| 发明名称 |
METHOD FOR MANUFACTURING A RIGID REFRACTORY INSULATING MATERIAL, AND MATERIAL THEREBY OBTAINED. |
| 摘要 |
<p>A refractory ceramic material, including a porous base refractory material and a zirconia protective layer covering walls of pores of the porous base refractory material, wherein the refractory ceramic material has a porosity of not less than 80%, and the zirconia protective layer has a thickness not more than about 1 nanometer.</p> |
| 申请公布号 |
EP0497941(B1) |
申请公布日期 |
1994.09.07 |
| 申请号 |
EP19910914232 |
申请日期 |
1991.07.25 |
| 申请人 |
PRODUITS CELLULOSIQUES ISOLANTS- PROCELIS SOCIETE ANONYME: |
发明人 |
GRANDIN DE L'EPREVIER, ALAIN |
| 分类号 |
B22D11/10;B22D41/02;B22D41/32;B22D41/54;C04B41/50;C04B41/87;(IPC1-7):C04B41/87 |
主分类号 |
B22D11/10 |
| 代理机构 |
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代理人 |
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| 地址 |
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