Reactive trisazo dyes
US6864360B2 · kind B2 · utility
0Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2001 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/4415
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention refers to trisazo dyes of the formula I or an alkali metal salt thereof; wherein:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.