Patent ID: 7510758

Claim:
A breathable, elastic, film laminate comprising: at least one layer of an inherently breathable, elastic polymer film comprising a thermoplastic polymer grafted to an elastomer, wherein the thermoplastic polymer contains maleic anhydride and the maleic anhydride couples the thermoplastic polymer to the elastomer; wherein the at least one layer of the elastic polymer film is between at least two film layers of polyolefin-based plastic polymer wherein at least one film layer is filled with about 50% to about 70% by weight of a non-thermoplastic filler, wherein the at least one layer of an inherently breathable, elastic polymer film retracts and the at least one filled film layer of polyolefin-based plastic polymer buckles so the elastic polymer film is partially delaminated from the at least one film layer of the polyolefin-based plastic polymer.