GB237385A - Manufacture of new indigoid dyestuffs - Google Patents

Manufacture of new indigoid dyestuffs

Info

Publication number
GB237385A
GB237385A GB1228424A GB1228424A GB237385A GB 237385 A GB237385 A GB 237385A GB 1228424 A GB1228424 A GB 1228424A GB 1228424 A GB1228424 A GB 1228424A GB 237385 A GB237385 A GB 237385A
Authority
GB
United Kingdom
Prior art keywords
manufacture
indigoid dyestuffs
new
naphthindoxyl
dyestuffs
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
GB1228424A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Priority to GB1228424A priority Critical patent/GB237385A/en
Publication of GB237385A publication Critical patent/GB237385A/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
    • C09B7/00—Indigoid dyes
    • C09B7/02—Bis-indole indigos

Landscapes

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

Abstract

Indigoid dyes are prepared by condensing 2 : 1-naphthindoxyl with halogen substitution products of isatin; they dye cotton from the vat in brown to olive shades. According to examples 2 : 1-naphthindoxyl is condensed with 7-chlorisatin or 5 : 7-dibromisatin.
GB1228424A 1924-05-19 1924-05-19 Manufacture of new indigoid dyestuffs Expired GB237385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1228424A GB237385A (en) 1924-05-19 1924-05-19 Manufacture of new indigoid dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1228424A GB237385A (en) 1924-05-19 1924-05-19 Manufacture of new indigoid dyestuffs

Publications (1)

Publication Number Publication Date
GB237385A true GB237385A (en) 1925-07-30

Family

ID=10001720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228424A Expired GB237385A (en) 1924-05-19 1924-05-19 Manufacture of new indigoid dyestuffs

Country Status (1)

Country Link
GB (1) GB237385A (en)

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