B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
403/2
B01D 71/06 (2006.01) B01D 69/00 (2006.01)
Patent
CA 1287442
ABSTRACT A anion-exchange chromatographic packing composition which comprises; a substrate which comprises insoluble synthetic resinous particles of a low porosity gel type having cation-exchanging sites at least on their available surfaces, the particles having a diameter of from 1 to 75 microns; and a liquid coating which comprises a hydrophilic, water soluble, film forming aminated resin having anion- exchanging sites which attract available cation- exchanging sites of the substrate, wherein the liquid coating is retained by electrostatic bonds on the available surfaces of the substrate particles. The invention further includes a chromatographic column and process using the described packing composition.
518912
Langhorst Martin A.
Randall Osro W. III
Stevens Timothy S.
Langhorst Martin A.
Randall Osro W. III
Smart & Biggar
Stevens Timothy S.
The Dow Chemical Company
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