公开(公告)号：US10350553B2

公开(公告)日：2019-07-16

申请号：US13578946

申请日：2011-02-16

申请人： Takashi Kamada ,  Takuji Shintani ,  Toshinori Tsuru ,  Tomohisa Yoshioka ,  Chunlong Kong

发明人： Takashi Kamada ,  Takuji Shintani ,  Toshinori Tsuru ,  Tomohisa Yoshioka ,  Chunlong Kong

IPC分类号： B01D71/56 ,  B01D69/02 ,  B01D69/12 ,  C02F1/44 ,  B01D61/02 ,  C02F103/04 ,  C02F103/08

摘要： The present invention provides a composite separation membrane with improved separation performance, particularly with an increased permeation flux. The composite separation membrane of the present invention includes a porous support (2) and a separation functional layer (1) formed on this support (2). The separation functional layer (1) is a polyamide membrane having a “double-folded structure” including a first layer portion (11) with a plurality of projections (15a, (15b . . . ) and a second layer portion (12) that covers at least one or some (15c and 15d) of these projections. Some projections (15a and 15b) of the first layer portion (11) extend upward and branch to form the second layer portion (12). There is a vacant space (13) between the first layer portion (11) and the second layer portion (12).

公开(公告)号：US20130037482A1

公开(公告)日：2013-02-14

申请号：US13578946

申请日：2011-02-16

申请人： Takashi Kamada ,  Takuji Shintani ,  Toshinori Tsuru ,  Tomohisa Yoshioka ,  Chunlong Kong

发明人： Takashi Kamada ,  Takuji Shintani ,  Toshinori Tsuru ,  Tomohisa Yoshioka ,  Chunlong Kong

IPC分类号： B01D71/56 ,  B01D69/12

CPC分类号： B01D71/56 ,  B01D61/025 ,  B01D61/027 ,  B01D69/02 ,  B01D69/125 ,  B01D2325/06 ,  C02F1/44 ,  C02F1/441 ,  C02F1/442 ,  C02F2103/04 ,  C02F2103/08

摘要： The present invention provides a composite separation membrane with improved separation performance, particularly with an increased permeation flux. The composite separation membrane of the present invention includes a porous support (2) and a separation functional layer (1) formed on this support (2). The separation functional layer (1) is a polyamide membrane having a “double-folded structure” including a first layer portion (11) with a plurality of projections (15a, (15b . . . ) and a second layer portion (12) that covers at least one or some (15c and 15d) of these projections. Some projections (15a and 15b) of the first layer portion (11) extend upward and branch to form the second layer portion (12). There is a vacant space (13) between the first layer portion (11) and the second layer portion (12).

摘要翻译： 本发明提供了具有改善的分离性能，特别是具有增加的渗透通量的复合分离膜。 本发明的复合分离膜包括形成在该载体（2）上的多孔载体（2）和分离功能层（1）。 分离功能层（1）是具有双折叠结构的聚酰胺膜，包括具有多个突起（15a，15b）和第二层部分（12）的第一层部分（11） 这些突起的至少一个或一些（15c和15d），第一层部分（11）的一些突起（15a和15b）向上延伸并分支以形成第二层部分（12），存在空的空间（13） 在第一层部分（11）和第二层部分（12）之间。