Water-swellable, bead copolymer

US4070348A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Dieter Kraemer · Mainz, DE
• Klaus Lehmann · Roßdorf, DE
• Horst Pennewiss · Darmstadt, DE
• Hermann Plainer · Reinheim, DE
• Roland Schweder · Darmstadt, DE

Key dates

• Filing date: Jan 28, 1975
• Grant date: Jan 24, 1978
• Expiry date: Jan 28, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/91
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Water-swellable, cross-linked, bead copolymers of (A) an ethylenically unsaturated monomer having a carboxylic acid anhydride, glycidyl or succinimide group, (B) a comonomer having at least two radical-polymerizable carbon double bonds, and (C) a radical-polymerizable water-soluble comonomer are disclosed to be excellent carriers capable of bonding with biologically active substances such as enzymes, enzyme substrates, inhibitors, hormones, antibiotics, antigens, and peptides.