FR842755A - Process for the preparation of azo dyes - Google Patents

Process for the preparation of azo dyes

Info

Publication number
FR842755A
FR842755A FR842755DA FR842755A FR 842755 A FR842755 A FR 842755A FR 842755D A FR842755D A FR 842755DA FR 842755 A FR842755 A FR 842755A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR842755A publication Critical patent/FR842755A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/147—Disazo dyes in which the coupling component is a bis -(-o-hydroxy-carboxylic- acid amide)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR842755D 1937-10-08 1938-08-29 Process for the preparation of azo dyes Expired FR842755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE842755X 1937-10-08

Publications (1)

Publication Number Publication Date
FR842755A true FR842755A (en) 1939-06-19

Family

ID=6770835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR842755D Expired FR842755A (en) 1937-10-08 1938-08-29 Process for the preparation of azo dyes

Country Status (1)

Country Link
FR (1) FR842755A (en)

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