Peroxyacids

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 409/40 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2292894

There is provided a cationic organic diperoxyacid having general formula (I) wherein: R1 and R2 are each independently an optionally substituted, linear or branched, C3-C10 alkyl or alkenyl group, or an optionally substituted aryl group; R3 and R4 are each independently a linear or branched C1-C4 alkyl group; p is 0 or 1; z is an integer selected from 0-3; y is an integer selected from 0-5; w is 0 or 1; and X- is a counter anion. The peroxyacid has been found to have good bleaching performance, including in conditions of alkaline pH.

L'invention a trait à un diperoxyacide organique cationique de la formule générale (I) dans laquelle R¿1? et R¿2? représentent chacun indépendamment un groupe alcényle ou alkyle C¿3?-C¿10? éventuellement substitué, linéaire ou ramifié, ou bien un groupe aryle éventuellement substitué; R¿3? et R¿4? représentent chacun indépendamment un groupe alkyle C¿1?-C¿4? linéaire ou ramifié; p représente 0 ou 1; z représente un entier situé entre 0 et 3; y représente un entier situé entre 0 et 5; w représente 0 ou 1; et X?-¿ représente un contre-anion. Il a été prouvé que le peroxyacide présente de bonnes propriétés de blanchiment, notamment dans des conditions de pH alcalin.

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