Process for preparing weakly-basic anion exchangers and reagents suitable for this purpose

US5464875A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reinhold Klipper · Neunburg vorm Wald, DE
• Stefan Antons · Leverkusen, DE
• Guido Steffan · Odenthal, DE
• Alfred Mitschker · Odenthal, DE
• Werner Struver · Leverkusen, DE
• Holger Lutjens · Cologne, DE

Key dates

• Filing date: Aug 12, 1994
• Grant date: Nov 7, 1995
• Expiry date: Aug 12, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2810/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An improved aminomethylation process gives weakly-basic anion exchangers in an elegant way, with by-product obtained being able to be processed into a suitable starting material without problems.