CH184509A - Process for the production of a transparent lacquer. - Google Patents

Process for the production of a transparent lacquer.

Info

Publication number
CH184509A
CH184509A CH184509DA CH184509A CH 184509 A CH184509 A CH 184509A CH 184509D A CH184509D A CH 184509DA CH 184509 A CH184509 A CH 184509A
Authority
CH
Switzerland
Prior art keywords
dye
production
lacquer
deep black
transparent
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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
Application filed by Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH184509A publication Critical patent/CH184509A/en

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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 173751    Verfahren zur Herstellung eines transparenten Lackes.    Es wurde gefunden, dass es gelingt, einen  transparenten Lack' mit ausgezeichneten  Echtheitseigenschaften herzustellen, indem  man den     Monoazofarbstoff    aus     diazotiertem          5-Nitro-2-amino-phenol    und     1.3-Diamino-          benzol,    eine Verbindung des 6wertigen  Chroms und einen Lack zusammenbringt  und durch gelindes Erwärmen des Gemisches  das tief schwarz gefärbte     Chromkomplexsalz     des     Farbstoffes    sich bilden lässt.

   Man erhält  je nach der     Farbstoffkonzentration    einen  grau bis tief schwarz gefärbten, transparen  ten     Lack,    der gut lichtechte Anstriche ergibt.  Seine Verwendung liegt auf allen     Gebieten     der     Anstrichtechnik,    , wo grosse Ansprüche  an die Lichtechtheit gestellt werden.  



  Als Ausgangslacke kommen die meisten       Lacke    und Firnisse der Technik in Frage.  die     Acetylzellulose-    und     Nitrozelluloselacke.     Lacke aus Kunstharzen, wie     Glyzerin-          Phthalsäureanhydrid-Kondensationsprodukte.          Chlorkautschuklacke,        Gelatinelösungen,    Sprit  lacke, Leinöl und     Lithographenfirnisse.       <I>Beispiel:

  </I>  0,8 g des     Monoazofarbstoffes    aus     diazo-          tiertem        5-Nitro-2-amino-phenol    und     1.3-          Diamino-benzol    werden in 100 g     Nitro-          zelluloselack    gelöst, mit 0,4 g     Natrium-          bichromat    versetzt und durch gelindes Er  wärmen in den gut lichtechten, tief schwar  zen Lack übergeführt.   Der     Nitrozelluloselack    kann z.

   B. wie  folgt zusammengesetzt sein:  155 Teile     Kollodiumwolle        butanolfeucht     400 Teile     Butylacetat     20 Teile     Dibutylphthalat     25 Teile     Trikresylphosphat     400 Teile     Athylalkohol   <B>96%.</B>



  <B> Additional patent </B> to main patent no. 173751 Process for the production of a transparent paint. It has been found that it is possible to produce a transparent varnish with excellent fastness properties by combining the monoazo dye from diazotized 5-nitro-2-aminophenol and 1,3-diamino-benzene, a compound of hexavalent chromium and a varnish gently warming the mixture, the deep black colored chromium complex salt of the dye can be formed.

   Depending on the dye concentration, a gray to deep black colored, transparen th lacquer is obtained, which gives good lightfast paints. Its use is in all areas of painting technology, where great demands are made on lightfastness.



  Most technical lacquers and varnishes can be used as starting lacquers. the acetyl cellulose and nitrocellulose varnishes. Paints made from synthetic resins, such as glycerine-phthalic anhydride condensation products. Chlorinated rubber paints, gelatin solutions, fuel paints, linseed oil and lithography varnishes. <I> example:

  0.8 g of the monoazo dye from diazotized 5-nitro-2-aminophenol and 1,3-diamino-benzene are dissolved in 100 g of nitrocellulose varnish, 0.4 g of sodium bichromate is added and the mixture is washed gently It warms up in the lightfast, deep black lacquer. The nitrocellulose varnish can e.g.

   B. be composed as follows: 155 parts of collodion wool moist butanol 400 parts of butyl acetate 20 parts of dibutyl phthalate 25 parts of tricresyl phosphate 400 parts of ethyl alcohol <B> 96%. </B>

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines trans parenten Lackes, dadurch gekennzeichnet, dass man den Monoazofarbstoff aus diazo- tiertem 5-Nitro-2-amino-phenol und 1.3- Diamino-benzol, eine Verbindung des 6wer- tigen Chroms und einen Lack zusammen- bringt und durch gelindes Erwärmen des Gemisches das tief schwarz gefärbte Chrom komplegsalz des Farbstoffes sich bilden lässt. PATENT CLAIM: Process for the production of a transparent lacquer, characterized in that the monoazo dye from diazotized 5-nitro-2-aminophenol and 1,3-diamino-benzene, a compound of 6-valued chromium and a lacquer is brought together and by gently warming the mixture, the deep black colored chromium complex salt of the dye can be formed. Klan erhält je nach der Farbstoff konzentration einen grau bis tief schwarz gefärbten, transparenten Lack, der gut licht- echte Anstriche ergibt. Seine Verwendung liegt auf allen Gebieten der Anstrichtechnik, wo grosse Ansprüche an die Lichtechtheit gestellt werden. Depending on the concentration of the dye, Klan is given a gray to deep black colored, transparent varnish that produces good lightfast paints. It is used in all areas of painting technology where high demands are made on lightfastness.
CH184509D 1932-12-19 1935-09-09 Process for the production of a transparent lacquer. CH184509A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE173751X 1932-12-19
CH184509T 1935-09-09

Publications (1)

Publication Number Publication Date
CH184509A true CH184509A (en) 1936-05-31

Family

ID=32094440

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184509D CH184509A (en) 1932-12-19 1935-09-09 Process for the production of a transparent lacquer.

Country Status (1)

Country Link
CH (1) CH184509A (en)

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