Preparation of alkylated N- or amino, ammonium or spirobicyclic ammonium group-containing, crosslinked polymers

US7105631B2 · kind B2 · utility

Assignee

• DSM Fine Chemicals Austria NFG GmbH & Co KG · AT

Inventors

• Michael Stanek · San Clemente, US
• Marion Wagner · Katsdorf, AT
• Gerhard Schoppel · Wels, AT
• Georg Haeubl · Linz, AT
• Ernst Wressnegger · Linz, AT
• Walter Raml · Linz, AT

Key dates

• Filing date: Sep 2, 2003
• Grant date: Sep 12, 2006
• Expiry date: Jun 12, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/44
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for the preparation of alkylated N- or amino, ammonium or spirobicyclic ammonium group-containing, crosslinked polymer gels, which is characterized in that