发明名称 |
METHOD FOR PREPARING HOLLOW PARTICLES, AND USES THEREOF |
摘要 |
The invention relates to a method for preparing hollow particles, including: 1) spray-depositing, in particular in a fluidized air bed and onto a substrate that is partially soluble in a liquid medium M, a coating containing: 40 to 100 wt % of at least one compound that is insoluble in water having a pH of less than 5 and that comprises at least one polymer; and 60 to 0 % of at least one water-soluble compound; 2) extracting a portion of the substrate in the medium M; and 3) drying the particles obtained in step 2. The invention also relates to the resulting hollow particles and to the uses thereof, in particular in floating pharmaceutical compositions. |
申请公布号 |
WO2010136740(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
WO2010FR51039 |
申请日期 |
2010.05.28 |
申请人 |
FLAMEL TECHNOLOGIES;CASTAN, CATHERINE;CAISSE, PHILIPPE |
发明人 |
CASTAN, CATHERINE;CAISSE, PHILIPPE |
分类号 |
A61K31/403;A61K9/00;A61K9/16;A61K9/50 |
主分类号 |
A61K31/403 |
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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