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WO2004056561A1 - Method for coating a component for painting made from fibre-reinforced plastic - Google Patents

Method for coating a component for painting made from fibre-reinforced plastic Download PDF

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Publication number
WO2004056561A1
WO2004056561A1 PCT/EP2003/012570 EP0312570W WO2004056561A1 WO 2004056561 A1 WO2004056561 A1 WO 2004056561A1 EP 0312570 W EP0312570 W EP 0312570W WO 2004056561 A1 WO2004056561 A1 WO 2004056561A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
polymer
prepolymer
coating
reinforced plastic
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.)
Ceased
Application number
PCT/EP2003/012570
Other languages
German (de)
French (fr)
Inventor
Andreas Hermann
Karl-Heinz Ilzhöfer
Thomas Schuh
Thorsten Wesse
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to EP03775337A priority Critical patent/EP1575770A1/en
Publication of WO2004056561A1 publication Critical patent/WO2004056561A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • B05D3/002—Pretreatement
    • B05D3/005—Pretreatment for allowing a non-conductive substrate to be electrostatically coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • B05D1/265—Extrusion coatings
    • 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
    • B05D3/02—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 baking
    • B05D3/0254—After-treatment
    • 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
    • B05D3/06—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 exposure to radiation
    • B05D3/061—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 exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating

Definitions

  • the invention relates to a method for coating components made of fiber-reinforced plastic, which are still being painted.
  • a problem that arises in relation to the high visual appearance demanded today in automobile construction is the surface quality of components made of fiber-reinforced plastic. Due to the fibers in the plastic, fiber marks, pores and other imperfections can appear on the component surface, which are also visible after the coating has been applied. These defects occur in particular where the components are produced by the pressing process and the burrs that arise on the component must be removed mechanically by grinding or the like.
  • the object of the present invention is to develop a method with which defects in components made of fiber-reinforced plastic can be eliminated without impairing subsequent painting.
  • the pores and other imperfections on the surface of the component are compensated or covered with the polymer.
  • the two-stage crosslinking and curing process offers the possibility of first fixing the polymer by first crosslinking and then carrying out the final curing in a separate step, which can be combined with another processing step to save time. Because of the crosslinking, the polymer does not yet have the hardness necessary for operation, but it is arranged in a stationary manner on the component. The polymer has sufficient strength so that gases emitting from the substrate do not form bubbles, stoves or the like. to lead. At the same time, the surface of the component is protected from damage until the final painting.
  • the final curing of the optionally electrically conductive polymer advantageously takes place during the electrostatic painting, so that the
  • Total production time can be reduced.
  • the curing takes place through the temperature during the painting. Electrically conductive substances contained in the polymer enable electrostatic painting of plastics that are not electrically conductive per se.
  • the final crosslinking of the polymer takes place in a cathodic dip coating carried out before the electrostatic coating, which is becoming more and more popular for reasons of cost and environmental protection in automobile construction.
  • the prepolymer is first processed into a semi-finished film which can be produced in large quantities, stored and, if necessary, applied to a component.
  • the polymer can also be added directly to the component to be coated, whereby a process step can be saved.
  • Polymer mixtures based on polyurethane, polyester or polyacrylic have proven to be particularly suitable.
  • the polymer mass is extruded and either applied directly to the plastic component to be coated or first processed into a film in the form of a flat semifinished product, which is then applied to the component in a further step.
  • the polymer is crosslinked during or after extrusion.
  • the production of a cross-linked film has the advantage of being able to be stored directly over the component, but it also requires a further processing step.
  • the energy input for the crosslinking takes place in such a way that heating, which could lead to the formation of bubbles which could impair the later appearance, is avoided.
  • Irradiation with electromagnetic waves for example in the form of UV light, has proven to be particularly favorable, the polymer, of course, also being able to be briefly heated.
  • a cross-linked film made of a prepolymer is applied to a plastic component, it adheres to it due to adhesive forces. A firmer connection between the polymer and the plastic component can be formed during curing.
  • any edges that may be present are also covered with the polymer layer. In this way, further edge protection is not necessary.
  • the polymer In order to paint the polymer layer located on the surface of the coated 'plastic component in the same way as the other parts of the vehicle, the polymer can be added prior to the extruding electrically conductive substances such as carbon black or aluminum particles. This definitely gives you the option of coating the polymer layer with an electrostatic coating.
  • This electrostatic coating can also be a cathodic dip coating, the curing of the polymer before the coating process can be carried out, for example, by UV radiation or also during the dip coating. The provision of an additional primer layer for preparing the paint is unnecessary with the method according to the invention.
  • an electrically conductive polymer per se can also be used.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention relates to a method for coating a component for painting, made from fibre-reinforced plastic, with a polymer, whereby electrically-conducting substances are added to a prepolymer which is extruded and applied to the substrate. The prepolymer undergoes initial cross-linking in a first step and is hardened in a second step by treatment with heat radiation and/or electromagnetic radiation.

Description

VERFAHREN ZUR BESCHICHTUNG ZU LACKIERENDER BAUTEILE AUS FASERVERSTÄRKTEM KUNSTSTOFFMETHOD FOR COATING COMPONENTS TO BE PAINTED FROM FIBER REINFORCED PLASTIC

Die Erfindung betrifft ein Verfahren zur Beschichtung von Bauteilen aus faserverstärktem Kunststoff, die noch lackiert werden.The invention relates to a method for coating components made of fiber-reinforced plastic, which are still being painted.

Solche Bauteile treten in immer größerem Umfang beispielsweise im Automobilbau auf, da faserverstärkte Kunststoffteile leicht formbar sind und vor allem ein im Vergleich mit Materialien ähnlicher Stabilität geringes Gewicht aufweisen.Components of this type are becoming increasingly common, for example in automobile construction, since fiber-reinforced plastic parts are easy to form and, above all, have a low weight in comparison with materials of similar stability.

Ein dabei auftretendes Problem ist in bezug auf die heute geforderte hohe optische Wertanmutung im Automobilbau, die Oberflächenbeschaffenheit von Bauteilen aus faserverstärktem Kunststoff. Aufgrund der im Kunststoff befindlichen Fasern können an der Bauteiloberfläche Faserabzeichnungen, Poren und andere Fehlstellen auftreten, die auch nach der Auftragung des Lacks sichtbar sind. Diese Fehlstellen treten insbesondere auch dort auf, wo die Bauteile im Pressverfahren hergestellt werden und dabei entstehende Grate an dem Bauteil mechanisch durch Schleifen oder ähnliches entfernt werden müssen.A problem that arises in relation to the high visual appearance demanded today in automobile construction is the surface quality of components made of fiber-reinforced plastic. Due to the fibers in the plastic, fiber marks, pores and other imperfections can appear on the component surface, which are also visible after the coating has been applied. These defects occur in particular where the components are produced by the pressing process and the burrs that arise on the component must be removed mechanically by grinding or the like.

Zur Beseitigung dieser Fehlstellen ist ein erheblicher Zusatzaufwand in Form von Schleifen der Oberfläche und/oder Mehrfachlackierungen notwendig.A considerable additional effort in the form of sanding the surface and / or multiple lacquering is necessary to eliminate these defects.

Die DE 19628966 Cl zeigt ein Verfahren zum Applizieren einer Lackfolie auf dreidimensional gewölbten Flächen. Eine Lackierung dieser Folie im Verlaufe des normalen Lackierprozesses ist allerdings problematisch, da die Gewährleistung einer durchgehend gleichen Optik nur schwer zu realisieren ist. Daher wird in dem Verfahren nach der angeführten Druckschrift eine bereits fertig lackierte Folie auf das Bauteil appliziert.DE 19628966 C1 shows a method for applying a lacquer film on three-dimensionally curved surfaces. A Painting this film in the course of the normal painting process is problematic, however, since it is difficult to guarantee the same appearance throughout. Therefore, in the process according to the cited document, a film that has already been coated is applied to the component.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu entwickeln, mit dem Fehlstellen an Bauteilen aus faserverstärktem Kunststoff ohne Beeinträchtigung einer nachfolgenden Lackierung beseitigt werden können.The object of the present invention is to develop a method with which defects in components made of fiber-reinforced plastic can be eliminated without impairing subsequent painting.

Zur Lösung dieser Aufgabe wird ein Verfahren mit den Merkmalen des Patentanspruchs 1 vorgeschlagen.To achieve this object, a method with the features of claim 1 is proposed.

Mit dem Polymer werden die Poren und anderen Fehlstellen der Oberfläche des Bauteils ausgeglichen bzw. abgedeckt. Der zweistufige Vernetzungs- und Aushärtungsprozess bietet die Möglichkeit, das Polymer erst durch eine erste Vernetzung zu fixieren und dann die endgültige Aushärtung in einem separaten Schritt durchzuführen, der zeitsparend mit einem weiteren Verarbeitungsschritt verbunden werden kann. Durch die Vernetzung weist das Polymer dann zwar noch nicht die für den Betrieb notwendige Härte auf, ist aber an dem Bauteil ortsfest angeordnet. Das Polymer weist eine hinreichende Festigkeit auf, so dass aus dem Substrat emittierende Gase nicht zu Blasen, Kochern o.a. führen. Gleichzeitig ist die Oberfläche des Bauteils bis zur endgültigen Lackierung vor Beschädigungen geschützt.The pores and other imperfections on the surface of the component are compensated or covered with the polymer. The two-stage crosslinking and curing process offers the possibility of first fixing the polymer by first crosslinking and then carrying out the final curing in a separate step, which can be combined with another processing step to save time. Because of the crosslinking, the polymer does not yet have the hardness necessary for operation, but it is arranged in a stationary manner on the component. The polymer has sufficient strength so that gases emitting from the substrate do not form bubbles, stoves or the like. to lead. At the same time, the surface of the component is protected from damage until the final painting.

Mit Vorteil erfolgt die endgültige Aushärtung des gegebenenfalls elektrisch leitenden Polymers während der elektrostatischen Lackierung, so dass dieThe final curing of the optionally electrically conductive polymer advantageously takes place during the electrostatic painting, so that the

Gesamtproduktionszeit reduziert werden kann. Die Aushärtung erfolgt dabei durch die Temperatur während der Lackierung. Im Polymer enthaltene, elektrisch leitende Substanzen ermöglichen eine elektrostatische Lackierung an sich elektrisch nicht leitfähiger Kunststoffe.Total production time can be reduced. The curing takes place through the temperature during the painting. Electrically conductive substances contained in the polymer enable electrostatic painting of plastics that are not electrically conductive per se.

In einer günstigen Ausbildungsform des Verfahrens erfolgt in einer vor der elektrostatischen Lackierung durchgeführten kathodischen Tauchlackierung, die sich aus Kostengründen wie auch aus Gründen des Umweltschutzes im Automobilbau in immer stärkerem Maße durchsetzt, die endgültige Vernetzung des Polymers .In a favorable embodiment of the method, the final crosslinking of the polymer takes place in a cathodic dip coating carried out before the electrostatic coating, which is becoming more and more popular for reasons of cost and environmental protection in automobile construction.

Gemäß einer Weiterbildung des Verfahrens wird das Prepolymer erst zu einem Folienhalbzeug verarbeitet, das in großer Menge hergestellt, gelagert und im Bedarfsfall auf ein Bauteil aufgebracht werden kann.According to a further development of the method, the prepolymer is first processed into a semi-finished film which can be produced in large quantities, stored and, if necessary, applied to a component.

In einem alternativen Verfahrensschritt kann das Polymer auch direkt auf das zu beschichtende Bauteil gegeben werden, wodurch ein Verfahrensschritt eingespart werden kann.In an alternative process step, the polymer can also be added directly to the component to be coated, whereby a process step can be saved.

Mit dem Überdecken der Kanten des zu beschichtenden Bauteils durch das Polymer kann in vorteilhafter Weise auf weitere Maßnahmen zur Sicherstellung eines Kantenschutzes verzichtet werden.By covering the edges of the component to be coated with the polymer, further measures for ensuring edge protection can advantageously be dispensed with.

Weiter ist es sinnvoll, die Vernetzung des Prepolymers mittels elektromagnetischer Wellen und damit kalt durchzuführen, um gerade im Hinblick auf eine möglichst makellose Oberfläche die Bildung von Blasen beim Vernetzen zu verhindern.Furthermore, it makes sense to carry out the crosslinking of the prepolymer by means of electromagnetic waves, and thus cold, in order to prevent the formation of bubbles during crosslinking, particularly with regard to a surface that is as flawless as possible.

Weitere Vorteile und Merkmale der Erfindung können der nachfolgenden Beschreibung des Verfahrens sowie den einzelnen Patentansprüchen entnommen werden. Im Automobilbau besteht bei der Verwendung von faserverstärkten Kunststoffbauteilen in sichtbaren Bereichen das Problem, dass an der Oberfläche der Bauteile Fehlstellen und Poren durch an die Oberfläche tretende Faserenden der Glasfaserstärkung auftreten. Um weitere mechanische Nachbehandlungen dieser Oberflächen unnötig zu machen, werden diese mit einer KunststoffSchicht überdeckt.Further advantages and features of the invention can be found in the following description of the method and in the individual patent claims. In automobile construction, when using fiber-reinforced plastic components in visible areas, there is the problem that defects and pores occur on the surface of the components due to fiber ends of the glass fiber reinforcement emerging on the surface. In order to make further mechanical post-treatment of these surfaces unnecessary, they are covered with a plastic layer.

Als besonders geeignet haben sich dabei Polymermischungen auf Basis von Polyurethan, Polyester oder Polyacryl herausgestellt .Polymer mixtures based on polyurethane, polyester or polyacrylic have proven to be particularly suitable.

Die Polymermasse wird extrudiert und entweder direkt auf das zu beschichtende Kunststoffbauteil aufgebracht oder zuerst zu einer Folie in Form eines flächigen Halbzeugs verarbeitet, die dann in einem weiteren Schritt auf das Bauteil aufgebracht wird.The polymer mass is extruded and either applied directly to the plastic component to be coated or first processed into a film in the form of a flat semifinished product, which is then applied to the component in a further step.

Bei beiden Verfahren erfolgt die Vernetzung des Polymers während oder nach dem Extrudieren. Das Herstellen einer vernetzten Folie hat gegenüber dem direkten Aufbringen auf das Bauteil den Vorteil der Lagerfähigkeit, macht aber auch einen weiteren Verarbeitungsschritt notwendig.In both processes, the polymer is crosslinked during or after extrusion. The production of a cross-linked film has the advantage of being able to be stored directly over the component, but it also requires a further processing step.

Der Energieeintrag zur Vernetzung erfolgt so, dass eine Erwärmung, die zu einer die spätere Optik beeinträchtigenden Blasenbildung führen könnte, vermieden wird. Eine Bestrahlung mit elektromagnetischen Wellen, beispielsweise in Form von UV-Licht hat sich dabei als besonders günstig herausgestellt, wobei das Polymer natürlich auch einer kurzzeitigen Erwärmung unterzogen werden kann.The energy input for the crosslinking takes place in such a way that heating, which could lead to the formation of bubbles which could impair the later appearance, is avoided. Irradiation with electromagnetic waves, for example in the form of UV light, has proven to be particularly favorable, the polymer, of course, also being able to be briefly heated.

Wird eine vernetzte Folie aus einem Prepolymer auf ein Kunststoffbauteil aufgebracht, haftet diese aufgrund von Adhäsionskräften an diesem. Eine festere Verbindung zwischen dem Polymer und dem Kunststoffbauteil kann beim Aushärten gebildet werden.If a cross-linked film made of a prepolymer is applied to a plastic component, it adheres to it due to adhesive forces. A firmer connection between the polymer and the plastic component can be formed during curing.

Sowohl mittels einer zuerst als Halbzeug hergestellten Folie als auch bei einem direkt auf das Kunststoffbauteil extrudierten Polymer werden auch gegebenenfalls vorhandene Kanten mit der Polymerschicht überdeckt. Auf diese Weise ist ein weiterer Kantenschutz nicht notwendig.Both by means of a film first produced as a semi-finished product and in the case of a polymer extruded directly onto the plastic component, any edges that may be present are also covered with the polymer layer. In this way, further edge protection is not necessary.

Um die auf der Oberfläche des beschichteten' Kunststoffbauteils befindliche Polymerschicht in gleicher Weise wie die anderen Teile des Fahrzeugs lackieren zu können, können dem Polymer bereits vor dem Extrudieren elektrisch leitfähige Substanzen wie Ruß oder Aluminiumpartikel zugesetzt werden. Damit ist auf jeden Fall die Möglichkeit gegeben, die Polymerschicht mit einer elektrostatischen Lackierung zu beschichten. Diese elektrostatische Lackierung kann auch eine kathodische Tauchlackierung sein, wobei die Aushärtung des Polymers vor dem Lackiervorgang beispielsweise durch UV-Strahlung oder auch während der Tauchlackierung erfolgen kann. Das Vorsehen einer zusätzlichen Primerschicht zur Vorbereitung der Lackierung ist mit dem erfindungsgemäßen Verfahren entbehrlich.In order to paint the polymer layer located on the surface of the coated 'plastic component in the same way as the other parts of the vehicle, the polymer can be added prior to the extruding electrically conductive substances such as carbon black or aluminum particles. This definitely gives you the option of coating the polymer layer with an electrostatic coating. This electrostatic coating can also be a cathodic dip coating, the curing of the polymer before the coating process can be carried out, for example, by UV radiation or also during the dip coating. The provision of an additional primer layer for preparing the paint is unnecessary with the method according to the invention.

Statt dem Zusatz elektrisch leitender Partikel zu dem Polymer kann auch ein an sich elektrisch leitfähiges Polymer eingesetzt werden. Instead of adding electrically conductive particles to the polymer, an electrically conductive polymer per se can also be used.

Claims

Patentansprüche claims 1. Verfahren zur Beschichtung eines zu lackierenden Bauteils aus faserverstärktem Kunststoff mit einem Polymer, bei dem ein Prepolymer mit elektrisch leitenden Substanzen versetzt, extrudiert und auf das Substrat aufgebracht wird, wobei das Prepolymer in einem ersten Schritt vorvernetzt und in einem zweiten Schritt durch Beaufschlagung mit Wärmestrahlung und/oder elektromagnetischer Strahlung ausgehärtet wird.1. A method for coating a component to be painted from fiber-reinforced plastic with a polymer in which a prepolymer is mixed with electrically conductive substances, extruded and applied to the substrate, the prepolymer being pre-crosslinked in a first step and in a second step by being acted upon Heat radiation and / or electromagnetic radiation is cured. 2. Verfahren nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t, dass die Aushärtung bei einer nachfolgenden elektrostatischen Lackierung erfolgt, bei der auch die Beschichtung aus dem Polymer lackiert wird.2. The method of claim 1, d a d u r c h g e k e n e z e i c h n e t that the curing takes place in a subsequent electrostatic painting, in which the coating is also painted from the polymer. 3. Verfahren nach Anspruch 1 oder 2 , d a d u r c h g e k e n n z e i c h n e t, dass die elektrostatische Lackierung eine kathodische Tauchlackierung ist.3. The method according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t that the electrostatic painting is a cathodic dip painting. 4. Verfahren nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, dass das Prepolymer zuerst als lagerfähiges Folienhalbzeug extrudiert wird, das in einem weiteren Schritt auf das Bauteil aufgebracht wird. 4. The method according to any one of claims 1 to 3, characterized in that the prepolymer is first extruded as a storable semi-finished film, which is applied to the component in a further step. 5. Verfahren nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, dass das Prepolymer direkt auf das Bauteil extrudiert wird.5. The method according to any one of claims 1 to 3, d a d u r c h g e k e n n z e i c h n e t that the prepolymer is extruded directly onto the component. 6. Verfahren nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t, dass Kanten an dem Bauteil von dem extrudierten und vernetzten Polymer überdeckt werden.6. The method according to any one of claims 1 to 5, so that edges on the component are covered by the extruded and crosslinked polymer. 7. Verfahren nach einem der Ansprüche 1 bis 6, d a d u r c h g e k e n n z e i c h n e t, dass die Vernetzung des Prepolymers durch elektromagnetische Wellen erfolgt.7. The method according to any one of claims 1 to 6, that the crosslinking of the prepolymer takes place by means of electromagnetic waves. 8. Verfahren nach einem der Ansprüche 1 bis 7, d a d u r c h g e k e n n z e i c h n e t, dass das Prepolymer durch UV-Strahlung vernetzt wird. 8. The method according to any one of claims 1 to 7, d a d u r c h g e k e n n z e i c h n e t that the prepolymer is crosslinked by UV radiation.
PCT/EP2003/012570 2002-12-19 2003-11-11 Method for coating a component for painting made from fibre-reinforced plastic Ceased WO2004056561A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03775337A EP1575770A1 (en) 2002-12-19 2003-11-11 Method for coating a component for painting made from fibre-reinforced plastic

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10259597A DE10259597B4 (en) 2002-12-19 2002-12-19 Method for covering defects and pores on the surface of fiber-reinforced plastic components
DE10259597.6 2002-12-19

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WO2004056561A1 true WO2004056561A1 (en) 2004-07-08

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WO (1) WO2004056561A1 (en)

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DE102011012143B4 (en) 2011-02-24 2015-11-05 Daimler Ag Fiber-plastic laminate component

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