Basic dyes based on amides of j-acid (1-hydroxy-6-aminonaphthalene-3-sulfonic acid) and amides of j-acid
US5571898A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jul 11, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B44/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are described dyes of the formula ##STR1## where the ring A may be benzofused, R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted phenyl, C.sub.1 -C.sub.8 -alkanoyl, substituted or unsubstituted benzoyl, substituted C.sub.2 -C.sub.4 -alkanoyl, or substituted diaminotriazinyl, R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl or R.sup.1 and R.sup.2 together with the nitrogen atom joining them together are a heterocyclic radical, R.sup.3 and R.sup.4 are each substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl or substituted or unsubstituted piperidinyl and R.sup.3 may also be hydrogen, R.sup.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.2 -C.sub.5 -alkanoylamino, halogen, nitro, cyano, substituted or unsubstituted phenylazo, C.sub.2 -C.sub.4 -alkanoylamino substituted by a quaternizable or quaternary group, or C.sub.2 -C.sub.4 -alkoxy, C.sub.2 -C.sub.4 -alkoxycarbonyl or C.sub.2 -C.sub.4 -alkoxycarbamoyl which are each substituted by a quaternizable or quaternary group, and R.sup.6 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.