Separating materials

US5439979A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Margot Mack · Fürth, DE
• Joachim Kinkel · Guldental, DE

Key dates

• Filing date: Feb 22, 1991
• Grant date: Aug 8, 1995
• Expiry date: Feb 22, 2011

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 for thin-layer chromatography, based on sorbent-coated supports, the sorbent essentially comprising optically active poly(meth)acrylamides bonded to silica gel, and a binder system comprising a mixture of carboxyl-containing polyvinyl and acrylate polymers.