Patents for C09B 57 - Other synthetic dyes of known constitution (5,224)
01/1986
01/07/1986US4563532 Process for the preparation of Δ4 -1,3,4-oxadiazolin-2-one compounds
01/07/1986US4563188 Shades of green
12/1985
12/04/1985EP0163609A2 Process for dyeing a high molecular organic material, polycyclic compounds and their preparation
11/1985
11/26/1985US4555569 Pressure and heat sensitive elements
11/26/1985US4555396 Use of pyrylium and thiapyrylium compounds as biological stains
11/12/1985US4552565 Hair dyes: diresorcyl sulphide, sulphoxide or sulphone coupling agents
11/05/1985US4551265 Fluorescent dyestuffs, processes for their preparation and their use as laser dyestuffs
10/1985
10/29/1985US4550171 Dyeing of polyester fibers
10/15/1985US4547579 Substituted benzopyran compounds
10/08/1985CA1194766A1 Use of pyrylium and thiapyrylium compounds as biological stains
10/02/1985EP0156770A1 Stilbene derivatives
10/02/1985EP0156214A2 Imidazo [1,5-a] pyridyl methane and imidazo [1,5-b] pyridazinyl methane derivatives, their preparation and recording materials containing them
10/02/1985EP0156197A1 Pyrazoline compounds
10/01/1985US4544496 Light-collecting system using coumarin derivatives as energy converters
09/1985
09/25/1985EP0155754A1 Process for preparing squaraine compounds
09/17/1985USRE31986 Manufacture of organic pigments
09/10/1985US4540791 Production of β-amino-α,β-unsaturated carboxylic acid esters
09/03/1985US4539579 Electrochromic recording
09/03/1985US4539161 Amine oxide compounds
08/1985
08/20/1985CA1192211A1 Amphoteric styrene derivatives
08/14/1985EP0151393A2 Azine pigments, their preparation process and their use
08/13/1985CA1191851A1 Coumarin compounds, a process for their preparation, and their use as dyestuffs
07/1985
07/23/1985US4530892 Electroconductive support, photoconductive insulation coating containing a binder and dye
07/23/1985CA1190929A1 Process for dyeing high-molecular organic material, and novel polycyclic pigments
07/16/1985US4529804 Naphthostyril Ni or Cu complexes, a process for their preparation, and high molecular weight organic material pigmented with these metal complexes
07/16/1985CA1190427A1 Photographic material comprising a layer capable of being colored by organic dyes containing a ni complex of a 2,2'-bisphenol derivative
07/02/1985US4526705 Emission surface and absorption surface, fluorescence center containing coumarine compound
06/1985
06/26/1985EP0146269A2 Hetero-polycyclic aromatic compound
06/25/1985US4525592 Process for squaraine compositions
06/25/1985US4525591 Browqn pigment
06/25/1985US4525588 For heat and pressure sensitive recording materials
06/19/1985EP0145225A2 Record material
06/19/1985EP0144740A2 Hair dyeing composition
06/18/1985US4524220 Process for the preparation of squaraine compositions in presence of amine component
06/18/1985US4524219 Reacting an alkyl aquarate with an n,n-dialkylaniline in the presence of an alkanol
06/12/1985EP0144206A2 Process for synthesising squaraine compositions
06/11/1985US4523035 Process for synthesizing squaraine compositions
06/11/1985US4523018 For pressure and heat sensitive record materials
06/04/1985US4521793 Coloring method and color-forming material
05/1985
05/15/1985EP0141325A2 Red azine pigment
05/07/1985US4515963 Process for producing 1,8-naphtholactam compounds
05/07/1985US4515955 Isoindoline cationic dyes
04/1985
04/30/1985US4514045 Helichromic-smectic liquid crystal compositions and display cells
04/09/1985US4510311 Water-insoluble azolystyryl optical brighteners
04/02/1985US4508899 Colorfast red-orange-yellow organic pigment
04/02/1985US4508811 Optical recording
04/02/1985US4508784 4-Styryl-4'-vinylbiphenyls, the production thereof and use thereof as fluorescent
03/1985
03/27/1985EP0135469A1 Chromogenic quinazoline compounds
03/27/1985EP0135054A1 Preparations of easily dispersible isoindoline pigments and their use
03/19/1985CA1184179A1 Isoindoline compounds and the manufacture and use thereof
02/1985
02/19/1985US4500718 Pigmenting lacquers
02/19/1985US4500621 Sensitive electrophotographic plates containing squaric acid methine dyes suspended in a binder
02/13/1985EP0133156A2 1,4-Diketopyrrolo-(3,4-c) pyrroles
02/13/1985EP0132818A1 Isoindoline pigments having a strong colouring capacity, their preparation and their use
02/13/1985EP0132812A1 Chromogenic tracers for use in an assay
01/1985
01/29/1985US4496727 Process for the manufacture of metal complexes of isoindoline azines
01/08/1985US4492796 Isoindolenine derivatives, processes for their preparation and their use as intermediate products for the preparation of dyestuffs
01/08/1985CA1180709A1 Process for producing bismethine isoindolines
01/02/1985EP0129765A2 Isoindole derivatives, and their manufacture and use in dyeing polyamides
12/1984
12/25/1984US4490542 1,4-Diketo-pyrrolo[3,4-c]pyrroles
12/11/1984CA1179330A1 Image dye providing materials and photographic products and processing
12/05/1984EP0126753A1 Stabilizers for dye lasers
11/1984
11/13/1984US4482716 Dye bleaeh process; antihalation agents
11/13/1984US4482496 Stilbene compounds
11/06/1984US4481270 Double charging sequence
10/1984
10/30/1984US4480097 Isoindoline colorants
10/30/1984US4480096 Chromogenic quinazolines
10/23/1984US4478598 Amphoteric styrene derivatives useful as fluorescent brighteners
10/09/1984CA1175608A1 Fluorescent brighteners consisting of bis- styrylbenzene compounds, a process for their preparation and their use
10/02/1984US4474952 Organic pigments
09/1984
09/25/1984US4473693 Aminonaphthalimide dyes for intracellular labelling
09/25/1984US4473374 Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers
09/25/1984CA1175070A1 Chlorimated nitro-paraphenylenediamines, process for their preparation and application in dyeing keratinic fibres
09/25/1984CA1175069A1 Tinctorial composition for keratinic fibres and containing nitro-3-orthophenylenediamines; novel nitro-3-orthophenylenediamines used and processes for their preparation
09/18/1984CA1174678A1 Indolizinone dyes and compositions, elements and methods using same
09/18/1984CA1174677A1 Diketopyridine compounds
08/1984
08/22/1984EP0116381A1 Recording element having a pyrypium or thiopyryliumsquarylium dye layer and new pyrylium or thiopyryliumsquarylium compounds
08/22/1984EP0116218A2 Substituted anthracene-type isotropic dyes for liquid crystal display devices
08/21/1984US4466806 Dyeing compositions containing 3-amino-4-nitroanisole derivatives and their use in dyeing keratin fibres as well as certain new said derivatives
08/08/1984EP0115136A2 Cycloalkyl-type isotropic dyes for liquid crystal display devices
08/07/1984US4464284 Mixtures of optical brighteners
07/1984
07/17/1984US4460768 Nickel complex pigments of azines
07/04/1984EP0112552A2 Use of pyrylium or thiapyrylium compounds as biological stains
07/03/1984CA1170274A1 Dye compositions containing 3-amino-4-nitroanisole, their use for dying keratinous fibers, new compounds used and process for preparing the same
07/03/1984CA1170254A1 Dyes containing imidazolylmethylene groups
06/1984
06/26/1984CA1169691A1 Color-forming para-sulfonamidodiphenylamine dye precursor and sulfonimide dye in photographic material and process
06/19/1984US4455436 N-Acyl-o-phenylenediamines
06/19/1984US4455424 Triazinyl compounds as intermediates for producing naphthoquinone derivatives
06/12/1984CA1168914A1 Photographic materials and processes comprising oxoindolizine and oxoindolizinium compounds
06/05/1984US4453252 A pyrazoloazaxanthenoisoquinolinone dye
06/05/1984US4452511 Substituted anthracene-type isotropic dyes for liquid crystal display devices
05/1984
05/29/1984US4451398 Dyes containing imidazolymethylene groups
05/24/1984WO1984001956A1 Stabilizers for dye lasers
05/22/1984US4450093 Indolizinone dyes and compositions, elements and methods using same
05/22/1984CA1167856A1 Pyromellitide color formers for carbonless duplicating systems
05/16/1984EP0108382A1 Hydrazine derivatives of phthalides and furopyridinones, methods for making and for using said compounds
05/15/1984US4448492 Dichroic dye material
05/08/1984US4447350 Mixtures of optical brighteners and their use
05/02/1984EP0107492A2 Helichromic-smectic liquid crystal compositions and display cells
05/01/1984US4446326 Cationic naphtholactam dyestuffs
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