FR818048A - Black disazo dyes and their manufacturing process - Google Patents

Black disazo dyes and their manufacturing process

Info

Publication number
FR818048A
FR818048A FR818048DA FR818048A FR 818048 A FR818048 A FR 818048A FR 818048D A FR818048D A FR 818048DA FR 818048 A FR818048 A FR 818048A
Authority
FR
France
Prior art keywords
manufacturing process
disazo dyes
black disazo
black
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 FR818048A publication Critical patent/FR818048A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
    • C09B31/062—Phenols
    • C09B31/065—Phenols containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR818048D 1936-04-29 1937-02-18 Black disazo dyes and their manufacturing process Expired FR818048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE818048X 1936-04-29

Publications (1)

Publication Number Publication Date
FR818048A true FR818048A (en) 1937-09-16

Family

ID=6735346

Family Applications (1)

Application Number Title Priority Date Filing Date
FR818048D Expired FR818048A (en) 1936-04-29 1937-02-18 Black disazo dyes and their manufacturing process

Country Status (1)

Country Link
FR (1) FR818048A (en)

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