EP0073777A1 - Combined coating and preparation method thereof. - Google Patents

Combined coating and preparation method thereof.

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Publication number
EP0073777A1
EP0073777A1 EP82900623A EP82900623A EP0073777A1 EP 0073777 A1 EP0073777 A1 EP 0073777A1 EP 82900623 A EP82900623 A EP 82900623A EP 82900623 A EP82900623 A EP 82900623A EP 0073777 A1 EP0073777 A1 EP 0073777A1
Authority
EP
European Patent Office
Prior art keywords
coating
water
thinnable
layer
structural
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
EP82900623A
Other languages
German (de)
French (fr)
Other versions
EP0073777B1 (en
Inventor
Werner Linck
Franzjosef Strater
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resicoat Beschichtungspulver GmbH
Rhodius Lack & Farbwerke & Co KG GmbH
RESICOAT GmbH
Rhodius Lack & Farbwerke GmbH
Original Assignee
Resicoat Beschichtungspulver GmbH
Rhodius Lack & Farbwerke & Co KG GmbH
RESICOAT GmbH
Rhodius Lack & Farbwerke GmbH
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
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Application filed by Resicoat Beschichtungspulver GmbH, Rhodius Lack & Farbwerke & Co KG GmbH, RESICOAT GmbH, Rhodius Lack & Farbwerke GmbH filed Critical Resicoat Beschichtungspulver GmbH
Priority to AT82900623T priority Critical patent/ATE14848T1/en
Publication of EP0073777A1 publication Critical patent/EP0073777A1/en
Application granted granted Critical
Publication of EP0073777B1 publication Critical patent/EP0073777B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2451/00—Type of carrier, type of coating (Multilayers)

Definitions

  • the invention is based on a composite coating for substrates made of iron or non-ferrous metal according to the preamble of the main claim. It is known to apply a composite coating to a steel pipe, but firstly a synthetic resin which cures at the processing temperature with crosslinking is applied, this is hardened and then coated with an adhesive layer, before which the pipe is unvi.ckelt with an extruded synthetic stucco tape. Such a process, which is naturally quite cumbersome and, moreover, is only suitable for parts with a circular cross section, does not allow the achievement of a structured surface.
  • the composite coating according to the invention with the characterizing features of the main claim has the advantage that substrates of any shape can be coated with it without difficulty, the adhesion of the structural coating on the powder coating layer being surprisingly so good that the part provided with this composite coating even after a long weather test remain completely unchanged.
  • the powder coating layer primarily protects against corrosion, while the structural coating also takes on a mechanical protective function in addition to a decorative effect that may be desired, since the layer remains elastic and therefore absorbs shocks or other mechanical effects. If necessary, repairs can also be carried out very easily, since the structure coating not only adheres very well to the powder coating layer, but also to the structure coating that has already dried. Due to the consistency of the water-thinnable structure coating, which is honey-like and moreover thixetropic, the material can be applied in a thick layer and then structured accordingly using a profile roller.
  • the process according to the invention according to claim 8 has the advantage that the structural coating can be applied to the unpolished powder coating layer, which is in no way otherwise compromised, without the adhesion and long-term weathering tests giving poorer results than if the powder coating were previously roughened or otherwise pretreated vird. This is particularly the case in Distributors where good permanent corrosion protection is important and you do not want to run the risk that the powder coating skin may be destroyed by grinding and thus deteriorate the corrosion protection.
  • the structural coating in addition to the acrylic resin and organic pigments and optionally coarse-grained fillers, contains 0.01 to 0.5% by weight of alkali metal hydroxide and 1.0 to 5.0% by weight of an ester as an organic Contain solvents; a corresponding amount of alkali in conventional, server-thinnable coating materials usually already leads to a lack of water resistance.
  • Aikaiihydroxide is preferably 45% caustic soda, as an ester z.
  • FIG. 1 An embodiment of the invention is shown in the drawing and explained in more detail in the following description.
  • the figure shows a section through a substrate provided with the composite coating.
  • a steel sheet 1 is electrostatically coated in a known manner with a powder coating based on polyester resin in such a way that the thickness of the powder coating layer 2 is approximately 50 ⁇ m.
  • the powder coating layer is cured at about 200 ° C for a few minutes.
  • the water-thinnable structure coating 3 is applied, which consists of acrylic resin, organic color pigments, optionally coarse-grained fillers to produce a stronger structure and 0.01% by weight. 45 tigers of caustic soda and 1.2% by weight of dissobutyl ester and finally 0.2% by weight of a thixotropic additive based on cellulose.
  • the structure coating can be applied by rolling, spraying, rolling, filling or with a trowel.
  • a nozzle of approx. 4 mm at a pressure of 3 to 4 bar When applying by spraying, it is advantageous to use a nozzle of approx. 4 mm at a pressure of 3 to 4 bar.
  • the thickness of the layer is 2 to 2.5 mm.
  • the layer After application, the layer is then rolled over with a corresponding profile roller to achieve a coarse structure.
  • the application takes place at approx. 20 ° C.
  • the drying can also take place at this temperature, which takes about 24 hours. If necessary, drying can also take place at 50 to 170o C and then only takes 10 or 3 minutes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Abstract

Le revetement pour supports en fer ou non-ferreux se compose d'une premiere couche en laque pulverisee qui porte une deuxieme couche constituee d'un revetement que l'on peut diluer dans l'eau. Il n'est pas necessaire de rendre rugueuse la couche de laque ou de la traiter d'une autre maniere avant d'appliquer la seconde couche. Tandis que la couche de laque pulverisee doit assurer une protection parfaite contre la corrosion, la seconde couche a laquelle on peut donner une surface grossierement modelee grace a un rouleau profile, peut servir a des buts decoratifs ou avoir une fonction de protection mecanique. Le revetement obtenu resistant aux intemperies montre une bonne adherence aussi bien seul que sur le support.The coating for iron or non-ferrous substrates consists of a first layer of sprayed lacquer which carries a second layer consisting of a coating which can be diluted in water. It is not necessary to roughen the lacquer coat or otherwise treat it before applying the second coat. While the sprayed lacquer layer should provide perfect protection against corrosion, the second layer, which can be given a roughly patterned surface by a profiled roller, can serve decorative purposes or have a mechanical protective function. The weather-resistant coating obtained shows good adhesion both on its own and on the support.

Description

Verbundbeschichtung und Verfahren zur Herstellung derselben Composite coating and method of making the same
Stand der TechnikState of the art
Die Erfindung geht aus von eiser Verbundbeschichtung für Substrate aus Eisen- oder Nichteisenneύallen nach der Gattung des Eauptanspruchs. Es ist bekannt, auf einen Stahlrohr eine Verbundbeschichtung aufzubringen, indes zunächst ein bei Verarbeitungst emperatur unter Vernetzung härtendes Kunstharz aufgetragen vird, dieses gehärtet und anschließend mit einer Kleberschicht überzogen vird, vorauf das Rohr mit einem extrudierten Kunst st cffband schraubenlinienförmig unvi.ckelt vird. Ein solches Verfahren, das naturgemäß recht umständlich ist und sich darüber hinaus ausschließlich für Teile mit einem kreisrunden Querschnitt eignet, gestattet nicht die Erzielung einer strukturierten Oberfläche. Die Beschichtusg großer, ebenerThe invention is based on a composite coating for substrates made of iron or non-ferrous metal according to the preamble of the main claim. It is known to apply a composite coating to a steel pipe, but firstly a synthetic resin which cures at the processing temperature with crosslinking is applied, this is hardened and then coated with an adhesive layer, before which the pipe is unvi.ckelt with an extruded synthetic stucco tape. Such a process, which is naturally quite cumbersome and, moreover, is only suitable for parts with a circular cross section, does not allow the achievement of a structured surface. The coating of large, level
Flächen ist nach diesem Verfahren nicht möglich, ebenso lassen sich nach diesem Verfahren keine dekorativen BeSchichtungen herstellen. Vorteile der ErfindungSurfaces are not possible with this process, nor can decorative coatings be produced with this process. Advantages of the invention
Die erfindungsgemäße Verbundbeschichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß sich mit ihr Substrate jeder Form ohne Schwierigkeiten beschichten lassen, wobei die Eaftung der Strukturbeschichung auf der Pulverlackschicht Überraschenderveise so gut ist, daß die mit dieser Verbunebeschichtung versehenen Teil auch nach langen Witterungstest völlig unverändert bleiben. Dabei übernimm: die Pulveriackschicht vornehmlich den Korrosionsschutz, vährend die Strukturbeschichtung außer einem gegebenenfalls gewünschten Dekorationseffekt auch eine mechanische Schutzfunktion übernimmt, da die Schicht elastisch bleibt und daher Stöße oder sonstige mechanische Einwirkungen abfängt. Auch lassen sich, falls notwendig, Reparaturen sehr leicht ausführen, da die Strukturbeschichtung nicht nur auf der Pulverlackschicht sehr gut haftet, sondern auch auf der bereits getrockneten Strukturbeschichtung. Durch die Konsistenz der wasserverdünnbaren Strukturbeschichtung, die honigartig und darüber hinaus thixetrop ist, läßt sich das Material in dicker Schicht auftragen und anschließend auch noch durch eine Profilrolle entsprechend strukturieren.The composite coating according to the invention with the characterizing features of the main claim has the advantage that substrates of any shape can be coated with it without difficulty, the adhesion of the structural coating on the powder coating layer being surprisingly so good that the part provided with this composite coating even after a long weather test remain completely unchanged. Take over: the powder coating layer primarily protects against corrosion, while the structural coating also takes on a mechanical protective function in addition to a decorative effect that may be desired, since the layer remains elastic and therefore absorbs shocks or other mechanical effects. If necessary, repairs can also be carried out very easily, since the structure coating not only adheres very well to the powder coating layer, but also to the structure coating that has already dried. Due to the consistency of the water-thinnable structure coating, which is honey-like and moreover thixetropic, the material can be applied in a thick layer and then structured accordingly using a profile roller.
Das erfindungsgemäße Verfahren nach Anspruch 8 hat den Vorteil, daß die Strukturbeschichtung auf die ungeschliffene und auch sonst in keiner Weise verbehancelte PulverlackSchicht aufgebracht verden kann, ohne daß die Eaftungsund Langzeitbevitterungstests schlechtere Ergebnisse bringen vürden, als wenn die Puiverlacks chicht zuvor aufgerauht oder auf andere Weise vorbehandelt vird. Dies ist besonders dort von Verteil, wo es auf einen guten bleibenden Korrosionsschutz ankommt und man daher nicht das Risiko eingehen will, daß man durch Schleifen gegebenenfalls die Pulverlack-Haut zerstört und damit den Korrosionsschutz verschlechtert.The process according to the invention according to claim 8 has the advantage that the structural coating can be applied to the unpolished powder coating layer, which is in no way otherwise compromised, without the adhesion and long-term weathering tests giving poorer results than if the powder coating were previously roughened or otherwise pretreated vird. This is particularly the case in Distributors where good permanent corrosion protection is important and you do not want to run the risk that the powder coating skin may be destroyed by grinding and thus deteriorate the corrosion protection.
Gerade dieser Effekt ist überrascherd da die raenvelt sonst der Memung ist, daß eine üblicherweise als endgültige Oberfläche dienende lackschicht nicht ohne entstrechende Vor behandlung einen Untergrund für eine weitere haftfeste Beschichtung darstellen kann.It is precisely this effect that is surprising, since otherwise the fact is that a lacquer layer that usually serves as the final surface is not without a corresponding advance treatment can form a base for a further adhesive coating.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Verbundbeschichtung und des im Anspruch 5 angegebenen Verfahrens möglich. Um die optimalen Haftungswerte zu erzielen, ist es besonders vorteilhaft, wenn die Strukturbeschichtung neben dem Acrylharz sowie organischen Pigmenten und gegebenenfalls grobkörnigen Füllstoffen 0,01 bis 0,5 Gew.-% Alkalihydroxid sowie 1,0 bis 5,0 Gewichtsprozent eines Esters als organisches Lösungsmittel enthalten; eine entsprechende Menge Alkali in herkömmlichen was serverdünnbaren Beschichtungsstoffen führt in der Regel bereits zu einer mangelnden Wasserfestigkeit Als Aikaiihydroxid wird bevorzugt 45 %-iges Ätznatron, als Ester z. B. Diisobutylester eingesetzt.The measures listed in the subclaims permit advantageous developments and improvements of the composite coating specified in the main claim and of the method specified in claim 5. In order to achieve the optimum adhesion values, it is particularly advantageous if the structural coating, in addition to the acrylic resin and organic pigments and optionally coarse-grained fillers, contains 0.01 to 0.5% by weight of alkali metal hydroxide and 1.0 to 5.0% by weight of an ester as an organic Contain solvents; a corresponding amount of alkali in conventional, server-thinnable coating materials usually already leads to a lack of water resistance. Aikaiihydroxide is preferably 45% caustic soda, as an ester z. B. diisobutyl ester used.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Figur zeigt einen Schnitt durch ein mit der Verbundbeschichtung versehenes Substrat.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. The figure shows a section through a substrate provided with the composite coating.
Beschreibung des AusführungsbeispielesDescription of the embodiment
Ein Stahlblech 1 wird nach der üblichen Vorbehandlung in bekannter Weise elektrostatisch mit einem Pulverlack auf Polyesterharzbasis beschichtet derart, daß sich eine Dicke der Pulverlackschicht 2 von ca. 50 μm ergibt. Die Pulverlackschicht wird einige Minuten bei etwa 200º C gehärtet. Nach dem Abkühlen wird die wasserverdünnb are Strukturbeschichtung 3 aufgebracht, die aus Acrylharz, organischen Farbpigmenten, gegebenenfalls grobkörnigen Füllstoffen zurErzeugung einer stärkeren Strukturierung sowie 0,01 Gew.-% 45 tigern Ätznatron und 1,2 Gew.-% Dissobutylester und schließlich 0,2 Gew.-% eines Thixotropierungszusat zes auf Cellulosebasis besteht. Das Aufbringen der Strukturbeschichtung kann durch Rollen, Spritzen, Walzen, Spachteln oder mit einer Kelle erfolgen. Beim Auftrag durch Spritzen verwendet man vorteilhaft eine Düse von ca. 4 mm bei einem Druck von 3 bis 4 bar. Die Dicke, der Schicht liegt bei 2 bis 2,5 mm. Nach den Aufbringen wird die Schicht dann zur Irzielung einer Grobstruktur mit einer entsprechenden Profilrolle überrollt. Der Auftrag erfolgt bei ca. 20° C. Die Trocknung kann ebenfalls bei dieser Temperatur erfolgen, wozu etwa 24 Stunden notwendig sind. Im Bedarfsfalle kann die Trocknung aber auch bei 50 bis 170º C erfolgen und dauert dann nur 10 bzw. 3 Minuten. After the usual pretreatment, a steel sheet 1 is electrostatically coated in a known manner with a powder coating based on polyester resin in such a way that the thickness of the powder coating layer 2 is approximately 50 μm. The powder coating layer is cured at about 200 ° C for a few minutes. After cooling, the water-thinnable structure coating 3 is applied, which consists of acrylic resin, organic color pigments, optionally coarse-grained fillers to produce a stronger structure and 0.01% by weight. 45 tigers of caustic soda and 1.2% by weight of dissobutyl ester and finally 0.2% by weight of a thixotropic additive based on cellulose. The structure coating can be applied by rolling, spraying, rolling, filling or with a trowel. When applying by spraying, it is advantageous to use a nozzle of approx. 4 mm at a pressure of 3 to 4 bar. The thickness of the layer is 2 to 2.5 mm. After application, the layer is then rolled over with a corresponding profile roller to achieve a coarse structure. The application takes place at approx. 20 ° C. The drying can also take place at this temperature, which takes about 24 hours. If necessary, drying can also take place at 50 to 170º C and then only takes 10 or 3 minutes.

Claims

Ansnrüche Claims
1. Verbundbeschichtung für Substrate aus Eisen- oder Nichteisenmetallen, gekennzeichnet durch eine erste Schicht aus einem Pulverlack, die eine zweite Schicht aus einer wasserdünnbaren Strukturbeschichtung trägt.1. Composite coating for substrates made of ferrous or non-ferrous metals, characterized by a first layer of a powder coating, which carries a second layer of a water-thinnable structural coating.
2. Verbundbeschichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Pulverlack auf Epoxidharz- und/oder Acrylharz- und/oder Polyesterharzbasis und die wasserverdünnbare Strukturbeschichtung auf Acrylharzbasis aufgebaut ist.2. Composite coating according to claim 1, characterized in that the powder coating is based on epoxy resin and / or acrylic resin and / or polyester resin and the water-thinnable structural coating is based on acrylic resin.
3. Verbundbeschichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die was sεrverdünnbare Strukturbeschichtung neben dem Acrylharz sowie organischen Farbpigmεnt en und gegebenenfalls grobkörnigen Füllstoffen 0,01 bis D,5 Gew.-% Alkalihydroxid sowie 1,0 bis 5,0 Gew.-% eines Esters als organisches Lösungsmittel enthält. 3. Composite coating according to claim 1 or 2, characterized in that what was sεrverdünnbaren structural coating in addition to the acrylic resin and organic Farbpigmεnt en and optionally coarse-grained fillers 0.01 to D, 5 wt .-% alkali hydroxide and 1.0 to 5.0 wt. -% of an ester as an organic solvent.
4. Verbundbeschichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Pulverlackschicht eine Dicke von 10 bis 500 μm und die wasserverdünnbare Strukturbeschichtung eine Dicke von 1 bis 20 mm aufweist.4. Composite coating according to one of claims 1 to 3, characterized in that the powder coating layer has a thickness of 10 to 500 microns and the water-dilutable structural coating has a thickness of 1 to 20 mm.
5. Verfahren zur Herstellung einer Verbundbeschichtung auf einem Substrat aus Eisen- oder Nichteisenmetallen, dadurch gekennzeichnet, daß nach Vorbehandlung des Substrates auf dieses eine Pulverlackschicht und darauf eine wasserverdünnbare Strukturbeschichtung aufgebracht wird.5. A method for producing a composite coating on a substrate made of ferrous or non-ferrous metals, characterized in that after pretreatment of the substrate, a powder coating layer and a water-thinnable structural coating is applied thereon.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Pulverlackschicht vor dem Aufbringen der' wasserverdünnbaren Strukturbeschichtung ausgehärtet wird.6. The method according to claim 5, characterized in that the powder coating layer is cured before the application of the 'water-thinnable structural coating.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die wasserverdünnbare Strukturbeschichtung auf die von der Aushärtung her noch heiße Puiverlackschicht aufgebracht wird.7. The method according to claim 6, characterized in that the water-thinnable structural coating is applied to the still hot Puiverlackschicht from curing.
8, Verfahren nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die was s erverdünnbare Strukturbes chi chtung auf die ungeschliffene und unvorbehandelte Pulverlackschicht aufgebracht wird. 8, Method according to claim 6 or 7, characterized in that the water-thinnable structure coating is applied to the unsanded and untreated powder coating layer.
9. Verfahren nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Pulverlackschicht vor dem Aufbringen der was serverdünnbaren Strukturbeschichtung geschliffen und/oder anderweitig vorbehandeit wird.9. The method according to claim 6 or 7, characterized in that the powder coating layer is sanded and / or otherwise pretreated prior to the application of what server-thin structure coating.
10. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die wasserverdünnbare Strukturbeschichtung auf die unausgenartete, lediglich angelierte Pulverlackschicht aufgebracht und beide Schicht en danm zusammen getrocknet bzw. gehärtet werden.10. The method according to claim 5, characterized in that the water-thinnable structural coating is applied to the unprepared, only gelled powder coating layer and both layers are then dried or hardened together.
11. Verfahren nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, daß die Pulverlackschicht durch elektrostatisches Pulversprühen, durch Wirbelsint ern Flammspritzen oder durch Aufstreuen aufgebracht wird, während die wasserverdünnbare Strukturbeschichtung durch Rollen, Spritzen, Walzen, Spachteln oder mittels einer Kelle aufgebracht wird.11. The method according to any one of claims 5 to 10, characterized in that the powder coating layer is applied by electrostatic powder spraying, by Wirbelsint NEN flame spraying or by sprinkling, while the water-thinnable structural coating is applied by rolling, spraying, rolling, filling or using a trowel.
12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß die wasserverdünnbare Strukturbeschi itung nach dem Aufbringen zur Erzeugung einer Grobstruktur einer Profilrolle überrollt wird. 12. The method according to claim 11, characterized in that the water-dilutable structure coating is rolled over after application to produce a coarse structure of a profile roll.
13. Verfahren nach einem der Ansprüche 5 bis 12, dadurch gekennzeichnet, daß die wasserverdünnbare Strukturbeschichtung 10 bis 3 Minuten bei 50 bis 170º C getrocknet wird.13. The method according to any one of claims 5 to 12, characterized in that the water-thinnable structural coating is dried at 50 to 170 ° C for 10 to 3 minutes.
14. Verwendung eines Pulverlacks auf Epoxidharz- und/ oder Acrylharz- und/oder Polyesterharzbasis als Untergrund zum Aufbringen einer wasserverdünnbaren Strukturbeschichtung auf Acrylharzbasis für die Herstellung einer Verbundbeschichtung auf Substraten aus Eisenoder Nichteisenmetallen. 14. Use of a powder coating based on epoxy resin and / or acrylic resin and / or polyester resin as a base for applying a water-thinnable structural coating based on acrylic resin for the production of a composite coating on substrates made of iron or non-ferrous metals.
EP82900623A 1981-03-13 1982-02-12 Combined coating and preparation method thereof Expired EP0073777B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82900623T ATE14848T1 (en) 1981-03-13 1982-02-12 COMPOSITE COATING AND METHOD OF MAKING THE SAME.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813109713 DE3109713A1 (en) 1981-03-13 1981-03-13 COMPOSITE COATING AND METHOD FOR PRODUCING THE SAME
DE3109713 1981-03-13

Publications (2)

Publication Number Publication Date
EP0073777A1 true EP0073777A1 (en) 1983-03-16
EP0073777B1 EP0073777B1 (en) 1985-08-14

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Family Applications (1)

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EP82900623A Expired EP0073777B1 (en) 1981-03-13 1982-02-12 Combined coating and preparation method thereof

Country Status (5)

Country Link
EP (1) EP0073777B1 (en)
JP (1) JPS58500314A (en)
DE (2) DE3109713A1 (en)
IT (1) IT1150231B (en)
WO (1) WO1982003190A1 (en)

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DE4111544A1 (en) * 1991-04-09 1992-10-15 Worm Hans Gmbh Co Kg BALL GUIDE

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AT369772B (en) * 1979-02-23 1983-01-25 Voest Alpine Ag APPLICATION OF COATINGS FROM THERMOPLASTIC PLASTICS ON METALLIC ITEMS, IN PARTICULAR TUBES
DE2928323A1 (en) * 1979-07-13 1981-01-29 Rethan Ag Coating of aluminium panels with facing plaster - first covering with chromate or paint providing good adhesion for the plaster

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8203190A1 *

Also Published As

Publication number Publication date
WO1982003190A1 (en) 1982-09-30
DE3265329D1 (en) 1985-09-19
DE3109713A1 (en) 1982-10-21
JPS58500314A (en) 1983-03-03
IT1150231B (en) 1986-12-10
IT8219934A0 (en) 1982-03-03
EP0073777B1 (en) 1985-08-14

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