Abstract: Novel dendritic molecules are provided which respond immediately by emission of light when stimulated with light or electric energy, and are useful, for example, as switching material of memory. The dendritic molecules have a core, a branch structure composed of Unit 1 represented by the following formula: wherein, ring A stands for a homo or heterocyclic six membered ring, optionally other branched structures, and surface functional groups as essential constituents.

Abstract: The present invention relates to fluorene compounds and polymers thereof, having various structures and functional groups, and capable of being used as a luminescent material for organic and polymer-based electro-luminescence (EL) element and other optical element, and to an EL element using the same as a luminescent material.

Abstract: A broad class of pharmaceutical agents which react directly with electron carriers or with reactive species produced by electron transport to release a pharmacologically active molecule to effect a therapeutic functional change in the organism by a receptor or nonrecepter mediated action.

Abstract: 1 A dye mixture comprises, as component (A), a reactive dye of the formula (A) wherein each of Y1 and Y2, independently, is a vinyl group or a group of the formula —CH2CH2Q in which Q is a leaving group removable under alkaline conditions to provide a vinyl group; and, as component (B), at least one additional reactive dye selected from a monopyrazole dye of the formula (I), a mono or disazo dye of the formula (II), a monoazopyridone dye of the formula (III), a monoazonaphthyl dye of the formula (IV), a disazoaminonaphthyl dye of the formula (V), a formazan dye of the formula (VI), an azoacetoacetanalide dye of the formula (VII), a disazo dye of the formula (VIII), a naphthylamide or a naphthalenetriazole dye of the formula (IX), a metal phthalocyanine dye of the formula (X) or a triphendioxazine dye of the formula (XI), as defined herein.

Abstract: The invention relates to novel monodisperse or polydisperse compounds, in general named DNO (diamino acid N&agr;-substituted oligopeptides), preferably low molecular weight polypeptides, e.g., based on ornithine, lysine, diaminobutyric acid, diaminopropionic acid, aminoethylglycine or other amino acids or peptides having azobenzenes or other physicially functional groups, e.g., photoresponsive groups, as side chains. These compounds may be synthesized using solid phase peptide synthesis techniques. Materials, e.g., thin films, comprising such compounds may be used for optical storage of information (holographic data storage), nonlinear optics (NLO), as photoconductors, photonic band-gap materials, electrically conducting materials, electroluminescent materials, piezo-electric materials, pyroelectric materials, magnetic materials, ferromagnetic materials, ferroelectric materials, photorefractive materials, or materials in which light-induced conformational changes can be produced.

Abstract: A photorefractive composite comprises a charge transport matrix and an electrooptic dye having an aliphatic group of four or more carbon atoms.

Abstract: Dyestuffs represented by the below-described formula (1), that is, dyestuffs formed of a chromophoric nucleus and a bisphenol introduced therein have excellent solubility in solvents and binder resins, and can provide color filters having excellent transmittance characteristics and durability. ##STR1## wherein Dye represents a chromophoric nucleus, X represents a direct bond or a divalent connecting group, R.sup.1 to R.sup.10 and n are defined with the provision that one of R.sup.9 and R.sup.10 has 3 or more carbon atoms.

Abstract: An azoamide compound of the formula: ##STR1## wherein R.sup.1 through R.sup.4 are independently an alkyl group; X is an alkylene groupl Y is --O-- or --NH--; and n is an integer of 2 or more, is effective for producing a macroazo compound, which is a useful initiator for producing block copolymers.

Abstract: Amyloid aggregation in animals is inhibited by administering a naphthylazo compound of formula (I), wherein R1 and R2 are hydrogen, alkyl, substituted alkyl, or complete a heterocyclic ring, R3 is hydrogen or alkyl, R4, R5, R6, and R7 are substitutent groups. The compounds are especially useful in preventing and treating Alzheimer's disease.

Abstract: An azo group-containing high molecular weight compound including --COHN--, an ester linkage, or an amido linkage and a monomer units of 10 to 1000 derived from .alpha.,.beta.-ethylenically unsaturated monomer is effective for producing a block copolymer having two or more polymer segments different in structure by one-step reaction.

Abstract: A disazo dye composition comprising at least a disazo dye represented by the formula (I) and a disazo dye represented by the formula (II): ##STR1## (wherein X and Y indicate an alkoxy group having 1 to 4 carbon atoms, and M indicates hydrogen or a cation selected from the group consisting of, alkaline metal, NH.sub.4, alkyl-substituted ammonium, alkanolammonium, morpholinium and piperidinium), wherein, when the disazo dye composition is analyzed by liquid chromatography, the area ratio of the peak area (Sp) of the disazo dye represented by the formula (I) to the peak area (Sc) of the disazo dye represented by the formula (II), that is Sp:Sc is from 1:0.4 to 1:2.4. This disazo dye composition provides a high quality image, rapid ink fixing and the like even on the plain paper.

Abstract: A broad class of pharmaceutical agents which react directly with electron carriers or with reactive species produced by electron transport to release a pharmacologically active molecule to effect a therapeutic functional change in the organism by a receptor or nonrecepter mediated action.

Abstract: A process for coloring a synthetic textile material or fibre blend thereof which comprises applying to the synthetic textile material a compound or mixture thereof, which is free from water solubilizing groups, of Formula (1):A--N.dbd.N--D Formula (1)whereinA and D each independently is an optionally substituted heterocyclic or carbocyclic group and at least one of A or D carries directly at least one --SO.sub.2 F group or carries a substituent to which at least one --SO.sub.2 F group is attached except for 4-(4-fluorosulphonylphenylazo)-N,N-dimethylaniline, provided that one of A or D is not 3,5-difluorosulphonylthien-2-yl, optionally substituted 1-phenyl-pyrazol-4-yl-5-one or ##STR1## or that one of A or D does not carry an --NCH.sub.2 CH(OH)CH.sub.2 Cl, --NCOCH.sub.2 Cl or --NCH.sub.2 CH.sub.2 SO.sub.2 F substituent.The presence of one or more --SO.sub.2 F groups in a dye molecule generally improves the properties of that dye and confers surprisingly good wet fastness and light fastness properties.

Abstract: A blue type disperse dye mixture comprising a monoazo dye of the formula (1) in an amount of 1.0 part by weight and at least one of anthraquinone dyes of the formulae (2) to (4) in a total amount of from 0.2 to 3.

Abstract: The cationic imidazole azo dyes of the formulae ##STR1## in which A and A.sub.1 independently of one another are each a radical of the formula ##STR2## Z is the radical of an aliphatic or aromatic diamine, R.sub.1 and R.sub.2 are each hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or, together with the two nitrogen atoms to which they are attached and with Z, form a 5-, 6- or 7-membered ring, X is the radical of a bridging member, n is 2, 3 or 4, Z.sub.1 is the radical of an aromatic diamine, Z.sub.2 is the radical of an aliphatic diamine, KK is the radical of a coupling component, R.sub.3 and R.sub.4 are each hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl, R.sub.5 and R.sub.6 independently of one another are each hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and An.sup..crclbar. is a colorless anion, are particularly suitable for the dyeing of paper in red or violet shades having good fastness properties.

Abstract: Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein R and R.sub.1 are independently hydrogen, chloro, methyl or ethyl groups.A process for preparing azo pigment compositions is also disclosed.Paint, ink and plastic compositions containing the foregoing pigments compositions are disclosed.

Abstract: The invention relates to mixtures comprisingone or more phthalocyanine dyes of formula I ##STR1## wherein CuPc is the radical of a Cu-phthalocyanine dye,A is selected from the group consisting of optionally substituted, linear or branched C.sub.2 -C.sub.6 -alkylene groups,R.sub.1 and R.sub.2 independently of one another, are selected from the group consisting of hydrogen or optionally substituted, linear or branched C.sub.1 -C.sub.6 -alkyl,M is selected from the group consisting of hydrogen, lithium, sodium, potassium, ammonium or substituted ammonium,x and y is 1 to 3, with the provision that the sum of x+y is 3 to 4, and; one or more azo dyes of formula II: ##STR2## wherein R.sub.

Abstract: Organosilicon polymers, including crosslinked polymers and crosslinkable prepolymers, of cyclic polysiloxane, organic dyes, and, optionally, polyenes. The dyes include those with delocalized Pi electron systems linking electron donor groups and electron acceptor groups, and with at least two carbon-carbon double bond-containing pendant groups attached to at least two different sites from among the indicated delocalized Pi electron systems, donor groups, and acceptor groups.

Abstract: Mixtures of dyestuffs of the formulae (I) and (II) ##STR1## which are outstanding substitute products for the anthraquinone dyestuff Disperse Blue 56, have been found.

Abstract: Dye mixtures which comprise at least one anionic acid dye of the formula ##STR1## together with at least one anionic acid dye of the formula ##STR2## in which the substituents are as defined in claim 1, and the novel dyes of the formulae (1) and (2) are direct dyes for cellulosic fibre materials in particular. They have a high heat stability and are particularly suitable for one-bath, one-stage dyeing of polyester/cotton blend fabrics with a disperse dye for the polyester fibres under the dyeing conditions for polyester fibres.

Abstract: Anilines of the formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, unsubstituted or substituted alkyl, alkenyl or unsubstituted or substituted phenyl orR.sup.1 and R.sup.2, together with the nitrogen atom linking them are a heterocyclic radical or R.sup.1 may furthermore be unsubstituted or substituted hydroxyl or unsubstituted or substituted amino,R.sup.3 and R.sup.7 are each hydrogen, unsubstituted or substituted alkyl, alkenyl, cyano, nitro, acyl, acylamino, unsubstituted or substituted hydroxyl, unsubstituted or substituted carboxymethyl, unsubstituted or substituted amino, unsubstituted or substituted mercapto or unsubstituted or substituted sulfamoyl or, together with R.sup.2, are alkylene, alkenylene or phenylalkenylene,R.sup.4 is hydrogen, unsubstituted or substituted alkyl, alkenyl, unsubstituted or substituted hydroxyl, unsubstituted or substituted amino, unsubstituted or substituted carboxyl or unsubstituted or substituted sulfamoyl andR.sup.5 and R.sup.

Abstract: Dye mixtures comprising at least 4 dyes of the same color having the formula ##STR1## where D is the radical of a diazo component of the aminoanthraquinone, aniline, aminothiophene, aminothiazole, aminoisothiazole, aminothiadiazole or aminobenzisothiazole series,one of X1 and X2 is substituted or unsubstituted phenylamino while the other is a radical of the formula NH--L--O--R, where L is substited or unsubstituted C.sub.2 -C.sub.8 -alkylene, andR is hydrogen, C.sub.1 -C.sub.4 or C.sub.1 -C.sub.3 -alkanoyl,are useful for dyeing or printing textile materials.

Abstract: The invention discloses a process for the preparation of azo dyes using an aminodiphenylamine as diazo component. The process comprises reacting the amine, an alkali metal nitrite and a mineral acid continuously in the temperature range from 35.degree. to 65.degree. C. to give the diazo compound, using a 3 to 15% excess of alkali metal nitrite, and thereafter coupling the diazo compound to a coupling component. Azo dyes of superior quality constancy and in high yield are obtained by the novel process.

Abstract: The present invention provides methods of detecting and suppressing an undesired immune response, and agents suitable for use therein. More specifically, the present invention, provides agents and methods for their use, directed at detecting and suppressing an undesired immune response to compositions containing sulfamethoxazole.

Abstract: Dyeing agents which are excellent in visual recognition of discernible or tangible components in a sample cause no coagulation of proteins, sugars or glycoproteins dissolved in the sample. An apparatus for image analysis of flow type stain particles uses the dyeing agents, and particles of discernible components suspended in a flowing sample can be detected so that images of the particles can be efficiently photographed and the discernible components can thus be analyzed by image processing of the thus-obtained image.

Abstract: Acrylic acid or water-soluble derivatives thereof can be polymerized effectively in a short time using as a polymerization initiator an inorganic acid salt or organic acid salt of 2,2'-azobis(2-methylpropionamidoxime).

Abstract: Black fiber-reactive azo dye mixtures and use thereof for dyeing hydroxy- and/or carboxamido-containing fiber materialMixtures of fiber-reactive dyes are described which can be used to obtain deep black dyeings and prints on hydroxy- and/or carboxamido-containing fiber materials such as cellulose fiber materials, wool and synthetic polyamide fibers by the application methods which are customary in the art for fiber-reactive dyes. The dye mixtures comprise one or more disazo dyes of the formula (1) and one or more monoazo dyes of the formula (2) ##STR1## in which M is hydrogen or an alkali metal, R.sup.o is sulfo or carboxyl, R.sup.1 is hydrogen, methyl, ethyl, methoxy, ethoxy, sulfo or carboxy , R.sup.2 is hydrogen, methyl, ethyl, methoxy or ethoxy, Y is at each occurrence independently of the others vinyl, .beta.-chloroethyl, .beta.-phosphatoethyl, .beta.-thiosulfatoethyl or .beta.

Abstract: Processes for preparing a carbon product having an organic group attached to a carbon material. The carbon material is selected from graphite powder, a graphite fiber, a carbon fiber, a carbon cloth, a vitreous carbon product, and an activated carbon product. In one process at least one diazonium salt reacts with a carbon material in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon material in a protic reaction medium.

Abstract: Compounds of the formula ##STR1## wherein A is C.sub.1-6 alkylene, D is a diazo component radical of the triazolyl, pyrazolyl, cyano(C.sub.1-4 alkyl)-imidazolyl, 4-chlorothiazolyl, 4-chlorotheinyl-2, 3-phenyl-1,2,4-thiadiazolyl-5, isothiazolyl-5, benzoisothiazolyl-3 or 1,3,4-thiadiazolyl-5 series or the phenyl series wherein the phenyl group is free of sulfonyl groups and may be substituted, by a maximum of 3 substituents 5-nitrothiazolyl-2, ##STR2## R.sub.1a is phenyl or phenyl substituted by 1 to 4 substituents each of which is independently halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, trifluoromethyl, hydroxy, nitro, formyl, cyano, --SCN, (C.sub.1-4 alkyl)carbonyl, (C.sub.1-4 alkyl)carbonylamino, (C.sub.1-4 alkoxy)carbonyl, (C.sub.1-4 alkyl)carbonyloxy, carbamoyl, (C.sub.1-2 alkoxy)(C.sub.2-3 alkoxy)carbonyl or phenyl, andR.sub.2 -R.sub.4 and R.sub.10 -R.sub.

Abstract: Methods and compositions for detecting and measuring the concentration in solution of polyhydroxyl compounds, such as sugars. The invention makes use of certain dye compositions that, when linked to a derivative of boronic acid (or boronate ion), arsenious acid (or arsenite ion), or germanic acid (or germanate ion), exhibit quantitative responses to the presence of polyhydroxyl species.

Abstract: There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridges,m is 1 or 2,K is the radical of a coupling component,Y is hydrogen or arylazo,one of the two radicals X.sup.1 and X.sup.2 is hydrogen and the other is hydroxysulfonyl,R.sup.1, R.sup.2 and R.sup.3 are independently of the others hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl, cyclohexyl, phenyl, 2-hydroxy-ethylsulfonyl or C.sub.1 -C.sub.4 -alkoxy or, when m is 1 and Y is hydrogen, one of these substituents can also be the radical of the formula ##STR2## where L.sup.1 is a chemical bond or a bridge member, and X.sup.1, X.sup.2, R.sup.4, K and the ring A are each as defined above, andR.sup.4 is hydrogen, halogen or C.sub.1 -C.sub.

Abstract: Method for detecting marked mineral oils by treating the marked mineral oil with an extractant comprising water, a solvent and a base comprises using as marker an azo dye of the formula ##STR1## where ring A may be benzofused,m is from 1 to 4,X.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, cyano or nitro,X.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, cyano, nitro, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.16 -alkoxycarbonyl,X.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, cyano or C.sub.1 -C.sub.16 -alkoxycarbonyl, andX.sup.4 is hydrogen, hydroxyl, substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkoxy, amino, C.sub.1 -C.sub.4 -dialkylamino or substituted or unsubstituted C.sub.1 -C.sub.16 -monoalkylamino,as solvent a partially or completely water-miscible organic solvent, and as base an alkali or alkaline earth metal hydroxide, an alkali metal carbonate or a quaternary ammonium hydroxide, the use of azo dyes as markers for mineral oils, and novel azo dyes.

Abstract: Methods for detecting nucleic acids in a sample, using naphthol derivative phosphates, are provided. Nucleic acids present in a sample are contacted with phosphatase, producing a modified phosphatase. A naphthol derivative phosphate is contacted with the modified phosphatase to produce a reaction product. Any reaction product formed is detected by irradiating it with an excited light and detecting a fluorescence emitted from the reaction product. Naphthol derivative phosphates useful in these methods are also provided. Methods for production of naphthol derivative phosphates are also provided.

Abstract: An azo lake of the formula ##STR1## in which ##STR2## R.sup.1 =--OH or --NR.sup.4 R.sup.5, R.sup.2 = ##STR3## except the lake of the formula ##STR4## Such azo lakes are useful as pigments.

Abstract: Disazo compounds of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are a hydrogen or halogen atom or a C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.5 -alkoxycarbonyl, nitro, cyano or trifluoromethyl group and the rings A, B, C and D independently of one another are unsubstituted or contain one or more substituents from the group comprising C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.sub.5 -carbalkoxy, C.sub.2 -C.sub.5 -alkanoyl, benzoyl, acyloxy, acylamino, unsubstituted or N-mono- or N,N-disubstituted carbamoyl or unsubstituted or N-mono- or N,N-disubstituted sulfamoyl, possible substituents being C.sub.1 -C.sub.4 -alkyl or mono- to trisubstituted phenyl; C.sub.1 -C.sub.4 -alkylamino or phenylamino; C.sub.1 -C.sub.

Abstract: Compounds of the formula ##STR1## and salts thereof, and mixtures of such compounds and salts, wherein F.sub.c is ##STR2## wherein D.sub.1 is an unsubstituted or substituted phenyl or naphthyl diazo component radical,each of Q.sub.1, Q.sub.2 and Q.sub.3 is independently hydrogen or a substituent,each R.sub.5 is independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,each R.sub.6 is independently hydrogen, halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, (C.sub.1-4 alkyl)carbonylamino or --NH--CO--NH.sub.2,R.sub.16 is hydrogen or --SO.sub.3 H,r is 1 or 2, andt is 2 or 3, andb is 1 or 2,whereineach R.sub.1 is independently hydrogen or C.sub.1-4 alkyl,each R.sub.7 is independently hydroxy, C.sub.1-4 alkoxy or --NH.sub.2,each Z is independently ##STR3## and each m is independently 0 or 1.

Abstract: A dye-incorporated composition which comprises a cyanine type dye and an azo metal chelate compound comprising an azo type compound of the following formula (I): ##STR1## (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, B is a residue forming an aromatic ring or a hetero ring together with the two carbon atoms to which it is bonded, and X is a group having an active hydrogen), and a metal, and an optical recording medium comprising a recording layer which contains the dye-incorporated composition.

Abstract: A disperse dye mixture comprising from 20 to 80% by weight of a red disperse dye of the following formula (A) and from 20 to 80% by weight of a red disperse dye of the following formula (B): ##STR1## wherein R.sup.1 is --C.sub.2 H.sub.5 or --C.sub.2 H.sub.4 OCOCH.sub.3, R.sup.2 is --C.sub.2 H.sub.4 OCOCH.sub.3 or --C.sub.2 H.sub.4 CN, and R.sup.3 is hydrogen or --CH.sub.3.

Abstract: A Monoazo dye of the general formula I ##STR1## in which X is methyl, chlorine or bromineR.sup.1 is ethyl, n-propyl, i-propyl, n-butyl or i-butylR.sup.2 is methyl, ethyl, n-propyl, i-propyl, n-butyl or i-butyl andn is 2 or 3,mixtures containing dyes of the general formula I and the preparation of these dyes and their mixtures and their use for the dyeing of hydrophobic synthetic materials, in particular for automotive cover fabrics.

Abstract: The present invention provides primary hydroxyl enhanced colorants having markedly improved reactivities in e.g., polyurethane foams for imparting permanent coloring thereto, the colorants having the formulaC--(Z).sub.1-4are provided wherein C is an azo, methine, or azamethine chromogen and Z is a poly(oxyalkylene) moiety comprised of (1) at least two (A) units independently selected from those of the formulae--CH.sub.2 CH(O--T)CH.sub.2 O-- or --CH.sub.2 CH(O--T)CH.sub.2 O--Tand (2) from none to about 200 (B) units of the formula (--RO--) wherein R is straight or branched chain hydrocarbon of 2-4 carbons, T is a moiety of the formula--CH.sub.2 CH(R.sub.1)--O--(RO).sub.0-40 --CH.sub.2 CH.sub.2 OHwherein R.sub.1 is selected from unsubstituted or substituted alkyl, aryl, alkenyloxyalkyl, alkoxyalkyl or aryloxyalkyl, and wherein the A units comprise at least 0.5 percent of the total A+B units.

Abstract: Azo dyestuffs of the formula ##STR1## having the substituent meanings given in the description, are outstandingly suitable for dyeing and printing materials containing hydroxyl groups and amide groups.

Abstract: A recording liquid containing a dye, glycerine, an aliphatic monohydric alcohol and water. The dye is a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: ##STR1## [where Q1 is a phenyl group or a naphthyl group which are substituted by a lower alkyl carbonylamino group and a lower alkoxy group or a naphthyl group substituted by a SO.sub.3 M group, Q2 is a naphthyl group substituted by a SO.sub.3 M group or a phenyl group substituted by a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, or a phenyl group or a naphthyl group which are substituted by a SO.sub.3 M group, R.sub.1 and R.sub.2 are each a lower alkyl group, a lower alkoxy group or a lower alkyl carbonylamino group, R.sub.3 is a hydrogen or a phenyl group substituted by a SO.sub.3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.

Abstract: A monoazo lake pigment and use thereof; the monoazo lake pigment is obtained by subjecting to a coupling reaction a diazo component mixture containing a naphthalene-based or benzene-based amine having a soluble group and 0.1 to 20 mol %, based on said amine, of a naphthalene-based or benzene-based amine having no soluble group and a coupler component mixture containing either .beta.-naphthol or .beta.-oxynaphthoic acid and 0.1 to 30 mol %, based on said .beta.-naphthol or .beta.-oxynaphthoic acid, of at least one member selected from compounds of the following formulae (I) to (III), and carrying out a lake-forming reaction of a coupling reaction product during or after said coupling reaction, ##STR1## wherein each of X.sub.1, X.sub.2 and X.sub.3 is at least one water-insoluble group selected from the group consisting of a halogen atom, a lower alkoxy group, a lower alkyl group, a nitro group and an amino group substituted with a lower alkyl group.

Abstract: A process for the production of a monoazo lake coated with a water-insoluble metal salt of rosin, which comprises the steps of:(a) adjusting a mixed solution containing a monoazo dye having a water-soluble group and an alkali metal or ammonium salt of rosin to pH of 8 to 12, and adding an stoichiometeric amount of a metal salt of at least one metal for insolubilizing rosin selected from the group consisting of zinc, aluminum, copper and manganese to form a water-insoluble rosin metal salt, and(b) adjusting the resultant mixture containing the water-insoluble rosin metal salt to pH of 9 to 12 and adding a metal salt of at least one metal for forming a lake of a monoazo dye selected from the group consisting of calcium, barium and strontium to form a monoazo lake.

Abstract: Azo dye salts corresponding to formula I are suitable as masking couplers. ##STR1## In Formula I, A denotes an optionally substituted aryl group;CC denotes a group optionally carrying a ballast group and capable of coupling under the conditions of photographic color development to produce a dye preferably a cyan dye (color coupler residue);L denotes a linking member which is attached at the coupling position of the color coupler residue by an oxygen, sulphur or nitrogen atom;Z denotes a group conferring solubility in alkalies;R denotes NH--CO--R.sup.1, NH--SO.sub.2 --R.sup.1, COOR.sup.2 or NR.sup.1 --R.sup.2 ;R.sup.1 denotes an optionally substituted alkyl or aryl group;R.sup.2 denotes H or a group such as R.sup.1 ;[M.sup..sym. ] denotes a mixture of organic and inorganic cations optionally containing protons, in which the proportion of organic cation amounts to at least 1/2 mol per mol of dye;m stands for 0, 1 or 2; andn stands for 1, 2, 3 or 4; n.gtoreq.m.

Abstract: Compounds of the formula ##STR1## and salts thereof, wherein R.sub.1 is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,R.sub.2 is hydrogen, halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, (C.sub.1-4 alkyl)carbonylamino or --NHCONH.sub.2, andW is -NR.sub.3 -B.sub.1 -NR.sub.3 -, ##STR2## wherein B.sub.1 is linear or branched C.sub.2-6 alkylene, linear or branched C.sub.2-6 alkylene interrupted by --O-- or --NR.sub.3 -- or linear or branched C.sub.3-6 alkylene monosubstituted or disubstituted by hydroxy, with the proviso that the hydroxy groups of any linear or branched C.sub.3-6 alkylene disubstituted by hydroxy are bound to different carbon atoms, andR.sub.4 is linear or branched C.sub.2-4 alkylene,whereineach R.sub.3 is independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl substituted by hydroxy, halo, cyano, sulfo, sulfato or carboxy,with the provisos that the --N.dbd.

Abstract: Thiopheneazo dyes of the formula ##STR1## where R.sup.1 is cyano, C.sub.1 -C.sub.4 -alkoxycarbonyl, phenylazo, phenylsulfonyl, formyl or the radical ##STR2## where R.sup.7 and R.sup.8 are independently of the other cyano or C.sub.1 -C.sub.4 -alkoxycarbonyl,R.sup.2 is C.sub.1 -C.sub.4 -alkyl, phenyl, halogen, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxycarbonyl, or R.sup.1 and R.sup.2 together are the radical (CH.sub.2).sub.3 --CO, which may be substituted by 1 or 2 methyl groups and whose carbonyl group is bonded to the thiophene ring in the ortho position relative to the sulfur atom,R.sup.3 is cyano or C.sub.1 -C.sub.4 -alkoxycarbonyl,R.sup.4 is C.sub.1 -C.sub.8 -alkyl, cyclohexyl, phenoxy-C.sub.1 -C.sub.4 -alkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted thienyl,R.sup.5 is C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.7 -alkyl whose alkyl chain is interrupted by 1 or 2 oxygen atoms, or C.sub.1 -C.sub.4 -alkoxy andR.sup.6 is cyanoethyl, phenylethyl or C.sub.3 -C.sub.

Abstract: The present invention relates to a chromogenic benzoisothiazolone polymer derivative for measuring the presence or appearance of thiols in an aqueous system.

Abstract: This invention is that of an azo pigment composition containing about 1 to 10 percent by weight of a nonionic alkyl polyglycoside dispersing agent. The polyglycosides useful in the invention have the general formulae:C.sub.n H.sub.2n+1 M (C.sub.6 H.sub.10 O.sub.5).sub.x Hwherein: M is an oxygen, sulfur, nitrogen phosphorous or silicon atom; n is an integer from 8 to 18, preferably 8 to 11 and X represents the number average degree of polymerization having a numerical value from about 1 to about 2. These azo pigment compositions are prepared by conducting the azo pigment coupling reaction in the presence of said alkyl polyglycoside. The resulting pigment exhibit superior application properties in water based ink systems.

Abstract: Black compounds of Formula (1) having enhanced solubility in polar organic liquids which are useful as ink colorants in conventional and hot melt ink-jet printing and automatic identification, as black colorants for toners and thermal wax transfer sheets and as charge control agents for electrophotographic toners; ##STR1## wherein R is H, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, aryl, C.sub.4-8 cycloalkyl, --CN, --NO.sub.2, halogen, --COOR.sup.1, --OH, --SH or --SO.sub.3 A;R.sup.1 is A, C.sub.1-4 -alkyl or aryl;R.sup.2 is --NH.sub.2, --OH or --SO.sub.3 A;R.sup.3 is --NH.sub.2 or --OH;R.sup.4 is --NH.sub.2, --OH, --SO.sub.3 A or H; andA is NQ.sub.4 in which at least one Q is a branched chain fatty C.sub.6-20 -aliphatic group.