JP2013112798A - Emulsion aerosol composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily-handleable emulsion aerosol composition allowing easy emulsification of an aqueous stock solution and a liquefied gas and causing no stickiness to give excellent sense of use.SOLUTION: In the emulsion aerosol composition including the aqueous stock solution, which contains a surfactant and a powder, and the liquefied gas, the aqueous stock solution and the liquefied gas are emulsified with each other. The powder is a mixture powder consisting of a high specific surface area powder with a specific surface area of 100-800 m/g and a low specific surface area powder with a specific surface area of 0.1-50 m/g.

Description

  The present invention relates to an emulsified aerosol composition. More specifically, the present invention relates to an emulsified aerosol composition comprising an aqueous stock solution and a liquefied gas, wherein the aqueous stock solution and the liquefied gas can be easily emulsified, and is not sticky and excellent in feeling of use.

  Patent Document 1 discloses an aerosol composition which is composed of an aqueous stock solution containing a water-soluble polymer such as hydroxyethyl cellulose and a liquefied gas and emits a crackling sound when discharged. However, since the aqueous stock solution and the liquefied gas are emulsified by shaking the container after filling the aerosol container, the viscosity of the aqueous stock solution increases when the content of the water-soluble polymer is increased in order to increase the feel and sound that can be played. However, there is a problem that it takes time to emulsify. In addition, there is a problem that when discharged onto the skin, the stickiness is strong and the feeling of use is poor.

  Patent Document 2 discloses an aerosol that includes an aqueous stock solution containing an emulsifier, a liquefied gas, and a powder, and by using silica having a specific primary particle size as the powder, the aqueous stock solution and the liquefied gas can be easily emulsified. A composition is disclosed. However, since the powder particles are fine, there is a problem that they are easily scattered when preparing the stock solution and are difficult to handle. Moreover, although this aerosol composition is easily emulsified at the time of manufacture, there is a problem that it is difficult to re-emulsify once the emulsification is broken. Further, this silica is produced by a dry method, and when dispersed in an aqueous stock solution, there is a problem that the pH becomes acidic and the metal container is corroded.

Japanese Patent No. 4173034 JP 2011-178865 A

  The present invention has been made in view of the above problems, and provides an emulsified aerosol composition that is easy to emulsify an aqueous stock solution and a liquefied gas, is easy to handle, and has no stickiness and excellent usability. With the goal.

An emulsified aerosol composition containing an aqueous stock solution containing a surfactant and a powder and a liquefied gas, wherein the aqueous stock solution and the liquefied gas are emulsified, wherein the powder has a specific surface area of 100 to 800 m ² / g. The present invention relates to an emulsified aerosol composition which is a mixed powder comprising a high specific surface area powder and a low specific surface area powder having a specific surface area of 0.1 to 50 m ² / g.

  It is preferable that content of the said mixed powder is 0.1-10 mass% in aqueous | water-based stock solution.

  The high specific surface area powder is preferably hydrophilic.

  The volume ratio of the high specific surface area powder and the low specific surface area powder in the mixed powder is preferably 90/10 to 30/70.

  The mass ratio of the aqueous stock solution to the liquefied gas is preferably 50/50 to 5/95.

  According to the present invention, an emulsified aerosol composition that facilitates emulsification of an aqueous stock solution and a liquefied gas and is easy to manufacture is provided by dispersing a mixed powder, which is a combination of powders having a specific surface area, in the aqueous stock solution. be able to.

  In addition, since the aerosol composition of the present invention has excellent emulsification stability, it returns to its original emulsified state (re-emulsification) by simply shaking the container when the consumer uses it, and the effect of the discharged product as designed is achieved. Can be provided to consumers.

  In addition, since the liquefied gas can be held for a long time in the discharge, an aerosol composition that freezes the discharge, an aerosol composition that produces a tactile feel and sound, and an aerosol that forms soap bubbles when discharged into the space A composition can be provided. At this time, the content of a thickener such as a water-soluble polymer can be reduced or not contained, so that the emulsification type aerosol composition is excellent in usability by eliminating stickiness after being applied to the skin. It can be a thing.

The emulsified aerosol composition of the present invention is an emulsified aerosol composition comprising an aqueous stock solution containing a surfactant and a powder and a liquefied gas, wherein the aqueous stock solution and the liquefied gas are emulsified, wherein the powder is surface area and wherein the high specific surface area powder and the specific surface area is 100~800m ² / g is mixed powder composed of a low specific surface area powder is 0.1 to 50 m ² / g.

  The surfactant is used for the purpose of emulsifying the aqueous stock solution and the liquefied gas.

  Examples of the surfactant include polyoxyethylene fatty acid esters such as POE monolaurate, POE monostearate and POE monooleate, polyoxyethylene such as POE sorbitan monolaurate, POE sorbitan monostearate and POE sorbitan monooleate. Polyoxyethylene glyceryl fatty acid ester such as ethylene sorbitan fatty acid ester, POE glyceryl monostearate, POE glyceryl monooleate, polyoxyethylene sorbite fatty acid ester such as POE sorbite monolaurate, POE sorbite tetrastearate, POE sorbite tetraoleate , POE cetyl ether, POE stearyl ether, POE oleyl ether, POE lauryl ether, POE behenyl ether Polyoxyethylene alkyl ethers such as POE octyldodecyl ether, POE isocetyl ether and POE isostearyl ether, polyoxyethylene polyoxypropylene alkyl ethers such as POE · POP cetyl ether and POE · POP decyl tetradecyl ether, decaglyceryl mono Polyglycerin fatty acid esters such as laurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl dioleate, hexaglyceryl monolaurate, hexaglyceryl monostearate, hexaglyceryl monooleate , Nonionic surfactants such as polyoxyethylene hydrogenated castor oil, and mixtures thereof, behentrimonium methosulfate, etc. Anionic surfactants such as cationic surfactant, fatty acid soap, alkyl sulfate, polyoxyethylene alkyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl ether phosphate, polyoxyethylene methylpolysiloxane Copolymers, silicone surfactants such as polyoxypropylene / methylpolysiloxane copolymer, poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymer, surfactin sodium, cyclodextrin, hydrogenated enzyme soybean lecithin Natural surfactants such as N-coconut oil fatty acid acyl-L-glutamic acid triethanolamine, N-coconut oil fatty acid acyl-L-glutamic acid potassium, N-coconut oil fatty acid acyl-sodium L-glutamate, N-lauroyl- L-glutami Triethanolamine acid, potassium N-lauroyl-L-glutamate, sodium N-lauroyl-L-glutamate, potassium N-myristoyl-L-glutamate, sodium N-myristoyl-L-glutamate and sodium N-stearoyl-L-glutamate N-acyl glutamate such as N-acyl glutamic acid, N-coconut oil fatty acid acyl-L-glutamic acid, N-lauroyl-L-glutamic acid, N-stearoyl-L-glutamic acid and the like, N-coconut oil fatty acid acylglycine potassium, Amino acid surfactants such as N-acylglycine salts such as N-coconut oil fatty acid acylglycine sodium and N-acylalanine salts such as N-coconut oil fatty acid acyl-DL-alanine triethanolamine, and the like.

  The content of the surfactant is preferably 0.05 to 10% by mass, more preferably 0.1 to 5% by mass in the aqueous stock solution. When the content of the surfactant is less than 0.05% by mass, the aqueous stock solution and the liquefied gas tend to be difficult to emulsify, and when the content is more than 10% by mass, the surfactant tends to remain on the skin, There is a tendency for the feeling of use to deteriorate, such as stickiness.

The powder makes it easy to emulsify the aqueous stock solution and the liquefied gas in the aerosol container to facilitate production (initial emulsification). Even if the powder settles on the bottom of the container, it is easily dispersed in the aerosol composition by shaking lightly. (Redispersibility), Emulsification stability is increased to make it easier for consumers to use (Reemulsification), liquefied gas is held in the discharge for a long time, and it is easy to freeze. The powder in the present invention has a specific surface area of 100 to 800 m ² / g. It is a mixed powder comprising a powder and a low specific surface area powder having a specific surface area of 0.1 to 50 m ² / g. In addition, let the specific surface area in this invention be a specific surface area measured by BET method using nitrogen.

  The high specific surface area powder facilitates easy emulsification of the aqueous stock solution and liquefied gas in a short time during production, that is, facilitates initial emulsification, and is dispersed in the aqueous stock solution together with the low specific surface area powder described later. It is used for the purpose of enhancing the performance of the ejected matter, such as imparting viscosity, making it easy to freeze the ejected material, strengthening the feel and sound of crackling and foaming, forming bubbles with large bubbles.

The specific surface area of the high specific surface area powder is 100 to 800 m ² / g, and preferably 150 to 7500 m ² / g. When the specific surface area is smaller than 100 m ² / g or larger than 800 m ² / g, the above-mentioned effect tends to be hardly obtained. Moreover, it is preferable that an average particle diameter is 1-20 micrometers, and it is preferable that a bulk density is 0.07-0.3 g / ml.

  Examples of the high specific surface area powder include silica, alumina, zeolite, and the like. Particularly, the above-mentioned effect is easily obtained with a high thickening effect when dispersed in an aqueous stock solution. However, since there is almost no fluctuation in pH and the metal container is not corroded, it is preferable to use hydrophilic silica produced by a wet method.

  The content of the high specific surface area powder is preferably 0.05 to 7% by mass, more preferably 0.1 to 5% by mass in the aqueous stock solution. When the content of the high specific surface area powder is less than 0.05% by mass, the above-mentioned effect tends to be difficult to obtain. When the content is more than 7% by mass, the powder tends to settle at the bottom of the container and the concentration gradient becomes high. , It tends to be difficult to discharge with a uniform composition.

The low specific surface area powder is used for the purpose of facilitating re-emulsification by stabilizing the emulsified state of the aqueous stock solution and the liquefied gas, and improving the redispersibility of the powder. The specific surface area of the low specific surface area powder is 0.1 to 50 m ² / g, preferably 0.5 to 30 m ² / g. When the specific surface area is smaller than 0.1 m ² / g or larger than 50 m ² / g, the above-mentioned effect tends to be hardly obtained. Moreover, it is preferable that an average particle diameter is 1-20 micrometers, and it is preferable that a bulk density is 0.1-0.6 g / ml.

  Examples of the low specific surface area powder include talc and nylon powder. In particular, it is preferable to use talc from the viewpoint that initial emulsification during the production of the aerosol composition can be facilitated.

  The content of the low specific surface area powder is preferably 0.05 to 7% by mass, more preferably 0.1 to 5% by mass in the aqueous stock solution. When the content of the low specific surface area powder is less than 0.05% by mass, the above-mentioned effect tends to be difficult to obtain. When the content is more than 7% by mass, the powder tends to settle at the bottom of the container and the concentration gradient becomes high. , It tends to be difficult to discharge with a uniform composition.

  The content of the mixed powder is preferably 0.1 to 10% by mass, and more preferably 0.2 to 7% by mass in the aqueous stock solution. When the content of the mixed powder is less than 0.1% by mass, the above-described effect tends to be difficult to obtain. When the content is more than 10% by mass, the mixture tends to settle at the bottom of the container, and the concentration gradient becomes high and uniform. It tends to be difficult to discharge with a simple composition.

  The volume ratio of the high specific surface area powder to the low specific surface area powder (high specific surface area powder volume / low specific surface area powder volume) in the mixed powder is preferably 90/10 to 30/70, more preferably 80 / It is preferable that it is 20-35 / 65. From this volume ratio range, when the volume of the high specific surface area powder is large, it tends to be difficult to re-emulsify, and the redispersibility of the settled powder tends to decrease. On the other hand, when the volume of the low specific surface area powder is large, the initial emulsification tends to be difficult.

  The aqueous stock solution may contain an active ingredient, alcohol, a water-soluble polymer, a pH adjuster, an oil, and the like depending on the performance and purpose of the product.

  The active ingredients are those that adhere to or volatilize the skin, etc., and are effective when released into the space. For example, 1-menthol, camphor, mint oil and other refreshing agents, crotamiton, d -Antipruritics such as camphor, anti-inflammatory analgesics such as methyl salicylate, indomethacin, piroxicam, felbinac, ketoprofen, oxyconazole, clotrimazole, sulconazole, bifonazole, miconazole, isconazole, econazole, thioconazole, butenafine, and their hydrochlorides Antifungal agents such as nitrates and acetates, astringents such as allantoin hydroxyaluminum, tannic acid, citric acid and lactic acid, anti-inflammatory agents such as allantoin, glycyrrhetinic acid, dipotassium glycyrrhizinate and azulene, dibu hydrochloride In, tetracaine hydrochloride, lidocaine, lidocaine, local anesthetics such as diphenhydramine, diphenhydramine hydrochloride, antihistamines such as chlorpheniramine maleate, ethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, collagen, xylitol, sorbitol , Moisturizers such as hyaluronic acid, sodium lactate, DL-pyrrolidone carboxylate, keratin, casein, lecithin, urea, ultraviolet light such as hexyl diethylaminohydroxybenzoyl benzoate, 2-ethylhexyl paramethoxycinnamate, ethylhexyltriazone, oxybenzone Absorbent, paraoxybenzoate ester, sodium benzoate, potassium sorbate, phenoxyethanol, benzalkonium chloride, benzoyl chloride Bactericides and disinfectants such as tonium, chlorhexidine chloride, photosensitizer, parachlormethcresol, amino acids such as glycine, alanine, leucine, aspartic acid, glutamic acid, arginine, vitamins such as calcium pantothenate, magnesium ascorbate phosphate, sodium ascorbate , N, N-diethyl-m-toluamide (diet), caprylic acid diethylamide, pest repellents such as herbal extract, green tea extract, persimmon tannin, deodorizing ingredients such as silver, and fragrances.

  The content of the active ingredient is preferably 0.01 to 20% by mass, and more preferably 0.1 to 10% by mass in the aqueous stock solution. When the content of the water-soluble active ingredient is less than 0.01% by mass, it is difficult to obtain the effect of the active ingredient, and when it is more than 20% by mass, emulsification may be inhibited.

  The alcohol is used for the purpose of adjusting the state of the solvent of the active ingredient that does not dissolve in water and the discharged material, and examples thereof include monohydric alcohols having 2 to 3 carbon atoms such as ethanol and isopropanol.

  The alcohol content is preferably 0.5 to 40% by mass, more preferably 1 to 30% by mass in the aqueous stock solution. When the content of the alcohol is less than 0.5% by mass, the effect of the alcohol is hardly obtained, and when the content is more than 40% by mass, the emulsification tends to be difficult.

  The water-soluble polymer is used for the purpose of increasing the viscosity of the aqueous stock solution, keeping the liquefied gas in the discharged product for a long time to make the aqueous stock solution freeze easily, and making the crackling feel and sound strong.

  Examples of the water-soluble polymer include cellulose-based polymers such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, carboxymethyl cellulose sodium, xanthan gum, carrageenan, gum arabic, tragacanth gum, cationized guar gum, guar gum, gellan gum, locust bean. Gums such as gums, dextran, sodium carboxymethyldextran, dextrin, pectin, starch, corn starch, wheat starch, sodium alginate, modified potato starch, hyaluronic acid, sodium hyaluronate, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, etc. can give.

  Since the aerosol composition of the present invention can impart viscosity to an aqueous stock solution by using a mixed powder in which a specific powder is combined, the aerosol composition freezes the discharged material, and the feel and sound that the discharged material flips Even in the case of producing an aerosol composition that produces water, the content of the water-soluble polymer can be 0.7% by mass or less, and further 0.5% by mass or less in the aqueous stock solution. Therefore, even if the discharged material is spread on the skin, there is no stickiness, and an aerosol composition that does not require wiping can be obtained.

  The pH adjuster is used for the purpose of adjusting the pH of the aqueous stock solution to reduce irritation to the skin and making the metal aerosol container difficult to corrode.

  Examples of the pH adjuster include triethanolamine (TEA), diethanolamine (DEA), monoethanolamine (MEA), diisopropanolamine (DIPA), 2-amino-2-methyl-1-propanol (AMP), Organic alkalis such as 2-amino-2-methyl-1,3-propanediol (AMPD), inorganic alkalis such as potassium hydroxide, sodium hydroxide, ammonium hydroxide, citric acid, sodium citrate, glycolic acid, lactic acid, Examples thereof include organic acids such as phosphoric acid and inorganic acids such as hydrochloric acid.

  When it contains the said pH adjuster, it is preferable to contain so that pH of a stock solution may be 5-9, Furthermore, 6-8. When the pH of the stock solution is lower than 5, the container tends to be corroded, and when the pH is higher than 9, irritation to the skin tends to become stronger.

  The oil is used for the purpose of improving the feeling of use, for example, adjusting the state of the discharged product, and giving moisture to the skin.

  Examples of the oils include oils such as meadow foam oil, olive oil, camellia oil, corn oil, castor oil, safflower oil, jojoba oil, coconut oil, fatty acids such as myristic acid, stearic acid, oleic acid, cetyl alcohol, oleyl alcohol , Higher alcohols such as isostearyl alcohol, isopropyl myristate, isopropyl palmitate, cetyl isooctanoate, methylpentanediol dineopentanoate, diethylpentanediol dineopentanoate, neopentyl glycol di-2-ethylhexanoate, neopentyl glycol dicaprate , Propylene glycol dilaurate, ethylene glycol distearate, propylene glycol monostearate, propylene glycol monooleate, ethyl stearate Ester oils such as glycol, glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / capric acid), isononyl isononanoate, isotridecyl isononanoate, diethoxyethyl succinate, diisostearyl malate, methyl polysiloxane, Cyclopentasiloxane, cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, methylcyclopolysiloxane, tetrahydrotetramethylcyclotetrasiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, methylhydro Silicone oil such as genpolysiloxane and methylphenylpolysiloxane, hydrocarbons such as liquid paraffin and isoparaffin, and Such as a mixture of et al., And the like.

  When the oil component is contained, the content in the aqueous stock solution is preferably 0.1 to 20% by mass, and more preferably 0.5 to 10% by mass. When the content of the oil is less than 0.1% by mass, the effect of the oil tends to be difficult to be obtained. When the content is more than 20% by mass, the drying property is deteriorated and the feeling of stickiness is increased. There is a tendency to decrease.

  The aqueous stock solution can be prepared by adding a surfactant and, if necessary, an active ingredient, a water-soluble polymer, and the like to water and mixing, and then adding and dispersing the powder therein.

  The water content is preferably 50 to 99.5% by mass, more preferably 60 to 99% by mass in the aqueous stock solution. When the water content is less than 50% by mass, it tends to be difficult to emulsify with the liquefied gas, and when it is more than 99.5% by mass, it becomes difficult to contain the necessary amount of surfactant or powder.

  Content of the said aqueous | water-based stock solution is 5-50 mass% in an aerosol composition, and it is preferable that it is 10-45 mass%. When the content of the aqueous stock solution is outside the above range, a desired discharge form tends to be difficult to obtain.

  The liquefied gas is a liquid having a vapor pressure in an aerosol container and is emulsified with an aqueous stock solution. Vaporizes when discharged from an aerosol container, cools the discharge and freezes, or foams and breaks the discharge to give it a crisp feel. To form a desired state.

  Examples of the liquefied gas include propane, normal butane, isobutane, and mixtures thereof such as liquefied petroleum gas, dimethyl ether, hydrofluoroolefin, and mixtures thereof.

  The content of the liquefied gas is preferably 50 to 95% by mass in the aerosol composition, and more preferably 55 to 90% by mass. When the content of the liquefied gas is outside the above range, it is difficult to obtain a desired discharge form. In the present invention, since the aqueous stock solution is made viscous by combining a specific powder, it is easier to emulsify with the liquefied gas as compared with the conventional thickening by the water-soluble polymer, and particularly the liquefied gas is 70% by mass or more. Even if contained, it can be easily emulsified.

  The emulsified aerosol composition of the present invention is filled with an aqueous stock solution in a pressure-resistant container and filled with a liquefied gas under a cup. After that, an aerosol valve is firmly attached to the pressure-resistant container and sealed, and the aerosol container is shaken to form an aqueous stock solution. It can be prepared by emulsifying the liquefied gas. Since the emulsified aerosol composition of the present invention contains a specific powder in combination, the shaking time can be shortened in the shaking step, and the production efficiency is increased. Alternatively, after filling the aqueous stock solution, the aerosol valve may be fixed to the pressure vessel and the liquefied gas may be filled from the aerosol valve. In this case, since the emulsification proceeds by mixing with the aqueous stock solution and the aerosol container by filling the liquefied gas, the shaking step can be made easier or unnecessary.

  Since the emulsified aerosol composition of the present invention is excellent in emulsion stability, it can return to the emulsified state immediately after manufacture by simply shaking it when used by the consumer, and the effect of the discharge product as designed can be obtained. , Burn products, anti-inflammatory analgesics, antipruritics, skin protectants, antifungal agents, antiperspirants, astringents, anti-hot flashes, etc., human products, fragrances, deodorants, pollen removers, etc. It can be suitably used for a space product. Furthermore, the emulsified aerosol composition of the present invention reduces the content of thickeners such as water-soluble polymers, or produces an aerosol composition that freezes the discharged material, or a crackling feel and sound. Since it can be set as the resulting aerosol composition, the effect of the present invention can be further exhibited by using it for a human body product that requires excellent usability.

  EXAMPLES Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to these.

  The evaluation method is shown below.

(1) Initial emulsification A metal pressure-resistant container was filled with an aqueous stock solution, and an aerosol valve was fixed. Subsequently, the liquefied gas was filled from the aerosol valve | bulb which is not equipped with the tube, and the aerosol product from which aqueous | water-based stock solution and liquefied gas isolate | separated was manufactured. And this aerosol product was held by hand, swung up and down with a width of 30 cm, and the number of times until emulsification was counted by one reciprocation was counted. In addition, the aerosol product manufactured using an aqueous stock solution in which the powder is replaced with purified water is used as a standard product (standard product 1 to 4), and the number of times until the standard product is emulsified in the same manner is counted. The number of examples and comparative examples were compared.
○: 40% or less of standard product △: 41-60% of standard product
×: 61% or more of standard products

(2) Re-emulsification The aerosol product subjected to the initial emulsification test was left in a thermostatic chamber at 45 ° C for 3 months, and this aerosol product was held in the hand and shaken up and down with a width of 30 cm, emulsifying one round trip. I counted the number of times until.
○: Emulsified when shaken 3 times.
Δ: Emulsified when shaken 4 to 10 times.
X: It did not emulsify even if it shakes 10 times.

(3) State of discharged material From the evaluation tests shown in (3-1) to (3-3), an evaluation test corresponding to the characteristics of each aerosol composition was performed.

(3-1) State of discharged material <Freezing type>
From the aerosol product subjected to the initial emulsification test, the state of the discharged product when 0.5 g of the aerosol composition was discharged into the handkerchief was evaluated.
○: Almost all of the discharged material was frozen.
X: No foaming and freezing.

(3-2) State of discharged material <Floating foam type>
From the aerosol product subjected to the initial emulsification test, 0.5 g of the aerosol composition was discharged onto the palm of the hand and evaluated on the arm.
○: A feel and sound of flipping and foaming were obtained.
X: Although it was a bubble, there was no touch that could be played with a crackle, and no sound was emitted.

(3-3) State of discharged material <Soap bubble type>
From the aerosol product subjected to the initial emulsification test, 0.5 g of the aerosol composition was discharged into the space, and the state in the space was evaluated.
○: Soap bubble-shaped bubbles floating in the space were obtained.
X: It became a lump of foam, and fell immediately without floating in the space.

(4) Feeling of use From the evaluation tests shown in (4-1) to (4-3), an evaluation test corresponding to the characteristics of each aerosol composition was performed.

(4-1) Usability <Freezing type>
From the aerosol product subjected to the initial emulsification test, 0.5 g of the aerosol composition was discharged onto a handkerchief, and the state when the handkerchief was pressed against the neck was evaluated.
○: There was no stickiness.
X: Stickiness was strong, and there was a residual feeling when not wiped off.

(4-2) Usability <Bubble type>
From the aerosol product subjected to the initial emulsification test, 0.5 g of the aerosol composition was discharged onto the palm of the hand and evaluated on the arm.
○: There was no stickiness.
X: Stickiness was strong, and there was a residual feeling when not wiped off.

(4-3) Usability <Soap bubble type>
From the aerosol product subjected to the initial emulsification test, the aerosol composition was discharged into the space, and the portion where the discharged material dropped and adhered to the floor surface was touched and evaluated.
○: There was no stickiness.
X: Stickiness was strong, and there was a residual feeling when not wiped off.

(5) Container stability The aerosol product subjected to the initial emulsification test was left in a thermostatic chamber at 45 ° C. for 3 months, and the presence or absence of corrosion of the metal pressure resistant container was evaluated.
○: There was no abnormality.
X: The inner surface (metal surface) of the pressure vessel had rust and was eroded.

(6) Redispersibility A transparent polyethylene terephthalate (PET) pressure vessel (full volume 100 ml) was filled with an aqueous stock solution, and an aerosol valve was fixed. Next, liquefied gas was filled from an aerosol valve not equipped with a tube to emulsify the aqueous stock solution and liquefied gas. The obtained aerosol product is allowed to stand in a thermostatic chamber at 45 ° C. for 3 months to settle the powder, and the powder is redispersed when the aerosol product is held in hand and shaken up and down three times with a width of 30 cm. Sex was evaluated.
○: The powder was uniformly dispersed.
X: There was a lump of powder and it was not uniformly dispersed.

Examples 1 to 5 and Comparative Examples 1 to 6 <Freezing type>
The above-described evaluation test was performed using an aqueous stock solution and a liquefied gas (liquefied petroleum gas (* 1)) shown in Table 1. The filling amount into the metal pressure vessel (the tin pressure vessel (full injection amount: 510 ml)) was 50 g (25 mass%) of the aqueous stock solution and 150 g (75 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made from PET (full injection amount 100 ml) was 10 g (25 mass%) of the aqueous stock solution and 30 g (75 mass%) of the liquefied gas. The evaluation results are shown in Table 2.

＊１：ノルマルブタンとイソブタンの混合物、２０℃での蒸気圧：０．１５ＭＰａ
＊２：ＮＩＫＫＯＬ ＰＢＣ−４４（商品名）、日光ケミカルズ株式会社製
＊３：ＲＨＯＤＯＰＯＬ ２３（商品名）、ローディア日華株式会社製
＊４：クラウンタルクＰＰ（商品名）、松村産業株式会社製（比表面積：１．５ｍ²／ｇ、嵩密度：０．３４ｇ／ｍｌ、平均粒子径：１０μｍ）
＊５：ＴＲ−１（商品名）、東レ株式会社製（比表面積：３．８ｍ²／ｇ、嵩密度：０．２５ｇ／ｍｌ、平均粒子径：１４μｍ）
＊６：ＣＡＲＰＬＥＸ ＃６７（商品名）、エボニックデグサ社製（比表面積：３８０ｍ²／ｇ、嵩密度：０．１４ｇ／ｍｌ、平均粒子径：１２μｍ）
＊７：ＣＡＲＰＬＥＸ ＃８０（商品名）、エボニックデグサ社製（比表面積：２００ｍ²／ｇ、嵩密度：０．１５ｇ／ｍｌ、平均粒子径：１５μｍ）
＊８：ＡＥＲＯＳＩＬ＃２００（商品名）、日本アエロジル株式会社製（比表面積：２００ｍ²／ｇ、嵩密度：０．０５ｇ／ｍｌ、平均粒子径：０．０１２μｍ）
＊９：サイリシア５３０（商品名）、富士シリシア化学株式会社製（比表面積：５００ｍ²／ｇ、嵩密度：０．１４ｇ／ｍｌ、平均粒子径：２．７μｍ）
＊１０：サイリシア７１０（商品名）、富士シリシア化学株式会社製（比表面積：７００ｍ²／ｇ、嵩密度：０．２５ｇ／ｍｌ、平均粒子径：２．８μｍ）
＊１１：テクポリマーＭＢＰ−８（商品名）、テクノポリマー株式会社（比表面積：８５ｍ²／ｇ、嵩密度：０．１４ｇ／ｍｌ、平均粒子径８μｍ：）

* 1: A mixture of normal butane and isobutane, vapor pressure at 20 ° C .: 0.15 MPa
* 2: NIKKOL PBC-44 (trade name), manufactured by Nikko Chemicals Co., Ltd. * 3: RHODOPOL 23 (trade name), manufactured by Rhodia Nikka Co., Ltd. * 4: Crown talc PP (trade name), manufactured by Matsumura Sangyo Co., Ltd. ( (Specific surface area: 1.5 m ² / g, bulk density: 0.34 g / ml, average particle size: 10 μm)
* 5: TR-1 (trade name), manufactured by Toray Industries, Inc. (specific surface area: 3.8 m ² / g, bulk density: 0.25 g / ml, average particle size: 14 μm)
* 6: CARPLEX # 67 (trade name), manufactured by Evonik Degussa (specific surface area: 380 m ² / g, bulk density: 0.14 g / ml, average particle size: 12 μm)
* 7: CARPLEX # 80 (trade name), manufactured by Evonik Degussa (specific surface area: 200 m ² / g, bulk density: 0.15 g / ml, average particle size: 15 μm)
* 8: AEROSIL # 200 (trade name), manufactured by Nippon Aerosil Co., Ltd. (specific surface area: 200 m ² / g, bulk density: 0.05 g / ml, average particle size: 0.012 μm)
* 9: Silicia 530 (trade name), manufactured by Fuji Silysia Chemical Ltd. (specific surface area: 500 m ² / g, bulk density: 0.14 g / ml, average particle size: 2.7 μm)
* 10: Silicia 710 (trade name), manufactured by Fuji Silysia Chemical Ltd. (specific surface area: 700 m ² / g, bulk density: 0.25 g / ml, average particle size: 2.8 μm)
* 11: Techpolymer MBP-8 (trade name), Technopolymer Co., Ltd. (specific surface area: 85 m ² / g, bulk density: 0.14 g / ml, average particle size 8 μm :)

Examples 6 to 7 and Comparative Examples 6 to 10 <Floating foam type>
The above-described evaluation test was performed using an aqueous stock solution and a liquefied gas (liquefied petroleum gas (* 1)) shown in Table 3. The filling amount into the metal pressure vessel (the tin pressure vessel (full amount 510 ml)) was 60 g (30 mass%) of the aqueous stock solution and 140 g (70 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 12 g (30% by mass) of the aqueous stock solution and 28 g (70% by mass) of the liquefied gas. The evaluation results are shown in Table 4.

＊１２：アクアジェルＩ−２（商品名）、新田ゼラチン株式会社製

* 12: Aquagel I-2 (trade name), manufactured by Nitta Gelatin Co., Ltd.

Examples 8 to 9 and Comparative Examples 11 to 14 <Floating foam type>
The above-described evaluation test was performed using an aqueous stock solution and a liquefied gas (liquefied petroleum gas (* 1)) shown in Table 5. The filling amount into the metal pressure vessel (the tin pressure vessel (full amount 510 ml)) was 80 g (40 mass%) of the aqueous stock solution and 120 g (60 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 16 g (40 mass%) of the aqueous stock solution and 24 g (60 mass%) of the liquefied gas. The evaluation results are shown in Table 6.

＊１３：ＨＥＣ ＳＥ−８５０（商品名）、株式会社ダイセル製

* 13: HEC SE-850 (trade name), manufactured by Daicel Corporation

Examples 10 to 11 and Comparative Examples 15 to 18 <Soap bubble-shaped foam type>
The above-described evaluation test was performed using an aqueous stock solution and a liquefied gas (liquefied petroleum gas (* 1)) shown in Table 7. The filling amount into the metal pressure vessel (the tin pressure vessel (full amount 510 ml)) was 60 g (30 mass%) of the aqueous stock solution and 140 g (70 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 12 g (30% by mass) of the aqueous stock solution and 28 g (70% by mass) of the liquefied gas. The evaluation results are shown in Table 8.

＊１４：ＢＣ−２０ＴＸ（商品名）、日光ケミカルズ株式会社製
＊１５：アミソフト ＣＳ−１１（商品名）、味の素株式会社製
＊１６：ＳＨ３７７１Ｍ（商品名）、東レ・ダウコーニング株式会社製
＊１７：セロゲンＰ−８１５Ｃ（商品名）、第一工業製薬株式会社製

* 14: BC-20TX (trade name), manufactured by Nikko Chemicals Co., Ltd. * 15: Amisoft CS-11 (trade name), manufactured by Ajinomoto Co., Ltd. * 16: SH3771M (trade name), manufactured by Toray Dow Corning Co., Ltd. * 17 : Serogen P-815C (trade name), manufactured by Daiichi Kogyo Seiyaku Co., Ltd.

Product example 1 Astringent lotion <Floating foam type>
The evaluation test was performed using the following aqueous stock solution and liquefied gas (liquefied petroleum gas (* 1)). The filling amount into the metal pressure vessel (aluminum pressure vessel (full injection amount: 200 ml)) was 40 g (40 mass%) of the aqueous stock solution and 60 g (60 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 16 g (40 mass%) of the aqueous stock solution and 24 g (60 mass%) of the liquefied gas. Table 9 shows the evaluation results.

POE (20) POP (8) Cetyl ether (* 2) 1.0
Hydroxyethyl cellulose (* 13) 0.5
L-Menthol 0.5
Ethanol 20.0
Purified water 76.5
Talc (* 4) 1.0
Silica (* 6) 0.5
Total 100.0 (mass%)

Product example 2 Astringent lotion <Freeze type>
The evaluation test was performed using the following aqueous stock solution and liquefied gas (liquefied petroleum gas (* 1)). The filling amount into the metal pressure vessel (aluminum pressure vessel (full amount: 200 ml)) was 25 g (25 mass%) of the aqueous stock solution and 75 g (75 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made from PET (full injection amount 100 ml) was 10 g (25 mass%) of the aqueous stock solution and 30 g (75 mass%) of the liquefied gas. Table 9 shows the evaluation results.

POE (20) POP (8) Cetyl ether (* 2) 0.5
L-Menthol 1.0
Purified water 97.0
Nylon powder (* 5) 1.0
Silica (* 6) 0.5
Total 100.0 (mass%)

Product example 3 Itching prevention <Freezing type>
The evaluation test was performed using the following aqueous stock solution and liquefied gas (liquefied petroleum gas (* 1)). The filling amount into the metal pressure vessel (aluminum pressure vessel (full amount: 200 ml)) was 30 g (30% by mass) of the aqueous stock solution and 70 g (70% by mass) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 12 g (30% by mass) of the aqueous stock solution and 28 g (70% by mass) of the liquefied gas. Table 9 shows the evaluation results.

POE (20) POP (8) Cetyl ether (* 2) 1.0
Crotamiton 3.0
Diphenhydramine 0.5
L-Menthol 0.5
Purified water 93.5
Talc (* 4) 1.0
Silica (* 7) 0.5
Total 100.0 (mass%)

Product Example 4 Pest repellent <Floating foam type>
The evaluation test was performed using the following aqueous stock solution and liquefied gas (liquefied gas (* 18)). The filling amount into the metal pressure vessel (aluminum pressure vessel (full amount: 200 ml)) was 30 g (30% by mass) of the aqueous stock solution and 70 g (70% by mass) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 12 g (30% by mass) of the aqueous stock solution and 28 g (70% by mass) of the liquefied gas. Table 9 shows the evaluation results.

POE (20) POP (8) Cetyl ether (* 2) 0.5
Hydroxyethyl cellulose (* 13) 0.2
N, N-dimethyltoluamide 5.0
Ethanol 10.0
Purified water 83.3
Talc (* 4) 0.5
Silica (* 6) 0.5
Total 100.0 (mass%)
* 18: Liquefied petroleum gas (* 1) / dimethyl ether = 80/20 (mass ratio)

Product example 5 Sunscreen <Floating foam type>
The evaluation test was performed using the following aqueous stock solution and liquefied gas (liquefied petroleum gas (* 1)). The filling amount into the metal pressure vessel (aluminum pressure vessel (full injection amount: 200 ml)) was 40 g (40 mass%) of the aqueous stock solution and 60 g (60 mass%) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 16 g (40 mass%) of the aqueous stock solution and 24 g (60 mass%) of the liquefied gas. Table 9 shows the evaluation results.

POE (20) sorbitan monolaurate (* 19) 1.0
Hydroxyethyl cellulose (* 13) 0.3
Ethyl hexyl methoxycinnamate (* 20) 8.0
l-Menthol 0.5
Methylparaben 0.1
Decamethylcyclopentasiloxane (* 21) 3.0
Ethanol 20.0
Purified water 61.1
Titanium oxide (* 22) 1.0
Zinc oxide (* 23) 3.0
Talc (* 4) 1.0
Silica (* 7) 1.0
Total 100.0 (mass%)
* 19: NIKKOL TL-10 (trade name), manufactured by Nikko Chemicals Co., Ltd. * 20: Pulsol MCX (trade name), DSM Nutrition Japan Co., Ltd. * 21: SH-245 (trade name), Toray Dow Corning Silicone * 22: MT-100AQ (trade name), manufactured by Teika Co., Ltd. * 23: MZ-500HP (trade name), manufactured by Teika Corporation

Product Example 6 Deodorant <Soap bubble type>
The evaluation test was performed using the following aqueous stock solution and liquefied gas (liquefied petroleum gas (* 1)). The filling amount into the metal pressure vessel (aluminum pressure vessel (full amount: 200 ml)) was 30 g (30% by mass) of the aqueous stock solution and 70 g (70% by mass) of the liquefied gas. Moreover, the filling amount to the pressure-resistant container made of PET (full injection amount 100 ml) was 12 g (30% by mass) of the aqueous stock solution and 28 g (70% by mass) of the liquefied gas. Table 9 shows the evaluation results.

Polyoxyethylene alkyl ether (* 14) 2.0
N-coconut oil fatty acid acyl-sodium L-glutamate * 15) 0.5
Polyoxyethylene / methylpolysiloxane copolymer (* 16) 2.0
Sodium carboxymethylcellulose (* 17) 0.1
Glycerin 10.0
Ethanol 20.0
Purified water 63.8
Fragrance 0.1
Green tea extract 0.5
Talc (* 4) 0.5
Silica (* 10) 0.5
Total 100.0 (mass%)

Claims (5)

Contains an aqueous stock solution containing surfactant and powder and liquefied gas,
An emulsified aerosol composition in which an aqueous stock solution and a liquefied gas are emulsified,
The powder, the specific surface area is a mixed powder high specific surface area powder and the specific surface area is 100~800m ² / g is made of a low specific surface area powder is 0.1 to 50 m ² / g emulsifying aerosol composition. The emulsified aerosol composition according to claim 1, wherein the content of the mixed powder is 0.1 to 10% by mass in the aqueous stock solution. The emulsified aerosol composition according to claim 1 or 2, wherein the high specific surface area powder is hydrophilic. The emulsion aerosol composition according to any one of claims 1 to 3, wherein a volume ratio of the high specific surface area powder and the low specific surface area powder in the mixed powder is 90/10 to 30/70. The emulsification type aerosol composition given in any 1 paragraph of Claims 1-4 whose mass ratio of said aqueous undiluted solution and liquefied gas is 50 / 50-5 / 95.