KR102463836B1 - Uv protecting cosmetic composition - Google Patents

Abstract

The present invention relates to a cosmetic composition for sunscreen, and in detail, according to the present invention, it is possible to provide a very stable water-in-oil type formulation despite including a high content of siloxane-based elastomer polymer. In addition, according to the present invention, with a soft feeling of use, excellent UV protection effect and immediate skin texture improvement effect can be simultaneously provided, and the user's aesthetic and feeling of use can be satisfied with a differentiated appearance.

Description

Cosmetic composition for UV protection {UV PROTECTING COSMETIC COMPOSITION}

The present invention relates to a cosmetic composition for sunscreen.

Recently, outdoor activities are increasing due to the expansion of leisure time and increased interest in health. In particular, as the dangers caused by exposure to sunlight become known, consumers are very interested in products that block UV rays. Accordingly, products having various 　 UV 　 blocking factor (Sun Protection Factor; SPF) and 　 UV 　 A 　 blocking factor (Protection Factor in UVA; PFA) are being released.

In general, UV 　 blocking products are broadly classified into water in oil (W/O) or oil in water (O/W) depending on the components and their content. In the case of the water-in-oil type, it has excellent water resistance and durability, but has a disadvantage in that it does not apply well due to a heavy and stuffy skin feeling due to the oily component of the trauma. In the case of the underwater type, it has excellent spreadability and can give a refreshing feeling of use due to moisture from the trauma, but has a disadvantage in that there is a limit to the durability of the effect due to sweat or water due to the lack of water resistance.

On the other hand, in order to realize a high level of 　 UV 　 blocking effect, an excessive amount of organic sunscreen is used, which causes problems such as greasiness or a dull feeling, which impairs the feeling of use.

Accordingly, there is a need for a UV blocking product capable of improving the above-described problems, as well as realizing an excellent UV blocking effect and increasing the feeling of use at the same time.

As part of this study, the present inventors tried to introduce a high content of siloxane-based elastomer polymer in order to realize a high UV protection effect with excellent water resistance and durability, which are the advantages of a water-in-oil type UV blocking cosmetic composition, and at the same time increase user satisfaction. .

However, in general, the siloxane-based elastomer polymer has a disadvantage in stability over time (eg, phase separation) due to low compatibility with organic sunscreens.

Deepening research to solve the problem of stability over time, the present inventors have devised a combination of a predetermined siloxane-based elastomer polymer and an organic sunscreen. As a result, it has been confirmed that a very stable formulation can be implemented in spite of using a high content of siloxane-based elastomer polymer, and a water-in-oil type cosmetic composition for UV protection that can implement a differentiated appearance can be provided. The invention was completed.

It is an object of the present invention to provide a stable water-in-oil type cosmetic composition for UV protection comprising a high content of siloxane-based elastomer polymer.

Another object of the present invention is to provide a cosmetic composition for UV protection that can provide an excellent UV protection effect and an immediate skin texture improvement effect with a unique feeling of use.

Another object of the present invention is to provide a cosmetic composition for blocking ultraviolet rays that can provide a differentiated appearance by displaying various colors depending on the angle of light.

For the above purpose, the present invention may include the following means.

One aspect of the present invention is a cosmetic composition for sunscreen comprising a siloxane-based elastomer polymer including a hydrophilic polyalkylene oxide block and an organic sunscreen, wherein the composition comprises a salicylate-based compound, a dibenzoylmethane-based compound, and an acrylate It is characterized in that it contains a mixture of two or more organic sunscreens selected from the group consisting of compounds.

The cosmetic composition for sunscreen according to an embodiment of the present invention may satisfy the following relational expression (1).

[Relational Expression 1]

0.3 ≤ [(T _S )/(T _S + T _D + T _A )] ≤ 0.6

[In the above relation 1,

T _S is the weight percent of the salicylate-based compound based on the total weight of the composition,

T _D is the weight % of the dibenzoylmethane-based compound based on the total weight of the composition,

T _A is the weight % of the acrylate-based compound based on the total weight of the composition,

However, T _D or T _A may be 0% by weight.]

A cosmetic composition for sunscreen according to an embodiment of the present invention includes a salicylate-based compound selected from ethylhexyl salicylate, TA-salicylate, isopropylbenzyl salicylate, homosalate, and the like; 4-methyldibenzoylmethane, 2-methyldibenzoylmethane, 4-isopropyldibenzoylmethane, 4-tert-butyldibenzoylmethane, 2,4-dimethyldibenzoylmethane, 2,5-dimethyldibenzoylmethane, 4 ,4'-diisopropylbenzoylmethane, 4-tert-butyl-4'-methoxydibenzoylmethane, 4,4'-diisopropylbenzoylmethane, 2-methyl-5-isopropyl-4'-methoxydibenzoyl dibenzoylmethane compounds selected from methane, 2-methyl-5-tert-butyl-4'-methoxydibenzoylmethane, and the like; and an acrylate-based compound selected from octocrylene and polyacrylamidomethyl benzylidene camphor.

The cosmetic composition for sunscreen according to an embodiment of the present invention is dimethicone/bis-isobutyl PG-20 crosspolymer, PEG-12　dimethicone/PG-20 crosspolymer and dimethicone/PEG-10/ 15 It may include one or more siloxane-based elastomer polymers selected from crosspolymers and the like.

The cosmetic composition for sunscreen according to an embodiment of the present invention includes an oil phase including a siloxane-based elastomer polymer including a hydrophilic polyalkylene oxide block and an organic sunscreen, and an aqueous phase including water and polyhydric alcohol, and the oil phase part The difference between the refractive indexes of the and the image receiving part may be 0.05 or less.

The cosmetic composition for sunscreen according to an embodiment of the present invention comprises: an oil phase comprising 5 to 30% by weight of the siloxane-based elastomer polymer and 5 to 20% by weight of the organic sunscreen, based on the total weight of the composition; and an aqueous phase comprising 20 to 60% by weight of the polyhydric alcohol and the remaining amount of water, wherein the difference in refractive index between the oil phase and the aqueous phase (ΔR) may be less than or equal to 0.05.

The cosmetic composition for sunscreen according to an embodiment of the present invention may further include a polar oil in the oil phase.

The cosmetic composition for blocking ultraviolet rays according to an embodiment of the present invention may further include a water-soluble ultraviolet absorber in the water-receiving part.

The cosmetic composition for sunscreen according to an embodiment of the present invention may use a siloxane-based elastomer polymer in the form of a paste dispersed in a dispersion medium.

In the cosmetic composition for sunscreen according to an embodiment of the present invention, the siloxane-based elastomer polymer may be in the form of a paste dispersed in silicone oil such as dimethicone, cyclomethicone, phenyltrimethicone and cyclopentasiloxane. .

The cosmetic composition for sunscreen according to an embodiment of the present invention may be applied to a brush, puff, puff-integrated, roll-on, roller, or sponge tip type applicator.

According to the present invention, it is possible to provide a cosmetic composition for blocking ultraviolet rays having a transparent or translucent appearance having excellent formulation stability despite the use of a high content of siloxane-based elastomer polymer.

In addition, according to the present invention, it is possible to provide a water-in-oil type UV-blocking cosmetic composition that is gently applied to the skin with a refreshing feeling and has excellent water resistance and durability.

In addition, according to the present invention, by adjusting the refractive index of the oil phase and the receiving part and containing a high content of siloxane-based elastomer polymer, a differentiated appearance that can display various colors depending on the angle of light without using a liquid crystal material can be realized. have.

In short, according to the present invention, it is possible to provide a stable, water-in-oil type UV-blocking cosmetic composition that can simultaneously provide an excellent UV-blocking effect and an immediate skin texture improvement effect with a soft feeling. In addition, the differentiated appearance can satisfy the user's aesthetic and usability.

1 is a photograph observing the appearance characteristics of a cosmetic composition for UV protection prepared in Example 1 of the present invention.

The cosmetic composition for sunscreen according to the present invention will be described in detail below, but unless otherwise defined in the technical and scientific terms used at this time, the meaning commonly understood by those of ordinary skill in the art to which this invention belongs In the following description, descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted.

As used herein, the term "siloxane-based elastomer polymer comprising a hydrophilic polyalkylene oxide block" refers to a siloxane-based elastomer polymer comprising two or more repeating units including an alkylene oxide, the ratio of the alkylene oxide A limited example may include ethylene oxide, propylene oxide, and the like.

In addition, as used herein, the term "block" refers to a structural unit having a predetermined length formed by continuously covalent bonding of the same repeating unit.

In addition, as used herein, the term "paste" has an anisotropic crystalline structure in a solid state, and a combination of components including a liquid fraction and a solid fraction at room temperature (23° C.) reversibly changes to a solid or liquid phase. It means a compound that undergoes change.

In addition, as used herein, the term "difference in refractive index between the oil phase and the image part" means the difference between the refractive index of the oil phase (R _OIL ) and the refractive index of the image part (R _WATER ), and means the absolute value of the corresponding value. That is, the difference in refractive index (ΔR) between the oil phase and the image portion means "|R _OIL -R _WATER | value".

As a result of repeated research on formulations for imparting a good feeling of use, the present inventors introduced a siloxane-based elastomer polymer to realize a high UV protection effect with excellent water resistance and durability, which are the advantages of a water-in-oil type UV protection cosmetic composition, and at the same time It was confirmed that it can provide a soft and light feeling of use.

In addition, the present invention was completed by confirming that the cosmetic composition for sunscreen according to the present invention can effectively inhibit the stability of the dosage form, that is, the change of the dosage form according to the change over time, when combined with a predetermined organic sunscreen agent.

Hereinafter, the configuration of the present invention will be described in detail.

A cosmetic composition for sunscreen of one aspect of the present invention includes a siloxane-based elastomer polymer including a hydrophilic polyalkylene oxide block and an organic sunscreen, wherein the organic sunscreen is a salicylate-based compound, a dibenzoylmethane-based compound, and It may be a mixture of two or more selected from acrylate-based compounds.

By having the above-mentioned combination, it is advantageous to ensure the stability over time of the water-in-oil type UV-blocking cosmetic composition. Moreover, according to the present invention, in spite of using a high content of the siloxane-based elastomer polymer, it is possible to secure a very stable formulation without causing agglomeration or agglomeration of the formulation.

In the cosmetic composition for sunscreen according to an embodiment of the present invention, the organic sunscreen is a salicylate selected from ethylhexyl salicylate, TEA-salicylate, isopropylbenzyl salicylate, homosalate, and the like. compound; 4-methyldibenzoylmethane, 2-methyldibenzoylmethane, 4-isopropyldibenzoylmethane, 4-tert-butyldibenzoylmethane, 2,4-dimethyldibenzoylmethane, 2,5-dimethyldibenzoylmethane, 4 ,4'-diisopropylbenzoylmethane, 4-tert-butyl-4'-methoxydibenzoylmethane, 4,4'-diisopropylbenzoylmethane, 2-methyl-5-isopropyl-4'-methoxydibenzoyl dibenzoylmethane compounds selected from methane, 2-methyl-5-tert-butyl-4'-methoxydibenzoylmethane, and the like; and an acrylate-based compound selected from octocrylene and polyacrylamidomethyl benzylidene camphor.

For example, the organic sunscreen agent includes one or more salicylate-based compounds selected from ethylhexyl salicylate, TA-salicylate, isopropylbenzyl salicylate and homosalate, and 4-tert-butyldi Benzoylmethane, 4,4'-diisopropylbenzoylmethane, 4-tert-butyl-4'-methoxydibenzoylmethane, 4,4'-diisopropylbenzoylmethane, 2-methyl-5-isopropyl-4' One or a combination of two or more dibenzoylmethane compounds selected from -methoxydibenzoylmethane and 2-methyl-5-tert-butyl-4'-methoxydibenzoylmethane.

For example, the organic sunscreen agent includes one or more salicylate-based compounds selected from ethylhexyl salicylate, TA-salicylate, isopropylbenzyl salicylate and homosalate, and octocrylene and polyacrylic acid. It may be one or a combination of two or more acrylate-based compounds selected from amidomethyl benzylidene camphor.

As an example, the organic sunscreen agent includes one or more salicylate-based compounds selected from ethylhexyl salicylate, TA-salicylate, isopropylbenzyl salicylate and homosalate and 4-tert- Butyldibenzoylmethane, 4,4'-diisopropylbenzoylmethane, 4-tert-butyl-4'-methoxydibenzoylmethane, 4,4'-diisopropylbenzoylmethane, 2-methyl-5-isopropyl- One or two or more dibenzoylmethane compounds selected from 4'-methoxydibenzoylmethane and 2-methyl-5-tert-butyl-4'-methoxydibenzoylmethane, and octocrylene and polyacrylamidomethyl benzylidene camphor It may be one selected from the like or a combination of two or more acrylate-based compounds.

The cosmetic composition for sunscreen according to an embodiment of the present invention may satisfy the following relational expression (1).

[Relational Expression 1]

0.3 ≤ [(T _S )/(T _S + T _D + T _A )] ≤ 0.6

[In the above relation 1,

T _S is the weight percent of the salicylate-based compound based on the total weight of the composition,

T _D is the weight % of the dibenzoylmethane-based compound based on the total weight of the composition,

T _A is the weight % of the acrylate-based compound based on the total weight of the composition,

However, T _D or T _A may be 0% by weight.]

When the above-mentioned range is satisfied, it is possible to realize a very stable formulation, and it is good to minimize the oily feeling caused by the organic sunscreen by showing excellent soft and light feeling of use.

In the cosmetic composition for sunscreen according to an embodiment of the present invention, the numerical range ([(T _S )/( _TS + T _D + T _A )] value) of Relation 1 is Specifically, it may be 0.35 to 0.55, and more specifically, it may be 0.45 to 0.55.

In the cosmetic composition for blocking UV rays according to an embodiment of the present invention, the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block includes a hydrophilic chain, particularly a polyalkylene oxide repeating unit such as ethylene oxide and propylene oxide. As an example, dimethicone/bis-isobutyl PEG-20 crosspolymer, PEG-12　dimethicone/PG-20 crosspolymer, and dimethicone/PEG-10/15 crosspolymer, etc. can In this case, it goes without saying that the cosmetic composition for sunscreen of the present invention may use one or a mixture of two or more of the siloxane-based elastomer polymers described above.

A siloxane-based elastomer polymer including a hydrophilic polyalkylene oxide block may exhibit similar behavior to an emulsifier by having both hydrophilic and hydrophobic groups in the molecule. With such structural features, it is possible to implement a stable formulation without the addition of an additional emulsifier.

In addition, the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block may be in the form of a paste dispersed in a dispersion medium.

As an example, the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block in the form of a paste is dimethicone/bis-isobutyl PPG-20 crosspolymer, PEG-12 dimethicone/PG-20 crosspolymer, and dimethyl At least one selected from Chicon/PEG-10/15 cross polymer, etc., is in the form of a paste uniformly dispersed in at least one dispersion medium selected from silicone oils such as dimethicone, cyclomethicone, phenyltrimethicone and cyclopentasiloxane. can

In this case, the silicone oil may be used in an amount of 1 to 500 parts by weight, specifically 10 to 200 parts by weight, more specifically 50 to 100 parts by weight, based on 10 parts by weight of the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block. weight can be used.

The cosmetic composition for sunscreen according to an embodiment of the present invention includes an oil phase including a siloxane-based elastomer polymer including a hydrophilic polyalkylene oxide block and an organic sunscreen, and an aqueous phase including water and polyhydric alcohol, and the oil phase part and the refractive index difference (ΔR) of the image-receiving part may be less than or equal to 0.05. In this case, the organic sunscreen agent may be a mixture of two or more selected from a salicylate-based compound, a dibenzoylmethane-based compound, and an acrylate-based compound.

Specifically, the cosmetic composition for sunscreen according to an embodiment of the present invention contains 5 to 30% by weight of the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block and 5 to 30% by weight of the organic sunscreen, based on the total weight of the composition. Oil phase comprising 20% by weight; and an aqueous phase comprising 20 to 60% by weight of the polyhydric alcohol and the remaining amount of water, wherein the difference in refractive index between the oil phase and the aqueous phase (ΔR) may be less than or equal to 0.05.

The cosmetic composition for UV protection according to an embodiment of the present invention improves the feeling of shine or dampness caused by the organic sunscreen by increasing the soft and light feeling of use.

For example, in terms of providing a more improved feeling of use, the cosmetic composition for UV protection includes 10 to 30% by weight of the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block and the organic UV light, based on the total weight of the composition. an oil phase comprising 10 to 20 wt% of a blocking agent; and an aqueous phase comprising 25 to 50% by weight of the polyhydric alcohol and the remaining amount of water.

As an example, in terms of feeling of use as well as in terms of implementing more improved transparency, the cosmetic composition for sunscreen is 15 to 30% by weight of the siloxane-based elastomer polymer including the hydrophilic polyalkylene oxide block, based on the total weight of the composition, and an oil phase comprising 10 to 20% by weight of the organic sunscreen; and an aqueous phase comprising 30 to 40% by weight of the polyhydric alcohol and the remaining amount of water. In this case, in the cosmetic composition for organic UV blocking, the difference in refractive index (ΔR) between the oil phase part and the aqueous phase part may be specifically in the range of 0.001 to 0.03, and more specifically in the range of 0.01 to 0.02.

In addition, the cosmetic composition for UV protection according to an embodiment of the present invention uses a siloxane-based elastomer polymer including a hydrophilic polyalkylene oxide block and at the same time adjusts the refractive index difference (ΔR) between the oil phase and the water phase, so that a liquid crystal material is not used. It is possible to realize a differentiated appearance by displaying various colors depending on the angle of light without the need.

For example, the cosmetic composition for blocking ultraviolet rays according to the present invention may have a light transmittance of 75 to 95% for a wavelength of 600 nm. That is, the cosmetic composition for blocking ultraviolet rays according to the present invention may have a differentiated appearance that has excellent transparency and changes color depending on the angle of light.

In addition, the cosmetic composition for sunscreen according to an embodiment of the present invention is evenly applied to the skin with excellent adhesion, and provides excellent coverage for skin requests, pores and wrinkles, thereby showing excellent skin texture improvement effect.

The polyhydric alcohol may be a component used to increase the refractive index of the aqueous phase, and examples thereof include glycerin, propylene glycol, butylene glycol, glycerin, erythritol, xylitol, maltitol glycerin, sorbitol, polyglycerin, polyethylene glycol, pentanediol. , isoprene glycol, and the like. In this case, it goes without saying that the cosmetic composition for sunscreen of the present invention may use one or a mixture of two or more of the polyhydric alcohols described above.

The cosmetic composition for blocking ultraviolet rays according to an embodiment of the present invention may further include a polar oil in the oil phase in order to reduce the difference in refractive index between the oil phase and the aqueous phase.

The polar oil may include one or more polar functional groups selected from a carboxy group (COO), a ketone group (CO) and a hydroxyl group (OH), for example, a triglyceride-based polar oil, an ester-based polar oil, etc. It may be one or two or more.

Examples of triglyceride-based polar oils include caprylic/capric/myristic/stearic triglyceride, caprylic/capric/myristic/stearic triglyceride, caprylic/capric/succinic triglyceride , caprylic/capric/stearic triglyceride, glyceryl trioctanoate, caprylic/capric triglyceride, butylene glycol dicaprylate/caprate, and trioctanoin.

Examples of the ester-based polar oil include isopropyl myristate, isopropyl palmitate, cetyl ethyl hexanoate, alkyl benzoate having 12 to 15 carbon atoms, dicaprylyl carbonate, pentaerythrityl tetraethylhexanoate, pentaerythrityl tetraisostearate and diisostearyl malate; and the like.

At this time, the amount of the polar oil may be appropriately adjusted according to the purpose, but may be used in an amount of 1 to 20% by weight based on the total weight of the composition, specifically 3 to 15% by weight, more specifically 5 to 10% by weight. % can be used.

The cosmetic composition for blocking ultraviolet rays according to an embodiment of the present invention may further include a water-soluble ultraviolet absorber in the aqueous phase in order to reduce the difference in refractive index between the oil phase and the aqueous phase.

The water-soluble UV absorber is not limited as long as it is a conventional component with high solubility in water without causing a problem in the stability of the formulation, and examples include 2-phenylbenzimidazole-5-sulfonic acid or a derivative thereof; 2-hydroxy-4-methoxybenzophenonesulfonic acid or derivatives thereof; sulfonic acid of 3-benzylidene camphor or derivatives thereof; and the like. In this case, the derivative may be a salt of sulfonic acid, specifically, an alkali metal, alkaline earth metal, ammonium, or an alkylammonium salt having 1 to 7 carbon atoms.

In this case, the amount of the water-soluble ultraviolet absorber may be appropriately adjusted according to the purpose, but may be used in an amount of 0.1 to 10% by weight based on the total weight of the composition, specifically 0.5 to 5% by weight, and more specifically 0.5 to 3% by weight. % by weight. In addition, when using the water-soluble ultraviolet absorber, the pH of the composition is preferably in the range of 6.5 to 7.5.

The cosmetic composition for sunscreen according to an embodiment of the present invention may further include one or more additives selected from moisturizing ingredients, oils, pH adjusters, discoloration inhibitors, pigments, fragrances, preservatives and soothing accelerators according to the purpose. In this case, the additive may be included in an amount of 0.01 to 5% by weight, respectively, based on the total weight of the composition, but is not limited thereto.

The cosmetic composition for sunscreen according to an embodiment of the present invention is formulated in a water-in-oil type.

For example, the water-in-oil type cosmetic composition for sunscreen may be formulated as a sunscreen or makeup primer having a transparent or translucent appearance.

As an example, the water-in-oil type UV blocking cosmetic composition may be formulated as a makeup base or foundation having an opaque appearance by further including a colorant such as a lake, a colored pigment, and a pearlescent pigment.

In addition, the cosmetic composition for sunscreen according to an embodiment of the present invention is applicable to a brush, a puff, an integrated puff, a roll-on, a roller or a sponge tip type applicator.

Hereinafter, the cosmetic composition of the vigel type according to an example of the present invention will be described in more detail through examples. However, the following examples are only a reference for describing the present invention in detail, and the present invention is not limited thereto, and may be implemented in various forms. In addition, the unit of components not specifically described in the specification may be g or weight % based on the total composition.

(Assessment Methods)

1. Refractive Index

For the refractive index of each sample (Example and Comparative Example), a value measured using a refractometer (ATAGO, Multi-Wavelength Abbe Refractometer DR-A1) was adopted, and the results are shown in Table 1 below.

2. Formulation stability

The formulation stability of each sample (Example and Comparative Example) was compared. At this time, the formulation stability is a refrigerated thermostat (4±2℃), a freezing thermostat (-20±2℃), a high temperature thermostat (45±2℃) and a cycle chamber (Freeze-Thaw Chamber, -20℃ to 45℃ 1 cycle once a day), and visually observed whether phase separation of each sample was performed at intervals of 1 week, and the results are shown in Table 2 below. In addition, FIG. 1 shows the results of observing the appearance characteristics of Example 1.

3. Sensory evaluation A

The usability of each sample (Example and Comparative Example) was compared. Through a panel test targeting 50 women aged 20-40 years, each feeling of use (adhesion, spreadability, oily feeling) and appearance favorableness were evaluated and compared. At this time, each item was evaluated on a scale of 1 to 10, and the higher the score, the stronger the attribute of each item. For example, when the adhesion is 10 points, it means the best adhesion, and when the oil feeling is 10 points, it means that the feeling of use is not good because the oily feeling is the strongest.

The results are shown in Table 3 below.

4. Sensory evaluation B

The effects of each sample (Example and Comparative Example) for covering skin irregularities, pores, and fine lines were compared. Each sample was evaluated by dividing it into a case where it was applied by hand and a case where it was applied using a brush. At this time, each item was evaluated on a scale of 1 to 10, and the higher the score, the stronger the attribute of each item.

(Examples 1 to 4)

Using the ingredients in Table 1 below, a cosmetic composition for UV protection was prepared by the following method.

(1) All components of the oil phase were mixed and dissolved by heating to 95°C.

(2) All the components of the aqueous phase were mixed and dissolved.

(3) While putting the water phase in the oil phase, it was dispersed with a homogenizer to prepare a cosmetic composition for UV protection.

(Comparative Example 1)

Using the ingredients in Table 1 below, a cosmetic composition for UV protection was prepared in the same manner as in the above Example.

As shown in Table 2 and FIG. 1, it was confirmed that a very stable formulation could be implemented according to the present invention.

On the other hand, in the case of Comparative Example 1, it was maintained somewhat stable at a low temperature, but phase separation was observed rapidly under the temperature condition above room temperature, confirming that the formulation was poor in the stability over time.

As shown in Table 3, it was confirmed that, according to the present invention, it was possible to provide soft and light spreadability due to excellent adhesion and spreadability when applied to the skin. Moreover, it was confirmed that it provided a significantly lowered oily feeling compared to Comparative Example 1. In addition, according to the present invention, it was confirmed that the appearance favorability was very good by realizing a differentiated appearance capable of displaying various colors depending on the angle of light.

On the other hand, in the case of Comparative Example 1, the stability over time of the formulation was poor, so it was possible to confirm the phase separation phenomenon after several hours. In addition, satisfaction with the feeling of use was also low.

As shown in Table 4, according to the present invention, it was confirmed that the effect was excellent for covering skin irregularities, pores, and fine lines, and when using a brush rather than applying by hand, these effects were somewhat improved. It was confirmed that it is possible. That is, if the cosmetic composition for sunscreen according to the present invention is applied to a brush-type applicator, it can be said that the effect is further amplified.

As described above, the present invention has been described by specific matters and limited examples, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above examples, and the field to which the present invention belongs Various modifications and variations are possible from these descriptions by those of ordinary skill in the art.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims described below, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

Claims (11)

It contains a siloxane-based elastomer polymer containing a hydrophilic polyalkylene oxide block and an organic sunscreen,
The organic sunscreen includes a salicylate-based compound, a dibenzoylmethane-based compound, and an acrylate-based compound,
A cosmetic composition for sunscreen that satisfies the following Relational Equation 1.
[Relational Expression 1]
0.3 ≤ [(T _S )/(T _S + T _D + T _A )] ≤ 0.6
[In the above relation 1,
T _S is the weight percent of the salicylate-based compound based on the total weight of the composition,
T _D is the weight % of the dibenzoylmethane-based compound based on the total weight of the composition,
T _A is the weight percent of the acrylate-based compound based on the total weight of the composition.] delete The method of claim 1,
The organic sunscreen is
a salicylate-based compound selected from ethylhexyl salicylate, TA-salicylate, isopropylbenzyl salicylate and homosalate;
4-methyldibenzoylmethane, 2-methyldibenzoylmethane, 4-isopropyldibenzoylmethane, 4-tert-butyldibenzoylmethane, 2,4-dimethyldibenzoylmethane, 2,5-dimethyldibenzoylmethane, 4 ,4'-diisopropylbenzoylmethane, 4-tert-butyl-4'-methoxydibenzoylmethane, 4,4'-diisopropylbenzoylmethane, 2-methyl-5-isopropyl-4'-methoxydibenzoyl a dibenzoylmethane-based compound selected from methane and 2-methyl-5-tert-butyl-4'-methoxydibenzoylmethane; and
An acrylate-based compound selected from octocrylene and polyacrylamidomethyl benzylidene camphor; a cosmetic composition for UV protection. The method of claim 1,
The siloxane-based elastomer polymer,
A cosmetic composition for UV protection that is selected from dimethicone/bis-isobutyl PG-20 crosspolymer, PG-12 dimethicone/PG-20 crosspolymer, and dimethicone/PEG-10/15 crosspolymer. The method of claim 1,
The composition is
an oil phase comprising a siloxane-based elastomer polymer comprising a hydrophilic polyalkylene oxide block and an organic sunscreen; and
A water phase part comprising water and a polyhydric alcohol;
A cosmetic composition for UV blocking wherein the difference in refractive index between the oil phase part and the aqueous phase part is 0.05 or less. 6. The method of claim 5,
The composition is
Based on the total weight of the composition,
an oil phase comprising 5 to 30% by weight of the siloxane-based elastomer polymer and 5 to 20% by weight of the organic sunscreen; and
A cosmetic composition for UV protection comprising; an aqueous phase comprising 20 to 60% by weight of the polyhydric alcohol and the remaining amount of water. 6. The method of claim 5,
In the upper part,
A cosmetic composition for sunscreen further comprising a polar oil. 6. The method of claim 5,
In the award section,
A cosmetic composition for UV protection further comprising a water-soluble UV absorber. The method of claim 1,
The siloxane-based elastomer polymer,
A cosmetic composition for UV protection in the form of a paste dispersed in a dispersion medium. 10. The method of claim 9,
The dispersion medium is
A cosmetic composition for sunscreen that is selected from dimethicone, cyclomethicone, phenyltrimethicone and cyclopentasiloxane. 11. The method according to any one of claims 1 and 3 to 10,
The composition is
A cosmetic composition for UV protection that is applied to a brush, puff, puff-integrated, roll-on, roller or sponge tip type applicator.

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