| Patents for C09B 51 - Nitro or nitroso dyes (412) |
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| 09/21/1988 | EP0282749A1 Hair dyeing compositions containing direct nitrodiphenylamine derivatives |
| 09/15/1988 | DE3707273A1 Nitro-p-phenylenediamine derivatives, processes for their preparation, and hair-dyeing compositions containing these compounds |
| 08/31/1988 | EP0280187A1 Hair dyeing compositions with direct-dyeing nitro-diphenyl amine derivatives |
| 08/31/1988 | EP0280186A1 Hair dyeing compositions with direct-dyeing nitrodiphenyl amine derivatives |
| 07/12/1988 | US4756716 Cosmetic carrier, surfactant, nitrodiphenylamine hair dyes |
| 07/12/1988 | US4756715 Hair-dyeing preparations containing substantive nitrodiphenylamine derivatives |
| 06/07/1988 | US4749379 Hair dyes |
| 04/26/1988 | US4740622 3-amino-4-nitrophenols, the process for preparation thereof and their use in dyeing keratinous fibres, and new intermediate 4,5-dinitrophenols |
| 04/05/1988 | US4736067 New dimethyl derivatives of 3-nitro-4-aminoaniline, process for their preparation and their use for dyeing keratinic fibers |
| 02/23/1988 | US4727192 Oxidation color dyes |
| 02/16/1988 | US4725283 Dyeing compositions for keratinic fibres, based on halogenated meta-phenylenediamines |
| 12/09/1987 | EP0248334A2 Process for the manufacture of 2-nitro-4-sulfamyl-diphenyl amine dyes |
| 11/19/1987 | DE3616720A1 1-(2',3'-Dihydroxypropyl)amino-4-(N-ethyl-N-2'-hydroxyethyl)amino- 2-nitrobenzene and hair dye compositions |
| 11/03/1987 | US4704474 Red-to-violet direct dyes |
| 09/22/1987 | US4695405 Process for quenching fluorescence, and new cationic or amphoteric aromatic nitro compounds |
| 09/01/1987 | US4690685 Dyeing composition for keratinous fibres containing at least one co-solubilized N-substituted 2-nitro-para-phenylenediamine |
| 08/20/1987 | DE3704632A1 New 2-nitro-meta-phenylene:di:amine cpds. |
| 07/01/1987 | EP0226973A2 4-Bis(2'-hydroxyethyl)amino-1-(3'-hydroxypropyl)amino-2-nitro-benzene, process for its preparation and means for dyeing hair |
| 06/23/1987 | CA1223278A1 Meta-phenylenediamine coupler compounds and oxidative hair dye compositions and methods using same |
| 06/11/1987 | DE3543020A1 Process for preparing 4-[ethyl-(2'-hydroxyethyl)amino]-1-[(2'-hydroxyethyl)amino]-2-nitroben zene |
| 06/02/1987 | CA1222462A1 Direct dyeing of keratinic fibers with tinctorial compositions containing at least one co-solubilized n-substituted 2-nitro-paraphenylenediamine and process for dyeing the related keratinic fibers |
| 05/26/1987 | US4668237 Dye composition containing 5-nitrovanillin and its use for dyeing keratinic fibres, and especially human hair |
| 05/26/1987 | US4668236 Imidazolidinedione |
| 05/19/1987 | US4666453 Nitro-meta-phenylenediamines halogenated in the 6th position and their use in dyeing keratinic substances |
| 05/06/1987 | EP0220614A1 Direct hair dyeing composition containing derivatives of nitrodiphenyl amine |
| 05/06/1987 | EP0220613A1 Direct hair dyeing composition containing derivatives of nitrodiphenyl amine |
| 04/14/1987 | CA1220487A1 Dimethyl nitro-3 amino-4 aniline derivatives, preparation process thereof and use to colour keratinic fibers |
| 03/26/1987 | DE3533792A1 Use of 5-amino-2-nitrophenol derivatives in hair dyeing compositions, process for the preparation of these compounds, and 5-amino-2-nitrophenol derivatives |
| 01/20/1987 | US4637821 Tinctorial composition for keratin fibres, based on nitrated benzene dyestuffs |
| 12/16/1986 | US4629467 Use of p-ureidoalkylamino-nitrobenzene derivatives in hair dyeing compositions and new p-ureidoalkylamino-nitrobenzene derivatives |
| 12/03/1986 | EP0203446A1 Nitro-p-phenylene diamine derivatives, process for their preparation and hair dye compositions containing these compounds |
| 09/23/1986 | CA1211756A1 Nitrated derivatives of the benzenic series; process for preparing the same and their use for the dyeing of keratinic fibers |
| 09/23/1986 | CA1211755A1 Tinctorial compositions containing oxidation dyes precursors and nitrated benzenic dyes stable in a reducing alkaline phase; use thereof for the dyeing of keratinic fibers |
| 08/19/1986 | CA1210028A1 Process for preparing nitroanilines; hair-dyeing compositions containing the same; new nitroanilines |
| 07/22/1986 | US4601726 Dye composition for the direct dyeing of keratinic fibres, containing at least one N-substituted cosolubilized 2-nitroparaphenylenediamine and corresponding processes for dyeing keratinic fibres |
| 07/08/1986 | US4599450 Process for the preparation of acid nitro dyestuffs |
| 06/11/1986 | EP0184061A1 4-(N-ethyl,N-2'-hydroxyethyl)-amino-1-(2"-hydroxyethyl)-amino-2-nitrobenzene and hair dyeing agents |
| 05/28/1986 | EP0182330A2 Use of 2-nitroaniline derivatives as hair dyeing agents, and 2-nitroaniline derivatives |
| 05/27/1986 | US4591359 Process for preparing acid nitro dyestuffs for leather |
| 03/11/1986 | US4575378 Substituted 4-amino-3-nitrophenols, processes for their preparation and hair-coloring agents containing these compounds |
| 01/28/1986 | US4567498 Containing cationic softening agent |
| 01/28/1986 | US4566876 Colorfast shades of blue and brown |
| 12/27/1985 | EP0165483A2 Process for the manufature of acid nitro dyes |
| 12/11/1985 | EP0163854A2 Process for the elimination of fluorescence and cationic or amphoteric aromatic nitro compounds |
| 11/26/1985 | US4555247 Hair-dyeing compositions based on nitro direct dyestuffs, and a dyeing process using these compositions |
| 08/14/1985 | EP0151400A2 Hair dyeing compositions with picramic acid derivatives, new picramic acid derivatives and process for preparing same |
| 08/07/1985 | EP0150765A2 Use of p-ureidoalkylamino nitrobenzene compounds in hair dyeing compositions and p-ureidoalkylamino nitrobenzene compounds |
| 08/01/1985 | WO1985003223A1 UTILIZATION OF COMPOUNDS OF p-UREIDOALKYLAMINO-NITROBENZENE IN HAIR COLORANTS AND NEW COMPOUNDS OF p-UREIDOALKYLAMINO-NITROBENZENE |
| 08/01/1985 | WO1985003222A1 Hair colorant with picramic acid derivatives, new picramic acid derivatives and production process thereof |
| 06/19/1985 | EP0145513A2 Derivatives of dimethyl-3-nitro-4-amino-aniline, process for their preparation and their use in the dyeing of keratin fibres |
| 04/17/1985 | EP0137243A2 Process for the manufacture of acid nitro dyes |
| 04/16/1985 | US4511360 Dyeing compositions based on oxidation dyestuff precursors and on nitro benzene dyestuffs and their use for dyeing keratin fibres |
| 02/13/1985 | EP0132568A1 Derivatives of 1,4-diamino-5-chloro-2-nitrobenzene, process for their production and agents for dyeing hair |
| 02/05/1985 | CA1182130A1 Nitrated dyes; process for preparing the same; intermediates used for preparing these dyes and dyeing of keratinic fibers with these products |
| 12/27/1984 | EP0129380A1 Record material |
| 11/28/1984 | EP0126378A1 Preparation process of acid nitro dyes |
| 11/06/1984 | CA1177410A1 Hair dyeing compositions based on direct nitrated dyes, and method for using same |
| 09/25/1984 | US4473374 Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers |
| 09/25/1984 | CA1175070A1 Chlorimated nitro-paraphenylenediamines, process for their preparation and application in dyeing keratinic fibres |
| 09/25/1984 | CA1175069A1 Tinctorial composition for keratinic fibres and containing nitro-3-orthophenylenediamines; novel nitro-3-orthophenylenediamines used and processes for their preparation |
| 09/11/1984 | US4470826 Hair dyes, nitro dyes, direct dyes |
| 08/21/1984 | US4466806 Dyeing compositions containing 3-amino-4-nitroanisole derivatives and their use in dyeing keratin fibres as well as certain new said derivatives |
| 07/03/1984 | CA1170274A1 Dye compositions containing 3-amino-4-nitroanisole, their use for dying keratinous fibers, new compounds used and process for preparing the same |
| 02/21/1984 | US4432769 Nitro dyestuffs, a process for their preparation, and use of these dyestuffs in dyeing keratin fibres |
| 12/06/1983 | US4419101 Chlorine-substituted nitro-para-phenylenediamines, a process for their preparation and their use in dyeing keratin fibres |
| 11/29/1983 | US4417896 Hair dye compositions and new compounds useful therein |
| 09/20/1983 | US4405801 Silicon-containing nitro dyes and process for making the same |
| 09/06/1983 | US4403099 Silicon-containing nitro dyes and process for making the same |
| 01/11/1983 | US4368054 Ethoxylated castor oil and n-methyl pyrrolidone |
| 08/11/1982 | EP0057418A1 Nitro-aniline preparations |
| 08/10/1982 | US4343893 Released via electron transfer |
| 06/29/1982 | US4337061 Nitro dyes in aqueous solution |
| 05/18/1982 | US4330291 Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers |
| 02/03/1982 | EP0045129A2 Masked antifoggant compounds for silver photographic systems |
| 11/17/1981 | USRE30798 By reacting 4-fluoro-3-nitroanilines with ammonia or a primary or secondary amine |
| 11/03/1981 | CA1111843A1 Aromatic nitro compounds |
| 08/04/1981 | CA1106368A1 Process for the mononitration of anthraquinone |
| 12/16/1980 | CA1091687A1 Dyeing compositions for human hair and novel etheroxydes in the composition of same |
| 11/04/1980 | US4231964 Nitroamines, processes for their manufacture and their use as diazo components |
| 10/21/1980 | CA1088066A1 Nitrated couplers used as direct, oxydation and mixed dyes |
| 10/07/1980 | US4226784 2- and 5-Aminoalkylamino anthraquinone dyes useful as basic dyes in coloring hair |
| 05/06/1980 | USRE30267 Multilayer analytical element |
| 04/01/1980 | CA1074815A1 Substituted nitroaminophenols, process for their preparation and tinctorial compositions thereof |
| 04/01/1980 | CA1074810A1 Tinctorial compositions for human hair, and new etheronides for the making of same |
| 05/22/1979 | US4155934 Hair dye compounds |
| 05/08/1979 | CA1054034A1 Multilayer analytical element |
| 02/13/1979 | US4139389 Color photography |
| 11/14/1978 | US4125601 Substituted nitroaminophenols, process for their preparation and dyeing compositions in which they are present |
| 05/30/1978 | US4092478 Triphendioxazine triazinyl dyes having phosphonic acid groups |
| 05/30/1978 | US4092102 Hair dyes, oxidation dyes |
| 05/09/1978 | US4088497 Acutance agents for use in thermally-developable photosensitive compositions |
| 01/03/1978 | US4066403 Multilayer analytical element |
| 12/27/1977 | US4065478 Process for the manufacture of α,α'-aminonitroanthraquinones |
| 07/05/1977 | US4033965 Nitro acridone dyes |
| 07/05/1977 | US4033948 Acutance agents for use in thermally-developable photosensitive compositions |
| 03/29/1977 | US4014647 Exhaust process for the dyeing of synthetic fibre materials |
| 11/30/1976 | US3994873 Azo dyestuffs containing sulfonylamino-sulfonyl groups |
| 11/02/1976 | US3989449 Dyestuff compositions |
| 09/14/1976 | US3980427 Exhaust process for the dyeing of synthetic fiber materials |
| 08/31/1976 | US3978061 Keratin fiber dye compounds |