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WO2024247734A1 - Produit cosmétique de type huile dans l'eau - Google Patents

Produit cosmétique de type huile dans l'eau Download PDF

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Publication number
WO2024247734A1
WO2024247734A1 PCT/JP2024/018085 JP2024018085W WO2024247734A1 WO 2024247734 A1 WO2024247734 A1 WO 2024247734A1 JP 2024018085 W JP2024018085 W JP 2024018085W WO 2024247734 A1 WO2024247734 A1 WO 2024247734A1
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WO
WIPO (PCT)
Prior art keywords
oil
component
water
cosmetic
water cosmetic
Prior art date
Application number
PCT/JP2024/018085
Other languages
English (en)
Japanese (ja)
Inventor
雨迪 孫
亨 岡本
Original Assignee
株式会社 資生堂
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 株式会社 資生堂 filed Critical 株式会社 資生堂
Publication of WO2024247734A1 publication Critical patent/WO2024247734A1/fr

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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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • 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
    • A61K8/86—Polyethers
    • 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 a transparent oil-in-water emulsion cosmetic that exhibits excellent moisturizing properties.
  • cream-type cosmetics and milky lotions with excellent moisturizing properties are often used to prevent the skin from drying out.
  • applying cosmetics with a relatively high viscosity to the skin can require manipulation such as spreading it with the hands.
  • cosmetics that can be applied to the skin as a mist using a spray or the like have also been developed. Cosmetics that can be applied as a mist in this way are generally desired to be highly transparent.
  • the present invention aims to provide an oil-in-water cosmetic that combines high moisture retention and high transparency, and also exhibits effects other than moisture retention.
  • (A1) The following formula (1): R 1 O-(AO) m (EO) n -H (1) (Wherein, R 1 is a hydrocarbon group having 16 to 18 carbon atoms; AO is an alkyleneoxy group having 3 to 4 carbon atoms; EO is an ethyleneoxy group; AO and EO are added in blocks, m and n represent the average number of moles of AO and EO added, respectively; m>4, n>10 and n>m (It is)
  • a first surfactant represented by (A2) a second surfactant selected from ionic surfactants;
  • An oil-in-water cosmetic comprising (B1) a polar oil and (C) water, the content of the (B1) component relative to the total mass of the (B) oil contained in the oil-in-water cosmetic is 50 mass% or more,
  • the oil-in-water cosmetic has a ratio B/A1 of the total mass of the oil component (B) to the total mass of the
  • the component (A2) is represented by the following formula (2): -NR 2 -(CH 2 ) p -SO 3 Z (2) (Wherein, R2 is H or a hydrocarbon group having 1 to 2 carbon atoms; Z is H, Na, K, or NR a 4 (wherein each R a is independently H, CH 3 , C 2 H 5 , CH 2 OH, or CH 2 CH 2 OH); p is 1 to 3.
  • [7] The oil-in-water cosmetic according to any one of [1] to [6], wherein the ratio A2/A1 of the total mass of the component (A2) to the total mass of the component (A1) contained in the oil-in-water cosmetic is 0.01 to 0.05.
  • the present invention provides a cosmetic that combines high moisturizing properties with high transparency.
  • This cosmetic can have a high oily component content, so it is possible to blend oily components with other functions while maintaining high transparency, and it is possible to impart functions such as ultraviolet absorbing properties.
  • the oil-in-water cosmetic composition according to the present invention (hereinafter, simply referred to as "cosmetic composition") comprises: (A1) a first surfactant, (A2) a second surfactant, (B1) polar oil, and (C) water.
  • Cosmetic composition comprises: (A1) a first surfactant, (A2) a second surfactant, (B1) polar oil, and (C) water.
  • the cosmetic preparation according to the present invention contains a surfactant (hereinafter, may be referred to as component (A)).
  • Surfactants can be classified into several types, but the cosmetic preparation according to the present invention contains a combination of a first surfactant and a second surfactant.
  • the first surfactant (hereinafter, sometimes referred to as component (A1)) used in the cosmetic preparation according to the present invention is represented by the following formula (1).
  • R 1 O-(AO) m (EO) n -H (1)
  • AO is an alkyleneoxy group having 3 to 4 carbon atoms
  • EO is an ethyleneoxy group
  • AO and EO are added in blocks, m and n represent the average number of moles of AO and EO added, respectively; m>4, n>10 and n>m (It is)
  • component (A1) is a nonionic surfactant also known as a polyalkylene alkyl ether.
  • This surfactant contains both polyoxyethylene blocks and other polyoxyalkylene blocks such as polyoxypropylene.
  • the weight-average molecular weight of component (A1) represented by formula (1) is preferably 800 or more, and more preferably 1500 or more. If the weight-average molecular weight is less than 800, the effect is low. There is no particular upper limit to the weight-average molecular weight, but care should be taken as the weight-average molecular weight increases, as a sticky feeling may occur.
  • the (A1) component together with the second surfactant described below, mainly provides the effect of improving the dispersion stability of the oil component described below. Therefore, the content of the (A1) component may vary depending on the oil content, but the content of the (A1) component relative to the total weight of the cosmetic is preferably 0.1 to 15% by weight, more preferably 0.5 to 10% by weight, and particularly preferably 1 to 7% by weight.
  • the cosmetic preparation according to the present invention contains a surfactant selected from ionic surfactants as a second surfactant (hereinafter, sometimes referred to as component (A2)).
  • This component (A2) may be any of anionic surfactants, cationic surfactants, and amphoteric surfactants, but among these, the use of an anionic surfactant is preferred because it tends to more strongly exhibit the effects of the present invention.
  • anionic surfactants there are various types of such anionic surfactants, (i) a carboxylate type anionic surfactant having a carboxyl group (-COOH) or a carboxylate group ( -COO- ), (ii) sulfonic acid type anionic surfactants containing a sulfone group (-SO 3 H) or a sulfonate (-SO 3 - ) group, and (iii) sulfate type anionic surfactants containing a sulfate group (-O-SO 3 - ).
  • anionic surfactants surfactants that exhibit their surfactant effect in the neutral region of pH 8 or less are preferred in the present invention.
  • the component (A2) is preferably a compound containing two carboxyl groups rather than a basic anionic surfactant such as a higher fatty acid soap.
  • a basic anionic surfactant such as a higher fatty acid soap.
  • disodium N-stearoyl-L-glutamate, disodium N-octanoyl glutamate, or the like can be used.
  • the surfactant represented by the following formula (2) is -NR 2 -(CH 2 ) p -SO 3 Z (2) (Wherein, R2 is H or a hydrocarbon group having 1 to 2 carbon atoms; Z is H, Na, K, or NR a 4 (wherein each R a is independently H, CH 3 , C 2 H 5 , CH 2 OH, or CH 2 CH 2 OH); p is 1 to 3.
  • R a is preferably H, C 2 H 5 , CH 2 OH, or CH 2 CH 2 OH.
  • Sodium methyl stearoyl taurate, Sodium methyl cocoyl taurate, Cocoyl methyl taurine, sodium taurate, coconut fatty acid N-methyl taurate salt, lauryl methyl taurate salt, Myristyl methyl taurine salt, Sodium coconut taurate or coconut isethionate can be used.
  • the (A2) component together with the (A1) component, mainly provides the effect of improving the dispersion stability of the oil component, which will be described later. Therefore, although the content of the (A2) component may vary depending on the content of the (A1) component and the content of the oil component, the content of the (A2) component relative to the total weight of the cosmetic is preferably 0.01 to 1% by weight, and more preferably 0.05 to 0.5% by weight.
  • the cosmetic according to the present invention contains a combination of the (A1) and (A2) components, but the dispersion stability of the cosmetic may vary depending on the blending ratio of these. For this reason, it is preferable that the ratio A2/A1, which is the total mass of the (A2) component to the total mass of the (A1) component contained in the cosmetic, is 0.01 to 0.05.
  • the cosmetic according to the present invention contains an oil component (hereinafter, may be referred to as component (B)). Since the cosmetic according to the present invention is an oil-in-water cosmetic containing an oil component, it is possible to blend an oily component or an oil-soluble component that can impart a function to the cosmetic.
  • Oils can be classified into polar oils (hereinafter sometimes referred to as component (B1)) and non-polar oils (hereinafter sometimes referred to as component (B2)).
  • the cosmetic composition according to the present invention must contain component (B1), and the content of component (B1) relative to the total mass of component (B) contained in the oil-in-water cosmetic composition is 50% by mass or more. It is preferable that the content of component (B1) relative to the total mass of component (B) contained in the oil-in-water cosmetic composition is 70% by mass or more.
  • the cosmetic composition according to the present invention does not need to contain component (B2), and component (B) may consist only of component (B1).
  • the components (B1) and (B2) are explained below.
  • polar oil refers to an oil having a polar group, i.e., a hydrophilic group.
  • This polar oil can be arbitrarily selected from those usually used in the fields of cosmetics, pharmaceuticals, food, etc., depending on the function required of the cosmetic.
  • polar oils having an IOB value of 0.05 to 0.80 are preferred.
  • the “inorganic value” and “organic value” are set according to various atoms or functional groups, for example, the “organic value” for one carbon atom in a molecule is 20, and the “inorganic value” for one hydroxyl group in the molecule is 100, and the IOB value of the organic compound can be calculated by integrating the "inorganic value” and “organic value” of all atoms and functional groups in the organic compound.
  • polar oils that can impart functions to cosmetics can be used.
  • polar oils that can impart luster, color, and texture to the skin when the cosmetics are used, as well as UV absorption effects and the formation of a protective film on the skin can be used.
  • Polar oils include ester oils, higher fatty acids, higher alcohols, and waxes. Of these, ester oils are preferably used. Among polar oils, those with a high ultraviolet absorbing effect are generally called ultraviolet absorbers, and can be used to impart the cosmetic product according to the present invention with the function of protecting the skin from ultraviolet rays. It is preferable that the cosmetic product according to the present invention contains such an ultraviolet absorber as component (B1).
  • ester oils include glyceryl (behenate/eicosane diacid), tripropylene glycol dineopentanoate, isononyl isononanoate, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, cetyl ethylhexanoate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glyco
  • the ultraviolet absorbing agent is not particularly limited, but may be any ultraviolet absorbing agent generally used in cosmetics.
  • Benzoic acid derivatives such as ethyl para-aminobenzoate (PABA), ethyl-dihydroxypropyl PABA, ethylhexyl-dimethyl PABA, glyceryl PABA, PEG-25-PABA, and diethylaminohydroxybenzoylhexyl benzoate
  • PABA ethyl para-aminobenzoate
  • Salicylic acid derivatives such as homosalate, ethylhexyl salicylate (octyl salicylate), dipropylene glycol salicylate, and TEA salicylate
  • cinnamic acid derivatives such as octyl methoxycinnamate, ethylhexyl methoxycinnamate, isopropyl methoxycinnamate, isoamyl methoxyc
  • the polar oil can be selected from these and used arbitrarily. Two or more types of polar oils may also be used in combination. Some of the exemplified polar oils are in a solid form, such as a powdery state, at room temperature, but they can also be used by dissolving them in other polar oils. It is preferable that the cosmetic composition according to the present invention contains an ultraviolet absorbing agent as the polar oil.
  • the cosmetic composition according to the present invention which contains an ultraviolet absorbing agent as the polar oil, is preferable as a sun care cosmetic composition.
  • the content of component (B1) is formulated at a relatively high content in order to fully exert the aesthetic effect and UV protection effect.
  • the content of component (B1) is preferably 0.5 to 20 mass% and more preferably 3 to 15 mass% based on the total mass of the cosmetic composition. Caution is required when the polar oil content is low, as the functions realized by the polar oil may not be fully exerted.
  • the ratio B/A1 of the total mass of the (B) oil to the total mass of the (A1) component contained in the cosmetic is 1 to 5. Since this can further improve dispersibility, it is preferable that B/A1 is 2 to 4, and more preferably 2.5 to 3.5.
  • the cosmetic composition according to the present invention may also contain a non-polar oil.
  • the non-polar oil is an oil component other than the component (B1) and has an IOB value of less than 0.05.
  • non-polar oils include: (i) Hydrocarbon oils, such as liquid paraffin, squalane, squalene, paraffin, isohexadecane, and the like; and (ii) silicone oils, such as chain silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, caprylyl methicone, diphenylsiloxyphenyl trimethicone, methylhydrogenpolysiloxane, and cyclic silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.
  • composition according to the present invention further contains water.
  • water water used in cosmetics, quasi-drugs, etc., can be used, such as purified water, ion-exchanged water, tap water, etc.
  • the cosmetic composition according to the present invention generally has a water content of 30 to 95% by mass, and preferably 40 to 80% by mass, based on the total mass of the cosmetic composition.
  • composition according to the present invention may contain a polyhydric alcohol (hereinafter, sometimes referred to as component (D)) in addition to the above-mentioned essential components.
  • component (D) has the function of further improving the moisturizing effect of the oil-in-water cosmetic composition according to the present invention.
  • polyhydric alcohols examples include glycerin, 1,3-butylene glycol, ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, polyethylene glycol-polypropylene glycol, trimethylolethane, trimethylolpropane, erythritol, pentaerythritol, sorbitan, glucose, sorbitol, maltitol, sucrose, raffinose, hexylene glycol, 1,2-pentanediol, and trehalose.
  • the cosmetic according to the present invention contains component (D), it is preferable that the content of component (D) relative to the total mass of the cosmetic is 3 to 30 mass%.
  • the cosmetic composition according to the present invention may contain various additives, in addition to the above-mentioned essential components, as necessary.
  • One such additive is an alkylene oxide derivative.
  • the alkylene oxide derivative can improve the moisturizing sensation of the skin when the cosmetic composition according to the present invention is used.
  • the alkylene oxide derivative used in the cosmetic composition according to the present invention is not particularly limited, but is preferably a compound represented by the following formula (3).
  • R 3 O-[(AO) p (EO) q ]-R 3 (3)
  • R3 's each independently represent a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and the ratio of the number of hydrogen atoms to the number of hydrocarbon groups in R3 is 0.15 or less, preferably 0.06 or less;
  • AO is an alkyleneoxy group having 3 to 4 carbon atoms;
  • EO is an ethyleneoxy group;
  • AO and EO may be added in a block form or random form, p and q represent the average number of moles of AO and EO added, respectively; 1 ⁇ p ⁇ 70, preferably 2 ⁇ p ⁇ 20; 1 ⁇ q ⁇ 70, preferably 2 ⁇ q ⁇ 20;
  • the ratio of EO to the total of AO and EO is 20 to 80 mass%.
  • alkylene oxide derivative examples include: Polyoxyethylene (10 mol) polyoxypropylene (10 mol) dimethyl ether, Polyoxyethylene (9 moles) polyoxypropylene (2 moles) dimethyl ether, Polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether, Polyoxyethylene (6 moles) polyoxypropylene (14 moles) dimethyl ether, Polyoxyethylene (15 mol) polyoxypropylene (5 mol) dimethyl ether, Polyoxyethylene (25 mol) polyoxypropylene (25 mol) dimethyl ether, Polyoxyethylene (9 moles) polyoxybutylene (2 moles) dimethyl ether, Polyoxyethylene (14 moles) polyoxybutylene (7 moles) dimethyl ether, Polyoxyethylene (10 mol) polyoxypropylene (10 mol) diethyl ether, Polyoxyethylene (10 mol) polyoxypropylene (10 mol) dipropyl ether, Polyoxyethylene (10 mol) polyoxypropylene (10 mol) dibutyl ether, and poly
  • the amount of the alkylene oxide derivative that may be contained in the cosmetic composition according to the present invention is not particularly limited, but is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, based on the total mass of the cosmetic composition.
  • the cosmetic according to the present invention may contain ingredients that are commonly used in cosmetics in addition to those mentioned above.
  • ingredients include powder ingredients, higher alcohols, higher fatty acids, surfactants other than the (A1) or (A2) ingredient, moisturizers other than the (D) ingredient, water-soluble polymers, film-forming agents, sequestering agents, lower alcohols, sugars, amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant assistants, fragrances, colorants, etc.
  • the formulation of the cosmetic according to the present invention is not particularly limited as long as it is an oil-in-water cosmetic.
  • an oil-in-water cosmetic is in a form in which oil droplet particles are dispersed in water, but in order to maintain high transparency, it is preferable that the average particle size of the oil droplet particles contained in the cosmetic is 70 nm or less.
  • the cosmetic product according to the present invention is an oil-in-water cosmetic product, and can be produced by any method selected from among the methods for producing oil-in-water cosmetics known in the art.
  • a liquid containing an oily component can be added to a solution containing a surfactant and water, and then high-pressure emulsified using a high-pressure homogenizer to form an oil-in-water emulsion composition.
  • the high-pressure emulsification is carried out under a pressure of, for example, 50 MPa or more, preferably 100 MPa or more.
  • the high-pressure emulsification method is advantageous for producing oil-in-water cosmetic compositions with high transparency, but it is not always necessary to use the high-pressure emulsification method.
  • By adjusting the surfactant and the dispersion conditions it is also possible to produce the cosmetic compositions using general production methods such as mixed core reaction.
  • the present invention will be explained in more detail below with reference to examples, but the present invention is not limited thereto.
  • the content is expressed as mass % relative to the total mass of the cosmetic.
  • Oil-in-water emulsion cosmetics with the composition shown in Table 1 below were produced and evaluated for the following items. The results are also shown in Table 1.
  • the L value was measured using a color difference meter (Spectrocolor difference meter SE7700 (product name), manufactured by Nippon Denshoku Industries Co., Ltd.) at 30° C. using purified water as a standard. From the measured L value, evaluation was made according to the following criteria. A: L value is 35 or more B: L value is less than 35
  • the average emulsion particle size was measured using a particle size measuring device (Zetasizer (product name), manufactured by Malvern Panalytical).

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

Abstract

La présente invention concerne un produit cosmétique de type huile dans l'eau ayant une excellente capacité de rétention d'humidité et une transparence élevée. Un produit cosmétique huile dans l'eau selon la présente invention comprend (A1) un premier tensioactif qui a une structure spécifique et comprend un groupe éthylèneoxy et un groupe alkylèneoxy ayant 3 à 4 atomes de carbone, (A2) un second tensioactif choisi parmi des tensioactifs ioniques, (B1) une huile polaire, et (C) de l'eau. La teneur en pourcentage du composant (B) par rapport à la masse totale de teneur en huile contenue dans le produit cosmétique huile dans l'eau est de 50% en masse ou plus. Le rapport B/A1 de la masse totale de la teneur en huile (B) par rapport à la masse totale du composant (A1) contenu dans le produit cosmétique huile dans l'eau est de 1 à 5.
PCT/JP2024/018085 2023-05-29 2024-05-16 Produit cosmétique de type huile dans l'eau WO2024247734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023087799 2023-05-29
JP2023-087799 2023-05-29

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WO2024247734A1 true WO2024247734A1 (fr) 2024-12-05

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016037454A (ja) * 2014-08-06 2016-03-22 株式会社 資生堂 化粧料用原料
JP2019038773A (ja) * 2017-08-25 2019-03-14 株式会社 資生堂 水中油型乳化毛髪化粧料
WO2020032241A1 (fr) * 2018-08-10 2020-02-13 株式会社 資生堂 Produit cosmétique émulsifié
WO2020116137A1 (fr) * 2018-12-07 2020-06-11 株式会社 資生堂 Produit cosmétique de type aqueux ou huile dans l'eau
WO2021205902A1 (fr) * 2020-04-06 2021-10-14 株式会社 資生堂 Composition contenant un gel lamellaire, composition émulsifiée et composition pour un agent pour une utilisation externe sur la peau
JP2024082520A (ja) * 2022-12-08 2024-06-20 ニベア花王株式会社 水中油型日焼け止め化粧料

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016037454A (ja) * 2014-08-06 2016-03-22 株式会社 資生堂 化粧料用原料
JP2019038773A (ja) * 2017-08-25 2019-03-14 株式会社 資生堂 水中油型乳化毛髪化粧料
WO2020032241A1 (fr) * 2018-08-10 2020-02-13 株式会社 資生堂 Produit cosmétique émulsifié
WO2020116137A1 (fr) * 2018-12-07 2020-06-11 株式会社 資生堂 Produit cosmétique de type aqueux ou huile dans l'eau
WO2021205902A1 (fr) * 2020-04-06 2021-10-14 株式会社 資生堂 Composition contenant un gel lamellaire, composition émulsifiée et composition pour un agent pour une utilisation externe sur la peau
JP2024082520A (ja) * 2022-12-08 2024-06-20 ニベア花王株式会社 水中油型日焼け止め化粧料

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