O-substituted n,n-diacylhydroxylamine bleach activators and...

C - Chemistry – Metallurgy – 11 – D

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C11D 3/395 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2309592

N,N diacyl O-substituted imide bleach activators and compositions employing them are provided. The activators have general formula (I) wherein X is selected from O, NR16 and S; e is 0 or 1; f is 0 or 1; R16 is selected from H and C1-C4 linear or branched, saturated or unsaturated alkyl groups; and R1 is preferably phenyl or C7-C13 linear or branched chain, saturated or unsaturated alkyl; R2 is preferably C1-C10 branched or unbranched, saturated or unsaturated alkyl and R3 is preferably C1-C12 linear or branched chain, saturated or unsaturated alkyl. Bleach additive and bleaching compositions including the bleach activators and methods of cleaning fabrics are also provided.

L'invention porte sur des activateurs de blanchiment imide N,N diacyl O-substitué et sur des compositions les utilisant. Les activateurs de blanchiment ont la formule générale (I) dans laquelle X est sélectionné parmi O, NR?16¿ et S; e vaut 0 ou 1; f vaut 0 ou 1; R?16¿ est sélectionné parmi H et des groupes alkyle C¿1?-C¿4? saturés ou insaturés, linéaires ou ramifiés; et R?1¿ représente de préférence phényle ou un alkyle C¿7?-C¿13? saturé ou insaturé, à chaîne droite ou ramifiée; R?2¿ représente de préférence un alkyle C¿1?-C¿10? saturé ou insaturé, à chaîne droite ou ramifiée, et R?3¿ représente de préférence un alkyle C¿1?-C¿12? saturé ou saturé, à chaîne droite ou ramifiée. L'invention porte également sur des additifs de blanchiment et des compositions de blanchiment comprenant les activateurs de blanchiment, et sur des procédés de nettoyage de tissus.

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