A bleach and oxidation catalyst is provided comprising a catalytically active iron, manganese or copper complex including a specified pentadentate nitrogen-containing ligand. The metal complex can activate hydrogen peroxide or peroxyacids and provides favourable stain removal properties. In addition, a considerably improved stability of these metal complex compounds in alkaline aqueous environment has been obtained, in particular at the peroxy compound concentrations generally present in the fabric washing liquor.
申请公布号
EP1129170(A1)
申请公布日期
2001.09.05
申请号
EP19990955934
申请日期
1999.10.25
申请人
UNILEVER PLC;UNILEVER N.V.
发明人
DELROISSE, M. G. J.;FERINGA, B. L.;HAGE, RONALD;HERMANT, ROELANT M.;KALMEIJER, R. E.;KOEK, JEAN H.;LAMERS, CHRISTIAAN;RISPENS, MINZE;RUSSELL, STEPHEN W.;VAN VLIET, R. T. L.;WHITTAKER, JANE