Concentrated detergent powder compositions
Bleach activation multinuclear manganese-based coordination complexes
Machine dishwashing composition containing peroxygen bleach, manganese complex and enzymes
Bleach activation Patent #: 5314635
ApplicationNo. 214925 filed on 03/17/1994
US Classes:510/311, With heavy metal containing catalyst or activator (e.g., containing Mn, Cu, Fe, etc.)8/111, Peroxides or oxygen252/186.27, Inorganic peroxide252/186.31, With organic material252/397, Anti-oxidants or chemical change inhibitants252/400.53, Nickel, iron, cobalt, copper, manganese, mercury, or cadmium containing510/315, With aluminosilicate component (e.g., synthetic zeolite, etc.)510/349, Coated, encapsulated, or impregnated particle component in a physically heterogeneous composition (e.g., coated or encapsulated particles mixed with powder, granules, etc.)510/376, With heavy metal, nitrogen, or oxygen containing activator, catalyst, or precursor510/500Heterocyclic nitrogen (except triazines)
ExaminersPrimary: Albrecht, Dennis L.
Attorney, Agent or Firm
Foreign Patent References
International ClassesC09K 015/02
Foreign Application Priority Data1993-03-18 GB
AbstractA particulate bleaching detergent composition, preferably having a bulk density of at least 700 g/l, comprises an organic surfactant system, a zeolite builder and a bleach system. The bleach system includes a peroxy bleach compound, and a transitional metal catalyst which comprises a source of Mn and/or Fe ions and a defined macrocyclic organic ligand. The zeolite is zeolite P having a silicon to aluminum ratio not exceeding 1.33 (zeolite MAP). The compositions show improved stability of the bleach catalyst against discoloration on storage, as compared with similar compositions containing conventional zeolite A.