DE1519023B2 - FILM FORMERS FOR PROTECTIVE COATS ON METALS - Google Patents

FILM FORMERS FOR PROTECTIVE COATS ON METALS

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Publication number
DE1519023B2
DE1519023B2 DE19621519023 DE1519023A DE1519023B2 DE 1519023 B2 DE1519023 B2 DE 1519023B2 DE 19621519023 DE19621519023 DE 19621519023 DE 1519023 A DE1519023 A DE 1519023A DE 1519023 B2 DE1519023 B2 DE 1519023B2
Authority
DE
Germany
Prior art keywords
film former
corrosion
additional content
film
former according
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.)
Granted
Application number
DE19621519023
Other languages
German (de)
Other versions
DE1519023C3 (en
DE1519023A1 (en
Inventor
Auf Nichtnennung Antrag
Original Assignee
Brunei, Henri, Paris
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 Brunei, Henri, Paris filed Critical Brunei, Henri, Paris
Publication of DE1519023A1 publication Critical patent/DE1519023A1/en
Publication of DE1519023B2 publication Critical patent/DE1519023B2/en
Application granted granted Critical
Publication of DE1519023C3 publication Critical patent/DE1519023C3/en
Expired legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • 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
    • C09D105/00—Coating compositions based on polysaccharides or on their derivatives, not provided for in groups C09D101/00 or C09D103/00
    • 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
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    • C10M173/00—Lubricating compositions containing more than 10% water
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    • C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
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    • C10M2201/05—Metals; Alloys
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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  • Wood Science & Technology (AREA)
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  • Lubricants (AREA)

Description

a) Natriumalginat, Gelatine, boraxmodifiziertem Kasein, Guargummi, Carboxymethylcellulose, oder Stärkeabbauprodukten als Kolloid,a) Sodium alginate, gelatin, borax-modified casein, guar gum, carboxymethyl cellulose, or starch degradation products as colloid,

Die Erfindung bezieht sich auf Filmbildner für Schutzüberzüge auf Metallen aus wäßrigen Mischungen von Kolloiden, Korrosionsinhibitoren und Netzmitteln. The invention relates to film formers for protective coatings on metals from aqueous mixtures of colloids, corrosion inhibitors and wetting agents.

Derartige Filmbildner sind bereits bekannt. So ist in der US-PS 28 11465 ein korrosionsschützender, nichthygroskopischer Überzug beschrieben, der aus einem wäßrigen Gemisch gebildet wird, das Ammoniumamidopolyphosphate und Ammoniumphosphate als Hauptbestandteile enthält, ferner Carboxymethylzellulose, Pflanzengummi, Stärke, Polyvinylalkohol oder Alginate sowie ein Netzmittel. Nachteilig an diesem bekannten Filmbildner ist, daß die Konzentration der verschiedenen Komponenten genau aufeinander abgestimmt werden muß, um die gewünschte korrosionsschützende Wirkung zu erhalten.Such film formers are already known. So is in US-PS 28 11465 a corrosion protection, described non-hygroscopic coating which is formed from an aqueous mixture, the ammonium amidopolyphosphate and ammonium phosphates as main components, furthermore carboxymethyl cellulose, Vegetable gum, starch, polyvinyl alcohol or alginates and a wetting agent. Disadvantageous at This known film former is that the concentration of the various components is exactly one another must be coordinated in order to obtain the desired anti-corrosive effect.

Weiterhin ist ein abwaschbares Metallbeschichtungsmittel bekannt, welches aus wäßrigen Gemischen von Alkalimetallnitrit und Verdickern, beispielsweise Stärke, besteht, wobei noch Netzmittel und Feuchthaltemittel, wie Glyzerin, zugesetzt werden können (GB-PS 6 48 765). Um einen ausreichenden Korrosionsschutz zu erhalten, ist es dabei erforderlich, daß das Alkalinitrit neben Wasser den Hauptanteil des Gemisches bildet.Furthermore, a washable metal coating agent is known which consists of aqueous mixtures of alkali metal nitrite and thickeners, for example starch, with wetting agents and humectants, such as glycerine, can be added (GB-PS 6 48 765). To provide adequate protection against corrosion To obtain, it is necessary that the alkali metal nitrite, in addition to water, the main part of the Mixture forms.

b) wasserlöslichen antikorrosiven neutralen Salzen von Aminen, Polyaminen, Aminoalkoholen oder Polyaminoalkoholen mit Chrom-, Phosphor-, Salpeter-, Bor- oder salpetriger Säure als Korrosionsinhibitor undb) water-soluble anticorrosive neutral salts of amines, polyamines, amino alcohols or Polyamino alcohols with chromium, phosphoric, nitric, boric or nitrous acid as a corrosion inhibitor and

c) Alkylphenol-Äthylenoxid-Kondensationsprodukten als Netzmittel aufweist.c) having alkylphenol-ethylene oxide condensation products as wetting agents.

Vorteilhafte Weiterbildungen des erfindungsgemäßen Filmbildners ergeben sich, wenn die Maßnahmen der Ansprüche 2 bis 6 verwirklicht werden.Advantageous further developments of the film former according to the invention result when the measures of claims 2 to 6 are realized.

Die überlegene korrosionsinhibierende Wirkung der erfindungsgemäßen Filmbildner gegenüber bekannten Filmbildnern geht aus der nachstehenden Tabelle hervor. Darin ist mit C1 ein Filmbildner gemäß der US-PS 28 11 456 bezeichnet, welcher aus 14 Gewichtsprozent Ammoniumamidopolyphosphat, 13 Gewichtsprozent Monoammoniumphosphat, 1 Gewichtsprozent Carboxymethylcellulose, 0,2 Gewichtsprozent Dibutylnatriumsulfosuccinat und 71,8 Gewichtsprozent Wasser besteht, mit C2 ein Filmbildner nach der GB-PS 6 48 765, welcher aus 20 Gewichtsprozent Natriumnitrit, 7,5 Gewichtsprozent Weizenstärke, 3 Gewichtsprozent Glyzerin, 0,5 Gewichtsprozent Alkylnaphthalinsulfonat und 69,0 Gewichtsprozent Was-The superior corrosion-inhibiting effect of the film formers according to the invention compared to known film formers can be seen from the table below. Therein with C 1 a film former according to US-PS 28 11 456 is designated, which consists of 14 weight percent ammonium amidopolyphosphate, 13 weight percent monoammonium phosphate, 1 weight percent carboxymethyl cellulose, 0.2 weight percent dibutyl sodium sulfosuccinate and 71.8 weight percent water, with C 2 a film former GB-PS 6 48 765, which consists of 20 percent by weight sodium nitrite, 7.5 percent by weight wheat starch, 3 percent by weight glycerol, 0.5 percent by weight alkyl naphthalene sulfonate and 69.0 percent by weight water

3 43 4

ser besteht, und mit A ein erfindungsgcmäßer Film- neutralen Salze und der Netzmittel der bekanntenThis consists, and with A a film-neutral salts according to the invention and the wetting agents of the known

bildner folgender Zusammensetzung: Filmbildner gegen die erfindungsgemäß zum EinsatzFormers of the following composition: Film formers against those used according to the invention

Gewichtsprozent kommenden Stoffe, welche als solche vergleichbareWeight percent coming substances, which as such are comparable

Halbabgebaute Maisstärke .-12,00 chemische und physikalische Eigenschaften wie dieSemi-degraded corn starch. -12.00 chemical and physical properties like that

Aminphosphat :· 2,50 5 Komponenten der bekannten Filmbildner aufweisen,Amine phosphate : have 2.50 5 components of the known film formers,

Kondensationsprodukt aus 1 Mol eine derartig positive Veränderung der korrosions-Condensation product from 1 mol such a positive change in the corrosion

Nonylphenol und 9 Mol Äthylen- inhibierenden Wirkung hervorgerufen wird.Nonylphenol and 9 moles of ethylene-inhibiting effect.

oxyd 0,25 Der erfindungsgemäße Filmbildner vermag die zuoxide 0.25 The film former according to the invention is capable of

Wasser 85,25 schützende Metalloberfläche zu benetzen und sich da-Water 85.25 to wet the protective metal surface and

~Yqq~qq~ io durch auf der Oberfläche auszubreiten, ferner so daran zu haften, daß die Metalloberfläche eine gleichmäßige~ Yqq ~ qq ~ io by spreading it on the surface, furthermore so on it to adhere that the metal surface has a uniform

Die Filmbildner C1, C2 und A wurden jeweils auf und geeignete Menge der korrosionsinhibierenden einen Satz gereinigter Stahlplatten aufgetragen und Lösung aufnimmt. Das Trocknen dieser Lösung führt 24 Stunden bei Raumtemperatur getrocknet. An- zur Bildung eines kompakten, festklebenden Films schließend wurden die derart behandelten Platten in 15 auf der zu schützenden Metallfläche, der eine hohe eine Salzsprühkammer gegeben und bei 35° C einem mechanische Widerstandsfähigkeit gegen Beschädikontinuierlich zugeführten Salzdampf ausgesetzt. Der gungen besitzt. Entsprechend der Stärke der Haupt-Anteil der korrodierten Oberfläche der Platten wurde Ursache der Korrosion, der Luftfeuchtigkeit, dehnen durch Planimetrie ermittelt. sich die erfindungsgemäß verwendeten Kolloide ausThe film formers C 1 , C 2 and A were each applied to and appropriate amount of the corrosion-inhibiting set of cleaned steel plates and the solution was taken up. The drying of this solution leads to drying for 24 hours at room temperature. Subsequent to the formation of a compact, firmly adhesive film, the plates treated in this way were exposed to a salt spray chamber on the metal surface to be protected, and exposed to a mechanical resistance to damage at 35 ° C., continuously supplied with salt vapor. Who owns gungen. Corresponding to the strength of the main part of the corroded surface of the plates, the cause of the corrosion, the humidity, stretching was determined by planimetry. the colloids used according to the invention are selected

20 und vermögen diese zu absorbieren. Durch diese20 and are able to absorb them. Through this

Dauer der Salzdampf- Filmbildner Korrodierte Flüssigkeitsaufnahme bildet sich in dem hydrophilenDuration of the salt vapor film-forming agent Corroded liquid absorption forms in the hydrophilic

einwirkung in h Oberfläche Schutzuberzug eine wäßrige immobilisierte Lösung,exposure in h surface protective coating an aqueous immobilized solution,

in % die eine hohe Konzentration an den erfindungsgemäßin% the a high concentration of the invention

:— zum Einsatz kommenden Korrosionsinhibitoren auf- : - Corrosion inhibitors that are used

4 Q 2 25 weist und die in enger Berührung mit dem Metall4 Q 2 2 5 has and which is in close contact with the metal

Q1 15 gehalten wird. Q 1 15 is held.

^2 Q Lange Erfahrungen haben gezeigt, daß der durch^ 2 Q Long experience has shown that the

die Erfindung erreichte Schutz dauerhaft und sicherthe invention achieved protection permanently and safely

8 C1 6 ist, selbst bei sehr feuchter Atmosphäre. In Gegenwart8 C 1 6, even in a very humid atmosphere. In present

C2 35 30 korrodierender chemischer Dämpfe ist es im übrigenIt is C 2 35 30 corrosive chemical vapors, moreover

A 0 vorteilhaft, dem erfindungsgemäßen Filmbildner einenA 0 advantageous to the film former according to the invention

1~ P ..p. neutralisierenden Zusatz, beispielsweise Kalziumcarbo-1 ~ P ..p. neutralizing additive, for example calcium carbon

p1 fi0 natpulver, zuzufügen.p 1 fi0 natpulver, add.

.2 0 Das Entfernen der erfindungsgemäßen Schutzüber-. 2 0 The removal of the protective cover according to the invention

35 züge erfolgt in einfacher Weise durch Waschen mit35 trains is done in a simple manner by washing with

24 C1 18 Wasser, vorzugsweise mit heißem Wasser oder einer24 C 1 18 water, preferably with hot water or a

C2 75 wäßrigen Lösung, die einen Korrosionsinhibitor ent-C 2 75 aqueous solution containing a corrosion inhibitor

A 0 hält, ohne daß irgendein organisches LösungsmittelA 0 holds without any organic solvent

verwendet werden muß.must be used.

36 Q 25 40 T3je erfindungsgemäßen Filmbildner vermitteln ne-36 Q 25 40 T3j e film formers according to the invention convey ne-

^2 "" ben dem Korrosionsschutz gleichzeitig eine Schmierung^ 2 "" ben the corrosion protection at the same time a lubrication

A 1 metallischer Flächen. Sie können deshalb beispiels-A 1 metallic surfaces. You can therefore for example

48 Q 33 weise auch beim Biegen von Eisenbändern oder bei der48 Q 33 also wise when bending iron strips or when bending

Q1 98 Herstellung geschweißter Röhren verwendet werden.Q 1 98 Manufacture of welded tubes are used.

A* 1 45 Außerdem können die erfindungsgemäßen LösungenA * 1 45 In addition, the solutions according to the invention

als selbstschmierende, korrosionsinhibierende undas self-lubricating, corrosion-inhibiting and

72 C1 45 nicht brennbare Kühlflüssigkeiten für Kühler, hydrau-72 C 1 45 non-flammable coolants for radiators, hydraulic

C2 100 lische Getriebe und Werkzeugmaschinen eingesetztC 2 100 lische gears and machine tools used

A 5 werden, wobei wasserlösliche Produkte hinzugefügtA 5 are added, with water-soluble products being added

of. c 60 5° werden können, die Schmiereigenschaften besitzen, of. c 60 5 ° who can, who have lubricating properties,

c x .QQ wie beispielsweise Polyalkohole, Polyäthylenglykole c x .QQ such as polyalcohols, polyethylene glycols

A 2 1Q oder Polyaminoalkohole. Ferner können Mineralöle A 2 1Q or polyamino alcohols. Mineral oils can also be used

zugegeben werden, wodurch Emulsionen erhaltenare added, whereby emulsions are obtained

120 C1 100 werden, die beispielsweise beim Ziehen oder Entfernen120 C 1 100, for example when pulling or removing

C2 100 55 der Formen verwendet werden können. Durch Ver-C 2 100 55 of the forms can be used. By

A 28 dünnen mit Wasser erhält man dabei weiße Emulsionen, die zur Metallbearbeitung an Werkzeug-A 28 thinning with water results in white emulsions that are used for metalworking on tool

Die in vorstehender Tabelle angegebenen Versuchs- maschinen geeignet sind.The test machines specified in the table above are suitable.

ergebnisse zeigen die überlegene korrosionsinhibieren- Daraus ergibt sich, daß die Anwendungsarten fürResults show the superior corrosion inhibit- It follows that the types of application for

de Wirkung des erfindungsgemäßen Filmbildners A 60 die erfindungsgemäßen Filmbildner sehr zahlreichde effect of the film former A 60 according to the invention, the film formers according to the invention are very numerous

gegenüber den bekannten Filmbildnern C1 und C2, sind. Allgemein kann man sagen, daß die erfindungs-compared to the known film formers C 1 and C 2 are. In general it can be said that the inventive

obwohl der Gehalt an Aminphosphat als korrosions- gemäßen Filmbildner immer dann eingesetzt werdenalthough the amine phosphate content is always used as a corrosion-resistant film former

inhibierender Komponente im erfindungsgemäßen können, wenn metallische Gegenstände gelagert.inhibiting component in the invention can when stored metallic objects.

Filmbildner A erheblich geringer ist als der Gehalt an transportiert oder bearbeitet werden sollen und dabeiFilm former A is considerably lower than the content of being transported or processed and thereby

korrosionsinhibierenden Komponenten in den Film- 65 gegen die durch Feuchtigkeit, Staub oder chemischeCorrosion-inhibiting components in the film 65 against those caused by moisture, dust or chemical

bildnern C1 und C2. Dieses Ergebnis ist um so über- Dämpfe verursachte Korrosion geschützt werden sollen,form C 1 and C 2 . This result is the more corrosion caused by vapors is to be protected,

raschender, als nicht erwartet werden konnte, daß Die nachstehenden Beispiele dienen der weiterenmore surprising than could not have been expected that the following examples serve further

durch den Austausch der Kolloide, der antikorrosiven Erläuterung der Erfindung.by exchanging the colloids, the anti-corrosive explanation of the invention.

Beispiel IExample I.

30 bis 35 kg pulverisiertes Natriumalginat werden in 900 1 Wasser bei Raumtemperatur in Lösung gebracht. In der gebildeten kolloidalen Lösung werden anschließend 50 bis 100 kg eines Phosphates, Chromates, Nitrates, Borates oder Nitrits einer organischen Base, nämlich eines Amins, Polyamins, Aminoalkohols oder Polyaminoalkohols gelöst, und danach 2 bis 5 kg eines Alkylphenol-Äthylenoxid-Kondensationsprodukts. Man erhält eine korrosionsinhibierende kolloidale Lösung mittlerer Viskosität, die für die vorstehend genannten Verwendungszwecke geeignet ist. Die Lösung kann dabei durch Eintauchen des metallischen Gegenstandes oder durch Anstreichen oder Zerstäuben auf denselben aufgetragen werden. Für Anwendungszwecke, bei denen die Bildung von Schaum nachteilig ist, werden 0,1 bis 0,5 kg eines Silikons hinzugefügt.30 to 35 kg of powdered sodium alginate are dissolved in 900 l of water at room temperature. In the colloidal solution formed, 50 to 100 kg of a phosphate, chromate, Nitrates, borates or nitrites of an organic base, namely an amine, polyamine, amino alcohol or dissolved polyamino alcohol, and then 2 to 5 kg of an alkylphenol-ethylene oxide condensation product. A corrosion-inhibiting colloidal solution of medium viscosity is obtained which is suitable for is suitable for the purposes mentioned above. The solution can be immersed of the metallic object or by painting or spraying on the same. For uses where the formation of foam is disadvantageous, 0.1-0.5 kg of one Silicones added.

Beispiel IIExample II

Statt der im Beispiel I angeführten 30 bis 35 kg Alginat werden 2 bis 5 kg gereinigter pulverförmiger Guargummi verwendet. Es wird eine kolloidale Lösung erhalten, die insbesondere für bestimmte Schmierarbeiten in der Metallurgie, beispielsweise beim Biegen von Metallbändern oder bei der Herstellung geschweißter Röhren, geeignet ist.Instead of the 30 to 35 kg of alginate listed in Example I, 2 to 5 kg of purified powdery are used Uses guar gum. A colloidal solution is obtained, which is especially useful for certain lubrication jobs in metallurgy, for example in the bending of metal strips or in the manufacture of welded ones Tubes, is suitable.

X B e i s ρ i e 1 IIIX B e i s ρ i e 1 III

.ξ: In der im Beispiel I genannten Zusammensetzung wird das Alginat durch 20 bis 40 kg eines im kalten ^Zustand löslichen Stärkeabbauproduktes ersetzt, woibei man schrittweise und vorzugsweise bei 30 bis 40° C ^arbeitet. Die korrosionsinhibierende kolloidale Lösung kann auf Papier aufgebracht werden, das durch einfaches Aufkleben den metallischen Gegenstand zu schützen vermag..ξ: In the composition mentioned in Example I. the alginate is replaced by 20 to 40 kg of a starch degradation product that is soluble in the cold state, where one works stepwise and preferably at 30 to 40 ° C ^. The corrosion-inhibiting colloidal solution can be applied to paper by simply sticking the metallic object to it able to protect.

Bei spiel IVExample IV

In der im Beispiel I genannten ZusammensetzungIn the composition mentioned in Example I.

wird das Alginat durch 20 bis 60 kg von Carboxy-the alginate is replaced by 20 to 60 kg of carboxy

methylzellulose oder 30 bis 100 kg Gelantine ersetzt.methyl cellulose or 30 to 100 kg gelatin replaced.

Dieser Filmbildner führt zu Schutzüberzügen, die besonders fest am Metall anhaften.This film former leads to protective coatings that adhere particularly firmly to the metal.

B e i s ρ i e 1 VB e i s ρ i e 1 V

ίο In 800 1 Wasser einer Temperatur von 20 bis 300C werden 50 bis 100 kg trockenes Kaseinpulver eingebracht und vermischt. Das Gemisch wird einige Stunden gerührt. Anschließend löst man im gleichen Zeitraum 10 bis 20 kg trockenes Boraxpulver auf und erhitzt die Mischung auf 50 bis 60°C. In der so erhaltenen kolloidalen Lösung werden sodann 2 bis 5 kg eines Alkylphenol-Äthylenoxid-Kondensationsproduktes sowie 30 bis 80 kg eines Phosphates, Chromates, Nitrates, Borates oder Nitrits einer organischen Base, nämlich eines Amins, Polyamins, Aminoalkohole oder Polyaminoalkohols, in Lösung gebracht. Es wird eine sehr fest haftende und sehr wirksame korrosionsinhibierende Schutzschicht erhalten. Die Lösung kann auch als vor Korrosion schützender Leim verwendet werden.ίο In 800 l of water at a temperature of 20 to 30 0 C, 50 to 100 kg of dry casein powder are introduced and mixed. The mixture is stirred for a few hours. Then 10 to 20 kg of dry borax powder are dissolved in the same period and the mixture is heated to 50 to 60 ° C. In the colloidal solution obtained in this way, 2 to 5 kg of an alkylphenol-ethylene oxide condensation product and 30 to 80 kg of a phosphate, chromate, nitrate, borate or nitrite of an organic base, namely an amine, polyamine, amino alcohol or polyamino alcohol, are dissolved . A very firmly adhering and very effective corrosion-inhibiting protective layer is obtained. The solution can also be used as an anti-corrosive glue.

Beispiel VIExample VI

Zu den kolloidalen Lösungen nach den Beispielen I bis V wird 2 bis 20% Talk, Kaolin, Asbest, Kalziumcarbonat, Bleicarbonat oder Zinksulfid als feines Pulver hinzugefügt, wodurch wasserlösliche, korrosionsinhibierende Farben erhalten werden.2 to 20% talc, kaolin, asbestos, calcium carbonate, Lead carbonate or zinc sulfide added as a fine powder, creating water-soluble, corrosion-inhibiting Colors are preserved.

Beispiel VIIExample VII

Stahlbleche werden in eine kolloidale Lösung nach Beispiel I eingetaucht und anschließend abtropfen gelassen. Auf die so behandelte Metalloberfläche wird sodann eine wäßrige Natriumsilikat- oder Aluminiumsulfat-Lösung mittlerer Konzentration aufgesprüht.Steel sheets are immersed in a colloidal solution according to Example I and then allowed to drain. An aqueous sodium silicate or aluminum sulfate solution is then applied to the metal surface treated in this way Sprayed on with medium concentration.

Dadurch wird die Widerstandsfähigkeit gegen Beschädigung des Schutzbelages erhöht.This increases the resistance to damage to the protective covering.

Claims (6)

Patentansprüche:Patent claims: 1. Filmbildner für Schutzüberzüge auf Metallen aus wäßrigen Mischungen von Kolloiden, Korrosionsinhibitoren und Netzmitteln, gekennzeichnet durch einen Gehalt an1. Film former for protective coatings on metals from aqueous mixtures of colloids, corrosion inhibitors and wetting agents by a content of a) Natriumalginat, Gelatine, boraxmodifiziertem Kasein, Guargummi, Carboxymethylcellulose oder Stärkeabbauprodukten als Kolloid,a) Sodium alginate, gelatin, borax modified casein, guar gum, carboxymethyl cellulose or starch degradation products as colloid, b) wasserlöslichen antikorrosiven neutralen Salzen von Aminen, Polyaminen, Aminoalkoholen oder Polyaminoalkoholen mit Chrom-, Phosphor-, Salpeter-, Bor- oder salpetriger Säure als Korrosionsinhibitor undb) water-soluble anticorrosive neutral salts of amines, polyamines, amino alcohols or polyamino alcohols with chromium, phosphoric, nitric, boric or nitrous acid as a corrosion inhibitor and c) Alkylphenol-Äthylenoxid-Kondensationsprodukten als Netzmittel.c) alkylphenol-ethylene oxide condensation products as a wetting agent. 2. Filmbildner nach Anspruch 1, gekennzeichnet durch einen zusätzlichen Gehalt an Polyalkohol, Polyäthylenglykol und/oder Polyaminoalkohol.2. Film former according to claim 1, characterized by an additional content of polyalcohol, Polyethylene glycol and / or polyamino alcohol. 3. Filmbildner nach Anspruch 1 oder 2, gekennzeichnet durch einen zusätzlichen Gehalt an Mineralöl.3. Film former according to claim 1 or 2, characterized by an additional content of Mineral oil. 4. Filmbildner nach einem der Ansprüche 1 bis 3, gekennzeichnet durch einen zusätzlichen Gehalt an Antischaummittel.4. Film former according to one of claims 1 to 3, characterized by an additional content of Antifoam agents. 5. Filmbildner nach einem der Ansprüche 1 bis 4, gekennzeichnet durch einen zusätzlichen Gehalt an Antigärungsmittel.5. Film former according to one of claims 1 to 4, characterized by an additional content of Anti-fermentation agents. 6. Filmbildner nach einem der vorstehenden Ansprüche, gekennzeichnet durch einen zusätzlichen Gehalt an feinpulvrigen Pigmenten und/oder wasserunlöslichen Füllstoffen.6. Film former according to one of the preceding claims, characterized by an additional Content of finely powdered pigments and / or water-insoluble fillers. Auch gehört ein Verfahren zur Behandlung von Materialien, insbesondere Verpackungsmaterialien, zum Stand der Technik, bei welchem auf die Oberfläche solcher Materialien ein anorganisches Nitrit und ein Salz einer organischen Base sowie gegebenenfalls oberflächenaktive Stoffe oder Kolloide aufgebracht werden, wodurch die Materialien befähigt werden, Dämpfe abzugeben, welche die darin enthaltene Ware vor Rost schützen (DT-PS 8 14 725). Als Salze derAlso includes a method for treating materials, especially packaging materials, to the prior art, in which on the surface of such materials an inorganic nitrite and a salt of an organic base and optionally surface-active substances or colloids are applied as a result of which the materials are able to give off vapors which the goods they contain Protect against rust (DT-PS 8 14 725). As salts of the ίο organischen Basen werden dabei beispielsweise Phosphate, Nitrate, Borate oder Chromate verwendet. Das Auftragen entsprechender Gemische unmittelbar auf die Metalloberfläche wird jedoch nicht in Betracht gezogen.ίο organic bases are, for example, phosphates, Nitrates, borates or chromates are used. Applying the appropriate mixtures immediately however, the metal surface is not taken into account. Ferner ist bereits ein Überzugsmittel beschrieben worden, das aus einer Mischung von herkömmlichen Filmbildnern, wie Alginaten oder Polyvinylalkohol, einem Trockenöl, einem oberflächenaktiven Stoff, sowie gegebenenfalls einem Korrosionsschutzmittel besteht und das zum Schutz der Wände von Zerstäubungskammern dient, in denen Lacke oder Farben auf nicht wäßriger Basis verarbeitet werden (FR-PS 10 69 163). Dieses bekannte Überzugsmittel ist jedoch mechanisch leicht ablösbar und deshalb zum Schutz metallischer Gegenstände, die mechanischen Beanspruchungen unterworfen werden, nicht geeignet. Aufgabe der Erfindung ist es, einen Filmbildner der eingangs angegebenen Art zu schaffen, der sich durch eine verbesserte korrosionsinhibierende Wirkung auszeichnet, und zwar auch bei relativ geringen Gehalten an Korrosionsschutzinhibitoren, der gegen mechanische Beanspruchung widerstandsfähige Filme erzeugt und dessen Herstellung dadurch vereinfacht ist, daß die Gehalte der einzelnen Komponenten in verhältnismäßig weiten Grenzen schwanken können.Furthermore, a coating agent has already been described, which consists of a mixture of conventional Film formers, such as alginates or polyvinyl alcohol, a drying oil, a surface-active substance, and, if necessary, a corrosion protection agent and that to protect the walls of the atomization chambers in which varnishes or paints are processed on a non-aqueous basis (FR-PS 10 69 163). However, this known coating agent can easily be removed mechanically and is therefore used for protection metallic objects that are subjected to mechanical stress are not suitable. The object of the invention is to create a film former of the type specified at the outset, which is characterized by is characterized by an improved corrosion-inhibiting effect, even with relatively low contents of corrosion protection inhibitors that produce films that are resistant to mechanical stress and its production is simplified by the fact that the contents of the individual components are relatively can fluctuate within wide limits. Dies wird erfindungsgemäß dadurch erreicht, daß der Filmbildner einen Gehalt anThis is achieved according to the invention in that the film former contains
DE19621519023 1961-10-03 1962-10-02 Film former for protective coatings on metals Expired DE1519023C3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR874892A FR1359621A (en) 1961-10-03 1961-10-03 Water-soluble products for corrosion protection
FR874892 1961-10-03
DEB0069060 1962-10-02

Publications (3)

Publication Number Publication Date
DE1519023A1 DE1519023A1 (en) 1969-06-26
DE1519023B2 true DE1519023B2 (en) 1976-03-04
DE1519023C3 DE1519023C3 (en) 1976-10-14

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BE622778A (en)
FR1359621A (en) 1964-04-30

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