Cosmetic composition comprising selected oil and diol

Abstract

The present invention relates to a composition comprising: (a) at least one oil; (b) at least one diol having at least one carbon chain comprising 3 or more carbon atoms wherein the total number of carbon atoms is 5 or 6; and (c) water, wherein: (a) the oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters, and (vi) alkyl lactate under specific conditions; and the weight ratio of the amount of (b) diol having at least one carbon chain comprising 3 or more carbon atoms having a total number of carbon atoms of 5 or 6 to the amount of (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more. The composition according to the invention is stable over time and can exhibit a transparent or slightly translucent appearance.

Description

Technical Field

[0001] The present invention relates to compositions, preferably cosmetic compositions, and more preferably skin cosmetic compositions. Background Art

[0002] Oil-in-water (O / W) and water-in-oil (W / O) emulsions are well known in the field of cosmetics and dermatology, and are particularly used for preparing cosmetic products such as milks, creams, toners, serums and lotions. In particular, miniemulsions such as O / W nanoemulsions or microemulsions are particularly interesting due to their transparent or slightly translucent appearance.

[0003] Generally, a miniemulsion can be formed by using a surfactant. For example, WO2014 / 98265 discloses a nanoemulsion or microemulsion formed by using a combination of some surfactants. Summary of the invention

[0004] However, miniemulsions are sometimes unstable over time, particularly under temperature changes (eg, changes from hot to cold temperatures and vice versa), so that they cause phase separation and do not exhibit a transparent or slightly translucent appearance.

[0005] It is an object of the present invention to provide a composition which is stable over time and which can exhibit a transparent or slightly translucent appearance.

[0006] The above object of the present invention can be achieved by a composition comprising:

[0007] (a) at least one oil;

[0008] (b) at least one diol having at least one carbon chain containing 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6; and

[0009] (c) water,

[0010] in

[0011] The (a) oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters and (vi) alkyl lactates, with the proviso that

[0012] - the (i) fatty alcohol and the (ii) fatty acid contain a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0013] - the (iii) monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0014] - the (iv) divalent carboxylic acid diester comprises at least one branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0015] - the (v) N-acylamino acid ester comprises a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0016] - the (vi) alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0017] as well as

[0018] The weight ratio of the amount of the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

[0019] (i) Fatty alcohols can be represented by the following general formula (1):

[0020] R 1 -OH (1)

[0021] in

[0022] R 1 represents a branched alkyl group, or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms. Preferably, the (i) fatty alcohol is selected from isostearyl alcohol, oleyl alcohol and mixtures thereof.

[0023] (ii) The fatty acid can be represented by the following general formula (2):

[0024] R 1 -COOH (2)

[0025] in

[0026] R 1 represents a branched alkyl group, or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms. Preferably, the (ii) fatty acid is selected from isostearic acid, oleic acid and mixtures thereof.

[0027] (iii) The monovalent carboxylic acid monoester can be represented by the following general formula (3):

[0028] R 2 -COO-R 3 (3)

[0029] in

[0030] R 2 represents a branched alkyl group, or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0031] R 3 It represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms. It is preferred that the (iii) monovalent carboxylic acid monoester is isopropyl isostearate.

[0032] (iv) The divalent carboxylic acid diester can be represented by the following general formula (4):

[0033] R 2 -OC(=O)-R 4 -C(=O)OR 3 (4)

[0034] in

[0035] R 2 and R 3 independently represent a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and

[0036] R 4 represents a straight or branched alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms. It is preferred that the (iv) divalent carboxylic acid diester is selected from diisopropyl adipate, diisopropyl sebacate, and a mixture thereof.

[0037] (v) N-acylamino acid esters can be represented by the following general formula (5):

[0038] R 2 -N(R 5 )-CH(R 6 )-(CH2) n -COO-R 3 (5)

[0039] in

[0040] R 2 represents a straight-chain or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0041] R 3represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms,

[0042] R 5 represents a hydrogen atom, or a straight-chain or branched alkyl group having 1 to 4 carbon atoms,

[0043] R 6 represents a hydrogen atom, or a straight-chain or branched alkyl group having 1 to 4 carbon atoms, which may be substituted by a hydroxyl group or a phenyl group, and

[0044] n represents an integer of 0 to 2. Preferably, the (v) N-acylamino acid ester is isopropyl lauroyl sarcosinate.

[0045] (vi) Alkyl lactate can be represented by the following general formula (6):

[0046] CH3-C(OH)-COO-R 7 (6)

[0047] in

[0048] R 7 represents a straight chain or branched alkyl group or a straight chain or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms. Preferably, the (vi) alkyl lactate is selected from lauryl lactate, isostearyl lactate and mixtures thereof.

[0049] The amount of (a) oil in the composition according to the invention may range from 0.5% to 25% by weight, preferably from 1% to 20% by weight and more preferably from 2% to 15% by weight relative to the total weight of the composition.

[0050] The (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms may be selected from dipropylene glycol, pentylene glycol, hexylene glycol, and mixtures thereof.

[0051] The composition according to the invention may further comprise (d) at least one monovalent alcohol, preferably C 2-4 In this case, the weight ratio of the total amount of (b) diol having at least one carbon chain containing 3 or more carbon atoms and (d) monovalent alcohol having a total carbon atom count of 5 or 6 to the amount of (a) oil may be 4 or more, preferably 5 or more, and more preferably 6 or more.

[0052] The composition according to the present invention may have a turbidity of 120 NTU or less, preferably 90 NTU or less, and more preferably 60 NTU or less.

[0053] The composition according to the present invention may be a cosmetic composition, preferably a skin cosmetic composition, and more preferably a skin care cosmetic composition.

[0054] The invention also relates to a cosmetic method for treating keratinous substances, preferably the skin, comprising a step of applying a composition according to the invention.

[0055] Best Mode for Carrying Out the Invention

[0056] After diligent research, the inventors have discovered that by using a selected combination of oils and glycols, it is possible to provide a composition that is stable over time and that may exhibit a transparent or slightly translucent appearance.

[0057] Therefore, the present invention relates to a composition comprising:

[0058] (a) at least one oil;

[0059] (b) at least one diol having at least one carbon chain containing 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6; and

[0060] (c) water,

[0061] in

[0062] The (a) oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters and (vi) alkyl lactates, with the proviso that

[0063] - the (i) fatty alcohol and the (ii) fatty acid contain a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0064] - the (iii) monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0065] - the (iv) divalent carboxylic acid diester comprises at least one branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0066] - the (v) N-acylamino acid ester comprises a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0067] - the (vi) alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0068] as well as

[0069] The weight ratio of the amount of the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

[0070] The compositions according to the invention are stable over time and may exhibit a transparent or slightly translucent appearance.

[0071] The composition according to the invention is stable over time even under temperature variations (for example from hot to cold temperature and vice versa) such that it does not cause any phase separation while maintaining a homogeneous appearance.

[0072] The composition according to the invention comprises at least one oil. Thus, the composition according to the invention, when applied to the skin, can enhance the radiance of the skin.

[0073] The composition according to the invention may comprise a relatively large amount of oil. Thus, the composition according to the invention may provide better cosmetic effects resulting from a relatively larger amount of oil, such as further enhancing the radiance of the skin.

[0074] The composition according to the invention may also provide a light texture when used. Thus, the composition according to the invention may provide a less greasy texture.

[0075] The composition according to the invention may be transparent or slightly translucent, but is preferably transparent.

[0076] The composition according to the invention need not contain any surfactant. Thus, the amount of surfactant in the composition may be limited, for example 1 wt % or less, preferably 0.1 wt % or less, and more preferably 0.01 wt % or less relative to the total weight of the composition. Most preferably, the composition according to the invention does not contain a surfactant.

[0077] It is well known that surfactants can provide a greasy texture and irritation to the skin.

[0078] Thus, a composition according to the invention may provide an even less greasy texture if the composition according to the invention comprises only a limited amount of surfactant.

[0079] Furthermore, the composition according to the invention may provide less irritation to the skin if the composition according to the invention comprises only a limited amount of surfactant.

[0080] The composition according to the present invention will be explained in a more detailed manner hereinafter.

[0081] [Oil]

[0082] The composition according to the invention may comprise (a) at least one oil. If two or more oils are used, they may be the same or different.

[0083] Here, "oil" refers to a fatty compound or substance that is in a liquid or pasty (non-solid) form at room temperature (25°C) and atmospheric pressure (760 mmHg). As the oil, those generally used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile.

[0084] According to the present invention, (a) oil is selected from (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acyl amino acid esters and (vi) alkyl lactates under the following conditions:

[0085] - (i) fatty alcohols and (ii) fatty acids contain branched alkyl groups or straight or branched alkenyl groups, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0086] - (iii) the monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0087] - (iv) a divalent carboxylic acid diester comprising at least one, preferably two, branched alkyl groups having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0088] -(v) N-acylamino acid esters comprising a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0089] - (vi) The alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms.

[0090] In the present specification, "alkyl group" refers to a linear or branched monovalent saturated aliphatic hydrocarbon group.

[0091] As the straight-chain alkyl group having 4 to 30 carbon atoms, there can be mentioned, for example, n-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl, n-nonadecyl and n-eicosyl groups.

[0092] As the branched alkyl group having 4 to 30 carbon atoms, there can be mentioned, for example, an isobutyl group, a sec-butyl group, a tert-butyl group, an isopentyl group, a neopentyl group, an isohexyl group, a neohexyl group, an isoheptyl group, a neoheptyl group, an isooctyl group, an isononyl group, an isodecyl group, an isoundecyl group, an isododecyl group, an isotridecyl group, an isotetradecyl group, an isopentadecyl group, an isohexadecyl group, an isoheptadecyl group, an isooctadecyl group, an isonadecyl group, and an isoeicosyl group.

[0093] As the branched alkyl group having 3 to 10 carbon atoms, there can be mentioned, for example, isopropyl, isobutyl, sec-butyl, tert-butyl, isopentyl, neopentyl, isohexyl, neohexyl, isoheptyl, neoheptyl, isooctyl, isononyl, isodecyl.

[0094] In the present specification, the "alkenyl group" refers to a linear or branched monovalent unsaturated aliphatic hydrocarbon group having at least one carbon-carbon double bond.

[0095] As the straight-chain alkenyl group having 4 to 30 carbon atoms, for example, butenyl, pentenyl, hexenyl, heptenyl, heptadienyl, heptatrienyl, octenyl, octadienyl, octatrienyl, nonenyl, nonadienyl, nonatrienyl, decenyl, decadienyl, decatrienyl, undecenyl, undecadienyl, undecadienyl, dodecenyl, dodecadienyl, dodecatrienyl, tridecenyl, tridecenyl, tridecadi ... yl, tridecanyl, tetradecanyl, tetradecadienyl, tetradecadienyl, tetradecadienyl, tetradecadienyl, pentadecenyl, pentadecadienyl, pentadecadienyl, pentadecatrienyl, hexadecenyl, hexadecadienyl, hexadecadienyl, hexadecadienyl, heptadecatrienyl, heptadecenyl, heptadecadienyl, heptadecatrienyl, octadecenyl, octadecadienyl, octadecatrienyl, nonadecenyl, nonadecadienyl, nonadecatrienyl and eicosenyl.

[0096] As the branched alkenyl group having 4 to 30 carbon atoms, for example, isobutenyl, sec-butenyl, isopentenyl, isohexenyl, isoheptenyl, isooctenyl, isononenyl, isodecenyl, isodecadienyl, isodecatrienyl, isoundecenyl, isoundecadienyl, isoundectrienyl, isododecenyl, isododecadienyl, isododecatrienyl, isotridecenyl, isotridecadienyl, isotridecatrienyl, isotetradecenyl, isotridecatrienyl, isotridecatrienyl, isotetradecenyl, isotridecadienyl, isotridecatrienyl, isotridecatrienyl, isotetradecenyl, isotridecatri ... isodecadienyl, isodecadienyl, isodecadienyl, isodecadienyl, isodecadienyl, isodecadienyl, isopentadecenyl, isopentadecadienyl, isopentadectrienyl, isohexadecenyl, isohexadecadienyl, isohexadecatrien ...

[0097] In the present specification, "acyl group" means an R-CO-group, wherein R represents a linear or branched monovalent saturated aliphatic hydrocarbon group (alkyl group).

[0098] As the straight-chain or branched acyl group having 4 to 30 carbon atoms, for example, butyryl, isobutyryl, sec-butyryl, tert-butyryl, n-valeryl, isovaleryl, pivaloyl, n-hexanoyl, isohexanoyl, neohexanoyl, n-heptanoyl, isoheptanoyl, neoheptanoyl, n-octanoyl, isooctanoyl, n-nonanoyl, isononanoyl, n-decanoyl, isodecanoyl, n-undecanoyl, isoundecanoyl, n-dodecanoyl (lauroyl), isododecanoyl, n-dodecanoyl, isodi(dodecanoyl), n-tetradecanoyl (myristoyl), isotetradecanoyl, n-pentadecanoyl, isopentadecanoyl, n-hexadecanoyl (palmitoyl), isohexadecanoyl, n-heptadecanoyl, isohexadecanoyl, n-octadecanoyl (stearoyl), isooctadecanoyl, n-nonadecanoyl, isononadecanoyl, n-eicosanoyl and isoeicosanoyl can be mentioned.

[0099] (i) Fatty alcohols can be represented by the following general formula (1):

[0100] R 1 -OH (1)

[0101] in

[0102] R 1 represents a branched alkyl group, or a straight or branched alkenyl group, each having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms.

[0103] As examples of the branched alkyl group and the straight or branched alkenyl group each having 4 to 30 carbon atoms, those listed above can be mentioned.

[0104] As the (i) fatty alcohol represented by the formula (1), there may be mentioned, for example, 2-ethylhexanol, palmitoleyl alcohol, isostearyl alcohol, trans-octadecenyl alcohol, oleyl alcohol, linoleyl alcohol, ricinoleyl alcohol, erucyl alcohol, and a mixture thereof.

[0105] Preferably, the (i) fatty alcohol is selected from isostearyl alcohol, oleyl alcohol and mixtures thereof.

[0106] (ii) The fatty acid can be represented by the following general formula (2):

[0107] R 1 -COOH (2)

[0108] in

[0109] R 1 represents a branched alkyl group, or a straight or branched alkenyl group, each having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms.

[0110] As examples of the branched alkyl group and the straight or branched alkenyl group each having 4 to 30 carbon atoms, those listed above can be mentioned.

[0111] As the (ii) fatty acid represented by formula (2), there can be mentioned, for example, isocaproic acid, isononanoic acid, crotonic acid, isolauric acid, myristic acid, isopalmitic acid, palmitoleic acid, isostearic acid, elaidic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid, tetracosapentaenoic acid, docosahexaenoic acid, nervonic acid, and mixtures thereof.

[0112] Preferably, the (ii) fatty acid is selected from isostearic acid, oleic acid and mixtures thereof.

[0113] (iii) The monovalent carboxylic acid monoester can be represented by the following general formula (3):

[0114] R 2 -COO-R 3 (3)

[0115] in

[0116] R 2 represents a branched alkyl group, or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0117] R 3 represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms,

[0118] As examples of the branched alkyl group and the straight or branched alkenyl group each having 4 to 30 carbon atoms, those listed above can be mentioned.

[0119] As examples of the branched alkyl group having 3 to 10 carbon atoms, those listed above may be mentioned.

[0120] As the (iii) monovalent carboxylic acid monoester represented by formula (3), there can be mentioned, for example, isopropyl palmitate, isopropyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate and mixtures thereof.

[0121] It is preferred that the (iii) monovalent carboxylic acid monoester is isopropyl isostearate.

[0122] (iv) The divalent carboxylic acid diester can be represented by the following general formula (4):

[0123] R 2 -OC(=O)-R 4 -C(=O)OR 3 (4)

[0124] in

[0125] R 2 and R 3 independently represent a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and

[0126] R 4 represents a straight or branched alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0127] As examples of the branched alkyl group having 3 to 10 carbon atoms, those listed above may be mentioned.

[0128] As examples of the linear or branched alkylene group having 2 to 10 carbon atoms, there can be mentioned, for example, ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene and decylene.

[0129] Preferably, the (iv) divalent carboxylic acid diester is selected from diisopropyl adipate, diisopropyl sebacate and mixtures thereof.

[0130] (v) N-acylamino acid esters can be represented by the following general formula (5):

[0131] R 2 -N(R 5 )-CH(R 6 )-(CH2) n -COO-R 3 (5)

[0132] in

[0133] R 2represents a straight-chain or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0134] R 3 represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms,

[0135] R 5 represents a hydrogen atom, or a straight-chain or branched alkyl group having 1 to 4 carbon atoms,

[0136] R 6 represents a hydrogen atom, or a straight-chain or branched alkyl group having 1 to 4 carbon atoms, which may be substituted by a hydroxyl group or a phenyl group, and

[0137] n represents an integer from 0 to 2.

[0138] As examples of the linear or branched acyl group having 4 to 30 carbon atoms, those listed above can be mentioned.

[0139] As examples of the branched alkyl group having 3 to 10 carbon atoms, those listed above may be mentioned.

[0140] As examples of the linear or branched alkyl group having 1 to 4 carbon atoms, there may be mentioned a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group and a tert-butyl group.

[0141] As (v) the N-acylamino acid ester represented by the formula (5), there can be mentioned, for example, N-octanoylsarcosine isopropyl, N-decanoylsarcosine isopropyl, N-lauroylsarcosine isopropyl, N-coconut fatty acid acylsarcosine isopropyl (N-cocoylsarcosine isopropyl), N-myristoylsarcosine isopropyl, N-palmitoylsarcosine isopropyl, N-stearoylsarcosine isopropyl, N-octanoylsarcosine isobutyl, N-decanoylsarcosine isobutyl, N-lauroylsarcosine isobutyl, N-coconut fatty acid acylsarcosine isopropyl (N-cocoylsarcosine isopropyl), N-myristoylsarcosine isopropyl, N-palmitoylsarcosine isopropyl, N-stearoylsarcosine isobutyl, N-octanoylsarcosine isopropyl, N-decanoylsarcosine isobutyl, N-lauroylsarcosine isobutyl, N-octanoylglycine isopropyl, N-decanoylglycine isopropyl, N-lauroylsarcosine isobutyl Isopropyl glycine, isopropyl N-cocoyl glycine (isopropyl N-cocoyl glycine), isopropyl N-myristoyl glycine, isopropyl N-palmitoyl glycine, isopropyl N-stearoyl glycine, isopropyl N-capryloyl alanine, isopropyl N-decanoyl alanine, isopropyl N-lauroyl alanine, isopropyl N-cocoyl fatty acid acyl alanine (isopropyl N-cocoyl alanine), isopropyl N-myristoyl alanine, isopropyl N-palmitoyl alanine, isopropyl N-stearoyl alanine, isopropyl N-lauroyl-β-alanine, isopropyl N-lauroyl-N-methyl-β-alanine, isopropyl N-cocoyl fatty acid acyl-N-methyl-B-alanine (isopropyl N-cocoyl-N-methyl-β-alanine), etc.

[0142] Preferably, the (v) N-acylamino acid ester is isopropyl lauroyl sarcosinate. As isopropyl lauroyl sarcosine, commercially available products can be used, for example, Ajinomoto's SL-205.

[0143] (vi) Alkyl lactate can be represented by the following general formula (6):

[0144] CH3-C(OH)-COO-R 7 (6)

[0145] in

[0146] R 7 represents a straight chain or branched chain alkyl group or a straight chain or branched chain alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms.

[0147] As examples of the straight-chain or branched-chain alkyl group or the straight-chain or branched-chain alkenyl group each having 4 to 30 carbon atoms, those listed above can be mentioned.

[0148] As examples of (vi) the alkyl lactate represented by formula (6), there can be mentioned, for example, decyl lactate, octyl lactate, lauryl lactate, myristyl lactate, palmityl lactate, stearyl lactate, isostearyl lactate, oleyl lactate and linoleyl lactate.

[0149] Preferably, the (vi) alkyl lactate is selected from lauryl lactate, isostearyl lactate and mixtures thereof.

[0150] The amount of (a) oil in the composition according to the present invention may be 0.5 wt% or more, preferably 1 wt% or more, and more preferably 2 wt% or more, relative to the total weight of the composition.

[0151] On the other hand, the amount of (a) oil in the composition according to the present invention may be 25 wt% or less, preferably 20 wt% or less, and more preferably 15 wt% or less, relative to the total weight of the composition.

[0152] Thus, the amount of (a) oil in the composition according to the invention may range from 0.5% to 25% by weight, preferably from 1% to 20% by weight and more preferably from 2% to 15% by weight relative to the total weight of the composition.

[0153] [Diol]

[0154] The composition according to the present invention comprises at least one (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms. Two or more (b) diols having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms may be used.

[0155] Here, the term "diol" refers to a compound having two alcohol functional groups. In other words, a diol is an alcohol having two hydroxyl groups.

[0156] The number of carbon atoms in the carbon chain can be 5 or 6.

[0157] The carbon chain containing 3 or more carbon atoms in component (b) may be straight or branched. The carbon chain may not be interrupted by heteroatoms such as oxygen atoms, sulfur atoms and nitrogen atoms. The carbon chain may therefore contain continuous carbon atoms.

[0158] It is preferred that the number of carbon chains containing 3 or more carbon atoms in component (b) is 1 or 2.

[0159] The total number of carbon atoms in component (b) is 5 or 6.

[0160] The (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms may have a divalent straight or branched hydrocarbon group. The divalent straight or branched hydrocarbon group that may be present in component (b) may be saturated or unsaturated. It is preferred that the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms contains a divalent straight or branched saturated hydrocarbon group, and more preferably a straight or branched alkylene group, such as propylene, pentylene and hexylene.

[0161] The (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms may have a linear, branched or cyclic molecular structure as long as it has a carbon chain containing 3 or more carbon atoms and a total of 5 or 6 carbon atoms.

[0162] The (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms may be a C 5-6 Diol.

[0163] Preferably, the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms is selected from dipropylene glycol, pentylene glycol, hexylene glycol and mixtures thereof.

[0164] More preferably, the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms is selected from pentanediol, hexanediol and mixtures thereof.

[0165] The amount of (b) diol having a total number of 5 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms in the composition according to the present invention can be 40% by weight or more, preferably 50% by weight or more, more preferably 60% by weight or more, and even more preferably 70% by weight or more, relative to the total weight of the composition.

[0166] The amount of (b) diol having a total carbon atom count of 6 and having at least one carbon chain containing 3 or more carbon atoms in the composition according to the present invention may be 60 wt% or more, and preferably 70 wt% or more relative to the total weight of the composition.

[0167] On the other hand, the amount of (b) diol having a total number of carbon atoms of 5 or 6 and having at least one carbon chain containing 3 or more carbon atoms in the composition according to the present invention can be 85 wt % or less, preferably 80 wt % or less, and more preferably 75 wt % or less, relative to the total weight of the composition.

[0168] [Diol / oil weight ratio]

[0169] The weight ratio of the amount of (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

[0170] On the other hand, the weight ratio of the amount of (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of (a) oil may be 20 or less, preferably 15 or less, and more preferably 10 or less.

[0171] Therefore, the weight ratio of the amount of (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of (a) oil may be 4 to 20, preferably 5 to 15, and more preferably 6 to 10.

[0172] [water]

[0173] The composition according to the present invention comprises (c) water.

[0174] The amount of (c) water in the composition according to the present invention may be 10 wt% or more, preferably 15 wt% or more, and more preferably 20 wt% or more, relative to the total weight of the composition.

[0175] On the other hand, the amount of (c) water in the composition according to the present invention may be 60 wt% or less, preferably 55 wt% or less, and more preferably 50 wt% or less, relative to the total weight of the composition.

[0176] The amount of (c) water in the composition according to the invention may range from 10% to 60% by weight, preferably from 15% to 55% by weight, more preferably from 20% to 50% by weight, relative to the total weight of the composition.

[0177] [Monovalent alcohol]

[0178] The composition according to the present invention may further comprise (d) at least one monovalent alcohol. Two or more such alcohols may be used in combination. Thus, a single type of such alcohol or a combination of different types of such alcohols may be used.

[0179] (d) The monovalent alcohol is preferably heated at ambient temperature (e.g., 25° C.) and atmospheric pressure (760 mmHg or 10 5 Pa) in liquid form.

[0180] The term "monovalent alcohol" herein refers to an alcohol having one hydroxyl group.

[0181] (d) The monovalent alcohol may be non-aromatic (aliphatic) or aromatic.

[0182] The non-aromatic monovalent alcohol is preferably a saturated or unsaturated, linear or branched lower aliphatic monovalent alcohol, more preferably a C2-C6 aliphatic monovalent alcohol, even more preferably a saturated or unsaturated, linear or branched C2-C5 aliphatic monovalent alcohol, and most preferably a saturated or unsaturated, linear or branched C2-C4 aliphatic monovalent alcohol. Preferred non-aromatic monovalent alcohols are ethanol, isopropanol and mixtures thereof.

[0183] The aromatic monovalent alcohol is preferably selected from the group consisting of benzyl alcohol, phenylethyl alcohol, diphenylethyl alcohol, cinnamyl alcohol, tryptophan, 3-nitrobenzyl alcohol, veratrol, benzoin and mixtures thereof.

[0184] It is preferred that the (d) monovalent alcohol is not an aliphatic alcohol or a higher alcohol.

[0185] Preferably (d) the monovalent alcohol is C 2-4 More preferably, the (d) monovalent alcohol is ethanol.

[0186] The amount of (d) the monovalent alcohol in the composition according to the present invention may be 1 wt% or more, preferably 5 wt% or more, and more preferably 10 wt% or more, relative to the total weight of the composition.

[0187] On the other hand, the amount of (d) the monovalent alcohol in the composition according to the present invention may be 60 wt % or less, preferably 55 wt % or less, and more preferably 50 wt % or less, relative to the total weight of the composition.

[0188] The amount of (d) monovalent alcohol in the composition according to the present invention may be 1 to 60% by weight, preferably 5 to 55% by weight, and more preferably 10 to 50% by weight relative to the total weight of the composition.

[0189] The weight ratio of the total amount of (b) diols having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms and (d) monovalent alcohols to the amount of (a) oil can be 4 or more, preferably 5 or more, and more preferably 6 or more.

[0190] The weight ratio of the total amount of (b) diols having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms and (d) monovalent alcohols to the amount of (a) oil can be 20 or less, preferably 15 or less, and more preferably 10 or less.

[0191] The weight ratio of the total amount of (b) diols having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms and (d) monovalent alcohols to the amount of (a) oil can be 4 to 20, preferably 5 to 15, and more preferably 6 to 10.

[0192] [Optional Ingredients]

[0193] The composition according to the invention may further comprise at least one optional ingredient commonly used in the cosmetic field, selected for example from film-forming polymers, solvents, dyes, pigments, UV filters, antioxidants, preservatives, pH adjusters and mixtures thereof.

[0194] The composition according to the invention may comprise one or several cosmetically acceptable organic solvents, which may be other glycols in addition to ingredient (b), such as ethylene glycol; other polyols, such as glycerol, sugars and sugar alcohols; and ethers, such as ethylene glycol monomethyl ether, monoethyl ether and monobutyl ether, propylene glycol monomethyl ether, monoethyl ether and monobutyl ether, and butylene glycol monomethyl ether, monoethyl ether and monobutyl ether.

[0195] The amount of the organic solvent in the composition according to the present invention may be 0.01 wt % or more, preferably 0.1 wt % or more, and more preferably 1 wt % or more, relative to the total weight of the composition.

[0196] On the other hand, the amount of the organic solvent in the composition according to the present invention may be 30 wt % or less, preferably 20 wt % or less, and more preferably 10 wt % or less, relative to the total weight of the composition.

[0197] Therefore, the amount of organic solvent in the composition according to the present invention may be 0.01% to 30% by weight, preferably 0.1% to 20% by weight, and more preferably 11% to 10% by weight relative to the total weight of the composition.

[0198] (preparation)

[0199] The composition according to the present invention can be prepared by mixing the essential ingredients as described above and the optional ingredients as described above, if desired.

[0200] There is no limitation on the method and means of mixing the above essential and optional ingredients.Any conventional method and means may be used for mixing the above essential and optional ingredients to prepare the composition according to the present invention.

[0201] [form]

[0202] There is no restriction on the form of the composition according to the present invention.

[0203] The composition according to the present invention may be thermodynamically stable and may be considered a single-phase composition.

[0204] The composition according to the invention may be transparent.

[0205] Transparency can be measured by measuring turbidity (for example, turbidity can be measured using a 2100Q (sold by Hach Company) with a round cell (25 mm in diameter and 60 mm in height) and a tungsten lamp that emits visible light (between 400 and 800 nm, preferably 400 to 500 nm). The measurement can be performed on the undiluted composition. A blank can be determined with distilled water.

[0206] The composition according to the present invention has a turbidity of 120 NTU or less, preferably 90 NTU or less, and more preferably 60 NTU or less.

[0207] [Methods and Uses]

[0208] Preferably, the composition according to the invention is a cosmetic or dermatological composition, preferably a skin cosmetic composition and more preferably a skin care cosmetic composition.

[0209] The composition according to the invention can be used in a non-therapeutic method of treating the skin, such as a cosmetic method, by application to the skin.

[0210] The invention therefore also relates to a cosmetic method for treating keratinous materials, such as the skin, comprising a step of applying to the keratinous materials a composition according to the invention.

[0211] The invention may also relate to the use of a composition according to the invention as or in a cosmetic product, such as a skin care product.

[0212] In other words, the composition according to the present invention can be used as a cosmetic product as it is. Alternatively, the composition according to the present invention can be used as an element of a cosmetic product. For example, the composition according to the present invention can be added to any other element or combined with any other element to form a cosmetic product.

[0213] Skin care products can be lotions, creams, serums, etc.

[0214] Another aspect of the present invention also relates to a method for preparing a composition, the method comprising the steps of mixing:

[0215] (a) at least one oil;

[0216] (b) at least one diol having at least one carbon chain containing 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6; and

[0217] (c) water,

[0218] in

[0219] The (a) oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters and (vi) alkyl lactates, with the proviso that

[0220] - the (i) fatty alcohol and the (ii) fatty acid contain a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0221] - the (iii) monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0222] - the (iv) divalent carboxylic acid diester comprises at least one branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0223] - the (v) N-acylamino acid ester comprises a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0224] - the (vi) alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0225] as well as

[0226] The weight ratio of the amount of the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

[0227] Preferably the mixing step is carried out by a so-called low energy method without special mechanical stirrers such as homogenizers which use a lot of energy. The low energy method can be carried out by simply gently stirring ingredients (a) to (c).

[0228] Another aspect of the invention relates to the use of the following in a composition to make the composition stable and transparent or slightly translucent:

[0229] (a) at least one oil; and

[0230] (b) at least one diol having at least one carbon chain comprising 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6,

[0231] The composition comprises

[0232] (c) water,

[0233] in

[0234] The (a) oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters and (vi) alkyl lactates, with the proviso that

[0235] - the (i) fatty alcohol and the (ii) fatty acid contain a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0236] - the (iii) monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0237] The (iv) divalent carboxylic acid diester comprises at least one branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0238] - the (v) N-acylamino acid ester comprises a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0239] - the (vi) alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0240] as well as

[0241] The weight ratio of the amount of the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

[0242] The above descriptions of ingredients (a) to (c) and optional ingredients of the composition according to the invention are applicable to those of the uses and methods according to the invention. The descriptions of the preparation and form of the composition according to the invention are also applicable to those of the compositions described in the above uses and methods. Example

[0243] The present invention will be described in more detail by way of examples, which, however, should not be construed as limiting the scope of the present invention.

[0244] [Examples 1-32 and Comparative Examples 1-46]

[0245] The following compositions according to Examples 1-32 and Comparative Examples 1-46 shown in Tables 1-9 were prepared by mixing the components shown in Tables 1-9 as follows. The numerical values ​​of the amounts of the components shown in Tables 1-9 are all based on "weight %" as active raw materials.

[0246] The weight ratio of the amount (weight) of diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount (weight) of oil in each composition (diol / oil) is shown in the "Diol to Oil Ratio" row in Tables 1-4 and 6-9.

[0247] The weight ratio of the total amount (weight) of diols and monovalent alcohols having a total number of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount (weight) of the oil component in each composition ((diol+alcohol) / oil)) is shown in the "Diol+alcohol to oil ratio" row in Table 5.

[0248]

[0249] Table 2

[0250]

[0251]

[0252] Table 4

[0253]

[0254] Table 5

[0255]

[0256]

[0257]

[0258]

[0259]

[0260]

[0261] Table 9

[0262]

[0263] [Evaluate]

[0264] (Appearance)

[0265] The appearance of each composition according to Examples 1 to 32 and Comparative Examples 1 to 46 was evaluated based on the following criteria by visually observing the appearance of the compositions kept at 55° C. for 2 weeks and at 4° C. for 2 weeks.

[0266] Good: Even

[0267] Poor: Uneven (phase separation is discernible)

[0268] The results are shown in Tables 1-9.

[0269] (Turbidity)

[0270] The turbidity of each composition according to Examples 1 to 32 and Comparative Examples 1 to 46 kept at 55° C. for 2 weeks and at 4° C. for 2 weeks was evaluated by 2100Q (Hach Company) at room temperature (20 to 25° C.).

[0271] The results are shown in Tables 1-9.

[0272] (stability)

[0273] The stability of each composition according to Examples 1 to 32 and Comparative Examples 1 to 46 was evaluated by visually observing the appearance of the compositions kept at 55° C. for 2 weeks and at 4° C. for 2 weeks based on the following criteria.

[0274] Good: Transparent

[0275] Poor: Opaque

[0276] The results of the stability evaluation are shown in Tables 1-9.

[0277] [Summarize]

[0278] Table 1 shows

[0279] The weight ratio of the amount of (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of (a) oil should be 4 or more, preferably 5 or more, and more preferably 6 or more.

[0280] Tables 2 and 3 show that the (b) diol should have at least one carbon chain containing 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6.

[0281] Table 4 shows that a mixture of (b) diols can provide the desired effects of the present invention if the weight ratio of the amount of (b) diol to the amount of (a) oil is 4 or more.

[0282] Table 5 shows that a composition comprising (d) a monovalent alcohol can provide the desired effects of the present invention if the weight ratio of the total amount of (b) diol and (d) monovalent alcohol to the amount of (a) oil is 4 or more.

[0283] Table 6 shows that (i) fatty alcohols having a branched alkyl group or a linear or branched alkenyl group each having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms should be used.

[0284] Table 7 shows that (ii) fatty acids having a branched alkyl group or a linear or branched alkenyl group each having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms should be used.

[0285] Table 8 shows that (iii) monovalent carboxylic acid monoesters having a branched alkyl group or a straight or branched alkenyl group, each having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, (iv) divalent carboxylic acid diesters having at least one branched alkyl group, the branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and (v) N-acyl amino acid esters having a branched alkyl group and a straight or branched acyl group, the branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and the straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms should be used.

[0286] Table 9 shows that (iv) alkyl lactates having a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, should be used.

[0287] Thus, Tables 1-9 show that the use of the following in the composition can make the composition stable and transparent:

[0288] (a) at least one oil; and

[0289] (b) at least one diol having at least one carbon chain comprising 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6,

[0290] The composition comprises

[0291] (c) water,

[0292] in

[0293] The (a) oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters and (vi) alkyl lactates, with the proviso that

[0294] - the (i) fatty alcohol and the (ii) fatty acid contain a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0295] - the (iii) monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0296] - the (iv) divalent carboxylic acid diester comprises at least one branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms,

[0297] - the (v) N-acylamino acid ester comprises a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and

[0298] - the (vi) alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms,

[0299] as well as

[0300] The weight ratio of the amount of the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

Claims

1. A composition comprising: (a) at least one oil; (b) at least one diol having at least one carbon chain containing 3 or more carbon atoms, wherein the total number of carbon atoms is 5 or 6; and (c) water, in The (a) oil is selected from the group consisting of (i) fatty alcohols, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acylamino acid esters and (vi) alkyl lactates, with the proviso that - the (i) fatty alcohol and the (ii) fatty acid contain a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, - the (iii) monovalent carboxylic acid monoester contains a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, - the (iv) divalent carboxylic acid diester comprises at least one branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and an alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms, - the (v) N-acylamino acid ester comprises a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and a straight or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and - the (vi) alkyl lactate contains a linear or branched alkyl group or a linear or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, as well as The weight ratio of the amount of the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

2. The composition according to claim 1, wherein the (i) fatty alcohol is represented by the following general formula (1): R 1 -OH(1) in R 1 represents a branched alkyl group, or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, as well as The (i) fatty alcohol is preferably selected from isostearyl alcohol, oleyl alcohol and a mixture thereof.

3. The composition according to claim 1 or 2, wherein the (ii) fatty acid is represented by the following general formula (2): R 1 -COOH(2) in R 1 represents a branched alkyl group, or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, as well as The (ii) fatty acid is preferably selected from isostearic acid, oleic acid and a mixture thereof.

4. The composition according to any one of claims 1 to 3, wherein the (iii) monovalent carboxylic acid monoester is represented by the following general formula (3): R 2 -COO-R 3 (3) in R 2 represents a branched alkyl group or a straight or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, and R 3 represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, as well as The (iii) monovalent carboxylic acid monoester is preferably isopropyl isostearate.

5. The composition according to any one of claims 1 to 4, wherein the (iv) divalent carboxylic acid diester is represented by the following general formula (4): R 2 -OC(=O)-R 4 -C(=O)OR 3 (4) in R 2 and R 3 independently represent a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, and R 4 represents a straight or branched alkylene group having 6 to 18 carbon atoms, preferably 6 to 14 carbon atoms, and more preferably 6 to 10 carbon atoms, as well as The (iv) divalent carboxylic acid diester is preferably selected from diisopropyl adipate, diisopropyl sebacate and a mixture thereof.

6. The composition according to any one of claims 1 to 5, wherein the (v) N-acyl amino acid ester is represented by the following general formula (5): R 2 -N(R 5 )-CH(R 6 )-(CH2) n -COO-R 3 (5) in R 2 represents a straight chain or branched chain acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, R 3 represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, and more preferably 3 to 6 carbon atoms, R 5 represents a hydrogen atom, or a straight-chain or branched alkyl group having 1 to 4 carbon atoms, R 6 represents a hydrogen atom, or a straight-chain or branched alkyl group having 1 to 4 carbon atoms, which may be substituted by a hydroxyl group or a phenyl group, and n represents an integer from 0 to 2, as well as The (v) N-acyl amino acid ester is preferably isopropyl lauroyl sarcosinate.

7. The composition according to any one of claims 1 to 6, wherein the (vi) alkyl lactate is represented by the following general formula (6): CH3-C(OH)-COO-R 7 (6) in R 7 represents a straight chain or branched alkyl group or a straight chain or branched alkenyl group, each of which has 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, and more preferably 6 to 22 carbon atoms, as well as The (vi) alkyl lactate is preferably selected from lauryl lactate, isostearyl lactate and a mixture thereof.

8. The composition according to any one of claims 1 to 7, wherein the amount of the (a) oil in the composition is 0.5 to 25% by weight, preferably 1 to 20% by weight, and more preferably 2 to 15% by weight, relative to the total weight of the composition.

9. A composition according to any one of claims 1 to 8, wherein the (b) diol having a total of 5 or 6 carbon atoms and having at least one carbon chain containing 3 or more carbon atoms is selected from dipropylene glycol, pentylene glycol, hexylene glycol and mixtures thereof.

10. The composition according to any one of claims 1 to 9, wherein the composition further comprises (d) at least one monovalent alcohol, preferably C 2-4 An aliphatic monovalent alcohol, and more preferably ethanol.

11. The composition according to claim 10, wherein the weight ratio of the total amount of the (b) diol having a total carbon atom count of 5 or 6 and having at least one carbon chain containing 3 or more carbon atoms and the (d) monovalent alcohol to the amount of the (a) oil is 4 or more, preferably 5 or more, and more preferably 6 or more.

12. The composition according to any one of claims 1 to 11, wherein the composition has a turbidity of 120 NTU or less, preferably 90 NTU or less, and more preferably 60 NTU or less.

13. The composition according to any one of claims 1 to 12, wherein the composition is a cosmetic composition, preferably a skin cosmetic composition, and more preferably a skin care cosmetic composition.

14. A cosmetic method for treating keratinous materials, preferably the skin, comprising the step of applying to said keratinous materials a composition according to any one of claims 1 to 13.

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