Method for producing an abrasion- and water-resistant multilayer panel and a panel which is produced using said method

Patent metadata

Field	Value
Publication number	US-12311404-B2
Application number	US-202017425103-A
Country	US
Kind code	B2
Filing date	Jan 9, 2020
Priority date	Jan 23, 2019
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

It is provided a method for producing an abrasion- and water-resistant multilayer panel, in particular an abrasion- and water-resistant flooring panel, including the steps: providing at least one plastic carrier plate, in particular a PVC carrier plate; applying at least one base coat to the surface of the plastic carrier plate; printing the plastic carrier plate by direct printing to form a decorative layer; applying at least one first cover layer to the printed decorative layer; uniformly scattering abrasion-resistant particles onto the at least one cover layer applied to the decorative layer; applying at least one second covering layer to the layer of scattered abrasion-resistant particles; optionally, introducing a structure into the at least second cover layer, applying at least one lacquer layer, and curing the layer structure.

First claim

The invention claimed is:

1. A method of manufacturing an abrasion and water resistant multilayer panel comprising the steps of:
providing at least one polyvinyl chloride (PVC) carrier plate;
applying at least one base coat comprising at least one polyurethane hot melt adhesive to a surface of the PVC carrier plate;
applying at least one white base coat on top of the at least one base coat;
direct printing of the PVC carrier plate with a formation of a decorative layer;
applying at least one first cover layer comprising a polyurethane hot melt adhesive to the decorative layer, wherein the amount of the polyurethane hot melt adhesive of the at least one first cover layer is 20 and 50 g/m 2 ;
uniformly scattering a layer of abrasion-resistant particles onto the at least one first cover layer applied to the decorative layer;
applying at least one second cover layer comprising a polyurethane hot melt adhesive to the layer of scattered abrasion resistant particles, wherein the amount of the polyurethane hot melt adhesive of the at least one second cover layer varies depending on the amount of the polyurethane hot melt adhesive of the first cover layer and is 20 and 50 g/m 2 ;
introducing a structure into the at least one second cover layer;
applying at least one lacquer layer to the at least one second cover layer; and
curing the layer structure,
wherein the polyurethane hot melt adhesive is applied as the first cover layer and the second cover layer at an application temperature of around 150° C.

2. The method according to claim 1 , wherein the surface of the PVC carrier plate is pretreated before printing to improve adhesion of subsequent layers.

3. The method according to claim 1 , wherein the at least one base coat applied to the surface of the PVC carrier plate before printing comprises at least one primer layer.

4. The method according to claim 1 , wherein the at least one white base coat is applied to the at least one base coat by digital printing.

5. The method according to claim 1 , wherein the at least one decorative layer is applied by digital printing.

6. The method according to claim 1 , wherein particles of corundum (aluminum oxides), boron carbides, silicon dioxides, silicon carbides are used as abrasion-resistant particles.

7. The method according to claim 1 , wherein the at least one lacquer layer comprises a UV top lacquer.

8. The method according to claim 1 , further comprising providing a lockable tongue-and-groove joint at at least two opposite edges of the panel.

9. The method according to claim 1 , wherein the panel is an abrasion and water resistant floor panel.

10. The method according to claim 1 , wherein the amount of the polyurethane hot melt adhesive of the first cover layer is 30 and 40 g/m2.

11. The method according to claim 1 , wherein the amount of the polyurethane hot melt adhesive of the second cover layer is 30 and 40 g/m2.

12. The method according to claim 2 , wherein the pretreatment is a grinding operation.

Assignees

• Flooring Technologies Ltd

Inventors

• Lehnhoff Ingo
• Kalwa Norbert
• Oldorff Frank

Classifications

• B05D2601/20

  used for non-pigmentation effect · CPC title

• B05D2503/00

  Polyurethanes · CPC title

• B05D2350/38

  by mechanical means · CPC title

• B05D2252/04

  of definite length in a continuous process · CPC title

• B05D2201/02

  Polymeric substrate · CPC title