粉体含有乳化剤形の皮膚外用剤
- 专利权人:
- ポーラ化成工業株式会社
- 发明人:
- 本郷 嘉人
- 申请号：
- JP2007333813
- 公开号：
- JP5367257B2
- 申请日:
- 2007.12.26
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a means for improving the dispersion stability of a powdery material in a skin preparation for external use of a powdery materials-containing emulsified preparation form.
SOLUTION: This skin preparation for external use of an oil-in-water type emulsified preparation form, containing 5 to 30 mass% powdery material of which the surface is treated with a multilayer-covering, is provided by incorporating an acyl lactic acid and/or its salt. The above multilayer-covering treatment is preferably performed by using &ge2 kinds of treatments selected from an acylated amino acid salt-covering treatment, a dimethylpolysiloxane-baking treatment, a hydrogen methylpolysiloxane-baking treatment, a silylation treatment and a phospholipid-covering treatment one by one on the powdery material, and it is more preferable that the powdery material is obtained by performing the hydrogen methylpolysiloxane-baking treatment after covering the powdery material becoming a substrate material with an acylglutamic acid metal salt. The acyl group of the above acyl lactic acid and/or its salt is preferably a lauroyl group, a myristoyl group, a palmitoyl group, a stearoyl group, a behenoyl group or an oleyl group.
COPYRIGHT: (C)2009,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
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