B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 71/56 (2006.01) B01D 67/00 (2006.01) B01D 69/12 (2006.01)
Patent
CA 2374817
A composite membrane and method for making the same, comprising a porous support and a crosslinked polyamide surface having polyalkylene oxide groups grafted thereto. The subject membrane provides improved resistance to fouling while offering excellent flux and salt passage performance. The subject method is easily adapted to commercial scale-up and does not require the use of chemical initiators.
L'invention concerne une membrane composite ainsi qu'un procédé de fabrication associé, cette membrane comprenant un support poreux ainsi qu'une surface polyamide réticulée sur laquelle ont été greffés des groupes d'oxyde de polyalkylène. La membrane de l'invention possède une résistance accrue aux salissures tout en offrant d'excellentes caractéristiques de passage du flux et du sel. Le procédé de l'invention s'adapte facilement à une production à l'échelle commerciale et ne nécessite pas l'utilisation d'amorceurs chimiques.
Dow Global Technologies Inc.
Smart & Biggar
The Dow Chemical Company
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