发明授权
- 专利标题: O/W/O type multiphase emulsion
- 专利标题(中): O / W / O型多相乳液
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申请号: US147821申请日: 1999-03-15
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公开(公告)号: US6150425A公开(公告)日: 2000-11-21
- 发明人: Tomoko Sekine , Fumiaki Matsuzaki , Toshio Yanaki , Michihiro Yamaguchi
- 申请人: Tomoko Sekine , Fumiaki Matsuzaki , Toshio Yanaki , Michihiro Yamaguchi
- 申请人地址: JPX Tokyo
- 专利权人: Shiseido Company, Ltd.
- 当前专利权人: Shiseido Company, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX9-208458 19970717; JPX9-208459 19970717
- 主分类号: A61K8/06
- IPC分类号: A61K8/06 ; A61K9/113 ; A61Q19/00 ; B01F17/28 ; B01F3/08 ; B01F17/54
摘要:
An O/W/O type multiple emulsion in which an O/W type emulsion is dispersed in the outer phase oil wherein the O/W type emulsion in the inner phase contains water, an oil based ingredient, a surfactant and an amphiphilic substance chosen from those which can form a gel at ordinal temperature or higher in an amphiphilic substance-surfactant-oil-water system or N-long chain acyl acidic amino acid monosalt and an amphiphilic substance chosen from those which can form a gel at ordinal temperature or higher in an amphiphilic substance-N-long chain acyl acidic amino acid monosalt-oil-water system, said outer phase oil contains organophilic modified clay minerals and an emulsifying agent with a HLB of 7 or lower, and the weight ratio of the O/W type emulsion and the outer phase oil is 2:3-19:1. An O/W/O type multiple emulsion with superior stability over time and good usability.
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