发明授权
- 专利标题： Method of stably producing microporous membrane and use thereof in method of separating and purifying nucleic acid
- 专利标题（中）： 稳定生产微孔膜的方法及其在核酸分离纯化方法中的应用
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申请号： US11630135申请日： 2005-09-15
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公开(公告)号： US08511482B2公开(公告)日： 2013-08-20
- 发明人: Hideaki Tanaka , Yoshihiko Makino
- 申请人： Hideaki Tanaka , Yoshihiko Makino
- 申请人地址： JP Kurashiki-Shi, Okayama
- 专利权人： Kurashiki Boseki Kabushiki Kaisha
- 当前专利权人： Kurashiki Boseki Kabushiki Kaisha
- 当前专利权人地址： JP Kurashiki-Shi, Okayama
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JPP.2004-269855 20040916
- 国际申请： PCT/JP2005/017431 WO 20050915
- 国际公布： WO2006/030964 WO 20060323
- 主分类号： B01D71/16
- IPC分类号： B01D71/16 ; B01D39/16 ; B01D39/14 ; B01D71/12 ; C02F1/44
摘要：
A method of producing a porous membrane, the method comprising: casting a polymer solution, in which a polymer is dissolved in a mixture of a good solvent, a poor solvent and a non-solvent, over a support, so as to form a casted polymer solution; drying the casted polymer solution, so as to form a cast film; and subjecting the cast film to a phase separation, wherein the porous membrane is produced under a condition where a temperature of a casted surface is lower than a temperature of the polymer solution, and each of a temperature change of the polymer solution and a temperature change of the casted surface is kept within ±3.0° C.
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