Global Patent Index - EP 0723006 A3

EP 0723006 A3 19980701 - Cleaning methods and products providing compatibilized staged release of bleach followed by enzymes

Title (en)

Cleaning methods and products providing compatibilized staged release of bleach followed by enzymes

Title (de)

Reinigungsverfahren und -produkte, die eine aufeinander abgestimmte, stufenweise Freisetzung eines Bleichmittels, gefolgt von Enzymen, bewirken

Title (fr)

Méthodes de nettoyage et produits permettant une libération compatible par étape du produit de blanchiment et des enzymes

Publication

EP 0723006 A3 19980701 (EN)

Application

EP 95203545 A 19951219

Priority

US 37660495 A 19950123

Abstract (en)

[origin: EP0723006A2] Improved detergent compositions, especially granular automatic dishwashing detergents, comprising detersive enzymes (such as proteases and/or amylases), and bleaches (such as hypochlorite or sodium dichloroisocyanurate) capable of deactivating the enzymes. Also, methods for achieving improved performance from combinations of these ingredients via an improved delivery sequence and profile, specifically involving release of bleach prior to enzyme, are provided. Preferred compositions comprise bleach scavengers (such as ammonium sulfate) and enzyme dissolution-delaying polymers (such as film-forming polyesters) employed in compositions which allow destruction of the bleach or its conversion to an enzyme-compatible form prior to dispersal of enzyme in the wash.

IPC 1-7

C11D 3/39; C11D 3/386

IPC 8 full level

C11D 3/00 (2006.01); C11D 3/386 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01)

CPC (source: EP)

C11D 3/0042 (2013.01); C11D 3/0084 (2013.01); C11D 3/38672 (2013.01); C11D 3/3942 (2013.01); C11D 3/3955 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

DOCDB simple family (publication)

EP 0723006 A2 19960724; EP 0723006 A3 19980701

DOCDB simple family (application)

EP 95203545 A 19951219