| Patents for C09B 11 - Diaryl- or triarylmethane dyes (2,007) |
|---|
| 05/18/1982 | US4330476 Preparation of cationic triarylmethane dyestuffs |
| 05/18/1982 | US4330473 Recording material |
| 04/20/1982 | CA1122208A1 Adsorbent for the affinity-specific separation of macromolecular materials |
| 04/06/1982 | US4323700 Process for preparing benzophenone derivatives |
| 03/24/1982 | EP0048026A1 Heat sensitive record sheet |
| 03/23/1982 | US4321207 Process for preparing triarylmethane dyes |
| 03/09/1982 | US4318859 Process for the preparation of basic dyestuffs |
| 03/09/1982 | US4318848 Process for the neutralization of basic reaction compositions |
| 03/09/1982 | US4318846 Novel ether substituted fluorescein polyamino acid compounds as fluorescers and quenchers |
| 02/16/1982 | US4316036 Benzopyranothiazoles |
| 01/19/1982 | US4311847 Xanthene compounds |
| 01/19/1982 | US4311839 Photobraphic optical filters |
| 01/12/1982 | US4310673 Xanthene compounds |
| 12/22/1981 | US4307017 Light screening dyes in photographic products |
| 12/08/1981 | US4304834 Light-screening dyes; color films; silver halide emulsions |
| 12/08/1981 | US4304833 Diffusion transfer |
| 12/01/1981 | CA1113472A1 Bis-(2,4-dinitrophenyl)-methyl-pyridinium compounds and the preparation thereof |
| 11/24/1981 | US4302393 Fluoran compounds |
| 11/17/1981 | US4301227 Electrophotographic liquid developer |
| 11/10/1981 | US4299917 Impregnation of an absorbent carrier with a sulphonphthalein ester and an activator |
| 11/10/1981 | US4299411 Pressure-sensitive record material |
| 11/03/1981 | US4298215 Carbonless duplicating and marking systems |
| 10/20/1981 | US4295663 3-Indolyl-3-bis-amino-phenyl-phthalide compounds |
| 10/06/1981 | CA1110244A1 Synthesis of chromogenic indolylphenyldihydrofuropyridin-one compounds |
| 09/22/1981 | US4290951 3,6-Di(N-indolinyl)-9-sulfonamidophenyl-xanthenes |
| 09/22/1981 | US4290950 Xanthene dye as optical filter in color photography |
| 09/15/1981 | CA1109069A1 Synthesis of 2,3-dihydrobenz¬d| isothiazole derivatives |
| 09/15/1981 | CA1109061A1 Salts of 1:2-metal-complex dyes free from sulphonic acid groups |
| 09/02/1981 | EP0034725A2 Dyestuffs containing imidazolylethylene groups and their use |
| 08/27/1981 | EP0027462A4 Photosensitive element, film unit for forming a diffusion transfer color image, photographic image, diffusion transfer color process and compounds therefor. |
| 08/25/1981 | US4285696 Dyestuffs derived from triphenylmethane, their preparation and use |
| 08/11/1981 | US4283538 Novel triarylmethane compounds |
| 08/04/1981 | US4282160 Novel triarylmethane compounds |
| 07/15/1981 | EP0032036A1 Triarylmethane dyes, photographic recording materials, a process in which they are used, and methods for forming triarylmethane dyes |
| 07/08/1981 | EP0031698A1 Xanthene dyes and photographic products and processes utilising them |
| 07/07/1981 | US4277407 Novel triarylmethane compounds |
| 07/07/1981 | US4277406 Novel triarylmethane compounds |
| 07/01/1981 | EP0031070A1 Cationic dyestuffs and their use in dyeing paper fabrics |
| 06/30/1981 | US4275905 A photostable colorless marking liquid comprising a chromogen, a solvent, pyridyl blue, and a phenol |
| 06/23/1981 | US4275206 Lactone compounds containing an indolizine radical |
| 06/23/1981 | US4275005 Dyes for heat or pressure sensitive duplication |
| 06/23/1981 | US4274660 Carbonless duplicating and marking systems |
| 06/02/1981 | US4271075 Process for producing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylaminophthalide |
| 05/26/1981 | US4269978 Thiazolylphthalide compounds |
| 05/12/1981 | US4267251 Novel image dye-providing materials, photographic products and processes |
| 04/29/1981 | EP0027462A1 Photosensitive element, film unit for forming a diffusion transfer color image, photographic image, diffusion transfer color process and compounds therefor. |
| 04/28/1981 | US4264704 Novel xanthene dye developers |
| 04/28/1981 | US4264701 Magenta dye developers |
| 04/28/1981 | US4264507 Novel xanthene dye developers |
| 04/28/1981 | US4264506 Reacting with a strong base, reacting the salt with an alkylaryl compound |
| 04/07/1981 | US4260777 Diagnostic agent for the detection of protein in body fluids |
| 04/01/1981 | EP0025912A1 2,7-Dialkylfluorescein derivatives and their use in fluorescence immunoassays |
| 03/31/1981 | US4259498 Arylation with a hydroxy-protected carbocyclic grignard reagent or lithium compound |
| 03/24/1981 | US4258119 Irreversible cleavage to produce colorless compound, diffusion transfer |
| 03/24/1981 | US4258118 Novel xanthene compounds and photographic products and processes employing the same |
| 03/17/1981 | US4256882 Xanthylium dyes, polyamides, cellulose |
| 03/03/1981 | US4254032 Carbazolylmethane compounds |
| 02/24/1981 | US4252975 Color formers |
| 01/27/1981 | US4247470 With water immiscible solvent |
| 01/21/1981 | EP0022521A1 Preparation of cationic triaryl methane dyestuffs |
| 01/21/1981 | EP0022520A1 Preparation of basic triaryl methane dyestuffs |
| 01/20/1981 | US4246318 Thermally-responsive record material |
| 01/13/1981 | US4245096 Useful as ph indicators of for the detection of ammonia |
| 12/30/1980 | US4242513 Lactone compounds containing a heterocyclic radical |
| 12/09/1980 | US4238130 Pressure-sensitive or heat-sensitive recording material |
| 11/12/1980 | EP0018537A1 Pressure and heat sensitive recording material |
| 11/11/1980 | US4233223 Oxidizing 2-(4,4'-bis-dimethylaminobenzhydryl)-5-dimethylaminobenzoic acid, ferricyanide |
| 11/11/1980 | US4232887 Pressure sensitive and heat sensitive elements for recording |
| 10/30/1980 | WO1980002334A1 Magenta dye developers |
| 10/07/1980 | CA1087202A1 Process for manufacturing crystal violet lactone |
| 09/16/1980 | US4223144 For paper in red and violet shades |
| 09/03/1980 | EP0014929A1 Diagnostic means, process for its preparation and its use in determining leucocytes in body fluids |
| 09/02/1980 | US4220357 Diphenylphthalide duplicating and marking systems |
| 09/02/1980 | US4220356 Recording materials containing chromenoindoles |
| 07/29/1980 | CA1082708A1 3- (diphenylamino) phthalides |
| 07/08/1980 | US4211716 Process for isolating triarylmethane dyestuffs |
| 07/08/1980 | US4211436 Pressure-sensitive recording material |
| 06/25/1980 | EP0012283A1 Process for preparing basic dyestuffs |
| 06/24/1980 | US4209618 Color precursors in pressure-sensitive duplicating systems and heat-sensitive marking systems |
| 06/03/1980 | CA1078845A1 Chromogenic derivatives of bis-1,1-disubstituted ethylene ethylene and a process for preparing them |
| 05/13/1980 | US4202820 Pressure-sensitive or heat-sensitive recording material containing a carbazolyl methane compound |
| 05/13/1980 | CA1077481A1 Triazinyl-fluorans as colorless precursors in carbonless duplicating system |
| 03/11/1980 | CA1073154A1 Dyestuff compositions, their preparation and use |
| 03/04/1980 | US4191689 Benzisothiazole-1,1-dioxide and naphtho-1,2-thiazine-1,1-dioxide compounds |
| 03/04/1980 | CA1072963A1 Derivatives of dianhydrides as vinyl color formers |
| 02/20/1980 | EP0008118A1 Process for preparing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylamino phthalide |
| 02/19/1980 | US4189328 Method of producing a greener shade Alkali Blue product and product produced thereby |
| 02/06/1980 | EP0007407A1 Diagnostic composition for the detection of leukocytes in body fluids, sulfophthalein esters as chromogens used for this composition, method of their preparation and their use for preparing diagnostic compositions |
| 12/25/1979 | US4180513 Alkylation, oxidation, leuco dyes, triarylmethane dyes |
| 12/25/1979 | CA1068697A Triazinyl-fluorans as colorless precursors in carbonless duplicating systems |
| 12/18/1979 | CA1068290A1 Process for the preparation of violet dyestuffs of the triphenylmethane series |
| 12/18/1979 | CA1068265A1 Highly sulfonated triphenylmethane compounds, process for their preparation and their use as dyestuffs |
| 11/28/1979 | EP0005518A2 Bis-(2,4-dinitrophenyl)-methyl-pyridinium compounds, methods for their preparation and their use as pH indicators |
| 11/14/1979 | EP0005379A2 Photosensitive compositions containing carbonylic halides as activators |
| 10/23/1979 | CA1064916A1 Process for the preparation of xanthene dyestuffs |
| 09/11/1979 | US4167510 Ester capped alkyleneoxy fugitive tints and method for producing same |
| 08/28/1979 | CA1061055A1 Dye solvents for pressure-sensitive copying systems |
| 08/21/1979 | US4165434 Laser dyes comprising fluorescent and laser dyestuff residues |
| 08/21/1979 | CA1060603A1 Stable concentrated solutions of dyestuffs containing sulfonic acid groups, process for preparing them and their use |
| 07/31/1979 | CA1059527A1 Sensitive ph indicator |