Particulate bleaching detergent compositions containing zeolite map and a stable bleach catalyst
Patent 5409627 Issued on April 25, 1995. Estimated Expiration Date: 
March 17, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 17, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesConcentrated detergent powder compositions Detergent compositions Bleach activation multinuclear manganese-based coordination complexes Machine dishwashing composition containing peroxygen bleach, manganese complex and enzymes Detergent compositions Detergent compositions Bleach activation Patent #: 5314635 InventorsAssigneeApplicationNo. 214925 filed on 03/17/1994US 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 FirmForeign Patent References
International ClassesC09K 015/02C11D 003/12 C11D 003/395 D06L 003/02 Foreign Application Priority Data1993-03-18 GBAbstractA 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. | |
