Patents for C09B 57 - Other synthetic dyes of known constitution (5,224) |
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05/24/1977 | US4025507 Bis-(triazinylamino) stilbene compounds |
05/17/1977 | US4024144 Polycyclic dyestuffs |
05/17/1977 | US4024132 Azomethine pigments |
05/10/1977 | US4022799 Naphtholactam dyestuffs |
05/10/1977 | US4022772 Optical brightening |
05/10/1977 | US4022771 Record materials and marking systems |
05/10/1977 | US4022770 Coloring |
04/26/1977 | US4020063 Oxadiazepine cationic dyestuffs |
04/26/1977 | US4020056 Di-vinyl phthalides color formers |
04/19/1977 | US4018934 Stabilization of iron - complex colors |
04/19/1977 | US4018907 Coloring food with iron-complexes |
04/19/1977 | US4018796 Monomethine dyestuffs |
04/19/1977 | US4018789 Optical brighteners |
04/12/1977 | US4017486 Cationic alpha-cyano-p-dimethylaminocinnamoyl dyes and paper dyed therewith |
04/12/1977 | US4017483 Coumarino-3,4-oxazoles |
04/12/1977 | US4017311 5-nitro- or phenylsulfonamidodinaphtho-(1,2-b:2',3'-d)furan-7,12-dione pigments |
04/05/1977 | US4016174 Benzoindole phthalides |
04/05/1977 | US4016157 Metal complexes of bis-hydrazones |
03/29/1977 | US4014871 Stilbene compounds |
03/29/1977 | US4014870 Stilbene compounds |
03/22/1977 | US4013642 Heterocyclic compounds containing sulpho groups |
03/15/1977 | US4012370 Mono aryl azo-mono-iminoisoindolinone dyestuffs |
03/01/1977 | US4010162 Substituted phenanthroline pigments |
02/22/1977 | US4009193 Bisstyrylaryl compounds |
02/22/1977 | US4009165 Polyesters |
02/15/1977 | US4008248 Process for the purification of coumarins |
02/15/1977 | US4008166 Optically brightening with a synergistic mixture |
02/15/1977 | US4008097 Co-condensate mixtures of iminoisoindolinones |
02/08/1977 | US4007192 Dye intermediates |
02/08/1977 | US4007188 Coumarin and coumarinimide derivatives |
02/08/1977 | US4007180 Polyesters |
02/01/1977 | US4006162 Plastics, lacquers |
02/01/1977 | US4006146 5-Aza-7-thiadibenzocrysene derivatives |
01/25/1977 | US4005111 Fluorescent dyes |
01/25/1977 | US4005098 Brightening agents |
01/25/1977 | US4005092 Pyrylium dyes having a fused, rigidized nitrogen-containing ring |
01/18/1977 | US4003898 Process for the manufacture of cationic dyestuffs |
01/11/1977 | US4002635 Isoindolinone compounds useful in preparing heavy metal containing pigments |
01/11/1977 | US4002619 Coumarine dyestuffs of the dispersion series |
01/04/1977 | US4001253 Naphtholactam dyestuffs |
01/04/1977 | US4001221 4-stilbenyl-5-cyano-1,2,3-triazoles |
01/04/1977 | US4001130 Optical brighteners |
12/28/1976 | US4000141 Substituted tetrahydro quinoline cationic dyestuffs |
12/28/1976 | US4000130 Cationic dyestuffs |
12/14/1976 | US3997560 Process for the manufacture of thianthrene |
12/07/1976 | US3996213 1,2,4-Triazolyl-(1) derivatives, a process for their preparation and their use as optical brighteners |
11/30/1976 | US3994921 Iminoisoindolenine pigments, process for their manufacture and their use |
11/30/1976 | US3994907 Coumarin derivatives, their preparation and their use as optical brightening agents |
11/30/1976 | US3994899 Methine |
11/30/1976 | US3994834 Triazolyl stilbene brighteners method of preparing and detergents therewith |
11/23/1976 | US3993789 Food coloring |
11/23/1976 | US3993670 Optical brighteners |
11/23/1976 | US3993658 Metal chelate pigments |
11/23/1976 | US3993637 Chelatable triazolylazo-N-alkyl(cycloalkyl)acylacetamide dyes |
11/16/1976 | US3992405 Cationic dyestuffs |
11/16/1976 | US3992140 Acid-modified textile fibers |
11/09/1976 | US3991054 For polyesters |
10/26/1976 | US3988346 Fluorescent dyes |
10/26/1976 | US3988323 Metal complexes of bishydrazides |
10/19/1976 | US3987045 Polyesters |
10/19/1976 | US3987023 Azo pigment metal complexes |
10/19/1976 | US3986888 Process for the preparation of the β-modification of tetrabromo-8,8'-dihydroxynapthazine in pigment form |
10/12/1976 | US3985772 3-Amidinocoumarin dyes |
10/12/1976 | US3985763 Dyestuffs |
09/28/1976 | US3983117 Optical brighteners |
09/21/1976 | US3981677 Oxidative hair dye compositions containing N-substituted o-phenylenediamines and method for their use |
09/14/1976 | US3980713 Fluorescent brighteners |
09/14/1976 | US3980651 Polyester fibers |
09/14/1976 | US3980427 Exhaust process for the dyeing of synthetic fiber materials |
09/07/1976 | US3979389 Anionic dyes |
09/07/1976 | US3979386 Iminoisoindoline pigments and processes for the preparation thereof |
08/24/1976 | US3976656 1,4-Bis(5-p-n-butoxyphenyloxazol-2-yl)benzene and the preparaion thereof |
08/10/1976 | US3974178 Polyester, polyamide, polyacrylonitrile |
08/10/1976 | US3974172 Benzofuran derivatives |
08/10/1976 | US3974149 Azomethine pigments |
08/03/1976 | US3972877 Butadiene derivatives, process for their preparation and their use as optical brighteners |
07/27/1976 | US3971821 From an aniline and a formamide |
07/27/1976 | US3971808 Spirodipyrans and chromogenic materials for copying processes |
07/27/1976 | US3971807 Benzindole |
07/27/1976 | US3971805 Iminoisoindolinone pigments and process for their manufacture |
07/20/1976 | US3970675 Disperse dyestuffs |
07/20/1976 | US3970649 Bisazomethine metal complexes |
07/20/1976 | US3970647 Optical brightener |
07/13/1976 | US3969364 Multistage |
07/13/1976 | US3969346 Naphtholactamcarbinols color formers, their manufacture and use in pressure-sensitive or thermoreactive recording material |
07/06/1976 | US3968119 Vic-triazole compounds |
06/29/1976 | US3966755 Optical brighteners |
06/29/1976 | US3966753 Thiazolidinylidene isoindoline pigments |
06/15/1976 | US3963747 Basic arylmercaptonaphtholactam dyes |
06/15/1976 | US3963715 Substituted pyrazines |
06/15/1976 | US3963708 Bis-azomethine metal complex colorants from hydroxycoumarin derivatives or hydroxychromone derivatives |
06/08/1976 | US3962245 Dialkylsulfonamide dyes |
06/08/1976 | US3962219 Optical brighteners |
06/08/1976 | US3961879 Dye composition for keratinic fibers containing a phenol coupler |
06/01/1976 | US3960867 Reducing vat dye to leuco compound, oxidation |
05/25/1976 | US3959310 Cationic dyestuffs |
05/25/1976 | US3959285 Chemical intermediates for pigments and dyes |
05/18/1976 | US3957829 Certain dinaphtho[1,2-b;2',3'-d]-furan-7,12-diones |
05/11/1976 | US3956283 Optical brighteners |
05/11/1976 | US3955978 Electrophotographic recording material |