| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 02.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
- Prepg hydrous zirconia sol having size < 0.1 micro.m ob tained by hydrolysis of an aq soln of Zr salt at 90C - boiling point of aq soln - Mixing hydrous zirconia sol with Ce compd to provide CeO2/ZrO2 5/95 - 60/40 - Baking mixt at 300-700C to obtain zirconia fine powder having ceria solid-solubilized therein in molar ratio of Ceria/Zirconia 5/95-60/40, said particles having BET specific surface area 40-200 square.m/g & size < 0.1 micro .m measured by an electron microscope, wherein Size (measured by electron microscope)/Size(Calculated from BET specific surface area) > 0.9 |
| PATENT PHOTOCOPY | Available on request |
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