Thermally bonded viral barrier composite

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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156176, 442398, 4283159, 428340, B32B 524

Patent

active

058659196

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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