GB481290A - Manufacture of azo-dyestuffs - Google Patents
Manufacture of azo-dyestuffsInfo
- Publication number
- GB481290A GB481290A GB2449136A GB2449136A GB481290A GB 481290 A GB481290 A GB 481290A GB 2449136 A GB2449136 A GB 2449136A GB 2449136 A GB2449136 A GB 2449136A GB 481290 A GB481290 A GB 481290A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- methoxy
- ethoxybenzene
- nitro
- dyes
- 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
- C09B29/32—Monoazo dyes prepared by diazotising and coupling from coupling components containing a reactive methylene group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Abstract
Azo dyes insoluble in water are made by combining in substance or on a substratum adapted for the production of lakes a diazotized 1 - amino - 2 - nitro - 4 - alkoxybenzene with an acetoacetic arylide of the formula <FORM:0481290/IV/1> where X = H, alkyl or halogen. The pigment dyes obtained have clear reddish-yellow shades and are useful in the graphic industry and in oil and decorative painting; they may also be used for colouring wall-paper or nitrocellulose lacquers. In examples, dyes from the following components are described: 1-amino-2-nitro-4-methoxy- or 4-ethoxybenzene; the acetoacetyl derivatives of 1-amino-2-methoxy- or ethoxybenzene and 1-amino-2-methoxy-5-chlor- or 5 - methylbenzene. Specification 428,697 is referred to. The Provisional Specification refers to the use as coupling components of acetoacetic arylides containing an alkoxy group in o-position to the NH-group.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2449136A GB481290A (en) | 1936-09-08 | 1936-09-08 | Manufacture of azo-dyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2449136A GB481290A (en) | 1936-09-08 | 1936-09-08 | Manufacture of azo-dyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB481290A true GB481290A (en) | 1938-03-08 |
Family
ID=10212493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2449136A Expired GB481290A (en) | 1936-09-08 | 1936-09-08 | Manufacture of azo-dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB481290A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3032546A (en) * | 1959-08-24 | 1962-05-01 | Du Pont | Yellow azo pigment |
GB2000172A (en) * | 1977-06-18 | 1979-01-04 | Hoechst Ag | Azo compound mixtures their preparation and use |
-
1936
- 1936-09-08 GB GB2449136A patent/GB481290A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3032546A (en) * | 1959-08-24 | 1962-05-01 | Du Pont | Yellow azo pigment |
GB2000172A (en) * | 1977-06-18 | 1979-01-04 | Hoechst Ag | Azo compound mixtures their preparation and use |
FR2394584A1 (en) * | 1977-06-18 | 1979-01-12 | Hoechst Ag | MIXTURES OF NITROGEN COMPOUNDS USABLE AS PIGMENTS |
GB2000172B (en) * | 1977-06-18 | 1982-01-27 | Hoechst Ag | Azo compound mixtures their preparation and use |
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