Azo dyes containing a heterocyclic ring having a quaternized nitrogen atom and at least one optionally substituted phenoxyalkyl or naphthyloxyalkyl substituent
US4085098A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1973 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Jul 30, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/001
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are basic azo dyes, free from sulphonic acid groups, and of formula, ##STR1## in which Q signifies an unsubstituted or substituted phenyl or naphthyl radical, PA1 R.sub.1 signifies hydrogen, unsubstituted or substituted C.sub.1-4 alkyl, phenyl or cyclohexyl, PA1 Z signifies a ring forming residue, PA1 R.sub.4 signifies optionally substituted alkyl, alkenyl, alkoxy or cycloalkyl, PA1 K signifies a coupling component, PA1 A.crclbar. signifies an anion, and PA1 x signifies 1, 2 or 3. The dyes are useful for dyeing and printing textiles of polymers and copolymers of acrylonitrile and dicyanoethylene as well as synthetic polyamides and polyesters that have been modified to contain acid groups. The dyeings are level and exhibit good fastness to light, wet treatments, perspiration, sublimation, pressing and dry cleaning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.