The present invention pertains to a porous, macroscopically-expanded,
three-dimensional, elastomeric web suitable for use in elasticized
portions of disposable absorbent articles such as bandages, diapers and
pull-up diaper training pants. In a preferred embodiment the web has a
continuous first surface and a discontinuous second surface remote from
first surface. An elastomeric web of the present invention preferably
comprises a formed film having at least two polymeric layers, with at
least one of the layers being an elastomer and at least one of the other
layers being a substantially less elastomeric skin layer. In a preferred
embodiment the elastomeric web exhibits a multiplicity of primary
apertures in the first surface of the web, the primary apertures being
defined in the plane of the first surface by a continuous network of
interconnecting members. Each interconnecting member exhibits an upwardly
concave-shaped cross-section along its length. The interconnecting
members terminate substantially concurrently with one another to form a
secondary aperture in the plane of the second surface of the web. Also
disclosed is a method of producing the elastomeric web of the present
invention comprising providing a multilayer elastomeric film, supporting
the film on a forming structure, and applying a fluid pressure
differential across the thickness of the multilayer film. The fluid
pressure differential is sufficiently great to cause the multilayer film
to conform to the supporting structure and rupture in at least portions
of the formed film.