GB260588A - Improvements in the manufacture and production of vat dyestuffs of the anthraquinone series - Google Patents

Improvements in the manufacture and production of vat dyestuffs of the anthraquinone series

Info

Publication number
GB260588A
GB260588A GB26625/26A GB2662526A GB260588A GB 260588 A GB260588 A GB 260588A GB 26625/26 A GB26625/26 A GB 26625/26A GB 2662526 A GB2662526 A GB 2662526A GB 260588 A GB260588 A GB 260588A
Authority
GB
United Kingdom
Prior art keywords
acid
chloranthraquinone
carboxylic acid
trichlorbenzene
borax
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
GB26625/26A
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 GB260588A publication Critical patent/GB260588A/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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/34—Anthraquinone acridones or thioxanthrones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

260,588. I. G. Farbenindustrie Akt.- Ges. Oct. 29, 1925, [Convention date]. Samples furnished. Anthraquinoneacridone dyes are prepared by heating a 1-chloranthraquinone-2-carboxylic acid with an arylamine in an inert organic solvent until the formation of dyestuff is complete. A condensing agent may be present, particularly one of weak acid character such as borax, boric acid, potassium bisulphate, arsenious acid, phthalic acid, or benzoic acid. According to examples, 1-chloranthraquinone-2-carboxylic acid is condensed with #-naphthylamine in presence of nitrobenzene, or oxalic acid and naphthalene, or sodium acetate or borax and trichlorbenzene; 1- chloranthraquinone-2-carboxylic acid is condensed with p-chloraniline in presence of boric acid and trichlorbenzene. Specification 894/11 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of antimonious acid as condensing agent in the process. This subject-matter does not appear in the Specification as accepted.
GB26625/26A 1925-10-29 1926-10-25 Improvements in the manufacture and production of vat dyestuffs of the anthraquinone series Expired GB260588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE260588X 1925-10-29

Publications (1)

Publication Number Publication Date
GB260588A true GB260588A (en) 1928-01-25

Family

ID=5969864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26625/26A Expired GB260588A (en) 1925-10-29 1926-10-25 Improvements in the manufacture and production of vat dyestuffs of the anthraquinone series

Country Status (1)

Country Link
GB (1) GB260588A (en)

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