| Patents for C09B 7 - Indigoid dyes (453) |
|---|
| 07/30/1996 | CA1338490C Foam type dye composition for human keratinic fibers, comprising 5,6-dihydroxyindole |
| 07/16/1996 | US5536842 Purification of indigo |
| 07/10/1996 | EP0720647A1 Recovery of insoluble biosynthetic products |
| 05/30/1996 | WO1996016015A1 Dichroic light polarizers |
| 04/10/1996 | CN1120357A Method of dyeing cellulose-containing textile material with hydrogenated indigo |
| 03/13/1996 | EP0700420A1 Thermostable and lightfast dichroic light polarizers |
| 02/28/1996 | EP0698064A1 Indigo dye process |
| 02/27/1996 | US5494816 Enhanced indole biosynthesis |
| 02/27/1996 | US5494491 Indigo dye process |
| 02/20/1996 | US5492819 Recovery of insoluble biosynthetic products |
| 01/17/1996 | EP0692042A1 Method of dyeing cellulose-containing textile material with hydrogenated indigo |
| 08/30/1995 | CN1107489A Purification of indigo |
| 08/24/1995 | DE4405057A1 Cyano-indigo cpds. useful as textile dye, marking agent or photoconductor |
| 08/10/1995 | DE4403829A1 Prepn. of N-substd. glycine (ester), indoxyl and indigo prepn. |
| 08/09/1995 | EP0665892A1 Enhanced indole biosynthesis |
| 07/06/1995 | WO1995018093A1 Process for preparing n-substituted glycinic acids or glycine esters and use of said process in indigo synthesis |
| 06/20/1995 | CA2055729C Process for the preparation of indigo compounds |
| 06/20/1995 | CA2000990C Process for the preparation of indigo compounds |
| 04/19/1995 | EP0648817A1 Novel fluorescent dyes |
| 04/14/1995 | CA2117860A1 Fluorescent pigments |
| 03/30/1995 | WO1995008620A1 Recovery of insoluble biosynthetic products |
| 01/24/1995 | CA1334098C Process for the preparation of indigo compounds |
| 01/24/1995 | CA1334097C Process for the preparation of indigo compounds |
| 01/24/1995 | CA1334096C Process for the preparation of indigo compound |
| 01/10/1995 | US5380871 Preparation of halogenated indigo |
| 01/03/1995 | US5378246 Inert gas, oxidizing leuco dye |
| 12/20/1994 | US5374543 Enhanced indole biosynthesis |
| 12/08/1994 | WO1994028073A1 Thermostable and lightfast dichroic light polarizers |
| 11/24/1994 | WO1994026823A1 Indigo dye process |
| 11/24/1994 | CA2161321A1 Indigo dye process |
| 10/13/1994 | WO1994023114A1 Method of dyeing cellulose-containing textile material with hydrogenated indigo |
| 10/06/1994 | DE4310122A1 Process for dyeing cellulosic textile material with indigo |
| 09/27/1994 | US5350425 Method of reducing vat dyes and the process of dyeing fabrics therein |
| 08/24/1994 | CA2116063A1 Stabilisation of organic pigments |
| 08/23/1994 | US5340366 Hair dye compositions and process comprising and utilizing a combination of isatin and aminopyrimidine derivatives |
| 04/14/1994 | WO1994008035A1 Enhanced indole biosynthesis |
| 01/27/1994 | DE4319670A1 New thio-indigo and precursor cpds. for pigmenting lacquers, printing inks and plastics - by ring opening, S-alkylating, cyclising, decarboxylating, de:aminating, hydroxylating and oxidising benzo:isothiazole cpds. for dyeing cellulosic textiles |
| 01/19/1994 | EP0578655A1 Method of preparing halogenated indigo |
| 01/18/1994 | US5279616 Hair dye compositions and process comprising and utilizing a combination of isatin and aminopyridine derivatives |
| 11/16/1993 | US5261926 Process for dyeing keratinous fibers combining isatin or its derivatives with a tri-, tetra- or pentasubstituted aniline or with a bisphenylalkylenediamine, and dyeing agents |
| 06/23/1993 | CN1021335C Process for dyeing on material by directly using dried biological matter containing indigo blue or other derivatives |
| 04/27/1993 | US5205837 Product based on inorganic or organic lamellar particles, containing a melanotic pigment, process for preparing it and its use in cosmetics |
| 02/16/1993 | US5187283 Process for the preparation of indigo compounds |
| 02/03/1993 | CN1068581A Purification of indigo |
| 01/20/1993 | EP0523532A2 Method of purification of indigo |
| 12/22/1992 | US5173425 Transforming host cell with DNA sequence that encodes two ferredoxin polypeptides for each reductase polypeptide and iron-sulfur polypeptide by growing transformed organisms in the presence of iron |
| 11/04/1992 | CN1065873A Purification of indigo |
| 11/04/1992 | CN1065872A Purification of indigo |
| 10/21/1992 | EP0509275A1 Process for the purification of indigo |
| 10/21/1992 | EP0509274A1 Process for the purification of indigo |
| 10/15/1992 | WO1992017547A1 Method of preparing halogenated indigo |
| 10/01/1992 | DE4110458A1 Verfahren zur herstellung von halogeniertem indigo Process for the preparation of halogenated indigo |
| 09/09/1992 | EP0502784A1 Keratinous fibres dyeing process with isatin or derivatives thereof associated with a tri-, tetra- or pentasubstituted aniline or a bisphenylalkylenediamine and dyeing agents |
| 09/09/1992 | EP0502783A1 Keratinous fibres dyeing process with isatin or derivatives thereof associated with an aminopyridine or an aminopyrimidine and dyeing agents |
| 09/06/1992 | CA2062359A1 Process for dyeing keratimic fibers associating isatine or its derivatives to an aminopyrrolidine an aminopyridine, and dyeing agents |
| 09/06/1992 | CA2062280A1 Process for dyeing keratinic fibers, combining isatin or the derivatives thereof with a tri-, tetra or pentasubstituted aniline or a phenylalkylenediamine; dyeing agents |
| 05/27/1992 | EP0487322A1 Process for the preparation of indigo compounds |
| 05/26/1992 | US5116997 Purification of indigo |
| 05/26/1992 | US5116996 Stripping, distillation |
| 05/12/1992 | US5112987 Process for the preparation of indigo compounds |
| 04/28/1992 | US5109137 Extracting the aqueous alkaline indoxylate solution with an inert water insoluble solvent in the absebce of oxygen before oxidizing the solution |
| 03/25/1992 | EP0476930A1 Enzyme assays |
| 03/13/1992 | CA2051144A1 Enzyme assays |
| 01/22/1992 | EP0467767A1 Product based on flaky particles containing melanine pigment and process for their preparation |
| 01/17/1992 | CA2047137A1 Mineral or organic lamellar particle based product containing a melanic pigment, its preparation process and its use in cosmetics |
| 12/24/1991 | US5075458 Purification of indigo |
| 10/29/1991 | US5061290 Denim cotton yarns |
| 06/04/1991 | US5021329 Silver halide photographic material containing a dye precursor residue |
| 02/12/1991 | US4992556 Reacting indole compound with organic hydroperoxide |
| 01/23/1991 | CN1048735A Rope dyeing process using indigo derivative and dyed article thus obtained |
| 01/16/1991 | EP0408269A2 Rope dyeing process using indigo derivative and dyed article thus obtained |
| 01/11/1991 | CA2020549A1 Rope dyeing process using indigo derivative and dyed article thus obtained |
| 11/27/1990 | US4973706 Oxidation of indole with hydroperoxide |
| 11/13/1990 | CA1276121C Method of dyeing cotton and other substrates with a microorganism biomass containing indigo |
| 10/30/1990 | US4966977 Peroxidation of indole compound |
| 10/04/1990 | DE3910648A1 Process for preparing 2-nitrobromobenzaldehydes and 6,6'-dibromindigo |
| 06/12/1990 | US4933250 Magenta color toner for developing latent electrostatic images in color electrophotography |
| 05/30/1990 | CN1042553A Process for prepn. of indigo compounds |
| 05/16/1990 | EP0368508A2 Process for the preparation of indigo compounds |
| 04/17/1990 | US4918221 Process for preparing 2,5-dichlorophenylthioglycollic acid |
| 02/13/1990 | US4900326 One package, one step |
| 11/29/1989 | CN1037527A Process for the preparation of indigo compounds |
| 11/02/1989 | EP0339887A1 Process for the preparation of indigo compounds |
| 10/04/1989 | EP0335524A2 Process for the preparation of indigo compounds |
| 10/04/1989 | CN1036025A Process for preparing indigo compounds |
| 09/13/1989 | CN1035521A Process for the preparation of indigo compound |
| 08/30/1989 | EP0330419A2 Process for the preparation of indigo compound |
| 08/02/1989 | EP0326160A2 Silver halide photographic material |
| 02/21/1989 | US4806128 Process for preparing vat pigment dyes |
| 02/01/1989 | EP0129690B1 Process for the preparation of 4,4',7,7'-tetrachlorothioindigo pigments |
| 11/17/1988 | EP0290886A1 Process for the preparation of 2,5-dichlorophenylthioglycolic acid |
| 10/26/1988 | EP0288092A1 DNA transformation vectors |
| 10/18/1988 | US4778619 Substituted indigo dyes having improved solubilities |
| 06/21/1988 | US4752301 Method to due cotton and other substrates with a micro-organism biomass containing indigo |
| 01/27/1988 | CN87104436A Improvement in or relating to organic compounds |
| 01/07/1988 | EP0252002A2 Method for dyeing using a biomass containing indigo or a derivative thereof |
| 04/15/1987 | EP0218156A2 Process for the preparation of pigment dyes |
| 03/24/1987 | US4652660 Process for preparing a thioindigo derivatives comprising cyclizing in a liquid mixture of an aluminium halide an alkali metal halide, and a carboxamide or sulfonamide |
| 01/27/1987 | CA1217155A1 Microbial production of indigo |
| 10/29/1986 | EP0199111A2 Liquid crystal compositions |