FR50248E - Disazo dyes and their manufacturing process - Google Patents

Disazo dyes and their manufacturing process

Info

Publication number
FR50248E
FR50248E FR50248DA FR50248E FR 50248 E FR50248 E FR 50248E FR 50248D A FR50248D A FR 50248DA FR 50248 E FR50248 E FR 50248E
Authority
FR
France
Prior art keywords
manufacturing process
disazo dyes
disazo
dyes
manufacturing
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 FR50248E publication Critical patent/FR50248E/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
    • 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
    • C09B35/04—Disazo dyes characterised by the tetrazo component the tetrazo component being a benzene derivative

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR50248D 1939-02-24 1939-02-24 Disazo dyes and their manufacturing process Expired FR50248E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50248T 1939-02-24

Publications (1)

Publication Number Publication Date
FR50248E true FR50248E (en) 1940-01-20

Family

ID=8685278

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50248D Expired FR50248E (en) 1939-02-24 1939-02-24 Disazo dyes and their manufacturing process

Country Status (1)

Country Link
FR (1) FR50248E (en)

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