Machine dishwashing detergent

US6539954B1 · kind B1 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Gunther Schimmel · Lechenich, DE
• Lothar Westermann · Cologne, DE
• Harald Bauer · Ehningen, DE

Key dates

• Filing date: Nov 24, 1999
• Grant date: Apr 1, 2003
• Expiry date: Nov 24, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/755
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a liquid to paste machine dishwashing detergent which, in addition to customary machine dishwashing detergent ingredients, comprises a crystalline, layered silicate of the formulaaA2O.bBO.cC2O3.dD2O5.eSiO2.fH2O,in which A is an alkali metal and/or hydrogen, B is an alkaline earth metal, C is an element from the third main group of the Periodic Table, and D is an element from the fifth main group of the Periodic Table, and the following also apply: 0≦a≦1; 0≦b≦0.5; 0≦c/e≦0.05; 0≦d/e≦0.25; 1.9≦e≦4; 0≦f≦20.The invention also relates to a process for the preparation of this machine dishwashing detergent and to its use.