Blue reactive dyestuffs
US5990290A · kind A · utility
5Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Dec 4, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/4415
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides the blue dyestuffs of the following formula (I), ##STR1## wherein R.sub.1, R.sub.2, X, X.sub.1, X.sub.2, Y, and Z are defined in this document. These kinds of dyestuffs are suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp, or synthetic polyamide and polyurethane fibers, such as wool, silk, and nylon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.