Stock material or miscellaneous articles – Sheets or webs edge spliced or joined
Patent
1995-12-13
1998-07-28
McCamish, Marion E.
Stock material or miscellaneous articles
Sheets or webs edge spliced or joined
442397, 442398, 442401, 2456, B32B 518
Patent
active
057860580
ABSTRACT:
A viral barrier composite of a thermoplastic film thermally bonded on at least one side thereof to a breathable thermoplastic web, and method for making the same. The viral barrier composite has viral barrier properties, a moisture vapor transmission rate of at least 700 g/m.sup.2 /24 hours and a bond strength between the thermoplastic film and breathable thermoplastic web of at least 0.07N/cm. The viral barrier composite is formed by calendering an assembly comprising a thermoplastic film and a breathable thermoplastic web between a smooth roll and a pattern roll. The viral barrier composite may be used for constructing articles of protective apparel.
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Johnson Mark V.
Megchelsen Sara L.
Rauschenberg Nancy C.
Bond William J.
Cole Elizabeth M.
Griswold Gary L.
Kirn Walter N.
McCamish Marion E.
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