KR20190064823A - Transparent emulsion composition - Google Patents

Abstract

The present invention provides a clear emulsion composition which has desirable stability at room temperature or high temperatures and may improve the texture of cosmetics. The clear emulsion composition comprises 100 parts by weight of silicone polymers, and with respect to 100 parts by weight of the silicone polymers, further comprises: 100-300 parts by weight of silicone oil; 1-10 parts by weight of amino silicone oil; 50-100 parts by weight of an emulsifier; 50-90 parts by weight of a first moisturizer; 70-110 parts by weight of a second moisturizer; and 1-10 parts by weight of a thickener.

Description

Transparent emulsion composition {TRANSPARENT EMULSION COMPOSITION}

The present invention relates to a transparent emulsion composition used as a cosmetic formulation.

At present, various cosmetic preparations have been developed in order to disperse the oil phase component, which is hardly dispersed in a cosmetic preparation in which the medium is an aqueous phase. Particularly, there is a continuing effort to improve the phenomenon (demixing, phase separation, instability) caused by the presence of an oil phase that is not dispersed or hardly dispersed in water.

There is encapsulation technology as a technique for stabilizing a cosmetic preparation containing the above-mentioned oil phase component. The encapsulation technique is an encapsulation using an organic polymer in order to mix the almost undispersed oil into the water phase, for example, a coacervation method. This is because the anionic property of the cationic aminopolymer present in the oil and the carbomer (acrylic acid) present in the water phase react to form a polymer film to form stable emulsion particles.

The oil emulsion encapsulated by the coacervation method has the advantage of forming an emulsion particle by forming a polymer membrane by ionic bonding without using a surfactant, but has an unstable phase change at room temperature or high temperature. In addition, there is a problem that the cosmetic prepared using the oil emulsion as a cosmetic preparation is inferior in feeling of use, and development of a new emulsion composition for cosmetic use is required to improve it.

Korean Patent Publication No. 2007-0109446

The present invention provides a transparent emulsion composition which is excellent in stability at room temperature or high temperature and can enhance the feeling of use of cosmetics.

The present invention relates to a silicone polymer composition comprising 100 parts by weight of a silicone polymer, 100 to 300 parts by weight of a silicone oil, 1 to 10 parts by weight of an amino silicone oil, 50 to 100 parts by weight of an emulsifier, 50 to 90 parts by weight of a first moisturizer, 70 to 110 parts by weight of a second moisturizer, and 1 to 10 parts by weight of a thickener.

The emulsifier may be a reaction product of ethylene oxide and glycerin.

Glycereth-7, Glycereth-8, Glycereth-12, Glycereth-13, Glycereth- 18, Glycereth-20, Glycereth-26, and Glycereth-31.

The thickening agent may be selected from the group consisting of carbomer, hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylpropylcellulose, hydroxyethylmethylcellulose, hydroxybutylcellulose, hydroxybutylmethylcellulose, hydroxybenzylcellulose, methylcellulose, carboxymethylcellulose , Xanthan gum, gum arabic, and hyaluronic acid.

The transparent emulsion composition of the present invention may further include at least one selected from the group consisting of preservatives, chelating agents, pH adjusting agents and diluents.

On the other hand, the present invention provides a cosmetic comprising the transparent emulsion composition.

The transparent emulsion composition of the present invention can exhibit excellent stability at room temperature or high temperature, and when the transparent emulsion composition is applied to a cosmetic product, the present invention can provide a cosmetic product which shows a feeling of light feeling.

Hereinafter, the present invention will be described.

The transparent emulsion composition of the present invention comprises a silicone polymer, a silicone oil, an aminosilicon oil, an emulsifier, a first humectant, a second humectant, and a thickener.

The silicone polymer contained in the transparent emulsion composition of the present invention forms a gel and may be a silicone elastomer. For example, the silicone polymer of the present invention may be a silicone elastomer obtained by reaction of an organohydrogen siloxane with a compound having at least two aliphatic unsaturation groups in the molecule in the presence of a hydrosilylation catalyst.

For example, the silicone polymer of the present invention may be a dimethicone / vinyl dimethicone crosspolymer.

Further, for example, the structure of the silicone polymer obtained by the reaction of the organohydrogensiloxane (Formula 1) with the compound having at least two aliphatic unsaturated groups in the molecule (Formula 2) is as follows.

X is an integer of 20 to 50, y is an integer of 1 to 10, and x is an integer of 10 to 30 in the formula (2).

Such a silicone polymer may be dispersed in a medium (carrier fluid).

The silicone oil contained in the transparent emulsion composition of the present invention may be used as a medium, and conventionally known components may be used. For example, the silicone oil of the present invention may be a polydimethylsiloxane having a low viscosity of 100 cP or less. Here, the polydimethylsiloxane of the present invention may be dimethicone, cetyl dimethicone, decamethylcyclopentasiloxane, or a polymerized product of at least one of the above.

The content of the silicone oil in the transparent emulsion composition may be 100-300 parts by weight, for example, 200-300 parts by weight based on 100 parts by weight of the silicone polymer. If the content of the silicone oil is less than 100 parts by weight, the feeling of use (softness, feeling of silky feel, gloss, etc.) characteristic of the silicone oil may be deteriorated. If the content of the silicone oil is more than 300 parts by weight, Stability may be deteriorated.

The aminosilicone oil contained in the transparent emulsion composition of the present invention may be conventionally known components. For example, the aminosilicone oil of the present invention may be a compound represented by the following formula (3).

(3)

In Formula 3,

R is an alkyl group having 1 to 5 carbon atoms (e.g., methyl) or an alkoxy group having 1 to 5 carbon atoms (e.g., methoxy)

m is an integer of 30 to 60, and n is an integer of 1 to 10.

The amount of the aminosilicon oil contained in the transparent emulsion composition may be 1 to 10 parts by weight, for example, 1 to 5 parts by weight, based on 100 parts by weight of the silicone polymer. If the content of the aminosilicon oil is less than 1 part by weight, the number of cationic groups capable of reacting with acrylic acid of the thickener (e.g., carbomer) is decreased, and the stability of the emulsion composition may be decreased due to unstable encapsulation. , The content of the aminosilicon oil may increase, and the appearance of the emulsion composition may turn into a deep yellow color or the stability of the emulsion composition may deteriorate.

The emulsifier included in the transparent emulsion composition of the present invention may be a reaction product of ethylene oxide and glycerin. For example, the reactants may be glycereth-7, glycereth-8, glycereth-12, glycereth-13, Glycereth-18, Glycereth-20, Glycereth-26 and Glycereth-31.

The content of the emulsifier in the transparent emulsion composition may be 50 to 100 parts by weight, for example, 60 to 80 parts by weight based on 100 parts by weight of the silicone polymer. If the content of the emulsifier is less than 50 parts by weight, the emulsion composition may not be stable due to insufficient emulsification. If the amount of the emulsifier composition exceeds 100 parts by weight, the appearance of the emulsion composition may become hazy, It can be inhibited.

The first moisturizing agent included in the transparent emulsion composition of the present invention includes glycerin. For example, the first moisturizing agent may be glycerin alone or may be added to glycerin with propylene glycol, dipropylene glycol Or a mixture of at least two of them.

The content of the first moisturizing agent in the transparent emulsion composition may be 50 to 90 parts by weight, for example, 80 to 90 parts by weight based on 100 parts by weight of the silicone polymer. As the content of the first humectant is specified within the above range, the transparent emulsion composition of the present invention exhibits high transparency and can enhance the feeling of use of cosmetic products containing the same. If the content of the first humectant is less than 50 parts by weight, the feeling of use of the cosmetic product may be deteriorated or it may be difficult to ensure transparency of the emulsion composition. When the content of the first humectant exceeds 90 parts by weight, It may be difficult to ensure transparency.

The second moisturizing agent included in the transparent emulsion composition of the present invention includes 1,3-butylene glycol. For example, the second humectant may be composed of 1,3-butylene glycol alone or a mixture of 1,3-butylene glycol and at least one of propylene glycol and dipropylene glycol.

The content of the second moisturizing agent in the transparent emulsion composition may be 70 to 110 parts by weight, for example, 90 to 110 parts by weight based on 100 parts by weight of the silicone polymer. If the content of the second moisturizing agent is less than 70 parts by weight, the feeling of use of the cosmetic obtained by adding the second moisturizing agent may be lowered. If the amount of the second moisturizing agent is more than 110 parts by weight, Can be difficult to secure.

Here, the mixing weight ratio (first humectant: second humectant) of the first humectant and the second humectant is 0.4 to 1.3: 1, for example, 0.5 to 0.9: 1. If the weight ratio is out of the above range, the feeling of use of the cosmetic product may be deteriorated, and the refractive index difference between the oil phase and the water phase may be generated, thereby making it difficult to secure the transparency of the emulsion composition.

The thickening agent contained in the transparent emulsion composition of the present invention may be selected from the group consisting of carbomer, hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylpropylcellulose, hydroxyethylmethylcellulose, hydroxybutylcellulose, hydroxybutylmethylcellulose, hydroxybenzyl Cellulose, methylcellulose, carboxymethylcellulose, xanthan gum, gum arabic, hyaluronic acid, or a mixture of at least one of these, for example, carbomer.

The content of the thickening agent in the transparent emulsion composition may be 1 to 10 parts by weight, for example, 2 to 7 parts by weight, based on 100 parts by weight of the silicone polymer. As the content of the thickener is specified within the above range, the transparent emulsion composition of the present invention can maintain a stable dispersion state at room temperature or high temperature. When the content of the thickener is less than 1 part by weight, the acrylic acid of the thickener capable of reacting with the cationic group on the oil phase may be reduced, resulting in instability of the encapsulation or deterioration of the thickening effect and the stability of the emulsion composition may be deteriorated. The viscosity is too high and can affect the feel of the cosmetic.

Meanwhile, the transparent emulsion composition of the present invention may further include at least one additive selected from the group consisting of a preservative, a chelating agent, a pH adjusting agent, and a diluent in order to further improve the physical properties.

As the preservative further included in the transparent emulsion composition of the present invention, conventionally known components may be used. For example, preservatives include phenoxyethanol, pentylene glycol, methylparaben, propylparaben, butylparaben. A mixture of at least one of these compounds, which is at least one selected from the group consisting of benzoic acid, chlorobenzoic acid, sodium benzoate, hexanediol, propylene glycol, diazolidinyl urea, imidazolinyl urea, sodium idate, calcium benzoate, methyl benzoate, Lt; / RTI >

The amount of the preservative contained in the transparent emulsion composition may be 1 to 40 parts by weight, for example, 5 to 30 parts by weight, based on 100 parts by weight of the silicone polymer. If the content of the preservative is less than 1 part by weight, the preservative effect may be lowered and microorganism habit may be caused. If the preservative is more than 40 parts by weight, an antiseptic may be added to the cosmetic.

When phenoxyethanol and pentylene glycol are used as preservatives, the content of phenoxyethanol in the transparent emulsion composition may be 1 to 10 parts by weight, for example, 5 to 10 parts by weight, based on 100 parts by weight of the silicone polymer Can be. The content of pentylene glycol in the transparent emulsion composition may be 10 to 30 parts by weight, for example 20 to 30 parts by weight, based on 100 parts by weight of the silicone polymer.

The chelating agent further included in the transparent emulsion composition of the present invention is a metal ion encapsulating agent, and conventionally known components can be used. For example, the chelating agent may be disodium EDTA, phosphoric acid, citric acid, ascorbic acid, succinic acid, gluconic acid, sodium polyphosphate, sodium metaphosphate, and the like.

The content of the chelating agent in the transparent emulsion composition may be 0.1 to 5 parts by weight based on 100 parts by weight of the silicone polymer. If the content of the chelating agent is less than 0.1 part by weight, the cosmetic may contain a metal component or ion, which may lower the stability of the cosmetic product. If the content of the chelating agent exceeds 5 parts by weight, it may be insoluble in water and precipitate.

The pH adjusting agent further included in the transparent emulsion composition of the present invention can be conventionally known components. For example, the pH adjusting agent may be sodium hydroxide, triethanolamine, sodium citrate, and the like.

The content of the pH adjusting agent in the transparent emulsion composition may be 0.1 to 5 parts by weight based on 100 parts by weight of the silicone polymer. If the content of the pH adjusting agent is less than 0.1 part by weight, the pH may be too low to reach the target standard, and it may be troublesome to add the pH adjusting agent. If the amount is more than 5 parts by weight, There may be a problem in stability.

The diluent further included in the transparent emulsion composition of the present invention controls the viscosity of the composition, and conventionally known components may be used. For example, the diluent may be water, pure water, deionized water, and the like.

The content of the diluent in the transparent emulsion composition may be 100 to 500 parts by weight, for example, 300 to 500 parts by weight based on 100 parts by weight of the silicone polymer. When the content of the diluent is less than 100 parts by weight, the viscosity of the emulsion composition is high, so that a diluent may be added. If the diluent is more than 500 parts by weight, the refractive index of water is low, The transparency may be lowered or the viscosity may be lowered and the stability of the emulsion composition may be deteriorated.

The transparent emulsion composition of the present invention has excellent transparency and long-term dispersion stability as each component is contained in a specific range. Accordingly, the transparent emulsion composition of the present invention can be applied to various fields, and particularly, can be usefully used as a cosmetic preparation.

The present invention provides a cosmetic comprising the above-mentioned transparent emulsion composition. Since the cosmetic contains the above-mentioned transparent emulsion composition, the phase change can be minimized at room temperature or high temperature to maintain stability, and light feeling can be obtained. The formulation of the cosmetic of the present invention may be a lotion, a milky lotion, a cream, an essence, a cosmetic ointment, a spray, a gel, a detergent or the like.

Hereinafter, the present invention will be described in detail with reference to examples. However, the following examples are illustrative of the present invention, and the present invention is not limited by the following examples.

[ Example  1 to 6]

A transparent emulsion composition having the composition shown in the following Table 1 was prepared by a conventional method (unit: parts by weight).

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Silicone polymer Dimethicone / vinyl dimethicone
Cross polymer 100 100 100 100 100 100 Silicone oil Silicone oil (5cP) 211.3 211.3 211.3 211.3 211.3 211.3 Amino silicone oil Amino silicone oil
(m: 45, n: 1, R = methyl) 1.2 4.4 6.8 1.2 1.2 1.2 antiseptic Phenoxyethanol
(Phenoxy ethanol) 8.3 8.3 8.3 8.3 8.3 8.3 Pentylene glycol 20.8 20.8 20.8 20.8 20.8 20.8 Emulsifier  Glycereth-20 69.7 69.7 69.7 69.7 76.1 52.6 First moisturizer Glycerine 86.5 86.5 86.5 75.3 86.5 86.5 Second moisturizer 1,3-Butylene glycol (1,3-butylene glycol) 99.8 99.8 99.8 99.8 99.8 99.8 Chelating agent Disodium EDTA
(Ethylenediamine teteraacetic acid disodium salt) 0.3 0.3 0.3 0.3 0.3 0.3 Thickener Carbomer 2.6 6.1 8.9 2.6 2.6 2.6 pH adjusting agent Sodium hydroxide (NaOH) 0.4 0.4 0.4 0.4 0.4 0.4 diluent Water 336.6 336.6 336.6 336.6 336.6 336.6

[ Comparative Example  1 to 8]

A transparent emulsion composition having the composition shown in the following Table 2 was prepared by a conventional method (unit: parts by weight).

division Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Silicone polymer Dimethicone / vinyl dimethicone
Cross polymer 100 100 100 100 100 100 100 100 Silicone oil  Silicone oil (5cP) 211.3 211.3 211.3 211.3 211.3 211.3 211.3 211.3 Amino silicone oil Amino silicone oil
(m: 45, n: 1, R = methyl) 0.7 10.9 3.2 3.2 1.2 1.2 1.2 1.2 antiseptic Phenoxy ethanol 8.3 8.3 8.3 8.3 8.3 8.3 8.3 8.3 Pentylene glycol 20.8 20.8 20.8 20.8 20.8 20.8 20.8 20.8 Emulsifier  Glycereth-20 69.7 69.7 69.7 69.7 69.7 69.7 48.2 104.1 First moisturizer Glycerine 86.5 86.5 86.5 86.5 47.1 94.7 86.5 86.5 Second moisturizer 1,3-Butylene glycol (1,3-butylene glycol) 99.8 99.8 99.8 99.8 99.8 99.8 99.8 99.8 Chelating agent Disodium EDTA (Ethylenediamine teteraacetic acid disodium salt) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Thickener Carbomer 2.9 2.9 0.7 10.9 2.6 2.6 2.6 2.6 pH adjusting agent Sodium hydroxide (NaOH) 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 diluent Water 336.6 336.6 336.6 336.6 336.6 336.6 336.6 336.6

[ Experimental Example ]

The properties of the transparent emulsion compositions prepared in Examples and Comparative Examples were evaluated by the following methods, and the results are shown in Tables 3 and 4 below.

1. Appearance: Evaluation of transparency with hazy grade (1-5: lower transparency)

2. Viscosity: Brookfiled viscometer helipatic stand # 93, 4 rpm

3. Particle size: using Marvern Master Size 3000 instrument, μm particle measurement

4. Room Temperature / High Temperature Stability: Evaluation in an oven at 25 ° C (room temperature) and 50 ° C (high temperature)

5. Feeling of feeling: 10 people in the population,

1) Evaluation items: Gloss / Smoothness / Sikiness / Mattness

2) Rating: 5-Very good / 4-Excellent / 3-Average / 2-Bad / 1-Very bad

6. Incense: 10 population, average value of the results evaluated according to the following evaluation items

1) Evaluation items: Sour incense

2) Rating: 5-good / 4-good / 3- normal / 2- poor / 1- very bad

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Exterior Hazy One One One 2 One 2 color No yellowing Iwo Iwo No yellowing No yellowing No yellowing Viscosity (cP) 65000 78000 96000 45000 67000 53000 Particle size (탆) 6.7 9.2 8.2 7.5 7.2 8.9 stability
(7 days) At room temperature (25 ° C) Good Good Good Good Good Good High temperature (50 ℃) Good Separation after 7 days Separation after 7 days Good Good Separation after 7 days Feeling Gloss 3 3 3 3 3 3 Smoothness 4 4 5 2 4 3 Silkiness 4 3 3 3 4 3 Mattness 3.5 2 2 2 3 2 incense 4 3 3 4 2 4

division Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Exterior Hazy 2 2 2 2 5 5 4 2 color No yellowing Yellow Iwo Iwo No yellowing No yellowing No yellowing No yellowing Viscosity (cP) 42000 56000 25000 61000 54000 73000 49000 82000 Particle size (탆) 12.4 10.9 35 11 11.5 10.6 16 9.8 stability
(7 days) At room temperature (25 ° C) Separation after 1 day Separation after 1 day Separation after 1 day Separation after 1 day Separation after 3 days Separation after 3 days Separation within 24 hours Separation within 24 hours High temperature (50 ℃) Separation within 24 hours Separation within 24 hours Separation within 24 hours Separation within 24 hours Separation after 3 days Separation after 3 days Separation within 24 hours Separation within 24 hours Feeling Gloss 3 3 3 3 3 2 2 2 Smoothness 2 4 3 3 2 3 2 3 Silkiness 3 3 3 3 3 3 3 2 Mattness 2 One 2 3 2 4 2 4 incense 3 3 4 4 4 3 4 2

Referring to Tables 3 and 4, the transparent emulsion compositions of Examples 1 to 6 corresponding to the transparent emulsion compositions according to the present invention were superior to the transparent emulsion compositions of Comparative Examples 1 to 8 in terms of feeling and stability have.

Claims (6)

100 parts by weight of silicone polymer,
Based on 100 parts by weight of the silicone polymer,
100 to 300 parts by weight of silicone oil,
1 to 10 parts by weight of an amino silicone oil,
50 to 100 parts by weight of an emulsifier,
50 to 90 parts by weight of the first moisturizing agent,
70 to 110 parts by weight of the second moisturizing agent and
1 to 10 parts by weight of a thickener. The method according to claim 1,
Wherein the mixing weight ratio of the first humectant and the second humectant is 0.4 to 1.3: 1. The method according to claim 1,
Wherein the first moisturizing agent comprises glycerin,
Wherein the second moisturizing agent comprises 1,3-butylene glycol. The method according to claim 1,
Wherein the emulsifier is selected from the group consisting of Glycereth-7, Glycereth-8, Glycereth-12, Glycereth-13, Glycereth- -18), Glycereth-20, Glycereth-26 and Glycereth-31. The method according to claim 1,
Wherein the thickener is selected from the group consisting of carbomer, hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylpropylcellulose, hydroxyethylmethylcellulose, hydroxybutylcellulose, hydroxybutylmethylcellulose, hydroxybenzylcellulose, methylcellulose, carboxymethylcellulose , Xanthan gum, gum arabic, and hyaluronic acid. A cosmetic comprising the transparent emulsion composition according to any one of claims 1 to 5.