Emulsion comprising fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer

Abstract

An aspect of the present invention relates to an emulsion comprising a fatty acid ester, a hydrocarbon-based volatile oil, and an acrylic acid-based polymer. An emulsion and a cosmetic composition comprising same according to an aspect of the present invention have excellent storage stability and exhibit skin moisturizing and skin texture-refining effects. In addition, the emulsion adheres thinly and strongly to the skin and thus exhibits the effect of significantly increasing the adhesion and longevity of a cosmetic composition for base makeup.

Description

Emulsion containing fatty acid ester, hydrocarbon volatile oil and acrylic acid polymer

[0001] It relates to an emulsion containing a fatty acid ester, a hydrocarbon-based volatile oil, and an acrylic acid-based polymer.

[0002]

[0003] Base makeup products are used to cover the skin while simultaneously creating a radiant complexion. Due to their inherent nature, most base makeup products tend to smudge or fade when exposed to external influences, and they can also cause caking or clumping over time.

[0004] To prevent such inconvenience and improve durability and adhesion, before using the base makeup product, a cosmetic composition is used to improve the adhesion and durability of the base makeup product and to fill in unevenness.

[0005] However, in the case of cosmetic compositions applied to the skin before using the above-mentioned base makeup products, there is a disadvantage in that the skin may become dry because they generally contain silicone, silicone elastomer, and powder, and these ingredients fill pores and block sebum secretion, and even when using the above-mentioned cosmetic compositions, phenomena such as flaking and pilling of the base makeup still occur.

[0006] Accordingly, the inventors of the present invention aim to provide an emulsion including fatty acid ester, hydrocarbon-based volatile oil and acrylic acid-based polymer, and a cosmetic composition including the same, which can provide a skin texture improvement effect by increasing skin moisture retention and maintaining moisture while reducing dryness without including silicone, silicone elastomer and powder, and can increase the adhesion and durability of base makeup products.

[0007]

[0008] One aspect is to provide an emulsion comprising a fatty acid ester, a hydrocarbon-based volatile oil, and an acrylic acid-based polymer.

[0009] Another aspect is to provide a cosmetic composition comprising the emulsion.

[0010]

[0011] One aspect provides an emulsion comprising a fatty acid ester, a hydrocarbon-based volatile oil, and an acrylic acid-based polymer.

[0012] In one specific example, the fatty acid ester is bis-diglyceryl polyacyladipate-2, glyceryl ricinoleate, glyceryl lanolate, dipentaerythrityl hexahydroxystearate / hexastearate / hexarosinate, dipentaerythrityl tetrahydroxystearate / tetraisostearate, phytosteryl isostearyl dimer dilinoleate, phytosteryl / isostearyl / cetyl / stearyl / behenyl dimer It may be at least one selected from the group consisting of Phytosteryl / Isostearyl / Cetyl / Stearyl / Behenyl Dimer Dilinoleate and Bis-Behenyl / Isostearyl / Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, and specifically, it may be Bis-Diglyceryl Polyacyladipate-2.

[0013] In one specific example, the fatty acid ester may be included in an amount of 0.1 to 15 wt% relative to the total weight of the emulsion, specifically, 1 to 10 wt%, and more specifically, 2 to 7 wt%. For example, the fatty acid ester may be included in an amount of 2 to 7 wt%, 2 to 5 wt%, 2 to 3.5 wt%, 3.5 to 7 wt%, 3.5 to 5 wt%, or 5 to 7 wt% relative to the total weight of the emulsion.

[0014] The fatty acid esters described above possess high moisture-binding properties and can be utilized in compositions for improving skin hydration. They also act as film-forming agents, thereby increasing the adhesion of makeup products. Specifically, when an emulsion containing the fatty acid esters is applied to the skin, a film is formed on the skin, increasing the skin's moisture retention rate and significantly increasing the adhesion of base makeup that does not contain film-forming agents.

[0015] More specifically, when the emulsion comprises the fatty acid ester in an amount of 0.1 to 15 wt% based on the total weight of the emulsion, the emulsion significantly increases the moisture retention rate of the skin and the adhesion of a base makeup cosmetic composition that does not include a film-forming agent, whereas when the emulsion comprises the fatty acid ester in an amount of 0.1 wt% or less based on the total weight of the emulsion, the adhesion of the base makeup product that does not include a film-forming agent decreases, and when the emulsion comprises the fatty acid ester in an amount of 15 wt% or more based on the total weight, it may cause skin stickiness and clumping of the base makeup product that does not include a film-forming agent.

[0016] The above "adhesion" refers to the degree to which an emulsion and / or cosmetic composition adheres to the skin when applied to the skin. For example, the adhesion can be evaluated by applying a base makeup cosmetic composition to artificial leather or skin, allowing it to dry, and then measuring the degree to which it comes off when pressed with a tissue.

[0017] The above “stickiness” refers to the feeling of adhesiveness between the skin and the skin, between the skin and the hair, etc., by the user after application to the skin due to the high viscosity of the formulation of the emulsion and / or cosmetic composition itself, slow skin absorption, etc., and the stickiness can be evaluated using a physical property analyzer, viscometer, etc.

[0018] The above “clumping” refers to a situation where the emulsion and / or cosmetic composition is not evenly spread on the skin, and particles of the emulsion and / or cosmetic composition are gathered in a specific area. For example, the clumping can be evaluated by measuring hardness.

[0019] The above “hardness” refers to the physical properties of the emulsion and / or cosmetic composition formulation itself, i.e., the degree of hardness. In the case of a formulation with low hardness, it flows like water, and in the case of a formulation with high hardness, it can only be spread on the skin by applying strong force. In other words, the above hardness is a factor that affects the spreadability of the emulsion and / or cosmetic composition, and can be measured using a rheometer.

[0020] The above “spreadability” refers to the property of spreading when an emulsion and / or cosmetic composition is applied to the skin. As the hardness of the emulsion and / or cosmetic composition increases, the force applied to spread it on the skin increases, and the emulsion and / or cosmetic composition may not be evenly spread over the entire skin and may clump, and as the hardness decreases, the emulsion and / or cosmetic composition may flow off the skin, resulting in a decrease in the amount of the emulsion and / or cosmetic composition absorbed into the skin.

[0021] The above “film former” is an ingredient that forms a film on the skin and can be used interchangeably with the term “film former.”

[0022] The above “oil” may be vegetable oil, animal oil, mineral oil, mineral oil, natural oil and mixtures thereof.

[0023] In one specific example, the hydrocarbon-based volatile oil may be at least one selected from the group consisting of C8-20 straight-chain or branched-chain alkanes, paraffins, isoparaffins, and hydrogenated polyisobutenes, and specifically, may be hydrogenated polyisobutenes.

[0024] The above hydrocarbon-based volatile oil is an ingredient that helps to give the skin a glow and make the skin smooth, and when applied to the skin, it is applied thinly and adheres closely to the skin to form a protective film on the skin. Specifically, when an emulsion containing the hydrocarbon-based volatile oil is applied to the skin, the emulsion is applied thinly and adheres closely to the skin to refine the skin texture, thereby increasing the skin adhesion of a cosmetic composition for base makeup that does not include a film-forming agent, and the skin moisturizing power is also increased due to the formation of a protective film by the emulsion's adherence to the skin.

[0025] In one specific example, the viscosity of the hydrocarbon-based volatile oil may be 0.01 to 15 cps, and specifically, the viscosity of the hydrocarbon-based volatile oil may be 0.01 to 15 cps, 0.01 to 10 cps, 0.1 to 15 cps, 0.1 to 10 cps, 1 to 15 cps, or 1 to 10 cps.

[0026] When the above emulsion contains a hydrocarbon-based volatile oil having a viscosity of 0.01 to 15 cps, the hardness of the emulsion is 65 to 95 gf / mm. 2When the emulsion is formed into a film, it exhibits remarkably excellent spreadability when applied to the skin.

[0027] When the above emulsion contains a hydrocarbon-based volatile oil having a viscosity of less than 0.01 cps, the hardness of the emulsion is 65 gf / mm. 2 When the emulsion is formed to be less than 95 gf / mm, if the emulsion is applied to the skin, it may flow off the skin and the amount of the emulsion absorbed into the skin may be reduced, and when the emulsion contains a hydrocarbon-based volatile oil having a viscosity of more than 15 cps, the hardness of the emulsion may be less than 95 gf / mm. 2 When the emulsion is formed in excess and applied to the skin, the force applied to spread it on the skin increases, and the emulsion may not spread evenly over the entire skin and may clump.

[0028] In one specific example, the hydrocarbon-based volatile oil may be included in an amount of 1 to 15 wt% relative to the total weight of the emulsion, specifically, 3 to 12 wt%, and more specifically, 5 to 10 wt%. For example, the hydrocarbon-based volatile oil may be included in an amount of 5 to 10 wt%, 5 to 8 wt%, 5 to 6.5 wt%, 6.5 to 10 wt%, 6.5 to 8 wt%, or 8 to 10 wt% relative to the total weight of the emulsion.

[0029] Specifically, when the hydrocarbon-based volatile oil is included in an amount of 1 to 15 wt% based on the total weight of the emulsion, the spreadability of the emulsion is increased, and the skin adhesion of the fatty acid ester included in the emulsion is increased, thereby helping to moisturize the skin. On the other hand, when the hydrocarbon-based volatile oil is included in an amount of less than 1 wt% based on the total weight of the emulsion, the skin adhesion of the fatty acid ester included in the emulsion is reduced, and when the hydrocarbon-based volatile oil is included in an amount of more than 15 wt% based on the total weight of the emulsion, dryness of the skin is induced.

[0030] In one specific example, the acrylic acid polymer may be at least one selected from the group consisting of Acrylates C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Ammonium Acryloyldimethyltaurate VP Copolymer, Ammonium Acryloyldimethyltaurate Beheneth-25 Methacrylate Crosspolymer, Sodium Polyacrylate, Polyacrylate and Hydroxyethyl Acrylate Sodium Acryloyldimethyl Taurate Copolymer, and specifically, Acrylates C10-30 Alkyl Acrylate It may be at least one selected from the group consisting of a crosspolymer (Acrylates C10-30 Alkyl Acrylate Crosspolymer) and a carbomer, and more specifically, it may be an acrylates C10-30 alkyl acrylate crosspolymer and a carbomer.

[0031] In one specific example, the acrylic acid polymer may be included in an amount of 0.01 to 0.5 wt% relative to the total weight of the emulsion, and specifically, may be included in an amount of 0.1 to 0.5 wt%. For example, the acrylic acid polymer may be included in an amount of 0.1 to 0.5 wt%, 0.1 to 0.4 wt%, 0.1 to 0.3 wt%, 0.1 to 0.2 wt%, 0.2 to 0.5 wt%, 0.2 to 0.4 wt%, 0.2 to 0.3 wt%, 0.3 to 0.5 wt%, 0.3 to 0.4 wt%, or 0.4 to 0.5 wt% relative to the total weight of the emulsion.

[0032] The above acrylic acid polymer is used as a thickener and emulsifying stabilizer, and the lipophilic portion is absorbed at the interface between oil and water, and the hydrophilic portion swells in water to form a gel-like network around the oil, thereby enabling the oil to be dispersed in water. The acrylic acid polymer can react with a fatty alcohol or a fatty acid ester to increase the moisture content in the composition. Specifically, when an emulsion containing the acrylic acid polymer is applied to the skin, the emulsion exhibits remarkably excellent storage stability, and when the emulsion is applied to the skin, it provides a high content of moisture to the skin, thereby increasing the skin's moisture retention rate and maintaining a high skin moisture retention rate.

[0033] The above “storage stability” means that when an emulsion and / or cosmetic composition is stored for a certain period of time (e.g., one week, one month, three months, etc.) at a specific temperature (e.g., -5°C, 25°C, 40°C, 50°C) or under conditions where the temperature changes (e.g., changes from -10 to 40°C), the particles in the emulsion and / or cosmetic composition do not clump together, do not sediment, and do not separate the oil phase and the water phase, and the particles remain stably dispersed. In addition, the storage stability can be used interchangeably with emulsion stability.

[0034] More specifically, when the acrylic acid-based polymer is included in an amount of 0.01 to 0.5 wt% based on the total weight of the emulsion, the emulsion has increased emulsion stability, exhibiting excellent storage stability. In addition, since the composition can contain a large amount of moisture, the amount of moisture retained by the skin can be increased through application of the emulsion. On the other hand, when the acrylic acid-based polymer is included in an amount of less than 0.01 wt% based on the total weight of the emulsion, the emulsion has a significantly reduced emulsion stability, and when the acrylic acid-based polymer is included in an amount of more than 0.5 wt% based on the total weight of the emulsion, the texture of the emulsion becomes hard, making it difficult to apply to the skin.

[0035] In one specific example, the emulsion may include the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1. Specifically, the emulsion may contain the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, 2 to 15:10 to 20:1, 2 to 5:10 to 20:1, 5 to 35:10 to 20:1, 5 to 15:10 to 20:1, 2 to 35:10 to 17:1, 2 to 15:10 to 17:1, 2 to 5:10 to 17:1, 5 to 35:10 to 17:1, or 5 to 15:10 to 17:1.

[0036] In the case of an emulsion comprising the fatty acid ester, the hydrocarbon-based volatile oil, and the acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, when the fatty acid ester is included in a weight ratio of less than 2 or more than 35 and / or the hydrocarbon-based volatile oil is included in a weight ratio of less than 10 or more than 20 based on the weight of the acrylic acid-based polymer (for example, when the fatty acid ester, the hydrocarbon-based volatile oil, and the acrylic acid-based polymer are included in a weight ratio of 1:10 to 20:1, 2 to 35:25 to 30:1, or 40 to 45:1 to 5:1, etc.), the emulsification stability and storage stability, the adhesion and durability of the base makeup composition that does not include a film-forming agent are significantly increased, and the moisture retention capacity of the skin is increased.

[0037] In one specific example, the emulsion may further comprise one or more selected from the group consisting of a non-volatile oil, vegetable butter, and a surfactant. Specifically, the emulsion may further comprise a non-volatile oil, vegetable butter, and a surfactant. For example, the emulsion may comprise a fatty acid ester, a hydrocarbon-based volatile oil, an acrylic acid-based polymer, a non-volatile oil, vegetable butter, and a surfactant.

[0038] In one specific example, the non-volatile oil may be at least one selected from the group consisting of squalane, caprylic / capric triglyceride, hydrogenated polydecene alpha-olefin oligomer, neopentyl glycol diheptanoate and triethylhexanoin, and specifically, squalane and neopentyl glycol diheptanoate.

[0039] In one specific example, the nonvolatile oil may be included in an amount of 1 to 10 wt% relative to the total weight of the emulsion, and specifically, 3 to 10 wt%. For example, the nonvolatile oil may be included in an amount of 3 to 10 wt%, 3 to 8 wt%, 3 to 5 wt%, 5 to 10 wt%, 5 to 8 wt%, or 8 to 10 wt% relative to the total weight of the emulsion.

[0040] In one specific example, the vegetable butter may be at least one selected from the group consisting of shea butter, murumuru butter, mango butter, cocoa butter, olive butter, and babassu butter, and specifically may be shea butter.

[0041] In one specific example, the vegetable butter may be included in an amount of 0.1 to 3 wt% relative to the total weight of the emulsion. For example, the vegetable butter may be included in an amount of 0.1 to 3 wt%, 0.1 to 1.5 wt%, or 1.5 to 3 wt% relative to the total weight of the emulsion.

[0042] In one specific example, the surfactant may be at least one selected from the group consisting of polyglyceryl-3 methyl glucose distearate, glyceryl stearate, sorbitan stearate, polyglyceryl-2 stearate, cetearyl alcohol, and stearyl alcohol, and specifically, may be polyglyceryl-3 methyl glucose distearate, glyceryl stearate, sorbitan stearate, and cetearyl alcohol.

[0043] In one specific example, the surfactant may be included in an amount of 1 to 10 wt%, specifically, 3 to 10 wt%, based on the total weight of the emulsion. For example, the nonvolatile oil may be included in an amount of 3 to 10 wt%, 3 to 8 wt%, 3 to 5 wt%, 5 to 10 wt%, 5 to 8 wt%, or 8 to 10 wt%, based on the total weight of the emulsion.

[0044] In one specific example, the emulsion may include the fatty acid ester, hydrocarbon-based volatile oil, acrylic acid-based polymer, non-volatile oil, vegetable butter, and surfactant in a weight ratio of 2 to 35:10 to 20:1:5 to 15:1 to 5:10 to 15. Specifically, the emulsion comprises the fatty acid ester, hydrocarbon-based volatile oil, acrylic acid-based polymer, nonvolatile oil, vegetable butter and surfactant in a ratio of 2 to 35:10 to 20:1:5 to 15:1 to 5:10 to 15, 2 to 15:10 to 20:1:5 to 15:1 to 5:10 to 15, 2 to 5:10 to 20:1:5 to 15:1 to 5:10 to 15, 2 to 5:10 to 20:1:5 to 15:1 to 5:10 to 15, 5 to 35:10 to 20:1:5 to 15:1 to 5:10 to 15, 5 to 15:10 to 20:1:5 to 15:1 to 5:10 to 15, 2 to 35: It may be included in a weight ratio of 10 to 17: 1: 5 to 15: 1 to 5: 10 to 15, 2 to 15: 10 to 17: 1: 5 to 15: 1 to 5: 10 to 15, 2 to 5: 10 to 17: 1, 5 to 35: 10 to 17: 1: 5 to 15: 1 to 5: 10 to 15 or 5 to 15: 10 to 17: 1: 5 to 15: 1 to 5: 10 to 15.

[0045] In the case of an emulsion comprising the fatty acid ester, hydrocarbon-based volatile oil, acrylic acid-based polymer, non-volatile oil, vegetable butter, and surfactant in a weight ratio of 2 to 35: 10 to 20: 1: 5 to 15: 1 to 5: 10 to 15, when the fatty acid ester is included in a weight ratio of less than 2 or more than 35, the hydrocarbon-based volatile oil is included in a weight ratio of less than 10 or more than 20, the non-volatile oil is included in a weight ratio of less than 5 or more than 15, the vegetable butter is included in a weight ratio of less than 1 or more than 5, and / or the surfactant is included in a weight ratio of less than 10 or more than 15, the emulsification stability and storage stability, the adhesion and durability of a base makeup composition that does not include a film-forming agent are significantly increased, and the moisture retention capacity of the skin is increased.

[0046] In one specific embodiment, the emulsion may further comprise additional ingredients. The "additional ingredients" may include, for example, functional ingredients such as skin conditioning agents, moisturizers, viscosity-reducing agents, stabilizers, neutralizers, thickeners, antioxidants, UV blockers, pigments, fragrances, and preservatives, or effective ingredients effective in moisturizing the skin, improving skin elasticity, and regenerating the skin. For example, it may further contain Arginine, Propanediol, Caprylyl Glycol, Butylene Glycol, 1,2 Hexandiol, Ethylhexylglycerin, Hydroxyacetophenone, Vitamin A, Vitamin B, Vitamin C, Vitamin E, Vitamin Derivatives, Collagen, Ceramide, Peptide, Adenosine, Arbutin, Hyaluronic Acid, Chondroitin Sulfate, Alpha-bisabolol, Guaiazulene, Coenzyme Q10, etc.

[0047] The above “emulsion” is a type of colloid formed by dispersing one liquid in another liquid from two immiscible liquids (e.g., oil phase and water phase), and may be used interchangeably with emulsion.

[0048] In one specific example, the emulsion may be composed of an aqueous phase comprising an acrylic acid polymer; and an oil phase comprising a fatty acid ester and a hydrocarbon-based volatile oil. Specifically, the emulsion may be composed of an aqueous phase comprising an acrylic acid polymer; and an oil phase comprising a fatty acid ester, a hydrocarbon-based volatile oil, a non-volatile oil, vegetable butter, and a surfactant.

[0049] In one specific example, the emulsion may be an oil-in-water (O / W), a water-in-oil (W / O), a water-in-oil-in-water (W / O / W), or an oil-in-water-in-oil (O / W / O), and specifically, may be an oil-in-water (O / W) or a water-in-oil (W / O). Specifically, the emulsion may be an oil-in-water (O / W).

[0050] For example, when the volume of the aqueous phase solution is greater than the volume of the oil phase solution, an oil-in-water emulsion is produced in which the oil phase is dispersed in the aqueous phase, and when the volume of the oil phase solution is greater than the volume of the aqueous phase solution, a water-in-oil emulsion is produced in which the water phase is dispersed in the oil phase.

[0051] In one specific example, the hardness of the emulsion is 65 to 95 gf / mm. 2 may be, specifically, 65 to 95 gf / mm 2 , 65 to 85 gf / mm 2 , 65 to 75 gf / mm 2 , 75 to 95 gf / mm 2 , 75 to 85 gf / mm 2 or 85 to 95 gf / mm 2 It could be.

[0052] The hardness of the emulsion is 65 to 95 gf / mm depending on the aspect. 2 In this case, the emulsion exhibits remarkably excellent spreadability. Specifically, the hardness is 65 gf / mm. 2 If an emulsion of less than 95 gf / mm is applied to the skin, it may flow off the skin and reduce the skin absorption of the emulsion, and if the hardness is less than 95 gf / mm, 2 When an excessive amount of emulsion is applied to the skin, the force applied to spread it on the skin increases, and the emulsion may not spread evenly over the entire skin and may clump.

[0053] In one experimental example, when the emulsion contains the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, about 80 gf / mm 2 It was confirmed that the emulsion exhibited a hardness of , was not thin and ran down when applied to the skin, and could be spread evenly without applying strong force. In other words, it was confirmed that a cosmetic composition with remarkably excellent spreadability and adhesion could be manufactured by applying the emulsion (see Experimental Example 1).

[0054] In one specific example, the emulsion may maintain emulsion stability for at least 5 days when stored at -50 to 100°C.

[0055] Specifically, the emulsion may maintain emulsion stability for 5 days to 1 year when stored at -50 to 100°C, and more specifically, may maintain emulsion stability for 5 days to 1 year when stored at -30 to 80°C. For example, the temperature at which the emulsion is stored may be -30 to 80°C, -5 to 80°C, 25 to 80°C, 50 to 80°C, -30 to 50°C, -5 to 50°C, 25 to 50°C, -30 to 25°C, -5 to 25°C, or -30 to -5°C; and the period at which the emulsion is stored may be 5 days to 1 year, 5 days to 6 months, 5 days to 3 months, 3 months to 1 year, 3 months to 6 months, or 6 months to 1 year.

[0056] For example, the emulsion maintains the same emulsion stability as at the time of manufacture without separation of layers or occurrence of sediment, etc. even after being stored at -5°C for one week, and the emulsion maintains the same emulsion stability as at the time of manufacture even after being stored for one month under conditions where the temperature changes from -20°C to 70°C.

[0057] The above “emulsion stability” means that the emulsion particles remain evenly dispersed, and specifically, it means a state in which no sedimentation occurs and the water phase and the oil phase do not separate when observed with the naked eye.

[0058] In one specific example, the emulsion stability may be at least one selected from the group consisting of suppression of sediment formation and suppression of water and oil phase separation, and specifically, may be both suppression of sediment formation and suppression of water and oil phase separation.

[0059] In one experimental example, it was confirmed that when the emulsion contains the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, a cosmetic composition having remarkably excellent storage stability can be manufactured without separation of layers or occurrence of precipitated substances and with the emulsion remaining stably dispersed despite temperature changes (-5 ℃, 25 ℃, 40 ℃, 50 ℃, Cycle (-10 to 40 ℃)) and time changes (one week) (see Experimental Example 2).

[0060] In one specific example, the emulsion may have one or more activities selected from the group consisting of improving the adhesion of a base makeup cosmetic composition, improving the staying power of a base makeup cosmetic composition, and moisturizing the skin. Specifically, the emulsion may have all of the activities of improving the adhesion of a base makeup cosmetic composition, improving the staying power of a base makeup cosmetic composition, and moisturizing the skin.

[0061] The above “cosmetic composition for base makeup” is a composition applied to adjust skin tone and texture before applying a color cosmetic composition to the skin, and includes, for example, foundation, powder, BB cream, concealer, makeup base (e.g., primer), etc. Specifically, the cosmetic composition for base makeup may not contain a film-forming agent.

[0062] The above “lasting power” means that after applying a base makeup cosmetic composition, the cosmetic composition remains on the skin without being removed by skin oil, sweat, etc. The lasting power can be evaluated by applying a base makeup cosmetic composition to artificial leather, allowing it to dry, then applying artificial sebum, and measuring the extent to which it comes off when pressed with a tissue.

[0063] In one specific example, the skin moisturizing may be at least one selected from the group consisting of increasing the moisture retention rate of the skin compared to the initial moisture retention rate of the skin and maintaining the moisture retention rate of the skin, and specifically, the skin moisturizing may be both increasing the moisture retention rate of the skin compared to the initial moisture retention rate of the skin and maintaining the moisture retention rate of the skin.

[0064] In one specific example, the increase in the moisture retention rate of the skin may be an increase of 5 to 90% in the moisture retention rate of the skin compared to the initial moisture retention rate of the skin, and specifically, the increase in the moisture retention rate of the skin may be an increase of 5 to 90%, 5 to 60%, 5 to 30%, 30 to 90%, 30 to 60%, or 60 to 90% in the moisture retention rate of the skin compared to the initial moisture retention rate of the skin.

[0065] In one specific example, the maintenance of the skin's moisture retention rate may be maintained in a state in which the skin's moisture retention rate is increased compared to the initial skin moisture retention rate or in a state identical to the initial skin moisture retention rate for at least 5 minutes. Specifically, the maintenance of the skin's moisture retention rate may be maintained in a state in which the skin's moisture retention rate is increased by 5 to 90% compared to the initial skin moisture retention rate for 5 minutes to 24 hours.

[0066] For example, the moisture retention rate of the skin may be maintained at an increased level of 5 to 90%, 5 to 60%, 5 to 30%, 30 to 90%, 30 to 60%, or 60 to 90% compared to the initial moisture retention rate of the skin for 5 minutes to 24 hours, 5 minutes to 16 hours, 5 minutes to 8 hours, 5 minutes to 1 hour, 5 minutes to 30 minutes, 30 minutes to 24 hours, 30 minutes to 16 hours, 30 minutes to 8 hours, 30 minutes to 1 hour, 1 hour to 24 hours, 1 hour to 16 hours, 1 hour to 8 hours, 8 hours to 24 hours, 8 hours to 16 hours, or 16 hours to 24 hours.

[0067] In one experimental example, when the emulsion contains the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, when a foundation not containing a film-forming agent is applied after applying the emulsion, the amount of foundation that comes off is significantly reduced (see Experimental Example 3).

[0068] In addition, even when artificial sebum was applied after foundation application, the amount of foundation that came off was significantly reduced compared to the comparative example (see Experimental Example 4), confirming that the lifting of a cosmetic composition for base makeup that does not contain a film-forming agent due to skin oil can be reduced. In other words, it was confirmed that the emulsion can significantly increase the adhesion and durability of a cosmetic composition for base makeup that does not contain a film-forming agent.

[0069] In one experimental example, when the emulsion contained the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, when the emulsion was applied to the skin, it was confirmed that the skin's moisture retention rate increased by about 76% (about 49% increase) compared to before application (27%), confirming that the emulsion had an excellent effect on moisturizing the skin and was effective in improving skin texture (see Experimental Example 5).

[0070] In one experimental example, when the emulsion contained the fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:1, it was confirmed that the usability was significantly improved by showing excellent evaluations in spreadability, stickiness, moisturizing feeling, absorbency, adhesion, and foundation adhesion (see Experimental Example 6).

[0071] The above “feel of use” refers to the satisfaction with the emulsion and / or cosmetic composition that can be recognized when the emulsion and / or cosmetic composition is applied to the skin. For example, an improvement in the feeling of use refers to an increase in the user’s satisfaction with the spreadability, stickiness, moisturizing effect, absorbency, adhesion, or adhesion of a cosmetic composition for base makeup when the emulsion and / or cosmetic composition is applied to the skin.

[0072] The emulsion, which is applied in a thin layer, adheres strongly to the skin, forming a film on the skin to increase hydration, and has the effect of smoothing skin texture. Furthermore, the emulsion adheres thinly and strongly to the skin, significantly increasing the adhesion and durability of cosmetic compositions for base makeup.

[0073]

[0074] Another aspect provides a cosmetic composition comprising the emulsion.

[0075] The above terms “fatty acid ester”, “hydrocarbon-based volatile oil”, “acrylic acid-based polymer”, “emulsion”, etc. may be within the above-mentioned range.

[0076] In one specific example, the cosmetic composition may be at least one selected from the group consisting of a cosmetic composition for improving the adhesion of a base makeup cosmetic composition, a cosmetic composition for improving the staying power of a base makeup cosmetic composition, and a cosmetic composition for moisturizing the skin. Specifically, the cosmetic composition may be a cosmetic composition for improving the adhesion of a base makeup cosmetic composition, a cosmetic composition for improving the staying power of a base makeup cosmetic composition, and a cosmetic composition for moisturizing the skin.

[0077] In one specific example, the skin moisturizing may be at least one selected from the group consisting of increasing the moisture retention rate of the skin compared to the initial moisture retention rate of the skin and maintaining the moisture retention rate of the skin, and specifically, the skin moisturizing may be both increasing the moisture retention rate of the skin compared to the initial moisture retention rate of the skin and maintaining the moisture retention rate of the skin.

[0078] In one specific example, the increase in the moisture retention rate of the skin may be an increase of 5 to 90% in the moisture retention rate of the skin compared to the initial moisture retention rate of the skin, and specifically, the increase in the moisture retention rate of the skin may be an increase of 5 to 90%, 5 to 60%, 5 to 30%, 30 to 90%, 30 to 60%, or 60 to 90% in the moisture retention rate of the skin compared to the initial moisture retention rate of the skin.

[0079] In one specific example, the maintenance of the skin's moisture retention rate may be maintained in a state in which the skin's moisture retention rate is increased compared to the initial skin moisture retention rate or in a state identical to the initial skin moisture retention rate for at least 5 minutes. Specifically, the maintenance of the skin's moisture retention rate may be maintained in a state in which the skin's moisture retention rate is increased by 5 to 90% compared to the initial skin moisture retention rate for 5 minutes to 24 hours.

[0080] For example, the moisture retention rate of the skin may be maintained at an increased level of 5 to 90%, 5 to 60%, 5 to 30%, 30 to 90%, 30 to 60%, or 60 to 90% compared to the initial moisture retention rate of the skin for 5 minutes to 24 hours, 5 minutes to 16 hours, 5 minutes to 8 hours, 5 minutes to 1 hour, 5 minutes to 30 minutes, 30 minutes to 24 hours, 30 minutes to 16 hours, 30 minutes to 8 hours, 30 minutes to 1 hour, 1 hour to 24 hours, 1 hour to 16 hours, 1 hour to 8 hours, 8 hours to 24 hours, 8 hours to 16 hours, or 16 hours to 24 hours.

[0081] In one specific embodiment, the cosmetic composition may be prepared in any formulation commonly manufactured in the technical field to which the present invention pertains. For example, the cosmetic composition may be formulated as a solution, suspension, emulsion, paste, gel, cream, lotion, powder, soap, surfactant-containing cleanser, oil, powder foundation, emulsion foundation, wax foundation, spray, etc. Specifically, it can be manufactured into a formulation such as a toner such as a flexible toner or a nourishing toner, an emulsion such as a facial lotion or a body lotion, a cream such as a nourishing cream, a moisturizing cream, an eye cream, an essence, a cosmetic ointment, a spray, a gel, a pack, a sunscreen, a makeup base such as a liquid type, a solid type, or a spray type, a foundation such as a liquid type, a solid type, or a spray type, a powder, a color cosmetic (eye shadow, highlighter, blusher, etc.), a makeup remover such as a cleansing cream, cleansing lotion, or cleansing oil, a cleanser such as a cleansing foam, soap, or body wash, a liquid or gel formulation of mesotherapy that can be injected into the skin layer, and a formulation mixed with a hyaluronic acid gel.

[0082] The above cosmetic composition may further comprise any conventional cosmetic ingredient selected from additional ingredients commonly used in cosmetics, such as excipients, thickeners, dispersants, fragrances, fillers, preservatives, antiseptics, neutralizers, sweeteners, vitamins, free radical scavengers, metal ion sequestrants, functional ingredients, and mixtures thereof. A person skilled in the art can select any additional ingredient and / or its amount such that the advantageous properties of the composition according to one aspect are not or are substantially not adversely affected by the expected addition.

[0083] For example, the excipients may include surfactants, emulsifiers, soap acids, solvents, colorants, preservatives, antioxidants, antifoaming agents, antibacterial agents, anti-redeposition agents, enzymes, plant or mineral oils, fats, fluorescent substances, fungicides, hydrotropism inducers, moisturizers, fragrances, preservatives, proteins, silicones, solubilizers, sugar derivatives, sunscreens, vitamins, plant extracts, waxes, fatty acids, higher alcohols, hydrocarbon oils, ester oils, triglycerides, vegetable oils, and the like.

[0084] According to one aspect, the cosmetic composition may additionally include conventional auxiliary agents such as purified water, surfactants, moisturizers, lower alcohols, chelating agents, bactericidal agents, preservatives, antioxidants, stabilizers, solubilizers, vitamins, pigments, and fragrances, which are conventionally added to cosmetic compositions.

[0085] In addition, the cosmetic composition may be appropriately mixed with ingredients commonly used in external skin preparations such as cosmetics or medicines, such as aqueous ingredients, oily ingredients, powder ingredients, alcohols, moisturizers, thickeners, ultraviolet absorbers, whitening agents, preservatives, antioxidants, surfactants, fragrances, colorants, various skin nutrients, or combinations thereof, as needed. The above cosmetic composition may also appropriately contain sequestering agents such as sodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, and gluconic acid; caffeine, tannin, bellapamil, licorice extract, glabridin, hot water extract of the fruit of Kalin; various herbal medicines; drugs such as tocopherol acetate, glycyrrhizic acid, tranexamic acid and derivatives or salts thereof; and sugars such as vitamin C, magnesium ascorbic acid phosphate, ascorbic acid glucoside, arbutin, kojic acid, glucose, fructose, and trehalose.

[0086] When the above cosmetic composition is a surfactant-containing cleansing formulation, it may further include, as a carrier component, an aliphatic alcohol sulfate, an aliphatic alcohol ether sulfate, a sulfosuccinic acid monoester, an isethionate, an imidazolinium derivative, a methyl taurate, a sarcosinate, a fatty acid amide ether sulfate, an alkylamidobetaine, an aliphatic alcohol, a fatty acid glyceride, a fatty acid diethanolamide, a vegetable oil, a linolenic derivative, or an ethoxylated glycerol fatty acid ester.

[0087] In addition, when the cosmetic composition according to the aspect is in the form of a cream or gel formulation, it may further include animal oil, vegetable oil, wax, paraffin, starch, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc, or zinc oxide as a carrier component.

[0088] In addition, when the cosmetic composition is in the form of a solution or emulsion, it may further include a solvent, solvating agent or emulsifying agent such as water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, propylene glycol, glycerol aliphatic ester, polyethylene glycol or fatty acid ester of sorbitan.

[0089] If the above cosmetic composition is in the form of a suspension formulation, it may further include a liquid diluent such as water, ethanol or propylene glycol, a suspending agent such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar or tragacanth as a carrier component.

[0090] If the above cosmetic composition is in the form of a powder or spray formulation, it may further include lactose, talc, silica, aluminum hydroxide, calcium silicate or polyamide powder as a carrier component, and particularly if it is in the form of a spray formulation, it may further include a propellant such as chlorofluorohydrocarbon, propane / butane or dimethyl ether.

[0091] The above cosmetic composition may be applied alone or in combination, or may be applied in combination with other cosmetic compositions other than the cosmetic composition according to one aspect. Furthermore, all ingredients contained in the above cosmetic composition must not exceed the limits set by each country. Furthermore, the cosmetic composition according to one aspect may be used according to conventional methods, and the frequency of application may vary depending on the user's skin condition or preference.

[0092] A cosmetic composition comprising an emulsion according to one aspect exhibits excellent storage stability, adheres strongly to the skin when applied in a thin layer, forms a film on the skin to increase skin hydration, and has the effect of smoothing skin texture. In addition, the emulsion adheres thinly and strongly to the skin, significantly increasing the adhesion and durability of a cosmetic composition for base makeup.

[0093]

[0094] An emulsion and a cosmetic composition containing the same according to one aspect exhibit excellent storage stability and exhibit skin moisturizing and skin texture improvement effects. In addition, the emulsion adheres thinly and strongly to the skin, significantly increasing the adhesion and durability of a cosmetic composition for base makeup.

[0095]

[0096] Figure 1 is a diagram showing the results of a tissue-off test evaluating the foundation adhesion of an example emulsion.

[0097] Figure 2 is a diagram showing the results of a tissue-off test evaluating the foundation durability of an example emulsion.

[0098]

[0099] The present invention will be described in more detail below through examples. However, these examples are intended to exemplify the present invention and the scope of the present invention is not limited to these examples.

[0100]

[0101] <Manufacturing Example> Manufacturing of emulsions (Examples and Comparative Examples 1 to 8) to enhance the adhesion of makeup base products

[0102] Emulsions (Examples and Comparative Examples 1 to 8) containing fatty acid esters, hydrocarbon-based volatile oils, and acrylic acid-based polymers to enhance the adhesion of makeup base products were prepared in the composition ratios shown in Tables 1 to 3 below.

[0103] Specifically, after mixing the aqueous phase component and the thickener, the mixture was heated to 70°C to prepare the aqueous phase, and after mixing the oil phase component, the mixture was heated to 70°C to prepare the oil phase. After slowly adding the oil phase to the aqueous phase, the solution in which the aqueous phase and the oil phase were mixed was homogenized with a homogenizer to prepare an emulsified solution. After defoaming the emulsified solution, the solution was cooled to 30°C to prepare an emulsion.

[0104] Loss of differentiation Example (weight %) Comparative Example 1 (weight %) Comparative Example 2 (weight %) Comparative Example 3 (weight %) Comparative Example 4 (weight %) Oily component Bis-diglyceryl polyacyladipate-2 3.50-1.00 10.00 10.00 Hydrogenated polyisobutane (3~8 cps; Volatile) 5.00 5.00 5.00 5.00 5.00 5.00 Squalane 1.00 1.00 1.00 Neopentyl Glycol Diheptanoate 3.50 ... 0.500.50 Sorbitan Stearate 0.500.500.500.500.50 Thickener Acrylates / C10-30 Alkyl Acrylate Crosspolymer 0.300.300.300.300.300.30 Carbomer 0.100.100.100.100.10 Water Ingredient Butylene Glycol 5.005.005.005.005.00 Neutralizer 0.300.300.300.300.30 Preservative 1.001.001.001.001.00 Purified Water qs to 100.00

[0105] Loss of differentiation Example (weight %) Comparative Example 5 (weight %) Comparative Example 6 (weight %) Oily component Bis-diglyceryl polyacyladipate-23.50 3.50 3.50 Hydrogenated polyisobutane (3-8 cps; volatile) 5.00 Hydrogenated polyisobutane (20-50 cps; nonvolatile) -5.00 Hydrogenated polyisobutane (5,000 cps; Non-volatile)--5.00 Squalane 1.00 1.00 1.00 Neopentyl Glycol Diheptanoate 3.50 3.50 3.50 Shea Butter 1.00 1.00 1.00 Polyglyceryl-3 Methyl Glucose Distearate 2.00 2.00 2.00 Cetearyl Alcohol 2.50 2.50 2.50 Glyceryl Stearate 0.500. 500.50 Sorbitan Stearate 0.500.500.50 Thickener Acrylates / C10-30 Alkyl Acrylate Crosspolymer 0.300.300.30 Carbomer 0.100.100.10 Water Ingredient Butylene Glycol 5.00 5.00 5.00 Neutralizer 0.300.300.30 Preservative 1.00 1.00 1.00 Purified Water qs to 100.00

[0106] Loss of differentiation (weight %) Comparative example 7 (weight %) Comparative example 8 (weight %) Oily ingredient Bis-diglyceryl polyacyladipate-2 3.50 3.50 3.50 Hydrogenated polyisobutane (3-8 cps; volatile) 5.00 5.00 5.00 Squalane 1.00 1.00 1.00 Neopentyl glycol diheptanoate 3.50 3.50 3.50 Shea butter 1.00 1.00 1.00 Polyglyceryl-3 methyl glucose distearate 2.00 2.00 2.00 Cetearyl alcohol 2.50 2.50 2.50 Glyceryl stearate 0 .500.500.50 Sorbitan Stearate 0.500.500.50 Thickener Acrylates / C10-30 Alkyl Acrylate Crosspolymer 0.300.30 Carbomer 0.10-0.30 Water Ingredient Butylene Glycol 5.00 5.00 5.00 Neutralizer 0.300.300.30 Preservative 1.00 1.00 1.00 Purified Water qs to 100.00

[0107]

[0108] <Experimental Example 1> Hardness Evaluation of Emulsion

[0109] In order to evaluate the spreadability and adhesion of emulsions (Examples and Comparative Examples 1 to 8) containing fatty acid esters, hydrocarbon-based volatile oils, and acrylic acid-based polymers to enhance the adhesion of makeup base products, the hardness of the emulsions was measured.

[0110] Specifically, the samples of Examples and Comparative Examples 1 to 8 were stored in a constant temperature bath for 24 hours, and then the hardness was measured using a rheometer (FUDOH RHEOMETER). The hardness was measured at 25°C, and the measurement speed was set to 60 mm / min and the depth to 15 mm. The measurement results are shown in Table 4 below.

[0111] As shown in Table 4 below, as the content of fatty acid ester (bis-diglyceryl polyacyladipate-2) increases, the hardness increases (compare Examples; and Comparative Examples 1 to 4), and when the viscosity of hydrogenated polyisobutane is nonvolatile at 20 cps or more, the hardness is 110 gf / mm. 2 It was confirmed that the hardness increased as described above (Example; and Comparative Examples 5 and 6). In addition, it was confirmed that the hardness decreased when the acrylic acid polymer, acrylate / C10-30 alkyl acrylate crosspolymer and camober, were used in combination (Example) compared to when each was used alone (Comparative Examples 7 and 8).

[0112] Through the above experimental results, when the content of fatty acid ester is included in an amount of 1.5 to 9.5 wt% based on the total weight of the composition, the viscosity of hydrogenated polyisobutane, which is a hydrocarbon-based volatile oil, is 3 to 8 cps, and an acrylic acid-based polymer, acrylate / C10-30 alkyl acrylate crosspolymer and camober, is mixed and used as an acrylic acid-based polymer, the viscosity is 65 to 95 gf / mm 2Since it indicates the hardness of the product, it is not thin and runs down when applied to the skin as a cosmetic composition, and can be spread evenly without applying strong force.

[0113] That is, when using the emulsion manufactured with the composition of the above example, a cosmetic composition having remarkably excellent spreadability and adhesion is manufactured.

[0114] Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Hardness (gf / mm) 2 )806077671191121105538

[0115]

[0116] <Experimental Example 2> Evaluation of storage stability (emulsification stability) of emulsions

[0117] In order to evaluate the emulsification stability during storage of emulsions (Examples and Comparative Examples 1 to 8) containing fatty acid esters, hydrocarbon-based volatile oils, and acrylic acid-based polymers to enhance the adhesion of makeup base products, experiments were conducted as follows.

[0118] Specifically, Examples and Comparative Examples 1 to 8 were stabilized at 25°C for one day, then stored in a constant temperature bath at -5°C, 25°C, 40°C, and 50°C in a cycle (-10 to 40°C) for one week, and then observed for changes in the emulsion. The observation results are shown in Table 5 below.

[0119] As shown in Table 5 below, as the content of fatty acid ester (bis-diglyceryl polyacyladipate-2) increases, the emulsification stability increases (Example; and compare Comparative Examples 1 to 4), and as the viscosity of hydrogenated polyisobutane decreases, i.e., when volatile oil is used, the emulsification stability increases (Example; and compare Comparative Examples 5 and 6). In addition, it was confirmed that when an acrylate / C10-30 alkyl acrylate crosspolymer and a carbomer as acrylic acid polymers were mixed and used (Example), the emulsification stability decreased when each was used alone (Comparative Examples 7 and 8).

[0120] Through the above experimental results, when the content of fatty acid ester is included in an amount of 1.5 to 9.5 wt% based on the total weight of the composition, the viscosity of hydrogenated polyisobutane, which is a hydrocarbon-based volatile oil, is 3 to 8 cps, and an acrylic acid-based polymer, acrylate / C10-30 alkyl acrylate crosspolymer and a carbomer, are mixed and used, that is, when an emulsion prepared with the composition of the above example is used, the layers are not separated or precipitated substances are not generated, and the emulsion is stably dispersed, so that a cosmetic composition having remarkably excellent storage stability, that is, emulsification stability, is prepared.

[0121] ExampleComparative Example 1Comparative Example 2Comparative Example 3Comparative Example 4Comparative Example 5Comparative Example 6Comparative Example 7Comparative Example 8-5 ℃◎◎◎◎◎◎◎◎◎25 ℃◎◎◎◎◎◎◎◎◎40 ℃◎○○◎◎◎◎◎◎50 ℃◎○○○○◎○○○Cycle◎◎◎◎◎◎◎◎◎

[0122] ◎: Same as standard (no sedimentation or oil separation when observed with the naked eye), ○: Similar to standard with slight changes, △: Changes are observed but acceptable, X: Large changes occur

[0123]

[0124] <Experimental Example 3> Evaluation of Adhesion of Cosmetic Composition Containing Emulsion

[0125] In order to evaluate the adhesion of a cosmetic composition including an emulsion containing a fatty acid ester, a hydrocarbon-based volatile oil, and an acrylic acid-based polymer to enhance the adhesion of a makeup base product, Example and Comparative Example 1 were applied to artificial leather, respectively, and a tissue-off test was conducted.

[0126] Specifically, 0.2 g of Example and Comparative Example 1 were applied to artificial leather (6 cm * 6 cm), dried for 1 hour, 0.1 g of foundation was applied thereon, dried for 1 hour, a tissue was placed and pressed with a constant force, and the amount of foundation transferred to the tissue was visually confirmed. The foundation did not contain a film-forming agent, and the foundation composition was prepared with the composition shown in Table 6.

[0127] As shown in Fig. 1, it was confirmed that the amount of foundation transferred to the tissue was significantly reduced when the Example was applied compared to when no emulsion was applied (no application) and when Comparative Example 1 was applied.

[0128] According to the above results, it was confirmed that when a cosmetic composition including an emulsion prepared with the composition of the example is applied to the skin, a thin film is formed on the skin, thereby increasing the adhesion of a foundation that does not include a film-forming agent.

[0129] Classification Ingredients Oil-based ingredients Cyclopentasiloxane Cetyl PEG / PPG-10 / 1 Dimethicone Ethylhexyl Isononanoate Dimethicone & Dimethicone Crosspolymer & Dimethicone / Vinyl Dimethicone Crosspolymer Meadowfoam Seed Oil Hydrogenated C6-14 Olefin Polymer Disteardimonium Hectorite Polymethylsilsesquioxane Phenyl Trimethicone Sunscreen Organic Sunscreen Zinc Oxide Colorant Titanium Dioxide Red Iron Oxide, Yellow Iron Oxide, Black Iron Oxide Water-based ingredients Propylene Glycol Pentylene Glycol Preservative Niacinamide Adenosine Magnesium Sulfate Purified Water

[0130]

[0131] <Experimental Example 4> Evaluation of the durability of a cosmetic composition containing an emulsion

[0132] To evaluate the durability of a cosmetic composition comprising an emulsion containing fatty acid ester, hydrocarbon volatile oil, and acrylic acid polymer to enhance the adhesion of a makeup base product, durability against sebum was measured.

[0133] Specifically, 0.2 g of each of Examples, Comparative Examples 1 and 6 was applied to artificial leather (6 cm * 6 cm), dried for 1 hour, 0.1 g of foundation was applied thereon, dried for 1 hour, and the artificial leather was stood upright, artificial sebum was dropped and allowed to flow, and the degree to which the foundation did not adhere well and fell off due to the artificial sebum (hereinafter, the degree of collapse) was observed with the naked eye. Afterwards, a tissue was placed and pressed with a constant force, and the degree of foundation coming off onto the tissue was visually confirmed. Caprylic / capric triglyceride was used as the artificial sebum, and the foundation not containing a film-forming agent was manufactured with the same composition as in Experimental Example 3.

[0134] As shown in Fig. 2, it was confirmed that the amount of foundation transferred to the tissue was significantly reduced in the case where the example was applied compared to the case where no emulsion was applied (no application) and the cases where Comparative Examples 1 and 6 were applied.

[0135] According to the above results, when a cosmetic composition including an emulsion manufactured with the composition of the example is used, the emulsion forms a thin film on the skin, thereby significantly reducing the phenomenon in which the foundation does not adhere to the skin due to skin oil and comes off, thereby increasing the adhesion of a foundation that does not include a film-forming agent and the durability of makeup.

[0136]

[0137] <Experimental Example 5> Evaluation of moisturizing power of cosmetic composition containing emulsion

[0138] In order to evaluate the moisturizing power of a cosmetic composition containing an emulsion containing fatty acid ester, hydrocarbon-based volatile oil, and acrylic acid-based polymer to increase the adhesion of a makeup base product, a test was conducted to compare the skin moisture retention amount on test subjects using a skin moisture meter (Comeometer CM 825).

[0139] Specifically, the skin moisture retention of the test subjects was measured three times at each time point, based on the application of Examples and Comparative Examples 1 to 8 to the test subjects, before application, immediately after application, 10 minutes after application, 30 minutes after application, and 1 hour after application, and the average values ​​of the measured moisture retention rates (%) are shown in Table 7 below.

[0140] As shown in Table 7 below, in the case of an emulsion containing 3.50 wt% or more of fatty acid ester (bis-diglyceryl polyacyladipate-2) and using acrylate / C10-30 alkyl acrylate crosspolymer and carbomer as acrylic acid polymers, it was confirmed that the emulsion exhibited excellent moisturizing power immediately after application as well as moisturizing power retention.

[0141] Distinction application, immediately after application, 10 minutes, 30 minutes, 1 hour, Example 2776493433, Comparative example 12774362524, Comparative example 22474422826, Comparative example 32174423129, Comparative example 42576433332, Comparative example 52676493231, Comparative example 62575433331, Comparative example 72374493533, Comparative example 82374543125

[0142]

[0143] <Experimental Example 6> Evaluation of the feel of a cosmetic composition containing an emulsion

[0144] In order to evaluate the usability of a cosmetic composition comprising an emulsion containing a fatty acid ester, a hydrocarbon-based volatile oil, and an acrylic acid-based polymer to enhance the adhesion of a makeup base product, 12 test subjects were given cosmetic composition examples and comparative examples 1 to 8, and were asked to evaluate the spreadability, stickiness, moisturizing feeling, absorption, adhesion, and foundation adhesion of the formulation on a scale of 1 to 5. The average value of the evaluation results is shown in Table 8 below.

[0145] As shown in Table 8 below, when the examples were used, the evaluation scores were high in the spreadability, stickiness, moisturizing feeling, absorbency, adhesion, and foundation adhesion. On the other hand, when the fatty acid ester was not included (Comparative Example 1), the adhesion was evaluated as low, and when it was included at 10 wt% based on the total weight of the composition (Comparative Examples 3 and 4), the stickiness was evaluated as excessive. In addition, in Experimental Example 1, 110 gf / mm 2 Comparative examples 4 to 6, which showed the above hardness, showed low scores for all evaluation indices and were evaluated as having a low usability.

[0146] That is, it was confirmed that a cosmetic composition including an emulsion of the composition of the example exhibits an excellent overall feeling of use and can be utilized as a composition that plays a role in increasing the adhesion of a makeup base that does not include a film-forming agent.

[0147] Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Spreadability 4.33 3.75 3.75 3.08 2.92 3.25 3.00 4.42 3.67 Stickiness 4.08 3.67 4.08 1.83 2.75 3.33 2.42 4.33 3.83 Moisturizing 4.17 3.79 3.58 3.25 3.42 3.50 2.75 3.75 3.42 Absorption 3.79 3.75 3.42 2.75 2.83 3.25 2.58 4.00 3.33 Adhesion 4.17 3.83 4.08 3.25 3.08 3.42 3.00 3.92 2.83 Foundation Adhesion 4.293.503.923.833.173.253.004.173.25 <Evaluation> 5 points (very good), 4 points (good), 3 points (average), 2 points (bad), 1 point (very bad)

Claims

1. An emulsion containing fatty acid ester, hydrocarbon volatile oil, and acrylic acid polymer.

2. In claim 1, the fatty acid ester is bis-diglyceryl polyacyladipate-2, glyceryl ricinoleate, glyceryl lanolate, dipentaerythrityl hexahydroxystearate / hexastearate / hexarosinate, dipentaerythrityl tetrahydroxystearate / tetraisostearate, phytosteryl isostearyl dimer dilinoleate, phytosteryl / isostearyl / cetyl / stearyl / behenyl dimer. An emulsion comprising at least one selected from the group consisting of Phytosteryl / Isostearyl / Cetyl / Stearyl / Behenyl Dimer Dilinoleate and Bis-Behenyl / Isostearyl / Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate.

3. An emulsion according to claim 1, wherein the hydrocarbon-based volatile oil is at least one selected from the group consisting of C8-20 straight-chain or branched-chain alkanes, paraffins, isoparaffins, and hydrogenated polyisobutenes.

4. An emulsion according to claim 1, wherein the viscosity of the hydrocarbon-based volatile oil is 0.01 to 15 cps.

5. An emulsion according to claim 1, wherein the acrylic acid-based polymer is at least one selected from the group consisting of Acrylates C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Ammonium Acryloyldimethyltaurate VP Copolymer, Ammonium Acryloyldimethyltaurate Beheneth-25 Methacrylate Crosspolymer, Sodium Polyacrylate, Polyacrylate, and Hydroxethyl Acrylate Sodium Acryloyldimethyl Taurate Copolymer.

6. An emulsion according to claim 1, comprising the fatty acid ester, the hydrocarbon-based volatile oil, and the acrylic acid-based polymer in a weight ratio of 2 to 35:10 to 20:

1.

7. An emulsion according to claim 1, further comprising at least one selected from the group consisting of nonvolatile oil, vegetable butter, and surfactant.

8. In claim 1, the hardness of the emulsion is 65 to 95 gf / mm. 2 In, emulsion.

9. An emulsion according to claim 1, wherein the emulsion has at least one activity selected from the group consisting of improving the adhesion of a cosmetic composition for base makeup, improving the staying power of a cosmetic composition for base makeup, and moisturizing the skin.

10. An emulsion according to claim 9, wherein the skin moisturizing is at least one selected from the group consisting of increasing the moisture retention rate of the skin compared to the initial moisture retention rate of the skin and maintaining the moisture retention rate of the skin.

11. An emulsion according to claim 1, which is an oil-in-water (O / W) type, water-in-oil (W / O) type, water-in-oil-in-water (W / O / W) type, or oil-in-water-in-oil (O / W / O) type.

12. A cosmetic composition comprising the emulsion of claim 1.

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