AT38543B - Process for the preparation of leuco bodies from dyes of the gallocyanin series. - Google Patents

Process for the preparation of leuco bodies from dyes of the gallocyanin series.

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Publication number
AT38543B
AT38543B AT38543DA AT38543B AT 38543 B AT38543 B AT 38543B AT 38543D A AT38543D A AT 38543DA AT 38543 B AT38543 B AT 38543B
Authority
AT
Austria
Prior art keywords
dyes
gallocyanin
series
preparation
leuco bodies
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 DE1907200016D external-priority patent/DE200016C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT38543B publication Critical patent/AT38543B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von Leukokörpern aus Farbstoffen der Gallocyaninreihe. 
 EMI1.1 
 lösensiesichmitblauerFarbe. 



   Die Dauer der Reaktion variiert sehr mit der Höhe   der Temperatur   ; je niedriger diese 
 EMI1.2 
   erniedrigenden Verdünnungsmitteln, wie Wasser, Alkohol u. s. w.   



   Die Produkte können ausser als Leukoverbindungen auch nach der Oxydation als Farbstoffe   ihre Verwendung finden.   

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of leuco bodies from dyes of the gallocyanin series.
 EMI1.1
 dissolve with blue color.



   The duration of the reaction varies greatly with the temperature; the lower this
 EMI1.2
   degrading diluents such as water, alcohol and the like. s. w.



   In addition to being used as leuco compounds, the products can also be used as dyes after oxidation.

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

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von Leukokörpern aus Farbstoffen der Gallocyaninreihe, dadurch 5 gekennzeichnet, dass man diese Farbstoffe mit oder ohne Zusatz von Verdünnungsmitteln mit Glvcerin erhitzt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of leuco bodies from dyes of the gallocyanin series, characterized in that these dyes are heated with glycerine with or without the addition of diluents. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT38543D 1907-02-28 1908-07-24 Process for the preparation of leuco bodies from dyes of the gallocyanin series. AT38543B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907200016D DE200016C (en) 1907-02-28

Publications (1)

Publication Number Publication Date
AT38543B true AT38543B (en) 1909-08-25

Family

ID=5759010

Family Applications (1)

Application Number Title Priority Date Filing Date
AT38543D AT38543B (en) 1907-02-28 1908-07-24 Process for the preparation of leuco bodies from dyes of the gallocyanin series.

Country Status (1)

Country Link
AT (1) AT38543B (en)

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