Metal ligand containing bleaching compositions

摘要: The invention provides a novel composition for bleaching cellulose based materials, such as wood pulp and paper which includes using an effective amount of source oxidant oxidatively stable bleach activator having structure (I) wherein Y1, Y3 Y4 each represents bridging group zero, one, two or three carbon containing nodes substitution, Y2 is at least one node substitution. Each contains C(R), C(R1)(R2), C(R)2 unit. R may be H, alkyl, cycloalkyl, cylcoalkenyl, alkenyl, aryl, alkynyl, alkylaryl, halogen, alkoxy, phenoxy, CH2CF3, CF3 combinations thereof, form substituted unsubstituted benzene ring, together with paired substituent bound to the same atom cycloalkyl cycloalkenyl ring; M transition metal; Q any counterion; L labile ligand.