Bleaching-active metal complexes
US6139769A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1998 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Apr 2, 2018 |
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: EQU [L.sub.n M.sub.m X.sub.p ].sup.z Y.sub.q (1) in which PA0 M is manganese in oxidation stage II, III, IV, V and/or VI or cobalt in oxidation stage II and/or III, PA0 X is a coordination group or bridging group, PA0 Y is a counterion in the corresponding stoichiometric amount to balance a charge z present, where PA0 z as the metal complex charge, can be positive, zero or negative, PA0 n and m, independently of one another, are integers of from 1 to 4, PA0 p is an integer from 0 to 15, PA0 q is z/charge of Y PA0 L is a ligand of the formula (2) ##STR1## in which substituents R.sup.1 to R.sup.8 are as defined in the description.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.