Minnesota Mining and Manufacturing Company

Other

Nancy C Rauschenberg

Mark V Johnson

Sara L Megchelsen

A reinforced viral resistant seam for an article of protective apparel constructed by arranging first and second thermoplastic webs and at least one reinforcing strip thermally bondable with the webs along a common seam edge. An ultrasonic welding wheel having a cutting edge immediately adjacent to the welding surface is used to form a viral resistant, comfortable, high tensile strength seam suitable for articles of protective apparel.

Viral resistant seam for protective apparel, and method of manufacturing

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.

Thermally bonded viral barrier composite

A reinforced viral resistant seam for an article of protective apparel constructed by arranging first and second thermoplastic webs and at least one reinforcing strip thermally bondable with the webs along a common seam edge. An ultrasonic welding wheel having a cutting edge immediately adjacent to the welding surface is used to form a vital resistant, comfortable, high tensile strength seam suitable for articles of protective apparel.

Growing community of inventors

Woodbury, MN, United States of America

Nancy C Rauschenberg