| Patents for C09B 31 - Disazo or polyazo dyes of the type a b c, a b c d, or the like, prepared by diazotising and coupling (1,445) |
|---|
| 01/11/1977 | US4002603 Polyvalent metal salts of 7-hydroxy-8-[p-(phenylazo)phenylazo]-1,3-naphthalenedisulfonic acid for dyeing fiberglass |
| 01/11/1977 | US4002424 Solubility and substantivity |
| 01/04/1977 | US4001205 Water-soluble, fiber-reactive phenylazodihydroxy, methyl, cyanopyridine dyestuffs |
| 01/04/1977 | US4000985 Azo dyes having a high solubility in petroleum fuels |
| 12/21/1976 | US3998802 Polyamides, cellulose esters, polyesters, polyacrylonitriles |
| 12/14/1976 | US3997522 Polyamides |
| 10/19/1976 | US3987027 Phenyl azophenyl dyestuff |
| 10/19/1976 | US3987026 Transiently water-soluble non-heterocyclic azo and disazo disperse dyestuffs |
| 10/19/1976 | US3986827 And n-methyl-2-pyrrolidone |
| 09/28/1976 | US3982946 Bis-azo pyrazolone type dye developer and light-sensitive material |
| 09/07/1976 | US3979378 Water-soluble azo dyes having a substituted 2-hydroxypyridone (6) coupling component |
| 08/31/1976 | US3978040 Process for the preparation of cyanoazo compounds by reacting halogenoazo compounds with CuCN in an aqueous media in the presence of a nitrogen base |
| 08/24/1976 | US3978039 Polyamides |
| 08/17/1976 | US3975379 Dihydroindoles and indolenine dyestuffs |
| 08/10/1976 | US3974155 2 AND 3-Substituted-4-(heterocyclic-amino-sulfonyl)benzene sulfonamides |
| 08/03/1976 | US3972676 Exhaust process for the dyeing of synthetic organic textile material |
| 07/27/1976 | US3971771 Dyes for polyesters |
| 07/27/1976 | US3971770 Disulfimide disazo dyestuffs |
| 07/27/1976 | US3971769 Sulfoalkyl aminophenyl disazo dyes |
| 07/27/1976 | US3971738 Heavy metal complexes of azo compounds containing a halogeno-2,3-dihydroxy pyridine coupling component |
| 06/29/1976 | US3966706 2,6-Dihydroxy-3-cyano-4-methylpyridine containing azo dyes which contain a functional amino group |
| 06/15/1976 | US3963418 Yellow disazo acid dye solution |
| 06/01/1976 | US3960831 Disazo dyestuffs containing amino azo benzene sulfonic acid and phenolic or naphtholic couplers |
| 05/25/1976 | US3958930 Deep-dyed nylon fiber and dyed styling yarn |
| 05/18/1976 | US3957796 Cerebral vasodilators |
| 05/18/1976 | US3957747 6-hydroxypyrid-2-one azo dyestuffs |
| 05/18/1976 | US3957425 Concentrated acid red 151 dye-surfactant solution of 15 to 25% |
| 05/11/1976 | US3956268 Substituted phenyl-azo-phenylene-azo-phenyl dyes |
| 05/11/1976 | US3956267 Indole-containing disazo dyestuffs having a sulfatoalkyleneoxy-substituent |
| 04/27/1976 | US3953162 Dyeing process |
| 04/20/1976 | US3951944 Fiber-reactive, water-soluble disazo dyes containing an N-B-sulfoethylamide group |
| 04/20/1976 | US3951942 Phenyl-azo-tetrahydroquinoline azo compounds |
| 04/20/1976 | US3951590 Disazo dyes |
| 04/13/1976 | US3950321 Disperse azo dyes of the 2,6-diaminopyridine series |
| 04/13/1976 | US3950128 Light fastness, cellulose |
| 04/06/1976 | US3949065 Composition and method for the detection of syphilis |
| 03/30/1976 | US3947435 Disazo acid compounds containing one sulphonic acid group and one phosphonic or methyl-phosphinic acid group |
| 03/23/1976 | US3945992 Disazo dyes for polyamides |
| 03/09/1976 | US3943120 Water insoluble |
| 01/27/1976 | US3934972 For cellulose or blends with polyester, carboxylated dye |
| 01/13/1976 | US3932649 2 And 3-substituted-4-(heterocyclic-amino-sulfonyl)benzene sulfonamides as cerebral vasodilators |
| 01/13/1976 | US3932379 Water-soluble maroon and rubine sulphodiphenylazophenyl- or naphthylazoaniline dyes for polyamide fibers |
| 01/13/1976 | US3932378 For polyamides, wool, nylon |
| 01/13/1976 | US3932376 Dyeing polyamides |
| 01/06/1976 | US3930794 Process for the dyeing of synthetic fiber materials from organic solvents |