Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
  • A61K8/06—Emulsions
  • A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/34—Alcohols
  • A61K8/342—Alcohols having more than seven atoms in an unbroken chain
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/37—Esters of carboxylic acids
  • A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/42—Amides
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
  • A61K8/585—Organosilicon compounds
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/68—Sphingolipids, e.g. ceramides, cerebrosides, gangliosides
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • A61K8/8105—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • A61K8/8111—Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/89—Polysiloxanes
  • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
  • A61K8/893—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/89—Polysiloxanes
  • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
  • A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/007—Preparations for dry skin

Definitions

• the present invention relates to emulsion compositions.
• Emulsified compositions containing high-melting solid fats such as ceramides are expected to have a high moisturizing effect, but have problems with stability such as crystal precipitation and separation.
• Emulsions containing dextrin and polyglycerin fatty acid ester (Patent Document 1) and the like have been investigated. Moreover, not only the stability against ceramides, but also the improvement of the skin's moisture occlusion property after application and the feeling of use have been studied.
• Patent Document 2 discloses a water-in-oil emulsion composition containing ceramides, a polyglycerin fatty acid ester, a specific lipophilic surfactant, a dextrin fatty acid ester, a hydrocarbon oil that is liquid at 25°C, and water.
• the coating film has a high moisture occlusion property, and the skin has a good protective feeling and a glossy feeling.
• emulsified cosmetics containing surfactants, oil agents (excluding meadowfoam estolides, cholesterol and phytosterols), and water stably incorporate ceramides and have excellent usability without stickiness.
• Patent Document 1 JP-A-2008-156342 (Patent Document 2) JP-A-2019-85390 (Patent Document 3) JP-A-2016-108243
• the present invention provides the following components (A), (B), (C), (D) and (E): (A) 0.1 to 20% by mass of an oily component having a melting point of 50 to 150°C; (B) octamethyltrisiloxane 1 to 30% by mass, (C) ⁇ -olefin oligomer 1 to 20% by mass, (D) a nonionic surfactant; (E) It relates to an emulsified composition containing water.
• Such people need emulsifiers containing high-melting-point solid fats such as ceramides, which have a high moisturizing effect, in order to sustainably increase the feeling of moisture in the skin under low-humidity conditions caused by air-conditioning and to make the skin moist and fresh. It is preferable to apply the type skin care agent even in summer. However, when using a conventional emulsified skin care agent and going outdoors in a hot and humid environment, the skin may feel uncomfortable, as if the skin is hot and hot.
• the present invention contains solid fats with a high melting point, and has a high moisturizing effect that keeps the skin moisturized and gives a fresh feeling to the skin.
• the present invention relates to an emulsified composition that does not give an uncomfortable feeling such as stuffiness.
• an emulsified composition that solves the above problems can be obtained by combining an oily component having a specific melting point, octamethyltrisiloxane, an ⁇ -olefin oligomer, a nonionic surfactant, and water. .
• the emulsified composition of the present invention can stably contain a high melting point oily component such as ceramides, and maintains a moist and fresh feeling on the skin after application.
• a high melting point oily component such as ceramides
• the heat sensation means a feeling of heat filling the skin when the composition is applied to the skin and the skin is exposed to high temperature and high humidity above a certain level.
• Component (A) used in the present invention is an oily component having a melting point of 50 to 150°C, and is a solid oily component at room temperature (5 to 35°C).
• oily components include sphingolipids such as ceramides and sphingosines (including natural products and synthetic products); Sterols such as esters and analogous compounds thereof; C16 - C22 fatty acids such as stearic acid and behenic acid; C16 - C22 higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol, batyl alcohol and chimyl alcohol and their analogues compounds and the like.
• Component (A) is usually a component not defined as a surfactant, and is a component different from component (D).
• Component (A) is an ⁇ -olefin oligomer of component (C), that is, a component that is not obtained by polymerizing and hydrogenating a linear aliphatic ⁇ -olefin having 4 to 12 carbon
• ceramides in addition to natural ceramides, sphingosine derivatives, etc., JP-A-62-228048, JP-A-63-216812, JP-A-63-227513, JP-A-64-29347, Examples include ceramide-like structural substances described in JP-A-64-31752 and JP-A-8-319263. Specifically, it improves the glossiness of the appearance, improves the ease of application, improves the moist feeling of the skin after application, and reduces the feeling of heat in high temperature and high humidity, thereby reducing the burden on the skin. From the viewpoint of reduction, compounds selected from the following general formulas (1) and (2) are preferred, and compounds of general formula (1) are particularly preferred.
• R 1 represents a hydrocarbon group having 10 to 26 carbon atoms
• R 2 represents a hydrocarbon group having 9 to 25 carbon atoms
• X represents -(CH 2 ) n - (where n is 2 to represents an integer of 6).
• R 3 and R 4 are the same or different and represent an optionally hydroxylated hydrocarbon group having 1 to 40 carbon atoms
• R 5 represents an alkylene group having 1 to 6 carbon atoms or a single bond
• R 6 represents a hydrogen atom, an alkoxy group having 1 to 12 carbon atoms or a 2,3-dihydroxypropyloxy group, provided that when R 5 is a single bond, R 6 is a hydrogen atom.
• the hydrocarbon group is preferably an alkyl group or an alkenyl group.
• Examples of the compound of general formula (1) include N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide (INCI name: Cetyl-PG Hydroxyethyl Palmitamide), and general formula (2).
• Examples of compounds include long chain diacid-bis-3-methoxypropylamide.
• the compound represented by the general formula (1) is a pseudo-ceramide, a ceramide functional component, and can supplement the function of ceramide and improve skin condition (moisture content, etc.).
• these components (A) it improves the stability at high temperatures, improves the glossiness of the appearance, improves the ease of application, improves the moist feeling of the skin after application, and improves the skin after application.
• ceramides especially natural ceramides, sphingosines, general formula (1) and ( The compound of 2)
• ceramides preferably contains one or more selected from C 16 -C 22 fatty acids and C 16 -C 22 higher alcohols, and one selected from ceramides and C 16 -C 22 higher alcohols.
• it is more preferable to contain two or more kinds improve the stability at high temperature, improve the continuation of the moist feeling of the skin after application, reduce the feeling of heat in high temperature and high humidity, thereby reducing the feeling of burden on the skin.
• ceramides from the viewpoint of reducing More preferably, it contains one or more compounds, more preferably a compound of the general formula (1), including N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide. is particularly preferred.
• Ceramides especially natural ceramides, sphingosines, general formula (1) above are used from the viewpoint of reducing the feeling of burden on the skin by improving the persistence of the moist feeling of the skin and reducing the feeling of heat in high temperature and high humidity.
• C 16 -C 22 fatty acids C 16 -C 22 higher alcohols, preferably one or more selected from C 16 -C 22 higher alcohols, and selected from ceramides and C 16 -C 22 higher alcohols
• ceramides are more preferable. It is more preferably one or more compounds selected from (2), more preferably a compound of the general formula (1), N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexa Decanamide is particularly preferred.
• component (A) contains ceramides, C 16 -C 22 fatty acids, and C 16 -C 22 higher alcohols
• the stability at high temperatures is improved, the glossiness of the appearance is improved, and the spreadability is improved. It improves the feeling of moisture on the skin after application, improves the continuation of the feeling of moisture on the skin after application, and reduces the feeling of heat in high temperature and high humidity, thereby reducing the feeling of burden on the skin.
• the total content of ceramides, C 16 -C 22 fatty acids and C 16 -C 22 higher alcohols in component (A) is preferably 20 to 100% by mass in component (A), It is more preferably 30 to 100% by mass, even more preferably 50 to 100% by mass, even more preferably 75 to 100% by mass, even more preferably 85 to 100% by mass, Most preferably, it is substantially 100% by mass.
• the component (A) when the component (A) contains ceramides, it improves the stability at high temperatures, improves the duration of moist feeling after application, and reduces the heat sensation at high temperature and high humidity, thereby reducing the burden on the skin.
• the content of ceramides in component (A) is preferably 20 to 100% by mass, more preferably 30 to 100% by mass, It is more preferably 50 to 100% by mass, even more preferably 75 to 100% by mass, even more preferably 85 to 100% by mass, and most preferably substantially 100% by mass. .
• the feeling of burden on the skin is reduced by reducing the heat sensation at high temperature and high humidity.
• the feeling of burden on the skin is reduced by reducing the heat sensation at high temperature and high humidity.
• more preferably 30 to 100% by mass even more preferably 50 to 100% by mass, even more preferably 75 to 100% by mass, and 85 to 100% by mass. More preferably, it is substantially 100% by mass, most preferably.
• the component (A) contains N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide, it further reduces the feeling of burden on the skin by reducing the heat sensation at high temperatures and humidity. From the viewpoint of increasing the , More preferably 30 to 100% by mass, more preferably 50 to 100% by mass, even more preferably 75 to 100% by mass, even more preferably 85 to 100% by mass , substantially 100% by weight.
• component (A) contains ceramides and C 16 -C 22 fatty acids and C 16 -C 22 higher alcohols
• ceramides and C The total content of the C 16 -C 22 fatty acid and the C 16 -C 22 higher alcohol in the total amount of the 16 -C 22 fatty acid and the C 16 -C 22 higher alcohol is preferably 90% by mass or less, It is more preferably 70% by mass or less, still more preferably 50% by mass or less, even more preferably 25% by mass or less, even more preferably 10% by mass or less, and most preferably substantially 0% by mass.
• component (A) contains ceramides and C 16 -C 22 fatty acids
• the sum of ceramides and C 16 -C 22 fatty acids in component (A) is preferably 90% by mass or less, more preferably 70% by mass or less, even more preferably 50% by mass or less, and even more preferably 25% by mass or less. , 10% by mass or less, and most preferably substantially 0% by mass.
• component (A) contains ceramides and C 16 -C 22 higher alcohol
• ceramides in component (A) and C 16 -C 22 higher alcohol The total content of C 16 -C 22 higher alcohols in the total amount of is preferably 90% by mass or less, more preferably 70% by mass or less, further preferably 50% by mass or less, and 25% by mass or less. Even more preferably, 10% by mass or less is particularly preferable, and substantially 0% by mass is most preferable.
• component (A) comprises N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide and C 16 -C 22 fatty acids
• C 16 -C 22 higher alcohols high temperature stability from the viewpoint of improving the
• the total content of C 16 -C 22 fatty acids and C 16 -C 22 higher alcohols is preferably 90% by mass or less, more preferably 70% by mass or less, further preferably 50% by mass or less, and 25% by mass. % or less is more preferable, 10% by mass or less is particularly preferable, and substantially 0% by mass is most preferable.
• the oil component of component (A) can be used alone or in combination of two or more. From the viewpoint of improving the moist feeling of the skin, improving the sustained moist feeling, and reducing the hot feeling, it is 0.1% by mass or more in the total composition, preferably 2% by mass or more, and more preferably 5% by mass or more. It is preferably 20% by mass or less, preferably 15% by mass or less, and more preferably 9% by mass or less.
• the content of component (A) is 0.1 to 20% by mass, preferably 2 to 15% by mass, more preferably 5 to 9% by mass in the total composition.
• the component (B) octamethyltrisiloxane is a compound represented by the following formula, and is a silicone oil with a viscosity of about 1 cs at 25°C.
• the viscosity of component (B) was measured using a B-type viscometer (TVB10 type viscometer, manufactured by Toki Sangyo Co., Ltd.) at 25° C., rotation speed of 12 rpm, measurement time of 60 seconds, rotor No. 1 condition.
• the content of the component (B) improves the glossiness of the appearance, improves the ease of application, improves the moist feeling of the skin after application, improves the duration of the moist feeling of the skin after application, From the viewpoint of reducing the feeling of burden on the skin by reducing the feeling of heat in high humidity, it is 1% by mass or more, preferably 1.5% by mass or more, more preferably 2% by mass or more, in the total composition.
• component (B) is 1 to 30% by mass in the total composition, preferably 1.5 to 20% by mass, more preferably 2 to 13% by mass, and 5 to 8.5% by mass. More preferred.
• the ⁇ -olefin oligomer of component (C) is obtained by polymerizing and hydrogenating straight-chain aliphatic ⁇ -olefins having 4 to 12 carbon atoms.
• the component (C) in the present invention is a component different from the oily component (A) having a melting point of 50 to 150°C.
• the molecular weight of the ⁇ -olefin oligomer of component (C) improves the gloss of the appearance, improves the moist feeling of the skin after application, improves the duration of the moist feeling of the skin after washing, and improves the durability under high temperature and high humidity.
• the molecular weight of the component (C) ⁇ -olefin oligomer is preferably 300-800, more preferably 330-700, even more preferably 360-600, and even more preferably 400-500.
• the molecular weight of component (C) is the weight average molecular weight, which is measured by SEC analysis in terms of polystyrene.
• the viscosity at 25° C. of the ⁇ -olefin oligomer of component (C) improves the glossiness of the appearance, improves the feeling of moisture on the skin after application, improves the persistence of the feeling of moisture on the skin after application, From the viewpoint of reducing the burden on the skin by reducing the feeling of heat under high temperature and high humidity, it is preferably 5 mPa s or more, more preferably 8 mPa s or more, further preferably 12 mPa s or more, and 15 mPa.
• the viscosity of the component (C) ⁇ -olefin oligomer at 25° C. is preferably 5 to 50 mPa ⁇ s, more preferably 8 to 45 mPa ⁇ s, still more preferably 12 to 30 mPa ⁇ s, further preferably 15 to 25 mPa ⁇ s. Even more preferable.
• the viscosity at 25° C. was measured using a B-type viscometer (Model No. TVB10 type viscometer, manufactured by Toki Sangyo Co., Ltd.) at a rotation speed of 12 rpm, a measurement time of 60 seconds, and a rotor No. 1 condition.
• the olefin portion of the ⁇ -olefin oligomer of component (C) is obtained by polymerizing and hydrogenating straight-chain aliphatic ⁇ -olefins having 4 to 12 carbon atoms.
• a linear aliphatic ⁇ -olefin having 8 to 12 carbon atoms is more preferable, and a linear aliphatic ⁇ -olefin having 10 carbon atoms is even more preferable.
• it may be polymerized using a single straight-chain aliphatic ⁇ -olefin having a carbon number, or a straight-chain aliphatic ⁇ -olefin having a plurality of carbon atoms.
• it may be composed of linear aliphatic ⁇ -olefins having a plurality of carbon atoms by polymerizing from group ⁇ -olefins, those polymerized using a single linear aliphatic ⁇ -olefin having carbon atoms are preferred.
• the ⁇ -olefin oligomer of component (C) is obtained by polymerizing linear aliphatic ⁇ -olefin having 4 to 12 carbon atoms. It is preferably from 3 to 6, more preferably from 3 to 4, from the viewpoint of reducing the feeling of burden on the skin by reducing the feeling of heat under high temperature and high humidity.
• the degree of polymerization may consist of components with a single degree of polymerization in component (C), or may consist of components with a plurality of degrees of polymerization. From the viewpoint of reducing the feeling of burden on the skin by improving the duration of the moist feeling of the skin and reducing the feeling of heat in high temperature and high humidity, it is generally preferable to use a component with a plurality of degrees of polymerization.
• the degree of polymerization of component (C) is calculated by dividing the weight average molecular weight by the molecular weight of the monomer. If the monomer is composed of multiple molecules, it is calculated by dividing by the average molecular weight of the monomer.
• the monomer species and composition ratios constituting the ⁇ -olefin oligomer can be determined by general instrumental analysis, for example, by the GC-MS method or the LC-MS method, or in addition to the GC-MS method or the LC-MS method. can be obtained by the NMR method.
• the average molecular weight of the monomer is calculated from the monomer species and composition ratio obtained from the above measurement results.
• Component (C) has a degree of polymerization of 3 to 4 from the viewpoint of reducing the feeling of burden on the skin by improving the duration of the moist feeling of the skin after application and reducing the feeling of heat in high temperature and high humidity.
• the constituent ratio in component (C) is preferably 50% by mass or more, more preferably 65% by mass or more, even more preferably 80% by mass or more, and substantially 100% by mass. is even more preferable.
• the component (C) has a degree of polymerization of 5 or more from the viewpoint of reducing the feeling of burden on the skin by improving the persistence of the moist feeling of the skin after application and reducing the feeling of heat in high temperature and high humidity. is preferably less than 50% by mass in component (C), more preferably less than 35% by mass, even more preferably less than 20% by mass, and substantially free of is even more preferred.
• ⁇ -olefin oligomers of component (C) examples include "SILKFLO 364 (molecular weight: 444, viscosity at 25°C: 23.7 mPa ⁇ s)” and “SILKFLO 366 (molecular weight: 556, viscosity at 25°C: 43.7 mPa ⁇ s)”. 6 mPa ⁇ s)” (manufactured by Vantage).
• the content of component (C) is added in the entire composition from the viewpoint of improving the glossiness of the appearance, improving the ease of application, improving the continuation of the moist feeling of the skin after application, and reducing the hot feeling. It is 1% by mass or more, preferably 2% by mass or more, more preferably 4% by mass or more, and 20% by mass or less, preferably 13% by mass or less, and more preferably 8% by mass or less.
• the content of component (C) is 1 to 20% by mass, preferably 2 to 13% by mass, more preferably 4 to 8% by mass in the total composition.
• the mass ratio (A)/(B) of component (A) to component (B) improves the glossiness of the appearance, improves the ease of application, and improves the moist feeling of the skin after application. It is preferably 0.1 or more, from the viewpoint of reducing the feeling of burden on the skin by improving the persistence of the moist feeling of the skin after application and reducing the feeling of heat in high temperature and high humidity. 38 or more is more preferable, 0.6 or more is more preferable, 1 or more is still more preferable, 1.08 or more is particularly preferable, 10 or less is preferable, 5 or less is more preferable, and 3.3 or less is even more preferable. 9 or less is more preferable, and 1.4 or less is particularly preferable.
• the mass ratio (A)/(B) of component (A) to component (B) is preferably 0.1 to 10, more preferably 0.38 to 5, and 0.6 to 3.3. is more preferred, 1 to 1.9 is even more preferred, and 1.08 to 1.4 is even more preferred.
• the mass ratio (A)/(C) of component (A) to component (C) improves the glossiness of the appearance, improves the ease of application, and improves the moist feeling of the skin after application. From the viewpoint of improving the duration of the moist feeling of the skin after application, it is preferably 0.1 or more, more preferably 0.4 or more, further preferably 0.67 or more, and even more preferably 1.1 or more. It is preferably 10 or less, more preferably 5 or less, still more preferably 3.3 or less, and even more preferably 2.1 or less. Further, the mass ratio (A)/(C) of component (A) to component (C) is preferably 0.1 to 10, more preferably 0.4 to 5, and 0.67 to 3.3. is more preferred, and 1.1 to 2.1 is even more preferred.
• the mass ratio (B)/(C) of the component (B) to the component (C) improves the gloss of the appearance, improves the ease of application, and improves the moist feeling of the skin after application. It is preferably 0.1 or more, from the viewpoint of reducing the feeling of burden on the skin by improving the persistence of the moist feeling of the skin after application and reducing the feeling of heat in high temperature and high humidity. 48 or more is more preferable, 0.6 or more is more preferable, 0.8 or more is still more preferable, 0.93 or more is particularly preferable, 10 or less is preferable, 5 or less is more preferable, 3.3 or less is more preferable, 1.8 or less is more preferable, and 1.47 or less is particularly preferable.
• the mass ratio (B)/(C) of component (B) to component (C) is preferably 0.1 to 10, more preferably 0.48 to 5, and 0.6 to 3.3. is more preferred, 0.8 to 1.8 is even more preferred, and 0.93 to 1.47 is even more preferred.
• Component (D) is a nonionic surfactant, and known ones can be used.
• the component (D) of the present invention is a component different from the oily component (A) having a melting point of 50 to 150°C.
• polyoxyethylene sorbitan fatty acid esters include those having an average addition mole number of polyoxyethylene chains constituting the polyoxyethylene sorbitan fatty acid ester of 10 to 20. Specifically, polyoxyethylene sorbitan monostearate ( 20E.O.) and the like.
• polyoxyethylene hydrogenated castor oil include those in which the average number of added moles of polyoxyethylene chains constituting the polyoxyethylene hydrogenated castor oil is 10 to 100. Specifically, PEG-10 hydrogenated castor oil, etc. is mentioned.
• polyoxyethylene hydrogenated castor oil fatty acid ester include those having an average added mole number of polyoxyethylene chains constituting the polyoxyethylene hydrogenated castor oil fatty acid ester of 10 to 100.
• alkyl glyceryl ether include 2-ethylhexyl glyceryl ether, isododecyl glyceryl ether, isostearyl glyceryl ether and the like.
• silicone-based surfactants include polyether-modified silicones such as PEG-3 dimethicone, PEG-10 dimethicone, and PEG-12 dimethicone, polyether/alkyl co-modified silicones, polyglycerin-modified silicones, polyglycerin-modified silicones, and polyglycerin-modified silicones.
• Examples include alkyl co-modified silicone, alkyl silicone dendron polyether-modified silicone, and the like.
• silicone-based surfactants include those in which the silicone chain of the main chain is linear or branched, and those in which the silicone chain is crosslinked or non-crosslinked.
• the component (D) from the viewpoint of forming a stable water-in-oil emulsion composition, it improves the stability at high temperatures, improves the ease of application, improves the moist feeling of the skin after application, At least one or more selected from silicone surfactants, polyoxyethylene hydrogenated castor oil, alkylglyceryl ethers, and sorbitan fatty acid esters, from the viewpoint of reducing skin burden by reducing heat sensation in high humidity. More preferably, it contains at least one or more selected from silicone surfactants, polyoxyethylene hydrogenated castor oil, and alkyl glyceryl ethers, and alkyl glyceryl ethers and silicone surfactants. It is further preferable to contain at least one or two or more of
• the average added mole number of polyoxyethylene chains constituting the polyoxyethylene hydrogenated castor oil is preferably 10 to 100, more preferably 10 to 60, and 10 to 40. is more preferred, 10 to 20 is even more preferred, and 10 is even more preferred. Sorbitan monostearate is preferred as the sorbitan fatty acid ester.
• the alkyl glyceryl ether one or more selected from 2-ethylhexyl glyceryl ether, isododecyl glyceryl ether and isostearyl glyceryl ether are preferable, and isostearyl glyceryl ether is more preferable.
• the silicone-based surfactant is preferably at least one or more selected from polyether-modified silicone, polyglycerin-modified silicone, polyether/alkyl co-modified silicone, and polyglycerin/alkyl co-modified silicone. , more preferably at least one or more selected from polyether/alkyl co-modified silicones, more preferably polyether-modified silicones, more preferably polyether-modified silicones in which the main chain silicone chain is linear, and PEG- At least one or two or more selected from 3 dimethicone, PEG-10 dimethicone, and PEG-12 dimethicone are particularly preferred, and at least one or more selected from PEG-3 dimethicone and PEG-12 dimethicone are preferred.
• alkyl glyceryl ether and a silicone surfactant at the same time.
• Isostearyl glyceryl ether and It preferably contains polyether-modified silicone, more preferably contains isostearyl glyceryl ether and one or more selected from PEG-3 dimethicone, PEG-10 dimethicone, and PEG-12 dimethicone, and isostearyl glyceryl ether and one or more selected from PEG-3 dimethicone and PEG-12 dimethicone, more preferably isostearyl glyceryl ether and PEG-3 dimethicone.
• component (D) from the viewpoint of forming a stable oil-in-water emulsion composition, it improves the stability at high temperatures, improves the ease of application, improves the moist feeling of the skin after application, Silicone surfactants, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acids, from the viewpoint of reducing the burden on the skin by reducing the feeling of heat in humidity. It preferably contains at least one or two or more selected from esters, and more preferably contains at least one or two or more selected from sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene hydrogenated castor oil.
• sorbitan fatty acid ester sorbitan monostearate
• polyoxyethylene sorbitan fatty acid ester the average number of added moles of polyoxyethylene chains constituting the polyoxyethylene sorbitan fatty acid ester is preferably 10 to 20, more preferably 20, and polyoxyethylene sorbitan monostearate (20 E.O. .) is more preferred.
• polyoxyethylene hydrogenated castor oil the average added mole number of polyoxyethylene chains constituting the polyoxyethylene hydrogenated castor oil is preferably 20 to 100, more preferably 40 to 80, and even more preferably 50 to 60.
• the average added mole number of the polyoxyethylene chains constituting the polyoxyethylene hydrogenated castor oil fatty acid ester is preferably 20 to 100, more preferably 40 to 80, and more preferably 50 to 60. More preferred.
• the nonionic surfactant of component (D) is stable in oil from the viewpoint of not impairing the water resistance due to sweat when applied under high temperature and humidity.
• the HLB value is preferably 1 to 7, more preferably 1 to 6, and even more preferably 2 to 6, from the viewpoint of forming an aqueous emulsion composition and improving stability at room temperature and high temperature.
• the component (D) is composed of two or more surfactants, a stable water-in-oil emulsion composition is formed from the viewpoint of not impairing the water resistance due to perspiration when applied under high temperature and high humidity.
• the HLB value is preferably 1 to 7 only, more preferably 1 to 6 only, and even more preferably 2 to 6 only.
• the nonionic surfactant of component (D) has an HLB value of 8 to 18 from the viewpoint of forming a stable oil-in-water emulsion composition. is preferred, 8 to 16 are more preferred, and 8 to 14 are even more preferred.
• the HLB value is 8 from the viewpoint of forming a stable water-in-oil emulsion composition and improving the stability at high temperatures. It preferably consists of only ⁇ 18, more preferably consists of 8-16 only, and even more preferably consists of 8-14 only.
• HLB Hydrophilic-Lipophilic Balance
• HLB of mixed surfactant is calculated
• the HLB of the mixed surfactant is obtained by averaging the HLB values of each nonionic surfactant based on the blending ratio.
• Wx indicates the mass (g) of the nonionic surfactant X having the value of HLBx.
• nonionic surfactants of component (D) include "Penetol GE-IS (HLB: 2)” (manufactured by Kao Corporation) as isostearyl glyceryl ether, and PEG-3 dimethicone as polyether-modified silicone.
• the component (D) nonionic surfactant can be used alone or in combination of two or more. Therefore, it is preferably 0.1% by mass or more in the total composition, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, even more preferably 1.5% by mass or more, and 8% by mass
• the following is preferable, 5% by mass or less is more preferable, 3.5% by mass or less is even more preferable, and 3% by mass or less is even more preferable.
• the content of component (D) is preferably 0.1 to 8% by mass, more preferably 0.5 to 5% by mass, and even more preferably 1 to 3.5% by mass in the total composition. 1.5 to 3% by mass is even more preferable.
• the water content of component (E) is 10% by mass or more in the total composition from the viewpoint of forming a stable water-in-oil emulsion composition and improving the moist feeling of the skin after application. is preferably 15% by mass or more, more preferably 20% by mass or more, preferably 85% by mass or less, more preferably 75% by mass or less, and even more preferably 70% by mass or less.
• the water content of component (E) is preferably 10 to 85% by mass, more preferably 15 to 75% by mass, and even more preferably 20 to 70% by mass in the total composition.
• the cosmetic of the present invention preferably further contains a polyhydric alcohol, which can improve the feeling of moisture on the skin after application and improve the duration of the feeling of moisture on the skin after application.
• a polyhydric alcohol is a compound having two or more hydroxyl groups in the molecule, and may be any one as long as it is used in ordinary cosmetics.
• Dihydric alcohols include, for example, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, propanediol and the like.
• trihydric alcohols include glycerin and trimethylolpropane.
• tetrahydric alcohols examples include diglycerin and erythritol.
• polyhydric alcohols having a valence of 5 or more include polyglycerol such as triglycerin; glucose, maltose, maltitose, sucrose, xylitol, sorbitol, malbitol, polyoxyethylene methyl glucoside, polyoxyethylene ethyl glucoside, polyoxyethylene propylene glucoside, etc. of sugars and sugar alcohols.
• the polyhydric alcohol is selected from at least dihydric alcohols, trihydric alcohols, tetrahydric alcohols, and sugar alcohols from the viewpoint of improving the moist feeling of the skin after application and improving the duration of the moist feeling of the skin after application. It preferably contains one or more, more preferably at least one or more selected from dihydric alcohols, trihydric alcohols and tetrahydric alcohols, at least propanediol, dipropylene glycol, 1, It is more preferable to contain one or more selected from 3-butylene glycol, glycerin and diglycerin, and at least one or more selected from dipropylene glycol, 1,3-butylene glycol and glycerin. is even more preferred, and containing at least glycerin is even more preferred.
• Polyhydric alcohols can be used singly or in combination of two or more, and the total content thereof is from the viewpoint of improving the moist feeling of the skin after application and improving the duration of the moist feeling of the skin after application. Therefore, it is preferably 1% by mass or more in the total composition, more preferably 5% by mass or more, further preferably 10% by mass or more, preferably 30% by mass or less, more preferably 20% by mass or less, and 15% by mass. More preferred are: The polyhydric alcohol content is preferably 1 to 30% by mass, more preferably 5 to 20% by mass, and even more preferably 10 to 15% by mass in the total composition.
• the emulsified composition of the present invention preferably further contains an anionic surfactant, which forms a stable oil-in-water emulsified composition, improves the moist feeling of the skin after application, and improves the skin's moisture after application. Sustainability of moist feeling can be improved.
• Any anionic surfactant may be used as long as it is used in ordinary emulsion compositions, such as N-lauroyl-L-glutamic acid, N-stearoyl-L-glutamic acid, N-myristoyl-L-glutamic acid, and the like.
• N-acyl amino acids such as N-acylglutamic acid and salts thereof
• N-acyl methyl taurine such as N-myristoyl-N-methyl taurine, N-lauroyl-N-methyl taurine, N-stearoyl-N-methyl taurine and Salts thereof, fatty acids and salts thereof and the like are included.
• N-acyl It preferably contains one or more selected from glutamic acid and their salts, N-acylmethyltaurine and their salts, N-stearoyl-L-glutamic acid and its salts, N-stearoyl-N-methyltaurine and It more preferably contains one or more selected from salts thereof, and more preferably contains one or more selected from sodium N-stearoyl-L-glutamate and sodium N-stearoyl-N-methyltaurate.
• Anionic surfactants can be used alone or in combination of two or more, and the total content is from the viewpoint of forming a stable oil-in-water emulsion composition and improving the moist feeling of the skin after application. From the viewpoint of improving the durability of the moist feeling of the skin after application, it is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and 0.5% by mass or more in the total composition. More preferably, it is 5% by mass or less, more preferably 3% by mass or less, and even more preferably 1% by mass or less.
• the content of the anionic surfactant is preferably 0.1 to 5% by mass, more preferably 0.3 to 3% by mass, and even more preferably 0.5 to 1% by mass in the total composition. .
• the emulsified composition of the present invention contains components that are usually used in external preparations, cosmetics, and cosmetics, such as oily components other than components (A), (B) and (C), and component (D). ) and surfactants other than anionic surfactants, powders, UV inhibitors other than powders, polymer compounds, antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants medicines and quasi-drugs such as agents, disinfectants, skin activators, moisturizing agents other than polyhydric alcohols, cooling agents, whitening agents, wrinkle removers, anti-inflammatory agents, steroids, immunosuppressants, molecular targeted drugs, etc. It can contain active ingredients and the like.
• the emulsified composition of the present invention is a powder that is not soluble in the emulsified composition, specifically an inorganic powder that is generally used as a coloring pigment, an ultraviolet scattering agent, an organic-inorganic composite powder, a surface-modified Inorganic/organic powder improves the ease of application, improves the continuation of the moist feeling of the skin after application, and reduces the feeling of heat in high temperature and high humidity, thereby reducing the burden on the skin.
• It is preferably 30% by mass or less in the entire composition, more preferably 20% by mass or less, still more preferably 10% by mass or less, even more preferably 5% by mass or less, and substantially not contained.
• UV inhibitors other than powder it improves the ease of application, improves the continuation of the moist feeling of the skin after application, and reduces the feeling of heat in high temperature and high humidity, thereby reducing the burden on the skin. From the viewpoint of reducing Especially preferred.
• the emulsified composition of the present invention can be produced by a conventional method.
• the emulsified composition of the present invention can be either a water-in-oil emulsified composition, an oil-in-water emulsified composition, or the like.
• a water-in-oil emulsified composition is preferred from the viewpoint of improving persistence.
• the emulsified composition of the present invention can stably contain a high melting point oily component such as ceramides, and maintains a moist and fresh feeling on the skin after application.
• a high melting point oily component such as ceramides
• the feeling of heat can be reduced, and as a result, the feeling of burden on the skin can be reduced.
• the appearance of the emulsified composition has a glossy appearance, it is easy to spread when applied to the skin, and a smooth feeling of use can be obtained. Even an emulsified composition with guaranteed properties is obtained.
• the emulsified composition of the present invention can be used as a cosmetic or an external preparation for skin, and is preferably used as a cosmetic.
• the dosage form of the emulsified composition of the present invention includes cream, milky lotion, etc. From the viewpoint of enhancing the effect of the present invention, cream is preferred.
• Specific examples of cosmetics include skin care emulsions, skin care creams, BB creams, BB emulsions, beauty essences, hand creams, lip care agents, sunscreens, etc. for the skin of the face or body, hair setting agents for hair, It can be used as a hair conditioner or the like.
• skin care emulsion, skin care cream, BB cream, BB emulsion, beauty essence, hand cream, and lip care agent for face or body skin are preferred from the viewpoint of sufficiently exhibiting the effects of the present invention, and skin care cream is preferred. more preferred.
• an ultraviolet scattering agent and an ultraviolet inhibitor in the emulsified composition of the present invention it can be used as a sunscreen agent, but it improves the ease of application and improves the moist feeling of the skin after application.
• cosmetics other than sunscreen agents from the viewpoint of reducing the feeling of burden on the skin by improving the persistence of the moist feeling of the skin after application and reducing the feeling of heat in high temperature and high humidity. .
• the present invention further discloses the following compositions and the like.
• Component (A) is preferably ceramides (in particular, natural ceramides, sphingosines, compounds of the general formulas (1) and (2)), C 16 -C 22 fatty acids, C 16 -C 22 higher One or two or more selected from alcohols, more preferably one or two or more selected from ceramides and C 16 -C 22 higher alcohols, more preferably ceramides, generally Formula (1) and general formula (2):
• R 1 represents a hydrocarbon group having 10 to 26 carbon atoms
• R 2 represents a hydrocarbon group having 9 to 25 carbon atoms
• X represents -(CH 2 ) n - (where n is 2 to represents an integer of 6).
• R 3 and R 4 are the same or different and represent an optionally hydroxylated hydrocarbon group having 1 to 40 carbon atoms
• R 5 represents an alkylene group having 1 to 6 carbon atoms or a single bond
• R 6 represents a hydrogen atom, an alkoxy group having 1 to 12 carbon atoms or a 2,3-dihydroxypropyloxy group, provided that when R 5 is a single bond, R 6 is a hydrogen atom.
• it contains one or more compounds selected from, more preferably contains a compound of general formula (1), N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide
• Component (A) is preferably ceramides (in particular, natural ceramides, sphingosines, compounds of the general formulas (1) and (2)), C 16 -C 22 fatty acids, C 16 -C 22 higher One or two or more selected from alcohols, more preferably one or two or more selected from ceramides and C 16 -C 22 higher alcohols, more preferably ceramides, the general formula (1) and More preferably, one or more compounds selected from the general formula (2), particularly preferably the compound of the general formula (1), N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide
• the emulsified composition according to ⁇ 1> or ⁇ 2> which is particularly preferred.
• component (A) contains one or more selected from ceramides, C 16 -C 22 fatty acids, and C 16 -C 22 higher alcohols
• the ceramide occupying component (A) The total content of C 16 -C 22 fatty acids, C 16 -C 22 fatty acids and C 16 -C 22 higher alcohols in component (A) is preferably 20 to 100% by mass, more preferably 30 to 100% by mass, More preferably 50 to 100% by mass, even more preferably 75 to 100% by mass, even more preferably 85 to 100% by mass, and most preferably substantially 100% by mass, ⁇ 1> to ⁇ 3>
• the content of ceramides in component (A) is preferably 20 to 100% by mass in component (A), 30 to 100% by mass is more preferable, 50 to 100% by mass is more preferable, 75 to 100% by mass is even more preferable, 85 to 100% by mass is particularly preferable, and substantially 100% by mass is most prefer
• the content of one or more compounds selected from the general formula (2) is preferably 20 to 100% by mass, more preferably 30 to 100% by mass, and 50 to 100% by mass in component (A). More preferably 75 to 100% by mass, even more preferably 85 to 100% by mass, most preferably substantially 100% by mass, any of ⁇ 1> to ⁇ 5> 2.
• component (A) contains N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide, N-(hexadecyloxyhydroxypropyl) occupying component (A)
• the content of -N-hydroxyethylhexadecanamide in component (A) is preferably 20 to 100% by mass, more preferably 30 to 100% by mass, even more preferably 50 to 100% by mass, 75 to 100% by mass is more preferable, 85 to 100% by mass is particularly preferable, and substantially 100% by mass is most preferable, the emulsion composition according to any one of ⁇ 1> to ⁇ 6>. .
• component (A) contains ceramides, C 16 -C 22 fatty acids, and C 16 -C 22 higher alcohols
• the ceramides, C 16 -C 22 fatty acids, and C The total content of the C 16 -C 22 fatty acid and the C 16 -C 22 higher alcohol in the total amount with the 16 -C 22 higher alcohol is preferably 90% by mass or less, more preferably 70% by mass or less. preferably 50% by mass or less, even more preferably 25% by mass or less, even more preferably 10% by mass or less, most preferably substantially 0% by mass, any of ⁇ 1> to ⁇ 7> 1.
• component (A) contains ceramides and C 16 -C 22 fatty acids, C 16 -C 22 in the total amount of ceramides and C 16 -C 22 fatty acids in component (A)
• the total content of fatty acids is preferably 90% by mass or less, more preferably 70% by mass or less, even more preferably 50% by mass or less, even more preferably 25% by mass or less, and particularly 10% by mass or less.
• component (A) contains ceramides and C 16 -C 22 higher alcohols
• the total content of C 22 higher alcohols is preferably 90% by mass or less, more preferably 70% by mass or less, even more preferably 50% by mass or less, even more preferably 25% by mass or less, and 10% by mass.
• component (A) contains N-(hexadecyloxyhydroxypropyl)-N-hydroxyethylhexadecanamide, C 16 -C 22 fatty acid, and C 16 -C 22 higher alcohol
• the total content of C 16 -C 22 higher alcohols is preferably 90% by mass or less, more preferably 70% by mass or less, even more preferably 50% by mass or less, and even more preferably 25% by mass or less
• the content of component (A) is preferably 2% by mass or more in the total composition, more preferably 5% by mass or more, preferably 15% by mass or less, and more preferably 9% by mass or less.
• the content of component (B) is preferably 1.5% by mass or more in the total composition, more preferably 2% by mass or more, further preferably 5% by mass or more, and 20% by mass or less.
• the emulsion composition according to any one of the above ⁇ 1> to ⁇ 12> which is preferably 13% by mass or less, and further preferably 8.5% by mass or less.
• the ⁇ -olefin oligomer of component (C) preferably has a molecular weight of 300 or more, more preferably 330 or more, even more preferably 360 or more, even more preferably 400 or more, and preferably 800 or less, and 700.
• the ⁇ -olefin oligomer of component (C) has a viscosity at 25°C of preferably 5 mPa ⁇ s or more, more preferably 8 mPa ⁇ s or more, still more preferably 12 mPa ⁇ s or more, and 15 mPa ⁇ s or more.
• emulsified composition is more preferably 50 mPa s or less, more preferably 45 mPa s or less, still more preferably 30 mPa s or less, and even more preferably 25 mPa s or less, any one of ⁇ 1> to ⁇ 14> above emulsified composition.
• the olefin part of the ⁇ -olefin oligomer of component (C) is obtained by polymerizing and hydrogenating a linear aliphatic ⁇ -olefin having 4 to 12 carbon atoms, preferably 6 to 12 carbon atoms.
• a straight-chain aliphatic ⁇ -olefin is preferable, a straight-chain aliphatic ⁇ -olefin having 8 to 12 carbon atoms is more preferable, and a straight-chain aliphatic ⁇ -olefin having 10 carbon atoms is further preferable, the above ⁇ 1> to ⁇ 15
• the ⁇ -olefin oligomer of component (C) is obtained by polymerizing a linear aliphatic ⁇ -olefin having 4 to 12 carbon atoms, and the degree of polymerization is preferably 3 to 6,
• Component (C) preferably has a degree of polymerization of 3 to 4 in the composition ratio of 50% by mass or more in component (C), more preferably 65% by mass or more,
• Component (C) preferably comprises less than 50% by mass of component (C) having a degree of polymerization of 5 or more, more preferably less than 35% by mass, more preferably 20% by mass.
• the content of component (C) is preferably 2% by mass or more in the total composition, more preferably 4% by mass or more, preferably 3% by mass or less, and more preferably 8% by mass or less.
• the mass ratio (A)/(B) of component (A) to component (B) is preferably 0.1 or more, more preferably 0.38 or more, and even more preferably 0.6 or more.
• emulsified composition according to any one of ⁇ 1> to ⁇ 20>, which is preferable.
• the mass ratio (A)/(C) of component (A) to component (C) is preferably 0.1 or more, more preferably 0.4 or more, and even more preferably 0.67 or more. , More preferably 1.1 or more, preferably 10 or less, more preferably 5 or less, more preferably 3.3 or less, even more preferably 2.1 or less, any one of the above ⁇ 1> to ⁇ 21> The emulsion composition described.
• the mass ratio (B)/(C) of component (B) to component (C) is preferably 0.1 or more, more preferably 0.48 or more, and even more preferably 0.6 or more.
• emulsified composition according to any one of ⁇ 1> to ⁇ 22>, which is particularly preferred.
• Component (D) is preferably at least one or more selected from silicone surfactants, polyoxyethylene hydrogenated castor oil, alkylglyceryl ethers, and sorbitan fatty acid esters, agent, polyoxyethylene hydrogenated castor oil, alkyl glyceryl ether is more preferable, and at least one or more selected from alkyl glyceryl ether and silicone surfactant is more preferable.
• silicone surfactants polyoxyethylene hydrogenated castor oil, alkylglyceryl ethers, and sorbitan fatty acid esters
• agent polyoxyethylene hydrogenated castor oil, alkyl glyceryl ether is more preferable
• at least one or more selected from alkyl glyceryl ether and silicone surfactant is more preferable.
• the emulsion composition according to any one of ⁇ 1> to ⁇ 23>.
• Component (D) is preferably a silicone-based surfactant and is at least selected from polyether-modified silicone, polyglycerin-modified silicone, polyether/alkyl co-modified silicone, and polyglycerin/alkyl co-modified silicone.
• the emulsion composition according to any one of ⁇ 1> to ⁇ 24> above, which is more preferably at least one selected from.
• Component (D) preferably contains an alkyl glyceryl ether and a silicone surfactant at the same time, more preferably isostearyl glyceryl ether and a polyether-modified silicone, isostearyl glyceryl ether and PEG-3 It is more preferable to contain one or more selected from dimethicone, PEG-10 dimethicone, and PEG-12 dimethicone, and one or more selected from isostearyl glyceryl ether, PEG-3 dimethicone, and PEG-12 dimethicone. is more preferable, and it is even more preferable that the emulsion composition contains isostearyl glyceryl ether and PEG-3 dimethicone, according to any one of ⁇ 1> to ⁇ 25>.
• the nonionic surfactant of component (D) preferably has an HLB value of 1 to 7, more preferably 1 to 6, 2 to 6 are more preferable, the emulsion composition according to any one of the above ⁇ 1> to ⁇ 26>.
• component (D) preferably contains a silicone surfactant with an HLB of 1 to 7.
• the nonionic surfactant of component (D) preferably has an HLB value of 8 to 18, more preferably 8 to 16.
• the emulsified composition according to any one of ⁇ 1> to ⁇ 26>, wherein to 14 are more preferable.
• the content of the nonionic surfactant of component (D) is preferably 0.1% by mass or more in the entire composition, more preferably 0.5% by mass or more, and 1% by mass or more is more preferable, 1.5% by mass or more is more preferable, 8% by mass or less is preferable, 5% by mass or less is more preferable, 3.5% by mass or less is more preferable, and 3% by mass or less is even more preferable.
• the water content of component (E) is preferably 10% by mass or more in the total composition, more preferably 15% by mass or more, still more preferably 20% by mass or more, and 85% by mass or less.
• the polyhydric alcohol preferably contains at least one or more selected from dihydric alcohols, trihydric alcohols, tetrahydric alcohols and sugar alcohols, and at least dihydric alcohols, trihydric alcohols and tetrahydric alcohols It is more preferable to contain one or more selected from, more preferably one or more selected from at least propanediol, dipropylene glycol, 1,3-butylene glycol, glycerin and diglycerin. , dipropylene glycol, 1,3-butylene glycol, and at least one selected from glycerin.
• the content of the polyhydric alcohol is preferably 1% by mass or more in the entire composition, more preferably 5% by mass or more, still more preferably 10% by mass or more, preferably 30% by mass or less, and 20
• the anionic surfactant is preferably one or more selected from N-acylglutamic acid and salts thereof, N-acylmethyltaurine and salts thereof, and N-stearoyl-L- More preferably, one or more selected from glutamic acid and its salts, N-stearoyl-N-methyltaurine and its salts, sodium N-stearoyl-L-glutamate, sodium N-stearoyl-N-methyltaurate.
• the content of the anionic surfactant is preferably 0.1% by mass or more in the total composition, more preferably 0.3% by mass or more, further preferably 0.5% by mass or more,
• the content of the powder that is not soluble in the emulsion composition is preferably 30% by mass or less in the entire composition, more preferably 20% by mass or less, further preferably 10% by mass or less.
• the content of the UV inhibitor other than the powder is preferably 20% by mass or less in the total composition, more preferably 15% by mass or less, further preferably 10% by mass or less, and 5% by mass or less
• ⁇ 40> The emulsion composition according to any one of ⁇ 1> to ⁇ 39>, which is preferably a water-in-oil emulsion composition.
• ⁇ 41> The emulsion composition according to any one of ⁇ 1> to ⁇ 39>, which is preferably an oil-in-water emulsion composition.
• ⁇ 42> The emulsified composition according to any one of ⁇ 1> to ⁇ 41>, which is preferably an emulsified cosmetic.
• ⁇ 43> The emulsified composition according to any one of ⁇ 1> to ⁇ 42>, preferably in the form of a cream, more preferably in a skin care cream.
• Examples 1-20 and Comparative Examples 1-4 A water-in-oil type emulsified cosmetic having the composition shown in Tables 1 to 3 was produced, and the glossiness of the emulsified cosmetic, ease of application, moist feeling of the skin after application, persistence of moist feeling, heat sensation and stability. evaluated. The results are also shown in Tables 1 to 3. Comparative Examples 1 and 3 could not be evaluated because they were separated immediately after production, and were described as “evaluable”. The stability was also evaluated as "B" because it separated immediately after.
• Ease of spreading Four professional evaluators applied about 0.2 g of each emulsified cosmetic at 25 ° C. to the forearm of the arm washed with a detergent (Curel facial cleanser, manufactured by Kao Corporation), and evaluated the ease of application when applied. The hardness was evaluated according to the following criteria. The results were indicated by the total score of four professional evaluators. It should be noted that the term "easy to spread” means that it can be spread smoothly. 4: Very easy to spread. 3: Easy to spread. 2: Not very easy to spread. 1: Clearly difficult to spread.
• Heat sensation Four professional evaluators apply about 0.2 g of each emulsified cosmetic to the forearm that has been washed with a cleanser (Curel facial cleanser, manufactured by Kao Corporation) in a hot and humid environment (temperature: 40°C, humidity: 75%). After 10 minutes of acclimatization by going down, the degree of burden on the skin due to heat sensation was evaluated according to the following criteria. The results were indicated by the total score of four professional evaluators.
• the heat sensation means a sensation of being filled with heat when the emulsified cosmetic is applied to the skin and the skin is exposed to high temperature and high humidity above a certain level. When the feeling of heat is reduced, there is a feeling that the burden on the skin is also reduced. 4: No feeling of hotness, such as tingling heat. 3: A very slight sensation of heat is felt. 2: A feeling of hotness is felt as if heat is confined. 1: A strong sense of heat is felt as if the heat is staying hot.

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