JP2002275028A - Water-in-oil type emulsified cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To erase a water-in-oil type emulsified cosmetic excellent in usability and stability and having characteristics free from tackiness but having slip, particularly when applied to hair or skin. SOLUTION: This water-in-oil type emulsified cosmetic comprises silicone oil and an ester oil in 9/1 to 1/9 weight ratio of the silicone oil to the ester oil and comprises (A) one or more kinds of crosslinking type polyether-modified silicones represented by formula (I) [(l) is 3-20; (m) is 10-200; (n) is 1.0-10.0] and (B) one or more kinds of alkyl group-containing crosslinking type polyether- modified silicones represented by formula (II) [(p) is 5-30; (q) is 1-10; (r) is 3-35; (s) is 5-100] as the silicone oils and has >=50 wt.% content of water phase component. The cosmetic is produced according to a conventional method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a water-in-oil type emulsified cosmetic having excellent usability and stability. More specifically,
A high internal aqueous phase having an aqueous phase component content of 50.0% by weight or more, which is excellent in stability over time, and is excellent in usability such that it has no stickiness and spreads when applied to hair or skin. It relates to a water-in-oil type emulsified cosmetic.

[0002]

2. Description of the Related Art Conventionally, water-in-oil (W / O) emulsified cosmetics have been used as cosmetics for protecting skin and hair and providing flexibility. As the emulsifier of this W / O type emulsified cosmetic, generally, polyhydric alcohol fatty acid ester activators such as glycerin fatty acid ester and sorbitan fatty acid ester and polyoxyalkylene-modified organopolysiloxane activator are used.

[0003] However, this W / O type emulsion is
At a low temperature, separation of an oil phase, which is a continuous phase, is likely to occur due to aggregation of water droplets, and at a high temperature, particles increase due to coalescence of the water droplets and settle, and an oil phase separation in which the upper layer is made up of only oil tends to occur. This tendency is particularly strong in a W / O emulsion having a high internal water phase in which water is 50% by weight or more of the whole.
In view of such a problem, although a method of increasing the viscosity by blending a large amount of wax has been adopted to improve the temperature stability, the stability at high temperatures is also insufficient by this method.

As described above, this W / O type emulsion has advantages such as protection of hair and imparting flexibility, but since the outer phase is oily, it is sticky, spreads weight and hardness when used. Also, there is a problem to be improved in terms of usability. In order to improve such usability, it is desirable to select and mix preferred oils from a wide range of oils from polar oils to non-polar oils. However, there is a problem that a stable water-in-oil emulsified cosmetic cannot be obtained in a system containing a non-polar oil with a polyoxyalkylene-modified organopolysiloxane activator.

[0005] As described above, in the conventional water-in-oil type emulsified cosmetics, there is a restriction in selecting an oil component, and as a result, it is extremely difficult to provide a wide spread in useability. There was a technical problem. On the other hand, for example, Japanese Patent Application Laid-Open No. 6-40847 proposes a W / O emulsion using a crosslinked polyether-modified silicone composition as an emulsifier to solve the above problem. Usability such as non-stickiness and lightness of spreadability is not always sufficient, and there is a point to be improved.

[0006]

SUMMARY OF THE INVENTION In view of the above circumstances, the present inventor has conducted intensive studies to solve the above-mentioned problems, and as a result, has solved the above-mentioned problems of the conventional water-in-oil type emulsified cosmetics. Water-in-oil emulsion cosmetics, that is, water-in-oil emulsion cosmetics of the present invention, which have excellent stability over time, have no stickiness when applied to hair or skin, and have excellent usability such that they have spreadability. The fee has been completed.

Accordingly, an object of the present invention is to provide a water-in-oil type emulsified cosmetic having excellent stability over time and excellent usability. That is, an object of the present invention is to provide a water-in-oil type emulsified cosmetic which is excellent in stability over time, non-greasy and light in spreadability.

[0008]

The water-in-oil type emulsified cosmetic of the present invention having excellent usability and stability has been developed under the above-mentioned circumstances. It contains a silicone oil and an ester oil as phase components, and the weight ratio of the silicone oil and the ester oil is silicone oil /
Ester oil = 9/1 to 1/9, and the following crosslinked polyether-modified silicone (A) as a silicone oil
And the following alkyl group-containing crosslinked polyether-modified silicone (B), and the content of the aqueous phase component is 50% by weight or more. (A) One or more cross-linked polyether-modified silicones of the following structural formula (I). (B) One or more alkyl group-containing crosslinked polyether-modified silicones of the following structural formula (II).

[0009]

Embedded image [However, in the structural formula (I), 1 is 3 to 20, m is 1
0 to 200, n is 1.0 to 10.0. ]

[0010]

Embedded image [However, in the structural formula (II), p is 5 to 30, and q is 1
-10, r is 3-35, s is 5-100. ]

Further, in the water-in-oil type emulsified cosmetic of the present invention, the crosslinked polyether-modified silicone of (A) is obtained by shearing 100 parts by weight of the crosslinked polyether-modified silicone and 10 to 1000 parts by weight of silicone oil. Formulated as a paste-like silicone composition obtained by kneading under force,
Similarly, the alkyl group-containing crosslinked polyether-modified silicone (B) is composed of 100 parts by weight of a long-chain alkyl group-containing crosslinked polyether-modified silicone and 10 to 10 hydrocarbon oils.
It can also be prepared by mixing as a paste-like silicone composition obtained by kneading the mixture with a weight of 00 under a shearing force.

The water-in-oil type emulsified cosmetic of the present invention thus obtained is excellent in stability over time and usability. That is, the water-in-oil type emulsified cosmetic of the present invention is also excellent in stability over time and usability, and in particular, has excellent properties in use performance, such as being non-sticky and light in spreading.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION In the following, embodiments of the water-in-oil type emulsified cosmetic of the present invention will be described specifically, but the present invention is not limited thereto, and is understood by the claims. Needless to say, this is done. The water-in-oil emulsified cosmetic of the present invention is a water-in-oil emulsion in which the content of an aqueous phase component is 50.0% by weight or more of all components and the aqueous phase component is dispersed in an oil phase component of a continuous phase. Type (W / O
Type) emulsified cosmetic.

Specific forms (dosage forms) of the cosmetic include milky or creamy products such as milky lotions, skin creams, hair creams, liquid foundations, eyeliners, mascaras, and eye shadows. The cosmetic of the present invention is not limited to those exemplified above, but falls under the cosmetic of the present invention as long as it is the above-mentioned water-in-oil emulsion cosmetic.

Since the present invention is as described above, the water-in-oil type emulsified cosmetic comprises a crosslinked polyether-modified silicone of the structural formula (I) and an alkyl group-containing crosslinked of the structural formula (II). It is essential to contain two types of polyether-modified silicone of the type polyether-modified silicone. In addition, the weight ratio of the silicone oil containing both modified silicones and the ester oil must be silicone oil / ester oil = 9/1 to 1/9, and the content of the aqueous phase component is 50%. % By weight or more.

The cross-linked polyether-modified silicone of the component (A) represented by the structural formula (I) used in the present invention is a polymer obtained by cross-linking methyl hydrogen polysiloxane with diallyl polyether at both ends, and comprises an emulsifier. It acts as. As the cross-linked polyether-modified silicone, it is preferable to use a paste-like polyether-modified silicone composition which has been kneaded with a silicone oil under a shearing force in advance. It may be blended as a cosmetic ingredient.

The paste-like polyether-modified silicone composition from the polyether-modified silicone and the silicone oil can be kneaded after mixing with other cosmetic components, if necessary. In producing the paste-like polyether-modified silicone composition, 10 to 1000 parts by weight, preferably 20 parts by weight, of a low-viscosity silicone oil having a viscosity at 25 ° C. of 100 mPa · s or less with respect to 100 parts by weight of the cross-linked polyether-modified silicone. It is preferable to obtain the low viscosity silicone oil by kneading under a shearing force of about 500 parts by weight.

The content of the silicone oil in the paste composition at that time is preferably as described above.
The reason is that if the amount is less than the above range, a stable and good gel structure cannot be maintained, and if the amount exceeds the above range, the weight is felt on the skin and the feeling of use deteriorates. In addition, KSG-21 marketed as a product made by Shin-Etsu Chemical Co., Ltd. can be used as the paste composition.

In the crosslinked polyether-modified silicone represented by the structural formula (I) used in the present invention, 1 is 3 to 2
Must be 0. This is because if it is less than 3, the emulsifiability of water is poor, and if it exceeds 20, the swelling property in silicone oil becomes insufficient. Also, m must be 10 to 200, because if it is less than 10, it will not swell sufficiently in silicone oil, and if it exceeds 200, the emulsifiability of water will be poor.

Further, n must be 1.0 to 10.0. The reason for this is that if it is smaller than 1.0, a three-dimensional structure cannot be formed, the emulsifiability of water becomes poor, and even if it is kneaded with silicone oil, it does not easily become a paste composition. Conversely, if it exceeds 10.0, the cross-linking density of the three-dimensional structure becomes too high, so that a kneading treatment with silicone oil does not result in a stable paste-like composition.

The low-viscosity silicone oil used in forming the paste-like composition may be either linear or branched. For example, methylpolysiloxane, methylphenylpolysiloxane, ethylpolysiloxane, ethylpolysiloxane, Examples include chain polysiloxanes such as methylpolysiloxane and ethylphenylpolysiloxane, and cyclic dimethylpolysiloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane. These may be used alone or as a mixture of two or more. May be used.

The above-mentioned crosslinked polyether-modified silicone is used in an amount of 0.1 to 10.0% by weight in the water-in-oil type emulsified cosmetic.
It is preferable to mix them. If it is less than 0.1% by weight, 50.0% by weight or more of water cannot be emulsified in the internal phase.
If the content is more than 0.0% by weight, the spread is poor and the feeling of use is heavy, which is not preferable. When the crosslinked polyether-modified silicone is blended as a paste-like polyether-modified silicone composition, it is preferable that the blending amount of the crosslinked polyether-modified silicone is selected so as to be within the above range.

The crosslinked polyether-modified silicone containing a long-chain alkyl group (B) represented by the above structural formula (II), which is another essential component of the present invention, comprises methyl hydrogen polysiloxane and lauryl alcohol. Is a polymer in which lauryl group-introduced polysiloxane formed by first reacting the above is crosslinked with diallyl polyether at both ends, and acts as an emulsifier.

As the long-chain alkyl group-containing crosslinked polyether-modified silicone, a paste-like polyether-modified silicone composition previously kneaded with a hydrocarbon oil under shearing force is preferably used. Polyether-modified silicone and hydrocarbon oil may be blended as cosmetic ingredients. In some cases, the kneading treatment can be performed after blending the polyether-modified silicone and the hydrocarbon oil with other cosmetic ingredients and the like.

In producing this paste-like polyether-modified silicone composition, a low-viscosity hydrocarbon oil having a viscosity of 100 mPa · s or less at 25 ° C. is 100 to 10 parts by weight of the crosslinked polyether-modified silicone.
It is preferable to obtain by kneading 00 parts by weight, preferably 20 to 500 parts by weight, of a low-viscosity hydrocarbon oil under a shearing force. That is, if the amount of hydrocarbon oil in the paste-like composition is less than the above range, a stable and good gel structure cannot be maintained, and if the amount exceeds the above range, weight is felt on the skin,
This is because it is not preferable because the usability is deteriorated. In addition,
As the paste composition, KSG-31, 32, 33, or the like, which is commercially available as a product of Shin-Etsu Chemical Co., Ltd., can be used.

In the long-chain alkyl group-containing crosslinked polyether-modified silicone represented by the structural formula (II) used in the present invention, p must be 5 to 30. If it is less than 5, the emulsifiability of water is poor, and if it exceeds 30,
This is because the swelling property to the hydrocarbon oil becomes insufficient. Furthermore, q must be between 1 and 10. If it is smaller than 1, a three-dimensional structure cannot be formed, and the emulsifiability of water is inferior. Even if it is kneaded with a hydrocarbon oil, it is difficult to form a paste composition. Conversely, if it exceeds 10, the cross-linking density of the three-dimensional structure becomes too high, so that a kneading treatment with a hydrocarbon oil does not result in a stable paste composition.

Also, r must be 3-35. This is because if it is less than 3, it will not swell sufficiently with respect to the silicone oil blended in the emulsified composition, and if it exceeds 35, the emulsifiability of water will be poor. Furthermore, s is 5
Must be 100. This is because if it is less than 5, it will not swell sufficiently in the hydrocarbon oil, and if it exceeds 100, the emulsifiability of water will be poor.

The low-viscosity hydrocarbon oil used in forming the paste composition may be linear or branched, and preferably has a viscosity at 25 ° C. of 100 mPa · s or less. Are, for example, isodecyl vivalate, 2-ethylhexyl isononanoate, isononyl isononanoate, isopropyl myristate, isodecyl isononanoate, ethylene glycol dioctanoate, di-2-
Neopentyl glycol ethylhexanoate, isostearyl bivalate, isopropyl palmitate, hexyl laurate, octyl isopalmitate, isocetyl octanoate, isotridecyl isononanoate, isopropyl isostearate, ethyl isostearate, di-2-ethylhexyl succinate, 2 -Isostearyl ethylhexanoate, diisobutyl adipate, and glyceryl tri-2-ethylhexanoate.

Further, octyl palmitate, cetyl 2-ethylhexanoate, neopentyl glycol dicaprate, isostearic acid, isoparaffin, octyldodecyl dimethyloctanoate, liquid paraffin, 2-hexyldecyl isostearate, isostearyl alcohol Octyldodecanol, stearyl 2-ethylhexanoate, hexyldecanol, octyldodecyl lactate, isocetyl myristate, 2-ethylhexyl hydroxystearate, squalane, decyltetradecanol, octyldodecyl isostearate, isostearyl isostearate, jojoba oil, oleyl Alcohol, octyldodecyl myristate, mink oil and the like are also included.

The long-chain alkyl group-containing crosslinked polyether-modified silicone is used in water-in-oil type emulsified cosmetics.
It is preferable to add 1 to 10.0% by weight. If it is less than 0.1% by weight, 50.0% by weight or more of water cannot be emulsified in the inner phase, and if it is more than 10.0% by weight,
This is because spreadability is poor and the feeling of use is heavy, which is not preferable. When blending the long-chain alkyl group-containing crosslinked polyether-modified silicone as a paste-like polyether-modified silicone composition, it is preferable to select the amount of the crosslinked polyether-modified silicone therein so as to fall within the above range. preferable.

As described above, in the present invention, the blending ratio by weight of silicone oil and ester oil blended as the oil phase component is silicone oil / ester oil = 1/9 to 9/1.
And a high internal water phase water-in-oil type emulsified cosmetic which is 50% by weight or more of the water phase component. The reason for setting such a mixing ratio is that if the ratio is out of the above range, disadvantages in usability such as poor spread and stickiness will be observed.

The term "silicone oil" used herein refers to two types of poly (silicone), a cross-linked polyether-modified silicone of the structural formula (I) and an alkyl group-containing cross-linked polyether-modified silicone of the structural formula (II). In addition to containing the ether-modified silicone, not only that, but also the kneading treatment with the cross-linked polyether-modified silicone of the structural formula (I) under shearing force in advance to form the polyether-modified silicone composition It contains oily silicones of various structures including various modified silicones that can be blended in the water-in-oil type emulsified cosmetic of the present invention such as silicone oil used.

In the present invention, the reason why the silicone oil / ester oil is blended as described above is that if the above range is not met, disadvantages such as poor spread and sticky feeling in use will be observed. In the water-in-oil type emulsified cosmetic of the present invention, the oil phase component contains 10% by weight to 50% by weight.
It is necessary to be blended in a proportion of less than 10% by weight. If it is less than 10% by weight, it is difficult to make the cosmetic a water-in-oil emulsion composition. Conversely, if it is blended at 50.0% by weight or more,
This is because the amount of water in the internal phase is too small, and the feeling of moisture is lacking in terms of usability, which is not preferable.

The oil phase components used in the cosmetic of the present invention include, in addition to the components (A) and (B), silicone oil and ester oil, oil components used in ordinary cosmetic emulsion compositions. Can be blended within a range that does not lack uniformity. As such an oil component, any of natural animal and vegetable oils and synthetic oils can be used, for example, liquid paraffin, liquid such as squalane, paste-like or solid hydrocarbon,
Examples include waxes, higher fatty acids, higher alcohols, esters, glycerides, silicone oils, and the like.

In the present invention, as described above, the water phase component is blended together with the oil phase component. that is,
It contains water or water as a main component, and contains various water-soluble components.
0.0-90.0% by weight is blended, and a water-in-oil type emulsified cosmetic having a high internal water phase can be obtained. At that time, from the viewpoint of imparting a moist feeling, it is more preferable to add 60.0% by weight or more. If the amount is less than 50.0% by weight, the composition lacks moisture, and if it exceeds 90% by weight, it is difficult to obtain a water-in-oil emulsion composition.

The aqueous phase component of the present invention may contain up to 30.0% by weight of ethanol. In general, it is considered difficult to incorporate ethanol into a water-in-oil emulsified cosmetic at a high content of 10% by weight or more from the viewpoint of stability. However, according to the present invention, it can be blended up to 30.0% by weight, and the high blending of ethanol of 10% by weight or more makes it less sticky in terms of usability,
It is possible to obtain a water-in-oil type emulsified cosmetic which is excellent in terms of spreadability and lightness.

[0037]

The present invention is described below with reference to a plurality of examples and comparative examples. However, the present invention is not limited to these examples and comparative examples, but is defined by the appended claims. Needless to say.

[Examples 1 to 4 and Comparative Examples 1 to 7] "Table 1"
Alternatively, a hair treatment cream, which is a water-in-oil type emulsified cosmetic having a high internal aqueous phase, is manufactured according to the formulation shown in Table 2, and the obtained cream is subjected to a stability test and a test conducted by a female expert panel (10 persons). A use test was performed to evaluate the stability and the usability (stickiness, spreadability). The stability test result is 5
The appearance after standing at 0 ° C. for one month, and the preference during use in the actual use test were determined according to the following evaluation criteria. The results are also shown in Table 1 or Table 2.

The method for producing the treatment cream used in this performance test is as follows. <Production method of creams of Examples 1 to 4 and Comparative Examples 1 to 3> (1) and / or (2) were mixed with (3) and / or (4), and the mixture was brought to room temperature with a high-speed stirrer (disper). Then, gradually add the aqueous phases (8) to (11) to this oil solution,
The desired W / O type emulsified hair treatment cream was obtained.

<Production Method of Creams of Comparative Examples 4 to 6> (1)
(2) (5) to (7) are heated to 70 ° C. and uniformly dissolved to form a uniform oil phase. Then, the aqueous phases (8) to (11), which had been previously heated and uniformly dissolved at 70 ° C., were gradually added to the oil phase at room temperature with a high-speed stirrer (disper), and the target W / An O-type hair treatment cream was obtained.

<Preparation of Cream of Comparative Example 7> (1)
(2) Heat (4) to (7) to 70 ° C. and uniformly dissolve to form a homogeneous oil phase. Then, the aqueous phases (8) to (11), which had been previously heated and uniformly dissolved at 70 ° C., were gradually added to the oil phase at room temperature with a high-speed stirrer (disper), and the target W / An O-type hair treatment cream was obtained.

[0042]

[Table 1]

[0043]

[Table 2]

[Evaluation Criteria for Stability] A: No separation was observed. Δ: Almost no separation was observed. ×: Separation of the liquid phase (oil phase or aqueous phase) occurred.

[Evaluation Criteria for Usability] (Used by applying to hair) <Stickiness> ：: All 10 persons were judged to have no stickiness and to have durable usability. ：: Seven to nine people were judged to have no stickiness and to have moist usability. Δ: Three or more and less than seven were judged to have no stickiness and to have moist usability. X: Less than 3 persons were judged to have no stickiness and to have moist usability.

<Expansion> ◎: All of the 10 persons were judged to be lightly spread and had smooth usability. ：: 7 to 9 people judged that the spread was light and that they had smooth usability. Δ: Three or more and less than seven people judged that the spread was light and that they had smooth usability. X: Less than 3 persons judged that the spread was light and had smooth usability.

[Performance Test Results] The performance test results described above are as follows. That is, "Table 1" and "Table 2"
From the fact that the crosslinked polyether-modified silicone represented by the structural formula (I) and the long-chain alkyl group-containing polyether-modified silicone represented by the structural formula (II) are used as emulsifiers, and the weight of silicone oil and ester oil is % Of silicone oil / ester oil = 1/9 to 9/1, and the hair treatment cream of Examples 1 to 4 containing 50.0% by weight or more of an aqueous phase component in the whole emulsified composition. Has excellent stability and usability.

Hereinafter, other embodiments of the present invention will be described. [Example 5] Skin cream weight% (1) Liquid paraffin 2.0 (2) Decamethylcyclopentasiloxane 6.0 (3) Cetyl 2-ethylhexanoate 6.0 (4) 1,3-butylene glycol 3 0.0 (5) Paste-form polyether-modified silicone composition 3.0 [100 parts by weight of a crosslinked polyether-modified silicone having l = 3 to 10, m = 50, and n = 2.5 to 4 in the structural formula (I)] 500 parts by weight of tecamethylcyclopentasiloxane and kneaded under shearing force] (6) Paste long chain alkyl group-containing polyether 2.0 modified silicone composition [Structural formula (II), p = 8 to 20, q = 1.5-6, r = 5-30, s = 10-90 100 parts by weight of a polyether-modified silicone containing a long-chain alkyl group, kneaded with 600 parts by weight of isononyl isononanoate under shearing force] (7) Ion exchange water 76.75 ( ) Hydrolyzed collagen 0.5 (9) Paraben 0.15 (10) ethanol 3.0 (11) Perfume 0.1

<Production method> (1), (2), (3), (5)
Dissolve (6) and prepare an oil phase. Next, (4) and (7)
The aqueous phase obtained by uniformly mixing, stirring and dissolving (11) was gradually added to the oil phase at room temperature with stirring using a high-speed stirrer (disper) to obtain a target skin cream.

<Properties of Product> The obtained skin cream was evaluated in the same manner as in Examples 1 to 4. As a result, the skin cream was excellent in usability (usability evaluation: both stickiness and spreading), and applied to the skin. When it did, it gave moisture, spread lightly, had a moist feeling, and was not sticky and had good stability (stability evaluation: ○).

Example 6 Hair Styling Cream Weight% (1) Isoparaffin 3.0 (2) Dimethylpolysiloxane (500 mPa · s) 7.0 (3) 2-Hexyldecyl isostearate 10.0 (4) Propylene Glycol 2.5 (5) glycerin 2.5 (6) pasty polyether-modified silicone composition 1.5 [crosslinking of l = 10, m = 30-70, n = 3-5 in structural formula (I)] 100 parts by weight of modified polyether modified silicone and 300 parts by weight of methylphenylpolysiloxane are kneaded under shearing force] (7) Paste long chain alkyl group-containing polyether 4.0 modified silicone composition [Structural formula ( II), p = 15-25, q = 3-8, r = 10-20, s = 30-70 100 parts by weight of polyether-modified silicone containing long-chain alkyl group is sheared with 800 parts by weight of glycerin trioctanoate Kneading under force (8) Acrylic resin alkanolamine liquid 3.0 [Trade name: Plus size L-53P, manufactured by Goyo Chemical Co., Ltd.] (9) Ion-exchanged water 54.3 (10) Ethanol 12.0 ( 11) Paraben 0.1 (12) Fragrance 0.1

<Production method> (6) and (7) are dissolved in (1) and (2) to prepare an oil phase. Next, (4) (5) (8)-
The aqueous phase obtained by mixing, stirring and dissolving (12) was added to the oil phase with stirring using a high-speed stirrer (disper) at room temperature to obtain the desired hair styling cream.

<Properties of Product> The obtained hair styling cream was evaluated in the same manner as in Examples 1 to 4, and was found to be excellent in usability (usability evaluation: both sticky and stretchable ◎), non-greasy, It had a moist feel and good stability (stability evaluation: ○).

Example 7 W / O Emulsion Type Foundation Weight% (1) Squalane 1.0 (2) Dimethylpolysiloxane (6 mPa · s) 4.0 (3) Octyl palmitate 3.0 (4) Di Propylene glycol 2.5 (5) Paste-form polyether-modified silicone composition 3.5 [100 parts by weight of a cross-linked polyether-modified silicone having l = 7, m = 50, n = 40 in the structural formula (I)] (6) Paste long chain alkyl group-containing polyether 1.0 modified silicone composition [Structural formula (II), p = 8 to 20] 100 parts by weight of a long-chain alkyl group-containing polyether-modified silicone having q = 1.5 to 6, r = 5 to 30, and s = 5 to 60 were kneaded with 500 parts by weight of 2-ethylhexyl succinate under shearing force. Thing] (7) Ion exchange 65.6 (8) Ethanol 1.0 (9) Sodium chloride 1.5 (10) Potassium chloride 1.5 (11) Paraben 0.1 (12) Dextrin palmitate treated titanium dioxide 5.0 (13) Palmitic acid Dextrin-treated mica 5.0 (14) Dextrin palmitate-treated talc 2.5 (15) Dextrin palmitate-treated iron oxide 2.5 (16) Antioxidant 0.1 (17) Fragrance 0.2

<Production method> (1), (2), (3) and (5)
(6) is dissolved, and then (12) to (15) are mixed and dispersed to prepare an oil phase. Next, (4) (7) (11) (16)
The aqueous phase in which (17) was uniformly dissolved was gradually added at room temperature to the oil phase with stirring using a high-speed stirrer (disper) to obtain a desired W / O emulsified foundation.

<Properties of the product> The obtained W / O emulsion type foundation was evaluated in the same manner as in Examples 1 to 4, and was found to be excellent in usability (usability evaluation: both stickiness and spreading). When applied to the skin, it gave moisture, spread lightly, had a moist feel, was non-greasy, and had good stability (stability evaluation: ○).

[0057]

According to the present invention, the oil phase component contains silicone oil and ester oil, and the weight ratio of silicone oil to ester oil is from silicone oil / ester oil = 9/1 to 1/9.
Water-in-oil type containing 1/9 and containing, as silicone oil, a crosslinked polyether-modified silicone and an alkyl group-containing crosslinked polyether-modified silicone, and having an aqueous phase component content of 50% by weight or more. It provides an emulsified cosmetic. As a result, the provided cosmetics of the present invention are excellent in stability over time and usability, as is apparent from the description of the above Examples and Embodiments of the present invention. Is light and has excellent characteristics in use performance. As described above, the cosmetic of the present invention has an excellent effect.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61K 7/11 A61K 7/11 7/48 7/48 F term (Reference) 4C083 AB052 AB232 AB242 AB332 AB432 AB442 AC022 AC102 AC122 AC301 AC352 AC391 AC392 AC482 AC542 AC582 AD021 AD042 AD092 AD152 AD161 AD162 AD172 AD222 AD432 CC05 CC12 CC32 CC33 DD08 DD32 EE06 EE12 EE28

Claims (5)

[Claims] 1. An oil phase component comprising a silicone oil and an ester oil, wherein the weight ratio of the silicone oil and the ester oil is from silicone oil / ester oil = 9/1 to 1/9. An oil containing a crosslinked polyether-modified silicone (A) and the following alkyl group-containing crosslinked polyether-modified silicone (B), and having an aqueous phase component content of 50% by weight or more. Water type emulsified cosmetic. (A) One or more cross-linked polyether-modified silicones of the following structural formula (I). [However, in the structural formula (I), 1 is 3 to 20, m is 10 to 200, and n is 1.0 to 1
0.0. ] (B) One or more alkyl group-containing crosslinked polyether-modified silicones of the following structural formula (II). [However, in the structural formula (II), p is 5 to 30, q is 1 to 10, r is 3 to 35, and s is 5 to 100. ] 2. The crosslinked polyether-modified silicone of the structural formula (I) is a paste-like polyether-modified silicone composition kneaded with a silicone oil under shearing force. The ratio of the crosslinked polyether-modified silicone to the silicone oil is 100 parts by weight: 10 to 1000 parts by weight, and the alkyl group-containing polyether-modified silicone of the structural formula (II) is kneaded with a hydrocarbon oil under shearing force. 2. A paste-like polyether-modified silicone composition as described above, wherein the ratio of the crosslinked polyether-modified silicone to the hydrocarbon oil in the composition is 100 parts by weight: 10 to 1000 parts by weight.
The water-in-oil type emulsified cosmetic according to the above. 3. The content of the component (A) is from 0.1 to 10.0.
The water-in-oil type emulsified cosmetic according to claim 1 or 2, wherein the content of the component (B) is 0.1 to 10.0% by weight, and the content of the hydrocarbon oil is 3.0% by weight or more. . 4. The water-in-oil type emulsified cosmetic according to claim 1, wherein the content of the aqueous phase component is 60.0% by weight or more. 5. The water-in-oil type emulsified cosmetic according to claim 1, wherein the content of ethanol as an aqueous phase component is 10.0 to 30.0% by weight of the whole composition. Fees.