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Title:
OIL-IN-WATER TYPE EMULSION COSMETIC
Document Type and Number:
WIPO Patent Application WO/2018/212222
Kind Code:
A1
Abstract:
Provided is an oil-in-water type emulsion cosmetic that is capable of stably maintaining large-sized oily particles having a diameter exceeding 50 μm in a well-dispersed state or achieving a well-dispersed state thereof merely by lightly shaking, without necessarily adding a water-soluble thickener such as carboxyvinyl polymer to the aqueous phase of the emulsion. The oil-in-water type emulsion cosmetic, wherein oily particles containing a solid fat component and a liquid oil component are dispersed in an aqueous phase, is characterized in that: the average particle diameter of the oily particles is 50 μm to 10 mm; and the difference between the specific gravity of the oily phase constituting the oily particles and the specific gravity of the aqueous phase [(specific gravity of oily phase) - (specific gravity of aqueous phase)] is within the range of -0.010 to +0.100.

Inventors:
SANO, Shusuke (2-2-1 Hayabuchi Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
MATSUSHITA, Yuji (2-2-1 Hayabuchi Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
SATO, Eiko (2-2-1 Hayabuchi Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
TOMINAGA, Naoki (2-2-1 Hayabuchi Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
HASEGAWA, Yoriko (2-2-1 Hayabuchi Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
Application Number:
JP2018/018874
Publication Date:
November 22, 2018
Filing Date:
May 16, 2018
Export Citation:
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Assignee:
SHISEIDO COMPANY, LTD. (5-5 Ginza 7-chome, Chuo-ku Tokyo, 61, 〒1040061, JP)
International Classes:
A61K8/06; A61K8/37; A61K8/891; A61Q5/00; A61Q19/00
Foreign References:
JP2005036001A2005-02-10
JP2012067024A2012-04-05
JPH1036244A1998-02-10
JP4798899B22011-10-19
JP2012067024A2012-04-05
Attorney, Agent or Firm:
UCHIDA, Naoto (WINGREEN, 302 Tomoda-Sanwa Building 1-37-4, Kanda-Jinbo-Cho, Chiyoda-k, Tokyo 51, 〒1010051, JP)
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