GB263494A - Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries - Google Patents

Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries

Info

Publication number
GB263494A
GB263494A GB32301/26A GB3230126A GB263494A GB 263494 A GB263494 A GB 263494A GB 32301/26 A GB32301/26 A GB 32301/26A GB 3230126 A GB3230126 A GB 3230126A GB 263494 A GB263494 A GB 263494A
Authority
GB
United Kingdom
Prior art keywords
pyrazoleanthrone
products
vat
anthraquinoneseries
manufacture
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
GB32301/26A
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 GB263494A publication Critical patent/GB263494A/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
    • C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
    • C09B5/04—Pyrazolanthrones

Abstract

263,494. I. G. Farbenindustsie Akt.- Ges. Dec. 22, 1925, [Convention date]. Pyrazoleanthrone, dyes derived from. - Red vat-dyestuffs are obtained by treating with alkaline condensing agents the products of the action of alkylating agents on pyrazoleanthrone or its nuclear substitution products. By the alkylation two products are obtained only one of which is convertible into the colouring matter. According to an example the product obtained by heating pyrazoleanthrone with p-toluenesulphonic methyl or ethyl ester in presence of sodium carbonate and trichlorbenzene is fused with ethylalcoholic potash. The resulting dyestuff dyes cotton from a blue vat in bluish-red shades. Specification 14103/15 is referred to.
GB32301/26A 1925-12-22 1926-12-21 Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries Expired GB263494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE263494X 1925-12-22

Publications (1)

Publication Number Publication Date
GB263494A true GB263494A (en) 1928-01-26

Family

ID=5984649

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32301/26A Expired GB263494A (en) 1925-12-22 1926-12-21 Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries

Country Status (1)

Country Link
GB (1) GB263494A (en)

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