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US 11,993,939 B2Granted
Floor panel
AssigneeUnilin BV
InventorsKristof Van Vlassenrode, Paul Brusseel, Nick Vanhulle, Jochen Bossuyt
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Abstract
A floor panel with a substrate, including thermoplastic material, a decor provided thereon, and, on at least one pair of opposite edges, coupling parts realized at least partially from the substrate. The coupling parts allow a mechanical locking between two of such floor panels, where the substrate includes a rigid, non-foamed substrate layer of thermoplastic material.
Claims29
A floor panel comprising:
- a substrate formed from thermoplastic material;
- a decor provided on the substrate;
- and,
- on at least one pair of opposite edges of the substrate, coupling parts realized at least partially from the substrate,
- wherein said coupling parts are configured to effect a mechanical locking between two of such floor panels,
- wherein the substrate comprises a rigid, non-foamed substrate layer formed by extrusion of a composition consisting essentially of a thermoplastic material, an amount of filler and one or more of an impact modifier, a stabilizer and a color pigment;
- wherein said rigid, non-foamed substrate layer is free from plasticizers or comprises an amount of less than 5 phr of plasticizers;
- wherein said amount of filler is at least 60 percent by weight and said thermoplastic material is polyvinyl chloride;
- wherein a density of the rigid, non-foamed substrate layer is at least 1300 kg/m3;
- wherein a thickness of said rigid, non-foamed substrate layer is at least 65% of an overall thickness of said floor panel;
- wherein said overall thickness of said floor panel is between 3 and 10 mm, the floor panel showing a modulus of elasticity or Young's modulus of at least 2000 N per square millimeter.
8 more elements
A floor panel comprising:
- a substrate and a decor provided on the substrate;
- and,
- on at least one pair of opposite edges of the substrate, coupling parts realized at least partially from the substrate, wherein said coupling parts are configured to, in a coupled condition of two such floor panels, effect a mechanical locking at said one pair of opposite edges, wherein said mechanical locking is operative in both a horizontal direction and a vertical direction, said coupling parts being realized as a tongue and groove connection, the groove being bordered by an upper and a lower lip, wherein said tongue and groove connection comprises locking elements in the form of a protrusion at a lower side of the tongue and a recess in an upper side of the lower lip, which, in a coupled condition, counteract a moving apart of the tongue and the groove in a horizontal direction, wherein said mechanical locking is realized by cooperating locking surfaces of said tongue and groove and said locking elements;
- wherein the substrate comprises a rigid, non-foamed substrate layer formed by extrusion of a composition consisting essentially of a thermoplastic material, an amount of inorganic or mineral filler and one or more of an impact modifier, a stabilizer and a color pigment;
- wherein said rigid, non-foamed substrate layer is free from plasticizers or comprises an amount of less than 5phr of plasticizers;
- wherein said amount of inorganic or mineral filler is at least 60 percent by weight and said thermoplastic material is polyvinyl chloride;
- wherein a density of the rigid, non-foamed substrate layer is at least 1300 kg/m3;
- wherein a thickness of said rigid, non-foamed substrate layer is at least 65% of an overall thickness of said floor panel;
- wherein said overall thickness of said floor panel is between 3 and 10 mm, the floor panel showing a modulus of elasticity or Young's modulus of at least 2000 N per square millimeter;
- wherein said upper lip and said lower lip are at least partially realized from said rigid, non-foamed substrate layer;
- wherein a center line through said tongue is in said rigid, non-foamed substrate layer and wherein said groove comprises a most inwardly located point, said point being situated in said rigid, non-foamed substrate layer;
- wherein zones in which the locking surfaces cooperate are situated at least partially in said rigid substrate layer.
9 more elements
Dependencies are inferred from the claim text.