Two-phase composition

Abstract

The present invention relates to a two-phase composition comprising an oil phase and an aqueous phase, said oil phase comprising: (a) at least one ester oil, and (b) at least one hydrocarbon oil; said aqueous phase comprising: (c) at least one polyglyceryl fatty acid ester, and (d) water, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition. The composition according to the present invention has two visually distinct phases when unmixed. However, the composition according to the present invention can transform into a single-phase composition when mixed. The single-phase composition, such as an emulsion, can provide good cosmetic effects, such as good make-up removal ability, a smooth feel during application, and inhibition of residue on the walls of a package containing the composition. The single-phase composition can return to a two-phase composition over time at a controlled demulsification rate.

Description

Technical Field

[0001] The present invention relates to a two-phase or biphase composition having two visually distinct phases and capable of being transformed into a single-phase composition, wherein the single-phase composition can be transformed again into a two-phase or biphase composition. Background Technology

[0002] Compositions having two visually distinct phases (especially an aqueous phase and an oil phase that do not emulsify each other when at rest) are generally referred to as "two-phase" (or "biphase") compositions. They differ from emulsions in that the two phases are separated when at rest, and a single interface is formed between the two phases, rather than multiple interfaces between the continuous phase and the various discontinuous phases present in the emulsion.

[0003] Such two-phase compositions have been described, for example, in EP-A-370856 and EP-A-603 080, particularly for removing makeup around the eyes. Summary of the Invention

[0004] When used, the two-phase composition needs to be mixed, such as by shaking, to form a single-phase composition, such as a "temporary" emulsion, which is then applied to keratinous substances such as the skin. This single-phase composition is needed to provide targeted cosmetic effects, such as good makeup removability. Preferably, the single-phase composition provides a smooth feel during application. On the other hand, after use, i.e., at rest, the single-phase composition must return to its initial state by transforming into a two-phase composition; this is called "phase separation."

[0005] If the single phase formed by mixing two-phase compositions remains for a longer period of time, users of such two-phase compositions often experience a more moisturizing sensation. Therefore, controlling the rate of "phase separation," i.e., the demulsification rate, is important.

[0006] Another important factor is the cleanliness of the packaging containing the two-phase composition after mixing. Conventional two-phase compositions sometimes leave some residue on the walls of the packaging containing the composition after mixing. This residue gives users a "dirty" or "unclean" impression, which is undesirable.

[0007] Therefore, there is a need for biphasic or two-phase compositions that have two visually distinct phases when unmixed, which can be transformed into a single-phase composition when mixed, wherein the single-phase composition provides good cosmetic effects, such as good makeup removal ability, a smooth feel during application and inhibition of residue on the packaging wall containing the composition, and can return to its initial state, i.e., a biphasic or two-phase composition, at a controlled demulsification rate.

[0008] The object of the present invention is to provide a two-phase composition that, when mixed, can be transformed into a single-phase composition, wherein the single-phase composition provides good cosmetic effects, such as good makeup removal ability, a smooth feel during application, and inhibition of residue on the packaging wall containing the composition, and can return to its initial state, i.e., a two-phase or biphasic composition, at a controlled demulsification rate.

[0009] The above objective can be achieved by a two-phase composition comprising:

[0010] The oil phase comprises:

[0011] (a) at least one ester oil, and

[0012] (b) at least one hydrocarbon oil;

[0013] and

[0014] The aqueous phase, which includes:

[0015] (c) at least one polyglycerol fatty acid ester, and

[0016] (d) Water,

[0017] in

[0018] (b) The amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition.

[0019] The compositions according to the present invention can be transformed into single-phase compositions. Single-phase compositions can be transformed into two-phase compositions.

[0020] The ester oil (a) may be selected from saturated or unsaturated, straight-chain or branched C1-C... 26 Aliphatic monocarboxylic acids or polycarboxylic acids with saturated or unsaturated, straight-chain or branched C1-C bonds. 26 Esters of aliphatic monohydric or polyhydric alcohols; preferably saturated, straight-chain or branched C1-C. 26 Aliphatic monocarboxylic acids with saturated, straight-chain or branched C1-C 26 Esters of aliphatic monohydric alcohols; and more preferably alkyl myristate esters such as isopropyl myristate and alkyl palmitate esters such as isopropyl palmitate, and mixtures thereof.

[0021] The amount of (a) ester oil in the composition according to the invention may be 2% to 25% by weight, preferably 5% to 20% by weight, and more preferably 8% to 15% by weight relative to the total weight of the composition.

[0022] The hydrocarbon oil in (b) may be a volatile hydrocarbon oil, preferably selected from volatile branched C8-C hydrocarbon oils. 16 Hydrocarbon oil, and more preferably selected from isohexadecane, isodecane, isodecane, and mixtures thereof.

[0023] The amount of hydrocarbon oil in the composition according to the invention can be greater than 5% to 50% by weight, preferably greater than 5% to 45% by weight, and more preferably greater than 5% to 40% by weight relative to the total weight of the composition.

[0024] The polyglycerol fatty acid ester (c) may be selected from polyglycerol fatty acid diesters.

[0025] The (c) polyglycerol fatty acid ester may contain 2 to 6 polyglycerol units, preferably 4 to 6 polyglycerol units, and more preferably 5 or 6 polyglycerol units.

[0026] The polyglycerol fatty acid ester (c) may be selected from polyglycerol-6 didecanoate, polyglycerol-6 dioleate, polyglycerol-6 distearate, and mixtures thereof.

[0027] The amount of (c) polyglycerol fatty acid ester in the composition according to the invention may be 0.005% to 1% by weight, preferably 0.01% to 0.5% by weight, and more preferably 0.05% to 0.1% by weight, relative to the total weight of the aqueous phase of the composition.

[0028] The amount of water (d) in the composition according to the invention can be from 35% to 95% by weight, preferably from 40% to 90% by weight, and more preferably from 45% to 85% by weight relative to the total weight of the composition.

[0029] The weight ratio of oil phase to water phase can be 60:40 to 10:90, preferably 50:50 to 10:90, and more preferably 40:60 to 10:90.

[0030] The compositions according to the invention can be cosmetic compositions, preferably cleansing cosmetic compositions, and more preferably cleansing cosmetic compositions for skin and eyelashes.

[0031] The present invention also relates to a cosmetic method for using keratin substances, comprising:

[0032] Mixing the compositions according to the invention to form a single-phase composition; and

[0033] The single-phase composition is applied to a keratin material. Attached Figure Description

[0034] Figure 1 The appearance of the package wall is shown 30 minutes after the package containing the composition according to Example 1 has been fully shaken.

[0035] Figure 2 The appearance of the packaging wall is shown 30 minutes after the packaging containing the composition according to Comparative Example 3 has been fully shaken. Detailed Implementation

[0036] Through persistent research, the inventors have discovered that a two-phase composition can be provided that can be transformed into a single-phase composition upon mixing. The single-phase composition can provide good cosmetic effects, such as good makeup removal ability, a smooth feel during application, and inhibition of residues on the packaging wall containing the composition. It can also return to its initial state, i.e., a two-phase or biphasic composition, at a controlled demulsification rate.

[0037] Therefore, one aspect of the present invention relates to a two-phase composition comprising:

[0038] The oil phase comprises:

[0039] (a) at least one ester oil, and

[0040] (b) at least one hydrocarbon oil;

[0041] and

[0042] The aqueous phase, which includes:

[0043] (c) at least one polyglycerol fatty acid ester, and

[0044] (d) Water,

[0045] in

[0046] (b) The amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition.

[0047] The compositions according to the invention have two visually distinct phases when unmixed. However, the compositions according to the invention can transform into a single-phase composition upon mixing. Single-phase compositions (such as emulsions) can provide good cosmetic effects, such as good makeup removal ability, a smooth feel during application, and inhibition of residue on the walls of packaging containing the composition. Single-phase compositions can revert to a two-phase composition over time at a controlled demulsification rate.

[0048] The compositions according to the invention are stable, allowing them to retain both an oil phase and an aqueous phase when unmixed. Therefore, during storage and other processes, the compositions according to the invention can maintain a two-phase or biphase aspect.

[0049] In particular, the compositions according to the invention are stable, such that the state and / or odor of the compositions remain unchanged for extended periods under various temperatures and storage conditions. For example, the compositions according to the invention are stable at lower temperatures, with or without shaking. Therefore, the compositions according to the invention can be stored well, especially at lower temperatures, even during transport by vehicles that may cause vibrations, etc.

[0050] When used, the composition according to the invention is mixed. The two phases in the composition according to the invention are an oil phase and an aqueous phase. Therefore, when the composition according to the invention is mixed, one of the two phases can be dispersed in the other phase to form a visually homogeneous or monophase O / W or W / O composition, such as an O / W or W / O emulsion.

[0051] The mixing of the compositions according to the invention can be easily performed. For example, the mixing of the compositions according to the invention can be performed by hand shaking. After mixing the compositions according to the invention, the compositions can form a single phase and remain in a single phase for a certain period of time without further mixing.

[0052] According to the present invention, a single-phase composition formed from a two-phase composition can provide good cosmetic effects, such as good makeup removal ability. Therefore, the compositions according to the present invention can be used as cosmetic compositions, preferably cleansing cosmetic compositions, and more preferably cleansing cosmetic compositions for skin and eyelashes.

[0053] Furthermore, the single-phase composition formed from the two-phase composition according to the invention provides a good texture, such as a smooth touch. In addition, it provides less friction. Friction leads to relatively large loss of the outer layer of the skin's epidermis and makes the skin surface rough. Therefore, the composition according to the invention can provide a smooth skin finish.

[0054] The single-phase composition formed from the two-phase composition according to the invention can be less irritating. Therefore, the composition according to the invention can be, for example, gentle on the skin (especially sensitive skin, such as the skin around the eyes).

[0055] Furthermore, the compositions according to the invention, after being converted into single-phase compositions, can suppress residues or dirt on the walls of packaging containing the compositions. Therefore, packaging containing the compositions according to the invention can be kept clean during use.

[0056] Furthermore, if the two-phase composition according to the invention is transparent before mixing, the single-phase composition formed by mixing the two-phase composition can also be transparent.

[0057] A single-phase composition formed from a two-phase composition according to the invention can return to a two-phase composition after a certain period of time by inducing phase separation to reform two visually distinct phases.

[0058] According to the present invention, the demulsification rate of the single-phase composition can be controlled. For example, the single-phase composition can be sustained for a longer period of time. Therefore, the composition according to the present invention can provide a more moist feel. Furthermore, the usability of the single-phase composition formed from the two-phase composition according to the present invention can be extended, and thus the usability of the two-phase composition according to the present invention can be enhanced.

[0059] Furthermore, according to the present invention, the interface between the two reformed phases can be clean, such that there is no precipitation at the interface.

[0060] The compositions according to the invention are particularly suitable for use as makeup removers, preferably for keratin fibers, and more preferably for eyelashes (i.e., mascara).

[0061] The compositions according to the invention will be described in detail below.

[0062] [Composition]

[0063] (ester oil)

[0064] The composition according to the invention comprises (a) at least one ester oil. If two or more ester oils are used, they may be the same or different.

[0065] The ester oil (a) contributes to the formation of the oil phase of the composition according to the invention.

[0066] Here, "oil" refers to a fatty compound or substance that is in liquid or paste (non-solid) form at room temperature (25°C) and atmospheric pressure (760 mmHg). Oils are those commonly used in cosmetics, either alone or in combination. These oils can be volatile or non-volatile.

[0067] The ester oil (a) may be selected from saturated or unsaturated, straight-chain or branched C1-C... 26 Aliphatic monocarboxylic acids or polycarboxylic acids with saturated or unsaturated, straight-chain or branched C1-C bonds. 26 An ester of an aliphatic monohydric alcohol or polyhydric alcohol. The total number of carbon atoms in the ester is greater than or equal to 10, preferably 13, and more preferably 16.

[0068] Preferably, the (a) ester oil is selected from saturated, straight-chain or branched C1-C... 26 Aliphatic monocarboxylic acids with saturated, straight-chain or branched C1-C 26 Esters of aliphatic monohydric alcohols.

[0069] More preferably, for esters of monohydric alcohols, at least one of the alcohols and acids from which the esters of the present invention are derived is branched.

[0070] Among the monoesters of monobasic acids and monohydric alcohols, dioctyl carbonate may be mentioned; alkyl palmitates, such as ethyl palmitate, ethylhexyl palmitate, and isopropyl palmitate; alkyl myristates, such as isopropyl myristate and ethyl myristate; isocetyl stearate, 2-ethylhexyl isononanoate, isonononanoate, isodecanyl neopentanoate, and isostearyl neopentanoate.

[0071] C4-C can also be used 22 Dicarboxylic acids or tricarboxylic acids and C1-C 22 Esters of alcohols and monocarboxylic acids, dicarboxylic acids, or tricarboxylic acids with non-sugar C4-C 26 Esters of dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols.

[0072] In particular, the following can be mentioned: diethyl sebacate; lauroyl sarcosine isopropyl ester; diisopropyl sebacate; bis(2-ethylhexyl) sebacate; diisopropyl adipic acid; di-n-propyl adipic acid; dioctyl adipic acid; bis(2-ethylhexyl) adipic acid; diisostearate adipic acid; bis(2-ethylhexyl) maleate; triisopropanol citrate; triisoceryl citrate; triisostearate citrate; glyceryl triacetate; glyceryl trioctate; tri(octyldodecyl) citrate; trioleyl citrate; neopentyl glycol diheptanoate; and diethylene glycol diisonononate.

[0073] As an (a) ester oil, C6-C can be used. 30 And preferred C 12 -C 22 Glycoesters and diesters of fatty acids. Recall the term "sugar" as a compound containing some alcoholic functional groups, with or without aldehyde or ketone functional groups, and containing at least four carbon atoms. These sugars can be monosaccharides, oligosaccharides, or polysaccharides.

[0074] Suitable examples of sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, trehalose, maltose, fructose, mannose, arabinose, xylose, and lactose, and their derivatives, especially alkyl derivatives such as methyl derivatives, for example, methyl glucose.

[0075] The glycol esters of fatty acids may be selected, in particular, from the sugars previously described and from straight-chain or branched, saturated or unsaturated C6-C bonds. 30 And preferred C 12 -C 22 Esters or mixtures of esters of fatty acids. If they are unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.

[0076] The esters according to this variant can also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

[0077] These esters may be, for example, oleate, laurate, palmitate, myristate, benzyl ester, cocoate, stearate, linoleate, linolenic acid ester, decanoate, and arachidonic acid ester or mixtures thereof, especially, for example, oleopalmitate, oleostearate, and a mixture of palmitate and stearate, as well as pentaerythritol tetra(ethylhexanoate).

[0078] More specifically, monoesters and diesters are used, especially sucrose, glucose or methyl glucose monooleate or dioleate, stearate, benzyl ester, oleic palmitate, linoleate, linolenic acid ester and oleic stearate.

[0079] An example that can be mentioned is Amerchol, by name. The product sold by DO is methyl gluconate dioleate.

[0080] Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyl dodecyl octanoate, isodecanyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl octanoate / decanoate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dioctyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecanyl oleate, tri(2-ethylhexanoate) glycerol, pentaerythritol tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0081] The amount of (a) ester oil in the oil phase of the composition according to the invention may be 20% by weight or more, preferably 40% by weight or more, and more preferably 60% by weight or more, relative to the total weight of the oil phase.

[0082] The amount of (a) ester oil in the oil phase of the composition according to the invention may be 90% by weight or less, preferably 80% by weight or less, and more preferably 70% by weight or less, relative to the total weight of the oil phase, provided that the amount of (a) ester oil is not zero.

[0083] The amount of (a) ester oil in the oil phase of the composition according to the invention can be from 20% to 90% by weight, preferably from 40% to 80% by weight, and more preferably from 60% to 70% by weight relative to the total weight of the oil phase.

[0084] The amount of (a) ester oil in the composition according to the invention may be 2% by weight or more, preferably 5% by weight or more, and more preferably 8% by weight or more, relative to the total weight of the composition.

[0085] The amount of (a) ester oil in the composition according to the invention may be 25% by weight or less, preferably 20% by weight or less, and more preferably 15% by weight or less, relative to the total weight of the composition, provided that the amount of (a) ester oil is not zero.

[0086] The amount of (a) ester oil in the composition according to the invention may be 2% to 25% by weight, preferably 5% to 20% by weight, and more preferably 8% to 15% by weight relative to the total weight of the composition.

[0087] (hydrocarbon oil)

[0088] The composition according to the invention comprises (b) at least one hydrocarbon oil. If two or more hydrocarbon oils are used, they may be the same or different.

[0089] (b) Hydrocarbon oils contribute to the formation of the oil phase of the compositions according to the invention.

[0090] Here, "oil" refers to a fatty compound or substance that is in liquid or paste (non-solid) form at room temperature (25°C) and atmospheric pressure (760 mmHg). Oils are those commonly used in cosmetics, either alone or in combination. These oils can be volatile or non-volatile.

[0091] The hydrocarbon oil in (b) may be selected from:

[0092] -Straight or branched, optionally cyclic, C6-C 16 Lower alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane, and isoalkanes such as isohexadecane, isodecane, and isodecane; and

[0093] - Straight-chain or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene, and hydrogenated polyisobutylene, etc. And squalane.

[0094] As a preferred example of (b) hydrocarbon oils, references may be made to linear or branched hydrocarbons such as isohexadecane, isodecane, squalane, mineral oils (e.g., liquid paraffin), paraffin, petrolatum or petrolatum, naphthalene, etc.; hydrogenated polyisobutylene, isoeicosane and decene / butene copolymers; and mixtures thereof.

[0095] The hydrocarbon oil in (b) may be selected from volatile hydrocarbon oils, preferably from volatile branched C8-C hydrocarbon oils. 16 Hydrocarbon oil, and more preferably selected from isochetane, isodecane, isodecane, and mixtures thereof.

[0096] The amount of (b) hydrocarbon oil in the oil phase of the composition according to the invention may be 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the oil phase.

[0097] The amount of (b) hydrocarbon oil in the oil phase of the composition according to the invention may be 90% by weight or less, preferably 85% by weight or less, and more preferably 80% by weight or less relative to the total weight of the oil phase, provided that the amount of (b) hydrocarbon oil is not zero.

[0098] The amount of (b) hydrocarbon oil in the oil phase of the composition according to the invention can be from 20% to 90% by weight, preferably from 30% to 85% by weight, and more preferably from 40% to 80% by weight relative to the total weight of the oil phase.

[0099] The amount of (b) hydrocarbon oil in the composition according to the invention is greater than 5% by weight relative to the total weight of the composition.

[0100] The amount of (b) hydrocarbon oil in the composition according to the invention may be 50% by weight or less, preferably 45% by weight or less, and more preferably 40% by weight or less relative to the total weight of the composition, provided that the amount of (b) hydrocarbon oil is not zero.

[0101] The amount of hydrocarbon oil in the composition according to the invention can be greater than 5% to 50% by weight, preferably greater than 5% to 45% by weight, and more preferably greater than 5% to 40% by weight relative to the total weight of the composition.

[0102] (Ratio of ester oil to hydrocarbon oil)

[0103] The weight ratio of (a) ester oil to (b) hydrocarbon oil can be adjusted to control the demulsification rate of the single-phase composition formed from the two-phase composition according to the present invention.

[0104] The weight ratio of (a) the amount of ester oil to (b) the amount of hydrocarbon oil can be 10:90 to 90:10, preferably 20:80 to 80:20, and more preferably 30:70 to 70:30.

[0105] On the other hand, (a) the amount of ester oil) / (the sum of (a) the amount of ester oil and (b) the amount of hydrocarbon oil) can be 0.2 or higher, preferably 0.3 or higher, more preferably 0.4 or higher, even more preferably 0.5 or higher, and particularly preferably 0.6 or higher.

[0106] (a) The greater the amount of ester oil, the slower the demulsification rate of the single-phase composition formed from the two-phase composition according to the invention may be.

[0107] (Another oil)

[0108] The compositions according to the invention may contain at least one additional oil different from (a) an ester oil or (b) a hydrocarbon oil. If two or more additional oils are used, they may be the same or different.

[0109] Additional oils may contribute to the formation of the oil phase of the composition according to the invention.

[0110] Other oils can be selected from polar or non-polar oils.

[0111] Other oils may be selected from oils of plant or animal origin, synthetic triglycerides, silicone oils, fatty alcohols, and mixtures thereof.

[0112] Examples of vegetable oils include meadowfoam seed oil, flaxseed oil, camellia oil, macadamia 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.

[0113] Examples of animal fats include squalene and squalane.

[0114] Examples of synthetic triglycerides include capryl caprylyl glyceride, triglyceride myristate, triglyceride tripalmitate, triglyceride trilinolenic acid, triglyceride trilaurate, triglyceride tridecanoate, triglyceride tricaprylate, triglyceride tricaprylate (INCI name: caprylic / capric triglyceride), and triglyceride tricaprylate (decanoate / caprylate / linolenic acid).

[0115] Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane (INCI name: dimethylpolysiloxane), methylphenylpolysiloxane, methylhydropolysiloxane, etc.; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecylmethylcyclohexasiloxane, etc.; and mixtures thereof.

[0116] Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxane (PDMS) and liquid polyorganosiloxanes containing at least one aryl group.

[0117] These silicone oils can also be organically modified. The organically modified siloxanes that can be used according to the present invention are silicone oils as defined above, and contain one or more organic functional groups linked via hydrocarbon-based groups in their structure.

[0118] Organopolysiloxanes are defined in more detail in Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press. They can be volatile or non-volatile.

[0119] When they are volatile, the siloxanes are more particularly selected from those with boiling points from 60°C to 260°C, and even more particularly selected from:

[0120] (i) Cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms. These are, for example, specifically those produced by Union Carbide under the name Volatile. 7207 or by Rhodia in name Octamethylcyclotetrasiloxane sold by 70045V2, produced by Union Carbide under the name Volatile 7158. By Rhodia (using the name) Decamethylcyclopentasiloxane sold by 70045V5, and dodecylcyclopentasiloxane sold by Momentive Performance Materials under the name Silsoft 1217, and mixtures thereof. Also mentioned are cyclic copolymers of the dimethylsiloxane / methylalkylsiloxane type, such as Silicone sold by Union Carbide. FZ 3109 has the following formula:

[0121]

[0122] Mixtures of cyclic polydialkylsiloxanes and organosilicon compounds may also be mentioned, such as a 50 / 50 mixture of octamethylcyclotetrasiloxane and tetra(trimethylsilyl)pentaerythritol, and a mixture of octamethylcyclotetrasiloxane and oxy-1,1′-bis(2,2,2′,2′,3,3′-hexa(trimethylsiloxy))neopentane; and

[0123] (ii) Contains 2 to 9 silicon atoms and has a silicon content of less than or equal to 5 × 10⁻⁶ at 25 °C. -6 m 2Linear volatile polydialkylsiloxanes with a viscosity of / s. One example is decamethyltetrasiloxane, specifically sold by Toray Silicone under the name SH 200. Siloxanes belonging to this class are also described in the article published in Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the siloxanes was measured at 25°C according to ASTM Standard 445 Appendix C.

[0124] Non-volatile polydialkylsiloxanes can also be used. These non-volatile siloxanes are more specifically selected from polydialkylsiloxanes, among which polydimethylsiloxanes containing trimethylsilyl end groups are particularly noteworthy.

[0125] Among these polydialkylsiloxanes, the following products may be mentioned in a non-limiting manner:

[0126] - Series 47 and 70 047 sold by Rhodia oil or Oil, for example, oil 70 047V500 000;

[0127] - Sold by Rhodia Series oils;

[0128] - Oils from Dow Corning's 200 series, such as those with a viscosity of 60,000 mm. 2 DC200 / s; and

[0129] -From General Electric Oils and certain oils from the SF series (SF 96, SF 18) from General Electric.

[0130] Also mentioned are polydialkylsiloxanes containing dimethylsilanol end groups, such as the 48 series oil from Rhodia.

[0131] Among aryl-containing siloxanes, polydiarylsiloxanes, especially polydiphenylsiloxanes and polyalkylarylsiloxanes such as phenyl silicone oil, can be mentioned.

[0132] The phenyl silicone oil may be selected from phenylsiloxanes having the following formula:

[0133]

[0134] in:

[0135] -R1 to R10 Independently saturated or unsaturated, linear, cyclic or branched, C1-C based 30 Hydrocarbon groups, preferably based on C1-C 12 The hydrocarbon group, more preferably a group based on C1-C6 hydrocarbons, especially methyl, ethyl, propyl or butyl, and

[0136] -m, n, p, and q are independent integers from 0 to 900 (inclusive), preferably from 0 to 500 (inclusive), and more preferably from 0 to 100 (inclusive).

[0137] The condition is that the sum of n+m+q is not 0.

[0138] Examples that may be mentioned include products sold under the following names:

[0139] - From Rhodia's 70641 series Oil;

[0140] -From Rhodia 70633 and 763 series oils;

[0141] - Oil from Dow Corning, Dow Corning 556 Cosmetic Grade Fluid;

[0142] -Siloxanes from Bayer's PK series, such as product PK20;

[0143] - Certain oils from General Electric's SF series, such as SF 1023, SF 1154, SF 1250 and SF1265.

[0144] As a phenyl silicone oil, phenyl polytrimethylsiloxane (in the above formula, R1 to R...) 10 Methyl groups are preferred; p, q, and n = 0; m = 1.

[0145] Organically modified liquid siloxanes may in particular contain polyvinyloxy and / or polyacryloxy groups. This leads to reference to siloxane KF-6017 supplied by Shin-Etsu, and oils from UnionCarbide. L722 and L77.

[0146] The term "fatty" in fatty alcohols refers to alcohols containing a relatively large number of carbon atoms. Therefore, alcohols having four or more, preferably six or more, and more preferably twelve or more carbon atoms are included in the range of fatty alcohols. Fatty alcohols can be saturated or unsaturated. Fatty alcohols can be straight-chain or branched.

[0147] Fatty alcohols may have the structure R-OH, wherein R is selected from saturated and unsaturated, straight-chain and branched groups containing 4 to 40 carbon atoms, preferably 6 to 30 carbon atoms, and more preferably 12 to 20 carbon atoms. In at least one embodiment, R may be selected from C 12 -C 20 Alkyl and C 12 -C 20 Alkenyl group. R may or may not be substituted by at least one hydroxyl group.

[0148] Examples of fatty alcohols include lauryl alcohol, isostearyl alcohol, undecenoyl alcohol, octyldodecyl alcohol, hexyldecyl alcohol, oleyl alcohol, linoleyl alcohol, palm oil alcohol, arachidonic alcohol, and mixtures thereof.

[0149] Therefore, fatty alcohols can be selected from straight-chain or branched, saturated or unsaturated C6-C chains. 30 Alcohols, preferably straight-chain or branched saturated C6-C alcohols. 30 Alcohols, and more preferably straight-chain or branched saturated C 12 -C 20 alcohol.

[0150] The term "saturated fatty alcohol" here refers to an alcohol having a long aliphatic saturated carbon chain. Preferably, saturated fatty alcohols are selected from any straight-chain or branched saturated C6-C... 30 Fatty alcohols. In straight-chain or branched saturated C6-C... 30 In fatty alcohols, saturated C4 chains, whether straight-chain or branched, are preferred. 12 -C 20 Fatty alcohols. More preferably, any straight-chain or branched saturated C2O3 can be used. 16 -C 20 Fatty alcohols. Branched C-chains could even be preferred. 16 -C 20 Fatty alcohols.

[0151] Examples of saturated fatty alcohols include lauryl alcohol, isostearyl alcohol, undecenoyl alcohol, octyldodecyl alcohol, hexyldecyl alcohol, and mixtures thereof. In one embodiment, octyldodecyl alcohol and hexyldecyl alcohol can be used as saturated fatty alcohols.

[0152] According to at least one embodiment, the fatty alcohol used in the composition according to the invention is preferably selected from octyldodecyl alcohol, hexyldecyl alcohol, and mixtures thereof.

[0153] Preferably, the additional oil is not selected from ether oils.

[0154] The amount of additional oil in the oil phase of the composition according to the invention may be 3% by weight or more, preferably 5% by weight or more, and more preferably 10% by weight or more, relative to the total weight of the oil phase.

[0155] The amount of additional oil in the oil phase of the composition according to the invention may be 40% by weight or less, preferably 35% by weight or less, and more preferably 30% by weight or less relative to the total weight of the oil phase, provided that the amount of additional oil is not zero.

[0156] The amount of additional oil in the oil phase of the composition according to the invention may be 3% to 40% by weight, preferably 5% to 35% by weight, and more preferably 10% to 30% by weight relative to the total weight of the oil phase.

[0157] The amount of additional oil in the composition according to the invention may be 1% or more by weight, preferably 5% or more by weight, and more preferably 10% or more by weight relative to the total weight of the composition.

[0158] The amount of additional oil in the composition according to the invention may be 30% by weight or less, preferably 25% by weight or less, and more preferably 20% by weight or less relative to the total weight of the composition, provided that the amount of additional oil is not zero.

[0159] The amount of additional oil in the composition according to the invention may be from 1% to 30% by weight, preferably from 5% to 25% by weight, and more preferably from 10% to 20% by weight relative to the total weight of the composition.

[0160] (Polyglycerol fatty acid esters)

[0161] The compositions according to the invention comprise (c) at least one polyglycerol fatty acid ester. If two or more (c) polyglycerol fatty acid esters are used, they may be the same or different.

[0162] The (c) polyglycerol fatty acid ester can be present in the aqueous phase of the composition according to the invention.

[0163] The (c) polyglycerol fatty acid ester may be selected from monoesters, diesters, and trimers of straight-chain or branched, saturated or unsaturated fatty acids, wherein the fatty acids are preferably saturated fatty acids containing 2 to 28 carbon atoms, preferably 4 to 20 carbon atoms, and more preferably 6 to 12 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, decanoic acid, caprylic acid, and myristic acid.

[0164] Preferably, (c) the polyglycerol fatty acid ester has a polyglycerol portion derived from 2 to 6 glycerols, more preferably 4 to 6 glycerols, and even more preferably 5 or 6 glycerols. In other words, preferably, (c) the polyglycerol fatty acid ester comprises 2 to 6 polyglycerol units, more preferably 4 to 6 polyglycerol units, and even more preferably 5 or 6 polyglycerol units.

[0165] In the composition according to the invention, (c) polyglycerol fatty acid ester is present in the aqueous phase. Therefore, (c) polyglycerol fatty acid ester is relatively hydrophilic.

[0166] Therefore, the polyglycerol fatty acid ester (c) may have an HLB (hydrophilic-lipophilic balance) value of 8.0 or greater, preferably 9.0 or greater, and more preferably 10.0 or greater. If two or more polyglycerol fatty acid esters are used, the HLB value is determined by a weighted average of the HLB values ​​of all polyglycerol fatty acid esters.

[0167] The term HLB (“hydrophilic-lipophilic balance”) is well known to those skilled in the art and reflects the ratio between the hydrophilic and lipophilic portions of a molecule. The HLB value can be calculated using the following 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.

[0168] The polyglycerol fatty acid ester (c) may be selected from polyglycerol fatty acid monoesters.

[0169] Polyglycerol fatty acid monoesters may have HLB values ​​of 8.0 to 17.0, preferably 9.0 to 16.0, and more preferably 10.0 to 15.0. If two or more polyglycerol fatty acid monoesters are used, the HLB value is determined by a weighted average of the HLB values ​​of all polyglycerol fatty acid monoesters.

[0170] Polyglycerol fatty acid monoesters may be selected from PG4 oleate (HLB: 8.8), PG4 laurate (HLB: 10.3), PG4 isostearate (HLB: 8.2), PG5 laurate (HLB: 10.5), PG6 isostearate (HLB: 10.8), PG4 caprylate (HLB: 14), PG4 decanoate (HLB: about 15), PG5 myristate (HLB: 15.4), PG5 stearate (HLB: 15), PG5 oleate (HLB: 12.2), PG6 caprylate (HLB: 14.6), PG6 decanoate (HLB: 13.1), PG6 laurate (HLB: 14.1), and mixtures thereof.

[0171] Preferably, the (c) polyglycerol fatty acid ester is selected from polyglycerol fatty acid diesters.

[0172] The polyglycerol fatty acid diester may have an HLB value of 8.0 to 13.0, preferably 9.0 to 12.0, and more preferably 10.0 to 11.0. If two or more polyglycerol fatty acid diesters are used, the HLB value is determined by a weighted average of the HLB values ​​of all polyglycerol fatty acid diesters.

[0173] Polyglycerol fatty acid diesters may be selected from PG-6 distearate (HLB: 8), PG-6 dioleate (HLB: 9.8), PG-6 didecanoate (HLB: 10.2) and mixtures thereof.

[0174] For example, Sunsoft Q-102H-C, sold by Taiyo Kagaku Co., Ltd., can be used as a PG6 didecanoate. For example, Sunsoft Q-172H-C, sold by Taiyo Kagaku Co., Ltd., can be used as a PG6 dioleate. For example, Emalex DSG-6, sold by Nihon Emulsion Co., Ltd., can be used as a PG6 distearate.

[0175] The amount of (c) polyglycerol fatty acid ester in the aqueous phase of the composition according to the invention may be 0.005% by weight or more, preferably 0.01% by weight or more, and more preferably 0.05% by weight or more, relative to the total weight of the aqueous phase.

[0176] The amount of (c) polyglycerol fatty acid ester in the aqueous phase of the composition according to the invention may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the aqueous phase, provided that the amount of (c) polyglycerol fatty acid ester is not zero.

[0177] The amount of (c) polyglycerol fatty acid ester in the aqueous phase of the composition according to the invention may be 0.005% to 1% by weight, preferably 0.01% to 0.5% by weight, and more preferably 0.05% to 0.1% by weight relative to the total weight of the aqueous phase.

[0178] The amount of (c) polyglycerol fatty acid ester in the composition according to the invention may be 0.001% by weight or more, preferably 0.005% by weight or more, and more preferably 0.01% by weight or more, relative to the total weight of the composition.

[0179] The amount of (c) polyglycerol fatty acid ester in the composition according to the invention may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the composition, provided that the amount of (c) polyglycerol fatty acid ester is not zero.

[0180] The amount of (c) polyglycerol fatty acid ester in the composition according to the invention may be from 0.001% to 1% by weight, preferably from 0.005% to 0.5% by weight, and more preferably from 0.01% to 0.1% by weight relative to the total weight of the composition.

[0181] (water)

[0182] The composition according to the invention comprises (d) water.

[0183] The water in (d) can form an aqueous phase of the composition according to the invention.

[0184] The amount of water (d) in the aqueous phase of the composition according to the invention may be 40% by weight or more, preferably 45% by weight or more, and more preferably 50% by weight or more, relative to the total weight of the aqueous phase.

[0185] The amount of water (d) in the aqueous phase of the composition according to the invention may be 99% by weight or less, preferably 98% by weight or less, and more preferably 97% by weight or less, relative to the total weight of the aqueous phase, provided that the amount of water (d) is not zero.

[0186] The amount of water (d) in the aqueous phase of the composition according to the invention can be from 40% to 99% by weight, preferably from 45% to 98% by weight, and more preferably from 50% to 97% by weight relative to the total weight of the aqueous phase.

[0187] The amount of water (d) in the composition according to the invention may be 35% by weight or more, preferably 40% by weight or more, and more preferably 45% by weight or more, relative to the total weight of the composition.

[0188] The amount of water (d) in the composition according to the invention may be 95% by weight or less, preferably 90% by weight or less, and more preferably 85% by weight or less, relative to the total weight of the composition, provided that the amount of water (d) is not zero.

[0189] The amount of water (d) in the composition according to the invention can be from 35% to 95% by weight, preferably from 40% to 90% by weight, and more preferably from 45% to 85% by weight relative to the total weight of the composition.

[0190] (Aromatic ketone compounds)

[0191] The compositions according to the invention may contain at least one aromatic ketone compound. If two or more aromatic ketone compounds are used, they may be the same or different.

[0192] The aromatic ketone compound can be present in the aqueous phase of the composition according to the invention.

[0193] The aromatic ketone compound is represented by the following chemical formula (I):

[0194]

[0195] in

[0196] 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, and

[0197] R represents C1-C6 alkyl or aryl.

[0198] As C1-C6 alkyl groups, examples include methyl, ethyl, and propyl. Methyl is preferred.

[0199] As C1-C6 alkoxy groups, examples include methoxy, ethoxy, and propoxy. Methoxy is preferred.

[0200] As an aryl group, examples include phenyl, substituted phenyl, naphthyl, and substituted naphthyl. As a substituent, hydroxyl and C1-C6 alkyl groups such as methyl can be mentioned. Phenyl is preferred.

[0201] Preferably, R in the above chemical formula (I) represents methyl, ethyl or phenyl, preferably methyl or phenyl, and more preferably methyl.

[0202] As aromatic ketone compounds, examples can be mentioned, such as:

[0203] 2-Hydroxyacetophenone,

[0204] 3-Hydroxyacetophenone,

[0205] 4-Hydroxyacetophenone,

[0206] 2,5-Dihydroxyacetophenone

[0207] 2,6-Dihydroxyacetophenone

[0208] 4-Hydroxy-3-methoxyacetophenone,

[0209] 3,4,5-Trihydroxyacetophenone

[0210] 2′,2′-Dihydroxybenzophenone,

[0211] 2-Hydroxybenzophenone

[0212] 2,2′,4,4′-Tetrahydroxybenzophenone, and

[0213] 3,4,2′,4′,6′-Pentahydroxybenzophenone.

[0214] Preferably, the aromatic ketone compound is hydroxyacetophenone, more preferably monohydroxyacetophenone, and even more preferably 4-hydroxyacetophenone.

[0215] The amount of aromatic ketone compounds in the aqueous phase of the composition according to the invention may be 0.005% by weight or more, preferably 0.01% by weight or more, and more preferably 0.05% by weight or more, relative to the total weight of the aqueous phase.

[0216] The amount of aromatic ketone compound in the aqueous phase of the composition according to the invention may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the aqueous phase, provided that the amount of aromatic ketone compound is not zero.

[0217] The amount of aromatic ketone compound in the aqueous phase of the composition according to the invention can be from 0.005% to 1% by weight, preferably from 0.01% to 0.5% by weight, and more preferably from 0.05% to 0.1% by weight relative to the total weight of the aqueous phase.

[0218] The amount of aromatic ketone compounds in the compositions according to the invention may be 0.001% by weight or more, preferably 0.005% by weight or more, and more preferably 0.01% by weight or more, relative to the total weight of the composition.

[0219] The amount of aromatic ketone compound in the composition according to the invention may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the composition, provided that the amount of aromatic ketone compound is not zero.

[0220] The amount of aromatic ketone compound in the composition according to the invention may be from 0.001% to 1% by weight, preferably from 0.005% to 0.5% by weight, and more preferably from 0.01% to 0.1% by weight relative to the total weight of the composition.

[0221] (Citrate)

[0222] The compositions according to the invention may contain at least one citrate ester. If two or more citrate esters are used, they may be the same or different.

[0223] The citrate ester can be present in the aqueous phase of the composition according to the invention.

[0224] The citrate ester can be represented by the following chemical formula (I):

[0225]

[0226] in

[0227] R1, R2, and R3 independently represent hydrogen atoms, saturated or unsaturated, straight-chain or branched C1-C atoms. 30 Hydrocarbon group, or saturated or unsaturated cyclic C3-C 30A hydrocarbon group, wherein at least one of R1, R2, and R3 is not a hydrogen atom, and

[0228] R4 represents a hydrogen atom or an R′4-CO- group, where R′4 represents a saturated or unsaturated, straight-chain or branched C1-C8 hydrocarbon group, or a saturated or unsaturated cyclic C3-C8 hydrocarbon group.

[0229] Preferably, R1, R2, and R3 are all saturated or unsaturated, straight-chain or branched C1-C. 30 Hydrocarbon group, either saturated or unsaturated cyclic C3-C 30 Hydrocarbon group, more preferably saturated or unsaturated straight-chain or branched C1-C 30 Hydrocarbon groups, and even more preferably straight-chain or branched C1-C groups. 30 alkyl.

[0230] Preferably, R4 is a hydrogen atom or an R′4-CO- group, wherein R′4 represents a saturated or unsaturated, straight-chain or branched C1-C8 hydrocarbon group, more preferably a hydrogen atom or an R′4-CO- group, wherein R′4 represents a straight-chain or branched C1-C8 alkyl group, and even more preferably a hydrogen atom or an R′4-CO- group, wherein R′4 represents a methyl group.

[0231] Preferably, the citrate is selected from triethyl citrate, tributyl citrate, trioctyl citrate, acetylated triethyl citrate, acetylated tributyl citrate, tri(2-ethylhexyl) citrate and mixtures thereof, more preferably triethyl citrate, tributyl citrate, acetylated triethyl citrate, acetylated tributyl citrate and mixtures thereof, and even more preferably ethyl citrate.

[0232] The amount of citrate in the aqueous phase of the composition according to the invention may be 0.1% by weight or more, preferably 0.5% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the aqueous phase.

[0233] The amount of citrate in the aqueous phase of the composition according to the invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less relative to the total weight of the aqueous phase, provided that the amount of citrate is not zero.

[0234] The amount of citrate in the aqueous phase of the composition according to the invention can be from 0.1% to 15% by weight, preferably from 0.5% to 10% by weight, and more preferably from 1% to 5% by weight, relative to the total weight of the aqueous phase.

[0235] The amount of citrate in the composition according to the invention may be 0.1% by weight or more, preferably 0.5% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the composition.

[0236] The amount of citrate in the composition according to the invention may be 15% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less, relative to the total weight of the composition, provided that the amount of citrate is not zero.

[0237] The amount of citrate in the composition according to the invention may be from 0.1% to 15% by weight, preferably from 0.5% to 10% by weight, and more preferably from 1% to 5% by weight, relative to the total weight of the composition.

[0238] (Active ingredients in cosmetics)

[0239] The compositions according to the present invention may contain at least one cosmetic active ingredient. A single type of cosmetic active ingredient may be used, or two or more different types of cosmetic active ingredients may be used in combination.

[0240] The active ingredient in the cosmetic product is preferably water-insoluble or oil-insoluble.

[0241] The amount of cosmetic active ingredient in the composition according to the invention may be 0.1% by weight or more, preferably 0.5% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the composition.

[0242] The amount of cosmetic active ingredient in the composition according to the invention may be 30% by weight or less, preferably 25% by weight or less, and more preferably 20% by weight or less relative to the total weight of the composition, provided that the amount of cosmetic active ingredient is not zero.

[0243] The amount of cosmetic active ingredient in the composition according to the invention can be from 0.1% to 30% by weight, preferably from 0.5% to 25% by weight, and more preferably from 1% to 20% by weight, relative to the total weight of the composition.

[0244] (Another surfactant)

[0245] The compositions according to the invention may contain at least one additional surfactant other than (c) polyglycerol fatty acid ester. If two or more additional surfactants are used, they may be the same or different.

[0246] However, it may be preferable to use a smaller amount of the additional surfactant.

[0247] The amount of the additional surfactant may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.3% by weight or less, relative to the total weight of the composition according to the invention. Particularly preferred is that the composition according to the invention does not contain any additional surfactant.

[0248] (Other ingredients)

[0249] The compositions according to the invention may also contain at least one optional or additional ingredient.

[0250] The amount of the optional or additional ingredients is not limited, but may be from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the composition according to the invention.

[0251] The optional or additional ingredients may be selected from anionic polymers, cationic polymers, nonionic polymers or amphoteric polymers; organic or inorganic UV filters; peptides and their derivatives; protein hydrolysates; swelling agents; penetrants; thickeners; suspensions; chelating agents; opacifiers; dyes; vitamins or provitamins; fragrances; preservatives, preservative aids, stabilizers; and mixtures thereof.

[0252] The compositions according to the invention may contain one or more cosmetically usable organic solvents, which may be alcohols: particularly monohydric alcohols such as ethanol, isopropanol, benzyl alcohol, and phenethyl 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 ether, ethylene glycol monoethyl ether, and ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, and propylene glycol monobutyl ether, as well as butylene glycol monomethyl ether, butylene glycol monoethyl ether, and butylene glycol monobutyl ether.

[0253] The organic solvent may be present at a concentration of 0.01% to 20% by weight, preferably 0.1% to 15% by weight, and more preferably 1% to 10% by weight relative to the total weight of the composition.

[0254] The pH of the composition according to the invention can be controlled. The pH can be, for example, 3 to 11, preferably 3.5 to 9, and more preferably 4 to 7. The pH can be adjusted to the desired value using at least one acidifying agent and / or at least one alkalizing agent.

[0255] The acidifier can be, for example, an inorganic acid or an organic acid, such as hydrochloric acid, phosphoric acid, carboxylic acid, such as tartaric acid, citric acid, lactic acid, or sulfonic acid.

[0256] The alkalizing agent can be, for example, ammonium hydroxide, alkali metal hydroxide, alkaline earth metal hydroxide, alkali metal carbonate, alkanolamine such as monoethanolamine, diethanolamine and triethanolamine, and their derivatives, preferably sodium hydroxide or potassium hydroxide, and compounds of the following formula:

[0257]

[0258] in

[0259] R represents an alkylene group optionally substituted with a hydroxyl group or a C1-C4 alkyl group, such as propylene, and R1, R2, R3, and R4 independently represent a hydrogen atom, an alkyl group, or a C1-C4 hydroxyalkyl group, exemplified by 1,3-propanediamine and its derivatives. Arginine, urea, and monoethanolamine may be preferred.

[0260] The acidifier or alkalizer may be present in an amount of less than 5% by weight, preferably 1% by weight or less, and more preferably 0.1% by weight or less relative to the total weight of the composition.

[0261] (form)

[0262] The composition according to the invention may have two visually distinct phases. One of the two phases is an oil phase, and the other is an aqueous phase.

[0263] The amount of oil phase in the composition according to the invention may be 10% by weight or more, preferably 20% by weight or more, and more preferably 30% by weight or more, relative to the total weight of the composition.

[0264] The amount of oil phase in the composition according to the invention may be 80% by weight or less, preferably 70% by weight or less, and more preferably 60% by weight or less, relative to the total weight of the composition, provided that the amount of oil phase is not zero.

[0265] The amount of oil phase in the composition according to the invention can be from 10% to 80% by weight, preferably from 20% to 70% by weight, and more preferably from 30% to 60% by weight relative to the total weight of the composition.

[0266] As described above, the oil phase comprises at least (a) at least one ester oil and (b) at least one hydrocarbon oil.

[0267] The amount of aqueous phase in the composition according to the invention may be 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the composition.

[0268] The amount of aqueous phase in the composition according to the invention may be 90% by weight or less, preferably 80% by weight or less, and more preferably 70% by weight or less, relative to the total weight of the composition, provided that the amount of aqueous phase is not zero.

[0269] The amount of aqueous phase in the composition according to the invention can be 20% to 90% by weight, preferably 30% to 80% by weight, and more preferably 40% to 70% by weight relative to the total weight of the composition.

[0270] As described above, the aqueous phase comprises at least (c) at least one polyglycerol fatty acid ester and (d) water.

[0271] In addition, the aqueous phase may contain at least one additional hydrophilic component. In one embodiment, the aqueous phase may contain at least one pH adjuster, such as an acid and a base, and / or at least one salt thereof, such as an alkali metal salt thereof.

[0272] When mixed, the composition according to the invention can be transformed into a single-phase composition. The composition according to the invention, after mixing, can be in the form of an O / W or W / O type, preferably an O / W or W / O liquid composition, and more preferably an O / W or W / O emulsion.

[0273] If the specific gravity of the oil phase is less than that of the water phase, then in the composition according to the invention, the oil phase exists on top of the water phase. Typically, at rest, the oil phase exists on top of the water phase because the specific gravity of oil is generally less than that of water.

[0274] The weight ratio of oil phase to water phase can be 60:40 to 10:90, preferably 50:50 to 10:90, and more preferably 40:60 to 10:90.

[0275] (preparation)

[0276] The composition according to the invention can be prepared by: forming an oil phase by mixing (a) an ester oil and (b) a hydrocarbon oil, or forming an oil phase by mixing components including (a) an ester oil and (b) a hydrocarbon oil for the oil phase; forming an aqueous phase by mixing (c) a polyglycerol fatty acid ester and (d) water, or forming an aqueous phase by mixing components including (c) a polyglycerol fatty acid ester and (d) water for the aqueous phase; and combining the oil phase with the aqueous phase.

[0277] For example, the composition according to the invention can be prepared by a method comprising the following steps:

[0278] (i) Mixing

[0279] (a) at least one ester oil,

[0280] (b) at least one hydrocarbon oil,

[0281] With at least one optional component to form an oil phase;

[0282] (ii) Mixing

[0283] (c) at least one polyglycerol fatty acid ester; and

[0284] (d) Water,

[0285] With at least one optional component to form an aqueous phase; and

[0286] (iii) Combine the oil phase with the water phase.

[0287] The mixing step can be performed using any conventional method.

[0288] It is preferable to perform the step of combining the oil phase and the aqueous phase gently, so that the oil phase and the aqueous phase are slowly poured into containers such as packaging or glassware.

[0289] The material of the container is not limited. For example, the material of the container (such as packaging or utensils) can be inorganic materials such as glass and metal, organic materials such as resins and plastics, and combinations thereof. The resin can be selected from thermoplastic resins such as polyolefins and polyesters (e.g., polyethylene terephthalate or PET). Preferably, the material is transparent or translucent.

[0290] [Uses and Methods]

[0291] When using the composition according to the invention, it is mixed, for example, by hand-cranking (shaking). After mixing the composition according to the invention, the composition can form a single-phase composition. The single-phase composition can be applied to keratin substances to provide a targeted cosmetic effect.

[0292] The keratin material can be skin, nails, mucous membranes such as lips, or keratin fibers such as eyebrows and eyelashes.

[0293] The compositions according to the invention can preferably be used as cosmetic compositions, more preferably as cleansing cosmetic compositions, and even more preferably as cleansing cosmetic compositions for skin and eyelashes.

[0294] The compositions according to the present invention can provide cosmetic effects, such as makeup removal.

[0295] The compositions according to the invention also provide a good texture, such as a smooth touch, and therefore can provide a smooth skin finish.

[0296] The composition according to the invention can be comfortable because it can be less irritating and it can be gentle on the skin, especially on sensitive skin such as the skin around the eyes.

[0297] The skin described here encompasses facial skin, neck skin, and scalp. The compositions according to the invention can also be used on mucous membranes, such as the lips.

[0298] The compositions according to the invention can be used as is (as an external product) or by impregnation into a porous substrate such as a nonwoven fabric, preferably made of cellulose fibers such as cotton.

[0299] In particular, the compositions according to the invention can be intended for application to keratinous substances such as skin, lips, eyebrows, and eyelashes. Therefore, the compositions according to the invention can be used for cosmetic applications targeting keratinous substances such as skin, lips, eyebrows, and eyelashes, preferably skin and eyelashes.

[0300] The compositions according to the invention can be used for caring for or cleansing keratinous substances, rather than for making up keratinous substances. Preferably, the compositions according to the invention are used in skin care products such as lotions, or cleansing products such as makeup removers, rather than in makeup products such as foundations. Preferably, the compositions according to the invention do not contain iron oxide, or contain iron oxide in an amount of 0.5% by weight or less, more preferably 0.2% by weight or less, or even more preferably 0.1% by weight or less relative to the total weight of the compositions according to the invention.

[0301] The cosmetic method for keratin substances according to the present invention may include at least the following steps:

[0302] Mixing the compositions according to the invention to form a single-phase composition; and

[0303] The single-phase composition is applied to a keratin material.

[0304] The single-phase composition does not have two visually distinct phases. Instead, the single-phase composition has a single phase, typically an emulsion phase. The emulsion phase may not be transparent, but it may be translucent or opaque.

[0305] This invention may involve:

[0306] (b) at least one hydrocarbon oil

[0307] Used in a two-phase composition to enhance the makeup-removing ability of a single-phase composition prepared by mixing the two-phase composition, the two-phase composition comprising an oil phase and an aqueous phase, the oil phase comprising (a) at least one ester oil, the aqueous phase comprising (c) at least one polyglycerol fatty acid ester and (d) water, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition.

[0308] This invention may relate to:

[0309] (a) at least one ester oil

[0310] Used in a two-phase composition to enhance the smoothness of a single-phase composition prepared by mixing the two-phase composition during application, the two-phase composition comprising an oil phase and an aqueous phase, the oil phase comprising (b) at least one hydrocarbon oil, the aqueous phase comprising (c) at least one polyglycerol fatty acid ester and (d) water, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition.

[0311] This invention may relate to:

[0312] (a) at least one ester oil

[0313] Used in a two-phase composition to reduce the demulsification rate of a single-phase composition prepared by mixing the two-phase composition, the two-phase composition comprising an oil phase and an aqueous phase, the oil phase comprising (b) at least one hydrocarbon oil, the aqueous phase comprising (c) at least one polyglycerol fatty acid ester and (d) water, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition.

[0314] This invention may relate to:

[0315] (c) at least one polyglycerol fatty acid ester

[0316] Used in two-phase compositions to enhance the cleanliness of packaging comprising a single-phase composition prepared by mixing the two-phase composition, the two-phase composition comprising an oil phase and an aqueous phase, the oil phase comprising (a) at least one ester oil and (b) at least one hydrocarbon oil, the aqueous phase comprising (d) water, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition.

[0317] The above description of components (a) to (d) in the composition according to this application is applicable to components (a) to (d) in the use according to the invention.

[0318] Example

[0319] The invention will be described in more detail by way of examples. However, these examples should not be construed as limiting the scope of the invention. The following examples are given as non-limiting descriptions within the scope of the invention.

[0320] [Examples 1-6 and Comparative Examples 1-4]

[0321] The following compositions according to Examples 1-6 and Comparative Examples 1-4 shown in Table 1 were prepared by mixing the ingredients shown in Table 1 below.

[0322] (1) The components of the oil phase formulation (OP formulation in Table 1) are mixed at about 25°C to form a homogeneous mixture of oil phase components;

[0323] (2) The components of the aqueous phase formulation (AP formulation in Table 1) are mixed at approximately 60°C to form a homogeneous mixture of the aqueous phase formulation components; and

[0324] (3) The above mixtures are poured into the packaging in the order of aqueous phase formulation components, followed by oil phase formulation components, to mix them and obtain each composition.

[0325] For Examples 1-5 and Comparative Examples 1-3, the actual mixing weight ratio of the oil phase formulation to the aqueous phase formulation was 13.5:86.5. For Example 6 and Comparative Example 4, the actual mixing weight ratio of the oil phase formulation to the aqueous phase formulation was 50:50.

[0326] It should be noted that "hydroxyacetophenone" refers to 4-hydroxyacetophenone.

[0327] The numerical values ​​of the components shown in Table 1 are all based on "weight %" as active materials.

[0328]

[0329]

[0330] [evaluate]

[0331] The compositions of Examples 1-6 and Comparative Examples 1-4 are evaluated as follows.

[0332] (Makeup removal ability)

[0333] The five team members each applied mascara (MAYBELLINE Volum'Express Hypercurl Waterproof N 01 Black) to their eyelashes using a brush with a total of 40 strokes (each time, the brush was dipped into the bottle containing the mascara product).

[0334] Shake 4 ml of each of the compositions according to Examples 1-6 and Comparative Examples 1-4 to form an emulsion. Apply the emulsion to the skin around the eyes by massaging in a circular motion around the eyes for 30 seconds using a cotton pad.

[0335] The panel members rated the makeup removal ability on a scale of 1 (very poor) to 5 (excellent), and categorized the average ratings according to the following criteria.

[0336] Excellent (5.0 to 4.0): No mascara residue was observed.

[0337] Good (3.9 to 3.0): Almost no mascara residue was observed.

[0338] Poor (2.9 to 2.0): Slight mascara residue was observed.

[0339] Range (1.9 to 1.0): Mascara residue was observed.

[0340] The results are shown in Table 2.

[0341] (transparency)

[0342] The transparency of the compositions according to Examples 1-6 and Comparative Examples 1-4 immediately after preparation (before shaking) was checked according to the following criteria.

[0343] Excellent: Transparent

[0344] Good: Slightly translucent

[0345] Poor: Semi-transparent

[0346] Range: Opaque

[0347] The results are shown in Table 2.

[0348] (Transparency after shaking)

[0349] The transparency of the compositions according to Examples 1-6 and Comparative Examples 1-4 was checked according to the following criteria after shaking at 4°C for one week.

[0350] Excellent: Transparent

[0351] Good: Slightly translucent

[0352] Poor: Semi-transparent

[0353] Range: Opaque

[0354] The results are shown in Table 2.

[0355] (The sediment on the interface)

[0356] The presence of precipitation at the interface between the oil and water phases of the compositions according to Examples 1-6 and Comparative Examples 1-4 was examined after shaking at 4°C for one week.

[0357] The results are shown in Table 2.

[0358] (Speed ​​of breaking down milk)

[0359] The compositions according to Examples 1-6 and Comparative Examples 1-4 were each placed into clear glass bottles. The clear bottles were shaken very vigorously to form an emulsion. The clear bottles were allowed to stand (remain still), and the time it took for the emulsion to completely disappear to form two visually distinct phases was measured.

[0360] The results are shown in Table 2.

[0361] If the demulsification rate is too fast, the oil / water distribution ratio will change during use, and the cosmetic properties of the composition will also deteriorate. Compositions that require a demulsification time of more than 20 minutes are desirable.

[0362] (Smoothness)

[0363] Shake 4 ml of each of the compositions according to Examples 1-6 and Comparative Examples 1-4 to form an emulsion. Apply the emulsion to the skin around the eyes by massaging in a circular motion around the eyes for 30 seconds using a cotton pad.

[0364] The panel members rated the smoothness of the skin during the above application process on a scale of 1 (very rough = felt friction) to 5 (very smooth), averaged the scores, and classified them according to the following criteria.

[0365] Excellent (5.0 to 4.0): Very smooth during application.

[0366] Good (3.9 to 3.0): Smooth during application.

[0367] Poor (2.9 to 2.0): Unsmooth during application.

[0368] Range (1.9 to 1.0): Very rough during application.

[0369] The results are shown in Table 2.

[0370] (stability)

[0371] The compositions according to Examples 1-6 and Comparative Examples 1-4 were each placed into clear glass bottles. The clear bottles were kept at temperatures of 4°C, 25°C, and 45°C for 2 months. At 4°C, the bottles were kept still or shaken daily.

[0372] Two months later, examine the transparency, color, and odor of each composition and evaluate them according to the following criteria.

[0373] Excellent: Almost identical to production conditions.

[0374] Good: Minor changes in transparency, color, and odor are observed.

[0375] Poor: Changes in transparency, color, and odor are clearly observed. Sedimentation or turbidity is also clearly observed.

[0376] Range: Significant changes in transparency, color, and odor were observed. A state of precipitation or turbidity was also significantly observed.

[0377] The results are shown in Table 2.

[0378] (Packaging cleanliness)

[0379] The compositions according to Examples 1-6 and Comparative Examples 1-4 were each packaged in a clear glass bottle. Each package was shaken very thoroughly. The appearance of the package walls after shaking for 30 minutes was checked according to the following criteria. In the following criteria, the term "residue" refers to droplets or films remaining on the package walls.

[0380] Excellent: No residue was observed on the packaging walls.

[0381] Good: A small amount of residue was observed on the packaging wall.

[0382] Poor: Some residue was observed on the packaging wall.

[0383] Extremely poor: Numerous residues were observed on the packaging walls.

[0384] The results are shown in Table 2.

[0385] Figure 1 The appearance of the package wall is shown after the package containing the composition according to Example 1 has been shaken thoroughly for 30 minutes, with no residue found on the package wall.

[0386] Figure 2 The appearance of the package wall is shown after the package containing the composition according to Comparative Example 3 (with polyglycerol fatty acid esters removed from the composition according to Example 1) has been shaken thoroughly for 30 minutes, with numerous residues observed on the package wall.

[0387] (Summarize)

[0388] Examples 1-6 demonstrate that the use of a combination of ester oils and hydrocarbon oils in the oil phase of a two-phase or biphase composition comprising an oil phase and an aqueous phase, and the use of polyglycerol fatty acid esters in the aqueous phase of the composition, contribute to good makeup removal ability when mixed to form a single-phase composition, providing a smooth feel during application and inhibiting residue on the packaging wall containing the composition, and the single-phase composition can return to its initial state, i.e., a two-phase or biphase composition, at a controlled demulsification rate.

[0389] Examples 1-6 also demonstrate that the compositions according to the invention have good stability, particularly at various temperatures, in the case of mixed or unmixed compositions, as well as transparency, and that single-phase compositions derived from the compositions according to the invention can quickly revert to two-phase compositions with a clean interface between the two reformed phases.

[0390] Comparative Example 1 shows that, compared to Examples 1-5, the use of no hydrocarbon oils degraded the makeup removal ability.

[0391] Comparative Example 2 shows that, compared with Examples 1-5, the absence of any ester oil degraded the smoothness during application and resulted in a very rapid demulsification rate.

[0392] Comparative Examples 3 and 4 show that, compared to Examples 1 and 6, the lack of polyglycerol fatty acid esters degraded the cleanliness of the packaging.

Claims

1. A two-phase composition comprising: The oil phase comprises: (a) at least one ester oil selected from isopropyl myristate or isopropyl palmitate, wherein the amount of (a) ester oil in the oil phase is from 20% to 90% by weight, relative to the total weight of the oil phase, and (b) at least one hydrocarbon oil selected from isohexadecane or isododecane, wherein the amount of the hydrocarbon oil in the oil phase is from 30% to 85% by weight, relative to the total weight of the oil phase; and The aqueous phase, which includes: (c) at least one polyglycerol fatty acid ester selected from polyglycerol fatty acid diesters comprising six polyglycerol units, wherein the amount of (c) the polyglycerol fatty acid ester in the aqueous phase is from 0.01% by weight to 0.5% by weight, relative to the total weight of the aqueous phase. (d) Water, The weight ratio of oil phase to water phase is 40:60 to 10:

90.

2. The composition according to claim 1, wherein the composition is capable of being converted into a single-phase composition.

3. The composition according to claim 2, wherein the single-phase composition is capable of transforming into a two-phase composition.

4. The composition according to claim 1, wherein the amount of water in the composition (d) is from 35% to 95% by weight relative to the total weight of the composition.

5. The composition according to claim 1, wherein the composition is a cosmetic composition.

6. Cosmetic methods for using keratin substances, including: Mix the composition according to any one of claims 1 to 5 to form a single-phase composition; and The single-phase composition is applied to a keratin material.

Images