Patent ID: 8153227

Claim:
A substrate for floorings, comprising: a pad including at least one unmelted first heat-meltable material; a stabilizing mesh comprising at least one unmelted second heat-meltable material; and a connection layer between said pad and said mesh, said connection layer comprising a third heat-meltable material with a melting point lower than a melting point of said first meltable material and said second heat-meltable material, said connection layer connected to said mesh and said pad by melting of said third heat-meltable material to cause a mechanical connection of said mesh to said pad; and said connection layer being a discontinuous layer formed of a plurality of granules separated from each other with openings therebetween so that said substrate is permeable to liquids through said openings; wherein said mesh includes yarns extending lengthwise of said substrate and yarns extending crosswise of said substrate, wherein said lengthwise yarns are of said second heat-meltable material and said crosswise yarns are of a further heat-meltable material and are melted to bond said crosswise yarns to said further heat-meltable material.