C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/40 (2006.01) C11D 1/66 (2006.01) C11D 3/20 (2006.01) C11D 3/33 (2006.01) C11D 3/34 (2006.01) C11D 3/36 (2006.01) C11D 3/37 (2006.01)
Patent
CA 2358871
A method for improving stability of a dye used in a colored aqueous acidic rinse aid composition to ambient and ultra-violet light radiation is disclosed. The method includes the step of adding a chelant to an acidic rinse aid composition. The chelant is present in an amount of at least 1 ppm by weight of the rinse aid composition.
Procédé servant à améliorer la stabilité d'un colorant utilisé dans une composition d'adjuvant de rinçage acide aqueux et coloré par rapport au rayonnement de la lumière ambiante et ultraviolette. Ce procédé consiste à ajouter un agent séquestrant à la composition d'adjuvant de rinçage acide. Cet agent séquestrant est présent en quantité d'au moins 1 ppm en poids de ladite composition.
Foley Peter Robert
Pieroni Lucio
Song Brian X.
Dimock Stratton Llp
The Procter & Gamble Company
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