2-phase composition

Abstract

To provide a two-phase composition which can be converted into a single phase composition when being mixed in which the single phase composition can provide good cosmetic effect such as good makeup removability without an unpleasant feeling and can be returned to a two-phase composition.SOLUTION: There is provided a two-pase composition comprising (a) an oily phase containing at least one hydrocarbon oil and an aqueous phase containing (b) at least one ester of citric acid and (c) water, where the amount of (a) a hydrocarbon oil in the composition is 6 mass% or more, preferably 7 mass% or more, more preferably 8 mass% or more with respect to the total mass of the composition. When not mixed, the composition has two visually distinguishable phases. However, when mixed, the composition can be converted into a single phase composition. A single phase composition such as an emulsion can provide good cosmetic effect such as good makeup removability without an unpleasant feeling.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to two-phase or dual-phase compositions having two visibly separate phases, which can be converted to a single-phase composition, and which can be converted back to a two-phase or dual-phase composition. [Background technology]

[0002] Compositions having two visibly separate phases, particularly an aqueous phase and an oily phase, that are not emulsified with one another upon standing are commonly referred to as "two-phase" (or two-phase) compositions. They differ from emulsions by the fact that the two phases separate upon standing, forming a single interface between the two phases instead of the multiple interfaces between the continuous and discontinuous phases present in emulsions.

[0003] Such two-phase compositions have already been described, for example, in EP-A-370856 and EP-A-603080 for removing make-up, in particular from the eye area.

[0004] In use, the two-phase composition requires mixing, e.g., shaking, to form a single-phase composition, e.g., a "temporary" emulsion, which is then applied to keratin fibers, e.g., the skin. This single-phase composition must provide the targeted cosmetic benefit, such as good makeup removal. Preferably, the single-phase composition can provide the cosmetic benefit without causing discomfort, such as stickiness.

[0005] Therefore, there is a need for a two-phase or dual-phase composition having two visibly separate phases that can be converted when mixed into a single-phase composition that can provide good cosmetic benefits, such as good makeup removal without discomfort, and that can return to its original state, i.e., a two-phase or dual-phase composition. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] EP-A-370856 [Patent Document 2] EP-A-603080 [Patent Document 3] US6491927 [Non-patent literature]

[0007] [Non-Patent Document 1] ASTM Standard D-445 Summary of the Invention [Problem to be solved by the invention]

[0008] It is an object of the present invention to provide a two-phase composition that can be converted into a single-phase composition when mixed, which can provide good cosmetic benefits, such as good makeup removal, without discomfort, and can be converted back into a two-phase composition. [Means for solving the problem]

[0009] The above objectives are: (a) an oil phase comprising at least one hydrocarbon oil; (b) at least one ester of citric acid and (c) an aqueous phase comprising water; A two-phase composition comprising: This can be achieved by a two-phase composition in which the amount of (a) hydrocarbon oil in the composition is 6% by mass or more, preferably 7% by mass or more, more preferably 8% by mass or more, based on the total mass of the composition.

[0010] The composition according to the invention can be converted into a single-phase composition, which can be converted into a two-phase composition.

[0011] (a) The hydrocarbon oil is a volatile hydrocarbon oil, preferably a volatile branched C8-C6 16It may be a hydrocarbon oil, more preferably selected from the group consisting of isohexadecane, isodecane, isododecane, and mixtures thereof.

[0012] The amount of (a) hydrocarbon oil in the composition according to the present invention may be 6% by mass to 50% by mass, preferably 7% by mass to 45% by mass, and more preferably 8% by mass to 40% by mass, relative to the total mass of the composition.

[0013] (b) Esters of citric acid have the chemical formula (I):

[0014] [ka]

[0015] [In the formula, R1, R2 and R3 are independently a hydrogen atom, a saturated or unsaturated, linear or branched C1-C 30 Hydrocarbon group or saturated or unsaturated cyclic C3-C 30 represents an alkyl hydrocarbon, and at least one of R1, R2, and R3 is not a hydrogen atom; R4 represents a hydrogen atom or an R'4-CO- group (wherein R'4 represents a saturated or unsaturated, linear or branched C1 to C8 hydrocarbon group, or a saturated or unsaturated cyclic C3 to C8 hydrocarbon group). It can be expressed as:

[0016] (b) The ester of citric acid may be selected from the group consisting of triethyl citrate, tributyl citrate, trioctyl citrate, triethyl acetyl citrate, tributyl acetyl citrate, tri(2-ethylhexyl) acetyl citrate, and mixtures thereof.

[0017] The amount of (b) citric acid ester in the composition according to the present invention may be 0.1% by mass to 10% by mass, preferably 0.5% by mass to 5% by mass, and more preferably 1% by mass to 3% by mass, relative to the total mass of the composition.

[0018] The amount of (c) water in the composition according to the present invention may be 30% by mass to 93% by mass, preferably 35% by mass to 85% by mass, based on the total mass of the composition.

[0019] The composition according to the present invention may further comprise (a) at least one non-volatile oil that is not a hydrocarbon oil, preferably at least one non-volatile non-polar oil, more preferably a non-volatile ethereal oil.

[0020] The composition according to the present invention may further contain a polar oil such as an ester oil in an amount of 0.01% by mass to 20% by mass, preferably 0.1% by mass to 10% by mass, relative to the total mass of the composition.

[0021] The amount of oily phase in the composition according to the invention may be from 7% to 70% by weight, preferably from 15% to 65% by weight, relative to the total weight of the composition.

[0022] The amount of aqueous phase in the composition according to the invention may be from 30% to 93% by weight, preferably from 35% to 85% by weight, relative to the total weight of the composition.

[0023] The composition according to the present invention may be a cosmetic composition, preferably a cleansing cosmetic composition, more preferably a cleansing cosmetic composition for the skin and eyelashes.

[0024] The present invention also provides A cosmetic method for keratinous materials, comprising: mixing a composition according to the present invention to form a single-phase composition; applying the single-phase composition onto keratinous materials; The present invention relates to a beauty method including: DETAILED DESCRIPTION OF THE INVENTION

[0025] After extensive investigation, the inventors have discovered that it is possible to provide a two-phase composition that can be converted when mixed into a single-phase composition that can provide good cosmetic benefits, such as good makeup removal, without discomfort, and that can be converted back into a two-phase composition.

[0026] Therefore, one aspect of the present invention is (a) an oil phase comprising at least one hydrocarbon oil; (b) at least one ester of citric acid and (c) an aqueous phase comprising water; A two-phase composition comprising: The present invention relates to a two-phase composition, wherein the amount of (a) hydrocarbon oil in the composition is 6% by mass or more, preferably 7% by mass or more, more preferably 8% by mass or more, based on the total mass of the composition.

[0027] The composition according to the present invention has two visually separated phases when not mixed.However, the composition according to the present invention can be converted into a single-phase composition by mixing when used.Single-phase compositions, such as emulsions, can provide good cosmetic effects such as good makeup removal without unpleasant feeling such as stickiness.Single-phase compositions can return to a two-phase composition when not used.

[0028] The composition according to the present invention is stable so that it can maintain the oil and aqueous phases separately when not mixed. Thus, the two-phase or biphasic aspect of the composition according to the present invention can be maintained during storage of the composition according to the present invention, etc.

[0029] In particular, the composition according to the present invention can be stable so that the appearance and / or odor of the composition can remain unchanged for a long period of time under various temperature and storage conditions. For example, the composition according to the present invention can be stable at low temperatures with or without shaking. Therefore, the composition according to the present invention can be well stored at low temperatures, especially during transportation by car, which can cause vibrations, etc.

[0030] When used, the composition according to the present invention is mixed.The two phases in the composition according to the present invention are an oil phase containing at least one oil and an aqueous phase containing water.Therefore, when the composition according to the present invention is mixed, one of the two phases can be dispersed in the other phase, forming an O / W or W / O composition that is visually uniform or forms a single phase, such as an O / W or W / O emulsion.

[0031] The composition of the present invention can be easily mixed. For example, the composition of the present invention can be mixed by shaking by hand. After mixing the composition of the present invention, the composition can form a single phase and can maintain the single phase for a certain period of time without being mixed again.

[0032] According to the present invention, the single-phase composition formed by the two-phase composition can provide good cosmetic effects such as good makeup removal. Therefore, the composition according to the present invention can be used as a cosmetic composition, preferably a cleansing cosmetic composition, more preferably a cleansing cosmetic composition for skin and eyelashes.

[0033] Furthermore, the single-phase composition formed by the two-phase composition according to the present invention can provide a good texture, such as a smooth feel. In addition, it can reduce skin scaling. Skin scaling refers to a significant reduction in the outer layer of the epidermis of the skin and can cause the skin surface to become rough. Therefore, the composition according to the present invention can provide a smooth finish to the skin.

[0034] Furthermore, the single-phase composition formed by the two-phase composition according to the present invention may be more comfortable, for example, it may be less irritating, and thus the composition according to the present invention may be, for example, milder on the skin, particularly on sensitive skin such as the skin around the eyes.

[0035] If the two-phase composition according to the present invention is clear before being mixed, the single-phase composition formed by mixing the two-phase composition can also be clear.

[0036] The single-phase composition formed by the two-phase composition according to the present invention can rapidly revert to a two-phase composition after a certain period of time by inducing phase separation, thereby reforming two visibly separated phases again. According to the present invention, the interface between the reformed two phases can be clean, with no precipitates present at the interface.

[0037] The compositions according to the invention are particularly useful as make-up removers, preferably make-up removers for keratin fibres, more preferably make-up removers for eyelashes, i.e. as mascaras.

[0038] Hereinafter, the compositions according to the present invention will be described in detail.

[0039] [Composition] (hydrocarbon oil) The composition according to the present invention comprises (a) at least one hydrocarbon oil. When two or more hydrocarbon oils are used, they may be the same or different.

[0040] (a) Hydrocarbon oils may form the oil phase of compositions according to the present invention.

[0041] The term "hydrocarbon" as used herein means a compound formed by carbon and hydrogen atoms and does not contain any heteroatoms such as oxygen and nitrogen atoms.

[0042] As used herein, "oil" means a fatty compound or substance in the form of a liquid or paste (non-solid) at room temperature (25°C) under atmospheric pressure (760 mmHg).

[0043] (a) The hydrocarbon oil can be selected from aliphatic hydrocarbon oils, alicyclic hydrocarbon oils and aromatic hydrocarbon oils, preferably aliphatic hydrocarbon oils, more preferably aliphatic saturated hydrocarbon oils.

[0044] The (a) hydrocarbon oil may be volatile or non-volatile. The (a) hydrocarbon oil is preferably volatile. In other words, the (a) hydrocarbon oil is preferably a volatile hydrocarbon oil.

[0045] For the purposes of the present invention, the term "volatile" oil means an oil that is capable of evaporating in less than one hour on contact with keratinous materials at room temperature (25°C) and atmospheric pressure (760 mmHg). Volatile oils are liquid at room temperature and in particular have a non-zero vapor pressure at room temperature and atmospheric pressure, in particular between 0.13 Pa and 40,000 Pa (10 -3 The cosmetic oil may be a volatile cosmetic oil having a vapor pressure in the range of 1.3 Pa to 13000 Pa (0.01 to 100 mmHg), preferably in the range of 1.3 Pa to 1300 Pa (0.1 to 10 mmHg), and preferentially in the range of 1.3 Pa to 1300 Pa (0.1 to 10 mmHg).

[0046] According to one preferred embodiment, the volatile hydrocarbon oil has a flash point above 65°C, and even better above 80°C.

[0047] (a) The hydrocarbon oil is a volatile hydrocarbon oil containing 8 to 16 carbon atoms, preferably a volatile branched C8-C 16 Hydrocarbon oils, more preferably volatile branched C8-C 16 It may be selected from alkanes (also known as isoparaffins). It may even be more preferred that the (a) hydrocarbon oil is selected from the group consisting of isohexadecane, isodecane, isododecane (also known as 2,2,4,4,6-pentamethylheptane), and mixtures thereof.

[0048] On the other hand, the (a) hydrocarbon oil may also be a linear volatile alkane containing 7 to 17 carbon atoms, particularly 9 to 15 carbon atoms, and more particularly 11 to 13 carbon atoms. Particular mention may be made of n-nonadecane, n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane and n-hexadecane, and mixtures thereof.

[0049] Specifically, (a) the hydrocarbon oil may be selected from the group consisting of isohexadecane, isodecane, isododecane, and mixtures thereof.

[0050] The amount of (a) hydrocarbon oil in the composition according to the present invention is 6% by mass or more, preferably 7% by mass or more, and more preferably 8% by mass or more, based on the total mass of the composition.

[0051] The amount of (a) hydrocarbon oil in the composition according to the present invention may be 50% by mass or less, preferably 45% by mass or less, and more preferably 40% by mass or less, relative to the total mass of the composition, provided that the amount of (a) hydrocarbon oil is not 0.

[0052] The amount of (a) hydrocarbon oil in the composition according to the present invention may be 6% by mass to 50% by mass, preferably 7% by mass to 45% by mass, and more preferably 8% by mass to 40% by mass, relative to the total mass of the composition.

[0053] (ester of citric acid) The composition according to the present invention comprises (b) at least one ester of citric acid. When two or more esters of citric acid are used, they may be the same or different.

[0054] (b) Esters of citric acid have the chemical formula (I):

[0055] [ka]

[0056] [In the formula, R1, R2 and R3 are independently a hydrogen atom, a saturated or unsaturated, linear or branched C1-C 30 Hydrocarbon group or saturated or unsaturated cyclic C3-C 30 represents a hydrocarbon group, and at least one of R1, R2, and R3 is not a hydrogen atom; R4 represents a hydrogen atom or an R'4-CO- group (wherein R'4 represents a saturated or unsaturated, linear or branched C1 to C8 hydrocarbon group, or a saturated or unsaturated cyclic C3 to C8 hydrocarbon group). It can be expressed as:

[0057] All of R1, R2 and R3 are saturated or unsaturated, linear or branched C1-C 30 Hydrocarbon group or saturated or unsaturated cyclic C3-C 30 Hydrocarbon groups, more preferably saturated or unsaturated, linear or branched C1-C 30 Hydrocarbon groups, even more preferably linear or branched C1-C 30 It is preferably an alkyl group.

[0058] It is preferred that R4 is a hydrogen atom or an R'4-CO- group (wherein R'4 is a saturated or unsaturated, linear or branched C1 to C8 hydrocarbon group), more preferably a hydrogen atom or an R'4-CO- group (wherein R'4 is a linear or branched C1 to C8 alkyl group), even more preferably a hydrogen atom or an R'4-CO- group (wherein R'4 is a methyl group).

[0059] (b) It may be preferred that the ester of citric acid is selected from the group consisting of triethyl citrate, tributyl citrate, trioctyl citrate, triethyl acetyl citrate, tributyl acetyl citrate, tri(2-ethylhexyl) acetyl citrate, and mixtures thereof, more preferably from the group consisting of triethyl citrate, tributyl citrate, triethyl acetyl citrate, tributyl acetyl citrate, and mixtures thereof, and even more preferably from ethyl citrate.

[0060] The amount of (b) the ester of citric acid in the composition according to the present invention may be 0.1% by mass or more, preferably 0.5% by mass or more, and more preferably 1% by mass or more, relative to the total mass of the composition.

[0061] The amount of (b) ester of citric acid in the composition according to the present invention may be 10% by mass or less, preferably 5% by mass or less, more preferably 3% by mass or less, relative to the total mass of the composition, provided that the amount of (b) ester of citric acid is not zero.

[0062] The amount of (b) citric acid ester in the composition according to the present invention may be 0.1% by mass to 10% by mass, preferably 0.5% by mass to 5% by mass, and more preferably 1% by mass to 3% by mass, relative to the total mass of the composition.

[0063] (water) The composition according to the present invention comprises (c) water.

[0064] (c) Water may form the aqueous phase of the composition according to the present invention.

[0065] The amount of (c) water in the composition according to the present invention may be 30% by mass or more, preferably 35% by mass or more, based on the total mass of the composition.

[0066] The amount of (c) water in the composition according to the present invention may be 93% by mass or less, preferably 85% by mass or less, based on the total mass of the composition, provided that the amount of (c) water is not 0.

[0067] The amount of (c) water in the composition according to the present invention may be 30% by mass to 93% by mass, preferably 35% by mass to 85% by mass, based on the total mass of the composition.

[0068] (fixed oil) The composition according to the present invention may comprise (a) at least one non-volatile oil that is not a hydrocarbon oil. When two or more non-volatile oils are used, they may be the same or different.

[0069] The non-volatile oil may be selected from silicone oils, non-silicone oils, and mixtures thereof.

[0070] Non-volatile silicone oil: Non-volatile silicone oils that may be used in the present invention have a viscosity of 8 centistokes (cSt) (8 x 10 -6 m 2 The viscosity of the silicone oil can be measured according to ASTM standard D-445.

[0071] Among these silicone oils, two types of oils can be distinguished depending on whether they contain phenyl or not, so that the non-volatile silicone oil can be selected from non-phenylated silicone oils and phenylated silicone oils.

[0072] Representative examples of these non-volatile, non-phenylated silicone oils that may be mentioned are polydimethylsiloxanes (dimethicones), alkyldimethicones, vinylmethylmethicones, and also silicones modified with aliphatic groups, optionally fluorinated, or with functional groups such as hydroxyl, thiol and / or amine groups.

[0073] Among the non-volatile, non-phenylated silicone oils that may be mentioned are thus: - PDMS containing alkyl or alkoxy groups pendant and / or at the ends of the silicone chains, each containing from 2 to 24 carbon atoms; - PDMS containing functional groups such as aliphatic groups or hydroxyl, thiol and / or amine groups, polyalkylmethylsiloxanes optionally substituted with fluorinated groups, such as polymethyltrifluoropropyldimethylsiloxane; polyalkylmethylsiloxanes substituted with functional groups such as hydroxyl, thiol and / or amine groups, such as dihydroxydimethylsiloxane (dimethiconol), - polysiloxanes modified with fatty acids, fatty alcohols or polyoxyalkylenes, and - A mixture of these.

[0074] According to one embodiment, the non-volatile silicone oil is chosen from non-volatile non-phenylated linear silicone oils.

[0075] The non-volatile non-phenylated linear silicone oils are in particular those of the formula:

[0076] [ka]

[0077] [In the formula, R1, R2, R5 and R6, together or separately, are an alkyl group having 1 to 6 carbon atoms; R3 and R4, together or separately, are an alkyl group containing 1 to 6 carbon atoms, a vinyl group, an amine group, or a hydroxyl group; X is an alkyl group containing 1 to 6 carbon atoms, a hydroxyl group, or an amine group; n and p are integers selected to have a fluid composition. You can choose from a variety of silicones.

[0078] Among the non-volatile silicone oils that may be used according to the invention, mention may be made of: - the R1 to R6 substituents and X represent methyl groups and p and n are numbers such that the viscosity is 500 000 cSt, such as the product sold under the name SE30 by General Electric, the product sold under the name AK 500 000 by Wacker, the product sold under the name Mirasil DM 500 000 by Bluestar and the product sold under the name Dow Corning 200 Fluid 500 000 cSt by Dow Corning; - R1 to R6 substituents and X represent methyl groups, p and n being numbers such that the viscosity is 300 000 cSt, for example the product sold under the name Wacker Belsil DM 300 000 by the company Wacker; - the R1 to R6 substituents and X represent methyl groups and p and n are numbers such that the viscosity is 60 000 cSt, such as the product sold by Dow Corning under the name Dow Corning 200 Fluid 60 000 CS and by Wacker under the name Wacker Belsil DM 60 000; - R1 to R6 substituents and X represent methyl groups, and p and n are numbers such that the viscosity is 350 cSt, such as the product sold by Dow Corning under the name Dow Corning 200 Fluid 350 CS, and - those in which the R1 to R6 substituents represent methyl groups, the X group represents a hydroxyl group, and n and p are such that the viscosity is 700 cSt, such as the product sold under the name Baysilone Fluid T0.7 by the company Momentive.

[0079] According to another embodiment, the non-volatile silicone oil is chosen from non-volatile phenylated silicone oils.

[0080] Representative examples of these non-volatile phenylated silicone oils that may be mentioned are: - phenyl silicone oil corresponding to the formula:

[0081] [ka]

[0082] [In formula (I), the R groups independently represent methyl or phenyl, provided that at least one R group represents phenyl]. Preferably, in this formula, the phenylsilicone oil comprises at least three, such as at least four, at least five or at least six phenyl groups. - phenyl silicone oil corresponding to the formula:

[0083] [ka]

[0084] In formula (II), the R groups independently represent methyl or phenyl, provided that at least one R group represents phenyl. Preferably, in this formula, the organopolysiloxane contains at least three, for example at least four or at least five phenyl groups. Mixtures of the phenylorganopolysiloxanes described above can be used. Examples that may be mentioned include mixtures of triphenyl, tetraphenyl, or pentaphenylorganopolysiloxanes. - phenyl silicone oil corresponding to the formula:

[0085] [ka]

[0086] [In formula (III), Me represents methyl, and Ph represents phenyl]. Such phenylsilicones are manufactured in particular by Dow Corning under the reference PH-1555HRI or Dow Corning 555 Cosmetic Fluid (chemical name: 1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane; INCI name: trimethylpentaphenyltrisiloxane). Reference Dow Corning 554 Cosmetic Fluid can also be used. - phenyl silicone oil corresponding to the formula:

[0087] [ka]

[0088] [In formula (IV), Me represents methyl, y is between 1 and 1000, and X represents -CH2-CH(CH3)(Ph)]. phenylsilicone oils corresponding to the following formula (V):

[0089] [ka]

[0090] [In formula (V), Me is methyl, Ph is phenyl, OR′ represents an —OSiMe group, y is 0 or ranges from 1 to 1000, and z ranges from 1 to 1000, such that compound (V) is a non-volatile oil.] According to a first embodiment, y ranges from 1 to 1000. Use may be made, for example, of trimethylsiloxyphenyl dimethicone, sold in particular under the reference Belsil PDM 1000 by the company Wacker. According to a second embodiment, y is equal to 0. Use may be made, for example, of phenyltrimethylsiloxytrisiloxane, sold in particular under the reference Dow Corning 556 Cosmetic Grade Fluid. phenylsilicone oils corresponding to the following formula (VI), and mixtures thereof:

[0091] [ka]

[0092] [In formula (VI), - R1~R 10 are, independently of one another, saturated or unsaturated, linear, cyclic or branched C1-C 30 is a hydrocarbon group, - m, n, p and q are, independently of one another, integers between 0 and 900, with the proviso that the sum m+n+q is other than 0, and preferably the sum m+n+q is between 1 and 100. Preferably, the sum m+n+p+q is between 1 and 900, and even better between 1 and 800. Preferably, q is equal to 0. phenylsilicone oils corresponding to the following formula (VII), and mixtures thereof:

[0093] [ka]

[0094] [In formula (VII), R1 to R6 are, independently of one another, saturated or unsaturated, linear, cyclic or branched C1-C 30 is a hydrocarbon group, m, n and p are, independently of one another, integers between 0 and 100, with the proviso that the sum n+m is between 1 and 100; preferably, R1 to R6 are, independently of one another, saturated, linear or branched C1 to C6 30 , especially C1~C 12 R1 to R6 may in particular be identical and may additionally be methyl groups. Preferably, in formula (VII), m=1 or 2 or 3, and / or n=0, and / or p=0 or 1. phenylsilicone oils corresponding to formula (VIII), and mixtures thereof:

[0095] [ka]

[0096] [In formula (VII), - R is C1~C 30 an alkyl group, an aryl group, or an aralkyl group; n is an integer ranging from 0 to 100; - m is an integer ranging from 0 to 100, provided that the sum n+m ranges from 1 to 100. Specifically, the R group of formula (VIII) and the R to R defined above 10 are each a linear or branched, saturated or unsaturated alkyl group, particularly a C2-C 20 , specifically C3~C 16 , more specifically C4~C 10 represents an alkyl group, or a monocyclic or polycyclic C6-C 14 , especially C 10 ~C 13 It can represent an aryl group or an aralkyl group whose aryl and alkyl residues are as defined above. Preferably, R and R to R of formula (VIII)10 may each represent a methyl, ethyl, propyl, isopropyl, decyl, dodecyl or octadecyl group, or alternatively a phenyl, tolyl, benzyl or phenethyl group. According to one embodiment, the viscosity at 25° C. is between 5 and 1500 mm 2 / s (i.e., 5 to 1500 cSt), preferably with a viscosity of 5 to 1000 mm 2 Phenyl silicone oils of formula (VIII) having a viscosity between 5 and 1000 cSt / s can be used. As the phenyl silicone oil of formula (VIII), it is particularly possible to use phenyl trimethicones such as DC556 (22.5 cSt) from Dow Corning, Silbione 70663V30 (28 cSt) oil from Rhone-Poulenc, or diphenyl dimethicones such as Belsil oils from Wacker, in particular Belsil PDM 1000 (1000 cSt), Belsil PDM 200 (200 cSt) and Belsil PDM 20 (20 cSt). The values ​​in parentheses indicate the viscosity at 25°C. phenylsilicone oils corresponding to the following formula, and mixtures thereof:

[0097] [ka]

[0098] [In formula (IX), R1, R2, R5 and R6, together or separately, are an alkyl group containing 1 to 6 carbon atoms; R3 and R4, together or separately, are an alkyl group containing 1 to 6 carbon atoms or an aryl group; X is an alkyl group containing 1 to 6 carbon atoms, a hydroxyl group, or a vinyl group; n and p are selected to give the oil a weight average molecular weight of less than 200,000 g / mol, preferably less than 150,000 g / mol, more preferably less than 100,000 g / mol].

[0099] Phenylsilicones most particularly suitable for use in the present invention may be those corresponding to formula (II) herein above, and in particular to formulas (III), (V) and (VIII).

[0100] More specifically, the phenyl silicone may be chosen from phenyl trimethicone, phenyl dimethicone, phenyl-trimethylsiloxydiphenylsiloxane, diphenyl dimethicone, diphenylmethyl diphenyl trisiloxane and 2-phenylethyl trimethylsiloxysilicate, and mixtures thereof.

[0101] Preferably, the weight average molecular weight of the non-volatile phenylsilicone oil used according to the present invention may be in the range of 500 to 10000 g / mol.

[0102] Non-volatile non-silicone oils: Non-volatile non-silicone oils may include: vegetable oils, such as phytostearyl esters, such as phytostearyl oleate, phytostearyl isostearate and lauroyl / octyldodecyl / phytostearyl glutamate, in particular those whose fatty acids are C 18 ~C 36and triglycerides formed from fatty acid esters of glycerol which may have chain lengths ranging from 0.1 to 1.0, these oils being possibly linear or branched, saturated or unsaturated; these oils are in particular triglycerides of heptanoic or octanoic acid, shea oil, alfalfa oil, poppy oil, pumpkin oil, millet oil, barley oil, quinoa oil, rye oil, candlenut oil, passion flower oil, shea butter oil, aloe oil, sweet almond oil, peach kernel oil, peanut oil, argan oil, avocado oil, baobab oil, borage oil, broccoli oil, calendula oil, camelina oil, carrot oil, oil, safflower oil, hemp oil, rapeseed oil, cottonseed oil, palm oil, pith seed oil, wheat germ oil, jojoba oil, lily oil, macadamia oil, corn oil, meadowfoam oil, St. John's wort oil, monoi oil, hazelnut oil, apricot kernel oil, walnut oil, olive oil, evening primrose oil, palm oil, blackcurrant seed oil, kiwi seed oil, grape seed oil, pistachio oil, pumpkin oil, quinoa oil, musk rose oil, sesame oil, soybean oil, sunflower oil, castor oil and watermelon oil, and mixtures thereof, or alternatively caprylic / capric triglycerides, such as those sold by Stearineries Dubois or under the names Miglyol 810®, 812® and 818® by Dynamit Nobel, - synthetic ethers containing 10 to 40 carbon atoms, synthetic esters, such as oils of formula R1COOR2, in which R1 represents at least one linear or branched fatty acid residue containing from 1 to 40 carbon atoms and R2 represents a hydrocarbon-based chain, in particular branched, containing from 1 to 40 carbon atoms, with the proviso that R1+R2≧10. The esters may be chosen in particular from fatty acid esters of alcohols, such as cetostearyl octanoate, isopropyl alcohol esters, such as isopropyl myristate, isopropyl palmitate, ethyl palmitate, 2-ethylhexyl palmitate, isopropyl stearate, isopropyl isostearate, isostearyl isostearate, octyl stearate, hydroxylated esters, such as isostearyl lactate, octyl hydroxystearate, diisopropyl adipate, heptanoic acid esters, in particular isostearyl heptanoate, octanoic, decanoic or ricinoleic acid alcohols or polyalcohols, such as propylene glycol dioctanoate, cetyl octanoate, tridecyl octanoate, 2-ethylhexyl 4-diheptanoate, 2-ethylhexyl palmitate, alkyl benzoates, in particular C 12 ~C 15 alkyl benzoates, polyethylene glycol diheptanoate, propylene glycol 2-diethylhexanoate, and mixtures thereof; may be selected from hexyl laurate, neopentanoic acid esters, such as isodecyl neopentanoate, isotridecyl neopentanoate, isostearyl neopentanoate, and octyldodecyl neopentanoate; may be selected from isononanoic acid esters, such as isononyl isononanoate, isotridecyl isononanoate, and octyl isononanoate; and may be selected from hydroxylated esters, such as isostearyl lactate and diisostearyl maleate; - polyol esters and pentaerythritol esters, such as dipentaerythrityl tetrahydroxystearate / tetraisostearate; - esters of diol dimers and diacid dimers, copolymers of diol dimers and diacid dimers, and esters thereof, such as dilinoleyldiol dimer / dilinoleyl dimer copolymers, and esters thereof; - copolymers of polyols and diacid dimers, and their esters; fatty alcohols which are liquid at room temperature and have a branched and / or unsaturated carbon chain containing from 12 to 26 carbon atoms, such as 2-octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol; -C 12 ~C 22 Higher fatty acids, such as oleic acid, linoleic acid, and linolenic acid, and mixtures thereof; dialkyl carbonates, the two alkyl chains of which may be the same or different, such as dicaprylyl carbonate, oils with a molar mass between about 400 g / mol and about 10,000 g / mol, in particular between about 650 g / mol and about 10,000 g / mol, in particular between about 750 g / mol and about 7,500 g / mol, more particularly between about 1,000 g / mol and about 5,000 g / mol; mention may be made, alone or in mixtures, of (i) lipophilic polymers, such as polybutylene, polyisobutylene, for example hydrogenated, polydecene and hydrogenated polydecene, vinylpyrrolidone copolymers, for example vinylpyrrolidone / 1-hexadecene copolymers, and polyvinylpyrrolidone (PVP) copolymers, for example C2-C 30 Alkenes, e.g., C3-C 22 Copolymers of alkenes, and combinations thereof; (ii) linear fatty acid esters having a total carbon number ranging from 35 to 70, such as pentaerythrityl tetrapelargonate; (iii) hydroxylated esters, such as polyglyceryl 2-triisostearate; (iv) aromatic esters, such as tridecyl trimellitate; (v) fatty alcohol or branched C 24 ~C 28Esters of fatty acids, such as those described in US Pat. No. 6,491,927, and pentaerythritol esters, and in particular triisoarachidyl citrate, pentaerythrityl tetraisononanoate, glyceryl triisostearate, glyceryl 2-tridecyltetradecanoate, pentaerythrityl tetraisostearate, poly(2-glyceryl) tetraisostearate or pentaerythrityl 2-tetradecyltetradecanoate; (vi) diol dimer esters and polyesters, such as esters of diol dimers with fatty acids and esters of diol dimers with diacids.

[0103] In one embodiment, the non-volatile non-silicone oil is a non-polar oil, preferably an ethereal oil, more preferably an oil of the formula: R 1 -OR 2 (In the formula, R 1 and R 2 each independently being a linear, branched or cyclic C 4~24 Alkyl groups, preferably C 6~18 Alkyl groups, more preferably C 8~12 Indicates an alkyl group. 1 and R 2 (It may be preferable for the The alkyl ether may be selected from dialkyl ethers represented by the following formula:

[0104] Among the linear alkyl groups that may be mentioned are butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, behenyl, docosyl, tricosyl and tetracosyl groups.

[0105] Branched alkyl groups that may be mentioned are 1-methylpropyl, 2-methylpropyl, t-butyl, 1,1-dimethylpropyl, 3-methylhexyl, 5-methylhexyl, 1-ethylhexyl, 2-ethylhexyl, 1-butylpentyl, 5-methyloctyl, 1-ethylhexyl, 2-ethylhexyl, 1-butylpentyl, 5-methyloctyl, 2-butyloctyl, isotridecyl, 2-pentyl The examples are undecyl, 2-hexyldecyl, isostearyl, 2-heptylundecyl, 2-octyldodecyl, 1,3-dimethylbutyl, 1-(1-methylethyl)-2-methylpropyl, 1,1,3,3-tetramethylbutyl, 3,5,5-trimethylhexyl, 1-(2-methylpropyl)-3-methylbutyl, 3,7-dimethyloctyl, and 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl.

[0106] Among the cyclic alkyl groups that may be mentioned are the cyclohexyl group, the 3-methylcyclohexyl group and the 3,3,5-trimethylcyclohexyl group.

[0107] It may be preferred that the ether oil is selected from the group consisting of dicaprylyl ether, dicapryl ether, dilauryl ether, diisostearyl ether, dioctyl ether, nonylphenyl ether, dodecyl dimethyl butyl ether, cetyl dimethyl butyl ether, cetyl isobutyl ether, and mixtures thereof.

[0108] It may be more preferred that the ether oil is selected from the group consisting of dicaprylyl ether, dicapryl ether, dilauryl ether, diisostearyl ether, dioctyl ether, and mixtures thereof.

[0109] Therefore, the compositions according to the invention, and in particular their oil phase, may further comprise (a) at least one non-volatile oil that is not a hydrocarbon oil, preferably at least one non-volatile non-polar oil, more preferably a non-volatile ethereal oil.

[0110] The amount of non-volatile oil in the composition according to the invention may be at least 1% by weight, preferably at least 3% by weight, more preferably at least 5% by weight relative to the total weight of the composition.

[0111] The amount of non-volatile oil in the composition according to the invention may be up to 12% by weight, preferably up to 10% by weight, more preferably up to 8% by weight, relative to the total weight of the composition, provided that the amount of non-volatile oil is not zero.

[0112] The amount of non-volatile oil in the composition according to the present invention may be from 1% to 12% by weight, preferably from 3% to 10% by weight, more preferably from 5% to 8% by weight, relative to the total weight of the composition.

[0113] In one embodiment, the non-volatile oil in the composition according to the present invention can be selected from polar oils, such as ester oils, such as the synthetic esters described above. For example, the composition according to the present invention may contain polar oils, such as ester oils, in an amount of 20% by mass or less, preferably 10% by mass or less, based on the total mass of the composition. On the other hand, the amount of polar oils, such as ester oils, may be 0.01% by mass or more, preferably 0.1% by mass or more, based on the total mass of the composition. Therefore, the amount of polar oils, such as ester oils, may be 0.01% by mass to 20% by mass, preferably 0.1% by mass to 10% by mass, based on the total mass of the composition.

[0114] In another embodiment, it may be preferred that the composition according to the invention, in particular its oil phase, does not contain polar oils, and therefore the composition according to the invention may not contain polar oils such as ester oils.

[0115] (aromatic ketone compounds) The compositions according to the invention, in particular their aqueous phase, may comprise at least one aromatic ketone compound. If two or more aromatic ketone compounds are used, they may be the same or different.

[0116] Aromatic ketone compounds have the chemical formula (I):

[0117] [ka]

[0118] (In the formula, R5, R6, and R7 each independently represent a hydrogen atom, a hydroxyl group, a C1-C6 alkyl group, or a C1-C6 alkoxy group, provided that at least one of R5, R6, and R7 represents a hydroxyl group; R represents a C1-C6 alkyl group or an aryl group. is expressed by

[0119] Examples of C1-C6 alkyl groups include methyl, ethyl and propyl groups, with methyl being preferred.

[0120] Examples of C1-C6 alkoxy groups include methoxy, ethoxy and propoxy groups, with methoxy being preferred.

[0121] Examples of aryl groups include phenyl, substituted phenyl, naphthyl, and substituted naphthyl groups. Examples of substituents include hydroxyl and C1-C6 alkyl groups, such as methyl. Phenyl groups are preferred.

[0122] It is preferred that R in the above chemical formula (I) represents a methyl group, an ethyl group or a phenyl group, preferably a methyl group or a phenyl group, more preferably a methyl group.

[0123] Examples of aromatic ketone compounds include: 2-hydroxyacetophenone, 3-hydroxyacetophenone, 4-hydroxyacetophenone, 2,5-dihydroxyacetophenone, 2,6-dihydroxyacetophenone, 4-hydroxy-3-methoxyacetophenone, 3,4,5-trihydroxyacetophenone, 2',2'-dihydroxybenzophenone, 2-hydroxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, and 3,4,2',4',6'-Pentahydroxybenzophenone Examples include:

[0124] It is preferred that the aromatic ketone compound is hydroxyacetophenone, more preferably monohydroxyacetophenone, even more preferably 4-hydroxyacetophenone.

[0125] The amount of aromatic ketone compound in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0126] The amount of aromatic ketone compounds in the composition according to the present invention may be 5% by mass or less, preferably 3% by mass or less, more preferably 1% by mass or less, relative to the total mass of the composition, provided that the amount of aromatic ketone compounds is not zero.

[0127] The amount of the aromatic ketone compound in the composition according to the present invention may be 0.01% to 5% by mass, preferably 0.05% to 3% by mass, and more preferably 0.1% to 1% by mass, relative to the total mass of the composition.

[0128] (Polyglyceryl fatty acid ester) The composition according to the invention, in particular its aqueous phase, may comprise at least one polyglyceryl fatty acid ester. If two or more polyglyceryl fatty acid esters are used, they may be the same or different.

[0129] The polyglyceryl fatty acid esters may be selected from mono-, di- and triesters of linear or branched, saturated or unsaturated, preferably saturated, fatty acids containing from 2 to 28 carbon atoms, preferably from 4 to 20 carbon atoms, more preferably from 6 to 12 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, capric acid, caprylic acid and myristic acid.

[0130] It is preferred that the polyglyceryl fatty acid ester has a polyglycerol moiety derived from 2 to 6 glycerols, more preferably 4 to 6 glycerols, and even more preferably 5 or 6 glycerols. In other words, it is preferred that the polyglyceryl fatty acid ester contains 2 to 6 polyglyceryl units, more preferably 4 to 6 polyglyceryl units, and even more preferably 5 or 6 polyglyceryl units.

[0131] In the composition according to the invention, the polyglyceryl fatty acid ester may be present in the aqueous phase and therefore may be relatively hydrophilic.

[0132] Therefore, the polyglyceryl fatty acid ester may have an HLB (hydrophilic-lipophilic balance) value of 8.0 or more, preferably 9.0 or more, and more preferably 10.0 or more. When two or more polyglyceryl fatty acid esters are used, the HLB value is determined by the weight average of the HLB values ​​of all the polyglyceryl fatty acid esters.

[0133] The term HLB ("hydrophilic-lipophilic balance") is well known to those skilled in the art and reflects the ratio between the hydrophilic and lipophilic portions of a molecule. The HLB value can be calculated using the formula HLB = 20 * (1 - S / A), where S is the saponification number of the ester and A is the neutralization number of the fatty acid.

[0134] The polyglyceryl fatty acid ester can be selected from polyglyceryl fatty acid monoesters.

[0135] The polyglyceryl fatty acid monoester may have an HLB value of 8.0 to 17.0, preferably 9.0 to 16.0, and more preferably 10.0 to 15.0. When two or more polyglyceryl fatty acid monoesters are used, the HLB value is determined as the mass average of the HLB values ​​of all the polyglyceryl fatty acid monoesters.

[0136] The polyglyceryl fatty acid monoester may be selected from the group consisting of PG4 oleate (HLB: 8.8), PG4 laurate (HLB: 10.3), PG4 isostearate (HLB: 8.2), PG5 laurate (HLB: 10.5), PG6 isostearate (HLB: 10.8), PG4 caprylate (HLB: 14), PG4 caprate (HLB: about 15), PG5 myristate (HLB: 15.4), PG5 stearate (HLB: 15), PG5 oleate (HLB: 12.2), PG6 caprylate (HLB: 14.6), PG6 caprate (HLB: 13.1), PG6 laurate (HLB: 14.1), and mixtures thereof.

[0137] Preferably, the polyglyceryl fatty acid ester is selected from polyglyceryl fatty acid diesters.

[0138] The polyglyceryl fatty acid diester may have an HLB value of 8.0 to 13.0, preferably 9.0 to 12.0, and more preferably 10.0 to 11.0. When two or more polyglyceryl fatty acid diesters are used, the HLB value is determined as the mass average of the HLB values ​​of all the polyglyceryl fatty acid diesters.

[0139] The polyglyceryl fatty acid diester may be selected from the group consisting of PG-6 distearate (HLB: 8), PG-6 dioleate (HLB: 9.8), PG-6 dicaprate (HLB: 10.2), and mixtures thereof.

[0140] As PG6 dicaprate, for example, Sunsoft Q-102H-C available from Taiyo Kagaku Co., Ltd. can be used. As PG6 dioleate, Sunsoft Q-172H-C available from Taiyo Kagaku Co., Ltd. can be used. As PG6 distearate, Emalex DSG-6 available from Nippon Emulsion Co., Ltd. can be used.

[0141] The amount of polyglyceryl fatty acid ester in the composition according to the invention may be greater than or equal to 0.001% by weight, preferably greater than or equal to 0.005% by weight, more preferably greater than or equal to 0.01% by weight, relative to the total weight of the composition.

[0142] The amount of polyglyceryl fatty acid ester in the composition according to the invention may be 1% by weight or less, preferably 0.5% by weight or less, more preferably 0.1% by weight or less, relative to the total weight of the composition, with the proviso that the amount of polyglyceryl fatty acid ester is other than 0.

[0143] The amount of polyglyceryl fatty acid ester in the composition according to the present invention may be from 0.001% to 1% by mass, preferably from 0.005% to 0.5% by mass, more preferably from 0.01% to 0.1% by mass, relative to the total mass of the composition.

[0144] (surfactant) The composition according to the present invention may further comprise at least one additional surfactant different from the polyglyceryl fatty acid ester. When two or more additional surfactants are used, they may be the same or different.

[0145] However, lower amounts of additional surfactant may be preferred.

[0146] The amount of additional surfactant may be up to 1% by weight, preferably up to 0.5% by weight, more preferably up to 0.3% by weight, relative to the total weight of the composition according to the invention. It is particularly preferred that the composition according to the invention does not comprise additional surfactant.

[0147] (Other ingredients) The compositions of the present invention may also include at least one optional or additional ingredient.

[0148] The amount of optional or additional components is not limited, but may be from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight, more preferably from 1% to 10% by weight, relative to the total weight of the composition according to the present invention.

[0149] Optional or additional ingredients may be selected from the group consisting of anionic, cationic, nonionic or amphoteric polymers, organic or inorganic UV filters, peptides and their derivatives, protein hydrolysates, swelling agents, penetrating agents, thickening agents, suspending agents, sequestrants, opacifiers, dyes, vitamins or provitamins, fragrances, preservatives, co-preservatives, stabilizers, and mixtures thereof.

[0150] The compositions according to the invention may comprise one or several cosmetically acceptable organic solvents, which may be alcohols, in particular monohydric alcohols such as ethyl alcohol, isopropyl alcohol, benzyl alcohol and phenylethyl alcohol; diols such as ethylene glycol, propylene glycol and butylene glycol; other polyols such as glycerol, sugars and sugar alcohols; and ethers such as ethylene glycol monomethyl, monoethyl and monobutyl ether, propylene glycol monomethyl, monoethyl and monobutyl ether and butylene glycol monomethyl, monoethyl and monobutyl ether.

[0151] In this case, the organic solvent may be present at a concentration of 0.01% to 20% by mass, preferably 0.1% to 15% by mass, and more preferably 1% to 10% by mass, relative to the total mass of the composition.

[0152] The pH of the composition according to the present invention can be controlled, for example, between 3 and 11, preferably between 3.5 and 9, and more preferably between 4 and 7. The pH can be adjusted to the desired value using at least one acidifying agent and / or at least one basifying agent.

[0153] The acidifying agent can be, for example, an inorganic or organic acid, such as hydrochloric acid, orthophosphoric acid, a carboxylic acid, such as tartaric acid, citric acid, lactic acid or a sulfonic acid.

[0154] The basifying agents are, for example, ammonium hydroxide, alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal carbonates, alkanolamines such as mono-, di-, and triethanolamine, and also their derivatives, preferably sodium hydroxide or potassium hydroxide, and carboxylic acids of the formula:

[0155] [ka]

[0156] (In the formula, R represents alkylene, such as propylene, optionally substituted with hydroxyl or a C1-C4 alkyl group; R1, R2, R3, and R4 independently represent a hydrogen atom, an alkyl group, or a C1-C4 hydroxyalkyl group, which may be exemplified by 1,3-propanediamine and its derivatives. Arginine, urea and monoethanolamine may be preferred.

[0157] The acidifying or basifying agent may be present in an amount ranging from less than 5% by weight, preferably less than or equal to 1% by weight, more preferably less than or equal to 0.1% by weight, relative to the total weight of the composition.

[0158] (form) The composition according to the invention may have two visibly separated phases, one of which is an oil phase and the other an aqueous phase.

[0159] The amount of oily phase in the composition according to the invention may be greater than or equal to 7% by weight, and preferably greater than or equal to 15% by weight, relative to the total weight of the composition.

[0160] The amount of oily phase in the composition according to the invention may be less than or equal to 70% by weight, preferably less than or equal to 65% by weight, relative to the total weight of the composition, provided that the amount of oily phase is not zero.

[0161] The amount of oily phase in the composition according to the invention may be from 7% to 70% by weight, preferably from 15% to 65% by weight, relative to the total weight of the composition.

[0162] The oil phase in the composition according to the present invention may further comprise (a) any hydrophobic component in addition to the hydrocarbon oil, as well as an optional non-volatile oil.

[0163] For example, the oil phase of the composition according to the present invention may comprise at least one lipophilic or lipophilic cosmetic active ingredient. A single type of such cosmetic active ingredient may be used, or two or more different types of such cosmetic active ingredients may be used in combination.

[0164] The amount of aqueous phase in the composition according to the invention may be greater than or equal to 30% by weight, preferably greater than or equal to 35% by weight, relative to the total weight of the composition.

[0165] The amount of aqueous phase in the composition according to the invention may be up to 93% by weight, preferably up to 85% by weight, relative to the total weight of the composition, provided that the amount of aqueous phase is not zero.

[0166] The amount of aqueous phase in the composition according to the invention may be from 30% to 93% by weight, preferably from 35% to 85% by weight, relative to the total weight of the composition.

[0167] The aqueous phase in the composition according to the present invention may further comprise any hydrophilic component in addition to (b) the ester of citric acid and (c) water.

[0168] For example, the aqueous phase of the composition according to the present invention may comprise at least one hydrophilic or water-soluble cosmetic active ingredient. A single type of such cosmetic active ingredient may be used, or two or more different types of such cosmetic active ingredients may be used in combination.

[0169] Additionally, the aqueous phase may contain at least one pH adjuster, such as an acid and / or a base, and / or at least one organic solvent, such as a diol.

[0170] The composition according to the present invention can be converted into a single-phase composition when mixed. After mixing, the composition according to the present invention can be of the O / W type or the W / O type, preferably in the form of an O / W or W / O liquid composition, more preferably in the form of an O / W or W / O emulsion.

[0171] The mass ratio of oil phase / aqueous phase may be 50 / 50 to 5 / 95, preferably 50 / 50 to 10 / 90, and more preferably 50 / 50 to 15 / 85.

[0172] When the specific weight of the oil phase is less than the weight of the aqueous phase, the oil phase will be present above the aqueous phase in the composition according to the present invention. Typically, upon standing, the oil phase will be present above the aqueous phase, since the specific gravity of oil tends to be less than the specific gravity of water.

[0173] [Preparation] The composition according to the present invention can be prepared by combining an oil phase and an aqueous phase, for example, by forming an oil phase by adding (a) a hydrocarbon oil or by mixing ingredients containing (a) a hydrocarbon oil, and for forming an aqueous phase by mixing ingredients containing (b) an ester of citric acid and (c) water.

[0174] For example, the composition according to the present invention comprises: (i) (a) providing at least one optional ingredient to at least one hydrocarbon oil or (a) mixing at least one hydrocarbon oil with at least one optional ingredient to form an oil phase; (ii) combining (b) at least one ester of citric acid and (c) water with at least one optional ingredient to form an aqueous phase; (iii) combining the oil phase and the aqueous phase; It can be prepared by a method comprising:

[0175] The mixing step can be carried out by any conventional means.

[0176] The step of combining the oil phase and the aqueous phase is preferably carried out gently, such as by slowly pouring the oil phase and the aqueous phase into a container such as a vessel.

[0177] [Use and Method] When using the composition according to the present invention, it will be mixed, for example, by shaking by hand (handshaking).After mixing the composition according to the present invention, it can form a single-phase composition.To achieve the targeted cosmetic effect, the single-phase composition can be applied to keratinous materials.

[0178] The keratin material may be skin, nails, mucous membranes such as lips, or keratin fibres such as eyebrows and eyelashes.

[0179] The composition according to the present invention can be preferably used as a cosmetic composition, more preferably as a cleansing cosmetic composition, and even more preferably as a cleansing cosmetic composition for the skin and eyelashes.

[0180] Compositions according to the present invention can provide cosmetic benefits such as makeup removal.

[0181] The composition according to the present invention can also provide a good texture, such as a smooth feel, and therefore it can provide a smooth finish to the skin.

[0182] The compositions according to the present invention are comfortable because they are hypoallergenic and gentle on the skin, especially on sensitive skin such as the skin around the eyes.

[0183] Skin in this context includes facial skin, neck skin and scalp. The compositions according to the invention may also be used on mucous membranes such as the lips.

[0184] The compositions according to the invention can be used as is (as a topical product) or by being impregnated into a porous substrate such as a nonwoven fabric preferably made from cellulose fibers such as cotton.

[0185] In particular, the composition according to the invention may be intended for application onto keratinous materials such as the skin, lips, eyebrows and eyelashes, etc. Therefore, the composition according to the invention can be used for cosmetic methods for keratinous materials such as the skin, lips, eyebrows or eyelashes, preferably the skin and eyelashes.

[0186] The composition according to the present invention can be used for caring for or cleansing keratinous materials, but not for makeup. It is preferred that the composition according to the present invention is used not for skin makeup products such as foundations, but for skin care products such as lotions, or for cleansing products such as makeup removers. Preferably, the composition according to the present invention does not contain iron oxide, or contains iron oxide in an amount of 0.5% by weight or less, more preferably 0.2% by weight or less, and even more preferably 0.1% by weight or less, based on the total weight of the composition according to the present invention.

[0187] The cosmetic method for keratinous materials according to the present invention comprises at least mixing a composition according to the present invention to form a single-phase composition; applying the single-phase composition onto keratinous materials; may include:

[0188] A single-phase composition does not have two visibly separated phases. Instead, a single-phase composition has a single phase, which is typically an emulsion phase. The emulsion phase may not be transparent, but may be translucent or opaque.

[0189] The present invention provides a method for treating a maltodextrin-containing oil in a two-phase composition comprising an aqueous phase comprising (b) an ester of citric acid and (c) water, and an oil phase comprising (a) a hydrocarbon oil, (a) at least one hydrocarbon oil; (b) with at least one ester of citric acid, The present invention may relate to a use for enhancing the makeup removal properties and / or smoothness of a composition, wherein the amount of (a) hydrocarbon oil in the composition is 6% by mass or more, preferably 7% by mass or more, and more preferably 8% by mass or more, relative to the total mass of the composition. [Example]

[0190] The present invention will be described in more detail by examples. However, these examples should not be construed as limiting the scope of the present invention. The following examples are presented as non-limiting examples in the field of the present invention.

[0191] (Examples 1 and 2 and Comparative Examples 1 to 3) The following compositions according to Examples 1 and 2 and Comparative Examples 1 to 3 shown in Table 1 were prepared by mixing the components shown in Table 1 as follows. (1) Mixing the oil phase [OP in Table 1] ingredients at about 25°C to form a homogenous mixture of oil phase ingredients; (2) mixing the components of the aqueous phase [AP in Table 1] at about 60°C to form a homogeneous mixture of the aqueous phase components; and (3) The above ingredients are poured into a package in the order of aqueous phase ingredients, followed by oil phase ingredients.

[0192] It should be noted that "hydroxyacetophenone" means 4-hydroxyacetophenone.

[0193] All component amounts shown in Table 1 are based on "mass %" of the active ingredient.

[0194] [Table 1]

[0195] [evaluation] The compositions of Examples 1 and 2 and Comparative Examples 1 to 3 were evaluated as follows.

[0196] (Smoothness) Each of the compositions according to Examples 1 and 2 and Comparative Examples 1 to 3 was shaken to form an emulsion. 1 mL of the emulsion was applied to a cotton sheet, and the cotton sheet was used to wipe the forearms of three panelists 10 times. After wiping the forearms, the panelists evaluated the smoothness on the skin on a scale of 1 (very unsmooth = sticky) to 5 (very smooth), and the grade scores were averaged.

[0197] The results are shown in Table 1.

[0198] (Makeup removal) A mascara product (MAYBELLINE Volum'Express Hypercurl Waterproof N 01 Black) was applied to the forearms of three panelists and allowed to dry for 30 minutes to form a mascara film on the forearms.

[0199] Each of the compositions according to Examples 1 and 2 and Comparative Examples 1 to 3 was shaken to form an emulsion. 1 mL of the emulsion was applied to a cotton sheet, which was then placed on a mascara film on the forearm for 10 seconds. The mascara film was then wiped once. Panelists evaluated the makeup removal performance on a scale of 1 (very poor) to 5 (excellent), and the grade scores were averaged.

[0200] The results are shown in Table 1.

[0201] (overview) Example 1 shows that the use of a combination of triethyl citrate and isohexadecane in an amount of 6% by weight or more, based on the total weight of the composition according to Example 1, can provide good makeup removal efficacy without unpleasant stickiness, etc. The two-phase composition according to Example 1 could be converted into a single-phase composition when in use and could revert to a two-phase composition when not in use.

[0202] Example 2 shows that the use of a combination of higher amounts of triethyl citrate and isohexadecane can also provide good makeup removal efficacy without the unpleasant feeling of stickiness, etc. The two-phase composition according to Example 2 could be converted into a single-phase composition when in use and could revert to a two-phase composition when not in use.

[0203] Comparative Example 1 shows that when the amount of isohexadecane is less than 6% by weight relative to the total weight of the composition according to Comparative Example 1, the makeup removal efficacy deteriorates and stickiness is caused.

[0204] Comparative Example 2 shows that without isohexadecane, the makeup removal efficacy was worse and stickiness was caused.

[0205] Comparative Example 3 shows that without triethyl citrate, the makeup removal efficacy was worse and stickiness was caused.

Claims

1. (a) an oil phase comprising at least one volatile hydrocarbon oil; (b) triethyl citrate and (c) an aqueous phase comprising water; A cleansing cosmetic two-phase composition comprising: The (a) volatile hydrocarbon oil is a volatile branched C8 to C16 hydrocarbon oil; A cleansing cosmetic two-phase composition, wherein the amount of (a) the volatile hydrocarbon oil in the composition is 6% by mass or more, based on the total mass of the composition.

2. 10. The composition of claim 1, which is convertible to a single-phase composition.

3. 3. The composition of claim 2, wherein the single-phase composition is capable of being converted into a two-phase composition.

4. 4. The composition of claim 1, wherein the (a) volatile hydrocarbon oil is selected from the group consisting of isohexadecane, isodecane, isododecane, and mixtures thereof.

5. The composition according to any one of claims 1 to 4, wherein the amount of the (a) volatile hydrocarbon oil in the composition is 6% by weight to 50% by weight, relative to the total weight of the composition.

6. The composition according to any one of claims 1 to 5, wherein the amount of (b) triethyl citrate in the composition is 0.1% by mass to 10% by mass, relative to the total mass of the composition.

7. The composition according to any one of claims 1 to 6, wherein the amount of (c) water in the composition is 30% by mass to 93% by mass, based on the total mass of the composition.

8. 8. The composition of claim 1, further comprising: (a) at least one non-volatile oil that is not a volatile hydrocarbon oil.

9. 9. The composition according to claim 1, further comprising a polar oil in an amount of from 0.01% to 20% by weight, relative to the total weight of the composition.

10. 10. The composition according to claim 1, wherein the amount of the oily phase in the composition is from 7% to 70% by weight relative to the total weight of the composition.

11. 11. The composition according to claim 1, wherein the amount of the aqueous phase in the composition is from 30% to 93% by weight relative to the total weight of the composition.

12. 12. The composition according to claim 1, which is a cleansing cosmetic composition for the skin and eyelashes.

13. A cosmetic method for keratinous materials, comprising: mixing the composition of any one of claims 1 to 12 to form a single-phase composition; applying said single-phase composition onto keratinous materials; Beauty methods, including:

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