Abstract: Metal-free compounds of the formula ##STR1## 1:1 and 1:2 metal complexes thereof, and acid addition salts of metal-free compounds of said formula and 1:1 and 1:2 metal complexes thereof, whereinB is hydrogen; C.sub.1-4 alkyl; C.sub.1-4 alkyl monosubstituted by C.sub.1-4 alkoxy; C.sub.2-4 alkyl substituted by hydroxy; C.sub.5-6 cycloalkyl; C.sub.5-6 cycloalkyl substituted by 1 to 3 C.sub.1-4 alkyl groups; phenyl(C.sub.1-3 alkyl); phenyl(C.sub.1-3 alkyl) the phenyl group of which is substituted by 1 to 3 substituents selected from C.sub.1-4 alkyl, C.sub.1-4 alkoxy and halo; --A--NH--R.sub.2 ; --A'.sub.4 --N(R.sub.7).sub.2 ; --A.sub.4 --N.sup..sym. (R.sub.8).sub.2 R.sub.9 A.sup..crclbar. or --N(R.sub.7).sub.2,R is hydrogen; C.sub.1-4 alkyl; C.sub.5-6 cycloalkyl; C.sub.5-6 cycloalkyl substituted by 1 or 2 C.sub.

Abstract: Polymers comprising two the more recurring units of formula ##STR1## wherein A.sub.1 is an aromatic bridging groupeach K.sub.1 is independently the radical of a coupling component,E is an aliphatic, aromatic or aromatic heterocyclic bridging radical,each R.sub.1 and R.sub.2 is independently C.sub.1-4 alkyl substituted C.sub.1-4 alkyl, C.sub.3-6 alkenyl or substituted C.sub.3-6 alkenyl orboth R.sub.1 's together with the nitrogen atom to which they are attached and/or both R.sub.2 3 s together with the nitrogen atom to which they are attached form a morpholinium, piperidinium or pyrrolidinium group, andeach A.sup..crclbar. is independently a non-chromophoric anion, are useful as dyes, particularly for dyeing paper and leather.

Abstract: A compound of formula I ##STR1## in metal-free; 1:1 or 1:2 metal complex form and, when an acid group is present, in free acid or acid addition salt form, in which R.sub.1 is hydrogen or --N.dbd.N--D where D is a diazo component and R, T and B are organic radicals defined in the text.

Abstract: Compounds of the formula ##STR1## wherein each R is independently --N(R.sub.1).sub.2, --N.sup..sym. (R.sub.2).sub.3 A.sup..crclbar. or hydroxy, whereineach R.sub.1 is independently hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl or aryl orboth R.sub.1 's taken together and with the nitrogen atom to which they are attached form a 5- or 6-membered saturated heterocyclic ring,each R.sub.2 is independently alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl or aryl ortwo R.sub.2 's taken together and with the nitrogen atom to which they are attached form a 5- or 6-membered saturated heterocyclic ring orall three R.sub.2 's taken together and with the nitrogen atom to which they are attached form a 5- or 6-membered unsaturated heterocyclic ring, andA.sup..crclbar. is a non-chromophoric anion,each T is independently a bridging radical, andZ is hydrogen or --N.dbd.

Abstract: Metal-free compounds and 1:1 and 1:2 metal complexes of the formula ##STR1## or a 1:2 metal complex of a metal-free compound of said formula and a metallizable azo compound not of said formula, whereineach K is independently a coupling component radical of the pyrazolone-5, 5-aminopyrazole, pyridone, 2,6-diaminopyridine, .beta.-naphthol, acetic acid ester, acetic acid amide or N-substituted N,N-disubstituted aniline series,each K.sub.1 is independently ##STR2## wherein R.sub.3 is hydrogen, C.sub.1-4 alkyl, phenyl or benzyl,R.sub.4 is C.sub.1-4 alkyl, (C.sub.1-4 alkoxy)-carbonyl or --CO--N(R.sub.8).sub.2, wherein each R.sub.8 is independently hydrogen or C.sub.1-4 alkyl,R.sub.5 is amino or hydroxy,R.sub.5a is hydroxy,T is hydrogen, cyano, ##STR3## or (C.sub.1-4 alkyl)carbonyl, wherein R.sub.7, R.sub.10, R.sub.12, Z.sub.a and A.crclbar. are as defined in the specification,each R.sub.1 is independently hydrogen, halo, hydroxy, C.sub.1-4 alkoxy or C.sub.1-4 alkyl, orR.sub.1 and R.sub.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, cyano, --COR.sub.4 or --CONR.sub.5 R.sub.6,whereinR.sub.4 is C.sub.1-4 alkyl or phenyl,R.sub.5 is hydrogen, C.sub.1-4 alkyl or phenyl, andR.sub.6 is hydrogen or primary or secondary C.sub.1-4 alkyl,R.sub.2 is hydrogen, C.sub.1-4 alkyl, phenyl, benzyl or phenylethyl,R.sub.3 is a straight or branched C.sub.2-8 alkylene or alkenylene bridge, optionally interrupted by one oxygen atom,R is a radical ##STR2## wherein each R.sub.13, independently, is hydrogen or halogen, and either Q has a first significance selected from the groups of the formulae ##STR3## wherein R.sub.7 and R.sub.8, independently, are C.sub.1-8 alkyl,R.sub.9 is C.sub.1-4 alkyl, unsubstituted or mono-substituted by halogen, C.sub.1-4 alkoxy, C.sub.1-4 alkylcarbonyl or benzoyl,R.sub.10 is hydrogen or C.sub.1-4 alkyl, and A.sup..crclbar. is an anion,or Q has a second significance selected from the groups of the formulae ##STR4## wherein R.sub.7, R.sub.8, R.sub.10 and A.sup..crclbar.

Abstract: Compounds of the formula ##STR1## wherein R is chlorine or bromine,R.sub.1 is straight or branched chain unsubstituted C.sub.1-4 alkyl,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,R.sub.3 and R.sub.4, independently, are hydrogen, chlorine, bromine or methyl,R.sub.5 is methyl or ethyl,n is 2 or 3, andA.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.

Abstract: Disclosed are disazo and trisazo dyes free of sulfo groups which contain two 6-hydroxy-4-methyl-3-N-pyridiniumpyridone-2 coupling component radicals, preferably dyes of the formula ##STR1## wherein R is a tetrazo component radical,Each R.sub.1 is independently hydrogen, C.sub.1-4 alkyl, C.sub.1-4 hydroxyalkyl or --NR.sub.3 R.sub.4,wherein each of R.sub.3 and R.sub.4 is independently n-C.sub.1-4 -alkyl,Each R.sub.2 is independently hydrogen, n-C.sub.1-4 alkyl, n-C.sub.1-4 -hydroxyalkyl or C.sub.1-4 alkoxy, andEach A.sup.- is an anion.The dyes are useful for dyeing paper and basically dyeable substrates such as polymers and copolymers of acrylonitrile and dicyanoethylene and synthetic polyesters and polyamides modified to contain acid groups. Dyeings on textiles are even and possess good light fastness.