KR20160094341A - UV block cosmetic composition comprising high inorganic uv absorbers - Google Patents

Abstract

The present invention relates to a sun-blocking cosmetic composition in which the high content of inorganic sunblock is stably dispersed in a formulation. According to the present invention, methicone polymerized with an alkyl chain with 1 to 12 carbon atoms is used in the sun-blocking cosmetic composition so as to stably disperse the high content of the inorganic sunblock in the formulation, thereby exhibiting excellent sun-blocking effects and outstanding spreadability due to low hardness of the formulation. Furthermore, owing to a reduced undesirable whitening phenomenon, the sun-blocking cosmetic composition exhibits remarkably excellent formulation stability as well, since sweating, extraction, and separation such as oil extraction are avoided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a UV block cosmetic composition comprising a high UV absorber,

The present invention relates to a cosmetic composition containing an inorganic UV-blocking agent, and more specifically, to a UV-blocking cosmetic composition having a high content of an inorganic UV-blocking agent stably dispersed in a formulation.

The sunlight can be divided into infrared rays, visible rays and ultraviolet rays. Among them, ultraviolet rays which can adversely affect the skin can be divided into three kinds according to the wavelength length as follows. Ultraviolet C (hereinafter referred to as UVC) having a wavelength of 200 to 290 nm is lost due to reflection or scattering occurring when it reaches the ozone layer and can not reach the surface, but ultraviolet B (hereinafter referred to as UVB) having a wavelength of 290 to 320 nm and 320 to 400 nm (Hereinafter referred to as UVA) reaches the surface of the earth and has various effects on the skin of the human body. UVB penetrates to the epidermis of skin to cause erythema, freckles and swelling. UVA penetrates into the dermis of the skin, causing melanin, wrinkles and skin cancer, and is known to cause skin aging and skin irritation. As the public awareness of UV protection products increases with the exposure to sunlight exposure, products with various Sun Protection Factors (SPF) and UV Protection Classes (UVA, PA) It is being released.

Such sunscreen products are broadly classified broadly into water-in-water and water-in-water or non-water-based formulations. In the case of underwater type emulsion products, there is a feeling of excellent skin application feeling provided by the water of the trauma, but there is a problem of persistence of effect due to sweat and water due to lack of water resistance. In case of water type product, But it has the advantage of good water resistance. In the case of non-aqueous UV-blocking formulations, it has the advantage of providing a unique feeling in addition to the advantages of good water resistance which is characteristic of water-in-oil type products.

Recently, there is an increasing demand for various types of ultraviolet screening agents because consumers are demanding ultraviolet screening products having a high level of ultraviolet screening ability but having a feeling of being tacky or inconvenient. In order to obtain a high ultraviolet shielding effect of ultraviolet screening cosmetic, an organic ultraviolet screening agent or an inorganic ultraviolet screening component should be increased. However, if the ultraviolet screening cosmetic contains a large amount of organic ultraviolet screening agent, there is a risk of skin irritation due to chemical reaction, such as tackiness and shine. On the other hand, when the inorganic UV blocking agent is increased, it is difficult to uniformly disperse the UV blocking agent, the UV blocking value is not increased in proportion to the inorganic UV blocking agent content, the hardness is increased, You can not increase sunscreen unconditionally. Formulations containing a high content of an inorganic sunscreen agent may be developed into a stick or night (ointment) type, but are often limited to localized products rather than general-purpose products due to their unique feeling of use, which leads to restrictions on formulation development.

SUMMARY OF THE INVENTION The present invention provides a UV-blocking cosmetic composition comprising a high-content inorganic UV-blocking agent stably dispersed in a formulation.

It is another object of the present invention to solve the problem of lowering the dispersibility of a high content of the inorganic ultraviolet screening agent and to reduce the hardness of the formulation and improve the spreadability while satisfying the high ultraviolet cutoff value and at the same time, And to provide an ultraviolet-shielding cosmetic composition excellent in stability without development.

The present invention provides a UV-blocking cosmetic composition comprising an inorganic UV-blocking agent and a methicone polymerized with an alkyl chain of C1-12.

The present inventors have made intensive researches to overcome the problems of the prior arts and to enhance the stability of formulations of ultraviolet-shielding cosmetics and to improve the usability. As a result, it is important to increase the proportion of inorganic sunscreen agents to increase the ultraviolet shielding value so as to increase their dispersibility Respectively. In addition, it was confirmed that the improvement of the dispersibility means the increase of the ultraviolet barrier index and at the same time, the hardness of the formulation is lowered and the feeling of use is improved. The present inventors have found that methicone polymerized with 1 to 12 alkyl chains as a dispersion medium contributes greatly to the effect of improving the dispersibility of the inorganic ultraviolet screening agent and the formulation stability of the cosmetic composition. The methicone in which 1 to 12 alkyl chains of the carbon are polymerized is excellent in compatibility with the organic UV-ray shielding component and the other polar ester component in the oil component, effectively preventing the separation phenomenon in the formulation, And the present invention has been completed.

The ultraviolet barrier cosmetic composition of the present invention is characterized in that the inorganic ultraviolet screening agent is highly dispersed in the composition by the methicone polymerized with the alkyl chain of C1-12.

Preferably, the ultraviolet barrier cosmetic composition may be made non-aqueous. The non-aqueous UV-blocking cosmetic composition may contain a small amount of water-containing ingredients in consideration of feeling of use, and may contain less than 5% by weight, preferably 0.1 to 4% by weight, more preferably 0.1% To 3% by weight, or may not contain any of the water-based ingredients.

The non-aqueous ultraviolet barrier cosmetic composition may be prepared into an oil form composed mainly of a liquid phase oil component or a stick or night type formulation hardened to a solid state. Since the non-aqueous ultraviolet-blocking cosmetic composition contains a small amount of a water-based component or does not contain any water-containing component at all, it is excellent in water resistance and can actively utilize the characteristics of an oil-based component.

In the present invention, the inorganic ultraviolet blocking agent may include at least one selected from the group consisting of titanium dioxide, zinc oxide, and iron oxide. Preferably, the inorganic ultraviolet screening agent may be titanium dioxide, zinc oxide, or a mixture thereof, which is recognized as an inorganic ultraviolet ray blocking component in Korea Food and Drug Administration. The titanium dioxide and zinc oxide are preferably used in an amount of 25% by weight or less of the composition, respectively, according to criteria set forth by the Food and Drug Administration.

The inorganic UV blocking agent may be used in an amount of 1 to 50% by weight, preferably 3 to 45% by weight, more preferably 5 to 40% by weight, and most preferably 7 to 35% by weight based on the total weight of the composition. When the inorganic UV blocking agent is less than 1% by weight, the ultraviolet blocking effect is weak. When the inorganic UV blocking agent is more than 50% by weight, the stability of the formulation and feeling of use are poor.

In the present invention, the methicone is a linear silicon-based polymer and refers to monomethyl polysiloxane. The methicone in which the C1-12 alkyl chain is polymerized can be used as a dispersion solvent for dispersing the inorganic ultraviolet screening agent, and it can be used as a dispersing solvent for dispersing the inorganic ultraviolet screening agent. Examples of the solvent include methylmethicone, ethilchicone, propylmethicone, butylmethicone, pentylmethicone, Heptamethicone, octylmethicone, nonylmethicone, decylmethicone, undecylmethicone, and dodecylmethicone may be used.

The methicone in which the C1-12 alkyl chain is polymerized may be contained in an amount of 1 to 50% by weight, preferably 3 to 40% by weight, more preferably 5 to 30% by weight based on the total weight of the composition. When the amount of methicone polymerized with C1-12 alkyl chains is less than 1% by weight, the effect of dispersing the inorganic ultraviolet screening agent is insufficient. When the amount exceeds 50% by weight, the stability of the formulation is impaired.

In the present invention, the inorganic ultraviolet screening agent and the methicone polymerized with the C1-12 alkyl chain are used in a ratio of 1: 0.1 to 10, preferably 1: 0.2 to 5, more preferably 1: 0.3 to 3, And a weight ratio of 0.5 to 2.5 (inorganic sunscreen agent: methicone in which the alkyl chain of C1-12 is polymerized). When the two components are contained in the specific weight ratio, even though the inorganic UV-blocking agent is contained in a high content, the C1-12 alkyl chain is effectively dispersed in the formic acid by the methicone polymerized, , And the feeling of use such as durability is excellent.

In the present invention, the composition may further include an organic UV blocking agent to enhance the ultraviolet blocking effect. The organic UV blocking agent may be contained in an amount of 0.1 to 20% by weight, preferably 0.5 to 17% by weight, more preferably 1 to 15% by weight based on the total weight of the composition. However, when the composition of the present invention exerts a sufficient ultraviolet shielding effect only with an inorganic sunscreen agent, it may not include an organic sunscreen agent to prevent skin irritation.

Wherein the organic UV blocking agent is selected from the group consisting of ethylhexylmethoxycinnamate, octyl salicylate, isoamyl p-methoxy cinnamate, ethylhexylsalicylate, bis-ethylhexyloxyphenol methoxyphenyltriazine, diethylaminohydroxybenzoyl Hexylbenzoate, octocrylene, butylmethoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranylate, phenylbenzimidazosulfuric acid, 2-hydroxy-4-methoxybenzophe- nylsulfonic acid and 3,4-methylbenzylidene camphor, and the like.

In the present invention, the composition may further include at least one selected from the group consisting of powders, oils, and stabilizers.

The powder may be used as an additional means of stabilizing the oil component in the formulation as a component having a suction force, and means excluding the inorganic ultraviolet blocking agent and the organic ultraviolet blocking agent in the present invention.

The powder may be a clay mineral powder including alumina, silica, talc, mica, kaolin, barium silicate, zeolite, muscovite, synthetic mica and magnesium carbonate; Barium sulfate, iron titanate, titanium oxide coated mica, and the like; And an organic powder including polystyrene powder, polymethyl methacrylate powder, polyethylene powder, nylon powder and silicone powder, but the present invention is not limited thereto. Preferably, talc is used as the powder.

Preferably, the powder is subjected to a hydrophobic treatment. Examples of the hydrophobic treatment method include a method of treating the surface with a high-viscosity silicone, a method of reacting and treating an alkyl hydrogen polysiloxane, a method of treating with a cation, an anion or a nonionic surfactant, or a method of covering the surface with a wax .

The powder may be contained in an amount of 0.1 to 20% by weight, preferably 0.3 to 15% by weight, more preferably 0.5 to 10% by weight based on the total weight of the composition. If the amount of the powder is less than 0.1% by weight, the effect of stabilizing the oil component is insufficient. If the amount is more than 20% by weight, the feeling and the stability of the formulation are deteriorated.

The kind of the oil component is not particularly limited, and a common oil used in the cosmetic composition can be used. More specifically, the oil component is a hydrocarbon-based oil including squalane, mineral oil and the like; Caprylic / capric triglyceride, neopentyl glycol dicaprate, 2-octyldodecyl myristate, isopropyl myristate, isocetyl ethyl hexanoate, pentaerythritol tetraethyl hexanoate, butylene glycol dicapryl Ester-based oils such as laccate, laccate, hexyllaurate, distearylate, cetyl 2-ethylhexanoate, triethylhexanoin, octyldodecanol, glyceryl triethylhexanoate and the like; Vegetable oils including olive oil, avocado oil, jojoba oil, macadamia oil and the like; Animal oils including lanolin and the like; And silicone oils including dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, methyltrimethicone, phenyltrimethicone, cyclomethicone, dimethicone, and the like. Preferably, the oil may be dimethicone for the stability of the formulation.

The oil component may be contained in an amount of 0.1 to 70% by weight, preferably 1 to 65% by weight, more preferably 5 to 60% by weight, and most preferably 10 to 55% by weight based on the total weight of the composition. When the oil component is less than 0.1% by weight, it is difficult to form a formulation containing oil components. When the oil component is more than 70% by weight, the feeling of use is deteriorated.

The stabilizer can be used as an enhancer to increase the liquid phase oil components and trap them in the formulations, and has the effect of improving the stability of the formulation. Preferably, the stabilizing agent may be a lipophilic surfactant, a lipophilic polymer having a high molecular weight, or an oil gelling agent. More specifically, the stabilizer is selected from the group consisting of glyceryl stearate, sorbitan sesquioleate, sorbitan olivate, sorbitan stearate, phage-10 dimethicone, lauryl phage-9 polydimethylsiloxy ethyl dimethicone, Lipophilic surfactants including stearic acid, distearyl dimonium chloride, and cetylpyridine / piperidine-10/1 dimethicone; Dimethicone cross polymer, cetearyl dimethicone cross polymer, cetearyl dimethicone / vinyl dimethicone cross polymer, dimethicone / vinyl dimethicone cross polymer, dimethicone / phage-10 cross polymer, dimethicone / 15 crosspolymer, dimethicone / polyglyceryl-3 crosspolymer, dimethicone / silsesquioxane copolymer, dimethicone / phenylvinyl dimethicone crosspolymer, vinyl dimethicone / lauryl dimethicone-15 crosspolymer, A high molecular weight oleophilic polymer including lauryl dimethicone / polyglycerin-3 crosspolymer and the like; And glyceryl behenate, glyceryl behenate / eicosadioate, polyglyceryl-6 octostearate, stearoyl inulin, dextrin palmitate, dextrin palmitate / ethyl hexanoate, dextrin myristate, trihydroxy Stearin, silica silylate, silica dimethysilylate, stearalkonium hectorite, distearammonium hectorite, hectorite, poly C10-30 alkyl acrylate, hydrogenated soy glyceride and C15-23 alkane, and the like And an oil gelling agent to be used in the present invention may be used.

Preferably, the stabilizer is selected from the group consisting of dimethicone crosspolymer, vinyl dimethicone / methicyl silsesquioxane cross polymer, dimethicone / vinyl dimethicone cross polymer, lauryl pyridine-9 polydimethylsiloxy ethyl dimethicone, Chicory / phage-10/15 crosspolymer, glyceryl behenate, and stearoyl inulin. When these are used, the stabilizing effect is more excellent.

The stabilizer may be used in an amount of 0.1 to 30 wt%, preferably 1 to 27 wt%, more preferably 3 to 25 wt%, and most preferably 5 to 20 wt% based on the total weight of the composition. If the amount of the stabilizer is less than 0.1% by weight, the effect of increasing the oil component and stabilizing the formulation is insufficient. If the amount is more than 30% by weight, the feeling and the stability of the formulation may deteriorate.

In addition, the ultraviolet barrier cosmetic composition according to the present invention may contain, in addition to the above components, a perfume, a pigment, a preservative, a bactericide, an oxidative stabilizer, a pearl agent, an emulsifier, a moisturizer, a thickener, , A synthetic polymer, a saccharide, a buffer, various kinds of extract, and the like, may be appropriately blended, and the mixture may be prepared by a conventional method.

In addition, the ultraviolet barrier cosmetic composition according to the present invention can be used as a foundation, a solution, an ointment, a cream, a foam, a nutritional lotion, a softening longevity, a pack, a flexible water, an emulsion, a makeup base, , A paste, a gel, a lotion, a powder, an oil, an emulsion foundation, a patch, or a spray, but the present invention is not limited thereto.

The ultraviolet barrier cosmetic composition according to the present invention is characterized by having an ultraviolet barrier property (SPF) of 40 or more, preferably 50 to 80, and an ultraviolet A blocking degree (PA) of triple plus (PA +++).

The present invention relates to a composition comprising 1 to 50% by weight of an inorganic ultraviolet screening agent, 0.1 to 50% by weight of methicone polymerized with an alkyl chain having 1 to 12 carbon atoms, 0.1 to 30% by weight of a stabilizer, 0.1 to 20% To 70% by weight of the cosmetic composition. Preferably, the ultraviolet barrier cosmetic composition may be made non-aqueous. The ultraviolet barrier cosmetic composition prepared as described above has a high dispersibility of the inorganic ultraviolet screening agent and is remarkably excellent in feeling of use such as ultraviolet shielding effect, spreadability, and formulation stability.

The ultraviolet barrier cosmetic composition of the present invention has a high content of inorganic UV blocking agent stably dispersed in a formulation and has an excellent ultraviolet shielding effect, a low hardness of the formulation and excellent spreadability, a reduced whitening phenomenon, There is no perspiration, precipitation and separation phenomenon, and the stability of the formulation is remarkably excellent.

Fig. 1 is a graph showing the results of evaluation of dispersibility by viscosity measurement in Examples 1 and 2 and Comparative Examples 1 to 5 in Experimental Example 1. Fig.
Fig. 2 is a photograph showing microscopic observation of the dispersions in Examples 1 and 2 and Comparative Examples 1 to 5 in order to evaluate the dispersibility visually.

Hereinafter, embodiments of the present invention will be described in detail to facilitate understanding of the present invention. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the following embodiments. Embodiments of the invention are provided to more fully describe the present invention to those skilled in the art.

Example  1 to 2 and Comparative Example  Manufacture of 1 to 5

In Example 1, to determine the dispersibility of oil, 70% by weight of titanium dioxide and 30% by weight of oil to be tested for dispersibility were stirred at 1,500 RPM for 5 minutes, and the viscosity was measured. As the titanium dioxide, a commonly used TTO-S-4 raw material of ISHIHARA SANGYO was used. After measuring the viscosity, the sample was diluted 10 times in the dispersion medium, and then an oil film of 30 um was prepared on a slide glass and observed with a microscope to observe the dispersibility visually. Example 2 and Comparative Examples 1 to 5 were produced in the same manner as in Example 1 with the compositions shown in Table 1 below, and their dispersibility was evaluated.

Example
One Example
2 Comparative Example
One Comparative Example
2 Comparative Example
3 Comparative Example
4 Comparative Example
5 Distribution dealer
(oil)
25% Hexyl
Mechicone Desil
Mechicone Squalane Phenyl tri
Mechicone Tree in seven
Hexanone Caprylic / Capricorn
Triglyceride Isostearyl
Isostearate weapon
UV-rays
Blocker
75% Titanium dioxide

Example  3 to 4 and Comparative Example  Manufacture of 6 ~ 9

In Example 3, raw materials 5 to 21 as oil components were dissolved by heating at 80 to 85 캜 according to the composition shown in the following Table 2, and raw materials of inorganic UV blocking agents and powders 1 to 4 were added and dispersed uniformly And then cooled to 28 캜 to prepare a non-aqueous UV blocking cosmetic composition. Example 4 and Comparative Examples 6 to 9 were produced in the same manner as in Example 3 with reference to the composition shown in Table 2 below.

ingredient Content (% by weight) Example 3 Example 4 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 One Talc 3.0 2.0 3.0 2.0 4.0 4.0 2 Titanium dioxide 5.0 18.0 7.0 15.0 9.0 9.0 3 Zinc oxide 8.0 8.0 10.0 5.0 5.0 5.0 4 Aluminum hydroxide 1.0 1.0 1.0 1.0 1.0 1.0 5 Dimethicone TO 100 6 Caprylylmethicone 15.0 7 Heptylmethicone 15.0 8 Squalane 15.0 9 Cyclopentasiloxane 15.0 10 Triethanolhexanone 15.0 11 To a solution of < RTI ID = 0.0 & 7.0 7.0 7.0 7.0 7.0 7.0 12 To a solution of < RTI ID = 3.0 3.0 3.0 3.0 3.0 3.0 13 Dimethicone crosspolymer 3.0 5.0 3.0 3.0 5.0 14 Vinyl Dimethicone / Methiconic Ssesquioxane Crosspolymer 2.0 2.0 2.0 2.0 2.0 2.0 15 Dimethicone / Vinyl Dimethicone Crosspolymer 2.0 5.0 2.0 2.0 16 Lauryl phage-9 polydimethylsiloxy ethanedimethicone 2.0 2.0 2.0 2.0 2.0 2.0 17 Dimethicone / phage-10/15 cross polymer 3.0 3.0 3.0 3.0 3.0 3.0 18 Glyceryl behenate 1.5 1.5 1.5 1.5 1.5 1.5 19 Stearoyl inulin 1.0 1.0 1.0 1.0 1.0 1.0 20 Stearic acid 1.0 1.0 1.0 1.0 1.0 1.0 21 Spices 0.3 0.3 0.3 0.3 0.3 0.3

Experiment Evaluation example

The compositions prepared through Examples 1 to 2 and Comparative Examples 1 to 5 were evaluated for the dispersibility of the inorganic ultraviolet screening agent through viscosity measurement and microscopic observation. Also, the feeling of use and formulation stability were evaluated for the compositions prepared through Examples 3 to 4 and Comparative Examples 6 to 9, and detailed evaluation methods and results were as follows.

Experimental Example  1: Evaluation of dispersibility (viscosity measurement)

The viscosities of the compositions prepared through Examples 1 to 2 and Comparative Examples 1 to 5 were measured. Spindle # 4 was used as a Brookfield LV viscometer and the measured values were applied one minute after the start of the measurement. The results are shown graphically in FIG.

As a result of measurement of viscosity values, Examples 1 and 2 including methicone polymerized with alkyl chains of 1 to 12 carbon atoms had viscosity of 500 and 800 cps, respectively, which were significantly lower than those of other dispersants. Thus, it can be confirmed that Examples 1 and 2 have high dispersibility of the inorganic UV blocking component.

Experimental Example  2: Evaluation of dispersibility (observation under a microscope)

The composition prepared in Examples 1 to 2 and Comparative Examples 1 to 5 was diluted 10 times with the dispersion medium, and then an oil film was formed on a slide glass at 30 μm and observed with a microscope. The results are shown in FIG.

As a result of observation with a microscope, it was visually confirmed that Examples 1 and 2 containing methicone polymerized with alkyl chain having 1 to 12 carbon atoms had better dispersion than those using other dispersion media. It can be confirmed that this is similar to the dispersibility evaluation result that can be known from the viscosity measurement result of Experimental Example 1. [

Experimental Example  3: Feeling  evaluation

The feeling of use was evaluated for the compositions prepared through Examples 3 to 4 and Comparative Examples 6 to 9, and detailed evaluation methods and results are as follows. Thirty female 25 to 45 year old female panelists were divided into two groups. Examples 3 to 4 and Comparative Examples 6 to 9 were appropriately adjusted for each group and used on both sides of the face. The feeling of use such as rashiness, opacity, appearance (preference) and overall satisfaction felt when applied according to the following evaluation criteria was evaluated, and the results are shown in Table 3.

<Evaluation Criteria>

More than 24 women judged to be excellent: ◎

18-23 women judged to be excellent: ○

10 to 17 women judged to be excellent: △

More than 10 women judged to be excellent: X

Item Example 3 Example 4 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Cloudiness ◎ ◎ △ X △ △ Stiffness ◎ ○ X X △ X Formulation appearance ◎ ◎ △ X △ X Overall satisfaction ◎ ◎ ○ ○ △ △

As shown in Table 3, when the methicone polymerized with alkyl chains having 1 to 12 carbon atoms according to the present invention was used as a dispersion medium (Examples 3 to 4), the dispersion of the inorganic UV-blocking agent was well- . In addition, in Examples 3 to 4, the whitening phenomenon in which the powder was allowed to clump was also reduced, and the appearance of the formulation and the overall satisfaction were also excellent.

Experimental Example  4: Formulation stability evaluation

The formulation stability was evaluated for the compositions prepared through Examples 3 to 4 and Comparative Examples 6 to 9, and detailed evaluation methods and results are as follows. The compositions prepared in Examples 3 to 4 and Comparative Examples 6 to 9 were maintained at a temperature of 45 ° C, 37 ° C, 25 ° C, 0 ° C, and -15 ° C for 1 month, Changes were visually evaluated.

<Evaluation Criteria>

Oil rupture, separation phenomenon does not occur: ○

Oil rupture occurred: △

Form separation occurs: X

Example 3 Example 4 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 45 ° C ○ ○ X X X X 37 ℃ ○ ○ △ ○ △ △ 25 ℃ ○ ○ ○ ○ ○ ○ 0 ℃ ○ ○ ○ ○ △ ○ -15 ℃ ○ ○ X △ X △

As shown in Table 4, when the methicone polymerized with alkyl chains having 1 to 12 carbon atoms according to the present invention was used as a dispersion medium (Examples 3 to 4), the inorganic UV blocking agent was well dispersed and the stability of the formulation was improved Respectively. Therefore, it was confirmed that the formulation stability of the composition of the present invention is also excellent.

Claims (11)

An inorganic UV-blocking agent and a methicone polymerized with an alkyl chain of C1-12. The UV-blocking cosmetic composition according to claim 1, wherein the composition is non-aqueous. The UV-blocking cosmetic composition according to claim 1, wherein the inorganic UV-blocking agent is 1 to 50% by weight based on the total weight of the composition. The method according to claim 1, wherein the methicone in which the C1-12 alkyl chain is polymerized is at least one selected from the group consisting of methylmethicone, ethylchicone, propylmethicone, butylmethicone, pentylmethicone, hexylmethicone, , Nonyl methicone, decylmethicone, undecylmethicone, and dodecylmethicone. The ultraviolet-blocking cosmetic composition according to claim 1, wherein the methicone in which the C1-12 alkyl chain is polymerized is 1 to 50% by weight based on the total weight of the composition. The inorganic ultraviolet screening agent according to claim 1, wherein the inorganic ultraviolet screening agent and the methicone polymerized with the C1-12 alkyl chain are in a weight ratio of 1: 0.1 to 10 (inorganic ultraviolet screening agent: methicone polymerized with C1-12 alkyl chains) By weight. The cosmetic composition according to claim 1, wherein the composition is highly dispersed in the composition by methicone in which the inorganic UV-blocking agent is polymerized with C1-12 alkyl chains. The cosmetic composition of claim 1, wherein the composition further comprises an organic UV blocking agent in an amount of 0.1 to 20% by weight based on the total weight of the composition. The cosmetic composition according to claim 1, wherein the composition further comprises at least one selected from the group consisting of powder, oil, and stabilizer. The cosmetic composition of claim 1, wherein the composition has an ultraviolet barrier property (SPF) of 50 to 80 and an ultraviolet A blocking degree (PA) of triple plus (PA +++). 0.1 to 50% by weight of an alkyl chain polymerized with C1-12 alkyl, 0.1 to 30% by weight of a stabilizer, 0.1 to 20% by weight of a powder and 0.1 to 70% by weight of an oil % &Lt; / RTI &gt;

Images