JPH115712A - Water-in-oil type emulsion composition, and emulsion cosmetic by using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition which is reading spreading, capable of providing a fresh clean and cool feeling, and extremely stabile by including a lower alcohol, an oil containing a volatile silicone, an organically modified clay mineral, a specific emulsion, a refreshment and water. SOLUTION: This water-in-oil type emulsion composition comprises (A) 0.5-10.0 wt.% lower alcohol, (B) an oil (e.g. an avocado oil) containing a volatile silicone oil (e.g. decamethylpolysiloxane), (C) 0.1-5.0 wt.% organically modified clay mineral (e.g. dimethylalkylammonium hectorite), (D) an emulsifier having <=7 HLB e.g. a polyether-modified silicone surfactant of the formula [R is H, a 1-5C alkyl, etc.; (m) is 1-150 in average; (n) is 1-50 in average; (a) and (b) are each 0-35 in average]}, (E) a refreshment (e.g. L-menthol) and (F) water. The contents of component B and D are 20-60 wt.% and 0.1-5 wt.% respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a water-in-oil emulsion composition and an emulsion cosmetic. More specifically, it is a water-in-oil type that exhibits a good emulsified state, does not change with temperature or aging, has excellent stability, has good spreadability, has a fresh and refreshing feeling, and has a refreshing feeling. The present invention relates to an emulsified composition and an emulsified cosmetic using the same.

[0002]

2. Description of the Related Art Conventionally, a water-in-oil type emulsion composition used for emulsified cosmetics has high stability by increasing the viscosity of an oil phase as an external phase and blending a solid / semi-solid type oil component. Since the product was obtained, it became oily and sticky in use, and its evaluation as an emulsified cosmetic was low.

On the other hand, a water-in-oil type emulsified composition using an organically modified clay mineral as an emulsifier has been developed as an emulsification method having good stability even when the solid / semi-solid type oil content in the oil phase is significantly reduced. However, the emulsified cosmetic containing the water-in-oil type emulsified composition has poor elongation at the time of application to the skin, and lacks freshness and freshness. There was a problem in.
On the other hand, it has been attempted to add ethanol to give a refreshing feeling to the water-in-oil emulsion composition (Japanese Patent Application Laid-Open No.
No. 250311), the emulsion stability was not always satisfactory.

[0004]

For this reason, development of a water-in-oil type emulsion composition and an emulsion cosmetic having good stability, good elongation, freshness, a refreshing feeling of use and a refreshing feeling are desired. I was

The inventors of the present invention have conducted intensive studies in view of the above problems, and as a result, have found that a lower alcohol, an oil containing volatile silicone, an organically modified clay mineral, an emulsifier having an HLB of 7 or less, a cooling agent, By emulsifying with water, it was found that a water-in-oil emulsified composition having good elongation, being fresh, having a refreshing feeling of use and a refreshing feeling, and having extremely good stability was obtained. It was completed.

[0006]

That is, according to the present invention, there is provided an organic modified clay mineral having a content of 0.5 to 10.0% by weight of a lower alcohol, an oil containing a volatile silicone oil, and an organic modified clay mineral of 0.1 to 5.0.
It is intended to provide a water-in-oil type emulsified composition characterized by comprising an emulsifier having an HLB of 7 or less, a cooling agent, and water.

The present invention also relates to the above-mentioned water-in-oil type emulsifier, wherein the emulsifier having an HLB of 7 or less is a polyether-modified silicone surfactant represented by the following chemical formula (2). It provides a composition.

Embedded image (Wherein, R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, m is an average of 1 to 150, n is an average of 1 to 50,
a and b show the number of 0-35 on average. )

Further, the present invention is characterized in that the volatile silicone oil is one or more selected from the group consisting of decamethylpolysiloxane, octamethylcyclotetrasiloxane and dodecamethylcyclohexasiloxane. It is intended to provide a water-in-oil type emulsion composition as described above.

The present invention also provides a water-in-oil emulsion composition as described above, wherein the volatile silicone oil in the oil is contained in an amount of 30% by weight or more based on the total amount of the oil. is there.

Further, the present invention provides an emulsified cosmetic comprising the above-mentioned water-in-oil emulsion composition.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail.

The lower alcohol used in the present invention refers to an alcohol which is liquid at room temperature, and includes, for example, methanol, ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like.
Ethanol is preferably used.

These lower alcohols are used in an amount of 0.5 to 10.0 based on the total amount of the water-in-oil emulsion composition or emulsified cosmetic.
% By weight. When the amount is less than 0.5% by weight, freshness and refreshing feeling cannot be obtained in use feeling, and when the amount is more than 10.0%, the stability decreases. It is preferable to mix 1.0 to 5.0% by weight.

The oil used in the present invention is not particularly limited as long as it can form an oil phase of the water-in-oil emulsion composition, but it is essential that the oil contains a volatile silicone oil. As the volatile silicone oil, decamethylpolysiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane and the like are preferably used. These volatile silicone oils are preferably blended in an amount of 30% by weight or more based on the total oil content of the water-in-oil emulsion composition or emulsified cosmetic. If the amount is less than 30% by weight, a fresh and refreshing feeling in use may not be obtained. The blending amount of the oil component is usually 20 to 60% by weight, preferably 30 to 50% by weight, based on the total amount of the water-in-oil emulsion composition or emulsified cosmetic.

[0015] The oil component capable of forming the oil phase of the water-in-oil emulsion composition includes, for example, avocado oil, shibaki oil, macadamia nut oil, corn oil, evening primrose oil, avocado oil, mink oil, jojoba oil, rapeseed oil as animal and vegetable oils. Oil, castor oil, sunflower oil, cacao oil, coconut oil, rice bran oil, olive oil, lanolin, natural animal and vegetable oils such as squalene, liquid paraffin, squalane, isopropyl myristate, isopropyl palmitate, isopropyl stearate, 2-ethylhexanoic acid Glycerol, tri-2-
Fatty acid esters such as glyceryl ethylhexanoate, pentaslit tetra-2-ethylhexanoate, diethylene glycol monopropyl ether, polyoxyethylene polyoxypropylene pentaerythritol ether,
Polar oils such as polyoxypropylene butyl ether and ethyl linoleate; silicone oils include methylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, decamethylpolysiloxane, methylpolysiloxane, octamethylcyclotetrasiloxane, dodecamethyl Examples thereof include cyclohexasiloxane and highly polymerized methylpolysiloxane.

The organically modified clay mineral used in the present invention is a kind of colloidal hydrous aluminum silicate having a three-layer structure, and is generally represented by the following general formula (3).

(X, Y) _2-3 (Si, Al) ₄ O ₁₀ (OH) ₂ Z _1/3 · nH ₂ O, where X = Al, Fe (III), Mn (III), Cr ( III) Y = Mg, Fe (II), Ni, Zn, Li It is obtained by treating a clay mineral represented by Z = K, Na, Ca with a quaternary ammonium salt type cationic surfactant.

Specifically, for example, montmorillonite,
A montmorillonite group (naturally occurring or synthetic (in this case, the (OH) group in the formula is replaced with fluorine)) such as saponite and hectorite (commercially available products include veegum, kunipia, laponite, etc.) and sodium silicic mica And clay minerals such as synthetic mica known as sodium or lithium teniolite (commercially available products include dimonite: Topy Industries, Ltd.) and the like, and are obtained by treating with a quaternary ammonium salt type cationic surfactant.

The quaternary ammonium salt type cationic surfactant used for organically modifying a clay mineral is represented by the following general formula (Formula 4).

[0019]

Embedded image (Wherein, R ₁ is an alkyl group or benzyl group having 10 to 22 carbon atoms, R ₂ is a methyl group or an alkyl group having 10 to 22 carbon atoms, R ₃ and R ₄ are an alkyl group or hydroxy group having 1 to 3 carbon atoms) An alkyl group, X represents a halogen atom or a methyl sulfate residue.)

For example, dodecyltrimethylammonium chloride, myristyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, aralkyltrimethylammonium chloride, behenyltrimethylammonium chloride, myristyltrimethylammonium chloride, cetyldimethylammonium chloride, stearyldimethylammonium chloride Aralkyl dimethyl ammonium chloride, behenyl dimethyl ammonium chloride, cetyl diethyl ammonium chloride, stearyl diethyl ammonium chloride, stearyl diethyl ammonium chloride, aralkyl diethyl ammonium chloride, behenyl diethyl ammonium chloride,
Benzyl dimethyl myristyl ammonium chloride, benzyl dimethyl cetyl ammonium chloride, benzyl dimethyl stearyl ammonium chloride, benzyl dimethyl behenyl ammonium chloride, benzyl dimethyl ethyl cetyl ammonium chloride, benzyl dimethyl ethyl stearyl ammonium chloride, distearyl dimethyl ammonium chloride, dibehenyl dihydroxy Ethyl ammonium chloride, the corresponding bromide, and the like, and dipalmityl uropyr ethyl ammonium methyl sulfate, and the like, and one or more of these are arbitrarily selected and treated.

When the clay mineral is treated with the above-mentioned quaternary ammonium salt type cationic surfactant, it is possible to use a nonionic surfactant in combination. For example, addition of 2 to 30 mol of polyoxyethylene (hereinafter POE)
(2-30). ｝ Oleyl ether, POE (2
To 35) stearyl ether, POE (2 to 20) lauryl ether, POE (1 to 20) alkyl phenyl ether, POE (6 to 18) behenyl ether, POE
(5-25) 2-decylpentadecyl ether, POE
(3-30) 2-decyltetradecyl ether, POE
(8-16) ether-type activators such as 2-octyldecyl ether, and POE (4-60) hydrogenated castor oil;
POE (3 to 14) fatty acid monoester, POE (6 to
30) ester-type activators such as fatty acid diesters and POE (5-20) sorbitan fatty acid esters;
(2-30) glyceryl monoisostearate, POE
(10-60) glyceryl triisostearate, PO
E (7-50) hydrogenated castor oil monoisostearate, P
OE (12-60) hydrogenated castor oil Ethylene oxide addition type surfactant such as ether ester type surfactant such as triisostearate and decaglyceryl tetraolate;
Polyhydric alcohol fatty acid ester type surfactants such as glycerin fatty acid esters such as hexaglyceryl triisostearate, diglyceryl diisostearate, and glyceryl monooleate are exemplified. Among these, polyglycerin fatty acid esters of diglycerin or more such as decaglyceryl tetraolate, hexaglyceryl triisostearate, diglyceryl diisostearate, POE
(2-12) lauryl ether, POE (6-15) behenyl ether, POE (5-20) 2-decylpentadecyl ether, POE (5-17) 2-decyltetradecyl ether, POE (8-16) 2 A POE addition ether type activator such as octyl decyl ether;
OE (10-20)) hydrogenated castor oil, POE (5-1)
4) POE addition ester type activators such as oleic acid monoester, POE (6-20) oleic acid diester, POE (5-10) sorbitan oleic ester, POE
(3-15) glyceryl monoisostearate, POE
(10-40) P such as glyceryl triisostearate
It is preferable to use one or more of ethylene oxide addition type nonionic surfactants such as OE addition ether ester surfactants.

The organically modified clay mineral used in the present invention is:
For example, the clay mineral and the quaternary ammonium salt-type cationic surfactant are dispersed and stirred in a low boiling solvent such as water, acetone or lower alcohol to remove the low boiling solvent.

The content of the quaternary ammonium salt type cationic surfactant in the organically modified clay mineral used in the present invention is 60 to 140 milliequivalents (hereinafter meq) per 100 g of the clay mineral.
Abbreviated. ) Is preferable.

Representative examples of the organically modified clay mineral preferably used in the present invention include dimethylalkylammonium hectorite, benzyldimethylstearylammonium hectorite, and aluminum magnesium silicate treated with distearyldimethylammonium chloride. Examples of commercially available products include Benton 38 (montmorillonite treated with distearyl dimethyl ammonium chloride: National Red).

The organically modified clay mineral is incorporated in an amount of 0.1 to 5.0% by weight based on the total amount of the water-in-oil emulsion composition or the emulsified cosmetic. Preferably, 0.5 to 3.0% by weight is blended.
If the amount is less than 0.1% by weight, it is difficult to obtain sufficient stability.
If the content is more than the weight%, it is not preferable in terms of usability such as poor removal to the finger and heavy elongation on the skin.

The emulsifier having an HLB of 7 or less used in the present invention includes, for example, sorbitan monolaurate as a surfactant,
Sorbitan fatty acid esters such as sorbitan monooleate, sorbitan monoisostearate and sorbitan tristearate; glycerin fatty acid esters such as glycerol monostearate and glycerol monooleate; POE (5), POE (7.5), POE ( 10)
Polyoxyethylene hydrogenated castor oil such as hydrogenated castor oil,
A polyether-based silicon surfactant is exemplified. In particular, a polyether-based silicon surfactant is preferable, and specifically, has a structure represented by the following chemical formula “Chemical Formula 5”.

Embedded image (Wherein, R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, m is an average of 1 to 150, n is an average of 1 to 50,
a and b show the number of 0-35 on average. )

The emulsifier having an HLB of 7 or less is preferably 0.1 to 5 parts by weight based on the total amount of the water-in-oil emulsion composition or emulsified cosmetic.
% By weight. The emulsifier having an HLB of 7 or less contained in the water-in-oil emulsified composition or the emulsified cosmetic is within the scope of the present invention even if it is contained in a state of being adsorbed on the organically modified clay mineral of the essential component. That is, in the present invention, usually, when producing a water-in-oil type emulsified composition or emulsified cosmetic, an organically modified clay mineral and an emulsifier having an HLB of 7 or less are separately added. The resulting emulsifier having an HLB of 7 or less may be treated with a surfactant having an HLB of 7 or less to be blended with the emulsifier adsorbed on the organically modified clay mineral.

The cooling agent used in the present invention is not particularly limited as long as it can be blended with a cosmetic as a cooling agent.
Examples include menthol, camphor, mint, eucalyptus oil and derivatives thereof. Preferred are menthol and menthol derivatives, examples of menthol derivatives include menthyl lactate, menthoxypropanediol, menthyl hydroxybutyrate,
Menthoxyfuran, menthyl glucoside and the like can be mentioned. More preferably, L-menthol and menthyl lactate are used. Most preferred cooling agents are L-menthol and menthyl lactate. In the present invention, one or more of these cooling agents can be blended, and the blending amount is not particularly limited.
01 to 10.0% by weight, more preferably 0.01 to
5.0% by weight.

The water used in the present invention is preferably blended in an amount of 10 to 90% by weight based on the total amount of the water-in-oil emulsion composition or emulsified cosmetic, and forms an aqueous phase together with the lower alcohol and other water-soluble components. .

The water-in-oil emulsified composition and emulsified cosmetic composition of the present invention include, in addition to the above essential components, for example, paraaminobenzoic acid, homomethyl-7N-acetylalanantilanilate, butylmethoxybenzoylmethane, Glyceryl paramethoxycinnamate-mono-2-ethylhexanoate,
Amyl salicylate, octyl cinnamate, 2, 4-
UV absorbers such as dihydroxybenzophenone; humectants such as glycerin, 1,3-butylene glycol, polyethylene glycol, sorbitol, xylitol, and maltitol; thickeners such as methylcellulose, gum arabic, polyvinyl alcohol, montmorillonite, and laponite; Antioxidants such as toluene, tocopherol, phytic acid, etc., antibacterial preservatives such as benzoic acid, salicylic acid, sorbic acid, alkyl esters of parahydroxybenzoic acid (ethylparaben, butylparaben, etc.), hexachlorophene, and acylsarcosine acid such as sodium lauroylcosin) , Glutathione, citric acid, malic acid,
Organic acids such as tartaric acid and lactic acid, vitamin A and its derivatives, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ and its derivatives, vitamin B ₁₂ , vitamin B ₁₅ and its derivatives, etc. Vitamin C such as vitamin B, ascorbic acid, ascorbic acid sulfate (salt), ascorbic acid phosphate (salt), ascorbic acid dipalmitate
, Α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E-acetate, vitamin E-
Vitamin E such as nicotinate, vitamin D, vitamin H, pantothenic acid, vitamins such as pantothetin, nicotinamide, benzyl nicotinate, γ-oryzanol, allantoin, glycyrrhizic acid (salt), glycyrrhetinic acid and derivatives thereof, hinokitiol , Mucidin, bisabolol, eucalyptol, thymol inositol, pantoterethyl ether, ethinyl estradiol, cephalandin, placenta extract, and various other drugs, cedar, Clara, kuhon, orange, sage, saw, grass mallow, senkyu, senkyu, assembly,
Natural extracted with organic solvents, alcohols, polyhydric alcohols, water, aqueous alcohol, etc., such as thyme, spruce, spruce, birch, horsetail, loofah, marronnier, yukinoshita, arnica, lily, mugwort, peony, aloe, gardenia, sawara etc. Any one or more selected from extracts, dyes, and the like can be blended within a range that does not impair the effects of the present invention, and can be produced by a conventional method.

The water-in-oil emulsion composition of the present invention is, for example,
In the cosmetics, quasi-drugs, and pharmaceutical fields, it is used as a skin cosmetic, a hair cosmetic, a skin external preparation, and the like. It is preferably used as an emulsified cosmetic because it has an excellent feeling in use.

[0032]

Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. In addition, all% means weight%.

A cream as a water-in-oil emulsified composition was prepared by the conventional method according to the formulations shown in Tables 1 and 2, and the usability and stability of the cream were evaluated. The evaluation results are shown in "Table 3". From Table 3, it can be seen that the water-in-oil emulsion composition of the present invention has good stability and excellent useability and refreshing feeling.

[Evaluation of Usability] Usability was evaluated by 10 female professional panels based on the following evaluation criteria. "Expansion on the skin" ◎ ... 8 or more of 10 respondents answered that growth was good.・ ・ ・: 6 or more of 10 respondents answered that growth was good. Δ: 4 or more of the 10 respondents answered that growth was good. ×: Less than 4 out of 10 respondents answered that growth was good. “Refreshing” ◎ ・ ・ ・ 8 or more of 10 respondents answered that they were refreshing.・ ・ ・: Six or more of the ten responded that they were refreshing. △: 4 or more out of 10 responded that they were refreshing. ×: Less than 4 out of 10 responded that they were refreshing. “Refreshing” ◎ ・ ・ ・ 8 or more of 10 respondents answered that it was fresh.・ ・ ・: Six or more of the ten responded that it was fresh. △: 4 or more out of 10 responded that it was fresh. ×: Less than 4 out of 10 responded that it was fresh. “Refreshing feeling” ◎ ・ ・ ・ 8 or more out of 10 responded that they felt refreshing.・ ・ ・: Six or more of the ten responded that they felt refreshed. Δ: 4 or more out of 10 responded that they felt refreshed. ×: Less than 4 out of 10 respondents felt refreshed.

[Evaluation of stability] 50 ° C., 37 ° C., room temperature,
The following evaluation was performed after leaving the apparatus at 0 ° C. for one month. “Appearance change” ◎ ・ ・ ・ ・ ・ ・ No abnormality ○ ・ ・ ・ ・ ・ ・ ・ Slightly oily △ ・ ・ ・ ・ ・ ・ ・ Oil ×× ・ ・ Separation

[0036]

[Table 1] ---------------------------------------------- -------------------------- Ingredients Example: 1 2 3 4 5 6 7 ------------- -------------------------------------------------- --------- Squalane 5.0% 5.0% 5.0% 1.0% 5.0% 1.0% 1.0% Isopropyl myristate 5.0 5.0 5.0 2.0 5.0 1.0 1.0 Cetyl 2-ethylhexanoate 5.0 5.0 5.0 3.0 5.0 1.0 1.0 Tecamethyl Cyclopentasiloxane 10.0 10.0 10.0 20.0 30.0 40.0 41.0 Methylpolysiloxane 5.0 5.0 5.0 5.0 5.0 2.0 2.0 Polyether Modified silicone (* 1) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Organic modified clay mineral (* 2) 1.0 1.0 1.0 0.1 2.0 5.0 5.0 Purified water Remaining Remaining Remaining Remaining Remaining Remaining Remaining Remaining Remaining Ethyl Alcohol 1.0 5.0 10.0 5.0 10.0 5.0 5.0 Schiffolene Polypropylene 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Menthol 0.001 0.1 0.1 0.1 0.1 0.1 0.001 -------------- -------------------------------------------------- -------- * 1: Shin-Etsu Chemical Co., Ltd. Silicone SC9450 (trade name) * 2: Benton 38 (trade name) manufactured by National Red

[0037]

[Table 2] ---------------------------------------------- ---------- Ingredient Comparative Example: 1 2 3 4 -------------------------------- ------------------------ Squalane 5.0% 5.0% 5.0% 5.0% Isopropyl myristate 5.0 5.0 5.0 2.0 Cetyl 2-ethylhexanoate 5.0 1.0 5.0 8.0 tecamethylcyclopentasiloxane-20.0 10.0 10.0 methylpolysiloxane 5.0 5.0 5.0 5.0 polyether modified silicone (* 1) 3.0 3.0 3.0 3.0 organic modified clay mineral (* 2) 1.0 1.0 3.0 0.01 menthol 0.1 0.1-0.1 ethyl alcohol 0.5 0.1 15.0 10.0 Purified water Remaining Remaining Remaining Remaining perfluorocarbon recall 5.0 5.0 5.0 5.0 ----------------------------------- ---------------------- * 1: Silicone SC9450 (trade name) manufactured by Shin-Etsu Chemical Co., Ltd. * 2: Benton 38 (trade name) manufactured by National Red Co., Ltd.

[0038]

[Table 3]

"Example 8: Moisturizing cream" 1 Purified water balance 2 Salt 1.0% by weight 3 Ethyl alcohol 5.0 4 Camphor 0.15 1,3-butylene glycol 5.0 6 Liquid paraffin 5.0 7 Cetyl-2-ethylhexanoate 5.0 8 Pentaerythritol tetra-2-ethylhexanoate 3.0 9 Methylphenylpolysiloxane 3.0 10 Decamethylcyclopentasiloxane 10.0 11 Polyether-modified silicone (* 1) 2.0 12 Organically modified clay mineral (* 2) 3.0 13 Vitamin E-acetate 3.0 14 Methyl paraben Suitable amount 15 Fragrance Suitable amount * 1: Silicone SC9450 (trade name) manufactured by Shin-Etsu Chemical Co., Ltd. * 2: Benton 27 (trade name) manufactured by National Red Co., Ltd. [Production method] Components 6, 7, 8, 9, 10, 13, and 15 were mixed at room temperature. Phase was mixed with the active agent 11, further 1
2 is added while gradually adding, and the mixture is uniformly dispersed. Thereafter, 5 was added to 1, and the aqueous phase obtained by further dissolving 4 and 13 in 3 was gradually added to the oil phase, and after uniform dispersion with a homomixer, emulsified particles were prepared. Was prepared. The obtained moisturizing cream had good stability and excellent usability and refreshing feeling.

“Example 9: Emulsion” 1 Purified water balance 2 Isopropyl alcohol 3.0% by weight 3 Na L-glutamate 2.0 4 Propylene glycol 8.05 Squalene 5.0 6 Pentaerythritol tetra-2-ethyl Hexanoate 5.0 7 Methylphenyl polysiloxane 5.0 8 Octamethylcyclotetrasiloxane 20.09 Polyether-modified silicone (* 1) 3.0 10 Organic-modified clay mineral (* 2) 1.0 11 Hamamelis extraction Liquid proper amount 12 Methyl paraben proper amount 13 Fragrance proper amount 14 Menthol 0.1 * 1: Silicone SC9450 (trade name) manufactured by Shin-Etsu Chemical Co., Ltd. * 2: Benton 38 (trade name) manufactured by National Red Co., Ltd. [Production method] Components 5, 6 , 7, 8, 13, and 14 were mixed at room temperature with 9 activators, and 10 was added uniformly while gradually adding Distributed perform. Then, after dissolving 3 in 1, the aqueous phase obtained by adding 12 in 2 was gradually added to the oil phase, and after uniform dispersion with a homomixer, emulsified particles were prepared. An emulsion was produced. The obtained emulsion had good stability and excellent usability and cool feeling.

Example 10: Sunscreen Prevention Emulsion 1 Purified Water Remaining 2 Salt 1.03 Na Glutamate 1.04 Propylene Glycol 8.0 5 Pentaerythritol Tetra-2-ethylhexanoate 1.06 Cetyl-2-ethylhexanoate 1.0 7 Methylphenylpolysiloxane 5.0 8 Decamethylcyclopentasiloxane 15.0 9 Dimethylsilylated silicic anhydride (* 1) 1.0 10 Polyether-modified silicone (* 2 ) 1.011 Diglyceroldiolate 1.012 Organically modified clay mineral (* 3) 0.113 Octylmethoxycinnamate 10.0 14 2,4-Dihydroxybenzophenone 3.0 15 Methylparaben Suitable amount 16 Perfume Suitable amount 17 Mentyl lactate 1.0 * 1: Aerosil R972 (trade name) manufactured by Nippon Aerosil Co., Ltd. * 2: Shin * 3: Benton 27 (trade name) manufactured by National Red Co., Ltd. [Production method] Components 5, 6, 7, 8, 10, 11, 12, 1
The powder of No. 9 is dispersed uniformly while gradually adding the powder of No. 9 to an oil phase in which 3, 14, 16, and 17 are mixed at room temperature. Then, one for two,
An aqueous phase obtained by adding 15 to 4 in which 3 was dissolved was gradually added to the oil phase, and after uniform dispersion with a homomixer, emulsified particles were prepared and used for preventing sunburn, which is a water-in-oil type emulsified cosmetic. An emulsion was produced. The obtained emulsion for preventing sunburn had good stability and excellent usability and cool feeling.

[0042]

According to the present invention, it is possible to provide a water-in-oil type emulsified composition and an emulsified cosmetic having good stability, good elongation, freshness, and a refreshing feeling of use and refreshing feeling.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI A61K 7/48 A61K 7/48

Claims (5)

[Claims] 1. 0.5 to 10.0% by weight of lower alcohol
Water containing oil containing volatile silicone oil, 0.1 to 5.0% by weight of an organically modified clay mineral, an emulsifier having an HLB of 7 or less, a cooling agent, and water. -Type emulsion composition. 2. The water-in-oil emulsion composition according to claim 1, wherein the emulsifier having an HLB of 7 or less is a polyether-modified silicone surfactant represented by the following chemical formula (1). . Embedded image (Wherein, R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, m is an average of 1 to 150, n is an average of 1 to 50,
a and b show the number of 0-35 on average. ) 3. The volatile silicone oil is decamethylpolysiloxane, octamethylcyclotetrasiloxane,
The water-in-oil emulsion composition according to claim 1 or 2, wherein the composition is one or more selected from the group consisting of dodecamethylcyclohexasiloxane. 4. The water-in-oil emulsion composition according to claim 1, wherein the volatile silicone oil is contained in an amount of 30% by weight or more based on the total amount of the oil component. 5. An emulsified cosmetic comprising the water-in-oil emulsion composition according to claim 1, 2, 3, or 4.