Amorphous alkali metal silicate compound

US6034050A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Rene-Andres Artiga Gonzalez · Goldkronach, DE
• Volker Bauer · Neuberg, DE
• Katrin Burmeister · Poing, DE
• Stefan Hammelstein · Dressendorf, DE

Key dates

• Filing date: Jan 12, 1998
• Grant date: Mar 7, 2000
• Expiry date: Jan 12, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/065
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for producing an anionic surfactant-containing alkali metal silicate-alkali metal carbonate compound providing multiple wash cycle performance, wherein the compound contains 15% to 50% by weight of alkali metal silicate which is x-ray amorphous and has a molar M.sub.2 O to SiO.sub.2 ratio of 1:1.5 to 1:3.3 and M represents an alkali metal, 30% to 70% by weight of alkali metal carbonate, 1.5% to 15% by weight of anionic surfactant and 12% to 19% by weight of water, by providing a powder component selected from alkali metal carbonate, alkali metal silicate, or a mixture of alkali metal carbonate and alkali metal silicate, and agglomerating the powder component with an aqueous composition containing one or more anionic surfactants.