Title:
POROUS SILICA PARTICLES AND CLEANSING COSMETIC PRODUCT
Document Type and Number:
WIPO Patent Application WO/2016/072456
Kind Code:
A1
Abstract:
The purpose of the invention is to optimize porous silica particles to be used as a scrubbing agent for a cleansing cosmetic product. These porous silica particles have an average circularity of 0.1 to 0.5, a pore volume (Pv) of 1.0 to 2.0 ml/g, a mode diameter (Dm) of 50 to 600 μm, a ratio (D100/Dm) of the maximum particle size (D100) to the mode diameter (Dm) of 3.0 or less; furthermore, after 30 seconds of rubbing with a load of 1.0 to 1.4 KPa, the porous silica particles will have a median diameter (DR50) of 0.5 to 25 μm and a maximum particle size (DR100) of 1 to 100 μm. When a cleansing cosmetic product using these particles is rubbed on the skin, the skin will be rubbed with the friction force generated by friction with the skin, allowing for a mild peeling effect on the stratum corneum and preventing damage to the skin as well as minor scratches to the stratum corneum.
Inventors:
WATANABE SATOSHI (JP)
ENOMOTO NAOYUKI (JP)
MIYOSHI YASUTAKA (JP)
KOMATSU MICHIO (JP)
ENOMOTO NAOYUKI (JP)
MIYOSHI YASUTAKA (JP)
KOMATSU MICHIO (JP)
Application Number:
PCT/JP2015/081180
Publication Date:
May 12, 2016
Filing Date:
November 05, 2015
Export Citation:
Assignee:
JGC CATALYSTS & CHEMICALS LTD (JP)
International Classes:
C01B33/157; A61K8/25; A61Q19/10
Foreign References:
| JP2005307120A | 2005-11-04 | |||
| JP2011225548A | 2011-11-10 | |||
| JPH10324517A | 1998-12-08 |
Other References:
See also references of EP 3216761A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Patent business corporation SSINPAT (JP)
Patent business corporation SSINPAT (JP)
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