Liquid laundry detergent-bleach composition and method of use
US4786431A · kind A · utility
44Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Jul 6, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3947
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a liquid laundry detergent composition containing a perborate bleach, hydroxylamine sulfate is added as a bleach stabilizer and specifically as an inhibitor of catalase, an enzyme present in natural body soils, which enzyme will rapidly decompose hydrogen peroxide, the active bleaching component of the perborate bleach. The preferred compositions are non-aqueous liquids based on liquid nonionic surfactants and preferably include a detergent builder salt suspended in the liquid nonionic surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.