embodiment, the non-polar wax may be a paraffin wax. Typically, the paraffin wax is composed of C16-C40 hydrocarbons, preferably linear C16-C40 hydrocarbons, and more preferably linear C20-C40 hydrocarbons. The molecular weight of paraffin wax may be from 300 to 550.

[0171] As ozokerite, mention may be made of that sold under the name Ozokerite Wax Pastilles SP 1021 P.

[0172] It is preferable that the non-polar wax be selected from waxes of synthetic origin. In other words, it is preferable that the non-polar wax be selected from synthetic waxes.

[0173] Examples of the synthetic wax include a synthetic hydrocarbon wax and a modified wax.

[0174] Examples of the synthetic hydrocarbon wax include a polyethylene wax, a polypropylene wax, and a Fischer-Tropsch wax. Examples of the modified wax include a paraffin wax derivative, a montan wax derivative, and a microcrystalline wax derivative.

[0175] It is preferable that the non-polar wax be selected from synthetic hydrocarbon waxes such as a polyethylene wax, a polypropylene wax, and a Fischer-Tropsch wax.

[0176] Examples of the polyethylene wax include an ethylene homopolymer and an ethylene-alpha - olefin copolymer. Alternatively, the wax may be obtained by thermal decomposition of the copolymer. Examples of the alpha-olefin include an alpha-olefin having 3 to 12 carbon atoms such as propylene, 1 -butene, 1 -pentene, 1 -hexene, 4-methyl-l -pentene, and 1 -octene.

[0177] Examples of the polypropylene wax include a propylene homopolymer, an ethylenepropylene copolymer (which is a random or block copolymer), and propylene-alpha-olefin (except for ethylene or propylene) copolymer. Alternatively, the wax may be obtained by thermal decomposition of the copolymer. Examples of the alpha-olefin include 1 -butene, 1- pentene, 1 -hexene, 1 -heptene, 1 -octene, 4-methyl-l -pentene, 1 -decene, 1 -dodecene, 1- tetradecene, 1 -hexadecene, and 1 -octadecene.

[0178] The polyethylene wax and the polypropylene wax can be obtained by a known method using a polymerization catalyst such as a Ziegler catalyst, a Ziegler-Natta catalyst, and a metallocene catalyst. In particular, the polyethylene wax and the polypropylene wax obtained by using a metallocene catalyst as a polymerization catalyst are preferable, having a narrow molecular weight distribution and stable quality, in comparison with the polyethylene wax and the polypropylene wax obtained by using a Ziegler catalyst or a Ziegler-Natta catalyst as a polymerization catalyst.

[0179] The Fischer-Tropsch wax is a synthetic hydrocarbon wax mainly comprising linear hydrocarbons, which is obtained by reacting water gas containing carbon monoxide and hydrogen as main components under normal pressure at 170 to 250°C using a catalyst such as cobalt, nickel, or iron. The Fischer-Tropsch wax is characterized in comprising hydrocarbons containing odd and even numbers of carbon atoms, namely comprising both hydrocarbons containing an odd number of carbon atoms and hydrocarbons containing an even number of carbon atoms.

[0180] As examples of the Fischer-Tropsch wax, mention may be made of Fischer-Tripsch hard waxes such as Sasobit, SasobiM, Sasolwax A2, Sasolwax A28, Sasolwax A859, Sasolwax Adsperse 500, Sasolwax B39, Sasolwax B52, Sasolwax C105, Sasolwax C80, Sasolwax C80M, Sasolwax EnHance, Sasolwax HnHance MX, Sasolwax Hl, Sasolwax H1N6, Sasolwax H8, Saolwax Spray 105, and Sasolwax Spray 30; and Fischer-Tropsch medium waxes such as Sasolwax C, Sasolwax IW2F, Sasolwax IW3F, and Tekniwax 40B, marketed by Sasol Chemicals.

[0181] As the synthetic hydrocarbon wax, it is preferable to use “Synthetic Wax” (INCI name) which is a hydrocarbon wax prepared by the Fischer-Tropsch method or ethylene polymerization.

[0182] As examples of the Synthetic Wax, mention may be made of, for example, Sasolwax 303 and Titanel marketed by Sasol Chemical; Cirewax 40, Cirewax 55, Cirewax 60, Cirewax 80 and Cirewax 90 marketed by Cirebelle Fine Chemicals Pty. Ltd.; Jeenate 2SQ, Jeenate 3SW, Jeenate 4SW, Jeenate 5Sw, and Jeenate 6SW marketed by Jeen International Corp.; Synscrub 100PC, Synscrub 164S, Synscrub 164SF, Synscrub 20PC, Synscrub 35PC, Synscrub 50PC, Synscrub 80PC, Microease 1 IOS, Microease 110XF, Microease 114S and Microease 204 marketed by Micro Powders Inc.; and the like.

[0183] It is preferable that the (d) wax be selected from non-polar waxes.

[0184] It is more preferable that the (d) wax be selected from non-polar hydrocarbon waxes.

[0185] It is even more preferable that the (d) wax be selected from non-polar synthetic hydrocarbon waxes.

[0186] The amount of the (d) wax(es) in the composition according to the present invention may be 1% by weight or more, preferably 1.1% by weight or more, and more preferably 1.2% by weight or more, relative to the total weight of the composition.

[0187] The amount of the (d) wax(es) in the composition according to the present invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less, relative to the total weight of the composition.

[0188] The amount of the (d) wax(es) in the composition according to the present invention may be from 1% to 15% by weight, preferably from 1.1% to 10% by weight, and more preferably from 1.2% to 5% by weight, relative to the total weight of the composition.

[0189] (Water)

[0190] The composition according to the present invention may comprise (e) water.

[0191] The (e) water can constitute the aqueous phases, which can be dispersed or discontinuous phases, in the composition according to the present invention.

[0192] The amount of the (e) water may be 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the composition.

[0193] The amount of the (e) water may be 95% by weight or less, preferably 93% by weight or less, and more preferably 90% by weight or less, relative to the total weight of the composition.

[0194] The amount of the (e) water may be from 20% to 95% by weight, preferably from 30% to 93% by weight, and more preferably from 40% to 90% by weight, relative to the total weight of the composition.

[0195] (Oil)

[0196] The composition according to the present invention may comprise (f) at least one oil. If two or more (f) oils are used, they may be the same or different.

[0197] The (f) oil(s) can constitute a fatty phase, which can be a continuous phase, in the composition according to the present invention.

[0198] Here, “oil” means a fatty compound or substance which is in the form of a liquid or a paste (non-solid) at room temperature (25°C) under atmospheric pressure (760 mmHg). As the oils, those generally used in cosmetics can be used alone or in combination thereof. These oils may be volatile or non-volatile.

[0199] The (f) oil may be a non-polar oil such as a hydrocarbon oil, a silicone oil, or the like; a polar oil such as a plant or animal oil and an ester oil or an ether oil; or a mixture thereof.

[0200] The (f) oil may be selected from the group consisting of oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

[0201] As examples of plant oils, mention may be made of, for example, apricot oil, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil ojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0202] As examples of animal oils, mention may be made of, for example, squalene and squalane.

[0203] As examples of synthetic oils, mention may be made of alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0204] The ester oils are preferably liquid esters of saturated or unsaturated, linear or branched Ci- C26 aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched Ci- C26 aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.

[0205] Preferably, for the esters of monoalcohols, at least one from among the alcohol and the acid from which the esters of the present invention are derived is branched.

[0206] Among the monoesters of monoacids and of monoalcohols, mention may be made of ethyl palmitate, ethyl hexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

[0207] Esters of C4-C22 dicarboxylic or tricarboxylic acids and of C1-C22 alcohols, and esters of monocarboxylic, dicarboxylic or tricarboxylic acids and of non-sugar C4-C26 dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols may also be used.

[0208] Mention may especially be made of: diethyl sebacate; isopropyl lauroyl sarcosinate; diisopropyl sebacate; bis(2-ethylhexyl) sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; bis(2-ethylhexyl) adipate; diisostearyl adipate; bis(2-ethylhexyl) maleate; triisopropyl citrate; triisocetyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate.

[0209] As ester oils, one can use sugar esters and diesters of C6-C30 and preferably C12-C22 fatty acids. It is recalled that the term “sugar” means oxygen-bearing hydrocarbon-based compounds containing several alcohol functions, with or without aldehyde or ketone functions, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides.

[0210] Examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and derivatives thereof, especially alkyl derivatives, such as methyl derivatives, for instance methylglucose.

[0211] The sugar esters of fatty acids may be chosen especially from the group comprising the esters or mixtures of esters of sugars described previously and of linear or branched, saturated or unsaturated C6-C30 and preferably C12-C22 fatty acids. If they are unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.

[0212] The esters according to this variant may also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0213] These esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates, or mixtures thereof such as, especially, oleopalmitate, oleostearate and palmitostearate mixed esters, as well as pentaerythrityl tetraethyl hexanoate.

[0214] More particularly, use is made of monoesters and diesters and especially sucrose, glucose or methylglucose monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearates.

[0215] An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0216] As examples of preferable ester oils, mention may be made of, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2- ethylhexyl octanoate, 2-ethylhexyl caprylate / caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0217] As examples of artificial triglycerides, mention may be made of, for example, capryl caprylyl glycerides, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprate / caprylate) and glyceryl tri(caprate / capry late / linolenate) .

[0218] As examples of silicone oils, mention may be made of, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.

[0219] Preferably, silicone oil is chosen from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxanes (PDMS) and liquid polyorganosiloxanes comprising at least one aryl group.

[0220] These silicone oils may also be organomodified. The organomodified silicones that can be used according to the present invention are silicone oils as defined above and comprise in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

[0221] Organopolysiloxanes are defined in greater detail in Walter Noll’s Chemistry and Technology of Silicones (1968), Academic Press. They may be volatile or non-volatile.

[0222] When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60°C and 260°C, and even more particularly from:

[0223] (i) Cyclic polydialkylsiloxanes comprising from 3 to 7 and preferably 4 to 5 silicon atoms. These are, for example, octamethylcyclotetrasiloxane sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia, decamethylcyclopentasiloxane sold under the name Volatile Silicone® 7158 by Union Carbide, Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Mention may also be made of cyclocopolymers of the type such as dimethylsiloxane / methylalkylsiloxane, such as Silicone Volatile® FZ 3109 sold by the company Union Carbide, of formula: '

[0224] Mention may also be made of mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50 / 50) and the mixture of octamethylcyclotetrasiloxane and oxy-l,l’-bis(2,2,2’,2’,3,3’-hexatrimethylsilyloxy)neopentane; and

[0225] (ii) Linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms and having a viscosity of less than or equal to 5x 10'6m2 / s at 25°C. An example is decamethyltetrasiloxane sold in particular under the name SH 200 by the company Toray Silicone. Silicones belonging to this category are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25 °C according to ASTM standard 445 Appendix C.

[0226] Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from polydialkylsiloxanes, among which mention may be made mainly of polydimethylsiloxanes containing trimethylsilyl end groups.

[0227] Among these polydialkylsiloxanes, mention may be made, in a non-limiting manner, of the following commercial products: the Silbione® oils of the 47 and 70 047 series or the Mirasil® oils sold by Rhodia, for instance the oil 70 047 V 500000; the oils of the Mirasil® series sold by the company Rhodia; the oils of the 200 series from the company Dow Coming, such as DC200 with a viscosity of 60,000 mm2 / s; and the Viscasil® oils from General Electric and certain oils of the SF series (SF 96, SF 18) from General Electric. Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups known under the name dimethiconol (CTFA), such as the oils of the 48 series from the company Rhodia.

[0228] Among the silicones containing aryl groups, mention may be made of polydiarylsiloxanes, especially polydiphenylsiloxanes and polyalkylarylsiloxanes such as phenyl silicone oil.

[0229] The phenyl silicone oil may be chosen from the phenyl silicones of the following formula: in which

[0230] Ri to Rio, independently of each other, are saturated or unsaturated, linear, cyclic or branched C1-C30 hydrocarbon-based radicals, preferably C1-C12 hydrocarbon-based radicals, and more preferably C1-C6 hydrocarbon-based radicals, in particular methyl, ethyl, propyl or butyl radicals, and m, n, p and q are, independently of each other, integers 0 to 900 inclusive, preferably 0 to 500 inclusive, and more preferably 0 to 100 inclusive, with the proviso that the sum n+m+q is not 0.

[0231] Examples that may be mentioned include the products sold under the following names: the Silbione® oils of the 70 641 series from Rhodia; the oils of the Rhodorsil® 70 633 and 763 series from Rhodia; the oil Dow Corning 556 Cosmetic Grade Fluid from Dow Corning; the silicones of the PK series from Bayer, such as the product PK20; certain oils of the SF series from General Electric, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0232] As the phenyl silicone oil, phenyl trimethicone (Ri to Rio are methyl; p, q, and n = 0; m=l in the above formula) is preferable.

[0233] The organomodified liquid silicones may especially contain polyethyleneoxy and / or polypropyleneoxy groups. Mention may thus be made of the silicone KF-6017 proposed by Shin-Etsu, and the oils Silwet® L722 and L77 from the company Union Carbide.

[0234] Hydrocarbon oils may be chosen from: linear or branched, optionally cyclic, Ce-Cie lower alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane, and isoparaffins, for instance isohexadecane, isododecane and isodecane; and linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffins, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes such as Parleam®, and squalane.

[0235] As preferable examples of hydrocarbon oils, mention may be made of, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosan, and decene / butene copolymer; and mixtures thereof.

[0236] The term “fatty” in the fatty alcohol means the inclusion of a relatively large number of carbon atoms. Thus, alcohols which have 6 or more, preferably 8 or more, and more preferably 10 or more carbon atoms are encompassed within the scope of fatty alcohols. The fatty alcohol may be saturated or unsaturated. The fatty alcohol may be linear or branched.

[0237] The fatty alcohol may have the structure R-OH wherein R is chosen from saturated and unsaturated, linear and branched radicals containing from 6 to 30 carbon atoms, preferably from 8 to 28 carbon atoms, and more preferably from 10 to 26 carbon atoms. In at least one embodiment, R may be chosen from C12-C24 alkyl and C12-C24 alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

[0238] As examples of the fatty alcohol, mention may be made of lauryl alcohol, hexyldecanol, oleyl alcohol, isostearyl alcohol, octyldodecanol, decyltetradecanol, and a mixture thereof.

[0239] It may be preferable that the fatty alcohol be selected from the group consisting of isostearyl alcohol, oleyl alcohol, and a mixture thereof.

[0240] It may be preferable that the (f) oil be selected from synthetic ester oils, hydrocarbon oils, silicone oils, and mixtures thereof.

[0241] The amount of the (f) oil(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0242] The amount of the (f) oil(s) in the composition according to the present invention may be 40% by weight or less, preferably 35% by weight or less, and more preferably 30% by weight or less, relative to the total weight of the composition.

[0243] The amount of the (f) oil(s) in the composition according to the present invention may be from 0.01% to 40% by weight, preferably from 0.05% to 35% by weight, and more preferably from 0.1% to 30% by weight, relative to the total weight of the composition.

[0244] (pH)

[0245] The pH of the composition according to the present invention, if measurable, may be from 3 to 9, preferably from 3.3 to 8.5, and more preferably from 3.5 to 8.

[0246] At a pH of from 3 to 9, the (a) cationic polymer, the (b) anionic polymer and the (c) non- polymeric acid having two or more pKa values or salt(s) thereof can form a stable complex.

[0247] The pH of the composition according to the present invention, if measurable, may be adjusted by adding at least one alkaline agent and / or at least one acid, other than the (b) non-polymeric acid having two or more pKa values or a salt thereof. The pH of the composition according to the present invention may also be adjusted by adding at least one buffering agent.

[0248] (Embodiments)

[0249] According to a preferred embodiment, the composition according to the present invention comprises:

[0250] (a) at least one cationic polymer selected from polylysines, chitosans, and mixtures thereof;

[0251] (b) at least one anionic polymer selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof;

[0252] (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; and

[0253] (d) at least one wax, wherein the amount of the (a) cationic polymer is from 0.001% to 15% by weight, relative to the total weight of the composition, the amount of the (b) anionic polymer is from 0.01% to 15% by weight, relative to the total weight of the composition, the amount of the (c) non-polymeric acid having two or more pKa values or salt(s) thereof is from 0.001% to 15% by weight, relative to the total weight of the composition, and the amount of the (d) wax is from 1% to 50% by weight, relative to the total weight of the composition.

[0254] According to a more preferred embodiment, the composition according to the present invention comprises:

[0255] (a’) at least one cationic polymer selected from polylysines;

[0256] (b’) at least one anionic polymer selected from hyaluronic acid and salts thereof;

[0257] (c’) at least one non-polymeric acid having two or more pKa values selected from organic acids, or salt(s) thereof; and

[0258] (d’) at least one wax having a melting point of 60°C or more, wherein the amount of the (a’) cationic polymer is from 0.002% to 10% by weight, relative to the total weight of the composition, the amount of the (b’) anionic polymer is from 0.05% to 10% by weight, relative to the total weight of the composition, the amount of the (c’) non-polymeric acid having two or more pKa values or salt(s) thereof is from 0.002% to 10% by weight, relative to the total weight of the composition, and the amount of the (d’) wax is from 1.1% to 40% by weight, relative to the total weight of the composition.

[0259] According to an even more preferred embodiment, the composition according to the present invention comprises:

[0260] (a’) at least one cationic polymer selected from poly lysines;

[0261] (b”) at least one anionic polymer selected from hyaluronic acid and salts thereof;

[0262] (c’ ’) at least one non-polymeric acid having two or more pKa values selected from hydrophilic or water-soluble organic acids, or salt(s) thereof; and

[0263] (d”) at least one synthetic wax having a melting point of 60°C or more, wherein the amount of the (a’) cationic polymer is from 0.003% to 5% by weight, relative to the total weight of the composition, the amount of the (b”) anionic polymer is from 0.1% to 5% by weight, relative to the total weight of the composition, the amount of the (c”) non-polymeric acid having two or more pKa values or salt(s) thereof is from 0.003% to 5% by weight, relative to the total weight of the composition, and the amount of the (d”) wax is from 1.2% to 30% by weight, relative to the total weight of the composition.

[0264] (Additional Optional Ingredient)

[0265] The composition according to the present invention may comprise, in addition to the aforementioned ingredients, optional ingredient(s) typically employed in cosmetics, specifically, polyols such as glycerin; organic or inorganic UV filters; surfactants or emulsifiers, hydrophilic or lipophilic thickeners; coloring agents; amphoteric polymers; nonionic polymers; silicones and silicone derivatives other than the (f) oil; natural extracts derived from animals or vegetables; and the like, within a range which does not impair the effects of the present invention.

[0266] The composition according to the present invention may comprise the above optional additive(s) in an amount of from 0.01% to 30% by weight, preferably from 0.05% to 20% by weight, and more preferably from 0.1% to 10% by weight, relative to the total weight of the composition.

[0267] (Preparation)

[0268] The composition according to the present invention can be prepared by mixing the essential ingredient(s) as explained above, and optional ingredient(s), if necessary, as explained above.

[0269] The method and means to mix the above essential and optional ingredients are not limited. Any conventional method and means can be used to mix the above essential and optional ingredients to prepare the composition according to the present invention.

[0270] The composition according to the present invention can be prepared by simple or easy mixing with a conventional mixing means such as a stirrer and a homogenizer. Also, heating may not be necessary. Therefore, the process for preparing the composition according to the present invention may be environmentally friendly.

[0271] (Cosmetic Application)

[0272] 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 for application onto a keratin material.

[0273] Keratin material here means a material containing keratin as a main constituent element, and examples thereof include the skin, scalp, nails, lips, hair, and the like. Thus, it is preferable that the cosmetic composition according to the present invention be used as a cosmetic composition for a keratin material, such as skin. Thus, the cosmetic composition according to the present invention may be a skin cosmetic composition, preferably a skin care composition or a skin makeup composition, and more preferably a skin care composition.

[0274] The composition according to the present invention is suitable as a skin care cosmetic composition, because the composition comprises the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures thereof. For example, the composition according to the present invention can be used for moisturizing the skin.

[0275] It is preferable that the composition according to the present invention be a leave-on type. In other words, it is preferable that the composition according to the present invention be used, on a keratin material such as skin, without being rinsing off. Thus, it is preferable that the composition according to the present invention is not a cleansing composition.

[0276] (Form)

[0277] The composition according to the present invention may be in various forms. For example, the composition according to the present invention can be in the form of a solution, an emulsion, a dispersion and the like.

[0278] The composition according to the present invention may be in the form of a paste, a cream or a balm.

[0279] It may be preferable for the composition according to the present invention to be in the form of a solid. The term “solid” here means a state which is not flowable under atmospheric pressure (101325 Pa) and at room temperature (25°C).

[0280] The composition according to the present invention may be in the form of a stick.

[0281] The composition according to the present invention may be of the O / W type or the W / O type, if the composition comprises the (e) water and the (f) oil(s).

[0282] The composition according to the present invention of the O / W type comprises a plurality of fatty phases dispersed in a continuous aqueous phase. The dispersed fatty phases can be in the form of oil droplets in the aqueous phase. It is preferable that the composition according to the present invention of the O / W type be in the form of an O / W emulsion, and more preferably an O / W gel emulsion.

[0283] The O / W architecture or structure, which consists of fatty phases dispersed in an aqueous phase, has an external aqueous phase, and therefore, the composition according to the present invention with the O / W architecture or structure can provide a pleasant feeling during use because of the feeling of immediate freshness that the aqueous phase can provide.

[0284] The composition according to the present invention of the W / O type comprises a plurality of aqueous phases dispersed in a continuous fatty phase. The dispersed aqueous phases can be in the form of aqueous droplets in the fatty phase. It is preferable that the composition according to the present invention of the W / O type be in the form of a W / O emulsion, and more preferably a W / O gel emulsion.

[0285] The composition according to the present invention in the form of an O / W emulsion or a W / O emulsion may comprise at least one emulsifier such as a surfactant.

[0286] The amount of the fatty phase(s) in the composition according to the present invention depends on the type of the composition, and may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition, and / or 40% by weight or less, preferably 35% by weight or less, and more preferably 30% by weight or less, relative to the total weight of the composition.

[0287] Thus, the amount of the fatty phase(s) in the composition according to the present invention may be from 0.01% to 40% by weight, preferably from 0.05% to 35% by weight, and more preferably from 0.1% to 30% by weight, relative to the total weight of the composition.

[0288] The amount of the aqueous phase(s) in the composition according to the present invention depends on the type of the composition, and may be 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the composition and / or 95% by weight or less, preferably 93% by weight or less, and more preferably 90% by weight or less, relative to the total weight of the composition.

[0289] Thus, the amount of the aqueous phase(s) in the composition according to the present invention may be from 20% to 95% by weight, preferably from 30% to 93% by weight, and more preferably from 40% to 90% by weight, relative to the total weight of the composition.

[0290] [Cosmetic Process and Use]

[0291] The present invention also relates to a cosmetic process for a keratin material such as skin, comprising: applying to the keratin material the composition according to the present invention.

[0292] The cosmetic process here means a non-therapeutic cosmetic method for caring for and / or making up the surface of a keratin material such as skin.

[0293] The present invention may also relate to a use of

[0294] (d) at least one wax in a composition, comprising:

[0295] (a) at least one cationic polymer;

[0296] (b) at least one anionic polymer; and

[0297] (c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof, wherein the (a) cationic polymer is selected from polylysines, chitosans, and mixtures thereof, the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixtures threof, and the amount of the (d) wax is 1% by weight or more, relative to the total weight of the composition, in order to reduce the transfer of the composition to an article or an object contacting the composition.

[0298] The composition may also include (e) water and / or (f) at least one oil.

[0299] The above explanations regarding the (a) cationic polymer, the (b) anionic polymer, the (c) non-polymeric acid having two or more pKa values or salt(s) thereof, and the (d) wax, as well as optional ingredients such as the (e) water and the (f) oil, for the composition according to the present invention can apply to those in the above use according to the present invention.

[0300] EXAMPLES

[0301] The present invention will be described in a more detailed manner by way of examples. However, they should not be construed as limiting the scope of the present invention.

[0302] Example 1 and Comparative Example 1

[0303] [Preparations]

[0304] Each of the compositions according to Example 1 and Comparative Example 1 was prepared by mixing the ingredients shown in Table 1. The numerical values for the amounts of the ingredients in Table 1 are all based on “% by weight” as active materials.

[0305] Table 1

[0306] * 1 : Sold by Sasol Chemical under the commercial name of Sasolwax 303 *2: Sold by Bloomage Biotechnology Co., Ltd. under the commercial name of Hybloom™ Sodium Hyaluronate (HA-T)

[0307] *3: Sold by Bloomage Biotechnology Co., Ltd. under the commercial name of Hybloom™ Low Molecular Weight Sodium Hyaluronate (HA-TLM)

[0308] [Evaluation]

[0309] (Anti-Mask Transfer)

[0310] 100 mg of the composition according to Example 1 was applied on the half of an artificial skin plate (Bioskin from Beaulax). A blue dye had been added to the composition according to Example 1 such that the concentration of the blue dye in the composition according to Example 1 was 0.01% by weight, relative to the total weight of the composition.

[0311] 100 mg of the composition according to Comparative Example 1 was applied on the other half of the artificial skin plate (Bioskin from Beaulax) as a control. A blue dye had been added to the composition according to Comparative Example 1 such that the concentration of the blue dye in the composition according to Comparative Example 1 was 0.01% by weight, relative to the total weight of the composition.

[0312] The compositions on the artificial skin plate were dried completely at room temperature.

[0313] A non-woven mask was placed on the compositions on the artificial skin. A glass plate was placed on the non-woven mask to press the non-woven mask for 10 seconds. Then, the glass plate was removed from the non-woven mask. Then, the level of the transfer of each composition to the non-woven mask was visually checked, and the difference in the transfer was evaluated in accordance with the following criteria.

[0314] A: Complete Difference (No transfer was observed for Example 1, while clear and substantial transfer was observed for Comparative Example 1.)

[0315] B: Clear Difference (Transfer was observed for Example 1 and Comparative Example 1. However, the level of the transfer was clearly different, such that a slight transfer was observed for Example 1 , while significantly more transfer was observed for Comparative Example 1.)

[0316] C: Slight Difference (Transfer was observed for Example 1 and Comparative Example 1. However, the level of the transfer was different such that a noticeable transfer was observed for Example 1, while substantially more transfer was observed for Comparative Example 1.)

[0317] D: No Difference (Equivalent levels of transfer were observed for Example 1 and Comparative Example 1.)

[0318] The above process was repeated three times. The average of the results of the above evaluation is shown in Table 1.

[0319] (Summary)

[0320] As is clear from Table 1, the composition according to Example 1 showed good anti-mask transfer effects. In other words, the composition according to Example 1 did not transfer from the artificial skin to the non-woven mask, while the composition according to Comparative Example 1 caused a clear and substantial transfer from the artificial skin to the non-woven mask. This difference can be attributed to the presence of synthetic wax in the composition according to Example 1.

Claims

CLAIMS1 A composition, preferably a cosmetic composition, and more preferably a cosmetic composition for a keratin material, such as skin, comprising;(a) at least one cationic polymer;(b) at least one anionic polymer;(c) at least one non-polymeric acid having two or more pKa values or salt(s) thereof; and(d) at least one wax, wherein the (a) cationic polymer is selected from polylysines, chitosans, and mixtures thereof, the (b) anionic polymer is selected from hyaluronic acid, derivatives thereof, salts thereof, and mixture thereof, and the amount of the (d) wax is 1% by weight or more, relative to the total weight of the composition.

2. The composition according to Claim 1, wherein the (a) cationic polymer is selected from polylysines.

3. The composition according to Claim 1 or 2, wherein the amount of the (a) cationic polymer(s) in the composition is from 0.001% to 15% by weight, preferably from 0.002% to 10% by weight, and more preferably from 0.003% 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 polymer is selected from the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, acetylated hyaluronic acid, hyaluronic acid crosspolymer, a salt thereof, and a mixture thereof.

5. The composition according to any one of Claims 1 to 4, wherein the (b) anionic polymer is selected from the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, a salt thereof, and a mixture thereof, preferably the group consisting of hyaluronic acid, hydrolyzed hyaluronic acid, an alkaline metal salt thereof, and a mixture thereof, and more preferably the group consisting of hyaluronic acid, sodium hyaluronate, hydrolyzed hyaluronic acid, sodium hydrolyzed hyaluronic acid, and a mixture thereof.

6. The composition according to any one of Claims 1 to 5, wherein the composition comprises, as the (b) anionic polymers, at least two hyaluronic acids or salts thereof with different molecular weights, preferably a first hyaluronic acid or a salt thereof with a molecular weight of 100 kDa or less and a second hyaluronic acid or a salt thereof with a molecular weight of 500 kDa or more, and more preferably a first hyaluronic acid or salt thereof with a molecular weight of 50 kDa or less and a second hyaluronic acid or a salt thereof with a molecular weight of 1 ,000 kDa or more.

7. The composition according to any one of Claims 1 to 6, wherein the amount of the (b) anionic polymer(s) in the composition is from 0.01% to 15% by weight, preferably from 0.05% to 10% by weight, and more preferably from 0.1% to 5% by weight, relative to the total weight of the composition.

8. The composition according to any one of Claims 1 to 7, wherein the (c) non- polymeric acid having two or more pKa values or salt(s) thereof is an organic acid or salt(s) thereof, preferably a hydrophilic or water-soluble organic acid or salt(s) thereof, and more preferably phytic acid or salts thereof.

9. The composition according to any one of Claims 1 to 8, wherein the amount of the(c) non-polymeric acid(s) having two or more pKa values or salt(s) thereof in the composition is from 0.001% to 15% by weight, preferably from 0.002% to 10% by weight, and more preferably from 0.003% to 5% by weight, relative to the total weight of the composition.

10. The composition according to any one of Claims 1 to 9, wherein the (d) wax has a melting point of 40°C or more, preferably 50°C or more, and more preferably 60°C or more.

11. The composition according to any one of Claims 1 to 10, wherein the (d) wax is selected from synthetic waxes.

12. The composition according to any one of Claims 1 to 11, wherein the (d) wax is selected from Fischer-Tropsch waxes.

13. The composition according to any one of Claims 1 to 12, wherein the amount of the(d) wax(es) in the composition is from 1% to 50% by weight, preferably from 1.1% to 40% by wright, and more preferably from 1.2% to 30% by weight, relative to the total weight of the composition.

14. The composition according to any one of Claims 1 to 14, wherein the composition further comprises (e) water.

15. A cosmetic process for a keratin material such as skin, comprising applying to the keratin material the composition according to any one of Claims 1 to 14.

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