CN114306109A

CN114306109A - Composition for preparing micelle emulsion and transparent gel

Info

Publication number: CN114306109A
Application number: CN202011063265.8A
Authority: CN
Inventors: 黄蒙恩; 柳晨; 吴倩; 石璐彦
Original assignee: Evonik Operations GmbH
Current assignee: Evonik Operations GmbH
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-12

Abstract

The present invention discloses a composition for preparing a micelle emulsion or a transparent gel, comprising: the surfactant is prepared from the following components in a mass ratio of 1: 0.8-1.2: 5.0-7.6 of sorbitan fatty acid ester, glycerin fatty acid ester and polyethylene glycol ether of glycerin fatty acid ester; or the mass ratio of 1: 0.8-1.2 polyethylene glycol ethers of sorbitan sesquifatty acid esters and glycerin fatty acid esters; a co-surfactant selected from aliphatic alcohols having a short carbon chain; and an oil selected from ester oils. The present invention also provides a micelle emulsion or a transparent gel comprising the composition and water.

Description

Composition for preparing micelle emulsion and transparent gel

Technical Field

The present invention relates to a composition for preparing a micelle emulsion and a transparent gel, and a micelle emulsion and a transparent gel based on the composition.

Background

The makeup removers currently on the market can be grouped into two categories, water-soluble preparations (water soluble preparations) such as conventional cleansing gels and micellar water, and oil-soluble preparations such as conventional makeup removers and makeup removers ointments. Water-soluble formulations have insufficient cleansing power for oil-based cosmetics such as permanent mascaras, foundations, matte lipsticks, and the like. Oil-soluble formulations have excellent cleansing power but are based only on application to dry skin because water is emulsified by oil-type make-up removers, causing a continuous phase change to water, thereby compromising cleansing power. Such dry use requirements are inconvenient to the consumer. Furthermore, oil-soluble make-up removers are generally costly due to the large amount of oil used and the small amount of water used. In addition, conventional cleansing oils often drip off after application to the skin, resulting in an inconvenient and unpleasant use experience. In summary, the next generation of makeup removers should firstly effectively clean oil-based cosmetics on both dry and wet skin, secondly have reduced costs, and thirdly avoid dripping during use.

Micellar emulsions (also known as microemulsions) are typically composed of oil, water, surfactants and cosurfactants. It is transparent, thermodynamically stable and miscible with a certain amount of water or oil. The addition of a co-surfactant contributes to the ultra-low surface tension and flexibility of the interfacial film, thereby ensuring more efficient dissolution of the cosmetic. Due to the above characteristics, the micelle emulsion is well used as a next-generation makeup remover. First, oil-based cosmetics that are miscible with water or oil can be dissolved on wet skin. Secondly, the water resistance allows the addition of water to the final formulation, thereby reducing formulation costs. Third, thermodynamic stability makes it unnecessary to worry about product stability over shelf life.

JP2005194249 discloses a cleaning composition containing a nonionic surfactant (HLB 6-14) and an oily component, which exhibits an extremely large detergency and transparency even after mixing with a certain amount of water. However, the final formulation contains less than 5% by weight of water, which means that its formulation cost is high and the formulation (formulation) leaves an unpleasant use experience for consumers with oily skin. In addition, the makeup remover may drip during use. The same problem occurs with the formulation disclosed in WO2006003941, which relates to an oily cosmetic cleanser consisting of a polyol fatty acid ester, another nonionic surfactant and oil.

EP1433476 discloses skin cleansing compositions consisting of an oil, a hydrophilic nonionic surfactant, a lipophilic amphiphile, a water-soluble solvent and water, which exhibit a bicontinuous microemulsion structure and ensure a great detergency towards the cosmetics. However, the disclosed formulations are all dilute liquids, which can lead to dripping, thereby compromising the use experience. Furthermore, based on the disclosed examples, it is generally necessary to add more than 25 wt% solvent (ethanol for most of the listed cases) to ensure transparency, water resistance and strong detergency. The use of ethanol or the like in a large amount may irritate the skin.

JP2007112746 discloses a cosmetic cleansing aerosol foam consisting of polyoxyethylene glyceryl isostearate, dodecamethylcyclohexasiloxane, octyl palmitate, propylene glycol, ethanol, water, etc. It exhibits a bicontinuous microemulsion phase and can remove the cosmetic to some extent. However, propylene is becoming less popular with consumers due to its penetration enhancing tendency. Ethanol has long been questioned in the cosmetic market due to the possibility of skin irritation. Furthermore, only 20-50 wt% water can be added to the final formulation, making it difficult to further reduce formulation costs.

JP2009196909 discloses a cleansing emulsion formulated with water, 1, 3-butanediol, 1, 2-octanediol, polyoxyethylene oleyl ether and liquid paraffin. It is a micellar emulsion with great detergency. However, polyoxyethylene oleyl ethers are not as mild and safe as polyol fatty acid esters such as polyethylene glycol fatty acid esters, sorbitan fatty acid esters and alkyl polyglucosides for the selection of nonionic surfactants.

JP2010280643 discloses a bicontinuous microemulsion type cleaning composition consisting of pentaglycerol trioleate, decaglycerol diisostearate, 1, 3-butanediol, dipropylene glycol, ethylhexyl palmitate, hydrogenated polyisobutene and water. However, the formulation requires 44.2% organic solvent. Such high solvent addition levels can pose a serious risk for use on the skin.

Disclosure of Invention

The present invention relates to formulations, particularly make-up removal formulations, to achieve the goal of being able to work well on both dry and wet skin, preferably with reduced formulation costs and avoiding dripping of liquid during use.

The micellar emulsion or gel obtainable from the composition of the present invention exhibits excellent cleansing power on both dry and wet skin based on makeup removal tests on permanent foundations. In some embodiments of the invention, a maximum of 80% by weight of water may be added to the final formulation, which greatly reduces formulation costs. In addition, some formulations exhibit a unique liquid-to-gel transition user experience after application to the skin, which can prevent the discomfort of oil droplet drop off during use.

The present invention provides a composition for preparing a micelle emulsion or a transparent gel, comprising:

a surfactant, which is preferably a sorbitan fatty acid ester such as sorbitan caprylate, a glycerin fatty acid ester such as glycerin oleate, and a polyethylene glycol ether of a glycerin fatty acid ester such as PEG-7 glycerin cocoate in a mass ratio of 1: 0.8-1.2: 5.0-7.6, more preferably 1: 0.9-1.1: 5.7-6.9, most preferably 1: 1: 6.3; or sorbitan sesquifatty acid esters such as sorbitan sesquicaprylate, and polyethylene glycol ethers of glycerin fatty acid esters such as PEG-7 glycerin cocoate in a mass ratio of 1: 0.8-1.2, preferably 1: 1;

a co-surfactant, preferably selected from aliphatic alcohols having a short carbon chain, preferably dipropylene glycol; and

an oil, preferably selected from ester oils, more preferably cetyl ethylhexanoate or isoamyl laurate;

wherein the mass ratio of the oil to the cosurfactant is 1: 4 to 2: 1, preferably 1: 1; preferably, the weight ratio of oil phase comprising oil and co-surfactant to surfactant phase is from about >0 to 7: 4, more preferably about >0 to 6: 4, even more preferably 1: 9 to 4: 6.

the composition may be free of water and is therefore anhydrous. Such anhydrous compositions can be used as base formulations to prepare aqueous micellar emulsions or transparent gels.

In the present invention, the sorbitan fatty acid ester includes, for example, sorbitan C6-C12 fatty acid esters such as sorbitan caprylate;

glycerol fatty acid esters include, for example, glycerol C16-C22 fatty acid esters, such as glycerol oleate, which fatty acids may be selected from saturated fatty acids, unsaturated fatty acids, or mixtures of saturated and unsaturated fatty acids, particularly from plants;

polyethylene glycol (PEG) ethers of glycerol fatty acid esters include, for example, polyethylene glycol ethers of glycerol C8-C14 fatty acid esters, such as polyethylene glycol ethers of glycerol C8-C12 fatty acid esters, having from 5 to 10, for example from 6 to 8, ethylene oxide units, such as PEG-7 glycerol cocoate; and

sorbitan sesquifatty acid esters, including, for example, sorbitan sesquic 6-C12 fatty acid esters, such as sorbitan sesquicaprylate.

In the present invention, the term "oil phase" comprises the oil and the co-surfactant in the composition. The oil phase may contain other oil soluble components in addition to the oil and co-surfactant.

In the present invention, the term "surfactant phase" refers to the surfactant in the composition. The surfactant phase may be only one surfactant or more than one surfactant (or a blend of surfactants) in the composition. Thus, the surfactant phase does not contain other components than surfactants. It is to be understood that the "surfactant phase" is not necessarily the actual physical phase in the final composition or formulation.

In some embodiments, the composition for preparing a micellar emulsion or a transparent gel comprises:

and the surfactant is preferably sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the mass ratio of the sorbitan caprylate to the glyceryl oleate to the PEG-7 glyceryl cocoate is 1: 1: 6.3; or sorbitan sesquicaprylate and PEG-7 glyceryl cocoate, the mass ratio is 1: 1;

wherein the mass ratio of the oil to the cosurfactant is 1: 4 to 2: 1, preferably 1: 1; preferably, the weight ratio of oil phase comprising oil and co-surfactant to surfactant phase is from about >0 to 6: 4, more preferably 1: 9 to 4: 6.

the composition may further comprise up to 10 wt.%, preferably up to 20 wt.%, 30 wt.%, 40 wt.%, 50 wt.%, 60 wt.%, 70 wt.%, 80 wt.% or more water, based on the total weight of the composition.

When the composition is further added or diluted with an appropriate amount of water, the composition may become a micellar emulsion or a transparent gel, which is excellent for applications such as makeup removal. Therefore, the composition can be easily used by those skilled in the art to prepare a micelle emulsion or a transparent gel by diluting with water, or the composition can be easily used by consumers to obtain a micelle emulsion or a transparent gel. In some embodiments, the composition may first become a micellar emulsion when diluted with water, and as the amount of water added increases, the micellar emulsion may become a transparent gel.

The amount of water that can be present in the compositions of the present invention is wide ranging. This means that the composition is very water resistant and performs well in wet applications, such as removing moist skin make-up. In addition, since the water content in the composition can be very high, for example, at most 10 wt%, preferably at most 20 wt%, 30 wt%, 40 wt%, 50 wt%, 60 wt%, 70 wt%, 80 wt% or more, based on the total weight of the composition, when the composition of the present invention is used as a formulation in the form of a micelle emulsion or a transparent gel, the cost of formulation can be significantly reduced.

One skilled in the art can readily prepare micellar emulsions or transparent gels based on the compositions of the present invention, for example, by simply diluting with water or drawing a pseudo-ternary phase diagram (pseudo-ternary phase diagram). Based on the pseudo-ternary phase diagram of the selected ingredients, formulations of the micellar emulsions and gels of the present invention can be readily formulated, which will become micellar emulsions.

The present invention also provides a micellar emulsion or transparent gel comprising: the composition of the present invention and water.

The present invention also provides a micelle emulsion comprising:

an oil, preferably selected from ester oils, more preferably cetyl ethylhexanoate or isoamyl laurate; and water;

the present invention also provides a micelle emulsion comprising:

and the surfactant is preferably sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the mass ratio of the sorbitan caprylate to the glyceryl oleate to the PEG-7 glyceryl cocoate is 1: 1: 6.3 or sorbitan sesqui-caprylate and PEG-7 glyceryl cocoate, the mass ratio of which is 1: 1;

a co-surfactant, preferably selected from aliphatic alcohols having a short carbon chain, preferably dipropylene glycol;

an oil, preferably selected from ester oils, preferably cetyl ethylhexanoate or isoamyl laurate; and water;

wherein the mass ratio of the oil to the cosurfactant is 1: 4 to 2: 1, preferably 1: 1.

in some embodiments, the mass ratio of oil phase comprising oil and co-surfactant to surfactant phase is >0 to 6: 4.

the amount of water is typically >0 wt% to 80 wt%, based on the total weight of the micelle emulsion.

The micellar emulsion is generally transparent.

In some embodiments, when the mass ratio of oil to co-surfactant is 1: 1 and when the weight ratio of oil phase to surfactant phase is from >0 to ≤ 6: 4, the surfactant phase is prepared from a mixture of oil phase and surfactant phase in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and when the composition further comprises a suitable amount of water, a micellar emulsion may be obtained. Depending on the specific composition, the amount of water may range from >0 wt% to up to 80 wt%, based on the total weight of the final composition.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the mass ratio of oil phase to surfactant phase is >0 to < 3: 7, wherein the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about > 0% to 30% by weight of water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the mass ratio of the oil phase to the surfactant phase is more than or equal to 3: 7 to < 4: 6, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about > 0% to 40% by weight of water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the mass ratio of the oil phase to the surfactant phase is not less than 4: 6 to < 5: 5, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about 30 to 40% by weight of water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the mass ratio of the oil phase to the surfactant phase is not less than 5: 5 to < 6: 4, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan octanoate, glyceryl oleate and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, for example 60% by weight of water, based on the total weight of the micellar emulsion.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the mass ratio of the oil phase to the surfactant phase is 6: 4, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about 60 to 80% by weight of water.

In some embodiments, when the mass ratio of oil to co-surfactant is 1: 1, when the weight ratio of the oil phase to the surfactant phase is more than or equal to 1: 9 to < 5: 5, and when the composition further comprises an appropriate amount of water, a micelle emulsion can be obtained in which the surfactant phase is composed of a surfactant phase in a mass ratio of 1: 1 sorbitan sesquicaprylate and PEG-7 glyceryl cocoate. Depending on the specific composition, the amount of water may range from >0 wt% to up to 40 wt%, based on the total weight of the final composition.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the weight ratio of the oil phase to the surfactant phase is more than or equal to 1: 9 to < 2: 8, the surfactant phase is prepared from the following components in a mass ratio of 1: 1 and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about > 0% to 10% by weight of water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the weight ratio of the oil phase to the surfactant phase is more than or equal to 2: 8 to < 3: 7, wherein the surfactant phase is prepared from the following components in a mass ratio of 1: 1 and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about > 0% to 20% by weight of water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the weight ratio of the oil phase to the surfactant phase is more than or equal to 3: 7 to < 4: 6, the surfactant phase is prepared from the following components in a mass ratio of 1: 1 and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example comprising about > 0% to 30% by weight of water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the weight ratio of the oil phase to the surfactant phase is more than or equal to 4: 6 to < 5: 5, the surfactant phase is prepared from the following components in a mass ratio of 1: 1 and PEG-7 glyceryl cocoate, and the micellar emulsion comprises a suitable amount of water, based on the total weight of the micellar emulsion, for example 40 wt% water.

In some embodiments, in the micellar emulsion, the mass ratio of oil to co-surfactant is 1: 1, and the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, the mass ratio of the oily phase to the surfactant phase being >0 to 3: 7 and comprises >0 to 30 wt% of water, based on the total weight of the micelle emulsion. When additional water is added to the micellar emulsion, the micellar emulsion will turn into a gel. This phase change provides a unique use experience for the user.

The present invention also provides a transparent gel comprising:

a surfactant, which is preferably a sorbitan fatty acid ester such as sorbitan caprylate, a glycerin fatty acid ester such as glycerin oleate, and a polyethylene glycol ether of a glycerin fatty acid ester such as PEG-7 glycerin cocoate in a mass ratio of 1: 0.8-1.2: 5.0-7.6, more preferably 1: 0.9-1.1: 5.7-6.9, most preferably 1: 1: 6.3;

wherein the mass ratio of oil to co-surfactant is preferably 1: 1; preferably, the weight ratio of the oil phase comprising oil and co-surfactant to the surfactant phase is from about >0 to ≦ 3: 7.

the present invention also provides a transparent gel comprising:

and the surfactant is preferably sorbitan caprylate, glyceryl oleate and PEG-7 glyceryl cocoate, and the mass ratio of the sorbitan caprylate to the glyceryl oleate to the PEG-7 glyceryl cocoate is 1: 1: 6.3;

wherein the mass ratio of the oil to the cosurfactant is 1: 1;

the mass ratio of the oil phase containing the oil and the cosurfactant to the surfactant phase is more than 0 and less than or equal to 3: 7.

the amount of water is typically 30 to 80 wt% based on the total weight of the gel.

In some embodiments, when the mass ratio of oil to co-surfactant is 1: 1, when the mass ratio of the oil phase to the surfactant phase is more than 0 and less than or equal to 3: 7 and when the composition also comprises a suitable amount of water, a gel can be obtained. Depending on the particular composition, the amount of water may range from about 30% to as much as 80% by weight, based on the total weight of the final composition.

In some embodiments, in the transparent gel, the mass ratio of oil to co-surfactant is 1: 1, the mass ratio of oil phase to surfactant phase is >0 to < 1: 9, and the transparent gel comprises a suitable amount of water, for example from about 30 to 50 wt% water, based on the total weight of the transparent gel.

In some embodiments, in the transparent gel, the mass ratio of oil to co-surfactant is 1: 1, the mass ratio of the oil phase to the surfactant phase is more than or equal to 1: 9 to not more than 2: 8, and the transparent gel comprises a suitable amount of water, for example from about 30 to 80 wt% water, based on the total weight of the transparent gel.

In some embodiments, in the transparent gel, the mass ratio of oil to co-surfactant is 1: 1, the mass ratio of the oil phase to the surfactant phase is more than or equal to 2: 8 to less than or equal to 3: 7, and the clear gel comprises a suitable amount of water, for example from about 40 to 70 wt% water, based on the total weight of the clear gel.

As the surfactant, examples of the surfactant include sorbitan sesquicaprylate (commercially available from Evonik Industries AG, Germany)

Soft SC MB) and PEG-7 Glycine Cocoid (commercially available from Evonik Industries AG)

GC) 1: 1 (mass ratio), sorbitan octanoate, glyceryl oleate (available from Evonik Industries AG)

Remo 95MB) and PEG-7 glyceryl cocoate (available from Evonik Industries AG)

GC) 1: 1: 6.3 (mass ratio).

PEG-7 glyceryl cocoate is a polyethylene glycol (PEG) ether of glyceryl cocoate in which 7 units of ethylene oxide are added to glyceryl cocoate.

As the cosurfactant, an aliphatic alcohol having a short carbon chain (C2-C6 aliphatic alcohol) is preferable. Examples include ethanol, dipropylene glycol, butylene glycol, and the like. Dipropylene glycol is particularly preferred because of its low toxicity, low irritation, and low skin sensitization.

As regards the oils, ester oils such as cetyl ethylhexanoate (commercially available from Evonik Industries AG)

CO), isoamyl laurate (commercially available from Evonik Industries AG)

sesolv MB) and other oils are suitable candidate oils. Combinations of ester oils with other types of hydrocarbon oils or vegetable oils may also be used, provided that the polarity of the final mixture is not greatly changed. Hydrocarbon oils include liquid petrolatum, isohexadecane, and the like. Vegetable oils include vitus vinifera seed oil, helioanthus annuus seed oil, ricinus communis oil, and the like.

The oil may also be a mixture of an ester oil and a minor amount of another oil selected from hydrocarbon oils or vegetable oils. The polarity of the oil should not change significantly if other oils are included. For example, the amount of other oils may be less than 2 weight percent based on the total weight of the composition.

In particular, make-up remover formulations that change from liquid to gel during application can also be easily formulated, thereby avoiding oil dripping and greatly improving the use experience.

For the preparation process, since the formation of the micellar emulsion is spontaneous, it is simply necessary to homogeneously blend the surfactant with the oil, then add the co-surfactant with stirring, and finally add the water and other ingredients and mix homogeneously, for example by gentle stirring at room temperature. All processes can be easily performed at room temperature.

The compositions of the present invention may be used in microemulsion or gel applications, for example in cosmetics, especially for make-up removal, oil recovery, pharmaceuticals, food products, agrochemicals, detergents, fuels, lubricants, cutting oils and corrosion inhibitors, coatings and textile finishing, environmental remediation and detoxification, micropore medium synthesis, biotechnology, analytical applications, liquid membranes, and the like.

Compositions comprising the microemulsions or gels of the present invention are useful for both dry skin and wet skin, with excellent makeup removal properties. The microemulsions or gels of the present invention are effective in cleansing water-resistant cosmetics on wet and dry skin and impart a fresh skin feel. In addition, for microemulsions or gels, formulation costs can be significantly reduced due to the relatively high water content (up to 80 wt%). Due to the low content of organic solvents, the risk of skin irritation is also reduced. In addition, due to the gel state of the gel composition of the present invention, the problem of liquid dripping during use is avoided. The phase change from liquid to gel also provides a unique use experience for the user.

Other advantages of the invention will be apparent to those skilled in the art from reading the specification.

Detailed Description

The present invention will now be described in detail by the following examples. The scope of the invention should not be limited to the embodiments of the examples.

The formulation of the makeup removing composition including the micelle emulsion and the gel was easily formulated by mild stirring at room temperature. All mixing steps in the examples were accomplished by mechanical agitation at about 300 rpm. The information on the product composition used in the examples is listed in table 1. The compositions of the formulations of the examples are listed in table 2, and the compositions of the formulations of the comparative examples are listed in table 3.

In the examples, all percentages are weight percentages based on the total weight of the final formulation.

TABLE 1

All of the products in Table 1 are commercially available from Evonik Industries AG.

Example 1

Make-up removing micelle emulsion formulations with liquid to gel transition were prepared. Under mechanical stirring at about 300rpm, 10.5 wt% of

CO, 12.25% by weight

Remo 95MB and 36.75 wt%

The GC was mixed homogeneously. Then 10.5% by weight dipropylene glycol was added and mixed homogeneously followed by 30% by weight water. The resulting mixture was mixed by mechanical stirring until it became a transparent and homogeneous micelle emulsion. The final formulation gradually turns into a gel (enters the gel phase) after application to moist skin. The final formulation can easily clean permanent foundations (L 'Oreal Paris revitalift essence foundation available from L' Oreal France SAS, Paris, France) under wet and dry conditions. In addition, this unique liquid-to-gel transition enriches the user experience and avoids oil droplets from falling off during cleaning.

Example 2

A makeup removal gel formulation was prepared. Under mechanical stirring at about 300rpm, 7.5 wt% of

CO, 8.75% by weight

Remo 95MB and 26.25 wt%

GC was mixed homogeneously, then 7.5 wt% dipropylene glycol was added and mixed homogeneously, followed by 50 wt% water, and the resulting mixture was mixed until it became a homogeneous gel. The final formulation was a crystal clear gel. The preparation cost can be greatly reduced by adding 50 weight percent of water into the preparation.

Example 3

A makeup remover preparation having high water resistance was prepared. Under mechanical stirring at about 300rpm, 15 wt.% of

CO, 17.5% by weight

Remo 95MB and 52.5 wt%

GC mixed well and then 15 wt% dipropylene glycol was added. The obtained mixture was mixed until it became a transparent and uniform micelle emulsion. The final formulation can tolerate the addition of less than or equal to 70 wt% water and is transparent in appearance.

Example 4

The makeup removing micelle emulsion preparation with high water resistance is prepared. Under mechanical stirring at about 300rpm, 17.5 wt% of

CO, 8.75 weightIn an amount of

Remo 95MB and 26.25 wt%

GC was mixed homogeneously, then 17.5 wt% dipropylene glycol was added and mixed homogeneously, followed by 30 wt% water, and the resulting mixture was mixed until it became a transparent and homogeneous micelle emulsion. The final formulation can tolerate the addition of a total of 60 wt.% or less water and has a transparent appearance.

Example 5

The makeup removing micelle emulsion preparation with high water resistance is prepared. Under mechanical stirring at about 300rpm, 14 wt% of

CO, 21% by weight

Soft SC MB and 21 wt%

GC was mixed homogeneously, then 14 wt% absolute ethanol was added and mixed homogeneously, followed by 30 wt% water, and the resulting mixture was mixed until it became a transparent and homogeneous micelle emulsion. The final formulation is tolerant to the addition of less than or equal to 40% by weight water in total and is transparent in appearance.

Example 6

Sensolv MB, 10.5 wt%

Remo 95MB and 31.5 wt%

GC was mixed homogeneously, then 14 wt% dipropylene glycol was added and mixed homogeneously, followed by 30 wt% water, and the resulting mixture was mixed until it became a transparent and homogeneous micelle emulsion. The final formulation is tolerant to the addition of less than or equal to 40% by weight water in total and is transparent in appearance.

Example 7

Under mechanical stirring at about 300rpm, 20 wt% of

CO, 30% by weight Soft SC MB, 30% by weight

The GC was mixed homogeneously. Then 20% by weight of 1, 3-butanediol was added and mixed homogeneously. After addition of 5 to 10% by weight of water, the final formulation will become a transparent and homogeneous micellar emulsion.

Comparative example 1

Under mechanical stirring at about 300rpm, 15 wt.% of

CO, 52.5% by weight

Remo 95MB, 17.5 wt%

Solve 90MB was mixed homogeneously. Then 15% by weight dipropylene glycol was added and mixed well. The final formulation was slightly cloudy and was added>Turbidity remained after 0 to ≦ 90 wt% water, which means that it could not tolerate water.

Comparative example 2

Under mechanical stirring at about 300rpm, 45 wt% of

CO, 5% by weight

GC. 5% by weight of

Soft SC MB was mixed homogeneously. Then, 45% by weight of dipropylene glycol was added and mixed uniformly. The final formulation was slightly cloudy and was added>Turbidity remained after 0 to ≦ 90 wt% water, which means that it could not tolerate water.

Comparative example 3

Under mechanical stirring at about 300rpm, 45 wt% of

CO, 7.5% by weight

GC. 2.5% by weight of

Remo 95 was mixed homogeneously. Then, 45% by weight of dipropylene glycol was added and mixed uniformly. The final formulation was slightly cloudy and was added>Turbidity remained after 0 to ≦ 90 wt% water, which means that it could not tolerate water.

Evaluation of Makeup removal ability

The formulations obtained in example 1 were evaluated for make-up removal ability on permanent foundations (L' Or Paris RevitaLift essence foundations) using the following method, and the make-up removal ability of the other formulations obtained in examples 2 to 7 could be easily predicted due to the same basic formulation structure.

The human skin was simulated using a frosted surface of a Polymethylmethacrylate (PMMA) plate (5cm x 2mm, grade 2 μm frosted surface) using 2 plates for one sample.

First, color values (Δ L, Δ a, and Δ b) were measured 3 times at the center of an empty PMMA plate using a spectrophotometer (CM-700 d commercially available from Konica Minolta, inc.). Then, 0.025ml of foundation was applied to each plate with a pipette and spread evenly at a uniform rate for 1 minute with a finger stall. The plates were placed in an oven at 25 ℃ and dried for 1 hour. After drying, the color value of the coated plate was measured again 3 times at the same position. To simulate wet skin, 0.1 gram of water was placed on each plate and spread evenly with a finger stall at a uniform rate for 10 seconds. To simulate dry skin, the above steps should be omitted. 0.2g of the test specimen was then quickly applied to each plate and spread evenly with a finger stall at a uniform rate for 20 seconds. The plates were rinsed with tap water at 37 ℃ for 30 seconds and then rubbed with a finger cot while rinsing. Dry paper towels are used to absorb a little water. And the color value of the plate at the same position was measured 3 times.

To calculate the makeup removal capability, Δ E data was first calculated using the following equation with the measured average values of Δ L, Δ a, and Δ b for the empty PMMA plate, the PMMA plate with make-up (foundation), and the cleaned PMMA plate:

then, the makeup removal rate was calculated using the following equation.

The makeup removal percentage of the formulation obtained in example 1 with respect to the lasting foundation tested was 94% under wet conditions and 95% under dry conditions, indicating excellent makeup removal ability.

Table 2 composition of the formulations in the examples

TABLE 3 composition of the formulations in the comparative examples

As used herein, unless otherwise specifically indicated, terms such as "comprises," comprising, "and the like are open-ended terms meaning" including at least.

All references, tests, standards, documents, publications, etc. mentioned herein are incorporated by reference. Where numerical limits or ranges are stated, endpoints are included. Also, all values and subranges within a numerical limit or range are expressly included as if explicitly written out.

The previous description is presented to enable any person skilled in the art to make and use the invention, and is provided in the context of a particular application and its requirements. Various modifications to the preferred embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein. In this regard, in a broad sense, certain embodiments within the invention may not show all of the benefits of the invention.

Claims

1. A composition for preparing a micellar emulsion or a transparent gel comprising:

2. the composition of claim 1, wherein the composition is anhydrous.

3. The composition of claim 1, wherein the composition further comprises up to 10 wt.%, preferably up to 20 wt.%, 30 wt.%, 40 wt.%, 50 wt.%, 60 wt.%, 70 wt.%, 80 wt.% or more water, based on the total weight of the composition.

4. A micellar emulsion or transparent gel comprising the composition of claim 1 and water.

5. A micellar emulsion comprising:

an oil, preferably selected from ester oils, more preferably cetyl ethylhexanoate or isoamyl laurate; and

water;

6. the micelle emulsion of claim 5 wherein the amount of water is >0 wt.% to 80 wt.% based on the total weight of the micelle emulsion.

7. The micelle emulsion of claim 5 wherein:

the mass ratio of the oil to the cosurfactant is 1: 1, the mass ratio of the oil phase to the surfactant phase is more than or equal to 3: 7 to < 4: 6, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate, and PEG-7 glyceryl cocoate, and the amount of water is about > 0% to 40% by weight, based on the total weight of the micellar emulsion.

8. The micelle emulsion of claim 5 wherein:

the mass ratio of the oil to the cosurfactant is 1: 1, the mass ratio of the oil phase to the surfactant phase is not less than 4: 6 to < 5: 5, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate, and PEG-7 glyceryl cocoate, and the amount of water is about 30 to 40% by weight, based on the total weight of the micellar emulsion.

9. The micelle emulsion of claim 5 wherein:

the mass ratio of the oil to the cosurfactant is 1: 1, the mass ratio of the oil phase to the surfactant phase is 6: 4, the surfactant phase is prepared from the following components in a mass ratio of 1: 1: 6.3 sorbitan caprylate, glyceryl oleate, and PEG-7 glyceryl cocoate, and the amount of water is about 60 to 80% by weight, based on the total weight of the micellar emulsion.

10. A transparent gel comprising:

water;

11. the transparent gel of claim 10, wherein the amount of water is 30 to 70 wt% based on the total weight of the gel.

12. The transparent gel of claim 10, wherein:

the mass ratio of the oil phase to the surfactant phase is >0 to < 1: 9, and the amount of water is about 30 to 50 weight percent, based on the total weight of the gel.

13. The transparent gel of claim 10, wherein:

the mass ratio of the oil phase to the surfactant phase is more than or equal to 1: 9 to not more than 2: 8, and the amount of water is about 30 to 80 wt% based on the total weight of the gel.

14. The transparent gel of claim 10, wherein:

the mass ratio of the oil phase to the surfactant phase is > 2: 8 to less than or equal to 3: 7, and the amount of water is about 40 to 70 weight percent, based on the total weight of the gel.

15. Use of the composition of claim 1 in the preparation of a micellar emulsion or a clear gel.