FR18421E - Process for the preparation of azo dyestuffs - Google Patents

Process for the preparation of azo dyestuffs

Info

Publication number
FR18421E
FR18421E FR18421DA FR18421E FR 18421 E FR18421 E FR 18421E FR 18421D A FR18421D A FR 18421DA FR 18421 E FR18421 E FR 18421E
Authority
FR
France
Prior art keywords
preparation
azo dyestuffs
dyestuffs
azo
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 FR18421E publication Critical patent/FR18421E/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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/18—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group
    • C09B43/24—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group with formation of —O—SO2—R or —O—SO3H radicals
FR18421D 1912-11-04 1913-11-06 Process for the preparation of azo dyestuffs Expired FR18421E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR450866T 1912-11-04
FR18421T 1913-11-06

Publications (1)

Publication Number Publication Date
FR18421E true FR18421E (en) 1914-04-24

Family

ID=1359785

Family Applications (1)

Application Number Title Priority Date Filing Date
FR18421D Expired FR18421E (en) 1912-11-04 1913-11-06 Process for the preparation of azo dyestuffs

Country Status (1)

Country Link
FR (1) FR18421E (en)

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