Global Patent Index - EP 0845524 A2

EP 0845524 A2 19980603 - Improved bleaching performance using tungstates and molybdates

Title (en)

Improved bleaching performance using tungstates and molybdates

Title (de)

Verwendung von Wolframaten und Molybdaten zur Verstärkung der Bleichwirkung

Title (fr)

Utilisation de tungstates et de molybdates pour améliorer les performances de blanchiment

Publication

EP 0845524 A2 19980603 (DE)

Application

EP 97120141 A 19971118

Priority

DE 19649078 A 19961127

Abstract (en)

Activators for (preferably inorganic) peroxy compounds in aqueous detergent solutions for hard surfaces, especially crockery, comprise alkali or ammonium tungstate and/or molybdate compounds. Also claimed are (i) the use of these compounds in detergent solutions for cleaning hard surfaces, especially crockery, for bleaching coloured stains, (ii) a cleaning method for hard surfaces, especially crockery, using these aqueous detergent solutions which may also contain other cleaning agents, (iii) detergents for cleaning hard surfaces, containing combinations of these compounds with polycarboxylates and/or enzymes and (iv) the same detergents for cleaning crockery, especially for use in dishwashers.

Abstract (de)

Die Oxidations- und Bleichwirkung anorganischer Persauerstoffverbindungen bei niedrigen Temperaturen, insbesondere bei der Reinigung harter Oberflächen, sollte verbessert werden. Dies gelang im wesentlichen durch den Einsatz von Wolframat und/oder Molybdat. Mittel zur insbesondere maschinellen Reinigung von Geschirr enthalten etwa 0,01 Gew.-% bis 5 Gew.-% eines derartigen bleichverstärkenden Wirkstoffs in Kombination mit Polycarboxylaten und/oder Enzymen.

IPC 1-7

C11D 3/39; C11D 3/04; C11D 7/54; C11D 7/04

IPC 8 full level

C11D 3/39 (2006.01)

CPC (source: EP)

C11D 3/3932 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR IT LI NL

DOCDB simple family (publication)

DE 19649078 A1 19980528; EP 0845524 A2 19980603; EP 0845524 A3 19990310

DOCDB simple family (application)

DE 19649078 A 19961127; EP 97120141 A 19971118