发明名称 |
CORE-SHELL PARTICLES AND PROCESS FOR THEIR PREPARATION |
摘要 |
A particulate composition comprising particles having a core comprising a hydrophobic polymer within a shell, characterised in that the shell comprises a semi-permeable membrane. Particulate composition can be used for making a stable dispersion of particles uniformly distributed throughout a first hydrophobic liquid, wherein the particles comprise a core within a shell and the core comprises a hydrophobic polymer into has been imbibed a second hydrophobic liquid. Compositions can be used to encapsulate active substances and may be used in sustained release mechanisms. |
申请公布号 |
CA2427939(A1) |
申请公布日期 |
2002.05.10 |
申请号 |
CA20012427939 |
申请日期 |
2001.10.23 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED |
发明人 |
PRESTON, JANINE ANDREA;SYMES, KENNETH CHARLES;MISTRY, KISHOR KUMAR |
分类号 |
B01J13/02;B01F17/00;B01J13/16;C08F2/00;C08G69/28;C08G85/00;(IPC1-7):B01J13/16 |
主分类号 |
B01J13/02 |
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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