GB634645A - Improvements in or relating to anthraquinone acid dyestuffs - Google Patents

Improvements in or relating to anthraquinone acid dyestuffs

Info

Publication number
GB634645A
GB634645A GB25409/46A GB2540946A GB634645A GB 634645 A GB634645 A GB 634645A GB 25409/46 A GB25409/46 A GB 25409/46A GB 2540946 A GB2540946 A GB 2540946A GB 634645 A GB634645 A GB 634645A
Authority
GB
United Kingdom
Prior art keywords
relating
acid dyestuffs
anthraquinone acid
anthraquinone
copper
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
GB25409/46A
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.)
KRISHNASAMI VENKATARAMAN
SHREERAM GANESH BEDEKAR
Original Assignee
KRISHNASAMI VENKATARAMAN
SHREERAM GANESH BEDEKAR
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 KRISHNASAMI VENKATARAMAN, SHREERAM GANESH BEDEKAR filed Critical KRISHNASAMI VENKATARAMAN
Publication of GB634645A publication Critical patent/GB634645A/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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/264—Dyes with amino groups substituted by hydrocarbon radicals sulfonated

Landscapes

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

Abstract

Dyes are made by heating 2.4-dichloro-1-aminoanthraquinone with a primary or secondary aromatic or aliphatic amine, if desired in presence of copper or a copper salt or of an acid binding agent, the product being sulphonated before or after purification. The anthraquinone body may be prepared according to Specification 634,646. Examples describe the use of p-toluidine and aniline. Specification 19531/99, [Class 2], also is referred to
GB25409/46A 1946-02-26 1946-08-26 Improvements in or relating to anthraquinone acid dyestuffs Expired GB634645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN634645X 1946-02-26

Publications (1)

Publication Number Publication Date
GB634645A true GB634645A (en) 1950-03-22

Family

ID=11076580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25409/46A Expired GB634645A (en) 1946-02-26 1946-08-26 Improvements in or relating to anthraquinone acid dyestuffs

Country Status (1)

Country Link
GB (1) GB634645A (en)

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