Patents for C09B 35 - Disazo or polyazo dyes of the type a d b prepared by diazotising and coupling (1,497) |
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12/15/1987 | US4713113 Water solubility disazo dyes and humectant |
12/08/1987 | US4711668 Aqueous ink composition |
12/02/1987 | EP0247618A2 Trisazo dyes containing heterocycles |
12/01/1987 | CA1229849A1 Electrophotographic photoreceptor |
11/24/1987 | US4708921 Photosensitive material containing disazo compound for use in electrophotography |
11/19/1987 | DE3715066A1 Basic azo compounds containing and free from sulpho groups |
10/27/1987 | US4703113 Water-soluble triazine black dyes free from cellulose reactive groups and suitable for use in inks |
10/27/1987 | US4702982 Electrophotographic photosensitive member comprising disazo pigment |
10/20/1987 | US4701525 Polyazo dyestuffs having high UV absorption |
09/29/1987 | US4696675 Diazotization on cotton |
09/08/1987 | US4692393 Electrophotography |
08/18/1987 | US4687721 Electrophotographic photoreceptor containing a trisazo compound |
08/11/1987 | US4686287 Orange pigments for inks, paints, plastics, rubbers, printing |
08/11/1987 | US4686285 Basic azo and non-azo compounds having one or two disubstituted 1,3,5-triazine rings each of which is linked through a bridging radical to the 1-position of a pyrazole ring |
06/30/1987 | US4676923 Dichroic dyestuffs for liquid crystal and liquid crystal composition |
06/16/1987 | US4673735 Azo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates therefor |
05/19/1987 | US4666810 Photosensitive member for electrophotography comprising azo pigments |
05/19/1987 | US4666805 Photosensitive material containing disazo compound for use in electrophotography |
05/12/1987 | US4665163 Yellow shades in plastics |
05/12/1987 | US4664709 Azoacylacetamide dispersing agents and azo-pigment compositions |
05/05/1987 | US4663442 Disazo triphenylamine compounds |
04/15/1987 | EP0218206A2 Disazo pigments having a piperazine bridging member |
04/15/1987 | EP0218143A2 Recording liquid for use in jet-printing recording systems |
04/15/1987 | EP0218137A2 Water soluble aminonaphthol disazo dyes, their preparation and their use |
04/08/1987 | EP0217060A1 Hexakisazo dyes and aqueous ink compositions, methods for the preparation thereof and use thereof |
04/07/1987 | US4656257 Disazo compound having an anthraquinone nucleus |
03/10/1987 | US4648907 High color strength diarylide yellow pigment compositions |
03/03/1987 | US4647520 Electrophotographic photoreceptor containing an azo compound |
01/06/1987 | US4634764 Non-azo and azo compounds containing at least one 4,6-diamino-1-substituted-5-substituted carbamoylpyrid-2-one group |
12/16/1986 | US4629672 Electrography; optical recording media photsensitivity; durability |
12/10/1986 | EP0204244A2 Tetrakis azo dyes |
11/25/1986 | US4624708 Sulfonated trisazo dyes for ink jet compositions |
11/12/1986 | EP0201458A2 Trisazo black dyes |
11/11/1986 | US4622280 Disazo compound, and photoconductive composition and electrophotographic photoreceptor containing the same |
11/05/1986 | EP0199973A2 Process for the production on the fibre of water insoluble azo dyes |
11/04/1986 | US4620875 Tetrakisazo dyes |
10/28/1986 | US4619881 Photoconductive composition and electro-photographic light-sensitive material containing a trisazo compound |
10/28/1986 | US4619880 Electrophotographic light sensitive material contains hydrazone compound |
10/28/1986 | US4619878 Tetrazonium salt compound, disazo compound, method for preparing the same, and photosensitive material containing said disazo compound for use in electrophotography |
10/21/1986 | US4618672 Bisazo compounds useful as charge generating pigments in electrophotography |
10/21/1986 | US4618555 Electrophotographic photoreceptor comprising azo compounds |
10/08/1986 | EP0196900A2 Azo compound and solution type composition comprising the same |
10/08/1986 | EP0196574A2 4,4'-Diaminodiphenyl compounds, process for their preparation and their use |
10/08/1986 | EP0196573A2 Bis-diazonium salts of 4,4'-diamino-3,3'-dialkoxy-biphenylene, process for their preparation and their use |
10/08/1986 | EP0094019B1 Water-soluble disazo compounds, process for their preparation and their use as dyestuffs |
10/01/1986 | EP0196025A2 Process for the preparation of 4,4'-diaminodiphenyl compounds, and their use |
10/01/1986 | EP0196023A2 4,4'-Disazo compounds of 3,3'-dialkoxybiphenylene, process for their preparation and their use |
09/23/1986 | US4613208 Coloring substance-containing liquid crystal mixtures |
09/17/1986 | CN85102763A Synthesis of black dye for silk staining |
09/16/1986 | US4612369 Disazo 4,4'-diaminostilbene-2,2'-disulfonic acids dye |
09/16/1986 | US4612271 Photosensitive composition comprising azo compounds |
09/09/1986 | US4610943 Electrophotographic photosensitive member contains disazo photoconductive compound |
09/09/1986 | US4610803 Electronics |
09/03/1986 | EP0193052A1 Azoacylacetamide dispersing agents and azo-pigment compositions |
09/02/1986 | US4609726 Red pigments for inks or plastics |
09/02/1986 | US4609609 Ultraviolet |
07/29/1986 | US4602960 Modified diarylide pigments and their preparation |
07/23/1986 | EP0188055A2 Photoreceptor |
07/15/1986 | US4600674 Trisazo electrophotographic photoconductive material |
07/15/1986 | US4600527 Azo dyes, mult&color, photochromic |
07/15/1986 | CA1207756A1 Water-soluble disazo compounds, processes for their preparation, and their use as dyestuffs |
07/08/1986 | US4599287 Positive charging photorecptor |
07/01/1986 | US4598033 Improved sensitivity and duravility |
06/24/1986 | US4596754 Electrophotographic printing original plate and electrophotographic plate making process using the printing original plate |
06/10/1986 | US4594410 Azo compounds containing both sulfo groups and basic or cationic groups which compounds are in metal-free or 1:1 metal complex form |
05/27/1986 | US4591635 Dyes for leather or paper |
05/13/1986 | US4588517 Liquid crystal composition |
04/15/1986 | US4582771 Disazo compound, method for preparing the same, and electrophotographic element containing the same for use in electrophotography |
04/09/1986 | EP0176742A2 Polyazo dyes |
04/02/1986 | EP0176195A2 Water-soluble dye |
04/01/1986 | US4579800 High stability with respect to light and heat |
03/18/1986 | US4576886 Electrography |
02/25/1986 | CA1200970A1 Helichromic-smectic liquid crystal compositions and display cells |
02/04/1986 | US4568623 Photoconductive compositions containing novel disazo compounds and electrophotographic photoreceptors using the same |
01/29/1986 | EP0169808A2 UV-absorber compounds, method for their preparation and their use as image dyes in photographic materials for the silver dye-bleaching process |
01/28/1986 | US4567124 Electrophotographic element with trisazo photoconductor and an amine substituted charge transfer material |
01/21/1986 | US4565424 Asymmetric dichroic dye molecules having poly(arylazo) linking groups, a bis-substituted aryl thiazyl end group, and another end group |
12/31/1985 | US4562131 Photoreceptor containing a trisazo compound for use in electrophotography |
12/31/1985 | CA1198730A1 Diaryl pigments, a process for their preparation and their use |
12/10/1985 | US4557988 Disazo compounds, photoconductive compositions and electrophotographic light-sensitive materials containing the same |
11/26/1985 | US4555567 For charge transfer in electrophotographic element |
11/19/1985 | US4554231 Electrophotographic photosensitive member |
11/05/1985 | US4551404 Disazo electrophotographic photosensitive member |
10/23/1985 | EP0158888A2 Disazo compounds, process for their preparation and their use |
10/02/1985 | EP0156481A2 Photoreceptor |
10/01/1985 | CA1194471A1 Ureylenebis (hydroxy naphthalenesulfonic acids) |
09/25/1985 | EP0155522A1 Photoconductive composition and electrophotographic light-sensitive material |
08/28/1985 | EP0153145A2 Photoreceptor |
08/27/1985 | US4537847 Disazo photoreceptors for electrophotography |
08/27/1985 | US4537844 Electrophotographic element containing disazo compound |
08/20/1985 | US4536570 Direct dyes;dyeing of cellulose |
08/07/1985 | EP0150707A1 Electrophotographic photoreceptor |
08/06/1985 | US4533613 Disazo compounds and photoconductive composition as well as electrophotographic light sensitive element containing the same |
06/19/1985 | EP0145348A2 Photoreceptor |
06/19/1985 | EP0144791A2 Photoreceptor |
06/12/1985 | EP0144020A2 Azodyes and liquid crystalline materials containing these dyes |
06/04/1985 | US4521591 Oil-soluble disazo dyes and their use in color-photographic recording materials for the silver dye bleach process |
06/04/1985 | US4521217 Phthalocyanine and azo dyestuff mixtures and their use for dyeing paper |
05/28/1985 | US4519935 Liquid-crystalline material containing azo dyestuffs |
05/08/1985 | EP0139944A2 Modified diarylide pigments and process for their preparation |