W / O composition for keratin care

Abstract

To provide a novel W / O composition having improved cosmetic properties such as improved spreadability, coverage, smoothness, and stability. [Solution] The present invention provides, (a) at least one type of organic spherical filler, (b) at least one pigment coated with at least one fatty acid ester and The present invention relates to a W / O composition, which includes [a specific compound]. The composition according to the present invention can exhibit improved spreadability, coverage, smoothness, and stability, and is therefore very suitable as a cosmetic, especially a topical cosmetic for the skin.

Description

Technical Field

[0001] The present invention relates to a W / O composition for caring for keratinous substances, preferably a cosmetic W / O composition. The present invention also relates to a cosmetic method for treating and / or caring for keratinous substances.

Background Art

[0002] In the cosmetic field, water-in-oil emulsions (W / O emulsions), also called reverse emulsions, are particularly highly evaluated by consumers with respect to their cosmetic properties, especially with respect to the pleasantness of their application compared to "direct" water-in-oil emulsions, and are therefore used in many cosmetics.

[0003] For example, WO2024 / 002744 discloses A) i) at least one C

[0004] ~C 22 dialkyl, ii) at least one ester mixture of a C8-C 10 carboxylic acid and an aliphatic alcohol derived from coconut oil, iii) at least one volatile hydrocarbon oil comprising a continuous oily phase, B) an aqueous phase dispersed in the oily phase, C) at least one emulsifying non-ionic surfactant which is polyethylene glycol dipolyhydroxystearate containing 30 mol of ethylene oxide (INCI name: PEG-30 polyhydroxystearate), D) - mineral pigments selected from titanium dioxide and iron oxide, either coated or uncoated, and mixtures thereof, - organic pigments, - nacreous pearlescent agents, and mixtures thereof selected from at least one powdery colorant, and discloses a silicone-free water-in-oil emulsion.

[0004] However, there is still a need to develop a cosmetic W / O composition having improved cosmetic properties such as improved spreadability, covering property, smoothness, and stability.

[0005] Moreover, the formulation of cosmetics designed and developed in consideration of environmental issues has become a major goal in aiming to meet global challenges. Therefore, it is essential to propose more sustainable compositions, preparation methods, and ingredients to address these environmental issues.

[0006] In this context, it is important to develop novel cosmetic compositions such as novel keratin care compositions having a better carbon footprint by promoting the use of renewable raw materials and / or materials having a good naturality index and / or materials of natural origin.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Non-Patent Documents

[0008]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] An object of the present invention is to provide a novel W / O composition having improved cosmetic properties such as improved spreadability, covering property, smoothness, and stability.

Means for Solving the Problems

[0010] The above objective of the present invention is, (a) with at least one organic spherical filler. (b) at least one pigment coated with at least one fatty acid ester and This can be achieved by a W / O composition containing the following:

[0011] (a) The organic spherical filler may be selected from cellulose polymer powders.

[0012] (a) The organic spherical filler may be selected from cellulose ethers, cellulose esters, and cellulose ester ethers, particularly cellulose esters.

[0013] (b) The pigment may be an inorganic pigment.

[0014] (b) The pigment coated with at least one fatty acid ester may be selected from pigments coated with at least one fatty acid ester of an aliphatic alcohol, polyol, or sugar.

[0015] (b) Pigments coated with at least one fatty acid ester may be selected from pigments coated with polyglyceryl fatty acid esters.

[0016] Polyglyceryl fatty acid esters may have an HLB value of less than 8.0.

[0017] The amount of (a) organic spherical filler in the composition may be in the range of 0.1% to 10% by mass, preferably 0.25% to 5% by mass, and more preferably 0.5% to 3% by mass, relative to the total mass of the composition.

[0018] The amount of (b) pigment coated with at least one fatty acid ester in the composition may be in the range of 5% to 25% by mass, preferably 7.5% to 20% by mass, and more preferably 10% to 15% by mass, based on the total mass of the composition.

[0019] The composition according to the present invention may further contain at least one oil, preferably at least one ester oil.

[0020] The amount of oil in the composition may be in the range of 5% to 50% by mass, preferably 10% to 40% by mass, and more preferably 15% to 30% by mass, relative to the total mass of the composition.

[0021] The silicone content in the composition according to the present invention may be less than 15% by mass, preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, preferably 0.5% by mass or less, and particularly less than 0.1% by mass, based on the total mass of the composition, or the composition may be silicone-free or substantially silicone-free.

[0022] The compositions according to the present invention may be used for treating and / or caring for keratinous substances such as skin.

[0023] The present invention also relates to a cosmetic method for treating and / or caring for keratinous material, comprising the step of applying a composition according to the present invention onto the keratinous material. [Modes for carrying out the invention]

[0024] As a result of diligent research, the inventors discovered that a combination of component (a) at least one organic spherical filler and (b) at least one pigment coated with at least one fatty acid ester can exhibit improved ductility, coating properties, smoothness, and stability without the use of silicone synthetic materials, thus completing the present invention.

[0025] Therefore, the composition according to the present invention is (a) at least one type of organic spherical filler, (b) at least one pigment coated with at least one fatty acid ester and It is a composition containing [the specified ingredient].

[0026] Accordingly, the compositions according to the present invention can impart improved coating properties to keratin materials and exhibit improved spreadability and smoothness on keratin materials, making them highly suitable as cosmetic compositions for keratin materials, particularly topical cosmetic compositions. Furthermore, the compositions according to the present invention can exhibit improved stability in the form of a W / O emulsion.

[0027] The compositions, uses, and methods according to the present invention will be described in more detail below.

[0028] [Composition] The composition according to the present invention is (a) at least one type of organic spherical filler, (b) at least one pigment coated with at least one fatty acid ester and Includes.

[0029] The compositions according to the present invention may be intended for use as cosmetic compositions, particularly topical cosmetic compositions. Therefore, the compositions according to the present invention may be intended to be applied to keratinous materials.

[0030] In this specification, "keratin substance" means a substance that contains keratin as its main component, and examples include skin, hair, scalp, nails, lips, etc. Preferably, in this specification, "keratin substance" refers to skin. Therefore, in a preferred embodiment, the composition according to the present invention is a cosmetic composition, more particularly a topical cosmetic composition, for treating and / or caring for a keratin substance, preferably skin.

[0031] The composition according to the present invention is in the form of a W / O emulsion comprising a number of discontinuously dispersed oily phases and a single continuous aqueous phase.

[0032] The components of the composition are described in detail below.

[0033] (Organic spherical filler) The composition according to the present invention comprises (a) at least one organic spherical filler. Two or more different types of (a) organic spherical fillers may be used in combination. Therefore, a single type of (a) organic spherical filler or a combination of different types of (a) organic spherical fillers can be used.

[0034] For the purposes of this invention, the term "filler" may mean insoluble particles in the medium of the composition, regardless of the temperature at which the composition is manufactured.

[0035] (a) The organic spherical filler may be natural or synthetic, preferably natural, i.e., derived from a natural source.

[0036] (a) The organic spherical filler may have a colorless appearance or a white appearance.

[0037] (a) Examples of organic spherical fillers include acrylic polymer powder, wax powder, polyamide powder, urethane polymer powder, tetrafluoroethylene polymer powder, polyacrylonitrile powder, poly-β-alanine powder, polyethylene powder, polytetrafluoroethylene powder, lauroyl lysine, polysaccharide powder, tetrafluoroethylene polymer powder, and mixtures thereof.

[0038] In a preferred embodiment of the present invention, (a) the organic spherical filler is selected from biodegradable powders, particularly powders derived from natural resources. Therefore, in a preferred embodiment of the present invention, (a) the organic spherical filler is selected from polysaccharide powders.

[0039] Examples of polysaccharide powders include (a) organic spherical fillers, such as starch and cellulose-based polymer powders.

[0040] Among the starches that can be used, for example, are polymers in the form of polymers containing base units, which are anhydrous glucose units. The number of these units and their assemblies make it possible to distinguish between amylose (linear polymer) and amylopectin (branched polymer). The relative ratio of amylose to amylopectin, as well as their degree of polymerization, can vary depending on the plant origin of the starch.

[0041] The plant source of the starch molecules that may be used in the present invention may be grains or tubers. Therefore, the starch can be selected from, for example, corn starch, rice starch, cassava starch, barley starch, potato starch, wheat starch, sorghum starch, and pea starch.

[0042] Starches can be chemically or physically modified, in particular, by one or more of the following reactions: gelatinization, oxidation, crosslinking, esterification, etherification, amidation, and heat treatment.

[0043] Products containing distarch phosphate or compounds rich in distarch phosphate, such as those marketed by Avebe under the reference names Prejel VA-70-T AGGL (gelatinized hydroxypropyl cassava distarch phosphate), Prejel TK1 (gelatinized cassava distarch phosphate), and Prejel 200 (gelatinized acetyl cassava distarch phosphate), or by National Starch under the reference name Structure Zea (gelatinized corn distarch phosphate), will be used preferentially.

[0044] According to the present invention, amphoteric starches may also be used, which contain one or more anionic groups and one or more cationic groups. The anionic group and the cationic group may be bonded to the same or different reaction sites of the starch molecule; they are preferably bonded to the same reaction site. The anionic group may be of the carboxyl, phosphate, or sulfate type, preferably carboxyl. The cationic group may be of the primary, secondary, tertiary, or quaternary amine type.

[0045] The starch molecules may be derived from any plant starch source, particularly corn, potato, oat, rice, tapioca, sorghum, barley, or wheat. Hydrolyzed starches of the above-mentioned starches can also be used. The starch is preferably derived from potato.

[0046] The starch may optionally be C1-C6 hydroxyalkylated or C1-C6 acylated (e.g., acetylated). The starch may also be heat-treated.

[0047] According to the present invention, the term "cellulose-based polymer" means any polysaccharide compound having a sequence of glucose residues linked together via β-1,4 bonds in its structure, and in addition to unsubstituted cellulose, cellulose derivatives can be anionic, cationic, amphoteric, or nonionic. Therefore, cellulose-based polymers include cellulose and its derivatives.

[0048] In cellulose derivatives, the hydroxyl groups of cellulose can react partially or entirely with various chemical reagents. Examples of cellulose derivatives include cellulose ethers, cellulose esters, and cellulose ester ethers.

[0049] Among cellulose esters, examples include inorganic cellulose esters (such as cellulose nitrate, sulfuric acid, and phosphate esters), organic cellulose esters (such as cellulose acetate, cellulose triacetate, amide propionate, acetate butyrate, acetate propionate, and acetate trimellitate), and mixed organic / inorganic cellulose esters, such as cellulose acetate butyrate sulfate and cellulose acetate propionate sulfate.

[0050] Among cellulose ester ethers, hydroxypropyl methylcellulose phthalate and ethylcellulose sulfate are examples.

[0051] Among nonionic cellulose ethers, examples include (C1-C4) alkylcellulose, such as methylcellulose and ethylcellulose, such as Ethocel standard 100 Premium from Dow Chemical; (poly)hydroxy(C1-C4) alkylcellulose, such as hydroxymethylcellulose and hydroxyethylcellulose, such as Natrosol 250 HHR provided by Aqualon, and hydroxypropylcellulose, such as Klucel EF from Aqualon; mixed (poly)hydroxy(C1-C4) alkyl-(C1-C4) alkylcellulose, such as hydroxypropyl methylcellulose, such as Methocel E4M from Dow Chemical; hydroxyethyl methylcellulose, hydroxyethyl ethylcellulose, such as Bermocoll E 481 FQ from Akzo Noble; and hydroxybutyl methylcellulose.

[0052] Among anionic cellulose ethers that do not have fatty acid chains, (poly)carboxy(C1-C4)alkylcellulose and their salts can be mentioned. Examples include carboxymethylcellulose, carboxymethylmethylcellulose (e.g., Blanose 7M from Aqualon), and carboxymethylhydroxyethylcellulose, as well as their sodium salts.

[0053] Among cationic cellulose ethers, crosslinked or uncrosslinked quaternary hydroxyethylcellulose can be mentioned.

[0054] The quaternizing agent may be glycidyltrimethylammonium chloride or a fatty amine such as laurylamine or stearylamine. Another cationic cellulose ether that can be mentioned is hydroxyethylcellulose hydroxypropyltrimethylammonium.

[0055] Quaternary cellulose derivatives are particularly, - Quaternized cellulose modified with a group containing at least one fatty chain, such as an alkyl group containing at least eight carbon atoms, an arylalkyl group, or an alkylaryl group, or a mixture thereof. - Quaternary hydroxyethyl cellulose modified with a group containing at least one fatty chain, such as an alkyl group containing at least eight carbon atoms, an arylalkyl group, or an alkylaryl group, or a mixture thereof.

[0056] The alkyl group held by the above-mentioned quaternized cellulose or hydroxyethylcellulose preferably contains 8 to 30 carbon atoms. The aryl group preferably represents a phenyl, benzyl, naphthyl, or anthryl group.

[0057] Examples of quaternized alkylhydroxyethylcelluloses containing C8-C30 fatty acid chains that can be shown include Quatrisoft LM 200, Quatrisoft LM-X529-18-A, Quatrisoft LM-X529-18B (C12 alkyl), and Quatrisoft LM-X529-8 (C18 alkyl) sold by Amerchol, as well as Crodacel QM, Crodacel QL (C12 alkyl), and Crodacel QS (C18 alkyl) sold by Croda.

[0058] The degree of hydroxyalkylation corresponds to the number of alkylene oxide molecules consumed by the number of free hydroxyl functional groups present in the guar gum, and may be in the range of, for example, 0.4 to 1.2.

[0059] Among cellulose derivatives, the following can also be listed: - Cellulose modified with a group containing at least one fatty acid chain, such as Natrosol Plus Grade 330 CS (C16 alkyl) sold by Aqualon, and hydroxyethyl cellulose modified with an alkyl group, particularly a C8-C22 alkyl group, arylalkyl group and alkylaryl group, which contains at least one fatty acid chain, and - Cellulose modified with polyalkylene glycol alkylphenyl ether groups, for example, Amercell Polymer HM-1500 [polyethylene glycol (15) nonylphenyl ether], a product sold by Amerchol.

[0060] In a preferred embodiment of the present invention, (a) the organic spherical filler is chemically modified by, for example, one or more of the following reactions: gelatinization, oxidation, crosslinking, esterification, etherification, amidation, heat treatment, and especially esterification. These chemical modifications differ from physical modifications in which the two objects are not chemically bonded.

[0061] In the most preferred embodiment of the present invention, (a) the organic spherical filler is selected from cellulose powder and cellulose ester powder, particularly cellulose acetate powder. A commercially available product of cellulose acetate spherical cellulose powder is BELLOCEA® manufactured by Daicel.

[0062] (a) The average particle size of the organic spherical filler is not limited, but is generally 0.5 μm or larger, preferably 1 μm or larger, more preferably 2 μm or larger, and / or generally 50 μm or smaller, preferably 25 μm or smaller, more preferably 10 μm or smaller. When used herein, the term "average particle size" refers to the number-average size mean diameter given by the statistical particle size distribution for half of the population, and is referred to as D50. For example, the number-average particle size can be measured with a laser diffraction particle size distribution analyzer, such as the Mastersizer 2000 from Malvern Corp.

[0063] The organic spherical filler may have an average roundness of 0.8 or higher, preferably 0.82 or higher. The organic spherical filler may have an average roundness of less than 1, preferably 0.99 or lower, or more preferably 0.98 or lower.

[0064] "Average roundness" can be determined by image analysis methods. In particular, "average roundness" can be the arithmetic mean of roundness obtained by image analysis of scanning electron microscope (SEM) images of 1000 or more particles observed at 1000x magnification using secondary electron detection with a scanning electron microscope (SEM).

[0065] The "roundness" of each particle is given by the following formula: C = 4πS / L 2 (In the formula, C represents the roundness, S represents the area (projected area) of the particle in the image, and L represents the length of the perimeter (outer edge) of the particle in the image.) This value is determined by [the following factor]. As the average roundness approaches 1, the shape of each particle becomes more spherical.

[0066] The amount of (a) organic spherical filler in the composition according to the present invention may be 0.1% by mass or more, preferably 0.25% by mass or more, and more preferably 0.5% by mass or more, based on the total mass of the composition.

[0067] The amount of (a) organic spherical filler in the composition according to the present invention may be 10% by mass or less, preferably 5% by mass or less, and more preferably 3% by mass or less, based on the total mass of the composition.

[0068] The amount of (a) organic spherical filler in the composition according to the present invention may be in the range of 0.1% to 10% by mass, preferably 0.25% to 5% by mass, and more preferably 0.5% to 3% by mass, based on the total mass of the composition.

[0069] In the context of this specification, any combination of the above upper and lower limits may be used to represent a range of preferred quantities.

[0070] (Pigments coated with at least one type of fatty acid ester) The composition according to the present invention comprises (b) at least one pigment coated with at least one fatty acid ester. Two or more different types of (b) pigments may be used in combination. Therefore, a single type of (b) pigment or a combination of different types of (b) pigments can be used.

[0071] The term "pigment" means white or colored mineral or organic particles that are insoluble in aqueous media and intended to color and / or opaque the resulting composition. In one embodiment of the present invention, (b) the pigment exhibits a color other than white.

[0072] According to certain embodiments, the pigments used in the present invention are selected from mineral pigments. The term "mineral pigment" means any inorganic pigment. Among the mineral pigments useful in the present invention are metal oxides, such as zirconium oxide or cerium oxide, titanium dioxide and also zinc oxide, iron oxide (black, yellow or red) or chromium oxide, as well as manganese violet, ultramarine blue, chromium hydrate and ferric blue, and metal powders, such as aluminum powder or copper powder, or any combination thereof. The following mineral pigments can also be used: TiO2, ZrO2, Nb2O5, CeO2, or Ta2O5, Ti3O5, Ti2O3, TiO, ZrO2 as mixtures with ZnS. In the context of the present invention, mineral pigments are more specifically iron oxide, aluminum hydroxide, and / or titanium dioxide.

[0073] Pigments may also be particles having pearly and / or metallic glints. The term “pearly” should be understood to mean iridescent or non-iridescent colored particles of any shape, in particular those produced or synthesized in the shells of certain mollusks that have a color effect through optical interference.

[0074] Pearlescent luster can be selected from pearlescent pigments, such as titanium mica coated with iron oxide, titanium mica coated with bismuth oxychloride, titanium mica coated with chromium oxide, titanium mica coated with organic dyes, and even pearlescent pigments based on bismuth oxychloride. They may also be mica particles with at least two continuous layers of metal oxides and / or organic dyes superimposed on their surface.

[0075] (b) The pigment is coated with at least one fatty acid ester. That is, (b) the pigment is surface-treated with at least one fatty acid ester.

[0076] Examples of fatty acid esters include monoesters, diesters, triesters, tetraesters, and polyesters, as well as combinations thereof.

[0077] The fatty acids of one or more fatty acid portions of the fatty acid ester may be selected from linear or branched saturated or unsaturated fatty acids, preferably branched saturated fatty acids. The fatty acids may contain 8 to 24 carbon atoms, preferably 12 to 22 carbon atoms, and more preferably 16 to 20 carbon atoms.

[0078] Examples of fatty acids include caprylic acid, 2-ethylhexanoic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, isotridecanoic acid, myristic acid, isomyristateic acid, pentadecyl acid, palmitic acid, isopalmitic acid, margaric acid, stearic acid, and isostearic acid. Among these fatty acids, caprylic acid, capric acid, and isostearic acid are preferred. Two or more fatty acids may be used in the combined glycerol fatty acid ester.

[0079] Examples of fatty acid esters include fatty acid esters of aliphatic alcohols, polyols, or sugars.

[0080] Aliphatic alcohols for fatty acid esters include C8-C alcohols such as myristyl alcohol, cetanol, cetearyl alcohol, stearyl alcohol, arachidyl alcohol, and behenyl alcohol. 22 It may also be an aliphatic alcohol. Examples of fatty acid esters of aliphatic alcohols, but not limited to these, include myristyl myristate and cetyl palmitate.

[0081] Examples of sugars for fatty acid esters include, but are not limited to, sucrose, maltose, glucose, fructose, and sorbitol. Examples of fatty acid esters of sugars, particularly sorbitol, include, but are not limited to, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquistearate, and sorbitan tristearate.

[0082] Examples of polyols for fatty acid esters include, but are not limited to, glycerol, ethylene glycol, propylene glycol, and polymers thereof, such as polyglycerol, polyethylene glycol, and polypropylene glycol. Examples of fatty acid esters of polyols, particularly propylene glycol, include, but are not limited to, propylene glycol monopalmitate and propylene glycol monostearate.

[0083] In a preferred embodiment, (b) the fatty acid ester for surface treatment of the pigment is selected from mono or polyglyceryl fatty acid esters.

[0084] For the purposes of this invention, the term "glyceryl fatty acid ester" means, as used herein, a glycerol ester of a fatty acid in which at least one hydroxyl group of glycerol is esterified with at least one fatty acid. The glycerol fatty acid ester may be a monoglycerol fatty acid ester containing one glycerol molecule, or a polyglycerol fatty acid ester containing two or more glycerol molecules. Preferably, the glycerol fatty acid ester used in this invention is selected from polyglycerol fatty acid esters.

[0085] Examples of monoglyceryl fatty acid esters include glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl distearate, glyceryl tristearate, glyceryl monoisostearate, glyceryl diisostearate, glyceryl triisostearate, glyceryl monohydroxystearate, glyceryl monooleate, glyceryl monobehenate, and glyceryl dibehenate, as well as combinations thereof.

[0086] The polyglycerol fatty acid ester may contain 2 to 10 glycerol units, preferably 2 to 6 glycerol units, more preferably 2 to 4 glycerol units, even more preferably 2 or 3 glycerol units, and especially 2 glycerol units.

[0087] In fatty acid esters, the hydroxyl groups of glycerol are esterified with a carboxylic acid, either partially or entirely. (b) For better dispersion properties of the pigment, it is preferable that more hydroxyl groups of glycerol are esterified. In one embodiment of the present invention, the esterification ratio of the glycerol fatty acid ester may be 50% or more, preferably 75% or more, and more preferably 90% or more. In another preferred embodiment, the hydroxyl groups of glycerol are esterified entirely with a carboxylic acid. The esterification ratio may, as used herein, represent the ratio of esterified hydroxyl groups to the total amount of hydroxyl groups available for esterification in the monoglycerol or polyglycerol portion.

[0088] Fatty acid esters may have an HLB (hydrophilic-lipophilic balance) value of 1.0 to 16.0. The term HLB ("hydrophilic-lipophilic balance") is well known to those skilled in the art and reflects the ratio of hydrophilic to lipophilic parts in a molecule. When two or more polyglyceryl fatty acid esters are used, the HLB value is determined by the weighted average of the HLB values ​​of all polyglyceryl fatty acid esters. (b) For better dispersion properties of the pigment, it is preferable that the glycerol fatty acid ester is more hydrophobic than hydrophilic. Therefore, the glyceryl fatty acid ester preferably has an HLB value in the range of 1.0 to 10.0, more preferably 1.5 to 8.0.

[0089] (b) Examples of polyglyceryl fatty acid esters used for surface treatment of pigments include: PG2 caprylate, PG2 sesquicaprylate, PG2 dicaprylate, PG2 tricaprylate, PG2 caprate, PG2 sesquicaprate, PG2 dicaprate, PG2 tricaprate, PG2 laurate, PG2 sesquilaurate, PG2 dilaurate, PG2 trilaurate, PG2 myristic acid, PG2 sesquimyristic acid, PG2 dimyristic acid, PG2 trimyristic acid, PG2 stearate, PG2 sesquistearate, PG2 distearate, and tristearyl PG2. PG2 nitrate, PG2 isostearate, PG2 sesquiisostearate, PG2 diisostearate, PG2 triisostearate, PG2 tetraisostearate, PG2 oleate, PG2 sesquioleate, PG2 dioleate, PG2 trioleate, PG3 caprylate, PG3 sesquicaprylate, PG3 dicaprylate, PG3 tricaprylate, PG3 caprate, PG3 sesquicaprate, PG3 dicaprate, PG3 tricaprate, PG3 laurate, PG3 sesquilaurate, PG3 dilaurate, PG3 trilaurate, myristic acid PG3 acid, PG3 sesquimyristate, PG3 dimyristate, PG3 trimyristate, PG3 stearate, PG3 sesquistearate, PG3 distearate, PG3 tristearate, PG3 isostearate, PG3 sesquiisostearate, PG3 diisostearate, PG3 triisostearate, PG3 oleate, PG3 sesquioleate, PG3 dioleate, PG3 trioleate, PG4 caprylate, PG4 sesquicaprylate, PG4 dicaprylate, PG4 tricaprylate, PG4 caprate, PG4 sesquicaprate, dicaprylate PG4 granate, PG4 tricaprate, PG4 laurate, PG4 sesquilaurate, PG4 dilaurate, PG4 trilaurate, PG4 myristate, PG4 sesquimyristate, PG4 dimyristate, PG4 trimyristate, PG4 stearate, PG4 sesquistearate, PG4 distearate, PG4 tristearate, PG4 isostearate, PG4 sesquiisostearate, PG4 diisostearate, PG4 triisostearate, PG4 oleate, PG4 sesquioleate, PG4 dioleate, PG4 trioleate,PG5 caprylate, PG5 sesquicaprylate, PG5 dicaprylate, PG5 tricaprylate, PG5 tetracaprylate, PG5 caprate, PG5 sesquicaprate, PG5 dicaprate, PG5 tricaprate, PG5 tetracaprate, PG5 laurate, PG5 sesquilaurate, PG5 dilaurate, PG5 trilaurate, PG5 tetralaurate, PG5 myristic acid, PG5 sesquimyristic acid, PG5 dimyristic acid, PG5 trimyristic acid, PG5 tetramyristic acid, PG5 stearate, PG5 sesquistearate, dist PG5 arginine, PG5 tristearate, PG5 tetrastearate, PG5 isostearate, PG5 sesquiisostearate, PG5 diisostearate, PG5 triisostearate, PG5 tetraisostearate, PG5 oleate, PG5 sesquioleate, PG5 dioleate, PG5 trioleate, PG5 tetraoleate, PG6 caprylate, PG6 sesquicaprylate, PG6 dicaprylate, PG6 tricaprylate, PG6 tetracaprylate, PG6 pentacaprylate, PG6 caprate, PG6 sesquicaprate, dicaprine PG6 acid, PG6 tricaprate, PG6 tetracaprate, PG6 pentacaprate, PG6 laurate, PG6 sesquilaurate, PG6 dilaurate, PG6 trilaurate, PG6 tetralaurate, PG6 pentalaurate, PG6 myristic acid, PG6 sesquimyristic acid, PG6 dimyristic acid, PG6 trimyristic acid, PG6 tetramyristic acid, PG6 pentamiristic acid, PG6 stearate, PG6 sesquistearate, PG6 distearate, PG6 tristearate, PG6 tetrastearate, PG6 pentastearate G6, PG6 isostearate, PG6 sesquiisostearate, PG6 diisostearate, PG6 triisostearate, PG6 tetraisostearate, PG6 pentaisostearate, PG6 oleate, PG6 sesquioleate, PG6 dioleate, PG6 trioleate, PG6 tetraoleate, PG6 pentaoleate, PG10 caprylate, PG10 sesquicaprylate, PG10 dicaprylate, PG10 tricaprylate, PG10 tetracaprylate, PG10 pentacaprylate, PG10 hexacaprylate, PG10 capratePG10 sesquicaprate, PG10 dicaprate, PG10 tricaprate, PG10 tetracaprate, PG10 pentacaprate, PG10 hexacaprate, PG10 laurate, PG10 sesquilaurate, PG10 dilaurate, PG10 trilaurate, PG10 tetralaurate, PG10 pentalaurate, PG10 hexalaurate, PG10 myristic acid, PG10 sesquimyristic acid, PG10 dimyristic acid, PG10 trimyristic acid, PG10 tetramyristic acid, PG10 pentamiristic acid, PG10 hexamyristate, PG10 stearate, PG10 sesquistearate, dis Examples include PG10 thearate, PG10 tristearate, PG10 tetrastearate, PG10 pentastearate, PG10 hexastearate, PG10 isostearate, PG10 sesquiisostearate, PG10 diisostearate, PG10 triisostearate, PG10 tetraisostearate, PG10 pentaisostearate, PG10 hexaisostearate, PG10 oleate, PG10 sesquioleate, PG10 dioleate, PG10 trioleate, PG10 tetraoleate, PG10 pentaoleate, and PG10 hexaoleate, as well as mixtures thereof.

[0090] (b) The pigment preferably has high hydrophobicity. Therefore, the polyglyceryl fatty acid ester preferably has a low HLB value. For example, the glyceryl fatty acid ester preferably has an HLB value in the range of 1.0 to 7.0, more preferably 1.0 to 5.0. Therefore, preferred polyglyceryl fatty acid esters include PG2 stearate (HLB: 5.0), PG2 distearate (HLB: 4), PG2 diisostearate (HLB: 3.2), PG2 triisostearate (HLB: 3), PG2 tetraisostearate (HLB: 1.3), PG2 sesquiisostearate (HLB: approximately 4), PG2 sesquioleate (HLB: 5.3), PG3 distearate (HLB: 5), PG3 diisostearate (HLB: 5), PG3 coconut oil fatty acid (HLB: 7), PG5 hexastearate (HLB: 4.0), PG5 trioleate (HLB: 7.0), PG10 pentaoleate (HLB: 6.4), and mixtures thereof.

[0091] The average particle size of coated pigments is generally 100 nm or larger. The average particle size of coated pigments according to the present invention may be in the range of 100 nm to 25 μm, preferably 200 nm to 10 μm. For the purposes of the present invention, the D50 diameter or volume average diameter corresponds to a particle size defined such that 50% of the particle volume has a diameter greater than D50. The volume average diameter may be evaluated by photodiffraction using a Malvern MasterSizer laser particle size analyzer, wherein the particles to be evaluated are dispersed in a liquid medium, for example, in octyldodecyl neopentanoate.

[0092] Surface-treated pigments can be prepared according to surface treatment techniques of chemical, electronic, mechanochemical, or mechanical nature, which are well known to those skilled in the art. Alternatively, commercially available products may be used. The isopropyl titanium triisostearate surface agent can be absorbed, adsorbed, or grafted onto the pigment surface by evaporation of the solvent, chemical reactions, and covalent bond formation.

[0093] According to one embodiment of the present invention, the surface treatment comprises a coating of a pigment. For the purposes of the present invention, "coating" of a pigment generally refers to a whole or partial surface treatment of the pigment using a surface agent that is absorbed, adsorbed, or grafted onto the pigment. The coating may account for 0.1% to 20% by mass, particularly 0.5% to 5% by mass, of the total mass of the coated pigment.

[0094] (b) Surface-treated pigments exhibit hydrophobic and lipophilic properties. Accordingly, (b) pigments may be dispersed in the oily phase of the composition according to the present invention.

[0095] In one preferred embodiment of the present invention, (b) the pigment is selected from titanium dioxide and aluminum hydroxide coated with polyglyceryl-2 tetraisostearate and iron oxide coated with polyglyceryl-2 tetraisostearate.

[0096] The amount of (b) pigment in the composition according to the present invention may be 5% by mass or more, preferably 7.5% by mass or more, and more preferably 10% by mass or more, based on the total mass of the composition.

[0097] The amount of (b) pigment in the composition according to the present invention may be 25% by mass or less, preferably 20% by mass or less, and more preferably 15% by mass or less, based on the total mass of the composition.

[0098] The amount of (b) pigment in the composition according to the present invention may be 5% to 25% by mass, preferably 7.5% to 20% by mass, and more preferably 10% to 15% by mass, based on the total mass of the composition.

[0099] (Optional components) The composition according to the present invention may contain the following optional components.

[0100] - oil The composition according to the invention may contain at least one oil. Two or more oils may be used in combination. Therefore, a single type of oil or a combination of different types of oils can be used.

[0101] The oil forms the oily phase of the W / O emulsion composition according to the invention.

[0102] As used herein, "oil" refers to a fatty compound or substance that is in the form of a liquid, paste (non-solid), or solid, preferably liquid or paste, at room temperature (25 °C) under atmospheric pressure (10 5 Pa). As oils, those commonly used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile.

[0103] Among the oils that can be used in the present invention, volatile or non-volatile oils can be mentioned, and these oils may be hydrocarbon oils, especially those of animal or plant origin, synthetic oils, or mixtures thereof.

[0104] For the purposes of the present invention, "hydrocarbon oil" or "hydrocarbon-based oil" is intended to mean an oil that mainly contains hydrogen atoms and carbon atoms, and optionally oxygen atoms, nitrogen atoms, sulfur atoms and / or phosphorus atoms. Hydrocarbon-based oils do not contain any silicon atoms.

[0105] For the purposes of the present invention, "polar oil" is intended to mean an oil whose solubility parameter δ a at 25 °C is other than 0 (J / cm 3 ). 1 / 2 Specifically, "polar oil" is intended to mean an oil whose chemical structure is essentially formed from or even consists of carbon atoms and hydrogen atoms and contains at least one highly electronegative heteroatom, such as an oxygen atom, a nitrogen atom, a silicon atom or a phosphorus atom.

[0106] In particular, "polar oil" is intended to mean an oil whose chemical structure is essentially formed from or even consists of carbon atoms and hydrogen atoms and contains at least one highly electronegative heteroatom, such as an oxygen atom, a nitrogen atom, a silicon atom or a phosphorus atom.

[0107] The definition and calculation of solubility parameters in Hansen's three-dimensional solubility space are described in the paper by C.M. Hansen: The three-dimensional solubility parameters, J. Paint Technol, Vol. 39, p. 105 (1967).

[0108] According to this Hansen space, - δ D It is characterized by London dispersion forces arising from the formation of dipoles induced during molecular collisions, - δ p It is characterized by a Debye interaction force between permanent dipoles, and also by a Chasom interaction force between an induced dipole and a permanent dipole. - δ h It is characterized by specific interaction forces (e.g., hydrogen bonds, acid / base bonds, donor / acceptor bonds, etc.), - δ a The following equation: δ a =( δ p 2 +δ h 2 ) 1 / 2 It is determined by [the following].

[0109] parameter δ p , δ h , δ D , and δ a is, (J / cm 3 ) 1 / 2 It is represented as follows.

[0110] Preferably, the polar oil used in accordance with the present invention has a δ between 4 and 9.1. a Preferably between 6 and 9.1 δ a Furthermore, even better, δ between 7.3 and 9.1 a It has.

[0111] Hydrocarbon oils may be selected from the following: - Linear or branched, optionally cyclic C6-C 16Lower alkanes. Examples include hexane, undecane, dodecane, tridecane, and isoparaffins, such as isohexadecane, isododecane, and isodecane. - Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane. - Alkanes, for example, mixtures of C9-12 alkanes, C10-13 alkanes, C13-14 alkanes, C13-15 alkanes, C14-17 alkanes, C14-19 alkanes, C15-19 alkanes, C15-23 alkanes, C18-21 alkanes, C8-9 alkanes / cycloalkanes, C9-10 alkanes / cycloalkanes, C9-11 alkanes / cycloalkanes, C9-16 alkanes / cycloalkanes, C10-12 alkanes / cycloalkanes, C11-14 alkanes / cycloalkanes, C11-15 alkanes / cycloalkanes, and C12-13 alkanes / cycloalkanes.

[0112] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, petrolatum or petrolatum, naphthalene, etc.; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymers; and mixtures thereof.

[0113] Examples of vegetable oils include, for instance, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0114] Examples of animal oils include squalene and squalane.

[0115] Examples of synthetic oils include alkane oils, such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0116] Ester oils are preferably saturated or unsaturated, linear or branched C1-C123. 26 Aliphatic monoacid or polyacid and saturated or unsaturated linear or branched C1-C12 chains. 26 It is a liquid ester of an aliphatic monoalcohol or polyalcohol, and the total number of carbon atoms in these esters is 10 or more.

[0117] Preferably, in the case of a monoalcohol ester, at least one of the alcohols and acids from which the ester of the present invention is derived is branched.

[0118] Among the monoesters of monoacids and monoalcohols, examples include ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, alkyl myristate, for example isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and (caprylic / capric acid) coconut alkyl, which is an ester mixture of caprylic acid (C8), capric acid (C10), and coconut oil fatty alcohol.

[0119] C4~C 22 Dicarboxylic acid or tricarboxylic acid and C1-C 22 Esters with alcohols, and non-sugars C4-C with monocarboxylic acids, dicarboxylic acids, or tricarboxylic acids. 26 Esters with dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols can also be used.

[0120] In particular, diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactic acid, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate, and diethylene glycol diisononanoate.

[0121] As an ester oil, in particular, carbon dioxide of the following formula: R1COOR2 (wherein R1 and R2 independently represent linear or branched alkyl groups containing 1 to 16 atoms such that the total number of carbon atoms in the R1 and R2 groups is 12 to 22) 12 ~C 22 Dialkyl groups can be cited.

[0122] Carbonated (C 12 ~C 22 The dialkyl groups that can be listed are as follows: - Di-2-ethylhexyl carbonate (C17), for example, a product sold by Evonik Nutrition & Care GmbH under the trade name Tegosoft DEC (registered trademark). - Dicaprylyl carbonate (C17), for example, products sold under the trade names Cetiol CC® (BASF Corporation) and OriStar DCC® (Orient Stars LLC), - A mixture of C14-C15 dialkyl carbonates (INCI name: C14-C15 dialkyl carbonate), for example, products sold by Enichem SpA under the trade name Lialcarb SR-1000 / R (registered trademark) and by Orient Stars LLC under the trade name OriStar C14-15 DAC (registered trademark). - Dipropylheptyl carbonate (C21), for example, a product sold by BASF under the trade name Cetiol 4 All (registered trademark).

[0123] In one particularly preferred embodiment, the dialkyl carbonate is dicaprylyl carbonate.

[0124] As for ester oils, C6~C 30 Preferably C 12 ~C 22 Fatty acid sugar esters and diesters can be used. The term "sugar" is meant to refer to an oxygen-containing hydrocarbon compound that contains several alcohol functional groups, has or does not have aldehyde or ketone functional groups, and contains at least four carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

[0125] Examples of suitable sugars that can be listed include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, and lactose, as well as their derivatives, particularly alkyl derivatives, such as methyl derivatives, for example, methyl glucose.

[0126] Fatty acid sugar esters are, in particular, the aforementioned sugars and linear or branched, saturated or unsaturated C6-C6 fatty acids. 30 Preferably C 12 ~C 22 The group can be selected from those comprising esters or ester mixtures with fatty acids. If they are unsaturated, these compounds may have 1 to 3 conjugated or unconjugated carbon-carbon double bonds.

[0127] Esters produced by this variant can also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, as well as mixtures thereof.

[0128] These esters may be, for example, oleic acid esters, lauric acid esters, palmitic acid esters, myristic acid esters, behenic acid esters, coconut fatty acid esters, stearic acid esters, linoleic acid esters, linolenic acid esters, capric acid esters and arachidonic acid esters, or mixtures thereof, for example, particularly mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

[0129] More specifically, monoesters and diesters, in particular monooleates or dioleates of sucrose, glucose or methyl glucose, stearates, behenates, oleopalmitates, linoleates, linolenicates and oleostearates are used.

[0130] One example that can be cited is the product sold by Amerchol under the name Glucate(registered trademark)DO, which is methyl glucose dioleate.

[0131] Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylic / capric acid, methyl palmitate, ethyl palmitate, isopropyl palmitate, and dicaprate. Examples include lylyl, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0132] As ether oil, the following formula: R 1 -OR 2 (In the formula, R 1 and R 2 Each of these independently forms a linear, branched, or cyclic C4-C4 chain. 24 Alkyl alkyl groups, preferably C6-C 18 Alkyl alkyl groups, more preferably C8~C 12 (Indicates an alkyl group) Examples of dialkyl ethers can be given, such as those represented by R. 1 and R 2 It is preferable that they be the same.

[0133] Examples of linear alkyl groups include butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, nonadecyl group, eicosyl group, behenyl group, docosyl group, tricosyl group, and tetracosyl group.

[0134] Examples of branched alkyl groups include 1-methylpropyl group, 2-methylpropyl group, t-butyl group, 1,1-dimethylpropyl group, 3-methylhexyl group, 5-methylhexyl group, 1-ethylhexyl group, 2-ethylhexyl group, 1-butylpentyl group, 5-methyloctyl group, 2-butyloctyl group, isotridecyl group, 2-pentylnonyl group, 2-hexyldecyl group, isostearyl group, 2-heptylundecyl group, 2-octyldodecyl group, 1,3-dimethylbutyl group, 1-(1-methylethyl)-2-methylpropyl group, 1,1,3,3-tetramethylbutyl group, 3,5,5-trimethylhexyl group, 1-(2-methylpropyl)-3-methylbutyl group, 3,7-dimethyloctyl group, and 2-(1,3,3-trimethylbutyl)-5,7,7-trimethyloctyl group.

[0135] Examples of cyclic alkyl groups include cyclohexyl, 3-methylcyclohexyl, and 3,3,5-trimethylcyclohexyl groups.

[0136] Examples of artificial triglycerides include, for instance, caprylcaprylyl glyceride, glyceryl trimyristicate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri(caprate / caprylic acid)glyceryl, and tri(caprate / caprylic acid / linolenic acid)glyceryl.

[0137] In one preferred embodiment, the oil contained in the composition according to the present invention is C carbonate. 12 ~C 22 It comprises at least one ester oil selected from dialkyls, such as dicaprylyl carbonate, and monoesters of monoacids and monoalcohols, such as (caprylic acid / capric acid) coconut alkyl.

[0138] In another preferred embodiment, the composition according to the present invention contains at least one hydrocarbon oil, particularly a volatile hydrocarbon oil, such as isododecane.

[0139] The amount of oil in the composition according to the present invention may be 5% by mass or more, preferably 10% by mass or more, and more preferably 15% by mass or more, based on the total mass of the composition.

[0140] The total amount of oil in the composition according to the present invention may be 50% by mass or less, preferably 40% by mass or less, and more preferably 30% by mass or less, based on the total mass of the composition.

[0141] The total amount of oil in the composition according to the present invention may be in the range of 5% to 50% by mass, preferably 10% to 40% by mass, and more preferably 15% to 30% by mass, based on the total mass of the composition.

[0142] - water The composition according to the present invention may contain water.

[0143] Water forms the aqueous phase of the W / O emulsion composition according to the present invention.

[0144] The amount of water in the composition may be 10% by mass or more, preferably 20% by mass or more, and more preferably 30% by mass or more, based on the total mass of the composition.

[0145] The amount of water in the composition according to the present invention may be 60% by mass or less, preferably 50% by mass or less, and more preferably 40% by mass or less, based on the total mass of the composition.

[0146] The amount of water in the composition according to the present invention may be in the range of 10% to 60% by mass, preferably 20% to 50% by mass, and more preferably 30% to 40% by mass, based on the total mass of the composition.

[0147] - Polyol The composition according to the present invention may contain at least one polyol. Two or more polyols may be combined.

[0148] For the purposes of this invention, the term "polyol" should be understood to mean any aliphatic compound containing at least two free hydroxyl groups.

[0149] The polyol can form the aqueous phase of the W / O emulsion composition according to the present invention.

[0150] The polyol may be a linear, branched, or alicyclic saturated or unsaturated alkyl compound having at least two -OH functional groups on the alkyl chain.

[0151] Preferably, the polyol of the present invention is a linear or branched, preferably linear alkyl-type compound having at least two -OH functional groups, preferably two to five -OH functional groups, more preferably two to four -OH functional groups, and even more preferably two or three -OH functional groups on the alkyl chain.

[0152] The polyols that can be used in the compositions of the present invention may, in particular, have 2 to 10 carbon atoms, preferably 3 to 8 carbon atoms.

[0153] The polyols that can be used in the compositions of the present invention are selected from linear or branched polyols having 3 to 8 carbon atoms, preferably linear polyols, and include, in particular: - Diols such as hexylene glycol, dipropylene glycol, pentylene glycol, caprylyl glycol, propylene glycol, and butylene glycol, and - Triols such as glycerol (glycerin), And mixtures thereof.

[0154] In one preferred embodiment, the composition according to the present invention comprises a combination of two or more polyols. In another preferred embodiment, the composition according to the present invention comprises at least one diol and at least one triol. In yet another preferred embodiment, the composition according to the present invention comprises at least two or three diols and at least one triol.

[0155] The amount of polyol in the composition may be 1% by mass or more, preferably 3% by mass or more, and more preferably 5% by mass or more, based on the total mass of the composition.

[0156] The amount of polyol in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, and more preferably 10% by mass or less, based on the total mass of the composition.

[0157] The amount of polyol in the composition according to the present invention may be in the range of 1% to 20% by mass, preferably 3% to 15% by mass, and more preferably 5% to 10% by mass, based on the total mass of the composition.

[0158] - Surfactants The composition according to the present invention may contain at least one surfactant. Two or more surfactants can be used in combination. Therefore, a single type of surfactant or a combination of different types of surfactants can be used.

[0159] The surfactant may be selected from amphoteric, anionic, cationic, or nonionic surfactants, used alone or in mixtures. Preferably, the composition contains at least one nonionic surfactant.

[0160] Examples of nonionic surfactants usable in the compositions of the present invention include polyethoxylated aliphatic alcohols or polyglycerolated aliphatic alcohols, such as ethylene oxide adducts of lauryl alcohol, particularly those containing 9 to 50 oxyethylene units (INCI names: laureth-9 to laureth-50), especially laureth-9; esters of polyols with fatty acids having saturated or unsaturated chains containing, for example, 8 to 24 carbon atoms; and oxyalkylene derivatives thereof, i.e., those containing oxyethylene units and / or oxypropylene units, such as glycerol and C8-C 24 Esters with fatty acids, and their oxyalkylene derivatives, particularly polyoxyethylene-modified glyceryl stearate (mono, di, and / or tristearate), e.g., PEG-30 dipolyhydroxystearate and PEG-20 glyceryl triisostearate; sugars and C8-C 24 Esters with fatty acids, and their oxyalkylene derivatives, for example, C8-C 24 Polyethoxylated sorbitol esters of fatty acids, especially polysorbate 80, such as the product marketed by Croda under the name "TWEEN(registered trademark) 80"; sugars and C8-C 24Examples include ethers with aliphatic alcohols, such as caprylyl / capryl glucoside; hydrophobic polysaccharides; polyoxyethylene alkyl ethers; polyoxyethylene oxypropylene alkyl ethers; fatty acid alkanolamides; alkylamine oxides; alkyl polyglycosides; and polyglyceryl fatty acid esters, such as polyglyceryl-4 caprate, polyglyceryl-10 laurate, polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate, and polyglyceryl-6 polyricinoleate, as well as mixtures thereof.

[0161] In addition, as a nonionic surfactant, the following general formula (1): RO-(G) x (1) (In the formula, R represents a branched and / or unsaturated alkyl group containing 14 to 24 carbon atoms, G represents a reducing sugar containing 5 or 6 carbon atoms, x represents a value in the range of 1 to 10, preferably 1 to 4, and G specifically represents glucose, fructose, or galactose.) Alkyl polyglycosides represented by can be cited. Examples of this type of alkyl polyglycoside include alkyl polyglucosides (G = glucose in formula (I)), particularly compounds of formula (I), where R is more specifically an oleyl group (unsaturated C). 18 (group) or isostearyl group (saturated C) 18 Compounds in which the group is represented, G represents glucose, and x is a value in the range of 1 to 2, particularly isostearyl glucoside, oleyl glucoside, and mixtures thereof. These alkyl polyglucosides can be used as mixtures with coemulsifiers, more specifically as mixtures with aliphatic alcohols, particularly aliphatic alcohols having the same fatty chain as the alkyl polyglucoside, i.e., containing 14 to 24 carbon atoms and having branched and / or unsaturated chains (for example, isostearyl alcohol when the alkyl polyglucoside is isostearyl glucoside, and oleyl alcohol when the alkyl polyglucoside is oleyl glucoside).

[0162] The amount of surfactant in the composition according to the present invention may be 1% by mass or more, preferably 3% by mass or more, and more preferably 5% by mass or more, based on the total mass of the composition.

[0163] On the other hand, the amount of surfactant in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 7.5% by mass or less, based on the total mass of the composition.

[0164] The amount of surfactant in the composition according to the present invention may be in the range of 1% to 15% by mass, preferably 3% to 10% by mass, and more preferably 5% to 7.5% by mass, based on the total mass of the composition.

[0165] - Thickening agent The composition according to the present invention may contain at least one thickening agent. Two or more thickening agents may be combined. The thickening agents may be hydrophilic or lipophilic.

[0166] The thickener may be an ionic or nonionic, associative or asynchronous polymer. When used herein, the asynchronous thickener may be a polymeric thickener that does not contain C10-C30 fatty acid chains.

[0167] In this specification, the term "hydrophilic" refers to the properties of a room at room temperature (25°C) and atmospheric pressure (10°C). 5 This refers to a substance that is soluble in water at a concentration of 1% by mass or more, for example, 5% by mass or 10% by mass or more, relative to the total mass of water (Pa).

[0168] The hydrophilic thickener may be a natural or synthetic hydrophilic thickener. The hydrophilic thickener may be preferably selected from thickening polymers having sugar units, such as non-associative thickening polymers having sugar units.

[0169] For the purposes of this invention, the term "sugar unit" means an oxygen-containing hydrocarbon compound that includes several alcohol functional groups, has or does not have aldehyde or ketone functional groups, and contains at least four carbon atoms.

[0170] The sugar units may be optionally modified by substitution and / or oxidation and / or dehydration.

[0171] The sugar units that may be included in the hydrophilic thickening polymer composition of the present invention are preferably derived from the following sugars: glucose, galactose, arabinose, rhamnose, mannose, xylose, fucose, anhydrous galactose, galacturonic acid, glucuronic acid, mannuronic acid, galactose sulfate, anhydrous galactose sulfate, and fructose.

[0172] It is preferable that the thickening agent be selected from polysaccharides.

[0173] Examples of thickening polymers containing sugar units that can be specifically mentioned include natural gums such as the following: a) Infusions from trees or shrubs containing the following: - Gum arabic (branched polymer of galactose, arabinose, rhamnose, and glucuronic acid), - Gatchigum (polymer derived from arabinose, galactose, mannose, xylose, and glucuronic acid), - Karaya gum (polymer derived from galacturonic acid, galactose, rhamnose, and glucuronic acid), - Tragacanth gum (or tragacanth) (polymer of galacturonic acid, galactose, fucose, xylose and arabinose), b) Gums obtained from algae, including the following: - Agar (polymer derived from galactose and anhydrous galactose), - Alginate (polymer of mannuronic acid and glucuronic acid), - Carrageenan and furcereran (polymers of galactose sulfate and anhydrous galactose sulfate), c) Gum obtained from seeds or tubers, including the following: - Guar gum (polymer of mannose and galactose), - Locust bean gum (polymer of mannose and galactose), - Fenugreek seed gum (polymer of mannose and galactose), - Tamarind gum (polymer of galactose, xylose, and glucose), - Konjac gum (polymer of glucose and mannose), d) Microbial gums containing the following: - Xanthan gum (polymer of glucose, mannose acetate, mannose / pyruvic acid and glucuronic acid), - Gellan gum (polymer of partially acylated glucose, rhamnose, and glucuronic acid), - Scleroglucan gum (glucose polymer), e) Plant extracts containing the following: - Cellulose gum (glucose polymer), - Starch (glucose polymer) and - Inulin.

[0174] In one embodiment of the present invention, the hydrophilic gelling agent may be selected from glycosaminoglycans and their salts, and their derivatives, such as hyaluronic acid and its salts, and their derivatives, such as sodium hyaluronate and acetylated sodium hyaluronate, and mixtures thereof.

[0175] These polymers can be modified physically or chemically. Physical treatments include, in particular, temperature control. Preferably, thickening polymers containing sugar units are not treated chemically or physically.

[0176] Non-limiting examples of chemical treatments include esterification, etherification, amidation, and oxidation. These treatments can impart polymers that may be nonionic, anionic, or amphoteric, for example. For instance, these chemical or physical treatments can be applied to guar gum, carob gum, starch, and cellulose.

[0177] The lipophilic thickener may be in the form of a polymer or particles.

[0178] The lipophilic polymer thickener can be selected from carboxyvinyl polymers, such as Carbopol products (carbomer) and Pemulen products (acrylate / C10-C30 alkyl acrylate copolymer), or polymers having the INCI name "poly C10-30 alkyl acrylate," such as Air Products' Intelimer® product, such as product Intelimer® IPA 13-1 which is polystearyl acrylate, or product 30 Intelimer® IPA 13-6 which is a behenyl polymer.

[0179] The lipophilic thickener according to the present invention can be selected from the following: - Organically modified clay, particularly clay treated with compounds selected from quaternary and tertiary amines. Examples of organically modified clays include organically modified bentonite, for example, the product sold by Rheox under the name Bentone 34, and organically modified hectorite, for example, the products sold by Rheox under the names Bentone 27 and Bentone 38. In particular, modified clays such as modified magnesium silicate [Bentone gel® VS38 manufactured by Rheox], modified hectorites such as hectorite modified with C10-C22 fatty acid ammonium chloride, for example hectorite modified with distearyldimethylammonium chloride (disteardimonium hectorite), such as the product sold by Elementis under the name Bentone 38VCG, or by Rheox under the name Bentone 38CE, or by Elementis under the name Bentone Gel® V5 5V, or by Elementis under the name Bentone gel® ISD V. - and mixtures thereof.

[0180] Non-associative polymeric thickeners that do not contain sugar units and can be used as polymeric thickeners include, without limitation, cross-linked homopolymers or copolymers of acrylic acid or methacrylic acid, cross-linked homopolymers of 2-acrylamido-2-methyl-propanesulfonic acid and their cross-linked acrylamide copolymers, homopolymers of ammonium acrylate, or copolymers of ammonium acrylate and acrylamide, either alone or in mixtures.

[0181] The associative polymers that can be used according to the present invention are water-soluble polymers that can be reversibly combined with each other or with other molecules in an aqueous medium.

[0182] These chemical structures preferably include a hydrophilic zone and a hydrophobic zone, characterized by at least one fatty acid chain containing 10 to 30 carbon atoms.

[0183] The associative polymers that can be used in accordance with the present invention may be of anionic, cationic, amphoteric, or nonionic type, and may be, for example, polymers sold by Goodrich under the name Pemulen TR1 or TR2 (INCI: acrylate / C10-30 alkyl acrylate crosspolymer), by Ciba under the name Salcare SC90, by Rohm & Haas under the names Aculyn 22, 28, 33, 44, or 46, and by Akzo under the names Elfacos T210 and T212.

[0184] In one preferred embodiment, the composition according to the present invention comprises a combination of at least one hydrophilic thickener and at least one lipophilic thickener.

[0185] The total amount of the thickening agent in the composition according to the present invention may be 0.05% by mass or more, preferably 0.1% by mass or more, and more preferably 0.4% by mass or more, based on the total mass of the composition.

[0186] The total amount of the thickening agent in the composition according to the present invention may be 10% by mass or less, preferably 5% by mass or less, and more preferably 3% by mass or less, based on the total mass of the composition.

[0187] The total amount of the thickening agent in the composition according to the present invention may be in the range of 0.05% to 10% by mass, preferably 0.1% to 5% by mass, and more preferably 0.4% to 3% by mass, based on the total mass of the composition.

[0188] - Filler The composition according to the present invention may include (a) at least one filler other than an organic spherical filler, and (b) a pigment coated with at least one glycerol fatty acid ester. Two or more fillers may be combined.

[0189] The additional filler may be inorganic or organic, and is preferably inorganic.

[0190] The term “filler” should be understood herein to mean any mineral or synthetic particle of any shape that is insoluble in the medium of the composition, regardless of the temperature at which the composition is manufactured.

[0191] The average particle size of the filler is not limited, but may be in the range of 0.3 μm to 100 μm, preferably 0.5 μm to 50 μm or less, and more preferably 1 μm to 20 μm. The term "average particle size," as used herein, refers to the number-average particle diameter given by the statistical particle size distribution for half of the population, and is denoted as D50. For example, the number-average particle diameter can be measured with a laser diffraction particle size distribution analyzer, such as the Mastersizer 2000 from Malvern Corp.

[0192] The filler material may be of any shape, regardless of its crystalline form (e.g., layered, cubic, hexagonal, orthorhombic, etc.), and may be platelet-shaped, spherical, or oblong.

[0193] The filler may be an inorganic or organic powder, and may or may not have a surface coating.

[0194] Examples of inorganic fillers include talc, mica, silica, hollow silica, silylated silica, magnesium aluminum silicate, titanium dioxide, kaolin, bentonite, calcium carbonate, magnesium bicarbonate, hydroxyapatite, boron nitride, fluorophlogopite, sericite, calcined talc, calcined mica, calcined sericite, synthetic mica, perlite, lauroyl lysine, metal soap, bismuth oxychloride, barium sulfate, magnesium sulfate, magnesium carbonate, and mixtures thereof, which are optionally treated to be hydrophilic or hydrophobic.

[0195] The amount of filler in the composition according to the present invention may be 0.1% to 10% by mass, preferably 0.5% to 5% by mass, and more preferably 1% to 3% by mass, based on the total mass of the composition.

[0196] - Beauty active ingredients The composition according to the present invention may contain at least one cosmetic active ingredient.

[0197] In the object of the present invention, the term "cosmetic active ingredient" as used herein means an activator for keratinic substances such as skin. Examples of active ingredients include moisturizers, decolorizing agents, desquamating agents, anti-aging agents, whitening agents, mattifying agents, cicatrizing agents, blood circulation promoting agents, antibacterial agents, antioxidants, radical scavengers, and mixtures thereof.

[0198] In one embodiment of the present invention, the beauty-enhancing active ingredient is selected from vitamin B3.

[0199] Vitamin B3, also known as vitamin PP, is expressed by the following formula:

[0200] [ka]

[0201] [In the formula, R may be -CONH2 (niacinamide), -COOH (nicotinic acid or niacin), or CH2OH (nicotinyl alcohol), -CO-NH-CH2-COOH (nicotinuric acid), or -CO-NH-OH (nicotinylhydroxamic acid)] It is a compound of [substance name]. Niacinamide is preferred.

[0202] Examples of vitamin B3 derivatives include nicotinic acid esters such as tocopherol nicotinate, amides derived from niacinamide by substitution of the -CONH2 hydrogen group, products from the reaction of carboxylic acids and amino acids, and esters of nicotinyl alcohol with carboxylic acids such as acetic acid, salicylic acid, glycolic acid, or palmitic acid.

[0203] The amount of the cosmetic active ingredient in the composition according to the present invention may be 0.1% to 20% by mass, preferably 0.5% to 15% by mass, and more preferably 1% to 10% by mass, based on the total mass of the composition.

[0204] - Supplement The compositions according to the present invention may contain, or may not contain, any auxiliary agents typically used in cosmetics, such as organic solvents acceptable for cosmetics, anionic, nonionic, cationic, amphoteric, or zwitterionic polymers, or mixtures thereof, natural extracts of animal or plant origin, dyes, fragrances, antioxidants, pH adjusters, preservatives, and opacifiers, to the extent that they do not impair the effects of the present invention.

[0205] The total amount of the auxiliary agent in the composition according to the present invention may be in the range of 0.01% to 30% by mass, preferably 0.1% to 20% by mass, and more preferably 0.5% to 10% by mass, relative to the total mass of the composition.

[0206] The compositions according to the present invention do not necessarily contain large amounts of silicone. The term "silicone" is intended to mean any compound formed from a silicon-oxygen chain-Si-O-Si-O-Si-O in which an organic group is bonded to a silicon atom. For the purposes of the present invention, the term "silicone" as used herein may include silicone oil, silicone polymer, silicone surfactant, silicone powder, and the like.

[0207] The silicone content in the composition may be less than 15% by mass, preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, preferably 0.5% by mass or less, and particularly less than 0.1% by mass, based on the total mass of the composition. In one preferred embodiment, the composition is silicone-free or substantially silicone-free. Therefore, the composition according to the present invention may be a silicone-free composition.

[0208] The compositions according to the present invention can be prepared by mixing the above-mentioned essential components and optional components according to any method well known to those skilled in the art.

[0209] According to a preferred embodiment, the composition according to the present invention is, with respect to the total mass of the composition, (a) At least one organic spherical filler selected from cellulose-based polymer powders in an amount of 0.1% to 10% by mass, (b) At least one pigment coated with at least one fatty acid ester, selected from pigments coated with at least one fatty acid ester of aliphatic alcohol, polyol, or sugar, in an amount of 5% to 25% by mass Includes.

[0210] According to a preferred embodiment, the composition according to the present invention is, with respect to the total mass of the composition, (a) At least one organic spherical filler selected from cellulose ether, cellulose ester, and cellulose ester ether, particularly cellulose ester powder, in an amount of 1% to 8% by mass, (b) 10% to 15% by mass of at least one pigment coated with at least one fatty acid ester, selected from pigments coated with polyglyceryl fatty acid esters Includes.

[0211] [method] The present invention also relates to a cosmetic method for keratinous substances, comprising the step of applying a composition according to the present invention onto a keratinous substance.

[0212] The cosmetic method according to the present invention may be a non-therapeutic method.

[0213] The cosmetic method according to the present invention may be for the treatment and / or care of keratinous substances such as skin, hair, scalp, nails, and lips, preferably skin.

[0214] Other technical features and optional components described in the composition can be applied to the method according to the present invention. [Examples]

[0215] The present invention will be described in more detail by reference to examples. However, these examples should not be construed as limiting the scope of the present invention. The following examples are presented as non-limiting illustrations in the art of the present invention.

[0216] [Composition] The W / O compositions for Examples 1-5 (Ex.1-Ex.5) and Comparative Examples 1-4 (Comp.Ex.1-Comp.Ex.4) were prepared according to the following protocols. The components are listed in Table 1 and Table 2. First, the oily phase was prepared by mixing the components listed in A1 at 55°C. Next, the components listed in A2 were added to the mixture and mixed using a homomixer at 3,000 rpm for 10 minutes. Then, the powders listed in B were added and mixed at 3,000 rpm for 8 minutes, followed by the addition of the aqueous phase containing the components listed in C, and mixed at 55°C at 3,500 rpm for 5 minutes. The mixture was then cooled to 30°C. Finally, the pigments listed in D were added and dispersed at room temperature at 2,500 rpm for 5 minutes to prepare the W / O emulsion composition. All numerical values ​​regarding the amount of components are based on the "mass%" of the active raw materials.

[0217] [evaluation] (Coverage) 20 mg of each composition was evenly applied by finger to a black and white bioskin (circular, 55 mm in size, normal & 20-year-old skin type, 5 T mm). After drying for 2 hours, the L* value was measured from each bioskin using a calorimeter (Konica Minolta CM-3600d, SCI mode), and the contrast ratio was calculated using the following formula.

[0218]

number

[0219] The average contrast ratio was calculated and ranked according to the following criteria. Excellent: Contrast ratio ≥ 35 Good: 30 < Contrast ratio ≤ 35 Normal: 25 < Contrast ratio ≤ 30 Defective: Contrast ratio ≤ 25

[0220] (Smoothness) Each composition was applied to the faces of the five panelists themselves, and their smoothness was evaluated. The panelists rated the smoothness on a scale of 1 (poor) to 5 (excellent). The average score was calculated and the compositions were ranked according to the following criteria. Excellent: 4.5<average≦5 Excellent: 4 < Average ≤ 4.5 Good: 3<average≦4 Normal: 2<average≦3 Defective: 1<average≦2

[0221] (Spreadability) Each composition was applied to the faces of the five panelists themselves, and its spreadability was evaluated. The panelists rated the spreadability on a scale of 1 (poor) to 5 (excellent). The average score was calculated and the compositions were ranked according to the following criteria. Excellent: 4.5<average≦5 Excellent: 4 < Average ≤ 4.5 Good: 3<average≦4 Normal: 2<average≦3 Defective: 1<average≦2

[0222] (Stability) Each composition was left at 45°C for up to two months. The stability was evaluated from the visually observable changes in appearance, particularly the separation between the aqueous and oily phases, and color non-uniformity. The criteria were as follows. Excellent: After two months, neither separation nor color non-uniformity was observed Very Good: After two months, color non-uniformity was not observed, but some separation of the oily phase was observed Good: After two months, some separation of the oily phase was observed along with some color non-uniformity Fair: Color non-uniformity was not observed, but some separation of the oily phase was observed even after one month Poor: Separation of the oily phase and color non-uniformity were observed before one month had passed

[0223] The results are shown in Table 1 and Table 2.

[0224] [Table 1]

[0225] [Table 2]

[0226] As shown in Table 1 and Table 2, the W / O compositions according to the present invention containing the combination of component (a) and component (b) exhibited improved cosmetic properties such as improved spreadability, coating property, smoothness, and stability.

[0227] On the other hand, the W / O compositions according to Comparative Examples 1 and 2, which did not contain a pigment coated with at least one glycerol fatty acid ester, could not exhibit improved smoothness and stability. Further, the compositions according to Comparative Examples 3 and 4, which did not contain an organic spherical filler, could not exhibit improved smoothness and / or spreadability.

[0228] Accordingly, it can be concluded that the W / O composition according to the present invention is highly suitable as a cosmetic, particularly a topical cosmetic for the skin, because it can exhibit improved spreadability, coverage, smoothness, and stability. In addition, the composition according to the present invention is highly environmentally friendly because it uses many renewable raw materials and / or materials with a good index of naturalness and / or materials of natural origin.

Claims

1. (a) at least one type of organic spherical filler, (b) at least one pigment coated with at least one fatty acid ester and A W / O composition containing the following.

2. (a) The composition according to claim 1, wherein the organic spherical filler is selected from a cellulose polymer powder.

3. (a) The composition according to claim 1 or 2, wherein the organic spherical filler is selected from cellulose ethers, cellulose esters, and cellulose ester ethers, particularly powders of cellulose esters.

4. (b) The composition according to any one of claims 1 to 3, wherein the pigment is an inorganic pigment.

5. (b) The composition according to any one of claims 1 to 4, wherein the pigment coated with at least one fatty acid ester is selected from pigments coated with at least one fatty acid ester of an aliphatic alcohol, a polyol, or a sugar.

6. (b) The composition according to any one of claims 1 to 5, wherein the pigment coated with at least one fatty acid ester is selected from pigments coated with polyglyceryl fatty acid esters.

7. The composition according to any one of claims 1 to 6, wherein the polyglyceryl fatty acid ester has an HLB value of less than 8.

0.

8. The composition according to any one of claims 1 to 7, wherein the amount of (a) organic spherical filler in the composition is in the range of 0.1% to 10% by mass, preferably 0.25% to 5% by mass, and more preferably 0.5% to 3% by mass, based on the total mass of the composition.

9. The composition according to any one of claims 1 to 8, wherein the amount of (b) a pigment coated with at least one fatty acid ester in the composition is in the range of 5% to 25% by mass, preferably 7.5% to 20% by mass, and more preferably 10% to 15% by mass, based on the total mass of the composition.

10. The composition according to any one of claims 1 to 9, further comprising at least one oil, preferably at least one ester oil.

11. Oil, Carbonate C 12 ~C 22 The composition according to claim 10, selected from dialkyl groups, monoesters of monoacids and monoalcohols, and hydrocarbon oils.

12. The composition according to claim 10 or 11, wherein the amount of oil in the composition is in the range of 5% to 50% by mass, preferably 10% to 40% by mass, and more preferably 15% to 30% by mass, based on the total mass of the composition.

13. The composition according to any one of claims 1 to 13, wherein the silicone content in the composition is less than 15% by mass, preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, preferably 0.5% by mass or less, particularly less than 0.1% by mass, based on the total mass of the composition, or the composition does not contain silicone or is substantially silicone-free.

14. A composition according to any one of claims 1 to 12 for treating and / or caring for keratinous substances such as skin.

15. A method for treating and / or caring for a keratinous substance, comprising the step of applying a composition according to any one of claims 1 to 14 to the keratinous substance.

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