FR592138A - Process for the preparation of azo dyes - Google Patents

Process for the preparation of azo dyes

Info

Publication number
FR592138A
FR592138A FR592138DA FR592138A FR 592138 A FR592138 A FR 592138A FR 592138D A FR592138D A FR 592138DA FR 592138 A FR592138 A FR 592138A
Authority
FR
France
Prior art keywords
preparation
azo dyes
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
Application number
Other languages
French (fr)
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of FR592138A publication Critical patent/FR592138A/en
Expired 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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
    • C09B31/075—Disazo dyes from a coupling component "C" containing a directive hydroxyl group ortho-Hydroxy carboxylic acid amides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR592138D 1925-01-26 1925-01-26 Process for the preparation of azo dyes Expired FR592138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR592138T 1925-01-26

Publications (1)

Publication Number Publication Date
FR592138A true FR592138A (en) 1925-07-28

Family

ID=8964595

Family Applications (1)

Application Number Title Priority Date Filing Date
FR592138D Expired FR592138A (en) 1925-01-26 1925-01-26 Process for the preparation of azo dyes

Country Status (1)

Country Link
FR (1) FR592138A (en)

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