Invention Grant
US09327258B2 Porous silica-based particles having smooth surface, method for production thereof and cosmetic comprising such particles
有权
具有光滑表面的多孔二氧化硅基颗粒，其制备方法和包含这种颗粒的化妆品
- Patent Title: Porous silica-based particles having smooth surface, method for production thereof and cosmetic comprising such particles
- Patent Title (中): 具有光滑表面的多孔二氧化硅基颗粒，其制备方法和包含这种颗粒的化妆品
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Application No.: US12746007Application Date: 2007-12-12
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Publication No.: US09327258B2Publication Date: 2016-05-03
- Inventor: Naoyuki Enomoto , Yasutaka Miyoshi , Tsuneo Kawashima , Takumi Miyazaki
- Applicant: Naoyuki Enomoto , Yasutaka Miyoshi , Tsuneo Kawashima , Takumi Miyazaki
- Applicant Address: JP Kawasaki-shi
- Assignee: JGC Catalysts and Chemicals Ltd.
- Current Assignee: JGC Catalysts and Chemicals Ltd.
- Current Assignee Address: JP Kawasaki-shi
- Agency: The Webb Law Firm
- Priority: JP2007-317754 20071207
- International Application: PCT/JP2007/073980 WO 20071212
- International Announcement: WO2009/072218 WO 20090611
- Main IPC: B32B1/00
- IPC: B32B1/00 ; B29B9/16 ; B01J6/00 ; A61K8/25 ; A61Q1/02 ; A61Q17/04 ; A61Q19/00 ; C01B33/12 ; C01B33/18 ; A61K8/02
Abstract:
Disclosed are porous silica-based particles having high surface smoothness, a method for producing the porous silica-based particles, and a cosmetic comprising the porous silica-based particles. The porous silica-based particles have an average particle diameter of 0.5 to 30 μm and have a surface smoothness of a level to such an extent that, when the entire surface of the particle is observed from a photograph thereof taken by a scanning electron microscope (SEM) with a magnifying power of 10,000, a foreign matter attached to the surface thereof can be hardly seen.
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