Fiber reactive formazan dyes containing a vinyl sulfonyl reactive group
US5563248A · kind A · utility
1Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | May 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/924
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention is a dye composition containing two or more dyes of the vinyl sulfone type which can be used in combination to dye polyamide substrates. Preferably the dye compositions of the invention contain at least three dyes of different primary colors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.