Thiadiazole dioxides and their derivatives as bleach catalysts

Details Thiadiazole dioxides and their derivatives as bleach catalysts Thiadiazole dioxides and their derivatives as bleach catalysts

C - Chemistry, Metallurgy

11

D

C11D 3/39 (2006.01) C07D 285/10 (2006.01) C07D 285/14 (2006.01) C07D 285/16 (2006.01) C07D 285/36 (2006.01) C07D 417/14 (2006.01) C07D 513/04 (2006.01) C11D 3/395 (2006.01)

Patent

CA 2273975

Novel bleaching compositions comprising a peroxygen compound and an oxygen transfer agent of the structure: R1R2C=N-SO2-N=CR3R4. Substrates such as fabrics may be bleached in an aqueous solution containing the oxygen transfer compound and a peroxygen compound.

L'invention concerne de nouvelles compositions de blanchiment. Ces compositions comprennent un composé péroxyde et un agent de transfert d'oxygène présentant la structure R?1¿R?2¿C=N-SO2-N=CR?3¿R?4¿. Des substrats, comme des tissus par exemple, peuvent être blanchis dans une solution aqueuse contenant l'agent de transfert d'oxygène et un composé péroxyde.

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