Invention Grant
- Patent Title: Composite membranes and methods of preparation thereof
- Patent Title (中): 复合膜及其制备方法
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Application No.: US13053138Application Date: 2011-03-21
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Publication No.: US09022227B2Publication Date: 2015-05-05
- Inventor: Young-Hye Na , Ratnam Sooriyakumaran , Ankit Vora
- Applicant: Young-Hye Na , Ratnam Sooriyakumaran , Ankit Vora
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: B01D71/56
- IPC: B01D71/56 ; B01D69/12 ; B01D61/02
Abstract:
A polymeric membrane includes an active layer over a support, wherein the active layer includes at least two chemically distinct polyamide films. A first one of the films is in contact with the support, and a second one of the films is not in contact with the support. The second polyamide film is crosslinked with the first polyamide film at an interface therewith, and the second polyamide film includes a structure having a side chain group including an ammonium salt.
Public/Granted literature
- US20120241373A1 COMPOSITE MEMBRANES AND METHODS OF PREPARATION THEREOF Public/Granted day:2012-09-27
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