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 |
ZA200303248(B) |
申请公布日期 |
2004.04.22 |
申请号 |
ZA20030003248 |
申请日期 |
2003.04.25 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED |
发明人 |
MISTRY, KISHOR, KUMAR;PRESTON, JANINE, ANDREA;SYMES, KENNETH, CHARLES |
分类号 |
B01J13/02;B01F17/00;B01J13/16;C08F2/00;C08G69/28;C08G85/00 |
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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