Two-layered cosmetic
A two-layer cosmetic formulation with polyquaternium, dihydroxypropylarginine, and nonionic surfactants with HLB 7 or less, along with an oily component, addresses the issue of rapid separation, offering a moderate and stable separation time for improved usability.
Patent Information
- Application Number
- JP2023121390
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-26
- Publication Date
- 2025-02-06
AI Technical Summary
Existing two-layer cosmetics separate too quickly after mixing, making them difficult to use effectively.
Incorporating specific amounts of polyquaternium, dihydroxypropylarginine or its salt, nonionic surfactants with an HLB of 7 or less, and an oily component in a two-layer cosmetic formulation to achieve a moderate separation time after mixing.
The formulation provides a two-layer cosmetic with a controlled separation speed, enhancing usability by ensuring easy application and stability.
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Abstract
Description
[Technical field]
[0001] The present invention relates to a two-layer cosmetic preparation. [Background technology]
[0002] A two-layer cosmetic composition having two separate layers is used by shaking and mixing when used, and includes lotions, beauty essences, makeup removers, etc. For example, two-layer cosmetic compositions are disclosed in Patent Documents 1 and 2. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2019-112451 A [Patent Document 2] JP 2016-124817 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, the time required for separation into two layers after mixing may be too short, making it difficult to use. Therefore, an object of the present invention is to provide a two-layer cosmetic preparation which has an appropriate separation time after mixing. [Means for solving the problem]
[0005] The present inventors conducted extensive research into a two-layer cosmetic composition that has an appropriate separation time after mixing, and surprisingly discovered that a two-layer cosmetic composition with an appropriate separation speed can be obtained by including (a) a polyquaternium, (b) dihydroxypropylarginine or a salt thereof, (c) a nonionic surfactant with an HBL of 7 or less, and (d) an oily component. The present invention is based on these findings. Thus, the present invention provides [1] (a) 0.001 to 1.0% by weight of a polyquaternium, (b) 0.001 to 5% by weight of dihydroxypropylarginine or a salt thereof, (c) 0.001 to 1.0% by weight of a nonionic surfactant having an HBL of 7 or less, (d) 0.1 to 60% by weight of an oil component, A two-layer cosmetic composition comprising: [2] The two-layer cosmetic according to [1], wherein the polyquaternium is selected from the group consisting of polyquaternium-51, polyquaternium-61, polyquaternium-64, and polyquaternium-65; and [3] The two-layer cosmetic composition according to [1] or [2], wherein the nonionic surfactant having an HBL of 7 or less is selected from the group consisting of polyglyceryl-2 diisostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-2 triisostearate, PEG-10 glyceryl diisostearate, PEG-10 glyceryl triisostearate, PEG-20 hydrogenated castor oil triisostearate, PEG-15 hydrogenated castor oil triisostearate, PEG-10 hydrogenated castor oil triisostearate, PEG-3 glyceryl isostearate, sorbitan isostearate, or sorbitan sesquiisostearate; Regarding. Effect of the Invention
[0006] According to the two-layer cosmetic of the present invention, the separation speed after mixing is appropriate, and it is possible to provide a two-layer cosmetic that is easy to use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0007] Polyquaternium; component a The two-layer cosmetic preparation of the present invention contains 0.001 to 1.0% by weight of a polyquaternium (hereinafter sometimes referred to as component a). Polyquaternium is a polymer containing 2-methacryloyloxyethyl phosphorylcholine and exhibits surface-active properties. The polyquaternium may be represented by the following formula (1): [ka] (In the formula, m is 50 to 3000, and n is 100 to 6000.) An example of such a polyquaternium is polyquaternium-51 represented by the formula: The lower limit of m is 40 or more in one embodiment, 50 or more in one embodiment, 100 or more in one embodiment, and 500 or more in one embodiment. The upper limit of m is 4500 or less in one embodiment, 4000 or less in one embodiment, 3500 or less in one embodiment, 3000 or less in one embodiment, and 2000 or less in one embodiment. The lower limit of n is 100 or more in one embodiment, 500 or more in one embodiment, 1000 or more in one embodiment, 2000 or more in one embodiment, and 5000 or more in one embodiment. The upper limit of n is 9000 or less in one embodiment, 8000 or less in one embodiment, 7000 or less in one embodiment, 6000 or less in one embodiment, and 5000 or less in one embodiment. The upper limit and the lower limit can be arbitrarily combined to form the range of m or n.
[0008] Another polyquaternium is represented by the following formula (2): [ka] (In the formula, m is 30 to 5000, n is 50 to 10000, and o is 50 to 10000.) An example of such a polyquaternium is polyquaternium-65 represented by the formula: The lower limit of m is 40 or more in one embodiment, 50 or more in one embodiment, 100 or more in one embodiment, and 500 or more in one embodiment. The upper limit of m is 4500 or less in one embodiment, 4000 or less in one embodiment, 3500 or less in one embodiment, 3000 or less in one embodiment, and 2000 or less in one embodiment. The lower limit of n is 100 or more in one embodiment, 500 or more in one embodiment, 1000 or more in one embodiment, 2000 or more in one embodiment, and 5000 or more in one embodiment. The upper limit of n is 9000 or less in one embodiment, 8000 or less in one embodiment, 7000 or less in one embodiment, 6000 or less in one embodiment, and 5000 or less in one embodiment. The lower limit of o in one embodiment is 100 or more, in one embodiment is 500 or more, in one embodiment is 1000 or more, in one embodiment is 2000 or more, and in one embodiment is 5000 or more. The upper limit of o in one embodiment is 9000 or less, in one embodiment is 8000 or less, in one embodiment is 7000 or less, in one embodiment is 6000 or less, and in one embodiment is 5000 or less. The upper and lower limits can be arbitrarily combined to form the range of m, n, or o.
[0009] Another polyquaternium is represented by the following formula (3): [ka] (In the formula, m is 30 to 5000, and n is 50 to 10000.) An example of such a polyquaternium is polyquaternium-64 represented by the formula: The lower limit of m is 40 or more in one embodiment, 50 or more in one embodiment, 100 or more in one embodiment, and 500 or more in one embodiment. The upper limit of m is 4500 or less in one embodiment, 4000 or less in one embodiment, 3500 or less in one embodiment, 3000 or less in one embodiment, and 2000 or less in one embodiment. The lower limit of n is 100 or more in one embodiment, 500 or more in one embodiment, 1000 or more in one embodiment, 2000 or more in one embodiment, and 5000 or more in one embodiment. The upper limit of n is 9000 or less in one embodiment, 8000 or less in one embodiment, 7000 or less in one embodiment, 6000 or less in one embodiment, and 5000 or less in one embodiment. The upper limit and the lower limit can be arbitrarily combined to form the range of m or n.
[0010] Another polyquaternium is represented by the following formula (4): [ka] (In the formula, m is 30 to 5000, and n is 50 to 6000.) An example of such a polyquaternium is polyquaternium-61 represented by the formula: The lower limit of m is 40 or more in one embodiment, 50 or more in one embodiment, 100 or more in one embodiment, and 500 or more in one embodiment. The upper limit of m is 4500 or less in one embodiment, 4000 or less in one embodiment, 3500 or less in one embodiment, 3000 or less in one embodiment, and 2000 or less in one embodiment. The lower limit of n is 100 or more in one embodiment, 500 or more in one embodiment, 1000 or more in one embodiment, 2000 or more in one embodiment, and 5000 or more in one embodiment. The upper limit of n is 9000 or less in one embodiment, 8000 or less in one embodiment, 7000 or less in one embodiment, 6000 or less in one embodiment, and 5000 or less in one embodiment. The upper limit and the lower limit can be arbitrarily combined to form the range of m or n. The polyquaternium preferably contains other repeating units in addition to the repeating units containing 2-methacryloyloxyethyl phosphorylcholine. Examples of the other repeating units include the repeating units contained in the polyquaternium-51, polyquaternium-65, polyquaternium-64, or polyquaternium-61.
[0011] The content of the component a in the two-layer cosmetic is not particularly limited as long as the effect of the present invention can be obtained, but the lower limit is, for example, 0.001% by weight or more, more preferably 0.0015% by weight or more, even more preferably 0.002% by weight or more, even more preferably 0.005% by weight or more, and even more preferably 0.010% by weight or more. The upper limit is, for example, 1.0% by weight or less, 0.5% by weight or less, preferably less than 0.5% by weight, even more preferably 0.45% by weight or less, and even more preferably 0.40% by weight or less. By being in the above range, the oily component can be emulsified and the irritation to the skin can be reduced. In addition, the lower limit and the upper limit of the above range can be combined to form the range of the content of component a.
[0012] The content ratio of component a to the oily component in the two-layer cosmetic is not particularly limited as long as the effects of the present invention are obtained, but is, for example, 0.25 parts by weight or more, preferably 0.30 parts by weight or more, more preferably 0.35 parts by weight or more, even more preferably 0.40 parts by weight or more, and even more preferably 0.50 parts by weight or more, relative to 100 parts by weight of the oily component. The upper limit of the content ratio is not limited, but is 100 parts by weight or less, in one embodiment 50 parts by weight or less, in one embodiment 10 parts by weight or less, and in one embodiment 5 parts by weight or less, relative to 100 parts by weight of the oily component.
[0013] Dihydroxypropyl arginine: component b The two-layer cosmetic preparation of the present invention contains 0.001 to 5% by weight of dihydroxypropylarginine (hereinafter sometimes referred to as ingredient b). Dihydroxypropylarginine has the following formula (5): [ka] It is a compound represented by the formula: Dihydroxypropylarginine may be used in the form of a salt. The salt of dihydroxypropylarginine is not limited as long as it is a salt with an acid and is acceptable for use in cosmetics. Specific examples of salts with acids include salts with inorganic acids and organic acids, such as acetic acid, sulfuric acid, phosphoric acid, and hydrochloric acid, with hydrochloric acid being preferred. For example, dihydroxypropylarginine HCL has the following formula (6): [ka] It is a compound represented by the formula:
[0014] The content of the component b in the two-layer cosmetic is not particularly limited as long as the effect of the present invention can be obtained, but the lower limit is, for example, 0.001% by weight or more, more preferably 0.002% by weight or more, even more preferably 0.003% by weight or more, even more preferably 0.005% by weight or more, and even more preferably 0.010% by weight or more. The upper limit is, for example, 5% by weight or less, preferably less than 4% by weight, even more preferably 3% by weight or less, and even more preferably 2.7% by weight or less. By being in the above range, the oily component can be emulsified. In addition, the lower limit and the upper limit of the above range can be combined to form the range of the content of component b.
[0015] The content ratio of component a to the oily component in the two-layer cosmetic is not particularly limited as long as the effects of the present invention are obtained, but is, for example, 0.30 parts by weight or more, preferably 0.40 parts by weight or more, more preferably 0.50 parts by weight or more, and even more preferably 0.60 parts by weight or more, relative to 100 parts by weight of the oily component. The upper limit of the content ratio is, but is not limited to, 100 parts by weight or less, in one embodiment 50 parts by weight or less, in one embodiment 10 parts by weight or less, and in one embodiment 5 parts by weight or less, relative to 100 parts by weight of the oily component.
[0016] <Nonionic surfactants with an HLB value of 7 or less: component c> The two-layer cosmetic composition of the present invention contains 0.1 to 5% by weight of a nonionic surfactant having an HLB value of not more than 7. Although not particularly limited, a nonionic surfactant that is liquid or pasty at room temperature is preferred.
[0017] The HLB of the nonionic surfactant used in the two-layer cosmetic of the present invention is not limited as long as it is 7 or less. By having an HLB of 7 or less, the start time of separation into two layers can be delayed. Methods for calculating the HLB of a nonionic surfactant include the Griffin method, the Davis method, the Atlas method, and the Kawakami method, and the HLB calculated by the Griffin method is used in this specification. The HLB according to the Griffin method can be calculated by the following formula. HLB = 20 x (molecular weight of hydrophilic part / total molecular weight) In addition to the Griffin method, a method may be used in which the nonionic surfactant for which the HLB is to be determined is added to a standard sample, emulsified, and then experimentally determined.
[0018] The nonionic surfactant used in the two-layer cosmetic composition of the present invention is not limited as long as it has the above-mentioned physical properties, but examples thereof include sorbitan sesquiisostearate (HLB: 4.0), PEG-30 dipolyhydroxystearate (HLB: 5.5), polyglyceryl-2 diisostearate (HLB: 4.1), monoisostearate glyceride (HLB: 4.0), POE (7) hydrogenated castor oil (HLB: 5.9), sorbitan monooleate (HLB: 4.3), POE (10) glycerin triisostearate (HLB: 5.1), POE (10) hydrogenated castor oil triisostearate (HLB: 3.6), POE (2) octyldodecyl ether diester lauroyl glutamate (HLB: 4.0), diisostearate glyceride, Examples of the isostearate include glyceride dioleate, sorbitan monoisostearate, propylene glycol monooleate, diglyceryl diisostearate, decaglyceryl pentaoleate, decaglyceryl decaoleate, (stearic acid / malic acid) glyceride, POE(3) sorbitol isostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-2 triisostearate, PEG-10 glyceryl diisostearate, PEG-10 glyceryl triisostearate, PEG-20 hydrogenated castor oil triisostearate, PEG-15 hydrogenated castor oil triisostearate, PEG-10 hydrogenated castor oil triisostearate, PEG-3 glyceryl isostearate, and sorbitan isostearate. Particularly preferred are polyglyceryl-2 diisostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-2 triisostearate, PEG-10 glyceryl diisostearate, PEG-10 glyceryl triisostearate, PEG-20 hydrogenated castor oil triisostearate, PEG-15 hydrogenated castor oil triisostearate, PEG-10 hydrogenated castor oil triisostearate, PEG-3 glyceryl isostearate, sorbitan isostearate, and sorbitan sesquiisostearate.
[0019] The content of the nonionic surfactant contained in the two-layer cosmetic of the present invention is not particularly limited as long as it is 0.001 to 1.0% by weight, but is preferably 0.002 to 0.8% by weight, more preferably 0.003 to 0.5% by weight, and most preferably 0.005 to 0.3% by weight. If the content of the nonionic surfactant is less than 0.001% by weight, a smooth feel and suppleness may not be obtained, and if the content exceeds 1.0% by weight, the oily components may separate, causing stability problems.
[0020] 《Oily component: Component d》 The two-layer cosmetic of the present invention contains 0.1 to 60% by weight of an oily component (hereinafter, sometimes referred to as component d). The oily component is not particularly limited, and examples thereof include ester oil, hydrocarbon oil, animal and vegetable oil, aliphatic alcohol, higher fatty acid, silicone, and silicone derivatives. The two-layer cosmetic of the present invention can use one or a mixture of two or more of these oily components.
[0021] Examples of the ester oil include isopropyl myristate, butyl myristate, isopropyl palmitate, butyl stearate, ethyl stearate, ethyl oleate, ethyl linoleate, isopropyl linoleate, cetyl caprylate, hexyl laurate, decyl myristate, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, oleyl oleate, cetyl ricinoleate, isostearyl laurate, isotridecyl myristate, 2-hexyldecyl myristate, myrist ... Isostearyl myristate, 2-octyldodecyl myristate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, 2-hexyldecyl stearate, isodecyl oleate, 2-octyldodecyl oleate, 2-octyldodecyl ricinoleate, ethyl isostearate, isopropyl isostearate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, hexyl isostearate, diethyl 2-ethylhexanoate Ethylene glycol, ethylene glycol dioleate, propylene glycol dicaprylate, propylene glycol dicaprylate, propylene glycol dicaprate, propylene glycol dioleate, neopentyl glycol dicaprate, neopentyl glycol di-2-ethylhexanoate, glyceryl tricaprylate, glyceryl tri-2-ethylhexanoate, glyceryl tricaprylate, glyceryl tri-undecylate, glyceryl triisopalmitate, glyceryl triisostearate, tri-2-ethylhexanoic acid Trimethylolpropane, trimethylolpropane triisostearate, pentaerythritol tetra 2-ethylhexanoate, pentaerythritol tetramyristate, pentaerythritol tetraisostearate, dipentaerythritol fatty acid ester (1), 2-octyldodecyl neopentanoate, 2-hexyldecyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, 2-ethylhexyl isononanoate, 2-hexyldecyl dimethyloctanoate, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate,2-Hexyldecyl isostearate, isostearyl isostearate, 2-octyldodecyl isostearate, lauryl lactate, myristyl lactate, cetyl lactate, 2-octyldodecyl lactate, triethyl citrate, acetyl triethyl citrate, acetyl tributyl citrate, tri-2-ethylhexyl citrate, triisocetyl citrate, tri-2-octyldodecyl citrate, diisostearyl malate, 2-ethylhexyl hydroxystearate, di-2-ethylhexyl succinate, diisopropyl adipate, diisobutyl adipate, di-2-ethyl adipate Examples of the stearate include hexyl, diethyl sebacate, diisopropyl sebacate, di-2-ethylhexyl sebacate, dibutyloctyl sebacate, cholesteryl stearate, cholesteryl isostearate, cholesteryl hydroxystearate, cholesteryl oleate, dihydrocholesteryl oleate, phytosteryl isostearate, phytosteryl oleate, isocetyl 12-stearoylhydroxystearate, stearyl 12-stearoylhydroxystearate, and isostearyl 12-stearoylhydroxystearate.
[0022] Examples of the hydrocarbon oil include ozokerite, α-olefin oligomer, light isoparaffin, light liquid isoparaffin, synthetic squalane, vegetable squalane, squalane, ceresin, paraffin, polyethylene powder, polybutene, liquid isoparaffin, liquid paraffin, squalene, pristane, petrolatum, and microcrystalline wax.
[0023] Examples of the animal and vegetable oils include avocado oil, corn oil, evening primrose oil, persic oil, camellia oil, castor oil, safflower oil, cinnamon oil, almond oil, soybean oil, soybean germ oil, rapeseed oil, high oleic rapeseed oil, corn oil, sesame oil, perilla oil, linseed oil, peanut oil, safflower oil, high oleic safflower oil, sunflower oil, mid oleic sunflower oil, high oleic sunflower oil, cottonseed oil, Examples of such oils include grape seed oil, macadamia nut oil, hazelnut oil, pumpkin seed oil, walnut oil, camellia oil, tea seed oil, perilla oil, borage oil, olive oil, rice bran oil, wheat germ oil, palm oil, palm kernel oil, coconut oil, cocoa butter, egg yolk oil, mink oil, beef tallow, lard, chicken fat, milk fat, fish oil, seal oil, and algae oil, as well as fractionated oils, hardened oils, and interesterified oils thereof.
[0024] Examples of the aliphatic alcohol include alcohols having 12 to 22 carbon atoms (so-called higher alcohols), such as linear saturated alcohols (e.g., lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, or behenyl alcohol), branched saturated alcohols (e.g., isostearyl alcohol or octyldodecanol), or unsaturated alcohols (e.g., oleyl alcohol).
[0025] Examples of the higher fatty acid include linear saturated fatty acids (e.g., lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, 12-hydroxystearic acid), branched saturated fatty acids (e.g., isostearic acid), unsaturated fatty acids (e.g., oleic acid, linoleic acid, linoleic acid, undecylenic acid, eicosapentaenoic acid, docosahexaenoic acid), tall acid, and lanolic acid.
[0026] Examples of the silicone or silicone derivative include methylpolysiloxane, dimethylsiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, methylaminopropylsiloxane, aminoethylaminopropylmethylsiloxane, silicone rubber, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpolysiloxane, highly polymerized methylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, decamethylpolysiloxane, and methyl(aminopropyl)siloxane.
[0027] The content of the oily component is not particularly limited as long as it is 0.1 to 60% by weight, but the lower limit is preferably 0.5% by weight or more, more preferably 1% by weight or more, even more preferably 2% by weight or more, and even more preferably 3% by weight or more. The upper limit is also not particularly limited, but is preferably 50% by weight or less, more preferably 40% by weight or less, even more preferably 30% by weight or less, and even more preferably 20% by weight or less. By being in the above range, an optimal two-layer cosmetic can be prepared. In addition, the lower limit and upper limit of the above range can be combined to form the range of the content of component d.
[0028] "water" The two-layer cosmetic of the present invention contains water (e.g., ion-exchanged water). The content of water in the two-layer cosmetic is not particularly limited as long as a two-layer structure is obtained, but may be, for example, 5 to 70% by weight, preferably 8 to 65% by weight, more preferably 10 to 60% by weight, and most preferably 14 to 56% by weight. Water is a main component that forms one of the two layers, and can be used appropriately within any of the above ranges, taking into account the ratio with the other layer.
[0029] The two-layer cosmetic of the present invention is an emulsion cosmetic that separates within several tens of minutes to several hours, and examples thereof include, but are not limited to, emulsions, cleansing products, packs, massage products, detergents, deodorants, skin care cosmetics, makeup bases, foundations, makeup cosmetics, hair cosmetics such as rinses, treatments, and setting agents, antiperspirant cosmetics, and ultraviolet protection cosmetics such as sunscreens and sunscreen emulsions.
[0030] In addition to the above essential components, the two-layer cosmetic of the present invention may contain other components that are normally incorporated into cosmetics, as appropriate, provided that the effects of the present invention are not impaired. Examples of other components include moisturizers (e.g., trimethylglycine, concentrated glycerin, sorbitol, xylitol, hyaluronic acid, sodium pyrrolidone carboxylate, ceramides, and hydrolyzed keratin), colorants (e.g., pigments or dyes), viscosity adjusters (e.g., methylcellulose, polyethylene glycol), emulsifiers (e.g., glycerin monostearate), pearlescent agents (e.g., glycol distearate or ethylene glycol distearate), salts (e.g., sodium chloride), plant extracts, preservatives, vitamins, fragrances, ultraviolet absorbers, antioxidants, moisturizers, chelating agents, pH adjusters (e.g., citric acid or tartaric acid), and water. EXAMPLES
[0031] The present invention will be specifically described below with reference to examples, but the scope of the present invention is not limited thereto.
[0032] Comparative Examples 1 to 4 In this comparative example, a two-layer cosmetic was prepared that did not contain component c. That is, a two-layer cosmetic was prepared by mixing components a, b, d, an aqueous component, etc., according to the composition shown in Table 1. The obtained two-layer cosmetic was shaken to mix, and the time until separation began was measured; separation began in 5 to 20 seconds (Table 1).
[0033] Examples 1 to 6 In this example, a two-layer cosmetic was prepared by mixing components a, b, c, d, and an aqueous component according to the composition shown in Table 1. The obtained two-layer cosmetic was shaken to mix, and the time until separation began was measured, which showed that separation began after 40 to 60 seconds (Table 1). In this example, an appropriate separation time after mixing was obtained, and it was considered to be easy to use.
[0034] [Table 1] [Industrial Applicability]
[0035] The two-layer cosmetic composition of the present invention has an appropriate separation speed after mixing, and can provide a two-layer cosmetic composition that is easy to use.
Claims
1. (a) 0.001 to 1.0% by weight of a polyquaternium; (b) 0.001 to 5% by weight of dihydroxypropylarginine or a salt thereof; (c) 0.001 to 1.0% by weight of a nonionic surfactant having an HBL of 7 or less; (d) 0.1 to 60% by weight of an oil component; A two-layer cosmetic comprising:
2. 2. The two-layer cosmetic according to claim 1, wherein the polyquaternium is selected from the group consisting of polyquaternium-51, polyquaternium-61, polyquaternium-64, and polyquaternium-65.
3. 3. The two-layer cosmetic according to claim 1 or 2, wherein the nonionic surfactant having an HBL of 7 or less is selected from the group consisting of polyglyceryl-2 diisostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-2 triisostearate, PEG-10 glyceryl diisostearate, PEG-10 glyceryl triisostearate, PEG-20 hydrogenated castor oil triisostearate, PEG-15 hydrogenated castor oil triisostearate, PEG-10 hydrogenated castor oil triisostearate, PEG-3 glyceryl isostearate, sorbitan isostearate, and sorbitan sesquiisostearate.
Citation Information
Patent Citations
Double layered cosmetic
JP2016124817A
Two-layer-type cosmetic
JP2019112451A
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