Process for preparing detergent tablets having two or more regions

US6992056B1 · kind B1 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Juergen Haerer · Goldkronach, DE
• Thomas Gassenmeier · Goldkronach, DE
• Christian Nitsch · Dressendorf, DE
• Hans-Josef Beaujean · Dormagen, DE
• Bernd Richter · Dresden, DE
• Thomas Moeller · Goldkronach, DE

Key dates

• Filing date: Dec 21, 1998
• Grant date: Jan 31, 2006
• Expiry date: Dec 21, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0078
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing a detergent tablet having two or more regions comprises the steps of: (a) compressing a particulate composition comprising a detergent active component to form a compressed region of the tablet having a recess; (b) delivering to the recess a solution or melt comprising a mixture of at least one detergent active component and a fusible carrier material; and (c) solidifying the solution or melt.