Films having low density and low haze

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/18 (2006.01)

Patent

CA 2738636

Disclosed are single and multi-layer films having low haze and low density properties, comprising at least one polymeric layer and at least one density reduction agent, wherein the film has a haze <= 35% and a density (D) of at least 1% lower than the density of the polymer. The density reduction agent may be added to, for example, a core layer, one or more tie layers, or a core layer and one or more tie layers. Processes for the manufacture of these films, and the use of these films as labels and packaging products are disclosed.

La présente invention concerne des films simples et multicouches ayant des propriétés de faible voile et de faible densité, comprenant au moins une couche polymère et au moins un agent de diminution de la densité, le film ayant un voile inférieur ou égal à 35 % et une densité (D) inférieure dau moins 1 % à la densité du polymère. Lagent de diminution de la densité peut être ajouté, par exemple, à une couche centrale, à une ou plusieurs couches de liaison, ou à une couche centrale et une ou plusieurs couches de liaison. Linvention concerne également des procédés de fabrication de ces films, et lutilisation de ces films comme étiquettes et produits de conditionnement.

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