发明名称 |
Agglomeration of finely divided powders |
摘要 |
A method of treating a finely divided powder is provided including a) forcing the powder through the apertures of a sieve to form agglomerates; and b) spheronizing the agglomerates. The method results in spheronized agglomerates having sufficient strength to withstand processing and packaging operations, but which are sufficiently soft to deagglomerate during delivery via a breath-actuated inhaler.
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申请公布号 |
US6371171(B1) |
申请公布日期 |
2002.04.16 |
申请号 |
US19940316938 |
申请日期 |
1994.10.03 |
申请人 |
ASTRA AKTIEBOLAG |
发明人 |
TROFAST EVA ANN-CHRISTIN;OLSSON MAGNUS;AHLNECK CLAES |
分类号 |
A61J3/06;A61K9/16;B01J2/00;B01J2/20;(IPC1-7):A61K31/00 |
主分类号 |
A61J3/06 |
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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