Use of protease in liquid to gel-form detergents

US6228827A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Josef Penninger · Hilden, DE
• Matthias Sunder · Goldkronach, DE
• Theodor Voelkel · Goldkronach, DE
• Beatrix Kottwitz · Erkrath, DE
• Werner Pichler · Kundl, AT

Key dates

• Filing date: Dec 14, 1999
• Grant date: May 8, 2001
• Expiry date: Dec 14, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/38618
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the use of mutated protease of the subtilisin type which carries at least one mutation in its amino acid sequence, leading to a reduced positive charge or an increased negative charge in the substrate binding region of the molecule, in liquid to gel-form laundry detergents. This protease shows increased stability above all in detergents such as these.