DE44954C - Process for the preparation of yellow to red-brown azo dyes made from chrysoidine, which color in an alkaline bath - Google Patents

Process for the preparation of yellow to red-brown azo dyes made from chrysoidine, which color in an alkaline bath

Info

Publication number
DE44954C
DE44954C DENDAT44954D DE44954DA DE44954C DE 44954 C DE44954 C DE 44954C DE NDAT44954 D DENDAT44954 D DE NDAT44954D DE 44954D A DE44954D A DE 44954DA DE 44954 C DE44954 C DE 44954C
Authority
DE
Germany
Prior art keywords
phenylenediamine
chrysoidine
yellow
preparation
azo dyes
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.)
Expired - Lifetime
Application number
DENDAT44954D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
Publication of DE44954C publication Critical patent/DE44954C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C09B37/00—Azo dyes prepared by coupling the diazotised amine with itself

Landscapes

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

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung von gelben und braunen, direct färbenden Azofarbstoffen, durch Einwirkung der Tetrazoverbindungen sowohl von Benzidin, Tolidin, Diamidodiphenoläther, ρ - Phenylendiamin und deren Sulfosäuren, als auch von dem in den Patenten Nr. 38735 und 39756 beschriebenen Diamidostilben und der Diamidostilbendisulfosäure gemäfs den dort angegebenen Methoden, auf die im Handel unter dem Namen Chrysoidine bekannten Farbstoffe, wobei unter Chrysoidinen folgende Combinationen verstanden sind:Process for the preparation of yellow and brown, direct coloring azo dyes Action of the tetrazo compounds of benzidine, tolidine, diamidodiphenol ether, ρ - phenylenediamine and its sulfonic acids, as well as that in patent nos. 38735 and 39756 described diamidostilbene and the diamidostilbene disulfonic acid according to the there specified methods, on the dyes known commercially under the name Chrysoidine, where chrysoidins are understood to mean the following combinations: Anilin -f- m-Phenylendiamin,
Sulfanilsäure -j- m-Phenylendiamin,
α - Naphtylaminsulfosäure + m - Phenylendiamin, Aniline -f- m-phenylenediamine,
Sulfanilic acid -j- m-phenylenediamine,
α - naphthylamine sulfonic acid + m - phenylenediamine, β - Naphtylaminsulfosäure + m - Phenylendiamin. β - naphthylamine sulfonic acid + m - phenylenediamine.
DENDAT44954D Process for the preparation of yellow to red-brown azo dyes made from chrysoidine, which color in an alkaline bath Expired - Lifetime DE44954C (en)

Publications (1)

Publication Number Publication Date
DE44954C true DE44954C (en)

Family

ID=320149

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT44954D Expired - Lifetime DE44954C (en) Process for the preparation of yellow to red-brown azo dyes made from chrysoidine, which color in an alkaline bath

Country Status (1)

Country Link
DE (1) DE44954C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465671A (en) * 1981-05-28 1984-08-14 Farmitalia Carlo Erba S.P.A. Anthracycline glycosides use and compositions containing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465671A (en) * 1981-05-28 1984-08-14 Farmitalia Carlo Erba S.P.A. Anthracycline glycosides use and compositions containing same

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