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)
05/1990
05/15/1990US4925595 Storage stable detergent
05/09/1990EP0367449A1 Mixed chalcogenide pyrylium salts of a Lewis base
05/08/1990US4923792 Benzylidene leuco compounds as color-generating reducing agents, topcoat of polyvinyl alcohol
05/08/1990US4923788 Filter dyes for photographic elements
05/02/1990EP0366145A2 Silver halide photographic material
05/01/1990US4922020 1,1,5,5-tetra(4-aminophenyl)-pentadi-1,4-ene compounds
05/01/1990US4921780 Optical recording medium
04/1990
04/24/1990US4920031 Silver halide photographic light-sensitive elements containing water soluble dyestuffs
04/18/1990EP0364403A1 Distyryl biphenyl compounds
04/18/1990EP0364120A2 A cycloalkene compound and a recording material using the compound
04/11/1990EP0363107A2 Tri-nuclear dyes for photographic compositions and method of preparation
04/11/1990EP0363104A2 Silver halide photographic material
04/11/1990EP0362387A1 Silver halide photographic material
04/10/1990US4916234 Chromogenic dicyanomethylenepyrazolinones
04/10/1990US4916127 Photodynamic antitumor agents
04/04/1990EP0361949A2 Silver halide photographic light-sensitive material containing oxonol dye
04/03/1990US4914190 Tricyanovinyl-N,N-disubstituted anilines as disperse dyes
03/1990
03/27/1990US4912259 Pentadiene amino compound
03/27/1990US4912002 Electrophotosensitive layered article provided styryl compounds and bisazo pigment
03/22/1990WO1990002777A1 Cyanine compounds
03/20/1990US4910110 Photoconductor including hydrazone compound in a photoconductive layer
03/15/1990DE3912046A1 New luminescent dyes - of cyanine, merocyanine or styryl type, contg. sulpho gps., useful for labelling components in aq. media
03/14/1990EP0358439A1 Improved magenta filters for filter arrays
03/14/1990EP0357780A1 Optical head
03/13/1990US4908437 Thien-2-one compounds with an alkylidene or imino group in the 5-position of the ring
03/13/1990US4908040 Anionic cyclodiylide compounds, their preparation and use in washing agents as shading dyes
03/07/1990EP0356532A1 Pentadiene compound and recording material using the compound
03/06/1990US4906750 Sulfoalkyl benzoxazoleinylidene butenylidene thiobarbituric acid derivatives
03/01/1990DE3928758A1 Optical recording medium for use with laser contg. cyanine dyestuff - and indolizine dyestuff or tri:nuclear merocyanine dyestuff for high reflectivity
02/1990
02/28/1990EP0356173A2 Fluorescent dyes
02/28/1990EP0356041A2 Non-linear optical element
02/28/1990EP0355483A2 Optical recording material
02/27/1990US4904794 Pyrazoline compounds
02/27/1990US4904578 Light absorbing dye for photography
02/13/1990US4900831 Novel benzofuran dyes
02/13/1990US4900653 Photographic elements containing filter dye particle dispersions
02/13/1990US4900648 Recording, erasing using laser beam, methine dye
02/13/1990US4900645 Electrophotographic photosensitive member comprises styryl compound as transport material
02/08/1990WO1990000978A1 A heat sensitive recording element and a thermographic method
02/01/1990DE3924571A1 Direct positive silver halide emulsion contg. organic desensitiser - with heterocyclic azulene gp. and methine dyestuff, giving high speed and stability
01/1990
01/31/1990EP0353007A2 Polymethine dyes suitable for optical recording media
01/17/1990EP0351367A2 Disperse dyes containing a tricyan vinyl group
01/10/1990EP0350253A2 Reducible compounds which provide aniline dyes, and analytical compositions, elements and methods using same
01/10/1990EP0350026A2 Infrared filter dye for photographic element
01/10/1990EP0349809A2 Complex metal pigments
01/09/1990US4892949 Organic photoconductors
01/03/1990EP0348497A1 Non-linear optical material containing a hemicyanine compound and process for producing it
01/02/1990US4891324 Fluorimetry
12/1989
12/27/1989EP0347854A2 Photoreceptor for electrophotography
12/26/1989US4889410 Magenta filters
12/20/1989EP0347183A2 Dye solution and process for the preparation of information recording medium
12/14/1989WO1989012080A1 Novel merocyanine dyes
12/12/1989US4886720 Photosensitive medium having a styryl charge transport material
12/05/1989US4885369 Photoconductive material for electrophotography comprising rhodanine derivative charge complex
12/05/1989US4885366 Novel selenium-containing merocyanine dyes
12/05/1989US4885113 Nonlinear optically responsive inorganic-organic composite compositions
11/1989
11/28/1989US4883747 Light sensitive silver halide, organic acid silver salt, leuco dye
11/23/1989EP0342987A1 Silver halide photographic material
11/23/1989EP0342939A1 Silver halide photographic light sensitive material
11/23/1989EP0342810A2 Cyanine dyes and preparation thereof
11/23/1989EP0342576A1 Improved infrared laser recording film
11/21/1989US4882265 Absorbing cyanine dye present as in a backing layer as an antihalation agent; antisoilants; medical diagnosis
11/15/1989EP0341567A2 Novel benzofuran dyes
11/15/1989EP0341541A2 Azulene-squarillic dyes containing urethane groups, their intermediary products and an optical recording medium
11/14/1989US4880762 Coloring phthalide compounds, method of producing the compounds and recording materials using any of the compounds as coloring component
11/09/1989DE3914151A1 Squarylium compounds and their use in optical recording materials
11/08/1989CN1036976A Radiation-curable ink and coating compositions containing ionic dye compounds as initiators
11/07/1989US4879195 Laser-sensitive electrophotographic material
10/1989
10/31/1989US4877721 Photographic silver halide elements containing filter dyes
10/25/1989EP0338426A2 Azulene methine dyes and recording material containing these dyes
10/24/1989US4876356 Naphtholactam dyes and optical recording medium containing these days
10/24/1989US4876347 Methine dyes having a pyridyl group and a pyridyl or a quinolinyl group
10/24/1989US4876181 Antihalation, antistaining agents; cyanine dyes of indole, benzindole or naphthindole types
10/24/1989US4876150 Langmuir blodgett films
10/18/1989EP0337948A1 Disperse dyes
10/18/1989EP0337307A2 Electrophotographic photoreceptor
10/10/1989US4873184 Addition of a metal complexing agent to the emulsion; high speed
10/04/1989EP0335236A2 Methine dyes and recording material containing these dyes
10/03/1989US4871656 Photographic silver halide elements containing infrared filter dyes
09/1989
09/26/1989US4869983 Sulfonyl-containing styrene derivatives and their use in electrophotographic processes
09/26/1989CA1260944A1 Oxachalcogenazole dyes, processes for their preparation, and articles containing these dyes
09/20/1989EP0332924A2 Arylidene pyrazolone dye-donor element for thermal dye transfer
09/20/1989EP0332923A2 Alpha-cyano arylidene pyrazolone magenta dye-donor element for thermal dye transfer
09/12/1989US4866029 Photostability; colorfastness
09/12/1989US4865942 Cyanine dyes
08/1989
08/29/1989US4861700 Photographic element containing yellow filter dyes having tricyanovinyl groups
08/22/1989US4859556 Multilayer; electroconductive support with photosensitive material
08/22/1989CA1258672A1 Calcium complexing dyes and their use in analytical compositions, elements and methods
08/17/1989DE3902684A1 Boron complexes
08/15/1989US4857431 Photoconductive composition
08/08/1989US4855221 Photographic elements having oxonol dyes
08/08/1989US4855213 Novel polymethine dyes and imaging compositions
08/02/1989EP0326160A2 Silver halide photographic material
08/01/1989US4853310 Triiolide salts of cyanine dyes suitable for sensitization of photoconductive systems
07/1989
07/25/1989US4851549 Pigments
07/19/1989EP0324717A1 Negative-working silver halide emulsion containing certain monomethine compounds
07/18/1989US4849306 Dry toners containing methinefanal pigments
07/13/1989WO1989006424A1 Optical head
07/12/1989EP0323729A2 Solid particle dispersions of dyes useful in photographic elements
07/12/1989EP0323728A2 Filter dyes for photographic elements
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