Packaging cover

Details Packaging cover Packaging cover

1998-06-08

1999-08-03

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428102, 428137, 428192, 428910, 442334, 442364, 442382, 442389, 442401, B32B 2714

Patent

active

059323221

ABSTRACT:
A nonwoven bulky composite sheet material has first and second vapor permeable layers on opposite sides of a third layer of a bulky, flexible material. The third layer has a thickness in the range of 0.3 to 3.0 mm before being bonded between said first and second layers. The first layer, the second layer and the third layer are bonded together to form a flexible composite sheet with a thickness of at least 0.3 3 mm and a moisture vapor transmission of at least 100 g/m.sup.2 in 24 hours.

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Encyclopedia of Chemical Technology, vol. 16, John Wiley & Sons, NY, pp. 76-77, 1981.

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