Invention Application
- Patent Title: WATER-IN-OIL EMULSION COMPOSITION
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Application No.: US17618664Application Date: 2020-02-28
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Publication No.: US20220370308A1Publication Date: 2022-11-24
- Inventor: Makoto UYAMA , Takumi WATANABE , Ayano MATSUO
- Applicant: Shiseido Company, Ltd.
- Applicant Address: JP Chuo-ku, Tokyo
- Assignee: Shiseido Company, Ltd.
- Current Assignee: Shiseido Company, Ltd.
- Current Assignee Address: JP Chuo-ku, Tokyo
- Priority: JP2019-111179 20190614
- International Application: PCT/JP2020/008513 WO 20200228
- Main IPC: A61K8/06
- IPC: A61K8/06 ; A61K8/81 ; A61K8/92

Abstract:
To provide a water-in-oil emulsified composition which highly encapsulates a water content, has high viscosity, and is excellent in emulsification stability.
The water-in-oil emulsified composition of the present disclosure comprises a dispersion medium comprising an oil content, and an oil-soluble copolymer having a monomer unit obtained from a specific hydrophilic monomer, and a monomer unit obtained from a specific hydrophobic monomer; and water droplets dispersed in the dispersion medium, wherein the oil content contains 60% by mass or more of polar oil with an IOB of 0.10 or more, and wherein the water droplets contain water and a surfactant, and the content of the water is 30% by mass or more based on the total amount of the composition.
The water-in-oil emulsified composition of the present disclosure comprises a dispersion medium comprising an oil content, and an oil-soluble copolymer having a monomer unit obtained from a specific hydrophilic monomer, and a monomer unit obtained from a specific hydrophobic monomer; and water droplets dispersed in the dispersion medium, wherein the oil content contains 60% by mass or more of polar oil with an IOB of 0.10 or more, and wherein the water droplets contain water and a surfactant, and the content of the water is 30% by mass or more based on the total amount of the composition.
Public/Granted literature
- US12090218B2 Water-in-oil emulsion composition Public/Granted day:2024-09-17
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