GB289103A - Improvements in and relating to vat dyestuff preparation and utilisation - Google Patents
Improvements in and relating to vat dyestuff preparation and utilisationInfo
- Publication number
- GB289103A GB289103A GB2553826A GB2553826A GB289103A GB 289103 A GB289103 A GB 289103A GB 2553826 A GB2553826 A GB 2553826A GB 2553826 A GB2553826 A GB 2553826A GB 289103 A GB289103 A GB 289103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thiocresol
- vat dyestuff
- dyes
- utilisation
- relating
- 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
- C09B3/24—Preparation by synthesis of the nucleus
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
289,103. Thomson, R. F., Thomas, J., and Scottish Dyes, Ltd. Oct. 13, 1926. Isodibenzanthrone dyes. - A vat dyestuff, probably a diaminoisodibenzanthrone, dyeing cotton reddish-blue shade which on treatment with bleaching powder become bright blue, is obtained by treating with alkaline condensing- agents the amino-Bz 1-chlorbenzanthrone, melting at 280-1‹ C., described in example 7 of Specification 256,281. According to examples the aminochlorbenzanthrone is fused with (1) alcoholic caustic potash (2) caustic potash, ethyl or butyl alcohol, and p-thiocresol (3) sodium alcoholate; other mercaptans, such as thiophenol, may be used in place of thiocresol; the product may be purified by fractional precipitation from sulphuric acid solution. Specifications 242,620 and 254,742 also are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2553826A GB289103A (en) | 1926-10-13 | 1926-10-13 | Improvements in and relating to vat dyestuff preparation and utilisation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2553826A GB289103A (en) | 1926-10-13 | 1926-10-13 | Improvements in and relating to vat dyestuff preparation and utilisation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB289103A true GB289103A (en) | 1928-04-13 |
Family
ID=10229289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2553826A Expired GB289103A (en) | 1926-10-13 | 1926-10-13 | Improvements in and relating to vat dyestuff preparation and utilisation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB289103A (en) |
-
1926
- 1926-10-13 GB GB2553826A patent/GB289103A/en not_active Expired
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