Invention Grant
- Patent Title: Composite membrane with multi-layered active layer
- Patent Title (中): 复合膜与多层活性层
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Application No.: US13491506Application Date: 2012-06-07
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Publication No.: US09561474B2Publication Date: 2017-02-07
- Inventor: Radwan A. Alrasheed , Blake W. Davis , Jacquana T. Diep , Geraud J. Dubois , Young-Hye Na , Majed S. Nassar , Ankit Vora
- Applicant: Radwan A. Alrasheed , Blake W. Davis , Jacquana T. Diep , Geraud J. Dubois , Young-Hye Na , Majed S. Nassar , 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: B01D69/10
- IPC: B01D69/10 ; B01D71/76 ; B01D53/22 ; B01D69/12 ; B01D71/56 ; B01D61/00 ; B01D61/02
Abstract:
A thin film composite membrane includes an active layer on a support membrane, wherein the active layer includes at least two chemically distinct first and second crosslinked polyamide film sub-layers. The first film sub-layer includes a polyamide unit; and the second film sub-layer includes a copolyamide with two chemically distinct polyamide units. The first film sub-layer is closer to the support than is the second film sub-layer.
Public/Granted literature
- US20130327714A1 COMPOSITE MEMBRANE WITH MULTI-LAYERED ACTIVE LAYER Public/Granted day:2013-12-12
Information query
