US Patent 7257929 Assembling module for floor or wall coverings

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.