Barrier membranes including a barrier layer employing...

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B - Operations, Transporting

32

B

B32B 27/08 (2006.01) A43B 13/20 (2006.01) B29C 47/06 (2006.01) B32B 3/02 (2006.01) B32B 27/30 (2006.01) B32B 27/40 (2006.01) C08L 29/04 (2006.01) C08L 75/06 (2006.01) F16F 9/04 (2006.01)

Patent

CA 2177332

The present invention relates to barrier membranes including a barrier layer which includes one or more thermoplastic urethane formed from polyester polyols. More particularly, the membranes include a barrier layer including blends of one or more polyester polyol based thermoplastic urethanes and one or more copolymers of ethylene and vinyl alcohol. The barrier membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.

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