| Patents for C09B 35 - Disazo or polyazo dyes of the type a d b prepared by diazotising and coupling (1,497) |
|---|
| 12/18/1979 | CA1068262A1 Disazo compounds, process for preparing them and their use as pigments |
| 11/14/1979 | EP0005222A2 Salts of sulphonated azo dyes and their use |
| 10/02/1979 | US4169832 Disazo and trisazo intermediates for polyazo dyes containing a stilbenyl or 2,2'-disulfostilbenyl radical |
| 10/02/1979 | US4169831 Water-soluble tetrakisazo dyestuffs derived from 4,4'-diaminoazobenzene |
| 10/02/1979 | US4169830 Diamino-benzanilide disazo coloring agents |
| 09/25/1979 | US4169091 Symmetrical and asymmetrical disazo compounds containing a bis-(nitro-aryloxy)alkane middle component |
| 09/18/1979 | CA1062702A1 Disazo dyes |
| 08/28/1979 | US4165967 Process for dyeing human hair with diazo salts and coupling components |
| 07/24/1979 | CA1059119A1 Azo pigments and process for their manufacture |
| 07/10/1979 | CA1058165A1 Disazopigments |
| 05/30/1979 | EP0002104A1 Pleochroic dyes suitable for use in solution with liquid crystal materials for electro-optic device applications |
| 04/17/1979 | US4149892 Color diffusion transfer photographic elements |
| 04/17/1979 | US4149851 Concentrated aqueous dye compositions containing a low molecular weight amide |
| 04/10/1979 | CA1052374A1 Trisazo dyes |
| 03/20/1979 | US4145114 Liquid crystals, azo dyes, electrooptical device |
| 03/13/1979 | US4144231 Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component |
| 03/13/1979 | US4144230 Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component |
| 03/06/1979 | US4143034 Lightfast |
| 03/06/1979 | US4143033 Water-soluble disazo dyestuffs containing a 2-phenyl-benzimidazolyl,-benzoxazolyl or-benzthiazolyl middle component |
| 02/27/1979 | US4141889 Dyes for cellulosic substrates such as cotton and paper |
| 02/27/1979 | CA1049507A1 Polyazo dyestuffs, their production and their use |
| 02/20/1979 | CA1048999A1 Soluble trisazo dyestuffs and their production and use |
| 01/30/1979 | US4137228 Water-soluble, copper containing trisazo compounds having a 2-(4'phenylene)-benzimidazoyl-(5 or 6),-benzoxazolyl-(5), or -benzthiazolyl-(5) component |
| 01/30/1979 | US4137193 Utilization of dyes for liquid crystal displays |
| 12/26/1978 | CA1045120A1 Disazo pigments and a process for their manufacture |
| 10/24/1978 | CA1041091A1 Azo compounds |
| 10/03/1978 | US4118232 Photographic material containing sulphonic acid group containing disazo dyestuffs |
| 10/03/1978 | US4118186 Benzenesulfonamides |
| 10/03/1978 | US4118182 For dyeing cellulose or leather |
| 10/03/1978 | CA1039714A1 Triazo dyestuff and process for preparing same |
| 10/03/1978 | CA1039713A1 Water-soluble triazo dyestuff derived from 4,4,-diaminobenzanilide |
| 10/03/1978 | CA1039648A1 Visual method for the detection of syphilis and other treponemal diseases |
| 09/19/1978 | US4115380 Process for the preparation of dihydroxyphenylazophenylazophenyl dyestuffs |
| 09/19/1978 | CA1038863A1 Water-soluble diazo dyestuffs derived from 4,4'-diamino-benzanilide |
| 08/22/1978 | CA1037030A1 Water-soluble diazo dyestuff derived from 4,4'-diaminobenzanilide |
| 08/22/1978 | CA1037029A1 Water-soluble azoic dyestuffs derived from 4-4'-diaminobenzanilide |
| 07/18/1978 | US4101542 Process for the selective destruction, by reduction, of p-coupled products of the 1-naphthol series |
| 07/04/1978 | US4098570 Process for dyeing or printing polyamide material |
| 07/04/1978 | US4098569 Stable concentrated liquid preparation of paper dyes of the disazo class |
| 06/27/1978 | US4097476 Trisazo dyes having a 2,7-(1-amino-3,6-or 4,6-disulfo-8-hydroxynaphthylene) radical |
| 06/06/1978 | US4093613 Trisazo pigments containing two barbituric acid coupling components |
| 05/16/1978 | US4089851 Fibers |
| 05/02/1978 | US4087245 Alkali metal or ammonium salt of dye reacted with hydroxy-, polyhydroxy- or polyalkoxy-alkylamine and an acid or salt of the amine |
| 05/02/1978 | US4087244 Dyeing and printing basic dyeable textile substrates with becationic disazo and trisazo dyes having optionally further substituted 6-hydroxy-4-methyl-3-N-pyridiniumpyridone-2-coupling component radicals |
| 04/11/1978 | US4083845 Dyeing cellulose fiber |
| 04/11/1978 | US4083681 Compositions of metal complexes of disazo acid dyes stabilized with amino ethers |
| 04/04/1978 | US4082741 Fastness to heat, light, migration, chemicals |
| 03/28/1978 | US4081437 Water soluble polyazo dyestuffs |
| 03/14/1978 | US4079052 Diazopigments containing pyridine derivatives |
| 02/21/1978 | US4075198 Reducting azoxybenzenes with sodium hydrosulfide |
| 02/21/1978 | US4074966 Stable concentrated liquid preparation of a paper dye of the disazo class |
| 12/27/1977 | US4065254 Diazo dyes, leather, cotton, wool |
| 12/06/1977 | US4061627 Bis-substituted naphthalene-azo phenyleneazo-stilbene-disulfonic and naphthalene-sulfonic acid |
| 11/15/1977 | US4058516 Sulfo group-containing azo compounds having a tetrazo component radical derived from an optionally substituted 3,8-diaminodibenzofuran |
| 10/25/1977 | US4055558 Tetrakisazo dyestuffs |
| 10/04/1977 | US4052380 Trisazo dyes containing two different aminonaphtholsulphonic acid coupler components |
| 10/04/1977 | US4052375 Water-soluble trisazosulfonated dyestuff derived from 2-aminophenol-4-sulfonic acid, resorcinol, 4,4'-diaminobenzanilide and m-aminophenol |
| 10/04/1977 | US4052210 Bisazo naphthol |
| 09/27/1977 | US4051123 Sulfonic-acid-group containing disazo dyestuffs |
| 09/13/1977 | US4048152 Modified form of disazo pigment CI 20040 |
| 09/06/1977 | US4046502 Basic disazo dyes having two 2-hydroxy-3-substituted carbamoylnaphthyl-1-azophenyl groups for dyeing paper |
| 08/16/1977 | US4042579 Liquid disazo dyestuffs derived from diphenylsulphide |
| 08/16/1977 | US4042577 Azo dyes having one or two triazinyl-or pyrimidyl-acetic acid ester or amide coupling component radicals |
| 07/05/1977 | US4033946 Tetrakisazo dyestuffs |
| 07/05/1977 | US4033945 Water-soluble trisazo 8-amino-naphthol-1 dyes |
| 05/17/1977 | US4024125 Dis-azo pigments deriving from bis-diazotized diamino-2-phenyl-benzazolones |
| 05/17/1977 | US4023924 Concentrated aqueous dye compositions containing a low molecular weight amide and their use for dyeing paper |
| 05/10/1977 | US4022763 Sulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffs |
| 04/12/1977 | US4017478 Water-soluble azo dyes having a 2-acetoacetamidofluorenyl coupling component radical |
| 04/05/1977 | US4015937 Process for detecting the completion of the sterilizing treatment using a color changing indicator composition |
| 03/22/1977 | US4013634 Tetraazo direct urea-derived dye having a core of h-acid, k-acid or s-acid |
| 02/22/1977 | US4009156 Hydroxynaphthalene trisazo dyestuffs |
| 02/15/1977 | US4008215 Sulfonic-acid substituted disazo dyestuffs |
| 02/01/1977 | US4006131 Anionic disazo dyes having a 2,2'-dihalodiphenyl tetrazo component radical |
| 02/01/1977 | US4006130 Cotton, regenerated cellulose, leather, paper |
| 01/25/1977 | US4005068 Disazo compounds from diphenylene sulfones and acetoacetylbenzimidazolones |
| 12/21/1976 | US3998645 Thermoplastic traffic paint |
| 11/16/1976 | US3992143 Disazo and triazo dyestuffs |
| 09/28/1976 | US3983101 Water-soluble polyazo compound derived from 4-4-diaminobenzanilide |
| 09/28/1976 | US3982946 Bis-azo pyrazolone type dye developer and light-sensitive material |
| 09/14/1976 | US3980635 Novel form of the disazo pigment from bisdiazotized 3,3'-dichlorobenzidine and 1-(p-tolyl)-3-methylpyrazol-5-one |
| 09/07/1976 | US3979378 Water-soluble azo dyes having a substituted 2-hydroxypyridone (6) coupling component |
| 08/31/1976 | US3977870 Organic dyestuff layer |
| 08/10/1976 | US3974136 Modified form of a disazo pigment |
| 07/27/1976 | US3971741 Dispersion pigments |
| 07/13/1976 | US3969339 Water-soluble pentakis-azo dyestuffs derived from 4,4'-diaminoazobenzene |
| 06/29/1976 | US3966703 Asymmetrical frisazo dyestuffs derived from diazotized 2,7-diamino-carbazole |
| 06/22/1976 | US3965087 Trisazo dye containing a diphenylenesulfone structure |
| 06/01/1976 | US3960831 Disazo dyestuffs containing amino azo benzene sulfonic acid and phenolic or naphtholic couplers |
| 06/01/1976 | US3960480 Dyeing or printing |
| 05/25/1976 | US3959250 Textile printing lacquers, synthetics |
| 04/20/1976 | US3951941 Trisazo compounds containing a diphenyl-tetrazinyl component |
| 04/06/1976 | US3949065 Composition and method for the detection of syphilis |
| 03/02/1976 | US3941560 Trisazo polyester materials |
| 01/13/1976 | US3932122 Azo compounds, their manufacture and use |
| 01/06/1976 | US3931142 Heterocyclic containing disazo compounds |
| 01/06/1976 | US3930793 Continuous, disazo dyes |