Invention Grant
- Patent Title: Water-in-oil emulsion cosmetic material
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Application No.: US16069979Application Date: 2016-12-12
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Publication No.: US11096872B2Publication Date: 2021-08-24
- Inventor: Takayuki Omura
- Applicant: SHISEIDO COMPANY, LTD.
- Applicant Address: JP Tokyo
- Assignee: SHISEIDO COMPANY, LTD.
- Current Assignee: SHISEIDO COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Nolte Lackenback Siegel
- Agent Andrew F. Young, Esq.
- Priority: JPJP2016-007211 20160118
- International Application: PCT/JP2016/086853 WO 20161212
- International Announcement: WO2017/126252 WO 20170727
- Main IPC: A61K8/06
- IPC: A61K8/06 ; A61Q19/00 ; A61Q13/00 ; A61K8/894 ; A61K8/893 ; A61K8/41 ; A61K8/26 ; A61K8/25

Abstract:
A water-in-oil emulsion cosmetic, has good stability and does not cause a decrease in viscosity when a large quantity of fragrance material is blended. The water-in-oil emulsion cosmetic, includes: (a) 5 to 15% by mass of a fragrance material, (b) 1.5 to 3% by mass of dimethyldistearylammonium hectorite, and, (c) a nonionic surfactant, wherein, the (c) nonionic surfactant comprises (c1) 2 to 10% by mass relative to the total weight of the composition of a polyether modified silicone having a C12-22 branched hydrocarbon chain, and may comprise (c2) 10% by mass or less relative to the total weight of the composition of a polyether modified silicone having no alkyl chain, wherein, a ratio of the total blending quantity of the component (c1) and the component (c2) relative to a blending quantity of the component (b) is 2 or more, a ratio of the total blending quantity of the component (c1) and the component (c2) to a blending quantity of the component (a) is 0.8 or more, the total blending quantity of the component (c1) and the component (c2) is 4% by mass or more, a ratio of a blending quantity of the component (c1) to that of the component (c2) is 0.8 or more, and the composition has a hardness of 6 or more as measured using a rheometer.
Public/Granted literature
- US20190038526A1 WATER-IN-OIL EMULSION COSMETIC MATERIAL Public/Granted day:2019-02-07
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