JPH09328409A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic excellent in transcription prevention and persistent cosmetic effect without adverse effect on the skin feeling by formulating a specific silicone elastomer, an adhesive resin and a solid oil. SOLUTION: Crushed silicone elastomer, an adhesive resin and a solid oil, in addition, a powder are formulated to produce this cosmetic. The crushed silicone elastomer is prepared by wet-crushing a silicone elastomer in a solvent or an oil. The adhesive resin is a trimethyl-siloxysilicic acid-acryl-silicone graft copolymer. These silicone elastomer and adhesive resin are preferably swollen with or dissolved in a volatile silicone or a silicone oil. As a solid oil, are cited cacao fat, lauryl alcohol or the like. The powder is, for example, a nylon powder, silica or the like. The amounts of the crushed silicone elastomer, the adhesive resin, the solid component and the powder are preferably (1-40):40:(0.1-40):(0.1-50) pts.wt. per 100 pts.wt. of the cosmetic, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic having excellent transfer-preventing effect, long-lasting cosmetic effect, and touch. More specifically, the pulverized silicone elastomer,
The present invention also relates to a cosmetic having a transfer prevention effect and a long-lasting cosmetic effect without sacrificing the feel by blending an adhesive resin and a powder.

[0002]

2. Description of the Related Art The inventors of the present invention have disclosed Japanese Patent Application No. 7-194201, Japanese Patent Application No. 7-207469, and Japanese Patent Application No. 7-20.
In 7470 gazette, it was found that a cosmetic containing a pulverized product of silicon-containing resin containing a silicone elastomer had excellent durability of cosmetic effect and proposed. Further, the present inventors have found and proposed in Japanese Patent Application No. 6-292207 and Japanese Patent Application No. 6-2111754 that make-up cosmetics using fine particle powder have an excellent effect of preventing transfer.

[0003]

A cosmetic using a pulverized product of a silicone elastomer has functions such as excellent feel and wrinkle-concealing effect. It has been found that when a composite film of silicon-containing resin powder and an organic silicon-based resin compound is formed, a transfer prevention effect can be further obtained. However, in order to form a composite film, a large amount of an oil agent or a solvent is required, and therefore its formulation is
It was generally in solution or cream form.

On the other hand, in the present market, there are many products which are emulsified type, which are filled in a gold plate and housed in a compact type container, and form a part of the market. According to consumer surveys, these dosage forms are recognized as a modification of the powder dosage form, and are evaluated for their superiority in simplicity as compared with conventional emulsion-type dosage forms.

Therefore, if there is a cosmetic that has a transfer-preventing function and is a drug type that can be filled in a gold plate housed in a compact container or the like, it is possible to propose a product having simplicity and high functionality. Becomes

[0006]

Means for Solving the Problems The inventors of the present invention have made diligent studies in view of the above-mentioned circumstances, and as a result, by blending a pulverized silicone elastomer, an adhesive resin, and a solid oil, a compact container or the like can be obtained. It has been found that a cosmetic which can be filled in a gold plate to be stored in, and is excellent in transfer prevention effect, durability of makeup effect, and feel is obtained. That is, the present invention is a cosmetic characterized in that a pulverized silicone elastomer, an adhesive resin, and a solid oil are blended, and optionally a powder is further blended.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The silicone elastomer used in the present invention is a silicone-based resin powder having a primary particle diameter in the range of 0.1 to 200 μm as observed by an electron microscope, and is disclosed in JP-A-2-243612. Publication and Japanese Patent Laid-Open No. 8
Examples are those described in Japanese Patent No. 12524. As the silicone elastomer used in the present invention, the Trefil E series manufactured by Toray Dow Corning Silicone Co., Ltd. is particularly preferable.

The pulverized silicone elastomer referred to in the present invention refers to the above-mentioned silicone elastomer wet-pulverized using a solvent or an oil agent.
In that step, the silicone elastomer may be wet pulverized with a solvent or an oil agent in advance, or may be pulverized together with other components at the time of manufacturing the product, as long as the pulverized silicone elastomer is present in the product. I do not care. Regarding the degree of wet pulverization, it is sufficient that the pulverized product of the silicone elastomer is pulverized so as to pass through a mesh having an opening of 0.1 mm, and the average primary particle size may or may not be changed by the pulverization. It doesn't matter.

Examples of the crushing device include a sand mill, a bead mill, a wet medium type crusher such as Micros (manufactured by Nara Machinery Co., Ltd.), a disper, an Ong mill (manufactured by Hosokawa Micron), a roll mill and the like. As a solvent for wet pulverization, an oil agent or a solvent conventionally used in cosmetics can be used. Of these, silicone oils, particularly cyclic tetramer to hexamer volatile silicones and volatile linear silicones are preferred. Further, the pulverized solution obtained by the pulverization treatment may be used as it is, or may be used as a pulverized powder by removing the solvent under reduced pressure or heating. When removing the solvent, a solvent such as toluene or hexane can be used as the solvent. Examples of the pulverizing medium in the case of using the wet medium type pulverizer include ceramics such as zirconia, glass, stainless steel, and polyacetal resin, but any of them may be used.

The adhesive resin used in the present invention is a compound which is solid or pasty at 25 ° C. in the absence of a solvent, is a water-insoluble or sparingly water-soluble resin, and has a small amount of water at room temperature. The resin which shows adhesiveness below is mentioned. Specifically, for example, a silicone resin compound such as trimethylsiloxysilicic acid, a fluorinated silicone resin, an acrylic silicone graft copolymer, a silicone resin modified with an organic ultraviolet absorber, a trimethylsilylated organic sticky agent, an acrylic resin , Methacrylic resin, polyvinylpyrrolidone resin, styrene resin,
Conventionally known adhesive resin compounds such as vinyl acetate-based resins and composite resins thereof can be used, but among them, various modified silicone resin compounds, silane-treated pressure sensitive adhesives and the like are preferable because of excellent compatibility with silicone elastomers,
More preferably, trimethylsiloxysilicic acid, an acrylic silicone graft copolymer, and a fluorinated silicone resin (in particular, a silicone resin compound having a fluorinated alkyl chain described in Japanese Patent Application No. 7-192530) is excellent in lasting property. That is preferable).

These silicone elastomers and adhesive resins are used as oil agents and solvents conventionally used in cosmetics such as volatile silicone, light liquid isoparaffin, alcohol, low polymerization degree perfluoropolyether and fluorocarbon. Volatile solvent, squalane,
It is preferable to use an oil agent such as ester oil or silicone oil after swelling in the case of a silicone elastomer and dissolving or swelling in the case of an adhesive resin. Of these, silicone-based solvents and oils having excellent compatibility with silicone elastomers are preferable.

Examples of the solid oil used in the present invention include oily raw materials which are solid or pasty at 25 ° C. and which are conventionally used in cosmetics. For example, cocoa butter, mokuro, palm oil, palm kernel oil, egg yolk oil, carnauba wax,
Candelilla wax, beeswax, salasi beeswax, lanolin,
Lanolin derivatives, montan wax, petrolatum, paraffin, microcrystalline wax, ceresin, polyethylene, or higher fatty acids such as oleic acid, stearic acid, palmitic acid, myristic acid, lauric acid, and undecylenic acid, lauryl alcohol, cetyl alcohol, stearyl alcohol, lanolin Higher alcohols such as alcohol, myristyl myristate, cetyl lactate, ethylene glycol monostearate, propylene glycol monostearate, esters such as cetyl palmitate, silicones such as polyether modified silicone, alkyl modified silicone, alkoxy modified silicone, etc. Is mentioned.

The powder used in the present invention is red 104
No., Red No. 201, Yellow No. 4, Blue No. 1, Black No. 401, etc., Yellow No. 4 Al lake, Yellow No. 203 Ba lake, etc. lake pigments, nylon powder, silk powder, urethane powder, Teflon powder, cellulose Powders, polymers such as polymethylsilsesquioxane,
Yellow iron oxide, red iron oxide, black iron oxide, chromium oxide, ultramarine blue,
Colored pigments such as navy blue, white pigments such as zinc oxide, titanium oxide and cerium oxide, body pigments such as talc, mica, sericite and kaolin, pearl pigments such as titanium mica, barium sulfate, calcium carbonate, magnesium carbonate and aluminum silicate. , Metal salts such as magnesium silicate, inorganic powders such as silica and alumina, bentonite, smectite and the like. The shape and size of these powders are not particularly limited, but as an average primary particle diameter by electron microscope observation,
It is particularly preferable to add a fine particle powder in the range of 100 nm. If you use powder in this particle size range,
Easy to exhibit the transfer prevention function.

The shape of the fine particle powder includes, but is not particularly limited to, a spherical shape, a plate shape, an irregular shape, a needle shape, a rod shape, and a spindle shape. As the material of the fine particle powder, titanium dioxide, zinc oxide, aluminum oxide, zirconium oxide, silicic acid anhydride, barium sulfate, calcium carbonate, cerium oxide, yellow iron oxide, black iron oxide, red iron oxide, low order titanium oxide, carbon black, Examples thereof include gold and silver, but titanium dioxide and zinc oxide having a UV protection function are preferable.

The powder used in the present invention is a conventionally known surface treatment such as fluorine compound treatment, silicone treatment, pendant treatment, alkylsilane treatment, silane coupling agent treatment, titanium coupling agent treatment, oil agent treatment, N-acyl treatment. Lysine chloride treatment, polyacrylic acid treatment, metal soap treatment,
It may or may not be surface-treated in advance by amino acid treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, etc., but untreated or hydrophilic surface treatment is preferred.

The blended amount of the pulverized silicone elastomer, adhesive resin, solid oil, and powder used in the cosmetic of the present invention is 1 to 100 parts by weight of the cosmetic. 40: 1-40: 0.1-40:
It is preferably in the range of 0.1 to 50. In addition, the weight ratio of the adhesive resin is 0.3 to the total weight of the pulverized silicone elastomer and the adhesive resin.
It is preferably in the range of 0.7. Within this range, the transfer-preventing function and the good feel are best balanced.

In the cosmetic of the present invention, in addition to the above components, oils, fluorine compounds, resins, surfactants, adhesives, preservatives, fragrances, ultraviolet absorbers, etc. which are usually used in cosmetics.
Ingredients such as moisturizers, physiologically active ingredients, salts, solvents, antioxidants, chelating agents, neutralizing agents and pH adjusters can be added at the same time.

Examples of the oil agents are liquid oil agents other than the solid oil used in the present invention, such as glycerin, sorbitol,
Polyhydric alcohols such as ethylene glycol, propylene glycol, polyethylene glycol, hexyl laurate, decyl oleate, isopropyl myristate, hexyldecyl dimethyloctanoate, esters such as diethyl phthalate, hydrocarbons such as liquid paraffin and squalane, ethylene Examples include α-olefins and cooligomers.

Further, examples of the oil agent of another form include solid oil used in the present invention, liquid oil agent other than the adhesive resin, or non-adhesive resin such as dimethylpolysiloxane, methylhydrogenpolysiloxane, and methyl. Phenylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl / polyoxyalkylene co-modified organopolysiloxane, alkyl-modified organopolysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, silicone Examples thereof include gel, silicone compounds such as silicone RTV rubber, and fluorine compounds such as perfluoropolyether, fluorinated pitch, fluorocarbon and fluoroalcohol.

As the surface active agent, for example, anionic surface active agent, cationic surface active agent, nonionic surface active agent, betaine surface active agent can be used.

Examples of the organic ultraviolet absorber include 2-ethylhexyl paramethoxycinnamate, 2-ethylhexyl paradimethylaminobenzoate, and 2-hydroxy-4.
-Methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfuric acid, 2,2'-dihydroxy-4-methoxybenzophenone, p-methoxyhydrocinnamic acid diethanolamine salt, para-aminobenzoic acid (hereinafter abbreviated as PABA), Ethyldihydroxypropyl PABA, glyceryl PABA, homomenthyl salicylate, methyl-O-aminobenzoate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, octyldimethyl PABA, octyl salicylate,
2-Phenyl-benzimidazole-5-sulfate, triethanolamine salicylate, 3- (4-methylbenzylidene) camphor, 2,4-dihydroxybenzophenine, 2,2 ', 4,4'-tetrahydroxybenzophenone, 2 , 2'-Dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-N-octoxybenzophenone, 4-isopropyldibenzoylmethane, butylmethoxydibenzoylmethane, 4- (3,4
-Dimethoxyphenylmethylene) -2,5-dioxo-
2-ethylhexyl 1-imidazolidine propionate and the like can be mentioned.

Examples of the solvent include cyclic silicone, ethanol, light liquid isoparaffin, lower alcohol, ethers, LPG, fluorocarbon, N-methylpyrrolidone, fluoroalcohol, volatile linear silicone, purified water and the like.

The cosmetics of the present invention include foundations, face colors, lipsticks, eye shadows, eye liners, cheeks, concealers, lip coats, sunscreens, foundation coats, emulsions, essences, creams and the like.

[0024]

The present invention will be described in detail below with reference to examples and comparative examples.

The evaluation test methods for various properties of the cosmetics used in Examples and Comparative Examples are shown below.

(1) Transfer Prevention Test After washing the face, the test product was applied using only the lotion, and after 5 minutes, the forehead was rubbed with a tissue paper to show the transfer property of the test product to the tissue paper. It was evaluated according to the standard.

[0027]

[Table 1]

(2) Sensory characteristic test The feel during application and the finish after application were examined by 10 professional inspectors, and the results are shown in Table 2 according to the number of panelists who answered "excellent feel" and "natural finish". Evaluation was made according to the criteria shown in.

(3) Persistence of cosmetic effect (lasting effect) The cosmetic effect was observed 2 hours after the evaluation of the above cosmetics. The number of panelists who answered "excellent cosmetic effect lasting" was evaluated according to the criteria shown in Table 2.

[0030]

[Table 2]

Example 1 (Foundation) (1) Preparation of Grinding Solution for Silicone Elastomer A trefil E-505C (hereinafter referred to as trefill) manufactured by Toray Dow Corning Silicone Co., Ltd., which is a kind of silicone elastomer, was used to prepare trefil 12.5. 75 parts by weight of decamethylcyclopentasiloxane (hereinafter referred to as D5), which is a cyclic pentamer silicone, is mixed with parts by weight,
After crushing at 900 rpm for 5 minutes using Micros manufactured by Nara Opportunity Mfg. Co., 12.5 parts by weight of trefil was further added, and crushing was performed at 900 rpm for 10 minutes. The obtained solution is passed through a mesh having an opening of 0.1 mm,
This was a crushed solution.

(2) Preparation of adhesive resin solution: 45% by weight of a silicone resin compound having a fluorinated alkyl chain (a compound of Production Example 1 described in Japanese Patent Application No. 7-192530), which is a kind of adhesive resin solution. Part was dissolved in 55 parts by weight of cyclic silicone (D5) using a paint shaker to obtain a solution.

A foundation was prepared according to the formulation shown in Table 3 by using this pulverized solution and the adhesive resin solution. In addition, the following compounding amount% is shown by weight%.

[0034]

[Table 3]

After the component A was mixed with a mixer, it was pulverized using an atomizer. Next, the component B was roughly mixed and then heated and dissolved with stirring. The components A and B were mixed using an extruder and directly heated and filled in a metal plate using a mold. The gold plate was housed in a compact container to complete the product.

Comparative Example 1 The same as Example 1 except that the adhesive resin solution of Example 1 was replaced with a solution of 45 parts by weight of dimethylpolysiloxane (1000 cSt) dissolved in 55 parts by weight of cyclic silicone (D5). A product was obtained in the same manner.

Comparative Example 2 Instead of the silicone elastomer grinding solution of Example 1, a silicone elastomer (Trefil E-505) was used.
Using C) and without kneading with an extruder, a product was obtained according to the recipe in Table 4 (example using unmilled silicone elastomer).

[0038]

[Table 4]

After the component A was mixed with a mixer, it was pulverized using an atomizer. Next, after adding the component B and heating and mixing the component C under stirring, the components A, B, and C are mixed by using a mixer, and a gold plate is filled with a spatula, and the gold plate is put into a compact container. The product was stored.

Table 5 shows the results of the above-mentioned evaluation test performed on the products of Example 1 and Comparative Examples 1 and 2.

[0041]

[Table 5]

From the results of Table 5, Example 1 is Comparative Examples 1-2.
It can be seen that the anti-transfer effect, the organoleptic properties, and the durability of the cosmetic effect are all superior to those of.

[0043]

From the above, it is clear that the present invention provides a cosmetic having excellent transfer-preventing effect, organoleptic properties, and durability of cosmetic effect.

Claims (2)

[Claims] 1. A cosmetic comprising a pulverized silicone elastomer, an adhesive resin, and a solid oil. 2. The cosmetic according to claim 1, further comprising a powder.