WO2022255176A1 - 化粧料組成物 - Google Patents
化粧料組成物 Download PDFInfo
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- WO2022255176A1 WO2022255176A1 PCT/JP2022/021324 JP2022021324W WO2022255176A1 WO 2022255176 A1 WO2022255176 A1 WO 2022255176A1 JP 2022021324 W JP2022021324 W JP 2022021324W WO 2022255176 A1 WO2022255176 A1 WO 2022255176A1
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- oil
- composition according
- composition
- betaine
- cosmetic
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- 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
- A61K8/03—Liquid compositions with two or more distinct layers
-
- 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
- A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives 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
- A61K8/84—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
- 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
-
- 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
- A61K8/892—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a hydroxy group, e.g. dimethiconol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
Definitions
- the present invention relates to a cosmetic composition that undergoes phase separation when left standing, and a cosmetic filled in a dispenser type container.
- Cosmetics that phase separate when left to stand are also used as cosmetics for the purpose of aesthetic appearance due to the appearance feature of having multiple phases.
- cosmetic ingredients suitable for each phase can be stably blended, so there is an advantage that required functions can be distributed to each phase.
- Cosmetics that undergo phase separation are generally emulsified by shaking at the time of use. After use, if left to stand still, phase separation occurs again. In order to cause such a phase change, a surfactant is blended, but it is known that the action of the surfactant takes time for separation and leaves emulsified droplets (for example, Patent document 1).
- phase-separating cosmetic is used as a finishing cosmetic that is applied from the top of the makeup-applied face in order to prevent the makeup from collapsing and to increase the longevity of the makeup cosmetic such as foundation. is also used.
- This finish cosmetic appeals to users with functions such as adsorbing sebum, protecting the skin from dryness, protecting the skin from external factors such as pollen and dust, and preventing makeup from being transferred to clothing. ing.
- the present inventors have surprisingly found that a cosmetic composition that phase separates upon standing, comprising an oil component, an oil-soluble film-forming agent, a betaine-type surfactant, and water, is It was found that the emulsion is stable and a uniform emulsified state can be easily formed by shaking.
- the present invention is based on such findings, and discloses a cosmetic composition that phase separates upon standing, comprising an oil component, an oil-soluble film-forming agent, a betaine-type surfactant, and water. be.
- a cosmetic composition that phase-separates upon standing comprising an oil component, an oil-soluble film-forming agent, a betaine-type surfactant, and water.
- a betaine-type surfactant is selected from the group consisting of lauryl betaine, cocamidopropyl betaine, aminobetaine, and sulfobetaine.
- the amount of the betaine surfactant is 0.01 to 0.2% by mass relative to the total amount of the composition.
- composition according to any one of [1] to [3], wherein the blending ratio of the oil-soluble coating agent and the betaine surfactant is 100:1 to 5:1 on a mass basis.
- Composition [5] The composition according to any one of [1] to [4], wherein the oil-soluble coating agent is a silicone-based coating agent.
- the oil-soluble coating agent comprises a resin structure and a linear structure, The resin structure comprises a unit represented by SiO 4/2 or a unit represented by R 1 SiO 3/2 (R 1 is a C 1-6 alkyl group or a C 1-6 alkoxy group).
- the linear structure comprises units represented by R 2 SiO 2/2 (R 2 is a C 1-6 alkyl group or a C 1-6 alkoxy group);
- R 2 is a C 1-6 alkyl group or a C 1-6 alkoxy group
- the oil-soluble coating agent is a (trimethylsiloxysilicate/dimethiconol) crosspolymer.
- the cosmetic according to [10] wherein the composition is sprayed in the form of a mist.
- the cosmetic of [10] or [11], wherein the composition is emulsified by shaking before use.
- the cosmetic composition that undergoes phase separation when left to stand according to the present invention is stable before and after phase separation, and can form a uniform emulsified state.
- the cosmetic composition according to the present invention can suppress makeup collapse when applied over makeup.
- the present invention relates to a cosmetic composition (hereinafter sometimes referred to as composition) that phase separates upon standing, comprising an oil component, an oil-soluble film-forming agent, a betaine-type surfactant, and water.
- the composition according to the present invention is a cosmetic composition that undergoes phase separation on standing, and may have two or more phases on standing, but preferably two phases. , followed by the aqueous phase.
- phase separation it is possible to stably blend cosmetic ingredients, particularly active ingredients, suitable for each phase.
- the appearance is excellent because it leads to an uplifting feeling of the user and an improvement in aggressiveness.
- the phase-separated composition is preferably emulsified by shaking before use. In a preferred embodiment of the present invention, by shaking, the separated oil phase and water phase are uniformly dispersed throughout to make the whole into a one-phase state, and then allowed to stand still to separate again.
- the composition according to the invention is preferably a cosmetic finish composition.
- finishing cosmetic composition refers to a composition that is applied over makeup to impart a fixer function to the makeup, and includes base cosmetics that are directly applied to the skin and general makeup cosmetics. It is different from the fee. Specifically, after applying base makeup such as foundation and makeup such as eye shadow and blush, finishing cosmetics are applied.
- the cosmetic finish according to the present invention is applied over foundation. As a result, the foundation can be prevented from adhering to the mask when the mask is worn.
- the composition according to the invention comprises oil.
- oils include silicone oils, hydrocarbon oils, higher fatty acids, higher alcohols, synthetic ester oils, liquid oils and fats, preferably silicone oils or hydrocarbon oils, more preferably silicone oils.
- silicone oils include linear polysiloxanes (eg, dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.), cyclic polysiloxanes (eg, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexane siloxane, etc.), silicone resins that form a three-dimensional network structure, silicone rubber, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.), acrylic silicone and the like, preferably chain polysiloxane.
- linear polysiloxanes eg, dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane
- hydrocarbon oils examples include isododecane, isohexadecane, isoparaffin, liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.
- higher fatty acids examples include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, toric acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid ( DHA) and the like.
- Higher alcohols include straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.), branched-chain alcohols (e.g., monostearyl glycerin ether (bacyl alcohol )-2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.).
- straight-chain alcohols e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.
- branched-chain alcohols e.g., monostearyl glycerin ether (bacyl alcohol )-2-decyltetradecinol, lanolin
- Synthetic ester oils include, for example, octyl octanoate, nonyl nonanoate, cetyl octanoate, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, ethylhexyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, olein Decyl acid, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, mono N-alkyl glycol isostearate, neopentyl glycol dicaprate, trip
- liquid oils examples include avocado oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, and cottonseed oil. , Eno oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, sinagiri oil, Japanese pear oil, jojoba oil, germ oil, triglycerin and the like.
- solid fats and oils include cacao butter, coconut oil, hydrogenated coconut oil, palm oil, palm kernel oil, Japanese wax kernel oil, hydrogenated oil, Japanese wax, hydrogenated castor oil, and the like.
- the blending amount of oil is preferably 1 to 20% by mass, more preferably 3 to 15% by mass, based on the total amount of the composition according to the present invention. Within this range, good phase separation can be obtained, and stickiness and shine when applied to the skin can be suppressed.
- the composition according to the invention comprises an oil-soluble coating agent.
- the oil-soluble coating agent is not particularly limited as long as it can be blended in cosmetics. Examples include urethane-based coating agents, acrylic-based coating agents, vinyl-based coating agents, and silicone-based coating agents, preferably silicone. It is a system coating agent. Silicone-based coating agents include silicone resins, fluorine-modified silicone resins, and silicone resin gums, with silicone resin gums being preferred.
- the oil-soluble coating agent is a polymer comprising a resin structure and a linear structure
- the resin structure is a unit represented by SiO 4/2 or R 1 SiO 3/2 (R 1 is C 1 -6 alkyl group or C 1-6 alkoxy group)
- the linear structure is represented by R 2 SiO 2/2 (R 2 is a C 1-6 alkyl group or C 1-6 alkoxy group). is a group)
- a resin structure and a linear structure are linked by Si--O--Si bonds (hereinafter, such a polymer may be referred to as a block copolymer).
- block copolymers have both a resin structure and a linear structure.
- a polymer has only a resin structure, it is excellent in film-forming properties and adhesiveness derived from its structure, but sometimes lacks flexibility and conformability.
- the polymer has both flexibility and followability.
- a soft and sticky film can be formed by applying a cosmetic containing a block copolymer having such characteristics.
- a cosmetic containing a block copolymer having such characteristics.
- the resin structure has a unit represented by SiO 4/2 (hereinafter sometimes referred to as a Q unit) or R 1 SiO 3/2 (R 1 is a C 1-6 alkyl group or a C 1-6 alkoxy group). , preferably a methyl group, an ethyl group, a propyl group, a methoxy group, an ethoxy group or a propoxy group, more preferably a methyl group) (hereinafter sometimes referred to as a T unit). and preferably comprises Q units.
- the resin structure is (R 3 ) 3 SiO 1/2 (R 3 is a C 1-6 alkyl group or a C 1-6 alkoxy group, preferably a methyl group, an ethyl group, a propyl group , a methoxy group, an ethoxy group or a propoxy group, more preferably a methyl group) (hereinafter sometimes referred to as an M unit).
- the resin structure comprises M units and Q units, more preferably a structure consisting of M units and Q units (MQ structure).
- the linear structure is R 2 SiO 2/2 (R 2 is a C 1-6 alkyl group or a C 1-6 alkoxy group, preferably a methyl group, an ethyl group, a propyl group, a methoxy group, an ethoxy group or a propoxy group. and more preferably a methyl group) (hereinafter sometimes referred to as a D unit).
- R 2 is a C 1-6 alkyl group or a C 1-6 alkoxy group, preferably a methyl group, an ethyl group, a propyl group, a methoxy group, an ethoxy group or a propoxy group. and more preferably a methyl group
- a D unit a methyl group
- the portion where a plurality of D units, preferably 5 or more, are connected has a linear structure
- the other portion where Q units, T units, D units and M units are mixed has a resin structure.
- the linear structure preferably has a hydroxy group (silanol group) at the end of the molecular chain.
- the linking portion between the resin structure and the linear structure is linked by a Si--O--Si bond, and there may be a plurality of structures linked by this Si--O--Si bond in the molecule.
- the Si atoms attached to the resin structure are T units.
- the mass ratio of the resin structure and the linear structure contained in one polymer molecule is preferably 50:50 to 95:5, more preferably 60:40 to 90:10. From the viewpoint of solubility, the hydroxy groups contained in the polymer are
- the block copolymer is preferably a silicone-based coating agent, more preferably a silicone resin gum.
- silicone resin gum examples include (trimethylsiloxysilicate/dimethiconol) crosspolymers.
- the mass-average molecular weight of the oil-soluble coating agent is preferably 5,000 to 100,000, more preferably 10,000 to 50,000, from the viewpoint of its function as a coating agent and solubility.
- the weight average molecular weight is a polystyrene-equivalent value obtained by gel permeation chromatography.
- One or two or more oil-soluble coating agents can be blended.
- the blending amount of the oil-soluble coating agent is preferably 0.05 to 5% by mass, more preferably 1 to 5% by mass, based on the total amount of the composition according to the present invention.
- the composition according to the invention comprises a betaine-type surfactant.
- betaine surfactants include lauryl betaine, cocamidopropyl betaine, aminobetaine, sulfobetaine and the like.
- a uniform emulsified state can be obtained when emulsified by shaking, and the generation of interfacial aggregates can be suppressed. can be suppressed.
- One or two or more betaine-type surfactants can be blended.
- the amount of the betaine surfactant is preferably 0.01-0.2% by mass, more preferably 0.02-0.1% by mass, based on the total amount of the composition according to the present invention.
- the blending ratio of the oil-soluble film-forming agent and the betaine-type surfactant is preferably 100:1 to 5:1, more preferably 70:1, on a mass basis. ⁇ 10:1.
- composition according to the present invention can contain surfactants other than the betaine surfactant, but the amount of the other surfactants is preferably 0.1 based on the total weight of the composition. % by mass or less, more preferably 0.05% by mass or less. It is also a preferred form not to contain other surfactants.
- the composition according to the invention comprises water.
- water water used in cosmetics, quasi-drugs, etc. can be used, and for example, purified water, ion-exchanged water, tap water, etc. can be used.
- the amount of water to be incorporated is preferably 40-95% by weight, more preferably 60-95% by weight, based on the total weight of the composition according to the invention.
- Compositions according to the invention may comprise sodium chloride.
- sodium chloride in the case of a cosmetic composition that undergoes phase separation, the phase boundary can be made clear, and the separation rate can be adjusted.
- the amount of sodium chloride compounded is preferably 0.01 to 0.5% by weight, more preferably 0.05 to 0.3% by weight, relative to the total amount of the composition according to the invention. By setting it to this range, stickiness due to sodium chloride can be suppressed, the interface can be cleared, and the separation speed can be increased.
- Compositions according to the invention may contain lower alcohols. By blending a lower alcohol, the specific gravity of the composition can be reduced. In addition, it is possible to impart a refreshing feeling of use.
- lower alcohols include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like.
- the amount of the lower alcohol compounded is preferably 1-45% by mass, more preferably 5-30% by mass, relative to the total amount of the composition according to the present invention.
- ingredients commonly used in cosmetics such as moisturizers, thickeners, bactericides, preservatives, pH adjusters, ultraviolet absorbers, antioxidants, organic and inorganic powders, fragrances, Examples include pigments, dyes, whitening agents, vitamins, and various amino acids.
- composition according to the present invention can be produced according to conventional methods.
- the cosmetic according to the present invention is a cosmetic obtained by filling a dispenser-type container with the composition according to the present invention.
- the composition according to the invention is sprayed from this container in the form of a mist. Since the composition according to the present invention is sprayed in the form of a mist, it can be applied uniformly without direct contact with the skin, so that it is thin, uniform, and does not easily rub on top of the makeup without ruining the makeup. A film can be formed.
- Examples 1 to 5 and Comparative Examples 1 to 9 Compositions of Examples 1-5 and Comparative Examples 1-9 were prepared with the formulations shown in Table 1. When the appearance of the prepared compositions was observed while standing still, all of them were separated into two phases. In the table, As the (trimethylsiloxysilicate/dimethiconol) crosspolymer, "DOWSIL FC-5004 DM (1.5 cSt Silicone Resin Gum)" (Dow Toray Industries, Inc.) was used.
- DOWSIL FC-5004 DM (1.5 cSt Silicone Resin Gum) is a product containing a (trimethylsiloxysilicate/dimethiconol) crosspolymer dissolved in a low-viscosity dimethicone liquid, but is listed in the table. % by mass refers only to the (trimethylsiloxysilicate/dimethiconol) crosspolymer, and does not include the solvent or the like contained in the product.
- compositions of Examples 1 to 5 were placed in a dispenser-type spray container and applied to the face after makeup by spraying. When it was checked after 8 hours had passed, no make-up collapse or wrinkling was observed, and the make-up did not fade.
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Abstract
Description
[1]油分、油溶性被膜剤、ベタイン型界面活性剤、および水を含んでなる、静置時に相分離する化粧料組成物。
[2]前記ベタイン型界面活性剤が、ラウリルベタイン、コカミドプロピルベタイン、アミノベタイン、およびスルホベタインからなる群から選択される、[1]に記載の組成物。
[3]前記ベタイン型界面活性剤の配合量が、組成物の総量に対して、0.01~0.2質量%である、[1]または[2]に記載の組成物。
[4]前記油溶性被膜剤と前記ベタイン型界面活性剤との配合比が、質量基準で、100:1~5:1である、[1]~[3]のいずれか一項に記載の組成物。
[5]前記油溶性被膜剤が、シリコーン系被膜剤である、[1]~[4]のいずれかに記載の組成物。
[6]前記油溶性被膜剤が、レジン構造とリニア構造とを含んでなり、
前記レジン構造が、SiO4/2で表される単位またはR1SiO3/2(R1はC1-6アルキル基またはC1-6アルコキシ基である)で表される単位を含んでなり、
前記リニア構造が、R2SiO2/2(R2はC1-6アルキル基またはC1-6アルコキシ基である)で表される単位を含んでなり、
前記レジン構造と前記リニア構造がSi-O-Si結合によって連結されているポリマーである、[1]~[5]のいずれかに記載の組成物。
[7]前記油溶性被膜剤が、シリコーンレジンガムである、[1]~[6]のいずれかに記載の組成物。
[8]前記油溶性被膜剤が、(トリメチルシロキシケイ酸/ジメチコノール)クロスポリマーである、[1]~[7]のいずれかに記載の組成物。
[9]仕上げ化粧料組成物である、[1]~[8]のいずれかに記載の組成物。
[10][1]~[9]のいずれかに記載の組成物をディスペンサー型容器に充填されてなる化粧料。
[11]前記組成物がミスト状に噴出される、[10]に記載の化粧料。
[12]使用前に振とうにより前記組成物を乳化させる、[10]または[11]に記載の化粧料。
本発明による組成物は、静置時に相分離する化粧料組成物であり、静置時に2相以上であってよいが、好ましくは2相であり、典型的には静置時に上から油相、水相の順になる。相分離することにより、各相に見合った化粧料成分、特に有効成分を安定的に配合することができる。また、外観の審美性に優れることは、使用者の高揚感や積極性の向上等にもつながるため好ましい。
相分離された状態の組成物は、使用前に振とうすることにより、乳化させて用いることが好ましい。本発明の好ましい一形態において、振とうすることにより、分離されていた油相と水相が全体に均一に分散して全体が一相状態となり、その後静置することにより、再度分離する。
ここで、本発明において、仕上げ化粧料組成物とは、化粧の上から適用して、化粧にフィクサー機能を付与するものを意味し、肌に直接適用される下地化粧料や一般的なメーキャップ化粧料とは異なるものである。
具体的には、ファンデーション等のベースメイクや、アイシャドウ、チーク等のメイクアップを施した上に、仕上げ化粧料は適用される。本発明による好ましい形態において、本発明による仕上げ化粧料は、ファンデーションの上から適用される。これにより、マスク装着時にファンデーションのマスクへの付着を抑制することができる。
本発明による組成物は、油分を含んでなる。油分としては、例えば、シリコーン油、炭化水素油、高級脂肪酸、高級アルコール、合成エステル油、液体油脂等が挙げられ、好ましくはシリコーン油または炭化水素油であり、より好ましくはシリコーン油である。
本発明による組成物は、油溶性被膜剤を含んでなる。油溶性被膜剤としては、化粧料に配合しうるものであれば特に限定されないが、例えば、ウレタン系被膜剤、アクリル系被膜剤、ビニル系被膜剤、シリコーン系被膜剤が挙げられ、好ましくはシリコーン系被膜剤である。
シリコーン系被膜剤としては、シリコーン樹脂、フッ素変性シリコーン樹脂、シリコーンレジンガムが挙げられ、好ましくはシリコーンレジンガムである。
レジン構造が、SiO4/2で表される単位またはR1SiO3/2(R1はC1-6アルキル基またはC1-6アルコキシ基である)で表される単位を含んでなり、リニア構造が、R2SiO2/2(R2はC1-6アルキル基またはC1-6アルコキシ基である)で表される単位を含んでなり、
レジン構造とリニア構造がSi-O-Si結合によって連結されている(以下、このようなポリマーをブロックコポリマーと称することがある)。
レジン構造は、上記の単位に加えて、(R3)3SiO1/2(R3はC1-6アルキル基またはC1-6アルコキシ基であり、好ましくはメチル基、エチル基、プロピル基、メトキシ基、エトキシ基またはプロポキシ基であり、より好ましくはメチル基である)で表される単位(以下、M単位と称することがある)をさらに含むこともできる。
好ましい一形態において、レジン構造は、M単位およびQ単位を含んでなり、より好ましくはM単位およびQ単位からなる構造(MQ構造)である。
リニア構造は、分子鎖の末端にヒドロキシ基(シラノール基)を有することが好ましい。
ポリマー1分子中に含まれるレジン構造とリニア構造の質量比は、好ましくは50:50~95:5であり、より好ましくは60:40~90:10である。
ポリマー中に含まれるヒドロキシ基は、溶解性の観点から、
本発明による組成物は、ベタイン型界面活性剤を含んでなる。ベタイン型界面活性剤としては、例えば、ラウリルベタイン、コカミドプロピルベタイン、アミノベタイン、スルホベタイン等が挙げられる。
本発明による組成物が、ベタイン型界面活性剤を含むことで、驚くべきことに、振とうにより乳化させたときに、均一な乳化状態とすることができ、かつ、界面の凝集体の発生を抑制することができる。
ベタイン型界面活性剤の配合量は、本発明による組成物の総量に対して、好ましくは0.01~0.2質量%であり、より好ましくは0.02~0.1質量%である。
本発明による組成物は、水を含んでなる。水としては、化粧品、医薬部外品等に使用される水を使用することができ、例えば、精製水、イオン交換水、水道水等を使用することができる。
水の配合量は、本発明による組成物の総量に対して、好ましくは40~95質量%であり、より好ましくは60~95質量%である。
塩化ナトリウムの配合量は、本発明による組成物の総量に対して、好ましくは0.01~0.5質量%であり、より好ましくは0.05~0.3質量%である。この範囲とすることで、塩化ナトリウムによるべたつきを抑制するとともに、界面をクリアにし、分離速度を早くすることができる。
低級アルコールの配合量は、本発明による組成物の総量に対して、好ましくは1~45質量%であり、より好ましくは5~30質量%である。
表1に示される配合で、実施例1~5および比較例1~9の組成物を調製した。調製された組成物を静置した状態で外観を観察すると、全て、2相に分離していた。
(トリメチルシロキシケイ酸/ジメチコノール)クロスポリマーは、「DOWSIL FC-5004 DM(1.5cSt Silicone Resin Gum)」(ダウ・東レ株式会社)を用いた。なお、「DOWSIL FC-5004 DM(1.5cSt Silicone Resin Gum)」は、低粘度ジメチコン液に溶解された(トリメチルシロキシケイ酸/ジメチコノール)クロスポリマーを含む製品であるが、表に記載している質量%は(トリメチルシロキシケイ酸/ジメチコノール)クロスポリマーのみを指し、商品に含まれる溶媒等は含まれない。
静置状態で2相に分離している上記で調製した組成物を振とうし、乳化状態とし、60分静置した。そのときの、相の界面を目視により観察し、以下の基準により評価した。得られた結果は表1のとおりである。
A:界面に凝集体が確認されなかった。
B:界面の一部に凝集体が確認された。
C:界面の全体にわたり凝集体が確認された。
静置状態で2相に分離している上記で調製した組成物を振とうし、乳化状態とした。そのときの、分散状態を目視により観察し、以下の基準により評価した。得られた結果は表1のとおりであった。
A:全体的に均一な状態であった。
B:ほとんど均一な状態であるが、一部分離した状態であった。
C:全体的に不均一な状態であった。
上記で調製した組成物をディスペンサー型の噴霧容器に収容した。
人工皮革上にリキッドファンデーションを一定量塗布し、30分間乾燥させた。その後、人工皮革から15cm離れた距離から、噴霧容器を3回噴霧して組成物を塗布した。その後、イオン交換水を15cm離れた距離から噴霧容器にて3回噴射し、そしてオレイン酸(0.5mg/cm2)を塗布し、30分間乾燥させ、不織布を取り付けたタッピング試験機を用いて、10回のタッピングを行った。不織布への色移りを目視により観察し、以下の基準により評価した。得られた結果は表1のとおりであった。
A:不織布への色移りが確認されなかった。
B:不織布への色移りがわずかに確認された。
C:不織布への色移りがBよりも多く確認された。
Claims (12)
- 油分、油溶性被膜剤、ベタイン型界面活性剤、および水を含んでなる、静置時に相分離する化粧料組成物。
- 前記ベタイン型界面活性剤が、ラウリルベタイン、コカミドプロピルベタイン、アミノベタイン、およびスルホベタインからなる群から選択される、請求項1に記載の組成物。
- 前記ベタイン型界面活性剤の配合量が、組成物の総量に対して、0.01~0.2質量%である、請求項1または2に記載の組成物。
- 前記油溶性被膜剤と前記ベタイン型界面活性剤との配合比が、質量基準で、100:1~5:1である、請求項1または2に記載の組成物。
- 前記油溶性被膜剤が、シリコーン系被膜剤である、請求項1または2に記載の組成物。
- 前記油溶性被膜剤が、レジン構造とリニア構造とを含んでなり、
前記レジン構造が、SiO4/2で表される単位またはR1SiO3/2(R1はC1-6アルキル基またはC1-6アルコキシ基である)で表される単位を含んでなり、
前記リニア構造が、R2SiO2/2(R2はC1-6アルキル基またはC1-6アルコキシ基である)で表される単位を含んでなり、
前記レジン構造と前記リニア構造がSi-O-Si結合によって連結されているポリマーである、請求項1または2に記載の組成物。 - 前記油溶性被膜剤が、シリコーンレジンガムである、請求項1または2に記載の組成物。
- 前記油溶性被膜剤が、(トリメチルシロキシケイ酸/ジメチコノール)クロスポリマーである、請求項1または2に記載の組成物。
- 仕上げ化粧料組成物である、請求項1または2に記載の組成物。
- 請求項1または2に記載の組成物をディスペンサー型容器に充填されてなる化粧料。
- 前記組成物がミスト状に噴出される、請求項10に記載の化粧料。
- 使用前に振とうにより前記組成物を乳化させる、請求項10または11に記載の化粧料。
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| JP2017088569A (ja) * | 2015-11-13 | 2017-05-25 | 株式会社ファンケル | 化粧料 |
| WO2018221519A1 (ja) * | 2017-05-31 | 2018-12-06 | 株式会社 資生堂 | 仕上げ用化粧料 |
| WO2020036062A1 (ja) * | 2018-08-15 | 2020-02-20 | ダウ・東レ株式会社 | 水中油型乳化化粧料 |
| WO2020175398A1 (ja) * | 2019-02-27 | 2020-09-03 | 株式会社コーセー | 多層型メイクアップ保護化粧料 |
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| JP2017088569A (ja) * | 2015-11-13 | 2017-05-25 | 株式会社ファンケル | 化粧料 |
| WO2018221519A1 (ja) * | 2017-05-31 | 2018-12-06 | 株式会社 資生堂 | 仕上げ用化粧料 |
| WO2020036062A1 (ja) * | 2018-08-15 | 2020-02-20 | ダウ・東レ株式会社 | 水中油型乳化化粧料 |
| WO2020175398A1 (ja) * | 2019-02-27 | 2020-09-03 | 株式会社コーセー | 多層型メイクアップ保護化粧料 |
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| JP2025069328A (ja) * | 2022-12-28 | 2025-04-30 | 株式会社コーセー | 多層型メイクアップ保護化粧料 |
| JP7701565B2 (ja) | 2022-12-28 | 2025-07-01 | 株式会社コーセー | 多層型メイクアップ保護化粧料 |
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