Enzymes bound to polyurethane

US4342834A · kind A · utility

Assignee

• W. R. Grace & Co. · US

Inventors

• Louis L. Wood · Rockville, US
• Frank J. Hartdegen · Columbia, US
• Peter Hahn · Bensberg, DE

Key dates

• Filing date: May 11, 1976
• Grant date: Aug 3, 1982
• Expiry date: May 11, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2375/08
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

To chemically bind either impure or purified enzymes to polyurethane to produce insolubilized bound enzymes which are still enzymically active and which may be more stable than the original enzyme, and which can be reused without appreciable activity loss and whose physical characteristics can be varied depending on the application for which they are intended.