WO2020090874A1

WO2020090874A1 - Emulsified cosmetic and method for producing same

Info

Publication number: WO2020090874A1
Application number: PCT/JP2019/042537
Authority: WO
Inventors: 紘平大谷; 妙小原
Original assignee: 株式会社コーセー
Priority date: 2018-11-01
Filing date: 2019-10-30
Publication date: 2020-05-07
Also published as: JPWO2020090874A1; CN112654342A; KR20210087449A; TW202027715A

Abstract

[Problem] To provide an emulsified cosmetic that forms a coating film having excellent water resistance and wear resistance and that further has preparation stability and good usability. [Solution] An emulsified cosmetic comprising: (a) an oil phase containing a water-soluble cationic polymer; and (b) an aqueous phase containing a water-soluble anionic polymer.

Description

Emulsified cosmetic and method for producing the same

The present invention relates to an emulsified cosmetic, and more specifically to an emulsified cosmetic containing an oil phase containing a water-soluble cationic polymer and an aqueous phase containing a water-soluble anionic polymer, and a method for producing the same.

Demand for functional cosmetics has increased in recent years, and various functional cosmetics have been developed according to the purpose of use. For example, hair that causes swelling when the humidity is high is added with a function to prevent it during the day, UVA (long wavelength UV of wavelength 320 to 400 nm), UVB for foundations and sunscreens. In many cases, the functionality is embodied by forming a coating film on the skin or hair, such as cosmetics having a high UV protection ability to protect the skin from (medium wavelength UV of wavelength 290 to 320 nm).

However, it was known that the coating film formed when the cosmetic was applied fell off over time and the functionality declined. Especially when the product is physically rubbed, sweated, or bathed in the pool or the sea, the coating film was more likely to drop off. Was required.

Therefore, in order to solidify the oil component containing the hydrophobicized fine particle zinc oxide and the oil-soluble UV absorber as a coating film, a technique of imparting high water resistance by selecting silicic acid anhydride as a gelling agent ( For example, JP-A-2018-76313) or a fine particle metal oxide whose surface is coated with a specific compound is dispersed in an oil phase together with a specific partially crosslinked organopolysiloxane polymer and polyhydroxystearic acid, A technique for imparting water resistance by forming a soft and uniform cosmetic film by combining with a sodium acid / acryloyldimethyltaurine sodium) copolymer to form an oil-in-water emulsion cosmetic (for example, JP-A-2017-137300). ), A polyio formed from a specific combination of cationic and anionic polymers. By using a complex as an emulsifier, a stable oil-in-water emulsion composition can be obtained, various oil components can be blended, and the obtained oil-in-water emulsion exhibits excellent water resistance (for example, JP 2011-32249) and the like have been developed.

However, the above-mentioned technology had problems that it did not have a good feel as a cosmetic, and that it had insufficient water resistance and abrasion resistance.

Therefore, an object of the present invention is to provide an emulsified cosmetic composition which forms a coating film having excellent water resistance and abrasion resistance, and further has formulation stability and good usability.

In view of such circumstances, the present inventors tried to blend a cationic polymer and an anionic polymer in the same phase. Then, the present inventors have found that when a cationic polymer and an anionic polymer are blended in the same phase, agglomeration occurs and the formulation does not hold. As a result of diligent studies, the inclusion of a water-soluble cationic polymer in the oil phase and a water-soluble anionic polymer in the aqueous phase has stability as a formulation, and further, the water-soluble cationic polymer and the water-soluble anion are applied during application. The present invention has been completed based on the finding that the water-resistant and abrasion-resistant properties of the coating film are improved by the aggregation of the water-soluble polymer to form a strong coating film and that the coating film has a good feeling in use.

That is, the present invention is
(1) An emulsion cosmetic containing (a) an oil phase containing a water-soluble cationic polymer and (b) an aqueous phase containing a water-soluble anionic polymer.

(2) The emulsion cosmetic according to (1), which comprises (c) at least one of a metal oxide and a plate-like powder.

(3) The emulsion cosmetic according to (1) or (2), which contains (d) inulin stearate.

(4) The emulsified cosmetic composition according to any one of (1) to (3), wherein the content mass ratio (a) / (b) is 0.05 to 20.

(5) (a) The water-soluble cationic polymer is dimethyldiallylammonium chloride / acrylamide copolymer, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride, and O- [2-chloride chloride. The emulsion cosmetic according to any one of (1) to (4), which is one or more selected from the group consisting of hydroxy-3- (trimethylammonio) propyl] guar gum.

(6) One or two of (b) the water-soluble anionic polymer selected from the group consisting of carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, and sodium acrylate / acryloyl dimethyl sodium taurate phosphate copolymer. The emulsion cosmetic according to any one of (1) to (5), which comprises at least one kind.

(7) The oil-in-water emulsified cosmetic composition according to any one of (1) to (6).

(8) (e) The emulsified cosmetic composition according to any one of (1) to (7), which contains dimethicodiethylbenzalmalonate.

(9) A method for producing an emulsified cosmetic containing (a) an oil phase containing a water-soluble cationic polymer and (b) an aqueous phase containing a water-soluble anionic polymer.

Hereinafter, preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the following preferred embodiments and can be freely modified within the scope of the present invention. In this specification, “to” means a range including numerical values before and after it. Unless otherwise specified, operations and measurements of physical properties are performed at room temperature (20 to 25 ° C.) / Relative humidity of 40 to 50% RH.

The emulsified cosmetic composition of the present invention contains a water-soluble cationic polymer in the oil phase and a water-soluble anionic polymer in the water phase, so that it has high water resistance and is resistant to friction (high friction resistance). It is possible to provide an emulsified cosmetic composition that is excellent (for example, does not have a greasy feeling or a slimy feeling and has a fresh feeling) and is excellent in stability.

(Emulsified cosmetics)
The emulsified cosmetic material in the present invention means an emulsion in which one of an oil phase containing component (a) a water-soluble cationic polymer and an aqueous phase containing component (b) a water-soluble anionic polymer is present as emulsified droplets. It is a cosmetic and may contain other components as long as the effects of the present invention are not impaired.

The component (a) water-soluble cationic polymer (hereinafter also simply referred to as component (a)) used in the present invention is a polymer having a cationic group in the molecule. The water-soluble cationic polymer as the component (a) is not particularly limited as long as it is usually used in cosmetics, but the feel and water resistance when a coating film with the water-soluble anionic polymer is formed is not limited. From the viewpoint of superiority, those containing an amino group or an ammonium group bonded to the polymer chain or containing dimethyldiallylammonium halide as a constituent unit are preferable.

The component (a) is not particularly limited, and examples thereof include vinylpyrrolidone / N, N-dimethylaminoethylmethacrylic acid copolymer diethyl sulfate, dimethyldiallylammonium chloride / acrylamide copolymer, acrylamide / acrylic acid / chloride. Dimethyldiallylammonium copolymer, dimethyldiallylammonium chloride / acrylic acid copolymer, polydimethylmethylene piperidinium chloride, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride, O- [chloride 2-Hydroxy-3- (trimethylammonio) propyl] guar gum, vinylpyrrolidone / N, N-dimethylaminoethylmethacrylic acid copolymer diethyl sulfate, O- [2-hydroxy-3- (trimethylammonio) propionyl chloride Guar gum, 2-methacryloyloxyethyl phosphorylcholine-2-hydroxy-3-methacryloyloxypropyl trimethyl ammonium chloride copolymer, O- (2-hydroxy-3- (trimethylammonio) propyl) locust bean gum, hydroxypropyltrimonium chloride Starch, vinylpyrrolidone / N, N-dimethylaminoethyl methacrylate / stearyl acrylate / tripropylene glycol diacrylate copolymer, hydroxypropyltrimonium hyaluronate and the like are mentioned, and one or more of them may be used. it can. Among these, dimethyldiallylammonium chloride / acrylamide copolymer, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride, chloride O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum is particularly preferred, and dimethyldiallylammonium chloride / acrylamide copolymer is most preferred.

Commercially available examples of the component (a) in the present invention include, for example, R-Gard GP (manufactured by Lion Corp.), which is polyquaternium-10 as O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride. Catinal HC-100 (manufactured by Toho Chemical Industry Co., Ltd.), an aqueous solution of polyquaternium-7 as a dimethyldiallylammonium chloride / acrylamide copolymer, Lipoflow MN (manufactured by Lion), MERQUAT 550PR, MERQUAT 740 POLYMER (above, Japan Lubri) SOL), acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer, MERQUAT 3331PR (manufactured by Japan Lubrizol), which is an aqueous solution of polyquaternium-39. As a diallylammonium / acrylic acid copolymer, an aqueous solution of polyquaternium-22, MERQUAT295Polymer (manufactured by Nippon Lubrizol Co., Ltd.), O- [2-hydroxy-3- (trimethylammonio) propyl] guar chloride JAGUAR C-14S as guar gum (C) (manufactured by SOLVAY), SENSOMER CI50 (manufactured by Lubrizol Japan), which is an aqueous solution of hydroxypropyltrimonium chloride starch, and Hyaroval P (manufactured by Kewpie), which is hydroxypropyltrimonium hyaluronate. ..

The content of the component (a) in the present invention is not particularly limited, but 0.001 to 3% by mass (hereinafter simply referred to as “%”) in the emulsified cosmetic composition can be blended, and 0.001 to 1% is preferable. , 0.01 to 1% is more preferable, 0.01 to 0.5% is still more preferable, and 0.1 to 0.3% is particularly preferable. Within this range, excellent stability and water resistance and abrasion resistance can be imparted while maintaining a good feeling during use.

In the manufacturing process, the component (a) can be contained in the oil phase by dissolving and dispersing the component (a) in the oil phase.

The component (b) water-soluble anionic polymer (hereinafter, also referred to as component (b)) used in the present invention is a polymer having an anionic group in the molecule. The water-soluble anionic polymer as the component (b) is not particularly limited as long as it is usually used in cosmetics, but the feel and water resistance and abrasion resistance when a coating film with a water-soluble cationic polymer is formed. From the viewpoint of excellent properties, for example, carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, sodium acrylate / acryloyldimethyl sodium taurate copolymer, alkyl acrylate / alkyl methacrylate / methacrylic acid polyoxyethylene stearyl ether ( 20EO) copolymers and other water-soluble acrylic acid polymers, anionic polysaccharides, anionic polyamino acids, and the like, and one or more of these can be used. Among these, from the viewpoint of water resistance and abrasion resistance of the coating film formed, the component (b) water-soluble anionic polymer is carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, and sodium acrylate / acryloyldimethyl. One or more selected from the group consisting of sodium taurate phosphates are preferable, acrylic acid-based water-soluble polymers are preferable, and acrylic acid / alkyl methacrylate copolymers (preferably acrylates / acrylic acid) are used. Alkyl (C10-C30) crosspolymer), sodium acrylate / sodium acryloyldimethyltaurate phosphate copolymer are more preferable. Further, from the viewpoint of excellent water resistance and abrasion resistance, it is particularly preferable to use the acrylic acid / alkyl methacrylate copolymer and the sodium acrylate / sodium acryloyldimethyltaurate phosphate copolymer in combination. When the acrylic acid / alkyl methacrylate copolymer and the sodium acrylate / acryloyldimethyl sodium taurate phosphate copolymer are used in combination, the content mass ratio is, for example, acrylic acid / methacrylic acid, from the viewpoint of excellent water resistance and abrasion resistance. Alkyl acid copolymer: Sodium acrylate / acryloyldimethyl sodium taurate copolymer = 1: 0.1 to 50, preferably 1: 5 to 40.

Examples of commercially available products of the component (b) include CARBOPOL 940, 941, 980, 981 (carbomer; manufactured by Lubrizol Advanced Materials Inc.), PEMULEN TR-1, TR-2, CARBOPOL POLYMER, 1342 POLYMER, 1382 POLYMER, and 13 POLYMER. / Alkyl acrylate (C10-C30)) crosspolymer; Lubrizol Advanced Materials Inc. Company), SIMULGEL EG (sodium acrylate / acryloyl dimethyl taurate phosphate copolymer; manufactured by SEPPIC), ACULYN 22 (alkyl acrylate / methacrylic acid steareth-20 copolymer, manufactured by ROHM GMBH) and the like.

The content of the component (b) in the present invention is not particularly limited, but it is preferably 0.001 to 2%, more preferably 0.001 to 1%, and 0.01 to 0.8% in the emulsified cosmetic. It is more preferable to be present, and 0.01 to 0.5% is particularly preferable. Within this range, excellent stability and water resistance and abrasion resistance can be imparted while maintaining a good feeling during use.

In the manufacturing process, the component (b) can be contained in the aqueous phase by dissolving and dispersing the component (b) in the aqueous phase.

The content mass ratio (a) / (b) of the component (a) and the component (b) in the present invention is not particularly limited, but is preferably 0.05 to 20, and preferably 0.1 to 10. More preferable. Within this range, the stability of the preparation and the water resistance and abrasion resistance of the resulting coating film will be better.

In the present invention, it is preferable that the component (c) further contains a metal oxide and / or a plate-like powder (hereinafter, also simply referred to as the component (c)). By compounding the component (c) metal oxide and / or plate-like powder, water resistance, abrasion resistance, and formulation stability are further improved. The component (c) can be added to either the water phase or the oil phase, but it is particularly preferable to add it to the oil phase. This is because the component (a) can be stably blended in the oil phase by blending it in the oil layer, and the formulation stability is further improved.

The component (c) metal oxide used in the present invention is a metal oxide usually used in cosmetics, such as spherical, plate-like or needle-like shape, smoke-like particles, fine particles, particle size such as pigment grade, and porosity. There is no particular limitation on the particle structure such as quality and non-porous property, and any one can be used. Examples of the metal oxide as the component (c) include zinc oxide, titanium oxide, cerium oxide, zirconium oxide, and iron oxide. These can be used alone or in combination of two or more. From the viewpoint of improving water resistance and abrasion resistance, zinc oxide or titanium oxide is preferable, and zinc oxide is particularly preferable. The particle size of the metal oxide is not particularly limited, but from the viewpoint of stability of the component (a) in the oil phase, the average primary particle size is preferably in the range of 1 to 100 nm. In the present invention, the average particle size means the average value of the width and length of the powder measured in a dispersed state in water using a laser diffraction / scattering type particle size distribution measuring apparatus (average of 50% cumulative volume). Particle size value). Further, if necessary, a known method using a silicone compound, a fluorine compound, a metal soap, collagen, a hydrocarbon, a higher fatty acid, lecithin, a higher alcohol, an ester, a wax, a wax, a surfactant, a trialkoxysilane, or the like. Surface treatment may be performed by using, or a composite of these may be used.

The component (c) plate-like powder used in the present invention can be mixed in either the water phase or the oil phase, but it is particularly preferable to mix it in the oil phase. It is not particularly limited as long as it is a plate-like powder usually used in cosmetics, and examples thereof include mica, sericite, boron nitride, synthetic phlogopite, synthetic sericite, aluminum silicate, magnesium silicate, barium sulfate, and silica. Aluminum magnesium oxide, cleaved talc, plate-like silicic acid, plate-like kaolin, plate-like boron nitride, plate-like powders such as cellulose, mica titanium, bismuth oxychloride, and the like, and one or more of these may be mentioned. Can be used in combination. Among these, it is preferable to use sericite or boron nitride, and more preferable to use sericite, from the viewpoint of emulsion stability when the component (a) is mixed in the oil phase. The average particle size of the plate-like powder of the component (c) used in the present invention is not particularly limited, but it is preferably 1 to 100 μm, more preferably 1 to 50 μm. Further, the aspect ratio is preferably 5 to 500, more preferably 10 to 100. In the present invention, the average particle size means the average value of the width and length of the powder measured in a dispersed state in water using a laser diffraction / scattering type particle size distribution measuring apparatus (average of 50% cumulative volume). Particle size value). In addition, these plate-like powders include fluorine compounds, silicone compounds, metal soaps, lecithin, hydrogenated lecithin, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, waxes, surfactants, trialkoxy. The surface treatment may be performed using one kind or two or more kinds of silane and the like.

Examples of the silicone-based compound used for the surface treatment of the component (c) include low-polymerization degree dimethylpolysiloxane, high-polymerization degree dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, and other chain-like silicones, silicones. Amino-modified silicones such as phosphoric acid triester and amodimethicone, modified silicones such as alkyl-modified silicone and alkoxy-modified silicone, silicone resins such as trimethylsiloxysilicic acid and acrylate silicone, silicone rubbers, partially or fully crosslinked organopolysiloxane. And various silylating agents.

Trialkoxyalkylsilane in trialkoxyalkylsilane treatment is a compound in which three alkoxy groups and one alkyl group are bonded to a silicon atom, and the alkoxy group reacts with a hydroxyl group on the powder surface to form a powder surface. Is a compound that chemically coats. The alkoxy group in the trialkoxyalkylsilane is preferably methoxy, ethoxy, propoxy or the like having 1 to 3 carbon atoms. Further, the alkyl group in the trialkoxyalkylsilane is preferably a hexyl group, an octyl group, a decyl group, an octadecyl group or the like, which is an alkyl group having 6 to 18 carbon atoms. Such trialkoxyalkylsilanes include, for example, trimethoxyhexylsilane, trimethoxyoctylsilane, trimethoxydecylsilane, trimethoxyoctadecylsilane, triethoxyhexylsilane, triethoxyoctylsilane (triethoxycaprylylsilane), triethoxyoctylsilane. Examples include decylsilane and triethoxyoctadecylsilane.

The amount of surface treatment is preferably 0.5 to 30% by mass, more preferably 1 to 20% by mass based on the powder.

The component (c) used in the present invention can be used in combination of one or two kinds of metal oxide and plate-like powder, but from the viewpoint of the emulsion stability of the component (a) in the oil phase, It is preferable to use the seeds in combination, and it is more preferable to use the metal oxide and the plate-like powder in combination. When the metal oxide and the plate-like powder are used in combination, the mixing ratio of the two is not particularly limited, but for example, metal oxide: plate-like powder = 1: 0.1 to 10 (mass ratio) Is. A particularly preferred combination is surface-treated zinc oxide and surface-treated sericite, surface-treated zinc oxide and surface-treated sericite. When using two types in combination, use a composite such as titanium dioxide coated mica, titanium dioxide coated synthetic phlogopite, titanium dioxide coated bismuth oxychloride, iron oxide mica titanium, titanium dioxide coated glass powder, etc. Good.

The content of the component (c) in the present invention is not particularly limited, but is preferably 1 to 30% in the emulsified cosmetic, and particularly preferably 5 to 20%. Within this range, a formulation having excellent water resistance, abrasion resistance and stability can be provided.

In the present invention, it is preferable to further include the component (d) inulin fatty acid ester (hereinafter, also simply referred to as the component (d)). The inclusion of the inulin fatty acid ester improves the adhesion to the skin, thereby further improving water resistance, abrasion resistance, usability (especially non-lubricity), and formulation stability. The component (d) can be added to either the water phase or the oil phase, but it is particularly preferable to add it to the oil phase. By compounding in the oil layer, the thickening effect of the oil phase further improves water resistance, abrasion resistance, usability (especially non-lubrication), and formulation stability.

The component (d) inulin fatty acid ester used in the present invention is an ester compound of a linear or branched saturated or unsaturated fatty acid having 8 to 32 carbon atoms and inulin, and is contained in the oil phase. The inulin is not particularly limited as long as it is usually incorporated in cosmetics, but inulin is a structure composed of β-1,2-bonded furanoid fructose unit chains and having sucrose-bonded α-D-glucose at the reducing end. Of these, those having a furanoid fructose unit of about 2 to 60 are preferable. In addition, hydrolyzed inulin may be used. Ingredient (d) is preferably inulin stearate. Examples of commercially available products include Inulin stearate, Leopearl ISK2 and Leopearl ISL2 (both manufactured by Chiba Flour Milling Co., Ltd.).

The content of the component (d) in the present invention is not particularly limited, but 0.1 to 10% is preferable, and 1 to 5% is particularly preferable in the emulsified cosmetic. Within this range, the dispersibility of (a) in the oil phase is improved, and when a powder (for example, component (c)) is blended, the dispersibility of the powder is improved, resulting in improved water resistance and abrasion resistance. It is possible to provide a preparation having excellent properties and stability.

In the present invention, it is preferable that the component (e) dimethicodiethylbenzalmalonate is further included. The component (e) dimethicodiethylbenzalmalonate used in the present invention is represented by INCI (INTERNATIONAL NOMENCLATURE of COSMETIC INGREDIENTS) name as polysilicone-15, and about 7.5% of dimethicone having a chain length of about 60. It is a silicone derivative substituted with two types of substituents, and is known to improve the numerical value of SPA and PA by its synergistic effect with other UV protective agents (booster effect) while having high UV protective ability itself. Has been. In the present invention, the component (e) is preferably contained in the oil phase, functions as a component for improving the water resistance and abrasion resistance of the coating film, and contributes to the stability of the cosmetic. Examples of commercially available products include PARSOL SLX (manufactured by DSM Nutritional Products).

The content of the component (e) in the present invention is not particularly limited, but it is preferably 0.1 to 10%, particularly preferably 1 to 5% in the emulsified cosmetic. Within this range, not only a high UV protection effect can be obtained, but also the formulation stability will be good, which is preferable.

In the emulsified cosmetic of the present invention, in addition to the above components, components used in ordinary cosmetics, for example, an oily component other than the component (e), an ultraviolet absorber, a cationic surfactant, a nonionic surfactant. Agents, anionic surfactants, surfactants such as amphoteric surfactants, water, water-soluble polymers other than component (a) and component (b), aqueous components such as polyhydric alcohols and lower alcohols, antibacterial agents, Preservatives, pH adjusters, cooling agents, powders other than the component (c), cosmetic ingredients such as vitamins and amino acids, fragrances and the like can be appropriately contained within a range that does not impair the effects of the present invention.

The emulsified cosmetic composition of the present invention can be embodied in various forms such as liquid form, emulsion form, cream form, solid form, gel form and paste form. Further, the cosmetic of the present invention, the water-in-oil emulsion system, oil-in-water emulsion system, etc., the dosage form is not particularly limited, from the viewpoint of fresh usability, the oil-in-water emulsion having a lower water resistance Since the mold is required to have improved water resistance, an oil-in-water type emulsion system is preferable. That is, a preferred embodiment of the present invention is an oil-in-water emulsion cosmetic. Skincare cosmetics such as emulsions, creams, beauty essences, lip balms, sunscreens, foundations, makeup bases, blushers, eye shadows, lipsticks, makeup cosmetics such as lip glosses, hair rinses, hair creams, hair styling products, etc. It can be carried out with various cosmetics such as cosmetics for scalp or hair.

Moreover, one form of the present invention is an emulsified sunscreen cosmetic. Moreover, the other form of this invention further contains a ultraviolet absorber. By improving the water resistance and abrasion resistance of the cosmetic coating film, it becomes difficult for the ultraviolet absorbent to fall off by sweat or water, and it is possible to provide a sunscreen having a high ultraviolet protection ability. The ultraviolet absorber can be used without particular limitation, as long as it is usually used in sunscreen cosmetics. Examples of the ultraviolet absorber include ethylhexyl methoxycinnamate, 2- [4- (diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester, ethyl paraaminobenzoate, benzophenone-1, benzophenone-3, benzophenone-6, benzophenone. -9,2,4,6-Tris [4- (2-ethylhexyloxycarbonyl) anilino] -1,3,5-triazine, dioctylbutamidotriazone, 4-tert-butyl-4'-methoxy-dibenzoyl Methane, 2,4-bis {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl)-(1,3,5) -triazine, 2,2 ' -Methylenebis [6- (2H-benzotriazol-2yl) -4- (1,1,3,3-teto Methylbutyl) phenol], polysilicone-15 and the like, may be used alone or in combination. Among them, ethylhexyl methoxycinnamate, 2- [4- (diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester, 4-tert-butyl-4′-methoxy-dibenzoylmethane, 2,4-bis {[4- ( 2-Ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl)-(1,3,5) -triazine, polysilicone-15 are preferred, ethylhexyl methoxycinnamate, 2- [4 -(Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester, 2,4-bis {[4- (2-ethyl-hexyloxy) -2-hydroxy] -phenyl} -6- (4-methoxyphenyl)-( 1,3,5) -triazine is more preferred. The content of the ultraviolet absorber is, for example, 1 to 10% in the emulsion cosmetic.

Moreover, examples of the method of using the emulsified cosmetic of the present invention include a method of using it with hands, fingers, and cotton, a method of impregnating it with a non-woven fabric, a method of using it as a spray agent, and an aerosol agent.

The present invention also provides a method for producing an emulsion cosmetic containing (a) an oil phase containing a water-soluble cationic polymer and (b) an aqueous phase containing a water-soluble anionic polymer. Regarding the emulsification method, a method well known in the art can be appropriately referred to.

Hereinafter, the present invention will be described in more detail with reference to Examples, Test Examples and the like, but the present invention is not limited to these Examples and the like.

[Example 1 (Inventive Products 1 to 14) and Comparative Examples 1 to 4: Emulsified Cosmetics]
An emulsified cosmetic composition was prepared by the composition shown in Table 1 and the following production method. The resulting emulsified cosmetics were evaluated for water resistance, abrasion resistance and sensory evaluation by the following methods, and the results are shown in Tables 1 to 3.

(Note 1) SIMULGEL EG (manufactured by SEPPIC) (37.5% mixture of sodium acrylate / sodium acryloyl dimethyl taurate phosphate copolymer. Content in the formulation indicates the amount of pure compound)
(Note 2) PEMULENE TR-1 (manufactured by Lubrizol Advanced Materials Inc.)
(Note 3) ACULYN22 (manufactured by ROHM GMBH) (30% aqueous solution of alkyl acrylate / alkyl methacrylate / polyoxyethylene stearyl ether methacrylic acid (20 EO) copolymer. The content in the formulation is pure compound. Indicates quantity)
(Note 4) CARBOPOL 980 (manufactured by Lubrizol Advanced Materials Inc.)
(Note 5) MERQUAT 740 POLYMER (manufactured by Nippon Lubrizol Co., Ltd., dimethyldiallylammonium chloride / acrylamide copolymer, 43% aqueous solution. Content in the formulation indicates the amount of pure compound)
(Note 6) Leopard ISK2 (manufactured by Chiba Flour Mills)
(Note 7) TINOSORB S (manufactured by BASF)
(Note 8) Ubinal A PLUS GRANULAR (manufactured by BASF)
(Note 9) PARSOL SLX (manufactured by DSM NUTRITIONAL PRODUCTS)
(Note 10) NIKKOL HCO-40 (manufactured by Nippon Surfactant Industry Co., Ltd.)
(Note 11) Catinal HC-100 (manufactured by Toho Chemical Co., Ltd.)
(Note 12) JAGUAR C-14S (C) (manufactured by SOLVAY)

(Production method)
A: Components 1 to 3 are uniformly dispersed at 70 ° C.
B: Components 10 to 15 are uniformly dissolved at 70 ° C.
C: Components 16 to 22 are mixed and dispersed.
D: Put C in B and disperse uniformly.
E: Add D to A and emulsify at 70 ° C.
Cool F: E to room temperature.
Components 4 to 9 were mixed with G: F to obtain an oil-in-water emulsion cosmetic.

(Evaluation method: (a) Water resistance evaluation)
Each sample described above was applied to a PMMA plate (HELPLATE HD6 manufactured by Labsphere Co., Ltd.) at 2 mg / cm ² and then allowed to stand for 20 minutes. SPF measurement using an SPF analyzer (UV-2000S manufactured by Labsphere Co.) was performed, and a water bath was used. The pre-SPF value was measured. Next, a water bath was performed. The water bath conditions were such that the sample was attached to the side of a container storing 2 L of water at 35 ° C., and the water in the container was stirred with a paddle mixer at 300 rpm for 5 minutes. After the completion of the water bath, it was allowed to stand and dry for 20 minutes, and then the SPF value after the water bath was measured using the SPF analyzer. Based on the obtained SPF values before and after the water bath, the water resistance was evaluated by 4 grades according to the following (a) evaluation criteria.
(A) 4-step evaluation criteria (evaluation): (judgment)
(SPF measurement value after water bath) / (SPF measurement value before water bath) = 0.7 or more: ◎
(SPF measured value after water bath) / (SPF measured value before water bath) = 0.5 or more: ○
(SPF measurement value after water bath) / (SPF measurement value before water bath) = 0.3 or more: △
(SPF measurement value after water bath) / (SPF measurement value before water bath) = less than 0.3: x.

(Evaluation method: (b) Evaluation of abrasion resistance)
Each sample was applied to a PMMA plate at 2 mg / cm ^{2 and then} allowed to stand for 20 minutes. SPF measurement using an SPF analyzer (UV-2000S manufactured by Labsphere) was carried out to measure the SPF value before rubbing. Then rub. Friction conditions are Texture Analyzer TA. The towel cloth was fixed to the tip of the jig using XT PLUS (manufactured by Eiko Seiki Co., Ltd.), and a fixed load was applied to move the towel cloth left and right five times. After the completion of rubbing, the SPF value after rubbing was measured using the SPF analyzer. Based on the obtained SPF values before and after rubbing, the rubbing resistance was evaluated by 4 grades according to the following (b) evaluation criteria.
(B) 4-step evaluation criteria (evaluation): (judgment)
(SPF measured value after friction) / (SPF measured value before friction) = 0.7 or more: ◎
(Measured value of SPF after friction) / (measured value of SPF before friction) = 0.5 or more: ○
(Measured value of SPF after friction) / (measured value of SPF before friction) = 0.3 or more: △
(Post-friction SPF measurement value) / (Pre-friction SPF measurement value) = less than 0.3: x.

(Evaluation method: (c) No stickiness)
Twenty professional evaluation panels applied each of the above-mentioned samples to the forearm, and the stickiness at the time of use was evaluated by 4 grades according to the following (c) evaluation criteria and judged.
(C) 4-step evaluation criteria (evaluation): (judgment)
No stickiness at all: 4 points Almost no stickiness: 3 points There is stickiness: 2 points Very sticky: 1 point Judgment based on the following evaluation criteria from the average value of the evaluation scores according to the above evaluation criteria did.
<Criteria>:
[Average score]: [Judgment]
3.25 or above: ◎
2.5 or more and less than 3.25: ○
1.75 or more and less than 2.5: △
Less than 1.75: x.

(Evaluation method: (d) No stickiness)
Twenty professional evaluation panels applied each of the above-mentioned samples to the forearm, and the slimyness during use was evaluated by 4 grades according to the following (d) evaluation criteria and judged.
(D) 4-step evaluation criteria (evaluation): (judgment)
There is no slimyness: 4 points Almost no slimyness: 3 points There is slimyness: 2 points There is very slimyness: 1 point From the average value of the scores evaluated by the above evaluation criteria, the following judgment criteria It was judged based on.
<Criteria>:
[Average score]: [Judgment]
3.25 or above: ◎
2.5 or more and less than 3.25: ○
1.75 or more and less than 2.5: △
Less than 1.75: x.

(Evaluation method: (e) Freshness)
Each of the above-mentioned samples was applied to the forearm by 20 professional evaluation panels, and the freshness at the time of use was evaluated by 4 grades according to the following (e) evaluation criteria.
(E) 4-step evaluation criteria (evaluation): (judgment)
Very fresh: 4 points, a little freshness: 3 points, a little freshness: 2 points, no freshness: 1 point From the average value of the evaluation criteria, the following judgment It was judged based on the standard.
<Criteria>:
[Average score]: [Judgment]
3.25 or above: ◎
2.5 or more and less than 3.25: ○
1.75 or more and less than 2.5: △
Less than 1.75: x.

(Evaluation method: (f) Formulation stability)
Each of the samples was placed in a glass standard bottle, stored in a constant temperature bath at 50 ° C. for 1 month, and the state after 1 month was observed, and the state was evaluated using the following (f) four-stage determination criteria.
(F) Four-stage judgment criteria (evaluation): (judgment)
No change in appearance is observed: ◎
Almost no change in appearance: ○
Some separation and spots are seen: △
Separation and spots are seen: ×.

As is clear from the results of Tables 1 to 3, the emulsified cosmetics of the products 1 to 14 of the present invention have high water resistance and high water resistance by blending the water-soluble anionic polymer and the water-soluble cationic polymer in separate phases. It was an emulsified cosmetic having frictional properties and being excellent in freshness at the beginning, and no stickiness or sliminess on the back skin. Furthermore, the emulsified cosmetics of the products 1 to 14 of the present invention were excellent in formulation stability. The products 7 to 10 of the present invention are obtained by changing the content ratio (a) / (b) of the components (a) and (b) from the product 1 of the present invention, and the product 11 of the present invention is the product of the present invention. It is a formulation in which the compounding amounts of the components (a) and (b) are changed from 1. On the other hand, Comparative Examples 1, 2, and 3 in which the components (a) and (b) were not blended did not have water resistance or abrasion resistance, and resulted in the feeling of stickiness or sliminess. In Comparative Example 4 in which a water-soluble anionic polymer was blended in the oil phase and a water-soluble cationic polymer was blended in the water phase, the water-soluble cationic polymer formed aggregates with the water-soluble anionic polymer in the formulation, resulting in formulation stability. It was inferior.

Example 2: Cream (oil-in-water type)
(Ingredient) (%)
1. N-stearoyl-N-methyltaurine sodium 0.1
2. Phospholipid / cholesterol mixture 2.2
3. Glycerin 6.5
4. Mica (plate-like powder, average particle size 5-12 μm) 3.0
5. Polyhydroxystearic acid 0.5
6. Dimethyldiallylammonium chloride / acrylamide copolymer (Note 13) 0.045
7. Propylene glycol dicaprate 5.0
8.1,3-butylene glycol 5.0
9. Diglycerin 1.0
10. Inulin stearate (Note 6) 2.0
11. Cetyl ethylhexanoate 3.0
12. Ethylhexyl methoxycinnamate 5.0
13. Dimethicodiethylbenzalmalonate (Note 9) 2.0
14.2- [4- (Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester ester (Note 8)
1.0
15. Rice germ oil 0.02
16. Tocopherol 0.01
17. Purified water remaining 18. Xanthan gum 0.1
19. Carbomer (Note 4) 0.3
20. Sodium hydroxide suitable amount 21. Ethanol 6.5
22. Preservative appropriate amount 23. Trehalose 0.05
24. Seaweed extract 0.01
25. Citric acid 0.02
26. Sodium monohydrogen phosphate 0.15
27. Hydroxyproline 0.05
28. Kawamura Artemisia extract 0.05
(Note 13) MERQUAT 550PR (manufactured by Japan Lubrizol Co., Ltd., dimethyldiallylammonium chloride / acrylamide copolymer, 9% aqueous solution. The content in the formulation indicates the amount of pure compound).
(Production method)
A: Components (1) to (3) and (17) are heated to 70 ° C. and mixed uniformly.
B: Components (4) to (16) are heated to 80 ° C. and mixed uniformly.
C: Add B to A and stir.
D: The components (18) to (28) heated to 70 ° C. are added to C and emulsified.
E: D was cooled to room temperature with stirring to give a cream.

The cream of Example 2 is excellent in water resistance and abrasion resistance, is excellent in feeling of use, can sufficiently exert the ultraviolet ray protective function of the ultraviolet ray absorbing agent and the ultraviolet ray scattering agent, and is also excellent in emulsion stability. It was cosmetics.

Example 3: Shaking type sunscreen (water in oil type)
(Ingredient) (%)
1.2,4-bis-[{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] -6- (4-methoxyphenyl) -1,3,5-triazine (Note 7)
1.5
2. Paramethoxycinnamic acid ethyl ester (Paramethoxycinnamic acid ethylhexyl)
7.5
3. Inulin stearate (Note 6) 1.5
4.2- [4- (Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester (Note 8)
3.0
5. Diethylhexyl succinate 3.5
6. Dimethicodiethylbenzalmalonate (Note 9) 3.0
7. Methyl polysiloxane (Note 14) 0.5
8. Safflower oil 0.1
9. Silylation treated silicic acid anhydride 4.0
10. Zinc oxide 7.0
11. Mica (plate-like powder, average particle size 5-12 μm) 2.0
12. Polyhydroxystearic acid 1.0
13. Dimethyldiallylammonium chloride / acrylamide copolymer (Note 5)
0.1
14. Cyclomethicone 4.0
15. Light isoparaffin 4.0
16. Ethanol 7.0
17. Preservative appropriate amount 18. Perfume proper amount 19. Purified water remaining 20. Acrylic acid / alkyl methacrylate copolymer (Note 2) 0.05
21. Hydrolyzed hyaluronic acid 0.01
22. Hydrolyzed collagen 0.01
(Note 14) KF-96-10CS (Shin-Etsu Chemical Co., Ltd.)
A sunscreen (shaking) was prepared by the following production method.
(Production method)
A: Components (1) to (8) are heated to 80 ° C. and mixed uniformly.
B: The components (9) to (15) are uniformly roller mixed.
C: Add B to A and mix uniformly.
D: Add components (16) to (18) to C and mix them uniformly.
E: Add (19) to (22) to D and emulsify.
A shaking type sunscreen (water in oil type) was obtained by cooling F: E to room temperature.

The sunscreen agent (shaking) of Example 3 is excellent in water resistance and abrasion resistance, is excellent in feeling of use, and can sufficiently exert the ultraviolet protection function of the ultraviolet absorber and the ultraviolet scatterer. Further, the cosmetic was excellent in emulsion stability.

Example 4: Sunscreen (cream) (water-in-oil type)
(Ingredient) (%)
1. Zinc oxide 15
2. Titanium oxide 2
3. PEG-9 Polydimethylsiloxyethyl dimethicone (Note 15)
0.5
4. O- [2-hydroxy-3 (trimethylammonio) propyl] guar chloride (Note 12)
0.1
5. Cyclomethicone 6.0
6. Disteardimonium Hectorite 1.0
7. Ethylhexyl paramethoxycinnamate 5.0
8. Inulin stearate (Note 6) 1.0
9.2- [4- (Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester (Note 8)
2.0
10. Light paraffin 4.0
11. Isotridecyl isononanoate 2.0
12. Cetyl ethylhexanoate 1.0
13. Tocopherol 0.05
14. Apricot kernel oil 0.01
15. Cyclomethicone 16. PEG-9 Polydimethylsiloxyethyl dimethicone (Note 15)
0.5
17. Dimethicodiethylbenzalmalonate (Note 9) 3.0
18. Methyl siloxane network polymer (Note 16) 3.0
19. Perfume proper amount 20. Disodium edetate Suitable amount 21. Purified water 14
22. Alkyl acrylate / alkyl methacrylate / methacrylic acid polyoxyethylene stearyl ether (20EO) copolymer (Note 3)
0.5
23. Hawthorn extract 0.01
24. Grape leaf extract 0.01
25. Concentrated glycerin 1.0
26. Ethanol 15
(Note 15) KF-6028P (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 16) TOSPEARL 3000A (manufactured by Momentive Performance Materials Japan)
A sunscreen (cream) was prepared by the following production method.
(Production method)
A: Components (1) to (6) are uniformly roller mixed.
B: Components (7) to (19) are heated to 80 ° C. and uniformly mixed.
C: Add B to A and mix uniformly.
D: Add components (20) to (26) and mix uniformly.
E: Add D to C and emulsify.
F: E was returned to room temperature to obtain a sunscreen (cream).

The sunscreen agent (cream) of Example 4 is excellent in water resistance and abrasion resistance, is excellent in feeling of use, and can sufficiently exert the ultraviolet protection function of the ultraviolet absorber and the ultraviolet scatterer. The cosmetic was excellent in emulsion stability.

Example 5: Base for makeup (water-in-oil type)
(Ingredient) (%)
1. Zinc oxide 15
2. Silicon processing ultramarine 0.04
3. Silicon / talc / yellow iron oxide mixture 0.03
4. Nylon 1.0
5. (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 17)
0.3
6. O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride (Note 18)
0.3
7. Cyclomethicone 6.0
8. Ethylhexyl paramethoxycinnamate 3.0
9.2- [4- (Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester (Note 8)
2.0
10. Light paraffin 4.0
11. Inulin stearate (Note 6) 1.0
12. Diethylhexyl succinate 3.0
13. Cyclomethicone 14. PEG-9 Polydimethylsiloxyethyl dimethicone (Note 15)
0.5
15. Dimethicodiethylbenzalmalonate (Note 9) 3.0
16. Methyl siloxane network polymer (Note 16) 3.0
17. Perfume appropriate amount 18. Methylphenyl polysiloxane 0.5
19. Disodium edetate Suitable amount 20. Purified water 14
21. Sodium acrylate / acryloyldimethyl sodium taurate copolymer (Note 1)
0.8
22. Methyl gluceth-10 0.5
23. Lysine dilauroyl glutamate Na 0.2
24. Humus soil extract 1.0
25. Concentrated glycerin 1.0
26. Ethanol 15
(Note 17) KP-578P (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 18) Catinal HC-200 (manufactured by Toho Chemical Co., Ltd.)
A makeup base was prepared by the following production method.
(Production method)
A: Components (1) to (7) are uniformly roller mixed.
B: Components (8) to (18) are heated to 80 ° C. and mixed uniformly.
C: Add B to A and mix uniformly.
D: Add components (18) to (26) and mix uniformly.
E: Add D to C and emulsify.
F: E was returned to room temperature to obtain a makeup base.

The cosmetic base of Example 5 was excellent in water resistance and abrasion resistance, was excellent in usability, and was able to fully exert the ultraviolet protection function of the ultraviolet absorber and the ultraviolet scatterer, and the emulsion stability. It was an excellent cosmetic.

Example 6: Aerosol type sunscreen (oil-in-water type)
(Ingredient) (%)
1. Propylene glycol dicaprate 12
2. Inulin stearate (Note 6) 1.0
3. Dextrin isostearate (Note 19) 0.5
4. Zinc oxide 6.0
5. Polyhydroxystearic acid 0.3
6. O- [2-Hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride (Note 11)
0.2
7. Paramethoxycinnamic acid ethyl ester (Paramethoxycinnamic acid ethylhexyl)
7.0
8.2- [4- (Diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester (Note 8)
3.0
9.2,4-Bis-[{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] -6- (4-methoxyphenyl) -1,3,5-triazine (Note 7)
1.0
10. Dimethicodiethylbenzalmalonate (Note 9) 1.0
11. Propylene glycol dicaprate 8.0
12. Alkyl benzoate (C12-C15) 1.0
13. Methyl siloxane network polymer (Note 16) 8.5
14. PEG-9 Polydimethylsiloxyethyl dimethicone (Note 15)
0.5
15. O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride (Note 20)
0.3
16. Dimethyldiallylammonium chloride / acrylamide copolymer (Note 5)
0.3
17. Mica (plate-like powder, average particle size 5 to 12 μm) 4.0
18. Natural vitamin E 0.05
19. Dipropylene glycol 1.0
20. Ethanol 25
21. Purified water remaining 22. Sodium acrylate / acryloyldimethyl sodium taurate copolymer 0.8
23. Perfume proper amount (* 19) Unifilma HVY (Chiba Flour Milling Co.)
(Note 29) Catinal LC-100 (manufactured by Toho Chemical Co., Ltd.)
An aerosol-type sunscreen agent was prepared by the following production method.
(Production method)
A: Components (1) to (6) are dispersed with three rollers.
B: Components (7) to (17) are uniformly dissolved at 70 ° C.
C: Add B to A and mix uniformly.
D: Add (18) to (23) to C and emulsify.
After filling 6 g of the stock solution obtained in E: D into an aluminum pressure resistant container, fixing the valve, and filling the pressure resistant container with the propellant (LPG 0.15: 14 g) through the valve, an aerosol type sunscreen agent was obtained. It was

The aerosol-type sunscreen preparation of Example 6 is excellent in water resistance and abrasion resistance, is excellent in usability, and can sufficiently exert the ultraviolet protection function of the ultraviolet absorber and the ultraviolet scatterer, and is also emulsified. The cosmetic was excellent in stability.

Example 7: Hair cosmetic (oil-in-water type)
(Ingredient) (%)
1. Purified water remaining 2. PG 2.0
3. Glycerin 1.0
4. Sodium edetate 0.01
5. Sodium acrylate / acryloyldimethyl sodium taurate copolymer (Note 1)
0.5
6. Methyl polysiloxane (Note 21) 10.0
7. Light liquid paraffin 5.0
8. Dextrin isostearate (Note 19) 1.0
9. Ethyl oleate 1.0
10. Polyoxyethylene hydrogenated castor oil (Note 10) 1.0
11. Fragrance 0.5
12. Mica (plate-like powder, average particle size 5 to 12 μm) 4.0
13. O- [2-Hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride (Note 11)
0.2
14. Sodium hydroxide 0.05
15. Purified water 2.0
16. Ethanol 10
17. Purified water 5.0
18. Acrylic acid / alkyl methacrylate copolymer (Note 2) 0.3
19. L-serine 0.05
20. Glycylglycine 0.05
(Note 21) KF-96-6CS (Shin-Etsu Chemical Co., Ltd.)
Hair cosmetics were prepared by the following production method.
(Production method)
A: Components (1) to (5) are uniformly mixed.
B: Components (6) to (13) are uniformly dissolved.
C: Add B to A and emulsify.
D: Add (14) to (15) to C and mix.
E: Add (16) to (20) to D and mix.
A cosmetic for hair was obtained by filling F: E in a dispenser container.

The hair cosmetic composition of Example 7 was a cosmetic composition having excellent water resistance and abrasion resistance, a good feel, and excellent emulsion stability.

As described above in detail, the water-soluble cationic polymer is contained in different phases such as the oil phase and the water-soluble anionic polymer, whereby the water resistance and the abrasion resistance of the coating film are improved, and good use is achieved. An emulsified cosmetic having a feeling is provided.

This application is based on Japanese Patent Application No. 2018-206251 filed on Nov. 1, 2018, the disclosure of which is incorporated by reference in its entirety.

Claims

An emulsion cosmetic containing (a) an oil phase containing a water-soluble cationic polymer and (b) an aqueous phase containing a water-soluble anionic polymer.
The emulsified cosmetic composition according to claim 1, which comprises (c) at least one of a metal oxide and a plate-like powder.
(D) The emulsified cosmetic composition according to claim 1 or 2, which contains an inulin fatty acid ester.
The emulsified cosmetic composition according to any one of claims 1 to 3, wherein the content mass ratio (a) / (b) is 0.05 to 20.
(A) The water-soluble cationic polymer is dimethyldiallylammonium chloride / acrylamide copolymer, O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethyl cellulose chloride, and O- [2-hydroxy-3 chloride. The emulsified cosmetic composition according to any one of claims 1 to 4, which is one or more selected from the group consisting of-(trimethylammonio) propyl] guar gum.
(B) The water-soluble anionic polymer is one or more selected from the group consisting of carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, and sodium acrylate / acryloyldimethyl sodium taurate phosphate copolymer. The emulsified cosmetic composition according to any one of claims 1 to 5.
The emulsified cosmetic according to any one of claims 1 to 6, which is an oil-in-water emulsified cosmetic.
The emulsion cosmetic according to any one of claims 1 to 7, which comprises (e) dimethicodiethylbenzalmalonate.
A method for producing an emulsified cosmetic containing (a) an oil phase containing a water-soluble cationic polymer and (b) an aqueous phase containing a water-soluble anionic polymer.