Title:
酸化ジルコニウム分散液の製造方法
Document Type and Number:
Japanese Patent JP5397829
Kind Code:
B2
Abstract:
The invention provides a dispersion of zirconium oxide having a content as high as 20% by weight or more, but a low viscosity, and having a high transparency, which has a transmittance of 35% or more at a wave length of 400 nm, a transmittance of 95% or more at a wave length of 800 nm, and a viscosity of 20 mPa·s or less at a temperature of 25°C. Such a dispersion of zirconium oxide can be obtained by reacting a zirconium salt with an alkali in water to obtain a slurry of particles of zirconium oxide; filtering, washing, and repulping the slurry; adding an organic acid to the resulting slurry in an amount of one mole part or more per mole part of the zirconium in the slurry; hydrothermally treating the slurry at a temperature of 170°C or higher; and washing and concentrating the resulting aqueous dispersion of particles of zirconium oxide.
More Like This:
Inventors:
Kenichi Nakagawa
Morita
Morita
Application Number:
JP2008309940A
Publication Date:
January 22, 2014
Filing Date:
December 04, 2008
Export Citation:
Assignee:
Sakai Chemical Industry Co., Ltd.
International Classes:
C01G25/02; C01G25/00; C08F2/44; C08K3/22; C08L101/00
Domestic Patent References:
| JP2008031023A | ||||
| JP5024844A | ||||
| JP2006143535A | ||||
| JP61016809A |
Attorney, Agent or Firm:
Ichiro Makino