Patent ID: 6475932
Filing Date: 2002-11-05
Classification: A61F,B32B,Y10T

Abstract:
A multi-layer laminated structure comprising: a first layer of breathable material having a first bonding side; a second layer of breathable material having a second bonding side; an elastomeric web layer having a plurality of openings therethrough, the elastomeric web layer being laminated between the first layer of breathable material and the second layer of breathable material to form a multi-layer laminate structure, the elastomeric web layer being stretchable in at least one dimension, each of said first layer, second layer and elastomeric web layer having opposite edges extending longitudinally in the machine direction and a middle area between said opposite edges; and through-bonding adhesive that through-bonds the first and second layers of breathalbe materal to each other through the openings in the inner elastomeric web layer, said through-bonding adhesive disposed on the first bonding side of said first layer only at a location adjacent to the opposite edges of said first layer and leaving said middle area of said first layer free of said through-bonding adhesive, wherein an average peel strength of the through-bonding that occurs directly between the layers of breathable material is substantially greater than the average peel strength of any bonds that may be present directly between the elastomeric layer and either layer of breathable material such that the through-bonding directly between the layers of breathable material comprises the primary bond to maintain said multi-layer laminate structure so that the elastomeric web is mechanically secured within the multi-layer laminate structure via the through-bonding which occurs directly between the layers of breathable material, and further wherein the through-bonding adhesive is chemically resistant to processing aids in the elastomeric web layer.