Filter material, and process for removing ozone from gases...

Details Filter material, and process for removing ozone from gases... Filter material, and process for removing ozone from gases...

B - Operations, Transporting

01

J

B01J 20/26 (2006.01) B01D 15/00 (2006.01) B01D 19/00 (2006.01) B01D 53/00 (2006.01) B01D 53/34 (2006.01) B01D 53/66 (2006.01) C08G 75/02 (2006.01)

Patent

CA 2162133

A filter material based on a polyarylene thioether having repeating units of the formula -[(Ar1)n-X]m-[(Ar2)i-Y]j-[(Ar3)k-Z]]1-[(Ar4)o-W]p- (I) in which Ar1, Ar2, Ar3, Ar4, W, X, Y and Z, independently of each other, are identical or different, the indices n, m, i, j, k, l, o and p, independently of each other, are zero or integers 1, 2, 3 or 4, their sum being at least 2, Ar1, Ar2, Ar3 and Ar4 are arylene systems having 6 to 18 carbon atoms, and W, X, Y and Z are divalent linking groups, selected from -SO2-, -S-, -SO-, -CO-, -O-, -CO2-, or alkylene groups or alkylidene groups having 1 to 6 carbon atoms is suitable for removing ozone from gases or liquids. The removal proceeds quantitatively, no volatile products being formed.

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