Water-based gel, its cosmetic applications, and a method for reducing stickiness during use.

Abstract

This invention provides an oil-free aqueous gel that maintains a homogeneous appearance after storage at 20°C and 45°C for three months, does not leave a sticky residue after application to the skin, and avoids interference with the upper layers of the epidermis, as well as its use as a topical cosmetic composition, and a novel method for reducing the stickiness of thickened aqueous gels that optionally contain many salts. [Solution] A cross-linked anionic polymer electrolyte, a mixture of alkanols; a composition (C) of alkyl polyglycoside; a mixture (M) of another alkanol mixture and composition (C); one or more cosmetic active ingredients; and an aqueous gel containing water in an amount necessary to make it 100% by mass.

Description

[Technical Field]

[0001] This invention relates in general to the field of cosmetics, and more specifically to the field of topical cosmetic formulations.

[0002] More specifically, this invention relates to improving the sensory properties of aqueous gels. Therefore, the subject matter of this invention is a novel aqueous gel containing a large amount of salt as needed, its use as a topical cosmetic composition, and a novel method for reducing the stickiness of a thickened aqueous gel containing a large amount of salt as needed. [Background technology]

[0003] Serums are now widely used in cosmetic skin treatments. The term "serum" refers to an aqueous solution that is intended to be rapidly absorbed into the upper layers of the epidermis and often contains a high concentration of active ingredients. They are typically used in addition to various skincare formulations to enhance their effects.

[0004] Such a procedure includes a first step of cleansing the skin, a second step of applying a serum to the cleansed skin, and a final step of applying the desired cosmetic care formulation. This method is particularly suitable when the user notices that the effectiveness of the care formulation has decreased due to external factors such as climate or environment, or due to a sudden change in the condition of the skin, such as dryness.

[0005] Beauty serums contain substances with various properties such as moisturizing, whitening, cleansing, anti-aging, anti-wrinkle, vitalizing, shadow concealing, or anti-sebum effects.

[0006] Cosmetic serums are typically aqueous gels in which the active ingredients are suspended or solubilized so that they can be applied directly to the skin. In this way, the possibility of interference with other components on the skin, such as oils, is overcome.

[0007] For a serum to be quickly absorbed into the stratum corneum, it needs to have a non-greasy texture and sufficient fluidity to spread quickly across the skin's surface; it must also be gel-like enough that it does not run off during application.

[0008] Synthetic polymers and naturally derived polymers are well-known thickeners for aqueous layers in cosmetics, enabling the production of topical aqueous gels in the fields of cosmetics and pharmaceuticals.

[0009] The synthetic thickening polymers currently used in this field exist as water-in-oil emulsions of polymers produced by reverse-phase emulsion radical polymerization using surfactants, and are available in powder or liquid form, and are generally known as reverse-phase latex. The most well-known powdered synthetic thickening polymers include those based on acrylic acid or its esters, such as those marketed under the names Carboball® or Pemlen®. These are described in particular in U.S. Patent Nos. 5,373,044 and 2,798,053 and European Patent Application Publication No. 301,532. Polymers based on 2-acrylamido-2-methylpropanesulfonic acid and its salts, such as those marketed under the name Aristoflex®, are also noteworthy. These are described in particular in European Patent Nos. 816,403, 1116,733 and 1069,142. These powders are typically obtained by the precipitation polymerization of monomers in organic solvents of the type benzene, ethyl acetate, cyclohexane, or tert-butanol; therefore, this method requires numerous sequential steps in the purification of the final product to remove trace amounts of residual solvent.

[0010] The most well-known reverse-phase latexes are those marketed under the names Sepigel®, Simulgel®, Sepiplus®, and Sepilife®. These thickeners are obtained by reverse-phase emulsion radical polymerization. They are particularly easy to handle at room temperature and disperse very quickly in water. Furthermore, they exhibit very high thickening performance. However, because they contain at least one type of oil, they may not be suitable for producing aqueous gels where there is no possibility of interaction between the surfactant and the skin.

[0011] Some synthetic thickeners offer thickening performance equivalent to or better than reverse-phase latex, while being more versatile, especially because they do not contain an oil phase that could potentially form an aqueous gel. These are powders, but their dissolution time is comparable to liquid products, making them easy to use. These are described in European Patent Application Publication No. 1496081. They are obtained by standard polymerization techniques such as dispersed-phase radical polymerization, reverse suspension radical polymerization, and complex reverse emulsion or reverse microemulsion radical polymerization, and then separated by various techniques including precipitation in an intermediate solvent, optional washing after precipitation in the intermediate solvent, drying by spraying or azeotropic dehydration, and washing with a suitably selected solvent as needed. Therefore, these synthetic thickeners combine the advantages of standard powdered synthetic thickeners (oil-free, formation of pale aqueous gels) with the advantages of reverse-phase latex synthetic thickeners (pre-neutralization, high dissolution rate, remarkable thickening power and stabilizing properties).

[0012] However, the stability of gels obtained using these synthetic thickeners is unsatisfactory when the composition is rich in electrolytes, such as in beauty serums containing electrolyte-rich plant extracts or inorganic salts.

[0013] A monomer having a free strong acid functional group or a strong acid functional group in the form of a salt, and the formula: CH2=C(CH3)-C(=O)-O-(CH2-CH2-O-) n Linear, branched, or crosslinked ternary polymers of at least one monomer represented by -R2 (wherein R2 is a linear or branched alkyl group having 8 to 20 carbon atoms, and n is a number between 1 and 30) are described in International Publication No. 2011 / 030044.

[0014] However, with aqueous gels manufactured using such synthetic ternary thickening polymers in the presence of electrolytes, consumers experience a sticky feeling after application to the skin. This feeling is unpleasant, and time must be allowed before applying finishing care products. Specifically, since serums are generally applied before care creams, the skin should not feel sticky when applying serums.

[0015] International Publication No. 2018 / 024962 describes a method for producing an aqueous gel comprising a crosslinked anionic polymer electrolyte represented by formula (A), a salt, an electrolyte, water, and a sorbitan ester (e.g., ethoxylated sorbitan oleate), which exhibits low turbidity and high stability, particularly when stored at room temperature and 45°C. However, this aqueous gel is sticky on the skin and remains unsatisfactory, requiring further improvement.

[0016] Another possible solution is to add silicone oil to the aqueous gel; however, silicone oil is not used in the manufacture of cosmetic formulations because it is not sufficiently biodegradable.

[0017] Another solution, inspired by the technical instruction in International Publication No. 2018 / 109353, involves combining biodegradable alkanes with aqueous gels. However, while their contributions are relevant in terms of oil-in-water emulsions, such alkanes impart undesirable stickiness and greasiness to the aqueous gel. [Modes for carrying out the invention]

[0018] Therefore, it was considered necessary to develop an oil-free aqueous gel that would maintain a uniform appearance after storage at 20°C and 45°C for three months, would not leave a sticky residue after application to the skin, and would avoid interference with the upper layers of the epidermis.

[0019] Therefore, in the first aspect, this invention, with respect to its total mass, - Per 100 mol%, • 5.0 mol% to 95.0 mol% of monomer units derived from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid, in the form of partially or completely alkali salts or ammonium salts, represented by formula (I): (CH2=CH-C(=O)-NH)-C(CH3)2-S(=O)2-OH • Monomer units derived from monomers represented by formula (II): CH2=CH-C(=O)-N(R4)2 (wherein R4 is a linear or branched alkyl group having 1 to 4 carbon atoms) in amounts of 4.9 mol% to 90.0 mol%, and • Formula (III) for 0.1 mol% to 5.0 mol%: CH2=C(CH3)-C(=O)-O-(CH2-CH2-O-) n A monomer unit derived from a monomer represented by -R5 (wherein R5 is a linear or branched alkyl group having 8 to 20 carbon atoms, and n is a number between 1 and 20), A crosslinked anionic polymer electrolyte (AP) containing the following is included in a concentration of 0.5% to 5.0% by mass. - Alkanols represented by formula (IV): R1-OH (wherein R1 is a linear or branched alkyl group having 7 to 22 carbon atoms), or mixtures of alkanols represented by formula (IV); or , • Equation (V): R1-O-(G) x -H(wherein G is a glucose residue) or xylose residues either A composition (C) of an alkyl polyglycoside represented by formula: R1-O-(G)1-H, where x is a decimal between 1.05 and 2.05, wherein composition (C) consists of a mixture of 1 mol% of a compound represented by formula: R1-O-(G)1-H, 2 mol% of a compound represented by formula: R1-O-(G)2-H, 3 mol% of a compound represented by formula: R1-O-(G)3-H, 4 mol% of a compound represented by formula: R1-O-(G)4-H, and 5 mol% of a compound represented by formula: R1-O-(G)5-H per 100 mol%, where a1% + a2% + a3% + a4% + a5% is 100 mol%, and a1% + 2a2% + 3a3% + 4a4% + 5a5% is 100x; or , • A mixture (M) of the alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) and composition (C); either , 0.5% by mass to 9.5% by mass, - One or more cosmetic active ingredients selected from the group consisting of retinol, vitamin C, niacinamide (vitamin B3), undecylenoyl phenylalanine, glycolic acid, azelaic acid, hyaluronic acid, a mixture of xylitol, polyglucoside, and 1,4-anhydroxylitol, and urea, in an amount of 0.0% to 3.0% by mass, and - The amount of water needed to make it 100% by mass, It is characterized by containing, The mass of the molecule is an alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV). or The mass of the composition (C) or The mass of the mixture (M) either , the mass ratio (R) of the aqueous gel with the mass of the cross-linked anionic polymer electrolyte (AP) as the denominator. M ) is characterized by being between 1.0 and 10.0, Regarding aqueous gels.

[0020] In this invention, the term "crosslinked anionic polymer electrolyte (AP)" means a nonlinear crosslinked anionic polymer electrolyte in the form of a three-dimensional network that swells without dissolving in water, leading to the formation of a chemical gel. Similarly, the crosslinking agent used in the polymerization reaction in which the crosslinked anionic polymer electrolyte (AP) is induced is a diethylene or polyethylene compound, more specifically selected from ethylene glycol dimethacrylate, tetraallyloxyethane, ethylene glycol diacrylate, diallylurea, triallylamine, trimethylolpropane triacrylate methylenebis(acrylamide), or a mixture of these compounds. In this reaction, the crosslinking agent is used in a molar ratio of 0.005 mol% to 1.000 mol%, more specifically 0.010 mol% to 0.500 mol%, and most specifically 0.010 mol% to 0.250 mol% relative to the monomer used. Depending on the salt concentration of the aqueous medium constituting the topical cosmetic serum, the topical cosmetic serum typically contains 0.5% to 5.0% by mass of the anionic polymer electrolyte (AP) relative to its total mass.

[0021] In the first embodiment, the aqueous gel is the mass ratio (R M ) is characterized by being between 1.5 and 5.0.

[0022] In another embodiment, the aqueous gel is characterized in that the crosslinked anionic polymer electrolyte (AP) contains, per 100 mol%, monomer units derived from an acid represented by formula (III) in the form of a partially ammonium salt, per 100 mol%, per 100 mol%, per 100 mol%, per 15. An example of such a crosslinked anionic polymer electrolyte (AP) is Sepimax Zen®, a trimethylolpropane triacrylate crosslinked ternary polymer sold by SEPPIC, which contains, per 100 mol%, monomer units derived from ammonium 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonate, 19.2 mol%, monomer units derived from N,N-dimethylacrylamide, and 3.4 mol%, monomer units derived from tetraethoxylated lauryl methacrylate.

[0023] In another embodiment, the aqueous gel is characterized in that at least one water-soluble salt selected from the group consisting of alkali metal salts, alkaline earth metal salts, and transition metal salts is dissolved in the water in which the aqueous gel is prepared, and the total concentration of the at least one water-soluble salt in the water is greater than 0.00 mol / L and 1.00 mol / L or less. More specifically, examples of water-soluble salts present in the aqueous gel are selected from the group consisting of sodium chloride, calcium chloride, magnesium chloride, ammonium chloride, sodium sulfate, calcium sulfate, magnesium sulfate, zinc sulfate, ammonium sulfate, sodium borate, sodium glycolate, sodium citrate, sodium salicylate, sodium lactate, sodium gluconate, zinc gluconate, manganese gluconate, copper gluconate, sodium aspartate, and magnesium aspartate.

[0024] In another aspect of this invention, in the above aqueous gel, R1 in the above formula (IV) and formula (V) is of the formula: CH3-(CH2) p -CH(CH3-(CH2) (p-2) )-CH2- (where p is an integer of 3 or more and 9 or less) and is a branched alkyl group R 1A . In this aspect, the alkanol represented by the above formula (IV) is preferably 2-octyldodecan-1-ol represented by the formula (IV A ): CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-OH, and the composition (C) is preferably of the formula (V A ): CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A ) x -H (where G A is a xylosyl group or an α,β-D-xylopyranosyl group, and x is a decimal of 1.05 to 2.05, more specifically 1.10 to 2.00, and even more specifically 1.20 to 1.80) and is a composition (C A ) of an alkyl polyxyloside, and the composition (C A ) contains, per 100 mol%, a1 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )1-H, a2 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )2-H, a3 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )3-H, a4 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )4-H, and a5 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )5-H, and a1% + a2% + a3% + a4% + a5% is 100 mol%, and a1% + 2a2% + 3a3% + 4a4% + 5a5% is 100x.

[0025] In this favorable aspect, the subject matter of this invention is, most specifically, the composition (C) with respect to its total mass. A ) is 10.0% by mass to 50.0% by mass, and the above formula (IV A A mixture (M) consisting of 50.0% to 90.0% by mass of alkanols represented by ). A ) and the molecule of the mixture (M A The mass of ) and the mass ratio (R) where the denominator is the mass of the cross-linked anionic polymer electrolyte (AP). MA The aqueous gel contains ) in a proportion of 1.0 to 10.0, more specifically 1.5 to 5.0. Such mixture (M A An example of this is a composition sold by SEPPIC under the name Fluidanov® 20X, which contains 75.0% by mass of 2-octyldodecanol and 25.0% by mass of (2-octyldodecyl) polyxyloside obtained by the reaction of xylose and 2-octyldodecanol in an acidic medium, based on its total mass.

[0026] In another respect, the aqueous gel described above is a linear alkyl group R in formulas (IV) and (V) having 12 to 22 carbon atoms, most specifically 7 to 22 carbon atoms. 1B It is characterized by being such.

[0027] In this respect, the aqueous gel is preferably an alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV). B ):R 1B -OH(in the formula, R 1B A mixture of alkanols represented by formula (V is a linear alkyl group having 20 to 22 carbon atoms), wherein composition (C) is preferably a mixture of alkanols represented by formula (V B ):R 1B -O-(G B ) x -H(wherein, R 1B As stated above, G BA composition of alkyl polyglucoside (C) is represented by a glucosyl group or an α,β-D-glucopyranosyl group, where x is a decimal number between 1.05 and 2.05, more specifically between 1.10 and 2.00, and even more specifically between 1.20 and 1.80. B ) and the composition (C B ) is per 100 mol%, formula: R 1B -O-(G B ) 1 mol% of a compound represented by 1-H, formula: R 1B -O-(G B )2 mol% of a compound represented by 2-H, formula: R 1B -O-(G B 3 mol% of a compound represented by 3-H, formula: R 1B -O-(G B 4 mol% of a compound represented by 4-H, and formula: R 1B -O-(G B The composition is characterized by comprising a 5 mol% mixture of compounds represented by )5-H, where a1%+a2%+a3%+a4%+a5% is 100 mol%, and a1%+2a2%+3a3%+4a4%+5a5% is 100x. In this preferred aspect, the subject of the present invention is more specifically a composition of alkyl polyglucoside obtained by the reaction of the mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium, comprising 50.0% to 90.0% by mass of the total mass. B A mixture consisting of 10.0% by mass to 50.0% by mass (M B ) and the molecule of the mixture (M B The mass of ) and the mass ratio (R) where the denominator is the mass of the cross-linked anionic polymer electrolyte (AP). MB The aqueous gel is characterized by containing ) in a proportion of 1.0 to 10.0, more specifically 1.5 to 5.0. Such a mixture (M BAn example of this is a composition sold by SEPPIC under the name Montanov® 202, which contains, by its total mass, 80.0% by mass of an equal-mass mixture of behenyl alcohol and arachidyl alcohol and 20.0% by mass of an alkyl polyglucoside obtained by the reaction of the equal-mass mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium.

[0028] The term "oil" means a compound and / or mixture of compounds that are insoluble in water and liquid at 25°C, more specifically: - A straight-chain alkane having 11 to 19 carbon atoms; - Branched alkanes having 7 to 40 carbon atoms, such as isododecane, isopentadecane, isohexadecane, isoheptadecane, isooctadecane, isononadecane, or isoeicosane or mixtures thereof, as specified by INCI names such as C7-8 isoparaffin, C8-9 isoparaffin, C9-11 isoparaffin, C9-12 isoparaffin, C9-13 isoparaffin, C9-14 isoparaffin, C9-16 isoparaffin, C10-11 isoparaffin, C10-12 isoparaffin, C10-13 isoparaffin, C11-12 isoparaffin, C11-13 isoparaffin, C11-14 isoparaffin, C12-14 isoparaffin, C12-20 isoparaffin, C13-14 isoparaffin, and C13-16 isoparaffin; - Cycloalkanes substituted with one or more linear or branched alkyl groups as needed; - For example, white mineral oil sold under names such as Marcol(registered trademark) 52, Marcol(registered trademark) 82, Drakeol(registered trademark) 6VR, Eolane(trademark) 130, and Eolane(trademark) 150; - Hemisqualane (2,6,10-trimethyldodecane; CAS number: 3891-98-3), squalane (2,6,10,15,19,23-hexamethyltetracosane), hydrogenated polyisobutene, or hydrogenated polydecene; - A mixture of alkanes having 15 to 19 carbon atoms, wherein the alkanes are linear alkanes, branched alkanes, and cycloalkanes, more specifically, a mixture (Mi) in which the mass proportion of branched alkanes is 90% to 100% of the total mass; the mass proportion of linear alkanes is 0% to 9%, more specifically less than 5%; and the mass proportion of cycloalkanes is 0% to 1%. For example, a mixture sold under the names Emogreen® L15 or Emogreen® L19: - Formula (VIII): Z1-O-Z2 (VIII) Aliphatic alcohol ethers represented by the formula (wherein Z1 and Z2 may be the same or different, and may be linear or branched alkyl groups having 5 to 18 carbon atoms), such as dioctyl ether, didecyl ether, didodecyl ether, dodecyloctyl ether, dihexadecyl ether, (1,3-dimethylbutyl)tetradecyl ether, (1,3-dimethylbutyl)hexadecyl ether, bis(1,3-dimethylbutyl) ether, or dihexyl ether; - Formula (IX): R'4-(C=O)-O-R'5 (IX) Monoesters of fatty acids and alcohols represented by the formula (wherein R'4-(C=O) is a saturated or unsaturated linear or branched acyl group having 8 to 24 carbon atoms, and R'5 is a saturated or unsaturated linear or branched hydrocarbon chain having 1 to 24 carbon atoms, independently of R'4), such as methyl laurate, ethyl laurate, propyl laurate, isopropyl laurate, butyl laurate, 2-butyl laurate, hexyl laurate, methyl coconut fatty acid, ethyl coconut fatty acid, propyl coconut fatty acid, isopropyl coconut fatty acid, butyl coconut fatty acid, 2-butyl coconut fatty acid, hexyl coconut fatty acid, methyl myristate, ethyl myristate, propyl myristate, isopropyl myristate, butyl myristate, 2-butyl myristate, hexyl myristate, octyl myristate, palmitate These are methyl palmitate, ethyl palmitate, propyl palmitate, isopropyl palmitate, butyl palmitate, 2-butyl palmitate, hexyl palmitate, octyl palmitate, methyl oleate, ethyl oleate, propyl oleate, isopropyl oleate, butyl oleate, 2-butyl oleate, hexyl oleate, octyl oleate, methyl stearate, ethyl stearate, propyl stearate, isopropyl stearate, butyl stearate, 2-butyl stearate, hexyl stearate, octyl stearate, methyl isostearate, ethyl isostearate, propyl isostearate, isopropyl isostearate, butyl isostearate, 2-butyl isostearate, hexyl isostearate, and isostearyl isostearate; - Equations (X) and (XI): R'6-(C=O)-O-CH2-CH(OH)-CH2-O-(C=O)-R'7 (X) R'8-(C=O)-O-CH2-CHO-(C=O)-R'9-CH2-OH (XI) Diesters of fatty acids represented by the formula (wherein R'6-(C=O), R'7-(C=O), R'8-(C=O), and R'9-(C=O) may be the same or different, and may be saturated or unsaturated linear or branched acyl groups having 8 to 24 carbon atoms) and glycerol; - Formula (XII): R'10-(C=O)-O-CH2-CHO-(C=O)-R'11-CH2-O-(C=O)-R'12 (XII) (In the formula, R'10-(C=O), R'11-(C=O), and R'12-(C=O) may be the same or different, and may be saturated or unsaturated linear or branched acyl groups having 8 to 24 carbon atoms.) Glycerol fatty acid triesters represented by; - Phytosqualane, sweet almond oil, coconut kernel oil, castor oil, jojoba oil, olive oil, rapeseed oil, peanut oil, sunflower oil, wheat germ oil, corn germ oil, soybean oil, cottonseed oil, alfalfa oil, poppy seed oil, pumpkin seed oil, evening primrose oil, millet oil, barley oil, rye oil, safflower oil, kukui nut oil, passion fruit seed oil, hazelnut oil, palm oil, shea butter, apricot kernel oil, zedoary oil, sisylindrium oil, avocado oil, calendula oil, and other vegetable oils extracted from flowers and vegetables; - Ethoxylated vegetable oil That is the case.

[0029] The subject of this invention also relates to the following sequence of steps: The process of washing the skin; The step of applying the above aqueous gel to the cleansed skin; and, If necessary, the step of applying the desired cosmetic care formulation to the skin; This is a skincare beauty method characterized by including [a specific ingredient / feature].

[0030] The subject matter of this invention is also an alkanol represented by formula (IV):R1-OH (wherein R1 is a linear or branched alkyl group having 7 to 22 carbon atoms) or a mixture of alkanols represented by formula (IV); or Equation (V): R1-O-(G) x -H(wherein G is a glucose residue) or xylose residues eitherA composition (C) of an alkyl polyglycoside represented by x is a decimal between 1.05 and 2.05, more specifically between 1.10 and 2.00, and even more specifically between 1.20 and 1.80. The composition (C) consists of a mixture of a1 mol% of the compound represented by formula: R1-O-(G)1-H, a2 mol% of the compound represented by formula: R1-O-(G)2-H, a3 mol% of the compound represented by formula: R1-O-(G)3-H, a4 mol% of the compound represented by formula: R1-O-(G)4-H, and a5 mol% of the compound represented by formula: R1-O-(G)5-H per 100 mol%, where a1% + a2% + a3% + a4% + a5% is 100 mol%, and a1% + 2a2% + 3a3% + 4a4% + 5a5% is 100x; or , an alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) and a mixture (M) of composition (C). either The use of the above is 5.0 mol% to 95.0 mol% per 100 mol%, monomer units derived from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid represented by formula (I): (CH2=CH-C(=O)-NH)-C(CH3)2-S(=O)2-OH in the form of alkali metal salts or ammonium salts, 4.9 mol% to 90.0 mol%, monomer units derived from monomers represented by formula (II): CH2=CH-C(=O)-N(R4)2 (wherein R4 is a linear or branched alkyl group having 1 to 4 carbon atoms), and 0.1 mol% to 5.0 mol%, formula (III): CH2=C(CH3)-C(=O)-O-(CH2-CH2-O-) n The present invention relates to an aqueous gel containing 0.5% to 5.0% by mass of a crosslinked anionic polymer electrolyte (AP) comprising monomer units derived from a monomer represented by -R5 (wherein R5 is a linear or branched alkyl group having 8 to 20 carbon atoms, and n is a number between 1 and 20), based on the total mass, with the aim of reducing or eliminating stickiness during application to the skin.

[0031] The term "stickiness during application of aqueous gel to skin" refers to the effect induced by the adhesive force of the gel to the skin. In this invention, the adhesive force is measured using a rheometer, particularly the DHR2® rheometer sold by Texas Instruments. The adhesive force of the gel must be less than 4 Newtons so that the user does not feel this stickiness during application to the skin.

[0032] In another aspect, the above use is characterized in that the crosslinked anionic polymer electrolyte (AP) contains, per 100 mol%, monomer units derived from an acid represented by formula (III) in the form of a partially ammonium salt, per 100 mol%, from 60.0 mol% to 80.0 mol%, monomer units derived from N,N-dimethylacrylamide, and monomer units derived from tetraethoxylated lauryl methacrylate. An example of such a crosslinked anionic polymer electrolyte (AP) is Sepimax Zen®, a trimethylolpropane triacrylate crosslinked ternary polymer sold by SEPPIC, which contains, per 100 mol%, monomer units derived from ammonium 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonate, 19.2 mol%, monomer units derived from N,N-dimethylacrylamide, and 3.4 mol%, monomer units derived from tetraethoxylated lauryl methacrylate.

[0033] In another respect, the usage defined above is that R1 in formulas (IV) and (V) is in formula: CH3-(CH2) p -CH(CH3-(CH2) (p-2) Branched alkyl group R represented by )-CH2-(where p is an integer between 3 and 9) 1A This is characterized by the fact that, in this respect, the alkanol represented by formula (IV) is preferably of formula (IV A ): CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-OH is a 2-octyldodecane-1-ol, and composition (C) is preferably a 2-octyldodecane-1-ol represented by formula (V A):CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A ) x -H(in the formula, G A A composition of alkyl polyxyloside (C) is represented by a xylosyl group or an α,β-D-xylopyranosyl group, where x is a decimal number between 1.05 and 2.05, more specifically between 1.10 and 2.00, and even more specifically between 1.20 and 1.80). A ) and the composition (C A ) is per 100 mol%, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )1-H compound a1 mol%, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A 2 mol% of a compound represented by )2-H, formula: -(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A 3 mol% of a compound represented by 3-H, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A 4 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A It consists of a 5 mol% mixture of the compound represented by )5-H, where a1% + a2% + a3% + a4% + a5% is 100 mol%, and a1% + 2a2% + 3a3% + 4a4% + 5a5% is 100x. In this preferred aspect, the subject of this invention is more specifically the composition (C) with respect to its total mass. A ) is 10.0% by mass to 50.0% by mass, and the above formula (IV A A mixture (M) consisting of 50.0% to 90.0% by mass of alkanols represented by ). A ) is the previously defined use of such mixtures (M A An example of this is a composition sold by SEPPIC under the name Fluidanov® 20X, which contains 75.0% by mass of 2-octyldodecanol and 25.0% by mass of (2-octyldodecyl) polyxyloside, based on its total mass.

[0034] In another aspect, the above use is characterized in that R1 in the above formulas (IV) and (V) is a linear alkyl group R having 7 to 22 carbon atoms, most specifically 7 to 20 carbon atoms. 1B In this aspect, the above aqueous gel is preferably a mixture of the alkanol represented by the above formula (IV) or the alkanol represented by the above formula (IV), preferably in the formula (IV B ): R 1B -OH (wherein R 1B is a linear alkyl group having 20 to 22 carbon atoms), and the composition (C) is preferably a composition (C B ): R 1B -O-(G B ) x -H (wherein R 1B is as described above, G B is a glucosyl group or an α,β-D-glucopyranosyl group, and x is a decimal number of 1.05 to 2.05, more specifically 1.10 to 2.00, and even more specifically 1.20 to 1.80) of an alkyl polyglucoside. The composition (C B ) is such that, per 100 mol%, a1 mol% of the compound represented by the formula: R B -O-(G 1B )1-H, a2 mol% of the compound represented by the formula: R B -O-(G 1B )2-H, a3 mol% of the compound represented by the formula: R B -O-(G 1B )3-H, a4 mol% of the compound represented by the formula: R B -O-(G 1B )4-H, and the formula: R B -O-(G 1B -O-(G B)It consists of a mixture of a5 mol% of the compound represented by 5-H, where a1% + a2% + a3% + a4% + a5% is 100 mol% and a1% + 2a2% + 3a3% + 4a4% + 5a5% is 100x. In this preferred aspect, the subject matter of this invention is more specifically, with respect to its total mass, a mixture of arachidyl alcohol and behenyl alcohol is 50.0% to 90.0% by mass, and a composition (C B ) of an alkyl polyglucoside obtained by the reaction of the mixture of behenyl alcohol and arachidyl alcohol and glucose in an acidic medium is 10.0% to 50.0% by mass, which is the use defined so far for the mixture (M B ). An example of such a mixture (M B ) is a composition sold by SEPPIC under the name Montanov(trademark) 202, which contains 80.0% by mass of an equimolar mixture of behenyl alcohol and arachidyl alcohol and 20.0% by mass of an alkyl polyglucoside obtained by the reaction of the equimolar mixture of behenyl alcohol and arachidyl alcohol and glucose in an acidic medium with respect to its total mass.

[0035] The subject matter of this invention also relates to, per 100 mol%, 5.0 mol% to 95.0 mol% of monomer units derived from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid of the formula (I): (CH2=CH-C(=O)-NH)-C(CH3)2-S(=O)2-OH, which is a partial or complete alkali metal salt or ammonium salt, 4.9 mol% to 90.0 mol% of monomer units derived from a monomer of the formula (II): CH2=CH-C(=O)-N(R4)2 (where R4 is a linear or branched alkyl group having 1 to 4 carbon atoms), and 0.1 mol% to 5.0 mol% of the formula (III): CH2=C(CH3)-C(=O)-O-(CH2-CH2-O-) nA method for reducing or removing stickiness during application to the skin of an aqueous gel containing 0.5% to 5.0% by mass of a crosslinked anionic polymer electrolyte (AP) comprising a monomer unit derived from a monomer represented by formula (IV):R1-OH (wherein R1 is a linear or branched alkyl group having 8 to 20 carbon atoms, and n is a number between 1 and 20), based on the total mass thereof, wherein the composition of the aqueous gel contains, before application to the skin, an alkanol represented by formula (IV):R1-OH (wherein R1 is a linear or branched alkyl group having 8 to 22 carbon atoms), or a mixture of alkanols represented by formula (IV); or Equation (V): R1-O-(G) x -H(wherein G is a glucose residue) or xylose residues either A composition (C) of an alkyl polyglycoside represented by the formula:R1-O-(G)1-H, where x is a decimal value between 1.05 and 2.05, more specifically between 1.10 and 2.00, and even more specifically between 1.20 and 1.80, wherein composition (C) consists of a mixture of 1 mol% of a compound represented by the formula:R1-O-(G)1-H, 2 mol% of a compound represented by the formula:R1-O-(G)2-H, 3 mol% of a compound represented by the formula:R1-O-(G)3-H, 4 mol% of a compound represented by the formula:R1-O-(G)4-H, and 5 mol% of a compound represented by the formula:R1-O-(G)5-H, where a1%+a2%+a3%+a4%+a5% is 100 mol%, and a1%+2a2%+3a3%+4a4%+5a5% is 100x; or , an alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) and a mixture (M) of composition (C). either The mass of a mixture of an alkanol represented by formula (IV) or an alcohol represented by formula (IV) is or , the mass of the composition (C), or , the mass of the mixture (M) either , the mass ratio (R) in the modified aqueous gel, where the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). M The change is characterized by adding such a ratio that the ratio is between 1.0 and 10.0, or more specifically, between 1.5 and 5.0.

[0036] The term "stickiness during application of aqueous gel to skin" refers to the effect induced by the adhesive force of the gel to the skin. In this invention, the adhesive force is measured using a rheometer, particularly the DHR2® rheometer sold by Texas Instruments. The adhesive force of the gel must be less than 4 Newtons so that the user does not feel this stickiness during application to the skin.

[0037] In another aspect, the above method is characterized in that the crosslinked anionic polymer electrolyte (AP) contains, per 100 mol%, 60.0 mol% to 80.0 mol% monomer units derived from an acid represented by formula (III) in the form of a partially ammonium salt, 15.0 mol% to 39.5 mol% monomer units derived from N,N-dimethylacrylamide, and 0.5 mol% to 5.0 mol% monomer units derived from tetraethoxylated lauryl methacrylate.

[0038] In another respect, the above method is such that R1 in equations (IV) and (V) is equal to equation: CH3-(CH2) p -CH(CH3-(CH2) (p-2) Branched alkyl group R represented by )-CH2-(where p is an integer between 3 and 9) 1A This is characterized by the fact that, in this respect, the alkanol represented by formula (IV) is preferably of formula (IV A ): CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-OH is a 2-octyldodecane-1-ol, and composition (C) is preferably a 2-octyldodecane-1-ol represented by formula (V A ):CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A ) x -H(in the formula, G A A composition of alkyl polyxyloside (C) is represented by a xylosyl group or an α,β-D-xylopyranosyl group, where x is a decimal number between 1.05 and 2.05, more specifically between 1.10 and 2.00, and even more specifically between 1.20 and 1.80). A ) and the composition (C A) is per 100 mol%, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )1-H compound a1 mol%, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A 3 mol% of a compound represented by )2-H, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A )3-H compound a4 mol%, formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A 5 mol% of a compound represented by the formula: CH3-(CH2)9-CH(CH3-(CH2)7)-CH2-O-(G A It consists of a 5 mol% mixture of the compound represented by )5-H, where a1% + a2% + a3% + a4% + a5% is 100 mol%, and a1% + 2a2% + 3a3% + 4a4% + 5a5% is 100x. In this preferred aspect, the subject of this invention is more specifically the composition of the aqueous gel, which, before applying it to the skin, is the composition (C) of the total mass. A ) is 10.0% by mass to 50.0% by mass, and the above formula (IV A A mixture (M) consisting of 50.0% to 90.0% by mass of alkanols represented by ). A ) and the molecule of the mixture (M A The mass of ) and the mass ratio (R) in the modified aqueous gel, where the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). MA The above method is characterized by being modified by adding such a ratio that is between 1.0 and 10.0, more specifically between 1.5 and 5.0. A An example of this is a composition sold by SEPPIC under the name Fluidanov® 20X, which contains 75.0% by mass of 2-octyldodecanol and 25.0% by mass of (2-octyldodecyl) polyxyloside, based on its total mass.

[0039] In another respect, the above method is one in which R1 in formulas (IV) and (V) is a linear alkyl group having 7 to 22 carbon atoms, most specifically 12 to 22 carbon atoms. 1B This is characterized by the fact that the aqueous gel is preferably an alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV). B ):R 1B -OH(in the formula, R 1B A mixture of alkanols represented by formula (V is a linear alkyl group having 20 to 22 carbon atoms), wherein composition (C) is preferably a mixture of alkanols represented by formula (V B ):R 1B -O-(G B ) x -H(wherein, R 1B As stated above, G B A composition of alkyl polyglucoside (C) is represented by a glucosyl group or an α,β-D-glucopyranosyl group, where x is a decimal number between 1.05 and 2.05, more specifically between 1.10 and 2.00, and even more specifically between 1.20 and 1.80. B ) and the composition (C B ) is per 100 mol%, formula: R 1B -O-(G B ) 1 mol% of a compound represented by 1-H, formula: R 1B -O-(G B )2 mol% of a compound represented by 2-H, formula: R 1B -O-(G B 3 mol% of a compound represented by 3-H, formula: R 1B -O-(G B 4 mol% of a compound represented by 4-H, and formula: R 1B -O-(G BThe composition is characterized by comprising a 5 mol% mixture of compounds represented by )5-H, where a1%+a2%+a3%+a4%+a5% is 100 mol%, and a1%+2a2%+3a3%+4a4%+5a5% is 100x. In this preferred aspect, the subject of the present invention is, more specifically, the above method, wherein the aqueous gel composition comprises, before applying it to the skin, a mixture of arachidyl alcohol and behenyl alcohol in a total mass of 50.0% to 90.0% and an alkyl polyglucoside composition obtained by the reaction of the mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium. B A mixture consisting of 10.0% by mass to 50.0% by mass (M B ) and the molecule of the mixture (M B The mass of ) and the mass ratio (R) in the modified aqueous gel, where the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). MB The mixture (M) used in such a method is characterized by being modified by adding such a ratio of 1.0 to 10.0, more specifically, 1.5 to 5.0. B An example of this is a composition sold by SEPPIC under the name Montanov® 202, which contains, by its total mass, 80.0% by mass of an equal-mass mixture of behenyl alcohol and arachidyl alcohol and 20.0% by mass of an alkyl polyglucoside obtained by the reaction of the equal-mass mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium.

[0040] The following experimental section is intended to illustrate this invention and does not modify it. [Examples]

[0041] Manufacturing of aqueous gels The aqueous gels A, A', B, C, E, E', F, G, H, L, M, N, and P of the present invention, as well as the control gels T1, T'1, and T2, are prepared by mixing their components. The compositions are shown in Tables 1-5 below, and the compositions of the control solutions T1, T'1, and T2 are shown in Tables 4 and 5. The common manufacturing method for all is as follows: - Pour the required amount of water at 20°C into a reactor equipped with a mechanical stirrer and a jacket containing heat exchange fluid, then raise the temperature to 25°C while stirring at 1000 rpm using a Rayneri blender equipped with a decomposer; Next, gradually add the cross-linked anionic polymer electrolyte (AP1) while stirring at 25°C; - After homogenizing the resulting gel, gradually add the test anti-tack agent at 25°C while stirring at 1000 rpm; - Maintain the resulting mixture at 25°C, then add salt to the resulting medium as needed and continue stirring.

[0042] Gels D, D', I, and J are prepared similarly, but at a temperature of 75°C to 85°C. Any addition of salts is done after cooling to 40°C.

[0043] [Table 1]

[0044] [Table 2]

[0045] [Table 3]

[0046] [Table 4]

[0047] [Table 5]

[0048] - The crosslinked anionic polymer electrolyte AP1 is a trimethylolpropane triacrylate crosslinked ternary polymer containing, per 100 mol%, 77.4 mol% monomer units derived from ammonium 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonate, 19.2 mol% monomer units derived from N,N-dimethylacrylamide, and 3.4 mol% monomer units derived from tetraethoxylated lauryl methacrylate. - Fluidanov(trademark) 20X is a composition containing 75.0% by mass of 2-octyldodecanol and 25.0% by mass of (2-octyldodecyl) polyxyloside obtained by the reaction of xylose and 2-octyldodecanol in an acidic medium, based on the total mass; Montanov(trademark) 202 is a composition containing, by mass, 80.0% by mass of an equal-mass mixture of behenyl alcohol and arachidyl alcohol, and 20.0% by mass of an alkyl polyglucoside obtained by the reaction of the equal-mass mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium. - Oramix(trademark) CG110 is a composition containing 99.0% by mass of a 50 / 50 mixture of 1-octyl polyglucoside and 1-decyl polyglucoside, and 1.0% by mass of water obtained by the reaction of a 50 / 50 mixture of 1-octanol and 1-decanol with glucose in an acidic medium, based on the total mass. - Sepiclear(trademark) G7 is a composition containing 99.0% by mass of n-heptanyl polyglucoside and 1.0% by mass of n-heptan-1-ol, based on the total mass.

[0049] Analysis of aqueous gels - After storing at 25°C and 45°C for 7 days, visually evaluate the appearance of the aqueous gel; - The viscosity (MPa.s) of the aqueous gel is measured using a Brookfield® RVT viscometer with a No. 3 spindle at a rotation speed of 6 rpm. The tolerance range is 5000 mPa.s to 50000 mPa.s. - Stickiness is determined by measuring the adhesive strength of a 100 μl aqueous gel sample on a PMMA plate placed on a Peltier plate using a Texas Instruments DHR2® rheometer. Rotational stress is applied to the movable upper plate on the gel for 10 seconds. The normal strength (or adhesive strength, in Newtons) that holds the movable upper plate on the Peltier plate is measured during 10 repetitions of compression and lifting motion. Five measurements are performed for each gel. The adhesive strength of the gel must be less than 4 Newtons so that the user does not feel stickiness when applying it to the skin. The results of the analysis are summarized in Tables 6 and 7.

[0050] [Table 6]

[0051] [Table 7]

[0052] [Table 8]

[0053] These results indicate that a fatty alcohol or a mixture of fatty alcohols having 7 to 22 carbon atoms, or the mass ratio (R) described in the claims, can be added to an aqueous gel thickened with a crosslinked anionic polymer electrolyte. M This demonstrates a reduction in stickiness caused by the presence of a composition of fatty alcohols and alkyl polyglycosides.

Claims

1. For its total mass, - Per 100 mol%, • Formula (I) in the form of partially or completely alkali salts or ammonium salts, present in concentrations of 5.0 mol% to 95.0 mol%: (CH ２ =CH-C(=O)-NH)-C(CH ３ ) ２ -S (=O) ２ A monomer unit derived from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid, represented by -OH. - Formula (II) for 4.9 mol% to 90.0 mol%: CH ２ =CH-C(=O)-N(R ４ ) ２ (In the formula, R ４ A monomer unit derived from a monomer (which is a linear or branched alkyl group having 1 to 4 carbon atoms), ・ 0.1 mol% to 5.0 mol% of the formula (III): CH ２ =C(CH ３ )-C(=O)-O-(CH ２ -CH ２ -O-) ｎ -R ５ (wherein, R ５ is a linear or branched alkyl group having 8 to 20 carbon atoms, and n is a number of 1 or more and 20 or less), a monomer unit derived from the monomer represented by A crosslinked anionic polymer electrolyte (AP) containing the above is used in a concentration of 0.5% to 5.0% by mass. - Formula (IV): R １ -OH (in the formula, R １ Alkanols represented by formula (IV) (where is a linear or branched alkyl group having 7 to 22 carbon atoms), or mixtures of alkanols represented by formula (IV); or, ・Formula (V): R １ -O-(G) ｘ A composition (C) of an alkyl polyglycoside represented by -H (wherein G is either a glucose residue or a xylose residue, and x is a decimal number between 1.05 and 2.05), the composition (C) contains, per 100 mol%, the formula: R １ -O-(G) １ a of the compound represented by -H １ mol%, formula: R １ -O-(G) ２ a of the compound represented by -H ２ mol%, formula: R １ -O-(G) ３ a of the compound represented by -H ３ mol%, formula: R １ -O-(G) ４ a of the compound represented by -H ４ mol%, and formula: R １ -O-(G) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The percentage is 100x; or, - A mixture (M) of the alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) and composition (C); One of the following, in an amount of 0.5% to 9.5% by mass. - One or more cosmetic active ingredients selected from the group consisting of retinol, vitamin C, niacinamide (vitamin B3), undecylenoyl phenylalanine, glycolic acid, azelaic acid, hyaluronic acid, a mixture of xylitol, polyglucoside, and 1,4-anhydroxylitol, and urea, in an amount of 0.0% to 3.0% by mass, - The amount needed to make water 100% by mass, An aqueous gel characterized by containing, The mass ratio (R) of the aqueous gel, where the molecule is the mass of the alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV), or the mass of composition (C), or the mass of mixture (M), and the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). Ｍ ) is between 1.0 and 10.

0. An oil-free, water-based gel.

2. The aforementioned crosslinked anionic polymer electrolyte (AP) is, per 100 mol%, - Monomer units derived from acids represented by formula (III) in the form of a partially ammonium salt, in amounts of 60.0 mol% to 80.0 mol%. - 15.0 mol% to 39.5 mol% of monomer units derived from N,N-dimethylacrylamide, and - 0.5 mol% to 5.0 mol% monomer units derived from tetraethoxylated lauryl methacrylate, The aqueous gel according to claim 1, characterized by containing the following:

3. The aqueous gel according to claim 1 or 2, characterized in that at least one water-soluble salt selected from the group consisting of alkali metal salts, alkaline earth metal salts, and transition metal salts is dissolved in the water in which the aqueous gel is prepared, and the total concentration of the at least one water-soluble salt in the water is greater than 0.00 mol / L and 1.00 mol / L or less.

4. The alkanol represented by the formula (IV) is 2-octyldodecan-1-ol represented by the formula (IV Ａ ): CH ３ -(CH ２ ) ９ -CH(CH ３ -(CH ２ ) ７ )-CH ２ -OH, and the composition (C) is a composition (C Ａ ) of an alkyl polyxyloside represented by the formula (V ３ ): CH ２ -(CH ９ ) ３ -CH(CH ２ -(CH ７ ))-CH ２ -O-(G Ａ ) ｘ -H (wherein G Ａ is a xylosyl group or an α,β-D-xylopyranosyl group, and x is a decimal number from 1.05 to 2.05), and the composition (C Ａ ) contains, per 100 mol%, a Ａ mol% of a compound represented by the formula: CH ３ -(CH ２ ) ９ -CH(CH ３ -(CH ２ ))-CH ７ -O-(G ２ )) Ａ -H, a １ mol% of a compound represented by the formula: CH １ -(CH ３ ) ２ -CH(CH ９ -(CH ３ ))-CH ２ -O-(G ７ )) ２ -H, and a Ａ mol% of a compound represented by the formula: CH ２ -(CH ２ ) ３ -CH(CH ２ -(CH ９ ))-CH ３ -O-(G ２ )) ７ )-CH ２ -O-(G Ａ )) ３ a mol% of the compound represented by -H ３ CH ３ -(CH ２ ) ９ -CH(CH ３ -(CH ２ ) ７ )-CH ２ -O-(G Ａ ) ４ a mol% of the compound represented by -H, and ４ CH ３ -(CH ２ ) ９ -CH(CH ３ -(CH ２ ) ７ )-CH ２ -O-(G Ａ ) ５ a mol% of the compound represented by -H, consisting of a mixture of a ５ %, a １ % + a ２ % + a ３ % + a ４ % + a ５ % being 100 mol%, and a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ % being 100x, the aqueous gel according to any one of claims 1 to 3.

5. With respect to its total mass, the composition (C Ａ ) is 10.0% by mass to 50.0% by mass, and the above formula (IV Ａ A mixture (M) consisting of 50.0% to 90.0% by mass of alkanols represented by ). Ａ ) and the molecule of the mixture (M Ａ The mass of ) and the mass ratio (R) where the denominator is the mass of the cross-linked anionic polymer electrolyte (AP). ＭＡ The aqueous gel according to claim 4, characterized in that it contains ) in a proportion of 1.0 to 10.0, more specifically 1.5 to 5.

0.

6. The alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) Ｂ ): R １Ｂ -OH (in the formula, R １Ｂ The composition (C) is a mixture of alkanols represented by formula (V Ｂ ): R １Ｂ -O-(G Ｂ ) ｘ -H (wherein, R １Ｂ As stated above, G Ｂ A composition of alkyl polyglucosides represented by (C) is a glucosyl group or an α,β-D-glucopyranosyl group, and x is a decimal number from 1.05 to 2.

05. Ｂ ) and the composition (C Ｂ ) is per 100 mol%, formula: R １Ｂ -O-(G Ｂ ) １ a of the compound represented by -H １ mol%, formula: R １Ｂ -O-(G Ｂ ) ２ a of the compound represented by -H ２ mol%, formula: R １Ｂ -O-(G Ｂ ) ３ a of the compound represented by -H ３ mol%, formula: R １Ｂ -O-(G Ｂ ) ４ a of the compound represented by -H ４ mol%, and formula: R １Ｂ -O-(G Ｂ ) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ An aqueous gel according to any one of claims 1 to 3, characterized in that the percentage is 100x.

7. The total mass of the mixture is 50.0% to 90.0% by mass of arachidyl alcohol and behenyl alcohol, and the alkyl polyglucoside composition (C) obtained by the reaction of the mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium. Ｂ A mixture consisting of 10.0% to 50.0% by mass (M Ｂ ) and the molecule of the mixture (M Ｂ The mass of ) and the mass ratio (R) where the denominator is the mass of the cross-linked anionic polymer electrolyte (AP). ＭＢ The aqueous gel according to claim 6, characterized in that it contains ) in a proportion of 1.0 to 10.0, more specifically 1.5 to 5.

0.

8. The following are the sequential steps: - The process of washing the skin; - A step of applying the aqueous gel according to any one of claims 1 to 7 to the cleansed skin; and, - A step of applying the desired cosmetic care formulation to the skin as needed; A skincare beauty method characterized by including [the following].

9. Formula (IV): R １ -OH (in the formula, R １ Alkanols represented by formula (IV) (where is a linear or branched alkyl group having 7 to 22 carbon atoms) or mixtures of alkanols represented by formula (IV); or formula (V): R １ -O-(G) ｘ A composition (C) of an alkyl polyglycoside represented by -H (wherein G is either a glucose residue or a xylose residue, and x is a decimal number between 1.05 and 2.05), the composition (C) contains, per 100 mol%, the formula: R １ -O-(G) １ a of the compound represented by -H １ mol%, formula: R １ -O-(G) ２ a of the compound represented by -H ２ mol%, formula: R １ -O-(G) ３ a of the compound represented by -H ３ mole%, formula (II) ４ : R １ -O-(G) ４ a of the compound represented by -H ４ mol%, and formula: R １ -O-(G) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The use is of a compound (I) in the form of an alkali metal salt or ammonium salt, where the percentage is 100x; or a compound (M) of the alkanol represented by formula (IV) or a mixture of the alkanol represented by formula (IV) and composition (C); wherein the use is of a compound (I) in the form of an alkali metal salt or ammonium salt in an amount of 5.0 mol% to 95.0 mol% per 100 mol%. ２ =CH-C(=O)-NH)-C(CH ３ ) ２ -S (=O) ２ Monomer units derived from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid, represented by -OH; formula (II) in amounts of 4.9 mol% to 90.0 mol%: CH ２ =CH-C(=O)-N(R ４ ) ２ (In the formula, R ４ Monomer units derived from monomers represented by (a linear or branched alkyl group having 1 to 4 carbon atoms); and 0.1 mol% to 5.0 mol% of formula (III): CH ２ = C(CH ３ )-C(=O)-O-(CH ２ -CH ２ -O-) ｎ -R ５ (In the formula, R ５ The use is characterized by the purpose of reducing or eliminating stickiness when an aqueous gel is applied to the skin, wherein the aqueous gel contains a crosslinked anionic polymer electrolyte (AP) comprising monomer units derived from a monomer (where n is a linear or branched alkyl group having 8 to 20 carbon atoms, and n is a number between 1 and 20); in an amount of 0.5% to 5.0% by mass relative to the total mass of the aqueous gel.

10. The use according to claim 9, characterized in that the crosslinked anionic polymer electrolyte (AP) contains, per 100 mol%, 60.0 mol% to 80.0 mol% monomer units derived from an acid represented by formula (I) in the form of a partially ammonium salt, 15.0 mol% to 39.5 mol% monomer units derived from N,N-dimethylacrylamide, and 0.5 mol% to 5.0 mol% monomer units derived from tetraethoxylated lauryl methacrylate.

11. The alkanol represented by the above formula (IV) Ａ ): CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ It is 2-octyldodecane-1-ol represented by -OH, and the composition (C) is of formula (V Ａ ): CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ｘ -H (in the formula, G Ａ A composition of alkyl polyxyloside represented by (C) is a xylosyl group or an α,β-D-xylopyranosyl group, and x is a decimal number from 1.05 to 2.

05. Ａ ) and the composition (C Ａ ) is per 100 mol%, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) １ a of the compound represented by -H １ Mole percent, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ２ a of the compound represented by -H ２ Mole percent, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ３ a of the compound represented by -H ３ Mole percent, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ４ a of the compound represented by -H ４ Mole percent, and formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The use according to claim 9 or 10, characterized in that the percentage is 100x.

12. With respect to its total mass, the composition (C Ａ ) is 10.0% by mass to 50.0% by mass, and the above formula (IV Ａ A mixture (M) consisting of 50.0% to 90.0% by mass of alkanols represented by ). Ａ The use of the product as described in claim 11.

13. The alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) Ｂ ): R １Ｂ -OH (in the formula, R １Ｂ The composition (C) is a mixture of alkanols represented by formula (V Ｂ ): R １Ｂ -O-(G Ｂ ) ｘ -H (wherein, R １Ｂ As stated above, G Ｂ A composition of alkyl polyglucosides represented by (C) is a glucosyl group or an α,β-D-glucopyranosyl group, and x is a decimal number from 1.05 to 2.

05. Ｂ ) and the composition (C Ｂ ) is per 100 mol%, formula: R １Ｂ -O-(G Ｂ ) １ a of the compound represented by -H １ mol%, formula: R １Ｂ -O-(G Ｂ ) ２ a of the compound represented by -H ２ mol%, formula: R １Ｂ -O-(G Ｂ ) ３ a of the compound represented by -H ３ mol%, formula: R １Ｂ -O-(G Ｂ ) ４ a of the compound represented by -H ４ mol%, and formula: R １Ｂ -O-(G Ｂ ) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The use according to claim 9 or 10, characterized in that the percentage is 100x.

14. A composition of alkyl polyglucoside obtained by the reaction of the behenyl alcohol and arachidyl alcohol mixture with glucose in an acidic medium (C Ｂ A mixture consisting of 10.0% to 50.0% by mass (M Ｂ The use of the product as described in claim 13.

15. Per 100 mol%, 5.0 mol% to 95.0 mol% of partially or completely alkali metal salts or ammonium salts of formula (I): (CH ２ =CH-C(=O)-NH)-C(CH ３ ) ２ -S (=O) ２ Monomer units derived from 2-methyl-2-((1-oxo-2-propenyl)amino)-1-propanesulfonic acid, represented by -OH, in amounts of 4.9 mol% to 90.0 mol% of formula (II): CH ２ =CH-C(=O)-N(R ４ ) ２ (In the formula, R ４ A monomer unit derived from a monomer represented by (a linear or branched alkyl group having 1 to 4 carbon atoms), and 0.1 mol% to 5.0 mol% of formula (III): CH ２ = C(CH ３ )-C(=O)-O-(CH ２ -CH ２ -O-) ｎ -R ５ (In the formula, R ５ A method for reducing or removing stickiness during application to the skin of an aqueous gel containing 0.5% to 5.0% by mass of a crosslinked anionic polymer electrolyte (AP) comprising monomer units derived from a monomer represented by (a linear or branched alkyl group having 8 to 20 carbon atoms, where n is a number between 1 and 20), based on the total mass thereof, wherein the composition of the aqueous gel is, before application to the skin, therein, formula (IV):R １ -OH (in the formula, R １ Alkanols represented by formula (IV) (where is a linear or branched alkyl group having 8 to 22 carbon atoms) or mixtures of alkanols represented by formula (IV); or formula (V): R １ -O-(G) ｘ A composition (C) of an alkyl polyglycoside represented by -H (wherein G is either a glucose residue or a xylose residue, and x is a decimal number between 1.05 and 2.05), the composition (C) contains, per 100 mol%, the formula: R １ -O-(G) １ a of the compound represented by -H １ mol%, formula: R １ -O-(G) ２ a of the compound represented by -H ２ mol%, formula: R １ -O-(G) ３ a of the compound represented by -H ３ mol%, formula: R １ -O-(G) ４ a of the compound represented by -H ４ mol%, and formula: R １ -O-(G) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The percentage is 100x; or, the mass ratio (R) of either the alkanol represented by formula (IV) or a mixture of the alkanol represented by formula (IV) and a mixture (M) of composition (C) in a modified aqueous gel, where the numerator is the mass of the mixture of the alkanol represented by formula (IV) or the alcohol represented by formula (IV), or the mass of composition (C), or the mass of mixture (M), and the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). Ｍ A method characterized by the addition of ) in a ratio of 1.0 to 10.0, more specifically, 1.5 to 5.

0.

16. The method according to claim 15, characterized in that the crosslinked anionic polymer electrolyte (AP) comprises, per 100 mol%, 60.0 mol% to 80.0 mol% monomer units derived from an acid represented by formula (I) in the form of a partially ammonium salt, 15.0 mol% to 39.5 mol% monomer units derived from N,N-dimethylacrylamide, and 0.5 mol% to 5.0 mol% monomer units derived from tetraethoxylated lauryl methacrylate.

17. The alkanol represented by the above formula (IV) Ａ ): CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ It is 2-octyldodecane-1-ol represented by -OH, and the composition (C) is of formula (V Ａ ): CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ｘ -H (in the formula, G Ａ A composition of alkyl polyxyloside represented by (C) is a xylosyl group or an α,β-D-xylopyranosyl group, and x is a decimal number from 1.05 to 2.

05. Ａ ) and the composition (C Ａ ) is per 100 mol%, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) １ a of the compound represented by -H １ Mole percent, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ２ a of the compound represented by -H ２ Mole percent, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ３ a of the compound represented by -H ３ Mole percent, formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ４ a of the compound represented by -H ４ Mole percent, and formula: CH ３ - (CH ２ ) ９ -CH(CH ３ - (CH ２ ) ７ ) - CH ２ -O-(G Ａ ) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The method according to claim 15 or 16, characterized in that the percentage is 100x.

18. The aqueous gel composition, before applying it to the skin, should be diluted with the composition (C) in proportion to its total mass. Ａ ) is 10.0% by mass to 50.0% by mass, and the above formula (IV Ａ A mixture (M) consisting of 50.0% to 90.0% by mass of alkanols represented by ). Ａ ) and the molecule of the mixture (M Ａ The mass of ) and the mass ratio (R) in the modified aqueous gel, where the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). ＭＡ The method according to claim 17, characterized in that the ratio is changed by adding such a ratio that is 1.0 or more and 10.0 or less, more specifically 1.5 or more and 5.0 or less.

19. The alkanol represented by formula (IV) or a mixture of alkanols represented by formula (IV) Ｂ ): R １Ｂ -OH (in the formula, R １Ｂ The composition (C) is a mixture of alkanols represented by formula (V Ｂ ): R １Ｂ -O-(G Ｂ ) ｘ -H (wherein, R １Ｂ As stated above, G Ｂ A composition of alkyl polyglucosides represented by (C) is a glucosyl group or an α,β-D-glucopyranosyl group, and x is a decimal number from 1.05 to 2.

05. Ｂ ) and the composition (C Ｂ ) is per 100 mol%, formula: R １Ｂ -O-(G Ｂ ) １ a of the compound represented by -H １ mol%, formula: R １Ｂ -O-(G Ｂ ) ２ a of the compound represented by -H ２ mol%, formula: R １Ｂ -O-(G Ｂ ) ３ a of the compound represented by -H ３ mol%, formula: R １Ｂ -O-(G Ｂ ) ４ a of the compound represented by -H ４ mol%, and formula: R １Ｂ -O-(G Ｂ ) ５ a of the compound represented by -H ５ It consists of a mol% mixture, a １ % + a ２ % + a ３ % + a ４ % + a ５ % is 100 mol%, a １ % + 2a ２ % + 3a ３ % + 4a ４ % + 5a ５ The method according to claim 15 or 16, characterized in that the percentage is 100x.

20. The aqueous gel composition, before being applied to the skin, contains 50.0% to 90.0% by mass of a mixture of arachidyl alcohol and behenyl alcohol, and an alkyl polyglucoside composition (C) obtained by the reaction of the mixture of behenyl alcohol and arachidyl alcohol with glucose in an acidic medium. Ｂ A mixture consisting of 10.0% to 50.0% by mass of (M Ｂ ) and the molecule of the mixture (M Ｂ The mass of ) and the mass ratio (R) in the modified aqueous gel, where the denominator is the mass of the crosslinked anionic polymer electrolyte (AP). ＭＢ The method according to claim 19, characterized in that the ratio is changed by adding such a ratio that is 1 or more and 10 or less, more specifically 1.5 or more and 5.0 or less.

Images