B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 69/12 (2006.01) B01D 67/00 (2006.01) B01D 71/44 (2006.01)
Patent
CA 2118531
ABSTRACT OF THE DISCLOSURE A gas separation membrane and a process for applying a fluoropolymer, preferably an amorphous polymer of perfluoro-2,2- dimethyl-1,3-dioxole, to a gas separation membrane is disclosed. The membrane for the separation of fluids has a membrane coated with a coating of a fluoropolymer which has an aliphatic ring structure containing fluorine, and in which the primary fluid separating function is provided by the membrane. The process for posttreating a fluid separation membrane comprises applying to the membrane a fluoropolymer having an aliphatic ring structure containing fluorine. The gas separation membrane and the process provide the advantage of a gas separation membrane having improved permselectivity of the membrane with respect to at least one pair of gases, and is also useful for liquid separations.
Borden Ladner Gervais Llp
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
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