GB1267484A - Monoazo dyestuffs - Google Patents

Monoazo dyestuffs

Info

Publication number
GB1267484A
GB1267484A GB3550570A GB3550570A GB1267484A GB 1267484 A GB1267484 A GB 1267484A GB 3550570 A GB3550570 A GB 3550570A GB 3550570 A GB3550570 A GB 3550570A GB 1267484 A GB1267484 A GB 1267484A
Authority
GB
United Kingdom
Prior art keywords
july
dyes
monoazo dyestuffs
alkyl
monoazo 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
GB3550570A
Inventor
Peter Suchanek
Hans Raab
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.)
Bayer AG
Original Assignee
Bayer 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
Priority claimed from DE19691937638 external-priority patent/DE1937638A1/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1267484A publication Critical patent/GB1267484A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Abstract

1,267,484. Monoazo dyes. FARBENFABRIKEN BAYER A.G. 22 July, 1970 [23 July, 1969], No. 35505/70. Heading C4P. The invention comprises monoazo dyes of formula wherein ring A may be substituted by halogen atoms or alkyl groups, R is H, alkyl or aryl, R 1 and R 2 are H or Cl, at least one being Cl and the -SO 3 H group is in the 4-, 5-, 6- or 7-position. The dyes are prepared by azo coupling and may be used to colour natural and synthetic -polyamide materials in red shades.
GB3550570A 1969-07-23 1970-07-22 Monoazo dyestuffs Expired GB1267484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937638 DE1937638A1 (en) 1968-07-26 1969-07-23 Semiconductor component with a cover with two current conductors

Publications (1)

Publication Number Publication Date
GB1267484A true GB1267484A (en) 1972-03-22

Family

ID=5740771

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3550570A Expired GB1267484A (en) 1969-07-23 1970-07-22 Monoazo dyestuffs

Country Status (1)

Country Link
GB (1) GB1267484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450271A1 (en) * 1979-03-02 1980-09-26 Montedison Spa WATER-SOLUBLE ACID AZO DYES AND PROCESS FOR THEIR PREPARATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450271A1 (en) * 1979-03-02 1980-09-26 Montedison Spa WATER-SOLUBLE ACID AZO DYES AND PROCESS FOR THEIR PREPARATION

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