Flexible, heat-sealable multilayer film made from...

Details Flexible, heat-sealable multilayer film made from... Flexible, heat-sealable multilayer film made from...

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B65D 88/34 (2006.01)

Patent

CA 2123053

Flexible, heat-sealable multilayer film made from thermoplastic elastomers with an internal barrier layer A b s t r a c t The present invention relates to heat-sealable, flexible multilayer films having at least three layers, with outer layers made of thermoplastic polyurethane and/or copolyetherester elastomers and an internal layer with liquid barrier properties made of ethylene/vinyl alcohol copolymers, wherein the thermoplastic elastomers used have a Shore D hardness of at least 35 and at most 72, both measured to DIN 53 505, and the ethylene/vinyl alcohol copolymers used have an ethylene content of 10-40 wt.% related to the total weight of the ethylene/vinyl alcohol copolymers.

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