发明名称 |
Lactic acid polymer and process for producing the same |
摘要 |
<p>A pharmaceutical preparation, e.g. a sustained-release microcapsule preparation, comprising a lactic acid polymer of 15,000 to 50,000 in weight-average molecular weight, the content of polymeric materials having not more than about 5,000 in weight-average molecular weight therein being not more than about 5% by weight. The sustained-released microcapsule preparation encapsulating a physiologically active substance can fully prevent the initial excessive release of the physiologically active substance from the microcapsules and keep a stable release rate over a long period of time.</p> |
申请公布号 |
EP1693054(A2) |
申请公布日期 |
2006.08.23 |
申请号 |
EP20060007072 |
申请日期 |
2001.08.06 |
申请人 |
WAKO PURE CHEMICAL INDUSTRIES, LTD.;TAKEDA PHARMACEUTICAL COMPANY LIMITED |
发明人 |
YAMAMOTO, KOHEI;AOKI, TAKASHI;TANI, TSUTOMU;HATA, YOSHIO |
分类号 |
A61K9/16;A61K9/52;A61K9/50;A61K38/09;A61K47/34;C08G63/08;C08G63/88;C08G63/89;C08G63/91;C08L101/16 |
主分类号 |
A61K9/16 |
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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