AT20404B - Process for the production of lightfast colored lacquers. - Google Patents

Process for the production of lightfast colored lacquers.

Info

Publication number
AT20404B
AT20404B AT20404DA AT20404B AT 20404 B AT20404 B AT 20404B AT 20404D A AT20404D A AT 20404DA AT 20404 B AT20404 B AT 20404B
Authority
AT
Austria
Prior art keywords
lightfast
production
colored lacquers
colored
lacquers
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 DE1903154533D external-priority patent/DE154533C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT20404B publication Critical patent/AT20404B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
Die Azofarbstoffe aus den Diazoverbindungen des   Amidoazobenzols   und der Amido-   azobenzolmonosulfosa. ure   und Naphtolsnlfosäuren liefern nur Farblacke von geringer Lichtechtheit. Es wurde nun die überraschende Beobachtung gemacht, dass man mit Hilfe der entsprechenden Farbstoffe aus Amidoazobenzoldisulfosäure sehr lichtechte Farblacke herstellen kann. 



   Beispiel. 



   () Teile des in   üblicher   Weise durch Kuppeln der Diazoverbindung der Amidoazobenzoldisulfosäure mit 2-Naphtol-3-6-disulfosäure dargestellten Farbstoffes werden in 500 Teilen 
 EMI1.2 
 schlag wird abfiltriert, ausgewaschen und getrocknet und der Lack in der üblicben Weise fertig gemacht. Derselbe hat eine blaustichig rote Nuance,
In analoger Weise verfährt man bei Verwendung anderer als der oben erwähnten Azofarbstoffe. So liefern z. B. die entsprechenden Farbstoffe aus 2-Naphtol-6-8-disulfo- 
 EMI1.3 
 2-Naphtol-3-6-8-trisulfosäureeinblasutichigesRot. 



   Selbstverständlich kann man an Stelle des im Beispiel beschriebenen Verfahrens 
 EMI1.4 
 anwenden. 

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



   <Desc / Clms Page number 1>
 
 EMI1.1
 
The azo dyes from the diazo compounds of amidoazobenzene and amidoazobenzolmonosulfosa. Acids and naphtholefoic acids only provide colored lacquers with poor lightfastness. The surprising observation has now been made that very lightfast colored lakes can be produced from amidoazobenzene disulfonic acid with the aid of the corresponding dyes.



   Example.



   () Parts of the dye prepared in the usual way by coupling the diazo compound of amidoazobenzenesulfonic acid with 2-naphthol-3-6-disulfonic acid are divided into 500 parts
 EMI1.2
 Impact is filtered off, washed out and dried and the paint finished in the usual way. It has a bluish red shade,
An analogous procedure is followed when using azo dyes other than those mentioned above. So deliver z. B. the corresponding dyes from 2-naphthol-6-8-disulfo-
 EMI1.3
 2-Naphtol-3-6-8-trisulfonic acid injection, blue red.



   Of course, instead of the method described in the example
 EMI1.4
 apply.

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

Claims (1)

PATENT-ANSPRUCH : EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT20404D 1903-05-30 1904-06-25 Process for the production of lightfast colored lacquers. AT20404B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1903154533D DE154533C (en) 1903-05-30

Publications (1)

Publication Number Publication Date
AT20404B true AT20404B (en) 1905-06-10

Family

ID=5676376

Family Applications (1)

Application Number Title Priority Date Filing Date
AT20404D AT20404B (en) 1903-05-30 1904-06-25 Process for the production of lightfast colored lacquers.

Country Status (1)

Country Link
AT (1) AT20404B (en)

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