Bleaching-active metal complexes
US6602441B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Dec 22, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/163
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the following formula are suitable as activators for peroxy compounds in laundry detergents and cleaning products:[LnMmXp]zYq  (1)in whichM is manganese in oxidation stage II, III, IV, V and/or VI or cobalt in oxidation stage II and/or III,X is a coordination group or bridging group,Y is a counterion in the corresponding stoichiometric amount to balance a charge z present, wherez as the metal complex charge, can be positive, zero or negative,n and m, independently of one another, are integers of from 1 to 4,p is an integer from 0 to 15,q is z/charge of YL is a ligand of the formula (2) in which substituents R1 to R8 are as defined in the description.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.