Agglomerated antimicrobial detergent additive comprising swellable layered silicate and surfactant

US6365563B1 · kind B1 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Rüdiger Hirsch · Stolberg, DE
• Werner Hölzl · Eschentzwiller, FR
• Marcel Schnyder · Wyhlen, DE
• Rainer Hans Traber · Reinach, CH

Key dates

• Filing date: Sep 15, 1998
• Grant date: Apr 2, 2002
• Expiry date: Sep 15, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/24
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A detergent additive is described, which comprises at least one swellable layered silicate, an antimicrobial active substance and a surfactant and, optionally, an alkali salt. This detergent additive is distinguished in that it protects the antimicrobial active substance from oxidation by the bleaches which are usually present in detergents and in that said active substance is only released during the washing process.