GB265964A - Manufacture of vat-dyestuffs - Google Patents

Manufacture of vat-dyestuffs

Info

Publication number
GB265964A
GB265964A GB3559/27A GB355927A GB265964A GB 265964 A GB265964 A GB 265964A GB 3559/27 A GB3559/27 A GB 3559/27A GB 355927 A GB355927 A GB 355927A GB 265964 A GB265964 A GB 265964A
Authority
GB
United Kingdom
Prior art keywords
acid
dyestuffs
odiamine
anhydride
solvent
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
GB3559/27A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB265964A publication Critical patent/GB265964A/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
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/12—Perinones, i.e. naphthoylene-aryl-imidazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Coloring (AREA)

Abstract

265,964. I. G. Farbenindustrie Akt.- Ges. Feb. 9, 1926, [Convention date]. Addition to 237,294 and 265,232. Naphthalene, dyes derived from. - The dyestuffs obtained according to the parent Specification by condensing naphthalene-1 : 4 : 5 : 8- tetracarboxylic acid or its anhydride with an odiamine are also obtained by heating, either dry or in a solvent of high boiling point, the primary condensation products which can be obtained by condensing the acid or its anhydride with an odiamine in a solvent of low boiling point such as - alcohol. According to an example, the acid is - condensed with o-phenylenediamine in boiling alcohol and the product further condensed by boiling with glacial acetic acid or by heating alone to 150‹ C.
GB3559/27A 1926-02-09 1927-02-08 Manufacture of vat-dyestuffs Expired GB265964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE265964X 1926-02-09

Publications (1)

Publication Number Publication Date
GB265964A true GB265964A (en) 1928-01-19

Family

ID=5997083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3559/27A Expired GB265964A (en) 1926-02-09 1927-02-08 Manufacture of vat-dyestuffs

Country Status (1)

Country Link
GB (1) GB265964A (en)

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