Polymeric film

B - Operations – Transporting – 32 – B

Patent

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B32B 27/36 (2006.01)

Patent

CA 2205001

A polymeric film has a polyethylene terephthalate first layer and an opaque polyester second layer on a first surface of the first layer. The melting point of the polyester material of the second layer is in the range from 20 ~C to 60 ~C less than the melting point of the polyethylene terephthalate of the first layer. The second layer preferably contains titanium dioxide. The polymeric film is suitable for laminating to metal sheet for can production.

Ce film polymère présente une première couche de polyéthylène téréphtalate ainsi qu'une seconde couche de polyester opaque disposée sur une première surface de la première couche. Le point de fusion du polyester de la seconde couche est de l'ordre de 20 à 60 ~C, et est inférieur au point de fusion du polyéthylène-téréphtalate de la première couche. De préférence, la seconde couche contient du dioxyde de titane. Ce film polymère est conçu pour être stratifié sur une feuille de métal aux fins de production de boîtes métalliques.

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