Bleach compositions comprising cobalt catalysts

Details Bleach compositions comprising cobalt catalysts Bleach compositions comprising cobalt catalysts

C - Chemistry, Metallurgy

11

D

C11D 7/54 (2006.01) C11D 3/16 (2006.01) C11D 3/39 (2006.01) D06L 3/02 (2006.01)

Patent

CA 2224559

Bleach compositions comprising certain carboxylate-containing cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents and laundry compositions which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt catalysts having the formula: [Co(NH3)5M]Ty, wherein cobalt is in the +3 oxidation state; and M is a substituted and unsubstituted C1-C30 carboxylate-containing ligand having the formula: RC(O)O-.

L'invention concerne des compositions d'agents de blanchiment comprenant certains catalyseurs au cobalt contenant du carboxylate. De manière plus spécifique, l'invention concerne des détergents pour lave-vaisselle automatiques et des compositions pour lessives qui présentent des avantages renforcés de nettoyage/blanchiment (en particulier la suppression de taches de thé) grâce au choix de catalyseurs au cobalt de formule: [Co(NH¿3?)¿5?M]T¿y? dans laquelle le cobalt à l'état d'oxydation +3; et M représente un ligant substitué et non substitué contenant du carboxylate C¿1?-C¿30? et qui a la formule chimique RC(O)O-.

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