| 发明名称 |
CHEMICALLY STABILIZED CRISTOBALITE |
| 摘要 |
A crystalline composition having an X-ray diffraction pattern essentially the same as the high cristobalite form of silica comprising SiO2, Al2O3 and a metal oxide (MexO) in which Me is selected from Na, Ca, Sr and mixtures thereof.
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| 申请公布号 |
US5096857(A) |
申请公布日期 |
1992.03.17 |
| 申请号 |
US19900606079 |
申请日期 |
1990.10.22 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HU, YUNG-HAW;SALTZEBERG, MICHAEL A. |
| 分类号 |
C01B33/12;C01B33/26;C03C10/14;C03C14/00;H01L21/48;H01L23/498 |
主分类号 |
C01B33/12 |
| 代理机构 |
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