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Production of functionalized polyurethane foams, e.g. used as adsorbent, comprises preparing foam incorporating bifunctional reagent and reacting active compound with reagent
Production of functionalized polyurethane foams, e.g. used as adsorbent, comprises preparing foam incorporating bifunctional reagent and reacting active compound with reagent
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机译:生产官能化聚氨酯泡沫,例如用作吸附剂,包括制备掺入双功能试剂的泡沫并使活性化合物与试剂反应
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摘要
Production of functionalized polyurethane foams comprises: (a) reacting an isocyanate with a compound having at least two isocyanate-reactive hydrogen atoms and a compound (I) having at least one hydroxy, amino and/or thiol group and at least one group R selected from halogen, carbonyl, ester, anhydride, epoxy, carboxy and sulfone groups; and (b) applying an R-reactive compound (II) to the resulting polyurethane foam so that (II) is covalently bound to (I) through R. An independent claim is also included for polyurethane foams produced by the above method.
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