Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2007-01-23
2007-01-23
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S684000, C536S103000, C540S145000, C549S010000, C549S347000, C549S348000
Reexamination Certificate
active
11046477
ABSTRACT:
One embodiment of the invention comprises an ion exchange composition formed by reacting unsaturated carbon to carbon moieties pendant from derivatized ion binding cryptands with a support substrate under free radical activation conditions to form a covalent bond therebetween. In another embodiment, a cryptand ion exchange composition is made by covalently bonding unsaturated carbon to carbon moieties pendant from a derivatized ion binding cryptands with unsaturated carbon to carbon moieties pendant from a support substrate under free radical activation conditions to form covalent bond.
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Bordunov Andrei V.
Pohl Christopher A.
Woodruff L. Andy
Barry Chester T.
Brezner David J.
Dionex Corporation
Dorsey & Whitney
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