| Patents for C09B 7 - Indigoid dyes (453) |
|---|
| 11/27/2001 | US6323267 Isoxindigos useful as colorants and preparation thereof |
| 11/15/2001 | WO2001085851A1 Coloring composition |
| 11/08/2001 | US20010039358 Chromophores containing carbamate groups exhibiting high fluorescence in ultraviolet range; heat sensitive, photosensitive, chemosensitive recording material; photoluminescence, electroluminescence |
| 10/17/2001 | EP0906372B1 Leuco vat dye preparations in granular form |
| 10/17/2001 | EP0700420B1 Thermostable and lightfast dichroic light polarizers |
| 10/16/2001 | US6303354 Fermentation; removal of isatin or indirubin by enzyme; by-product inhibition |
| 09/27/2001 | US20010023652 Ink jet recording; image quality |
| 08/22/2001 | EP1125995A2 Water based ink composition and image forming method |
| 08/22/2001 | CN1309685A Concentrated leucoindigo solutions |
| 08/16/2001 | EP1123289A1 Oxobenzofuranylide-dihydroindolone |
| 08/14/2001 | US6274728 Esterified dye |
| 08/07/2001 | US6271401 Fluorescent anthraquinoid pigments |
| 07/17/2001 | US6261359 Soluble chromophores |
| 06/13/2001 | CN1067130C Method of dyeing cellulose-contg. textile material with hydrogenated indigo |
| 05/09/2001 | EP1097184A1 Concentrated leucoindigo solutions |
| 04/24/2001 | US6222047 Pyrocarbonic acid diesters and the preparation and use thereof |
| 04/18/2001 | EP0968250B1 Soluble chromophores having improved solubilising groups |
| 03/13/2001 | US6200378 Thiazine indigo pigments, solid solutions thereof and their preparation |
| 02/20/2001 | US6190892 Microbial production of indigo |
| 02/14/2001 | EP1076076A1 Pigment for warpage-free polyolefins coloration |
| 01/24/2001 | CN1061069C Purification of indigo |
| 01/16/2001 | US6174394 Method for thermostable and lightfast dichroic light polarizers |
| 12/05/2000 | US6156914 Treating a benzoxyethylester substituted in 6 and 6' position by dialkylamino group with a base or an acid in presence of oxygen or carrying out the temperature thermolysis and the working up the particular resulting reaction mixture |
| 11/09/2000 | WO2000066663A1 Method for producing aqueous alkaline solutions or reduced indigoid dyes |
| 11/02/2000 | DE19919746A1 Verfahren zur Herstellung von wäßrig-alkalischen Lösungen reduzierter indigoider Farbstoffe Process for the preparation of aqueous alkaline solutions of reduced indigoid dyes |
| 11/01/2000 | CN1057996C N-phenyl-acetate preparing process |
| 10/25/2000 | EP1046681A2 Hybrid pigments |
| 10/03/2000 | US6127549 Fluorescent indigo pigments |
| 09/20/2000 | EP1036821A1 Process for the preparation of thiazine-indigo compounds and of new intermediates therefor |
| 07/18/2000 | US6090166 Process for dyeing a textile material with indigo using indoxyl, and system for exploiting the process |
| 07/05/2000 | EP1015518A1 Isoxindigos useful as colorants and preparation thereof |
| 05/16/2000 | US6063924 N-(alkenyl or alkynyl)oxycarbonyl substituted chromophore derivatives; soluble organic pigments |
| 05/04/2000 | WO2000024736A1 Oxobenzofuranylide-dihydroindolone |
| 04/11/2000 | US6049428 Coating a substrate with a solution of an organic dye occurring in the lyotropic liquid-crystal state in a solvent while simultaneously orienting the dye and removing the solvent |
| 02/23/2000 | EP0980930A1 Process for dyeing of textile materials with indigo using the indoxyle and installation for carrying out the method |
| 02/02/2000 | EP0975697A1 Thiazine indigo pigments, solid solutions thereof and their preparation |
| 01/27/2000 | WO2000004100A1 Concentrated leucoindigo solutions |
| 01/20/2000 | DE19831291A1 Concentrated leuco-indigo solution, especially for dyeing cotton warp yarn for blue denim, contains leuco-indigo in the form of a mixture of salts of at least two alkali metal hydroxides |
| 01/19/2000 | EP0792257A4 Dichroic light polarizers |
| 01/11/2000 | US6013777 Process for the preparation of fluorescent pigments |
| 01/11/2000 | US6013776 Carbamate-containing soluble chromogens exhibiting solid state fluorescence in the uv range |
| 01/05/2000 | EP0968250A1 Soluble chromophores having improved solubilising groups |
| 12/28/1999 | US6007587 Leuco vat dye preparations in granule form |
| 12/01/1999 | EP0665892B1 Enhanced indole biosynthesis |
| 11/09/1999 | US5981766 3-hydroxy-4-methyl-6 -chlorothionaphthene is oxidized using an oxidizing agent |
| 11/03/1999 | CN1234052A Doner-substituted oxindigo derivatives and their use as colourants |
| 08/04/1999 | EP0933402A1 Process for the preparation of 4,4'-dimethyl-6,6'-dichlorothioindigo |
| 07/28/1999 | EP0738258B1 Process for preparing n-substituted glycinic acids or glycine esters and use of said process in indigo synthesis |
| 07/07/1999 | CN1222175A Leuco vat dye prepns. in granular form |
| 06/16/1999 | CN1043651C Process for preparing purified indigo |
| 06/02/1999 | EP0919597A2 New crystal modification of thiazine-indigo |
| 05/25/1999 | CA2254432A1 Novel crystal modification of thiazine-indigo |
| 04/07/1999 | EP0906372A1 Leuco vat dye preparations in granular form |
| 03/23/1999 | US5886160 Thermal treatment |
| 03/18/1999 | WO1999013007A1 Isoxindigos useful as colorants and preparation thereof |
| 03/18/1999 | CA2280867A1 Isoxindigos useful as colorants and preparation thereof |
| 03/10/1999 | EP0900255A1 Donor-substituted oxindigo derivatives and their use as colourants |
| 02/23/1999 | US5874580 Fluorescent perylene pigments |
| 02/02/1999 | US5866396 Microbial production of indigo |
| 12/23/1998 | CN1202933A Improved microbial production of indigo |
| 11/10/1998 | US5834297 Using recombinant escherichia coli containing a gene encoding a phenol hydroxylase from bacillus stearothermophilus; e.coli tryptophanase converts tryptophan to indole, which is then converted to dyes; heat stable enzyme |
| 10/28/1998 | CN1197061A N-phenyl-acetate preparing process |
| 10/20/1998 | CA2146027C Enhance indole biosynthesis |
| 09/22/1998 | US5811543 Fluorescent carbamate-modified phthalocyanine pigments |
| 07/30/1998 | WO1998032802A1 Soluble chromophores having improved solubilising groups |
| 07/30/1998 | WO1998032800A1 Thiazine indigo pigments, solid solutions thereof and their preparation |
| 07/30/1998 | CA2275965A1 Soluble chromophores having improved solubilising groups |
| 07/14/1998 | US5780627 Fluorescent dioxazine pigments |
| 05/12/1998 | US5750758 Pyrocarbonic acid diesters and the preparation and use thereof |
| 04/29/1998 | EP0698064A4 Indigo dye process |
| 04/14/1998 | US5739296 Method and materials for thermostable and lightfast dichroic light polarizers |
| 04/08/1998 | CN1178233A Method for synthesis of thioindigo dyes |
| 03/03/1998 | US5723626 Fluorescent isoindoline pigments |
| 02/18/1998 | CN1037450C Method for preparing purified indigo |
| 01/28/1998 | CN1037187C Purification of indigo |
| 01/02/1998 | DE19624208A1 Leukoküpenfarbstoff-Präparationen in Granulatform Leuco vat dye preparations in granule form |
| 12/24/1997 | WO1997048770A1 Leuco vat dye preparations in granular form |
| 11/25/1997 | US5691171 Culture of escherichia with a gene from bacillus encoding phenol hydroxylase and dna sequences |
| 11/11/1997 | US5686625 Amination, hydrogenation of glyoxylic acid or ester hemiacetal |
| 11/06/1997 | WO1997041176A1 Donor-substituted oxindigo derivatives and their use as colourants |
| 11/06/1997 | CA2249217A1 Donor-substituted oxindigo derivatives and their use as colourants |
| 09/03/1997 | EP0792257A1 Dichroic light polarizers |
| 05/29/1997 | WO1997019175A1 Improved microbial production of indigo |
| 05/29/1997 | CA2646500A1 Improved microbial production of indigo |
| 05/29/1997 | CA2646494A1 Improved microbial production of indigo |
| 05/29/1997 | CA2646490A1 Improved microbial production of indigo |
| 05/28/1997 | EP0700420A4 Thermostable and lightfast dichroic light polarizers |
| 04/30/1997 | CN1148585A Soluble chromophore containing solubilizing group easy to be removed |
| 03/26/1997 | EP0764628A1 Diesters of pyrocarbonic acid, their preparation and their use |
| 03/18/1997 | US5611822 Indigo dye process |
| 03/12/1997 | EP0761772A1 Soluble chromophors containing solubility-enhancing groups which separate easily therefrom |
| 02/05/1997 | CN1142223A Process for preparing N-substituted glycinic acids or glycinic esters and use of said process in indigo synthesis |
| 01/29/1997 | CA2182147A1 Soluble chromophores containing solubilising groups which can be easily removed |
| 12/24/1996 | US5586992 Oxidation aftertreatment |
| 11/06/1996 | EP0692042B1 Method of dyeing cellulose-containing textile material with hydrogenated indigo |
| 10/23/1996 | EP0738258A1 Process for preparing n-substituted glycinic acids or glycine esters and use of said process in indigo synthesis |
| 10/17/1996 | WO1996032445A1 Process for the electrochemical reduction of vat dyes |
| 10/17/1996 | DE19513839A1 Verfahren zur elektrochemischen Reduktion von Küpenfarbstoffen A process for electrochemical reduction of vat dyes |
| 10/01/1996 | US5561232 Carbamate group-containing soluble chromophores; solid state fluorescence in the ultraviolet range |
| 09/18/1996 | CN1131436A Recovery of insoluble biosynthetic products |