KR20130109653A - Uv screening compositions and their uses - Google Patents

Abstract

The present invention is not absorbed by the human body, has a strong affinity with organics does not exhibit a clouding phenomenon, and relates to a sunscreen composition having improved UV stability and UV protection effect. According to the present invention, the composition of the present invention exhibits excellent UV protection and high SPF index even with a single effective component of poly (organic oxide) particles. Therefore, the composition of the present invention is very excellent in the application of the cosmetics for UV protection, and can be utilized in various fields as a UV protection agent with improved stability.

Description

UV screening compositions and Their Uses

The present invention relates to a sunscreen composition and its use.

Ultraviolet rays emitted from the sun are classified into UV-A (320-400 nm), UV-B (280-320 nm), and UV-C (220-280 nm) depending on the length of the wavelength. UV-C is not a concern because of its short wavelength and hardly reaches the earth's surface, and UV-B is the main cause of erythema (burn) and has the greatest impact on daily life. UV-A has not been a major concern because of its low energy, but recently it has been found to be a major cause of skin cancer, causing great concern.

There are 17 kinds of ingredients used as sunscreen active ingredients in the United States, and 29 kinds in Korea. These are classified into inorganic sunscreens and organic sunscreens. The sunscreen active ingredient can harm the human body by its own toxicity or by chemical reactions and by-products that occur when exposed to ultraviolet light. Its own toxicity is related to their penetration into the body through the skin. The sunscreen active ingredients that enter the human body are released into the urine and breast milk through metabolism and can affect human organs in the process. On the other hand, exposure to UVA, which penetrates deep into the dermis, during the process of permeation into the body, can cause a lot of radical reactions in the areas where they exist. Therefore, when the sunscreen is applied and the sun is exposed, the concentration of free radicals in the skin becomes ultraviolet. It has been found that it can be higher than without the blocker. On the other hand, in the case of micronitized titanium dioxide or zinc oxide, particles having a size of 10-50 nm may remain on the skin because they are not washed out well, and nanoparticles embedded in the skin may be left in view of their high photoreactivity. The detoxification by them is concerned. These widely used sunscreens can have a very dangerous effect on the human body, and many scholars have argued that sunscreens increase skin cancer.

Furthermore, micronized titanium dioxide and zinc oxide, which are considered to be the safest ones, have much improved transparency compared to titanium dioxide and zinc oxide, which have a small particle size and are 200-300 nm in size, but are still opaque when used at 5% or more. It causes a haze. There is also increasing concern about nanoparticles with sizes below 100 nm, and their use is likely to decline in the future. In general, it is recognized that molecules having a molecular weight of more than 500 cannot penetrate the skin, and recently, some sunscreen components made of molecules having a molecular weight of more than 500 have been used.

In order to further solve this problem, particles of titania or zinc oxide are physically added to polymer particles such as silica particles or poly (methyl methacrylate), and then added to cosmetics to suppress turbidity and to solve the problems of nanoparticles. Although it has been commercialized, the clouding phenomenon is inherent due to the high refractive index of titanium dioxide and zinc oxide, and thus is not greatly improved. In a more advanced manner, poly (organic silicon oxide) particles combined with paramethoxycinnamic acid or N, N-dimethylbenzoic acid were prepared. Since these particles show a very good synergy when mixed with other sunscreens, a patent has already been registered that uses them as sunscreen boosters (Korean Patent No. 10-0684367). These particles have been used as an adjuvant to achieve high SPF in combination with existing sunscreens.

In general, the sunscreen active ingredients show higher SPF as the concentration increases, but when the SPF does not increase any more than a certain concentration or increases only very little with respect to the increase in concentration, two or more sunscreen active ingredients are used. Most of this is. Most sunscreens contain at least two and as many as five different sunscreens. The content can range from 10-40% depending on the SPF and formulation.

The present invention further develops the use of silicone polymers containing UV-absorbing active groups, and has high SPF and excellent PA values using only one or more silicone polymer sunscreen ingredients without using other existing harmful blocking agents. Sunscreen compositions and methods of making the same have been developed.

Silicone polymer particles which absorb ultraviolet rays include p-methoxycinnamidopropylmethyldiethoxysilane, p-methoxycinnamidopropylmethyldimethoxysilane, o-acetoxybenzamidopropylmethyldiethoxysilane, o-acetoxybenz Amidopropylmethyldimethoxysilane, pn, n-dimethylamidopropylmethyldimethoxysilane, pn, n-dimethylamidopropylmethyldiethoxysilane, p-methoxycinnamidopropyltrimethoxysilane, p-methoxy Cinnamidopropyltriethoxysilane, o-acetoxybenzamidopropyltrimethoxysilane, o-acetoxybenzamidopropyltrimethoxysilane, pn, n-dimethylamidopropyltrimethoxysilane, pn, n -Dimethylamidopropyltriethoxysilane and the like can be prepared by a single polymerization or copolymerization or at least one of them and methyltrimethoxysilane, propyltrimethoxysilane, phenyltrimethoxysilane, octyltrimethoxy silane, silica, etc. Copolymerization To prepare.

It is difficult to obtain insoluble particles only by the dialkoxysilane forming the polysiloxane. That is, in the case of using a dialkoxysilane to form a polysiloxane, copolymerizing with a monomer capable of crosslinking, such as organotrialkoxysilane or tetraalkoxysilane, always yields insoluble particles. The resulting particles are spherical and usually show strong absorption between 280 and 320 nm. The average size of these particles can be adjusted between 10 nm and 1000 nm.

On the other hand, the researchers found that the silicon particles have a characteristic of continuously increasing SPF with increasing content. If the silicon particles do not contain a UV blocker, they do not absorb any UV rays, and the UV absorbing ability of the particles used in the present invention is entirely due to the UV blocker substituted therewith. It is the same mechanism of, and it is more appropriate to classify it as an insoluble organic sunscreen because the particles meet the criteria of organic matter-including carbon.

Numerous papers and patent documents are referenced and cited throughout this specification. The disclosures of cited papers and patent documents are incorporated herein by reference in their entirety, so that the level of the technical field to which the present invention belongs and the contents of the present invention are more clearly explained.

The present inventors made diligent research efforts to develop a sunscreen composition which does not penetrate into the human body and does not cause cloudiness and contains a single sunscreen active ingredient. As a result, the inventors of the present invention include a particle containing a UV absorber as an active ingredient, to prepare a composition having excellent UV protection function, the composition exhibits SPF 30 or more, PA + + + without the addition of additional UV protection component It was. In addition, the composition does not contain a skin permeable organic sunscreen ingredients harmful to the human body, by confirming that the skin is safe and free of opaque, to complete the present invention.

Therefore, an object of the present invention is to provide a sunscreen composition containing a single sunscreen active ingredient, there is no sunscreen absorbed by the human body, and does not cause cloudiness.

Another object of the present invention to provide a cosmetic composition for blocking UV rays comprising the composition.

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention, claims and drawings.

According to one aspect of the present invention, the present invention provides a silsesquioxane or siloxane having (i) a silsesquioxane or siloxane having an ultraviolet absorber and (ii) acting as a crosslinking agent and a property modifier and having no ultraviolet absorber. Polysilsesquioxane, silsesquioxane-siloxane blend polymer, silsesquioxane-silica blend polymer, silsesquioxane-siloxane-silica blend polymer and silsesquioxane-siloxane produced by reacting silica It provides a sunscreen composition comprising poly (organic oxide silicon) particles selected from the group consisting of interpolymers as an active ingredient.

The present inventors have diligently researched to develop a sunscreen composition that does not penetrate into the human body and does not cause turbidity and contains a single sunscreen active ingredient. As a result, the inventors of the present invention include a particle containing a UV absorber as an active ingredient, to prepare a composition having excellent UV protection function, the composition exhibits SPF 30 or more, PA + + + without the addition of additional UV protection component It was. In addition, the composition does not contain a skin permeable organic sunscreen ingredients harmful to the human body, by confirming that the skin is safe and free of opaque, to complete the present invention.

According to the present invention, (i) a silsesquioxane or siloxane having an ultraviolet absorber and (ii) a silsesquioxane, siloxane or silica that acts as a crosslinking agent and a property controlling agent and does not have an ultraviolet absorber are prepared. Group consisting of polysilsesquioxane, silsesquioxane-siloxane blend polymer, silsesquioxane-silica hybrid polymer, silsesquioxane-siloxane-silica hybrid polymer and silsesquioxane-siloxane blend polymer It provides a sunscreen composition comprising poly (organic oxide) particles selected from the active ingredient.

The poly (organic oxide) particles having an ultraviolet absorber used in the present invention include various silane compounds to which an ultraviolet absorber is bound. More preferably, the poly (organic oxide) particles having an ultraviolet absorber are particles composed of siloxane, silsesquioxane and silica.

The composition for ultraviolet protection of this invention is (i) p -methoxycinnamidopropylmethyldiethoxysilane, p -methoxycinnamidopropylmethyldimethoxysilane, o -acetoxybenzamidopropylmethyldiethoxysilane, o- Acetoxybenzamidopropylmethyldimethoxysilane, N, N-dimethyl- p -amidopropylmethyldimethoxysilane, N, N-dimethyl- p -amidopropylmethyldiethoxysilane, p -methoxycinamidopropyl Trimethoxysilane, p- methoxycinamidopropyltriethoxysilane, o -acetoxybenzamidopropyltrimethoxysilane, o -acetoxybenzamidopropyltrimethoxysilane, N, N-dimethyl- p Homopolymer or copolymer of amidopropyltrimethoxysilane or N, N-dimethyl- p -amidopropyltriethoxysilane, or (ii) at least one of the polymers with methyltrimethoxysilane, propyltrimethoxy Methoxysilane, phenyltrimethoxysilane, octyltrimethoxysilane or silly The insoluble component comprises a sunscreen containing copolymer particles. In addition, the composition does not contain organic UV-blocking ingredients harmful to the skin and harmful to be harmful to the micronized titanium dioxide (micronized titanium dioxide), micronized zinc oxide (micronized zinc oxide).

As used herein, the term "ultraviolet absorber" means all regions of ultraviolet light.

The ultraviolet absorber used in the present invention includes any ultraviolet absorber known in the art. Preferably, the ultraviolet absorber is cinnamic acid or alkoxy derivative thereof, benzoic acid or ester thereof, p -aminobenzoic acid and derivative thereof, benzoyl benzoic acid or derivative thereof, p-aminostilbene or derivative thereof, benzylidene camphor (benzylidenecamphor) or derivatives thereof, isophthalylidenecamphor, terephthalylidenecamphor, salicylic acid or esters thereof, o -acetoxybenzoic acid, coumarin series ultraviolet absorber, 2-arylbenz Imidazole, 2-arylbenzofuran, 2-arylbenzoxazole or 2-arylindole, more preferably cinnamic acid or an alkoxy derivative thereof, p -aminobenzoic acid or a derivative thereof or salylsilic acid, and even more Preferably p -methoxy cinnamic acid, N, N-dimethyl- p -aminobenzoic acid or o -acetoxybenzoic acid.

Units of the poly (organic silicon oxide) particles used in the present invention are p -aminobenzoic acid, N, N-dimethyl- p -aminobenzoic acid, silsesquioxane containing o -acetoxybenzoic acid, p -aminobenzoic acid, N And siloxane containing N-dimethyl- p -aminobenzoic acid and o -acetoxybenzoic acid.

According to a preferred embodiment of the present invention, the silsesquioxane having the ultraviolet absorber is 4-methoxycinnamidopropylsilsesquioxane, 3-hydroxy-4-benzoyl-phenoxyethylsilsesquioxane, 4- Stilbenamidopropylsilsesquioxane, phenylethyleneanilinopropylsilsesquioxane, N, N-dimethyl- p -aminobenzamidopyrylsilsesquioxane or o -acetoxybenzamidopropylsilsesquioxane More preferably N, N-dimethyl- p -aminobenzamidoprolylsesquioxane.

According to another preferred embodiment of the present invention, the siloxane having the ultraviolet absorber is 4-methoxycinnamidopropylsiloxane, 3-hydroxy-4-benzoyl-phenoxyethylsiloxane, phenylethyleneanilinopropylsiloxane , N, N-dimethyl- p -aminobenzamidoproylsiloxane or o -acetoxybenzamidopropylsiloxane.

In the present specification, the term "crosslinking agent and property control agent" means a material capable of controlling the physical properties and shape of the final product by adjusting the degree of crosslinking of the product according to the amount and method of use.

When the silsesquioxane or siloxane having the ultraviolet absorber and the silsesquioxane, siloxane or silica having a role as a crosslinking agent and a physical property regulator and not having the ultraviolet absorber are reacted, the polysilsesquioxane, silsesquioxane- Siloxane interpolymers, silsesquioxane-silica interpolymers, silsesquioxane-siloxane-silica interpolymers, and silsesquioxane-siloxane interpolymers are produced. Silsesquioxanes, siloxanes or silicas, which serve as the crosslinking agent and physical property modifier and do not have an ultraviolet absorber, are preferably methylsilsesquioxane, phenylsilsesquioxane, propylsilsesquioxane, octylsilsesquioxane , But not limited to, silica and dimethylsiloxane.

In the composition of the present invention, the amount of the ultraviolet absorber-containing silsesquioxane, siloxane and crosslinking agent is not particularly limited and may be used, for example, in a weight ratio of 100: 1 to 1: 5.

According to another preferred embodiment of the present invention, the composition may further comprise a sunscreen component that is not absorbed by the skin. More preferably, the sunscreen component that is not absorbed by the skin is Parsol-SLX, drometrizol group siloxane, diethylhexyl to midotrizone, methylenebis-benzotrizolyl tetramethylbutylphenol, terephthalylidene dicamphor sulfonic acid Or diethylaminohydroxybenzoylhexylbenzoate. The sunscreen ingredient that is not absorbed by the skin may be mixed with the sunscreen ingredient of the present invention to provide a sunscreen composition exhibiting high SPF and PA values.

The sunscreen composition of the present invention can be used for the use of UV protection and fluorescence by ultraviolet light, and more specifically, sunscreen cosmetics, life science products, textiles, rubber, paper, leather, plastics, food And it can be used as a sunscreen with improved stability added to cosmetics.

According to another aspect of the present invention, the present invention provides a cosmetic composition comprising the sunscreen composition of the present invention described above.

The components included in the cosmetic composition of the present invention include components conventionally used in cosmetic compositions in addition to the ultraviolet absorber-containing poly (organic oxide) particles as the active ingredient, and include, for example, stabilizers, solubilizers, vitamins, pigments and perfumes. Such conventional adjuvants, and carriers.

The sunscreen cosmetic composition of the present invention may be prepared in any formulation commonly prepared in the art, for example, solutions, suspensions, emulsions, pastes, gels, creams, lotions, powders, soaps, surfactants It can be formulated as a clean containing, oil, powder foundation, emulsion foundation, wax foundation, spray, and the like, but is not limited thereto. More specifically, it may be prepared in the form of a flexible lotion, nutrition lotion, nutrition cream, massage cream, essence, eye cream, cleansing cream, cleansing foam, cleansing water, pack, spray or powder.

When the formulation of the present invention is a paste, cream or gel, an animal oil, vegetable oil, wax, paraffin, starch, tracant, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc or zinc oxide may be used as the carrier component .

In the case where the formulation of the present invention is a powder or a spray, lactose, talc, silica, aluminum hydroxide, calcium silicate or polyamide powder may be used as a carrier component. Especially, in the case of a spray, a mixture of chlorofluorohydrocarbons, propane / Propane or dimethyl ether.

When the formulation of the present invention is a solution or an emulsion, a solvent, a dissolving agent or an emulsifying agent is used as a carrier component, and examples thereof include water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, , 3-butyl glycol oil, glycerol aliphatic ester, polyethylene glycol or sorbitan fatty acid esters.

In the case where the formulation of the present invention is a suspension, a carrier such as water, a liquid diluent such as ethanol or propylene glycol, a suspending agent such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, Cellulose, aluminum metahydroxide, bentonite, agar or tracant, etc. may be used.

When the formulation of the present invention is an interfacial active agent-containing cleansing, the carrier component may include aliphatic alcohol sulfate, aliphatic alcohol ether sulfate, sulfosuccinic acid monoester, isethionate, imidazolinium derivative, methyltaurate, sarcosinate, fatty acid amide Ether sulfates, alkylamidobetaines, aliphatic alcohols, fatty acid glycerides, fatty acid diethanolamides, vegetable oils, lanolin derivatives, or ethoxylated glycerol fatty acid esters.

When the composition of the present invention is prepared as a pharmaceutical composition, it may include a pharmaceutically acceptable carrier, for example, lactose, dextrose, sucrose, sorbitol, mannitol, starch, acacia rubber, calcium phosphate, alginate Gelatin, calcium silicate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, methyl cellulose, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and / or mineral oils can do.

The features and advantages of the present invention are summarized as follows:

(a) The present invention is not absorbed by the human body, has a strong affinity with organics does not exhibit a clouding phenomenon, and provides a composition for UV blocking with improved UV stability and UV blocking effect.

(b) The composition of the present invention exhibits excellent UV protection and high SPF index even with a single active ingredient of poly (organic oxide) particles.

(c) Therefore, the composition of the present invention is very excellent in application applicability to cosmetics for UV protection, and can be utilized in various fields as a UV protection agent having improved stability.

Figure 1 shows the sunscreen prepared in the composition of Table 4 of Example 5.
Figure 2 shows a sunscreen prepared by adding a small amount of red No. 40 to the composition of Table 3 of Example 4.

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 only for describing the present invention in more detail and that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention .

Example

Throughout this specification, "%" used to denote the concentration of a particular substance is intended to include solids / solids (wt / wt), solid / liquid (wt / The liquid / liquid is (vol / vol)%.

Example  1: poly ( p - Methoxycinamidopropylsilsesquioxane )particle, Ethylhexyl - p - Methoxy cinnamate Containing titanium dioxide Petrolatam SPF  Measure

Petrolatum is dissolved in water in 70 ° C., and poly ( p -methoxycinnamidpropylsilsesquioxane) particles are contained at a concentration of 2% by weight, 5% by weight, 9% by weight or 20% by weight. Ethylhexyl-p-methoxycinnamate and titanium dioxide were mixed and then dispersed with a homogenizer. At this time, the product mixed with 20% by weight of titanium dioxide did not disperse properly, SPF was not measured. The resulting mixture was measured using a UV protection index meter (SPF 290S Analyzer, The Optomertric Group, USA) to obtain SPF values as shown in Table 1.

ingredient Content (% by weight) SPF
Poly ( p -methoxycinnamidpropylsilsesquioxane) particles 2 1.4 5 6.5 9 15 20 27
Ethylhexyl- p -methoxycinnamate 2 3.7 5 11.5 9 13 20 15
Titanium dioxide 2 1.4 5 3.2 9 10.5

Example  2: poly (N, N-dimethyl- p - Aminobenzamidopropylsilsesquioxane Containing particles Petrolatam SPF  Measure

Petrolatame was dissolved in water and dissolved at 70 DEG C, and poly (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane at a concentration of 2.5% by weight, 5% by weight, 7.5% by weight and 10% by weight was added thereto. The particles were mixed and dispersed with a homogenizer. The resulting mixture was measured using a UV protection index (SPF 290S Analyzer, The Optomertric Group, USA) to obtain SPF values of 3.2, 7.5, 12, 21.4 and 28.4, respectively. At 7.5 wt% and 10 wt% concentrations, the UV-A blocking effect of PA ++ was obtained.

Example  3. Poly (N, N-dimethyl- p - Aminobenzamidopropylsilsesquioxane Of creams and creams containing particles SPF  Measure

A cream was prepared in the same manner as in Table 2.

- ingredient Content (% by weight) fair Paid Liquid paraffin 3.86 1) Oil phase heating (70 ℃)-> Melting Kethiol A 3.86 - Pigmentation (DC200 / 100cs) 5.78 2) Putting pigment in oil phase-> dispersion Wax (DC345) 1.93 - beeswax 1.93 3) Dissolution of water phase of separate container (70 ℃) Surfactants
(ABIL EM90) 4.34 - Polyethylene Glycol-10 Dimethicone
(KF 6017) 0.24 4) Slowly add the water phase while stirring the oil phase-> Oil painting Polypropylene 0.10 - Vitamin E acetate 0.10 5) cooling (up to 45 ℃) Olive oil 4.82 - Macadamia Oil 1.93 6) Incense at 45 ℃-> Stirring Octylmethoxycinnamate
(Parsol MCX) 0.39 - - - - 7) Cooling (up to 25 ℃) Pigment Disteadimonium hectorite
(Bentone 38 VCG) 1.25 - Poly (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane) (SESQUVB3) 6.75 * In case of adding extract, add before or after incense. YJ1-87 (color) 1.64 Polysilsesquioxane (PSQ) of 17g of sulfur 5 + 3g of blue 1 + 1% Red 40 (color) 1% 1.25 - - - - - - Awards Distilled water 52.50 1 ~ 3% addition to the main water (reduced by the evaporation heat) D-panthenol 0.48 - glycerin 5.01 - Methyl paraben 0.19 - Phenoxyethanol 0.19 - MgSO ₄ 7H ₂ O 1.45 - EDTA-2Na 0.02 -

In the above table, YJ1-87 is a dye obtained by mixing 17 g of yellow No. 5 and 3 g of blue No. 1. SPF of the cream prepared with the above composition was 24. The sunscreen ingredients contained in the above composition were only 6.75% of poly (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane) and 0.39% of octylmethoxycinnamate (denoted SESQUVB3). SPF of the composition was found to be 40+, PA +++.

Example  4: poly (N, N-dimethyl- p - Aminobenzamidopropylsilsesquioxane Particles and Parsol SLX Sunscreen containing

To prepare a sunscreen cream of the composition shown in Table 3.

Base Content (% by weight) Paid Content (% by weight) Awards Content (% by weight) Cabopol 940 (1%) 18.7 Stearic acid 1.9 2Na-EDTA 0.02 Celtro-F (1%) 1.9 Lanette O 4.7 Methyl paraben 0.1 - Glycerin Fatty Acid Ester-105 1.4 Phenoxyethanol 0.2 Arlacell-165 0.7 glycerin 4.7 Surfactant (Rheodol S-120V) 1.1 1,3-butylene glycol 1.9 Shea Butter 2.3 Sodium hyaluronate 2.8 Phyto SD (Squalane) 1.9 β-glucan 1.9 Methofom seed oil 0.9 water 38.7 Sunflower Seed Oil (Florasun-90) 0.5 Triethanolamine 0.2 Silicon Oil (DC 200) 0.2 - - Silicone Oil (DC 345) 1.9 - - Vitamin E acetate 0.3 - - Polysilicon-15 (Parsol-SLX) 3.5 - - Poly (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane) 8.7 - -

In the composition of Table 3, the sunscreen component contains two kinds of Parsol-SLX 3.5% and SESQUVB3 8.7% poly (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane) particles. The SPF of this composition was found to be 35+ and PA of ++.

Example  5: poly (N, N-dimethyl- p - Aminobenzamidopropylsilsesquioxane Sunscreen containing only particles

The sunscreen of the composition shown in Table 4 was prepared.

Base Content (% by weight) Paid Content (% by weight) Awards Content (% by weight) Cabopol 940 (1%) 18.7 Stearic acid 1.9 2Na-EDTA 0.02 Celtro-F (1%) 1.9 Lanette O 4.7 Methyl paraben 0.1 - Glycerin Fatty Acid Ester-105 1.4 Phenoxyethanol 0.2 Arlacell-165 0.7 glycerin 4.7 Surfactant (Rheodol S-120V) 1.1 1,3-butylene glycol 1.9 Shea Butter 2.3 Sodium hyaluronate 2.8 Phyto SD (Squalane) 1.9 β-glucan 1.9 Methofom seed oil 0.9 water 38.7 Sunflower Seed Oil (Florasun-90) 0.5 Triethanolamine 0.2 Silicon Oil (DC 200) 0.2 - - Silicone Oil (DC 345) 1.9 - - Vitamin E acetate 0.3 - - Polysilicon-15 (Parsol-SLX) 3.5 - - Poly (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane) 8.7 - -

In the composition of Table 4, the sunscreen component contains only 8.7% of SESQUVB3 (N, N-dimethyl- p -aminobenzamidopropylsilsesquioxane) particles, and the SPF of the composition is 20+, PA is ++.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

Claims (8)

Polysilsesquioxanes prepared by reacting (i) silsesquioxanes or siloxanes with ultraviolet absorbers and (ii) silsesquioxanes, siloxanes or silicas that serve as crosslinking agents and property modifiers and do not have ultraviolet absorbers , A silsesquioxane-siloxane blend polymer, a silsesquioxane-silica blend polymer, a silsesquioxane-siloxane-silica blend polymer, and a silsesquioxane-siloxane blend polymer Organosilicon oxide) UV protection composition comprising particles as an active ingredient.
The method of claim 1, wherein the ultraviolet absorber is a cinnamic acid or alkoxy derivatives thereof, benzoic acid or esters thereof, p -aminobenzoic acid or derivatives thereof, benzoylbenzoic acid or derivatives thereof, p-aminostilbene or derivatives thereof, benzyl Isenene camphor or derivatives thereof, isophthalylidenecamphor, terephthalylidenecamphor, salicylic acid or its esters, o -acetoxybenzoic acid, coumarin-based ultraviolet absorbers, 2 -Arylbenzimidazole, 2-arylbenzofuran, 2-arylbenzoxazole or 2-arylindole, characterized in that the composition for sun protection.
The composition of claim 2, wherein the ultraviolet absorber is p -methoxy cinnamic acid, N, N-dimethyl- p -aminobenzoic acid or o -acetoxybenzoic acid.
The silsesquioxane having an ultraviolet absorber according to claim 1, wherein the silsesquioxane having 4-hydroxycinnamic propyl silsesquioxane, 3-hydroxy-4-benzoyl-phenoxyethylsilsesquioxane and 4-stilbenami Dopropylsilsesquioxane, phenylethyleneanilinopropylsilsesquioxane, N, N-dimethyl- p -aminobenzamidoprorylsilsesquioxane or o-acetoxybenzamidopropylsilsesquioxane A composition for blocking ultraviolet rays.
2. The siloxane according to claim 1, wherein the siloxane having an ultraviolet absorber is 4-methoxycinnamidopropylsiloxane, 3-hydroxy-4-benzoyl-phenoxyethylsiloxane, phenylethyleneanilinopropylsiloxane, N, N -Dimethyl- p -aminobenzamidoprolylsiloxane or o-acetoxybenzamidopropylsiloxane.
The composition of claim 1, wherein the composition further comprises a sunscreen component which is not absorbed by the skin.
The method of claim 6, wherein the sunscreen component that is not absorbed by the skin is Parsol-SLX, drometrizol group siloxane, diethylhexyl to midotrizone, methylenebis-benzotrizolyl tetramethylbutylphenol, terephthalylidene dicamphor A sunscreen composition, which is sulfonic acid or diethylaminohydroxybenzoylhexylbenzoate.
A sunscreen cosmetic composition comprising the composition of any one of claims 1 to 7.

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