Azo dyes containing a 3-aminobenzothienoisothiazole diazo component
US5037966A · kind A · utility
3Cited by
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7Claims
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Key dates
| Filing date | Feb 28, 1990 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Feb 28, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/0096
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Dyes of the formula ##STR1## where R and R.sub.1 are independently of the other hydrogen, halogen, nitro, alkyl or alkoxy and KK is the radical of a coupling component, which are particularly suitable for dyeing polyester fibers if no water-solubilizing group is present, and which are particularly suitable for dyeing and printing textile materials made of polyamide fibers when at least one sulfo group is present in the dye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.