Water-soluble azo dyes having a 2-acetoacetamidofluorenyl coupling component radical
US4017478A · kind A · utility
1Cited by
18References
13Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 6, 1974 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Sep 6, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/919
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dyes of the formula ##STR1## wherein D is a carbocyclic aryl or heterocyclic aryl diazo component radical, PA1 q is 0 to 3, and PA1 t is 0, 1 or 2, With the proviso that q + t is 1 to 5, are highly The dyeing, padding and printing of textile fibers and textiles of natural or regenerated cellulose and paper. The dyes build-up well, exhibit good fastness to wet treatments, alcohol, light, rubbing and dry cleaning and are resistant to acids and alkalis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.