Microporous breathable film with internal barrier layer or...

Details Microporous breathable film with internal barrier layer or... Microporous breathable film with internal barrier layer or...

B - Operations, Transporting

32

B

B32B 33/00 (2006.01) A61L 15/22 (2006.01) B32B 27/12 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2665646

Provided are multilayer, microporous breathable barrier films and items such as laminates and garments made from such films. The films contain one or more layers of polymers without fillers in combination with at least two or more microporous breathable layers. The unfilled layers provide a barrier that can effectively allow moisture vapor to pass, but retain fluids and challenge materials.

L'invention concerne des films barrières multicouches microporeux perméables à l'air et des articles tels que des stratifiés et des vêtements fabriqués à partir de tels films. Les films contiennent une ou plusieurs couches de polymères sans charges combinées à au moins deux couches microporeuses perméables à l'air. Les couches non chargées font office de barrière qui laisse passer efficacement la vapeur d'eau mais retient les liquides et les matériaux d'épreuve.

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