Two-phase composition

Abstract

To provide a two-phase composition which is stable and can be converted into a single phase composition when mixed in which the single phase composition can provide good cosmetic effect such as good makeup removability without giving an unpleasant feeling and can be returned to a two-phase composition having a clean interface between two reformed phases.SOLUTION: There is provided a two-pase composition comprising (a) an oily phase containing at least one oil and an aqueous phase containing (b) at least one aromatic ketone compound represented by the formula (I), (c) at least one polyglyceryl fatty acid ester and (d) water. 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 giving an unpleasant feeling. The single phase composition can be returned to a two-phase composition having a clean interface between two reformed phases.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a two-phase or bi-phase composition having two visibly distinct phases and capable of being converted into a single-phase composition which can be converted back into a two-phase or bi-phase composition. [Background technology]

[0002] Compositions having two visibly distinct phases, in particular an aqueous phase and an oily phase that are not emulsified within each other at rest, are commonly referred to as "two-phase" or "bi-phase" compositions. They differ from emulsions by the fact that at rest, the two phases are separate and form a single interface between the two phases, instead of the multiple interfaces between the continuous phase and each discontinuous phase present in an emulsion.

[0003] Such two-phase compositions have already been described, for example, in EP-A-370 856 and EP-A-603 080, in particular for removing make-up from the eye area.

[0004] The two-phase composition is preferably stable such that prior to use, i.e. at rest, the appearance and / or odor of the composition may remain unchanged over time under a variety of temperature and storage conditions.

[0005] In use, the two-phase composition requires mixing, such as shaking, to form a single-phase composition, such as a "temporary" emulsion, which is then applied to a keratinous material, such as the skin. This single-phase composition is required to provide the targeted cosmetic benefit, such as good make-up removal ability. It is preferred that the single-phase composition be able to provide the cosmetic benefit without causing discomfort.

[0006] On the other hand, after use, i.e. under resting conditions, the single-phase composition must return to its initial state by transformation into a two-phase composition, known as "phase separation". The interface between the reformed two phases is preferably clean, with no precipitate present at the interface.

[0007] Thus, there is a need for a two-phase or bi-phase composition having two visibly distinct phases that is stable when unmixed and can be converted to a single-phase composition upon mixing, where the single-phase composition can provide good cosmetic benefits, such as good make-up removal ability, without discomfort, and can return to its initial state, i.e., a two-phase or bi-phase composition having a clean interface between the two reformed phases. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] EP-A-370 856 [Patent Document 2] EP-A-603 080 [Non-patent literature]

[0009] [Non-Patent Document 1] Walter Noll, Chemistry and Technology of Silicones (1968), Academic Press [Non-Patent Document 2] Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics Summary of the Invention [Problem to be solved by the invention]

[0010] It is an object of the present invention to provide a two-phase composition that is stable and can be converted upon mixing into a single-phase composition, which can provide good cosmetic benefits, such as good make-up removal ability, without discomfort, and can be converted back into a two-phase composition having a clean interface between the two reformed phases. [Means for solving the problem]

[0011] The above objectives are: (a) an oily phase comprising at least one oil; and, (b) at least one aromatic ketone compound represented by the following chemical formula (I):

[0012] [ka]

[0013] (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 to C6 alkyl group or an aryl group; (c) at least one polyglyceryl fatty acid ester, and (d) water an aqueous phase comprising This can be achieved by a two-phase composition comprising:

[0014] The composition according to the invention can be converted into a single-phase composition. The single-phase composition can be converted into a two-phase composition.

[0015] The (a) oil may be selected from non-polar oils, preferably from the group consisting of hydrocarbon oils, ether oils, and mixtures thereof, more preferably from the group consisting of volatile hydrocarbon oils, ether oils, and mixtures thereof.

[0016] The amount of (a) oil in the composition according to the present invention may be from 7% by mass to 70% by mass, preferably from 15% by mass to 65% by mass, based on the total mass of the composition.

[0017] R in formula (I) may represent a methyl group, an ethyl group, or a phenyl group, preferably a methyl group or a phenyl group, more preferably a methyl group.

[0018] (b) The aromatic ketone compound may be a hydroxyacetophenone, preferably a monohydroxyacetophenone, more preferably 4-hydroxyacetophenone.

[0019] The amount of the (b) aromatic ketone compound in the composition according to the present invention may be from 0.1% by mass to 3% by mass, preferably from 0.2% by mass to 1% by mass, and more preferably from 0.3% by mass to 0.5% by mass, relative to the total mass of the aqueous phase of the composition.

[0020] (c) The polyglyceryl fatty acid ester may be selected from polyglyceryl fatty acid diesters.

[0021] (c) The polyglyceryl fatty acid ester may contain 2 to 6 polyglyceryl units, preferably 4 to 6 polyglyceryl units, and more preferably 5 or 6 polyglyceryl units.

[0022] (c) The polyglyceryl fatty acid ester may be selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 distearate, and mixtures thereof.

[0023] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be from 0.001% by mass to 0.5% by mass, preferably from 0.005% by mass to 0.1% by mass, and more preferably from 0.01% by mass to 0.05% by mass, relative to the total mass of the aqueous phase of the composition.

[0024] The amount of (d) 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.

[0025] 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.

[0026] The present invention also relates to a cosmetic method for keratinous materials, comprising the steps of: mixing a composition according to the present invention to form a single-phase composition; and applying the single-phase composition to keratinous materials. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] After extensive investigation, the inventors have discovered that it is possible to provide a two-phase composition that is stable and can be converted into a single-phase composition upon mixing in use, where the single-phase composition can provide good cosmetic benefits, such as good make-up removal ability, without discomfort, and that can revert back to a two-phase composition having a clean interface between the two reformed phases when not in use.

[0028] Thus, one aspect of the present invention is a method for producing a medicament comprising the steps of: (a) an oily phase comprising at least one oil; and, (b) at least one aromatic ketone compound represented by the following chemical formula (I):

[0029] [ka]

[0030] (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 to C6 alkyl group or an aryl group; (c) at least one polyglyceryl fatty acid ester, and (d) water an aqueous phase comprising The present invention relates to a two-phase composition comprising:

[0031] The composition according to the present invention has two visually distinct phases when not mixed.However, when the composition according to the present invention is mixed, it can be converted into a single-phase composition.Single-phase compositions such as emulsions can provide good cosmetic effects such as good makeup removal without causing discomfort.Single-phase compositions can return to a two-phase composition with a clean interface between two reformed phases.

[0032] The compositions according to the present invention are stable so that the oily and aqueous phases can be kept separate when not mixed, and thus the two-phase or bi-phase appearance of the compositions according to the present invention can be maintained during storage of the compositions according to the present invention.

[0033] In particular, the composition according to the present invention is stable so that the appearance and / or smell of the composition can remain unchanged for a long time under various temperature and storage conditions.For example, the composition according to the present invention is stable at low temperatures, with or without shaking.Accordingly, the composition according to the present invention can be appropriately stored, especially at low temperatures, even during transportation by car, which may cause vibrations, etc.

[0034] When used, the composition according to the present invention is mixed. The two phases in the composition according to the present invention are an oily phase that contains at least one oil and an aqueous phase that contains water. Therefore, when the composition according to the present invention is mixed, one of the two phases can be dispersed in the other phase to form an O / W or W / O composition, such as an O / W or W / O emulsion that is visually uniform or forms a single phase.

[0035] The mixing of the composition according to the present invention can be easily carried out. For example, the mixing of the composition according to the present invention can be carried out by shaking by hand. After mixing the composition according to the present invention, the composition forms a single phase and can be maintained for a certain period of time without mixing again.

[0036] 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 ability. 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.

[0037] 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 also reduce skin desquamation. Skin desquamation reflects a relatively large loss of the outer layer of the epidermis of the skin, which can lead to a rough texture of the skin's surface. Thus, the composition according to the present invention can provide a smooth skin finish.

[0038] Furthermore, the single-phase composition formed by the two-phase composition according to the present invention may be more comfortable, e.g., less irritating, and thus the composition according to the present invention may be, for example, gentler on the skin, especially on sensitive skin such as the skin around the eyes.

[0039] If a two-phase composition according to the present invention prior to mixing is transparent, the single-phase composition formed by mixing the two-phase composition may also be transparent.

[0040] The single-phase composition formed by the two-phase composition according to the present invention can quickly revert back to a two-phase composition after a certain period of time by undergoing phase separation to reform again two visually distinct phases. According to the present invention, the interface between the two reformed phases can be clean such that there is no precipitate at the interface.

[0041] The compositions according to the invention are especially useful as make-up removers, preferably make-up removers for keratin fibres, more preferably make-up removers for the eyelashes, ie for mascara.

[0042] The composition according to the present invention will now be described in detail.

[0043] [Composition] (oil) The composition according to the invention comprises (a) at least one oil. When two or more oils are used, they may be the same or different.

[0044] The (a) oil forms the oily phase of the composition according to the invention.

[0045] In this specification, "oil" means a fatty compound or substance in the form of a liquid or paste (non-solid) at atmospheric pressure (760 mmHg) and at room temperature (25°C). As oils, those commonly used in cosmetics can be used, alone or in combination. These oils can be volatile or non-volatile.

[0046] The oil may be a non-polar oil, such as a hydrocarbon oil and a symmetric ether oil, a silicone oil, a polar oil, such as a vegetable oil or an animal oil, and an ester oil and an asymmetric ether oil, or a mixture thereof.

[0047] The oil may be selected from the group consisting of oils of vegetable or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

[0048] Examples of vegetable oils include, for example, meadowfoam oil, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0049] Examples of animal oils include, for example, squalene and squalane.

[0050] Examples of synthetic oils include alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0051] An example of an ethereal oil is dicaprylyl ether.

[0052] The ester oil is preferably a saturated or unsaturated, linear or branched C1-C 26 Aliphatic mono- or polyacids and saturated or unsaturated linear or branched C1-C 26 They are liquid esters with aliphatic monohydric alcohols or polyhydric alcohols, and the total number of carbon atoms in these esters is 10 or more.

[0053] Preferably, in the case of esters of monohydric alcohols, at least one of the alcohols and acids from which the esters of the invention are derived is branched.

[0054] Among the monoesters of monoacids and monohydric alcohols, mention may be made of ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

[0055] C4~C 22 Dicarboxylic or tricarboxylic acids and C1-C 22 Esters with alcohols, and mono-, di- or tricarboxylic acids and non-sugar C4-C 26 Esters with dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols can also be used.

[0056] Mention may in particular be made of the following: diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate.

[0057] As ester oil, C6-C 30 , preferably C 12 ~C 22 Sugar esters and diesters of fatty acids can be used. It is recalled that the term "sugar" means an oxygen-bearing hydrocarbon-based compound containing several alcohol functional groups, with or without aldehyde or ketone functional groups, and containing at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

[0058] Examples of suitable sugars that may be mentioned are sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, as well as derivatives thereof, in particular alkyl derivatives, such as methyl derivatives, for example methylglucose.

[0059] Sugar esters of fatty acids are made by combining the aforementioned sugars with linear or branched, saturated or unsaturated C6-C 30 , preferably C 12 ~C 22 These compounds, when unsaturated, can have from 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

[0060] The esters according to this variant can also be chosen from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0061] These esters may be, for example, oleate, laurate, palmitate, myristic acid, behenic acid, coconut acid, stearate, linoleate, linolenic acid, capric acid and arachidic acid esters, or mixtures thereof, such as the mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, among others, and pentaerythrityl tetraethylhexanoate.

[0062] More particularly, mono- and diesters are used, in particular the mono- or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate and oleostearate of sucrose, glucose or methylglucose.

[0063] An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0064] Examples of preferred ester oils include diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate / 2-ethylhexyl caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, carbon black, and the like. Examples of suitable oleic acid salts include dicaprylyl acetate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0065] Examples of artificial triglycerides include caprylcaprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, capric / caprylic triglyceride (INCI name: caprylic / capric triglyceride) and capric / caprylic / linolenic triglyceride.

[0066] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane (INCI name: dimethicone), methylphenylpolysiloxane, methylhydrogenpolysiloxane, etc., cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and mixtures thereof.

[0067] Preferably, the silicone oil is chosen from polydialkylsiloxane liquids, in particular polydimethylsiloxane (PDMS) liquids, and polyorganosiloxane liquids containing at least one aryl group.

[0068] These silicone oils may also be organically modified. The organically modified silicones that may be used according to the invention are silicone oils as defined above and which contain in their structure one or more organic functional groups which are linked via a hydrocarbon-based group.

[0069] Organopolysiloxanes are more fully defined in Walter Noll, Chemistry and Technology of Silicones (1968), Academic Press. They may be volatile or nonvolatile.

[0070] If they are volatile, the silicones are more particularly chosen from those having a boiling point between 60° C. and 260° C., and even more particularly chosen from: (i) cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms. These are, for example, octamethylcyclotetrasiloxane, sold in particular under the name Volatile Silicone® 7207 by Union Carbide or under the name Silbione® 70045 V2 by Rhodia, decamethylcyclopentasiloxane, sold under the name Volatile Silicone® 7158 by Union Carbide, sold under the name Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane, sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Mention may also be made of cyclocopolymers of the type dimethylsiloxane / methylalkylsiloxane, such as, for example, Silicone Volatile® FZ 3109, sold by Union Carbide, of the following formula:

[0071] [ka]

[0072] Mixtures of cyclic polydialkylsiloxanes and organosilicon compounds, such as a 50 / 50 mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol, and a mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis(2,2,2',2',3,3'-hexatrimethylsilyloxy)neopentane, and (ii) Contains 2 to 9 silicon atoms and has a density of 5 × 10 at 25 °C -6 m 2Mention may also be made of linear volatile polydialkylsiloxanes with a viscosity of less than 10 ...

[0073] Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from polydialkylsiloxanes, among which mention may be made mainly of polydimethylsiloxanes containing trimethylsilyl end groups.

[0074] Among these polydialkylsiloxanes, mention may be made, but is not limited to, the following commercial products: the Silbione® oils of the 47 and 70 047 series or Mirasil® oils sold by the company Rhodia, such as for example the 70 047 V 500 000 oil; the Mirasil® series of oils sold by the company Rhodia; - Dow Corning 200 series oils, e.g. 60000mm viscosity 2 / s DC 200, and - Viscasil® oils from General Electric and certain oils from the SF series from General Electric (SF 96, SF 18).

[0075] Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups, known under the name dimethiconol (CTFA), such as the 48 series oils from Rhodia.

[0076] Among the silicones containing aryl groups, mention may be made of the polydiarylsiloxanes, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes, such as phenylsilicone oils.

[0077] The phenylsilicone oil may be chosen from the phenylsilicones of the following formula:

[0078] [ka]

[0079] (In the formula, R1~R 10 are each independently a saturated or unsaturated, linear, cyclic or branched C1-C 30 Hydrocarbon group, preferably C1-C 12 a hydrocarbon group, more preferably a C1 to C6 hydrocarbon group, specifically a methyl, ethyl, propyl or butyl group; m, n, p and q are each independently an integer between 0 and 900, inclusive, preferably between 0 and 500, inclusive, more preferably between 0 and 100, inclusive; However, the sum of n+m+q is not 0.

[0080] Examples that may be mentioned are products sold under the following names: - Rhodia Silbione® oils, series 70 641; Rhodorsil® 70 633 and 763 series oils from Rhodia, - Dow Corning 556 Cosmetic Grade Fluid oil, - PK series silicones from Bayer, e.g. PK20 product, - Certain oils of the SF series manufactured by General Electric, such as SF 1023, SF 1154, SF 1250 and SF 1265.

[0081] As the phenyl silicone oil, phenyl trimethicone (R1 to R2 in the above formula) 10 is methyl, p, q, and n=0, m=1).

[0082] The organically modified liquid silicones may in particular contain polyethyleneoxy and / or polypropyleneoxy groups. Mention may therefore be made of the silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd., and the oils Silwet® L722 and L77 from Union Carbide.

[0083] The hydrocarbon oil may be selected from: - Linear or branched, optionally cyclic, C6-C 16 Lower alkanes. Examples that may be mentioned are hexane, undecane, dodecane, tridecane, and isoparaffins, such as isohexadecane, isododecane and isodecane; and Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecenes and hydrogenated polyisobutenes, such as Parleam®, and squalane.

[0084] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oils (e.g., liquid paraffin), paraffin, petrolatum or petrolatum, naphthalene, etc.; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymers; and mixtures thereof.

[0085] The term "fatty" in fatty alcohol means to include a relatively large number of carbon atoms. Thus, alcohols having 4 or more, preferably 6 or more, more preferably 12 or more carbon atoms are included in the scope of fatty alcohol. Fatty alcohols may be saturated or unsaturated. Fatty alcohols may be linear or branched.

[0086] The fatty alcohol may have the structure R-OH, where R is selected from saturated and unsaturated, linear and branched groups containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms. In at least one embodiment, R is selected from C 12 ~C 20 Alkyl group and C 12 ~C 20 alkenyl groups, R may be substituted or unsubstituted with at least one hydroxyl group.

[0087] Examples of fatty alcohols include lauryl alcohol, isostearyl alcohol, undecylenyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, and mixtures thereof.

[0088] Therefore, fatty alcohols are linear or branched, saturated or unsaturated, C6-C 30 Alcohols, preferably linear or branched, saturated C6-C 30 Alcohols, more preferably linear or branched, saturated C 12 ~C 20 The alcohol may be selected from the group consisting of alcohols.

[0089] Here, the term "saturated fatty alcohol" refers to an alcohol having a long aliphatic saturated carbon chain. A saturated fatty alcohol is any linear or branched saturated C6-C 30 It is preferably selected from linear or branched saturated C6-C fatty alcohols. 30 Among fatty alcohols, linear or branched saturated C 12 ~C 20 Fatty alcohols may preferably be used. Any linear or branched saturated C 16 ~C 20 Fatty alcohols are more preferably used. 16 ~C 20 Fatty alcohols may even more preferably be used.

[0090] Examples of saturated fatty alcohols include lauryl alcohol, isostearyl alcohol, undecylenyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, octyldodecanol and hexyldecanol can be used as the saturated fatty alcohol.

[0091] According to at least one embodiment, the fatty alcohol used in the composition according to the invention is preferably chosen from octyldodecanol, hexyldecanol and mixtures thereof.

[0092] The (a) oil may be selected from non-polar oils, preferably from the group consisting of hydrocarbon oils, ether oils, and mixtures thereof, more preferably from the group consisting of volatile hydrocarbon oils, ether oils, and mixtures thereof.

[0093] Volatile hydrocarbon oils are volatile branched C8-C 16 It may be selected from hydrocarbon oils, preferably selected from the group consisting of isohexadecane, isodecane, isododecane, and mixtures thereof.

[0094] The ether oil is preferably non-volatile. The ether oil may be selected from dialkyl ethers represented by the formula: R 1 -OR 2 (In the formula, R 1 and R 2 Each of the is independently 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.) R 1 and R 2 It may be preferable that

[0095] Examples of the linear alkyl group include a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a nonadecyl group, an eicosyl group, a behenyl group, a docosyl group, a tricosyl group, and a tetracosyl group.

[0096] Branched alkyl groups include 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-pentylnonyl, 2-hexyl, and 2-hexyl groups. Examples of such alkyl groups include xyldecyl, 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.

[0097] Examples of the cyclic alkyl group include a cyclohexyl group, a 3-methylcyclohexyl group, and a 3,3,5-trimethylcyclohexyl group.

[0098] 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.

[0099] 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.

[0100] The amount of (a) oil in the composition according to the invention may be at least 7% by weight, preferably at least 15% by weight, relative to the total weight of the composition.

[0101] The amount of (a) oil in the composition according to the present invention may be 70% by weight or less, preferably 65% ​​by weight or less, based on the total weight of the composition, with the proviso that the amount of (a) oil is not 0.

[0102] The amount of (a) oil in the composition according to the present invention may be from 7% by mass to 70% by mass, preferably from 15% by mass to 65% by mass, based on the total mass of the composition.

[0103] (Aromatic ketone compounds) The composition according to the present invention comprises (b) at least one aromatic ketone compound. When two or more (b) aromatic ketone compounds are used, they may be the same or different.

[0104] (b) The aromatic ketone compound is represented by the following chemical formula (I):

[0105] [ka]

[0106] (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 to C6 alkyl group or an aryl group.

[0107] Examples of C1-C6 alkyl groups include methyl, ethyl and propyl groups, with the methyl group being preferred.

[0108] Examples of C1-C6 alkoxy groups include methoxy, ethoxy and propoxy groups, with methoxy being preferred.

[0109] Examples of the aryl group include a phenyl group, a substituted phenyl group, a naphthyl group, and a substituted naphthyl group. Examples of the substituent include a hydroxyl group and a C1 to C6 alkyl group (such as a methyl group). A phenyl group is preferred.

[0110] It is preferred that R in the above 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.

[0111] (b) 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:

[0112] (b) The aromatic ketone compound is preferably hydroxyacetophenone, more preferably monohydroxyacetophenone, and even more preferably 4-hydroxyacetophenone.

[0113] The amount of (b) the aromatic ketone compound in the composition according to the present invention may be 0.1% by weight or more, preferably 0.2% by weight or more, more preferably 0.3% by weight or more, based on the total weight of the aqueous phase of the composition.

[0114] The amount of the (b) aromatic ketone compound in the composition according to the present invention may be 3 mass % or less, preferably 1 mass % or less, more preferably 0.5 mass % or less, relative to the total mass of the aqueous phase of the composition, with the proviso that the amount of the (b) aromatic ketone compound is not 0.

[0115] The amount of the (b) aromatic ketone compound in the composition according to the present invention may be from 0.1% by mass to 3% by mass, preferably from 0.2% by mass to 1% by mass, and more preferably from 0.3% by mass to 0.5% by mass, relative to the total mass of the aqueous phase of the composition.

[0116] The amount of the (b) aromatic ketone compound in the composition according to the present invention may be 0.01 mass % or more, preferably 0.05 mass % or more, and more preferably 0.1 mass % or more, based on the total mass of the composition.

[0117] The amount of the (b) aromatic ketone compound in the composition according to the present invention may be 5 mass% or less, preferably 3 mass% or less, and more preferably 1 mass% or less, relative to the total mass of the composition, with the proviso that the amount of the (b) aromatic ketone compound is not 0.

[0118] The amount of the aromatic ketone compound (b) in the composition according to the present invention may be 0.01 mass % to 5 mass %, preferably 0.05 mass % to 3 mass %, and more preferably 0.1 mass % to 1 mass %, relative to the total mass of the composition.

[0119] (Polyglyceryl fatty acid ester) The composition according to the present invention comprises (c) at least one polyglyceryl fatty acid ester. When two or more (c) polyglyceryl fatty acid esters are used, they may be the same or different.

[0120] (c) 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.

[0121] It is preferred that the (c) 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 (c) 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.

[0122] In the composition according to the present invention, the polyglyceryl fatty acid ester (c) is present in the aqueous phase, and therefore is relatively hydrophilic.

[0123] Therefore, the (c) polyglyceryl fatty acid ester may have an HLB (hydrophilic-lipophilic balance) value of 8.0 or more, preferably 9.0 or more, 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.

[0124] The term HLB ("hydrophilic-lipophilic balance") is well known to those skilled in the art and reflects the ratio of hydrophilic to lipophilic moieties in a molecule. The HLB value can be calculated using the formula HLB=20*(1-S / A), where S is the saponification value of the ester and A is the neutralization value of the fatty acid.

[0125] (c) The polyglyceryl fatty acid ester can be selected from polyglyceryl fatty acid monoesters.

[0126] The polyglyceryl fatty acid monoester may have an HLB value of 8.0 to 17.0, preferably 9.0 to 16.0, more preferably 10.0 to 15.0. When two or more polyglyceryl fatty acid monoesters are used, the HLB value is determined by the weight average of the HLB values ​​of all the polyglyceryl fatty acid monoesters.

[0127] 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.

[0128] (c) The polyglyceryl fatty acid ester is preferably selected from polyglyceryl fatty acid diesters.

[0129] The polyglyceryl fatty acid diester may have an HLB value of 8.0 to 13.0, preferably 9.0 to 12.0, more preferably 10.0 to 11.0. When two or more polyglyceryl fatty acid diesters are used, the HLB value is determined by the weight average of the HLB values ​​of all the polyglyceryl fatty acid diesters.

[0130] 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.

[0131] As the PG6 dicaprate, for example, Sunsoft Q-102H-C available from Taiyo Kagaku Co., Ltd. can be used. As the PG6 dioleate, Sunsoft Q-172H-C available from Taiyo Kagaku Co., Ltd. can be used. As the PG6 distearate, Emalex DSG-6 available from Nippon Emulsion Co., Ltd. can be used.

[0132] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 0.001% by weight or more, preferably 0.005% by weight or more, more preferably 0.01% by weight or more, relative to the total weight of the aqueous phase of the composition.

[0133] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 0.5% by weight or less, preferably 0.1% by weight or less, more preferably 0.05% by weight or less, relative to the total weight of the aqueous phase of the composition, with the proviso that the amount of (c) polyglyceryl fatty acid ester is not 0.

[0134] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be from 0.001% by mass to 0.5% by mass, preferably from 0.005% by mass to 0.1% by mass, and more preferably from 0.01% by mass to 0.05% by mass, relative to the total mass of the aqueous phase of the composition.

[0135] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 0.0001% by mass or more, preferably 0.0005% by mass or more, more preferably 0.001% by mass or more, based on the total mass of the composition.

[0136] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 1% by mass or less, preferably 0.5% by mass or less, more preferably 0.1% by mass or less, relative to the total mass of the composition, with the proviso that the amount of (c) polyglyceryl fatty acid ester is not 0.

[0137] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 0.0001% by mass to 1% by mass, preferably 0.0005% by mass to 0.5% by mass, and more preferably 0.001% by mass to 0.1% by mass, relative to the total mass of the composition.

[0138] (water) The composition according to the present invention comprises (d) water.

[0139] (d) Water may form the aqueous phase of the composition according to the present invention.

[0140] The amount of (d) water in the composition according to the present invention may be 30% by weight or more, preferably 35% by weight or more, based on the total weight of the composition.

[0141] The amount of (d) 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 (d) water is not 0.

[0142] The amount of (d) 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.

[0143] (Citrate ester) The composition according to the invention may comprise (e) at least one citric acid ester. When two or more citric acid esters are used, they may be the same or different.

[0144] (e) Citrate esters can be represented by the following chemical formula (I):

[0145] [ka]

[0146] (In the formula, R1, R2 and R3 are independently a hydrogen atom, a saturated or unsaturated linear or branched C1-C 30Hydrocarbon 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, and 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.

[0147] R1, R2 and R3 are all 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.

[0148] R4 is preferably 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), more preferably a hydrogen atom or an R'4-CO- group (wherein R'4 represents a linear or branched C1 to C8 alkyl group), and even more preferably a hydrogen atom or an R'4-CO- group (wherein R'4 represents a methyl group).

[0149] (e) It may be preferred that the citrate ester 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, even more preferably from the group consisting of ethyl citrate.

[0150] The amount of the (e) citrate ester in the composition according to the present invention may be 0.1 mass % or more, preferably 0.5 mass % or more, and more preferably 1 mass % or more, relative to the total mass of the composition.

[0151] The amount of (e) citrate ester in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less, relative to the total mass of the composition, provided that the amount of (b) citrate ester is not 0.

[0152] The amount of the (e) citric acid ester in the composition according to the present invention can be 0.1 to 15% by mass, preferably 0.5 to 10% by mass, and more preferably 1 to 5% by mass, relative to the total mass of the composition.

[0153] (beauty active ingredient) The composition according to the present invention may comprise at least one cosmetic active ingredient. A single type of cosmetic active ingredient may be used, but two or more different types of cosmetic active ingredients may also be used in combination.

[0154] The cosmetic active ingredient may preferably be water-insoluble or oil-insoluble.

[0155] The amount of cosmetic active ingredient in the composition according to the invention may be at least 0.1% by weight, preferably at least 0.5% by weight, more preferably at least 1% by weight, relative to the total weight of the composition.

[0156] The amount of cosmetic active ingredient in the composition according to the present invention may be 30% by weight or less, preferably 25% by weight or less, more preferably 20% by weight or less, relative to the total weight of the composition, provided that the amount of cosmetic active ingredient is not 0.

[0157] The amount of the cosmetically active ingredient in the composition according to the present invention may be in the range of 0.1% to 30% by mass, preferably 0.5% to 25% by mass, more preferably 1% to 20% by mass, relative to the total mass of the composition.

[0158] (Surfactant) The composition according to the invention may comprise at least one additional surfactant different from (c) the polyglyceryl fatty acid ester. When two or more additional surfactants are used, they may be the same or different.

[0159] However, small amounts of additional surfactant may be preferred.

[0160] 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.

[0161] (Other ingredients) The compositions according to the present invention may also include at least one optional or additional ingredient.

[0162] 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.

[0163] 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; opacifying agents; dyes; vitamins or provitamins; fragrances; preservatives, co-preservatives, stabilizers; and mixtures thereof.

[0164] The compositions according to the invention may comprise one or more 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.

[0165] 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.

[0166] The pH of the composition according to the present invention can be controlled. The pH may be, for example, from 3 to 11, preferably from 3.5 to 9, more preferably from 4 to 7. The pH can be adjusted to the desired value using at least one acidifying agent and / or at least one basifying agent.

[0167] The acidifying agent may 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.

[0168] The basifying agent may be, for example, ammonium hydroxide, alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal carbonates, alkanolamines such as mono-, di-, and triethanolamine, as well as derivatives thereof, preferably sodium hydroxide or potassium hydroxide, and compounds of the formula:

[0169] [ka]

[0170] (In the formula, R represents an alkylene, such as propylene, optionally substituted with hydroxyl or a C1-C4 alkyl group, and 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.

[0171] 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.

[0172] (form) The composition according to the invention may have two visually distinct phases, one of which is an oily phase and the other of which is an aqueous phase.

[0173] The amount of oily phase in the composition according to the invention may be greater than or equal to 20% by weight, preferably greater than or equal to 30% by weight, more preferably greater than or equal to 40% by weight relative to the total weight of the composition.

[0174] The amount of oily phase in the composition according to the invention may be up to 80% by weight, preferably up to 70% by weight, more preferably up to 60% by weight, relative to the total weight of the composition, provided that the amount of oily phase is not zero.

[0175] The amount of oily phase in the composition according to the present invention may be from 20% to 80% by mass, preferably from 30% to 70% by mass, more preferably from 40% to 60% by mass, relative to the total mass of the composition.

[0176] The oily phase comprises (a) at least one oil as described above.

[0177] The amount of (a) at least one oil in the oily phase may be 85% by weight or more, preferably 90% by weight or more, more preferably 95% by weight or more, relative to the total weight of the oily phase.

[0178] The amount of aqueous phase in the composition according to the invention may be greater than or equal to 20% by weight, preferably greater than or equal to 30% by weight, more preferably greater than or equal to 40% by weight relative to the total weight of the composition.

[0179] The amount of aqueous phase in the composition according to the invention may be up to 80% by weight, preferably up to 70% by weight, more preferably up to 60% by weight, relative to the total weight of the composition, provided that the amount of oily phase is not zero.

[0180] The amount of aqueous phase in the composition according to the present invention may be from 20% to 80% by weight, preferably from 30% to 70% by weight, more preferably from 40% to 60% by weight, relative to the total weight of the composition.

[0181] The aqueous phase comprises (b) at least one aromatic ketone compound, (c) at least one polyglyceryl fatty acid ester, and (d) water.

[0182] The amount of (d) water in the aqueous phase can be 85% by weight or more, preferably 90% by weight or more, and more preferably 95% by weight or more, based on the total weight of the aqueous phase.

[0183] In addition, the aqueous phase may include at least one additional hydrophilic component. In one embodiment, the aqueous phase may include at least one pH adjuster, such as an acid and a base, and / or at least one organic solvent, such as a diol.

[0184] The composition according to the invention can be converted into a single-phase composition upon mixing. After mixing, the composition according to the invention may be in the form of an O / W or W / O type, preferably an O / W or W / O liquid composition, more preferably an O / W or W / O emulsion.

[0185] In the composition according to the invention, when the specific gravity of the oily phase is less than that of the aqueous phase, the oily phase resides above the aqueous phase. Typically, at rest, the oily phase resides above the aqueous phase, since the specific gravity of oil tends to be less than that of water.

[0186] [Preparation] The composition according to the present invention can be prepared by combining the oily phase and the aqueous phase, forming an oily phase by providing (a) an oil or by mixing ingredients containing (a) an oil, for the oily phase, and forming an aqueous phase by mixing ingredients containing (b) an aromatic ketone compound, (c) a polyglyceryl fatty acid ester, and (d) water, for the aqueous phase.

[0187] For example, the composition according to the present invention comprises: (i) (a) at least one oil; providing or mixing at least one optional ingredient to form an oily phase; (ii) (b) at least one aromatic ketone compound; (c) at least one polyglyceryl fatty acid ester, and (d) water, and mixing with at least one optional ingredient to form an aqueous phase; (iii) combining the oily phase and the aqueous phase; It can be prepared by a method comprising:

[0188] The mixing step can be carried out by any conventional means.

[0189] The step of combining the oily phase and the aqueous phase is preferably carried out gently, such as by slowly pouring the oily phase and the aqueous phase into a vessel such as a container.

[0190] [Use and Method] When using the composition according to the present invention, it is mixed, for example, by shaking with hands. After mixing the composition according to the present invention, the composition can form a single-phase composition. The single-phase composition can be applied to keratinous materials to achieve the targeted cosmetic effect.

[0191] The keratin material may be the skin, the nails, mucous membranes such as the lips, or keratin fibres such as the eyebrows and eyelashes.

[0192] The composition according to the present invention can be preferably used as a cosmetic composition, more preferably as a cleansing cosmetic composition, even more preferably as a cleansing cosmetic composition for the skin and eyelashes.

[0193] Compositions according to the present invention can provide cosmetic benefits, such as makeup removal.

[0194] The composition according to the present invention may also provide a good texture, such as a smooth feel, and therefore a smooth skin finish.

[0195] The compositions according to the invention are non-irritating and therefore comfortable and gentle on the skin, especially sensitive skin such as the skin around the eyes.

[0196] Skin in this context includes the skin of the face, the skin of the neck and the scalp. The composition according to the invention can also be used on mucous membranes such as the lips.

[0197] The compositions according to the invention can be used as is (as a topical product) or by impregnating them into a porous substrate such as a nonwoven fabric preferably made from cellulosic fibers such as cotton.

[0198] In particular, the composition according to the invention may be intended for application on keratinous materials such as the skin, lips, eyebrows and eyelashes, etc. The composition according to the invention can therefore be used in a cosmetic method for keratinous materials such as the skin, lips, eyebrows and eyelashes, preferably the skin and eyelashes.

[0199] The composition according to the invention can be used for caring for or cleansing keratinous materials, but not for making up. The composition according to the invention is preferably used not in a make-up product such as a foundation, but in a skin care product such as a lotion, or in a cleansing product such as a make-up remover. Preferably, the composition according to the 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, even more preferably 0.1% by weight or less, based on the total weight of the composition according to the invention.

[0200] 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 to a keratinous material; may include:

[0201] A single-phase composition does not have two visually distinct phases. Instead, a single-phase composition has a single phase, which is typically an emulsion phase. The emulsion phase does not have to be transparent, but may be translucent or opaque.

[0202] The present invention relates to (b) at least one aromatic ketone compound, and (c) the use of at least one polyglyceryl fatty acid ester, This may relate to use in a two-phase composition comprising an aqueous phase comprising (d) water and an oily phase comprising (a) oil, in particular to stabilize the composition at low temperatures such as 4°C and / or to make the composition less irritating.

[0203] In addition, the present invention also provides a method for producing a method for the preparation of a pharmaceutical composition comprising the steps of: (b) at least one aromatic ketone compound, and (c) the use of at least one polyglyceryl fatty acid ester, It may also relate to the use in a two-phase composition comprising an aqueous phase comprising (d) water and an oily phase comprising (a) oil, in order to stabilize the composition, in particular at low temperatures such as 4° C., such that no precipitate is present at the interface between the oily and aqueous phases which are reformed after mixing of the two-phase composition, and / or to make the composition less irritating, in particular less irritating to the skin around the eyes. EXAMPLES

[0204] The present invention will be described in a more detailed manner by examples.However, these examples should not be interpreted as limiting the scope of the present invention.The following examples are presented as non-limiting examples in the field of the present invention.

[0205] (Examples 1 to 7 and Comparative Examples 1 to 5) The following compositions according to Examples 1-7 and Comparative Examples 1-5 shown in Table 1 were prepared by mixing the components shown in Table 1 as follows. (1) The ingredients of the oil phase preparation (OP preparation in Table 1) are mixed at about 25° C. to form a homogenous mixture of the oil phase ingredients; (2) The components of the aqueous phase preparation (AP preparation in Table 1) are mixed at about 60° C. to form a homogenous mixture of the aqueous phase preparation components; (3) Pour the aqueous phase formulation ingredients, then the oily phase formulation ingredients, into a package in that order and mix them for each composition.

[0206] The mixed actual mass ratio of the oily phase preparation:aqueous phase preparation was 50:50 in Examples 1 to 6 and Comparative Examples 1 to 5, and was 15:85 in Example 7.

[0207] Please note that "hydroxyacetophenone" means 4-hydroxyacetophenone.

[0208] All component amounts shown in Table 1 are based on "weight percent" of active ingredient.

[0209] [Table 1A]

[0210] [Table 1B]

[0211] [Table 2]

[0212] [evaluation] The compositions according to Examples 1 to 7 and Comparative Examples 1 to 5 were evaluated as follows.

[0213] (Makeup removal ability) Each of the five panelists made up their eyelashes by applying a mascara product (MAYBELLINE Volum'Express Hypercurl Waterproof N 01 Black) to the eyelashes with a brush in a total of 40 strokes (each stroke dipped into a bottle containing the mascara product).

[0214] 4 mL of each composition according to Examples 1-7 and Comparative Examples 1-5 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0215] Panelists rated the make-up removal ability on a scale of 1 (very poor) to 5 (excellent) and categorized the average ratings according to the following criteria:

[0216] Excellent (5.0-4.0): No mascara residue was observed.

[0217] Good (3.9 to 3.0): Almost no mascara residue was observed.

[0218] Poor (2.9 to 2.0): Some mascara residue was observed.

[0219] Very poor (1.9 to 1.0): Mascara residue was observed.

[0220] The results are shown in Table 2.

[0221] (transparency) The transparency of each of the compositions according to Examples 1 to 7 and Comparative Examples 1 to 5 was examined immediately after preparation (before shaking).

[0222] The results are shown in Table 2.

[0223] (Transparency after shaking) The transparency of each of the compositions according to Examples 1 to 7 and Comparative Examples 1 to 5 was examined after one week of shaking at 4°C.

[0224] The results are shown in Table 2.

[0225] (Precipitates on the interface) After one week of shaking at 4° C., each of the compositions according to Examples 1-7 and Comparative Examples 1-5 was examined for the presence of precipitates on the interface between the oily and aqueous phases.

[0226] The results are shown in Table 2.

[0227] (skin desquamation) 4 mL of each composition according to Examples 1-7 and Comparative Examples 1-5 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0228] Panelists rated the severity of skin scaling on a scale of 1 (more scaling) to 5 (less scaling) and the scale scores were averaged.

[0229] The results are shown in Table 2.

[0230] (Mild eye irritation) 4 mL of each composition according to Examples 1-7 and Comparative Examples 1-5 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0231] Panelists rated the discomfort during the application on a scale of 1 (very uncomfortable) to 5 (not uncomfortable) and the rating scores were averaged.

[0232] The results are shown in Table 2.

[0233] (Demulsification speed) Each composition according to Examples 1 to 7 and Comparative Examples 1 to 5 was filled into a transparent glass bottle. The transparent bottle was vigorously shaken to form an emulsion. The transparent bottle was left to stand (in a stationary state), and the time until the emulsion completely disappeared and two visually distinguishable phases were formed was measured.

[0234] The results are shown in Table 2.

[0235] (stability) Each composition according to Examples 1 to 7 and Comparative Examples 1 to 5 was filled into a transparent glass bottle. The transparent bottle was kept for 2 months under temperature conditions of 4° C., 25° C. and 45° C. At 4° C., the bottle was kept stationary or shaken daily.

[0236] After two months, each composition was examined for clarity, color, and odor and rated according to the following criteria:

[0237] Excellent: Almost identical to when it was produced.

[0238] Good: Small changes in clarity, color and odor were observed.

[0239] Poor: Changes in clarity, color and odor were clearly observed. Either precipitation or a cloudy appearance was also clearly observed.

[0240] Very poor: Changes in clarity, color and odor were significantly observed. Either precipitation or cloudy appearance was also significantly observed.

[0241] The results are shown in Table 2.

[0242] (Smoothness) 4 mL of each composition according to Examples 1-7 and Comparative Examples 1-5 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0243] Panelists rated the smoothness on the skin after application on a scale of 1 (not very smooth=sticky) to 5 (very smooth) and the scores were averaged.

[0244] The results are shown in Table 2.

[0245] (Summary) Examples 1-7 show that the use of a combination of hydroxyacetophenone (4-hydroxyacetophenone) and polyglyceryl-6 dicaprate in the aqueous phase of a two-phase composition comprising an oily phase and an aqueous phase contributed to good stability of the two-phase composition, especially at low temperatures, and low irritation to the skin around the eyes, high make-up removal efficiency, and smooth skin finish (as well as less skin scaling) of the single-phase composition formed by the two-phase composition, and that the single-phase composition could be quickly reverted to a two-phase composition having a clean interface between the two reformed phases.

[0246] Comparative Example 1 shows that the absence of polyglyceryl-6 dicaprate deteriorated the stability at low temperatures such as 4°C and small precipitates appeared at the interface between the two reformed phases.

[0247] Comparative Examples 2 and 3 show that the absence of hydroxyacetophenone caused severe discomfort around the eyes.

[0248] Comparative Examples 4 and 5 show that using other types of surfactants instead of polyglyceryl-6 dicaprate deteriorated the stability at low temperatures such as 4° C. and caused small precipitates to appear at the interface between the two reformed phases. Comparative Examples 4 and 5 also caused discomfort around the eyes.

Claims

1. (a) an oily phase comprising at least one oil; and, (b) Hydroxyacetophenone (c) at least one polyglyceryl fatty acid ester selected from polyglyceryl fatty acid diesters, and (d) water an aqueous phase comprising 1. A two-phase composition comprising:

2. 13. 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 convertible to a two-phase composition.

4. The composition according to any one of claims 1 to 3, wherein the (a) oil is selected from non-polar oils.

5. The composition according to any one of claims 1 to 4, wherein the amount of the (a) oil in the composition is from 7% by weight to 70% by weight, based on the total weight of the composition.

6. The composition according to any one of claims 1 to 5, wherein the (b) hydroxyacetophenone is a monohydroxyacetophenone.

7. The composition according to any one of claims 1 to 6, wherein the (b) hydroxyacetophenone is 4-hydroxyacetophenone.

8. The composition according to any one of claims 1 to 7, wherein the amount of the (b) hydroxyacetophenone in the composition is from 0.1% by weight to 3% by weight, based on the total weight of the aqueous phase of the composition.

9. The composition according to any one of claims 1 to 8, wherein the (c) polyglyceryl fatty acid ester comprises 2 to 6 polyglyceryl units.

10. 10. The composition of claim 1, wherein the (c) polyglyceryl fatty acid ester is selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 distearate, and mixtures thereof.

11. The composition according to any one of claims 1 to 10, wherein the amount of the (c) polyglyceryl fatty acid ester in the composition is 0.001% by weight to 0.5% by weight, based on the total weight of the aqueous phase of the composition.

12. The composition according to any one of claims 1 to 11, wherein the amount of (d) water in the composition is 30% by mass to 93% by mass, based on the total mass of the composition.

13. 13. The composition according to claim 1, which is a cosmetic composition.

14. A composition according to any one of claims 1 to 13, which is a cleansing cosmetic composition.

15. A cosmetic method for keratinous materials, comprising: mixing the composition of any one of claims 1 to 14 to form a single-phase composition; applying said single-phase composition to said keratinous materials; Including beauty methods.

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