1-(N-alkyl-n-benzyl or substituted benzyl-N-methyl(ammonium)alkyl)-3-cyano-4-alkyl-5-(alkyl-halo-phenyl)azo -6-hydroxypyridone-2 compounds
US4228072A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1977 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Sep 19, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B44/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein R is chlorine or bromine, PA1 R.sub.1 is straight or branched chain unsubstituted C.sub.1-4 alkyl, PA1 R.sub.2 is --CH.sub.3, C.sub.2 H.sub.5, n--C.sub.3 H.sub.7 or n--C.sub.4 H.sub.9, PA1 R.sub.3 and R.sub.4, independently, are hydrogen, chlorine, bromine or methyl, PA1 R.sub.5 is methyl or ethyl, PA1 n is 2 or 3, and PA1 A.sup..crclbar. is an anion, their production and use for dyeing and printing cationic dyeable substrates, e.g., polymers and copolymers of acrylonitrile and asymmetric dicyanoethylene and synthetic polyamides and polyesters modified by the introduction of acidic groups, and for dyeing plastics in the mass, paper and leather.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.