DE295300C - - Google Patents

Info

Publication number
DE295300C
DE295300C DENDAT295300D DE295300DA DE295300C DE 295300 C DE295300 C DE 295300C DE NDAT295300 D DENDAT295300 D DE NDAT295300D DE 295300D A DE295300D A DE 295300DA DE 295300 C DE295300 C DE 295300C
Authority
DE
Germany
Prior art keywords
sulfur
hand
acids
indophenolsulfonic
alkylcarb
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT295300D
Other languages
German (de)
Publication of DE295300C publication Critical patent/DE295300C/de
Active legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B49/00Sulfur dyes
    • C09B49/10Sulfur dyes from diphenylamines, indamines, or indophenols, e.g. p-aminophenols or leucoindophenols

Description

BERLIN, GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN, PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung von blauen Schwefelfarbstoffen, darin bestehend, daß man die aus Carbazol- oder N-Alkylcarb'azolmonosulfosäuren einerseits und Nitrosophenolen oder p-Aminophenolen andererseits erhältlichen Indophenolsulfosäuren oder deren Leukoverbindungen mit Schwefel und Schwefelalkalien erhitzt.Process for the preparation of blue sulfur dyes, consisting in that one from carbazole or N-alkylcarb'azole monosulfonic acids on the one hand and nitrosophenols or p-aminophenols on the other hand indophenolsulfonic acids or their leuco compounds heated with sulfur and alkaline sulfur.
DENDAT295300D Active DE295300C (en)

Publications (1)

Publication Number Publication Date
DE295300C true DE295300C (en)

Family

ID=549790

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT295300D Active DE295300C (en)

Country Status (1)

Country Link
DE (1) DE295300C (en)

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