Crosslinked, non-swellable ampholytic base resins
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United States of America Patent
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Jul 16, 2002
Grant Date -
N/A
app pub date -
Apr 15, 1999
filing date -
Apr 15, 1998
priority date (Note) -
Expired
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Abstract
Described are non-swelling, crosslinked, bead forms of ampholytic base polymers that can be utilized in the chromatographic-type separation of acids from other compounds. Preferred polymers are prepared by modifying a poly-2 or poly-4-vinylpyridine resin crosslinked with divinylbenzene.
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