| 发明名称 |
Silica for toothpaste compositions, especially compatible with zinc. |
| 摘要 |
<p>Silica capable of being employed especially in dentifrice compositions. The silica of the invention is characterised in that it has a surface chemistry such that the number of OH expressed as OH/nm<2> is not more than 15 and that its zero charge point (ZCP) is between 3 and 6.5 and a compatibility with zinc of at least 50 %.</p> |
| 申请公布号 |
GR3004224(T3) |
申请公布日期 |
1993.03.31 |
| 申请号 |
GR19920400594T |
申请日期 |
1992.04.01 |
| 申请人 |
RHONE-POULENC CHIMIE |
发明人 |
PERSELLO, JACQUES |
| 分类号 |
A61K8/00;A61K8/21;A61K8/24;A61K8/25;A61Q11/00;C01B33/12;C01B33/154;C01B33/187;C01B33/193;C01G9/00;(IPC1-7):C01B33/193;A61K7/16 |
主分类号 |
A61K8/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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