Building panel comprising mineral-based layer

Patent metadata

Field	Value
Publication number	US-12030290-B2
Application number	US-202117345420-A
Country	US
Kind code	B2
Filing date	Jun 11, 2021
Priority date	Jun 12, 2020
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

A panel, such as a floor panel, including a core, an optional upper arrangement and an optional lower arrangement. One or more of the core, the upper arrangement ( 5 ) and the lower arrangement includes a mineral-based layer, preferably including magnesium oxide. One or more of the mineral-based layers includes reinforcement fibres embedded in a mineral-based matrix, preferably including magnesium oxide. The fibres are configured to increase the tensile strength of the mineral-based layer.

First claim

The invention claimed is:

1. A panel comprising a core, an upper arrangement and a lower arrangement, wherein one or more of the core, the upper arrangement and the lower arrangement comprises a mineral-based layer, wherein the mineral-based layer further comprises a polymer compound and magnesium oxide in the amount of 25 to 65 wt %, wherein the panel is a floor panel comprising a front side and a rear side, wherein the front side is a visible side,
wherein the polymer compound comprises Acrylic, Styrene-Acrylic, Vinyl-acetate, Vinyl-Acetate-vinylchloride, Styrene-Butadiene, vinylidene chloride or combinations thereof, and
wherein the polymer compound has a glass transition temperature, the glass transition temperature of the polymer compound being in the range of −50 to 30 C°.

2. The panel according to claim 1 , wherein the mineral-based layer comprises the polymer compound in an amount of 1 to 15 wt %.

3. The panel according to claim 1 , wherein the mineral-based layer further comprises magnesium chloride and/or magnesium sulphate.

4. The panel according to claim 1 , wherein the mineral-based layer further comprises at least one filler, in an amount of 0 to 50 wt %.

5. The panel according to claim 1 , wherein the mineral-based layer further comprises a binding agent, in an amount of 0 to 30 wt %.

6. The panel according to claim 1 , wherein the mineral-based layer further comprises at least one additive, in an amount of 0 to 20 wt %.

7. The panel according to claim 1 , wherein one or more of said mineral-based layers comprises reinforcement fibres embedded in a mineral-based matrix, wherein the fibres are configured to increase the tensile strength of the mineral-based layer.

8. The panel according to claim 1 , wherein the panel comprises a mechanical locking system at respective opposite first and second edges for assembling a first panel in an assembled position with an adjacent second panel by means of a folding displacement F and/or a vertical displacement of the adjacent panels; wherein immediately juxtaposed upper edge portions of the first edge of the first panel and the second edge of the second panel in the assembled position form a vertical plane; the first edge comprising a locking strip projecting beyond the vertical plane and a locking element projecting from the locking strip; the second edge comprising a downwards open locking groove configured to receive the locking element by means of said displacement for horizontal locking of the adjacent panels, wherein a first pair of horizontal locking surfaces comprises a first locking surface provided by the locking element and a second locking surface provided by the locking groove.

9. The panel according to claim 1 , wherein the mineral-based layer further comprises a binding agent, in an amount of 5 to 25 wt %, wherein the binding agent is wood shavings or wood fibres.

10. The panel according to claim 1 , wherein the core is the mineral-based layer.

11. The panel according to claim 1 , wherein the mineral-based layer comprises the polymer compound in an amount of 5 to 15 wt %.

12. The panel according to claim 1 , wherein the mineral-based layer comprises the polymer compound in an amount of 5 to 10 wt %.

13. The panel according to claim 12 , wherein the glass transition temperature of the polymer compound is in the range of −10 to 20° C.

14. The panel according to claim 1 , wherein the glass transition temperature of the polymer compound is in the range of −10 to 20° C.

15. A panel comprising a core, wherein the core comprises a mineral-based layer, wherein the mineral-based layer further comprises a polymer compound and magnesium oxide in the amount of 25 to 65 wt %, wherein the panel is a floor panel comprising a front side and a rear side, wherein the front side is a visible side,
wherein the polymer compound comprises Acrylic, Styrene-Acrylic, Vinyl-acetate, Vinyl-Acetate-vinylchloride, Styrene-Butadiene, vinylidene chloride or combinations thereof, and
wherein the polymer compound has a glass transition temperature, the glass transition temperature of the polymer compound being in the range of −50 to 30 C°.

16. The panel according to claim 15 , wherein the mineral-based layer further comprises a binding agent, in an amount of 5 to 25 wt %.

17. The panel according to claim 15 , wherein the mineral-based layer comprises the polymer compound in an amount of 1 to 15 wt %.

18. The panel according to claim 15 , wherein the mineral-based layer further comprises magnesium chloride and/or magnesium sulphate.

19. The panel according to claim 15 , wherein the mineral-based layer further comprises at least one filler, in an amount of 0 to 50 wt %.

20. The panel according to claim 15 , wherein the mineral-based layer further comprises a binding agent, in an amount of 0 to 30 wt %.

21. The panel according to claim 15 , wherein the mineral-based layer further comprises at least one additive, in an amount of 0 to 20 wt %.

22. The panel according to claim 15 , wherein one or more of said mineral-based layers comprises reinforcement fibres embedded in a mineral-based matrix, wherein the fibres are configured to increase the tensile strength of the mineral-based layer.

23. The panel according to claim 15 , wherein the panel comprises a mechanical locking system at respective opposite first and second edges for assembling a first panel in an assembled position with an adjacent second panel by means of a folding displacement F and/or a vertical displacement of the adjacent panels; wherein immediately juxtaposed upper edge portions of the first edge of the first panel and the second edge of the second panel in the assembled position form a vertical plane; the first edge comprising a locking strip projecting beyond the vertical plane and a locking element projecting from the locking strip; the second edge comprising a downwards open locking groove configured to receive the locking element by means of said displacement for horizontal locking of the adjacent panels, wherein a first pair of horizontal locking surfaces comprises a first locking surface provided by the locking element and a second locking surface provided by the locking groove.

24. The panel according to claim 15 , wherein the mineral-based layer comprises the polymer compound in an amount of 5 to 15 wt %.

25. The panel according to claim 15 , wherein the mineral-based layer comprises the polymer compound in an amount of 5 to 10 wt %.

26. The panel according to claim 25 , wherein the glass transition temperature of the polymer compound is in the range of −10 to 20° C.

27. The panel according to claim 15 , wherein the glass transition temperature of the polymer compound is in the range of −10 to 20° C.

Assignees

• Vaelinge Innovation Ab

Inventors

• Nilsson Christoffer
• Josefsson Per
• Boo Christian

Classifications

• B32B9/005

  comprising one layer of ceramic material, e.g. porcelain, ceramic tile (layered products with at least two ceramic layers composed mainly of ceramic B32B18/00) · CPC title

• B32B2419/00

  Buildings or parts thereof · CPC title

• E04F2201/043

  with tongues and grooves being formed by projecting or recessed parts of the panel layers · CPC title

• E04F2201/023

  with a continuous tongue or groove · CPC title

• E04F2201/0153

  by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement · CPC title