Bleach activation

Details Bleach activation Bleach activation

C - Chemistry, Metallurgy

11

D

134/5.3

C11D 3/395 (2006.01) C11D 3/39 (2006.01) C11D 7/54 (2006.01) D06L 3/02 (2006.01)

Patent

CA 2036233

A stable and effective manganese complex for use as a peroxy compound bleach catalyst is disclosed, said catalyst being a water-soluble complex of manganese (II), (III), or (IV) or mixtures thereof with a ligand which is a non-carboxylate polyhydroxy compound having at least three consecutive C-OH groups in its molecular structure. Bleaching composition comprising a peroxy compound and said catalyst, as well as process for bleaching substrates using said catalyst are also disclosed. Preferred ligand is sorbitol and preferred catalyst is Mn-sorbitol complex.

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