JPH07206637A - Inorganic powder surface-treated with reactive organopolysiloxane - Google Patents

Abstract

PURPOSE:To obtain an inorganic powder which is useful as a component for skin cosmetic and hair cosmetic by surface-treating the powder particles with a reactive organopolysiloxane copolymer of a specific chemical structure. CONSTITUTION:Inorganic powder particles are surface-treated with a reactive organopolysiloxane bearing the groups directly bonding to Si, namely group -R<1>-X, group -R<2>-Si(R<3>)3-a-(OR<4>)a, group-(CH2)l-O-(C2H4O)m-(C3H6O)n-R<5>(R<1> is a direct bond, a divalent hydrocarbon; R<2> is an alkylene; R<3>, R<4> are an alkyl; R<5> is H, acyl, a monovalent hydrocarbon; X is a reactive organic group; a is 2, 3; l is 0, a positive integer, m, n are 1 to 150), preferably of the formula [R is H, a monovalent hydrocarbon, a halogenoalkyl; Y is -R<1>-X; Z is -R<2>-Si(R<3>)3-a-(OR<4>)a; Q is-(CH2)l-O-(C2H4O)m-(C3H6O)-R<5>; M is R, Y, Z, Q; o is 0 to 500; p, q, r are 0 to 200). The cosmetics containing the inorganic powder manifests excellent durability, water resistance, affinity to skin, glossing effect, water repellency and flexibility.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inorganic powder surface-treated with a reactive organopolysiloxane and a cosmetic composition containing the same, and more particularly to skin cosmetics and hair cosmetics having various excellent properties. The present invention relates to an inorganic powder surface-treated with a reactive organopolysiloxane copolymer having a specific chemical structure, and a cosmetic containing the same as an essential component.

[0002]

2. Description of the Related Art Skin cosmetics include cleansing cream, cold cream, hand cream, powder, lotion, foundation, mascara, and
There are various types such as eye shadows, lotions, lipsticks, nail polishes, sunscreen creams, hair growth agents for drugs or quasi-drugs, dandruff removal shampoo, and hair cosmetics, depending on the intended use, shampoos, rinses, There are various types such as set lotion, hair spray, permanent wave agent, mousse agent, and hair dye.

The main ingredients of these cosmetics are liquid paraffin, paraffin wax, fatty acids, higher alcohols,
Animal and vegetable oils and fats, synthetic esters, polyalkylene glycol derivatives, silicone compounds, inorganic powders and the like are used. Of these, inorganic powders usually do not have a defined particle shape and have too strong adhesion to the skin or hair, so when actually used in cosmetics, the frictional resistance between particles and with the skin increases. However, there was a drawback in that a smooth, extended feel could not be obtained. In addition, most powder surfaces have active sites, but these active sites cause decomposition of components such as fragrances contained in cosmetics, causing problems such as generation of unpleasant odor and deterioration. . Further, in the case of makeup cosmetics, for example, powders are often blended in the oil phase of makeup cosmetics in order to reduce makeup damage, but especially inorganic powders should be uniformly dispersed in the oil phase. Is very difficult. Inorganic powders such as pigments differ in the degree of hydrophilicity and lipophilicity of the surface depending on the type, and there are cases where various powders with different surface activities are mixed, and they do not show a certain property. Many. Furthermore, the surface activity of the powder also changes due to changes in particle size and shape due to mechanical impact force, or the appearance of new surfaces. Differences in wetness due to secretions such as water and sweat due to such differences in hydrophilicity / lipophilization and differential surface activity, and non-uniform physical adhesion to the powder surface with weak force. Or difference in the amount of adsorbed oil agent and H of the oil agent
The difference in LB and the segregation of these oil agents due to the impact force of the machine during the manufacturing process usually cause the transparency of the cosmetic film, the collapse of the cosmetic film and the lack of a feeling of adhesion. Therefore, in conventional cosmetics, the change in the refractive index of the powder and the aggregation of the powder occur due to the difference in the wetting method of the powder by water or sweat, causing the collapse of the makeup film and the floating of the makeup. There was a flaw.

In order to solve the above problems, it has been conventionally practiced to subject the powder to a silicone treatment. For example, a method of treating powder with methyl hydrogen polysiloxane (JP-A-60-163973, JP-A-61-212776).
7, JP-A-61-190567, JP-A-61-2152
16, JP-A-63-30407, JP-A-63-1390
15, JP-A-63-165461, JP-A-1-1105
40, JP-A-3-163172, and JP-A-4-24647.
4, Japanese Patent Publication No. 1-54379, Japanese Patent Publication No. 1-54380, Japanese Patent Publication No. 1-54381) and a method of treating with various silane coupling agents (JP-A-62-177070, JP-A-2-218603, JP-A-4-218603). 193816),
Method of blending volatile silicone (Japanese Patent Laid-Open No. 1-2712)
06, JP-A-4-117316, JP-A-4-18761
No. 1), a method of treating with silicic acid hydrate, etc.
-115211) and other methods of treating with silicone (JP-A-4-202108, JP-A-4-2021).
09, JP-A-4-202110, JP-A-4-20211
No. 1) has been proposed.

[0005]

A cosmetic containing such a silicone-treated inorganic powder improves the effect to some extent, that is, durability, water resistance, compatibility with skin,
Improves glossiness, water repellency, water vapor permeability, gas permeability, and lubricity, but dispersibility in oil necessary for cosmetics, filler retention, film-forming property, product stability, use sex,
It was still insufficient especially in terms of growth. Therefore,
The present invention has been made in view of such circumstances and has been made to solve the problems of the above-mentioned conventional techniques, and has durability, water resistance, affinity with skin, gloss imparting property, water repellency for cosmetics. ,
Inorganic powder that imparts flexibility, water vapor permeability, gas permeability, lubricity as well as dispersibility in oil, retention of filler, film-forming property, product stability, and usability, and cosmetics containing it The challenge is to provide fees.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted diligent research on an inorganic powder to be blended with a cosmetic and a cosmetic in which the inorganic powder is combined with other ingredients. Found that an inorganic powder surface-treated with a reactive organopolysiloxane copolymer having a specific chemical structure, which has never been proposed, is effective for improving the properties of cosmetics, and further studied to complete the present invention. It was

That is, the present invention relates to the following formula in which one molecule is directly bonded to a silicon atom: -R ¹ -X (wherein R ¹ is a direct bond or has 1 to 20 carbon atoms).
Represents a divalent hydrocarbon group of X, and X represents a functional group having organic reactivity).
And Y also referred to as group), the following ^{formula: -R 2 -Si (R 3)} 3-a - in (OR ⁴⁾ _a (wherein, R ² represents an alkylene group having 5 to 2 -C, R ³ And R ⁴ each independently represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and a represents an integer of 2 or 3) (hereinafter, also referred to as Z group) to) the following _{formula: - (CH 2) l -O-} (C 2 H 4 O) m - (C 3 H
₆ O) _n -R ⁵ (In the formula, R ⁵ represents a hydrogen atom, an acyl group or a monovalent hydrocarbon group, l represents 0 or a positive integer, and m and n represent an integer of 0 to 150. Where m + n is an integer of 1 to 150) and a surface-treated cosmetic with a reactive organopolysiloxane having at least one polyoxyalkylene group represented by the formula (hereinafter, also referred to as Q group). Inorganic powder for blending with

The present invention is particularly applicable to the following formula:

[Chemical 2] [Wherein, R represents a hydrogen atom, a monovalent hydrocarbon group or a halogenated alkyl group independently of one another, Y represents the following formula: -R ¹ -X (wherein, R ¹ is a direct bond or C 1 -C Through 20
Represents a divalent hydrocarbon group, and X represents an organic-reactive functional group).
Z following ^{formula: -R 2 -Si (R 3)} 3-a - in (OR ⁴⁾ _a (wherein, R ² represents an alkylene group having 5 to 2 -C, R ³ and R ⁴ independently of one another Represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and a represents a condensable silylalkyl group represented by the formula: a represents an integer of 2 or 3, and Q represents the following formula:-(CH ₂ ) _{l -O- (C 2 H 4 O} ) m - (C 3 H
₆ O) _n -R ⁵ (In the formula, R ⁵ represents a hydrogen atom, an acyl group or a monovalent hydrocarbon group, l represents 0 or a positive integer, and m and n represent an integer of 0 to 150. Where m + n is an integer of 1 to 150), M represents the above-mentioned meaning of R, Y, Z or Q, o represents an integer of 0 to 500, and p,
q and r represent an integer of 0 to 200, provided that p
Is 0, M represents Y, and q and r are 1
Represents an integer of 0 or more, when q is 0, M represents the meaning of Z, and p and r represent an integer of 1 or more; when r is 0, M represents the meaning of Q, and p and q Represents an integer of 1 or more], which is surface-treated with a reactive organopolysiloxane and is incorporated into a cosmetic.

R in the above formulas are independently of each other a hydrogen atom,
Monovalent hydrocarbon groups such as methyl group, ethyl group, propyl group, butyl group, octyl group, dodecyl group, phenyl group,
A phenethyl group or the like, or a halogenated alkyl group such as a trifluoropropyl group or a chloropropyl group,
A monovalent hydrocarbon group or a fluoroalkyl group is preferable, and a methyl group is particularly preferable.

R ¹ of the Y group is a direct bond or a divalent hydrocarbon group having 1 to 20 carbon atoms, for example, —CH ₂ —,
_{-CH 2 -CH 2 -, - CH} 2 -CH 2 -CH 2 -, -
_{CH (CH 3) CH 2 -} , - (CH 2) 4 -, - (CH
_{2) 6 -, - (CH} 2) 8 -, - CH 2 CH 2 C 6 H 4
_{-, - (CH 2) 12} -, - (CH 2) 16 - a, preferably from propylene or the like. Further, X of the Y group is a functional group having organic reactivity, such as an epoxy group, an amino group, a hydroxyl group, a carboxyl group, an acyl group, a mercapto group, a methacrylo group, an isocyanate group, a ureido group, a vinyl group,
Examples thereof include an amide group, an imide group, an imino group, an aldehyde group, a nitro group, a nitrile group, an oxime group, an azo group and a hydrazone group. Specific examples of Y _{groups, - (CH 2) 3 OH} , -
_{(CH 2) 3 SH, -} (CH 2) 3 OCH 2 CH (O)
_{CH 2, - (CH 2)} 3 NH 2, - (CH 2) 3 OC
_{(O) C (CH 3)} = CH 2, - (CH 2) 7 COOH
However, the present invention is not limited to these.

[0011] The Z R ² is an alkylene group having 5 2 -C atom of the group, for example _{-CH 2 -CH 2 -, - CH} 2 -
_{CH 2 -CH 2 -, - CH} (CH 3) CH 2 -, - (C
H ₂ ) ₄ —, — (CH ₂ ) ₅ — and the like, preferably an ethylene group. R ³ and R ⁴ are each independently a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, such as a methyl group, an ethyl group, a propyl group or a butyl group,
Preferably R ³ is a methyl group and R ⁴ is a methyl group or an ethyl group. a is an integer of 2 or 3, but is preferably 3 from the viewpoint of reactivity. Specific examples of Z _{group, -CH 2 -CH 2 Si (OCH} 3) 3, -CH 2
_{-CH 2 Si (OC 2 H 5} ) 3, -CH 2 -CH 2 Si
_{(CH 3) (OCH 3)} 2, -CH 2 -CH 2 Si [O
CH (CH _{3) 2] 3, - (CH 2) 3} Si (CH 3)
_{(OC 2 H 5) 2,} - (CH 2) 5 Si (C 2 H 5)
Examples thereof include (OC ₂ H ₅ ) ₂ but are not limited to these.

R ⁵ of the Q group is a hydrogen atom, an acyl group such as an acetyl group or a propionyl group, or a monovalent hydrocarbon group such as a methyl group, an ethyl group, a propyl group,
A butyl group, a phenyl group, a vinyl group or the like is preferable, and a methyl group is preferable. Also, l is 0 or a positive integer, and m and n are integers of 0 to 150, provided that m + n is an integer of 1 to 150, preferably 1 is 1 to 10, particularly 1 to 5 An integer, m is an integer from 0 to 50, especially 0 to 30, n is an integer from 0 to 50, especially 0 to 30, and m + n is an integer from 1 to 50, especially 5 to 30.

Further, the M group in the above reactive organopolysiloxane is 1 in the meaning of R, Y, Z or Q above.
And the groups mentioned as being preferred for each also apply to the M group. Also, o is 0 to 500
And p, q and r are each an integer from 0 to 200, provided that when p is 0, M is Y
, And q and r represent an integer of 1 or more, when q is 0, M represents one of the meanings of Z, and p and r represent an integer of 1 or more, and r Is 0, M represents one of the meanings of Q, and p and q represent an integer of 1 or more. In addition, o is preferably 0 to 100, particularly 0.
To 50, p is preferably 1 to 50, particularly 1 to 30, q and r are preferably 1 to 50, especially 1
Through 30.

As the reactive organopolysiloxane used in the present invention, any of those included in the above range can be used. Specific examples thereof include those represented by the following formulas (1) to (6), but it goes without saying that they are not limited to these.

[Chemical 3]

[Chemical 4]

Reactive Organo Used in the Present Invention
Polysiloxanes can be combined in a manner known per se.
Can be manufactured more. For example, the expression represented by the above formula (1)
In the case of compound, the corresponding methyl hydrogen polysiloxane
CH to Sun₂= CHCH₂OCH₂CH (O) CH₂When
CH₂= CHSi (OCH₃)₃And CH₂= CHCH ₂
O (C₂H_FourO)₂₀(C₃H₆O)_FiveCH₃And platinum
Can be prepared by addition reaction in the presence of a catalyst
It Similarly, in the case of the compound represented by the above formula (2),
CH for the corresponding methyl hydrogen polysiloxane₂
= CHCH₂OC (O) C (CH₃) = CH₂And CH₂
= CHSi (OCH₃)₃And CH₂= CHCH₂O (C
₂H_FourO)₁₂CH₃And addition reaction in the presence of platinum catalyst
It can be manufactured by Further, the above formula (3)
In the case of compounds represented by, the corresponding methyl hydrogen
CH to polysiloxane₂= CHCH₂OH and CH₂=
CHSi (OCH₃)₃And CH₂= CHCH₂O (C₂
H_FourO)₇(C₃H₆O)₁₂CH₃And platinum-based catalyst
It can be produced by an addition reaction in the presence. Also,
In the case of the compound represented by the above formula (4), the corresponding methyl
CH for hydrogen polysiloxane₂= CHCH₂C
l and CH₂= CHSi (OCH₃)₃And CH₂= CHC
H₂O (C₂H_FourO)₁₆CH₃In the presence of platinum-based catalyst
The resulting product is then treated with ethylene diamine.
It can be produced by reacting with benzene.

The inorganic powder used in the present invention includes silicic acid, silicic acid anhydride, magnesium silicate, talc, kaolin, sericite, silica-alumina, silica gel, quartz, clay, mica, bentonite, titanium-coated mica, and oxy. Bismuth chloride, zirconium oxide, magnesium oxide, zinc monoxide, zinc dioxide, titanium dioxide, antimony oxide, calcium phosphate, calcium carbonate, magnesium carbonate, yellow iron oxide, black iron oxide, red iron oxide,
Ultramarine, chromium oxide, chromium hydroxide, barium sulfate, magnesium aluminometasilicate, magnesium aluminate silicate, calamine, carbon black, aluminum hydroxide, aluminum oxide and the like, but are not particularly limited thereto. . The particle size of the above-mentioned inorganic powder is not particularly limited, but from the viewpoint of improving the dispersion stability, it is desirable to be as small as possible, and among them, the average particle size is preferably 10 μm or less, and particularly preferably 1 μm or less.

In the present invention, the surface treatment of the inorganic powder with the reactive organopolysiloxane is usually carried out by optionally adding the polysiloxane, a suitable solvent such as an organic solvent or an aqueous solvent, and the untreated inorganic powder. Mix and stir under heating,
Then, the solvent may be removed from this mixture, and the surface-treated powder obtained may be washed and dried if necessary. At the time of this surface treatment, an acid or alkali, or a catalyst such as a metal catalyst may be added to the solvent. Also,
The surface treatment may be performed in a gas phase system without using a solvent, for example, plasma treatment or the like. Further, the surface treatment of the inorganic powder may be carried out only with the reactive organopolysiloxane or may be carried out together with the other components of the cosmetic, and is not particularly limited. Further, in the above surface treatment, the amount of the reactive organopolysiloxane with respect to the untreated inorganic powder can vary over a wide range depending on the particle size of the inorganic powder, etc., but is usually 0 with respect to 100 parts by weight of the inorganic powder. 1 to 40 parts by weight, preferably 1 to 30 parts by weight.

The present invention also relates to a cosmetic containing an inorganic powder surface-treated with the above-mentioned reactive organopolysiloxane of the present invention. Here, the blending amount of the surface-treated inorganic powder in the cosmetic may be variously changed depending on the purpose of use and other blending components, but generally, when the total amount of the cosmetic is 100% by weight, it is 0 0.1 to 40% by weight, preferably 1 to 30% by weight.

The cosmetic material of the present invention includes, in addition to the above-mentioned surface-treated inorganic powder, a component usually used in cosmetics, for example, a surface-treated or non-surface-treated inorganic powder. , Such as those listed above, oils such as camellia oil, rapeseed oil, sesame oil, safflower oil, cottonseed oil, castor oil, soybean oil, coconut oil, palm oil, beeswax, montan wax, lanolin, squalane, silicone oil, etc. Activators such as alkylbenzene sulfonate, polyoxyalkylene alkyl sulfate, alkyl sulfate, alkane sulfonate, alkyl ethoxy carboxylate, succinic acid derivative, alkyl amine oxide,
Polymer compounds such as imidazoline type compounds, polyoxyethylene alkyl or alkenyl ethers, polyoxyethylene alkylphenyl ethers, higher fatty acid alkanolamides or alkylene oxide adducts thereof,
For example, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose,
Methyl cellulose, cationized cellulose, cationized polymer, polyvinylpyrrolidone, copolymer of vinylpyrrolidone and vinyl acetate, vinylpyrrolidone-vinyl acetate-
Alkylamino acrylate copolymer, lower alkyl half ester of methyl vinyl ether-maleic anhydride copolymer, vinyl acetate-crotonic acid copolymer, acrylic acid-acrylic acid ester-N-alkyl acrylamide copolymer, moisturizing agent, For example, glycerin, ethylene glycols, propylene glycols, sorbitol, maltitol, sodium pyrrolidonecarboxylate, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, glucose, hyaluronic acid, etc., amino acids such as glycine, serine or proline, lower, etc. Alcohol, water, antioxidants, ultraviolet absorbers, fragrances, dyes, pigments, pigments, preservatives, vitamins, hormones, deodorants, adhesives, anti-inflammatory agents may be mixed, but are not limited thereto. What No.

When the cosmetics of the present invention are used for aerosol type sprays, propane, butane, trichloromonofluoromethane, dichlorodifluoromethane,
Dichlorotetrafluoroethane, carbon dioxide, nitrogen gas,
A propellant such as LPG or dimethyl ether is also used.

The cosmetics of the present invention include skin cosmetics such as cleansing creams, cold creams, hand creams, powders, lotions, foundations, mascaras,
Eye shadows, lotions, lipsticks, nail polishes, sunscreens, hair-growth and dandruff shampoos for medicines or quasi drugs, and hair cosmetics such as shampoos, rinses, set lotions, hair sprays, permanent waves. It can be used for various purposes such as an agent, a mousse agent and a hair dye.

[0022]

The reactive organopolysiloxane used in the present invention has various molecular designs adapted to the inorganic powder to be treated and other components such as oil components to be incorporated into cosmetics because of the variety of synthetic raw materials. It is possible, and surface treatment characteristics and characteristics such as HLB can be easily imparted as desired. Therefore, the inorganic powder surface-treated with the above-mentioned reactive organopolysiloxane is blended in cosmetics to have excellent durability, water resistance, affinity with skin, gloss imparting property, water repellency, flexibility,
It exhibits not only water vapor permeability, gas permeability and lubricity, but also excellent dispersibility in oil, retention of filler, film forming property, product stability, and usability.

[0023]

The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited thereto. First, the evaluation method and the powder processing method will be described. The dispersibility, film-forming property, and usability evaluation tester actually applied the sample to the back of the hand, and sensory-evaluated each item according to the following criteria. (Dispersibility) ○: Uniform and excellent △: Some unevenness ×: There is unevenness (film forming property) ○: Spreads uniformly and well △: Slightly hard to spread ×: Hard to spread (usability) ○: Excellent spread △ : Slightly hard to spread X: Hard to spread The retention property evaluation sample of the filler was treated with a centrifuge at 5000 rpm for 1 hour,
The following criteria were evaluated. ◯: Separation or precipitation is not observed Δ: Oil phase or water phase separation is less than 5% ×: Oil phase or water phase separation is 5% or more Product stability evaluation sample is put in a sample container , 1 at 50 ℃ in a sealed state
After standing for a week, the following criteria were evaluated. ◯: Separation or precipitation is not seen Δ: Separation of oil phase or water phase is less than 5% ×: Separation of oil phase or water phase is 5% or more

Powder processing method 10% by weight of fine titanium oxide particles having an average particle diameter of 0.05 μm
To 95% isopropyl alcohol so that the reactive organopolysiloxane of the present invention represented by the following formulas (7) to (10) or one of the following formulas (11) to (13). 2% by weight of any of the conventional silicone compounds described above is added, mixed and stirred, and then 1
The volatile components were distilled off at 20 ° C. Reactive Organopolysiloxane of the Invention

[Chemical 5] Conventional silicone compound

[Chemical 6]

Examples 1 to 4, Comparative Examples 1 to 4 Oily foundations having the compositions shown in Table 1 were produced by the following method.

[Table 1] (Production method) Components a to g are mixed and pulverized, and components h to m are heated to 80 ° C.
After gradually adding this pulverized product into the oil phase dissolved in
Dispersed well. After adding the component n to this mixture, it was filled in a gold plate and cooled.

Examples 5-8, Comparative Examples 5-8 O / W type creams having the compositions shown in Table 2 were produced by the following method.

[Table 2] (Production method) Components j, l and m were mixed with stirring and kept at 80 ° C to obtain an aqueous phase. Separately from this, the remaining components were mixed and heated to 80 ° C. to obtain an oil phase part. A water phase part was added to the oil phase part to carry out preliminary emulsification, and the mixture was uniformly emulsified with a homomixer and then cooled to 30 ° C. to obtain a product.

Examples 9 to 12 and Comparative Examples 9 to 12 O / W emulsions having the compositions shown in Table 3 were produced by the method shown below.

[Table 3] (Production method) Components a to g were mixed with stirring to obtain an oil phase part. Separately from this, components i to l were mixed by stirring to obtain an aqueous phase part. After the oil phase part was uniformly dispersed with a homomixer, the water phase part was added to emulsify and finally the component h was added to obtain a product.

Examples 1 to 12 and Comparative Example 1 described above
Each of the above characteristics was evaluated using the products obtained in Examples 1 to 12 as samples. The results are shown in Table-4 to Table-6.

[Table 4] From the results shown in Table-4 to Table-6, the cosmetics containing the inorganic powder surface-treated with the reactive organopolysiloxane of the present invention showed dispersibility, film-forming property, usability, and filler retention property. And it is clear that the product stability is very good. On the other hand, the conventional cosmetics containing the powder treated with the silicone compound have insufficient properties.

[0029]

INDUSTRIAL APPLICABILITY As described in detail above, the inorganic powder treated with the reactive organopolysiloxane having the specific structure of the present invention has excellent durability, water resistance, skin compatibility, and Not only glossiness, water repellency, flexibility, water vapor permeability, gas permeability, lubricity but also excellent dispersibility in oil, retention of filler, film forming property, product stability, usability (extension) Sex) is also given. As described above, the cosmetic containing the surface-treated inorganic powder of the present invention has the above-mentioned excellent properties that could not be obtained by the conventional cosmetics, and depending on the purpose, a cleansing cream,
Cold creams, hand creams, powders, lotions, foundations, mascaras, eye shadows, lotions, lipsticks, nail polishes, sunscreen creams, skin cosmetics such as hair growth agents and dandruff shampoos for drugs or quasi drugs, and shampoos. , Rinse agent, set lotion, hair spray, permanent wave agent,
It can be suitably used as a hair cosmetic such as a mousse or a hair dye.

Claims (4)

[Claims] 1. A compound of the following formula directly bonded to a silicon atom in one molecule: -R ¹ -X (wherein R ¹ is a direct bond or has 1 to 20 carbon atoms).
Divalent a hydrocarbon radical, and X is an organic reactive functional group represented by represents a functional group having an organic reactive), the following ^{formula: -R 2 -Si (R 3)} 3-a - ( OR ⁴ ) _a (wherein R ² represents an alkylene group having 2 to 5 carbon atoms, R ³ and R ⁴ each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and a Represents an integer of 2 or 3) and a condensable silylalkyl group represented by the following formula: — (CH ₂ ) ₁ —O— (C ₂ H ₄ O) _m — (C ₃ H
₆ O) _n -R ⁵ (In the formula, R ⁵ represents a hydrogen atom, an acyl group or a monovalent hydrocarbon group, l represents 0 or a positive integer, and m and n represent an integer of 0 to 150. However, m + n is an integer of 1 to 150), and an inorganic powder for incorporation into cosmetics, which has been surface-treated with a reactive organopolysiloxane having at least one polyoxyalkylene group represented by the formula. 2. The following formula: [Wherein, R represents a hydrogen atom, a monovalent hydrocarbon group or a halogenated alkyl group independently of one another, Y represents the following formula: -R ¹ -X (wherein, R ¹ is a direct bond or C 1 -C Through 20
Represents a divalent hydrocarbon group, and X represents an organic-reactive functional group).
Z following ^{formula: -R 2 -Si (R 3)} 3-a - in (OR ⁴⁾ _a (wherein, R ² represents an alkylene group having 5 to 2 -C, R ³ and R ⁴ independently of one another Represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and a represents a condensable silylalkyl group represented by the formula: a represents an integer of 2 or 3, and Q represents the following formula:-(CH ₂ ) _{l -O- (C 2 H 4 O} ) m - (C 3 H
₆ O) _n -R ⁵ (In the formula, R ⁵ represents a hydrogen atom, an acyl group or a monovalent hydrocarbon group, l represents 0 or a positive integer, and m and n represent an integer of 0 to 150. Where m + n is an integer of 1 to 150), M represents the above-mentioned meaning of R, Y, Z or Q, o represents an integer of 0 to 500, and p,
q and r represent an integer of 0 to 200, provided that p
Is 0, M represents Y, and q and r are 1
Represents an integer of 0 or more, when q is 0, M represents the meaning of Z, and p and r represent an integer of 1 or more; when r is 0, M represents the meaning of Q, and p and q Represents an integer of 1 or more], which is an inorganic powder, which is surface-treated with a reactive organopolysiloxane for incorporation into a cosmetic. 3. The inorganic powder according to claim 2, which is surface-treated with a reactive organopolysiloxane in which R represents a monovalent hydrocarbon group or a fluoroalkyl group. 4. A cosmetic containing the inorganic powder according to any one of claims 1 to 3.