CLEANSING AND / OR MAKE-UP REMOVAL COMPOSITION FOR KERATINOUS MATERIALS

Abstract

COMPOSITION AND METHOD FOR CLEANING KERATINOUS MATERIALS The present invention relates to a composition comprising: a) at least one cellulose-based polymer; b) at least one amphoteric surfactant; and c) at least one monosaccharide selected from mannose, rhamnose, and mixtures thereof. The present invention also relates to a method for cleaning and / or removing makeup from keratinous materials, comprising applying the composition according to the present invention to the keratinous materials and rinsing off said composition after an optional period of time. Figure for the abstract: none

Description

Title of the invention: CLEANSING AND / OR MAKE-UP REMOVAL COMPOSITION FOR KERATINOUS MATERIALS technical field

[0001] The present invention relates to a cosmetic composition, in particular a composition for cleansing keratinous materials. The present invention also relates to a method for cleansing and / or removing makeup from keratinous materials using said composition. STATE OF THE ART

[0002] Skin cleansing is very important for skin care. It must be as effective as possible because oily residues, such as excess sebum, remnants of cosmetic products used daily and makeup products, especially water-resistant products, accumulate in skin folds, can clog pores and lead to the appearance of pimples.

[0003] Several types of skin cleansing or makeup-removing products, for example, rinse-off anhydrous oils and gels, are known.

[0004] Rinse-off anhydrous oils and gels have a cleansing or makeup-removing action due to the oils present in these formulations. These oils dissolve oily residues and disperse makeup pigments. These products are effective and well-tolerated.

[0005] Foaming creams, lotions, and gels have a cleansing or makeup-removing action thanks to surfactants, which suspend oily residues on the face. They are effective and pleasant to use because they foam and are easy to rinse off. To achieve a better foam density in a foaming cleanser, the traditional foaming cleanser may include more polymers or higher quantities of surfactants.

[0006] It is important that cleansers have a slippery feel to avoid rubbing the skin.

[0007] Therefore, there is a need to formulate frictionless compositions for cleansing and / or removing makeup from keratinous materials, which can offer a good foam density. Summary of the invention

[0008] The inventors have discovered that such a need mentioned above can be satisfied by the present invention.

[0009] Thus, according to a first aspect, the present invention proposes a composition comprising: a. at least one cellulose-based polymer; b. at least one amphoteric surfactant; and c. at least one monosaccharide selected from mannose, rhamnose, and one of their mixtures.

[0010] The inventors have discovered that with the combination of at least one cellulose-based polymer, at least one amphoteric surfactant and at least one monosaccharide selected from mannose, rhamnose and mixtures thereof, the composition according to the present invention can lead to a good slippery feel and good foam density.

[0011] The composition according to the present invention can be used as a daily facial cleanser or makeup remover. Thus, such a composition can be applied to the skin (namely: face and / or body), then rinsed off with running water.

[0012] According to a second aspect, the present invention proposes a method for cleaning and / or removing makeup from keratinous materials, comprising applying the composition according to the present invention to the keratinous materials and rinsing off said composition after an optional period of time.

[0013] The inventors also discovered that at least one monosaccharide selected from mannose, rhamnose, and one of their mixtures can significantly improve the slipperiness of a composition comprising at least one cellulose-based polymer and at least one amphoteric surfactant.

[0014] According to a third aspect, the present invention proposes the use of a monosaccharide selected from mannose, rhamnose, and one of their mixtures to improve the slipperiness of a composition comprising at least one cellulose-based polymer and at least one amphoteric surfactant.

[0015] Other subjects, features, aspects, and advantages of the present invention will be presented in the following description and will be partly evident from the description or may be learned through practice of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as that commonly understood by a person skilled in the art of the present invention. Where the definition of a term in the present invention conflicts with the meaning commonly understood by a person skilled in the art of the present invention, the definition described in this document shall apply.

[0017] In what follows, and unless otherwise indicated, the limits of a range of values ​​are included in that range, in particular in the expressions "between... and..." and "from... to...".

[0018] Furthermore, the expression "at least one" used in this description is equivalent to the expression "one or more".

[0019] Throughout this application, the term "including" shall be interpreted as encompassing all the specifically mentioned features as well as optional, additional, unspecified features. As used herein, the use of the term "including" also discloses the embodiment in which no features other than the specifically mentioned features are present (i.e., "consisting of").

[0020] Unless otherwise stated, all numerical values ​​expressing a quantity of ingredients and the like used in the description and claims shall be understood as modified by the term "approximately". Consequently, unless otherwise stated, the numerical values ​​and parameters described in this document are approximate values ​​that may be modified, where appropriate, depending on the intended purpose.

[0021] For the purposes of the present invention, the term "keratinous materials" is intended to cover human skin and mucous membranes such as the lips. Facial skin is considered in particular according to the present invention.

[0022] In the present invention, all percentages refer, unless otherwise specified, to a percentage by weight.

[0023] According to the first aspect, the composition of the present invention comprises: a. at least one cellulose-based polymer; b. at least one amphoteric surfactant; and c. at least one monosaccharide selected from mannose, rhamnose, and one of their mixtures. Cellulose-based polymers

[0024] According to the first aspect, the composition of the present invention comprises at least one cellulose-based polymer.

[0025] As used herein, the term "cellulose" refers to any polysaccharide compound having in its structure sequences of glucose residues linked together via [3-1,4] linkages, and in addition to unsubstituted celluloses, one of its derivatives may be used. For example, cellulose ethers, cellulose esters, and cellulose ester ethers may be used.

[0026] Preferably, the cellulose-based polymer is chosen from non-ionic celluloses.

[0027] More preferably, the cellulose-based polymer is chosen from celluloses with at least one OH group substituted by a group chosen from C1-C4 alkyls, C1-C4 hydroxy alkyls, C1-C4 carboxy alkyls, and their combinations.

[0028] More preferably, the cellulose-based polymer is chosen from methylcellulose, hydroxymethyl methylcellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose, carboxymethyl methylcellulose, carboxyethyl methylcellulose, carboxypropyl methylcellulose, mixtures thereof.

[0029] Most preferably, the composition of the present invention comprises hydroxypropyl methylcellulose.

[0030] Preferably, the cellulose-based polymer has a mass average molecular weight between 1000 and 10,000,000 g / mol, preferably between 20,000 and 5,000,000 g / mol and even more preferably between 50,000 and 3,000,000 g / mol.

[0031] As commercial cellulose-based polymer products suitable for the composition according to the present invention, hydroxypropyl methylcellulose sold under the name METHOCEL TM E 4 M PREMIUM by the DOW company and under the name BENECEL K100M HYDROXYPROPYLMETHYL CELLULOSE by the ASHLAND company may be cited.

[0032] Advantageously, the cellulose-based polymer is present in an amount ranging from 0.001% by weight to 5% by weight, preferably from 0.005% by weight to 3% by weight, more preferably from 0.01% by weight to 2% by weight, even more preferably from 0.02% by weight to 1% by weight, relative to the total weight of the composition. Amphoteric surfactants

[0033] According to the first aspect, the composition according to the present invention comprises at least one amphoteric surfactant.

[0034] Preferably, the amphoteric surfactant is chosen from among the betaine surfactants.

[0035] Examples of useful betaine surfactants include, but are not limited to, those the following formulas (la-Id):

[0036] (the) Clh—Œh—OM R f 0—ç —. c ___ CH^COO' OH H

[0037] (Ib) œ3 g --SÜj" 2¾

[0038] (the) (¾ Rje—C—N—(CHjk / —Nf—ŒlaCOO* O II CH

[0039] (Id)

[0040] in which:

[0041] - Rio is an alkyl group having 8 to 20 carbon atony; and

[0042] - n is an integer from 1 to 6.

[0043] More preferably, the amphoteric surfactant is chosen from (C8-C20)alkylbetaines, (C8-C20)alkylsulfobetaines, (C8-C20)alkylamido(Cl-C6)alkylbetaines, and their combinations.

[0044] Most preferably, the amphoteric surfactant is chosen from among the (C8-C20)alkylbetaines, the (C8-C20)alkylamido(Cl-C6)alkylbetaines, for example, coco-betaine, cocamidopropyl betaine, lauryl betaine, lauryldimethyl betaine, capryl / capramidopropyl betaine, stearyl betaine, and mixtures thereof.

[0045] In some preferred embodiments, the composition according to the present invention comprises at least one (C8-C20)alkylbetaine, in particular coco-betaine.

[0046] Advantageously, the amphoteric surfactant is present in the composition according to the present invention in an amount ranging from 0.1% by weight to 30% by weight, preferably from 0.3% by weight to 20% by weight, more preferably from 0.5% by weight to 10% by weight, even more preferably from 1% by weight to 5% by weight, relative to the total weight of the composition. Monosaccharides

[0047] According to the first aspect, the composition according to the present invention comprises at least one monosaccharide selected from mannose, rhamnose and one of their mixtures.

[0048] As used herein, the term “monosaccharides” means a monosaccharide sugar comprising at least 3 carbon atoms, preferably at least 5 carbon atoms, of formula Cx(H2O)xX, where X is an integer greater than or equal to 3, of preferably greater than or equal to 5; preferably, x is greater than or equal to 6; in particular, x is between 5 and 7; preferably x = 6; they may be of D or L configuration, and of a or [3 anomericity, as well as their salts and solvates, such as hydrates.

[0049] Mannose is a monosaccharide (a non-hydrolyzable simple sugar) consisting of 6 carbon atoms; it is a hexose. Its empirical formula is C6Hi2O6, identical to that of glucose, of which it is the C2 epimer (i.e., its spatial configuration is strictly the same as that of glucose, except for the substituent on the two carbons, where it is inverted compared to glucose). Mannose corresponds to the following formula (I), which also includes its enantiomers:

[0050] Mannose can be supplied in solvated form (including hydrates) and as a mixture of D and L stereoisomers called DL-mannose.

[0051] Rhamnose (or 6-deoxymannose) is formally the product of the deoxygenation of mannose at C6. Rhamnose is found in nature in the L form.

[0052] Rhamnose can also be supplied in solvated form (including hydrates).

[0053] More preferably, the composition of the present invention comprises rhamnose.

[0054] Even more preferably, the composition of the present invention comprises rhamnose in the L form of monohydrate.

[0055] Most preferably, the monosaccharide is rhamnose optionally in the L form of monohydrate.

[0056] Advantageously, the monosaccharide is present in the composition according to the present invention in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.02% by weight to 8% by weight, more preferably from 0.05% by weight to 5% by weight, even more preferably from 0.1% by weight to 3% by weight, relative to the total weight of the composition. Aqueous phase

[0057] The composition of the present invention may include at least one aqueous phase.

[0058] Preferably, the aqueous phase comprises water.

[0059] Advantageously, water is present in the composition of the present invention in an amount ranging from 50% by weight to 99% by weight, preferably from 70% by weight to 98% by weight, more preferably from 80% by weight to 97% by weight, relative to the total weight of the composition.

[0060] Optionally, the aqueous phase comprises a water-miscible organic solvent (at room temperature at 25 °C) selected from monoalcohols, glycols and polyols having 2 to 20 carbon atoms, such as octyldodecanol, glycerin, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, diethylene glycol; and mixtures thereof.

[0061] Advantageously, the aqueous phase is present in the composition of the present invention in an amount ranging from 60% by weight to 99% by weight, preferably from 70% by weight to 98% by weight, more preferably from 80% by weight to 97% by weight, relative to the total weight of the composition. Additional ingredients

[0062] The composition according to the present invention may include one or more additional ingredients chosen from among the additives traditionally used in cleansers for keratinous materials and cosmetic active ingredients.

[0063] Examples of additives traditionally used in cleaners for keratinous materials include: pH correcting agents (e.g., citric acid); antibacterial agents; perfumes; colorants, and the like.

[0064] Examples of cosmetic active ingredients include: humectants, exfoliating agents, whitening active ingredients, antioxidants, and the like.

[0065] A person skilled in the art can adjust the type and quantity of additional ingredients present in the compositions according to the present invention by means of routine operations, so that the desired properties of these compositions are not negatively affected by the additional ingredients.

[0066] According to a preferred embodiment, the present invention relates to a composition comprising, relative to the total weight of the composition: a. from 0.02% by weight to 1% by weight of at least one cellulose-based polymer selected from methylcellulose, hydroxymethyl methylcellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose, carboxymethyl methylcellulose, carboxyethyl methylcellulose, carboxypropyl methylcellulose, mixtures thereof; b. 1% to 5% by weight of at least one amphoteric surfactant selected from the (C8-C20)alkylbetaines; and c. 0.1% by weight to 3% by weight of rhamnose, optionally in the L form of monohydrate. Method and use

[0067] The composition according to the present invention can be used in a process of cleaning and / or removing makeup from keratinous materials, such as skin, in particular the face, by being applied to the keratinous materials.

[0068] The composition according to the present invention may be in the form of a lotion, a cream, a liquid or a gel.

[0069] The composition according to the invention can be applied by any means allowing uniform distribution, in particular with a finger, or a cotton ball, and can be removed by rinsing with water.

[0070] Thus, according to the second aspect, the present invention relates to a method for cleaning and / or removing makeup from keratinous materials, comprising applying the composition according to the present invention to the keratinous materials and rinsing off said composition after an optional period of time.

[0071] According to the third aspect, the present invention proposes the use of a monosaccharide selected from mannose, rhamnose and one of their mixtures to improve the slipperiness of a composition comprising at least one cellulose-based polymer and at least one amphoteric surfactant.

[0072] The monosaccharide, the cellulose-based polymer and the amphoteric surfactant are as defined above. EXAMPLES

[0073] The following examples are given by way of illustration of the present invention and shall not be construed as limiting the scope.

[0074] The main raw materials used, their trade names and their suppliers have been listed in Table 1.

[0075] [Tables 1] INCI Name Trade Name Supplier Coco-betaine (Coco-betaine) AMPHITOL 24B-2 KAO Hydroxypropylmethylcellulose (Hydroxypropyl methylcellulose) BENECEL K100M HYDROXYPROPYLMETHYL CELLULOSE ASHLAND Rhamnose L-RHAMNOSE MONOHYDRATE QINGDAO TAITONG PHARMACEUTICAL Inventive Example 1 and Comparative Examples 1 to 3

[0076] The compositions according to Inventive Example (El) 1 and Comparative Examples (EC) 1 to 3 comprising the components indicated in Table 2 have been prepared, all quantities being expressed as percentages by weight of each component relative to the total weight of each composition, unless otherwise indicated.

[0077] [Tables2] Components El. 1 EC. 1 EC.2 EC.3 Coco-betaine 3 3 3 3 Hydroxypropylmethylcellulose 0.1 0.1 0 0 Rhamnose 1 0 1 0 Water QS100 QS100 QS100 QS100

[0078] The composition of Inventive Example 1 represents the composition of the present invention.

[0079] The composition of Comparative Example 1 does not include at least one monosaccharide selected from mannose, rhamnose, and one of their mixtures.

[0080] The composition of Comparative Example 2 does not include at least one cellulose-based polymer.

[0081] The composition of Comparative Example 3 does not include at least one cellulose-based polymer and at least one monosaccharide selected from mannose, rhamnose, and a mixture thereof. Preparation process

[0082] The compositions listed above were prepared as follows: 1. Add hydroxypropyl methylcellulose (if present) to water in a main beaker with stirring; 2. Slowly add coco-betaine to the main beaker while stirring; and 3. Addition of rhamnose (if present) to the main beaker. Composition evaluation

[0083] The compositions prepared above were evaluated in terms of slipperiness during massage and in terms of foam density as follows.

[0084] Slippery texture during massage and foam density

[0085] 8 experts were invited to place 0.5 g of the test composition and 2 g of water on a palm, then rub both palms together for 40 rotations. During this process, the smoothness of the massage and the density of the foam were evaluated.

[0086] Slippery texture during massage

[0087] The slipperiness is used to indicate the ability of a product to facilitate the rubbing of hands against each other and was evaluated by touch during spreading.

[0088] In particular, the slipperiness was evaluated before and during the test composition turning into foam during 40 turns of friction.

[0089] Scores from 2 to 10 were assigned to each composition for its slipperiness according to the following standard, and the average was calculated:

[0090] Score 10: extremely slippery

[0091] Score 8: very slippery

[0092] Score 6: gliding well

[0093] Score 4: not very slippery

[0094] Score 2: non-slippery

[0095] The higher the score, the better the performance of the sliding sensation.

[0096] Foam density

[0097] Foam density is used to indicate the compactness of foam quality and was evaluated by touch by pressing the foam between two palms at the end of a hand rub for 40 revolutions, respectively. The easier the foam is to press, the less dense it is.

[0098] Scores from 2 to 10 were assigned to each composition according to the following standard and their average was calculated.

[0099] Score 10: extremely good density

[0100] Score 8: very good density

[0101] Score 6: good density

[0102] Score 4: poor density

[0103] Score 2: very poor density.

[0104] The higher the score, the better the mouse density performance.

[0105] The average scores for the slippery sensation during massage and the foam density of the compositions of Inventive Example 1 and Comparative Examples 1 to 3 have been summarized in Table 3.

[0106] [Tables3] Properties El. 1 EC. 1 EC.2 EC.3 Glide during massage 7.1 5.0 6.1 4.0 Foam density 6.8 6.3 5.5 3.4

[0107] According to Table 3, compared to the compositions of Comparative Examples 1 to 3, the composition of Inventive Example 1 has better performance in terms of slipperiness during massage and foam density.

Claims

Demands

1. Composition comprising: a) at least one cellulose-based polymer; b) at least one amphoteric surfactant; and c) at least one monosaccharide selected from mannose, rhamnose, and mixtures thereof.

2. Composition according to claim 1, wherein the cellulose-based polymer is selected from methylcellulose, hydroxymethyl methylcellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose, carboxymethyl methylcellulose, carboxyethyl methylcellulose, carboxypropyl methylcellulose, mixtures thereof, more preferably, the composition comprises hydroxypropyl methylcellulose.

3. Composition according to any one of claims 1 to 2, wherein the cellulose-based polymer is present in an amount from 0.001% by weight to 5% by weight, preferably from 0.005% by weight to 3% by weight, more preferably from 0.01% by weight to 2% by weight, even more preferably from 0.02% by weight to 1% by weight, relative to the total weight of the composition.

4. Composition according to claims 1 to 3, wherein the amphoteric surfactant is selected from betaine surfactants, preferably selected from (C8-C20)alkylbetaines, (C8-C20)alkylsulfobetaines, (C8-C20)alkylamido(Cl-C6)alkylbetaines, and combinations thereof, more preferably selected from coco-betaine, cocamidopropyl betaine, lauryl betaine, lauryldimethyl betaine, capryl / capramidopropyl betaine, stearyl betaine, or mixtures thereof.

5. Composition according to any one of claims 1 to 4, wherein the amphoteric surfactant is present in an amount from 0.1% by weight to 30% by weight, preferably from 0.3% by weight to 20% by weight, more preferably from 0.5% by weight to 10% by weight, even more preferably from 1% by weight to 5% by weight, relative to the total weight of the composition.

6. Composition according to any one of claims 1 to 5, wherein the monosaccharide is rhamnose optionally in the L form of monohydrate.

7. Composition according to any one of claims 1 to 6, wherein the monosaccharide is present in an amount from 0.01% by weight to 10% by weight, preferably from 0.02% by weight to 8% by weight, more preferably from 0.05% by weight to 5% by weight, even more preferably from 0.1% by weight to 3% by weight, relative to the total weight of the composition.

8. Composition according to claim 1, comprising, relative to the total weight of the composition: a) 0.02% by weight to 1% by weight of at least one cellulose-based polymer selected from methylcellulose, hydroxymethyl methylcellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose, carboxymethyl methylcellulose, carboxyethyl methylcellulose, carboxypropyl methylcellulose, mixtures thereof; b) 1% by weight to 5% by weight of at least one amphoteric surfactant selected from (C8-C20)alkylbetaines; and c) 0.1% by weight to 3% by weight of rhamnose, optionally in the L-form of monohydrate.

9. Method for cleaning and / or removing makeup from keratinous materials, comprising applying the composition according to any one of claims 1 to 8 to the keratinous materials and rinsing said composition after an optional period of time.

10. Use of a monosaccharide selected from mannose, rhamnose, and a mixture thereof to improve the slipperiness of a composition comprising at least one cellulose-based polymer and at least one amphoteric surfactant.