| Patents for C09B 49 - Sulfur dyes (429) |
|---|
| 04/17/1984 | US4443369 Sulphur dyestuffs |
| 03/07/1984 | EP0102019A2 Vat dyes |
| 11/29/1983 | US4418014 Process for the manufacture of sulphur which can be recycled |
| 11/09/1983 | EP0093363A1 Process for the preparation of disulphides |
| 11/09/1983 | EP0093362A1 Process for the preparation of sulfur dyes of the phthalocyanine series |
| 09/13/1983 | US4403995 Sulphur dyestuffs, a process for their manufacture and their use from hydroxy-diphenylamine compounds |
| 11/23/1982 | US4360459 Sulphur dyestuffs of the carbazole series |
| 10/27/1982 | EP0063208A1 Completely oxidized sulfur black 1 for an aqueous printing ink |
| 10/13/1982 | EP0062257A1 Sulphur dyes, process for their preparation and their use |
| 08/10/1982 | US4343653 Completely oxidized Sulfur Black 1 for ink |
| 06/02/1982 | EP0052748A1 Sulphur dyes, their preparation and their use |
| 03/16/1982 | US4320060 Heating a 3-amino-carbazole with p-hydroquinone and/or p-aminophenol in an oxygen-free atmoisphere |
| 01/13/1982 | EP0043537A1 Sulfur dyes, their preparation and their use, as well as the intermediates for the preparation of the sulfur dyes |
| 01/05/1982 | US4309401 Process for the manufacture of sulphur which can be recycled |
| 01/05/1982 | US4309178 Using polymeric flocculant |
| 11/24/1981 | US4302582 Process for the preparation of a condensation product from phenothiazine and p-nitrosophenol |
| 10/21/1981 | EP0037975A1 Sulfur dyes of the carbazole series, their preparation and application, as well as intermediate compounds |
| 10/14/1981 | EP0037563A1 Sulfur dyes of the carbazole series, their preparation and application, as well as intermediate compounds |
| 04/29/1981 | EP0027637A1 Process for the isolation of sulfur dyestuffs from aqueous crude smelts containing sodium polysulfides, as well as the isolated sulfur dyestuffs |
| 02/24/1981 | US4252533 Mercapto compounds as reducing agents |
| 10/29/1980 | EP0017704A1 Process for making a condensation product from phenothiazine and p-nitrosophenol and its use in preparing sulphur dyestuffs |
| 10/15/1980 | EP0016933A1 Process for dyeing and printing with sulphur dyes and for preparing sulphur dye preparations ready for use, and sulphur dye preparations prepared accordinlgy |
| 08/20/1980 | EP0014261A1 Process for the preparation of derivatives of 3-(4-hydroxyanilino)-carbazole and the use of the derivatives so obtained in the preparation of sulfur dyes |
| 08/19/1980 | US4218219 Condensation product from phenothiazine and p-nitrosophenol, process for the production of the condensation product, process for the production of sulfur dyestuffs using the condensation product and the sulfur dyestuffs prepared therewith |
| 10/23/1979 | CA1064947A1 Process for the manufacture of thianthrene based products |
| 10/16/1979 | CA1064500A1 1,4-dithlino(2,3-c; 6, -c')diisothiazole and related compounds |
| 05/16/1979 | EP0001801A1 Condensation product of phenothiazine and p-nitrosophenol, process for producing the condensation product, process for producing sulfur dyes by using the condensation product and the produced sulfur dyes |
| 07/19/1977 | US4036586 Process for oxidizing sulfur dyes |
| 05/11/1976 | US3956332 Indanthrene or indathrene dye |