Liquid enzyme formulations

US5558812A · kind A · utility

Assignee

• Solvay Enzymes GmbH & Co. KG · DE

Inventors

• Wilfried Hahn · Nienburg, DE
• Hubert Herrman · Nienburg, DE
• Torsten W. Kiesser · Nienburg, DE
• Vera Sander · Garbsen, DE

Key dates

• Filing date: Jun 9, 1994
• Grant date: Sep 24, 1996
• Expiry date: Jun 9, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/38663
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Liquid enzyme formulations which contain the enzyme in the form of aqueous enzyme particle suspension, colloidal fillers and a liquid alkylene oxide polymer based on ethylenediamine and having a molecular weight in the range from 500 to 8200. The liquid enzyme formulations of the invention may contain any enzyme customarily incorporated in detergents or used for cleaning purposes, especially alkaline proteases. Processes for preparing such liquid enzyme formulations and for using them in liquid detergents and/or cleaners are also disclosed.