JPH0953021A - Silicone-treated powder and composition containing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-repellent powder having excellent water repellency and having a coating film capable of being peeled only under specified conditions and to provide a composition containing the same, therefore being excellent in water repellency and stability and exemplified by a paint or a cosmetic capable of being easily peeled from the substrate under specified conditions. SOLUTION: The surface of a powder is treated with a silicone mainly consisting of at least one kind of units represented by formula I: Q<n> (SiO3/2 )n (wherein Q<n> is an n-valent organic group; and (n) is an integer of 2-6) and terminated with a unit represented by formula II: (R<1> )3 SiO1/2 (wherein R<1> s, which may be the same or different from each other, are hydrocarbon groups or hydrocarbon groups in each of which at least part of the hydrogen atoms are substituted by chlorine atoms or bromine atoms), and the obtained treated powder is added to e.g. a paint composition or a cosmetic.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a silicone-treated powder and a composition containing the same, and more specifically to a water-repellent treated powder having excellent water repellency and further having a coating capable of being released only under specific conditions. The present invention relates to a body and a composition such as a paint, which is excellent in water repellency and stability by containing the body and which can be easily separated from an adherend under specific conditions.

[0002]

2. Description of the Related Art A technique of surface-treating a powder is a very important technique from the viewpoint of improving the properties of the powder surface and the stability of the entire composition containing the powder. Examples of such a treatment technique include a hydrophilization treatment such as a phosphate treatment, a water repellent treatment such as polyhydromethylsiloxane or fluorosilicone, and a water-dispersible hydrophobic treatment such as an acylated amino acid metal salt treatment. Among such powder treatment techniques, the water repellent treatment improves the stability of the powder in the composition by providing a film on the powder surface, and the system of the composition containing the treated powder is improved. This is a very important technique from the two viewpoints of improving the overall stability and shielding active sites on the powder which are expected to adversely affect other coexisting substances in the composition. Furthermore, in the field of using powder having a water-repellent treatment film, the treatment reaction of the water-repellent treatment agent used for the film surface treatment of the powder is reversible and only under specific conditions. In many cases, the property that the film is formed or removed and the film is not formed or removed under other conditions is often required.

However, when the above-mentioned conventional water repellent treatment agent is used, the coating film formed on the powder surface is either hard and brittle or soft and easy to be detached, which is considered from the practical point of view. If there is still a problem with water repellency, there was still room for improvement. Further, the coating treatment of the powder surface with the conventional water repellent treatment is an irreversible reaction, and the coating once formed is not detached, or even if it is reversible, the formed coating is easily detached. It was a thing.

Therefore, the film formed on the surface of the powder is flexible and hard to be removed, and is excellent in water repellency, and the film is formed reversibly so that the film is formed or released only under a specific condition. Development of a water repellent treatment agent that has the property of not forming or removing the coating film under the conditions, and surface treatment that is excellent in water repellency treated with such a water repellent treatment agent and that can only remove the coating film under specific conditions There has been a demand for a composition containing a powder and further this surface-treated powder, which is excellent in water repellency and stability and which can be easily separated from an adherend under specific conditions.

[0005]

SUMMARY OF THE INVENTION The present invention has been made from the above point of view, and a water-repellent treated powder having excellent water repellency and a coating capable of being released only under a specific condition, and the same. An object of the present invention is to provide a composition having excellent water repellency and stability, which can be easily separated from an adherend under specific conditions by containing the composition, such as paint and cosmetics.

[0006]

In order to solve the above-mentioned problems, the present inventors have proposed a water repellent treatment agent for powders,
The film formed on the surface of the powder has excellent water repellency, and further intensive research was conducted for a new material that can be released from the powder under specific conditions. The silicone having the bonded unit as a main constituent unit has the ability to form a strong and flexible coating having excellent water repellency on the surface of powders, and further has a solvent affinity only for a specific solvent. Further, it was found that the composition such as paint containing the surface-treated powders, cosmetics and the like has excellent water repellency and stability and can be easily separated from the adherend under a specific solvent. The present invention has been completed.

That is, the present invention is a silicone-treated powder surface-treated with silicone, wherein the silicone has the general formula (I): Q ⁿ (SiO _3/2 ) _n (where Q ⁿ is n-valent). Represents an organic group, and n represents any one of integers of 2 to 6) as a main constituent unit and has a terminal represented by the formula (II): (R ¹ ) ₃ SiO _{1 / 2} (provided that R ^{1 s} may be the same or different from each other and represent a hydrocarbon group or a hydrocarbon group in which at least a part of hydrogen atoms are substituted with chlorine atoms or bromine atoms). It is a silicone-treated powder that is a silicone blocked with a unit.

Here, in the above-mentioned silicone-treated powder of the present invention, the above silicone further has SiO ₂ units as a main constituent unit and a molar ratio of 3 to the unit represented by Q ⁿ (SiO _3/2 ) _n. It may be a silicone containing less than / 2. Further, n in the general formula (I) in the silicone is preferably 2, 3, or 4.

Further, as Q ⁿ of the general formula (I) in the silicone, specifically, 1) an alkylene group; 2)
Polymethylene group; 3) phenylene group; 4) arylene group; 5) the hydrogen atom of the groups of 1) to 4) above further comprises an alkyl group, a phenyl group, an aryl group, an alkylene group, a polymethylene group, a phenylene group and an arylene group. A group substituted with at least one kind of group; 6) at least one functional group of the group consisting of ether, thioether, ester, ketone, amide, imide, amine and imine in the structure of the groups 1) to 4). And a group containing 7) above 1) to.
A group in which the hydrogen atom of the group of 6) is substituted with a chlorine atom or a bromine atom; and R of the general formula (II)
Specific examples of ¹ include ^{one selected} from the group consisting of an alkyl group, a phenyl group, an aryl group, and a group in which at least a part of hydrogen atoms of these groups are substituted with a chlorine atom or a bromine atom.

Further, in the silicone of the above-mentioned silicone-treated powder, a silicone whose main constituent unit is a unit in which a divalent organic group containing a diamide of dicarboxylic acid is introduced as Q ⁿ into the general formula (I) is preferable, and further, A unit in which the main constituent unit of the silicone has a divalent organic group containing a dicarboxylic acid diamide as Q ^{n in the} general formula (I) and a dicarboxylic acid diamide as Q ^{n in the} general formula (I) 2 It is preferably composed of a unit in which a divalent organic group other than the valent organic group is introduced.

The composition weight ratio of silicone to powder in the silicone-treated powder of the present invention is 1:99 to 50:
It is preferably 50. In the silicone-treated powder of the present invention, other production methods can be adopted, but the production method characteristic of the silicone-treated powder of the present invention,
That is, it is represented by the general formula (I): Q ⁿ (SiO _3/2 ) _n (wherein Q ⁿ represents an n-valent organic group, and n represents any one of integers of 2 to 6). At least one of the units is a main constituent unit, and the terminal has the formula (II): (R ¹ ) ₃ SiO _1/2 (wherein R ¹ may be the same or different from each other, a hydrocarbon group, or Represents a hydrocarbon group in which at least a part of hydrogen atoms are substituted with chlorine atoms or bromine atoms.) A silicone capped with a unit represented by the formula (1) is dissolved in an organic solvent compatible with the unit, and the resulting solution is added. It is also possible to adopt a manufacturing method in which after the powder is dipped, the powder is taken out of the solution and the organic solvent is dried to form a coating film of the silicone on the surface of the powder.

[0012] The present invention also provides a paint composition containing the above-mentioned silicone-treated powder and a cosmetic containing the silicone-treated powder.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. First, the silicone used in the present invention will be described.

(1) Silicone Used in the Present Invention The silicone used in the cosmetic of the present invention basically comprises at least one of the Q ⁿ (SiO _3/2 ) _n units of the above-mentioned general formula (I) as a main constituent unit. And the terminal is blocked with the (R ¹ ) ₃ SiO _1/2 unit of the general formula (II). Further, in the present invention, a SiO ₂ unit can be further contained as the main constituent unit of the silicone, and the content of the SiO ₂ unit in this case is SiO ₂ /
The molar ratio of Q ⁿ (SiO _3/2 ) _n is (3/2) or less, particularly (1
/ 2) or less is preferable. (R ¹ ) ₃ SiO _1/2
The molar ratio of the unit to the Q ⁿ (SiO _3/2 ) _n unit and the SiO ₂ unit is not particularly limited.

In the silicone used in the present invention, specific examples of Q ⁿ in the above general formula (I): Q ⁿ (SiO _3/2 ) _n unit are 1) alkylene group; 2) polymethylene group; 3) phenylene. A group; 4) an arylene group; 5) a hydrogen atom of the group of 1) to 4) is at least one selected from the group consisting of an alkyl group, a phenyl group, an aryl group, an alkylene group, a polymethylene group, a phenylene group and an arylene group. A substituted group; 6) a group containing at least one functional group of the group consisting of ether, thioether, ester, ketone, amide, imide, amine and imine in the structure of the groups 1) to 4); and 7) At least one of the groups in which the hydrogen atom of the groups 1) to 6) is substituted with a chlorine atom or a bromine atom can be exemplified.

Further, in the silicone used in the present invention, ⁿ of Q ⁿ in the general formula (I) is 2 to 6 as described above.
Represents any of the integers. The divalent organic group in which ⁿ of Q ⁿ is 2 for Q ⁿ exemplified above is 1) an alkylene group, 2) a polymethylene group, 3) a phenylene group, 4).
An arylene group, 5) a group in which the hydrogen atom of the group of 1) to 4) is further substituted with an alkyl group or a phenyl group, 6) an ether, a thioether, an ester or a ketone in the structure of the group of 1) to 4). , A group containing at least one functional group of the group consisting of amide, imide, amine, and imine, and 7) a group in which the hydrogen atom of the groups 1) to 6) is substituted with a chlorine atom or a bromine atom. Is mentioned. Examples of the trivalent organic group in which n is 3 include the divalent organic groups (1) to 7) above.
Hydrogen atom, chlorine atom, or bromine atom of the group (1) is substituted with one selected from an alkylene group, an arylene group, a polymethylene group, and a phenylene group, and the hydrogen atom of these groups is a chlorine atom or a bromine atom. Examples thereof include groups substituted with atoms.

Similarly, in the above divalent organic group, increase the number of hydrogen atoms, chlorine atoms or bromine atoms substituted by divalent groups such as alkylene groups, arylene groups, polymethylene groups and phenylene groups to 2, 3, 4 For example, a tetravalent organic group having n = 4, a pentavalent organic group having n = 5, and a hexavalent organic group having n = 6 are obtained. In this way, an organic group in which n of Q ⁿ in the above general formula (I) is 2 to 6 is obtained. In the silicone used in the present invention, ⁿ of Q ⁿ is preferably 2, 3, 4 and more preferably 2 More preferable. This is Q ⁿ to express the nature of the Q ⁿ internal molecular - but must be placed in (silicon atomic silicon atom), in order that it is necessary that the bivalent or more valence This is because the cost increases with each increase. Further, as more preferable Q ⁿ , a divalent organic group containing a diamide of dicarboxylic acid can be mentioned. Considering such preferable conditions, the silicone preferably used in the present invention is a unit and a general formula in which the main constituent unit is a divalent organic group containing a diamide of dicarboxylic acid as Q ^{n in the} general formula (I). (I)
Is a silicone composed of a unit in which a divalent organic group other than the divalent organic group containing a diamide of dicarboxylic acid is introduced as Q ⁿ .

The main constituent unit of silicone used in the present invention has the above general formula (I) containing such Q ⁿ as a constituent element.
Consists of at least one of the units
A more specific example of Q ⁿ is as follows. In the formulas below, a, b, c, d, e and f each represent an integer of 1 or more. Q ² (divalent organic group):

[0019]

## STR1 ## _{- (CH 2) a - ...} (1), -CH (CH 3) - (CH 2) a - ... (2), - (CH 2) a -C (C 2 H 5) (CH _{3) - ... (3),} -C 6 H 4 - ... (4), - (CH 2) a -C 6 H 4 - (CH 2 Cl) - ... (5), -CH (CH 3) -C _{6 H 4 - (CH 2)} a - ... (6), - (CH 2) a -S- (CH 2) b - ... (7), - (CH 2) a -S-C 6 H 4 - ... _{(8), -CH (CH 3} ) -S- (CH 2) a - ... (9)

[0020]

Embedded image

Q ³ (trivalent organic group):

[0022]

Embedded image

Q ⁴ (tetravalent organic group):

[0024]

Embedded image

[0025] Then the general formula (II) (R ¹⁾ is a ₃ SiO _1/2 units, R ¹ of the unit, which may be the being the same or different, a hydrocarbon group, or hydrogen At least a part of the atoms represents a hydrocarbon group substituted with a chlorine atom or a bromine atom, preferably an alkyl group, a phenyl group, an aryl group and at least a part of the hydrogen atoms of these groups are a chlorine atom or a bromine atom. A group selected from groups substituted with, and specific examples include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group,
sec-butyl group, alkyl group such as tert-butyl group; phenyl group; aryl group; or a group in which at least a part of hydrogen atoms of these groups are substituted with chlorine atom or bromine atom, and the like, and preferably Alkyl groups (not substituted) are mentioned.

An example of the network structure of the silicone used in the present invention composed of the above units is shown by the ⁿ of Q ⁿ .
Is 2 or a divalent organic group is shown below as an example.

[0027]

Embedded image

(In the formula 5, Q ² represents a divalent organic group. R ^{1 s} may be the same or different, and a hydrocarbon group or at least a part of hydrogen atoms is chlorine. Represents a hydrocarbon group substituted with an atom or a bromine atom.)

Specific examples of the silicone used in the present invention are as follows. A) A unit of [(CH ₃ ) ₃ SiO _1/2 ] and [O _3/2 S
iQ ² SiO _3/2 ] (wherein Q ² represents a divalent organic group represented by — (CH ₂ ) ₃ —) and is a silicone.

(B) [(CH ₃ ) ₃ SiO _1/2 ] unit, [O _3/2 SiQ ² SiO _3/2 ] (wherein Q ² is a divalent organic group represented by the following formula (1a)) Unit and [O _3/2 SiQ ² 'SiO _3/2 ] (where Q ² ' is-(C
It represents a divalent organic group represented by _{- H 2) 2 S (CH} 2) 3. ) Silicone unit.

[0031]

[Chemical 6]

C) [(C ₂ H ₅ ) ₃ SiO _1/2 ] unit, [SiO ₂ ] unit and [O _3/2 SiQ ² SiO]
_3/2 ] (wherein Q ² represents a divalent organic group represented by the formula (2a)) unit.

[0033]

[Chemical 7]

D) [(C ₆ H ₅ ) (CH ₃ ) ₂ SiO _1/2 ]
And a unit of [(O _3/2 Si) ₃ Q ³ ] (wherein Q ³ represents a trivalent organic group represented by the formula (3a)).

[0035]

Embedded image

[0036] e) units of _{[(C 3 H 7) 3} SiO 1/2], units and _{[SiO 2] [(O 3} /2 Si) 3 Q 3]
(However, Q ³ represents a trivalent organic group represented by the formula (4a)).

[0037]

Embedded image

F) [{(CH_Three)_ThreeC} {CH_Three｝₂SiO
_1/2] Unit and [(O_3/2Si) _ThreeQ^Three] (However, Q
^ThreeRepresents a trivalent organic group represented by the formula (5a). ) Yu
Silicone made of knit.

[0039]

Embedded image

G) [(CH ₃ ) ₃ SiO _1/2 ] unit, [SiO ₂ ] unit, [O _3/2 SiQ ² Si
O _3/2 ] (provided that Q ² represents a divalent organic group represented by — (CH ₂ ) ₂ S (CH ₂ ) ₃ —) and [(O
_3/2 Si) ₄ Q ⁴ ] (wherein Q ⁴ is ⁴ represented by the formula (6a))
Represents a valent organic group. ) Silicone unit.

[0041]

Embedded image

H) A unit of [(CH ₃ ) ₃ SiO _1/2 ], [(O _3/2 Si) ₄ Q ⁴ ] (wherein Q ⁴ is a tetravalent organic group represented by the formula (7a)) Unit) and [Si
Silicone consisting of a unit of O ₂ ].

[0043]

[Chemical 12]

Re) [(CH_Three)_ThreeSiO_1/2] Unit
And [(O_3/2Si)_FourQ^Four] (However, Q ^FourIs in equation (8a)
It represents the tetravalent organic group shown. ) Unit
Recorn.

[0045]

Embedded image

N) [(CH ₃ ) ₃ SiO _1/2 ] unit, [O _3/2 SiQ ² SiO _3/2 ] (where Q ² is-(C
H ₂ ) ₃ −. ) Unit and [O _3/2 SiQ ² 'S
iO _3/2 ] (wherein Q ² 'represents a divalent organic group represented by the formula (9a)).

[0047]

Embedded image

Le) [(CH ₃ ) ₃ SiO _1/2 ] unit, [O _3/2 SiQ ² SiO _3/2 ] (where Q ² is-(C
H ₂ ) ₂ S (CH ₂ ) ₃ −. ) Unit and [O
_3/2 SiQ ² 'SiO _3/2 ] (wherein Q ² ' is expressed by the formula (9
It represents a divalent organic group represented by a). ) Silicone unit.

Wo) [(CH_Three)_ThreeSiO_1/2] Unit
To, [O_3/2SiQ²SiO_3/2] (However, Q ² Is the above formula
It represents a divalent organic group represented by (1a). ) Unit
And [O_{3 / 2}SiQ²'SiO_3/2] (However, Q²'Is before
It represents a divalent organic group represented by the formula (9a). ) Uni
And [SiO₂] Silico made of units
N.

Next, a method for producing the silicone used in the present invention will be described. (2) Method for producing silicone In order to produce the silicone used in the present invention, basically, formula (III): Q ⁿ [Si (X) ₃ ] _n (where Q ⁿ is an n-valent organic compound). Group, and n represents any one of integers from 2 to 6. X may be the same or different from each other and represents a hydrolyzable group.) At least a hydrolyzable silicon compound represented by After hydrolytic polycondensation of one of the compounds, the compound of the general formula (IV): (R ¹ ) ₃ SiX (wherein R ¹ may be the same or different from each other, is a hydrocarbon group or a hydrogen atom). Represents a hydrocarbon group at least a part of which is substituted with a chlorine atom or a bromine atom, and X represents a hydrolyzable group) and / or the general formula (V): (R ¹ ) ₃ SiOSi (R ¹ ) ₃ (provided that R ¹ is the same as R ¹ in the general formula (IV)). A production method of reacting as a chaining agent to block the end of the polycondensate may be adopted.

In order to produce the above silicone used in the present invention by such a method, first, one or two hydrolyzable silicon compounds Q ⁿ [Si (X) ₃ ] _n of the general formula (III) are used. Water is added to the above to perform hydrolysis polycondensation. in this case,
If necessary, a silicon compound Si (X) ₄ (wherein X may be the same or different from each other and represents a hydrolyzable group) is mixed, and co-hydrolyzed with the hydrolyzable silicon compound. Condensation may be performed. The amount of water added depends on the hydrolyzable group X of the silicon compound used in order to control the progress of the reaction.
It is preferably an amount equal to or less than the theoretical amount necessary for hydrolyzing the.

At this time, it is preferable to use an organic solvent in order to allow the reaction to proceed uniformly. The organic solvent is not particularly limited as long as it can dissolve the silicon compound used in the reaction. The reaction temperature is preferably 0 to 80 ° C. If it is too low, coagulation of the solvent occurs, and if it is too high, extreme evaporation of the solvent occurs and the reaction progresses unevenly. Further, in order to accelerate the progress of the reaction, it is preferable to use a base and / or an acid as a catalyst. The addition amount of the base and / or the acid catalyst is preferably 5 mol% or less of the silicon compound used in the reaction.

An example of the reaction formula of this hydrolysis polycondensation is shown below.
5 and an example of the network structure of the polycondensate obtained is shown in Chemical formula 16.

[0054]

Embedded image

(However, Q ² in Chemical Formula 15 represents a divalent organic group.)

[0056]

Embedded image

(However, Q ² in the chemical formula 16 represents a divalent organic group.) The details of the materials used in the above hydrolysis polycondensation step are as follows. The hydrolyzable silicon compound of the general formula (III) Q ⁿ [Si (X)
₃ ] _n : Synthesized by a known organic reaction of a known silicon compound. For example, alkoxysilane having an amino group, chlorosilane [NH ₂ C ₃ H ₆ Si (OR) ₃ , NH ₂ C ₃ H ₆ C
[ ₃ ] etc. with an acid derivative such as acid chloride or anhydride; addition reaction of hydrogensilane or mercaptosilane to a compound having an unsaturated bond; alkoxysilane compound or chlorosilane compound and Grignard reagent or organolithium compound It is synthesized by the reaction of. This hydrolyzable silicon compound of the general formula (III) Q ⁿ [Si
For Q ⁿ in the (X) _{3] n,} it is the same as Q ⁿ in the above general formula (I). In general formula (III), X is not particularly limited as long as it is a hydrolyzable group,
They may be the same or different from each other.

At the time of producing the silicone used in the present invention, at least one of the hydrolyzable silicon compounds is used as a raw material. Preferably, the hydrolyzable silicon compound is a dicarboxylic acid represented by the general formula (III) as Q ^n. Hydrolyzable Silicon Compound Introducing Divalent Organic Group Containing Diamide and Hydrolysis Introducing Divalent Organic Group Other than Divalent Organic Group Containing Diamide of Dicarboxylic Acid as Q ^{n in} Formula (III) A silicon compound is used in combination.

Silicon compound Si (X) ₄ : added to adjust the hardness of silicone. The higher the amount added, the harder the silicone, and the lower the amount, the softer it becomes. Xs in the general formula are not particularly limited as long as they are hydrolyzable groups, and they may be the same or different. Specific examples of such a silicon compound include silicon tetrachloride, tetramethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, tetraisopropoxysilane and the like, preferably silicon tetrachloride, tetramethoxysilane and tetraethoxysilane. .

Organic solvent: not particularly limited as long as it can dissolve the above-mentioned two kinds of silicon compounds, water, catalysts, etc., alcohols such as methyl alcohol, ethyl alcohol, isopropyl alcohol; ketones such as acetone, methyl ethyl ketone; Cellosolves such as methyl cellosolve and ethyl cellosolve; tetrahydroxyfuran; dimethylsulfoxide and the like.

Base and / or acid catalysts: inorganic acids such as hydrochloric acid and nitric acid; organic acids such as acetic acid and citric acid; sodium hydroxide,
Inorganic bases such as aqueous ammonia; organic bases such as amines and morpholines; basic group-containing silanes such as 3-aminoalkoxysilanes, preferably bases, especially amino substituents,
A silane containing a basic group such as 4,5-dihydroimidazole substituent, for example, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-
Examples include (4,5-dihydroimidazole) propyltriethoxysilane and N-β- (aminoethyl) -γ-aminopropyltrimethoxysilane.

Then, after polycondensation reaction was carried out for a certain period of time,
Stabilize the polycondensate by blocking the reaction end of the obtained polycondensate
In order to take it out, siliconization of general formula (IV) is performed as an end-capping agent.
Compound (R¹)_ThreeSiX and / or silicon compound of general formula (V)
Thing (R¹)_ThreeSiOSi (R¹) _ThreeIs added and reacted. This
At this time, the end-capping reaction is promoted by promoting hydrolysis of the end-capping agent.
Add water and acid catalyst together to facilitate the process.
You. The amount of water added is not particularly limited,
Add more than theoretical amount needed to hydrolyze chain agent
Is desirable. The addition amount of the acid catalyst is represented by the general formula (IV)
And / or 2 mol% or more of the (V) endblocker is preferred.
Yes.

The end-capping step is carried out under stirring conditions in order to allow the reaction to proceed uniformly. The reaction time is preferably 4 to 20 hours. After completion of the reaction, if the polycondensate undergoes phase separation, decantation is carried out. If the phase separation is not carried out, the intended product is taken out by a method such as solvent removal or freeze drying.

An example of the terminal blocking state in the network structure of silicone obtained by the reaction of the above polycondensate and the terminal blocking agent is shown below.

[0065]

Embedded image (However, in Chemical Formula 17 Q ² represents a divalent organic group. Further, R ¹
May be the same as or different from each other, and represent a hydrocarbon group or a hydrocarbon group in which at least a part of hydrogen atoms are substituted with chlorine atoms or bromine atoms. ) The details of the materials used in the above end-capping step are as follows. (R ¹ ) ₃ SiX of the general formula (IV): the above general formula (IV)
R ¹ may be the same or different from each other,
A hydrocarbon group or a hydrocarbon group in which at least a part of hydrogen atoms is replaced by a chlorine atom or a bromine atom, preferably an alkyl group, a phenyl group, an aryl group and at least a part of hydrogen atoms of these groups. Is a group selected from a group substituted with a chlorine atom or a bromine atom, and examples thereof include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, and n.
An alkyl group such as a butyl group, a sec-butyl group, a tert-butyl group; a phenyl group; an aryl group; or a group in which at least a part of hydrogen atoms of these groups are substituted with a chlorine atom or a bromine atom. And preferably an alkyl group (not substituted). In addition, the above general formula (IV)
In the above, X is not particularly limited as long as it is a hydrolyzable group,
Preferable examples include an alkoxy group, a halogen atom, an alkoxyalkoxy group and the like. Specific examples of such a compound include trimethylchlorosilane, triethylchlorosilane, tert-butyldimethylchlorosilane, phenyldimethylchlorosilane, trimethylmethoxysilane, and trimethylethoxysilane.

(R ¹ ) ₃ SiOSi (R ¹ ) of the general formula (V)
_3: R ¹ in the general formula (V) is the same as R ¹ in the general formula (IV), as such compounds, specifically, hexamethyldisiloxane, hexaethyldisiloxane, Examples include hexapropyldisiloxane and hexaphenyldisiloxane.

Acid catalysts: Specifically, inorganic acids such as hydrochloric acid and nitric acid; organic acids such as acetic acid and citric acid; preferably volatile acids such as hydrochloric acid, nitric acid and acetic acid.

(3) Silicone-treated powder of the present invention The silicone-treated powder of the present invention is a silicone-treated powder which has been surface-treated with one or more of the above silicones, and the surface of the powder has the above-mentioned silicone. The water-repellent coating is formed. The silicone water-repellent coating formed on the surface of the powder has excellent water repellency and is strong and flexible, so that when it is incorporated into a composition such as paint or cosmetics, It has the effect of improving stability. Furthermore, since the water-repellent coating of the silicone-treated powder of the present invention has a solvent affinity only for a specific solvent such as hydrocarbon, it can be easily desorbed by using such a solvent. The use of the solvent makes it possible to easily remove compositions such as paints and cosmetics containing the silicone-treated powder of the present invention from adherends as needed. As such a specific solvent, linear, branched or cyclic silicones having a relatively small molecular weight (about 5 or less), hydrocarbons having a relatively short carbon chain such as normal hexane and petroleum ether,
Examples thereof include halogenated hydrocarbons.

The powder used in the silicone-treated powder of the present invention is not particularly limited in kind, shape, size and the like as long as it is a powder, but a powder usually added to various compositions in the form of powder. Preferable examples thereof include powders that are blended in compositions such as paint compositions and cosmetics. Specific examples of such powder include quinacridone pigment, phthalocyanine pigment, titanium oxide, zinc oxide, iron oxide, yellow iron oxide,
Pigment of lead oxide, chromium hydroxide, chromium oxide, ultramarine blue, dark blue, black iron oxide, carbon black, silica gel, calcium silicate, aluminum oxide, calcium carbonate, mica, sericite, talc, mica titania, bentonite, montmorillonite, tar Examples thereof include dyes.

In the silicone-treated powder of the present invention, the composition weight ratio of the silicone constituting the surface coating and the powder is preferably 1:99 to 50:50, and more preferably 5:95 to 20 :. It is more preferably 80.

The method for producing the silicone-treated powder of the present invention is as follows. One or more of the above-mentioned powders may be surface-treated with the above-mentioned silicone according to a commonly used method. A method of mechanochemically coating the powder with silicone, a method of uniformly coating the surface of the powder with silicone, and then baking this.
A phase separation method such as coacervation, a surface treatment method such as an in-liquid drying method and the like can be mentioned. Further, since the above-mentioned silicone used for forming a film in the present invention is compatible only with a specific organic solvent such as volatile hydrocarbons or volatile silicones as described above, these are used as a solvent. It is also possible to adopt a manufacturing method in which the powder surface is coated with an organic solvent solution of silicone by dipping the powder into a silicone solution, and then the solvent is removed by a method such as drying. It is characteristic in the present invention.

(4) Paint Composition of the Present Invention The paint composition of the present invention contains one or more of the above-mentioned silicone-treated powders. Excellent water repellency and stability are imparted to the paint composition of the present invention by incorporating the above-mentioned silicone-treated powder having a silicone coating having excellent water repellency. Furthermore, the silicone coating of the silicone-treated powder used in the present invention has flexibility, and this flexibility imparts good adhesiveness to the paint composition of the present invention. In addition, the silicone coating of the above-mentioned silicone-treated powder can be easily desorbed by using a specific solvent, which makes it easy to desorb the paint composition of the present invention from the adherend by using the specific solvent. is there.

A suitable blending amount of the above-mentioned silicone-treated powder in the paint composition of the present invention is 1 to 60% by weight, and more preferably 10 to 60% by weight based on the total amount of the paint composition.
40% by weight. As the paint composition of the present invention,
There is no particular limitation as long as it is a paint composition which usually contains powder. These paint compositions can be produced in the same manner as in ordinary paint compositions, except that the silicone-treated powder is preferably blended in the above blending amount range. Further, the paint composition of the present invention may contain optional components usually used in paint compositions other than the silicone. Examples of such optional components include film-form preparations such as acrylic resins, solvents, plasticizers and the like. However, as the solvent, it is preferable to avoid a solvent that can dissolve the silicone.

(5) Cosmetics of the Present Invention The cosmetics of the present invention include one or two of the above silicone-treated powders.
Contains more than one species. By blending the above silicone-treated powder, the cosmetic of the present invention is provided with excellent water repellency and stability. This is because the silicone coating of the above-mentioned silicone-treated powder that is added to the cosmetic of the present invention has excellent water repellency. Furthermore, since the silicone coating of the silicone-treated powder used in the present invention has flexibility, it is possible to obtain a cosmetic having good adhesion to the skin and hair and good adhesion by incorporating this into a cosmetic. Become. Further, the excellent water repellency, flexibility and the like of the silicone coating of such a silicone-treated powder act comprehensively to give the cosmetic composition of the present invention a long-lasting makeup property.

The blending amount of the above-mentioned silicone-treated powder in the cosmetic of the present invention may be in accordance with the blending amount of powder in a usual powder-blending cosmetic, and 1 to 100% by weight is suitable,
It is preferably about 20 to 80% by weight. The dosage form of the cosmetic of the present invention is not particularly limited as long as it is a cosmetic that usually contains powder, for example, lip color, cheek color, eye color, mascara, eyeliner, pack material,
Foundations, pressed powders, loose powders, undermakeups and the like can be mentioned. These cosmetics can be produced in the same manner as in ordinary cosmetics, except that the above-mentioned silicone-treated powder is preferably blended in the above blending amount range.

In addition to the above silicone-treated powder, the cosmetics of the present invention include hydrocarbons such as liquid paraffin, petrolatum and squalane, which are usually applied to cosmetics, isopropyl myristate (IPM) and synthetic compounds. Esters such as gay wax, jojoba oil, carnauba wax, animal and vegetable oils such as olive oil and beef tallow, higher alcohols such as cetanol and stearyl alcohol, higher fatty acids such as stearic acid and oleic acid, sodium lauryl sulfate, alkyl sulfosuccinate Anionic surfactants such as 4
Cationic surfactants such as primary alkylamine salts, fatty acid monoglycerides, nonionic surfactants such as pooxyethylene hydrogenated castor oil, surfactants such as amphoteric surfactants such as alkyl betaines, and polyvalent compounds such as glycerin and propylene glycol Alcohols, lower alcohols such as ethanol and propanol, preservatives such as parabens and chlorhexidine gluconate, ultraviolet absorbers such as paraaminobenzoic acid derivatives and benzophenone derivatives, antioxidants such as vitamin E and butylhydroxytoluene, Gum arabic, thickeners such as carboxyvinyl polymer, moisturizers such as polyethylene glycol, pH of citrate, acetate, etc.
Regulators, fragrances, pigments, etc., hyaluronic acid, placenta extracts, ginseng extracts, sterol glycosides, and other medicinal components according to various purposes are appropriately selected and mixed. Further, in the range that does not impair the effects of the present invention, a normal powder which has not been subjected to a surface treatment or the like and a powder which has been subjected to a conventional polymethyssiloxane treatment or a fluoroalkyl silicone treatment may be appropriately blended.

[0077]

Embodiments of the present invention will be described below. First, a production example of the silicone used in the present invention will be described together with a production example of the silicon compound Q ⁿ [Si (X) ₃ ] _n of the above general formula (III). <Production Example of ^Qn [Si (X) ₃ ] _n >

[0078]

[Production Example 1] 70.2 g of allyltrichlorosilane and 54.2 g of monohydrogentrichlorosilane were placed in a pressure-resistant bottle type reaction vessel and mixed. Next, chloroplatinic acid H ₂ Pt
After Cl ₆ .6H ₂ O was heated in tetrahydrofuran and this solution corresponding to 0.2 mmol of platinum was added to the above mixed solution, the reaction vessel was heated at 80 ° C. for 4 hours. Filtration and fractional distillation were performed to remove tetrahydrofuran and chloroplatinic acid to obtain a transparent liquid. IR, ¹ H-NMR, ¹³ C-N
When MR and ²⁹ Si-NMR measurements were performed, it was confirmed that this liquid was a compound represented by the formula (1b).

[0079]

Embedded image Cl ₃ Si (CH ₂ ) ₃ SiCl ₃ ... (1b)

[0080]

[Production Example 2] 49.3 g of diallyl terephthalate was placed in a three-necked flask equipped with a reflux condenser, a stirrer and a gas inlet tube.
-Mercaptotrimethoxysilane 78.6 g and benzene 450 ml were taken and mixed with stirring. Furthermore, to this solution, 0.5 g of azobisisobutyronitrile was added to 5 parts of benzene.
A solution dissolved in 0 ml was added and mixed with stirring. While continuing to stir, bubbling dry nitrogen gas at room temperature 1
After the reaction was carried out for a period of time, it was heated and refluxed at the boiling point of benzene for 24 hours to complete the reaction. Benzene was removed by a rotary evaporator to obtain a viscous liquid. IR, ¹ H-N
When MR, ¹³ C-NMR, and ²⁹ Si-NMR measurements were performed, it was confirmed that this liquid was a compound represented by the formula (2b).

[0081]

Embedded image

[0082]

[Production Example 3] Vinyltrimethoxysilane 44.5 was placed in a three-necked flask equipped with a reflux condenser, a stirrer and a gas inlet tube.
g, 58.9 g of 3-mercaptotrimethoxysilane and 400 ml of benzene were taken and mixed with stirring. Furthermore, 0.5 g of azobisisobutyronitrile was added to benzene 5 in this solution.
A solution dissolved in 0 ml was added and mixed with stirring. While continuing to stir, bubbling dry nitrogen gas at room temperature 1
After the reaction was carried out for a period of time, it was heated and refluxed at the boiling point of benzene for 24 hours to complete the reaction. Benzene was removed by a rotary evaporator to obtain a viscous liquid. IR, ¹ H-N
When MR, ¹³ C-NMR, and ²⁹ Si-NMR measurements were performed, it was confirmed that this liquid was a compound represented by the formula (3b).

[0083]

Embedded image (CH ₃ O) ₃ Si (CH ₂ ) ₂ S (CH ₂ ) ₃ Si (OCH ₃ ) ₃ (3b)

[0084]

[Production Example 4] 110.7 g of 3-aminopropyltriethoxysilane, 400 ml of diethyl ether, and 100 ml of triethylamine were placed in a three-necked flask equipped with a reflux condenser, a stirrer, and a gas introduction tube, and mixed with stirring while cooling with ice.
Further, 45.3 g of 3-butenoyl chloride was added to 100 ml of diethyl ether while stirring with ice cooling.
The solution dissolved in 1 was dropped. After the dropping, stirring was continued for another hour. The white precipitate formed was filtered off, and then diethyl ether and triethylamine were removed by a rotary evaporator to obtain a viscous liquid.

The above liquid 82.
7 g, monohydrogentriethoxysilane 49.3
g and mixed. Next, chloroplatinic acid H ₂ PtCl ₆・ 6H
₂ O was heated in tetrahydrofuran and this solution corresponding to 0.2 mmol platinum was added to the above mixed solution and then the reaction vessel was heated at 80 ° C. for 4 hours. Filtration and fractional distillation were performed to remove tetrahydrofuran and chloroplatinic acid to obtain a transparent liquid. IR, ¹ H-NMR, ¹³ C-NMR, ²⁹ S
As a result of i-NMR measurement, this liquid was found to have the formula (4b).
It was confirmed that the compound was represented by

[0086]

[Chemical 21]

[0087]

[Production Example 5] Glycerin tri-1 was placed in a pressure-resistant bottle type reaction vessel.
177.3 g of 0-undecenoate and 110.0 g of monohydrogentrimethoxysilane were taken and mixed. Then, chloroplatinic acid H ₂ PtCl ₆ .6H ₂ O was heated in tetrahydrofuran, and this solution corresponding to 0.2 mmol of platinum was added to the above mixed solution, and then the reaction vessel was heated at 80 ° C. for 4 hours. . Filtration and fractional distillation were performed to remove tetrahydrofuran and chloroplatinic acid to obtain a transparent liquid. IR, ¹ H
By -NMR, ¹³ C-NMR, and ²⁹ Si-NMR measurements, it was confirmed that this liquid was a compound represented by the formula (5b).

[0088]

Embedded image

[0089]

[Production Example 6] 1,3,4-trivinylcyclohexane 48.7 g, 3-mercaptotris (β-methoxymethoxy) silane 257.8 g, and benzene were placed in a three-necked flask equipped with a reflux condenser, a stirrer, and a gas inlet tube. 800 ml was taken and mixed by stirring. Further, a solution prepared by dissolving 0.8 g of azobisisobutyronitrile in 100 ml of benzene was added to this solution, and the mixture was stirred and mixed. After bubbling with dry nitrogen gas at room temperature for 1 hour while continuing stirring, the mixture was heated to reflux at the boiling point of benzene for 24 hours to complete the reaction. Benzene was removed by a rotary evaporator to obtain a viscous liquid. IR, ¹ H-NMR, ¹³ C-NM
When R, ²⁹ Si-NMR measurement was performed, it was confirmed that this liquid was a compound represented by the formula (6b).

[0090]

Embedded image

[0091]

[Production Example 7] 57.9 g of 3-aminopropyltrichlorosilane, 320 ml of diethyl ether and 80 ml of triethylamine were placed in a three-necked flask equipped with a reflux condenser, a stirrer and a gas inlet tube, and the mixture was stirred and mixed while cooling with ice. Further, a solution prepared by dissolving 26.8 g of trimesoyl chloride in 100 ml of diethyl ether was added dropwise to this solution while continuing stirring with ice cooling. After the dropping, stirring was continued for another hour. After the generated white precipitate was filtered off, diethyl ether and triethylamine were removed by a rotary evaporator to obtain a white solid. IR, ¹ H-NMR, ¹³ C-NM
When R, ²⁹ Si-NMR measurement was performed, it was confirmed that this solid was a compound represented by the formula (7b).

[0092]

Embedded image

[0093]

[Production Example 8] 3,3′-diaminobenzidine 64. was added to a three-necked flask equipped with a reflux condenser, a stirrer and a gas inlet tube.
3 g, 900 ml of tetrahydrofuran and 200 ml of triethylamine were taken and mixed with stirring while cooling with ice. Further, 108.6 g of acryloyl chloride was added to 300 ml of tetrahydrofuran in this solution while continuing stirring with ice cooling.
Was added dropwise. After the dropping, stirring was continued for another hour. The white precipitate thus formed was filtered off, and then tetrahydrofuran triethylamine was removed by a rotary evaporator to obtain a white solid.

The solid 86.
1 g, monohydrogentrimethoxysilane 97.8
g and mixed. Next, chloroplatinic acid H ₂ PtCl ₆・ 6H
₂ O was heated in tetrahydrofuran and this solution corresponding to 0.2 mmol platinum was added to the above mixed solution and then the reaction vessel was heated at 80 ° C. for 4 hours. Filtration and fractional distillation were performed to remove tetrahydrofuran and chloroplatinic acid to obtain a white solid. IR, ¹ H-NMR, ¹³ C-NMR, ²⁹ S
As a result of i-NMR measurement, this solid was found to have the formula (8b).
It was confirmed that the compound was represented by

[0095]

Embedded image

[0096]

[Production Example 9] Pentaerythritol tetramethacrylate (81.7 g), 3-mercaptotriethoxysilane (190.7 g) and benzene (800 ml) were placed in a three-necked flask equipped with a reflux condenser, a stirrer and a gas inlet tube, and mixed with stirring. Further, to this solution, a solution prepared by dissolving 0.5 g of azobisisobutyronitrile in 100 ml of benzene was added and mixed with stirring. After bubbling with dry nitrogen gas at room temperature for 1 hour while continuing stirring, the mixture was heated to reflux at the boiling point of benzene for 24 hours to complete the reaction.
Benzene was removed by a rotary evaporator to obtain a viscous liquid. IR, ¹ H-NMR, ¹³ C-NMR, ²⁹ Si
-By NMR measurement, it was confirmed that this liquid was a compound represented by the formula (9b).

[0097]

[Chemical formula 26]

[0098]

[Production Example 10] 27.6 g of glycerol-1,3-diallyl ether, 200 ml of tetrahydrofuran and 50 ml of triethylamine were placed in a three-necked flask equipped with a reflux condenser, a stirrer and a gas introduction tube, and the mixture was stirred and mixed while cooling with ice. Further, 14.6 g of adipoyl chloride was added to 100 parts of tetrahydrofuran while stirring with ice cooling.
The solution dissolved in ml was added dropwise. After the dropping, stirring was continued for another hour. The white precipitate formed was filtered off, and then diethyl ether and triethylamine were removed by a rotary evaporator to obtain a viscous liquid.

The above liquid 28.
2 g, monohydrogentrichlorocysilane 54.2
g and mixed. Next, chloroplatinic acid H ₂ PtCl ₆・ 6
H ₂ O was heated in tetrahydrofuran and this solution corresponding to 0.2 mmol platinum was added to the above mixed solution and then the reaction vessel was heated at 80 ° C. for 4 hours. Fractional distillation was performed to remove tetrahydrofuran and chloroplatinic acid to obtain a transparent liquid. IR, ¹ H-NMR, ¹³ C-NMR, ²⁹ Si-N
When MR measurement was performed, it was confirmed that this liquid was a compound represented by the formula (10b).

[0100]

Embedded image

[0101]

[Production Example 11] Reflux condenser, stirrer and gas inlet pipe
3-aminopropyltrimethoxy in a 3-necked flask equipped with
107.6 g of silane, 600 ml of tetrahydrofuran,
Take 200 ml of triethylamine and stir mix while cooling with ice.
did. Further, while continuing to stir on ice,
60.9 g of phthalic acid chloride is added to tetrahydrofuran 20
A solution dissolved in 0 ml was added dropwise. 1 hour after dropping
Stirring was continued. After filtering off the white precipitate formed,
Tetrahydrofuran and triethyl with a Lee evaporator
The amine was removed to give a white solid. IR,¹ H-NM
R,¹³C-NMR, ²⁹Where the Si-NMR measurement was performed
The solid is a compound represented by the formula (11b).
Was confirmed.

[0102]

Embedded image

[0103]

[Production Example 12] 96.5 g of 3-aminopropyltrichlorocysilane, 500 ml of diethyl ether and 150 ml of triethylamine were placed in a three-necked flask equipped with a reflux condenser, a stirrer and a gas inlet tube, and the mixture was stirred and mixed while cooling with ice. Further, while continuing ice-cooling stirring, 50.8 g of isophthalic acid chloride was added to 150 ml of diethyl ether in this solution.
The solution dissolved in 1 was dropped. After the dropping, stirring was continued for another hour. After the generated white precipitate was filtered off, diethyl ether and triethylamine were removed by a rotary evaporator to obtain a white solid. IR, ¹ H-NMR, ¹³ C
When -NMR and ²⁹ Si-NMR measurements were performed, it was confirmed that this solid was the compound represented by (12b).

[0104]

[Chemical 29]

<Example of Silicone Production>

[0106]

[Production Example 13] 64.0 g of the silicon compound of Production Example 1 and 150 ml of methyl ethyl ketone were placed in a three-necked flask equipped with a condenser and a stirrer and mixed and dissolved. A solution of 9.0 g of water in 50 ml of methyl ethyl ketone was added to this solution while continuing stirring. After the addition is complete, continue stirring 4
It was left at 0 ° C. for 30 minutes. A solution consisting of 74.8 g of trimethylchlorosilane, 40.5 g of water, 100 ml of methyl ethyl ketone and 1.3 ml of concentrated hydrochloric acid was added to this mixed solution, and the mixture was allowed to stand at 40 ° C. for 4 hours while continuing stirring.
After completion of the reaction, the system was separated into two phases, so the solvent phase was removed by decantation, further washed with a 5% sodium hydrogen carbonate solution and water, the water was removed again by decantation, and dried at 80 ° C for a whole day and night. The polycondensate was isolated.
When IR, ¹³ C-NMR, ¹ H-NMR, and ²⁹ Si-NMR measurements were performed, this polycondensate was [(CH ₃ ) ₃ Si.
Silicone consisting of a unit of [O _1/2 ] and a unit of [O _3/2 SiQ ² SiO _3/2 ] (wherein Q ² represents a divalent organic group represented by — (CH ₂ ) ₃ —). Was confirmed. The obtained silicone was used as Silicone 1 in the examples of cosmetics described below.

[0107]

[Production Example 14] In a three-necked flask equipped with a condenser and a stirrer, 89.6 g of the silicon compound of Production Example 2, 48.2 g of the silicon compound of Production Example 3, 0.8 g of 3-aminopropyltrimethoxysilane and ethyl alcohol / 300 ml of tetrahydrofuran mixed solvent (7/3 by weight ratio) was taken and mixed and dissolved. A solution in which 9.1 g of water was dissolved in 100 ml of the above-mentioned mixed solvent was added to this solution while continuing stirring. After the addition was completed, the mixture was left at 25 ° C. for 4 hours while continuing stirring.
Trimethylmethoxysilane 116.7 was added to this mixed solution.
g, 100.8 g of water, 200 ml of the mixed solvent described above, and 2.8 ml of concentrated hydrochloric acid were added, and the mixture was allowed to stand at 25 ° C. for 10 hours while further stirring. After the reaction was completed, the system separated into two phases, so the solvent phase was removed by decantation, further washed with a 5% sodium hydrogen carbonate solution and water, the water was removed again by decantation, and dried at 80 ° C for one day. The polycondensate was isolated. IR, ¹³ C-NM
When R, ¹ H-NMR and ²⁹ Si-NMR measurements were performed, the polycondensate was a unit of [(CH ₃ ) ₃ SiO _1/2 ], [O _3/2 SiQ ² SiO _3/2 ] ( However, Q ² is units) represents a divalent organic group represented by the formula (1a) and _{^{[O 3/2 SiQ 2 'SiO 3/2}} ] ( where, Q ^2' is -. (C
It represents a divalent organic group represented by _{- H 2) 2 S (CH} 2) 3. It was confirmed that the silicone was a unit consisting of The obtained silicone was used as Silicone 2 in the examples of cosmetics described below.

[0108]

[Production Example 15] In a three-necked flask equipped with a condenser and a stirrer
44.0 g of the silicon compound of Production Example 4, tetramethoxysila
22.8 g, 3- (4,5-dihydroimidazole)
2.1 g propyltriethoxysilane and isopropyl
400 ml of alcohol was taken and mixed and dissolved. Stirring
While continuing, add 10.1 g of water to this solution.
A solution dissolved in 100 ml of rucor was added. End of addition
After the completion, the mixture was left at 60 ° C. for 2 hours while continuing stirring. this
147.9 g of hexaethyldisiloxane and water in the mixed solution
54.0 g, isopropyl alcohol 200 ml, concentrated glass
Add a solution of 3.0 ml of acid and continue stirring.
While standing at 60 ° C. for 16 hours. After the reaction is complete, the system is
Since the phases were separated, the solvent phase was removed by decantation.
Remove and wash with 5% sodium bicarbonate solution and water
After that, the polycondensate was isolated by removing water by freeze-drying.
IR,¹³C-NMR,¹H-NMR,²⁹Si-NMR measurement
The polycondensate was determined to be [(C₂H_Five)_ThreeSi
O_1/2] Unit, [SiO ₂] Unit and [O
_3/2SiQ²SiO_3/2] (However, Q²Is the above formula (2a)
It represents the divalent organic group shown. ) Unit
It was confirmed to be a Ricorn. Obtained silicone
Was used as Silicone 3 in the examples of cosmetics described below.

[0109]

[Production Example 16] 76.6 g of the silicon compound of Production Example 5, 0.45 g of triethylamine and 300 ml of ethyl cellosolve were placed in a three-necked flask equipped with a condenser and a stirrer,
Mixed and dissolved. With continued stirring, add 3.9 parts of water to the solution.
A solution of g in 100 ml of ethyl cellosolve was added. After the addition was completed, the mixture was left for 2 hours at 5 ° C. while continuing stirring. Add phenyldimethylchlorosilane 8 to this mixed solution.
1.9 g, water 43.2 g, ethyl cellosolve 150 m
1 and a solution of concentrated nitric acid (3.0 ml) were added, and the mixture was allowed to stand at 20 ° C. for 8 hours while continuing stirring. After the reaction,
Since the system was separated into two phases, the solvent phase was removed by decantation, further washed with a 5% sodium hydrogen carbonate solution and water, and then water was again removed by decantation.
The polycondensate was isolated by drying overnight at 0 ° C. IR, ¹³ C
When -NMR, ¹ H-NMR and ²⁹ Si-NMR measurements were carried out, this polycondensate was found to be [(C ₆ H ₅ ) (CH ₃ ) ₂ Si.
O _1/2 ] unit and [(O _3/2 Si) ₃ Q ³ ] (however,
Q ³ represents a trivalent organic group represented by the above formula (3a). It was confirmed that the silicone was a unit consisting of The obtained silicone was used as Silicone 4 in the examples of cosmetics described below.

[0110]

Production Example 17 In a three-necked flask equipped with a condenser and a stirrer, 32.2 g of the silicon compound of Production Example 6, 2.8 g of tetraethoxysilane, 0.18 g of acetic acid and 250 ml of dimethylsulfoxide were mixed and dissolved. While continuing stirring, 5.5 g of water was added to 50 ml of dimethyl sulfoxide.
A solution dissolved in ml was added. After the addition was completed, the mixture was left at 60 ° C. for 6 hours while continuing stirring. A solution of 44.6 g of hexapropyldisiloxane, 13.4 g of water, 150 ml of dimethyl sulfoxide and 4.0 g of citric acid was added to this mixed solution, and the mixture was allowed to stand at 60 ° C. for 18 hours while continuing stirring. After the reaction was completed, the system separated into two phases, so the solvent phase was removed by decantation, and the
After washing with an aqueous solution of sodium hydrogen carbonate and water, the water was removed by freeze-drying to isolate the polycondensate. IR, ¹³ C-NM
When R, ¹ H-NMR and ²⁹ Si-NMR measurements were carried out, this polycondensate was found to have a unit of [(C ₃ H ₇ ) ₃ SiO _1/2 ], a unit of [SiO ₂ ] and [(O _{3 / 2} Si)
₃ Q ³ ] (where Q ³ represents a trivalent organic group represented by the above formula (4a)) was confirmed to be a silicone. The obtained silicone is silicone 5
Was used in the examples of cosmetics described below.

[0111]

[Production Example 18] 88.5 g of the silicon compound of Production Example 7 and 500 ml of tetrahydrofuran were placed in a three-necked flask equipped with a condenser and a stirrer, and mixed and dissolved. While continuing stirring, 15.6 g of water and 1.5 ml of concentrated aqueous ammonia were added to this solution.
Was dissolved in 100 ml of tetrahydrofuran, and the solution was added. After the addition was completed, the mixture was left standing at 10 ° C. for 1 hour while continuing stirring. 94.0 g of tert-butyldimethylchlorosilane and 45. Og, tetrahydrofuran 3
A solution consisting of 00 ml and 5.0 g of acetic acid was added, and the mixture was left at 10 ° C. for 4 hours while further stirring. After the reaction was completed, the system separated into two phases, so the solvent phase was removed by decantation, further washed with a 5% sodium hydrogen carbonate solution and water, the water was removed again by decantation, and dried at 80 ° C for one day. The polycondensate was isolated. I
When R, ¹³ C-NMR, ¹ H-NMR and ²⁹ Si-NMR measurements were carried out, this polycondensate was found to be [{(CH ₃ ) ₃ C}.
{CH ₃ } ₂ SiO _1/2 ] unit and [(O _3/2 Si)
₃ Q ³ ] (however, Q ³ represents a trivalent organic group represented by the above formula (5a)) and is confirmed to be a silicone. The resulting silicone is silicone 6
Was used in the examples of cosmetics described below.

[0112]

[Production Example 19] In a three-necked flask equipped with a condenser and a stirrer, 18.1 g of the silicon compound of Production Example 8, 4.1 g of the silicon compound of Production Example 3, 0.9 g of tetramethoxysilane, 300 ml of tetrahydrofuran and 3-aminopropyl. 0.6 g of methoxysilane was taken and mixed and dissolved. While continuing stirring, 6.0 g of water was added to 100 ml of tetrahydrofuran in this solution.
A solution dissolved in ml was added. After the addition was completed, the mixture was left standing at 20 ° C. for 3 hours while continuing stirring. To this mixed solution was added a solution of 62.5 g of trimethylmethoxysilane, 59.4 g of water, 250 ml of tetrahydrofuran, and 3.0 ml of concentrated hydrochloric acid, and the mixture was allowed to stand at 20 ° C. for 12 hours while continuing stirring. After the reaction was completed, the system separated into two phases, so the solvent phase was removed by decantation, further washed with a 5% sodium hydrogen carbonate solution and water, the water was removed again by decantation, and dried at 80 ° C for one day. The polycondensate was isolated. IR, ¹³ C-NMR, ¹ H-NMR, ²⁹
Was subjected to Si-NMR measurement, units of the polycondensate is _{[(CH 3) 3 SiO 1/2} ], units of _{[SiO 2], [O 3/2} SiQ 2 SiO 3/2] ( where, Q ² is-
It represents a divalent organic group represented by _{- (CH 2) 2 S (} CH 2) 3. ) Unit and [(O _3/2 Si) ₄ Q ⁴ ] (however,
Q ⁴ represents a tetravalent organic group represented by the above formula (6a). It was confirmed that the silicone was a unit consisting of The obtained silicone was used as silicone 7 in the examples of cosmetics described below.

[0113]

[Production Example 20] In a three-necked flask equipped with a condenser and a stirrer, 98.1 g of the silicon compound of Production Example 9, 1.7 g of tetraethoxysilane, 700 ml of an isopropyl alcohol / tetrahydrofuran mixed solvent (weight ratio 7/3) and morpholine. 2.1 g was taken and mixed and dissolved. While continuing stirring, a solution prepared by dissolving 3.1 g of water in 100 ml of the above-mentioned mixed solvent was added to this solution. After the addition was completed, the mixture was left standing at 20 ° C. for 4 hours while continuing stirring. To this mixed solution was added a solution of 83.4 g of trimethylmethoxysilane, 64.8 g of water, 400 ml of the mixed solvent described above, and 7.5 ml of concentrated hydrochloric acid, and the mixture was left to stand at 20 ° C. for 12 hours while continuing stirring. After the reaction was completed, the system separated into two phases, so the solvent phase was removed by decantation, further washed with a 5% sodium hydrogen carbonate solution and water, the water was removed again by decantation, and dried at 80 ° C for one day. The polycondensate was isolated. IR, ¹³ C-NMR, ¹ H-NMR, ²⁹ Si-N
When MR measurement was performed, this polycondensate was found to be [(C
H _{3) 3} units of _{SiO 1/2], [(O 3/2} Si) 4 Q 4]
(However, Q ⁴ represents a tetravalent organic group represented by the above formula (7a).) It was confirmed to be a silicone composed of a unit and a unit of [SiO ₂ ]. The obtained silicone was used as silicone 8 in the examples of cosmetics described below.

[0114]

[Production Example 21] 82.4 g of the silicon compound of Production Example 10 and 400 m of acetone were placed in a three-necked flask equipped with a condenser and a stirrer.
1 was taken and mixed and dissolved. While continuing to stir, add to this solution
A solution of 21.6 g of water dissolved in 100 ml of acetone was added. After the addition was completed, the mixture was left at 20 ° C. for 1 hour while continuing stirring. Hexamethyldisiloxane 6 was added to this mixed solution.
A solution consisting of 5.0 g, 36.0 g of water, 200 ml of acetone and 7.0 ml of concentrated hydrochloric acid was added, and the mixture was left standing at 20 ° C. for 4 hours while further stirring. After the reaction was completed, the system was separated into two phases, so the solvent phase was removed by decantation and further washed with a 5% sodium hydrogen carbonate solution and water.
The water was removed again by decantation, and the polycondensate was isolated by drying at 80 ° C for 24 hours. IR, 1 ³ C-NMR,
^{When 1} H-NMR and ²⁹ Si-NMR measurements were performed,
The polycondensate is _{[(CH 3) 3 SiO 1} /2] units and _{[(O 3/2 Si) 4 Q} 4] ( where, Q ⁴ is the formula (8a)
Represents a tetravalent organic group represented by. It was confirmed that the silicone was a unit consisting of The obtained silicone was used as silicone 9 in the examples of cosmetics described below.

[0115]

PRODUCTION EXAMPLE 22 24.9 g of the compound of Production Example 1 and the compound 6 of Production Example 12 were placed in a three-necked flask equipped with a condenser and a stirrer.
1.9 g and 250 ml of tetrahydrofuran were taken and mixed and dissolved. While continuing stirring, a solution prepared by dissolving 16.2 g of water in 70 ml of tetrahydrofuran was added to this solution.
After completion of the addition, the mixture was left standing at 20 ° C. for 1 hour while continuing stirring.
130.2 g of trimethylchlorosilane was added to this mixed solution,
A solution consisting of 24.3 g of water, 150 ml of tetrahydrofuran and 3 ml of concentrated hydrochloric acid was added, and the mixture was left at 20 ° C. for 8 hours while further stirring. When a small amount of water was added after the reaction, the system separated into two phases, so the solvent phase was removed by decantation and the remaining volatile components were removed by a rotary evaporator to isolate the polycondensate. IR, ¹ H-NMR,
^{When 13} C-NMR and ²⁹ Si-NMR measurements were performed, this polycondensate was found to have a unit of [(CH ₃ ) ₃ SiO _1/2 ],
[O _3/2 SiQ ² SiO _3/2 ] (However, Q ² is-(C
H ₂ ) ₃ −. ) Unit and [O _3/2 SiQ ² '
SiO _3/2 ] (wherein Q ² 'represents a divalent organic group represented by the above formula (9a)) was confirmed to be a silicone. The obtained silicone was used as Silicone 10 in the examples of cosmetics described below.

[0116]

[Production Example 23] 38.8 g of the compound of Production Example 3 and the compound 1 of Production Example 11 were placed in a three-necked flask equipped with a condenser and a stirrer.
8.3 g, 3-aminopropyltrimethoxysilane 1.
1 g and 100 ml of ethyl alcohol were taken and mixed and dissolved. A solution of 8.2 g of water in 40 ml of ethyl alcohol was added to this solution while continuing stirring. After the addition was completed, the mixture was left standing at 20 ° C. for 2 hours while continuing stirring. To this mixed solution, 62.5 g of trimethylmethoxysilane and 12.
A solution consisting of 2 g, 60 ml of ethyl alcohol and 1.5 ml of concentrated hydrochloric acid was added, and the mixture was allowed to stand at 20 ° C. for 16 hours while continuing stirring. After the reaction, the system was separated into two phases, so the solvent phase was removed by decantation, and the polycondensate was isolated by removing the volatile components remaining on the rotary evaporator after washing with a 5% sodium hydrogen carbonate solution and water.
When IR, ¹ H-NMR, ¹³ C-NMR and ²⁹ Si-NMR measurements were carried out, this polycondensate was [(CH ₃ ) ₃ SiO 2.
_1/2 ] unit, [O _3/2 SiQ ² SiO _3/2 ] (however,
Q ² is _{- (CH 2) 2 S (} CH 2) 3 - represents a. ) Unit and [O _3/2 SiQ ² 'SiO _3/2 ] (however, Q ² ' is
It represents a divalent organic group represented by the above formula (9a). It was confirmed that the silicone was a unit consisting of The obtained silicone was used as silicone 11 in the examples of cosmetics described below.

[0117]

Production Example 24 57.5 g of the compound of Production Example 2 and the compound 1 of Production Example 11 were placed in a three-necked flask equipped with a condenser and a stirrer.
4.7 g, tetramethoxysilane 4.6 g, 3-aminopropyltrimethoxysilane 0.3 g, ethyl alcohol / tetrahydrofuran mixed solvent (weight ratio 7/3) 2
00 ml was taken and mixed and dissolved. While continuing stirring, a solution prepared by dissolving 15.0 g of water in 50 ml of the mixed solvent was added to this solution. After the addition was completed, the mixture was left standing at 20 ° C. for 2 hours while continuing stirring. To this mixed solution was added 93.8 g of trimethylmethoxysilane, 20.0 g of water, and 100 of the above mixed solvent.
ml and concentrated nitric acid 2.5 ml were added, and the mixture was left at 20 ° C. for 12 hours while further stirring. After the reaction, the system was separated into two phases by the addition of a small amount of water, so the solvent phase was removed by decantation, washed with a 5% sodium hydrogen carbonate solution and water, and the remaining volatile components were removed by a rotary evaporator to perform polycondensation. The product was isolated. IR,
^{When 1} H-NMR, ¹³ C-NMR and ²⁹ Si-NMR measurements were carried out, this polycondensate was found to be [(CH ₃ ) ₃ SiO _1/2 ].
Unit of [O _3/2 SiQ ² SiO _3/2 ] (where Q ² represents a divalent organic group represented by the above formula (1a)) and [O _3/2 SiQ ² 'SiO. _3/2 ] (However, Q ² '
Represents a divalent organic group represented by the above formula (9a). )
It was confirmed that the silicone was a silicone composed of a unit of [ ₁ ] and a unit of [SiO ₂ ]. The obtained silicone was used as silicone 12 in the examples of cosmetics described below.

Next, an example of the silicone-treated powder of the present invention, the surface of which has been coated with the silicones 1 to 12 obtained in each of the above production examples, will be described. In addition, the compounding amounts shown below are all parts by weight.

[0119]

Examples 1 to 5 Silicone-treated powder The prescription components shown in Table 1 were weighed in a ball mill and mechanochemically coated while pulverizing for 72 hours, and the silicone-treated powder of the present invention and the silicone obtained in the above production example. A silicone-treated powder of Comparative Example using polyhydroxymethylsiloxane instead of was obtained.

[0120]

[Table 1]

[0121]

Examples 6 to 10 Silicone-treated powder The prescription components shown in Table 2 were weighed in a kneader, kneaded well, and the solvent was removed under reduced pressure to obtain the silicone-treated powder of the present invention and the above-mentioned production examples. A silicone-treated powder of a comparative example using polyhydroxymethylsiloxane instead of silicone was obtained.

[0122]

[Table 2]

[0123]

Example 11 Silicone Treated Powder 70 parts by weight of black iron oxide, 5 parts by weight of carbon black, 5 parts by weight of dark blue, 20 parts by weight of silicone 11 and 30 parts by weight of volatile cyclic silicone were well kneaded with a kneader to prepare a solvent. Was removed to obtain a silicone-treated powder of the present invention.

[0124]

Example 12 Silicone Treated Powder 25 parts by weight of Red No. 202, 25 parts by weight of Red No. 204, 30 parts by weight of Aluminum Lake No. 4 of Yellow, Silicone 12
20 parts by weight and 30 parts by weight of volatile cyclic silicone were well kneaded with a kneader to remove the solvent to obtain a silicone-treated powder of the present invention.

<Evaluation of Silicone Treated Powder of the Present Invention> The silicone treated powder of the present invention obtained in each of the above examples was subjected to the following tests in order to evaluate water repellency and film removability.

(1) Water repellency test The silicone repellency obtained in each of the above Examples and Comparative Examples was put into water, forcibly stirred, and evaluated for water repellency from the degree of sedimentation of the powder when left standing. did. The results show that the silicone-treated powders obtained in the comparative examples settle in water and the water repellency is not sufficient, whereas the silicone-treated powders obtained in the examples are all floating on the water surface and excellent in water repellency. Was confirmed.

(2) Silicone film removal test To the silicone-treated powder 1 of the present invention obtained above, 20 times the amount of benzene was added, heated under reflux for 3 hours and filtered to recover the powder. When the collected powder was confirmed by infrared spectroscopic analysis, almost no absorption of an alkyl group was recognized. From this result, it can be seen that the silicone used for the surface treatment of the powder could be removed.

Next, a cosmetic containing the silicone-treated powder obtained in each of the above Examples or Comparative Examples was prepared. still,
The compounding amounts shown below are all parts by weight.

[0129]

[Example 13] Foundation The ingredients shown in Table 3 were weighed in a Henschel mixer, mixed with stirring, pulverized with a pulverizer equipped with a 1 mm herringbone, filled in a mold and pressure-molded to obtain two types of foundation. It was One is a foundation of the present invention containing the above-mentioned silicone-treated powder of the present invention,
The other was a foundation containing the silicone-treated powder of Comparative Example.

[0130]

[Table 3]

[0131]

Example 14 Under Makeup After heating the components A, B, D, and E shown in Table 4 to 80 ° C., respectively, first, the components A and B were mixed and kneaded well. Component D was added to this, and then component C was added and dispersed. Finally, the E component was gradually added, emulsified, stirred and cooled to obtain an undermakeup.

[0132]

[Table 4]

[0133]

Example 15 Mascara The components A, B, D and E shown in Table 5 were heated to 80 ° C., and then the components A and B were mixed and kneaded well. Component D was added to this, and then component C was added and dispersed. Finally, the E component was gradually added, emulsified and cooled with stirring to obtain a mascara.

[0134]

[Table 5]

[0135]

Example 16 Lip Color After dissolving and dispersing the prescription components shown in Table 6 at 80 ° C.,
This was hot rolled. This was heated again to 90 ° C., poured into a mold and mounted in a container to obtain a lip color. In the manufacturing process, no undesired phenomenon such as separation of powder was observed.

[0136]

[Table 6]

<Evaluation of Cosmetics of the Present Invention> The cosmetics containing the silicone-treated powder of the present invention obtained in each of the above Examples were subjected to sensory evaluation and evaluation of adhesion, water repellency and the like.

(1) Evaluation of Foundation With respect to the foundation of Example 13 and the foundation of Comparative Example 5 obtained above, five specialist panelists compared the cosmetic effects. The evaluation items are adhesion, makeup retention, natural finish, and makeup look. The evaluation criteria are 5 points for good, 4 points for good, 3 points for normal, and 2 points for bad. It was a five-level evaluation with 1 point.
Table 7 shows the average of the scores given by five panelists.

[0139]

[Table 7]

From these results, the foundation containing the silicone-treated powder of the present invention was found to have any of adhesion, makeup retention, natural finish, and cosmetic finish, as compared with the conventional foundation containing the silicone-treated powder. It can be seen that the evaluation item (1) also has excellent sensory properties.

(2) Evaluation of undermake-up The undermake-up of Example 14 obtained above was evaluated by 5 professional panelists for the cosmetic effect in the same manner as the foundation. As a result, it was found that the undermakeup of the present invention is excellent in the effect of maintaining the gloss and naturalness of the finish of the makeup and improving the makeup retention of the makeup.

(3) Evaluation of mascara With respect to the mascara of Example 15 obtained above, 5 professional panelists evaluated the cosmetic effect in the same manner as the foundation. As a result, it was found that the mascara of the present invention has excellent adhesiveness and water repellency, and the cosmetic effect is maintained for a long time.

(4) Evaluation of Lip Color With respect to the lip color of Example 16 obtained above, 5 professional panelists evaluated the cosmetic effect in the same manner as the foundation. As a result, the lip color of the present invention is
It was confirmed that the makeup lasted well and that the color stability against light was excellent.

Comprehensive evaluation of these results shows that the cosmetics containing the silicone-treated powder of the present invention have higher water repellency, stability, adhesiveness, as compared with cosmetics containing conventional silicone-treated powders. It can be seen that it has excellent makeup retention, natural finish, and makeup effect.

[0145]

The silicone-treated powder of the present invention is characterized in that it has excellent water repellency due to the action of the silicone coating formed on the surface and that the silicone coating can be released only under specific conditions. Have. Further, the paint composition and cosmetics of the present invention containing the above-mentioned silicone-treated powder have excellent water repellency and stability, and can be easily separated from the adherend under specific conditions.

Claims (11)

[Claims] 1. A silicone-treated powder surface-treated with silicone, wherein the silicone has the general formula (I): Q ⁿ (SiO _3/2 ) _n (where Q ⁿ is an n-valent organic group). , And n represents any one of integers of 2 to 6) as a main constituent unit, and has a terminal of the formula (II): (R ¹ ) ₃ SiO _1/2 ( However, R ¹ may be the same as or different from each other, and represents a hydrocarbon group, or a hydrocarbon group in which at least a part of hydrogen atoms is substituted with a chlorine atom or a bromine atom.). A silicone-treated powder that is a blocked silicone. 2. The silicone according to claim 1, wherein the silicone further contains a SiO ₂ unit as a main constituent unit in a molar ratio of 3/2 or less with respect to a unit represented by Q ⁿ (SiO _3/2 ) _n. The silicone-treated powder described. 3. The silicone-treated powder according to claim 1, wherein n in the general formula (I) in the silicone is 2, 3, or 4. Q ⁿ of the general formula (I) in claim 4 wherein said silicone is 1) an alkylene group; 2) a polymethylene group; 3)
Phenylene group; 4) arylene group; 5) the above 1) to 4)
The hydrogen atom of the group of is further substituted with at least one member selected from the group consisting of an alkyl group, a phenyl group, an aryl group, an alkylene group, a polymethylene group, a phenylene group and an arylene group; 6) The groups of 1) to 4) above. A group containing at least one functional group of the group consisting of an ether, a thioether, an ester, a ketone, an amide, an imide, an amine and an imine in its structure; and 7) a hydrogen atom of the group of 1) to 6) above is chlorine. The silicone-treated powder according to claim 1, which is one of the group consisting of an atom or a group substituted with a bromine atom; 5. The silicone according to claim 1, wherein the main constituent unit in the silicone includes a unit in which a divalent organic group containing a diamide of dicarboxylic acid is introduced as Q ⁿ into the general formula (I). Treated powder. 6. A unit having a divalent organic group containing a diamide of a dicarboxylic acid as Q ^{n in the} formula (I) as a main constituent unit of the silicone and a formula (I).
The silicone-treated powder according to claim 1, wherein the silicone-treated powder comprises a unit in which a divalent organic group other than the divalent organic group containing a diamide of dicarboxylic acid is introduced as Q ⁿ . 7. R ¹ of the general formula (II) in the silicone comprises an alkyl group, a phenyl group, an aryl group, and a group in which at least a part of hydrogen atoms of these groups are substituted with a chlorine atom or a bromine atom. The silicone-treated powder according to claim 1, which is one of the groups. 8. The silicone-treated powder according to any one of claims 1 to 7, wherein the composition weight ratio of silicone to powder is 1:99 to 50:50. 9. General formula (I): Q ⁿ (SiO _3/2 ) _n (wherein Q ⁿ represents an n-valent organic group, and n represents any one of integers of 2 to 6. At least one of the units represented by the formula ( ¹ ) is a main constituent unit, and the terminal is represented by the formula (II): (R ¹ ) ₃ SiO _1/2 (provided that R ^1's may be the same or different from each other; A hydrogen group, or a hydrocarbon group in which at least a part of hydrogen atoms are substituted with chlorine or bromine atoms), is dissolved in an organic solvent compatible with the unit to obtain a silicone. 2. The silicone treatment according to claim 1, wherein after the powder is immersed in the solution, the powder is pulled out of the solution and the organic solvent is dried to form a coating film of the silicone on the surface of the powder. Powder manufacturing method. 10. A paint composition containing the silicone-treated powder according to claim 1. 11. A cosmetic containing the silicone-treated powder according to claim 1.