Dishwasher detergent with improved protection against glass corrosion

US7153816B2 · kind B2 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

• Arnd Kessler · Monheim am Rhein, DE
• Rainer Sorg · Kempen, DE
• Melanie Baumann · Duisburg, DE
• Wolfgang Wick · Waiblingen, DE

Key dates

• Filing date: Feb 17, 2004
• Grant date: Dec 26, 2006
• Expiry date: Feb 17, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D7/3245
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A dishwasher detergent containing a builder and one or more magnesium and/or zinc salt(s) of at least one monomeric and/or polymeric organic acid, excluding zinc ricinoleate, zinc abietate, and zinc oxalate. A method of inhibiting glass corrosion by treatment with one or more salts of magnesium and/or zinc with organic acids, excluding formic acid, acetic acid, gluconic acid, and oxalic acid.