TW201922199A - Cosmetic composition of water-in-silicone type containing organic UV absorbers - Google Patents

Abstract

Provided is a water-in-silicone type cosmetic composition including an organic UV sunscreen, and according to the present invention, it is possible to provide a stable water-in-silicone type cosmetic composition including bis-ethylhexyloxyphenol methoxyphenyl triazine to improve a problem that the bis-ethylhexyloxyphenol methoxyphenyl triazine is not applicable to silicone formulation due to a solubility problem.

Description

A hydrazine type cosmetic composition comprising an organic UV absorber

The following disclosure relates to a leech type cosmetic composition comprising an organic sunscreen.

Ultraviolet (UV) causes skin erythema, swelling, freckles, and the like, and is even confirmed to be a major cause of skin cancer, and thus various studies have been conducted on various skin diseases caused by UV. In general, UV is classified according to its wavelength to a UV-C wavelength of 240 nm to 280 nm, a UV-B wavelength of 280 nm to 320 nm, and a UV-A wavelength of 320 nm to 400 nm. Between the wavelengths, it is known that UV-C passes through the ozone layer and disappears without reaching the surface of the earth. UV-B invades the epidermis of the skin, causing erythema, freckles, swelling, etc., and UV-A invades the dermis of the skin, thereby inducing skin aging. And skin irritation, such as promoting wrinkles or melanin formation or the like, or inducing skin cancer.

In recent years, as the UV irradiation dose of the earth's surface has increased due to the rupture of the ozone layer, the market for products whose main purpose is UV blocking has been increasing year by year, and consumer demand for cosmetic compositions for UV blocking in the entire wavelength range is also rise.

In general, for a cosmetic composition for UV blocking, a water-in-oil (W/O) type in which an oil phase is an external phase or an oil-in-water in which an aqueous phase is an external phase has been proposed (oil) -in-water; O/W) type.

The O/W pattern has the advantage of providing more freshness when applied to the skin than the W/O type, but still has the disadvantage that despite continuous research to improve water repellency, the O/W type The product is easily washed away by sweat or water. Therefore, the O/W type has a drawback that the durability of the UV blocking effect is remarkably lowered.

On the other hand, the W/O type is more effective than the O/W type, but has the disadvantage that it is heavy and viscous, which is related to the high viscosity of the general W/O type product. In addition, the W/O type product has a disadvantage of increasing the viscosity of the internal phase by increasing the ratio of the aqueous phase as the internal phase, thereby also having a disadvantage that the emulsion stability is lower than that of the O/W type product. Emulsification stability. Conversely, a W/O type product having a low viscosity has a problem in that when the product is stored in a container for a long period of time during distribution, the aqueous phase as the internal phase and the oil phase as the external phase are separated, thereby causing product stability. Reduced sex. Therefore, in order to improve the stability, it is necessary to increase the viscosity, and when the viscosity is increased, there is a disadvantage that the feeling of use is heavy and sticky.

At the same time, most organic UV sunscreens have poor stability for heat and light. In particular, bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) has poor solubility relative to solvents, and therefore requires bis-ethylhexyloxyphenol methoxyphenyl three. The azine is dissolved in an oil or similar entity having a high polarity, such as an alkyl benzoate, and the dissolved material is applied to the oil phase. As an alternative to solving such problems, composite particles containing an organic UV sunscreen (such as bisethylhexyloxyphenol methoxyphenyl triazine, etc.) have been proposed, but the solubility problem has not yet been completely solved.

Therefore, the present inventors focused on the problem of a conventional cosmetic composition for UV blocking and proposed a composition of a water-based cosmetic capable of having water repellency and excellent adhesion, and imparting a light and silky feeling while being used. And repeat the study of this cosmetic composition. Accordingly, the inventors have found that it is possible to provide a hydrazine type cosmetic composition capable of stably containing bisethylhexyloxyphenol methoxyphenyl triazine, the bisethylhexyloxyphenol methoxyphenyl triazine Since the solubility problem has a problem that is not applicable to the external phase of the terpenoid, the present invention has been completed.

[technical problem]

An embodiment of the present invention is directed to ensuring a stable formulation comprising bisethylhexyloxyphenol methoxyphenyl triazine which is not suitable due to solubility problems The problem with the external phase of the scorpion. In other words, an embodiment of the present invention is directed to providing a stable aqueous hydrazine type cosmetic composition comprising bisethylhexyloxyphenol methoxyphenyl triazine.

Another embodiment of the present invention is directed to providing a leech type cosmetic composition capable of imparting synergy with respect to an ultraviolet light blocking effect by simultaneously applying an organic UV sunscreen to an inner phase and an outer phase.

Still another embodiment of the present invention is directed to providing a leeches type cosmetic composition capable of improving durability and water repellency by improving adhesion to skin, thereby achieving long-lasting UV blocking effect and preventing skin from being damaged by UV damage. .
[Technical Solutions]

In a general aspect. There is provided a leech type cosmetic composition comprising: microparticles comprising bisethylhexyloxyphenol methoxyphenyl triazine.

The leech type cosmetic composition is a cosmetic composition for UV blocking.

The microparticles may comprise diethylhexyloxyphenol methoxyphenyltriazine in an amount of 20% by weight or more based on the total weight of the microparticles.

The particles can be hemispherical.

The microparticles can have an average diameter ranging from 1 micrometer (μm) to 10 micrometers.

The leeches type cosmetic composition may further comprise: a phenyl benzimidazole compound and a cyclodextrin compound in an aqueous phase.

The composition may contain a phenyl benzimidazole compound and a cyclodextrin compound in a weight ratio of 1:0.1 to 1:10.

The pH of the composition may be 7.5 or more, and specifically, when the hydrazine type cosmetic composition containing the phenyl benzimidazole compound and the cyclodextrin compound has a pH of 7.5 or more, it is possible Improved formulation stability and enhanced effects of sun protection factor (SPF).

The composition can satisfy the following relational expression 1:

[Relational expression 1]

0.1 ≤ B/A ≤ 1.0

In relational expression 1,

A is the amount (g) of bisethylhexyloxyphenol methoxyphenyltriazine used, and

B is the amount (in grams) of the phenyl benzimidazole compound used.

The composition may comprise 0% by weight to 1% by weight, based on the total weight of the composition, of a polar oil comprising at least one selected from the group consisting of a carboxyl group (COO), a ketone group (CO), and a hydroxyl group (OH). Polar functional group.

The leech type cosmetic composition may further comprise a terpene surfactant added with polyethylene glycol (PEG).

The composition may comprise diethylhexyloxyphenol methoxyphenyltriazine in an amount of from 0.1% by weight to 10% by weight based on the total weight of the composition.

The composition may contain an organic UV sunscreen agent in an amount of 15% by weight or less, and the organic UV sunscreen agent comprises bisethylhexyloxyphenol methoxyphenyltriazine, and the composition calculated by the following Equation 1 The sun protection factor (SPF) of the object can be 30 or greater than 30:

[Equation 1]

SPF = (minimum erythema dose (MED) of the skin portion coated with the hydrazine type cosmetic composition) / (minimum erythema amount of the skin portion not coated with the hydrazine type cosmetic composition).
[Advantageous effect]

According to the present invention, it is possible to use a bis-ethylhexyloxyphenol methoxyphenyl triazine to ensure a stable aqueous hydrazine type formulation which is problematic due to solubility. Has problems that are not suitable for use in sputum formulations.

Further, according to the present invention, it is possible to provide a highly stable aqueous hydrazine type cosmetic composition comprising bisethylhexyloxyphenol methoxyphenyltriazine even if the polar oil is not substantially used.

Further, according to the present invention, it is possible to realize a stable formulation in which an organic sunscreen agent is stably contained in each of an inner water phase and an outer oil phase (矽 phase), thereby imparting synergy to an ultraviolet light blocking effect, And blocking UV in the entire UV wavelength region (UV-A region, UV-B region, and UV-C region).

Further, according to the present invention, it is possible to provide a leeches type cosmetic composition which imparts lightness and freshness during use by introducing bismuth into the outer oil phase while imparting excellent water repellency to be highly compact Excellent durability is achieved in the case of adhesion to the skin, and the composition is prevented from being applied after application.

In short, according to the present invention, it is possible to provide an improved UV blocking effect and excellent water repellency by solving the problem of solubility and formulation stability of bisethylhexyloxyphenol methoxyphenyl triazine. A UV-blocked hydrazine-type cosmetic composition.

In the following, a hydroquinone-type cosmetic composition comprising an organic sunscreen according to the invention is described. Unless otherwise defined, technical and scientific terms used herein have the meaning commonly understood by those skilled in the art to which this invention relates. Known functions and configurations that obscure the essentials and unnecessary details of the present invention will be omitted.

As used herein, the term "water raft" means an emulsion comprising a continuous oil phase (where eucalyptus oil is the major component) and a dispersed phase containing water in the continuous phase. In other words, the leeches type cosmetic composition means an emulsion in which the internal aqueous phase containing water is dispersed in the outer oil phase containing eucalyptus oil.

As used herein, the term "external oil phase" means a continuous phase in which eucalyptus oil is the main component, and may have the same meaning as the outer phase or the hydrazine phase, and the term "internal aqueous phase" means a dispersed phase containing water. It can have the same meaning as the water phase.

As used herein, the term "hydrophilic-lipophilic balance (HLB)" means an indication of the balance between a hydrophilic group and a lipophilic group of a surfactant. Herein, the HLB can be represented by a numerical value of 0 to 20. When the value of HLB is low, it exhibits a lipophilic character and conversely, when its value is high, it exhibits a hydrophilic character.

In general, bisethylhexyloxyphenol methoxyphenyltriazine must be dissolved in an oil or similar entity having a high polarity (such as an alkyl benzoate) and applied to the oil phase, and the terpene oil The solubility is very low, and therefore even if bis-hexyloxyphenol methoxy phenyl triazine is applied to the formulation in which the ruthenium is the external phase, the UV blocking effect is not significant.

Therefore, the present inventors have carried out an intensive study on a method capable of solving the problem of bisethylhexyloxyphenol methoxyphenyltriazine, and further applied bisethylhexyloxyphenol methoxyphenyltriazine to various forms. In the formulation, the bisethylhexyloxyphenol methoxyphenyl triazine, while having a high UV blocking effect, is difficult to apply to the formulation due to solubility problems.

Accordingly, the inventors have found that it is possible to provide the above-described problems by using microparticles containing bisethylhexyloxyphenol methoxyphenyltriazine, and at the same time, to solve the problem of bisethylhexyloxyphenol methoxy The hydrazine-type cosmetic composition of the precipitation problem of phenyltriazine, while achieving a stable formulation of the external phase formulation, is completed, and the present invention has been completed.

According to the present invention, it is possible to provide a leech type cosmetic composition capable of uniformly dispersing bisethylhexyloxyphenol methoxyphenyltriazine in a formulation and providing an SPF enhancing effect by effectively scattering UV.

At the same time, in the conventional emulsified formulation, it is difficult to contain all the lightness and non-stickiness when used, and at the same time, the residual feeling and the thickness feeling are reduced under the excellent close adhesion. However, it should be noted that the leeches type cosmetic composition according to the present invention is a formulation having an optimum formulation capable of simultaneously providing the feeling of use described above, which provides a use different from the feeling of use of the conventional emulsion formulation. sense.

In other words, the present invention provides a novel form of the formulation wherein bisethylhexyloxyphenol methoxyphenyl triazine is stably used in different oxime formulations.

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

The leeches type cosmetic composition according to an embodiment of the present invention may comprise microparticles comprising bisethylhexyloxyphenol methoxyphenyl triazine.

Even with the use of bisethylhexyloxyphenol methoxyphenyl triazine which has extremely low solubility for eucalyptus oil, the hydrazine type cosmetic composition according to an embodiment of the present invention can effectively inhibit bisethylhexyloxyphenol The phenomenon that oxyphenyltriazine precipitates as a crystal on the surface of the fine particles, on the external phase of the composition or the like, further solves the problem of solubility of bisethylhexyloxyphenol methoxyphenyltriazine.

In particular, in the leeches type cosmetic composition according to an embodiment of the present invention, the microparticles may comprise bishexyloxyphenol in an amount of 20% by weight or more by weight based on the total weight of the microparticles. Methoxyphenyl triazine. Herein, the microparticles may comprise only bisethylhexyloxyphenol methoxyphenyl triazine in the particles.

Even if the microparticles contain the amount of bisethylhexyloxyphenol methoxyphenyl triazine described above, the microparticles can have excellent photostability and can be stably dispersed in the external phase of the crucible, thereby achieving excellent UV blocking. effect.

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

It should be noted that the leeches type cosmetic composition according to an embodiment of the present invention includes particles having a hemispherical particle shape, thereby providing a feeling of use different from the feeling of use of the spherical particles, and imparting excellent adhesion due to improved close adhesion. Persistence, as well as significant sebum absorption capacity due to significant oil absorption and total immersion volume.

Further, in the leeches type cosmetic composition according to an embodiment of the present invention, the microparticles may have an average diameter ranging from 1 μm to 10 μm, but the average diameter is not limited thereto. Herein, when hemispherical particles are used, it is possible to provide a feeling of use different from the case of using spherical particles, and to impart excellent durability in the case of high adhesion, thereby improving the UV blocking effect.

For example, the particles may preferably have an average diameter ranging from 1 micrometer to 8 micrometers, more preferably from the viewpoint of stably dispersing the microparticles in the outer surface of the crucible and achieving excellent adhesion. The average diameter ranges from 2 micrometers to 6 micrometers, but the average diameter is not limited thereto.

In the leeches type cosmetic composition according to an embodiment of the present invention, the microparticles may comprise bisethylhexyloxyphenol methoxyphenyltriazine uniformly contained in the internal matrix of the polymer particles. Herein, uniformity may mean that bisethylhexyloxyphenol methoxyphenyltriazine is uniformly mixed in a polymer matrix in a molecular manner.

For example, microparticles can be produced by dispersion polymerization using an oil phase containing both bis-hexyloxyphenol methoxy phenyl triazine, a polymerizable monomer, and a polyfunctional crosslinking monomer. In other words, microparticles may be provided such that bisethylhexyloxyphenol methoxyphenyltriazine is uniformly contained in the internal matrix of the polymer particles.

For example, the microparticles can be hemispherical particles.

The present inventors have found that when dispersion polymerization is carried out to produce microparticles containing only bisethylhexyloxyphenol methoxyphenyltriazine as an organic sunscreen agent, it is possible to use bisethylhexyloxyphenol methoxyphenyl group depending The amount of triazine specifically achieves a hemispherical shape. Herein, the microparticles may comprise 20% by weight or more than 20% by weight of bisethylhexyloxyphenol methoxyphenyltriazine as described above. The microparticles produced by the dispersion polymerization may comprise bisethylhexyloxyphenol methoxyphenyltriazine in an amount of from 24% by weight to 30% by weight, and more specifically from 24.5% by weight to 28.5% by weight.

When the range described above is satisfied, hemispherical particles may be formed to promote the improvement of the desired effect, but the invention is not limited thereto.

Further, in the fine particles produced by the dispersion polymerization, a polyfunctional crosslinking monomer may be used in an amount of from 0.1 part by weight to 100 parts by weight, based on 100 parts by weight of the polymerizable monomer, and the polyfunctional crosslinking is used. The amount of the monomer can be changed depending on the degree of crosslinking according to the purpose, and the amount of bisethylhexyloxyphenol methoxyphenyltriazine used can be appropriately controlled depending on the shape of the particles to be realized.

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

The polymerizable monomer is not limited as long as it is a radically polymerizable monomer copolymerizable with the polyfunctional crosslinking monomer described below, and specifically may be a radically polymerizable monomer containing one ethyl group. . Examples of the polymerizable monomer may include an aromatic vinyl monomer such as styrene, methyl styrene, ethyl styrene, fluorostyrene, chlorostyrene, vinyl toluene, or the like; an acrylic vinyl monomer such as ( Methyl)methyl acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, octyl (meth)acrylate, octadecyl (meth)acrylate, benzyl (meth)acrylate, Glycidyl (meth)acrylate or the like. Further, in the present invention, one or two or more kinds of radically polymerizable monomers described above may be used.

The polyfunctional crosslinking monomer is not limited as long as it is a monomer capable of crosslinking a polymerizable monomer, and specifically may be a crosslinking monomer containing two or more ethyl groups. Examples of the polyfunctional crosslinking monomer may include divinylbenzene, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, trimethylene propane trimethyl. Acrylate, 1,3-butanediol dimethacrylate, 1,6-hexanediol dimethacrylate, tri(meth)acrylate, and the like. Further, in the present invention, one or two or more kinds of polyfunctional crosslinking monomers described above may be used.

Further, the leeches type cosmetic composition according to an embodiment of the present invention may contain the content of 1% by weight to 35% by weight, specifically, 5% by weight to 30% by weight, based on the total weight of the composition, and More specifically, 5 to 15% by weight of the particles.

In other words, the aqueous form cosmetic composition may comprise up to 10% by weight, based on the total weight of the composition, of diethylhexyloxyphenol methoxyphenyltriazine.

According to an embodiment of the present invention, the hydrazine type cosmetic composition may further comprise: a phenyl benzimidazole compound and a cyclodextrin compound in an aqueous phase.

The phenyl benzimidazole compound is one of the organic sunscreen agents contained in the aqueous phase. In a general O/W formulation, the pH of the formulation is adjusted to an appropriate range to inhibit crystal precipitation. On the other hand, in the ruthenium-based W/S formulation, the phenyl benzimidazole compound is precipitated, and thus it is difficult to apply the formulation to the aqueous phase.

Regardless of such characteristics, it has been confirmed that the leeches type cosmetic composition according to an embodiment of the present invention can effectively suppress the problem by using a combination of the microparticles and the phenyl benzimidazole compound as described above (for example) , crystal precipitation). In addition, by simultaneously using a cyclodextrin-based compound, crystal precipitation can be more effectively suppressed, and even if a phenyl benzimidazole compound partially crystallizes in an aqueous phase, a cyclodextrin compound can assist phenylbenzimidazole. The compound is stably redissolved in the aqueous phase.

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

For example, the content of the phenyl benzimidazole compound and the cyclodextrin compound may specifically be a weight ratio of 1:1 to 1:2, and more specifically 1:1.5 to 1:2. From the standpoint that it is possible to achieve a more improved formulation stability, it is preferred to satisfy the weight ratios described above.

For example, to ensure a more stable formulation, the pH of the composition can be 7.5 or greater than 7.5, specifically 7.5 to 9, and more specifically 7.5 to 8.5.

For example, from the standpoint of possibly inhibiting crystal precipitation of a phenyl benzimidazole compound and promoting improved formulation stability, it is preferred that the composition satisfy the phenyl benzimidazole compound and cyclodextrin described above. The weight ratio of the compounds, while satisfying the pH range of 7.5 or greater than 7.5.

The phenyl benzimidazole compound is one of water-soluble organic UV sunscreen agents, and examples of the phenyl benzimidazole compound may include phenyl benzimidazole sulfonic acid, potassium phenyl benzimidazole sulfonate, and phenyl group. Sodium benzimidazole sulfonate, TEA-phenyl benzimidazole sulfonate, and the like. Further, in the present invention, one or two or more kinds of phenyl benzimidazole compounds described above may be used, but the invention is not limited thereto.

Herein, in the leeches type cosmetic composition according to an embodiment of the present invention, the content of the phenyl benzimidazole compound may be 0.1% by weight to 10% by weight based on the total weight of the composition, specific It is 0.5% by weight to 4.5% by weight, and more specifically 0.5% by weight to 2.5% by weight, but the amount of the phenyl benzimidazole-based compound is not limited thereto.

Cyclodextrin-based compounds are provided to prevent crystal precipitation of phenyl benzimidazoles and to provide improved formulation stability. Examples of the cyclodextrin-based compound may include α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, hydroxypropyl β-cyclodextrin, carboxymethylcyclodextrin, methylcarboxymethylcyclodextrin. Fine, aminocyclodextrin, glucose-added branched cyclodextrin, and cyclodextrin polymer. Further, in the present invention, one or two or more kinds of cyclodextrin-based compounds described above may be used, but the invention is not limited thereto.

As described above, in the leeches type cosmetic composition according to an embodiment of the present invention, the phenyl benzimidazole compound and the cyclodextrin compound are contained in the aqueous phase. Herein, a cyclodextrin-based compound is used to effectively suppress crystal precipitation of a phenyl benzimidazole compound contained in an aqueous phase. When the cyclodextrin-based compound satisfies a predetermined weight ratio and satisfies the appropriate pH range of the composition, it is possible to completely suppress crystal precipitation of the phenyl benzimidazole compound and provide a more stable formulation.

In the hydrazine type cosmetic composition according to an embodiment of the present invention, the amount of the bisethylhexyloxyphenol methoxyphenyl triazine and the phenyl benzimidazole compound used may satisfy some relational expressions. 1:

[Relational expression 1]

0.1 ≤ B/A ≤ 1.0

In relational expression 1,

A is the amount (g) of bisethylhexyloxyphenol methoxyphenyltriazine used, and

B is the amount (in grams) of the phenyl benzimidazole compound used.

When the relational expression 1 is satisfied, it is possible to provide a synergistic effect on the sun protection factor (SPF) of the composition. Specifically, the ratio (B/A) of the amount of the bisethylhexyloxyphenol methoxyphenyl triazine and the phenyl benzimidazole compound to be used can satisfy 0.3 to 0.8. When the relational expression is satisfied, the organic sunscreen agent (ie, bisethylhexyloxyphenol methoxyphenyl triazine compound and phenyl benzimidazole compound) is simultaneously introduced, stably dispersed and dissolved in the formulation. In the inner and outer oil phases, it is possible to achieve a UV blocking effect in the entire UV wavelength region (UV-A region, UV-B region, and UV-C region).

Further, the leeches type cosmetic composition according to an embodiment of the present invention is characterized in that it does not substantially contain a polar oil for dissolving bisethylhexyloxyphenol methoxy phenyl triazine or contains traces thereof (trace Amount).

In other words, according to the present invention, it is possible to provide a highly stable aqueous form cosmetic composition while overcoming the solubility of bisethylhexyloxyphenol methoxyphenyl triazine, even if it does not contain a polar oil or uses a trace amount of a polar oil. .

For example, the polar oil comprises at least one polar functional group selected from the group consisting of a carboxyl group (COO), a ketone group (CO), and a hydroxyl group (OH). Examples of the polar oil may include hexadecyl ethylhexanoate, octyl myristate dodecyl ester, maleic acid di-C12-13 alkyl ester, tetraisostearic acid isovaleryl ester, and four Isopentyl ethyl hexanoate, diisostearyl maleate, isopropyl palmitate, C12-15 alkyl benzoate, dioctanoic acid carbonate, dioctanoate, 2-octyl Dodecyl alcohol and the like.

For example, the polar oil may be present in an amount of from 0% by weight to 1% by weight, in particular from 0% by weight to 0.5% by weight, and more specifically and more specifically 0% by weight, based on the total weight of the composition. Up to 0.1% by weight, but the amount of the polar oil is not limited thereto.

Further, in the leeches type cosmetic composition according to an embodiment of the present invention, the particles containing bisethylhexyloxyphenol methoxy phenyl triazine are stably dispersed while preventing diethyl hexyl oxy phenol. From the viewpoint that methoxyphenyltriazine precipitates as a crystal at the interface, it is preferred to use a quinone-based surfactant to which PEG is added.

Examples of quinone-type surfactants to which PEG is added may include cyclopentaoxane and PEG/PPG-18/18 dimethylpolyoxyalkylene, PEG-30 dipolyhydroxystearate, PEG-7 dimethyl sulfonate Oxane, PEG-10 dimethylpolyoxane, cyclopentaoxane/PEG.PPG-19.19 dimethylpolyoxane, sorbitan isostearate, lauryl PEG.PPG-18.18 Oxyalkane, cetyl PEG. PPG-10.1 dimethyl polyoxy siloxane (cetyl PEG. PPG-10.1 dimethicone), lauryl PEG-9 polydimethyl decyl oxyethyl dimethyl polyoxy siloxane, and the like. Further, in the present invention, one or two or more kinds of quinone-type surfactants added with PEG as exemplified above may be used, but the invention is not limited thereto.

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

Herein, in the hydrazine type cosmetic composition according to an embodiment of the present invention, the amount of the PEG-added quinone surfactant to be used may be appropriately adjusted depending on the type and content of the quinone oil.

For example, the PEG-added quinone surfactant may be included in an amount of from 1% by weight to 10% by weight, specifically from 1% by weight to 8% by weight, and more specifically 3% by weight, based on the total weight of the composition. % to 6% by weight, but the amount of the quinone-based surfactant to which PEG is added is not limited thereto.

Further, the hydrazine type cosmetic composition according to an embodiment of the present invention may contain the content of 1% by weight to 4.5% by weight, specifically 1% by weight to 4% by weight, based on the total weight of the composition, and More specifically, 1.5% by weight to 3.5% by weight of bisethylhexyloxyphenol methoxyphenyltriazine.

Further, the leeches type cosmetic composition according to an embodiment of the present invention may contain an organic UV sunscreen agent in an amount of 15% by weight or less, and the organic UV sunscreen agent comprises bisethylhexyloxyphenol Methoxyphenyl triazine, and the composition of the formula calculated by the following Equation 1 may have a sun protection factor (SPF) of 30 or more:

[Equation 1]

SPF = (the minimum amount of erythema of the skin portion coated with the hydrazine type cosmetic composition) / (the minimum amount of erythema of the skin portion not coated with the hydrazine type cosmetic composition).

For example, the leeches type cosmetic composition according to an embodiment of the present invention contains bisethylhexyloxyphenol methoxy phenyl triazine in an amount of up to 4.5% by weight, and is contained in an amount of 25% by weight or less. 25 wt% of an organic UV sunscreen agent comprising bisethylhexyloxyphenol methoxyphenyl triazine, wherein the composition calculated by the above Equation 1 may have an SPF of 10 to 50, specified 20 to 50, and more specifically 30 to 50.

The leeches type cosmetic composition according to an embodiment of the present invention contains one or two or more kinds of terpenoid oils selected from the group consisting of dimethylpolysiloxane, cyclomethoxane, and phenyltrimethyl Polyoxane, polydimethyloxane, methylphenyl polyoxane, methylcyclopolyoxyalkylene, octamethylcyclotetraoxane, decamethylcyclopentaoxane, twelve Methylcyclohexaoxane, tetradecyl hexaoxane, octamethyltrioxane, and the like.

For example, the terpene oil may be present in an amount of from 15% by weight to 60% by weight, based on the total weight of the composition, in particular from 15% to 50% by weight, and more specifically from 20% to 40% by weight. However, the amount of terpenoid oil is not limited to this.

For example, the composition contains residual amounts of water.

In addition, the leeches type cosmetic composition according to an embodiment of the present invention may further comprise an organic sunscreen agent and an inorganic sunscreen agent depending on the purpose, and may further comprise at least one additive selected from the group consisting of: a moisturizing component, Thickeners, pH adjusters, anti-tarnish agents, pigments, fragrances, preservatives, and soothing accelerators. Herein, the content of the organic sunscreen, the inorganic sunscreen, and the additive may be 0.01% by weight to 20% by weight, respectively, based on the total weight of the composition, but the invention is not limited thereto.

Hereinafter, a leeches type cosmetic composition containing an organic sunscreen agent according to an embodiment of the present invention is described in more detail in the following examples. However, the following examples are merely illustrative examples of the invention, and the invention is not limited thereto, and may be embodied in various forms. In addition, the components specifically described in the present specification may be expressed in units of grams (g) or % by weight based on the total composition.

(evaluation method)

1. Evaluation of sun protection factor (SPF)

The amount of ultraviolet light emitted by the solar simulator lamp to the test area was adjusted to 20 mJ/cm to 100 mJ/cm and UV radiation was applied to the back of the subject. The minimum amount of erythema (MED) was determined after 24 hours of UV radiation.

To determine the UV blocking effect of each sample (example and comparative example), the subject's back was uniformly coated with a 0.1 gram sample having a thickness of 2 microliters per square centimeter, left to stand for 15 minutes, and dried. The UV radiation window is attached and fixed to each sample application site, and UV radiation is applied while using leather and towels to UV block other portions than the radiation window.

The UV radiation dose was measured based on the subject's MED (SPF 50) and tested by gradually increasing the UV radiation dose. After 24 hours of UV irradiation, the minimum amount of erythema was judged, and the UV blocking effect was calculated according to the following Equation 1. The results are shown in Table 2 below.

[Equation 1]

SPF = (the minimum amount of erythema on the skin portion coated with the hydrazine type cosmetic composition) / (the minimum amount of erythema in the skin portion not coated with the hydrazine type cosmetic composition)

2. Sensory evaluation

The sensory evaluation of each sample (example) was evaluated at the time of application and after the application. Sensory evaluations were performed by a general questionnaire method in which five males and five females participated in the evaluation, and the results are shown in Figs. 8 to 10. In the sensory evaluation, w/s cream prepared using the components shown in Table 3 below was used as a control group, and the questionnaire was determined by a 10-point scale (-5 minutes to 5 minutes).

3. Skin safety assessment

To determine the skin safety of each sample (instance), a patch test of each sample (instance) was performed. Specifically, the right forearm and the left forearm of each group (each male and female) were washed with soap, and the skin of each group was adapted to a temperature of about 20 ° C and a humidity of about 40%. The test area was two square areas having a size of 4 × 3 cm 2 on the left inner side surface and the right inner side surface of the forearm, and the patch coated with each sample was attached thereto, and the patch was removed after 28 hours. The first reading was performed 30 minutes after the patch was attached, and the second reading was performed 96 hours after the patch was attached. To determine the intensity of skin irritation of each sample, the average degree of skin reaction was calculated by providing a weighting value according to the degree of skin positive reaction, and the skin irritation of each sample was visually judged. The results are shown in Table 5 below. In this paper, the judgment criteria are judged by the 5-point scale, and the average skin reaction degree is calculated according to the following Equation 2 (judgment criterion: less than 1 point (level I): no stimulation, 1 point or more than 1 point to less than 3 Points (Grade II): Mild stimuli, 3 points or greater than 3 points to less than 5 points (Level III): Moderate stimuli, 5 points or greater than 5 points (Level IV): Strong stimuli).

[Equation 2]

(Preparation Example 1)

9 g of polyvinyl alcohol was added to the reaction tank and dissolved in 2,000 g of distilled water to prepare an aqueous phase.

200 grams of methyl methacrylate (MMA) and 25 grams of ethylene glycol dimethacrylate were added to the emulsification machine and stirred for 5 minutes. Further, 75 g of bisethylhexyloxyphenol methoxyphenyltriazine (BEMT) was added thereto and dissolved for 30 minutes to prepare an oil phase. Subsequently, 3 g of 2,2'-azobis-(2,4-dimethylvaleronitrile) was added as an initiator and mixed.

Subsequently, the aqueous phase was added to an emulsification machine, and then the resultant mixture was subjected to dispersion polymerization for 30 minutes using an emulsification machine, and reacted at 50 ° C for 15 hours by raising the temperature.

The obtained multiphase dispersed fine particles were dehydrated using a vacuum filter, washed 3 times with water, and then vacuum dried to obtain hemispherical particles finally containing 25% by weight of bisethylhexyloxyphenol methoxyphenyltriazine ( Yield = 90%, average diameter of the particles = 2 microns, see Figure 1a and Figure 1b).

The hemispherical particles obtained by the method described above are used for measuring the oil absorption (internal measurement under the control of the substrate oil absorption amount JIS K 5101-13-1 at room temperature (23 ° C)) ).

Therefore, it was confirmed that the hemispherical particles obtained by the method described above had an oil absorption of 0.888 ml/g and a total immersion volume of 1.37 ml/g. Compared with the conventional oil absorption and total immersion volume of conventional poly(methyl methacrylate) (PMMA) spherical particles, these values correspond to an oil absorption of 150% or more and 210% or more. % total immersion volume.

Further, the hemispherical microparticles obtained by the method described above can be stably dispersed in a polyol (for example, butylene glycol) or an anthraquinone oil (for example, phenyltrimethylpolyoxane), and No precipitation of bis-hexyloxyphenol methoxy phenyl triazine was observed during storage (see Figures 2a to 2d)

(Preparation Example 2)

Spherical particles finally containing 28% by weight of bisethylhexyloxyphenol methoxyphenyltriazine (yield = 92%, average diameter of the particles = 2.2 μm) were obtained in the same manner, except in the preparation example. The method of 1 uses 205.4 grams of methyl methacrylate (MMA), 25.6 grams of ethylene glycol dimethacrylate, and 69 grams of bisethylhexyloxyphenol methoxyphenyl triazine (BEMT). ).

(Example 1 to Example 6)

Each of the aqueous form cosmetic compositions was prepared using the compositions shown in Table 1 below.

Specifically, the components of the oil phase portion are mixed, uniformly dispersed and dissolved. The components of the aqueous phase portion were mixed, dissolved, and added to the heating component of the oil phase portion, and then each of the resulting mixtures was emulsified using a homogenizer to prepare each of the aqueous hydrazine type cosmetic compositions.

(Comparative Example 1 and Comparative Example 2)

Each of the hydrazine-type cosmetic compositions was prepared by using the compositions shown in Table 2 below and performing the same method as in the above examples.

(Table 1)
(Table 2)
(table 3)
(Table 4)

It was confirmed that in the hydrazine type cosmetic composition according to the present invention, the problem of crystal precipitation of bisethylhexyloxyphenol methoxyphenyl triazine due to solubility problem can be solved.

Specifically, as shown in FIG. 3a, FIG. 3b, FIG. 4a and FIG. 4b below, it is confirmed that in the composition of the leeches type according to the present invention, when the composition is observed by an optical microscope and a polarizing microscope, An extremely stable formulation is maintained without crystal precipitation of phenyl benzimidazole bisethylhexyloxyphenol methoxyphenyl triazine.

Further, as shown in FIG. 7a and FIG. 7b as follows, the leeches type cosmetic composition according to the present invention may be a phenyl benzimidazole compound which is one of organic sunscreens applied to the aqueous phase. The combination imparts synergy to the SPF and UV blocking effects throughout the UV wavelength region. In particular, it was confirmed that according to the combination, the phenyl benzimidazole compound applied to the aqueous phase can be more stably applied to the formulation without precipitation.

On the other hand, as shown in Fig. 5a and Fig. 5b below, in Comparative Example 1, the phenomenon that bisethylhexyloxyphenol methoxyphenyltriazine precipitated as crystal immediately after preparation of the formulation was confirmed. Further, as shown in Fig. 6a and Fig. 6b as follows, in Comparative Example 2, a phenomenon in which a phenyl benzimidazole compound applied to an aqueous phase was precipitated as a crystal was observed with a polarizing microscope.

Meanwhile, based on the results of the sensory evaluation, it was confirmed that the leeches cosmetic composition according to the present invention is a formulation which can provide both a light feeling and a non-stick feeling at the time of use, and a residual feeling and a thickness feeling which are excellent in adhesion.

Specifically, as shown in Figs. 8 to 10 below, the leeches cosmetic composition according to the present invention provides a close adhesion with a proper thickness feeling while imparting a soft but non-sticky feeling when applied to the skin. In addition, the silkiness and softness are provided even after application, and at the same time, the residual feeling and the oiliness are lowered, thereby increasing the feeling of use. In contrast to the results obtained when a commercially available w/s cream was used as a control group, these feelings of use were apparent, which means that the use feeling of the present invention was higher than that of the control group.

Further, as shown in Table 4, it was confirmed that the leeches type cosmetic composition according to the present invention can be safely used because it is non-irritating to the skin.

In the above, although the invention has been described in terms of specific materials, limited examples, and the accompanying drawings, they are merely used to assist in a complete understanding of the invention. Accordingly, the invention is not limited to the illustrative embodiments. Various modifications and changes of the present invention are possible in the present invention.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and all equivalent or equivalent modifications of the scope of the claims and the scope of the invention are intended to be within the scope and spirit of the invention.

Figure 1a is a scanning electron microscope (SEM) image of a microparticle of the invention (scale bar 20 microns).

Figure 1b is a scanning electron microscope (SEM) image of a microparticle of the invention (scale bar 2 microns).

Figure 2a is an image (optical magnification 200) of the inventive microparticles dispersed in butylene glycol (BG) as observed by an optical microscope.

Fig. 2b is an image (polarization magnification 200) of the microparticles of the present invention dispersed in butanediol (BG) as observed by an optical microscope.

Figure 2c is an image (optical magnification 200) of the inventive microparticles dispersed in phenyltrimethylpolyoxane as observed by an optical microscope.

Fig. 2d is an image (polarization magnification 200) of the microparticles of the present invention dispersed in phenyltrimethylpolyoxane observed by an optical microscope.

Fig. 3a is an image (optical magnification 200) of the cosmetic composition of Example 1 of the present invention observed by an optical microscope.

Fig. 3b is an image (polarization magnification 200) of the cosmetic composition of Example 1 of the present invention observed by an optical microscope.

Fig. 4a is an image (optical magnification 200) of the cosmetic composition of Example 2 of the present invention observed by an optical microscope.

Fig. 4b is an image (polarization magnification 200) of the cosmetic composition of Example 2 of the present invention observed by an optical microscope.

Fig. 5a is an image (optical magnification 200) of the cosmetic composition of Comparative Example 1 of the present invention observed by an optical microscope.

Fig. 5b is an image (polarization magnification 200) of the cosmetic composition of Comparative Example 1 of the present invention observed by an optical microscope.

Fig. 6a is an image (optical magnification 200) of the cosmetic composition of Comparative Example 2 of the present invention observed by an optical microscope.

Fig. 6b is an image (polarization magnification 200) of the cosmetic composition of Comparative Example 2 of the present invention observed by an optical microscope.

Fig. 7a is an image (optical magnification 200) of the cosmetic composition of Example 3 of the present invention observed by an optical microscope.

Fig. 7b is an image (polarization magnification 200) of the cosmetic composition of Example 3 of the present invention observed by an optical microscope.

Fig. 8 shows the results of evaluation regarding the feeling of use at the time of coating each sample of Example 3 and the w/s cream control group as a result of sensory evaluation according to the present invention.

Fig. 9 shows the results of evaluation regarding the feeling of use after coating each sample of Example 3 and the w/s cream control group as a result of sensory evaluation according to the present invention.

Figure 10 shows the results of the total sensory evaluation in accordance with the present invention.

Claims (13)

A leeches type cosmetic composition comprising: The microparticles comprise bisethylhexyloxyphenol methoxyphenyl triazine. The leech type cosmetic composition according to claim 1, wherein the microparticles comprise the diethylhexyloxy group in an amount of 20% by weight or more by weight based on the total weight of the microparticles. Phenyl methoxy phenyl triazine. The leech type cosmetic composition according to claim 2, wherein the microparticles are hemispherical. The leech type cosmetic composition of claim 1, wherein the microparticles have an average diameter ranging from 1 micrometer to 10 micrometers. The hydrazine-type cosmetic composition according to claim 1, further comprising: a phenyl benzimidazole compound and a cyclodextrin compound in an aqueous phase. The hydrazine-type cosmetic composition according to claim 5, wherein the composition comprises the phenylbenzimidazole compound in a weight ratio of 1:0.1 to 1:10 and the cyclodextrin Class of compounds. The leech type cosmetic composition according to claim 5, wherein the composition has a pH of 7.5 or more. The leech type cosmetic composition according to claim 5, wherein the composition satisfies the following relational expression 1: [Relational expression 1] 0.1 ≤ B/A ≤ 1.0 In relational expression 1, A is the amount (in grams) of the bisethylhexyloxyphenol methoxyphenyl triazine used, and B is the amount (in grams) of the phenyl benzimidazole compound used. The leech type cosmetic composition according to claim 1, wherein the composition comprises 0% by weight to 1% by weight, based on the total weight of the composition, of the polar oil, the polar oil comprising At least one polar functional group selected from the group consisting of a carboxyl group (COO), a ketone group (CO), and a hydroxyl group (OH). The composition of the leeches type cosmetics as described in claim 1 of the patent application further includes: A terpene surfactant added with polyethylene glycol. The leech type cosmetic composition according to any one of claims 1 to 10, wherein the composition is for blocking ultraviolet light. The leech type cosmetic composition according to any one of claims 1 to 10, wherein the composition comprises the content of 0.1% by weight to 10% by weight based on the total weight of the composition. % of the bisethylhexyloxyphenol methoxyphenyl triazine. The hydrazine-type cosmetic composition according to claim 12, wherein the composition contains an organic UV sunscreen agent in an amount of 25% by weight or less, based on the total weight of the composition, And the composition has a sun protection factor (SPF) of 10 or more as calculated by the following Equation 1: [Equation 1] SPF = (the minimum amount of erythema applied to the skin portion of the hydrazine-type cosmetic composition) / (the minimum amount of erythema of the skin portion not coated with the hydrazine-type cosmetic composition).