| 发明名称 |
Composite materials. |
| 摘要 |
<p>A composite material for the controlled release of an active substrate comprises a relatively insoluble, e.g. polymeric, matrix (11) in which a soluble particulate material (12) is dispersed. When the composite is placed in an aqueous medium dissolution of the particulate material renders the matrix water permeable. This effect may be used to provide for the controlled release of an active material into the aqueous environment.</p> |
| 申请公布号 |
EP0080330(A2) |
申请公布日期 |
1983.06.01 |
| 申请号 |
EP19820306146 |
申请日期 |
1982.11.18 |
| 申请人 |
STANDARD TELEPHONES AND CABLES PUBLIC LIMITED COMPANY |
发明人 |
DRAKE, CYRIL FRANCIS;JONES, RONALD |
| 分类号 |
A01N25/12;A01N25/26;A01N25/34;A61K9/20;A61K9/22;A61K9/26;A61K9/70;C05G3/00;(IPC1-7):01N25/12;05G3/00;61K9/70;61K9/52;61K9/26;61K9/22;01N25/34;01N25/26 |
主分类号 |
A01N25/12 |
| 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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