AT23906B - Process for the preparation of orange disazo dyes for wool. - Google Patents

Process for the preparation of orange disazo dyes for wool.

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Publication number
AT23906B
AT23906B AT23906DA AT23906B AT 23906 B AT23906 B AT 23906B AT 23906D A AT23906D A AT 23906DA AT 23906 B AT23906 B AT 23906B
Authority
AT
Austria
Prior art keywords
preparation
wool
disazo dyes
orange
orange disazo
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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 DE1904163141D external-priority patent/DE163141C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT23906B publication Critical patent/AT23906B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung orangefarbener Disazofarbstoffe für Wolle. 



   In der   Stamm-Patentschrift   wurde ein Vorfahren zur Darstellung von walkechten Disazofarbstoffen beschrieben, welches darin besteht, dass man die Tetrazoverbindnngen der Benzidin- oder Tolidin-m-disulfosäure mit 2 Molekülen Methylketol   (&alpha;-Methylindol)   oder in beliebiger Reihenfolge mit 1 Molekül Methylketol   (&alpha;-Methylindol)   und 1   Molokü)   I-Phenyl-3-methyl-5-pyrazolon kuppelt. 



   Es wurde nun gefunden, dass, wenn man die genannten Tetrazoverbindungcn der Benzidin- bezw. Tolidinsulfosäuren der Formeln : 
 EMI1.1 
 
 EMI1.2 
 

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of orange disazo dyes for wool.



   In the parent patent, an ancestor for the preparation of mill-fast disazo dyes was described, which consists in that the tetrazo compounds of benzidine or tolidine-m-disulfonic acid with 2 molecules of methyl ketol (α-methylindole) or in any order with 1 molecule of methyl ketol (α-methylindole) and 1 Molokü) I-phenyl-3-methyl-5-pyrazolone couples.



   It has now been found that if the tetrazo compounds mentioned are the benzidine or. Tolidinsulfonic acids of the formulas:
 EMI1.1
 
 EMI1.2
 

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

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT23906D 1904-10-31 1905-07-22 Process for the preparation of orange disazo dyes for wool. AT23906B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1904163141D DE163141C (en) 1904-10-31

Publications (1)

Publication Number Publication Date
AT23906B true AT23906B (en) 1906-04-25

Family

ID=5683417

Family Applications (1)

Application Number Title Priority Date Filing Date
AT23906D AT23906B (en) 1904-10-31 1905-07-22 Process for the preparation of orange disazo dyes for wool.

Country Status (1)

Country Link
AT (1) AT23906B (en)

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