Oil-in-water type emulsion composition

Abstract

To provide an oil-in-water type emulsion composition which does not exhibit unnatural opacity when spread on the skin, can provide brightness to the skin, and exhibits good stability.SOLUTION: The oil-in-water emulsified composition comprises (A) (A1) a hydrophobic powder having a refraction index of 1.7 or more, or (A2) a powder obtained by subjecting a hydrophilic powder having a refraction index of 1.7 or more to hydrophobic treatment, (B) a cellulose derivative having a hydroxyalkyl group, (C) a polyether-modified silicone represented by the following formula (I), (D) a powder-containing oil component, and (E) a powder-free oil component.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] Ionic water-soluble polymer compounds, such as carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers, thicken due to the repulsion of ions, and therefore can achieve high viscosity even in small amounts. Therefore, by using an ionic water-soluble polymer compound as a thickener, it is possible to set the viscosity over a wide range while suppressing the stickiness and sliminess characteristic of polymers. Furthermore, the thixotropy characteristic of ionic water-soluble polymer compounds makes it possible to provide the user with a refreshing sensation when used. For this reason, ionic water-soluble polymer compounds are widely used as cosmetic raw materials, particularly as aqueous phase thickeners for water-based cosmetics and oil-in-water emulsion cosmetics.

[0003] Thus, while ionic water-soluble polymer compounds have excellent properties as thickeners, they may sometimes make it difficult to appropriately control the viscosity of the composition to which they are added due to interactions caused by contact with the ionic groups of other formulation components or ionic substances.

[0004] For example, titanium oxide powder particles, which are generally used as a pigment, are usually surface-modified with alumina, zinc oxide, or the like. Therefore, when added to an aqueous phase thickened with an ionic water-soluble polymer compound, the interaction between the ions derived from the modifier and the ionic water-soluble polymer compound can result in an overall or local decrease or increase in viscosity, or aggregation of the powder particles, making it difficult to provide, while maintaining stability, the watery feel provided by the inherent thickening by the ionic water-soluble polymer compound and the inherent effects of titanium oxide powder.

[0005] As a means for solving such problems, for example, Patent Document 1 discloses an oil-in-water emulsion composition containing hydrophobic powder particles, a specific polyether-modified silicone, and an ionic water-soluble polymer compound. This oil-in-water emulsion composition stably exhibits the inherent moist feel of thickening by the ionic water-soluble polymer compound and the inherent effects of powder particles over time. However, when spread on the skin, this oil-in-water emulsion composition sometimes becomes unnaturally white. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] International Publication No. 2004 / 006871 Summary of the Invention

[0007] The present invention provides an oil-in-water emulsion composition.

[0008] The present inventors have surprisingly found that an oil-in-water emulsion composition comprising specific components does not exhibit unnatural opacity when spread on the skin, provides brightness to the skin, and exhibits good stability. The present invention is based on these findings.

[0009] According to the present invention, the following inventions are provided. (1) (A) (A1) A hydrophobic powder having a refractive index of 1.7 or more, or (A2) A hydrophilic powder having a refractive index of 1.7 or more, which has been subjected to a hydrophobic treatment; (B) a cellulose derivative having a hydroxyalkyl group; (C) Formula (I): [ka] Polyether-modified silicone represented by the formula: [In the ceremony, A 1 , A 2 and n A's 3may be the same or different and are a methyl group, a phenyl group, or General formula -C3H6O(C2H4O) a (C3H6O) b R' (wherein R' is a hydrogen atom, an acyl group, or an alkyl group having 1 to 4 carbon atoms, and a and b, which may be the same or different, are integers of 5 to 50.) and in formula (I), A is a polyoxyalkylene group represented by 1 , A 2 and n A's 3 at least one of the groups is the polyoxyalkylene group; R is a methyl group or a phenyl group, m is an integer from 200 to 600; n is an integer from 1 to 40. (D) oil-containing powders, and (E) Powder-free oil content An oil-in-water emulsion composition comprising: The component (A) is contained in an amount of 0.4% by mass or more based on the total amount of the oil-in-water emulsion composition, The (B) component is contained in an amount of 0.13% by mass or more based on the total amount of the oil-in-water emulsion composition, The component (D) is (i) dimethicone, methylphenylpolysiloxane, diphenylsiloxyphenyl trimethicone, and caprylyl methicone, (ii) cyclic silicones, and (iii) Hydrocarbons, esters, and ethers with a molecular weight of 400 or less A composition comprising one or more oils selected from the group consisting of: (2) The oil-in-water emulsion composition according to (1), which contains 1 to 5% by mass of component (D) based on the total amount of the oil-in-water emulsion composition. (3) The oil-in-water emulsion composition according to (1) or (2), which contains 1 to 25% by mass of the components (D) and (E) relative to the total amount of the oil-in-water emulsion composition. (4) The oil-in-water emulsion composition according to any one of (1) to (3), which contains 0.5 to 3 mass % of component (A) based on the total amount of the oil-in-water emulsion composition. (5) The oil-in-water emulsion composition according to any one of (1) to (4), wherein the component (B) is hydroxypropyl cellulose. (6) The oil-in-water emulsion composition according to any one of (1) to (5), wherein the component (C) is PEG / PPG-19 / 19 dimethicone. (7) The oil-in-water emulsion composition according to any one of (1) to (6), wherein the content of component (C) relative to the total amount of the oil-in-water emulsion composition is 1 mass % or less. (8) The oil-in-water emulsion composition according to any one of (1) to (7), which is a cosmetic composition.

[0010] According to the present invention, there is provided an oil-in-water emulsion composition that does not show unnatural opacity when spread on the skin, can provide brightness to the skin, and exhibits good stability.

[0011] According to one embodiment of the present invention, there is provided (A) (A1) a hydrophobic powder having a refractive index of 1.7 or more, or (A2) a powder obtained by hydrophobizing a hydrophilic powder having a refractive index of 1.7 or more, (B) a cellulose derivative having a hydroxyalkyl group, and (C) a cellulose derivative having the following formula (I): [ka] Polyether-modified silicone represented by the formula: [In the ceremony, A 1 , A 2 and n A's 3 may be the same or different and are a methyl group, a phenyl group, or General formula -C3H6O(C2H4O) a (C3H6O) b R' (wherein R' is a hydrogen atom, an acyl group, or an alkyl group having 1 to 4 carbon atoms, and a and b, which may be the same or different, are integers of 5 to 50.) and in formula (I), A is a polyoxyalkylene group represented by 1 , A2 and n A's 3 at least one of the groups is the polyoxyalkylene group; R is a methyl group or a phenyl group, m is an integer from 200 to 600; n is an integer from 1 to 40. An oil-in-water emulsion composition is provided, comprising (D) a powder-containing oil and (E) a powder-free oil. This oil-in-water emulsion composition comprises 0.4% by mass or more of component (A) based on the total amount of the oil-in-water emulsion composition, and 0.13% by mass or more of component (B) based on the total amount of the oil-in-water emulsion composition. Furthermore, component (D) in this oil-in-water emulsion composition comprises one or more oils selected from the group consisting of (i) dimethicone, methylphenylpolysiloxane, diphenylsiloxyphenyltrimethicone, and caprylyl methicone, (ii) cyclic silicone, and (iii) hydrocarbons, esters, and ethers having a molecular weight of 400 or less.

[0012] The oil-in-water emulsion composition of the present invention does not exhibit unnatural opacity when spread on the skin, and is capable of providing brightness to the skin. In order for the oil-in-water emulsion composition of the present invention to exhibit such effects, the oil-in-water emulsion composition of the present invention contains a powder with high hiding power, i.e., a powder with a high refractive index, specifically, component (A): (A1) a hydrophobic powder with a refractive index of 1.7 or more, or (A2) a powder obtained by hydrophobizing a hydrophilic powder with a refractive index of 1.7 or more. In this specification, the refractive index means the absolute refractive index.

[0013] As the component (A) of the present invention, any material commonly used as a cosmetic raw material can be used. Specifically, as the component (A1), a hydrophobic powder having a refractive index of 1.7 or higher can be used, for example, boron nitride (refractive index 1.7). As the component (A2), a hydrophobically treated hydrophilic powder having a refractive index of 1.7 or higher can be used, for example, a hydrophobically treated hydrophilic powder having a refractive index of 1.7 or higher (e.g., titanium oxide (refractive index 2.7 (rutile type) or 2.5 (anatase type)), iron oxide (refractive index 2.4), zinc oxide (refractive index 1.9), bismuth oxychloride (refractive index 2.2), etc.). In addition, composite powders of these, such as powders of titanium mica (refractive index 2.6) coated with these, can also be used as the component (A).

[0014] According to one preferred embodiment of the present invention, the component (A) of the present invention comprises the component (A2).

[0015] The hydrophobic treatment used in the present invention can be any treatment commonly used in the cosmetics industry, provided that it does not impair the effects of the present invention. Examples of such treatments include silicone treatments (treatments with silicone oils such as methylhydrogenpolysiloxane, dimethylpolysiloxane, and methylphenylpolysiloxane; alkylsilanes such as methyltrimethoxysilane, ethyltrimethoxysilane, hexyltrimethoxysilane, and octyltrimethoxysilane; and fluoroalkylsilanes such as trifluoromethylethyltrimethoxysilane and heptadecafluorodecyltrimethoxysilane), fatty acid treatments (treatments with palmitic acid, isostearic acid, stearic acid, lauric acid, myristic acid, behenic acid, oleic acid, rosin acid, and 12-hydroxystearic acid), fatty acid soap treatments (treatments with aluminum stearate, calcium stearate, and 12-hydroxystearic acid), and fatty acid ester treatments (treatments with dextrin fatty acid esters, cholesterol fatty acid esters, sucrose fatty acid esters, and starch fatty acid esters). These hydrophobic treatments can be carried out according to conventional methods.

[0016] The refractive index of the component (A1) in the present invention is not particularly limited as long as it is 1.7 or more, but is preferably 1.8 or more.

[0017] The refractive index of the hydrophilic powder of component (A2) in the present invention is not particularly limited as long as it is 1.7 or more, but is preferably 1.8 or more.

[0018] The shape of component (A) in the present invention is not particularly limited, but may be, for example, spherical, plate-like, or petal-like.

[0019] The size of component (A) in the present invention is not particularly limited, but its average particle diameter is preferably 150 nm to 20 μm. This average particle diameter refers to the particle size at 50% cumulative value in the particle size distribution. Measurement can be performed using a laser analysis particle size distribution analyzer, but other known methods (e.g., measurement by microscope observation and image analysis) may also be used. In such measurements, if the shape is spherical, the diameter (outer diameter) is taken as the particle size, and if the shape is non-spherical, including irregular shapes, the longest point of the shape may be taken as the particle size.

[0020] The amount of component (A) in the oil-in-water emulsion composition of the present invention is not particularly limited as long as it is 0.4% by mass or more based on the total amount of the oil-in-water emulsion composition, but the amount based on the total amount of the oil-in-water emulsion composition is preferably 0.5 to 3% by mass.

[0021] The component (B) contained in the oil-in-water emulsion composition of the present invention is a cellulose derivative having a hydroxyalkyl group, such as hydroxyethyl cellulose or hydroxypropyl cellulose.

[0022] According to one preferred embodiment of the present invention, the component (B) in the present invention is a cellulose derivative having a hydroxypropyl group, more preferably hydroxypropyl cellulose.

[0023] The amount of component (B) in the oil-in-water emulsion composition of the present invention is not particularly limited as long as it is 0.13% by mass or more based on the total amount of the oil-in-water emulsion composition, but is preferably 0.13 to 1% by mass from the viewpoint of ensuring a good feel to the touch, etc.

[0024] The component (C) contained in the oil-in-water emulsion composition of the present invention is a compound represented by the following formula (I): [ka] Polyether-modified silicone represented by the formula: [In the ceremony, A 1 , A 2 and n A's 3 may be the same or different and are a methyl group, a phenyl group, or General formula -C3H6O(C2H4O) a (C3H6O) b R' (wherein R' is a hydrogen atom, an acyl group, or an alkyl group having 1 to 4 carbon atoms, and a and b, which may be the same or different, are integers of 5 to 50.) and in formula (I), A is a polyoxyalkylene group represented by 1 , A 2 and n A's 3 at least one of the groups is the polyoxyalkylene group; R is a methyl group or a phenyl group, m is an integer from 200 to 600; and n is an integer of 1 to 40.

[0025] In one molecule of such polyether-modified silicone, A 1 , A 2 and n A's 3 At least one of the following can be taken as the general formula -C3H6O(C2H4O) a (C3H6O) bExamples of acyl groups that R' in the polyoxyalkylene group represented by R' can take include formyl, acetyl, propionyl, butyryl, acryloyl, benzoyl, toluoyl, etc. Examples of alkyl groups having 1 to 4 carbon atoms that R' can take include methyl, ethyl, i-propyl, n-propyl, t-butyl, n-butyl, etc.

[0026] In addition, in such polyether-modified silicone (I), the general formula -C3H6O(C2H4O) a (C3H6O) b The content of the polyoxyalkylene group represented by R' is preferably 20 to 70 mass % (excluding 20 mass %) relative to the polyether-modified silicone (I).

[0027] Furthermore, the molecular weight of such polyether-modified silicone (I) is not particularly limited, and neither is its viscosity, but the molecular weight is preferably 45,000 to 100,000, more preferably 50,000 to 80,000, and the viscosity is preferably 1,000 to 100,000 cst (at 25°C) when the polyether-modified silicone (I) is made into a 50% by mass solution in octamethyltetrasiloxane. Such polyether-modified silicones are known as gelling agents, and are described, for example, in JP-A-5-311076.

[0028] According to one preferred embodiment of the present invention, component (C) in the present invention is PEG / PPG-19 / 19 dimethicone.

[0029] The amount of component (C) in the oil-in-water emulsion composition of the present invention is not particularly limited, but the amount is preferably 1 mass % or less relative to the total amount of the oil-in-water emulsion composition.

[0030] The component (D) contained in the oil-in-water emulsion composition of the present invention is a powder-containing oil. In the present invention, the term "powder-containing oil" refers to an oil containing the component (A). The component (D) in the present invention includes one or more oils selected from the group consisting of (i) dimethicone, methylphenylpolysiloxane, diphenylsiloxyphenyltrimethicone, and caprylyl methicone, (ii) cyclic silicone, and (iii) hydrocarbons, esters, and ethers having a molecular weight of 400 or less.

[0031] According to a preferred embodiment of the present invention, the component (D) in the present invention contains one or more oils selected from the group consisting of (i) dimethicone, methylphenylpolysiloxane, diphenylsiloxyphenyl trimethicone, and caprylyl methicone, (ii) cyclic silicone, and (iii) hydrocarbons, esters, and ethers having a molecular weight of 400 or less, in an amount of 40% by mass or more, and more preferably 60% by mass or more, based on the total amount of component (D) in the oil-in-water emulsion composition of the present invention.

[0032] According to one embodiment of the present invention, component (D) comprises (i) one or more selected from the group consisting of dimethicone, methylphenylpolysiloxane, diphenylsiloxyphenyl trimethicone, and caprylyl methicone.

[0033] According to one embodiment of the present invention, component (D) comprises (ii) a cyclic silicone.

[0034] According to one embodiment of the present invention, component (D) includes (iii) one or more members selected from the group consisting of hydrocarbons, esters, and ethers, each having a molecular weight of 400 or less.

[0035] The amount of component (D) in the oil-in-water emulsion composition of the present invention is not particularly limited, but is preferably 1 to 5 mass %, more preferably 1.2 to 4.5 mass %, relative to the total amount of the oil-in-water emulsion composition. Here, the amount of component (D) means the amount of oil only, and does not include the amount of component (A).

[0036] The component (E) contained in the oil-in-water emulsion composition of the present invention is a powder-free oil. In the present invention, the powder-free oil refers to an oil that does not contain the component (A). Such an oil is not particularly limited as long as it is generally used as a raw material for cosmetics and the like, and examples thereof include silicone oil, hydrocarbon oil, ester oil, ether oil, higher alcohol having 12 to 22 carbon atoms, fatty acid having 12 to 22 carbon atoms, and fats and oils.

[0037] The component (D) and the component (E) in the oil-in-water emulsion composition of the present invention may be the same, may be partially the same, or may be different.

[0038] The total amount of components (D) and (E) in the oil-in-water emulsion composition of the present invention is not particularly limited, but is preferably 1 to 25% by mass based on the total amount of the oil-in-water emulsion composition. Here, the amount of component (D) means the amount of oil only and does not include the amount of component (A).

[0039] The method for producing the oil-in-water emulsion composition of the present invention is not particularly limited, but preferably includes the steps of preparing a mixture by mixing components (A) and (D) (hereinafter referred to as step (a)), and adding the mixture to a solution containing water and stirring the mixture (hereinafter referred to as step (b)). In this specification, the phase containing the mixture prepared in step (a) is referred to as the powder-dispersed phase. The powder-dispersed phase may further contain other components such as components (B) and (C), but does not contain component (E). Component (E) may be added in step (b), or may be added in advance to the solution containing water.

[0040] According to one embodiment of the present invention, a method for producing an oil-in-water emulsion composition of the present invention comprises: (i) a step of preparing a mixture by mixing component (A), component (B), component (C), and component (D); and (ii) a step of adding the mixture to a solution containing water and stirring the mixed solution to which the mixture has been added; and preferably, the solution containing water in step (ii) further contains component (E).

[0041] The water-in-oil emulsion composition of the present invention may further contain, as necessary, optional additive components that are typically incorporated into cosmetics, etc., within the scope of not impairing the effects of the present invention. Examples of such additive components include powders, coating agents, thickeners, drugs, sequestering agents, lower alcohols, polyhydric alcohols, antioxidants, preservatives, fragrances, etc.

[0042] The water-in-oil emulsion composition of the present invention may be liquid, semi-solid, or solid.

[0043] The water-in-oil emulsion composition of the present invention may be used as a cosmetic composition. The cosmetic composition in the present invention means a composition used for the purpose of applying makeup.

[0044] When the water-in-oil emulsion composition of the present invention is used as a cosmetic composition, it can be made into, for example, a lotion, a milky lotion, a beauty serum, a cream, a massage cosmetic, a sunscreen cosmetic, a makeup base, a foundation, a lipstick, a blush, an eye shadow, a hand cream, etc. [Example]

[0045] The present invention will be described in detail based on the following examples, but the present invention is not limited to these examples. Contents are expressed in mass % unless otherwise specified.

[0046] First, we selected oils that can be used in the powder dispersed phase. Candidates for oils that can be used in the powder dispersed phase include undecane / tridecane, hydrogenated polyisobutene (C13-14), isohexadecane, hydrogenated polyisobutene (C24), animal paraffin E, sugar squalane, glyceryl triisostearate, hydrogenated polydecene, isodecyl neopentanoate, diisobutyl adipate, isopropyl myristate, diisopropyl sebacate, diethylhexyl succinate, PPG-3 dipivalate, and ethyl Gels were prepared using cetyl hexanoate, caprylic / capric triglyceride, neopentyl glycol dicaprate, triethylhexanoin, pentaerythrityl tetraethylhexanoate, octyl methoxycinnamate, octocrylene, diphenylsiloxyphenyl trimethicone, caprylyl methicone, dimethicone (2 cs), dimethicone (6 cs), dimethicone (20 cs), or dimethicone (100 cs).

[0047] The appearance and viscosity of the prepared gels were evaluated, and the gels prepared using undecane-tridecane, hydrogenated polyisobutene (C13-14), isohexadecane, isodecyl neopentanoate, isopropyl myristate, diethylhexyl succinate, PPG-3 dipivalate, diphenylsiloxyphenyl trimethicone, caprylyl methicone, dimethicone (2cs), or dimethicone (6cs) as the oils used in the powder dispersed phase exhibited good appearance and viscosity. These oils were therefore considered suitable for use in the powder dispersed phase.

[0048] Next, 500 g of oil-in-water emulsion compositions of each Example and Comparative Example were prepared according to the formulations shown in Tables 1 to 3. In Tables 1 to 3, the blending ratio of each component is in mass %. The refractive index of the hydrophobic powder or hydrophilic powder in component (A) was the same as the value specifically described as the refractive index of each component in this specification.

[0049] The oil-in-water emulsion compositions prepared above were evaluated for composition stability, light transmittance of the liquid film, and brightness of the applied skin according to the procedures described below.

[0050] Evaluation of composition stability (presence or absence of powder aggregation after stirring test) Half of the prepared compositions of each Example and Comparative Example were placed in a 50 mL glass sample bottle (screw tube No. 7, manufactured by Maruemu), rotated at 45 revolutions per minute, and the state after 4 hours was evaluated according to the following evaluation criteria to evaluate the stability of each composition. <Evaluation criteria> A: No powder agglomerates are visible to the naked eye. B: Powder agglomerates are visible to the naked eye.

[0051] Evaluation of light transmittance of liquid films The light transmittance of the liquid film of each of the compositions prepared in Examples and Comparative Examples was measured using a spectrophotometer (U-4100, HITACHI) at wavelengths in the visible light region in a thin film state. Two cover glasses (C218181, Matsunami) were placed on either end of a first glass slide (microslide glass, S1214, Matsunami), and an appropriate amount of base was dropped between them. A second glass slide was then placed on top and tightly adhered to create a coating film with the thickness of the cover glass (median value 0.15 mm). During measurement, the cover glasses were fixed near both ends with parafilm to prevent them from falling off. Using a coating film of purified water as the baseline, the transmittance of wavelengths from 400 nm to 700 nm was measured at 2 nm intervals. The average of these values ​​was taken as the visible light transmittance (light transmittance (%)).

[0052] Evaluation of the brightness of the applied skin The brightness of the skin to which each of the prepared compositions of Examples and Comparative Examples was applied was evaluated visually by three expert sensory evaluators according to the following criteria. This evaluation was a comprehensive evaluation by the three expert sensory evaluators. <Evaluation criteria> A: A clear increase in brightness is observed compared to the skin color before application. B: Increase in brightness is observed compared to skin color before application. C: No increase in brightness is observed compared to the skin color before application.

[0053] The results are shown in Tables 1 to 3.

[0054] [Table 1]

[0055] [Table 2]

[0056] [Table 3]

[0057] The results in Tables 1 to 3 show that the oil-in-water emulsion compositions of Examples 1 to 4 all had good light transmittance of 50% or more, and the stability of the compositions and the brightness of the skin to which they were applied were also good. On the other hand, the oil-in-water emulsion compositions of Comparative Examples 1 to 4 either had a light transmittance of less than 50%, or had a good light transmittance of 50% or more, but the stability of the compositions and the brightness of the skin to which they were applied were not good. From the above, it was demonstrated that the oil-in-water emulsion compositions of the present invention have excellent effects, being good in both light transmittance and stability.

[0058] Other prescriptions Below are formulation examples of emulsions, serums, makeup bases, hand creams, and creams that fall within the scope of the oil-in-water emulsion composition of the present invention. Unless otherwise specified, the ingredients used in the following formulation examples are the same as those described above.

[0059] Example 5: Emulsion An example of the formulation of an emulsion within the scope of the oil-in-water emulsion composition of the present invention is shown below as Example 5. 7 to 25 and 30 were heated to 70°C and dissolved, and then a mixture of 1 and a portion of 35 heated to 65°C was added, followed by stirring and mixing. Separately, the remaining 35 was homogenously mixed with 2 to 8, 30, 31, 33, and 34, and then a dispersed mixture of 26 to 29 was added and emulsified using a homogenizer. These were stirred and mixed to obtain an emulsion within the scope of the oil-in-water emulsion composition of the present invention. [Table 4]

[0060] Example 6: Serum An example of a formulation for a beauty serum within the scope of the oil-in-water emulsion composition of the present invention is shown below as Example 6. 1-17 were added to 28 and mixed uniformly, and then 26 was added to neutralize it. 2% of 22 and 23-25, which had been dispersed and mixed, were added and emulsified by stirring. A uniform mixture of 18-21 and 3% of 22 was then added and emulsified using a homogenizer, yielding a beauty serum within the scope of the oil-in-water emulsion composition of the present invention. [Table 5]

[0061] Example 7: Makeup base An example of a makeup base formulation within the scope of the oil-in-water emulsion composition of the present invention is shown below as Example 7. First, a dissolved part was prepared by mixing a portion of 32 with 28 and 29. 1-11, 30, and 31 were added to the remaining 32 and mixed, and then 12 was added and uniformly dispersed, followed by heating to 70°C. 18-27, which had been heated and dissolved at 80°C, were added and dispersed using a homogenizer, and then 13-17, which had been dispersed and mixed, were added and dispersed again using a homogenizer. The first dissolved part was then added, and the mixture was cooled to 35°C, yielding a makeup base within the scope of the oil-in-water emulsion composition of the present invention. [Table 6]

[0062] Example 8: Hand Cream An example of a hand cream formulation within the scope of the oil-in-water emulsion composition of the present invention is shown below as Example 8. Components 1-14, 20, and 21 were mixed with component 23 to make a homogeneous mixture, and components 16-19 and 22, which had been dispersed and mixed using a homogenizer, were added and mixed by stirring. Component 15 was then added and mixed using a homogenizer to obtain a hand cream within the scope of the oil-in-water emulsion composition of the present invention. [Table 7]

[0063] Example 9: Cream An example of a cream formulation within the scope of the oil-in-water emulsion composition of the present invention is shown below as Example 9. Components 1 to 13 were uniformly mixed with component 32 and heated to 70°C. Components 14 to 23 were heated to 80°C and dissolved, and then added and mixed. Components 24 to 28 were then dispersed and mixed using a homogenizer and added. Components 29 to 31 were then added, and the mixture was stirred and mixed using a homogenizer and cooled to 30°C to obtain a cream within the scope of the oil-in-water emulsion composition of the present invention. [Table 8]

Claims

1. (A) (A1) a hydrophobic powder having a refractive index of 1.7 or more, or (A2) a hydrophilic powder having a refractive index of 1.7 or more, which has been subjected to a hydrophobic treatment; (B) a cellulose derivative having a hydroxyalkyl group, (C) Formula (I): 【Chemistry 1】 Polyether-modified silicone represented by the formula: [In the formula, A １ , A ２ and n A's ３ may be the same or different and are a methyl group, a phenyl group, or General form - C ３ H ６ O(C) ２ H ４ O) ａ (C) ３ H ６ O) ｂ R' (wherein R' is a hydrogen atom, an acyl group, or an alkyl group having 1 to 4 carbon atoms, and a and b may be the same or different and are integers of 5 to 50.) and in formula (I), A is a polyoxyalkylene group represented by １ , A ２ and n A's ３ at least one of the groups is the polyoxyalkylene group; R is a methyl group or a phenyl group; m is an integer from 200 to 600, n is an integer from 1 to 40. (D) an oil-containing powder; and (E) Powder-free oil content An oil-in-water emulsion composition comprising: The component (A) is contained in an amount of 0.4% by mass or more based on the total amount of the oil-in-water emulsion composition, The component (B) is contained in an amount of 0.13% by mass or more based on the total amount of the oil-in-water emulsion composition, The component (D) is (i) dimethicone, methylphenylpolysiloxane, diphenylsiloxyphenyl trimethicone, and caprylyl methicone; (ii) cyclic silicones, and (iii) Hydrocarbons, esters, and ethers with a molecular weight of 400 or less Contains one or more oils selected from the group consisting of: composition.

2. 2. The oil-in-water emulsion composition according to claim 1, comprising component (D) in an amount of 1 to 5% by mass based on the total amount of the oil-in-water emulsion composition.

3. 2. The oil-in-water emulsion composition according to claim 1, comprising 1 to 25% by mass of component (D) and component (E) based on the total amount of the oil-in-water emulsion composition.

4. 2. The oil-in-water emulsion composition according to claim 1, comprising component (A) in an amount of 0.5 to 3 mass % based on the total amount of the oil-in-water emulsion composition.

5. 2. The oil-in-water emulsion composition according to claim 1, wherein component (B) is hydroxypropyl cellulose.

6. 2. The oil-in-water emulsion composition according to claim 1, wherein component (C) is PEG / PPG-19 / 19 dimethicone.

7. 2. The oil-in-water emulsion composition according to claim 1, wherein the content of component (C) relative to the total amount of the oil-in-water emulsion composition is 1 mass % or less.

8. The oil-in-water emulsion composition according to any one of claims 1 to 7, which is a cosmetic composition.

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