Azo dyestuffs having a carboxyl group and a substituted sulfonylimino group in the coupling component
US4179435A · kind A · utility
3Cited by
11References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1978 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | Jun 22, 1998 |
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 heterocyclic diazo component, PA1 R.sub.1 is an alkyl radical which may be substituted, PA1 R.sub.2 is phenylene or alkylene PA1 d is hydrogen, chloro, lower alkyl, lower alkoxy, aryl, aryloxy or arylmercapto, and PA1 R is an optionally substituted alkyl, aryl or amino group, dye polyester fibers in red and blue shades with good fasteners, and are suitable for use in the thermosol process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.