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Kato; Hidefumi
Kurume, JP
No. of patents:

Patent Number Title Of Patent Date Issued
4174428 Heavy metal ion adsorbents November 13, 1979
A heavy metal ion adsorbent represented by the following general formula: ##STR1##wherein l, m, and n are 2 or 3, respectively; R is an alkyl group containing 4 to 6 carbon atoms which is substituted by an amino group in the .omega.-position; and A is hydrogen or a synthetic resin.
4168265 Alkyl substituted cyclams September 18, 1979
Alkyl cyclam resulting from substitution of one or more hydrogens of the cyclam represented by the formula ##STR1## by alkyl groups containing at least 8 carbon atoms. The alkyl cyclam can be used for capturing metal ions.

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