Modified polyurethane foam that is used as an adsorbent

(57) Abstract: The present invention, (i) ethylenimine, polyethylenimine, polyvinylamine, polyvinylamine - copolymers, carboxymethylated polyethylenimines, phosphonomethylated polyethyleneimines, quaternized polyethyleneimines and / or dithiocarbamate polyethylene about imine or (ii) an alkali metal hydroxide and / or alkaline earth metal hydroxide or (i) and polyurethane foam containing a mixture of (ii).