C09B 11 - Diaryl- or triarylmethane dyes

Patents for C09B 11 - Diaryl- or triarylmethane dyes (2,007)
03/1988
03/01/1988	US4728633 Recording material
02/1988
02/23/1988	US4727162 Color formers for heat or pressure recording material
02/23/1988	US4727140 Chromogenic 4,4-diaryl-2-oxobenzo-3,1-oxazines
02/23/1988	US4727056 Colorless dye and fluoran derivative; lightfastness
01/1988
01/19/1988	US4720449 Di- or triarylmethane
01/13/1988	EP0252683A2 Process and reagents for DNA sequence analysis
01/07/1988	EP0250558A1 Novel compounds and novel recording material using the same.
12/1987
12/09/1987	EP0248176A1 Electroscopic toners containing rhodamine ester dyes and quenching dyes therefor and their use
12/08/1987	US4711832 Colored electroscopic toners containing quenched esterified rhodamine dyes
11/1987
11/10/1987	US4705776 Recording material containing chromogenic 3,3-bisindolyl-4-azaphthalides
09/1987
09/24/1987	WO1987003541A3 Novel compounds and novel recording material using the same
09/23/1987	EP0237915A2 Chromogenic phthalides, their preparation and use
09/22/1987	US4695640 Addition compound of fluoran compounds and ketone
09/22/1987	US4695633 Chromogenic 4,4-diaryl-dihydroquinazolones, their preparation and their use
09/22/1987	US4695408 Preparation of trisphenol methanes
09/15/1987	US4694088 Fluoran compounds
09/02/1987	EP0234394A2 Highly concentrated stable solutions of dyes
08/1987
08/18/1987	US4687862 Fluoran compounds
08/18/1987	US4687853 Imidazo[1,5-A]pyridylmethanes
07/1987
07/22/1987	EP0229372A1 Pressure sensitive copying material
07/14/1987	US4680598 Red color forming by reaction with an acidic developer
07/07/1987	US4678613 Process for the purification of triphenylmethane compounds
07/01/1987	EP0226860A1 Simultaneous method of dyeing and permanent waving of the hair
06/1987
06/30/1987	US4677203 Chromogenic fluoran derivatives
06/23/1987	US4675407 Ring-substituted 4-azaphthalides
06/18/1987	WO1987003541A2 Novel compounds and novel recording material using the same
06/18/1987	WO1987003474A1 Process for simultaneous dyeing and permanent forming of hair
06/16/1987	US4673635 Triphenyl methane derivatives and method of quantitatively measuring an oxidative substance
06/10/1987	EP0224568A1 Thermal imaging method and element and thermosensitive compound.
06/09/1987	CA1222602A1 Process for the preparation of easily dispersible, high color strength, powdered alkali blue pigments
05/1987
05/26/1987	US4668967 Pressure-sensitive or heat-sensitive copying paper
05/26/1987	US4668622 Phenolsulphonphthaleinyl-β-D-galactosides and diagnostic agents containing them
05/12/1987	US4665199 Chromogens for heat-sensitive or pressure-sensitive recording
04/1987
04/21/1987	US4660060 Color-forming for transfer imaging; xerography
04/15/1987	EP0218010A2 Ligand detection method and substituted carboxyfluorescein tracers therefor
04/07/1987	CA1220204A1 Fluorene compounds
03/1987
03/12/1987	DE3531272A1 Process for the preparation of esterified Rhodamine dyestuffs
03/04/1987	EP0211968A1 Heat-sensitive recording material
03/03/1987	US4647675 Rhodamine dyes
02/1987
02/17/1987	US4644377 Fluoran derivatives and recording material using the same
02/03/1987	US4641160 Recording system utilizing phthalide derivatives as colorless chromogenic material
02/03/1987	US4640893 Novel rhodamine derivatives as fluorogenic substrates for proteinases
02/03/1987	CA1217478A1 Aminomethylfluorescein derivatives
01/1987
01/07/1987	EP0207635A2 Chromogenic compounds
12/1986
12/30/1986	US4632987 Formylation, hydrolysis, condensation of benzene and naphthalene compounds
12/30/1986	US4632783 Triarylmethane dyes
12/30/1986	EP0206114A2 Novel substituted phthalides and furopyridinones, preparation thereof and use thereof as color formers
12/18/1986	WO1986007313A1 Thermal imaging method
12/18/1986	WO1986007312A1 Thermal imaging method
12/17/1986	EP0205069A2 2,2-Diaryl-chromenothiazoles, their preparation and their use as recording materials
11/1986
11/20/1986	EP0201751A2 4'-aminomethyfluorescein derivatives for use in fluorescence polarization immunoassys
11/05/1986	EP0199963A1 Ethosuximide assay tracers, immunogens and antibodies
10/1986
10/28/1986	US4619784 Xanthene derivatives
10/22/1986	EP0198303A1 Anodic oxidation process of water soluble leucotriphenyl methane dye compounds
10/14/1986	US4617402 Novel xanthene compounds and their photographic use
10/07/1986	US4616239 4-hydroxy-4'-isopropoxydiphenylsulfone and its use for color-developable recording material
09/1986
09/23/1986	US4613879 Chromogenic recording materials
09/23/1986	US4613465 Hydrogen peroxide, body fluids, enzymes
09/09/1986	CA1211115A1 Xanthene compounds and their photographic use
09/03/1986	EP0193036A2 Use of an optical filter with a reversible change of colour
08/1986
08/27/1986	EP0192328A1 Chromogenic compounds
08/12/1986	CA1209582A1 Method for sanitizing toilets
08/05/1986	CA1209156A1 Method for sanitizing toilets
07/1986
07/29/1986	US4603202 Fluoran colorants for recording systems
07/22/1986	US4602263 For optical recording media
07/16/1986	EP0187329A1 Chromogenic 3,1-benzoxazines
07/01/1986	US4598151 Cationic dyestuffs, a process for their preparation, and their use for dyeing and mass-coloring
06/1986
06/17/1986	US4595536 Tertiary amine-substituted
05/1986
05/20/1986	US4590498 Chromogenic recording materials
05/14/1986	EP0180813A1 Chromogenic 4,4-diaryldihydrochinazolones, their preparation and use
05/14/1986	EP0180643A1 Fluoran compounds
05/06/1986	US4587343 Color formers in pressure-sensitive or heat sensitive recording materials
04/1986
04/30/1986	EP0179378A1 Chromogenic 4,4-diaryl-2-oxobenzo-3,1-oxazines, their preparation and use
04/16/1986	EP0178095A2 Process for preparing ink for ink jet printer
03/1986
03/19/1986	EP0174371A1 Triphenylmethane derivatives and method for determining oxidative substances using them as color-forming component
03/12/1986	EP0174054A2 Heat-sensitive element for use in a thermal imaging method
02/1986
02/04/1986	US4568766 4-Hydroxy-4'-isopropoxydiphenylsulfone and its use for color-developable recording material
01/1986
01/28/1986	US4566999 Process for the preparation of acid dyestuffs of low electrolyte content of the triphenylmethane series
01/15/1986	EP0167998A2 Rhodamine dyestuffs
01/14/1986	US4564679 Azaphthalides
12/1985
12/31/1985	US4562449 Color formers for pressure sensitive or heat sensitive recording material
12/11/1985	EP0164018A2 Chromogenic 4,4-diaryl-dihydroquinazolones, their preparation and use
12/10/1985	US4557862 Rhodamine derivatives as fluorogenic substrates for proteinases
11/1985
11/19/1985	US4554555 Recording method by use of inks
10/1985
10/10/1985	WO1985004414A1 Fluoran compounds
10/02/1985	EP0156214A2 Imidazo [1,5-a] pyridyl methane and imidazo [1,5-b] pyridazinyl methane derivatives, their preparation and recording materials containing them
10/01/1985	US4544936 Gluotsn volot gotmrtd; high whiteness, less fogging and fading
09/1985
09/17/1985	US4542395 Heat-sensitive recording material
09/12/1985	WO1985003942A1 Triphenylmethane derivatives and method for determining oxidative substances using them as color-forming component
09/03/1985	US4539579 Electrochromic recording
08/1985
08/20/1985	US4536368 Oxidizer and trarylmethane dye agent
08/20/1985	US4536367 Method for sanitizing toilets
08/20/1985	US4536220 Fluoran derivatives as new compounds and recording system utilizing the same as colorless chromogenic material
08/13/1985	US4535348 2-arylamino-3-halo-6-dialkyamino-substituted; for pressure , heat and light sensitive sheets; stability
08/13/1985	US4535190 Phenolic compounds and a heat-sensitive recording material containing the same
08/06/1985	US4533499 Process for the production of triaryl methane compounds
07/1985
07/09/1985	US4528136 Process for preparing 2-[bis(aryl)methyl]benzoic acids
07/03/1985	EP0146866A2 Phenylsulfonephthaleinyl-beta-D-galactosides, methods for their preparation and their use in the determination of beta-D-galactosidase
06/1985
06/19/1985	EP0144958A2 Method of flushing
05/1985
05/08/1985	EP0140833A1 5- and 6-Azaphthalides, their mixture of isomers, process for their production and their use in recording materials which are sensitive to pressure and heat

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