Web materials having elastic-like and expansive zones
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United States of America Patent
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Nov 30, 1999
Issued Date -
N/A
app pub date -
Sep 15, 1997
filing date -
Dec 4, 1995
priority date (Note) -
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Abstract
A web material exhibiting both an elastic-like and an expansive behavior in response to an applied elongation. The web material includes an elastic-like zone and an expansive zone disposed adjacent to the elastic-like zone. The expansive zone allows the elastic-like zone to extend without generating excessive tensional forces. The elastic-like zone includes a strainable network having a first region and a second region. The second region has a surface-pathlength greater than the surface-pathlength of the first region. The expansive zone has a surface-pathlength greater than the first region and different than that of the second region.
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