US Patent 6855739 Modified polyurethane foamed materials used as adsorbents
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Patent abstract
The invention relates to polyurethane foams comprising(i) ethylenimine, polyethylenimine, polyvinylamine, polyvinylamine copolymers, carboxymethylated polyethylenimines, phosphonomethylated polyethylenimines, quarternized polyethylenimines and/or dithiocarbamatized polyethylenimines or(ii) alkali hydroxides and/or alkaline earth metal hydroxides ora mixture consisting of both (i) and (ii).
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Patent Inventor Names
Andreas Arlt0
Armin Becker0
Bernd Bruchmann0
Jürgen Decker0
Martin Kreyenschmidt0
Rainer Rahm0
Ulrich Steuerle0
Ulrich Treuling0
Werner Bertleff0
Willi Riegel0
Date of Patent
February 15, 2005
0Patent Application Number
101688640
Date Filed
January 25, 2001
0Patent Primary Examiner
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US Patent 6855739 Modified polyurethane foamed materials used as adsorbents
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