EP3553248A1 - Ensemble de tuiles conçues pour recouvrir une surface telle qu'un sol - Google Patents

Ensemble de tuiles conçues pour recouvrir une surface telle qu'un sol Download PDF

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Publication number
EP3553248A1
EP3553248A1 EP18167351.8A EP18167351A EP3553248A1 EP 3553248 A1 EP3553248 A1 EP 3553248A1 EP 18167351 A EP18167351 A EP 18167351A EP 3553248 A1 EP3553248 A1 EP 3553248A1
Authority
EP
European Patent Office
Prior art keywords
tile
rod
thickness direction
contact surface
connecting tongue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18167351.8A
Other languages
German (de)
English (en)
Inventor
Jean-Yves Simon
Guillaume CHATTE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tarkett GDL SA
Original Assignee
Tarkett GDL SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tarkett GDL SA filed Critical Tarkett GDL SA
Priority to EP18167351.8A priority Critical patent/EP3553248A1/fr
Priority to PCT/EP2019/059556 priority patent/WO2019197666A1/fr
Priority to EP19717890.8A priority patent/EP3775431B1/fr
Publication of EP3553248A1 publication Critical patent/EP3553248A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/18—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0894—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0896—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with adhesive joining strips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0107—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/043—Other details of tongues or grooves with tongues and grooves being formed by projecting or recessed parts of the panel layers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/044—Other details of tongues or grooves with tongues or grooves comprising elements which are not manufactured in one piece with the sheets, plates or panels but which are permanently fixedly connected to the sheets, plates or panels, e.g. at the factory
    • E04F2201/049—Other details of tongues or grooves with tongues or grooves comprising elements which are not manufactured in one piece with the sheets, plates or panels but which are permanently fixedly connected to the sheets, plates or panels, e.g. at the factory wherein the elements are made of organic plastics with or without reinforcements or filling materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/07—Joining sheets or plates or panels with connections using a special adhesive material

Definitions

  • the present invention deals with a set of tiles adapted to cover a surface perpendicular to a thickness direction of the tiles, each of the tiles comprising a core layer comprising a thermoplastic material, the set comprising.
  • Such a surface is for example a floor or a wall.
  • the present invention also deals with a corresponding method of covering such a surface.
  • Such tiles may have various shapes, such as rectangular or square. They are based on synthetic materials, with a rigid core layer supporting at least one upper layer, usually several ones, intended to be visible by users once the tiles are in place. Such tiles are known as vinyl tiles, also called LVT (Luxury Vinyl Tiles).
  • the core layer brings rigidity to these tiles.
  • the hooks of the first kind cooperate with those of the second kind in order to lock the tiles next to each other.
  • tile with a rigid core layer and hooks may be difficult to connect and disconnect, as the insertion and disconnection may require a huge effort.
  • Example of what is considered as a tile with a rigid core layer in the sense of the present document are for example provided in WO 2017/133804 .
  • An aim of the invention is to provide a set of tiles that solves or reduces these problems, while remaining simple to produce, and cost effective.
  • the invention proposes a set of tiles adapted to cover a surface perpendicular to a thickness direction of the tiles, each of the tiles comprising a core layer, the set comprising:
  • the set of tiles comprises one or several of the following features, taken in isolation or any technically feasible combination:
  • the invention also deals with a method of covering a surface with tiles, the surface being perpendicular to a thickness direction of the tiles, comprising at least the following steps:
  • the step of putting the first tile and the second tile in the locked configuration comprises:
  • a set 1 of tiles 5 according to the invention will now be described with reference to the Figure.
  • the set 1 comprises a plurality of tiles 5, of which only two are partially shown.
  • the set 1 is for example adapted to cover a surface 10, such as a floor, which is approximately perpendicular to a thickness direction V of the tiles 5 and vertical in the example.
  • the surface 10 is defined by a wall.
  • the tiles 5 comprise a first tile 15 and a second tile 20 adapted to be connected to each other in a locked configuration (not shown).
  • the first tile 15 and the second tile 20 are in an unlocked configuration.
  • the tiles 5 have a same thickness E in the thickness direction V, advantageously comprised between 3.0mm and 8.0mm, for example approximately 5.5mm.
  • Each of the tiles 5 comprises a core layer 22, and advantageously one a several upper layers 24 (represented as a group in the Figure), for example a decorative layer located on the core layer, and a wear layer located on the decorative layer.
  • the tiles 5, seen in the thickness direction V are for example rectangular or square, possibly with the same dimensions.
  • the core layer 22, and the upper layers 24 are superimposed in the thickness direction V.
  • these layers are laminated to each other.
  • the core layer 22 is rigid.
  • the core layer 22 comprises at least one thermoplastic material, advantageously PVC (polyvinyl chloride), of which content is for example between 15wt% and 40wt%.
  • PVC polyvinyl chloride
  • the core layer 22 does not contain PVC.
  • the at least one thermoplastic material is chosen among PVB (Polyvinylbutyrate), polyolefins.
  • the core layer 22 advantageously contains less than 5wt% of plasticizer, and for example no plasticizer at all.
  • the skilled person knows how to adjust the rigidity of the core layer 22, by selecting its components, particularly the amount of plasticizer.
  • the core layer 22 has a composition as specified in the below table 1.
  • Table 1 composition of the core layer 22.
  • the decorative layer for example comprises a printed decor (not shown).
  • the decorative layer for example comprises 90wt% of a thermoplastic material, for example PVC, 10% of additive, and no plasticizer.
  • the wear layer is adapted to protect the decorative layer.
  • the wear layer for example comprises 80wt% of a thermoplastic material, for example PVC, 20% of additive, and no plasticizer.
  • the first tile 15 has a first edge 26 ("first” refers here to the first tile, and not to a number of edges of the tile) extending in a longitudinal direction L perpendicular to the thickness direction.
  • the first tile 15 also has a lower surface S intended to be in contact with, and advantageously fixed to the surface 10 in the example.
  • the first tile also comprises a rod 27.
  • the second tile 20 is advantageously analogous to the first tile 15 in terms of layers and composition of the layers.
  • the second tile 20 differs in the shape of its core layer 22.
  • the second tile 20 has a second edge 28 (same remark: "second" refers here to the first tile).
  • the core layer 22 of the first tile 15 defines a connecting groove 30 in the first edge 26.
  • the core layer 22 of the second tile 20 defines a connecting tongue 34 protruding from the second edge 28, and adapted to be received into the connecting groove 30 in the locked configuration.
  • the first edge 26 comprises an upper part 36 locate above the connecting groove 30, for example parallel to the thickness direction V, and adapted to abut against an upper part 38 of the second edge 28 in the locked configuration.
  • the first edge 26 also has a lower part 40 located under the connecting groove 30.
  • the connecting tongue 34 comprises a distal part 42 forming a nose, for example with a triangular profile in the longitudinal direction L, and a proximal part 44.
  • the connecting tongue 34 is adapted to be snap-fit into the connecting groove 30 in order to obtain the locked configuration.
  • the snap-fit effect is advantageously light, in order not to increase the insertion effort.
  • the proximal part 44 defines an upper surface 46 and a lower surface 48 which are for example substantially perpendicular to the thickness direction V.
  • the connecting groove 30 comprises a bottom 50.
  • the connecting groove 30 is delimited in the thickness direction V by an upper contact surface 52 and a lower surface 54 configured to be at least partly in contact respectively with the upper surface 46 and the lower surface 48 of the connecting tongue 34 in the locked configuration.
  • the bottom 50 advantageously has a "U"-shaped profile in the longitudinal direction L, said "U” opening toward the first edge 26.
  • the upper contact surface 52 is on the opposite side to the surface 10 with respect to the connecting tongue 34 in the thickness direction V.
  • the upper contact surface 52 is for example substantially perpendicular to the thickness direction V.
  • the lower contact surface 54 is on the same side as the surface 10 with respect to the connecting tongue 34 in the thickness direction V.
  • the lower contact surface 54 comprises at least one longitudinal recess 56 defined by the core layer 22 of the first tile 15. Except for the recess 56, the lower contact surface 54 is adapted to be in contact with the lower surface 48 of the connecting tongue 34 and is for example substantially perpendicular to the thickness direction V.
  • the recess 56 for example has a rectangular profile in the longitudinal direction L.
  • the recess 56 has a bottom wall 58 on which the rod 27 is fixed.
  • the recess 56 is defined by the upper contact surface 52.
  • the core layer 22 of the first tile 15 includes a lower part 62 defining the lower contact surface 54 and the lower part 40 of the first edge 26.
  • the core layer 22 further comprises an upper part 64 defining the upper contact surface 52 and the upper part 36 of the first edge 26.
  • the lower part 62 protrudes more than the upper part 64 in a latching direction C approximately perpendicular to the thickness direction V and to the longitudinal direction L.
  • the latching direction C the lower part 40 advantageously is farther from the bottom 50 than the upper part 36. This allows placing the rod 27 also farther from the bottom 50 than the upper part 36. As a result, it is possible to avoid the rod 27 when inserting the connecting tongue 34 in connecting groove 30.
  • the rod 27 has a chemical composition distinct from the chemical composition of the wall 58, and in the example distinct from the composition of the whole core layer 22 which defines the recess.
  • the rod 27 is configured to press on the connecting tongue 34 in the locked configuration in the thickness direction V.
  • the rod 27 comprises at least one plastic material.
  • the rod 27 comprises:
  • Such plastics are deformable by heat or adhere by heat, and are advantageously selected to allow being extruded in rod form. They are able to solidify and adhere particularly firmly to the core layer 22. In use, they have an appropriate elasticity and viscosity in order to act as a locking element of the connecting tongue 34 in the connecting groove 30.
  • the rod is viscoelastic or relative hard.
  • the rod 27 comprises one or several of:
  • the plastic material comprised in the rod 27 may be present in the form of a polymer or copolymer.
  • the plastic material present in the rod 27 may be present in a plasticized or non-plasticized formulation.
  • the thermoplastic material used can advantageously be applied in the recess 56 with a nozzle (not shown).
  • the rod 27 for example comprises a latent adhesive, preferably a polymer adhesive, adapted for adhering to the connecting tongue in the locked configuration after the latent adhesive has been moistened with water.
  • a latent adhesive preferably a polymer adhesive
  • the rod 27 is configured to latch the connecting tongue 34 with respect to the first tile 15 in a latching direction C approximately perpendicular to the thickness direction V and to the longitudinal direction L.
  • a latching direction C approximately perpendicular to the thickness direction V and to the longitudinal direction L.
  • relatively small quantities of thermoplastic material are sufficient.
  • the effect of the rod 27 is obtained by contact with an area of the lower surface of the connecting tongue 34.
  • the material of the rod is deposited in the recess 56 in a quantity sufficient to protrude from the mouth of the recess 56.
  • the rod 27 is advantageously configured to also latch the connecting tongue 34 in the thickness direction (V) with respect to first tile 15.
  • the locking action is obtained when the rod 27 exerts a vertical pressure on the connecting tongue 34.
  • upper surface 46 of the connecting tongue 34 is pressed against the upper contact surface 52 of the connecting groove 30.
  • the rod 27 has a sufficient strength in order not to be removed or to be damaged, when the tongue is pushed into the groove.
  • the rod 27 for example has a substantially uniform thickness E1 in the thickness direction V, preferably comprised between 5% and 40% of the thickness E of the first tile 15.
  • the thickness E1 is larger than the thickness of the recess 56.
  • the rod 27 for example forms a bulge 60 protruding from a mouth of the recess 56, that is to say protruding above the rest of the lower contact surface 54.
  • the thickness E1 is for example comprised between 0.3mm and 1.5mm, preferably between 0.6mm and 0.8mm.
  • the first tile 15 and the second tile 20 are put in the locked configuration by introducing the connecting tongue 34 into the connecting groove 30.
  • the rod 27 then presses on the connecting tongue 34 in the locked configuration.
  • the connecting tongue 34 is blocked by the upper contact surface 52 and the rod 27.
  • the rod provides a latching action on the connecting tongue.
  • the rod acts as a locking element when the tiles 15, 20 are joined.
  • the step of putting the first tile 15 and the second tile 20 in the locked configuration comprises angling the second tile with respect to the first tile, and inserting the connecting tongue 34 in the connecting groove 30 in a connection direction C1 forming an angle ⁇ with the thickness direction V around the longitudinal direction L.
  • This substep is symbolized with an arrow F1 in the Figure.
  • the step also includes a substep of pivoting (arrow F2 in the Figure) the second tile 20 with respect to the first tile 15 around the longitudinal direction L, and further inserting the connecting tongue 34 in the connecting groove 30 (arrow F3) until the locked configuration is reached.
  • the angle ⁇ is for example comprised between 15° and 70°, preferably between 30° and 60°.
  • the other tiles 5 (not shown) are connected to each other in the same manner, using connecting tongues and grooves.
  • the connecting tongue 34 ca be inserted in the connecting groove 30 with a reasonable insertion effort, despite the rigidity of the core layers 22. Then, in the locked configuration, the rod 27 acts as an efficient latching element.
  • the set 1 is easy to use, while remaining simple to produce, and cost effective.
  • the rod 27 is applied in the recess 56 during production of the tiles 5 in a simple and durable way.
EP18167351.8A 2018-04-13 2018-04-13 Ensemble de tuiles conçues pour recouvrir une surface telle qu'un sol Withdrawn EP3553248A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18167351.8A EP3553248A1 (fr) 2018-04-13 2018-04-13 Ensemble de tuiles conçues pour recouvrir une surface telle qu'un sol
PCT/EP2019/059556 WO2019197666A1 (fr) 2018-04-13 2019-04-12 Ensemble de carreaux apte à recouvrir une surface telle qu'un plancher
EP19717890.8A EP3775431B1 (fr) 2018-04-13 2019-04-12 Ensemble de carreaux apte à recouvrir une surface telle qu'un plancher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18167351.8A EP3553248A1 (fr) 2018-04-13 2018-04-13 Ensemble de tuiles conçues pour recouvrir une surface telle qu'un sol

Publications (1)

Publication Number Publication Date
EP3553248A1 true EP3553248A1 (fr) 2019-10-16

Family

ID=62002022

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18167351.8A Withdrawn EP3553248A1 (fr) 2018-04-13 2018-04-13 Ensemble de tuiles conçues pour recouvrir une surface telle qu'un sol
EP19717890.8A Active EP3775431B1 (fr) 2018-04-13 2019-04-12 Ensemble de carreaux apte à recouvrir une surface telle qu'un plancher

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19717890.8A Active EP3775431B1 (fr) 2018-04-13 2019-04-12 Ensemble de carreaux apte à recouvrir une surface telle qu'un plancher

Country Status (2)

Country Link
EP (2) EP3553248A1 (fr)
WO (1) WO2019197666A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20219110U1 (de) * 2002-12-09 2003-03-13 Kronospan Tech Co Ltd Paneele mit Kabelkanal
US20040031227A1 (en) * 2002-08-19 2004-02-19 M. Kaindl Cladding panel
DE20319121U1 (de) * 2003-01-23 2004-06-03 E.F.P. Floor Products Fussböden GmbH Paneel, insbesondere Fußbodenpaneel
WO2005090707A1 (fr) * 2004-03-23 2005-09-29 Kaindl Flooring Gmbh Plaque de jonction
WO2017133804A1 (fr) 2016-02-04 2017-08-10 Champion Link International Corporation Panneau étanche, procédé de production d'un panneau, et panneau pouvant être obtenu par ledit procédé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1010487A6 (nl) * 1996-06-11 1998-10-06 Unilin Beheer Bv Vloerbekleding bestaande uit harde vloerpanelen en werkwijze voor het vervaardigen van dergelijke vloerpanelen.
DE20321446U1 (de) * 2002-05-31 2007-05-10 Kronotec Ag Fußbodenpaneel
EP1789642B1 (fr) * 2004-09-17 2013-05-01 Dirk Dammers Panneau, notamment panneau de plancher
US7841144B2 (en) * 2005-03-30 2010-11-30 Valinge Innovation Ab Mechanical locking system for panels and method of installing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040031227A1 (en) * 2002-08-19 2004-02-19 M. Kaindl Cladding panel
DE20219110U1 (de) * 2002-12-09 2003-03-13 Kronospan Tech Co Ltd Paneele mit Kabelkanal
DE20319121U1 (de) * 2003-01-23 2004-06-03 E.F.P. Floor Products Fussböden GmbH Paneel, insbesondere Fußbodenpaneel
WO2005090707A1 (fr) * 2004-03-23 2005-09-29 Kaindl Flooring Gmbh Plaque de jonction
WO2017133804A1 (fr) 2016-02-04 2017-08-10 Champion Link International Corporation Panneau étanche, procédé de production d'un panneau, et panneau pouvant être obtenu par ledit procédé

Also Published As

Publication number Publication date
EP3775431B1 (fr) 2024-02-07
WO2019197666A1 (fr) 2019-10-17
EP3775431A1 (fr) 2021-02-17
EP3775431C0 (fr) 2024-02-07

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