JP2003063929A - Water-in-oil type emulsion composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin care preparation of water-in-oil (W/O) type emulsion composition that provides pleasant feelings such as smoothness of the skin when applied, and having excellent durability of the effect. SOLUTION: This W/O type emulsion composition comprises a volatile component and a nonvolatile component containing a nonvolatile liquid oil, water, lipophilic powder and surfactant. The content of the lipophilic powder in the nonvolatile component is 50 to 80 wt.% of the total.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a W / O type emulsion composition. More specifically, the present invention relates to a W / O type emulsion composition such as a skin external preparation, a cosmetic, etc., which has an excellent feeling of use such as further smoothing the skin, and has an excellent sustainability of the effect.

[0002]

2. Description of the Related Art The pores of the skin become clogged with sebum and the skin becomes sticky and uncomfortable. Conventionally, studies have been conducted from the viewpoint of application of skin external preparations in order to improve this, and various skin external preparations have been developed and used by consumers.

However, the powder type external preparation for skin has a drawback that it is powdery and the skin is dried. In addition, the oil-based external preparation for skin has no refreshing feeling and does not improve stickiness. Further, the water-based external preparation for skin is too refreshing and does not give a moisturizing feeling, and if polyhydric alcohol is added to improve it, it becomes sticky. As described above, each of the external preparations for skin has a problem. These problems, powder,
In particular, we are trying to solve the problem by blending lipophilic powder into a W / O type emulsion composition, but it is still not enough, and development of a skin external preparation for removing discomfort and making skin smooth is desired. It was rare.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is an external preparation for skin which has an excellent feeling of use such as further smoothing the skin and has a long-lasting effect. To provide.

[0005]

Means for Solving the Problems As a result of intensive studies for solving the above problems, the present inventors have found that when preparing a W / O type emulsion composition containing a lipophilic powder, a lipophilic powder The inventors have found that the above-mentioned problems can be solved by setting the blending balance in the non-volatile components within a specific range, and have completed the present invention.

That is, the present invention is a non-volatile liquid oil,
A W / O type emulsion composition comprising a non-volatile component and a volatile component, which contains water, a lipophilic powder and a surfactant,
The content of the lipophilic powder is 50 to 8 in the total amount of nonvolatile components.
The W / O type emulsion composition is 0% by mass.

The W / O type emulsion composition of the present invention further comprises
It may contain volatile oils. Usability is stabilized by the inclusion of volatile oil.

The content of volatile oil in the present invention is W /
It is preferably 1 to 20% by mass in the total amount of the O-type emulsion composition.

In the present invention, spherical polymer powder can be included as the lipophilic powder, and the content of the lipophilic powder is W.
It is preferably 20 to 50 mass% in the total amount of the / O-type emulsion composition.

The W / O type emulsion composition of the present invention is preferably applied to, for example, external preparations for skin and cosmetics.

In the present invention, terms such as liquid and solid are as follows:
It refers to the state at room temperature. Further, terms such as non-volatile and volatile refer to a state under normal pressure.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below.

The W / O type emulsion composition of the present invention contains a non-volatile liquid oil, water, a lipophilic powder and a surfactant as essential components.

The non-volatile liquid oil component used in the present invention is not particularly limited as long as it is a non-volatile liquid oil component which can be blended in an emulsion composition such as a skin external preparation and a cosmetic.
Examples of non-volatile liquid oil include, for example, macadamia nut oil, avocado oil, corn oil, olive oil,
Rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil,
Jojoba oil, coconut oil, palm oil, liquid lanolin, camellia oil, evening primrose oil, egg yolk oil, soybean oil, tea seed oil, rice bran oil,
Oils and fats such as germ oil, peanut oil, sunflower oil and almond oil, hydrocarbon oils such as squalane, liquid paraffin, pristane and polybutene,

As the esters, fatty acid monoesters such as isopropyl myristate, isopropyl palmitate, cetyl 2-ethylhexanoate, octyldodecyl myristate, cetyl isooctanoate and hexyldecyl isostearate, diisopropyl adipate, dibasic acid sebacate. Diesters of dibasic acids such as 2-ethylhexyl, oxyesters such as cetyl lactate and diisostearyl malate, glyceryl trioctanoate, glyceryl triisostearate, glyceryl esters such as glyceryl tri-2-ethylhexanoate, diisostearic acid Diglyceryl, polyglycerin esters such as diglyceryl triisostearate, pentaerythritol tetraoctanoate, pentane erythritol tetra-2-ethylhexanoate, etc. Pentaerythritol esters, trioctanoate trimethylolpropane, trimethylolpropane triisostearate, trimethylolpropane esters, such as tri-2-ethylhexanoate trimethylolpropane, ethylene glycol di-2-ethylhexanoate,
Examples thereof include glycol esters such as neocaptyl glycol dicaprate.

Further, fatty acids such as isostearic acid and oleic acid, higher alcohols such as isostearyl alcohol, oleyl alcohol and octyldodecanol,
Examples thereof include amino acid esters such as commercially available Eldue (Eldew CL-202 and the like; manufactured by Ajinomoto Co., Inc.). Further, chain silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane and diphenylpolysiloxane, silicone oils such as amino-modified polysiloxane, alkyl-modified polysiloxane and fluorine-modified polysiloxane, and perfluoropolyether can be used. The non-volatile liquid oil component in the present invention is arbitrarily selected and blended in one kind or two or more kinds.

The content of the non-volatile liquid oil in the present invention is preferably 0.5 to 30 mass% in the total amount of the W / O type emulsion composition. More preferably, it is 5 to 25 mass%. Particularly, 5 to 15 mass% is preferable.

In the present invention, a volatile oil component may be further added. By blending volatile oil,
A stable W / O type emulsion composition having excellent usability can be obtained.
Examples of volatile oil components that can be blended in the present invention include, for example, hydrocarbons such as light isoparaffin, chain polysiloxanes such as volatile low molecular weight dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, Examples thereof include cyclic polysiloxanes such as dodecamethylcyclohexanesiloxane. The volatile oil component in the present invention is arbitrarily selected from one type or two or more types. In the present invention, hydrocarbon is preferable among the volatile oil components. When a hydrocarbon is used, the excellent effects of the present invention are exhibited. The hydrocarbon content may be the total amount in the volatile oil content, but 80% by mass in the volatile oil content.
Sufficient effects are exhibited with the above formulation. Therefore, the preferable content of hydrocarbon is 80 to 10 in the total amount of volatile oil.
It is 0 mass%.

In the present invention, the volatile oil content is W
It is preferably 0 to 20 mass% in the total amount of the / O-type emulsion composition. More preferably, it is 1 to 20 mass%. Especially 10 to 1
8 mass% is preferable. The content of the entire liquid oil including the volatile oil in the present invention is preferably 7 to 30 mass% in the total amount of the W / O type emulsion composition.

The lipophilic powder used in the present invention is not particularly limited as long as it is a lipophilic powder that can be blended in an emulsified composition such as a skin external preparation and a cosmetic. Examples of the lipophilic powder used in the present invention include polymer powder. Examples of the polymer powder include acrylic polymers, nylon, polystyrene, polyethylene, polypropylene, polyurethane, cellulose, silicone such as organopolysiloxane elastomer, and copolymers thereof.

In the present invention, it is possible to use a hydrophilic powder whose surface is subjected to a hydrophobic treatment to make it lipophilic. A general method is used for the hydrophobic treatment, for example, a silicone treatment, a metal soap treatment, a fatty acid treatment, a surfactant treatment, a treatment with an acid, an alkali or an inorganic salt, or a composite treatment thereof. To be
The powder to be treated is not particularly limited, for example, mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silicic acid anhydride (silica), aluminum oxide, barium sulfate, red iron oxide, yellow iron oxide, black iron oxide,
Chromium oxide, ultramarine, navy blue, titanium dioxide, zinc oxide, titanium mica, fish phosphorus foil, bismuth oxychloride, boron nitride,
Red No. 228, Red No. 226, Blue No. 404, and the like. The lipophilic powder in the present invention can be blended by optionally selecting one kind or two or more kinds.

Among the lipophilic powders according to the present invention, acrylic polymer, nylon, polystyrene, silicone,
Alternatively, polymer powder such as a copolymer thereof is preferable. In particular, acrylic polymer or its copolymer is preferable.
Examples of acrylic polymers include acrylic acid esters such as methyl acrylate and methacrylic acid esters such as methyl methacrylate, and copolymers include acrylic acid ester / methacrylic acid ester copolymers and acrylics with these. Examples thereof include copolymers with acids and methacrylic acid, and methyl methacrylate / styrene copolymers. These polymer powders are particularly preferably spherical polymer powders.

The particle size of the spherical polymer powder is not particularly limited, but the average particle size is preferably 1.0 to 15.0 μm. Within this range, a particularly excellent effect is exhibited.
If it exceeds 15.0 μm, a rough texture tends to appear.

As the lipophilic spherical polymer powder, commercially available products can be used. For example, trefil E-505C, E-506C (manufactured by Toray Dow Corning Silicone Co., Ltd.) which is a crosslinked silicone powder, crosslinked polystyrene powder. Fine pearl (manufactured by Sumitomo Chemical Co., Ltd.), which is a polyacrylic powder, Microsphere M, Microsphere M-100, Microsphere M-306.
(All manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.), Techpolymer M
B-8C (made by Sekisui Plastics Co., Ltd.) etc. are mentioned.

In the present invention, all of the lipophilic powders may be spherical polymer powders, but if the spherical polymer powders are contained in an amount of 80% by mass or more based on the total amount of the lipophilic powders, an excellent effect is exhibited. Therefore, it is preferable that the spherical polymer powder is contained in an amount of 80 to 100 mass% in the total amount of the lipophilic powder.
When the content is 80% by mass or more, the feeling of use of the present invention, particularly the feeling of dryness, can be remarkably obtained. A more preferable content is 90 to 100% by mass, and it is particularly preferable that all the powders are spherical powders.

The content of the lipophilic powder in the present invention is W
It is preferably 20 to 50 mass% in the total amount of the / O-type emulsion composition. A more preferable blending amount is 33 to 45% by mass. In particular, 38 to 42 mass% is preferable. ,

The surfactant used in the present invention is not particularly limited as long as it is a surfactant that can be incorporated in an emulsion composition such as a skin external preparation and a cosmetic. Examples of the surfactant include, for example, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether alkylsulfate; tristearylmethylammonium chloride, distearyl chloride. Cationic surfactants such as dimethylammonium, stearyltrimethylammonium chloride, benzalkonium chloride, laurylamine oxide; imidazoline-based amphoteric surfactants (2-cocoyl-
2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine-based surfactants (alkylbetaine, amidobetaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine;

Sorbitan fatty acid esters (sorbitan monoisostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glycerin monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hydrogenated castor oil derivative, Glycerin alkyl ether, POE sorbitan fatty acid esters (POE sorbitan monooleate, POE sorbitan monostearate, etc.), POE sorbit fatty acid esters (POE sorbit monolaurate, etc.), POE glycerin fatty acid esters (POE glycerin monoisostearate, etc.) , POE fatty acid esters (polyethylene glycol monooleate,
Polyethylene glycol monostearate etc.), POE
Alkyl ethers (POE2-octyldodecyl ether etc.), POE alkyl phenyl ethers (POE
Nonylphenyl ether, etc.), Pluronic type, PO
E ・ POP alkyl ethers (POE ・ POP2-decyl tetradecyl ether etc.), Tetronics, PO
E castor oil, hydrogenated castor oil derivative (POE castor oil, P
OE hardened castor oil, etc.), sucrose fatty acid ester, alkyl glucoside, polyether modified organopolysiloxane (POE-added dimethylpolysiloxane, POE / PO)
P-added dimethylpolysiloxane etc.) and the like. POE and POP are polyoxyethylene and polyoxypropylene, respectively. One or two or more kinds of the surfactants in the present invention can be arbitrarily selected and mixed.

In the present invention, it is preferable to use a nonionic surfactant among these surfactants. When a nonionic surfactant is used, a particularly stable W / O type emulsion composition can be obtained. In particular, a nonionic surfactant having an HLB value of 5 or less is preferable. The content of the nonionic surfactant may be the total amount in the surfactant, but if 90% by mass or more is mixed in the surfactant, a sufficient effect is exhibited.
Therefore, the preferable content of the nonionic surfactant is 90 to 100% by mass in the total amount of the surfactant.

The content of the surfactant is preferably 1 to 8% by mass based on the total amount of the W / O type emulsion composition. Particularly preferably 2
It is 5% by mass.

Water is contained in the present invention. The content of water is not particularly limited, but is preferably 20 to 45 mass% in the total amount of the W / O type emulsion composition.

In the W / O type emulsion composition of the present invention,
In addition to the above-mentioned components, other components used in ordinary emulsified compositions such as cosmetics and external preparations for skin, for example, solid oil, hydrophilic powder, humectant, thickener, water-soluble polymer, high water-insolubility Molecules, lower alcohols, polyhydric alcohols, sugars, UV absorbers, amino acids, vitamins, drugs, plant extracts, organic acids, organic amines, sequestering agents, pH adjusters, antioxidants, antibacterial agents, antiseptic Agents, cooling agents, fragrances, dyes and the like can be appropriately added as needed within a range that does not impair the effects of the present invention.

Of the above optional ingredients, specific examples of the solid oil content include, for example, hydrogenated coconut oil, hydrogenated oil, oak, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, ibotaro, lanolin, reduced lanolin, Oils / waxes / waxes such as hard lanolin and jojoba wax;
Hydrocarbons such as ozokerite, paraffin, ceresin, petrolatum, microcrystalline wax; lauric acid,
Examples include higher fatty acids such as myristic acid, palmitic acid, stearic acid, and behenic acid; higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, and cetostearyl alcohol. One or more solid oil components can be arbitrarily selected and blended.

Specific examples of moisturizers include polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol, diglycerin, sodium pyrrolidonecarboxylate. , Lactic acid, sodium lactate and the like. The humectant can be blended by optionally selecting one kind or two or more kinds.

Examples of the thickener / water-soluble polymer include, for example,
Guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose,
Methyl hydroxypropyl cellulose, chondroitin sulfate, dermatan sulfate, glycogen, heparan sulfate,
Hyaluronic acid, sodium hyaluronate, tragacanth gum, keratan sulfate, chondroitin, mucoitin sulfate,
Hydroxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethyl chitin, agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, sodium polyacrylate, polyethylene Examples thereof include glycol and bentonite. As the thickener / water-soluble polymer, one kind or two or more kinds may be arbitrarily selected and mixed.

The W / O type emulsion composition of the present invention comprises:
The above-mentioned essential components and optional components are blended, and they are composed of non-volatile components and volatile components. In the present invention, the content of the lipophilic powder is 5 in the total amount of non-volatile components.
An essential requirement is 0-80% by mass. If the content is less than 50% by mass, the product will have a sticky feel, and
If it exceeds 80 mass%, the applied powder will be whitish. A more preferable content is 55 to 70% by mass. Particularly, 58 to 65 mass% is preferable. The components according to the present invention contained in the non-volatile components, non-volatile liquid oil, lipophilic powder, other essential components of the surfactant, moisturizer,
Examples include optional components such as solid oil, thickener, water-soluble polymer, and water-insoluble polymer.

In the present invention, the volatile component is W /
It is preferable to contain 30 to 60 mass% of the total amount of the O-type emulsion composition. Examples of the component of the present invention contained in the volatile component include water, which is an essential component, and optional components such as a volatile oil component and a lower alcohol.

The W / O type emulsion composition of the present invention can be obtained by blending the above components and treating according to a conventional method. The W / O type emulsion composition of the present invention can be preferably applied to skin external preparations, cosmetics, etc.
It is useful for quasi drugs and cosmetics. Skin external preparation,
The cosmetics are not particularly limited as long as an emulsion type dosage form can be applied, for example, emulsions, basic cosmetics such as creams, makeup cosmetics such as foundations, hair cosmetics such as hair creams, Mention may be made of cosmetics for the whole body such as body cream. And the form which the W / O type emulsion composition of this invention can take is not limited to these forms.

[0039]

EXAMPLES The present invention will be specifically described with reference to the following examples. The blending amount is% by mass. Prior to the description of the examples, the effect test method used in the present invention will be described.

Test / Evaluation Method: (1) Use Test With respect to the evaluation items of the dry feeling and the persistence of the dry feeling, a use test was conducted by a 20-member specialized panel, and evaluation was made based on the following evaluation point criteria. Then, the evaluation points given by each person were totaled and evaluated based on the following evaluation criteria.

(Evaluation point criteria) 5 points: Very good. 4 points: excellent. 3 points: Normal. 2 points: inferior. 1 point: Very poor. (Evaluation criteria) A: The total score is 80 or more. ◯: The total score is 60 or more and less than 80 Δ: The total score is 40 or more and less than 60. X: The total points are less than 40 points.

Examples 1 to 4 and Comparative Examples 1 to 2 W / O type emulsion compositions having the formulations shown in Table 1 were prepared by the following method.
In the component, the spherical polymer A is the techpolymer MB-8C described above.
(Polyacrylic powder manufactured by Sekisui Plastics Co., Ltd.).
After dissolving (1), (3) and (6), (2) was dispersed (oil phase portion). Then, (4), (5) and (7), (8) were mixed and dissolved (aqueous phase part). A water phase part was added to the oil phase part and stirred to prepare a W / O type emulsion composition.

[0043]

[Table 1]

Table 2 shows the evaluation results of Examples 1 to 4 and Comparative Examples 1 and 2.

[0045]

[Table 2]

As can be seen from Table 2, 5 out of the non-volatile components
Examples 1 to 4 containing 0 to 79% by mass of lipophilic powder
Had an excellent effect on both the dry feeling and the persistence of the dry feeling.

On the other hand, Comparative Example 1 containing 45% by mass of the lipophilic powder in the non-volatile component and Comparative Example 2 containing 85% by mass of the lipophilic powder in the non-volatile component both had a dry feeling. It can be seen that it is scarce and the persistence of dryness is poor.

The W / O type emulsion compositions of the present invention having various formulations were manufactured according to the method shown in Table 1 and will be shown as examples.
Regarding the W / O type emulsion compositions in these examples,
When the above effect tests were conducted, excellent results were obtained in all cases.

[0049]   Example 5 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 15.0 (2) Spherical polymer A (Note) 20.0 (3) Spherical polymer B (Note) 10.0 (4) Spherical polymer C (Note) 10.0 (5) Sorbitan monoisostearate 4.0 (6) 1,3-butylene glycol 1.5 (7) Glycerin 2.0 (8) Methylparaben 0.3 (Volatile component) (9) Light isoparaffin 14.0 (10) Purified water 20.2 (11) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C             Spherical polymer B; Trefil E-506C             Spherical polymer C: Fine pearl

[0050]   Example 6 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 15.0 (2) Spherical polymer A (Note) 32.0 (3) Silicone treated silica 5.0 (4) Silicone treated talc 3.0 (5) Sorbitan monoisostearate 4.0 (6) 1,3-butylene glycol 3.5 (7) Methylparaben 0.3 (Volatile component) (8) Light isoparaffin 14.0 (9) Purified water 20.2 (10) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0051]   Example 7 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 10.0 (2) Spherical polymer A (Note) 42.0 (3) Sorbitan monoisostearate 4.0 (4) 1,3-butylene glycol 3.0 (5) Glycerin 0.5 (6) Methylparaben 0.3 (Volatile component) (7) Purified water 37.2 (8) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0052]   [Example 8] W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 10.0 (2) Spherical polymer A (Note) 42.0 (3) Sorbitan monoisostearate 4.0 (4) 1,3-butylene glycol 3.5 (5) Methylparaben 0.3 (Volatile component) (6) Light isoparaffin 5.0 (7) Purified water 32.2 (8) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0053]   Example 9 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 10.0 (2) Spherical polymer A (Note) 42.0 (3) Sorbitan monoisostearate 4.0 (4) 1,3-butylene glycol 3.5 (5) Methylparaben 0.3 (Volatile component) (6) Light isoparaffin 10.0 (7) Purified water 27.2 (8) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0054]   [Example 10] W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 10.0 (2) Spherical polymer A (Note) 42.0 (3) Sorbitan monoisostearate 4.0 (4) 1,3-butylene glycol 3.5 (5) Methylparaben 0.3 (Volatile component) (6) Light isoparaffin 18.0 (7) Purified water 19.2 (8) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0055]   Example 11 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 15.0 (2) Spherical polymer A (Note) 42.0 (3) Sorbitan monoisostearate 4.0 (4) 1,3-butylene glycol 2.5 (5) Glycerin 1.0 (6) Methylparaben 0.3 (Volatile component) (7) Light isoparaffin 10.0 (8) Decamethylcyclopentasiloxane 2.0 (9) Purified water 20.2 (10) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0056]   Example 12 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 13.0 (2) Dimethyl polysiloxane 4.0 (3) Glyceryl tri-2-ethylhexanoate 5.0 (4) Microcrystalline wax 0.2 (5) Candelilla wax 0.1 (6) Spherical polymer A (Note) 38.0 (7) Sorbitan monoisostearate 4.0 (8) 1,3-butylene glycol 3.2 (9) Methylparaben 0.3 (Volatile component) (10) Light isoparaffin 8.0 (11) Purified water 21.2 (12) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0057]   [Example 13] W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 10.0 (2) Diisostearyl malate 5.0 (3) Diglyceryl triisostearate 5.0 (4) Carnauba wax 0.1 (5) Candelilla wax 0.2 (6) Spherical polymer A (Note) 38.0 (7) Sorbitan monoisostearate 4.0 (8) 1,3-butylene glycol 3.2 (9) Methylparaben 0.3 (Volatile component) (10) Light isoparaffin 10.0 (11) Purified water 21.2 (12) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0058]   Example 14 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 16.0 (2) Spherical polymer A (Note) 38.0 (3) Sorbitan monoisostearate 5.0 (4) Distearyl dimethyl ammonium chloride (cation DS) 1.0 (5) 1,3-butylene glycol 3.5 (6) Methylparaben 0.3 (Volatile component) (7) Light isoparaffin 12.0 (8) Purified water 21.2 (9) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0059]   Example 15 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 14.0 (2) Spherical polymer A (Note) 38.0 (3) Sorbitan monoisostearate 4.0 (4) POE (10) hydrogenated castor oil 2.0 (5) Polyether-modified organopolysiloxane 2.0 (6) 1,3-butylene glycol 3.5 (7) Methylparaben 0.3 (Volatile component) (8) Light isoparaffin 12.0 (9) Purified water 21.2 (10) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0060]   Example 16 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 2.0 (2) Microcrystalline wax 0.1 (3) Spherical polymer A (Note) 20.0 (4) Sorbitan monoisostearate 4.0 (5) 1,3-butylene glycol 8.0 (6) Glycerin 5.6 (7) Methylparaben 0.3 (Volatile component) (8) Light isoparaffin 17.0 (9) Purified water 40.0 (10) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0061]   Example 17 W / O type emulsion composition       Ingredient amount (% by mass) (Nonvolatile component) (1) Squalane 10.0 (2) Spherical polymer A (Note) 30.0 (3) Sorbitan monoisostearate 3.0 (4) 1,3-butylene glycol 2.0 (5) Glycerin 4.7 (6) Methylparaben 0.3 (Volatile component) (7) Light isoparaffin 5.0 (8) Purified water 42.0 (9) Ethanol 3.0       (Note) Spherical polymer A; Techpolymer MB-8C

[0062]

As described above in detail, according to the present invention,
It is possible to obtain a W / O type emulsion composition such as an external preparation for skin and cosmetics, which is excellent in the feeling of use such as further smoothing the skin and has excellent sustainability of the effect.

Continued front page    F term (reference) 4C076 AA17 BB31 DD01 DD34 DD37                       DD38 DD46 EE02 EE17 EE52                       FF43                 4C083 AA122 AB051 AC012 AC022                       AC102 AC122 AC172 AC242                       AC442 AC482 AC692 AD022                       AD042 AD092 AD152 AD162                       BB01 BB13 BB14 CC01 CC02                       CC05 DD32 EE06

Claims (7)

[Claims] 1. A W / O type emulsion composition comprising a nonvolatile component and a volatile component, containing a non-volatile liquid oil, water, a lipophilic powder and a surfactant, wherein the content of the lipophilic powder is Is 50 to 80% by mass based on the total amount of nonvolatile components W /
O-type emulsion composition. 2. The W / O type emulsion composition according to claim 1, further comprising a volatile oil component. 3. The W / O type emulsion composition according to claim 1, wherein the content of the volatile oil component is 1 to 20% by mass based on the total amount of the W / O type emulsion composition. 4. The W / O type emulsion composition according to claim 1, wherein the lipophilic powder comprises spherical polymer powder. 5. The W / O type according to claim 1, wherein the content of the lipophilic powder is 20 to 50 mass% in the total amount of the W / O type emulsion composition. Emulsified composition. 6. The W / O type emulsion composition according to any one of claims 1 to 5, which is a skin external preparation. 7. The W / O type emulsion composition according to claim 1, which is a cosmetic.