Azodyes containing a sulfoacetoacetic acid anilide coupling component
US5302704A · kind A · utility
3Cited by
13References
6Claims
0Family size
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Inventors
Key dates
| Filing date | Aug 3, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Aug 3, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B31/115
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dyes of formula ##STR1## wherein D is the radical of a diazo component of the benzene or naphthalene series or of the heterocyclic series, R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.2 is phenyl or substituted phenyl, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group containing fibre materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.