WO2019098637A2 - Water-in-silicone type cosmetic composition comprising organic sunscreen agent - Google Patents

Abstract

The present invention relates to a water-in-silicone type cosmetic composition comprising an organic sunscreen agent. The present invention can provide a water-in-silicone type cosmetic composition comprising bis-ethylhexyloxyphenol methoxyphenyl triazine, which was previously not applicable to silicone formulations due to solubility problems.

Description

A cosmetic composition of the silicone water-repellent type containing an organic sunscreen agent

The present invention relates to a cosmetic composition of the silicone water-repellent type comprising an organic UV-blocking agent.

Ultraviolet (UV) is a major cause of skin cancer, causing erythema, edema, and freckles in the skin and ultimately causing skin cancer. Many studies on various skin diseases caused by ultraviolet rays are under way. Generally, ultraviolet rays are classified into UV-C wavelengths of 240 to 280 nm, UV-B wavelengths of 280 to 320 nm, and UV-A wavelengths of 320 to 400 nm, depending on their wavelengths. UV-C penetrates into the epidermis of the skin and causes erythema, freckles and edema. UV-A penetrates into the skin's dermis and forms wrinkles and melanin To promote skin aging and skin irritation, and to cause skin cancer.

As the ultraviolet ray irradiation amount of the surface due to the ozone layer breakage is increased, the market for the UV ray-blocking product is growing year by year, and the consumer's needs for the cosmetic composition for protecting the UV ray over the entire wavelength range is increasing to be.

In general, a cosmetic composition for ultraviolet ray shielding has been proposed as a water-in-oil type in which oil is traumatized or an oil-in-water type in which water is traumatized.

In case of O / W type, there is a good feeling of feeling when applied to the skin as compared with the product of W / O type, but it still has the disadvantage that it is easily washed out by sweat and water even though it continues to improve the water resistance , There is a disadvantage that the persistence of the ultraviolet blocking effect is remarkably deteriorated.

On the other hand, the W / O type has a longer persistence than the O / W type but has a disadvantage that the feeling of use is heavy and sticky, which is not related to the high viscosity of a general W / O type product. In addition, the W / O type product has a disadvantage in that the emulsion stability is lower than that of the O / W type, since the product of the W / O type is made to have a high viscosity by raising the ratio of the internal phase water phase to lightly control the feeling. On the other hand, W / O type products having a low viscosity have a problem that the stability of the product deteriorates due to the separation of the water phase from the internal phase and the external phase (oil phase) during long-term storage in a container during circulation. Therefore, the viscosity is increased to increase the stability and the viscosity is increased, so that the feeling of use becomes heavy and sticky.

On the other hand, most organic UV blocking agents have poor stability to heat and light. Especially, bis-ethylhexyloxyphenol methoxyphenyltriazine has poor solubility in solvents and dissolves in oil having high polarity such as alkyl benzoate. I had to apply it to my daily life. In order to solve such problems, composite particles containing an organic UV-blocking agent such as bis-ethylhexyloxyphenol methoxyphenyltriazine and the like have been proposed, but the problem of solubility has not been completely solved.

Accordingly, the present inventors have focused on the problems of the conventional cosmetic composition for ultraviolet ray shielding, proposed a cosmetic composition of silicone water-repellent type which has water resistance and can impart both light adhesion and silky feel as well as good adhesion strength Respectively. As a result, it has been confirmed that a cosmetic composition of the silicone water-type type which can stably contain bis-ethylhexyloxyphenol methoxyphenyltriazine, which was not applicable to the silicone-based trauma due to the solubility problem, Completed.

It is an object of the present invention to ensure a stable formulation comprising bis-ethylhexyloxyphenol methoxyphenyltriazine, which was not applicable to silicone-based trauma due to solubility problems. That is, an object of the present invention is to provide a stable silicone heavy type cosmetic composition comprising bis-ethylhexyloxyphenol methoxyphenyltriazine.

It is still another object of the present invention to provide a cosmetic composition of the silicone water-repellent type capable of imparting synergy to an ultraviolet shielding effect by simultaneously applying the organic UV-blocking agent to the inner and outer surfaces.

It is still another object of the present invention to provide a cosmetic composition of silicone water-repellent type which is capable of preventing persistent ultraviolet ray blocking effect and of preventing skin damage from ultraviolet ray by enhancing persistence and water resistance by improved adhesion to skin.

In order to achieve the above object, one aspect of the present invention provides a cosmetic composition of the silicone water-repellent type comprising microparticles comprising bis-ethylhexyloxyphenol methoxyphenyltriazine.

At this time, the cosmetic composition of the silicone water-repellent type is a cosmetic composition for blocking ultraviolet rays.

In the cosmetic composition of the silicone heavy water type according to an embodiment of the present invention, the microparticles contain bis-ethylhexyloxyphenol methoxyphenyltriazine in an amount of 20% by weight or more based on the total weight of the microparticles Lt; / RTI >

In the cosmetic composition of the silicone water type according to an embodiment of the present invention, the microparticles may be hemispherical.

In the cosmetic composition of the silicone water-repellent type according to an embodiment of the present invention, the microparticles may have an average diameter ranging from 1 to 10 mu m.

The cosmetic composition of the silicone water type according to an embodiment of the present invention may further include a phenylbenzimidazole-based compound and a cyclodextrin-based compound in the aqueous phase.

In the cosmetic composition of silicone water type according to an embodiment of the present invention, the phenylbenzimidazole-based compound and the cyclodextrin-based compound may be contained in a weight ratio of 1: 0.1 to 1:10.

The pH of the cosmetic composition of the silicone heavy water type according to an embodiment of the present invention may be at least 7.5, and in particular, the silicone heavy water type cosmetic composition comprising the phenylbenzimidazole compound and the cyclodextrin compound has a pH , It is possible to realize the boosting effect in the SPF as well as the improved formulation stability.

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

[Relation 1]

0.1? B / A? 1.0

[In the above formula 1,

A is the amount (g) of bis-ethylhexyloxyphenol methoxyphenyltriazine used,

And B is an amount (g) of the phenylbenzimidazole-based compound]

The cosmetic composition of the silicone water type according to an embodiment of the present invention comprises a polar oil containing at least one polar functional group selected from a carboxyl group (COO), a ketone group (CO) and a hydroxyl group (OH) , And 0 to 1% by weight, based on the total weight of the composition.

In the cosmetic composition of the silicone water type according to an embodiment of the present invention, the composition may further comprise a PEG-containing silicone surfactant.

The cosmetic composition of the silicone water type according to an embodiment of the present invention may contain 0.1 to 10% by weight of the bis-ethylhexyloxyphenol methoxyphenyltriazine based on the total weight of the composition.

Also, the cosmetic composition of the silicone water type according to an embodiment of the present invention contains 15 wt% or less of an organic UV-blocking agent including bis-ethylhexyloxyphenol methoxyphenyltriazine, The ultraviolet barrier index of the composition may be at least 30.

[Formula 1]

UV cutoff index = (minimum erythema amount of the skin part applied with the cosmetic composition of the silicone water type) / (minimum erythema amount of the skin part not coated with the silicone water type cosmetic composition)

According to the present invention, an insoluble silicone water type formulation using bis-ethylhexyloxyphenol methoxyphenyltriazine, which was not applicable to silicone formulation due to solubility problems, can be secured.

According to the present invention, it is also possible to provide a very stable silicone water type cosmetic composition comprising bis-ethylhexyloxyphenol methoxyphenyltriazine even though substantially no polar oil is used.

In addition, according to the present invention, it is possible to realize a stable formulation in which an organic UV-blocking agent is stably contained in each of water-in-oil phase and external oil phase (silicone phase), thereby giving synergy to ultraviolet blocking effect, A, UV B, UV C).

Further, according to the present invention, it is possible to provide a silicone water-type cosmetic composition which imparts a feeling of lightness and refreshing feeling at the same time, imparts excellent water resistance to the skin, and has high durability against skin, have.

In short, according to the present invention, it is possible to provide a silicone water-type cosmetic composition for ultraviolet screening which is excellent in water resistance and has an improved ultraviolet shielding effect by solving the problem of solubility and formulation stability of bis-ethylhexyloxyphenol methoxyphenyltriazine have.

1 (a) is an SEM photograph of a microparticle of the present invention (scale bar 20 m),

Fig. 1 (b) is a SEM photograph of the microparticles of the present invention (scale bar 2 m)

2 (a) is a photograph (optical 200 times) of the microparticles of the present invention dispersed in butylene glycol (BG) by an optical microscope,

2 (b) is a photograph (micrograph of polarized light 200 times) of the microparticles of the present invention dispersed in butylene glycol (BG) by an optical microscope,

FIG. 2 (c) is a photograph (optical 200 times) of the microparticles of the present invention dispersed in phenyltrimethicone observed with an optical microscope,

2 (d) is a micrograph of the microparticles of the present invention dispersed in phenyltrimethicone (200-fold polarized light)

3 (a) is a photograph (optical 200 times) of the cosmetic composition of Example 1 according to the present invention observed with an optical microscope,

FIG. 3 (b) is a photograph (200-fold polarized light) of the cosmetic composition of Example 1 according to the present invention observed under an optical microscope,

4 (a) is a photograph (optical 200 times) of the cosmetic composition of Example 2 according to the present invention observed with an optical microscope,

4 (b) is a photograph (200-fold polarized light) of the cosmetic composition of Example 2 according to the present invention observed under an optical microscope,

5 (a) is a photograph (optical 200 times) of the cosmetic composition of Comparative Example 1 according to the present invention observed with an optical microscope,

FIG. 5 (b) is a photograph (optical spectrum 200 times) of the cosmetic composition of Comparative Example 1 according to the present invention observed with an optical microscope,

6 (a) is a photograph (optical 200 times) of the cosmetic composition of Comparative Example 2 according to the present invention observed with an optical microscope,

FIG. 6 (b) is a photograph (200-fold polarized light) of the cosmetic composition of Comparative Example 2 according to the present invention observed under an optical microscope,

7 (a) is a photograph (optical 200 times) of the cosmetic composition of Example 3 according to the present invention observed with an optical microscope,

FIG. 7 (b) is a photograph (200-fold polarized light) of the cosmetic composition of Example 3 according to the present invention observed under an optical microscope,

Fig. 8 is a graph showing the result of evaluation of feeling on application of each sample of Example 3 and the w / s cream control group as a result of sensory evaluation according to the present invention,

9 shows the result of evaluation of feeling after application of each sample of Example 3 and w / s cream control group as a result of sensory evaluation according to the present invention,

Fig. 10 shows a total sensory evaluation result according to the present invention.

The silicone water-containing cosmetic composition containing the organic UV-blocking agent according to the present invention will be described below. However, unless otherwise defined in the technical terms and scientific terms used herein, it is to be understood that those skilled in the art And a description of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted in the following description.

As used herein, the term " silicone heavy water type " means an emulsion having a continuous phase of an oil containing silicone oil as its main component and having a dispersed phase containing water therein. That is, the silicone heavy water type cosmetic composition means an emulsion in which an inner aqueous phase containing water is dispersed on an outer oil phase containing a silicone oil.

The term " outer phase " as used herein means a continuous phase containing silicone oil as a main component and may have the same meaning as a traumatic phase or a silicone phase, and " inner phase " means a dispersed phase containing water , And can be synonymous with an award.

As used herein, the term " Hydrophilic Lipophilic Balance (HLB) " means an indicator of the balance between the hydrophilic group and the lipophilic group of the surfactant. At this time, the HLB can be represented by a numerical value of 0 to 20, and when its numerical value is low, it shows lipophilic characteristics. Conversely, when its value is high, it shows hydrophilic characteristics.

In general, bis-ethylhexyloxyphenol methoxyphenyltriazine has to be dissolved in an oil having a high polarity such as an alkylbenzoate to be applied to an oil phase, and the solubility in a silicone oil is very low, Even if applied, the ultraviolet blocking effect was insignificant.

Accordingly, the present inventors have solved the problems of bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT), which has difficulty in application due to its solubility problem despite having a high ultraviolet shielding effect, And the methods applicable to the formulations of the embodiments have been deepened.

As a result, the above-mentioned problem was solved by using microparticles containing bis-ethylhexyloxyphenol methoxyphenyltriazine, and at the same time, while the silicone was a traumatic formulation, a stable formulation was realized and bis-ethylhexyloxy It is possible to provide a silicone water-type cosmetic composition capable of solving the problem of precipitation of phenol methoxyphenyltriazine, thereby completing the present invention.

According to the present invention, it is possible to provide a silicone water-type cosmetic composition capable of uniformly dispersing bis-ethylhexyloxyphenol methoxyphenyltriazine in a formulation and effectively providing an SPF boosting effect by scattering ultraviolet rays have.

On the other hand, in a conventional emulsion formulation, it is difficult to coexist at the same time with a feeling of feeling that is light and non-sticky and a feeling of providing a residual feeling and a thick feeling with excellent adhesion. However, it is noted that the cosmetic composition of the silicone water-repellent type according to the present invention is a formulation having an optimal formulation capable of simultaneously providing a feeling of use thereof, and provides a feeling of use different from that of a conventional emulsion formulation.

That is, the present invention provides a new form of formulation in which bis-ethylhexyloxyphenol methoxyphenyltriazine can be used stably in various silicone formulations.

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

A cosmetic composition of the silicone water type according to one aspect of the present invention may comprise microparticles comprising bis-ethylhexyloxyphenol methoxyphenyltriazine.

Although the cosmetic composition of the silicone heavy water type according to an embodiment of the present invention uses bis-ethylhexyloxyphenol methoxyphenyltriazine having a very low solubility in silicone oil, the surface of the microparticles or the external surface of the composition The problem of solubility of bis-ethylhexyloxyphenol methoxyphenyltriazine was solved by effectively suppressing the phenomenon of precipitation of bis-ethylhexyloxyphenol methoxyphenyltriazine into crystals.

Specifically, in the cosmetic composition of the silicone water-repellent type according to an embodiment of the present invention, the microparticles contain bis-ethylhexyloxyphenol methoxyphenyltriazine in an amount of 20% by weight or more based on the total weight of the microparticles It is possible that it is doing. At this time, the microparticles may contain only bis-ethylhexyloxyphenol methoxyphenyltriazine alone in the particles.

Although the microparticles contain the above-mentioned content of bis-ethylhexyloxyphenol methoxyphenyltriazine, they have excellent optical stability and are stably dispersed in the silicone trauma to realize an excellent ultraviolet blocking effect.

More specifically, the microparticles may have a hemispherical particle shape.

The cosmetic composition of the silicone water type according to an embodiment of the present invention includes a microparticle having a hemispherical particle shape, thereby providing a feeling of use differentiated from the spherical microparticle, providing superior endurance with improved adhesion, And the total penetration volume is excellent in the ability to absorb sebum.

In the cosmetic composition of silicone water type according to an embodiment of the present invention, the average diameter of the microparticles may be in the range of 1 to 10 mu m, but is not limited thereto. In this case, when hemispherical microparticles are employed, the spherical microparticles are provided with a distinctive feeling of use, and the ultraviolet ray shielding effect is enhanced by imparting excellent endurance with high adhesion.

For example, the microparticles may be stably dispersed on the silicon surface, and the microparticles may preferably have an average diameter in the range of 1 to 8 mu m, more preferably in the range of 2 to 6 mu m But is not limited thereto.

In the cosmetic composition of the silicone water-repellent type according to an embodiment of the present invention, the microparticles may contain bis-ethylhexyloxyphenol methoxyphenyltriazine homogeneously in the inner matrix of the polymer particles. At this time, the homogeneity may mean that the bis-ethylhexyloxyphenol methoxyphenyltriazine is uniformly mixed in the polymer matrix in a molecular manner.

For example, the microparticles may be prepared by dispersing and polymerizing using an oil phase simultaneously containing bis-ethylhexyloxyphenol methoxyphenyltriazine, a polymerizable monomer and a polyfunctional crosslinking monomer. That is, the microparticles may be such that bis-ethylhexyloxyphenol methoxyphenyl triazine is homogeneously contained in the internal matrix of the polymer particles.

For example, the microparticles may be hemispherical particles.

The present inventors have found that a hemispherical shape can be specifically formed according to the use amount of bis-ethylhexyloxyphenol methoxyphenyltriazine, which is an organic UV-blocking agent, in the dispersion polymerization for producing microparticles alone . At this time, the microparticles may contain 20 wt% or more of bis-ethylhexyloxyphenol methoxyphenyltriazine as described above. The microparticles prepared by the dispersion polymerization may contain 24 to 30% by weight of the bis-ethylhexyloxyphenol methoxyphenyltriazine, more specifically 24.5 to 28.5% by weight have.

When the above-mentioned range is satisfied, hemispherical microparticles can be formed to improve the desired effect, but the present invention is not limited thereto.

The microparticles prepared by the dispersion polymerization may be used in an amount of 0.1 to 100 parts by weight based on 100 parts by weight of the polymerizable monomer, and the amount of the microparticles may vary depending on the purpose. Needless to say, the amount of bis-ethylhexyloxyphenol methoxyphenyltriazine to be used can be appropriately adjusted for the particle shape to be implemented.

For example, the polyfunctional crosslinking monomer may be used in an amount of 1 to 50 parts by weight, more specifically 1 to 25 parts by weight, based on 100 parts by weight of the polymerizable monomer, but is not limited thereto.

The polymerizable monomer is not limited as long as it is a radically polymerizable monomer capable of copolymerizing with a polyfunctional crosslinking monomer described later, and specifically, it may be a radically polymerizable monomer containing one ethylene group. For example, aromatic vinyl monomers such as styrene, methylstyrene, ethylstyrene, fluorostyrene, chlorostyrene, and vinyltoluene; Acrylates such as methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, octyl (meth) acrylate, stearyl Acrylate-based vinyl monomers; And the like. In the present invention, the above-mentioned one or two or more radically polymerizable monomers may be used.

The multifunctional crosslinking monomer is not limited as long as it is a monomer capable of crosslinking the polymerizable monomer, specifically, it may be a crosslinking monomer containing at least two ethylene groups. For example, there can be mentioned, for example, divinylbenzene, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, trimethylene propane trimethacrylate, 1,3-butanediol dimethacrylate, Hexanediol dimethacrylate, tri (meth) acrylate, and the like. In the present invention, one or more of the above-mentioned polyfunctional crosslinking monomers may be used.

The cosmetic composition of the silicone water type according to an embodiment of the present invention may contain the microparticles in an amount of 1 to 35% by weight, specifically 5 to 30% by weight, more specifically, By weight and 5 to 15% by weight.

That is, the cosmetic composition of the silicone water type may include bis-ethylhexyloxyphenol methoxyphenyltriazine in a maximum amount of 10% by weight based on the total weight of the composition.

The cosmetic composition of the silicone water type according to one embodiment of the present invention may further comprise a phenylbenzimidazole-based compound and a cyclodextrin-based compound in the aqueous phase.

The phenylbenzimidazole-based compound is one of the organic UV-ray blocking agents contained in the water phase. In a typical O / W formulation, the pH of the formulation is adjusted to an appropriate range to inhibit crystal precipitation. On the other hand, in the W / S formulation based on silicon, the phenylbenzimidazole-based compound precipitated and thus it was difficult to apply to the aqueous phase.

Despite such characteristics, the cosmetic composition of the silicone water-repellent type according to one embodiment of the present invention effectively inhibits the problem (for example, crystal precipitation) by using the combination of the above-mentioned microparticles and the phenylbenzimidazole-based compound Respectively. In addition, the simultaneous use of a cyclodextrin compound can more effectively inhibit crystal precipitation, and even if a phenylbenzimidazole-based compound is partially precipitated in an aqueous phase, it can be reliably reused in an aqueous phase.

For example, the phenylbenzimidazole-based compound and the cyclodextrin-based compound may be contained in a weight ratio of 1: 0.1 to 1:10.

For example, the phenylbenzimidazole-based compound and the cyclodextrin-based compound may be contained in a weight ratio of 1: 1 to 1: 2, more specifically, 1: 1.5 to 1: 2, It is preferable from the viewpoint that the formulation stability can be further improved as compared with the case where it is satisfied.

For example, in order to ensure a more stable formulation, the pH of the composition may be at least 7.5, and more preferably 7.5 to 9, more specifically 7.5 to 8.5.

For example, when the composition satisfies the above-mentioned weight ratio of the phenylbenzimidazole-based compound and the cyclodextrin-based compound and satisfies the pH range of 7.5 or more, it is possible to suppress the crystal precipitation of the phenylbenzimidazole- In view of being able to plan.

The phenylbenzimidazole-based compound is one of water-soluble organic UV-blocking agents, and examples thereof include phenylbenzimidazole sulfonic acid, potassium phenylbenzimidazole sulfonate, sodium phenylbenzimidazole sulfonate Sodium Phenylbenzimidazole Sulfonate) and TEA-Phenylbenzimidazole Sulfonate (TEA-Phenylbenzimidazole Sulfonate). In the present invention, the above-mentioned one or two or more phenylbenzimidazole-based compounds may be used, but the present invention is not limited thereto.

In this case, the phenylbenzimidazole-based compound may be contained in an amount of 0.1 to 10 wt% based on the total weight of the composition, specifically 0.5 to 4.5 wt% %, More specifically 0.5 to 2.5% by weight, based on the total weight of the composition.

The cyclodextrin-based compound prevents crystallization of the phenylbenzimidazole-based compound and provides for improved formulation stability. Examples thereof include alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, hydroxypropyl beta-cyclodextrin , Carboxymethyl cyclodextrin, methyl carboxymethyl cyclodextrin, aminocyclodextrin, branched cyclodextrin with addition of glucose, and cyclodextrin polymers. In the present invention, the above-mentioned one or more cyclodextrin-based compounds may be used, but the present invention is not limited thereto.

As described above, in the silicone-type water-based cosmetic composition according to one embodiment of the present invention, the phenylbenzimidazole-based compound and the cyclodextrin-based compound are included in the aqueous phase. At this time, the cyclodextrin compound effectively inhibits crystal precipitation of the phenylbenzimidazole-based compound contained in the aqueous phase, and when satisfying a predetermined weight ratio and satisfying the optimum pH range of the composition, the phenylbenzimidazole-based compound It is possible to completely inhibit crystallization of the compound and provide a more stable formulation.

The amount of the bis-ethylhexyloxyphenol methoxyphenyltriazine and the phenylbenzimidazole-based compound used in the silicone-type water-based cosmetic composition according to an embodiment of the present invention may satisfy the following relational expression (1).

[Relation 1]

0.1? B / A? 1.0

[In the above formula 1,

A is the amount (g) of bis-ethylhexyloxyphenol methoxyphenyltriazine used,

And B is an amount (g) of the phenylbenzimidazole-based compound]

When the above formula 1 is satisfied, it is possible to provide a synergistic effect on the SPF (Sun Protection Factor) index of the composition. Specifically, the amount of the bis-ethylhexyloxyphenol methoxyphenyltriazine and phenylbenzimidazole- (B / A) of 0.3 to 0.8 may be satisfied. When such a relationship is satisfied, organic-based ultraviolet screening agents (i.e., bis-ethylhexyloxyphenol methoxyphenyltriazine and phenylbenzimidazole-based compounds) stably dispersed and dissolved in both the inner aqueous phase and the outer phase of the formulation are simultaneously (UV A, UV B, and UV C) can be realized by introducing the ultraviolet rays.

Also, the cosmetic composition of the silicone water type according to an embodiment of the present invention is characterized in that it contains substantially no polar oil or a trace amount thereof for dissolving bis-ethylhexyloxyphenol methoxyphenyltriazine.

That is, according to the present invention, it is possible to overcome the solubility of bis-ethylhexyloxyphenol methoxyphenyltriazine even though a polar oil is not used or a trace amount of polar oil is used, and a highly stable silicone water type cosmetic composition can be provided .

In one example, the polar oil includes at least one polar functional group selected from a carboxyl group (COO), a ketone group (CO) and a hydroxyl group (OH), and examples thereof include cetyl ethylhexanoate, octyldodecyl myristate, Di-C 12-13 alkyl maleate, pentaerythritol tetraisostearate, pentaerythritol tetraethyl hexanoate, diisostearyl maleate, isopropyl palmitate, C 12-15 alkyl benzoate, dicaprylic carbonate, Dicaprylyl ether, 2-octyldodecanol, and the like.

For example, the polar oil may be included in an amount of 0 to 1% by weight based on the total weight of the composition, specifically 0 to 0.5% by weight, and more specifically 0 to 0.1% by weight. It is not.

The cosmetic composition of the silicone water type according to one embodiment of the present invention is characterized in that the microparticles containing bis-ethylhexyloxyphenol methoxyphenyltriazine are dispersed stably and at the same time, bis-ethylhexyl From the viewpoint of not generating oxyphenol methoxyphenyltriazine, it is preferable to use a PEG-containing silicone surfactant.

Examples of the PEG-containing silicone surfactant include PEG / PPG-18/18 dimethicone, PEG-30Dipolyhydroxystearate, PEG-7Dimethicone, PEG-10 Dimethicone, PEG-10 Dimethicone, Cyclopentasiloxane / PEG.PPG-19.19 Dimecicone / PEG.PPG-19.19 Dimethicone, Sorbitan Isostearate ), Lauryl PEG.PPG-18.18 methicone, cetyl PEG.PPG-10.1 dimethicone, lauryl PEG-9 polydimethylsiloxy ethyl dimethicone And Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone. In the present invention, one or more of the exemplified PEG-containing silicone surfactants may be used, but the present invention is not limited thereto.

More specifically, the PEG-containing silicone surfactant may be a nonionic surfactant having a hydrophilic-lipophilic group balance (HLB) of 1 to 6.

In this case, the amount of the PEG-containing silicone surfactant used in the silicone-type water-based cosmetic composition according to an embodiment of the present invention may be appropriately adjusted depending on the kind and content of the silicone oil.

For example, 1 to 10% by weight of a PEG-containing silicone surfactant may be used based on the total weight of the composition, specifically 1 to 8% by weight, more specifically 3 to 6% by weight of a PEG- But is not limited thereto.

The cosmetic composition of the silicone water type according to an embodiment of the present invention may contain 1 to 4.5% by weight of the bis-ethylhexyloxyphenol methoxyphenyltriazine based on the total weight of the composition, By weight, and 1 to 4% by weight, more specifically, 1.5 to 3.5% by weight.

The cosmetic composition of the silicone water type according to one embodiment of the present invention contains not more than 15% by weight of an organic UV-blocking agent comprising bis-ethylhexyloxyphenol methoxyphenyltriazine, The UV blocking index of the composition may be at least 30.

[Formula 1]

UV cutoff index = (minimum erythema amount of the skin part applied with the cosmetic composition of the silicone water type) / (minimum erythema amount of the skin part not coated with the silicone water type cosmetic composition)

For example, the cosmetic composition of the silicone heavy water type according to the present invention comprises 4.5 wt% of the maximum bis-ethylhexyloxyphenol methoxyphenyltriazine, and the organic base including the bis-ethylhexyloxyphenol methoxyphenyltriazine The ultraviolet screening index of the composition calculated by the formula 1 may be 10 to 50. Specifically, the ultraviolet screening index of the composition may be 20 to 50, more specifically, The ultraviolet barrier index of the composition may be from 30 to 50.

The cosmetic composition of the silicone heavy water type according to an embodiment of the present invention may include at least one member selected from the group consisting of dimethicone, cyclomethicone, phenyltrimethicone, polydimethylsiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, Dodecamethylcyclohexasiloxane, tetradecamethylhexasiloxane, octamethyltrisiloxane, and the like, and the like.

For example, the silicone oil may be contained in an amount of 15 to 60% by weight based on the total weight of the composition, specifically 15 to 50% by weight, and more specifically 20 to 40% by weight. It is not.

In one example, the composition comprises a balance of water.

In addition, the cosmetic composition of the silicone water type according to an embodiment of the present invention may further include an organic UV-blocking agent and an inorganic UV-blocking agent, depending on the purpose, and may further contain a moisturizing component, an aging agent, a pH adjusting agent, Flavoring agents, preservatives, soothing accelerators, and the like. At this time, the organic UV blocking agent, the inorganic UV blocking agent and the additives may be included in the range of 0.01 to 20% by weight based on the total weight of the composition, but the present invention is not limited thereto.

Hereinafter, the cosmetic composition of the silicone water-repellent type including the organic ultraviolet screening agent according to an example of the present invention will be described in more detail with reference to examples. It should be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. In addition, the unit of the component not specifically described in the specification may be g or% by weight based on the total composition.

(Assessment Methods)

1. Evaluation of Sun Protection Factor (SPF)

The amount of ultraviolet light radiated from the solar simulator lamp to the test site was adjusted to 20 to 100 mj / cm 2 and irradiated to the back region of the subject. Minimal Erythema Dosa (MED) was confirmed after 24 hours of UV irradiation.

In order to confirm the ultraviolet blocking effect of each of the samples (Examples and Comparative Examples), 0.1 g of the sample was uniformly applied on the back surface of the subject at a thickness of 2 μl / cm 2, left to stand for 15 minutes, and dried. Ultraviolet irradiation window was attached and fixed to each sample application site, and ultraviolet rays were irradiated to other portions except for the irradiation window by cutting off ultraviolet rays using leather and a towel.

The test was conducted by irradiating the ultraviolet radiation dose to the subject's MED standard (SPF 50) and gradually increasing the dose of ultraviolet radiation. The minimum erythema was determined after 24 hours of ultraviolet irradiation, and the ultraviolet blocking effect was calculated according to the following equation (1). The results are shown in Table 2 below.

[Formula 1]

UV cutoff index = (minimum erythema amount of skin part applied with cosmetic composition of silicone heavy type) / (minimum erythema amount of skin part not applied silicone cosmetic type cosmetic composition, MED)

2. Sensory Evaluation

The sensory evaluation of each sample (Example) was evaluated as feeling of use after application and application. The sensory evaluation was carried out by a general questionnaire survey method of five men and women participating in the evaluation, and the results are shown in FIG. 8 to FIG. 10. In the sensory evaluation, the w / s cream prepared using the ingredients shown in Table 3 below was used as a control. The questionnaire was confirmed by a 10-point scale (-5 to 5 points).

3. Skin safety evaluation

In order to confirm the skin safety of each sample (Examples), a test for the application of each sample (Example) was carried out. Specifically, the right and left sides of each panel of each panel (male and female) were washed with soap, and the skin was adapted at a temperature of about 20 ° C and a humidity of about 40%. The test area was defined as 4 x 3 cm square on the left and right sides of the bottom of the hatchback. The hatching was applied after each application, and the first reading was performed 30 minutes later. After 96 hours Secondary reading was performed later. To determine the intensity of the skin irritation of each sample, weights were assigned according to the degree of positive reactions of the skin, and the skin irritation of each sample was visually determined. The results are shown in Table 5 below. At this time, it was judged to be a 5-point scale, and skin averaged response was obtained according to the following formula (2): less than 1 point (Grade I): no stimulation range, (Grade III): moderate irritation, grade 5 or higher (grade IV): irritation).

[Formula 2]

Skin reaction rate = (Σ grade × number of reaction × 100) / {4 (maximum grade) × n (total number of people) × 2 (score of judgment)}

(Production Example 1)

9 g of polyvinyl alcohol was added to the reaction tank and dissolved in 2000 g of distilled water to prepare an aqueous phase.

200 g of methyl methacrylate (MMA) and 25 g of ethylene glycol dimethacrylate were added to the emulsion, and the mixture was stirred for 5 minutes. 75 g of bis-ethylhexyloxyphenol methoxyphenyltriazine (BEMT) was further added thereto and dissolved for 30 minutes To prepare an oil phase. Then, 3 g of initiator 2,2'-azobis- (2,4-dimethylvaleronitrile was added and mixed.

Thereafter, the aqueous phase was added to the emulsifier, dispersion polymerization was carried out for 30 minutes using an emulsifier, the temperature was elevated, and the reaction was carried out at 50 ° C for 15 hours.

The obtained polydisperse microparticles were dewatered using a vacuum filter, washed with water three times and vacuum dried to obtain hemispherical microparticles containing 25 wt% of final bis-ethylhexyloxyphenol methoxyphenyltriazine (Yield = 90%, mean diameter of microparticles = 2 占 퐉, see Fig. 1).

The hemispherical microparticles obtained by the above method were used to measure the oil absorption (measured in a room controlled at room temperature (23 占 폚) in accordance with the method of measuring the oil absorption amount described in JIS K 5101-13-1).

As a result, it was confirmed that the hemispherical microparticles obtained by the above method had an oil absorption of 0.888 ml / g and a total intrusion volume of 1.37 ml / g. This corresponds to an oil absorption of 150% or more and a total penetration volume of 210% or more of conventional PMMA spherical particles.

In addition, hemispherical microparticles obtained by the above method can be stably dispersed in a polyol (e.g., butylene glycol) or a silicone oil (e.g., phenyltrimethicone), and even during storage, bis-ethylhexyloxyphenol methoxyphenyl tri Precipitation of azine was not found (see Fig. 2).

(Production Example 2)

Except that 205.4 g of methyl methacrylate (MMA), 25.6 g of ethylene glycol dimethacrylate and 69 g of bis-ethylhexyloxyphenol methoxyphenyltriazine (BEMT) were used in the process of Preparation Example 1 Thereby obtaining spherical microparticles containing 28% by weight of final bis-ethylhexyloxyphenol methoxyphenyltriazine (yield = 92%, average diameter of microparticles = 2.2 탆).

(Examples 1 to 6)

A silicone water-type cosmetic composition was prepared with the composition shown in Table 1 below.

Specifically, the components of the oily phase were mixed and uniformly dispersed and dissolved. The components of the water phase were mixed and dissolved, and the solution was emulsified using a homogenizer while being added to warmed oily components to prepare a silicone water type cosmetic composition.

(Comparative Examples 1 and 2)

A silicone water-type cosmetic composition was prepared using the composition shown in Table 2 below and in the same manner as in the above example.

division	Raw material name	Example
		One	2	3	4	5	6
SPF #, PA ++		25	35	-	40	-	-
Floating	Dimethicone	5	5	5	5	5	5
	Ethylhexylmethoxycinnamate * BHT	3	5	5	5	5	5
	Ethylhexyl salicylate	2	3	3	3	3	3
	Trisiloxane * dimethicone	4	4	4	4	4	4
	Cyclomethicone * Dimethicone / Vinyl Dimethicone Crosspolymer	2	2	2	2	2	2
	Distearmonium hectorite	1.3	1.3	1.3	1.3	1.3	1.3
	Tocopherol * lauryl PEG-9 polydimethylsiloxyethyl dimethicone	2.5	2.5	2.5	2.5	2.5	2.5
	Titanium dioxide * Aluminum hydroxide * Stearic acid	1.2	1.2	1.2	1.2	1.2	1.2
	Dimethicone * Trisiloxane	10	10	10	10	10	10
	C12-15 alkyl benzoate * titanium dioxide * aluminum stearate * polyhydroxystearic acid * alumina	8	8	8	8	8	8
	PEG-10 Dimethicone	3	3	3	3	3	3
	Production Example 1_ Microcapsule (BEMT 25%)	10	12	12	12	12	12
	Bis-ethylhexyloxyphenol methoxyphenyltriazine	-	-	-	-	-	-
Water top	Phenylbenzimidazole sulfonic acid (PBSA)	-	-	2.0	2.5	2.0	2.0
	Tromethamine	-	-	1.9	2.4	1.9	1.9
	HP-b-cyclodextrin	-	-	4.0	5.0	1.9	4.1
	2Na EDTA	0.05	0.05	0.05	0.05	0.05	0.05
	Sodium chloride	0.5	0.5	0.5	0.5	0.5	0.5
	glycerin	2.0	2.0	2.0	2.0	2.0	2.0
	Propanediol	3.0	3.0	3.0	3.0	3.0	3.0
	Glyceryl caprylate	0.1	0.1	0.1	0.1	0.1	0.1
	Tocopherol * ethylhexyl glycerin	0.05	0.05	0.05	0.05	0.05	0.05
	water	Balance

division	Raw material name	Comparative Example
		One	2
SPF #, PA ++		-	-
Floating	Dimethicone	5	5
	Ethylhexylmethoxycinnamate * BHT	3	3
	Ethylhexyl salicylate	2	2
	Trisiloxane * dimethicone	4	4
	Cyclomethicone * Dimethicone / Vinyl Dimethicone Crosspolymer	2	2
	Distearmonium hectorite	1.3	1.3
	Tocopherol * lauryl PEG-9 polydimethylsiloxyethyl dimethicone	2.5	2.5
	Titanium dioxide * Aluminum hydroxide * Stearic acid	1.2	1.2
	Dimethicone * Trisiloxane	10	10
	C12-15 alkyl benzoate * titanium dioxide * aluminum stearate * polyhydroxystearic acid * alumina	8	8
	PEG-10 Dimethicone	3	3
	Production Example 1_ Microcapsule (BEMT 25%)	10	-
	Bis-ethylhexyloxyphenol methoxyphenyltriazine	-	2.5
Water top	Phenylbenzimidazole sulfonic acid (PBSA)	2.0	-
	Tromethamine	1.9	-
	HP-b-cyclodextrin	-	-
	2Na EDTA	0.05	0.05
	Sodium chloride	0.5	0.5
	glycerin	2.0	2.0
	Propanediol	3.0	3.0
	Glyceryl caprylate	0.1	0.1
	Tocopherol * ethylhexyl glycerin	0.05	0.05
	water	Balance

division	Raw material name	Control group
Floating	Wax	1.5
	Ester oil	10
	Ethylhexylmethoxycinnamate * BHT	6.5
	W / O Emulsifier	7
	Cyclomethicone	12
	Silicone elastomer	2
	Distearmonium hectorite	1.2
	Pigment + Powder	10
Water top	Distilled water	To 100
	Polyol	6
	Sodium chloride	One
	2Na EDTA	0.05
	antiseptic	0.2
	extract	1.5

	Skin mean response	Judgment grade
Example 1	0.11	Class I
Example 2	0.32	Class I

It has been confirmed that the problem of solubility in the cosmetic composition of the silicone water type according to the present invention can solve the problem of bis-ethylhexyloxyphenol methoxyphenyltriazine, which has undergone crystal precipitation.

Specifically, as shown in FIG. 3 and FIG. 4, the cosmetic composition of the silicone water type according to the present invention is characterized in that when observing by optical and polarizing microscope, the phenylbenzimidazole-based bis-ethylhexyloxyphenol methoxyphenyltri It was confirmed that a very stable formulation can be maintained without precipitating crystals into crystals.

In addition, as shown in Fig. 7, the silicone water-type cosmetic composition according to the present invention can be combined with a phenylbenzimidazole-based compound, which is one of the organic UV- In addition to blocking effects, synergies can be added to the SPF index. Particularly, it has been confirmed that the phenylbenzimidazole-based compound applied to the water phase can be more stably applied to the formulation without the precipitation.

On the other hand, as shown in FIG. 5, in the case of Comparative Example 1, the phenomenon that bis-ethylhexyloxyphenol methoxyphenyltriazine precipitated immediately after the preparation of the formulations was confirmed. In addition, as shown in FIG. 6, the phenomenon that the phenylbenzimidazole-based compound applied to the water phase in the case of Comparative Example 2 was precipitated as crystals could be observed with a polarizing microscope.

On the other hand, as a result of the sensory evaluation, it was confirmed that the cosmetic composition of the silicone heavy water type according to the present invention can simultaneously provide a feeling of feeling providing a feeling of residual and thickness with a feeling of use that is light and non-sticky and excellent adhesion.

Specifically, as shown in FIG. 8 to FIG. 10, when the cosmetic composition of the silicone water type according to the present invention is applied to the skin, a feeling of smooth feeling without tackiness is imparted, and a feeling of tight feeling is provided with appropriate thickness. In addition, it provides silky smoothness even after application, and lowers residual feeling and oiliness, thereby enhancing the feeling of use feeling. This feeling is in sharp contrast with the result of preparing a commercially available w / s cream as a control, which means that the feeling of feeling of use of the present invention is higher than that of the control.

Further, as shown in Table 4, it was confirmed that the cosmetic composition of the silicone water type according to the present invention does not cause irritation to the skin and can be safely used.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Those skilled in the art will recognize that many modifications and variations are possible in light of the above teachings.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

Claims (13)

1. A cosmetic composition of the silicone heavy water type comprising microparticles comprising bis-ethylhexyloxyphenol methoxyphenyltriazine.
2. The method according to claim 1,

   The micro-

   Ethylhexyloxyphenol methoxyphenyltriazine in an amount of 20% by weight or more based on the total weight of the microparticles.
3. 3. The method of claim 2,

   Wherein the microparticles are semispherical.
4. The method according to claim 1,

   Wherein the microparticles have an average diameter ranging from 1 to 10 mu m.
5. The method according to claim 1,

   Wherein the composition further comprises a phenylbenzimidazole-based compound and a cyclodextrin-based compound in an aqueous phase.
6. 6. The method of claim 5,

   The composition may comprise,

   Wherein the phenylbenzimidazole compound and the cyclodextrin compound are contained in a weight ratio of 1: 0.1 to 1:10.
7. 6. The method of claim 5,

   Wherein the composition has a pH of at least 7.5.
8. 6. The method of claim 5,

   The composition may comprise,

   1. A cosmetic composition of the silicone water-repellent type which satisfies the following relational expression (1).

   [Relation 1]

   0.1? B / A? 1.0

   [In the above formula 1,

   A is the amount (g) of bis-ethylhexyloxyphenol methoxyphenyltriazine used,

   And B is an amount (g) of the phenylbenzimidazole-based compound]
9. The method according to claim 1,

   The composition may comprise,

   (COO), a ketone group (CO) and a hydroxyl group (OH), based on the total weight of the composition, of 0 to 1% by weight of a polar oil comprising at least one polar functional group selected from a carboxyl group Type cosmetic composition.
10. The method according to claim 1,

    The composition may comprise,

    A cosmetic composition of the silicone water-repellent type, further comprising a PEG-containing silicone surfactant.
11. 11. The compound according to any one of claims 1 to 10,

    Wherein the composition is a silicone water-repellent type cosmetic composition for ultraviolet light shielding.
12. 11. The compound according to any one of claims 1 to 10,

    The composition may comprise,

    Ethylhexyloxyphenol methoxyphenyltriazine in an amount of 0.1 to 10% by weight based on the total weight of the composition.
13. 13. The method of claim 12,

    The composition may comprise,

    A cosmetic composition of the silicone water-repellent type which contains 25% by weight or less of the organic UV-blocking agent based on the total weight of the composition, and the UV-blocking index of the composition calculated by the following formula 1 is 10 or more.

    [Formula 1]

    UV cutoff index = (minimum erythema amount of the skin part applied with the cosmetic composition of the silicone water type) / (minimum erythema amount of the skin part not coated with the silicone water type cosmetic composition)

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