| 发明名称 |
Method of delivering active material within hydrogel microbeads |
| 摘要 |
A method of delivering active material using microbeads comprising droplets of active material entrained in a hydrophilic matrix. Compositions comprising the microbeads may be sprayable. The microbeads of the invention may be controllable by exposing the microbeads to high or low humidity or moisture.
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| 申请公布号 |
US6793937(B2) |
申请公布日期 |
2004.09.21 |
| 申请号 |
US19990425636 |
申请日期 |
1999.10.22 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
QUONG DOUGLAS |
| 分类号 |
A61K9/50;A01N25/04;A01N25/10;A01N25/28;A01N25/30;A01N31/02;A01N35/06;A01N37/02;A61K8/04;A61K8/34;A61K8/35;A61K8/37;A61K8/73;A61K47/32;A61K47/36;A61Q13/00;A61Q19/00;B01J13/00;B01J13/14;(IPC1-7):A61K9/16 |
主分类号 |
A61K9/50 |
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