Water-insoluble pyrazolone azo dyestuffs

Abstract

Abstract WATER-INSOLUBLE DYESTUFFS ARE PROVIDED HAVING THE FORMULA: A,(D1-(N=N-B(-Z)(-Z''))M-N=N-),(Y-CO-X-OOC-)-BENZENE OR THE FORMULA A,(D2-(N=N-B(-Z)(-Z''))M-N=N-),(Y-COO-X-OOC-)-BENZENE IN WHICH B REPRESENTS A P-PHENYLENE OR P-NAPHTHYLENE RADICAL LINKED TO THE NITROGEN ATOMS, M REPRESENTS THE NUMBERS 0 OR 1, X REPRESENTS AN ALKYLENE RADICAL HAVING UP TO 4 CARBON ATOMS, Z AND Z'' EACH REPRESENT A HYDROGEN OR HALOGEN ATOM OR AN ALKYL, ALKOXY, OR ACYLAMINO GROUP HAVING UP TO 4 CARBON ATOMS, Y REPRESENTS AN ALIPHATIC, ARYLALIPHATIC, AROMATIC OR HETEROCYCLIC RADICAL, D1 REPRESENTS THE RESIDUE OF A COUPLING COMPOUND OF THE BENZENE, DIPHENYLENEOXIDE, INDAZOLE, COUMARIN, ACETYLACETARYLIDE, PYRAZOLONE OR HYDROXY-QUINOLINE SERIES, D2 REPRESENTS THE RESIDUE OF A COUPLING COMPOUND OF THE BENZENE, DIPHENYLENE-OXIDE, INDAZOLE, COUMARIN, ACETYLACETARYLIDE, HYDROXYQUINOLINE, 1 - PHENYL-3-METHYL-PYRAZOLONE OF 1-PHENYL-3CARBONAMIDOPYRAZOLONE SERIES, THE NUCLEI A, B, D1, D2 AND Y CONTAINING NO SOLUBILISING ACID GROUPS. THESE DYESTUFFS ARE USEFUL FOR THE COLOURATION OF HYDROPHOBIC TEXTILE MATERIALS AND MAY BE PREPARED FROM NOVEL DIAZOTISABLE BASES OF THE GENERAL FORMULA: Y-COO-X-OOC-ANILINE IN WHICH X, Y, Z AND Z'' ARE AS DEFINED ABOVE. THE SHADES OBTAINED ARE REMARKABLY FAST TO THERMAL FIXATION, SUBLIMATION, CREASING, COMBUSTION GASES, OVERDYEING, DRY CLEANING, CHLORINE AND WET TESTS. THE RESERVE OF NATURAL FIBRES AND THE DISCHARGEABILITY ARE GOOD. THE FASTNESS TO LIGHT IS REMARKABLE EVEN WITH LIGHT SHADES AND THE DYESTUFFS RESIST BOILING AND REDUCTION AT TEMPERATURES BETWEEN 80* C. AND 220* C.

Inventors

• 👤 Jean Marie Louis Leroy
• 👤 Claude Marie Henri Emi Brouard

Bibliographic Details