Title:
ZINC OXIDE POWDER, DISPERSION, COMPOSITION, AND COSMETIC
Document Type and Number:
WIPO Patent Application WO/2017/038635
Kind Code:
A1
Abstract:
The zinc oxide powder of the invention contains zinc oxide particles having a primary particle minor axis of from 35 nm to 350 nm and a primary particle Heywood diameter of from 35 nm to 400 nm, and the coefficient of variation in the number distribution of the Heywood diameter of the primary particles is 50% or less.
Inventors:
FUJIHASHI GAKU (JP)
HOSODA SHINGO (JP)
NISHIDA KENICHIRO (JP)
SUMA SYUNSUKE (JP)
HOSODA SHINGO (JP)
NISHIDA KENICHIRO (JP)
SUMA SYUNSUKE (JP)
Application Number:
PCT/JP2016/074846
Publication Date:
March 09, 2017
Filing Date:
August 25, 2016
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD (JP)
International Classes:
C01G9/02; A61K8/04; A61K8/27; A61Q17/04
Domestic Patent References:
WO2010007956A1 | 2010-01-21 | |||
WO2007145285A1 | 2007-12-21 |
Foreign References:
JPH07328421A | 1995-12-19 | |||
JP2015110530A | 2015-06-18 | |||
JP2003162145A | 2003-06-06 | |||
JPH11144773A | 1999-05-28 |
Other References:
See also references of EP 3342755A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Download PDF: