US 12,331,530 B2
Flooring element
Kristof Van Vlassenrode, Deinze (BE); and Jurgen Goessens, Dalton, GA (US)
Assigned to Unilin BV, Wielsbeke (BE)
Appl. No. 17/757,118
Filed by Flooring Industries Limited, SARL, Bertrange (LU)
PCT Filed Nov. 27, 2020, PCT No. PCT/IB2020/061231
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/116815, PCT Pub. Date Jun. 17, 2021.
Claims priority of provisional application 62/958,981, filed on Jan. 9, 2020.
Claims priority of application No. 2019/5882 (BE), filed on Dec. 10, 2019.
Prior Publication US 2023/0010679 A1, Jan. 12, 2023
Int. Cl. E04F 15/10 (2006.01); B32B 7/12 (2006.01); B32B 21/08 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 29/06 (2006.01); E04F 15/02 (2006.01)
CPC E04F 15/107 (2013.01) [B32B 7/12 (2013.01); B32B 21/08 (2013.01); B32B 27/08 (2013.01); B32B 27/304 (2013.01); B32B 29/06 (2013.01); E04F 15/0215 (2013.01); E04F 15/105 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2305/08 (2013.01); B32B 2315/085 (2013.01); B32B 2317/12 (2013.01); B32B 2317/16 (2013.01); B32B 2327/06 (2013.01); B32B 2471/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A floor element, wherein this floor element comprises a substrate layer and a top layer applied on top thereof, wherein said top layer and said substrate layer have an essentially matching surface area, wherein the substrate layer is based on Portland cement or on magnesium oxide cement and wherein the top layer comprises a polymer layer, a carrier layer provided with a decorative print and a wearing layer; wherein said polymer layer is located between said carrier layer provided with said decorative print and the substrate layer; wherein said polymer layer is a rigid PVC layer with a plasticizer content of less than 10 phr; and wherein the substrate layer exhibits a thickness that corresponds to at least half of the thickness of the floor element and exhibits a thickness of at least 3 millimeters, wherein a further polymer layer is applied on the side of the substrate layer that is turned away from the top layer, said further polymer layer being a rigid PVC layer with a plasticizer content of less than 10 phr, wherein said polymer layer has a thickness of at least 1 millimeter and said thickness of said polymer layer is smaller than said thickness of said substrate layer and said further polymer layer has a thickness of 2 millimeters or less, wherein said polymer layer and said further polymer layer are applied to a respective side of said substrate layer by means of an adhesive.