COMPOSITION INCLUDES SELECTED OIL AND DIOL

Abstract

COMPOSITION COMPRISING SELECTED OIL AND DIOL 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, with a total number of carbon atoms of 5 or 6; and (c) water, wherein: the oil (a) is selected from the group consisting of: (i) fatty alcohols, (ii) fatty acids, (iii) monovalent monoesters of carboxylic acid, (iv) divalent diesters of carboxylic acid, (v) amino acid esters of N-acyl, and (vi) alkyl lactates, 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, with a total number of carbon atoms of 5 or 6, relative to the amount of (a) oil is 4 or more, preferably 5 or more, and preferably 6 or more.The composition according to the present invention is stable over time and may have a transparent or slightly translucent appearance. Figure for the abstract: none.

Description

Title of the invention: COMPOSITION COMPRISING SELECTED OIL AND DIOL technical field

[0001] The present invention relates to a composition, preferably a cosmetic composition and, even better, a cosmetic composition for the skin. PREVIOUS STATE OF TECHNOLOGY

[0002] Oil-in-water (O / W) and water-in-oil (W / O) emulsions are well known in the fields of cosmetics and dermatology, particularly for the preparation of cosmetic products such as milks, creams, toners, serums, and lotions. In particular, a fine emulsion such as a nano- or micro-O / W emulsion is especially desirable due to its transparent or slightly translucent appearance.

[0003] Generally, fine emulsions can be formed using a surfactant. For example, WO 2014 / 98265 discloses a nano- or micro-emulsion formed by the use of a combination of certain surfactants. DISCLOSURE OF THE INVENTION

[0004] However, fine emulsions are sometimes unstable over time, particularly in the case of temperature changes, for example, changes from hot to cold temperatures and vice versa, so that they cause phase separation, and do not have a transparent or slightly translucent appearance.

[0005] The present invention aims to provide a composition that is stable over time and can have a transparent or slightly translucent appearance.

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

[0007] (a) at least one oil;

[0008] (b) at least one diol having at least one carbon chain comprising 3 atoms of carbon or more with a total number of carbon atoms of 5 or 6 and

[0009] (c) water;

[0010] in which

[0011] (a) the oil may be chosen from the group consisting of: (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, provided that

[0012] - (i) fatty alcohols and (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26, and, Better still, 6 to 22 carbon atoms,

[0013] - (iii) monovalent carboxylic acid monoesters comprise a group branched alkyl or linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0014] - (iv) divalent carboxylic acid diesters comprise at least one group a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and an alkylene group having 6 to 18, preferably 6 to 14 and, better still, 6 to 10 carbon atoms,

[0015] (v) n-acyl amino acid esters comprise a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and

[0016] - (vi) alkyl lactates comprise a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0017] and

[0018] The weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil may be 4 or more, preferably 5 or more, and better still, 6 or more.

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

[0020] R'-OH (1)

[0021] in which

[0022] R1 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, even better, 6 to 22 carbon atoms. Preferably, (i) the fatty alcohol is selected from the group consisting of isostearyl alcohol, oleyl alcohol, and a mixture thereof.

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

[0024] R'-COOH (2)

[0025] in which

[0026] R1 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26, and even better, 6 to 22 carbon atoms. Preferably (ii) the fatty acid is selected from the group consisting of isostearic acid, oleic acid, and a mixture thereof.

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

[0028] R2-COO-R3 (3)

[0029] in which

[0030] R2 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, even better, 6 to 22 carbon atoms and

[0031] R3 represents a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms. Preferably (iii) the monovalent carboxylic acid monoester is isopropyl isostearate.

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

[0033] R2-OC(=O)-R4-C(=O)O-R3 (4)

[0034] in which

[0035] R2 and R3 independently represent a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms, and

[0036] R4 represents a linear or branched alkylene group having 6 to 18, preferably 6 to 14 and, even better, 6 to 10 carbon atoms. Preferably (iv) the divalent carboxylic acid diester is selected from the group consisting of diisopropyl adipate, diisopropyl sebacate, and a mixture thereof.

[0037] (v) The n-acyl amino acid ester can be represented by the following general formula (5):

[0038] R2-N(R5)-CH(R6)-(CH2)n-COO-R3 (5)

[0039] in which

[0040] R2 represents a linear or branched acyl group, having 4 to 30, preferably 5 to 26 and, even better, 6 to 22 carbon atoms,

[0041] R3 represents a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms,

[0042] R5 represents a hydrogen atom, or a linear or branched alkyl group having 1 to 4 carbon atoms,

[0043] R6 represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms that can be substituted by a hydroxyl group or a phenyl group and

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

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

[0046] CH3-C(OH)-COO-R7(6)

[0047] in which

[0048] R7 represents a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26, and even better, 6 to 22 carbon atoms. Preferably, (vi) the alkyl lactate is selected from the group consisting of lauryl lactate, isostearyl lactate, and a mixture thereof.

[0049] The quantity of (a) oils in the composition according to the present invention may be between 0.5% and 25% by weight, preferably between 1% and 20% by weight and, even better, between 2% and 15% by weight, relative to the total weight of the composition.

[0050] The (b) diol having at least one carbon chain comprising 3 or more carbon atoms with the total number of carbon atoms of 5 or 6 may be selected from the group consisting of dipropylene glycol, pentylene glycol, hexylene glycol and a mixture of the latter.

[0051] The composition according to the present invention may further comprise (d) at least one monovalent alcohol, preferably a monovalent C2-4 aliphatic alcohol, and more preferably ethanol. The weight ratio of the amount of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the amount (a) of oil may be 4 or more, preferably 5 or more, and even better 6 or more.

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

[0053] The composition according to the present invention can be a cosmetic composition, preferably a cosmetic composition for the skin and, even better, a cosmetic composition for skin care.

[0054] The present invention also relates to a cosmetic process for treating a keratinous substance, preferably skin, comprising the step of applying the composition according to the present invention. Best embodiment of the invention

[0055] After extensive research, the inventors discovered that it is possible to provide a composition that is stable over time and can have a transparent or slightly translucent appearance, using a combination of selected oil and diol.

[0056] Therefore, the present invention relates to a composition comprising:

[0057] (a) at least one oil;

[0058] (b) at least one diol having at least one carbon chain comprising 3 atoms of carbon or more with a total number of carbon atoms of 5 or 6 and

[0059] (c) water;

[0060] in which

[0061] (a) the oil may be chosen from the group consisting of: (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, provided that

[0062] - (i) fatty alcohols and (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0063] - (iii) monovalent carboxylic acid monoesters comprise a group branched alkyl or linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0064] - (iv) the divalent carboxylic acid diesters comprise at least one group a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and an alkylene group having 6 to 18, preferably 6 to 14 and, better still, 6 to 10 carbon atoms,

[0065] - (v) n-acyl amino acid esters comprise a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and

[0066] - (vi) alkyl lactates comprise a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0067] and

[0068] The weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil may be 4 or more, preferably 5 or more, and better still, 6 or more.

[0069] The composition according to the present invention is stable over time and may have a transparent or slightly translucent appearance.

[0070] The composition according to the present invention is stable over time, even with temperature changes, for example, changes from hot to cold temperatures and vice versa, so that they do not cause phase separation, while maintaining a uniform appearance.

[0071] The composition according to the present invention comprises at least one oil. Therefore, the composition according to the present invention can improve the radiance of the skin when applied to the skin.

[0072] The composition according to the present invention may include a relatively large quantity of oil. Consequently, the composition according to the present invention may provide improved cosmetic effects derived from the relatively larger quantity of oil, such as added skin radiance.

[0073] The composition according to the present invention can also provide a fresh texture when used. Thus, the composition according to the present invention can provide a less greasy texture.

[0074] The composition according to the present invention may be transparent or slightly translucent, but preferably transparent.

[0075] The composition according to the present invention does not have to include a surfactant. Thus, the amount of surfactant(s) in the composition can be limited, for example, to 1% by weight or less, preferably 0.1% by weight or less, and even better, 0.01% by weight or less, relative to the total weight of the composition. It is preferable that the composition according to the present invention not include any surfactant.

[0076] It is well known that surfactants can impart a greasy texture and stimulation to the skin.

[0077] Thus, if the composition according to the present invention comprises only a limited amount of surfactant(s), the composition according to the present invention can provide an even less greasy texture.

[0078] Furthermore, if the composition according to the present invention comprises only a limited amount of surfactant(s), the composition according to the present invention may provide less stimulation to the skin.

[0079] The composition according to the present invention will be explained in more detail below.

[0080] [Oil]

[0081] The composition according to the present invention may comprise (a) at least one oil. If two or more oils are used, they may be identical or different.

[0082] The term "oil" here refers to a compound or fatty substance that is in the form of a liquid or a paste (not solid) at room temperature (25°C) under atmospheric pressure (760 mmHg). Oils commonly used in cosmetics may be used alone or in combination. These oils may be volatile or non-volatile.

[0083] According to the present invention, (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-acyl amino acid esters and (vi) alkyl lactates, under the following conditions: - (i) fatty alcohols and (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, - (iii) monovalent carboxylic acid monoesters comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, - the (iv) divalent carboxylic acid diesters comprise at least one, preferably two, branched alkyl groups having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and an alkylene group having 6 to 18, preferably 6 to 14 and, better still, 6 to 10 carbon atoms, - (v) n-acyl amino acid esters comprise a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and - the (vi) alkyl lactates comprise a linear or branched alkyl group or a linear or branched alkyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms.

[0084] In this specification, the "alkyl group" means a linear or branched monovalent saturated aliphatic hydrocarbon group.

[0085] As a linear alkyl group having 4 to 30 carbon atoms, one may mention, for example, an n-butyl group, an n-pentyl group, an n-hexyl group, an n-heptyl group, an n-octyl group, an n-nonyl group, an n-decyl group, an n-undecyl group, an n-dodecyl group, an n-tridecyl group, an n-tetradecyl group, an n-pentadecyl group, an n-hexadecyl group, an n-heptadecyl group, an n-octadecyl group, an n-nonadecyl group and an n-eicosyl group.

[0086] As a branched alkyl group having 4 to 30 carbon atoms, one may mention, 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 isonyl group, an isonocyl group, an isodecyl group, an iso-undecyl group, an isododecyl group, an isotridecyl group, an isotetradecyl group, an isopentadecyl group, an isohexadecyl group, an isoheptadecyl group, an isooctadecyl group, an isooctadecyl group, an isononadecyl group, an isoicosyl group.

[0087] As branched alkyl groups having 3 to 10 carbon atoms, one may mention, for example, an isopropyl group, 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 isooctyl group, an isononyl group and an isodecyl group.

[0088] In this specification, the "alkenyl group" means a monovalent, unsaturated, linear or branched aliphatic hydrocarbon group having at least one carbon-carbon double bond.

[0089] As a linear alkenyl group having 4 to 30 carbon atoms, reference may be made, for example, to a butenyl group, a hexenyl group, a heptenyl group, a heptadienyl group, a heptatrienyl group, an octenyl group, an octadienyl group, an octratrienyl group, a nonenyl group, a nonadienyl group, a nonatrienyl group, a decenyl group, a decadienyl group, a decatrienyl group, an undecenyl group, an undecadienyl group, an undecatrienyl group, an undecatrienyl group, a dodecenyl group, a group dodecadienyl, dodecatrienyl group, tridecenyl group, tridecadienyl group, tridecatrienyl group, tetradecenyl group, tetradecadienyl group, tetradecadienyl group, tetradecadienyl group, tetradecatrienyl group, pentadecenyl group, pentadecadienyl group, pentadecatrienyl group, hexadecenyl group, hexadecadienyl group, hexadecatrienyl group, heptadecenyl group, heptadecadienyl group, heptadecatrienyl group, octadecenyl group, octadecadienyl group, octadecatrienyl group, nonadecenyl group, nonadecadienyl group of a nonade-catrienylr group and an eicosenyl group.

[0090] As a branched alkenyl group having 4 to 30 carbon atoms, reference may be made, for example, to an isobutenyl group, a sec-butenyl group, an isopentenyl group, an isohexenyl group, an isoheptenyl group, an isooctenyl group, an isononenyl group, an isodecenyl group, an isodecadienyl group, an isodecatrienyl group, an isoundecenyl group, an isoundecadienyl group, an isoundecatrienyl group, an isododecenyl group, an isododecadienyl group, an isododecadienyl group, an isododecadienyl group, an isododecatienyl group, an isododecatienyl group, an isotridecatienyl group, an isotridecatienyl group, of an isotetradecenyl group, an isotetradecadienyl group, an isotetradecadienyl group, an isotetradecatrienyl group, an isopentadecenyl group, an isopentadecadienyl group, an isopentadecatrienyl group, an isohexadecenyl group, an isohexadecadienyl group, an isohexadecatrienyl group, an isoheptadecenyl group,of an isoheptadecadienyl group, an isoheptadecatrienyl group, an isooctadecenyl group, an isooctadecadienyl group, an isooctadecatrienyl group, an isononadecenyl group, an isononadecadienyl group, an isononadecatrienyl group, and an isoeicosenyl group.

[0091] In this specification, the "acyl group" refers to the R-CO- group, in which R denotes a linear or branched monovalent saturated aliphatic hydrocarbon group (alkyl group).

[0092] As a linear or branched acyl group having 4 to 30 carbon atoms, reference may be made, for example, to a butanoyl group, an iso-butanoyl group, a sec-butanoyl group, a tert-butanoyl group, an n-pentanoyl group, an isopentanoyl group, a neopentanoyl group, an n-hexanoyl group, an isohexanoyl group, a neohexanoyl group, an n-heptanoyl group, an isoheptanoyl group, a neoheptanoyl group, an n-octanoyl group, an isooctanoyl group, an n-nonanoyl group, an isononanoyl group, an n-decanoyl group, an isodecanoyl group, an n-undecanoyl group, a group isoundecanoyl, an n-dodecanoyl group (lauroyl), an isododecanoyl group, an n-tridecanoyl group, an isotridodecanoyl group, an n- tetradecanoyl (myristoyl), an isotetradecanoyl group, an n-pentadecanoyl group, an isopentadecanoyl group, an n-hexadecanoyl (palmitoyl) group, an isohexadecanoyl group, an n-heptadecanoyl group, an isohexadecanoyl group, an n-octadecanoyl (stearoyl) group, an isooctadecanoyl group, an n-nonadecanoyl group, an isononadecanoyl group, an n-eicosanoyl group and an isoeicosanoyl group.

[0093] (i) Fatty alcohol can be represented by the following general formula (1):

[0094] R'-OH (1)

[0095] in which

[0096] R1 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms.

[0097] By way of examples of the branched alkyl group and the linear or branched alkenyl group, each having 4 to 30 carbon atoms, mention may be made of those listed above.

[0098] As (i) a fatty alcohol represented by formula (1), reference may be made, for example, to 2-ethylhexanol alcohol, palmitoleyl alcohol, isostearyl alcohol, elaidylic alcohol, oleyl alcohol, linoleyl alcohol, ricinoleyl alcohol, erucyl alcohol and a mixture of these.

[0099] It is preferable that (i) the fatty alcohol be chosen from the group consisting of isostearyl alcohol, oleyl alcohol and a mixture of the latter.

[0100] (ii) The fatty acid can be represented by the following general formula (2):

[0101] R'-COOH (2)

[0102] in which

[0103] R1 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms.

[0104] By way of examples of the branched alkyl group and the linear or branched alkenyl group, each having 4 to 30 carbon atoms, reference may be made to those listed above.

[0105] As (ii) a fatty acid represented by formula (2), reference may be made, for example, to isocaproic acid, isonanoic acid, crotonic acid, isolauric acid, myristoleic 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 a mixture of the latter.

[0106] It is preferable that (ii) the fatty acid be selected from the group consisting of isostearic acid, oleic acid and a mixture of the latter.

[0107] The (iii) monovalent monoester of carboxylic acid can be represented by the The following general formula (3):

[0108] R2-COO-R3 (3)

[0109] in which

[0110] R2 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms and

[0111] R3 represents a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms.

[0112] By way of examples of the branched alkyl group and the linear or branched alkenyl group, each having 4 to 30 carbon atoms, reference may be made to those listed above.

[0113] As examples of the branched alkyl group having 3 to 10 carbon atoms, mention may be made of those listed above.

[0114] By way of (iii) monovalent carboxylic acid monoester represented by formula (3), reference may be made, for example, to isopropyl palmitate, isopropyl myristate, isocetyl stearate, 2-ethylhexyl f'isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate and a mixture of these substances.

[0115] It is preferable that (iii) the monovalent carboxylic acid monoester be isopropylisostearate.

[0116] The (iv) divalent carboxylic acid diester can be represented by the following general formula (4):

[0117] R2-OC(=O)-R4-C(=O)O-R3 (4)

[0118] in which

[0119] R2 and R3 independently represent a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms, and

[0120] R4 represents a linear or branched alkylene group having 6 to 18, preferably 6 to 14 and, even better, 6 to 10 carbon atoms.

[0121] As examples of the branched alkyl group having 3 to 10 carbon atoms, mention may be made of those listed above.

[0122] Examples of linear or branched alkylene groups having 2 to 10 carbon atoms include, for example, an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group, a heptylene group, an octylene group, a nonylene group and a decanylene group.

[0123] It is preferable that (iv) the divalent carboxylic acid diester be selected from the group consisting of diisopropyl adipate, diisopropyl sebacate and a mixture of these.

[0124] (v) The n-acyl amino acid ester can be represented by the following general formula (5):

[0125] R2-N(R5)-CH(R6)-(CH2)n-COO-R3 (5)

[0126] in which

[0127] R2 represents a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, even better, 6 to 22 carbon atoms,

[0128] R3 represents a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms,

[0129] R5 represents a hydrogen atom, or a linear or branched alkyl group having 1 to 4 carbon atoms,

[0130] R6 represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms that can be substituted by a hydroxyl group or a phenyl group and

[0131] n represents an integer from 0 to 2.

[0132] By way of examples of the linear or branched acyl group having 4 to 30 carbon atoms, mention may be made of those listed above.

[0133] As examples of the branched alkyl group having 3 to 10 carbon atoms, mention may be made of those listed above.

[0134] Examples of a linear or branched alkyl group having 1 to 4 carbon atoms include 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.

[0135] By way of (v) n-acyl amino acid ester represented by formula (5), reference may be made, for example, to the following compounds: N-capryloyl sarcosine isopropyl ester, N-caprynoyl sarcosine isopropyl ester, N-lauroyl sarcosine isopropyl ester, N-cocoyl oil fatty acid acyl sarcosine isopropyl ester (N-cocoyl sarcosine isopropyl ester), N-myristoyl sarcosine isopropyl ester, N-palmitoyl sarcosine isopropyl ester, N-stearoyl sarcosine isopropyl ester, N-capryloyl sarcosine isobutyl ester, N-caprynoyl sarcosine isobutyl ester, N-caprynoyl sarcosine isobutyl ester, N-lauroyl sarcosine isobutyl ester, N-cocoyl sarcosine fatty acid acyl sarcosine isobutyl ester (N-cocoyl sarcosine isobutyl ester), N-myristoyl sarcosine isobutyl ester, N-palmitoyl sarcosine isobutyl ester, N-stearoyl sarcosine isobutyl ester, N-capryloyl glycine isopropyl ester,N-caprynoyl glysine isopropyl ester, N-lauroyl glycine isopropyl ester, N-cocoyl glycine fatty acid acyl glycine isopropyl ester (N-cocoyl glycine isopropyl ester), N-myristoyl glycine isopropyl ester, N-palmitoyl glycine isopropyl ester, N-stearoyl glycine isopropyl ester, N-capryloyl alanine isopropyl ester, N-caprinoyl alanine isopropyl ester, N-lauroyl alanine isopropyl ester, isopropyl ester, N-coco oil fatty acid acyl alanine (N-cocoyl alanine isopropyl ester), N-myristoyl alanine isopropyl ester, N-palmitoylalanine isopropyl ester, N-stearoylalanine isopropyl ester, N-lauroyl-[3-alanine] isopropyl ester, N-lauroyl-N-methyl-[3-alanine] isopropyl ester, N-cocoyl-N-methyl-[3-alanine] isopropyl ester, N-cocoyl-N-methyl-[3-alanine] fatty acid acyl-N-methyl-B-alanine (N-cocoyl-N-methyl-[3-alanine] isopropyl ester) and similar.

[0136] It is preferable that (v) the N-acyl amino acid ester be isopropyl lauroyl sarcosinate. A commercial product such as Ajinomoto's Eldew® SL-205 may be used as isopropyl lauroyl sarcosinate.

[0137] Alkyl lactate (vi) can be represented by the following general formula (6):

[0138] CH3-C(OH)-COO-R7 (6)

[0139] in which

[0140] R7 represents a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms.

[0141] By way of examples of the linear or branched alkyl group or the linear or branched alkenyl group, each having 4 to 30 carbon atoms, reference may be made to those listed above.

[0142] By way of examples (vi) of alkyl lactate represented by formula (6), one may mention, for example, caprylic lactate, caprylylic lactate, lauryl lactate, myristyle lactate, palmitylic lactate, stearylic lactate, isostearyl lactate, oleyl lactate and linoleyl lactate.

[0143] It is preferable that (vi) the alkyl lactate be selected from the group consisting of lauryl lactate, isostearyl lactate and a mixture of the latter.

[0144] The quantity (a) of the oil or oils in the composition according to the present invention may be 0.5% by weight or more, preferably 1% by weight or more, and even better 2% by weight or more, relative to the total weight of the composition.

[0145] Furthermore, the quantity (a) of the oil or oils in the composition according to the present invention may be 25% by weight or less, preferably 20% by weight or less and, even better, 15% by weight or less, relative to the total weight of the composition.

[0146] Consequently, the quantity of the oil or oils according to the present invention can be between 0.5% and 25% by weight, preferably between 1% and 20% by weight, and even better between 2% and 15% by weight, relative to the total weight of the composition.

[0147] The composition according to the present invention comprises at least one (b) diol having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6. Alternatively, (b) two or more diols may be used having at least one carbon chain comprising 3 or more carbon atoms, with a number total number of carbon atoms of 5 or 6.

[0148] The term "diol" here refers to a compound that has two alcoholic functions. In other words, a diol is an alcohol having two hydroxyl groups.

[0149] It may be even more preferable for the carbon chain to comprise 5 or 6 carbon atoms.

[0150] The carbon chain comprising 3 or more carbon atoms in ingredient (b) may be straight or branched. The carbon chain must not be interrupted by a heteroatom such as an oxygen atom, a sulfur atom, and a nitrogen atom. Thus, the carbon chain may comprise consecutive carbon atoms.

[0151] Preferably the number of carbon chains comprising 3 or more carbon atoms in ingredient (b) is 1 or 2.

[0152] The total number of carbon atoms in ingredient (b) is 5 or 6.

[0153] The diol(s) b) having at least one carbon chain comprising 3 carbon atoms or more, with a total number of carbon atoms of 5 or 6, may have a straight or branched divalent hydrocarbon group. The straight or branched divalent hydrocarbon group that may be present in ingredient (b) may be saturated or unsaturated. Preferably, the (b) diol(s) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6, should comprise a straight or branched saturated divalent hydrocarbon group and, even better, a straight or branched alkylene group, such as a propylene, pentylene, or hexylene group.

[0154] The (b) diol(s) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6 may have a linear, branched or cyclic molecular structure, provided that it has a carbon chain comprising 3 or more carbon atoms and that the number of carbon atoms is 5 or 6.

[0155] The diol(s) b) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6, may be a C5 6 diol comprising 2 hydroxy groups.

[0156] It is preferable that the diol(s) (b) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6, be selected from the group consisting of dipropylene glycol, pentylene glycol, hexylene glycol and a mixture of the latter.

[0157] It is preferable that the diol(s) (b) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6, be selected from the group consisting of pentylene glycol, hexylene glycol and a mixture thereof.

[0158] The quantity of (b) diol(s) having at least one carbon chain of 3 atoms of carbon or more, with a total number of carbon atoms of 5, in the composition according to the present invention may be 40% by weight or more, preferably 50% by weight or more, better, 60% by weight or more and, better still, 70% by weight or more, relative to the total weight of the composition.

[0159] The amount of (b) diol(s) having at least one carbon chain of 3 or more carbon atoms, with a total number of carbon atoms of 6, in the composition according to the present invention may be 60% by weight or more, preferably 70% by weight or more, relative to the total weight of the composition.

[0160] Furthermore, the quantity of (b) diols having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6, in the composition according to the present invention may be 85% by weight or less, preferably 80% by weight or less and, even better, 75% by weight or less, relative to the total weight of the composition.

[0161] [Diol / oil weight ratio]

[0162] The weight ratio of the quantity of (b) diol(s) having at least one carbon chain comprising 3 or more carbon atoms relative to the total number of carbon atoms of 5 or 6 to the quantity (a) of oil(s) may be 4 or more, preferably 5 or more, and better still 6 or more.

[0163] On the other hand, the weight ratio of the quantity of the (b) diol(s) having at least one carbon chain comprising 3 carbon atoms, with the total number of carbon atoms of 5 or 6 to the quantity (a) of oil(s) may be less than or equal to 20, preferably less than or equal to 15 and, even better, less than or equal to 10.

[0164] Thus, the weight ratio of the quantity of (b) diol(s) having at least one carbon chain comprising 3 or more carbon atoms with the total number of carbon atoms of 5 or 6 to the quantity (a) of oil(s) can be between 4 and 20, preferably between 5 and 15 and, even better, between 6 and 10.

[0165] [Water]

[0166] The composition according to the present invention comprises (c) water.

[0167] The quantity (c) of water in the composition according to the present invention may be 10% by weight or more, preferably 15% by weight or more and, better still, 20% by weight or more, relative to the total weight of the composition.

[0168] Furthermore, the quantity (c) of water in the composition according to the present invention may be 60% by weight or less, preferably 55% by weight or less and, better still, 50% by weight or less, relative to the total weight of the composition.

[0169] The quantity (c) of water in the composition according to the present invention can be from 10% to 60% by weight, preferably from 15% to 55% by weight, and even better from 20% to 50% by weight, relative to the total weight of the composition.

[0170] [Monovalent alcohol]

[0171] The composition according to the present invention may further comprise (d) at least one monovalent alcohol. Two or more of these alcohols may be used in combination. Thus, a single type of this alcohol or a combination of different types of this alcohol may be used.

[0172] (d) The monovalent alcohol is preferably in the form of a liquid at ambient temperature, for example 25 °C under atmospheric pressure (760 mmHg or 105 Pa).

[0173] The expression "monovalent alcohol" here refers to an alcohol having a hydroxy group.

[0174] Monovalent alcohol (d) can be non-aromatic (aliphatic) or aromatic.

[0175] The non-aromatic monovalent alcohol is preferably a lower, linear or branched, saturated or unsaturated, linear or branched aliphatic monovalent alcohol, better, a C2-C6> aliphatic monovalent alcohol and, even better, a C2-C5 linear or branched, saturated or unsaturated, linear or branched aliphatic monovalent alcohol and more preferably a C2-C4 linear or branched, saturated or unsaturated aliphatic monovalent alcohol. Preferred non-aromatic monovalent alcohols are ethanol, isopropanol and mixtures thereof.

[0176] The monovalent aromatic alcohol is preferably chosen from the group consisting of benzyl alcohol, phenethyl alcohol, diphenyl ethanol, cinnamyl alcohol, tryptophol, 3-nitrobenzyl alcohol, veratryl alcohol, benzoin and mixtures thereof.

[0177] It is preferable that (d) the monovalent alcohol is not a fatty alcohol or a superior alcohol.

[0178] It is preferable that (d) the monovalent alcohol is a monovalent aliphatic alcohol C2-4 II it is preferable that (d) the monovalent alcohol is ethanol.

[0179] The quantity (d) of monovalent alcohol(s) in the composition according to the present invention may be 1% by weight or more, preferably 5% by weight or more and, better still, 10% by weight or more, relative to the total weight of the composition.

[0180] Furthermore, the quantity of water (d) in the composition according to the present invention may be 60% by weight or less, preferably 55% by weight or less and, better still, 50% by weight or less, relative to the total weight of the composition.

[0181] The quantity of (a) oils in the composition according to the present invention may be between 1% and 60% by weight, preferably between 5% and 55% by weight and, even better, between 10% and 50% by weight, relative to the total weight of the composition.

[0182] The weight ratio of the quantity of (b) diol(s) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6 and the monovalent alcohol(s) relative to the quantity (a) of oil(s) may be 4 or more, preferably 5 or more, and preferably 6 or more.

[0183] The weight ratio of the total quantity of (b) diol(s) having at least one chain carbonaceous comprising 3 carbon atoms with a total number of carbon atoms of 5 or 6 and the monovalent alcohol(s) relative to the quantity (a) of oil(s) may be less than or equal to 20, preferably less than or equal to 15 and, better still, less than or equal to 10.

[0184] The weight ratio of the quantity of (b) diol(s) having at least one carbon chain comprising 3 or more carbon atoms with the total number of carbon atoms of 5 or 6 and the monovalent alcohol(s) relative to the quantity (a) of oil(s) may be between 4 and 20, preferably between 5 and 15 and, even better, between 6 and 10.

[0185] [Optional ingredients]

[0186] The composition according to the present invention may further include at least one optional ingredient commonly used in the field of cosmetics, chosen, for example, from film-forming polymers, solvents, colorants, pigments, UV filters, antioxidants, preservatives, pH adjusting agents and mixtures thereof.

[0187] The composition according to the present invention may comprise one or more cosmetically acceptable organic solvents, which may be diols other than ingredients (b) such as ethylene glycol; other polyols such as glycerol, sugar and carbohydrate alcohols; and ethers such as monomethyl, monoethyl and monobutyl ethers of ethylene glycol, monomethyl, monoethyl and monobutyl ethers of propylene glycol and monomethyl, monoethyl and monobutyl ethers of butylene glycol.

[0188] The quantity of the organic solvent(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.1% by weight or more, and even better 1% by weight or more, relative to the total weight of the composition.

[0189] Furthermore, the quantity of organic solvent(s) in the composition according to the present invention may be 30% by weight or less, preferably 20% by weight or less and, even better, 10% by weight or less, relative to the total weight of the composition.

[0190] The quantity of the organic solvent(s) in the composition according to the present invention may be between 0.01% and 30% by weight, preferably between 0.1% and 20% by weight, and even better between 1% and 10% by weight, relative to the total weight of the composition.

[0191] (Preparation)

[0192] The composition according to the present invention can be prepared by mixing the essential ingredient(s) as explained above, and the optional ingredient(s), if necessary, as explained above.

[0193] The process and means for mixing the essential and optional ingredients listed below. The above are not limited. Any conventional method and means may be used to mix the essential and optional ingredients above in order to prepare the composition according to the present invention.

[0194] [Form]

[0195] The form of the composition according to the present invention is not limited.

[0196] The composition according to the present invention can be thermodynamically stable and can be considered as a single-phase composition.

[0197] The composition according to the present invention may be transparent.

[0198] Transparency can be measured by measuring turbidity (for example, turbidity can be measured with a 2100Q incandescent lamp (marketed by Hach Company) equipped with a round cell (25 mm in diameter and 60 mm in height) and a tungsten filament lamp capable of emitting visible light (between 400 and 800 nm, preferably from 400 to 500 nm). The measurement can be carried out on the undiluted composition. The blank test can be titrated with distilled water.

[0199] The composition according to the present invention has a turbidity of 120 NTU or less, preferably 90 NTU or less and better still 60 NTU or less.

[0200] [Process and use]

[0201] It is preferable that the composition according to the present invention be a cosmetic or dermatological composition, preferably a cosmetic composition for the skin and, even better, a cosmetic skin care composition.

[0202] The composition according to the present invention can be used for a non-therapeutic process, such as a cosmetic process, to treat skin, by being applied to the skin.

[0203] Thus, the present invention also relates to a cosmetic process for treating a keratinous substance such as skin, comprising the step of applying the composition according to the present invention to the keratinous substance.

[0204] The present invention may also relate to a use of the composition according to the present invention as a cosmetic product or in a cosmetic product such as skin care products.

[0205] In other words, the composition according to the present invention can be used, as is, as a cosmetic product. 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 or combined with any other element to form a cosmetic product.

[0206] The skin care product can be a lotion, a cream, a serum, etc.

[0207] Another aspect of the present invention also relates to a method of pre Preparation of a composition, including a mixing step:

[0208] (a) at least one oil;

[0209] (b) at least one diol having at least one carbon chain comprising 3 atoms of carbon or more with a total number of carbon atoms of 5 or 6 and

[0210] (c) water;

[0211] in which

[0212] (a) the oil may be selected from the group consisting of: (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, provided that

[0213] - (i) fatty alcohols and (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0214] - (iii) monovalent carboxylic acid monoesters comprise a group branched alkyl or linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0215] - (iv) divalent carboxylic acid diesters comprise at least one group a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and an alkylene group having 6 to 18, preferably 6 to 14 and, better still, 6 to 10 carbon atoms,

[0216] - (v) n-acyl amino acid esters comprise a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and

[0217] - (vi) alkyl lactates comprise a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0218] and

[0219] the weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil may be 4 or more, preferably 5 or more, and better still, 6 or more.

[0220] It is preferable that the mixing step be carried out by a so-called low-energy process without a special mechanical agitator, such as a homogenizer which uses a large amount of energy. The low-energy process can be carried out by simply stirring the ingredients (a) to (c) gently.

[0221] Another aspect of the present invention relates to the use of the following elements:

[0222] (a) at least one oil and

[0223] (b) at least one diol having at least one carbon chain comprising 3 atoms of carbon or more with a total number of carbon atoms of 5 or 6;

[0224] in a composition comprising:

[0225] (c) water;

[0226] in which

[0227] (a) the oil may be selected from the group consisting of: (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, provided that

[0228] - (i) fatty alcohols and (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms and

[0229] - (iii) monovalent carboxylic acid monoesters comprise a group branched alkyl or linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0230] - (iv) the divalent carboxylic acid diesters comprise at least one group a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and an alkylene group having 6 to 18, preferably 6 to 14 and, better still, 6 to 10 carbon atoms,

[0231] - (v) n-acyl amino acid esters comprise a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and

[0232] - (vi) alkyl lactates comprise a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0233] and

[0234] the weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil may be 4 or more, preferably 5 or more, and better still, 6 or more.

[0235] in order to make the composition stable and transparent or slightly translucent.

[0236] The above explanations concerning ingredients (a) to (c), as well as optional ingredients, for the composition according to the present invention can be applied to the uses and processes according to the present invention. The explanations concerning the preparation and forms of the composition according to the present invention can also be applied to the compositions listed in the uses and processes above. EXAMPLES

[0237] The present invention will be described in more detail with the aid of examples which shall not however, they shall not be interpreted as limiting the scope of the present invention.

[0238] [Examples of invention 1 to 32 and Comparative examples 1 to 46]

[0239] The following compositions according to Examples 1-32 and Comparative Examples 1-46 shown in Tables 1-9 were prepared by mixing the ingredients listed in Tables 1-9 as follows. The numerical values ​​of the quantities of ingredients shown in Tables 1-9 are all based on "% by weight" of active raw materials.

[0240] The weight ratio of the quantity (weight) of the diol(s) having at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6, relative to the quantity (weight) of the oil or oils in each composition (diol(s) / oil(s)) is indicated in the line of the "Diol / oil ratio" in Tables 1-4 and 6-9.

[0241] The weight ratio of the total quantity (weight) of the diol(s) having at least one carbon chain comprising 3 or more carbon atoms, with the total number of carbon atoms of 5 or 6 and the monovalent alcohol(s) to the quantity (weight) of oil ingredient(s) in each composition ((Diol(s)+Alcohol(s) / Oil(s)) is indicated in the line of the “Ratio between Diol+Alcohol and Oil” of Table 5.

[0242] [Tables 1] Ingredients Ex. comp. 1 Ex. comp. 2 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. comp. 3 Ex. comp. 4 Ex. 5 Ex. 6 Pentylene glycol (C5) 20 30 40 50 60 70 - - - - Hexylene glycol (C6) - - - - - - 20 30 60 70 Diisopropyl adipate 10 10 10 10 10 10 10 10 10 10 Water qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 Diol / oil ratio 2 3 4 5 6 7 2 3 6 7 Appearance Poor Poor Good Good Good Good Good Poor Poor Good Good Turbidity 1000 1000 23 44 15 1.2 1000 1000 13 19 Stability Bad Bad Good Good Good Good Good Bad Bad Good Good Ingredients Ex. comp. 5 Ex. comp. 6 Ex. comp. 7 Ex. comp. 8 Ex. comp. 9 Ex. comp. 10 Ethylene glycol (C2) 20 30 40 50 60 70 Diisopropyl adipate 10 10 10 10 10 10 Water q.s. ... Ingredients Ex. comp. 11 Ex. comp. 12 Ex. comp. 13 Ex. comp. 14 Ex. comp. 15 Ex. comp. 16 Ex. comp. 17 Ex. comp. 18 Ex. comp. 19 Comp. Ex. 20 Comp. Ex. 21 Comp. Ex. 22 Butylene glycol (C4) 20 30 40 50 60 70 - - - - - - Capryl yi glycol (C8) - - - - - - 20 30 40 50 60 70 Diisopropyl adipate 10 10 10 10 10 10 10 10 10 10 10 10 Water qsp qsp qsp qsp qsp qsp qsp qsp qsp qsp qsp qsp 100 100 100 100 100 100 100 100 100 100 100 100 Diol / oil ratio 2 3 4 5 6 7 2 3 4 5 6 7 Appearance Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau I'm going to go ... Ingredients Ex. comp. 23 Ex. comp. 24 Ex. 7 Ex. 8 Ex. 9 Pentylene glycol (C5) 10 15 25 30 35 Hexylene glycol (C6) 10 15 25 30 35 Diisopropyl adipate 10 10 10 10 10 Water q.s. ...

[0246] [Tables5] Ingredients Ex. comp. 25 Ex. comp. 26 Ex. 10 Ex. 11 Ex. 12 Pentylene glycol (C5) 10 15 25 30 35 Ethanol 10 15 25 30 35 Diisopropyl adipate 10 10 10 10 10 Water q.s. ... Ingredients Ex 13 Ex 14 Ex 15 Ex 16 Ex. com P-27 Ex. com P-28 Ex. com P-29 Ex. com P-30 Ex. com P-31 Ex. com P-32 Ex. com P-33 Ex. com P-34 Ex. com P-35 Ex. com P-36 Pentylene glycol 60 60 - - 60 60 60 60 60 - - - - - Hexylene glycol - - 60 60 - - - - - 60 60 60 60 60 Isostearyl alcohol (Cl 8, branched) 10 10 Oleyl alcohol (Cl 8, unsaturated) 10 10 Myristyl alcohol - - - - 10 - - - - 10 - - - - Alcohol Cetyl alcohol - - - - - 10 - - - - 10 - - - Stearyl alcohol - - - - - - 10 - - - - 10 - - Arachidil alcohol - - - - - - - 10 - - - - 10 - Behenyl alcohol - - - - - - - - 10 - - - - 10 Water qs qs qs qs qsp qsp qsp qsp qsp qsp qsp qsp qsp PPPP 100 100 100 100 100 100 100 100 100 100 10 10 10 10 0 0 0 0 Diol / oil ratio 6 6 6 6 6 6 6 6 6 6 6 6 6 6 Appearance Bo Bo Bo Bo Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau nnnn vais vais vais vais vais vais vais vais vais vais Turbidi 13 18 29 48 1000 1000 1000 1000 1000 1000 1000 1000 1000 Stabilit Bo Bo Bo Bo Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau Mau é nnnn I'm going to go ... Ingredients Ex 17 Ex 18 Ex 19 Ex 20 Ex. com P-37 Ex. com P-38 Ex. com P-39 Ex. com P-40 Ex. com P-41 Ex. com P-42 Ex. com P-43 Ex. com P-44 Ex. com P-45 Ex. com P-46 Pentylene glycol 60 60 - - 60 60 60 60 60 - - - - - Hexylene glycol - - 60 60 - - - - - 60 60 60 60 60 Isostearic acid (Cl 8, branched) 10 10 Oleic acid (Cl 8, unsaturated) 10 10 Myristic acid - - - - 10 - - - - 10 - - - - Palmitic acid - - - - - 10 - - - - 10 - - - Stearic acid - - - - - - 10 - - - - 10 - - Arachidic acid - - - - - - - 10 - - - - 10 - Behenic acid - - - - - - - - 10 - - - - 10 Water qs P 10 0 qs P 10 0 qs P 10 0 qs P 10 0 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 Diol / oil ratio 6 6 6 6 6 6 6 6 6 6 6 6 6 6 Appearance Good Good Good Good Bad Bad Bad Bad Bad Bad Bad Bad Bad Bad Bad Bad Turbidity 23 39 18 36 1000 1000 1000 1000 1000 1000 1000 1000 1000 Stability Good Good Good Good Good Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Bad go Ingredients Ex. 21 Ex. 22 Ex. 23 Ex. 24 Ex. 25 Ex. 26 Ex. 27 Ex. 28 Pentylene glycol 60 - 60 - 60 - 60 - Hexylene glycol - 60 - 60 - 60 - 60 Isopropyl isostearate (Cl8, branched, monoester) - - - - - - 10 10 Diisopropyl adipate (C6, diester) 10 10 - - - - - - Diisopropyl sebacate (ClO, diester) - - 10 10 - - - - Isopropyl lauroyl sarcosinate (C12) - - - - 10 10 - - Water q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 q.s. 100 qsp 100 Oil / diol ratio 6 6 6 6 6 6 6 6 Appearance Good Good Good Good Good Good Good Good Turbidity 29 23 15 12 36 23 8.9 2.5 Stability Good Good Good Good Good Good Good Good Ingredients Ex. 29 Ex. 30 Ex. 31 Ex. 32 Pentylene glycol 60 - 60 - Hexylene glycol - 60 - 60 Lauryl lactate (Cl2, lactate) 10 10 - - Isostearyl lactate (Cl8, branched, lactate) - - 10 10 Water qs 100 qs 100 qs 100 qs 100 Diol / oil ratio 6 6 6 6 Appearance Good Good Good Good Turbidity 14 12 11 15 Stability Good Good Good Good

[0251] [Evaluations]

[0252] (Aspect)

[0253] The appearance of each of the compositions according to examples 1-32 and comparative examples 1-46 was evaluated by visual observation of the appearance of the composition which was kept at 55 °C for 2 weeks and at 4 °C for 2 weeks, on the basis of the following criteria.

[0254] Good Uniform

[0255] Bad: Non-uniform (phase separation recognized)

[0256] The results are illustrated in Table 1-9.

[0257] (Turbidity)

[0258] The turbidity of each of the compositions according to Examples 1-32 and Comparative Examples 1-46, which was maintained at 55 °C for 2 weeks and at 4 °C for 2 weeks, was evaluated by a 2100Q (Hach Company) at room temperature (20-25 °C).

[0259] The results are illustrated in Table 1-9.

[0260] (Stability)

[0261] The stability of each of the compositions according to examples 1-32 and comparative examples 1-46 was evaluated by visual observation of the appearance of the composition which was kept at 55 °C for 2 weeks and at 4 °C for 2 weeks, on the basis of the following criteria.

[0262] Good Transparent

[0263] Bad: Not transparent

[0264] The results of the stability assessment are presented in Tables 1-9.

[0265] [Summary]

[0266] Table 1 shows that

[0267] the weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil shall be 4 or more, preferably 5 or more, and better still, 6 or more.

[0268] Tables 2 and 3 show that the (b) diol must have at least one carbon chain comprising 3 or more carbon atoms, with a total number of carbon atoms of 5 or 6.

[0269] Table 4 shows that a mixture of (b) diols can provide the desired effects of the present invention, if the weight ratio of the quantity of (b) diols to the quantity of (a) oil is 4 or more.

[0270] Table 5 demonstrates that the composition comprising monovalent alcohol (d) can provide the desired effects of the present invention if the weight ratio of the total quantity of diol(s) (b) and monovalent alcohol (d) to the quantity of oil (a) is 4 or more.

[0271] Table 6 shows that (i) fatty alcohols with a branched alkyl group, or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms should be used.

[0272] Table 7 shows that (ii) fatty acids with a branched alkyl group, or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms should be used.

[0273] Table 8 shows that (iii) monovalent carboxylic acid monoesters with a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26, and better still 6 to 22 carbon atoms, (iv) divalent carboxylic acid diesters with at least one branched alkyl group having 3 to 10, preferably 3 to 8, and better still 3 to 6 carbon atoms, and (v) N-acyl amino acid esters, with a branched alkyl group having 3 to 10, preferably 3 to 8, and better still 3 to 6 carbon atoms and a linear or branched acyl group having 4 to 30, preferably 5 to 26, and better still 6 to 22 carbon atoms should be used.

[0274] Table 9 shows that (iv) alkyl lactates with a linear or branched alkyl group, or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms should be used.

[0275] Thus, Tables 1-9 demonstrate that the use of

[0276] (a) at least one oil and

[0277] (b) at least one diol having at least one carbon chain comprising 3 atoms of carbon or more with a total number of carbon atoms of 5 or 6;

[0278] in a composition comprising:

[0279] (c) water;

[0280] in which

[0281] (a) the oil may be selected from the group consisting of: (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, provided that

[0282] - (i) fatty alcohols and (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0283] - (iii) monovalent carboxylic acid monoesters comprise a group branched alkyl or linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0284] - (iv) divalent carboxylic acid diesters comprise at least one group a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and an alkylene group having 6 to 18, preferably 6 to 14 and, better still, 6 to 10 carbon atoms,

[0285] - (v) n-acyl amino acid esters comprise a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and

[0286] - (vi) alkyl lactates comprise a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms,

[0287] and

[0288] the weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil is 4 or more, preferably 5 or more and, even better, 6 or more

[0289] can make the composition stable and transparent.

Claims

Demands

1. Composition comprising: (a) at least one oil; (b) at least 40% by weight relative to the total weight of the composition of a diol having at least one carbon chain comprising 3 or more carbon atoms with a total number of carbon atoms of 5 or 6, selected from the group consisting of pentylene glycol, hexylene glycol and a mixture thereof, and (c) water; in which (a) The oil is selected from the group consisting of: (i) fatty alcohols selected from isostearyl alcohol, oleyl alcohol and a mixture thereof, (ii) fatty acids, (iii) monovalent carboxylic acid monoesters, (iv) divalent carboxylic acid diesters, (v) N-acyl amino acid esters and (vi) alkyl lactates, provided that (ii) fatty acids comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, (iii) Monovalent monoesters of carboxylic acid comprise a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, (iv) Divalent carboxylic acid diesters comprise at least one branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms, and one alkylene group having 6 to 18, preferably 6 to 14 and, even better, 6 to 10 carbon atoms; (v) n-acyl amino acid esters comprise one branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms, and one linear or branched acyl group having 4 to 30, preferably 5 to 26 and, even better, 6 to 22 carbon atoms; and (vi) alkyl lactates comprise one linear or branched alkyl group, each having 4 to 30, preferably 5 to 26 and, even better, 6 with 22 carbon atoms, and the weight ratio of the quantity of (b) diol having at least one carbon chain comprising 3 carbon atoms with the total number of carbon atoms of 5 or 6, relative to the quantity (a) of oil is 4 or more, preferably 5 or more, and better still 6 or more.

2. Composition according to Claim 1, wherein (ii) the fatty acid is represented by the following general formula (2): R'-COOH (2) in which R1 represents a branched alkyl group, or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and is preferably selected from the group consisting of isostearic acid, oleic acid and a mixture thereof.

3. Composition according to any one of Claims 1 to 2, wherein the (iii) monovalent monoester of carboxylic acid is represented by the following general formula (3): R2-COO-R3 (3) wherein R2 represents a branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms and R3 represents a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, and is preferably isopropyl isostearate.

4. Composition according to any one of Claims 1 to 3, wherein the (iv) divalent carboxylic acid diester is represented by the following general formula (4): R2-OC(=O)-R4-C(=O)O-R3 (4) wherein R2 and R3 independently represent a branched alkyl group having 3 to 10, preferably 3 to 8 and, even better, 3 to 6 carbon atoms, and R4 represents a linear or branched alkylene group having 6 to 18, preferably 6 to 14 and, even better, 6 to 10 carbon atoms, and is preferably selected from the group consisting of dü-sopropyl adipate, diisopropyl sebacate and a mixture thereof.

5. Composition according to any one of Claims 1 to 4, wherein (v) the N-acyl amine ester is represented by the formula the following general (5): R2-N(R5)-CH(R6)-(CH2)n-COO-R3 (5) wherein R2 represents a linear or branched acyl group having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, R3 represents a branched alkyl group having 3 to 10, preferably 3 to 8 and, better still, 3 to 6 carbon atoms, R5 represents a hydrogen atom, or a linear or branched alkyl group having 1 to 4 carbon atoms, R6 represents a hydrogen atom or a linear 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, and is preferably isopropyl lauroyl sarcosinate.

6. Composition according to any one of Claims 1 to 5, wherein (vi) alkyl lactate is represented by the following general formula (6): CH3-C(OH)-COO-R7(6) in which R7 represents a linear or branched alkyl group or a linear or branched alkenyl group, each having 4 to 30, preferably 5 to 26 and, better still, 6 to 22 carbon atoms, and is preferably selected from the group consisting of lauryl lactate, isostearyl lactate and a mixture thereof.

7. Composition according to any one of Claims 1 to 6, wherein the composition has a turbidity of 120 NTU or less, preferably 90 NTU or less and better still 60 NTU or less.

8. Composition according to any one of Claims 1 to 7, wherein the composition is a cosmetic composition, preferably a cosmetic composition for the skin and, even better, a cosmetic composition for the skin care.

9. Cosmetic process for treating a keratinous substance, preferably the skin, comprising the step of applying the composition according to any one of Claims 1 to 8 to the keratinous substance.