发明申请
US20060193796A1 Method for refining ultraviolet absorbent, ultraviolet absorbent and cosmetic material
审中-公开
紫外线吸收剂，紫外线吸收剂和化妆品的精制方法
- 专利标题： Method for refining ultraviolet absorbent, ultraviolet absorbent and cosmetic material
- 专利标题（中）： 紫外线吸收剂，紫外线吸收剂和化妆品的精制方法
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申请号： US10548496申请日： 2004-03-09
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公开(公告)号： US20060193796A1公开(公告)日： 2006-08-31
- 发明人: Takanori Mizuoka , Yoshiaki Iwamoto , Yoshiaki Takagi , Keiji Ashitaka , Kazunori Nobuhara
- 申请人： Takanori Mizuoka , Yoshiaki Iwamoto , Yoshiaki Takagi , Keiji Ashitaka , Kazunori Nobuhara
- 优先权： JP2003069162 20030314
- 国际申请： PCT/JP04/03006 WO 20040309
- 主分类号： A61K8/36
- IPC分类号： A61K8/36 ; C07C69/88
摘要：
The process for purifying an ultraviolet absorber of the present invention is characterized by including an adsorbent treatment step of bringing the ultraviolet absorber into contact with an absorbent. According to the process, an ultraviolet absorber having a reduced odor, an improved hue and less skin irritation can be obtained.
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