发明授权
- 专利标题: Hydrophilic polyurethane compositions
- 专利标题(中): 亲水性聚氨酯组合物
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申请号: US12307514申请日: 2007-06-27
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公开(公告)号: US08974813B2公开(公告)日: 2015-03-10
- 发明人: Jukka Tuominen , Amaia Zurutuza , Mark Livingstone , Janet Anne Halliday
- 申请人: Jukka Tuominen , Amaia Zurutuza , Mark Livingstone , Janet Anne Halliday
- 申请人地址: NL Hoofddorp
- 专利权人: Ferring B.V.
- 当前专利权人: Ferring B.V.
- 当前专利权人地址: NL Hoofddorp
- 代理机构: Fish & Richardson P.C.
- 优先权: GB0613333.4 20060705
- 国际申请: PCT/GB2007/002401 WO 20070627
- 国际公布: WO2008/003932 WO 20080110
- 主分类号: A61F6/14
- IPC分类号: A61F6/14 ; A61F13/00 ; A61K47/30 ; C08G18/20 ; A61K9/00 ; C08G18/48 ; C08G18/73 ; C08G18/75 ; A61K47/34
摘要:
A water-swellable linear polymer is made by reacting together a polyethylene oxide of number average molecular weight less than 4,000, an aliphatic diol, and a difunctional diisocyanate. Controlled release composition comprises the polymer together with an active agent. The polymer is able to take up pharmaceutically active agents of molecular weight 200 to 20,000.
公开/授权文献
- US20090291120A1 Hydrophilic Polyurethane Compositions 公开/授权日:2009-11-26
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