Oil-based emulsions in water

Abstract

To provide an oil-in-water emulsified composition which maintains resilient gel feeling and freshness inherent to gel, and furthermore has good adhesion to the skin.SOLUTION: An oil-in-water emulsified composition is provided, containing the following component (A), (B) and (C): (A) at least one selected from the group consisting of a first water-soluble polymer containing a structural unit derived from at least one selected from the group consisting of a (meth)acrylic acid and a (meth)acrylic acid alkyl ester, a structural unit derived from at least one selected from the group consisting of a polyoxyalkylene alkyl ether itaconate and a polyoxyalkylene alkyl ether (meth)acrylate and a hydrophobic modified polyether urethane; (B) a second water-soluble polymer including a structural unit derived from at least one selected from the group consisting of a (meth)acrylic acid and a (meth)acrylic acid alkyl ester, which is different from the first water-soluble polymer; and (C) powder on the surface of which polyglyceryl polyisostearate is disposed.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an oil-in-water emulsion composition. [Background technology]

[0002] The unique texture of bouncy, moderately elastic gels is popular and highly appealing in cosmetics for a wide variety of consumer preferences. For this reason, various studies have been conducted. For example, Patent Document 1 discloses an elastic gel composition containing a hydrophobically modified polyether urethane in an oil-in-water emulsion. Patent Document 2 also discloses a gel cosmetic containing a specific polymer and two surfactants with different HLB values. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-88868 [Patent Document 2] Japanese Patent Publication No. 2020-83781 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the technology described in Patent Document 1, when the gel composition contains powder, the elastic gel feeling is lost compared to when the gel does not contain powder, and the freshness characteristic of gels is sometimes reduced. In addition, cosmetics are generally required to have good adhesion to the skin.

[0005] An object of one aspect of the present invention is to provide an oil-in-water emulsion composition that has good adhesion to the skin while maintaining the elastic gel feel and the freshness characteristic of gel. [Means for solving the problem]

[0006] Specific means for solving the above problems are as follows, and the present invention includes the following aspects. [1] The following ingredients (A) to (C): (A) a first water-soluble polymer including a structural unit derived from at least one selected from the group consisting of (meth)acrylic acid and a (meth)acrylic acid alkyl ester, and a structural unit derived from at least one selected from the group consisting of an itaconate polyoxyalkylene alkyl ether and a (meth)acrylic acid polyoxyalkylene alkyl ether, and at least one water-soluble polymer selected from the group consisting of hydrophobically modified polyether urethane; (B) a second water-soluble polymer that includes a structural unit derived from at least one selected from the group consisting of (meth)acrylic acid and a (meth)acrylic acid alkyl ester, and is different from the first water-soluble polymer; (C) a powder having polyglyceryl polyisostearate disposed on its surface; An oil-in-water emulsion composition comprising:

[0007] [2] The oil-in-water emulsion composition according to [1], wherein the content of the component (A) is 0.05% by mass or more and 10% by mass or less.

[0008] [3] The oil-in-water emulsion composition according to [1] or [2], wherein the content of the component (C) is 0.5% by mass or more and 50% by mass or less.

[0009] [4] The oil-in-water emulsion composition according to any one of [1] to [3], wherein the mass ratio of the component (A) to the component (B) is 0.1 or more and 500 or less.

[0010] [5] The oil-in-water emulsion composition according to any one of [1] to [4], wherein the mass ratio of the component (A) to the component (C) is 0.001 or more and 1 or less.

[0011] [6] The oil-in-water emulsion composition according to any one of [1] to [5], wherein the polyglyceryl polyisostearate of component (C) comprises at least one selected from the group consisting of polyglyceryl-2 tetraisostearate and polyglyceryl-2 triisostearate.

[0012] [7] The oil-in-water emulsion composition according to any one of [1] to [6], further comprising, as component (D), at least one surfactant selected from the group consisting of a nonionic surfactant containing at least one surfactant selected from the group consisting of polyoxyethylene hydrogenated castor oil, polyoxyethylene sugar fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, and polyoxyethylene glycol fatty acid ester, and having an HLB value of 14.0 or more, and at least one amphoteric surfactant selected from the group consisting of lecithin and hydrogenated lecithin.

[0013] [8] The oil-in-water emulsion composition according to [7], wherein the mass ratio of the component (C) to the component (D) is 1 or more and 100 or less.

[0014] [9] The oil-in-water emulsion composition according to [7] or [8], wherein the component (D) comprises at least one selected from the group consisting of polyoxyethylene sugar fatty acid esters and polyoxyethylene sorbitan fatty acid esters.

[0015]

[10] The oil-in-water emulsion composition according to any one of [7] to [9], wherein the component (D) contains PEG-20 methyl glucose sesquistearate.

[0016]

[11] The oil-in-water emulsion composition according to any one of [1] to

[10] , wherein the hydrophobically modified polyether urethane comprises a compound represented by the following formula (I): R 1 {(OR 2 ) k OCONHR 3 [NHCOO(R 4 O) n R 5 ]h} m (I)

[0017] In formula (I), R 1 represents an m-valent hydrocarbon group having 2 to 4 carbon atoms, and R 2 and R 4 each independently represents a divalent hydrocarbon group having 2 to 4 carbon atoms, and R 3 represents a divalent hydrocarbon group having 1 to 10 carbon atoms which may have a urethane bond, and R 5 represents a hydrocarbon group having 8 to 36 carbon atoms, m is a number of 2 or more, h is a number of 1 or more, k is a number of 1 or more and 500 or less, and n is a number of 1 or more and 200 or less. [Effects of the Invention]

[0018] According to one aspect of the present invention, it is possible to provide an oil-in-water emulsion composition that has good adhesion to the skin while maintaining the elastic gel feel and the freshness characteristic of gel. DETAILED DESCRIPTION OF THE INVENTION

[0019] In this specification, the content of each component in a composition refers to the total amount of the multiple substances present in the composition when multiple substances corresponding to each component are present in the composition, unless otherwise specified. Furthermore, the upper and lower limits of the numerical ranges described in this specification can be arbitrarily selected and combined from the numerical values ​​exemplified as numerical ranges. Furthermore, numerical ranges indicated using "from" indicate ranges that include the numerical values ​​before and after "from" as the minimum and maximum values, respectively. Furthermore, (meth)acrylic acid is a general term that refers to acrylic acid, methacrylic acid, and mixtures thereof, and the same applies to other similar expressions (e.g., (meth)acrylic acid alkyl esters, etc.).

[0020] The oil-in-water emulsion composition contains the following components (A), (B) and (C). Component (A) comprises a first water-soluble polymer comprising structural units derived from at least one selected from the group consisting of (meth)acrylic acid and (meth)acrylic acid alkyl esters, and structural units derived from at least one selected from the group consisting of itaconate polyoxyalkylene alkyl ether and (meth)acrylic acid polyoxyalkylene alkyl ether, and at least one water-soluble polymer selected from the group consisting of hydrophobically modified polyether urethanes. Component (B) includes a second water-soluble polymer that contains structural units derived from at least one selected from the group consisting of (meth)acrylic acid and (meth)acrylic acid alkyl esters, and that is different from the first water-soluble polymer. Component (C) comprises a powder having polyglyceryl polyisostearate disposed on the surface thereof.

[0021] The oil-in-water emulsion composition of this embodiment can exhibit good adhesion to the skin while maintaining a bouncy gel feel and the moisturizing sensation characteristic of gels. It also has a good feel when used with reduced stickiness and can maintain good cosmetic wear. Furthermore, it can exhibit good high-temperature stability. The detailed mechanism by which the oil-in-water emulsion composition exhibits these effects is unknown, but it can be thought of, for example, as follows: By including component (B) having a structure similar to specific component (A), it is possible to achieve a bouncy gel feel and the moisturizing sensation characteristic of gels. Furthermore, the presence of component (C) as a powder component is thought to improve adhesion to the skin due to the good dispersibility of component (C), and its interaction with component (A) is thought to further enhance its good dispersibility, further improving adhesion to the skin.

[0022] The oil-in-water emulsion composition may be, for example, a gel-type cosmetic. A gel-type cosmetic exhibits a moderately bouncy elasticity. A moderately bouncy elasticity means that when a load is applied to the gel-type cosmetic by pressing it with a finger, the shape is deformed and a moderate resilience that resists the load is felt, and when the finger is released, the shape returns to its original state, and after a damped vibration, it becomes stationary (a bouncy elastic feeling). Furthermore, when the load exceeds a limit, the gel-type cosmetic exhibits a feeling that its shape changes significantly and suddenly collapses.

[0023] Component (A) The oil-in-water emulsion composition contains, as component (A), at least one water-soluble polymer compound selected from the group consisting of a first water-soluble polymer and a hydrophobically modified polyether urethane. The oil-in-water emulsion composition may contain one compound of component (A) alone or a combination of two or more compounds.

[0024] The first water-soluble polymer contains a structural unit (a) derived from at least one monomer selected from the group consisting of (meth)acrylic acid and a (meth)acrylic acid alkyl ester, and a structural unit (b) derived from at least one monomer selected from the group consisting of a polyoxyalkylene alkyl ether itaconate and a polyoxyalkylene alkyl ether (meth)acrylate. The first water-soluble polymer is obtained by copolymerizing at least one monomer (a) selected from the group consisting of (meth)acrylic acid and a (meth)acrylic acid alkyl ester with at least one monomer (b) selected from the group consisting of a polyoxyalkylene alkyl ether itaconate and a polyoxyalkylene alkyl ether (meth)acrylate. Preferably, the first water-soluble polymer is obtained by copolymerizing a monomer selected from the group consisting of acrylic acid and a (meth)acrylic acid alkyl ester with a monomer selected from the group consisting of a polyoxyalkylene alkyl ether itaconate and a polyoxyalkylene alkyl ether (meth)acrylate. The bonding pattern of the copolymer is not particularly limited and may be a block copolymer, a random copolymer, or the like. The first water-soluble polymer may further contain structural units derived from monomers other than the monomers (a) and (b), and may have a crosslinked structure. When the first water-soluble polymer contains structural units derived from other monomers, the content of the structural units derived from the other monomers may be, for example, greater than 0 mol% and less than 10 mol%, preferably 5 mol% or less, or 1 mol% or less, relative to the total structural units. Here, the content of the structural units (a) and (b) corresponds to the amount of the monomers (a) and (b) added during production.

[0025] The content ratio of the structural unit (a) to the structural unit (b) in the first water-soluble polymer is not particularly limited, and may be, for example, 0.01 or more and 100 or less in terms of the molar ratio of the structural unit (a) to the structural unit (b).

[0026] Specific examples of the first water-soluble polymer include a (meth)acrylic acid / (meth)acrylic acid alkyl ester / (meth)acrylic acid polyoxyethylene alkyl ether copolymer, a (meth)acrylic acid / (meth)acrylic acid alkyl ester / itaconic acid polyoxyethylene alkyl ether copolymer, etc. The first water-soluble polymer may also be a crosspolymer, such as a (meth)acrylic acid / (meth)acrylic acid alkyl ester / (meth)acrylic acid polyoxyethylene alkyl ether crosspolymer, or a (meth)acrylic acid / (meth)acrylic acid alkyl ester / itaconic acid polyoxyethylene alkyl ether crosspolymer. The crosslinked structure in the crosspolymer may be formed, for example, from a structural unit derived from (meth)acrylic acid and a crosslinker having an allyl group, such as pentaerythrityl allyl ether, sucrose allyl ether, or propylene allyl ether.

[0027] The number of carbon atoms in the alkyl group of the (meth)acrylic acid alkyl ester, which is one of the monomers that form the structural unit (a) of the first water-soluble polymer, may be, for example, 1 to 22, and preferably 1 to 18, 1 to 8, or 1 to 4. Specific examples of the (meth)acrylic acid alkyl ester include methyl (meth)acrylate, ethyl (meth)acrylate, and propyl (meth)acrylate.

[0028] The itaconic acid polyoxyalkylene alkyl ether or (meth)acrylic acid polyoxyalkylene alkyl ether, which is a monomer constituting the structural unit (b) of the first water-soluble polymer, is an ester compound of itaconic acid or (meth)acrylic acid with a polyoxyalkylene alkyl ether (polyalkylene glycol alkyl ether). The number of moles of oxyalkylene groups added in the polyoxyalkylene alkyl ether may be, for example, 10 to 30, preferably 12 to 25, 18 to 25, or 20 to 25. The number of carbon atoms in the oxyalkylene group moiety may be, for example, 1 to 4, preferably 2 or 3, or even 2. Specific examples of the oxyalkylene group include an oxyethylene group and an oxypropylene group, and the oxyethylene group is preferred. The number of carbon atoms in the alkyl group moiety in the polyoxyalkylene alkyl ether may be, for example, 12 to 24, preferably 16 to 22, or 18 to 22. Specific examples of itaconic acid polyoxyalkylene alkyl ethers include esters of itaconic acid and polyoxyethylene (20) stearyl ether, and esters of itaconic acid and polyoxyethylene (20) cetyl ether. Specific examples of (meth)acrylic acid polyoxyalkylene alkyl ethers include esters of acrylic acid and polyoxyethylene (20) stearyl ether, esters of methacrylic acid and polyoxyethylene (20) stearyl ether, esters of acrylic acid and polyoxyethylene (25) behenyl ether, and esters of methacrylic acid and polyoxyethylene (25) behenyl ether. Here, the number in parentheses represents the number of moles of ethylene oxide (oxyethylene group) added, and the same applies hereinafter.

[0029] Specific examples of the first water-soluble polymer include (meth)acrylic acid / (meth)acrylic acid alkyl ester / (meth)acrylic acid polyoxyethylene alkyl ether copolymers such as acrylates / polyoxyethylene methacrylate (20) cetyl ether copolymer, acrylates / polyoxyethylene methacrylate (20) stearyl ether copolymer, and acrylates / polyoxyethylene methacrylate (25) behenyl ether copolymer; (meth)acrylic acid alkyl ester / polyoxyethylene alkyl ether copolymers such as acrylates / polyoxyethylene itaconate (20) cetyl ether copolymer and acrylates / polyoxyethylene itaconate (20) stearyl ether copolymer. Examples include (meth)acrylic acid / (meth)acrylic acid alkyl ester / polyoxyethylene alkyl ether itaconate copolymer; (meth)acrylic acid / (meth)acrylic acid alkyl ester / (meth)acrylic acid polyoxyethylene alkyl ether crosspolymer such as acrylates / polyoxyethylene (20) methacrylate stearyl ether crosspolymer; and (meth)acrylic acid / (meth)acrylic acid alkyl ester / polyoxyethylene alkyl ether itaconate crosspolymer such as acrylates / polyoxyethylene (20) stearyl ether itaconate crosspolymer.

[0030] From the viewpoint of elasticity and adhesive strength, the first water-soluble polymer of component (A) preferably contains at least one selected from the group consisting of acrylates / polyoxyethylene stearyl ether methacrylate copolymer, acrylates / polyoxyethylene behenyl ether methacrylate copolymer, acrylates / polyoxyethylene stearyl ether itaconate copolymer, and acrylates / polyoxyethylene stearyl ether itaconate crosspolymer, and from the viewpoint of elasticity and adhesive strength, it is more preferable to contain at least an acrylates / polyoxyethylene behenyl ether methacrylate copolymer.

[0031] Commercially available acrylates / polyoxyethylene (20) methacrylate stearyl ether copolymers (acrylates / steareth-20 methacrylate copolymers) include, for example, the trade name Accurin® 22 (manufactured by Rohm and Haas). Commercially available acrylates / polyoxyethylene (25) methacrylate behenyl ether copolymers (acrylates / beheneth-25 methacrylate copolymers) include, for example, the trade name Accurin® 28 (manufactured by Rohm and Haas) and the trade name NOVETHIX® L-10 (manufactured by Lubrizol). Commercially available acrylates / polyoxyethylene (20) itaconate stearyl ether crosspolymers (acrylates / steareth-20 itaconate crosspolymers) include, for example, the trade name STRUCTURE2001 (manufactured by Akzo Nobel). An example of a commercially available acrylate / polyoxyethylene methacrylate (20) stearyl ether crosspolymer is Accurin 88 (manufactured by Rohm and Haas).

[0032] The first water-soluble polymer may be neutralized with a basic substance before use. The basic substance may be an organic base or an inorganic base. Examples of organic bases include alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, and triisopropanolamine; and basic amino acids such as L-arginine. Examples of inorganic bases include sodium hydroxide, potassium hydroxide, and magnesium hydroxide. These basic substances may be added in an amount sufficient to neutralize the first water-soluble polymer, and the amount of basic substance added may be, for example, 20% by mass or more and 90% by mass or less relative to the first water-soluble polymer.

[0033] The hydrophobically modified polyether urethane in component (A) may contain, for example, a compound represented by the following formula (I). R 1 {(OR 2 ) k OCONHR 3[NHCOO(R 4 O) n R 5 ] h} m (I)

[0034] In formula (I), R 1 R may be an m-valent hydrocarbon group having 2 to 4 carbon atoms, preferably an alkylene group having 2 to 4 carbon atoms. 2 and R 4 may each independently be a divalent hydrocarbon group having 2 to 4 carbon atoms, preferably an alkylene group having 2 to 4 carbon atoms. 3 R may be a divalent hydrocarbon group having 1 to 10 carbon atoms which may have a urethane bond, and preferably an alkylene group having 4 to 8 carbon atoms which may have a urethane bond. 5 may be a hydrocarbon group having 8 to 36 carbon atoms, and preferably a branched hydrocarbon group having 22 to 26 carbon atoms. m may be a number of 2 or more, and preferably 2. h may be a number of 1 or more, and preferably 1. k may be a number of 1 or more and 500 or less, and preferably a number of 100 to 300. n may be a number of 1 or more and 200 or less, and preferably a number of 10 to 100 or 10 to 30.

[0035] The hydrophobically modified polyether urethane represented by the above formula (I) can be, for example, R 1 -[(OR 2 ) k -OH] m (where R 1 , R 2 , k, and m are the same as above), and one or more polyether polyols (also referred to as compound P) represented by R 3 -(NCO) h+1 (where R 3 , h is the same as above) and one or more polyisocyanates (also referred to as compound Q) represented by HO-(R 4 -O) n -R 5 (where R 4 , R 5(where n is the same as above) and one or more polyether monoalcohols (also referred to as compound R). The charging ratio of the above three compounds is not particularly limited, but the ratio of isocyanate groups (NCO) derived from polyisocyanate (Q) to the total number of hydroxyl groups (OH) derived from polyether polyol (P) and polyether monoalcohol (R) may be, for example, 0.8 or more and 1.4 or less. For details of the hydrophobically modified polyether urethane represented by formula (I), see, for example, the description in JP 2016-88868 A.

[0036] When compound P, compound Q, and compound R are reacted, by-products other than the copolymer of formula (I) may be produced. For example, when a diisocyanate is used, the main product is the RQPQR copolymer of formula (I), but other copolymers such as RQR and RQ-(PQ) are also produced. x In this case, the copolymer of formula (I) type may be used in the present embodiment in the form of a mixture containing the copolymer of formula (I) type without separating the copolymer of formula (I) type.

[0037] The hydrophobically modified polyether urethane may also contain a compound represented by the following formula (II). H(OR 2 ) k OCONHR 3 [NHCOO(R 4 O) n R 5 ] (II)

[0038] In formula (II), R 2 , R 3 , R 4 , R 5 , k and n are the same as those in formula (I).

[0039] A particularly preferred example is a hydrophobically modified polyether urethane with the INCI name "(PEG-240 / Decyltetradeceth-20 / HDI) Copolymer (PEG-240 / HDI Copolymer Bisdecyltetradeceth-20 Ether)." This copolymer is commercially available from ADEKA Corporation under the trade name "ADEKA NOL GT-700."

[0040] The content of component (A) in the oil-in-water emulsion composition may be, for example, 0.005% by mass or more and 25% by mass or less, based on the oil-in-water emulsion composition. The content of component (A) may preferably be 0.01% by mass or more, 0.05% by mass or more, 0.1% by mass or more, 0.5% by mass or more, or 0.8% by mass or more. The content of component (A) may preferably be 20% by mass or less, 15% by mass or less, 10% by mass or less, 8% by mass or less, 6% by mass or less, 4% by mass or less, or 2% by mass or less. When the content of component (A) is 0.005% by mass or more, good elasticity is imparted and a suitable gel-like form can be achieved. Furthermore, when the content is 0.01% by mass or more, the cosmetic lasting power tends to be better. Furthermore, when the content of component (A) is equal to or less than a predetermined value, the network structure formed by component (A) becomes moderately loose, making it easier to feel a fresh feeling after applying the cosmetic, and the cosmetic film does not become too hard, which tends to result in better-lasting makeup.

[0041] Ingredient (B) The oil-in-water emulsion composition contains, as component (B), a second water-soluble polymer containing structural units derived from at least one selected from the group consisting of (meth)acrylic acid and (meth)acrylic acid alkyl esters. The second water-soluble polymer is a compound different from the first water-soluble polymer, and may be a water-soluble polymer compound that does not contain the structural unit (b) contained in the first water-soluble polymer. The oil-in-water emulsion composition may contain one water-soluble polymer compound of component (B) alone, or may contain two or more water-soluble polymer compounds in combination.

[0042] When the oil-in-water emulsion composition contains component (B), the network structure formed by component (A) becomes moderately loose, making it easier to feel a fresh feeling after applying the cosmetic, and the cosmetic film does not become too hard, so the makeup tends to last longer. This is thought to be because, for example, the mutual interaction between component (B) and component (A) creates a moderate sense of elasticity, further improving the fresh feeling.

[0043] The second water-soluble polymer contains structural units derived from at least one selected from the group consisting of (meth)acrylic acid and (meth)acrylic acid alkyl esters. The second water-soluble polymer may be a homopolymer of (meth)acrylic acid or a (meth)acrylic acid alkyl ester, or a copolymer of (meth)acrylic acid and a (meth)acrylic acid alkyl ester. The bonding style of the copolymer is not particularly limited and may be a block copolymer, a random copolymer, or the like. The second water-soluble polymer may also be a crosspolymer having a crosslinked structure. The crosslinked structure may be formed, for example, from structural units derived from (meth)acrylic acid and a crosslinker having an allyl group, such as pentaerythrityl allyl ether, sucrose allyl ether, or propylene allyl ether.

[0044] The number of carbon atoms in the alkyl group of the (meth)acrylic acid alkyl ester, which is a monomer constituting the second water-soluble polymer, may be, for example, 1 to 36. The alkyl group may be either linear or branched. In one aspect, the number of carbon atoms in the alkyl group may preferably be 1 to 18, 1 to 8, or 1 to 4. In another aspect, the number of carbon atoms in the alkyl group may preferably be 8 to 36, 8 to 32, or 10 to 30. Specific examples of the (meth)acrylic acid alkyl ester include short-chain alkyl esters such as methyl (meth)acrylate, ethyl (meth)acrylate, and propyl (meth)acrylate; octyl (meth)acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, tetradecyl (meth)acrylate, cetyl (meth)acrylate, octadecyl (meth)acrylate, icosane (meth)acrylate, behenyl (meth)acrylate, and triacotan (meth)acrylate. The (meth)acrylic acid alkyl ester may be used alone or in combination of two or more.

[0045] The second water-soluble polymer may further contain a structural unit derived from a monomer other than (meth)acrylic acid and (meth)acrylic acid alkyl ester. Examples of such a monomer include (meth)acrylic acid alkylamide. That is, the second water-soluble polymer may contain a structural unit derived from at least one selected from the group consisting of (meth)acrylic acid, (meth)acrylic acid alkyl ester, and (meth)acrylic acid alkylamide. The number of carbon atoms in the alkyl group in the other monomer may be, for example, 1 to 10, preferably 2 to 8, or 2 to 6. The alkyl group in the other monomer may have a substituent. Examples of the substituent include a sulfonic group, a carboxyl group, and an amino group. Specific examples of such a monomer include (meth)acryloyl taurine and (meth)acryloyldimethyl taurine.

[0046] Specific examples of the second water-soluble polymer include, but are not limited to, acrylate copolymers, (acrylates / C10-30 alkyl acrylate) crosspolymers, carbomers, sodium acrylate-sodium acryloyldimethyltaurate copolymers, and polyvinyl alcohol. The second water-soluble polymer may preferably comprise at least one selected from the group consisting of acrylate copolymers, carbomers, (acrylates / C10-30 alkyl acrylate) crosspolymers, and sodium acrylate-sodium acryloyldimethyltaurate copolymers. Note that (acrylates / C10-30 alkyl acrylate) crosspolymers include those known as acrylic acid-alkyl methacrylate copolymers.

[0047] Commercially available acrylate copolymers include SALCARE SC81UP (manufactured by BASF). Commercially available carbomers include CARBOPOL 980 (manufactured by Lubrizol). Commercially available acrylate / C10-30 alkyl acrylate crosspolymers include CARBOPOL 1382 (manufactured by Lubrizol). Commercially available sodium acrylate-sodium acryloyldimethyltaurate copolymers include SIMULGEL EG QD (manufactured by SEPPIC).

[0048] The second water-soluble polymer may be neutralized with a basic substance before use. The basic substance may be an organic base or an inorganic base. Examples of organic bases include alkanolamines such as monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, diisopropanolamine, and triisopropanolamine; and basic amino acids such as L-arginine. Examples of inorganic bases include sodium hydroxide, potassium hydroxide, and magnesium hydroxide. These basic substances may be added in an amount sufficient to neutralize the second water-soluble polymer, and the amount of basic substance added may be, for example, 20% by mass or more and 90% by mass or less relative to the second water-soluble polymer.

[0049] In addition to components (A) and (B), the oil-in-water emulsion composition may further contain a water-soluble polymer other than components (A) and (B). Examples of the water-soluble polymer include xanthan gum, cellulose gum, agar, gellan gum, methylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, collagen, hyaluronic acid, and carrageenan. The oil-in-water emulsion composition may contain one or more of the water-soluble polymers alone or in combination. When the oil-in-water emulsion composition contains the water-soluble polymer, the content of the water-soluble polymer may be, for example, greater than 0% by mass and up to 10% by mass, preferably up to 5% by mass, 1% by mass, or 0.5% by mass, and preferably at least 0.01% by mass.

[0050] The content of component (B) in the oil-in-water emulsion composition may be, for example, 0.0001% by mass or more and 10% by mass or less, based on the oil-in-water emulsion composition. The content of component (B) may preferably be 0.001% by mass or more, 0.005% by mass or more, 0.01% by mass or more, 0.02% by mass or more, 0.05% by mass or more, or 0.08% by mass or more. The content of component (B) may preferably be 2% by mass or less, 1% by mass or less, 0.6% by mass or less, 0.4% by mass or less, or 0.2% by mass or less. When the content of component (B) is within the above range, the interaction with component (A) tends to produce a moderate elasticity and further improve the freshness.

[0051] The mass ratio (A) / (B) of component (A) to component (B) in the oil-in-water emulsion composition may be, for example, 0.01 or more and 1000 or less. The mass ratio of component (A) to component (B) may be preferably 0.05 or more, 0.1 or more, 0.5 or more, 1 or more, 2 or more, 4 or more, 6 or more, or 8 or more, and may be preferably 500 or less, 200 or less, 100 or less, 50 or less, 30 or less, 15 or less, or 12 or less. When the mass ratio of component (A) to component (B) is equal to or greater than the above lower limit, stickiness tends to be further reduced. On the other hand, when it is equal to or less than the above upper limit, a more appropriate elastic feeling is obtained, and freshness tends to be further improved.

[0052] Ingredients (C) The oil-in-water emulsion composition contains, as component (C), a powder having polyglyceryl polyisostearate disposed on the surface. The oil-in-water emulsion composition may contain one type of component (C) alone or a combination of two or more types. The powder having polyglyceryl polyisostearate disposed on the surface can be obtained, for example, by surface-treating a powder with polyglyceryl polyisostearate. By including a powder having a specific compound disposed on the surface in combination with component (A), the adhesion of the oil-in-water emulsion composition to the skin tends to be improved when applied to the skin. This can be thought of, for example, as being due to the interaction between component (A) and the specific compound in component (C), which further improves the dispersibility and adhesion of component (C).

[0053] The powder to be subjected to surface treatment (hereinafter also referred to as untreated powder) is not particularly limited by its shape (plate-like, spindle-like, needle-like, etc.), particle size (smoke-like, fine particles, pigment-grade, etc.), particle structure (porous, non-porous, etc.), etc. Examples of powders include inorganic powders, glitter powders, organic powders, colored pigments, composite powders, polyethylene terephthalate-aluminum-epoxy laminated powder, polyethylene terephthalate-polymethyl methacrylate laminated powder, etc.

[0054] Examples of inorganic powders include carbon black, magnesium carbonate, calcium carbonate, chromium oxide, chromium hydroxide, aluminum silicate, magnesium silicate, aluminum magnesium silicate, titanium oxide, zinc oxide, aluminum oxide, cerium oxide, magnesium oxide, zirconium oxide, iron oxide, mica, synthetic mica, sericite, synthetic sericite, talc, kaolin, silicon carbide, barium sulfate, boron nitride, silica, and glass powder.

[0055] Examples of glittering powders include bismuth oxychloride, titanium mica (titanium oxide coated mica), iron oxide treated mica, iron oxide treated titanium mica, organic pigment treated titanium mica, silicon dioxide / titanium oxide coated mica, titanium oxide coated glass powder, iron oxide / titanium oxide coated glass powder, and aluminum powder.

[0056] Examples of organic powders include metal soap powders such as zinc laurate, zinc myristate, zinc stearate, magnesium laurate, magnesium myristate, and magnesium stearate, N-acyl lysine, nylon, polymethylsilsesquioxane, crosslinked organopolysiloxane polymers, polystyrene, polyurethane, polyethylene, polypropylene, polymethacrylates such as polymethyl methacrylate, complexes of polymethyl methacrylate and polyisoprene, polyacrylic esters, acrylonitrile-methacrylic acid copolymer powder, and polytetrafluoroethylene. Examples of crosslinked organopolysiloxane polymers include partially crosslinked methylpolysiloxanes such as dimethicone / vinyldimethicone crosspolymer, partially crosslinked methylphenylpolysiloxanes such as dimethicone / phenyldimethicone crosspolymer, partially crosslinked polyether-modified silicones such as dimethicone copolyol crosspolymer, partially crosslinked alkyl-modified silicones, and partially crosslinked alkyl-polyether-modified silicones such as lauryldimethicone-PEG crosspolymer. Examples of these crosslinked organopolysiloxane polymers include those with INCI names such as dimethicone / vinyldimethicone crosspolymer, dimethicone / phenylvinyldimethicone crosspolymer, dimethicone / vinyldiphenyldimethicone / methicone crosspolymer, dimethicone / lauryldimethicone crosspolymer, diphenyldimethicone / vinyldiphenyldimethicone / silsesquioxane crosspolymer, and vinyldimethicone / methicone silsesquioxane crosspolymer.

[0057] Examples of colored pigments include inorganic red pigments such as red iron oxide (red iron oxide), iron hydroxide, and iron titanate, inorganic brown pigments such as gamma-iron oxide, inorganic yellow pigments such as yellow iron oxide and ochre, inorganic black pigments such as black iron oxide and carbon black, inorganic purple pigments such as manganese violet and cobalt violet, inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide, and cobalt titanate, inorganic blue pigments such as iron blue and ultramarine, lakes of tar-based pigments made with aluminum or the like, lakes of natural pigments, and synthetic resin powders made by combining these powders. Examples of tar dyes include Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 505, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Yellow No. 204, Yellow No. 401, Blue No. 1, Blue No. 2, Blue 201, Blue No. 404, Green No. 3, Green 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, and Orange No. 207.

[0058] Examples of composite powders include titanium oxide-coated mica, iron oxide-coated mica, iron oxide-coated titanium-mica, zinc oxide-coated titanium-mica, barium sulfate-coated titanium-mica, organic pigment-treated titanium-mica, silicon dioxide-titanium oxide-coated mica, titanium oxide-coated glass powder, iron oxide-titanium oxide-coated glass powder, titanium oxide-containing silicon dioxide, and zinc oxide-containing silicon dioxide.

[0059] In makeup cosmetics containing a relatively large amount of powder, the effect of this embodiment is more pronounced, and therefore the powder is preferably a colored powder.

[0060] inorganic black pigments such as black iron oxide and carbon black; inorganic purple pigments such as mango violet and cobalt violet; inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate; inorganic blue pigments such as iron blue and ultramarine; tar-based dye pigments or laked tar-based dye pigments; natural color pigments or laked natural dyes; pearl pigments such as titanium oxide-coated mica, iron oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, fish scale foil, iron oxide-coated mica titanium, and natural dye-coated mica titanium; metal powder pigments such as aluminum powder, copper powder, and stainless steel powder; and composite powders obtained by combining these powders.

[0061] Polyglyceryl polyisosterionate used for the surface treatment of powder is composed of isostearic acid and polyglycerin bonded together via ester bonds. Polyglyceryl polyisosterionate is thought to be excellent in improving the dispersibility of the surface-treated powder because the isostearic acid has a branched chain structure.

[0062] The isostearic acid constituting the polyglyceryl polyisosterionate may be one type or a mixture of two or more types of branched stearic acid. For example, 5,7,7-trimethyl-2-(1,3,3-trimethylbutyl)-octanoic acid can be produced by subjecting an isobutylene dimer to an oxo reaction to produce a branched aldehyde having 9 carbon atoms, followed by aldol condensation of this aldehyde to produce a branched unsaturated aldehyde having 18 carbon atoms, followed by hydrogenation and oxidation (hereinafter referred to as "aldol condensation type"). This is commercially available from Nissan Chemical Industries, Ltd., for example. 2-Heptylundecanoic acid can be produced by subjecting nonyl alcohol to the Guerbet reaction followed by oxidation. This product is commercially available, for example, from Mitsubishi Chemical Corporation. A similar mixture with slightly different branching positions is commercially available from Nissan Chemical Industries, Ltd. Furthermore, a type in which the starting alcohol is not linear and saturated but has two methyl branches is also commercially available from Nissan Chemical Industries, Ltd. (hereinafter collectively referred to as "Guerbet reaction type"). Methyl-branched isostearic acid is obtained, for example, as a by-product during the production of oleic acid dimers (described, for example, in J. Amer. Oil Chem. Soc., 51, 522 (1974)). Examples include products commercially available from Emery, Inc. (hereinafter referred to as "Emery type"). The starting materials for the dimer acids that are the starting materials for Emery type isostearic acid may include not only oleic acid but also linoleic acid, linolenic acid, etc.

[0063] The number of isosteriaric acid moieties contained in polyglyceryl polyisosteriaric acid may be, for example, 1 or more and 10 or less, preferably 2 or more or 3 or more, and preferably 6 or less or 4 or less.

[0064] Polyglycerol is formed by condensation of glycerol. The number of glycerol structural units contained in the polyglycerol may be, for example, 1 to 10, preferably 1 to 6, 2 to 4, or 2.

[0065] Specific examples of polyisosterionates include glyceryl diisostearate, glyceryl triisostearate, diglyceryl isostearate (polyglyceryl-2 isostearate), diglyceryl diisostearate (polyglyceryl-2 diisostearate), diglyceryl triisostearate (polyglyceryl-2 triisostearate), diglyceryl tetraisostearate (polyglyceryl-2 tetraisostearate), and decaglyceryl decaisostearate (polyglyceryl-10 decaisostearate). Polyglyceryl polyisosterionates may preferably contain at least one of polyglyceryl-2 triisostearate and polyglyceryl-2 tetraisostearate. The inclusion of polyglyceryl-2 triisostearate or polyglyceryl-2 tetraisostearate tends to further improve interaction with component (A).

[0066] An example of polyglyceryl-2 isostearate is Cosmol (registered trademark) 41V (manufactured by The Nisshin Oillio Group, Ltd.). An example of polyglyceryl-2 diisostearate is Cosmol (registered trademark) 42V (manufactured by The Nisshin Oillio Group, Ltd.). An example of polyglyceryl-2 triisostearate is Cosmol (registered trademark) 43V (manufactured by The Nisshin Oillio Group, Ltd.). An example of polyglyceryl-2 tetraisostearate is Cosmol (registered trademark) 44V (manufactured by The Nisshin Oillio Group, Ltd.). Furthermore, examples of commercially available powders surface-treated with polyglyceryl polyisosterionate include PGQ TiO2 R250 (manufactured by Daito Chemical Industry Co., Ltd.) and PGQ RED No. 211P (manufactured by Daito Chemical Industry Co., Ltd.).

[0067] The amount of polyglyceryl polyisostearate used in the surface treatment of the powder may be, for example, 0.1% by mass or more and 30% by mass or less, preferably 0.5% by mass or more, or 1% by mass or more, and preferably 10% by mass or less, 5% by mass or less, or 3% by mass or less, relative to the untreated powder.

[0068] The average particle size of the surface-treated powder may be, for example, 0.01 μm to 100 μm, preferably 0.01 μm to 50 μm. In this specification, the average particle size is measured using a tabletop scanning electron microscope (proX PREMIUM, manufactured by Thermo Fisher Scientific) at an acceleration voltage of 5 kV to 15 kV and a magnification of 1,000 to 25,000 times, and calculated from the spherical equivalent diameters measured for 50 particles in an arbitrary field of view of the obtained image data.

[0069] The surface treatment can be carried out by a conventionally known method. For example, a surface treatment agent, polyglyceryl polyisosterionate, and powder particles to be treated are added to a solvent, stirred in a ball mill or the like, and then dried, washed with water, and filtered repeatedly as necessary to remove impurities, followed by drying and pulverization to obtain the desired powder surface-treated with polyglyceryl polyisosterionate.

[0070] The oil-in-water emulsion composition may contain, in addition to component (C), a powder that has been surface-treated with a surface treatment agent other than polyglyceryl polyisosterionate. The oil-in-water emulsion composition may contain one or more of the powders surface-treated with other surface treatment agents. Examples of surface treatments other than polyglyceryl polyisosterionate include fluorine compound treatment, silica treatment, alumina treatment, aluminum hydroxide treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, silane treatment, oil treatment, N-acylated lysine treatment, polyacrylic acid treatment, metal soap treatment, acrylic resin treatment, and metal oxide treatment. These surface treatments may be used alone or in combination of two or more. When the oil-in-water emulsion composition contains other surface-treated powders, the content thereof may be, for example, greater than 0% by mass and 20% by mass or less, and preferably 15% by mass or less, 12% by mass or less, 8% by mass or less, 1% by mass or less, or 0.1% by mass or less, based on the oil-in-water emulsion composition. The content of the other surface-treated powder may be 1% by mass or more, 2% by mass or more, or 5% by mass or more.

[0071] The content of component (C) in the oil-in-water emulsion composition may be, for example, 0.5% by mass or more and 50% by mass or less, based on the oil-in-water emulsion composition. The content of component (C) may preferably be 1% by mass or more, 2% by mass or more, 4% by mass or more, 6% by mass or more, 10% by mass or more, or 20% by mass or more, and may be 40% by mass or less, or 30% by mass or less. When the content of component (C) is within the above range, good dispersibility can be exhibited in the moderately loose network structure formed by components (A) and (B), and a good elastic feel tends to be achieved.

[0072] The mass ratio (A) / (C) of component (A) to component (C) in the oil-in-water emulsion composition may be, for example, 0.001 or more and 1 or less. The mass ratio of component (A) to component (C) may be preferably 0.005 or more, 0.008 or more, 0.01 or more, 0.02 or more, or 0.03 or more, and may be preferably 0.6 or less, 0.3 or less, 0.2 or less, 0.1 or less, 0.08 or less, or 0.06 or less. When the mass ratio of component (A) to component (C) is within the above range, the bouncy, elastic feel tends to be better.

[0073] The mass ratio (B) / (C) of component (B) to component (C) in the oil-in-water emulsion composition may be, for example, 0.0001 or more and 0.1 or less. The mass ratio of component (B) to component (C) may be preferably 0.0005 or more, 0.0008 or more, 0.001 or more, 0.002 or more, or 0.003 or more, and may be preferably 0.06 or less, 0.03 or less, 0.02 or less, 0.01 or less, 0.008 or less, or 0.006 or less. When the mass ratio of component (B) to component (C) is within the above range, the freshness characteristic of the gel tends to be better.

[0074] The mass ratio of the total of components (A) and (B) to component (C) in the oil-in-water emulsion composition ((A) + (B)) / (C) may be, for example, 0.001 or more and 1 or less. The mass ratio of component (A) to component (C) may be preferably 0.005 or more, 0.008 or more, 0.01 or more, 0.02 or more, or 0.03 or more, and may be preferably 0.6 or less, 0.3 or less, 0.2 or less, 0.1 or less, 0.08 or less, or 0.06 or less. When the mass ratio of components (A) and (B) to component (C) is within the above range, the bouncy elasticity and the freshness characteristic of a gel tend to be better.

[0075] Ingredients (D) The oil-in-water emulsion composition may further contain, as component (D), at least one surfactant selected from the group consisting of nonionic surfactants and amphoteric surfactants, each having an HLB value of 14.0 or higher. By including a specific surfactant as component (D), the oil-in-water emulsion composition tends to have improved elasticity and adhesion to the skin. Furthermore, by improving the dispersibility of component (C), the cosmetic lasting power tends to be improved. The oil-in-water emulsion composition may contain one type of component (D) alone, or two or more types in combination. Furthermore, component (D) may contain two or more types of nonionic surfactants or amphoteric surfactants, or may contain a combination of at least one nonionic surfactant and at least one amphoteric surfactant.

[0076] The HLB (Hydrophilic-Lypophilic Balance) value of a nonionic surfactant is an index that indicates the degree of affinity between water and oil (hydrophobic oil); the higher the value, the more hydrophilic the surfactant. The HLB value can be determined as a value specific to each substance, or it is publicly known. The HLB value indicates the molecular weight of the hydrophilic group portion of the total molecular weight of the surfactant, and is calculated using Griffin's equation.

[0077] Examples of nonionic surfactants with an HLB value of 14.0 or higher include polyoxyethylene hydrogenated castor oil, polyoxyethylene sugar fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkyl ethers, polyethylene glycol fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyglycerin fatty acid esters, polyoxyethylene cholesteryl ethers, polyoxyethylene phytosterols, polyoxyethylene cholestanol, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, etc., and may contain at least one selected from the group consisting of these. Among these, the nonionic surfactants may contain at least one selected from the group consisting of polyoxyethylene hydrogenated castor oil, polyoxyethylene sugar fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkyl ethers and polyethylene glycol fatty acid esters, because they can better impart elasticity to the oil-in-water emulsion composition, more preferably at least one selected from the group consisting of polyoxyethylene sugar fatty acid esters and polyoxyethylene sorbitan fatty acid esters, and even more preferably at least one selected from the group consisting of polyoxyethylene sugar fatty acid esters. The polyoxyethylene sugar fatty acid ester preferably contains at least a polyethylene glycol derivative of a fatty acid ester of glucose or alkyl glucose, and more preferably contains at least a polyethylene glycol derivative of an alkyl glucose fatty acid ester.

[0078] Examples of polyoxyethylene hydrogenated castor oil include polyoxyethylene (60) hydrogenated castor oil (commercially available products include NIKKOL (registered trademark) HCO-60; manufactured by Nikko Chemicals Co., Ltd.) and polyoxyethylene (80) hydrogenated castor oil (commercially available products include NIKKOL (registered trademark) HCO-80; manufactured by Nikko Chemicals Co., Ltd.).

[0079] Polyoxyethylene sugar fatty acid esters are polyethylene glycol derivatives of sugar fatty acid esters. The sugar fatty acid esters may be compounds obtained by reacting saturated or unsaturated fatty acids having 12 to 22 carbon atoms with sugars or alkyl sugars containing an alkyl group having 1 to 8 carbon atoms. Examples of sugars include glucose, sucrose, galactose, fructose, lactose, mannose, maltose, trehalose, melibiose, raffinose, and ribose. Among these, the sugar fatty acid ester is preferably a fatty acid ester of glucose or an alkyl glucose. The alkyl glucose may be an ether of glucose and an alkyl group having 1 to 8 carbon atoms, preferably 1 to 4 carbon atoms, and is preferably methyl glucose. A preferred ester may contain a mixture of mono-, di-, tri-, and tetraester derivatives, with at least 50% by weight of mono- and diester derivatives and usually not more than 95% by weight of monoester derivatives based on the total weight of the mixture. Specific examples of sugar fatty acid esters include glucose palmitate, alkyl glucose sesquistearate (e.g., methyl glucose sesquistearate), alkyl glucose palmitate (e.g., methyl glucose palmitate or ethyl glucose palmitate), etc. The number of moles of oxyethylene groups added in the polyoxyethylene moiety may be, for example, 5 to 30, and preferably 10 to 25.

[0080] Examples of polyoxyethylene sugar fatty acid esters include PEG-20 methyl glucose sesquistearate (commercially available products include GLUCAMATE SSE-20 (manufactured by Lubrizol)), which is particularly preferably used.

[0081] Examples of polyoxyethylene sorbitan fatty acid esters include polyoxyethylene (20EO) sorbitan monooleate (a commercially available product is, for example, Nonion OT-221R manufactured by NOF Corporation), polyoxyethylene (20EO) sorbitan monostearate, and polyoxyethylene (20EO) sorbitan monopalmitate.

[0082] Examples of polyoxyethylene alkyl ethers include polyoxyethylene (30EO) lauryl ether (commercially available products include EMALEX730 manufactured by Nippon Emulsion Co., Ltd.), polyoxyethylene (15EO) cetyl ether, and polyoxyethylene (20EO) stearyl ether.

[0083] Examples of polyethylene glycol fatty acid esters include polyethylene glycol monostearate (25EO) and polyethylene glycol monostearate (55EO) (commercially available products include, for example, NIKKOL (registered trademark) MYS-55V, manufactured by Nikko Chemicals).

[0084] Specific examples of nonionic surfactants with an HLB value of 14.0 or higher include polyoxyethylene sorbitan monostearate (HLB 14.9), polyoxyethylene sorbitan monooleate (HLB 15.0), polyoxyethylene sorbitan monolaurate (HLB 16.7), PEG-20 methyl glucose sesquistearate (HLB 15.0), polyoxyethylene sorbitan tetraoleate (HLB 13.8), PEG-40 monostearate (HLB 17.5), PEG-30 phytosterol (HLB 18.0), polyoxyethylene hydrogenated castor oil (HLB 14.0), and sucrose stearate (HLB 15.0).

[0085] Examples of amphoteric surfactants include, but are not limited to, phospholipids, alkyl betaine amphoteric surfactants such as lauryl dimethyl betaine, amidopropyl betaine amphoteric surfactants such as oleic acid amidopropyl betaine, and amino acid amphoteric surfactants such as sodium lauryl aminopropionate. Phospholipids are amphiphilic substances and are classified as amphoteric surfactants in this specification.

[0086] The amphoteric surfactant in component (D) may contain at least a phospholipid. Phospholipids are also called lecithin. Phospholipids are surface-active substances with good skin affinity and high moisturizing effects, and phospholipids can be used to obtain an emulsion composition that not only has surface-active effects but also has excellent usability and moisturizing properties. In this specification, phospholipid refers to a compound having a structure in which a fatty acid and a phosphoric acid are bonded to a central skeleton of glycerin or sphingosine, and an alcohol is further ester-bonded to the phosphoric acid. The phospholipid may be either a natural phospholipid or a synthetic phospholipid, or may be a hydrogenated phospholipid (hydrogenated lecithin) obtained by hydrogenating these phospholipids. In other words, the amphoteric surfactant in component (D) may contain at least one selected from the group consisting of lecithin and hydrogenated lecithin.

[0087] Examples of natural phospholipids include phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine, sphingomyelin, egg yolk phospholipid, soybean phospholipid, etc. Examples of synthetic phospholipids include dilauroylphosphatidylcholine, dimyristoylphosphatidylcholine, dipalmitoylphosphatidylcholine, distearoylphosphatidylcholine, dioleoylphosphatidylcholine, palmitoyloleoylphosphatidylcholine, etc. Examples of hydrogenated phospholipids include hydrogenated soybean phospholipid, hydrogenated soybean lysophospholipid, hydrogenated egg yolk phospholipid, hydrogenated phosphatidylcholine, hydrogenated phosphatidylserine, etc., with hydrogenated soybean phospholipid being particularly preferred.

[0088] Examples of commercially available phospholipids include Resinol S-10, Resinol S-10E, Resinol S-10M, Resinol S-10EX, Resinol S-10EZ, Resinol S-PIE (manufactured by Nikko Chemicals), COATSOME NC-21 (manufactured by NOF), Phospholipon 100H, Phospholipon 90H, Phospholipon 80H, Phospholipon 90G (manufactured by Phospholipid), etc. Examples of hydrogenated lysophospholipids include LP70H (manufactured by Nippon Fine Chemicals), SLP-White Lyso H, SLP-LPC 70H (manufactured by Tsuji Oil Mills), etc.

[0089] The content of component (D) in the oil-in-water emulsion composition may be, for example, 0.005% by mass or more and 10% by mass or less, based on the oil-in-water emulsion composition. The content of component (D) may preferably be 0.01% by mass or more, 0.05% by mass or more, 0.1% by mass or more, 0.5% by mass or more, or 0.8% by mass or more. The content of component (D) may preferably be 8% by mass or less, 6% by mass or less, 4% by mass or less, or 2% by mass or less. When the content of component (D) is within the above range, the dispersibility of component (C) is further increased, and adhesive strength tends to be further improved.

[0090] The mass ratio (C) / (D) of component (C) to component (D) in the oil-in-water emulsion composition may be, for example, 1 or more and 100 or less. The mass ratio of component (C) to component (D) may be preferably 2 or more, 5 or more, 10 or more, 15 or more, 20 or more, or 22 or more, and may be preferably 80 or less, 60 or less, 50 or less, 40 or less, 30 or less, or 28 or less. When the mass ratio of component (C) to component (D) is within the above range, the dispersibility of component (C) is further improved, and adhesive strength and cosmetic staying power are further improved, and there is a tendency for the lack of stickiness to be better.

[0091] The mass ratio (A) / (D) of component (A) to component (D) in the oil-in-water emulsion composition may be, for example, 0.01 or more and 10 or less. The mass ratio of component (A) to component (D) may be preferably 0.1 or more, 0.2 or more, 0.4 or more, 0.5 or more, 0.6 or more, or 0.8 or more, and may be preferably 8 or less, 5 or less, 3 or less, 2 or less, or 1.5 or less. When the mass ratio of component (A) to component (D) is within the above range, the elasticity tends to be further improved.

[0092] The mass ratio (B) / (D) of component (B) to component (D) in the oil-in-water emulsion composition may be, for example, 0.001 or more and 10 or less. The mass ratio of component (B) to component (D) may be preferably 0.01 or more, 0.02 or more, 0.04 or more, 0.05 or more, 0.06 or more, or 0.08 or more, and may be preferably 8 or less, 5 or less, 1 or less, 0.8 or less, 0.5 or less, or 0.2 or less. When the mass ratio of component (B) to component (D) is within the above range, the freshness characteristic of a gel tends to be further improved.

[0093] The oil-in-water emulsion composition may contain an oil. By including an oil, an oil-in-water emulsion composition having improved elasticity is obtained. The oil-in-water emulsion composition may contain one type of oil alone or a combination of two or more types of oil.

[0094] Oils include hydrocarbons such as isododecane, isohexadecane, light isoparaffin, liquid paraffin (mineral oil), squalane, squalene, α-olefin oligomer, polybutene, liquid isoparaffin, heavy liquid isoparaffin, polyisobutylene, and hydrogenated polyisobutene; rapeseed oil, avocado oil, almond oil, apricot kernel oil, perilla oil, orange oil, olive oil, kiwi seed oil, sesame oil, wheat germ oil, rice germ oil, rice bran oil, safflower oil, sage oil, soybean oil, tea seed oil, corn oil; Animal and vegetable oils such as rapeseed oil, evening primrose oil, camellia oil, persic oil, Job's tears oil, peanut oil, sunflower oil, grape seed oil, meadowfoam oil, rosemary oil, jojoba oil, macadamia nut oil, lavender oil, rosehip oil, and mink oil; glyceryl tri-2-ethylhexanoate, isotridecyl isononanoate, isononyl isononanoate, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, octyldodecyl myristate, glyceryl trioctanoate Ceryl, Caprylic / Capric Triglyceride, Glyceryl Diisostearate, Glyceryl Triisostearate, Decaglyceryl Decaisostearate (Polyglyceryl-10 Decaisostearate), Propylene Glycol Dicaprate, Neopentyl Glycol Dicaprate, Polyglyceryl Triisostearate, Diisostearyl Malate, Neopentyl Glycol Diethylhexanoate, Polyglyceryl-10 Decaisostearate, Pentaerythritol Tetraisostearate, Tetra-2-Ethyl Esters such as pentaerythritol tetraethylhexanoate (pentaerythrityl tetraethylhexanoate), dipentaerythritol pentaisostearate, dialkyl carbonate, tritridecyl trimellitate, bisethoxydiglycol cyclohexane-1,4-dicarboxylate, and dimer dilinoleyl hydrogenated rosin condensate; fatty acids such as oleic acid and isostearic acid; higher alcohols such as oleyl alcohol, 2-octyldodecanol, 2-decyltetradecanol, isostearyl alcohol, and 2-hexyldecanol;Silicone oils such as dimethylpolysiloxane (dimethicone), methyltrimethicone, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, tetramethyltetrahydrogencyclotetrasiloxane, tetramethyltetraphenylcyclotetrasiloxane, tetramethyltetratrifluoropropylcyclotetrasiloxane, pentamethylpentatrifluoropropylcyclopentasiloxane, polyether-modified methylpolysiloxane, oleyl-modified methylpolysiloxane, and polyvinylpyrrolidone-modified methylpolysiloxane; fluorine-based oils such as perfluoropolyether, perfluorodecane, and perfluorooctane; lanolin derivatives such as lanolin acetate, lanolin fatty acid isopropyl, and lanolin alcohol; liquid oils such as liquid UV absorbers such as 2-ethylhexyl paramethoxycinnamate and ethylhexyl salicylate; cocoa butter, shea butter, castor oil, and hydrogenated castor Oil, hydrogenated coconut oil, petrolatum, hydrogenated castor oil monostearate, hydrogenated castor oil monohydroxystearate, cholesteryl hydroxystearate, dipentaerythritol fatty acid ester, N-lauroyl-L-glutamic acid - di (octyldodecyl / cholesteryl / behenyl), N-lauroyl-L-glutamic acid - di (octyldodecyl / phytosteryl / behenyl), macadamia nut oil fatty acid phytosteryl, dimer dilinoleic acid (phytosteryl / isothiazolinone) Examples of oils include paste-like oils such as glycerin, glycerin, glycerin diglyceride ...

[0095] The content of the oil in the oil-in-water emulsion composition may be, for example, 0.1% by mass or more and 50% by mass or less. Preferably, the content of the oil may be 5% by mass or more or 20% by mass or less. When the content of the oil is within the above range, the elasticity tends to be further improved.

[0096] When the oil-in-water emulsion composition contains an oil, the mass ratio of component (A) to the oil may be, for example, 0.01 or more and 2 or less, preferably 0.02 or more, 0.06 or more, 0.08 or more, or 0.12 or more, and preferably 1.2 or less, 0.8 or less, 0.4 or less, or 0.2 or less. When the mass ratio of component (A) to the oil is within the above range, the elasticity tends to be further improved. Here, the content of the oil does not include the amount of the component corresponding to the oil used in the surface treatment of the powder.

[0097] The oil-in-water emulsion composition may generally contain water. Water is used as a solvent and constitutes the remainder of the components (A) to (D), oil, and other components that make up the oil-in-water emulsion composition. The water is preferably free of impurities, and from this perspective, it is preferable to use RO water, deionized water, distilled water, purified water, etc. The water content may be adjusted appropriately as needed, and may be, for example, from 20% to 90% by mass, and preferably from 30% to 70% by mass.

[0098] Other ingredients In addition to the above components, the oil-in-water emulsion composition of this embodiment may contain, as appropriate, powders commonly used in cosmetics, higher alcohols, surfactants other than component (D), ultraviolet absorbers, preservatives, antioxidants, alcohols, cosmetic ingredients, antibacterial agents, sterols, fragrances, chelating agents (such as EDTA), and the like, within limits that do not impair the effects of this embodiment.

[0099] Examples of the powder include the powder (untreated powder) that constitutes the surface-treated powder described in the description of component (C). When the oil-in-water emulsion composition contains the untreated powder, the content thereof may be, for example, greater than 0% by mass and not more than 15% by mass, preferably not more than 10% by mass, not more than 5% by mass, or not more than 1% by mass, relative to the oil-in-water emulsion composition. The content of the untreated powder may be 0.01% by mass or more, or 0.1% by mass or more.

[0100] Examples of higher alcohols include cetostearyl alcohol, behenyl alcohol, and jojoba alcohol.

[0101] Examples of surfactants other than component (D) include anionic surfactants such as stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid, 12-hydroxystearic acid, poly-12-hydroxystearic acid, fatty acid soaps, acyl glutamates, alkyl phosphates, polyoxyalkylene-added alkyl phosphates such as polyoxyethylene lauryl ether phosphate, polyoxyethylene cetyl ether phosphate, and polyoxyethylene stearyl ether phosphate; cationic surfactants such as alkylamine salts and alkyl quaternary ammonium salts; and nonionic surfactants having an HLB value of less than 14.

[0102] Examples of ultraviolet absorbers include cinnamic acid derivatives, aminobenzoic acid derivatives, salicylic acid derivatives, benzophenone derivatives, phenylbenzimidazole derivatives, phenylbenzotriazole derivatives, and silicone derivatives. Specific examples include 2-ethylhexyl paramethoxycinnamate, octocrylene, polysilicone-15, t-butylmethoxydibenzoylmethane, ethylhexyl triazone, 2-(4-diethylamino-2-hydroxybenzoyl)benzoic acid hexyl ester, bisethylhexyloxyphenol methoxyphenyl triazine, oxybenzone, methylenebisbenzotriazolyltetramethylbutylphenol, phenylbenzimidazole sulfonic acid, homosalate, and ethylhexyl salicylate.

[0103] Preservatives include parahydroxybenzoic acid derivatives (eg, methylparaben), phenoxyethanol, alkanediols (eg, 1,2-hexanediol), sodium dehydroacetate, and the like.

[0104] Examples of antioxidants include ascorbic acid, α-tocopherol, dibutylhydroxytoluene, and butylhydroxyanisole.

[0105] Examples of alcohols include lower alcohols such as ethanol and isopropanol, and polyhydric alcohols such as glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, triethylene glycol, tripropylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, polyethylene glycol, sorbitol, xylitol, polyethylene glycol monoethyl ether, diethylene glycol monoethyl ether, ethylene glycol dimethyl ether, 1,2-pentanediol, hexylene glycol, maltitol, and glycosyl trehalose.

[0106] Cosmetic ingredients include vitamin E and its vitamin E derivatives such as its acetate ester; oil-soluble ascorbic acid derivatives such as ascorbyl stearate, L-ascorbic acid 2-glucoside, ascorbyl palmitate, ascorbyl tetraisopalmitate, ascorbyl tetrahexyldecanoate, and ascorbyl acetate; jasmine flower extract, edelweiss flower / leaf extract, rosa centifolia flower extract, rosemary leaf extract, rosa izayoi extract, rose rose flower extract, rosa multiflora fruit extract, cherry blossom flower extract, and tocopherol acetate.

[0107] The oil-in-water emulsion composition of this embodiment may be a gel-like cosmetic product, and may be applied to makeup cosmetics such as foundation, concealer, eye color (eye shadow), eyeliner, eyebrow pencil, mascara, blush, lipstick, and lip gloss; skin care cosmetics such as lip cream, sunscreen cosmetics, makeup base, serum, and emulsion. The makeup cosmetics such as foundation, eye color, makeup base, sunscreen cosmetics, and blush are preferred, as they are expected to exhibit the effects of this embodiment even more effectively. The composition may be used by hand or finger, or by impregnating a puff, sponge, or the like with the composition. [Example]

[0108] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. Unless otherwise specified, "parts" and "%" are based on mass. Unless otherwise specified, each operation was carried out at room temperature (25°C).

[0109] Examples 1 to 30, Comparative Examples 1 to 8 Emulsion compositions having the formulations shown in Tables 1 to 3 below were prepared as follows. In the tables, "-" indicates that no ingredient was added.

[0110] Preparation method A. A water-soluble polymer was added to a portion of 1,3-butylene glycol and a portion of purified water, and the mixture was mixed at 80°C to obtain mixture a. B. The remaining 1,3-butylene glycol and a portion of components C and D were mixed at 50°C to obtain mixture b. C. Mixture a, the remaining component D, the remaining purified water, and triethanolamine were mixed to obtain mixture c. D. Tri-2-ethylhexaneglyceryl heated to 80°C was added to mixture c heated to 80°C, and emulsified to obtain an emulsion. E. Mixture b was added to the cooled emulsion and mixed to obtain a powder-containing emulsion composition.

[0111] [Table 1]

[0112] [Table 2]

[0113] [Table 3]

[0114] *1 Novethix (registered trademark) L-10 (manufactured by Lubrizol) *2 Accurin (registered trademark) 22 (manufactured by The Dow Chemical Company) *3 STRUCTURE 2001 (Akzo Nobel) *4 ADEKA NOL GT-700 (ADEKA Corporation) *5 SALCARE SC81UP (manufactured by BASF) *6 CARBOPOL 980 (Lubrizol) 5% swelling *7 CARBOPOL 1382 (Lubrizol) 5% swelling *8 SIMULGEL EG QD (SEPPIC) *9 PGQ TiO2 R250 (manufactured by Daito Kasei Kogyo Co., Ltd.) *10 Titanium oxide treated with Cosmol 44V (manufactured by Nisshin Oillio Group Co., Ltd.) Treatment process A *11 Titanium oxide treated with Cosmol (registered trademark) 43V (manufactured by Nisshin Oillio Group): Treatment process A *12 Titanium oxide treated with Cosmol (registered trademark) 42V (manufactured by Nisshin Oillio Group): Treatment process A *13 Titanium oxide treated with Cosmol (registered trademark) 41V (manufactured by Nisshin Oillio Group): Treatment process A *14 PGQ RED No.211P (manufactured by Daito Kasei Kogyo Co., Ltd.) *15 Iron oxide treated with Cosmol (registered trademark) 44V (manufactured by Nisshin Oillio Group): Treatment process A *16 ITT-2 TiO2 CR-50 (manufactured by Daito Chemical Industry Co., Ltd.) *17 OTS-2 RED R-516P (manufactured by Daito Kasei Kogyo Co., Ltd.) *18 CR-50 (Ishihara Sangyo Kaisha) *19 NIKKOL (registered trademark) HCO-60 (manufactured by Nikko Chemicals Co., Ltd.) *20 Leodor (registered trademark) TW-O120V (Kao Corporation) *21 Glucamate TM SSE-20 Emulsifier (Lubrizol) *22 Nonion (registered trademark) OT-221R (manufactured by NOF Corporation) *23 EMALEX 730 (manufactured by Nippon Emulsion Co., Ltd.) *24 NIKKOL (registered trademark) MYS-55V (manufactured by Nikko Chemicals Co., Ltd.) *25 Lecithin (manufactured by J-Oil Mills) *26 Resinol S-10EZ (Nikko Chemicals) *27 NIKKOL (registered trademark) HCO-40 (manufactured by Nikko Chemicals Co., Ltd.) *28 Cosmol 44V (manufactured by Nisshin Oillio Group)

[0115] Processing step A (1) The oil solution and a volatile hydrocarbon (hydrogenated polyisobutene) were mixed and heated to 80°C to obtain a solution. (2) To the resulting solution, titanium oxide treated with aluminum hydroxide (CR-50: manufactured by Ishihara Sangyo Kaisha) was added, and the mixture was mixed in a Despa mixer at 3000 rpm for 5 minutes to obtain a dispersion. (3) The resulting dispersion was heated at 80°C to volatilize the volatile hydrocarbons, thereby obtaining a solid. (4) The obtained solid was pulverized in a pulverizer to obtain a surface-treated powder.

[0116] A use test was conducted by a panel of experts using the emulsion composition obtained above as a sample. Before the evaluation of the use test, a preliminary test was conducted on the panel of experts to confirm that there were no significant differences in the scores between the panels. The results are shown in Tables 1 to 3. "-" in the tables indicates that the test was not evaluated.

[0117] Rating 1: Moderate elasticity Each sample was tested by a panel of 20 experts, who each rated it on a scale of 1 to 4 using the absolute standards below. The average score was calculated from the total scores of all panelists, and the sample was judged according to the following criteria. Specifically, the sample was evaluated based on whether it was not too elastic (i.e., not too hard) when used as a cosmetic product, and whether it was at a level where the elasticity could be felt upon application. A rating of C or higher was considered a pass.

[0118] Absolute Standard 3: You can feel a firm bounce when you press it with your finger. 2: There is a sense of bounce, but it's just a little lacking. 1: You can feel the bounce, but it's quite low. 0: There is no bounce and when you press with your finger, your finger just sinks in. Or it is too hard.

[0119] Judgment criteria A: 2.5 points or more B: 2 points or more and less than 2.5 points C: 1 point or more but less than 2 points D: Less than 1 point

[0120] Rating 2: Freshness Each sample was tested by a panel of 20 experts, who judged whether they felt a sense of freshness or not, according to the following criteria. Specifically, each sample was applied to the skin, and the panel evaluated whether they felt a sense of freshness or not after application. A rating of C or higher was considered a pass.

[0121] Judgment criteria A: All 20 people felt it was fresh. B: The number of people who felt it was fresh was between 15 and 19. C: The number of people who felt it was fresh was between 10 and 14. D: Fewer than 10 people felt it was fresh.

[0122] Rating 3: Adhesion Each sample was tested by a panel of 20 experts, who each rated it on a scale of 1 to 4 using the absolute standards below. The average score was calculated from the total scores of all panelists, and judged according to the following criteria. Specifically, an appropriate amount of each sample was applied to the skin, and the strength of the cosmetic's adhesion upon application was evaluated. A rating of C or higher was considered a pass.

[0123] Absolute Standard 3: Very sensitive 2: Feel 1: Somewhat 0: No feeling

[0124] Judgment criteria A: 2.5 points or more B: 2 points or more and less than 2.5 points C: 1 point or more but less than 2 points D: Less than 1 point

[0125] Rating 4: Non-sticky Each sample was tested by a panel of 20 experts, who each rated it on a scale of 1 to 4 using the absolute standards below. The average score was calculated from the total scores of all panelists, and the results were judged according to the following criteria. Specifically, an appropriate amount of each sample was applied to the skin, and the skin was evaluated for stickiness after application. A rating of C or higher was considered a pass.

[0126] Absolute Standard 3: Non-sticky. 2: Feels slightly sticky. 1: Feels slightly sticky. 0: Sticky.

[0127] Judgment criteria A: 2.5 points or more B: 2 points or more and less than 2.5 points C: 1 point or more but less than 2 points D: Less than 1 point

[0128] Rating 5: Makeup lasts Each sample was tested by a panel of 20 experts, who each rated it on a scale of one to four using the absolute standards below. The average score was calculated from the total scores of all panelists and judged according to the following criteria. Specifically, an appropriate amount of each sample was applied to the skin, and 8 hours after application, the makeup wear (i.e., the makeup effect lasting) was evaluated to see if it was sufficient. A rating of C or higher was considered a pass.

[0129] Absolute Standard 3: The makeup lasts well and the effects of the makeup last for a long time. 2: The makeup lasts well and the effect is noticeable, but it is slightly insufficient. 1: The makeup lasts a little long, and the makeup effect does not last long enough. 0: The makeup lasts very poorly and the makeup effect does not last long enough.

[0130] Judgment criteria A: 2.5 points or more B: 2 points or more and less than 2.5 points C: 1 point or more but less than 2 points D: Less than 1 point

[0131] Example 31: Gel-like emulsion (Component) (mass%) 1. (Acrylates / Beheneth-25 Methacrylate) Copolymer (Component A) (*1) 1.0% 2. Acrylates copolymer (ingredient B) (*5) 0.1% 3. (Sodium acrylate / sodium acryloyldimethyltaurate) copolymer (ingredient B) (*8) 0.3% 4. Polyglyceryl-2 tetraisostearate treated titanium dioxide 2% treated (ingredient C) (*9) 0.5% 5. Polyoxyethylene sorbitan monooleate (20E.O.) (ingredient D) (*20) 0.02% 6. PEG-20 methyl glucose sesquistearate (ingredient D) (*21) 0.03% 7. Sorbitan oleate 0.01% 8. PG dicaprylate 0.2% 9. Pentaerythrityl tetraethylhexanoate 0.3% 10. Cetyl ethylhexanoate 1.2% 11. Squalane 0.7% 12. Mineral oil 0.5% 13. Isohexadecane 0.2% 14. Glyceryl stearate 0.6% 15. Behenyl alcohol 0.4% 16. Cetostearyl alcohol 0.8% 17. Xanthan gum 0.02% 18. Hydroxypropyl methylcellulose 0.02% 19. Glycerin 1.0% 20. 1,3-Butylene Glycol 6.0% 21. Dipropylene glycol 3.0% 22. Triethanolamine 1.1% 23. Ethanol 5.0% 24. Phenoxyethanol 0.5% 25.Fragrance 0.2% 26. Mixture of beauty ingredients: Hitoshi Shizu extract, asparagus extract, artemia extract, guava extract, coffee extract, taiso extract, grape leaf extract, burnet extract, peppermint leaf extract, bifidobacterium culture lysate, cherry blossom flower extract, elderberry flower extract, tea leaf extract, cinnamon extract, jasmine flower extract, polyquaternium-51, multiflora rose fruit extract, rosehip flower extract, rosa sambac extract, water-soluble collagen, royal jelly extract, angelica acutiloba root extract, rosa centifolia flower extract, damask rose flower water, rosemary leaf extract, acerola fruit extract, acetyl glutamic acid, theanine, glycine, hydrolyzed hyaluronic acid, and sodium hyaluronate. 2.0% 27. Remaining purified water

[0132] Manufacturing method (1) Components 1 to 3, 17, and 18 were mixed with a portion of component 20 and a portion of component 27, and the mixture was heated to 80°C to obtain a mixture. (2) Components 19, 21, 22, a portion of component 20, and a portion of component 27 were added to the above (1) and mixed at 80°C to obtain a solution (aqueous phase). (3) A portion of component 5 and components 7 to 16 were heated to 80°C and mixed to obtain a solution (oil phase). (4) The solution (3) above was added to the solution (2) above and mixed to obtain an emulsified cosmetic. (5) After cooling the above (4), a mixture of ingredients 4, 6, the remaining ingredient 5, and the remaining ingredient 20, which had been uniformly mixed at 50°C, was added to obtain a powder-containing emulsion cosmetic. (6) Components 23 to 26 and the remaining component 27 were added to the above (5) to obtain a powder-containing emulsion cosmetic (Example 31).

[0133] evaluation The gel-type emulsion of Example 31 was confirmed to have moderate elasticity, freshness, adhesiveness, non-stickiness, and good makeup wear (makeup durability).

[0134] The total amount of component (A) was 1.0%, the total amount of component (B) was 0.4%, the total amount of component (C) was 0.5%, and the total amount of component (D) was 0.05%. Therefore, component (A) / component (B) was 2.5, component (A) / component (C) was 2.0, and component (C) / component (D) was 10.0.

[0135] Example 32: Gel foundation (Component) (mass%) 1. (Acrylates / Beheneth-25 Methacrylate) Copolymer (Component A) (*1) 1.0% 2. Acrylates copolymer (ingredient B) (*5) 0.19% 3. (Acrylates / C10-30 alkyl acrylate) crosspolymer (ingredient B) (*7) 0.01% 4. (Sodium acrylate / sodium acryloyldimethyltaurate) copolymer (ingredient B) (*8) 0.4% 5. Polyglyceryl-2 tetraisostearate treated titanium dioxide 2% treated (ingredient C) (*9) 12.0% 6. Polyglyceryl-2 tetraisostearate treated with red iron oxide 2% (ingredient C) (*14) 0.3% 7. Polyglyceryl-2 tetraisostearate treated with 2% yellow iron oxide (ingredient C) 1.45% 8. Polyglyceryl-2 tetraisostearate treated with 2% black iron oxide (ingredient C) 0.25% 9. Lecithin 0.5% processed mica 1.0% 10. Polyoxyethylene sorbitan monooleate (20E.O.) (ingredient D) (*20) 0.6% 11. PEG-20 methylglucose sesquistearate (ingredient D) (*21) 0.2% 12. Polyoxyethylene (60) hydrogenated castor oil (ingredient D) (*19) 0.2% 13. Lecithin (ingredient D) (*25) 0.5% 14. Polyoxyethylene (10) hydrogenated castor oil (*29) 0.3% 15. Triceteareth-4 Phosphate (*30) 0.1% 16. Sorbitan oleate 0.5% 17. Cholesteryl hydroxystearate 0.5% 18. Diisostearyl Malate 0.5% 19. Dipentaerythrityl hexa(hydroxystearate / stearic acid / rosinate) 0.5% 20. Squalane 0.7% 21. Mineral oil 0.5% 22. Isohexadecane 0.2% 23. Ethyl oleate 0.01% 24. Ethylhexyl methoxycinnamate 7.0% 25. Diethylaminohydroxybenzoylhexyl benzoate 0.4% 26. Polysilicone-15 0.1% 27. Bis-ethylhexyloxyphenol methoxyphenyl triazine 1.5% 28. Behenyl Alcohol 0.5% 29. Cetostearyl Alcohol 1.5% 30. Glyceryl stearate 1.0% 31. Xanthan gum 0.02% 32. Alcaligenes-producing polysaccharides 0.02% 33. Glycerin 1.0% 34. Diglycerin 0.2% 35. 1,3-Butylene glycol 5.0% 36. Dipropylene glycol 2.0% 37. Triethanolamine 1.2% 38. Ethanol 6.0% 39. Phenoxyethanol 0.3% 40.Fragrance 0.3% 41. Hydrolyzed conchiolin solution, gentian extract, hydrolyzed silk solution, hydrolyzed rice extract, seaweed extract, L-serine, Iwashobu leaf extract, Artemisia capillaris flower extract, Alpinia speciosa leaf extract, Saccharomyces cerevisiae extract, Pomegranate fruit extract, Pomegranate peel extract, Galium ginseng fruit extract, Eggplant fruit extract, Harpagophytum root extract, Parsley extract, Royal jelly extract, Rosa alba flower extract, Avocado extract, Gynostemma pentaphyllum extract, Chamomilla recutita (matricaria) water, Barberry fruit extract, Apple extract, Lemongrass extract, Ichinoseki extract, Asparagus extract, Artemia extract, Guava extract, Coffee extract Blend of Cosmetic Ingredients: Water, Watermelon Extract, Grape Leaf Extract, and Burnettosis Extract, Artemisia Capillaris Extract, Grape Seed Oil, Rosa Rosa Extract, Rosa Rusca Extract, Rosehip Extract, Sambucus Nigra Flower Extract, Camellia Sinensis Leaf Extract, Angelica Root Extract, Jasminum Sambac Flower Extract, Polyquaternium-51, Rosa Multiflora Fruit Extract, Rugosa Rose Flower Extract, Rosa Rosa Extract, Water-Soluble Collagen, Angelica Root Extract, Rosa Centifolia Flower Extract, Rosa Damascena Flower Water, Rosemary Leaf Extract, Acerola Fruit Extract, Acetyl Glutamic Acid, Theanine, Glycine, Hydrolyzed Hyaluronic Acid, and Sodium Hyaluronate 2.0% 42. Remaining purified water

[0136] (*29) NIKKOL (registered trademark) HCO-10 (manufactured by Nikko Chemicals Co., Ltd.) (*30) Hostafat KW340D (Clariant Japan)

[0137] Manufacturing method (1) Components 1 to 4, 31, and 32 were mixed with a portion of component 35 and a portion of component 42, and the mixture was heated to 80°C to obtain a mixture. (2) Components 10, 12, 16, 33, 34, 36, 37, a portion of component 35, and a portion of component 42 were added to the above (1) and mixed at 80°C to obtain a solution (aqueous phase). (3) Component 11, components 13 to 15, and the remaining component 35 were heated to 50°C and mixed, and components 5 to 9 were added and processed with a roller. (4) Components 17 to 30 were heated to 80°C and mixed to obtain a solution (oil phase). (5) The solution (4) above was added to the solution (2) above and mixed to obtain an emulsified cosmetic. (6) After cooling the above (5), the above (3) was added and mixed to obtain a powder-containing emulsion cosmetic. (7) Components 38 to 41 and the remaining component 42 were added to the above (6) to obtain a powder-containing emulsion cosmetic (Example 32).

[0138] evaluation The gel foundation of Example 32 was confirmed to have moderate elasticity, freshness, adhesion, non-stickiness, and good makeup wear (makeup durability).

[0139] The total amount of component (A) was 1.0%, the total amount of component (B) was 0.6%, the total amount of component (C) was 14.0%, and the total amount of component (D) was 1.5%. Therefore, component (A) / component (B) was 1.667, component (A) / component (C) was 0.0714, and component (C) / component (D) was 9.333.

[0140] Example 33: Gel sunscreen (Component) (mass%) 1. (Acrylates / Beheneth-25 Methacrylate) Copolymer (Component A) (*1) 0.7% 2. (PEG-240 / Decyltetradeceth-20 / HDI) Copolymer (Component A) (*4) 0.1% 3. Acrylates copolymer (ingredient B) (*5) 0.2% 4. (Sodium acrylate / sodium acryloyldimethyltaurate) copolymer (ingredient B) (*8) 0.4% 5. Polyglyceryl-2 tetraisostearate treated mica 2% treated (ingredient C) 3.0% 6. Polyglyceryl-2 tetraisostearate treated with 2% talc (ingredient C) 2.0% 7. PEG-20 methylglucose sesquistearate (ingredient D) (*21) 0.5% 8. Polyoxyethylene (60) hydrogenated castor oil (ingredient D) (*19) 0.2% 9. Hydrogenated lecithin (ingredient D) (*26) 0.1% 10. Polyoxyethylene (10) hydrogenated castor oil (*29) 1.0% 11. Sorbitan oleate 0.05% 12. Polyglyceryl-10 Laurate 1.0% 13. PEG-5 Phytosterol 0.2% 14. Dimethicone 0.5% 15. Diphenylsiloxyphenyl Trimethicone 2.0% 16. Methyl trimethicone 0.5% 17. Glyceryl tri-2-ethylhexanoate 0.2% 18. Cholesteryl hydroxystearate 0.2% 19. Dipentaerythrityl hexa(hydroxystearate / stearic acid / rosinate) 0.1% 20. Squalane 1.0% 21. Isohexadecane 0.25% 22. Isododecane 0.2% 23. Hydrogenated polyisobutene 0.2% 24. Ethylhexyl methoxycinnamate 8.0% 25. Diethylaminohydroxybenzoylhexyl benzoate 1.0% 26. Polysilicone-15 2.0% 27. Bis-ethylhexyloxyphenol methoxyphenyl triazine 2.0% 28. Methylenebisbenzotriazolyltetramethylbutylphenol 2.0% 29. Behenyl Alcohol 0.8% 30. Cetostearyl alcohol 1.2% 31. Glyceryl stearate 1.0% 32. Xanthan gum 0.02% 33. Tremella fuciformis polysaccharide 0.02% 34. Alcaligenes-producing polysaccharides 0.02% 35. Glycerin 1.5% 36.1,3-Butylene glycol 8.0% 37. Triethanolamine 0.9% 38. Ethanol 5.0% 39. Phenoxyethanol 0.3% 40.Fragrance 0.3% 41. Rosa alba flower extract, avocado extract, gynostemma pentaphyllum extract, chamomilla recutita (matricaria) flower extract, barberry fruit extract, apple extract, lemongrass extract, ginseng extract, asparagus extract, artemia extract, guava extract, coffee extract, ginseng root extract, grape leaf extract, burnet extract, peppermint leaf extract, bifidobacterium culture lysate, cherry blossom flower extract, elderberry flower extract, tea leaf extract, cinnamon leaf extract, jasmine flower extract, polyquaternium-51, rose multiflora fruit extract, rose rosa rubra flower extract, rosa sylvestris extract, water-soluble collagen, royal jelly extract, angelica acutiloba root extract, rose centifolia flower extract, damask rose flower water, rosemary leaf extract, acerola fruit extract, acetyl glutamic acid, theanine, glycine, hydrolyzed hyaluronic acid, and sodium hyaluronate mixture (a mixture of beauty ingredients) 2.0% 42. Remaining purified water

[0141] Manufacturing method (1) Components 1 to 4, 32 to 34, a portion of component 36, and a portion of component 42 were mixed and heated to 80°C to obtain a mixture. (2) To the above (1), ingredients 8, a portion of 10, 11, 13, 35, 37, a portion of ingredient 36, and a portion of ingredient 42 were added, and the mixture was heated to 80°C and mixed to obtain a solution (aqueous phase). (3) Components 7 and 9, the remaining component 10, and a portion of component 36 were mixed at 50°C, and components 5 and 6 were added and mixed to obtain a mixture. (4) Components 14 to 27 and 29 to 31 were heated to 80°C and mixed to obtain a solution (oil phase). (5) The solution (4) above was added to the solution (2) above and mixed to obtain an emulsified cosmetic. (6) After cooling the above (5), the above (3), component 12, component 28, and the remaining component 36 were added and mixed to obtain a powder-containing emulsion cosmetic. (7) Components 38 to 41 and the remaining component 42 were added to the above (6) to obtain a powder-containing emulsion cosmetic (Example 33).

[0142] evaluation The gel sunscreen of Example 33 was confirmed to have moderate elasticity, freshness, adhesion, non-stickiness, and good makeup wear (makeup durability).

[0143] The total amount of component (A) was 0.8%, the total amount of component (B) was 0.6%, the total amount of component (C) was 5.0%, and the total amount of component (D) was 0.8%. Therefore, component (A) / component (B) was 1.333, component (A) / component (C) was 0.160, and component (C) / component (D) was 6.250.

[0144] Example 34: Gel eye color (Component) (mass%) 1. (Acrylates / Beheneth-25 Methacrylate) Copolymer (Component A) (*1) 0.5% 2. Acrylates copolymer (ingredient B) (*5) 0.05% 3. Polyglyceryl-2 tetraisostearate treated titanium dioxide (16%) coated borosilicate (Ca / Al) (ingredient C) 5.0% 4. Polyglyceryl-2 tetraisostearate treated titanium dioxide (20%) coated borosilicate (Ca / Al) (ingredient C) 5.0% 5. Polyglyceryl-2 tetraisostearate treated titanium dioxide (11%) coated borosilicate (Ca / Al) (ingredient C) 5.0% 6. Polyglyceryl-2 tetraisostearate treated titanium dioxide (13%) coated synthetic phlogopite (ingredient C) 5.0% 7. Polyglyceryl-2 tetraisostearate treated titanium dioxide (55%) coated mica (ingredient C) 8.0% 8. Polyglyceryl-2 tetraisostearate treated titanium dioxide (55%) and silica (12%) coated mica (ingredient C) 3.0% 9. Polyglyceryl-2 tetraisostearate treated with red iron oxide 2% (ingredient C) (*14) 2.0% 10. Red iron oxide 0.5% 11. Red 202 0.5% 12. (Fluoride / Hydroxide / Oxide) / (Mg / K / Silicon) 1.0% 13. PEG-20 methylglucose sesquistearate (ingredient D) (*21) 0.4% 14. Lecithin (ingredient D) (*25) 0.5% 15. Polyoxyethylene sorbitan monooleate (20E.O.) (ingredient D) (*20) 1.1% 16. Methyl glucose sesquistearate 0.5% 17. Dimethicone 0.5% 18. Glyceryl tri-2-ethylhexanoate 2.2% 19. Dextrin Isostearate 0.5% 20. Dipentaerythrityl hexa(hydroxystearate / stearic acid / rosinate) 0.5% 21. Squalane 2.0% 22. Glycerin 1.0% 23. 1,3-Butylene glycol 10.0% 24. Triethanolamine 0.6% 25. Ethanol 5.0% 26. Phenoxyethanol 0.2% 27.Fragrance 0.2% 28. Rosa Alba Flower Extract, Avocado Extract, Gynostemma Pentaphyllum Extract, Chamomilla Recutita (Matricaria) Flower Extract, Apple Extract, Lemongrass Extract, Hitotsujitsu Extract, Asparagus Extract, Artemia Extract, Guava Extract, Coffee Extract, Dianthus Root Extract, Grape Leaf Extract, Burnt Leaves Extract, Mentha Piperita (Peppermint) Leaf Extract, Bifidobacterium Ferment Lysate, Cherry Blossom Flower Extract, Sambucus Nigra Flower Extract, Camellia Sinensis Leaf Extract, Angelica Root Extract, Rosa Multiflora Fruit Extract, Rugosa Rose Flower Extract, Rosa Izayoi Extract, Water-Soluble Collagen, Royal Jelly Extract, Angelica Root Extract, Rosa Centifolia Flower Extract, Rosa Damascena Flower Water, Rosemary Leaf Extract, Acerola Fruit Extract, Acetyl Glutamic Acid, Theanine, Glycine, Hydrolyzed Hyaluronic Acid, and Sodium Hyaluronate Mixture (Beauty Ingredient Mixture) 2.0% 29. Remaining purified water

[0145] Manufacturing method (1) Components 1 and 2, a portion of component 23, and a portion of component 29 were mixed and heated to 80°C to obtain a mixture. (2) Components 15, 22, 24, a portion of component 23, and a portion of component 29 were added to the above (1) and mixed at 80°C to obtain a solution (aqueous phase). (3) Components 13, 14, and a portion of component 23 were mixed, and components 3 to 12 were added and mixed to obtain a mixture. (4) Components 16 to 21 were heated to 80°C and mixed to obtain a solution (oil phase). (5) The solution (4) above was added to the solution (2) above and mixed to obtain an emulsified cosmetic. (6) After cooling the above (5), the above (3) was added and mixed to obtain a powder-containing emulsion cosmetic. (7) Components 25 to 28, the remaining component 23, and the remaining component 29 were added to the above (6) to obtain a powder-containing emulsion cosmetic (Example 34).

[0146] evaluation The gel eye color of Example 34 was confirmed to have moderate elasticity, freshness, adhesion, non-stickiness, and good makeup wear (makeup durability).

[0147] The total amount of component (A) was 0.5%, the total amount of component (B) was 0.05%, the total amount of component (C) was 33.0%, and the total amount of component (D) was 2.0%. Therefore, component (A) / component (B) was 10.0, component (A) / component (C) was 0.0152, and component (C) / component (D) was 16.50.

[0148] Example 35: Gel eye color (Component) (mass%) 1. (Acrylates / Beheneth-25 Methacrylate) Copolymer (Component A) (*1) 0.4% 2. (Acrylates / steareth-20 methacrylate) copolymer (ingredient A) (*2) 0.01% 3. (Acrylates / Steareth-20 Itaconate) Crosspolymer (Component A) (*3) 0.01% 4. (PEG-240 / Decyltetradeceth-20 / HDI) Copolymer (Component A) (*4) 0.08% 5. Acrylates copolymer (ingredient B) (*5) 0.2% 6. (Sodium acrylate / sodium acryloyldimethyltaurate) copolymer (ingredient B) (*8) 0.2% 7. Polyglyceryl-2 tetraisostearate treated titanium dioxide (16%) coated borosilicate (Ca / Al) (ingredient C) 2.0% 8. Polyglyceryl-2 tetraisostearate treated titanium dioxide (20%) coated borosilicate (Ca / Al) (ingredient C) 3.0% 9. Polyglyceryl-2 tetraisostearate treated titanium dioxide (55%) coated mica (ingredient C) 10.0% 10. Polyglyceryl-2 tetraisostearate treated titanium dioxide (55%) and silica (12%) coated mica (ingredient C) 8.0% 11. Titanium oxide (11%) coated borosilicate (Ca / Al) 5.0% 12. Titanium oxide (13%) coated synthetic phlogopite 5.0% 13. Red iron oxide 0.5% 14. Yellow iron oxide 0.3% 15. Red 202 0.2% 16.Yellow 4 0.5% 17. (Fluoride / Hydroxide / Oxide) / (Mg / K / Silicon) 1.5% 18. Silica 0.2% 19. PEG-20 methylglucose sesquistearate (ingredient D) (*21) 0.8% 20. Hydrogenated lecithin (ingredient D) (*26) 0.5% 21. Polyoxyethylene sorbitan monooleate (20E.O.) (ingredient D) (*20) 1.0% 22. Methyl glucose sesquistearate 0.8% 23. Dimethicone 0.5% 24. Diphenyl Dimethicone 0.5% 25. Glyceryl tri-2-ethylhexanoate 2.0% 26. Dextrin Isostearate 0.3% 27. Polyglyceryl-2 Triisostearate 0.7% 28. Polyglyceryl-2 Diisostearate 0.3% 29. Squalane 2.0% 30. Behenyl alcohol 0.7% 31. Cetostearyl alcohol 0.9% 32. Glyceryl stearate 0.8% 33. Xanthan gum 0.01% 34. Hydroxypropyl methylcellulose 0.03% 35. Glycerin 1.0% 36. Dipropylene glycol 1.0% 37. Glycosyltrehalose 0.5% 38. Hydrogenated starch hydrolysate 0.3% 39.1,3-Butylene glycol 14.0% 40. Triethanolamine 0.6% 41. Ethanol 7.0% 42. Phenoxyethanol 0.2% 43.Fragrance 0.2% 44. Hydrolyzed conchiolin solution, gentian extract, hydrolyzed silk solution, hydrolyzed rice extract, seaweed extract, L-serine, Iwashobu leaf extract, Artemisia capillaris flower extract, Alpinia speciosa leaf extract, Saccharomyces cerevisiae extract, Pomegranate fruit extract, Pomegranate peel extract, Galium ginseng fruit extract, Eggplant fruit extract, Harpagophytum root extract, Parsley extract, Royal jelly extract, Rosa alba flower extract, Avocado extract, Gynostemma pentaphyllum extract, Chamomilla recutita (matricaria) water, Barberry fruit extract, Apple extract, Lemongrass extract, Ichinoseki extract, Asparagus extract, Artemia extract, Guava extract, Coffee extract Blend of Cosmetic Ingredients: Water, Watermelon Extract, Grape Leaf Extract, and Burnettosis Extract, Artemisia Capillaris Extract, Grape Seed Oil, Rosa Rosa Extract, Rosa Rusca Extract, Rosehip Extract, Sambucus Nigra Flower Extract, Camellia Sinensis Leaf Extract, Angelica Root Extract, Jasminum Sambac Flower Extract, Polyquaternium-51, Rosa Multiflora Fruit Extract, Rugosa Rose Flower Extract, Rosa Rosa Extract, Water-Soluble Collagen, Angelica Root Extract, Rosa Centifolia Flower Extract, Rosa Damascena Flower Water, Rosemary Leaf Extract, Acerola Fruit Extract, Acetyl Glutamic Acid, Theanine, Glycine, Hydrolyzed Hyaluronic Acid, and Sodium Hyaluronate 2.0% 45. Remaining purified water

[0149] Manufacturing method (1) Components 1 to 6, components 33 and 34, a portion of component 39, and a portion of component 45 were mixed and heated to 80°C to obtain a mixture. (2) Components 21, 35 to 38, 40, a portion of component 39, and a portion of component 45 were added to the above (1) and mixed at 80°C to obtain a solution (aqueous phase). (3) Components 19, 20, and a portion of component 39 were mixed, and components 7 to 18 were added and mixed to obtain a mixture. (4) Components 22 to 32 were heated to 80°C and mixed to obtain a solution (oil phase). (5) The solution (4) above was added to the solution (2) above and mixed to obtain an emulsified cosmetic. (6) After cooling the above (5), the above (3) was added and mixed to obtain a powder-containing emulsion cosmetic. (7) Components 41 to 44, the remaining component 39, and the remaining component 45 were added to the above (6) to obtain a powder-containing emulsion cosmetic (Example 35).

[0150] evaluation The gel eye color of Example 35 was confirmed to have moderate elasticity, freshness, adhesion, non-stickiness, and good makeup wear (makeup durability).

[0151] The total amount of component (A) was 0.5%, the total amount of component (B) was 0.4%, the total amount of component (C) was 23.0%, and the total amount of component (D) was 2.3%. Therefore, component (A) / component (B) was 1.250, component (A) / component (C) was 0.0217, and component (C) / component (D) was 10.00.

Claims

1. The following components (A) to (C): (A) at least one selected from the group consisting of a first water-soluble polymer containing a structural unit derived from at least one selected from the group consisting of (meth)acrylic acid and a (meth)acrylic acid alkyl ester, and a structural unit derived from at least one selected from the group consisting of an itaconate polyoxyalkylene alkyl ether and a (meth)acrylic acid polyoxyalkylene alkyl ether, and a hydrophobically modified polyether urethane; (B) a second water-soluble polymer that includes a structural unit derived from at least one selected from the group consisting of (meth)acrylic acid and a (meth)acrylic acid alkyl ester, and that is different from the first water-soluble polymer; (C) a powder having polyglyceryl polyisostearate disposed on the surface thereof; Contains An oil-in-water emulsion composition, wherein the content of the component (C) is 0.5% by mass or more and 50% by mass or less.

2. 2. The oil-in-water emulsion composition according to claim 1, wherein the content of the component (A) is 0.05% by mass or more and 10% by mass or less.

3. 2. The oil-in-water emulsion composition according to claim 1, wherein the content of the component (C) is 1% by mass or more and 40% by mass or less.

4. 2. The oil-in-water emulsion composition according to claim 1, wherein the mass ratio of the component (A) to the component (B) is 0.1 or more and 500 or less.

5. 2. The oil-in-water emulsion composition according to claim 1, wherein the mass ratio of the component (A) to the component (C) is 0.001 or more and 1 or less.

6. 2. The oil-in-water emulsion composition according to claim 1, wherein the polyglyceryl polyisostearate in component (C) comprises at least one selected from the group consisting of polyglyceryl-2 tetraisostearate and polyglyceryl-2 triisostearate.

7. 2. The oil-in-water emulsion composition according to claim 1, further comprising, as component (D), at least one surfactant selected from the group consisting of a nonionic surfactant having an HLB value of 14.0 or more, which comprises at least one surfactant selected from the group consisting of polyoxyethylene hydrogenated castor oil, polyoxyethylene sugar fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, and polyoxyethylene glycol fatty acid ester, and at least one surfactant selected from the group consisting of lecithin and hydrogenated lecithin.

8. 8. The oil-in-water emulsion composition according to claim 7, wherein the mass ratio of the component (C) to the component (D) is 1 or more and 100 or less.

9. 8. The oil-in-water emulsion composition according to claim 7, wherein the component (D) comprises at least one selected from the group consisting of polyoxyethylene sugar fatty acid esters and polyoxyethylene sorbitan fatty acid esters.

10. 8. The oil-in-water emulsion composition according to claim 7, wherein the component (D) comprises PEG-20 methyl glucose sesquistearate.

11. 2. The oil-in-water emulsion composition according to claim 1, wherein the hydrophobically modified polyurethane comprises a compound represented by the following formula (I): R １ {(OR ２ ) ｋ OCONHR ３ [NHCOO(R ４ O) ｎ R ５ ] ｈ } ｍ (I) (In formula (I), R １ represents an m-valent hydrocarbon group having 2 to 4 carbon atoms, and R ２ and R ４ each independently represents a divalent hydrocarbon group having 2 to 4 carbon atoms; R ３ represents a divalent hydrocarbon group having 1 to 10 carbon atoms which may have a urethane bond, and R ５ represents a hydrocarbon group having 8 to 36 carbon atoms; m is a number of 2 or more; h is a number of 1 or more; k is a number of 1 or more and 500 or less; and n is a number of 1 or more and 200 or less.

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