Enzyme preparation containing a silver corrosion inhibitor

US5783545A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Kathleen Paatz · Goldkronach, DE
• Wilfried Raehse · Goldkronach, DE
• Juergen Haerer · Goldkronach, DE
• Werner Pichler · Kundl, AT
• Birgit Burg · Alpen, DE

Key dates

• Filing date: Jul 24, 1996
• Grant date: Jul 21, 1998
• Expiry date: Jul 24, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23F11/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention provides an enzyme containing granule with a coating containing a silver corrosion inhibitor. The particle is formed from a core containing a first enzyme and an organic or inorganic carrier which can be coated with a second particulate enzyme. The core is coated with a coating containing at least one salt of manganese, titanium, zirconium, hafnium, vanadium, cobalt and cerium. A method for preparing the granule is also disclosed.