Sulfo group-containing basic azo compounds having a central 1,3,5-triazine ring and two terminal 1-hydroxynaphthyl-2 groups and 1:1 and 1:2 metal complexes therof
US4742160A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Feb 28, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Metal-free compounds of the formula ##STR1## and 1:1 and 1:2 metal complexes thereof, and salts of the metal-free compounds and 1:1 and 1:2 metal complexes, where PA0 R is hydrogen, --SO.sub.3 H or --NR.sub.5 R.sub.6 ; PA0 R.sub.a is hydrogen or --NR.sub.5 R.sub.6 ; PA0 R.sub.1 is hydrogen, halogen, --OH, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or --SO.sub.3 H; PA0 R.sub.3 is hydrogen or C.sub.1-4 alkyl; PA0 R.sub.4 is halogen, --OH, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, phenyl, --NH.sub.2, an aliphatic, cycloaliphatic or aromatic amino group, a heterocyclic amino group containing 1 to 3 hereto atoms or a hydrazino group, PA0 R.sub.5 is hydrogen or C.sub.1-4 alkyl; and PA0 R.sub.6 is an organic radical, are useful as cationic dyes for dyeing and printing fibers, threads and textile materials comprising, for example, a natural or regenerated cellulosic material such as cotton, a modified synthetic polyamide or polyester, and a homo- or co-polymer of acrylonitrile or 1,1-dicyanoethylene, bast fibers such as hemp and particularly paper and leather.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.