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)
03/1991
03/26/1991US5003077 Having a cycloheptimidazole nucleus; photostability; methine bond having an auxochrome
03/26/1991US5002863 Methine dyes
03/20/1991EP0417555A1 Pentamethine dyes and derivatives
03/13/1991EP0416434A2 Triazole pyridine dyes and a thermal transfer process of methine dyes
03/12/1991US4999282 Silver halide photographic material
03/12/1991US4999281 Cyanine dyes, heterocyclic sulfur compounds as singlet oxygen quenchers
03/12/1991US4999026 Transferring dyes for thermal printing: tri-cyano-vinyl aniline dyes
03/06/1991EP0415816A1 Polymers having non-linear optical properties
03/06/1991EP0415203A2 Thiazole dyes of the merocyanine type and a thermal transfer process using these dyes
03/05/1991US4997805 Heat sensitive recording material containing chromogenic dicyanomethylenepyrazolinones
02/1991
02/27/1991EP0414239A2 Laminated organic photosensitive material
02/27/1991EP0413926A1 Liquid detergent composition containing a whitening agent
02/26/1991US4996328 Bis-(indolyl)ethylenes
02/26/1991US4996141 In silver halide negative emulsion
02/26/1991CA2023956A1 Laminated organic photosensitive material
02/19/1991US4994356 Stable optical filters
02/19/1991US4994343 Stability
02/12/1991US4992558 Disperse dyes containing a tricyanovinyl grouping bonded to a N,N-disubstituted aniline
02/12/1991US4991919 Optical head apparatus including concentric, periodic grating in a waveguide
02/06/1991EP0411103A1 Non-linear optical materials with vicinal donor or acceptor groups
02/05/1991US4990649 Optical recording media
01/1991
01/30/1991EP0410806A1 Novel fluorescent dye
01/25/1991WO1991001312A1 Novel photoactive compounds
01/25/1991CA2065005A1 Photoactive compounds
01/23/1991EP0409145A2 Electrophotographic photoreceptor
01/22/1991US4987262 Absorbers of near infrared radiation, chromogens
01/19/1991CA2021339A1 Electrophotographic photoreceptor
01/16/1991EP0408322A1 Dye-Borate complexes
01/16/1991EP0408227A1 Photohardenable or photosoftenable compositions
01/16/1991EP0408014A1 Squarylium compounds and optical information recording medium using the same
01/15/1991US4985325 Photoconductor for electrophotography containing hydrazone
01/15/1991US4985323 Photoconductor, Sensitizer, Amide
01/15/1991US4985178 Nonlinear optical device from 3-methyl-4-methoxy-4'-nitrostilbene
01/09/1991EP0407228A1 Dye-borate complexes
01/09/1991EP0406333A1 A heat sensitive recording element and a thermographic method.
01/09/1991CA2020666A1 Liquid detergents
01/01/1991US4981977 Intermediate for and fluorescent cyanine dyes containing carboxylic acid groups
01/01/1991US4981970 Leuco dyes, recording
12/1990
12/19/1990EP0403157A2 Thermal dye bleach construction
12/12/1990CA2018359A1 Thermal dye bleach construction
12/05/1990EP0400706A1 Dyes and dye-donor elements for use in thermal dye sublimation transfer
12/05/1990EP0235198B1 Colored unsaturated polyester material containing copolymerized methine dyes, and products therefrom
11/1990
11/30/1990CA2016687A1 Dyes and dye-donor elements for use in thermal dye sublimation transfer
11/27/1990US4973694 Fluorescent dyes, free radical polymerization initiators
11/22/1990EP0398018A1 Process for the preparation of light-sensitive bis-trichloro-methyl-s-triazines
11/15/1990WO1990013435A1 Thermal transfer sheet
11/15/1990DE3915365A1 New heterocyclic methylene cpds. - used in carbonless or thermographic copying material, which develop intensive colour in contact with acid
11/14/1990EP0397435A1 Near infrared antihalation dyes
11/13/1990US4970308 Di(bis-(indolyl)ethylenyl)tetrahalophtalides
11/11/1990CA2016494A1 Near infrared antihalation dyes
10/1990
10/31/1990EP0395587A2 Method for controlling and optimizing industrial processes for manufacturing dyes
10/23/1990US4965183 Tri-nuclear dyes for photographic compositions and method of prepartion
10/23/1990CA1275538C Colored unsaturated polyester material containing copolymerized methine dyes, and products therefrom
10/18/1990CA2014487A1 Light-sensitive bis-trichloromethyl-s-triazines, process for their preparation and light-sensitive composition containing said compounds
10/10/1990EP0391631A1 Photochromic compounds useful in Langmuir-Blodgett films
10/02/1990US4960890 For optical recording media
10/02/1990US4960686 Water solubility; easily eluted after development
09/1990
09/25/1990US4959294 Infra-red sensitising dyes for silver halide
09/19/1990EP0387360A1 Cyanine compounds
09/18/1990US4958021 Pressure and heat sensitive recording materials
09/12/1990EP0387087A2 Photoinitiator compositions, photohardenable compositions and photosensitive microcapsules
09/11/1990US4956277 Photoconductor comprising charge transporting hydrazone compounds
09/09/1990CA2009652A1 Photoinitiator compositions containing disulfides and photohardenable compositions containing the same
08/1990
08/30/1990DE3904797A1 Nichtlinear optische materialien mit vicinalen donor- und akzeptorgruppen Non-linear optical materials having vicinal donor and acceptor
08/29/1990EP0384811A1 Triophene compounds having a non-linear optical activity, materials and devices containing them
08/23/1990WO1990009616A1 Non-linear optical materials with vicinal donor or acceptor groups
08/22/1990EP0383092A2 Chromogenic merocyanine enzyme substrates
08/22/1990CA2010528A1 Thiophene derivatives active in non-linear optics; materials and devices containing the same
08/21/1990US4950754 Chromogenic dicyanomethylenepyrazolinones
08/16/1990EP0382225A1 Filter dyes for photographic elements
08/14/1990US4948895 Benzofuran dyes
08/14/1990US4948893 Novel benzofuran dyes
08/14/1990US4948718 Photographic silver halide elements containing solid particle dispersions of dyes
08/14/1990US4948689 Photoconductor for electrophotography having an amino charge transport compound
08/09/1990CA2009266A1 Filter dyes for photographic elements
07/1990
07/31/1990US4944980 Optical recording material
07/25/1990EP0379157A1 Light-sensitive composition
07/24/1990US4943638 Dyes suitable for sensitization of photoconductive systems
07/18/1990EP0378510A2 Disperse dyes
07/17/1990CA2007996A1 Light-sensitive composition
07/12/1990WO1990007436A1 Cover for mirrors of sun visors of motor vehicles
07/10/1990US4940691 Coloring phthalide compounds and recording materials using the compounds as coloring component
07/10/1990US4940654 Solid particle dispersion filter dyes for photographic compositions
07/04/1990EP0376051A2 Cyanine dyes
07/03/1990US4939080 Silver halide photosensitive material
07/03/1990US4939055 Photosensitive member with butadiene derivative charge transport compound
07/03/1990US4939012 Semiconductor laser sensitive
06/1990
06/26/1990US4937344 Novel sulfur-containing merocyanine dyes
06/26/1990US4937338 Reaction product of cationic dye and heteropolyacid; optical recording media
06/26/1990US4937198 Novel fluorescent dye
06/20/1990CA2006120A1 Cyanine dyes
06/19/1990US4935337 Silver halide photographic material
06/12/1990US4933269 Photographic silver halide element containing infrared filter dyes
05/1990
05/30/1990EP0370693A2 Novel onium salts and the use thereof as photoinitiators
05/22/1990US4927933 Direct positive dimethine cyanine dyes containing 1-aryl-2-heteroaryl indole nucleus
05/22/1990CA1269386A1 SUBSTRATES, COMPOSITIONS, ELEMENTS AND METHODS FOR THE DETERMINATION OF .gamma.-GLUTAMYLTRANSFERASE USING A .gamma. GLUTAMYL AMINOSTYRYLQUINOLINIUM
05/21/1990CA2002873A1 Onium salts and the use thereof as photoinitiators
05/15/1990US4925828 Leuco dyes and recording materials using the same
05/15/1990US4925782 Silver halide photographic light-sensitive element containing water soluble dye compounds
05/15/1990US4925757 Electrophotographic photoreceptor for negative electrification
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