JP2022075265A - Oil-in-water emulsified composition containing behendimonium ethyl stearyl phosphate - Google Patents

Abstract

To provide emulsified compositions having excellent emulsion stability and also a good usability even when a specific surfactant (particularly a surfactant having a relatively weak emulsifying power, particularly a phospholipid) is used as an emulsifier, in an oil-in-water emulsified composition (especially cosmetics) containing a liquid polar oil.SOLUTION: An oil-in-water emulsified composition of the present invention contains (A) one or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants, (B) behendimonium ethyl stearyl phosphate, (C) liquid polar oil, (D) fatty acid glyceryl, (E) water-soluble polymer, and (F) water.SELECTED DRAWING: None

Description

The present invention relates to an oil-in-water emulsified composition containing stearyl behendimonium ethyl phosphate. The present invention also relates to a method for stabilizing emulsification in the production of an oil-in-water emulsified composition using stearyl behendimonium ethyl phosphate.

In an emulsified composition (particularly an emulsified cosmetic), emulsification stability against changes over time is important, but when a surfactant having a weak emulsifying power is used, emulsification may become unstable. Therefore, many studies have been conducted to stabilize emulsification. For example, phospholipid is a natural surfactant having a good affinity for the skin and a high moisturizing effect, and is used as an emulsifier. However, phospholipid generally has a weak emulsifying power. Therefore, it is required to improve the emulsification stability of the emulsified composition containing phospholipids. For example, Patent Document 1 discloses a technique for supplementing emulsification by using a liquid higher alcohol and glycerin in combination to improve the emulsification stability of an emulsified composition containing a phospholipid.

In addition, the emulsified composition (particularly emulsified cosmetics) may contain a liquid polar oil for the purpose of improving the appropriate adhesion and spreading on the skin, but the polar oil improves the stability of the emulsion. Can have an impact. Therefore, many studies have been conducted on the stable formulation of polar oils. For example, Patent Document 2 discloses a technique for improving emulsion stability by combining a higher alcohol, a polar oil, and a long-chain acyl sulfonate-type anionic surfactant.

However, as in the technique of Patent Document 1, phospholipids are used as emulsifiers, liquid higher alcohols and glycerin are used as emulsifying aids, and liquid polar oil emulsified cosmetics contain liquid higher alcohols and glycerin. Due to the stickiness, the usability may be significantly deteriorated. Further, although the technique of Patent Document 2 can improve the emulsification stability, the blending amount of the higher alcohol may be increased, and the skin familiarity and the smooth feeling of use may be deteriorated. Further, as in these documents, when a higher alcohol is combined as an emulsifying aid, the higher alcohol precipitates in the aqueous phase from the emulsification interface to increase the viscosity, or conversely, the oil from the emulsification interface. In cosmetics, the viscosity may decrease by dissolving on the interface side, and in addition, some of the higher alcohols may form a gel with an emulsifier (for example, phospholipid) to promote thickening. In some cases, there was a problem with usability such as a smooth feel during application.

Japanese Unexamined Patent Publication No. 5-4912 Japanese Unexamined Patent Publication No. 2008-44866

The present invention uses a specific surfactant (particularly a surfactant having a relatively weak emulsifying power, particularly a phospholipid) as an emulsifier in an oil-in-water emulsified composition (particularly a cosmetic) containing a liquid polar oil. Even in some cases, it is an object of the present invention to provide an emulsified composition having excellent emulsification stability and a good usability.

The present invention includes, but is not limited to, embodiments listed below.
[Item 1] The following components (A) to (F):
(A) One or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants,
(B) Behendimonium stearyl ethyl phosphate,
(C) Liquid polar oil,
(D) Fatty acid glyceryl,
(E) Water-soluble polymer and
(F) Water,
An oil-in-water emulsified composition containing the above (hereinafter referred to as "main emulsified composition").
[Item 2] The oil-in-water emulsified composition according to Item 1, wherein the ratio of the content of the component (D) to the component (B) ((D) / (B)) is 0.4 or more in terms of weight ratio. thing.
[Item 3] The oil-in-water emulsified composition according to Item 1 or 2, wherein at least one of the components (A) is a phospholipid.
[Item 4] In any one of Items 1 to 3, the ratio of the content of the component (B) to the component (A) ((B) / (A)) is 0.2 or more in terms of weight ratio. The oil-in-water emulsified composition according to the above.
[Item 5] Items 1 to 4 in which the ratio of the total content of the polar oil including the component (C) to the total amount of the oily component (polar oil / total amount of the oily component) is 0.2 or more in terms of weight ratio. The oil-in-water emulsified composition according to any one of the above items.
[Item 6] The ratio of the total content of the component (A) and the component (B) to the total amount of the oily component (((A) + (B)) / total amount of the oily component) is 0.05 or more in terms of weight ratio. The oil-in-water emulsified composition according to any one of Items 1 to 5.
[Item 7] Item 1 to Item 6, wherein the component (C) is a liquid polar oil selected from synthetic or natural fatty acids, fatty acid esters thereof, or higher alcohols which are in liquid form at room temperature. The oil-in-water emulsified composition according to.
[Item 8] The oil-in-water emulsified composition according to any one of Items 1 to 7, wherein the component (D) is glyceryl stearate.
Item 9 In any one of Items 1 to 8, the component (E) comprises at least one selected from the group consisting of (Acrylate / alkyl acrylate (C10-30)) crosspolymer and carbomer. The oil-in-water emulsified composition according to the above.
[Item 10] The oil-in-water emulsified composition according to any one of Items 1 to 9, further comprising a higher alcohol as the component (G).
[Item 11] The oil-in-water emulsified composition according to any one of Items 1 to 10, further comprising a fatty acid as the component (H).
[Item 12] The oil-in-water emulsified composition according to any one of Items 1 to 11, which is an emulsified cosmetic.
[Item 13] The oil-in-water emulsified composition according to any one of Items 1 to 12, which is used for skin.
[Item 14] The following components (A) to (F):
(A) One or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants,
(B) Behendimonium stearyl ethyl phosphate,
(C) Liquid polar oil,
(D) Fatty acid glyceryl,
(E) Water-soluble polymer and
(F) Water,
A method for stabilizing emulsification in the production of an oil-in-water emulsification composition (hereinafter referred to as "the main emulsification stabilization method"), which comprises mixing the above.

According to the present invention, by using stearyl behendimonium ethyl phosphate, an oil-in-water emulsified composition (particularly cosmetic) having good emulsion stability and excellent usability even when a liquid polar oil is blended can be obtained. Can be provided.

The oil-in-water emulsified composition of the present invention has the following components (A) to (F):
(A) One or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants,
(B) Behendimonium stearyl ethyl phosphate,
(C) Liquid polar oil,
(D) Fatty acid glyceryl,
(E) Water-soluble polymer and
(F) Water,
Contains.
In the present specification, (A) to (F) are indicator symbols of the components, and are also hereinafter referred to as component (A) and the like.

Ingredient (A)
The component (A) is one or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants. The nonionic surfactant contained in the component (A) has an HLB value of 12.0 or more and is a relatively highly hydrophilic surfactant. Of course, if the component (A) is contained in the emulsified composition, the emulsified composition may or may not further contain a nonionic surfactant having a HLB of less than 12.0. good. The HLB value is typically an index indicating the degree of affinity between water and oil (hydrophobic oil) of a nonionic surfactant, and the higher the value, the higher the hydrophilicity. The HLB value can be determined as a value unique to each substance, or is publicly known. The HLB value (hydrophilic-lipophilic balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and is determined by the Griffin formula. ..

The nonionic surfactant having an HLB of 12.0 or more is not limited to this, and for example, a fatty acid polyoxyethylene-based surfactant having an HLB value of 12.0 or more, polyoxyethylene hydrogenated castor oil, and the like. Examples thereof include fatty acid polyglyceryl-based surfactants and sucrose fatty acid esters. Specific examples thereof include polyoxyethylene sorbitan monostearate (HLB14.9), polyoxyethylene sorbitan monooleate (HLB15.0), and monolauric acid. Polyoxyethylene sorbitan (HLB16.7), PEG-20 methylglucose sesquistearate (HLB15.0), polyoxyethylene sorbit tetraoleate (HLB13.8), PEG-40 monostearate (HLB17.5), PEG -30 Phytosterol (HLB18.0), polyoxyethylene hydrogenated castor oil (HLB14.0), decaglyceryl monostearate (HLB12.0), polyoxyethylene alkyl (12-15) ether phosphate (10EO) (HLB13.5)), sucrose stearate (HLB15.0) and the like.

As the ionic surfactant, any of an anionic surfactant, a cationic surfactant, and an amphoteric surfactant (amphoteric surfactant) can be used. Of these, it is preferable to contain one or more selected from anionic surfactants and zwitterionic surfactants.

Examples of the anionic surfactant include, but are not limited to, N-stearoyl-N-methyltaurine sodium, stearoyl lactate sodium, N-stearoyl-L-sodium glutamate, and the like.

Examples of the amphoteric tenside include an alkylbetaine amphoteric tenside such as phospholipid and lauryldimethylbetaine, an amidopropylbetaine amphoteric tenside such as oleateamidepropylbetaine, and an amino acid amphoteric tenside such as sodium laurylaminopropionate. Examples include, but are not limited to, surfactants. Phospholipids are amphipathic substances and are classified herein as amphoteric tensides.

As the component (A), it is particularly preferable to contain a phospholipid. Phospholipids are also called lecithin. Phospholipids are surface-active substances having a good affinity for the skin and having a high moisturizing effect, and phospholipids can be used to obtain emulsified compositions having an excellent feeling of use and moisturizing properties as well as a surface-active effect. Here, although phospholipids are highly compatible with the skin, their emulsifying power tends to be weak. However, in this emulsified composition, phospholipids are used as emulsifiers, especially by containing the component (B). Even if it is present, an emulsified composition having excellent emulsification stability can be obtained. As used herein, the term phospholipid refers to a compound having a structure in which a fatty acid and phosphoric acid are bound to each other with glycerin or sphingosine as the central skeleton, and an alcohol is ether-bonded to the phosphoric acid. The phospholipid may be either a natural phospholipid or a synthetic phospholipid, or may be a hydrogenated phospholipid obtained by hydrogenating these phospholipids. Examples of natural phospholipids include phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine, sphingomyelin, egg yolk phospholipids, soybean phospholipids, and the like. Examples thereof include phosphatidylcholine, dimyristoylphosphatidylcholine, dipalmitoylephosphatidylcholine, distearoylphosphatidylcholine, dioleoylphosphatidylcholine, palmitoyloleoil phosphatidylcholine, and the like. Examples of the hydrogenated phospholipid include hydrogenated soybean phospholipid, hydrogenated soybean lysophospholipid, hydrogenated egg yolk phospholipid, hydrogenated phosphatidylcholine, hydrogenated phosphatidylserine, and the like, and in particular, hydrogenated soybean phosphorus. Lipids can be preferably used.

The content of the component (A) in the main emulsified composition (the total amount if there are a plurality of them) is not limited to this, but from the viewpoint of obtaining sufficient surface activity ability, the total amount of the main emulsified composition (100). By weight%), it can be 0.001 to 10% by weight, preferably 0.01 to 5% by weight, and more preferably 0.1 to 1% by weight. In particular, when phospholipid is contained as the component (A), the content of phospholipid is preferably in the above range in order to improve the usability such as smoothness as well as sufficient surface activity ability.

ホスホコリンの部分（ホスホコリン基ともいう）は、リン脂質の極性基であり、親水基として機能する。また、ホスホコリン基の両側にはそれぞれ、アルキル基（Ｃ_２２とＣ_１８の飽和アルキル）が結合しており、このアルキル基が疎水基として機能する。そのため、ベヘンジモニウムエチルリン酸ステアリルは、界面活性剤として機能し得る。より詳しくは、ベヘンジモニウムエチルリン酸ステアリルは、カチオン性部分とアニオン性部分との両方を含むため、両性界面活性剤（両イオン性界面活性剤）として分類される。また、ベヘンジモニウムエチルリン酸ステアリルは、リン脂質と類似の化学構造を有しているため、界面活性剤として使用され得るリン脂質との親和性が高い。したがって、本乳化組成物は、ベヘンジモニウムエチルリン酸ステアリルを含むことで、界面活性剤（特にリン脂質）の乳化を補い、乳化安定性を向上させることができる。また、ベヘンジモニウムエチルリン酸ステアリルはリン脂質と類似の構造を有することから、皮膚への親和性が高いと考えられ、本乳化組成物（特に化粧料）を皮膚に適用したときに、なめらかさなどの良好な使用感や保湿性などを得ることができる。ベヘンジモニウムエチルリン酸ステアリルは、市販のもの（例えば、日油株式会社製「Ｖｉｎｏｖｅｉｌ－ＢＳ－１００Ｐ」）を用いることができる。 Ingredient (B)
The component (B) behendimonium stearyl ethylphosphate is a substance represented by the following structural formula, and has a phosphocholine structure (-N ⁺ (CH ₃ ) ₂ (CH ₂ ) ₂ -O-PO in the molecule. It is a compound having ₃ ^--- ).

The portion of phosphocholine (also referred to as a phosphocholine group) is a polar group of phospholipids and functions as a hydrophilic group. Further, an alkyl group (saturated alkyl of C ₂₂ and C ₁₈ ) is bonded to both sides of the phosphocholine group, and this alkyl group functions as a hydrophobic group. Therefore, stearyl behendimonium ethyl phosphate can function as a surfactant. More specifically, stearyl behendimonium ethylphosphate is classified as an amphoteric surfactant (amphoteric surfactant) because it contains both a cationic and anionic moiety. Further, since stearyl behendimonium ethyl phosphate has a chemical structure similar to that of phospholipids, it has a high affinity with phospholipids that can be used as a surfactant. Therefore, the present emulsified composition can supplement the emulsification of the surfactant (particularly phospholipid) and improve the emulsification stability by containing stearyl behendimonium ethyl phosphate. In addition, since stearyl behendimonium ethyl phosphate has a structure similar to that of phospholipids, it is considered to have a high affinity for the skin, and when this emulsified composition (particularly cosmetics) is applied to the skin, it is smooth. It is possible to obtain a good feeling of use such as rust and moisturizing properties. As the stearyl behendimonium ethyl phosphate, a commercially available product (for example, “Vinoveil-BS-100P” manufactured by NOF CORPORATION) can be used.

The content of the component (B) (stearyl behendimonium ethyl phosphate) in the emulsified composition is not limited to this, but from the viewpoint of improving the emulsification stability, the total amount of the emulsified composition (100 weight by weight). %), Which can be 0.001 to 20% by weight, preferably 0.01 to 15% by weight, more preferably 0.1 to 10% by weight, still more preferably 0.2 to 10% by weight. , Even more preferably 0.3 to 9% by weight, and even more preferably 0.4 to 8% by weight. As the amount of the component (B) increases, the ability of the component (A) to assist the surfactant increases and the emulsion stability of the composition can be improved. In particular, when the component (B) exceeds 0.1% by weight (particularly 0.2% by weight or more, further 0.3% by weight or more, or 0.4% by weight or more), the emulsion stability is significantly improved. However, if the amount of the component (B) is too large, the feeling of use may be impaired. Therefore, it is preferable to use the above upper limit (preferably 20% by weight or less).

Ingredient (C)
The liquid polar oil of the component (C) can constitute a major oil component in the oil-in-water emulsified composition (that is, an emulsion) of the present invention. The inclusion of liquid polar oil makes it possible to give an excellent feeling of use to cosmetics and the like. Specifically, the polar oil can improve the proper adhesion and spread on the skin, give a smooth feeling of use during use (during application), and become sticky after use. It is possible to give an appropriate film feeling while suppressing the feeling and the feeling of tightness. As used herein, the term polar oil means an oil having intramolecular polarity. Further, in the present specification, the liquid in the polar oil is preferably a liquid at a normal temperature (for example, 10 to 30 ° C.) when the cosmetic is used, for example, normal temperature (specifically, 25 ° C.). It means that it is a liquid under the conditions of.

Liquid polar oils include, but are not limited to, synthetic ester oils and natural ester oils, higher alcohols, fatty acids and the like. Among them, preferably, the component (C) is a liquid polar oil selected from synthetic or natural fatty acids, fatty acid esters thereof, or higher alcohols which are in liquid form at room temperature (specifically, 25 ° C.). Is preferable.

The synthetic ester oil is not particularly limited, but as an ester of a synthetic fatty acid, an ester of a fatty acid and a lower or higher alcohol, or a fatty acid and a polyhydric alcohol (for example, a dihydric or trihydric alcohol). Examples include esters, diesters or triesters, and the like.

Synthetic ester oils, in particular as esters of synthetic fatty acids, specifically cetyl 2-ethylhexanate, isopropyl myristate, isododecyl myristate, octyldodecyl myristate, isopropyl palmitate, -2-ethylhexyl palmitate, olein. Ethyl acid, oleyl oleate, propylene glycol dicaprate, neopentyl glycol dicaprate, diisostearyl malate, diisobutyl adipate, glyceryl monoisostearate, glyceryl diisostearate, glyceryl triisostearate, polyglyceryl-2 monoisostearate, diisosteary Polyglyceryl-2 acid, polyglyceryl-2 triisostearate, polyglyceryl-2 tetraisostearate, glyceryl tri-2-ethylhexarate, glyceryl trioctanoate, glyceryl tri (capryl capric acid), neopentyl di-2-ethylhexanoate Glycol, octyldodecyl lactate, pentaerythrit tetraisostearate, pentaerythrit tetra2-ethylhexanoic acid (pentaerythrityl tetraethylhexanate), tritridecyl trimeritoate, cyclohexane-1,4-dicarboxylate bisethoxydiglycol, and Examples thereof include isotridecyl isononanoate, isononyl isononanoate, alkyl benzoate (C12-15), ethylhexyl methoxycinnamate, ethylhexyl salicylate, ascorbyl tetrahexyldecanoate, polyhydroxystearic acid, dimerjilinolate di (isostearyl / phytosteryl), and the like. However, it is not limited to this. In addition to the above-mentioned synthetic fatty acid esters, N-lauroyl-L-glutamic acid di (phytosteryl 2-octyldodecyl), tocopherol acetate, dialkyl carbonate, dimer dilinoleyl hydrogenated rosin condensate, polysilicone-15. , Etc. are also exemplified, but the present invention is not limited to this. Of these, diesters or triesters of fatty acids and polyhydric alcohols, such as glyceryl tri2-ethylhexanoate (also known as triethylhexanoin), are more preferred.

Natural ester oils, especially as esters of natural fatty acids, specifically avocado oil, camellia oil, macadamia nut oil, corn oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern ka oil, Sunflower oil, flaxseed oil, safflower oil, cottonseed oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, cinnamon oil, jojoba oil, and germ oil, abrana seed oil, almond oil, apricot kernel oil, egoma Oil, orange oil, kiwi seed oil, grape seed oil, rice germ oil, sage oil, cha seed oil, evening primrose oil, honeybee oil, peanut oil, sunflower oil, sunflower seed oil, meadowfoam oil, rosemary oil, jojoba seeds Examples include, but are not limited to, oils, lavender oils, rosehip oils, mink oils and the like.

Specific examples of the higher alcohol include, but are not limited to, isostearyl alcohol, 2-hexyldecanol, and oleyl alcohol.

Specific examples of the fatty acid include, but are not limited to, isostearic acid, isoparmitic acid, and oleic acid. Of these, isostearic acid is more preferred.

The content of the component (C) (the total amount if there are a plurality of them) is not limited to this, but is an emulsified composition having a good usability (smoothness, good back skin, etc.) (particularly cosmetics). ) Can be 0.001 to 50% by weight, preferably 0.01 to 40% by weight, more preferably 0.1 to 50% by weight, based on the total amount (100% by weight) of the emulsified composition. It can be 30% by weight, more preferably 1 to 20% by weight.

Ingredient (D)
Fatty acid glyceryl is an ester of fatty acid and glycerin. Also called glycerin fatty acid ester. The inclusion of the fatty acid glyceryl can further improve the emulsion stability. Examples of the fatty acid glyceryl include, but are not limited to, glyceryl stearate, hydrogenated canola oil fatty acid glyceriz, and glyceryl isostearate. As the fatty acid glyceryl, one or more selected from glyceryl stearate and hydrogenated rapeseed oil fatty acid glyceriz is particularly preferable, and glyceryl stearate is more preferable. The fatty acid glyceryl of the component (D) may be a polar oil, but at this time, it may be a solid polar oil or a liquid polar oil. In the case of liquid polar oil, it also serves as component (C). In one embodiment, component (D) can be solid.

The content of the component (D) (the total amount if there are a plurality of them) is not limited to this, but is based on the total amount (100% by weight) of the main emulsified composition from the viewpoint of improving the emulsification stability. , 0.001 to 20% by weight, preferably 0.01 to 15% by weight, more preferably 0.1 to 10% by weight.

Ingredient (E)
In this emulsified composition, the water-soluble polymer dissolves in the aqueous phase, which is the outer phase, to form a polymer network, further increases the viscosity, makes it difficult to separate the phases, and stabilizes the emulsified state of the composition. It is thought that can be improved. Examples of the water-soluble polymer include a copolymer of polyacrylic acid and alkyl methacrylate, an acrylic acid-based polymer such as crosslinked polyacrylic acid, and polysaccharides. Specific examples thereof include, for example. (Acrylate / Alkyl acrylate (C10-30)) Crosspolymer, Carbomer, Xanthan gum, Cellulous gum, Agar, Gellan gum, Methyl cellulose, Hydroxy ethyl cellulose, Hydroxypropyl methyl cellulose, Sodium acrylate / Acryloyldimethyltaurine sodium copolymer, Polyvinyl alcohol, Examples include, but are not limited to, collagen, hyaluronic acid, acrylicite copolymers, and carrageenan. The water-soluble polymer is particularly preferably one or more selected from (Acrylate / alkyl acrylate (C10-30)) crosspolymer, carbomer, and xanthan gum, and (Acrylate / alkyl acrylate (C10-30)) crosspolymer. And one or more selected from carbomer is more preferred. The (Acrylate / alkyl acrylate (C10-30)) crosspolymer includes what is called an acrylic acid / alkyl methacrylate copolymer. As the (Acrylate / alkyl acrylate (C10-30)) cross polymer, a commercially available product (for example, manufactured by LUBRIZOL) can be used.

The content of the component (E) (the total amount if there are a plurality of them) is not limited to this, but is based on the total amount (100% by weight) of the main emulsified composition from the viewpoint of improving the emulsification stability. , 0.0001 to 10% by weight, preferably 0.001 to 5% by weight, and more preferably 0.01 to 1% by weight.

Ingredient (F)
The water of the component (F) is an essential component in the oil-in-water emulsification composition. The water is not limited to this, but purified water is preferably used. In this emulsified composition, the emulsified form is an oil-in-water type (O / W), the aqueous phase is the outer phase, and the oil phase is the inner phase.

The component (F) can be the component having the highest content in the emulsified composition. The water content of the component (F) in the oil-in-water emulsion composition is preferably larger than the total amount of the oily component, and may be twice or more or three times or more the total amount of the oily component. Further, the content of the component (F) is not limited to this, but can be 1 to 99% by weight, preferably 10 to 99% by weight, based on the total amount (100% by weight) of the emulsified composition. It can be 98% by weight, more preferably 20 to 95% by weight, even more preferably 30 to 90% by weight. Further, although it depends on the form of the pharmaceutical product, the content of the component (F) may be 40% by weight or more, 50% by weight or more, 60% by weight or more, or 70% by weight or more.

The emulsified composition preferably further contains a higher alcohol as the component (G). The higher alcohol further stabilizes the emulsification and improves the feeling of use such as smoothness on the skin. In the present invention, the destabilization of the composition due to the movement of the emulsifying interface of the higher alcohol (from the oil phase to the aqueous phase or from the aqueous phase to the oil phase) due to the stearyl behendimonium ethyl phosphate of the component (B) ( It is speculated that an increase or decrease in viscosity, gelation, etc.) can be particularly suppressed, but the present invention is not limited to this estimation. In the present specification, the higher alcohol has a chain hydrocarbon group having 6 or more carbon atoms (specifically, 6 to 24 carbon atoms, preferably 8 to 22 carbon atoms, more preferably 10 to 20 carbon atoms). It means monohydric alcohol. Examples of the higher alcohol include, but are not limited to, lauryl alcohol, myristyl alcohol, cetyl alcohol (cetyl alcohol), isostearyl alcohol, stearyl alcohol, behenyl alcohol, and cetostearyl alcohol. As the higher alcohol, cetostearyl alcohol is particularly preferable. The higher alcohol of the component (G) may be classified as a polar oil, but at this time, it may be a solid polar oil or a liquid polar oil. When the component (G) is a liquid polar oil, it also serves as the component (C). In one embodiment, component (G) can be solid.

When the component (G) is contained in the main emulsification composition, the content of the component (G) (the total amount if there are a plurality of them) is not limited to this, but from the viewpoint of improving the emulsification stability. , 0.0001 to 20% by weight, preferably 0.001 to 10% by weight, more preferably 0.01 to 5% by weight, based on the total amount of the emulsified composition (100% by weight). be able to. In certain embodiments, the emulsified composition may not contain the component (G), in which case the content will be 0% by weight.

The emulsified composition preferably further contains a fatty acid as the component (H). Fatty acids further stabilize emulsification and improve the feeling of use such as smoothness on the skin. As the fatty acid, a higher fatty acid is preferable. In the present specification, the higher fatty acid means a fatty acid having 12 or more carbon atoms. The fatty acid may be a saturated fatty acid or an unsaturated fatty acid, but a saturated fatty acid is preferable from the viewpoint of stability and the like. Examples of the fatty acid (higher fatty acid) include, but are not limited to, lauric acid, myristic acid, palmitic acid, stearic acid, and isostearic acid. As the higher fatty acid, one or more selected from stearic acid and isostearic acid are particularly preferable. The higher fatty acid of the component (H) may be classified as a polar oil, but at this time, it may be a solid polar oil or a liquid polar oil. When the component (H) is a liquid polar oil, it also serves as the component (C). Isostearic acid corresponds to a liquid polar oil. In one embodiment, component (H) can be solid.

When the component (H) is contained in the main emulsification composition, the content of the component (H) (the total amount if there are a plurality of them) is not limited to this, but from the viewpoint of improving the emulsification stability. , 0.0001 to 20% by weight, preferably 0.001 to 10% by weight, more preferably 0.01 to 5% by weight, based on the total amount of the emulsified composition (100% by weight). be able to. In some embodiments, the emulsified composition may be free of component (H), in which case the content will be 0% by weight.

Other Ingredients The emulsified composition may contain various ingredients that can be blended as an oil-in-water emulsified composition (particularly cosmetics). Such ingredients include, for example, moisturizers, thickeners, powders, pigments, UV absorbers, film-forming agents, pH regulators, anti-fading agents, antioxidants, defoamers, cosmetological ingredients, plant extracts. Examples include extracts, preservatives and fragrances. For example, the pH regulator can also adjust the viscosity of certain water-soluble polymers (eg, (eg, (Acrylate / alkyl acrylate (C10-30)) cross-polymers and acrylic acid-based polymers such as carbomer). , Preferredly used. The pH adjuster is not particularly limited, and examples thereof include sodium hydroxide, potassium hydroxide, and triethanolamine.

Further, the emulsified composition may further contain a nonionic surfactant having an HLB of less than 12.0 as long as it contains the components (A) to (F). Nonionic surfactants with an HLB of less than 12.0 include, but are not limited to, sorbitan sesquioleate, PEG-5 phytosterols, and polyoxyethylene alkyl (12-15) ether phosphate (8E). O.), etc.

Further, the present emulsified composition may contain a solid polar oil. As described above, the solid polar oil may be contained as a component (D), a component (G) and a component (H), or may be contained as other components. Examples of the solid polar oil include, but are not limited to, ester oils such as synthetic ester oils and natural ester oils, higher alcohols, and fatty acids. Specific examples thereof include, but are not limited to, di (octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, stearyl alcohol, lauric acid, and hexyl diethylaminohydroxybenzoylbenzoate. In addition, in this specification, a solid in a polar oil means a solid under the condition of 25 degreeC.

The emulsified composition may contain a non-polar oil. As used herein, the term non-polar oil means an oil composed of non-polar molecules. Examples of the non-polar oil include hydrocarbon compounds and silicon-based compounds. Specific examples thereof include light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, synthetic squalane, vegetable squalane, squalane, and α-olefin oligomer. , Vaseline, isododecane, and hydrogenated polyisobutene, dimethicone, diphenylsiloxyphenyltrimethicone, cyclopentasiloxane, and the like, but are not limited thereto.

Further, the present emulsified composition may contain an oily component other than the oily component exemplified above. Such oily components include dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), stearic acid-hardened stearic acid oil, hexa (hydroxystearic acid / stearic acid / loginic acid) dipentaerythrityl, isostearic as paste oil. Dextrin acid, etc., examples of the solid oil include bisethylhexyloxyphenol methoxyphenyltriazine, etc., and examples of the solid aqueous dispersible component include methylenebisbenzotriazolyltetramethylbutylphenol, etc. It is not limited to this.

The emulsified composition may optionally contain a water-soluble liquid component. Examples of the water-soluble liquid component include water-soluble alcohols and polyhydric alcohols. Water-soluble alcohols include, but are not limited to, ethanol, methanol, propanol, isopropanol and the like. Examples of the polyhydric alcohol include, but are not limited to, glycerin, diglycerin, 1,3-butylene glycol, and dipropylene glycol.

Preferred component ratio In this emulsified composition, the ratio of the content of the component (D) to the component (B) ((D) / (B)) is preferably 0.2 or more in terms of weight ratio, and is 0. It is more preferably 3 or more, and further preferably 0.4 or more. By increasing this ratio ((D) / (B)) as described above, the emulsification stability is further improved, and an emulsified composition having a good usability can be obtained. This ratio ((D) / (B)) may be 0.5 or more, or 0.8 or more. However, if this ratio ((D) / (B)) becomes too high, the content of the component (B) in the emulsified composition may become relatively too low. Therefore, for example, this ratio ((D) / (D)). ) / (B)) may be preferably 20 or less, more preferably 10 or less, still more preferably 5 or less, but is not limited thereto.

In the present emulsified composition, the ratio of the content of the component (B) to the component (A) ((B) / (A)) is preferably 0.05 or more, preferably 0.1 or more in terms of weight ratio. It is more preferably present, and more preferably 0.2 or more. By increasing this ratio ((B) / (A)) as described above, the emulsification-assisting action of the component (B) on the component (A) can be effectively obtained, so that the emulsification stability is further improved. Further, by increasing the ratio of the component (B) among the components capable of having a surface active ability, it is possible to more easily obtain an emulsified composition having good hind skin (appropriate film feeling). .. This ratio ((B) / (A)) may be 0.3 or more, 0.5 or more, or 0.8 or more. However, if this ratio ((B) / (A)) is too high, the content of the component (A) in the emulsified composition may be relatively too low, and the surface activity may be lowered. Since the goodness of the back skin (appropriate film feeling) may also be deteriorated, for example, this ratio ((B) / (A)) is preferably 30 or less, more preferably 20 or less, still more preferably 10 or less. It may be, but it is not limited to this.

In the present emulsified composition, the ratio of the total content of the polar oil including the component (C) to the total amount of the oily component (polar oil / total amount of the oily component) is preferably 0.05 or more in terms of weight ratio. , 0.1 or more is more preferable, and 0.2 or more is further preferable. As this ratio (polar oil / total amount of oily components) increases, the ratio of polar oils contained in the oily components increases, and the back skin (moderate adhesion and film feeling) is good, and it stretches and becomes smooth during use. It is possible to easily obtain an emulsified composition (particularly a cosmetic) that gives a good feeling of use. Here, in this ratio, the polar oil is a polar oil containing the component (C), that is, a liquid polar oil, a solid (solid) polar oil, and a semi-solid polarity when blended. Means all polar oils, including oils. Therefore, the content of polar oil means the total amount of polar oil. Further, the oily component means the whole oily component including polar oil and non-polar oil. The oily component does not include water, surfactants, water-soluble polymers, inorganic salts and organic salts. This ratio (polar oil / total amount of oily components) may be 0.3 or more, 0.5 or more, or 0.8 or more. Since polar oil is a constituent of oily components, the upper limit of this ratio (polar oil / total amount of oily components) is 1 (when all of the oily components are polar oils), that is, this ratio (polar oil /). The total amount of oily components) is 1 or less.

In this emulsified composition, the ratio of the total content of the component (A) and the component (B) to the total amount of the oily component (((A) + (B)) / total amount of the oily component) is 0. It is preferably 01 or more, more preferably 0.03 or more, and even more preferably 0.05 or more. By increasing this ratio (((A) + (B)) / total amount of oily component), the oily component can be emulsified with a more sufficient amount of the component (A) and the component (B), and the emulsification stability can be achieved. Can be improved. As described above, the oily component means the entire oily component including polar oil and non-polar oil, and the oily component includes water, a surfactant, a water-soluble polymer, an inorganic salt and an organic salt. Is not included. This ratio (((A) + (B)) / total amount of oily components) may be 0.06 or more, 0.08 or more, or 0.09 or more. However, if this ratio (((A) + (B)) / total amount of oily components) becomes too high, the total amount of the components (A) and the components (B) in this emulsified composition exceeds the amount required for emulsification. This ratio (((A) + (B)) / oiliness, for example, may be too high and excessive, or the content of the oily component may be relatively low and the usability may be deteriorated. The total amount of components) may be preferably 1 or less, more preferably 0.8 or less, still more preferably 0.6 or less, but is not limited thereto.

The present emulsified composition is preferably an emulsified cosmetic (that is, an oil-in-water emulsified cosmetic). In that case, it is possible to obtain a cosmetic having excellent emulsification stability and a good usability. Examples of the cosmetics include skin cosmetics and hair cosmetics, and the present emulsified composition is particularly preferably an emulsified composition for the skin, particularly a skin cosmetic (cosmetic for the skin). In addition, this emulsified composition can be applied to emulsified compositions for all purposes, including skin care products and makeup products. This emulsified composition can give a smooth feel during use (during application), have a good back skin, reduce stickiness and stickiness after application, and can give a film feeling.

The skin cosmetics are not particularly limited as long as they are in the form of oil-in-water emulsification, and can be used as cosmetics for various purposes. For example, cosmetics such as milky lotion, cream, beauty essence, hand cream, eye cream, body cream, makeup cosmetics, makeup base, and foundation are exemplified. Examples of the method of using the skin cosmetic include a method of applying it to a hand or a finger, a method of using it with cotton, a method of impregnating it with a non-woven fabric or the like, and a method of spraying it with a spray or mist.

The hair cosmetic is not particularly limited as long as it is in the form of oil-in-water emulsification, and can be used as a cosmetic for various purposes. For example, cosmetics such as hair cream, hair wax, hair rinse, hair mask, and hair treatment are exemplified. Examples of the method of using the hair cosmetic include a method of applying it to a hand or a finger, a method of spraying it with a spray or a mist, and the like.

The present emulsified composition can be produced by mixing the above-mentioned components. For example, a method can be used in which a preheated and mixed aqueous component and a preheated and mixed oily component are mixed and emulsified, and then cooled. Of course, the method for producing the present emulsified composition is not limited to this.

The present specification discloses a method for stabilizing emulsification in the production of an oil-in-water emulsified composition, which comprises mixing the components (A) to (F). As mentioned above, the formulation of stearyl behendimonium ethyl phosphate can stabilize emulsification. The application method, application means, and the like are not particularly limited, but are preferably as described above.

As described above, in one embodiment of the present invention, a hydrophilic surfactant (particularly phospholipid) (component (A)) is used as the main emulsifying agent, and stearyl behendimonium ethyl phosphate (component (B)) is used. By using it as an emulsification aid, even in an oil-in-water emulsification composition (especially cosmetics) containing a liquid polar oil (component (C)) (particularly high content), the emulsification stability is high and the feel is smooth. It is possible to provide an oil-in-water emulsified composition that is excellent and has an excellent film feeling (non-stickiness) on the back skin. When the higher alcohol (component (G)) is further blended, the effects of the higher alcohol on the emulsification stability and the usability can be obtained, and in addition, the viscosity change and gelation caused by the higher alcohol can be obtained. It is possible to suppress the above-mentioned problem, and it is possible to provide a stable oil-in-water emulsified composition.

Hereinafter, the oil-in-water emulsified composition according to the present invention will be described with reference to Examples, but the present invention is not limited to the Examples.

Tables 1 and 2 show the components of the emulsified compositions (emulsified cosmetics, specifically emulsions) of Examples 1 to 24 and Comparative Examples 1 to 6, their blending amounts (% by weight), the relationship between weight ratios, and stability. The result of evaluation such as sex is shown.

The examples and comparative examples shown in Tables 1 and 2 were produced by the following methods.
Production Methods of Examples 1 to 11 and 16 to 24 (1) Ingredients (A), (B), (C), (D), (G) and (H) are mixed, and (for Example 8, further Liquid paraffin was mixed) and dissolved by heating at 75 ° C. to obtain a solution (oil phase).
(2) The components (E), (F) and sodium hydroxide were mixed and dissolved by heating at 75 ° C. to obtain a solution (aqueous phase).
(3) The solution of (1) above was added to the solution of (2) above, mixed, and emulsified.
(4) The mixture of the above (3) was cooled to obtain an emulsified composition.

Production Methods of Examples 12 to 15 (1) Ingredients (B), (C), (D), (G) and (H) were mixed and dissolved by heating at 75 ° C. to obtain a solution.
(2) The components (A), (E), (F) and sodium hydroxide were mixed and dissolved by heating at 75 ° C. to obtain a solution (aqueous phase).
(3) The solution of (1) above was added to the solution of (2) above, mixed, and emulsified.
(4) The mixture of the above (3) was cooled to obtain an emulsified composition.

Production Method of Comparative Examples 1 to 6 Comparative Example 1 was produced in the same manner as in Example 1 except that the component (A) was not blended, to obtain an emulsified composition.
Comparative Example 2 was produced in the same manner as in Example 12 except that polyoxyethylene hydrogenated castor oil (HLB10.5) was used instead of the component (A) to obtain an emulsified composition.
Comparative Example 3 was produced in the same manner as in Example 1 except that the component (B) was not blended, to obtain an emulsified composition.
Comparative Example 4 was produced in the same manner as in Example 1 except that the component (E) and sodium hydroxide were not blended, to obtain an emulsified composition.
Comparative Example 5 was produced in the same manner as in Example 1 except that the component (D) was not blended, to obtain an emulsified composition.
Comparative Example 6 was produced in the same manner as in Example 8 except that the component (C) was not blended, to obtain an emulsified composition.

The emulsified compositions of Examples and Comparative Examples shown in Tables 1 and 2 were evaluated by the following methods.
Emulsification stability The emulsified composition was allowed to stand in a constant temperature bath at 40 ° C. for 1 month (30 days), and the presence or absence of changes in appearance such as separation was visually observed. We confirmed the number of days until appearance changes (phase separation, etc.) were observed.
⊚: No change in appearance was observed until after 30 days ○: No change in appearance was observed between 14th to 29th △: No change in appearance was observed between 2nd to 13th day ×: Quiet in a constant temperature bath Appearance change was observed between 1 day after placement

Suppression of crystals immediately after production The presence or absence of crystals was visually observed in the emulsified composition immediately after production.
◎: No crystals are observed ○: Crystals are slightly observed, but the amount is very small and does not bother me at all when touched by the skin △: Crystals are slightly observed, but on the skin, although it is a small amount I'm worried when I touch it (I can recognize its existence)
×: Crystals are clearly recognized

Suppression of crystals over time The emulsified composition was allowed to stand in a constant temperature bath at 40 ° C. for 1 week (7 days), and the presence or absence of crystals was visually observed.
◎: No crystals are observed ○: Crystals are slightly observed, but the amount is very small and does not bother me at all when touched by the skin △: Crystals are slightly observed, but on the skin, although it is a small amount I'm worried when I touch it (I can recognize its existence)
×: Crystals are clearly recognized

Smoothness in use Twenty professional evaluation panels evaluated in four stages according to the following absolute criteria (scores), and the average value was calculated from the total scores of all the panels and judged according to the following criteria. Specifically, each sample was placed on the skin, and it was evaluated whether or not the smoothness (good stretch and spread) was felt when the sample was stretched and spread.
<Score>
3: Sufficient smoothness (stretching and spreading) 2: Feeling smoothness (stretching and spreading), but slightly insufficient 1: Smoothness (stretching and spreading) is slightly insufficient 0: Smoothness (Expansion and spread) is insufficient <Judgment criteria>
(Average score): (Judgment)
2.5 points or more: ◎
2 points or more and less than 2.5 points: ○
1 point or more and less than 2 points: △
Less than 1 point: ×

(Back skin) Appropriate film feeling Twenty professional evaluation panels evaluated in four stages according to the following absolute criteria (scores), and the average value was calculated from the total scores of all the panels and judged according to the following criteria. Specifically, it was evaluated whether or not the skin after spreading and spreading each sample on the skin did not feel sticky or sticky, and whether or not the skin felt a film feeling.
<Score>
3: You do not feel sticky or sticky feeling, and you can feel the film feeling sufficiently 2: You do not feel sticky feeling or sticky feeling, but the film feeling is slightly insufficient 1: Either sticky feeling or sticky feeling Feeling that the film feeling is a little insufficient 0: Feeling either sticky feeling or sticky feeling, the film feeling is insufficient <Judgment criteria>
(Average score): (Judgment)
2.5 points or more: ◎
2 points or more and less than 2.5 points: ○
1 point or more and less than 2 points: △
Less than 1 point: ×

Results In Examples 1 to 24 containing the components (A) to (F), all the evaluation items (emulsification stability, suppression of crystals immediately after production, suppression of crystals over time, smoothness during use, and smoothness during use, and In (rear skin) moderate film feeling), there was no evaluation of ×, and the emulsification stability and usability were well-balanced and good. On the other hand, Comparative Examples 1 to 6 show an evaluation of × in the evaluation item of “(rear skin) moderate film feeling”, and Comparative Examples 3 to 5 have “emulsification stability” and “crystals immediately after production”. The evaluation of x was also given in "suppression of crystals over time" and "suppression of crystals over time".

Example (prescription example)
The following examples, which can be used as cosmetics, were manufactured. In the following examples, the term "remaining amount" in the blending amount (% by weight) means that the total amount is 100% by weight.

Example 25: Emulsion (ingredient) (% by weight)
1. 1. Hydrogenated soybean phospholipid (hydrogenated soybean lecithin) (ingredient A) 1.0%
2. 2. Stearyl Behendimonium Ethyl Phosphate (Component B) 1.0%
3. 3. Dicapric acid PG (ingredient C) 5.0%
4. Glyceryl tri2-ethylhexanoate (component C) 3.0%
5. Isotridecyl isononanoate (component C) 1.0%
6. Isostearic acid (component C) (component H) 2.0%
7. Ethyl oleate (component C) 0.5%
8. Jojoba oil (ingredient C) 1.0%
9. Glyceryl stearate (ingredient D) 1.5%
10. Behenyl alcohol (ingredient G) 0.5%
11. Setostearyl alcohol (ingredient G) 1.5%
12. Squalene 3.0%
13. Vaseline 0.5%
14. Lauroyl glutamic acid (octyldodecyl / phytosteryl / behenyl)
0.5%
15. Dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) 0.3%
16. Ascorbyl tetrahexyldecanoate (ingredient C) 0.2%
17. Carbomer (ingredient E) 0.1%
18. (Acrylate / Alkyl Acrylate (C10-30) Cross Polymer) (Component E) 0.1%
19. Xanthan gum (ingredient E) 0.1%
20.1,3-butylene glycol 8.0%
21. Dipropylene glycol 3.0%
22. Sodium hydroxide 0.06%
23. Ethanol 3.0%
24. Phenoxyethanol 0.5%
25. Matsurika flower extract, grape leaf extract, sardine leaf extract, bifidus bacterium culture lysate, Satozakura flower extract, polyquaternium-51, Neubara fruit extract, Hamanasu flower extract, Izayoi rose extract, water-soluble collagen, royal jelly extract, touki root extract, centi Folia rose flower extract, damask rose flower water, rosemary leaf extract, acerola fruit extract, acetylglutamic acid, theanine, glycine, hydrolyzed hyaluronic acid, and Na hyaluronate mixture (mixture of beauty ingredients)
1.0%
26. Purified water (component F) Remaining amount

(Production method)
(1) Ingredients 1 to 16 were heated and dissolved at 75 ° C. to obtain a solution (oil phase).
(2) Components 17 to 21 were mixed, a part of the component 26 was added, and the mixture was heated and mixed at 75 ° C. to obtain a solution (aqueous phase).
(3) Ingredient 22 and the remaining ingredient 26 were added to the solution of (2) above to obtain a solution (aqueous phase).
(4) The above (1) was added to the above solution (3) and emulsified to obtain an emulsion.
(5) After cooling the emulsion of (4) above, the uniformly mixed components 23 and 24 were added, and then the components 25 were added and mixed to obtain an emulsified composition.
(evaluation)
It was confirmed that the emulsion of Example 25 had good emulsification stability and a feeling of use (smoothness during use, back skin, etc.).
The relationship of weight ratio was as follows. (D) / (B) was 1.5. (B) / (A) was 1.0. Here, the oily components are components 3 to 16, and the total amount thereof is 20.5%. Further, the components other than the components 12 and 13 among the oily components are polar oils, and the total amount thereof is 17.0%. Therefore, the total amount of polar oil / oily component was 0.829. ((A) + (B)) / The total amount of oily components was 0.098.

Example 26: Cream (ingredient) (% by weight)
1. 1. Hydrogenated soybean lysophosphatid (hydrogenated soybean lysolecithin) (ingredient A) 0.5%
2. 2. N-stearoyl-N-methyl taurine sodium (component A) 0.2%
3. 3. Polyethylene glycol monostearate (component A) 0.1%
4. Stearyl Behendimonium Ethyl Phosphate (Component B) 1.2%
5. Polyoxyethylene alkyl (12-15) ether phosphoric acid (8EO)
0.01%
6. N-stearoyl-L-monosodium glutamate (component A) 0.05%
7. Stearic acid hardened castor oil 1.0%
8. Dicapric acid PG (ingredient C) 3.0%
9. Hexa (hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl
1.0%
10. Dilinolate (isostearyl / phytosteryl) (component C) 1.0%
11. Polyglyceryl-2 diisostearate-2 (component C) 2.0%
12.2-Setyl ethylhexanoate (component C) 2.0%
13. Ethyl oleate (component C) 0.2%
14. Meadowfoam oil (ingredient C) 2.0%
15. Olive oil (ingredient C) 1.5%
16. Behenyl alcohol (ingredient G) 1.5%
17. Setostearyl alcohol (ingredient G) 2.5%
18. Glyceryl stearate (ingredient D) 1.5%
19. Hydrogenated canola oil fatty acid glyceriz (ingredient D) 0.5%
20. Squalan 2.0%
21. Liquid paraffin 3.0%
22. Dimethicone 0.5%
23. Dextrin isostearate 0.1%
24. Tocopherol acetate (component C) 0.01%
25. (Acrylate / Alkyl Acrylate (C10-30) Cross Polymer) (Component E) 0.2%
26. Xanthan gum (ingredient E) 0.1%
27. Carrageenan (ingredient E) 0.01%
28. Hydroxypropyl Methyl Cellulose (Component E) 0.01%
29. Sodium Acrylate / Acryloyldimethyltaurine Sodium Copolymer (Component E) 0.1%
30.1,3-butylene glycol 6.0%
31. Glycerin 1.0%
32. Diglycerin 1.0%
33. Sodium hydroxide 0.06%
34. Ethanol 3.0%
35. Phenoxyethanol 0.1%
36. Methylparaben 0.05%
37. Hydrolyzed conchiolin solution, Gentiana extract, Hydrolyzed silk solution, Hydrolyzed rice extract, Seaweed extract, L-serine, Iwashobu leaf extract, Kawarayomogi flower extract, Getto leaf extract, Saccharomyces cerevisiae extract, Pomegranate fruit extract, Pomegranate peel extract , Tenninka fruit extract, eggplant fruit extract, halpagofitum root extract, parsley extract, royal jelly extract, rosa alba flower extract, avocado extract, amachazuru extract, chamomile water, purple kib fruit extract, apple extract, lemongrass extract, solitary extract, asparagus Mixture of gas extract, artemia extract, guava extract, coffee extract, taiso extract, grape leaf extract, and crackle extract (mixture of beauty ingredients)
2.0%
38. Purified water (component F) Remaining amount

(Production method)
(1) Components 1, 4, 7 to 24 were heated and dissolved at 75 ° C. to obtain a solution (oil phase).
(2) Components 2, 3, 5, 6, 25 to 32 were mixed, a part of the component 38 was added, and the mixture was heated and mixed at 75 ° C. to obtain a solution (aqueous phase).
(3) Ingredient 33 and the remaining ingredient 38 were added to the solution of (2) above to obtain a solution (aqueous phase).
(4) The above (1) was added to the above solution (3) and emulsified to obtain an emulsion.
(5) After cooling the emulsion of (4) above, the uniformly mixed components 34 to 36 were added, and then the components 37 were added and mixed to obtain an emulsified composition.
(evaluation)
It was confirmed that the cream of Example 26 had good emulsification stability and a feeling of use (smoothness during use, back skin, etc.).
The relationship of weight ratio was as follows. (D) / (B) was 1.67. (B) / (A) was 1.41. Here, the oily components are components 7 to 24, and the total amount thereof is 25.31%. Further, the components other than the components 20 to 22 among the oily components are polar oils, and the total amount thereof is 19.81%. Therefore, the total amount of polar oil / oily component was 0.783. ((A) + (B)) / The total amount of oily components was 0.081.

Example 27: Foundation (ingredient) (% by weight)
1. 1. Hydrogenated soybean phospholipid (hydrogenated soybean lecithin) (ingredient A) 1.5%
2. 2. Polyoxyethylene sorbitan monostearate (20EO) (component A)
0.5%
3. 3. Stearyl Behendimonium Ethyl Phosphate (Component B) 1.0%
4.2-Cetyl 2-ethylcaproate (component C) 1.0%
5. Glyceryl tri2-ethylhexanoate (component C) 1.0%
6. Isostearic acid (component C) (component H) 2.0%
7. Ethylhexyl methoxycinnamate (ingredient C) 5.0%
8. Diethylaminohydroxybenzoyl hexyl benzoate 1.0%
9. Glyceryl stearate (ingredient D) 0.5%
10. Behenyl alcohol (ingredient G) 0.4%
11. Setostearyl alcohol (ingredient G) 0.6%
12. Squalene 4.0%
13. Liquid paraffin 6.0%
14. Dimethicone 0.5%
15. Stearic acid (ingredient H) 1.5%
16. (Acrylate / Alkyl Acrylate (C10-30) Cross Polymer) (Component E) 0.2%
17. Carbomer (ingredient E) 0.1%
18. Xanthan gum (ingredient E) 1.5%
19.1,3-butylene glycol 6.0%
20. Triethanolamine 2.0%
21. Ethanol 3.0%
22. Phenoxyethanol 0.3%
23. Lecithin 0.5% treatment and aluminum hydroxide 3% treatment Titanium oxide (average particle size: 0.25 μm) 6.0%
24. Dimethicone / Aluminum hydroxide / Hydrous silica treated Titanium oxide (Average particle size: 0.030 μm) 1.0%
25. Lecithin 0.5% treatment Bengala 0.3%
26. Lecithin 0.5% treatment Yellow iron oxide 2.0%
27. Lecithin 0.5% treated black iron oxide 0.2%
28. Lecithin 1% treated talc (average particle size: 10.5 μm) 3.0%
29. Zinc oxide (average particle size 0.3 μm) 3.0%
30. Silica (Godball E-90C: Suzuki Oil & Fat Industry Co., Ltd.) 0.5%
31. Silica (Silo Fair C-1504: Fuji Silysia Chemical Ltd.)
0.5%
32. Sorbitan sesquioleate 0.5%
33. Polyoxyethylene sorbitan monooleate (20EO) (component A)
0.8%
34. Matsurika flower extract, grape leaf extract, sardine leaf extract, bifidus bacterium culture lysate, Satozakura flower extract, polyquaternium-51, Neubara fruit extract, Hamanasu flower extract, Izayoi rose extract, water-soluble collagen, royal jelly extract, touki root extract, centi Folia rose flower extract, damask rose flower water, rosemary leaf extract, acerola fruit extract, acetylglutamic acid, theanine, glycine, hydrolyzed hyaluronic acid, and Na hyaluronate mixture (mixture of beauty ingredients)
1.0%
35. Purified water (component F) Remaining amount

(Production method)
(1) Ingredients 1 to 15 were heated and dissolved at 75 ° C. to obtain a solution (oil phase).
(2) Components 16 to 19 were mixed, a part of the component 35 was added, and the mixture was heated and mixed at 75 ° C. to obtain a solution (aqueous phase).
(3) A solution (aqueous phase) was obtained by adding component 20 and the remaining component 35 to the solution of (2) above.
(4) The above (1) was added to the above solution (3) and emulsified to obtain an emulsion.
(5) After cooling the emulsion of (4) above, uniformly mixed components 21 and 22 are added, then component 34 is added, and then uniformly dispersed components 23 to 33 are added and mixed to obtain an emulsified composition. Obtained.
(evaluation)
It was confirmed that the foundation of Example 27 had good emulsification stability and a feeling of use (smoothness during use, back skin, etc.).
The relationship of weight ratio was as follows. (D) / (B) was 0.5. (B) / (A) was 0.357. Here, the oily components are components 4 to 15, and the total amount thereof is 23.5%. Further, the components other than the components 12 to 14 among the oily components are polar oils, and the total amount thereof is 13%. Therefore, the total amount of polar oil / oily component was 0.553. ((A) + (B)) / The total amount of oily components was 0.162.

Example 28: Sunscreen (ingredients) (% by weight)
1. 1. Hydrogenated soybean phospholipid (hydrogenated soybean lecithin) (ingredient A) 0.5%
2. 2. Polyoxyethylene sorbitan monooleate (20EO) (component A)
1.0%
3. 3. Stearyl Behendimonium Ethyl Phosphate (Component B) 2.0%
4. PEG-5 Phytosterol 0.6%
5. PEG-30 Phytosterol (Component A) 0.4%
6. Isostearic acid (component C) (component H) 2.0%
7. Ethylhexyl methoxycinnamate (component C) 7.0%
8. Diethylaminohydroxybenzoyl hexyl benzoate 2.0%
9. Polysilicone-15 (Component C) 3.0%
10. Bisethylhexyloxyphenol methoxyphenyl triazine
1.5%
11. Glyceryl stearate (ingredient D) 1.0%
12. Behenyl alcohol (ingredient G) 1.5%
13. Setostearyl alcohol (ingredient G) 0.5%
14. Tocopherol acetate (component C) 0.1%
15. Ceramide 3 0.1%
16. Ascorbyl tetrahexyldecanoate (ingredient C) 0.1%
17. Squalan 2.0%
18. Liquid paraffin 1.0%
19. Diphenylsiloxyphenyltrimethicone 3.0%
20. Dimethicone 0.5%
21. Stearic acid (ingredient H) 1.0%
22. (Acrylate / Alkyl Acrylate (C10-30) Cross Polymer) (Component E) 0.2%
23. Sodium Acrylate / Acryloyldimethyltaurine Sodium Copolymer (Component E) 0.4%
24.1,3-butylene glycol 6.0%
25. Glycerin 2.0%
26. Methylenebisbenzotriazolyl tetramethylbutylphenol 1.0%
27. Sodium hydroxide 0.06%
28. Ethanol 5.0%
29. Phenoxyethanol 0.2%
30. Fragrance 0.1%
31. Titanium triisostearate / (dimethicone / methicone) copolymer-treated zinc oxide (average particle size 0.025 μm) 15.0%
32. (Vinyl dimethicone / methicone silsesquioxane) Cross polymer
0.5%
33. Polyhydroxystearic acid (ingredient C) 2.5%
34. Sorbitan sesquioleate 0.5%
35. Seiyo Niwatoko Flower Extract, Cha Leaf Extract, Tencha Extract, Matsurika Flower Extract, Polyquaotanium-51, Neubara Fruit Extract, Hamanasu Flower Extract, Izayoi Rose Extract, Water Soluble Collagen, Royal Jelly Extract, Touki Root Extract, Centifolia Rose Flower Extract, Damask Rose A mixture of flower water, rosemary leaf extract, acerola fruit extract, acetylglutamic acid, theanine, glycine, hydrolyzed hyaluronic acid, and Na hyaluronate (mixture of beauty ingredients)
1.0%
36. Purified water (component F) Remaining amount

(Production method)
(1) Ingredients 1 to 21 were heated and dissolved at 75 ° C. to obtain a solution (oil phase).
(2) The uniformly dispersed components 31 to 34 were added to (1) above and mixed to obtain a solution (oil phase).
(3) Components 22 to 25 were mixed, and a part of the component 36 was added to obtain a solution (aqueous phase).
(4) Most of the components 27 and 36 were added to the solution of the above (3) and heated and mixed at 75 ° C. to obtain a solution (aqueous phase).
(5) The above (2) was added to the above solution (4) and emulsified to obtain an emulsion.
(6) After cooling the emulsion of (5) above, the component 26 and the remaining component 36 were added, and the uniformly mixed components 28 to 30 and 35 were added and mixed to obtain an emulsified composition.
(evaluation)
It was confirmed that the sunscreen of Example 28 had good emulsification stability and a feeling of use (smoothness during use, back skin, etc.).
The relationship of weight ratio was as follows. (D) / (B) was 0.5. (B) / (A) was 1.053. Here, the oily components are components 6 to 21, and the total amount thereof is 26.3%. Further, the components other than the components 17 to 20 among the oily components are polar oils, and the total amount thereof is 19.8%. Therefore, the total amount of polar oil / oily component was 0.753. ((A) + (B)) / The total amount of oily components was 0.148.

Claims (14)

The following components (A) to (F):
(A) One or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants,
(B) Behendimonium stearyl ethyl phosphate,
(C) Liquid polar oil,
(D) Fatty acid glyceryl,
(E) Water-soluble polymer and
(F) Water,
An oil-in-water emulsified composition containing. The oil-in-water emulsified composition according to claim 1, wherein the ratio of the content of the component (D) to the component (B) ((D) / (B)) is 0.4 or more in terms of weight ratio. The oil-in-water emulsified composition according to claim 1 or 2, wherein at least one of the components (A) is a phospholipid. The water according to any one of claims 1 to 3, wherein the ratio of the content of the component (B) to the component (A) ((B) / (A)) is 0.2 or more in terms of weight ratio. Oil-type emulsified composition. Any of claims 1 to 4, wherein the ratio of the total content of the polar oil including the component (C) to the total amount of the oily component (polar oil / total amount of the oily component) is 0.2 or more in terms of weight ratio. The oil-in-water emulsified composition according to item 1. Claimed that the ratio of the total content of the component (A) and the component (B) to the total amount of the oily component (((A) + (B)) / total amount of the oily component) is 0.05 or more in terms of weight ratio. Item 6. The oil-in-water emulsified composition according to any one of Items 1 to 5. The one according to any one of claims 1 to 6, wherein the component (C) is a liquid polar oil selected from synthetic or natural fatty acids, fatty acid esters thereof, and higher alcohols which are in liquid form at room temperature. Oil-in-water emulsified composition. The oil-in-water emulsified composition according to any one of claims 1 to 7, wherein the component (D) is glyceryl stearate. The water according to any one of claims 1 to 8, wherein the component (E) contains at least one selected from the group consisting of (acrylate / alkyl acrylate (C10-30)) crosspolymer and carbomer. Oil-type emulsified composition. The oil-in-water emulsified composition according to any one of claims 1 to 9, further comprising a higher alcohol as the component (G). The oil-in-water emulsified composition according to any one of claims 1 to 10, further comprising a fatty acid as a component (H). The oil-in-water emulsified composition according to any one of claims 1 to 11, which is an emulsified cosmetic. The oil-in-water emulsified composition according to any one of claims 1 to 12, which is for the skin. The following components (A) to (F):
(A) One or more surfactants selected from the group consisting of HLB 12.0 or higher nonionic surfactants and ionic surfactants,
(B) Behendimonium stearyl ethyl phosphate,
(C) Liquid polar oil,
(D) Fatty acid glyceryl,
(E) Water-soluble polymer and
(F) Water,
A method for stabilizing emulsification in the production of an oil-in-water emulsified composition comprising mixing.