DE222993C - - Google Patents

Info

Publication number
DE222993C
DE222993C DENDAT222993D DE222993DA DE222993C DE 222993 C DE222993 C DE 222993C DE NDAT222993 D DENDAT222993 D DE NDAT222993D DE 222993D A DE222993D A DE 222993DA DE 222993 C DE222993 C DE 222993C
Authority
DE
Germany
Prior art keywords
gallocyanine
salts
nitrosodiethylaniline
gallocyanin
saying
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
DENDAT222993D
Other languages
German (de)
Publication of DE222993C publication Critical patent/DE222993C/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
    • C09B19/00—Oxazine dyes
    • C09B19/005—Gallocyanine dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

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

Claims (1)

Patent-An Spruch:Patent-An saying: 3535 4040 4545 Abänderung des durch das Patent 192971 und dessen Zusatzpatent 200074 geschützten Verfahrens zur Darstellung eines Farbstoffs der Gallocyaninreihe, darin bestehend, daß man an Stelle des gewöhnlichen Gallocyanins hier das Gallocyanin aus Nitrosodiäthylanilin und Gallussäure als Base oder in Form seiner Salze' zwecks Abspaltung der Carboxylgruppe bei Gegenwart von Lösungs- oder Suspensionsmitteln, mit oder ohne Zusatz von neutralen Salzen, erhitzt.Modification of the patent 192971 and its additional patent 200074 protected process for the preparation of a dye of the gallocyanin series, therein consisting that in place of the usual gallocyanine here the gallocyanine from nitrosodiethylaniline and gallic acid as a base or in the form of its salts' for the purpose of splitting off the carboxyl group in the presence of solvents or suspending agents, with or without the addition of neutral salts, heated.
DENDAT222993D Active DE222993C (en)

Publications (1)

Publication Number Publication Date
DE222993C true DE222993C (en)

Family

ID=483845

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT222993D Active DE222993C (en)

Country Status (1)

Country Link
DE (1) DE222993C (en)

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