Invention Grant
- Patent Title: High performance positively charged composite membranes and their use in nanofiltration processes
- Patent Title (中): 高性能带正电荷的复合膜及其在纳滤过程中的应用
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Application No.: US13866498Application Date: 2013-04-19
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Publication No.: US09120062B2Publication Date: 2015-09-01
- Inventor: Martin Weber , Christian Maletzko , Bernd Trotte , Peishan Zhong , Tai-Shung Chung
- Applicant: BASF SE , National University of Singapore
- Applicant Address: DE Ludwigshafen SG Singapore
- Assignee: BASF SE,NATIONAL UNIVERSITY OF SINGAPORE
- Current Assignee: BASF SE,NATIONAL UNIVERSITY OF SINGAPORE
- Current Assignee Address: DE Ludwigshafen SG Singapore
- Agency: Drinker Biddle & Reath LLP
- Main IPC: C08G8/02
- IPC: C08G8/02 ; B01D71/68 ; B01D67/00 ; B01D69/12 ; B01D71/78 ; B01D61/02
Abstract:
The present invention is directed to positively charged nanofiltration (NF) membranes comprising a substrate layer (S) based on a sulfonated polymer and a positively charged film layer (F) on top of said substrate, and to a method for their preparation. Furthermore, the present invention is directed to nanofiltration processes making use of said composite membrane.
Public/Granted literature
- US20130306551A1 HIGH PERFORMANCE POSITIVELY CHARGED COMPOSITE MEMBRANES AND THEIR USE IN NANOFILTRATION PROCESSES Public/Granted day:2013-11-21
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