JPH05262987A - Hydrous silicone composition, its production and cosmetic - Google Patents

Abstract

PURPOSE:To simply obtain the subject uniform composition stably and uniformly dispersible into water, comprising a specific polymerization product and an organopolysiloxane. CONSTITUTION:The objective composition comprising (A) a polymerization product obtained by subjecting (i) an organohydrogenpolysiloxane containing >=1.5 hydrogen bonded to silicon in the molecule on the average and (ii) an organopolysiloxane containing <=1.5 aliphatic unsaturated group bonded to silicon in the molecule on the average to addition polymerization in the presence of a low-viscosity silicone oil having <=100cst viscosity at 25 deg.C and (B) an organopolysiloxane (preferably one having <=10 HLB) containing a polyoxyalkylene of formula I [R<1> is (substituted) monofunctional hydrocarbon; R<2> is monofunctional organic group of formula II (R<3> is H, 1-5C alkyl or acetyl; c is 2-200; d is 0-200 and c+d is 2-300; n is 2-6); a and b are in 1.0<=a<=2.5, 0.001<=b<=1.0].

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a stable and uniform dispersion of water prepared by using a silicone polymer which is swellable in silicone oil and an organopolysiloxane having a polyoxyalkylene group. The present invention relates to a paste-like silicone composition, a method for producing the same, and a cosmetic.

[0002]

2. Description of the Related Art Silicone oil has been used as a base oil for various compositions in various fields such as medical treatment and cosmetics because of its safety.

These silicone oils are usually relatively high in viscosity having a viscosity of 100 cSt or more at 25 ° C., but recently, particularly in the fields of medical treatment and cosmetics, a low viscosity silicone oil of 100 cSt or less has been used. It has attracted attention because of its excellent extensibility, refreshing feeling, and high safety, and its use has been widely studied.

However, when a low-viscosity silicone oil is used as a base oil, for example, when a paste-like or grease-like silicone composition is prepared, it is necessary to increase the addition amount of the thickener, so that it is smooth and uniform. There is a problem that the composition is difficult to obtain, and the low-viscosity silicone oil is easily separated and discharged from the obtained composition, so that the stability is low. In order to solve such a problem, a fatty acid ester of dextrin has been conventionally used as a thickener for low-viscosity silicone oils (Japanese Patent Laid-Open Nos. 62-121764 and 62-14).
3971, 62-143970, 63-159.
No. 489), a fatty acid ester of sucrose (JP-A-63-23).
5366), trimethylsilylated polyvinyl alcohol and trimethylsilylated polysaccharides (JP-A-62-2403).
35), fatty acid ester group-containing cellulose ether (JP-A-63-260955), and organic modified clay minerals (JP-A-62-45656 and JP-A-62-5).
It has been proposed to use inorganic materials such as 4759 and 63-72779).

However, when these organic or inorganic materials are used as a thickener, there is a problem that the characteristics such as the refreshing feeling and the high extensibility inherent in the low-viscosity silicone oil deteriorate.

Therefore, there has been proposed a method of obtaining a uniform paste composition by treating a specific silicone polymer as a thickening agent and a low-viscosity silicone oil under shearing force (JP-A-2-43263). issue).

By the way, in the fields of medical treatment and cosmetics, not only oil but also water is often added as a necessary component to the composition. In such a case, a surfactant is used according to a conventional method, but it is difficult to disperse the silicone oil and water in a uniform and stable state.
The silicone thickener described in No. 63 also has an excellent thickening property for silicone oil, but has a drawback that it is not uniformly dispersed when water is blended. In addition,
Since many surfactants are irritating to the skin, it is not preferable to use them.

To solve this drawback, Japanese Patent Application No. 3-56
No. 033 proposes to introduce a polyoxyalkylene group into the molecule of the silicone thickener. But,
When this product is produced by reacting an organohydrogenpolysiloxane having a polyoxyalkylene group with an organopolysiloxane having an aliphatic unsaturated group, the production of an organohydrogenpolysiloxane having a polyoxyalkylene group as a raw material Causes problems.
That is, when the organohydrogenpolysiloxane and the polyoxyalkylene having a double bond at the terminal are partially added to produce the compound, the stability is poor and the remaining Si—H bond is decomposed over time.

The method of producing by reacting an organohydrogenpolysiloxane with a polyoxyalkylene having double bonds at both ends is not preferable because a solvent is required at the time of reaction.

Further, Japanese Patent Publication No. 62-59681 discloses that a system using a volatile dimethylpolysiloxane, an organopolysiloxane having a relatively high molecular weight polyoxyalkylene group, water and alcohol is emulsified. A method for uniformly dispersing water and dimethylpolysiloxane has been proposed. However, since a thickener is not used in this method, sufficient thickening cannot be imparted to the entire mixed system. Moreover, there is a problem in that sufficient dispersion stability cannot be obtained when a nonvolatile dimethylpolysiloxane is blended.

[0011]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to make a low-viscosity silicone oil into a stable paste or grease, and to stably and uniformly disperse water without using a surfactant. Disclosed is a homogeneous paste-like silicone composition that can be dispersed in a composition, a method for easily obtaining the composition, and a cosmetic containing the composition.

[0012]

Means and Actions for Solving the Problems As a result of intensive studies for achieving the above-mentioned object, the present inventor has found that (a) an average of 1.5 or more hydrogen atoms bonded to silicon atoms in a molecule. The organohydrogenpolysiloxane containing 25 and the organopolysiloxane containing an average of 1.5 or more aliphatic unsaturated groups bonded to silicon atoms in the molecule are included.
(B) an organopolysiloxane having a polyoxyalkylene group represented by the following general formula (I) is added to a polymerization product obtained by addition polymerization in the presence of a low-viscosity silicone oil having a viscosity at 100 ° C. of 100 cSt or less. By kneading, in this case, especially by kneading under shear, a homogeneous paste-like silicone composition can be obtained, and this composition can stably disperse water uniformly without using a surfactant. Therefore, the present invention has been accomplished by finding that it is useful as a component of W / O type cosmetics and the like.

[0013]

[Chemical 3] (In the formula, R ¹ is a substituted or unsubstituted monovalent hydrocarbon group,
R ² is a monovalent organic group represented by _{-C n H 2n O (C 2} H 4 O) c (C 3 H 6 O) d R 3, R 3 is C1-5 hydrogen or C An alkyl group or an acetyl group, a and b are numbers 1.0 ≦ a ≦ 2.5 and 0.001 ≦ b ≦ 1.0, c is an integer from 2 to 200, and d is an integer from 0 to 200. And c + d is 2 to 300, and n is an integer of 2 to 6. )

Therefore, the present invention provides a homogeneous hydrous silicone composition containing the above-mentioned components (a) and (b),
Provided is a method for producing a hydrous silicone composition in which the component (b) is kneaded with the component (b) under shear, and a cosmetic containing the composition.

The present invention will be described in more detail below. The first component [(a) component] constituting the hydrous silicone composition of the present invention is the following (a) -i organohydrogenpolysiloxane and the following (a): (A) -ii and organopolysiloxane are polymerized products obtained by addition-polymerizing the following (a) -iii in the presence of a low-viscosity silicone oil. (A) -i: an organohydrogenpolysiloxane containing an average of 1.5 or more hydrogen atoms bonded to silicon atoms in the molecule. (A) -ii: An organopolysiloxane containing an average of 1.5 or more aliphatic unsaturated groups bonded to silicon atoms in the molecule. (A) -iii: A low-viscosity silicone oil having a viscosity at 25 ° C. of 100 cSt or less.

Organoha of the above component (a) -i
As the idrogen polysiloxane, RSiO_1.5single
Rank, R₂SiO Unit, R₃SiO_0.5Unit, SiO₂unit,
HR SiO Unit, HR₂SiO_0.5Unit, HSiO_1.5single
One that consists of ranks and the like. In this case, R is a substitution or
Represents an unsubstituted monovalent hydrocarbon group, preferably having 1 carbon atom
-10, and examples of R include a methyl group and an ether group.
Cyl group, propyl group, butyl group, pentyl group, hexyl group
Group, heptyl group, octyl group, nonyl group, decyl group, etc.
Alkyl group; cyclopentyl group, cyclohexyl group, etc.
Saturated alicyclic hydrocarbon group; ants such as phenyl group and tolyl group
And a methyl group is particularly preferable.
% Or more is desirable.

The organohydrogenpolysiloxane may be linear, branched or cyclic.
In order to promote the addition polymerization smoothly, it is preferably linear. Further, this organohydrogenpolysiloxane has hydrogen atoms (S
1.5 or more, preferably 1.
It is contained in an amount of 5 to 5, more preferably 2 to 5, and is preferably 10 mol% or less of all the organic groups.

Further, it is represented by the above component (a) -ii.
One molecule of organopolysiloxane containing aliphatic unsaturated groups
The average of the aliphatic unsaturated groups bonded to silicon atoms is 1.
5 or more, preferably 1.5 to 5, more preferably
It contains 2 to 5 pieces. With this aliphatic unsaturated group
Examples thereof include a vinyl group and an allyl group.
Vinyl groups are generally preferred. This organopoly Shiroki
As Sun, for example (CH₂= CH) SiO_1.5unit,
RSiO_1.5Unit, R₂SiO Unit, (CH₂= CH) R
SiO Unit, R₃SiO_0.5Unit, (CH₂= CH) R₂S
iO_0.5Unit, SiO₂Unit (R has the same meaning as above.
) And the like. This organopoly
Roxanes may be linear, branched or cyclic.
However, in order to promote the addition polymerization smoothly, it is linear
Preferably.

The low-viscosity silicone oil of the above-mentioned components (a) -iii can be used without particular limitation as long as it has a viscosity at 25 ° C. of 100 cSt or less,
It is preferably 50 cSt or less. Examples of this low-viscosity silicone oil include linear or branched methyl polysiloxane, methylphenyl polysiloxane, ethyl polysiloxane, ethyl methyl polysiloxane, ethyl phenyl polysiloxane, cyclic dimethyl polysiloxane (octamethylcyclotetrasiloxane). Siloxane, decamethylcyclopentasiloxane, etc.) and the like. These may be used alone or in combination of two or more.

The polymerization product of the component (a) is (a)-
The organohydrogenpolysiloxane of i and (a)-
This is a product obtained by addition-polymerizing the organopolysiloxane of ii in the presence of the low-viscosity silicone oil of (a) -iii. In this case, the blending ratio of the low-viscosity silicone oil of (a) -iii is ( The amount is 10 to 1000 parts by weight, preferably 20 to 500 parts by weight, based on 100 parts by weight of the total amount of (i) -i organohydrogenpolysiloxane and (i) -ii organopolysiloxane. This is because if the ratio of the (a) -iii component is less than 10 parts by weight,
If the thickening of the resulting composition is low because the effect of coexistence is small, and the amount is more than 1000 parts by weight, (a)-
In some cases, the reaction rate between the i component and the (a) -ii component decreases, and a polymer product having a sufficient viscosity increase cannot be obtained.

The addition polymerization of the organohydrogenpolysiloxane and the organopolysiloxane can be carried out by using a platinum compound (eg, chloroplatinic acid, alcohol-modified chloroplatinic acid, chloroplatinic acid-vinylsiloxane complex) or a rhodium compound. In the presence, room temperature or under heating (about 50 ~
The reaction may be performed at 150 ° C.

On the other hand, the second component of the composition of the present invention [(b)
Component] is an organopolysiloxane having a polyoxyalkylene group represented by the following formula (I).

[0023]

[Chemical 4]

Here, R ¹ is a substituted or unsubstituted monovalent hydrocarbon group, preferably one having 1 to 10 carbon atoms, and examples thereof include those similar to those exemplified for R above.

R ² is --C _n H _2n O (C ₂ H ₄ O)
_{c (C 3} H ₆ O) a monovalent organic group represented by _d R ^3, R ³
Represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms or an acetyl group, and examples of R ³ include a saturated aliphatic hydrocarbon such as methyl group, ethyl group, propyl group, butyl group and pentyl group in addition to hydrogen atom. Groups and acetyl groups.

In the above general formula, a is 1.0 to 2.
5, preferably a positive number of 1.2 to 2.2, and b is 0.
It is a positive number of 001 to 1.0, preferably 0.01 to 0.6. This is because if a is smaller than 1.0, the compatibility with the polymerization product is poor, and if it is larger than 2.5, sufficient water content cannot be maintained. Also, b is 0.001
This is because if it is smaller than this, sufficient water content cannot be maintained, and if it is larger than 1.0, the compatibility with the polymerization product becomes poor.

Further, c is 2-200, preferably 5-1.
Is an integer of 00, d is 0 to 200, preferably 0-1
00 is an integer. However, the sum of c and d is 2 to 300,
It is preferably 5 to 100. Note that n is an integer of 2 to 6.

The HLB value of the organopolysiloxane of the component (b) is preferably 10 or less in order to obtain sufficient compatibility with the polymerization product of the component (a).

Further, as the component (b) used here, it is particularly preferable to use the polyether silicone described in JP-A-2-302438. That is, the polyether silicone is usually produced by an addition reaction of an organohydrogenpolysiloxane and a polyoxyalkylene having a double bond at the terminal. However, when mixed in an aqueous system, an odor derived from unreacted components is generated, but in the above publication, by special treatment,
A method for solving the problem has been proposed, and by using the silicone oil described in JP-A-2-302438 as the component (b), it is possible to solve the problem of odor generation due to aging. That is, a polyether silicone is used as the organopolysiloxane of the component (b) in water,
Polyether purified by treating with an aqueous solution or an acid substance having a pH of 7 or less so that the pH of the entire system after treatment is 7 or less to generate an odorous substance, and then removing the generated odorous substance. It is preferable to use silicone.

The hydrous silicone composition of the present invention can be obtained by kneading the above-mentioned component (a) with the component (b). In this case, (b) is added to 100 parts by weight of the polymerization product of the component (a). It is preferable to knead 10 to 1000 parts by weight, preferably 20 to 500 parts by weight of the polyoxyalkylene group-containing organopolysiloxane as the component). If the amount of the component (b) to be kneaded with 100 parts by weight of the polymerization product is less than 10 parts by weight, a uniform paste composition will not be obtained, while if it exceeds 1000 parts by weight, the resulting composition will be In some cases, it may not be possible to obtain a sufficient thickening property, and similarly, a good paste or grease may not be obtained.

In this kneading, the components (a) and (b) may be used alone or as a mixture of two or more.

Here, in producing the hydrous silicone composition, it is effective to knead the components (a) and (b) under shearing force, and the kneading treatment under shearing force is effective. ,
It is important for obtaining a paste-like composition having a smooth appearance. If the shearing force is not applied or is insufficient, the swelling of the polymer with silicone oil is insufficient and both components are present without mixing, resulting in a non-uniform composition and insufficient swelling in the composition. Since such a polymer remains, the composition is not smooth in feel and appearance.

The kneading treatment carried out under shearing force can be carried out, for example, by a three-roll mill, a two-roll mill, a side grinder, a colloid mill, a Gaulin homogenizer, etc., but a three-roll mill method is preferred.

As a separate production method, the low-viscosity silicone oil having a viscosity of 100 cSt or less at 25 ° C. in the component (a) is replaced with the organopolysiloxane having a polyoxyalkylene group represented by the above formula (I). There is a method in which the cured product is kneaded with dimethylpolysiloxane, and the same composition as the composition of the present invention can be obtained. However, since it is necessary to use an organic solvent when obtaining this cured (polymerized) product, it is not always preferable in terms of practicality.

When the silicone composition of the present invention disperses water in a stable and uniform manner, the composition of the present invention should disperse powders or pigments having a difference in specific gravity from silicone oil stably without sedimentation. In addition, since it is possible to easily disperse water without using a surfactant, it is useful as a blending base material for cosmetics, quasi-drugs and the like creams and cake-shaped molded products. is there.

Since the composition obtained in the present invention has a good swelling property with respect to silicone oil, silicone oil having a viscosity of 100 cSt or more, or an oil agent compatible with silicone oil, is used if necessary. It is also possible to disperse water after blending (ester oil, hydrocarbon oil, alcohol, etc.).

As described above, the composition of the present invention is suitable as a base material for cosmetics. In this case, the other ingredients to be incorporated into the cosmetics are the types of cosmetics such as creams, emulsions, foundations, In addition to makeup cosmetics such as lipsticks, eye shadows, and mascara, known components corresponding to hair cosmetics can be used.

[0038]

The hydrous silicone composition of the present invention can stably and uniformly disperse water without using a surfactant, and the method for producing an aqueous silicone composition according to the present invention has a low It is possible to easily and reliably produce a homogeneous silicone composition in which the viscosity silicone oil is in the form of paste or grease and can be stably and uniformly dispersed in water. Furthermore, the cosmetic containing this composition has a low-viscosity silicone oil stably dispersed therein, is difficult to separate, and has an excellent feeling of use such as a refreshing feeling.

[0039]

EXAMPLES The present invention will now be specifically described with reference to examples, but the present invention is not limited thereto.
The viscosity in the examples is at 25 ° C.

Example 1 In a reactor, trimethylsilyl end-capped dimethylhydrogenpolysiloxane (average molecular weight 2280, Si-H 3.1 mol%) 600 g, dimethylvinylsilyl end-capped dimethylpolysiloxane (average molecular weight 930, vinyl group) 7.7 mol%) 267 g
And dimethylpolysiloxane (viscosity 6 cSt) 1300
g were mixed with stirring. 2 parts of chloroplatinic acid was added to the obtained mixed solution.
% Isopropanol solution 0.5 g added, 70-80
Stirring was continued for 2 hours at ° C. The resulting polymerized product (A) was a white powder having flexibility.

100 parts by weight of this polymerization product (A) and a polyether silicone 10 having an average composition formula (1)
0 parts by weight was dispersed and mixed, and then sufficiently kneaded by a three-roll mill under a shearing force and swollen to obtain a pasty silicone composition of the present invention.

[0042]

[Chemical 5]

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained.

For comparison, the above polymerization product (A) 10
A mixture of 0 parts by weight and 100 parts by weight of a polyether silicone having an average composition formula (1) was stirred at room temperature for 2 hours using a planetary mixer instead of the three-roll mill, and the obtained silicone was obtained. The composition remained rough and a paste-like composition having a smooth feel could not be obtained. Moreover, even if water was added to this, it was not dispersed uniformly.

From the above results, it is possible to obtain a paste-like composition having a smooth feel and water content for the first time by kneading the polymerization product and the polyether silicone by applying sufficient shearing force, and no shearing force is applied. It will be appreciated that the conditions do not result in such a pasty composition.

Example 2 100 parts by weight of the polymerization product (A) synthesized in Example 1 and the average composition formula (1)
Moreover, 100 parts by weight of a polyether silicone purified by the method described in JP-A-2-302438 is dispersed and mixed, and then sufficiently kneaded under a shearing force by a three-roll mill and swollen to obtain a paste-like silicone composition. (A)
Got

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained. Also,
When this composition was allowed to stand in a sealed state at a temperature of 60 ° C. for 10 days, no offensive odor was observed.

[Example 3] As a charging material, trimethylsilyl end-capped dimethylmethylhydrogenpolysiloxane (average molecular weight 2280, Si-H 3.1 mol%)
146 g, dimethylvinylsilyl end-capped dimethylpolysiloxane (average molecular weight 5000, vinyl group 1.5 mol%) 355 g, and octamethylcyclotetrasiloxane 2000 g were added, and 0.3 g of a 2% isopropanol solution of chloroplatinic acid was added. A polymerization product (B) was obtained in the same manner as in Example 1 except for the above.

100 parts by weight of this polymerization product (B) and a polyether silicone 10 having an average composition formula (2).
0 parts by weight was dispersed and mixed, and then sufficiently kneaded by a three-roll mill under a shearing force and swollen to obtain a pasty silicone composition of the present invention.

[0050]

[Chemical 6]

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained.

Next, 100 parts by weight of the polymerization product (B),
The average composition formula is shown by (2) and
100 parts by weight of polyether silicone purified by the method described in No. 438 was dispersed and mixed, and then sufficiently kneaded under a shearing force by a three-roll mill and swollen to obtain a paste-like silicone composition (b). ..

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained. Also,
When this composition was allowed to stand in a sealed state at a temperature of 60 ° C. for 10 days, no offensive odor was observed.

Example 4 As a charging material, dimethylhydrogensilyl end-capped dimethylpolysiloxane (average molecular weight 2280, Si—H 3.1 mol%) 250
g, trimethylsilyl end-blocked dimethylmethylvinylpolysiloxane (average molecular weight 5000, vinyl group 1.5 mol%) 613 g, and dimethylpolysiloxane (viscosity 5
0cSt) (1294 g) was added, and a polymerization product (C) was obtained in the same manner as in Example 1 except that 0.5 g of a 2% isopropanol solution of chloroplatinic acid was added.

100 parts by weight of this polymerization product (C) and a polyether silicone 10 having an average composition formula (3).
0 parts by weight was dispersed and mixed, and then sufficiently kneaded by a three-roll mill under a shearing force and swollen to obtain a pasty silicone composition of the present invention.

[0056]

[Chemical 7]

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained.

Next, 100 parts by weight of the polymerization product (C),
The average composition formula is shown by (3), and the method is disclosed in JP-A-2-302.
100 parts by weight of polyether silicone purified by the method described in No. 438 was dispersed and mixed, and then sufficiently kneaded under a shearing force by a three-roll mill and swollen to obtain a paste-like silicone composition.

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained. Also,
When this composition was allowed to stand in a sealed state at a temperature of 60 ° C. for 10 days, no offensive odor was observed.

Example 5 As a charging material, dimethylhydrogensilyl end-capped dimethylmethylhydrogenpolysiloxane (average molecular weight 11200, Si--H)
18.4 mol%) 30 g, trimethylsilyl end-capped dimethylmethylvinylpolysiloxane (average molecular weight 142
00, vinyl group 0.52 mol%) 1140 g, and phenyltris (trimethylsiloxy) silane 1170 g were added, and a 2% isopropanol solution of chloroplatinic acid was added to 0.10 g.
A polymerization product (D) was obtained in the same manner as in Example 1 except that 5 g was added.

100 parts by weight of this polymerization product (D) and a polyether silicone 10 having an average compositional formula (4).
0 parts by weight was dispersed and mixed, and then sufficiently kneaded by a three-roll mill under a shearing force and swollen to obtain a pasty silicone composition of the present invention.

[0062]

[Chemical 8]

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained.

Next, 100 parts by weight of the polymerization product (D),
The average composition formula is shown by (4), and the method is disclosed in
100 parts by weight of polyether silicone purified by the method described in No. 438 was dispersed and mixed, and then sufficiently kneaded under a shearing force by a three-roll mill and swollen to obtain a paste-like silicone composition.

100 parts by weight of this silicone composition and 1 part of water
When 00 parts by weight was mixed, water was easily dispersed by only stirring, and a uniform creamy composition was obtained. Also,
When this composition was allowed to stand in a sealed state at a temperature of 60 ° C. for 10 days, no offensive odor was observed.

Example 6 After 100 parts by weight of the polymerization product (B) synthesized in Example 3 and 100 parts by weight of a polyether silicone having an average composition formula (1) were dispersed and mixed,
The paste-like silicone composition of the present invention was obtained by sufficiently kneading and swelling with a three-roll mill under shearing force.

100 parts by weight of this silicone composition and high molecular weight dimethylpolysiloxane (viscosity 10 million cSt)
10 parts by weight, and dimethylpolysiloxane (viscosity 20c
St) 40 parts by weight were mixed and dissolved, and then 50 parts by weight of water was mixed. As a result, water was easily dispersed only by stirring,
A homogeneous creamy composition was obtained.

Example 7 Face Cream (Formulation) (Parts by Weight) (1) Composition (a) 10 Obtained in Example 2 (2) Trioctanoic Acid Glyceride 30 (3) 1,3-Butylene Glycol 20 (4) Purified water 40 (5) Perfume proper amount (Production method) The components (1) and (2) were mixed to form an oil phase, and the components (3) and (4) were mixed to form an aqueous phase. The aqueous phase was added to the oil phase while stirring to obtain an emulsion, and then the component (5) was further added and filled in a container to obtain a product. The face cream obtained as described above had a good spread, was moist, and had a good feeling and usability after use.

Example 8 Foundation (Prescription) (Parts by Weight) (1) Composition (b) 1.6 (2) Dimethylpolysiloxane (Viscosity 6 cSt) 8.4 (3) Obtained in Example 3 Trioctanoic acid glyceride 4 (4) Diglycerin triisostearate 6 (5) Squalane 8 (6) Methylphenylpolysiloxane 10 (7) Titanium oxide 23 (8) Mica 14 (9) Pigment 5 (10) Purified water 20 ( Production method) After dispersing and mixing the above components (1) and (2),
After sufficiently kneading with a three-roll mill and swelling to obtain a silicone composition, components (3) to (6) were added to form an oil phase.
Next, the components (7) to (9) are mixed and pulverized to make them uniform, which is added to the above oil phase and kneaded with a three roll mill,
The component (10) was further added to this kneaded product while stirring and filled in a container to obtain a product. The foundation obtained as described above had no stickiness, had a refreshing feeling when used, and had a good spreadability and a uniform makeup film, and had excellent makeup retention.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display area C08L 83/07

Claims (6)

[Claims] 1. An organohydrogenpolysiloxane having an average of 1.5 or more hydrogen atoms bonded to silicon atoms in the molecule and an aliphatic unsaturated group bonded to a silicon atom in the molecule. The organopolysiloxane containing 1.5 or more has a viscosity of 100 cSt at 25 ° C.
The following polymerization products obtained by addition polymerization in the presence of a low-viscosity silicone oil, and (b) the following general formula (I): (In the formula, R ¹ is a substituted or unsubstituted monovalent hydrocarbon group,
R ² is a monovalent organic group represented by _{-C n H 2n O (C 2} H 4 O) c (C 3 H 6 O) d R 3, R 3 is C1-5 hydrogen or C An alkyl group or an acetyl group, a and b are numbers 1.0 ≦ a ≦ 2.5 and 0.001 ≦ b ≦ 1.0, c is an integer from 2 to 200, and d is an integer from 0 to 200. And c + d is 2 to 300, and n is an integer of 2 to 6. And a polyoxyalkylene group-containing organopolysiloxane represented by the formula (1). 2. The composition according to claim 1, wherein the organopolysiloxane as the component (b) has an HLB of 10 or less. 3. (a) An organohydrogenpolysiloxane having an average of 1.5 or more hydrogen atoms bonded to silicon atoms in the molecule, and an aliphatic unsaturated group bonded to silicon atoms in the molecule on average. The organopolysiloxane containing 1.5 or more has a viscosity of 100 cSt at 25 ° C.
For the polymerization product obtained by addition polymerization in the presence of the following low-viscosity silicone oil, (b) the following general formula (I) (In the formula, R ¹ is a substituted or unsubstituted monovalent hydrocarbon group,
R ² is a monovalent organic group represented by _{-C n H 2n O (C 2} H 4 O) c (C 3 H 6 O) d R 3, R 3 is C1-5 hydrogen or C An alkyl group or an acetyl group, a and b are numbers 1.0 ≦ a ≦ 2.5 and 0.001 ≦ b ≦ 1.0, c is an integer from 2 to 200, and d is an integer from 0 to 200. And c + d is 2 to 300, and n is an integer of 2 to 6. ) A method for producing a hydrous silicone composition, which comprises kneading an organopolysiloxane having a polyoxyalkylene group represented by the formula (1) under a shearing force. 4. The method according to claim 3, wherein the organopolysiloxane as the component (b) has an HLB of 10 or less. 5. As the organopolysiloxane of the component (b), water, an aqueous solution having a pH of 7 or less, or an acid substance is used to obtain p.
The method according to claim 3 or 4, wherein a purified polyether silicone that has been treated to remove an offensive odor under H7 or less is used. 6. A cosmetic containing the hydrous silicone composition according to claim 1.