GB193834A - Manufacture of azo-dyestuffs - Google Patents
Manufacture of azo-dyestuffsInfo
- Publication number
- GB193834A GB193834A GB4287/23A GB428723A GB193834A GB 193834 A GB193834 A GB 193834A GB 4287/23 A GB4287/23 A GB 4287/23A GB 428723 A GB428723 A GB 428723A GB 193834 A GB193834 A GB 193834A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chlor
- toluidine
- anisidide
- components
- oxynaphthoic
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
- C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
- C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Monoazo dyes are obtained, either in substance or on the fibre, by coupling diazo compounds with o-alkyloxyanilides of 2 : 3-oxynaphthoic acid; the products are very fast to kier boiling, especially those which contain halogen in either or both components. In an example a red pigment dyestuff is obtained from diazotized 4-chlor-2-toluidine and 2 : 3-oxynaphthoic-o-anisidide; other examples are given of printing and padding mixtures containing as diazo components 6-nitro-2-toluidine, 4- or 5-chlor-2-toluidine, 4-chlor-3-toluidine, 3-chlor-4-toluidine, 4-chlor-2-anisidine, and 4-nitro-2-anisidine, and as second components the following 2 : 3-oxynaphthoic arylides:- o-anisidide, 5-chlor-o-anisidide (NH : OCH3 : Cl=1 : 2 : 5), 5-brom-o-anisidide. Specification 199,771 is referred to. Reference has been directed by the Comptroller to Specifications 6379/12 and 23732/13. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of o-aryloxy-and o-aralkyloxy-anilides of 2 : 3-oxynaphthoic acid in the above described process. This subject-matter does not appear in the Specification as accepted.ALSO:Monoazo dyes are produced on the fibre, by coupling diazo compounds with o-alkyloxy-anilides of 2 : 3-oxynaphthoic acid; the shades are very fast to kier boiling especially when halogen is present in either or both components. Examples are given of printing and padding mixtures containing as diazo components 6-nitro-2-toluidine, 4- or 5-chlor-2-toluidine, 4-chlor-3-toluidine, 3-chlor-4-toluidine, p-chlor-anisidine (OCH3 : NH2 : Cl= 1 : 2 : 4) and 4-nitro-2-anisidine, and as second components the following 2 : 3-oxynaphthoic arylides:-o-anisidide, 5-chlor-o-anisidide (NH : OCH3 : Cl=1 : 2 : 5), 5-brom o-anisidide. Specification 199,771 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of o-aryloxy-and o-aralkyloxy-anilides of 2 : 3-oxynaphthoic acid in the above process. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 6379/12 and 23732/13, [both in Class 2 (iii), Dyes &c.].
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE193834X | 1922-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB193834A true GB193834A (en) | 1924-05-08 |
Family
ID=5741157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4287/23A Expired GB193834A (en) | 1922-02-24 | 1923-02-13 | Manufacture of azo-dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB193834A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508448A (en) * | 1948-02-03 | 1950-05-23 | Du Pont | Azo pigments and coating compositions containing same |
US2518077A (en) * | 1946-03-08 | 1950-08-08 | Ciba Ltd | Azo-dyestuffs |
-
1923
- 1923-02-13 GB GB4287/23A patent/GB193834A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2518077A (en) * | 1946-03-08 | 1950-08-08 | Ciba Ltd | Azo-dyestuffs |
US2508448A (en) * | 1948-02-03 | 1950-05-23 | Du Pont | Azo pigments and coating compositions containing same |
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