Solid oil-based cleansing cosmetics

Abstract

To provide a solid oily cleansing cosmetic which is compatible with a make-up cosmetic, excels in removal of makeup stains and hardly drips down while using a natural wax, causes less frictional feeling when compatibilized with a makeup cosmetic or during massaging, has a matte feeling and has a refreshing feeling after washing and is further excellent in moldability, storage stability and film formability when used.SOLUTION: There is provided a solid oily cleansing cosmetic comprising the following components (A) to (D): (A) 0.1 to 20 mass% of a natural wax based on 100 mass% of the cosmetic, (B) 0.1 to 20 mass% of an amide alcohol derivative based on 100 mass% of the cosmetic, (C) a liquid oil containing an ester oil in which a content of the ester oil is 35 mass% or more in 100 mass% of the liquid oil and (D) 5 to 40 mass% of a nonionic surfactant having an HLB value of 5 to 13 based on 100 mass% of the cosmetic.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a solid oil-based cleansing cosmetic. [Background technology]

[0002] In recent years, makeup cosmetics with excellent water and oil resistance have been developed, significantly improving makeup wear. Therefore, oil-based cleansing cosmetics that blend well with makeup cosmetics and are excellent at removing dirt are used during cleansing. In particular, among oil-based cleansing cosmetics, liquid oil-based cleansing cosmetics are excellent in blending well with makeup cosmetics and are also excellent in terms of makeup removal. However, liquid oil-based cleansing cosmetics have the problem of low viscosity and prone to dripping during use. Furthermore, when blending with makeup cosmetics or during use, the rubbing action is easily transferred directly to the skin, making massage difficult and causing strong strain and irritation to the skin.

[0003] In order to improve the dripping of liquid oil-based cleansing cosmetics, for example, oil-based cleansing cosmetics thickened with a high-melting-point polyethylene wax, which is a synthetic wax derived from petroleum and petrochemical products, have been proposed. However, since high-melting-point polyethylene wax is considered to be a type of plastic raw material that has become a problem in recent years as an environmental burden, the use of high-melting-point polyethylene wax is undesirable.

[0004] From this perspective, in recent years, for example, oily cosmetic compositions using sunflower wax, which is a natural wax, have become known (Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Special Publication No. 2014-502623 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when the present inventors attempted to obtain a solid oil-based cleansing cosmetic using sunflower wax as a solid oil, they were unable to obtain a cleansing cosmetic that blended well with makeup cosmetics, was excellent at removing makeup stains, but was not prone to dripping, had little friction when massaging into makeup cosmetics, and provided a refreshing feeling after cleansing.

[0007] In addition, in providing a solid preparation, it is also important to provide a solid oil-based cleansing cosmetic that is excellent in moldability and storage stability.

[0008] Furthermore, in recent years, there has been a growing trend toward luxury products, and a tendency for thick preparations that cover the skin upon application to be preferred as they are perceived as being luxurious. For example, it would be desirable to have a cosmetic product that has low transmittance and a luxurious feel, that is, a cleansing cosmetic product that has high film-forming ability upon use. From this perspective, too, although high-melting-point polyethylene wax has traditionally been used as a solid oil, as mentioned above, it is desirable to have a cosmetic product with high film-forming ability that does not rely on high-melting-point polyethylene wax in light of the desire to reduce the burden on the environment.

[0009] Therefore, an object of the present disclosure is to provide a solid oil-based cleansing cosmetic that uses natural waxes but blends well with makeup cosmetics, is excellent at removing makeup stains but is less likely to drip, causes less friction when blending with makeup cosmetics or when massaging, and has a matte finish but leaves a refreshing feeling after cleansing.Another object of the present disclosure is to provide a solid oil-based cleansing cosmetic that is excellent in moldability, storage stability, and film-forming ability during use. [Means for solving the problem]

[0010] The present inventors have conducted extensive research to develop cosmetics that can solve the above-mentioned problems, and have found that by using sunflower wax as a solid oil, in combination with an amide alcohol derivative, a liquid oil, and a nonionic surfactant with a specific HLB, and by setting the content of ester oil to 35% by mass or more of the total amount of liquid oil, it is possible to obtain a solid oil-based cleansing cosmetic that is compatible with makeup cosmetics, has excellent dirt removal properties, is less likely to drip, has excellent frictional feel during massage, a matte finish, a refreshing feel after cleansing, and film-forming properties, and is also excellent in terms of moldability as a solid preparation and storage stability.The present invention was completed as a result of further research based on this finding, and includes the following aspects. Item 1. A solid oil-based cleansing cosmetic comprising the following components (A) to (D): (A) natural wax in an amount of 0.1 to 20% by mass per 100% by mass of the cosmetic; (B) an amide alcohol derivative in an amount of 0.1 to 20% by mass per 100% by mass of the cosmetic; (C) A liquid oil containing an ester oil, wherein the content of the ester oil in 100% by mass of the liquid oil is 35% by mass or more; (D) A nonionic surfactant having an HLB value of 5 to 13 is contained in an amount of 5 to 40% by mass per 100% by mass of the cosmetic. Item 2. The solid oil-based cleansing cosmetic according to Item 1, wherein the natural wax is at least one selected from the group consisting of sunflower wax, Japan wax, candelilla wax, carnauba wax, rice bran wax, beeswax, montan wax, and microcrystalline wax. Item 3. The solid oil-based cleansing cosmetic according to Item 1 or 2, wherein the amido alcohol derivative is N-oleylhydroxyhexanamide. Item 4. The solid oil-based cleansing cosmetic according to any one of Items 1 to 3, further comprising 0.1 to 20% by mass per 100% by mass of the cosmetic of at least one selected from the group consisting of the following components (E1) and (E2): (E1) A hydrocarbon oil having a melting point of 40°C or higher and lower than 60°C, which is a linear hydrocarbon having 20 to 30 carbon atoms obtained by dehydrating, distilling, and hydrogenating a linear alcohol derived from a plant; (E2) A glycerin fatty acid triester that is solid at 25°C. [Effects of the Invention]

[0011] According to the present disclosure, it is possible to provide a solid oil-based cleansing cosmetic that blends well with makeup cosmetics, is excellent at removing dirt, is resistant to dripping, provides an excellent feeling of friction when massaging with makeup cosmetics, has a matte finish, and leaves a refreshing feeling after cleansing, and is also excellent in terms of moldability, storage stability, and film-forming properties. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present disclosure provides a solid oil-based cleansing cosmetic preparation characterized by containing the following components (A) to (D): (A) natural wax in an amount of 0.1 to 20% by mass per 100% by mass of the cosmetic; (B) an amide alcohol derivative in an amount of 0.1 to 20% by mass per 100% by mass of the cosmetic; (C) A liquid oil containing an ester oil, wherein the content of the ester oil in 100% by mass of the liquid oil is 35% by mass or more; (D) A nonionic surfactant having an HLB value of 5 to 13 is contained in an amount of 5 to 40% by mass per 100% by mass of the cosmetic.

[0013] Component (A) The solid oil-based cleansing cosmetic composition of the present disclosure contains natural wax. Wax in this field can be defined as, for example, "an organic substance that is solid at room temperature and becomes liquid when heated," and can be roughly classified into two types: natural wax and synthetic wax. In this disclosure, natural wax refers to the natural wax in this category.

[0014] In the present disclosure, the natural wax is not limited as long as it can be applied to the skin as a cosmetic ingredient, and does not limit the present disclosure. Examples of natural waxes include plant waxes such as Japan wax, candelilla wax, carnauba wax, rice bran wax, and sunflower wax (sunflower seed wax), animal waxes such as beeswax, mineral waxes such as montan wax, and petroleum waxes such as microcrystalline wax. Although not limiting the present disclosure, preferred examples of natural waxes include plant waxes, animal waxes, and mineral waxes, more preferably plant waxes, and even more preferably sunflower wax. Each of these may be used alone, or two or more may be used in combination. In the present disclosure, the wax is an oil (solid oil) that is solid at room temperature (25°C). Typically, natural waxes preferably have a melting point of 40°C or higher, more preferably a melting point of 50 to 90°C, and even more preferably a melting point of 70 to 80°C.

[0015] Although not limiting the present disclosure, as an example, the melting point of Japan wax is preferably 40 to 60°C, more preferably 50 to 55°C. Similarly, as an example, the melting point of candelilla wax is preferably 55 to 80°C, more preferably 68 to 72°C. Similarly, as an example, the melting point of carnauba wax is preferably 70 to 95°C, more preferably 80 to 86°C. Similarly, as an example, the melting point of rice bran wax is preferably 70 to 90°C, more preferably 78 to 83°C. Similarly, as an example, the melting point of sunflower wax is preferably 60 to 85°C, more preferably 70 to 80°C.

[0016] Similarly, as an example, the melting point of beeswax is preferably 55 to 70° C., more preferably 60 to 65° C. Similarly, as an example, the melting point of montan wax is preferably 65 to 90° C., more preferably 78 to 83° C. Similarly, as an example, the melting point of microcrystalline wax is preferably 60 to 110° C., more preferably 70 to 90° C.

[0017] In this disclosure, the melting point is a value measured in accordance with the Quasi-drug Ingredient Standards 2006, General Test Method, Melting Point Measurement Method No. 2 (June 30, 2009).

[0018] Although not limiting the present disclosure, examples of sunflower wax include wax sold by Koster Keunen under the name Sunflower Wax and wax sold by Toa Kasei Co., Ltd. under the name TOWAX-6F2.

[0019] The content of natural wax in the solid oil-based cleansing cosmetic composition of the present disclosure is, for example, 0.1 to 20% by mass, preferably 1 to 15% by mass, and more preferably 1 to 10% by mass.

[0020] Ingredient (B) The solid oil-based cleansing cosmetic of the present disclosure contains an amide alcohol derivative. The amide alcohol derivative is not limited as long as it is a conventionally known amide alcohol derivative, and examples thereof include derivatives in which a hydrocarbon chain group is substituted on the nitrogen of an amide alcohol (e.g., a compound represented by the following general formula (I)), and derivatives in which the hydroxyl group is further esterified (e.g., a compound represented by the following general formula (II)).

[0021] General formula (I) [ka] [In the formula, R1 represents a hydrocarbon group having 6 to 22 carbon atoms. R2 represents a hydrogen atom or a hydrocarbon group having 6 to 22 carbon atoms. R3 represents a divalent hydrocarbon group having 2 to 21 carbon atoms. The hydrocarbon groups represented by R1, R2, and R3 may each independently be substituted with at least one group selected from the group consisting of a hydroxyl group, an aryl group, an amino group, an amide group, a carbonyl group, an acyl group, an imidazole group, and a silanol group.

[0022] General formula (II) [ka] wherein R1, R2 and R3 are the same as defined above. R4 represents a hydrocarbon group having 5 to 42 carbon atoms, which may be substituted with at least one group selected from the group consisting of a hydroxyl group, an aryl group, an amino group, an amide group, a carbonyl group, an acyl group, an imidazole group, and a silanol group.

[0023] In the general formula (I) and the general formula (II), R, R 2、 The hydrocarbon group represented by R3 may be straight-chain, branched-chain, or cyclic, and may be saturated or unsaturated.

[0024] Although not limiting the present disclosure, preferred examples of the hydrocarbon group having 6 to 22 carbon atoms represented by R1 and R2 each independently include a linear or branched alkyl group having 6 to 22 carbon atoms, a linear or branched alkenyl group having 6 to 22 carbon atoms, and a linear or branched alkynyl group having 6 to 22 carbon atoms. The number of carbon atoms is preferably 10 to 20, more preferably 12 to 20. The number and positions of double bonds in the alkenyl group are not limited, and the number of double bonds is preferably 1 to 3, more preferably 1 or 2. The number and positions of triple bonds in the alkynyl group are not limited, and the number of triple bonds is preferably 1 to 3, more preferably 1 or 2.

[0025] As described above, the hydrocarbon groups of R1 and R2 may each independently be substituted with at least one group selected from the group consisting of a hydroxyl group, an aryl group, an amino group, an amide group, a carbonyl group, an acyl group, an imidazole group, and a silanol group. Thus, the hydrocarbon groups of R1 and R2 may be substituted or unsubstituted, but preferably, both R1 and R2 are unsubstituted hydrocarbon groups.

[0026] Although not limiting the present disclosure, preferred examples of the hydrocarbon group having 2 to 21 carbon atoms for R3 include a linear or branched alkyl group having 2 to 21 carbon atoms, a linear or branched alkenyl group having 2 to 21 carbon atoms, and a linear or branched alkynyl group having 2 to 21 carbon atoms. The number of carbon atoms is preferably 2 to 15, more preferably 2 to 10, and even more preferably 3 to 8. In the alkenyl group, the number and positions of double bonds are not limited, and the number of double bonds is preferably 1 to 3, more preferably 1 or 2. In the alkynyl group, the number and positions of triple bonds are not limited, and the number of triple bonds is preferably 1 to 3, more preferably 1 or 2.

[0027] As described above, the hydrocarbon group of R3 may be substituted with at least one group selected from the group consisting of a hydroxyl group, an aryl group, an amino group, an amide group, a carbonyl group, an acyl group, an imidazole group, and a silanol group. Thus, the hydrocarbon group of R3 may be substituted or unsubstituted, but is preferably an unsubstituted hydrocarbon group.

[0028] The compound represented by general formula (I) is not limited thereto, but preferably, in the formula, R1 is an unsubstituted linear alkyl group having 12 to 20 carbon atoms, an unsubstituted linear alkenyl group having 12 to 20 carbon atoms (one or two double bonds), or an unsubstituted linear alkynyl group having 12 to 20 carbon atoms (one or two triple bonds); R2 is a hydrogen atom; and R3 is an unsubstituted linear alkyl group having 3 to 8 carbon atoms, an unsubstituted linear alkenyl group having 3 to 8 carbon atoms (one or two double bonds), or an unsubstituted linear alkynyl group having 3 to 8 carbon atoms (one or two triple bonds). Furthermore, more preferably, in the compound represented by general formula (I), R1 is exemplified as an unsubstituted linear alkenyl group having 12 to 20 carbon atoms (one double bond), R2 is exemplified as a hydrogen atom, and R3 is exemplified as an unsubstituted linear alkyl group having 3 to 8 carbon atoms.

[0029] Furthermore, in general formula (II), the hydrocarbon group represented by R4 may be linear, branched, or cyclic, and may be saturated or unsaturated. While not limiting the present disclosure, preferred examples of the hydrocarbon group having 5 to 42 carbon atoms represented by R4 include linear or branched alkyl groups having 5 to 42 carbon atoms, linear or branched alkenyl groups having 5 to 42 carbon atoms, and linear or branched alkynyl groups having 5 to 42 carbon atoms. The number and positions of double bonds in the alkenyl group are not limited, and preferably the number of double bonds is 1 to 3, more preferably 1 or 2. The number and positions of triple bonds in the alkynyl group are not limited, and preferably the number of triple bonds is 1 to 3, more preferably 1 or 2.

[0030] As described above, the hydrocarbon group of R4 may be substituted with at least one group selected from the group consisting of a hydroxyl group, an aryl group, an amino group, an amide group, a carbonyl group, an acyl group, an imidazole group, and a silanol group. Thus, the hydrocarbon group of R4 may be substituted or unsubstituted, but is preferably an unsubstituted hydrocarbon group.

[0031] In the present disclosure, the amido alcohol derivative is not limited thereto, but more preferably, N-oleylhydroxyhexanamide, N-stearylhydroxyhexanamide, etc. are exemplified. For example, N-oleylhydroxyhexanamide is commercially available as Aminactol OLH (manufactured by Kokyu Alcohol Kogyo Co., Ltd.). Although not limiting the present disclosure, N-oleylhydroxyhexanamide is a compound represented by general formula (I) (R1 is a linear alkenyl group having 18 carbon atoms (unsubstituted, with one double bond), R2 is a hydrogen atom, and R3 is a linear alkylene group having 5 carbon atoms (unsubstituted)).

[0032] In the present disclosure, the amide alcohol derivatives may be used alone or in combination of two or more.

[0033] In the solid oil-based cleansing cosmetic composition of the present disclosure, the content of the amido alcohol derivative is, for example, 0.1 to 20% by mass, and preferably 1 to 15% by mass.

[0034] Ingredients (C) The solid oil-based cleansing cosmetic of the present disclosure contains a liquid oil. The liquid oil is not particularly limited as long as it is an oil that has fluidity at room temperature (25°C). The solid oil-based cleansing cosmetic of the present disclosure also contains an ester oil as the liquid oil.

[0035] Examples of liquid oils include, but are not limited to, isocetyl isostearate, ethylene glycol di-2-ethylhexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, pentaerythryl tetraoctanoate, glyceride tri-2-heptylundecanoate, diisobutyl adipate, 2-hexyldecyl sebacate, glycerin trioctanoate, glycerin triisopalmitate, and diisobutyl malate. Sostearyl, isopropyl myristate, 2-octyldodecyl oleate, hexyldecyl dimethyloctanoate, 2-hexyldecyl myristate, myristyl myristate, octyldodecyl myristate, isopropyl palmitate, ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, butyl stearate, isocetyl stearate, decyl oleate, dodecyl oleate, oleyl oleate, myristyl lactate, cetyl lactate, 12-hydroxystearic acid copolymer Resteryl, castor oil fatty acid methyl ester, 2-ethylhexyl succinate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, diisopropyl sebacate, di-2-ethylhexyl sebacate, neopentyl glycol dicaprate, neopentyl glycol dioctanoate, glycerin tri-2-ethylhexanoate, caprylic / capric triglyceride, glycerin trimyristate, glycerin tri-2-heptylundecanoate, trimethylolpropane triisostearate, tri-2-ethylhexanoate Ester oils such as glyceryl hexanoate, glycerin trioctanoate, glycerin triisopalmitate, triglycerin, isopropyl myristate, isopropyl palmitate, hexyl laurate, oleyl oleate, decyl oleate, octyldodecyl myristate, hexyldecyl dimethyloctanoate, diethyl phthalate, dibutyl phthalate, dioctyl succinate, fluorine-modified ester oil, trioctanoin, tripropylene glycol dipivalate, isodecyl isononanoate, and isotridecyl isononanoate;Animal and vegetable oils such as linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, apricot kernel oil, cinnamon oil, jojoba oil, grape oil, sunflower oil, almond oil, rapeseed oil, sesame oil, wheat germ oil, rice germ oil, rice bran oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, sage oil, Roman chamomile oil, clove oil, lavender oil, carrot oil, egg yolk oil, beef leg fat, and liver oil; hydrocarbon oils such as α-olefin oligomers, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, synthetic squalane, vegetable squalane, polybutene, and hydrogenated polyisobutene; dimethylpolysiloxane Examples of suitable silicone oils include linear silicones such as octamethylcyclotetrasiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; silicone oils such as amino-modified silicone oil, polyether-modified silicone oil, carboxy-modified silicone oil, alkyl-modified silicone oil, ammonium salt-modified silicone oil, and fluorine-modified silicone oil; higher fatty acids such as oleic acid, tall oil fatty acid, and isostearic acid; and higher alcohols such as lauryl alcohol, oleyl alcohol, isostearyl alcohol, octyldodecanol, and jojoba alcohol.

[0036] Although not limiting the present disclosure, more preferred examples of liquid oils include ester oils such as ethylhexyl palmitate, caprylic / capric triglyceride, isodecyl isononanoate, and isotridecyl isononanoate; animal and vegetable oils such as vegetable squalane, jojoba oil, carrot oil, macadamia nut oil, and olive oil; silicone oils such as methylphenylpolysiloxane; and higher alcohols such as jojoba alcohol.

[0037] Although not limiting the present disclosure, for example, the liquid oil may preferably be a mixture of ester oil and at least one selected from the group consisting of animal and vegetable oils, hydrocarbon oils, silicone oils, higher fatty acids, and higher alcohols. Also, although not limiting the present disclosure, for example, the liquid oil may preferably be a mixture of ester oil alone.

[0038] The cosmetic composition of the present disclosure is not limited as long as it contains an ester oil as the liquid oil, and the liquid oil may be used alone or in combination of two or more types.

[0039] Furthermore, the solid oil-based cleansing cosmetic of the present disclosure contains liquid oil as described above, and the content of ester oil in the total amount of the liquid oil is 35% by mass or more. Although not limited thereto, the content of ester oil in the total amount of the liquid oil in the cosmetic is preferably 40% by mass or more, more preferably 45 to 100% by mass, and even more preferably 55 to 100% by mass.

[0040] Although not limited thereto, the content of liquid oil in the cosmetic composition of the present disclosure is preferably 40 to 85% by mass, more preferably 50 to 80% by mass, and even more preferably 55 to 75% by mass.

[0041] Ingredients (D) The solid oil-based cleansing cosmetic composition of the present disclosure contains a nonionic surfactant having an HLB value of 5 to 13. Although not limiting the present disclosure, examples of the anionic surfactant include nonionic surfactants having an HLB value of more preferably 7 to 12.5, and even more preferably 8 to 12.

[0042] Examples of nonionic surfactants having an HLB value of 5 to 13 include, but are not limited to, glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ethers, fatty acid polyoxyethylene glyceryl, polyether-modified silicones, and polyglycerin-modified silicones.

[0043] Specific examples of nonionic surfactants include, but are not limited to, polyglyceryl-2 stearate (HLB: 5), polyglyceryl-2 oleate (HLB: 5.5), glyceryl-2 triisostearate (HLB: 5.5), polyglyceryl-4 stearate (HLB: 6), polyglyceryl-4 oleate (HLB: 6), polyglyceryl-10 tristearate (HLB: 7.5), and triolein. Polyglyceryl-10 Acetate (HLB: 7), Sorbitan Palmitate (HLB: 6.7), Sorbitan Isostearate (HLB: 5), PEG-5 Hydrogenated Castor Oil (HLB: 6), PEG-10 Hydrogenated Castor Oil (HLB: 6.5), Ceteth-2 (HLB: 8), Steareth-2 (HLB: 8), Oleth-2 (HLB: 7.5), Beheneth-5 (HLB: 7), (C12-14) Pareth-3 (HLB: 8), Di(C12-15) ) Pareth-2 phosphate (HLB: 6.5), Tri(C12-15) Pareth-2 phosphate (HLB: 7), Di(C12-15) Pareth-6 phosphate (HLB: 8), PEG-10 glyceryl tristearate (HLB: 5), PEG-10 glyceryl triisostearate (HLB: 5), PEG-10 glyceryl trioleate (HLB: 5), PEG-10 glyceryl isostearate (HLB: 8), diisostearin Examples include PEG-10 glyceryl isostearate (HLB: 7), PEG-5 glyceryl isostearate (HLB: 8), PEG-6 glyceryl isostearate (HLB: 8), PEG-20 glyceryl triisostearate (HLB: 8), polyglycerol caprate (HLB: 9.5), PEG-30 glyceryl triisostearate (HLB: 10), and PEG-20 glyceryl isostearate (HLB: 12).

[0044] Although not limiting the present disclosure, examples of polyoxyethylenes constituting polyoxyethylene hydrogenated castor oil include those having an average number of moles of ethylene oxide (EO) added of preferably about 10 to 40, more preferably about 20 to 30. Examples of polyoxyethylenes constituting polyoxyethylene alkyl ethers, such as polyoxyethylene cetyl ether, include those having an average number of moles of ethylene oxide added of preferably about 5 to 9, more preferably about 5.5 to 7. Examples of polyoxyethylenes constituting fatty acid polyoxyethylene glyceryl include those having an average number of moles of ethylene oxide added of preferably about 3 to 30, more preferably about 3 to 20, and even more preferably about 5 to 15.

[0045] More preferred examples of the nonionic surfactant include fatty acid polyoxyethylene glyceryl, and even more preferred examples include polyoxyethylene glyceryl isostearate and polyoxyethylene glyceryl triisostearate. Of these, even more preferred examples include nonionic surfactants in which the average number of moles of ethylene oxide added in each of polyoxyethylene glyceryl isostearate and polyoxyethylene glyceryl triisostearate is 6 to 30.

[0046] The nonionic surfactants having an HLB value of 5 to 13 may be used singly or in combination of two or more kinds.

[0047] Here, the HLB (hydrophile-lipophile balance) value generally indicates the affinity of a surfactant to water and oil, and is a value according to the Griffin method.

[0048] In the cosmetic, the nonionic surfactant having an HLB value of 5 to 13 is contained in an amount of 5 to 40 mass %, preferably 10 to 35 mass %, for example.

[0049] Components (E1) and (E2) The solid oil-based cleansing cosmetic preparation of the present disclosure may further contain at least one selected from the group consisting of the following components (E1) and (E2). (E1) A hydrocarbon oil having a melting point of 40°C or higher and lower than 60°C, which is a straight-chain hydrocarbon having 20 to 30 carbon atoms obtained by dehydrating, distilling, and hydrogenating a straight-chain alcohol derived from a plant; (E2) A glycerin fatty acid triester that is solid at 25°C.

[0050] Although not limiting the present disclosure, examples of component (E1) include those having a carbon number of preferably 20 to 26, more preferably 22 to 24. Although not limiting the present disclosure, examples of component (E1) include docosane. Although not limiting the present disclosure, examples of docosane include PARAFOL22-95 sold by Sasol. Component (E1) may be used alone or in combination of two or more.

[0051] Although not limiting the present disclosure, preferred examples of component (E2) include monoglycerin fatty acid triester. Furthermore, while not limiting the present disclosure, preferred examples of fatty acids constituting the glycerin fatty acid triester include fatty acids having 10 to 22 carbon atoms, more preferably fatty acids having 12 to 20 carbon atoms. The fatty acids may be saturated or unsaturated fatty acids, and in the case of unsaturated fatty acids, the number of double bonds between carbon atoms is not limited, and may be, for example, 1 to 4, preferably 1 to 3, and more preferably 1 or 2. Furthermore, the fatty acids may be linear or branched.

[0052] Examples of fatty acids constituting the glycerin fatty acid triester include, but are not limited to, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, behenic acid, etc., as well as fatty acids containing such fatty acids, such as coconut oil fatty acid, palm kernel oil fatty acid, olive oil fatty acid, macadamia nut oil fatty acid, rapeseed oil fatty acid, etc. These may be used alone or in combination of two or more.

[0053] Although not limiting the present disclosure, specific examples of component (E2) include glycerin trimyristate, glycerin tristearate, and glycerin tribehenate. Examples of glycerin tristearate and glycerin trimyristate include Esteride GS and Esteride GM, both sold by National Mimatsu Co., Ltd. Examples of glycerin tribehenate include SYNCROWAX HRC, both sold by Croda Japan Co., Ltd. Furthermore, mixed fatty acid esters such as HS OIL G-AP, both sold by National Mimatsu Co., Ltd., can also be used. Component (E2) may be used alone or in combination of two or more.

[0054] When the solid oil-based cleansing composition of the present disclosure contains at least one selected from the group consisting of components (E1) and (E2), the content thereof may be set as appropriate. However, from the viewpoint of further improving film-forming properties, the total content thereof is, for example, preferably 0.1 to 20 mass%, and more preferably 1 to 10 mass%, of the cosmetic.

[0055] The solid oil-based cleansing cosmetic of the present disclosure may further contain any other components as long as they do not impede the effects of the present disclosure.Examples of such other components include oil gelling agents such as dextrin fatty acid esters, inulin fatty acid esters, etc., solid higher fatty acids such as behenic acid, solid higher alcohols such as behenyl alcohol, powders, moisturizing agents, plant extracts, vitamins, antioxidants, preservatives, UV absorbers, anti-inflammatory agents, insect repellents, physiologically active ingredients, fragrances, colorants, etc.Such other components may be used alone or in combination of two or more, and the amount of each may be appropriately determined within the range that does not impede the effects of the present disclosure.

[0056] Furthermore, although not limiting the present disclosure, as can be seen from the examples described below, according to the present disclosure, even when a high-melting-point polyethylene wax is not used as the solid oil, it is possible to provide a solid oil-based cleansing cosmetic that is excellent in terms of ease of blending with makeup cosmetics, lack of dripping, etc. From this perspective, although not limiting the present disclosure, examples of preferred embodiments of the solid oil-based cleansing cosmetic of the present disclosure include those in which the content of high-melting-point polyethylene wax in the cosmetic is 5% by mass or less, 0 to 4% by mass or less, or 0 to less than 1% by mass.

[0057] The formulation of the solid oil-based cleansing cosmetic of the present disclosure is solid, i.e., a cleansing cosmetic that does not have fluidity at room temperature (25°C) and normal pressure (1 atmosphere), and its shape may be any of a rod, a plate, a product poured into a container, etc., and may be appropriately set depending on the purpose. Furthermore, since the cosmetic of the present disclosure is oil-based, the water content in the cosmetic is preferably less than 3% by mass, more preferably 0 to less than 1% by mass.

[0058] Furthermore, although not limiting the present disclosure, one embodiment of the solid oil-based cleansing cosmetic composition of the present disclosure may, for example, contain the components (A), (B), (C), and (D), and the content (total amount) of these components in the composition may be 60 to 100% by mass, 70 to 100% by mass, 80 to 100% by mass, 90 to 100% by mass, 95 to 100% by mass, 99 to 100% by mass, 99.6 to 100% by mass, etc.

[0059] Furthermore, although not limiting the present disclosure, one embodiment of the solid oil-based cleansing cosmetic composition of the present disclosure includes, for example, a composition containing the components (A), (B), (C), and (D) and at least one selected from the group consisting of the component (E1) and the component (E2), wherein the content (total amount) of these components in the composition is 60 to 100 mass%, 70 to 100 mass%, 80 to 100 mass%, 90 to 100 mass%, 95 to 100 mass%, 99 to 100 mass%, 99.6 to 100 mass%, etc.

[0060] The solid oil-based cleansing cosmetic of the present disclosure can be produced by appropriately mixing the components (A), (B), (C), and (D), if necessary, the component (E1) and / or the component (E2), and further, if necessary, the other components, in the amounts described above, followed by solidification. The order in which these components are mixed is not particularly limited. Furthermore, although this disclosure is not limited thereto, the mixing can be carried out under temperature conditions that generally allow each component to have fluidity, for example, in order to achieve uniform mixing, and the solidification can be carried out at a temperature at which the resulting mixture solidifies (e.g., room temperature (25°C)).

[0061] The solid oil-based cleansing cosmetic composition of the present disclosure is not limited as long as it can be applied to the skin (including the scalp, mucous membranes, etc.) The cosmetic composition can be used as a cleansing composition used to remove skin dirt such as sebum, sweat, dust, dirt in pores, foundation, lipstick, sunscreen, etc., and is particularly preferably used as a cleansing composition used to wash away makeup cosmetics such as foundation and lipstick.

[0062] The solid oil-based cleansing cosmetic of the present disclosure can be applied to skin in the same manner as conventionally known cleansing cosmetic.Not limited to this, but as an example, the cosmetic can be used by directly applying an appropriate amount, or by contacting it with a liquid such as water as needed, and then sliding it on the skin.The amount of application and the number of times of use of the cosmetic are not particularly limited, and for example, the cosmetic can be used in the same manner as conventionally known skin cleansing cosmetic.In addition, the cosmetic of the present disclosure can be applied to skin, and can be washed off with water, or can be wiped off with cotton or the like, and is not limited.

[0063] According to the present disclosure, it is possible to provide a solid oil-based cleansing cosmetic that has the advantages of being compatible with makeup cosmetics, easily removing dirt, not easily dripping, and having an excellent matte finish and refreshing feeling after cleansing, while also reducing the sense of friction during massage, thereby reducing the burden on the skin when rubbed, and furthermore, is excellent in terms of moldability, storage stability, and film-forming properties. [Example]

[0064] The present disclosure will be described in more detail below with reference to examples and comparative examples, but the present disclosure is not limited thereto. In the tables, the content of each component is expressed in mass %.

[0065] Preparation of oil-based cleansing cosmetics (Examples 1 to 10, Comparative Examples 1 to 8, and Reference Example 1) Oil-based cleansing cosmetics were prepared according to the compositions shown in Tables 1 and 2 below. Specifically, the components shown in Tables 1 and 2 were mixed and dissolved at 95 to 100°C, and 50 g of the resulting mixture was poured into a container and allowed to stand at room temperature (25°C) to cool, yielding solid oil-based cleansing cosmetics (Examples 1 to 10, Comparative Examples 2 to 8, and Reference Example 1). The cosmetic of Reference Example 1 is a solid oil-based cleansing cosmetic that does not contain any natural wax but instead contains a synthetic wax (high-melting point polyethylene wax in the table), and was prepared as a reference example (conventional product).

[0066] In Table 2, the cosmetic of Comparative Example 1 is a liquid oil-based cleanser, which was prepared by mixing the ingredients shown in Comparative Example 1 in Table 2 at 95 to 100°C, pouring 50 g of the resulting mixture into a container, and leaving it at room temperature.

[0067] The obtained oil-based cleansing cosmetics were evaluated for compatibility with makeup cosmetics, dripping, dirt removal, matte feel during use, frictional feel during massage, and refreshing feel after cleansing according to the following procedures. The cleansing cosmetics were also evaluated for moldability, storage stability, film-forming ability, and cleansing power according to the following procedures.

[0068] Evaluation Procedure The oil-based cleansing cosmetics prepared as described above were used by 20 expert panelists, who conducted the following evaluations. The panelists applied 0.1 g of commercially available lipstick evenly to their skin (3 cm x 3 cm). One hour after application, they took 2 g of the oil-based cleansing cosmetics on their fingers and massaged it evenly into the lipstick for one minute, then rinsed it off with water (25°C). During this process, the panelists evaluated the following criteria: "ease of blending with makeup cosmetics," "drippiness," "matt feeling during use," "removal of dirt," "friction during massage," and "refreshing feeling after cleansing."

[0069] · Easy to mix with makeup The cleansing cosmetic was used to evaluate the compatibility with the makeup cosmetic 20 seconds after the start of the massage. Specifically, if the makeup color transfer to the cleansing cosmetic was equal to or greater than that of Reference Example 1, it was rated as "easy to adapt," and if the makeup color transfer was worse than that of Reference Example 1, it was rated as "difficult to adapt," and the evaluation was made on a four-point scale according to the following criteria. In this evaluation, the panelists were compared in advance to standardize the criteria. Similarly, in each evaluation described below, the panelists were compared in advance to standardize the criteria.

[0070] <Evaluation criteria> ◎: Very good (15 or more panelists answered that it was easy to blend in) ○: Good (10 to 15 panelists answered that it was easy to blend in) △: Somewhat unfamiliar (5 to less than 10 panelists answered that it was easy to get used to) ×: Bad (less than 5 panelists answered that it was easy to get used to)

[0071] · Dripping Dripping was evaluated after a one-minute massage using a cleansing cosmetic. Specifically, if the cleansing cosmetic remained on the skin without dripping (running off), it was rated as "no dripping," and if liquid oil was dripping, it was rated as "dripping," and the evaluation was made on a four-point scale according to the following criteria.

[0072] <Evaluation criteria> ◎: Very good (15 or more panelists answered that there was no dripping) ○: Good (10 to 15 panelists answered that there was no dripping) △: Slightly bad (5 to 10 panelists did not experience dripping) ×: Bad (less than 5 panelists experienced no dripping)

[0073] ·Removes dirt After massaging with the cleansing cosmetic and rinsing, the makeup remaining on the skin was evaluated. Specifically, when the makeup remaining was equal to or less than that of the cleansing cosmetic of Reference Example 1, it was evaluated as "good at removing dirt," and when it was inferior (more), it was evaluated as "poor at removing dirt," and the evaluation was made on a four-point scale according to the following criteria.

[0074] <Evaluation criteria> ◎: Very good (15 or more panelists answered that it removed dirt well) ○: Good (10 to 15 panelists answered that it removed dirt well) △: Slightly poor (5 to 10 panelists said it removed dirt well) ×: Poor (less than 5 panelists said that the stain removal was good)

[0075] -Matte finish when used The matte feeling was evaluated 20 seconds after starting the massage using the cleansing cosmetic. Specifically, when the skin was covered with the cleansing cosmetic in the same way as in Reference Example 1 or better (covered with an opaque film), it was judged as "good matte feeling when used." When it was inferior (high transparency), it was judged as "poor matte feeling when used." Evaluation was made on a 4-point scale according to the following criteria.

[0076] <Evaluation criteria> ◎: Very good (15 or more panelists answered that the matte feel when used was good) ○: Good (10 to 15 panelists answered that the matte feel during use was good) △: Slightly bad (5 to 10 panelists felt that the matte feel was good when used) ×: Bad (less than 5 panelists felt that the matte feel was good when used)

[0077] -Friction during massage The feeling of friction (heavy) during massage using the cleansing cosmetic was evaluated. Specifically, when the feeling of friction (heavy) was equal to or greater than that of Reference Example 1, it was rated as "high feeling of friction during massage," and when it was weaker (lighter), it was rated as "not high feeling of friction during massage," and the evaluation was made on a four-point scale according to the following criteria.

[0078] <Evaluation criteria> ◎: Very good (15 or more panelists answered that they felt a strong sense of friction during massage) ○: Good (10 to 15 panelists answered that they felt a strong sense of friction during massage) △: Slightly bad (5 to less than 10 panelists felt a strong sense of friction during massage) ×: Bad (less than 5 panelists felt high friction during massage)

[0079] · Refreshing feeling after washing After massaging with the cleansing cosmetic and rinsing, the refreshing feeling was evaluated. Specifically, the cleansing cosmetic was compared with the cleansing cosmetic of Reference Example 1 to evaluate whether it felt oily on the skin. If the oiliness was the same or less than that, it was rated as "high refreshing feeling," and if it was less than that (oily feeling), it was rated as "low refreshing feeling," and the evaluation was made on a 4-point scale according to the following criteria.

[0080] <Evaluation criteria> ◎: Very good (15 or more panelists answered that it was very refreshing) ○: Good (10 to less than 15 panelists answered that it was very refreshing) △: Slightly bad (5 to less than 10 panelists rate it as refreshing) ×: Bad (less than 5 panelists said it was very refreshing)

[0081] ·Moldability 80 g of the mixture obtained in the same manner as in the preparation procedure described above was poured into a transparent plastic jar (capacity 100 g) to a thickness of 7.5 cm, and left to cool (without lid) at room temperature (25°C). Six hours after pouring into the container, the appearance of each oil-based cleansing cosmetic was visually observed and evaluated according to the following criteria.

[0082] <Evaluation criteria> ◎: The surface is smooth and has no noticeable scratches ○: The surface is smooth and cracks can be seen on the side △: Slight unevenness can be seen on the surface ×: Clearly uneven surface

[0083] The cosmetic of Comparative Example 1 also had no irregularities or scratches on the surface, but since the cosmetic of Comparative Example 1 is a liquid oil-based cleansing cosmetic and does not produce the irregularities or scratches that are typical of solid preparations, the evaluation result in Table 2 is marked with "-".

[0084] ·Storage stability In the same manner as described above, 80 g of the mixture was poured into a transparent plastic jar (capacity: 100 g) to a thickness of 7.5 cm and sealed. After cooling at room temperature, the mixture was stored in a reciprocating thermostatic chamber (temperature-cycled thermostatic chamber at 5°C to 35°C) for two months, and its storage stability (appearance, scent, and usability) was evaluated. Storage stability was evaluated by comparing the appearance, scent, and usability of each oil-based cleansing cosmetic after two months of storage with those of each oil-based cleansing cosmetic immediately after cooling. Here, appearance was observed visually, scent was evaluated by directly smelling each oil-based cleansing cosmetic, and usability was evaluated in the same manner as in the evaluation of compatibility with makeup cosmetics, dripping, dirt removal, matte feel during use, frictional feel during massage, and refreshing feel after cleansing, and these were evaluated according to the following criteria.

[0085] <Evaluation criteria> ⊚: No change in appearance, scent or usability. ○: Almost no change in appearance, but slight changes in scent and usability. △: Slight sweating (leakage of liquid) is observed, and there is a change in the scent and usability. ×: Sweating is clearly observed, and there is a clear change in scent and usability.

[0086] ·Film forming property Each cleansing cosmetic was applied at 9.2 mg / cm on one side of a commercially available PMMA plate (resin sample plate manufactured by AS ONE: 50 mm x 50 mm x 1 mm). 2 The cosmetic was then applied with a finger with a constant force for 30 seconds, and the cosmetic was spread evenly on the plate to prepare a plate sample. The transmittance of the plate sample was measured at a wavelength of 450 nm using an absorptiometer (UV-1800, manufactured by Shimadzu Corporation) and compared. The lower the transmittance, the higher the film-forming ability, which is considered to be preferable for the cleansing cosmetic of the present disclosure (for example, 92% or less, and even 85% or less is preferable; the lower limit is theoretically 0%).

[0087] Cleansing power 0.5 g of commercially available red lipstick was evenly spread on a simulated skin (manufactured by Beaulux Co., Ltd., 2 cm x 2 cm) and left for 10 minutes. 0.04 g of oil-based cleansing cosmetic was weighed out and placed on the simulated skin with the lipstick applied. It was massaged with a constant force using fingers for 30 seconds, and then rinsed with a constant amount of water for 30 seconds. After drying for 10 minutes, the a value (redness) was measured using a spectrophotometer CM-700d (manufactured by Konica Minolta, Inc.). The difference between the a value of the simulated skin before cleansing and the a value of the simulated skin after cleansing was defined as Δa (Δa = "a value of the simulated skin before cleansing" - "a value of the simulated skin after cleansing"). A larger Δa value indicates a stronger cleansing power.

[0088] result The results are shown in Tables 1 and 2.

[0089] [Table 1]

[0090] [Table 2]

[0091] As shown in Table 1, the solid oil-based cleansing cosmetics shown in Examples 1 to 10, which contain natural wax, an amide alcohol derivative, a liquid oil, and a nonionic surfactant with an HLB value of 5 to 13, were evaluated as excellent or excellent in terms of usability, such as compatibility with makeup cosmetics, dripping, dirt removal, matte feel during use, frictional feel during massage, and refreshing feel after cleansing. Furthermore, the oil-based cleansing cosmetics shown in Examples 1 to 10 were evaluated as excellent or excellent in terms of moldability and storage stability. Furthermore, these oil-based cleansing cosmetics were also excellent in terms of film-forming ability (transmittance of 91% or less) and cleansing power (Δa value of about 21 or more).

[0092] Furthermore, as shown in Table 1, a correlation was observed between the panel's evaluation of matte finish and the evaluation of film-forming ability, with a good matte finish being obtained when film-forming ability was high (low transmittance, for example, transmittance of 91% or less), and a higher matte finish tending to be obtained when film-forming ability was above a certain level (transmittance of 85% or less). A correlation was also observed between the panel's evaluation of dirt removal and the evaluation of cleansing power using a spectrophotometer. This can be said to mean that the panel's evaluation was conducted appropriately.

[0093] On the other hand, as shown in Table 2, the liquid oil-based cleansing cosmetic of Comparative Example 1, which contained a liquid oil and a nonionic surfactant with an HLB value of 5 to 13 but did not contain a natural wax or an amide alcohol derivative, received many x marks in the evaluation results in terms of the various usability aspects mentioned above, and was inferior to Examples 1 to 10, and did not provide the desired cleansing cosmetic. Furthermore, because the cosmetic of Comparative Example 1 was liquid, dripping was observed.

[0094] Furthermore, the solid oil-based cleansing cosmetics of Comparative Examples 2, 3, 5, 7, and 8, which contained vegetable wax but did not contain at least one of an amide alcohol derivative and a nonionic surfactant with an HLB value of 5 to 13, received many △ and × evaluation results in terms of the aforementioned usability, moldability, and storage stability, and were inferior to Examples 1 to 10, and did not produce the desired cleansing cosmetics. The oil-based cleansing cosmetic of Comparative Example 4, which contained an amide alcohol derivative, a liquid oil, and a nonionic surfactant with an HLB value of 5 to 13 but did not contain vegetable wax, also did not produce the desired cleansing cosmetic. Furthermore, Comparative Example 6, which contained vegetable wax, an amide alcohol derivative, a nonionic surfactant with an HLB value of 5 to 13, and a liquid oil, but in which the ester oil content of the total liquid oil was only 22.4% by mass, also did not produce the desired cleansing cosmetic.

[0095] Furthermore, as mentioned above, the solid oil-based cleansing cosmetic of Reference Example 1 is a cosmetic that does not contain any natural wax but uses a high-melting point polyethylene wax, and as shown in Table 2, it can be said to be a conventionally known cleansing cosmetic that provides the desired effects. However, as shown in Comparative Examples 2, 3, and 5 to 8, simply using a natural wax instead of the high-melting point polyethylene wax did not provide such desired effects.

[0096] From this, it was found that by blending natural wax, an amide alcohol derivative, a liquid oil, and a nonionic surfactant with an HLB value of 5 to 13, and by adjusting the proportion of ester oil in the liquid oil to a certain level or more, a solid oil-based cleansing cosmetic can be obtained that is excellent in all of the above-mentioned usability, moldability, and storage stability, and also in terms of film-forming ability and cleansing power.

[0097] Prescription example Solid oil-based cleansing cosmetics were prepared according to the following formulations. Similar to the above-mentioned Examples, the solid oil-based cleansing cosmetics of Formulation Examples 1 and 2 are also excellent in terms of usability, moldability, storage stability, film-forming ability, and cleansing power.

[0098] Prescription example 1 Content (mass%) (A) Sunflower Wax 4 (A) Carnauba wax 1 (B) N-oleylhydroxyhexanamide 2 (C) Plant-based (sugarcane-derived) squalane 25 (C) Caprylic / Capric Triglyceride 30 (C) Ethylhexyl palmitate remainder (C) Methylphenylpolysiloxane 5 (C) Jojoba oil 0.2 (C) Carrot oil 0.2 (C) Macadamia nut oil 0.2 (D) PEG-20 glyceryl triisostearate (HLB 8.0) 10 (E1) Docosan 1 Ethylhexyl methoxycinnamate (appropriate amount) Fragrance (appropriate amount) Total 100

[0099] Prescription example 2 Content (mass%) (A) Sunflower Wax 5 (A) Rice bran wax 2 (B) N-oleylhydroxyhexanamide 3 (C) Ethylhexyl palmitate 20 (C) Isodecyl isononanoate 25 (C) Tri(caprylic / capric)glycerin, balance (D) Caprylic acid polyglycerol (HLB 9.5) 11 (E1) Docosan 1 (E2) Glycerin tristearate 2g Dextrin distearate Appropriate amount Methoxybenzylidene dioxoimidazolidine octyl propionate (appropriate amount) Ethylhexyl methoxycinnamate (appropriate amount) Tocopherol (appropriate amount) Dye appropriate amount Fragrance (appropriate amount) Total 100

Claims

1. A solid oil-based cleansing cosmetic composition comprising the following components (A) to (D): (A) 0.1 to 20% by mass of at least one natural wax selected from the group consisting of sunflower wax, Japan wax, candelilla wax, carnauba wax, rice bran wax, beeswax, and montan wax, per 100% by mass of the cosmetic composition; (B) an amide alcohol derivative in an amount of 0.1 to 20% by mass per 100% by mass of the cosmetic; (C) a liquid oil containing an ester oil, wherein the content of the ester oil in 100% by mass of the liquid oil is 35% by mass or more; (D) a nonionic surfactant having an HLB value of 5 to 13 in an amount of 5 to 40% by mass per 100% by mass of the cosmetic; where: The total content of the components (A) to (D) per 100% by mass of the cosmetic is 99 to 100% by mass, When the cosmetic further contains at least one selected from the group consisting of the following components (E1) and (E2), the total content of the components (A) to (D), (E1), and (E2) per 100% by mass of the cosmetic is 99 to 100% by mass, and the total content of the at least one selected from the group consisting of the components (E1) and (E2) per 100% by mass of the cosmetic is 0.1 to 20% by mass. (E1) A hydrocarbon oil having a melting point of 40 to 60°C, which is a linear hydrocarbon having 20 to 30 carbon atoms obtained by dehydrating, distilling, and hydrogenating a linear alcohol derived from a plant; (E2) A glycerin fatty acid triester that is solid at 25°C.

2. 2. The solid oil-based cleansing cosmetic according to claim 1, wherein the amido alcohol derivative is N-oleylhydroxyhexanamide.

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