Dishwasher product in tablet form

US6194368A · kind A · utility

Assignee

• Joh A. Benckiser, GmbH · DE

Inventors

• Guido Waschenbach · Uetersen, DE
• Paul Robinson · Bainbridge Island, US
• Brigitte Sandmann · Heidelberg, DE
• Harald Magg · Ladenburg, DE
• Wilfried Hoflinger · Schriesheim, DE

Key dates

• Filing date: Apr 10, 1998
• Grant date: Feb 27, 2001
• Expiry date: Apr 10, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0078
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a dishwasher detergent in the form of a multi-layer tablet comprising a bleach, a bleach activator, a silver/copper corrosion inhibitor and also other customary constituents, where the silver/copper corrosion inhibitor is not present together with the bleach and the bleach activator in one layer.