Dishwashing agent

US5066415A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Franz-Josef Dany · Lechenich, DE
• Hannsjorg Ulrich · Lechenich, DE
• Lothar Westermann · Cologne, DE

Key dates

• Filing date: Aug 24, 1990
• Grant date: Nov 19, 1991
• Expiry date: Aug 24, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/361
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A dishwashing agent consists of a crystalline, largely water-insoluble sodium layer silicate having a molar ratio of SiO.sub.2 /Na.sub.2 O of (1.9 to 3.5):1 in combination with a proton donor, a 0.5% strength by weight aqueous solution of the dishwashing agent having a pH of less than 10. The dishwashing agent can furthermore contain a surfactant, an active chlorine or active oxygen carrier, a dispersing agent, an alkali metal phosphate or an alkali metal polyphosphate and a filler.