US 12,247,407 B2
Floor panel for forming a floor covering, and substrate for a panel
Martin Segaert, Ypres (BE)
Assigned to UNILIN BV, Wielsbeke (BE)
Filed by FLOORING INDUSTRIES LIMITED, SARL, Bertrange (LU)
Filed on Jul. 17, 2023, as Appl. No. 18/353,134.
Application 18/353,134 is a continuation of application No. 17/037,831, filed on Sep. 30, 2020, granted, now 11,746,540.
Application 17/037,831 is a continuation of application No. 16/671,227, filed on Nov. 1, 2019, granted, now 10,829,943, issued on Nov. 10, 2020.
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 2023/0374796 A1, Nov. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E04F 15/10 (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); E04F 15/02 (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)] 19 Claims
OG exemplary drawing
 
1. 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 having a composition comprising at least a thermoplastic synthetic material; said thermoplastic synthetic material being polypropylene or polystyrene or a combination of both,
wherein the composition, apart from the thermoplastic synthetic material, comprises at least one or more elastomers and at least one filler, wherein the at least one filler is chalk, limestone and/or talc, and that an amount of the at least one filler is more than 20 wt %.