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US 12,442,196 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.
Claims23
A floor panel comprising:
- a substrate and a decor provided on the substrate;
- wherein 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 substrate layer formed by extrusion of a composition comprising polyvinyl chloride, an amount of filler, an impact modifier and a stabilizer;
- wherein said rigid 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 of said rigid substrate layer;
- wherein a density of the rigid substrate layer is at least 1300 kg/m3;
- wherein a thickness of said rigid 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 3000 N per square millimeter.
5 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 substrate layer formed by extrusion of a composition comprising a thermoplastic material and an amount of inorganic or mineral filler;
- wherein said amount of inorganic or mineral filler is at least 60 percent by weight and said thermoplastic material is chosen from group consisting of polyethylene, polypropylene, polyester and polyethylene terephthalate;
- wherein a density of the rigid substrate layer is at least 1300 kg/m3;
- wherein a thickness of said rigid 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 substrate layer;
- wherein a center line through said tongue is in said rigid substrate layer and wherein said groove comprises a most inwardly located point, said point being situated in said rigid substrate layer;
- wherein zones in which the locking surfaces cooperate are situated at least partially in said rigid substrate layer.
8 more elements
Dependencies are inferred from the claim text.