KR100777625B1 - Emulsion composition - Google Patents

Abstract

The present invention relates to (a) O. 1 to 5% by weight of the polysiloxane-polyoxyalkylene copolymer, (B) O. 5 to 1% by weight of the nonionic surfactant, and (c) 10 to 30% by weight of the moisturizing agent. , And (d) 1 to 50% by weight of urea. According to the present invention, there is provided an emulsified formulation having excellent emulsifying power even when the surfactant is lowly blended, suppressing glare caused by urea, and having good usability without stickiness even when the moisturizer is mixed multiplely.

Polysiloxane-polyoxyalkylene copolymers, nonionic surfactants, humectants, urea, emulsifying compositions, emulsifying power, skin irritation

Description

Emulsion composition {EMULSION COMPOSITION}

The present invention relates to an emulsion composition of urea formulation.

More specifically, the present invention relates to an emulsion composition of urea formulations that exhibits excellent moisturizing effect while reducing irritation of urea and has a very refreshing feeling.

In skin care cosmetics and external preparations for skin care, a natural moisturing factor (NMF), a humectant, or the like is used to maintain a beautiful skin condition and to prevent roughening of the skin and to improve the skin.

And among the natural moisturizing factors, urea is a well-known ingredient as having a stratum corneum softening effect, rough skin improvement effect. However, in a system in which urea is incorporated, there is a problem that sometimes causes skin irritation such as burning.

In such a case, there is a measure to suppress the burning of the urea by mixing the moisturizing agents. However, when the moisturizer is mixed in a large amount, the high viscosity and hygroscopicity of the moisturizer itself make the stickiness when the cosmetic is applied to the skin, and the usability is deteriorated.

On the other hand, in the emulsified cosmetics, a surfactant is used as an emulsifier. In view of safety for consumers of sensitive skin, a low blending amount is desired.

In such a present situation, in the urea compounding composition, an emulsifying agent that has excellent emulsifying power even when the compounding amount of the surfactant is reduced, and has good usability without stickiness even when the moisturizing agent is mixed in a large amount, has been desired.

This invention is made | formed in view of the said situation, The emulsion composition which mixes urea WHEREIN: Even if it mix | blends surfactant low, it has the outstanding emulsification power, suppresses the glare by urea, and is sticky even if it mixes a moisturizing agent many times. An object of the present invention is to provide an emulsified formulation having good usability without smudging.

Summary of the Invention

The present invention relates to (a) O. 1 to 5% by weight of the polysiloxane-polyoxyalkylene copolymer, (B) O. 5 to 1% by weight of the nonionic surfactant, and (c) 10 to 30% by weight of the moisturizing agent. And (d) 1 to 50% by weight of urea.

Moreover, this invention provides the said emulsion composition whose said (a) component is a copolymer represented by following formula (I).

In the general formula (I), each symbol represents the following meaning.                 

R ¹ : each independently represent an alkyl group having 1 to 6 carbon atoms, or a phenyl group;

A ¹ , A ² : each independently an alkyl group having 1 to 6 carbon atoms, a phenyl group, or the following general formula (II):

{In Formula II, R <^2> is a hydrogen atom, an acyl group, or a C1-C6 alkyl group, a is an integer of O-5O, b is an integer of O-5O. Only a and b cannot be O at the same time}

A polyoxyalkylene group represented by the above, wherein at least one of A ¹ and A ² is a polyoxyalkylene group represented by the formula (II);

m: an integer of 50 to 10OO;

n: integer of 1-5O

Moreover, this invention provides the said emulsion composition whose said emulsion composition is a skin external preparation.

Moreover, this invention provides the said emulsion composition whose said skin external agent is an emulsion cosmetic.

According to the present invention, in the emulsified composition in which urea is blended, it has excellent emulsifying power even when low surfactant is blended, and furthermore, the usability without stickiness even when the moisturizing agent is mixed and the moisturizing agent is mixed together is good. Emulsifying agents are provided.                 

The emulsion composition of the present invention is preferably used for external skin preparations, in particular emulsion cosmetics.

Best Mode for Carrying Out the Invention

Hereinafter, the present invention will be described in detail.

As a polysiloxane-polyoxyalkylene copolymer as (a) component contained in the emulsion composition of this invention, the copolymer represented by following formula (I) is used preferably.

Formula I

In the general formula (I), each symbol represents the following meaning.

R ¹ : each independently represent an alkyl group having 1 to 6 carbon atoms, or a phenyl group;

A ¹ , A ² : each independently an alkyl group having 1 to 6 carbon atoms, a phenyl group, or the following general formula (II)

Formula II

{In Formula II, R <^2> is a hydrogen atom, an acyl group, or a C1-C6 alkyl group, a is an integer of O-5O, b is an integer of O-5O. Only a and b cannot be O at the same time}

A polyoxyalkylene group represented by: wherein at least one of A ¹ and A ² is a polyoxyalkylene group represented by the formula (II);

m: integer of 50 to 10OO;

n: integer of 1-5O

In the above, A ² is preferably formula II. In addition, each of R ¹ is preferably a methyl group.

(a) A component can be manufactured by making the polyoxyalkylene compound which has a double bond group at the terminal, and the siloxane compound which has the hydrosilyl group terminal which react with the reactive terminal group of this polyoxyalkylene compound react, It is not limited. The component (a) is commercially available as, for example, "Silicon SC 945ON" (manufactured by Shin-Etsu Chemical Co., Ltd.) and the like, and is commercially available.

The compounding quantity of (a) component is 0.1-5 weight% in the composition of this invention, Preferably it is 0.1-1 weight%.

Generally the nonionic surfactant as (b) component is mix | blended with cosmetics, A hydrophilic nonionic surfactant etc. are used preferably. In the present invention, these surfactants are preferably HLB9 or more.

As hydrophilic nonionic surfactant, POE sorbitan fatty acid esters, such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monolaurate, POE sorbitan tetraoleate, POE sorbitol monolaurate, POE POE sorbitol fatty acid esters such as sorbitol monooleate, POE sorbitol pentaoleate, POE sorbitol monostearate, POE glycerin fatty acid esters such as POE glycerin monostearate, POE glycerin triisostearate, POE monooleate, etc. POE fatty acid esters, POE alkyl ethers such as POE lauryl ether, POE alkylphenyl ethers such as POE octylphenyl ether, POE POP alkyl ethers such as POE and POP cetyl ether, tetra POE tetra POE ethylenediamine Condensed Logistics, POE Castor Oil or Cured Castor Oil Derivatives, POE Beeswax Lanolin Derivatives, Lauric Acid Monoethane Alkanolamides such as olamides, POE propylene glycol fatty acid esters, POE alkylamines, POE fatty acid amides, sucrose fatty acid esters, POE niolphenyl formaldehyde condensates, alkylethoxy dimethylamine oxides, trioleyl phosphoric acid, poly Glycerin fatty acid ester etc. are mentioned.

The compounding quantity of (b) component is 0.1-5 weight% in the composition of this invention, Preferably it is 0.1-5 weight%. In the present invention, excellent emulsification effect can be obtained even when the component (b) is lowly blended.

The moisturizing agent as the component (c) generally includes all that can be blended into the cosmetic as a moisturizing agent.

Specific examples include polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, multitol, mucopolysaccharide, hyaluronic acid, chondroitin sulfate, chitosan, and the like. Of course, it is not limited to the example. A moisturizer can select 1 type, or 2 or more types and can use it.

The compounding quantity of (c) component is 10 to 30 weight% in the composition of this invention, Preferably it is 10 to 15 weight%. In the present invention, even when the component (c) is used in such a high blend, it is not sticky and has excellent usability (fresh feeling).

The element as the component (d) may be arbitrarily used as long as it is represented by the chemical formula H ₂ CONH ₂ and can be used in the cosmetic and pharmaceutical fields.

The compounding quantity of (d) component is 1 to 50 weight% in the composition of this invention, Preferably it is 3 to 20 weight%. In this invention, even if it mix | blends a little too much (d) component in this way, it is not burning, it is hypoallergenic, and it has the outstanding usability (moisture feeling).

In this invention, by mix | blending a polysiloxane-polyoxyalkylene copolymer with a urea compounding agent, it becomes possible to considerably reduce the compounding quantity of surfactant, and to prepare the emulsion composition which is easy to use without stickiness even if a lot of moisturizers are mix | blended. I could do it.

That is, the present invention is a technique for preparing a usable emulsifying agent without stickiness by blending a moisturizer with a polysiloxane-polyoxyalkylene copolymer and emulsifying with a small amount of nonionic surfactant in order to reduce stimulation of urea. .

The emulsion composition of the present invention is preferably used as an emulsifying agent for an external preparation for skin, and is particularly preferably used for cosmetics in which usability is important. It is used for many kinds of cosmetics such as basic cosmetics such as lotion, latex, cream and pack, makeup cosmetics such as lipstick and foundation, hair products such as shampoo, rinse and hair dye, and special cosmetics such as sunscreen.                 

The emulsion composition of the present invention, in addition to the above essential components, other components usually used in external preparations such as cosmetics and pharmaceuticals, for example, oil, wetting agents, antioxidants, other surfactants within the range that does not impair the effects of the present invention. , Preservatives, amino acids, fragrances, alcohols, colorants, powders, drugs and the like can be appropriately blended as necessary.

Specifically, For example, Hydrocarbons, such as a liquid paraffin, squalane, and petroleum jelly; Fats and oils such as avocado oil, camellia oil, macadamia nut oil, olive oil and lanolin; Lead such as jojoba oil, carnaba wax and candelilla nap, silicones such as dimethylpolysiloxane and methphenyl siloxane; Higher alcohols such as capryl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, cholesterol, and phytosterol; Higher fatty acids such as capric acid, myristic acid, palmitic acid, stearic acid, behenic acid, lanolin fatty acid, linoleic acid and linolenic acid; Lower alcohols such as ethanol; Antioxidants such as butylhydroxytoluene, tocopherol and phytin; Antibacterial agents, such as benzoic acid, salicylic acid, sorbic acid, the paraoxy benzoic acid alkyl ester, and hexachlorophene, etc. can be mix | blended.

For example, a paraamino benzoic acid ultraviolet absorber, anthranilic acid ultraviolet absorber, a salicylic acid ultraviolet absorber, a cinnamic acid ultraviolet absorber, a benzophenone ultraviolet absorber, a sugar ultraviolet absorber, 3- (4'-methylbenzilidene) -d-camphor, 3-benzilidene-d, 1-camphor, urokanoic acid, urokanoic acid ethyl ester, 2-phenyl-5-methylbenzokizazole, 2,2'-hydroxy-5-methylphenylbenzo Triazole, 2- (2'-hydroxy-5'-t-octylphenyl) benzotriazole, 2- (2'-hydroxy-5'-methylphenylbenzotriazole, dibenzazine, dianisoylmethane, Ultraviolet absorbers, such as 4-methoxy-4'-t-butyldibenzoylmethane and 5- (3, 3- dimethyl- 2-norbornylidene) -3-pentan-2-one, can be mix | blended.

-토코페롤, β-토코페롤, γ-토코페롤, 비타민 E아세테이트 등의 비타민 E류, 비타민 D류, 비타민 H, 판토텐산, 판테틴 등의 비타민류; 니코틴산 아미드, 니코틴산 벤질, γ-오리자놀, 알란토인, 글리틸리틴산(염), 글리틸레틴산 및 그 유도체, 히녹티올, 비사보롤, 유칼프톤, 티몰, 이노시톨, 사이코사포닌, 당근 사포닌, 수세미외 사포닌, 무환자나무 사포닌 등의 사포닌류, 판토테닐에틸에테르, 에티닐에스트라디올, 트라넥삼산, 알부틴, 세파란틴, 프라센타엑기스 등의 각종 약제 등을 배합할 수가 있다.Examples thereof include amino acids such as glycine, alanine, valine, leucine, threonine, phenylalanine, tyrosine, aspartic acid, asparagine, glutamine, taurine, arginine, histidine, and alkali metal salts and hydrochlorides thereof; Organic acids such as acylsalcosinic acid (for example, sodium lauroyl salcosine), glutathione, citric acid, malic acid, tartaric acid and lactic acid; Vitamin B, ascorb, such as vitamin A and its derivatives, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ and its derivatives, vitamin B ₁₂ , vitamin B ₁₅ and its derivatives Vitamin C, such as acid, ascorbic acid sulfate (salt), ascorbic acid phosphate ester (salt), ascorbic acid dipalmitate,

Vitamins such as tocopherol, β-tocopherol, γ-tocopherol and vitamin E acetate, vitamins such as vitamin D, vitamin H, pantothenic acid and pantetin; Nicotinic acid amide, nicotinic acid benzyl, γ-orizanol, allantoin, glytilinic acid (salts), glytilinic acid and its derivatives, hinitol thiol, bisabolol, eucalphtone, thymol, inositol, psychosaponin, carrot saponin, scumamipo saponin, Various drugs, such as saponins, such as an acetonitrile saponin, pantotenyl ethyl ether, ethynyl estradiol, a tranexamic acid, arbutin, a separanthin, and a pracenta extract, can be mix | blended.

In addition, for example, squirrel, red ginseng, lotus flower, orange, sage, yarrow, jeonkyu, early month of gentian, thyme, douki, skin, cherry, horsetail, scrubber, horse chestnut, horsetail, arnica, lily, Extracts of plants such as mugwort, peony, aloe, gardenia, birches and white lily, pigments, neutralizing agents, antioxidants, fragrances, purified water and the like can be blended.

Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto. In addition, a compounding quantity is weight%.

(Examples 1-2, Comparative Examples 1-3)

The cream of the composition shown in following Table 1 was obtained by the conventional method. This was used for the practical use test (moist feeling, soft feeling, burning). The skin conductance value was also measured. The emulsion stability was also evaluated. The results are shown in Table 1.

In Table 1, for the "polysiloxane-polyoxyalkylene copolymer", R ¹ represents a methyl group, A ¹ represents a methyl group, and A ² represents a group represented by the formula (2) in the formula (I) (molecular weight of about 600) .

<Real Test>

By 10 female panelists, the sample was actually applied to the skin, and the moist feeling, the soft feeling (no stickiness), and the hotness were evaluated by the following criteria.

[Moist feeling]

(Evaluation standard)

: 8명 이상이, 촉촉한 느낌이 있다고 평가

: 8 or more people feel moist

(Triangle | delta): It is evaluated that 3-7 people have moist feeling                 

×: Two people or less evaluated that there was a moist feeling

[Smooth feeling (no stickiness)]

(Evaluation standard)

: 8명 이상이, 뽀송뽀송한 느낌이 있다(끈적거리지않는다)고 평가

: 8 or more people had a soft feeling (not sticky)

(Triangle | delta): It is evaluated that 3-7 people have a soft feeling (it is not sticky)

X: Two or less rated it as smooth (not sticky)

[Naughty]

(Evaluation standard)

: 8명 이상이, 화끈거림이 없다고 평가

: 8 or more people rated no burning

△: no rating of 3-7 people

×: Two people or less evaluated that there was no burning

<Conductance value of skin>

Each sample was applied to a specific part of the skin once a day, and left as it was for 3 minutes, followed by washing with purified water and wiping with cotton wool. This injection was repeated for 2 weeks, and the skin conductance of the application site | part was measured.

<Emulsification stability>

After storing each sample at 50 degreeC for 1 month, the state of emulsification was visually observed.

(Evaluation standard)

: 분리가 전혀 보이지 않고, 양호한 유화상태였다

: No separation at all, and a good emulsification state

×: separation was seen

As described above, according to the present invention, in the emulsified composition in which urea is blended, it has excellent emulsifying power even when low surfactant is blended, and furthermore, it is possible to suppress the burning of urea and to stick the humectant even in combination. An emulsifier with good usability is provided.

The emulsion composition of the present invention is preferably used for external skin preparations such as cosmetics.

Claims (4)

delete (a) 0.1 to 5 wt% of a polysiloxane-polyoxyalkylene copolymer, (b) 0.1-5% by weight of a nonionic surfactant, (c) 100% to 30% by weight of a moisturizing agent, and (d) 1 to 50% by weight of urea An emulsified composition containing the above, wherein the component (a) is a copolymer represented by the following formula (I), and the nonionic surfactant as the component (b) is POE sorbitan fatty acid esters, POE sorbitol fatty acid esters, POE glycerin fatty acid Esters, POE fatty acid esters, POE alkyl ethers, POE alkylphenyl ethers, POEPOP alkyl ethers, tetra POE tetra POE ethylenediamine condensates, POE castor oil or hardened castor oil derivatives, POE beeswax and lanolin derivatives , Alkanolamides, POE propylene glycol fatty acid esters, POE alkylamines, POE fatty acid amides, sucrose fatty acid esters, POE niol phenylformaldehyde condensates, alkylethoxy dimethylamine oxides, trioleyl phosphates, polyglycerol fatty acid esters Emulsified composition, characterized in that selected from the group consisting of. Formula I

In the general formula (I), each symbol represents the following meaning. R ¹ : each independently represent an alkyl group having 1 to 6 carbon atoms, or a phenyl group; A ¹ , A ² : each independently an alkyl group having 1 to 6 carbon atoms, a phenyl group, or the following general formula (II)

{In Formula II, R <^2> is a hydrogen atom, an acyl group, or a C1-C6 alkyl group, a is an integer of O-5O, b is an integer of O-5O. Only a and b cannot be O at the same time} A polyoxyalkylene group represented by: wherein at least one of A ¹ and A ² is a polyoxyalkylene group represented by the formula (II); m: an integer of 50 to 10OO; n: integer of 1-5O. The emulsion composition according to claim 2, wherein the emulsion composition is an external preparation for skin. The emulsion composition according to claim 3, wherein the skin external preparation is an emulsion cosmetic.