Patents
Sitemap › C09 - Dyes; Paints; Polishes; Natural resins; Adhesives; Compositions not otherwise provided for; Applications of materials not otherwise provided for › C09B - Organic dyes or closely-related compounds for producing dyes; Mordants; Lakes › C09B 23 - Methine or polymethine dyes, e.g. cyanine dyes
Patents for C09B 23 - Methine or polymethine dyes, e.g. cyanine dyes (4,654)
06/1985
06/18/1985CA1189071A1 Alkanediyl bridged benzimidazolo monomethine cyanine dyes, processes for their preparation, and photographic emulsions and elements containing such dyes
06/05/1985EP0143310A2 Color light-sensitive material
06/04/1985US4521605 Photoconductors for electrography and fluorescent brightening agents for paints
05/1985
05/21/1985CA1187277A1 Photoconductive compositions
05/14/1985US4517284 Light-sensitive silver halide photographic material
05/07/1985US4515888 Cyanine dyes for sensitizing silver halide emulsions to infrared radiation and photographic elements including them
04/1985
04/30/1985US4514045 Helichromic-smectic liquid crystal compositions and display cells
04/24/1985EP0138362A2 Photographic materials containing chalcogenazoles, chalcogenazolines and chalcogenazolinium and chalcogenazolium salts
04/23/1985US4513142 Preparation of cationic methine dyestuffs
04/16/1985CA1185476A1 Electrically photosensitive material including colorant compound comprising two merocyanine units joined by a cyanine group
04/10/1985EP0136847A2 Photographically useful chalcogenazolylidene and chalcogenazolium dyes and methods for their preparation
04/09/1985US4510235 Nonfogging dyes
04/02/1985US4508811 Optical recording
04/02/1985US4508784 4-Styryl-4'-vinylbiphenyls, the production thereof and use thereof as fluorescent
03/1985
03/26/1985US4507374 Electrophotographic recording medium containing τ and η metal-free phthalocyanine
03/12/1985US4504668 Process for the preparation of N-sulfoalkyl quaternary salts of nitrogen heterocyclics
02/1985
02/26/1985CA1183034A1 Photoconductive composition and elements comprising first and second cyclic boron containing electron acceptors
02/19/1985US4500621 Sensitive electrophotographic plates containing squaric acid methine dyes suspended in a binder
02/05/1985CA1182115A1 Process for the preparation of sulfoalkyl quarternary salts
01/1985
01/23/1985EP0131749A2 Cationic enamin dyestuffs, their preparation and their use
01/15/1985US4493889 Silver halide photographic light-sensitive materials
12/1984
12/25/1984US4490463 Alkanediyl bridged benzimidazolo monomethine cyanine dyes, processes for their preparation, and photographic emulsions and elements containing such dyes
12/19/1984EP0128521A2 Composition and method for the detection of bacteria
12/12/1984EP0127862A1 Electrophotographic recording material
12/05/1984EP0127455A2 Merocyanine dyes
12/05/1984EP0126990A2 Silver halide photographic emulsion
11/1984
11/21/1984EP0125866A2 Narrow band light absorbing filter
11/20/1984US4483799 Sulfoalkylating agents
11/13/1984US4482716 Dye bleaeh process; antihalation agents
10/1984
10/10/1984EP0121326A2 Alkanediyl bridged benzimidazolo monomethine cyanine dyes, processes for their preparation, and photographic emulsions and elements containing such dyes
08/1984
08/22/1984EP0116381A1 Recording element having a pyrypium or thiopyryliumsquarylium dye layer and new pyrylium or thiopyryliumsquarylium compounds
08/07/1984US4464284 Mixtures of optical brighteners
07/1984
07/31/1984US4463076 Merocyanine-cyanine-merocyanine (MCM) electrically photosensitive colorants for photoelectrophoretic imaging
07/31/1984US4462805 Mixture of cationic compounds for dyeing and printing textiles, leather and paper
07/25/1984EP0113922A2 Process for the manufacture of cationic methine dyes
07/25/1984EP0113921A2 Process for the manufacture of stable solutions of cationic methine dyes
07/25/1984EP0113920A2 Process for the manufacture of stable solutions of cationic methine dyes, and their use in spin dyeing
06/1984
06/27/1984EP0112169A2 Photoconductive compositions
05/1984
05/17/1984EP0086230A4 Merocyanine-cyanine-merocyanine (mcm) electrically photosensitive colorants.
05/08/1984US4447244 Process for mass-dyeing of thermoplastics: polystyrene and styrene copolymers with indoline methine dyes
05/02/1984EP0107492A2 Helichromic-smectic liquid crystal compositions and display cells
05/01/1984US4446227 Dyestuffs and their use in photographic material
04/1984
04/03/1984US4440852 Silver halide photographic light-sensitive material containing oxonal dyes
03/1984
03/27/1984US4439372 Process for the preparation of styryl dyestuffs
03/27/1984US4439204 Dye salts
03/14/1984EP0102781A2 Cyanine dyes
03/07/1984EP0102318A2 Preparation of beta-amino-alpha,beta-unsaturated carboxylic-acid esters
03/07/1984EP0101897A1 Heterocyclic compounds
02/1984
02/29/1984EP0101646A2 Photographic elements incorporating antihalation and/or acutance dyes
02/14/1984CA1162195A1 Dimethine dyestuffs, their preparation and their use for dyeing synthetic and natural materials
01/1984
01/03/1984US4424170 Halostilbene sulfonates useful as starting materials for making fluorescent whitening agents of the 4,4'-distyrylbiphenyl series
12/1983
12/27/1983US4423129 Electrophotographic member having layer containing methylidenyl hydrazone compound
12/27/1983US4422969 Cationic styryl dyestuffs
12/20/1983CA1159082A1 Process for the preparation of 4,4'-dinitrostilbene- 2,2'-disulfonic acid and its salts
12/13/1983US4420555 Photographic materials containing yellow filter dyes
12/06/1983US4419511 Indoline compound, formate, acetic acid, acetic anhydride
11/1983
11/23/1983EP0094642A1 Mixture of cationic compounds
11/15/1983US4415641 Electrophotographic light-sensitive element
11/15/1983US4415621 Use of α,α-bis(dialkylaminobenzylidene) ketone dyes in optical recording elements
11/09/1983EP0093331A2 Electrophotographic recording medium
11/02/1983EP0092698A1 Process for the preparation of cationic methine dyes
10/1983
10/26/1983EP0092255A1 Composite type photosensitive member for electrophotography
10/25/1983US4411450 Pressure-sensitive or heat-sensitive recording material
10/11/1983CA1155041A1 Fluorescent nucleic acid stains
10/11/1983CA1154963A1 USE OF.alpha.,.alpha.'-BIS(DIALKYLAMINOBENZYLIDENE) KETONE DYES IN OPTICAL RECORDING ELEMENTS
09/1983
09/28/1983EP0089566A1 Process for the preparation of cationic methine dyes
09/14/1983EP0088595A2 Cyanine dyes for sensitizing silver halide emulsions to infrared radiation and photographic elements including them
09/13/1983US4404277 Desensitizing dyes for photographic emulsions
09/06/1983US4403095 Dyeing polyacrylonitriles
08/1983
08/31/1983EP0087044A1 Process for the colouring of thermoplastic materials in the mass
08/24/1983EP0086230A1 Merocyanine-cyanine-merocyanine (mcm) electrically photosensitive colorants.
08/23/1983US4400059 Liquid crystal display device
08/16/1983US4399207 Electrophotographic photosensitive member with hydrazone compound
08/09/1983US4397651 Polymeric dyes derived from bis-reactive methylene compounds and aromatic di-aldehydes for paper
07/1983
07/26/1983US4395544 Dyes or chemical intermediates for dyestuffs
07/19/1983US4394428 Improved quantum efficiency
07/19/1983CA1150259A1 Cationic compounds
07/05/1983US4391886 Methine colorant materials and the use thereof in electrophoretic migration imaging layers and processes
06/1983
06/28/1983CA1148788A1 Photographic silver halide materials containing dispersed light-absorbing merostyryl dyes
06/07/1983US4387149 Cationic dyes; stability; copying
05/1983
05/31/1983US4386146 Dye sensitized titanium dioxide electrophotographic photosensitive materials
05/24/1983US4384973 Red/orange polyester fluorescent dye
05/04/1983EP0078233A1 Photosensitive polymer-imageing recording material and dyes
04/1983
04/19/1983US4380633 Methine dyes from tetrahydroquinoline compounds containing N-thioether substituents
04/19/1983US4380629 Styryl-like compounds showing a color-developing and bleaching behavior with improved stability and prolonged lifetime
04/19/1983US4380627 Triazine, cationic, thiazole dyes; colorfastness; textiles; paper; leather; yellow
04/19/1983US4380514 Preparation of optical brighteners
04/13/1983EP0076633A1 Guest-host type liquid crystal composition
04/12/1983CA1144555A1 Separation and isolation of conjugated and unconjugated bilirubin
04/06/1983EP0076088A2 A photoconductive composition and a photoconductive element comprising the composition
03/1983
03/30/1983EP0075202A2 Dyestuffs for printing
03/23/1983EP0074926A2 Dye salts
03/23/1983EP0074569A2 Cationic methine dyes, process for their preparation and their use, in dyeing textile materials and other substrates
03/08/1983CA1142527A1 Light-absorbing methine dyes and photographic materials containing them
03/03/1983WO1983000752A1 Merocyanine-cyanine-merocyanine (mcm) electrically photosensitive colorants
02/1983
02/08/1983US4373102 Isoindoline dyes, their preparation and use
02/01/1983CA1140551A1 3,3-dicyanomethylidene-2,3-dihydrothiophen -1,1-dioxide derivatives
01/1983
01/26/1983EP0070445A2 Process for the preparation of styryl dyestuffs
01/18/1983US4369310 Bleachable dyes
01/05/1983EP0068876A1 Oxoindolizine and oxoindolizinium dyes and processes for their preparation
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