Vapor-permeable and water-resistant sheet and method of manufacturing the same
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United States of America Patent
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Issued Date -
Sep 26, 2002
app pub date -
Jan 22, 2002
filing date -
Jan 23, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vapor-permeable and water-resistant sheet is provided with a film layer having vapor permeability and water-resistance, a spun bonded nonwoven fabric laminated onto one surface of the film layer and a reinforcement layer laminated onto the other surface of the film layer. The basis weight of the spun bonded nonwoven fabric is 20 g/m.sup.2 through 70 g/m.sup.2. The reinforcement layer has a reticular construction, and thus does not deteriorate vapor permeability and water-resistance of the film layer.
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