JP2022134380A - two-phase composition - Google Patents

Abstract

To provide a two-phase composition that is convertible into a single-phase composition when mixed, the single-phase composition can give satisfactory cosmetic effect such as satisfactory makeup removal ability, smooth touch during application, and prevention of residue onto a wall of a package including the composition, and can return to the initial state, that is, the two-phase composition while controlling a de-emulsifying rate.SOLUTION: A two-phase composition includes an oily phase including at least one kind of ester oil (a) and at least one kind of hydrocarbon oil (b), and an aqueous phase including at least one kind of polyglyceryl fatty acid ester (c) and water (d), where the amount of hydrocarbon oil (b) is larger than 5 mass% with respect to the total mass of composition.SELECTED DRAWING: None

Description

The present invention relates to a two-phase composition that has two visually distinct phases and that can be converted to a single-phase composition that can be converted back to a two-phase composition.

Compositions having two visually distinct phases, particularly an aqueous phase and an oily phase that are not emulsified in each other at rest, are commonly referred to as "two-phase" (or bi-phase) compositions. . The two phases are separated at rest, forming a single interface between the two phases instead of forming multiple interfaces between the continuous phase and each discontinuous phase present in the emulsion. The composition differs from an emulsion by the fact that.

Such two-phase compositions have already been described, for example in EP-A-370856 and EP-A-603080, especially for removing make-up from around the eyes.

In use, two-phase compositions require mixing, such as shaking, to form a single-phase composition such as a "temporary" emulsion that is then applied to a keratinous material such as skin. This single-phase composition is required to provide targeted cosmetic benefits such as good make-up removal capability. Single phase compositions are preferably capable of providing a smooth feel during application. On the other hand, after use, ie at rest, the single-phase composition must return to its initial state by transformation into a two-phase composition, known as "phase separation".

Users of the two-phase composition tend to feel more moisturized when the single phase formed by mixing the two-phase composition is maintained for an extended period of time. Therefore, it is important to control the rate of "phase separation", ie demulsification rate.

Another important factor is the cleanliness of the package containing the two-phase composition after mixing the two-phase composition. Conventional two-phase compositions sometimes leave some residue on the walls of the package containing the composition after mixing. The residue gives the user a "dirty" or "not clean" impression, which is undesirable.

Thus, a two-phase composition that has two visually distinct phases when unmixed and that can be converted to a single-phase composition when mixed, wherein the single-phase composition provides good make-up removal properties, etc. can provide good cosmetic effect, smooth feel during application, and prevention of residue on the walls of the package containing the composition, and return to the initial state, i.e., a two-phase composition, while controlling the demulsification rate. There is a need for two-phase compositions that are capable of

EP-A-370856 EP-A-603080

Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics

The object of the present invention is convertible into a single-phase composition when mixed, the single-phase composition provides good cosmetic effects such as good make-up removal, smooth feel during application, and a package containing the composition. It is an object of the present invention to provide a two-phase composition which is capable of preventing residual of on the wall and returning to the initial state, that is, the two-phase composition while controlling the demulsification speed.

The purpose of the above is
(a) at least one ester oil, and
(b) an oily phase comprising at least one hydrocarbon oil;
(c) at least one polyglyceryl fatty acid ester, and
(d) an aqueous phase comprising water, and
(b) the amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition;

The composition according to the invention is convertible into a single-phase composition. A single-phase composition is convertible to a two-phase composition.

(a) Ester oils are saturated or unsaturated linear or branched C ₁ -C ₂₆ aliphatic monoacids or polyacids and saturated or unsaturated linear or branched C ₁ -C ₂₆ oils. Esters with aliphatic monohydric or polyhydric alcohols, preferably saturated linear or branched C ₁ -C ₂₆ aliphatic monoacids and saturated linear or branched C ₁ -C ₂₆ aliphatics It can be selected from esters with monohydric alcohols, more preferably alkyl myristates such as isopropyl myristate and alkyl palmitates such as isopropyl palmitate, and mixtures thereof.

The amount of (a) ester oil in the composition according to the invention is from 2% to 25% by weight, preferably from 5% to 20% by weight, more preferably from 8% to 8% by weight, relative to the total weight of the composition. It can be 15% by weight.

(b) the hydrocarbon oil may be selected from volatile hydrocarbon oils, preferably from volatile branched C8 _- C16 hydrocarbon oils, more preferably isohexadecane, _isodecane , isododecane and It may be selected from the group consisting of mixtures.

The amount of (b) hydrocarbon oil in the composition according to the invention is more than 5% by weight and up to 50% by weight, preferably more than 5% by weight and up to 45% by weight, more preferably, relative to the total weight of the composition. can be greater than 5% and up to 40% by weight.

(c) Polyglyceryl fatty acid esters can be selected from polyglyceryl fatty acid diesters.

(c) polyglyceryl fatty acid esters may contain 2 to 6 polyglyceryl units, preferably 4 to 6 polyglyceryl units, more preferably 5 or 6 polyglyceryl units.

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

The amount of (c) polyglyceryl fatty acid ester in the composition according to the invention is 0.005% to 1%, preferably 0.01% to 0.5%, more preferably 0.01% to 0.5% by weight, relative to the total weight of the aqueous phase of the composition. It may be from 0.05% by mass to 0.1% by mass.

The amount of (d) water in the composition according to the invention is 35% to 95%, preferably 40% to 90%, more preferably 45% to 85% by weight, relative to the total weight of the composition. % by mass.

The weight ratio of the amount of oily phase to the amount of aqueous phase may be from 60:40 to 10:90, preferably from 50:50 to 10:90, more preferably from 40:60 to 10:90.

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

The present invention is also a cosmetic method for keratinous substances, comprising:
mixing a composition according to the present invention to form a single phase composition;
applying a single-phase composition to a keratinous material;
It also relates to methods of beauty, including

Figure 2 shows the appearance of the walls of the package containing the composition according to Example 1 after 30 minutes of vigorous shaking. FIG. 3 shows the appearance of the walls of the package containing the composition according to Comparative Example 3 after 30 minutes of vigorous shaking.

As a result of intensive studies, the present inventors found that when mixed, it can be converted into a single-phase composition, and the single-phase composition has good cosmetic effects such as good makeup-removing ability, smooth touch during application, and It is possible to provide a two-phase composition that can provide resistance to retention on the walls of packages containing the composition and that can return to its initial state, i.e., a two-phase composition, while controlling the rate of demulsification. I discovered that

Accordingly, one aspect of the present invention is
(a) at least one ester oil, and
(b) an oily phase comprising at least one hydrocarbon oil;
(c) at least one polyglyceryl fatty acid ester, and
(d) an aqueous phase comprising water, comprising:
(b) relates to two-phase compositions in which the amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition;

Compositions according to the invention, when unmixed, have two visually distinguishable phases. However, the composition according to the invention can be converted into a single-phase composition when mixed. Single-phase compositions such as emulsions can provide good cosmetic benefits such as good make-up removal, smooth feel during application, and prevention of residue on the walls of packages containing the composition. The single-phase composition can revert to a two-phase composition over time while controlling the rate of demulsification.

Compositions according to the present invention are stable so that the oily and aqueous phases can be kept separate when not mixed. Thus, the two phases of the composition according to the invention can be maintained, such as during storage of the composition according to the invention.

In particular, the composition according to the invention is stable such that the appearance and/or odor of the composition can remain unchanged for a long time under various temperature and storage conditions. For example, compositions according to the invention are stable at low temperatures, with or without shaking. Accordingly, the compositions according to the invention can be stored adequately, especially at low temperatures, even during transportation in motor vehicles, which can cause vibrations and the like.

In use, the composition according to the invention is mixed. The two phases in the composition according to the invention are the oily phase and the aqueous phase. Thus, when mixing the composition according to the invention, one of the two phases is dispersed in the other to form a visually uniform or single phase O/W or W/O emulsion. etc. can form O/W or W/O compositions.

Mixing of the composition according to the invention can easily be carried out. For example, mixing of the composition according to the invention can be carried out by hand shaking. After mixing the composition according to the invention, the composition forms a single phase which can be maintained for a certain period of time without mixing again.

According to the present invention, the single-phase composition formed by the two-phase composition can provide good cosmetic benefits, such as good make-up removal. The composition according to the invention can therefore be used as a cosmetic composition, preferably a cleansing cosmetic composition, more preferably a cleansing cosmetic composition for the skin and eyelashes.

In addition, the single-phase composition formed by the two-phase composition according to the invention can provide good texture, such as smooth feel. In addition, friction can also be reduced. Friction can cause a relatively large loss of the outer layer of the skin's epidermis and can roughen the surface of the skin. Therefore, the composition according to the invention can provide a smooth skin finish.

A single-phase composition formed by a two-phase composition according to the present invention may be less irritating. Thus, compositions according to the invention may be gentle on sensitive skin, such as, for example, the skin, especially the skin around the eyes.

Furthermore, the composition according to the invention can reduce residue or staining on the walls of the package containing the composition after being converted to a single phase composition. It is thus possible to maintain the cleanliness of the package containing the composition according to the invention during use.

Additionally, if the two-phase composition according to the invention before mixing is transparent, the single-phase composition formed by mixing the two-phase composition may also be transparent.

The single-phase composition formed by the two-phase composition according to the present invention undergoes phase separation to re-form two visually distinguishable phases, so that after a specified period of time, the two-phase composition again forms a two-phase composition. can return to

According to the present invention, the demulsification rate of a single-phase composition can be controlled. For example, it is possible to make single-phase compositions that last longer. Thus, compositions according to the invention can provide a more moisturizing sensation. In addition, the pot life of the single-phase composition formed by the two-phase composition according to the invention can be extended, thus enhancing the usefulness of the two-phase composition according to the invention.

Additionally, according to the present invention, the interface between the two reformed phases can be clean such that no precipitates are present at the interface.

The composition according to the invention is particularly useful as a make-up remover, preferably a make-up remover for keratin fibers, more preferably for the eyelashes, ie for mascara.

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

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

(a) Ester oils contribute to the formation of the oily phase of the compositions according to the invention.

As used herein, “oil” means a fatty compound or substance in liquid or paste (non-solid) form at room temperature (25° C.) under atmospheric pressure (760 mmHg). As oils, those commonly used in cosmetics can be used, alone or in combination. These oils may be volatile or non-volatile.

(a) Ester oils are saturated or unsaturated linear or branched C ₁ -C ₂₆ aliphatic monoacids or polyacids and saturated or unsaturated linear or branched C ₁ -C ₂₆ fatty acids. It can be selected from esters with group monohydric alcohols or polyhydric alcohols. The total number of carbon atoms in the ester may be 10 or more, preferably 13, more preferably 16.

(a) Ester oils are selected from esters of saturated linear or branched C ₁ -C ₂₆ aliphatic monoacids and saturated linear or branched C ₁ -C ₂₆ aliphatic monohydric alcohols preferably.

In the case of esters of monohydric alcohols, it is more preferred that at least one of the alcohols and acids from which the esters of the invention are derived is branched.

Among the monoesters of monoacids and monohydric alcohols, dicaprylyl carbonate, alkyl palmitates (ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, etc.), alkyl myristates (isopropyl myristate and ethyl myristate, etc.), stearin Mention may be made of isocetyl acid, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

Esters of C ₄ -C ₂₂ dicarboxylic or tricarboxylic acids with C ₁ -C ₂₂ alcohols, as well as monocarboxylic, dicarboxylic or tricarboxylic acids with non-sugar C ₄ -C ₂₆ dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy Esters with alcohols can also be used.

In particular: 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, diheptane Mention may be made of neopentyl glycol acid and diethylene glycol diisononanoate.

(a) As ester oils, sugar esters and diesters of C ₆ -C ₃₀ , preferably C ₁₂ -C ₂₂ fatty acids can be used. The term "sugar" means an oxygen-bearing hydrocarbon-based compound containing some alcohol functionality, with or without an aldehyde or ketone functionality, and containing at least 4 carbon atoms. Recall that These sugars can be monosaccharides, oligosaccharides or polysaccharides.

Examples of suitable sugars that may be mentioned are sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose and derivatives thereof, especially alkyl derivatives such as methyl Derivatives such as methyl glucose.

Sugar esters of fatty acids are inter alia a group comprising esters or mixtures of esters of the aforementioned sugars with linear or branched, saturated or unsaturated C ₆ -C ₃₀ , preferably C ₁₂ -C ₂₂ fatty acids. You can choose from These compounds, when unsaturated, can have 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

Esters according to this variant can also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

These esters are, for example, oleates, laurates, palmitates, myristates, behenates, coconut fatty acid esters, stearates, linoleates, linolenates, caprates and arachidonates. or mixtures thereof, such as mixed esters of oleopalmitic acid, oleostearic acid, and palmitostearic acid, among others, and pentaerythrityl tetraethylhexanoate.

More particularly mono- and diesters, especially monooleate or dioleate esters of sucrose, glucose or methylglucose, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearins Acid esters are used.

An example that may be mentioned is methyl glucose dioleate, the product sold under the name Glucate® DO by the company Amerchol.

Examples of preferred ester oils include diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexanoate. -ethylhexyl, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate/2-ethylhexyl caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, laurin isohexyl acid, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tri(2-ethylhexanoate), 2-ethylhexyl succinate , diethyl sebacate, and mixtures thereof.

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

The amount of (a) ester oil in the oily phase in the composition according to the present invention is 90% by mass or less, preferably 80% by mass or less, more preferably 70% by mass or less, relative to the total mass of the oily phase. provided that the amount of (a) ester oil is not zero.

The amount of (a) ester oil in the oily phase in the composition according to the invention is between 20% and 90% by weight, preferably between 40% and 80% by weight, more preferably It can be from 60% to 70% by weight.

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, more preferably 8% by weight or more, relative to the total weight of the composition.

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, more preferably 15% by weight or less, relative to the total weight of the composition, However, (a) the amount of ester oil is not zero.

The amount of (a) ester oil in the composition according to the invention is from 2% to 25% by weight, preferably from 5% to 20% by weight, more preferably from 8% to 8% by weight, relative to the total weight of the composition. It can be 15% by weight.

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

(b) the hydrocarbon oil contributes to the formation of the oily phase of the composition according to the invention;

As used herein, “oil” means a fatty compound or substance in liquid or paste (non-solid) form at room temperature (25° C.) under atmospheric pressure (760 mmHg). As oils, those commonly used in cosmetics can be used, alone or in combination. These oils may be volatile or non-volatile.

(b) the hydrocarbon oil may be selected from:
- C6 _{- C16} lower alkanes, linear or branched, optionally cyclic. Examples that may be mentioned are hexane, undecane, dodecane, tridecane and isoparaffins, such as isohexadecane, isododecane and isodecane, and
- straight or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene and hydrogenated polyisobutenes, such as Parleam®, and squalane.

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

(b) the hydrocarbon oil may be selected from volatile hydrocarbon oils, preferably from volatile branched C8 _- C16 hydrocarbon oils, more preferably isohexadecane, _isodecane , isododecane and It may be selected from the group consisting of mixtures.

The amount of (b) hydrocarbon oil in the oily phase in the composition according to the invention is at least 20% by weight, preferably at least 30% by weight, more preferably at least 40% by weight, relative to the total weight of the oily phase. There may be.

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

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

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.

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, more preferably 40% by weight or less, relative to the total weight of the composition. provided, however, that (b) the amount of hydrocarbon oil is not zero.

The amount of (b) hydrocarbon oil in the composition according to the invention is more than 5% by weight and up to 50% by weight, preferably more than 5% by weight and up to 45% by weight, more preferably, relative to the total weight of the composition. can be greater than 5% and up to 40% by weight.

(Ratio of ester oil to hydrocarbon oil)
In order to control the demulsification rate of the single-phase composition formed by the two-phase composition according to the present invention, the weight ratio of (a) the amount of ester oil and (b) the amount of hydrocarbon oil may be adjusted. good.

The mass ratio of (a) amount of ester oil to (b) amount of hydrocarbon oil is 10:90 to 90:10, preferably 20:80 to 80:20, more preferably 30:70 to 70:30. There may be.

On the other hand, ((a) amount of ester oil)/(sum of (a) amount of ester oil and (b) amount of hydrocarbon oil) is 0.2 or more, preferably 0.3 or more, more preferably 0.4 or more, and It may be more preferably 0.5 or more, particularly preferably 0.6 or more.

(a) The higher the amount of ester oil, the slower the rate of demulsification of the single-phase composition formed by the two-phase composition according to the invention.

(additional oil)
The composition according to the invention may comprise at least one additional oil different from (a) the ester oil or (b) the hydrocarbon oil. When two or more additional oils are used, they may be the same or different.

Additional oils may contribute to the formation of the oily phase of the composition according to the invention.

Additional oils can be selected from polar or non-polar oils.

Additional oils may be selected from the group consisting of oils of vegetable or animal origin, artificial triglycerides, silicone oils, fatty alcohols, and mixtures thereof.

Examples of vegetable oils include 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 may be mentioned.

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

Examples of artificial triglycerides include, for example, caprylic caprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri(capric/caprylic)glyceryl (INCI name: caprylic/capric triglyceride) and tri(capric/caprylic/linolenic) glyceryl.

Examples of silicone oils include linear organopolysiloxanes (dimethylpolysiloxane (INCI name: dimethicone), methylphenylpolysiloxane, methylhydrogenpolysiloxane, etc.), cyclic organopolysiloxanes (cyclohexasiloxane, octamethyl cyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), and mixtures thereof.

Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxanes (PDMS), and liquid polyorganosiloxanes containing at least one aryl group.

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

Organopolysiloxanes are defined in more detail in Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press. Organopolysiloxanes may be volatile or nonvolatile.

If volatile, the silicone is more particularly selected from those having a boiling point between 60°C and 260°C, and even more particularly selected from:
(i) cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms; These are, for example, octamethylcyclotetrasiloxane, sold inter alia under the name Volatile Silicone® 7207 by the company Union Carbide or sold under the name Silbione® 70045 V2 by the company Rhodia, the company Union Carbide under the name Volatile Silicone® 7158 by Rhodia, decamethylcyclopentasiloxane sold under the name Silbione® 70045 V5 by Rhodia, and under the name Silsoft 1217 by Momentive Performance Materials dodecamethylcyclopentasiloxane, and mixtures thereof. D' and D":

Mention may also be made of cyclocopolymers of the type dimethylsiloxane/methylalkylsiloxane, etc., such as Silicone Volatile® FZ 3109 sold by Union Carbide.

Mixtures of cyclic polydialkylsiloxanes and organosilicon compounds, such as mixtures of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50), and octamethylcyclotetrasiloxane and oxy-1,1'-bis(2 ,2,2',2',3,3'-Hexatrimethylsilyloxy)neopentane may also be mentioned, and
(ii) a linear volatile polydialkylsiloxane containing from 2 to 9 silicon atoms and having a viscosity at 25° C. of 5×10 ⁻⁶ m ² /s or less; An example is the decamethyltetrasiloxane sold especially under the name SH 200 by the company Toray Silicone. Silicones belonging to this class are also described in an article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicone is measured at 25° C. according to ASTM Standard 445 Appendix C.

Nonvolatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly selected from polydialkylsiloxanes, among which polydimethylsiloxanes containing predominantly trimethylsilyl end groups may be mentioned.

Among these polydialkylsiloxanes the following commercial products may be mentioned without limitation:
- the 47 and 70 047 series of Silbione® oils sold by the company Rhodia or Mirasil® oils, such as the 70 047 V 500 000 oil,
- the Mirasil® series of oils sold by Rhodia,
- oils from the Dow Corning 200 series, e.g. DC200 with a viscosity of 60000 mm ² /s, as well as
- Viscasil® oils from General Electric and certain oils from the SF series from General Electric (SF 96, SF 18).

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

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

Phenyl silicone oils can be selected from phenyl silicones of the formula:

(In the formula,
R ₁ to R ₁₀ are, independently of each other, saturated or unsaturated, linear, cyclic or branched C ₁ to C ₃₀ hydrocarbon-based groups, preferably C ₁ to C ₁₂ hydrocarbon-based groups, and more preferably a C ₁ -C ₆ 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 and
However, the sum of n+m+q is not 0).

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

Phenyl trimethicone (wherein R ₁ to R ₁₀ are methyl, p, q, and n=0 and m=1) is preferred as the phenyl silicone oil.

Organically modified liquid silicones may contain polyethyleneoxy and/or polypropyleneoxy groups, among others. Mention may thus be made of the silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd., and the oils Silwet® L722 and L77 from Union Carbide.

The term "fat" in fatty alcohols means containing a relatively large number of carbon atoms. Thus alcohols with 4 or more, preferably 6 or more, more preferably 12 or more carbon atoms are included within the scope of fatty alcohols. Fatty alcohols may be saturated or unsaturated. Fatty alcohols may be linear or branched.

Fatty alcohols have the structure R-OH, where R contains 4 to 40 carbon atoms, preferably 6 to 30 carbon atoms, more preferably 12 to 20 carbon atoms, saturated and unsaturated. saturated, linear and branched groups). In at least one embodiment, R may be selected from C ₁₂ -C ₂₀ alkyl groups and C ₁₂ -C ₂₀ alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

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

Accordingly, fatty alcohols are linear or branched, saturated or unsaturated C ₆ -C ₃₀ alcohols, preferably linear or branched, saturated C ₆ -C ₃₀ alcohols, more preferably linear It can be selected from saturated C ₁₂ -C ₂₀ alcohols, linear or branched.

The term "saturated fatty alcohol" is used herein to mean alcohols with long aliphatic saturated carbon chains. The saturated fatty alcohol is preferably selected from any linear or branched, saturated C6 _{- C30} fatty alcohol. Among the linear or branched saturated C ₆ -C ₃₀ fatty alcohols, linear or branched saturated C ₁₂ -C ₂₀ fatty alcohols can preferably be used. Any linear or branched saturated C ₁₆ -C ₂₀ fatty alcohol can more preferably be used. Branched C ₁₆ -C ₂₀ fatty alcohols can be used even more preferably.

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 saturated fatty alcohols.

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

It may be preferred that the additional oil is not selected from ether oils.

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

The amount of additional oil in the oily phase in the composition according to the invention may be 40% by weight or less, preferably 35% by weight or less, more preferably 30% by weight or less, relative to the total weight of the oily phase. Good, but the amount of additional oil is not zero.

The amount of additional oil in the oily phase in the composition according to the invention is 3% to 40%, preferably 5% to 35%, more preferably 10% by weight relative to the total weight of the oily phase. % to 30% by weight.

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

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, 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.

The amount of additional oil in the composition according to the invention is from 1% to 30%, preferably from 5% to 25%, more preferably from 10% to 20% by weight relative to the total weight of the composition. %.

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

(c) Polyglyceryl fatty acid esters may be present in the aqueous phase of the compositions according to the invention.

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

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

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

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

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

(c) Polyglyceryl fatty acid esters can be selected from polyglyceryl fatty acid monoesters.

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

Polyglyceryl fatty acid monoester is PG4 oleic acid (HLB: 8.8), PG4 lauric acid (HLB: 10.3), PG4 isostearic acid (HLB: 8.2), PG5 lauric acid (HLB: 10.5), PG6 isostearic acid (HLB: 10.8) , Caprylic acid PG4 (HLB: 14), Capric acid PG4 (HLB: about 15), Myristic acid PG5 (HLB: 15.4), Stearate PG5 (HLB: 15), Oleic acid PG5 (HLB: 12.2), Caprylic acid PG6 (HLB: 14.6), caprate PG6 (HLB: 13.1), laurate PG6 (HLB: 14.1) and mixtures thereof.

(c) Polyglyceryl fatty acid esters are preferably selected from polyglyceryl fatty acid diesters.

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

Polyglyceryl fatty acid diesters can be selected from the group consisting of PG-6 distearate (HLB: 8), PG-6 dioleate (HLB: 9.8), PG-6 dicaprate (HLB: 10.2), and mixtures thereof. .

As PG6 dicaprate, for example, Sunsoft Q-102H-C marketed by Taiyo Kagaku Co., Ltd. can be used. As dioleic acid PG6, Sunsoft Q-172H-C marketed by Taiyo Kagaku Co., Ltd. can be used. Emalex DSG-6 marketed by Nippon Emulsion Co., Ltd. can be used as PG6 distearate.

The amount of (c) polyglyceryl fatty acid ester in the aqueous phase in the composition according to the present invention is at least 0.005% by weight, preferably at least 0.01% by weight, more preferably at least 0.05% by weight relative to the total weight of the aqueous phase. There may be.

The amount of (c) polyglyceryl fatty acid ester in the aqueous phase in the composition according to the present invention is 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. However, the amount of (c) polyglyceryl fatty acid ester is not zero.

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

The amount of (c) polyglyceryl 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, more preferably 0.01% by weight or more, relative to the total weight of the composition. .

The amount of (c) polyglyceryl fatty acid ester in the composition according to the invention may be 1% by weight or less, preferably 0.5% by weight or less, more preferably 0.1% by weight or less, relative to the total weight of the composition. However, the amount of (c) polyglyceryl fatty acid ester is not zero.

The amount of (c) polyglyceryl fatty acid ester in the composition according to the invention is 0.001% to 1%, preferably 0.005% to 0.5%, more preferably 0.005% to 0.5% by weight, relative to the total weight of the aqueous phase of the composition. It may be from 0.01% by mass to 0.1% by mass.

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

(d) Water can form the aqueous phase of the composition according to the invention.

The amount of (d) water in the aqueous phase in the composition according to the invention is at least 40% by weight, preferably at least 45% by weight, more preferably at least 50% by weight, relative to the total weight of the aqueous phase. good too.

The amount of (d) water in the aqueous phase in the composition according to the invention is no more than 99% by weight, preferably no more than 98% by weight, more preferably no more than 97% by weight, relative to the total weight of the aqueous phase. well, provided that (d) the amount of water is not zero.

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

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

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

The amount of (d) water in the composition according to the invention is 35% to 95%, preferably 40% to 90%, more preferably 45% to 85% by weight, relative to the total weight of the composition. % by mass.

(aromatic ketone compound)
A composition according to the invention may comprise at least one aromatic ketone compound. When two or more aromatic ketone compounds are used, they may be the same or different.

Aromatic ketone compounds may be present in the aqueous phase of the composition according to the invention.

Aromatic ketone compounds are represented by the following chemical formula (I):

(In the formula,
R ₅ , R ₆ and R ₇ each independently represent a hydrogen atom, a hydroxyl group, a C ₁ -C ₆ alkyl group, or a C ₁ -C ₆ alkoxy group, with the proviso that R ₅ , R ₆ and R ₇ at least one of represents a hydroxyl group,
R represents a C ₁ -C ₆ alkyl group or an aryl group).

Examples of C ₁ -C ₆ alkyl groups include methyl, ethyl, and propyl groups. Methyl groups are preferred.

Examples of C ₁ -C ₆ alkoxy groups include methoxy, ethoxy, and propoxy groups. A methoxy group is preferred.

Aryl groups include, for example, phenyl groups, substituted phenyl groups, naphthyl groups, and substituted naphthyl groups. Substituents may include hydroxyl groups and C ₁ -C ₆ alkyl groups (such as methyl groups). A phenyl group is preferred.

R in the above chemical formula (I) preferably represents a methyl group, an ethyl group, or a phenyl group, preferably a methyl group or a phenyl group, more preferably a methyl group.

Examples of aromatic ketone compounds include
2-hydroxyacetophenone,
3-hydroxyacetophenone,
4-hydroxyacetophenone,
2,5-dihydroxyacetophenone,
2,6-dihydroxyacetophenone,
4-hydroxy-3-methoxyacetophenone,
3,4,5-trihydroxyacetophenone,
2',2'-dihydroxybenzophenone,
2-hydroxybenzophenone,
2,2',4,4'-tetrahydroxybenzophenone, and
Mention may be made of 3,4,2',4',6'-pentahydroxybenzophenone.

Preferably, the aromatic ketone compound is hydroxyacetophenone, more preferably monohydroxyacetophenone, even more preferably 4-hydroxyacetophenone.

The amount of aromatic ketone compound in the aqueous phase in the composition according to the invention is at least 0.005% by weight, preferably at least 0.01% by weight, more preferably at least 0.05% by weight, relative to the total weight of the aqueous phase. good too.

The amount of aromatic ketone compound in the aqueous phase in the composition according to the invention is 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. However, the amount of aromatic ketone compound is not zero.

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

The amount of aromatic ketone compound in the composition according to the 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.

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

The amount of aromatic ketone compound in the composition according to the invention is 0.001% to 1% by weight, preferably 0.005% to 0.5% by weight, more preferably 0.01% to 0.1% by weight, relative to the total weight of the composition. % by mass.

(citric acid ester)
A composition according to the invention may comprise at least one citrate ester. When two or more citrate esters are used, they may be the same or different.

Citric acid esters may be present in the aqueous phase of compositions according to the invention.

Citric acid esters can be represented by the following chemical formula (I):

(In the formula,
R ₁ , R ₂ and R ₃ are independently hydrogen atoms, saturated or unsaturated linear or branched C ₁ -C ₃₀ hydrocarbon groups, or saturated or unsaturated cyclic C ₃ -C ₃₀ represents a hydrocarbon group, at least one of R ₁ , R ₂ and R ₃ is not a hydrogen atom,
R ₄ represents a hydrogen atom or an R' ₄ -CO- group, R' ₄ is a saturated or unsaturated linear or branched C ₁ -C ₈ hydrocarbon group, or a saturated or unsaturated cyclic represents a C ₃ -C ₈ hydrocarbon group).

R ₁ , R ₂ and R ₃ are all saturated or unsaturated linear or branched C ₁ -C ₃₀ hydrocarbon groups or saturated or unsaturated cyclic C ₃ -C ₃₀ hydrocarbon groups, more preferably. is preferably a saturated or unsaturated linear or branched C ₁ -C ₃₀ hydrocarbon group, even more preferably a linear or branched C ₁ -C ₃₀ alkyl group.

R ₄ is a hydrogen atom or an R' ₄ -CO- group (wherein R' ₄ represents a saturated or unsaturated linear or branched C ₁ -C ₈ hydrocarbon group), more preferably a hydrogen atom or a R'4 _- CO- group, wherein _R'4 represents _a linear or branched C1 _- C8 alkyl group, even more preferably a hydrogen atom or R'4 _- CO- is preferably a group (wherein R' ₄ represents a methyl group).

Citric acid esters include the group consisting of triethyl citrate, tributyl citrate, trioctyl citrate, acetyl triethyl citrate, acetyl tributyl citrate, acetyl tri(2-ethylhexyl) citrate, and mixtures thereof, more preferably citric acid It may be preferred to be selected from the group consisting of triethyl, tributyl citrate, acetyl triethyl citrate, acetyl tributyl citrate and mixtures thereof, even more preferably ethyl citrate.

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

The amount of citrate ester in the aqueous phase in the composition according to the invention may be 15% by weight or less, preferably 10% by weight or less, more preferably 5% by weight or less, relative to the total weight of the aqueous phase. Well, but the amount of citrate is not zero.

The amount of citrate ester in the aqueous phase in the composition according to the invention is between 0.1% and 15% by weight, preferably between 0.5% and 10% by weight, more preferably 1% by weight, relative to the total weight of the aqueous phase. % to 5% by weight.

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

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

The amount of citrate esters in the composition according to the invention is between 0.1% and 15% by weight, preferably between 0.5% and 10% by weight, more preferably between 1% and 5% by weight, relative to the total weight of the composition. %.

(beauty active ingredient)
A composition according to the invention may comprise at least one cosmetically 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.

The cosmetically active ingredient may preferably be either water-insoluble or oil-insoluble.

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

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

The amount of cosmetically active ingredient in the composition according to the invention is 0.1% to 30% by weight, preferably 0.5% to 25% by weight, more preferably 1% to 20% by weight, relative to the total weight of the composition. % range.

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

However, it may be preferred that the amount of additional surfactant is small.

The amount of additional surfactants may be 1% by weight or less, preferably 0.5% by weight or less, more preferably 0.3% by weight or less, relative to the total weight of the composition according to the invention. It is particularly preferred that the compositions according to the invention do not contain additional surfactants.

(other ingredients)
Compositions according to the invention may also comprise at least one optional or additional component.

The amount of optional or additional ingredients is not limited, but is 0.01% to 30% by weight, preferably 0.1% to 20% by weight, more preferably 1% by weight, relative to the total weight of the composition according to the invention. % to 10% by mass.

Optional or additional ingredients include: anionic, cationic, nonionic or amphoteric polymers; organic or inorganic UV-screening agents; peptides and their derivatives; protein hydrolysates; swelling agents; opacifiers; dyes; vitamins or provitamins; fragrances; preservatives, co-preservatives, stabilizers;

The compositions according to the invention may comprise one or more cosmetically acceptable organic solvents, which are alcohols, especially monohydric alcohols such as ethyl alcohol, isopropyl alcohol, benzyl alcohol and phenylethyl alcohol; , 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 ethers, propylene glycol monomethyl, monoethyl, and monobutyl ethers, and Butylene glycol monomethyl, monoethyl, and monobutyl ether.

At this time, the organic solvent is present at a concentration of 0.01% to 20% by weight, preferably 0.1% to 15% by weight, more preferably 1% to 10% by weight, relative to the total weight of the composition. good too.

The pH of compositions according to the invention can be controlled. The pH may be, for example, 3 to 11, preferably 3.5 to 9, 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 basifying agent.

Acidifying agents may be, for example, inorganic or organic acids, such as hydrochloric acid, orthophosphoric acid, carboxylic acids, such as tartaric acid, citric acid, lactic acid, or sulfonic acids.

Basifying agents include, 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 hydroxide or potassium hydroxide, and compounds of the formula:

(In the formula,
R represents alkylene, such as propylene, optionally substituted with hydroxyl or C ₁ -C ₄ alkyl groups, and R ₁ , R ₂ , R ₃ and R ₄ are independently hydrogen atoms, alkyl groups , or C ₁ -C ₄ hydroxyalkyl groups, which may be exemplified by 1,3-propanediamine and its derivatives). Arginine, urea, and monoethanolamine may be preferred.

Acidifying or basifying agents may be present in amounts ranging from less than 5%, preferably 1% or less, more preferably 0.1% or less, relative to the total weight of the composition.

(form)
A composition according to the invention can have two visually distinguishable phases. One of the two phases is the oily phase and the other is the aqueous phase.

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

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

The amount of oily phase in the composition according to the invention is 10% to 80%, preferably 20% to 70%, more preferably 30% to 60% by weight, relative to the total weight of the composition. may be

The oily phase comprises at least (a) at least one ester oil, and (b) at least one hydrocarbon oil, as described above.

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, more preferably 40% by weight or more, relative to the total weight of the composition.

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, more preferably 70% by weight or less, relative to the total weight of the composition, provided that aqueous The amount of phase is not zero.

The amount of aqueous phase in the composition according to the invention is 20% to 90%, preferably 30% to 80%, more preferably 40% to 70% by weight, relative to the total weight of the composition. may be

The aqueous phase comprises at least (c) at least one polyglyceryl fatty acid ester and (d) water, as described above.

In addition, the aqueous phase can contain at least one additional hydrophilic component. In one embodiment, the aqueous phase may comprise at least one pH adjusting agent, such as acids and bases, and/or at least one salt thereof, such as an alkali metal salt thereof.

A composition according to the invention can be converted into a single-phase composition when mixed. The composition according to the invention after mixing is in O/W or W/O form, preferably in the form of an O/W or W/O liquid composition, more preferably in the form of an O/W or W/O emulsion. may

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 is present above the aqueous phase. Typically, at rest, the oily phase resides above the aqueous phase, as the specific gravity of oil tends to be less than that of water.

The weight ratio of the amount of oily phase to the amount of aqueous phase may be from 60:40 to 10:90, preferably from 50:50 to 10:90, more preferably from 40:60 to 10:90.

(preparation)
Compositions according to the present invention are prepared for the oily phase by mixing (a) an ester oil and (b) a hydrocarbon oil or by mixing ingredients comprising (a) an ester oil and (b) a hydrocarbon oil. and for the aqueous phase by mixing (c) the polyglyceryl fatty acid ester and (d) water or mixing the ingredients comprising (c) the polyglyceryl fatty acid ester and (d) water. can be prepared by forming an aqueous phase by and combining the oily phase and the aqueous phase.

For example, a composition according to the invention may
(i)
(a) at least one ester oil, and
(b) at least one hydrocarbon oil,
mixing with at least one optional ingredient to form an oily phase;
(ii)
(c) at least one polyglyceryl fatty acid ester, and
(d) water;
mixing with at least one optional ingredient to form an aqueous phase;
(iii) combining the oily phase and the aqueous phase;
can be prepared by a method comprising

The step of mixing can be performed by any conventional means.

The step of combining the oily and aqueous phases is preferably carried out gently, such as slowly pouring the oily and aqueous phases into a container such as a package or container.

The material of the vessel is not limited. For example, the material of a container such as a package or container may be inorganic such as glass and metal, organic such as resin and plastic, or a combination thereof. The resin can be selected from thermoplastic resins such as polyolefins and polyesters (eg polyethylene terephthalate or PET). The material is preferably transparent or translucent.

[Use and method]
When using the composition according to the invention, it is mixed, for example by hand shaking. After mixing the composition according to the invention, the composition can form a single-phase composition. Single-phase compositions can be applied to keratinous materials to provide targeted cosmetic effects.

The keratinous material may be mucous membranes such as skin, nails, lips, or keratin fibers such as eyebrows and eyelashes.

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

The compositions according to the invention can provide cosmetic benefits such as make-up removal.

Compositions according to the present invention can also provide good texture, such as a smooth feel, and thus provide a smooth skin finish.

Compositions according to the present invention may be less irritating and thus may be comfortable and gentle on sensitive skin such as the skin around the eyes.

Skin, as used herein, includes facial skin, neck skin and scalp. The composition according to the invention can also be used on mucous membranes such as the lips.

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

In particular, the composition according to the invention may be intended for application onto keratinous substances such as the skin, lips, eyebrows and eyelashes. The compositions according to the invention can therefore be used in cosmetic methods for keratinous substances such as skin, lips, eyebrows and eyelashes, preferably skin and eyelashes.

The compositions according to the invention can be used not only for making up keratinous substances, but also for care or cleansing. The compositions according to the invention are preferably used in skin care products such as lotions or cleansing products such as make-up removers, rather than in make-up products such as foundations. Preferably, the composition according to the invention is free of iron oxide or contains no more than 0.5% by weight, more preferably no more than 0.2% by weight, even more preferably no more than 0.2% by weight of iron oxide, relative to the total weight of the composition according to the invention. It is contained in an amount of 0.1% by mass or less.

The cosmetic method for keratinous substances according to the invention comprises at least
mixing a composition according to the present invention to form a single phase composition;
applying a single-phase composition to a keratinous material;
can include

A single-phase composition does not have two visually distinguishable phases. Instead, single-phase compositions have a single phase, which is typically the emulsion phase. The emulsion phase need not be transparent, but can be translucent or opaque.

The present invention
(b) of at least one hydrocarbon oil,
to enhance the makeup-removing ability of a single-phase composition prepared by mixing the two-phase composition,
Use in a two-phase composition comprising (a) an oily phase comprising at least one ester oil and (c) an aqueous phase comprising at least one polyglyceryl fatty acid ester and (d) water,
(b) may relate to uses wherein the amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition;

The present invention
(a) of at least one ester oil,
for enhancing smoothness during application of a single-phase composition prepared by mixing a two-phase composition,
Use in a two-phase composition comprising (b) an oily phase comprising at least one hydrocarbon oil and (c) an aqueous phase comprising at least one polyglyceryl fatty acid ester and (d) water,
(b) may relate to uses wherein the amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition;

The present invention
(a) of at least one ester oil,
for reducing the demulsification rate of a single-phase composition prepared by mixing a two-phase composition,
Use in a two-phase composition comprising (b) an oily phase comprising at least one hydrocarbon oil and (c) an aqueous phase comprising at least one polyglyceryl fatty acid ester and (d) water,
(b) may relate to uses wherein the amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition;

The present invention
(c) of at least one polyglyceryl fatty acid ester,
For enhancing the cleanliness of packages containing single-phase compositions prepared by mixing two-phase compositions,
Use in a two-phase composition comprising (a) an oily phase comprising at least one ester oil and (b) at least one hydrocarbon oil, and (d) an aqueous phase comprising water, wherein
(b) may relate to uses wherein the amount of hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition;

The above explanations for components (a)-(d) in the composition according to the present application are applicable to the above components (a)-(d) in the use according to the invention.

The invention is explained in a more detailed manner by means of examples. However, these examples should not be construed as limiting the scope of the invention. The following examples are presented as non-limiting illustrations of the field of the invention.

(Examples 1-6 and Comparative Examples 1-4)
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 as follows.
(1) the ingredients of the oily phase preparation (OP preparation of Table 1) are mixed at about 25°C to form a homogenous mixture of oily phase ingredients;
(2) mixing the ingredients of the aqueous phase preparation (AP preparation of Table 1) at about 60°C to form a homogeneous mixture of the aqueous phase preparation ingredients;
(3) Pour the above into the package in the order of the aqueous phase preparation ingredients and then the oil phase preparation ingredients and mix them for each composition.

The blending mass ratio of oily phase preparation:aqueous phase preparation was 13.5:86.5 for Examples 1-5 and Comparative Examples 1-3, and 50:50 for Example 6 and Comparative Example 4.

Note that "hydroxyacetophenone" means 4-hydroxyacetophenone.

All numerical values for the amounts of ingredients given in Table 1 are based on "% by weight" as active ingredients.

[evaluation]
The compositions according to Examples 1-6 and Comparative Examples 1-4 were evaluated as follows.

(Makeup removal ability)
Each of the five panelists applied a mascara product (MAYBELLINE Volum'Express Hypercurl Waterproof N 01 Black) to the eyelashes with a total of 40 strokes using a brush (a brush each time and a bottle containing the mascara product. I made up my eyelashes by applying a liquid (soaked in).

4 mL of each composition according to Examples 1-6 and Comparative Examples 1-4 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes by using a cotton sheet by massaging the cotton sheet around the eye in circular motions for 30 seconds.

Panellists rated make-up removal performance on a scale of 1 (very poor) to 5 (excellent) and classified the average ratings according to the following criteria.

Excellent (5.0-4.0): No mascara residue was observed.
Good (3.9-3.0): Almost no mascara residue was observed.
Poor (2.9-2.0): Some mascara residue was observed.
Very Poor (1.9-1.0): Mascara residue was observed.

Table 2 shows the results.

(Transparency)
The clarity of each composition according to Examples 1-6 and Comparative Examples 1-4 as prepared (before shaking) was examined according to the following criteria.

Excellent: Transparent Good: Slightly translucent Poor: Translucent Very poor: Opaque

Table 2 shows the results.

(Transparency after shaking)
After one week of shaking at 4°C, the transparency of each composition according to Examples 1-6 and Comparative Examples 1-4 was examined according to the following criteria.

Excellent: Transparent Good: Slightly translucent Poor: Translucent Very poor: Opaque

Table 2 shows the results.

(precipitate on interface)
Each composition according to Examples 1-6 and Comparative Examples 1-4 was examined for the presence of precipitates on the interface between the oily and aqueous phases after one week of shaking at 4°C.

Table 2 shows the results.

(Demulsification speed)
Each composition according to Examples 1-6 and Comparative Examples 1-4 was filled into a transparent glass bottle. The clear bottle was shaken well to form an emulsion. The clear bottle was allowed to stand (at rest) and the time for the emulsion to completely disappear and two visually distinguishable phases to form was measured.

Table 2 shows the results.

If the rate of demulsification is too fast, the oil/water distribution ratio will change during use and the cosmetic performance of the composition will also deteriorate. Compositions that take more than 20 minutes to demulsify are desirable.

(smoothness)
4 mL of each composition according to Examples 1-6 and Comparative Examples 1-4 was shaken to form an emulsion. The emulsion was applied onto the skin around the eyes by using a cotton sheet by massaging the cotton sheet around the eye in circular motions for 30 seconds.

Panellists rated the smoothness on the skin during application on a scale of 1 (not very smooth = felt friction) to 5 (very smooth), averaged the scores, and categorized according to the following criteria: did.

Excellent (5.0-4.0): Very smooth during application Good (3.9-3.0): Poor smoothness during application (2.9-2.0): Not smooth during application Very poor (1.9-1.0): Very poor during application not smooth

Table 2 shows the results.

(Stability)
Each composition according to Examples 1-6 and Comparative Examples 1-4 was filled into a transparent glass bottle. The clear bottles were kept under temperature conditions of 4°C, 25°C and 45°C for 2 months. At 4°C, the vials were kept stationary or shaken daily.

After two months, each composition was examined for clarity, color, and odor and rated according to the following criteria.

Excellent: Nearly the same condition as when it was produced.
Good: small changes were observed in terms of clarity, color and odor.
Poor: Changes were clearly observed in terms of transparency, color and odor. Either a precipitate or cloudy appearance was also clearly observed.
Very Poor: Significant changes were observed in terms of transparency, color and odor. Either a precipitate or a cloudy appearance was also notably observed.

Table 2 shows the results.

(Cleanliness of package)
Each composition according to Examples 1-6 and Comparative Examples 1-4 was filled into a transparent glass bottle as a package. Shake each package well. The appearance of the package walls 30 minutes after shaking was examined according to the following criteria. The term "residue" in the following criteria means droplets or films left on the walls of the package.

Excellent: No residue was observed on the walls of the package.
Good: A small amount of residue was observed on the walls of the package.
Poor: Some residue was observed on the walls of the package.
Very Poor: A lot of residue was observed on the walls of the package.

Table 2 shows the results.

Figure 1 shows the appearance of the walls of the package containing the composition according to Example 1 after 30 minutes of vigorous shaking, where no residue was found on the walls of the package.

Figure 2 shows the appearance of the walls of the package after 30 minutes of vigorous shaking of the package containing the composition according to Comparative Example 3 (wherein the polyglyceryl fatty acid ester was removed from the composition according to Example 1). Yes, here a lot of residue was observed on the walls of the package.

(Outline)
Examples 1-6, when mixed to form a single-phase composition, contribute to good make-up removal, a smooth feel during application, and no residue on the walls of the package containing the composition, The single-phase composition is capable of returning to its initial state, i.e., a two-phase composition, while controlling the rate of demulsification. Figure 3 shows the use of a combination of hydrogen oil and polyglyceryl fatty acid ester in the aqueous phase.

Examples 1 to 6 also show that the composition according to the invention has good stability, especially good stability under various temperatures, as well as transparency, whether or not the composition is mixed, It also shows that the single-phase composition derived from the composition according to the invention was able to quickly revert to a two-phase composition with a clean interface between the two reformed phases.

Comparative Example 1 shows that compared to Examples 1-5, no hydrocarbon oil was used at all, resulting in lower makeup-removing ability.

Comparative Example 2 shows that the absence of any ester oil resulted in lower smoothness during application and a much faster demulsification rate compared to Examples 1-5.

Comparative Examples 3 and 4 show that, compared to Examples 1 and 6, respectively, the lack of polyglyceryl fatty acid ester reduced the cleanliness of the package.

Claims (15)

(a) at least one ester oil, and
(b) an oily phase comprising at least one hydrocarbon oil;
(c) at least one polyglyceryl fatty acid ester, and
(d) an aqueous phase comprising water, comprising:
A two-phase composition, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition. 2. The composition of claim 1, which is convertible to a single phase composition. 3. The composition of claim 2, wherein said single phase composition is convertible to a two phase composition. The (a) ester oil comprises a saturated or unsaturated linear or branched C ₁ -C ₂₆ aliphatic monoacid or polyacid and a saturated or unsaturated linear or branched C ₁ -C Esters with ₂₆ aliphatic monohydric alcohols or polyhydric alcohols, preferably saturated linear or branched C ₁ -C ₂₆ aliphatic monoacids and saturated linear or branched C ₁ -C ₂₆ fatty acids 4. Esters with group monohydric alcohols, more preferably selected from alkyl myristates such as isopropyl myristate and alkyl palmitates such as isopropyl palmitate, and mixtures thereof. composition. The amount of the (a) ester oil in the composition is 2% to 25% by mass, preferably 5% to 20% by mass, more preferably 8% to 8% by mass, relative to the total mass of the composition. 5. The composition according to any one of claims 1 to 4, which is 15% by weight. Said (b) hydrocarbon oil is selected from volatile hydrocarbon oils, preferably from volatile branched C8 _- C16 hydrocarbon oils, more preferably isohexadecane, _isodecane , isododecane, and mixtures thereof 6. The composition of any one of claims 1-5, selected from the group consisting of: The amount of said (b) hydrocarbon oil in said composition is greater than 5% and up to 50%, preferably greater than 5% and up to 45% by weight, more preferably greater than 5% by weight and up to 45% by weight relative to the total weight of said composition 7. A composition according to any one of claims 1 to 6, which is more than 5% and up to 40% by weight. 8. The composition according to any one of claims 1 to 7, wherein said (c) polyglyceryl fatty acid ester is selected from polyglyceryl fatty acid diesters. 9. Any one of claims 1 to 8, wherein the (c) polyglyceryl fatty acid ester comprises 2 to 6 polyglyceryl units, preferably 4 to 6 polyglyceryl units, more preferably 5 or 6 polyglyceryl units. 13. The composition of claim 1. 10. The method according to any one of claims 1 to 9, wherein the (c) polyglyceryl fatty acid ester is selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 distearate, and mixtures thereof. The described composition. The amount of the (c) polyglyceryl fatty acid ester in the composition is 0.005% to 1% by weight, preferably 0.01% to 0.5% by weight, more preferably 0.01% to 0.5% by weight, relative to the total weight of the aqueous phase of the composition. The composition according to any one of claims 1 to 10, wherein the is between 0.05% and 0.1% by weight. The amount of (d) water in the composition is 35% to 95% by weight, preferably 40% to 90% by weight, more preferably 45% to 85% by weight, relative to the total weight of the composition. 12. The composition according to any one of claims 1 to 11, in % by weight. Claim 1, wherein the weight ratio of the amount of said oily phase: the amount of said aqueous phase is from 60:40 to 10:90, preferably from 50:50 to 10:90, more preferably from 40:60 to 10:90. 13. The composition according to any one of 12 to 13. 14. A composition according to any one of the preceding claims, which is a cosmetic composition, preferably a cleansing cosmetic composition, more preferably a cleansing cosmetic composition for skin and eyelashes. A cosmetic method for keratinous substances, comprising:
mixing the composition of any one of claims 1 to 14 to form a single phase composition;
applying the single-phase composition to a keratinous material;
beauty methods, including;

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