Patents
Sitemap › C09 - Dyes; Paints; Polishes; Natural resins; Adhesives; Compositions not otherwise provided for; Applications of materials not otherwise provided for › C09B - Organic dyes or closely-related compounds for producing dyes; Mordants; Lakes › C09B 43 - Preparation of azo dyes from other azo compounds
Patents for C09B 43 - Preparation of azo dyes from other azo compounds (1,452)
12/1979
12/18/1979US4179436 Monoazodyestuffs containing diphenamine and phenoxy components
12/18/1979CA1068263A1 Disazo dyestuffs
12/11/1979CA1067896A1 Water-soluble disazo dyestuffs
11/1979
11/20/1979CA1066460A1 Mixture of water-insoluble monoazo dyestuffs for colouring textile materials consisting at least partly of linear, aromatic polyesters
11/13/1979CA1066271A1 Disazo compounds
10/1979
10/30/1979CA1065308A1 Stable modification of a disazo dyestuff
10/09/1979CA1064022A1 Water-soluble disazo dyestuffs, a process for their preparation and their use for dyeing synthetic and natural polyamides
10/02/1979CA1063602A1 Disperse dyes
09/1979
09/18/1979CA1062702A1 Disazo dyes
08/1979
08/28/1979US4166059 Alkali-fast disazo disulfimide dyes
08/21/1979US4165297 Catalyst complex for the preparation of cyano-azo dyestuffs
08/07/1979CA1059998A1 Water-soluble disazo dyestuffs, process for their preparation and their use
07/1979
07/31/1979US4163013 Diphenylamine-azo-hydrocarbylsulfonylphenyl dyestuffs
07/10/1979CA1058166A1 Disazo pigments and a process for their manufacture
07/10/1979CA1058165A1 Disazopigments
07/10/1979CA1058164A1 Process for the preparation of cyanoazo dyestuffs
05/1979
05/30/1979EP0002041A1 Processes for synthesizing bisazomethine-bisazo pigments
05/22/1979US4156086 Intermediates for azo dyes
05/02/1979EP0001731A1 Azo-pyrazolium-dyestuffs, their preparation, their use and fibres dyed therewith
04/1979
04/17/1979US4149892 Color diffusion transfer photographic elements
04/17/1979US4149851 Concentrated aqueous dye compositions containing a low molecular weight amide
04/10/1979US4148791 Disperse dyes
04/10/1979CA1052375A1 Disperse mono- and bisazo dyes derived from 2-amino-4,5-dicyanoimidazole
03/1979
03/20/1979US4145342 Nitro-diphenylamino-azo-phenyl dyestuffs containing a polyalkyeneoxy group
03/20/1979US4145114 Liquid crystals, azo dyes, electrooptical device
03/06/1979US4143034 Lightfast
02/1979
02/27/1979US4141889 Dyes for cellulosic substrates such as cotton and paper
02/20/1979CA1049002A1 Disperse monoazo navy-blue dyes
02/13/1979US4139389 Color photography
01/1979
01/23/1979CA1047030A1 Yellow azopyrazolone dye releasing redox compounds for photographic color transfer
12/1978
12/26/1978CA1045121A1 Disazo pigment and process for its manufacture
11/1978
11/28/1978US4127567 Bis-(1-substituted phenylazo-2-hydroxynaphthalene-3-carboxamido)naphthalenes
11/21/1978US4126610 Process for the preparation of cyano azo dyestuffs
11/07/1978US4124582 Process for the purification of azo pigments by stirring an aqueous, alkaline suspension of crude pigment
11/07/1978CA1042000A1 Azo dyes
10/1978
10/31/1978CA1041487A1 Process for the preparation of azo dyestuffs containing nitrile groups
10/10/1978US4119623 Amide fibers
10/03/1978US4118232 Photographic material containing sulphonic acid group containing disazo dyestuffs
09/1978
09/26/1978US4116953 Azo dyes
09/26/1978CA1039271A1 Azo dyestuffs
09/19/1978US4115055 Mixture of water-insoluble monoazo dyestuffs for coloring textile materials consisting at least partly of linear, aromatic polyesters
08/1978
08/08/1978US4105655 Phenyl-azo-anilino dyestuff
08/08/1978US4105653 Heteryl-azo-phenyl disperse dyestuffs containing a z-substituted benzolyloxyalkyl radical, wherein z is 2-cyanovinyl 2-cyanoethyl or 2-chloro-2-cyanoethyl
07/1978
07/18/1978US4101542 Process for the selective destruction, by reduction, of p-coupled products of the 1-naphthol series
07/11/1978US4100157 β-Crystalline form of the pigment obtained by coupling diazotized 1-aminobenzene-2-carboxylic acid methyl ester with 2,3-oxynaphthoic acid
07/11/1978US4100156 Chlorine-containing disaza pigments
07/04/1978US4098570 Process for dyeing or printing polyamide material
06/1978
06/27/1978US4097475 For polyesters and blends with cellulose
06/27/1978US4097120 Liquid crystalline compounds and mixtures
06/20/1978US4096139 Azocoumarinic-type dyes for the disperse dyeing of textile fabrics
06/20/1978US4095943 Reacting halide salt with the acid in the presence of an epoxide compound
05/1978
05/30/1978US4092103 Process for dyeing nylon with lower alkyl ether-containing diazo dyes and product thereof
05/23/1978US4091021 Azo dyestuffs
04/1978
04/18/1978US4085099 Azo dyes
04/11/1978US4084053 Polycyclic compounds
04/11/1978US4083846 Free from sulphonic acid groups
04/11/1978US4083844 Phenylazo orthocyano phenylazo or orthocyano phenylazo phenylazo containing dyestuffs
04/11/1978US4083843 Yellow dye for nylon, polyacrylonitrile, wool and silk
04/11/1978US4083840 Disazo dyes having a 6-amino or substituted triazinylamino-1-hydroxynaphthalene-3-sulfonic acid coupling component radical
04/11/1978US4083688 Disazo pyrazolyl dyed polyester fibers
03/1978
03/28/1978US4081438 Anionic azo dyes having a 3-dibenzofuranyl diazo component radical optionally having A2-or 8-sulfo group
03/28/1978US4081436 Process for dry quaternization of azo compounds
03/14/1978US4079052 Diazopigments containing pyridine derivatives
03/07/1978US4077767 Process for the preparation of concentrated solutions of urea compounds
11/1977
11/29/1977US4060544 N-2-[N-(keto-tert-alkyl carbamyl)alkyl]phenylamines
11/29/1977US4060521 Polyamide
10/1977
10/25/1977US4055560 Sulfophenyl-azo-phenyl-azo-(4-hydroxyalkoxyphenyl) compounds
10/25/1977US4055556 Pigments
10/18/1977US4054560 1-(4-Acyloxyalkylaminonaphthylazo)-4-nitrobenzene disperse dyes
10/11/1977US4053464 Disazo pigments containing ether substituted alkoxy carbonyl groups
10/04/1977US4052378 Red pigment obtained by coupling diazotized 4-aminonaphthalimide with 2,6-dihydroxy-3-cyano-4-methylpyridine
10/04/1977US4052377 Pigments
10/04/1977US4052371 Azo pigment or dye having a naphthyl-quinazalone coupling component
09/1977
09/27/1977US4051123 Sulfonic-acid-group containing disazo dyestuffs
09/27/1977US4051122 Disazo pigments containing tetracarboxylic acid ester groups
09/27/1977US4051121 Azo pigments having two 2-halo-5-trifluoromethylphenyl diazo component radicals and a bis-(2-hydroxynaphthoyl-3-amino)-2,5-dihalobenzene coupling component radical
09/20/1977US4049642 Phenyl-azo-naphthyl dyes having a 2-acyloxy, alkoxy or hydroxy-1-arylethylamino group in the 4-position of the naphthalene ring
09/20/1977US4049641 Dyeing polyamides, wool, and silk
09/20/1977US4049640 Substituted bisnaphthylazo diphenyl ureido complement inhibitors
09/20/1977US4049375 Process for dyeing synthetic fibers formed from aromatic polyesters and new monoazo dyestuffs useful for such dyeing
09/13/1977US4048153 Polyamide fibers
09/06/1977US4046757 2-Optionally substituted alkyl-and phenylsulfonylphenyl-azo-phenyl dyes and a process for their synthesis
09/06/1977US4046755 Cellulose ethers, polyamides, polyurethanes, acrylics
08/1977
08/30/1977US4045430 Conversion of o-halogenoazo compound to o-cyanoazo compound by reaction with a zinc cyanide
08/30/1977US4045429 Treatment of ulcerative colitis
08/23/1977US4043999 Methyl or methoxy substituted iminoisoindolinone pigments
08/16/1977US4042635 Spiro compounds
08/16/1977US4042580 Phenylazophenyl dyes having an alkoxyacylamino group on the coupling component radical
08/16/1977US4042578 Azo dyes having 2,6-diaminopyridine derivatives as coupling components
08/09/1977US4041025 P-Aminoazo disperse dyes
08/02/1977US4039524 Keto-amido containing phenylazo benzothiazole dyestuffs
07/1977
07/26/1977US4038269 2'-alkoxyacylamino-4'-alkylamino-4-nitro-1,1'-azobenzene disperse dyes
07/26/1977US4038268 Diazotization, coupling
07/12/1977US4035401 Intermediates for photographic dyes
05/1977
05/17/1977US4024126 Fastness properties
05/17/1977US4023924 Concentrated aqueous dye compositions containing a low molecular weight amide and their use for dyeing paper
05/10/1977US4022763 Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs
04/1977
04/19/1977US4018756 Acrylonitrile polymers, polyamides, polyesters
03/1977
03/22/1977US4013636 Disperse dyes for hydrophobic high molecular weight polymers
03/22/1977US4013634 Tetraazo direct urea-derived dye having a core of h-acid, k-acid or s-acid
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