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Biaxially elastic nonwoven laminates having inelastic zones
专利权人:
Alistair Duncan Westwood
发明人:
Alistair Duncan Westwood,William M. Ferry
申请号:
US12566434
公开号:
US09168720B2
申请日:
2009.09.24
申请国别(地区):
US
年份:
2015
代理人:
摘要:
Disclosed is a method of imparting constraint in a biaxially elastic nonwoven laminate, and the constrained laminate itself, the method comprising providing a biaxially elastic nonwoven laminate comprising at least one meltspun elastic fabric and at least one extensible fabric or film and fusing at least, or preferably, only a portion(s) of the at least one meltspun elastic fabric to at least one of the extensible fabrics to create at least one inelastic zone. Desirably, the at least one meltspun elastic fabric and at least one extensible fabric or film is biaxially elastic, and referred to as being “nonwoven” due to the at least one layer of meltspun elastomer. The meltspun elastic fabric may comprise a polyolefin-based elastomer or blend of an elastomer with a thermoplastic.
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