Cyanopyridine N-oxide peroxide bleach activators
US5739096A · kind A · utility
8Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | May 6, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3925
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein are bleaching systems that contain a peroxide and an activator. The activator is a cyanopyridine N-oxide, preferably 2, 3, or 4-cyanopyridine N-oxide. The peroxide is preferably hydrogen peroxide. When such bleaching systems are utilized in an aqueous alkaline environment, they provide bleaching performance on a variety of stains on both hard and soft surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.