KR102021586B1 - Transparent emulsion composition - Google Patents

Abstract

The present invention relates to a transparent emulsion composition having excellent stability and a cosmetic having excellent feeling including the transparent emulsion composition.

Description

Transparent emulsion composition {TRANSPARENT EMULSION COMPOSITION}

The present invention relates to a clear emulsion composition for use in cosmetic formulations.

At present, various formulations of cosmetic preparations have been developed to disperse the components of the oil phase which are hardly dispersed in the cosmetic preparation in which the medium is an aqueous phase. In particular, efforts have been continuously made to improve the phenomenon (demixing, phase separation, instability) caused by the presence of an oil phase which is little or little dispersed in water.

An encapsulation technique is a stabilization technique for cosmetic preparations comprising the components of the oil phase. The encapsulation technique is an encapsulation using an organic polymer to allow the oil which is hardly dispersed to be mixed in an aqueous phase, for example, a coacervation method. This is the anionicity of the cationic amino polymer present in the oil phase and the carbomer (acrylic acid) present in the water phase reacts to form a polymer membrane 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 a problem in which an unstable phase change occurs at room temperature or high temperature. In addition, cosmetics manufactured using the oil emulsion as a cosmetic formulation have a problem in that the feeling of use is deteriorated, and development of a new cosmetic emulsion composition for improving this is required.

Republic of Korea 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 is 100 parts by weight of silicone polymer, 100 to 300 parts by weight of silicone oil, 1 to 10 parts by weight of amino silicone oil, 50 to 100 parts by weight of emulsifier, 50 to 90 parts by weight of first moisturizer, based on 100 parts by weight of the silicone polymer, It provides a transparent emulsion composition comprising 70 to 110 parts by weight of the second moisturizer and 1 to 10 parts by weight of the thickener.

The emulsifier may be a reactant of ethylene oxide and glycerin.

The reactants are Glycereth-7, Glycereth-8, Glycereth-12, Glycereth-13, Glycereth-13 18), Glycereth-20, Glycereth-26, and Glycereth-31.

The thickener is carbomer, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxymethyl propyl cellulose, hydroxyethyl methyl cellulose, hydroxybutyl cellulose, hydroxy butyl methyl cellulose, hydroxybenzyl cellulose, methyl cellulose, carboxymethyl cellulose It may be at least one selected from the group consisting of xanthan gum, gum arabic and hyaluronic acid.

The transparent emulsion composition of the present invention may further include one or more 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 may exhibit excellent stability at room temperature or high temperature, and according to the application of the transparent emulsion composition to cosmetics, the present invention may provide cosmetics exhibiting a light feeling of use.

Hereinafter, the present invention will be described.

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

The silicone polymer included 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 the reaction of an organohydrogensiloxane with a compound having at least two aliphatic unsaturated 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) and the compound (Formula 2) having at least two or more aliphatic unsaturated groups in the molecule is shown as follows.

In Chemical Formula 1, x is an integer of 20 to 50, y is an integer of 1 to 10, and in Chemical Formula 2, x is an integer of 10 to 30.

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

Silicone oil included in the transparent emulsion composition of the present invention is a medium, a conventionally known component can be used. For example, the silicone oil of the present invention may be a low viscosity polydimethylsiloxane of 100 cP or less. Herein, the polydimethylsiloxane of the present invention may be dimethicone, cetyl dimethicone, decamethylcyclopentasiloxane, or polymerized polymers of at least one of them.

The content of the silicone oil in the transparent emulsion composition may be 100 to 300 parts by weight, for example, 200 to 300 parts by weight based on 100 parts by weight of the silicone polymer. When the content of the silicone oil is less than 100 parts by weight, the feeling effect (smoothness, silky feeling, glossiness, etc.) characteristic of the silicone oil may drop, and when the content of the silicone oil exceeds 300 parts by weight, the amount of the silicone oil may be largely emulsified. Stability may be compromised.

As the amino silicone oil included in the transparent emulsion composition of the present invention, conventionally known components may be used. For example, the amino silicone oil of the present invention may be a compound represented by Formula 3 below.

[Formula 3]

In Chemical Formula 3,

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

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

The amount of the amino silicone oil included 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. When the content of the amino silicone oil is less than 1 part by weight, the cationic group that can react with the acrylic acid of the thickener (for example, carbomer) is less, so that the encapsulation becomes unstable and the stability of the emulsion composition may be deteriorated. When exceeded, the content of the amino silicone oil may be increased so that the appearance of the emulsion composition may turn dark yellow or the stability of the emulsion composition may be deteriorated.

The emulsifier included in the transparent emulsion composition of the present invention may be a reactant of ethylene oxide and glycerin. For example, the reactants may be Glycereth-7, Glycereth-8, Glycereth-12, Glycereth-13, Glycereth-13. 18 (Glycereth-18), Glycereth-20, Glycereth-26 and Glycereth-31 can be selected from the group consisting of.

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 of the emulsification is not made properly, the stability of the emulsion composition may be lowered. If the content of the emulsifier exceeds 100 parts by weight, the appearance of the emulsion composition becomes HAZY, the feeling in the cosmetic formulation May be inhibited.

The first moisturizing agent included in the transparent emulsion composition of the present invention includes glycerin. For example, the first moisturizer consists of glycerin alone, or glycerol is converted to propylene glycol, dipropylene glycol One or more of them may be a mixed mixture.

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 moisturizer is specified within the above range, the transparent emulsion composition of the present invention may increase the usability of a cosmetic including the same while exhibiting high transparency. When the content of the first moisturizer is less than 50 parts by weight, it may be difficult to reduce the feeling of use of cosmetics or to secure transparency of the emulsion composition. When the content of the first moisturizer is greater than 90 parts by weight, a difference in refractive index between the oil phase and the water phase may occur. Transparency can be difficult.

The second moisturizing agent included in the transparent emulsion composition of the present invention includes 1,3-butylene glycol. For example, the second moisturizing agent may be composed of 1,3-butylene glycol alone or a mixture of 1,3-butylene glycol or one or more 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. When the content of the second moisturizing agent is less than 70 parts by weight, the light usability of the cosmetic obtained by adding the second moisturizing agent may be reduced. When the content of the second moisturizing agent is more than 110 parts by weight, the refractive index difference between the oil phase and the aqueous phase may occur, thereby causing transparency of the emulsion composition. It can be difficult to secure.

Here, the mixed weight ratio (first moisturizer: second moisturizer) of the first moisturizer and the second moisturizer may be 0.4 to 1.3: 1, for example, 0.5 to 0.9: 1. If the weight ratio is out of the mixture, the usability of the cosmetic may be degraded, and the refractive index difference between the oil phase and the water phase may occur, and thus it may be difficult to secure the transparency of the emulsion composition.

The thickener included in the transparent emulsion composition of the present invention is carbomer, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxymethylpropyl cellulose, hydroxyethyl methyl cellulose, hydroxybutyl cellulose, hydroxybutyl methyl cellulose, hydroxybenzyl It may be cellulose, methylcellulose, carboxymethylcellulose, xanthan gum, gum arabic, or hyaluronic acid, or a mixture of one or more thereof, for example, carbomer.

The amount of the thickener included 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 may 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 that may react with the oily cationic group is reduced, so that the encapsulation may become unstable or the thickening effect may be lowered, resulting in poor stability of the emulsion composition. The viscosity is too high and may affect the feel of the cosmetic.

Meanwhile, the transparent emulsion composition of the present invention may further include one or more additives selected from the group consisting of preservatives, chelating agents, pH adjusting agents, and diluents to increase their physical properties.

Preservatives further included in the transparent emulsion composition of the present invention may be used conventionally known components. For example, preservatives include phenoxy ethanol, pentylene glycol, methylparaben, propylparaben, butylparaben. Benzoic acid, chloro benzoic acid, sodium benzoate, hexane diol, propylene glycol, diazolidinyl urea, imidazolinyl urea, sodium idate, calcium benzoate, methyl benzoate, or alkyl benzoate, or mixtures of one or more thereof Can be.

The amount of the preservative included 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. When the content of the preservative is less than 1 part by weight, the preservative effect may be reduced to cause microbial habitat, and when the content of the preservative exceeds 40 parts by weight, the preservative may be added in excess and may not be applied to cosmetics.

Here, when phenoxy ethanol and pentylene glycol are used as preservatives, the content of phenoxy ethanol in the transparent emulsion composition may be 1 to 10 parts by weight, based on 100 parts by weight of the silicone polymer, for example, 5 to 10% by weight. It may be wealth. In addition, the content of the 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, a conventionally known component may be used. For example, the chelating agent may be ethylenediamine teteraacetic acid disodium salt (EDTA), phosphoric acid, citric acid, ascorbic acid, succinic acid, gluconic acid, sodium polyphosphate, sodium metaphosphate, and the like.

The amount of the chelating agent included in the transparent emulsion composition may be 0.1 to 5 parts by weight based on 100 parts by weight of the silicone polymer. When the content of the chelating agent is less than 0.1 parts by weight, metal components or ions may be present in the cosmetics, and thus the stability of the cosmetics may be lowered.

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

The content of the pH adjusting agent included 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 adjuster is less than 0.1 parts by weight, the pH may be too low to reach the target standard, so that it may be cumbersome to add an additional pH adjuster. When the pH is more than 5 parts by weight, the pH of the emulsion composition may be too high. Stability may be a problem.

Diluents further included in the transparent emulsion composition of the present invention to control the viscosity of the composition, conventionally known components may be used. Diluents can be, for example, water, pure water, deionized water, and the like.

The content of the diluent included 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 may be high, and thus, a diluent may be additionally added. When the content of the diluent exceeds 500 parts by weight, the refractive index of the oil phase and the water phase is low so that the refractive index of the emulsion composition does not match. The transparency may be lowered or the viscosity may be lowered, thereby lowering the stability of the emulsion composition.

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

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

Hereinafter, the present invention will be described in detail with reference to the following Examples. However, the following examples are merely to illustrate the invention, the present invention is not limited by the following examples.

[ Example  1 to 6]

To prepare a transparent emulsion composition having a composition of Table 1 in a conventional manner (unit: parts by weight).

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Silicone polymer Dimethicone / Vinyl Dimethicone
Crosspolymer 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 Phenoxy ethanol
(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  Glyceres-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 2nd moisturizer 1,3-butylene glycol 99.8 99.8 99.8 99.8 99.8 99.8 Chelating agents 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 regulator 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]

To prepare a transparent emulsion composition having a composition of Table 2 in a conventional manner (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
Crosspolymer 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  Glyceres-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 2nd moisturizer 1,3-butylene glycol 99.8 99.8 99.8 99.8 99.8 99.8 99.8 99.8 Chelating agents 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 regulator 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 physical properties of the transparent emulsion compositions prepared in Examples and Comparative Examples were evaluated in the following manner, and the results are shown in Tables 3 and 4 below.

1. Appearance: Visually assess transparency by Hazy grade (1-5: lower is transparent)

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

3. Particle size: use Marvern's Master Size 3000 instrument, measure particle size

4. Room temperature / high temperature stability: evaluated in an oven at 25 ° C (room temperature) and 50 ° C (high temperature)

5. Usability: 10 population, averaged results evaluated according to the following evaluation items

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

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

6. Aroma: 10 population, averaged results evaluated according to the following criteria

1) Evaluation item: Sour flavor

2) Rating: 5-Scent Good / 4-Good / 3-Medium / 2-Poor / 1-Very Poor

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Exterior Hazy One One One 2 One 2 color No yellowing Rice Rice No yellowing No yellowing No yellowing Viscosity (cP) 65000 78000 96000 45000 67000 53000 Particle size (㎛) 6.7 9.2 8.2 7.5 7.2 8.9 stability
(7 days) Room temperature (25 ℃) Good Good Good Good Good Good High temperature (50 ℃) Good After 7 days After 7 days Good Good 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 Yellowing Rice Rice No yellowing No yellowing No yellowing No yellowing Viscosity (cP) 42000 56000 25000 61000 54000 73000 49000 82000 Particle size (㎛) 12.4 10.9 35 11 11.5 10.6 16 9.8 stability
(7 days) Room temperature (25 ℃) After 1 day After 1 day After 1 day After 1 day 3 days later 3 days later Within 24 hours Within 24 hours High temperature (50 ℃) Within 24 hours Within 24 hours Within 24 hours Within 24 hours 3 days later 3 days later Within 24 hours 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 composition of Examples 1 to 6 corresponding to the transparent emulsion composition according to the present invention can be confirmed that the stability and excellent stability compared to the transparent emulsion composition of Comparative Examples 1 to 8 have.

Claims (6)

100 parts by weight of the 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 amino silicone oil,
50 to 100 parts by weight of an emulsifier,
50 to 90 parts by weight of the first moisturizing agent containing glycerin,
70 to 110 parts by weight of a second moisturizer including 1,3-butylene glycol and
1 to 10 parts by weight of thickener,
The mixing weight ratio of the first moisturizer and the second moisturizer is 0.5: 1 to 0.9: 1, a transparent emulsion composition in which the oil phase is dispersed in the aqueous phase medium. delete delete The method according to claim 1,
The emulsifier is Glycereth-7, Glycereth-8, Glycereth-12, Glycereth-13, Glycereth-18 -18), Glycereth-20, Glycereth-26 and Glycereth-31, a transparent emulsion in which an oil phase is dispersed in an aqueous phase medium. Composition. The method according to claim 1,
The thickener is carbomer, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxymethyl propyl cellulose, hydroxyethyl methyl cellulose, hydroxybutyl cellulose, hydroxybutyl methyl cellulose, hydroxybenzyl cellulose, methyl cellulose, carboxymethyl cellulose , Xanthan gum, gum arabic and hyaluronic acid, at least one selected from the group consisting of a transparent emulsion composition in which the oil phase is dispersed in an aqueous medium. Cosmetics comprising a transparent emulsion composition in which an oil phase is dispersed in an aqueous medium according to any one of claims 1, 4 and 5.