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)
11/1980
11/25/1980US4235806 Cationic α-cyano-p-(N-benzyl-N-ethylamino)cinnamoyl dyes
11/18/1980US4234677 Antihalation agents, mordants, and filters
11/04/1980US4232121 Bactericides
11/04/1980US4231942 Styryl compounds
10/1980
10/21/1980US4229526 Light-sensitive photographic recording material
10/15/1980EP0017132A1 Dyestuffs, their preparation and utilisation
09/1980
09/30/1980US4225705 Quaternization of a benzothiazole, condensed with a benzothiazolium betaine
09/30/1980CA1086759A1 Cationic styryl dyestuffs
09/17/1980EP0015602A1 Novel light-absorbing methine dyes and photographic materials containing them
09/17/1980EP0015601A1 Photographic silver halide materials comprising light-absorbing dyes
09/17/1980EP0015511A2 Use of oligo- or polymeric compounds in dyeing lignin-free paper material
09/16/1980CA1085843A1 Yellow methine dyes for hydrophobic textile material
09/09/1980US4221911 Naphtholactam dyestuffs
09/02/1980US4220449 Quaternated polyamine salts
08/1980
08/26/1980CA1084509A1 Stilbene compounds and process for preparing same
08/26/1980CA1084496A1 2-aryl-6-arylidene-1-(substituted aminoalkoxy)-1- cyclohexenes
08/19/1980US4218432 Coloring agent and a composition including the same for coloring toilet bowl flushing water
08/19/1980CA1084061A1 Divinyl stilbenes as optical brighteners
08/06/1980EP0014177A1 Bis-styrylbenzenesulfonic acid compound, process for its preparation and its use for optical bleaching of organic fibrous materials
08/06/1980EP0013899A2 Basic dyestuffs and their use in dyeing paper
08/06/1980EP0013751A2 Use of quaternised compounds in dyeing paper
08/05/1980US4216105 Compositions for the optical whitening of organic materials and use thereof
07/1980
07/15/1980US4212644 Pyrrolidone(1,2-a)benzimidazolium cyanine dyes
07/09/1980EP0013257A2 Process for increase of light-fastness, fluorescence polarisation and fluorescence quantum efficiency of cyanine dyestuffs, stabilized cyanine dyestuff preparation, process for its preparation and its use
06/1980
06/25/1980EP0012300A2 Coloured polymeric compounds, process for their preparation and their application to the dyeing of paper
06/24/1980US4209579 Cyanine dyes
06/12/1980WO1980001213A1 Dry silver photo-sensitive compositions,dyes for use therein and preparation of such dyes
06/11/1980EP0012020A1 Dry silver photo-sensitive compositions, dyes for use therein and preparation of such dyes
06/10/1980CA1079292A1 O-nitro-o-azaarylidene photobleachable dyes and photographic elements utilizing them
06/10/1980CA1079109A1 Electrophoretic imaging process in which an electrically photosensitive colorant is subjected to an applied field
05/1980
05/06/1980USRE30267 Multilayer analytical element
05/06/1980US4201713 Naphthostyril dyestuffs
05/06/1980US4201707 Methine dyestuffs containing a phenyl azo group
04/1980
04/29/1980US4200464 Alkyl-3,4-methylenedioxy-a-cyanocinnamates
04/16/1980EP0009679A1 Fluorescent dyestuffs of the stilbene series, process for their preparation and their use in the whitening of organic materials and as laser dyestuffs
04/15/1980US4198516 Isatin-derived dispersed dyes
04/08/1980US4197120 Electrically photosensitive particles containing colorant having absorption maximum greater than 410 nanometers
04/01/1980US4196229 Substituted divinyl stilbenes as optical brighteners
04/01/1980CA1074786A1 Metal complexes of bishydrazides
03/1980
03/11/1980CA1073462A1 Cationic alpha-cyano-p-dimethyl aminocinnamoyl dyes
03/04/1980CA1072963A1 Derivatives of dianhydrides as vinyl color formers
02/1980
02/19/1980US4189429 Anthraquinone, naphthaquinone, monoazo and styryl dyes
02/06/1980EP0007372A1 Methods and reagents for the assay of enzymes
02/05/1980US4187225 P-(alkylsulfonamido)phenylhydrazine
01/1980
01/29/1980CA1070677A1 1:1-azomethine-metal-complex dyestuffs
01/22/1980US4184977 Fluorescent dyestuffs
12/1979
12/25/1979US4180663 Formylation of aromatic amine, condensation with malononitrile generated in situ from cyanoacetamide
12/18/1979US4179294 Silver halide light-sensitive element containing dye
12/04/1979CA1067329A1 Photographic layer coloured by a methine derivative of an oxonol dye
11/1979
11/27/1979US4176229 Basic dyes
11/27/1979US4175956 Electrophotosensitive materials for migration imaging processes
11/20/1979CA1066704A1 Cyanine dyes containing an imidazo-(4,5-b)-quinoxaline nucleus and their use in photographic elements
11/13/1979CA1066292A1 Mixed complexes of methine dyes
10/1979
10/30/1979US4172944 Water insoluble styryl dyestuffs having hetero-aryl methylene substituent
10/30/1979CA1065178A1 Thiazoline or selenazoline derivatives as sensitizers for photocrosslinkable polymers
10/23/1979CA1064951A1 Styryl-like compounds and preparing the same
10/23/1979CA1064858A1 Color-changing indoline-heterocyclic compounds
09/1979
09/19/1979EP0004061A2 Method for determining leukaemic cells
08/1979
08/28/1979US4166068 Styryl dyes
08/28/1979US4165984 Electrophoretic migration imaging process
08/22/1979EP0003565A1 Disperse dyes based on isatin derivatives and process for their preparation, and their use for dyeing and printing synthetic fibres
08/07/1979US4163671 Pyrrolidine or thiazolidine derivative
08/07/1979CA1059813A1 Photographic sensitive materials having a dyed layer
07/1979
07/24/1979CA1059130A1 Dyes containing an isoindole nucleus
07/17/1979US4161601 Methine dyes from 1-[2-[(2-benzothiazolyl)thio]alkyl]-1,2,3,4-tetrahydro-2,2,4,7-tetramethylquinoline compounds
07/03/1979CA1057745A1 Styryl compounds
06/1979
06/26/1979US4159379 Dispersion dyestuffs of the naphtholactam series
06/26/1979US4159192 Cyano-methine dyes
06/05/1979CA1055942A1 Di-vinyl color formers
06/05/1979CA1055941A1 Vinyl color formers
06/05/1979CA1055937A1 2-aminoalkyl-7-substituted-3,3a,4,5,6,7-hexahydro-3-substituted-2h-pyrazolo (4,3-a) pyridines
05/1979
05/29/1979CA1055500A1 Metal complex pigments
05/22/1979US4156090 Intermediates for dyes for foods and pharmaceuticals
05/22/1979CA1055140A1 Color display device
05/22/1979CA1055021A1 Azo compounds, process for their preparation and their use
05/17/1979WO1979000255A1 Enzyme assays
05/08/1979CA1054034A1 Multilayer analytical element
05/01/1979CA1053835A1 Modacrylic filaments with improved coloristic properties
05/01/1979CA1053834A1 Modacrylic filaments with improved coloristic properties
04/1979
04/24/1979US4151162 Hair dyes
04/17/1979CA1052795A1 Cyanine dyes and their use as spectral sensitizers in direct positive photographic materials of the spectrally sensitized type
04/03/1979US4147862 Method of preparing styryl-like compounds
04/03/1979US4147554 5,6-dihydro-pyrrolo(2,1-a)isoquinolines
04/03/1979US4147553 Supersensitized photographic emulsion
03/1979
03/27/1979US4146707 Heterocyclic ethenyl or vinyl heterocyclic or aromatic compounds for migration imaging processes
03/20/1979US4145537 Benzothiazolium dyes
03/20/1979US4145215 Photoconductive pigments
03/20/1979CA1050992A1 Azomethine pigments
03/20/1979CA1050990A1 Cyanine dyes and their use as spectral sensitizers in direct positive photographic materials of the spectrally sensitized type
03/13/1979USRE29930 Direct-positive silver halide emulsion fogged with low levels of reduction and gold fogging agents
03/13/1979US4144258 1:1-Heterocyclic azo methine-metal complex dyestuffs
03/06/1979US4143228 Pyrazolinyl indolium dyestuffs
03/06/1979CA1050024A1 Dyestuffs
02/1979
02/27/1979US4142044 Fluorescent dyes
02/27/1979US4142043 Substituted 2-imidazolin-5-ones
02/27/1979US4141881 Process for dyeing linear polyesters in the melt
02/13/1979US4139274 Apparatus for changing color
02/06/1979US4138570 Indoline linked to 2-pyrazoline
01/1979
01/24/1979EP0000346A1 Quinoxaline compounds, process for their manufacture and their use as brighteners for organic materials, and the materials brightened therewith
12/1978
12/19/1978US4130430 Oxonol dye
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