Patent ID: 6139769
Filing Date: 2000-10-31
Classification: C11D,D06L,D21C

Abstract:
A process for laundering or cleaning comprising contacting a substrate with an aqueous solution comprising a peroxide compound and a bleach catalyst of the formula 1[L.sub.n M.sub.m X.sub.p ].sup.z Y.sub.q ( 1)in whichM is manganese in oxidation stage II, III, IV, V and/or VI or cobalt in oxidation stage II and/or III,X is a coordination group or bridging group,Y is a counterion in the corresponding stoichiometric amount to balance a charge z present, wherez as the metal complex charge, can be positive, zero or negative,n and m, independently of one another, are integers of from 1 to 4,p is an integer from 0 to 15,q is z/charge of YL is a ligand of the formula (2) ##STR3## in which R.sup.1, R.sup.2 independently of one another are hydrogen, C.sub.1 - to C.sub.10 -alkyl, cycloalkyl or aryl,R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, independently of one another, are hydrogen, C.sub.1 - to C.sub.30 -alkyl, cycloalkyl or aryl, C.sub.1 - to C.sub.4 -alkoxy groups, substituted or unsubstituted amino or ammonium groups, halogen atoms, sulfo groups, carboxyl groups, or groups of the formulae --(CH.sub.2).sub.r --COOH, --(CH.sub.2).sub.r --SO.sub.3 H, --(CH.sub.2).sub.r --PO.sub.3 H.sub.2, --(CH.sub.2).sub.i --OH, in which r is an integer from 0 to 4 and i is an integer from 1 to 4, and the specified acid groups may also be in salt form, with the exception of compounds of the formula 1 in which M=Mn, x=H.sub.2 O, z=zero and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are hydrogen.