Cosmetics for creating double eyelids

Abstract

The objective is to provide a cosmetic product for creating double eyelids that can be used in both folding and adhesive types, possessing excellent double eyelid-forming ability and film-holding properties, as well as a pleasant feel without stickiness or stiffness. [Solution] A cosmetic composition for forming double eyelids, comprising only a film-forming agent and a solvent, wherein the film-forming agent comprises a norbornane structure-containing silicone-modified polymer, and the content of the norbornane structure-containing silicone-modified polymer is 1% to 30% by mass based on the total mass of the cosmetic composition for forming double eyelids.

Description

[Technical Field]

[0001] This invention relates to a cosmetic composition for forming double eyelids, comprising a film-forming agent and a solvent. More specifically, this invention relates to a cosmetic composition for forming double eyelids that has excellent double eyelid-forming ability and film-holding properties, as well as a pleasant feel without stickiness or stiffness. [Background technology]

[0002] Double eyelids are considered an element of beauty, and as a simpler way to create double eyelids compared to procedures at cosmetic surgery clinics, cosmetics designed to create double eyelids are used. Two types of cosmetics are known for creating double eyelids: fold-in type and adhesive type. Fold-in type cosmetics form a film harder than the skin on a portion of the eyelid, and when the eye is opened, the eyelid folds at the boundary between the film and the upper eyelid to form a double eyelid line. Adhesive type cosmetics form a film on the crease (double eyelid line) created on the eyelid, and are used to fix the crease and create a double eyelid. Traditionally, double eyelid-forming cosmetics containing natural rubber latex have been used. However, natural rubber latex has the problem of causing mild allergic symptoms or severe anaphylactic shock in people with latex allergies. Therefore, in recent years, double eyelid forming cosmetics containing acrylic polymer resin as a film-forming agent instead of natural rubber latex, and double eyelid forming tools using adhesive liquids containing acrylic polymer resin have been proposed (see Patent Documents 1 and 2). [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2014-24762 [Patent Document 2] Japanese Patent Publication No. 2006-255333 [Overview of the project] [Problems that the invention aims to solve]

[0004] The cosmetic or adhesive liquid for forming double eyelids containing acrylic polymer resin used in Patent Documents 1 and 2 has strong adhesion and excellent double eyelid-forming ability by fixing wrinkles. Furthermore, since acrylic polymer resin can form a film harder than skin, it also has the ability to form double eyelids by folding. However, because acrylic polymer resin is hard, there were problems with poor film durability and usability, such as stiffness of the film, inability to follow eyelid movements such as blinking, resulting in cracking or peeling of the film. In addition, acrylic polymer resin has low water resistance, and there were problems with poor film durability and usability, such as stickiness of the film due to humidity and sweat, or peeling of the film from the skin. Furthermore, the film formed from the cosmetic or adhesive liquid for forming double eyelids containing acrylic polymer resin has poor film durability, so it could not be used as a folding-type double eyelid-forming cosmetic. Therefore, the present invention aims to provide a cosmetic product for forming double eyelids that can be used in both folding and adhesive types, which has an excellent double eyelid-forming effect, excellent double eyelid-forming ability and film-holding properties, and a pleasant feel without stickiness or stiffness. [Means for solving the problem]

[0005] As a result of extensive research to solve the above problems, the inventors of this invention discovered that by using a polymer having a norbornane structure as a film-forming agent, a cosmetic composition for creating double eyelids that exhibits an excellent double eyelid-forming effect can be obtained, thus completing the present invention.

[0006] In other words, the present invention is A cosmetic composition for forming double eyelids, comprising a film-forming agent and a solvent, The film-forming agent contains a polymer having a norbornane structure, The content of the polymer having the norbornane structure is 1% to 30% by mass based on the total mass of the double eyelid-forming cosmetic composition. This relates to cosmetics for creating double eyelids.

[0007] The polymer having the norbornane structure is preferably a norbornane structure-containing silicone-modified polymer.

[0008] The content of the polymer having the norbornane structure is preferably 7.5% to 18% by mass based on the total mass of the double eyelid-forming cosmetic.

[0009] The solvent is preferably at least one solvent selected from the group consisting of volatile hydrocarbon oils, volatile silicone oils, and liquid oils. One preferred embodiment of the present invention is a double eyelid-forming cosmetic comprising only a film-forming agent and a solvent, wherein the film-forming agent comprises a norbornane structure-containing silicone-modified polymer, and the content of the norbornane structure-containing silicone-modified polymer is 1% to 30% by mass based on the total mass of the double eyelid-forming cosmetic. [Effects of the Invention]

[0010] The cosmetic for double eyelid formation of the present invention has excellent double eyelid formation ability as a folding type. That is, the film formed from the cosmetic for double eyelid formation of the present invention has sufficient hardness for the eyelid to be folded at the boundary (double line) between the film and the upper eyelid when the eyes are opened, thereby forming a double eyelid. Further, the cosmetic for double eyelid formation of the present invention has excellent double eyelid formation ability as an adhesion type. That is, the film formed from the cosmetic for double eyelid formation of the present invention has sufficient adhesiveness to fix the wrinkles temporarily made on the eyelid and form a double eyelid. Further, the cosmetic for double eyelid formation of the present invention has excellent film persistence. That is, it can maintain the film that forms a double eyelid for 10 hours or more without the film cracking or peeling off from the skin due to the movement of the eyelid caused by blinking or due to sweat or moisture. Further, the film formed from the cosmetic for double eyelid formation of the present invention has a good feeling of use. That is, the film formed from the cosmetic for double eyelid formation of the present invention does not cause stickiness or roughness even 10 hours after the formation of the double eyelid. That is, according to the present invention, it is possible to provide a cosmetic for double eyelid formation having an excellent double eyelid formation effect, which is excellent in double eyelid formation ability and film persistence, and has a good feeling of use without causing stickiness or roughness.

Embodiments for Carrying Out the Invention

[0011] The cosmetic for double eyelid formation of the present invention contains a film-forming agent and a solvent, the film-forming agent contains a polymer having a norbornane structure, and the content of the polymer having a norbornane structure is 1% to 30% by mass based on the total mass of the cosmetic for double eyelid formation. Hereinafter, each component will be described.

[0012] <Film-forming agent> The cosmetic for double eyelid formation of the present invention contains a polymer having a norbornane structure as a film-forming agent. ​The double eyelid can be formed, for example, by forming a film between the base of the eyelashes and the desired double line when the eyes are closed, and folding the eyelid at the boundary between the film and the upper eyelid when the eyes are opened. Since the polymer having a norbornane structure has high strength and excellent flexibility, the film containing the polymer having a norbornane structure is harder than the skin and has the ability to form double eyelids, i.e., the eyelid can be folded at the boundary between the film and the upper eyelid when the eyes are opened, and also has film persistence, i.e., it is difficult for cracks or peeling from the skin to occur. In addition, since the polymer having a norbornane structure is not sticky after drying, the film does not adhere to the eyelid due to blinking. Alternatively, the double eyelid can be formed, for example, by artificially creating wrinkles (double lines) in the horizontal direction slightly above the edge of the upper eyelid and fixing the temporarily created wrinkles with a double eyelid forming cosmetic. Since the polymer having a norbornane structure has high adhesion to the skin and excellent flexibility, the film containing the polymer having a norbornane structure has the ability to form double eyelids, i.e., it can fix the temporarily created wrinkles, and also has film persistence, i.e., it is difficult for cracks or peeling from the skin to occur. In addition, since the polymer having a norbornane structure has excellent flexibility, it can form a film that is not rough and has an excellent feeling of use. Furthermore, the film formed from acrylic polymer resin has low water resistance. For example, if the film gets wet from sweating a lot during summer or exercise, washing the face, or taking a bath or swimming pool, its adhesiveness decreases and it easily peels off the skin. Therefore, users who do not want others to know that they are using double eyelid cosmetics must be careful not to sweat or get wet. Also, if they do sweat or get wet, they may worry that the film has peeled off their skin and their eyelids have become single eyelids, and they may need to immediately reshape their double eyelids. On the other hand, the film formed from the polymer having a norbornane structure of the present invention is water-resistant, so it is less likely to peel off the skin even if the film gets wet. Therefore, users do not need to worry that the film will peel off their skin and their eyelids will become single eyelids even if the film gets wet. The double eyelid cosmetics of the present invention can be used with peace of mind even during summer or on days when exercising or swimming in a pool. Furthermore, the film formed from acrylic polymer resin is glossy, making it noticeable when applied to the eyelids. Therefore, using a double eyelid-forming cosmetic containing acrylic polymer resin as a fold-in type can cause anxiety, as it may reveal to others that the user is using a double eyelid-forming cosmetic. On the other hand, the film formed from the double eyelid cosmetic containing the norbornane structure polymer of the present invention is highly transparent and less glossy, making it inconspicuous when applied to the eyelids. Therefore, even users who do not want others to know they are using a double eyelid cosmetic can confidently use the double eyelid-forming cosmetic of the present invention as a fold-in type.

[0013] The polymer having the norbornane structure of the present invention is given by the following formula: [ka] The polymer only needs to have a norbornane structure represented by at any location.

[0014] The polymer having the norbornane structure is not particularly limited as long as it has the norbornane structure in its molecule, but from the viewpoint of improving adhesion to the eyelid skin and film durability, it is more preferable that it is a norbornane structure-containing silicone-modified polymer.

[0015] Examples of silicone-modified polymers containing norbornane structures include those with the following formula (1): [ka] [In formula (1), R 1 Each of these independently represents an alkyl group having 1 to 12 carbon atoms. X is given by the following equation (i): [ka] (In formula (i), R 2 Each of these independently represents a hydrocarbon group having 1 to 12 carbon atoms, and c is an integer from 1 to 5. ) represents a group represented by ), where a is an integer from 1 to 3, and b is an integer from 0 to 2. ] represents a repeating unit, or the following formula (2): [ka] (In formula (2), R 1 , R 2 Examples include polymers having repeating units represented by (1), where b and d are the same as defined in formula (1) above, and d is an integer from 2 to 5.

[0016] The alkyl group having 1 to 12 carbon atoms is not particularly limited, but examples include linear or branched alkyl groups, such as methyl, ethyl, n-propyl, n-butyl, s-butyl, t-butyl, or pentyl groups, with methyl being preferred.

[0017] The hydrocarbon group having 1 to 12 carbon atoms is not particularly limited, but examples include alkyl groups having 1 to 12 carbon atoms or aryl groups having 6 to 12 carbon atoms, and is preferred. Examples include alkyl groups having 1 to 12 carbon atoms or phenyl groups, more preferably alkyl groups having 1 to 3 carbon atoms, and even more preferably methyl groups.

[0018] c can be any integer between 1 and 5, and is preferably 1. In other words, the group represented by formula (i) is preferably a trimethylsiloxy group.

[0019] a is an integer from 1 to 3 and is not particularly limited, but examples include polymers in which repeating units of a=2 and repeating units of a=3 are mixed, and a is preferably 3. b is an integer between 0 and 2, and is not particularly limited, but is preferably 0, 1, or a combination thereof, with 0 being more preferred.

[0020] In equation (2) above, R 1 , R 2 The preferred embodiments of and b are the same as described above. d is an integer between 2 and 5, and is not particularly limited, but d=2 is preferred. The cyclic silicone structure in formula (2) above is R 1 and R 2 It is preferable that is a methyl group and d is 2 or 3. That is, the cyclic silicone structure in formula (2) is preferably the structure represented by the following formula (4) or (5).

[0021] [ka]

[0022] From the viewpoints of the double eyelid forming power for fixing the wrinkles formed on the eyelids and the film persistence in which the fixed wrinkles do not peel off, the ratio of the repeating unit represented by the formula (1) or (2) in the norbornane structure-containing silicone-modified polymer is preferably 10% or more, more preferably 30% or more, still more preferably 50% or more, out of the total number of repeating units in the polymer. The upper limit is 100%, preferably 95% or less, more preferably 90% or less, still more preferably 70% or less. The specific range of the number of repeating units represented by the formula (1) or (2) in the norbornane structure-containing silicone-modified polymer is preferably 10% to 100%, more preferably 10% to 95%, still more preferably 30% to 90%, even more preferably 50% to 70%, out of the total number of repeating units in the polymer.

[0023] In addition to the repeating unit represented by the formula (1) or (2), the norbornane structure-containing silicone-modified polymer has the following formula (3):

Chemical formula

[0024] When the polymer contains repeating units represented by formula (3) above, the proportion of repeating units represented by formula (3) in the norbornane structure-containing silicone-modified polymer is preferably 90% or less, more preferably 70% or less, and even more preferably 50% or less of the total number of repeating units in the polymer, from the viewpoint of double eyelid-forming ability and film durability. Furthermore, when the polymer contains repeating units represented by formula (3) above, the proportion is preferably 5% or more, more preferably 10% or more, and even more preferably 30% or more of the total number of repeating units in the polymer. The specific range of the number of repeating units represented by formula (3) in the norbornane structure-containing silicone-modified polymer is preferably 5% to 90%, more preferably 10% to 70%, and even more preferably 30% to 50% of the total number of repeating units in the polymer. The proportion of repeating units represented by formulas (1) to (3) above in the norbornane structure-containing silicone-modified polymer is: 1 This can be determined by 1H-NMR measurement.

[0025] As the norbornane structure-containing silicone-modified polymer, silicone-modified polynorbornene is preferred, and more preferably the following formula (6): [ka] This is a silicone-modified polynorbornene represented by (Equation (6), where e and f are the number of repeating units, and each is an independent integer of 1 or more). From the viewpoint of double eyelid formation ability and film durability, the ratio of e and f in formula (6) is preferably e / f = 20 / 80 to 90 / 10 (mol / mol), more preferably 30 / 70 to 80 / 20 (mol / mol), and even more preferably 50 / 50 to 70 / 30 (mol / mol).

[0026] The number-average molecular weight Mn of the norbornane structure-containing silicone-modified polymer is preferably 50,000 or more, more preferably 100,000 or more, even more preferably 200,000 or more, preferably 2,000,000 or less, more preferably 1,500,000 or less, even more preferably 800,000 or less, and even more preferably 600,000 or less, from the viewpoint of achieving both double eyelid-forming ability and film durability. The specific range of the number-average molecular weight Mn of the norbornane structure-containing silicone-modified polymer is preferably 50,000 to 2,000,000, more preferably 100,000 to 1,500,000, even more preferably 200,000 to 800,000, and even more preferably 200,000 to 600,000. The number-average molecular weight (Mn) of the polymer can be measured by gel filtration chromatography (GPC) using polystyrene as the standard substance.

[0027] Polymers having a norbornane structure can be used individually or in combination of two or more types.

[0028] Polymers having a norbornane structure can be obtained, for example, by addition polymerization of a cyclic olefin monomer containing or capable of forming a norbornane structure using known methods. For example, if the polymer having a norbornane structure is a norbornane structure-containing silicone-modified polymer having repeating units represented by formula (1) or (2), it can be obtained by addition polymerization of a cyclic olefin monomer represented by the following formula (1a) or (2a). Furthermore, a cyclic olefin monomer represented by the following formula (3a) may be copolymerized.

[0029] [ka]

[0030] In formula (1a), R 1 Each of these independently represents an alkyl group having 1 to 12 carbon atoms, and X is given by the following formula (i) [ka] (In formula (i), R 2Each of the following independently represents a hydrocarbon group having 1 to 12 carbon atoms, and c is an integer from 1 to 5. ) is a group represented by a, where a is an integer from 1 to 3, and b is an integer from 0 to 2.

[0031] [ka]

[0032] In formula (2a), R 1 , R 2 And b have the same definition as the base in formula (1a) above, and d is an integer from 2 to 5.

[0033] [ka]

[0034] In formula (3a), R 3 ~R 6 Each of these independently represents a hydrogen atom, a halogen atom, a substituent selected from alkyl groups, alkenyl groups, cycloalkyl groups, alkoxy groups, and halogenated hydrocarbon groups having 1 to 10 carbon atoms, an aryl group or aryloxy group having 6 to 10 carbon atoms, or an oxetanyl group, alkoxycarbonyl group, polyoxyalkylene group, polyglyceryl group, or alkoxysilyl group. Here, R 3 ~R 6 The two groups selected from these may bond to each other to form an alicyclic structure, an aromatic ring structure, a carboimide group, or an acid anhydride group. Also, b in formula (3a) has the same definition as b in formula (1a).

[0035] When copolymerizing the cyclic olefin monomer represented by the above formula (3a), the amount used is preferably 90 mol% or less, more preferably 70 mol% or less, and even more preferably 50 mol% or less, with the total monomer used for polymerization being 100 mol%, from the viewpoint of double eyelid formation ability and film durability.

[0036] The silicone-modified polynorbornene represented by formula (6) can be obtained by addition polymerization of tris(trimethylsiloxy)silylnorbornene represented by formula (6a) below and norbornene.

[0037] [ka]

[0038] From the viewpoint of double eyelid formation ability and film durability, the copolymerization ratio of tris(trimethylsiloxy)silylnorbornene to norbornene is preferably 20 / 80 to 90 / 10 (mol / mol), more preferably 30 / 70 to 80 / 20 (mol / mol), and even more preferably 50 / 50 to 70 / 30 (mol / mol).

[0039] The repeating units represented in formulas (1) to (3) and formula (6) all represent 2,3-addition structural units of the cyclic olefin monomer, which is the raw material monomer. However, some of these may be 2,7-addition structural units resulting from the addition polymerization of the cyclic olefin monomer.

[0040] As the norbornane structure-containing silicone-modified polymer, (norbornene / tris(trimethylsiloxy)silylnorbornene) copolymer is preferred, and its INCI name (International Cosmetic Ingredient Dictionary) is used. (and Handbook, 16th edition, Vol. 2, 2016, p. 2274): This compound is denoted as NORBORNENE / TRIS(TRIMETHYLSILOXY)SILYLNORBORNENE COPOLYMER. Examples of commercially available silicone-modified polymers containing norbornane structures include "NBN-30-ID" (an isododecane solution of norbornane / tris(trimethylsiloxy)silylnorbornene) copolymer, manufactured by Shin-Etsu Chemical Co., Ltd. NBN-30-ID can be used as is, or it can be used in a form with a substituted solvent, or in a form where the solvent has been evaporated to dryness.

[0041] The amount of polymer having a norbornane structure contained in the double eyelid-forming cosmetic of the present invention is 1% by mass or more from the viewpoint of double eyelid-forming ability and film durability, and 30% by mass or less from the viewpoint of a good feel that does not cause stickiness or stiffness, based on the total mass of the double eyelid-forming cosmetic. However, the content range of the polymer having a norbornane structure can be appropriately adjusted as long as it does not impair the effects of the present invention. For example, the content of the polymer having a norbornane structure can be 1% by mass, 1.5% by mass, 2% by mass, 2.5% by mass, 3% by mass, 3.5% by mass, 4% by mass, 4.5% by mass, 5% by mass, 5.5% by mass, 6% by mass, 6.5% by mass, 7% by mass, 7.5% by mass, 8% by mass, 8.5% by mass, 9% by mass, 9.5% by mass, 10% by mass, 10.5% by mass, 11% by mass, 11.5% by mass, 12% by mass, 12.5% ​​by mass, 13% by mass, 13.5% by mass, 14% by mass, 14.5% by mass, 15% by mass, 15.5% by mass, 16% by mass, 16.5% by mass, 17% by mass, 17% by mass. The lower and upper limits can be arbitrarily adjusted from among 5% by mass, 18% by mass, 18.5% by mass, 19% by mass, 19.5% by mass, 20% by mass, 20.5% by mass, 21% by mass, 21.5% by mass, 22% by mass, 22.5% by mass, 23% by mass, 23.5% by mass, 24% by mass, 24.5% by mass, 25% by mass, 25.5% by mass, 26% by mass, 26.5% by mass, 27% by mass, 27.5% by mass, 28% by mass, 28.5% by mass, 29% by mass, 29.5% by mass, and 30% by mass, with a preferred range of 6% to 18% by mass, and a more preferred range of 7.5% to 18% by mass.

[0042] The cosmetic composition for forming double eyelids of the present invention may also contain a film-forming agent other than the polymer having a norbornane structure described later. Preferably, the film-forming agent is a polymer having a norbornane structure, and more preferably, a norbornane structure-containing silicone-modified polymer.

[0043] <Solvent> The solvent included in the cosmetic composition for forming double eyelids of the present invention is not particularly limited as long as it is safe for human skin and can dissolve or uniformly disperse the polymer having a norbornane structure and the other components described later. Examples of solvents include water, lower alcohol-based solvents, ether-based solvents, ketone-based solvents, ester-based solvents, volatile hydrocarbon oils, volatile silicone oils, polyols, and liquid oils that have film-forming properties and can form a polymer film having a norbornane structure by volatilizing or penetrating the skin.

[0044] Examples of lower alcohol-based solvents include ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, and benzyl alcohol. Examples of ether-based solvents include diethyl ether and tetrahydrofuran. Examples of ketone solvents include acetone and methyl ethyl ketone. Examples of ester solvents include methyl acetate, ethyl acetate, butyl acetate, and isobutyl acetate.

[0045] Examples of volatile hydrocarbon oils include paraffinic hydrocarbon oils such as n-decane, n-undecane, and n-dodecane; isoparaffinic hydrocarbon oils such as isodecane, isododecane, and hydrogenated polyisobutene; and cyclic paraffinic hydrocarbon oils such as cyclodecane and cyclododecane.

[0046] Examples of volatile silicone oils include linear dimethylpolysiloxanes such as hexamethyldisiloxane, octamethyltrisiloxane, and dimethylpolysiloxane; branched siloxanes such as methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane; and cyclic dimethylsiloxanes such as trisiloxane, cyclotetrasiloxane, cyclopentasiloxane, and cyclohexasiloxane.

[0047] Examples of polyols include dihydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, butylene glycol, and propanediol; trihydric alcohols such as glycerin and trimethylolpropane; tetrahydric alcohols such as diglycerin and erythritol; polyglycerins such as triglycerin; and sugars and sugar alcohols such as glucose, maltose, maltodose, sucrose, xylitol, sorbitol, malbitol, polyoxyethylene methyl glucoside, polyoxyethylene ethyl glucoside, and polyoxyethylene propylene glucoside.

[0048] As for the liquid oil, any oil commonly used in cosmetics is acceptable, such as liquid paraffin, light liquid isoparaffin, heavy liquid isoparaffin, mineral oil, squalane, α-olefin oligomer, polyisobutylene, polybutene, hydrogenated polyisobutene, hydrogenated polydecene, etc.; isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, tricyclodecanemethyl isononanoate, ethyl isostearate, isobutyl isostearate, isopropyl isostearate, 2-hexyldecyl isostearate, di-2-hexylhexyl succinate, bisethoxydiglycol succinate, lauric acid Hexyl, di(caprylic / capric acid)propanediol, neopentyl glycol diisononanoate, neopentyl glycol dicaprate, glyceryl monomyristate monostearate, glyceryl diisostearate, polyglyceryl diisostearate, propanediol diisostearate, trimethylolpropane triisostearate, glyceryl triisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, diisostearyl malate Octyldodecyl malate, glycerin fatty acid ester, octyldodecyl myristate, isopropyl myristate, 2-ethylhexyl palmitate, isopropyl palmitate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-hexylhexanoate, glyceryl tri-2-ethylhexanoate, octyldodecyl myristate, 2-hexyldecyl myristate, 2-hexyldecyl 2-ethylhexanoate, neopentyl glycol di-2-ethylhexanoate, hydroxystearyl Examples of ester oils include 2-ethylhexyl benzoate, caprylic / capric triglyceride, glyceryl trioctanoate, neopentyl glycol dioctanoate, octyl methoxycinnamate, 2-ethylhexyl paramethoxycinnamate, and propylene carbonate; ether oils such as cetyl dimethyl butyl ether and dicaprylyl ether; higher alcohols having linear or branched alkyl or alkenyl groups with 10 to 24 carbon atoms, such as lauryl alcohol, myristyl alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyldodecanol, and oleyl alcohol; silicone oils such as dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, polyether-modified silicone, acrylic-modified silicone, fluorine-modified silicone, and higher alcohol-modified organopolysiloxane; fluorine oils such as fluoropolyether and perfluoroalkyl ether silicone; and phenoxyethanol and tocopherol.

[0049] The solvent can be used individually or in combination of two or more types. Preferred solvents include at least one solvent selected from the group consisting of volatile hydrocarbon oils, volatile silicone oils, and liquid oils. More preferably, a mixed solvent of at least one solvent selected from the group consisting of volatile hydrocarbon oils and at least one solvent selected from the group consisting of volatile silicone oils and liquid oils is provided. Even more preferably, isododecane, trisiloxane, cyclopentasiloxane, squalane, isotridecyl isononanoate, and mixed solvents thereof are provided, and even more preferably, a mixed solvent of isododecane and at least one solvent selected from the group consisting of trisiloxane, cyclopentasiloxane, squalane, and isotridecyl isononanoate is provided, and even more preferably, isododecane is provided.

[0050] When a mixed solvent is used, its proportion is not particularly limited as long as it can dissolve or uniformly disperse the film-forming agent and other components described later, and has film-forming properties. From the viewpoint of solubility or dispersibility and film-forming properties, the proportion of volatile hydrocarbon oil contained in the mixed solvent is, for example, 40% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, 70% by mass or more, 75% by mass or more, 80% by mass or more, 85% by mass or more, 90% by mass or more, 95% by mass or more, 98% by mass or more, and 100% by mass, based on the total mass of the mixed solvent, preferably 80% by mass or more, more preferably 100% by mass.

[0051] <Other ingredients> The double eyelid-forming cosmetic composition of the present invention may contain additives used in double eyelid-forming cosmetics and eye area cosmetics, etc., to the extent that they do not impair the effects of the present invention. Examples of such additives include film-forming agents other than polymers having a norbornane structure, pigments, dyes, powders, preservatives, thickeners, surfactants, fragrances, and skin conditioning agents.

[0052] The film-forming agent other than polymers having a norbornane structure is not particularly limited, but is not particularly limited as long as it is commonly used in cosmetics for creating double eyelids or eye area cosmetics, for example, polyvinylpyrrolidone (PVP), PVP / dimethylaminoethyl methacrylate copolymer, PVP / eicosene copolymer, PVP / ethyl methacrylate / methacrylate copolymer, PVP / hexadecene copolymer, PVP / vinyl acetate copolymer, PVP / vinyl acetate / itaconic acid copolymer, styrene / PVP copolymer, and other PVP-based film-forming agents; alkyl acrylate / diacetone acrylamide copolymer, ethyl acrylate / acrylamide / acrylic acid copolymer, ethyl acrylate / butyl acrylate copolymer, ethyl acrylate / ethyl methacrylate copolymer, ethyl acrylate / methacrylate copolymer, ethyl acrylate / methyl methacrylate copolymer, octyl acrylate / vinyl acetate copolymer, octyl acrylate / styrene copolymer, butyl acrylate / vinyl acetate copolymer, butyl acrylate / hydroxymethacrylate copolymer, acrylic Examples include acrylic acid-based film-forming agents such as butyl methacrylate / methyl methacrylate copolymer, methoxyethyl acrylate / hydroxyethyl acrylate / butyl acrylate copolymer, lauryl acrylate / vinyl acetate copolymer, ethyl polyacrylate, butyl polyacrylate, and polystyrene acrylic acid resin; vinyl acetate-based film-forming agents such as polyvinyl acetate; methacrylic acid-based film-forming agents such as polymethyl methacrylate, methyl methacrylate / butyl acrylate / octylic acid acrylate, and vinylpyrrolidone diethyl sulfate / N,N'-dimethylaminomethacrylate copolymer; vinyl methyl ether-based film-forming agents such as vinyl methyl ether / ethyl maleate copolymer and vinyl methyl ether / butyl maleate copolymer; styrene-based film-forming agents such as styrene / methylstyrene / indene copolymer; alkyd resin-based film-forming agents such as cyclohexane-based alkyd resin; silicone-modified pullulans such as trimethylsiloxysilicate and tri(trimethylsiloxy)silylpropylcarbamic acid pullulan, silicone resin-based film-forming agents such as (acrylates / dimethicone) copolymer, and salts thereof.

[0053] Pigments are not particularly limited, but examples include metal oxides such as titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, Prussian blue, ultramarine blue, chromium oxide, and chromium hydroxide; metal complexes such as manganese violet and cobalt titanate; inorganic pigments such as carbon black; synthetic organic pigments such as Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, and Blue No. 404; natural organic pigments such as β-carotene, caramel, and paprika pigment, as well as alkoxysilane-treated products thereof.

[0054] The dyes are not particularly limited, but examples include azo dyes, quinoline dyes, xanthene dyes, triphenylmethane dyes, and anthraquinone dyes. Among these, azo dyes or anthraquinone dyes are preferred.

[0055] The powders are not particularly limited, but examples include inorganic powders such as talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, rose mica, biotite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate salts, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, and boron nitride; and organic powders such as polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, and cellulose powder.

[0056] The preservatives are not particularly limited, but examples include methylparaben and ethylparaben. ru. The skin conditioning agents are not particularly limited and include butylene glycol, pentylene glycol, and dipotassium glycyrrhizate.

[0057] The thickening agent is not particularly limited and includes, for example, polyvinyl alcohol, polyvinyl methyl ether, polyethylene glycol, sodium polyacrylate, polyethyl acrylate, polyacrylamide, acrylic acid / alkyl methacrylate copolymer, polyethyleneimine, cationic polymer, carboxyvinyl polymer, collagen, elastin, chitin, chitosan, carboxymethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carrageenan, xanthan gum, starch derivatives, kaolin, magnesium aluminum silicate, synthetic sodium silicate, synthetic aluminum silicate, and synthetic magnesium sodium silicate.

[0058] The surfactants are not particularly limited and include, for example, anionic surfactants such as fatty acid soaps, higher alkyl sulfate esters, and phosphate esters; cationic surfactants such as benzalkonium chloride; and nonionic surfactants such as propylene glycol fatty acid esters, hydrogenated castor oil derivatives, sorbitol fatty acid esters, glycerin fatty acid esters, fatty acid esters, alkyl ethers, ethylenediamine condensates, derivatives of castor oil and hydrogenated castor oil, beeswax and lanolin derivatives, sterols and hydrogenated sterols, propylene glycol fatty acid esters, alkylamines, fatty acid amides, sucrose fatty acid esters, alkylethoxydimethylamine oxide, and trioleyl phosphate.

[0059] The double eyelid-forming cosmetic of the present invention can be manufactured in the same manner as conventional double eyelid-forming cosmetics or eye area cosmetics, by dissolving or uniformly dispersing a film-forming agent and, if necessary, other components in a solvent. The film-forming agent and other components can be used in a state where they are already dissolved or uniformly dispersed in a solvent.

[0060] The dosage form of the double eyelid-forming cosmetic of the present invention can be the same as that of conventional double eyelid-forming cosmetics, and examples include liquid, emulsion, gel, paste, and cream forms. Examples of liquid forms include aqueous transparent liquids or aqueous dispersions using solvents such as water, lower alcohol solvents, or polyols as an aqueous base, or oily transparent liquids or oily dispersions using solvents such as ether solvents, ketone solvents, ester solvents, volatile hydrocarbon oils, volatile silicone oils, or liquid oils as an oily base. Furthermore, emulsions, gels, pastes, and creams may be either oil-in-water or water-in-oil types of the above-mentioned aqueous and oily bases. Preferably, an oily transparent liquid is used.

[0061] The method of using the double eyelid-forming cosmetic of the present invention is not particularly limited and can be used in the same way as conventional double eyelid-forming cosmetics or double eyelid-forming methods using double eyelid-forming tools. For example, with the eyelids free of wrinkles, such as when the eyes are closed, the double eyelid-forming cosmetic can be applied with a brush or the like to the area between the desired double eyelid line and the base of the eyelashes, and allowed to dry to form a film harder than the skin. When the eyes are opened, the eyelid folds at the boundary between the film and the upper eyelid, thus forming a double eyelid. Alternatively, for example, the double eyelid-forming cosmetic can be applied with a brush or the like to the area where a double eyelid is to be formed, and the formed film can be pressed with a pusher to create wrinkles. The wrinkles are then fixed by the adhesive film, thus forming a double eyelid. [Examples]

[0062] The present invention will be described more specifically below with reference to examples, but these examples represent only one aspect of the present invention, and the present invention is not limited to these examples.

[0063] The components used in the examples, as well as the abbreviations for each component in Tables 2 and 3 below, are as follows. (1) Film-forming agent (A) Polymer having a norbornane structure NBN-30-ID: (Norbornene / Tris(trimethylsiloxy)silylnorbornene) copolymer (Solid content obtained by drying "NBN-30-ID" manufactured by Shin-Etsu Chemical Co., Ltd. under reduced pressure at 50°C for 24 hours) (B) Polymers that do not have a norbornane structure TSPL-30-ID: Pullulan tri(trimethylsiloxy)silylpropylcarbamate (manufactured by Shin-Etsu Chemical Co., Ltd. as "TSPL-30-ID") KF-7312J: Trimethylsiloxysilicate (manufactured by Shin-Etsu Chemical Co., Ltd. as "KF-7312J") 9540B: ​​(Acrylates / Diacetone Acrylamide) Copolymer AMP (Manufactured by Go-O Chemical Industry Co., Ltd., "Plus Size L-9540B") PVP: Polyvinylpyrrolidone (Creajas K-90, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) (2) Solvent Isododecane: "Marukazol R" manufactured by Maruzen Petrochemical Co., Ltd. Ethanol: "Undenatured Ethanol" manufactured by Shinwa Alcohol Industry Co., Ltd. Trisiloxane: "KF96L-1cs" manufactured by Shin-Etsu Chemical Co., Ltd. Cyclopentasiloxane: "KF-995" manufactured by Shin-Etsu Chemical Co., Ltd. Squalane: "Sugar Squalane" manufactured by Nikko Chemicals Co., Ltd. Isotridecyl isononanoate: "Saracos 913" manufactured by Nisshin Oillio Group, Ltd.

[0064] (Example 1) NBN-30-ID was dried under reduced pressure at 50°C for 24 hours to obtain (norbornene / tris(trimethylsiloxy)silylnorbornene) copolymer. The (norbornene / tris(trimethylsiloxy)silylnorbornene) copolymer obtained with the composition shown in Table 2 below was dissolved in isododecane to prepare a cosmetic for forming double eyelids (DC1).

[0065] (Examples 2 to 12, Comparative Examples 1 to 5) The film-forming agent component was dissolved in a solvent to obtain double eyelid-forming cosmetics (DC2 to DC17) in the composition shown in Table 2 or Table 3 below.

[0066] Practicality evaluation test (double eyelid formation ability, film durability, and ease of use) Ten cosmetic evaluation panelists assessed DC1 through DC17 on the following aspects: their ability to create double eyelids with a folding mechanism, the durability of the film after 10 hours of application, and the feel of the product (non-stickiness, non-stiffness). The evaluation was made according to the evaluation criteria shown in Table 1 below. The evaluation results are shown in Tables 2 and 3 below.

[0067] [Table 1]

[0068] [Table 2]

[0069] [Table 3]

[0070] The results in Table 2 show that DC1 to DC8, which contain polymers having a norbornane structure as film-forming agents, are double eyelid-forming cosmetics that have excellent double eyelid-forming ability, film-holding properties, and a good feel when used. In contrast, DC13, which contains an acrylic acid polymer, had double eyelid-forming ability but poor film durability. Furthermore, DC16, which contains silicone-modified pullulan, and DC17, which contains silicone resin, were shown to have poor double eyelid-forming ability, film durability, and usability. Thus, it was shown that double eyelid-forming cosmetics that do not contain polymers with a norbornane structure as film-forming agents have inferior double eyelid-forming effects. Furthermore, DC14 showed poor double eyelid-forming ability and film durability, and DC15 showed inferior usability (non-stickiness). Therefore, it was shown that double eyelid-forming cosmetics in which the content of polymers having a norbornane structure is not in the range of 1% to 30% by mass based on the total mass of the double eyelid-forming cosmetic have an inferior double eyelid-forming effect.

[0071] The results in Table 3 show that DC9 to DC12, which contain polymers having a norbornane structure, are double eyelid-forming cosmetics that exhibit excellent double eyelid-forming effects, similar to DC1 to DC8, regardless of the type of solvent. [Industrial applicability]

[0072] This product provides a double eyelid-forming cosmetic that offers excellent double eyelid-forming ability, film retention, and a pleasant feel (non-sticky, non-stiff) without using natural rubber latex, which carries a risk of causing allergic reactions.

Claims

1. A cosmetic composition for forming double eyelids, comprising only a film-forming agent and a solvent, The film-forming agent comprises a norbornane structure-containing silicone-modified polymer, The content of the norbornane structure-containing silicone-modified polymer is 1% to 30% by mass based on the total mass of the double eyelid-forming cosmetic composition. Cosmetic product for creating double eyelids.

2. The cosmetic composition for forming double eyelids according to claim 1, wherein the solvent comprises at least one solvent selected from the group consisting of volatile hydrocarbon oils, volatile silicone oils, and liquid oils.

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