GB416580A - New disazo dyestuffs and their application - Google Patents
New disazo dyestuffs and their applicationInfo
- Publication number
- GB416580A GB416580A GB743533A GB743533A GB416580A GB 416580 A GB416580 A GB 416580A GB 743533 A GB743533 A GB 743533A GB 743533 A GB743533 A GB 743533A GB 416580 A GB416580 A GB 416580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aminonaphthol
- application
- diethoxyaniline
- class
- coupling
- 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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Disazo dyes giving on cellulose ester and ether materials grey shades having good fastness to light and washing and good dischargeability are made by coupling a diazotised nitro- or chlornitro-aniline with a 2 : 5-dimethoxy- or diethoxyaniline, again diazotising a coupling with 1 : 5-aminonaphthol in an acid medium. They may be applied according to Specification 224,077, [Class 15 (ii)]. In examples the following dyes are described: (1) and (2) o- or p-nitraniline --> 2 : 5-dimethoxyaniline --> 1 : 5-aminonaphthol; (3) o - chlor - p - nitroaniline --> 2 : 5 - diethoxyaniline --> 1 : 5 - aminonaphthol. Specification 298,993, [Class 15 (ii)], also is referred to.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB743533A GB416580A (en) | 1933-03-11 | 1933-03-11 | New disazo dyestuffs and their application |
DE1934I0049205 DE616997C (en) | 1933-03-11 | 1934-03-10 | |
FR770095D FR770095A (en) | 1933-03-11 | 1934-03-12 | Manufacturing process for disazo dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB743533A GB416580A (en) | 1933-03-11 | 1933-03-11 | New disazo dyestuffs and their application |
Publications (1)
Publication Number | Publication Date |
---|---|
GB416580A true GB416580A (en) | 1934-09-11 |
Family
ID=9833037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB743533A Expired GB416580A (en) | 1933-03-11 | 1933-03-11 | New disazo dyestuffs and their application |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE616997C (en) |
FR (1) | FR770095A (en) |
GB (1) | GB416580A (en) |
-
1933
- 1933-03-11 GB GB743533A patent/GB416580A/en not_active Expired
-
1934
- 1934-03-10 DE DE1934I0049205 patent/DE616997C/de not_active Expired
- 1934-03-12 FR FR770095D patent/FR770095A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR770095A (en) | 1934-09-06 |
DE616997C (en) | 1935-08-09 |
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