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C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B29/00—Monoazo dyes prepared by diazotising and coupling
C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
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Description
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
Claims (1)
Patent-Anspruch :Patent claim:Verfahren zur Darstellung besonders zur Pigmentfarbenbereitung geeigneter Monoazofarbstoffe,
darin bestehend, daß man die Diazoverbindung aus p-Chlor-o-nitranilin mit i-Aryl-3-methyl-5-pyrazolonen
kombiniert.Process for the representation of monoazo dyes particularly suitable for pigment color preparation,
consisting in that the diazo compound from p-chloro-o-nitroaniline with i-aryl-3-methyl-5-pyrazolones
combined.