Liquid hydrogen peroxide/peracid precursor bleach: acidic aqueous medium containing solid peracid precursor activator
US4772290A · kind A · utility
37Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Mar 10, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3907
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Storage-stable, low temperature-active liquid hydrogen peroxide laundry bleaching compositions are provided. The compositions contain a dispersion of a solid particulate peracid activator in acidic aqueous hydrogen peroxide. The activator is insoluble at the acidic conditions of storage but dissolves and activates the hydrogen peroxide at the alkaline conditions of use in laundry. Optionally the bleaching compositions can contain optical brighteners, surfactants, and/or fabric softeners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.