Abstract: The disazo dyestuffs and mixtures thereof, of the general formula I ##STR1## wherein the symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and M possess the significances given in claim 1, are eminently suitable for dyeing or printing organic substrates containing hydroxyl, thiol or amido groups, especially cotton or paper.

Abstract: Mixtures comprising at least two dyes of formula I ##STR1## where R is unsubstituted linear C.sub.3-7 alkyl, with the proviso that at least two different dyes of formula I are each present to the extent of at least 10 mole %, based on the total molar quantity of dyes present, which are useful for dyeing and printing synthetic and semi-synthetic high molecular weight, hydrophobic organic substrates, particularly for rapid dyeing.

Abstract: The present invention relates to para-substituted-amino-.beta.,.beta.-dicyano styryl disperse dye compounds having an acyloxy group in an ortho position to the methine group.

Abstract: Disclosed are compounds of formula I, ##STR1## in which R.sub.1 is C.sub.2-8 alkylene or C.sub.5-8 cycloalkylene,R.sub.2 is C.sub.5-8 cycloalkyl, unsubstituted or substituted by up to 3 methyl groups; or C.sub.1-8 alkyl, unsubstituted or substituted by a C.sub.1-4 alkoxy, C.sub.1-4 alkylthio, C.sub.1-4 alkylcarbonyloxy, C.sub.1-4 alkoxycarbonyloxy or C.sub.1-4 alkoxycarbonyl,Either R.sub.3 is hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or C.sub.1-4 alkoxycarbonyl,And R.sub.4 is halogen, cyano, trifluoromethyl, C.sub.5-8 cycloalkyl, C.sub.1-4 alkoxy, C.sub.5-8 cycloalkoxy, C.sub.1-4 alkylthio, C.sub.5-8 cycloalkylthio, phenyl, phenoxy, phenylthio, phenylthio-C.sub.1-4 alkyl, phenyl-C.sub.1-4 alkyl, phenoxy-C.sub.1-4 alkyl, phenylazo, C.sub.1-4 alkoxycarbonyl, C.sub.5-8 -cycloalkoxycarbonyl, phenoxycarbonyl, benzoyl, benzoyloxy, phenoxycarbonyloxy, phenylsulphonyloxy or phenyl-C.sub.1-4 alkylthio,Or R.sub.3 and R.sub.

Abstract: The invention provides novel disperse dyes of formula I, ##STR1## in which D signifies the radical of a diazo component,Hal signifies chlorine or bromine,R.sub.2 signifies hydrogen, unsubstituted or substituted amino, or an unsubstituted or substituted hydrocarbon radical which may contain hetero atoms,AndR.sub.1 signifies cyano or a radical --COOR.sub.3 or --CONR.sub.4 R.sub.5, in which R.sub.3 signifies unsubstituted or substituted alkyl or phenyl, R.sub.4 signifies hydrogen, unsubstituted or substituted amino, or an unsubstituted or substituted hydrocarbon radical which may contain hetero atoms,And R.sub.5 signifies hydrogen or unsubstituted or substituted alkyl or phenyl,provided that the compounds contain no sulphonic acid radicals.These dyes are useful for dyeing and printing synthetic and semisynthetic high molecular weight hydrophobic fibers such as aromatic polyesters, synthetic polyamides, secondary cellulose acetate and cellulose triacetate.

Abstract: The present invention relates to para-substituted-amino-.beta.,.beta.-dicyano- or .beta.-cyano-,.beta.-acyl-distyryl disperse dyes in which the benzene nuclei of the two styryl radicals are connected by a bridge member.