CH515973A - Process for the preparation of carboxylic acid and sulfonic acid group-free disazo dyes - Google Patents

Process for the preparation of carboxylic acid and sulfonic acid group-free disazo dyes

Info

Publication number
CH515973A
CH515973A CH1432870A CH1432870A CH515973A CH 515973 A CH515973 A CH 515973A CH 1432870 A CH1432870 A CH 1432870A CH 1432870 A CH1432870 A CH 1432870A CH 515973 A CH515973 A CH 515973A
Authority
CH
Switzerland
Prior art keywords
preparation
carboxylic acid
disazo dyes
sulfonic acid
acid group
Prior art date
Application number
CH1432870A
Other languages
German (de)
Inventor
Dietmar Dr Kalz
Gerhard Dr Wolfrum
Dieter Dr Wolf Gerhard
Egon Dr Kuenzel Hans
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of CH515973A publication Critical patent/CH515973A/en

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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/34—Disazo dyes characterised by the tetrazo component the tetrazo component being heterocyclic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1432870A 1969-10-14 1970-09-28 Process for the preparation of carboxylic acid and sulfonic acid group-free disazo dyes CH515973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691951634 DE1951634A1 (en) 1969-10-14 1969-10-14 Disazo dyes and processes for their preparation

Publications (1)

Publication Number Publication Date
CH515973A true CH515973A (en) 1971-11-30

Family

ID=5748092

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1432870A CH515973A (en) 1969-10-14 1970-09-28 Process for the preparation of carboxylic acid and sulfonic acid group-free disazo dyes

Country Status (9)

Country Link
AT (1) AT295685B (en)
BE (1) BE757494A (en)
CA (1) CA941823A (en)
CH (1) CH515973A (en)
DE (1) DE1951634A1 (en)
ES (1) ES384489A1 (en)
FR (1) FR2064334B1 (en)
GB (1) GB1269608A (en)
NL (1) NL7014867A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100226A1 (en) * 1981-01-07 1982-08-05 Hoechst Ag, 6000 Frankfurt "DISAZO CONNECTIONS, METHOD FOR THEIR PRODUCTION AND THEIR USE"

Also Published As

Publication number Publication date
NL7014867A (en) 1971-04-16
CA941823A (en) 1974-02-12
AT295685B (en) 1972-01-10
FR2064334B1 (en) 1974-09-20
GB1269608A (en) 1972-04-06
FR2064334A1 (en) 1971-07-23
DE1951634A1 (en) 1971-05-06
ES384489A1 (en) 1973-01-16
BE757494A (en) 1971-03-16

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Legal Events

Date Code Title Description
PL Patent ceased