C09B 57 - Other synthetic dyes of known constitution

Patents for C09B 57 - Other synthetic dyes of known constitution (5,224)
05/1977
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
04/1977
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
03/1977
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
02/1977
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
01/1977
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
12/1976
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
11/1976
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
10/1976
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
09/1976
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
08/1976
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
07/1976
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
06/1976
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
05/1976
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

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