JPH07133210A - Emulsified cosmetic - Google Patents

Abstract

PURPOSE:To obtain an emulsified cosmetic having excellent feeling and stability by emulsifying a liquid perfluorinated organic compound and a pigment subjected to hydrophobic treatment together with a polyvalent metal salt of a specific fatty acid. CONSTITUTION:This emulsified cosmetic is produced by combining a liquid perfluorinated organic compound (e.g. perfluorodecalin) and a hydrophobic- treated pigment with a 10-22C saturated or unsaturated fatty acid polyvalent metal salt (e.g. aluminum monostearate). The hydrophobilized pigment includes pigment subjected to hydrophobic treatment of the surface as well as ordinary hydrophobic pigment. The mother pigment to be treated is e.g. titanium oxide, iron oxide, nylon powder and carbon black. These pigments are surface-treated with metallic soap, silicone, etc. The cosmetic contains the liquid perfluorinated organic compound and the hydrophobic pigment in a state compounded extremely stably in the emulsion cosmetic without deteriorating the function of the compound, etc., and gives excellent feeling to the skin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emulsified cosmetic composition containing a liquid perfluoroorganic compound and a hydrophobized pigment, and having excellent stability and a good feeling in use.

[0002]

2. Description of the Related Art Conventionally, powders have been added to cosmetics to impart functions such as coloring the skin and hair, hiding spots and freckles, and protecting the skin from ultraviolet rays. In particular, emulsified cosmetics have a good feel and multifunctional properties, and therefore powders have been mixed with them to be applied as various cosmetics, such as emulsion type foundations, UV-protective emulsions and creams.

On the other hand, in recent years, hydrophobic pigments and hydrophobized pigments have been used for the purpose of improving the adhesion of powder to the skin and imparting water resistance and sweat resistance. However, in order to stably mix these hydrophobic pigments in an emulsified cosmetic composition, it is necessary to increase the viscosity of the oil phase that is a dispersion medium or increase the amount of emulsifier or dispersant used, and the feel is good. In addition, it is difficult to obtain a powder that stably holds the powder. In addition, when the hydrophobized pigment is one treated with a fluorine compound, it is more difficult.

[0004] Recently, it has been applied to cosmetics to impart sebum resistance and oil resistance, and to the skin and hair for moisture retention, lubricity,
For the purpose of imparting a protective function, a liquid perfluoroorganic compound (JP-A-61-234928, JP-A-63-63928).
No. 107911) is used. However, the perfluoro organic compound is not compatible with other additives usually used in cosmetics, and it has been difficult to obtain a stable emulsified cosmetic using the same.

[0005]

Therefore, it has been desired to obtain a stable emulsified cosmetic composition which is excellent in the feeling of use and stable without impairing the performance of the liquid perfluoroorganic compound and the hydrophobized pigment.

[0006]

Under such circumstances, the present inventors have conducted diligent research and as a result, have found that liquid perfluoroorganic compounds and hydrophobized pigments of saturated or unsaturated fatty acids having 10 to 22 carbon atoms are used. It has been found that an emulsified cosmetic composition excellent in usability and stability can be obtained by emulsifying it with a polyvalent metal salt, and completed the present invention.

That is, the present invention comprises the following components (a)-
(C), (a) Liquid perfluoroorganic compound (b) Polyvalent metal salt of saturated or unsaturated fatty acid having 10 to 22 carbon atoms (c) Hydrophobized pigment, emulsified cosmetic characterized by containing Is provided.

The liquid perfluoroorganic compound of component (a) used in the present invention is not particularly limited as long as it is a liquid at room temperature, and for example, perfluorodecalin, perfluoroadamantane, perfluorobutyltetrahydrofuran. , Perfluorooctane, perfluorononane, perfluoropentane, perfluorodecane, perfluorododecane, and perfluoropolyether represented by the general formula (1).

[0009]

[Chemical 1]

[Wherein R ¹ , R ³ , R ⁴ and R ⁵ may be the same or different and each represents a fluorine atom, a perfluoroalkyl group or a perfluoroalkyloxy group, and R ² represents a fluorine atom or a perfluoroalkyl group. Alkyl group, p, q and r have a molecular weight of 500 to 100,000
The number is 0 or more. However, p = q = r = 0 does not hold. ]

The perfluoro groups shown in parentheses here do not have to be arranged in this order, and random polymerization or block polymerization may be used. Especially viscosity 5
A liquid form of up to 5,000 cSt is preferable, for example, the following general formula (2)

[0012]

[Chemical 2]

[Wherein x and y have a molecular weight of 500 to 1]
The number is 0,000 and x / y is 0.2 to 2. ]

FOMBLIN HC-04 represented by
(Average molecular weight 1,500), HC-25 (3,20)
0) and the HC-R (the 6,600) (manufactured by Montefurosu Co.) _{and, F- (C 3 F 6 O} ) in _Z -C ₂ F ₅ (wherein,
z represents a number of 4 to 500. ) Demnam S represented by
-20 (weight average molecular weight 2,500), the same S-65 (the same 4,500), the same S-100 (the same 5,600) and the same S-200 (the same 8,400) (above, manufactured by Daikin Industries, Ltd. ) Etc. can be used as commercial products.

These perfluoro organic compounds can be used alone or in combination of two or more. This perfluoroorganic compound, in addition to its original function of imparting sebum resistance and oil resistance, exhibits the effect of making the hydrophobized pigment a stable emulsion together with the polyvalent metal salt of the component (b) fatty acid. In order to exhibit both of these effects, it is preferable to add 1 to 40% by weight (hereinafter, simply indicated by%), particularly 5 to 20% in the total composition.

The polyvalent metal salt of fatty acid as the component (b) is preferably a fatty acid having 12 to 18 carbon atoms, and examples of such salts include calcium, magnesium, zinc, aluminum and the like. Of these, aluminum salts are particularly preferable. Therefore, preferable examples of the fatty acid polyvalent metal salt include aluminum monostearate, aluminum distearate, aluminum monooleate, aluminum monopalmitate, and aluminum monolaurate.

From the viewpoint of emulsion stability and the feeling of use of the resulting emulsion, it is preferable that these fatty acid polyvalent metal salts be added in an amount of 0.05 to 10% in the total composition.

The hydrophobized pigment as the component (c) includes, in addition to ordinary hydrophobic pigments, pigments whose surface is hydrophobized. As the surface treatment method, for example, oil or fat is adsorbed on the pigment surface, or a functional group such as a hydroxyl group is used to cause esterification or etherification to make the pigment lipophilic, a zinc salt or magnesium of a fatty acid. A metal soap treatment method using a salt, a silicone treatment method using dimethylpolysiloxane or methylhydrogenpolysiloxane, a treatment method with the following fluorine compound having a perfluoroalkyl group (here, the fluorine compound is, for example,

[0019]

[Chemical 3]

Polyfluoroalkyl phosphoric acid represented by (US Pat. No. 3,632,744), fluoroalkyldi (oxyethyl) amine phosphoric acid ester (Japanese Patent Laid-Open No. 62-
No. 250074), a resin having a perfluoroalkyl group (JP-A-55-167209), a tetrafluoroethylene resin, a perfluoroalcohol, a perfluoroepoxy compound, a sulfoamide type fluorophosphoric acid, a perfluorosulfate, Examples thereof include fluorocarboxylic acid salts and perfluoroalkylsilanes (JP-A-2-218603). ) And the like.

The mother pigment to be treated is not particularly limited as long as it is substantially insoluble in water and oil, and examples thereof include titanium oxide, iron oxide, ultramarine blue, zinc white, magnesium oxide,
Inorganic pigments such as zirconium oxide, mica, sericite, talc, silica, kaolin, chromium hydroxide; organic powders and organic pigments such as nylon powder, carbon black, polymethylmethacrylate, styrene-divinylbenzene copolymer, polyethylene powder And so on.

These hydrophobized pigments may be used either individually or in combination of two or more, and may have an amount of 0.
It is preferable to add 0.1 to 70%, particularly 0.1 to 40%, because a stable product can be obtained.

In addition to the above-mentioned essential components, the emulsified cosmetic composition of the present invention may contain, if necessary, components that are commonly used in conventional cosmetic compositions. For example, solid / semi-solid oil components such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids, higher alcohols; olive oil, jojoba oil, castor oil, squalane,
Liquid oils such as liquid paraffin, ester oil, diglyceride, triglyceride, silicone oil, etc .; water-soluble and oil-soluble polymers; nonionic surfactants, anionic surfactants, cationic surfactants, polyether modified silicones, etc. Surfactants; gelling agents such as dextrin fatty acid esters; coloring agents such as inorganic and organic pigments and organic dyes; preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, UV absorbers, moisturizers Agents, blood circulation promoters, cooling sensation agents, antiperspirants, bactericides, skin activating agents and the like can be added within the qualitative and quantitative ranges that do not impair the purpose and effects of the present invention.

The emulsified cosmetics to which the present invention is applied include
Examples thereof include skin care creams, emulsions such as UV protection creams, and liquid type foundations. These are prepared from the above components by a conventional method.

[0025]

The effects and effects of the invention The cosmetic of the present invention is extremely stably incorporated in the emulsified cosmetic without impairing the functions of the liquid perfluoroorganic compound and the hydrophobized pigment, and also has a feeling of use. It has the excellent property of being good.

[0026]

The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Production Example 1 150 g of pigment was placed in a round bottom flask (or kneader), and (C ₈ F ₁₇ CH ₂ CH ₂ O) ₂ P (O) OH 7.
5 g and 1,500 g of isopropyl alcohol that had been dissolved by heating (50 ° C.) were added, and mixed at 60 ° C. for 4 hours. After that, isopropyl alcohol was distilled off under reduced pressure at 40 to 50 ° C., and dried to obtain the desired hydrophobically treated pigment 15
5 g was obtained.

Example 1 An emulsion having the composition shown in Table 1 was produced and stability was evaluated.
The results are also shown in Table 1. (Production method) The aqueous phase components shown in Table 1 were mixed by heating and kept at 70 ° C. Similarly, the oil phase component was heated and dissolved at 70 ° C., and fluorinated compound-treated talc was added and dispersed. The above water phase component was added to this oil phase / powder component and emulsified with an emulsifying machine. The emulsion was cooled to a final temperature of 25 ° C. with a heat exchanger to obtain the desired emulsion. (Evaluation method) After storage at 40 ° C for 7 days, the appearance was evaluated.

[0029]

[Table 1]

As is clear from the results of Table 1, the stability of the product of the present invention in which the liquid perfluoroorganic compound, the metal salt of fatty acid and the hydrophobized pigment were used in combination was better than that in the case where they were not used in combination. .

Example 2 Emulsion foundations having the compositions shown in Table 2 were produced and evaluated for their makeup retention and stability. The results are also shown in Table 2.

(Production Method) Components 1 to 7 are heated and dissolved at 70 ° C., then Component 14 is added and dispersed with a disper. Ingredient 1
What melt | dissolved 0-13 at 70 degreeC is added to the said mixture, and it emulsifies with an emulsifier. This was cooled to 40 ° C. with a heat exchanger, components 8 and 9 were added, and further cooled to 25 ° C. to obtain the target milky liquid foundation. (Evaluation method) Make-up lasting: Sensory evaluation was performed by 10 professional panelists, and evaluation was performed according to the following criteria. ○: 8 or more are good. △ …… 4 to 7 people are good. ×: Good for less than 4 people. Stability: Evaluation was carried out in the same manner as in Example 1.

[0033]

[Table 2]

As is clear from Table 2, the emulsion base of the present invention was excellent in makeup retention and stable.

Example 3 Creamy foundation In the same manner as in Example 2, a creamy foundation having the following composition was obtained.

[0036]

[Table 3] Composition (%) 1. Sorbitan sesquioleate 3.0 2. Aluminum dioleate 0.2 3. Liquid paraffin 15.0 4. Squalane 10.0 5. Perfluoropolyether (Demnum S-20, manufactured by Daikin Industries, Ltd.) 10.0 6. Octyl methoxycinnamate 2.0 7. Fragrance 0.1 8. Magnesium sulfate 0.7 9. Methyl paraoxybenzoate 0.1 10. Glycerin 5.0 11.1, 3-Butylene glycol 2.0 12. Purified water balance 13. Silicone-treated pigment (commercially available product obtained by treating the following pigment with polymethylhydrogen siloxane) Titanium oxide 7.0 Sericite 6.0 Red iron oxide 0.5 Yellow iron oxide 1.3 Black iron oxide 0.2

Example 4 Sunscreen Emulsion A sunscreen emulsion having the following composition was obtained in the same manner as in Example 2.

[0038]

[Table 4] Composition (%) 1. Silicone treated zinc oxide (commercially available product treated with polymethylhydrogen siloxane) 8.0 2. Dimethylpolysiloxane polyoxyalkylene copolymer (KF-6015, manufactured by Shin-Etsu Chemical Co., Ltd.) 1.5 3. α-monooleyl glyceryl ether 1.5 4. Dimethylpolysiloxane (KF-96A, 6cs, manufactured by Shin-Etsu Chemical Co., Ltd.) 10.0 5. Perfluoropolyether (FOMBLIN HC-04, manufactured by Ausimont) 8.0 6. Octyl methoxycinnamate 2.0 7. Aluminum monostearate 0.3 8. Decamethylcyclopentasiloxane 15.0 9. Oxybenzone 0.5 10. Potassium chloride 0.6 11. Glycerin 2.0 12.1, 3-butylene glycol 2.0 13. Methyl paraoxybenzoate 0.1 14. Purified water balance

Example 5 Emulsion In the same manner as in Example 2, an emulsion having the following composition was obtained.

[0040]

[Table 5] Composition (%) 1. Silicone treated talc (commercial product treated with polymethylhydrogen siloxane) 8.0 2. Dimethylpolysiloxane polyoxyalkylene copolymer (SH3772C, Toray Dow Corning Silicone Co., Ltd.) 1.0 3. 3. Dimethylpolysiloxane polyoxyalkylene copolymer (FZ-2110C, manufactured by Nippon Unica Co., Ltd.) 1.0 4. α-monooleyl glyceryl ether 1.0 5. Dimethylpolysiloxane (KF-96A, 6cs, manufactured by Shin-Etsu Chemical Co., Ltd.) 5.0 6. Perfluoropolyether (FOMBLIN HC-04, manufactured by Ausimont Co., Ltd.) 7.0 7. Aluminum distearate 0.2 8. Octamethylcyclotetrasiloxane 15.0 9. Magnesium sulfate 0.7 10. Glycerin 5.0 11.1, 3-Butylene glycol 2.0 12. Methyl paraoxybenzoate 0.1 13. Purified water balance

The products of the present invention prepared in Examples 3 to 5 were all emulsion cosmetics having excellent stability and feeling of use.

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location // A61K 7/42

Claims (1)

[Claims] 1. The following components (a) to (c), (a) a liquid perfluoroorganic compound (b) a polyvalent metal salt of a saturated or unsaturated fatty acid having 10 to 22 carbon atoms (c) a hydrophobizing treatment An emulsified cosmetic containing a pigment.