Patent ID: 6165963
Filing Date: 2000-12-26
Classification: C11D

Abstract:
A detergent bleaching composition comprising: a peroxy bleaching compound;a surface-active material; anda compound of the general formula (A):[{M'.sub.a L}.sub.b X.sub.c ].sup.z Y.sub.q (A)in whichM' represents hydrogen or a metal selected from the group consisting of Ti, V, Co, Zn, Mg, Ca, Sr, Ba, Na, K, and Li;X represents a coordinating species;a represents zero or an integer in the range from 0 to 5;b represents an integer in the range from 1 to 4;c represents zero or an integer in the range from 0 to 4;z represents the charge of the compound and is an integer which can be positive, zero or negative;Y represents a counter ion, the type of which is dependent on the charge of the compound;q=z/[charge Y];L represents a pentadentate ligand of general formula (B):R.sup.1 R.sup.1 N--W--NR.sup.1 R.sup.2 (B)whereineach R.sup.1 independently represents --R.sup.3 --V, in which R.sup.3 represents an optionally substituted group selected from the group consisting of alkylene, alkenylene, oxyalkylene, aminoalkylene or alkylene ether, and V represents an optionally substituted heteroaryl group selected from the group consisting of pyridinyl, pyrazinyl, pyrazolyl, imidazolyl, benzimidazolyl, pyrimidinyl, triazolyl and thiazolyl;W represents an optionally substituted alkylene bridging group selected from the group consisting of --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, and --CH.sub.2 --C.sub.6 H.sub.4 --CH.sub.2 --;R.sub.2 represents an alkyl or aryl group optionally substituted with a substituent selected from the group consisting of hydroxy, alkoxy, carboxylate, carboxamide, carboxylic ester, sulphonate, amine, alkylamine and N.sup.+ (R.sup.4).sub.3, wherein R.sup.4 is selected from the group consisting of hydrogen, alkanyl, alkenyl, arylalkanyl, arylalkenyl, oxyalkanyl, oxyalkenyl, aminoalkanyl, aminoalkenyl, alkanyl ether and alkenyl ether.