Two-phase composition

Abstract

To provide a stable two-phase composition that can be converted into a single-phase composition when mixed, in which the single-phase composition can exhibit favorable cosmetic effect such as favorable makeup-removing ability without giving discomfort, and can be cleanly returned to a two-phase composition.SOLUTION: A two-phase composition includes (a) an oily phase including at least one kind of oil, (b) at least one kind of aromatic ketone compound expressed by formula (I), (c) at least one kind of polyhydroxy acid or salt thereof, (d) water and (e) an aqueous phase including at least one kind of polyglyceryl fatty acid ester. The composition is stable, and has two visually distinguishable phases when not mixed. Meanwhile, the composition can be converted into a single-phase composition when mixed. A single-phase composition such as emulsion can exhibit favorable cosmetic effect such as favorable makeup-removing ability without causing discomfort. The single-phase composition can be cleanly returned to a two-phase composition.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, ie at rest, the appearance and / or odor of the composition may remain unchanged for an extended period of time.

[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".

[0007] Thus, there is a need for a stable two-phase or bi-phase composition that has two visually distinct phases when unmixed, which can be converted to a single-phase composition upon mixing, which can provide good cosmetic benefits, such as good makeup removal ability, without discomfort, and which can be cleanly returned to its initial state, i.e., a two-phase or bi-phase composition. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] EP-A-370 856 [Patent Document 2] EP-A-603 080 [Patent Document 3] US 4,131,576 [Patent Document 4] EP 503 853 [Patent Document 5] FR 2 416 723 [Patent Document 6] US 2,798,053 [Patent Document 7] US 2,923,692 [Patent Document 8] US 3,915,921 [Patent Document 9] US 4,509,949 [Patent Document 10] EP-A-0 173 109 [Patent Document 11] WO 00 / 31154 [Patent Document 12] EP-A750 899 [Patent Document 13] US-5,089,578 [Patent Document 14] WO-00 / 68282 [Patent Document 15] WO 98 / 44012

Non-licensed documents

[0009]

Non-patent document 1

Non-patent document 2

Non-patent document 3

Non-patent document 4

Non-patent document 5

Non-patent document 6

[0010] It is an object of the present invention to provide a stable two-phase composition that 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 be cleanly converted back to a two-phase composition. [Means for solving the problem]

[0011] The above objectives are: (a) an oily phase comprising at least one oil; (b) a compound represented by the following 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-C6 alkyl group or an aryl group. At least one aromatic ketone compound represented by (c) at least one polyhydroxy acid or salt thereof; (d) Water, and (e) at least one polyglyceryl fatty acid ester 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 the group consisting of hydrocarbon oils, ether oils, ester oils, and mixtures thereof, preferably volatile hydrocarbon oils, ether oils, ester oils, and mixtures thereof, more preferably isohexadecane, isododecane, dicaprylyl ether, isopropyl myristate, and mixtures thereof.

[0016] The amount of (a) oil in the composition according to the present invention may be in the range of 6% by mass to 70% by mass, preferably 8% by mass to 60% by mass, and more preferably 10% by mass to 50% by mass, relative to 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 in the range of 0.001% by mass to 1% by mass, preferably 0.005% by mass to 0.5% by mass, and more preferably 0.01% by mass to 0.1% by mass, relative to the total mass of the aqueous phase of the composition.

[0020] (c) The polyhydroxy acid may be in the form of a lactone. (c) The polyhydroxy acid may be a gluconolactone.

[0021] The amount of (c) polyhydroxy acid or a salt thereof in the composition according to the present invention may be in the range of 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 aqueous phase of the composition.

[0022] The amount of (d) water in the composition according to the present invention may be in the range of 60% by mass to 95% by mass, preferably 70% by mass to 93% by mass, and more preferably 80% by mass to 90% by mass, based on the total mass of the composition.

[0023] The composition according to the present invention is preferably C4-C 14 The composition may also comprise (e) two or more polyglyceryl fatty acid esters selected from polyglyceryl fatty acid mono- and diesters, more preferably a mixture of polyglyceryl-6 caprylate and polyglyceryl-6 dicaprate.

[0024] 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.

[0025] 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; applying the single-phase composition to keratinous materials; The present invention also relates to a cosmetic method including: DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] After extensive investigation, the inventors have discovered that it is possible to provide a stable two-phase composition that can be converted to a single-phase composition by mixing at the time of use, where the single-phase composition can provide good cosmetic benefits, such as good make-up removal ability, without discomfort, and that can cleanly revert back to a two-phase composition when not in use.

[0027] 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; (b) a compound represented by the following formula (I):

[0028] [ka]

[0029] (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. At least one aromatic ketone compound represented by (c) at least one polyhydroxy acid or salt thereof; (d) Water, and (e) at least one polyglyceryl fatty acid ester an aqueous phase comprising The present invention relates to a two-phase composition comprising:

[0030] The composition according to the present invention is stable and has two visually distinct phases when not mixed. On the other hand, the composition according to the present invention can be converted into a single-phase composition when mixed. A single-phase composition such as an emulsion can provide good cosmetic effects such as good makeup removal without discomfort. A single-phase composition can be easily converted back into a two-phase composition.

[0031] 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.

[0032] In particular, the composition according to the present invention can be stable such 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 can be stable at low or high temperatures, with or without shaking.Accordingly, the composition according to the present invention can be appropriately stored, especially at low or high temperatures, even during transportation by car, which may cause vibration, etc.

[0033] 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.

[0034] 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 being mixed again.

[0035] 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.

[0036] Furthermore, the single-phase composition formed by the two-phase composition according to the present invention can penetrate slowly into porous substrates such as cotton sheets used to remove makeup. The slow penetration can cause more of the single-phase composition to remain on the substrate. Thus, a larger amount of the single-phase composition can effect better makeup removal.

[0037] Furthermore, the single-phase composition formed by the two-phase composition according to the present invention can be comfortable, e.g., less irritating. Thus, the composition according to the present invention can be, for example, gentle on the skin, especially on sensitive skin, such as the skin around the eyes. Accordingly, the composition according to the present invention can provide good cosmetic effects, such as good make-up removal, without discomfort.

[0038] 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.

[0039] The single-phase composition formed by the two-phase composition according to the present invention can be converted back to a two-phase composition again after a certain period of time by causing phase separation to reform two visually distinct phases again. If the conversion speed is too fast, phase separation may occur even during use, which may cause the cosmetic effect of the present invention to be reduced. According to the present invention, the conversion speed is appropriate and can be relatively slow, so that phase separation during use can be prevented. As a result, the present invention can provide enhanced cosmetic effect.

[0040] According to the invention, it is also possible that the two returned phases are clean so that droplets that may be formed by one of the oily or aqueous phases, among other phases, cannot adhere to the walls of the container containing the composition according to the invention after phase separation.

[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 that is in the form of a liquid or paste (non-solid) at atmospheric pressure (760 mmHg) and 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 non-polar oils such as hydrocarbon oils and symmetric ether oils, silicone oils, polar oils such as vegetable or animal oils, and ester oils and asymmetric ether oils, or mixtures 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-C26 They are liquid esters with aliphatic monohydric or polyhydric alcohols, the total number of carbon atoms in the ester being 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 C12 ~C 22 Sugar esters and diesters of fatty acids can be used. It is recalled that the term "sugar" means an oxygen-containing hydrocarbon-based compound containing at least 4 carbon atoms and containing several alcohol functional groups, with or without aldehyde or ketone functional groups. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

[0058] Examples of suitable sugars that may be mentioned include 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, e.g. methylglucose.

[0059] Sugar esters of fatty acids are in particular those which are composed of the aforementioned sugars and linear or branched, saturated or unsaturated C6-C 30 , preferably C 12 ~C 22 They can be selected from the group comprising esters or mixtures of esters with fatty acids, which, 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, myristate, behenate, coconut, stearate, linoleate, linolenate, caprate and arachidonic acid esters, or mixtures thereof, such as, inter alia, mixed esters of oleopalmitate, oleostearate and palmitostearate, 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, for example, capryl caprylyl 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, and methylhydrogenpolysiloxane; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; and mixtures thereof.

[0067] Preferably, the silicone oil is chosen from polydialkylsiloxane liquids, especially 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, which contain in their structure one or more organic functional groups that are linked via a hydrocarbon-based group.

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

[0070] If 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 Silbione® 70045 V2 by Rhodia, Volatile Silicone® 7158 by Union Carbide, decamethylcyclopentasiloxane, 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 dimethylsiloxane / methylalkylsiloxane type, such as, for example, Silicone Volatile® FZ 3109 sold by Union Carbide, of the following formula:

[0071] [ka]

[0072] Also included are 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. (ii) Contains 2 to 9 silicon atoms and has a molecular weight of 5 × 10 at 25 °C -6 m 2Linear volatile polydialkylsiloxanes with a viscosity of less than 1000 / s. An example is decamethyltetrasiloxane, sold in particular under the name SH 200 by Toray Silicone. Silicones belonging to this class are also described in the article published in Cosmetics and Toiletries, Vol. 91, January 1976, pages 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25°C according to ASTM Standard 445 Appendix C.

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

[0074] Among these polydialkylsiloxanes, mention may be made, in a non-limiting manner, of 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. 60,000mm viscosity 2 / s DC 200, and - Viscasil® oils manufactured by General Electric and certain oils of the SF series manufactured by 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] Phenyl silicone oils have the 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 groups, 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.) The phenyl silicones may be selected from the group consisting of phenyl silicones.

[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, an oil made by Dow Corning; - PK series silicones from Bayer, e.g. product PK20, - 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 (wherein R1 to R 10 is methyl, p, q and n=0, and m=1).

[0082] The organically modified liquid silicones may in particular contain polyethyleneoxy and / or polypropyleneoxy groups. Mention may thus be made of 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 include hexane, undecane, dodecane, tridecane, and isoparaffins, such as isohexadecane, isododecane, and isodecane; - linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, 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, and naphthalene; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymers; and mixtures thereof.

[0085] The term "fatty" in fatty alcohol refers to the inclusion of 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 within 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 unsubstituted or substituted 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] Thus, 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 Alcohol can be selected.

[0089] The term "saturated fatty alcohol" as used herein means 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 be preferably used. Any linear or branched saturated C 16 ~C 20 Fatty alcohols are more preferably used. 16 ~C 20Fatty alcohols may be used even more preferably.

[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 the group consisting of hydrocarbon oils, ether oils, ester oils, and mixtures thereof. The (a) oil may be preferably selected from the group consisting of volatile hydrocarbon oils, ether oils, ester 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 have the following 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. Dicaprylyl ether may be most preferred.

[0100] Ester oils are saturated or unsaturated, linear or branched C 10 ~C 26 Monoesters of aliphatic monoacids and saturated or unsaturated linear or branched C1-C 26 The monoesters of aliphatic monohydric alcohols can be selected from saturated linear C 10 ~C 26 Monoesters of aliphatic monoacids and saturated branched C1-C 10 Monoesters of fatty alcohols may be more preferred.

[0101] It may even be more preferred that the ester oil is selected from isopropyl palmitate, isopropyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and mixtures thereof.

[0102] It is particularly preferred that the (a) oil is selected from the group consisting of isohexadecane, isododecane, dicaprylyl ether, isopropyl myristate, and mixtures thereof.

[0103] The amount of (a) oil in the composition according to the present invention may be 6% by weight or more, preferably 8% by weight or more, more preferably 10% by weight or more, relative to the total weight of the composition.

[0104] The amount of (a) oil in the composition according to the present invention may be 70% by mass or less, preferably 60% by mass or less, more preferably 50% by mass or less, based on the total mass of the composition, provided that the amount of (a) oil is not zero.

[0105] The amount of (a) oil in the composition according to the present invention may be in the range of 6% by mass to 70% by mass, preferably 8% by mass to 60% by mass, and more preferably 10% by mass to 50% by mass, relative to the total mass of the composition.

[0106] (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.

[0107] (b) An aromatic ketone compound has the following chemical formula (I):

[0108] [ka]

[0109] (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. It is represented by:

[0110] Examples of C1-C6 alkyl groups include methyl, ethyl and propyl groups, with the methyl group being preferred.

[0111] Examples of C1-C6 alkoxy groups include methoxy, ethoxy and propoxy groups, with methoxy being preferred.

[0112] 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.

[0113] 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.

[0114] (b) Examples of aromatic ketone compounds include the following: 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.

[0115] (b) The aromatic ketone compound is preferably hydroxyacetophenone, more preferably monohydroxyacetophenone, and even more preferably 4-hydroxyacetophenone.

[0116] The amount of (b) the aromatic ketone compound in the composition according to the present invention may be 0.001% by mass or more, preferably 0.005% by mass or more, more preferably 0.01% by mass or more, based on the total mass of the aqueous phase of the composition.

[0117] The amount of (b) aromatic ketone compound in the composition according to the present invention may be 1 mass % or less, preferably 0.5 mass % or less, more preferably 0.1 mass % or less, based on the total mass of the aqueous phase of the composition, with the proviso that the amount of (b) aromatic ketone compound is not zero.

[0118] The amount of the (b) aromatic ketone compound in the composition according to the present invention may be in the range of 0.001% by mass to 1% by mass, preferably 0.005% by mass to 0.5% by mass, and more preferably 0.01% by mass to 0.1% by mass, relative to the total mass of the aqueous phase of the composition.

[0119] (Polyhydroxy acid) The composition according to the present invention comprises (c) at least one polyhydroxy acid or salt thereof. When two or more polyhydroxy acids or salts thereof are used, they may be the same or different.

[0120] The term "polyhydroxy acid" as used herein means an organic compound having at least one carboxyl group and multiple hydroxyl groups. The number of carboxyl groups in the polyhydroxy acid is not limited, but one or two carboxyl groups are preferred, and one carboxyl group is more preferred. The number of hydroxyl groups in the polyhydroxy acid is also not limited, but 2 to 10 are preferred, and 2 to 6 are more preferred. The number of carbon atoms in the polyhydroxy acid is not limited, but 3 to 11 are preferred, and 3 to 8 are more preferred.

[0121] The organic compound may be aliphatic or aromatic. In other words, the polyhydroxy acid may be selected from aliphatic polyhydroxy acids or aromatic polyhydroxy acids. It is preferred that the aliphatic polyhydroxy acid is selected from sugar acids.

[0122] Examples of polyhydroxy acids include dihydroxypropanoic acids such as glyceric acid; trihydroxybutyric acids such as erythronic acid and threonic acid; tetrahydroxypentanoic acids such as ribonic acid, arabinonic acid, xylonic acid, and lyxonic acid; pentahydroxyhexanoic acids such as allonic acid, altronic acid, gluconic acid, mannoic acid, gulonic acid, idonic acid, galactonic acid, and talonic acid; hexahydroxyheptanoic acids such as glucoheptanoic acid and galactoheptonic acid; tartaric acid; lactobionic acid, maltobionic acid, and mixtures thereof.

[0123] The (c) polyhydroxy acid is preferably in the form of a lactone. The lactone ring of the (c) polyhydroxy acid in the form of a lactone may be saturated. Examples of the (c) polyhydroxy acid include gluconolactone, ribonolactone, and mixtures thereof.

[0124] (c) The polyhydroxy acid is more preferably gluconolactone.

[0125] The type of salt is not limited. Examples of salt include alkali metal salts such as sodium salts and potassium salts; alkaline earth metal salts such as calcium salts and magnesium salts; zinc salts; iron salts; ammonium salts; amine salts such as monoethanolamine salts, diethanolamine salts and triethanolamine salts; and mixtures thereof. Sodium salts are preferred. When two or more salts are used, they may be the same or different.

[0126] The amount of (c) polyhydroxy acid or its salt 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, based on the total weight of the aqueous phase of the composition.

[0127] The amount of (c) polyhydroxy acid or a salt thereof in the composition according to the present invention may be 5% by weight or less, preferably 3% by weight or less, more preferably 1% by weight or less, based on the total weight of the aqueous phase of the composition, with the proviso that the amount of (c) polyhydroxy acid or a salt thereof is not zero.

[0128] The amount of (c) polyhydroxy acid or a salt thereof in the composition according to the present invention may be in the range of 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 aqueous phase of the composition.

[0129] (water) The composition according to the present invention comprises (d) water.

[0130] (d) Water may form the aqueous phase of the composition according to the present invention.

[0131] The amount of (d) water in the composition according to the present invention may be 20% by mass or more, preferably 30% by mass or more, and more preferably 40% by mass or more, based on the total mass of the composition.

[0132] The amount of (d) water in the composition according to the present invention may be 80% by mass or less, preferably 70% by mass or less, and more preferably 60% by mass or less, based on the total mass of the composition, provided that the amount of (d) water is not zero.

[0133] The amount of (d) water in the composition according to the present invention may be in the range of 20% by mass to 80% by mass, preferably 30% by mass to 70% by mass, and more preferably 40% by mass to 60% by mass, based on the total mass of the composition.

[0134] (Polyglyceryl fatty acid ester) The composition according to the present invention comprises (e) at least one polyglyceryl fatty acid ester. When two or more (e) polyglyceryl fatty acid esters are used, they may be the same or different.

[0135] (e) The fatty acid portion of the polyglyceryl fatty acid ester preferably contains 4 to 14 carbon atoms, preferably 5 to 12 carbon atoms, and more preferably 6 to 10 carbon atoms.

[0136] (e) When the polyglyceryl fatty acid ester has a single fatty acid moiety, it is preferred that the fatty acid moiety contains 4 to 14 carbon atoms, preferably 5 to 12 carbon atoms, and more preferably 6 to 10 carbon atoms.

[0137] (e) When the polyglyceryl fatty acid ester has multiple fatty acid moieties, each fatty acid moiety preferably contains 4 to 14 carbon atoms, preferably 5 to 12 carbon atoms, and more preferably 6 to 10 carbon atoms.

[0138] In other words, (e) the polyglyceryl fatty acid ester preferably does not contain a fatty acid moiety derived from a fatty acid having a long carbon chain (containing more than C14 carbon atoms).

[0139] (e) The polyglyceryl fatty acid esters may be selected from mono-, di- and triesters of linear or branched, saturated or unsaturated fatty acids, preferably saturated fatty acids, containing from 4 to 14 carbon atoms, preferably from 5 to 12 carbon atoms, more preferably from 6 to 10 carbon atoms, such as myristic acid, lauric acid, capric acid, and caprylic acid.

[0140] It is preferred that the (e) 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 (e) 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.

[0141] In the composition according to the present invention, the polyglyceryl fatty acid ester (e) is present in the aqueous phase and is therefore relatively hydrophilic.

[0142] Thus, the (e) 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 and / or 17.0 or less, preferably 16.0 or less, more preferably 15.0 or less. When two or more polyglyceryl fatty acid esters are used, the HLB value is determined by the weighted average of the HLB values ​​of all the polyglyceryl fatty acid esters.

[0143] The term HLB ("hydrophilic-lipophilic balance") is well known to those skilled in the art and reflects the ratio between the hydrophilic and 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.

[0144] (e) The polyglyceryl fatty acid ester can be selected from polyglyceryl fatty acid monoesters.

[0145] 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 weighted average of the HLB values ​​of all the polyglyceryl fatty acid monoesters.

[0146] The polyglyceryl fatty acid monoester may be selected from the group consisting of PG4 laurate (HLB:10.3), PG5 laurate (HLB:10.5), PG4 caprylate (HLB:14), PG4 caprate (HLB:about 15), PG5 myristate (HLB:15.4), PG5 oleate (HLB:12.2), PG6 caprylate (HLB:14.6), PG6 caprate (HLB:13.1), PG6 laurate (HLB:14.1) and mixtures thereof.

[0147] As PG6 caprylate, for example, Sunsoft Q-8H-C commercially available from Taiyo Kagaku Co., Ltd. can be used.

[0148] (e) The polyglyceryl fatty acid ester may be selected from polyglyceryl fatty acid diesters.

[0149] The polyglyceryl fatty acid diester 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 diesters are used, the HLB value is determined by the weighted average of the HLB values ​​of all the polyglyceryl fatty acid diesters.

[0150] The polyglyceryl fatty acid diester may be PG-6 dicaprylate (HLB: 13 to 15), PG-6 dicaprate (HLB: 10.2), or a mixture thereof.

[0151] As PG6 dicaprylate, for example, Sunsoft Q-102H-C commercially available from Taiyo Kagaku Co., Ltd. can be used.

[0152] (e) Polyglyceryl fatty acid ester is polyglyceryl C4-C 14 (Preferably C5-C 12 , more preferably C6 to C 10 ) fatty acid mono- and diesters, more preferably from the group consisting of polyglyceryl-6 caprylate, polyglyceryl-6 dicaprate, and mixtures thereof.

[0153] It is preferable to use a mixture of at least two polyglyceryl fatty acid esters, preferably selected from polyglyceryl fatty acid mono- and diesters, more preferably a mixture of polyglyceryl-6 caprylate and polyglyceryl-6 dicaprate.

[0154] The amount of (e) 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.

[0155] The amount of (e) polyglyceryl fatty acid ester in the composition according to the present 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 aqueous phase of the composition, with the proviso that the amount of (e) polyglyceryl fatty acid ester is not zero.

[0156] The amount of (e) polyglyceryl fatty acid ester in the composition according to the present invention may be from 0.001% by mass to 1% by mass, preferably from 0.005% by mass to 0.5% by mass, and more preferably from 0.01% by mass to 0.1% by mass, relative to the total mass of the aqueous phase of the composition.

[0157] (hydrophilic thickener) The composition according to the invention may comprise (f) at least one hydrophilic thickener. If two or more hydrophilic thickeners are used, they may be the same or different.

[0158] (f) Hydrophilic thickeners are capable of thickening the compositions according to the invention by thickening the aqueous phase of the compositions according to the invention.

[0159] According to the present invention, the "hydrophilic thickener" is capable of increasing the viscosity of the first composition and is stable at room temperature (25°C), atmospheric pressure and 1s -1 (viscosity may be measured using a cone / plate viscometer, Haake R600 rheometer, etc.) to at least 20 cps, preferably at least 50 cps, into the first composition.

[0160] (f) The hydrophilic thickener is preferentially chosen from non-associative thickening polymers having saccharide units, non-associative thickening polymers without saccharide units, associative thickening polymers, and mixtures of these compounds.

[0161] For the purposes of the present invention, the term "saccharide unit" refers to an oxygen-containing hydrocarbon-based compound containing several alcohol functional groups, with or without aldehyde or ketone functional groups, and containing at least 4 carbon atoms.

[0162] The sugar units may optionally be modified by substitution and / or by oxidation and / or by dehydration.

[0163] The sugar units which may be included in the non-associative thickening polymer are preferably derived from the following sugars: glucose, galactose, arabinose, rhamnose, mannose, xylose, fucose, anhydrogalactose, galacturonic acid, glucuronic acid, mannuronic acid, galactose sulfate, anhydrogalactose sulfate and fructose.

[0164] Non-associative thickening polymers containing sugar units that may be mentioned in particular are the natural gums, such as: a) Tree or shrub exudates, including: - Gum arabic (a branched polymer of galactose, arabinose, rhamnose and glucuronic acid); - Ghatti gum (a polymer derived from arabinose, galactose, mannose, xylose and glucuronic acid); - Karaya gum (polymer derived from galacturonic acid, galactose, rhamnose and glucuronic acid); - gum tragacanth (or tragacanth) (polymer of galacturonic acid, galactose, fucose, xylose and arabinose); b) Gums obtained from algae, including: - Agar (a polymer derived from galactose and anhydrogalactose); - Alginates (polymers of mannuronic and glucuronic acids); - Carrageenan and Furcellan (polymers of galactose sulfate and anhydrogalactose sulfate); c) Gums obtained from seeds or tubers, including: - Guar gum (a polymer of mannose and galactose); - Locust bean gum (polymer of mannose and galactose); - Fenugreek gum (polymer of mannose and galactose); - Tamarind gum (polymer of galactose, xylose and glucose); - Konjac gum (polymer of glucose and mannose); d) Microbial gums, including: - Xanthan gum (polymer of glucose, mannose acetate, mannose / pyruvic acid and glucuronic acid); - Gellan gum (a polymer of partially acylated glucose, rhamnose and glucuronic acid); - Scleroglucan gum (glucose polymer); e) Plant extracts, including: - Cellulose (glucose polymer); - Starch (glucose polymer) and - Inulin.

[0165] These polymers can be modified physically or chemically. Physical treatments can include, inter alia, temperature.

[0166] Chemical treatments that may be mentioned include esterification, etherification, amidation and oxidation reactions, which may result in particular in polymers that may be nonionic, anionic or amphoteric.

[0167] Preferably, these chemical or physical treatments are applied to guar gum, locust bean gum, starch and cellulose.

[0168] The non-ionic guar gum that may be used according to the invention may be modified with C1-C6 (poly)hydroxyalkyl groups.

[0169] Among the C1-C6 (poly)hydroxyalkyl groups, mention may be made, for example, of hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxybutyl groups.

[0170] These guar gums are well known in the art and may be prepared, for example, by reacting the corresponding alkene oxide, such as propylene oxide, with guar gum to give a guar gum modified with hydroxypropyl groups.

[0171] The degree of hydroxyalkylation preferably ranges from 0.4 to 1.2 and corresponds to the number of alkylene oxide molecules consumed by the number of free hydroxyl functions present in the guar gum.

[0172] Such non-ionic guar gums, optionally modified with hydroxyalkyl groups, are sold, for example, under the trade names Jaguar HP8, Jaguar HP60 and Jaguar HP120 by the company Rhodia Chimie.

[0173] The plant source of the starch molecules that may be used in the present invention may be a cereal or tuber. The starch is thus, for example, selected from maize starch, rice starch, cassava starch, barley starch, potato starch, wheat starch, sorghum starch and pea starch.

[0174] Starches can be physically or chemically modified, in particular by one or more of the following reactions: pregelatinization, oxidation, crosslinking, esterification, etherification, amidation, heat treatment.

[0175] Distarch phosphate or compounds rich in distarch phosphate, such as the products sold by the company Avebe under the references Prejel VA-70-T AGGL (gelatinized hydroxypropyl cassava distarch phosphate), Prejel TK1 (gelatinized cassava distarch phosphate) and Prejel 200 (gelatinized acetyl cassava distarch phosphate) or by the company National Starch under the reference Structure Zea (gelatinized corn distarch phosphate), will be used with preference.

[0176] According to the invention, amphoteric starches can also be used, which contain one or more anionic groups and one or more cationic groups. The anionic and cationic groups may be attached to the same or different reactive sites of the starch molecule; they are preferably attached to the same reactive site. The anionic groups can be of the carboxyl, phosphate or sulfate type, preferably of the carboxyl type. The cationic groups can be of the primary, secondary, tertiary or quaternary amine type.

[0177] The starch molecules may be derived from any vegetable starch source, such as, in particular, corn, potato, oat, rice, tapioca, sorghum, barley or wheat. It is also possible to use hydrolysates of the starches listed above. The starch is preferably derived from potato.

[0178] The non-associative thickening polymers of the present invention have C in their structure. 10 ~C 30 It may be a cellulosic polymer that does not contain fatty chains.

[0179] According to the present invention, the term "cellulosic polymer" means any polysaccharide compound having in its structure a sequence of glucose residues linked together via β-1,4 bonds; in addition to unsubstituted cellulose, the cellulose derivatives can be anionic, cationic, amphoteric or nonionic.

[0180] Thus, cellulose polymers that may be used in accordance with the present invention may be selected from unsubstituted celluloses, including those in microcrystalline form, and cellulose ethers.

[0181] Among these cellulosic polymers, cellulose ethers, cellulose esters and cellulose ester ethers are well known.

[0182] One of the cellulose esters is inorganic cellulose ester (such as cellulose nitrate, sulfate, phosphate, etc.), organic cellulose ester (such as cellulose monoacetate, triacetate, amidopropionate, acetate butyrate, acetate propionate, and acetate trimellitate, etc.), and organic / inorganic mixed ester of cellulose, such as cellulose acetate butyrate sulfate and cellulose acetate propionate sulfate. Among the cellulose ester ethers, hydroxypropylmethylcellulose phthalate and ethylcellulose sulfate can be mentioned.

[0183] C 10 ~C 30 Among the non-ionic cellulose ethers which do not contain fatty chains, i.e. which are "non-associative", there may be mentioned (C1-C4) alkyl celluloses, such as methyl cellulose and ethyl cellulose (e.g. Ethocel standard 100 Premium from Dow Chemical); (poly)hydroxy(C1-C4) alkyl celluloses, such as hydroxymethyl cellulose, hydroxyethyl cellulose (e.g. Natrosol 250 HHR from Aqualon) and hydroxypropyl cellulose (e.g. Klucel EF from Aqualon); (poly)hydroxy(C1-C4) alkyl(C1-C4) alkyl mixed celluloses, such as hydroxypropyl methylcellulose (e.g. Methocel E4M from Dow Chemical); hydroxyethyl methylcellulose, hydroxyethyl ethylcellulose (e.g. Bermocoll E 481 FQ from Akzo Noble) and hydroxybutyl methylcellulose.

[0184] Among the anionic cellulose ethers without fatty chains, mention may be made of (poly)carboxy(C1-C4) alkylcelluloses and their salts, such as carboxymethylcellulose, carboxymethylmethylcellulose (e.g. Blanose 7M from Aqualon) and carboxymethylhydroxyethylcellulose, as well as their sodium salts.

[0185] Among the cationic cellulose ethers without fatty chains, mention may be made of cationic cellulose derivatives, such as the cellulose copolymers or cellulose derivatives grafted with water-soluble quaternary ammonium monomers, in particular as described in patent US 4,131,576, such as (poly)hydroxy(C1-C4)alkylcelluloses, such as hydroxymethyl-, hydroxyethyl- or hydroxypropylcellulose, in particular grafted with methacryloylethyltrimethylammonium, methacrylamidepropyltrimethylammonium or dimethyldiallylammonium salts. Commercial products that correspond to this definition are, more particularly, the products sold under the names Celquat L 200® and Celquat H 100® by the company National Starch.

[0186] Among the non-associative thickening polymers without saccharide units that may be used according to the invention, mention may be made, alone or in mixtures, of crosslinked acrylic or methacrylic acid homopolymers or copolymers, crosslinked 2-acrylamido-2-methylpropanesulfonic acid homopolymers and their crosslinked acrylamide copolymers, ammonium acrylate homopolymers or copolymers of ammonium acrylate and acrylamide.

[0187] A first family of non-associative thickening polymers suitable for use is represented by the crosslinked acrylic acid homopolymers.

[0188] Among homopolymers of this type, mention may be made of those crosslinked with allyl alcohol ethers based on sugars, such as the products sold by the company Noveon under the names Carbopol 980, 981, 954, 2984 and 5984, or by the company 3 VSA under the names Synthalen M and Synthalen K. These polymers have the INCI name Carbomer.

[0189] The non-associative thickening polymer may also be a crosslinked (meth)acrylic copolymer, such as the polymer sold under the name Aqua SF1 by the company Noveon.

[0190] The non-associative thickening polymer may be selected from crosslinked 2-acrylamido-2-methylpropanesulfonic acid homopolymers and crosslinked acrylamide copolymers thereof.

[0191] Among the partially or completely neutralized crosslinked copolymers of 2-acrylamido-2-methylpropanesulfonic acid and acrylamide, mention may in particular be made of the products described in example 1 of document EP 503 853, to which reference may be made with regard to these polymers.

[0192] The composition may also contain, as a non-associative thickening polymer, an ammonium acrylate homopolymer or a copolymer of ammonium acrylate and acrylamide.

[0193] One of the ammonium acrylate homopolymers that may be mentioned is the product sold by the company Hoechst under the name Microsap PAS 5193. One of the copolymers of ammonium acrylate and acrylamide that may be mentioned is the product sold by the company Hoechst under the name Bozepol C Nouveau or the product PAS 5193. For the description and preparation of such compounds, reference may be made in particular to FR 2 416 723, US 2,798,053 and US 2,923,692.

[0194] Also, acrylic type cationic thickening polymers may be used.

[0195] Among the hydrophilic thickening polymers, mention may also be made in particular of associative polymers of nonionic, anionic, cationic or amphoteric nature, well known to those skilled in the art.

[0196] Associative polymers are recalled to be polymers capable of reversibly associating with each other or with other molecules in aqueous media.

[0197] Their chemical structure more particularly comprises at least one hydrophilic region and at least one hydrophobic region.

[0198] The term "hydrophobic group" means a group or polymer having a saturated or unsaturated, linear or branched hydrocarbon-based chain containing at least 10 carbon atoms, preferably 10 to 30 carbon atoms, in particular 12 to 30 carbon atoms and more preferentially 18 to 30 carbon atoms.

[0199] Preferably, the hydrocarbon-based group is derived from a monofunctional compound. By way of example, the hydrophobic group may be derived from a fatty alcohol such as stearyl alcohol, dodecyl alcohol or decyl alcohol. This may also represent a hydrocarbon-based polymer, such as polybutadiene.

[0200] Among the anionic type associative polymers that may be mentioned are the following: - (a) those comprising at least one hydrophilic unit and at least one fatty chain allyl ether unit, more particularly those in which the hydrophilic unit is composed of an ethylenically unsaturated anionic monomer, more particularly a vinyl carboxylic acid, most particularly acrylic acid or methacrylic acid or mixtures thereof.

[0201] Among these anionic associative polymers, particularly preferred according to the invention are polymers formed from 20% to 60% by weight of acrylic acid and / or methacrylic acid, 5% to 60% by weight of lower alkyl (meth)acrylate, 2% to 50% by weight of fatty chain allyl ether, and 0 to 1% by weight of a crosslinking agent, which is a well-known copolymerizable unsaturated polyethylene monomer, such as diallyl phthalate, allyl (meth)acrylate, divinylbenzene, (poly)ethylene glycol dimethacrylate or methylene bisacrylamide.

[0202] Among the latter polymers, the most particularly preferred are crosslinked terpolymers of methacrylic acid, ethyl acrylate and polyethylene glycol (10OE) stearyl alcohol ether (steareth-10), in particular those sold by the company CIBA under the names Salcare SC80® and Salcare SC90®, which are aqueous 30% emulsions of crosslinked terpolymers of methacrylic acid, ethyl acrylate and steareth-10 allyl ether (40 / 50 / 10). - (b) i) at least one hydrophilic unit of unsaturated olefin carboxylic acid type and ii) (C 10~ C 30 ) alkyl esters that contain at least one hydrophobic unit.

[0203] The unsaturated carboxylic acids useful in the present invention (C 10 ~C 30 ) Alkyl esters include, for example, lauryl acrylate, stearyl acrylate, decyl acrylate, isodecyl acrylate, and dodecyl acrylate, and the corresponding methacrylates, lauryl methacrylate, stearyl methacrylate, decyl methacrylate, isodecyl methacrylate, and dodecyl methacrylate.

[0204] Anionic polymers of this type are described and prepared, for example, according to patents US 3,915,921 and US 4,509,949.

[0205] One of the anionic associative polymers of this type that will be used in more detail is a polymer that is made up of 95% to 60% by weight of acrylic acid (hydrophilic units), 4% to 40% by weight of C 10 ~C 30 Consisting of alkyl acrylate (hydrophobic unit) and 0 to 6% by mass of a cross-linkable monomer, or 98% to 96% by mass of acrylic acid (hydrophilic unit), 1% to 4% by mass of C 10 ~C 30It is composed of alkyl acrylate (hydrophobic unit) and 0.1% to 0.6% by weight of a cross-linkable polymerizable monomer such as those mentioned above.

[0206] Among the abovementioned polymers, the most particularly preferred according to the invention are the products sold under the trade names Pemulen TR1®, Pemulen TR2®, Carbopol 1382®, and even more preferentially Pemulen TR1® by the company Goodrich, and the product sold under the name Coatex SX® by the company SEPPIC.

[0207] Mention may also be made of the acrylic acid / lauryl methacrylate / vinylpyrrolidone terpolymer sold under the name Acrylidone LM by the company ISP. - (c) Maleic anhydride / C 30 ~C 38 α-olefin / alkyl maleate terpolymers, such as the product sold under the name Performa V1608® by NewPhase Technologies (maleic anhydride / C 30 ~C 38 α-Olefin / isopropyl maleate copolymer). (d) Acrylic terpolymers, including: i) about 20% by mass to 70% by mass of an α,β-monoethylenically unsaturated carboxylic acid [A], ii) about 20% by weight to 80% by weight of an α,β-monoethylenically unsaturated non-surface-active monomer other than [A]; iii) about 0.5% to 60% by weight of a nonionic monourethane which is the product of the reaction of a monohydrogen surfactant with a monoethylenically unsaturated monoisocyanate; For example those described in patent application EP-A-0 173 109, more particularly the terpolymer described in Example 3, i.e. the methacrylic acid / methyl acrylate / behenyl alcohol dimethyl-meta-isopropenyl benzyl isocyanate ethoxylated (40OE) terpolymer, as an aqueous 25% dispersion. - (e) Among these monomers, copolymers containing α,β-monoethylenically unsaturated carboxylic acids and esters of α,β-monoethylenically unsaturated carboxylic acids and of oxyalkylated fatty alcohols.

[0208] Preferentially, these compounds also contain, as monomers, α,β-monoethylenically unsaturated carboxylic acid esters and esters of C1-C4 alcohols.

[0209] Examples of this type of compound that may be mentioned are Aculyn 22® sold by Rohm & Haas, which is a methacrylic acid / ethyl acrylate / oxyalkylated stearyl methacrylate terpolymer; and Aculyn 88, also sold by Rohm & Haas. (f) amphiphilic polymers comprising at least one ethylenically unsaturated monomer having a sulfo group in free or partially or completely neutralized form and comprising at least one hydrophobic moiety. These polymers may be crosslinked or non-crosslinked. They are preferably crosslinked.

[0210] The ethylenically unsaturated monomer having a sulfo group is particularly vinyl sulfonic acid, styrene sulfonic acid, (meth)acrylamide (C1-C 22 N-(C1-C) alkylsulfonic acid, undecylacrylamido methanesulfonic acid, etc. 22 ) Alkyl (meth)acrylamide (C1-C 22 ) alkyl sulfonic acids, and their partially or fully neutralized forms, and mixtures thereof.

[0211] (Meth)acrylamide (C1-C 22) Alkyl sulfonic acids, such as acrylamido methanesulfonic acid, acrylamido ethanesulfonic acid, acrylamido propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, methacrylamide-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylamido dodecylsulfonic acid or 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, and also their partially or completely neutralized forms, are more preferentially used.

[0212] 2-Acrylamido-2-methylpropanesulfonic acid (AMPS) and its partially or fully neutralized forms are more particularly used.

[0213] This family of polymers consists of C6-C 22 They may in particular be chosen from random amphiphilic AMPS polymers modified by reaction with n-monoalkylamines or di-n-alkylamines, such as those described in patent application WO 00 / 31154. These polymers may also contain other ethylenically unsaturated hydrophilic monomers, chosen for example from (meth)acrylic acid, their β-substituted alkyl derivatives, or their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.

[0214] Preferred polymers of this family are selected from amphiphilic copolymers of AMPS and at least one ethylenically unsaturated hydrophobic monomer.

[0215] These same copolymers may also contain one or more ethylenically unsaturated monomers that do not contain a fatty chain, such as (meth)acrylic acid, their β-substituted alkyl derivatives or their esters obtained with monoalcohols or with mono- or polyalkylene glycols, (meth)acrylamide, vinylpyrrolidone, maleic anhydride, itaconic acid or maleic acid, or mixtures of these compounds.

[0216] These copolymers are described, inter alia, in patent application EP-A-0 750 899, patent US 5,089,578 and in the following publications by Yotaro Morishima: - Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Vol. 18, No. 40 (2000), pp. 323-336; - Micelle formation of random copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and a nonionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering, Macromolecules, Vol. 33, No. 10, 2000, pp. 3694-3704; - Solution properties of micelle networks formed by nonionic moieties covalently bound to a polyelectrolyte: salt effects on rheological behavior - Langmuir, 2000, Vol. 16, No. 12, pp. 5324-5332; - Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers, Polym. Preprint, Div. Polym. Chem., 40(2), (1999), pp. 220-221.

[0217] Among these polymers, mention may be made of: - 15% to 60% by weight of AMPS units and 40% to 85% by weight of (C8 to C 16 ) alkyl (meth)acrylamide or (C8-C 16 ) crosslinked or non-crosslinked, neutralized or non-neutralized copolymers which contain alkyl (meth)acrylate units, such as those described in patent application EP-A 750 899; - 10 mol% to 90 mol% acrylamide units, 0.1 mol% to 10 mol% AMPS units, and 5 mol% to 80 mol% n-(C6 to C 18 ) Terpolymers containing alkylacrylamide units, such as those described in patent US Pat. No. 5,089,578.

[0218] Mention may also be made of fully neutralized copolymers of AMPS and dodecyl methacrylate, as well as crosslinked and non-crosslinked copolymers of AMPS and n-dodecyl methacrylamide, such as those described in the Morishima paper mentioned above.

[0219] Among the cationic associative polymers, mention may be made of the following: (a) cationic associative polyurethane; (b) A compound sold under the name Aqua CC by Noveon, which corresponds to the INCI name Polyacrylate-1 Crosspolymer.

[0220] Polyacrylate-1 crosspolymer is the polymerization product of a mixture of monomers including: - di(C1-C4 alkyl)amino(C1-C6 alkyl) methacrylate, - one or more C1-C (meth)acrylic acids 30 Alkyl esters, - Polyethoxylated Methacrylic Acid C 10 ~C 30 Alkyl (20-25 moles of ethylene oxide units), - 30 / 5 polyethylene glycol / polypropylene glycol allyl ether, - hydroxy(C2-C6 alkyl) methacrylate, and - Ethylene glycol dimethacrylate.

[0221] (c) Quaternized (poly)hydroxyethylcelluloses, or mixtures thereof, modified with a group containing at least one fatty chain, such as an alkyl, arylalkyl or alkylaryl group containing at least 8 carbon atoms. The alkyl group carried by the above quaternized celluloses or hydroxyethylcelluloses preferably contains 8 to 30 carbon atoms. The aryl group preferably represents a phenyl, benzyl, naphthyl or anthryl group. C8 to C 30 Examples of quaternized alkylhydroxyethylcelluloses containing fatty chains are the products Quatrisoft LM 200®, Quatrisoft LM-X 529-18-A®, and Quatrisoft LM-X 529-18-B® (C 12 alkyl) and Quatrisoft LM-X 529-8 (registered trademark) (C 18 alkyl), Crodacel QM®, Crodacel QL® (C 12 alkyl) and Crodacel QS® (C 18 alkyl), as well as the product Softcat SL 100® sold by Aqualon. (d) Cationic polyvinyl lactam polymers.

[0222] Such polymers are described, for example, in patent application WO-00 / 68282.

[0223] As cationic poly(vinyl lactam) polymers which may be used in the present invention, in particular vinylpyrrolidone / dimethylaminopropyl methacrylamide / dodecyldimethylmethacryl-amidopropylammonium tosylate terpolymers, vinylpyrrolidone / dimethylaminopropyl methacrylamide / cocoyldimethylmethacrylamidopropylammonium tosylate terpolymers, vinylpyrrolidone / dimethylaminopropyl methacrylamide / lauryldimethylmethacrylamidopropylammonium tosylate or chloride terpolymers are used.

[0224] The amphoteric associative polymers are preferably chosen from those containing at least one acyclic cationic unit, and even more particularly those prepared from or containing 1 to 20 mol %, preferably 1.5 to 15 mol %, and even more particularly 1.5 to 6 mol %, of fatty chain monomers relative to the total number of moles of monomers.

[0225] Amphoteric associative polymers which may be used in the present invention are described and prepared, for example, in patent application WO 98 / 44012.

[0226] Among the amphoteric associative polymers that can be used in the present invention, the preferred one is the acrylic acid / (meth)acrylamidopropyltrimethylammonium chloride / stearyl methacrylate terpolymer.

[0227] The associative polymers of non-ionic type that can be used in the present invention are preferably chosen from: (a) Copolymers of vinylpyrrolidone and of fatty-chain hydrophobic monomers, examples which may be mentioned are: - the products Antaron V216® or Ganex V216® (vinylpyrrolidone / hexadecene copolymer) sold by the company ISP, - the products Antaron V220® or Ganex V220® (vinylpyrrolidone / eicosene copolymer) sold by the company ISP, (b) copolymers of C1-C6 alkyl methacrylates or acrylates and amphiphilic monomers containing at least one fatty chain, such as the oxyethylenated methyl acrylate / stearyl acrylate copolymer sold under the name Antil 208® by the company Goldschmidt; (c) copolymers of hydrophilic methacrylates or acrylates and hydrophobic monomers containing at least one fatty chain, such as polyethylene glycol methacrylate / lauryl methacrylate copolymers; (d) polyurethane polyethers which contain in their chains both hydrophilic blocks, usually of polyoxyethylenated nature, and hydrophobic blocks which may be solely aliphatic and / or cycloaliphatic and / or aromatic sequences; (e) polymers having an aminoplast ether backbone containing at least one fatty chain, such as the Pure Thix® compounds sold by Sud-Chemie; (f) cellulose or derivatives thereof modified with a group containing at least one fatty chain, such as an alkyl, arylalkyl or alkylaryl group or a mixture thereof, in which the alkyl group is of C8, in particular: * Non-ionic alkyl hydroxyethyl cellulose, such as the products Natrosol Plus Grade 330 CS and Polysurf 67(C) sold by Aqualon. 16 alkyl); * Nonionic nonoxynyl hydroxyethylcellulose, such as the product Amercell HM-1500 sold by the company Amerchol; * non-ionic alkylcelluloses, such as the product Bermocoll EHM 100 sold by the company Berol Nobel; (g) Associative guar derivatives, such as hydroxypropyl guar modified with fatty chains, for example those sold by Lamberti (C 22 (modified with alkyl chains) product Esaflor HM 22; sold by Rhodia Chimie (C 14 Miracare XC 95-3 and (C 20 Modified with alkyl chains) Product RE 205-146.

[0228] Preferably, the polyurethane polyether comprises at least two hydrocarbon-based lipophilic chains containing 6 to 30 carbon atoms, separated by a hydrophilic block, which may be side chains or terminal chains of the hydrophilic block. In particular, it is possible to envisage one or more side chains. In addition, the polymer may comprise a hydrocarbon-based chain at one or both ends of the hydrophilic block.

[0229] Polyurethane polyethers can be in the form of multiblocks, especially triblocks. The hydrophobic blocks can be at each end of the chain (for example, triblock copolymers with a hydrophilic central block) or at both ends and distributed throughout the chain (for example, multiblock copolymers). These same polymers can also be graft or star polymers.

[0230] Nonionic aliphatic chain polyurethane polyethers may be triblock copolymers, the hydrophilic blocks of which are polyoxyethylene chains containing 50 to 1000 oxyethylene groups. Nonionic polyurethane polyethers contain urethane bonds between the hydrophilic blocks, hence the name.

[0231] By extension, also included among the non-ionic fatty chain polyurethane polyethers are those in which the hydrophilic block is bonded to the lipophilic block via other chemical bonds.

[0232] As examples of non-ionic fatty chain polyurethane polyethers that may be used in the present invention, Rheolate 205®, or Rheolate® 208, 204 or 212, which have urea functional groups and are sold by the company Rheox, may also be used, as well as Acrysol RM184®.

[0233] Akzo C 12 ~C 14 Products with alkyl chains, Elfacos T210®, and C 18 Mention may also be made of the product Elfacos T212® which has an alkyl chain.

[0234] C sold at 20% solids in water 20 The product DW 1206B® from Rohm & Haas, which has an alkyl chain and a urethane bond, may also be used.

[0235] Furthermore, solutions or dispersions of these polymers may be used, in particular in water or in aqueous-alcoholic media. Examples of such polymers that may be mentioned are Rheolate® 255, Rheolate® 278 and Rheolate® 244 sold by the company Rheox. Also, the products DW 1206F and DW 1206J sold by the company Rohm & Haas may be used.

[0236] Polyurethane polyethers which may be used according to the invention are especially those described in the document G. Fonnum, J. Bakke and Fk. Hansen - Colloid Polym. Sci 271, 380-389 (1993).

[0237] More specifically, it is preferable to use a polyurethane polyether obtainable by polycondensation of at least three compounds including (i) at least one polyethylene glycol containing 150 to 180 mol of ethylene oxide, (ii) stearyl alcohol or decyl alcohol, and (iii) at least one diisocyanate.

[0238] Such polyurethane polyethers are sold, in particular, by the company Rohm & Haas under the names Aculyn 46® and Aculyn 44® [Aculyn 46® is a polycondensate of polyethylene glycol containing 15% by weight, 150 or 180 mol of ethylene oxide, stearyl alcohol and methylenebis(4-cyclohexylisocyanate) (SMDI) in a matrix of maltodextrin (4%) and water (81%); Aculyn 44® is a polycondensate of polyethylene glycol containing 35% by weight, 150 or 180 mol of ethylene oxide, decyl alcohol and methylenebis(4-cyclohexylisocyanate) (SMDI) in a mixture of propylene glycol (39%) and water (26%)].

[0239] (f) The hydrophilic thickener is preferably selected from (poly)hydroxy(C1-C4) alkyl celluloses, preferably selected from hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and mixtures thereof, more preferably hydroxyethyl cellulose.

[0240] The amount of (f) hydrophilic thickener 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 composition.

[0241] The amount of (f) hydrophilic thickener in the composition according to the present invention may be 0.4% by mass or less, preferably 0.3% by mass or less, more preferably 0.2% by mass or less, relative to the total mass of the composition, provided that the amount of (f) hydrophilic thickener is not zero.

[0242] The amount of (f) hydrophilic thickener in the composition according to the present invention can be in the range of 0.001% by mass to 0.4% by mass, preferably 0.005% by mass to 0.3% by mass, and more preferably 0.01% by mass to 0.2% by mass, relative to the total mass of the composition.

[0243] (Citrate ester) The composition according to the invention may comprise (g) at least one citric acid ester. When two or more citric acid esters are used, they may be the same or different.

[0244] (g) Citrate esters have the following chemical formula (I):

[0245] [ka]

[0246] (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, and R'4 represents a saturated or unsaturated linear or branched C1-C8 hydrocarbon group, or a saturated or unsaturated cyclic C3-C8 hydrocarbon group. It can be expressed as:

[0247] R1, R2 and R3 are all saturated or unsaturated, linear or branched C1-C 30 Hydrocarbon group or saturated or unsaturated cyclic C3-C 30Hydrocarbon 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.

[0248] 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).

[0249] (g) 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.

[0250] The amount of the (g) 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, based on the total mass of the composition.

[0251] The amount of the (g) 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, based on the total mass of the composition, provided that the amount of the (g) citrate ester is not zero.

[0252] The amount of the (g) citrate ester in the composition according to the present invention can be 0.1% by mass to 15% by mass, preferably 0.5% by mass to 10% by mass, and more preferably 1% by mass to 5% by mass, relative to the total mass of the composition.

[0253] (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.

[0254] The cosmetic active ingredient may preferably be water-insoluble or oil-insoluble.

[0255] 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.

[0256] The amount of cosmetic active ingredient in the composition according to the present invention may be up to 30% by weight, preferably up to 25% by weight, more preferably up to 20% by weight, relative to the total weight of the composition, provided that the amount of cosmetic active ingredient is not zero.

[0257] 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.

[0258] (Surfactant) The composition according to the invention may comprise at least one additional surfactant different from (e) the polyglyceryl fatty acid ester. When two or more additional surfactants are used, they may be the same or different.

[0259] However, small amounts of additional surfactant may be preferred.

[0260] 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.

[0261] (Other ingredients) The compositions of the present invention may also include at least one optional or additional ingredient.

[0262] 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.

[0263] 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.

[0264] 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.

[0265] 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.

[0266] 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.

[0267] 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.

[0268] 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, as well as their derivatives, preferably sodium or potassium hydroxide, and alkoxysilanes of the formula:

[0269] [ka]

[0270] (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.

[0271] 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.

[0272] (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.

[0273] The amount of oily phase in the composition according to the invention may be greater than or equal to 8% by weight, preferably greater than or equal to 10% by weight, more preferably greater than or equal to 12% by weight relative to the total weight of the composition.

[0274] 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.

[0275] The amount of oily phase in the composition according to the present invention may be from 8% to 80% by weight, preferably from 10% to 70% by weight, more preferably from 12% to 60% by weight, relative to the total weight of the composition.

[0276] The oily phase comprises (a) at least one oil as described above.

[0277] The amount of (a) at least one oil in the oily phase may be 75% by weight or more, preferably 80% by weight or more, more preferably 85% by weight or more, relative to the total weight of the oily phase.

[0278] 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 40% by weight, more preferably greater than or equal to 50% by weight relative to the total weight of the composition.

[0279] The amount of aqueous phase in the composition according to the invention may be up to 90% by weight, preferably up to 80% by weight, more preferably up to 70% by weight, relative to the total weight of the composition, provided that the amount of aqueous phase is not zero.

[0280] The amount of aqueous phase in the composition according to the present invention may be from 30% to 90% by mass, preferably from 40% to 80% by mass, more preferably from 50% to 70% by mass, relative to the total mass of the composition.

[0281] The aqueous phase comprises (b) at least one aromatic ketone compound, (c) at least one polyhydroxy acid or salt thereof, and (d) water.

[0282] 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.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] [Preparation] The composition according to the invention comprises forming an oily phase by (a) providing at least one oil or by mixing (a) at least one oil with other components of the oily phase; forming an aqueous phase by mixing (b) at least one aromatic ketone compound, (c) at least one polyhydroxy acid or salt thereof, and (d) water for the aqueous phase; combining an oily phase and an aqueous phase; It can be prepared by

[0287] For example, the composition according to the present invention comprises: (i) (a) supply at least one oil; or mixing at least one oil with at least one optional ingredient to form an oily phase; (ii) (b) at least one aromatic ketone compound; (c) at least one polyhydroxy acid or salt thereof, and (d) water 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:

[0288] The mixing step can be carried out by any conventional method.

[0289] The step of combining the oily and aqueous phases is preferably carried out gently, such as by slowly pouring the oily and aqueous phases into a vessel such as a container.

[0290] [Use and Method] When using the composition according to the present invention, it is mixed, for example, by shaking by hand.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 material to achieve the targeted cosmetic effect.

[0291] The keratin material may be the skin, the nails, mucous membranes such as the lips, or keratin fibres such as the eyebrows and eyelashes.

[0292] 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.

[0293] 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.

[0294] Compositions according to the present invention can provide cosmetic benefits, such as makeup removal.

[0295] 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.

[0296] The composition according to the present invention may also provide a good texture, such as a smooth feel, and therefore a smooth skin finish.

[0297] 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.

[0298] 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.

[0299] 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.

[0300] 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 keratinous materials; may include:

[0301] 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.

[0302] The present invention relates to (b) at least one aromatic ketone compound, and (c) at least one polyhydroxy acid or salt thereof, (d) The use in a two-phase composition comprising an aqueous phase containing water and (a) an oily phase containing oil, for the purpose of reducing the irritation of the composition, in particular reducing the irritation to the skin around the eyes.

[0303] 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) at least one polyhydroxy acid or salt thereof, 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, for the purpose of stabilising the composition and / or causing the composition to reform the oily and aqueous phases after mixing of the two-phase composition without the formation of droplets in one or both phases. EXAMPLES

[0304] 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.

[0305] (Examples 1 to 2 and Comparative Example 1) The following compositions according to Examples 1-2 and Comparative Example 1 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 components; (3) Pour the mixture of aqueous phase ingredients, followed by the mixture of oily phase ingredients, into a package in that order.

[0306] As shown in the "OP / AP mass ratio" in Table 1, the mixing mass ratio of the oily phase preparation: the aqueous phase preparation was 15:85 in Examples 1 and 2 and Comparative Example 1.

[0307] Please note that "hydroxyacetophenone" means 4-hydroxyacetophenone.

[0308] All values ​​for amounts of ingredients shown in Table 1 are based on "weight percent" of the active ingredient.

[0309] [Table 1A]

[0310] [Table 1B]

[0311] [evaluation] The compositions according to Examples 1 and 2 and Comparative Example 1 were evaluated as follows.

[0312] (eye discomfort) Each composition according to Examples 1-2 and Comparative Example 1 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes of 10 panelists using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0313] Ten panelists rated eye discomfort during the above applications.

[0314] The results are shown in Table 1.

[0315] (skin discomfort) Each composition according to Examples 1-2 and Comparative Example 1 was shaken to form an emulsion. 4 ml of the emulsion was applied onto the skin around the eyes of 10 panelists using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0316] Ten panelists rated the skin discomfort during the above applications.

[0317] The results are shown in Table 1.

[0318] (Water-resistant mascara removal ability) A water-resistant mascara product (MAYBELLINE NEW YORK Volum'Express Hypercurl Waterproof N 01 Black) was applied to the imitation eyelashes with a brush in a total of 30 strokes (each stroke was dipped into a bottle containing the mascara product). After 5 minutes, the above 30 stroke application was repeated. The mascara on the imitation eyelashes was then dried at 40°C for 30 minutes. The mass of the imitation eyelashes with mascara was measured. The mass of the mascara applied to the imitation eyelashes was determined by subtracting the mass of the original eyelashes without mascara from the mass of the imitation eyelashes with mascara.

[0319] Each composition according to Examples 1-2 and Comparative Example 1 was shaken to form an emulsion. 4 ml of the emulsion was absorbed into 1 g of a cotton sheet. The cotton sheet was applied to the artificial eyelashes and moved along the artificial eyelashes to remove the mascara from the artificial eyelashes using an instrument (Tribo-Master TL201Sa) under the following conditions: Input amount: 450g Travel distance: 30mm Speed: 1,200mm / min Number of repetitions: 40

[0320] The artificial eyelashes were dried and their weight was measured. The amount of mascara removed was determined by subtracting the weight of the artificial eyelashes after the above removal procedure from the weight of the artificial eyelashes with mascara before the above removal procedure.

[0321] The removal efficiency (%) was calculated by the following formula: Mass of mascara removed / mascara applied x 100

[0322] The results are shown in Table 1 in the row entitled "Waterproof mascara removal ability."

[0323] (Latex mascara removal ability) The above protocol for the above water-resistant mascara product was repeated except that the water-resistant mascara was replaced with a latex mascara (MAYBELLINE NEW YORK Lashionista Care+).

[0324] The results are shown in Table 1 in the row "Latex mascara removal ability."

[0325] (Droplets on the wall) Each of the compositions according to Examples 1 and 2 and Comparative Example 1 was shaken in a transparent glass container to form an emulsion. The formation of droplets on the wall of the transparent glass container was visually observed and evaluated according to the following criteria.

[0326] Very good: no visible droplets on the wall. Good: Some droplets may be visible on the walls, but very little. Fair: Some droplets can be seen on the walls. Poor: Dense collections of droplets can be observed on the walls.

[0327] The results are shown in Table 1 under the "Wall Droplets" row.

[0328] (Storage stability) Each of the compositions according to Examples 1 and 2 and Comparative Example 1 was placed in a transparent container and kept at room temperature for two months. After two months, the appearance of the oily and aqueous phases was visually observed and evaluated according to the following criteria. Very good: both the oil and aqueous phases are clear. Good: The oil and aqueous phases are slightly translucent, but there is no emulsion phase between the oil and aqueous phases. Fair: There is a thin layer of emulsion between the oily and aqueous phases. Poor: There is an emulsion phase between the oily and aqueous phases.

[0329] The results are shown in Table 1 in the "Storage stability" row.

[0330] (Summary) The compositions according to Examples 1 and 2, which contained component (c) (polyhydroxy acid in the form of a lactone), were less irritating than the composition according to Comparative Example 1, which did not contain component (c).

[0331] The compositions according to Examples 1 and 2 were two-phase compositions that were stable and could be converted into single-phase compositions by mixing when used, and the single-phase compositions could provide good makeup removal effects without discomfort, and could be neatly converted back into two-phase compositions when not in use.

[0332] (Example 3 and Comparative Examples 2 to 4) The following compositions according to Example 3 and Comparative Examples 2-4 shown in Table 2 were prepared by mixing the components shown in Table 2 as follows. (1) The ingredients of the oil phase preparation (OP preparation in Table 2) 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 2) are mixed at about 60° C. to form a homogenous mixture of the aqueous phase components; (3) Pour the mixture of aqueous phase ingredients, followed by the mixture of oily phase ingredients, into a package in that order.

[0333] As shown in the "OP / AP mass ratio" in Table 2, the mixing mass ratio of the oily phase preparation: the aqueous phase preparation was 15:85 in Example 3 and Comparative Examples 2 to 4.

[0334] Please note that "hydroxyacetophenone" means 4-hydroxyacetophenone.

[0335] All values ​​for amounts of ingredients shown in Table 2 are based on "weight percent" of the active ingredient.

[0336] [Table 2]

[0337] [evaluation] The compositions according to Example 3 and Comparative Examples 2 to 4 were evaluated as follows.

[0338] (eye discomfort) Each composition according to Example 3 and Comparative Examples 2-4 was shaken to form an emulsion. 4 ml of the emulsion was applied onto the skin around the eyes of five panelists using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0339] Five panelists rated the eye discomfort during the above applications on a scale of 1 (very bad) to 5 (excellent) and classified the average rating according to the following criteria: Excellent (5.0~4.0): No discomfort Good (3.9~3.0): Some discomfort Poor (2.9~2.0): Slight discomfort Very bad (1.9-1.0): Clear discomfort

[0340] The results are shown in Table 2.

[0341] (skin discomfort) Each composition according to Example 3 and Comparative Examples 2-4 was shaken to form an emulsion. 4 ml of the emulsion was applied onto the skin around the eyes of five panelists using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0342] Five panelists rated the skin discomfort during the above applications on a scale of 1 (very bad) to 5 (excellent) and classified the average rating according to the following criteria: Excellent (5.0~4.0): No discomfort Good (3.9~3.0): Some discomfort Poor (2.9~2.0): Slight discomfort Very bad (1.9-1.0): Clear discomfort

[0343] The results are shown in Table 2.

[0344] (Droplets on the wall) Each of the compositions according to Example 3 and Comparative Examples 2 to 4 was shaken in a transparent glass container to form an emulsion. The formation of droplets on the wall of the transparent glass container was visually observed and evaluated according to the following criteria.

[0345] Very good: no visible droplets on the wall. Good: Some droplets may be visible on the walls, but very little. Fair: Some droplets can be seen on the walls. Poor: Dense collections of droplets can be observed on the walls.

[0346] The results are shown in Table 2 in the "Wall Droplets" row.

[0347] (Storage stability) Each of the compositions according to Example 3 and Comparative Examples 2 to 4 was placed in a transparent container and kept at room temperature for two months. After two months, the appearance of the oily and aqueous phases was visually observed and evaluated according to the following criteria. Very good: both the oil and aqueous phases are clear. Good: The oil and aqueous phases are slightly translucent, but there is no emulsion phase between the oil and aqueous phases. Fair: There is a thin layer of emulsion between the oily and aqueous phases. Poor: There is an emulsion phase between the oily and aqueous phases.

[0348] The results are shown in Table 2 in the "Storage stability" row.

[0349] (Summary) The composition according to Example 3, which contained component (b) (an aromatic ketone compound), was less irritating than the compositions according to Comparative Examples 2 to 4, which did not contain component (b).

[0350] The composition according to Example 3 was a two-phase composition that was stable and could be converted into a single-phase composition by mixing when used, and the single-phase composition could provide good makeup removal effect without discomfort, and could be neatly returned to a two-phase composition when not in use.

[0351] (Example 4 and Comparative Example 5) The following compositions according to Example 4 and Comparative Example 5 shown in Table 3 were prepared by mixing the ingredients shown in Table 3 as follows:

[0352] (1) The ingredients of the oil phase preparation (OP preparation in Table 3) 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 3) are mixed at about 60° C. to form a homogenous mixture of the aqueous phase components; (3) Pour the mixture of aqueous phase ingredients, followed by the mixture of oily phase ingredients, into a package in that order.

[0353] As shown in the "OP / AP mass ratio" in Table 3, the mixing mass ratio of the oily phase preparation: the aqueous phase preparation was 15:85 in Example 4 and Comparative Example 5.

[0354] Please note that "hydroxyacetophenone" means 4-hydroxyacetophenone.

[0355] All values ​​for ingredient amounts shown in Table 3 are based on "wt %" as the active ingredient.

[0356] [Table 3]

[0357] [evaluation] The compositions according to Example 4 and Comparative Example 5 were evaluated as follows.

[0358] (eye discomfort) Each composition according to Example 4 and Comparative Example 5 was shaken to form an emulsion. 4 ml of the emulsion was applied onto the skin around the eyes of five panelists using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0359] Five panelists rated the eye discomfort during the above applications on a scale of 1 (very bad) to 5 (excellent) and classified the average rating according to the following criteria: Excellent (5.0~4.0): No discomfort Good (3.9~3.0): Some discomfort Poor (2.9~2.0): Slight discomfort Very bad (1.9-1.0): Clear discomfort

[0360] The results are shown in Table 3.

[0361] (skin discomfort) Each composition according to Example 4 and Comparative Example 5 was shaken to form an emulsion. 4 ml of the emulsion was applied onto the skin around the eyes of five panelists using a cotton sheet by massaging the area around the eyes with the cotton sheet in a circular motion for 30 seconds.

[0362] Five panelists rated the skin discomfort during the above applications on a scale of 1 (very bad) to 5 (excellent) and classified the average rating according to the following criteria: Excellent (5.0~4.0): No discomfort Good (3.9~3.0): Some discomfort Poor (2.9~2.0): Slight discomfort Very bad (1.9-1.0): Clear discomfort

[0363] The results are shown in Table 3.

[0364] (Droplets on the wall) Each composition according to Example 4 and Comparative Example 5 was shaken in a transparent glass container to form an emulsion. The formation of droplets on the wall of the transparent glass container was visually observed and evaluated according to the following criteria. Very good: no visible droplets on the wall. Good: Some droplets may be visible on the walls, but very little. Fair: Some droplets can be seen on the walls. Poor: Dense collections of droplets can be observed on the walls.

[0365] The results are shown in Table 3 under the "Wall Droplets" row.

[0366] (Storage stability) Each of the compositions according to Example 4 and Comparative Example 5 was placed in a transparent container and kept at room temperature for two months. After two months, the appearance of the oily and aqueous phases was visually observed and evaluated according to the following criteria. Very good: both the oil and aqueous phases are clear. Good: The oil and aqueous phases are slightly translucent, but there is no emulsion phase between the oil and aqueous phases. Normal: A thin layer of emulsion between the oil and aqueous phases Poor: There is an emulsion phase between the oil and aqueous phases

[0367] The results are shown in Table 3 in the "Storage stability" row.

[0368] (separation speed) Each composition according to Example 4 and Comparative Example 5 was shaken in a transparent glass container to form an emulsion. The rate at which the emulsion reformed into two phases was measured and evaluated according to the following criteria: Good: Moderate Average: Fast but acceptable Bad: Too fast

[0369] The results are shown in Table 3 in the row "Separation rate."

[0370] (Summary) The composition according to Example 4, which contained component (e) (polyglyceryl fatty acid ester), was stable, non-irritating, and could provide a clean appearance and suitable separation rate.

[0371] The composition according to Comparative Example 5, which did not contain component (e), was unstable and failed to provide a clean appearance and good separation rate.

Claims

1. (a) an oily phase comprising at least one oil; (b) the following chemical formula (I): 【Chemistry 1】 (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. at least one aromatic ketone compound represented by (c) at least one polyhydroxy acid or salt thereof; (d) water, and (e) at least one polyglyceryl fatty acid ester an aqueous phase comprising 1. A two-phase composition comprising:

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 convertible to a two-phase composition.

4. 2. The composition of claim 1, wherein the (a) oil is selected from the group consisting of hydrocarbon oils, ether oils, ester oils, and mixtures thereof, preferably selected from the group consisting of volatile hydrocarbon oils, ether oils, ester oils, and mixtures thereof, more preferably selected from the group consisting of isohexadecane, isododecane, dicaprylyl ether, isopropyl myristate, and mixtures thereof.

5. 2. The composition according to claim 1, wherein the amount of (a) oil in the composition is in the range of 6% to 70% by weight, preferably 8% to 60% by weight, and more preferably 10% to 50% by weight, relative to the total weight of the composition.

6. 2. The composition according to claim 1, wherein R in 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.

7. 2. The composition according to claim 1, wherein (b) the aromatic ketone compound is a hydroxyacetophenone, preferably a monohydroxyacetophenone, more preferably 4-hydroxyacetophenone.

8. The composition according to claim 1, wherein the amount of the (b) aromatic ketone compound in the composition is in the range of 0.001% by mass to 1% by mass, preferably 0.005% by mass to 0.5% by mass, and more preferably 0.01% by mass to 0.1% by mass, relative to the total mass of the aqueous phase of the composition.

9. 10. The composition of claim 1, wherein (c) the polyhydroxy acid is in the form of a lactone.

10. 2. The composition of claim 1, wherein (c) the polyhydroxy acid is gluconolactone.

11. The composition according to claim 1, wherein the amount of (c) polyhydroxy acid or its salt in the composition is in the range of 0.01% by weight to 5% by weight, preferably 0.05% by weight to 3% by weight, and more preferably 0.1% by weight to 1% by weight, relative to the total weight of the aqueous phase of the composition.

12. The composition according to claim 1, wherein the amount of (d) water in the composition is in the range of 20% by mass to 80% by mass, preferably 30% by mass to 70% by mass, and more preferably 40% by mass to 60% by mass, relative to the total mass of the composition.

13. 2. The composition of claim 1, comprising (e) two or more polyglyceryl fatty acid esters, preferably selected from C4 to C14 polyglyceryl fatty acid mono- and diesters, more preferably a mixture of Polyglyceryl-6 caprylate and Polyglyceryl-6 dicaprate.

14. 2. The composition according to claim 1, which is a cosmetic composition, preferably a cleansing cosmetic composition, more preferably a cleansing cosmetic composition for the skin and eyelashes.

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 the single-phase composition to keratinous materials; Beauty methods, including:

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