Removing stubborn mildew stain

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 3/00 (2006.01) C11D 1/04 (2006.01) C11D 1/22 (2006.01) C11D 1/75 (2006.01) C11D 3/02 (2006.01) C11D 3/395 (2006.01) C11D 3/48 (2006.01) C11D 7/18 (2006.01) C11D 7/54 (2006.01) C11D 9/42 (2006.01) C11D 11/00 (2006.01) C11D 17/00 (2006.01)

Patent

CA 2480893

An aqueous cleaning composition fluid foam containing an alkali metal hypochlorite has a particular combination of precursor solution relative viscosity, foam syneresis value, foam horizontal thickness half-life and foam vertical wall clingability, and compared to known hypochlorite-containing cleaning compositions, provides superior cleaning of stubborn mildew without scrubbing. The cleaning composition fluid foam is produced by vigorous agitation of an aqueous hypochlorite solution containing an alkaline builder and a surfactant in the presence of a gas, or by injection of a pressurized propellant into an aerosol dispenser containing such solution and then passing the solution/propellant mix through a mechanical break-up actuator in the valve assembly of the aerosol dispenser.

L'invention concerne une mousse fluide de composition aqueuse de nettoyage contenant un hypochlorite de métal alcalin possédant une combinaison particulière de viscosité relative de solution de précurseur, de valeur de synérèse de la mousse, de demi-vie d'épaisseur horizontale de la mousse et de propriété d'adhérence de la mousse sur une paroi verticale, et qui, comparée à de compositions connues de nettoyage contenant un hypochlorite, permet d'obtenir un nettoyage supérieur de moisissure tenace sans lavage. Cette mousse fluide de composition de nettoyage est produite par agitation vigoureuse d'une solution aqueuse d'hypochlorite contenant un adjuvant alcalin et un tensioactif en présence d'un gaz, ou par injection d'un gaz propulseur sous pression dans un diffuseur d'aérosol contenant une telle solution, puis par passage du mélange solution/gaz propulseur dans un dispositif de scission mécanique disposé dans l'assemblage de valve du diffuseur d'aérosol.

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