发明申请
- 专利标题： Release sustaining composition and sustained release preparation
- 专利标题（中）： 释放维持组合物和缓释制剂
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申请号： US11028552申请日： 2005-01-05
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公开(公告)号： US20050147676A1公开(公告)日： 2005-07-07
- 发明人: Kazuhisa Hayakawa , Ikuo Fukui
- 申请人： Kazuhisa Hayakawa , Ikuo Fukui
- 申请人地址： JP Tokyo
- 专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2004-002296 20040107
- 主分类号： A61K9/14
- IPC分类号： A61K9/14 ; A61K9/16 ; A61K9/20 ; A61K47/34 ; A61K31/785 ; A61K9/22
摘要：
A release sustaining composition comprising a polyalkylene polyol derivative comprising repeating units U-1 derived from a water-soluble polyalkylene polyol and a polyisocyanate and repeating units U-2 derived from a dihydroxy compound and a polyisocyanate in a molar ratio of U-1/U-2 between 0.5/0.5 and 0.99/0.01 and optionally a water-soluble cellulose ether is combined with an active ingredient to make a sustained release preparation.
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