GB313562A - Process for the manufacture of polyazo dyestuffs - Google Patents

Process for the manufacture of polyazo dyestuffs

Info

Publication number
GB313562A
GB313562A GB17183/29A GB1718329A GB313562A GB 313562 A GB313562 A GB 313562A GB 17183/29 A GB17183/29 A GB 17183/29A GB 1718329 A GB1718329 A GB 1718329A GB 313562 A GB313562 A GB 313562A
Authority
GB
United Kingdom
Prior art keywords
mol
acid
aminophenol
benzidine
tolyl
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
GB17183/29A
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.)
Sandoz AG
Original Assignee
Sandoz 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 Sandoz AG filed Critical Sandoz AG
Publication of GB313562A publication Critical patent/GB313562A/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
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

313,562. Chemische Fabrik vorm. Sandoz. June 14, 1928, [Convention date]. Samples furnished. Azo dyes are made by coupling a tetrazotized diaryldiamine (1 mol.) with H acid (1 mol.) in acid solution and combining in alkaline solution the intermediate product with a monodiazo compound (1 mol.) and a N-alkyl-, aryl- or aralkylm-aminophenol (1 mol.). They dye mixed wool and viscose goods in level and equal black shades. In an example, the diazo compound of the product aniline # H acid # benzidine is coupled with N-(o-tolyl)-m-aminophenol. The aniline may be replaced by the toluidines or chloranilines, the benzidine by tolidine, and the end component by N-monoethyl-N-diethyl, and N-(p-tolyl)-maminophenol.
GB17183/29A 1928-06-14 1929-06-04 Process for the manufacture of polyazo dyestuffs Expired GB313562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE313562X 1928-06-14

Publications (1)

Publication Number Publication Date
GB313562A true GB313562A (en) 1930-09-04

Family

ID=6141167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17183/29A Expired GB313562A (en) 1928-06-14 1929-06-04 Process for the manufacture of polyazo dyestuffs

Country Status (1)

Country Link
GB (1) GB313562A (en)

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