Process for preparing monodisperse, crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds

US6329435A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reinhold Klipper · Neunburg vorm Wald, DE
• Werner Struver · Leverkusen, DE
• Ulrich Schnegg · Leverkusen, DE
• Heiko Hoffmann · Simi Valley, US
• Dieter Mauer · Lollar, DE
• Bernhard Lehmann · Appenweier, DE
• Bruno Hees · Langenfeld, DE
• Holger Lutjens · Cologne, DE

Key dates

• Filing date: Aug 21, 2000
• Grant date: Dec 11, 2001
• Expiry date: Aug 21, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2220/58
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing novel, monodisperse crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds, in particular heavy metal compounds or noble metal compounds.