Co-extruded mask layer

Details Co-extruded mask layer Co-extruded mask layer

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 27/30 (2006.01)

Patent

CA 2572482

Co-extruded multilayer sheets that include a mask layer (12) and a polymer layer (14) are described. The mask layer (12) exhibits a low level of adhesion with the polymer layer (14) so it can be removed. The mask layer (12) can adhere to the polymer layer (14) during thermoforming and other secondary processing steps. The multilayer sheets can include any number of additional layers.

L'invention concerne des feuilles multicouches coextrudées comprenant une couche de masque et une couche polymère. La couche de masque présente un faible niveau d'adhérence à la couche polymère et peut donc être enlevée. Cette couche de masque peut adhérer à la couche polymère pendant le thermoformage et d'autres opérations de traitement secondaires. Les feuilles multicouches peuvent comprendre un nombre quelconque de couches supplémentaires.

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