基本信息:
- 专利标题： 中空狀多孔質膜及其製造方法 HOLLOW POROUS FILM AND MANUFACTURING METHOD THEREOF
- 专利标题（英）：Hollow porous film and manufacturing method thereof
- 专利标题（中）：中空状多孔质膜及其制造方法 HOLLOW POROUS FILM AND MANUFACTURING METHOD THEREOF
- 申请号：TW098116787 申请日：2009-05-20
- 公开(公告)号：TW201002415A 公开(公告)日：2010-01-16
- 发明人： 寺町正史 , 村瀬圭 , 隅敏則 , 廣本泰夫 , 藤木浩之 , 倉科正樹 , 皆川正和
- 申请人： 三菱麗陽股份有限公司
- 申请人地址： MITSUBISHI RAYON CO., LTD. 日本 JP
- 专利权人： 三菱麗陽股份有限公司
- 当前专利权人： 三菱麗陽股份有限公司
- 当前专利权人地址： MITSUBISHI RAYON CO., LTD. 日本 JP
- 代理人： 詹銘文; 蕭錫清
- 优先权： 日本 2008-133504 20080521
- 主分类号： B01D
- IPC分类号： B01D ; C08J
The hollow porous film has the porous film layer with dense layers respectively near the outer surface and the inner surface of the hollow porous film. The manufacturing method of the hollow porous film includes the following steps. A stock solution for film formation is applied continuously to the outer peripheral surface of the support, so as to laminate and condense these stock solutions for film formation, in which the stock solution for film formation contains a material for the porous film layer and a solvent, a first stock solution for film formation and a second stock solution for film formation, This manufacturing method of the hollow porous film forms a porous film by coating a stock solution for film formation, and then condensing the stock solution for film formation, in which the stock solution contains a material for the porous film layer and a solvent. In this manufacture method of the hollow porous film, the support is a hollow knitting string obtained by performing circular knitting on one piece of thread made of multifilament.