JP2021080234A - Emulsion composition - Google Patents

Abstract

To provide an emulsion composition which reduces a filmy feeling of the skin after application, has a refreshing feeling of use and can obtain a lasting feeling of a moisturizing effect.SOLUTION: There is provided an emulsion composition which comprises the following components (A), (B) and (C): (A) 0.001 to 10 mass% of ceramides, (B) 0.001 to 10 mass% of a compound represented by the general formula (1); (Z1 is glycerin, sorbitan, sorbitol or a sucrose residue, Y1 is an ester linkage group or an ether linkage group, R is a hydrocarbon group having 14 to 22 carbon atoms, m is a number of 1 to 4) and (C) 0.1 to 25 mass% of an alkylene oxide derivative represented by the general formula (2) (n is an integer of 1 to 10, Z2 is a hydrogen atom or a group obtained by removing n hydroxy groups from a hydroxy compound having 1 to 30 carbon atoms).SELECTED DRAWING: None

Description

The present invention relates to emulsified compositions.

In the outermost layer of the skin, the stratum corneum, there are intercellular lipids that fill the gap between the stratum corneum cells. Most of them have an α-gel structure, which suppresses the invasion of substances from the outside and the evaporation of water from the inside into the skin, and at the same time, retains the water itself, thereby increasing the flexibility of the skin. It has a function to maintain a smooth appearance.
It is generally known that a decrease in intercellular lipids, particularly ceramide, causes an unfavorable skin condition, and it is considered that supplementation with topical ceramide leads to improvement of skin functional deterioration. Therefore, a composition containing ceramide and enhancing the moisturizing effect of the skin has been studied.

For example, Patent Document 1 describes that an emulsified composition containing sphingosine, ceramide, glycerin fatty acid ester, higher alcohol, and water has excellent storage stability and a high moisturizing effect.
Patent Document 2 describes that an aqueous cosmetic containing ceramides, an oily component, a hydrophilic surfactant, and a water-soluble amphipathic component is excellent in moisturizing property, transparency, and stability over time.
Patent Document 3 describes an emulsified composition containing monobechenic acid or monocetyl glyceryl ether, higher alcohols, ceramides, anionic surfactants, and a water-soluble polymer, in which the coating film has flexibility and elasticity and moisture. It is described that the retention ability is high.

JP-A-2007-22997 Japanese Unexamined Patent Publication No. 2013-166709 Japanese Unexamined Patent Publication No. 2012-214469

Although the conventional emulsified composition containing ceramides is excellent in moisturizing feeling and water retention, there is a problem in terms of usability such as strong film feeling and stickiness.
In particular, the film feeling is a feeling that the skin is covered with a solid fat such as ceramide after applying a composition containing a solid fat such as ceramide to the skin. It was considered that the skin had a long-lasting moisturizing effect. However, when the skin with a filmy feeling is rubbed with a finger, the finger does not move smoothly and there is a feeling that the skin is caught on the skin, which makes the skin feel uncomfortable. Therefore, in a composition containing a solid fat such as ceramide, reduction of film feeling has been an issue. In addition, when the film feeling is reduced, it is difficult to obtain a lasting feeling of the moisturizing effect.

By using a combination of ceramides, a specific compound such as batyl alcohol, and an alkylene oxide derivative, the skin film feeling after application is reduced, and the skin feels non-greasy, fresh and refreshing. It has been found that an emulsified composition having a long-lasting moisturizing effect can be obtained even though the film feeling is reduced.

In the present invention, the following components (A), (B) and (C):
(A) Ceramides 0.001 to 10% by mass,
(B) General formula (1);

(In the formula, Z ¹ is a glycerin, sorbitol, sorbitol or sucrose residue having a structure having two or more hydroxyl groups, Y ¹ is an ester group or an ether group, and R is carbon. The number 14 to 22 indicates a hydrocarbon group, and m indicates the number 1 to 4).
Compound represented by 0.001 to 10% by mass,
(C) General formula (2);

(In the formula, n represents an integer of 1 to 10, Z ² represents a group obtained by removing n hydroxy groups from a hydrogen atom or a hydroxy compound having 1 to 30 carbon atoms, and EO represents a group obtained by removing n hydroxy groups. Indicates an ethylene oxide group, PO indicates a propylene oxide group, AO indicates an alkylene oxide group having 2 to 5 carbon atoms, and a, b and c indicate the average number of moles of each alkylene oxide group added, and they are independent. However, not all of a, b and c are 0. When Z ² is a hydrogen atom, n is 1.
In addition, in [], each alkylene oxide group may be added randomly or in a block form).
Alkylene oxide derivative represented by 0.1 to 25% by mass
The present invention relates to an emulsified composition containing.

The emulsified composition of the present invention has a reduced feeling of film on the skin after application, is not sticky, has a fresh and refreshing feel, and has a long-lasting moisturizing effect even though the feeling of film is reduced. is there. The film feeling means that when the skin is rubbed with a finger, the finger does not move smoothly and is caught on the skin, which makes the skin feel uncomfortable.

The ceramides of the component (A) used in the present invention may be either natural ceramides or pseudo-ceramides, and one or more selected from those represented by the following general formulas (3) or (4). Is preferably included.
(I) The natural ceramide represented by the general formula (3) may be naturally derived ceramides or a compound having the same structure.

(In the formula, R ¹ represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms in which the hydroxyl group may be substituted; Z ³ represents a methylene group or a methine group. Shown; X ¹ , X ² , and X ³ each independently represent a hydrogen atom, a hydroxyl group, or an acetoxy group; X ⁴ represents a hydrogen atom or together with an adjacent oxygen atom to form an oxo group. (However, when Z ³ is a methine group, ^one of X 1 and X ² is a hydrogen atom and the other does not exist. When X ⁴ forms an oxo group, X ³ does not exist.); R ² indicates a hydroxymethyl group or an acetoxymethyl group; R ³ indicates a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; R ⁴ indicates an alkyl group having 5 to 30 carbon atoms which may be substituted with a hydroxyl group. A linear, branched or cyclic saturated or unsaturated hydrocarbon group, or a linear or branched chain having 8 to 22 carbon atoms in which a hydroxyl group may be substituted at the ω end of the alkyl group. Saturated or unsaturated fatty acids are ester-bonded; dashed lines indicate unsaturated bonds.)

Preferably, R ¹ is a linear alkyl group having 7 to 19 carbon atoms, more preferably 13 to 15 carbon atoms; R ⁴ is a linear alkyl group having 9 to 27 carbon atoms or a linoleic acid in which the hydroxyl group may be substituted. Examples thereof include compounds which are linear alkyl groups having 9 to 27 carbon atoms in which is ester-bonded. Further, ^{it is preferable that X 4} represents a hydrogen atom or forms an oxo group together with an oxygen atom. In particular, as R ⁴ , tricosylic acid, 1-hydroxypentadecyl, 1-hydroxytricosylic acid, heptadecyl, 1-hydroxyundecyl, and a nonacosyl group in which linoleic acid is ester-bonded at the ω position are preferable.

Natural ceramides are ceramides Type 1-7 in which sphingosine, dihydrosphingosine, phytosphingosine or sphingadienin are amidated (eg, J. Lipid Res., 24: 759 (1983), FIG. 2 and J. Lipid. Res., 35: One or more selected from the ceramides of pigs and humans shown in FIG. 4 of 2069 (1994)) is preferable.

Further, these N-alkyl compounds (for example, N-methyl compounds) are also included.
These ceramides are a mixture of natural and non-natural types, whether they use natural (D (-)) optically active substances or non-natural (L (+)) optically active substances. May be used. The relative configuration of the compound may be a natural configuration, a non-natural configuration other than that, or a mixture thereof. Among them, one or more selected from the compounds of CERAMIDE1, CERAMIDE2, CERAMIDE3, CERAMIDE5, CERAMIDE6II (above, INCI, 8th Edition) and those represented by the following formulas are preferable, and CERAMIDE2 is more preferable.

These may be either natural extracts or synthetics, and commercially available ones can be used.
When using commercially available natural ceramides such as Ceramide I, Ceramide III, Ceramide IIIA, Ceramide IIIB, Ceramide IIIC, Ceramide VI (above, Cosmo Farm), Ceramide TIC-001 (Takasago Fragrance) , CERAMIDE II (Quest International), DS-Ceramide VI, DS-CLA-Phytoceramide, C6-Phytoceramide, DS-ceramide Y3S (DOOSAN), CERAMIDE2 (Sederma).

(II) Pseudo-type ceramide represented by the general formula (4).

(In the formula, R ⁵ represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group or hydrogen atom having 10 to 22 carbon atoms in which the hydroxyl group may be substituted; X ⁵ is a hydrogen atom. , An acetyl group or a glyceryl group; R ⁶ is a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 5 to 22 carbon atoms which may be substituted with a hydroxyl group or an amino group. Alternatively, the ω-terminal of the hydrocarbon group indicates an ester bond of a linear or branched saturated or unsaturated fatty acid having 8 to 22 carbon atoms which may be substituted with a hydroxyl group; R ⁷ is a hydrogen atom. Or an alkyl group having a total carbon number of 1 to 30 which may be substituted with a hydroxyl group, a hydroxyalkoxy group, an alkoxy group or an acetoxy group.)

R ⁶ includes nonyl, tridecyl, pentadecyl, an undecyl group in which linoleic acid is ester-bonded at the ω position, a pentadecyl group in which linoleic acid is ester-bonded at the ω position, and a pentadecyl group in which 12-hydroxystearic acid is ester-bonded at the ω position. , Undecyl group in which methyl-branched isostearic acid is amide-bonded at the ω position is preferable.

When R ^{5 is a hydrogen atom, R 7} is an alkyl having a total carbon number of 10 to 30, preferably a total carbon number of 12 to 20, which may be substituted with a hydroxyl group, a hydroxyalkoxy group, an alkoxy group or an acetoxy group. If it is a group and R ⁵ is a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 10 to 22 carbon atoms in which the hydroxyl group may be substituted, it indicates a hydrogen atom or indicates a hydrogen atom. Those showing an alkyl group having a total carbon number of 1 to 8 which may be substituted with a hydroxyl group, a hydroxyalkoxy group, an alkoxy group or an acetoxy group are preferable. The hydroxyalkoxy group or alkoxy group of R ⁷ preferably has 1 to 7 carbon atoms.

As a general formula (4), R ⁵ is a hexadecyl group, X ⁵ is a hydrogen atom, R ⁶ is a pentadecyl group, and R ⁷ is a hydroxyethyl group; R ⁵ is a hexadecyl group, X ⁵ is a hydrogen atom, and R ⁶ is a hydrogen atom. One or more selected from pseudo-ceramides in which a nonyl group and R ^{7 are hydroxyethyl groups are preferable, and R 5 in the} general formula (4) is a hexadecyl group, X ⁵ is a hydrogen atom, and R ⁶ is a pentadecyl group. It ^{is more preferable that R 7} has a hydroxyethyl group (N- (hexadecyloxyhydroxypropyl) -N-hydroxyethylhexadecanamid).

The component (A) may be one or more selected from (N- (hexadecyloxyhydroxypropyl) -N-hydroxyethylhexadecanamid) and ceramide 2 from the viewpoint of improving the long-lasting moisturizing effect. preferable.

As the component (A), one kind or two or more kinds can be used, and the content is in the whole composition from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling and the lasting feeling of the moisturizing effect. It is 0.001 to 10% by mass, preferably 0.01 to 8% by mass, more preferably 0.1 to 6% by mass, still more preferably 1.5 to 4% by mass.

The component (B) used in the present invention is represented by the general formula (1).
In the formula, the hydrocarbon group having 14 to 22 carbon atoms represented by R is preferably a linear hydrocarbon group, for example, a linear alkyl group such as a myristyl group, a palmityl group, a stearyl group or a behenyl group; a palmitoyl group, Examples include oleyl groups.
Further, as Z ¹ , glycerin is preferable from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling.
Examples of the compound represented by the general formula (1) include glycerin monofatty acid ester, sorbitan monofatty acid ester, sorbitoldi fatty acid ester, sorbitol monofatty acid ester, sorbitol difatty acid ester, sucrose monofatty acid ester, and glycerin monoalkyl ether. Can be mentioned. Examples of the glycerin monofatty acid ester include glyceryl stearate and glyceryl behenate, and examples of the glycerin monoalkyl ether include glycerin monocetyl ether (chimil alcohol), glycerin monostearyl ether (bacyl alcohol), and isostearyl glyceryl ether. Can be mentioned.

As the component (B), one or more selected from glycerin monofatty acid ester and glycerin monoalkyl ether are preferable, and glyceryl stearate is preferable from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling. , Glyceryl behate, glycerin monocetyl ether (chimil alcohol), glycerin monostearyl ether (bacyl alcohol), isostearyl glyceryl ether, one or more are more preferable, glyceryl stearate, glyceryl behate, glycerin One or more selected from monostearyl ether (batyl alcohol) is more preferable, and glycerin monostearyl ether (bacill alcohol) is even more preferable.

One or more kinds of the component (B) can be used, and the content is 0.001 to 10% by mass in the total composition from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling. Yes, 0.01 to 8% by mass is preferable, 0.1 to 5% by mass is more preferable, and 0.9 to 2.5% by mass is further preferable.

In the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) reduces the film feeling of the skin after application, and improves the refreshing feeling and the lasting feeling of the moisturizing effect. It is preferably 0.05 to 20, more preferably 0.1 to 10, still more preferably 0.45 to 5.8, and even more preferably 1.2 to 2.5.

The alkylene oxide derivative of the component (C) is represented by the general formula (2).
In the formula, n represents an integer of 1 to 10; Z ² represents a group obtained by removing n hydroxy groups from a hydrogen atom or a hydroxy compound having 1 to 30 carbon atoms; EO represents ethylene oxide. Groups are shown; PO is a propylene oxide group; AO is an alkylene oxide group with 2-5 carbon atoms; a, b and c are the average number of moles of each alkylene oxide group added and are independent. It is 0 to 200. However, not all of a, b, and c become 0. Further ^{, when Z 2} is a hydrogen atom, n is 1. In addition, in [] of the formula (2), each alkylene oxide group may be added in a random form or in a block form.
Further, when each of a, b, and c is other than 0,
From the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling, a is preferably 0.5 to 200, more preferably 1 to 170, further preferably 1.5 to 100, and 2 to 50. Even more preferable.
b is preferably 0.1 to 200, more preferably 0.5 to 170, further preferably 0.8 to 100, and 1 to 1 from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling. 50 is even more preferred.
From the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling, c is preferably 0.1 to 200, more preferably 0.3 to 100, further preferably 0.5 to 50, and 0. 8 to 10 are even more preferable.
In addition, b is preferably 0.1 or more from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling regardless of the values of a and c.

Furthermore, from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling and the long-lasting feeling of the moisturizing effect, Z ² is a hydrogen atom or an alkyl monoalcohol having 4 to 24 carbon atoms, glycerin, It is a group obtained by removing n hydroxy groups from alkylglycoside, diglycerin, and sorbitol, that is, a group derived from these alcohol compounds, and is preferably a hydrogen atom or has a carbon number of carbon atoms. More preferably, it is a group derived from 4 to 24 alkyl monoalcohol, glycerin or alkyl glycoside, and is a hydrogen atom or a group derived from an alkyl monoalcohol, glycerin or methyl glucoside having 2 to 6 carbon atoms. More preferably, and even more preferably glycerin.

More specifically, as the component (C),
As for ^{the group that Z 2} is derived from glycerin,
Polyoxybutylene polyoxyethylene polyoxypropylene glyceryl ether (3BO) (8EO) (5PO) (Cosmetic labeling name: PEG / PPG / polybutylene glycol-8 / 5/3 glycerin), Polyoxypropylene glyceryl ether (cosmetic labeling name: PPG-16 glyceryl ether) and the like;
As ^{a group from which Z 2} is derived from methylglucoside,
Examples thereof include polyoxypropylene methylglucoside (cosmetic labeling name: PPG-10 methyl glucose, PPG-20 methyl glucose);
As a group derived from an alkyl monoalcohol having 4 carbon atoms, ^{Z 2 is}
Polyoxyethylene polyoxypropylene butyl ether (cosmetic labeling name: PPG-10 butes-9, PPG-17 butes-17) and the like;
As ^{a group from which Z 2} is derived from sorbitol,
Polyoxypropylene sorbitol (cosmetics labeling name: PPG-25 sorbitol, PPG-10 sorbitol) and the like can be mentioned;
Assuming ^{that Z 2} is a hydrogen atom,
Polypropylene glycol (cosmetic labeling name: PPG-7, PPG-34),
Polyoxyethylene polypropylene glycol (cosmetic labeling name: PEG / PPG-150 / 35 copolymer, PEG / PPG-160 / 30 copolymer) and the like;
As ^{a group from which Z 2} is derived from diglycerin,
Examples thereof include polyoxypropylene diglyceryl ether (cosmetic labeling name: PPG-14 polyglyceryl-2 ether, PPG-9 diglyceryl).
Of these, selected from PEG / PPG / polybutylene glycol-8 / 5/3 glycerin, PPG-10 methyl glucose, PPG-20 methyl glucose, PPG-7, PPG-10 depth-9, PPG-17 depth-17. 1 type or 2 or more types are preferable.
One or more selected from PEG / PPG / polybutylene glycol-8 / 5/3 glycerin, PPG-10 methyl glucose, PPG-20 methyl glucose, PPG-10 depth-9, PPG-17 depth-17 More preferable
More preferably, one or more selected from PEG / PPG / polybutylene glycol-8 / 5/3 glycerin, PPG-10 depth-9, PPG-17 depth-17.
PEG / PPG / polybutylene glycol-8 / 5/3 glycerin is even more preferred.

The alkylene oxide derivative of the component (C) can be synthesized by a known method.
In addition, Wilbride S-753 (PEG / PPG / polybutylene glycol-8 / 5/3 glycerin), Macbiobride MG-10P (PPG-10 methyl glucose),
McBiobride MG-20P (PPG-20 Methyl Glycol), Unilube 50MB-11 (PPG-10 Butes-9), Unilube 50MB-26 (PPG-17 Butes-17), Uniol HS-1600D (PPG-25 Sorbitol) , Pronon # 208 (PEG / PPG-150 / 35 copolymer), Uniol D-400 (PPG-7), Uniol D-2000 (PPG-34) (all manufactured by Nichiyu Co., Ltd.); SY-DP14T (PPG-14) Polyglyceryl-2 ether), SY-DP9 (PPG-9 diglyceryl) (manufactured by Sakamoto Yakuhin Kogyo Co., Ltd.); Newpol GP-1000 (PPG-16 glyceryl ether), Newpol SP-750 (PPG-10 sorbitol) , New Pole PE-68 (PEG-160 / 30 Copolymer), New Pole PE-78 (PEG-150 / 35 Copolymer) (all manufactured by Sanyo Kasei Co., Ltd.); Emargen PP-290 (PEG / PPG-160 / 30 Copolymer) , Kao Co., Ltd.) and other commercially available products can also be used.

As the component (C), one type or two or more types can be used, and the content is 0.1 to 0 in the entire composition from the viewpoint of reducing the film feeling of the skin after application and improving the refreshing feeling. It is 25% by mass, preferably 1.7 to 15% by mass, and more preferably 3.8 to 8% by mass.

In the present invention, the mass ratio (B) / (C) of the component (B) to the component (C) reduces the film feeling of the skin after application, and improves the refreshing feeling and the lasting feeling of the moisturizing effect. It is preferably 0.01 to 5, more preferably 0.07 to 1.2, even more preferably 0.11 to 0.75, and even more preferably 0.23 to 0.45.

In the emulsified composition of the present invention, the content of water (D) is preferably 40 to 97% by mass, more preferably 50 to 96% by mass, still more preferably 60 to 93% by mass in the total composition.

The emulsified composition of the present invention can further contain (E) a higher alcohol having 12 to 22 carbon atoms, and can further enhance the lasting feeling of the moisturizing effect.
Examples of such higher alcohols include myristyl alcohol, cetanol, stearyl alcohol, behenyl alcohol and the like.
As the higher alcohol of the component (E), those having 14 to 18 carbon atoms are preferable, and 16 carbon atoms are more preferable, from the viewpoint of improving the lasting feeling of the moisturizing effect.

The component (E) can be used alone or in combination of two or more, and the content is in the entire composition from the viewpoint of reducing the film feeling of the skin after application and improving the lasting feeling of the moisturizing effect. It is preferably 0.001 to 10% by mass, more preferably 0.01 to 5% by mass, still more preferably 0.5 to 4% by mass.

The emulsified composition of the present invention can further contain (F) a water-soluble thickener, and can improve the glossiness of the skin after application.
Examples of the water-soluble thickener include alkyl-modified polyacrylic acid-based polymers, alkyl-modified polysaccharide-based polymers, and urethane-based polymers. More specifically, examples of the alkyl-modified polyacrylic acid-based polymer include an alkyl acrylate polymer, a (acrylic acid / alkyl acrylate (C10-30)) copolymer, and a (alkyl acrylate / steareth methacrylate-20) copolymer. Examples of the alkyl-modified polysaccharide polymer include laureth-13PG hydroxyethyl cellulose, Na stearoxy PG hydroxyethyl cellulose sulfonate and the like; and examples of the polyurethane polymer include (PEG-240 / decyltetradeceth-20 / HDI). ) Examples thereof include copolymers.
As the component (F), one or more selected from alkyl-modified polyacrylic acid-based polymers and alkyl-modified methacrylic acid-based polymers are preferable, and alkyl-modified polyacrylic acid is preferable from the viewpoint of improving the glossiness of the skin after application. Acid-based polymers are more preferred, and one or more selected from (acrylic acid / alkyl acrylate (C10-30)) copolymers and (alkyl acrylate / steareth methacrylate-20) copolymers are even more preferred, and (acrylic acid). Alkyl / methacrylic acid steareth-20) copolymers are even more preferred.

Commercially available products of the component (F) include, for example, an alkyl acrylate polymer, Acculin 33 (The Dow Chemical Company), and a (acrylic acid / alkyl acrylate (C10-30)) copolymer, pemrene. TR-1, Pemren TR-2, Carbopole ETD2020 (above, Lubrizol Advanced Materials, Inc.) and the like can be mentioned. Further, examples of the (alkyl acrylate / steareth methacrylic acid-20) copolymer include Acculin 22 (The Dow Chemical Company). Examples of sodium stearoxy PG hydroxyethyl cellulose sulfonate include SPS-S-SA, and examples of laureth-13 PG hydroxyethyl cellulose include Sofcare EP-S (Kao Corporation) and Natrosol Plus (Hercules-Aqualon). Examples of the urethane polymer include Adecanol GT-700 (manufactured by ADEKA) as the (PEG-240 / decyltetradeceth-20 / HDI) copolymer.

Ingredient (F) can be used alone or in combination of two or more, and the content reduces the film feeling of the skin after application, and gives a refreshing feeling, a long-lasting moisturizing effect, and the skin after application. From the viewpoint of improving glossiness, it is preferably 0.01 to 3% by mass, more preferably 0.2 to 1.5% by mass, and even more preferably 0.4 to 0.8% by mass in the total composition. ..

In the present invention, the mass ratio (A) / (F) of the component (A) to the component (F) reduces the film feeling of the skin after application, and gives a refreshing feeling, a long-lasting moisturizing effect, and the skin after application. From the viewpoint of improving glossiness, 0.01 to 100 is preferable, 0.1 to 50 is more preferable, 0.5 to 14 is more preferable, and 3 to 7 is even more preferable.

In the present invention, the mass ratio (C) / (F) of the component (C) to the component (F) reduces the film feeling of the skin after application, and gives a refreshing feeling, a long-lasting moisturizing effect, and the skin after application. From the viewpoint of improving glossiness, 0.1 to 100 is preferable, 1 to 70 is more preferable, 4 to 42 is further preferable, 7 to 29 is further preferable, and 9 to 14 is particularly preferable.

The emulsified composition of the present invention can be applied as an external preparation for skin such as cosmetics. In the case of cosmetics, in addition to the above ingredients, other ingredients used in ordinary cosmetics, such as oily ingredients other than the above, surfactants, lower alcohols, moisturizers, antioxidants, preservatives, chelates, etc. It can contain agents, whitening agents, ultraviolet absorbers, vitamins, plant extracts, other various medicinal ingredients, powders, fragrances, coloring materials and the like.

Further, the emulsified composition of the present invention can be produced by a usual method, for example, by heating and mixing the components (A), (B), (C) and other components, and then cooling the mixture. can do.

Examples 1 to 19 and Comparative Examples 1 to 3
The emulsified compositions having the compositions shown in Tables 1 to 4 were produced, and the lack of film feeling, the refreshing feeling, and the long-lasting moisturizing effect of the skin after application were evaluated. The results are also shown in Tables 1 to 4.

(Production method)
The components (A), (B), (C) and other components were heated and mixed at 60 ° C. or higher to confirm dissolution, and then cooled to 25 ° C. to obtain an emulsified composition.

(Evaluation method)
(1) No skin film feeling after application:
Three expert evaluators applied 0.1 g of each emulsified composition to the back of the hand, massaged it, touched the skin immediately afterwards, and sensory-evaluated the lack of film feeling according to the following criteria. The absence of a film feeling means that when the skin after application is touched with a finger, the finger does not get caught and the finger moves smoothly. The evaluation results in the table are shown by the total score of the three expert evaluators.
5; There is clearly no film feeling.
4; There is no film feeling.
3; There is not much film feeling.
2; There is a slight film feeling.
1; There is a feeling of film.

(2) Refreshing skin after application:
Three expert evaluators applied 0.1 g of each emulsified composition to the back of the hand and massaged it, and immediately after that, the skin was touched and the refreshing feeling was sensory evaluated according to the following criteria. The evaluation results in the table are shown by the total score of the three expert evaluators.
5; Very refreshing.
4; There is a refreshing feeling.
3; There is a slightly refreshing feeling.
2; There is not much refreshing feeling.
1; There is no refreshing feeling.

(3) Persistence of skin moisturizing effect after application:
Three expert evaluators applied 0.1 g of each emulsified composition to the back of the hand and massaged it, touched the skin immediately after and one hour later, and sensory-evaluated the persistence of the moisturizing effect according to the following criteria. The evaluation results in the table are shown by the total score of the three expert evaluators.
5; The moisturizing effect is very long-lasting.
4; The moisturizing effect is sustained.
3; The moisturizing effect is slightly sustained.
2; The moisturizing effect is not very long-lasting.
1; Moisturizing effect is not sustained.

Examples 20-30
An emulsified composition having the composition shown in Table 5 was produced in the same manner as in Examples 1 to 19, and the lack of film feeling, refreshing feeling, moisturizing lasting feeling, and glossiness of the skin after application were evaluated. The results are also shown in Table 5.

(Evaluation method)
(4) The appearance of the skin after application:
Three expert evaluators applied 0.1 g of each emulsified composition to the back of the hand and massaged it, and immediately after that, the skin was visually inspected, and the presence or absence of glossiness was sensory evaluated according to the following criteria. The evaluation results in the table are shown by the total score of the three expert evaluators.
5; Very glossy.
4; There is a glossy feeling.
3; There is a feeling of luster.
2; Not very glossy.
1; There is no glossiness.

Prescription Examples 1-3
Emulsified compositions having the compositions shown in Tables 6 to 8 were produced in the same manner as in Examples 1 to 19.
All of the obtained emulsified compositions have a reduced skin film feeling after application, a non-greasy, fresh and refreshing feeling, and a long-lasting moisturizing effect can be obtained even though the film feeling is reduced. It is a thing.

Claims (8)

The following components (A), (B) and (C):
(A) Ceramides 0.001 to 10% by mass,
(B) General formula (1);

(In the formula, Z ¹ is a glycerin, sorbitol, sorbitol or sucrose residue having a structure having two or more hydroxyl groups, Y ¹ is an ester group or an ether group, and R is carbon. The number 14 to 22 indicates a hydrocarbon group, and m indicates the number 1 to 4).
Compound represented by 0.001 to 10% by mass,
(C) General formula (2);

(In the formula, n represents an integer of 1 to 10, Z ² represents a group obtained by removing n hydroxy groups from a hydrogen atom or a hydroxy compound having 1 to 30 carbon atoms, and EO represents a group obtained by removing n hydroxy groups. Indicates an ethylene oxide group, PO indicates a propylene oxide group, AO indicates an alkylene oxide group having 2 to 5 carbon atoms, and a, b and c indicate the average number of moles of each alkylene oxide group added, and they are independent. However, not all of a, b and c are 0. When Z ² is a hydrogen atom, n is 1.
In addition, in [], each alkylene oxide group may be added randomly or in a block form).
Alkylene oxide derivative represented by 0.1 to 25% by mass
An emulsified composition containing. The emulsified composition according to claim 1, wherein the mass ratio (B) / (C) of the component (B) to the component (C) is 0.01 to 5. The emulsified composition according to claim 1 or 2, wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 0.05 to 20. The emulsified composition according to any one of claims 1 to 3, further comprising (E) a higher alcohol having 12 to 22 carbon atoms. The emulsified composition according to any one of claims 1 to 4, wherein in the component (C), b is 0.1 or more in the general formula (2). The emulsified composition according to any one of claims 1 to 5, wherein in the component (B), Z ^{1 is glycerin in the general formula (1).} The emulsified composition according to any one of claims 1 to 6, further comprising the component (F) water-soluble thickener. The emulsified composition according to claim 7, wherein the component (F) is one or more selected from an alkyl-modified polyacrylic acid-based polymer and an alkyl-modified polysaccharide-based polymer.