FR675507A - Process for the manufacture of azophthalein dyes - Google Patents

Process for the manufacture of azophthalein dyes

Info

Publication number
FR675507A
FR675507A FR675507DA FR675507A FR 675507 A FR675507 A FR 675507A FR 675507D A FR675507D A FR 675507DA FR 675507 A FR675507 A FR 675507A
Authority
FR
France
Prior art keywords
azophthalein
dyes
manufacture
azophthalein dyes
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 FR675507A publication Critical patent/FR675507A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR675507D 1928-05-24 1929-05-22 Process for the manufacture of azophthalein dyes Expired FR675507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE675507X 1928-05-24

Publications (1)

Publication Number Publication Date
FR675507A true FR675507A (en) 1930-02-11

Family

ID=6593715

Family Applications (1)

Application Number Title Priority Date Filing Date
FR675507D Expired FR675507A (en) 1928-05-24 1929-05-22 Process for the manufacture of azophthalein dyes

Country Status (1)

Country Link
FR (1) FR675507A (en)

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