Automatic dishwashing agent

US8268768B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Dorota Sendor-Müller · Mülheim an der Ruhr, DE
• Johannes Zipfel · Amsterdam, NL
• Arnd Kessler · Monheim am Rhein, DE
• Christian Nitsch · Dressendorf, DE
• Sven Müller · Duisburg, DE

Key dates

• Filing date: Jun 15, 2011
• Grant date: Sep 18, 2012
• Expiry date: Jun 15, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/33
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a phosphate- and bleach-free automatic dishwashing agent containing: a) 5 to 60 wt % citrate, b) (hydrogen) carbonate, c) 2 to 40 wt % ethylenediamine disuccinic acid, wherein the weight ratio of the components b) and c) is between 1:5 and 10:1, and wherein said automatic dishwashing agent is characterized by good cleaning performance, particularly improved cleaning of tea.