DE117801C - - Google Patents

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Publication number
DE117801C
DE117801C DENDAT117801D DE117801DA DE117801C DE 117801 C DE117801 C DE 117801C DE NDAT117801 D DENDAT117801 D DE NDAT117801D DE 117801D A DE117801D A DE 117801DA DE 117801 C DE117801 C DE 117801C
Authority
DE
Germany
Prior art keywords
dyes
amidonaphthol
naphthylenediamine
protected
acids
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
DENDAT117801D
Other languages
German (de)
Publication of DE117801C publication Critical patent/DE117801C/de
Active legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

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

Claims (1)

Patent-Anspruch:Patent claim: Abänderung des durch Patent 109063 geschützten Verfahrens zur Darstellung von Polyazofarbstoffen aus der O1 ß2 - Naphtylendiamin - ß3 - sulfosäure, darin bestehend, dafs ■ man auf die dort namhaft gemachten Monoazofarbstoffe aus der Amidonaphtoldisulfosäure K ■behufs Ueberführung in die Zwischenproducte die Tetrazoderivate statt in alkalischer Lösung,, hier in Gegenwart von Säuren einwirken läfst.Modification of the process, protected by patent 109063, for the preparation of polyazo dyes from O 1 ß 2 - naphthylenediamine - ß 3 - sulfonic acid, consisting in that the tetrazo derivatives are used instead of the monoazo dyes named there from amidonaphthol disulfonic acid for conversion into the intermediate products in an alkaline solution, here in the presence of acids.
DENDAT117801D Active DE117801C (en)

Publications (1)

Publication Number Publication Date
DE117801C true DE117801C (en)

Family

ID=387044

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT117801D Active DE117801C (en)

Country Status (1)

Country Link
DE (1) DE117801C (en)

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