Abstract: A floor panel includes male and female coupling means that are formed by at least one proximal groove that opens onto a lower face or upper face, respectively, of the panel and by a distal flexible tongue that extends from the end of the edge of the panel towards the lower face or upper face, respectively. The tongue has a proximal wall inclined at an angle with respect to a vertical plane towards the bottom and the outside of the panel and towards the top and the outside of the panel, respectively. The tongue of at least one of the male coupling means or female coupling means has a distal wall that includes, at least, a protrusion or a notch that is able to engage with a notch or a protrusion formed in or on a proximal wall of the proximal groove of the corresponding female coupling means or male coupling means so as to form an end stop, avoiding vertical movement of a panel with respect to an adjacent panel.

Abstract: Installation to obtain a radiative heating wall includes a panel form heating modular structure of ceiling height, arranged vertically with the rear face resting against a wall. Each structure includes a plurality of spaced-apart and parallel vertical members fixed to a back wall. Each member overlies a heat exchanger arranged horizontally with fluid circulation ducts, and has quick connect fittings for several protective and decorative panels. Each vertical member includes an upper member and a lower member aligned with one another and sandwiching the heat exchanger. Each modular structure has bottom and top ventilation gratings, and air conducting passages defined by strips situated between each pair of consecutive vertical members, the panels and the back wall.

Abstract: Installation to obtain a radiative heating wall includes a panel form heating modular structure of ceiling height, arranged vertically with the rear face resting against a wall. Each structure includes a plurality of spaced-apart and parallel vertical members fixed to a back wall. Each member overlies a heat exchanger arranged horizontally with fluid circulation ducts, and has quick connect fittings for several protective and decorative panels. Each vertical member includes an upper member and a lower member aligned with one another and sandwiching the heat exchanger. Each modular structure has bottom and top ventilation gratings, and air conducting passages defined by strips situated between each pair of consecutive vertical members, the panels and the back wall.

Abstract: The floor covering of the type comprising non-slip particles in its surface layer is remarkable in that the covering is made from a flexible and resilient material, and in that said particles are formed by a crushed glass core, the surface of which is fully or partially covered with a metal covering, the said particles being sprinkled in a flexible PVC base with no finishing work.

Abstract: At least one esterified fatty acid, particularly a fatty acid from tall oil that undergoes a Diels-Alder reaction or a fatty acid from oleic sunflower oil that undergoes an epoxydation reaction, is used as a PVC plasticizer, particularly for floor coverings.

Abstract: A floor covering having a double rollable reinforcement, of the type comprising on the front a calendered sheet of predefined thickness, a first reinforcement, a layer of foam and a second reinforcement, made from polyester material comprising a grid and a non-woven layer on the back, is characterized in that the first reinforcement comprises a single glass grid.

Abstract: A floor covering produced by coating and including a thermoplastic-based structure, in particular plasticized PVC, reinforced with a textile reinforcement, optionally combined with a foam backing. The visible surface consists of a surface coating providing decoration and wear resistance to the product. The back surface, designed to be in contact with the floor, consists of a textile web, the bonding between the textile structure and the supporting back surface being produced by means of an additional plastisol layer, which penetrates over a minor part of the thickness of the textile structure and which, after gelling, bonds the textile to the thermoplastic substrate back surface.

Abstract: A floor covering has a sub-layer that includes a flexible covering surface on which is provided a plurality of rigid or flexible projections. The projections are associated with a low-density foam, and foam surrounding the projections is higher than the projections while exposing the upper portion thereof.

Abstract: An appliance is provided for fitting a corner piece in the form of a module for a floor and wall covering. The appliance comprises a floor base comprising a rear part to support the operative's knees and forwardly having a fixed shaped bracket. An upper part of the bracket accommodates a support yoke which can be angularly oriented relative to the bracket. The support yoke is designed to receive a first structure for centering the appliance against the corner of the wall which receives the module, a second structure for gripping by the operative and a third structure for actuating and transmission and pressing against the module in order to obtain final shaping of the module. The third structure contributes to creep deformation of certain parts of the module to be fitted.

Abstract: At least one esterified fatty acid, particularly a fatty acid from tall oil that undergoes a Diels-Alder reaction or a fatty acid from oleic sunflower oil that undergoes an epoxydation reaction, is used as a PVC plasticizer, particularly for floor coverings.

Abstract: A floor covering having a double rollable reinforcement, of the type comprising on the front a calendered sheet of predefined thickness, a first reinforcement, a layer of foam and a second reinforcement, made from polyester material comprising a grid and a non-woven layer on the back, is characterized in that the first reinforcement comprises a single glass grid.

Abstract: A device for laying floor and wall coverings in reentrant corners comprises an independent insert obtained from the same material as the flooring and having two dimensions before laying and being defined in three dimensions after laying and having, when flat, a geometrical configuration of irregular lines so that, after laying, said insert has a regular parallelepiped geometrical configuration. The insert includes, three triangular areas, of which two of the bases are part of the peripheral outline of the insert and the third inner base makes it possible, by consecutive juxtaposition, to obtain a central triangular part sloping, after laying, and situated in a forward plane away from the corner part where the successive walls and the floor meet.

Abstract: A device for laying floor and wall coverings in reentrant corners comprises an independent insert obtained from the same material as the flooring and having two dimensions before laying and being defined in three dimensions after laying and having, when flat, a geometrical configuration of regular lines so that, after laying, said insert has a regular parallelepiped geometrical configuration. The insert includes, three triangular areas, of which two of the bases are part of the peripheral outline of the insert and the third inner base makes it possible, by consecutive juxtaposition, to obtain a central triangular part sloping, after laying, and situated in a forward plane away from the corner part where the successive walls and the floor meet.

Abstract: A floor composed of a plurality of modular elements comprises a first subassembly consisting of a base component and a first intermediate element and a second subassembly consisting of a second intermediate element and a top component forming a point elastic floor. The two subassemblies are secured together by connecting means with an angular orientation offset such as to define the contact surfaces and allow assembly by interlocking. The intermediate elements are disposed with a median honeycomb structure sandwiched between two stiffening plates of the same format and dimension. The plates are of nonwoven material and have reinforcement and stiffening disposed in a canvass of warp and weft threads.

Abstract: The invention relates to a method for laying a floor covering that includes a flexible material containing a thermoplastic wear layer made from, in particular, plasticized PVC. The basic panels that form the covering are glued to the ground and cold welded in between on the site to be covered. After a panel has been positioned and glued to the surface to be covered, a continuous bead of mastic, which is made on the actual site by mixing a hardener and a polyurethane resin in aqueous phase, is applied laterally along the entire depth of the covering. The next panel is positioned on the ground which is covered with adhesive and the lateral edge thereof is pinned against the edge of the preceding panel comprising the bead of mastic, thereby causing the excess material to come to the surface, where it is removed by simply wiping with water.

Abstract: A module includes at least an associated two-layer structure with one first layer being a polymer base layer highly loaded with mineral fillers contributing to the rigidity of the module, and a second layer made from a printed polymer film defining the decorative part of the module, and the protection of the decorative part. An outer surface of a rigidifying base layer is designed to form a spacer means in the form of a plate of dimensions substantially greater than the format of the module, over all or part thereof, to constitute after abutment of the modules and/or edge jointing of the plate edges, a zone for receiving a sealant such as a binder, putty and like bonding.

Abstract: This floor is remarkable in that the plurality of modular elements comprises a first subassembly consisting in the association of a base component (A) and a first intermediate element (B) and a second subassembly consisting in a second intermediate element (C) and a top component (D) forming the point elastic floor, the two subassemblies (S1-S2) being secured together by connecting means with an angular orientation offset such as to define the contact surfaces (13) and allow assembly by interlocking, and in that the intermediate elements (B-C) are disposed with a median honeycomb structure (6) sandwiched between two stiffening plates (7-8) of the same format and dimension, said plates being of nonwoven material and having means of reinforcement and stiffening and in that the plates have means of reinforcement disposed in a canvass of warp and weft threads.

Abstract: The invention relates to a method for laying a floor covering that includes a flexible material containing a thermoplastic wear layer made from, in particular, plasticised PVC. The basic panels that form the covering are glued to the ground and cold welded in between on the site to be covered. After a panel has been positioned and glued to the surface to be covered, a continuous bead of mastic, which is made on the actual site by mixing a hardener and a polyurethane resin in aqueous phase, is applied laterally along the entire depth of the covering. The next panel is positioned on the ground which is covered with adhesive and the lateral edge thereof is pinned against the edge of the preceding panel comprising the bead of mastic, thereby causing the excess material to come to the surface, where it is removed by simply wiping with water.

Abstract: Process for manufacturing a flat composite plastic structure, for example a floor covering, comprising a textile web and at least one layer of a plastic, for example a polyvinyl chloride, on the reverse side or on the top side, which impregnates the textile web, according to which process:a) the textile web is made available,b) a plastisol is made available,c) the textile web is coated with a layer of plastisol,d) a radiant surface is obtained by combustion of a combustible gas in contact with a porous structure,e) the layer of plastisol is heated, using the radiant surface, in order to remove the volatile organic fraction of the coated layer and to cause the plastisol to gel,wherein the combustion of the combustible gas takes place under flameless, catalytic conditions.

Abstract: Disclosed is a process for the manufacture, by coating, of a plastic web. A plastisol is deposited as a layer onto a flat support, to obtain a coating layer in the pasty state. Before the plastisol is gelled, powdering is performed by accelerating particles of plastic powder toward, the external surface of the coating layer. The powder includes particles of a thermoplastic material capable of at least partially being integrated into or dissolving in the plastisol. The particles are homogeneously incorporated in order to form a single matrix with the thermoplastic base material of the plastisol.