AT40660B - Process for the preparation of water-insoluble monoazo dyes. - Google Patents

Process for the preparation of water-insoluble monoazo dyes.

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Publication number
AT40660B
AT40660B AT40660DA AT40660B AT 40660 B AT40660 B AT 40660B AT 40660D A AT40660D A AT 40660DA AT 40660 B AT40660 B AT 40660B
Authority
AT
Austria
Prior art keywords
water
preparation
monoazo dyes
insoluble monoazo
nitro
Prior art date
Application number
Other languages
German (de)
Original Assignee
Basf Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE1906202908D external-priority patent/DE202908C/de
Application filed by Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of AT40660B publication Critical patent/AT40660B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung   wasserunlöslicher   Monoazofarbstoffe. 



   Im Stammpatente Nr. 39956 ist gezeigt worden, dass durch Kuppeln von diazotiertem 2-Nitro-4-chloranilin mit  -Naphtol ein leuchtend orangefarbener Farbstoff erhalten wird, der infolge seiner Wasserunlöslichkeit, seiner ganz hervorragenden Lichtechtheit, der guten   Ötechtheit,   Lackierfähigkeit und der sehr guten Kalkechtheit der mannigfachsten vorteilhaftesten Anwendungen fähig ist. 



   Es wurde nun gefunden, dass auch die beiden Nitrochloraniline 
 EMI1.1 
 wenn man sie diazotiert und   mit ss-Naphtot   kombiniert,   wasserunlösliche   Farbstoffe geben, 
 EMI1.2 
 die genannten guten Eigenschaften der 2-Nitro-4-chloranilin-Kombination zeigen und besonders mit ihr den   aussergewöhnlich   hohen Grad von Lichtechtheit teilen. 



   Zur Darstellung dieser Farbstoffe kann man nach dem in dem Stammpatent gegebenen Beispiel verfahren, indem man das dort verwendete 2-Nitro-4-chloranilin durch eine der isomeren Verbindungen ersetzt. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of water-insoluble monoazo dyes.



   In parent patent no. 39956 it has been shown that by coupling diazotized 2-nitro-4-chloroaniline with -naphtol, a bright orange colored dye is obtained, which due to its insolubility in water, its very excellent lightfastness, good oilfastness, paintability and very good Fastness to lime is capable of the most diverse advantageous applications.



   It has now been found that the two nitrochloroanilines
 EMI1.1
 if they are diazotized and combined with ss-naphtot, they give water-insoluble colorants,
 EMI1.2
 show the mentioned good properties of the 2-nitro-4-chloroaniline combination and especially share with it the extraordinarily high degree of lightfastness.



   To prepare these dyes one can proceed according to the example given in the parent patent by replacing the 2-nitro-4-chloroaniline used there with one of the isomeric compounds.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Weiterbildung des durch Stammpatent Nr. 39956 geschützten Verfahrens, dadurch kennzeichnet, dass man das 2-Nitro-4-chloranilin durch seine Isomeren 6-Nitro-3-chloranilin oder 3-Nitro-4-chloranilin ersetzt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Further development of the process protected by the parent patent no. 39956, characterized in that the 2-nitro-4-chloroaniline is replaced by its isomers 6-nitro-3-chloroaniline or 3-nitro-4-chloroaniline. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT40660D 1906-06-20 1908-06-01 Process for the preparation of water-insoluble monoazo dyes. AT40660B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1906202908D DE202908C (en) 1906-06-20

Publications (1)

Publication Number Publication Date
AT40660B true AT40660B (en) 1910-01-25

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ID=5773807

Family Applications (1)

Application Number Title Priority Date Filing Date
AT40660D AT40660B (en) 1906-06-20 1908-06-01 Process for the preparation of water-insoluble monoazo dyes.

Country Status (1)

Country Link
AT (1) AT40660B (en)

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