JP3276659B2 - Water / oil repellent powder and cosmetics containing it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention has excellent water and oil repellency,
The present invention relates to a powder for cosmetics which does not lose makeup, has good elongation on the skin, and has a good feel upon use, and a cosmetic containing the same.

[0002]

2. Description of the Related Art Cosmetics containing powders include makeup cosmetics such as foundations, white powders, blushers, eye shadows, eye blows, and body cosmetics such as body powders and baby powders. Are commercially available. Cosmetics containing these powders for cosmetics are required to have good cosmetic properties such as good stretch on the skin, good use feeling such as smoothness, and little change in makeup due to sebum.

[0003] In recent years, powders have been treated with fluorine compounds for the purpose of preventing makeup collapse due to sebum or the like, and have been used for water repellency.
It has been proposed to impart oil repellency (Japanese Unexamined Patent Publication No.
167209, JP-A-62-275074, JP-A-1-180811, U.S. Pat. No. 3,632,744).

[0004] However, these water- and oil-repellent powders have a drawback that the smoothness during use becomes extremely poor as compared to before the treatment with a fluorine compound. Therefore,
It has been desired to provide a cosmetic powder having both excellent oil repellency and smooth feel.

[0005]

Under these circumstances, the present inventors have conducted intensive studies and as a result, have found that the above-mentioned problems can be solved by subjecting powder to surface treatment by a specific method. completed.

That is, the present invention provides the following (a)
It is intended to provide a water-repellent / oil-repellent powder obtained by performing a surface treatment with the agent and the agent (b).

(A) Agent: a fluorinated alcohol represented by the general formula (1). Rf ¹ (CH ₂ ) _m O (AO) _n H (1) [wherein, Rf ^{1 is a} straight-chain or branched-chain carbon atom having 3 to 12 carbon atoms.
Or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. A: The same or different and represents an alkylene group having 2 to 3 carbon atoms. m: Indicates the number of 0 to 12. n: Indicates a number from 0 to 10. ]

(B) Agent: a compound having in the molecule a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. (However, a fluorinated alcohol represented by the general formula (1) is excluded).

The powder used in the present invention (the one not subjected to the surface treatment with the agents (a) and (b); hereinafter, referred to as "raw powder") is not particularly limited. However, for example, silicic acid, silicic anhydride, magnesium silicate, talc, sericite, mica, kaolin, montmorillonite, clay, bentonite, titanium oxide film mica (titanium mica), bismuth oxychloride, boron nitride, zirconium oxide, oxidation Magnesium, zinc oxide, titanium oxide, lower titanium oxide, aluminum oxide,
Inorganic powders such as calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, red iron oxide, black iron oxide, yellow iron oxide, ultramarine, navy blue, chromium oxide, chromium hydroxide, calamine, carbon black, and composites thereof A polyamide, a polyethylene, a polypropylene, a polystyrene, a polyurethane, a vinyl resin, a urea resin, a melamine resin, an epoxy resin, a polycarbonate resin, a divinylbenzene / styrene copolymer, a silk powder, a cellulose, a metal soap, a tar pigment and a lake pigment thereof. And organic powders such as natural pigments; composites of these inorganic powders and organic powders. These powders are used alone or in combination of two or more. The shape of the raw powder is not particularly limited, and a flat, massive, flaky, spherical powder or the like can be used regardless of the presence or absence of pores. Particularly preferred. The primary particle diameter of the raw powder is not particularly limited as long as the outer shape of the powder is kept, but from the viewpoint of feeling of use, it is 0.01 to
80 μm, particularly preferably 0.1 to 20 μm.

As the agent (a) used for the surface treatment of the raw powder, ie, the fluorinated alcohol (1), the following compounds can be exemplified. These may be used alone or in combination of two or more.

[0011]

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Further, as the agent (b), a linear or branched perfluoroalkyl group having 6 or more carbon atoms, preferably 6 to 21 carbon atoms, or one of the fluorine atoms of the perfluoroalkyl group is contained in the molecule. The compound is not particularly limited as long as it is a compound other than the fluorinated alcohol (1) having a group substituted with a hydrogen atom, but the following compounds (b-1) and (b
One or more selected from the group consisting of -2), (b-3), (b-4) and (b-5) is preferable.

Compound (b-1): a phosphate ester represented by the general formula (2). ^{_{[Rf 2 (CH 2) m}} O (AO) n] y PO (OM) 3-y (2) wherein, Rf ^2: carbon atoms straight or branched chain 6-21
Or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. M: represents a hydrogen atom, an alkali metal, an ammonium group or a substituted ammonium group. y: Indicates the number of 1 to 3. A, m, n: Means as described above. ]

As a specific example of the phosphate (2),
Is diheptadecafluorodecyl phosphate [(C₈F₁₇C_TwoH_FourO)
_TwoP (= O) (OH)], heptadecafluorodecyl phosphate [(C₈F
₁₇C_TwoH_FourO) P (= O) (OH)_Two], Heptadecafluorodecyl phosphorus
A mixture of acid and diheptadecafluorodecyl phosphate
Sesquiheptadecafluorodecyl phosphate [(C₈F₁₇C_TwoH _FourO)
_rP (= O) (OH)_3-r(2> r> 1), smell of the general formula (1)
And Rf¹Is perfluorinated with 6 to 18 carbon atoms (average 9)
And y is approximately 1.5 and M is a hydrogen atom.
Phosphate ester ((C_lf_{2l + 1}C_TwoH_FourO)_1.5P (= O) (OH)_1.5]
(L = 6-8 (average 9)) and their phosphoric acid
Stell alkali metal salts, ammonium salts, substituted ammo
Ammonium salts (eg, monoethanolammonium salts, die
Tananol ammonium salt, triethanol ammonium
Alkanol ammonium salts such as salts and basic amino acid salts
And the like.

Compound (b-2): an epoxy compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom.

Specific examples of the epoxy compound include the following compounds.

[0017]

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Compound (b-3): a silane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom.

Specific examples of this silane compound include the following compounds.

[0020]

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Compound (b-4): Titanium having a straight-chain or branched-chain perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. Compound.

Specific examples of the titanium compound include the following compounds.

[0023]

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Compound (b-5): a polysiloxane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. .

Specific examples of the polysiloxane compound include the following compounds.

[0026]

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The method of surface treatment of the raw powder for obtaining the water- and oil-repellent powder of the present invention is not particularly limited, and any of a dry method by a known direct treatment and a wet method using an appropriate solvent may be used. Can be. In this case, after the surface treatment of the raw powder with the agent (a), the surface treatment is then performed with the agent (b).

The treatment amount of the agent (a) with respect to the raw powder is preferably 0.05 to 20% by weight, more preferably 0.5 to 20% by weight.
15% by weight. If it is less than 0.05% by weight, the surface treatment effect is not sufficient, and if it exceeds 20% by weight, the treatment effect is not so improved, so that there is not much benefit from the viewpoint of economy. The processing amount of the agent (b) to the raw powder is 0.01 to 30% by weight, more preferably 0.5 to 30% by weight.
１５15% by weight. If it is less than 0.01% by weight, sufficient water resistance and oil resistance cannot be obtained, and if it exceeds 30% by weight, the feeling in use becomes poor, which is not preferable.

The dry method as a surface treatment means is a simple and effective method, and according to this method, a fine powder of a surface treatment agent and a powder are stirred and mixed, or the surface treatment agent and the powder are mixed. After the bodies are mixed and co-ground, the surface of the powder can be easily treated. In the case of using a wet method, the surface treatment agent may be treated with an appropriate solvent (eg, water, ethanol, isopropyl alcohol, chloroform, Freon®).
113 and a solvent for dissolving the surface treating agent such as a mixed solvent thereof), and the resulting mixture is added to the raw powder by spraying or dropping, and uniformly dispersed, and then dried at room temperature or after heating. However, when the number of carbon atoms of the compound of the surface treatment agent is 8 or more, the solubility in the solvent is remarkably reduced. Therefore, mixing is performed in a heated state, or an ether solvent such as diethyl ether or diisopropyl ether, or Freon R113,
It is preferable to dry at room temperature or after heating using a mixed solvent system of a fluorine-based solvent such as hexafluorometa-xylene and an alcohol such as methanol, ethanol and isopropanol. In performing such a surface treatment, for example, a mixing and stirring device such as a Henschel mixer, a vibrating ball mill, a rotary ball mill, and a super mixer can be used.

The water / oil repellent powder of the present invention thus obtained exhibits excellent water / oil repellency and can be suitably used as a compounding component of cosmetics. The amount of the water-repellent / oil-repellent powder of the present invention in the cosmetic of the present invention is not particularly limited, but is preferably 0.1 to 99% by weight.

Further, in the cosmetic of the present invention, in addition to the water-repellent and oil-repellent powder of the present invention, if necessary, components which are blended in ordinary cosmetics can be blended. For example, petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids, solid and semi-solid oils such as higher alcohols; squalane, liquid paraffin, ester oil, diglyceride, triglyceride,
Fluid oils such as silicone oil; perfluoropolyether,
Fluorinated oils such as perfluorodecalin and perfluorooctane; water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, silicone, soaps, lecithin,
Inorganic and organic pigments surface-treated with amino acids, collagen, polymers, fluorine compounds, etc., coloring agents such as tar pigments and natural pigments, ethanol, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, An ultraviolet absorber, a humectant, a blood circulation promoter, a cooling agent, an antiperspirant, a bactericide, a skin activator, water and the like can be blended within a qualitative and quantitative range that does not impair the effects of the present invention. The cosmetic of the present invention can be produced by a usual method, and can be used as a foundation for makeup cosmetics such as a powder foundation, a creamy foundation, an oily foundation, a dual-use foundation, a whitening face, an eye shadow, a blusher, and the like, a milky lotion, a cream and the like. The present invention can be applied to body cosmetics such as cosmetics, body powder, and baby powder.

[0032]

Next, the present invention will be described in detail with reference to Examples, but it should not be construed that the invention is limited thereto.

Example 1 100 g of sericite and 5.0 g of 1-heptadecafluorodecanol were put into a Henschel mixer and mixed for 10 minutes to perform a surface treatment on the sericite, followed by a treatment with 1-heptadecafluorodecanol. 105 g of sericite was obtained. Next, 105 g of the obtained 1-heptadecafluorodecanol-treated sericite was placed in a round bottom flask, and diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P
(= O) (OH)] in 500 g of isopropyl alcohol
Was added and mixed at 60 ° C. for 4 hours. Thereafter, isopropyl alcohol was distilled off under reduced pressure and dried to obtain 110 g of the desired water / oil repellent powder.

Example 2 5 g of 1-heptadecafluorodecanol was placed in a 1-liter round bottom flask (or kneader) with isopropyl alcohol 5
100 g of sericite was added to the solution dissolved in
After mixing at 0 ° C. for 1 hour, isopropyl alcohol was distilled off under reduced pressure and dried to obtain 105 g of 1-heptadecafluorodecanol-treated sericite. Next, the obtained 1
-Heptadecafluorodecanol treated sericite 105
g in a round-bottom flask, 500 ml of ion-exchanged water was added, and then perfluoroalkylphosphate dioxyethylamine salt [(C _n H _{2n + 1} C ₂ H ₄ O) _y P (= O) ( ONH ₂ (CH ₂ C
_{H 2 OH) 2) 3-} y ] (n = 6~18, n = 9,2 >y> 1) about 17.5% aqueous solution 33g were added and stirred at 40 ° C..
Next, 40 mL of 1N hydrochloric acid was added to lower the pH of the aqueous solution to 3 or less, and perfluoroalkylphosphoric acid was precipitated on the powder surface, which was filtered, washed with water, and dried to obtain the desired water- and oil-repellent powder. 110 g of a body were obtained.

Example 3 100 g of sericite and 5.0 g of 1-heptadecafluorodecanol were placed in a Henschel mixer and mixed for 10 minutes to perform the surface treatment of the above sericite, followed by 1-heptadecafluorodecanol treatment. 105 g of sericite was obtained. Next, 105 g of the obtained 1-heptadecafluorodecanol-treated sericite was put into a round-bottom flask, and heptadecafluorodecyltriethoxysilane [(C ₈ F
₁₇ C ₂ H ₄ ) -Si- (OC ₂ H ₅ ) ₃ ] 5.0 g to 500 ml of ethanol
And mixed at 60 ° C. for 1 hour. Thereafter, ethanol is distilled off under reduced pressure and dried to obtain the desired water- and oil-repellent powder 1
08 g were obtained.

Example 4 In Example 3, diheptadecafluorodecyl phosphate was used in place of heptadecafluorodecyltriethoxysilane [(C ₈ F ₁₇ C ₂ H ₄ ) -Si- (OC ₂ H ₅ ) ₃ ]. Example 1 except that the triisopropoxytitanium salt of [[(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (= O) -O] -Ti- (OC ₂ H ₅ ) ₃ ] was used. To obtain the desired water- and oil-repellent powder.

Example 5 In Example 1, the following compound having a perfluoroalkyl group in place of diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (OO) (OH)] was used. The same water-repellent and oil-repellent powder was obtained by treating under substantially the same conditions as in Example 1 except that the polysiloxane compound was used.

[0038]

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Example 6 In Example 1, the following heptadecafluoroundecene oxide was used in place of diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (= O) (OH)]. The same treatment as in Example 1 was carried out except for using, to obtain a desired water- and oil-repellent powder.

[0040]

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Example 7 The same water- and oil-repellency properties as those of Example 2 were obtained except that barium sulfate (manufactured by Sakai Chemical Industry) was used in place of sericite. A powder was obtained.

Comparative Example 1 100 g of sericite and 5.0 g of 1-heptadecafluorodecanol were placed in a Henschel mixer and mixed for 10 minutes to perform the surface treatment of the sericite.
05 g were obtained.

Comparative Example 2 In a 1-liter round bottom flask (or kneader), diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (= O) (OH)] 5.
100 g of sericite was added to a solution obtained by dissolving 0 g in 500 g of isopropyl alcohol, and mixed at 60 ° C. for 4 hours. Then, isopropyl alcohol was distilled off under reduced pressure and dried to obtain 105 g of a comparative powder.

Comparative Example 3 100 g of sericite was placed in a round bottom flask, and heptadecafluorodecyltriethoxysilane [(C ₈ F ₁₇ C
5.0 g of ₂ H ₄ ) -Si- (OC ₂ H ₅ ) ₃ ] was added together with 500 ml of ethanol, and mixed at 60 ° C. for 1 hour. Thereafter, ethanol was distilled off under reduced pressure and dried to obtain 103 g of a target comparative powder.

Comparative Example 4 In Comparative Example 3, diheptadecafluorodecyl phosphate was used instead of heptadecafluorodecyltriethoxysilane [(C ₈ F ₁₇ C ₂ H ₄ ) -Si- (OC ₂ H ₅ ) ₃ ]. Comparative Example 3 except that the triisopropoxytitanium salt [[(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P ((O) -O] -Ti- (OC ₂ H ₅ ) ₃ ] was used. To obtain the target comparative powder.

Comparative Example 5 In Comparative Example 2, diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (= O) (OH)] was used in place of par. A comparative powder was obtained by treating under substantially the same conditions as in Comparative Example 2 except that a polysiloxane compound having a fluoroalkyl group was used.

Comparative Example 6 In Comparative Example 2, diheptadecafluorodecyl phosphate [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ P (= O) (OH)] was used instead of heptadeca used in Example 6. A comparative powder was obtained by treating under substantially the same conditions as in Comparative Example 2 except that fluoroundecene oxide was used.

Test Example 1 Each of the powders obtained in Examples 1 to 7 and Comparative Examples 1 to 6 was evaluated for water repellency, oil repellency and feel in use by the following evaluation methods. The results are shown in Table 1 below. (Evaluation method of water repellency) Put 15 ml of water in a 30 ml beaker, float about 0.05 g of each powder on the water, shake the beaker, observe the dispersibility of the powder in water, and evaluate the following. The evaluation was based on criteria.

Evaluation Criteria 0: The powder was immediately dispersed in water. 1: When the beaker was shaken, the powder was almost completely dispersed in water within 30 seconds. 2: When the beaker was shaken, the water became white and cloudy after 1 minute, but powder floating in the water was also observed. 3: When the beaker was shaken, the water became cloudy and white after 1 minute, but there were many powders floating on the water. 4: One minute after the beaker was shaken, the water was not white and cloudy, and no powder dispersed in the water was observed. Even when the beaker was shaken for 5: 1 minutes or more, no powder dispersed in water was observed.

(Evaluation method of oil repellency) Evaluation was made in the same manner as in the evaluation method of water repellency except that squalane was placed in a 30 ml beaker instead of water. (Evaluation Method of Feeling) The feeling of powder, such as smoothness, squeaking, and roughness, was evaluated by five professional panelists on a scale of 1 to 5 shown below, and the average value was shown.
The feel of untreated powder of sericite A (manufactured by Horie Kako Co., Ltd.) having an average particle size of 7 μ was set to a standard value of 3.0. 1: The feeling such as smoothness is poor. 2: The touch such as smoothness is slightly poor. 3: Normal (equivalent to Sericite A) 4: Feeling such as smoothness is slightly good. 5: Good feeling such as smoothness.

[0051]

[Table 1]

According to Table 1, the water-repellent and oil-repellent powder of the present invention is obtained by using either a fluorinated alcohol or a compound having at least one perfluoroalkyl group having 6 or more carbon atoms in the molecule alone. It can be seen that the water repellency, the oil repellency and the feel are excellent as compared with the case of the treatment.

Example 8 Pressed Face Powder Pressed face powders having the compositions shown in Table 2 below were produced according to the following production methods, respectively, and the makeup durability and the feeling of use against sweat and sebum were evaluated by the following evaluation methods. Table 3 shows the results. (Preparation method) The powder components were mixed and pulverized, transferred to a Henschel mixer, and an oil agent and a fragrance were added and mixed so as to be uniform. This was press-molded on a metal plate to obtain a product.

[0054]

[Table 2]

(Evaluation Method) Sensory evaluation of the following products for cosmetic durability and use feeling was conducted by 10 expert panelists, and the results were shown according to the following criteria. ：: 8 or more good △: 4 to 7 good ×: Less than 4 good

[0056]

[Table 3]

As is evident from Table 3, the product of the present invention was a pressed face powder which was more excellent in cosmetic durability and use feeling than the comparative product.

Example 9 Powder foundation A powder foundation having the following composition was produced in the same manner as in Example 8. (Composition) (% by weight) (1) Water-repellent and oil-repellent cosmetic powder (the one treated in the same manner as in Example 2 is later mixed)-Sericite 45.0-Mica 23.0-Kaolin 5.0・ Titanium oxide 10.0 ・ Bengara 2.0 ・ Yellow iron oxide 2.5 ・ Black iron oxide 0.1 (2) Perfluoropolyether (FOMBLIN HC-04, manufactured by Monteflors) 10.0 (3) Dimethylpoly Siloxane 2.0 (4) Preservative 0.2 (5) Fragrance 0.2

Example 10 Blush A blush having the following composition was prepared in the same manner as in Example 8. (Composition) (% by weight) (1) Water- and oil-repellent pigment (treated in the same manner as in Example 2 and later mixed) Kaolin Balance Mica 13.0 Titanium oxide 12.0 Red No. 202 2 0.4 Iron oxide (red, black, yellow) 5.0 (2) Squalane 7.5 (3) Dimethylpolysiloxane 7.5 (4) Preservative 0.05 (5) Fragrance 0.05

Example 11 Powder Eye Shadow Pigments other than titanium mica were first mixed and pulverized, and then titanium mica was mixed. Otherwise, in the same manner as in Example 8, a powder eye shadow having the following composition was produced. (Composition) (% by weight) (1) Water / oil repellent pigment (treated in the same manner as in Example 2 and mixed later) • Titanium mica 4.9 • Sericite balance • Mica 24.7 • Iron oxide ( (Red, yellow, black) 2.0-Ultramarine blue 9.8-Dark blue 14.6 (2) Dimethylpolysiloxane 1.9 (3) Squalane 1.9 (4) Vaseline 1.9 (5) Sorbitan trioleate 1. 0 (6) Preservative 1.0 (7) Fragrance 0.1

Example 12 Dual-Use Powder Foundation A dual-use powder foundation having the following composition was prepared in Example 11.
It was manufactured in the same manner as described above. (Composition) (% by weight) (1) Water-repellent / oil-repellent pigment (the one treated in the same manner as in Example 2 is mixed later) • Mica balance • Talc 4.8 • Titanium oxide 14.0 • Titanium mica 5 Iron oxide (red, yellow, black) 8.2 Zinc oxide 4.5 Aluminum oxide 10.0 Barium sulfate 5.0 Polyethylene powder 1.0 (2) Dimethylpolysiloxane 4.0 (3 ) Lanolin 6.0 (4) Vaseline 1.0 (5) Liquid paraffin 1.0 (6) Isopropyl myristate 1.0 (7) Preservative 1.5 (8) Fragrance 0.1

Example 13 Loose type face powder A powder component was mixed and pulverized, transferred to a Henschel mixer, added with an oil agent and a fragrance and mixed so as to be uniform.
Through a sieve, a loose type face powder having the following composition was produced. (Composition) (% by weight) (1) Processed powder of Example 7 50.0 (2) Talc balance (3) Bengala 0.1 (4) Liquid paraffin 1.0 (5) Fragrance 0.1

Example 14 Two-Layer Separated Sunscreen Emulsion After dissolving the oil phase at room temperature, a pigment was added and dispersed with a disper. The aqueous phase was added with stirring and emulsified to produce a sunscreen emulsion having the following composition. (Composition) (% by weight) (1) Octamethylcyclotetrasiloxane 25.0 (2) Perfluoropolyether (FOMBLIN HC-04, manufactured by Montefros) 10.0 (3) Dimethylpolysiloxane / polyoxyalkylene Merged 1.0 (4) Glycerin 2.0 (5) Ethanol 12.0 (6) Residual amount of purified water (7) Octyl methoxycinnamate 2.0 (8) Zinc oxide (treated in the same manner as in Example 2) 7.5) (9) Talc (treated in the same manner as in Example 2) 7.0 (10) Perfume

Example 15 Sunscreen Cream A homogeneous mixed solution of components 10 and 12 dispersed in component 9 with a disper and components 6 to 8 was added to the aqueous components of components 1 to 5 under stirring to emulsify. A sunscreen cream having the following composition was produced. (Composition) (% by weight) (1) Polyoxyethylene (50) hydrogenated castor oil 0.5 (2) Polyoxyethylene (20) sorbitan palmitate 1.0 (3) Glycerin 6.0 (4) 1, 3 -Butylene glycol 6.0 (5) purified water 15.5 (6) squalane 5.0 (7) jojoba oil 5.0 (8) octamethylcyclotetrasiloxane 18.0 (9) perfluoropolyether (FOMBLIN HC −04, manufactured by Montefros Co., Ltd.) 35.0 (10) Titanium oxide (treated in the same manner as in Example 2) 1.0 (11) Talc (treated in the same manner as in Example 2) 5.0 ( 12) Octyl methoxycinnamate 2.0

Example 16 Two-layer separation type liquid foundation After dissolving the oil phase at room temperature, a pigment was added and dispersed by a disper. The aqueous phase was added with stirring and emulsified to produce a liquid foundation having the following composition. (Composition) (% by weight) (1) Pigment (treated in the same manner as in Example 2 and mixed later)-Titanium oxide 6.0-Sericite 9.0-Iron oxide (red, yellow, black) 2 (2) Octamethylcyclotetrasiloxane 20.0 (3) Dimethylpolysiloxane (KF-96A, 6cs, manufactured by Shin-Etsu Chemical Co., Ltd.) 2.0 (4) Dimethylpolysiloxane / polyoxyalkylene copolymer 1.0 ( 5) Perfluoropolyether (FOMBLIN HC-04, manufactured by Monteflors) 10.0 (6) Glycerin 2.0 (7) Ethanol 15.0 (8) Remaining amount of purified water (9) Appropriate amount of perfume

Each of the cosmetics of the present invention obtained in Examples 9 to 16 was excellent in use feeling and extremely long lasting.

[0067]

EFFECT OF THE INVENTION The water- and oil-repellent cosmetic powder of the present invention is
The cosmetic of the present invention, which is excellent in water repellency and oil repellency and excellent in use feeling, especially excellent in smoothness, and which contains the water repellent and oil repellent cosmetic powder of the present invention, is water-resistant. It has good sebum resistance and oil resistance, is excellent in the effect of preventing makeup collapse due to sebum and the like (makeup persistence), has good elongation on the skin, and has excellent use feeling, particularly excellent smoothness.

────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification symbol FI C09K 3/18 102 C09K 3/18 104 104 B01J 13/02 Z (56) References JP-A-4-91008 (JP, A) JP-A-63-183508 (JP, A) JP-A-63-183509 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61K 7/00 A61K 7/02 B01J 13/02

Claims (2)

(57) [Claims] 1. A water-repellent material obtained by subjecting a powder to a surface treatment with the following agent (a) and then a surface treatment with the agent (b).
Oil-repellent powder: (a) Agent: fluorinated alcohol represented by the general formula (1): Rf ¹ (CH ₂ ) _m O (AO) _n H (1) [wherein, Rf ^{1 is a} linear or branched chain 3-12 carbon atoms
Or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. A: The same or different and represents an alkylene group having 2 to 3 carbon atoms. m: Indicates the number of 0 to 12. n: Indicates a number from 0 to 10. (B) agent: the following compounds (b-1), (b-2), (b-
3) One or more compounds selected from the group consisting of (b-4) and (b-5): Compound (b-1): Phosphate represented by general formula (2): [Rf ² (CH ₂ ) _m O (AO) _n ] _y PO (OM) _3-y (2) [wherein, Rf ^{2 is a} straight-chain or branched-chain carbon number of 6 to 21.
Or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom. M: represents a hydrogen atom, an alkali metal, an ammonium group or a substituted ammonium group. y: Indicates the number of 1 to 3. A, m, n: Means as described above. Compound (b-2): an epoxy compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom; (B-3): a silane compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom; 4): a titanium compound having a linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom; compound (b-5): A linear or branched perfluoroalkyl group having 6 or more carbon atoms or a group in which one of the fluorine atoms of the perfluoroalkyl group is substituted with a hydrogen atom A polysiloxane compound having the formula: 2. A cosmetic containing the water- and oil-repellent powder according to claim 1.