Patent ID: 7855316
Filing Date: 2010-12-21
Classification: A61F,B32B,Y10T

Abstract:
1. An elastic laminate comprising: a) an elastic film having first and second major surfaces; b) an extendable web; c) the extendable web bonded to the first major surface of the elastic film; and d) the extendable web having perforations therethrough, the perforations being oriented off-axis from a longitudinal axis and a transverse axis of the elastic laminate, the perforations being in first and second perforated zones separated by a zone of unperforated material, the zone of unperforated material defining a first width in the transverse direction, wherein a second width in the transverse direction is defined by a transverse width between individual perforations within the first and second zone, the first width being substantially greater than the second width, the perforations in the first perforated zone being oriented at a first off-axis angle, the perforations in the second perforated zone being oriented at a second opposing off-axis angle, whereby a preferential direction of extendability and retraction is produced in the elastic laminate.