DE821983C - Process for the production of anti-rust primers - Google Patents
Process for the production of anti-rust primersInfo
- Publication number
- DE821983C DE821983C DEM3658A DEM0003658A DE821983C DE 821983 C DE821983 C DE 821983C DE M3658 A DEM3658 A DE M3658A DE M0003658 A DEM0003658 A DE M0003658A DE 821983 C DE821983 C DE 821983C
- Authority
- DE
- Germany
- Prior art keywords
- rust
- silica gel
- production
- pore
- quinoidin
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zur Herstellung von Rostschutzgrundierfarben Als Ersatz für die giftige und wenig ausgiebige Bleimennige, die auch nicht aufgespritzt werden darf, ist das Chinoidin zu einem Begriff geworden. Während das diesbezüglich erste Verfahren (vgl. deutsche Patentschrift 549 866) noch unvollkommen war, war der Rostschutz durch die Öllöslichmachung gemäß der deutschen Patentschrift 7o6462 schon weit besser, besonders infolge der feinen Verteilung des Chinoidins und für die meisten Fälle ausreichend.Process for the manufacture of anti-rust primers as a substitute for the poisonous and not very abundant red lead, which is also not sprayed on is allowed, the chinoidin has become a household name. While the first in this regard Procedure (cf. German patent 549 866) was still incomplete, was the rust protection by the oil solubilization according to the German patent specification 7o6462 already much better, especially due to the fine distribution of the quinoidine and for most cases sufficient.
Es hat sich nun gezeigt, und dies ist ein erheblicher technischer Fortschritt, daß die Passivierung des Eisens noch eine weit stärkere wird, wenn statt der Öllöslichmachung des zu verwendenden Chinoidins eine unmittelbare Überträgerbrücke, d. h. eine unmittelbare Substanzberührung zwischen Untergrund und Chinoidin geschaffen wird. Chinoidin ist in niederen und höheren Alkoholen sehr gut löslich. So lösen z. B. ioo Teile Butylalkohol etwa 67 Teile Chinoidin. Um in der Farbe eine Ausfällung zu verhindern, wird Kieselgel mit einer solchen konzentrierten alkoholischen Lösung des Chinoidins beladen. Nach der Ab- und Adsorption und dem Trocknen werden etwa 5 °/o beladenen Kieselgels der üblichen Rostschutzgrundierfarbe zugesetzt.It has now been shown, and this is a considerable technical one Progress that the passivation of iron becomes even stronger, if instead of the oil-solubilization of the chinoidins to be used, a direct carrier bridge, d. H. a direct substance contact is created between the substrate and the quinoidin will. Quinoidin is very soluble in lower and higher alcohols. So solve z. B. 100 parts of butyl alcohol, about 67 parts of quinoidine. To have a precipitate in the color to prevent, silica gel is made with such a concentrated alcoholic solution of the chinoidins. After absorption and adsorption and drying, about 5% loaded silica gel was added to the usual anti-rust primer paint.
Um Wasserspuren auf dem Eisen unschädlich zu machen, wird zweckmäßig das Chinoidinpigment mit Taufeuchtzusatz gemäß deutscher Patentschrift 701 295 angewandt. Dabei ist es sehr wichtig, daß der weitere Zusatz von das Eisen vor wäßriger Einwirkung schützenden Korrosionsschutzmitteln, z. B. Diphenylamin, jeden beginnenden Unterrostungsangriff unterbindet.In order to make traces of water on the iron harmless, it is useful the quinoidin pigment with the addition of dew moisture according to German patent specification 701 295 was used. It is very important that the further addition of the iron before water exposure protective anti-corrosive agents, z. B. Diphenylamine, any beginning Prevents corrosion attack.
Eine weitere Unterstützung der passivierenden Chinoidinwirkung gibt der Zusatz von chemisch aktiven, sich mit dem Eisen besonders bei Feuchtigkeit allmählich verbindenden Kieselgel. Auf diese Art wird sogar eine gewisse Rostverzehrung bewirkt.A further support of the passivating quinoidin effect gives the addition of chemically active, gradually increasing with the iron especially with moisture connecting silica gel. In this way, a certain amount of rust is even consumed.
Von sonstigen bekannten passivierenden Substanzen unterstützt ein sonst noch unwirksam bleibender geringer Zusatz von Bleidicyanamid die rostschützende Wirkung des Chinoidins.Supported by other known passivating substances Otherwise still ineffective small addition of lead cyanamide the rust-protecting one Effect of the chinoidins.
Eine solche Rostschutzgrundierfarbe übertrifft die Bleimennige in ihrer Wirkung und ist dabei mindestens doppelt so ausgiebig wie diese. Beispiel Zu einer gewöhnlichen Rostschutzgrundierfarbe werden 5 % mit konzentrierter Chinoidinlösung beladenes Kieselgel nach dem Eintrocknen hinzugegeben, ferner 0,5 % Diphenylamin, 3 % Bleidicyanamid und 2 % Diacetonalkohol.Such an anti-rust primer paint surpasses the red lead in their effect and is at least twice as extensive as this. example A common anti-rust primer paint is 5% with a concentrated quinoidin solution loaded silica gel added after drying, also 0.5% diphenylamine, 3% lead cyanamide and 2% diacetone alcohol.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM3658A DE821983C (en) | 1950-05-28 | 1950-05-28 | Process for the production of anti-rust primers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM3658A DE821983C (en) | 1950-05-28 | 1950-05-28 | Process for the production of anti-rust primers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE821983C true DE821983C (en) | 1951-11-22 |
Family
ID=7292281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM3658A Expired DE821983C (en) | 1950-05-28 | 1950-05-28 | Process for the production of anti-rust primers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE821983C (en) |
-
1950
- 1950-05-28 DE DEM3658A patent/DE821983C/en not_active Expired
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