TW200521159A - Surface coated powder and a cosmetic composition containing said powder - Google Patents

Abstract

A surface-coated powder which comprises a powder coated with a metal oxide-organopolysiloxane hybrid wherein an organopolysiloxane and a metal oxide form a composite at a molecular level. The surface-coated powder is prepared by coating a powder with a metal oxide-organopolysiloxane hybrid sol, to thereby form a thin film of the above hybrid on the surface of the powder. The metal oxide of the above metal oxide-organopolysiloxane hybrid is preferably one or more of metal oxides selected from among a titanium oxide, a zirconium oxide and silicon dioxide. The above metal oxide-organopolysiloxane hybrid can have a controlled water repellency by the adjustment of the proportion of the metal oxide to the organopolysiloxane, and thus the water repellency of the powder can be controlled with ease by the adjustment of the above proportion. A cosmetic containing the above surface-coated powder is excellent in natural appearance and in the feeling during the practice of application.

Description

200521159 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to powder coated on the surface. In more detail, it is about powder coated with metal oxide / organic polysiloxane mixture on the surface. The present invention also relates to a cosmetic powder composed of the powder and a cosmetic containing the powder. [Previous technology] The powder used in cosmetics is used to improve the durability of the makeup or to improve the touch during makeup application. Generally speaking, it will be represented by fluorene, metal 4, and fluorinated phosphoric acid esters. The surface is coated with a water repellent surface treatment agent. If the surface-treated powder has low water repellency, the makeup durability cannot be improved. Conversely, if the water repellency is too high, the skin-friendly property is not good, and as a result, the durability of makeup may be poor, or the makeup may become dirty. Therefore, the adjustment of water repellency is important. The adjustment of the water repellency of the powder can be carried out by changing the treatment amount of the water repellent surface treatment agent when the powder is surface-coated, but the right treatment amount is too small, and the powder surface cannot be completely covered, which will cause Uneven quality-or agglutination. In the case of increasing the amount of treatment, if the amount is too large, a residual amount that cannot be covered on the surface of the powder will appear, making it impossible to generate water repellency corresponding to the amount of treatment. Furthermore, too little or too much processing is a problem of poor touch. That is, the method of adjusting the water repellency of the powder by changing the water repellent surface treatment has its problems. In general, the most commonly used powder is 4-way UULi ^ Water-repellent surface treatment agent for objects. From the perspective of 200521159 structure, easy access, performance, and safety, it is silicone or its derivative. . The applicant of the present invention has previously developed a metal oxide organic 1 crushed milk burned composite powder (Japanese Patent Laid-Open No. 2001-64395), which is a process in which a part of the silicon atoms of the organic polysiloxane is conducted through oxygen and metal atoms. Covalently bonded and uniformly complexed. This powder can be blended directly into makeup. [Summary of the invention] The present inventor believes that when surface treatment is used to control the water repellency of the powder surface, it is not performed by controlling the coating amount of the water repellent surface treatment agent on the powder surface, but to control the water repellency of the water repellent surface treatment agent. It is a better method in itself. It is also noted that the metal oxide-organic polysiloxane mixture is a mixture of a hydrophilic metal oxide and a hydrophobic organic polysiloxane, that is, by changing the metal oxide and the organic polysiloxane The proportion of the alkane can be adjusted by the water repellency of the mixture, and considering the use of the mixture in a powder surface treatment agent to control the water repellency of the surface-treated powder, the present invention has been completed. That is, the present invention is a surface-coated powder obtained by surface-coating a metal oxide-organic polysiloxane compound that is a composite of an organic polysiloxane and a metal oxide at a molecular level. The metal oxide 'in the metal oxide-organic polysiloxane mixture is preferably one or two or more metal oxides selected from titanium oxide, zirconia, and silicon dioxide. The organopolysiloxane in the metal oxide / organopolysiloxane fired mixture is preferably a residue represented by the following formula (1) in 200521159:

R I Y_S i I R -O-S i

y. R I I 0_S i-—O— S i _Y

⑴

R

[Wherein R 'is an alkyl group, an aryl group or an aromatic group having 1 to 22 carbon atoms, and may be the same or different. Y is a group represented by one R, one 0—or —r1—Si (—〇 一) 3 (however, R1 is an alkylene group having 1 to 5 carbon atoms), which may be the same or different, but at least One is a 0 — or a R1 — Si (~ 0 —) 3. In addition, η = ι to 100, and m = 0 to 5] The present invention is a powder for cosmetics composed of the above-mentioned surface-coated powder, and a cosmetic containing the powder for cosmetics. In addition, the method for producing a surface-coated powder according to the present invention is characterized in that a mixed product obtained by reacting a partial hydrolysate of a metal alkoxide with an organic polysiloxane having a reactive functional group at a terminal or side chain, The powder is subjected to a surface coating treatment and then dried to obtain a surface-coated powder. The organopolysiloxane is preferably represented by the following general formula (2): o-s

Ό-S

R I

I Ο-Si —X (2)

I

R ^ m R

[In the formula, R is an alkyl group, an aromatic group, or an aralkyl group having 1 to 22 carbon atoms, and may be the same or a phase I OX is a group represented by HH, _R, or —R1—si (_〇R2— ^ R1 is an alkylene group having 1 to 5 carbon atoms, R2 is hydrogen or an alkyl group having 1 to 5 carbon atoms) may be different or different, but at least one of them is ~ H or one R1 — (OR ~ ). Also, n == l ~ 100, m = 0 ~ 5] 200521159 [Embodiment] In the surface-coated powder of the present invention, the metal oxide-organic polysiloxane mixture on the surface of the powder-coated powder is a system Organic polysiloxane and metal oxide are compounded at the molecular level. Here, "composite at the molecular level" refers to the mixing of two phases of the organic polysiloxane and the metal oxide phase at the nanometer level. The phase domain size of the organic polysiloxane phase and the metal oxide phase of the mixture is below the visible light wavelength (400 nm). It is not possible to confirm the two phases of the organic polysilica sintered phase and the metal oxide phase by an optical microscope. The interface between the organic polyoxygen sintered phase and the metal oxide phase has a bond between a part of the metal atom and the silicon atom of the organic polysiloxane through oxygen. Valence bond. By the existence of this covalent bond, a mixture obtained by homogeneously complexing a metal oxide and an organopolysiloxane can be obtained. In the present invention, a mixture of a metal oxide and an organopolysiloxane, The sol state of the precursor is coated on the surface of the powder. On the surface of the powder, a metal oxide / organic polysiloxane mixture is formed. The above metal oxide / organic polysiloxane mixture is mixed with organic polysiloxane Metals of metal oxides such as alkane complexes can include, for example, titanium, aluminum, aluminum, etc. Shi Xi can also be used. The first compounds of these metals are as difficult as a field ★ _ 1 A 、

Gekou methoxide, ethoxide, and metal species change to metal oxides. Examples of the alkoxide include propanol, butanol, and isopropoxide. In addition, the organopolysiloxane used when compounding with a metal oxide is only 200521159, which requires an organopolysiloxane having a reactive functional group at a terminal or side chain (the present invention is called a reactive organic polysiloxane). Yes, it is not particularly limited. The reactive functional group is, for example, an alkoxy group, a silanol group, a carboxyl group, an amine group, an epoxy group, and the like, and is preferably an organic polysiloxane having a thiol group or an organic polysiloxane having a silanol group ( Herein, these organic polysiloxanes having an alkoxy group or a silanol group are sometimes simply referred to as alkoxy-containing organic polysiloxanes or silanol-containing organic polysiloxanes). The alkoxy group is a methoxy group, a propoxy group, a butoxy group, an isopropoxy group, and the like. Particularly, an organopolysiloxane derivative having an alkoxy group represented by the following general formula (2) is a preferable user.

I χ-s i I R

(2)

Ο—S i--O—S i—X

I I

R R

[In the formula, R is an alkyl group, an aromatic group, or an aralkyl group having 1 to 22 carbon atoms, and may be the same or different. X is a group represented by —H, —R or —R1 — Si (— —) 3 (however, R1 is an alkylene group having 1 to 5 carbon atoms, and R2 is hydrogen or an alkyl group having 1 to 5 carbon atoms) ' They can be the same or different, at least i of which are -H or an Rl — 8 丨 (—OR). Also, "n = 1 to 1 00, m = 0 to 5]. The alkyl group of the above-mentioned R is methyl, ethyl, propyl, etc., and a methyl compound is particularly preferred. Further, the above-mentioned aromatic phenyl groups such as aromatic phenyl and tolyl are aromatic phenethyl and the like. Examples of the organic polysaccharin derivative include general formula (3) (in this general formula (3), R1, R2, and n have the same definitions as in general formula (1)). Specific examples include compounds represented by the following formulae (5) and (5). 200521159 CHa | ✓ i —}. CHa <? Hv H > —S i-__ 1 CHa CHa 〇Ha o—s CHa f -〇 " S i CHa CH3 1, os i-CaKe_s i (OR total), (3) CH ^ > CH > (〇ch3), ⑷ s, i tOC2HB) e

CHg — s CHe ✓ c, h4 • Ο-— S i —- > I 1, 0 — S i L ^ f 20, ch3 J CM,

I (5), 0 — Si — CHi • f CHa The method for producing the surface-coated powder of the present invention will be described below. In the present invention, the surface of the powder is coated with the sol state of the precursor of the metal oxide-organopolysiloxane mixture, and the metal oxide-organopolysiloxane mixture is self-completed on the surface of the powder. In the example described here, titanium oxide is selected as the metal oxide. The titanium alkoxide is used as the starting material, and dimethylpolysiloxane containing an alkoxy group is used as the reactive organic polysiloxane. A mixed solution of water, an organic solvent and an acid is dropped into a titanium alkoxide for partial hydrolysis' to produce a titanium dioxide sol. At this time, it is preferable to slowly add the mixed solution to obtain a transparent sol. By adding the alkoxy-containing dimethylpolysiloxane derivative, a mixed sol is formed. At this stage, hydrolysis and polymerization are incompletely completed. The mixed sol is used for surface coating of powder. This mixed sol has the property of forming a transparent film. Coating the surface of the powder with this mixture / gluten, and then carrying out the mixing of the sol water on the surface of the powder 10 200521159 The decomposition and polymerization of the methyl polysilicone sintered mixture, thereby obtaining the surface coating with titanium oxide. The surface is covered with powder. In the present invention, a method for coating a powder surface with a mixed substance sol and forming a titanium oxide / dimethyl polylithium oxide core substance on the surface of the powder includes: mixing the mixed substance sol with the powder, and thereafter Then dry the method; or spray the mixture on the surface of the powder, and then dry it; or mix the mixture sol with the powder, and then add test agents such as gas and water to precipitate the mixture out of the powder A method of drying the surface. The mixed film formed by using the mixed sol is a transparent and soft uniform film. The mixture thin 膑, # can be controlled by changing the composition ratio of titanium oxide and dimethyl polysilicone to control its water repellency and refractive index. In addition, if the chitin alkoxide is hydrolyzed and polymerized separately, titanium oxide is formed, and it is difficult to produce a transparent film. On the other hand, if the alkoxy group-containing organic polysiloxane is hydrolyzed and polymerized alone, it will only have a simple high molecular weight and will not form a strong film. In the course of this hair month, a powder coated with a metal oxide / organic polysiloxane mixture is used as a surface powder. If it is a powder generally used in cosmetics, it can be plate-shaped, square-hammer-shaped, needle-shaped, and other particles. The particle structure such as diameter, porosity, and beneficial porosity is not particularly limited, and examples include inorganic powders, organic powders, pigment powders, and composite powders. Specifically: 'Can be listed: Prussian Blue, Ultramarine, Iron Oxide Red, Yellow Iron Oxide, Black Iron, Titanium Oxide, Oxidation, Alumina, Hafnium Oxide, Silicon Dioxide: Chemical, Emulsified, Carbonyl Acid Carbonate Office, Oxidation Complex, Chlorine Oxidation Complex, ",, Shixi I Aluminum Magnesium, Mica, Synthetic Mica, Synthetic Sericite, Sericite, 11 200521159 Talc, Kaolin, Silicon Carbide, Barium Sulfate, Bentonite, Montmorillonite And other inorganic powders such as boron nitride; bismuth oxychloride, titanium mica, iron oxide coated mica, iron oxide mica titanium, organic pigment treated mica titanium, aluminum powder and other glossy powders; magnesium stearate, stearin Organic powders such as zinc acid, N-fluorenyl lysine, nylon; pigment powders such as organic tar pigments, lake pigments of organic pigments; microparticle titanium oxide coated with mica titanium, microparticle zinc oxide coated with mica titanium, sulfuric acid Composite powders such as barium-coated titanium mica, titanium oxide-containing silicon dioxide, zinc oxide-containing silicon dioxide, etc., these powders can be used singly or in combination of two or more kinds. Or compound at least two Use it later._ In the present invention, the amount of the powder of the "metal oxide · organic polysiloxane" mixture is not particularly limited, and the powder is preferably 1 to 99% by mass (hereinafter, expressed in%). , More preferably 3% or more. The surface-coated powder of Benmemin is used as a powder in coatings, inks, and cosmetics. It is particularly useful as a cosmetic powder system.-The surface-coated powder of the present invention has water repellency. It is evaluated by the ease of getting wet with the mixed solution of water and organic solvent (2-propanol). If the powder is added to the mixed solution, the powder will float on the liquid surface when it is not wet, but if Increasing the ratio of 2-propanol to water will eventually settle the powder. The capacity ratio of 2 propanol to water at this time is defined as the degree of water repellency. For example, for 25 ml of water, the amount of 2-propanol If it is 10ml, the degree of water repellency is 0.4. The greater the degree of water repellency, the higher the water repellency of the powder. Use the surface-coated powder for cosmetics. If the water repellency is too low, , It will make makeup lasting because of being wet by sweat. On the other hand, if the water repellency is too high, Makes skin inferior, and makeup durability is not good. Specifically, the value of water repellency is preferably 0.6 to 12 200521159, and less than 1.2. Developed powders for foundations of cosmetics, etc. In order to make the appearance natural when coating, the optical characteristics of the powder are generally controlled. Specifically, for example, reducing the proportion of light reflected on the surface when light is incident on the powder and increasing the scattered light, thereby making the coating look unnatural. It disappears and can hide the shortcomings of the skin. By covering the surface of the powder with silica or titanium dioxide with different refractive indices, the scattered light can be increased relatively. However, when using a mixture of these inorganic oxides, 'if directly It has a hard feel when used, and it is necessary to perform a surface treatment in order to impart water repellency. In contrast, the present invention can simultaneously provide a soft touch by coating the powder with a metal oxide · _organic polysiloxane mixture. Sensitive water repellency, and by forming a transparent metal oxide-organic polysiloxane mixture layer on the surface of the powder, the scattered light can be increased. Next, a cosmetic material blended with the coated powder of the present invention will be described. The surface-coated powder of the present invention is surface-coated with a metal oxide-organopolysiloxane mixture, and is an excellent cosmetic material. The cosmetic center is the center, and there are no particular restrictions on the amount of skin care cosmetics, etc., but you can get the durability of the makeup, the feeling of use, and the natural outer cosmetic dosage form. , Lotion, lotion, hair cosmetic, etc. The blending of the surface-coated powder is preferably 0.1% by mass or more. Moreover, within the scope of not knowing the effects of the present invention,

The purpose is to normalize the feeling of fruit or powder, powder, inorganic powder, or water-soluble polymer, which can be appropriately blended with oily ingredients to impart powders such as emollients and pigments to impart coloring effects, alcohols, water and other aqueous ingredients to Add 13 200521159 to give a moist feeling, or add film-forming agents such as surfactants to disperse powders and adjust touch, polymer emulsifiers, UV absorbers, humectants, antioxidants, beauty ingredients, pH adjusters, consumer A foaming agent, a discoloration preventing agent, a preservative, a fragrance, and other components that impart various effects. The following examples illustrate the present invention, but the present invention is not limited to these examples. Preparation Example 1 of sol-containing soils In a glass beaker, lmmol of titanium tetraisopropoxide (manufactured by Wako Pure Chemical Industries, Ltd.) was placed in the glass beaker. While stirring with a magnetic stirrer, lmmol of water and 0 06mol of hydrochloric acid A mixture of 400 ml of isopropyl alcohol was dropped at a rate of about 2 ml / min to prepare a transparent titanium oxide sol. Immediately after the dripping was completed, 0.2 ml of a mixed solution of difluorenyl polysiloxane and isopropyl alcohol 200 ml not contained in the aforementioned chemical formula (4) of 0.2 m01 was added to pay titanium oxide. Methyl polysiloxane gel. Because the molar ratio of titanium tetraisopropoxide and dimethyl polysiloxane containing alkoxy group is 5 · 1, the sol prepared here is referred to as a 5/1 mixed sol. ^ In a glass beaker, put 1 mol of titanium tetraisopropoxide (manufactured by Wako Pure Chemicals) ^ While stirring with a magnetic stirrer, lm01 water, 006m1 hydrochloric acid, isopropyl alcohol (400ml) The mixed solution was dropped at a rate of about 2 ml / min to prepare a transparent titanium oxide sol. At the end of the dripping, immediately add 0.1 ml of the mixed solution of methyl polysiloxane and 100 ml of isopropyl alcohol containing enthalpy M I 4 _ shown in the aforementioned chemical formula (4) of 0.1 mol. To air y / l- ^ JL. ^ Bin • Dimethyl polysiloxane mixture gel. Because the molar ratio of titanium tetra, propoxide, and difluorenyl polysiloxane containing oxyl group is 1: 1, the sol prepared here is referred to as a 10/1 mixture. Sol. 200521159 Example 1 To 00 parts of titanium oxide (rutile type, reagent grade, manufactured by Kanto Chemical Co., Ltd.) 丨 00 parts, adding 20 parts of the 5/1 mixture sol of manufacturing example 1 and mixing, and then adding isopropanol to make a slurry . Based on the consideration of isopropanol and detached alkoxy groups in the mixed sol ', the solid content of the titanium oxide / dimethyl polysiloxane compound coated on the surface of the powder is set as a pair of products (called treatment The latter powder is the same hereinafter as about 5 mass%. These sides are pulverized by mixing with an electric grind spider, and the isopropyl alcohol is volatilized. This is equal to 100 ° C., dried, and pulverized to obtain a 5 / i mixture coated with oxanthine. Example 2 To 1 part of emulsified titanium (rutile type, test reagent special grade, manufactured by Kanto Chemical), 25 parts of the 10/1 mixed product sol of Manufacturing Example 2 was added and mixed, and then isopropyl alcohol was added to make a slurry. Based on the consideration of isopropanol in the mixed sol and the sintered oxyl group, the solid content of the titanium oxide / dimethyl polysiloxane fired mixture coated on the powder surface was set to about 5 masses for the product. %. These sides were mixed and pulverized with an electric grinding spider, while isopropyl alcohol was volatilized. This was equal to 100 C and then pulverized, to obtain a 10/1 mixture-coated titanium oxide. Comparative Example 1 To 1 part of titanium oxide (rutile type, reagent grade, manufactured by Kanto Chemical), 4 parts of alkoxy-containing dimethylpolysiloxane of the above chemical formula (4) was diluted with isopropanol and added. Mix 'and add isopropanol to make a slurry. These sides were mixed and pulverized with an electric grinding spider, while isopropyl alcohol was volatilized. This was dried at a temperature of 100 ° C and then pulverized to obtain a silicone-coated titanium oxide. Comparative Example 2 15 200521159 To 98 parts of titanium oxide (rutile type, test reagent special grade, manufactured by Kanto Chemical), 0.8 parts of methyl hydrogen dihydrogenated dimethyl polystone was burned with isopropyl alcohol Add the mixture and add isopropanol to make it a slurry. These sides are pulverized by mixing with an electric grinding spider ... the sides are allowed to volatilize isopropyl alcohol. This equal to IGGt was dried and pulverized 'to obtain 0.8% methyl hydrogen difluoride dimethylpolyoxoxan coated oxin. lb Comparative Example 3 For 100 parts of titanium oxide (rutile type, reagent grade, manufactured by Kanto Chemical), 4 parts of methylhydrodialkyldimethylpolysiloxane were diluted with isopropanol and mixed. Isopropanol was further added to make it into a slurry form. The isopropanol was mixed and pulverized with an electric grinder while the isopropanol was volatilized. This powder was crushed after drying, and 3.8 / 0 methyl hydrogen disulfide dimethylpolylithium oxoxane was coated with oxin. Water-repellent face removal The water-repellent evaluation was performed on the actual yoke examples 1, 2 and comparative examples 1 to 3. The water repellency evaluation was performed according to the following method. Into a 100ml beaker, add 25ml of water and 0 05g of the measurement sample, while stirring with an X magnetic stir bar, and lowering 2 propanol with a dropper. In the stirring state, the drop amount at the time of taking a sample that cannot be visually confirmed floating on the liquid surface. Organize,, and fruit in the following table 丨. For the degree of water repellency in the table, take the value of the volume ratio of 2 _ propanol drop and water, the higher the water repellency, the higher the water repellency.

16 200521159 From the results of Examples 1 and 2, it can be understood that by changing the ratio of starting materials (addition ratio of titanium tetraisopropoxide to alkoxy-containing dimethylpolysiloxane), even in the same treatment The amount can also control the degree of water repellency. From the results of Comparative Example 1, it is understood that only the alkoxydimethyl-containing polysiloxane containing the raw material of the mixture cannot exhibit sufficient water repellency. The titanium oxides in Examples 1 and 2 and before the coating treatment were evaluated using a variable-ratio differential meter. The evaluation sample was coated with a brush on the adhesive surface of a translucent tape (manufactured by Sumitomo 3), and measured with a variable-actimeter (manufactured by Tecvarudo, multi-spectrometer). The incident angle is set to be 50, and the light receiving angle is set to range from 50 to 80 (Figure 丨). By plotting the relationship between the brightness (γ) and the light receiving angle at this time, it can be confirmed from the results that the coated titanium oxide of Example 丨 and 2 has a lower brightness on the low-angle side and a higher-angle side than the untreated titanium oxide. The degree of relief is increased. Since the low-angle side corresponds to the specular reflection light and the high-angle side corresponds to the scattered light, it can be confirmed that coating with a mixed substance sol can improve the light-scattering ability. Examples 3 and 4 Production of powdery powders according to the above Examples 1, 2 and Comparative Examples 1 to 3 _ The bottom is a powdery foundation not composed of the following table. 'The uniform spreading was extended by 40 special reviewers.' "Combination", "makeup durability", "natural appearance" and other characteristics. The number of people judged to be good was evaluated based on the following criteria. The evaluation results are summarized in Table 2. Evaluation ◎: 3 or more 5 0: 25 to 34 17 200521159 △: 15 to 24 X: less than 1 5 Table 2 Composition name examples Comparative Example 3 4 4 5 6 1 5/1 mixture coated with titanium oxide ( Example 1) 15 — — — — 2 10/1 mixture coated with titanium oxide (Example 2) — 15 — — — 3 Alkoxy-containing dimethylpolysiloxane coated titanium oxide (Comparative Example 1) _ _ 15 — _ 4 Methyldioxane-polysiloxane coated titanium oxide (Comparative Example 2) _ — 15 — 5 Methyldioxane-polysiloxane coated titanium oxide (Comparative Example 3) — — _ — 15 6 Mica 10 10 10 10 10 7 Talc 5 5 5 5 5 8 Nylon powder 5 5 5 5 5 9 Micro-particle zinc oxide 10 10 10 10 10 10 Colored pigment 8 8 8 8 8 11 Sericite remaining remaining remaining remaining remaining 12 Horned Shark 5 5 5 5 5 13 Vaseline 4 4 4 4 4 14 Silicone oil 3 3 3 3 3 15 Preservatives appropriate amount appropriate amount appropriate amount 16 Spices appropriate amount appropriate amount appropriate amount (evaluation item) Spread evenly extended ◎ Δ Δ 〇 Feeling of closeness ◎ ◎ ΔX Makeup durability ◎ Δ Δ X Natural appearance ◎ Δ Δ X Δ

Production method A: Ingredients 1 to 11 are mixed and dispersed. B: Mix ingredients 12-16. C: B was added to A, and pulverized to obtain a powdery foundation. As can be understood from the results of the table, Examples 3 and 4 of the present invention obtained good results in all items. Example 5 To 100 parts of yellow iron oxide, 20 parts of the 5/1 mixture of the manufacturing example 丨 was added and mixed, and then isopropyl alcohol was added to make it into a slurry. Taking into account the isopropanol and detached alkoxy groups in the sol, the solid content of the titanium oxide / dimethylpolysiloxane mixture coated on the surface of the powder was set to about 5% by mass to the product. These sides were pulverized by electric research and mixing, while isopropanol was volatilized. This was equal to 100 ° C and dried and pulverized to obtain a 5/1 mixture coated with iron flea. In the same manner, a 5/1 mixture was coated with iron oxide red and black oxygen domains. The obtained material 5/1 mixture was coated with iron oxide with a non-staining color, and was about ㈤ grade compared to those treated with Shi Xi_ only. The water repellency is in the range of 0.6 or more and less than 0.8. To carry out the combination, add 100 parts of ferric oxide, add "part 10/1 mixed sol" of Manufacturing Example 2 and mix it, and then add isopropanol to make it into a slurry. Consider the difference in the mixed sol Propanol and detached alkoxy groups are used to oxidize the surface of the powder: too much-the solid content of the methyldenyl polysiloxane mixture is set to 5% by mass of the product. Use an electric mortar to mix and pulverize, while isopropyl diisocyanate is equal to 1 () (rc after drying and crushing, the Cong mixture is made of two Γ milk t iron. The same method is used to obtain 1G / 1 mixture. Coated with oxidized iron. The iron oxide pigment coated with the obtained material is equivalent to that treated with ⑦ only. The degree of water repellency is above 0.8 and less than ". 200521159 for sericite 100 parts, 20 parts of the 5/1 mixed product sol of Manufacturing Example 1 was added and mixed, and then isopropyl alcohol was added to make a slurry. Considering the isopropyl alcohol and the detached alkoxy group in the mixed material sol, it will be covered with The solid content of the titanium oxide / dimethyl polyoxygen sintered mixture on the surface of the powder is set to about 5 for the product. The mixture is pulverized by electric grinding spider while volatilizing isopropanol. The dried powder is equal to 100 ° C and pulverized to obtain a 5/1 mixture coated sericite. A mixture of 5/1 was coated with talc and mica. The degree of water repellency was in the range of 0. 6 or more and less than 0.8. Example 8 100 parts of sericite was added and 1/10/1 mixture of Production Example 2 was added. 25 parts of sol are mixed, and then isopropanol is added to make it into a slurry. Considering the isopropanol and detached alkoxy group in the sol, the titanium oxide / dimethyl polysiloxane will be coated on the surface of the powder. The solid content of the mixture is set to about 5% by mass of the product. These are mixed and pulverized with an electric spider, and the isopropyl alcohol is volatilized. This is dried at 100 ° C and pulverized to obtain 10 / 1. The mixture is coated with sericite. In the same manner, a 10/1 mixture is coated with talc and mica. The degree of water repellency is in the range of 1.0 or more and less than 1.2. Example 9 Powdery foundation component (%) 1 · 5/1 mixture coated with titanium oxide (Example 1) 10.0. 2 · 10/1 mixture coated Titanium (Example 2) 10.0. 5/1 mixture coated talc (Example 8) 15.0 4 · 10/1 mixture coated sericite (Example 8) Remaining 5. Spherical nylon powder 5 « 0 200521159 6 · —oxidized crushed 7 · 10/1 mixture coated with yellow iron oxide, iron oxide red, black iron oxide (Example 6) 5.0 5.0 8 · liquid paraffin 9 · polyisobutylene 10 · triisostearic acid Diglyceride 11 · Beauty ingredients 12 · Perfume manufacturing method 4.0 2.0 3.0 Appropriate amount

A: Ingredients 1 to 7 are mixed. Β: Components 8 to 10 are dissolved by heating, and component u and component a are added. C: B is added to A and kneaded, and crushed with a hammer mill. D: A powdery foundation is obtained by pressure molding on a metal box. The obtained powdery foundation has uniform spreadability, good skin-friendliness, moderate adhesion, natural appearance, and excellent makeup durability. Example 10 Oily foundation component 1 · 5/1 mixture is coated and oxidized Titanium (Example 1) 2 · 10/1 mixture coated with titanium oxide (Example 2) 3. Zinc oxide 4. 5/1 mixture coated sericite (Example 7) 5 · 10/1 mixture coated mica ( Example 7) The 6 · 5/1 mixture was coated with yellow iron oxide, red iron oxide, and black iron oxide (Example 5) (%) 8.0 6.0 10.0 Remaining 10.0 7.0

21 200521159 7 · Horn shock burn 15.0 8 · Brazil palm butterfly 3.0 9 · Microcrystalline ant 5.0 10 · Methylpolysiloxane 10.0 H · Decamethylcyclopentyl oxane burn 10.0012 · Appropriate amount of beauty ingredients 13 · Proportion of flavor production method

A: Mix ingredients 1-6. B: Components 7 to 10 are dissolved at 90 ° C, and component 11 is added. C: Add B to A to blend. D: Add ingredients 12-13 to C and mix well. E: An oily foundation was prepared by heating D into a metal box. The obtained oily foundation has uniform spreadability, a close feeling, a natural appearance, and excellent makeup durability. (%) 5.0 3.0 5.0% 4.0 6.0 1.0

Example 11 Oil-in-water emulsified base component 1 · 5/1 mixture coated with titanium oxide (Example 1) 2 · 10/1 mixture coated with titanium oxide (Example 2) 3 · 5/1 mixture-coated silk Mica (Example 7) 4_ 5/1 mixture coated with yellow iron oxide, iron oxide red and black iron oxide (Example 5) 5. Neopentyl glycol dicaprate 6. Soy lecithin 22 200521159 7. Sorbitol Anhydride sesquioleate 2.0 8. Pure water remaining 9. Propylene glycol 9.0 10. Preservative amount 11. Decamethylcyclopentasiloxane 20.0 12. Squalane 5.0 13. Polyacrylic acid powder 3.0 14. Beauty Appropriate amount of ingredients 15. Producing method of proper amount of flavor A: After dissolving ingredients 5 to 7, add ingredients 1 to 4 and mix well. B: After mixing ingredients 11-15 with a homogenizer, add A and disperse and mix. C: 8 to 10 ingredients which are separately dissolved and mixed are added to B and emulsified and mixed. D: C is defoamed to obtain an oil-in-water foundation. (%) 35.0 Remaining 5.0 10.0 The oil-in-water foundation prepared has a uniform spreadability and a sense of closeness, giving a natural appearance and excellent makeup durability. f Example 12 Eye shadow component 1 · 10/1 mixture coated with sericite (Example 8) 2. 10/1 mixture coated with talc (Example 8) 3 · 10/1 mixture coated with titanium oxide (Example 2) 4. · 1〇 / 1 mixture was coated with yellow iron oxide, iron oxide red and black iron oxide (Example 6) 23 200521159 5. Iron oxide red covered with mica titanium oxide 10.0.0. Spherical polystyrene powder 5.0 7 Nonporous spherical silica 5.0 8. Diisostearate malate 4.0 9. Squalane 4.0 10. Diglyceryl triisostearate 4.0 14. Proper amount of beauty ingredients 15. Proper method of fragrance — A: Mix ingredients 1-7. B: dissolve ingredients 8 to 10 under heating, add ingredients 11 and 12 ° to them, C: add B to A and knead it, and pulverize with a hammer mill. Nose D: squeezed into a metal plate to make an eye shadow

The produced eyeshadows had good hair color, good skin-friendliness, moderate adhesion, and excellent makeup durability. I Example 13 Mascara Ingredients (%) 1. Carnauba wax 4.0 2. Melissa 4.0 3. Pentaerythryl citronellate 2.0 4. Sorbitol 1.5 5. Sucrose fatty acid ester 1.5 6. Sorbitol anhydride Silsesquioleate 2.0 24 200521159 7. Polyoxyethylene sorbitan monooleate 1.0 · (20E.O.) 8 · 5/1 mixture coated with titanium oxide (Example 1) 2.0 9 · All containing Fluoroalkyl ester coated black iron oxide 8.0 10 · 5/1 mixture coated mica (Example 7) 6.0 11. Pure water remaining 12. Sodium hydroxide 0.5

13 · 1,3—butanediol 8.0 14 · appropriate amount of antiseptic 15. polyalkyl acrylate aqueous dispersion solution 300 16 · nylon powder 4〇17 · appropriate amount of cosmetic ingredients 1 8 · appropriate amount of perfume A: Ingredients 1 ~ 4 Heat and dissolve at 100 ° C, add ingredients 5 to 7 and make

Dissolve. Add ingredients 8 to 10 and mix thoroughly to disperse the powder and bring the temperature to 75 ° C. B: The components U to 17 were mixed and dissolved, and the temperature was set to 75 ° C. C. Add B to A and emulsify and mix. After defoaming and cooling, component 18 was added to prepare a mascara. Good adhesion (%) 10.0 The color development of the mascara made and the ingredients for the eyelashes Example 1 · Microcrystalline 蠛 25 200521159 5.0 5.0 7.0 5.0 10.0 The remaining 10.0 10.0 5.0 1.0 The appropriate amount and the amount is removed 2. Refinedly Wax 3. Polyethylene polypropylene copolymer 4. Liquid lanolin 5. Vaseline 6. Cetyl isooctanoate 7. Liquid paraffin 8. Color pigment 9. Mica titanium 10. 5/1 mixture coated with titanium oxide (implementation Example 1) 11. Dye 1 2. Cosmetic ingredients 13. Flavor manufacturing method A: Ingredients 1 to 7 are dissolved by heating at 110 ° C. B: Add ingredients 8 to 13 to A and disperse at 90 ° C. C: Fill the container with B and cool to make lipstick. The obtained lipstick has good ductility, lubricity and good usability. Example 15 Sunscreen cosmetic ingredients (%) 1. The 5/1 mixture was coated with titanium oxide (Example 1) 10.2. The 5/1 mixture was coated with titanium oxide (Example 2) 10.0. 3. Decamethylcyclopentylsiloxane 20.0 4. Neopentyl glycol didecanoate 5.0 26 200521159 5. P-oxyl cinnamic acid 2 ~ ethylhexyl ester 10 () 6. 4-Third-butyl One 4 '~ methoxydibenzylidene 5.0 methane 3.0 appropriate amount 5.0 appropriate amount remaining

7. Polyoxyethylene fluorenyl polysiloxane copolymer 8. Fragrance 9. Ethanol I 〇 · Cosmetic ingredients II _ pure water Manufacturing method A: Disperse and mix ingredients 1 to 8 with a homogenizer. Combination Β: Adding a mixed solution of ingredients 9 to 11 to Α and emulsifying and mixing them to prepare a sunscreen cosmetic. The prepared sunscreen cosmetic has a high ultraviolet shielding effect, and the whiteness is not conspicuous, and the usability such as spreading and spreading is good. The metal oxide-organic polysiloxane mixture of the surface-coated powder in the surface-coated powder of the present invention, by changing the metal oxide and the organic polysiloxane

The proportion can adjust the water repellency, so by adjusting the water repellency, the water repellency on the surface of the powder can be changed even if the same amount of mixture is attached to the powder as the mother body. Also, the above-mentioned metal oxide-organic polysiloxane mixture has southern transparency in the visible light region, so it does not damage the color of the powder as a matrix, and it can form a uniform and controlled refractive index film on the surface of the powder. Therefore, the optical properties of the mother powder can be changed. Furthermore, the metal oxide / organic polysiloxane mixture has the softness of 27 200521159 organic polysiloxanes, so a surface-coated powder having a good feeling of use can be obtained. In addition, the cosmetic material blended with the surface-coated powder of the present invention has a good feel when applied 'and a natural appearance when makeup is applied. [Brief description of the drawings] Acceptance Fig. 1 'is a graph showing the relationship between the surface-coated titanium oxide and the untreated light angle and brightness (Y) of the present invention. Peptide

[Description of main component symbols]

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Claims (1)

200521159 10. Scope of patent application: 1. A surface-coated powder, which is composed of organic polysiloxane and metal oxide; a metal oxide-organic polysiloxane sintered composite compounded by a knife layer, for surface coating. 2. The surface-coated powder according to item 1 of the scope of patent application, wherein the metal oxide in the metal oxide-organic polysiloxane mixture is selected from one of titanium oxide hafnium oxide and silicon dioxide or Two or more kinds of metal oxides 0 3 · If the surface-coated powder of item 1 or item 2 of the scope of patent application, it calls for A metal oxides / organic polyliths Burning * 'is a residue represented by the following general formula (1): Y — S i — — S i --— S i O —S i —Ύ ί 1) R ^ R ^ a ^ RR [wherein R is an alkyl, aromatic or aralkyl group having a carbon number of i to 22 , Can be the same or different; γ is represented by —R, —0 一 or _111_8 丨 (—〇_) 3 (But R1 is an alkylene group having 1 to 5 carbon atoms), which may be the same or different, at least one of which is a 0 —or —R1 —Si (— 0 —) 3; and, n = 1 to 100, m = 0 to 5]. 4. The surface-coated powder according to item 1 of the patent application scope, wherein R in the general formula (1) is a methyl group. 5 · —A method for manufacturing a surface-coated powder, which is used to manufacture the surface-coated powder of the first scope of the patent application, which is characterized in that a part of the hydrolysate of the metal alkoxide has a reactive functional group at the terminal or side chain The mixture obtained by the organic polylithic oxy-baking reaction is coated on the surface of the powder and then dried. 29 200521159 6. The method according to item 5 of the patent application, wherein the terminal or side-bond reactive g-energy-containing organopolysiloxane is an organopolysiloxane derivative represented by the following general formula: [Wherein R is an alkyl group, aromatic group or aralkyl group having 1 to 22 carbon atoms, which is the same or different; X is a group represented by —H, —R or —Rl_Si (—〇r2—) 3; However, R1 is a carbon support group of carbon * Bu5, R2U or carbon number JJ group) can be the same or different, at least # i of which are -H or -r: ΓΛΏ 2 _ \ · 1 BU OR2—) And 100, m = 0 ~ 5] 7. The method according to item 6 of the patent application, wherein the general formula is fluorenyl. R 8. The method according to item 6 of the scope of patent application, wherein the organopolysiloxane derivative of the general formula (2) is a compound represented by the following general formula (3): CHi. CHal < R20) aS i -R, S i_ I CHa -oS CHi I i — R1 —S i (〇m (3) CHB CHa (where R1 represents an alkylene group having 2 to 4 carbon atoms, and R2 is a CIi3 or — C2H5 , Η is 6 ~ 16) 〇 ..- A kind of cosmetic powder, which is composed of the surface-coated powder according to any one of the patent claims No. I to No. 4 Η) · -Cosmetics' Cosmetic powder containing item 9 of the patent claim. 30