| 发明名称 |
Amorphous silica |
| 摘要 |
An amorphous silica, especially precipitated silica, suitable for use in toothpastes, has a high abrasivity represented by a perspex abrasion value in the range from about 23 to about 35.
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| 申请公布号 |
US5447704(A) |
申请公布日期 |
1995.09.05 |
| 申请号 |
US19930158818 |
申请日期 |
1993.11.29 |
| 申请人 |
UNILEVER PATENT HOLDINGS B.V. |
发明人 |
ALDCROFT, DEREK;NEWTON, JOHN R.;QUINN, JAMES P.;STAINIER, PETER W. |
| 分类号 |
A61K8/00;A61K8/25;A61K33/18;A61Q11/00;C01B33/12;C01B33/193;(IPC1-7):C01B31/12 |
主分类号 |
A61K8/00 |
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