Imine quaternary salts as bleach catalysts
US5550256A · kind A · utility
33Cited by
13References
1Claims
0Family size
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Key dates
| Filing date | Apr 5, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Apr 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3945
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel bleach catalysts, a method for bleaching substrates using these catalysts and detergent compositions containing the catalysts are reported. The catalysts are quaternary imine salts. Substrates such as fabrics may be bleached in an aqueous solution containing these salts and a peroxygen compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.