Multi-layer material, especially for packaging...

Details Multi-layer material, especially for packaging... Multi-layer material, especially for packaging...

B - Operations, Transporting

32

B

B32B 27/00 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2563562

The invention relates to a multi-layer material which comprises at least the following layers in the following order: a) an EVOH-based gas-barrier layer; b) an adhesive layer based on at least one anhydride modified polymer; c) an oxygen-absorbing layer from at least one polymeric, non-particulate oxygen absorber, whereby preferably the total thickness of the adhesive layer(s) is at least approximately 10 µm. The invention also relates to a method for producing the multi-layer material and to the use thereof.

L'invention concerne un matériau multicouche qui comprend au moins les couches suivantes, dans l'ordre suivant: a) une couche formant une barrière contre les gaz, à base d'EVOH; b) une couche d'adhésif à base d'au moins un polymère modifié par anhydride; c) une couche absorbant l'oxygène, constituée d'au moins un absorbeur d'oxygène polymère non particulaire, l'épaisseur totale de la ou des couche(s) étant d'au moins environ 10 ?m. L'invention concerne également un procédé de production de cette matière multicouche et l'utilisation de celle-ci.

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