US Patent 10493736 Underlay mat for floor coverings

An underlay mat (10) for floor coverings, includes a polyurethane layer (14), a nonwoven backing (18) on the underside of polyurethane layer (14), a self-adhesive film (20) on the topside of the polyurethane layer (14) and which includes a carrier film (12), a layer of adhesive (22) applied to carrier film (12), and a mesh structure (24) made of fibers which is embedded in the adhesive layer (22), and a removable protective film (26) on the topside of self-adhesive film (20).