Azo dyestuffs having a carboxyl group and an iminosulfonamido, iminosulfonylalkyl or iminosulfonylaryl group in the coupling component
US4115381A · kind A · utility
4Cited by
11References
3Claims
0Family size
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Key dates
| Filing date | Sep 14, 1976 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Sep 14, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/0025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dyestuffs of the formula ##STR1## wherein D is a diazo component of the benzene series, PA1 R.sub.1 is an alkyl radical, PA1 R.sub.2 is alkylene and PA1 R is alkyl, aryl or di-substituted amino, dye polyester fibers in red and blue shades with good fastness. The dyestuffs can be used in the thermosol process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.