Bleach
AssigneeAgfa NV
InventorsNorman Klaunzer, Ralf Wichmann, Gustav Tappe, Eltjo Boelema
Life of this patent
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Abstract
A bleach prepared from an iron (III) complex of a complexing agent of the formula I ##STR1## in which L.sub.1, L.sub.2 mean an optionally substituted alkylene group with 1 to 4 C atoms L.sub.3 means an alkylene group with 1 to 4 C atoms, Z.sub.1, Z.sub.2 mean OH, NH.sub.2, NHR.sub.2, X means N, P.dbd.0, SO.sub.2 H Y.sub.1 means OH, NH.sub.2, NHR.sub.3, NR.sub.3 R.sub.4, SO.sub.3 H, PO.sub.3 H.sub.2, NHCOR.sub.5, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 mean optionally substituted alkyl or optionally substituted phenyl exhibits excellent bleaching action.
Claims4
Bleach prepared from an iron (III) complex of a complexing agent of the formula 1 ##STR21## wherein m and n are the same or different and are a number from 1 to 4,
- Y.sub.2 is OH or NH.sub.2 and
- R.sub.6 is an unsubstituted CH.sub.3 group or a CH.sub.3 group substituted by hydroxy, phenyl or C.sub.1 -C.sub.4 -alkoxy.
Dependencies are inferred from the claim text.