B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
362/39, 403/4, 3
B01J 39/18 (2006.01) B01J 41/12 (2006.01) C02F 1/42 (2006.01)
Patent
CA 1150448
ABSTRACT OF THE DISCLOSURE According to one aspect of the invention as disclosed, emulsion copolymer particles with diameters smaller than 1.5 micrometers and functionalized with cation exchange functional groups are prepared and suspended as emulsions in liquid media to form liquid cation exchange materials. Also, emulsion copolymer particles with diameters less than 1.5 micrometers are functionalized with anion exchange functional groups by a method involving coagulation of the emulsion, according to another aspect of the invention disclosed herein. Both weekly basic and strongly basic anion exchange resins are prepared from aromatic or acrylic copolymers, and the emulsion coagula may be resuspended to form anion exchange emulsions. Additionally, by a further aspect of the invention as disclosed, ions are exchanged between emulsion ion exchange resins and conventional ion exchange resins during both batch and column contact. This process may be used to place the emulsion resin or the conventional resin in the desired ionic form.
335831
Gowling Lafleur Henderson Llp
Rohm And Haas Company
LandOfFree
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