| 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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| 01/01/1991 | US4981489 Disazo compounds and formulations containing same |
| 12/20/1990 | DE4018010A1 Photoconductor for electrophotography |
| 11/28/1990 | EP0399458A1 Diarylide/disazo pyrazolone pigment compositions |
| 11/28/1990 | EP0399457A1 Water-based ink compositions |
| 11/28/1990 | EP0399403A1 Electrophotographic photoreceptor |
| 11/27/1990 | US4973672 Water-soluble aminonaphthol disazo dyestuffs, their preparation and their use |
| 11/23/1990 | CA2016534A1 Water-based diarylide pigment compositions |
| 11/20/1990 | US4971876 Photoconductor for electrophotography |
| 10/16/1990 | US4963450 Electrophotographic photosensitive member with disazo pigment |
| 10/10/1990 | EP0391399A1 Electrophotographic photoreceptor |
| 09/11/1990 | US4956255 Photosensitive member |
| 09/04/1990 | US4954133 Mixtures of a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having two 4,4'-(2,2'-disulfostilbenylene) radicals and a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having one such radical |
| 08/28/1990 | US4952678 Excellent photostability; solubility; used in liquid crystalline media and dying synthetic polymers or fibers |
| 08/14/1990 | US4948688 Sensitivity, durability |
| 08/02/1990 | DE4001351A1 New tetrakis:azo cpds. used as electrophotographic charge generator |
| 07/17/1990 | US4942106 Electrophotographic photosensitive member containing disazo pigment having coupler residue |
| 07/04/1990 | EP0376032A2 Stilbene dyes and films or sheets containing the same |
| 06/27/1990 | EP0374659A2 Optically clear siloxane compositions |
| 06/27/1990 | EP0374655A1 Light-polarising films or foils containing stilbene pigments |
| 06/23/1990 | CA2006427A1 Light-polarizing films or sheets containing stilbene dyestuffs |
| 06/19/1990 | US4935502 Diazo compounds, a process for their preparation and their use as colorants |
| 06/19/1990 | US4935323 Photoconductor for electrophotography |
| 06/19/1990 | US4935322 Photosensitive member comprising a bisazo compound |
| 06/12/1990 | US4933156 Iodine labeled binding compounds |
| 05/29/1990 | US4929525 Photoconductor for electrophotography containing azo or disazo compound |
| 05/15/1990 | US4925758 Azo pigment as charge generating compound |
| 05/01/1990 | US4921770 Photoreceptor for electrophotography |
| 04/24/1990 | US4920208 Basic azo dyestuffs |
| 04/17/1990 | US4917981 Photosensitive member for electrophotography |
| 04/17/1990 | US4917731 Water-soluble black trisazo dyestuffs |
| 04/10/1990 | US4916215 Water-soluble disazo compounds containing substituted triazinyl radical, pyrazole-type groups, and a plurality of fiber-reactive sulfone-containing groups, suitable as dyestuffs |
| 04/10/1990 | US4916039 Azo pigment as charge generator |
| 03/28/1990 | EP0360085A2 Offset printing and offset dyestuffs |
| 03/27/1990 | US4912002 Electrophotosensitive layered article provided styryl compounds and bisazo pigment |
| 03/27/1990 | US4912001 Electrophotographic photoreceptor comprising azo compound and coupler |
| 03/07/1990 | EP0357560A2 Anionic triazinylamino-disazo dyes |
| 02/28/1990 | EP0355601A2 Polyazo dyes and their intermediate products |
| 02/14/1990 | EP0354872A2 Trisazo dyes and process for dyeing paper |
| 01/24/1990 | EP0352229A2 Process for dyeing paper |
| 01/23/1990 | US4895781 Layered electrophotographic photosensitive member containing substituted polycyclo trisazo compounds |
| 01/17/1990 | EP0350984A1 Electrophotographic recording material containing a trisazo dye |
| 01/16/1990 | US4894094 Disazo compounds and formulations containing same |
| 01/09/1990 | US4892968 3,3'-Dichloro-4,4-diaminodiphenyl sulfonic acids |
| 12/26/1989 | US4889924 Bisazo compounds |
| 11/21/1989 | US4882255 Disazo charge generating compounds; photosensitive, excellent reuse |
| 11/21/1989 | US4882249 Photosensitivity, durability |
| 11/08/1989 | EP0341214A2 Basic 6-hydroxypyrid-2-one compounds |
| 11/07/1989 | CA1262723A1 Trisazo black dyes |
| 10/10/1989 | US4873164 Electrophotographic photoreceptor comprising a charge transport medium and a bis-azo compound containing oxygen |
| 10/03/1989 | US4871637 Electroconductive composition and electrophotographic photoreceptor using the same comprising bisazo compounds |
| 10/03/1989 | US4871636 Azo photoconductor for electrophotography |
| 09/26/1989 | US4870164 Symmetrical and asymmetrical disazo compounds having a bis-aryloxy alkane bridge |
| 09/12/1989 | US4865935 Photosensitive member comprising an azo pigment |
| 07/26/1989 | EP0324943A2 Water soluble black trisazo dyes |
| 07/25/1989 | US4851315 Bisazo photoconductive film and electrophotographic light-sensitive element using same |
| 07/05/1989 | EP0322823A2 Electrophotographic photoreceptor |
| 06/06/1989 | US4836827 Tris-azo black or grey dyes for leather or pelts |
| 05/23/1989 | US4833054 Electrophotographic photoreceptor having a bisazo compound |
| 05/23/1989 | US4833052 Bisazo photoconductive imaging members |
| 05/23/1989 | CA1254555A1 Azoacylacetamide dispersing agents and azopigment compositions |
| 05/16/1989 | US4830944 Function separated photosensitive member having a diphenylamine derivative disazo charge generation material |
| 05/16/1989 | US4830943 Bisazo compounds and electrophotographic photoconductors comprising the bisazo compounds |
| 05/09/1989 | US4829185 Neutron and/or gamma radiation detecting system |
| 04/26/1989 | EP0312838A2 Basic azodyes, their preparation and their use |
| 04/18/1989 | US4822704 Improved sensitivity and durability |
| 04/18/1989 | US4822424 Improved water resistance and lightfastness |
| 04/11/1989 | US4820602 Electrophotographic photosenitive member comprising disazo compounds having non-symetric coupler portions |
| 04/11/1989 | US4820600 Electrophotographic photoreceptor having a bisazo compound |
| 03/29/1989 | EP0309392A2 Mono- and dichloro-4,4'-diaminodiphenyl-5,5'-disulfonic acids |
| 03/28/1989 | US4816034 Water soluble direct black polyazo dyestuffs mixture |
| 03/07/1989 | US4810608 Charge generation agents |
| 03/07/1989 | US4810607 Durability |
| 02/01/1989 | EP0301350A2 Disazo dyes |
| 01/10/1989 | US4797337 Disazo photoconductive imaging members |
| 12/27/1988 | US4793860 Aqueous ink composition |
| 12/13/1988 | US4791194 Durability; electrography |
| 11/22/1988 | US4786571 Photosensitive member with hydrazone charge transport material |
| 11/17/1988 | EP0291089A2 Electrophotographic photoreceptor |
| 11/15/1988 | US4784668 Dyes for inks |
| 11/08/1988 | US4783387 Photosensitive member comprising disazo pigment |
| 10/26/1988 | EP0287909A1 Amyloidosis and Alzheimer's disease diagnostic assay and reagents therefor |
| 10/25/1988 | US4780533 Disazo pigments having improved heat resistance using lower alkyl and phenyl esters of acetoacetanilide |
| 10/25/1988 | US4780106 Colorfastness, waterfastness |
| 08/16/1988 | US4764599 Disazo compounds containing an N,N-bis(2-amino-benzoyl)piperazine derivative as the diazo component |
| 07/26/1988 | US4760003 Electrophotographic photosensitive member containing disazo compound |
| 07/19/1988 | US4758659 Hexakisazo dyes |
| 05/25/1988 | EP0268154A2 Trisazo dyes |
| 05/10/1988 | US4743523 Photosensitive member for electrophotography |
| 05/03/1988 | US4742161 Disazo and trisazo compounds containing one 6-hydroxypyrid-2-one coupling component radical per azo radical |
| 05/03/1988 | US4742160 Sulfo group-containing basic azo compounds having a central 1,3,5-triazine ring and two terminal 1-hydroxynaphthyl-2 groups and 1:1 and 1:2 metal complexes therof |
| 04/20/1988 | EP0263951A2 Disazo compounds and compositions containing them |
| 04/12/1988 | US4737430 Electrophotographic photoreceptor with azo-containing photosensitive member |
| 04/12/1988 | US4737310 Liquid crystal composition containing azo dyes |
| 04/12/1988 | US4737240 Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol-3-sulfonic acid |
| 03/29/1988 | US4734489 Black dyestuff for ink jet printing |
| 03/22/1988 | US4732975 Disazo compounds |
| 03/15/1988 | US4731315 Electrophotographic photoreceptor containing a trisazo compound and a charge transport material |
| 02/09/1988 | US4724259 Azo dyes and liquid-crystalline materials containing these dyes |
| 01/27/1988 | EP0253932A1 A water soluble direct black polyazo dyestuffs mixture |
| 01/26/1988 | US4721779 Electrooptical apparatus |