KR20170062166A - Silicone-in-water type emulsion cosmetic composition comprising silicone oil - Google Patents

Abstract

The present invention relates to a silicone in water emulsion cosmetic composition comprising an amphiphilic anisotropic powder and a silicone oil, wherein the amphiphilic anisotropic powder comprises a first polymeric spheroid which is hydrophilic and a second polymeric spheroide which is hydrophobic, Wherein the polymeric spheroids and the second polymeric spheroids are at least partially bonded in a structure that penetrates the counterpart polymer spheroids, and wherein the first polymeric spheroids and the second polymeric spheroids comprise (meth) acrylate-based polymers, The cosmetic composition will be described.

Description

TECHNICAL FIELD The present invention relates to a silicone-type emulsion cosmetic composition containing a silicone oil and a silicone-type emulsion cosmetic composition containing the silicone oil,

TECHNICAL FIELD The present invention relates to a silicone-type emulsified cosmetic composition containing a silicone oil and a method for producing the same.

Silicone oil is used to impart a light feeling to cosmetics. When a silicone oil is used in the emulsified formulation, a water-in-silicone (W / S) formulation is used in which the external phase is silicone oil and the internal phase is water in view of ease of surfactant selection for emulsification.

Silicone-in-water (S / W), which is a silicone oil in the internal cavity and is a water-in-water, adds silky feeling of silicone and freshness of the external water to maximize fresh sensation. However, The interface film of the emulsified particles is unstable. Therefore, it is necessary to add a thickening agent, wax or the like to the trauma to increase the viscosity or hardness of the trauma and to use a specific surfactant in order to strengthen the interface film. As a result, there is a problem that a formulation prepared with a high viscosity by a surfactant and a thickening agent can not sufficiently exhibit the freshness to be implemented, and thus the use of the S / W formulation is limited.

The size and shape of the spherical fine particles made of the polymer are controlled according to the manufacturing method, and thus the application possibility is expanded. One of its applications is Pickering emulsion which can form stabilized macroporous particles using micro spherical particles. O / W emulsified particles are formed at a contact angle of 90 ° or more, and W / O emulsion particles are formed at a temperature of 90 ° or less depending on the degree of hydrophilicity / hydrophobicity of the spherical particles.

Attempts have been made to produce new anisotropic powders by imparting amphiphilic properties, both hydrophilic and hydrophobic, to the microspheres. An example is the Janus spherical particles. However, due to the morphological limitations of these spheres, there is a limit to the chemical anisotropy. In other words, although it is morphologically anisotropic, it is totally hydrophobic or hydrophilic, so that there is a limit to chemical anisotropy.

It has been attempted to produce anisotropic powders having surface activity by imparting chemical anisotropy together with geometric shape control. However, despite the advantage of its applicability of amphiphilic anisotropic powder, up to now, Has not been specifically developed, and there is a problem that it is difficult to mass-produce uniformly in the industry, so that no practical industrial application has been made.

The prior art of the present invention is disclosed in Korean Patent Publication No. 1997-0025588.

From the viewpoint of one aspect, a problem to be solved by the present invention is to provide an S / W type underwater type emulsion cosmetic material excellent in emulsion stability.

In another aspect, a problem to be solved by the present invention is to provide a cosmetic composition for cosmetics which is maximized in freshness without being tacky.

From another point of view, a problem to be solved by the present invention is to provide a cosmetic composition for emulsifying light feeling.

In another aspect, a problem to be solved by the present invention is to provide a cosmetic composition which is silky and can give a matte finish.

From another viewpoint, a problem to be solved by the present invention is to provide a cosmetic for emulsifying cosmetics having low viscosity and flowability and excellent stability.

From another point of view, a problem to be solved by the present invention is to provide an emulsified cosmetic composition which contains a sebum adsorbing powder and is excellent in emulsion stability.

In one aspect, the present invention is a silicone-type emulsion cosmetic composition in water comprising an amphiphilic anisotropic powder and a silicone oil,

The amphiphilic anisotropic powder may be an amorphous powder,

A first polymeric spheroid that is hydrophilic and a second polymeric spheroid that is hydrophobic,

Wherein the first polymeric spheroids and the second polymeric spheroids are at least partially bound to a structure that penetrates the counterpart polymeric spheroids,

Wherein the first polymer spolide and the second polymer spolide comprise a (meth) acrylate-based polymer.

From a point of view, the present invention can provide an S / W type emulsified cosmetic composition having excellent emulsion stability.

From another point of view, the present invention can provide an emulsified cosmetic material having maximized freshness without stickiness.

From another point of view, the present invention can provide an emulsifying cosmetic material having a light feeling.

From another viewpoint, the present invention can provide a cosmetic composition for emulsifying which can impart a silky and matte finish.

From another point of view, the present invention can provide a cosmetic composition having excellent flow stability and low viscosity.

From another point of view, the present invention can provide an emulsified cosmetic composition containing the sebum adsorbing powder and having excellent emulsion stability.

Embodiments of the present application will now be described in more detail with reference to the accompanying drawings. However, the techniques disclosed in the present application are not limited to the embodiments described herein but may be embodied in other forms. It should be understood, however, that the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the widths and thicknesses of components are slightly enlarged in order to clearly illustrate each component. In addition, although only a part of the components is shown for convenience of explanation, those skilled in the art can easily grasp the rest of the components. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention.

As used herein, unless otherwise defined, at least one hydrogen atom of the functional groups of the invention is optionally substituted with at least one substituent selected from the group consisting of halogen (F, Cl, Br or I), a hydroxy group, a nitro group, an imino group A substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, May be substituted with a substituted heterocycloalkyl group having 2-30 carbon atoms.

As used herein, "(meth) acrylic" may mean acryl and / or methacryl.

The particle size of the amphiphilic anisotropic powder herein is the maximum length measured as the longest length of the powder particle. The particle size range of the amphiphilic anisotropic powder herein means that at least 95% of the amphipathic anisotropic powder present in the composition falls within this range.

In the present specification, the average particle diameter of emulsified particles means an average value of the diameter of a single particle. In the present specification, the mean particle size range of the emulsified particles means that at least 95% of the emulsified particles present in the composition fall within the above range.

In the present specification, the average particle diameter of the sebum adsorbing powder means a volume average particle diameter obtained by calculating the volume average based on the particle size distribution measured by a known particle size distribution measurement method such as an electron microscope image observation, a laser diffraction method or the like .

According to one embodiment of the present invention, there is provided a silicone-in-water (S / W) type emulsified cosmetic composition comprising an amphiphilic anisotropic powder and a silicone oil.

In this embodiment, the silicone oil is present in an amount of at least 5 wt%, at least 6 wt%, at least 7 wt%, at least 8 wt%, at least 9 wt%, or at least 10 wt%, and at most 45 wt% , 44 weight% or less, 43 weight% or less, 42 weight% or less, 41 weight% or less, 40 weight% or less, 39 weight% or less, 38 weight% or less, 37 weight% or less, 36 weight% or less, 35 weight% or less Up to 34 wt.%, Up to 33 wt.%, Up to 32 wt.%, Up to 31 wt.%, Or up to 30 wt.%, For example from 5 wt.% To 45 wt.%, By weight to 40% by weight. Within this range, silicone emulsions in water can be formed.

Silicone oil can silicate the formulation and impart a light feel to it, and can form an emulsion of an emulsified formulation. Since the emulsifying cosmetic material according to this embodiment can form large emulsified particles as described later, the silicone oil in the emulsified particles can be discharged during application such as coating, giving a unique feeling of use.

For example, the silicone oil may be selected from the group consisting of dimethicone, cyclomethicone, alkyltrimethicone, methylphenylsiloxane, trisiloxane, and the like. For example, cyclomethicone, , Specifically, decamethylcyclopentasiloxane, trimethylsiloxysilicate, or the like can be used, but the present invention is not limited thereto.

According to this embodiment, it is possible to stably form a silicone-type emulsion composition containing silicone oil as an inner phase, thereby giving a maximized feeling of fresh feeling.

In one example, the viscosity of the composition may represent a flowable formulation of 7000 cps or less. A stable emulsion formulation can be formed without containing excessive thickening agent, wax, and surfactant, so that such a flexible low viscosity formulation can be realized. The viscosity may be, for example, greater than 1000 cps, greater than 1100 cps, greater than 1200 cps, greater than 1300 cps, greater than 1400 cps, greater than 1500 cps, greater than 1600 cps, greater than 1700 cps, greater than 1800 cps, greater than 1900 cps, 20,000 cps or less, 20,000 cps or less, 19,000 cps or less, 18000 cps or less, 17000 cps or less, 16000 cps or less, 15000 cps or less, 14000 cps or less 8000 cps or less, 8000 cps or less, 8000 cps or less, 8000 cps or less, 860 cps or less, cps or less, 8000 cps or less, 7900 cps or less, 7800 cps or less, 7700 cps or less, 7600 cps or less, 7500 cps or less, 7400 cps or less, 7300 cps or less, 7200 cps or less, 7100 cps or less, 7000 cps or less, 6900 cps or less , 6800 cps or less, 6700 cps or less, 6600 cps or less, 6500 cps or less, 6400 cps or less, 6300 cps or less, 6200 cps or less, 6100 cps Or less, or 6000 cps or less. For example, the viscosity may be 1,000 to 20,000 cps, 1,000 cps to 10,000 cps, 1,500 to 7,000 cps, or 2,000 to 6,000 cps. For example, from 1000 cps to 10000 cps, from 1000 cps to 3000 cps, or from 5000 cps to 7000 cps.

In this embodiment, the amphiphilic anisotropic powder comprises a first polymeric spheroid that is hydrophilic and a second polymeric spheroide that is hydrophobic, wherein the first polymeric sphereoid and the second polymeric sphereoid are at least partially composed of an opposite polymeric sphereoid And the first polymer spolide and the second polymer spolide may include a (meth) acrylate-based polymer.

As used herein, the term "spheroid" refers to a body made of a polymer, for example, a sphere, a globoid, or an oval shape, Or may have a long axial length of nano units.

According to one exemplary embodiment, the (meth) acrylate-based polymer may comprise a polymer of a monomer having an alkyl group.

According to one exemplary embodiment, the monomer having an alkyl group may include an unsubstituted (meth) acrylate ester having a linear or branched alkyl group having 1 to 20 carbon atoms. (Meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, (Meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, ethylhexyl (meth) acrylate, octyl Acrylate, decyl (meth) acrylate, lauryl (meth) acrylate, and the like.

In one embodiment, the first polymer spolide may further include a hydrophilic functional group.

For example, the hydrophilic functional group may be a functional group having a negative or positive charge or a polyethylene glycol (PEG) group, and may be a carboxylic acid group, a sulfonic group, a phosphate group, an amino group, an alkoxy group, an ester group, an acetate group, a polyethylene glycol group, And the like.

In one embodiment, the first polymer spolide may further include a sugar-containing functional group.

In one embodiment, the functional group containing the sugar is selected from the group consisting of N- {N- (3-triethoxysilylpropyl) aminoethyl} gluconamide, N- (3-triethoxysilylpropyl) - (3-triethoxysilylpropyl) aminoethyl} -oligo-hyaluronamide, and the like.

In one embodiment, the amphiphilic anisotropic powder may have a symmetrical shape, an asymmetric snowman shape, or an asymmetric inverse snowman shape based on the joint where the first polymer spoloid and the second polymer spoloid are combined. The shape of the snowman means that the first and second polymer spheroids having different sizes are combined.

In one example, the amphiphilic anisotropic powder may have a particle size of 100 to 2500 nm. In another aspect, the amphiphilic anisotropic powder may have a particle size of 100 to 1500 nm, 100 to 500 nm, or 200 to 300 nm. Specifically, the amphiphilic anisotropic powder preferably has a particle size of 100 nm or more, 200 nm or more, 300 nm or more, 400 nm or more, 500 nm or more, 600 nm or more, 700 nm or more, 800 nm or more, 900 nm or more, Or less, and 2500 nm or less, 2400 nm or less, 2300 nm or less, 2200 nm or less, 2100 nm or less, 2000 nm or less, 1900 nm or less Less than 1,100 nm, less than 1,100 nm, less than 1,000 nm, less than 900 nm, less than 800 nm, less than 700 nm, 600 nm or less, 500 nm or less, 400 nm or less, 300 nm or less, or 200 nm or less. In one embodiment, the amphiphilic anisotropic powder may form macro emulsion particles of 2 to 200 μm. In another aspect, the amphiphilic anisotropic powder may be one that forms macro emulsion particles having a size of 5 to 200 mu m, 10 to 100 mu m, 10 to 50 mu m, or 25 mu m. Specifically, the amphiphilic anisotropic powder may have an average particle size of 2 탆 or more, 5 탆 or more, 10 탆 or more, 15 탆 or more, 20 탆 or more, 25 탆 or more, 30 탆 or more, 40 탆 or more, 50 탆 or more, Not more than 150 탆, not more than 180 탆, not more than 200 탆, not more than 180 탆, not more than 150 탆, not more than 130 탆, not more than 100 탆, not more than 80 탆, not more than 50 탆, not more than 40 탆, not more than 30 탆 Emulsified particles having a diameter of not more than 25 mu m, not more than 20 mu m, not more than 15 mu m, not more than 10 mu m, or not more than 5 mu m can be formed.

The hydrophobic portion and the hydrophilic portion of the amphipathic anisotropic powder have different orientations toward the interface, whereby the macro emulsion particles can be formed. The above-described macro emulsified particles can provide an emulsified formulation having a low viscosity having a soft feel.

The hydrophobic portion and the hydrophilic portion of the amphipathic anisotropic powder have different orientations toward the interface, thereby forming a large emulsion particle, and it is possible to realize a formulation with excellent feeling of use. It has been difficult to form stable emulsified particles having a particle diameter of several tens of micrometers as the conventional molecular level surfactant and the interface film thickness of the surfactant is about several nanometers. On the other hand, in the case of the amphiphilic anisotropic powder disclosed in the present specification, Is increased to about several hundreds of nm and the stabilized interfacial film is formed due to strong bonding between the particles, the emulsification stability can be greatly improved.

In one embodiment, the composition comprises the amphiphilic anisotropic powder in an amount of, for example, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 0.6% At least 0.7% by weight, at least 0.8% by weight, at least 0.9% by weight, at least 1.0% by weight, at least 1.5% by weight, or at least 2.0% by weight and at most 20% by weight, at most 19% by weight, % Or less, 16 wt% or less, 15 wt% or less, 14 wt% or less, 13 wt% or less, 12 wt% or less, 11 wt% or less, 10 wt% or less, 9 wt% or less, 8 wt% %, Up to 6 wt%, up to 5 wt%, up to 4 wt%, or up to 3 wt%. For example, the amphiphilic anisotropic powder may comprise from 0.1 wt% to 10 wt%, for example, from 2 wt% to 6 wt%, based on the total weight of the composition. Stable emulsion particles can be formed within the above range, and emulsion particles having an appropriate size can be formed.

In one embodiment, the composition is prepared by mixing the silicone oil and the amphiphilic anisotropic powder in a weight ratio of silicone oil: amphiphilic anisotropic powder of 1: 9: 9-1, such as 1: 9: 1, such as 3: . It is possible to form an emulsion particle of an appropriate size within the above range, and a stable emulsion state can be maintained.

In another embodiment of the present invention, the silicone emulsion composition for water may further comprise a powder for adsorbing sebum to the emulsion composition for silicone in water according to one embodiment of the present invention.

In the present embodiment, the sebum adsorbing powder can adsorb the sebum secreted from the skin and give a feeling of matte feeling. Since the sebum adsorbent powder affects the incremental agent added to the conventional silicone emulsion composition for the emulsion stability, it is necessary to maintain the increase as additional additive in order to use such a powder in a silicone type emulsion composition in water Or to perform specific processing. The silicone-type emulsion composition according to the present embodiment can maintain the emulsion stability without increasing use of the amphipathic anisotropic powder, so that even when such an oil-adsorbing powder is included, the emulsion formulation is not adversely affected.

As the sebum adsorbing powder, polymethyl methacrylate (PMMA), silica and the like can be used, and for example, at least one selected from polymethyl methacrylate and silica can be used.

The sebum adsorbing powder may have an average particle size of 0.5 to 6 占 퐉, for example, 1 占 퐉 to 5 占 퐉, for example, 1.5 占 퐉 to 4 占 퐉. The formulation stability and the matte finish can be maintained while maintaining a light feeling within the above range.

The sebum adsorbing powder may be contained in an amount of 0.1 wt% to 5 wt%, for example, 0.5 wt% to 3 wt% based on the total weight of the composition. It is possible to exhibit a matte finish and sebum adsorption effect while maintaining the formulation stability within the above range.

The silicone-type emulsion composition according to the present invention may have a viscosity of 400 cps or more, 500 cps or more, 600 cps or more, 700 cps or more, 800 cps or more, 900 cps or more, 1000 cps or more, At least 1200 cps, at least 1300 cps, at least 1400 cps, at least 1500 cps, at least 1600 cps, at least 1700 cps, at least 1800 cps, at least 1900 cps, at least 2000 cps, at least 2100 cps, at least 2200 cps, at least 2300 cps, Or more of 2400 cps or more and 2500 cps or more and 4000 cps or less, 3900 cps or less, 3800 cps or less, 3700 cps or less, 3600 cps or less, 3500 cps or less, 3400 cps or less, 3300 cps or less, 3200 cps or less, cps or less, 2900 cps or less, 2800 cps or less, or 2700 cps or less, for example, 500 cps to 3000 cps, and 1000 cps to 3000 cps. Although the sebum adsorbing powder interferes with the increase of the formulations and exhibits a very low low viscosity, it can maintain a stable emulsified state and provide a feeling of use that exhibits unique flexibility and freshness.

The method for producing a cosmetic composition according to an embodiment of the present invention may include preparing the amphiphilic anisotropic powder and emulsifying the oil phase and the water phase using the amphoteric anisotropic powder produced.

In one embodiment of the present invention, the amphiphilic anisotropic powder is prepared by (1) stirring a first monomer and a polymerization initiator to prepare a first polymer spoloid; And (2) stirring the prepared first polymer spoloid with a second monomer and a polymerization initiator to prepare an anisotropic powder having a second polymer spoloid formed thereon.

In one example, the method may further include (3) introducing a hydrophilic functional group into the anisotropic powder prepared above after the anisotropic powder of (2) is produced.

In the above steps (1), (2) and (3), stirring may be rotary stirring. It is preferable to rotate and stir because chemical mechanical modification and homogeneous mechanical mixing are required for producing uniform particles. The rotational stirring may be performed in a cylindrical rotating reactor, but the rotational stirring method is not limited thereto.

At this time, the design inside the reactor has a great influence on powder formation. The size and location of the baffles in the cylindrical rotating reactor and the degree of spacing between the impeller and the baffles greatly influence the uniformity of the particles produced. It is desirable to minimize the interval between the blades of the inner wing and the impeller to equalize the convection flow and the strength thereof, and to feed the powder reaction liquid below the wing length and to maintain the impeller rotation speed at a high speed. 200 rpm, and the length to diameter ratio of the reactor may be 1 to 3: 1 to 5, more specifically 10 to 30 cm in diameter and 10 to 50 cm in height. The reactor size can be varied in proportion to the reaction capacity. The material of the cylindrical rotating reactor may be ceramics, glass, etc., and the temperature at the time of stirring is preferably 50 to 90 ° C.

In the cylindrical rotating reactor, the simple rotation method is capable of producing uniform particles, and is a low energy method requiring less energy and maximizing the reaction efficiency, enabling mass production. The conventional tumbling method in which the reactor itself rotates requires high energy and restricts the size of the reactor since the entire reactor must be tilted at a constant angle and rotated at high speed. The amount produced due to reactor size limitations was also limited to small quantities of the order of several hundreds of milligrams to several grams, making them unsuitable for mass production.

According to one exemplary embodiment, the first monomer and the second monomer may be the same or different, and specifically may be (meth) acrylate-based monomers. The polymerization initiator used in each step may be the same or different, and the cross-linking agent used in each step may be the same or different.

According to one exemplary embodiment, the (meth) acrylate-based monomer may include an unsubstituted (meth) acrylate ester having a linear or branched alkyl group having 1 to 20 carbon atoms. (Meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, (Meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, ethylhexyl (meth) acrylate, octyl Acrylate, decyl (meth) acrylate, lauryl (meth) acrylate, and the like, for example, methyl methacrylate.

In one example, the polymerization initiator may be a radical polymerization initiator, specifically, a peroxide type, an azo type, or a mixture thereof. Ammonium persulfate, sodium persulfate and potassium persulfate may also be used. For example, the polymerization initiator may be azobisisobutyronitrile, but is not limited thereto.

According to an exemplary embodiment, the first monomer and the polymerization initiator in (1) may be mixed in a weight ratio of 100 to 1000: 0.1 to 2. [ In another aspect, the first monomer and the polymerization initiator may be mixed in a weight ratio of 100 to 750: 1, or 100 to 500: 1, or 100 to 250: 1.

In another aspect, the first monomer, the polymerization initiator and the crosslinking agent may be added in the above (1). The first monomer, the polymerization initiator and the crosslinking agent may be mixed at a weight ratio of 80: 150: 0.5 to 2: 0.5 to 2, for example, 100: 1: 1.

According to one exemplary embodiment, the cross-linking agent may be a cross-linking agent and may be one or more of, for example, allyl methacrylate and ethylene glycol dimethacrylate, specifically allyl methacrylate Lt; / RTI >

The size and shape of the amphiphilic anisotropic powder are influenced by the adjustment of the first polymer spoil size of the initial (1), and the first polymer spoil size can be adjusted according to the weight ratio of the first monomer, the polymerization initiator and the crosslinking agent. In addition, by mixing at the weight ratio within the above range, there is an effect that the uniformity of the anisotropic powder can be increased.

In another aspect, the first monomer, the polymerization initiator, and the stabilizer may be added in a weight ratio of 100 to 1000: 1: 0.001 to 20 by further adding a stabilizer in the above (1).

According to one exemplary embodiment, the stabilizer may be an ionic vinyl polymer, and may specifically be at least one of polyvinylpyrollidone and polyvinyl alcohol, for example, polyvinylpyrrolidone It can be a lollydon. The ionic polymer increases the viscosity of the trauma by the expansion of the macromolecular chain and reduces the fluidity of the powder. This makes it possible to prevent the particles produced by the polymer polymerization from becoming entangled and united (bonded) to each other and to maintain a uniform size.

When the amphiphilic anisotropic powder has a size of 300 to 400 nm, the weight ratio of the first monomer, the polymerization initiator and the crosslinking agent is 110 to 130: 1: 1 to 5, specifically 115 to 125: 1: 2 to 4 Can be prepared from the first polymer spolide.

When the amphiphilic anisotropic powder has a size of 1100 to 2500 nm, the weight ratio of the first monomer, the polymerization initiator and the crosslinking agent is 100 to 150: 0.5 to 2: 0 to 2, specifically, 115 to 125: 1: 0 Can be prepared from the first polymer spolide.

The asymmetric snowman-like amphiphilic anisotropic powder is preferably an amphoteric anisotropic powder whose weight ratio of the first monomer, the polymerization initiator and the crosslinking agent is 100 to 200: 0.1 to 1: 5 to 15, specifically 110 to 130: 1: 9 to 11 1 < / RTI > polymer spolide.

The amphiphilic anisotropic powder having an asymmetric reverse snowman shape is preferably an amorphous amorphous powder having a weight ratio of the first monomer, the polymerization initiator and the crosslinking agent of 100 to 200: 1: 1 to 10, specifically 110 to 130: 1: 2 to 4 Can be prepared from polymeric sphereoids.

According to an exemplary embodiment, the second monomer and the polymerization initiator in (2) may be mixed in a weight ratio of 100 to 300: 1. In another aspect, the second monomer and the polymerization initiator may be present in an amount of from 160 to 250: 1, or from 170 to 250: 1, or from 180 to 250: 1, or from 190 to 250: 1, or from 200 to 250: : 1, or 220 to 250: 1, or 230 to 250: 1, or 240 to 250: 1.

In another aspect, the second monomer, the polymerization initiator and the cross-linking agent may be mixed in a weight ratio of 100 to 300: 1: 0.001 to 10 by further adding a cross-linking agent in the step (2). By mixing at a weight ratio within the above range, uniformity of the anisotropic powder can be enhanced.

According to one exemplary embodiment, the cross-linking agent may be a cross-linking agent, for example, one or more of allyl methacrylate and ethylene glycol dimethacrylate, specifically, ethylene glycol di Methacrylate.

In another aspect, the stabilizer may further be added in the step (2) to mix the first monomer, the polymerization initiator and the stabilizer in a weight ratio of 100 to 1000: 1: 0.001 to 20.

According to one exemplary embodiment, the stabilizer may be an ionic vinyl polymer, and specifically may be at least one of polyvinylpyrollidone and polyvinyl alcohol, for example, polyvinyl alcohol Lt; / RTI >

According to one exemplary embodiment, the second monomer content in step (2) may be 40 to 300 parts by weight when the first polymer spoil weight is 100 parts by weight. Specifically, if the second monomer content is in the range of 20 to 100 parts by weight based on 100 parts by weight of the first polymer spoil, the asymmetric snowman type powder is obtained, and when 100 to 150 parts by weight or 110 to 150 parts by weight, , 150 to 300 parts by weight, or 160 to 300 parts by weight, an asymmetric reverse snowman type powder is obtained. In addition, by mixing at the weight ratio within the above range, there is an effect that the uniformity of the anisotropic powder can be increased.

According to one exemplary embodiment, the hydrophilic functional group in (3) above may be introduced using a silane coupling agent and a reaction modifier, though not limited thereto.

According to one exemplary embodiment, the silane coupling agent is selected from the group consisting of (3-aminopropyl) trimethoxysilane, N- [3- (trimethoxysilyl) propyl] ethylenediamine, N- [3- ) Propyl] ethylenediammonium chloride, (N-succinyl-3-aminopropyl) trimethoxysilane, 1- [3- (trimethoxysilyl) propyl] urea and 3 - [(trimethoxysilyl) ] -1,2-propanediol, and specifically may be at least one selected from the group consisting of N- [3- (trimethoxysilyl) propyl] ethylenediamine.

According to one exemplary embodiment, the silane coupling agent may be mixed in an amount of 35 parts by weight to 65 parts by weight, for example, 40 parts by weight to 60 parts by weight, based on 100 parts by weight of the anisotropic powder produced in the step (2) . Within this range, hydrophilization can be appropriately performed.

According to one exemplary embodiment, the reaction modifier may be ammonium hydroxide.

According to an exemplary embodiment, the reaction control agent may be mixed with 85 to 115 parts by weight, for example, 90 to 110 parts by weight, based on 100 parts by weight of the anisotropic powder prepared in (2). Within this range, hydrophilization can be appropriately performed.

In another embodiment of the present invention, in the production of the amphiphilic anisotropic powder according to one embodiment of the present invention, the step (2) is followed by (4) a step of introducing a sugar-containing functional group into the produced anisotropic powder .

In the step (4), the functional group containing sugar is not limited thereto, but may be introduced using a sugar-containing silane coupling agent and a reaction control agent.

According to one exemplary embodiment, the sugar-containing silane coupling agent is selected from the group consisting of N- {N- (3-triethoxysilylpropyl) aminoethyl} gluconamide, N- (3-triethoxysilylpropyl) And N- {N- (3-triethoxysilylpropyl) aminoethyl} -oligo-hyaluronamide.

According to one exemplary embodiment, the reaction modifier may be ammonium hydroxide.

For example, the reaction modifier may be added in an amount of 85 to 115 parts by weight, for example, 90 to 110 parts by weight based on 100 parts by weight of the anisotropic powder prepared in the step (2). The introduction of a sugar-containing functional group within the above range can be suitably performed.

The preparation of the amphiphilic anisotropic powder according to the above method does not use a cross-linking agent, so there is no production entanglement. Thus, the yield is high and uniform, and mass production is easier than the tumbling method using a simple agitation method. In particular, there is an advantage that a nano size of 300 nm or less can be mass-produced in a unit of tens g to several tens of kg.

Compositions in accordance with embodiments of the present invention may further comprise a thickener to exhibit an appropriate viscosity. The thickeners may be those customary in the cosmetics field.

The composition according to the embodiments of the present invention is a silicone-type emulsion in water and can provide a feeling of fresh feeling without being tacky.

The composition according to the embodiments of the present invention is excellent in emulsion stability in an emulsified form without using a surfactant and can give a feeling of soft feeling as an emulsified composition and a silky and matte finish due to silicone oil at the same time. In particular, even in the presence of the powder for adsorbing sebum, there is no influence on the stability and the above-mentioned effect can be exhibited.

The compositions according to embodiments of the present invention can exhibit emulsion stability over time over a wide temperature range.

The composition according to the embodiments of the present invention may include a large emulsion particle to provide a soft and soft feel.

The composition according to the embodiments of the present invention can stabilize the silicone emulsion in water at a low point, thereby providing a non-tacky, light feeling, silky and matte finish in a flowable formulation.

The cosmetic composition according to embodiments of the present invention may be formulated containing a cosmetically or dermatologically acceptable medium or base. It may be in the form of a suspension, a microemulsion, a microcapsule, a microgranule or an ionic (liposome) and a non-ionic follicular dispersion, or a cream, a skin, a lotion, a powder, an ointment, a spray, May be provided in the form of a stick. It can also be used in the form of a foam or in the form of an aerosol composition further containing a compressed propellant. These compositions may be prepared according to conventional methods in the art.

In addition, the cosmetic composition according to embodiments of the present invention may be in the form of powders, fatty substances, organic solvents, solubilizers, thickeners, gelling agents, softeners, antioxidants, suspending agents, stabilizers, foaming agents, , Water, ionic or nonionic emulsifiers, fillers, sequestering agents, chelating agents, preservatives, vitamins, barrier agents, wetting agents, essential oils, dyes, pigments, hydrophilic or lipophilic active agents, lipid vesicles or cosmetics And any other ingredients used, such as cosmetics or adjuvants commonly used in the field of dermatology. Such adjuvants are introduced in amounts commonly used in the cosmetics or dermatological fields. The cosmetic composition according to the embodiments of the present invention may further contain a skin absorption promoting substance to increase the skin improving effect.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and that the scope of the present invention is not construed as being limited by these embodiments.

[ Manufacturing example  1-3] Amphipathic  Anisotropy Powdery  Produce

Manufacturing example  One. Polymethyl methacrylate (PMMA) first polymer Speroid  Produce

(PVP, Mw 360,000) as a stabilizer were mixed to prepare a dispersion solution. 10 g of methyl methacrylate, 0.1 g of azobisisobutyronitrile (AIBN) 0.1 as a polymerization initiator, g alc 0.1 g of allyl methacrylate as a crosslinking agent were mixed to prepare a monomer solution. The monomer solution was added to the dispersion solution, purged with nitrogen for 30 minutes, and reacted at 62 DEG C for 12 hours. The reaction was stirred in a cylindrical rotating reactor. The cylindrical rotating reactor was 11 cm in diameter, 17 cm in height, made of glass, and rotated at a speed of 500 rpm.

Methanol was added to the first polymer spoloid obtained, washed three times with a centrifuge at 12,000 rpm for 60 minutes, dried at room temperature under a reduced pressure pump, and pulverized with a mortar to obtain a powder. 4 shows an electron micrograph of the first polymer spoloid prepared in FIG.

Manufacturing example  2. Amphipathic  Anisotropy Powder  Produce

37 g of water and 1.38 g of polyvinyl alcohol as a stabilizer are mixed to prepare a dispersion solution. 0.5 g of the first polymer spolide prepared in Preparation Example 1 and the dispersion solution were mixed and mixed at room temperature and 500 rpm for one hour. 5.0 g of methyl methacrylate, 0.5 g of ethylene glycol dimethacrylate as a crosslinking agent, And 0.05 g of azobisisobutyronitrile as a polymerization initiator were added, and the mixture was allowed to react at normal temperature and 500 rpm for 24 hours. As an inhibitor, 0.025 g of hydroquinone was added and reacted at 75 DEG C and 500 rpm for 24 hours. The reaction was carried out in a cylindrical rotating reactor, followed by methanol washing three times for 60 minutes at 12,000 rpm in a centrifuge, drying at room temperature by a reduced pressure pump, and pulverizing into a pellet. An amphiphilic anisotropic powder of about 350 nm in size was prepared, and a micrograph thereof is shown in Fig. 5 (a).

Manufacturing example  3. Hydrophilization Treated Amphipathic  Anisotropy Powdery  Produce

30 g of N- [3- (trimethoxysilyl) propyl] ethylenediamine (N- [3- (Trimethoxysilyl) propyl] ethylenediamine) as a silane coupling agent was added to 600 g of the aqueous dispersion solution of the amphoteric anisotropic powder obtained in Preparation Example 2 And 60 g of ammonium hydroxide (Ammonium hydroxide) as a reaction modifier were mixed and reacted at 25 DEG C for 24 hours to introduce a hydrophilic functional group. The reaction was stirred in a cylindrical rotating reactor. The compounds used as the silane coupling agent are shown in Table 1.

Claims (18)

An amphoteric anisotropic powder and a silicone oil,
The amphiphilic anisotropic powder may be an amorphous powder,
A first polymeric spheroid that is hydrophilic and a second polymeric spheroid that is hydrophobic,
Wherein the first polymeric spheroids and the second polymeric spheroids are at least partially bound to a structure that penetrates the counterpart polymeric spheroids,
Wherein the first polymeric sphere and the second polymeric sphere comprise a (meth) acrylate-based polymer. The method according to claim 1,
Wherein the silicone oil comprises from 5% to 40% by weight based on the total weight of the composition. The method according to claim 1,
Wherein the silicone oil is selected from the group consisting of dimethicone, cyclomethicone, alkyltrimethicone, and methylphenylsiloxane. The method according to claim 1,
Wherein the composition has a viscosity of from 1000 cps to 10000 cps. The method according to claim 1,
Wherein the composition further comprises a powder for adsorbing sebum. 6. The method of claim 5,
Wherein the sebum adsorbing powder is at least one selected from the group consisting of polymethyl methacrylate and silica. 6. The method of claim 5,
Wherein the sebum adsorbing powder has an average particle size of 1 탆 to 5 탆. 6. The method of claim 5,
Wherein the sebum adsorbing powder is contained in an amount of 0.1 wt% to 5 wt% based on the total weight of the composition. 6. The method of claim 5,
Wherein the composition has a viscosity of from 1000 cps to 3000 cps. The method according to claim 1,
Wherein the polymer comprises a polymer of a monomer having an alkyl group. 11. The method of claim 10,
Wherein the monomer having an alkyl group comprises a (meth) acrylic acid ester having an unsubstituted linear or branched alkyl group having 1 to 20 carbon atoms. The method according to claim 1,
Wherein the first polymeric spheroids are additionally introduced with hydrophilic functional groups. 13. The method of claim 12,
Wherein the hydrophilic functional group is at least one selected from the group consisting of a carboxylic acid group, a sulfonic group, a phosphate group, an amino group, an alkoxy group, an ester group, an acetate group, a polyethylene glycol group and a hydroxyl group. The method according to claim 1,
Wherein the first polymeric spheroid is further introduced with a functional group containing a sugar. 15. The method of claim 14,
The functional groups containing the sugar include N- {N- (3-triethoxysilylpropyl) aminoethyl} gluconamide, N- (3-triethoxysilylpropyl) -Triethoxysilylpropyl) aminoethyl} -oligo-hyaluronamide. ≪ / RTI > The method according to claim 1,
Wherein the amphipathic anisotropic powder has a symmetrical shape, an asymmetric snowman shape or an asymmetric inverted snowman shape with respect to the joint where the first polymeric spheroid and the second polymeric spheroid are bonded. The method according to claim 1,
Wherein the amphiphilic anisotropic powder has a particle size of 100 to 2500 nm. The method according to claim 1,
Wherein the amphiphilic anisotropic powder forms macroparticulate particles having an average particle size of 2 to 200 탆.