Patents for C09B 11 - Diaryl- or triarylmethane dyes (2,007)
05/1985
05/07/1985US4515971 Chromogens for carbonless copying
04/1985
04/24/1985EP0138177A2 Fluoranes and their use
04/09/1985US4510513 Substrate coated with 2-anilino-3-methyl-6-dibutylamino-fluoran
04/09/1985US4510251 Fluorescent polarization assay for ligands using aminomethylfluorescein derivatives as tracers
04/02/1985US4508904 Fluorane compounds
03/1985
03/26/1985US4507670 Thermosensitive recording material
03/05/1985US4503227 Heat sensitive or pressure sensitive recording
03/05/1985US4502862 Cationic polyazo dyestuffs, their stable solutions, their preparation, and their use
02/1985
02/26/1985US4502067 Heat-sensitive black recording material
02/19/1985US4500897 Heat-sensitive black recording element
02/05/1985US4497894 Benzol(b)furan or benzo(b)thiophene derivative triarylemthane dyes
12/1984
12/04/1984US4486763 Chromogen, acid benzamide compound
11/1984
11/07/1984EP0124377A2 Chromogenic compounds
10/1984
10/30/1984US4480002 Dyestuff-containing microscopic capsule suspension for record materials
10/24/1984EP0122318A2 Heat sensitive record sheet
10/16/1984US4477381 Triaminotriarylmethane colorants
10/03/1984EP0120399A2 Process for the preparation of acid dyes of the triphenylmethane series poor in electrolyte
09/1984
09/25/1984US4473832 Pressure-sensitive recording sheets
09/18/1984US4472581 Imidazomethylene dyes
09/18/1984CA1174671A1 Image dye-providing materials, photographic products and processes
09/18/1984CA1174466A1 Dyestuff-containing microscopic capsule suspension for record materials
09/11/1984CA1174239A1 Photographic products and processes employing triarylmethane compounds
09/11/1984CA1174238A1 Sulfam(na)phthaleins as light-screening dyes
09/11/1984CA1174237A1 Xanthene compounds
09/04/1984US4469516 Aryl-pararosaniline sulfonic acid
08/1984
08/15/1984EP0115821A1 Fluoran compounds
08/15/1984EP0115818A2 Cationic polyazo-dyestuffs, their stabilized solutions, their preparation and use
08/15/1984EP0115701A1 Novel xanthene compounds and their photographic use
07/1984
07/04/1984EP0112710A1 Fluoran derivatives
07/03/1984CA1170254A1 Dyes containing imidazolylmethylene groups
06/1984
06/26/1984CA1169604A1 Soft textured high strength alkali blue pigment
06/13/1984EP0110186A1 Aminomethylfluorescein derivatives
05/1984
05/29/1984US4451398 Dyes containing imidazolymethylene groups
05/16/1984EP0108382A1 Hydrazine derivatives of phthalides and furopyridinones, methods for making and for using said compounds
05/15/1984US4448446 Process for the purification of triphenylmethane compounds and pressure sensitive copysheet containing same
05/01/1984US4446470 Ink-jet color printing system
05/01/1984US4445904 Process for continuously dyeing in the gel state fiber material of acrylonitrile polymers spun from organic solvents with carbinol- or anhydro base of basic dye
04/1984
04/17/1984US4443614 Leuco dyes, phthalein dyes, indicators
03/1984
03/27/1984US4439610 Process for preparing triarylmethane derivatives
03/14/1984EP0102745A2 Triarylmethane compounds, their preparation and use as photoconductive systems
03/14/1984EP0027462B1 Photosensitive element, film unit for forming a diffusion transfer color image, photographic image, diffusion transfer color process and compounds therefor
03/13/1984US4436920 Diarylaminofluoran compounds
02/1984
02/21/1984US4433156 Process for preparing fluoran derivatives
01/1984
01/31/1984US4429142 Xanthene compounds
01/18/1984EP0098728A2 Heat-sensitive black recording material
01/17/1984CA1160640A1 Xanthene compounds and photographic products and processes employing the same
01/11/1984EP0098151A2 Heat-sensitive black recording element
01/03/1984CA1159823A1 Alkyl substituted fluorescent compounds and conjugates
12/1983
12/13/1983US4420627 Hydrazine dyes
11/1983
11/30/1983EP0095114A2 Fluorane compounds, process for their preparation and their use as colour components in copying systems
11/29/1983CA1157863A1 Xanthene compounds and photographic products and processes employing the same
11/23/1983EP0094657A2 Fluorane compounds, process for their preparation and their use as colour components in copying systems
11/22/1983US4416971 Photographic light screening dyes
11/15/1983CA1157025A1 Xanthene compounds and photographic products and processes employing the same
11/10/1983WO1983003840A1 Process for preparing triarylmethane compounds
11/08/1983US4414399 Leuco dyes, carbonless duplicating
10/1983
10/18/1983US4410708 Chromogenic fluoran derivatives and the preparation and use thereof
10/11/1983USRE31412 Fluoran compound as color-former
09/1983
09/20/1983US4405788 Bicyclo nitrogenheterocyclic substituted sulfofluoresceins, fluoresceins and xanthenes
09/13/1983CA1153610A1 Carbonylic halides as activators for phototropic compositions
08/1983
08/16/1983US4399291 Condensation of a benzaldehyde, an aniline, an aminobenzoic acid; oxidation
07/1983
07/19/1983US4394487 Adsorbent for the affinity-specific separation of macromolecular materials
07/19/1983US4394314 Process of preparing aromatic aldehydes by reacting selected aromatic compounds with formamidine acetate and an organic acid anhydride
06/1983
06/29/1983EP0082394A2 A process for the production of aminophthalides and amino benzoic acids
06/28/1983US4390616 Diarylaminofluoran color former
06/15/1983EP0081228A1 Pressure-sensitive recording sheets
06/15/1983EP0081125A1 Cationic dyes, their preparation process and their use in dyeing and mass dyeing
06/14/1983CA1148073A1 Diagnostic agents for the detection of leukocytes in body fluids
06/07/1983CA1147728A1 Lactone compounds containing an indolizine radical
05/1983
05/31/1983US4386216 Zwitterionic carbonium sulfonate xanthene compounds
05/24/1983US4384869 Activation of hypochlorite bleaching of dyes
05/17/1983US4383865 Treated with alkylarylsulfonic acid and an amine
04/1983
04/27/1983EP0077514A2 Process for the continuous dyeing, in a gel state, of fibrous articles spun from acrylonitrile polymer solutions in organic solvents
04/26/1983CA1145341A1 Fluoran carboxylic acids and esters thereof
03/1983
03/02/1983EP0073008A2 Cationic dyestuffs
02/1983
02/22/1983CA1141541A1 Pressure-sensitive record material
01/1983
01/25/1983CA1139942A1 Pressure-sensitive record material
01/25/1983CA1139941A1 Thermally-responsive record material
01/18/1983CA1139599A1 Imaging member including a n,n'substituted ¬1,1'-biphenyl|-4,4'-diamine charge transport material and a bis-or tris- (disubstituted amino phenyl) methane stabilizing compound
12/1982
12/21/1982US4364999 Heat sensitive record sheet
11/1982
11/16/1982US4359574 Thiazine-1,1-dioxide and isothiazole-1,1-dioxide derivatives
10/1982
10/26/1982US4355823 Pressure-sensitive or heat-sensitive recording material
10/12/1982US4353833 Cationic dyes
10/06/1982EP0061624A1 Cationic dyes and their use
09/1982
09/28/1982US4351760 Novel alkyl substituted fluorescent compounds and polyamino acid conjugates
09/22/1982EP0060428A1 Mixtures of triamino-triaryl methane dyestuffs
09/14/1982US4349679 Color-formers in recording materials
09/14/1982US4349454 Preparation of aqueous medium suitable for preparing microcapsules
09/14/1982US4349218 Pressure and heat sensitive elements; carbonless reproduction
09/07/1982US4348330 Process for the production of sulphinates of benzhydrol compounds
08/1982
08/17/1982US4345017 Antihalation agents, filters, antisoilants to adjust color balance of light sensitive elements; color films; self-development/photo/
08/17/1982CA1129855A1 Lactone compounds containing a heterocyclic radical
08/17/1982CA1129848A1 Agent for the detection of leukocytes
08/11/1982EP0057661A2 Process for the production of leuco triaryl methane compounds
07/1982
07/27/1982US4341403 Fluoran compounds, process for preparation thereof, and recording sheets using same
07/20/1982US4340540 Preparation of basic triarylmethane dyestuffs
06/1982
06/23/1982EP0054277A2 Dyestuff-containing microscopic capsule suspension for record materials
06/15/1982US4335226 Polymeric carrier having covalently bonded affine residue group
06/08/1982US4334072 Lactone compounds containing an indolizine radical
05/1982
05/25/1982US4331760 Diagnostic agent for the detection of leukocytes and chromogens useful therein
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