Title:
TRIVALENT METAL-DOPED HEXAGONAL PLATE-SHAPED ZINC OXIDE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/230473
Kind Code:
A1
Abstract:
The present invention provides a zinc oxide that has an excellent infrared shielding performance, a high whiteness, and also an excellent tactile sensation during use. The present invention is a trivalent metal-doped hexagonal plate-shaped zinc oxide having an aspect ratio of at least 2.5, the trivalent metal-doped hexagonal plate-shaped zinc oxide being characterized by a content of the trivalent metal element with reference to the element zinc of 0.15 to 5 mol%, a whiteness of at least 90, and a powder spectral reflectance at a wavelength of 1500 nm of not more than 80%.
Inventors:
YOSHIDA RYOHEI (JP)
HASHIMOTO MITSUO (JP)
MURAI KAZUTAKA (JP)
HASHIMOTO MITSUO (JP)
MURAI KAZUTAKA (JP)
Application Number:
PCT/JP2018/022075
Publication Date:
December 20, 2018
Filing Date:
June 08, 2018
Export Citation:
Assignee:
SAKAI CHEMICAL INDUSTRY CO (JP)
International Classes:
C01G9/02; C01G9/00; A61K8/27; A61Q1/00
Domestic Patent References:
| WO2015118777A1 | 2015-08-13 | |||
| WO2015098992A1 | 2015-07-02 | |||
| WO2015098945A1 | 2015-07-02 | |||
| WO2015033990A1 | 2015-03-12 | |||
| WO2012147886A1 | 2012-11-01 | |||
| WO2015118777A1 | 2015-08-13 |
Foreign References:
| JPH0672821A | 1994-03-15 | |||
| JPH0426514A | 1992-01-29 | |||
| JP2003054947A | 2003-02-26 | |||
| JP2016013953A | 2016-01-28 | |||
| JPH0680421A | 1994-03-22 | |||
| JPH0769627A | 1995-03-14 |
Other References:
See also references of EP 3640213A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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