JP2015182989A - sunscreen cosmetics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide sunscreen cosmetics that are excellent in usability and use feeling, and which can keep high ultraviolet protection effect for a long time.SOLUTION: The problem is solved by aerosol type sunscreen cosmetics comprising a stock solution comprising the following components A), B), and C) and a propellant, wherein the A) component is silicone oil solution 30 mass% or more, the B) component is ultraviolet absorber and the C) component is alkyl-modified silicone modified with a 2-12C alkyl group.

Description

  The present invention relates to a sunscreen cosmetic having a high UV protection effect and a good feeling of use that maintains the effect for a long time.

  Sunscreen cosmetics are required not only to have an excellent effect of protecting the skin from ultraviolet rays, but also to have excellent usability and usability. Since sunscreen cosmetics are frequently used in summer, there is a demand for a good feeling of use, such as a refreshing feeling when applied.

  In order to respond to these demands, attempts have been made to make sunscreen cosmetics into aerosol form. (See, for example, Patent Documents 1, 2, and 3) However, in these techniques, excellent usability can be obtained, but the feeling of use is not sufficiently satisfactory in summer use. In addition, although it shows a high protective effect against ultraviolet rays immediately after use, it is insufficient in terms of whether the effect can be maintained over time. Accordingly, there has been a demand for sunscreen cosmetics that have good usability and feeling of use, and that can retain the UV protection effect for a long period of time.

  On the other hand, aerosol type sunscreen cosmetics containing ultraviolet absorbers, silicone oil occupying a certain proportion or more in the stock solution, and containing alkyl-modified silicone modified with an alkyl group having 2 to 12 carbon atoms are used. It has not been known that it has excellent properties and feeling of use and has a high UV protection effect for a long time.

JP 2010-120871 A JP 2004-224706 A JP 2010-90056

This invention makes it a subject to provide the sunscreen cosmetics which are excellent in usability and a usability | use_condition, and can hold | maintain a high ultraviolet-ray protective effect for a long period of time.

In view of the above-described problems of the prior art, the inventors have intensively studied for sunscreen cosmetics that are excellent in usability and usability and have a high UV protection effect, and as a result, UV absorbers. An aerosol-type sunscreen cosmetic that contains an alkyl-modified silicone modified with an alkyl group having 4 to 12 carbon atoms, wherein the silicone oil occupies a certain ratio or more in the stock solution, and The headline, the present invention has been reached. That is, the present invention is as follows.
(1) An aerosol-type sunscreen cosmetic comprising a stock solution containing the following components A) and B) C) and a propellant.
A) Silicone oil agent 30% by mass or more B) Ultraviolet absorber C) Alkyl-modified silicone modified with an alkyl group having 2 to 12 carbon atoms (2) 5.0 to 15.0% by mass of ultraviolet absorber in stock solution (1) The aerosol type sunscreen cosmetic according to (1).
(3) As an ultraviolet absorber, 1 type or 2 or more types selected from the ultraviolet absorber which absorbs the ultraviolet-ray of A area | region and 1 type or 2 or more types selected from the ultraviolet absorber which absorbs the ultraviolet-ray of B area | region are contained. The aerosol-type sunscreen cosmetic according to (1) or (2), wherein
(4) The alkyl-modified silicone modified with an alkyl group having 2 to 12 carbon atoms is contained in the stock solution in an amount of 0.1 to 10.0% by mass, according to any one of (1) to (3) Aerosol type sunscreen cosmetics.
(5) The aerosol type sunscreen cosmetic according to any one of (1) to (4), further comprising a branched fatty acid.

The present invention can provide a sunscreen cosmetic that is excellent in usability and usability and can retain a high UV protection effect for a long period of time.

Hereinafter, the present invention will be described in detail.
<1> Silicone oil which is an essential component of the aerosol-type sunscreen cosmetic of the present invention The aerosol-type sunscreen cosmetic of the present invention contains 30% by mass of a silicone oil in the stock solution. Specific examples of the silicone oil of the present invention include dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, diphenylsiloxyphenyltrimethicone, trimethylsiloxyphenyldimethicone, and dimethylpolysiloxane modified with alkyl having 13 or more carbon atoms. And linear silicones such as decamethylcyclopentasiloxane and cyclic silicones such as dodecamethylcyclohexasiloxane.

  In addition, silicone having emulsifying ability such as polyether-modified silicone and polyglycerin-modified silicone, partially crosslinked silicone such as (dimethicone / vinyl dimethicone) crosspolymer, dimethicone / (PEG-10 / 15) crosspolymer, acrylic modified silicone Such a graft polymer type silicone is not included in the silicone oil of the present invention.

The content of the silicone oil in the aerosol-type sunscreen cosmetic of the present invention is 30% by mass or more in the stock solution, preferably 35% by mass or more, and more preferably 45% by mass or more. By making the content of the silicone oil within the above range, a refreshing and good feeling of use can be obtained.

<2> Ultraviolet Absorber as an Essential Component of the Aerosol-type Sunscreen Cosmetic of the Present Invention The aerosol-type sunscreen cosmetic of the present invention contains an ultraviolet absorber as its essential component. In the present invention, the ultraviolet absorber absorbs ultraviolet rays and plays a role of protecting the skin from ultraviolet rays, and absorbs ultraviolet rays in the A region (hereinafter referred to as UV-A absorber) and B region. It is preferable to use an ultraviolet absorber that absorbs the ultraviolet rays (hereinafter referred to as UV-B absorber) in combination.

Specific examples of the UV-A absorber include 2-hydroxy-4-methoxybenzophenone, 2- (2′-hydroxy-5′-methylphenyl) benzotriazole, and dimethoxybenzylidene dioxoimidazolidine propionate 2-ethylhexyl. Bis (resulcinyl) triazine, methylenebisbenzotriazolyltetramethylbutylphenol, hexyl diethylaminohydroxybenzoylbenzoate, T-butylmethoxybenzoylmethane, and the like. Of these, hexyl diethylaminohydroxybenzoyl benzoate and T-butylmethoxybenzoylmethane are particularly preferred because of their excellent ultraviolet absorbing ability. Since these compounds have commercial products, commercial products can be used as they are. Specific examples of commercially available products include “UVINUL A + GRANULAR” (diethylaminohydroxybenzoyl hexyl benzoate manufactured by BASF) and “Pulsol 1789” (manufactured by T-butylmethoxybenzoylmethane DSM).

Specific examples of the UV-B absorber include 2-ethylhexyl paramethoxycinnamate, 2-ethylhexyl 2-cyano-3,3-diphenylacrylate, dimethicodiethylbenzalmalonate, 2, 4, 6 -Trianilino-P- (carbo-2'-ethylhexyl-1'-oxy) -1,3,5-triazine, 2-hydroxy-4-methoxybenzophenone, homomenthyl salicylate, octyl salicylate, 2-phenylbenzimidazole-5 And compounds such as sulfonic acid. Since these compounds have commercial products, commercial products can be used as they are. Specific commercial products include “Ubinal MC80” (2-ethylhexyl paramethoxycinnamate, manufactured by BASF), “Ubinal T150” (2,4,6-trianilino-P- (carbo-2′-ethylhexyl-1′-). Oxy) -1,3,5-triazine (made by BASF), “Ubinal M40” (made by 2-hydroxy-4-methoxybenzophenone BASF), “Pulsol SLX” (made by dimethicodiethylbenzalmalonate DSM), “Pulsol 340” (2-ethylhexyl 2-cyano-3,3-diphenylacrylate, manufactured by DSM), “Pulsol HMS” (Homomentyl salicylate, manufactured by DSM), “Parsol EMS” (manufactured by octyl salicylate, DSM), “EUSOLEX 232” (2-Phenylbenzimidazole-5- Rufon acid manufactured by Merck & Co., Inc.) and the like.

Furthermore, bisethylhexyloxyphenol methoxyphenyl triazine is mentioned as an ultraviolet absorber that absorbs ultraviolet rays over the A and B regions, and is commercially available as “Tinosorb Tinosorb S” (BASF SE).

Content of the said ultraviolet absorber is 5.0-15.0 mass% of the total amount of stock solutions of aerosol type sunscreen cosmetics with the total amount of UV-A absorber and UV-B absorber, and 8.0-8.0 It is preferable that it is 12.0 mass%. When the content is lower than the lower limit, the protective effect against ultraviolet rays may be insufficient. When the content is higher than the upper limit, the protective effect against ultraviolet rays reaches a peak even when the content is increased. It may not be possible to reduce the usability such as increasing the elongation.

<3> Alkyl-modified silicone modified with an alkyl group having 2 to 12 carbon atoms, which is an essential component of the aerosol type sunscreen cosmetic of the present invention. The aerosol type sunscreen cosmetic of the present invention has 2 to 2 carbon atoms as an essential component. It contains alkyl-modified silicone modified with 12 alkyl groups (hereinafter referred to as alkyl-modified silicone). Specific examples of such alkyl-modified silicones include ethyltrisiloxane, octyltrisiloxane, caprylylmethicone and the like. Since these alkyl-modified silicones also have commercial products, these commercial products can be obtained and used.
Specific commercial products include “SILSOFT (registered trademark) ESS”, “SILSOFT (registered trademark) 034” (both manufactured by Momentive Performance Materials), and “Silicone SS3408” (Toray Dow Corning Co., Ltd.) Manufactured) and the like.

The content of the alkyl-modified silicone in the aerosol-type sunscreen cosmetic of the present invention is preferably 0.1 to 10.0% by mass in the stock solution of the aerosol-type sunscreen cosmetic, and preferably 0.5 to 5.0% by mass. % Is more preferable. By setting the content within this range, the ultraviolet ray protection effect can be maintained for a long time.

<4> LPG which is an essential component of the aerosol type sunscreen cosmetic of the present invention
The aerosol type sunscreen cosmetic of the present invention contains a propellant as an essential component. As the propellant, so-called liquefied natural gas (LPG) used for ordinary aerosol is preferable. Since these LPGs also have commercial products, such commercial products can be purchased and mixed with the stock solution to make aerosol cosmetics.

  The mixing ratio of the stock solution and the propellant in the aerosol type sunscreen cosmetic is preferably in the range of 90:10 to 10:90, more preferably in the range of 60:40 to 20:80. Below the lower limit, the projection of the aerosol cosmetic from the container may be insufficient, which is not preferable. On the other hand, when the amount is not less than the upper limit, the amount of the discharged stock solution is too small, and the effect as a sunscreen cosmetic may be insufficient.

<5> Branched fatty acid of aerosol-type sunscreen cosmetic of the present invention The aerosol-type sunscreen cosmetic of the present invention preferably contains a branched fatty acid because the ultraviolet protection effect can be maintained for a long period of time. Preferred examples of such branched fatty acids include isobutyric acid, 4-methylpentanoic acid, 2-ethylhexanoic acid, and isostearic acid.

  The content of the branched fatty acid is preferably 0.01 to 1.0% by mass, more preferably 0.05 to 0.5% of the total amount of the stock solution of the aerosol type sunscreen cosmetic. By taking such a range, the ultraviolet protection effect is maintained for a longer period.

<6> Aerosol-type sunscreen cosmetic of the present invention The aerosol-type sunscreen cosmetic of the present invention is an essential component of a silicone oil of 30% by mass or more, and an alkyl-modified silicone modified with an alkyl group having 2 to 12 carbon atoms. And an ultraviolet absorber, and optionally a stock solution containing a branched fatty acid and a propellant.

Moreover, the aerosol type sunscreen cosmetics can contain optional components that are usually used in cosmetics in addition to the above essential components, as long as the effects of the invention are not impaired. Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hardened coconut oil, hardened Oil, molasses, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, botarou, lanolin, reduced lanolin, hard lanolin, jojoba oil, waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum, micro Hydrocarbons such as crystallin wax, oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, higher fatty acids such as stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostearyl High alcohols such as alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate, and modified polymers such as polyether-modified polysiloxane Anionic surfactants such as xanthone, fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, alkylsulfuric triethanolamine ether, and cationic interfaces such as stearyltrimethylammonium chloride, benzalkonium chloride, laurylamine oxide Activators, imidazoline amphoteric surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaines, amide betaines, sulfobetaines, etc.) Amphoteric surfactants such as acylmethyltaurine, sorbitan fatty acid esters (such as sorbitan monostearate, sorbitan sesquioleate), glycerin fatty acids (such as glyceryl monostearate), propylene glycol Recall fatty acid esters (such as propylene glycol monostearate), hydrogenated castor oil derivatives, glycerin alkyl ether, POE sorbitan fatty acid esters (such as POE sorbitan monooleate, polyoxyethylene sorbitan monostearate), POE sorbite fatty acid esters ( POE-sorbitol monolaurate, etc.), POE glycerin fatty acid esters (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether) Etc.), POE alkyl phenyl ethers (POE nonyl phenyl ether, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP) -Decyltetradecyl ether, etc.), tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), nonionic surfactants such as sucrose fatty acid ester, alkyl glucoside, polyethylene glycol Glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexylene glycol, 1,2 -Polyhydric alcohols such as hexanediol and 1,2-octanediol, moisturizing ingredients such as sodium pyrrolidonecarboxylate, lactic acid, sodium lactate, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin Mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin sulfate, dermatan sulfate, glycogen, heparan sulfate, hyaluronic acid, sodium hyaluronate, tragacanth gum, keratan sulfate, chondroitin, mucoitin sulfate Hydroxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfuric acid, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethyl chitin, agar, polyvinyl alcohol, polyvinyl pyrrolidone, carboxyvinyl polymer, sodium polyacrylate, Thickeners such as polyethylene glycol and bentonite Good, mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silicic anhydride (silica), aluminum oxide, barium sulfate and other powders, surface treated, cobalt oxide, ultramarine, bitumen, Zinc oxide inorganic pigments, surface treated, composite pigments such as iron oxide titanium dioxide sintered body, surface treated, pearl agents such as titanium mica, fish phosphorus foil, bismuth oxychloride Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, which may be raked No., Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red No. 204, and other organic pigments, polyethylene powder, polymethyl methacrylate, Nai Down powder, organic powders such as organopolysiloxane elastomers, ethanol, lower alcohols such as isopropanol, vitamin A or its derivatives, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ Or its derivatives, vitamin B ₁₂ such as vitamin B ₁₂ , vitamin B ₁₅ or derivatives thereof, vitamin E such as Α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin D, vitamin H, pantothenic acid And vitamins such as pantethine and pyrroloquinoline quinone.

  The aerosol cosmetic composition of the present invention can be prepared, for example, by preparing a stock solution containing the above essential components and optional components and then mixing the mixture in a propellant and an aerosol container.

EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to a following example.
<Examples 1-5, Comparative Examples 1-2>
The ingredients shown in Table 1 were mixed by stirring at room temperature to prepare a uniform solution. This stock solution and commercially available LPG were filled in an aerosol container at a mass ratio of 30:70 to prepare an aerosol cosmetic.

＊ １）「シリコーンＫＦ５４」 信越化学工業株式会社製
＊ ２）「シリコーンＳＳ３４０８」 東レ・ダウコーニング株式会社製
＊ ３）「ＳＩＬＳＯＦＴ（登録商標） ０３４」モメンティブ・パフォーマンス・マテリアルズ社製
＊ ４）「イソステアリン酸ＥＸ」 高級アルコール工業株式会社製
＊ ５）「ＴＩＮＯＳＯＲＢ Ｓ」 ＢＡＳＦ社製
＊ ６）「ＵＶＩＮＵＬ Ａ＋ＧＲＡＮＵＬＡＲ」 ＢＡＳＦ社製
＊ ７）「パルソール１７８９」 ＤＳＭ社製
＊ ８）「ノムコートＴＡＢ−Ｒ」 日清オイリオグループ株式会社製
＊ ６）「パルソールＳＬＸ」ＤＳＭ社製

* 1) "Silicone KF54" manufactured by Shin-Etsu Chemical Co., Ltd. * 2) "Silicone SS3408" manufactured by Toray Dow Corning Co., Ltd. * 3) "SILSOFT (registered trademark) 034" manufactured by Momentive Performance Materials * 4) Isostearic acid EX ”manufactured by Higher Alcohol Industry Co., Ltd. * 5)“ TINOSORB S ”manufactured by BASF * 6)“ UVINUL A + GRANULAR ”manufactured by BASF * 7)“ Pulsol 1789 ”manufactured by DSM * 8)“ NOM COAT TAB-R ” * 6) "Pulsol SLX" manufactured by DSM

<Test Example 1> Measurement of SPF value The SPF value when the aerosol cosmetics of Examples 1 to 6 and Comparative Examples 1 and 2 were applied was measured by the method of ISO 24444. The results are shown in Table 2.

<Test Example 2> Evaluation of PFA Value The PFA value when the aerosol cosmetics of Examples 1 to 6 and Comparative Examples 1 and 2 were applied was evaluated by the test method of JCIA 1995 PFA. The results are shown in Table 2.

<Test Example 3> Stability by storage of SPF value and PFA value The aerosol cosmetics of Examples 1 to 6 and Comparative Examples 1 and 2 were allowed to stand at 40 ° C. for 3 months. Then, SPF value and PFA value were measured. Table 2 shows the results obtained after determining the value immediately after preparation when the value is 100.

<Test Example 3> Evaluation of elongation at the time of use Five sensory evaluators performed sensory evaluation on the refreshing feeling when the aerosol cosmetics of Examples 1 to 6 and Comparative Examples 1 and 2 were applied to the skin. Evaluation was performed based on the following evaluation criteria. In the evaluation, the average value of five people was obtained and used as the score of the cosmetic. The results are shown in Table 2.
Compared with the comparative example 1 refreshing feeling:
There are quite 5 points,
There are 4 points, 3 points,
Somewhat not,
Not quite 1 point

表２から明らかなように本発明のエアゾール化粧料が長期間の保存によっても、紫外線防御効果が維持され、良好な使用感を有することが確認された。

As is apparent from Table 2, it was confirmed that the aerosol cosmetic composition of the present invention maintained a UV protection effect even after long-term storage and had a good feeling of use.

The present invention can be used as a sunscreen cosmetic.

Claims (5)

An aerosol-type sunscreen cosmetic comprising a stock solution containing the following components A) and B) C) and a propellant.
A) Silicone oil agent 30% by mass or more B) Ultraviolet absorber C) Alkyl-modified silicone modified with an alkyl group having 2 to 12 carbon atoms The aerosol type sunscreen cosmetic according to claim 1, wherein the stock solution contains 5.0 to 15.0% by mass of an ultraviolet absorber. One or two or more types selected from ultraviolet absorbers that absorb ultraviolet rays in the A region and one or two or more types selected from ultraviolet absorbers that absorb ultraviolet rays in the B region are contained as the ultraviolet absorbers. The aerosol type sunscreen cosmetic according to claim 1 or 2. The aerosol type | mold of any one of Claims 1-3 which contains 0.1-10.0 mass% of alkyl modified silicone modified | denatured by the C2-C12 alkyl group in a stock solution. Sunscreen cosmetics. The aerosol type sunscreen cosmetic according to any one of claims 1 to 4, further comprising a branched fatty acid.