US 11,746,540 B2
Floor panel for forming a floor covering, and substrate for a panel
Martin Segaert, Ypres (BE)
Assigned to FLOORING INDUSTRIES LIMITED, SARL, Bertrange (LU)
Filed by UNILIN BV, Wielsbeke (BE)
Filed on Sep. 30, 2020, as Appl. No. 17/37,831.
Application 17/037,831 is a continuation of application No. 16/671,227, filed on Nov. 1, 2019, granted, now 10,829,943.
Application 16/671,227 is a continuation of application No. 16/068,909, granted, now 10,619,358, issued on Apr. 14, 2020, previously published as PCT/IB2017/050161, filed on Jan. 12, 2017.
Claims priority of application No. 2016/5036 (BE), filed on Jan. 15, 2016.
Prior Publication US 2021/0040747 A1, Feb. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E04F 15/10 (2006.01); E04F 15/02 (2006.01); B32B 3/06 (2006.01); B32B 27/06 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01)
CPC E04F 15/107 (2013.01) [B32B 3/06 (2013.01); B32B 27/06 (2013.01); B32B 27/20 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); E04F 15/02038 (2013.01); E04F 15/102 (2013.01); E04F 15/105 (2013.01); B32B 2262/101 (2013.01); B32B 2270/00 (2013.01); B32B 2274/00 (2013.01); B32B 2307/412 (2013.01); B32B 2307/414 (2013.01); B32B 2419/04 (2013.01); E04F 2201/0153 (2013.01); E04F 2201/023 (2013.01); E04F 2201/043 (2013.01)] 29 Claims
OG exemplary drawing
 
21. A floor panel for forming a floor covering, wherein the floor panel comprises a layer-shaped substrate, and a decorative top layer situated above the substrate; and wherein the substrate comprises at least a layer formed by a composition comprising at least a thermoplastic synthetic material being polyester;
wherein the thermoplastic polyester is selected from the group comprising polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polyethylene naphthalate (PEN), and combinations thereof; wherein the composition also comprises at least a filler including chalk, limestone and/or talc, wherein an amount thereof in the composition is situated between 10 wt % and 80 wt %;
wherein an amount of thermoplastic polyester in the composition is situated between 5 wt % and 50 wt %;
wherein the floor panel, on at least two opposite edges, is provided with mechanical coupling means or coupling parts, wherein these coupling means or coupling parts allow that two of such floor panels can be coupled to each other in such a manner that a locking is created in a direction perpendicular to a plane of the coupled floor panels, and in a direction perpendicular to the coupled edges and in the plane of the coupled floor panel.