发明名称 |
ZIRCONIUM OXIDE DISPERSION, PROCESS FOR PRODUCTION THEREOF, AND RESIN COMPOSITIONS CONTAINING SAME |
摘要 |
<p>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.</p> |
申请公布号 |
EP2371768(A1) |
申请公布日期 |
2011.10.05 |
申请号 |
EP20090830430 |
申请日期 |
2009.11.26 |
申请人 |
SAKAI CHEMICAL INDUSTRY CO., LTD. |
发明人 |
NAKAGAWA, KENICHI;MORITA, TAKANORI |
分类号 |
C01G25/02;C01G25/00;C08K3/22;C08L101/00 |
主分类号 |
C01G25/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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