US 12,320,131 B2
Thermoplastic-based building panel comprising a balancing layer
Per Josefsson, Ramlösa (SE); Christoffer Nilsson, Helsingborg (SE); and Filip Sköld, Löddeköpinge (SE)
Assigned to CERALOC INNOVATION AB, Viken (SE)
Filed by CERALOC INNOVATION AB, Viken (SE)
Filed on Jun. 15, 2023, as Appl. No. 18/210,429.
Application 18/210,429 is a continuation of application No. 17/130,783, filed on Dec. 22, 2020, granted, now 11,725,398.
Claims priority of application No. 1951558-4 (SE), filed on Dec. 27, 2019; and application No. 1951559-2 (SE), filed on Dec. 27, 2019.
Prior Publication US 2023/0323677 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E04B 2/00 (2006.01); B32B 3/06 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/22 (2006.01); B32B 27/30 (2006.01); E04F 15/02 (2006.01); E04F 15/10 (2006.01)
CPC E04F 15/107 (2013.01) [B32B 3/06 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/22 (2013.01); B32B 27/304 (2013.01); E04F 15/02038 (2013.01); E04F 15/105 (2013.01); B32B 2250/03 (2013.01); B32B 2250/246 (2013.01); B32B 2264/104 (2013.01); B32B 2307/4026 (2013.01); B32B 2419/04 (2013.01); E04F 2201/0146 (2013.01); E04F 2201/0153 (2013.01); E04F 2201/023 (2013.01); E04F 2201/042 (2013.01); E04F 2201/0535 (2013.01); E04F 2203/08 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A thermoplastic-based building panel comprising:
an upper layer arrangement,
a balancing layer comprising a thermoplastic polymer, and
a mechanical locking system for horizontally and/or vertically locking the building panel to an adjacent building panel, the mechanical locking system comprising a first cooperating surface provided in an edge portion of the building panel and being configured to cooperate with a second cooperating surface of the adjacent building panel,
wherein the first cooperating surface of the mechanical locking system is at least partially situated in the balancing layer,
wherein the balancing layer at least partially extends through a locking groove, and/or through a portion of a locking element extending vertically higher than an uppermost surface of a strip, the strip extending horizontally beyond an upper edge of the edge portion, the locking element being configured to engage with the locking groove of said adjacent building panel for horizontal locking,
wherein: (i) the balancing layer entirely extends vertically below an uppermost surface of the locking groove; and/or (ii) the balancing layer entirely extends vertically above the uppermost surface of the strip.