| Patents for C09B 29 - Monoazo dyes prepared by diazotising and coupling (4,940) |
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| 05/18/1976 | US3957752 Quaternized azoanilino toluene sulfonamidoalkylene-amine dyes |
| 05/18/1976 | US3957749 Water-insoluble monoazo pyridine dyes |
| 05/18/1976 | US3957747 6-hydroxypyrid-2-one azo dyestuffs |
| 05/11/1976 | US3956326 3-Amino-isothiazolo[3,4-d]pyrimidines |
| 05/11/1976 | US3956270 β-Modified azo dye |
| 05/11/1976 | US3956265 Monoazo hydroxy pyridone dyestuffs containing a methylene piperidino group |
| 05/11/1976 | US3956263 Monoazo, fiber-reactive |
| 05/11/1976 | US3955919 Dyestuff mixtures and process for dyeing polyester fiber therewith |
| 05/11/1976 | US3955918 Azo derivatives or pyridine N-oxide for use in hair dye compositions |
| 05/04/1976 | US3954476 Diffusable dye-releasing compounds which are cleavable upon oxidation |
| 05/04/1976 | US3954396 Dyeing synthetic materials with a dodecyl benzoicacid ester-azo-(3-cyano-4-methyl-6-hydroxy-2-pyridone) |
| 05/04/1976 | US3954395 Mixtures of dyestuffs |
| 04/27/1976 | US3953420 Azo pigments derived from 2-hydroxy-3-carboxynaphthalene containing a substituted or unsubstituted phthalimide |
| 04/27/1976 | US3953162 Dyeing process |
| 04/20/1976 | US3951942 Phenyl-azo-tetrahydroquinoline azo compounds |
| 04/20/1976 | US3951592 Polyester fabric materials dyed with monoazo dyes made from 4-amino-7-nitrobenzotriazole |
| 04/20/1976 | US3951591 Azo dyes |
| 04/13/1976 | US3950347 Naphtholactam dyestuffs |
| 04/13/1976 | US3950321 Disperse azo dyes of the 2,6-diaminopyridine series |
| 04/13/1976 | US3950130 Thiazole-azo dyes and the coloration of polyester textile fibers therewith |
| 04/06/1976 | US3948880 Phenyl-azo-phenyl compounds of low solubility in water |
| 04/06/1976 | US3948879 Phenylazonaphtholsulfonic acids having a substituted anilino group in the 6-position of the naphthalane ring |
| 04/06/1976 | US3948877 Polyacrylonitrile, acid modified polyesters or polyamides |
| 03/30/1976 | US3947247 Stabilizer composition for dyestuffs |
| 03/09/1976 | US3943121 Monoazo compounds from 3-aminobenzisothiazoles and substituted α-naphthylamine couplers |
| 03/09/1976 | US3943120 Water insoluble |
| 03/02/1976 | US3941766 Azo compounds from pigments of a heterocyclic-substituted aniline coupled to a 2,6-dihydroxy-4-methyl-3-cyano or -3-carbamoylpyridine |
| 02/17/1976 | US3939283 Colored foodstuffs and beverages |
| 02/17/1976 | US3939176 1-phenyl-3-phenylureido-pyrazolones |
| 02/17/1976 | US3939142 Phenylazophenyl dyestuff |
| 02/03/1976 | US3936437 Monoazo compounds derived from 2-hydroxymethyl-amino benzoic acids and 2,6-dihydroxypyridines |
| 02/03/1976 | US3936435 Cationic heterocyclic-azo-heterocyclic compounds from 5-aminoimidazo-(1,2-A)pyridines |
| 02/03/1976 | US3936266 Trihalo monoazo dyestuffs |
| 01/27/1976 | US3934972 For cellulose or blends with polyester, carboxylated dye |
| 01/20/1976 | US3933886 Diamino-nitro-benzene compounds |
| 01/13/1976 | US3932381 Diffusion transfer color photography |
| 01/13/1976 | US3932122 Azo compounds, their manufacture and use |
| 01/06/1976 | US3931145 Keto-amido containing phenylazophenyl dyestuffs |
| 01/06/1976 | US3931144 Non diffusing photography |
| 01/06/1976 | US3930791 Monoazo dye |