Amphoteric fluorescent whitening agents
US7247174B2 · kind B2 · utility
1Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Mar 10, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides novel bis-triazinylaminostilbene amphoteric fluorescent whitening agents, comprising both individual components and mixtures thereof, a process for their preparation, intermediates useful for their prepartion and use of the fluorescent whitening agents for the fluorescents whitening of paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.