EP0307759A1 - Method for producing coatings with formation of patinated structured surfaces - Google Patents

Method for producing coatings with formation of patinated structured surfaces Download PDF

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Publication number
EP0307759A1
EP0307759A1 EP19880114486 EP88114486A EP0307759A1 EP 0307759 A1 EP0307759 A1 EP 0307759A1 EP 19880114486 EP19880114486 EP 19880114486 EP 88114486 A EP88114486 A EP 88114486A EP 0307759 A1 EP0307759 A1 EP 0307759A1
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EP
European Patent Office
Prior art keywords
layer
coating
patinated
formation
weight
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.)
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Application number
EP19880114486
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German (de)
French (fr)
Inventor
Reinhold Dederichs
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Bayer AG
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Bayer AG
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Filing date
Publication date
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Publication of EP0307759A1 publication Critical patent/EP0307759A1/en
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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
    • B05D3/10—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 other chemical means
    • B05D3/107—Post-treatment of applied 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/061—Special surface effect
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/067—Metallic effect
    • B05D5/068—Metallic effect achieved by multilayers
    • 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
    • B05D7/56—Three layers or more

Definitions

  • the method according to the invention is suitable for coating any substrates which are resistant to the coating compositions, for example for coating surfaces based on metal, plastics, wood, chipboard, paper or ceramic.
  • the substrate to be coated is coated with a viscous, spatula-like coating composition, this first coating having an irregular layer thickness, i.e. must have a certain roughness.
  • the minimum roughness is 75 ⁇ m, preferably the roughness is 100 to 200 ⁇ m.
  • the coating material used in stage a) generally has a spatula-like consistency at 20 ° C.
  • This structural layer can be produced, for example, by hand using a spatula or also by machine.
  • Coating compositions suitable for producing this first layer are, for example, those based on one- or two-component polyurethane systems of the type known per se, which are preferably used in a solvent-free manner.
  • the coating compositions can contain up to 300% by weight, based on the binder, of inert fillers. It must be emphasized in this context be that the amount of filler additives and the chemical composition of the coating agent used in the first stage are not important, provided that the coating agent has a sufficiently high viscosity to form structural surfaces of the above-mentioned roughness.
  • the first layer obtained according to a) After the first layer obtained according to a) has hardened, it is provided with a metallic lacquer layer in a second operation b).
  • Coating agents suitable for this purpose are known, commercially available metallic lacquers which contain, for example, zinc, iron, aluminum or copper powder as metal particles.
  • the dry layer thickness of this lacquer coating is generally within the range from 1 to 30 ⁇ m, preferably within the range from 5 to 15 ⁇ m, but this layer thickness is not essential to the invention.
  • the metallic basecoat layer according to b) is then provided with a physically drying paint layer containing dyes and / or color pigments, which can be obtained, for example, using a suitable coating agent or a corresponding paint stain.
  • all physically drying coating compositions based on non-crosslinking binders are suitable for carrying out the third stage c) of the process according to the invention, for example those based on cellulose esters or based on non-reactive polyurethane resins.
  • the according to c) Coating agents or paint stains used are preferably brown to brown-black or gray in color.
  • the coating compositions or paint stains applied in accordance with c) should on the one hand not attack the metallic lacquer coating produced in accordance with b) and on the other hand should be partially soluble in the solvent used in step d) below.
  • the coating agents or paint stains used according to process steps b) and c) can be applied by any method, such as brushing, spraying or spraying.
  • the layer obtained according to c) is then partially removed after drying by means of a suitable solvent for this layer.
  • a suitable solvent for this layer This can be done, for example, using a solvent-soaked rag. Care must be taken to ensure that no aggressive solvents are used for the layer applied according to c), so that only a partial removal of this layer is possible.
  • a coating agent or a paint stain based on cellulose ester is used, a mixture of ethanol: benzine 1: 9 is suitable as a solvent, for example.
  • a coating agent or a paint stain based on non-reactive polyurethane resins is used, for example a mixture of ethanol and toluene in a weight ratio of 1: 1 is suitable as the solvent.
  • the desired patinated structural surface results from the simultaneous presence of a roughness depth which corresponds in the first approximation to the roughness depth of the layer applied in accordance with a) and the metallic coating layer which is ultimately only partially and irregularly coated with the paint layer in accordance with c).
  • the patinated structural surface present after the fourth stage d) of the process according to the invention can, if desired, be protected in a further reaction step e) by applying a clear lacquer layer against mechanical, chemical and weather influences.
  • Any known clearcoats are suitable for this, for example those based on alkyd resins, unsaturated polyester resins, polyurethane resins, epoxy resins, drying oils, acrylate resins or based on cellulose derivatives. Baked enamels based on polyester or polyacrylate polyols and masked polyisocyanates or melamine resins are also suitable in principle.
  • the chemical nature of this coating agent which may be used in stage e) is not important. However, two-component polyurethane lacquers drying at room temperature are preferably used to produce the clear lacquer layer e).
  • the method according to the invention is particularly suitable for the production of materials with a decorative surface for the building industry and in the "do it yourself area”.
  • Putty-like two-component coating compound consisting of a mixture of 28.5 parts by weight of polyol I (commercially available polyol based on castor oil (®Desmophen 1150, manufacturer: Bayer AG, Leverkusen)) 28.5 parts by weight of polyol II (commercially available polyol based on a polyhydrazocarbonamide dispersed in polyether polyol (®Desmophen 1920 D, manufacturer: Bayer AG, Leverkusen)) 5.2 parts by weight of reactive diluent (adduct of 1 mol of propylene oxide with 1 mol of phenol) 11.8 parts by weight of filler paste (50% mixture of castor oil and a zeolite with a molar composition of 0.7 K2O x 0.2 Na2O x Al2O3 x 1.9 SiO2) 5.2% by weight thixotropic agent (commercially available thixotropic agent based on hydrogenated castor oil (trade name: Antisettle, supplier: GM Langer
  • polyol IV polyyester polyol of OH number 160 from 3 mol of isophthalic acid, 1 mol of adipic acid, 4 mol of 1,6-dihydroxyhexane and 1 mol of trimethylolpropane
  • methoxypropyl acetate 41 parts by weight of zinc octoate (10% by weight solution in xylene) 27 parts by weight of cellulose acetobutyrate (commercially available cellulose acetobutyrate (®Cellit BP 300, manufacturer: Bayer AG)) 3 parts by weight of deaerating agent (deaerating agent based on acrylate, 10% in methoxy propyl acetate (®Acron
  • the end result is a stable, patinated surface on the substrate.

Abstract

The method of producing coatings on any desired substrates with the formation of patinated structured surfaces having a metallic effect a)by coating the substrate with a putty-like coating compound with the formation of a first layer having a peak-to-valley height of not less than 75 mu m, b)coating said first layer with a metallic base lacquer layer, c)coating the layer obtained in accordance with b) with a physically drying coating agent containing dyestuffs and/or coloured pigments, d)partially removing the layer obtained in accordance with c) by means of a solvent and, optionally, e)applying a clear lacquer layer to the coating obtained after step b).

Description

Gegenstand der Erfindung ist ein Verfahren zur Herstel­lung von Beschichtungen auf beliebigen Substraten unter Ausbildung von patinierten Strukturoberflächen mit Metallic-Effekt, dadurch gekennzeichnet, daß man

  • a) das zu beschichtende Substrat unter Verwendung einer spachtelähnlichen Beschichtungsmasse mit einer ersten, einer Rauhtiefe von mindestens 75 µm aufweisenden Schicht versieht,
  • b) die gemäß a) erhaltene Schicht nach ihrer Aus­härtung mit einer Metallic-Basislackschicht versieht,
  • c) die gemäß b) erhaltene Lackschicht mit einem physikalisch trocknenden, Farbstoffe und/oder Farbpigmente enthaltenden Beschichtungsmittel bzw. einer entsprechenden Farbbeize beschichtet und
  • d) die gemäß c) erhaltene Schicht mittels eines Lösungsmittels partiell von der Oberfläche entfernt.
The invention relates to a process for the production of coatings on any substrates with the formation of patinated structural surfaces with a metallic effect, characterized in that
  • a) provides the substrate to be coated using a spatula-like coating compound with a first layer having a roughness depth of at least 75 μm,
  • b) the layer obtained according to a) is provided with a metallic basecoat after it has hardened,
  • c) the lacquer layer obtained according to b) is coated with a physically drying coating agent containing dyes and / or color pigments or a corresponding color stain and
  • d) the layer obtained according to c) is partially removed from the surface by means of a solvent.

Das erfindungsgemäße Verfahren eignet sich zur Beschich­tung von beliebigen, gegenüber den Beschichtungsmitteln resistenten Substraten wie beispielsweise zur Beschich­tung von Oberflächen auf Basis von Metall, Kunststoffen, Holz, Spanplatten, Papier oder Keramik.The method according to the invention is suitable for coating any substrates which are resistant to the coating compositions, for example for coating surfaces based on metal, plastics, wood, chipboard, paper or ceramic.

Im ersten Schritt a) des erfindungsgemäßen Verfahrens wird das zu beschichtende Substrat mit einer viskosen, spachtelähnlichen Beschichtungsmasse beschichtet, wobei diese erste Beschichtung eine unregelmäßige Schicht­dicke, d.h. eine gewisse Rauhtiefe aufweisen muß. Die minimale Rauhtiefe liegt hierbei bei 75 µm, vorzugsweise liegt die Rauhtiefe bei 100 bis 200 µm.In the first step a) of the method according to the invention, the substrate to be coated is coated with a viscous, spatula-like coating composition, this first coating having an irregular layer thickness, i.e. must have a certain roughness. The minimum roughness is 75 µm, preferably the roughness is 100 to 200 µm.

Die in der Stufe a) eingesetzte Beschichtungsmasse weist im allgemeinen bei 20°C eine spachtelähnliche Konsistenz auf. Die Herstellung dieser Strukturschicht kann bei­spielsweise mittels eines Spachtelmessers von Hand oder auch maschinell erfolgen. Zur Herstellung dieser ersten Schicht geeignete Beschichtungsmassen sind beispiels­weise solche auf Basis von Ein- oder Zweikomponenten-­Polyurethansystemen der an sich bekannten Art, die vorzugsweise lösungsmittelfrei zur Anwendung gelangen. Die Beschichtungsmassen können bis zu 300 Gew.-%, bezogen auf das Bindemittel, an inerten Füllstoffen enthalten. Es muß in diesem Zusammenhang hervorgehoben werden, daß es auf die Höhe der Füllstoffzusätze und die chemische Zusammensetzung des in der ersten Stufe einge­setzten Beschichtungsmittels nicht ankommt, vorausge­setzt, das Beschichtungsmittel weist eine zur Ausbildung von Strukturoberflächen der genannten Rauhtiefe ausrei­chend hohe Viskosität auf.The coating material used in stage a) generally has a spatula-like consistency at 20 ° C. This structural layer can be produced, for example, by hand using a spatula or also by machine. Coating compositions suitable for producing this first layer are, for example, those based on one- or two-component polyurethane systems of the type known per se, which are preferably used in a solvent-free manner. The coating compositions can contain up to 300% by weight, based on the binder, of inert fillers. It must be emphasized in this context be that the amount of filler additives and the chemical composition of the coating agent used in the first stage are not important, provided that the coating agent has a sufficiently high viscosity to form structural surfaces of the above-mentioned roughness.

Nach der Aushärtung der gemäß a) erhaltenen ersten Schicht wird diese in einem zweiten Arbeitsgang b) mit einer Metallic-Lackschicht versehen. Hierzu geeignete Beschichtungsmittel sind an sich bekannte, handelsüb­liche Metallic-Lacke, die als Metallteilchen beispiels­weise Zink-, Eisen-, Aluminium- oder Kupferpulver ent­halten. Die Trockenschichtdicke dieser Lackauflage liegt im allgemeinen innerhalb des Bereichs von 1 bis 30 µm, vorzugsweise innerhalb des Bereichs von 5 bis 15 µm, jedoch ist diese Schichtdicke nicht erfindungswesent­lich.After the first layer obtained according to a) has hardened, it is provided with a metallic lacquer layer in a second operation b). Coating agents suitable for this purpose are known, commercially available metallic lacquers which contain, for example, zinc, iron, aluminum or copper powder as metal particles. The dry layer thickness of this lacquer coating is generally within the range from 1 to 30 μm, preferably within the range from 5 to 15 μm, but this layer thickness is not essential to the invention.

Im dritten Arbeitsgang c) wird dann die Metallic-Basis­lackschicht gemäß b) mit einer physikalisch trocknenden, Farbstoffe und/oder Farbpigmente enthaltenden Lack­schicht versehen, die beispielsweise unter Verwendung eines entsprechenden Beschichtungsmittels bzw. einer entsprechenden Farbbeize erhalten werden kann.In the third step c), the metallic basecoat layer according to b) is then provided with a physically drying paint layer containing dyes and / or color pigments, which can be obtained, for example, using a suitable coating agent or a corresponding paint stain.

Zur Durchführung der dritten Stufe c) des erfindungs­gemäßen Verfahrens sind grundsätzlich alle physikalisch trocknenden Beschichtungsmittel auf Basis von nicht vernetzenden Bindemitteln geeignet, beispielsweise solche auf Basis von Celluloseester oder auf Basis von nicht reaktiven Polyurethanharzen. Die gemäß c) zum Einsatz gelangenden Beschichtungsmittel bzw. Farbbeizen weisen vorzugsweise farblich eine braune bis braun­schwarze bzw. graue Einstellung auf.In principle, all physically drying coating compositions based on non-crosslinking binders are suitable for carrying out the third stage c) of the process according to the invention, for example those based on cellulose esters or based on non-reactive polyurethane resins. The according to c) Coating agents or paint stains used are preferably brown to brown-black or gray in color.

Die gemäß c) aufgetragenen Beschichtungsmittel bzw. Farbbeizen sollten die gemäß b) hergestellte Metallic-­Lackauflage einerseits nicht angreifen und andererseits in dem im nachfolgenden Schritt d) eingesetzten Lösungs­mittel partiell löslich sein.The coating compositions or paint stains applied in accordance with c) should on the one hand not attack the metallic lacquer coating produced in accordance with b) and on the other hand should be partially soluble in the solvent used in step d) below.

Die gemäß Verfahrensschritten b) und c) zur Anwendung gelangenden Beschichtungsmittel bzw. Farbbeizen können nach allen beliebigen Methoden wie beispielsweise Streichen, Sprühen oder Spritzen aufgetragen werden.The coating agents or paint stains used according to process steps b) and c) can be applied by any method, such as brushing, spraying or spraying.

In der vierten Stufe d) des erfindungsgemäßen Verfahrens wird nun die gemäß c) erhaltene Schicht nach ihrer Trocknung mittels eines geeigneten Lösungsmittels für diese schicht partiell entfernt. Dies kann beispiels­weise mittels eines Lösungsmittel-getränkten Lappens erfolgen. Dabei ist darauf zu achten, daß keine zu aggressiven Lösungsmittel für die gemäß c) aufgetragene Schicht zum Einsatz gelangen, so daß eine nur partielle Entfernung dieser Schicht möglich ist. Im Falle der Ver­wendung eines Beschichtungsmittels bzw. einer Farbbeize auf Basis von Celluloseester eignet sich beispielsweise als Lösungsmittel ein Gemisch aus Ethanol:Waschbenzin 1:9. Im Falle der Verwendung eines Beschichtungsmittels bzw. einer Farbbeize auf Basis von nicht reaktiven Poly­urethanharzen eignet sich beispielsweise ein Gemisch aus Ethanol und Toluol im Gewichtsverhältnis 1:1 als Lö­sungsmittel.In the fourth stage d) of the process according to the invention, the layer obtained according to c) is then partially removed after drying by means of a suitable solvent for this layer. This can be done, for example, using a solvent-soaked rag. Care must be taken to ensure that no aggressive solvents are used for the layer applied according to c), so that only a partial removal of this layer is possible. If a coating agent or a paint stain based on cellulose ester is used, a mixture of ethanol: benzine 1: 9 is suitable as a solvent, for example. If a coating agent or a paint stain based on non-reactive polyurethane resins is used, for example a mixture of ethanol and toluene in a weight ratio of 1: 1 is suitable as the solvent.

Die angestrebte patinierte Strukturoberfläche ergibt sich aus dem gleichzeitigen Vorliegen einer Rauhtiefe, die in erster Näherung der Rauhtiefe der gemäß a) auf­getragenen Schicht entspricht und der letztendlich nur teilweise und unregelmäßig mit der Farbschicht gemäß c) beschichteten Metallic-Lackschicht.The desired patinated structural surface results from the simultaneous presence of a roughness depth which corresponds in the first approximation to the roughness depth of the layer applied in accordance with a) and the metallic coating layer which is ultimately only partially and irregularly coated with the paint layer in accordance with c).

Die im Anschluß an die vierte Stufe d) des erfindungs­gemäßen Verfahrens vorliegende patinierte Strukturober­fläche kann gewünschtenfalls in einem weiteren Reak­tionsschritt e) durch Auftrag einer Klarlackschicht gegenüber mechanischen, chemischen und Witterungsein­flüssen geschützt werden. Hierfür geeignet sind belie­bige, an sich bekannte Klarlacke, beispielsweise solche auf Basis von Alkydharzen, ungesättigten Polyesterhar­zen, Polyurethanharzen, Epoxidharzen, trocknenden Ölen, Acrylatharzen oder auf Basis von Cellulosederivaten. Auch Einbrennlacke auf Basis von Polyester- oder Poly­acrylatpolyolen und verkappten Polyisocyanaten bzw. Melaminharzen sind prinzipiell geeignet. Selbstver­ständlich kommt es auf die chemische Natur dieses in der Stufe e) gegebenenfalls eingesetzten Beschichtungsmit­tels nicht an. Vorzugsweise werden jedoch bei Raumtempe­ratur trocknende Zweikomponenten-Polyurethanlacke zur Herstellung der Klarlackschicht e) verwendet.The patinated structural surface present after the fourth stage d) of the process according to the invention can, if desired, be protected in a further reaction step e) by applying a clear lacquer layer against mechanical, chemical and weather influences. Any known clearcoats are suitable for this, for example those based on alkyd resins, unsaturated polyester resins, polyurethane resins, epoxy resins, drying oils, acrylate resins or based on cellulose derivatives. Baked enamels based on polyester or polyacrylate polyols and masked polyisocyanates or melamine resins are also suitable in principle. Of course, the chemical nature of this coating agent which may be used in stage e) is not important. However, two-component polyurethane lacquers drying at room temperature are preferably used to produce the clear lacquer layer e).

Das erfindungsgemäße Verfahren eignet sich insbesondere zur Herstellung von Werkstoffen mit einer dekorativen Oberfläche für das Bauwesen und im "Do it yourself-­Bereich".The method according to the invention is particularly suitable for the production of materials with a decorative surface for the building industry and in the "do it yourself area".

Beispielexample Ausgangsmaterialien:Starting materials: Spachtelmasse für die Stufe a):Leveling compound for step a):

Spachtelähnliche Zweikomponenten-Beschichtungsmasse bestehend aus einem Gemisch aus
28,5 Gew.-Teile Polyol I (handelsübliches Polyol auf Rizinusöl-Basis (®Desmophen 1150, Hersteller: Bayer AG, Leverkusen))
28,5 Gew.-Teile Polyol II (handelsübliches Polyol aus Basis eines in Polyether­polyol dispergierten Polyhydrazocarbonamids (®Desmo­phen 1920 D, Hersteller: Bayer AG, Leverkusen))
5,2 Gew.-Teile Reaktivverdünner (Anlagerungsprodukt von 1 Mol Propylenoxid an 1 Mol Phenol)
11,8 Gew.-Teile Füllstoffpaste (50 %ige Mischung aus Rizinusöl und einem Zeolith der molaren Zusammensetzung 0,7 K₂O x 0,2 Na₂O x Al₂O₃ x 1,9 SiO₂)
5,2 Gew.-Thixotropierungsmittel (handelsübliches Thixotropierungsmittel auf Basis von hydriertem Rizinusöl (Handelsbezeichnung: Antisettle, Lieferant: Fa. G.M. Langer, Bremen))
20,8 Gew.-Teile Polyisocyanat (Polyisocyanatgemisch der Diphenylmethanreihe einer Viskosität bei 20°C von 200 mPa.s (®Desmodur VL, Hersteller: Bayer AG, Leverkusen))(der Zusatz der Polyisocyanats erfolgt unmittelbar vor der Verarbeitung der Spachtelmasse)
Putty-like two-component coating compound consisting of a mixture of
28.5 parts by weight of polyol I (commercially available polyol based on castor oil (®Desmophen 1150, manufacturer: Bayer AG, Leverkusen))
28.5 parts by weight of polyol II (commercially available polyol based on a polyhydrazocarbonamide dispersed in polyether polyol (®Desmophen 1920 D, manufacturer: Bayer AG, Leverkusen))
5.2 parts by weight of reactive diluent (adduct of 1 mol of propylene oxide with 1 mol of phenol)
11.8 parts by weight of filler paste (50% mixture of castor oil and a zeolite with a molar composition of 0.7 K₂O x 0.2 Na₂O x Al₂O₃ x 1.9 SiO₂)
5.2% by weight thixotropic agent (commercially available thixotropic agent based on hydrogenated castor oil (trade name: Antisettle, supplier: GM Langer, Bremen))
20.8 parts by weight of polyisocyanate (polyisocyanate mixture of the diphenylmethane series with a viscosity at 20 ° C of 200 mPa.s (®Desmodur VL, manufacturer: Bayer AG, Leverkusen)) (the polyisocyanate is added immediately before processing the filler)

Metallic-Basislack für die Stufe b):Metallic basecoat for level b):

100 Gew.- Teile Polymerisat (15 %ige Lösung in Ethylacetat eines handelsüblichen, Vinylchlorid-Mischpolymerisats (®Vinylite VAGH, Hersteller: Union Carbide))
30 Gew.-Teile Methoxypropylacetat
15 Gew.-Teile Kupferbronze (®Stapa 7600/4 (Hersteller: Eckart Werke, Fürth)
100 parts by weight of polymer (15% solution in ethyl acetate of a commercially available vinyl chloride copolymer (®Vinylite VAGH, manufacturer: Union Carbide))
30 parts by weight of methoxypropylacetate
15 parts by weight of copper bronze (®Stapa 7600/4 (manufacturer: Eckart Werke, Fürth)

Farbbeize zur Durchführung der Stufe c):Color stain for performing stage c):

handelsübliche, dunkelbraun pigmentierte Spritzbeize (®Arti Olesol Spritzbeize Nr. 3156, Hersteller: Arti-­Werke Wuppertal)
commercially available, dark brown pigmented spray stain (®Arti Olesol spray stain No. 3156, manufacturer: Arti-Werke Wuppertal)

Klarlack zur Durchführung der Stufe e):Clear varnish for performing stage e):

Zweikomponenten-Polyurethanlack folgender Zusammenset­zung:
Two-component polyurethane paint with the following composition:

Teil Ipart One

1.000 Gew.-Teile Polyol III (handelsübliche, 50 gew.-%ige Lösung in Xylol/Ethyl­glykolacetat (Gewichtsverhältnis = 1:1) eines Hy­droxylgruppen aufweisenden Polyacrylats (®Desmophen A 450, Hersteller: Bayer AG))
625 Gew.-Teile Polyol IV (Polyesterpolyol der OH-Zahl 160 aus 3 Mol Isophthal­säure, 1 Mol Adipinsäure, 4 Mol 1,6-Dihydroxyhexan und 1 Mol Trimethylolpropan)
50 Gew.-Teile Methoxypropylacetat
41 Gew.-Teile Zinkoctoat (10 gew.-%ige Lösung in Xylol)
27 Gew.-Teile Cellulose-acetobutyrat (handelsübliches Cellulose-acetobutyrat (®Cellit BP 300, Hersteller: Bayer AG))
3 Gew.-Teile Entlüftungsmittel (Entlüftungsmittel auf Acrylatbasis, 10 %ig in Methoxy propylacetat (®Acronal 700 L, Hersteller: BASF AG))
170 Gew.-Teile Mattierungsmittel (handelsübliches Mattierungsmittel auf Silikatbasis (Handelsbezeichnung: Mattierungsmittel OK 412, Hersteller: Degussa AG))
135 Gew.-Teile Lichtschutzmittel I (10 %ige Lösung in Xylol eines handelsüblichen Licht­schutzmittels (®Tinuvin 292, Hersteller: Ciba Geigy AG))
270 Gew.-Teile Lichtschutzmittel II (10 %ige Lösung eines handelsüblichen Lichtschutz­mittels (®Tinuvin 900, Hersteller: Ciba Geigy AG))
1,000 parts by weight of polyol III (commercial, 50% by weight solution in xylene / ethyl glycol acetate (weight ratio = 1: 1) of a hydroxyl group-containing polyacrylate (®Desmophen A 450, manufacturer: Bayer AG))
625 parts by weight of polyol IV (polyester polyol of OH number 160 from 3 mol of isophthalic acid, 1 mol of adipic acid, 4 mol of 1,6-dihydroxyhexane and 1 mol of trimethylolpropane)
50 parts by weight of methoxypropyl acetate
41 parts by weight of zinc octoate (10% by weight solution in xylene)
27 parts by weight of cellulose acetobutyrate (commercially available cellulose acetobutyrate (®Cellit BP 300, manufacturer: Bayer AG))
3 parts by weight of deaerating agent (deaerating agent based on acrylate, 10% in methoxy propyl acetate (®Acronal 700 L, manufacturer: BASF AG))
170 parts by weight of matting agent (commercially available matting agent based on silicate (trade name: matting agent OK 412, manufacturer: Degussa AG))
135 parts by weight of light stabilizer I (10% solution in xylene of a commercially available light stabilizer (®Tinuvin 292, manufacturer: Ciba Geigy AG))
270 parts by weight of light stabilizer II (10% solution of a commercially available light stabilizer (®Tinuvin 900, manufacturer: Ciba Geigy AG))

Teil IIPart II

75 gew.-%ige Lösung in Xylol/Methoxypropylacetat (Gewichtsverhältnis = 1:1) eines Biuretpolyisocyanats auf Basis von 1,6-Diisocyanatohexan (®Desmodur N 75, Hersteller: Bayer AG, Leverkusen)
Vor der Applikation des Klarlacks werden die Teile I und II im Gewichtsverhältnis 100:21 miteinander vermischt.75% by weight solution in xylene / methoxypropyl acetate (weight ratio = 1: 1) of a biuret polyisocyanate based on 1,6-diisocyanatohexane (®Desmodur N 75, manufacturer: Bayer AG, Leverkusen)
Before applying the clearcoat, parts I and II are mixed together in a weight ratio of 100:21.

Erfindungsgemäßes Verfahren:Method according to the invention:

  • a) Die Oberfläche einer Spanplatte der Abmessung 250 x 250 x 5 mm wird leicht angeschliffen und gut gereinigt. Hierauf erfolgt von Hand mittels Spach­telmesser der Auftrag der Spachtelmasse, wobei entscheidend ist, daß durch mehrmaliges, unregel­mäßiges Verteilen der Beschichtungsmasse die Grund­struktur einer Rauhtiefe von 100 bis 2.000 µm er­zeugt wird.a) The surface of a chipboard measuring 250 x 250 x 5 mm is lightly sanded and cleaned well. The leveling compound is then applied by hand using a spatula, it being crucial that the basic structure of a roughness depth of 100 to 2,000 µm is produced by repeated, irregular distribution of the coating composition.
  • b) Nach einer Aushärtezeit von ca. 6 Stunden der gemäß a) aufgetragenen Spachtelmasse wird diese mit dem Metallic-Basislack durch Spritzauftrag beschichtet, wobei die Trockenschichtstärke des Basislacks bei ca. 10 µm liegt. Der Basislack ist nach Lagerung während 30 Minuten bei Raumtemperatur durchgetrock­net.b) After a curing time of approx. 6 hours of the filler applied in accordance with a), it is spray-coated with the metallic basecoat, the dry layer thickness of the basecoat being approximately 10 μm. The basecoat is completely dry after storage for 30 minutes at room temperature.
  • c) Nach Trocknung des Basislacks gemäß b) wird die Farbbeize durch Spritzen aufgetragen (Trocken­schichtdicke: ca. 10 µm). Die Farbbeize ist nach 15-minütigem Trocknen bei Raumtemperatur durchge­trocknet.c) After the basecoat has been dried in accordance with b), the paint stain is applied by spraying (dry layer thickness: approx. 10 μm). The paint stain is completely dry after 15 minutes drying at room temperature.
  • d) Die gemäß c) aufgetragene Farbbeize wird unter Verwendung eines Lösungsmittel-getränkten Lappens (Lösungsmittel = Mischung aus Waschbenzin und Ethanol im Gewichtsverhältnis 9:1) entfernt, bis der gewünschte optische Effekt erreicht ist (nach der teilweisen Entfernung der gemäß c) aufgetrage­nen Schicht ist die darunterliegende Metallic-­Schicht zum Teil freigelegt und zum Teil noch mit der Farbbeize beschichtet).d) The paint stain applied according to c) is removed using a solvent-soaked cloth (solvent = mixture of white spirit and ethanol in a weight ratio of 9: 1) until the desired optical effect is achieved (after the partial removal of the layer applied according to c) the metallic layer underneath is partly exposed and partly still coated with the paint stain).
  • e) Im Anschluß an die Stufe d) wird die vorliegende patinierte Strukturoberfläche mit dem Klarlack durch Spritzauftrag beschichtet (Trockenschicht­dicke des Klarlacks: ca. 25 µm). Der Klarlack ist nach 2- bis 3-stündigem Lagern bei Raumtemperatur ausreichend durchgehärtet.e) Subsequent to step d), the present patinated structural surface is coated with the clear lacquer by spray application (dry layer thickness of the clear lacquer: approx. 25 μm). The clear coat is sufficiently hardened after storage for 2 to 3 hours at room temperature.

Als Endergebnis wird eine stabile, patinierte Oberfläche auf dem Substrat erhalten.The end result is a stable, patinated surface on the substrate.

Claims (3)

1. Verfahren zur Herstellung von Beschichtungen auf beliebigen Substraten unter Ausbildung von pati­nierten Strukturoberflächen mit Metallic-Effekt, dadurch gekennzeichnet, daß man a) das zu beschichtende Substrat unter Verwendung einer hochviskosen Beschichtungsmasse mit einer ersten, einer Rauhtiefe von mindestens 75 µm aufweisenden Schicht versieht, b) die gemäß a) erhaltene Schicht nach ihrer Aus­härtung mit einer Metallic-Basislackschicht versieht, c) die gemäß b) erhaltene Lackschicht mit einem physikalisch trocknenden, Farbstoffe und/oder Farbpigmente enthaltenden Beschichtungsmittel bzw. einer entsprechenden Farbbeize beschich­tet und d) die gemäß c) erhaltene Schicht mittels eines Lösungsmittels partiell von der Oberfläche entfernt. 1. Process for the production of coatings on any substrates with the formation of patinated structural surfaces with a metallic effect, characterized in that a) provides the substrate to be coated with a first layer having a roughness depth of at least 75 μm using a highly viscous coating composition, b) the layer obtained according to a) is provided with a metallic basecoat after it has hardened, c) the lacquer layer obtained according to b) is coated with a physically drying coating agent containing dyes and / or color pigments or a corresponding color stain and d) the layer obtained according to c) is partially removed from the surface by means of a solvent. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Schichtdicke des Basislacks b) 5 bis 15 µm beträgt.2. The method according to claim 1, characterized in that the layer thickness of the basecoat b) is 5 to 15 microns. 3. Verfahren gemäß Anspruch 1 und 2, dadurch gekenn­zeichnet, daß man die nach Durchführung der Reak­tionsschritte a) bis d) vorliegende patinierte Strukturoberfläche in einem weiteren Arbeitsschritt e) mittels einer Klarlackauflage gegenüber mechani­schen, chemischen und Witterungseinflüssen schützt.3. The method according to claim 1 and 2, characterized in that the patinated structure surface present after carrying out the reaction steps a) to d) is protected in a further step e) by means of a clear lacquer coating against mechanical, chemical and weather influences.
EP19880114486 1987-09-18 1988-09-05 Method for producing coatings with formation of patinated structured surfaces Withdrawn EP0307759A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873731433 DE3731433A1 (en) 1987-09-18 1987-09-18 METHOD FOR PRODUCING COATINGS UNDER TRAINING PATINATED STRUCTURAL SURFACES
DE3731433 1987-09-18

Publications (1)

Publication Number Publication Date
EP0307759A1 true EP0307759A1 (en) 1989-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880114486 Withdrawn EP0307759A1 (en) 1987-09-18 1988-09-05 Method for producing coatings with formation of patinated structured surfaces

Country Status (3)

Country Link
EP (1) EP0307759A1 (en)
JP (1) JPH01107873A (en)
DE (1) DE3731433A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723007A1 (en) * 1994-07-29 1996-02-02 Montet Gerard Product decoration with marbled paint finish

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888623A (en) * 1993-03-20 1999-03-30 Hans Grohe Gmbh & Co. Kg Sanitary article or plumbing fitting with a coated surface and a print image applied thereto and a process for making the same
DE4308977A1 (en) * 1993-03-20 1994-09-22 Grohe Kg Hans Sanitary article with a coated surface and process for its manufacture
JP3504621B2 (en) 2001-03-02 2004-03-08 京セラ株式会社 Battery module and its positioning structure
DE102012101482A1 (en) * 2012-02-24 2013-08-29 Peter Schubert Method for mechanical surface treatment of structural components by device, involves moving structural components successively translationally by conveyor in transport direction
DE102013009148B4 (en) * 2013-05-31 2016-02-11 Fl Services Gmbh Mixture for producing a layer in a layer structure, method for producing a layer structure, layer structure and use of the layer structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331391A1 (en) * 1983-08-31 1985-03-07 Dieter 6636 Berus Schmitt Process for the production on polystyrene surfaces of coatings having a metallic action
DE3524831A1 (en) * 1984-07-11 1986-01-16 Kansai Paint Co., Ltd., Amagasaki, Hyogo METALLIC PAINTING PROCESS
EP0217385A2 (en) * 1985-10-02 1987-04-08 Nippon Paint Co., Ltd. Method of forming metallic coatings
EP0238037A2 (en) * 1986-03-17 1987-09-23 Nippon Paint Co., Ltd. Method for forming a metallic coat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331391A1 (en) * 1983-08-31 1985-03-07 Dieter 6636 Berus Schmitt Process for the production on polystyrene surfaces of coatings having a metallic action
DE3524831A1 (en) * 1984-07-11 1986-01-16 Kansai Paint Co., Ltd., Amagasaki, Hyogo METALLIC PAINTING PROCESS
EP0217385A2 (en) * 1985-10-02 1987-04-08 Nippon Paint Co., Ltd. Method of forming metallic coatings
EP0238037A2 (en) * 1986-03-17 1987-09-23 Nippon Paint Co., Ltd. Method for forming a metallic coat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723007A1 (en) * 1994-07-29 1996-02-02 Montet Gerard Product decoration with marbled paint finish

Also Published As

Publication number Publication date
DE3731433A1 (en) 1989-04-06
JPH01107873A (en) 1989-04-25

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