Oil-based eyelash cosmetic

Abstract

The present invention aims to develop an eyelash cosmetic that is comfortable to apply, has excellent adhesion, provides a high separating effect, and is also resistant to smudging over time. [Solution] An oily eyelash cosmetic containing the following ingredients (A) to (D). (A) A polyorganosiloxane having a block structure, characterized by being represented by a specific formula, having a weight-average molecular weight of 500,000 or more, and being a solid at room temperature in the absence of solvent with a softening point of 50°C or higher. (B) Oil-soluble resins that are solid at 25°C, excluding silicone-based resins. (C) Oil-based gelling agent (D) Volatile oils

Description

[Technical Field]

[0001] This invention relates to an oil-based cosmetic composition for eyelashes. [Background technology]

[0002] There are two types of eyelash makeup: film-type (oil-in-water) that can be easily removed with warm water, and waterproof-type (oil-based) that offers excellent staying power against sweat and water. Oil-based types, in particular, are popular globally because they provide excellent volume-enhancing and curl-holding effects, which are the basic functions of eyelash makeup. In addition, in recent years, there has been an increasing demand for a variety of functional effects, such as a separating effect that makes each eyelash appear larger by neatly separating them, and the ability to avoid feeling burdened or smudging over time.

[0003] To achieve these functions, technological developments include, for example, a technique for eyelash cosmetics containing a konpeito-shaped silicone resin powder, a volatile oil, and an oily gelling agent that gives eyelashes volume without impairing the original color of the cosmetic base (see Patent Document 1), and an oily cosmetic that combines dextrin fatty acid ester, a specific sucrose fatty acid ester, and an oil that is solid at 30°C, resulting in a cosmetic with excellent high-temperature stability, a high gloss coating after solvent evaporation, and, when a colorant is added, excellent color development of the colorant (see Patent Document 2). [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2009-149525 [Patent Document 2] Japanese Patent Publication No. 2006-306829 [Disclosure of the Invention] [Problems that the invention aims to solve]

[0005] However, while the technology described in Patent Document 1 offers excellent volume, the stickiness during application can cause the upper and lower eyelashes to stick together, resulting in a feeling of burden and reduced separation. Furthermore, while the technology described in Patent Document 2 offers excellent gloss, color development, volume, and curling effects, there was room for improvement regarding its resistance to smudging over time. Therefore, the objective of the present invention is to provide an oil-based eyelash cosmetic that does not feel burdensome when applied, has excellent adhesion, a high separating effect, and is also excellent in preventing smudging over time. [Means for solving the problem]

[0006] As a result of diligent research, the inventors focused on the film properties formed by a polyorganosiloxane of a specific structure, a specific oil-soluble resin, and a volatile oil agent, and found that the above problems could be solved by adding other components to create an oily eyelash cosmetic, thus completing the present invention.

[0007] In other words, the present invention provides the following aspects. [1] An oily eyelash cosmetic containing the following ingredients (A) to (D). (A) A polyorganosiloxane having a block structure, characterized by being represented by the following general formula (1), having a weight-average molecular weight of 500,000 or more, and being a solid at room temperature in the absence of solvent with a softening point of 50°C or higher. [ka] (In the formula, R 1 , R 2 , R 3 , R 4 , R 5is a hydrogen atom or a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, m represents the repeating number of the diorganosiloxy unit, 50 ≧ m ≧ 0, a, b, c, d, e represent the existing molar ratios of the respective siloxane units, 0.3 ≧ a ≧ 0, 0.3 ≧ b > 0, 0.5 ≧ c ≧ 0, 0.95 ≧ d > 0.5, 0.3 ≧ e ≧ 0, a + b×(2 + m) + c + d + e = 1, x, y are the numbers of hydroxy groups or alkoxy groups bonded to 1 mole of Si atoms of the siloxane units of a to e above, and 0.1 ≧ x > 0, 0.1 ≧ y > 0 are represented.) (B) A polar resin which is solid at 25°C excluding silicone resins (C) An oily gelling agent (D) A volatile oil agent [2] Furthermore, the oily eyelash cosmetic according to [1] above, which contains a component (E) pigment [3] The oily eyelash cosmetic according to [1] or [2] above, wherein the component (B) is one or more selected from pentaerythrityl hydrogenated rosinate, dextrin isostearate, and glyceryl hydrogenated abietate [4] The oily eyelash cosmetic according to [1] or [2] above, wherein the component (C) is one or more selected from fumed silica, organically modified clay minerals, and waxes [5] The oily eyelash cosmetic according to [1] or [2] above, wherein the component (D) contains a hydrocarbon oil

Advantages of the Invention

[0008] According to the present invention, it is possible to provide an oily eyelash cosmetic which has no burden during application, exhibits a separation effect while having excellent adhesion, and forms a makeup film without bleeding over time. Further, the oily eyelash cosmetic of the present invention can be applied as items such as an eyelash essence, a mascara base, and a mascara containing a pigment

Embodiments for Carrying Out the Invention

[0009] The details of the present invention will be described below. In this specification, "~" means a range including the numerical values before and after it

[0010] [Component (A)] Component (A) used in the present invention is a novel film-forming resin, which is represented by the following formula (1), has a weight average molecular weight of 500,000 or more, has a solid property at room temperature in a solvent-free state, and has a softening point of 50 ° C or more, and is a polyorganosiloxane having a block structure (hereinafter, also referred to as "polyorganosiloxane having a block structure").

[0011] [Chemical formula]

[0012] In the formula, R 1 , R 2 , R 3 , R 4 , R 5 is a hydrogen atom or a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, m represents the repeating number of diorganosiloxy units, 50 ≥ m ≥ 0, a, b, c, d, e represent the existing molar ratios of the respective siloxane units, 0.3 ≥ a ≥ 0, 0.3 ≥ b > 0, 0.5 ≥ c ≥ 0, 0.95 ≥ d > 0.5, 0.3 ≥ e ≥ 0, a + b×(2 + m) + c + d + e = 1, x, y are the numbers of hydroxy groups or alkoxy groups bonded to 1 mole of Si atoms of the siloxane units of a to e above, and represent 0.1 ≥ x > 0, 0.1 ≥ y > 0.

[0013] R 1 , R 2 , R 3 , R 4 , R 5Each of these is a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms, which may independently have a hydrogen atom or a substituent, and preferably a saturated or unsaturated hydrocarbon group having 1 to 10 carbon atoms. Specific examples include methyl group, chloromethyl group, methoxymethyl group, ethyl group, ethoxyethyl group, vinyl group, propyl group, (meth)acryloxypropyl group, mercaptopropyl group, chloropropyl group, glycidyloxypropyl group, epoxycyclohexylethyl group, allyl group, butyl group, pentyl group, cyclopentyl group, hexyl group, hexenyl group, cyclohexyl group, phenyl group, heptyl group, octyl group, octylenyl group, (meth)acryloxyoctyl group, mercaptooctyl group, chloroctyl group, glycidyloxyoctyl group, decyl group, etc., but among these, R 1 , R 2 , R 3 , R 4 For this, methyl groups, ethyl groups, propyl groups, and phenyl groups are preferred, methyl groups and ethyl groups are more preferred, and methyl groups are even more preferred. 5 For this group, saturated hydrocarbon groups having 1 to 4 carbon atoms are preferred, with examples including methyl, ethyl, n-propyl, i-propyl, n-butyl, s-butyl, i-butyl, and t-butyl groups, and more preferably n-butyl, s-butyl, and i-butyl groups.

[0014] a, b, c, d, and e represent the molar ratios of each siloxane unit, with 0.3≧a≧0, 0.3≧b>0, 0.5≧c≧0, 0.95≧d>0.5, 0.3≧e≧0, and a+b×(2+m)+c+d+e=1. x and y represent the number of hydroxyl groups or alkoxy groups bonded to 1 mole of Si atoms in the siloxane units a-e, with 0.1≧x>0 and 0.1≧y>0.

[0015] Regarding the hydroxyl or alkoxy groups bonded to the Si atoms of a polydiorganosiloxane having a block structure, it is preferable from the viewpoint of polymer stability that x and y are 0.05≧x>0 and 0.05≧y>0, respectively. When x=y=0, it means that there are no structural groups that undergo dehydration, dealcoholization, condensation, and crosslinking. Although the polymer stability is excellent, it becomes a component that does not cure, which is undesirable as it reduces the durability of the coating film. On the other hand, when x or y is greater than 0.1, while the aforementioned curability is excellent, there is a high possibility that the polymer stability will decrease, and in particular when x>0.1, the stability will be low, which is undesirable.

[0016] Regarding the ratio of siloxane units in the polydiorganosiloxane having the block structure of the present invention, from the viewpoint of polymer stability, high degree of polymerization, and film flexibility, it is preferable that 40>m>10, 0.1≧a>0, 0.3≧b>0, 0.3≧c>0, and 0.05≧e≧0. Furthermore, in addition to the above, it is even more preferable that 0.9≧d>0.7.

[0017] The polydiorganosiloxane having a block structure has a weight-average molecular weight of 500,000 or more, preferably 1,000,000 or more, and more preferably 2,000,000 or more, from the viewpoint of film-forming properties, film continuity, and lack of stickiness of the coating film. There is no particular upper limit to the weight-average molecular weight, but from the viewpoint of suppressing gelation, for example, a weight-average molecular weight of 16,000,000 or less is preferred, more preferably 10,000,000 or less, and still preferred to be 8,000,000 or less. As a range that balances the performance of the coating film and the stability of the siloxane polymer, 500,000 to 16,000,000 is preferred, 1,000,000 to 10,000,000 is more preferred, and still preferred to be 2,000,000 to 8,000,000.

[0018] The weight-average molecular weight in this invention is a value obtained by converting a polystyrene with a known molecular weight into a standard substance using gel permeation chromatography (GPC) measured under the conditions shown below. [Measurement conditions] Flow rate: 0.5mL / min Detector: Differential refractive index detector (RI) Columns: Use two of the following columns directly connected together. TSKgel GMHHR-H(30) (7.8mm I.D. × 30cm × 1) (Manufactured by Tosoh Corporation) Column temperature: 40℃ Sample injection volume: 200 μL (THF solution with a concentration of 20 g / L)

[0019] Polydiorganosiloxanes with a block structure are preferably introduced with a linear polydiorganosiloxane structure from the viewpoint of non-stickiness of the coating film and film flexibility. As an indicator of the state in which such a structure is introduced while being maintained 29 One method is signal analysis by Si-NMR, specifically, it is possible to distinguish by detecting signals attributed to polydiorganosiloxanes that fall within a predetermined range of chemical shifts. Generally, they are detected in the range of -10 to -50 ppm, but the polydiorganosiloxanes having a block structure contained in the cosmetic composition of the present invention are 29 The Si-NMR spectrum is characterized by the detection of a chemical shift of the signal attributed to the diorganosiloxane unit in the range of -15 to -25 ppm, and the detection width of the signal peak (the difference between the chemical shift at the detection start point and the chemical shift at the detection end point) being 3 to 7 ppm. The narrower the detection width of the signal peak, the more it indicates that the linear siloxane structure is maintained while being introduced into the polymer. If the detection width is greater than 10 ppm, it means that the linear structure is practically absent from the polymer, making it difficult to obtain the desired coating properties. In the present invention, 29 Si-NMR was performed using a 300MHz-NMR spectrometer manufactured by JEOL Ltd., and a solution sample with a sample concentration of 20 wt% was measured under conditions of 25°C.

[0020] The composition obtained by dissolving the block structure polyorganosiloxane of the present invention in an organic solvent is characterized by the extract water having an acidic pH of 3.5 to 6. Generally, it is known that the pH of the extract water obtained by dissolving polyorganosiloxane in an organic solvent is neutral unless the solvent itself is acidic or basic. By controlling the pH within the aforementioned range, it is possible to obtain a stable solution without causing gelation or other problems over a long period of time, even with high molecular weight polyorganosiloxanes like those of the present invention. Methods for controlling the extract water pH include the use of acids and buffers, but preferably, an acid is used, and more preferably, an organic carboxylic acid is used.

[0021] Examples of acids include inorganic acids such as hydrochloric acid, nitric acid, and sulfuric acid, as well as organic carboxylic acids such as formic acid, acetic acid, propionic acid, citric acid, succinic acid, maleic acid, methanesulfonic acid, and trifluoromethanesulfonic acid, but are not limited to those exemplified here.

[0022] In compositions in which the polyorganosiloxane having the block structure of the present invention is dissolved in an organic solvent, it is preferable that the organic solvent is not an aromatic hydrocarbon. This is because aromatic hydrocarbons, such as benzene, toluene, and xylene, are organic solvents with a high environmental impact.

[0023] The polyorganosiloxane having a block structure contained in the cosmetic composition of the present invention can be produced, for example, by the following steps 1 to 3. Step 1: Silane monomers capable of constituting the siloxane unit of formula (1) above, having a chlorosilyl group or an alkoxysilyl group having 1-2 carbon atoms as a hydrolyzable group, and polydiorgannosiloxanes having hydrolyzable silyl groups at both ends are added dropwise to a mixed medium layer consisting of water, a hydrophilic organic solvent with a water solubility of 50-1000 g / L at 25°C, and a hydrophobic organic solvent with a water solubility of 1 g / L or less at 25°C, and undergo hydrolysis and condensation. Step 2: After removing the generated hydrogen chloride and alcohol, condensation polymerization is carried out under strongly acidic conditions with a pH of 3 or less until the weight-average molecular weight reaches 500,000 or more. Step 3: Neutralize or remove the acid and adjust the pH of the extracted water to 3.5-6.

[0024] Examples of hydrophilic organic solvents with a water solubility of 50 to 1000 g / L at 25°C include alcohols, ketones, esters, and ether compounds. Specifically, examples include n-propanol, isopropanol, n-butanol, secondary butanol, isobutanol, tertiary butanol, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, ethyl acetate, butyl acetate, methyl ethyl ketone, and cyclohexanone. Among these, n-propanol, isopropanol, n-butanol, and isobutanol are preferred from the viewpoint of controlling the reaction during hydrolysis condensation and suppressing the formation of insoluble substances.

[0025] Examples of hydrophobic organic solvents with a water solubility of 1 g / L or less at 25°C include aliphatic hydrocarbon solvents such as hexane, heptane, octane, cyclohexane, methylcyclohexane, ethylcyclohexane, decane, isododecane, and isoparaffin compounds derived from olefin gases, as well as aromatic hydrocarbon solvents such as toluene and xylene. Among these, hexane, heptane, octane, cyclohexane, methylcyclohexane, and ethylcyclohexane are preferred from the viewpoint of reaction control during hydrolysis condensation, maintenance of block structure, and solubility of the resulting resin, and hexane, heptane, and ethylcyclohexane are more preferred.

[0026] The preferred weight ratio of a mixed medium consisting of water, a hydrophilic organic solvent with a water solubility of 50 to 1000 g / L at 25°C, and a hydrophobic organic solvent with a water solubility of 1 g / L or less at 25°C is 10 to 30 parts hydrophilic organic solvent and 10 to 30 parts hydrophobic organic solvent, with water being 100 parts. Exceeding this upper limit will reduce productivity because it will require using more organic solvent than necessary. On the other hand, if it falls below this lower limit, it will be difficult to control the reaction during hydrolysis condensation, and solvent-insoluble substances will be generated.

[0027] As the silane and siloxane materials to be hydrolyzed and condensed, it is preferable to use silane monomers that can constitute the siloxane unit of formula (1) having a chlorosilyl group or an alkoxysilyl group having 1 to 2 carbon atoms as a hydrolyzable group, and polydiorganosiloxanes having hydrolyzable silyl groups at both ends. In particular, for polydiorganosiloxanes having hydrolyzable silyl groups at both ends, α,ω-dimethylchlorosiloxypolydimethylsiloxane, shown in formula (2) below, is preferred from the viewpoint of reactivity during hydrolysis. Furthermore, regarding the silane monomer, it is more preferable from the viewpoint of reaction control and production efficiency that the compound has only a chlorosilyl group as a hydrolyzable group.

[0028] [ka] (In the equation, 50 ≥ m ≥ 0.)

[0029] During the hydrolysis condensation reaction, the weight concentration of the reactive silane and siloxane material is preferably 10-30% by weight relative to the total amount of the mixed medium including water and the reactive silane and siloxane material. Exceeding this upper limit makes it difficult to control the reaction during hydrolysis condensation, and solvent-insoluble substances are generated. On the other hand, below this lower limit is undesirable because it requires the use of more organic solvent than necessary, resulting in reduced productivity.

[0030] The temperature during the hydrolysis condensation reaction is preferably between 0 and 40°C. If the temperature is higher than 40°C, it becomes difficult to control the reaction during hydrolysis condensation, and there is a risk of generating solvent-insoluble substances. If the temperature is below 0°C, the aforementioned reaction control effect becomes excessive, and it becomes inefficient in terms of the cooling energy required for temperature control.

[0031] In a method for producing polyorganosiloxanes having a block structure, after removing the generated hydrogen chloride and alcohol, condensation polymerization is carried out under strongly acidic conditions with a pH of 3 or less until the weight-average molecular weight reaches 500,000 or more. From the viewpoint of reaction control, the reaction temperature is preferably in the range of 10 to 80°C. Furthermore, from the viewpoint of reaction control, the pH is preferably in the range of 1 to 3. If the reaction temperature is higher than the upper limit of the range and the pH is lower than the lower limit of the range, the condensation polymerization proceeds excessively quickly and becomes difficult to control. On the other hand, if the reaction temperature is lower than the lower limit of the range and the pH is higher than the upper limit, the polymerization rate decreases significantly, and productivity deteriorates.

[0032] The content of component (A) in the present invention is not particularly limited. As a lower limit, from the viewpoint of not bleeding, it is preferably 1% by mass (hereinafter simply abbreviated as %) or more, more preferably 5% or more, and even more preferably 10% or more, as solid content relative to the total amount of oily eyelash cosmetic. As an upper limit, from the viewpoint of not feeling burdensome, it is preferably 30% or less, more preferably 25% or less, and even more preferably 20% or less. As a range, it is preferably 1 to 30%, more preferably 5 to 25%, and even more preferably 10 to 20%. Within this range, the oily eyelash cosmetic is more preferable because it does not feel burdensome when applied, has excellent adhesion, high separating effect, and excellent resistance to bleeding over time.

[0033] [Component (B)] Component (B) used in the present invention is an oil-soluble resin that is solid at 25°C, excluding silicone-based resins, and together with component (A) forms a film as an oily eyelash cosmetic. However, because it does not have a silicone structure, its compatibility with component (A) during film formation can be controlled. In the present invention, "solid" means a substance that does not deform and does not exhibit fluidity in an environment without load at 1 atmosphere and 25°C. Component (B) is not particularly limited as long as it is commonly used in cosmetics, and examples include rosin-modified phenolic resins, rosin acid-based resins such as hydrogenated pentaerythrityl rosinate, abietic acid-based resins such as dextrin isostearate and hydrogenated glyceryl abieticate, candelilla resin, polyvinyl isobutyl ether, and polyvinyl-based resins such as eicosene / VP copolymer. One or more of these can be used, but from the viewpoint of adhesion and separating effect, it is preferable to use hydrogenated pentaerythrityl rosinate, dextrin isostearate, and hydrogenated glyceryl abieticate. Examples of commercially available products include Ester Gum HP (manufactured by Arakawa Chemical Industries, Ltd.), which contains hydrogenated pentaerythrityl rosinate; Unifilma HVY (manufactured by Chiba Flour Milling Co., Ltd.), which contains dextrin isostearate; Pine Crystal KE-311 (manufactured by Arakawa Chemical Industries, Ltd.), which contains hydrogenated glyceryl abietate; TOWAX-1B4 (manufactured by Toa Chemical Co., Ltd.), which contains carnauba wax extract; Candelilla Resin E-1 (manufactured by Nippon Natural Products Co., Ltd.), which contains candelilla wax extract; and ANTARON V-220F (manufactured by Ashland Japan Inc.), which contains eicosene / vinylpyrrolidone copolymer.

[0034] The content of component (B) in the present invention is not particularly limited. As a lower limit, from the viewpoint of good adhesion, it is preferably 0.5% or more, more preferably 1% or more, and even more preferably 3% or more, relative to the total amount of the oily eyelash cosmetic. As an upper limit, from the viewpoint of no smudging, it is preferably 20% or less, more preferably 15% or less, and even more preferably 10% or less. As a range, it is preferably 0.5 to 20%, more preferably 1 to 15%, and even more preferably 3 to 10%. Within this range, the oily eyelash cosmetic is more preferable because it does not feel burdensome when applied, has excellent adhesion, high separating effect, and excellent resistance to smudging over time.

[0035] In the present invention, the mass ratio (A) / (B) of component (A) to component (B) is not particularly limited, but from the viewpoint of usability as an oily eyelash cosmetic, it is 0.1 to 20, preferably 0.2 to 18, and more preferably 0.3 to 15. When forming a cosmetic film, component (A) and component (B) separate microscopically, but the cosmetic film is completed when component (A) covers the surface of the film made by component (B), which has higher adhesion to the eyelashes. Therefore, if the mass ratio (A) / (B) of component (A) to component (B) is within this range, there will be no stickiness when applied, and the absence of bleeding, lack of burden, good adhesion, and separation effect will be more easily perceived.

[0036] [Component (C)] The component (C) oily gelling agent used in the present invention forms a gel structure with oily components commonly used in cosmetics and adjusts the viscosity of the oil phase through its thickening effect. Component (C) is not particularly limited as long as it is commonly used in cosmetics and can solidify or gel oily components, and examples include fuzzy silica such as dimethylsilylated silica, organically modified clay minerals such as stearalkonium hectorite and disteardimonium hectorite, waxes such as hydrocarbon waxes and silicone waxes, polysaccharide fatty acid esters such as dextrin fatty acid esters, sucrose fatty acid esters and inulin fatty acid esters, 12-hydroxystearic acid, fatty acids or salts thereof, fatty acid glycerin esters such as (behenate / eicosanedioic acid) glyceryl, cross-linked silicone polymers such as (dimethicone / vinyl dimethicone) crosspolymer, (vinyl dimethicone / alkyl dimethicone) crosspolymer, and (dimethicone / phenylvinyl dimethicone) crosspolymer, amino acid-based gelling agents such as dibutyl lauroyl glutamide and dibutyl ethylhexanoyl glutamide, and oil-soluble polyurethanes. One or more of these can be used, but from the viewpoint of good adhesion and separation effect, it is preferable to use fuzzy silica, organically modified clay minerals, and wax.

[0037] Atomized silica is a fine amorphous silica, such as that obtained by hydrolyzing silicon tetrachloride in a hydrogen and oxygen flame. Any type commonly used in cosmetics can be used. Furthermore, atomized silica may be hydrophobized before use. While there are no particular limitations on the hydrophobization method, examples include trimethylsiloxy treatment with trimethylsilyl chloride or hexamethyldisilazane, octylsilanization treatment, coating and baking treatment with methylhydrogenpolysiloxane, and coating with metal soaps. Commercially available models include AEROSIL 90, AEROSIL 130, AEROSIL 200, AEROSIL 200F, AEROSIL 300, AEROSIL 380, AEROSIL R972, AEROSIL R974, AEROSIL R976S, AEROSIL RX200, AEROSIL R202, AEROSIL R805, AEROSIL R812, AEROSIL RA200H (all manufactured by Nippon Aerosil), Taranox 500 (manufactured by Talco), and Cabotsil TS-530 (manufactured by Cabot).

[0038] Organically modified clay minerals are obtained by ion exchange of water-swellable clay minerals with cationic surfactants such as alkyl quaternary ammonium salts. In the present invention, those exchanged with benzyldimethylstearylammonium ions and those exchanged with dimethyldistearylammonium ions are particularly preferred. The water-swellable clay mineral is a type of colloidal hydrated aluminum silicate having a three-layer structure, and is generally given the following formula (X, Y) 23 (Si,Al)4O 10 (OH)2Z·nH2O However, X = Al, Fe, Mn, Cr Y=Mg,Fe,Ni,Zn,Li Z = K, Na, Ca Represented by the formula above, examples include natural or synthetic (in this case, those in which the (OH) in the general formula above is replaced with fluorine) montmorillonite group such as montmorillonite, laponite, and hectorite, as well as synthetic mica known as sodium silicic mica or sodium or lithium teniolite, with montmorillonite and hectorite being particularly preferred. Commercially available organically modified clay minerals include, for example, BENTONE 27V, which is stearalkonium hectorite, and BENTONE 38V BC (manufactured by ELEMENTIS), which is disteardimonium hectorite.

[0039] Waxes are solid oils with a melting point of 70-110°C. Specifically, examples include hydrocarbon waxes such as paraffin wax, ceresin wax, montan wax, microcrystalline wax, synthetic waxes, (ethylene / propylene) copolymer, polyethylene wax, and Fischer-Tropsch wax, as well as ester waxes such as candelilla wax, carnauba wax, beeswax, rice wax, sunflower wax, Japanese wax kernel oil, and rice bran wax, and silicone waxes. Commercially available products include, for example, PARACERA P (PARAMELT), a paraffin wax; LIPWAX A-4 (Nippon Natural Products), a synthetic wax; EPS wax (Nippon Natural Products), an (ethylene / propylene) copolymer; and refined candelilla wax SR-3 (Nippon Natural Products).

[0040] Polysaccharide fatty acid esters form an oily gel structure. Examples of dextrin fatty acid esters include dextrin palmitate, dextrin stearate, dextrin isostearate, dextrin myristate, and (palmitic acid / ethylhexanoic acid) dextrin. Commercially available products include dextrin palmitate such as Leopal KL2 and Leopal TL2, dextrin myristate such as Leopal MKL2, (palmitic acid / ethylhexanoic acid) dextrin such as Leopal TT2, and (palmitic acid / hexyldecanoic acid) dextrin such as Leopal WX (all manufactured by Chiba Flour Milling Co., Ltd.). Examples of sucrose fatty acid esters include sucrose laurate, sucrose myristic acid, sucrose palmitate, sucrose stearate, sucrose oleate, and sucrose erucate. Examples of inulin fatty acid esters include inulin stearate. Commercially available products include Leopal ISL2 and Leopal ISK2 (both manufactured by Chiba Flour Milling Co., Ltd.).

[0041] The content of component (C) in the present invention is not particularly limited and varies depending on its composition, but as a lower limit, it is preferably 0.1% or more, more preferably 0.5% or more, and even more preferably 1% or more, based on the total amount of the oily eyelash cosmetic. As an upper limit, it is preferably 10% or less, more preferably 9% or less, and even more preferably 8% or less. As a range, it is preferably 0.1 to 10%, more preferably 0.5 to 9%, and even more preferably 1 to 8%. In particular, if fuzzy silica is included, it is preferably 0.1 to 6%, if organic modified clay minerals are included, it is preferably 1 to 10%, and if wax is included, it is preferably 3 to 15%. Within this range, the oily eyelash cosmetic is more preferable because it does not feel burdensome when applied, has excellent adhesion, high separating effect, and excellent resistance to bleeding over time.

[0042] [Component (D)] The volatile oil agent (D) used in the present invention is a liquid oil agent that has a boiling point of 260°C or less at 1 atmosphere and is fluid at 25°C, and is used as a solvent for components (A), (B), and (C). It is not particularly limited as long as it can be used in cosmetics, but examples include hydrocarbon oils such as light liquid isoparaffin and isododecane, silicone oils such as decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, methyl trimethicone and low molecular weight dimethylpolysiloxane, and one or more of these can be used. From the viewpoint of usability of oily eyelash cosmetics, it is preferable that component (D) contains a hydrocarbon oil with a boiling point of 240°C or less. Commercially available silicone oils include methyl trimethicone (TMF-1.5), cyclopentasiloxane (KF-995), trisiloxane (KF-96L-1cs), dimethylpolysiloxane (also called dimethicone) (KF-96L-1.5cs and KF-96L-2cs, manufactured by Shin-Etsu Chemical Co., Ltd.), and BELSIL DM 1PLUS (manufactured by Asahi Kasei Wacker Silicone Co., Ltd.). Other examples of hydrocarbon oils include hydrogenated polyisobutenes such as isododecane (manufactured by IMCD), IP Solvent 1620 MU, IP Solvent 2028 MU (both manufactured by Idemitsu Kosan), Isopar (manufactured by Esso Chemicals), isododecane, Marcazole R (manufactured by Maruzen Petrochemical Co.), dodecane, PARAFOL 12 RSPO-MB, and tetradecane, PARAFOL 14 RSPO-MB (SASPL Germany GmbH).

[0043] The content of component (D) in the present invention is not particularly limited, but the lower limit is preferably 20% or more, more preferably 30% or more, and even more preferably 40% or more, relative to the total amount of the oily eyelash cosmetic. The upper limit is preferably 80% or less, and more preferably 75% or less. The range is preferably 20-80%, more preferably 30-80%, and even more preferably 40-75%. Within this range, the oily eyelash cosmetic has good usability, is not burdensome when applied, has excellent adhesion, has a high separating effect, and is excellent in preventing smudging over time.

[0044] The component (E) coloring pigment used in the present invention is formulated to control the color tone and finish of oil-based eyelash cosmetics. There are no particular restrictions as long as it can be used in cosmetics in general, and any particle shape, particle size, particle surface condition, etc., can be used. It is not particularly limited in terms of shape such as plate-like, spindle-like, needle-like, particle size such as aerosol, fine particles, pigment grade, etc., and particle structure such as porous, non-porous, etc., and examples include inorganic powders, luminous powders, organic powders, composite powders, etc. Specifically, inorganic powders such as titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine, Prussian blue titanium dioxide, black titanium dioxide, ultramarine, chromium oxide, chromium hydroxide, carmine, carbon black, titanium / titanium oxide sintered products, zinc oxide, aluminum oxide, cerium oxide, zirconium oxide, inorganic powders such as bismuth oxychloride, organic pigment powders such as Red 201, Red 202, Red 205, Red 226, Red 228, Orange 203, Orange 204, Blue 404, Yellow 401, and organic pigment powders such as zirconium, barium, or aluminum lake, including Red 3, Red 104, Red 106, Orange 205, Yellow 4, Yellow 5, Green 3, Blue 1. Examples include titanium mica, iron oxide-treated mica, iron oxide-treated titanium mica, organic pigment-treated titanium mica, titanium oxide-treated glass powder, iron oxide titanium oxide-treated glass powder, lustrous powders such as aluminum powder, pigment powders such as lake pigments of organic dyes, composite powders such as fine-particle titanium oxide-coated titanium mica, fine-particle zinc oxide-coated titanium mica, barium sulfate-coated titanium mica, titanium oxide-containing silicon dioxide, zinc oxide-containing silicon dioxide, polyethylene terephthalate-aluminum-epoxy laminated powder, polyethylene terephthalate-polyolefin laminated film powder, polyethylene terephthalate-polymethyl methacrylate laminated film powder, etc., and one or more of these can be used. Furthermore, composites of these powders may also be used. In addition, these powders may be surface-treated with fluorine compounds, silicone compounds, metal soaps, lecithin, hydrogenated lecithin, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, waxes, surfactants, etc., as long as they do not hinder the effects of the present invention.

[0045] The content of component (E) in the present invention is not particularly limited, but is preferably 1 to 20% and more preferably 3 to 15% relative to the total amount of the oily eyelash cosmetic. Within this range, it is more preferable in terms of usability and color development.

[0046] In addition to the above-mentioned components (A) to (E), the oily eyelash cosmetic composition of the present invention may appropriately incorporate components commonly used in cosmetics, such as oily components other than components (A) to (D), powdery components other than component (E), fibers, surfactants, aqueous components, UV absorbers, colorfastness inhibitors, antioxidants, defoaming agents, beauty ingredients, preservatives, fragrances, etc., to the extent that they do not impair the effects of the present invention.

[0047] Oily components other than components (A) to (D) can be non-volatile, regardless of their origin (animal oil, vegetable oil, synthetic oil, etc.) or their properties (solid oil, semi-solid oil, liquid oil, etc.). Examples include hydrocarbons, fats and oils, hydrogenated oils, ester oils, fatty acids, higher alcohols, silicone oils, fluorinated oils, lanolin derivatives, etc. Specifically, these include hydrocarbons such as liquid paraffin, squalane, and petrolatum; oils and fats such as olive oil, castor oil, mink oil, and macadamia nut oil; hydrogenated oils such as hydrogenated castor oil and hydrogenated palm oil; jojoba oil; cetyl isooctanate; isopropyl myristate; isopropyl palmitate; octyldodecyl myristate; glyceryl trioctanoate; polyglyceryl diisostearate; diglyceryl triisostearate; glyceryl tribehenate; diisostearyl malate; neopentyl glycol dioctanoate; cholesterol fatty acid esters; and N-lauroyl-L-glutamine. Examples include ester oils such as acid di(cholesteryl, behenyl, octyldodecyl), fatty acids such as stearic acid and palmitic acid, higher alcohols such as stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, and behenyl alcohol, silicone oils such as methylphenylpolysiloxane and fluorine-modified organopolysiloxane, fluorinated oils such as perfluorodecane, perfluorooctane, and perfluoropolyether, and lanolin derivatives such as lanolin, lanolin acetate, isopropyl lanolin fatty acid, and lanolin alcohol.

[0048] Other powders besides component (E) can be any powder with low colorability and brilliance that is commonly used in cosmetics, and are not particularly limited in terms of shape (plate-like, spindle-like, needle-like, etc.), particle size (fuzzy, fine, pigment-grade, etc.), particle structure (porous, non-porous, etc.). Specifically, inorganic powders such as magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, aluminum magnesium silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, silica, silicon carbide, barium sulfate, boron nitride, etc., and organic powders such as magnesium stearate, zinc stearate, N-acyllysine, nylon, cellulose, starch, etc., can be used, one or more of these. Furthermore, these powders may be compounded one or more of these powders. These may be surface-treated with silicone compounds, metal soaps, lecithin, hydrogenated lecithin, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, surfactants, etc.

[0049] The fibers used are not particularly limited as long as they are commonly used in cosmetics. Examples include synthetic fibers such as nylon, polyester, and polypropylene; artificial fibers such as rayon; natural fibers such as cellulose; semi-synthetic fibers such as acetate rayon; or fibers made by combining these. The length is not particularly limited, but generally, 0.1 to 10 mm is preferred, and 0.3 to 7 mm is more preferred. The thickness is generally 0.1 to 25 tex (hereinafter simply referred to as "T"), and more preferably 0.3 to 20 T. One or more types of fibers with different materials, thicknesses, and lengths can be used. The shape of the fiber cross-section is not particularly limited, but circular, elliptical, polygonal, grid-shaped, T-shaped, Y-shaped, etc., can be used. Furthermore, these fibers may be colored or surface-treated as needed.

[0050] Any surfactant commonly used in cosmetics can be used, including nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. Examples include glycerin fatty acid esters and their alkylene glycol adducts, polyglycerin fatty acid esters and their alkylene glycol adducts, sorbitan fatty acid esters and their alkylene glycol adducts, sucrose fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyalkylene alkyl copolymerized organopolysiloxanes, polyether-modified organopolysiloxanes, and lecithin.

[0051] The aqueous component can be any water or water-soluble component, such as lower alcohols like ethyl alcohol and butyl alcohol; glycols like propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, dipropylene glycol, and polyethylene glycol; glycerols like glycerin, diglycerin, and polyglycerin; and plant extracts such as aloe vera, witch hazel, witch hazel, cucumber, lemon, lavender, and rose. Examples of water-soluble polymers include natural ones like guar gum, sodium chondroitin sulfate, sodium hyaluronate, gum arabic, sodium alginate, and carrageenan; semi-synthetic ones like methylcellulose, hydroxyethylcellulose, and carboxymethylcellulose; and synthetic ones like carboxyvinyl polymer, alkyl-added carboxyvinyl polymer, and sodium polyacrylate. Other humectants such as proteins, mucopolysaccharides, collagen, elastin, and keratin may also be included.

[0052] Examples of UV absorbers include benzophenone-based, PABA-based, cinnamic acid-based, salicylic acid-based, 4-tert-butyl-4'-methoxydibenzoylmethane, and oxybenzone. Examples of moisturizers include proteins, mucopolysaccharides, collagen, elastin, and keratin. Examples of antioxidants include α-tocopherol and ascorbic acid. Examples of beauty ingredients include vitamins, anti-inflammatory agents, and herbal medicines. Examples of preservatives include parahydroxybenzoic acid esters, phenoxyethanol, and glycols.

[0053] The oil-based eyelash cosmetic composition of the present invention is characterized by having an oil phase as a continuous phase and being a non-aqueous oil-based or water-in-oil type composition that substantially does not contain aqueous components. In the present invention, the content of aqueous components when aqueous components are included is not particularly limited, but it is preferably 0% to 10% of the total amount of the oil-based eyelash cosmetic composition.

[0054] The method for producing the oily eyelash cosmetic composition of the present invention is not particularly limited and can be produced by commonly known methods, but examples include mixing components (A), (B), (C), and (D), heating to 100°C, mixing uniformly, then adding component (E), mixing uniformly with a three-roller system, and finally filling into a container with an applicator.

[0055] The oil-based eyelash cosmetic composition of the present invention can be used in mascara, mascara primer, mascara topcoat, eyelash serum, etc., and its form can be cream, gel, liquid, etc., but a gel form is more preferred.

[0056] Furthermore, the present invention can also take the following configuration. [1] An oily eyelash cosmetic containing the following ingredients (A) to (D). (A) A polyorganosiloxane having a block structure, characterized by being represented by the following general formula (1), having a weight-average molecular weight of 500,000 or more, and being a solid at room temperature in the absence of solvent with a softening point of 50°C or higher. [ka] (In the formula, R1 , R 2 , R 3 , R 4 , R 5 is a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms, which may have hydrogen atoms or substituents; m represents the number of repeating diorganosiloxy units, where 50≧m≧0; a, b, c, d, and e represent the molar ratios of their respective siloxane units, where 0.3≧a≧0, 0.3≧b>0, 0.5≧c≧0, 0.95≧d>0.5, 0.3≧e≧0, and a+b×(2+m)+c+d+e=1; and x and y represent the number of hydroxyl or alkoxy groups bonded to 1 mole of Si atoms in the siloxane units a-e, where 0.1≧x>0 and 0.1≧y>0. (B) Oil-soluble resin that is solid at 25°C (C) Oil-based gelling agent (D) Volatile oils [2] The oily eyelash cosmetic according to [1], further comprising component (E) pigment. [3] The oily eyelash cosmetic according to [1] or [2], wherein component (B) is one or more selected from hydrogenated pentaerythrityl rosinate, dextrin isostearate, and hydrogenated glyceryl abietate. [4] The oily eyelash cosmetic according to [1] to [3] above, wherein component (C) is one or more selected from fuzzy silica, organically modified clay minerals, and waxes. [5] The oily eyelash cosmetic according to [1] to [4] above, wherein component (D) contains a hydrocarbon oil. [Examples]

[0057] The present invention will be described in detail below with reference to examples and comparative examples. However, these examples do not limit the present invention in any way.

[0058] The devices used in the examples are as follows: (1) GPC measurement conditions Equipment: HLC-8320GPC manufactured by Tosoh Corporation Developing solvent: Tetrahydrofuran (THF) Flow rate: 0.5mL / min Detector: Differential refractive index detector (RI) Columns: Use two of the following columns directly connected together. TSKgel GMHHR-H(30)(7.8mmI.D.×30cm×1) (Manufactured by Tosoh Corporation) Column temperature: 40℃ Sample injection volume: 200 μL (THF solution with a concentration of 20 g / L) Standard: Monodisperse polystyrene (2) Silicon nuclear magnetic resonance spectrum ( 29 Si-NMR) measurement conditions Equipment: 300MHz-NMR manufactured by JEOL Ltd. Solvent: CDCl3 Sample concentration: 20% Internal standard: Tetramethylsilane (TMS)

[0059] In the following, the kinematic viscosity of the product was measured at 25°C using a Cannon-Fenske viscometer according to the method described in JIS Z 8803:2011. The content of silanol hydroxyl groups in the product (mass%), hereinafter referred to as silanol content, was quantified from the amount of methane gas generated when the product was reacted with a Grignard reagent (methylmagnesium iodide).

[0060] [Synthesis of polyorganosiloxanes with block structures] Manufacturing Example 1 2700 g of deionized water, 400 g of isobutanol, and 300 g of heptane were charged into a 5 L three-necked flask equipped with a stirrer, condenser, dropping funnel, and thermometer, and stirred. A mixture of 650 g (4.3 mol) of methyltrichlorosilane (at 25°C), 70 g (0.9 mol Si equivalent) of α,ω-dimethylchlorosiloxypolydimethylsiloxane (formula 3 below), and 300 g of heptane was added dropwise over 2 hours while controlling the internal temperature to prevent it from exceeding 40°C. After the addition was complete, the aqueous hydrochloric acid phase, in which hydrogen chloride generated by the hydrolysis of the chlorosilyl group dissolved in the deionized water, was separated from the organic phase. This organic phase was washed multiple times with saline solution until the water-wash phase became neutral. The resulting organic phase had a kinematic viscosity of 2.7 mm². 2The organic solution contained an organosiloxane with a molecular weight of approximately 7600, measured by GPC, and had a non-volatile residue of 33% under drying conditions of 105°C for 3 hours. 20 g of concentrated hydrochloric acid was added to this organic solution, and a condensation polymerization reaction was carried out by heating at 60°C for 3 hours. Subsequently, heptane was added to adjust the concentration to a drying residue of 20%. After washing multiple times with saline solution until the water washing phase was neutral, 0.03% citric acid was added to the organic solution and dissolved to obtain an organic solution in which the polyorganosiloxane with the desired block structure was dissolved in an organic solvent. This organic solution had a kinematic viscosity of 14.4 mm². 2 Under drying conditions of / s at 105°C for 3 hours, the non-volatile residue was 21%, and the molecular weight was approximately 1.43 million according to GPC. 29 Si-NMR measurements revealed signals attributed to diorganosiloxane units (D units) in the range of -16 to -23 ppm, with a detection width of 5 ppm for the main signal peak. Furthermore, it was confirmed that the polyorganosiloxane having the block structure described above is solid at room temperature in the absence of solvent, and that its softening point is 50°C or higher. It was also confirmed that the polyorganosiloxane having the block structure described above satisfies the above general formula (1).

[0061] [ka]

[0062] Manufacturing Example 2 A solution of polyorganosiloxane having a block structure with a weight-average molecular weight of 3.1 million was obtained in the same manner as in Production Example 1, except that the condensation polymerization reaction conditions were changed to 60°C for 4 hours. Furthermore, it was confirmed that the polyorganosiloxane having the block structure described above is solid at room temperature in the absence of solvent, and that its softening point is 50°C or higher. It was also confirmed that the polyorganosiloxane having the block structure described above satisfies the above general formula (1).

[0063] Manufacturing Example 3 A solution of polyorganosiloxane having a block structure with a weight-average molecular weight of 590,000 was obtained in the same manner as in Production Example 1, except that the condensation polymerization reaction conditions were changed to 60°C for 2 hours. Furthermore, it was confirmed that the polyorganosiloxane having the block structure described above is solid at room temperature in the absence of solvent, and that its softening point is 50°C or higher. It was also confirmed that the polyorganosiloxane having the block structure described above satisfies the above general formula (1).

[0064] Manufacturing Example 4 To 500 g of the 20% dried residue polysiloxane solution obtained in Production Example 1, 16 g (0.16 mol) of triethylamine and 13 g (0.12 mol) of trimethylchlorosilane were added, and the mixture was heated at 60°C for 3 hours to carry out the trimethylsiloxylation reaction of the silanol in the polysiloxane. Subsequently, the mixture was washed multiple times with saline solution until the water washing phase became neutral, yielding an organic solution in which a polyorganosiloxane with a weight-average molecular weight of 1.56 million and a trimethylsiloxy-sealed block structure was dissolved in an organic solvent. Furthermore, it was confirmed that the polyorganosiloxane having the block structure described above is solid at room temperature in the absence of solvent, and that its softening point is 50°C or higher. It was also confirmed that the polyorganosiloxane having the block structure described above satisfies the above general formula (1).

[0065] Examples 1-19 and Comparative Examples 1-6: Oil-based mascara (gel type) Oily eyelash cosmetics with the formulations shown in Table 1 were prepared according to the manufacturing method described below, and evaluated for (a) lack of smudging, (b) lack of burden, (c) good adhesion, and (d) separating effect using the methods described below. The results are also shown in Table 1.

[0066] [Table 1]

[0067] Note: For the "solid content" of components (1) to (4), the solids obtained by drying the synthetic product obtained in the above manufacturing example using a spray dryer were used. *1: SR1000 (manufactured by Momentive Performance Materials Japan) *2: Ester gum HP (manufactured by Arakawa Chemical Industries, Ltd.) *3: Unifilma HVY (manufactured by Chiba Flour Milling Co., Ltd.) *4: BENTONE 38V BC (manufactured by Elementis) *5: AEROSIL 300 (manufactured by Nippon Aerosil Co., Ltd.) *6: PERFORMA SW-100 (manufactured by Japan Surfactant Industry Co., Ltd.) *7: Leopard KL2 (manufactured by Chiba Flour Milling Co., Ltd.) *8: IP Solvent 1620 (manufactured by Idemitsu Kosan Co., Ltd.) *9: Tarox BL-100P (manufactured by Titanium Industries Co., Ltd.) *10: Talc FG105 (manufactured by Fuji Talc Co., Ltd.)

[0068] (Manufacturing method) A. Heat components (1) to (8) and components (10) to (18) to approximately 100°C and mix them uniformly. B. Mix components (9) and (21) beforehand. Add B and components (19), (20), (22) to (24) to CA and mix uniformly using a three-roller mixer. DC was filled into a container to obtain an oil-based mascara.

[0069] (Evaluation method) For each sample, a usage test was conducted by a panel of 20 cosmetic evaluation specialists. Each panel member evaluated each of the following evaluation items (a) to (d) on a 7-point scale according to the absolute evaluation criteria below, and assigned a score. The average score was calculated from the sum of the scores from all panel members for each sample, and the final evaluation was made according to the following 4-point evaluation criteria. (Evaluation criteria) (i) Absence of bleeding: Each sample was applied to the eyelashes, and the panel was allowed to go about their normal daily activities. After approximately 8 hours, the discoloration around the application site was visually observed. (b) Lack of discomfort: Each sample was applied to the eyelashes, and the panel members went about their normal daily lives. After about 8 hours, the presence or absence of discomfort such as friction between eyelashes or discomfort around the eyes was evaluated. (h) Adhesion: After applying each sample to the eyelashes three times, we visually observed whether each individual eyelash had become thicker compared to before application. (ii) Separation effect: After applying each sample to the eyelashes three times, we visually observed whether the eyelashes remained separated and did not stick together.

[0070] (Absolute evaluation criteria) (Rating): (Evaluation) 6: Very good 5: Good 4: Fairly good 3: Normal 2: Slightly bad 1: Bad 0: Very bad (4-level evaluation criteria) (Judgment): (Average score) ◎: More than 5 points: Excellent ○: Over 3.5 points and under 5 points: Good △: Over 2 points and 3.5 points or less: Slightly poor × : 2 points or less : Defective

[0071] As is clear from the results in Table 1, the oil-based mascara of the example performed well in all evaluation items. On the other hand, Comparative Example 1, which did not contain ingredient (A), was inferior in all evaluation items, and Comparative Example 2, which contained trimethylsiloxysilicate instead of ingredient (A), did not achieve satisfactory quality in terms of lightness of wear and adhesion. Furthermore, Comparative Example 3, which did not contain ingredient (B), did not achieve satisfactory quality in terms of lightness of wear and adhesion. Comparative Example 4, which did not contain ingredient (C), was inferior in terms of lack of smudging, adhesion, and separating effect. Comparative Examples 5 and 6, which did not contain ingredient (D), were inferior in all evaluation items: lack of smudging, lightness of wear, adhesion, and separating effect.

[0072] Example 20: Oil-based eyelash serum (Ingredients) (%) (1) Polyorganosiloxane of Production Example 1 (30% isododecane solution) (Mixture of component (A) and component (D)) 7 (2) Dextrin isostearate *3 (Component (B)) 3 (3) Dextrin palmitate 5 (4) Quaternium-18 hectorite *11 (component (C)) 5 (5) Hydrogenated polyisobutene *8 (Component (D)) Remaining amount (6) Olive squalane 4 (7) Silica *12 1 (8) Propylene carbonate 1 (9) Sorbitan sesquioleate 0.1 (10) BG 1 (11) DPG 0.1 (12) Phenoxyethanol 0.3 (13) Rosemary leaf extract 0.01 (14) Jojoba seed oil 0.01 (15) Sodium hyaluronate 0.01 (16)Fragrance 0.5 *11: Smecton SAN-P (manufactured by Kunimine Industries Co., Ltd.) *12: Sunsphere NP-100 (manufactured by AGC SI-TEC)

[0073] (Manufacturing method) A. Heat components (2), (3) and components (6), (7), and (9) to approximately 100°C and mix them uniformly. B. Mix components (4) and (5) and (8) beforehand. Add B, the remaining amounts of components (1) and (5), and components (10) to (16) to CA and mix uniformly. DC was filled into a container to obtain an oil-based eyelash serum. (Evaluation results) The oil-based eyelash serum obtained in this manner did not cause any burden on the lashes over time and was excellent in terms of separating the lashes.

[0074] Example 21: Oil-based mascara primer (Ingredients) (%) (1) Polyorganosiloxane of Production Example 2 (30% isododecane solution) (Mixture of component (A) and component (D)) 35 (2) Trimethylsiloxysilicate *1 4 (3) Candelilla resin *13 (Component (B)) 5 (4) Pentaerythrityl hydrogenated rosinate *2 (Component (B)) 2 (5) Polyethylene *14 (Component (C)) 3 (6) Fumed hydrophobized silica *15 (Component (C)) 1 (7) Fumed silica *5 (component (C)) 1 (8) Isododecane (Component (D)) Remaining amount (9) Dimethicone *16 3 (10) Mica 20 (11) PEG-9 Polydimethylsiloxyethyl Dimethicone 0.1 (12) Tocopherol 0.05 (13) Nylon powder 1 (14) Phenoxyethanol 0.3 (15) Squalane 0.05 *13: Candelilla resin E-1 (manufactured by Nippon Natural Products Co., Ltd.) *14: Synthetic wax P-200 (manufactured by Nippon Natural Products Co., Ltd.) *15: AEROSIL R976S (manufactured by Nippon Aerosil Co., Ltd.) *16: Silicone KF-96A (6CS) (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0075] (Manufacturing method) A. Heat and dissolve components (2) to (7), part of (8), and (9) to (12) at approximately 100°C, and mix them using a three-roller system. B. Mix the remaining amounts of (1) and (8) with (13) to (15). Add B to CA and mix. D.C. was filled into a container to obtain an oil-based mascara base. (Evaluation results) The oil-based mascara primer obtained in this manner was excellent in terms of lightness, good adhesion, and separating effect.

[0076] Example 22: Water-in-oil mascara (Ingredients) (%) (1) Polyorganosiloxane of Production Example 1 (30% isododecane solution) (Mixture of component (A) and component (D)) 30 (2) Hydrogenated glyceryl abietate (ingredient (B)) 5 (3) Beeswax 5 (4) Stearic acid 2 (5) (Ethylene / Propylene) Copolymer *17 (Component (C)) 2 (6) Cetearyl alcohol 3 (7) Dextrin myristate *18 2.5 (8) Isododecane (Component (D)) Remaining amount (9) Distearylammonium hectorite *4 (Component (C)) 5 (10) Propylene carbonate 1 (11) Yellow iron oxide treated with 2% lauroyl lysine and 1% distearate. (Component (E)) 0.5 (12) Red iron oxide treated with 3% lauroyl lysine and 1% distearate. (Component (E)) 0.5 (13) Black iron oxide treated with 2% lauroyl lysine and 1% distearate. (Component (E)) 0.3 (14) Red No. 202 (Component (E)) 0.8 (15) 1% lecithin-treated talc 5 (16) Silica *19 1 (17) Atomized silica 3 (18) Silicone 3% treated sericite 3 (19) Lecithin 0.3 (20)Wednesday 10 (21) BG 0.5 (22) Nylon powder 0.2 (23) Ethanol 2 (24) Methylparaben 0.2 *17: EPS wax (manufactured by Japan Natural Products Co., Ltd.) *18: Leopard MKL2 (manufactured by Chiba Flour Milling Co., Ltd.) *19: Cosme Silica CQ4 (manufactured by Fuji Silicia Chemical Co., Ltd.)

[0077] (Manufacturing method) A. Heat ingredients (2) to (10) to approximately 100°C. Add ingredients (11) to (18) to BA and mix uniformly with a roller. C. Mix components (19) to (24) uniformly. Add component (1) to the oil phase of DB, then add aqueous phase C to emulsify. The ED was filled into a container to obtain a water-in-oil mascara. (Evaluation results) The water-in-oil mascara obtained in this manner was excellent in all aspects: smudge-free, lightweight, good adhesion, and separating effect.

[0078] Example 23: Oil-based colored mascara (Ingredients) (%) (1) Polyorganosiloxane of Production Example 4 (30% isododecane solution) (Mixture of component (A) and component (D)) 45 (2) Dextrin isostearate *3 (Component (B)) 0.5 (3) Hydrogenated glyceryl abietate (ingredient (B)) 5 (4) Synthetic wax (melting point 79~89℃) *20 (component (C)) 8 (5) Candelilla wax *21 (ingredient (C)) 5 (6) Polymethylsilsesquioxane *22 2 (7) Talc 6 (8) Hydrogenated polyisobutene *8 (Component (D)) Remaining amount (9) Disteardimonium hectorite *4 (component (C)) 5 (10) Propylene carbonate 1 (11) Cellulose *23 2 (12) Triethoxycaprylylsilane 2% coated titanium dioxide 3 (13) Carmine 2 (14) Methicone 1.5% · Silica 12% coated ultramarine (component (E)) 1.5 (15) Titanium dioxide coated synthetic fluorophlogopite (component (E)) 1 (16) Silica / Titanium Dioxide Coated Borosilicate (Ca / Na) (Component (E)) 3 (17) DPG 1 (18) Phenoxyethanol 0.3 (19) Sorbitan sesquiisostearate 0.2 (20) Dilauroyl glutamate lysine sodium 0.5 *20: Synthetic ceresin JNP-81 (manufactured by Rengo Co., Ltd.) *21: Refined Candelilla Wax SR-3 (manufactured by Nippon Natural Products Co., Ltd.) *22: Tospar 2000B (manufactured by Momentive Performance Materials Japan) *23: CELLULOBEADS D-5 (manufactured by Rengo)

[0079] (Manufacturing method) A. Heat ingredients (2) to (6) to approximately 100°C and mix them uniformly. B. Mix a portion of component (8), component (9), and component (10) beforehand. Add B, the remaining amounts of components (1), (7), and (8), and components (11) to (20) to CA, and mix uniformly with a roller. DB was filled into a container to obtain an oil-based colored mascara. (Evaluation results) The oil-based color mascara obtained in this manner was excellent in all aspects: smudge-free, lightweight, good adhesion, and separating effect.

Claims

1. An oily eyelash cosmetic containing the following ingredients (A) to (D). (A) A polyorganosiloxane having a block structure, represented by the following general formula (1), having a weight-average molecular weight of 500,000 or more, and being a solid at room temperature in the absence of solvent with a softening point of 50°C or higher. 【Chemistry 1】 (In the formula, R １ , R ２ , R ３ , R ４ , R ５ (where m is a saturated or unsaturated hydrocarbon group having 1 to 20 carbon atoms, which may have hydrogen atoms or substituents; m represents the number of repeating diorganosiloxy units, where 50 ≥ m ≥ 0; a, b, c, d, and e represent the molar ratios of their respective siloxane units, where 0.3 ≥ a ≥ 0, 0.3 ≥ b > 0, 0.5 ≥ c ≥ 0, 0.95 ≥ d > 0.5, 0.3 ≥ e ≥ 0, and a + b × (2 + m) + c + d + e = 1; and x and y represent the number of hydroxyl or alkoxy groups bonded to 1 mole of Si atoms in the siloxane units a to e, where 0.1 ≥ x > 0 and 0.1 ≥ y > 0.) (B) Oil-soluble resins that are solid at 25°C, excluding silicone-based resins. (C) Oil-based gelling agent (D) Volatile oils

2. Furthermore, the oily eyelash cosmetic composition according to claim 1, further comprising component (E) pigment.

3. The oily eyelash cosmetic composition according to claim 1 or 2, wherein the component (B) is one or more selected from hydrogenated pentaerythrityl rosinate, dextrin isostearate, and hydrogenated glyceryl abietate.

4. The oily eyelash cosmetic composition according to claim 1 or 2, wherein the component (C) is one or more selected from fuzzy silica, organically modified clay minerals, and waxes.

5. The oily eyelash cosmetic composition according to claim 1 or 2, wherein the component (D) contains a hydrocarbon oil.

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