CH257719A - Process for the preparation of disazo dyes. - Google Patents

Process for the preparation of disazo dyes.

Info

Publication number
CH257719A
CH257719A CH257719DA CH257719A CH 257719 A CH257719 A CH 257719A CH 257719D A CH257719D A CH 257719DA CH 257719 A CH257719 A CH 257719A
Authority
CH
Switzerland
Prior art keywords
preparation
disazo dyes
disazo
dyes
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 CH257719A publication Critical patent/CH257719A/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
CH257719D 1946-04-11 1946-04-11 Process for the preparation of disazo dyes. CH257719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH631262X 1946-04-11

Publications (1)

Publication Number Publication Date
CH257719A true CH257719A (en) 1948-10-31

Family

ID=4524761

Family Applications (1)

Application Number Title Priority Date Filing Date
CH257719D CH257719A (en) 1946-04-11 1946-04-11 Process for the preparation of disazo dyes.

Country Status (3)

Country Link
CH (1) CH257719A (en)
FR (1) FR944765A (en)
GB (1) GB631262A (en)

Also Published As

Publication number Publication date
GB631262A (en) 1949-10-31
FR944765A (en) 1949-04-14

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