KR102099493B1 - Aerosol-type sunscreen cosmetic - Google Patents

Abstract

The present invention has a high UV protection effect by stably blending a poorly soluble UV absorber having a high UV protection ability in coexistence with a liquefied gas, and can be sprayed evenly on skin or hair, and has no stickiness and transparency. The object is to provide a high aerosol-type sunscreen material.
In order to solve the above problems, the aerosol-type sunscreen cosmetic of the present invention comprises the following components (a) to (c): (a) 1 to 3% by mass of bisethylhexyloxyphenolmethoxyphenyltriazine, (b) propylene As an aerosol containing liquefied gas as a propellant and propellant as a water-in-oil emulsion containing 5 to 50% by mass of a diester of glycol and a fatty acid having 8 to 10 carbon atoms, and (c) 5 to 15% by mass of ethylhexyl methoxy citrate, It is characterized in that the mass ratio of the component (a) to the components (b) and (c) in the water-in-oil type emulsion is in the range of 1:10 to 1:20.

Description

Aerosol-type sunscreen cosmetic

The present invention relates to an aerosol-type sunscreen cosmetic using bisethylhexyloxyphenol methoxyphenyltriazine and a water-in-oil emulsion containing a specific ester emulsion as a stock solution, and using liquefied gas as a propellant, and more particularly, excellent stability. Since it does not have clogging, it is possible to spray evenly on the skin or hair, and it relates to an aerosol-type sunscreen cosmetic that is transparent and has no stickiness.

The sunscreen cosmetic is intended to protect the skin from the adverse effects of ultraviolet rays by blocking the ultraviolet rays in the sun's rays, and by combining metal oxides such as zinc oxide and titanium oxide or organic ultraviolet absorbers, it has a high UV protection effect. Cosmetics have been developed. However, when a large amount of metal oxide is used, there is a problem such as a greasy feeling of powder when used, or a white finish appears unnatural, and in addition, it is poorly soluble (non-polar to water) in organic UV absorbers having high UV protection. Since there are many oil-insoluble substances, stability problems may occur, and various studies have been conducted (for example, see Patent Documents 1 and 2).

On the other hand, an aerosol-type cosmetic is easy to apply to a wide range of skin or hair, and in particular, in the case of a spray, it is very usable because it is possible to apply the finger evenly to a portion that is difficult to reach without wetting the finger with the cosmetic. For this reason, it is also applied as a sunscreen cosmetic (for example, see patent documents 3 and 4).

Japanese Patent Publication No. 2010-100553 Japanese Patent Publication No. 2011-236201 Japanese Patent Publication No. 2008-543939 Japanese Patent Publication No. 2010-270060

Since the aerosol-type cosmetic is a pressurized special environment that coexists with liquefied gas or compressed gas as a propellant, powder or poorly soluble ultraviolet absorbents such as metal oxides having UV protection effect cause aggregation or crystallization in the aerosol container, resulting in ultraviolet light. The protective effect is reduced, especially in the case of a spray, there is a problem that the clogging occurs and the sprayability is poor or the spray is uneven. Also, finer spray particles can be formed by using liquefied gas. Therefore, the subject of the present invention is a high degree of UV protection effect by stably blending a poorly soluble UV absorber having a high UV protection ability in the presence of liquefied gas, it is possible to spray uniformly on the skin or hair, and stickiness It is to provide an aerosol-type sunscreen material having high transparency.

In view of these circumstances, the present inventors have studied in earnest, and as a result, combines a poorly soluble ultraviolet absorber, bisethylhexyloxyphenol methoxyphenyltriazine, with a water-in-oil emulsion containing a specific ester oil and liquefied gas, and has a high UV protection effect. , It is possible to spray the skin or hair evenly, and has completed the material of aerosol type sunscreen with high transparency without stickiness.

That is, the present invention provides the following.

[1] The following components (a) to (c);

(a) Bisethylhexyloxyphenolmethoxyphenyltriazine 1 to 3% by mass

(b) 5 to 50% by mass of diester of propylene glycol and fatty acids having 8 to 10 carbon atoms.

(c) 5 to 15% by mass of ethyl hexyl methoxy citrate

An aerosol containing a liquefied gas as a propellant and a stock solution that is a water-in-oil type emulsion, wherein the mass ratio of components (a) to (b) and (c) in the water-in-oil type emulsion is from 1:10 to 1:20. Aerosol-type sunscreen cosmetic, characterized in that the range.

[2] The aerosol-type sunscreen cosmetic according to [1], wherein the water-in-oil type emulsion further contains a component (d) silicone oil.

[3] The aerosol-type sunscreen cosmetic according to [1] or [2], wherein the filling ratio of the water-in-oil type emulsion and liquefied gas in the aerosol-type sunscreen cosmetic is 15 to 40% by mass of the water-in-oil type emulsion and 60 to 85% of the liquefied gas. .

The aerosol-type sunscreen material of the present invention is capable of stably blending poorly water-soluble UV absorbers, and thus has a high UV-protection effect, a non-sticky, transparent finish, and good sprayability over a long period of time. It is possible to spray the hair evenly, which has the advantage of excellent usability.

The configuration of the present invention will be described in detail below. In addition, when the numerical range is represented by "X to Y" in this specification, the range includes values X and Y at both ends.

The aerosol-type sunscreen cosmetic of the present invention is one in which a stock solution, which is a water-in-oil emulsion containing components (a) to (c), and a liquefied gas, which is a propellant, are filled in a container having an internal pressure valve. As an aerosol, it can be adjusted in the form of a spray (fog), foam (bubble), etc. depending on the purpose of use, and sprayed or used by hand. In the present invention, the form of the spray is preferred from the viewpoint of uniform spraying on the skin or hair. For this reason, the filling ratio of the water-in-oil emulsion and the liquefied gas in the aerosol is preferably 15 to 40% by mass of the water-in-oil emulsion (hereinafter abbreviated simply as "%"), and 60 to 85% of the liquefied gas, and the water-in-oil emulsion 20 to 30%. , 70-80% of liquefied gas is more preferable (the sum of water-in-oil emulsion and liquefied gas is 100%). This is because, within this range, crystal precipitation is not observed even when the time has elapsed, and is excellent in stability when used as an aerosol-type sunscreen cosmetic and can be sprayed uniformly.

(Water-in-oil emulsion: undiluted solution)

The component (a) used in the present invention is an ultraviolet absorbent that is poorly soluble in water and non-polar oils, and is 2,4-bis-[{4- (2-ethylhexyloxy) -2-hydroxy} -phenyl] as a component. -6- (4-methoxyphenyl) -1,3,5-triazine. The INCI name (International Nomenclature Cosmetic Ingredient labeling Name) is bisethylhexyloxyphenolmethoxyphenyltriazine, and commercially available products include Tinosorb S (manufactured by BASF).

The content of component (a) in the water-in-oil emulsion of the present invention is 1 to 3%. When the content is less than 1%, the UV protection effect is lowered, and when it exceeds 3%, the spreading becomes heavy when spreading by hand, and the texture is inferior.

The component (b) used in the present invention is a diester of propylene glycol and a fatty acid having 8 to 10 carbon atoms, and is an ester oil that is liquid at 25 ° C. Specifically, propylene glycol dicaprate, propylene glycol dicaprylate, and di (caprylic / capric acid) propylene glycol can be used, and one or two or more of these can be used.

The content of the component (b) in the water-in-oil emulsion of the present invention is 5 to 50%, more preferably 15 to 40%. If the content is less than 5%, the component (a) may precipitate over time and cause clogging, and when it exceeds 50%, the oily feeling of the skin after use becomes strong, and the texture is inferior. When the content is 15 to 40%, it can be sprayed uniformly, and can also be made excellent in texture.

The component (c) ethylhexyl methoxy citrate used in the present invention is a UV absorber that is liquid at 25 ° C. The content of component (c) in the water-in-oil emulsion is 5 to 15%, more preferably 7 to 12%. If the content is less than 5%, the component (a) may precipitate over time and cause clogging, and if it exceeds 15%, stickiness occurs and the texture is inferior. When the content is 7 to 12%, it can be sprayed uniformly, and it can be made excellent in texture.

In the water-in-oil emulsion of the present invention, the mass ratio of components (a) to (b) and (c) (a): (b) + (c) is preferably from 1:10 to 1:20, more preferably It is from 1:10 to 1:15. If it is within this range, a cosmetic composition having excellent stability and no stickiness is obtained.

In the water-in-oil emulsion of the present invention, it is possible to further blend the component (d) silicone oil. The component (d) is not particularly limited, but is preferably liquid at 25 ° C, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyl Tetrasiloxane, methyltrimethicone, capryltrimethicone, dimethylpolysiloxane, methylphenylpolysiloxane, and the like, and one or two or more of them can be used. In general, it is known that most of the UV absorbers have difficulty in compatibility with silicone oil, and it is preferable that the content of silicone oil is as small as possible, since component (a) is not an exception, but is considered to be useful when considering the usability as a sunscreen cosmetic. It is preferable to mix about 1 to 20% in the male emulsion. If it is within this range, stability is good, and a refreshing feeling of use is obtained. Compounding (d) silicone oil is also preferred from the viewpoint of improving stability when used in combination with silicone powders, such as polymethylsilsesquioxane, which are commonly used as a texture adjuster, or silicon surface treatments of metal oxides, which are ultraviolet protective components. .

In addition, in the water-in-oil emulsion of the present invention, as long as the effects of the present invention are not impaired, as necessary, the ingredients to be blended into a normal cosmetic composition include oil components, surfactants, aqueous components, and components other than components (b) to (d). UV absorbers other than (a) and (c), powders, water-soluble polymers, moisturizers, antioxidants, anti-fading agents, preservatives, medicinal ingredients, stabilizers, pigments, fragrances, and the like can be suitably blended to provide various effects.

The oily component is not particularly limited as long as it is usually used in cosmetics other than components (b) to (d), regardless of the properties of solid oils, semi-solid oils, liquid oils, and volatile oils of animal oil, vegetable oil, synthetic oil, etc., Hydrocarbons, oils, waxes, hydrogenated oils, ester oils, fatty acids, higher alcohols, fluorine oils, lanolin derivatives, oily gelling agents, oil-soluble resins, and the like.

Specifically, hydrocarbons such as liquid paraffin, squalane, petrolatum, paraffin wax, ceresin wax, microcrystalline wax, ethylene propylene copolymer, montan wax, Fischer-Tropsch wax, light flow isoparaffin, isododecane, wax, etc. Oils such as olive oil, castor oil, mink oil, macadamia nut oil, waxes such as beeswax, carnauba wax, candelilla wax, wax, jojoba oil, cetyl isooctanate, isopropyl myristate, isopropyl palmitate , Octyl dodecyl myristate, glyceryl trioctanoate, diglyceryl diisostearate, diglyceryl triisostearate, glyceryl tribehenate, diisostearyl malate, neopentyl glycol dioctanoate, tri isononanoate Decyl, isotridecyl isononanoate, alkyl benzoate, diisopropyl sebacate, diethylhexyl sebacate, cholesterol fatty acid ester, N-lauroyl-L-gly Esters such as dilutamic acid (cholesteryl, behenyl, octyldodecyl), stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol, and higher alcohols, purple Fluorine-based emulsions such as ruodecane, perfluorooctane, and perfluoropolyether, lanolin derivatives such as lanolin, lanolin acetate, lanolin fatty acid isopropyl, lanolin alcohol, dextrin octanoate, dextrin laurate, and dextrin palmitate, Dextrin myristate, dextrin stearate, dextrin behenate, palm oil fatty acid dextrin, (palmitic acid / octanoic acid) dextrin, sucrose fatty acid ester, starch fatty acid ester, 12-hydroxystearic acid, oily gelling agent such as calcium stearate Oil-soluble resins such as pentaerythryl rosin, hydrogenated rosin acid, and specific alkyl acrylate methylpolysiloxane esters. One or two or more of these oily components can be used as necessary, and among them, alkyl benzoate, diisopropyl sebacate, and diethylhexyl sebaate are preferable from the viewpoint of stability.

As the surfactant, any surfactant can be used as long as it is used in cosmetics in general, and examples thereof include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. Specifically, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, sucrose fatty acid ester, polyoxyethylene cured castor oil, poly And oxyalkylene alkyl co-modified organopolysiloxanes, polyether-modified organopolysiloxanes, and the like. One or two or more of these surfactants may be used as necessary, but it is necessary to mix non-ionic surfactants of HLB 7 or less in order to form a water-in-oil emulsion. Among them, from the viewpoint of stability, a nonionic surfactant composed of an ester bond of polyhydroxystearic acid, for example, dipolyhydroxystearic acid PEG-30, or a lipophilic silicone surfactant, such as PEG-9 polydimethyl Siloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone and the like are preferred.

As an aqueous component, in addition to so-called water such as deionized water, distilled water, purified water, hot spring water, or distilled water derived from plants such as rose water and lavender water, it is soluble in water and can be a solvent, for example, ethyl alcohol, isopropyl alcohol, etc. And glycols such as alcohols, propylene glycol, 1,2-pentylene glycol, 1,3-butylene glycol, dipropylene glycol, and polyethylene glycol, and glycerols such as glycerin, diglycerin, and polyglycerin.

As an ultraviolet absorber, a benzophenone type, PABA type, cinnamic acid type, salicylic acid type, silicone type etc. are mentioned, for example. Specifically, 2- [4- (diethylamino) -2-hydroxybenzoyl] benzoic acid hexyl ester, oxybenzone, 4-tert-4'-methoxydibenzoylmethane, 2-hydroxy-4-methoxybenzophenone , Salicylic acid-2-ethylhexyl, para-dihydroxypropyl benzoate, dimethoxybenzylidenedioxoimidazolidinepropionic acid 2-ethylhexyl, 2,2'-methylenebis [6- (2H-benzotriazole-2 days ) -4- (1,1,3,3-tetramethylbutyl) phenol], (1,3,5) -triazine-2,4-bis [{4- (2-ethylhexyloxy) -2 -Hydroxy} -phenyl] -6- (4-methoxyphenyl) -1,3,5-triazine, dimethycodiethylbenzalmalonate, 2-hydroxy-4-methoxybenzophenone-5-sulfur Folic acid and its sodium salt, polysilicon-15, etc. are mentioned.

As the powder, any powder used for cosmetics in general can be used, and for the purpose of adjusting the texture, for example, silicon powder, talc, sericite, silica, mica, kaolin, calcium carbonate, aluminum oxide, polyethylene powder, polymeta Powders such as methyl acrylate and nylon powder can be used. In addition, a metal oxide powder may be used to impart an ultraviolet protective effect, and examples thereof include zinc oxide, titanium oxide, and cerium oxide, and these may be used in combination of one or two or more. These powders are known surface treatment methods such as silica treatment, alumina treatment, aluminum hydroxide treatment, fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, silane treatment, emulsion The surface treatment may be performed by a method such as treatment, N-acylation treatment, polyacrylic acid treatment, metal soap treatment, acrylic resin treatment, or metal oxide treatment. However, in the present invention, when the metal oxide powder is blended in a large amount, the transparency may be lowered or the squeaking feeling may be increased, so the blending amount is preferably 10% or less, more preferably 5% or less, in the water-in-oil emulsion.

As a moisturizing agent, for example, proteins, mucopolysaccharides, collagen, elastin, keratin, etc., as antioxidants, for example, α-tocopherol, ascorbic acid, for example, as cosmetic ingredients, for example, vitamins, anti-inflammatory agents, herbal medicines, as preservatives , For example, paraoxybenzoic acid ester, phenoxyethanol, 1,2-pentanediol, and the like.

The method for producing the water-in-oil type emulsifier of the present invention is not particularly limited, and is prepared by a conventional method. For example, other oily components and surfactants are obtained by dissolving component (a) in component (b) and component (c) by heating and dissolving it. It is obtained by mixing with and emulsifying the aqueous component. In addition, when blending the powder, it is preferable to emulsify after sufficiently dispersing it in an oily component or an aqueous component in advance.

The mass ratio (oil component) of the oil component and the water component in the water-in-oil emulsion of the present invention: (aqueous component) is also different depending on the prescription, but, for example, 1: 3 to 3: 1 is preferable, and more preferably Is 1: 2 to 2: 1. In addition, the content of the emulsifier in the water-in-oil emulsion of the present invention is an amount that can stably emulsify the aqueous component in the oil-based component, and is preferably 0.1 to 5% of the water-in-oil emulsifier. This is because it is possible to stably emulsify in such a range, and crystal precipitation is not confirmed even when the time has elapsed, so it is excellent in stability and uniformly sprayed when used as an aerosol-type sunscreen cosmetic.

(Spray)

As the liquefied gas used in the present invention, one or two or more selected from hydrocarbons having 2 to 5 carbon atoms and dimethyl ether can be used in combination. Examples of the hydrocarbon having 2 to 5 carbon atoms include ethane, propane, n-butane, isobutane, n-pentane, isopentane, neopentane and the like. Among them, by using an oil-in-water emulsifier in an aerosol container with an external phase, it reduces the interaction with the internal phase and improves long-term stability. It is desirable to do. Furthermore, from the viewpoint of safety under high temperature, liquefied petroleum gas (hereinafter referred to as LPG 0.15) in which the pressure at 20 ° C is adjusted to 0.15 kPa is preferred.

Although the method of filling the aerosol of the present invention is not particularly limited, the water-in-oil type emulsion prepared by a conventional method is filled in an inner pressure vessel, aerosol valve is fixed to the vessel, and liquefied gas is injected through the valve. In addition, an aerosol product is obtained by mounting an injection member according to the purpose to the aerosol valve. In addition, depending on the viscosity of the water-in-oil emulsifier or the like, the liquefied gas may be injected after separately filling the oil phase and the water phase or powder for forming the water-in-oil emulsion for homogenization in the filling process.

Example

The present invention will be described in more detail with reference to examples below. Also, they do not limit the present invention at all.

Examples 1-6 and Comparative Examples 1-8:

An aerosol-type sunscreen cosmetic was prepared by the composition shown in Table 1 and the following manufacturing method. The obtained cosmetics were evaluated by the following method, and the results are shown in Table 1 together.

A: Components (1) to (3) and (6) to (8) are dissolved by heating.

Components (4) to (5) and (9) and (10) are mixed in B: A, and (11) is uniformly dispersed.

C: Components (12) to (16) were mixed, added to B, emulsified to obtain a stock solution.

After filling 9 g of the stock solution obtained in D: C into a pressure resistant container made of transparent glass and aluminum, the valve was fixed, and 21 g of LPG 0.15 was charged into the pressure resistant container through the valve to obtain an aerosol-type sunscreen cosmetic.

(Evaluation method 1: crystal precipitation)

The aerosol compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were filled into a pressure-resistant container made of transparent glass, and as an accelerated test of stability over time, crystal precipitation of a sample returned to 25 ° C. after being left at -20 ° C. for 2 weeks The presence or absence was visually confirmed.

[Criteria]

(Judgment): (Evaluation)

○: Crystal precipitation was not confirmed.

×: Crystal precipitation was confirmed.

(Evaluation method 2: no clogging)

The aerosol compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were filled into an aluminum pressure resistant container (specifications; stem: 0.4 m diameter, housing: 0.8 x 0.55 mm diameter, button: 0.5 mm diameter), and 5 ° C and Samples stored at 40 ° C for 1 month were returned to room temperature and sprayed at 10 second intervals at 25 ° C, respectively, and the sprayability when used to the last was evaluated by the following evaluation criteria.

[Criteria]

(Judgment): (Evaluation)

(Circle): It was usable in the uniform spray state until the last.

×: The spraying state was uneven, and a clogging occurred in the middle, making it unusable.

(Evaluation method 3: transparency)

30 g of the aerosol compositions of Examples 1 to 6 and Comparative Examples 1 to 8 were filled into an aluminum pressure-resistant container, and sprayed for 3 seconds at a position 15 cm apart from a black hair of 10 cm, and the finished state immediately afterwards was visually observed. Did.

[Criteria]

(Judgment): (Evaluation)

○: It is finished transparently.

×: What looks white stands out.

(Evaluation method 4: no stickiness)

For 20 panelists specialized in cosmetic evaluation, spray the aerosol compositions of Examples 1 to 6 and Comparative Examples 1 to 8 on the left forearm for 3 seconds, and then spread them by hand to use them. Each of them was evaluated in five stages according to the following evaluation criteria to give scores for each sample, and further, the average points of the overall panel ratings were judged according to the following criteria.

[Evaluation standard]

(Rating): (Result)

5 points: Very good

Four points: Good

Three points: Normal

Two points: Slightly poor

1 point: Poor

[Criteria]

(Judgment): (Average of ratings)

◎ ： 4.5 ~ 5.0 points

○: Less than 3.5 to 4.5 points

△: 2.0 to less than 3.5 points

×: Less than 1.0 to 2.0 points

As is clear from the results in Table 1, all of the aerosol-type sunscreen cosmetic compositions of Examples 1 to 6 did not show precipitation of bisethylhexyloxyphenolmethoxyphenyltriazine, and were excellent in stability even at low temperatures and at high temperatures. It was excellent in usability without stickiness.

On the other hand, in Comparative Examples 1 to 3 in which other ester oils were blended in place of component (B), crystal precipitation of bisethylhexyloxyphenolmethoxyphenyltriazine was confirmed, and there was a problem in stability. Triethylhexanoin and octanoic acid tax As for Till, it was also inferior in texture. Comparative Example 4 with many components (B) had stickiness and was inferior in texture. Precipitation of crystals was confirmed in Comparative Example 5 without blending component (C), and Comparative Example 6 with many components (C) was poor in texture. When the content ratio of component (A): component (B) + (C) deviates, crystal precipitation was confirmed and there was a problem in stability.

From the above results, it was shown that by combining each component of the present invention, an aerosol-type sunscreen material having excellent stability and no stickiness can be obtained.

Example 7 Material of aerosol type sunscreen

(Stock component) (%)

1. Bisethylhexyloxyphenolmethoxyphenyltriazine 3

2. Dipropylene glycol propylene glycol 30

3. Ethyl hexyl methoxy citrate 7.5

4. Decamethylcyclopentasiloxane 5

5. Phenoxyethanol 0.3

6. Sesquistearate sorbitan 0.25

7. PEG-9 polydimethylsiloxyethyldimethicone 0.5

8. Hydrophobized fine particle titanium oxide (Note 1) 5

9. Phenylbenzimidazole sulfonic acid 3

10. Triethanolamine 1.68

11.Dipropylene glycol 5

12. Purified water 38.77

(Note 1) Particulate titanium oxide MTY-110M3S (manufactured by Teika Corporation)

(Manufacturing method)

A: The component (8) is dispersed in an appropriate amount of the component (2) and component (7).

B: Components (1) to (3) are dissolved by heating.

Components (4) to (6) and B are mixed in C: A and dispersed uniformly.

D: Components (9) to (12) are mixed, added to C, emulsified to obtain a stock solution.

After filling 6 g of the stock solution obtained in E: D into an aluminum pressure resistant container, the valve was fixed, and 24 g of LPG 0.15 through the valve was charged into the pressure resistant container to obtain an aerosol-type sunscreen cosmetic.

In Example 7, immediately after spraying, the aerosol-attached part appears white, but immediately becomes transparent, and the precipitation of bisethylhexyloxyphenolmethoxyphenyltriazine is not confirmed, there is no clogging, and there is no stickiness on the touch. It was a sunscreen material.

Example 8 Material of aerosol type sunscreen

(Stock component) (%)

1. Bisethylhexyloxyphenolmethoxyphenyltriazine 3

2. Dicaprylic acid propylene glycol 25

3. Ethyl hexyl methoxy citrate 7.5

4. Polysilicon-15 3

5. Alkyl benzoate (C12-C15) 5

6. Sebasdiisopropyl (Note 2) 5

7. Dipolyhydroxystearic acid PEG-30 0.2

8. Diisostearate polyglyceryl-2 0.1

9. PEG-9 polydimethylsiloxyethyldimethicone 0.2

10. Silicon-coated fine particles zinc oxide (Note 3) 5

11. Phenylbenzimidazole sulfonic acid 3

12. Triethanolamine 1.68

13. Ethanol 15

14. Purified water 26.32

(Note 2) IPSE (manufactured by Nippon Fine Chemical Co., Ltd.)

(Note 3) FINEX-50S-LP2 (manufactured by Sakai Chemical Industries)

(Manufacturing method)

A: Components (1) to (3) are dissolved by heating.

Components (4) to (10) are mixed in B: A and dispersed uniformly.

C: Components (11) to (14) are mixed, added to B, and emulsified.

After filling 9 g of the stock solution obtained in D: C into an aluminum pressure resistant container, the valve was fixed, and 21g of LPG 0.15 was charged into the pressure resistant container through a valve to obtain an aerosol-type sunscreen cosmetic.

In Example 8, precipitation of bisethylhexyloxyphenolmethoxyphenyltriazine was not confirmed, and it was an aerosol-type sunscreen material having no stickiness on the touch.

Example 9 Material of aerosol-type sunscreen

(Stock component) (%)

1. Bisethylhexyloxyphenolmethoxyphenyltriazine 3

2. Hexyl diethylaminohydroxybenzoylbenzoate (Note 4) 1

3. Di (caprylic / capric) propylene glycol 20

4. Ethyl hexyl methoxy citrate 10

5. Dimethicone (Note 5) 5

6. Diethylhexyl sebaate (Note 6) 5

7. Dipolyhydroxystearic acid PEG-30 0.25

8. PEG-9 polydimethylsiloxyethyldimethicone 0.25

9. Ethanol 15

10. Purified water 40.5

(Note 4) UVINUL A PLUS (manufactured by BASF)

(Note 5) SH200C FLUID 6CS (manufactured by Dow Corning Toray)

(Note 6) Neosolue-EHS (manufactured by Nippon Fine Chemical Co., Ltd.)

(Manufacturing method)

A: Components (1) to (4) are dissolved by heating.

Components (5) to (8) are mixed in B: A and dispersed uniformly.

C: Components (9) to (10) are mixed, added to B, and emulsified.

After filling 9 g of the stock solution obtained in D: C into an aluminum pressure resistant container, the valve was fixed, and 15 g of LPG 0.15 and 6 g of dimethyl ether were charged into the pressure resistant container through a valve to obtain an aerosol-type sunscreen cosmetic.

In Example 9, the precipitation of bisethylhexyloxyphenolmethoxyphenyltriazine was not confirmed, and it was an aerosol-type sunscreen material having no stickiness on the touch.

Example 10: Aerosol type sunscreen material

(Stock component) (%)

1. Bisethylhexyloxyphenolmethoxyphenyltriazine 3

2. Hexyl diethylaminohydroxybenzoylbenzoate (Note 4) 3.3

3. Di (caprylic / capric) propylene glycol 40

4. Ethyl hexyl methoxy citrate 7.5

5. Polysilicon-15 3

6. Dipolyhydroxystearic acid PEG-30 0.25

7. PEG-9 polydimethylsiloxyethyldimethicone 0.25

8. Phenoxyethanol 0.5

9. Polymethylsilsesquioxane 5

10. Dipropylene glycol 5

11.Methylparabens 0.15

12. Purified water 32.05

(Manufacturing method)

A: Components (1) to (4) are dissolved by heating.

After mixing components (5) to (8) in B: A, (9) is uniformly dispersed.

C: Components (10) to (12) were mixed, added to B, emulsified to obtain a stock solution.

After filling 9 g of the stock solution obtained in D: C into a pressure resistant container made of transparent glass and aluminum, the valve was fixed, and 21 g of LPG 0.15 was charged into the pressure resistant container through the valve to obtain an aerosol-type sunscreen cosmetic.

In Example 10, the precipitation of bisethylhexyloxyphenolmethoxyphenyltriazine was not confirmed, and it was an aerosol-type sunscreen material having no stickiness on the touch.

Claims (3)

The following components (a) to (c);
(a) 1 to 3% by mass of bisethylhexyloxyphenolmethoxyphenyltriazine
(b) 5-50% by mass of diesters of propylene glycol and fatty acids having 8 to 10 carbon atoms
(c) 5 to 15% by mass of ethyl hexyl methoxycinate
An aerosol-type sunscreen cosmetic composition containing a liquefied gas as a propellant and a propellant which is a water-in-oil type emulsion, comprising: a mass ratio of components (a) to (b) and (c) in the water-in-oil emulsion ((a) : (B) + (c)) is an aerosol-type sunscreen cosmetic, characterized in that it is in the range of 1:10 to 20. According to claim 1,
An aerosol-type sunscreen cosmetic comprising the component (d) silicone oil in the water-in-oil type emulsion. The method according to claim 1 or 2,
Aerosol-type sunscreen cosmetic The aerosol-type sunscreen cosmetic having a water-in-oil emulsion and liquefied gas filling ratio of 15 to 40% by mass of water-in-oil emulsion and 60 to 85% by mass of liquefied gas.