Bleach activation
US5114611A · kind A · utility
137Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1990 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Apr 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3932
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Peroxy compound bleaching is activated by a catalytic amount of a transition metal complex of a transition metal (Mn, Co, Fe or Cu) with a non-(macro)-cyclic ligand of the formula: ##STR1## preferably 2,2'-bispyridylamine. Bleaching agent and bleach detergent compositions are also disclosed comprising a peroxy compound bleach and said transition metal complex. The transition metal complex is an effective catalyst for activating hydrogen peroxide compounds, peroxyacids and peroxyacid bleach precursors on removing a wide class of stains from substrates, especially texiles and fabrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.