Matches 1 - 50 out of 98 1 2 >
Match Document Document Title
6927284 1:2 metal complex dyes, their compositions, their production and their use  
1:2-metal complex dyes of the formula wherein the symbols R 1 , R 1 ′, R 2 , R 2 ′, R 3 , R 3 ′, Y, Z, n, n′, Me, M and (Kat) + are defined as in the Claims, mixtures thereof, their...
6764524 1:2 chromium complex dyes, their production and use  
Asymmetrical 1:2 chromium complex dyes of formula (I), wherein X signifies —SO 3 M, —SO 2 NR 1 R 2 or chlorine, Y signifies hydrogen, —SO 3 M or chlorine, R 1 signifies hydrogen, C 1-6...
6132894 1:2 Iron azo-dyestuff complexes  
A compound of formula (I) or a mixture thereof ##STR1## The compounds are useful as solvent dyestuffs and exhibit high solubility in alcoholic solvents, e.g. ethanol.
5962657 Complex polymethine dyes and their use  
A cyanine dye complex of formula I ##STR1## consisting of a cyanine dye and a chromium or cobalt metal azo ligand complex is particularly useful in a process for optically recording, storing or...
5853431 1:2 Chromium complexes, their production and use  
Compounds of formula (I) ##STR1## wherein R 1 is H or SO 3 M, ##STR2## M is hydrogen or a non-chromophoric cation and X + is hydrogen or a non-chromophoric cation, are useful as dyes for...
5484900 1:2 chromium complex dyestuffs  
1:2 chromium complex dyestuffs of the formula (I) ##STR1## in which A, B, R 1 , R 2 , R 3 , R 4 , p, m, n, n' and Cat (+) have the meaning given in the description, are suitable for dyeing and...
5401834 Asymmetrical 1:2 chromium and cobalt complexes of further substituted 6- or 7-amino-1-hydroxy-2-(nitro-phenylazo)-3-sulfonapthalenes  
Complexes of the formula ##STR1## which are in free acid or salt form, and mixtures thereof, wherein each of R 1 and R 3 is independently hydrogen, C 1 -4 alkyl or C 1 -4 alkyl monosubstituted...
5283325 1:2 chromium and cobalt complexes of monoazo compounds having further unsubstituted or substituted nitro-2-hydroxyphenyl diazo component radicals and 6- or 7-acyl-amino-1-hydroxy-3-sulfonaphthalene coupling component radicals  
1:2 metal complexes of the formula ##STR1## wherein each of R 1 and R 3 is independently hydrogen or nitro, with the proviso that when a ring has two nitro groups, they are meta to each other, ...
5250671 Unsymmetrical 1:2 chromium complex dyestuffs  
The novel unsymmetrical 1:2 chromium complex dyestuffs of the formula ##STR1## in which the substituents R 1 , R 2 , R 3 , n and Cat (+) have the meaning given in the description, are highly...
5229502 Preparation of 1:2 chromium complexes one sulfo substituted and one sulfonamido or the like substituted azo dyes  
A process is described for the preparation of pure, asymmetric 1:2 chromium complex dyes containing at least two groups which impart solubility in water, which process comprises reacting a mixture...
4997917 Preparation of 1:2 chromium complex azo dyes asymmetrically substituted with solubilizing  
The invention relates to a process for the preparation of asymmetrical 1:2 chromium complex dyes of not less than 90% purity and containing at least one water-solubilizing group, which process...
4996303 Preparation of 1:2 metal complex dyes by coupling in the presence of a metal donor in an inert gas atmosphere  
The invention relates to a process for the preparation of 1:2 metal complex azo dyes of formula ##STR1## wherein each X is hydrogen, halogen or nitro, K and K' are each independently of the other...
4977249 Metal of hydroxy-phenylaze and hydroxy-naphthylazo compounds as near-red absorbers  
A metal complex compound having the formula: ##STR1## wherein each of X 1 and X 2 which may be the same or different, is a nitro group, a halogen atom, a phenylazo group (inclusive of a...
4960870 Heavy metal complex azo dyes containing a benzothiophene-1,1-dioxide, 2,1-benzothiazine-2,2-dioxide, 1,4-benzothiazine-1,1-dioxide or thienopyridine-1,1-dioxide coupling component  
The heavy metal complex dyes of azo or azomethine dyes of the formula ##STR1## in which D is the radical of a dizao component of the benzene, naphthalene or heterocyclic series, K--OH is the...
4904767 Asymmetric 1:2-chrome complexes of benzene-azo-naphthalene/naphthalene-azo-naphthalene acid dyes for leather  
Asymmetric 1:2-chrome complex dyes of the formula: ##STR1## wherein A is the radical of 1-hydroxynaphthalene or 2-hydroxynaphthalene, R 1 is hydrogen, chlorine or methyl, R 2 is hydrogen,...
4874849 Asymmetric 1:2-chromium complex dyes containing two azo dyes, one containing an acetoacetanilide coupling component  
Dyes suitable for dyeing wool, polyamide and leather in orange, brown or olive-brown shades are disclosed, the dyes having the formula ##STR1## wherein A and D are each independently of the other a...
4820309 1:2-chromium complex dyes for tanned leather  
Complexes of the formula ##STR1## wherein each R 1 is independently (a) the radical of a coupling component of the active methylene non-cyclic or homocyclic series, (b) the radical of a coupling...
4804386 Chromium complex dye for polyamides or leather  
A chromium complex dye of the formula ##STR1## and salts thereof are used for dyeing polyamides or leather.
4710198 1:2 chromium or cobalt metal complex dyes and use thereof for dyeing leather  
A process of dyeing polyamide-containing material is disclosed using dyes of the following formula: ##STR1## wherein Me is cobalt or chromium, Ka ♁ is a cation, p is 0 or 1, R and R' are...
4665162 1:1 and 1:2 metal complexes of sulfo group-free azo compound having on average at least 1.3 basic water-solubilizing groups  
Metal-free azo compounds of the formula ##STR1## wherein Ra is an aromatic group or an active methylene coupling component radical as defined in the specification, R t is an arylazo group or a...
4663441 Asymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and a naphtholazosulphonaphthol  
Compounds of the formula I ##STR1## where K ♁ is a cation, R is methyl or is phenyl which is unsubstituted or substituted by chlorine, bromine, methyl, methoxy or ethoxy, R 1 is hydrogen,...
4661587 Bis 1:2 chromium complexes of disazo and azo or azomethine dyes  
Disclosed are chrome complex dyes of the formula ##STR1## and of the formula ##STR2## wherein Z and Z' independently of one another are each nitrogen or --CH--; X and X' independently of one...
4625017 Metal complexes of azo dyes containing a 2-(P-N-aceloacetylaminophenyl) benzothiozole moiety  
Metallizable azo dyes of the formula I ##STR1## wherein A is the radical of a diazo component of the benzene or naphthalene series, which diazo component contains in the o-position with respect to...
4624907 Electrophotographic toner containing metal complex  
An electrophotographic toner capable of being electrified negatively comprising: (a) a binder resin; and (b) a charge-controlling and coloring agent comprising at least one 2:1 type metal...
4594410 Azo compounds containing both sulfo groups and basic or cationic groups which compounds are in metal-free or 1:1 metal complex form  
Azo dyes of the formula ##STR1## and external salts thereof, wherein F is the residue of a monoazo or disazo compound in 1:1 metal complex form or of a trisazo, disazoazoxy or tetrakisazo compound...
4582896 1:2-metal complex dyes containing one atom of chromium or cobalt and two azo dyes each formed by coupling two diazo compounds to resorcinol  
Dyes of the formula ##STR1## in which Me is cobalt or chromium, A is a diazo component of a benzene or naphthalene which carries a hydroxyl or carboxyl group in the o-position relative to the azo...
4560747 Process for producing granulates of water-soluble dyes by fluidized bed granulation  
A process for producing granulates of water-soluble dyes by means of fluidized bed granulation, wherein there is added a granulating auxiliary having a softening point or softening range between...
4560744 Azo dye 2:1-chromium complexes  
Compounds which in the form of the free acids correspond to the formula ##STR1## where A is a radical of a diazo component or of an amine, B is a radical of a coupling component or of an...
4553976 Process for dyeing or printing polyamide fibres  
The invention describes a process for dyeing or printing natural or synthetic polyamide fibre material by a rapid fixation method, which comprises the use of dyes or mixtures of dyes of the...
4544739 Fibre-reactive chromium complex Azo-azomethine dyes  
Chromium complex dyes which, in the form of the free acid, have the formula ##STR1## wherein Z is hydrogen, nitro, chlorine or naphthylazo or phenylazo, wherein naphthyl or phenyl is unsubstituted...
4537955 Unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and contains no sulfonamido or amino groups  
An unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and is free of sulfonamido and amino groups and which, in the form of the free acid has...
4502865 Fibre-reactive chromium complex dyes, process for their manufacture and use thereof to dye cellulose or wool  
Novel chromium complex dyes are disclosed which have the formula ##STR1## wherein S 1 represents a hydrogen or halogen atom, a nitro group, a sulpho group, an alkyl or alkoxy radical, an acylamino...
4432898 Sulfo-substituted fibre-reactive 1:2-chromium complex azo dyes  
Chromium complex dyes are disclosed which have the formula ##STR1## wherein S 1 represents a hydrogen or halogen atom, a nitro group, a sulpho group, an alkyl or alkoxy radical, an acylamino or...
4416815 Fiber-reactive unsymmetrical 1:2 chromium complex azo dyes  
Chromium complex dyes which, in the form of the free acid, have the formula ##STR1## wherein Z is hydrogen, nitro, chlorine, or an arylazo group, Q is a nitrogen atom or the CH-- group, A is the...
4396544 Asymmetric 1:2 chromium complexes of monoazo compounds  
1:2 Chromium complexes of the formula, ##STR1## in which R 1 is hydrogen, chlorine, bromine, nitro (being meta to the first nitro group), C 1 -4 alkyl or C 1 -4 alkoxy, R 2 is hydrogen or...
4370268 Reactive dyestuffs  
Reactive dyestuffs of the formula ##STR1## wherein D, R, R 1 , R 2 , n, p, R 3 , R 4 and m have the meaning indicated in the description, and their use for dyeing and printing various materials,...
4340536 Chrome-complex dyes and the production and use thereof  
Chrome-complex dyes for dyeing natural and synthetic polyamide materials, which dyes, in the form of the free acid, correspond to the formula ##STR1## wherein X, W, R 1 , A, q, p, B, Z, D, Y and n...
4328220 Non-dusty pulverulent and granulated organic dye preparations  
Non-dusting pulverulent or granulated dye preparations are provided which contain (1) an organic dye, (2) a non-ionic compound having a hydrotropic action and at least one of the components (3) or...
4322529 Tertiary-alkylamine salts of azine dyestuffs  
New dyestuff salts of the formula ##STR1## wherein A denotes the radical of an azine dyestuff, R, R 1 and R 2 denote alkyl radicals with a total of 10-24 carbon atoms and n denotes the number...
4315854 Chromium and cobalt complex amino hydroxy azomethine dyes  
1:2 Metal complex dyes of azomethines of the formula ##STR1## wherein R is hydrogen, unsubstituted or substituted alkyl, aralkyl, aryl, alkylsulfonyl or arylsulfonyl, A is the radical of an...
4219472 5-Aminomethyl-2-amino naphthyl-(1) azo dyes  
The invention relates to novel azo dyes of the formula ##STR1## wherein R 1 represents hydrogen, alkyl of 1 to 8 carbon atoms or the phenyl radical, R 2 represents hydrogen, an acyl radical or a...
4212802 1:2 Chromium complexes of disazo compounds  
Complexes of the formula ##STR1## in which each of X 1 and X 2 , independently, is --COO-- or --O--, each of B 1 and B 2 , independently, is the radical of a coupling component of the benzene...
4180502 Manufacture of concentrated solutions, having a low salt content, of cobalt and chromium 1:2 complex dyes which are free from sulfonic acid groups  
A process for the manufacture of concentrated solutions, having a low salt content, of o,o'-dihydroxy-or o,o'-dihydroxycarboxy-cobalt and -chrominum 1:2 complex dyes which are free from sulfonic...
4165314 Mixtures of 1:2 cobalt complexes of monoazo compounds having an acetoacetanilide coupling component radical  
Mixtures of symmetrical and asymmetrical 1:2 cobalt complexes of compounds of the formulae ##STR1## wherein, EACH R 1 , independently, is hydrogen or (C 1 -4)alkyl, and Each R 2 and R 3 ,...
4159983 Pure and substantially pure asymmetric 1:2 cobalt complexes of monoazo compounds  
Pure and substantially pure asymmetric 1:2 cobalt complexes of the formula, ##STR1## and mixtures of such complexes, in which X is hydrogen or nitro, either, R 1 and R 2 , independently, are...
4155903 Asymmetrical 1:2 cobalt complexes of certain substituted phenylazonaphthalenes  
Disclosed are homogeneous complexes of the formula ##STR1## wherein R 1 is hydrogen, alkyl, phenyl or substituted phenyl, ##STR2## WHEREIN ONE Q is hydrogen and the other is sulfo, and N IS 0 OR 1...
4085097 Process for the manufacture of chromium complexes from metallizable azo or azo methine dyes  
A process is described for the manufacture of chromium complexes of metallizable dyes in the form of solid dyestuff powders of low salt to salt-free content, or of concentrated solutions of low...
4053462 Unsymmetrical phenyl azo naphthyl chromium complex dyes  
Chromium complex dyes which, in the form of their free acid, have the formula ##STR1## wherein one X represents the sulphonic acid group and the other X represents the nitro group, Y is a sulfone...
4051116 Assymmetrical 1:2 cobalt complexes of metallizable monoazo compounds having one sulfo group per complex  
Complexes of the formula ##STR1## wherein R 1 is hydrocarbyl or substituted hydrocarbyl, EACH OF R 2 and R 3 is independently hydrogen, lower alkyl or substituted lower alkyl, Each of X 1 ...
4045424 Salt of a sulfonic acid substituted 1:2 metal complex dye with a basic dye and an amine  
A dye salt of the formula ##STR1## WHEREIN Me is cobalt or chromium, X is --O-- or --COO--, Y and Y' each is hydrogen, chlorine or nitro, n is 1 or 2, a + b = n + 1 and neither a nor b is zero, the...
Matches 1 - 50 out of 98 1 2 >