发明名称 |
Metal oxide coating of water insoluble ingredients |
摘要 |
The invention relates to process for coating a solid, water-insoluble particulate matter, with a metal oxide comprising: (a) contacting the solid water-insoluble particulate matter with a cationic additive in an aqueous medium to obtain a dispersion of said particulate matter having a positive zeta potential; (b) coating the solid water-insoluble particulate matter by precipitation of a metal oxide salt onto the surface of the particulate matter, forming a metal oxide layer thereon; and (c) aging said coating layer. The invention further relates to coated particulate matter obtained by the process and to compositions comprising solid, water-insoluble particulate matter, coated by a metal oxide layer, the particulate matter being a dermatological active agent or a pesticide.; The invention additionally relates to methods of treating a surface condition in a subject using compositions comprising solid, water insoluble dermatologically active agent, coated by a metal oxide layer. |
申请公布号 |
EP2431089(A1) |
申请公布日期 |
2012.03.21 |
申请号 |
EP20110181054 |
申请日期 |
2006.08.02 |
申请人 |
SOL-GEL TECHNOLOGIES LTD. |
发明人 |
TOLEDANO, OFER;SERTCHOOK, HANAN;LOBODA, NATALIA;BAR-SIMANTOV, HAIM |
分类号 |
B01J13/02;A01N25/26;A01N25/28;A01N51/00;A01N53/00;A61K8/11;A61K9/16;A61K9/50;A61Q19/00;B01J13/22 |
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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