Bleach compositions comprising manganese-containing bleach catalysts
US5686014A · kind A · utility
64Cited by
42References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1995 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Mar 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Bleaching compositions useful for laundering fabrics comprising a manganese bleach catalyst at a level below about 40 ppm manganese sourced by the catalyst. Also, acid wash methods useful for reducing the bleach catalyst carry-over from laundry bleach compositions containing metal-containing bleach catalysts, said methods comprising contacting fabrics impregnated with metal-containing bleach catalysts with an aqueous acidic solution having a pH below about 4.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.