FR937911A - Azo dyes of the pyrazolone series and process for their preparation - Google Patents

Azo dyes of the pyrazolone series and process for their preparation

Info

Publication number
FR937911A
FR937911A FR937911DA FR937911A FR 937911 A FR937911 A FR 937911A FR 937911D A FR937911D A FR 937911DA FR 937911 A FR937911 A FR 937911A
Authority
FR
France
Prior art keywords
preparation
azo dyes
pyrazolone series
pyrazolone
series
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.)
Novartis AG
Original Assignee
JR Geigy 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 JR Geigy AG filed Critical JR Geigy AG
Application granted granted Critical
Publication of FR937911A publication Critical patent/FR937911A/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
FR937911D 1945-12-27 1946-12-26 Azo dyes of the pyrazolone series and process for their preparation Expired FR937911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH937911X 1945-12-27

Publications (1)

Publication Number Publication Date
FR937911A true FR937911A (en) 1948-08-31

Family

ID=4549253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937911D Expired FR937911A (en) 1945-12-27 1946-12-26 Azo dyes of the pyrazolone series and process for their preparation

Country Status (1)

Country Link
FR (1) FR937911A (en)

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