JP3533899B2 - Cosmetics - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic composition which is excellent in water resistance and oil resistance, has good spreadability and spreadability, has a long-lasting cosmetic effect, and has a reduced feeling of use on the skin.

[0002]

2. Description of the Related Art With the diversification of lifestyle, cosmetics are required to have various functions. Among them, water resistance,
There is a demand for cosmetics having excellent oil resistance, good spreadability, and long-lasting cosmetic effect. In particular, in order to improve the durability of the makeup effect of makeup cosmetics, surface treatment was applied to the blended powders to impart water repellency and oil repellency. Was not obtained. By incorporating the film-forming agent, the durability of the cosmetic effect was improved, but the film-forming agent had poor elongation and spread, and the usability was poor. Attempts have been made to blend an organic resin powder or an inorganic spherical powder in order to eliminate this poor spread and spread, but sufficient effects have not been obtained.

[0003]

Therefore, it has been desired to develop a cosmetic composition which is excellent in water resistance and oil resistance, has good spreadability and spreadability, has a long-lasting cosmetic effect, and has a comfortable feeling with less burden on the skin. .

[0004]

Means for Solving the Problems As a result of intensive studies in view of the above circumstances, the present inventors have found that a hollow foamed resin powder having a specific particle diameter and a specific apparent specific gravity and an organic silicone resin can be used. The inventors have found that a cosmetic having excellent water resistance and oil resistance, good spreadability and spreadability, excellent durability of cosmetic effects, and excellent feeling in use with little skin burden can be obtained, and completed the present invention. That is, the present invention provides the following component (a),
(B); (a) Average particle size of 1 to 80 μm, apparent specific gravity of 0.5
Less is hollow foamed resin powder (b) R ¹ ₃ SiO _1/2 units (charcoal R ¹ until 1 to 6 carbon atoms
The ratio of hydrogen halide groups or phenyl groups) to SiO ₂ units is 0.
R ¹ ₃ SiO _1/2 existing in the range of 5/1 to 1.5 / 1
A cosmetic comprising an organic silicone resin composed of a unit and a SiO ₂ unit . Furthermore, it is the cosmetic in which a hollow foamed resin powder component (a) is coated with an inorganic oxide.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.
The component (a) used in the present invention has an average particle size of 1 to
The hollow foamed resin powder having an apparent specific gravity of 0.5 or less at 80 μm is a component necessary for improving the effects of the cosmetic composition of the present invention such as a feeling of use that spreads widely and a finish with less burden on the skin. The hollow foamed resin powder as the component (a) is
It is obtained by heating, expanding or foaming a thermoplastic resin powder containing a volatile foaming agent which is vaporized by heating.

Examples of the resin forming the outer shell of the hollow foamed resin powder include vinyl monomers such as vinyl chloride, vinyl acetate and methyl vinyl ether, acrylic acid, acrylic acid ester, methacrylic acid, methacrylic acid ester and acrylonitrile. , Homopolymers or copolymers of one or more monomers selected from acrylic monomers such as methacrylonitrile, styrene, vinylidene chloride, divinylbenzene, and ethylene glycol dimethacrylate. Preferred is a copolymer comprising two or more monomers selected from acrylic acid, methacrylic acid or esters thereof, acrylonitrile, vinylidene chloride, methacrylonitrile and the like. These polymers may be cross-linked with a cross-linking agent such as divinylbenzene, ethylene glycol dimethacrylate, or triacrylic formal.

The volatile blowing agent is not particularly limited, but for example, ethane, propane, butane, isobutane,
Hydrocarbons such as isobutene, isopentane, neopentane, neohexane, acetylene, hexane and heptane, halogenated hydrocarbons such as trichlorofluoromethane and dichlorodifluoromethane, and low boiling point compounds such as tetraalkylsilane are used.

This hollow foamed resin powder is, for example, Japanese Patent Publication No.
As disclosed in 9-53290, it is produced by a method of heating and foaming a thermoplastic resin powder containing a volatile foaming agent. As commercially available products, for example,
EXPANCEL (made by KEMANORD PLAST AB) and Matsumoto Microsphere F series (made by Matsumoto Yushi-Seiyaku Co., Ltd.) are mentioned.

Further, when the surface of the hollow foamed resin powder is coated with an inorganic powder and blended in the cosmetic of the present invention, the dispersibility of the powder is improved, the spreadability is further improved, and the burden on the skin is reduced. You can get what you don't have. As a method of coating the surface of the hollow foamed resin powder used in the present invention with the inorganic powder, for example,
As disclosed in JP-A-4-9319, there is a method in which a volatile foaming agent-containing thermoplastic resin powder before foaming or during foaming and an inorganic powder are mixed and heated. In addition, other methods include a method of mixing a dispersion obtained by dispersing an inorganic powder in water or an organic solvent such as ethanol with a hollow foaming resin powder and drying, or a dispersion obtained by dispersing the inorganic powder. Examples thereof include a wet treatment method exemplified by a method for spraying and drying the hollow foamed resin powder on the hollow foamed resin powder, and a dry treatment method for forming a composite by physical force such as high impact force.

The inorganic powder for coating the surface of the hollow foamed resin powder used in the present invention is not particularly limited,
Selected according to the desired effect, for example, talc, sericite, mica, calcium carbonate, magnesium carbonate,
Examples thereof include kaolin, boron nitride, titanium oxide, zinc oxide, iron oxide, cerium oxide, zirconium oxide and silica. The particle shape of these inorganic powders is not particularly limited,
For example, it may be granular, spherical, plate-shaped, needle-shaped, or the like, and the particle size is not particularly limited, but it is easier to form a composite.
The average particle size is preferably 0.001 to 20 μm. In order to improve the ultraviolet blocking effect, granular, spherical or acicular fine particle powder of titanium oxide, zinc oxide, cerium oxide, zirconium oxide or the like is used. The ratio of hollow foamed resin powder to inorganic powder is 5 for inorganic powder in composite powder.
It is preferably from 0 to 95% by weight (hereinafter, simply indicated by "%").

The average particle diameter of the hollow foamed resin powder and the inorganic powder-coated hollow foamed resin powder is preferably 1 to 80 μm, more preferably 10 to 60 μm, when measured by a laser diffraction type particle size distribution measuring device. Average particle size is 1
If it is less than μm, the dispersibility in cosmetics is not good, and
When it exceeds 80 μm, it is not preferable because it feels rough on the skin when blended in a cosmetic composition.

In the present invention, the content of the hollow foamed resin powder or the hollow foamed resin powder obtained by coating the surface of the hollow foamed resin powder with the inorganic powder in the cosmetic is preferably 0.01 to 20%, more preferably the blending amount. As for the amount, in hollow expanded resin powder,
0.05 to 5%, in the inorganic powder-coated hollow foamed resin powder,
It is in the range of 0.3 to 15%. If the blending amount is less than 0.01%, the elongation and spread are poor, and a smooth and soft feeling is not obtained, and if the blending amount exceeds 20%, the hollow foamed resin powder has a great influence and becomes powdery. However, it is not preferable because it has poor adhesion to the skin. In addition, this hollow expanded resin powder,
If necessary, one kind or two or more kinds can be used.

The component (b) of the organosilicone resin used in the present invention is an R ¹ ₃ SiO _1/2 unit (R ¹ has 1 to 6 carbon atoms).
The ratio of the hydrocarbyl group or a phenyl group) and SiO ₂ units to exist in the range of ^{0.5 / 1~1.5 / 1, R 1} 3 S
It is an organosilicone resin composed of an iO _1/2 unit and a SiO ₂ unit and is obtained by hydrolyzing a corresponding known silane. As commercially available products, for example, KF7312F, KF7312J, KF7312 obtained by dissolving an organic silicone resin in silicone oil are used.
K, KF9001, KF9002, X-21-524
9, X-21-5250 (above, Shin-Etsu Chemical Co., Ltd.)
Manufactured by Toray Dow Corning Silicone Co., Ltd., TSF4600, DC593, BY11-018
(Toshiba Silicone Co., Ltd.) and the like.

The blending amount of the organic silicone resin of the present invention is
0.1-10% is preferable in the cosmetics of this invention, 0.5-
5% is more preferable. Within this range, the effects of water resistance, oil resistance, and makeup lasting can be more remarkably exhibited without feeling a burden on the skin. Moreover, this organic silicone resin can use 1 type (s) or 2 or more types as needed.

The cosmetics of the present invention may contain, in addition to the above-mentioned essential components, the components usually added to cosmetics within a range that does not impair the effects of the present invention. As the powder, for example, talc, kaolin, sericite, mica, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, cerium oxide, magnesium aluminum silicate, calcium silicate, anhydrous silicic acid, boron nitride, etc. Inorganic extender pigments, inorganic white pigments such as titanium oxide, zinc oxide, aluminum oxide and zirconium oxide, red iron oxide, yellow iron oxide, black iron oxide, gnome, konjou, inorganic coloring pigments such as carbon black, titanium mica, iron oxide mica titanium , Pearlizing agents such as bismuth oxychloride, organic pigments such as tar pigments and natural pigments, nylon powder,
Examples include silk powder, polyethylene powder, organopolysiloxane elastomer powder, silicone resin powder such as polymethylsilsesquioxane powder, crystalline cellulose, and organic powder such as N-acyl lysine. Alternatively, two or more kinds can be selected and used. The particle diameter and particle shape of these powders are not particularly limited. Incidentally, these powders may be used alone or in combination of two or more kinds, a fluorine compound,
It may be surface-treated with a silicone-based oil agent, metal soap, wax, fats and oils, and the like.

Examples of the oil used in the present invention include oils and fats such as olive oil, castor oil, jojoba oil and mink oil, waxes such as beeswax, lanolin and candelilla wax, liquid paraffin, squalane, petrolatum, paraffin wax, Hydrocarbons such as microcrystalline wax, stearic acid, fatty acids such as oleic acid, higher alcohols such as cetanol, stearyl alcohol, behenyl alcohol, isopropyl myristate, glyceryl trioctanoate, esters such as diglyceryl triisostearate, lanolin fatty acid isopropyl, Lanolin derivatives such as lanolin alcohol, dimethylpolysiloxane, decamethylcyclopentasiloxane, silicone oil such as methylphenylpolysiloxane, polyoxyalkylene modification and alkyl modification Silicone oils, perfluoro decane, may be mentioned a fluorine-based oils of perfluoro octane and the like, may be used in combination alone or in combination. Others, organic solvents, plasticizers,
Examples thereof include ultraviolet absorbers, antioxidants, preservatives, surfactants, moisturizers, fragrances, water, alcohols, thickeners and the like.

The dosage form of the cosmetic in the present invention is not particularly limited, but as the dosage form in which the effects of the present invention are more easily exhibited, foundation, white powder, blusher, lipstick,
Examples include makeup cosmetics such as eye shadows, concealers, eye liners, and mascara, and sunscreen cosmetics.

[0018]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. In the examples and comparative examples,% means% by weight.

Examples 1 to 8 and Comparative Examples 1 to 6; Solid Oily Foundation A solid oily foundation having the composition shown in Table 1 below was prepared by a conventional method, and (1) stretch and spread (2) feeling of use (to skin) (3) Water resistance and oil resistance (4) Makeup durability were evaluated. The evaluation results are shown in Table 2.

[0020]

[Table 1]

Note 1: Hollow foamed resin powder of a copolymer of acrylonitrile and methacrylic acid having an average particle diameter of 50 μm and an apparent specific gravity of 0.05. Note 2: 7 parts of titanium oxide having an average particle diameter of 0.3 μm was surface-coated on 3 parts of a hollow foamed resin powder obtained by copolymerizing acrylonitrile and methacrylic acid having an average particle diameter of 30 μm and an apparent specific gravity of 0.03. Hollow foamed resin powder (JP-A-4-
Prepared according to the method disclosed in 9319). Note 3: 3 parts of hollow foamed resin powder of a copolymer of acrylonitrile and methacrylic acid having an average particle size of 30 μm and an apparent specific gravity of 0.03 is coated with 7 parts of calcium carbonate having an average particle size of 4 μm. Foamed resin powder (JP-A-4
Prepared according to the method disclosed in No. 9319). Note 4: Silicone KF-7312J (50% solution of organic silicone resin in decamethylcyclopentasiloxane)
(Shin-Etsu Chemical Co., Ltd.) is used. The blending amount is described as the amount of organic silicone resin. Note 5: Silicone X-21-5250 (50% decamethylcyclopentasiloxane solution of organic silicone resin)
(Shin-Etsu Chemical Co., Ltd.) is used. The blending amount is described as the amount of organic silicone resin.

(Preparation Method) A. Components (6) to (18) are uniformly dissolved. B. Knead A evenly with a roller. C. Add components (1) to (5) to B and stir uniformly. After defoaming C, it was filled in a container to obtain a solid oily foundation.

(Evaluation method) Female 50s in their twenties to thirties
Named as a panel, the solid oil foundations of Examples 1 to 8 and Comparative Examples 1 to 6 were used as samples, and each evaluation item was tested by the following method, and the ratio of the number of people who answered that it was good was evaluated according to the following criteria. The evaluation was performed according to. (1) stretch and spread, (2) feeling of use (feeling of burden on the skin); when applying the sample to the face, (1) ease of makeup, good spreadability, and (2) skin The lack of a sense of burden on (3) Water resistance and oil resistance: A sample is applied to the upper arm bending portion of the panel, and for water resistance, it is exposed to running water for 30 seconds, and for oil resistance, a small amount of squalane is dropped. Then, the coated portion was pressed with a cloth to remove water or squalane, and the state of the coated film was observed and evaluated. (4) Makeup persistence; apply the sample to the face of the panel,
The state of the cosmetic film after 3 hours was evaluated.

(Evaluation criteria) Percentage of people who rated as good 75% or more: ◎ 50% or more and less than 75%: ○ 25% or more and less than 50%: △ Less than 25%: ×

[0025]

[Table 2]

As is clear from the results shown in Table 2, the solid oil foundations of Examples 1 to 8 relating to the products of the present invention were
Compared to Comparative Examples 1 to 6, it was an excellent product that satisfied all the evaluation items, such as spread and spread, feeling of use (feeling of burden on the skin), water resistance, oil resistance, makeup durability.

[0027]   Example 9; Powder foundation   (Component) (%)   1. Hollow foamed resin powder coated with calcium carbonate (Note 3) 1.0   2. Organic silicone resin (Note 5) 1.0   3. Titanium oxide 7.0   4. Talc 20.0   5. Remaining amount of mica   6. Nylon powder 4.0   7. Bengal 0.5   8. Yellow iron oxide 1.7   9. Black iron oxide 0.4 10. Methylparaben 0.1 11. Fragrance suitable amount 12. Squalane 1.0 13. Dimethyl polysiloxane 5.0 14. 2-ethylhexanoate cetyl 1.0 15. 2-Methylhexyl paramethoxycinnamate 1.0

(Manufacturing Method) A. The components (2) and (10) to (15) are uniformly dissolved. B. The components (1) and (3) to (9) are uniformly mixed. After that, A is added and uniformly mixed and pulverized. C. The container was filled with B to obtain a powder foundation. The powder foundation of Example 9 was excellent in spreadability and spreadability, excellent in usability, and also excellent in water resistance, oil resistance, and makeup durability.

Example 10; O / W type liquid foundation (component) (%) Titanium oxide coated hollow expanded resin powder (Note 6) 5.0 2. Organic silicone resin (Note 4) 3.0 3. Stearic acid 1.0. 4. Cetanol 0.5 5. Paraffin 1.0 6. Polyoxyethylene sorbitan monooleate 0.5 (20 EO) 7. Dipentaerythritol fatty acid ester 1.0 8. Squalane 1.0 9.2 Cetyl 2-ethylhexanoate 3.0 10. 2-Ethylhexyl paramethoxycinnamate 3.0 11. Decamethylcyclopentasiloxane 6.0 12. Titanium oxide 3.0 13. Talc 7.0 14. Mica 1.0 15. Red iron oxide 0.5 16. Yellow iron oxide 1.7 17. Black iron oxide 0.4 18. Triethanolamine 0.8 19. Glycerin 10.0 20. Purified water remaining 21. Carboxy vinyl polymer 10.0 22. Ethyl alcohol 5.0 23. Methylparaben 0.1 24. Fragrance suitable amount Note 6: 6 parts of titanium oxide having an average particle diameter of 0.3 μm against 4 parts of hollow foamed resin powder of copolymerization of acrylonitrile and methacrylic acid having an average particle diameter of 37 μm and an apparent specific gravity of 0.03 Hollow foamed resin powder coated
Prepared according to the method disclosed in No. 9319).

(Manufacturing Method) A. Components (3) to (10) are uniformly dissolved. Then, the components (2) and (11) are added and mixed uniformly. B. Components (12) to (20) are uniformly mixed and dispersed. C. Add B to A, emulsify at 75 ° C, and cool (2)
1)-(24) and component (1) are added. D. The container was filled with C to obtain a liquid foundation. The O / W type liquid foundation of Example 10 had excellent elongation and spread, reduced skin burden, and was also excellent in water resistance, oil resistance, and makeup durability.

[0031]   Example 11; O / W type liquid foundation   (Component) (%)   1. Hollow foamed resin powder (Note 1) 0.05   2. Organic silicone resin (Note 5) 5.0   3. Stearic acid 1.0   4. Cetanol 0.5   5. Paraffin 2.0   6. Polyoxyethylene sorbitan monooleate 0.5       (20 EO)   7. Dipentaerythritol fatty acid ester 1.0   8. Squalane 1.0   9.2 Cetyl 2-ethylhexanoate 3.0 10. 2-Methylhexyl paramethoxycinnamate 3.0 11. Decamethylcyclopentasiloxane 6.0 12. Titanium oxide 3.0 13. Talc 7.0 14. Mica 1.0 15. Bengal 0.5 16. Yellow iron oxide 1.7 17. Black iron oxide 0.4 18. Triethanolamine 0.8 19. Glycerin 10.0 20. Purified water Remaining amount 21. Carboxy vinyl polymer 10.0 22. Ethyl alcohol 5.0 23. Methylparaben 0.1 24. Fragrance suitable amount

(Manufacturing Method) A. Components (3) to (10) are uniformly dissolved. Then, the components (2) and (11) are added and mixed uniformly. B. Components (12) to (20) are uniformly mixed and dispersed. C. Add B to A, emulsify at 75 ° C, and cool (2)
1)-(24) and component (1) are added. D. The container was filled with C to obtain a liquid foundation. The O / W type liquid foundation of Example 11 had excellent elongation and spread, reduced skin burden, and was also excellent in water resistance, oil resistance and makeup durability.

Example 12: W / O type sunscreen cosmetic (component) (%) Hollow foamed resin powder coated with fine particles of titanium oxide (Note 7) 3.0 2. Organic silicone resin (Note 4) 3.0 3. Particulate titanium oxide 7.0 4. Fine particle zinc oxide 8.0 5. Silicic anhydride 3.0 6. Propylene glycol dicaprate 4.0 7. 2-Ethylhexyl paramethoxycinnamate 5.0 8.4-tert-butyl 4'-methoxybenzoyl 0.1 butane 9. Polyoxyethylene / methylpolysiloxane 3.0 copolymer 10. Sorbitan sesquioleate 0.3 11. Decamethylcyclopentahexane 15.0 12. Ethanol 5.0 13. Methylparaben 0.1 14. Perfume appropriate amount 15. Purified water Remainder Note 7: 3 parts of hollow foamed resin powder of acrylonitrile and methacrylic acid copolymer having an average particle diameter of 30 μm and an apparent specific gravity of 0.03 were mixed with particulate titanium oxide having an average particle diameter of 0.02 μm. 7 parts surface-coated hollow foamed resin powder (prepared according to the method disclosed in JP-A-4-9319).

(Manufacturing Method) A. The components (3) to (10) are uniformly kneaded. B. Ingredients (2) and (11) are added to A. C. The components (12) to (15) are added to B and emulsified. D. Ingredient (1) is added to C and mixed. E. The container was filled with C to obtain a W / O type sunscreen cosmetic. The W / O type sunscreen cosmetic of Example 12 has a reduced weight of the fine particle powder, a strong adhesive force, etc., is light in skin feel, spreads well, and has water resistance. It was also excellent in oil resistance and makeup durability.

Example 13: Multilayer base cosmetic (component) (%) 1. Talc-coated hollow foamed resin powder (Note 8) 10.0. 2. Decamethylcyclopentahexane 40.0 3. Organic silicone resin (Note 5) 5.0 4. Purified water remaining 5. Ethyl alcohol 5.0 6. Methylparaben 0.1 7. Perfume proper amount 8. Nylon powder 1.0 9. Blue No. 205 Proper amount Note 8: 7 parts of talc having an average particle size of 3.8 μm with respect to 3 parts of a hollow foamed resin powder of an acrylonitrile / methacrylic acid copolymer having an average particle size of 30 μm and an apparent specific gravity of 0.03 Hollow foamed resin powder with surface coating (Japanese Patent Laid-Open No. 4-93)
(Prepared according to the method disclosed in No. 19)

(Manufacturing Method) A. Ingredients (3) to (9) are mixed uniformly. B. Add components (1) and (2) to A. C. The container was filled with B to obtain a multi-layered base cosmetic. The multi-layered base cosmetic composition of Example 13 was excellent in elongation and spread, was able to obtain a uniform makeup film having excellent water resistance and oil resistance, and was also excellent in makeup durability. In addition, this multi-layered base cosmetic is a four-layer lotion in which the hollow foamed resin powder is the uppermost layer, the oil layer, the water layer, and the powder are the lowermost layer in this order from the top. It was

[0037]

Industrial Applicability The cosmetic of the present invention containing a hollow foamed resin powder having a specific particle diameter and an apparent specific gravity and an organic silicone resin has excellent water resistance and oil resistance, spreads well, and has a cosmetic effect. It is very useful as a cosmetic composition, which is excellent in durability, has less burden on the skin, and is excellent in usability.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-8-99833 (JP, A) JP-A-8-325120 (JP, A) JP-A-4-9319 (JP, A) JP-A-3- 47110 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (2)

(57) [Claims] 1. The following components (a) and (b): (a) The average particle size is 1 to 80 μm, and the apparent specific gravity is 0.5.
Less is hollow foamed resin powder (b) R ¹ ₃ SiO _1/2 units (charcoal R ¹ until 1 to 6 carbon atoms
The ratio of hydrogen halide groups or phenyl groups) to SiO ₂ units is 0.
R ¹ ₃ SiO _1/2 existing in the range of 5/1 to 1.5 / 1
A cosmetic comprising an organic silicone resin comprising a unit and a SiO ₂ unit . 2. The cosmetic according to claim 1, wherein the hollow foamed resin powder of component (a) is coated with an inorganic oxide.