Polyamide multilayer film

B - Operations – Transporting – 32 – B

Patent

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B32B 27/34 (2006.01) C08G 69/48 (2006.01)

Patent

CA 2564143

A multilayer film comprises first, second, and third layers. The second layer is directly adhered to the first and third layers. The first layer comprises at least about 40 wt% of one or more modified polyamides. The second layer comprises at least about 40 wt% of one or more unmodified polyamides. The third layer comprises at least about 40 wt% of one or more selected tie polymers. The film may comprise one or more UV light absorbers. The film has good intra-film bond strength.

Un film multicouche comprend une première, une deuxième et une troisième couche. La deuxième couche est directement adhérée à la première et à la troisième couche. La première couche comprend au moins environ 40 % en poids d~un ou plusieurs polyamides modifiés. La deuxième couche comprend au moins environ 40 % en poids d~un ou plusieurs polyamides non modifiés. La troisième couche comprend au moins environ 40 % en poids d~un ou plusieurs polymères de liaison sélectionnés. Le film peut comprendre un ou plusieurs absorbeurs de lumière UV. Le film a une bonne résistance d~adhésion intra-film.

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