Selective imidazole ion exchange resins
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United States of America Patent
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Aug 30, 1983
Grant Date -
N/A
app pub date -
Mar 10, 1981
filing date -
Mar 12, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A polymeric ion exchange resin of the cross-linked type in which the active groups may be constituted either wholly or in part by an imidazole group which is, in turn, attached directly to a cross-linked, polymerized vinyl backbone. The optional substituents on the imidazole ring include optionally substituted pyridyl, imidazolyl or amino groups which can be substantially known type. A method of preparation of such resins includes the provision of at least the imidazole ring on the vinyl monomer before polymerization thereof. The active groups may be added or modified after polymerization with a cross-linking agent.
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