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GB291814A - Manufacture of anthraquinone derivatives - Google Patents

Manufacture of anthraquinone derivatives

Info

Publication number
GB291814A
GB291814A GB3156726A GB3156726A GB291814A GB 291814 A GB291814 A GB 291814A GB 3156726 A GB3156726 A GB 3156726A GB 3156726 A GB3156726 A GB 3156726A GB 291814 A GB291814 A GB 291814A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
silk
dyestuffs
manufacture
products
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
GB3156726A
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.)
Imperial Chemical Industries Ltd
Original Assignee
British Dyestuffs Corp Ltd
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 British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
Priority to GB3156726A priority Critical patent/GB291814A/en
Priority to FR645999D priority patent/FR645999A/en
Priority to DEB134745D priority patent/DE478739C/en
Publication of GB291814A publication Critical patent/GB291814A/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
    • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
    • C09B1/285—Dyes with no other substituents than the amino groups

Landscapes

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

Abstract

291,814. British Dyestuffs Corporation, Ltd., Shepherdson, A., Tatum, W. W., and Lodge, F. Dec. 13, 1926. Aminoanthraquinones; cellulose esters,. dyeing. -Symmetrical 1: 4-dialkyldiaminoanthraquinones are converted into products containing fewer alkyl groups by treating with concentrated sulphuric acid or sulphuric acid monohydrate alone at temperatures above 150‹ C. or in the presence of boric acid between 130‹ and 150‹ C. The products are dyestuffs for acetic silk. In a,n example, 1: 4-dimethyldiaminoanthraquinone is heated with sulphuric acid (100 per cent) at 180‹-220‹ C. and the product isolated by dilution with water; 'it dyes acetate silk in bright blue-violet shades. Specification 15355/08 is referred to.
GB3156726A 1926-12-13 1926-12-13 Manufacture of anthraquinone derivatives Expired GB291814A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3156726A GB291814A (en) 1926-12-13 1926-12-13 Manufacture of anthraquinone derivatives
FR645999D FR645999A (en) 1926-12-13 1927-12-08 Preparation of anthraquinone derivatives
DEB134745D DE478739C (en) 1926-12-13 1927-12-08 Process for the production of derivatives of the alkylaminoanthraquinones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3156726A GB291814A (en) 1926-12-13 1926-12-13 Manufacture of anthraquinone derivatives

Publications (1)

Publication Number Publication Date
GB291814A true GB291814A (en) 1928-06-13

Family

ID=10325044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3156726A Expired GB291814A (en) 1926-12-13 1926-12-13 Manufacture of anthraquinone derivatives

Country Status (3)

Country Link
DE (1) DE478739C (en)
FR (1) FR645999A (en)
GB (1) GB291814A (en)

Also Published As

Publication number Publication date
DE478739C (en) 1929-07-03
FR645999A (en) 1928-11-06

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