Granted Patent B2

US 12,343,966 · App. 18/487,049 · Granted Jul 1, 2025

Inventors: Christer Lundblad (Örkelljunga, SE); Niclas Håkansson (Viken, SE); Göran Ziegler (Viken, SE)

Assignee: VALINGE INNOVATION AB

B32B27/08B32B5/16B32B5/18B32B19/045B32B19/048B32B21/02B32B21/08B32B21/12B32B27/065B32B27/14B32B27/20B32B27/22B32B27/304B32B27/32B32B27/36B32B27/365B32B27/40B32B33/00B32B37/10B32B37/14B32B37/24E04F15/105E04F15/107B29C48/15B29K2075/00B29K2627/06B32B37/1027B32B37/12B32B37/153B32B37/223B32B38/06B32B38/145B32B2250/02B32B2250/24B32B2250/246B32B2250/40B32B2264/02B32B2264/067B32B2264/10B32B2264/101B32B2264/102B32B2264/107B32B2264/12B32B2270/00B32B2307/412B32B2307/554B32B2307/584B32B2307/744B32B2309/105B32B2317/16B32B2419/00B32B2419/04B32B2471/00

Abstract

Claims (45)

1. A wear resistant foil comprising:

a first foil comprising a first thermoplastic material;

a second foil comprising polyethylene terephthalate; and

wear resistant particles,

wherein the wear resistant particles do not protrude from a surface of the second foil opposite the first foil, and

wherein an entire surface of the second foil opposite the first foil is free of any wear resistant particles protruding from the surface.

2. The wear resistant foil according to claim 1 , wherein all of the wear resistant particles are arranged between the first and second foils, wherein all of the wear resistant particles are enclosed by the first foil and the second foil.

3. The wear resistant foil according to claim 1 , wherein the first thermoplastic material comprises polyethylene terephthalate.

4. The wear resistant foil according to claim 1 , wherein the first foil is free of polyvinyl chloride (PVC).

5. The wear resistant foil according to claim 1 , wherein the wear resistant particles comprise aluminium oxide.

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

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

8. The wear resistant foil according to claim 1 , wherein the wear resistant foil is formed by pressing the first foil and the second foil together, wherein a thickness of the second foil is less than 75 μm after pressing.

9. The wear resistant foil according to claim 1 , wherein the wear resistant particles have a refractive index and the second foil has a refractive index, wherein the refractive index of the wear resistant particles does not differ from the refractive index of the second foil more than ±20%.

10. The wear resistant foil according to claim 1 , wherein the wear resistant particles have a refractive index of 1.4-1.9.

11. The wear resistant foil according to claim 1 , wherein the wear resistant particles have a refractive index of 1.7-1.8.

12. The wear resistant foil according to claim 1 , wherein the wear resistant foil further comprises scratch resistant particles.

13. The wear resistant foil according to claim 12 , wherein the scratch resistant particles comprise disc shaped particles having a width/thickness ratio being equal or exceeding 3:1.

14. The wear resistant foil according to claim 12 , wherein the scratch resistant particles have an average particle size of 1-50 μm.

15. The wear resistant foil according to claim 12 , wherein the scratch resistant particles have an average particle size of 10-20 μm.

16. A building panel comprising:

a core; and

a wear resistant foil arranged on the core,

wherein the wear resistant foil comprises:

a first foil comprising a first thermoplastic material;

a second foil comprising polyethylene terephthalate; and

wear resistant particles,

wherein the first foil is arranged closer to the core than the second foil, and

wherein an entire surface of the second foil opposite the first foil is free of any wear resistant particles protruding from the surface.

17. The building panel according to claim 16 , wherein all of the wear resistant particles are arranged between the first and the second foil, wherein all of the wear resistant particles are enclosed by the first and the second foil.

18. The building panel according to claim 16 , wherein the first thermoplastic material comprises polyethylene terephthalate.

19. The building panel according to claim 16 , wherein the first foil is free of polyvinyl chloride (PVC).

20. The building panel according to claim 16 , wherein the wear resistant particles comprise aluminium oxide.

21. The building panel according to claim 16 , wherein the wear resistant particles have an average particle size of less than 45 μm.

22. The building panel according to claim 16 , wherein the core 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.

23. The building panel according to claim 16 , wherein the core comprises polyethylene terephthalate (PET).

24. The building panel according to claim 16 , further comprising a decorative layer arranged on the core, wherein the wear resistant foil is arranged on the decorative layer.

25. The building panel according to claim 16 , wherein the wear resistant foil is formed by pressing the first foil and the second foil together, wherein a thickness of the second foil is less than 75 μm after pressing.

26. The building panel according to claim 16 , wherein the wear resistant particles have a refractive index and the second foil has a refractive index, wherein the refractive index of the wear resistant particles does not differ from the refractive index of the second foil more than +20%.

27. The building panel according to claim 16 , wherein the wear resistant particles have a refractive index of 1.4-1.9.

28. The building panel according to claim 16 , wherein the wear resistant particles have a refractive index of 1.7-1.8.

29. The building panel according to claim 16 , wherein the wear resistant foil further comprises scratch resistant particles.

30. The building panel according to claim 29 , wherein the scratch resistant particles comprise disc shaped particles having a width/thickness ratio being equal or exceeding 3:1.

31. The building panel according to claim 29 , wherein the scratch resistant particles have an average particle size of 1-50 μm.

32. The building panel according to claim 29 , wherein the scratch resistant particles have an average particle size of 10-20 μm.

Assignments (1)

Priority Claims (3)

Continuity (4)

References Cited (400)