KR20110137157A - Pmma complex pigment containing organic uv agents and manufacturing method thereof and cosmetic compositon for uv screening containing the same - Google Patents

Abstract

PURPOSE: An organic UV agent-supported functional PMMA complex pigment is provided to minimize direct contact of agent with skin and prevent skin trouble and allergy. CONSTITUTION: A functional PMMA complex pigment contains 60-99.8 wt% of porous sphere and 0.20-40.0 wt% of organic UV agent. A cosmetic composition for UV protection contains 3-40 wt% of the functional PMMA complex pigment, 6-15 wt% of oil ingredient, 40-86 wt% of pigment, and 0.5-5.0 wt% of additives. The oil ingredient is hexyl laurate, cyclomethicone, scualene or dimethicone, or ester oil or silicon oil. The pigment includes ferric oxide, alumina, talc, silica, titanium dioxide, or polyethylene powder. The cosmetic composition is manufactured in the form of a powder pact, face powder, eye shadow, blusher, pencil, lip stick, mascara, or nail enamel.

Description

Functional PMA composite complex with organic UV blocker, its manufacturing method and cosmetic composition for UV blocking containing same {PMMA Complex Pigment Containing Organic UV Agents And Manufacturing Method Thereof And Cosmetic Compositon For UV screening Containing The Same}

The present invention relates to a functional polymethyl methacrylate (PMMA) supported organic UV blocker. A composite pigment, a method for preparing the same, and a cosmetic composition for protecting a UV ray containing the same. The present invention relates to a functional PMMA composite pigment carrying organic UV blocker in pores of spherical PMMA, a method for preparing the same, and a cosmetic composition for sunscreen containing the same.

In general, ultraviolet rays are classified into UV-C, wavelengths of 100 to 280 nm, UV-B for wavelengths of 280 to 320 nm, and UV-A for wavelengths of 320 to 400 nm. UV-C passes through the ozone layer and disappears without reaching the surface. UV-B penetrates the skin's epidermis, causing erythema, freckles, and edema. UV-A is known to induce skin aging and skin irritation by penetrating the dermis of the skin to promote skin cancer, wrinkles and melanin formation.

This exposure to ultraviolet light from the sun is a major cause of erythema, swelling, freckles, skin cancer, and aging of the skin. In recent years, it has reduced or delayed various skin diseases and skin aging caused by ultraviolet light. The research on the cosmetics to make it is active.

UV rays are known as two types of inorganic sunscreens and organic sunscreens. Inorganic sunscreens are substances that absorb, scatter, and reflect UV rays. It may cause unpleasant discomfort due to a feeling of use, and there is a problem that consumers are reluctant to use the product due to a white or blue appearance of the skin. The organic sunscreen is a substance that absorbs ultraviolet rays by trapping sunlight energy in a molecule and exhibits a blocking effect. The organic sunscreen is less cloudy and excellent in application of cosmetics, but may cause irritant contact dermatitis upon sensitive skin contact.

In general, formulations of sunscreen cosmetics are oil-dispersible, ie oil-in-water (O / W) products with a continuous aqueous phase. Therefore, these products are weak to sweat or water, and since the sunscreen cosmetics are mainly used in an environment that is easy to be exposed to sweat or water, such as swimming, hiking, skiing or sea bathing, it is possible to block UV rays with conventional products. The effect may not be sufficiently exerted, and sticking may occur when applied several times in such an environment, resulting in discomfort. Moreover, the conventional formulations have a disadvantage in that the UV blocking effect is shortened to less than 50% after 30 minutes or more after being applied shortly.

In order to solve such a problem, a technique related to a cosmetic composition for blocking ultraviolet rays (Korean Patent Publication No. 2008-0051830) containing a medium-porous inorganic composite powder carrying an organic metal oxide in a pore and an organic sunscreen is disclosed. . However, the cosmetic composition for sunscreen containing the medium porous inorganic composite powder carrying the metal oxide in the pores and the organic sunscreen is cerium, in the pores of the medium porous silica molecular sieve substituted with metal elements such as titanium or zinc. It is supported on metal oxides such as iron, and appears yellow or red, so that the skin becomes darker, the skin blemish cover effect is decreased, skin tone correction effect is reduced, and the organic sunscreen agent is simply mixed with the inorganic composite powder, It remains a problem that causes skin trouble and skin allergy, and the sebum control effect is inferior.

KR, 10-2008-0051830

The present invention was derived to solve the above problems, by producing a functional PMMA composite pigment supporting an organic UV blocker in the pores of the porous spherical PMMA by minimizing direct contact with the skin of the organic sunscreen and skin problems and skin The present invention provides a cosmetic composition having excellent UV blocking ability without causing allergy.

In addition, the present invention is porous and porous (hereinafter referred to as porosity) as a carrier of the organic sunscreen, skin ductility, light feeling, excellent sebum control function, skin tone correction effect function by light scattering, skin defects The purpose of the present invention is to provide a functional PMMA composite pigment and a sunscreen cosmetic composition having a supplementary pigment function, which brings about a cover effect and a soft focus effect, and makes it easier for other pigments to adhere to the skin and makes the makeup film thin and clean. have.

In order to solve the above object, the present invention provides a functional PMMA composite pigment in which an organic UV blocker is supported on a porous spherical PMMA.

In the present invention, "functional PMMA composite pigment" means a composition in which an organic UV blocker is supported on a porous spherical PMMA.

In addition, the present invention provides a cosmetic composition for blocking UV rays comprising the functional PMMA composite pigment, oil component, extender pigment, and additives.

In the cosmetic composition for sunscreen, each composition ratio is 3.0 to 40% by weight of a functional PMMA composite pigment; 6.0-15.0 weight percent of an oil component; Sieving pigment 40.0-86.0 wt%; And an additive of 0.5 to 5% by weight.

On the other hand, the present invention S1) 60 ~ 99.8% by weight of the porous spherical PMMA and 0.2 to 40% by weight of the organic UV blocker is mixed with a high-speed mixer at 15 ~ 40 ℃ to form a composite pigment phase supporting the organic UV blocker Phase forming step; S2) after the composite pigment phase forming step, the ripening step of aging the composite pigment phase loaded with the organic UV blocker at 15 ~ 40 ℃ for 0.5 to 24 hours; And S3) a composite pigment forming step of forming a UV-blocking composite pigment by filtration through 20 to 60 mesh after the aging step. Provides a method for producing a functional PMMA composite pigment containing an organic UV blocker.

In addition, the present invention, S1) functional PMMA composite pigments, additives, and general sieving pigments loaded with an organic UV blocker is treated by a high-speed mixer 1 to 3 times to disperse and disperse the functional PMMA composite pigments and other sieving pigments Forming a primary powder phase;

S2) dispersing as an oil component on the primary powder and stirring by mixing with a high speed mixer at 25 ~ 95 ℃ to form a secondary powder phase; And

S3) aging the secondary powder phase for 24 hours, to prepare a cosmetic composition for sun protection at 25 ~ 35 ℃; provides a method for producing a cosmetic composition for sun protection.

The functional PMMA composite pigment containing the organic UV blocker of the present invention and the ultraviolet ray cosmetic composition containing the same carry an organic sunscreen in the pores of the porous spherical PMMA, thereby minimizing direct contact with the skin of the organic sunscreen and causing skin troubles. It does not cause skin allergy and has excellent UV blocking ability.

In addition, the porous type PMMA is skin-friendly as an organic polymer and has the adhesion and amorphous structure of PMMA, resulting in transparency, skin malleability, light usability, and excellent sebum control. In addition, since the porous functional PMMA loaded with the organic sunscreen has a spherical characteristic, it has a skin tone correction effect function due to light scattering and a skin defect cover effect.

In addition, it has a diffuse reflection effect on light, so that the soft focus effect that smoothes the texture of the pores and wrinkles, and the auxiliary pigment that makes other pigments adhere to the skin easily and makes the makeup film thin and clean Has the effect of function.

On the other hand, it has a skin-friendly property by the organic UV blocker remaining on the surface of the porous spherical powder by several nm, the effect that the powder is minimized when applied to the powder is remarkable.

FIG. 1A is a scanning electron microscope (SEM) observation photograph of a conventional PMMA (Poly (methyl methacrylate)) prepared, and FIG. 1B is a scanning electron micrograph of a functional PMMA composite pigment prepared according to the present invention. to be.
Figure 2 is a graph showing the results of the In-vitro test for the UV blocking ability of the functional PMMA composite pigments loaded with an organic ultraviolet blocker prepared by the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments and the drawings so that a person having an average knowledge can easily repeat the same.

The present invention provides a functional PMMA composite pigment in which an organic UV blocker is supported on a porous spherical PMMA. Here, the "functional PMMA composite pigment" is as described above to mean a composition in which the organic UV blocker is supported on the porous spherical PMMA.

At this time, the functional PMMA composite pigment is porous spherical PMMA 60 to 99.8% by weight; It is preferred to have a composition ratio of 0.20 to 40.0% by weight of the organic ultraviolet blocker.

If the content of the organic sunscreen is less than 0.2% by weight in the above range, the sunscreen effect is insignificant, and when it exceeds 99.8% by weight, there is a numerical limitation in that the feeling of use decreases due to the decrease in formulation stability. For example, in the case of compressed powder, when the content is more than the above range, the powder may be blown off when the makeup because the compressive strength between the powder in the powder dish is lowered.

The porous spherical PMMA is a hollow organic synthetic polymer having an amorphous structure, and has a high transparency, so it is blended in a cosmetic formulation to produce natural makeup, and to cover skin defects with low refractive index and diffuse reflection, and hollow hollowness. It has a very good oil absorption of 230 ~ 270ml / mg as a powder, it is excellent in sebum control effect.

In addition, the porous spherical PMMA has excellent thermal and chemical properties, high specific surface area, low density, and low toxicity, so that the porous spherical PMMA is not only compatible with other pigments, but also in yeast and protein reservoirs, artificial skin, and drugs in color analysis. It is used as a carrier in the release system as well as in cosmetics to perform a variety of functions including skin tone correction through malleability, sebum control and transparency.

In addition, the organic ultraviolet blocker is hexyl hexyl methoxycinnamate, ethyl hexyl silicate, octyl dimethyl para-aminobenzoic acid, butyl methoxy dibenzoyl methane, octyl methoxy cinnamate, octyl salicylate, octocrylene, butyl methoxy Sidibenzoylmethane, oxybenzone, octyltriazone, menthylanthranilate, 3,4-methylbenzylidene kempfer, or bis-ethylhexyloxyphenol methoxyphenyltriazine, or a mixture of two or more thereof. It is more preferable to use either one of the hexyl hexyl methoxy cinnamates or the ethyl hexyl silicate or a mixture of the two.

Here, the organic sunscreen causes trouble on sensitive skin, and when ultraviolet rays are irradiated for a predetermined time, the molecular chain bond is broken and the UV blocking function is lowered. The sunscreen is supported on the porous spherical PMMA to prevent skin troubles, enhance the sunscreen function and prevent microbial rancidity due to encapsulation using the carrier.

At this time, in the case of ethylhexyl methoxycinnamate, ethhexyl silicate, as well as the function of blocking the ultraviolet rays of UV-B, the inorganic sunscreen titanium dioxide and zinc oxide to help increase the ultraviolet ray blocking effect is further increased. However, since the ethylhexyl methoxycinnamate and the ethylhexyl silicate show a phenomenon such as skin troubles and skin allergies when the skin is in direct contact with the skin, there is a limitation in the use of the compound in which the content is limited. By supporting the porous spherical PMMA with many pores developed, it overcomes the limitations of use such as skin trouble and skin allergy.

In the production of the functional PMMA composite pigment,

S1) a composite pigment phase forming step of mixing the porous spherical PMMA 60 ~ 99.8% by weight and the organic UV blocker 0.2 ~ 40% by weight with a high-speed mixer at 15 ~ 40 ℃ to form a composite pigment phase loaded with the organic UV blocker; S2) after the composite pigment phase forming step, the ripening step of aging the composite pigment phase loaded with the organic UV blocker at 15 ~ 40 ℃ for 0.5 to 24 hours; And S3) after the aging step, a composite pigment forming step of forming a UV-blocking composite pigment by filtration with 20 ~ 60 mesh; can be prepared porous spherical functional PMMA composite pigments loaded with an organic UV blocker.

In addition, the present invention provides a cosmetic composition for blocking UV rays comprising the functional PMMA composite pigment, oil component, extender pigment, and additives.

In the cosmetic composition for sunscreen, each composition ratio is 3.0 to 40% by weight of a functional PMMA composite pigment; 6.0-15.0 weight percent of an oil component; Sieving pigment 40.0-86.0 wt%; And an additive of 0.5 to 5% by weight.

On the other hand, if the composition ratio of the functional PMMA composite pigment is less than 3% by weight may have difficulty in the effect of UV protection, when it exceeds 40% by weight there is a numerical limitation because there is a problem in the formulation stability as a cosmetic composition.

The oil component may be any one of hexylulalate, cyclomethicone, squalane, dimethicone, ester oil and silicone oil or a mixture of two or more thereof. When the content of the oil component is less than 6.0% by weight, the formulation stability is lowered, and when the content of the oil component is more than 15% by weight, the oil is too oily when applied, and the feeling of use is inferior.

The extender pigment component may be any one of iron oxide, alumina, talc, mica, silica, titanium dioxide, or polyethylene powder or a mixture of two or more thereof. Here, when the content of the extender pigment component is less than 40% by weight, the oily feel and oil absorption ability for sebum is lowered, and when the content of the pigment component exceeds 86% by weight, the feeling of use is lowered.

The additive may be any one of polysorbate, glyceryl stearate, sorbitan sesquioleate, sorbitan stearate, fiji-10 dimethicone or sorbitan oleate as an emulsifier, and caprylyl glycol as a natural preservative, or It may be a mixture of two or more of these. Here, when the content of the additive is less than 0.5% by weight, the emulsification effect and the antiseptic effect are lowered, the formulation stability is lowered, and when the content of the additive is more than 5.0% by weight, there is a numerical limitation in that it is inferior.

In addition, the sunscreen cosmetic composition may further comprise an organic solvent, the organic solvent may be any one of glycerin, propylene glycol or dipropylene glycol or a mixture of two or more thereof.

On the other hand, in preparing the cosmetic composition for blocking UV rays,

S1) a functional PMMA composite pigment, additives, and sieving pigments loaded with an organic UV blocker are treated in a high speed mixer one to three times to disperse the functional PMMA composite pigments and sieving pigments to form a dispersed primary powder phase. step; S2) dispersing as an oil component on the primary powder and stirring by mixing with a high speed mixer at 25 ~ 95 ℃ to form a secondary powder phase; And S3) aging the secondary powder phase for 24 hours, preparing a cosmetic composition for sun protection at 25 ~ 35 ℃; may comprise a cosmetic composition for sun protection.

On the other hand, the present invention can provide a sunscreen cosmetic composition containing the functional PMMA composite pigment or the functional PMMA composite pigment loaded with the organic sunscreen, the cosmetic composition for the sunscreen at this time the formulation is powder pact , Sunscreen cosmetics, face powder, eye shadow, blusher, liquid foundation, cream foundation, cake type foundation, stick type foundation, pencil, lipstick, mascara, nail enamel It is not limited to this.

Hereinafter, the present invention will be described in detail by way of examples.

However, the above examples are merely illustrative of the present invention, and the contents of the present invention are not limited by the following examples.

[ Example  One]

Organic sunscreen Supported  Porous Spherical Functionality PMMA  Preparation of Composite Pigments

800 g of porous spherical PMMA and 200 g of ethhexyl methoxycinnamate as organic UV blockers were mixed at 30 ° C. with a high speed mixer to form a composite pigment phase.

After the composite pigment phase was formed, the mixture was subjected to about 12 hours at 25 ° C., and then filtered through 40 mesh to prepare a functional PMMA composite pigment supported with an organic UV blocker.

For the functional PMMA composite pigment prepared above, a photograph taken through the scanning electron microscope is shown in FIG. 1B. For comparison, FIG. 1A shows a scanning electron microscope of a spherical PMMA (Poly (methyl methacrylate)). (Scanning Electron Microscope; SEM) observation photograph is shown.

In addition, the functional PMMA composite pigment prepared above was subjected to an in-vitro test for UV blocking ability, which is shown in FIG. 2.

The experimental method is as follows.

1) Samples of homogenized functional PMMA composite pigments in an amount of 10.0% to 100.0% relative to glycerin at 30 to 40 ° C. were prepared.

2) The in-vitro test was done with a sunscreen index analyzer (SPF290 analyzer).

3) The product application area and the irradiation area were divided into 24 cm 2 or more and 6 irradiation areas having an area of 0.5 cm 2 or more were divided.

4) The sample coating amount was analyzed after applying at 2.0 mg / cm 2 or 2.0 μl / cm 2.

As shown in FIG. 1, when the weight ratio of the compound pigment to the glycerin content was increased from 10.0% to 100.0%, the sun protection factor (SPF) was observed from 3.0 to 30.0, thereby increasing the organic UV blocker. It was found that the porous spherical functional PMMA composite pigments supported had excellent UV protection.

 [ Example  2]

Organic sunscreen Supported  Functional PMMA  Using complex pigment Cosmetics  Preparation of the composition

The porous composite pigment carrying an organic sunscreen was carried out in a compressed powder as a cosmetic composition with the composition of each component according to Table 1 below.

division Ingredient (% by weight) Example
2 Example
3 Comparative example
One Comparative example
2 Comparative example
3 Comparative example
4 Powder Award Functional PMMA
Compound Pigment 3.0 40.0 2.0 45.0 50.0 60.0 Sieving pigment
(Talk = talcum) 71.0 32.0 72.0 27.0 20.0 8.0 Sieving pigment
(Mica) 15.0 15.0 15.0 15.0 15.0 15.0 additive 5.0 5.0 5.0 5.0 5.0 5.0 Binder phase Squalane
(Oil component) 2.0 3.0 2.0 3.0 4.0 5.0 Dimethicone
(Oil component) 4.0 5.0 4.0 5.0 6.0 7.0

The manufacturing method is as follows.

1) After the powder phase was weighed, the mixture was placed in a high speed mixer and subjected to high speed mixing for 3 minutes.

2) The raw material was added to the production method 1 in the binder phase and dispersed first for 2 minutes, and then the powder aggregate adhered to the bottom and the outer wall was scraped and subjected to secondary dispersion for 2 minutes.

3) The preparation method 2) was placed in a hemmer grinder and pulverized twice.

Experimental Example  One

The composite pigment prepared by the above method was used to make a compressed powder for each content to make 30 expert panel agents use for one month, and then carried out physical property evaluation, and the results are shown in Table 2 below. At this time, the higher the score on the basis of 5 out of the better quality. For reference, Example 1 was cremated on the left face and Comparative Example 1 was cremated on the right face.

division Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 A sense of closeness 3.5 4.4 3.0 4.4 4.0 3.5 Skin texture 3.4 4.1 3.2 4.2 4.0 4.2 Gloss 3.2 3.5 3.0 3.2 3.1 3.2 Coverage 3.0 4.1 2.8 4.2 4.3 4.4 Spreadability 3.2 4.3 3.1 4.3 4.4 4.6 Toilet paper 3.5 4.2 2.4 4.3 4.3 4.4

Criteria (very good: 5, excellent: 4, normal: 3, short: 2, very poor: 1)

As shown in Table 2, Examples 2 and 3 of the present invention were adjusted to the mixing ratio of the porous spherical functional PMMA composite pigment loaded with an organic ultraviolet blocker in a compression powder, the composite pigment is 3.0 to 14.0% by weight or less In this case, the skin adhesion is excellent, and the cosmetics have excellent properties such as the effect of alleviating the skin defects naturally by increasing the scattering effect of the pigment surface by the persistence, malleability and light. However, when the composite pigment is less than 0.1 to 2.0% by weight as in Comparative Example 1, the optical properties and the usability characteristics were not shown well. In Comparative Example 2, Comparative Example 3, and Comparative Example 4, as the content of the composite pigment is increased more than 15.0% by weight, the characteristics are excellent, but the powder stability and falling stability of the compression powder is significantly reduced, so that the formulation is unstable. Of course, it was observed that various characteristics were remarkably degraded because no uniform film was formed on the skin.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

Claims (11)

Functional PMMA composite pigment with organic sunscreen on porous spherical PMMA.
The method of claim 1,
The functional PMMA composite pigment is 60 to 99.8 wt% porous spherical PMMA;
The organic UV blocker is a functional PMMA composite pigment, characterized in that having a composition ratio of 0.20 to 40.0% by weight.
The method according to claim 1 or 2,
The organic ultraviolet blocker is ethhexyl methoxycinnamate, ethhexyl silicate, octyl dimethyl para-aminobenzoic acid, butyl methoxydibenzoyl methane, octyl methoxycinnamate, octyl salicylate, octocrylene, butylmethoxy dibenzoyl Functional, characterized in that one of methane, oxybenzone, octyltriazone, menthylanthranilate, 3,4-methylbenzylidene camphor or bis-ethylhexyloxyphenolmethoxyphenyltriazine or a mixture of two or more thereof PMMA composite pigment.

3 to 40% by weight of the functional PMMA composite pigment according to any one of claims 1 to 3; 6 to 15 weight percent oil component, 40 to 86 weight percent pigment; And 0.5 to 5.0% by weight of an additive; cosmetic composition for sun protection.
The method of claim 4, wherein
The oil component is hexyl laurate, cyclomethicone, squalane or dimethicone, ester oil and silicone oil, any one or a mixture of two or more of them, characterized in that the sunscreen cosmetic composition.
The method of claim 4, wherein
The pigment component is any one of iron oxide, alumina, talc, mica, silica, titanium dioxide, or polyethylene powder or a mixture of two or more thereof.
The method of claim 4, wherein
The additive may be any one of polysorbate, glyceryl stearate, sorbitan sesquioleate, sorbitan stearate, fiji-10 dimethicone or sorbitan oleate as an emulsifier, and caprylyl glycol as a natural preservative, or Cosmetic composition for sunscreen, characterized in that a mixture of two or more of these.
The method of claim 4, wherein
The sunscreen cosmetic composition is a powder pact, two-way cake, face powder, eye shadow, blusher, liquid foundation, cream foundation, cake type foundation, stick type foundation, pencil, lipstick, mascara, nail enamel Cosmetic composition for sunscreen, characterized in that.
S1) a composite pigment phase forming step of mixing the porous spherical PMMA 60 ~ 99.8% by weight and the organic UV blocker 0.2 ~ 40% by weight with a high-speed mixer at 15 ~ 40 ℃ to form a composite pigment phase loaded with the organic UV blocker;
S2) after the composite pigment phase forming step, the ripening step of aging the composite pigment phase loaded with the organic UV blocker at 15 ~ 40 ℃ for 0.5 to 24 hours; And
S3) after the aging step, a composite pigment forming step of forming a UV-blocking composite pigment by filtration by 20 ~ 60 mesh; a method of producing a porous spherical functional PMMA composite pigments containing an organic UV blocker.
S1) a functional PMMA composite pigment, additives, and sieving pigments loaded with an organic UV blocker are treated in a high speed mixer one to three times to disperse the functional PMMA composite pigments and sieving pigments to form a dispersed primary powder phase. step;
S2) dispersing as an oil component on the primary powder and stirring by mixing with a high speed mixer at 25 ~ 95 ℃ to form a secondary powder phase; And
S3) aging the secondary powder phase for 24 hours, preparing a cosmetic composition for sunscreen at 25 ~ 35 ℃; manufacturing method of a cosmetic composition for sunscreen.
The method of claim 10,
The oil component is any one or a mixture of two or more of hexylulalate, cyclomethicone, squalane or dimethicone, ester oil and silicone oil;
The pigment component is any one of iron oxide, alumina, talc, mica, silica, titanium dioxide, or polyethylene powder or a mixture of two or more thereof;
The additive is any one of polysorbate, glyceryl stearate, sorbitan sesquioleate, sorbitan stearate, fiji-10 dimethicone or sorbitan oleate as an emulsifier, and caprylyl glycol as a natural preservative, or A method for producing a cosmetic composition for sunscreen, characterized in that a mixture of two or more of these.

Images