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CH285138A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH285138A
CH285138A CH285138DA CH285138A CH 285138 A CH285138 A CH 285138A CH 285138D A CH285138D A CH 285138DA CH 285138 A CH285138 A CH 285138A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
azo
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH285138A publication Critical patent/CH285138A/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
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
CH285138D 1949-08-25 1949-08-25 Process for the preparation of an azo dye. CH285138A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH285138T 1949-08-25
CH302394T 1952-02-12

Publications (1)

Publication Number Publication Date
CH285138A true CH285138A (en) 1952-08-31

Family

ID=25732482

Family Applications (2)

Application Number Title Priority Date Filing Date
CH285138D CH285138A (en) 1949-08-25 1949-08-25 Process for the preparation of an azo dye.
CH302394D CH302394A (en) 1949-08-25 1952-02-12 Process for the preparation of an azo dye.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH302394D CH302394A (en) 1949-08-25 1952-02-12 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (2) CH285138A (en)

Also Published As

Publication number Publication date
CH302394A (en) 1954-10-15

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