ZIRCONIUM OXIDE DISPERSION, PROCESS FOR PRODUCTION

专利名称：ZIRCONIUM OXIDE DISPERSION, PROCESS

FOR PRODUCTION THEREOF, AND RESINCOMPOSITIONS CONTAINING SAME

发明人：NAKAGAWA, KENICHI,MORITA, TAKANORI申请号：EP09830430申请日：20091126公开号：EP2371768A4公开日：20120905

摘要：The invention provides a dispersion of zirconium oxide having a content as highas 20% by weight or more, but a low viscosity, and having a high transparency, which has atransmittance of 35% or more at a wave length of 400 nm, a transmittance of 95% ormore at a wave length of 800 nm, and a viscosity of 20 mPa·s or less at a temperature of25°C. Such a dispersion of zirconium oxide can be obtained by reacting a zirconium saltwith 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 ofone mole part or more per mole part of the zirconium in the slurry; hydrothermallytreating the slurry at a temperature of 170°C or higher; and washing and concentratingthe resulting aqueous dispersion of particles of zirconium oxide.

申请人：SAKAI CHEMICAL INDUSTRY CO., LTD.

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