发明名称 |
Control of process humidity to produce large, porous particles |
摘要 |
Spray dried particles having specified aerodynamic characteristics are produced by atomizing a liquid feed and contacting the liquid feed with a drying gas, such as, for example, air or nitrogen. The humidity of the drying gas is controlled to a value, expressed, for instance, as dew point, which is known to produce particles having a specified tap density or aerodynamic diameter. Particles having a volume median geometric diameter greater than about 5 microns and a tap density less than about 0.4 g/cm<3 >are preferred.
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申请公布号 |
US6848197(B2) |
申请公布日期 |
2005.02.01 |
申请号 |
US20010837620 |
申请日期 |
2001.04.18 |
申请人 |
ADVANCED INHALATION RESEARCH, INC.;THE PENN STATE RESEARCH FOUNDATION, INC. |
发明人 |
CHEN DONGHAO;BATYCKY RICHARD P.;JOHNSTON LLOYD;MINTZES JEFFREY |
分类号 |
A61K9/72;A61K9/00;A61K9/14;A61K9/16;A61K47/24;A61L9/04;B05D7/00;E02F5/10;(IPC1-7):E02F5/10;A01N25/02 |
主分类号 |
A61K9/72 |
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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