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WO2025177950A1 - Produit cosmétique en émulsion de type huile dans l'eau - Google Patents

Produit cosmétique en émulsion de type huile dans l'eau

Info

Publication number
WO2025177950A1
WO2025177950A1 PCT/JP2025/004850 JP2025004850W WO2025177950A1 WO 2025177950 A1 WO2025177950 A1 WO 2025177950A1 JP 2025004850 W JP2025004850 W JP 2025004850W WO 2025177950 A1 WO2025177950 A1 WO 2025177950A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
water
water emulsion
mass
emulsion cosmetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2025/004850
Other languages
English (en)
Japanese (ja)
Inventor
大塚結加
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JO Cosmetics Co Ltd
Original Assignee
JO Cosmetics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JO Cosmetics Co Ltd filed Critical JO Cosmetics Co Ltd
Publication of WO2025177950A1 publication Critical patent/WO2025177950A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • 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
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • 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

Definitions

  • the present invention relates to an oil-in-water emulsion cosmetic suitable as a base cosmetic or sunscreen cosmetic, and more specifically to an oil-in-water emulsion cosmetic that has a smooth feel and excellent storage stability.
  • Oil-in-water emulsion cosmetics formed by dispersing oil in a water phase, provide a fresher feel when used compared to water-in-oil emulsion cosmetics, formed by dispersing water in an oil phase, and are therefore widely used as makeup cosmetics such as foundation.
  • oil-in-water emulsion cosmetics have traditionally been blended with powder components such as silica powder and silicone elastomers.
  • Patent Document 1 describes a beaulleté cosmetic containing silicic anhydride, titanium mica and/or titanium dioxide-coated borosilicate glass flakes, and crosslinked methylpolysiloxane (see claim 1), and describes its formulation as an oil-in-water emulsion cosmetic (see example 1 in paragraph 0023).
  • This cosmetic was developed primarily to achieve a visual harmony between the Vietnameselleté and face (see paragraph 0009), and describes that the preferred blend amount of silicic anhydride is 10-30% by mass, more preferably 15-25% by mass, and the preferred blend amount of crosslinked methylpolysiloxane is 0.1-20% by mass, more preferably 1-10% by mass (see paragraphs 0012 and 0014).
  • Patent Document 2 describes an oil-in-water emulsion cosmetic containing crosslinked methylpolysiloxane and spherical powder (see claim 1).
  • This cosmetic was developed with the objective of making pores less noticeable with a natural finish (see paragraph 0007), and describes that the preferred blend amount of spherical powder such as silica is 0.005 to 10% by mass, more preferably 0.01 to 1% by mass (see paragraph 0011), and that the preferred blend amount of crosslinked methylpolysiloxane is 0.1 to 20% by mass, more preferably 1 to 10% by mass (see paragraph 0010).
  • Oil-in-water emulsion cosmetics containing spherical powders such as silicic anhydride (silica) have been well known for some time.
  • silicic anhydride silicon
  • Patent Document 3 describes a skin topical preparation containing a dibasic acid ester, spherical powder, and carboxyvinyl polymer and/or its salt (see claim 1).
  • This topical preparation was developed with the objective of suppressing the loss of aesthetic appearance caused by excessive lipid secretion (see paragraph 0005), and describes that the preferred blend amount of the spherical powder is 0.01 to 20% by mass, more preferably 0.1 to 15% by mass (see paragraph 0009), and that the preferred blend amount of the carboxyvinyl polymer and/or its salt is 0.05 to 2% by mass, more preferably 0.1 to 1% by mass (see paragraph 0010).
  • the present invention was completed against this background, and its purpose is to provide an oil-in-water emulsion cosmetic that has a smooth feel and excellent storage stability, while retaining the characteristic fresh feel of oil-in-water cosmetics.
  • the present invention provides an oil-in-water emulsion cosmetic comprising (A) water, (B) a hydrophilic surfactant, (C) silica powder, (D) a silicone elastomer, and (E) an acrylamide-based thickener.
  • the oil-in-water emulsion cosmetic of the present invention retains the characteristic fresh feel of oil-in-water cosmetics, while also exhibiting excellent smoothness and storage stability.
  • the oil-in-water emulsion cosmetic of the present invention contains, as essential ingredients, (A) water, (B) hydrophilic surfactant, (C) silica powder, (D) silicone elastomer, and (E) acrylamide-based thickener. Each component is described in detail below.
  • the cosmetic preparation of the present invention is an oil-in-water emulsion and therefore contains water as an essential component.
  • the water is not particularly limited as long as it is water that is commonly used in the preparation of cosmetics, and may be ion-exchanged water, distilled water, or the like.
  • the water content is usually 30 to 60% by mass, preferably 40 to 50% by mass.
  • a hydrophilic surfactant is contained to stabilize the oil-in-water emulsion.
  • the hydrophilic surfactant is not particularly limited as long as it is one that is commonly used in the technical field of oil-in-water emulsion cosmetics, and specific examples thereof include, for example, anionic surfactants such as higher fatty acid salts such as sodium stearate and potassium isostearate, acylated amino acid salts such as sodium stearoyl glutamate and sodium lauroyl glycine, alkyl ether carboxylates, and alkyl sulfates; amphoteric surfactants such as aminoacetic acid betaine-type amphoteric surfactants such as lauryl betaine, aminopropionic acid-type amphoteric surfactants such as lauramidopropyl betaine, and sulfobetaine-type amphoteric surfactants such as lauryl hydroxysultaine; Nonionic surfactants such as
  • the HLB value of the hydrophilic surfactant there are no particular restrictions on the HLB value of the hydrophilic surfactant as long as an oil-in-water emulsion cosmetic is obtained, but it is preferable that it be 8 or higher, and its content is preferably 0.1 to 3 mass% of the total cosmetic.
  • the inclusion of a hydrophilic surfactant improves the stability of the emulsion, but if the content is too high, the water resistance of the applied film will decrease.
  • hydrophilic surfactants can improve the stability of the emulsion without reducing the water resistance of the coating film.
  • alkali metal salts of isostearic acid such as sodium salt and potassium salt are particularly preferred.
  • silica powder is contained for the purpose of imparting long-lasting cosmetic wear and a smooth feel when used.
  • the silica is preferably spherical, and its volume-average particle size is usually 3 to 20 ⁇ m, preferably 4 to 15 ⁇ m.
  • the volume-average particle size can be measured using a laser diffraction/scattering particle size distribution analyzer (e.g., LA-950 manufactured by Horiba, Ltd.).
  • the silica powder is preferably porous, and its oil absorption is typically 10 to 400 mL/100 g, preferably 20 to 200 mL/100 g, and more preferably 30 to 100 mL/100 g.
  • oil absorption is typically 10 to 400 mL/100 g, preferably 20 to 200 mL/100 g, and more preferably 30 to 100 mL/100 g.
  • oil absorption is within this range, it is easy to obtain a cosmetic product with excellent makeup durability and a smooth feel.
  • the "oil absorption" in this invention is a value measured in accordance with JIS K5101-13-2:2004 (boiled linseed oil method).
  • silica powder can be used, and examples of commercially available products that can be used include SATINIER M5, SATINIER M13, SILICA MICRO BEADS P-1500, SILICA MICRO BEADS L-1500, CHIFFONSIL P-3R, SILICA PEARL 20MB, SILICA PEARL 20LB (all manufactured by JGC Catalysts and Chemicals), SUNSPHARE H-51, SUNSPHARE L-51, SUNSPHARE NP-100 (all manufactured by AGC Si-Tech Co., Ltd.), etc.
  • the silica powder may be a composite powder containing other metal oxides.
  • the metal oxides contained therein are not particularly limited, but examples include titanium oxide, zinc oxide, cerium oxide, aluminum oxide, and iron oxide.
  • Examples of commercially available composite powders include Sunsil-Tin 50 (manufactured by Sunjin Chemical Co., Ltd.), SUNVEIL S70, and HCS Refle (all manufactured by JGC Catalysts and Chemicals), which are silica containing titanium oxide, and the PC Ball series (manufactured by Suzuki Oil & Fat Co., Ltd.), which are silica containing iron oxide.
  • the amount of silica contained is selected appropriately depending on the performance requirements of the desired cosmetic product, but to achieve a sufficiently smooth feel, it is preferably 20% by mass or more, and more preferably 25% by mass or more. Furthermore, if the silica content is too high, the freshness that is an advantage of oil-in-water cosmetics will be reduced, the stability of the system over time will decrease, and a whitish cast will be more likely to occur, so the upper limit is preferably 40% by mass. A more preferred upper limit is 35% by mass.
  • the cosmetic of the present invention contains a silicone elastomer.
  • the silicone elastomer may be any silicone elastomer that is commonly used as a component of cosmetics, and specific examples include, for example, (dimethicone/vinyl dimethicone) crosspolymer, (dimethicone/phenyl vinyl dimethicone) crosspolymer, (vinyl dimethicone/lauryl dimethicone) crosspolymer, dimethicone crosspolymer, polysilicone-11, and (dimethicone/(PEG-10/15)) crosspolymer.
  • the silicone elastomer can be blended in the form of a silicone elastomer dispersion, which is made into a gel by swelling the silicone elastomer with oil and dispersing it in the oil phase.
  • Silicone elastomer dispersions typically consist of 5-30% by mass of silicone elastomer and 70-95% by mass of oil. The preferred ratios are 5-25% by mass of silicone elastomer and 75-95% by mass of oil. If the silicone elastomer content in the dispersion is too low or too high, poor emulsification is likely to occur.
  • the oil that forms the oil phase of the silicone elastomer dispersion is typically silicone oil such as dimethylpolysiloxane (dimethicone), trimethicone, methyltrimethicone, methylphenylpolysiloxane (diphenyldimethicone), cetyl PEG/PPG-10/1 dimethicone, and cyclopentasiloxane, but is not necessarily limited to these and any oil that can swell the cross-linked silicone elastomer will do.
  • silicone oil such as dimethylpolysiloxane (dimethicone), trimethicone, methyltrimethicone, methylphenylpolysiloxane (diphenyldimethicone), cetyl PEG/PPG-10/1 dimethicone, and cyclopentasiloxane
  • oils include cetyl ethylhexanoate, 1,3-butylene glycol diisononanoate, 1,3-butylene glycol di-2-ethylhexanoate, dipropylene glycol diisononanoate, dipropylene glycol di-2-ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, tri(caprylic/capric acid)glyceryl, tri-2-ethylhexanoate (triethylhexanoin), glyceryl tricaprate, glyceryl triisostearate, and neopentyl dicaprate.
  • Ester oils such as glycol, ethylhexyl palmitate, isostearyl neopentanoate, myristoylmethyl- ⁇ -alanine (phytosteryl/decyltetradecyl), and dipentaerythrityl tripolyhydroxystearate; liquid oils and fats such as camellia oil, evening primrose oil, macadamia nut oil, olive oil, rapeseed oil, corn oil, sesame oil, jojoba oil, germ oil, and wheat germ oil; oils and fats such as cocoa butter, coconut oil, palm oil, and palm kernel oil; hydrocarbon oils such as isododecane, liquid paraffin, squalene, and squalane; etc.
  • liquid oils and fats such as camellia oil, evening primrose oil, macadamia nut oil, olive oil, rapeseed oil, corn oil, sesame oil, jojoba oil, germ oil, and wheat germ oil
  • oils and fats
  • silicone elastomer dispersions can be used, and specific examples of commercially available products include KSG-15, KSG-16, and KSG-210 manufactured by Shin-Etsu Chemical Co., Ltd., DOWSIL (registered trademark) 9040 and SILICONE ELASTOMER BLEND manufactured by Dow-Toray Industries, Inc., and Gransil DMG-6 manufactured by Grant Industries.
  • DOWSIL registered trademark
  • SILICONE ELASTOMER BLEND manufactured by Dow-Toray Industries, Inc.
  • Gransil DMG-6 manufactured by Grant Industries.
  • KSG-15 is a silicone gel consisting of 4-10% by mass of the crosslinked silicone polymer (dimethicone/vinyl dimethicone) crosspolymer and 90-96% by mass of the silicone oil cyclopentasiloxane;
  • KSG-16 is a silicone gel consisting of 20-30% by mass of the (dimethicone/vinyl dimethicone) crosspolymer and 70-80% by mass of dimethicone;
  • KSG-210 is a silicone gel consisting of 20-30% by mass of the (dimethicone/(PEG-10/15)) crosspolymer and 70-80% by mass of dimethicone.
  • the silicone elastomer content is typically 0.3 to 3% by mass, and preferably 0.5 to 2% by mass. Furthermore, when the silicone elastomer is formulated as a gel-like dispersion swollen with an oil, the content of the gel-like dispersion is typically 3 to 10% by mass, and preferably 4 to 8% by mass, although this will not necessarily be constant depending on the oil content that makes up the dispersion. If the silicone elastomer content is too low, it can easily result in less visible pores, while if it is too high, it can easily result in less spreadability and moisture, and can also have a negative impact on the stability of the formulation.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Dermatology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne un produit cosmétique en émulsion de type huile dans l'eau comprenant (A) de l'eau, (B) un tensioactif hydrophile, (C) une poudre de silice, (D) un élastomère de silicone, et (E) un épaississant à base d'acrylamide. Le produit cosmétique en émulsion de type huile dans l'eau peut contenir d'autres épaississants solubles dans l'eau conjointement avec le composant (E). Le composant (B) est de préférence un sel d'acide gras supérieur, et dans ce cas, un procédé préféré pour produire le cosmétique de type émulsion huile dans l'eau consiste à ajouter progressivement une phase aqueuse contenant le composant (A), le composant (E) et un composant de base à une phase huileuse contenant le composant (C), le composant (D) et un acide gras supérieur afin de préparer ainsi une émulsion de type huile dans l'eau.
PCT/JP2025/004850 2024-02-19 2025-02-14 Produit cosmétique en émulsion de type huile dans l'eau Pending WO2025177950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024-022922 2024-02-19
JP2024022922A JP2025126602A (ja) 2024-02-19 2024-02-19 水中油型乳化化粧料

Publications (1)

Publication Number Publication Date
WO2025177950A1 true WO2025177950A1 (fr) 2025-08-28

Family

ID=96847088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2025/004850 Pending WO2025177950A1 (fr) 2024-02-19 2025-02-14 Produit cosmétique en émulsion de type huile dans l'eau

Country Status (2)

Country Link
JP (1) JP2025126602A (fr)
WO (1) WO2025177950A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007284389A (ja) * 2006-04-18 2007-11-01 Shiseido Co Ltd 皮膚化粧料
JP2015520216A (ja) * 2012-06-21 2015-07-16 ロレアル 疎水性エアロゲル粒子及びシリコーンエラストマー粒子を含むマット効果のある組成物
WO2018088312A1 (fr) * 2016-11-08 2018-05-17 株式会社 資生堂 Composition cosmétique
JP2019014706A (ja) * 2017-07-04 2019-01-31 ジェイオーコスメティックス株式会社 水中油型睫毛用化粧料
JP2019089741A (ja) * 2017-11-17 2019-06-13 ポーラ化成工業株式会社 水中油型乳化化粧料
JP2019518762A (ja) * 2016-06-21 2019-07-04 ユニリーバー・ナームローゼ・ベンノートシヤープ レチノイドおよび多孔質シリカを含むパーソナルケア組成物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007284389A (ja) * 2006-04-18 2007-11-01 Shiseido Co Ltd 皮膚化粧料
JP2015520216A (ja) * 2012-06-21 2015-07-16 ロレアル 疎水性エアロゲル粒子及びシリコーンエラストマー粒子を含むマット効果のある組成物
JP2019518762A (ja) * 2016-06-21 2019-07-04 ユニリーバー・ナームローゼ・ベンノートシヤープ レチノイドおよび多孔質シリカを含むパーソナルケア組成物
WO2018088312A1 (fr) * 2016-11-08 2018-05-17 株式会社 資生堂 Composition cosmétique
JP2019014706A (ja) * 2017-07-04 2019-01-31 ジェイオーコスメティックス株式会社 水中油型睫毛用化粧料
JP2019089741A (ja) * 2017-11-17 2019-06-13 ポーラ化成工業株式会社 水中油型乳化化粧料

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