GB314903A - Manufacture of dyestuffs - Google Patents
Manufacture of dyestuffsInfo
- 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
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.
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) |
-
1929
- 1929-07-04 GB GB20568/29A patent/GB314903A/en not_active Expired
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