GB314903A - Manufacture of dyestuffs - Google Patents

Manufacture of dyestuffs

Info

Publication number
GB314903A
GB314903A GB20568/29A GB2056829A GB314903A GB 314903 A GB314903 A GB 314903A GB 20568/29 A GB20568/29 A GB 20568/29A GB 2056829 A GB2056829 A GB 2056829A GB 314903 A GB314903 A GB 314903A
Authority
GB
United Kingdom
Prior art keywords
leuco
liquid organic
manufacture
diluent
organic diluent
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
GB20568/29A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Publication of GB314903A publication Critical patent/GB314903A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

314,903. Soc. of Chemical Industry in Basle. July 4, 1928, [Convention date]. Addition to 262,774 and 294,486. Halogenated dibenzanthrones are prepared by treating 2.2'-dibenzanthronyl, in presence of a liquid organic diluent, with more than 5 times its weight of ferric chloride. The products dye cotton in blue shades fast to water. An example is given in which trichlorbenzene is used as diluent. Specification 203,533 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) is not restricted to the use of a liquid organic diluent, and also covers the manufacture of dyestuff preparations by converting the dyestuffs described above into leuco-compounds and leuco-ester salts. This subject-matter does not appear in the Specification as accepted.
GB20568/29A 1928-07-04 1929-07-04 Manufacture of dyestuffs Expired GB314903A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH314903X 1928-07-04

Publications (1)

Publication Number Publication Date
GB314903A true GB314903A (en) 1930-10-02

Family

ID=4495777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20568/29A Expired GB314903A (en) 1928-07-04 1929-07-04 Manufacture of dyestuffs

Country Status (1)

Country Link
GB (1) GB314903A (en)

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