JP2020109056A - Oil-in-water emulsion composition containing ether oil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stable oil-in-water nano- or micro-emulsion composition having good stability in maintaining the state of micro-emulsion.
The present invention provides (a) at least one ether oil, (b) at least one nonionic surfactant, (c) at least one anionic surfactant, and (d) at least one. A composition in the form of an oil-in-water emulsion, which comprises seed betaine and (e) water. The composition according to the invention can have good stability.
[Selection diagram] None

Description

The present invention relates to compositions in the form of oil-in-water emulsions, preferably cosmetic compositions, more preferably cleansing compositions.

Cleansing the skin is very important in the care of the face. Cleansing should be as effective as possible, because of greasy residues such as excessive sebum, residues of cosmetics used on a daily basis, and make-up products, especially water-resistant. Products tend to accumulate in the wrinkles of the skin, plug pores in the skin and lead to the appearance of pimples.

Several types of skin cleansing products are known, such as rinse-off cleansing anhydrous oils and gels, and foaming creams, lotions and gels. For example, JP 2014-122198 discloses a wash-off cosmetic composition in the form of a nano- or microemulsion, which comprises (a) at least one oil, (b) at least one non-oil having an HLB of 7-14. An ionic surfactant, (c) at least one associative polyurethane, (d) at least one polyol, and (e) water, and the amount of (a) oil is based on the total weight of the composition. The range is at least 20% by mass. In addition, U.S. Pat.No. 6,468,551B discloses an oil-in-water microemulsion gel, which comprises (a) a discontinuous oil phase and a continuous aqueous phase, one or more oil-in-water containing no ethylene oxide or propylene oxide. A water-in-oil emulsifier having an emulsifier content of less than 20% by weight relative to the total weight of the microemulsion, the aqueous phase, the oil phase, one or more. Of said oil-in-water emulsifier, optionally one or more water-in-oil emulsifiers, and optionally a mixture of base components comprising one or more further excipients, additives and/or active compounds. (B) the droplets of the discontinuous oil phase are joined together by one or more cross-linking substances and the molecules of the cross-linking substances are separated by a distance between the micro-emulsion droplets. It has at least one hydrophilic region that has sufficient elongation to crosslink, and at least one hydrophobic region that initiates hydrophobic interactions with the microemulsion droplets.

Rinse-free anhydrous oils and gels have a cleansing action mainly due to the forces of the oils present in these formulations. These oils allow the dissolution of fatty residues and the dispersion of makeup pigments. These products are effective and well tolerated. However, they exhibit the drawbacks of being heavy, non-foaming and not imparting a refreshing feel on application, all of which are disadvantageous from a cosmetic point of view.

On the other hand, oil-free foaming creams, lotions and gels have a cleansing action, mainly due to the power of the surfactants contained therein, which action is due to fatty residues and, for example, makeup products. Of the pigment is suspended. They are effective and have a pleasant feel to use, because they are foaming and easy to remove.

Microemulsions (oil-in-water type, water-in-oil type or bicontinuous type) have recently been developed as a substitute for cleansing oil, and their excellent effects on foundations and water-resistant mascara have been highly evaluated. The advantage of microemulsions is that they sometimes show better rinsing ability for the makeup removal effect, which is usually the same. However, maintaining the morphology of a nano or microemulsion over time is generally difficult.

Therefore, there remains a need to provide stable nano- or microemulsion compositions, especially for cleansing compositions that can maintain the state of the microemulsion over time.

JP 2014-122198 U.S. Patent No. 6,468,551B U.S. Pat.No. 5,364,633A U.S. Pat.No. 5,411,744A U.S. Patent Application Publication No. 2008/0200704

Satoshi Tomomasa et al., Oil Chemistry, Volume 37, No. 11 (1988), pages 48-53.

It is an object of the present invention to provide stable oil-in-water nano or microemulsion compositions that have good stability with respect to maintaining the state of the microemulsion.

The above object of the present invention is to
(a) at least one ether oil,
(b) at least one nonionic surfactant,
(c) at least one anionic surfactant,
(d) at least one betaine,
It can be achieved by a composition in the form of an oil-in-water emulsion comprising (e) water.

The oil droplets of the composition may have a volume average particle size of less than 100 nm, preferably less than 90 nm, more preferably less than 80 nm.

(a) Ether oils are dicaprylyl ether, dicapryl ether, dilauryl ether, diisostearyl ether, dioctyl ether, nonyl phenyl ether, dodecyl dimethyl butyl ether, cetyl dimethyl butyl ether, cetyl isobutyl ether, and mixtures thereof. Can be selected.

The amount of (a) ether oil in the composition, relative to the total weight of the composition, is 0.1 to 40% by mass, preferably 1 to 30% by mass, more preferably 3 to 20% by mass. Good.

(b) the nonionic surfactant is
(1) polyglyceryl fatty acid ester, polyoxyalkylenated alkyl glyceride, and a surfactant selected from polyoxyalkylenated fatty ether,
(2) fatty acid or fatty alcohol, mixed ester of carboxylic acid and glycerol,
(3) fatty acid ester of sugar and fatty alcohol ether of sugar,
(4) sorbitan fatty ester and sorbitan oxyalkylenated fatty ester, and a surfactant selected from oxyalkylenated fatty ester,
(5) a block copolymer of ethylene oxide (A) and propylene oxide (B),
(6) polyoxyethylenated (1-40 EO) and polyoxypropyleneated (1-30 PO) alkyl (C ₁₆ -C ₃₀ )ether,
(7) Silicone surfactant, and
(8) It can be selected from these mixtures.

(b) the nonionic surfactant is
- at least one saturated or unsaturated linear or branched C ₈ -C ₂₂ hydrocarbon radical, for example C ₈ -C ₂₂ alkyl or alkenyl group, preferably a C ₈ -C ₁₈ alkyl or alkenyl group, more preferably C ₈ -C ₁₂ alkyl or alkenyl group, at least one, preferably one fatty acid, and 2-12 of glycerol, preferably 2-10 glycerol, more preferably 2 to 8 Polyglycerol fatty acid ester of glycerol,
A polyoxyethylenated alkyl glyceride, for example a polyethylene glycol derivative of a mixture of mono-, di- and tri-glycerides of caprylic acid and capric acid (preferably 2 to 30 ethylene oxide units, more preferably 2 to 20 ethylene oxide units). Units, even more preferably 2-10 ethylene oxide units),
- at least one saturated or unsaturated linear or branched C ₈ -C ₂₂ hydrocarbon radical, for example C ₈ -C ₂₂ alkyl or alkenyl group, preferably a C ₈ -C ₁₈ alkyl or alkenyl group, more preferably C ₈ -C ₁₂ alkyl or alkenyl group, at least one, preferably one fatty alcohol, and 2 to 60 ethylene oxide, preferably 2 to 30 ethylene oxide, more preferably 2 to A polyoxyethylenated fatty ether of 10 ethylene oxides, and
-Can be selected from these mixtures.

The (b) nonionic surfactant may include at least one polyglyceryl fatty acid monoester and at least one polyglyceryl fatty acid diester.

The amount of the (b) nonionic surfactant in the composition is in the range of 0.1 to 30% by mass, preferably 1 to 20% by mass, more preferably 3 to 16% by mass, based on the total mass of the composition. May be

The (c) anionic surfactant may be selected from amino acid-based anionic surfactants.

The (c) anionic surfactant can be represented by the formula (IV).

In the formula,
Z represents a saturated or unsaturated, linear or branched, hydrocarbon group having 8 to 22 carbon atoms,
X is hydrogen or a methyl group,
n is 0 or 1,
Y is _{hydrogen, -CH 3, -CH (CH 3} ) 2, -CH 2 CH (CH 3) 2, -CH (CH 3) CH 2 CH 3, -CH 2 C 6 H 5, -CH 2 C ₂ H ₄ OH, -CH ₂ OH, -CH(OH)CH ₃ , -(CH ₂ ) ₄ NH ₂ , -(CH ₂ ) ₃ NHC(NH)NH ₂ , -CH ₂ C(O)O ^- M ⁺ , -(CH ₂ ) ₂ C(O)OH, -(CH ₂ ) ₂ C(O)O ^- M ⁺ ,
M is a salt-forming cation in which COO is the counter anion, for example sodium, potassium, ammonium or triethanolamine.

The amount of the (c) anionic surfactant in the composition is in the range of 0.01 to 10% by mass, preferably 0.05 to 5% by mass, and more preferably 0.1 to 1% by mass, based on the total mass of the composition. It may be.

(d) Betaine may be selected from trimethylglycine, carnitine, and L-proline betaine or stachydrin.

The amount of (d) betaine in the composition is in the range of 0.01 to 15% by mass, preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass, based on the total mass of the composition.

The amount of water (e) in the composition is in the range of 30 to 90% by mass, preferably 40 to 80% by mass, more preferably 50 to 70% by mass, based on the total mass of the composition.

The compositions according to the invention may be used as such or may be used for cleansing products, preferably skin make-up cleansing products, more preferably body and/or facial make-up cleansing products.

The invention also relates to a method for cleansing keratin materials such as skin, hair, mucous membranes, nails, eyelashes, eyebrows and scalp, which method comprises the step of applying a composition according to the invention to the keratin material. Concerned.

As a result of intensive studies, the present inventors have found that (a) at least one ether oil, (b) at least one nonionic surfactant, (c) at least one anionic surfactant, (d). It has been found that it is possible to provide an oil-in-water nano- or microemulsion composition that can have good stability over time by combining at least one betaine, and (e) water. ..

Therefore, the composition according to the invention comprises
(a) at least one ether oil,
(b) at least one nonionic surfactant,
(c) at least one anionic surfactant,
(d) at least one betaine,
(e) A composition in the form of an oil-in-water emulsion containing water.

The composition according to the invention exhibits good stability with regard to maintaining the state of the nano- or microemulsion, even when left for at least 2 months.

Since the composition according to the present invention comprises (a) ether oil, (b) nonionic surfactant, and (c) anionic surfactant, it can be said that the composition according to the present invention has cleansing ability. ..

In addition, since the composition according to the invention is in the form of a nano- or microemulsion, the composition can show a good appearance that is transparent or slightly translucent (not opaque), which is preferred by consumers.

The composition according to the invention also contains a considerable amount of water, which forms the external phase of the composition in the form of an oil-in-water emulsion, so that the composition according to the invention has a good feel on the skin after use. For example, a refreshing feeling, a smooth feeling, and a moisturizing feeling can be provided.

In the following, the composition, method and use according to the invention will be explained in more detail.

[Composition]
The composition according to the invention may be in the form of a nano or microemulsion.

A "microemulsion" can be defined in two ways: in a broad sense and in a narrow sense. In other words, in some cases ("microemulsion in a narrow sense"), a microemulsion has a ternary system with three components: an oily component, an aqueous component and a surfactant, a thermodynamically stable isotropic single Refers to the liquid phase, and in other cases ("broadly defined microemulsions"), microemulsions are transparent or translucent due to their smaller particle size in a typical thermodynamically unstable emulsion system. It additionally contains an emulsion having a unique appearance (Satoshi Tomomasa et al., Oil Chemistry, Vol. 37, No. 11 (1988), pp. 48-53).

Microemulsions are O/W (oil-in-water) type microemulsions in which oil is solubilized by micelles, W/O (water in oil) type microemulsions in which water is solubilized by reverse micelles, or surfactants. The number of molecular associations becomes infinite, so that it refers to either of the bicontinuous microemulsions in which both the aqueous phase and the oil phase have a continuous structure.

"Nanoemulsion" as used herein means an emulsion characterized by a dispersed phase having a diameter of less than 100 nm, the dispersed phase optionally forming a lamellar liquid crystalline phase at the dispersed/continuous phase interface. It is stabilized by a crown such as (b) a nonionic surfactant and (c) an anionic surfactant. In the absence of certain opacifiers, the transparency of nanoemulsions results from the small diameter of the dispersed phase, which is obtained by mechanical energy, especially by the use of high pressure homogenizers.

Nanoemulsions can be distinguished from microemulsions by their structure. Specifically, the microemulsion is, for example, a thermodynamically formed by (b) nonionic surfactant, (c) anionic surfactant, etc., and (a) ether oil swollen micelles. It is a stable dispersion. Furthermore, microemulsions do not require substantial mechanical energy to prepare.

The composition according to the invention is in the form of an O/W type nano or microemulsion.

The composition according to the invention has a volume average particle size of the oil phase in the form of oil droplets of 100 nm or less, preferably less than 90 nm, more preferably less than 80 nm, for example 10-95 nm, preferably 10-85 nm, more preferably 10 nm. It is preferably in the form of an O/W type nano or microemulsion, which is ~75 nm. The volume average particle diameter of the oil droplets can be measured by, for example, an ELSZ-2000 zeta potential/particle diameter measuring instrument manufactured by Otsuka Electronics Co., Ltd.

The composition according to the invention can have a transparent or slightly translucent appearance, preferably a transparent appearance. The transparent appearance of the composition according to the invention may have a slight blue colour.

Appearance measurements may be made on undiluted compositions. Blanks are determined using distilled water. Clarity may be measured by nephelometry turbidity (eg, using a 2100Q Portable Turbidimeter manufactured by HACH).

The composition according to the invention may preferably have a nephelometric turbidity of less than 150 NTU, preferably less than 100 NTU, more preferably less than 50 NTU.

The viscosity of the composition according to the present invention is not particularly limited, as long as the composition according to the present invention is flowable and does not drip from the keratin substance. Viscosity can be measured at 25° C. with a viscometer or rheometer, preferably with a cone and plate geometry. Preferably, the viscosity of the composition according to the invention may be in the range ¹ to 3000 Pa.s, preferably ¹ to 2000 Pa.s, for example at 25° C. and 1 s ⁻¹ .

The form of the composition according to the present invention is not particularly limited as long as it is in the form of a water-in-oil emulsion, and examples thereof include an aqueous gel and an aqueous solution.

The composition according to the invention comprises (a) at least one ether oil, (b) at least one nonionic surfactant, (c) at least one anionic surfactant, (d) at least one. Of betaine, and (e) water. The components of the composition are described in detail below.

(Ether oil)
The composition according to the invention comprises (a) at least one ethereal oil. A single type of ether oil may be used, but two or more different types of ether oil may be used in combination.

As used herein, the term “oil” means a fatty compound or substance that is in the form of a liquid or paste (non-solid) at room temperature (25° C.) and atmospheric pressure (760 mmHg).

The (a) ether oil may be volatile or non-volatile, and is preferably non-volatile.

As the (a) ether oil, it may be preferable to use a dialkyl ether, for example, one represented by the following formula.
R ¹ -OR ²
In the formula,
Each of R ¹ and R ² is independently linear, branched or cyclic C _{4 to} C ₂₄ alkyl group, preferably C _{6 to} C ₁₈ alkyl group, more preferably C _{8 to} C ₁₂ alkyl. Indicates a group. It may be preferred that R ¹ and R ² are the same.

As a linear alkyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group Examples thereof include groups, nonadecyl groups, eicosyl groups, behenyl groups, docosyl groups, tricosyl groups, and tetracosyl groups.

As a branched alkyl group, 1-methylpropyl group, 2-methylpropyl group, t-butyl group, 1,1-dimethylpropyl group, 3-methylhexyl group, 5-methylhexyl group, 1-ethylhexyl group, 2 -Ethylhexyl group, 1-butylpentyl group, 5-methyloctyl group, 1-ethylhexyl group, 2-ethylhexyl group, 1-butylpentyl group, 5-methyloctyl group, 2-butyloctyl group, isotridecyl group, 2-pentyl group Nonyl group, 2-hexyldecyl group, isostearyl group, 2-heptylundecyl group, 2-octyldodecyl group, 1,3-dimethylbutyl group, 1-(1-methylethyl)-2-methylpropyl group, 1 ,1,3,3-Tetramethylbutyl group, 3,5,5-trimethylhexyl group, 1-(2-methylpropyl)-3-methylbutyl group, 3,7-dimethyloctyl group, and 2-(1, The 3,3-trimethylbutyl)-5,7,7-trimethyloctyl group may be mentioned.

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

(a) Ether oils are dicaprylyl ether, dicapryl ether, dilauryl ether, diisostearyl ether, dioctyl ether, nonyl phenyl ether, dodecyl dimethyl butyl ether, cetyl dimethyl butyl ether, cetyl isobutyl ether, and mixtures thereof. It may be preferred to be selected.

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

The amount of the (a) ether oil in the composition according to the present invention may be 0.1% by mass or more, preferably 1% by mass or more, more preferably 3% by mass or more, based on the total mass of the composition. It may be even more preferred that the amount of (a) ether oil in the composition according to the present invention is at least 5% by weight, based on the total weight of the composition.

On the other hand, the amount of (a) ether oil in the composition according to the present invention is 40% by mass or less, preferably 30% by mass or less, and more preferably 20% by mass or less based on the total mass of the composition. May be. It may be even more preferred that the amount of (a) ether oil in the composition according to the invention is not more than 15% by weight, based on the total weight of the composition.

The amount of (a) ether oil in the composition according to the present invention is in the range of 0.1 to 40% by mass, preferably 1 to 30% by mass, more preferably 3 to 20% by mass, based on the total mass of the composition. It may be. It may be even more preferred that the amount of (a) ether oil in the composition according to the invention is from 5 to 15% by weight, based on the total weight of the composition.

(Nonionic surfactant)
The composition according to the invention comprises (b) at least one nonionic surfactant. A single type of specific nonionic surfactant may be used, or two or more different types of specific nonionic surfactant may be used in combination.

The nonionic surfactant may have an HLB (hydrophilic/lipophilic balance) value of 8.0 to 14.0, preferably 9.0 to 13.5, and more preferably 10.0 to 13.0. When two or more nonionic surfactants are used, their HLB value is determined by the mass average of the HLB values of all nonionic surfactants.

(b) the nonionic surfactant is
(1) polyglyceryl fatty acid ester, polyoxyalkylenated alkyl glyceride, and a surfactant selected from polyoxyalkylenated fatty ether,
(2) fatty acid or fatty alcohol, mixed ester of carboxylic acid and glycerol,
(3) fatty acid ester of sugar and fatty alcohol ether of sugar,
(4) sorbitan fatty ester and sorbitan oxyalkylenated fatty ester, and a surfactant selected from oxyalkylenated fatty ester,
(5) a block copolymer of ethylene oxide (A) and propylene oxide (B),
(6) polyoxyethylenated (1-40 EO) and polyoxypropyleneated (1-30 PO) alkyl (C ₁₆ -C ₃₀ )ether,
(7) Silicone surfactant, and
(8) It can be selected from these mixtures.

The surfactant (1) may be a fluid at a temperature below 45°C.

The surfactant (1) is, in particular,
- at least one saturated or unsaturated linear or branched C ₈ -C ₂₂ hydrocarbon radical, for example C ₈ -C ₂₂ alkyl or alkenyl group, preferably a C ₈ -C ₁₈ alkyl or alkenyl group, more preferably C ₈ -C ₁₂ alkyl or alkenyl group, at least one, preferably one fatty acid, and 2-12 of glycerol, preferably 2-10 glycerol, more preferably 2 to 8 Polyglycerol fatty acid ester of glycerol,
A polyoxyethylenated (PEGylated) alkyl glyceride, for example a polyethylene glycol derivative of a mixture of mono-, di- and tri-glycerides of caprylic acid and capric acid (preferably 2 to 30 ethylene oxide units, more preferably Is 2 to 20 ethylene oxide units, even more preferably 2 to 10 ethylene oxide units), such as PEG-6 (caprylic acid/capric acid) glyceride, PEG-7 (caprylic acid/capric acid) glyceride, and PEG. -7 glyceryl cocoate,
- at least one saturated or unsaturated linear or branched C ₈ -C ₂₂ hydrocarbon radical, for example C ₈ -C ₂₂ alkyl or alkenyl group, preferably a C ₈ -C ₁₈ alkyl or alkenyl group, more preferably C ₈ -C ₁₂ alkyl or alkenyl group, at least one, preferably one fatty alcohol, and 2 to 60 ethylene oxide, preferably 2 to 30 ethylene oxide, more preferably 2 to A polyoxyethylenated fatty ether of 10 ethylene oxides, and
-It can be a mixture of these.

The (b) nonionic surfactant is preferably a mixture of at least two selected from the above polyglyceryl fatty acid ester, polyoxyethylenated alkyl glyceride, and polyoxyethylenated fatty ether.

The polyglyceryl fatty acid ester preferably has a polyglycerol moiety derived from 2-10 glycerol, more preferably 2-8 glycerol, even more preferably 5-7 glycerol.

The polyglyceryl fatty acid ester is a saturated or unsaturated acid containing 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, more preferably 8 to 12 carbon atoms, preferably a saturated acid such as capryl. It may be selected from the mono, di and triesters of acids, capric acid, lauric acid, oleic acid, stearic acid, isostearic acid and myristic acid.

The (b) nonionic surfactant preferably contains at least one polyglyceryl fatty acid monoester and at least one polyglyceryl fatty acid diester.

Polyglyceryl fatty acid ester, capric acid PG2, dicapric acid PG2, tricapric acid PG2, caprylic acid PG2, dicaprylic acid PG2, tricaprylic acid PG2, lauric acid PG2, dilauric acid PG2, trilauric acid PG2, myristic acid PG2, dimyristic acid PG2, Trimyristic acid PG2, stearic acid PG2, distearic acid PG2, tristearic acid PG2, isostearic acid PG2, diisostearic acid PG2, triisostearic acid PG2, oleic acid PG2, dioleic acid PG2, trioleic acid PG2, lactylic acid PG2 (PG2 lactylate) ), dilactylic acid PG2 (PG2 dilactylate), trilactylic acid PG2 (PG2 trilactylate), capric acid PG3, dicapric acid PG3, tricapric acid PG3, caprylic acid PG3, dicaprylic acid PG3, tricaprylic acid PG3, lauric acid PG3, dilauric acid PG3, Trilauric acid PG3, myristic acid PG3, dimyristic acid PG3, trimyristic acid PG3, stearic acid PG3, distearic acid PG3, tristearic acid PG3, isostearic acid PG3, diisostearic acid PG3, triisostearic acid PG3, oleic acid PG3, dioleic acid PG3, trioleic acid PG3, lactyl acid PG3, dilactyl acid PG3, trilactyl acid PG3, capric acid PG4, dicapric acid PG4, tricapric acid PG4, caprylic acid PG4, dicaprylic acid PG4, tricaprylic acid PG4, lauric acid PG4, dilauric acid PG4 , Trilauric acid PG4, myristic acid PG4, dimyristic acid PG4, trimyristic acid PG4, stearic acid PG4, distearic acid PG4, tristearic acid PG4, isostearic acid PG4, diisostearic acid PG4, triisostearic acid PG4, oleic acid PG4, diolein Acid PG4, trioleic acid PG4, lactyl acid PG4, dilactyl acid PG4, trilactyl acid PG4, capric acid PG5, dicapric acid PG5, tricapric acid PG5, caprylic acid PG5, dicaprylic acid PG5, tricaprylic acid PG5, lauric acid PG5, dilauric acid PG5, trilauric acid PG5, myristic acid PG5, dimyristic acid PG5, trimyristic acid PG5, stearic acid PG5, distearic acid PG5, tristearic acid PG5, isostearic acid PG5, di Isostearic acid PG5, triisostearic acid PG5, oleic acid PG5, dioleic acid PG5, trioleic acid PG5, lactyl acid PG5, dilactyl acid PG5, trilactyl acid PG5, capric acid PG6, dicapric acid PG6, tricapric acid PG6, caprylic acid PG6, Dicaprylic acid PG6, tricaprylic acid PG6, lauric acid PG6, dilauric acid PG6, trilauric acid PG6, myristic acid PG6, dimyristic acid PG6, trimyristic acid PG6, stearic acid PG6, distearic acid PG6, tristearic acid PG6, isostearic acid PG6 , PG6 diisostearate, PG6 triisostearate, PG6 oleic acid, PG6 dioleate, PG6 trioleate, PG6 dilactylate, PG6 dilactylate, PG6 trilactylate, PG10 dicapric acid, PG10 tricapric acid, PG10 caprylic acid , Dicaprylic acid PG10, tricaprylic acid PG10, lauric acid PG10, dilauric acid PG10, trilauric acid PG10, myristic acid PG10, dimyristic acid PG10, trimyristic acid PG10, stearic acid PG10, distearic acid PG10, tristearic acid PG10, isostearic acid PG10, diisostearate PG10, triisostearate PG10, oleate PG10, dioleate PG10, trioleate PG10, lactylate PG10, dilactylate PG10, and trilactylate 10 may be selected.

The polyoxyalkylenated fatty ether, preferably the polyoxyethylenated fatty ether, may comprise 2 to 60 ethylene oxide units, preferably 2 to 30 ethylene oxide units, more preferably 2 to 10 ethylene oxide units. .. The fatty chain of the ether may be chosen in particular from lauryl, behenyl, arachidyl, stearyl and cetyl units, and mixtures thereof, such as cetearyl. Examples of ethoxylated fatty ethers are lauryl alcohol ethers containing 2, 3, 4, and 5 ethylene oxide units (CTFA names: laureth-2, laureth-3, laureth-4, and laureth-5), For example, the product sold by Nikko Chemicals Co. under the name Nikkol BL-2, the product sold by Nippon Emulsion Co. under the name Emalex 703, the product sold by Nikko Chemicals Co. under the name Nikkol BL-4, the name EMALEX 705. The products sold by Nippon Emulsion Co., Ltd. can be mentioned.

(2) Fatty acid or fatty alcohol, mixed ester of carboxylic acid and glycerol can be used as the above nonionic surfactant, 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, More preferably it may be selected in particular from the group comprising fatty acids or fatty alcohols with alkyl or alkenyl chains containing 8 to 12 carbon atoms, and mixed esters of α-hydroxy acids and/or succinic acid with glycerol. The α-hydroxy acid may be, for example, citric acid, lactic acid, glycolic acid or malic acid, and mixtures thereof.

The alkyl chain of the fatty acid or alcohol derived from the mixed ester that can be used in the nanoemulsion of the present invention may be linear or branched, saturated or unsaturated. These include, inter alia, stearate, isostearate, linoleate, oleate, behenate, arachidonate, palmitate, myristate, laurate, caprate, isostearyl, stearyl, linoleyl, oleyl, behenyl, myristyl, lauryl or capryl chains, and these. It may be a mixture of.

As an example of a mixed ester that can be used in the nanoemulsions of the present invention, a mixed ester of glycerol and a mixture of citric acid, lactic acid, linoleic acid and oleic acid sold under the name Imwitor 375 by Huels (CTFA). Name: citric acid/lactic acid/linoleic acid/glyceryl oleate); sold by Huels under the name Imwitor 780 K, a mixed ester of succinic acid and isostearyl alcohol and glycerol (CTFA name: isostearyl disuccinate). Glyceryl (Isostearyl diglyceryl succinate); sold by Huels under the name Imwitor 370, a mixed ester of citric acid and stearic acid with glycerol (CTFA name: glyceryl stearate citrate); name Lactodan B30 or Rylo LA30 Danisco. Mention may be made of lactic acid and a mixed ester of stearic acid and glycerol (CTFA name: Glyceryl stearate lactate) sold by the company.

Can be used as the above nonionic surfactant (3) fatty acid esters of sugars, in particular, esters or ester mixtures of C ₈ -C ₂₂ fatty acids, sucrose, maltose, glucose or fructose, as well as C ₁₄ May be selected from the group comprising esters or ester mixtures of C ₂₂ fatty acids with methyl glucose.

The C8-C22 or C14-C22 fatty acids forming the fatty units of the esters that can be used in the present invention are saturated or unsaturated straight-chain containing ₈ to ₂₂ or ₁₄ to ₂₂ carbon atoms, respectively. Containing a linear alkyl or alkenyl chain. The fatty units of the ester may be chosen in particular from stearic acid, behenic acid, arachidonic acid, palmitic acid, myristic acid, lauric acid, capric acid, and mixtures thereof. Preference is given to using stearic acid.

Examples of esters or ester mixtures of fatty acids with sucrose, maltose, glucose or fructose include sucrose monostearate, sucrose distearate and sucrose tristearate, and mixtures thereof, such as Crodesta F50, F70, F110 by the company Croda. And the products sold under the name F160, and examples of esters or ester mixtures of fatty acids and methyl glucose which may be mentioned are polyglyceryl distearate-3 sold under the name Tego-care 450 by the company Goldschmidt. It is methyl glucose. Mention may also be made of glucose or maltose monoesters such as methyl o-hexadecanoyl-6-D-glucoside and o-hexadecanoyl-6-D-maltoside.

The fatty alcohol ether of (3) sugar that can be used as the above nonionic surfactant may be solid at a temperature of 45° C. or lower, and in particular, C _{8 to} C ₂₂ fatty alcohol and glucose, maltose, sucrose or It may be selected from the group comprising ethers or ether mixtures with fructose and ethers or ether mixtures of C ₁₄ -C ₂₂ fatty alcohols with methyl glucose. These are, in particular, alkyl polyglucosides.

Nano can be used in the emulsion, C ₈ -C ₂₂ or C ₁₄ -C ₂₂ fatty alcohols to form fatty units of ethers of the present invention, respectively, contain 8-22 or 14-22 carbon atoms Containing saturated or unsaturated linear alkyl or alkenyl chains. The fatty units of the ether can be chosen in particular from decyl, cetyl, behenyl, arachidyl, stearyl, palmityl, myristyl, lauryl, capryl and hexadecanoyl units, and mixtures thereof, such as cetearyl.

Examples of fatty alcohol ethers of sugars are, for example, sold by Henkel under the names Plantaren 2000 and Plantaren 1200, respectively, alkylpolyglucosides such as decyl glucoside and lauryl glucoside, for example the name Montanov 68 by the company SEPPIC, the name by Goldschmidt. Tego-care CG90 and Henkel sell under the name Emulgade KE3302, optionally cetostearyl glucoside as a mixture with cetostearyl alcohol, and sold by SEPPIC under the name Montanov 202, for example arachidyl alcohol and Mention may be made of arachidyl glucoside in the form of a mixture of behenyl alcohol and arachidyl glucoside.

More specifically used surfactants are sucrose monostearate, sucrose distearate or sucrose tristearate and mixtures thereof, polyglyceryl-3 methyl glucose distearate, and alkyl polyglucosides.

Can be used as the above nonionic surfactant (4) oxyalkylene fatty esters of fatty esters and sorbitan sorbitan, C ₁₆ -C ₂₂ fatty acid esters and oxyethylenated C ₁₆ -C ₂₂ fatty acid esters of sorbitan sorbitan Can be selected from the group comprising: They may be formed from sorbitol or ethoxylated sorbitol and at least one fatty acid containing at least one saturated linear alkyl chain containing 16 to 22 carbon atoms each. The oxyethylenated ester may generally contain 1 to 100 ethylene glycol units, preferably 2 to 40 ethylene oxide (EO) units.

These esters may be chosen in particular from stearic acid esters, behenic acid esters, arachidonic acid esters, palmitic acid esters and mixtures thereof. Stearic acid esters are preferably used.

As examples of the above-mentioned nonionic surfactants which can be used in the present invention, sorbitan monostearate (CTFA name: sorbitan stearate) sold under the name ICI company Span 60, the name ICI company Span 40. Mention may be made of sorbitan monopalmitate (CTFA name: sorbitan palmitate) sold under the trade name of sorbitan tristearate 20 EO (CTFA name: polysorbate 65) sold under the name Tween 65 by ICI.

(4) Oxyalkylenated fatty ester, preferably ethoxylated fatty ester, which can be used as the above nonionic surfactant, has 1 to 100 ethylene oxide units, preferably 2 to 60 ethylene oxide units, more preferably Formed by 2 to 30 ethylene oxide units and at least one fatty acid chain containing 8 to 22 carbon atoms, preferably 8 to 18 carbon atoms, more preferably 8 to 12 carbon atoms. It may be an ester. The fatty chain of the ester may be chosen in particular from the units of stearic acid, behenic acid, arachidonic acid and palmitic acid, and mixtures thereof. Examples of ethoxylated fatty esters that may be mentioned are stearic acid esters containing 40 ethylene oxide units (CTFA name: PEG-40 stearate), such as the product sold under the name Myrj 52 by the company ICI, as well as 8 An ester of behenic acid containing the ethylene oxide unit (CTFA name: PEG-8 behenate), such as the product sold under the name Compritol HD5 ATO by the company Gattefosse.

The block copolymer of (5) ethylene oxide (A) and propylene oxide (B), which can be used as the above nonionic surfactant, has the formula (I):
HO(C ₂ H ₄ O) _x (C ₃ H ₆ O) _y (C ₂ H ₄ O) _z H (I)
[Wherein x, y and z are integers, x+z is in the range of 2-100 and y is in the range of 14-60], and mixtures thereof, more particularly 8.0 It may in particular be selected from the block copolymers of formula (I) having an HLB value in the range of ˜14.0.

Can be used as the above nonionic surfactant (6) polyoxyethylenated (1 to 40 EO) and polyoxypropylene (1 to 30 PO) alkyl (C ₁₆ -C ₃₀₎ ethers,
PPG-6 decyl tetradeceth-30; polyoxyethylene (30) polyoxypropylene (6) tetradecyl ether, such as that sold as Nikkol PEN-4630 from Nikko Chemicals Co., Ltd.,
PPG-6 decyl tetradeceth-12; polyoxyethylene (12) polyoxypropylene (6) tetradecyl ether, such as those sold as Nikkol PEN-4612 by Nikko Chemicals Co., Ltd.,
PPG-13 decyl tetradeces-24; polyoxyethylene (24) polyoxypropylene (13) decyl tetradecyl ether, such as that sold by NOF Corporation as UNILUBE 50 MT-2200B,
PPG-6 decyl tetradeceth-20; polyoxyethylene (20) polyoxypropylene (6) decyl tetradecyl ether, such as those sold as Nikkol PEN-4620 from Nikko Chemicals Co., Ltd.,
PPG-4 Ceteth-1; polyoxyethylene (1) polyoxypropylene (4) cetyl ether, such as that sold as Nikkol PBC-31 from Nikko Chemicals Co., Ltd.,
PPG-8 Ceteth-1; polyoxyethylene (1) polyoxypropylene (8) cetyl ether, such as that sold as Nikkol PBC-41 from Nikko Chemicals Co., Ltd.,
PPG-4 Ceteth-10; polyoxyethylene (10) polyoxypropylene (4) cetyl ether, such as that sold as Nikkol PBC-33 by Nikko Chemicals Co., Ltd.,
PPG-4 Ceteth-20; polyoxyethylene (20) polyoxypropylene (4) cetyl ether, such as that sold as Nikkol PBC-34 by Nikko Chemicals Co., Ltd.,
PPG-5 Ceteth-20; polyoxyethylene (20) polyoxypropylene (5) cetyl ether, such as that sold as Procetyl AWS from Croda,
PPG-8 Ceteth-20; polyoxyethylene (20) polyoxypropylene (8) cetyl ether, such as that sold as Nikkol PBC-44, Nikko Chemicals Co., Ltd., and
PPG-23 Steareth-34; polyoxyethylene polyoxypropylene stearyl ether (34 EO) (23 PO), such as that sold by Pola Chemical Industries as Unisafe 34 S-23, may be selected from the group consisting of: These can provide a stable composition for a long time even when the temperature of the composition increases or decreases within a relatively short time.

Polyoxyethylenated (1 to 40 EO) and polyoxypropylene (1 to 30 PO) alkyl (C ₁₆ ~C ₃₀₎ ether, PPG-6 decyltetradeceth -30, PPG-13 decyltetradeceth - 24, PPG-6 decyl tetradeceth-20, PPG-5 ceteth-20, PPG-8 ceteth-20, and PPG-23 steareth-34 (15-40 EO) and polyoxy. it is also more preferably be oxypropylenated (5 to 30 PO) alkyl (C ₁₆ ~C ₂₄₎ ether.

Polyoxyethylenated (1 to 40 EO) and polyoxypropylene (1 to 30 PO) alkyl (C ₁₆ ~C ₃₀₎ ether, PPG-6 decyltetradeceth -30, PPG-13 decyltetradeceth - 24, PPG-5 ceteth-20, and can be selected from the group consisting of PPG-8 ceteth-20, at (15 to 40 EO) and polyoxypropylene (5 to 30 PO) alkyl (C ₁₆ ~C ₂₄₎ ether Sometimes it is even more preferred.

Examples of the (7) silicone surfactant that can be used as the nonionic surfactant include those disclosed in the documents of US Pat. No. 5,364,633A and US Pat. No. 5,411,744A.

The above-mentioned (7) silicone surfactant as the nonionic surfactant may preferably be a compound of formula (I).

In the formula,
R ₁ , R ₂ and R ₃ , independently of each other, are a C _{1 to} C ₆ alkyl group or -(CH ₂ ) _x -(OCH ₂ CH ₂ ) _y -(OCH ₂ CH ₂ CH ₂ ) _z -OR ₄ Represents a group, at least one of R ₁ , R ₂ or R ₃ group is not an alkyl group, R ₄ is hydrogen, an alkyl group or an acyl group,
A is an integer in the range 0-200,
B is an integer in the range 0-50, provided that A and B are not equal to 0 at the same time,
x is an integer in the range 1 to 6,
y is an integer in the range 1-30,
z is an integer in the range 0-5.

According to one preferred embodiment of the present invention, in the compound of formula (I), the alkyl group is a methyl group, x is an integer in the range of 2 to 6, and y is an integer in the range of 4 to 30. Is.

As examples of silicone surfactants of formula (I), mention may be made of compounds of formula (II).

In the formula, A is an integer in the range of 20 to 105, B is an integer in the range of 2 to 10, and y is an integer in the range of 10 to 20.

As examples of silicone surfactants of formula (I), mention may also be made of compounds of formula (III).
H-(OCH ₂ CH ₂ ) _y -(CH ₂ ) ₃ -[(CH ₃ ) ₂ SiO] _A' -(CH ₂ ) ₃ -(OCH ₂ CH ₂ ) _y -OH (III)
In the formula, A′ and y are integers in the range of 10 to 20.

Compounds of the invention that can be used include those sold by Dow Corning under the names DC5329, DC7439-146, DC2-5695 and Q4-3667. Compounds DC 5329, DC 7439-146 and DC 2-5695 are compounds of formula (II), where A is 22, B is 2, y is 12, respectively; A is 103, B is 10 , Y is 12; A is 27, B is 3, and y is 12.

Compound Q4-3667 is a compound of formula (III), wherein A is 15 and y is 13.

The amount of the (b) nonionic surfactant in the composition according to the present invention is 0.1% by mass or more, preferably 1% by mass or more, more preferably 3% by mass or more, based on the total mass of the composition. May be. In some cases it is even more preferred that the amount of (b) nonionic surfactant in the composition according to the invention is at least 5% by weight, based on the total weight of the composition.

On the other hand, the amount of the (b) nonionic surfactant in the composition according to the present invention is, relative to the total mass of the composition, 30% by mass or less, preferably 20% by mass or less, more preferably 16% by mass. It may be less than or equal to %. It may even be even more preferred that the amount of (b) nonionic surfactant in the composition according to the invention is not more than 12% by weight, based on the total weight of the composition.

The amount of the (b) nonionic surfactant in the composition according to the present invention is 0.1 to 30% by mass, preferably 1 to 20% by mass, more preferably 3 to 16% by mass, based on the total mass of the composition. It may be in the range of %. It may even be even more preferred that the amount of (b) nonionic surfactant in the composition according to the invention is from 5% to 12% by weight, based on the total weight of the composition.

(Anionic surfactant)
The composition according to the invention comprises (c) at least one anionic surfactant. You may use it in combination of 2 or more types of anionic surfactant. As such, a single type of anionic surfactant or a combination of different types of anionic surfactant may be used.

(c) Anionic surfactants are in particular amino acid-based anionic surfactants, taurates, phosphates and alkyl phosphates, carboxylates, sulfosuccinates, alkyl sulphates, alkyl ether sulphates, sulphonates, isethionates, alkyls. It may be especially selected from ether carboxylic acids, alkyl sulfoacetates, polypeptides, and mixtures thereof. Preferably, (c) anionic surfactant is selected from amino acid-based anionic surfactants.

1) The amino acid-based surfactant is derived from a carboxylic acid salt of an amino acid, and the amine group located on the α-carbon or β-carbon of the amino acid salt is acylated with a C _{8 to} C ₂₂ fatty acid derivative.

The carboxylate salts of these amino acids can be formed by conventional means such as neutralizing each amino acid with a base. The amine group located on the α-carbon or β-carbon of the neutralized amino acid is acylated with a fatty acid halide (acyl halide) in the presence of a base by the well-known Schotten-Baumann reaction to give an amide. And thus forming the desired surfactant reaction product, ie, the amino acid surfactant. Suitable acyl halides for acylating a carboxylate of an amino acid include acyl chloride, acyl bromide, acyl fluoride and acyl iodide. Acyl halides can be prepared by reacting a saturated or straight-chain or branched C ₈ -C ₂₂ unsaturated fatty acids halide (bromide, chloride, fluoride and iodide) thionyl with. Representative acyl halides include decanoyl chloride, dodecanoyl chloride (lauroyl chloride), cocoyl chloride (fatty acid chloride derived from coconut oil), tetradecanoyl chloride (myristoyl chloride), hexadecanoyl chloride (palmitoyl chloride), chloride. Octadecanoyl (stearoyl chloride), 9-octadecenoyl chloride (oleoyl chloride), eicosanoyl chloride (arachidoyl chloride), docosanoyl chloride, and any mixture thereof are included, but are not limited thereto. Other acyl halides include the bromides, fluorides and iodides of the aforementioned fatty acids. Methods of preparing acyl halides, as well as alternative methods of acylating amino acids, are described in U.S. Patent Application Publication No. 2008/0200704 published Aug. 21, 2008, which application is hereby incorporated by reference. Incorporated into.

In one embodiment, the amino acid-based anionic surfactant is represented by formula (IV).

In the formula,
Z represents a saturated or unsaturated, linear or branched, hydrocarbon group having 8 to 22 carbon atoms,
X is hydrogen or a methyl group,
n is 0 or 1,
Y is _{hydrogen, -CH 3, -CH (CH 3} ) 2, -CH 2 CH (CH 3) 2, -CH (CH 3) CH 2 CH 3, -CH 2 C 6 H 5, -CH 2 C ₂ H ₄ OH, -CH ₂ OH, -CH(OH)CH ₃ , -(CH ₂ ) ₄ NH ₂ , -(CH ₂ ) ₃ NHC(NH)NH ₂ , -CH ₂ C(O)O ^- M ⁺ , -(CH ₂ ) ₂ C(O)OH, -(CH ₂ ) ₂ C(O)O ^- M ⁺ ,
M is a salt-forming cation in which COO is the counter anion, for example sodium, potassium, ammonium or triethanolamine.

According to a preferred embodiment of the invention, in the amino fatty acid of formula (IV):
Z is a straight-chain C ₈ -C ₁₈ saturated or unsaturated alkyl group, in particular a cocoyl group,
X is hydrogen,
n is 0,
Y is hydrogen,
M is a salt-forming cation in which COO is the counter anion, for example sodium, potassium, ammonium or triethanolamine.

Examples of amino acid surfactants are alanine, arginine, aspartic acid, glutamic acid, glycine, isoleucine, leucine, lysine, phenylalanine, serine, tyrosine, valine, sarcosine salts, and any mixtures thereof. More specifically, dipotassium capryloyl glutamate, dipotassium undecylenoyl glutamate, disodium capryloyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, capryloyl glutamate. Potassium, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecylenoyl glutamate, sodium capryloyl glutamate, sodium cocoyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium oriboyl glutamate voyl glutamate , Sodium palmitoyl glutamate, sodium stearoyl glutamate, sodium undecylenoyl glutamate, cocoyl methyl β-alanine, lauroyl β-alanine, lauroyl methyl β-alanine, myristoyl β-alanine, lauroyl methyl β-alanine potassium , Sodium cocoylalanine, sodium cocoylmethyl β-alanine and sodium myristoylmethyl β-alanine, palmitoyl glycinate, sodium lauroylglycine, sodium cocoylglycine, sodium myristoylglycine, potassium lauroylglycine, potassium cocoylglycine, potassium lauroylsarcosine, Cocoyl sarcosine potassium, cocoyl sarcosine sodium, lauroyl sarcosine sodium, myristoyl sarcosine sodium, oleoyl sarcosine sodium, palmitoyl sarcosine sodium, lauroyl sarcosine ammonium, sodium lauroyl aspartate, myristoyl sodium aspartate, sodium cocoyl aspartate, sodium caproyl aspartate, Disodium lauroyl aspartate, disodium myristoyl aspartate, disodium cocoyl aspartate, disodium caproyl aspartate, potassium lauroyl aspartate, potassium myristoyl aspartate, potassium cocoyl aspartate, caproirua Mention may be made of amino acid surfactants such as potassium sparagate, dipotassium lauroyl aspartate, dipotassium myristoyl aspartate, cocoyl dipotassium aspartate, dipotassium caproyl aspartate, and mixtures thereof.

Commercially available amino acid surfactants, for example
-Sarcosinate, for example lauroyl sarcosine sodium sold under the name Sarkosyl NL 97® by Ciba or under the name Oramix L 30® by Seppic, Nikkol Sarcosinate by Nikko Chemicals Ltd. Myristoyl sarcosine sodium sold under the name MN (registered trademark), or Nikkol Sarcosinate PN (registered trademark) under the name Nikkol Sarcosinate PN (registered trademark) by Nikko Chemicals Co., Ltd.,
-Alaninate, for example N-lauroyl-N- sold under the name Sodium Nikkol Alaninate LN 30 (registered trademark) by Nikko Chemicals Co., Ltd. or under the name Alanone ALE (registered trademark) by Kawaken Fine Chemical Co., Ltd. Sodium methylamidopropinate, or triethanolamine N-lauroyl-N-methylalanine sold under the name Alanone ALTA® by Kawaken Fine Chemicals Co., Ltd.
-Glutamate, for example, monococoyl glutamic acid triethanolamine sold under the name Acylglutamate CT-12® by Ajinomoto Co., Inc., lauroyl glutamic acid sold under the name Acylglutamate LT-12® by Ajinomoto Co., Inc. Triethanolamine,
-Aspartate, for example a mixture of N-lauroyl aspartate triethanolamine and N-myristoyl aspartate triethanolamine sold under the name Asparack® by Mitsubishi.
A glycine derivative (glycinate), for example N-cocoylglycine sodium sold under the names Amilite GCS-12® and Amilite GCK 12 by Ajinomoto Co.,
A citrate, for example the citric acid monoester of oxyethylenated (9 mol) coco alcohol sold under the name Witconol EC 1129 by the company Goldschmidt, and
Reference may be made to galacturonate, for example sodium dodecyl D-galactoside uronate sold by Soliance.

2) As taurate, the sodium salt of palm kernel oil methyl taurate sold under the name Hostapon CT Pate® by Clariant; N-acyl-N-methyl taurate, for example Hostapon LT-SF by Clariant. N-Cocoyl-N-methyltaurate sodium, sold by Nikko Chemicals Co., Ltd. under the name Nikkol CMT-30-T (registered trademark), Nikkol by Nikko Chemicals Co., Ltd. Mention may be made of sodium palmitoylmethyl taurate phosphate sold under PMT® or sodium stearoylmethyl taurate phosphate sold under the name Sunsoft O-30S by Taiyo Kagaku Co.

3) As phosphates and alkyl phosphates, for example monoalkyl phosphates and dialkyl phosphates such as lauryl monophosphate sold under the name MAP 20® by Kao Chemicals, potassium salts of dodecyl phosphate, Crafol by the name Cognis. A mixture of monoesters and diesters (predominantly diesters) sold under AP-31®, a mixture of octyl phosphate monoesters and diesters sold under the name Crafol AP-20® by the Cognis company, A mixture of ethoxylated (7 mol EO) 2-butyloctyl phosphate monoesters and diesters sold under the name Isofol 12 7 EO-Phosphate Ester® by Condea, reference name Arlatone MAP 230K-40 by Uniqema. (Registered trademark) and Arlatone MAP 230T-60®, potassium or triethanolamine salts of mono(C ₁₂ -C ₁₃ )alkyl phosphates, sold by Rhodia Chimie under the name Dermalcare MAP XC-99/09. Mention may be made of potassium lauryl phosphate sold under the registered trademark and potassium cetyl phosphate sold under the name Arlatone MAP 160K by the company Uniqema.

4) As a carboxylate,
Amido ether carboxylate (AEC), for example sodium lauryl amide ether carboxylate (3 EO) sold under the name Akypo Foam 30® by Kao Chemicals,
A polyoxyethylenated carboxylate salt, for example sodium oxyethylenated (6 EO) lauryl ether carboxylate (65/25/10 C ₁₂ sold under the name Akypo Soft 45 NV® by the company Kao Chemicals). -C ₁₄ -C _16), the name by the name Olivem 400 (sold under the registered trademark), polyoxyethylene fatty acid and carboxymethylated fatty olive oil origin, or Nikko Chemicals Co. by Biologia E Tecnologia Co. Nikkol ECTD-6NEX (Registered trademark) sodium oxyethylenated (6 EO) tridecyl ether carboxylate, and
A salt of a fatty acid having a C ₆ -C ₂₂ alkyl chain neutralized with an organic base or an inorganic base (soap), such as potassium hydroxide, sodium hydroxide, triethanolamine, N-methylglucamine, lysine and Arginine can be mentioned.

5) As sulfosuccinates, for example oxyethylenated (3 EO) lauryl (70/30 sold under the names Setacin 103 Special® and Rewopol SB-FA 30 K 4® by the Witco company. C ₁₂ /C ₁₄ )Alcohol monosulfosuccinate, the disodium salt of hemisulfosuccinate of C ₁₂ -C ₁₄ alcohols sold under the name Setacin F Special Paste® by the company Zschimmer Schwarz, Cognis. Oxyethylenated (2 EO) oleamide disodium oleamide sulphosuccinate sold under the name Standapol SH 135®, oxyethylenated (5 EO sold under the name Lebon A-5000® by Sanyo). EO) Lauramide monosulfosuccinate, the disodium salt of oxyethylenated (10 EO) lauryl citrate monosulfosuccinate sold under the name Rewopol SB CS 50® by Witco, or Witco. Mention may be made of the ricinoleic acid monoethanolamide monosulfosuccinate sold under the name Rewoderm S 1333®. Polydimethylsiloxane sulfosuccinates such as PEG-12 dimethicone sulfosuccinate disodium sold under the name Mackanate-DC 30 by MacIntyre can also be used.

6) As alkyl sulphates, for example, triethanolamine lauryl sulphate (CTFA name: TEA lauryl sulphate), for example the product sold under the name Empicol TL40 FL by the company Huntsman or the product sold under the name Texas T42 by the company Cognis. These products are 40% in aqueous solution. Mention may also be made of ammonium lauryl sulphate (CTFA name: ammonium lauryl sulphate), for example the product sold under the name Empicol AL 30FL by the company Huntsman, which is 30% in aqueous solution.

7) As alkyl ether sulphates, for example, sodium lauryl ether sulphate (CTFA name: sodium laureth sulphate), such as those sold under the names Texapon N40 and Texapon AOS 225 UP by Cognis, or ammonium lauryl ether sulphate (CTFA name: Ammonium laureth sulfate), such as that sold under the name Standapol EA-2 by the company Cognis.

8) As sulfonates, for example α-olefin sulfonates, such as those sold under the name Bio-Terge AS-40® by Stepan, Witconate AOS Protege® and Sulframine AOS PH 12(TM) by Witco. Registered trademark) or by the Stepan Company under the name Bio-Terge AS-40 CG® sodium α-olefin sulfonate (C ₁₄ -C ₁₆ ), by the Clariant company under the name Hostapur SAS 30. Secondary sodium olefin sulphonate sold under the trademark (R), or linear alkylaryl sulfonates such as Manrosol SXS30(R), Manrosol SXS40(R) and Manrosol SXS93(R) by Manro. Mention may be made of sodium xylene sulphonate sold at

9) As isethionates, mention may be made of acyl isethionates, for example sodium cocoyl isethionate, for example the product sold under the name Jordapon CI P® by the company Jordan.

10) As the alkyl ether carboxylic acid, a polyoxyethylene alkyl ether carboxylic acid can be mentioned, and examples thereof include compounds corresponding to the formula (IV).
RO[CH ₂ O] _u [(CH ₂ ) _x CH(R')(CH ₂ ) _y (CH ₂ ) _z O] _v [CH ₂ CH ₂ O] _w CH ₂ COOH (V)
In the formula,
R is a hydrocarbon group containing 6 to 40 carbon atoms,
u, v, and w independently of each other represent a number from 0 to 60,
x, y, and z each independently represent a number from 0 to 13,
R 'represents hydrogen, alkyl, preferably C ₁ -C ₁₂ alkyl,
The sum of x+y+z is 0 or more.

In formula (V), R can be linear or branched, acyclic or cyclic, saturated or unsaturated, aliphatic or aromatic, substituted or unsubstituted. Examples of the substituent include a monovalent functional group such as a halogen atom, a hydroxyl group, a C _{1 to} C ₆ alkoxy group, an amino group, a C _{1 to} C ₆ alkylamino group, a C _{1 to} C ₆ dialkylamino group, and a nitro group. Group, carbonyl group, acyl group, carboxyl group, cyano group and the like. Typically, R is a linear or branched, acyclic C _{6 to} C ₄₀ alkyl or alkenyl group or a C _{1 to} C ₄₀ alkylphenyl group, more typically C _{8 to} C ₂₄ alkyl. Or an alkenyl group or a C _{4 to} C ₂₀ alkylphenyl group, and even more typically a C _{10 to} C ₁₈ alkyl group or an alkenyl group or a C _{6 to} C ₁₆ alkylphenyl group, which may be substituted. u, v, w are, independently of each other, typically a number from 2 to 20, more typically a number from 3 to 17, most typically a number from 5 to 15; x, y And z, independently of each other, are typically numbers from 2 to 13, more typically 1 to 10, most typically 0 to 8.

Polyoxyethylene alkyl ether carboxylic acids corresponding to formula (IV) are obtained by alkoxylating alcohol ROH with ethylene oxide as a single alkoxide, or by alkoxylation with several alkoxides followed by oxidation. be able to. The numbers u, v, and w each represent the degree of alkoxylation. On the other hand, at the molecular level, the number of u, v, and w, and the total degree of alkoxylation can only be whole numbers, including zero, and at the macroscopic level, these are the average values in the form of fractions. is there. Fatty ether carboxylic acids include polyoxyalkylenated (C ₆ -C ₃₀ )alkyl ether carboxylic acids and salts thereof, more specifically polyoxyethylenated (C ₆ -C ₃₀ )alkyl ether carboxylic acids and their Salts, polyoxyalkylenated (C ₆ -C ₃₀ )alkyl aryl ether carboxylic acids and salts thereof, and polyoxyalkylenated (C ₆ -C ₃₀ )alkyl amide ether carboxylic acids may be included. Preferably, the fatty ether carboxylic acid is polyoxyethylene (3)-(17) lauryl ether carboxylic acid.

Suitable alkyl ether carboxylic acids include polyoxyalkylenated (C ₆ -C ₂₄ )alkyl ether carboxylic acids and salts thereof, especially those containing from 2 to 50 alkylene oxide groups, especially ethylene oxide groups, for example by the company Kao. Mention may be made of the compounds sold by Akypo. The salts are in particular selected from alkali metal salts, especially sodium salts, ammonium salts, amine salts, salts of amino alcohols such as triethanolamine or monoethanolamine, and magnesium salts.

Polyoxyalkylenated (C ₆ ~C ₂₄₎ alkyl ether carboxylic acids can be represented by the following formula (VI).
R ₁ -(OC ₂ H ₄ ) _n -OCH ₂ COOA (VI)
In the formula,
R ₁ represents a linear or branched C _{8 to} C ₂₂ alkyl group or alkenyl group or a mixture of groups, a (C _{8 to} C ₉ )alkylphenyl group, and a R ₂ CONH-CH ₂ —CH ₂ — group. Where R ₂ represents a linear or branched C _{11 to} C ₂₁ alkyl group or alkenyl group,
n is an integer or a decimal number (average value) which can range from 2 to 24, preferably 2 to 10, and the alkyl group is approximately 6 to 20 carbon atoms, preferably 8 to 18 carbon atoms. Containing an atom, aryl preferably represents phenyl,
A represents a hydrogen atom, an ammonium group, Na, K, Li, Mg or a monoethanolamine or triethanolamine residue, preferably a hydrogen atom or a sodium atom, and more specifically a sodium atom.

Preferentially, R ₁ is a linear or branched C ₈ -C ₂₂ alkyl or alkenyl group, or a (C ₈ -C ₉ )alkylphenyl group. In particular, R ₁ represents a (C ₁₂ -C ₁₄ )alkyl, cocoyl or oleyl group or mixture of groups; noniphenyl or octylphenyl group.

Among the commercially available products, the products sold by Kao under the following names can be preferably used.
Akypo NP 70 (in formula (VI), R ₁ =nonylphenyl, n=7 and A=H);
Akypo NP 40 (in formula (VI), R ₁ =nonylphenyl, n=4 and A=H);
Akypo OP 40 (in formula (VI), R ₁ =octylphenyl, n=4 and A=H);
Akypo OP 80 (in formula (VI), R ₁ =octylphenyl, n=8 and A=H);
Akypo OP 190 (in formula (VI), R ₁ =octylphenyl, n=19 and A=H);
Akypo RLM 38 (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=3.8 and A=H);
Akypo RLM 38 NV (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=4 and A=Na);
Akypo RLM 45 (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=4.5 and A=H);
Akypo RLM 45 NV (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=4.5 and A=Na);
Akypo RLM 100 (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=10 and A=H);
Akypo RLM 100 NV (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=10 and A=Na); and
Akypo RLM 160 NV (in formula (VI), R ₁ =(C ₁₂ -C ₁₄ )alkyl, n=16 and A=Na).

The amount of the (c) anionic surfactant in the composition according to the present invention is 0.01% by mass or more, preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, based on the total mass of the composition. Good. It may be even more preferred that the amount of (c) anionic surfactant in the composition according to the invention is 0.15% by weight or more, based on the total weight of the composition.

On the other hand, the amount of the (c) anionic surfactant in the composition according to the present invention, relative to the total mass of the composition, 10% by mass or less, preferably 5% by mass or less, more preferably 1% by mass. It may be the following. It may be even more preferred that the amount of (c) anionic surfactant in the composition according to the invention is 0.5% by weight or less, based on the total weight of the composition.

The amount of the (c) anionic surfactant in the composition according to the present invention is, relative to the total mass of the composition, 0.01 to 10% by mass, preferably 0.05 to 5% by mass, more preferably 0.1 to 1% by mass. May be in the range. It may be even more preferred that the amount of (c) anionic surfactant in the composition according to the invention is from 0.15 to 0.5% by weight, based on the total weight of the composition.

(Betaine)
The composition according to the invention comprises (d) at least one betaine. A single type of specific betaine may be used, or two or more different types of specific betaine may be used in combination.

The term "betaine" as used herein refers to an amphoteric compound having a positively charged cationic moiety and a negatively charged anionic moiety, with no hydrogen atom attached to the positively charged atom of the positively charged cationic moiety, and a positive ion. The charged cationic moiety may not be adjacent to the negatively charged anionic moiety.

For the purposes of the present invention, (d) betaine as used herein is not a surfactant and comprises at least one hydrophilic moiety and at least one hydrophobic moiety.

Positively charged cationic moieties in betaines include, but are not limited to, quaternary ammonium cations, phosphonium cations, and sulfonium cations. Preferably, betaine contains a quaternary ammonium cation as the positively charged cationic moiety.

Negatively charged anionic moieties in betaine include, but are not limited to, carboxylate anions.

Betaine preferably comprises at least one selected from trimethylglycine, carnitine, and L-proline betaine or stachydrin, more preferably betaine comprises trimethylglycine.

The amount of betaine (d) in the composition according to the present invention may be 0.01% by mass or more, preferably 0.1% by mass or more, more preferably 0.3% by mass or more, based on the total mass of the composition. It may be even more preferred that the amount of betaine (d) in the composition according to the invention is at least 0.5% by weight, based on the total weight of the composition.

On the other hand, the amount of (d) betaine in the composition according to the present invention is, relative to the total mass of the composition, 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less. Good. It may be even more preferred that the amount of betaine (d) in the composition according to the invention is less than or equal to 3% by weight, based on the total weight of the composition.

The amount of (d) betaine in the composition according to the present invention is in the range of 0.01 to 15% by mass, preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass, based on the total mass of the composition. May be. It may be even more preferred that the amount of betaine (d) in the composition according to the invention is from 0.5% to 3% by weight, based on the total weight of the composition.

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

The amount of (e) water in the composition according to the present invention is 30% by mass or more, preferably 40% by mass or more, more preferably 50% by mass or more, based on the total mass of the composition.

On the other hand, the amount of (e) water in the composition according to the present invention is 90% by mass or less, preferably 80% by mass or less, and more preferably 70% by mass or less with respect to the total mass of the composition. Good.

The amount of (e) water in the composition according to the invention is, relative to the total weight of the composition, 30 to 90% by weight, preferably 40 to 80% by weight, more preferably 50 to 70% by weight. Good.

(Polyol)
The cosmetic composition according to the invention may comprise at least one polyol. A single type of polyol may be used, or two or more different types of polyol may be used in combination.

The term "polyol" as used herein means an alcohol having two or more hydroxy groups and does not include sugars or derivatives thereof. Derivatives of sugars, sugar alcohols obtained by reducing one or more carbonyl groups of the sugar, and one or more hydrogen atoms in the one or more hydroxy groups, an alkyl group, a hydroxyalkyl group, an alkoxy Included are sugars or sugar alcohols that have been replaced with at least one substituent such as a group, an acyl group or a carbonyl group.

Polyols, at least two hydroxy groups, preferably 2 to 5 hydroxy groups, C ₂ -C ₁₂ polyol, preferably may be a C ₂ -C ₉ polyol. The polyol may be a natural or synthetic polyol. The polyol may have a linear, branched or cyclic molecular structure.

The polyol may be selected from glycerin and its derivatives, and glycols and its derivatives. Polyol consists of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,3-propanediol, and 1,5-pentanediol. Can be selected from the group.

The polyol may be present in an amount in the range 0.1% to 50% by weight, preferably 1% to 40% by weight, for example 10% to 30% by weight, based on the total weight of the composition.

(Associative polyurethane)
The cosmetic composition according to the invention may comprise at least one associative polyurethane. A single type of associative polyurethane may be used, but it is also possible to use two or more different types of associative polyurethane in combination.

For purposes of the present invention, the term "associative polyurethane" refers to polyurethanes that are capable of reversibly associating with each other in a medium.

The associative polyurethane may include at least one hydrophilic moiety and at least one hydrophobic moiety. For the purposes of the present invention, the term "hydrophobic group" means at least 10 carbon atoms, preferably 10-30 carbon atoms, especially 12-30 carbon atoms, more preferentially 16-30 carbon atoms. By a group or polymer having a saturated or unsaturated, linear or branched hydrocarbon-based chain containing carbon atoms is meant.

The associative polyurethane may be cationic or nonionic, preferably nonionic. More particularly, the polymers are characterized in their chains by hydrophilic sequences, often polyoxyethylenated in nature, with aliphatic bonds alone and/or cycloaliphatic bonds and/or aromatic bonds. Contains both hydrophobic sequences which may be

Preferably, these polyether-polyurethanes comprise at least two lipophilic hydrocarbon chains having 6 to 30 carbon atoms, preferably 6 to 20 carbon atoms, separated by hydrophilic sequences, The hydrocarbon chain can be a pendant chain or the terminal chain of a hydrophilic sequence. In particular, it is possible to envisage more than one pendant chain. In addition, the polymer can include hydrocarbon chains at one or both ends of the hydrophilic sequence.

The polyether-polyurethane may be in the form of polyblocks, especially triblocks. The hydrophobic sequence may be at each end of the chain (e.g., a triblock copolymer with a hydrophilic central sequence) or may be distributed both at the end and in the chain (e.g., a polyblock copolymer). .. These same polymers may also be in the form of graft units and may be star-shaped.

Even more specifically, according to the present invention, (i) at least one polyethylene glycol containing 100 to 180 mol of ethylene oxide, (ii) stearyl alcohol or decyl alcohol, which may contain 1 to 150 ethylene glycol units, and (iii) Preference is given to using polyether-polyurethanes composed of at least one diisocyanate and obtainable by polycondensation of at least three compounds.

Such polyether-polyurethanes are sold in particular under the names Aculyn 46® and Aculyn 44® by the company ROHM & HAAS [ACULYN 46® is 150 or 180 mol of ethylene oxide, Polycondensation product of polyethylene glycol containing stearyl alcohol and methylenebis(4-cyclohexyl isocyanate) (SMDI), 15% by weight in a matrix of maltodextrin (4%) and water (81%); ACULYN 440 is a polycondensate of polyethylene glycol containing 150 or 180 mol of ethylene oxide, decyl alcohol and methylene bis(4-cyclohexyl isocyanate) (SMDI), propylene glycol (39%) and water (26%). 35% by weight in the mixture of

According to the invention, the associative polyurethane is preferably a steareth-100/PEG-136/HDI copolymer sold under the name Rheolate FX 1100 by the company Rheox.

The amount of the associative polyurethane is not limited, and may be in the range of 0.01 to 10% by mass, preferably 0.1 to 5% by mass, more preferably 0.4 to 3% by mass, based on the total mass of the composition.

(Optional additives)
The composition according to the invention also comprises, for example, cationic or amphoteric surfactants, solvents, gums, resins, hydrophilic thickeners, hydrophobic thickeners, dispersants, antioxidants such as hydroxyacetophenone, Film-forming agents, preservatives such as salicylic acid and phenoxyethanol, perfumes, neutralizing agents, pH adjusters, disinfectants, UV-screening agents, cosmetic active agents such as vitamins, humectants, emollients or collagen protectants, and mixtures thereof. It may comprise any of the optional additives commonly used in the cosmetics field selected from

It is a routine task for a person skilled in the art to adjust the nature and amount of the above optional additives which may be present in the composition according to the invention such that the desired cosmetic properties are not affected.

In a preferred embodiment of the invention, the composition comprises
(a) at least one ether oil,
(b) at least one polyglyceryl fatty acid ester nonionic surfactant,
(c) at least one amino acid-based anionic surfactant,
(d) at least one betaine,
(e) A form of oil-in-water emulsion containing water.

In another preferred embodiment of the invention, the composition comprises
(a) at least one ether oil,
(b) a nonionic surfactant containing at least one polyglyceryl fatty acid monoester and at least one polyglyceryl fatty acid diester,
(c) at least one amino acid-based nonionic surfactant,
(d) at least one betaine,
(e) A form of oil-in-water emulsion containing water.

The composition according to the invention can be prepared by mixing the abovementioned essential and optional ingredients in a conventional manner.

For example, the composition according to the invention may be
(a) at least one ether oil,
(b) at least one nonionic surfactant,
(c) at least one anionic surfactant,
(d) at least one betaine,
(e) It can be prepared by a method including a step of mixing with water.

It is possible to further mix any of the optional ingredients.

[Cosmetic composition]
The composition according to the invention can preferably be used as a cosmetic composition. Therefore, the composition according to the invention may be intended for application to keratin materials. In the present specification, the keratin substance means a material containing keratin as a main constituent element, and examples thereof include skin, scalp, nails, lips, hair, eyelashes, eyebrows and the like. Therefore, the composition according to the invention is preferably used in a cosmetic method for keratin materials.

The composition according to the invention is preferably a cleansing composition, more preferably a make-up remover, especially a make-up remover which removes make-up from keratinous substances.

The composition according to the invention preferably has good flowability while having an increased viscosity so that the composition does not drip from the keratin material.

[Method and use]
The composition according to the present invention is applied to a keratin substance to be used in a non-therapeutic method such as a cosmetic method for treating a keratin substance such as skin, hair, mucous membrane, nails, eyelashes, eyebrows and scalp. You can

The method according to the invention is preferably a cleansing method, in particular a cleansing method for washing off make-up products, eg mascara, from keratinous substances.

The composition according to the invention can be used as such or in cosmetics, preferably in cleansing products. In particular, the composition according to the invention may preferably be a cleansing product such as body and/or facial skin or keratin fibres, for example hair, eyelashes and eyebrow make-up removal products. Alternatively, the composition according to the invention can be used as one element of the above products. For example, the composition according to the invention can be added to or combined with any other element to form the above product.

The present invention also provides (a) at least one ether oil, (b) at least 1 in order to maintain the size of the oil droplets in the composition below 100 nm, preferably below 90 nm, more preferably below 80 nm. (C) at least one anionic surfactant and (d) at least one betaine in a composition in the form of an oil-in-water emulsion containing one nonionic surfactant and (e) water. Relating to using a combination.

The composition used in the methods and uses according to the present composition may comprise any of the optional ingredients described above for the composition according to the present invention.

The present invention is illustrated in more detail by the examples, which should not be construed as limiting the scope of the invention.

[Micro emulsion gel]
The following compositions of the microemulsion gel form according to Example 1 (Ex.1) and Comparative Examples 1 to 3 (Comp.Ex.1 to 3) shown in Table 1 are shown in Table 1. Prepared by mixing the ingredients shown in Table 1). The numerical values for the amounts of the ingredients shown in Table 1 are all based on the "mass%" of the active ingredient.

[Evaluation]
(Volume average particle diameter)
The volume average particle size of dispersed oil droplets of each composition according to Example 1 (Ex.1) and Comparative Examples 1 to 3 (Comp.Ex.1 to 3) is immediately after being prepared (T0), and 4°C. After storing at 25° C. or 45° C. for 2 months, it was measured with an ELSZ-2000 zeta potential/particle size measuring instrument manufactured by Otsuka Electronics Co.

The evaluation results are summarized in Table 1 below. P.S. in Table 1 means phase separation.

As can be seen from Table 1, the composition according to Example 1 comprises a particular combination of components (a) to (e) of the present invention and was stored at 4°C to 45°C for 2 months. Even after that, the fine emulsion was maintained and good stability was exhibited.

On the other hand, each composition of Comparative Example 1 lacked betaine and anionic surfactants and exhibited poor stability at 4°C to 45°C. The composition according to Comparative Example 2 lacked anionic surfactant and likewise showed poor stability at 4°C to 45°C. In addition, the composition according to Comparative Example 3 lacks betaine and contains an additional nonionic surfactant in place of the anionic surfactant, as well as poor stability at 4°C to 45°C. showed that.

[Microemulsion]
The following compositions of the microemulsion form according to Example 2 (Ex.2) and Comparative Examples 4 to 7 (Comp.Ex.4 to 7) shown in Table 2 are shown in Table 2. Prepared by mixing the ingredients shown in 2). The numerical values for the amounts of the ingredients shown in Table 2 are all based on the "mass%" of the active ingredient.

[Evaluation]
The volume average particle diameter of dispersed oil droplets of each composition according to Example 2 (Ex.2) and Comparative Examples 4 to 7 (Comp.Ex.4 to 7) is immediately after being prepared (T0), and 4°C. After storing at 25° C. or 45° C. for 2 months, it was measured with an ELSZ-2000 zeta potential/particle size measuring instrument manufactured by Otsuka Electronics Co.

The evaluation results are summarized in Table 2 below. P.S. in Table 2 means phase separation.

As can be seen from Table 2, the composition according to Example 2 comprises a particular combination of components (a) to (e) of the present invention and has been stored at 4°C to 45°C for 2 months. Even after that, the fine emulsion was maintained and good stability was exhibited.

On the other hand, the composition according to Comparative Example 4 lacked betaine and anionic surfactant and showed poor stability at 4°C to 45°C. The composition according to Comparative Example 5 lacked betaine and likewise showed poor stability at 4°C to 45°C. In addition, the compositions according to Comparative Examples 6 and 7 lack anionic surfactant and instead include an additional nonionic surfactant, as well as poor stability at 4°C to 45°C. showed that.

It can therefore be concluded that the composition according to the invention exhibits good stability and can therefore be very suitable as a composition for cleaning keratin materials.

(Example 3 and Example 4)
The following microemulsion gel form compositions were prepared by mixing the components shown in the table below. All numerical values for the amounts of the ingredients shown in the table are based on the "mass%" of the active ingredient.

The compositions according to Example 3 and Example 4 contained the specific combination of components (a) to (e) of the invention and showed good stability.

Claims (15)

(a) at least one ether oil,
(b) at least one nonionic surfactant,
(c) at least one anionic surfactant,
(d) at least one betaine,
(e) A composition in the form of an oil-in-water emulsion, which comprises water. The composition according to claim 1, wherein the oil droplets in the composition have a volume average particle size of less than 100 nm, preferably less than 90 nm, more preferably less than 80 nm. The amount of the (a) ether oil in the composition is in the range of 0.1 to 40% by mass, preferably 1 to 30% by mass, more preferably 3 to 20% by mass, based on the total mass of the composition. A composition according to claim 1 or 2. The (b) nonionic surfactant,
(1) polyglyceryl fatty acid ester, polyoxyalkylenated alkyl glyceride, and a surfactant selected from polyoxyalkylenated fatty ether,
(2) fatty acid or fatty alcohol, mixed ester of carboxylic acid and glycerol,
(3) fatty acid ester of sugar and fatty alcohol ether of sugar,
(4) sorbitan fatty ester and sorbitan oxyalkylenated fatty ester, and a surfactant selected from oxyalkylenated fatty ester,
(5) a block copolymer of ethylene oxide (A) and propylene oxide (B),
(6) polyoxyethylenated (1-40 EO) and polyoxypropyleneated (1-30 PO) alkyl (C ₁₆ -C ₃₀ )ether,
(7) Silicone surfactant, and
(8) The composition according to any one of claims 1 to 3, which is selected from these mixtures. The (b) nonionic surfactant,
- at least one saturated or unsaturated linear or branched C ₈ -C ₂₂ hydrocarbon radical, for example C ₈ -C ₂₂ alkyl or alkenyl group, preferably a C ₈ -C ₁₈ alkyl or alkenyl group, more preferably C ₈ -C ₁₂ alkyl or alkenyl group, at least one, preferably one fatty acid, and 2-12 of glycerol, preferably 2-10 glycerol, more preferably 2 to 8 Polyglycerol fatty acid ester of glycerol,
A polyoxyethylenated alkyl glyceride, for example a polyethylene glycol derivative of a mixture of mono-, di- and tri-glycerides of caprylic acid and capric acid (preferably 2 to 30 ethylene oxide units, more preferably 2 to 20 ethylene oxide units). Units, even more preferably 2-10 ethylene oxide units),
- at least one saturated or unsaturated linear or branched C ₈ -C ₂₂ hydrocarbon radical, for example C ₈ -C ₂₂ alkyl or alkenyl group, preferably a C ₈ -C ₁₈ alkyl or alkenyl group, more preferably C ₈ -C ₁₂ alkyl or alkenyl group, at least one, preferably one fatty alcohol, and 2 to 60 ethylene oxide, preferably 2 to 30 ethylene oxide, more preferably 2 to A polyoxyethylenated fatty ether of 10 ethylene oxides, and
-The composition according to any one of claims 1 to 4, selected from mixtures thereof. The composition according to any one of claims 1 to 5, wherein the (b) nonionic surfactant comprises at least one polyglyceryl fatty acid monoester and at least one polyglyceryl fatty acid diester. The amount of the (b) nonionic surfactant in the composition is, relative to the total mass of the composition, 0.1 to 30% by mass, preferably 1 to 20% by mass, more preferably 3 to 16% by mass. 7. The composition according to any one of claims 1 to 6, which is in the range of %. The composition according to any one of claims 1 to 7, wherein the (c) anionic surfactant is selected from amino acid-based anionic surfactants. The (c) anionic surfactant has the formula (IV):

[In the formula,
Z represents a saturated or unsaturated, linear or branched, hydrocarbon group having 8 to 22 carbon atoms,
X is hydrogen or a methyl group,
n is 0 or 1,
Y is _{hydrogen, -CH 3, -CH (CH 3} ) 2, -CH 2 CH (CH 3) 2, -CH (CH 3) CH 2 CH 3, -CH 2 C 6 H 5, -CH 2 C ₂ H ₄ OH, -CH ₂ OH, -CH(OH)CH ₃ , -(CH ₂ ) ₄ NH ₂ , -(CH ₂ ) ₃ NHC(NH)NH ₂ , -CH ₂ C(O)O ^- M ⁺ , -(CH ₂ ) ₂ C(O)OH, -(CH ₂ ) ₂ C(O)O ^- M ⁺ ,
M is represented by a salt-forming cation in which COO is a counter anion, for example sodium, potassium, ammonium or triethanolamine]. 9. A composition according to any one of claims 1 to 8. The amount of the (c) anionic surfactant in the composition is 0.01 to 10% by mass, preferably 0.05 to 5% by mass, and more preferably 0.1 to 1% by mass with respect to the total mass of the composition. 10. The composition according to any one of claims 1 to 9, which is 11. The composition according to any one of claims 1 to 10, wherein the (d) betaine is selected from trimethylglycine, carnitine, and L-proline betaine or stachydrin. The amount of (d) betaine in the composition is in the range of 0.01 to 15% by mass, preferably 0.1 to 10% by mass, more preferably 0.3 to 5% by mass, based on the total mass of the composition. The composition according to any one of claims 1 to 11. The amount of (e) water in the composition is in the range of 30 to 90% by mass, preferably 40 to 80% by mass, and more preferably 50 to 70% by mass, based on the total mass of the composition. 13. The composition according to any one of claims 1-12. Used as such or as a cleansing product, preferably a skin make-up cleansing product, more preferably a body and/or facial make-up cleansing product, according to any one of claims 1 to 13. The composition as described. A method for cleansing keratin substances such as skin, hair, mucous membranes, nails, eyelashes, eyebrows and scalp, wherein the composition according to any one of claims 1 to 13 is applied to the keratin substance. A method comprising the steps of: