CH184507A - Process for the production of a transparent, greenish yellow lacquer. - Google Patents

Process for the production of a transparent, greenish yellow lacquer.

Info

Publication number
CH184507A
CH184507A CH184507DA CH184507A CH 184507 A CH184507 A CH 184507A CH 184507D A CH184507D A CH 184507DA CH 184507 A CH184507 A CH 184507A
Authority
CH
Switzerland
Prior art keywords
transparent
dye
production
varnish
greenish yellow
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 CH184507A publication Critical patent/CH184507A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/38Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
    • C09B45/40Chromium compounds

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 173751.    Verfahren zur Herstellung eines transparenten,     grünstichig    gelben Lackes.    Es wurde gefunden,     da3,    es gelingt, einen       transparenten,        grünstichig    gelben     Lack    mit       ausgezeichneten;

          Echtheitseigenschaften    her  zustellen, indem man den     Monoazofarbstoff     aus     diazotiertem        3-Chlor-anilin    und     2-Oxy-          benzoesäure,    eine Verbindung des     6wertigen     Chroms und einen     Lack        zusammenbringt     und durch gelindes     Erwärmen    des Gemisches  das gelb gefärbte     Chromkompl-egsalz    des  Farbstoffes sieh bilden lässt.

   Man erhält je  nach der     Farbstoffkonzentration    einen heller  oder dunkler gelb gefärbten, transparenten       hack    von sehr grosser Reinheit des Farb  tones, der     hervorragend    lichtechte Anstriche  ergibt. Seine     Verwendung    liegt auf allen  Gebieten der     Anstxichtechnik,    wo grosse An  sprüche 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,          Chlorkautschuklaeke,        Gelatinelösungen,Sprit-          lacke,        Leinöl    und     Lithographenfirnisse.       <I>Beispiel:

  </I>  1 g des     Monoazofarbstoffes    aus     diazo-          tiertem        3-Chloranilin    und     2-Ogy-benzoe-          säure    wird     in    100, g     Nitrozelluloselack    ge  löst, mit 0,5 g     Natriumbichromat    versetzt  und durch gelindes     Erwärmen        in.    den her  vorragend lichtechten,     grünstich    gelben     hack          übergeführt.     



  Der     Nitrozelluloselack    kann z. B.     wie     folgt zusammengesetzt sein:       155    Teile     Kollodiumwolle,        butanolfeucht     150 Teile     Recyl    Nr. 19, Harz aus       Glyzeiin-Phthalsäureanhydrid     8,0 Teile     RecyTbalsam        Nr.3,3,    Balsam  eines Harzes auf     Glyzerin-Phthal-          säuregrundlage     200 Teile     Äthyllaktat     100 Teile     Butylacetat          W0    Teile Aceton  215 Teile Benzol.



      Additional patent to main patent no. 173751. Process for the production of a transparent, greenish yellow paint. It has been found that a transparent, green-tinged yellow lacquer with excellent;

          Fastness properties are produced by combining the monoazo dye from diazotized 3-chloro-aniline and 2-oxybenzoic acid, a compound of hexavalent chromium and a varnish, and by gently warming the mixture, the yellow-colored chromium complex salt of the dye is allowed to form.

   Depending on the dye concentration, a lighter or darker yellow colored, transparent hack of very high purity of the color tone is obtained, which gives excellent lightfast paints. Its use is in all areas of the tapping technique, where great demands are made on lightfastness.



  Most technical lacquers and varnishes, acetyl cellulose and nitrocellulose lacquers, lacquers made from synthetic resins, such as glycerol-phthalic anhydride condensation products, chlorinated rubber lacquers, gelatin solutions, fuel lacquers, linseed oil and lithography varnishes, are suitable as starting lacquers. <I> example:

  </I> 1 g of the monoazo dye from diazo- tated 3-chloroaniline and 2-ogy-benzoic acid is dissolved in 100 g of nitrocellulose varnish, mixed with 0.5 g of sodium dichromate and heated gently in the lightfast, greenish yellow hack transferred.



  The nitrocellulose varnish can e.g. B. be composed as follows: 155 parts of collodion wool, moist butanol 150 parts of Recyl No. 19, resin from glycerol phthalic anhydride 8.0 parts RecyTbalsam No. 3.3, balsam of a resin based on glycerol phthalic acid 200 parts of ethyl lactate 100 parts of butyl acetate W0 parts of acetone, 215 parts of benzene.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines grün.- stichig gelben, transparenten Lackes, da- durch gekennzeichnet, dass man den Mono azofarbstoff aus diazotiertem 3-Chloranilin und 2-Oxy benzoesäure, PATENT CLAIM: Process for producing a green, tinged yellow, transparent varnish, characterized in that the mono azo dye is made from diazotized 3-chloroaniline and 2-oxybenzoic acid, eine Verbindung des 6wertigen Chroms und einen Lack zusam menbringt und durch gelindes Erwärmen des Gemisches das gelb gefärbte Chromkom- plexsalz des Farbstoffes sich bilden, lässt. brings together a compound of hexavalent chromium and a varnish and, by gently heating the mixture, the yellow colored chromium complex salt of the dye can be formed. Man erhält je nach der Farbstoffkonzentra- tion einen heller oder dunkler gelb gefärbten, transparenten Lack von sehr grosser Reinheit des Farbtones, der hervorragend lichtechte Anstriche ergibt. Seine Verwendung liegt auf allen Gebieten der Anstriehtechnik, wo grosse Ansprüche an die Lichtechtheit ge stellt werden. Depending on the dye concentration, a lighter or darker yellow colored, transparent varnish is obtained with a very high degree of purity of the hue, which gives excellent lightfast coatings. It is used in all areas of painting technology where high demands are placed on lightfastness.
CH184507D 1932-12-19 1935-09-09 Process for the production of a transparent, greenish yellow lacquer. CH184507A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE173751X 1932-12-19
CH184507T 1935-09-09

Publications (1)

Publication Number Publication Date
CH184507A true CH184507A (en) 1936-05-31

Family

ID=32094438

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184507D CH184507A (en) 1932-12-19 1935-09-09 Process for the production of a transparent, greenish yellow lacquer.

Country Status (1)

Country Link
CH (1) CH184507A (en)

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