Abstract: A bleach catalyst composition in the form of non-friable composite granules comprising:i) a manganese complex catalyst being one of three defined formulae herein;ii) a water-soluble binding agent, preferably selected from soap/fatty acid mixtures, polyethylene glycols of molecular weight in the range 500 to 3000, tallow and coco ethanolamides, nonionic surfactants and mixtures thereof; andiii) an inert solid selected from zeolites, silicas, clays, alumina, titanium dioxide and mixtures thereof; and each granule having a pH within the range from 4.5 to 8.5.The granular, manganese complex-based bleach catalyst composition may be incorporated in detergent and/or bleaching compositions, with good resulting stability and homogeneity of distribution.

Abstract: A bleaching particulate detergent composition of high bulk density (at least 700 g/l) comprises one or more detergent-active compounds, one or more detergency builders including a specific alkali metal aluminosilicate--maximum aluminium zeolite P (zeolite MAP--and a bleach system comprising a peroxy bleach compound and a bleach precursor. Use of zeolite MAP in place of conventional zeolite 4A in this high bulk density composition improves significantly the storage stability of the bleach precursor.

Abstract: Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported.The catalysts are manganese complexes of formula:[L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.qwherein Mn is manganese or iron or mixtures thereof, which can be in the II, III, IV or V oxidation state or mixtures thereof; n and m are independent integers from 1-4; X represents a co-ordination or bridging species; p is an integer from 0-12; Y is a counter-ion, the type of which is dependent upon the charge z of the complex which can be positive, zero or negative; q=z/[charge Y]; and L is a ligand being a macrocylic organic molecule.

Abstract: Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported.The catalysts are a manganese-based co-ordination complex of the general formula:[L.sub.n Mn.sub.m X.sub.p ].sup.z Y.sub.qwherein Mn is manganese in the IV-oxidation state; n and m are independent integers from 2-8; X represents a co-ordination or bridging species; p is an integer from 0-32; Y is a counter-ion, the type of which is dependent on the charge z of the complex which can be positive, zero or negative; q=z/[charge Y]; and L is a ligand which is an organic molecule containing a number of hetero-atoms selected from N, P, O, and S, which co-ordinates via all or some of its hetero-atoms and/or carbon atoms to the Mn.sup.(IV) -center(s), which latter are anti-ferromagnetically coupled.

Abstract: Concentrated detergent powder compositions having a bulk density of above 600 g/l, preferably at least 610 g/l, more preferably from 650 g/l to 1200 g/l, and comprising a surfactant, a detergency builder, enzymes, a peroxygen compound bleach, and a manganese complex as effective bleach catalyst are disclosed.Specifically preferred manganese complexes are:1) [Mn.sup.IV.sub.2 (.mu.--O).sub.3 (Me--TACN).sub.2 ](PF.sub.6).sub.2 and2) [Mn.sup.IV.sub.2(.mu.--O).sub.3 (MeMe--TACN).sub.2 ](PF.sub.6).sub.2Use of these catalysts can make the detergent powder more compact, i.e. reduce the pack volume, without loss of performance or even with a much better bleaching and washing powder.

Abstract: A stable and effective manganese complex for use as a peroxy compound bleach catalyst is disclosed, the catalyst being a water-soluble complex of manganese (II), (III), or (IV) or mixtures thereof with a ligand which is a non-carboxylate polyhydroxy compound having at least three consecutive C--OH groups in its molecular structure. Bleaching composition comprising a peroxy compound and the catalyst, as well as process for bleaching substrates using said catalyst are also disclosed. Preferred ligand is sorbitol and preferred catalyst is Mn-sorbitol complex.