Patent ID: 6914018

Claim:
A biaxial elastic stretch, breathable laminate, consisting essentially of: a water vapor-permeable elastic film comprising a polymer selected from a group consisting of polyurethanes, polyether amides, polyester elastomers and combinations thereof; and a spunbond nonwoven web, having machine direction stretch and cross direction stretch, bonded to the film, wherein the spunbond nonwoven web is creped without the use of intermediate fixing steps to achieve the machine direction stretch and bonded to the elastic film whereby the film has a water vapor transmission rate of at least about 500 grams/m 2 —24 hours; wherein spunbond nonwoven web comprises a side by side bi-component spunbond fiber having a primary side and a secondary side and wherein the primary side comprises polypropylene and the secondary side comprises a polymer that quenches in a differential manner than polypropylene.