Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.

Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.

Abstract: The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.

Abstract: A polyazo compound or salt thereof of the following formula (I): wherein, A represents a naphthyl having 1 to 3 sulfos or a phenyl having 1 to 2 hydrophilic groups selected from sulfo and carboxyl and optionally having a lower alkyl or lower alkoxy, B represents —NHCO— or —N═N—, n represents 0 or 1, R1 to R6 represent hydrogen, lower alkyl or lower alkoxy, R7 represents hydrogen or sulfo, D represents —N═N— when B is —N═N— and represents —NHCO—, —N═N— or —NH— when E is —NHCO—, and E represents a phenyl optionally having 1 to 3 groups selected from hydroxyl, amino, nitro, sulfo, carboxyl, lower alkyl and lower alkoxy; and a dye-based polarization film which manifests high polarization ability, is excellent in durability and light resistant to exposure for a long period of time and is obtainable by adding the above polyazo compound or salt thereof; are provided.

Abstract: The invention relates to novel disazo dyes of the formula in which the substituents and indices have the meaning stated in the disclosure, that are suitable for dyeing and printing polymeric materials and for the preparation of recording liquids for ink jet recording apparatus.

Abstract: Disazo dyes of formula (I) where one of the two symbols X.sup.1 and X.sup.2 means hydroxy and the other amino and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are as defined in the specification. The invention also relates to sulphonamides as their intermediate products and to the use of the dyes for the dyeing of natural and synthetic substrates.

Abstract: Polyazo dyes of the formula I ##STR1## where one of the two radicals X.sup.1 and X.sup.2 is hydroxyl and the other is amino,p and q are each independently of the other 0 or 1,D.sup.1 and D.sup.2 are each independently of the other a radical of the formula ##STR2## and B is a bridge member are prepared using novel sulfonamide intermediates and are useful as dyes for dyeing natural or synthetic substrates.

Abstract: The invention provides novel bisazo compounds which is obtained by coupling two molecules of a 2-hydroxynaphthalene-3,6-dicarboxylic acid derivative and a compound having two diazo groups in its molecule, as well as a process for producing the same. The present compounds are superior in resistance to water, chemical agents, solvents, heat and the like.

Abstract: The novel dyestuffs of the formula (I) ##STR1## in which the substituents R and X have the meaning given in the description, are outstandingly suitable for dyeing cellulosic materials in blue color shades which are particularly fast to light.

Abstract: The novel disazo dyestuffs of the formula (I) ##STR1## in which the substituents and indices have the meaning given in the description, are outstandingly suitable for dyeing cellulosic materials, in particular paper, and are distinguished by good fastness properties.

Abstract: The novel aminomethylnaphthalenecarboxylic acid dyestuffs of the formula (I) ##STR1## in which the substituents and indices have the meaning given in the description, are outstandingly suitable for dyeing cellulosic materials, in particular paper.

Abstract: Disazo dyestuffs have been found which, in the form of the free acid, correspond to the formula (I) ##STR1## represents H or an optionally substituted aliphatic or aromatic radical and R.sup.1 to R.sup.6 and A have the meaning given in the description, which are outstandingly suitable for inkjet printing.

Abstract: An organic photoconductive material is represented by the following general formula [1]:A.sub.1 --N.dbd.N--B--N.dbd.N--A.sub.2 [1],wherein B is a divalent organic group bonded to nitrogen atoms forming azo groups, A.sub.1 and A.sub.2 are groups different from each other, A.sub.1 is represented by the following general formula [A1]: ##STR1## wherein X is an atomic group which is necessary for forming an aromatic hydrocarbon ring or an aromatic hetero-ring by condensation with the benzene ring, Y is a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, m is an integer of 1 to 4, R is an aromatic hydrocarbon ring group or an aromatic hetero-ring group and n is 1 or 2, and A.sub.2 is a group represented by one of the following general formulae [A2] and [A3]: ##STR2## wherein a.sub.1 is a group selected from R, --N.dbd.CH--R and ##STR3## R, X, Y, m and n are the same as those in the general formula [A1] and p is 0 or 1.

Abstract: An organic photoconductive material is represented by the following general formula [1]:A.sub.1 -N.dbd.N-B-N.dbd.N-A.sub.2 [1],wherein B is a divalent organic group bonded to nitrogen atoms forming azo groups, A.sub.1 and A.sub.2 are groups different from each other, A.sub.1 is represented by the following general formula [A1]: ##STR1## wherein X is an atomic group which is necessary for forming an aromatic hydrocarbon ring or an aromatic hetero-ring by condensation with the benzene ring, Y is a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, m is an integer of 1 to 4, R is an aromatic hydrocarbon ring group or an aromatic hetero-ring group and n is 1 or 2, and A.sub.2 is a group represented by one of the following general formulae [A2] and [A3]: ##STR2## wherein a.sub.1 is a group selected from R, -N.dbd.CH-R and ##STR3## R, X, Y, m and n are the same as those in the general formula [A1] and p is 0 or 1.

Abstract: The invention relates to azo dyes of formula ##STR1## wherein A, B and R.sub.1 are as defined in claim 1. The azo dyes of formula (1) give dyeings of good fastness properties on nitrogen-containing or hydroxy group-containing fibre materials, paper or leather.

Abstract: The present invention relates to the preparation of bisazo pigments by reaction (a) of 2 mol of an azocarbonyl chloride of the formula ##STR1## with 1 mol of a diamine of the formula ##STR2## by reaction (b) of one mole of a bis(azocarbonyl chloride) of the formula ##STR3## with 2 mol of an amine of the formula ##STR4## which comprises carrying out the reactions (a) or (b) in the presence of 1,2,3-trimethylbenzene or anisole as the solvent.

Abstract: Novel dyes are provided having the formula: ##STR1## wherein the R's are the same or different and each is a C.sub.6 -C.sub.12 alkyl.

Abstract: A method of using a tubular reactor for accelerating heterogeneous reactions and affording an increased yield rate per unit of time and space wherein the cylindrical reactor tube contains in its interior a piston having relatively flat profiling in its skirt in the form of annular ribs and grooves therebetween, inlet conduits leading into the interior of the reaction tube through the bottom closure thereof, which may also be introduced from above and extend axially through the piston an outlet tube is provided in the region of the top closure of the reaction tube, the piston being connected via a piston rod with a vibrator imparting axial oscillatory movement of the piston, these oscillations generating turbulences in the annular piston grooves which effect a thorough mixing of the reaction participants without causing any noteworthy re-mixing of the resulting reaction products with the starting components; the process involving simultaneous and continuous introduction of a suspension of an insoluble reactant

Abstract: 1:1 and 1:2 metal complexes comprising the unit of the formula ##STR1## wherein A and B, independently, are radicals of diazo or coupling components, with the proviso that when one of A and B is a radical of a diazo component, the other is a radical of a coupling component,T is --SO.sub.2 N(R.sub.1)-- or --N(R.sub.1)SO.sub.2 --, wherein R.sub.1 is hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkyl substituted by phenyl or carboxy or C.sub.2-4 alkyl substituted in the .beta.--, .gamma.-- or .delta.--position by phenoxy, C.sub.1-4 alkyl, chloro or hydroxy, with the proviso that T is --N(R.sub.1)SO.sub.2 -- when A is the radical of a diazo component and T is --SO.sub.2 N(R.sub.

Abstract: This invention relates to novel mixtures consisting essentially of benzanilide bridged disazo compounds which are randomly substituted with x (N-substituted sulfonamido) groups, to acid-addition salts of said disazo compounds, useful as direct dyes particularly in the dyeing of cellulose, and to methods of preparation of said mixtures of (N-substituted sulfonamido) substituted disazo compounds.

Abstract: Compounds of the formula ##STR1## wherein the symbols D is the radical of a carbocyclic or heterocyclic diazo component, X is hydrogen, halogen, methyl or methoxy, each of A.sub.1 and A.sub.2 independently of the other is unsubstituted phenyl or phenyl which is substituted by halogen, C.sub.1 -C.sub.4 alkyl, methoxy, ethoxy, phenyl or phenoxy, are suitable for the mass coloration of organic polymers.

Abstract: Compounds of the formula ##STR1## in which X.sub.1 is hydrogen, alkyl, alkoxy, --NL.sub.1 COM.sub.1, in which L.sub.1 is hydrogen or alkyl and M.sub.1 is alkyl or alkoxy, or is --NL.sub.1 P(O)(OG.sub.1).sub.2, in which G.sub.1 is alkyl, or is alkylsulfonamide or hydroxyl, Y.sub.1 is hydrogen, alkyl, alkoxy, carbalkoxy, N-alkyl-substituted or N,N-dialkyl-substituted amino or --NL.sub.2 COM.sub.2, in which L.sub.2 is hydrogen or alkyl and M.sub.2 is alkyl or alkoxy, Z.sub.1 is hydrogen, alkyl, alkoxy, --NL.sub.2 COM.sub.3, in which M.sub.3 is alkyl, or is carbalkoxy or halogen or represents those atoms which are required to form a ring with Y.sub.1, W.sub.1 is hydrogen, alkyl or alkoxy, R.sub.1 and R.sub.2 independently of one another are hydrogen, halogen, cyano, nitro or --SO.sub.2 U.sub.3, in which U.sub.3 is alkyl or phenyl, R.sub.3 is hydrogen or alkyl or, if R.sub.4 is a direct chemical bond, the two radicals R.sub.3 together are a link member and R.sub.