JP6587604B2 - Oil-in-water emulsion composition - Google Patents

Description

  The present invention relates to an oil-in-water emulsion composition.

  In skin care products, various oils are used to provide high moisture occlusiveness to the skin. The oil agent is considered to form a film on the skin to prevent moisture evaporation from the skin and to maintain a moisturizing feeling. However, when an oil agent is blended in a skin care product, an unfavorable skin sensation such as a greasy and sticky feel is produced.

  On the other hand, water-swellable clay minerals such as bentonite are widely applied to emulsified cosmetics from the viewpoint of increasing the viscosity of the composition, giving a smooth feeling of use, and improving emulsification stability. For example, Patent Document 1 discloses a specific polyglycerin fatty acid ester, a specific polyhydric alcohol, and a water-swellable clay mineral as a stable oil-in-water emulsion composition with a refreshing feel and excellent water resistance. A composition containing is disclosed. Patent Document 2 discloses a water-swellable clay mineral and a polysilicic acid as well as a hydrocarbon oil and an oligosaccharide as an oil-in-water emulsion composition for the purpose of improving the stability of freezing, moist feeling, and freeze / recovery stability. An oil-in-water skin cosmetic containing glycerin fatty acid ester in a specific ratio is disclosed.

  Patent Document 3 discloses that a gel-like composition containing a water-swellable clay mineral, an organic acid and polyethylene glycol having a specific average molecular weight in a specific ratio is separated from water separation and water-swellable clay minerals over time. It is disclosed that metal elution does not occur and there is no stickiness just before drying.

JP 2003-192532 A JP 2012-184167 A JP 2012-102060 JP

  However, oil-in-water emulsion compositions containing conventional water-swellable clay minerals including the compositions described in Patent Documents 1 to 3 are not sufficient in high-temperature stability and low-temperature stability. Although a smooth film feeling can be obtained, it was not satisfactory in terms of effects such as a long-lasting moisturizing feeling. Therefore, the present invention contains a water-swellable clay mineral, and in addition to stability such as high-temperature stability and low-temperature stability, it also has a good feeling of use such as durability of moisture retention, smoothness, and lack of stickiness. The present invention relates to an oil-in-water emulsion composition.

  The inventors of the present invention provide an oil-in-water emulsion composition comprising a water-swellable clay mineral, a polyglycerin fatty acid ester, and an oil agent and a highly polymerized polyalkylene glycol having a specific number average molecular weight. The present invention has been completed by finding that it is excellent in stability and low-temperature stability and has a good feeling of use such as a long-lasting moisturizing feeling.

The present invention provides an oil-in-water emulsion composition containing the following components (A) to (E).
(A) Water-swellable clay mineral
(B) Polyglycerin fatty acid ester with HLB of 4.5 or more
(C) Oil
(D) Water
(E) Highly polymerized polyalkylene glycol having a number average molecular weight of 950 or more

  The oil-in-water emulsified composition containing the water-swellable clay mineral of the present invention has good stability such as high temperature stability, low temperature stability, etc., as well as long-lasting moisturizing feeling, smoothness, and no stickiness. It also has a feeling of use.

[Component (A): Water-swellable clay mineral]
In this specification, “water swellability” refers to the swelling represented by the swelling volume (cm ³ ) of 2.0 g of clay mineral, applying the test method for the swelling power of bentonite stipulated in the 15th revised Japanese Pharmacopoeia. The force is 20 cm ³ / 2g or more.

  Component (A) water-swellable clay minerals include bentonite (including natural and synthetic bentonite), montmorillonite (including natural and synthetic montmorillonite), beidellite, nontronite, laponite, sauconite, hectorite (natural and synthetic hectorite) And smectite group clay minerals such as stevensite, vermiculite, swellable synthetic fluorine mica (Na-type, Li-type synthetic mica), and swellable mica. Among these, one kind selected from bentonite, montmorillonite, beidellite, nontronite, laponite and hectorite from the viewpoint of improving the high temperature stability, low temperature stability and smoothness, and improving the feeling of use such as lack of squeaking It is preferable that 2 or more types are included, and it is more preferable that 1 type or 2 types selected from bentonite and montmorillonite are included.

  Specific water-swellable clay minerals include Polagel (made by American Colloid Co., Ltd.), Laponite (made by Nippon Silica Co., Ltd.), Wenger (made by Toyoshun Mining Co., Ltd.), Lucentite (made by Corp Chemical Co.), Kunipia (Kunimine Industries Co., Ltd.) Manufactured), Smecton SA (manufactured by Kunimine Kogyo Co., Ltd.), Benclay (manufactured by Mizusawa Chemical Co., Ltd.), Bee Gum (manufactured by Vanderbilt Co., Ltd.), and the like.

  The average particle size of the water-swellable clay mineral is preferably 1 nm or more, more preferably 5 nm or more, still more preferably 10 nm or more, and preferably 5000 nm or less, more preferably 3000 nm or less when dispersed in water. More preferably, it is 1500 nm or less. The average particle size of the water-swellable clay mineral here refers to the median diameter (accumulated particle amount is 50% by volume) measured by a laser diffraction method of the water-swellable clay mineral dispersed in 50 mass times of water. Particle diameter) and can be measured with a Shimadzu laser diffraction particle size distribution analyzer SALD-2200.

  The content of the component (A) in the oil-in-water emulsion composition of the present invention is preferably 0.01% by mass or more from the viewpoint of improving high temperature stability, suppressing stickiness and improving the sustainability of moisturizing feeling. More preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, further preferably 0.3% by mass or more, and preferably 5.0% by mass or less, more preferably 4.0% by mass or less, still more preferably 2.0% by mass. Hereinafter, it is more preferably 1.7% by mass or less.

[Component (B): Polyglycerol fatty acid ester]
From the viewpoint of improving high temperature stability and low temperature stability, HLB of polyglycerin fatty acid ester is required to be 4.5 or more, preferably 5.0 or more, more preferably 5.5 or more, more preferably 5.8 or more, and preferably 16.0 or less, more preferably 13.0 or less, still more preferably 12.5 or less. One or more polyglycerol fatty acid esters can be used.

In the present invention, the HLB of the polyglycerin fatty acid ester is a weighted average value of the HLBs of the individual compounds when two or more polyglycerin fatty acid esters are used in combination.
HLB (Hydrophile-Lipophile Balance) is an index that represents the ratio of the relative affinity of a surfactant to both liquids in an oil-water system, and means HLB at 25 ° C. according to the definition of griffin (GRIFFIN). HLB by Griffin is defined in J. Soc. Cosm. Chem., 1954, 5: 249-256.

  The average degree of glycerol polymerization of the polyglycerol fatty acid ester is preferably 2 or more, more preferably 4 or more, still more preferably 6 or more, and preferably 20 or less, from the viewpoint of improving high-temperature stability and low-temperature stability. More preferably, it is 15 or less, and more preferably 12 or less. Further, the constituent fatty acid of the polyglycerol fatty acid ester may be either saturated or unsaturated, and the carbon number thereof is preferably 2 or more, more preferably 12 or more, and preferably 22 or less, more preferably 18 or less. is there. In addition, the esterification rate of the polyglycerol fatty acid ester (esterification rate with respect to all hydroxy groups) is preferably 4% or more, more preferably 5% or more, and still more preferably 8% or more, from the viewpoint of improving the feeling of use. Further, it is preferably 75% or less, more preferably 60% or less, and still more preferably 50% or less.

  Specific polyglycerin fatty acid esters include polyglyceryl-10 stearate, polyglyceryl-10 distearate, polyglyceryl-10 tristearate, polyglyceryl-10 pentastearate, polyglyceryl-10 oleate, polyglyceryl-10 isostearate, diisostearic acid Polyglyceryl-10, polyglyceryl-10 myristate, polyglyceryl-10 laurate, polyglyceryl-4 stearate, polyglyceryl-6 stearate, polyglyceryl-2 stearate, etc. Among these, high temperature stability, low temperature stability From the viewpoint of improving the quality, it is preferable to include one or more selected from hexaglycerin fatty acid ester, octaglycerin fatty acid ester and decaglycerin fatty acid ester, and polyglyceryl-10 monomyristate, di Stearate polyglyceryl-10, and more preferably contains one or more selected from tristearate polyglyceryl-10 and polyglyceryl diisostearate -10.

  The content of the component (B) in the oil-in-water emulsion composition of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and still more preferably, from the viewpoint of improving high temperature stability and low temperature stability. Is 0.1% by mass or more, more preferably 0.3% by mass or more, preferably 5.0% by mass or less, more preferably 4.0% by mass or less, still more preferably 2.0% by mass or less, and further preferably 1.7% by mass or less. .

  The mass ratio (A) / (B) of the component (A) to the component (B) in the oil-in-water emulsion composition of the present invention improves the high temperature stability, suppresses stickiness, and maintains the moisturizing feeling. From the viewpoint of improving, it is preferably 0.1 or more, more preferably 0.15 or more, still more preferably 0.20 or more, preferably 10.0 or less, more preferably 8.0 or less, and still more preferably 5.0 or less.

[Component (C): Oil agent]
Examples of the oil agent of component (C) include hydrocarbons, waxes, ester oils, ether oils, higher alcohols, higher fatty acids, silicone oils and the like.

  Among these, the oil agent of component (C) preferably includes those having a melting point of 30 ° C. or higher and 65 ° C. or lower from the viewpoint of improving the sustainability of the moisturizing feeling. In addition, the measuring method of melting | fusing point is based on the 3rd method described in cosmetics raw material reference | standard.

  Oils having a melting point of 30 ° C. or more and 65 ° C. or less include hydrocarbons such as petrolatum (melting point: 36-60 ° C.); beeswax (melting point 64 ° C.), jojoba wax (melting point 55 ° C.), mole (melting point 55 ° C.), Jojoba fat (melting point 46-54 ° C), wax such as lanolin (melting point 37-43 ° C); hydrogenated palm oil (melting point 65 ° C), shea fat (melting point 32-40 ° C), cetyl palmitate (melting point 50 ° C) , Dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) (melting point 38 ° C.), tri (capryl, caprin, myristic stearic acid) glyceryl (melting point 40 ° C.), macadamia nut oil fatty acid phytosteryl (melting point 45 ° C.) , Ester oils such as long-chain branched fatty acid (C12-31) cholesteryl (melting point 45-60 ° C); ether oils such as chimyl alcohol (melting point 60.5-61.5 ° C); myristyl alcohol (melting point 37.6 ° C), cetylua Linear and saturated aliphatic alcohols having 14 to 19 carbon atoms such as rucol (melting point 49.3 ° C), stearyl alcohol (melting point 58 ° C); capric acid (melting point 31 ° C), lauric acid (melting point 44.2 ° C), myristic acid (Melting point: 53.9 ° C.), palmitic acid (melting point: 63.1 ° C.) and the like, and straight-chain and saturated fatty acids having 10 to 17 carbon atoms.

  In the component (C), that is, the ratio of the oil agent having a melting point of 30 ° C. or more and 65 ° C. or less in the whole oil agent is preferably 10% by mass or more from the viewpoint of suppressing stickiness and improving the sustainability of the moisturizing feeling. Preferably it is 15% by mass or more, more preferably 20% by mass or more, more preferably 30% by mass or more, more preferably 40% by mass or more, and preferably 90% by mass or less from the viewpoint of improving low-temperature stability. More preferably, it is 85 mass% or less, More preferably, it is 80 mass% or less.

  Among the components (C), as the oil agent having a melting point of less than 30 ° C., hydrocarbon oils such as mineral oil, hydrogenated polydecene, α-olefin oligomer, liquid isoparaffin, liquid paraffin, squalane; glyceryl trioctanoate, avocado oil, olive oil , Sesame oil, rice bran oil, safflower oil, soybean oil, corn oil, rapeseed oil, castor oil, cottonseed oil, mink oil and other triglycerides; fatty acids such as oleic acid and isostearic acid; isopropyl myristate, butyl myristate, isopropyl palmitate , Ethyl oleate, ethyl linoleate, isopropyl linoleate, cetyl caprylate, hexyl laurate, decyl myristate, decyl oleate, oleyl oleate, isostearyl laurate, isotridecyl myristate, isoristyl myristate Chill, isostearyl myristate, octyldodecyl myristate, octyl palmitate, isocetyl palmitate, isostearyl palmitate, propylene glycol dioleate, isodecyl oleate, isopropyl isostearate, cetyl 2-ethylhexanoate, 2-ethylhexanoic acid Stearyl, propylene glycol dicaprate, propylene glycol dioleate, glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / caprate), isononyl isononanoate, diisopropyl sebacate, propylene glycol isostearate, triethylhexanoin, dilauroyl glutamate ( Ester oil such as phytosteryl / octyldodecyl; dimethicone, dimethylpolysiloxane, decamethyltetrasiloxa And silicone oil such as dodecamethylpentasiloxane and methylphenylpolysiloxane.

  In addition, among the components (C), as an oil agent having a melting point exceeding 65 ° C., hydrocarbons such as microcrystalline wax and ceresin; carnauba wax, candelilla wax, rice bran wax, hydrogenated jojoba oil, hydrogenated castor oil, hydrogenated palm oil And ester oils such as hardened coconut oil and glyceryl behenate; higher alcohols such as aralkyl alcohol, behenyl alcohol and carnervir alcohol; higher fatty acids such as stearic acid, behenic acid and 12-hydroxystearic acid.

  The content of the component (C) in the oil-in-water emulsion composition of the present invention is preferably 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more, from the viewpoint of improving stability. More preferably, it is 3% by mass or more, preferably 20% by mass or less, more preferably 16% by mass or less, still more preferably 12% by mass or less, and further preferably 8% by mass or less.

[Component (D): Water]
The content of water (D) in the oil-in-water emulsion composition of the present invention is preferably 50% by mass or more, more preferably from the viewpoint of improving the smooth feel and the sustainability of the moisturizing feeling and suppressing the sticky feeling. Is 60% by mass or more, more preferably 70% by mass or more, preferably 99% by mass or less, more preferably 97% by mass or less, and still more preferably 95% by mass or less.

[Component (E): Highly polymerized polyalkylene glycol having a number average molecular weight of 950 or more]
The number of carbon atoms of the alkylene group in the polyalkylene glycol of component (E) is preferably 2 to 4, more preferably 2 or 3, and even more preferably 2 from the viewpoint of improving high temperature stability and low temperature stability. As a specific alkylene group, an ethylene group and a propylene group are preferable, and an ethylene group is more preferable. That is, the component (E) preferably includes polyethylene glycol and polypropylene glycol, and more preferably includes polyethylene glycol.

  The number average molecular weight of the component (D) polyalkylene glycol is 950 or more from the viewpoint of improving high temperature stability, low temperature stability and smoothness, preferably 1,000 or more, more preferably 2,000 or more, still more preferably. It is 2,500 or more, preferably 30,000 or less, more preferably 25,000 or less, and further preferably 22,000 or less.

  In addition, the number average molecular weight of polyalkylene glycol can be measured by the terminal group determination method, specifically, the hydroxyl value obtained by titration, by the average molecular weight test described in the quasi-drug material specification.

  As the component (E), commercially available products can be used. For example, PEG # 1000, PEG # 1540, PEG # 2000, PEG # 4000, PEG # 6000, PEG # 11000, PEG # 20000 (all manufactured by NOF Corporation) Etc. can be used. These polyalkylene glycols can be used alone or in combination of two or more.

  The content of the component (E) in the oil-in-water emulsion cosmetic of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and still more preferably from the viewpoint of improving high-temperature stability and smoothness. 1.0 mass% or more, more preferably 3.0 mass% or more, and from the viewpoint of suppressing low temperature stability and stickiness, preferably 12.0 mass% or less, more preferably 10.0 mass% or less, and still more preferably 9.0 mass% Hereinafter, it is more preferably 7.0% by mass or less.

(Water-soluble polymer)
Examples of the water-soluble polymer include water-soluble cationic polymers, anionic polymers, nonionic polymers, amphoteric polymers, and bipolar polymers.

  Specific examples of the cationic polymer include hydroxyethyl cellulose (polyquaternium-10) having a chloride O- [2-hydroxy-3- (trimethylammonio) propyl] group and (vinylpyrrolidone-dimethylaminomethylethyl methacrylate). Examples thereof include a polymer diethyl sulfate (polyquaternium-11), a methyl vinyl imidazolium chloride / vinyl pyrrolidone copolymer, and the like.

  Specific examples of the anionic polymer include carboxyvinyl polymer, carboxymethylcellulose, carrageenan, xanthan gum, polystyrene sulfonate, agar, gatch gum, caraya gum, pectin, alginate salt, and also acrylic acid / alkyl methacrylate copolymer (acrylic). Acid Na / acryloyldimethyltaurine Na) copolymer, hyaluronic acid or alkali metal salts thereof.

Specific examples of nonionic polymers include cellulose ethers (hydroxybutylmethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, ethylhydroxyethylcellulose, hydroxyethylcellulose, etc.), propylene glycol alginate, polyacrylamide, poly (ethylene oxide) , Polyvinyl alcohol, polyvinyl pyrrolidone, amylose, hydroxyethyl amylose, and mixtures thereof.
Specific examples of the amphoteric polymer or the bipolar polymer include octylacrylamide / acrylate / butylaminoethyl methacrylate copolymer, polyquaternium-47, and polyquaternium-43.

  These can be used alone or in appropriate combination of two or more. Carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, xanthan gum, hydroxypropyl methylcellulose, polyacrylamide, (Na acrylate / acryloyl dimethyl taurine Na) copolymer, and hyaluron from the viewpoint of suppressing stickiness and improving stability over time It is preferable to include one or more selected from acids or alkali metal salts thereof, and to include one or more selected from carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, and xanthan gum. Is more preferable, and it is more preferable that one or more selected from a carboxyvinyl polymer and an acrylic acid / alkyl methacrylate copolymer are included.

  From the above viewpoint, the content of the water-soluble polymer in the oil-in-water emulsion composition of the present invention is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, further preferably 0.05% by mass or more, and 0.1% by mass. % Or more is more preferable, 3.0 mass% or less is preferable, 1.5 mass% or less is more preferable, 1.0 mass% or less is further more preferable, and 0.6 mass% or less is still more preferable.

[Other optional ingredients]
In the oil-in-water emulsion composition of the present invention, in addition to the above components, surfactants other than the component (B), polyhydric alcohols, plant extracts, Vitamins, antioxidants, antibacterial and antiseptics, anti-inflammatory agents, insect repellents, physiologically active ingredients, antiperspirants, salts, chelating agents, neutralizing agents, pH adjusters, fragrances, etc. The raw material can be contained. Each of these agents is not limited to the use as each agent, but can be diverted to other uses according to the purpose, for example, using an antiperspirant as a fragrance, or combined with other uses, for example, antiperspirant. It can be used as an agent and an effect as a fragrance.

  As the surfactant other than the component (B), known ones such as an anionic surfactant, a cationic surfactant, a nonionic surfactant other than the component (B), and an amphoteric surfactant can be used. Since skin irritation may occur and stability over time of the oil-in-water emulsion composition may decrease, the anionic surfactant, cationic surfactant and amphoteric interface in the oil-in-water emulsion composition of the present invention The content of the activator is preferably 1% by mass or less, more preferably 0.5% by mass or less, still more preferably 0.2% by mass or less, still more preferably 0.1% by mass or less, and still more preferably substantially not contained.

  Examples of the nonionic surfactant other than the component (B) include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, and the like. And polyoxyethylene glycol type nonionic surfactants, glycerin fatty acid esters, mono fatty acid sorbitans such as sorbitan monostearate, and sucrose fatty acid esters.

  Among these, from the viewpoint of low irritation and less stickiness, one or more selected from polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, and mono fatty acid sorbitan are preferable. .

  The content of the nonionic surfactant other than the component (B) in the oil-in-water emulsion composition of the present invention is low irritation, less sticky, and better elongation on the skin, 0.01 mass% or more is preferable, 0.1 mass% or more is more preferable, 0.2 mass% or more is further preferable, 3 mass% or less is preferable, 2 mass% or less is more preferable, and 1.5 mass% or less is still more preferable.

〔viscosity〕
The viscosity at 25 ° C. of the oil-in-water emulsion composition of the present invention is preferably 30,000 mPa · s or less, more preferably 25,000 mPa · s or less, more preferably 20,000 mPa · s or less, from the viewpoint of improving low-temperature stability. More preferably, it is 18,000 mPa · s or less, and from the viewpoint of improving high-temperature stability, preferably 1,000 mPa · s or more, more preferably 1,500 mPa · s or more, more preferably 2,000 mPa · s or more, further Preferably it is 4,000 mPa · s or more, more preferably 6,000 mPa · s or more. Here, the viscosity at 25 ° C. is less than 10,000 mPa · s when measured with a B-type viscometer, for example, at a viscosity of 10,000 mPa · s or more for 30 seconds at rotor No. 4 and 12 rpm. In this case, it refers to the viscosity when measured for 30 seconds at rotor No. 3 and 12 rpm.

〔Production method〕
The oil-in-water emulsion composition of the present invention can be produced by a predetermined procedure depending on the form. For example, the oil-in-water emulsion composition of the present invention can be produced by a method including a step of mixing together components (A) to (E) and, if necessary, optional components.

Further, the oil-in-water emulsion composition of the present invention comprises an aqueous phase containing components (A), (B), (D) and (E), and optionally other water-soluble optional components as component (B Step 1 of mixing and stirring above the temperature at which
Step 2 of heating and stirring the oil phase containing component (C) and optionally other oil-soluble optional components,
Step 3 of mixing and emulsifying the preparation of Step 1 and the preparation of Step 2 under heating
It can also be manufactured by a method including:

  In step 1, the oil-in-water emulsion composition of the present invention is prepared by mixing component (A) with purified water 10 to 30 times as much as component (A) from the viewpoint of improving high temperature stability and low temperature stability. Step 1-1a in which the water-soluble mineral is swollen, and the preparation of Step 1-1a, the component (B), the remainder of the component (D) and the component (E), and other water-soluble optional The aqueous phase containing the component is preferably produced by a method including Step 1-2a in which the aqueous phase containing the component is mixed and stirred at a temperature higher than the temperature at which the component (B) melts.

  In addition, from the viewpoint of improving the smoothness, non-stickiness, and the persistence of the moisturizing feeling, the oil-in-water emulsion composition of the present invention is prepared by adding 10 to 30 masses of the component (A) in advance in the step 1. Mixing with purified water twice, swelling the water-soluble viscous mineral Step 1-1b, the preparation of Step 1-1b and component (B), mixing above the temperature at which component (B) melts Step 1-2b and the preparation of Step 1-2b, the remainder of component (D) and component (E), and, if necessary, an aqueous phase containing other water-soluble optional components are mixed and stirred. It is more preferable to manufacture by the method including process 1-3b.

[Use, dosage form]
As an application of the oil-in-water emulsion composition of the present invention, it can be used for cosmetics, quasi-drugs, pharmaceuticals, etc. without particular limitation, but it has good skin fit, moisturizing feeling, and excellent smoothness of the back skin. Therefore, it can be suitably used as a skin cosmetic, and can be used preferably by applying it to any skin except the scalp, more preferably to the face, body, limbs, or the like. Specifically, it is suitable for use as skin cosmetics such as shampoos, rinses, conditioners, and other hair cosmetics, facial cleansers, cleansing cosmetics, lotions, milky lotions, creams, serums, sunscreen cosmetics, packs, massage cosmetics, etc. it can. Among these, it is preferable to apply as skin care cosmetics such as milky lotion, cream, and cosmetic liquid.

Examples 1-6, Comparative Example 1
The oil-in-water emulsion composition shown in Table 1 was prepared by the following production method, and high temperature stability and low temperature stability were evaluated according to the following method and criteria.
(Production method)
1. Component (A) is mixed with 20% by weight of component (D) to swell component (A).
2. Preparation 1 and component (B) are mixed and stirred uniformly with a hand mixer while heating to 80 ° C.
3. Preparation 2, the remainder of component (D), component (E), carboxyvinyl polymer, xanthan gum, phenoxyethanol are mixed and stirred uniformly while heating to 80 ° C.
4). Ingredient (C) is mixed and stirred uniformly while heating to 80 ° C.
5. Preparation 3 and Preparation 4 are mixed and stirred uniformly with a homomixer while being heated to 80 ° C., and emulsified.
6. After cooling to 40 ° C., add potassium hydroxide, stir uniformly, and then cool to room temperature (25 ° C.).

(High temperature stability test)
Each oil-in-water emulsion composition was filled in a transparent glass bottle and stored at 45 ° C. for 6 months. During storage, visual changes in appearance and fluidity were evaluated after 1 month, 3 months, and 6 months.
A: No change in appearance such as separation after storage for 6 months.
○: No change in appearance such as separation after storage for 3 months, and change in appearance such as separation after storage for 6 months.
Δ: No change in appearance such as separation after storage for 1 month, and change in appearance such as separation after storage for 3 months.
X: Appearance changes such as separation are observed after storage for 1 month.

(Low temperature stability test)
Each oil-in-water emulsion composition was filled in a transparent glass bottle and stored at 0 ° C. for 6 months. During storage, visual changes in appearance were evaluated after 3 months and after 6 months.
○: No change in appearance such as precipitation and separation after storage for 6 months.
Δ: No change in appearance such as precipitation and separation after storage for 3 months, and change in appearance such as precipitation and separation after storage for 6 months.
X: Appearance changes such as precipitation and separation are observed after storage for 3 months.

Examples 1, 7-25, Comparative Examples 2-5
The oil-in-water emulsion compositions shown in Tables 2 to 4 were prepared by the above-described production method, and the same high temperature stability and low temperature stability evaluation as in Table 1 were observed, and the feeling of use (smoothness, stickiness) was observed according to the following methods and standards The absence of moisture and the persistence of moisture retention were evaluated. Examples 14 and 15 are reference examples and are not included in the scope of the claims.

(Sensing sensory evaluation)
Five professional cosmetic evaluators actually use each oil-in-water emulsion composition, and perform sensory evaluation according to the following criteria for smoothness, no stickiness, and the persistence of moisturizing feeling. The score was calculated by rounding off.

・ Film feeling 5: Very smooth 4: Smooth 3: Cannot be said 2: Less smooth 1: Not smooth

・ No sticky feeling 5: Very little sticky feeling 4: Little sticky feeling 3: Cannot say either 2: Many sticky feelings 1: Very much sticky feeling

-Persistence of moisturizing sensation 5: Very moisturizing sensation 4: Moisturizing sensation 3: Cannot say either 2: Less moisturizing sensation 1: Very little moisturizing

* 1: Kunipia G4 (Kunimine Industry Co., Ltd.)
* 2: NIKKOL DECAGLYN 3-SV (Nikko Chemicals)
* 3: NIKKOL DECAGLYN 1-SV (Nikko Chemicals)
* 4: Matsunate MI-102 (Matsumoto Fine Chemical Co., Ltd.)
* 5: NIKKOL TETRAGLYN 1-SV (Nikko Chemicals)
* 6: NIKKOL DECAGLYN 1-M (Nikko Chemicals)
* 7: NIKKOL DGMS (Nikko Chemicals)
* 8: Montex A (made by Miyoshi Yushi Co., Ltd.)
* 9: Plandool Mas (Nippon Seika Co., Ltd.)
* 10: NIKKOL Sugar Squalane (Nikko Chemicals)
* 11: PEG # 4000 (manufactured by NOF Corporation, number average molecular weight 3100)
* 12: Shintalen K (manufactured by Wako Pure Chemical Industries, Ltd.)
* 13: YOFCO CLE-NH (Nippon Seika Co., Ltd.)
* 14: PEG # 600 (manufactured by NOF Corporation, number average molecular weight 600)
* 15: PEG # 1000 (manufactured by NOF Corporation, number average molecular weight 1000)
* 16: PEG # 6000 (manufactured by NOF Corporation, number average molecular weight 8800)
* 17: PEG # 20000 (manufactured by NOF Corporation, number average molecular weight 20000)

  Hereinafter, prescription examples of the present invention will be described. Both have the same effects as the embodiment.

Formulation Example 1 (Cosmetic liquid 1)
(Compounding ingredients) Content (mass%)
(1) Decaglyceryl tristearate (* 2) 0.5
(2) Bentonite (* 1) 1.5
(5) Xanthan gum 0.1
(6) Polyethylene glycol 20000 (* 17) 0.5
(7) Polyethylene glycol 1000 (* 15) 0.5
(8) Squalane (* 10) 1.0
(9) Stearic acid 0.1
(12) Vaseline 0.5
(13) Macadamia nut oil fatty acid phytosteryl (* 9) 0.5
(15) 1,3-Butylene glycol 5.0
(16) Glycerin 1.0
(17) Diglycerin 1.0
(18) Dipropylene glycol 5.0
(19) Ethanol 10.0
(20) Edetate disodium 0.05
(21) Phenoxyethanol 0.1
(22) Carboxyvinyl polymer (* 12) 0.05
(23) Acrylic acid / alkyl methacrylate copolymer (* 18) 0.05
(24) Dipotassium glycyrrhizinate (* 19) 0.01
(25) Sodium hyaluronate (* 20) 0.01
(26) Yeast extract (* 21) 0.01
(27) Oat extract (* 22) 0.1
(28) Clove extract (* 23) 0.1
(29) Soymilk fermentation broth (* 24) 0.1
(30) Yuzu extract (* 25) 0.1
(31) Chlorophenesin 0.1
(32) Potassium hydroxide appropriate amount (33) Purified water residue

  Adjusted to pH = 6.5 by component (32)

* 18: PEMULEN TR-1 (Noveon)
* 19: Outer Genki Dipotassium Glycyrrhizinate (Maruzen Pharmaceutical Co., Ltd.)
* 20: Hyaluronic acid FCH-SU (Kikkoman Biochemifa)
* 21: East Liquid ZB (Ichimaru Falcos)
* 22: Awaku extract-J (Maruzen Pharmaceutical Co., Ltd.)
* 23: Clove extract (Maruzen Pharmaceutical Co., Ltd.)
* 24: Fermented soymilk (Sansho Pharmaceutical)
* 25: Yuzu extract (Maruzen Pharmaceutical)

Formulation Example 2 (Cosmetic Liquid 2)
(Compounding ingredients) Content (mass%)
(1) Decaglyceryl monomyristate (* 6) 0.5
(2) Decaglyceryl diisostearate (* 4) 0.5
(3) Decaglyceryl tristearate (* 2) 2.0
(4) Bentonite (* 1) 2.0
(5) Xanthan gum 0.01
(6) Polyethylene glycol 4000 (* 11) 0.5
(7) Polyethylene glycol 6000 (* 16) 0.5
(8) Squalane (* 10) 2.0
(9) Stearic acid 0.1
(10) Cholesterol 0.1
(11) Dipentaerythrityl tripolyhydroxystearate (* 26) 0.5
(12) Long-chain branched fatty acids (12-31) cholesteryl (* 13) 0.5
(13) Macadamia nut oil fatty acid phytosteryl (* 9) 0.5
(14) Methylphenyl polysiloxane (* 27) 0.1
(15) 1,3-Butylene glycol 5.0
(16) Glycerin 1.0
(17) Diglycerin 1.0
(18) Dipropylene glycol 5.0
(19) Ethanol 10.0
(20) Edetate disodium 0.05
(21) Phenoxyethanol 0.1
(22) Carboxyvinyl polymer (* 12) 0.05
(23) Acrylic acid / alkyl methacrylate copolymer (* 18) 0.05
(24) Dipotassium glycyrrhizinate (* 19) 0.01
(25) Sodium hyaluronate (* 28) 0.01
(26) Yeast extract (* 21) 0.01
(27) Hypericum extract (* 29) 0.01
(28) White jellyfish polysaccharide (* 30) 0.01
(29) Nicotinamide 0.01
(30) Appropriate amount of potassium hydroxide (31) Purified water remaining

  Adjust to pH = 6.5 by component (30)

* 26: Saracos WO-6 (Nisshin Oillio Group)
* 27: Silicone FZ-209 (Toray Dow Corning)
* 28: Hyaluronic acid FCH (FCH-120) (Kikkoman Biochemifa)
* 29: Falco Rex Hypericum B (made by Ichimaru Falcos)
* 30: Tremoist-TP (Nippon Seika Co., Ltd.)

Formulation Example 3 (Emulsion)
(Compounding ingredients) Content (mass%)
(1) Decaglyceryl monomyristate (* 6) 0.1
(2) Decaglyceryl diisostearate (* 4) 0.1
(3) Decaglyceryl tristearate (* 2) 1.5
(4) Bentonite (* 1) 1.7
(5) Xanthan gum 0.35
(6) Polyethylene glycol 4000 (* 11) 5.5
(7) Polyethylene glycol 1000 (* 15) 0.5
(8) Squalane (* 10) 4.0
(9) Vaseline 2.0
(10) Stearic acid 0.1
(11) Cholesterol 0.1
(12) Dipentaerythrityl tripolyhydroxystearate (* 26) 0.1
(13) Long-chain branched fatty acids (12-31) cholesteryl (* 13) 0.1
(14) Macadamia nut oil fatty acid phytosteryl (* 9) 0.1
(15) Methylphenyl polysiloxane (* 27) 0.1
(16) Behenyl alcohol 0.1
(17) 1,3-Butylene glycol 10.0
(18) Glycerin 4.0
(19) Dipropylene glycol 1.0
(20) Edetate disodium 0.01
(21) Phenoxyethanol 0.5
(22) Citric acid appropriate amount (23) Sodium citrate appropriate amount (24) Dipotassium glycyrrhizinate (* 19) 0.01
(25) Sodium hyaluronate (* 20) 0.01
(26) Yeast extract (* 21) 0.1
(27) Hypericum extract (* 29) 0.1
(28) Dutch mustard extract (* 31) 0.1
(29) Ethyl glucoside (* 32) 0.1
(30) Loquat leaf extract (* 33) 0.1
(31) Purified water residue

  Adjusted to pH = 6.5 by components (22) and (23)

* 31: Watercress KB (Silab)
* 32: Alpha-aquaglucoside (manufactured by Hasegawa Inc.)
* 33: Loquat extract BG5 (Maruzen Pharmaceutical Co., Ltd.)

(Formulation Example 4: Emulsion 2)
(Compounding ingredients) Content (mass%)
(1) Decaglyceryl tristearate (* 2) 1.5
(2) Bentonite (* 1) 0.5
(3) Xanthan gum 0.01
(4) Polyethylene glycol 20000 (* 17) 3.0
(5) Squalane (* 10) 5.0
(6) Stearic acid 1.5
(7) Dipentaerythrityl tripolyhydroxystearate (* 26) 5.0
(8) Long-chain branched fatty acid (12-31) cholesteryl (* 13) 0.1
(9) Macadamia nut oil fatty acid phytosteryl (* 9) 5.0
(10) Cholesterol 0.1
(11) Methylphenylpolysiloxane (* 27) 3.0
(12) Methyl polysiloxane (* 34) 0.3
(13) 1,3-Butylene glycol 10.0
(14) Sorbitol 5.0
(15) Dipropylene glycol 5.0
(16) Edetate disodium 0.01
(17) Phenoxyethanol 0.5
(18) Dipotassium glycyrrhizinate (* 19) 0.01
(19) Sodium hyaluronate (* 20) 0.01
(20) Yeast extract (* 21) 0.1
(21) Oat extract (* 22) 0.1
(22) Clove extract (* 23) 0.1
(23) Fermented soymilk (* 24) 0.1
(24) Yuzu extract (* 25) 0.1
(25) Chlorophenesin 0.1
(26) Fragrance 0.1
(27) Carboxyvinyl polymer (* 12) 0.01
(28) Appropriate amount of potassium hydroxide (29) Purified water residue

  Adjusted to pH = 6.5 by component (28)

* 34: KF-96A-6cs (Shin-Etsu Chemical Co., Ltd.)

  In addition, the fragrance | flavor used in the said prescription example 4 is the following floral system compounding fragrance | flavor prescriptions. In addition, 1% DPG, 5% DPG, and 10% DPG described in the component name means that the active ingredient content of the fragrance is 1% by mass, 5% by mass, and 10% by mass, respectively. Show.

Floral-based blended fragrance formulation (component) Content (mass%)
Bergamot oil (natural fragrance) 2.0
Linarel acetate 1.5
Methyl anthranilate 0.2
Pettigrain oil (natural flavor) 0.5
Auranthiol 10% DPG (Schiff base of hydroxycitronellal and methylanthranilate) 1.0
Amyl allyl glycolate 1% DPG 0.5
Galvanum oil 1% DPG (natural fragrance) 0.1
Blackcurrant Buzz Absolute 10% DPG (natural fragrance) 1.5
Tadget oil 10% DPG (natural fragrance) 0.8
Ylang Ylang Oil Extra (natural fragrance) 2.0
Benzyl acetate 5.0
Methyl dihydrojasmonate 13.0
Sis Jasmon 10% DPG 1.0
Jasmine absolute (natural fragrance) 0.5
Indole 5% DPG 0.5
Alphahexyl cinnamic aldehyde 1.5
L-citronellol 0.5
Rose oil (natural fragrance) 0.5
Rose Absolute (natural fragrance) 0.5
Damasenone 1% DPG 0.5
L-Rose oxide 1% DPG 0.5
Dimethylbenzyl carbonyl acetate 1.0
Hydroxycitronellal 3.0
Liral (compound name: 4- (4-hydroxy-4-methylpentyl) -3-cyclohexene-1-carboxaldehyde) 3.5
Cyclamenaldehyde (Compound name: 2-Methyl-3- (4-isopropylphenyl) -propanol) 0.5
Alpha isomethyl ionone (compound name: 5- (2,2,6-trimethyl-2-cyclohexenyl) -3-methyl-3-buten-2-one) 4.0
Oris Concrete 10% DPG (natural fragrance) 0.8
Methyl eugenol 0.5
Iso-E Super (Compound name: 7-acetyl-1,2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethylnaphthalene) 2.5
Belt Fix Cool (compound name: 4-acetyl-trimethyl-6,8α-ethano-1,2,3,5,6,7,8,8α-octahydronaphthalenone) 4.0
Vetiver acetate 2.0
Sandalwood oil (natural fragrance) 1.5
Bagdanol 10% DPG (Compound name: 2-ethyl-4- (2,2,3-trimethyl-3-cyclopenten-1-yl) -2-buten-1-ol) 1.0
Patchouli oil 10% DPG (natural fragrance) 0.2
Evernil 10% DPG (Compound name: Methyl-2,4-dihydroxy-3,6-dimethylbenzoate) 1.5
Galac Solid 50% Benzyl Benzoate (Compound name: 4,6,6,7,8,8-Hexamethyl-1,3,4,6,7,8-Hexahydrocyclopentabenzopyran) 10.0
Cyclopentadecanolide 4.0
Heliotropin 0.5
Coumarin 0.5
Vanillin 10% DPG 0.5
Ethyl vanillin 10% DPG 2.5
Raspberry ketone 10% DPG (compound name: 4- (4-hydrophenyl) -2-butanone) 0.5
Gamma undecalactone 10% DPG 1.5
Gamma decalactone 10% DPG 1.5
Love Danum Absolute 10% DPG (natural fragrance) 0.5
Dipropylene glycol

Claims (6)

An oil-in-water emulsion composition containing the following components (A) to (E).
(A) Water-swellable clay mineral
(B) Polyglycerin fatty acid ester with HLB of 4.5 or more
(C) An oil containing a melting point of 30 ° C. or higher and 65 ° C. or lower in a proportion of 10% by weight to 90% by weight
(D) Water
(E) Highly polymerized polyalkylene glycol having a number average molecular weight of 950 or more   The oil-in-water emulsion composition according to claim 1, wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 0.1 or more and 10.0 or less.   The oil-in-water emulsion composition according to claim 1 or 2, wherein the component (B) is a polyglycerin fatty acid ester having an HLB of 5.0 to 16.0.   The oil-in-water emulsion composition according to any one of claims 1 to 3, wherein the component (B) is decaglycerin fatty acid ester. The oil-in-water emulsion composition according to any one of claims 1 to 4 , wherein the content of the component (E) is 0.1% by mass or more and 12.0% by mass or less. The oil-in-water emulsion composition according to any one of claims 1 to 5 , wherein the viscosity is 30,000 mPa · s or less.