Hydroxyl group-containing covalently bound polymer separating materials and processes for their preparation

US6136925A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Egbert Muller · Langen (Hessen), DE
• Margot Mack · Fürth, DE
• Lothar Britsch · Meßkirch, DE

Key dates

• Filing date: Jul 22, 1997
• Grant date: Oct 24, 2000
• Expiry date: Jul 22, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2220/54
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to separating materials based on supports containing hydroxyl groups, whose surface [sic] are coated with covalently bound polymers, and to processes for their preparation. The separating materials are characterized in that the polymers consist of identical recurring units of the formula I EQU .brket open-st.CH.sub.2 --CHX.brket close-st..sub.n (I) in which PA1 X is CO--NH--CH.sub.2 --CH.sub.2 --SO.sub.3 H and PA1 n is 2-100.