| Patents for C09B 27 - Azo dyes in which the azo group is formed in any way other than by diazotising and coupling (210) |
|---|
| 03/02/2005 | EP1510555A1 8-(anilino)-1-naphthalenesulfonate analogs and their use in analyte detection assays |
| 02/23/2005 | EP1224240B1 8-(anilino)-1-naphthalenesulfonate analogs and their use in analyte detection assays |
| 02/02/2005 | CN1187411C Method of preparing monoazo dye having stable crystal form |
| 10/27/2004 | CN1541086A Dyeing compson. for kerationous fibres comprising particular dicationic diazo dye |
| 07/29/2004 | US20040143911 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye |
| 07/08/2004 | US20040132982 Process for the preparation of aromatic azo-compounds |
| 05/05/2004 | CN1493621A Production method of xylon colouring agent |
| 03/24/2004 | EP1399117A1 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye |
| 02/26/2004 | US20040039182 Mono-and bis-hydrazone pigments |
| 04/23/2003 | CN1413235A 8-(Anilino)-1-naphthalenesulfonate analogs and their use in analyte detection assays |
| 04/16/2003 | CN1410489A Method of preparing monoazo dye having stable crystal form |
| 01/08/2003 | EP1272567A2 Mono- and bis-hydrazone pigments |
| 12/19/2002 | WO2002100368A1 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye |
| 09/19/2002 | WO2001074950A3 Mono- and bis-hydrazone pigments |
| 07/24/2002 | EP1224240A1 8-(anilino)-1-naphthalenesulfonate analogs and their use in analyte detection assays |
| 02/07/2002 | US20020015915 Azo compound containing metal and optical recording medium using the compound |
| 10/11/2001 | WO2001074950A2 Mono- and bis-hydrazone pigments |
| 10/11/2001 | CA2403328A1 Mono- and bis-hydrazone pigments |
| 08/28/2001 | US6281338 Mono- and dipotassium salts of azo compounds |
| 05/03/2001 | WO2001030915A1 8-(anilino)-1-naphthalenesulfonate analogs and their use in analyte detection assays |
| 05/03/2001 | CA2385923A1 8-(anilino)-1-naphthalenesulfonate analogs and their use in analyte detection assays |
| 04/17/2001 | US6218571 8-(anilino)-1-naphthalenesulfonate analogs |
| 03/28/2001 | EP1086992A1 Mono- and dipotassium salts of azocompounds |
| 03/28/2001 | CN1288887A Monopotassium salt and dipotassium salt of azo-compound |
| 03/22/2001 | DE19945245A1 Mono- und Dikaliumsalze von Azoverbindungen Mono- and dipotassium salts of azo compounds |
| 03/21/2001 | CA2320507A1 Mono- and dipotassium salts of azo compounds |
| 11/29/2000 | CN1275074A Dyeing composition for keratinous fibres with cationic direct colouring agent and silicone |
| 11/08/2000 | EP1049447A1 Dyeing composition for keratinous fibres with a cationic direct colouring agent and a silicone |
| 03/09/2000 | WO2000012057A1 Dyeing composition for keratinous fibres with a cationic direct colouring agent and a silicone |
| 03/30/1999 | US5889163 Method for producing azo dye compounds |
| 05/13/1998 | EP0840798A1 Use of a salt of 6-carboxy-3-methylbenzothiazolone hydrazone hydrate in colorimetric determination of hydrogen peroxide |
| 01/20/1998 | US5710012 Salt of 6-carboxy-3-methylbenzothiazolone hydrazone hydrate in colorimetric determination of hydrogen peroxide |
| 01/28/1997 | CA2065698C 14-crown-4-ether derivatives |
| 11/28/1996 | WO1996037629A1 Use of a salt of 6-carboxy-3-methylbenzothiazolone hydrazone hydrate in colorimetric determination of hydrogen peroxide |
| 11/28/1996 | CA2221978A1 Use of a salt of 6-carboxy-3-methylbenzothiazolone hydrazone hydrate in colorimetric determination of hydrogen peroxide |
| 06/19/1996 | EP0717403A1 Heterocyclylazoaniline dyes, heterocyclylazoaniline dye metal complexes and their use in optical elements |
| 04/16/1996 | US5508143 Optical recording medium |
| 07/25/1995 | US5436113 Cyanine dye, phenol photostabilizer, compact disk |
| 06/13/1995 | US5425015 Film contains a bis(thienylethene anhydride)-type compound which has a ring opening/ring closing portion stimulated by light |
| 07/26/1994 | US5332608 Cyanine and benzotriazole dyes |
| 05/11/1994 | EP0596339A1 Optical recording medium |
| 03/03/1994 | DE4329351A1 Optical recording medium with good reproduction - has photochromic layer contg. a bis(thienyl:ethene anhydride) with a light-activated ring opening/closing site |
| 02/08/1994 | US5284691 Optical recording medium and method of reproducing information record on the optical recording medium |
| 09/14/1993 | US5245021 14-crown-4-ether derivatives |
| 03/16/1993 | US5194389 Naphthol derivatives, processes for their production and their use |
| 03/02/1993 | US5190800 Light resistance |
| 12/02/1992 | EP0516226A1 Novel 14-crown-4-ether derivatives |
| 09/08/1992 | US5145953 Thermooxidative stability |
| 05/12/1992 | CA1300605C 2-hydrazono-4,6-dinitrobenzthiazolones |
| 12/11/1991 | CN1056856A Recovery and use method of pigment from wasted dyeing water |
| 12/10/1991 | US5071967 Disazo compounds containing long-chain alkyl ester radicals or alkylamide radicals |
| 11/21/1991 | EP0457184A2 Naphthol derivatives, method for their preparation and use therefor |
| 08/21/1991 | EP0442846A2 Disazo compounds with long-chain alkylester- or alkylamide moieties |
| 10/09/1990 | US4962040 For colorimetric quantitative analysis |
| 07/17/1990 | US4942225 Transfer to active methylene group an azo or diazo group |
| 03/06/1990 | US4906741 Azo dimers containing the hexafluoroisopropylidene group |
| 10/24/1989 | US4875986 Photopoymerization of 1,4-diazidobenzene |
| 08/17/1989 | DE3902684A1 Boron complexes |
| 06/06/1989 | US4837308 Process for the preparation of azo compounds |
| 05/30/1989 | US4835261 Mono- and disazo dyes and intermediates; polymer dyeing |
| 05/24/1989 | EP0316731A2 Azo dyes from 2-hydrazinothiazole, their use in dyeing and printing fibre materials, and in sublimation transfer printing |
| 01/04/1989 | EP0297397A2 Preparation of diazo and azo compounds |
| 11/09/1988 | EP0290117A1 Method for the preparation of pollakis-azobenzenes |
| 12/09/1987 | EP0248312A1 4,6-Dinitro benzothiazolone-2-hydrazones |
| 09/23/1987 | EP0237911A2 Azo compounds |
| 12/09/1986 | US4628082 Organic pigments |
| 11/20/1986 | EP0201892A1 Method of making azo compounds |
| 11/11/1986 | US4622391 Organic pigments |
| 09/02/1986 | US4609439 Means and method for the electrochemical reduction of a nitroaromatic to provide a dye |
| 04/08/1986 | CA1202961A1 Photographic products and processes employing novel nondiffusible cyan dye-releasing compounds and precursors thereof |
| 11/19/1985 | CA1196912A1 Photographic products and processes employing novel nondiffusible magenta dye-releasing compounds and precursors thereof |
| 05/07/1985 | US4515963 Process for producing 1,8-naphtholactam compounds |
| 01/22/1985 | US4495100 Non-diffusible cyan compound capable of releasing a 6-heterocyclylazo-3-pyridinol |
| 01/22/1985 | US4495099 Non-diffusible magenta compound capable of releasing a 4-(2-heterocyclazo)phenol having a heterocyclic ring fused thereto |
| 01/22/1985 | US4495098 Color photography; diffusion transfer quality color reproduction/ ogen-containing activator |
| 12/27/1984 | CA1179879A Photographic material for the silver dye bleach process including oil soluble triazene and amino benzene coupling agent derivatives |
| 10/09/1984 | US4476207 Photographic products and processes employing novel nondiffusible cyan dye-releasing compounds and precursors thereof |
| 08/14/1984 | US4465763 Oil soluble triazine compound and a phenyl amine coupler |
| 08/14/1984 | CA1172494A1 Photographic products and processes employing substituted sulfonamidophenol or sulfonamidonaphthol dye releasers |
| 03/13/1984 | US4436799 Photographic products and processes employing novel nondiffusible magenta dye-releasing compounds and precursors thereof |
| 12/13/1983 | US4420550 4-/2-heterocyclylazo/phenol having heterocyclic ring fused thereto |
| 12/06/1983 | US4419435 Photographic products and processes employing 6-heterocyclylazo-3-pyridinol nondiffusible cyan dye-releasing compounds and precursors thereof |
| 11/30/1983 | EP0095410A2 Photographic element employing a substituted sulfonamidophenol or sulfonamidonaphthol dye-releasing compound |
| 11/30/1983 | EP0095324A2 Photographic recording material employing a nondiffusible magenta dye-releasing compound or precursor thereof |
| 11/30/1983 | EP0095127A2 Photographic recording material employing a nondiffusible cyan dye-releasing compound or precursor thereof |
| 10/04/1983 | US4407930 Diffusion transfer |
| 09/13/1983 | US4404273 Process for the production of photographic color images by the silver dye bleach process |
| 08/30/1983 | US4401600 Certain 3-phenylhydrazono-2-amino-1,1,3-propene tricarbonitrile |
| 08/03/1983 | EP0084853A1 Process for the preparation of 1,8-naphtholactam compounds |
| 08/02/1983 | US4396710 Photographic recording material with metal complexable, heterocyclic azo dye |
| 03/23/1983 | EP0074515A1 Azo derivatives of barbituric acid, their solid solutions, insertion compounds and intercalation compounds |
| 03/15/1983 | US4376730 Preparation of p-aminoazo-benzene from aniline |
| 03/09/1983 | EP0073463A1 Insertion compounds, intercalation compounds and solid solutions of coloured metallic organic derivatives |
| 06/23/1982 | EP0054513A1 Process for the production of photographic colour images according to the silver dye bleaching process, and photographic material used in this process |
| 06/23/1982 | EP0054230A2 Monoazo dyestuffs and use as image-forming dyestuffs in colour-photographic registration materials |
| 07/21/1981 | US4279815 Production of high-quality aromatic amino azo compounds by the rearrangement of 1,3-diaryl triazenes |
| 02/24/1981 | US4252716 Benzthiazolyl-azo-indole basic dyestuffs |
| 01/06/1981 | US4243583 Process for the preparation of azo dyes |
| 12/02/1980 | US4237068 Primary aminoacylanilides |
| 07/23/1980 | EP0013643A1 Production of high-quality aromatic amino azo compounds by the rearrangement of 1,3-diaryl triazenes |