Title:
COMPOSITE PARTICLES IN WHICH TITANIUM DIOXIDE MICROPARTICLES ARE DISPERSED, AND COSMETIC
Document Type and Number:
WIPO Patent Application WO/2017/110053
Kind Code:
A1
Abstract:
These composite particles (1) in which titanium dioxide microparticles are dispersed are provided with silica particles (10) and titanium dioxide microparticles (20). The titanium dioxide microparticles (20) are dispersed within the silica particles (10). The titanium dioxide microparticles (20) are rutile-type microparticles having an average primary particle diameter of 2-8 nm. These composite particles (1) in which titanium dioxide microparticles have high transparency with respect to visible light.
Inventors:
SHIMOKAWA KOSEI (JP)
DOSHITA KAZUHIRO (JP)
YAMAJI KOICHI (JP)
YAMASHITA JUN (JP)
DOSHITA KAZUHIRO (JP)
YAMAJI KOICHI (JP)
YAMASHITA JUN (JP)
Application Number:
PCT/JP2016/005066
Publication Date:
June 29, 2017
Filing Date:
December 06, 2016
Export Citation:
Assignee:
NIPPON SHEET GLASS CO LTD (JP)
International Classes:
A61K8/29; A61Q17/04; B82Y30/00; C01B33/18
Domestic Patent References:
| WO2007039953A1 | 2007-04-12 | |||
| WO2002024153A1 | 2002-03-28 |
Foreign References:
| JPS6284017A | 1987-04-17 | |||
| JP2003119006A | 2003-04-23 | |||
| JP2013511483A | 2013-04-04 | |||
| JPS63126818A | 1988-05-30 | |||
| JPH11343222A | 1999-12-14 | |||
| JPH0812961A | 1996-01-16 | |||
| JP2013249229A | 2013-12-12 | |||
| JP2014084251A | 2014-05-12 | |||
| JP2000034122A | 2000-02-02 | |||
| JPH11322337A | 1999-11-24 |
Other References:
See also references of EP 3395322A4
Attorney, Agent or Firm:
KAMADA, Koichi et al. (JP)
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