发明授权
- 专利标题: Capsule comprising low-substituted cellulose ether and method for preparing the same
- 专利标题(中): 包含低取代纤维素醚的胶囊及其制备方法
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申请号: US13222600申请日: 2011-08-31
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公开(公告)号: US08784883B2公开(公告)日: 2014-07-22
- 发明人: Kazuhisa Hayakawa , Naosuke Maruyama , Miyuki Fukasawa
- 申请人: Kazuhisa Hayakawa , Naosuke Maruyama , Miyuki Fukasawa
- 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
- 代理机构: Alston & Bird LLP
- 优先权: JP2003-429276 20031225
- 主分类号: A61K9/48
- IPC分类号: A61K9/48 ; A61K9/62
摘要:
A capsule with good disintegration properties that can quickly display its content's efficacy as well as a method for preparing the same are provided. More specifically, provided is a capsule comprising a shell comprising low-substituted cellulose ether. Also, provided is a method for preparing a hard capsule comprising the low-substituted cellulose ether comprising a step of covering a pin for forming the hard capsule with the low-substituted cellulose ether by immersing the pin in an alkaline solution of the low-substituted cellulose ether; a step of forming the low-substituted cellulose on a surface of the pin into a gel by further immersing the covered pin in an aqueous acid solution; a step of washing by immersing the pin whose surface has been covered with the gel in water; and a step of drying.