Nonaqueous liquid nonionic laundry detergent composition containing an alkali metal dithionite or sulfite reduction bleaching agent and method of use
US4797225A · kind A · utility
32Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Sep 8, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0004
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid laundry detergent composition containing an alkali metal dithionite or sulfite reduction bleaching agent. The preferred compositions are nonaqueous liquids based on liquid nonionic surfactants and include a detergent builder salt suspended in the liquid nonionic surfactant. The alkali metal dithionite or alkali metal sulfite reduction bleaching agent can also be used as the bleaching agent in powdered or granular detergent compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.