EP2532534A1 - Kit for producing panels with concrete appearance - Google Patents

Abstract

The kit comprises a support plate made of wood-based material, filler such as glass or mineral fiber mixed with anhydrous base, or raw material for the preparation of filler. The filler is applied extensively onto the support plate. A primer such as synthetic resin is applied before the application of the filler to the support plate to seal the filler to the support plate surface. Independent claims are included for the following: (1) a panel; and (2) a method for producing panel.

Description

The present invention relates to a kit for assembling surfaces such as walls, floors or ceilings or of structures such as e.g. Exhibition stands through panels with a concrete look. These panels are formed of support plates, which consist of wood or wood materials such as veneer, chipboard, MDF or HDF fiberboard, and which are arranged adjacent to each other surface usually.

STATE OF THE ART

There is an increasing need to replace heavy and expensive building materials with lighter and less expensive materials, not least to conserve resources. In interiors surfaces are becoming increasingly popular, which consist of concrete.

From the prior art wall panels are known which provide a concrete look. These often consist of several support plates, such as MDF fiberboard on which a printed decorative paper was applied with a concrete pattern. However, such paper-based surfaces almost never achieve the required dullness of real concrete. In addition, the printed concrete pattern inevitably repeats when a number of such carrier plates are applied side by side.

DE10340238 describes a coated building board with concrete look on the basis of an MDF carrier plate and a filler. The putty is applied by the factory with the help of a film, and there are finished coated building boards to the customer delivered. This has the disadvantages that during delivery and further processing a part of the filler can chip off, which can lead to an ugly appearance especially at the corners and edges, and that fasteners for the panels and any joints are not covered with the filler after assembly , To improve the adhesion of the filler is proposed to grind the carrier before applying the filler or to introduce a grid or other comparable structure in the filler.

PRESENTATION OF THE INVENTION

It is an object of the present invention to provide a system for producing concrete or stone-look panels which, on the one hand, allows the surface formed by the panel to be seamlessly covered with the concrete or stone appearance and, on the other hand, allows improved durability of the panel ,

• mindestens eine Trägerplatte aus einem holzbasierten Werkstoff;
• eine Spachtelmasse oder einen Grundstoff zur Anfertigung einer Spachtelmasse durch Mischen mit Wasser, wobei die Spachtelmasse dazu vorgesehen ist, flächig auf die Trägerplatte aufgetragen zu werden; sowie
• einen Primer, der dazu vorgesehen ist, vor dem Auftrag der Spachtelmasse auf die Trägerplatte aufgebracht zu werden, um die Trägerplatte oberflächlich zu versiegeln und das Trocknungsverhalten und/oder die Haftung der Spachtelmasse auf der Trägerplatte zu verbessern.

For this purpose, the present invention proposes a kit (ie a kit) for producing a concrete or stone-look panel. The kit includes:

• at least one support plate made of a wood-based material;
• a putty or a base material for making a putty by mixing with water, wherein the putty is intended to be applied flat on the support plate; such as
• a primer intended to be applied to the backing plate prior to application of the filler to superficially seal the backing plate and improve the drying performance and / or adhesion of the filler to the backing plate.

The present invention makes it possible to disguise any structures and surfaces easily and inexpensively with a panel that closely mimics the appearance of concrete surfaces. By the putty is not already applied to the factory, but only after the customer has applied to the surface to be covered or structure after mounting the support plates, it is possible to cover joints and fasteners with the filler. The primer allows improved adhesion of the filler and leads to an improved appearance of the resulting panel. The primer can be applied either before or after the mounting of the carrier plates on the surface to be covered or structure.

The primer fulfills two functions: on the one hand it provides adhesion between the carrier plate and the later applied filler, and on the other hand it fills the pores of the carrier plate so that even a small application amount of filler is sufficient and their moisture is absorbed only reduced when applying the wood material , As a result, the putty hardens evenly and results in a more uniform appearance. A prior grinding of the support plate, as proposed in the prior art, can be eliminated thereby. This is particularly advantageous when the kit is to be processed by end users (e.g., do-it-yourselfers) who often lack the ability to evenly grind. Likewise, the use of gratings or other auxiliary structures in the putty, as have already been proposed in the prior art, can be dispensed with. While such primers are commonly used in the art to treat surfaces of concrete, cement, screed, etc., it is proposed herein to treat a support plate of a wood-based material with such a primer.

The primer preferably consists essentially of a dispersion of synthetic resins. The primer "Uni-Grunt - quick drying priming emulsion, Szybkoschnaca Emulsja Gruntujaca" of the Polish manufacturer "Atlas Group" has achieved particularly good results in tests.

The putty preferably contains cement, aggregates and water, much like a traditional cement mortar. It may consist essentially of these three constituents or may contain other chemicals and / or modifiers (adjuvants). In experiments, it has been found that compositions with a relatively high cement content (at least about 20 wt .-% based on the anhydrous base material of the filler, preferably about 20-30 wt .-%) give a particularly appealing concrete look. The additives are chemically substantially inert constituents such as (silicate) sand, ground limestone and / or kaolin, etc. The aggregates are preferably present in a proportion by weight of at least about 50% based on the anhydrous base material, in particular approx. 50-70%. The further chemicals or modifiers may include, for example: inorganic adjuvants such as calcium sulfate or gypsum; Polymers or precursors of polymers, eg, ethylene vinyl acetate, to improve the cure behavior; water-retaining substances such as clay, starch or cellulose derivatives, in particular cellulose ethers, for example methylcellulose or carboxymethylcellulose; defoamers; Fragrances; Dispersant; Abbindaccleuniger etc. Such adjuvants are known from the prior Techik. They are preferably in a proportion of 0.5 wt .-% - 20 wt .-%, more preferably about 1 wt .-% - 10 wt.%, Based on the anhydrous base material before.

Particularly preferred is a filler, as it is commonly used for laying floor slabs or tiles. The putty "Universal Tile Adhesive, Zaprawa Klejowa Klej Uniwersalny" of the Polish manufacturer "Atlas Group" has achieved particularly good results in tests.

In one embodiment, fibers, in particular glass fibers or mineral fibers, in particular basalt fibers, may additionally be added to the putty in order to achieve a fire-retardant effect, preferably in an amount of from 0.1% by weight to 2% by weight, based on the anhydrous base material. Preferably, such fibers have a diameter of less than 0.2 mm and a length of 1 to 20 mm, more preferably a diameter of at most about 0.1 mm and a length of 5-15 mm.

Alternatively or additionally, dyes or color pigments can also be mixed into the putty in order to achieve special color effects.

The support plate is made of wood or wood-based materials such as veneer, chipboard, MDF or HDF fiberboard. The choice of wood-based material is not particularly critical.

The kit may also comprise fastening means for mounting the support plates to the structure to be clad, preferably prior to coating with the putty. Such fasteners may include, for example dowels and screws. You can alternatively or additionally also a prefabricated wooden frame include. Spacers can be optionally used between the individual carrier plates so that the carrier plates can be mounted evenly.

The present invention also relates to a finished panel, comprising at least one support plate made of a wood-based material, on which a putty is applied flat, wherein the support plate was provided before applying the putty with a primer which seals the support plate surface. The panel may be fastened to a structure to be clad by fasteners. It is preferred if the fastening means, at least one joint between adjacent carrier plates and / or at least one outer edge of the carrier are at least partially covered with the filler. The considerations made in connection with the kit regarding the choice of carrier plate, primer and putty apply mutatis mutandis to the finished panel.

1. (a) Montieren mindestens einer Trägerplatte aus einem holzbasierten Werkstoff an einer zu verkleidenden Struktur durch Befestigungsmittel;
2. (b) Aufbringen eines Primers auf die Trägerplatte vor oder nach dem Montieren der Trägerplatte; und
3. (c) Aufbringen einer Spachtelmasse auf die mit dem Primer versehenen und montierten Trägerplatte.

The present invention also provides a method of making a concrete or stone-look panel comprising:

1. (A) mounting at least one support plate made of a wood-based material to a structure to be covered by fastening means;
2. (b) applying a primer to the backing plate before or after mounting the backing plate; and
3. (c) applying a putty to the primer provided and mounted carrier plate.

After application of the primer and after assembly of the carrier plates, the putty is applied. Before applying the putty, a drying step for at least partially drying the primer may be provided. The filler can be spread over one or more support plates with a spatula. An advantage of this is that, depending on the desired effect, the outer edges, any joints between adjacent support plates, and / or the fastening means can be at least partially covered with putty. Thus, a very large and very uniform surface can be achieved with the desired appearance. With prefabricated panels, this is usually not possible. A simple wooden block ("float") which at the end still over the evenly applied Putty is pulled provides a particularly favorable, concrete-like, matte appearance.

The method can be carried out using a kit as described above or even without such a kit. The considerations made above in connection with the kit for the choice of the carrier plate, the primer and the putty apply mutatis mutandis to this method.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the following the invention will be explained with reference to an embodiment which is not to be construed restrictively.

Support plates in the form of particleboard class P5 (water resistant) with the dimensions 833 x 625 x 10 mm were provided. These contained holes with a diameter of 32 mm at the corners, at a distance of 8 cm from the side edges. These support plates were uniformly coated and allowed to dry unilaterally with the untreated ATLAS Uni-Grunt primer, then the support plates were fastened to a wall with screws in the form of screws.The ATLAS Universal Tile Adhesive was mixed with a little water and stirred. The putty was almost solid and not liquid.The putty was evenly applied to several mounted support plates with a spatula and then the surface was covered with a wooden block.The application of several thin layers covered the screws and the joints between several After the drying time, the surface with the concrete optics was completely finished, no further processing steps or film applications or the like were necessary.

Claims (12)

Kit for producing a panel with concrete or stone look, comprising: at least one support plate made of a wood-based material; a putty or a base material for making a putty by mixing with water, wherein the putty is intended to be applied flat on the support plate; such as a primer intended to be applied to the backing plate prior to application of the filler to superficially seal the backing plate and improve the drying performance and / or adhesion of the filler to the backing plate. Kit according to claim 1, characterized in that the primer consists essentially of an emulsion of synthetic resins. Kit according to claim 1 or 2, characterized in that the filler contains: Cement, preferably in a proportion of at least 20 wt .-% based on the anhydrous base material; and Aggregates. Kit according to one of the preceding claims, characterized in that the filler contains mineral fibers or glass fibers, preferably in a proportion of 0.1 wt .-% to 2 wt .-% based on the anhydrous base material. Kit according to one of the preceding claims, characterized in that the carrier plate is a chipboard or an MDF fiberboard. A kit according to any one of the preceding claims, further comprising attachment means for attaching the support plate to a structure to be covered. Panel, comprising at least one support plate made of a wood-based material, on which a putty is applied flat, characterized in that the support plate was provided prior to the application of the filler with a primer which seals the support plate on the surface. Panel according to claim 7, which is fastened by fastening means on a structure to be covered, characterized in that the fastening means, at least one outer edge of the support plate and / or at least one joint between adjacent support plates are at least partially covered with the filler. A method of making a concrete or stone-look panel comprising: (A) attaching at least one support plate made of a wood-based material to a structure to be covered by fastening means; (b) applying a primer to the backing plate before or after attaching the backing plate; and (c) applying a putty to the provided with the primer and mounted support plate. The method of claim 9, wherein in step (c) the fastening means and / or at least one outer edge of the carrier plate are at least partially covered with the filler. The method of claim 9 or 10, wherein a plurality of carrier plates are attached to each other to form at least one joint adjacent to the structure to be covered, and wherein the joint is covered with the putty. A method according to any of claims 9-11 using a kit according to any one of claims 1-6.