DE254328C - - Google Patents

Info

Publication number
DE254328C
DE254328C DENDAT254328D DE254328DA DE254328C DE 254328 C DE254328 C DE 254328C DE NDAT254328 D DENDAT254328 D DE NDAT254328D DE 254328D A DE254328D A DE 254328DA DE 254328 C DE254328 C DE 254328C
Authority
DE
Germany
Prior art keywords
copper
sulfur
leucoindophenols
naphthylenediamine
indophenols
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
DENDAT254328D
Other languages
German (de)
Publication of DE254328C publication Critical patent/DE254328C/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
    • C09B49/00—Sulfur dyes
    • C09B49/10—Sulfur dyes from diphenylamines, indamines, or indophenols, e.g. p-aminophenols or leucoindophenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDUUCKEREI,BERLIN. PRINTED IN THE EMPIRE PRINTING,

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zur Darstellung von Schwefelfarbstoffen, darin bestehend, daß man die Indophenole bzw. Leukoindophenole, die sich von zyklischen Harnstoffen oder Thioharnstoffen des ι · 8 - Naphtylendiamins ableiten, mit oder ohne Zusatz von Kupfer oder Kupferverbindungen der Schwefelschmelze unterwirft.Process for the preparation of sulfur dyes, consisting in that the Indophenols or leucoindophenols, which are different from cyclic ureas or thioureas der ι · 8 - naphthylenediamine, with or without the addition of copper or copper compounds subjected to the molten sulfur.
DENDAT254328D Active DE254328C (en)

Publications (1)

Publication Number Publication Date
DE254328C true DE254328C (en)

Family

ID=512525

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT254328D Active DE254328C (en)

Country Status (1)

Country Link
DE (1) DE254328C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5018585A (en) * 1988-09-20 1991-05-28 Alfo Ag Safety device to relieve explosive pressures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5018585A (en) * 1988-09-20 1991-05-28 Alfo Ag Safety device to relieve explosive pressures

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