Patent ID: 9366035
Filing Date: 2016-06-14
CPC Classification: B27N,B32B,B44C,E04B,E04F,Y10T

Claim Text:
1. Floor panel having a rectangular and oblong shape with a pair of longitudinal opposite edges and a pair of short opposite edges, said floor panel comprising a substrate and a top layer provided on said substrate; wherein said top layer comprises a print and a thermoplastic layer situated above said print; said top layer forming a decorative side of said floor panel; wherein said substrate comprises thermoplastic material and fillers; wherein said floor panel at least at said pair of longitudinal opposite edges is provided with coupling parts allowing to couple two such floor panels to each other, such that, in a coupled condition, said two floor panels are locked to each other at the respective edge in a vertical direction perpendicular to the plane of the coupled panels, as well as in a horizontal direction perpendicular to the coupled edges and in the plane of the panels; wherein said coupling parts include a tongue and a groove, and wherein, in the coupled condition, a contact surface active in the horizontal direction is formed above the tongue with a closed chamber available between an upper surface of the tongue and the contact surface, the contact surface and the coupling parts being at least partially formed in the substrate; wherein said floor panel has a length of more than 110 centimeters and comprises means for limiting the bending by its own weight; wherein said means for limiting the bending comprise at least one glass fiber layer underneath said print; wherein said floor panel comprises at least one synthetic material layer other than a wood-based material and having a density of at least 1,000 kilograms per cubic meter.