Dishwasher detergents comprising a specific polymer mixture

US7462588B2 · kind B2 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

• Rolf Bayersdoerfer · Hamburg, DE
• Arnd Kessler · Monheim am Rhein, DE
• Silke Menke · Haan, DE

Key dates

• Filing date: Mar 10, 2006
• Grant date: Dec 9, 2008
• Expiry date: Mar 10, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3784
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to detergents and rinse agents for machine dishwashing and to supply forms which combine detergent and rinse agent containing certain polymers in a single product comprising at least one polymer with cationic monomer units and at least one anionic polymer modified with phosphorus- and/or sulfur-containing groups, characterized in that the pH value of a 1% by weight solution of the anionic polymer in distilled water at 20° C. is less than pH 6.