Title:
TITANIUM OXIDE HAVING UNEVENNESS-MASKING EFFECT
Document Type and Number:
WIPO Patent Application WO/2013/147012
Kind Code:
A1
Abstract:
The present invention provides a titanium oxide having an excellent unevenness-masking effect. This titanium oxide consists of titanium oxide particles which are each composed of rod-shaped titanium oxide primary particles that are gathered into a three-dimensionally radial form and which have particle diameters of 0.5 to 50μm. Further, the titanium oxide is characterized in that: the inner ends of the primary particles agglomerate to form a core which is the central part of the titanium oxide particle, while the outer ends thereof form protrusions extending from the core; and the lengths of the protrusions are 0.05 to 0.5μm. The diameters of the protrusions are 0.01 to 0.2μm, and the lengths of the protrusions may be equivalent to or longer than the diameters thereof. The titanium oxide may be further coated with an oxide of iron such as iron oxyhydroxide or iron oxide, silica, or a combination of two or more of them.
Inventors:
SHIO SHOICHIRO (JP)
Application Number:
PCT/JP2013/059234
Publication Date:
October 03, 2013
Filing Date:
March 28, 2013
Export Citation:
Assignee:
SHISEIDO CO LTD (JP)
International Classes:
C01G23/053; A61K8/29; A61Q1/02; A61Q1/04; A61Q1/10; A61Q1/12; A61Q17/04; C09C1/36; C09C3/06
Foreign References:
| JP2003192349A | 2003-07-09 | |||
| JP2004292266A | 2004-10-21 | |||
| JP2006089297A | 2006-04-06 | |||
| JP2008081366A | 2008-04-10 | |||
| JP2011001199A | 2011-01-06 | |||
| JP2010173863A | 2010-08-12 | |||
| JP2008056535A | 2008-03-13 | |||
| JPH07330338A | 1995-12-19 |
Attorney, Agent or Firm:
IWAHASHI YUJI (JP)
Yuji Iwahashi (JP)
Yuji Iwahashi (JP)
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