Method to produce a thermoplastic wear resistant foil

Patent metadata

Field	Value
Publication number	US-10059084-B2
Application number	US-201514790774-A
Country	US
Kind code	B2
Filing date	Jul 2, 2015
Priority date	Jul 16, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A method to produce a wear resistant foil, including providing a first foil including a first thermoplastic material, applying wear resistant particles on the first foil, applying a second foil including a second thermoplastic material on the first foil, and adhering the first foil and the second foil to each other to form a wear resistant foil.

First claim

The invention claimed is:

1. A method to produce a wear resistant foil, comprising
providing a first foil comprising a first thermoplastic material,
applying a second foil comprising a second thermoplastic material on the first foil,
applying wear resistant particles directly on the first foil and/or on the second foil prior to applying the second foil on the first foil, the wear resistant particles being applied as a dry powder, and
adhering the first foil to the second foil with the dry powder wear resistant particles therebetween for forming the wear resistant foil so that all of the wear resistant particles of the wear resistant foil are fully enclosed between the first foil and the second foil.

2. The method according to claim 1 , wherein the first thermoplastic material comprises polyvinyl chloride (PVC).

3. The method according to claim 1 , wherein the second thermoplastic material comprises polyurethane (PU).

4. The method according to claim 1 , wherein the first thermoplastic material comprises polyvinyl chloride (PVC), polyester, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyurethane (PU), polyethylene terephthalate (PET), polyacrylate, methacrylate, polycarbonate, polyvinyl butyral, polybutylene terephthalate, or a combination thereof.

5. The method according to claim 1 , wherein the second thermoplastic material comprises polyvinyl chloride (PVC), polyester, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyurethane (PU), polyethylene terephthalate (PET), polyacrylate, methacrylate, polycarbonate, polyvinyl butyral, polybutylene terephthalate, or a combination thereof.

6. The method according to claim 1 , wherein the wear resistant particles comprise aluminium oxide.

7. The method according to claim 1 , wherein the wear resistant particles have an average particle size of less than 45 μm.

8. The method according to claim 1 , wherein the first and the second foil are adhered to each other by pressing.

9. The method according to claim 1 , wherein the wear resistant particles are applied on the first foil.

10. The method according to claim 1 , wherein the second foil is formed by an extrusion process on the first foil.

11. The method according to claim 1 , wherein a thickness of the second foil is less than 75 μm.

12. The method according to claim 1 , wherein the wear resistant foil is substantially transparent.

13. The method according to claim 1 , wherein the first and the second foil are adhered to each other by pressing without an adhesive.

14. A method to produce a wear resistant foil, comprising
providing a first foil comprising a first thermoplastic material,
applying a second foil comprising a second thermoplastic material on the first foil,
applying wear resistant particles on the first foil and/or on the second foil prior to applying the second foil on the first foil, and
adhering the first foil directly to the second foil with the wear resistant particles between the first foil and the second foil to form the wear resistant foil,
wherein all of the wear resistant particles of the wear resistant foil are fully enclosed between the first foil and the second foil,
wherein the first thermoplastic material comprises polyvinyl chloride (PVC), and
wherein the wear resistant particles have an average particle size of less than 45 μm.

15. The method according to claim 14 , wherein the second thermoplastic material comprises polyurethane (PU).

16. The method according to claim 14 , wherein the second foil is formed by an extrusion process on the first foil.

17. The method according to claim 14 , wherein the wear resistant particles comprise aluminium oxide.

18. The method according to claim 14 , wherein the wear resistant particles and the second foil each possess a refractive index of 1.4-1.9.

19. The method according to claim 14 , wherein the average particle size of the wear resistant particles is greater than a thickness of the second foil.

Assignees

• Valinge Innovation Ab

Inventors

• Lundblad Christer
• Hakansson Niclas
• Ziegler Goran

Classifications

• E04F15/107

  composed of several layers, e.g. sandwich panels (layered products in general B32B; producing decorative panels or veneers B44C5/04) · CPC title

• E04F15/105

  of organic plastics with or without reinforcements or filling materials · CPC title

• B32B2471/00

  Floor coverings (B32B2419/04 takes precedence) · CPC title

• B32B2419/04

  Tiles for floors or walls · CPC title

• B32B2419/00

  Buildings or parts thereof · CPC title