Dimeric N-Alkyl ammonium acetonitrile bleach activators
US5877315A · kind A · utility
22Cited by
37References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1998 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Apr 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0619
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Bleaching compositions are provided that comprise two nitrile groups where each nitrile is bonded to a quaternary nitrogen through a methylene unit. The quaternary nitrogens are part of a saturated ring. This saturated ring contains from two to eight atoms in addition to the quaternary nitrogen. A source of active oxygen will react with the nitriles for bleaching applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.