Dimeric N-alkyl ammonium acetonitrile bleach activators
US6017464A · kind A · utility
12Cited by
38References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1998 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Dec 9, 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 nitrites for bleaching applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.