UNDERLAY MAT FOR FLOOR COVERINGS

Abstract

A resolving issue of manufacturing an underlay mat enabling the easy installation, which meets high requirements regarding utility properties and durability despite low costs of materials and production, as well as good tolerance by the natural environment. This task is fulfilled by the underlay mat for floor coverings, which contains: the foamed polystyrene layer, the PET (polyethylene terephthalate) film on the top side of the polystyrene layer, the layer of adhesive applied on the PET film and the removable protective layer applied on the layer of adhesive.

Claims

1. A underlay mat for floor coverings which contains: the foamed polystyrene layer, the PET film on the top side of the polystyrene layer, the layer of adhesive applied onto the PET film and the removable protective layer applied on the layer of adhesive.

2. The underlay mat according to claim 1 wherein the polystyrene layer consists of extruded polystyrene.

3. The underlay mat according to claim 1, wherein the polystyrene layer has the specific weight ranging between 30 and 200 kg/m3.

4. The underlay mat according to claim 1 wherein the polystyrene layer has the thickness ranging between 1.1 and 1.8 mm.

5. The underlay mat according to claim 1 wherein the PET film is laminated directly on the top side of the polystyrene layer.

6. The underlay mat according to claim 1 wherein the PET film was glued directly on the top side of the polystyrene layer by means of an adhesive which was also used to generate the layer of adhesive.

7. The underlay mat according to claim 1 wherein the layer of adhesive includes the fibre mesh which is immersed in it.

8. The underlay mat according to claim 1 wherein the removable protective layer contains plastic foil and/or the layer of paper.

9. The underlay mat according to claim 1 wherein the underlay mat has the surface specific weight ranging between 0.25 and 0.5 kg/m2.

10. The underlay mat according to claim 1 wherein the thickness of the underlay mat ranges between 0.8 and 3.0 mm.

11. The underlay mat according to claim 1 wherein the polystyrene layer is the lowest layer of the underlay mat.

Description

[0039] The invention has been described below based on one embodiment in reference to the attached figure. The cross-section of the underlay mat has been presented in FIG. 1 in accordance with the given embodiment.

[0040] FIG. 1 presents, without being true to scale, the cross-section of the underlay mat for floor coverings, which occurs in the presented example in the form of a rolled material with a length of many metres (e.g. 8.50 m) and width of more or less one metre (e.g. 1.20 m). [0041] The underlay mat presented in FIG. 1 consists of: [0042] the foamed polystyrene layer (1), [0043] the PET film (2) on the top side of the polystyrene layer (1), [0044] the layer of adhesive (3) applied on the PET film (2) and [0045] the removable protective layer (4) applied on the layer of adhesive (3).

[0046] In the presented example, the polystyrene layer (1) consists of extruded polystyrene, often referred to as XPS, with a specific weight of around 100 kg/m3 and thickness of around 1.4 mm.

[0047] The PET film (2) was laminated directly on the top side of the polystyrene layer by means of a relatively thin layer of adhesive (5) (e.g. acrylic adhesive) 1.

[0048] The layer of adhesive (3) applied on the PET film (2) is formed by the same adhesive which was used to generate the layer of adhesive (5).

[0049] In order to improve the mechanical load capacity of gluing (not presented in the figure) of the floor veneer by means of the layer of adhesive (3), the layer is characterised by the square fibre mesh immersed in it (3).

[0050] After laying the underlay mat on the substrate, the user can successively remove the protective layer of paper/plastic material (4) from the top side of the underlay mat, lay the elements of the floor covering on it (such as e.g. PVC panels) and glue them at the same time. The top layer of the underlay mat is made from paper, thus it can bear any print without any problem.